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authorTrond Myklebust <Trond.Myklebust@netapp.com>2009-09-11 14:59:37 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2009-09-11 14:59:37 -0400
commitab3bbaa8b257845e248e9a01d12a69ca245f4197 (patch)
treef3054be9bd612194826ed6969d01346d329c3306
parent332a3392188e0ad966543c87b8da2b9d246f301d (diff)
parent2ecda72b49a0849ce41e7fa1fa974a245b9119f8 (diff)
Merge branch 'nfs-for-2.6.32'
Diffstat
-rw-r--r--Documentation/filesystems/nfs.txt98
-rw-r--r--Documentation/kernel-parameters.txt29
-rw-r--r--fs/lockd/host.c14
-rw-r--r--fs/lockd/mon.c44
-rw-r--r--fs/nfs/Makefile3
-rw-r--r--fs/nfs/cache_lib.c140
-rw-r--r--fs/nfs/cache_lib.h27
-rw-r--r--fs/nfs/callback.c26
-rw-r--r--fs/nfs/client.c15
-rw-r--r--fs/nfs/direct.c3
-rw-r--r--fs/nfs/dns_resolve.c335
-rw-r--r--fs/nfs/dns_resolve.h14
-rw-r--r--fs/nfs/file.c49
-rw-r--r--fs/nfs/idmap.c6
-rw-r--r--fs/nfs/inode.c100
-rw-r--r--fs/nfs/internal.h39
-rw-r--r--fs/nfs/mount_clnt.c83
-rw-r--r--fs/nfs/nfs3proc.c1
-rw-r--r--fs/nfs/nfs4namespace.c24
-rw-r--r--fs/nfs/nfs4proc.c40
-rw-r--r--fs/nfs/nfs4xdr.c1460
-rw-r--r--fs/nfs/super.c451
-rw-r--r--fs/nfs/write.c91
-rw-r--r--fs/nfsd/export.c14
-rw-r--r--fs/nfsd/nfs4idmap.c20
-rw-r--r--fs/nfsd/nfsctl.c21
-rw-r--r--include/linux/nfs4.h1
-rw-r--r--include/linux/nfs_fs_sb.h9
-rw-r--r--include/linux/sunrpc/cache.h40
-rw-r--r--include/linux/sunrpc/clnt.h43
-rw-r--r--include/linux/sunrpc/msg_prot.h17
-rw-r--r--include/linux/sunrpc/rpc_pipe_fs.h20
-rw-r--r--include/linux/sunrpc/xdr.h10
-rw-r--r--include/linux/sunrpc/xprt.h2
-rw-r--r--net/sunrpc/Makefile2
-rw-r--r--net/sunrpc/addr.c364
-rw-r--r--net/sunrpc/auth_gss/auth_gss.c12
-rw-r--r--net/sunrpc/auth_gss/svcauth_gss.c7
-rw-r--r--net/sunrpc/cache.c622
-rw-r--r--net/sunrpc/clnt.c60
-rw-r--r--net/sunrpc/rpc_pipe.c685
-rw-r--r--net/sunrpc/rpcb_clnt.c420
-rw-r--r--net/sunrpc/sunrpc_syms.c2
-rw-r--r--net/sunrpc/svcauth_unix.c14
-rw-r--r--net/sunrpc/timer.c45
-rw-r--r--net/sunrpc/xdr.c12
-rw-r--r--net/sunrpc/xprtrdma/transport.c48
-rw-r--r--net/sunrpc/xprtsock.c287
48 files changed, 4064 insertions, 1805 deletions
diff --git a/Documentation/filesystems/nfs.txt b/Documentation/filesystems/nfs.txt
new file mode 100644
index 000000000000..f50f26ce6cd0
--- /dev/null
+++ b/Documentation/filesystems/nfs.txt
@@ -0,0 +1,98 @@
1
2The NFS client
3==============
4
5The NFS version 2 protocol was first documented in RFC1094 (March 1989).
6Since then two more major releases of NFS have been published, with NFSv3
7being documented in RFC1813 (June 1995), and NFSv4 in RFC3530 (April
82003).
9
10The Linux NFS client currently supports all the above published versions,
11and work is in progress on adding support for minor version 1 of the NFSv4
12protocol.
13
14The purpose of this document is to provide information on some of the
15upcall interfaces that are used in order to provide the NFS client with
16some of the information that it requires in order to fully comply with
17the NFS spec.
18
19The DNS resolver
20================
21
22NFSv4 allows for one server to refer the NFS client to data that has been
23migrated onto another server by means of the special "fs_locations"
24attribute. See
25 http://tools.ietf.org/html/rfc3530#section-6
26and
27 http://tools.ietf.org/html/draft-ietf-nfsv4-referrals-00
28
29The fs_locations information can take the form of either an ip address and
30a path, or a DNS hostname and a path. The latter requires the NFS client to
31do a DNS lookup in order to mount the new volume, and hence the need for an
32upcall to allow userland to provide this service.
33
34Assuming that the user has the 'rpc_pipefs' filesystem mounted in the usual
35/var/lib/nfs/rpc_pipefs, the upcall consists of the following steps:
36
37 (1) The process checks the dns_resolve cache to see if it contains a
38 valid entry. If so, it returns that entry and exits.
39
40 (2) If no valid entry exists, the helper script '/sbin/nfs_cache_getent'
41 (may be changed using the 'nfs.cache_getent' kernel boot parameter)
42 is run, with two arguments:
43 - the cache name, "dns_resolve"
44 - the hostname to resolve
45
46 (3) After looking up the corresponding ip address, the helper script
47 writes the result into the rpc_pipefs pseudo-file
48 '/var/lib/nfs/rpc_pipefs/cache/dns_resolve/channel'
49 in the following (text) format:
50
51 "<ip address> <hostname> <ttl>\n"
52
53 Where <ip address> is in the usual IPv4 (123.456.78.90) or IPv6
54 (ffee:ddcc:bbaa:9988:7766:5544:3322:1100, ffee::1100, ...) format.
55 <hostname> is identical to the second argument of the helper
56 script, and <ttl> is the 'time to live' of this cache entry (in
57 units of seconds).
58
59 Note: If <ip address> is invalid, say the string "0", then a negative
60 entry is created, which will cause the kernel to treat the hostname
61 as having no valid DNS translation.
62
63
64
65
66A basic sample /sbin/nfs_cache_getent
67=====================================
68
69#!/bin/bash
70#
71ttl=600
72#
73cut=/usr/bin/cut
74getent=/usr/bin/getent
75rpc_pipefs=/var/lib/nfs/rpc_pipefs
76#
77die()
78{
79 echo "Usage: $0 cache_name entry_name"
80 exit 1
81}
82
83[ $# -lt 2 ] && die
84cachename="$1"
85cache_path=${rpc_pipefs}/cache/${cachename}/channel
86
87case "${cachename}" in
88 dns_resolve)
89 name="$2"
90 result="$(${getent} hosts ${name} | ${cut} -f1 -d\ )"
91 [ -z "${result}" ] && result="0"
92 ;;
93 *)
94 die
95 ;;
96esac
97echo "${result} ${name} ${ttl}" >${cache_path}
98
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 7936b801fe6a..ce8853755814 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1503,6 +1503,14 @@ and is between 256 and 4096 characters. It is defined in the file
1503 [NFS] set the TCP port on which the NFSv4 callback 1503 [NFS] set the TCP port on which the NFSv4 callback
1504 channel should listen. 1504 channel should listen.
1505 1505
1506 nfs.cache_getent=
1507 [NFS] sets the pathname to the program which is used
1508 to update the NFS client cache entries.
1509
1510 nfs.cache_getent_timeout=
1511 [NFS] sets the timeout after which an attempt to
1512 update a cache entry is deemed to have failed.
1513
1506 nfs.idmap_cache_timeout= 1514 nfs.idmap_cache_timeout=
1507 [NFS] set the maximum lifetime for idmapper cache 1515 [NFS] set the maximum lifetime for idmapper cache
1508 entries. 1516 entries.
@@ -2395,6 +2403,18 @@ and is between 256 and 4096 characters. It is defined in the file
2395 stifb= [HW] 2403 stifb= [HW]
2396 Format: bpp:<bpp1>[:<bpp2>[:<bpp3>...]] 2404 Format: bpp:<bpp1>[:<bpp2>[:<bpp3>...]]
2397 2405
2406 sunrpc.min_resvport=
2407 sunrpc.max_resvport=
2408 [NFS,SUNRPC]
2409 SunRPC servers often require that client requests
2410 originate from a privileged port (i.e. a port in the
2411 range 0 < portnr < 1024).
2412 An administrator who wishes to reserve some of these
2413 ports for other uses may adjust the range that the
2414 kernel's sunrpc client considers to be privileged
2415 using these two parameters to set the minimum and
2416 maximum port values.
2417
2398 sunrpc.pool_mode= 2418 sunrpc.pool_mode=
2399 [NFS] 2419 [NFS]
2400 Control how the NFS server code allocates CPUs to 2420 Control how the NFS server code allocates CPUs to
@@ -2411,6 +2431,15 @@ and is between 256 and 4096 characters. It is defined in the file
2411 pernode one pool for each NUMA node (equivalent 2431 pernode one pool for each NUMA node (equivalent
2412 to global on non-NUMA machines) 2432 to global on non-NUMA machines)
2413 2433
2434 sunrpc.tcp_slot_table_entries=
2435 sunrpc.udp_slot_table_entries=
2436 [NFS,SUNRPC]
2437 Sets the upper limit on the number of simultaneous
2438 RPC calls that can be sent from the client to a
2439 server. Increasing these values may allow you to
2440 improve throughput, but will also increase the
2441 amount of memory reserved for use by the client.
2442
2414 swiotlb= [IA-64] Number of I/O TLB slabs 2443 swiotlb= [IA-64] Number of I/O TLB slabs
2415 2444
2416 switches= [HW,M68k] 2445 switches= [HW,M68k]
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 99d737bd4325..7cb076ac6b45 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -87,18 +87,6 @@ static unsigned int nlm_hash_address(const struct sockaddr *sap)
87 return hash & (NLM_HOST_NRHASH - 1); 87 return hash & (NLM_HOST_NRHASH - 1);
88} 88}
89 89
90static void nlm_clear_port(struct sockaddr *sap)
91{
92 switch (sap->sa_family) {
93 case AF_INET:
94 ((struct sockaddr_in *)sap)->sin_port = 0;
95 break;
96 case AF_INET6:
97 ((struct sockaddr_in6 *)sap)->sin6_port = 0;
98 break;
99 }
100}
101
102/* 90/*
103 * Common host lookup routine for server & client 91 * Common host lookup routine for server & client
104 */ 92 */
@@ -177,7 +165,7 @@ static struct nlm_host *nlm_lookup_host(struct nlm_lookup_host_info *ni)
177 host->h_addrbuf = nsm->sm_addrbuf; 165 host->h_addrbuf = nsm->sm_addrbuf;
178 memcpy(nlm_addr(host), ni->sap, ni->salen); 166 memcpy(nlm_addr(host), ni->sap, ni->salen);
179 host->h_addrlen = ni->salen; 167 host->h_addrlen = ni->salen;
180 nlm_clear_port(nlm_addr(host)); 168 rpc_set_port(nlm_addr(host), 0);
181 memcpy(nlm_srcaddr(host), ni->src_sap, ni->src_len); 169 memcpy(nlm_srcaddr(host), ni->src_sap, ni->src_len);
182 host->h_version = ni->version; 170 host->h_version = ni->version;
183 host->h_proto = ni->protocol; 171 host->h_proto = ni->protocol;
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 7fce1b525849..30c933188dd7 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -61,43 +61,6 @@ static inline struct sockaddr *nsm_addr(const struct nsm_handle *nsm)
61 return (struct sockaddr *)&nsm->sm_addr; 61 return (struct sockaddr *)&nsm->sm_addr;
62} 62}
63 63
64static void nsm_display_ipv4_address(const struct sockaddr *sap, char *buf,
65 const size_t len)
66{
67 const struct sockaddr_in *sin = (struct sockaddr_in *)sap;
68 snprintf(buf, len, "%pI4", &sin->sin_addr.s_addr);
69}
70
71static void nsm_display_ipv6_address(const struct sockaddr *sap, char *buf,
72 const size_t len)
73{
74 const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
75
76 if (ipv6_addr_v4mapped(&sin6->sin6_addr))
77 snprintf(buf, len, "%pI4", &sin6->sin6_addr.s6_addr32[3]);
78 else if (sin6->sin6_scope_id != 0)
79 snprintf(buf, len, "%pI6%%%u", &sin6->sin6_addr,
80 sin6->sin6_scope_id);
81 else
82 snprintf(buf, len, "%pI6", &sin6->sin6_addr);
83}
84
85static void nsm_display_address(const struct sockaddr *sap,
86 char *buf, const size_t len)
87{
88 switch (sap->sa_family) {
89 case AF_INET:
90 nsm_display_ipv4_address(sap, buf, len);
91 break;
92 case AF_INET6:
93 nsm_display_ipv6_address(sap, buf, len);
94 break;
95 default:
96 snprintf(buf, len, "unsupported address family");
97 break;
98 }
99}
100
101static struct rpc_clnt *nsm_create(void) 64static struct rpc_clnt *nsm_create(void)
102{ 65{
103 struct sockaddr_in sin = { 66 struct sockaddr_in sin = {
@@ -307,8 +270,11 @@ static struct nsm_handle *nsm_create_handle(const struct sockaddr *sap,
307 memcpy(nsm_addr(new), sap, salen); 270 memcpy(nsm_addr(new), sap, salen);
308 new->sm_addrlen = salen; 271 new->sm_addrlen = salen;
309 nsm_init_private(new); 272 nsm_init_private(new);
310 nsm_display_address((const struct sockaddr *)&new->sm_addr, 273
311 new->sm_addrbuf, sizeof(new->sm_addrbuf)); 274 if (rpc_ntop(nsm_addr(new), new->sm_addrbuf,
275 sizeof(new->sm_addrbuf)) == 0)
276 (void)snprintf(new->sm_addrbuf, sizeof(new->sm_addrbuf),
277 "unsupported address family");
312 memcpy(new->sm_name, hostname, hostname_len); 278 memcpy(new->sm_name, hostname, hostname_len);
313 new->sm_name[hostname_len] = '\0'; 279 new->sm_name[hostname_len] = '\0';
314 280
diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile
index 845159814de2..da7fda639eac 100644
--- a/fs/nfs/Makefile
+++ b/fs/nfs/Makefile
@@ -6,7 +6,8 @@ obj-$(CONFIG_NFS_FS) += nfs.o
6 6
7nfs-y := client.o dir.o file.o getroot.o inode.o super.o nfs2xdr.o \ 7nfs-y := client.o dir.o file.o getroot.o inode.o super.o nfs2xdr.o \
8 direct.o pagelist.o proc.o read.o symlink.o unlink.o \ 8 direct.o pagelist.o proc.o read.o symlink.o unlink.o \
9 write.o namespace.o mount_clnt.o 9 write.o namespace.o mount_clnt.o \
10 dns_resolve.o cache_lib.o
10nfs-$(CONFIG_ROOT_NFS) += nfsroot.o 11nfs-$(CONFIG_ROOT_NFS) += nfsroot.o
11nfs-$(CONFIG_NFS_V3) += nfs3proc.o nfs3xdr.o 12nfs-$(CONFIG_NFS_V3) += nfs3proc.o nfs3xdr.o
12nfs-$(CONFIG_NFS_V3_ACL) += nfs3acl.o 13nfs-$(CONFIG_NFS_V3_ACL) += nfs3acl.o
diff --git a/fs/nfs/cache_lib.c b/fs/nfs/cache_lib.c
new file mode 100644
index 000000000000..b4ffd0146ea6
--- /dev/null
+++ b/fs/nfs/cache_lib.c
@@ -0,0 +1,140 @@
1/*
2 * linux/fs/nfs/cache_lib.c
3 *
4 * Helper routines for the NFS client caches
5 *
6 * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com>
7 */
8#include <linux/kmod.h>
9#include <linux/module.h>
10#include <linux/moduleparam.h>
11#include <linux/mount.h>
12#include <linux/namei.h>
13#include <linux/sunrpc/cache.h>
14#include <linux/sunrpc/rpc_pipe_fs.h>
15
16#include "cache_lib.h"
17
18#define NFS_CACHE_UPCALL_PATHLEN 256
19#define NFS_CACHE_UPCALL_TIMEOUT 15
20
21static char nfs_cache_getent_prog[NFS_CACHE_UPCALL_PATHLEN] =
22 "/sbin/nfs_cache_getent";
23static unsigned long nfs_cache_getent_timeout = NFS_CACHE_UPCALL_TIMEOUT;
24
25module_param_string(cache_getent, nfs_cache_getent_prog,
26 sizeof(nfs_cache_getent_prog), 0600);
27MODULE_PARM_DESC(cache_getent, "Path to the client cache upcall program");
28module_param_named(cache_getent_timeout, nfs_cache_getent_timeout, ulong, 0600);
29MODULE_PARM_DESC(cache_getent_timeout, "Timeout (in seconds) after which "
30 "the cache upcall is assumed to have failed");
31
32int nfs_cache_upcall(struct cache_detail *cd, char *entry_name)
33{
34 static char *envp[] = { "HOME=/",
35 "TERM=linux",
36 "PATH=/sbin:/usr/sbin:/bin:/usr/bin",
37 NULL
38 };
39 char *argv[] = {
40 nfs_cache_getent_prog,
41 cd->name,
42 entry_name,
43 NULL
44 };
45 int ret = -EACCES;
46
47 if (nfs_cache_getent_prog[0] == '\0')
48 goto out;
49 ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_EXEC);
50 /*
51 * Disable the upcall mechanism if we're getting an ENOENT or
52 * EACCES error. The admin can re-enable it on the fly by using
53 * sysfs to set the 'cache_getent' parameter once the problem
54 * has been fixed.
55 */
56 if (ret == -ENOENT || ret == -EACCES)
57 nfs_cache_getent_prog[0] = '\0';
58out:
59 return ret > 0 ? 0 : ret;
60}
61
62/*
63 * Deferred request handling
64 */
65void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq)
66{
67 if (atomic_dec_and_test(&dreq->count))
68 kfree(dreq);
69}
70
71static void nfs_dns_cache_revisit(struct cache_deferred_req *d, int toomany)
72{
73 struct nfs_cache_defer_req *dreq;
74
75 dreq = container_of(d, struct nfs_cache_defer_req, deferred_req);
76
77 complete_all(&dreq->completion);
78 nfs_cache_defer_req_put(dreq);
79}
80
81static struct cache_deferred_req *nfs_dns_cache_defer(struct cache_req *req)
82{
83 struct nfs_cache_defer_req *dreq;
84
85 dreq = container_of(req, struct nfs_cache_defer_req, req);
86 dreq->deferred_req.revisit = nfs_dns_cache_revisit;
87 atomic_inc(&dreq->count);
88
89 return &dreq->deferred_req;
90}
91
92struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void)
93{
94 struct nfs_cache_defer_req *dreq;
95
96 dreq = kzalloc(sizeof(*dreq), GFP_KERNEL);
97 if (dreq) {
98 init_completion(&dreq->completion);
99 atomic_set(&dreq->count, 1);
100 dreq->req.defer = nfs_dns_cache_defer;
101 }
102 return dreq;
103}
104
105int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq)
106{
107 if (wait_for_completion_timeout(&dreq->completion,
108 nfs_cache_getent_timeout * HZ) == 0)
109 return -ETIMEDOUT;
110 return 0;
111}
112
113int nfs_cache_register(struct cache_detail *cd)
114{
115 struct nameidata nd;
116 struct vfsmount *mnt;
117 int ret;
118
119 mnt = rpc_get_mount();
120 if (IS_ERR(mnt))
121 return PTR_ERR(mnt);
122 ret = vfs_path_lookup(mnt->mnt_root, mnt, "/cache", 0, &nd);
123 if (ret)
124 goto err;
125 ret = sunrpc_cache_register_pipefs(nd.path.dentry,
126 cd->name, 0600, cd);
127 path_put(&nd.path);
128 if (!ret)
129 return ret;
130err:
131 rpc_put_mount();
132 return ret;
133}
134
135void nfs_cache_unregister(struct cache_detail *cd)
136{
137 sunrpc_cache_unregister_pipefs(cd);
138 rpc_put_mount();
139}
140
diff --git a/fs/nfs/cache_lib.h b/fs/nfs/cache_lib.h
new file mode 100644
index 000000000000..76f856e284e4
--- /dev/null
+++ b/fs/nfs/cache_lib.h
@@ -0,0 +1,27 @@
1/*
2 * Helper routines for the NFS client caches
3 *
4 * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com>
5 */
6
7#include <linux/completion.h>
8#include <linux/sunrpc/cache.h>
9#include <asm/atomic.h>
10
11/*
12 * Deferred request handling
13 */
14struct nfs_cache_defer_req {
15 struct cache_req req;
16 struct cache_deferred_req deferred_req;
17 struct completion completion;
18 atomic_t count;
19};
20
21extern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name);
22extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void);
23extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq);
24extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq);
25
26extern int nfs_cache_register(struct cache_detail *cd);
27extern void nfs_cache_unregister(struct cache_detail *cd);
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 7f604c7941fb..293fa0528a6e 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -43,21 +43,29 @@ static struct svc_program nfs4_callback_program;
43unsigned int nfs_callback_set_tcpport; 43unsigned int nfs_callback_set_tcpport;
44unsigned short nfs_callback_tcpport; 44unsigned short nfs_callback_tcpport;
45unsigned short nfs_callback_tcpport6; 45unsigned short nfs_callback_tcpport6;
46static const int nfs_set_port_min = 0; 46#define NFS_CALLBACK_MAXPORTNR (65535U)
47static const int nfs_set_port_max = 65535;
48 47
49static int param_set_port(const char *val, struct kernel_param *kp) 48static int param_set_portnr(const char *val, struct kernel_param *kp)
50{ 49{
51 char *endp; 50 unsigned long num;
52 int num = simple_strtol(val, &endp, 0); 51 int ret;
53 if (endp == val || *endp || num < nfs_set_port_min || num > nfs_set_port_max) 52
53 if (!val)
54 return -EINVAL;
55 ret = strict_strtoul(val, 0, &num);
56 if (ret == -EINVAL || num > NFS_CALLBACK_MAXPORTNR)
54 return -EINVAL; 57 return -EINVAL;
55 *((int *)kp->arg) = num; 58 *((unsigned int *)kp->arg) = num;
56 return 0; 59 return 0;
57} 60}
58 61
59module_param_call(callback_tcpport, param_set_port, param_get_int, 62static int param_get_portnr(char *buffer, struct kernel_param *kp)
60 &nfs_callback_set_tcpport, 0644); 63{
64 return param_get_uint(buffer, kp);
65}
66#define param_check_portnr(name, p) __param_check(name, p, unsigned int);
67
68module_param_named(callback_tcpport, nfs_callback_set_tcpport, portnr, 0644);
61 69
62/* 70/*
63 * This is the NFSv4 callback kernel thread. 71 * This is the NFSv4 callback kernel thread.
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index c6be84a161f6..e350bd6a2334 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -809,6 +809,9 @@ static int nfs_init_server(struct nfs_server *server,
809 /* Initialise the client representation from the mount data */ 809 /* Initialise the client representation from the mount data */
810 server->flags = data->flags; 810 server->flags = data->flags;
811 server->options = data->options; 811 server->options = data->options;
812 server->caps |= NFS_CAP_HARDLINKS|NFS_CAP_SYMLINKS|NFS_CAP_FILEID|
813 NFS_CAP_MODE|NFS_CAP_NLINK|NFS_CAP_OWNER|NFS_CAP_OWNER_GROUP|
814 NFS_CAP_ATIME|NFS_CAP_CTIME|NFS_CAP_MTIME;
812 815
813 if (data->rsize) 816 if (data->rsize)
814 server->rsize = nfs_block_size(data->rsize, NULL); 817 server->rsize = nfs_block_size(data->rsize, NULL);
@@ -1075,10 +1078,6 @@ struct nfs_server *nfs_create_server(const struct nfs_parsed_mount_data *data,
1075 (unsigned long long) server->fsid.major, 1078 (unsigned long long) server->fsid.major,
1076 (unsigned long long) server->fsid.minor); 1079 (unsigned long long) server->fsid.minor);
1077 1080
1078 BUG_ON(!server->nfs_client);
1079 BUG_ON(!server->nfs_client->rpc_ops);
1080 BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
1081
1082 spin_lock(&nfs_client_lock); 1081 spin_lock(&nfs_client_lock);
1083 list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks); 1082 list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks);
1084 list_add_tail(&server->master_link, &nfs_volume_list); 1083 list_add_tail(&server->master_link, &nfs_volume_list);
@@ -1275,7 +1274,7 @@ static int nfs4_init_server(struct nfs_server *server,
1275 1274
1276 /* Initialise the client representation from the mount data */ 1275 /* Initialise the client representation from the mount data */
1277 server->flags = data->flags; 1276 server->flags = data->flags;
1278 server->caps |= NFS_CAP_ATOMIC_OPEN; 1277 server->caps |= NFS_CAP_ATOMIC_OPEN|NFS_CAP_CHANGE_ATTR;
1279 server->options = data->options; 1278 server->options = data->options;
1280 1279
1281 /* Get a client record */ 1280 /* Get a client record */
@@ -1360,10 +1359,6 @@ struct nfs_server *nfs4_create_server(const struct nfs_parsed_mount_data *data,
1360 if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN) 1359 if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
1361 server->namelen = NFS4_MAXNAMLEN; 1360 server->namelen = NFS4_MAXNAMLEN;
1362 1361
1363 BUG_ON(!server->nfs_client);
1364 BUG_ON(!server->nfs_client->rpc_ops);
1365 BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
1366
1367 spin_lock(&nfs_client_lock); 1362 spin_lock(&nfs_client_lock);
1368 list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks); 1363 list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks);
1369 list_add_tail(&server->master_link, &nfs_volume_list); 1364 list_add_tail(&server->master_link, &nfs_volume_list);
@@ -1401,7 +1396,7 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
1401 1396
1402 /* Initialise the client representation from the parent server */ 1397 /* Initialise the client representation from the parent server */
1403 nfs_server_copy_userdata(server, parent_server); 1398 nfs_server_copy_userdata(server, parent_server);
1404 server->caps |= NFS_CAP_ATOMIC_OPEN; 1399 server->caps |= NFS_CAP_ATOMIC_OPEN|NFS_CAP_CHANGE_ATTR;
1405 1400
1406 /* Get a client representation. 1401 /* Get a client representation.
1407 * Note: NFSv4 always uses TCP, */ 1402 * Note: NFSv4 always uses TCP, */
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index e4e089a8f294..6c3210099d51 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -934,9 +934,6 @@ out:
934 * back into its cache. We let the server do generic write 934 * back into its cache. We let the server do generic write
935 * parameter checking and report problems. 935 * parameter checking and report problems.
936 * 936 *
937 * We also avoid an unnecessary invocation of generic_osync_inode(),
938 * as it is fairly meaningless to sync the metadata of an NFS file.
939 *
940 * We eliminate local atime updates, see direct read above. 937 * We eliminate local atime updates, see direct read above.
941 * 938 *
942 * We avoid unnecessary page cache invalidations for normal cached 939 * We avoid unnecessary page cache invalidations for normal cached
diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c
new file mode 100644
index 000000000000..f4d54ba97cc6
--- /dev/null
+++ b/fs/nfs/dns_resolve.c
@@ -0,0 +1,335 @@
1/*
2 * linux/fs/nfs/dns_resolve.c
3 *
4 * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com>
5 *
6 * Resolves DNS hostnames into valid ip addresses
7 */
8
9#include <linux/hash.h>
10#include <linux/string.h>
11#include <linux/kmod.h>
12#include <linux/module.h>
13#include <linux/socket.h>
14#include <linux/seq_file.h>
15#include <linux/inet.h>
16#include <linux/sunrpc/clnt.h>
17#include <linux/sunrpc/cache.h>
18#include <linux/sunrpc/svcauth.h>
19
20#include "dns_resolve.h"
21#include "cache_lib.h"
22
23#define NFS_DNS_HASHBITS 4
24#define NFS_DNS_HASHTBL_SIZE (1 << NFS_DNS_HASHBITS)
25
26static struct cache_head *nfs_dns_table[NFS_DNS_HASHTBL_SIZE];
27
28struct nfs_dns_ent {
29 struct cache_head h;
30
31 char *hostname;
32 size_t namelen;
33
34 struct sockaddr_storage addr;
35 size_t addrlen;
36};
37
38
39static void nfs_dns_ent_init(struct cache_head *cnew,
40 struct cache_head *ckey)
41{
42 struct nfs_dns_ent *new;
43 struct nfs_dns_ent *key;
44
45 new = container_of(cnew, struct nfs_dns_ent, h);
46 key = container_of(ckey, struct nfs_dns_ent, h);
47
48 kfree(new->hostname);
49 new->hostname = kstrndup(key->hostname, key->namelen, GFP_KERNEL);
50 if (new->hostname) {
51 new->namelen = key->namelen;
52 memcpy(&new->addr, &key->addr, key->addrlen);
53 new->addrlen = key->addrlen;
54 } else {
55 new->namelen = 0;
56 new->addrlen = 0;
57 }
58}
59
60static void nfs_dns_ent_put(struct kref *ref)
61{
62 struct nfs_dns_ent *item;
63
64 item = container_of(ref, struct nfs_dns_ent, h.ref);
65 kfree(item->hostname);
66 kfree(item);
67}
68
69static struct cache_head *nfs_dns_ent_alloc(void)
70{
71 struct nfs_dns_ent *item = kmalloc(sizeof(*item), GFP_KERNEL);
72
73 if (item != NULL) {
74 item->hostname = NULL;
75 item->namelen = 0;
76 item->addrlen = 0;
77 return &item->h;
78 }
79 return NULL;
80};
81
82static unsigned int nfs_dns_hash(const struct nfs_dns_ent *key)
83{
84 return hash_str(key->hostname, NFS_DNS_HASHBITS);
85}
86
87static void nfs_dns_request(struct cache_detail *cd,
88 struct cache_head *ch,
89 char **bpp, int *blen)
90{
91 struct nfs_dns_ent *key = container_of(ch, struct nfs_dns_ent, h);
92
93 qword_add(bpp, blen, key->hostname);
94 (*bpp)[-1] = '\n';
95}
96
97static int nfs_dns_upcall(struct cache_detail *cd,
98 struct cache_head *ch)
99{
100 struct nfs_dns_ent *key = container_of(ch, struct nfs_dns_ent, h);
101 int ret;
102
103 ret = nfs_cache_upcall(cd, key->hostname);
104 if (ret)
105 ret = sunrpc_cache_pipe_upcall(cd, ch, nfs_dns_request);
106 return ret;
107}
108
109static int nfs_dns_match(struct cache_head *ca,
110 struct cache_head *cb)
111{
112 struct nfs_dns_ent *a;
113 struct nfs_dns_ent *b;
114
115 a = container_of(ca, struct nfs_dns_ent, h);
116 b = container_of(cb, struct nfs_dns_ent, h);
117
118 if (a->namelen == 0 || a->namelen != b->namelen)
119 return 0;
120 return memcmp(a->hostname, b->hostname, a->namelen) == 0;
121}
122
123static int nfs_dns_show(struct seq_file *m, struct cache_detail *cd,
124 struct cache_head *h)
125{
126 struct nfs_dns_ent *item;
127 long ttl;
128
129 if (h == NULL) {
130 seq_puts(m, "# ip address hostname ttl\n");
131 return 0;
132 }
133 item = container_of(h, struct nfs_dns_ent, h);
134 ttl = (long)item->h.expiry_time - (long)get_seconds();
135 if (ttl < 0)
136 ttl = 0;
137
138 if (!test_bit(CACHE_NEGATIVE, &h->flags)) {
139 char buf[INET6_ADDRSTRLEN+IPV6_SCOPE_ID_LEN+1];
140
141 rpc_ntop((struct sockaddr *)&item->addr, buf, sizeof(buf));
142 seq_printf(m, "%15s ", buf);
143 } else
144 seq_puts(m, "<none> ");
145 seq_printf(m, "%15s %ld\n", item->hostname, ttl);
146 return 0;
147}
148
149struct nfs_dns_ent *nfs_dns_lookup(struct cache_detail *cd,
150 struct nfs_dns_ent *key)
151{
152 struct cache_head *ch;
153
154 ch = sunrpc_cache_lookup(cd,
155 &key->h,
156 nfs_dns_hash(key));
157 if (!ch)
158 return NULL;
159 return container_of(ch, struct nfs_dns_ent, h);
160}
161
162struct nfs_dns_ent *nfs_dns_update(struct cache_detail *cd,
163 struct nfs_dns_ent *new,
164 struct nfs_dns_ent *key)
165{
166 struct cache_head *ch;
167
168 ch = sunrpc_cache_update(cd,
169 &new->h, &key->h,
170 nfs_dns_hash(key));
171 if (!ch)
172 return NULL;
173 return container_of(ch, struct nfs_dns_ent, h);
174}
175
176static int nfs_dns_parse(struct cache_detail *cd, char *buf, int buflen)
177{
178 char buf1[NFS_DNS_HOSTNAME_MAXLEN+1];
179 struct nfs_dns_ent key, *item;
180 unsigned long ttl;
181 ssize_t len;
182 int ret = -EINVAL;
183
184 if (buf[buflen-1] != '\n')
185 goto out;
186 buf[buflen-1] = '\0';
187
188 len = qword_get(&buf, buf1, sizeof(buf1));
189 if (len <= 0)
190 goto out;
191 key.addrlen = rpc_pton(buf1, len,
192 (struct sockaddr *)&key.addr,
193 sizeof(key.addr));
194
195 len = qword_get(&buf, buf1, sizeof(buf1));
196 if (len <= 0)
197 goto out;
198
199 key.hostname = buf1;
200 key.namelen = len;
201 memset(&key.h, 0, sizeof(key.h));
202
203 ttl = get_expiry(&buf);
204 if (ttl == 0)
205 goto out;
206 key.h.expiry_time = ttl + get_seconds();
207
208 ret = -ENOMEM;
209 item = nfs_dns_lookup(cd, &key);
210 if (item == NULL)
211 goto out;
212
213 if (key.addrlen == 0)
214 set_bit(CACHE_NEGATIVE, &key.h.flags);
215
216 item = nfs_dns_update(cd, &key, item);
217 if (item == NULL)
218 goto out;
219
220 ret = 0;
221 cache_put(&item->h, cd);
222out:
223 return ret;
224}
225
226static struct cache_detail nfs_dns_resolve = {
227 .owner = THIS_MODULE,
228 .hash_size = NFS_DNS_HASHTBL_SIZE,
229 .hash_table = nfs_dns_table,
230 .name = "dns_resolve",
231 .cache_put = nfs_dns_ent_put,
232 .cache_upcall = nfs_dns_upcall,
233 .cache_parse = nfs_dns_parse,
234 .cache_show = nfs_dns_show,
235 .match = nfs_dns_match,
236 .init = nfs_dns_ent_init,
237 .update = nfs_dns_ent_init,
238 .alloc = nfs_dns_ent_alloc,
239};
240
241static int do_cache_lookup(struct cache_detail *cd,
242 struct nfs_dns_ent *key,
243 struct nfs_dns_ent **item,
244 struct nfs_cache_defer_req *dreq)
245{
246 int ret = -ENOMEM;
247
248 *item = nfs_dns_lookup(cd, key);
249 if (*item) {
250 ret = cache_check(cd, &(*item)->h, &dreq->req);
251 if (ret)
252 *item = NULL;
253 }
254 return ret;
255}
256
257static int do_cache_lookup_nowait(struct cache_detail *cd,
258 struct nfs_dns_ent *key,
259 struct nfs_dns_ent **item)
260{
261 int ret = -ENOMEM;
262
263 *item = nfs_dns_lookup(cd, key);
264 if (!*item)
265 goto out_err;
266 ret = -ETIMEDOUT;
267 if (!test_bit(CACHE_VALID, &(*item)->h.flags)
268 || (*item)->h.expiry_time < get_seconds()
269 || cd->flush_time > (*item)->h.last_refresh)
270 goto out_put;
271 ret = -ENOENT;
272 if (test_bit(CACHE_NEGATIVE, &(*item)->h.flags))
273 goto out_put;
274 return 0;
275out_put:
276 cache_put(&(*item)->h, cd);
277out_err:
278 *item = NULL;
279 return ret;
280}
281
282static int do_cache_lookup_wait(struct cache_detail *cd,
283 struct nfs_dns_ent *key,
284 struct nfs_dns_ent **item)
285{
286 struct nfs_cache_defer_req *dreq;
287 int ret = -ENOMEM;
288
289 dreq = nfs_cache_defer_req_alloc();
290 if (!dreq)
291 goto out;
292 ret = do_cache_lookup(cd, key, item, dreq);
293 if (ret == -EAGAIN) {
294 ret = nfs_cache_wait_for_upcall(dreq);
295 if (!ret)
296 ret = do_cache_lookup_nowait(cd, key, item);
297 }
298 nfs_cache_defer_req_put(dreq);
299out:
300 return ret;
301}
302
303ssize_t nfs_dns_resolve_name(char *name, size_t namelen,
304 struct sockaddr *sa, size_t salen)
305{
306 struct nfs_dns_ent key = {
307 .hostname = name,
308 .namelen = namelen,
309 };
310 struct nfs_dns_ent *item = NULL;
311 ssize_t ret;
312
313 ret = do_cache_lookup_wait(&nfs_dns_resolve, &key, &item);
314 if (ret == 0) {
315 if (salen >= item->addrlen) {
316 memcpy(sa, &item->addr, item->addrlen);
317 ret = item->addrlen;
318 } else
319 ret = -EOVERFLOW;
320 cache_put(&item->h, &nfs_dns_resolve);
321 } else if (ret == -ENOENT)
322 ret = -ESRCH;
323 return ret;
324}
325
326int nfs_dns_resolver_init(void)
327{
328 return nfs_cache_register(&nfs_dns_resolve);
329}
330
331void nfs_dns_resolver_destroy(void)
332{
333 nfs_cache_unregister(&nfs_dns_resolve);
334}
335
diff --git a/fs/nfs/dns_resolve.h b/fs/nfs/dns_resolve.h
new file mode 100644
index 000000000000..a3f0938babf7
--- /dev/null
+++ b/fs/nfs/dns_resolve.h
@@ -0,0 +1,14 @@
1/*
2 * Resolve DNS hostnames into valid ip addresses
3 */
4#ifndef __LINUX_FS_NFS_DNS_RESOLVE_H
5#define __LINUX_FS_NFS_DNS_RESOLVE_H
6
7#define NFS_DNS_HOSTNAME_MAXLEN (128)
8
9extern int nfs_dns_resolver_init(void);
10extern void nfs_dns_resolver_destroy(void);
11extern ssize_t nfs_dns_resolve_name(char *name, size_t namelen,
12 struct sockaddr *sa, size_t salen);
13
14#endif
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 05062329b678..5021b75d2d1e 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -328,6 +328,42 @@ nfs_file_fsync(struct file *file, struct dentry *dentry, int datasync)
328} 328}
329 329
330/* 330/*
331 * Decide whether a read/modify/write cycle may be more efficient
332 * then a modify/write/read cycle when writing to a page in the
333 * page cache.
334 *
335 * The modify/write/read cycle may occur if a page is read before
336 * being completely filled by the writer. In this situation, the
337 * page must be completely written to stable storage on the server
338 * before it can be refilled by reading in the page from the server.
339 * This can lead to expensive, small, FILE_SYNC mode writes being
340 * done.
341 *
342 * It may be more efficient to read the page first if the file is
343 * open for reading in addition to writing, the page is not marked
344 * as Uptodate, it is not dirty or waiting to be committed,
345 * indicating that it was previously allocated and then modified,
346 * that there were valid bytes of data in that range of the file,
347 * and that the new data won't completely replace the old data in
348 * that range of the file.
349 */
350static int nfs_want_read_modify_write(struct file *file, struct page *page,
351 loff_t pos, unsigned len)
352{
353 unsigned int pglen = nfs_page_length(page);
354 unsigned int offset = pos & (PAGE_CACHE_SIZE - 1);
355 unsigned int end = offset + len;
356
357 if ((file->f_mode & FMODE_READ) && /* open for read? */
358 !PageUptodate(page) && /* Uptodate? */
359 !PagePrivate(page) && /* i/o request already? */
360 pglen && /* valid bytes of file? */
361 (end < pglen || offset)) /* replace all valid bytes? */
362 return 1;
363 return 0;
364}
365
366/*
331 * This does the "real" work of the write. We must allocate and lock the 367 * This does the "real" work of the write. We must allocate and lock the
332 * page to be sent back to the generic routine, which then copies the 368 * page to be sent back to the generic routine, which then copies the
333 * data from user space. 369 * data from user space.
@@ -340,15 +376,16 @@ static int nfs_write_begin(struct file *file, struct address_space *mapping,
340 struct page **pagep, void **fsdata) 376 struct page **pagep, void **fsdata)
341{ 377{
342 int ret; 378 int ret;
343 pgoff_t index; 379 pgoff_t index = pos >> PAGE_CACHE_SHIFT;
344 struct page *page; 380 struct page *page;
345 index = pos >> PAGE_CACHE_SHIFT; 381 int once_thru = 0;
346 382
347 dfprintk(PAGECACHE, "NFS: write_begin(%s/%s(%ld), %u@%lld)\n", 383 dfprintk(PAGECACHE, "NFS: write_begin(%s/%s(%ld), %u@%lld)\n",
348 file->f_path.dentry->d_parent->d_name.name, 384 file->f_path.dentry->d_parent->d_name.name,
349 file->f_path.dentry->d_name.name, 385 file->f_path.dentry->d_name.name,
350 mapping->host->i_ino, len, (long long) pos); 386 mapping->host->i_ino, len, (long long) pos);
351 387
388start:
352 /* 389 /*
353 * Prevent starvation issues if someone is doing a consistency 390 * Prevent starvation issues if someone is doing a consistency
354 * sync-to-disk 391 * sync-to-disk
@@ -367,6 +404,13 @@ static int nfs_write_begin(struct file *file, struct address_space *mapping,
367 if (ret) { 404 if (ret) {
368 unlock_page(page); 405 unlock_page(page);
369 page_cache_release(page); 406 page_cache_release(page);
407 } else if (!once_thru &&
408 nfs_want_read_modify_write(file, page, pos, len)) {
409 once_thru = 1;
410 ret = nfs_readpage(file, page);
411 page_cache_release(page);
412 if (!ret)
413 goto start;
370 } 414 }
371 return ret; 415 return ret;
372} 416}
@@ -479,6 +523,7 @@ const struct address_space_operations nfs_file_aops = {
479 .invalidatepage = nfs_invalidate_page, 523 .invalidatepage = nfs_invalidate_page,
480 .releasepage = nfs_release_page, 524 .releasepage = nfs_release_page,
481 .direct_IO = nfs_direct_IO, 525 .direct_IO = nfs_direct_IO,
526 .migratepage = nfs_migrate_page,
482 .launder_page = nfs_launder_page, 527 .launder_page = nfs_launder_page,
483}; 528};
484 529
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index 86147b0ab2cf..21a84d45916f 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -101,7 +101,7 @@ static void idmap_pipe_destroy_msg(struct rpc_pipe_msg *);
101 101
102static unsigned int fnvhash32(const void *, size_t); 102static unsigned int fnvhash32(const void *, size_t);
103 103
104static struct rpc_pipe_ops idmap_upcall_ops = { 104static const struct rpc_pipe_ops idmap_upcall_ops = {
105 .upcall = idmap_pipe_upcall, 105 .upcall = idmap_pipe_upcall,
106 .downcall = idmap_pipe_downcall, 106 .downcall = idmap_pipe_downcall,
107 .destroy_msg = idmap_pipe_destroy_msg, 107 .destroy_msg = idmap_pipe_destroy_msg,
@@ -119,8 +119,8 @@ nfs_idmap_new(struct nfs_client *clp)
119 if (idmap == NULL) 119 if (idmap == NULL)
120 return -ENOMEM; 120 return -ENOMEM;
121 121
122 idmap->idmap_dentry = rpc_mkpipe(clp->cl_rpcclient->cl_dentry, "idmap", 122 idmap->idmap_dentry = rpc_mkpipe(clp->cl_rpcclient->cl_path.dentry,
123 idmap, &idmap_upcall_ops, 0); 123 "idmap", idmap, &idmap_upcall_ops, 0);
124 if (IS_ERR(idmap->idmap_dentry)) { 124 if (IS_ERR(idmap->idmap_dentry)) {
125 error = PTR_ERR(idmap->idmap_dentry); 125 error = PTR_ERR(idmap->idmap_dentry);
126 kfree(idmap); 126 kfree(idmap);
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index bd7938eda6a8..060022b4651c 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -46,6 +46,7 @@
46#include "iostat.h" 46#include "iostat.h"
47#include "internal.h" 47#include "internal.h"
48#include "fscache.h" 48#include "fscache.h"
49#include "dns_resolve.h"
49 50
50#define NFSDBG_FACILITY NFSDBG_VFS 51#define NFSDBG_FACILITY NFSDBG_VFS
51 52
@@ -286,6 +287,11 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
286 /* We can't support update_atime(), since the server will reset it */ 287 /* We can't support update_atime(), since the server will reset it */
287 inode->i_flags |= S_NOATIME|S_NOCMTIME; 288 inode->i_flags |= S_NOATIME|S_NOCMTIME;
288 inode->i_mode = fattr->mode; 289 inode->i_mode = fattr->mode;
290 if ((fattr->valid & NFS_ATTR_FATTR_MODE) == 0
291 && nfs_server_capable(inode, NFS_CAP_MODE))
292 nfsi->cache_validity |= NFS_INO_INVALID_ATTR
293 | NFS_INO_INVALID_ACCESS
294 | NFS_INO_INVALID_ACL;
289 /* Why so? Because we want revalidate for devices/FIFOs, and 295 /* Why so? Because we want revalidate for devices/FIFOs, and
290 * that's precisely what we have in nfs_file_inode_operations. 296 * that's precisely what we have in nfs_file_inode_operations.
291 */ 297 */
@@ -330,20 +336,46 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
330 nfsi->attr_gencount = fattr->gencount; 336 nfsi->attr_gencount = fattr->gencount;
331 if (fattr->valid & NFS_ATTR_FATTR_ATIME) 337 if (fattr->valid & NFS_ATTR_FATTR_ATIME)
332 inode->i_atime = fattr->atime; 338 inode->i_atime = fattr->atime;
339 else if (nfs_server_capable(inode, NFS_CAP_ATIME))
340 nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
333 if (fattr->valid & NFS_ATTR_FATTR_MTIME) 341 if (fattr->valid & NFS_ATTR_FATTR_MTIME)
334 inode->i_mtime = fattr->mtime; 342 inode->i_mtime = fattr->mtime;
343 else if (nfs_server_capable(inode, NFS_CAP_MTIME))
344 nfsi->cache_validity |= NFS_INO_INVALID_ATTR
345 | NFS_INO_INVALID_DATA;
335 if (fattr->valid & NFS_ATTR_FATTR_CTIME) 346 if (fattr->valid & NFS_ATTR_FATTR_CTIME)
336 inode->i_ctime = fattr->ctime; 347 inode->i_ctime = fattr->ctime;
348 else if (nfs_server_capable(inode, NFS_CAP_CTIME))
349 nfsi->cache_validity |= NFS_INO_INVALID_ATTR
350 | NFS_INO_INVALID_ACCESS
351 | NFS_INO_INVALID_ACL;
337 if (fattr->valid & NFS_ATTR_FATTR_CHANGE) 352 if (fattr->valid & NFS_ATTR_FATTR_CHANGE)
338 nfsi->change_attr = fattr->change_attr; 353 nfsi->change_attr = fattr->change_attr;
354 else if (nfs_server_capable(inode, NFS_CAP_CHANGE_ATTR))
355 nfsi->cache_validity |= NFS_INO_INVALID_ATTR
356 | NFS_INO_INVALID_DATA;
339 if (fattr->valid & NFS_ATTR_FATTR_SIZE) 357 if (fattr->valid & NFS_ATTR_FATTR_SIZE)
340 inode->i_size = nfs_size_to_loff_t(fattr->size); 358 inode->i_size = nfs_size_to_loff_t(fattr->size);
359 else
360 nfsi->cache_validity |= NFS_INO_INVALID_ATTR
361 | NFS_INO_INVALID_DATA
362 | NFS_INO_REVAL_PAGECACHE;
341 if (fattr->valid & NFS_ATTR_FATTR_NLINK) 363 if (fattr->valid & NFS_ATTR_FATTR_NLINK)
342 inode->i_nlink = fattr->nlink; 364 inode->i_nlink = fattr->nlink;
365 else if (nfs_server_capable(inode, NFS_CAP_NLINK))
366 nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
343 if (fattr->valid & NFS_ATTR_FATTR_OWNER) 367 if (fattr->valid & NFS_ATTR_FATTR_OWNER)
344 inode->i_uid = fattr->uid; 368 inode->i_uid = fattr->uid;
369 else if (nfs_server_capable(inode, NFS_CAP_OWNER))
370 nfsi->cache_validity |= NFS_INO_INVALID_ATTR
371 | NFS_INO_INVALID_ACCESS
372 | NFS_INO_INVALID_ACL;
345 if (fattr->valid & NFS_ATTR_FATTR_GROUP) 373 if (fattr->valid & NFS_ATTR_FATTR_GROUP)
346 inode->i_gid = fattr->gid; 374 inode->i_gid = fattr->gid;
375 else if (nfs_server_capable(inode, NFS_CAP_OWNER_GROUP))
376 nfsi->cache_validity |= NFS_INO_INVALID_ATTR
377 | NFS_INO_INVALID_ACCESS
378 | NFS_INO_INVALID_ACL;
347 if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED) 379 if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED)
348 inode->i_blocks = fattr->du.nfs2.blocks; 380 inode->i_blocks = fattr->du.nfs2.blocks;
349 if (fattr->valid & NFS_ATTR_FATTR_SPACE_USED) { 381 if (fattr->valid & NFS_ATTR_FATTR_SPACE_USED) {
@@ -1145,6 +1177,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
1145 loff_t cur_isize, new_isize; 1177 loff_t cur_isize, new_isize;
1146 unsigned long invalid = 0; 1178 unsigned long invalid = 0;
1147 unsigned long now = jiffies; 1179 unsigned long now = jiffies;
1180 unsigned long save_cache_validity;
1148 1181
1149 dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n", 1182 dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n",
1150 __func__, inode->i_sb->s_id, inode->i_ino, 1183 __func__, inode->i_sb->s_id, inode->i_ino,
@@ -1171,10 +1204,11 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
1171 */ 1204 */
1172 nfsi->read_cache_jiffies = fattr->time_start; 1205 nfsi->read_cache_jiffies = fattr->time_start;
1173 1206
1174 if ((fattr->valid & NFS_ATTR_FATTR_CHANGE) || (fattr->valid & (NFS_ATTR_FATTR_MTIME|NFS_ATTR_FATTR_CTIME))) 1207 save_cache_validity = nfsi->cache_validity;
1175 nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR 1208 nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR
1176 | NFS_INO_INVALID_ATIME 1209 | NFS_INO_INVALID_ATIME
1177 | NFS_INO_REVAL_PAGECACHE); 1210 | NFS_INO_REVAL_FORCED
1211 | NFS_INO_REVAL_PAGECACHE);
1178 1212
1179 /* Do atomic weak cache consistency updates */ 1213 /* Do atomic weak cache consistency updates */
1180 nfs_wcc_update_inode(inode, fattr); 1214 nfs_wcc_update_inode(inode, fattr);
@@ -1189,7 +1223,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
1189 nfs_force_lookup_revalidate(inode); 1223 nfs_force_lookup_revalidate(inode);
1190 nfsi->change_attr = fattr->change_attr; 1224 nfsi->change_attr = fattr->change_attr;
1191 } 1225 }
1192 } 1226 } else if (server->caps & NFS_CAP_CHANGE_ATTR)
1227 invalid |= save_cache_validity;
1193 1228
1194 if (fattr->valid & NFS_ATTR_FATTR_MTIME) { 1229 if (fattr->valid & NFS_ATTR_FATTR_MTIME) {
1195 /* NFSv2/v3: Check if the mtime agrees */ 1230 /* NFSv2/v3: Check if the mtime agrees */
@@ -1201,7 +1236,12 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
1201 nfs_force_lookup_revalidate(inode); 1236 nfs_force_lookup_revalidate(inode);
1202 memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime)); 1237 memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime));
1203 } 1238 }
1204 } 1239 } else if (server->caps & NFS_CAP_MTIME)
1240 invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
1241 | NFS_INO_INVALID_DATA
1242 | NFS_INO_REVAL_PAGECACHE
1243 | NFS_INO_REVAL_FORCED);
1244
1205 if (fattr->valid & NFS_ATTR_FATTR_CTIME) { 1245 if (fattr->valid & NFS_ATTR_FATTR_CTIME) {
1206 /* If ctime has changed we should definitely clear access+acl caches */ 1246 /* If ctime has changed we should definitely clear access+acl caches */
1207 if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) { 1247 if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) {
@@ -1215,7 +1255,11 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
1215 } 1255 }
1216 memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime)); 1256 memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime));
1217 } 1257 }
1218 } 1258 } else if (server->caps & NFS_CAP_CTIME)
1259 invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
1260 | NFS_INO_INVALID_ACCESS
1261 | NFS_INO_INVALID_ACL
1262 | NFS_INO_REVAL_FORCED);
1219 1263
1220 /* Check if our cached file size is stale */ 1264 /* Check if our cached file size is stale */
1221 if (fattr->valid & NFS_ATTR_FATTR_SIZE) { 1265 if (fattr->valid & NFS_ATTR_FATTR_SIZE) {
@@ -1231,30 +1275,50 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
1231 dprintk("NFS: isize change on server for file %s/%ld\n", 1275 dprintk("NFS: isize change on server for file %s/%ld\n",
1232 inode->i_sb->s_id, inode->i_ino); 1276 inode->i_sb->s_id, inode->i_ino);
1233 } 1277 }
1234 } 1278 } else
1279 invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
1280 | NFS_INO_REVAL_PAGECACHE
1281 | NFS_INO_REVAL_FORCED);
1235 1282
1236 1283
1237 if (fattr->valid & NFS_ATTR_FATTR_ATIME) 1284 if (fattr->valid & NFS_ATTR_FATTR_ATIME)
1238 memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime)); 1285 memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime));
1286 else if (server->caps & NFS_CAP_ATIME)
1287 invalid |= save_cache_validity & (NFS_INO_INVALID_ATIME
1288 | NFS_INO_REVAL_FORCED);
1239 1289
1240 if (fattr->valid & NFS_ATTR_FATTR_MODE) { 1290 if (fattr->valid & NFS_ATTR_FATTR_MODE) {
1241 if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)) { 1291 if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)) {
1242 invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; 1292 invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
1243 inode->i_mode = fattr->mode; 1293 inode->i_mode = fattr->mode;
1244 } 1294 }
1245 } 1295 } else if (server->caps & NFS_CAP_MODE)
1296 invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
1297 | NFS_INO_INVALID_ACCESS
1298 | NFS_INO_INVALID_ACL
1299 | NFS_INO_REVAL_FORCED);
1300
1246 if (fattr->valid & NFS_ATTR_FATTR_OWNER) { 1301 if (fattr->valid & NFS_ATTR_FATTR_OWNER) {
1247 if (inode->i_uid != fattr->uid) { 1302 if (inode->i_uid != fattr->uid) {
1248 invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; 1303 invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
1249 inode->i_uid = fattr->uid; 1304 inode->i_uid = fattr->uid;
1250 } 1305 }
1251 } 1306 } else if (server->caps & NFS_CAP_OWNER)
1307 invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
1308 | NFS_INO_INVALID_ACCESS
1309 | NFS_INO_INVALID_ACL
1310 | NFS_INO_REVAL_FORCED);
1311
1252 if (fattr->valid & NFS_ATTR_FATTR_GROUP) { 1312 if (fattr->valid & NFS_ATTR_FATTR_GROUP) {
1253 if (inode->i_gid != fattr->gid) { 1313 if (inode->i_gid != fattr->gid) {
1254 invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; 1314 invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
1255 inode->i_gid = fattr->gid; 1315 inode->i_gid = fattr->gid;
1256 } 1316 }
1257 } 1317 } else if (server->caps & NFS_CAP_OWNER_GROUP)
1318 invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
1319 | NFS_INO_INVALID_ACCESS
1320 | NFS_INO_INVALID_ACL
1321 | NFS_INO_REVAL_FORCED);
1258 1322
1259 if (fattr->valid & NFS_ATTR_FATTR_NLINK) { 1323 if (fattr->valid & NFS_ATTR_FATTR_NLINK) {
1260 if (inode->i_nlink != fattr->nlink) { 1324 if (inode->i_nlink != fattr->nlink) {
@@ -1263,7 +1327,9 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
1263 invalid |= NFS_INO_INVALID_DATA; 1327 invalid |= NFS_INO_INVALID_DATA;
1264 inode->i_nlink = fattr->nlink; 1328 inode->i_nlink = fattr->nlink;
1265 } 1329 }
1266 } 1330 } else if (server->caps & NFS_CAP_NLINK)
1331 invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
1332 | NFS_INO_REVAL_FORCED);
1267 1333
1268 if (fattr->valid & NFS_ATTR_FATTR_SPACE_USED) { 1334 if (fattr->valid & NFS_ATTR_FATTR_SPACE_USED) {
1269 /* 1335 /*
@@ -1293,9 +1359,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
1293 || S_ISLNK(inode->i_mode))) 1359 || S_ISLNK(inode->i_mode)))
1294 invalid &= ~NFS_INO_INVALID_DATA; 1360 invalid &= ~NFS_INO_INVALID_DATA;
1295 if (!nfs_have_delegation(inode, FMODE_READ) || 1361 if (!nfs_have_delegation(inode, FMODE_READ) ||
1296 (nfsi->cache_validity & NFS_INO_REVAL_FORCED)) 1362 (save_cache_validity & NFS_INO_REVAL_FORCED))
1297 nfsi->cache_validity |= invalid; 1363 nfsi->cache_validity |= invalid;
1298 nfsi->cache_validity &= ~NFS_INO_REVAL_FORCED;
1299 1364
1300 return 0; 1365 return 0;
1301 out_changed: 1366 out_changed:
@@ -1442,6 +1507,10 @@ static int __init init_nfs_fs(void)
1442{ 1507{
1443 int err; 1508 int err;
1444 1509
1510 err = nfs_dns_resolver_init();
1511 if (err < 0)
1512 goto out8;
1513
1445 err = nfs_fscache_register(); 1514 err = nfs_fscache_register();
1446 if (err < 0) 1515 if (err < 0)
1447 goto out7; 1516 goto out7;
@@ -1500,6 +1569,8 @@ out5:
1500out6: 1569out6:
1501 nfs_fscache_unregister(); 1570 nfs_fscache_unregister();
1502out7: 1571out7:
1572 nfs_dns_resolver_destroy();
1573out8:
1503 return err; 1574 return err;
1504} 1575}
1505 1576
@@ -1511,6 +1582,7 @@ static void __exit exit_nfs_fs(void)
1511 nfs_destroy_inodecache(); 1582 nfs_destroy_inodecache();
1512 nfs_destroy_nfspagecache(); 1583 nfs_destroy_nfspagecache();
1513 nfs_fscache_unregister(); 1584 nfs_fscache_unregister();
1585 nfs_dns_resolver_destroy();
1514#ifdef CONFIG_PROC_FS 1586#ifdef CONFIG_PROC_FS
1515 rpc_proc_unregister("nfs"); 1587 rpc_proc_unregister("nfs");
1516#endif 1588#endif
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 7dd90a6769d0..e21b1bb9972f 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -49,6 +49,11 @@ struct nfs_clone_mount {
49#define NFS_MAX_SECFLAVORS (12) 49#define NFS_MAX_SECFLAVORS (12)
50 50
51/* 51/*
52 * Value used if the user did not specify a port value.
53 */
54#define NFS_UNSPEC_PORT (-1)
55
56/*
52 * In-kernel mount arguments 57 * In-kernel mount arguments
53 */ 58 */
54struct nfs_parsed_mount_data { 59struct nfs_parsed_mount_data {
@@ -63,6 +68,7 @@ struct nfs_parsed_mount_data {
63 unsigned int auth_flavor_len; 68 unsigned int auth_flavor_len;
64 rpc_authflavor_t auth_flavors[1]; 69 rpc_authflavor_t auth_flavors[1];
65 char *client_address; 70 char *client_address;
71 unsigned int version;
66 unsigned int minorversion; 72 unsigned int minorversion;
67 char *fscache_uniq; 73 char *fscache_uniq;
68 74
@@ -71,7 +77,7 @@ struct nfs_parsed_mount_data {
71 size_t addrlen; 77 size_t addrlen;
72 char *hostname; 78 char *hostname;
73 u32 version; 79 u32 version;
74 unsigned short port; 80 int port;
75 unsigned short protocol; 81 unsigned short protocol;
76 } mount_server; 82 } mount_server;
77 83
@@ -80,7 +86,7 @@ struct nfs_parsed_mount_data {
80 size_t addrlen; 86 size_t addrlen;
81 char *hostname; 87 char *hostname;
82 char *export_path; 88 char *export_path;
83 unsigned short port; 89 int port;
84 unsigned short protocol; 90 unsigned short protocol;
85 } nfs_server; 91 } nfs_server;
86 92
@@ -102,6 +108,7 @@ struct nfs_mount_request {
102}; 108};
103 109
104extern int nfs_mount(struct nfs_mount_request *info); 110extern int nfs_mount(struct nfs_mount_request *info);
111extern void nfs_umount(const struct nfs_mount_request *info);
105 112
106/* client.c */ 113/* client.c */
107extern struct rpc_program nfs_program; 114extern struct rpc_program nfs_program;
@@ -213,7 +220,6 @@ void nfs_zap_acl_cache(struct inode *inode);
213extern int nfs_wait_bit_killable(void *word); 220extern int nfs_wait_bit_killable(void *word);
214 221
215/* super.c */ 222/* super.c */
216void nfs_parse_ip_address(char *, size_t, struct sockaddr *, size_t *);
217extern struct file_system_type nfs_xdev_fs_type; 223extern struct file_system_type nfs_xdev_fs_type;
218#ifdef CONFIG_NFS_V4 224#ifdef CONFIG_NFS_V4
219extern struct file_system_type nfs4_xdev_fs_type; 225extern struct file_system_type nfs4_xdev_fs_type;
@@ -248,6 +254,12 @@ extern void nfs_read_prepare(struct rpc_task *task, void *calldata);
248 254
249/* write.c */ 255/* write.c */
250extern void nfs_write_prepare(struct rpc_task *task, void *calldata); 256extern void nfs_write_prepare(struct rpc_task *task, void *calldata);
257#ifdef CONFIG_MIGRATION
258extern int nfs_migrate_page(struct address_space *,
259 struct page *, struct page *);
260#else
261#define nfs_migrate_page NULL
262#endif
251 263
252/* nfs4proc.c */ 264/* nfs4proc.c */
253extern int _nfs4_call_sync(struct nfs_server *server, 265extern int _nfs4_call_sync(struct nfs_server *server,
@@ -368,24 +380,3 @@ unsigned int nfs_page_array_len(unsigned int base, size_t len)
368 return ((unsigned long)len + (unsigned long)base + 380 return ((unsigned long)len + (unsigned long)base +
369 PAGE_SIZE - 1) >> PAGE_SHIFT; 381 PAGE_SIZE - 1) >> PAGE_SHIFT;
370} 382}
371
372#define IPV6_SCOPE_DELIMITER '%'
373
374/*
375 * Set the port number in an address. Be agnostic about the address
376 * family.
377 */
378static inline void nfs_set_port(struct sockaddr *sap, unsigned short port)
379{
380 struct sockaddr_in *ap = (struct sockaddr_in *)sap;
381 struct sockaddr_in6 *ap6 = (struct sockaddr_in6 *)sap;
382
383 switch (sap->sa_family) {
384 case AF_INET:
385 ap->sin_port = htons(port);
386 break;
387 case AF_INET6:
388 ap6->sin6_port = htons(port);
389 break;
390 }
391}
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index 38ef9eaec407..0adefc40cc89 100644
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -209,6 +209,71 @@ out_mnt_err:
209 goto out; 209 goto out;
210} 210}
211 211
212/**
213 * nfs_umount - Notify a server that we have unmounted this export
214 * @info: pointer to umount request arguments
215 *
216 * MOUNTPROC_UMNT is advisory, so we set a short timeout, and always
217 * use UDP.
218 */
219void nfs_umount(const struct nfs_mount_request *info)
220{
221 static const struct rpc_timeout nfs_umnt_timeout = {
222 .to_initval = 1 * HZ,
223 .to_maxval = 3 * HZ,
224 .to_retries = 2,
225 };
226 struct rpc_create_args args = {
227 .protocol = IPPROTO_UDP,
228 .address = info->sap,
229 .addrsize = info->salen,
230 .timeout = &nfs_umnt_timeout,
231 .servername = info->hostname,
232 .program = &mnt_program,
233 .version = info->version,
234 .authflavor = RPC_AUTH_UNIX,
235 .flags = RPC_CLNT_CREATE_NOPING,
236 };
237 struct mountres result;
238 struct rpc_message msg = {
239 .rpc_argp = info->dirpath,
240 .rpc_resp = &result,
241 };
242 struct rpc_clnt *clnt;
243 int status;
244
245 if (info->noresvport)
246 args.flags |= RPC_CLNT_CREATE_NONPRIVPORT;
247
248 clnt = rpc_create(&args);
249 if (unlikely(IS_ERR(clnt)))
250 goto out_clnt_err;
251
252 dprintk("NFS: sending UMNT request for %s:%s\n",
253 (info->hostname ? info->hostname : "server"), info->dirpath);
254
255 if (info->version == NFS_MNT3_VERSION)
256 msg.rpc_proc = &clnt->cl_procinfo[MOUNTPROC3_UMNT];
257 else
258 msg.rpc_proc = &clnt->cl_procinfo[MOUNTPROC_UMNT];
259
260 status = rpc_call_sync(clnt, &msg, 0);
261 rpc_shutdown_client(clnt);
262
263 if (unlikely(status < 0))
264 goto out_call_err;
265
266 return;
267
268out_clnt_err:
269 dprintk("NFS: failed to create UMNT RPC client, status=%ld\n",
270 PTR_ERR(clnt));
271 return;
272
273out_call_err:
274 dprintk("NFS: UMNT request failed, status=%d\n", status);
275}
276
212/* 277/*
213 * XDR encode/decode functions for MOUNT 278 * XDR encode/decode functions for MOUNT
214 */ 279 */
@@ -258,7 +323,7 @@ static int decode_status(struct xdr_stream *xdr, struct mountres *res)
258 return -EIO; 323 return -EIO;
259 status = ntohl(*p); 324 status = ntohl(*p);
260 325
261 for (i = 0; i <= ARRAY_SIZE(mnt_errtbl); i++) { 326 for (i = 0; i < ARRAY_SIZE(mnt_errtbl); i++) {
262 if (mnt_errtbl[i].status == status) { 327 if (mnt_errtbl[i].status == status) {
263 res->errno = mnt_errtbl[i].errno; 328 res->errno = mnt_errtbl[i].errno;
264 return 0; 329 return 0;
@@ -309,7 +374,7 @@ static int decode_fhs_status(struct xdr_stream *xdr, struct mountres *res)
309 return -EIO; 374 return -EIO;
310 status = ntohl(*p); 375 status = ntohl(*p);
311 376
312 for (i = 0; i <= ARRAY_SIZE(mnt3_errtbl); i++) { 377 for (i = 0; i < ARRAY_SIZE(mnt3_errtbl); i++) {
313 if (mnt3_errtbl[i].status == status) { 378 if (mnt3_errtbl[i].status == status) {
314 res->errno = mnt3_errtbl[i].errno; 379 res->errno = mnt3_errtbl[i].errno;
315 return 0; 380 return 0;
@@ -407,6 +472,13 @@ static struct rpc_procinfo mnt_procedures[] = {
407 .p_statidx = MOUNTPROC_MNT, 472 .p_statidx = MOUNTPROC_MNT,
408 .p_name = "MOUNT", 473 .p_name = "MOUNT",
409 }, 474 },
475 [MOUNTPROC_UMNT] = {
476 .p_proc = MOUNTPROC_UMNT,
477 .p_encode = (kxdrproc_t)mnt_enc_dirpath,
478 .p_arglen = MNT_enc_dirpath_sz,
479 .p_statidx = MOUNTPROC_UMNT,
480 .p_name = "UMOUNT",
481 },
410}; 482};
411 483
412static struct rpc_procinfo mnt3_procedures[] = { 484static struct rpc_procinfo mnt3_procedures[] = {
@@ -419,6 +491,13 @@ static struct rpc_procinfo mnt3_procedures[] = {
419 .p_statidx = MOUNTPROC3_MNT, 491 .p_statidx = MOUNTPROC3_MNT,
420 .p_name = "MOUNT", 492 .p_name = "MOUNT",
421 }, 493 },
494 [MOUNTPROC3_UMNT] = {
495 .p_proc = MOUNTPROC3_UMNT,
496 .p_encode = (kxdrproc_t)mnt_enc_dirpath,
497 .p_arglen = MNT_enc_dirpath_sz,
498 .p_statidx = MOUNTPROC3_UMNT,
499 .p_name = "UMOUNT",
500 },
422}; 501};
423 502
424 503
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index d0cc5ce0edfe..ee6a13f05443 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -299,7 +299,6 @@ static void nfs3_free_createdata(struct nfs3_createdata *data)
299 299
300/* 300/*
301 * Create a regular file. 301 * Create a regular file.
302 * For now, we don't implement O_EXCL.
303 */ 302 */
304static int 303static int
305nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 304nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index 2a2a0a7143ad..2636c26d56fa 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -17,6 +17,7 @@
17#include <linux/inet.h> 17#include <linux/inet.h>
18#include "internal.h" 18#include "internal.h"
19#include "nfs4_fs.h" 19#include "nfs4_fs.h"
20#include "dns_resolve.h"
20 21
21#define NFSDBG_FACILITY NFSDBG_VFS 22#define NFSDBG_FACILITY NFSDBG_VFS
22 23
@@ -95,6 +96,20 @@ static int nfs4_validate_fspath(const struct vfsmount *mnt_parent,
95 return 0; 96 return 0;
96} 97}
97 98
99static size_t nfs_parse_server_name(char *string, size_t len,
100 struct sockaddr *sa, size_t salen)
101{
102 ssize_t ret;
103
104 ret = rpc_pton(string, len, sa, salen);
105 if (ret == 0) {
106 ret = nfs_dns_resolve_name(string, len, sa, salen);
107 if (ret < 0)
108 ret = 0;
109 }
110 return ret;
111}
112
98static struct vfsmount *try_location(struct nfs_clone_mount *mountdata, 113static struct vfsmount *try_location(struct nfs_clone_mount *mountdata,
99 char *page, char *page2, 114 char *page, char *page2,
100 const struct nfs4_fs_location *location) 115 const struct nfs4_fs_location *location)
@@ -121,11 +136,12 @@ static struct vfsmount *try_location(struct nfs_clone_mount *mountdata,
121 136
122 if (memchr(buf->data, IPV6_SCOPE_DELIMITER, buf->len)) 137 if (memchr(buf->data, IPV6_SCOPE_DELIMITER, buf->len))
123 continue; 138 continue;
124 nfs_parse_ip_address(buf->data, buf->len, 139 mountdata->addrlen = nfs_parse_server_name(buf->data,
125 mountdata->addr, &mountdata->addrlen); 140 buf->len,
126 if (mountdata->addr->sa_family == AF_UNSPEC) 141 mountdata->addr, mountdata->addrlen);
142 if (mountdata->addrlen == 0)
127 continue; 143 continue;
128 nfs_set_port(mountdata->addr, NFS_PORT); 144 rpc_set_port(mountdata->addr, NFS_PORT);
129 145
130 memcpy(page2, buf->data, buf->len); 146 memcpy(page2, buf->data, buf->len);
131 page2[buf->len] = '\0'; 147 page2[buf->len] = '\0';
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 6917311f201c..be6544aef41f 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -61,6 +61,8 @@
61#define NFS4_POLL_RETRY_MIN (HZ/10) 61#define NFS4_POLL_RETRY_MIN (HZ/10)
62#define NFS4_POLL_RETRY_MAX (15*HZ) 62#define NFS4_POLL_RETRY_MAX (15*HZ)
63 63
64#define NFS4_MAX_LOOP_ON_RECOVER (10)
65
64struct nfs4_opendata; 66struct nfs4_opendata;
65static int _nfs4_proc_open(struct nfs4_opendata *data); 67static int _nfs4_proc_open(struct nfs4_opendata *data);
66static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *); 68static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *);
@@ -426,17 +428,19 @@ out:
426static int nfs4_recover_session(struct nfs4_session *session) 428static int nfs4_recover_session(struct nfs4_session *session)
427{ 429{
428 struct nfs_client *clp = session->clp; 430 struct nfs_client *clp = session->clp;
431 unsigned int loop;
429 int ret; 432 int ret;
430 433
431 for (;;) { 434 for (loop = NFS4_MAX_LOOP_ON_RECOVER; loop != 0; loop--) {
432 ret = nfs4_wait_clnt_recover(clp); 435 ret = nfs4_wait_clnt_recover(clp);
433 if (ret != 0) 436 if (ret != 0)
434 return ret; 437 break;
435 if (!test_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state)) 438 if (!test_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state))
436 break; 439 break;
437 nfs4_schedule_state_manager(clp); 440 nfs4_schedule_state_manager(clp);
441 ret = -EIO;
438 } 442 }
439 return 0; 443 return ret;
440} 444}
441 445
442static int nfs41_setup_sequence(struct nfs4_session *session, 446static int nfs41_setup_sequence(struct nfs4_session *session,
@@ -1444,18 +1448,20 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
1444static int nfs4_recover_expired_lease(struct nfs_server *server) 1448static int nfs4_recover_expired_lease(struct nfs_server *server)
1445{ 1449{
1446 struct nfs_client *clp = server->nfs_client; 1450 struct nfs_client *clp = server->nfs_client;
1451 unsigned int loop;
1447 int ret; 1452 int ret;
1448 1453
1449 for (;;) { 1454 for (loop = NFS4_MAX_LOOP_ON_RECOVER; loop != 0; loop--) {
1450 ret = nfs4_wait_clnt_recover(clp); 1455 ret = nfs4_wait_clnt_recover(clp);
1451 if (ret != 0) 1456 if (ret != 0)
1452 return ret; 1457 break;
1453 if (!test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) && 1458 if (!test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) &&
1454 !test_bit(NFS4CLNT_CHECK_LEASE,&clp->cl_state)) 1459 !test_bit(NFS4CLNT_CHECK_LEASE,&clp->cl_state))
1455 break; 1460 break;
1456 nfs4_schedule_state_recovery(clp); 1461 nfs4_schedule_state_recovery(clp);
1462 ret = -EIO;
1457 } 1463 }
1458 return 0; 1464 return ret;
1459} 1465}
1460 1466
1461/* 1467/*
@@ -1997,12 +2003,34 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
1997 status = nfs4_call_sync(server, &msg, &args, &res, 0); 2003 status = nfs4_call_sync(server, &msg, &args, &res, 0);
1998 if (status == 0) { 2004 if (status == 0) {
1999 memcpy(server->attr_bitmask, res.attr_bitmask, sizeof(server->attr_bitmask)); 2005 memcpy(server->attr_bitmask, res.attr_bitmask, sizeof(server->attr_bitmask));
2006 server->caps &= ~(NFS_CAP_ACLS|NFS_CAP_HARDLINKS|
2007 NFS_CAP_SYMLINKS|NFS_CAP_FILEID|
2008 NFS_CAP_MODE|NFS_CAP_NLINK|NFS_CAP_OWNER|
2009 NFS_CAP_OWNER_GROUP|NFS_CAP_ATIME|
2010 NFS_CAP_CTIME|NFS_CAP_MTIME);
2000 if (res.attr_bitmask[0] & FATTR4_WORD0_ACL) 2011 if (res.attr_bitmask[0] & FATTR4_WORD0_ACL)
2001 server->caps |= NFS_CAP_ACLS; 2012 server->caps |= NFS_CAP_ACLS;
2002 if (res.has_links != 0) 2013 if (res.has_links != 0)
2003 server->caps |= NFS_CAP_HARDLINKS; 2014 server->caps |= NFS_CAP_HARDLINKS;
2004 if (res.has_symlinks != 0) 2015 if (res.has_symlinks != 0)
2005 server->caps |= NFS_CAP_SYMLINKS; 2016 server->caps |= NFS_CAP_SYMLINKS;
2017 if (res.attr_bitmask[0] & FATTR4_WORD0_FILEID)
2018 server->caps |= NFS_CAP_FILEID;
2019 if (res.attr_bitmask[1] & FATTR4_WORD1_MODE)
2020 server->caps |= NFS_CAP_MODE;
2021 if (res.attr_bitmask[1] & FATTR4_WORD1_NUMLINKS)
2022 server->caps |= NFS_CAP_NLINK;
2023 if (res.attr_bitmask[1] & FATTR4_WORD1_OWNER)
2024 server->caps |= NFS_CAP_OWNER;
2025 if (res.attr_bitmask[1] & FATTR4_WORD1_OWNER_GROUP)
2026 server->caps |= NFS_CAP_OWNER_GROUP;
2027 if (res.attr_bitmask[1] & FATTR4_WORD1_TIME_ACCESS)
2028 server->caps |= NFS_CAP_ATIME;
2029 if (res.attr_bitmask[1] & FATTR4_WORD1_TIME_METADATA)
2030 server->caps |= NFS_CAP_CTIME;
2031 if (res.attr_bitmask[1] & FATTR4_WORD1_TIME_MODIFY)
2032 server->caps |= NFS_CAP_MTIME;
2033
2006 memcpy(server->cache_consistency_bitmask, res.attr_bitmask, sizeof(server->cache_consistency_bitmask)); 2034 memcpy(server->cache_consistency_bitmask, res.attr_bitmask, sizeof(server->cache_consistency_bitmask));
2007 server->cache_consistency_bitmask[0] &= FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE; 2035 server->cache_consistency_bitmask[0] &= FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE;
2008 server->cache_consistency_bitmask[1] &= FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 2036 server->cache_consistency_bitmask[1] &= FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 617273e7d47f..cfc30d362f94 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -702,29 +702,12 @@ struct compound_hdr {
702 u32 minorversion; 702 u32 minorversion;
703}; 703};
704 704
705/* 705static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes)
706 * START OF "GENERIC" ENCODE ROUTINES. 706{
707 * These may look a little ugly since they are imported from a "generic" 707 __be32 *p = xdr_reserve_space(xdr, nbytes);
708 * set of XDR encode/decode routines which are intended to be shared by 708 BUG_ON(!p);
709 * all of our NFSv4 implementations (OpenBSD, MacOS X...). 709 return p;
710 * 710}
711 * If the pain of reading these is too great, it should be a straightforward
712 * task to translate them into Linux-specific versions which are more
713 * consistent with the style used in NFSv2/v3...
714 */
715#define WRITE32(n) *p++ = htonl(n)
716#define WRITE64(n) do { \
717 *p++ = htonl((uint32_t)((n) >> 32)); \
718 *p++ = htonl((uint32_t)(n)); \
719} while (0)
720#define WRITEMEM(ptr,nbytes) do { \
721 p = xdr_encode_opaque_fixed(p, ptr, nbytes); \
722} while (0)
723
724#define RESERVE_SPACE(nbytes) do { \
725 p = xdr_reserve_space(xdr, nbytes); \
726 BUG_ON(!p); \
727} while (0)
728 711
729static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 712static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
730{ 713{
@@ -749,12 +732,11 @@ static void encode_compound_hdr(struct xdr_stream *xdr,
749 732
750 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 733 dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag);
751 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 734 BUG_ON(hdr->taglen > NFS4_MAXTAGLEN);
752 RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 735 p = reserve_space(xdr, 4 + hdr->taglen + 8);
753 WRITE32(hdr->taglen); 736 p = xdr_encode_opaque(p, hdr->tag, hdr->taglen);
754 WRITEMEM(hdr->tag, hdr->taglen); 737 *p++ = cpu_to_be32(hdr->minorversion);
755 WRITE32(hdr->minorversion);
756 hdr->nops_p = p; 738 hdr->nops_p = p;
757 WRITE32(hdr->nops); 739 *p = cpu_to_be32(hdr->nops);
758} 740}
759 741
760static void encode_nops(struct compound_hdr *hdr) 742static void encode_nops(struct compound_hdr *hdr)
@@ -829,55 +811,53 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const
829 len += 16; 811 len += 16;
830 else if (iap->ia_valid & ATTR_MTIME) 812 else if (iap->ia_valid & ATTR_MTIME)
831 len += 4; 813 len += 4;
832 RESERVE_SPACE(len); 814 p = reserve_space(xdr, len);
833 815
834 /* 816 /*
835 * We write the bitmap length now, but leave the bitmap and the attribute 817 * We write the bitmap length now, but leave the bitmap and the attribute
836 * buffer length to be backfilled at the end of this routine. 818 * buffer length to be backfilled at the end of this routine.
837 */ 819 */
838 WRITE32(2); 820 *p++ = cpu_to_be32(2);
839 q = p; 821 q = p;
840 p += 3; 822 p += 3;
841 823
842 if (iap->ia_valid & ATTR_SIZE) { 824 if (iap->ia_valid & ATTR_SIZE) {
843 bmval0 |= FATTR4_WORD0_SIZE; 825 bmval0 |= FATTR4_WORD0_SIZE;
844 WRITE64(iap->ia_size); 826 p = xdr_encode_hyper(p, iap->ia_size);
845 } 827 }
846 if (iap->ia_valid & ATTR_MODE) { 828 if (iap->ia_valid & ATTR_MODE) {
847 bmval1 |= FATTR4_WORD1_MODE; 829 bmval1 |= FATTR4_WORD1_MODE;
848 WRITE32(iap->ia_mode & S_IALLUGO); 830 *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
849 } 831 }
850 if (iap->ia_valid & ATTR_UID) { 832 if (iap->ia_valid & ATTR_UID) {
851 bmval1 |= FATTR4_WORD1_OWNER; 833 bmval1 |= FATTR4_WORD1_OWNER;
852 WRITE32(owner_namelen); 834 p = xdr_encode_opaque(p, owner_name, owner_namelen);
853 WRITEMEM(owner_name, owner_namelen);
854 } 835 }
855 if (iap->ia_valid & ATTR_GID) { 836 if (iap->ia_valid & ATTR_GID) {
856 bmval1 |= FATTR4_WORD1_OWNER_GROUP; 837 bmval1 |= FATTR4_WORD1_OWNER_GROUP;
857 WRITE32(owner_grouplen); 838 p = xdr_encode_opaque(p, owner_group, owner_grouplen);
858 WRITEMEM(owner_group, owner_grouplen);
859 } 839 }
860 if (iap->ia_valid & ATTR_ATIME_SET) { 840 if (iap->ia_valid & ATTR_ATIME_SET) {
861 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 841 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
862 WRITE32(NFS4_SET_TO_CLIENT_TIME); 842 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
863 WRITE32(0); 843 *p++ = cpu_to_be32(0);
864 WRITE32(iap->ia_mtime.tv_sec); 844 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
865 WRITE32(iap->ia_mtime.tv_nsec); 845 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
866 } 846 }
867 else if (iap->ia_valid & ATTR_ATIME) { 847 else if (iap->ia_valid & ATTR_ATIME) {
868 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 848 bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
869 WRITE32(NFS4_SET_TO_SERVER_TIME); 849 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
870 } 850 }
871 if (iap->ia_valid & ATTR_MTIME_SET) { 851 if (iap->ia_valid & ATTR_MTIME_SET) {
872 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 852 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
873 WRITE32(NFS4_SET_TO_CLIENT_TIME); 853 *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
874 WRITE32(0); 854 *p++ = cpu_to_be32(0);
875 WRITE32(iap->ia_mtime.tv_sec); 855 *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
876 WRITE32(iap->ia_mtime.tv_nsec); 856 *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
877 } 857 }
878 else if (iap->ia_valid & ATTR_MTIME) { 858 else if (iap->ia_valid & ATTR_MTIME) {
879 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 859 bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
880 WRITE32(NFS4_SET_TO_SERVER_TIME); 860 *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
881 } 861 }
882 862
883 /* 863 /*
@@ -891,7 +871,7 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const
891 len = (char *)p - (char *)q - 12; 871 len = (char *)p - (char *)q - 12;
892 *q++ = htonl(bmval0); 872 *q++ = htonl(bmval0);
893 *q++ = htonl(bmval1); 873 *q++ = htonl(bmval1);
894 *q++ = htonl(len); 874 *q = htonl(len);
895 875
896/* out: */ 876/* out: */
897} 877}
@@ -900,9 +880,9 @@ static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hd
900{ 880{
901 __be32 *p; 881 __be32 *p;
902 882
903 RESERVE_SPACE(8); 883 p = reserve_space(xdr, 8);
904 WRITE32(OP_ACCESS); 884 *p++ = cpu_to_be32(OP_ACCESS);
905 WRITE32(access); 885 *p = cpu_to_be32(access);
906 hdr->nops++; 886 hdr->nops++;
907 hdr->replen += decode_access_maxsz; 887 hdr->replen += decode_access_maxsz;
908} 888}
@@ -911,10 +891,10 @@ static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg
911{ 891{
912 __be32 *p; 892 __be32 *p;
913 893
914 RESERVE_SPACE(8+NFS4_STATEID_SIZE); 894 p = reserve_space(xdr, 8+NFS4_STATEID_SIZE);
915 WRITE32(OP_CLOSE); 895 *p++ = cpu_to_be32(OP_CLOSE);
916 WRITE32(arg->seqid->sequence->counter); 896 *p++ = cpu_to_be32(arg->seqid->sequence->counter);
917 WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 897 xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
918 hdr->nops++; 898 hdr->nops++;
919 hdr->replen += decode_close_maxsz; 899 hdr->replen += decode_close_maxsz;
920} 900}
@@ -923,10 +903,10 @@ static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *ar
923{ 903{
924 __be32 *p; 904 __be32 *p;
925 905
926 RESERVE_SPACE(16); 906 p = reserve_space(xdr, 16);
927 WRITE32(OP_COMMIT); 907 *p++ = cpu_to_be32(OP_COMMIT);
928 WRITE64(args->offset); 908 p = xdr_encode_hyper(p, args->offset);
929 WRITE32(args->count); 909 *p = cpu_to_be32(args->count);
930 hdr->nops++; 910 hdr->nops++;
931 hdr->replen += decode_commit_maxsz; 911 hdr->replen += decode_commit_maxsz;
932} 912}
@@ -935,30 +915,28 @@ static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *
935{ 915{
936 __be32 *p; 916 __be32 *p;
937 917
938 RESERVE_SPACE(8); 918 p = reserve_space(xdr, 8);
939 WRITE32(OP_CREATE); 919 *p++ = cpu_to_be32(OP_CREATE);
940 WRITE32(create->ftype); 920 *p = cpu_to_be32(create->ftype);
941 921
942 switch (create->ftype) { 922 switch (create->ftype) {
943 case NF4LNK: 923 case NF4LNK:
944 RESERVE_SPACE(4); 924 p = reserve_space(xdr, 4);
945 WRITE32(create->u.symlink.len); 925 *p = cpu_to_be32(create->u.symlink.len);
946 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 926 xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
947 break; 927 break;
948 928
949 case NF4BLK: case NF4CHR: 929 case NF4BLK: case NF4CHR:
950 RESERVE_SPACE(8); 930 p = reserve_space(xdr, 8);
951 WRITE32(create->u.device.specdata1); 931 *p++ = cpu_to_be32(create->u.device.specdata1);
952 WRITE32(create->u.device.specdata2); 932 *p = cpu_to_be32(create->u.device.specdata2);
953 break; 933 break;
954 934
955 default: 935 default:
956 break; 936 break;
957 } 937 }
958 938
959 RESERVE_SPACE(4 + create->name->len); 939 encode_string(xdr, create->name->len, create->name->name);
960 WRITE32(create->name->len);
961 WRITEMEM(create->name->name, create->name->len);
962 hdr->nops++; 940 hdr->nops++;
963 hdr->replen += decode_create_maxsz; 941 hdr->replen += decode_create_maxsz;
964 942
@@ -969,10 +947,10 @@ static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct c
969{ 947{
970 __be32 *p; 948 __be32 *p;
971 949
972 RESERVE_SPACE(12); 950 p = reserve_space(xdr, 12);
973 WRITE32(OP_GETATTR); 951 *p++ = cpu_to_be32(OP_GETATTR);
974 WRITE32(1); 952 *p++ = cpu_to_be32(1);
975 WRITE32(bitmap); 953 *p = cpu_to_be32(bitmap);
976 hdr->nops++; 954 hdr->nops++;
977 hdr->replen += decode_getattr_maxsz; 955 hdr->replen += decode_getattr_maxsz;
978} 956}
@@ -981,11 +959,11 @@ static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm
981{ 959{
982 __be32 *p; 960 __be32 *p;
983 961
984 RESERVE_SPACE(16); 962 p = reserve_space(xdr, 16);
985 WRITE32(OP_GETATTR); 963 *p++ = cpu_to_be32(OP_GETATTR);
986 WRITE32(2); 964 *p++ = cpu_to_be32(2);
987 WRITE32(bm0); 965 *p++ = cpu_to_be32(bm0);
988 WRITE32(bm1); 966 *p = cpu_to_be32(bm1);
989 hdr->nops++; 967 hdr->nops++;
990 hdr->replen += decode_getattr_maxsz; 968 hdr->replen += decode_getattr_maxsz;
991} 969}
@@ -1012,8 +990,8 @@ static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1012{ 990{
1013 __be32 *p; 991 __be32 *p;
1014 992
1015 RESERVE_SPACE(4); 993 p = reserve_space(xdr, 4);
1016 WRITE32(OP_GETFH); 994 *p = cpu_to_be32(OP_GETFH);
1017 hdr->nops++; 995 hdr->nops++;
1018 hdr->replen += decode_getfh_maxsz; 996 hdr->replen += decode_getfh_maxsz;
1019} 997}
@@ -1022,10 +1000,9 @@ static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct
1022{ 1000{
1023 __be32 *p; 1001 __be32 *p;
1024 1002
1025 RESERVE_SPACE(8 + name->len); 1003 p = reserve_space(xdr, 8 + name->len);
1026 WRITE32(OP_LINK); 1004 *p++ = cpu_to_be32(OP_LINK);
1027 WRITE32(name->len); 1005 xdr_encode_opaque(p, name->name, name->len);
1028 WRITEMEM(name->name, name->len);
1029 hdr->nops++; 1006 hdr->nops++;
1030 hdr->replen += decode_link_maxsz; 1007 hdr->replen += decode_link_maxsz;
1031} 1008}
@@ -1052,27 +1029,27 @@ static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args
1052{ 1029{
1053 __be32 *p; 1030 __be32 *p;
1054 1031
1055 RESERVE_SPACE(32); 1032 p = reserve_space(xdr, 32);
1056 WRITE32(OP_LOCK); 1033 *p++ = cpu_to_be32(OP_LOCK);
1057 WRITE32(nfs4_lock_type(args->fl, args->block)); 1034 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block));
1058 WRITE32(args->reclaim); 1035 *p++ = cpu_to_be32(args->reclaim);
1059 WRITE64(args->fl->fl_start); 1036 p = xdr_encode_hyper(p, args->fl->fl_start);
1060 WRITE64(nfs4_lock_length(args->fl)); 1037 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1061 WRITE32(args->new_lock_owner); 1038 *p = cpu_to_be32(args->new_lock_owner);
1062 if (args->new_lock_owner){ 1039 if (args->new_lock_owner){
1063 RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); 1040 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32);
1064 WRITE32(args->open_seqid->sequence->counter); 1041 *p++ = cpu_to_be32(args->open_seqid->sequence->counter);
1065 WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); 1042 p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
1066 WRITE32(args->lock_seqid->sequence->counter); 1043 *p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
1067 WRITE64(args->lock_owner.clientid); 1044 p = xdr_encode_hyper(p, args->lock_owner.clientid);
1068 WRITE32(16); 1045 *p++ = cpu_to_be32(16);
1069 WRITEMEM("lock id:", 8); 1046 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
1070 WRITE64(args->lock_owner.id); 1047 xdr_encode_hyper(p, args->lock_owner.id);
1071 } 1048 }
1072 else { 1049 else {
1073 RESERVE_SPACE(NFS4_STATEID_SIZE+4); 1050 p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
1074 WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); 1051 p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE);
1075 WRITE32(args->lock_seqid->sequence->counter); 1052 *p = cpu_to_be32(args->lock_seqid->sequence->counter);
1076 } 1053 }
1077 hdr->nops++; 1054 hdr->nops++;
1078 hdr->replen += decode_lock_maxsz; 1055 hdr->replen += decode_lock_maxsz;
@@ -1082,15 +1059,15 @@ static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *ar
1082{ 1059{
1083 __be32 *p; 1060 __be32 *p;
1084 1061
1085 RESERVE_SPACE(52); 1062 p = reserve_space(xdr, 52);
1086 WRITE32(OP_LOCKT); 1063 *p++ = cpu_to_be32(OP_LOCKT);
1087 WRITE32(nfs4_lock_type(args->fl, 0)); 1064 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1088 WRITE64(args->fl->fl_start); 1065 p = xdr_encode_hyper(p, args->fl->fl_start);
1089 WRITE64(nfs4_lock_length(args->fl)); 1066 p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1090 WRITE64(args->lock_owner.clientid); 1067 p = xdr_encode_hyper(p, args->lock_owner.clientid);
1091 WRITE32(16); 1068 *p++ = cpu_to_be32(16);
1092 WRITEMEM("lock id:", 8); 1069 p = xdr_encode_opaque_fixed(p, "lock id:", 8);
1093 WRITE64(args->lock_owner.id); 1070 xdr_encode_hyper(p, args->lock_owner.id);
1094 hdr->nops++; 1071 hdr->nops++;
1095 hdr->replen += decode_lockt_maxsz; 1072 hdr->replen += decode_lockt_maxsz;
1096} 1073}
@@ -1099,13 +1076,13 @@ static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *ar
1099{ 1076{
1100 __be32 *p; 1077 __be32 *p;
1101 1078
1102 RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); 1079 p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16);
1103 WRITE32(OP_LOCKU); 1080 *p++ = cpu_to_be32(OP_LOCKU);
1104 WRITE32(nfs4_lock_type(args->fl, 0)); 1081 *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
1105 WRITE32(args->seqid->sequence->counter); 1082 *p++ = cpu_to_be32(args->seqid->sequence->counter);
1106 WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); 1083 p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE);
1107 WRITE64(args->fl->fl_start); 1084 p = xdr_encode_hyper(p, args->fl->fl_start);
1108 WRITE64(nfs4_lock_length(args->fl)); 1085 xdr_encode_hyper(p, nfs4_lock_length(args->fl));
1109 hdr->nops++; 1086 hdr->nops++;
1110 hdr->replen += decode_locku_maxsz; 1087 hdr->replen += decode_locku_maxsz;
1111} 1088}
@@ -1115,10 +1092,9 @@ static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struc
1115 int len = name->len; 1092 int len = name->len;
1116 __be32 *p; 1093 __be32 *p;
1117 1094
1118 RESERVE_SPACE(8 + len); 1095 p = reserve_space(xdr, 8 + len);
1119 WRITE32(OP_LOOKUP); 1096 *p++ = cpu_to_be32(OP_LOOKUP);
1120 WRITE32(len); 1097 xdr_encode_opaque(p, name->name, len);
1121 WRITEMEM(name->name, len);
1122 hdr->nops++; 1098 hdr->nops++;
1123 hdr->replen += decode_lookup_maxsz; 1099 hdr->replen += decode_lookup_maxsz;
1124} 1100}
@@ -1127,21 +1103,21 @@ static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
1127{ 1103{
1128 __be32 *p; 1104 __be32 *p;
1129 1105
1130 RESERVE_SPACE(8); 1106 p = reserve_space(xdr, 8);
1131 switch (fmode & (FMODE_READ|FMODE_WRITE)) { 1107 switch (fmode & (FMODE_READ|FMODE_WRITE)) {
1132 case FMODE_READ: 1108 case FMODE_READ:
1133 WRITE32(NFS4_SHARE_ACCESS_READ); 1109 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ);
1134 break; 1110 break;
1135 case FMODE_WRITE: 1111 case FMODE_WRITE:
1136 WRITE32(NFS4_SHARE_ACCESS_WRITE); 1112 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE);
1137 break; 1113 break;
1138 case FMODE_READ|FMODE_WRITE: 1114 case FMODE_READ|FMODE_WRITE:
1139 WRITE32(NFS4_SHARE_ACCESS_BOTH); 1115 *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH);
1140 break; 1116 break;
1141 default: 1117 default:
1142 WRITE32(0); 1118 *p++ = cpu_to_be32(0);
1143 } 1119 }
1144 WRITE32(0); /* for linux, share_deny = 0 always */ 1120 *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */
1145} 1121}
1146 1122
1147static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 1123static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
@@ -1151,29 +1127,29 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena
1151 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 1127 * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
1152 * owner 4 = 32 1128 * owner 4 = 32
1153 */ 1129 */
1154 RESERVE_SPACE(8); 1130 p = reserve_space(xdr, 8);
1155 WRITE32(OP_OPEN); 1131 *p++ = cpu_to_be32(OP_OPEN);
1156 WRITE32(arg->seqid->sequence->counter); 1132 *p = cpu_to_be32(arg->seqid->sequence->counter);
1157 encode_share_access(xdr, arg->fmode); 1133 encode_share_access(xdr, arg->fmode);
1158 RESERVE_SPACE(28); 1134 p = reserve_space(xdr, 28);
1159 WRITE64(arg->clientid); 1135 p = xdr_encode_hyper(p, arg->clientid);
1160 WRITE32(16); 1136 *p++ = cpu_to_be32(16);
1161 WRITEMEM("open id:", 8); 1137 p = xdr_encode_opaque_fixed(p, "open id:", 8);
1162 WRITE64(arg->id); 1138 xdr_encode_hyper(p, arg->id);
1163} 1139}
1164 1140
1165static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 1141static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
1166{ 1142{
1167 __be32 *p; 1143 __be32 *p;
1168 1144
1169 RESERVE_SPACE(4); 1145 p = reserve_space(xdr, 4);
1170 switch(arg->open_flags & O_EXCL) { 1146 switch(arg->open_flags & O_EXCL) {
1171 case 0: 1147 case 0:
1172 WRITE32(NFS4_CREATE_UNCHECKED); 1148 *p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
1173 encode_attrs(xdr, arg->u.attrs, arg->server); 1149 encode_attrs(xdr, arg->u.attrs, arg->server);
1174 break; 1150 break;
1175 default: 1151 default:
1176 WRITE32(NFS4_CREATE_EXCLUSIVE); 1152 *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
1177 encode_nfs4_verifier(xdr, &arg->u.verifier); 1153 encode_nfs4_verifier(xdr, &arg->u.verifier);
1178 } 1154 }
1179} 1155}
@@ -1182,14 +1158,14 @@ static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *a
1182{ 1158{
1183 __be32 *p; 1159 __be32 *p;
1184 1160
1185 RESERVE_SPACE(4); 1161 p = reserve_space(xdr, 4);
1186 switch (arg->open_flags & O_CREAT) { 1162 switch (arg->open_flags & O_CREAT) {
1187 case 0: 1163 case 0:
1188 WRITE32(NFS4_OPEN_NOCREATE); 1164 *p = cpu_to_be32(NFS4_OPEN_NOCREATE);
1189 break; 1165 break;
1190 default: 1166 default:
1191 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 1167 BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
1192 WRITE32(NFS4_OPEN_CREATE); 1168 *p = cpu_to_be32(NFS4_OPEN_CREATE);
1193 encode_createmode(xdr, arg); 1169 encode_createmode(xdr, arg);
1194 } 1170 }
1195} 1171}
@@ -1198,16 +1174,16 @@ static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delega
1198{ 1174{
1199 __be32 *p; 1175 __be32 *p;
1200 1176
1201 RESERVE_SPACE(4); 1177 p = reserve_space(xdr, 4);
1202 switch (delegation_type) { 1178 switch (delegation_type) {
1203 case 0: 1179 case 0:
1204 WRITE32(NFS4_OPEN_DELEGATE_NONE); 1180 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE);
1205 break; 1181 break;
1206 case FMODE_READ: 1182 case FMODE_READ:
1207 WRITE32(NFS4_OPEN_DELEGATE_READ); 1183 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ);
1208 break; 1184 break;
1209 case FMODE_WRITE|FMODE_READ: 1185 case FMODE_WRITE|FMODE_READ:
1210 WRITE32(NFS4_OPEN_DELEGATE_WRITE); 1186 *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE);
1211 break; 1187 break;
1212 default: 1188 default:
1213 BUG(); 1189 BUG();
@@ -1218,8 +1194,8 @@ static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *
1218{ 1194{
1219 __be32 *p; 1195 __be32 *p;
1220 1196
1221 RESERVE_SPACE(4); 1197 p = reserve_space(xdr, 4);
1222 WRITE32(NFS4_OPEN_CLAIM_NULL); 1198 *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL);
1223 encode_string(xdr, name->len, name->name); 1199 encode_string(xdr, name->len, name->name);
1224} 1200}
1225 1201
@@ -1227,8 +1203,8 @@ static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
1227{ 1203{
1228 __be32 *p; 1204 __be32 *p;
1229 1205
1230 RESERVE_SPACE(4); 1206 p = reserve_space(xdr, 4);
1231 WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 1207 *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS);
1232 encode_delegation_type(xdr, type); 1208 encode_delegation_type(xdr, type);
1233} 1209}
1234 1210
@@ -1236,9 +1212,9 @@ static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struc
1236{ 1212{
1237 __be32 *p; 1213 __be32 *p;
1238 1214
1239 RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1215 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1240 WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1216 *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
1241 WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 1217 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
1242 encode_string(xdr, name->len, name->name); 1218 encode_string(xdr, name->len, name->name);
1243} 1219}
1244 1220
@@ -1267,10 +1243,10 @@ static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_co
1267{ 1243{
1268 __be32 *p; 1244 __be32 *p;
1269 1245
1270 RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 1246 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1271 WRITE32(OP_OPEN_CONFIRM); 1247 *p++ = cpu_to_be32(OP_OPEN_CONFIRM);
1272 WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1248 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1273 WRITE32(arg->seqid->sequence->counter); 1249 *p = cpu_to_be32(arg->seqid->sequence->counter);
1274 hdr->nops++; 1250 hdr->nops++;
1275 hdr->replen += decode_open_confirm_maxsz; 1251 hdr->replen += decode_open_confirm_maxsz;
1276} 1252}
@@ -1279,10 +1255,10 @@ static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_close
1279{ 1255{
1280 __be32 *p; 1256 __be32 *p;
1281 1257
1282 RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 1258 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
1283 WRITE32(OP_OPEN_DOWNGRADE); 1259 *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE);
1284 WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1260 p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE);
1285 WRITE32(arg->seqid->sequence->counter); 1261 *p = cpu_to_be32(arg->seqid->sequence->counter);
1286 encode_share_access(xdr, arg->fmode); 1262 encode_share_access(xdr, arg->fmode);
1287 hdr->nops++; 1263 hdr->nops++;
1288 hdr->replen += decode_open_downgrade_maxsz; 1264 hdr->replen += decode_open_downgrade_maxsz;
@@ -1294,10 +1270,9 @@ encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hd
1294 int len = fh->size; 1270 int len = fh->size;
1295 __be32 *p; 1271 __be32 *p;
1296 1272
1297 RESERVE_SPACE(8 + len); 1273 p = reserve_space(xdr, 8 + len);
1298 WRITE32(OP_PUTFH); 1274 *p++ = cpu_to_be32(OP_PUTFH);
1299 WRITE32(len); 1275 xdr_encode_opaque(p, fh->data, len);
1300 WRITEMEM(fh->data, len);
1301 hdr->nops++; 1276 hdr->nops++;
1302 hdr->replen += decode_putfh_maxsz; 1277 hdr->replen += decode_putfh_maxsz;
1303} 1278}
@@ -1306,8 +1281,8 @@ static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1306{ 1281{
1307 __be32 *p; 1282 __be32 *p;
1308 1283
1309 RESERVE_SPACE(4); 1284 p = reserve_space(xdr, 4);
1310 WRITE32(OP_PUTROOTFH); 1285 *p = cpu_to_be32(OP_PUTROOTFH);
1311 hdr->nops++; 1286 hdr->nops++;
1312 hdr->replen += decode_putrootfh_maxsz; 1287 hdr->replen += decode_putrootfh_maxsz;
1313} 1288}
@@ -1317,26 +1292,26 @@ static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context
1317 nfs4_stateid stateid; 1292 nfs4_stateid stateid;
1318 __be32 *p; 1293 __be32 *p;
1319 1294
1320 RESERVE_SPACE(NFS4_STATEID_SIZE); 1295 p = reserve_space(xdr, NFS4_STATEID_SIZE);
1321 if (ctx->state != NULL) { 1296 if (ctx->state != NULL) {
1322 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 1297 nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
1323 WRITEMEM(stateid.data, NFS4_STATEID_SIZE); 1298 xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
1324 } else 1299 } else
1325 WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 1300 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
1326} 1301}
1327 1302
1328static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 1303static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
1329{ 1304{
1330 __be32 *p; 1305 __be32 *p;
1331 1306
1332 RESERVE_SPACE(4); 1307 p = reserve_space(xdr, 4);
1333 WRITE32(OP_READ); 1308 *p = cpu_to_be32(OP_READ);
1334 1309
1335 encode_stateid(xdr, args->context); 1310 encode_stateid(xdr, args->context);
1336 1311
1337 RESERVE_SPACE(12); 1312 p = reserve_space(xdr, 12);
1338 WRITE64(args->offset); 1313 p = xdr_encode_hyper(p, args->offset);
1339 WRITE32(args->count); 1314 *p = cpu_to_be32(args->count);
1340 hdr->nops++; 1315 hdr->nops++;
1341 hdr->replen += decode_read_maxsz; 1316 hdr->replen += decode_read_maxsz;
1342} 1317}
@@ -1349,20 +1324,20 @@ static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
1349 }; 1324 };
1350 __be32 *p; 1325 __be32 *p;
1351 1326
1352 RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); 1327 p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20);
1353 WRITE32(OP_READDIR); 1328 *p++ = cpu_to_be32(OP_READDIR);
1354 WRITE64(readdir->cookie); 1329 p = xdr_encode_hyper(p, readdir->cookie);
1355 WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); 1330 p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE);
1356 WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 1331 *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */
1357 WRITE32(readdir->count); 1332 *p++ = cpu_to_be32(readdir->count);
1358 WRITE32(2); 1333 *p++ = cpu_to_be32(2);
1359 /* Switch to mounted_on_fileid if the server supports it */ 1334 /* Switch to mounted_on_fileid if the server supports it */
1360 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 1335 if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)
1361 attrs[0] &= ~FATTR4_WORD0_FILEID; 1336 attrs[0] &= ~FATTR4_WORD0_FILEID;
1362 else 1337 else
1363 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 1338 attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
1364 WRITE32(attrs[0] & readdir->bitmask[0]); 1339 *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
1365 WRITE32(attrs[1] & readdir->bitmask[1]); 1340 *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
1366 hdr->nops++; 1341 hdr->nops++;
1367 hdr->replen += decode_readdir_maxsz; 1342 hdr->replen += decode_readdir_maxsz;
1368 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 1343 dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
@@ -1378,8 +1353,8 @@ static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *
1378{ 1353{
1379 __be32 *p; 1354 __be32 *p;
1380 1355
1381 RESERVE_SPACE(4); 1356 p = reserve_space(xdr, 4);
1382 WRITE32(OP_READLINK); 1357 *p = cpu_to_be32(OP_READLINK);
1383 hdr->nops++; 1358 hdr->nops++;
1384 hdr->replen += decode_readlink_maxsz; 1359 hdr->replen += decode_readlink_maxsz;
1385} 1360}
@@ -1388,10 +1363,9 @@ static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struc
1388{ 1363{
1389 __be32 *p; 1364 __be32 *p;
1390 1365
1391 RESERVE_SPACE(8 + name->len); 1366 p = reserve_space(xdr, 8 + name->len);
1392 WRITE32(OP_REMOVE); 1367 *p++ = cpu_to_be32(OP_REMOVE);
1393 WRITE32(name->len); 1368 xdr_encode_opaque(p, name->name, name->len);
1394 WRITEMEM(name->name, name->len);
1395 hdr->nops++; 1369 hdr->nops++;
1396 hdr->replen += decode_remove_maxsz; 1370 hdr->replen += decode_remove_maxsz;
1397} 1371}
@@ -1400,14 +1374,10 @@ static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, co
1400{ 1374{
1401 __be32 *p; 1375 __be32 *p;
1402 1376
1403 RESERVE_SPACE(8 + oldname->len); 1377 p = reserve_space(xdr, 4);
1404 WRITE32(OP_RENAME); 1378 *p = cpu_to_be32(OP_RENAME);
1405 WRITE32(oldname->len); 1379 encode_string(xdr, oldname->len, oldname->name);
1406 WRITEMEM(oldname->name, oldname->len); 1380 encode_string(xdr, newname->len, newname->name);
1407
1408 RESERVE_SPACE(4 + newname->len);
1409 WRITE32(newname->len);
1410 WRITEMEM(newname->name, newname->len);
1411 hdr->nops++; 1381 hdr->nops++;
1412 hdr->replen += decode_rename_maxsz; 1382 hdr->replen += decode_rename_maxsz;
1413} 1383}
@@ -1416,9 +1386,9 @@ static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client
1416{ 1386{
1417 __be32 *p; 1387 __be32 *p;
1418 1388
1419 RESERVE_SPACE(12); 1389 p = reserve_space(xdr, 12);
1420 WRITE32(OP_RENEW); 1390 *p++ = cpu_to_be32(OP_RENEW);
1421 WRITE64(client_stateid->cl_clientid); 1391 xdr_encode_hyper(p, client_stateid->cl_clientid);
1422 hdr->nops++; 1392 hdr->nops++;
1423 hdr->replen += decode_renew_maxsz; 1393 hdr->replen += decode_renew_maxsz;
1424} 1394}
@@ -1428,8 +1398,8 @@ encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1428{ 1398{
1429 __be32 *p; 1399 __be32 *p;
1430 1400
1431 RESERVE_SPACE(4); 1401 p = reserve_space(xdr, 4);
1432 WRITE32(OP_RESTOREFH); 1402 *p = cpu_to_be32(OP_RESTOREFH);
1433 hdr->nops++; 1403 hdr->nops++;
1434 hdr->replen += decode_restorefh_maxsz; 1404 hdr->replen += decode_restorefh_maxsz;
1435} 1405}
@@ -1439,16 +1409,16 @@ encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compoun
1439{ 1409{
1440 __be32 *p; 1410 __be32 *p;
1441 1411
1442 RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1412 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1443 WRITE32(OP_SETATTR); 1413 *p++ = cpu_to_be32(OP_SETATTR);
1444 WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 1414 xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
1445 RESERVE_SPACE(2*4); 1415 p = reserve_space(xdr, 2*4);
1446 WRITE32(1); 1416 *p++ = cpu_to_be32(1);
1447 WRITE32(FATTR4_WORD0_ACL); 1417 *p = cpu_to_be32(FATTR4_WORD0_ACL);
1448 if (arg->acl_len % 4) 1418 if (arg->acl_len % 4)
1449 return -EINVAL; 1419 return -EINVAL;
1450 RESERVE_SPACE(4); 1420 p = reserve_space(xdr, 4);
1451 WRITE32(arg->acl_len); 1421 *p = cpu_to_be32(arg->acl_len);
1452 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1422 xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
1453 hdr->nops++; 1423 hdr->nops++;
1454 hdr->replen += decode_setacl_maxsz; 1424 hdr->replen += decode_setacl_maxsz;
@@ -1460,8 +1430,8 @@ encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
1460{ 1430{
1461 __be32 *p; 1431 __be32 *p;
1462 1432
1463 RESERVE_SPACE(4); 1433 p = reserve_space(xdr, 4);
1464 WRITE32(OP_SAVEFH); 1434 *p = cpu_to_be32(OP_SAVEFH);
1465 hdr->nops++; 1435 hdr->nops++;
1466 hdr->replen += decode_savefh_maxsz; 1436 hdr->replen += decode_savefh_maxsz;
1467} 1437}
@@ -1470,9 +1440,9 @@ static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs
1470{ 1440{
1471 __be32 *p; 1441 __be32 *p;
1472 1442
1473 RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1443 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1474 WRITE32(OP_SETATTR); 1444 *p++ = cpu_to_be32(OP_SETATTR);
1475 WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); 1445 xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE);
1476 hdr->nops++; 1446 hdr->nops++;
1477 hdr->replen += decode_setattr_maxsz; 1447 hdr->replen += decode_setattr_maxsz;
1478 encode_attrs(xdr, arg->iap, server); 1448 encode_attrs(xdr, arg->iap, server);
@@ -1482,17 +1452,17 @@ static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclie
1482{ 1452{
1483 __be32 *p; 1453 __be32 *p;
1484 1454
1485 RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); 1455 p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE);
1486 WRITE32(OP_SETCLIENTID); 1456 *p++ = cpu_to_be32(OP_SETCLIENTID);
1487 WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 1457 xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE);
1488 1458
1489 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 1459 encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
1490 RESERVE_SPACE(4); 1460 p = reserve_space(xdr, 4);
1491 WRITE32(setclientid->sc_prog); 1461 *p = cpu_to_be32(setclientid->sc_prog);
1492 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 1462 encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
1493 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 1463 encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
1494 RESERVE_SPACE(4); 1464 p = reserve_space(xdr, 4);
1495 WRITE32(setclientid->sc_cb_ident); 1465 *p = cpu_to_be32(setclientid->sc_cb_ident);
1496 hdr->nops++; 1466 hdr->nops++;
1497 hdr->replen += decode_setclientid_maxsz; 1467 hdr->replen += decode_setclientid_maxsz;
1498} 1468}
@@ -1501,10 +1471,10 @@ static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_
1501{ 1471{
1502 __be32 *p; 1472 __be32 *p;
1503 1473
1504 RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); 1474 p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE);
1505 WRITE32(OP_SETCLIENTID_CONFIRM); 1475 *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM);
1506 WRITE64(client_state->cl_clientid); 1476 p = xdr_encode_hyper(p, client_state->cl_clientid);
1507 WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 1477 xdr_encode_opaque_fixed(p, client_state->cl_confirm.data, NFS4_VERIFIER_SIZE);
1508 hdr->nops++; 1478 hdr->nops++;
1509 hdr->replen += decode_setclientid_confirm_maxsz; 1479 hdr->replen += decode_setclientid_confirm_maxsz;
1510} 1480}
@@ -1513,15 +1483,15 @@ static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *arg
1513{ 1483{
1514 __be32 *p; 1484 __be32 *p;
1515 1485
1516 RESERVE_SPACE(4); 1486 p = reserve_space(xdr, 4);
1517 WRITE32(OP_WRITE); 1487 *p = cpu_to_be32(OP_WRITE);
1518 1488
1519 encode_stateid(xdr, args->context); 1489 encode_stateid(xdr, args->context);
1520 1490
1521 RESERVE_SPACE(16); 1491 p = reserve_space(xdr, 16);
1522 WRITE64(args->offset); 1492 p = xdr_encode_hyper(p, args->offset);
1523 WRITE32(args->stable); 1493 *p++ = cpu_to_be32(args->stable);
1524 WRITE32(args->count); 1494 *p = cpu_to_be32(args->count);
1525 1495
1526 xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1496 xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
1527 hdr->nops++; 1497 hdr->nops++;
@@ -1532,10 +1502,10 @@ static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *state
1532{ 1502{
1533 __be32 *p; 1503 __be32 *p;
1534 1504
1535 RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1505 p = reserve_space(xdr, 4+NFS4_STATEID_SIZE);
1536 1506
1537 WRITE32(OP_DELEGRETURN); 1507 *p++ = cpu_to_be32(OP_DELEGRETURN);
1538 WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 1508 xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE);
1539 hdr->nops++; 1509 hdr->nops++;
1540 hdr->replen += decode_delegreturn_maxsz; 1510 hdr->replen += decode_delegreturn_maxsz;
1541} 1511}
@@ -1548,16 +1518,16 @@ static void encode_exchange_id(struct xdr_stream *xdr,
1548{ 1518{
1549 __be32 *p; 1519 __be32 *p;
1550 1520
1551 RESERVE_SPACE(4 + sizeof(args->verifier->data)); 1521 p = reserve_space(xdr, 4 + sizeof(args->verifier->data));
1552 WRITE32(OP_EXCHANGE_ID); 1522 *p++ = cpu_to_be32(OP_EXCHANGE_ID);
1553 WRITEMEM(args->verifier->data, sizeof(args->verifier->data)); 1523 xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data));
1554 1524
1555 encode_string(xdr, args->id_len, args->id); 1525 encode_string(xdr, args->id_len, args->id);
1556 1526
1557 RESERVE_SPACE(12); 1527 p = reserve_space(xdr, 12);
1558 WRITE32(args->flags); 1528 *p++ = cpu_to_be32(args->flags);
1559 WRITE32(0); /* zero length state_protect4_a */ 1529 *p++ = cpu_to_be32(0); /* zero length state_protect4_a */
1560 WRITE32(0); /* zero length implementation id array */ 1530 *p = cpu_to_be32(0); /* zero length implementation id array */
1561 hdr->nops++; 1531 hdr->nops++;
1562 hdr->replen += decode_exchange_id_maxsz; 1532 hdr->replen += decode_exchange_id_maxsz;
1563} 1533}
@@ -1571,55 +1541,43 @@ static void encode_create_session(struct xdr_stream *xdr,
1571 uint32_t len; 1541 uint32_t len;
1572 struct nfs_client *clp = args->client; 1542 struct nfs_client *clp = args->client;
1573 1543
1574 RESERVE_SPACE(4); 1544 len = scnprintf(machine_name, sizeof(machine_name), "%s",
1575 WRITE32(OP_CREATE_SESSION); 1545 clp->cl_ipaddr);
1576
1577 RESERVE_SPACE(8);
1578 WRITE64(clp->cl_ex_clid);
1579 1546
1580 RESERVE_SPACE(8); 1547 p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12);
1581 WRITE32(clp->cl_seqid); /*Sequence id */ 1548 *p++ = cpu_to_be32(OP_CREATE_SESSION);
1582 WRITE32(args->flags); /*flags */ 1549 p = xdr_encode_hyper(p, clp->cl_ex_clid);
1550 *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */
1551 *p++ = cpu_to_be32(args->flags); /*flags */
1583 1552
1584 RESERVE_SPACE(2*28); /* 2 channel_attrs */
1585 /* Fore Channel */ 1553 /* Fore Channel */
1586 WRITE32(args->fc_attrs.headerpadsz); /* header padding size */ 1554 *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */
1587 WRITE32(args->fc_attrs.max_rqst_sz); /* max req size */ 1555 *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */
1588 WRITE32(args->fc_attrs.max_resp_sz); /* max resp size */ 1556 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */
1589 WRITE32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1557 *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1590 WRITE32(args->fc_attrs.max_ops); /* max operations */ 1558 *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */
1591 WRITE32(args->fc_attrs.max_reqs); /* max requests */ 1559 *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */
1592 WRITE32(0); /* rdmachannel_attrs */ 1560 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1593 1561
1594 /* Back Channel */ 1562 /* Back Channel */
1595 WRITE32(args->fc_attrs.headerpadsz); /* header padding size */ 1563 *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */
1596 WRITE32(args->bc_attrs.max_rqst_sz); /* max req size */ 1564 *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */
1597 WRITE32(args->bc_attrs.max_resp_sz); /* max resp size */ 1565 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */
1598 WRITE32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1566 *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */
1599 WRITE32(args->bc_attrs.max_ops); /* max operations */ 1567 *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */
1600 WRITE32(args->bc_attrs.max_reqs); /* max requests */ 1568 *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */
1601 WRITE32(0); /* rdmachannel_attrs */ 1569 *p++ = cpu_to_be32(0); /* rdmachannel_attrs */
1602 1570
1603 RESERVE_SPACE(4); 1571 *p++ = cpu_to_be32(args->cb_program); /* cb_program */
1604 WRITE32(args->cb_program); /* cb_program */ 1572 *p++ = cpu_to_be32(1);
1605 1573 *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */
1606 RESERVE_SPACE(4); /* # of security flavors */
1607 WRITE32(1);
1608
1609 RESERVE_SPACE(4);
1610 WRITE32(RPC_AUTH_UNIX); /* auth_sys */
1611 1574
1612 /* authsys_parms rfc1831 */ 1575 /* authsys_parms rfc1831 */
1613 RESERVE_SPACE(4); 1576 *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */
1614 WRITE32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1577 p = xdr_encode_opaque(p, machine_name, len);
1615 len = scnprintf(machine_name, sizeof(machine_name), "%s", 1578 *p++ = cpu_to_be32(0); /* UID */
1616 clp->cl_ipaddr); 1579 *p++ = cpu_to_be32(0); /* GID */
1617 RESERVE_SPACE(16 + len); 1580 *p = cpu_to_be32(0); /* No more gids */
1618 WRITE32(len);
1619 WRITEMEM(machine_name, len);
1620 WRITE32(0); /* UID */
1621 WRITE32(0); /* GID */
1622 WRITE32(0); /* No more gids */
1623 hdr->nops++; 1581 hdr->nops++;
1624 hdr->replen += decode_create_session_maxsz; 1582 hdr->replen += decode_create_session_maxsz;
1625} 1583}
@@ -1629,9 +1587,9 @@ static void encode_destroy_session(struct xdr_stream *xdr,
1629 struct compound_hdr *hdr) 1587 struct compound_hdr *hdr)
1630{ 1588{
1631 __be32 *p; 1589 __be32 *p;
1632 RESERVE_SPACE(4 + NFS4_MAX_SESSIONID_LEN); 1590 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN);
1633 WRITE32(OP_DESTROY_SESSION); 1591 *p++ = cpu_to_be32(OP_DESTROY_SESSION);
1634 WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1592 xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1635 hdr->nops++; 1593 hdr->nops++;
1636 hdr->replen += decode_destroy_session_maxsz; 1594 hdr->replen += decode_destroy_session_maxsz;
1637} 1595}
@@ -1655,8 +1613,8 @@ static void encode_sequence(struct xdr_stream *xdr,
1655 WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1613 WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE);
1656 slot = tp->slots + args->sa_slotid; 1614 slot = tp->slots + args->sa_slotid;
1657 1615
1658 RESERVE_SPACE(4); 1616 p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16);
1659 WRITE32(OP_SEQUENCE); 1617 *p++ = cpu_to_be32(OP_SEQUENCE);
1660 1618
1661 /* 1619 /*
1662 * Sessionid + seqid + slotid + max slotid + cache_this 1620 * Sessionid + seqid + slotid + max slotid + cache_this
@@ -1670,12 +1628,11 @@ static void encode_sequence(struct xdr_stream *xdr,
1670 ((u32 *)session->sess_id.data)[3], 1628 ((u32 *)session->sess_id.data)[3],
1671 slot->seq_nr, args->sa_slotid, 1629 slot->seq_nr, args->sa_slotid,
1672 tp->highest_used_slotid, args->sa_cache_this); 1630 tp->highest_used_slotid, args->sa_cache_this);
1673 RESERVE_SPACE(NFS4_MAX_SESSIONID_LEN + 16); 1631 p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN);
1674 WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1632 *p++ = cpu_to_be32(slot->seq_nr);
1675 WRITE32(slot->seq_nr); 1633 *p++ = cpu_to_be32(args->sa_slotid);
1676 WRITE32(args->sa_slotid); 1634 *p++ = cpu_to_be32(tp->highest_used_slotid);
1677 WRITE32(tp->highest_used_slotid); 1635 *p = cpu_to_be32(args->sa_cache_this);
1678 WRITE32(args->sa_cache_this);
1679 hdr->nops++; 1636 hdr->nops++;
1680 hdr->replen += decode_sequence_maxsz; 1637 hdr->replen += decode_sequence_maxsz;
1681#endif /* CONFIG_NFS_V4_1 */ 1638#endif /* CONFIG_NFS_V4_1 */
@@ -2466,68 +2423,53 @@ static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p,
2466} 2423}
2467#endif /* CONFIG_NFS_V4_1 */ 2424#endif /* CONFIG_NFS_V4_1 */
2468 2425
2469/* 2426static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
2470 * START OF "GENERIC" DECODE ROUTINES. 2427{
2471 * These may look a little ugly since they are imported from a "generic" 2428 dprintk("nfs: %s: prematurely hit end of receive buffer. "
2472 * set of XDR encode/decode routines which are intended to be shared by 2429 "Remaining buffer length is %tu words.\n",
2473 * all of our NFSv4 implementations (OpenBSD, MacOS X...). 2430 func, xdr->end - xdr->p);
2474 * 2431}
2475 * If the pain of reading these is too great, it should be a straightforward
2476 * task to translate them into Linux-specific versions which are more
2477 * consistent with the style used in NFSv2/v3...
2478 */
2479#define READ32(x) (x) = ntohl(*p++)
2480#define READ64(x) do { \
2481 (x) = (u64)ntohl(*p++) << 32; \
2482 (x) |= ntohl(*p++); \
2483} while (0)
2484#define READTIME(x) do { \
2485 p++; \
2486 (x.tv_sec) = ntohl(*p++); \
2487 (x.tv_nsec) = ntohl(*p++); \
2488} while (0)
2489#define COPYMEM(x,nbytes) do { \
2490 memcpy((x), p, nbytes); \
2491 p += XDR_QUADLEN(nbytes); \
2492} while (0)
2493
2494#define READ_BUF(nbytes) do { \
2495 p = xdr_inline_decode(xdr, nbytes); \
2496 if (unlikely(!p)) { \
2497 dprintk("nfs: %s: prematurely hit end of receive" \
2498 " buffer\n", __func__); \
2499 dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \
2500 __func__, xdr->p, nbytes, xdr->end); \
2501 return -EIO; \
2502 } \
2503} while (0)
2504 2432
2505static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 2433static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
2506{ 2434{
2507 __be32 *p; 2435 __be32 *p;
2508 2436
2509 READ_BUF(4); 2437 p = xdr_inline_decode(xdr, 4);
2510 READ32(*len); 2438 if (unlikely(!p))
2511 READ_BUF(*len); 2439 goto out_overflow;
2440 *len = be32_to_cpup(p);
2441 p = xdr_inline_decode(xdr, *len);
2442 if (unlikely(!p))
2443 goto out_overflow;
2512 *string = (char *)p; 2444 *string = (char *)p;
2513 return 0; 2445 return 0;
2446out_overflow:
2447 print_overflow_msg(__func__, xdr);
2448 return -EIO;
2514} 2449}
2515 2450
2516static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 2451static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
2517{ 2452{
2518 __be32 *p; 2453 __be32 *p;
2519 2454
2520 READ_BUF(8); 2455 p = xdr_inline_decode(xdr, 8);
2521 READ32(hdr->status); 2456 if (unlikely(!p))
2522 READ32(hdr->taglen); 2457 goto out_overflow;
2458 hdr->status = be32_to_cpup(p++);
2459 hdr->taglen = be32_to_cpup(p);
2523 2460
2524 READ_BUF(hdr->taglen + 4); 2461 p = xdr_inline_decode(xdr, hdr->taglen + 4);
2462 if (unlikely(!p))
2463 goto out_overflow;
2525 hdr->tag = (char *)p; 2464 hdr->tag = (char *)p;
2526 p += XDR_QUADLEN(hdr->taglen); 2465 p += XDR_QUADLEN(hdr->taglen);
2527 READ32(hdr->nops); 2466 hdr->nops = be32_to_cpup(p);
2528 if (unlikely(hdr->nops < 1)) 2467 if (unlikely(hdr->nops < 1))
2529 return nfs4_stat_to_errno(hdr->status); 2468 return nfs4_stat_to_errno(hdr->status);
2530 return 0; 2469 return 0;
2470out_overflow:
2471 print_overflow_msg(__func__, xdr);
2472 return -EIO;
2531} 2473}
2532 2474
2533static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 2475static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
@@ -2536,18 +2478,23 @@ static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected)
2536 uint32_t opnum; 2478 uint32_t opnum;
2537 int32_t nfserr; 2479 int32_t nfserr;
2538 2480
2539 READ_BUF(8); 2481 p = xdr_inline_decode(xdr, 8);
2540 READ32(opnum); 2482 if (unlikely(!p))
2483 goto out_overflow;
2484 opnum = be32_to_cpup(p++);
2541 if (opnum != expected) { 2485 if (opnum != expected) {
2542 dprintk("nfs: Server returned operation" 2486 dprintk("nfs: Server returned operation"
2543 " %d but we issued a request for %d\n", 2487 " %d but we issued a request for %d\n",
2544 opnum, expected); 2488 opnum, expected);
2545 return -EIO; 2489 return -EIO;
2546 } 2490 }
2547 READ32(nfserr); 2491 nfserr = be32_to_cpup(p);
2548 if (nfserr != NFS_OK) 2492 if (nfserr != NFS_OK)
2549 return nfs4_stat_to_errno(nfserr); 2493 return nfs4_stat_to_errno(nfserr);
2550 return 0; 2494 return 0;
2495out_overflow:
2496 print_overflow_msg(__func__, xdr);
2497 return -EIO;
2551} 2498}
2552 2499
2553/* Dummy routine */ 2500/* Dummy routine */
@@ -2557,8 +2504,11 @@ static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
2557 unsigned int strlen; 2504 unsigned int strlen;
2558 char *str; 2505 char *str;
2559 2506
2560 READ_BUF(12); 2507 p = xdr_inline_decode(xdr, 12);
2561 return decode_opaque_inline(xdr, &strlen, &str); 2508 if (likely(p))
2509 return decode_opaque_inline(xdr, &strlen, &str);
2510 print_overflow_msg(__func__, xdr);
2511 return -EIO;
2562} 2512}
2563 2513
2564static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 2514static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
@@ -2566,27 +2516,39 @@ static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
2566 uint32_t bmlen; 2516 uint32_t bmlen;
2567 __be32 *p; 2517 __be32 *p;
2568 2518
2569 READ_BUF(4); 2519 p = xdr_inline_decode(xdr, 4);
2570 READ32(bmlen); 2520 if (unlikely(!p))
2521 goto out_overflow;
2522 bmlen = be32_to_cpup(p);
2571 2523
2572 bitmap[0] = bitmap[1] = 0; 2524 bitmap[0] = bitmap[1] = 0;
2573 READ_BUF((bmlen << 2)); 2525 p = xdr_inline_decode(xdr, (bmlen << 2));
2526 if (unlikely(!p))
2527 goto out_overflow;
2574 if (bmlen > 0) { 2528 if (bmlen > 0) {
2575 READ32(bitmap[0]); 2529 bitmap[0] = be32_to_cpup(p++);
2576 if (bmlen > 1) 2530 if (bmlen > 1)
2577 READ32(bitmap[1]); 2531 bitmap[1] = be32_to_cpup(p);
2578 } 2532 }
2579 return 0; 2533 return 0;
2534out_overflow:
2535 print_overflow_msg(__func__, xdr);
2536 return -EIO;
2580} 2537}
2581 2538
2582static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 2539static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep)
2583{ 2540{
2584 __be32 *p; 2541 __be32 *p;
2585 2542
2586 READ_BUF(4); 2543 p = xdr_inline_decode(xdr, 4);
2587 READ32(*attrlen); 2544 if (unlikely(!p))
2545 goto out_overflow;
2546 *attrlen = be32_to_cpup(p);
2588 *savep = xdr->p; 2547 *savep = xdr->p;
2589 return 0; 2548 return 0;
2549out_overflow:
2550 print_overflow_msg(__func__, xdr);
2551 return -EIO;
2590} 2552}
2591 2553
2592static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 2554static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
@@ -2609,8 +2571,10 @@ static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *
2609 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 2571 if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U)))
2610 return -EIO; 2572 return -EIO;
2611 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2573 if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) {
2612 READ_BUF(4); 2574 p = xdr_inline_decode(xdr, 4);
2613 READ32(*type); 2575 if (unlikely(!p))
2576 goto out_overflow;
2577 *type = be32_to_cpup(p);
2614 if (*type < NF4REG || *type > NF4NAMEDATTR) { 2578 if (*type < NF4REG || *type > NF4NAMEDATTR) {
2615 dprintk("%s: bad type %d\n", __func__, *type); 2579 dprintk("%s: bad type %d\n", __func__, *type);
2616 return -EIO; 2580 return -EIO;
@@ -2620,6 +2584,9 @@ static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *
2620 } 2584 }
2621 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2585 dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
2622 return ret; 2586 return ret;
2587out_overflow:
2588 print_overflow_msg(__func__, xdr);
2589 return -EIO;
2623} 2590}
2624 2591
2625static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 2592static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change)
@@ -2631,14 +2598,19 @@ static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t
2631 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 2598 if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U)))
2632 return -EIO; 2599 return -EIO;
2633 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2600 if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) {
2634 READ_BUF(8); 2601 p = xdr_inline_decode(xdr, 8);
2635 READ64(*change); 2602 if (unlikely(!p))
2603 goto out_overflow;
2604 xdr_decode_hyper(p, change);
2636 bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2605 bitmap[0] &= ~FATTR4_WORD0_CHANGE;
2637 ret = NFS_ATTR_FATTR_CHANGE; 2606 ret = NFS_ATTR_FATTR_CHANGE;
2638 } 2607 }
2639 dprintk("%s: change attribute=%Lu\n", __func__, 2608 dprintk("%s: change attribute=%Lu\n", __func__,
2640 (unsigned long long)*change); 2609 (unsigned long long)*change);
2641 return ret; 2610 return ret;
2611out_overflow:
2612 print_overflow_msg(__func__, xdr);
2613 return -EIO;
2642} 2614}
2643 2615
2644static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 2616static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size)
@@ -2650,13 +2622,18 @@ static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *
2650 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 2622 if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U)))
2651 return -EIO; 2623 return -EIO;
2652 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2624 if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) {
2653 READ_BUF(8); 2625 p = xdr_inline_decode(xdr, 8);
2654 READ64(*size); 2626 if (unlikely(!p))
2627 goto out_overflow;
2628 xdr_decode_hyper(p, size);
2655 bitmap[0] &= ~FATTR4_WORD0_SIZE; 2629 bitmap[0] &= ~FATTR4_WORD0_SIZE;
2656 ret = NFS_ATTR_FATTR_SIZE; 2630 ret = NFS_ATTR_FATTR_SIZE;
2657 } 2631 }
2658 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2632 dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size);
2659 return ret; 2633 return ret;
2634out_overflow:
2635 print_overflow_msg(__func__, xdr);
2636 return -EIO;
2660} 2637}
2661 2638
2662static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2639static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
@@ -2667,12 +2644,17 @@ static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, ui
2667 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 2644 if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U)))
2668 return -EIO; 2645 return -EIO;
2669 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2646 if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) {
2670 READ_BUF(4); 2647 p = xdr_inline_decode(xdr, 4);
2671 READ32(*res); 2648 if (unlikely(!p))
2649 goto out_overflow;
2650 *res = be32_to_cpup(p);
2672 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 2651 bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT;
2673 } 2652 }
2674 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 2653 dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true");
2675 return 0; 2654 return 0;
2655out_overflow:
2656 print_overflow_msg(__func__, xdr);
2657 return -EIO;
2676} 2658}
2677 2659
2678static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2660static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
@@ -2683,12 +2665,17 @@ static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap,
2683 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 2665 if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U)))
2684 return -EIO; 2666 return -EIO;
2685 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2667 if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) {
2686 READ_BUF(4); 2668 p = xdr_inline_decode(xdr, 4);
2687 READ32(*res); 2669 if (unlikely(!p))
2670 goto out_overflow;
2671 *res = be32_to_cpup(p);
2688 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 2672 bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT;
2689 } 2673 }
2690 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 2674 dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true");
2691 return 0; 2675 return 0;
2676out_overflow:
2677 print_overflow_msg(__func__, xdr);
2678 return -EIO;
2692} 2679}
2693 2680
2694static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 2681static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
@@ -2701,9 +2688,11 @@ static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs
2701 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 2688 if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U)))
2702 return -EIO; 2689 return -EIO;
2703 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2690 if (likely(bitmap[0] & FATTR4_WORD0_FSID)) {
2704 READ_BUF(16); 2691 p = xdr_inline_decode(xdr, 16);
2705 READ64(fsid->major); 2692 if (unlikely(!p))
2706 READ64(fsid->minor); 2693 goto out_overflow;
2694 p = xdr_decode_hyper(p, &fsid->major);
2695 xdr_decode_hyper(p, &fsid->minor);
2707 bitmap[0] &= ~FATTR4_WORD0_FSID; 2696 bitmap[0] &= ~FATTR4_WORD0_FSID;
2708 ret = NFS_ATTR_FATTR_FSID; 2697 ret = NFS_ATTR_FATTR_FSID;
2709 } 2698 }
@@ -2711,6 +2700,9 @@ static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs
2711 (unsigned long long)fsid->major, 2700 (unsigned long long)fsid->major,
2712 (unsigned long long)fsid->minor); 2701 (unsigned long long)fsid->minor);
2713 return ret; 2702 return ret;
2703out_overflow:
2704 print_overflow_msg(__func__, xdr);
2705 return -EIO;
2714} 2706}
2715 2707
2716static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2708static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
@@ -2721,12 +2713,17 @@ static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint
2721 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 2713 if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U)))
2722 return -EIO; 2714 return -EIO;
2723 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 2715 if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) {
2724 READ_BUF(4); 2716 p = xdr_inline_decode(xdr, 4);
2725 READ32(*res); 2717 if (unlikely(!p))
2718 goto out_overflow;
2719 *res = be32_to_cpup(p);
2726 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 2720 bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME;
2727 } 2721 }
2728 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 2722 dprintk("%s: file size=%u\n", __func__, (unsigned int)*res);
2729 return 0; 2723 return 0;
2724out_overflow:
2725 print_overflow_msg(__func__, xdr);
2726 return -EIO;
2730} 2727}
2731 2728
2732static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 2729static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
@@ -2737,12 +2734,17 @@ static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint
2737 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 2734 if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U)))
2738 return -EIO; 2735 return -EIO;
2739 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 2736 if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) {
2740 READ_BUF(4); 2737 p = xdr_inline_decode(xdr, 4);
2741 READ32(*res); 2738 if (unlikely(!p))
2739 goto out_overflow;
2740 *res = be32_to_cpup(p);
2742 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 2741 bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT;
2743 } 2742 }
2744 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 2743 dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res);
2745 return 0; 2744 return 0;
2745out_overflow:
2746 print_overflow_msg(__func__, xdr);
2747 return -EIO;
2746} 2748}
2747 2749
2748static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 2750static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
@@ -2754,13 +2756,18 @@ static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t
2754 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 2756 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U)))
2755 return -EIO; 2757 return -EIO;
2756 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 2758 if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) {
2757 READ_BUF(8); 2759 p = xdr_inline_decode(xdr, 8);
2758 READ64(*fileid); 2760 if (unlikely(!p))
2761 goto out_overflow;
2762 xdr_decode_hyper(p, fileid);
2759 bitmap[0] &= ~FATTR4_WORD0_FILEID; 2763 bitmap[0] &= ~FATTR4_WORD0_FILEID;
2760 ret = NFS_ATTR_FATTR_FILEID; 2764 ret = NFS_ATTR_FATTR_FILEID;
2761 } 2765 }
2762 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2766 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
2763 return ret; 2767 return ret;
2768out_overflow:
2769 print_overflow_msg(__func__, xdr);
2770 return -EIO;
2764} 2771}
2765 2772
2766static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 2773static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
@@ -2772,13 +2779,18 @@ static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitma
2772 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 2779 if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
2773 return -EIO; 2780 return -EIO;
2774 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 2781 if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
2775 READ_BUF(8); 2782 p = xdr_inline_decode(xdr, 8);
2776 READ64(*fileid); 2783 if (unlikely(!p))
2784 goto out_overflow;
2785 xdr_decode_hyper(p, fileid);
2777 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2786 bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
2778 ret = NFS_ATTR_FATTR_FILEID; 2787 ret = NFS_ATTR_FATTR_FILEID;
2779 } 2788 }
2780 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2789 dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid);
2781 return ret; 2790 return ret;
2791out_overflow:
2792 print_overflow_msg(__func__, xdr);
2793 return -EIO;
2782} 2794}
2783 2795
2784static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2796static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
@@ -2790,12 +2802,17 @@ static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uin
2790 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 2802 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U)))
2791 return -EIO; 2803 return -EIO;
2792 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 2804 if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) {
2793 READ_BUF(8); 2805 p = xdr_inline_decode(xdr, 8);
2794 READ64(*res); 2806 if (unlikely(!p))
2807 goto out_overflow;
2808 xdr_decode_hyper(p, res);
2795 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 2809 bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL;
2796 } 2810 }
2797 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 2811 dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res);
2798 return status; 2812 return status;
2813out_overflow:
2814 print_overflow_msg(__func__, xdr);
2815 return -EIO;
2799} 2816}
2800 2817
2801static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2818static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
@@ -2807,12 +2824,17 @@ static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint
2807 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 2824 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U)))
2808 return -EIO; 2825 return -EIO;
2809 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 2826 if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) {
2810 READ_BUF(8); 2827 p = xdr_inline_decode(xdr, 8);
2811 READ64(*res); 2828 if (unlikely(!p))
2829 goto out_overflow;
2830 xdr_decode_hyper(p, res);
2812 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 2831 bitmap[0] &= ~FATTR4_WORD0_FILES_FREE;
2813 } 2832 }
2814 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 2833 dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res);
2815 return status; 2834 return status;
2835out_overflow:
2836 print_overflow_msg(__func__, xdr);
2837 return -EIO;
2816} 2838}
2817 2839
2818static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 2840static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
@@ -2824,12 +2846,17 @@ static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uin
2824 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 2846 if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U)))
2825 return -EIO; 2847 return -EIO;
2826 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 2848 if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) {
2827 READ_BUF(8); 2849 p = xdr_inline_decode(xdr, 8);
2828 READ64(*res); 2850 if (unlikely(!p))
2851 goto out_overflow;
2852 xdr_decode_hyper(p, res);
2829 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 2853 bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL;
2830 } 2854 }
2831 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 2855 dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res);
2832 return status; 2856 return status;
2857out_overflow:
2858 print_overflow_msg(__func__, xdr);
2859 return -EIO;
2833} 2860}
2834 2861
2835static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 2862static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
@@ -2838,8 +2865,10 @@ static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
2838 __be32 *p; 2865 __be32 *p;
2839 int status = 0; 2866 int status = 0;
2840 2867
2841 READ_BUF(4); 2868 p = xdr_inline_decode(xdr, 4);
2842 READ32(n); 2869 if (unlikely(!p))
2870 goto out_overflow;
2871 n = be32_to_cpup(p);
2843 if (n == 0) 2872 if (n == 0)
2844 goto root_path; 2873 goto root_path;
2845 dprintk("path "); 2874 dprintk("path ");
@@ -2873,6 +2902,9 @@ out_eio:
2873 dprintk(" status %d", status); 2902 dprintk(" status %d", status);
2874 status = -EIO; 2903 status = -EIO;
2875 goto out; 2904 goto out;
2905out_overflow:
2906 print_overflow_msg(__func__, xdr);
2907 return -EIO;
2876} 2908}
2877 2909
2878static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2910static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
@@ -2890,8 +2922,10 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
2890 status = decode_pathname(xdr, &res->fs_path); 2922 status = decode_pathname(xdr, &res->fs_path);
2891 if (unlikely(status != 0)) 2923 if (unlikely(status != 0))
2892 goto out; 2924 goto out;
2893 READ_BUF(4); 2925 p = xdr_inline_decode(xdr, 4);
2894 READ32(n); 2926 if (unlikely(!p))
2927 goto out_overflow;
2928 n = be32_to_cpup(p);
2895 if (n <= 0) 2929 if (n <= 0)
2896 goto out_eio; 2930 goto out_eio;
2897 res->nlocations = 0; 2931 res->nlocations = 0;
@@ -2899,8 +2933,10 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
2899 u32 m; 2933 u32 m;
2900 struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2934 struct nfs4_fs_location *loc = &res->locations[res->nlocations];
2901 2935
2902 READ_BUF(4); 2936 p = xdr_inline_decode(xdr, 4);
2903 READ32(m); 2937 if (unlikely(!p))
2938 goto out_overflow;
2939 m = be32_to_cpup(p);
2904 2940
2905 loc->nservers = 0; 2941 loc->nservers = 0;
2906 dprintk("%s: servers ", __func__); 2942 dprintk("%s: servers ", __func__);
@@ -2939,6 +2975,8 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
2939out: 2975out:
2940 dprintk("%s: fs_locations done, error = %d\n", __func__, status); 2976 dprintk("%s: fs_locations done, error = %d\n", __func__, status);
2941 return status; 2977 return status;
2978out_overflow:
2979 print_overflow_msg(__func__, xdr);
2942out_eio: 2980out_eio:
2943 status = -EIO; 2981 status = -EIO;
2944 goto out; 2982 goto out;
@@ -2953,12 +2991,17 @@ static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uin
2953 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 2991 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U)))
2954 return -EIO; 2992 return -EIO;
2955 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 2993 if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) {
2956 READ_BUF(8); 2994 p = xdr_inline_decode(xdr, 8);
2957 READ64(*res); 2995 if (unlikely(!p))
2996 goto out_overflow;
2997 xdr_decode_hyper(p, res);
2958 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 2998 bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE;
2959 } 2999 }
2960 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 3000 dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res);
2961 return status; 3001 return status;
3002out_overflow:
3003 print_overflow_msg(__func__, xdr);
3004 return -EIO;
2962} 3005}
2963 3006
2964static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 3007static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink)
@@ -2970,12 +3013,17 @@ static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_
2970 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 3013 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U)))
2971 return -EIO; 3014 return -EIO;
2972 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3015 if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) {
2973 READ_BUF(4); 3016 p = xdr_inline_decode(xdr, 4);
2974 READ32(*maxlink); 3017 if (unlikely(!p))
3018 goto out_overflow;
3019 *maxlink = be32_to_cpup(p);
2975 bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 3020 bitmap[0] &= ~FATTR4_WORD0_MAXLINK;
2976 } 3021 }
2977 dprintk("%s: maxlink=%u\n", __func__, *maxlink); 3022 dprintk("%s: maxlink=%u\n", __func__, *maxlink);
2978 return status; 3023 return status;
3024out_overflow:
3025 print_overflow_msg(__func__, xdr);
3026 return -EIO;
2979} 3027}
2980 3028
2981static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 3029static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname)
@@ -2987,12 +3035,17 @@ static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_
2987 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 3035 if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U)))
2988 return -EIO; 3036 return -EIO;
2989 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3037 if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) {
2990 READ_BUF(4); 3038 p = xdr_inline_decode(xdr, 4);
2991 READ32(*maxname); 3039 if (unlikely(!p))
3040 goto out_overflow;
3041 *maxname = be32_to_cpup(p);
2992 bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 3042 bitmap[0] &= ~FATTR4_WORD0_MAXNAME;
2993 } 3043 }
2994 dprintk("%s: maxname=%u\n", __func__, *maxname); 3044 dprintk("%s: maxname=%u\n", __func__, *maxname);
2995 return status; 3045 return status;
3046out_overflow:
3047 print_overflow_msg(__func__, xdr);
3048 return -EIO;
2996} 3049}
2997 3050
2998static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 3051static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
@@ -3005,8 +3058,10 @@ static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_
3005 return -EIO; 3058 return -EIO;
3006 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 3059 if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) {
3007 uint64_t maxread; 3060 uint64_t maxread;
3008 READ_BUF(8); 3061 p = xdr_inline_decode(xdr, 8);
3009 READ64(maxread); 3062 if (unlikely(!p))
3063 goto out_overflow;
3064 xdr_decode_hyper(p, &maxread);
3010 if (maxread > 0x7FFFFFFF) 3065 if (maxread > 0x7FFFFFFF)
3011 maxread = 0x7FFFFFFF; 3066 maxread = 0x7FFFFFFF;
3012 *res = (uint32_t)maxread; 3067 *res = (uint32_t)maxread;
@@ -3014,6 +3069,9 @@ static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_
3014 } 3069 }
3015 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 3070 dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res);
3016 return status; 3071 return status;
3072out_overflow:
3073 print_overflow_msg(__func__, xdr);
3074 return -EIO;
3017} 3075}
3018 3076
3019static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 3077static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res)
@@ -3026,8 +3084,10 @@ static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32
3026 return -EIO; 3084 return -EIO;
3027 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 3085 if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) {
3028 uint64_t maxwrite; 3086 uint64_t maxwrite;
3029 READ_BUF(8); 3087 p = xdr_inline_decode(xdr, 8);
3030 READ64(maxwrite); 3088 if (unlikely(!p))
3089 goto out_overflow;
3090 xdr_decode_hyper(p, &maxwrite);
3031 if (maxwrite > 0x7FFFFFFF) 3091 if (maxwrite > 0x7FFFFFFF)
3032 maxwrite = 0x7FFFFFFF; 3092 maxwrite = 0x7FFFFFFF;
3033 *res = (uint32_t)maxwrite; 3093 *res = (uint32_t)maxwrite;
@@ -3035,6 +3095,9 @@ static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32
3035 } 3095 }
3036 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 3096 dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res);
3037 return status; 3097 return status;
3098out_overflow:
3099 print_overflow_msg(__func__, xdr);
3100 return -EIO;
3038} 3101}
3039 3102
3040static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 3103static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
@@ -3047,14 +3110,19 @@ static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *m
3047 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 3110 if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U)))
3048 return -EIO; 3111 return -EIO;
3049 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3112 if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
3050 READ_BUF(4); 3113 p = xdr_inline_decode(xdr, 4);
3051 READ32(tmp); 3114 if (unlikely(!p))
3115 goto out_overflow;
3116 tmp = be32_to_cpup(p);
3052 *mode = tmp & ~S_IFMT; 3117 *mode = tmp & ~S_IFMT;
3053 bitmap[1] &= ~FATTR4_WORD1_MODE; 3118 bitmap[1] &= ~FATTR4_WORD1_MODE;
3054 ret = NFS_ATTR_FATTR_MODE; 3119 ret = NFS_ATTR_FATTR_MODE;
3055 } 3120 }
3056 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3121 dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
3057 return ret; 3122 return ret;
3123out_overflow:
3124 print_overflow_msg(__func__, xdr);
3125 return -EIO;
3058} 3126}
3059 3127
3060static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 3128static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink)
@@ -3066,16 +3134,22 @@ static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t
3066 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 3134 if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U)))
3067 return -EIO; 3135 return -EIO;
3068 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3136 if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) {
3069 READ_BUF(4); 3137 p = xdr_inline_decode(xdr, 4);
3070 READ32(*nlink); 3138 if (unlikely(!p))
3139 goto out_overflow;
3140 *nlink = be32_to_cpup(p);
3071 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3141 bitmap[1] &= ~FATTR4_WORD1_NUMLINKS;
3072 ret = NFS_ATTR_FATTR_NLINK; 3142 ret = NFS_ATTR_FATTR_NLINK;
3073 } 3143 }
3074 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3144 dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink);
3075 return ret; 3145 return ret;
3146out_overflow:
3147 print_overflow_msg(__func__, xdr);
3148 return -EIO;
3076} 3149}
3077 3150
3078static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 3151static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
3152 struct nfs_client *clp, uint32_t *uid, int may_sleep)
3079{ 3153{
3080 uint32_t len; 3154 uint32_t len;
3081 __be32 *p; 3155 __be32 *p;
@@ -3085,10 +3159,16 @@ static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nf
3085 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 3159 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U)))
3086 return -EIO; 3160 return -EIO;
3087 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3161 if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) {
3088 READ_BUF(4); 3162 p = xdr_inline_decode(xdr, 4);
3089 READ32(len); 3163 if (unlikely(!p))
3090 READ_BUF(len); 3164 goto out_overflow;
3091 if (len < XDR_MAX_NETOBJ) { 3165 len = be32_to_cpup(p);
3166 p = xdr_inline_decode(xdr, len);
3167 if (unlikely(!p))
3168 goto out_overflow;
3169 if (!may_sleep) {
3170 /* do nothing */
3171 } else if (len < XDR_MAX_NETOBJ) {
3092 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3172 if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0)
3093 ret = NFS_ATTR_FATTR_OWNER; 3173 ret = NFS_ATTR_FATTR_OWNER;
3094 else 3174 else
@@ -3101,9 +3181,13 @@ static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nf
3101 } 3181 }
3102 dprintk("%s: uid=%d\n", __func__, (int)*uid); 3182 dprintk("%s: uid=%d\n", __func__, (int)*uid);
3103 return ret; 3183 return ret;
3184out_overflow:
3185 print_overflow_msg(__func__, xdr);
3186 return -EIO;
3104} 3187}
3105 3188
3106static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 3189static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
3190 struct nfs_client *clp, uint32_t *gid, int may_sleep)
3107{ 3191{
3108 uint32_t len; 3192 uint32_t len;
3109 __be32 *p; 3193 __be32 *p;
@@ -3113,10 +3197,16 @@ static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nf
3113 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 3197 if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U)))
3114 return -EIO; 3198 return -EIO;
3115 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3199 if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) {
3116 READ_BUF(4); 3200 p = xdr_inline_decode(xdr, 4);
3117 READ32(len); 3201 if (unlikely(!p))
3118 READ_BUF(len); 3202 goto out_overflow;
3119 if (len < XDR_MAX_NETOBJ) { 3203 len = be32_to_cpup(p);
3204 p = xdr_inline_decode(xdr, len);
3205 if (unlikely(!p))
3206 goto out_overflow;
3207 if (!may_sleep) {
3208 /* do nothing */
3209 } else if (len < XDR_MAX_NETOBJ) {
3120 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3210 if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0)
3121 ret = NFS_ATTR_FATTR_GROUP; 3211 ret = NFS_ATTR_FATTR_GROUP;
3122 else 3212 else
@@ -3129,6 +3219,9 @@ static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nf
3129 } 3219 }
3130 dprintk("%s: gid=%d\n", __func__, (int)*gid); 3220 dprintk("%s: gid=%d\n", __func__, (int)*gid);
3131 return ret; 3221 return ret;
3222out_overflow:
3223 print_overflow_msg(__func__, xdr);
3224 return -EIO;
3132} 3225}
3133 3226
3134static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 3227static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev)
@@ -3143,9 +3236,11 @@ static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rde
3143 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 3236 if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) {
3144 dev_t tmp; 3237 dev_t tmp;
3145 3238
3146 READ_BUF(8); 3239 p = xdr_inline_decode(xdr, 8);
3147 READ32(major); 3240 if (unlikely(!p))
3148 READ32(minor); 3241 goto out_overflow;
3242 major = be32_to_cpup(p++);
3243 minor = be32_to_cpup(p);
3149 tmp = MKDEV(major, minor); 3244 tmp = MKDEV(major, minor);
3150 if (MAJOR(tmp) == major && MINOR(tmp) == minor) 3245 if (MAJOR(tmp) == major && MINOR(tmp) == minor)
3151 *rdev = tmp; 3246 *rdev = tmp;
@@ -3154,6 +3249,9 @@ static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rde
3154 } 3249 }
3155 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3250 dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor);
3156 return ret; 3251 return ret;
3252out_overflow:
3253 print_overflow_msg(__func__, xdr);
3254 return -EIO;
3157} 3255}
3158 3256
3159static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 3257static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
@@ -3165,12 +3263,17 @@ static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uin
3165 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 3263 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U)))
3166 return -EIO; 3264 return -EIO;
3167 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3265 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) {
3168 READ_BUF(8); 3266 p = xdr_inline_decode(xdr, 8);
3169 READ64(*res); 3267 if (unlikely(!p))
3268 goto out_overflow;
3269 xdr_decode_hyper(p, res);
3170 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 3270 bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL;
3171 } 3271 }
3172 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 3272 dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res);
3173 return status; 3273 return status;
3274out_overflow:
3275 print_overflow_msg(__func__, xdr);
3276 return -EIO;
3174} 3277}
3175 3278
3176static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 3279static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
@@ -3182,12 +3285,17 @@ static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint
3182 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 3285 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U)))
3183 return -EIO; 3286 return -EIO;
3184 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3287 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) {
3185 READ_BUF(8); 3288 p = xdr_inline_decode(xdr, 8);
3186 READ64(*res); 3289 if (unlikely(!p))
3290 goto out_overflow;
3291 xdr_decode_hyper(p, res);
3187 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 3292 bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE;
3188 } 3293 }
3189 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 3294 dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res);
3190 return status; 3295 return status;
3296out_overflow:
3297 print_overflow_msg(__func__, xdr);
3298 return -EIO;
3191} 3299}
3192 3300
3193static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 3301static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
@@ -3199,12 +3307,17 @@ static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uin
3199 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 3307 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U)))
3200 return -EIO; 3308 return -EIO;
3201 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3309 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) {
3202 READ_BUF(8); 3310 p = xdr_inline_decode(xdr, 8);
3203 READ64(*res); 3311 if (unlikely(!p))
3312 goto out_overflow;
3313 xdr_decode_hyper(p, res);
3204 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 3314 bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL;
3205 } 3315 }
3206 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 3316 dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res);
3207 return status; 3317 return status;
3318out_overflow:
3319 print_overflow_msg(__func__, xdr);
3320 return -EIO;
3208} 3321}
3209 3322
3210static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 3323static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used)
@@ -3216,14 +3329,19 @@ static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint
3216 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 3329 if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U)))
3217 return -EIO; 3330 return -EIO;
3218 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3331 if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) {
3219 READ_BUF(8); 3332 p = xdr_inline_decode(xdr, 8);
3220 READ64(*used); 3333 if (unlikely(!p))
3334 goto out_overflow;
3335 xdr_decode_hyper(p, used);
3221 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3336 bitmap[1] &= ~FATTR4_WORD1_SPACE_USED;
3222 ret = NFS_ATTR_FATTR_SPACE_USED; 3337 ret = NFS_ATTR_FATTR_SPACE_USED;
3223 } 3338 }
3224 dprintk("%s: space used=%Lu\n", __func__, 3339 dprintk("%s: space used=%Lu\n", __func__,
3225 (unsigned long long)*used); 3340 (unsigned long long)*used);
3226 return ret; 3341 return ret;
3342out_overflow:
3343 print_overflow_msg(__func__, xdr);
3344 return -EIO;
3227} 3345}
3228 3346
3229static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 3347static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
@@ -3232,12 +3350,17 @@ static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time)
3232 uint64_t sec; 3350 uint64_t sec;
3233 uint32_t nsec; 3351 uint32_t nsec;
3234 3352
3235 READ_BUF(12); 3353 p = xdr_inline_decode(xdr, 12);
3236 READ64(sec); 3354 if (unlikely(!p))
3237 READ32(nsec); 3355 goto out_overflow;
3356 p = xdr_decode_hyper(p, &sec);
3357 nsec = be32_to_cpup(p);
3238 time->tv_sec = (time_t)sec; 3358 time->tv_sec = (time_t)sec;
3239 time->tv_nsec = (long)nsec; 3359 time->tv_nsec = (long)nsec;
3240 return 0; 3360 return 0;
3361out_overflow:
3362 print_overflow_msg(__func__, xdr);
3363 return -EIO;
3241} 3364}
3242 3365
3243static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 3366static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)
@@ -3315,11 +3438,16 @@ static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *c
3315{ 3438{
3316 __be32 *p; 3439 __be32 *p;
3317 3440
3318 READ_BUF(20); 3441 p = xdr_inline_decode(xdr, 20);
3319 READ32(cinfo->atomic); 3442 if (unlikely(!p))
3320 READ64(cinfo->before); 3443 goto out_overflow;
3321 READ64(cinfo->after); 3444 cinfo->atomic = be32_to_cpup(p++);
3445 p = xdr_decode_hyper(p, &cinfo->before);
3446 xdr_decode_hyper(p, &cinfo->after);
3322 return 0; 3447 return 0;
3448out_overflow:
3449 print_overflow_msg(__func__, xdr);
3450 return -EIO;
3323} 3451}
3324 3452
3325static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 3453static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
@@ -3331,40 +3459,62 @@ static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access)
3331 status = decode_op_hdr(xdr, OP_ACCESS); 3459 status = decode_op_hdr(xdr, OP_ACCESS);
3332 if (status) 3460 if (status)
3333 return status; 3461 return status;
3334 READ_BUF(8); 3462 p = xdr_inline_decode(xdr, 8);
3335 READ32(supp); 3463 if (unlikely(!p))
3336 READ32(acc); 3464 goto out_overflow;
3465 supp = be32_to_cpup(p++);
3466 acc = be32_to_cpup(p);
3337 access->supported = supp; 3467 access->supported = supp;
3338 access->access = acc; 3468 access->access = acc;
3339 return 0; 3469 return 0;
3470out_overflow:
3471 print_overflow_msg(__func__, xdr);
3472 return -EIO;
3340} 3473}
3341 3474
3342static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 3475static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len)
3343{ 3476{
3344 __be32 *p; 3477 __be32 *p;
3478
3479 p = xdr_inline_decode(xdr, len);
3480 if (likely(p)) {
3481 memcpy(buf, p, len);
3482 return 0;
3483 }
3484 print_overflow_msg(__func__, xdr);
3485 return -EIO;
3486}
3487
3488static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
3489{
3490 return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE);
3491}
3492
3493static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res)
3494{
3345 int status; 3495 int status;
3346 3496
3347 status = decode_op_hdr(xdr, OP_CLOSE); 3497 status = decode_op_hdr(xdr, OP_CLOSE);
3348 if (status != -EIO) 3498 if (status != -EIO)
3349 nfs_increment_open_seqid(status, res->seqid); 3499 nfs_increment_open_seqid(status, res->seqid);
3350 if (status) 3500 if (!status)
3351 return status; 3501 status = decode_stateid(xdr, &res->stateid);
3352 READ_BUF(NFS4_STATEID_SIZE); 3502 return status;
3353 COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 3503}
3354 return 0; 3504
3505static int decode_verifier(struct xdr_stream *xdr, void *verifier)
3506{
3507 return decode_opaque_fixed(xdr, verifier, 8);
3355} 3508}
3356 3509
3357static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 3510static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res)
3358{ 3511{
3359 __be32 *p;
3360 int status; 3512 int status;
3361 3513
3362 status = decode_op_hdr(xdr, OP_COMMIT); 3514 status = decode_op_hdr(xdr, OP_COMMIT);
3363 if (status) 3515 if (!status)
3364 return status; 3516 status = decode_verifier(xdr, res->verf->verifier);
3365 READ_BUF(8); 3517 return status;
3366 COPYMEM(res->verf->verifier, 8);
3367 return 0;
3368} 3518}
3369 3519
3370static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 3520static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
@@ -3378,10 +3528,16 @@ static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
3378 return status; 3528 return status;
3379 if ((status = decode_change_info(xdr, cinfo))) 3529 if ((status = decode_change_info(xdr, cinfo)))
3380 return status; 3530 return status;
3381 READ_BUF(4); 3531 p = xdr_inline_decode(xdr, 4);
3382 READ32(bmlen); 3532 if (unlikely(!p))
3383 READ_BUF(bmlen << 2); 3533 goto out_overflow;
3384 return 0; 3534 bmlen = be32_to_cpup(p);
3535 p = xdr_inline_decode(xdr, bmlen << 2);
3536 if (likely(p))
3537 return 0;
3538out_overflow:
3539 print_overflow_msg(__func__, xdr);
3540 return -EIO;
3385} 3541}
3386 3542
3387static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 3543static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
@@ -3466,7 +3622,8 @@ xdr_error:
3466 return status; 3622 return status;
3467} 3623}
3468 3624
3469static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 3625static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
3626 const struct nfs_server *server, int may_sleep)
3470{ 3627{
3471 __be32 *savep; 3628 __be32 *savep;
3472 uint32_t attrlen, 3629 uint32_t attrlen,
@@ -3538,12 +3695,14 @@ static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, cons
3538 goto xdr_error; 3695 goto xdr_error;
3539 fattr->valid |= status; 3696 fattr->valid |= status;
3540 3697
3541 status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); 3698 status = decode_attr_owner(xdr, bitmap, server->nfs_client,
3699 &fattr->uid, may_sleep);
3542 if (status < 0) 3700 if (status < 0)
3543 goto xdr_error; 3701 goto xdr_error;
3544 fattr->valid |= status; 3702 fattr->valid |= status;
3545 3703
3546 status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); 3704 status = decode_attr_group(xdr, bitmap, server->nfs_client,
3705 &fattr->gid, may_sleep);
3547 if (status < 0) 3706 if (status < 0)
3548 goto xdr_error; 3707 goto xdr_error;
3549 fattr->valid |= status; 3708 fattr->valid |= status;
@@ -3633,14 +3792,21 @@ static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh)
3633 if (status) 3792 if (status)
3634 return status; 3793 return status;
3635 3794
3636 READ_BUF(4); 3795 p = xdr_inline_decode(xdr, 4);
3637 READ32(len); 3796 if (unlikely(!p))
3797 goto out_overflow;
3798 len = be32_to_cpup(p);
3638 if (len > NFS4_FHSIZE) 3799 if (len > NFS4_FHSIZE)
3639 return -EIO; 3800 return -EIO;
3640 fh->size = len; 3801 fh->size = len;
3641 READ_BUF(len); 3802 p = xdr_inline_decode(xdr, len);
3642 COPYMEM(fh->data, len); 3803 if (unlikely(!p))
3804 goto out_overflow;
3805 memcpy(fh->data, p, len);
3643 return 0; 3806 return 0;
3807out_overflow:
3808 print_overflow_msg(__func__, xdr);
3809 return -EIO;
3644} 3810}
3645 3811
3646static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 3812static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
@@ -3662,10 +3828,12 @@ static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
3662 __be32 *p; 3828 __be32 *p;
3663 uint32_t namelen, type; 3829 uint32_t namelen, type;
3664 3830
3665 READ_BUF(32); 3831 p = xdr_inline_decode(xdr, 32);
3666 READ64(offset); 3832 if (unlikely(!p))
3667 READ64(length); 3833 goto out_overflow;
3668 READ32(type); 3834 p = xdr_decode_hyper(p, &offset);
3835 p = xdr_decode_hyper(p, &length);
3836 type = be32_to_cpup(p++);
3669 if (fl != NULL) { 3837 if (fl != NULL) {
3670 fl->fl_start = (loff_t)offset; 3838 fl->fl_start = (loff_t)offset;
3671 fl->fl_end = fl->fl_start + (loff_t)length - 1; 3839 fl->fl_end = fl->fl_start + (loff_t)length - 1;
@@ -3676,23 +3844,27 @@ static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
3676 fl->fl_type = F_RDLCK; 3844 fl->fl_type = F_RDLCK;
3677 fl->fl_pid = 0; 3845 fl->fl_pid = 0;
3678 } 3846 }
3679 READ64(clientid); 3847 p = xdr_decode_hyper(p, &clientid);
3680 READ32(namelen); 3848 namelen = be32_to_cpup(p);
3681 READ_BUF(namelen); 3849 p = xdr_inline_decode(xdr, namelen);
3682 return -NFS4ERR_DENIED; 3850 if (likely(p))
3851 return -NFS4ERR_DENIED;
3852out_overflow:
3853 print_overflow_msg(__func__, xdr);
3854 return -EIO;
3683} 3855}
3684 3856
3685static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 3857static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res)
3686{ 3858{
3687 __be32 *p;
3688 int status; 3859 int status;
3689 3860
3690 status = decode_op_hdr(xdr, OP_LOCK); 3861 status = decode_op_hdr(xdr, OP_LOCK);
3691 if (status == -EIO) 3862 if (status == -EIO)
3692 goto out; 3863 goto out;
3693 if (status == 0) { 3864 if (status == 0) {
3694 READ_BUF(NFS4_STATEID_SIZE); 3865 status = decode_stateid(xdr, &res->stateid);
3695 COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 3866 if (unlikely(status))
3867 goto out;
3696 } else if (status == -NFS4ERR_DENIED) 3868 } else if (status == -NFS4ERR_DENIED)
3697 status = decode_lock_denied(xdr, NULL); 3869 status = decode_lock_denied(xdr, NULL);
3698 if (res->open_seqid != NULL) 3870 if (res->open_seqid != NULL)
@@ -3713,16 +3885,13 @@ static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res)
3713 3885
3714static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 3886static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
3715{ 3887{
3716 __be32 *p;
3717 int status; 3888 int status;
3718 3889
3719 status = decode_op_hdr(xdr, OP_LOCKU); 3890 status = decode_op_hdr(xdr, OP_LOCKU);
3720 if (status != -EIO) 3891 if (status != -EIO)
3721 nfs_increment_lock_seqid(status, res->seqid); 3892 nfs_increment_lock_seqid(status, res->seqid);
3722 if (status == 0) { 3893 if (status == 0)
3723 READ_BUF(NFS4_STATEID_SIZE); 3894 status = decode_stateid(xdr, &res->stateid);
3724 COPYMEM(res->stateid.data, NFS4_STATEID_SIZE);
3725 }
3726 return status; 3895 return status;
3727} 3896}
3728 3897
@@ -3737,34 +3906,46 @@ static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
3737 __be32 *p; 3906 __be32 *p;
3738 uint32_t limit_type, nblocks, blocksize; 3907 uint32_t limit_type, nblocks, blocksize;
3739 3908
3740 READ_BUF(12); 3909 p = xdr_inline_decode(xdr, 12);
3741 READ32(limit_type); 3910 if (unlikely(!p))
3911 goto out_overflow;
3912 limit_type = be32_to_cpup(p++);
3742 switch (limit_type) { 3913 switch (limit_type) {
3743 case 1: 3914 case 1:
3744 READ64(*maxsize); 3915 xdr_decode_hyper(p, maxsize);
3745 break; 3916 break;
3746 case 2: 3917 case 2:
3747 READ32(nblocks); 3918 nblocks = be32_to_cpup(p++);
3748 READ32(blocksize); 3919 blocksize = be32_to_cpup(p);
3749 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 3920 *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
3750 } 3921 }
3751 return 0; 3922 return 0;
3923out_overflow:
3924 print_overflow_msg(__func__, xdr);
3925 return -EIO;
3752} 3926}
3753 3927
3754static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 3928static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
3755{ 3929{
3756 __be32 *p; 3930 __be32 *p;
3757 uint32_t delegation_type; 3931 uint32_t delegation_type;
3932 int status;
3758 3933
3759 READ_BUF(4); 3934 p = xdr_inline_decode(xdr, 4);
3760 READ32(delegation_type); 3935 if (unlikely(!p))
3936 goto out_overflow;
3937 delegation_type = be32_to_cpup(p);
3761 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 3938 if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
3762 res->delegation_type = 0; 3939 res->delegation_type = 0;
3763 return 0; 3940 return 0;
3764 } 3941 }
3765 READ_BUF(NFS4_STATEID_SIZE+4); 3942 status = decode_stateid(xdr, &res->delegation);
3766 COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 3943 if (unlikely(status))
3767 READ32(res->do_recall); 3944 return status;
3945 p = xdr_inline_decode(xdr, 4);
3946 if (unlikely(!p))
3947 goto out_overflow;
3948 res->do_recall = be32_to_cpup(p);
3768 3949
3769 switch (delegation_type) { 3950 switch (delegation_type) {
3770 case NFS4_OPEN_DELEGATE_READ: 3951 case NFS4_OPEN_DELEGATE_READ:
@@ -3776,6 +3957,9 @@ static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
3776 return -EIO; 3957 return -EIO;
3777 } 3958 }
3778 return decode_ace(xdr, NULL, res->server->nfs_client); 3959 return decode_ace(xdr, NULL, res->server->nfs_client);
3960out_overflow:
3961 print_overflow_msg(__func__, xdr);
3962 return -EIO;
3779} 3963}
3780 3964
3781static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 3965static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
@@ -3787,23 +3971,27 @@ static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
3787 status = decode_op_hdr(xdr, OP_OPEN); 3971 status = decode_op_hdr(xdr, OP_OPEN);
3788 if (status != -EIO) 3972 if (status != -EIO)
3789 nfs_increment_open_seqid(status, res->seqid); 3973 nfs_increment_open_seqid(status, res->seqid);
3790 if (status) 3974 if (!status)
3975 status = decode_stateid(xdr, &res->stateid);
3976 if (unlikely(status))
3791 return status; 3977 return status;
3792 READ_BUF(NFS4_STATEID_SIZE);
3793 COPYMEM(res->stateid.data, NFS4_STATEID_SIZE);
3794 3978
3795 decode_change_info(xdr, &res->cinfo); 3979 decode_change_info(xdr, &res->cinfo);
3796 3980
3797 READ_BUF(8); 3981 p = xdr_inline_decode(xdr, 8);
3798 READ32(res->rflags); 3982 if (unlikely(!p))
3799 READ32(bmlen); 3983 goto out_overflow;
3984 res->rflags = be32_to_cpup(p++);
3985 bmlen = be32_to_cpup(p);
3800 if (bmlen > 10) 3986 if (bmlen > 10)
3801 goto xdr_error; 3987 goto xdr_error;
3802 3988
3803 READ_BUF(bmlen << 2); 3989 p = xdr_inline_decode(xdr, bmlen << 2);
3990 if (unlikely(!p))
3991 goto out_overflow;
3804 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3992 savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
3805 for (i = 0; i < savewords; ++i) 3993 for (i = 0; i < savewords; ++i)
3806 READ32(res->attrset[i]); 3994 res->attrset[i] = be32_to_cpup(p++);
3807 for (; i < NFS4_BITMAP_SIZE; i++) 3995 for (; i < NFS4_BITMAP_SIZE; i++)
3808 res->attrset[i] = 0; 3996 res->attrset[i] = 0;
3809 3997
@@ -3811,36 +3999,33 @@ static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
3811xdr_error: 3999xdr_error:
3812 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 4000 dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen);
3813 return -EIO; 4001 return -EIO;
4002out_overflow:
4003 print_overflow_msg(__func__, xdr);
4004 return -EIO;
3814} 4005}
3815 4006
3816static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 4007static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
3817{ 4008{
3818 __be32 *p;
3819 int status; 4009 int status;
3820 4010
3821 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4011 status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
3822 if (status != -EIO) 4012 if (status != -EIO)
3823 nfs_increment_open_seqid(status, res->seqid); 4013 nfs_increment_open_seqid(status, res->seqid);
3824 if (status) 4014 if (!status)
3825 return status; 4015 status = decode_stateid(xdr, &res->stateid);
3826 READ_BUF(NFS4_STATEID_SIZE); 4016 return status;
3827 COPYMEM(res->stateid.data, NFS4_STATEID_SIZE);
3828 return 0;
3829} 4017}
3830 4018
3831static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 4019static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
3832{ 4020{
3833 __be32 *p;
3834 int status; 4021 int status;
3835 4022
3836 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4023 status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE);
3837 if (status != -EIO) 4024 if (status != -EIO)
3838 nfs_increment_open_seqid(status, res->seqid); 4025 nfs_increment_open_seqid(status, res->seqid);
3839 if (status) 4026 if (!status)
3840 return status; 4027 status = decode_stateid(xdr, &res->stateid);
3841 READ_BUF(NFS4_STATEID_SIZE); 4028 return status;
3842 COPYMEM(res->stateid.data, NFS4_STATEID_SIZE);
3843 return 0;
3844} 4029}
3845 4030
3846static int decode_putfh(struct xdr_stream *xdr) 4031static int decode_putfh(struct xdr_stream *xdr)
@@ -3863,9 +4048,11 @@ static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_
3863 status = decode_op_hdr(xdr, OP_READ); 4048 status = decode_op_hdr(xdr, OP_READ);
3864 if (status) 4049 if (status)
3865 return status; 4050 return status;
3866 READ_BUF(8); 4051 p = xdr_inline_decode(xdr, 8);
3867 READ32(eof); 4052 if (unlikely(!p))
3868 READ32(count); 4053 goto out_overflow;
4054 eof = be32_to_cpup(p++);
4055 count = be32_to_cpup(p);
3869 hdrlen = (u8 *) p - (u8 *) iov->iov_base; 4056 hdrlen = (u8 *) p - (u8 *) iov->iov_base;
3870 recvd = req->rq_rcv_buf.len - hdrlen; 4057 recvd = req->rq_rcv_buf.len - hdrlen;
3871 if (count > recvd) { 4058 if (count > recvd) {
@@ -3878,6 +4065,9 @@ static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_
3878 res->eof = eof; 4065 res->eof = eof;
3879 res->count = count; 4066 res->count = count;
3880 return 0; 4067 return 0;
4068out_overflow:
4069 print_overflow_msg(__func__, xdr);
4070 return -EIO;
3881} 4071}
3882 4072
3883static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 4073static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir)
@@ -3892,17 +4082,17 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n
3892 int status; 4082 int status;
3893 4083
3894 status = decode_op_hdr(xdr, OP_READDIR); 4084 status = decode_op_hdr(xdr, OP_READDIR);
3895 if (status) 4085 if (!status)
4086 status = decode_verifier(xdr, readdir->verifier.data);
4087 if (unlikely(status))
3896 return status; 4088 return status;
3897 READ_BUF(8);
3898 COPYMEM(readdir->verifier.data, 8);
3899 dprintk("%s: verifier = %08x:%08x\n", 4089 dprintk("%s: verifier = %08x:%08x\n",
3900 __func__, 4090 __func__,
3901 ((u32 *)readdir->verifier.data)[0], 4091 ((u32 *)readdir->verifier.data)[0],
3902 ((u32 *)readdir->verifier.data)[1]); 4092 ((u32 *)readdir->verifier.data)[1]);
3903 4093
3904 4094
3905 hdrlen = (char *) p - (char *) iov->iov_base; 4095 hdrlen = (char *) xdr->p - (char *) iov->iov_base;
3906 recvd = rcvbuf->len - hdrlen; 4096 recvd = rcvbuf->len - hdrlen;
3907 if (pglen > recvd) 4097 if (pglen > recvd)
3908 pglen = recvd; 4098 pglen = recvd;
@@ -3990,8 +4180,10 @@ static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
3990 return status; 4180 return status;
3991 4181
3992 /* Convert length of symlink */ 4182 /* Convert length of symlink */
3993 READ_BUF(4); 4183 p = xdr_inline_decode(xdr, 4);
3994 READ32(len); 4184 if (unlikely(!p))
4185 goto out_overflow;
4186 len = be32_to_cpup(p);
3995 if (len >= rcvbuf->page_len || len <= 0) { 4187 if (len >= rcvbuf->page_len || len <= 0) {
3996 dprintk("nfs: server returned giant symlink!\n"); 4188 dprintk("nfs: server returned giant symlink!\n");
3997 return -ENAMETOOLONG; 4189 return -ENAMETOOLONG;
@@ -4015,6 +4207,9 @@ static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req)
4015 kaddr[len+rcvbuf->page_base] = '\0'; 4207 kaddr[len+rcvbuf->page_base] = '\0';
4016 kunmap_atomic(kaddr, KM_USER0); 4208 kunmap_atomic(kaddr, KM_USER0);
4017 return 0; 4209 return 0;
4210out_overflow:
4211 print_overflow_msg(__func__, xdr);
4212 return -EIO;
4018} 4213}
4019 4214
4020static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 4215static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
@@ -4112,10 +4307,16 @@ static int decode_setattr(struct xdr_stream *xdr)
4112 status = decode_op_hdr(xdr, OP_SETATTR); 4307 status = decode_op_hdr(xdr, OP_SETATTR);
4113 if (status) 4308 if (status)
4114 return status; 4309 return status;
4115 READ_BUF(4); 4310 p = xdr_inline_decode(xdr, 4);
4116 READ32(bmlen); 4311 if (unlikely(!p))
4117 READ_BUF(bmlen << 2); 4312 goto out_overflow;
4118 return 0; 4313 bmlen = be32_to_cpup(p);
4314 p = xdr_inline_decode(xdr, bmlen << 2);
4315 if (likely(p))
4316 return 0;
4317out_overflow:
4318 print_overflow_msg(__func__, xdr);
4319 return -EIO;
4119} 4320}
4120 4321
4121static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 4322static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp)
@@ -4124,35 +4325,50 @@ static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp)
4124 uint32_t opnum; 4325 uint32_t opnum;
4125 int32_t nfserr; 4326 int32_t nfserr;
4126 4327
4127 READ_BUF(8); 4328 p = xdr_inline_decode(xdr, 8);
4128 READ32(opnum); 4329 if (unlikely(!p))
4330 goto out_overflow;
4331 opnum = be32_to_cpup(p++);
4129 if (opnum != OP_SETCLIENTID) { 4332 if (opnum != OP_SETCLIENTID) {
4130 dprintk("nfs: decode_setclientid: Server returned operation" 4333 dprintk("nfs: decode_setclientid: Server returned operation"
4131 " %d\n", opnum); 4334 " %d\n", opnum);
4132 return -EIO; 4335 return -EIO;
4133 } 4336 }
4134 READ32(nfserr); 4337 nfserr = be32_to_cpup(p);
4135 if (nfserr == NFS_OK) { 4338 if (nfserr == NFS_OK) {
4136 READ_BUF(8 + NFS4_VERIFIER_SIZE); 4339 p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE);
4137 READ64(clp->cl_clientid); 4340 if (unlikely(!p))
4138 COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 4341 goto out_overflow;
4342 p = xdr_decode_hyper(p, &clp->cl_clientid);
4343 memcpy(clp->cl_confirm.data, p, NFS4_VERIFIER_SIZE);
4139 } else if (nfserr == NFSERR_CLID_INUSE) { 4344 } else if (nfserr == NFSERR_CLID_INUSE) {
4140 uint32_t len; 4345 uint32_t len;
4141 4346
4142 /* skip netid string */ 4347 /* skip netid string */
4143 READ_BUF(4); 4348 p = xdr_inline_decode(xdr, 4);
4144 READ32(len); 4349 if (unlikely(!p))
4145 READ_BUF(len); 4350 goto out_overflow;
4351 len = be32_to_cpup(p);
4352 p = xdr_inline_decode(xdr, len);
4353 if (unlikely(!p))
4354 goto out_overflow;
4146 4355
4147 /* skip uaddr string */ 4356 /* skip uaddr string */
4148 READ_BUF(4); 4357 p = xdr_inline_decode(xdr, 4);
4149 READ32(len); 4358 if (unlikely(!p))
4150 READ_BUF(len); 4359 goto out_overflow;
4360 len = be32_to_cpup(p);
4361 p = xdr_inline_decode(xdr, len);
4362 if (unlikely(!p))
4363 goto out_overflow;
4151 return -NFSERR_CLID_INUSE; 4364 return -NFSERR_CLID_INUSE;
4152 } else 4365 } else
4153 return nfs4_stat_to_errno(nfserr); 4366 return nfs4_stat_to_errno(nfserr);
4154 4367
4155 return 0; 4368 return 0;
4369out_overflow:
4370 print_overflow_msg(__func__, xdr);
4371 return -EIO;
4156} 4372}
4157 4373
4158static int decode_setclientid_confirm(struct xdr_stream *xdr) 4374static int decode_setclientid_confirm(struct xdr_stream *xdr)
@@ -4169,11 +4385,16 @@ static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
4169 if (status) 4385 if (status)
4170 return status; 4386 return status;
4171 4387
4172 READ_BUF(16); 4388 p = xdr_inline_decode(xdr, 16);
4173 READ32(res->count); 4389 if (unlikely(!p))
4174 READ32(res->verf->committed); 4390 goto out_overflow;
4175 COPYMEM(res->verf->verifier, 8); 4391 res->count = be32_to_cpup(p++);
4392 res->verf->committed = be32_to_cpup(p++);
4393 memcpy(res->verf->verifier, p, 8);
4176 return 0; 4394 return 0;
4395out_overflow:
4396 print_overflow_msg(__func__, xdr);
4397 return -EIO;
4177} 4398}
4178 4399
4179static int decode_delegreturn(struct xdr_stream *xdr) 4400static int decode_delegreturn(struct xdr_stream *xdr)
@@ -4187,6 +4408,7 @@ static int decode_exchange_id(struct xdr_stream *xdr,
4187{ 4408{
4188 __be32 *p; 4409 __be32 *p;
4189 uint32_t dummy; 4410 uint32_t dummy;
4411 char *dummy_str;
4190 int status; 4412 int status;
4191 struct nfs_client *clp = res->client; 4413 struct nfs_client *clp = res->client;
4192 4414
@@ -4194,36 +4416,45 @@ static int decode_exchange_id(struct xdr_stream *xdr,
4194 if (status) 4416 if (status)
4195 return status; 4417 return status;
4196 4418
4197 READ_BUF(8); 4419 p = xdr_inline_decode(xdr, 8);
4198 READ64(clp->cl_ex_clid); 4420 if (unlikely(!p))
4199 READ_BUF(12); 4421 goto out_overflow;
4200 READ32(clp->cl_seqid); 4422 xdr_decode_hyper(p, &clp->cl_ex_clid);
4201 READ32(clp->cl_exchange_flags); 4423 p = xdr_inline_decode(xdr, 12);
4424 if (unlikely(!p))
4425 goto out_overflow;
4426 clp->cl_seqid = be32_to_cpup(p++);
4427 clp->cl_exchange_flags = be32_to_cpup(p++);
4202 4428
4203 /* We ask for SP4_NONE */ 4429 /* We ask for SP4_NONE */
4204 READ32(dummy); 4430 dummy = be32_to_cpup(p);
4205 if (dummy != SP4_NONE) 4431 if (dummy != SP4_NONE)
4206 return -EIO; 4432 return -EIO;
4207 4433
4208 /* Throw away minor_id */ 4434 /* Throw away minor_id */
4209 READ_BUF(8); 4435 p = xdr_inline_decode(xdr, 8);
4436 if (unlikely(!p))
4437 goto out_overflow;
4210 4438
4211 /* Throw away Major id */ 4439 /* Throw away Major id */
4212 READ_BUF(4); 4440 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4213 READ32(dummy); 4441 if (unlikely(status))
4214 READ_BUF(dummy); 4442 return status;
4215 4443
4216 /* Throw away server_scope */ 4444 /* Throw away server_scope */
4217 READ_BUF(4); 4445 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4218 READ32(dummy); 4446 if (unlikely(status))
4219 READ_BUF(dummy); 4447 return status;
4220 4448
4221 /* Throw away Implementation id array */ 4449 /* Throw away Implementation id array */
4222 READ_BUF(4); 4450 status = decode_opaque_inline(xdr, &dummy, &dummy_str);
4223 READ32(dummy); 4451 if (unlikely(status))
4224 READ_BUF(dummy); 4452 return status;
4225 4453
4226 return 0; 4454 return 0;
4455out_overflow:
4456 print_overflow_msg(__func__, xdr);
4457 return -EIO;
4227} 4458}
4228 4459
4229static int decode_chan_attrs(struct xdr_stream *xdr, 4460static int decode_chan_attrs(struct xdr_stream *xdr,
@@ -4232,22 +4463,35 @@ static int decode_chan_attrs(struct xdr_stream *xdr,
4232 __be32 *p; 4463 __be32 *p;
4233 u32 nr_attrs; 4464 u32 nr_attrs;
4234 4465
4235 READ_BUF(28); 4466 p = xdr_inline_decode(xdr, 28);
4236 READ32(attrs->headerpadsz); 4467 if (unlikely(!p))
4237 READ32(attrs->max_rqst_sz); 4468 goto out_overflow;
4238 READ32(attrs->max_resp_sz); 4469 attrs->headerpadsz = be32_to_cpup(p++);
4239 READ32(attrs->max_resp_sz_cached); 4470 attrs->max_rqst_sz = be32_to_cpup(p++);
4240 READ32(attrs->max_ops); 4471 attrs->max_resp_sz = be32_to_cpup(p++);
4241 READ32(attrs->max_reqs); 4472 attrs->max_resp_sz_cached = be32_to_cpup(p++);
4242 READ32(nr_attrs); 4473 attrs->max_ops = be32_to_cpup(p++);
4474 attrs->max_reqs = be32_to_cpup(p++);
4475 nr_attrs = be32_to_cpup(p);
4243 if (unlikely(nr_attrs > 1)) { 4476 if (unlikely(nr_attrs > 1)) {
4244 printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4477 printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n",
4245 __func__, nr_attrs); 4478 __func__, nr_attrs);
4246 return -EINVAL; 4479 return -EINVAL;
4247 } 4480 }
4248 if (nr_attrs == 1) 4481 if (nr_attrs == 1) {
4249 READ_BUF(4); /* skip rdma_attrs */ 4482 p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */
4483 if (unlikely(!p))
4484 goto out_overflow;
4485 }
4250 return 0; 4486 return 0;
4487out_overflow:
4488 print_overflow_msg(__func__, xdr);
4489 return -EIO;
4490}
4491
4492static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid)
4493{
4494 return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN);
4251} 4495}
4252 4496
4253static int decode_create_session(struct xdr_stream *xdr, 4497static int decode_create_session(struct xdr_stream *xdr,
@@ -4259,24 +4503,26 @@ static int decode_create_session(struct xdr_stream *xdr,
4259 struct nfs4_session *session = clp->cl_session; 4503 struct nfs4_session *session = clp->cl_session;
4260 4504
4261 status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4505 status = decode_op_hdr(xdr, OP_CREATE_SESSION);
4262 4506 if (!status)
4263 if (status) 4507 status = decode_sessionid(xdr, &session->sess_id);
4508 if (unlikely(status))
4264 return status; 4509 return status;
4265 4510
4266 /* sessionid */
4267 READ_BUF(NFS4_MAX_SESSIONID_LEN);
4268 COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN);
4269
4270 /* seqid, flags */ 4511 /* seqid, flags */
4271 READ_BUF(8); 4512 p = xdr_inline_decode(xdr, 8);
4272 READ32(clp->cl_seqid); 4513 if (unlikely(!p))
4273 READ32(session->flags); 4514 goto out_overflow;
4515 clp->cl_seqid = be32_to_cpup(p++);
4516 session->flags = be32_to_cpup(p);
4274 4517
4275 /* Channel attributes */ 4518 /* Channel attributes */
4276 status = decode_chan_attrs(xdr, &session->fc_attrs); 4519 status = decode_chan_attrs(xdr, &session->fc_attrs);
4277 if (!status) 4520 if (!status)
4278 status = decode_chan_attrs(xdr, &session->bc_attrs); 4521 status = decode_chan_attrs(xdr, &session->bc_attrs);
4279 return status; 4522 return status;
4523out_overflow:
4524 print_overflow_msg(__func__, xdr);
4525 return -EIO;
4280} 4526}
4281 4527
4282static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 4528static int decode_destroy_session(struct xdr_stream *xdr, void *dummy)
@@ -4300,7 +4546,9 @@ static int decode_sequence(struct xdr_stream *xdr,
4300 return 0; 4546 return 0;
4301 4547
4302 status = decode_op_hdr(xdr, OP_SEQUENCE); 4548 status = decode_op_hdr(xdr, OP_SEQUENCE);
4303 if (status) 4549 if (!status)
4550 status = decode_sessionid(xdr, &id);
4551 if (unlikely(status))
4304 goto out_err; 4552 goto out_err;
4305 4553
4306 /* 4554 /*
@@ -4309,36 +4557,43 @@ static int decode_sequence(struct xdr_stream *xdr,
4309 */ 4557 */
4310 status = -ESERVERFAULT; 4558 status = -ESERVERFAULT;
4311 4559
4312 slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid];
4313 READ_BUF(NFS4_MAX_SESSIONID_LEN + 20);
4314 COPYMEM(id.data, NFS4_MAX_SESSIONID_LEN);
4315 if (memcmp(id.data, res->sr_session->sess_id.data, 4560 if (memcmp(id.data, res->sr_session->sess_id.data,
4316 NFS4_MAX_SESSIONID_LEN)) { 4561 NFS4_MAX_SESSIONID_LEN)) {
4317 dprintk("%s Invalid session id\n", __func__); 4562 dprintk("%s Invalid session id\n", __func__);
4318 goto out_err; 4563 goto out_err;
4319 } 4564 }
4565
4566 p = xdr_inline_decode(xdr, 20);
4567 if (unlikely(!p))
4568 goto out_overflow;
4569
4320 /* seqid */ 4570 /* seqid */
4321 READ32(dummy); 4571 slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid];
4572 dummy = be32_to_cpup(p++);
4322 if (dummy != slot->seq_nr) { 4573 if (dummy != slot->seq_nr) {
4323 dprintk("%s Invalid sequence number\n", __func__); 4574 dprintk("%s Invalid sequence number\n", __func__);
4324 goto out_err; 4575 goto out_err;
4325 } 4576 }
4326 /* slot id */ 4577 /* slot id */
4327 READ32(dummy); 4578 dummy = be32_to_cpup(p++);
4328 if (dummy != res->sr_slotid) { 4579 if (dummy != res->sr_slotid) {
4329 dprintk("%s Invalid slot id\n", __func__); 4580 dprintk("%s Invalid slot id\n", __func__);
4330 goto out_err; 4581 goto out_err;
4331 } 4582 }
4332 /* highest slot id - currently not processed */ 4583 /* highest slot id - currently not processed */
4333 READ32(dummy); 4584 dummy = be32_to_cpup(p++);
4334 /* target highest slot id - currently not processed */ 4585 /* target highest slot id - currently not processed */
4335 READ32(dummy); 4586 dummy = be32_to_cpup(p++);
4336 /* result flags - currently not processed */ 4587 /* result flags - currently not processed */
4337 READ32(dummy); 4588 dummy = be32_to_cpup(p);
4338 status = 0; 4589 status = 0;
4339out_err: 4590out_err:
4340 res->sr_status = status; 4591 res->sr_status = status;
4341 return status; 4592 return status;
4593out_overflow:
4594 print_overflow_msg(__func__, xdr);
4595 status = -EIO;
4596 goto out_err;
4342#else /* CONFIG_NFS_V4_1 */ 4597#else /* CONFIG_NFS_V4_1 */
4343 return 0; 4598 return 0;
4344#endif /* CONFIG_NFS_V4_1 */ 4599#endif /* CONFIG_NFS_V4_1 */
@@ -4370,7 +4625,8 @@ static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct
4370 status = decode_open_downgrade(&xdr, res); 4625 status = decode_open_downgrade(&xdr, res);
4371 if (status != 0) 4626 if (status != 0)
4372 goto out; 4627 goto out;
4373 decode_getfattr(&xdr, res->fattr, res->server); 4628 decode_getfattr(&xdr, res->fattr, res->server,
4629 !RPC_IS_ASYNC(rqstp->rq_task));
4374out: 4630out:
4375 return status; 4631 return status;
4376} 4632}
@@ -4397,7 +4653,8 @@ static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_ac
4397 status = decode_access(&xdr, res); 4653 status = decode_access(&xdr, res);
4398 if (status != 0) 4654 if (status != 0)
4399 goto out; 4655 goto out;
4400 decode_getfattr(&xdr, res->fattr, res->server); 4656 decode_getfattr(&xdr, res->fattr, res->server,
4657 !RPC_IS_ASYNC(rqstp->rq_task));
4401out: 4658out:
4402 return status; 4659 return status;
4403} 4660}
@@ -4424,7 +4681,8 @@ static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lo
4424 goto out; 4681 goto out;
4425 if ((status = decode_getfh(&xdr, res->fh)) != 0) 4682 if ((status = decode_getfh(&xdr, res->fh)) != 0)
4426 goto out; 4683 goto out;
4427 status = decode_getfattr(&xdr, res->fattr, res->server); 4684 status = decode_getfattr(&xdr, res->fattr, res->server
4685 ,!RPC_IS_ASYNC(rqstp->rq_task));
4428out: 4686out:
4429 return status; 4687 return status;
4430} 4688}
@@ -4448,7 +4706,8 @@ static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nf
4448 if ((status = decode_putrootfh(&xdr)) != 0) 4706 if ((status = decode_putrootfh(&xdr)) != 0)
4449 goto out; 4707 goto out;
4450 if ((status = decode_getfh(&xdr, res->fh)) == 0) 4708 if ((status = decode_getfh(&xdr, res->fh)) == 0)
4451 status = decode_getfattr(&xdr, res->fattr, res->server); 4709 status = decode_getfattr(&xdr, res->fattr, res->server,
4710 !RPC_IS_ASYNC(rqstp->rq_task));
4452out: 4711out:
4453 return status; 4712 return status;
4454} 4713}
@@ -4473,7 +4732,8 @@ static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_rem
4473 goto out; 4732 goto out;
4474 if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 4733 if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
4475 goto out; 4734 goto out;
4476 decode_getfattr(&xdr, &res->dir_attr, res->server); 4735 decode_getfattr(&xdr, &res->dir_attr, res->server,
4736 !RPC_IS_ASYNC(rqstp->rq_task));
4477out: 4737out:
4478 return status; 4738 return status;
4479} 4739}
@@ -4503,11 +4763,13 @@ static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_re
4503 if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 4763 if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
4504 goto out; 4764 goto out;
4505 /* Current FH is target directory */ 4765 /* Current FH is target directory */
4506 if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 4766 if (decode_getfattr(&xdr, res->new_fattr, res->server,
4767 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
4507 goto out; 4768 goto out;
4508 if ((status = decode_restorefh(&xdr)) != 0) 4769 if ((status = decode_restorefh(&xdr)) != 0)
4509 goto out; 4770 goto out;
4510 decode_getfattr(&xdr, res->old_fattr, res->server); 4771 decode_getfattr(&xdr, res->old_fattr, res->server,
4772 !RPC_IS_ASYNC(rqstp->rq_task));
4511out: 4773out:
4512 return status; 4774 return status;
4513} 4775}
@@ -4540,11 +4802,13 @@ static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link
4540 * Note order: OP_LINK leaves the directory as the current 4802 * Note order: OP_LINK leaves the directory as the current
4541 * filehandle. 4803 * filehandle.
4542 */ 4804 */
4543 if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 4805 if (decode_getfattr(&xdr, res->dir_attr, res->server,
4806 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
4544 goto out; 4807 goto out;
4545 if ((status = decode_restorefh(&xdr)) != 0) 4808 if ((status = decode_restorefh(&xdr)) != 0)
4546 goto out; 4809 goto out;
4547 decode_getfattr(&xdr, res->fattr, res->server); 4810 decode_getfattr(&xdr, res->fattr, res->server,
4811 !RPC_IS_ASYNC(rqstp->rq_task));
4548out: 4812out:
4549 return status; 4813 return status;
4550} 4814}
@@ -4573,11 +4837,13 @@ static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_cr
4573 goto out; 4837 goto out;
4574 if ((status = decode_getfh(&xdr, res->fh)) != 0) 4838 if ((status = decode_getfh(&xdr, res->fh)) != 0)
4575 goto out; 4839 goto out;
4576 if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 4840 if (decode_getfattr(&xdr, res->fattr, res->server,
4841 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
4577 goto out; 4842 goto out;
4578 if ((status = decode_restorefh(&xdr)) != 0) 4843 if ((status = decode_restorefh(&xdr)) != 0)
4579 goto out; 4844 goto out;
4580 decode_getfattr(&xdr, res->dir_fattr, res->server); 4845 decode_getfattr(&xdr, res->dir_fattr, res->server,
4846 !RPC_IS_ASYNC(rqstp->rq_task));
4581out: 4847out:
4582 return status; 4848 return status;
4583} 4849}
@@ -4609,7 +4875,8 @@ static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_g
4609 status = decode_putfh(&xdr); 4875 status = decode_putfh(&xdr);
4610 if (status) 4876 if (status)
4611 goto out; 4877 goto out;
4612 status = decode_getfattr(&xdr, res->fattr, res->server); 4878 status = decode_getfattr(&xdr, res->fattr, res->server,
4879 !RPC_IS_ASYNC(rqstp->rq_task));
4613out: 4880out:
4614 return status; 4881 return status;
4615} 4882}
@@ -4716,7 +4983,8 @@ static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_clos
4716 * an ESTALE error. Shouldn't be a problem, 4983 * an ESTALE error. Shouldn't be a problem,
4717 * though, since fattr->valid will remain unset. 4984 * though, since fattr->valid will remain unset.
4718 */ 4985 */
4719 decode_getfattr(&xdr, res->fattr, res->server); 4986 decode_getfattr(&xdr, res->fattr, res->server,
4987 !RPC_IS_ASYNC(rqstp->rq_task));
4720out: 4988out:
4721 return status; 4989 return status;
4722} 4990}
@@ -4748,11 +5016,13 @@ static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openr
4748 goto out; 5016 goto out;
4749 if (decode_getfh(&xdr, &res->fh) != 0) 5017 if (decode_getfh(&xdr, &res->fh) != 0)
4750 goto out; 5018 goto out;
4751 if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 5019 if (decode_getfattr(&xdr, res->f_attr, res->server,
5020 !RPC_IS_ASYNC(rqstp->rq_task)) != 0)
4752 goto out; 5021 goto out;
4753 if (decode_restorefh(&xdr) != 0) 5022 if (decode_restorefh(&xdr) != 0)
4754 goto out; 5023 goto out;
4755 decode_getfattr(&xdr, res->dir_attr, res->server); 5024 decode_getfattr(&xdr, res->dir_attr, res->server,
5025 !RPC_IS_ASYNC(rqstp->rq_task));
4756out: 5026out:
4757 return status; 5027 return status;
4758} 5028}
@@ -4800,7 +5070,8 @@ static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nf
4800 status = decode_open(&xdr, res); 5070 status = decode_open(&xdr, res);
4801 if (status) 5071 if (status)
4802 goto out; 5072 goto out;
4803 decode_getfattr(&xdr, res->f_attr, res->server); 5073 decode_getfattr(&xdr, res->f_attr, res->server,
5074 !RPC_IS_ASYNC(rqstp->rq_task));
4804out: 5075out:
4805 return status; 5076 return status;
4806} 5077}
@@ -4827,7 +5098,8 @@ static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_se
4827 status = decode_setattr(&xdr); 5098 status = decode_setattr(&xdr);
4828 if (status) 5099 if (status)
4829 goto out; 5100 goto out;
4830 decode_getfattr(&xdr, res->fattr, res->server); 5101 decode_getfattr(&xdr, res->fattr, res->server,
5102 !RPC_IS_ASYNC(rqstp->rq_task));
4831out: 5103out:
4832 return status; 5104 return status;
4833} 5105}
@@ -5001,7 +5273,8 @@ static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writ
5001 status = decode_write(&xdr, res); 5273 status = decode_write(&xdr, res);
5002 if (status) 5274 if (status)
5003 goto out; 5275 goto out;
5004 decode_getfattr(&xdr, res->fattr, res->server); 5276 decode_getfattr(&xdr, res->fattr, res->server,
5277 !RPC_IS_ASYNC(rqstp->rq_task));
5005 if (!status) 5278 if (!status)
5006 status = res->count; 5279 status = res->count;
5007out: 5280out:
@@ -5030,7 +5303,8 @@ static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_wri
5030 status = decode_commit(&xdr, res); 5303 status = decode_commit(&xdr, res);
5031 if (status) 5304 if (status)
5032 goto out; 5305 goto out;
5033 decode_getfattr(&xdr, res->fattr, res->server); 5306 decode_getfattr(&xdr, res->fattr, res->server,
5307 !RPC_IS_ASYNC(rqstp->rq_task));
5034out: 5308out:
5035 return status; 5309 return status;
5036} 5310}
@@ -5194,7 +5468,8 @@ static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nf
5194 if (status != 0) 5468 if (status != 0)
5195 goto out; 5469 goto out;
5196 status = decode_delegreturn(&xdr); 5470 status = decode_delegreturn(&xdr);
5197 decode_getfattr(&xdr, res->fattr, res->server); 5471 decode_getfattr(&xdr, res->fattr, res->server,
5472 !RPC_IS_ASYNC(rqstp->rq_task));
5198out: 5473out:
5199 return status; 5474 return status;
5200} 5475}
@@ -5222,7 +5497,8 @@ static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p,
5222 goto out; 5497 goto out;
5223 xdr_enter_page(&xdr, PAGE_SIZE); 5498 xdr_enter_page(&xdr, PAGE_SIZE);
5224 status = decode_getfattr(&xdr, &res->fs_locations->fattr, 5499 status = decode_getfattr(&xdr, &res->fs_locations->fattr,
5225 res->fs_locations->server); 5500 res->fs_locations->server,
5501 !RPC_IS_ASYNC(req->rq_task));
5226out: 5502out:
5227 return status; 5503 return status;
5228} 5504}
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 0b4cbdc60abd..867f70504531 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -73,7 +73,7 @@ enum {
73 Opt_cto, Opt_nocto, 73 Opt_cto, Opt_nocto,
74 Opt_ac, Opt_noac, 74 Opt_ac, Opt_noac,
75 Opt_lock, Opt_nolock, 75 Opt_lock, Opt_nolock,
76 Opt_v2, Opt_v3, 76 Opt_v2, Opt_v3, Opt_v4,
77 Opt_udp, Opt_tcp, Opt_rdma, 77 Opt_udp, Opt_tcp, Opt_rdma,
78 Opt_acl, Opt_noacl, 78 Opt_acl, Opt_noacl,
79 Opt_rdirplus, Opt_nordirplus, 79 Opt_rdirplus, Opt_nordirplus,
@@ -127,6 +127,7 @@ static const match_table_t nfs_mount_option_tokens = {
127 { Opt_nolock, "nolock" }, 127 { Opt_nolock, "nolock" },
128 { Opt_v2, "v2" }, 128 { Opt_v2, "v2" },
129 { Opt_v3, "v3" }, 129 { Opt_v3, "v3" },
130 { Opt_v4, "v4" },
130 { Opt_udp, "udp" }, 131 { Opt_udp, "udp" },
131 { Opt_tcp, "tcp" }, 132 { Opt_tcp, "tcp" },
132 { Opt_rdma, "rdma" }, 133 { Opt_rdma, "rdma" },
@@ -158,7 +159,7 @@ static const match_table_t nfs_mount_option_tokens = {
158 { Opt_mountvers, "mountvers=%s" }, 159 { Opt_mountvers, "mountvers=%s" },
159 { Opt_nfsvers, "nfsvers=%s" }, 160 { Opt_nfsvers, "nfsvers=%s" },
160 { Opt_nfsvers, "vers=%s" }, 161 { Opt_nfsvers, "vers=%s" },
161 { Opt_minorversion, "minorversion=%u" }, 162 { Opt_minorversion, "minorversion=%s" },
162 163
163 { Opt_sec, "sec=%s" }, 164 { Opt_sec, "sec=%s" },
164 { Opt_proto, "proto=%s" }, 165 { Opt_proto, "proto=%s" },
@@ -272,6 +273,10 @@ static const struct super_operations nfs_sops = {
272}; 273};
273 274
274#ifdef CONFIG_NFS_V4 275#ifdef CONFIG_NFS_V4
276static int nfs4_validate_text_mount_data(void *options,
277 struct nfs_parsed_mount_data *args, const char *dev_name);
278static int nfs4_try_mount(int flags, const char *dev_name,
279 struct nfs_parsed_mount_data *data, struct vfsmount *mnt);
275static int nfs4_get_sb(struct file_system_type *fs_type, 280static int nfs4_get_sb(struct file_system_type *fs_type,
276 int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt); 281 int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt);
277static int nfs4_remote_get_sb(struct file_system_type *fs_type, 282static int nfs4_remote_get_sb(struct file_system_type *fs_type,
@@ -742,127 +747,23 @@ static int nfs_verify_server_address(struct sockaddr *addr)
742 } 747 }
743 } 748 }
744 749
750 dfprintk(MOUNT, "NFS: Invalid IP address specified\n");
745 return 0; 751 return 0;
746} 752}
747 753
748static void nfs_parse_ipv4_address(char *string, size_t str_len,
749 struct sockaddr *sap, size_t *addr_len)
750{
751 struct sockaddr_in *sin = (struct sockaddr_in *)sap;
752 u8 *addr = (u8 *)&sin->sin_addr.s_addr;
753
754 if (str_len <= INET_ADDRSTRLEN) {
755 dfprintk(MOUNT, "NFS: parsing IPv4 address %*s\n",
756 (int)str_len, string);
757
758 sin->sin_family = AF_INET;
759 *addr_len = sizeof(*sin);
760 if (in4_pton(string, str_len, addr, '\0', NULL))
761 return;
762 }
763
764 sap->sa_family = AF_UNSPEC;
765 *addr_len = 0;
766}
767
768#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
769static int nfs_parse_ipv6_scope_id(const char *string, const size_t str_len,
770 const char *delim,
771 struct sockaddr_in6 *sin6)
772{
773 char *p;
774 size_t len;
775
776 if ((string + str_len) == delim)
777 return 1;
778
779 if (*delim != IPV6_SCOPE_DELIMITER)
780 return 0;
781
782 if (!(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL))
783 return 0;
784
785 len = (string + str_len) - delim - 1;
786 p = kstrndup(delim + 1, len, GFP_KERNEL);
787 if (p) {
788 unsigned long scope_id = 0;
789 struct net_device *dev;
790
791 dev = dev_get_by_name(&init_net, p);
792 if (dev != NULL) {
793 scope_id = dev->ifindex;
794 dev_put(dev);
795 } else {
796 if (strict_strtoul(p, 10, &scope_id) == 0) {
797 kfree(p);
798 return 0;
799 }
800 }
801
802 kfree(p);
803
804 sin6->sin6_scope_id = scope_id;
805 dfprintk(MOUNT, "NFS: IPv6 scope ID = %lu\n", scope_id);
806 return 1;
807 }
808
809 return 0;
810}
811
812static void nfs_parse_ipv6_address(char *string, size_t str_len,
813 struct sockaddr *sap, size_t *addr_len)
814{
815 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
816 u8 *addr = (u8 *)&sin6->sin6_addr.in6_u;
817 const char *delim;
818
819 if (str_len <= INET6_ADDRSTRLEN) {
820 dfprintk(MOUNT, "NFS: parsing IPv6 address %*s\n",
821 (int)str_len, string);
822
823 sin6->sin6_family = AF_INET6;
824 *addr_len = sizeof(*sin6);
825 if (in6_pton(string, str_len, addr,
826 IPV6_SCOPE_DELIMITER, &delim) != 0) {
827 if (nfs_parse_ipv6_scope_id(string, str_len,
828 delim, sin6) != 0)
829 return;
830 }
831 }
832
833 sap->sa_family = AF_UNSPEC;
834 *addr_len = 0;
835}
836#else
837static void nfs_parse_ipv6_address(char *string, size_t str_len,
838 struct sockaddr *sap, size_t *addr_len)
839{
840 sap->sa_family = AF_UNSPEC;
841 *addr_len = 0;
842}
843#endif
844
845/* 754/*
846 * Construct a sockaddr based on the contents of a string that contains 755 * Select between a default port value and a user-specified port value.
847 * an IP address in presentation format. 756 * If a zero value is set, then autobind will be used.
848 *
849 * If there is a problem constructing the new sockaddr, set the address
850 * family to AF_UNSPEC.
851 */ 757 */
852void nfs_parse_ip_address(char *string, size_t str_len, 758static void nfs_set_default_port(struct sockaddr *sap, const int parsed_port,
853 struct sockaddr *sap, size_t *addr_len) 759 const unsigned short default_port)
854{ 760{
855 unsigned int i, colons; 761 unsigned short port = default_port;
856 762
857 colons = 0; 763 if (parsed_port != NFS_UNSPEC_PORT)
858 for (i = 0; i < str_len; i++) 764 port = parsed_port;
859 if (string[i] == ':')
860 colons++;
861 765
862 if (colons >= 2) 766 rpc_set_port(sap, port);
863 nfs_parse_ipv6_address(string, str_len, sap, addr_len);
864 else
865 nfs_parse_ipv4_address(string, str_len, sap, addr_len);
866} 767}
867 768
868/* 769/*
@@ -904,8 +805,6 @@ static void nfs_set_mount_transport_protocol(struct nfs_parsed_mount_data *mnt)
904 805
905/* 806/*
906 * Parse the value of the 'sec=' option. 807 * Parse the value of the 'sec=' option.
907 *
908 * The flavor_len setting is for v4 mounts.
909 */ 808 */
910static int nfs_parse_security_flavors(char *value, 809static int nfs_parse_security_flavors(char *value,
911 struct nfs_parsed_mount_data *mnt) 810 struct nfs_parsed_mount_data *mnt)
@@ -916,53 +815,43 @@ static int nfs_parse_security_flavors(char *value,
916 815
917 switch (match_token(value, nfs_secflavor_tokens, args)) { 816 switch (match_token(value, nfs_secflavor_tokens, args)) {
918 case Opt_sec_none: 817 case Opt_sec_none:
919 mnt->auth_flavor_len = 0;
920 mnt->auth_flavors[0] = RPC_AUTH_NULL; 818 mnt->auth_flavors[0] = RPC_AUTH_NULL;
921 break; 819 break;
922 case Opt_sec_sys: 820 case Opt_sec_sys:
923 mnt->auth_flavor_len = 0;
924 mnt->auth_flavors[0] = RPC_AUTH_UNIX; 821 mnt->auth_flavors[0] = RPC_AUTH_UNIX;
925 break; 822 break;
926 case Opt_sec_krb5: 823 case Opt_sec_krb5:
927 mnt->auth_flavor_len = 1;
928 mnt->auth_flavors[0] = RPC_AUTH_GSS_KRB5; 824 mnt->auth_flavors[0] = RPC_AUTH_GSS_KRB5;
929 break; 825 break;
930 case Opt_sec_krb5i: 826 case Opt_sec_krb5i:
931 mnt->auth_flavor_len = 1;
932 mnt->auth_flavors[0] = RPC_AUTH_GSS_KRB5I; 827 mnt->auth_flavors[0] = RPC_AUTH_GSS_KRB5I;
933 break; 828 break;
934 case Opt_sec_krb5p: 829 case Opt_sec_krb5p:
935 mnt->auth_flavor_len = 1;
936 mnt->auth_flavors[0] = RPC_AUTH_GSS_KRB5P; 830 mnt->auth_flavors[0] = RPC_AUTH_GSS_KRB5P;
937 break; 831 break;
938 case Opt_sec_lkey: 832 case Opt_sec_lkey:
939 mnt->auth_flavor_len = 1;
940 mnt->auth_flavors[0] = RPC_AUTH_GSS_LKEY; 833 mnt->auth_flavors[0] = RPC_AUTH_GSS_LKEY;
941 break; 834 break;
942 case Opt_sec_lkeyi: 835 case Opt_sec_lkeyi:
943 mnt->auth_flavor_len = 1;
944 mnt->auth_flavors[0] = RPC_AUTH_GSS_LKEYI; 836 mnt->auth_flavors[0] = RPC_AUTH_GSS_LKEYI;
945 break; 837 break;
946 case Opt_sec_lkeyp: 838 case Opt_sec_lkeyp:
947 mnt->auth_flavor_len = 1;
948 mnt->auth_flavors[0] = RPC_AUTH_GSS_LKEYP; 839 mnt->auth_flavors[0] = RPC_AUTH_GSS_LKEYP;
949 break; 840 break;
950 case Opt_sec_spkm: 841 case Opt_sec_spkm:
951 mnt->auth_flavor_len = 1;
952 mnt->auth_flavors[0] = RPC_AUTH_GSS_SPKM; 842 mnt->auth_flavors[0] = RPC_AUTH_GSS_SPKM;
953 break; 843 break;
954 case Opt_sec_spkmi: 844 case Opt_sec_spkmi:
955 mnt->auth_flavor_len = 1;
956 mnt->auth_flavors[0] = RPC_AUTH_GSS_SPKMI; 845 mnt->auth_flavors[0] = RPC_AUTH_GSS_SPKMI;
957 break; 846 break;
958 case Opt_sec_spkmp: 847 case Opt_sec_spkmp:
959 mnt->auth_flavor_len = 1;
960 mnt->auth_flavors[0] = RPC_AUTH_GSS_SPKMP; 848 mnt->auth_flavors[0] = RPC_AUTH_GSS_SPKMP;
961 break; 849 break;
962 default: 850 default:
963 return 0; 851 return 0;
964 } 852 }
965 853
854 mnt->auth_flavor_len = 1;
966 return 1; 855 return 1;
967} 856}
968 857
@@ -1001,7 +890,6 @@ static int nfs_parse_mount_options(char *raw,
1001 while ((p = strsep(&raw, ",")) != NULL) { 890 while ((p = strsep(&raw, ",")) != NULL) {
1002 substring_t args[MAX_OPT_ARGS]; 891 substring_t args[MAX_OPT_ARGS];
1003 unsigned long option; 892 unsigned long option;
1004 int int_option;
1005 int token; 893 int token;
1006 894
1007 if (!*p) 895 if (!*p)
@@ -1047,10 +935,18 @@ static int nfs_parse_mount_options(char *raw,
1047 break; 935 break;
1048 case Opt_v2: 936 case Opt_v2:
1049 mnt->flags &= ~NFS_MOUNT_VER3; 937 mnt->flags &= ~NFS_MOUNT_VER3;
938 mnt->version = 2;
1050 break; 939 break;
1051 case Opt_v3: 940 case Opt_v3:
1052 mnt->flags |= NFS_MOUNT_VER3; 941 mnt->flags |= NFS_MOUNT_VER3;
942 mnt->version = 3;
1053 break; 943 break;
944#ifdef CONFIG_NFS_V4
945 case Opt_v4:
946 mnt->flags &= ~NFS_MOUNT_VER3;
947 mnt->version = 4;
948 break;
949#endif
1054 case Opt_udp: 950 case Opt_udp:
1055 mnt->flags &= ~NFS_MOUNT_TCP; 951 mnt->flags &= ~NFS_MOUNT_TCP;
1056 mnt->nfs_server.protocol = XPRT_TRANSPORT_UDP; 952 mnt->nfs_server.protocol = XPRT_TRANSPORT_UDP;
@@ -1264,20 +1160,33 @@ static int nfs_parse_mount_options(char *raw,
1264 switch (option) { 1160 switch (option) {
1265 case NFS2_VERSION: 1161 case NFS2_VERSION:
1266 mnt->flags &= ~NFS_MOUNT_VER3; 1162 mnt->flags &= ~NFS_MOUNT_VER3;
1163 mnt->version = 2;
1267 break; 1164 break;
1268 case NFS3_VERSION: 1165 case NFS3_VERSION:
1269 mnt->flags |= NFS_MOUNT_VER3; 1166 mnt->flags |= NFS_MOUNT_VER3;
1167 mnt->version = 3;
1270 break; 1168 break;
1169#ifdef CONFIG_NFS_V4
1170 case NFS4_VERSION:
1171 mnt->flags &= ~NFS_MOUNT_VER3;
1172 mnt->version = 4;
1173 break;
1174#endif
1271 default: 1175 default:
1272 goto out_invalid_value; 1176 goto out_invalid_value;
1273 } 1177 }
1274 break; 1178 break;
1275 case Opt_minorversion: 1179 case Opt_minorversion:
1276 if (match_int(args, &int_option)) 1180 string = match_strdup(args);
1277 return 0; 1181 if (string == NULL)
1278 if (int_option < 0 || int_option > NFS4_MAX_MINOR_VERSION) 1182 goto out_nomem;
1279 return 0; 1183 rc = strict_strtoul(string, 10, &option);
1280 mnt->minorversion = int_option; 1184 kfree(string);
1185 if (rc != 0)
1186 goto out_invalid_value;
1187 if (option > NFS4_MAX_MINOR_VERSION)
1188 goto out_invalid_value;
1189 mnt->minorversion = option;
1281 break; 1190 break;
1282 1191
1283 /* 1192 /*
@@ -1352,11 +1261,14 @@ static int nfs_parse_mount_options(char *raw,
1352 string = match_strdup(args); 1261 string = match_strdup(args);
1353 if (string == NULL) 1262 if (string == NULL)
1354 goto out_nomem; 1263 goto out_nomem;
1355 nfs_parse_ip_address(string, strlen(string), 1264 mnt->nfs_server.addrlen =
1356 (struct sockaddr *) 1265 rpc_pton(string, strlen(string),
1357 &mnt->nfs_server.address, 1266 (struct sockaddr *)
1358 &mnt->nfs_server.addrlen); 1267 &mnt->nfs_server.address,
1268 sizeof(mnt->nfs_server.address));
1359 kfree(string); 1269 kfree(string);
1270 if (mnt->nfs_server.addrlen == 0)
1271 goto out_invalid_address;
1360 break; 1272 break;
1361 case Opt_clientaddr: 1273 case Opt_clientaddr:
1362 string = match_strdup(args); 1274 string = match_strdup(args);
@@ -1376,11 +1288,14 @@ static int nfs_parse_mount_options(char *raw,
1376 string = match_strdup(args); 1288 string = match_strdup(args);
1377 if (string == NULL) 1289 if (string == NULL)
1378 goto out_nomem; 1290 goto out_nomem;
1379 nfs_parse_ip_address(string, strlen(string), 1291 mnt->mount_server.addrlen =
1380 (struct sockaddr *) 1292 rpc_pton(string, strlen(string),
1381 &mnt->mount_server.address, 1293 (struct sockaddr *)
1382 &mnt->mount_server.addrlen); 1294 &mnt->mount_server.address,
1295 sizeof(mnt->mount_server.address));
1383 kfree(string); 1296 kfree(string);
1297 if (mnt->mount_server.addrlen == 0)
1298 goto out_invalid_address;
1384 break; 1299 break;
1385 case Opt_lookupcache: 1300 case Opt_lookupcache:
1386 string = match_strdup(args); 1301 string = match_strdup(args);
@@ -1432,8 +1347,11 @@ static int nfs_parse_mount_options(char *raw,
1432 1347
1433 return 1; 1348 return 1;
1434 1349
1350out_invalid_address:
1351 printk(KERN_INFO "NFS: bad IP address specified: %s\n", p);
1352 return 0;
1435out_invalid_value: 1353out_invalid_value:
1436 printk(KERN_INFO "NFS: bad mount option value specified: %s \n", p); 1354 printk(KERN_INFO "NFS: bad mount option value specified: %s\n", p);
1437 return 0; 1355 return 0;
1438out_nomem: 1356out_nomem:
1439 printk(KERN_INFO "NFS: not enough memory to parse option\n"); 1357 printk(KERN_INFO "NFS: not enough memory to parse option\n");
@@ -1445,13 +1363,60 @@ out_security_failure:
1445} 1363}
1446 1364
1447/* 1365/*
1366 * Match the requested auth flavors with the list returned by
1367 * the server. Returns zero and sets the mount's authentication
1368 * flavor on success; returns -EACCES if server does not support
1369 * the requested flavor.
1370 */
1371static int nfs_walk_authlist(struct nfs_parsed_mount_data *args,
1372 struct nfs_mount_request *request)
1373{
1374 unsigned int i, j, server_authlist_len = *(request->auth_flav_len);
1375
1376 /*
1377 * Certain releases of Linux's mountd return an empty
1378 * flavor list. To prevent behavioral regression with
1379 * these servers (ie. rejecting mounts that used to
1380 * succeed), revert to pre-2.6.32 behavior (no checking)
1381 * if the returned flavor list is empty.
1382 */
1383 if (server_authlist_len == 0)
1384 return 0;
1385
1386 /*
1387 * We avoid sophisticated negotiating here, as there are
1388 * plenty of cases where we can get it wrong, providing
1389 * either too little or too much security.
1390 *
1391 * RFC 2623, section 2.7 suggests we SHOULD prefer the
1392 * flavor listed first. However, some servers list
1393 * AUTH_NULL first. Our caller plants AUTH_SYS, the
1394 * preferred default, in args->auth_flavors[0] if user
1395 * didn't specify sec= mount option.
1396 */
1397 for (i = 0; i < args->auth_flavor_len; i++)
1398 for (j = 0; j < server_authlist_len; j++)
1399 if (args->auth_flavors[i] == request->auth_flavs[j]) {
1400 dfprintk(MOUNT, "NFS: using auth flavor %d\n",
1401 request->auth_flavs[j]);
1402 args->auth_flavors[0] = request->auth_flavs[j];
1403 return 0;
1404 }
1405
1406 dfprintk(MOUNT, "NFS: server does not support requested auth flavor\n");
1407 nfs_umount(request);
1408 return -EACCES;
1409}
1410
1411/*
1448 * Use the remote server's MOUNT service to request the NFS file handle 1412 * Use the remote server's MOUNT service to request the NFS file handle
1449 * corresponding to the provided path. 1413 * corresponding to the provided path.
1450 */ 1414 */
1451static int nfs_try_mount(struct nfs_parsed_mount_data *args, 1415static int nfs_try_mount(struct nfs_parsed_mount_data *args,
1452 struct nfs_fh *root_fh) 1416 struct nfs_fh *root_fh)
1453{ 1417{
1454 unsigned int auth_flavor_len = 0; 1418 rpc_authflavor_t server_authlist[NFS_MAX_SECFLAVORS];
1419 unsigned int server_authlist_len = ARRAY_SIZE(server_authlist);
1455 struct nfs_mount_request request = { 1420 struct nfs_mount_request request = {
1456 .sap = (struct sockaddr *) 1421 .sap = (struct sockaddr *)
1457 &args->mount_server.address, 1422 &args->mount_server.address,
@@ -1459,7 +1424,8 @@ static int nfs_try_mount(struct nfs_parsed_mount_data *args,
1459 .protocol = args->mount_server.protocol, 1424 .protocol = args->mount_server.protocol,
1460 .fh = root_fh, 1425 .fh = root_fh,
1461 .noresvport = args->flags & NFS_MOUNT_NORESVPORT, 1426 .noresvport = args->flags & NFS_MOUNT_NORESVPORT,
1462 .auth_flav_len = &auth_flavor_len, 1427 .auth_flav_len = &server_authlist_len,
1428 .auth_flavs = server_authlist,
1463 }; 1429 };
1464 int status; 1430 int status;
1465 1431
@@ -1485,23 +1451,25 @@ static int nfs_try_mount(struct nfs_parsed_mount_data *args,
1485 args->mount_server.addrlen = args->nfs_server.addrlen; 1451 args->mount_server.addrlen = args->nfs_server.addrlen;
1486 } 1452 }
1487 request.salen = args->mount_server.addrlen; 1453 request.salen = args->mount_server.addrlen;
1488 1454 nfs_set_default_port(request.sap, args->mount_server.port, 0);
1489 /*
1490 * autobind will be used if mount_server.port == 0
1491 */
1492 nfs_set_port(request.sap, args->mount_server.port);
1493 1455
1494 /* 1456 /*
1495 * Now ask the mount server to map our export path 1457 * Now ask the mount server to map our export path
1496 * to a file handle. 1458 * to a file handle.
1497 */ 1459 */
1498 status = nfs_mount(&request); 1460 status = nfs_mount(&request);
1499 if (status == 0) 1461 if (status != 0) {
1500 return 0; 1462 dfprintk(MOUNT, "NFS: unable to mount server %s, error %d\n",
1463 request.hostname, status);
1464 return status;
1465 }
1501 1466
1502 dfprintk(MOUNT, "NFS: unable to mount server %s, error %d\n", 1467 /*
1503 request.hostname, status); 1468 * MNTv1 (NFSv2) does not support auth flavor negotiation.
1504 return status; 1469 */
1470 if (args->mount_server.version != NFS_MNT3_VERSION)
1471 return 0;
1472 return nfs_walk_authlist(args, &request);
1505} 1473}
1506 1474
1507static int nfs_parse_simple_hostname(const char *dev_name, 1475static int nfs_parse_simple_hostname(const char *dev_name,
@@ -1661,6 +1629,7 @@ static int nfs_validate_mount_data(void *options,
1661 const char *dev_name) 1629 const char *dev_name)
1662{ 1630{
1663 struct nfs_mount_data *data = (struct nfs_mount_data *)options; 1631 struct nfs_mount_data *data = (struct nfs_mount_data *)options;
1632 struct sockaddr *sap = (struct sockaddr *)&args->nfs_server.address;
1664 1633
1665 if (data == NULL) 1634 if (data == NULL)
1666 goto out_no_data; 1635 goto out_no_data;
@@ -1672,10 +1641,12 @@ static int nfs_validate_mount_data(void *options,
1672 args->acregmax = NFS_DEF_ACREGMAX; 1641 args->acregmax = NFS_DEF_ACREGMAX;
1673 args->acdirmin = NFS_DEF_ACDIRMIN; 1642 args->acdirmin = NFS_DEF_ACDIRMIN;
1674 args->acdirmax = NFS_DEF_ACDIRMAX; 1643 args->acdirmax = NFS_DEF_ACDIRMAX;
1675 args->mount_server.port = 0; /* autobind unless user sets port */ 1644 args->mount_server.port = NFS_UNSPEC_PORT;
1676 args->nfs_server.port = 0; /* autobind unless user sets port */ 1645 args->nfs_server.port = NFS_UNSPEC_PORT;
1677 args->nfs_server.protocol = XPRT_TRANSPORT_TCP; 1646 args->nfs_server.protocol = XPRT_TRANSPORT_TCP;
1678 args->auth_flavors[0] = RPC_AUTH_UNIX; 1647 args->auth_flavors[0] = RPC_AUTH_UNIX;
1648 args->auth_flavor_len = 1;
1649 args->minorversion = 0;
1679 1650
1680 switch (data->version) { 1651 switch (data->version) {
1681 case 1: 1652 case 1:
@@ -1697,8 +1668,11 @@ static int nfs_validate_mount_data(void *options,
1697 if (data->root.size > NFS3_FHSIZE || data->root.size == 0) 1668 if (data->root.size > NFS3_FHSIZE || data->root.size == 0)
1698 goto out_invalid_fh; 1669 goto out_invalid_fh;
1699 mntfh->size = data->root.size; 1670 mntfh->size = data->root.size;
1700 } else 1671 args->version = 3;
1672 } else {
1701 mntfh->size = NFS2_FHSIZE; 1673 mntfh->size = NFS2_FHSIZE;
1674 args->version = 2;
1675 }
1702 1676
1703 1677
1704 memcpy(mntfh->data, data->root.data, mntfh->size); 1678 memcpy(mntfh->data, data->root.data, mntfh->size);
@@ -1720,11 +1694,9 @@ static int nfs_validate_mount_data(void *options,
1720 args->acdirmin = data->acdirmin; 1694 args->acdirmin = data->acdirmin;
1721 args->acdirmax = data->acdirmax; 1695 args->acdirmax = data->acdirmax;
1722 1696
1723 memcpy(&args->nfs_server.address, &data->addr, 1697 memcpy(sap, &data->addr, sizeof(data->addr));
1724 sizeof(data->addr));
1725 args->nfs_server.addrlen = sizeof(data->addr); 1698 args->nfs_server.addrlen = sizeof(data->addr);
1726 if (!nfs_verify_server_address((struct sockaddr *) 1699 if (!nfs_verify_server_address(sap))
1727 &args->nfs_server.address))
1728 goto out_no_address; 1700 goto out_no_address;
1729 1701
1730 if (!(data->flags & NFS_MOUNT_TCP)) 1702 if (!(data->flags & NFS_MOUNT_TCP))
@@ -1772,12 +1744,18 @@ static int nfs_validate_mount_data(void *options,
1772 if (nfs_parse_mount_options((char *)options, args) == 0) 1744 if (nfs_parse_mount_options((char *)options, args) == 0)
1773 return -EINVAL; 1745 return -EINVAL;
1774 1746
1775 if (!nfs_verify_server_address((struct sockaddr *) 1747 if (!nfs_verify_server_address(sap))
1776 &args->nfs_server.address))
1777 goto out_no_address; 1748 goto out_no_address;
1778 1749
1779 nfs_set_port((struct sockaddr *)&args->nfs_server.address, 1750 if (args->version == 4)
1780 args->nfs_server.port); 1751#ifdef CONFIG_NFS_V4
1752 return nfs4_validate_text_mount_data(options,
1753 args, dev_name);
1754#else
1755 goto out_v4_not_compiled;
1756#endif
1757
1758 nfs_set_default_port(sap, args->nfs_server.port, 0);
1781 1759
1782 nfs_set_mount_transport_protocol(args); 1760 nfs_set_mount_transport_protocol(args);
1783 1761
@@ -1825,6 +1803,12 @@ out_v3_not_compiled:
1825 return -EPROTONOSUPPORT; 1803 return -EPROTONOSUPPORT;
1826#endif /* !CONFIG_NFS_V3 */ 1804#endif /* !CONFIG_NFS_V3 */
1827 1805
1806#ifndef CONFIG_NFS_V4
1807out_v4_not_compiled:
1808 dfprintk(MOUNT, "NFS: NFSv4 is not compiled into kernel\n");
1809 return -EPROTONOSUPPORT;
1810#endif /* !CONFIG_NFS_V4 */
1811
1828out_nomem: 1812out_nomem:
1829 dfprintk(MOUNT, "NFS: not enough memory to handle mount options\n"); 1813 dfprintk(MOUNT, "NFS: not enough memory to handle mount options\n");
1830 return -ENOMEM; 1814 return -ENOMEM;
@@ -2120,6 +2104,14 @@ static int nfs_get_sb(struct file_system_type *fs_type,
2120 if (error < 0) 2104 if (error < 0)
2121 goto out; 2105 goto out;
2122 2106
2107#ifdef CONFIG_NFS_V4
2108 if (data->version == 4) {
2109 error = nfs4_try_mount(flags, dev_name, data, mnt);
2110 kfree(data->client_address);
2111 goto out;
2112 }
2113#endif /* CONFIG_NFS_V4 */
2114
2123 /* Get a volume representation */ 2115 /* Get a volume representation */
2124 server = nfs_create_server(data, mntfh); 2116 server = nfs_create_server(data, mntfh);
2125 if (IS_ERR(server)) { 2117 if (IS_ERR(server)) {
@@ -2317,6 +2309,43 @@ static void nfs4_validate_mount_flags(struct nfs_parsed_mount_data *args)
2317 args->flags &= ~(NFS_MOUNT_NONLM|NFS_MOUNT_NOACL|NFS_MOUNT_VER3); 2309 args->flags &= ~(NFS_MOUNT_NONLM|NFS_MOUNT_NOACL|NFS_MOUNT_VER3);
2318} 2310}
2319 2311
2312static int nfs4_validate_text_mount_data(void *options,
2313 struct nfs_parsed_mount_data *args,
2314 const char *dev_name)
2315{
2316 struct sockaddr *sap = (struct sockaddr *)&args->nfs_server.address;
2317
2318 nfs_set_default_port(sap, args->nfs_server.port, NFS_PORT);
2319
2320 nfs_validate_transport_protocol(args);
2321
2322 nfs4_validate_mount_flags(args);
2323
2324 if (args->version != 4) {
2325 dfprintk(MOUNT,
2326 "NFS4: Illegal mount version\n");
2327 return -EINVAL;
2328 }
2329
2330 if (args->auth_flavor_len > 1) {
2331 dfprintk(MOUNT,
2332 "NFS4: Too many RPC auth flavours specified\n");
2333 return -EINVAL;
2334 }
2335
2336 if (args->client_address == NULL) {
2337 dfprintk(MOUNT,
2338 "NFS4: mount program didn't pass callback address\n");
2339 return -EINVAL;
2340 }
2341
2342 return nfs_parse_devname(dev_name,
2343 &args->nfs_server.hostname,
2344 NFS4_MAXNAMLEN,
2345 &args->nfs_server.export_path,
2346 NFS4_MAXPATHLEN);
2347}
2348
2320/* 2349/*
2321 * Validate NFSv4 mount options 2350 * Validate NFSv4 mount options
2322 */ 2351 */
@@ -2324,7 +2353,7 @@ static int nfs4_validate_mount_data(void *options,
2324 struct nfs_parsed_mount_data *args, 2353 struct nfs_parsed_mount_data *args,
2325 const char *dev_name) 2354 const char *dev_name)
2326{ 2355{
2327 struct sockaddr_in *ap; 2356 struct sockaddr *sap = (struct sockaddr *)&args->nfs_server.address;
2328 struct nfs4_mount_data *data = (struct nfs4_mount_data *)options; 2357 struct nfs4_mount_data *data = (struct nfs4_mount_data *)options;
2329 char *c; 2358 char *c;
2330 2359
@@ -2337,23 +2366,22 @@ static int nfs4_validate_mount_data(void *options,
2337 args->acregmax = NFS_DEF_ACREGMAX; 2366 args->acregmax = NFS_DEF_ACREGMAX;
2338 args->acdirmin = NFS_DEF_ACDIRMIN; 2367 args->acdirmin = NFS_DEF_ACDIRMIN;
2339 args->acdirmax = NFS_DEF_ACDIRMAX; 2368 args->acdirmax = NFS_DEF_ACDIRMAX;
2340 args->nfs_server.port = NFS_PORT; /* 2049 unless user set port= */ 2369 args->nfs_server.port = NFS_UNSPEC_PORT;
2341 args->auth_flavors[0] = RPC_AUTH_UNIX; 2370 args->auth_flavors[0] = RPC_AUTH_UNIX;
2342 args->auth_flavor_len = 0; 2371 args->auth_flavor_len = 1;
2372 args->version = 4;
2343 args->minorversion = 0; 2373 args->minorversion = 0;
2344 2374
2345 switch (data->version) { 2375 switch (data->version) {
2346 case 1: 2376 case 1:
2347 ap = (struct sockaddr_in *)&args->nfs_server.address;
2348 if (data->host_addrlen > sizeof(args->nfs_server.address)) 2377 if (data->host_addrlen > sizeof(args->nfs_server.address))
2349 goto out_no_address; 2378 goto out_no_address;
2350 if (data->host_addrlen == 0) 2379 if (data->host_addrlen == 0)
2351 goto out_no_address; 2380 goto out_no_address;
2352 args->nfs_server.addrlen = data->host_addrlen; 2381 args->nfs_server.addrlen = data->host_addrlen;
2353 if (copy_from_user(ap, data->host_addr, data->host_addrlen)) 2382 if (copy_from_user(sap, data->host_addr, data->host_addrlen))
2354 return -EFAULT; 2383 return -EFAULT;
2355 if (!nfs_verify_server_address((struct sockaddr *) 2384 if (!nfs_verify_server_address(sap))
2356 &args->nfs_server.address))
2357 goto out_no_address; 2385 goto out_no_address;
2358 2386
2359 if (data->auth_flavourlen) { 2387 if (data->auth_flavourlen) {
@@ -2399,39 +2427,14 @@ static int nfs4_validate_mount_data(void *options,
2399 nfs_validate_transport_protocol(args); 2427 nfs_validate_transport_protocol(args);
2400 2428
2401 break; 2429 break;
2402 default: { 2430 default:
2403 int status;
2404
2405 if (nfs_parse_mount_options((char *)options, args) == 0) 2431 if (nfs_parse_mount_options((char *)options, args) == 0)
2406 return -EINVAL; 2432 return -EINVAL;
2407 2433
2408 if (!nfs_verify_server_address((struct sockaddr *) 2434 if (!nfs_verify_server_address(sap))
2409 &args->nfs_server.address))
2410 return -EINVAL; 2435 return -EINVAL;
2411 2436
2412 nfs_set_port((struct sockaddr *)&args->nfs_server.address, 2437 return nfs4_validate_text_mount_data(options, args, dev_name);
2413 args->nfs_server.port);
2414
2415 nfs_validate_transport_protocol(args);
2416
2417 nfs4_validate_mount_flags(args);
2418
2419 if (args->auth_flavor_len > 1)
2420 goto out_inval_auth;
2421
2422 if (args->client_address == NULL)
2423 goto out_no_client_address;
2424
2425 status = nfs_parse_devname(dev_name,
2426 &args->nfs_server.hostname,
2427 NFS4_MAXNAMLEN,
2428 &args->nfs_server.export_path,
2429 NFS4_MAXPATHLEN);
2430 if (status < 0)
2431 return status;
2432
2433 break;
2434 }
2435 } 2438 }
2436 2439
2437 return 0; 2440 return 0;
@@ -2448,10 +2451,6 @@ out_inval_auth:
2448out_no_address: 2451out_no_address:
2449 dfprintk(MOUNT, "NFS4: mount program didn't pass remote address\n"); 2452 dfprintk(MOUNT, "NFS4: mount program didn't pass remote address\n");
2450 return -EINVAL; 2453 return -EINVAL;
2451
2452out_no_client_address:
2453 dfprintk(MOUNT, "NFS4: mount program didn't pass callback address\n");
2454 return -EINVAL;
2455} 2454}
2456 2455
2457/* 2456/*
@@ -2618,6 +2617,34 @@ out_err:
2618 return ret; 2617 return ret;
2619} 2618}
2620 2619
2620static int nfs4_try_mount(int flags, const char *dev_name,
2621 struct nfs_parsed_mount_data *data,
2622 struct vfsmount *mnt)
2623{
2624 char *export_path;
2625 struct vfsmount *root_mnt;
2626 int error;
2627
2628 dfprintk(MOUNT, "--> nfs4_try_mount()\n");
2629
2630 export_path = data->nfs_server.export_path;
2631 data->nfs_server.export_path = "/";
2632 root_mnt = nfs_do_root_mount(&nfs4_remote_fs_type, flags, data,
2633 data->nfs_server.hostname);
2634 data->nfs_server.export_path = export_path;
2635
2636 error = PTR_ERR(root_mnt);
2637 if (IS_ERR(root_mnt))
2638 goto out;
2639
2640 error = nfs_follow_remote_path(root_mnt, export_path, mnt);
2641
2642out:
2643 dfprintk(MOUNT, "<-- nfs4_try_mount() = %d%s\n", error,
2644 error != 0 ? " [error]" : "");
2645 return error;
2646}
2647
2621/* 2648/*
2622 * Get the superblock for an NFS4 mountpoint 2649 * Get the superblock for an NFS4 mountpoint
2623 */ 2650 */
@@ -2625,8 +2652,6 @@ static int nfs4_get_sb(struct file_system_type *fs_type,
2625 int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt) 2652 int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt)
2626{ 2653{
2627 struct nfs_parsed_mount_data *data; 2654 struct nfs_parsed_mount_data *data;
2628 char *export_path;
2629 struct vfsmount *root_mnt;
2630 int error = -ENOMEM; 2655 int error = -ENOMEM;
2631 2656
2632 data = kzalloc(sizeof(*data), GFP_KERNEL); 2657 data = kzalloc(sizeof(*data), GFP_KERNEL);
@@ -2638,17 +2663,7 @@ static int nfs4_get_sb(struct file_system_type *fs_type,
2638 if (error < 0) 2663 if (error < 0)
2639 goto out; 2664 goto out;
2640 2665
2641 export_path = data->nfs_server.export_path; 2666 error = nfs4_try_mount(flags, dev_name, data, mnt);
2642 data->nfs_server.export_path = "/";
2643 root_mnt = nfs_do_root_mount(&nfs4_remote_fs_type, flags, data,
2644 data->nfs_server.hostname);
2645 data->nfs_server.export_path = export_path;
2646
2647 error = PTR_ERR(root_mnt);
2648 if (IS_ERR(root_mnt))
2649 goto out;
2650
2651 error = nfs_follow_remote_path(root_mnt, export_path, mnt);
2652 2667
2653out: 2668out:
2654 kfree(data->client_address); 2669 kfree(data->client_address);
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index a34fae21fe10..120acadc6a84 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -13,6 +13,7 @@
13#include <linux/file.h> 13#include <linux/file.h>
14#include <linux/writeback.h> 14#include <linux/writeback.h>
15#include <linux/swap.h> 15#include <linux/swap.h>
16#include <linux/migrate.h>
16 17
17#include <linux/sunrpc/clnt.h> 18#include <linux/sunrpc/clnt.h>
18#include <linux/nfs_fs.h> 19#include <linux/nfs_fs.h>
@@ -26,6 +27,7 @@
26#include "internal.h" 27#include "internal.h"
27#include "iostat.h" 28#include "iostat.h"
28#include "nfs4_fs.h" 29#include "nfs4_fs.h"
30#include "fscache.h"
29 31
30#define NFSDBG_FACILITY NFSDBG_PAGECACHE 32#define NFSDBG_FACILITY NFSDBG_PAGECACHE
31 33
@@ -218,24 +220,17 @@ static void nfs_end_page_writeback(struct page *page)
218 clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC); 220 clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC);
219} 221}
220 222
221/* 223static struct nfs_page *nfs_find_and_lock_request(struct page *page)
222 * Find an associated nfs write request, and prepare to flush it out
223 * May return an error if the user signalled nfs_wait_on_request().
224 */
225static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
226 struct page *page)
227{ 224{
228 struct inode *inode = page->mapping->host; 225 struct inode *inode = page->mapping->host;
229 struct nfs_page *req; 226 struct nfs_page *req;
230 int ret; 227 int ret;
231 228
232 spin_lock(&inode->i_lock); 229 spin_lock(&inode->i_lock);
233 for(;;) { 230 for (;;) {
234 req = nfs_page_find_request_locked(page); 231 req = nfs_page_find_request_locked(page);
235 if (req == NULL) { 232 if (req == NULL)
236 spin_unlock(&inode->i_lock); 233 break;
237 return 0;
238 }
239 if (nfs_set_page_tag_locked(req)) 234 if (nfs_set_page_tag_locked(req))
240 break; 235 break;
241 /* Note: If we hold the page lock, as is the case in nfs_writepage, 236 /* Note: If we hold the page lock, as is the case in nfs_writepage,
@@ -247,23 +242,40 @@ static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
247 ret = nfs_wait_on_request(req); 242 ret = nfs_wait_on_request(req);
248 nfs_release_request(req); 243 nfs_release_request(req);
249 if (ret != 0) 244 if (ret != 0)
250 return ret; 245 return ERR_PTR(ret);
251 spin_lock(&inode->i_lock); 246 spin_lock(&inode->i_lock);
252 } 247 }
253 if (test_bit(PG_CLEAN, &req->wb_flags)) {
254 spin_unlock(&inode->i_lock);
255 BUG();
256 }
257 if (nfs_set_page_writeback(page) != 0) {
258 spin_unlock(&inode->i_lock);
259 BUG();
260 }
261 spin_unlock(&inode->i_lock); 248 spin_unlock(&inode->i_lock);
249 return req;
250}
251
252/*
253 * Find an associated nfs write request, and prepare to flush it out
254 * May return an error if the user signalled nfs_wait_on_request().
255 */
256static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
257 struct page *page)
258{
259 struct nfs_page *req;
260 int ret = 0;
261
262 req = nfs_find_and_lock_request(page);
263 if (!req)
264 goto out;
265 ret = PTR_ERR(req);
266 if (IS_ERR(req))
267 goto out;
268
269 ret = nfs_set_page_writeback(page);
270 BUG_ON(ret != 0);
271 BUG_ON(test_bit(PG_CLEAN, &req->wb_flags));
272
262 if (!nfs_pageio_add_request(pgio, req)) { 273 if (!nfs_pageio_add_request(pgio, req)) {
263 nfs_redirty_request(req); 274 nfs_redirty_request(req);
264 return pgio->pg_error; 275 ret = pgio->pg_error;
265 } 276 }
266 return 0; 277out:
278 return ret;
267} 279}
268 280
269static int nfs_do_writepage(struct page *page, struct writeback_control *wbc, struct nfs_pageio_descriptor *pgio) 281static int nfs_do_writepage(struct page *page, struct writeback_control *wbc, struct nfs_pageio_descriptor *pgio)
@@ -1580,6 +1592,41 @@ int nfs_wb_page(struct inode *inode, struct page* page)
1580 return nfs_wb_page_priority(inode, page, FLUSH_STABLE); 1592 return nfs_wb_page_priority(inode, page, FLUSH_STABLE);
1581} 1593}
1582 1594
1595#ifdef CONFIG_MIGRATION
1596int nfs_migrate_page(struct address_space *mapping, struct page *newpage,
1597 struct page *page)
1598{
1599 struct nfs_page *req;
1600 int ret;
1601
1602 if (PageFsCache(page))
1603 nfs_fscache_release_page(page, GFP_KERNEL);
1604
1605 req = nfs_find_and_lock_request(page);
1606 ret = PTR_ERR(req);
1607 if (IS_ERR(req))
1608 goto out;
1609
1610 ret = migrate_page(mapping, newpage, page);
1611 if (!req)
1612 goto out;
1613 if (ret)
1614 goto out_unlock;
1615 page_cache_get(newpage);
1616 req->wb_page = newpage;
1617 SetPagePrivate(newpage);
1618 set_page_private(newpage, page_private(page));
1619 ClearPagePrivate(page);
1620 set_page_private(page, 0);
1621 page_cache_release(page);
1622out_unlock:
1623 nfs_clear_page_tag_locked(req);
1624 nfs_release_request(req);
1625out:
1626 return ret;
1627}
1628#endif
1629
1583int __init nfs_init_writepagecache(void) 1630int __init nfs_init_writepagecache(void)
1584{ 1631{
1585 nfs_wdata_cachep = kmem_cache_create("nfs_write_data", 1632 nfs_wdata_cachep = kmem_cache_create("nfs_write_data",
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index b92a27629fb7..d9462643155c 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -85,6 +85,11 @@ static void expkey_request(struct cache_detail *cd,
85 (*bpp)[-1] = '\n'; 85 (*bpp)[-1] = '\n';
86} 86}
87 87
88static int expkey_upcall(struct cache_detail *cd, struct cache_head *h)
89{
90 return sunrpc_cache_pipe_upcall(cd, h, expkey_request);
91}
92
88static struct svc_expkey *svc_expkey_update(struct svc_expkey *new, struct svc_expkey *old); 93static struct svc_expkey *svc_expkey_update(struct svc_expkey *new, struct svc_expkey *old);
89static struct svc_expkey *svc_expkey_lookup(struct svc_expkey *); 94static struct svc_expkey *svc_expkey_lookup(struct svc_expkey *);
90static struct cache_detail svc_expkey_cache; 95static struct cache_detail svc_expkey_cache;
@@ -259,7 +264,7 @@ static struct cache_detail svc_expkey_cache = {
259 .hash_table = expkey_table, 264 .hash_table = expkey_table,
260 .name = "nfsd.fh", 265 .name = "nfsd.fh",
261 .cache_put = expkey_put, 266 .cache_put = expkey_put,
262 .cache_request = expkey_request, 267 .cache_upcall = expkey_upcall,
263 .cache_parse = expkey_parse, 268 .cache_parse = expkey_parse,
264 .cache_show = expkey_show, 269 .cache_show = expkey_show,
265 .match = expkey_match, 270 .match = expkey_match,
@@ -355,6 +360,11 @@ static void svc_export_request(struct cache_detail *cd,
355 (*bpp)[-1] = '\n'; 360 (*bpp)[-1] = '\n';
356} 361}
357 362
363static int svc_export_upcall(struct cache_detail *cd, struct cache_head *h)
364{
365 return sunrpc_cache_pipe_upcall(cd, h, svc_export_request);
366}
367
358static struct svc_export *svc_export_update(struct svc_export *new, 368static struct svc_export *svc_export_update(struct svc_export *new,
359 struct svc_export *old); 369 struct svc_export *old);
360static struct svc_export *svc_export_lookup(struct svc_export *); 370static struct svc_export *svc_export_lookup(struct svc_export *);
@@ -724,7 +734,7 @@ struct cache_detail svc_export_cache = {
724 .hash_table = export_table, 734 .hash_table = export_table,
725 .name = "nfsd.export", 735 .name = "nfsd.export",
726 .cache_put = svc_export_put, 736 .cache_put = svc_export_put,
727 .cache_request = svc_export_request, 737 .cache_upcall = svc_export_upcall,
728 .cache_parse = svc_export_parse, 738 .cache_parse = svc_export_parse,
729 .cache_show = svc_export_show, 739 .cache_show = svc_export_show,
730 .match = svc_export_match, 740 .match = svc_export_match,
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index 5b398421b051..cdfa86fa1471 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -146,6 +146,12 @@ idtoname_request(struct cache_detail *cd, struct cache_head *ch, char **bpp,
146} 146}
147 147
148static int 148static int
149idtoname_upcall(struct cache_detail *cd, struct cache_head *ch)
150{
151 return sunrpc_cache_pipe_upcall(cd, ch, idtoname_request);
152}
153
154static int
149idtoname_match(struct cache_head *ca, struct cache_head *cb) 155idtoname_match(struct cache_head *ca, struct cache_head *cb)
150{ 156{
151 struct ent *a = container_of(ca, struct ent, h); 157 struct ent *a = container_of(ca, struct ent, h);
@@ -175,10 +181,10 @@ idtoname_show(struct seq_file *m, struct cache_detail *cd, struct cache_head *h)
175} 181}
176 182
177static void 183static void
178warn_no_idmapd(struct cache_detail *detail) 184warn_no_idmapd(struct cache_detail *detail, int has_died)
179{ 185{
180 printk("nfsd: nfsv4 idmapping failing: has idmapd %s?\n", 186 printk("nfsd: nfsv4 idmapping failing: has idmapd %s?\n",
181 detail->last_close? "died" : "not been started"); 187 has_died ? "died" : "not been started");
182} 188}
183 189
184 190
@@ -192,7 +198,7 @@ static struct cache_detail idtoname_cache = {
192 .hash_table = idtoname_table, 198 .hash_table = idtoname_table,
193 .name = "nfs4.idtoname", 199 .name = "nfs4.idtoname",
194 .cache_put = ent_put, 200 .cache_put = ent_put,
195 .cache_request = idtoname_request, 201 .cache_upcall = idtoname_upcall,
196 .cache_parse = idtoname_parse, 202 .cache_parse = idtoname_parse,
197 .cache_show = idtoname_show, 203 .cache_show = idtoname_show,
198 .warn_no_listener = warn_no_idmapd, 204 .warn_no_listener = warn_no_idmapd,
@@ -325,6 +331,12 @@ nametoid_request(struct cache_detail *cd, struct cache_head *ch, char **bpp,
325} 331}
326 332
327static int 333static int
334nametoid_upcall(struct cache_detail *cd, struct cache_head *ch)
335{
336 return sunrpc_cache_pipe_upcall(cd, ch, nametoid_request);
337}
338
339static int
328nametoid_match(struct cache_head *ca, struct cache_head *cb) 340nametoid_match(struct cache_head *ca, struct cache_head *cb)
329{ 341{
330 struct ent *a = container_of(ca, struct ent, h); 342 struct ent *a = container_of(ca, struct ent, h);
@@ -363,7 +375,7 @@ static struct cache_detail nametoid_cache = {
363 .hash_table = nametoid_table, 375 .hash_table = nametoid_table,
364 .name = "nfs4.nametoid", 376 .name = "nfs4.nametoid",
365 .cache_put = ent_put, 377 .cache_put = ent_put,
366 .cache_request = nametoid_request, 378 .cache_upcall = nametoid_upcall,
367 .cache_parse = nametoid_parse, 379 .cache_parse = nametoid_parse,
368 .cache_show = nametoid_show, 380 .cache_show = nametoid_show,
369 .warn_no_listener = warn_no_idmapd, 381 .warn_no_listener = warn_no_idmapd,
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 6d0847562d87..7e906c5b7671 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -37,6 +37,7 @@
37#include <linux/nfsd/xdr.h> 37#include <linux/nfsd/xdr.h>
38#include <linux/nfsd/syscall.h> 38#include <linux/nfsd/syscall.h>
39#include <linux/lockd/lockd.h> 39#include <linux/lockd/lockd.h>
40#include <linux/sunrpc/clnt.h>
40 41
41#include <asm/uaccess.h> 42#include <asm/uaccess.h>
42#include <net/ipv6.h> 43#include <net/ipv6.h>
@@ -490,22 +491,18 @@ static ssize_t write_getfd(struct file *file, char *buf, size_t size)
490 * 491 *
491 * Input: 492 * Input:
492 * buf: '\n'-terminated C string containing a 493 * buf: '\n'-terminated C string containing a
493 * presentation format IPv4 address 494 * presentation format IP address
494 * size: length of C string in @buf 495 * size: length of C string in @buf
495 * Output: 496 * Output:
496 * On success: returns zero if all specified locks were released; 497 * On success: returns zero if all specified locks were released;
497 * returns one if one or more locks were not released 498 * returns one if one or more locks were not released
498 * On error: return code is negative errno value 499 * On error: return code is negative errno value
499 *
500 * Note: Only AF_INET client addresses are passed in
501 */ 500 */
502static ssize_t write_unlock_ip(struct file *file, char *buf, size_t size) 501static ssize_t write_unlock_ip(struct file *file, char *buf, size_t size)
503{ 502{
504 struct sockaddr_in sin = { 503 struct sockaddr_storage address;
505 .sin_family = AF_INET, 504 struct sockaddr *sap = (struct sockaddr *)&address;
506 }; 505 size_t salen = sizeof(address);
507 int b1, b2, b3, b4;
508 char c;
509 char *fo_path; 506 char *fo_path;
510 507
511 /* sanity check */ 508 /* sanity check */
@@ -519,14 +516,10 @@ static ssize_t write_unlock_ip(struct file *file, char *buf, size_t size)
519 if (qword_get(&buf, fo_path, size) < 0) 516 if (qword_get(&buf, fo_path, size) < 0)
520 return -EINVAL; 517 return -EINVAL;
521 518
522 /* get ipv4 address */ 519 if (rpc_pton(fo_path, size, sap, salen) == 0)
523 if (sscanf(fo_path, "%u.%u.%u.%u%c", &b1, &b2, &b3, &b4, &c) != 4)
524 return -EINVAL;
525 if (b1 > 255 || b2 > 255 || b3 > 255 || b4 > 255)
526 return -EINVAL; 520 return -EINVAL;
527 sin.sin_addr.s_addr = htonl((b1 << 24) | (b2 << 16) | (b3 << 8) | b4);
528 521
529 return nlmsvc_unlock_all_by_ip((struct sockaddr *)&sin); 522 return nlmsvc_unlock_all_by_ip(sap);
530} 523}
531 524
532/** 525/**
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index bd2eba530667..33b283601f62 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -472,6 +472,7 @@ enum lock_type4 {
472 472
473#define NFSPROC4_NULL 0 473#define NFSPROC4_NULL 0
474#define NFSPROC4_COMPOUND 1 474#define NFSPROC4_COMPOUND 1
475#define NFS4_VERSION 4
475#define NFS4_MINOR_VERSION 0 476#define NFS4_MINOR_VERSION 0
476 477
477#if defined(CONFIG_NFS_V4_1) 478#if defined(CONFIG_NFS_V4_1)
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 19fe15d12042..320569eabe3b 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -167,6 +167,15 @@ struct nfs_server {
167#define NFS_CAP_SYMLINKS (1U << 2) 167#define NFS_CAP_SYMLINKS (1U << 2)
168#define NFS_CAP_ACLS (1U << 3) 168#define NFS_CAP_ACLS (1U << 3)
169#define NFS_CAP_ATOMIC_OPEN (1U << 4) 169#define NFS_CAP_ATOMIC_OPEN (1U << 4)
170#define NFS_CAP_CHANGE_ATTR (1U << 5)
171#define NFS_CAP_FILEID (1U << 6)
172#define NFS_CAP_MODE (1U << 7)
173#define NFS_CAP_NLINK (1U << 8)
174#define NFS_CAP_OWNER (1U << 9)
175#define NFS_CAP_OWNER_GROUP (1U << 10)
176#define NFS_CAP_ATIME (1U << 11)
177#define NFS_CAP_CTIME (1U << 12)
178#define NFS_CAP_MTIME (1U << 13)
170 179
171 180
172/* maximum number of slots to use */ 181/* maximum number of slots to use */
diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h
index 2d8b211b9324..6f52b4d7c447 100644
--- a/include/linux/sunrpc/cache.h
+++ b/include/linux/sunrpc/cache.h
@@ -59,6 +59,15 @@ struct cache_head {
59 59
60#define CACHE_NEW_EXPIRY 120 /* keep new things pending confirmation for 120 seconds */ 60#define CACHE_NEW_EXPIRY 120 /* keep new things pending confirmation for 120 seconds */
61 61
62struct cache_detail_procfs {
63 struct proc_dir_entry *proc_ent;
64 struct proc_dir_entry *flush_ent, *channel_ent, *content_ent;
65};
66
67struct cache_detail_pipefs {
68 struct dentry *dir;
69};
70
62struct cache_detail { 71struct cache_detail {
63 struct module * owner; 72 struct module * owner;
64 int hash_size; 73 int hash_size;
@@ -70,15 +79,17 @@ struct cache_detail {
70 char *name; 79 char *name;
71 void (*cache_put)(struct kref *); 80 void (*cache_put)(struct kref *);
72 81
73 void (*cache_request)(struct cache_detail *cd, 82 int (*cache_upcall)(struct cache_detail *,
74 struct cache_head *h, 83 struct cache_head *);
75 char **bpp, int *blen); 84
76 int (*cache_parse)(struct cache_detail *, 85 int (*cache_parse)(struct cache_detail *,
77 char *buf, int len); 86 char *buf, int len);
78 87
79 int (*cache_show)(struct seq_file *m, 88 int (*cache_show)(struct seq_file *m,
80 struct cache_detail *cd, 89 struct cache_detail *cd,
81 struct cache_head *h); 90 struct cache_head *h);
91 void (*warn_no_listener)(struct cache_detail *cd,
92 int has_died);
82 93
83 struct cache_head * (*alloc)(void); 94 struct cache_head * (*alloc)(void);
84 int (*match)(struct cache_head *orig, struct cache_head *new); 95 int (*match)(struct cache_head *orig, struct cache_head *new);
@@ -96,13 +107,15 @@ struct cache_detail {
96 107
97 /* fields for communication over channel */ 108 /* fields for communication over channel */
98 struct list_head queue; 109 struct list_head queue;
99 struct proc_dir_entry *proc_ent;
100 struct proc_dir_entry *flush_ent, *channel_ent, *content_ent;
101 110
102 atomic_t readers; /* how many time is /chennel open */ 111 atomic_t readers; /* how many time is /chennel open */
103 time_t last_close; /* if no readers, when did last close */ 112 time_t last_close; /* if no readers, when did last close */
104 time_t last_warn; /* when we last warned about no readers */ 113 time_t last_warn; /* when we last warned about no readers */
105 void (*warn_no_listener)(struct cache_detail *cd); 114
115 union {
116 struct cache_detail_procfs procfs;
117 struct cache_detail_pipefs pipefs;
118 } u;
106}; 119};
107 120
108 121
@@ -127,6 +140,10 @@ struct cache_deferred_req {
127}; 140};
128 141
129 142
143extern const struct file_operations cache_file_operations_pipefs;
144extern const struct file_operations content_file_operations_pipefs;
145extern const struct file_operations cache_flush_operations_pipefs;
146
130extern struct cache_head * 147extern struct cache_head *
131sunrpc_cache_lookup(struct cache_detail *detail, 148sunrpc_cache_lookup(struct cache_detail *detail,
132 struct cache_head *key, int hash); 149 struct cache_head *key, int hash);
@@ -134,6 +151,13 @@ extern struct cache_head *
134sunrpc_cache_update(struct cache_detail *detail, 151sunrpc_cache_update(struct cache_detail *detail,
135 struct cache_head *new, struct cache_head *old, int hash); 152 struct cache_head *new, struct cache_head *old, int hash);
136 153
154extern int
155sunrpc_cache_pipe_upcall(struct cache_detail *detail, struct cache_head *h,
156 void (*cache_request)(struct cache_detail *,
157 struct cache_head *,
158 char **,
159 int *));
160
137 161
138extern void cache_clean_deferred(void *owner); 162extern void cache_clean_deferred(void *owner);
139 163
@@ -171,6 +195,10 @@ extern void cache_purge(struct cache_detail *detail);
171extern int cache_register(struct cache_detail *cd); 195extern int cache_register(struct cache_detail *cd);
172extern void cache_unregister(struct cache_detail *cd); 196extern void cache_unregister(struct cache_detail *cd);
173 197
198extern int sunrpc_cache_register_pipefs(struct dentry *parent, const char *,
199 mode_t, struct cache_detail *);
200extern void sunrpc_cache_unregister_pipefs(struct cache_detail *);
201
174extern void qword_add(char **bpp, int *lp, char *str); 202extern void qword_add(char **bpp, int *lp, char *str);
175extern void qword_addhex(char **bpp, int *lp, char *buf, int blen); 203extern void qword_addhex(char **bpp, int *lp, char *buf, int blen);
176extern int qword_get(char **bpp, char *dest, int bufsize); 204extern int qword_get(char **bpp, char *dest, int bufsize);
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 37881f1a0bd7..ab3f6e90caa5 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -9,6 +9,10 @@
9#ifndef _LINUX_SUNRPC_CLNT_H 9#ifndef _LINUX_SUNRPC_CLNT_H
10#define _LINUX_SUNRPC_CLNT_H 10#define _LINUX_SUNRPC_CLNT_H
11 11
12#include <linux/socket.h>
13#include <linux/in.h>
14#include <linux/in6.h>
15
12#include <linux/sunrpc/msg_prot.h> 16#include <linux/sunrpc/msg_prot.h>
13#include <linux/sunrpc/sched.h> 17#include <linux/sunrpc/sched.h>
14#include <linux/sunrpc/xprt.h> 18#include <linux/sunrpc/xprt.h>
@@ -17,6 +21,7 @@
17#include <linux/sunrpc/xdr.h> 21#include <linux/sunrpc/xdr.h>
18#include <linux/sunrpc/timer.h> 22#include <linux/sunrpc/timer.h>
19#include <asm/signal.h> 23#include <asm/signal.h>
24#include <linux/path.h>
20 25
21struct rpc_inode; 26struct rpc_inode;
22 27
@@ -50,9 +55,7 @@ struct rpc_clnt {
50 55
51 int cl_nodelen; /* nodename length */ 56 int cl_nodelen; /* nodename length */
52 char cl_nodename[UNX_MAXNODENAME]; 57 char cl_nodename[UNX_MAXNODENAME];
53 char cl_pathname[30];/* Path in rpc_pipe_fs */ 58 struct path cl_path;
54 struct vfsmount * cl_vfsmnt;
55 struct dentry * cl_dentry; /* inode */
56 struct rpc_clnt * cl_parent; /* Points to parent of clones */ 59 struct rpc_clnt * cl_parent; /* Points to parent of clones */
57 struct rpc_rtt cl_rtt_default; 60 struct rpc_rtt cl_rtt_default;
58 struct rpc_timeout cl_timeout_default; 61 struct rpc_timeout cl_timeout_default;
@@ -151,5 +154,39 @@ void rpc_force_rebind(struct rpc_clnt *);
151size_t rpc_peeraddr(struct rpc_clnt *, struct sockaddr *, size_t); 154size_t rpc_peeraddr(struct rpc_clnt *, struct sockaddr *, size_t);
152const char *rpc_peeraddr2str(struct rpc_clnt *, enum rpc_display_format_t); 155const char *rpc_peeraddr2str(struct rpc_clnt *, enum rpc_display_format_t);
153 156
157size_t rpc_ntop(const struct sockaddr *, char *, const size_t);
158size_t rpc_pton(const char *, const size_t,
159 struct sockaddr *, const size_t);
160char * rpc_sockaddr2uaddr(const struct sockaddr *);
161size_t rpc_uaddr2sockaddr(const char *, const size_t,
162 struct sockaddr *, const size_t);
163
164static inline unsigned short rpc_get_port(const struct sockaddr *sap)
165{
166 switch (sap->sa_family) {
167 case AF_INET:
168 return ntohs(((struct sockaddr_in *)sap)->sin_port);
169 case AF_INET6:
170 return ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
171 }
172 return 0;
173}
174
175static inline void rpc_set_port(struct sockaddr *sap,
176 const unsigned short port)
177{
178 switch (sap->sa_family) {
179 case AF_INET:
180 ((struct sockaddr_in *)sap)->sin_port = htons(port);
181 break;
182 case AF_INET6:
183 ((struct sockaddr_in6 *)sap)->sin6_port = htons(port);
184 break;
185 }
186}
187
188#define IPV6_SCOPE_DELIMITER '%'
189#define IPV6_SCOPE_ID_LEN sizeof("%nnnnnnnnnn")
190
154#endif /* __KERNEL__ */ 191#endif /* __KERNEL__ */
155#endif /* _LINUX_SUNRPC_CLNT_H */ 192#endif /* _LINUX_SUNRPC_CLNT_H */
diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h
index 70df4f1d8847..77e624883393 100644
--- a/include/linux/sunrpc/msg_prot.h
+++ b/include/linux/sunrpc/msg_prot.h
@@ -189,7 +189,22 @@ typedef __be32 rpc_fraghdr;
189 * Additionally, the two alternative forms specified in Section 2.2 of 189 * Additionally, the two alternative forms specified in Section 2.2 of
190 * [RFC2373] are also acceptable. 190 * [RFC2373] are also acceptable.
191 */ 191 */
192#define RPCBIND_MAXUADDRLEN (56u) 192
193#include <linux/inet.h>
194
195/* Maximum size of the port number part of a universal address */
196#define RPCBIND_MAXUADDRPLEN sizeof(".255.255")
197
198/* Maximum size of an IPv4 universal address */
199#define RPCBIND_MAXUADDR4LEN \
200 (INET_ADDRSTRLEN + RPCBIND_MAXUADDRPLEN)
201
202/* Maximum size of an IPv6 universal address */
203#define RPCBIND_MAXUADDR6LEN \
204 (INET6_ADDRSTRLEN + RPCBIND_MAXUADDRPLEN)
205
206/* Assume INET6_ADDRSTRLEN will always be larger than INET_ADDRSTRLEN... */
207#define RPCBIND_MAXUADDRLEN RPCBIND_MAXUADDR6LEN
193 208
194#endif /* __KERNEL__ */ 209#endif /* __KERNEL__ */
195#endif /* _LINUX_SUNRPC_MSGPROT_H_ */ 210#endif /* _LINUX_SUNRPC_MSGPROT_H_ */
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index cea764c2359f..cf14db975da0 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -3,6 +3,8 @@
3 3
4#ifdef __KERNEL__ 4#ifdef __KERNEL__
5 5
6#include <linux/workqueue.h>
7
6struct rpc_pipe_msg { 8struct rpc_pipe_msg {
7 struct list_head list; 9 struct list_head list;
8 void *data; 10 void *data;
@@ -32,8 +34,8 @@ struct rpc_inode {
32 wait_queue_head_t waitq; 34 wait_queue_head_t waitq;
33#define RPC_PIPE_WAIT_FOR_OPEN 1 35#define RPC_PIPE_WAIT_FOR_OPEN 1
34 int flags; 36 int flags;
35 struct rpc_pipe_ops *ops;
36 struct delayed_work queue_timeout; 37 struct delayed_work queue_timeout;
38 const struct rpc_pipe_ops *ops;
37}; 39};
38 40
39static inline struct rpc_inode * 41static inline struct rpc_inode *
@@ -44,9 +46,19 @@ RPC_I(struct inode *inode)
44 46
45extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *); 47extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *);
46 48
47extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *); 49struct rpc_clnt;
48extern int rpc_rmdir(struct dentry *); 50extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *);
49extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *, struct rpc_pipe_ops *, int flags); 51extern int rpc_remove_client_dir(struct dentry *);
52
53struct cache_detail;
54extern struct dentry *rpc_create_cache_dir(struct dentry *,
55 struct qstr *,
56 mode_t umode,
57 struct cache_detail *);
58extern void rpc_remove_cache_dir(struct dentry *);
59
60extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *,
61 const struct rpc_pipe_ops *, int flags);
50extern int rpc_unlink(struct dentry *); 62extern int rpc_unlink(struct dentry *);
51extern struct vfsmount *rpc_get_mount(void); 63extern struct vfsmount *rpc_get_mount(void);
52extern void rpc_put_mount(void); 64extern void rpc_put_mount(void);
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index b99c625fddfe..7da466ba4b0d 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -117,17 +117,15 @@ static inline __be32 *xdr_encode_array(__be32 *p, const void *s, unsigned int le
117static inline __be32 * 117static inline __be32 *
118xdr_encode_hyper(__be32 *p, __u64 val) 118xdr_encode_hyper(__be32 *p, __u64 val)
119{ 119{
120 *p++ = htonl(val >> 32); 120 *(__be64 *)p = cpu_to_be64(val);
121 *p++ = htonl(val & 0xFFFFFFFF); 121 return p + 2;
122 return p;
123} 122}
124 123
125static inline __be32 * 124static inline __be32 *
126xdr_decode_hyper(__be32 *p, __u64 *valp) 125xdr_decode_hyper(__be32 *p, __u64 *valp)
127{ 126{
128 *valp = ((__u64) ntohl(*p++)) << 32; 127 *valp = be64_to_cpup((__be64 *)p);
129 *valp |= ntohl(*p++); 128 return p + 2;
130 return p;
131} 129}
132 130
133/* 131/*
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 1175d58efc2e..c090df442572 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -38,10 +38,8 @@ enum rpc_display_format_t {
38 RPC_DISPLAY_ADDR = 0, 38 RPC_DISPLAY_ADDR = 0,
39 RPC_DISPLAY_PORT, 39 RPC_DISPLAY_PORT,
40 RPC_DISPLAY_PROTO, 40 RPC_DISPLAY_PROTO,
41 RPC_DISPLAY_ALL,
42 RPC_DISPLAY_HEX_ADDR, 41 RPC_DISPLAY_HEX_ADDR,
43 RPC_DISPLAY_HEX_PORT, 42 RPC_DISPLAY_HEX_PORT,
44 RPC_DISPLAY_UNIVERSAL_ADDR,
45 RPC_DISPLAY_NETID, 43 RPC_DISPLAY_NETID,
46 RPC_DISPLAY_MAX, 44 RPC_DISPLAY_MAX,
47}; 45};
diff --git a/net/sunrpc/Makefile b/net/sunrpc/Makefile
index db73fd2a3f0e..9d2fca5ad14a 100644
--- a/net/sunrpc/Makefile
+++ b/net/sunrpc/Makefile
@@ -10,7 +10,7 @@ obj-$(CONFIG_SUNRPC_XPRT_RDMA) += xprtrdma/
10sunrpc-y := clnt.o xprt.o socklib.o xprtsock.o sched.o \ 10sunrpc-y := clnt.o xprt.o socklib.o xprtsock.o sched.o \
11 auth.o auth_null.o auth_unix.o auth_generic.o \ 11 auth.o auth_null.o auth_unix.o auth_generic.o \
12 svc.o svcsock.o svcauth.o svcauth_unix.o \ 12 svc.o svcsock.o svcauth.o svcauth_unix.o \
13 rpcb_clnt.o timer.o xdr.o \ 13 addr.o rpcb_clnt.o timer.o xdr.o \
14 sunrpc_syms.o cache.o rpc_pipe.o \ 14 sunrpc_syms.o cache.o rpc_pipe.o \
15 svc_xprt.o 15 svc_xprt.o
16sunrpc-$(CONFIG_NFS_V4_1) += backchannel_rqst.o bc_svc.o 16sunrpc-$(CONFIG_NFS_V4_1) += backchannel_rqst.o bc_svc.o
diff --git a/net/sunrpc/addr.c b/net/sunrpc/addr.c
new file mode 100644
index 000000000000..22e8fd89477f
--- /dev/null
+++ b/net/sunrpc/addr.c
@@ -0,0 +1,364 @@
1/*
2 * Copyright 2009, Oracle. All rights reserved.
3 *
4 * Convert socket addresses to presentation addresses and universal
5 * addresses, and vice versa.
6 *
7 * Universal addresses are introduced by RFC 1833 and further refined by
8 * recent RFCs describing NFSv4. The universal address format is part
9 * of the external (network) interface provided by rpcbind version 3
10 * and 4, and by NFSv4. Such an address is a string containing a
11 * presentation format IP address followed by a port number in
12 * "hibyte.lobyte" format.
13 *
14 * IPv6 addresses can also include a scope ID, typically denoted by
15 * a '%' followed by a device name or a non-negative integer. Refer to
16 * RFC 4291, Section 2.2 for details on IPv6 presentation formats.
17 */
18
19#include <net/ipv6.h>
20#include <linux/sunrpc/clnt.h>
21
22#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
23
24static size_t rpc_ntop6_noscopeid(const struct sockaddr *sap,
25 char *buf, const int buflen)
26{
27 const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
28 const struct in6_addr *addr = &sin6->sin6_addr;
29
30 /*
31 * RFC 4291, Section 2.2.2
32 *
33 * Shorthanded ANY address
34 */
35 if (ipv6_addr_any(addr))
36 return snprintf(buf, buflen, "::");
37
38 /*
39 * RFC 4291, Section 2.2.2
40 *
41 * Shorthanded loopback address
42 */
43 if (ipv6_addr_loopback(addr))
44 return snprintf(buf, buflen, "::1");
45
46 /*
47 * RFC 4291, Section 2.2.3
48 *
49 * Special presentation address format for mapped v4
50 * addresses.
51 */
52 if (ipv6_addr_v4mapped(addr))
53 return snprintf(buf, buflen, "::ffff:%pI4",
54 &addr->s6_addr32[3]);
55
56 /*
57 * RFC 4291, Section 2.2.1
58 *
59 * To keep the result as short as possible, especially
60 * since we don't shorthand, we don't want leading zeros
61 * in each halfword, so avoid %pI6.
62 */
63 return snprintf(buf, buflen, "%x:%x:%x:%x:%x:%x:%x:%x",
64 ntohs(addr->s6_addr16[0]), ntohs(addr->s6_addr16[1]),
65 ntohs(addr->s6_addr16[2]), ntohs(addr->s6_addr16[3]),
66 ntohs(addr->s6_addr16[4]), ntohs(addr->s6_addr16[5]),
67 ntohs(addr->s6_addr16[6]), ntohs(addr->s6_addr16[7]));
68}
69
70static size_t rpc_ntop6(const struct sockaddr *sap,
71 char *buf, const size_t buflen)
72{
73 const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
74 char scopebuf[IPV6_SCOPE_ID_LEN];
75 size_t len;
76 int rc;
77
78 len = rpc_ntop6_noscopeid(sap, buf, buflen);
79 if (unlikely(len == 0))
80 return len;
81
82 if (!(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) &&
83 !(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_SITELOCAL))
84 return len;
85
86 rc = snprintf(scopebuf, sizeof(scopebuf), "%c%u",
87 IPV6_SCOPE_DELIMITER, sin6->sin6_scope_id);
88 if (unlikely((size_t)rc > sizeof(scopebuf)))
89 return 0;
90
91 len += rc;
92 if (unlikely(len > buflen))
93 return 0;
94
95 strcat(buf, scopebuf);
96 return len;
97}
98
99#else /* !(defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)) */
100
101static size_t rpc_ntop6_noscopeid(const struct sockaddr *sap,
102 char *buf, const int buflen)
103{
104 return 0;
105}
106
107static size_t rpc_ntop6(const struct sockaddr *sap,
108 char *buf, const size_t buflen)
109{
110 return 0;
111}
112
113#endif /* !(defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)) */
114
115static int rpc_ntop4(const struct sockaddr *sap,
116 char *buf, const size_t buflen)
117{
118 const struct sockaddr_in *sin = (struct sockaddr_in *)sap;
119
120 return snprintf(buf, buflen, "%pI4", &sin->sin_addr);
121}
122
123/**
124 * rpc_ntop - construct a presentation address in @buf
125 * @sap: socket address
126 * @buf: construction area
127 * @buflen: size of @buf, in bytes
128 *
129 * Plants a %NUL-terminated string in @buf and returns the length
130 * of the string, excluding the %NUL. Otherwise zero is returned.
131 */
132size_t rpc_ntop(const struct sockaddr *sap, char *buf, const size_t buflen)
133{
134 switch (sap->sa_family) {
135 case AF_INET:
136 return rpc_ntop4(sap, buf, buflen);
137 case AF_INET6:
138 return rpc_ntop6(sap, buf, buflen);
139 }
140
141 return 0;
142}
143EXPORT_SYMBOL_GPL(rpc_ntop);
144
145static size_t rpc_pton4(const char *buf, const size_t buflen,
146 struct sockaddr *sap, const size_t salen)
147{
148 struct sockaddr_in *sin = (struct sockaddr_in *)sap;
149 u8 *addr = (u8 *)&sin->sin_addr.s_addr;
150
151 if (buflen > INET_ADDRSTRLEN || salen < sizeof(struct sockaddr_in))
152 return 0;
153
154 memset(sap, 0, sizeof(struct sockaddr_in));
155
156 if (in4_pton(buf, buflen, addr, '\0', NULL) == 0)
157 return 0;
158
159 sin->sin_family = AF_INET;
160 return sizeof(struct sockaddr_in);;
161}
162
163#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
164static int rpc_parse_scope_id(const char *buf, const size_t buflen,
165 const char *delim, struct sockaddr_in6 *sin6)
166{
167 char *p;
168 size_t len;
169
170 if ((buf + buflen) == delim)
171 return 1;
172
173 if (*delim != IPV6_SCOPE_DELIMITER)
174 return 0;
175
176 if (!(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) &&
177 !(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_SITELOCAL))
178 return 0;
179
180 len = (buf + buflen) - delim - 1;
181 p = kstrndup(delim + 1, len, GFP_KERNEL);
182 if (p) {
183 unsigned long scope_id = 0;
184 struct net_device *dev;
185
186 dev = dev_get_by_name(&init_net, p);
187 if (dev != NULL) {
188 scope_id = dev->ifindex;
189 dev_put(dev);
190 } else {
191 if (strict_strtoul(p, 10, &scope_id) == 0) {
192 kfree(p);
193 return 0;
194 }
195 }
196
197 kfree(p);
198
199 sin6->sin6_scope_id = scope_id;
200 return 1;
201 }
202
203 return 0;
204}
205
206static size_t rpc_pton6(const char *buf, const size_t buflen,
207 struct sockaddr *sap, const size_t salen)
208{
209 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
210 u8 *addr = (u8 *)&sin6->sin6_addr.in6_u;
211 const char *delim;
212
213 if (buflen > (INET6_ADDRSTRLEN + IPV6_SCOPE_ID_LEN) ||
214 salen < sizeof(struct sockaddr_in6))
215 return 0;
216
217 memset(sap, 0, sizeof(struct sockaddr_in6));
218
219 if (in6_pton(buf, buflen, addr, IPV6_SCOPE_DELIMITER, &delim) == 0)
220 return 0;
221
222 if (!rpc_parse_scope_id(buf, buflen, delim, sin6))
223 return 0;
224
225 sin6->sin6_family = AF_INET6;
226 return sizeof(struct sockaddr_in6);
227}
228#else
229static size_t rpc_pton6(const char *buf, const size_t buflen,
230 struct sockaddr *sap, const size_t salen)
231{
232 return 0;
233}
234#endif
235
236/**
237 * rpc_pton - Construct a sockaddr in @sap
238 * @buf: C string containing presentation format IP address
239 * @buflen: length of presentation address in bytes
240 * @sap: buffer into which to plant socket address
241 * @salen: size of buffer in bytes
242 *
243 * Returns the size of the socket address if successful; otherwise
244 * zero is returned.
245 *
246 * Plants a socket address in @sap and returns the size of the
247 * socket address, if successful. Returns zero if an error
248 * occurred.
249 */
250size_t rpc_pton(const char *buf, const size_t buflen,
251 struct sockaddr *sap, const size_t salen)
252{
253 unsigned int i;
254
255 for (i = 0; i < buflen; i++)
256 if (buf[i] == ':')
257 return rpc_pton6(buf, buflen, sap, salen);
258 return rpc_pton4(buf, buflen, sap, salen);
259}
260EXPORT_SYMBOL_GPL(rpc_pton);
261
262/**
263 * rpc_sockaddr2uaddr - Construct a universal address string from @sap.
264 * @sap: socket address
265 *
266 * Returns a %NUL-terminated string in dynamically allocated memory;
267 * otherwise NULL is returned if an error occurred. Caller must
268 * free the returned string.
269 */
270char *rpc_sockaddr2uaddr(const struct sockaddr *sap)
271{
272 char portbuf[RPCBIND_MAXUADDRPLEN];
273 char addrbuf[RPCBIND_MAXUADDRLEN];
274 unsigned short port;
275
276 switch (sap->sa_family) {
277 case AF_INET:
278 if (rpc_ntop4(sap, addrbuf, sizeof(addrbuf)) == 0)
279 return NULL;
280 port = ntohs(((struct sockaddr_in *)sap)->sin_port);
281 break;
282 case AF_INET6:
283 if (rpc_ntop6_noscopeid(sap, addrbuf, sizeof(addrbuf)) == 0)
284 return NULL;
285 port = ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
286 break;
287 default:
288 return NULL;
289 }
290
291 if (snprintf(portbuf, sizeof(portbuf),
292 ".%u.%u", port >> 8, port & 0xff) > (int)sizeof(portbuf))
293 return NULL;
294
295 if (strlcat(addrbuf, portbuf, sizeof(addrbuf)) > sizeof(addrbuf))
296 return NULL;
297
298 return kstrdup(addrbuf, GFP_KERNEL);
299}
300EXPORT_SYMBOL_GPL(rpc_sockaddr2uaddr);
301
302/**
303 * rpc_uaddr2sockaddr - convert a universal address to a socket address.
304 * @uaddr: C string containing universal address to convert
305 * @uaddr_len: length of universal address string
306 * @sap: buffer into which to plant socket address
307 * @salen: size of buffer
308 *
309 * Returns the size of the socket address if successful; otherwise
310 * zero is returned.
311 */
312size_t rpc_uaddr2sockaddr(const char *uaddr, const size_t uaddr_len,
313 struct sockaddr *sap, const size_t salen)
314{
315 char *c, buf[RPCBIND_MAXUADDRLEN];
316 unsigned long portlo, porthi;
317 unsigned short port;
318
319 if (uaddr_len > sizeof(buf))
320 return 0;
321
322 memcpy(buf, uaddr, uaddr_len);
323
324 buf[uaddr_len] = '\n';
325 buf[uaddr_len + 1] = '\0';
326
327 c = strrchr(buf, '.');
328 if (unlikely(c == NULL))
329 return 0;
330 if (unlikely(strict_strtoul(c + 1, 10, &portlo) != 0))
331 return 0;
332 if (unlikely(portlo > 255))
333 return 0;
334
335 c[0] = '\n';
336 c[1] = '\0';
337
338 c = strrchr(buf, '.');
339 if (unlikely(c == NULL))
340 return 0;
341 if (unlikely(strict_strtoul(c + 1, 10, &porthi) != 0))
342 return 0;
343 if (unlikely(porthi > 255))
344 return 0;
345
346 port = (unsigned short)((porthi << 8) | portlo);
347
348 c[0] = '\0';
349
350 if (rpc_pton(buf, strlen(buf), sap, salen) == 0)
351 return 0;
352
353 switch (sap->sa_family) {
354 case AF_INET:
355 ((struct sockaddr_in *)sap)->sin_port = htons(port);
356 return sizeof(struct sockaddr_in);
357 case AF_INET6:
358 ((struct sockaddr_in6 *)sap)->sin6_port = htons(port);
359 return sizeof(struct sockaddr_in6);
360 }
361
362 return 0;
363}
364EXPORT_SYMBOL_GPL(rpc_uaddr2sockaddr);
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 66d458fc6920..fc6a43ccd950 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -89,8 +89,8 @@ static struct rpc_wait_queue pipe_version_rpc_waitqueue;
89static DECLARE_WAIT_QUEUE_HEAD(pipe_version_waitqueue); 89static DECLARE_WAIT_QUEUE_HEAD(pipe_version_waitqueue);
90 90
91static void gss_free_ctx(struct gss_cl_ctx *); 91static void gss_free_ctx(struct gss_cl_ctx *);
92static struct rpc_pipe_ops gss_upcall_ops_v0; 92static const struct rpc_pipe_ops gss_upcall_ops_v0;
93static struct rpc_pipe_ops gss_upcall_ops_v1; 93static const struct rpc_pipe_ops gss_upcall_ops_v1;
94 94
95static inline struct gss_cl_ctx * 95static inline struct gss_cl_ctx *
96gss_get_ctx(struct gss_cl_ctx *ctx) 96gss_get_ctx(struct gss_cl_ctx *ctx)
@@ -777,7 +777,7 @@ gss_create(struct rpc_clnt *clnt, rpc_authflavor_t flavor)
777 * that we supported only the old pipe. So we instead create 777 * that we supported only the old pipe. So we instead create
778 * the new pipe first. 778 * the new pipe first.
779 */ 779 */
780 gss_auth->dentry[1] = rpc_mkpipe(clnt->cl_dentry, 780 gss_auth->dentry[1] = rpc_mkpipe(clnt->cl_path.dentry,
781 "gssd", 781 "gssd",
782 clnt, &gss_upcall_ops_v1, 782 clnt, &gss_upcall_ops_v1,
783 RPC_PIPE_WAIT_FOR_OPEN); 783 RPC_PIPE_WAIT_FOR_OPEN);
@@ -786,7 +786,7 @@ gss_create(struct rpc_clnt *clnt, rpc_authflavor_t flavor)
786 goto err_put_mech; 786 goto err_put_mech;
787 } 787 }
788 788
789 gss_auth->dentry[0] = rpc_mkpipe(clnt->cl_dentry, 789 gss_auth->dentry[0] = rpc_mkpipe(clnt->cl_path.dentry,
790 gss_auth->mech->gm_name, 790 gss_auth->mech->gm_name,
791 clnt, &gss_upcall_ops_v0, 791 clnt, &gss_upcall_ops_v0,
792 RPC_PIPE_WAIT_FOR_OPEN); 792 RPC_PIPE_WAIT_FOR_OPEN);
@@ -1507,7 +1507,7 @@ static const struct rpc_credops gss_nullops = {
1507 .crunwrap_resp = gss_unwrap_resp, 1507 .crunwrap_resp = gss_unwrap_resp,
1508}; 1508};
1509 1509
1510static struct rpc_pipe_ops gss_upcall_ops_v0 = { 1510static const struct rpc_pipe_ops gss_upcall_ops_v0 = {
1511 .upcall = gss_pipe_upcall, 1511 .upcall = gss_pipe_upcall,
1512 .downcall = gss_pipe_downcall, 1512 .downcall = gss_pipe_downcall,
1513 .destroy_msg = gss_pipe_destroy_msg, 1513 .destroy_msg = gss_pipe_destroy_msg,
@@ -1515,7 +1515,7 @@ static struct rpc_pipe_ops gss_upcall_ops_v0 = {
1515 .release_pipe = gss_pipe_release, 1515 .release_pipe = gss_pipe_release,
1516}; 1516};
1517 1517
1518static struct rpc_pipe_ops gss_upcall_ops_v1 = { 1518static const struct rpc_pipe_ops gss_upcall_ops_v1 = {
1519 .upcall = gss_pipe_upcall, 1519 .upcall = gss_pipe_upcall,
1520 .downcall = gss_pipe_downcall, 1520 .downcall = gss_pipe_downcall,
1521 .destroy_msg = gss_pipe_destroy_msg, 1521 .destroy_msg = gss_pipe_destroy_msg,
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 2278a50c6444..2e6a148d277c 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -181,6 +181,11 @@ static void rsi_request(struct cache_detail *cd,
181 (*bpp)[-1] = '\n'; 181 (*bpp)[-1] = '\n';
182} 182}
183 183
184static int rsi_upcall(struct cache_detail *cd, struct cache_head *h)
185{
186 return sunrpc_cache_pipe_upcall(cd, h, rsi_request);
187}
188
184 189
185static int rsi_parse(struct cache_detail *cd, 190static int rsi_parse(struct cache_detail *cd,
186 char *mesg, int mlen) 191 char *mesg, int mlen)
@@ -270,7 +275,7 @@ static struct cache_detail rsi_cache = {
270 .hash_table = rsi_table, 275 .hash_table = rsi_table,
271 .name = "auth.rpcsec.init", 276 .name = "auth.rpcsec.init",
272 .cache_put = rsi_put, 277 .cache_put = rsi_put,
273 .cache_request = rsi_request, 278 .cache_upcall = rsi_upcall,
274 .cache_parse = rsi_parse, 279 .cache_parse = rsi_parse,
275 .match = rsi_match, 280 .match = rsi_match,
276 .init = rsi_init, 281 .init = rsi_init,
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index ff0c23053d2f..45cdaff9b361 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -27,10 +27,12 @@
27#include <linux/net.h> 27#include <linux/net.h>
28#include <linux/workqueue.h> 28#include <linux/workqueue.h>
29#include <linux/mutex.h> 29#include <linux/mutex.h>
30#include <linux/pagemap.h>
30#include <asm/ioctls.h> 31#include <asm/ioctls.h>
31#include <linux/sunrpc/types.h> 32#include <linux/sunrpc/types.h>
32#include <linux/sunrpc/cache.h> 33#include <linux/sunrpc/cache.h>
33#include <linux/sunrpc/stats.h> 34#include <linux/sunrpc/stats.h>
35#include <linux/sunrpc/rpc_pipe_fs.h>
34 36
35#define RPCDBG_FACILITY RPCDBG_CACHE 37#define RPCDBG_FACILITY RPCDBG_CACHE
36 38
@@ -175,7 +177,13 @@ struct cache_head *sunrpc_cache_update(struct cache_detail *detail,
175} 177}
176EXPORT_SYMBOL_GPL(sunrpc_cache_update); 178EXPORT_SYMBOL_GPL(sunrpc_cache_update);
177 179
178static int cache_make_upcall(struct cache_detail *detail, struct cache_head *h); 180static int cache_make_upcall(struct cache_detail *cd, struct cache_head *h)
181{
182 if (!cd->cache_upcall)
183 return -EINVAL;
184 return cd->cache_upcall(cd, h);
185}
186
179/* 187/*
180 * This is the generic cache management routine for all 188 * This is the generic cache management routine for all
181 * the authentication caches. 189 * the authentication caches.
@@ -284,76 +292,11 @@ static DEFINE_SPINLOCK(cache_list_lock);
284static struct cache_detail *current_detail; 292static struct cache_detail *current_detail;
285static int current_index; 293static int current_index;
286 294
287static const struct file_operations cache_file_operations;
288static const struct file_operations content_file_operations;
289static const struct file_operations cache_flush_operations;
290
291static void do_cache_clean(struct work_struct *work); 295static void do_cache_clean(struct work_struct *work);
292static DECLARE_DELAYED_WORK(cache_cleaner, do_cache_clean); 296static DECLARE_DELAYED_WORK(cache_cleaner, do_cache_clean);
293 297
294static void remove_cache_proc_entries(struct cache_detail *cd) 298static void sunrpc_init_cache_detail(struct cache_detail *cd)
295{
296 if (cd->proc_ent == NULL)
297 return;
298 if (cd->flush_ent)
299 remove_proc_entry("flush", cd->proc_ent);
300 if (cd->channel_ent)
301 remove_proc_entry("channel", cd->proc_ent);
302 if (cd->content_ent)
303 remove_proc_entry("content", cd->proc_ent);
304 cd->proc_ent = NULL;
305 remove_proc_entry(cd->name, proc_net_rpc);
306}
307
308#ifdef CONFIG_PROC_FS
309static int create_cache_proc_entries(struct cache_detail *cd)
310{
311 struct proc_dir_entry *p;
312
313 cd->proc_ent = proc_mkdir(cd->name, proc_net_rpc);
314 if (cd->proc_ent == NULL)
315 goto out_nomem;
316 cd->channel_ent = cd->content_ent = NULL;
317
318 p = proc_create_data("flush", S_IFREG|S_IRUSR|S_IWUSR,
319 cd->proc_ent, &cache_flush_operations, cd);
320 cd->flush_ent = p;
321 if (p == NULL)
322 goto out_nomem;
323
324 if (cd->cache_request || cd->cache_parse) {
325 p = proc_create_data("channel", S_IFREG|S_IRUSR|S_IWUSR,
326 cd->proc_ent, &cache_file_operations, cd);
327 cd->channel_ent = p;
328 if (p == NULL)
329 goto out_nomem;
330 }
331 if (cd->cache_show) {
332 p = proc_create_data("content", S_IFREG|S_IRUSR|S_IWUSR,
333 cd->proc_ent, &content_file_operations, cd);
334 cd->content_ent = p;
335 if (p == NULL)
336 goto out_nomem;
337 }
338 return 0;
339out_nomem:
340 remove_cache_proc_entries(cd);
341 return -ENOMEM;
342}
343#else /* CONFIG_PROC_FS */
344static int create_cache_proc_entries(struct cache_detail *cd)
345{
346 return 0;
347}
348#endif
349
350int cache_register(struct cache_detail *cd)
351{ 299{
352 int ret;
353
354 ret = create_cache_proc_entries(cd);
355 if (ret)
356 return ret;
357 rwlock_init(&cd->hash_lock); 300 rwlock_init(&cd->hash_lock);
358 INIT_LIST_HEAD(&cd->queue); 301 INIT_LIST_HEAD(&cd->queue);
359 spin_lock(&cache_list_lock); 302 spin_lock(&cache_list_lock);
@@ -367,11 +310,9 @@ int cache_register(struct cache_detail *cd)
367 310
368 /* start the cleaning process */ 311 /* start the cleaning process */
369 schedule_delayed_work(&cache_cleaner, 0); 312 schedule_delayed_work(&cache_cleaner, 0);
370 return 0;
371} 313}
372EXPORT_SYMBOL_GPL(cache_register);
373 314
374void cache_unregister(struct cache_detail *cd) 315static void sunrpc_destroy_cache_detail(struct cache_detail *cd)
375{ 316{
376 cache_purge(cd); 317 cache_purge(cd);
377 spin_lock(&cache_list_lock); 318 spin_lock(&cache_list_lock);
@@ -386,7 +327,6 @@ void cache_unregister(struct cache_detail *cd)
386 list_del_init(&cd->others); 327 list_del_init(&cd->others);
387 write_unlock(&cd->hash_lock); 328 write_unlock(&cd->hash_lock);
388 spin_unlock(&cache_list_lock); 329 spin_unlock(&cache_list_lock);
389 remove_cache_proc_entries(cd);
390 if (list_empty(&cache_list)) { 330 if (list_empty(&cache_list)) {
391 /* module must be being unloaded so its safe to kill the worker */ 331 /* module must be being unloaded so its safe to kill the worker */
392 cancel_delayed_work_sync(&cache_cleaner); 332 cancel_delayed_work_sync(&cache_cleaner);
@@ -395,7 +335,6 @@ void cache_unregister(struct cache_detail *cd)
395out: 335out:
396 printk(KERN_ERR "nfsd: failed to unregister %s cache\n", cd->name); 336 printk(KERN_ERR "nfsd: failed to unregister %s cache\n", cd->name);
397} 337}
398EXPORT_SYMBOL_GPL(cache_unregister);
399 338
400/* clean cache tries to find something to clean 339/* clean cache tries to find something to clean
401 * and cleans it. 340 * and cleans it.
@@ -687,18 +626,18 @@ struct cache_reader {
687 int offset; /* if non-0, we have a refcnt on next request */ 626 int offset; /* if non-0, we have a refcnt on next request */
688}; 627};
689 628
690static ssize_t 629static ssize_t cache_read(struct file *filp, char __user *buf, size_t count,
691cache_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos) 630 loff_t *ppos, struct cache_detail *cd)
692{ 631{
693 struct cache_reader *rp = filp->private_data; 632 struct cache_reader *rp = filp->private_data;
694 struct cache_request *rq; 633 struct cache_request *rq;
695 struct cache_detail *cd = PDE(filp->f_path.dentry->d_inode)->data; 634 struct inode *inode = filp->f_path.dentry->d_inode;
696 int err; 635 int err;
697 636
698 if (count == 0) 637 if (count == 0)
699 return 0; 638 return 0;
700 639
701 mutex_lock(&queue_io_mutex); /* protect against multiple concurrent 640 mutex_lock(&inode->i_mutex); /* protect against multiple concurrent
702 * readers on this file */ 641 * readers on this file */
703 again: 642 again:
704 spin_lock(&queue_lock); 643 spin_lock(&queue_lock);
@@ -711,7 +650,7 @@ cache_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos)
711 } 650 }
712 if (rp->q.list.next == &cd->queue) { 651 if (rp->q.list.next == &cd->queue) {
713 spin_unlock(&queue_lock); 652 spin_unlock(&queue_lock);
714 mutex_unlock(&queue_io_mutex); 653 mutex_unlock(&inode->i_mutex);
715 BUG_ON(rp->offset); 654 BUG_ON(rp->offset);
716 return 0; 655 return 0;
717 } 656 }
@@ -758,49 +697,90 @@ cache_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos)
758 } 697 }
759 if (err == -EAGAIN) 698 if (err == -EAGAIN)
760 goto again; 699 goto again;
761 mutex_unlock(&queue_io_mutex); 700 mutex_unlock(&inode->i_mutex);
762 return err ? err : count; 701 return err ? err : count;
763} 702}
764 703
765static char write_buf[8192]; /* protected by queue_io_mutex */ 704static ssize_t cache_do_downcall(char *kaddr, const char __user *buf,
705 size_t count, struct cache_detail *cd)
706{
707 ssize_t ret;
766 708
767static ssize_t 709 if (copy_from_user(kaddr, buf, count))
768cache_write(struct file *filp, const char __user *buf, size_t count, 710 return -EFAULT;
769 loff_t *ppos) 711 kaddr[count] = '\0';
712 ret = cd->cache_parse(cd, kaddr, count);
713 if (!ret)
714 ret = count;
715 return ret;
716}
717
718static ssize_t cache_slow_downcall(const char __user *buf,
719 size_t count, struct cache_detail *cd)
770{ 720{
771 int err; 721 static char write_buf[8192]; /* protected by queue_io_mutex */
772 struct cache_detail *cd = PDE(filp->f_path.dentry->d_inode)->data; 722 ssize_t ret = -EINVAL;
773 723
774 if (count == 0)
775 return 0;
776 if (count >= sizeof(write_buf)) 724 if (count >= sizeof(write_buf))
777 return -EINVAL; 725 goto out;
778
779 mutex_lock(&queue_io_mutex); 726 mutex_lock(&queue_io_mutex);
727 ret = cache_do_downcall(write_buf, buf, count, cd);
728 mutex_unlock(&queue_io_mutex);
729out:
730 return ret;
731}
780 732
781 if (copy_from_user(write_buf, buf, count)) { 733static ssize_t cache_downcall(struct address_space *mapping,
782 mutex_unlock(&queue_io_mutex); 734 const char __user *buf,
783 return -EFAULT; 735 size_t count, struct cache_detail *cd)
784 } 736{
785 write_buf[count] = '\0'; 737 struct page *page;
786 if (cd->cache_parse) 738 char *kaddr;
787 err = cd->cache_parse(cd, write_buf, count); 739 ssize_t ret = -ENOMEM;
788 else 740
789 err = -EINVAL; 741 if (count >= PAGE_CACHE_SIZE)
742 goto out_slow;
743
744 page = find_or_create_page(mapping, 0, GFP_KERNEL);
745 if (!page)
746 goto out_slow;
747
748 kaddr = kmap(page);
749 ret = cache_do_downcall(kaddr, buf, count, cd);
750 kunmap(page);
751 unlock_page(page);
752 page_cache_release(page);
753 return ret;
754out_slow:
755 return cache_slow_downcall(buf, count, cd);
756}
790 757
791 mutex_unlock(&queue_io_mutex); 758static ssize_t cache_write(struct file *filp, const char __user *buf,
792 return err ? err : count; 759 size_t count, loff_t *ppos,
760 struct cache_detail *cd)
761{
762 struct address_space *mapping = filp->f_mapping;
763 struct inode *inode = filp->f_path.dentry->d_inode;
764 ssize_t ret = -EINVAL;
765
766 if (!cd->cache_parse)
767 goto out;
768
769 mutex_lock(&inode->i_mutex);
770 ret = cache_downcall(mapping, buf, count, cd);
771 mutex_unlock(&inode->i_mutex);
772out:
773 return ret;
793} 774}
794 775
795static DECLARE_WAIT_QUEUE_HEAD(queue_wait); 776static DECLARE_WAIT_QUEUE_HEAD(queue_wait);
796 777
797static unsigned int 778static unsigned int cache_poll(struct file *filp, poll_table *wait,
798cache_poll(struct file *filp, poll_table *wait) 779 struct cache_detail *cd)
799{ 780{
800 unsigned int mask; 781 unsigned int mask;
801 struct cache_reader *rp = filp->private_data; 782 struct cache_reader *rp = filp->private_data;
802 struct cache_queue *cq; 783 struct cache_queue *cq;
803 struct cache_detail *cd = PDE(filp->f_path.dentry->d_inode)->data;
804 784
805 poll_wait(filp, &queue_wait, wait); 785 poll_wait(filp, &queue_wait, wait);
806 786
@@ -822,14 +802,13 @@ cache_poll(struct file *filp, poll_table *wait)
822 return mask; 802 return mask;
823} 803}
824 804
825static int 805static int cache_ioctl(struct inode *ino, struct file *filp,
826cache_ioctl(struct inode *ino, struct file *filp, 806 unsigned int cmd, unsigned long arg,
827 unsigned int cmd, unsigned long arg) 807 struct cache_detail *cd)
828{ 808{
829 int len = 0; 809 int len = 0;
830 struct cache_reader *rp = filp->private_data; 810 struct cache_reader *rp = filp->private_data;
831 struct cache_queue *cq; 811 struct cache_queue *cq;
832 struct cache_detail *cd = PDE(ino)->data;
833 812
834 if (cmd != FIONREAD || !rp) 813 if (cmd != FIONREAD || !rp)
835 return -EINVAL; 814 return -EINVAL;
@@ -852,15 +831,15 @@ cache_ioctl(struct inode *ino, struct file *filp,
852 return put_user(len, (int __user *)arg); 831 return put_user(len, (int __user *)arg);
853} 832}
854 833
855static int 834static int cache_open(struct inode *inode, struct file *filp,
856cache_open(struct inode *inode, struct file *filp) 835 struct cache_detail *cd)
857{ 836{
858 struct cache_reader *rp = NULL; 837 struct cache_reader *rp = NULL;
859 838
839 if (!cd || !try_module_get(cd->owner))
840 return -EACCES;
860 nonseekable_open(inode, filp); 841 nonseekable_open(inode, filp);
861 if (filp->f_mode & FMODE_READ) { 842 if (filp->f_mode & FMODE_READ) {
862 struct cache_detail *cd = PDE(inode)->data;
863
864 rp = kmalloc(sizeof(*rp), GFP_KERNEL); 843 rp = kmalloc(sizeof(*rp), GFP_KERNEL);
865 if (!rp) 844 if (!rp)
866 return -ENOMEM; 845 return -ENOMEM;
@@ -875,11 +854,10 @@ cache_open(struct inode *inode, struct file *filp)
875 return 0; 854 return 0;
876} 855}
877 856
878static int 857static int cache_release(struct inode *inode, struct file *filp,
879cache_release(struct inode *inode, struct file *filp) 858 struct cache_detail *cd)
880{ 859{
881 struct cache_reader *rp = filp->private_data; 860 struct cache_reader *rp = filp->private_data;
882 struct cache_detail *cd = PDE(inode)->data;
883 861
884 if (rp) { 862 if (rp) {
885 spin_lock(&queue_lock); 863 spin_lock(&queue_lock);
@@ -903,23 +881,12 @@ cache_release(struct inode *inode, struct file *filp)
903 cd->last_close = get_seconds(); 881 cd->last_close = get_seconds();
904 atomic_dec(&cd->readers); 882 atomic_dec(&cd->readers);
905 } 883 }
884 module_put(cd->owner);
906 return 0; 885 return 0;
907} 886}
908 887
909 888
910 889
911static const struct file_operations cache_file_operations = {
912 .owner = THIS_MODULE,
913 .llseek = no_llseek,
914 .read = cache_read,
915 .write = cache_write,
916 .poll = cache_poll,
917 .ioctl = cache_ioctl, /* for FIONREAD */
918 .open = cache_open,
919 .release = cache_release,
920};
921
922
923static void queue_loose(struct cache_detail *detail, struct cache_head *ch) 890static void queue_loose(struct cache_detail *detail, struct cache_head *ch)
924{ 891{
925 struct cache_queue *cq; 892 struct cache_queue *cq;
@@ -1020,15 +987,21 @@ static void warn_no_listener(struct cache_detail *detail)
1020 if (detail->last_warn != detail->last_close) { 987 if (detail->last_warn != detail->last_close) {
1021 detail->last_warn = detail->last_close; 988 detail->last_warn = detail->last_close;
1022 if (detail->warn_no_listener) 989 if (detail->warn_no_listener)
1023 detail->warn_no_listener(detail); 990 detail->warn_no_listener(detail, detail->last_close != 0);
1024 } 991 }
1025} 992}
1026 993
1027/* 994/*
1028 * register an upcall request to user-space. 995 * register an upcall request to user-space and queue it up for read() by the
996 * upcall daemon.
997 *
1029 * Each request is at most one page long. 998 * Each request is at most one page long.
1030 */ 999 */
1031static int cache_make_upcall(struct cache_detail *detail, struct cache_head *h) 1000int sunrpc_cache_pipe_upcall(struct cache_detail *detail, struct cache_head *h,
1001 void (*cache_request)(struct cache_detail *,
1002 struct cache_head *,
1003 char **,
1004 int *))
1032{ 1005{
1033 1006
1034 char *buf; 1007 char *buf;
@@ -1036,9 +1009,6 @@ static int cache_make_upcall(struct cache_detail *detail, struct cache_head *h)
1036 char *bp; 1009 char *bp;
1037 int len; 1010 int len;
1038 1011
1039 if (detail->cache_request == NULL)
1040 return -EINVAL;
1041
1042 if (atomic_read(&detail->readers) == 0 && 1012 if (atomic_read(&detail->readers) == 0 &&
1043 detail->last_close < get_seconds() - 30) { 1013 detail->last_close < get_seconds() - 30) {
1044 warn_no_listener(detail); 1014 warn_no_listener(detail);
@@ -1057,7 +1027,7 @@ static int cache_make_upcall(struct cache_detail *detail, struct cache_head *h)
1057 1027
1058 bp = buf; len = PAGE_SIZE; 1028 bp = buf; len = PAGE_SIZE;
1059 1029
1060 detail->cache_request(detail, h, &bp, &len); 1030 cache_request(detail, h, &bp, &len);
1061 1031
1062 if (len < 0) { 1032 if (len < 0) {
1063 kfree(buf); 1033 kfree(buf);
@@ -1075,6 +1045,7 @@ static int cache_make_upcall(struct cache_detail *detail, struct cache_head *h)
1075 wake_up(&queue_wait); 1045 wake_up(&queue_wait);
1076 return 0; 1046 return 0;
1077} 1047}
1048EXPORT_SYMBOL_GPL(sunrpc_cache_pipe_upcall);
1078 1049
1079/* 1050/*
1080 * parse a message from user-space and pass it 1051 * parse a message from user-space and pass it
@@ -1242,11 +1213,13 @@ static const struct seq_operations cache_content_op = {
1242 .show = c_show, 1213 .show = c_show,
1243}; 1214};
1244 1215
1245static int content_open(struct inode *inode, struct file *file) 1216static int content_open(struct inode *inode, struct file *file,
1217 struct cache_detail *cd)
1246{ 1218{
1247 struct handle *han; 1219 struct handle *han;
1248 struct cache_detail *cd = PDE(inode)->data;
1249 1220
1221 if (!cd || !try_module_get(cd->owner))
1222 return -EACCES;
1250 han = __seq_open_private(file, &cache_content_op, sizeof(*han)); 1223 han = __seq_open_private(file, &cache_content_op, sizeof(*han));
1251 if (han == NULL) 1224 if (han == NULL)
1252 return -ENOMEM; 1225 return -ENOMEM;
@@ -1255,17 +1228,33 @@ static int content_open(struct inode *inode, struct file *file)
1255 return 0; 1228 return 0;
1256} 1229}
1257 1230
1258static const struct file_operations content_file_operations = { 1231static int content_release(struct inode *inode, struct file *file,
1259 .open = content_open, 1232 struct cache_detail *cd)
1260 .read = seq_read, 1233{
1261 .llseek = seq_lseek, 1234 int ret = seq_release_private(inode, file);
1262 .release = seq_release_private, 1235 module_put(cd->owner);
1263}; 1236 return ret;
1237}
1238
1239static int open_flush(struct inode *inode, struct file *file,
1240 struct cache_detail *cd)
1241{
1242 if (!cd || !try_module_get(cd->owner))
1243 return -EACCES;
1244 return nonseekable_open(inode, file);
1245}
1246
1247static int release_flush(struct inode *inode, struct file *file,
1248 struct cache_detail *cd)
1249{
1250 module_put(cd->owner);
1251 return 0;
1252}
1264 1253
1265static ssize_t read_flush(struct file *file, char __user *buf, 1254static ssize_t read_flush(struct file *file, char __user *buf,
1266 size_t count, loff_t *ppos) 1255 size_t count, loff_t *ppos,
1256 struct cache_detail *cd)
1267{ 1257{
1268 struct cache_detail *cd = PDE(file->f_path.dentry->d_inode)->data;
1269 char tbuf[20]; 1258 char tbuf[20];
1270 unsigned long p = *ppos; 1259 unsigned long p = *ppos;
1271 size_t len; 1260 size_t len;
@@ -1283,10 +1272,10 @@ static ssize_t read_flush(struct file *file, char __user *buf,
1283 return len; 1272 return len;
1284} 1273}
1285 1274
1286static ssize_t write_flush(struct file * file, const char __user * buf, 1275static ssize_t write_flush(struct file *file, const char __user *buf,
1287 size_t count, loff_t *ppos) 1276 size_t count, loff_t *ppos,
1277 struct cache_detail *cd)
1288{ 1278{
1289 struct cache_detail *cd = PDE(file->f_path.dentry->d_inode)->data;
1290 char tbuf[20]; 1279 char tbuf[20];
1291 char *ep; 1280 char *ep;
1292 long flushtime; 1281 long flushtime;
@@ -1307,8 +1296,343 @@ static ssize_t write_flush(struct file * file, const char __user * buf,
1307 return count; 1296 return count;
1308} 1297}
1309 1298
1310static const struct file_operations cache_flush_operations = { 1299static ssize_t cache_read_procfs(struct file *filp, char __user *buf,
1311 .open = nonseekable_open, 1300 size_t count, loff_t *ppos)
1312 .read = read_flush, 1301{
1313 .write = write_flush, 1302 struct cache_detail *cd = PDE(filp->f_path.dentry->d_inode)->data;
1303
1304 return cache_read(filp, buf, count, ppos, cd);
1305}
1306
1307static ssize_t cache_write_procfs(struct file *filp, const char __user *buf,
1308 size_t count, loff_t *ppos)
1309{
1310 struct cache_detail *cd = PDE(filp->f_path.dentry->d_inode)->data;
1311
1312 return cache_write(filp, buf, count, ppos, cd);
1313}
1314
1315static unsigned int cache_poll_procfs(struct file *filp, poll_table *wait)
1316{
1317 struct cache_detail *cd = PDE(filp->f_path.dentry->d_inode)->data;
1318
1319 return cache_poll(filp, wait, cd);
1320}
1321
1322static int cache_ioctl_procfs(struct inode *inode, struct file *filp,
1323 unsigned int cmd, unsigned long arg)
1324{
1325 struct cache_detail *cd = PDE(inode)->data;
1326
1327 return cache_ioctl(inode, filp, cmd, arg, cd);
1328}
1329
1330static int cache_open_procfs(struct inode *inode, struct file *filp)
1331{
1332 struct cache_detail *cd = PDE(inode)->data;
1333
1334 return cache_open(inode, filp, cd);
1335}
1336
1337static int cache_release_procfs(struct inode *inode, struct file *filp)
1338{
1339 struct cache_detail *cd = PDE(inode)->data;
1340
1341 return cache_release(inode, filp, cd);
1342}
1343
1344static const struct file_operations cache_file_operations_procfs = {
1345 .owner = THIS_MODULE,
1346 .llseek = no_llseek,
1347 .read = cache_read_procfs,
1348 .write = cache_write_procfs,
1349 .poll = cache_poll_procfs,
1350 .ioctl = cache_ioctl_procfs, /* for FIONREAD */
1351 .open = cache_open_procfs,
1352 .release = cache_release_procfs,
1314}; 1353};
1354
1355static int content_open_procfs(struct inode *inode, struct file *filp)
1356{
1357 struct cache_detail *cd = PDE(inode)->data;
1358
1359 return content_open(inode, filp, cd);
1360}
1361
1362static int content_release_procfs(struct inode *inode, struct file *filp)
1363{
1364 struct cache_detail *cd = PDE(inode)->data;
1365
1366 return content_release(inode, filp, cd);
1367}
1368
1369static const struct file_operations content_file_operations_procfs = {
1370 .open = content_open_procfs,
1371 .read = seq_read,
1372 .llseek = seq_lseek,
1373 .release = content_release_procfs,
1374};
1375
1376static int open_flush_procfs(struct inode *inode, struct file *filp)
1377{
1378 struct cache_detail *cd = PDE(inode)->data;
1379
1380 return open_flush(inode, filp, cd);
1381}
1382
1383static int release_flush_procfs(struct inode *inode, struct file *filp)
1384{
1385 struct cache_detail *cd = PDE(inode)->data;
1386
1387 return release_flush(inode, filp, cd);
1388}
1389
1390static ssize_t read_flush_procfs(struct file *filp, char __user *buf,
1391 size_t count, loff_t *ppos)
1392{
1393 struct cache_detail *cd = PDE(filp->f_path.dentry->d_inode)->data;
1394
1395 return read_flush(filp, buf, count, ppos, cd);
1396}
1397
1398static ssize_t write_flush_procfs(struct file *filp,
1399 const char __user *buf,
1400 size_t count, loff_t *ppos)
1401{
1402 struct cache_detail *cd = PDE(filp->f_path.dentry->d_inode)->data;
1403
1404 return write_flush(filp, buf, count, ppos, cd);
1405}
1406
1407static const struct file_operations cache_flush_operations_procfs = {
1408 .open = open_flush_procfs,
1409 .read = read_flush_procfs,
1410 .write = write_flush_procfs,
1411 .release = release_flush_procfs,
1412};
1413
1414static void remove_cache_proc_entries(struct cache_detail *cd)
1415{
1416 if (cd->u.procfs.proc_ent == NULL)
1417 return;
1418 if (cd->u.procfs.flush_ent)
1419 remove_proc_entry("flush", cd->u.procfs.proc_ent);
1420 if (cd->u.procfs.channel_ent)
1421 remove_proc_entry("channel", cd->u.procfs.proc_ent);
1422 if (cd->u.procfs.content_ent)
1423 remove_proc_entry("content", cd->u.procfs.proc_ent);
1424 cd->u.procfs.proc_ent = NULL;
1425 remove_proc_entry(cd->name, proc_net_rpc);
1426}
1427
1428#ifdef CONFIG_PROC_FS
1429static int create_cache_proc_entries(struct cache_detail *cd)
1430{
1431 struct proc_dir_entry *p;
1432
1433 cd->u.procfs.proc_ent = proc_mkdir(cd->name, proc_net_rpc);
1434 if (cd->u.procfs.proc_ent == NULL)
1435 goto out_nomem;
1436 cd->u.procfs.channel_ent = NULL;
1437 cd->u.procfs.content_ent = NULL;
1438
1439 p = proc_create_data("flush", S_IFREG|S_IRUSR|S_IWUSR,
1440 cd->u.procfs.proc_ent,
1441 &cache_flush_operations_procfs, cd);
1442 cd->u.procfs.flush_ent = p;
1443 if (p == NULL)
1444 goto out_nomem;
1445
1446 if (cd->cache_upcall || cd->cache_parse) {
1447 p = proc_create_data("channel", S_IFREG|S_IRUSR|S_IWUSR,
1448 cd->u.procfs.proc_ent,
1449 &cache_file_operations_procfs, cd);
1450 cd->u.procfs.channel_ent = p;
1451 if (p == NULL)
1452 goto out_nomem;
1453 }
1454 if (cd->cache_show) {
1455 p = proc_create_data("content", S_IFREG|S_IRUSR|S_IWUSR,
1456 cd->u.procfs.proc_ent,
1457 &content_file_operations_procfs, cd);
1458 cd->u.procfs.content_ent = p;
1459 if (p == NULL)
1460 goto out_nomem;
1461 }
1462 return 0;
1463out_nomem:
1464 remove_cache_proc_entries(cd);
1465 return -ENOMEM;
1466}
1467#else /* CONFIG_PROC_FS */
1468static int create_cache_proc_entries(struct cache_detail *cd)
1469{
1470 return 0;
1471}
1472#endif
1473
1474int cache_register(struct cache_detail *cd)
1475{
1476 int ret;
1477
1478 sunrpc_init_cache_detail(cd);
1479 ret = create_cache_proc_entries(cd);
1480 if (ret)
1481 sunrpc_destroy_cache_detail(cd);
1482 return ret;
1483}
1484EXPORT_SYMBOL_GPL(cache_register);
1485
1486void cache_unregister(struct cache_detail *cd)
1487{
1488 remove_cache_proc_entries(cd);
1489 sunrpc_destroy_cache_detail(cd);
1490}
1491EXPORT_SYMBOL_GPL(cache_unregister);
1492
1493static ssize_t cache_read_pipefs(struct file *filp, char __user *buf,
1494 size_t count, loff_t *ppos)
1495{
1496 struct cache_detail *cd = RPC_I(filp->f_path.dentry->d_inode)->private;
1497
1498 return cache_read(filp, buf, count, ppos, cd);
1499}
1500
1501static ssize_t cache_write_pipefs(struct file *filp, const char __user *buf,
1502 size_t count, loff_t *ppos)
1503{
1504 struct cache_detail *cd = RPC_I(filp->f_path.dentry->d_inode)->private;
1505
1506 return cache_write(filp, buf, count, ppos, cd);
1507}
1508
1509static unsigned int cache_poll_pipefs(struct file *filp, poll_table *wait)
1510{
1511 struct cache_detail *cd = RPC_I(filp->f_path.dentry->d_inode)->private;
1512
1513 return cache_poll(filp, wait, cd);
1514}
1515
1516static int cache_ioctl_pipefs(struct inode *inode, struct file *filp,
1517 unsigned int cmd, unsigned long arg)
1518{
1519 struct cache_detail *cd = RPC_I(inode)->private;
1520
1521 return cache_ioctl(inode, filp, cmd, arg, cd);
1522}
1523
1524static int cache_open_pipefs(struct inode *inode, struct file *filp)
1525{
1526 struct cache_detail *cd = RPC_I(inode)->private;
1527
1528 return cache_open(inode, filp, cd);
1529}
1530
1531static int cache_release_pipefs(struct inode *inode, struct file *filp)
1532{
1533 struct cache_detail *cd = RPC_I(inode)->private;
1534
1535 return cache_release(inode, filp, cd);
1536}
1537
1538const struct file_operations cache_file_operations_pipefs = {
1539 .owner = THIS_MODULE,
1540 .llseek = no_llseek,
1541 .read = cache_read_pipefs,
1542 .write = cache_write_pipefs,
1543 .poll = cache_poll_pipefs,
1544 .ioctl = cache_ioctl_pipefs, /* for FIONREAD */
1545 .open = cache_open_pipefs,
1546 .release = cache_release_pipefs,
1547};
1548
1549static int content_open_pipefs(struct inode *inode, struct file *filp)
1550{
1551 struct cache_detail *cd = RPC_I(inode)->private;
1552
1553 return content_open(inode, filp, cd);
1554}
1555
1556static int content_release_pipefs(struct inode *inode, struct file *filp)
1557{
1558 struct cache_detail *cd = RPC_I(inode)->private;
1559
1560 return content_release(inode, filp, cd);
1561}
1562
1563const struct file_operations content_file_operations_pipefs = {
1564 .open = content_open_pipefs,
1565 .read = seq_read,
1566 .llseek = seq_lseek,
1567 .release = content_release_pipefs,
1568};
1569
1570static int open_flush_pipefs(struct inode *inode, struct file *filp)
1571{
1572 struct cache_detail *cd = RPC_I(inode)->private;
1573
1574 return open_flush(inode, filp, cd);
1575}
1576
1577static int release_flush_pipefs(struct inode *inode, struct file *filp)
1578{
1579 struct cache_detail *cd = RPC_I(inode)->private;
1580
1581 return release_flush(inode, filp, cd);
1582}
1583
1584static ssize_t read_flush_pipefs(struct file *filp, char __user *buf,
1585 size_t count, loff_t *ppos)
1586{
1587 struct cache_detail *cd = RPC_I(filp->f_path.dentry->d_inode)->private;
1588
1589 return read_flush(filp, buf, count, ppos, cd);
1590}
1591
1592static ssize_t write_flush_pipefs(struct file *filp,
1593 const char __user *buf,
1594 size_t count, loff_t *ppos)
1595{
1596 struct cache_detail *cd = RPC_I(filp->f_path.dentry->d_inode)->private;
1597
1598 return write_flush(filp, buf, count, ppos, cd);
1599}
1600
1601const struct file_operations cache_flush_operations_pipefs = {
1602 .open = open_flush_pipefs,
1603 .read = read_flush_pipefs,
1604 .write = write_flush_pipefs,
1605 .release = release_flush_pipefs,
1606};
1607
1608int sunrpc_cache_register_pipefs(struct dentry *parent,
1609 const char *name, mode_t umode,
1610 struct cache_detail *cd)
1611{
1612 struct qstr q;
1613 struct dentry *dir;
1614 int ret = 0;
1615
1616 sunrpc_init_cache_detail(cd);
1617 q.name = name;
1618 q.len = strlen(name);
1619 q.hash = full_name_hash(q.name, q.len);
1620 dir = rpc_create_cache_dir(parent, &q, umode, cd);
1621 if (!IS_ERR(dir))
1622 cd->u.pipefs.dir = dir;
1623 else {
1624 sunrpc_destroy_cache_detail(cd);
1625 ret = PTR_ERR(dir);
1626 }
1627 return ret;
1628}
1629EXPORT_SYMBOL_GPL(sunrpc_cache_register_pipefs);
1630
1631void sunrpc_cache_unregister_pipefs(struct cache_detail *cd)
1632{
1633 rpc_remove_cache_dir(cd->u.pipefs.dir);
1634 cd->u.pipefs.dir = NULL;
1635 sunrpc_destroy_cache_detail(cd);
1636}
1637EXPORT_SYMBOL_GPL(sunrpc_cache_unregister_pipefs);
1638
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index df1039f077c2..fac0ca93f06b 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -27,6 +27,8 @@
27#include <linux/types.h> 27#include <linux/types.h>
28#include <linux/kallsyms.h> 28#include <linux/kallsyms.h>
29#include <linux/mm.h> 29#include <linux/mm.h>
30#include <linux/namei.h>
31#include <linux/mount.h>
30#include <linux/slab.h> 32#include <linux/slab.h>
31#include <linux/utsname.h> 33#include <linux/utsname.h>
32#include <linux/workqueue.h> 34#include <linux/workqueue.h>
@@ -97,33 +99,49 @@ static int
97rpc_setup_pipedir(struct rpc_clnt *clnt, char *dir_name) 99rpc_setup_pipedir(struct rpc_clnt *clnt, char *dir_name)
98{ 100{
99 static uint32_t clntid; 101 static uint32_t clntid;
102 struct nameidata nd;
103 struct path path;
104 char name[15];
105 struct qstr q = {
106 .name = name,
107 };
100 int error; 108 int error;
101 109
102 clnt->cl_vfsmnt = ERR_PTR(-ENOENT); 110 clnt->cl_path.mnt = ERR_PTR(-ENOENT);
103 clnt->cl_dentry = ERR_PTR(-ENOENT); 111 clnt->cl_path.dentry = ERR_PTR(-ENOENT);
104 if (dir_name == NULL) 112 if (dir_name == NULL)
105 return 0; 113 return 0;
106 114
107 clnt->cl_vfsmnt = rpc_get_mount(); 115 path.mnt = rpc_get_mount();
108 if (IS_ERR(clnt->cl_vfsmnt)) 116 if (IS_ERR(path.mnt))
109 return PTR_ERR(clnt->cl_vfsmnt); 117 return PTR_ERR(path.mnt);
118 error = vfs_path_lookup(path.mnt->mnt_root, path.mnt, dir_name, 0, &nd);
119 if (error)
120 goto err;
110 121
111 for (;;) { 122 for (;;) {
112 snprintf(clnt->cl_pathname, sizeof(clnt->cl_pathname), 123 q.len = snprintf(name, sizeof(name), "clnt%x", (unsigned int)clntid++);
113 "%s/clnt%x", dir_name, 124 name[sizeof(name) - 1] = '\0';
114 (unsigned int)clntid++); 125 q.hash = full_name_hash(q.name, q.len);
115 clnt->cl_pathname[sizeof(clnt->cl_pathname) - 1] = '\0'; 126 path.dentry = rpc_create_client_dir(nd.path.dentry, &q, clnt);
116 clnt->cl_dentry = rpc_mkdir(clnt->cl_pathname, clnt); 127 if (!IS_ERR(path.dentry))
117 if (!IS_ERR(clnt->cl_dentry)) 128 break;
118 return 0; 129 error = PTR_ERR(path.dentry);
119 error = PTR_ERR(clnt->cl_dentry);
120 if (error != -EEXIST) { 130 if (error != -EEXIST) {
121 printk(KERN_INFO "RPC: Couldn't create pipefs entry %s, error %d\n", 131 printk(KERN_INFO "RPC: Couldn't create pipefs entry"
122 clnt->cl_pathname, error); 132 " %s/%s, error %d\n",
123 rpc_put_mount(); 133 dir_name, name, error);
124 return error; 134 goto err_path_put;
125 } 135 }
126 } 136 }
137 path_put(&nd.path);
138 clnt->cl_path = path;
139 return 0;
140err_path_put:
141 path_put(&nd.path);
142err:
143 rpc_put_mount();
144 return error;
127} 145}
128 146
129static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, struct rpc_xprt *xprt) 147static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, struct rpc_xprt *xprt)
@@ -231,8 +249,8 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru
231 return clnt; 249 return clnt;
232 250
233out_no_auth: 251out_no_auth:
234 if (!IS_ERR(clnt->cl_dentry)) { 252 if (!IS_ERR(clnt->cl_path.dentry)) {
235 rpc_rmdir(clnt->cl_dentry); 253 rpc_remove_client_dir(clnt->cl_path.dentry);
236 rpc_put_mount(); 254 rpc_put_mount();
237 } 255 }
238out_no_path: 256out_no_path:
@@ -423,8 +441,8 @@ rpc_free_client(struct kref *kref)
423 441
424 dprintk("RPC: destroying %s client for %s\n", 442 dprintk("RPC: destroying %s client for %s\n",
425 clnt->cl_protname, clnt->cl_server); 443 clnt->cl_protname, clnt->cl_server);
426 if (!IS_ERR(clnt->cl_dentry)) { 444 if (!IS_ERR(clnt->cl_path.dentry)) {
427 rpc_rmdir(clnt->cl_dentry); 445 rpc_remove_client_dir(clnt->cl_path.dentry);
428 rpc_put_mount(); 446 rpc_put_mount();
429 } 447 }
430 if (clnt->cl_parent != clnt) { 448 if (clnt->cl_parent != clnt) {
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 9ced0628d69c..7f676bdf70d3 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -26,6 +26,7 @@
26#include <linux/sunrpc/clnt.h> 26#include <linux/sunrpc/clnt.h>
27#include <linux/workqueue.h> 27#include <linux/workqueue.h>
28#include <linux/sunrpc/rpc_pipe_fs.h> 28#include <linux/sunrpc/rpc_pipe_fs.h>
29#include <linux/sunrpc/cache.h>
29 30
30static struct vfsmount *rpc_mount __read_mostly; 31static struct vfsmount *rpc_mount __read_mostly;
31static int rpc_mount_count; 32static int rpc_mount_count;
@@ -125,7 +126,7 @@ static void
125rpc_close_pipes(struct inode *inode) 126rpc_close_pipes(struct inode *inode)
126{ 127{
127 struct rpc_inode *rpci = RPC_I(inode); 128 struct rpc_inode *rpci = RPC_I(inode);
128 struct rpc_pipe_ops *ops; 129 const struct rpc_pipe_ops *ops;
129 int need_release; 130 int need_release;
130 131
131 mutex_lock(&inode->i_mutex); 132 mutex_lock(&inode->i_mutex);
@@ -398,66 +399,12 @@ static const struct file_operations rpc_info_operations = {
398 399
399 400
400/* 401/*
401 * We have a single directory with 1 node in it.
402 */
403enum {
404 RPCAUTH_Root = 1,
405 RPCAUTH_lockd,
406 RPCAUTH_mount,
407 RPCAUTH_nfs,
408 RPCAUTH_portmap,
409 RPCAUTH_statd,
410 RPCAUTH_nfsd4_cb,
411 RPCAUTH_RootEOF
412};
413
414/*
415 * Description of fs contents. 402 * Description of fs contents.
416 */ 403 */
417struct rpc_filelist { 404struct rpc_filelist {
418 char *name; 405 const char *name;
419 const struct file_operations *i_fop; 406 const struct file_operations *i_fop;
420 int mode; 407 umode_t mode;
421};
422
423static struct rpc_filelist files[] = {
424 [RPCAUTH_lockd] = {
425 .name = "lockd",
426 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
427 },
428 [RPCAUTH_mount] = {
429 .name = "mount",
430 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
431 },
432 [RPCAUTH_nfs] = {
433 .name = "nfs",
434 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
435 },
436 [RPCAUTH_portmap] = {
437 .name = "portmap",
438 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
439 },
440 [RPCAUTH_statd] = {
441 .name = "statd",
442 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
443 },
444 [RPCAUTH_nfsd4_cb] = {
445 .name = "nfsd4_cb",
446 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
447 },
448};
449
450enum {
451 RPCAUTH_info = 2,
452 RPCAUTH_EOF
453};
454
455static struct rpc_filelist authfiles[] = {
456 [RPCAUTH_info] = {
457 .name = "info",
458 .i_fop = &rpc_info_operations,
459 .mode = S_IFREG | S_IRUSR,
460 },
461}; 408};
462 409
463struct vfsmount *rpc_get_mount(void) 410struct vfsmount *rpc_get_mount(void)
@@ -469,11 +416,13 @@ struct vfsmount *rpc_get_mount(void)
469 return ERR_PTR(err); 416 return ERR_PTR(err);
470 return rpc_mount; 417 return rpc_mount;
471} 418}
419EXPORT_SYMBOL_GPL(rpc_get_mount);
472 420
473void rpc_put_mount(void) 421void rpc_put_mount(void)
474{ 422{
475 simple_release_fs(&rpc_mount, &rpc_mount_count); 423 simple_release_fs(&rpc_mount, &rpc_mount_count);
476} 424}
425EXPORT_SYMBOL_GPL(rpc_put_mount);
477 426
478static int rpc_delete_dentry(struct dentry *dentry) 427static int rpc_delete_dentry(struct dentry *dentry)
479{ 428{
@@ -484,39 +433,8 @@ static const struct dentry_operations rpc_dentry_operations = {
484 .d_delete = rpc_delete_dentry, 433 .d_delete = rpc_delete_dentry,
485}; 434};
486 435
487static int
488rpc_lookup_parent(char *path, struct nameidata *nd)
489{
490 struct vfsmount *mnt;
491
492 if (path[0] == '\0')
493 return -ENOENT;
494
495 mnt = rpc_get_mount();
496 if (IS_ERR(mnt)) {
497 printk(KERN_WARNING "%s: %s failed to mount "
498 "pseudofilesystem \n", __FILE__, __func__);
499 return PTR_ERR(mnt);
500 }
501
502 if (vfs_path_lookup(mnt->mnt_root, mnt, path, LOOKUP_PARENT, nd)) {
503 printk(KERN_WARNING "%s: %s failed to find path %s\n",
504 __FILE__, __func__, path);
505 rpc_put_mount();
506 return -ENOENT;
507 }
508 return 0;
509}
510
511static void
512rpc_release_path(struct nameidata *nd)
513{
514 path_put(&nd->path);
515 rpc_put_mount();
516}
517
518static struct inode * 436static struct inode *
519rpc_get_inode(struct super_block *sb, int mode) 437rpc_get_inode(struct super_block *sb, umode_t mode)
520{ 438{
521 struct inode *inode = new_inode(sb); 439 struct inode *inode = new_inode(sb);
522 if (!inode) 440 if (!inode)
@@ -534,212 +452,274 @@ rpc_get_inode(struct super_block *sb, int mode)
534 return inode; 452 return inode;
535} 453}
536 454
537/* 455static int __rpc_create_common(struct inode *dir, struct dentry *dentry,
538 * FIXME: This probably has races. 456 umode_t mode,
539 */ 457 const struct file_operations *i_fop,
540static void rpc_depopulate(struct dentry *parent, 458 void *private)
541 unsigned long start, unsigned long eof)
542{ 459{
543 struct inode *dir = parent->d_inode; 460 struct inode *inode;
544 struct list_head *pos, *next;
545 struct dentry *dentry, *dvec[10];
546 int n = 0;
547 461
548 mutex_lock_nested(&dir->i_mutex, I_MUTEX_CHILD); 462 BUG_ON(!d_unhashed(dentry));
549repeat: 463 inode = rpc_get_inode(dir->i_sb, mode);
550 spin_lock(&dcache_lock); 464 if (!inode)
551 list_for_each_safe(pos, next, &parent->d_subdirs) { 465 goto out_err;
552 dentry = list_entry(pos, struct dentry, d_u.d_child); 466 inode->i_ino = iunique(dir->i_sb, 100);
553 if (!dentry->d_inode || 467 if (i_fop)
554 dentry->d_inode->i_ino < start || 468 inode->i_fop = i_fop;
555 dentry->d_inode->i_ino >= eof) 469 if (private)
556 continue; 470 rpc_inode_setowner(inode, private);
557 spin_lock(&dentry->d_lock); 471 d_add(dentry, inode);
558 if (!d_unhashed(dentry)) { 472 return 0;
559 dget_locked(dentry); 473out_err:
560 __d_drop(dentry); 474 printk(KERN_WARNING "%s: %s failed to allocate inode for dentry %s\n",
561 spin_unlock(&dentry->d_lock); 475 __FILE__, __func__, dentry->d_name.name);
562 dvec[n++] = dentry; 476 dput(dentry);
563 if (n == ARRAY_SIZE(dvec)) 477 return -ENOMEM;
564 break;
565 } else
566 spin_unlock(&dentry->d_lock);
567 }
568 spin_unlock(&dcache_lock);
569 if (n) {
570 do {
571 dentry = dvec[--n];
572 if (S_ISREG(dentry->d_inode->i_mode))
573 simple_unlink(dir, dentry);
574 else if (S_ISDIR(dentry->d_inode->i_mode))
575 simple_rmdir(dir, dentry);
576 d_delete(dentry);
577 dput(dentry);
578 } while (n);
579 goto repeat;
580 }
581 mutex_unlock(&dir->i_mutex);
582} 478}
583 479
584static int 480static int __rpc_create(struct inode *dir, struct dentry *dentry,
585rpc_populate(struct dentry *parent, 481 umode_t mode,
586 struct rpc_filelist *files, 482 const struct file_operations *i_fop,
587 int start, int eof) 483 void *private)
588{ 484{
589 struct inode *inode, *dir = parent->d_inode; 485 int err;
590 void *private = RPC_I(dir)->private;
591 struct dentry *dentry;
592 int mode, i;
593 486
594 mutex_lock(&dir->i_mutex); 487 err = __rpc_create_common(dir, dentry, S_IFREG | mode, i_fop, private);
595 for (i = start; i < eof; i++) { 488 if (err)
596 dentry = d_alloc_name(parent, files[i].name); 489 return err;
597 if (!dentry) 490 fsnotify_create(dir, dentry);
598 goto out_bad;
599 dentry->d_op = &rpc_dentry_operations;
600 mode = files[i].mode;
601 inode = rpc_get_inode(dir->i_sb, mode);
602 if (!inode) {
603 dput(dentry);
604 goto out_bad;
605 }
606 inode->i_ino = i;
607 if (files[i].i_fop)
608 inode->i_fop = files[i].i_fop;
609 if (private)
610 rpc_inode_setowner(inode, private);
611 if (S_ISDIR(mode))
612 inc_nlink(dir);
613 d_add(dentry, inode);
614 fsnotify_create(dir, dentry);
615 }
616 mutex_unlock(&dir->i_mutex);
617 return 0; 491 return 0;
618out_bad:
619 mutex_unlock(&dir->i_mutex);
620 printk(KERN_WARNING "%s: %s failed to populate directory %s\n",
621 __FILE__, __func__, parent->d_name.name);
622 return -ENOMEM;
623} 492}
624 493
625static int 494static int __rpc_mkdir(struct inode *dir, struct dentry *dentry,
626__rpc_mkdir(struct inode *dir, struct dentry *dentry) 495 umode_t mode,
496 const struct file_operations *i_fop,
497 void *private)
627{ 498{
628 struct inode *inode; 499 int err;
629 500
630 inode = rpc_get_inode(dir->i_sb, S_IFDIR | S_IRUGO | S_IXUGO); 501 err = __rpc_create_common(dir, dentry, S_IFDIR | mode, i_fop, private);
631 if (!inode) 502 if (err)
632 goto out_err; 503 return err;
633 inode->i_ino = iunique(dir->i_sb, 100);
634 d_instantiate(dentry, inode);
635 inc_nlink(dir); 504 inc_nlink(dir);
636 fsnotify_mkdir(dir, dentry); 505 fsnotify_mkdir(dir, dentry);
637 return 0; 506 return 0;
638out_err:
639 printk(KERN_WARNING "%s: %s failed to allocate inode for dentry %s\n",
640 __FILE__, __func__, dentry->d_name.name);
641 return -ENOMEM;
642} 507}
643 508
644static int 509static int __rpc_mkpipe(struct inode *dir, struct dentry *dentry,
645__rpc_rmdir(struct inode *dir, struct dentry *dentry) 510 umode_t mode,
511 const struct file_operations *i_fop,
512 void *private,
513 const struct rpc_pipe_ops *ops,
514 int flags)
646{ 515{
647 int error; 516 struct rpc_inode *rpci;
648 error = simple_rmdir(dir, dentry); 517 int err;
649 if (!error) 518
650 d_delete(dentry); 519 err = __rpc_create_common(dir, dentry, S_IFIFO | mode, i_fop, private);
651 return error; 520 if (err)
521 return err;
522 rpci = RPC_I(dentry->d_inode);
523 rpci->nkern_readwriters = 1;
524 rpci->private = private;
525 rpci->flags = flags;
526 rpci->ops = ops;
527 fsnotify_create(dir, dentry);
528 return 0;
652} 529}
653 530
654static struct dentry * 531static int __rpc_rmdir(struct inode *dir, struct dentry *dentry)
655rpc_lookup_create(struct dentry *parent, const char *name, int len, int exclusive) 532{
533 int ret;
534
535 dget(dentry);
536 ret = simple_rmdir(dir, dentry);
537 d_delete(dentry);
538 dput(dentry);
539 return ret;
540}
541
542static int __rpc_unlink(struct inode *dir, struct dentry *dentry)
543{
544 int ret;
545
546 dget(dentry);
547 ret = simple_unlink(dir, dentry);
548 d_delete(dentry);
549 dput(dentry);
550 return ret;
551}
552
553static int __rpc_rmpipe(struct inode *dir, struct dentry *dentry)
554{
555 struct inode *inode = dentry->d_inode;
556 struct rpc_inode *rpci = RPC_I(inode);
557
558 rpci->nkern_readwriters--;
559 if (rpci->nkern_readwriters != 0)
560 return 0;
561 rpc_close_pipes(inode);
562 return __rpc_unlink(dir, dentry);
563}
564
565static struct dentry *__rpc_lookup_create(struct dentry *parent,
566 struct qstr *name)
656{ 567{
657 struct inode *dir = parent->d_inode;
658 struct dentry *dentry; 568 struct dentry *dentry;
659 569
660 mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT); 570 dentry = d_lookup(parent, name);
661 dentry = lookup_one_len(name, parent, len); 571 if (!dentry) {
662 if (IS_ERR(dentry)) 572 dentry = d_alloc(parent, name);
663 goto out_err; 573 if (!dentry) {
574 dentry = ERR_PTR(-ENOMEM);
575 goto out_err;
576 }
577 }
664 if (!dentry->d_inode) 578 if (!dentry->d_inode)
665 dentry->d_op = &rpc_dentry_operations; 579 dentry->d_op = &rpc_dentry_operations;
666 else if (exclusive) {
667 dput(dentry);
668 dentry = ERR_PTR(-EEXIST);
669 goto out_err;
670 }
671 return dentry;
672out_err: 580out_err:
673 mutex_unlock(&dir->i_mutex);
674 return dentry; 581 return dentry;
675} 582}
676 583
677static struct dentry * 584static struct dentry *__rpc_lookup_create_exclusive(struct dentry *parent,
678rpc_lookup_negative(char *path, struct nameidata *nd) 585 struct qstr *name)
679{ 586{
680 struct dentry *dentry; 587 struct dentry *dentry;
681 int error;
682 588
683 if ((error = rpc_lookup_parent(path, nd)) != 0) 589 dentry = __rpc_lookup_create(parent, name);
684 return ERR_PTR(error); 590 if (dentry->d_inode == NULL)
685 dentry = rpc_lookup_create(nd->path.dentry, nd->last.name, nd->last.len, 591 return dentry;
686 1); 592 dput(dentry);
687 if (IS_ERR(dentry)) 593 return ERR_PTR(-EEXIST);
688 rpc_release_path(nd);
689 return dentry;
690} 594}
691 595
692/** 596/*
693 * rpc_mkdir - Create a new directory in rpc_pipefs 597 * FIXME: This probably has races.
694 * @path: path from the rpc_pipefs root to the new directory
695 * @rpc_client: rpc client to associate with this directory
696 *
697 * This creates a directory at the given @path associated with
698 * @rpc_clnt, which will contain a file named "info" with some basic
699 * information about the client, together with any "pipes" that may
700 * later be created using rpc_mkpipe().
701 */ 598 */
702struct dentry * 599static void __rpc_depopulate(struct dentry *parent,
703rpc_mkdir(char *path, struct rpc_clnt *rpc_client) 600 const struct rpc_filelist *files,
601 int start, int eof)
704{ 602{
705 struct nameidata nd; 603 struct inode *dir = parent->d_inode;
706 struct dentry *dentry; 604 struct dentry *dentry;
707 struct inode *dir; 605 struct qstr name;
606 int i;
607
608 for (i = start; i < eof; i++) {
609 name.name = files[i].name;
610 name.len = strlen(files[i].name);
611 name.hash = full_name_hash(name.name, name.len);
612 dentry = d_lookup(parent, &name);
613
614 if (dentry == NULL)
615 continue;
616 if (dentry->d_inode == NULL)
617 goto next;
618 switch (dentry->d_inode->i_mode & S_IFMT) {
619 default:
620 BUG();
621 case S_IFREG:
622 __rpc_unlink(dir, dentry);
623 break;
624 case S_IFDIR:
625 __rpc_rmdir(dir, dentry);
626 }
627next:
628 dput(dentry);
629 }
630}
631
632static void rpc_depopulate(struct dentry *parent,
633 const struct rpc_filelist *files,
634 int start, int eof)
635{
636 struct inode *dir = parent->d_inode;
637
638 mutex_lock_nested(&dir->i_mutex, I_MUTEX_CHILD);
639 __rpc_depopulate(parent, files, start, eof);
640 mutex_unlock(&dir->i_mutex);
641}
642
643static int rpc_populate(struct dentry *parent,
644 const struct rpc_filelist *files,
645 int start, int eof,
646 void *private)
647{
648 struct inode *dir = parent->d_inode;
649 struct dentry *dentry;
650 int i, err;
651
652 mutex_lock(&dir->i_mutex);
653 for (i = start; i < eof; i++) {
654 struct qstr q;
655
656 q.name = files[i].name;
657 q.len = strlen(files[i].name);
658 q.hash = full_name_hash(q.name, q.len);
659 dentry = __rpc_lookup_create_exclusive(parent, &q);
660 err = PTR_ERR(dentry);
661 if (IS_ERR(dentry))
662 goto out_bad;
663 switch (files[i].mode & S_IFMT) {
664 default:
665 BUG();
666 case S_IFREG:
667 err = __rpc_create(dir, dentry,
668 files[i].mode,
669 files[i].i_fop,
670 private);
671 break;
672 case S_IFDIR:
673 err = __rpc_mkdir(dir, dentry,
674 files[i].mode,
675 NULL,
676 private);
677 }
678 if (err != 0)
679 goto out_bad;
680 }
681 mutex_unlock(&dir->i_mutex);
682 return 0;
683out_bad:
684 __rpc_depopulate(parent, files, start, eof);
685 mutex_unlock(&dir->i_mutex);
686 printk(KERN_WARNING "%s: %s failed to populate directory %s\n",
687 __FILE__, __func__, parent->d_name.name);
688 return err;
689}
690
691static struct dentry *rpc_mkdir_populate(struct dentry *parent,
692 struct qstr *name, umode_t mode, void *private,
693 int (*populate)(struct dentry *, void *), void *args_populate)
694{
695 struct dentry *dentry;
696 struct inode *dir = parent->d_inode;
708 int error; 697 int error;
709 698
710 dentry = rpc_lookup_negative(path, &nd); 699 mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
700 dentry = __rpc_lookup_create_exclusive(parent, name);
711 if (IS_ERR(dentry)) 701 if (IS_ERR(dentry))
712 return dentry; 702 goto out;
713 dir = nd.path.dentry->d_inode; 703 error = __rpc_mkdir(dir, dentry, mode, NULL, private);
714 if ((error = __rpc_mkdir(dir, dentry)) != 0) 704 if (error != 0)
715 goto err_dput; 705 goto out_err;
716 RPC_I(dentry->d_inode)->private = rpc_client; 706 if (populate != NULL) {
717 error = rpc_populate(dentry, authfiles, 707 error = populate(dentry, args_populate);
718 RPCAUTH_info, RPCAUTH_EOF); 708 if (error)
719 if (error) 709 goto err_rmdir;
720 goto err_depopulate; 710 }
721 dget(dentry);
722out: 711out:
723 mutex_unlock(&dir->i_mutex); 712 mutex_unlock(&dir->i_mutex);
724 rpc_release_path(&nd);
725 return dentry; 713 return dentry;
726err_depopulate: 714err_rmdir:
727 rpc_depopulate(dentry, RPCAUTH_info, RPCAUTH_EOF);
728 __rpc_rmdir(dir, dentry); 715 __rpc_rmdir(dir, dentry);
729err_dput: 716out_err:
730 dput(dentry);
731 printk(KERN_WARNING "%s: %s() failed to create directory %s (errno = %d)\n",
732 __FILE__, __func__, path, error);
733 dentry = ERR_PTR(error); 717 dentry = ERR_PTR(error);
734 goto out; 718 goto out;
735} 719}
736 720
737/** 721static int rpc_rmdir_depopulate(struct dentry *dentry,
738 * rpc_rmdir - Remove a directory created with rpc_mkdir() 722 void (*depopulate)(struct dentry *))
739 * @dentry: directory to remove
740 */
741int
742rpc_rmdir(struct dentry *dentry)
743{ 723{
744 struct dentry *parent; 724 struct dentry *parent;
745 struct inode *dir; 725 struct inode *dir;
@@ -748,9 +728,9 @@ rpc_rmdir(struct dentry *dentry)
748 parent = dget_parent(dentry); 728 parent = dget_parent(dentry);
749 dir = parent->d_inode; 729 dir = parent->d_inode;
750 mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT); 730 mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
751 rpc_depopulate(dentry, RPCAUTH_info, RPCAUTH_EOF); 731 if (depopulate != NULL)
732 depopulate(dentry);
752 error = __rpc_rmdir(dir, dentry); 733 error = __rpc_rmdir(dir, dentry);
753 dput(dentry);
754 mutex_unlock(&dir->i_mutex); 734 mutex_unlock(&dir->i_mutex);
755 dput(parent); 735 dput(parent);
756 return error; 736 return error;
@@ -776,50 +756,54 @@ rpc_rmdir(struct dentry *dentry)
776 * The @private argument passed here will be available to all these methods 756 * The @private argument passed here will be available to all these methods
777 * from the file pointer, via RPC_I(file->f_dentry->d_inode)->private. 757 * from the file pointer, via RPC_I(file->f_dentry->d_inode)->private.
778 */ 758 */
779struct dentry * 759struct dentry *rpc_mkpipe(struct dentry *parent, const char *name,
780rpc_mkpipe(struct dentry *parent, const char *name, void *private, struct rpc_pipe_ops *ops, int flags) 760 void *private, const struct rpc_pipe_ops *ops,
761 int flags)
781{ 762{
782 struct dentry *dentry; 763 struct dentry *dentry;
783 struct inode *dir, *inode; 764 struct inode *dir = parent->d_inode;
784 struct rpc_inode *rpci; 765 umode_t umode = S_IFIFO | S_IRUSR | S_IWUSR;
766 struct qstr q;
767 int err;
768
769 if (ops->upcall == NULL)
770 umode &= ~S_IRUGO;
771 if (ops->downcall == NULL)
772 umode &= ~S_IWUGO;
773
774 q.name = name;
775 q.len = strlen(name);
776 q.hash = full_name_hash(q.name, q.len),
785 777
786 dentry = rpc_lookup_create(parent, name, strlen(name), 0); 778 mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
779 dentry = __rpc_lookup_create(parent, &q);
787 if (IS_ERR(dentry)) 780 if (IS_ERR(dentry))
788 return dentry; 781 goto out;
789 dir = parent->d_inode;
790 if (dentry->d_inode) { 782 if (dentry->d_inode) {
791 rpci = RPC_I(dentry->d_inode); 783 struct rpc_inode *rpci = RPC_I(dentry->d_inode);
792 if (rpci->private != private || 784 if (rpci->private != private ||
793 rpci->ops != ops || 785 rpci->ops != ops ||
794 rpci->flags != flags) { 786 rpci->flags != flags) {
795 dput (dentry); 787 dput (dentry);
796 dentry = ERR_PTR(-EBUSY); 788 err = -EBUSY;
789 goto out_err;
797 } 790 }
798 rpci->nkern_readwriters++; 791 rpci->nkern_readwriters++;
799 goto out; 792 goto out;
800 } 793 }
801 inode = rpc_get_inode(dir->i_sb, S_IFIFO | S_IRUSR | S_IWUSR); 794
802 if (!inode) 795 err = __rpc_mkpipe(dir, dentry, umode, &rpc_pipe_fops,
803 goto err_dput; 796 private, ops, flags);
804 inode->i_ino = iunique(dir->i_sb, 100); 797 if (err)
805 inode->i_fop = &rpc_pipe_fops; 798 goto out_err;
806 d_instantiate(dentry, inode);
807 rpci = RPC_I(inode);
808 rpci->private = private;
809 rpci->flags = flags;
810 rpci->ops = ops;
811 rpci->nkern_readwriters = 1;
812 fsnotify_create(dir, dentry);
813 dget(dentry);
814out: 799out:
815 mutex_unlock(&dir->i_mutex); 800 mutex_unlock(&dir->i_mutex);
816 return dentry; 801 return dentry;
817err_dput: 802out_err:
818 dput(dentry); 803 dentry = ERR_PTR(err);
819 dentry = ERR_PTR(-ENOMEM);
820 printk(KERN_WARNING "%s: %s() failed to create pipe %s/%s (errno = %d)\n", 804 printk(KERN_WARNING "%s: %s() failed to create pipe %s/%s (errno = %d)\n",
821 __FILE__, __func__, parent->d_name.name, name, 805 __FILE__, __func__, parent->d_name.name, name,
822 -ENOMEM); 806 err);
823 goto out; 807 goto out;
824} 808}
825EXPORT_SYMBOL_GPL(rpc_mkpipe); 809EXPORT_SYMBOL_GPL(rpc_mkpipe);
@@ -842,19 +826,107 @@ rpc_unlink(struct dentry *dentry)
842 parent = dget_parent(dentry); 826 parent = dget_parent(dentry);
843 dir = parent->d_inode; 827 dir = parent->d_inode;
844 mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT); 828 mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
845 if (--RPC_I(dentry->d_inode)->nkern_readwriters == 0) { 829 error = __rpc_rmpipe(dir, dentry);
846 rpc_close_pipes(dentry->d_inode);
847 error = simple_unlink(dir, dentry);
848 if (!error)
849 d_delete(dentry);
850 }
851 dput(dentry);
852 mutex_unlock(&dir->i_mutex); 830 mutex_unlock(&dir->i_mutex);
853 dput(parent); 831 dput(parent);
854 return error; 832 return error;
855} 833}
856EXPORT_SYMBOL_GPL(rpc_unlink); 834EXPORT_SYMBOL_GPL(rpc_unlink);
857 835
836enum {
837 RPCAUTH_info,
838 RPCAUTH_EOF
839};
840
841static const struct rpc_filelist authfiles[] = {
842 [RPCAUTH_info] = {
843 .name = "info",
844 .i_fop = &rpc_info_operations,
845 .mode = S_IFREG | S_IRUSR,
846 },
847};
848
849static int rpc_clntdir_populate(struct dentry *dentry, void *private)
850{
851 return rpc_populate(dentry,
852 authfiles, RPCAUTH_info, RPCAUTH_EOF,
853 private);
854}
855
856static void rpc_clntdir_depopulate(struct dentry *dentry)
857{
858 rpc_depopulate(dentry, authfiles, RPCAUTH_info, RPCAUTH_EOF);
859}
860
861/**
862 * rpc_create_client_dir - Create a new rpc_client directory in rpc_pipefs
863 * @path: path from the rpc_pipefs root to the new directory
864 * @rpc_client: rpc client to associate with this directory
865 *
866 * This creates a directory at the given @path associated with
867 * @rpc_clnt, which will contain a file named "info" with some basic
868 * information about the client, together with any "pipes" that may
869 * later be created using rpc_mkpipe().
870 */
871struct dentry *rpc_create_client_dir(struct dentry *dentry,
872 struct qstr *name,
873 struct rpc_clnt *rpc_client)
874{
875 return rpc_mkdir_populate(dentry, name, S_IRUGO | S_IXUGO, NULL,
876 rpc_clntdir_populate, rpc_client);
877}
878
879/**
880 * rpc_remove_client_dir - Remove a directory created with rpc_create_client_dir()
881 * @dentry: directory to remove
882 */
883int rpc_remove_client_dir(struct dentry *dentry)
884{
885 return rpc_rmdir_depopulate(dentry, rpc_clntdir_depopulate);
886}
887
888static const struct rpc_filelist cache_pipefs_files[3] = {
889 [0] = {
890 .name = "channel",
891 .i_fop = &cache_file_operations_pipefs,
892 .mode = S_IFREG|S_IRUSR|S_IWUSR,
893 },
894 [1] = {
895 .name = "content",
896 .i_fop = &content_file_operations_pipefs,
897 .mode = S_IFREG|S_IRUSR,
898 },
899 [2] = {
900 .name = "flush",
901 .i_fop = &cache_flush_operations_pipefs,
902 .mode = S_IFREG|S_IRUSR|S_IWUSR,
903 },
904};
905
906static int rpc_cachedir_populate(struct dentry *dentry, void *private)
907{
908 return rpc_populate(dentry,
909 cache_pipefs_files, 0, 3,
910 private);
911}
912
913static void rpc_cachedir_depopulate(struct dentry *dentry)
914{
915 rpc_depopulate(dentry, cache_pipefs_files, 0, 3);
916}
917
918struct dentry *rpc_create_cache_dir(struct dentry *parent, struct qstr *name,
919 mode_t umode, struct cache_detail *cd)
920{
921 return rpc_mkdir_populate(parent, name, umode, NULL,
922 rpc_cachedir_populate, cd);
923}
924
925void rpc_remove_cache_dir(struct dentry *dentry)
926{
927 rpc_rmdir_depopulate(dentry, rpc_cachedir_depopulate);
928}
929
858/* 930/*
859 * populate the filesystem 931 * populate the filesystem
860 */ 932 */
@@ -866,6 +938,51 @@ static struct super_operations s_ops = {
866 938
867#define RPCAUTH_GSSMAGIC 0x67596969 939#define RPCAUTH_GSSMAGIC 0x67596969
868 940
941/*
942 * We have a single directory with 1 node in it.
943 */
944enum {
945 RPCAUTH_lockd,
946 RPCAUTH_mount,
947 RPCAUTH_nfs,
948 RPCAUTH_portmap,
949 RPCAUTH_statd,
950 RPCAUTH_nfsd4_cb,
951 RPCAUTH_cache,
952 RPCAUTH_RootEOF
953};
954
955static const struct rpc_filelist files[] = {
956 [RPCAUTH_lockd] = {
957 .name = "lockd",
958 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
959 },
960 [RPCAUTH_mount] = {
961 .name = "mount",
962 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
963 },
964 [RPCAUTH_nfs] = {
965 .name = "nfs",
966 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
967 },
968 [RPCAUTH_portmap] = {
969 .name = "portmap",
970 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
971 },
972 [RPCAUTH_statd] = {
973 .name = "statd",
974 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
975 },
976 [RPCAUTH_nfsd4_cb] = {
977 .name = "nfsd4_cb",
978 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
979 },
980 [RPCAUTH_cache] = {
981 .name = "cache",
982 .mode = S_IFDIR | S_IRUGO | S_IXUGO,
983 },
984};
985
869static int 986static int
870rpc_fill_super(struct super_block *sb, void *data, int silent) 987rpc_fill_super(struct super_block *sb, void *data, int silent)
871{ 988{
@@ -886,7 +1003,7 @@ rpc_fill_super(struct super_block *sb, void *data, int silent)
886 iput(inode); 1003 iput(inode);
887 return -ENOMEM; 1004 return -ENOMEM;
888 } 1005 }
889 if (rpc_populate(root, files, RPCAUTH_Root + 1, RPCAUTH_RootEOF)) 1006 if (rpc_populate(root, files, RPCAUTH_lockd, RPCAUTH_RootEOF, NULL))
890 goto out; 1007 goto out;
891 sb->s_root = root; 1008 sb->s_root = root;
892 return 0; 1009 return 0;
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index beee6da33035..830faf4d9997 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -75,6 +75,37 @@ enum {
75#define RPCB_OWNER_STRING "0" 75#define RPCB_OWNER_STRING "0"
76#define RPCB_MAXOWNERLEN sizeof(RPCB_OWNER_STRING) 76#define RPCB_MAXOWNERLEN sizeof(RPCB_OWNER_STRING)
77 77
78/*
79 * XDR data type sizes
80 */
81#define RPCB_program_sz (1)
82#define RPCB_version_sz (1)
83#define RPCB_protocol_sz (1)
84#define RPCB_port_sz (1)
85#define RPCB_boolean_sz (1)
86
87#define RPCB_netid_sz (1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN))
88#define RPCB_addr_sz (1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN))
89#define RPCB_ownerstring_sz (1 + XDR_QUADLEN(RPCB_MAXOWNERLEN))
90
91/*
92 * XDR argument and result sizes
93 */
94#define RPCB_mappingargs_sz (RPCB_program_sz + RPCB_version_sz + \
95 RPCB_protocol_sz + RPCB_port_sz)
96#define RPCB_getaddrargs_sz (RPCB_program_sz + RPCB_version_sz + \
97 RPCB_netid_sz + RPCB_addr_sz + \
98 RPCB_ownerstring_sz)
99
100#define RPCB_getportres_sz RPCB_port_sz
101#define RPCB_setres_sz RPCB_boolean_sz
102
103/*
104 * Note that RFC 1833 does not put any size restrictions on the
105 * address string returned by the remote rpcbind database.
106 */
107#define RPCB_getaddrres_sz RPCB_addr_sz
108
78static void rpcb_getport_done(struct rpc_task *, void *); 109static void rpcb_getport_done(struct rpc_task *, void *);
79static void rpcb_map_release(void *data); 110static void rpcb_map_release(void *data);
80static struct rpc_program rpcb_program; 111static struct rpc_program rpcb_program;
@@ -122,6 +153,7 @@ static void rpcb_map_release(void *data)
122 153
123 rpcb_wake_rpcbind_waiters(map->r_xprt, map->r_status); 154 rpcb_wake_rpcbind_waiters(map->r_xprt, map->r_status);
124 xprt_put(map->r_xprt); 155 xprt_put(map->r_xprt);
156 kfree(map->r_addr);
125 kfree(map); 157 kfree(map);
126} 158}
127 159
@@ -268,12 +300,9 @@ static int rpcb_register_inet4(const struct sockaddr *sap,
268 const struct sockaddr_in *sin = (const struct sockaddr_in *)sap; 300 const struct sockaddr_in *sin = (const struct sockaddr_in *)sap;
269 struct rpcbind_args *map = msg->rpc_argp; 301 struct rpcbind_args *map = msg->rpc_argp;
270 unsigned short port = ntohs(sin->sin_port); 302 unsigned short port = ntohs(sin->sin_port);
271 char buf[32]; 303 int result;
272 304
273 /* Construct AF_INET universal address */ 305 map->r_addr = rpc_sockaddr2uaddr(sap);
274 snprintf(buf, sizeof(buf), "%pI4.%u.%u",
275 &sin->sin_addr.s_addr, port >> 8, port & 0xff);
276 map->r_addr = buf;
277 306
278 dprintk("RPC: %sregistering [%u, %u, %s, '%s'] with " 307 dprintk("RPC: %sregistering [%u, %u, %s, '%s'] with "
279 "local rpcbind\n", (port ? "" : "un"), 308 "local rpcbind\n", (port ? "" : "un"),
@@ -284,7 +313,9 @@ static int rpcb_register_inet4(const struct sockaddr *sap,
284 if (port) 313 if (port)
285 msg->rpc_proc = &rpcb_procedures4[RPCBPROC_SET]; 314 msg->rpc_proc = &rpcb_procedures4[RPCBPROC_SET];
286 315
287 return rpcb_register_call(RPCBVERS_4, msg); 316 result = rpcb_register_call(RPCBVERS_4, msg);
317 kfree(map->r_addr);
318 return result;
288} 319}
289 320
290/* 321/*
@@ -296,16 +327,9 @@ static int rpcb_register_inet6(const struct sockaddr *sap,
296 const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sap; 327 const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sap;
297 struct rpcbind_args *map = msg->rpc_argp; 328 struct rpcbind_args *map = msg->rpc_argp;
298 unsigned short port = ntohs(sin6->sin6_port); 329 unsigned short port = ntohs(sin6->sin6_port);
299 char buf[64]; 330 int result;
300 331
301 /* Construct AF_INET6 universal address */ 332 map->r_addr = rpc_sockaddr2uaddr(sap);
302 if (ipv6_addr_any(&sin6->sin6_addr))
303 snprintf(buf, sizeof(buf), "::.%u.%u",
304 port >> 8, port & 0xff);
305 else
306 snprintf(buf, sizeof(buf), "%pI6.%u.%u",
307 &sin6->sin6_addr, port >> 8, port & 0xff);
308 map->r_addr = buf;
309 333
310 dprintk("RPC: %sregistering [%u, %u, %s, '%s'] with " 334 dprintk("RPC: %sregistering [%u, %u, %s, '%s'] with "
311 "local rpcbind\n", (port ? "" : "un"), 335 "local rpcbind\n", (port ? "" : "un"),
@@ -316,7 +340,9 @@ static int rpcb_register_inet6(const struct sockaddr *sap,
316 if (port) 340 if (port)
317 msg->rpc_proc = &rpcb_procedures4[RPCBPROC_SET]; 341 msg->rpc_proc = &rpcb_procedures4[RPCBPROC_SET];
318 342
319 return rpcb_register_call(RPCBVERS_4, msg); 343 result = rpcb_register_call(RPCBVERS_4, msg);
344 kfree(map->r_addr);
345 return result;
320} 346}
321 347
322static int rpcb_unregister_all_protofamilies(struct rpc_message *msg) 348static int rpcb_unregister_all_protofamilies(struct rpc_message *msg)
@@ -428,7 +454,7 @@ int rpcb_getport_sync(struct sockaddr_in *sin, u32 prog, u32 vers, int prot)
428 struct rpc_message msg = { 454 struct rpc_message msg = {
429 .rpc_proc = &rpcb_procedures2[RPCBPROC_GETPORT], 455 .rpc_proc = &rpcb_procedures2[RPCBPROC_GETPORT],
430 .rpc_argp = &map, 456 .rpc_argp = &map,
431 .rpc_resp = &map.r_port, 457 .rpc_resp = &map,
432 }; 458 };
433 struct rpc_clnt *rpcb_clnt; 459 struct rpc_clnt *rpcb_clnt;
434 int status; 460 int status;
@@ -458,7 +484,7 @@ static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbi
458 struct rpc_message msg = { 484 struct rpc_message msg = {
459 .rpc_proc = proc, 485 .rpc_proc = proc,
460 .rpc_argp = map, 486 .rpc_argp = map,
461 .rpc_resp = &map->r_port, 487 .rpc_resp = map,
462 }; 488 };
463 struct rpc_task_setup task_setup_data = { 489 struct rpc_task_setup task_setup_data = {
464 .rpc_client = rpcb_clnt, 490 .rpc_client = rpcb_clnt,
@@ -539,6 +565,7 @@ void rpcb_getport_async(struct rpc_task *task)
539 goto bailout_nofree; 565 goto bailout_nofree;
540 } 566 }
541 567
568 /* Parent transport's destination address */
542 salen = rpc_peeraddr(clnt, sap, sizeof(addr)); 569 salen = rpc_peeraddr(clnt, sap, sizeof(addr));
543 570
544 /* Don't ever use rpcbind v2 for AF_INET6 requests */ 571 /* Don't ever use rpcbind v2 for AF_INET6 requests */
@@ -589,11 +616,22 @@ void rpcb_getport_async(struct rpc_task *task)
589 map->r_prot = xprt->prot; 616 map->r_prot = xprt->prot;
590 map->r_port = 0; 617 map->r_port = 0;
591 map->r_xprt = xprt_get(xprt); 618 map->r_xprt = xprt_get(xprt);
592 map->r_netid = rpc_peeraddr2str(clnt, RPC_DISPLAY_NETID);
593 map->r_addr = rpc_peeraddr2str(rpcb_clnt, RPC_DISPLAY_UNIVERSAL_ADDR);
594 map->r_owner = "";
595 map->r_status = -EIO; 619 map->r_status = -EIO;
596 620
621 switch (bind_version) {
622 case RPCBVERS_4:
623 case RPCBVERS_3:
624 map->r_netid = rpc_peeraddr2str(clnt, RPC_DISPLAY_NETID);
625 map->r_addr = rpc_sockaddr2uaddr(sap);
626 map->r_owner = "";
627 break;
628 case RPCBVERS_2:
629 map->r_addr = NULL;
630 break;
631 default:
632 BUG();
633 }
634
597 child = rpcb_call_async(rpcb_clnt, map, proc); 635 child = rpcb_call_async(rpcb_clnt, map, proc);
598 rpc_release_client(rpcb_clnt); 636 rpc_release_client(rpcb_clnt);
599 if (IS_ERR(child)) { 637 if (IS_ERR(child)) {
@@ -656,176 +694,278 @@ static void rpcb_getport_done(struct rpc_task *child, void *data)
656 * XDR functions for rpcbind 694 * XDR functions for rpcbind
657 */ 695 */
658 696
659static int rpcb_encode_mapping(struct rpc_rqst *req, __be32 *p, 697static int rpcb_enc_mapping(struct rpc_rqst *req, __be32 *p,
660 struct rpcbind_args *rpcb) 698 const struct rpcbind_args *rpcb)
661{ 699{
662 dprintk("RPC: encoding rpcb request (%u, %u, %d, %u)\n", 700 struct rpc_task *task = req->rq_task;
701 struct xdr_stream xdr;
702
703 dprintk("RPC: %5u encoding PMAP_%s call (%u, %u, %d, %u)\n",
704 task->tk_pid, task->tk_msg.rpc_proc->p_name,
663 rpcb->r_prog, rpcb->r_vers, rpcb->r_prot, rpcb->r_port); 705 rpcb->r_prog, rpcb->r_vers, rpcb->r_prot, rpcb->r_port);
706
707 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
708
709 p = xdr_reserve_space(&xdr, sizeof(__be32) * RPCB_mappingargs_sz);
710 if (unlikely(p == NULL))
711 return -EIO;
712
664 *p++ = htonl(rpcb->r_prog); 713 *p++ = htonl(rpcb->r_prog);
665 *p++ = htonl(rpcb->r_vers); 714 *p++ = htonl(rpcb->r_vers);
666 *p++ = htonl(rpcb->r_prot); 715 *p++ = htonl(rpcb->r_prot);
667 *p++ = htonl(rpcb->r_port); 716 *p = htonl(rpcb->r_port);
668 717
669 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
670 return 0; 718 return 0;
671} 719}
672 720
673static int rpcb_decode_getport(struct rpc_rqst *req, __be32 *p, 721static int rpcb_dec_getport(struct rpc_rqst *req, __be32 *p,
674 unsigned short *portp) 722 struct rpcbind_args *rpcb)
675{ 723{
676 *portp = (unsigned short) ntohl(*p++); 724 struct rpc_task *task = req->rq_task;
677 dprintk("RPC: rpcb getport result: %u\n", 725 struct xdr_stream xdr;
678 *portp); 726 unsigned long port;
727
728 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
729
730 rpcb->r_port = 0;
731
732 p = xdr_inline_decode(&xdr, sizeof(__be32));
733 if (unlikely(p == NULL))
734 return -EIO;
735
736 port = ntohl(*p);
737 dprintk("RPC: %5u PMAP_%s result: %lu\n", task->tk_pid,
738 task->tk_msg.rpc_proc->p_name, port);
739 if (unlikely(port > USHORT_MAX))
740 return -EIO;
741
742 rpcb->r_port = port;
679 return 0; 743 return 0;
680} 744}
681 745
682static int rpcb_decode_set(struct rpc_rqst *req, __be32 *p, 746static int rpcb_dec_set(struct rpc_rqst *req, __be32 *p,
683 unsigned int *boolp) 747 unsigned int *boolp)
684{ 748{
685 *boolp = (unsigned int) ntohl(*p++); 749 struct rpc_task *task = req->rq_task;
686 dprintk("RPC: rpcb set/unset call %s\n", 750 struct xdr_stream xdr;
751
752 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
753
754 p = xdr_inline_decode(&xdr, sizeof(__be32));
755 if (unlikely(p == NULL))
756 return -EIO;
757
758 *boolp = 0;
759 if (*p)
760 *boolp = 1;
761
762 dprintk("RPC: %5u RPCB_%s call %s\n",
763 task->tk_pid, task->tk_msg.rpc_proc->p_name,
687 (*boolp ? "succeeded" : "failed")); 764 (*boolp ? "succeeded" : "failed"));
688 return 0; 765 return 0;
689} 766}
690 767
691static int rpcb_encode_getaddr(struct rpc_rqst *req, __be32 *p, 768static int encode_rpcb_string(struct xdr_stream *xdr, const char *string,
692 struct rpcbind_args *rpcb) 769 const u32 maxstrlen)
693{ 770{
694 dprintk("RPC: encoding rpcb request (%u, %u, %s)\n", 771 u32 len;
695 rpcb->r_prog, rpcb->r_vers, rpcb->r_addr); 772 __be32 *p;
696 *p++ = htonl(rpcb->r_prog);
697 *p++ = htonl(rpcb->r_vers);
698 773
699 p = xdr_encode_string(p, rpcb->r_netid); 774 if (unlikely(string == NULL))
700 p = xdr_encode_string(p, rpcb->r_addr); 775 return -EIO;
701 p = xdr_encode_string(p, rpcb->r_owner); 776 len = strlen(string);
777 if (unlikely(len > maxstrlen))
778 return -EIO;
702 779
703 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); 780 p = xdr_reserve_space(xdr, sizeof(__be32) + len);
781 if (unlikely(p == NULL))
782 return -EIO;
783 xdr_encode_opaque(p, string, len);
704 784
705 return 0; 785 return 0;
706} 786}
707 787
708static int rpcb_decode_getaddr(struct rpc_rqst *req, __be32 *p, 788static int rpcb_enc_getaddr(struct rpc_rqst *req, __be32 *p,
709 unsigned short *portp) 789 const struct rpcbind_args *rpcb)
710{ 790{
711 char *addr; 791 struct rpc_task *task = req->rq_task;
712 u32 addr_len; 792 struct xdr_stream xdr;
713 int c, i, f, first, val;
714 793
715 *portp = 0; 794 dprintk("RPC: %5u encoding RPCB_%s call (%u, %u, '%s', '%s')\n",
716 addr_len = ntohl(*p++); 795 task->tk_pid, task->tk_msg.rpc_proc->p_name,
796 rpcb->r_prog, rpcb->r_vers,
797 rpcb->r_netid, rpcb->r_addr);
717 798
718 if (addr_len == 0) { 799 xdr_init_encode(&xdr, &req->rq_snd_buf, p);
719 dprintk("RPC: rpcb_decode_getaddr: "
720 "service is not registered\n");
721 return 0;
722 }
723 800
724 /* 801 p = xdr_reserve_space(&xdr,
725 * Simple sanity check. 802 sizeof(__be32) * (RPCB_program_sz + RPCB_version_sz));
726 */ 803 if (unlikely(p == NULL))
727 if (addr_len > RPCBIND_MAXUADDRLEN) 804 return -EIO;
728 goto out_err; 805 *p++ = htonl(rpcb->r_prog);
729 806 *p = htonl(rpcb->r_vers);
730 /*
731 * Start at the end and walk backwards until the first dot
732 * is encountered. When the second dot is found, we have
733 * both parts of the port number.
734 */
735 addr = (char *)p;
736 val = 0;
737 first = 1;
738 f = 1;
739 for (i = addr_len - 1; i > 0; i--) {
740 c = addr[i];
741 if (c >= '0' && c <= '9') {
742 val += (c - '0') * f;
743 f *= 10;
744 } else if (c == '.') {
745 if (first) {
746 *portp = val;
747 val = first = 0;
748 f = 1;
749 } else {
750 *portp |= (val << 8);
751 break;
752 }
753 }
754 }
755 807
756 /* 808 if (encode_rpcb_string(&xdr, rpcb->r_netid, RPCBIND_MAXNETIDLEN))
757 * Simple sanity check. If we never saw a dot in the reply, 809 return -EIO;
758 * then this was probably just garbage. 810 if (encode_rpcb_string(&xdr, rpcb->r_addr, RPCBIND_MAXUADDRLEN))
759 */ 811 return -EIO;
760 if (first) 812 if (encode_rpcb_string(&xdr, rpcb->r_owner, RPCB_MAXOWNERLEN))
761 goto out_err; 813 return -EIO;
762 814
763 dprintk("RPC: rpcb_decode_getaddr port=%u\n", *portp);
764 return 0; 815 return 0;
765
766out_err:
767 dprintk("RPC: rpcbind server returned malformed reply\n");
768 return -EIO;
769} 816}
770 817
771#define RPCB_program_sz (1u) 818static int rpcb_dec_getaddr(struct rpc_rqst *req, __be32 *p,
772#define RPCB_version_sz (1u) 819 struct rpcbind_args *rpcb)
773#define RPCB_protocol_sz (1u) 820{
774#define RPCB_port_sz (1u) 821 struct sockaddr_storage address;
775#define RPCB_boolean_sz (1u) 822 struct sockaddr *sap = (struct sockaddr *)&address;
823 struct rpc_task *task = req->rq_task;
824 struct xdr_stream xdr;
825 u32 len;
776 826
777#define RPCB_netid_sz (1+XDR_QUADLEN(RPCBIND_MAXNETIDLEN)) 827 rpcb->r_port = 0;
778#define RPCB_addr_sz (1+XDR_QUADLEN(RPCBIND_MAXUADDRLEN))
779#define RPCB_ownerstring_sz (1+XDR_QUADLEN(RPCB_MAXOWNERLEN))
780 828
781#define RPCB_mappingargs_sz RPCB_program_sz+RPCB_version_sz+ \ 829 xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
782 RPCB_protocol_sz+RPCB_port_sz
783#define RPCB_getaddrargs_sz RPCB_program_sz+RPCB_version_sz+ \
784 RPCB_netid_sz+RPCB_addr_sz+ \
785 RPCB_ownerstring_sz
786 830
787#define RPCB_setres_sz RPCB_boolean_sz 831 p = xdr_inline_decode(&xdr, sizeof(__be32));
788#define RPCB_getportres_sz RPCB_port_sz 832 if (unlikely(p == NULL))
789 833 goto out_fail;
790/* 834 len = ntohl(*p);
791 * Note that RFC 1833 does not put any size restrictions on the
792 * address string returned by the remote rpcbind database.
793 */
794#define RPCB_getaddrres_sz RPCB_addr_sz
795 835
796#define PROC(proc, argtype, restype) \ 836 /*
797 [RPCBPROC_##proc] = { \ 837 * If the returned universal address is a null string,
798 .p_proc = RPCBPROC_##proc, \ 838 * the requested RPC service was not registered.
799 .p_encode = (kxdrproc_t) rpcb_encode_##argtype, \ 839 */
800 .p_decode = (kxdrproc_t) rpcb_decode_##restype, \ 840 if (len == 0) {
801 .p_arglen = RPCB_##argtype##args_sz, \ 841 dprintk("RPC: %5u RPCB reply: program not registered\n",
802 .p_replen = RPCB_##restype##res_sz, \ 842 task->tk_pid);
803 .p_statidx = RPCBPROC_##proc, \ 843 return 0;
804 .p_timer = 0, \
805 .p_name = #proc, \
806 } 844 }
807 845
846 if (unlikely(len > RPCBIND_MAXUADDRLEN))
847 goto out_fail;
848
849 p = xdr_inline_decode(&xdr, len);
850 if (unlikely(p == NULL))
851 goto out_fail;
852 dprintk("RPC: %5u RPCB_%s reply: %s\n", task->tk_pid,
853 task->tk_msg.rpc_proc->p_name, (char *)p);
854
855 if (rpc_uaddr2sockaddr((char *)p, len, sap, sizeof(address)) == 0)
856 goto out_fail;
857 rpcb->r_port = rpc_get_port(sap);
858
859 return 0;
860
861out_fail:
862 dprintk("RPC: %5u malformed RPCB_%s reply\n",
863 task->tk_pid, task->tk_msg.rpc_proc->p_name);
864 return -EIO;
865}
866
808/* 867/*
809 * Not all rpcbind procedures described in RFC 1833 are implemented 868 * Not all rpcbind procedures described in RFC 1833 are implemented
810 * since the Linux kernel RPC code requires only these. 869 * since the Linux kernel RPC code requires only these.
811 */ 870 */
871
812static struct rpc_procinfo rpcb_procedures2[] = { 872static struct rpc_procinfo rpcb_procedures2[] = {
813 PROC(SET, mapping, set), 873 [RPCBPROC_SET] = {
814 PROC(UNSET, mapping, set), 874 .p_proc = RPCBPROC_SET,
815 PROC(GETPORT, mapping, getport), 875 .p_encode = (kxdrproc_t)rpcb_enc_mapping,
876 .p_decode = (kxdrproc_t)rpcb_dec_set,
877 .p_arglen = RPCB_mappingargs_sz,
878 .p_replen = RPCB_setres_sz,
879 .p_statidx = RPCBPROC_SET,
880 .p_timer = 0,
881 .p_name = "SET",
882 },
883 [RPCBPROC_UNSET] = {
884 .p_proc = RPCBPROC_UNSET,
885 .p_encode = (kxdrproc_t)rpcb_enc_mapping,
886 .p_decode = (kxdrproc_t)rpcb_dec_set,
887 .p_arglen = RPCB_mappingargs_sz,
888 .p_replen = RPCB_setres_sz,
889 .p_statidx = RPCBPROC_UNSET,
890 .p_timer = 0,
891 .p_name = "UNSET",
892 },
893 [RPCBPROC_GETPORT] = {
894 .p_proc = RPCBPROC_GETPORT,
895 .p_encode = (kxdrproc_t)rpcb_enc_mapping,
896 .p_decode = (kxdrproc_t)rpcb_dec_getport,
897 .p_arglen = RPCB_mappingargs_sz,
898 .p_replen = RPCB_getportres_sz,
899 .p_statidx = RPCBPROC_GETPORT,
900 .p_timer = 0,
901 .p_name = "GETPORT",
902 },
816}; 903};
817 904
818static struct rpc_procinfo rpcb_procedures3[] = { 905static struct rpc_procinfo rpcb_procedures3[] = {
819 PROC(SET, getaddr, set), 906 [RPCBPROC_SET] = {
820 PROC(UNSET, getaddr, set), 907 .p_proc = RPCBPROC_SET,
821 PROC(GETADDR, getaddr, getaddr), 908 .p_encode = (kxdrproc_t)rpcb_enc_getaddr,
909 .p_decode = (kxdrproc_t)rpcb_dec_set,
910 .p_arglen = RPCB_getaddrargs_sz,
911 .p_replen = RPCB_setres_sz,
912 .p_statidx = RPCBPROC_SET,
913 .p_timer = 0,
914 .p_name = "SET",
915 },
916 [RPCBPROC_UNSET] = {
917 .p_proc = RPCBPROC_UNSET,
918 .p_encode = (kxdrproc_t)rpcb_enc_getaddr,
919 .p_decode = (kxdrproc_t)rpcb_dec_set,
920 .p_arglen = RPCB_getaddrargs_sz,
921 .p_replen = RPCB_setres_sz,
922 .p_statidx = RPCBPROC_UNSET,
923 .p_timer = 0,
924 .p_name = "UNSET",
925 },
926 [RPCBPROC_GETADDR] = {
927 .p_proc = RPCBPROC_GETADDR,
928 .p_encode = (kxdrproc_t)rpcb_enc_getaddr,
929 .p_decode = (kxdrproc_t)rpcb_dec_getaddr,
930 .p_arglen = RPCB_getaddrargs_sz,
931 .p_replen = RPCB_getaddrres_sz,
932 .p_statidx = RPCBPROC_GETADDR,
933 .p_timer = 0,
934 .p_name = "GETADDR",
935 },
822}; 936};
823 937
824static struct rpc_procinfo rpcb_procedures4[] = { 938static struct rpc_procinfo rpcb_procedures4[] = {
825 PROC(SET, getaddr, set), 939 [RPCBPROC_SET] = {
826 PROC(UNSET, getaddr, set), 940 .p_proc = RPCBPROC_SET,
827 PROC(GETADDR, getaddr, getaddr), 941 .p_encode = (kxdrproc_t)rpcb_enc_getaddr,
828 PROC(GETVERSADDR, getaddr, getaddr), 942 .p_decode = (kxdrproc_t)rpcb_dec_set,
943 .p_arglen = RPCB_getaddrargs_sz,
944 .p_replen = RPCB_setres_sz,
945 .p_statidx = RPCBPROC_SET,
946 .p_timer = 0,
947 .p_name = "SET",
948 },
949 [RPCBPROC_UNSET] = {
950 .p_proc = RPCBPROC_UNSET,
951 .p_encode = (kxdrproc_t)rpcb_enc_getaddr,
952 .p_decode = (kxdrproc_t)rpcb_dec_set,
953 .p_arglen = RPCB_getaddrargs_sz,
954 .p_replen = RPCB_setres_sz,
955 .p_statidx = RPCBPROC_UNSET,
956 .p_timer = 0,
957 .p_name = "UNSET",
958 },
959 [RPCBPROC_GETADDR] = {
960 .p_proc = RPCBPROC_GETADDR,
961 .p_encode = (kxdrproc_t)rpcb_enc_getaddr,
962 .p_decode = (kxdrproc_t)rpcb_dec_getaddr,
963 .p_arglen = RPCB_getaddrargs_sz,
964 .p_replen = RPCB_getaddrres_sz,
965 .p_statidx = RPCBPROC_GETADDR,
966 .p_timer = 0,
967 .p_name = "GETADDR",
968 },
829}; 969};
830 970
831static struct rpcb_info rpcb_next_version[] = { 971static struct rpcb_info rpcb_next_version[] = {
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index adaa81982f74..8cce92189019 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -69,5 +69,5 @@ cleanup_sunrpc(void)
69 rcu_barrier(); /* Wait for completion of call_rcu()'s */ 69 rcu_barrier(); /* Wait for completion of call_rcu()'s */
70} 70}
71MODULE_LICENSE("GPL"); 71MODULE_LICENSE("GPL");
72module_init(init_sunrpc); 72fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */
73module_exit(cleanup_sunrpc); 73module_exit(cleanup_sunrpc);
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index 5c865e2d299e..6caffa34ac01 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -171,6 +171,11 @@ static void ip_map_request(struct cache_detail *cd,
171 (*bpp)[-1] = '\n'; 171 (*bpp)[-1] = '\n';
172} 172}
173 173
174static int ip_map_upcall(struct cache_detail *cd, struct cache_head *h)
175{
176 return sunrpc_cache_pipe_upcall(cd, h, ip_map_request);
177}
178
174static struct ip_map *ip_map_lookup(char *class, struct in6_addr *addr); 179static struct ip_map *ip_map_lookup(char *class, struct in6_addr *addr);
175static int ip_map_update(struct ip_map *ipm, struct unix_domain *udom, time_t expiry); 180static int ip_map_update(struct ip_map *ipm, struct unix_domain *udom, time_t expiry);
176 181
@@ -289,7 +294,7 @@ struct cache_detail ip_map_cache = {
289 .hash_table = ip_table, 294 .hash_table = ip_table,
290 .name = "auth.unix.ip", 295 .name = "auth.unix.ip",
291 .cache_put = ip_map_put, 296 .cache_put = ip_map_put,
292 .cache_request = ip_map_request, 297 .cache_upcall = ip_map_upcall,
293 .cache_parse = ip_map_parse, 298 .cache_parse = ip_map_parse,
294 .cache_show = ip_map_show, 299 .cache_show = ip_map_show,
295 .match = ip_map_match, 300 .match = ip_map_match,
@@ -523,6 +528,11 @@ static void unix_gid_request(struct cache_detail *cd,
523 (*bpp)[-1] = '\n'; 528 (*bpp)[-1] = '\n';
524} 529}
525 530
531static int unix_gid_upcall(struct cache_detail *cd, struct cache_head *h)
532{
533 return sunrpc_cache_pipe_upcall(cd, h, unix_gid_request);
534}
535
526static struct unix_gid *unix_gid_lookup(uid_t uid); 536static struct unix_gid *unix_gid_lookup(uid_t uid);
527extern struct cache_detail unix_gid_cache; 537extern struct cache_detail unix_gid_cache;
528 538
@@ -622,7 +632,7 @@ struct cache_detail unix_gid_cache = {
622 .hash_table = gid_table, 632 .hash_table = gid_table,
623 .name = "auth.unix.gid", 633 .name = "auth.unix.gid",
624 .cache_put = unix_gid_put, 634 .cache_put = unix_gid_put,
625 .cache_request = unix_gid_request, 635 .cache_upcall = unix_gid_upcall,
626 .cache_parse = unix_gid_parse, 636 .cache_parse = unix_gid_parse,
627 .cache_show = unix_gid_show, 637 .cache_show = unix_gid_show,
628 .match = unix_gid_match, 638 .match = unix_gid_match,
diff --git a/net/sunrpc/timer.c b/net/sunrpc/timer.c
index 31becbf09263..dd824341c349 100644
--- a/net/sunrpc/timer.c
+++ b/net/sunrpc/timer.c
@@ -25,8 +25,13 @@
25#define RPC_RTO_INIT (HZ/5) 25#define RPC_RTO_INIT (HZ/5)
26#define RPC_RTO_MIN (HZ/10) 26#define RPC_RTO_MIN (HZ/10)
27 27
28void 28/**
29rpc_init_rtt(struct rpc_rtt *rt, unsigned long timeo) 29 * rpc_init_rtt - Initialize an RPC RTT estimator context
30 * @rt: context to initialize
31 * @timeo: initial timeout value, in jiffies
32 *
33 */
34void rpc_init_rtt(struct rpc_rtt *rt, unsigned long timeo)
30{ 35{
31 unsigned long init = 0; 36 unsigned long init = 0;
32 unsigned i; 37 unsigned i;
@@ -43,12 +48,16 @@ rpc_init_rtt(struct rpc_rtt *rt, unsigned long timeo)
43} 48}
44EXPORT_SYMBOL_GPL(rpc_init_rtt); 49EXPORT_SYMBOL_GPL(rpc_init_rtt);
45 50
46/* 51/**
52 * rpc_update_rtt - Update an RPC RTT estimator context
53 * @rt: context to update
54 * @timer: timer array index (request type)
55 * @m: recent actual RTT, in jiffies
56 *
47 * NB: When computing the smoothed RTT and standard deviation, 57 * NB: When computing the smoothed RTT and standard deviation,
48 * be careful not to produce negative intermediate results. 58 * be careful not to produce negative intermediate results.
49 */ 59 */
50void 60void rpc_update_rtt(struct rpc_rtt *rt, unsigned timer, long m)
51rpc_update_rtt(struct rpc_rtt *rt, unsigned timer, long m)
52{ 61{
53 long *srtt, *sdrtt; 62 long *srtt, *sdrtt;
54 63
@@ -79,21 +88,25 @@ rpc_update_rtt(struct rpc_rtt *rt, unsigned timer, long m)
79} 88}
80EXPORT_SYMBOL_GPL(rpc_update_rtt); 89EXPORT_SYMBOL_GPL(rpc_update_rtt);
81 90
82/* 91/**
83 * Estimate rto for an nfs rpc sent via. an unreliable datagram. 92 * rpc_calc_rto - Provide an estimated timeout value
84 * Use the mean and mean deviation of rtt for the appropriate type of rpc 93 * @rt: context to use for calculation
85 * for the frequent rpcs and a default for the others. 94 * @timer: timer array index (request type)
86 * The justification for doing "other" this way is that these rpcs 95 *
87 * happen so infrequently that timer est. would probably be stale. 96 * Estimate RTO for an NFS RPC sent via an unreliable datagram. Use
88 * Also, since many of these rpcs are 97 * the mean and mean deviation of RTT for the appropriate type of RPC
89 * non-idempotent, a conservative timeout is desired. 98 * for frequently issued RPCs, and a fixed default for the others.
99 *
100 * The justification for doing "other" this way is that these RPCs
101 * happen so infrequently that timer estimation would probably be
102 * stale. Also, since many of these RPCs are non-idempotent, a
103 * conservative timeout is desired.
104 *
90 * getattr, lookup, 105 * getattr, lookup,
91 * read, write, commit - A+4D 106 * read, write, commit - A+4D
92 * other - timeo 107 * other - timeo
93 */ 108 */
94 109unsigned long rpc_calc_rto(struct rpc_rtt *rt, unsigned timer)
95unsigned long
96rpc_calc_rto(struct rpc_rtt *rt, unsigned timer)
97{ 110{
98 unsigned long res; 111 unsigned long res;
99 112
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index 406e26de584e..8bd690c48b69 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -24,7 +24,7 @@ xdr_encode_netobj(__be32 *p, const struct xdr_netobj *obj)
24 unsigned int quadlen = XDR_QUADLEN(obj->len); 24 unsigned int quadlen = XDR_QUADLEN(obj->len);
25 25
26 p[quadlen] = 0; /* zero trailing bytes */ 26 p[quadlen] = 0; /* zero trailing bytes */
27 *p++ = htonl(obj->len); 27 *p++ = cpu_to_be32(obj->len);
28 memcpy(p, obj->data, obj->len); 28 memcpy(p, obj->data, obj->len);
29 return p + XDR_QUADLEN(obj->len); 29 return p + XDR_QUADLEN(obj->len);
30} 30}
@@ -35,7 +35,7 @@ xdr_decode_netobj(__be32 *p, struct xdr_netobj *obj)
35{ 35{
36 unsigned int len; 36 unsigned int len;
37 37
38 if ((len = ntohl(*p++)) > XDR_MAX_NETOBJ) 38 if ((len = be32_to_cpu(*p++)) > XDR_MAX_NETOBJ)
39 return NULL; 39 return NULL;
40 obj->len = len; 40 obj->len = len;
41 obj->data = (u8 *) p; 41 obj->data = (u8 *) p;
@@ -83,7 +83,7 @@ EXPORT_SYMBOL_GPL(xdr_encode_opaque_fixed);
83 */ 83 */
84__be32 *xdr_encode_opaque(__be32 *p, const void *ptr, unsigned int nbytes) 84__be32 *xdr_encode_opaque(__be32 *p, const void *ptr, unsigned int nbytes)
85{ 85{
86 *p++ = htonl(nbytes); 86 *p++ = cpu_to_be32(nbytes);
87 return xdr_encode_opaque_fixed(p, ptr, nbytes); 87 return xdr_encode_opaque_fixed(p, ptr, nbytes);
88} 88}
89EXPORT_SYMBOL_GPL(xdr_encode_opaque); 89EXPORT_SYMBOL_GPL(xdr_encode_opaque);
@@ -101,7 +101,7 @@ xdr_decode_string_inplace(__be32 *p, char **sp,
101{ 101{
102 u32 len; 102 u32 len;
103 103
104 len = ntohl(*p++); 104 len = be32_to_cpu(*p++);
105 if (len > maxlen) 105 if (len > maxlen)
106 return NULL; 106 return NULL;
107 *lenp = len; 107 *lenp = len;
@@ -771,7 +771,7 @@ xdr_decode_word(struct xdr_buf *buf, unsigned int base, u32 *obj)
771 status = read_bytes_from_xdr_buf(buf, base, &raw, sizeof(*obj)); 771 status = read_bytes_from_xdr_buf(buf, base, &raw, sizeof(*obj));
772 if (status) 772 if (status)
773 return status; 773 return status;
774 *obj = ntohl(raw); 774 *obj = be32_to_cpu(raw);
775 return 0; 775 return 0;
776} 776}
777EXPORT_SYMBOL_GPL(xdr_decode_word); 777EXPORT_SYMBOL_GPL(xdr_decode_word);
@@ -779,7 +779,7 @@ EXPORT_SYMBOL_GPL(xdr_decode_word);
779int 779int
780xdr_encode_word(struct xdr_buf *buf, unsigned int base, u32 obj) 780xdr_encode_word(struct xdr_buf *buf, unsigned int base, u32 obj)
781{ 781{
782 __be32 raw = htonl(obj); 782 __be32 raw = cpu_to_be32(obj);
783 783
784 return write_bytes_to_xdr_buf(buf, base, &raw, sizeof(obj)); 784 return write_bytes_to_xdr_buf(buf, base, &raw, sizeof(obj));
785} 785}
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 1dd6123070e9..9a63f669ece4 100644
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -168,47 +168,25 @@ static struct rpc_xprt_ops xprt_rdma_procs; /* forward reference */
168static void 168static void
169xprt_rdma_format_addresses(struct rpc_xprt *xprt) 169xprt_rdma_format_addresses(struct rpc_xprt *xprt)
170{ 170{
171 struct sockaddr_in *addr = (struct sockaddr_in *) 171 struct sockaddr *sap = (struct sockaddr *)
172 &rpcx_to_rdmad(xprt).addr; 172 &rpcx_to_rdmad(xprt).addr;
173 char *buf; 173 struct sockaddr_in *sin = (struct sockaddr_in *)sap;
174 char buf[64];
174 175
175 buf = kzalloc(20, GFP_KERNEL); 176 (void)rpc_ntop(sap, buf, sizeof(buf));
176 if (buf) 177 xprt->address_strings[RPC_DISPLAY_ADDR] = kstrdup(buf, GFP_KERNEL);
177 snprintf(buf, 20, "%pI4", &addr->sin_addr.s_addr);
178 xprt->address_strings[RPC_DISPLAY_ADDR] = buf;
179 178
180 buf = kzalloc(8, GFP_KERNEL); 179 (void)snprintf(buf, sizeof(buf), "%u", rpc_get_port(sap));
181 if (buf) 180 xprt->address_strings[RPC_DISPLAY_PORT] = kstrdup(buf, GFP_KERNEL);
182 snprintf(buf, 8, "%u", ntohs(addr->sin_port));
183 xprt->address_strings[RPC_DISPLAY_PORT] = buf;
184 181
185 xprt->address_strings[RPC_DISPLAY_PROTO] = "rdma"; 182 xprt->address_strings[RPC_DISPLAY_PROTO] = "rdma";
186 183
187 buf = kzalloc(48, GFP_KERNEL); 184 (void)snprintf(buf, sizeof(buf), "%02x%02x%02x%02x",
188 if (buf) 185 NIPQUAD(sin->sin_addr.s_addr));
189 snprintf(buf, 48, "addr=%pI4 port=%u proto=%s", 186 xprt->address_strings[RPC_DISPLAY_HEX_ADDR] = kstrdup(buf, GFP_KERNEL);
190 &addr->sin_addr.s_addr, 187
191 ntohs(addr->sin_port), "rdma"); 188 (void)snprintf(buf, sizeof(buf), "%4hx", rpc_get_port(sap));
192 xprt->address_strings[RPC_DISPLAY_ALL] = buf; 189 xprt->address_strings[RPC_DISPLAY_HEX_PORT] = kstrdup(buf, GFP_KERNEL);
193
194 buf = kzalloc(10, GFP_KERNEL);
195 if (buf)
196 snprintf(buf, 10, "%02x%02x%02x%02x",
197 NIPQUAD(addr->sin_addr.s_addr));
198 xprt->address_strings[RPC_DISPLAY_HEX_ADDR] = buf;
199
200 buf = kzalloc(8, GFP_KERNEL);
201 if (buf)
202 snprintf(buf, 8, "%4hx", ntohs(addr->sin_port));
203 xprt->address_strings[RPC_DISPLAY_HEX_PORT] = buf;
204
205 buf = kzalloc(30, GFP_KERNEL);
206 if (buf)
207 snprintf(buf, 30, "%pI4.%u.%u",
208 &addr->sin_addr.s_addr,
209 ntohs(addr->sin_port) >> 8,
210 ntohs(addr->sin_port) & 0xff);
211 xprt->address_strings[RPC_DISPLAY_UNIVERSAL_ADDR] = buf;
212 190
213 /* netid */ 191 /* netid */
214 xprt->address_strings[RPC_DISPLAY_NETID] = "rdma"; 192 xprt->address_strings[RPC_DISPLAY_NETID] = "rdma";
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 83c73c4d017a..62438f3a914d 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -248,8 +248,8 @@ struct sock_xprt {
248 * Connection of transports 248 * Connection of transports
249 */ 249 */
250 struct delayed_work connect_worker; 250 struct delayed_work connect_worker;
251 struct sockaddr_storage addr; 251 struct sockaddr_storage srcaddr;
252 unsigned short port; 252 unsigned short srcport;
253 253
254 /* 254 /*
255 * UDP socket buffer size parameters 255 * UDP socket buffer size parameters
@@ -296,117 +296,60 @@ static inline struct sockaddr_in6 *xs_addr_in6(struct rpc_xprt *xprt)
296 return (struct sockaddr_in6 *) &xprt->addr; 296 return (struct sockaddr_in6 *) &xprt->addr;
297} 297}
298 298
299static void xs_format_ipv4_peer_addresses(struct rpc_xprt *xprt, 299static void xs_format_common_peer_addresses(struct rpc_xprt *xprt)
300 const char *protocol,
301 const char *netid)
302{ 300{
303 struct sockaddr_in *addr = xs_addr_in(xprt); 301 struct sockaddr *sap = xs_addr(xprt);
304 char *buf; 302 struct sockaddr_in6 *sin6;
303 struct sockaddr_in *sin;
304 char buf[128];
305 305
306 buf = kzalloc(20, GFP_KERNEL); 306 (void)rpc_ntop(sap, buf, sizeof(buf));
307 if (buf) { 307 xprt->address_strings[RPC_DISPLAY_ADDR] = kstrdup(buf, GFP_KERNEL);
308 snprintf(buf, 20, "%pI4", &addr->sin_addr.s_addr);
309 }
310 xprt->address_strings[RPC_DISPLAY_ADDR] = buf;
311
312 buf = kzalloc(8, GFP_KERNEL);
313 if (buf) {
314 snprintf(buf, 8, "%u",
315 ntohs(addr->sin_port));
316 }
317 xprt->address_strings[RPC_DISPLAY_PORT] = buf;
318
319 xprt->address_strings[RPC_DISPLAY_PROTO] = protocol;
320
321 buf = kzalloc(48, GFP_KERNEL);
322 if (buf) {
323 snprintf(buf, 48, "addr=%pI4 port=%u proto=%s",
324 &addr->sin_addr.s_addr,
325 ntohs(addr->sin_port),
326 protocol);
327 }
328 xprt->address_strings[RPC_DISPLAY_ALL] = buf;
329
330 buf = kzalloc(10, GFP_KERNEL);
331 if (buf) {
332 snprintf(buf, 10, "%02x%02x%02x%02x",
333 NIPQUAD(addr->sin_addr.s_addr));
334 }
335 xprt->address_strings[RPC_DISPLAY_HEX_ADDR] = buf;
336 308
337 buf = kzalloc(8, GFP_KERNEL); 309 switch (sap->sa_family) {
338 if (buf) { 310 case AF_INET:
339 snprintf(buf, 8, "%4hx", 311 sin = xs_addr_in(xprt);
340 ntohs(addr->sin_port)); 312 (void)snprintf(buf, sizeof(buf), "%02x%02x%02x%02x",
341 } 313 NIPQUAD(sin->sin_addr.s_addr));
342 xprt->address_strings[RPC_DISPLAY_HEX_PORT] = buf; 314 break;
343 315 case AF_INET6:
344 buf = kzalloc(30, GFP_KERNEL); 316 sin6 = xs_addr_in6(xprt);
345 if (buf) { 317 (void)snprintf(buf, sizeof(buf), "%pi6", &sin6->sin6_addr);
346 snprintf(buf, 30, "%pI4.%u.%u", 318 break;
347 &addr->sin_addr.s_addr, 319 default:
348 ntohs(addr->sin_port) >> 8, 320 BUG();
349 ntohs(addr->sin_port) & 0xff);
350 } 321 }
351 xprt->address_strings[RPC_DISPLAY_UNIVERSAL_ADDR] = buf; 322 xprt->address_strings[RPC_DISPLAY_HEX_ADDR] = kstrdup(buf, GFP_KERNEL);
352
353 xprt->address_strings[RPC_DISPLAY_NETID] = netid;
354} 323}
355 324
356static void xs_format_ipv6_peer_addresses(struct rpc_xprt *xprt, 325static void xs_format_common_peer_ports(struct rpc_xprt *xprt)
357 const char *protocol,
358 const char *netid)
359{ 326{
360 struct sockaddr_in6 *addr = xs_addr_in6(xprt); 327 struct sockaddr *sap = xs_addr(xprt);
361 char *buf; 328 char buf[128];
362 329
363 buf = kzalloc(40, GFP_KERNEL); 330 (void)snprintf(buf, sizeof(buf), "%u", rpc_get_port(sap));
364 if (buf) { 331 xprt->address_strings[RPC_DISPLAY_PORT] = kstrdup(buf, GFP_KERNEL);
365 snprintf(buf, 40, "%pI6",&addr->sin6_addr);
366 }
367 xprt->address_strings[RPC_DISPLAY_ADDR] = buf;
368 332
369 buf = kzalloc(8, GFP_KERNEL); 333 (void)snprintf(buf, sizeof(buf), "%4hx", rpc_get_port(sap));
370 if (buf) { 334 xprt->address_strings[RPC_DISPLAY_HEX_PORT] = kstrdup(buf, GFP_KERNEL);
371 snprintf(buf, 8, "%u", 335}
372 ntohs(addr->sin6_port));
373 }
374 xprt->address_strings[RPC_DISPLAY_PORT] = buf;
375 336
337static void xs_format_peer_addresses(struct rpc_xprt *xprt,
338 const char *protocol,
339 const char *netid)
340{
376 xprt->address_strings[RPC_DISPLAY_PROTO] = protocol; 341 xprt->address_strings[RPC_DISPLAY_PROTO] = protocol;
342 xprt->address_strings[RPC_DISPLAY_NETID] = netid;
343 xs_format_common_peer_addresses(xprt);
344 xs_format_common_peer_ports(xprt);
345}
377 346
378 buf = kzalloc(64, GFP_KERNEL); 347static void xs_update_peer_port(struct rpc_xprt *xprt)
379 if (buf) { 348{
380 snprintf(buf, 64, "addr=%pI6 port=%u proto=%s", 349 kfree(xprt->address_strings[RPC_DISPLAY_HEX_PORT]);
381 &addr->sin6_addr, 350 kfree(xprt->address_strings[RPC_DISPLAY_PORT]);
382 ntohs(addr->sin6_port),
383 protocol);
384 }
385 xprt->address_strings[RPC_DISPLAY_ALL] = buf;
386
387 buf = kzalloc(36, GFP_KERNEL);
388 if (buf)
389 snprintf(buf, 36, "%pi6", &addr->sin6_addr);
390
391 xprt->address_strings[RPC_DISPLAY_HEX_ADDR] = buf;
392
393 buf = kzalloc(8, GFP_KERNEL);
394 if (buf) {
395 snprintf(buf, 8, "%4hx",
396 ntohs(addr->sin6_port));
397 }
398 xprt->address_strings[RPC_DISPLAY_HEX_PORT] = buf;
399
400 buf = kzalloc(50, GFP_KERNEL);
401 if (buf) {
402 snprintf(buf, 50, "%pI6.%u.%u",
403 &addr->sin6_addr,
404 ntohs(addr->sin6_port) >> 8,
405 ntohs(addr->sin6_port) & 0xff);
406 }
407 xprt->address_strings[RPC_DISPLAY_UNIVERSAL_ADDR] = buf;
408 351
409 xprt->address_strings[RPC_DISPLAY_NETID] = netid; 352 xs_format_common_peer_ports(xprt);
410} 353}
411 354
412static void xs_free_peer_addresses(struct rpc_xprt *xprt) 355static void xs_free_peer_addresses(struct rpc_xprt *xprt)
@@ -1587,25 +1530,15 @@ static unsigned short xs_get_random_port(void)
1587 */ 1530 */
1588static void xs_set_port(struct rpc_xprt *xprt, unsigned short port) 1531static void xs_set_port(struct rpc_xprt *xprt, unsigned short port)
1589{ 1532{
1590 struct sockaddr *addr = xs_addr(xprt);
1591
1592 dprintk("RPC: setting port for xprt %p to %u\n", xprt, port); 1533 dprintk("RPC: setting port for xprt %p to %u\n", xprt, port);
1593 1534
1594 switch (addr->sa_family) { 1535 rpc_set_port(xs_addr(xprt), port);
1595 case AF_INET: 1536 xs_update_peer_port(xprt);
1596 ((struct sockaddr_in *)addr)->sin_port = htons(port);
1597 break;
1598 case AF_INET6:
1599 ((struct sockaddr_in6 *)addr)->sin6_port = htons(port);
1600 break;
1601 default:
1602 BUG();
1603 }
1604} 1537}
1605 1538
1606static unsigned short xs_get_srcport(struct sock_xprt *transport, struct socket *sock) 1539static unsigned short xs_get_srcport(struct sock_xprt *transport, struct socket *sock)
1607{ 1540{
1608 unsigned short port = transport->port; 1541 unsigned short port = transport->srcport;
1609 1542
1610 if (port == 0 && transport->xprt.resvport) 1543 if (port == 0 && transport->xprt.resvport)
1611 port = xs_get_random_port(); 1544 port = xs_get_random_port();
@@ -1614,8 +1547,8 @@ static unsigned short xs_get_srcport(struct sock_xprt *transport, struct socket
1614 1547
1615static unsigned short xs_next_srcport(struct sock_xprt *transport, struct socket *sock, unsigned short port) 1548static unsigned short xs_next_srcport(struct sock_xprt *transport, struct socket *sock, unsigned short port)
1616{ 1549{
1617 if (transport->port != 0) 1550 if (transport->srcport != 0)
1618 transport->port = 0; 1551 transport->srcport = 0;
1619 if (!transport->xprt.resvport) 1552 if (!transport->xprt.resvport)
1620 return 0; 1553 return 0;
1621 if (port <= xprt_min_resvport || port > xprt_max_resvport) 1554 if (port <= xprt_min_resvport || port > xprt_max_resvport)
@@ -1633,7 +1566,7 @@ static int xs_bind4(struct sock_xprt *transport, struct socket *sock)
1633 unsigned short port = xs_get_srcport(transport, sock); 1566 unsigned short port = xs_get_srcport(transport, sock);
1634 unsigned short last; 1567 unsigned short last;
1635 1568
1636 sa = (struct sockaddr_in *)&transport->addr; 1569 sa = (struct sockaddr_in *)&transport->srcaddr;
1637 myaddr.sin_addr = sa->sin_addr; 1570 myaddr.sin_addr = sa->sin_addr;
1638 do { 1571 do {
1639 myaddr.sin_port = htons(port); 1572 myaddr.sin_port = htons(port);
@@ -1642,7 +1575,7 @@ static int xs_bind4(struct sock_xprt *transport, struct socket *sock)
1642 if (port == 0) 1575 if (port == 0)
1643 break; 1576 break;
1644 if (err == 0) { 1577 if (err == 0) {
1645 transport->port = port; 1578 transport->srcport = port;
1646 break; 1579 break;
1647 } 1580 }
1648 last = port; 1581 last = port;
@@ -1666,7 +1599,7 @@ static int xs_bind6(struct sock_xprt *transport, struct socket *sock)
1666 unsigned short port = xs_get_srcport(transport, sock); 1599 unsigned short port = xs_get_srcport(transport, sock);
1667 unsigned short last; 1600 unsigned short last;
1668 1601
1669 sa = (struct sockaddr_in6 *)&transport->addr; 1602 sa = (struct sockaddr_in6 *)&transport->srcaddr;
1670 myaddr.sin6_addr = sa->sin6_addr; 1603 myaddr.sin6_addr = sa->sin6_addr;
1671 do { 1604 do {
1672 myaddr.sin6_port = htons(port); 1605 myaddr.sin6_port = htons(port);
@@ -1675,7 +1608,7 @@ static int xs_bind6(struct sock_xprt *transport, struct socket *sock)
1675 if (port == 0) 1608 if (port == 0)
1676 break; 1609 break;
1677 if (err == 0) { 1610 if (err == 0) {
1678 transport->port = port; 1611 transport->srcport = port;
1679 break; 1612 break;
1680 } 1613 }
1681 last = port; 1614 last = port;
@@ -1780,8 +1713,11 @@ static void xs_udp_connect_worker4(struct work_struct *work)
1780 goto out; 1713 goto out;
1781 } 1714 }
1782 1715
1783 dprintk("RPC: worker connecting xprt %p to address: %s\n", 1716 dprintk("RPC: worker connecting xprt %p via %s to "
1784 xprt, xprt->address_strings[RPC_DISPLAY_ALL]); 1717 "%s (port %s)\n", xprt,
1718 xprt->address_strings[RPC_DISPLAY_PROTO],
1719 xprt->address_strings[RPC_DISPLAY_ADDR],
1720 xprt->address_strings[RPC_DISPLAY_PORT]);
1785 1721
1786 xs_udp_finish_connecting(xprt, sock); 1722 xs_udp_finish_connecting(xprt, sock);
1787 status = 0; 1723 status = 0;
@@ -1822,8 +1758,11 @@ static void xs_udp_connect_worker6(struct work_struct *work)
1822 goto out; 1758 goto out;
1823 } 1759 }
1824 1760
1825 dprintk("RPC: worker connecting xprt %p to address: %s\n", 1761 dprintk("RPC: worker connecting xprt %p via %s to "
1826 xprt, xprt->address_strings[RPC_DISPLAY_ALL]); 1762 "%s (port %s)\n", xprt,
1763 xprt->address_strings[RPC_DISPLAY_PROTO],
1764 xprt->address_strings[RPC_DISPLAY_ADDR],
1765 xprt->address_strings[RPC_DISPLAY_PORT]);
1827 1766
1828 xs_udp_finish_connecting(xprt, sock); 1767 xs_udp_finish_connecting(xprt, sock);
1829 status = 0; 1768 status = 0;
@@ -1948,8 +1887,11 @@ static void xs_tcp_setup_socket(struct rpc_xprt *xprt,
1948 goto out_eagain; 1887 goto out_eagain;
1949 } 1888 }
1950 1889
1951 dprintk("RPC: worker connecting xprt %p to address: %s\n", 1890 dprintk("RPC: worker connecting xprt %p via %s to "
1952 xprt, xprt->address_strings[RPC_DISPLAY_ALL]); 1891 "%s (port %s)\n", xprt,
1892 xprt->address_strings[RPC_DISPLAY_PROTO],
1893 xprt->address_strings[RPC_DISPLAY_ADDR],
1894 xprt->address_strings[RPC_DISPLAY_PORT]);
1953 1895
1954 status = xs_tcp_finish_connecting(xprt, sock); 1896 status = xs_tcp_finish_connecting(xprt, sock);
1955 dprintk("RPC: %p connect status %d connected %d sock state %d\n", 1897 dprintk("RPC: %p connect status %d connected %d sock state %d\n",
@@ -2120,7 +2062,7 @@ static void xs_udp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
2120 struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); 2062 struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
2121 2063
2122 seq_printf(seq, "\txprt:\tudp %u %lu %lu %lu %lu %Lu %Lu\n", 2064 seq_printf(seq, "\txprt:\tudp %u %lu %lu %lu %lu %Lu %Lu\n",
2123 transport->port, 2065 transport->srcport,
2124 xprt->stat.bind_count, 2066 xprt->stat.bind_count,
2125 xprt->stat.sends, 2067 xprt->stat.sends,
2126 xprt->stat.recvs, 2068 xprt->stat.recvs,
@@ -2144,7 +2086,7 @@ static void xs_tcp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
2144 idle_time = (long)(jiffies - xprt->last_used) / HZ; 2086 idle_time = (long)(jiffies - xprt->last_used) / HZ;
2145 2087
2146 seq_printf(seq, "\txprt:\ttcp %u %lu %lu %lu %ld %lu %lu %lu %Lu %Lu\n", 2088 seq_printf(seq, "\txprt:\ttcp %u %lu %lu %lu %ld %lu %lu %lu %Lu %Lu\n",
2147 transport->port, 2089 transport->srcport,
2148 xprt->stat.bind_count, 2090 xprt->stat.bind_count,
2149 xprt->stat.connect_count, 2091 xprt->stat.connect_count,
2150 xprt->stat.connect_time, 2092 xprt->stat.connect_time,
@@ -2223,7 +2165,7 @@ static struct rpc_xprt *xs_setup_xprt(struct xprt_create *args,
2223 memcpy(&xprt->addr, args->dstaddr, args->addrlen); 2165 memcpy(&xprt->addr, args->dstaddr, args->addrlen);
2224 xprt->addrlen = args->addrlen; 2166 xprt->addrlen = args->addrlen;
2225 if (args->srcaddr) 2167 if (args->srcaddr)
2226 memcpy(&new->addr, args->srcaddr, args->addrlen); 2168 memcpy(&new->srcaddr, args->srcaddr, args->addrlen);
2227 2169
2228 return xprt; 2170 return xprt;
2229} 2171}
@@ -2272,7 +2214,7 @@ static struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
2272 2214
2273 INIT_DELAYED_WORK(&transport->connect_worker, 2215 INIT_DELAYED_WORK(&transport->connect_worker,
2274 xs_udp_connect_worker4); 2216 xs_udp_connect_worker4);
2275 xs_format_ipv4_peer_addresses(xprt, "udp", RPCBIND_NETID_UDP); 2217 xs_format_peer_addresses(xprt, "udp", RPCBIND_NETID_UDP);
2276 break; 2218 break;
2277 case AF_INET6: 2219 case AF_INET6:
2278 if (((struct sockaddr_in6 *)addr)->sin6_port != htons(0)) 2220 if (((struct sockaddr_in6 *)addr)->sin6_port != htons(0))
@@ -2280,15 +2222,22 @@ static struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
2280 2222
2281 INIT_DELAYED_WORK(&transport->connect_worker, 2223 INIT_DELAYED_WORK(&transport->connect_worker,
2282 xs_udp_connect_worker6); 2224 xs_udp_connect_worker6);
2283 xs_format_ipv6_peer_addresses(xprt, "udp", RPCBIND_NETID_UDP6); 2225 xs_format_peer_addresses(xprt, "udp", RPCBIND_NETID_UDP6);
2284 break; 2226 break;
2285 default: 2227 default:
2286 kfree(xprt); 2228 kfree(xprt);
2287 return ERR_PTR(-EAFNOSUPPORT); 2229 return ERR_PTR(-EAFNOSUPPORT);
2288 } 2230 }
2289 2231
2290 dprintk("RPC: set up transport to address %s\n", 2232 if (xprt_bound(xprt))
2291 xprt->address_strings[RPC_DISPLAY_ALL]); 2233 dprintk("RPC: set up xprt to %s (port %s) via %s\n",
2234 xprt->address_strings[RPC_DISPLAY_ADDR],
2235 xprt->address_strings[RPC_DISPLAY_PORT],
2236 xprt->address_strings[RPC_DISPLAY_PROTO]);
2237 else
2238 dprintk("RPC: set up xprt to %s (autobind) via %s\n",
2239 xprt->address_strings[RPC_DISPLAY_ADDR],
2240 xprt->address_strings[RPC_DISPLAY_PROTO]);
2292 2241
2293 if (try_module_get(THIS_MODULE)) 2242 if (try_module_get(THIS_MODULE))
2294 return xprt; 2243 return xprt;
@@ -2337,23 +2286,33 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args)
2337 if (((struct sockaddr_in *)addr)->sin_port != htons(0)) 2286 if (((struct sockaddr_in *)addr)->sin_port != htons(0))
2338 xprt_set_bound(xprt); 2287 xprt_set_bound(xprt);
2339 2288
2340 INIT_DELAYED_WORK(&transport->connect_worker, xs_tcp_connect_worker4); 2289 INIT_DELAYED_WORK(&transport->connect_worker,
2341 xs_format_ipv4_peer_addresses(xprt, "tcp", RPCBIND_NETID_TCP); 2290 xs_tcp_connect_worker4);
2291 xs_format_peer_addresses(xprt, "tcp", RPCBIND_NETID_TCP);
2342 break; 2292 break;
2343 case AF_INET6: 2293 case AF_INET6:
2344 if (((struct sockaddr_in6 *)addr)->sin6_port != htons(0)) 2294 if (((struct sockaddr_in6 *)addr)->sin6_port != htons(0))
2345 xprt_set_bound(xprt); 2295 xprt_set_bound(xprt);
2346 2296
2347 INIT_DELAYED_WORK(&transport->connect_worker, xs_tcp_connect_worker6); 2297 INIT_DELAYED_WORK(&transport->connect_worker,
2348 xs_format_ipv6_peer_addresses(xprt, "tcp", RPCBIND_NETID_TCP6); 2298 xs_tcp_connect_worker6);
2299 xs_format_peer_addresses(xprt, "tcp", RPCBIND_NETID_TCP6);
2349 break; 2300 break;
2350 default: 2301 default:
2351 kfree(xprt); 2302 kfree(xprt);
2352 return ERR_PTR(-EAFNOSUPPORT); 2303 return ERR_PTR(-EAFNOSUPPORT);
2353 } 2304 }
2354 2305
2355 dprintk("RPC: set up transport to address %s\n", 2306 if (xprt_bound(xprt))
2356 xprt->address_strings[RPC_DISPLAY_ALL]); 2307 dprintk("RPC: set up xprt to %s (port %s) via %s\n",
2308 xprt->address_strings[RPC_DISPLAY_ADDR],
2309 xprt->address_strings[RPC_DISPLAY_PORT],
2310 xprt->address_strings[RPC_DISPLAY_PROTO]);
2311 else
2312 dprintk("RPC: set up xprt to %s (autobind) via %s\n",
2313 xprt->address_strings[RPC_DISPLAY_ADDR],
2314 xprt->address_strings[RPC_DISPLAY_PROTO]);
2315
2357 2316
2358 if (try_module_get(THIS_MODULE)) 2317 if (try_module_get(THIS_MODULE))
2359 return xprt; 2318 return xprt;
@@ -2412,3 +2371,55 @@ void cleanup_socket_xprt(void)
2412 xprt_unregister_transport(&xs_udp_transport); 2371 xprt_unregister_transport(&xs_udp_transport);
2413 xprt_unregister_transport(&xs_tcp_transport); 2372 xprt_unregister_transport(&xs_tcp_transport);
2414} 2373}
2374
2375static int param_set_uint_minmax(const char *val, struct kernel_param *kp,
2376 unsigned int min, unsigned int max)
2377{
2378 unsigned long num;
2379 int ret;
2380
2381 if (!val)
2382 return -EINVAL;
2383 ret = strict_strtoul(val, 0, &num);
2384 if (ret == -EINVAL || num < min || num > max)
2385 return -EINVAL;
2386 *((unsigned int *)kp->arg) = num;
2387 return 0;
2388}
2389
2390static int param_set_portnr(const char *val, struct kernel_param *kp)
2391{
2392 return param_set_uint_minmax(val, kp,
2393 RPC_MIN_RESVPORT,
2394 RPC_MAX_RESVPORT);
2395}
2396
2397static int param_get_portnr(char *buffer, struct kernel_param *kp)
2398{
2399 return param_get_uint(buffer, kp);
2400}
2401#define param_check_portnr(name, p) \
2402 __param_check(name, p, unsigned int);
2403
2404module_param_named(min_resvport, xprt_min_resvport, portnr, 0644);
2405module_param_named(max_resvport, xprt_max_resvport, portnr, 0644);
2406
2407static int param_set_slot_table_size(const char *val, struct kernel_param *kp)
2408{
2409 return param_set_uint_minmax(val, kp,
2410 RPC_MIN_SLOT_TABLE,
2411 RPC_MAX_SLOT_TABLE);
2412}
2413
2414static int param_get_slot_table_size(char *buffer, struct kernel_param *kp)
2415{
2416 return param_get_uint(buffer, kp);
2417}
2418#define param_check_slot_table_size(name, p) \
2419 __param_check(name, p, unsigned int);
2420
2421module_param_named(tcp_slot_table_entries, xprt_tcp_slot_table_entries,
2422 slot_table_size, 0644);
2423module_param_named(udp_slot_table_entries, xprt_udp_slot_table_entries,
2424 slot_table_size, 0644);
2425
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-29 23:27:03 -0400