diff options
Diffstat (limited to 'include/linux/lockd')
-rw-r--r-- | include/linux/lockd/bind.h | 36 | ||||
-rw-r--r-- | include/linux/lockd/debug.h | 57 | ||||
-rw-r--r-- | include/linux/lockd/lockd.h | 224 | ||||
-rw-r--r-- | include/linux/lockd/nlm.h | 58 | ||||
-rw-r--r-- | include/linux/lockd/share.h | 30 | ||||
-rw-r--r-- | include/linux/lockd/sm_inter.h | 46 | ||||
-rw-r--r-- | include/linux/lockd/xdr.h | 108 | ||||
-rw-r--r-- | include/linux/lockd/xdr4.h | 46 |
8 files changed, 605 insertions, 0 deletions
diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h new file mode 100644 index 000000000000..b054debef2e0 --- /dev/null +++ b/include/linux/lockd/bind.h | |||
@@ -0,0 +1,36 @@ | |||
1 | /* | ||
2 | * linux/include/linux/lockd/bind.h | ||
3 | * | ||
4 | * This is the part of lockd visible to nfsd and the nfs client. | ||
5 | * | ||
6 | * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> | ||
7 | */ | ||
8 | |||
9 | #ifndef LINUX_LOCKD_BIND_H | ||
10 | #define LINUX_LOCKD_BIND_H | ||
11 | |||
12 | #include <linux/lockd/nlm.h> | ||
13 | |||
14 | /* Dummy declarations */ | ||
15 | struct svc_rqst; | ||
16 | |||
17 | /* | ||
18 | * This is the set of functions for lockd->nfsd communication | ||
19 | */ | ||
20 | struct nlmsvc_binding { | ||
21 | u32 (*fopen)(struct svc_rqst *, | ||
22 | struct nfs_fh *, | ||
23 | struct file **); | ||
24 | void (*fclose)(struct file *); | ||
25 | }; | ||
26 | |||
27 | extern struct nlmsvc_binding * nlmsvc_ops; | ||
28 | |||
29 | /* | ||
30 | * Functions exported by the lockd module | ||
31 | */ | ||
32 | extern int nlmclnt_proc(struct inode *, int, struct file_lock *); | ||
33 | extern int lockd_up(void); | ||
34 | extern void lockd_down(void); | ||
35 | |||
36 | #endif /* LINUX_LOCKD_BIND_H */ | ||
diff --git a/include/linux/lockd/debug.h b/include/linux/lockd/debug.h new file mode 100644 index 000000000000..34b2b7f33c3b --- /dev/null +++ b/include/linux/lockd/debug.h | |||
@@ -0,0 +1,57 @@ | |||
1 | /* | ||
2 | * linux/include/linux/lockd/debug.h | ||
3 | * | ||
4 | * Debugging stuff. | ||
5 | * | ||
6 | * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de> | ||
7 | */ | ||
8 | |||
9 | #ifndef LINUX_LOCKD_DEBUG_H | ||
10 | #define LINUX_LOCKD_DEBUG_H | ||
11 | |||
12 | #ifdef __KERNEL__ | ||
13 | |||
14 | #include <linux/sunrpc/debug.h> | ||
15 | |||
16 | /* | ||
17 | * Enable lockd debugging. | ||
18 | * Requires RPC_DEBUG. | ||
19 | */ | ||
20 | #ifdef RPC_DEBUG | ||
21 | # define LOCKD_DEBUG 1 | ||
22 | #endif | ||
23 | |||
24 | #undef ifdebug | ||
25 | #if defined(RPC_DEBUG) && defined(LOCKD_DEBUG) | ||
26 | # define ifdebug(flag) if (unlikely(nlm_debug & NLMDBG_##flag)) | ||
27 | #else | ||
28 | # define ifdebug(flag) if (0) | ||
29 | #endif | ||
30 | |||
31 | #endif /* __KERNEL__ */ | ||
32 | |||
33 | /* | ||
34 | * Debug flags | ||
35 | */ | ||
36 | #define NLMDBG_SVC 0x0001 | ||
37 | #define NLMDBG_CLIENT 0x0002 | ||
38 | #define NLMDBG_CLNTLOCK 0x0004 | ||
39 | #define NLMDBG_SVCLOCK 0x0008 | ||
40 | #define NLMDBG_MONITOR 0x0010 | ||
41 | #define NLMDBG_CLNTSUBS 0x0020 | ||
42 | #define NLMDBG_SVCSUBS 0x0040 | ||
43 | #define NLMDBG_HOSTCACHE 0x0080 | ||
44 | #define NLMDBG_XDR 0x0100 | ||
45 | #define NLMDBG_ALL 0x7fff | ||
46 | |||
47 | |||
48 | /* | ||
49 | * Support for printing NLM cookies in dprintk() | ||
50 | */ | ||
51 | #ifdef RPC_DEBUG | ||
52 | struct nlm_cookie; | ||
53 | /* Call this function with the BKL held (it uses a static buffer) */ | ||
54 | extern const char *nlmdbg_cookie2a(const struct nlm_cookie *); | ||
55 | #endif | ||
56 | |||
57 | #endif /* LINUX_LOCKD_DEBUG_H */ | ||
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h new file mode 100644 index 000000000000..0d9d22578212 --- /dev/null +++ b/include/linux/lockd/lockd.h | |||
@@ -0,0 +1,224 @@ | |||
1 | /* | ||
2 | * linux/include/linux/lockd/lockd.h | ||
3 | * | ||
4 | * General-purpose lockd include file. | ||
5 | * | ||
6 | * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de> | ||
7 | */ | ||
8 | |||
9 | #ifndef LINUX_LOCKD_LOCKD_H | ||
10 | #define LINUX_LOCKD_LOCKD_H | ||
11 | |||
12 | #ifdef __KERNEL__ | ||
13 | |||
14 | #include <linux/config.h> | ||
15 | #include <linux/in.h> | ||
16 | #include <linux/fs.h> | ||
17 | #include <linux/utsname.h> | ||
18 | #include <linux/nfsd/nfsfh.h> | ||
19 | #include <linux/lockd/bind.h> | ||
20 | #include <linux/lockd/xdr.h> | ||
21 | #ifdef CONFIG_LOCKD_V4 | ||
22 | #include <linux/lockd/xdr4.h> | ||
23 | #endif | ||
24 | #include <linux/lockd/debug.h> | ||
25 | |||
26 | /* | ||
27 | * Version string | ||
28 | */ | ||
29 | #define LOCKD_VERSION "0.5" | ||
30 | |||
31 | /* | ||
32 | * Default timeout for RPC calls (seconds) | ||
33 | */ | ||
34 | #define LOCKD_DFLT_TIMEO 10 | ||
35 | |||
36 | /* | ||
37 | * Lockd host handle (used both by the client and server personality). | ||
38 | */ | ||
39 | struct nlm_host { | ||
40 | struct nlm_host * h_next; /* linked list (hash table) */ | ||
41 | struct sockaddr_in h_addr; /* peer address */ | ||
42 | struct rpc_clnt * h_rpcclnt; /* RPC client to talk to peer */ | ||
43 | char h_name[20]; /* remote hostname */ | ||
44 | u32 h_version; /* interface version */ | ||
45 | unsigned short h_proto; /* transport proto */ | ||
46 | unsigned short h_reclaiming : 1, | ||
47 | h_server : 1, /* server side, not client side */ | ||
48 | h_inuse : 1, | ||
49 | h_killed : 1, | ||
50 | h_monitored : 1; | ||
51 | wait_queue_head_t h_gracewait; /* wait while reclaiming */ | ||
52 | u32 h_state; /* pseudo-state counter */ | ||
53 | u32 h_nsmstate; /* true remote NSM state */ | ||
54 | u32 h_pidcount; /* Pseudopids */ | ||
55 | atomic_t h_count; /* reference count */ | ||
56 | struct semaphore h_sema; /* mutex for pmap binding */ | ||
57 | unsigned long h_nextrebind; /* next portmap call */ | ||
58 | unsigned long h_expires; /* eligible for GC */ | ||
59 | struct list_head h_lockowners; /* Lockowners for the client */ | ||
60 | spinlock_t h_lock; | ||
61 | }; | ||
62 | |||
63 | /* | ||
64 | * Map an fl_owner_t into a unique 32-bit "pid" | ||
65 | */ | ||
66 | struct nlm_lockowner { | ||
67 | struct list_head list; | ||
68 | atomic_t count; | ||
69 | |||
70 | struct nlm_host *host; | ||
71 | fl_owner_t owner; | ||
72 | uint32_t pid; | ||
73 | }; | ||
74 | |||
75 | /* | ||
76 | * Memory chunk for NLM client RPC request. | ||
77 | */ | ||
78 | #define NLMCLNT_OHSIZE (sizeof(system_utsname.nodename)+10) | ||
79 | struct nlm_rqst { | ||
80 | unsigned int a_flags; /* initial RPC task flags */ | ||
81 | struct nlm_host * a_host; /* host handle */ | ||
82 | struct nlm_args a_args; /* arguments */ | ||
83 | struct nlm_res a_res; /* result */ | ||
84 | char a_owner[NLMCLNT_OHSIZE]; | ||
85 | }; | ||
86 | |||
87 | /* | ||
88 | * This struct describes a file held open by lockd on behalf of | ||
89 | * an NFS client. | ||
90 | */ | ||
91 | struct nlm_file { | ||
92 | struct nlm_file * f_next; /* linked list */ | ||
93 | struct nfs_fh f_handle; /* NFS file handle */ | ||
94 | struct file * f_file; /* VFS file pointer */ | ||
95 | struct nlm_share * f_shares; /* DOS shares */ | ||
96 | struct nlm_block * f_blocks; /* blocked locks */ | ||
97 | unsigned int f_locks; /* guesstimate # of locks */ | ||
98 | unsigned int f_count; /* reference count */ | ||
99 | struct semaphore f_sema; /* avoid concurrent access */ | ||
100 | int f_hash; /* hash of f_handle */ | ||
101 | }; | ||
102 | |||
103 | /* | ||
104 | * This is a server block (i.e. a lock requested by some client which | ||
105 | * couldn't be granted because of a conflicting lock). | ||
106 | */ | ||
107 | #define NLM_NEVER (~(unsigned long) 0) | ||
108 | struct nlm_block { | ||
109 | struct nlm_block * b_next; /* linked list (all blocks) */ | ||
110 | struct nlm_block * b_fnext; /* linked list (per file) */ | ||
111 | struct nlm_rqst b_call; /* RPC args & callback info */ | ||
112 | struct svc_serv * b_daemon; /* NLM service */ | ||
113 | struct nlm_host * b_host; /* host handle for RPC clnt */ | ||
114 | unsigned long b_when; /* next re-xmit */ | ||
115 | unsigned int b_id; /* block id */ | ||
116 | unsigned char b_queued; /* re-queued */ | ||
117 | unsigned char b_granted; /* VFS granted lock */ | ||
118 | unsigned char b_incall; /* doing callback */ | ||
119 | unsigned char b_done; /* callback complete */ | ||
120 | struct nlm_file * b_file; /* file in question */ | ||
121 | }; | ||
122 | |||
123 | /* | ||
124 | * Valid actions for nlmsvc_traverse_files | ||
125 | */ | ||
126 | #define NLM_ACT_CHECK 0 /* check for locks */ | ||
127 | #define NLM_ACT_MARK 1 /* mark & sweep */ | ||
128 | #define NLM_ACT_UNLOCK 2 /* release all locks */ | ||
129 | |||
130 | /* | ||
131 | * Global variables | ||
132 | */ | ||
133 | extern struct rpc_program nlm_program; | ||
134 | extern struct svc_procedure nlmsvc_procedures[]; | ||
135 | #ifdef CONFIG_LOCKD_V4 | ||
136 | extern struct svc_procedure nlmsvc_procedures4[]; | ||
137 | #endif | ||
138 | extern int nlmsvc_grace_period; | ||
139 | extern unsigned long nlmsvc_timeout; | ||
140 | |||
141 | /* | ||
142 | * Lockd client functions | ||
143 | */ | ||
144 | struct nlm_rqst * nlmclnt_alloc_call(void); | ||
145 | int nlmclnt_block(struct nlm_host *, struct file_lock *, u32 *); | ||
146 | int nlmclnt_cancel(struct nlm_host *, struct file_lock *); | ||
147 | u32 nlmclnt_grant(struct nlm_lock *); | ||
148 | void nlmclnt_recovery(struct nlm_host *, u32); | ||
149 | int nlmclnt_reclaim(struct nlm_host *, struct file_lock *); | ||
150 | int nlmclnt_setgrantargs(struct nlm_rqst *, struct nlm_lock *); | ||
151 | void nlmclnt_freegrantargs(struct nlm_rqst *); | ||
152 | |||
153 | /* | ||
154 | * Host cache | ||
155 | */ | ||
156 | struct nlm_host * nlmclnt_lookup_host(struct sockaddr_in *, int, int); | ||
157 | struct nlm_host * nlmsvc_lookup_host(struct svc_rqst *); | ||
158 | struct nlm_host * nlm_lookup_host(int server, struct sockaddr_in *, int, int); | ||
159 | struct rpc_clnt * nlm_bind_host(struct nlm_host *); | ||
160 | void nlm_rebind_host(struct nlm_host *); | ||
161 | struct nlm_host * nlm_get_host(struct nlm_host *); | ||
162 | void nlm_release_host(struct nlm_host *); | ||
163 | void nlm_shutdown_hosts(void); | ||
164 | extern struct nlm_host *nlm_find_client(void); | ||
165 | |||
166 | |||
167 | /* | ||
168 | * Server-side lock handling | ||
169 | */ | ||
170 | int nlmsvc_async_call(struct nlm_rqst *, u32, rpc_action); | ||
171 | u32 nlmsvc_lock(struct svc_rqst *, struct nlm_file *, | ||
172 | struct nlm_lock *, int, struct nlm_cookie *); | ||
173 | u32 nlmsvc_unlock(struct nlm_file *, struct nlm_lock *); | ||
174 | u32 nlmsvc_testlock(struct nlm_file *, struct nlm_lock *, | ||
175 | struct nlm_lock *); | ||
176 | u32 nlmsvc_cancel_blocked(struct nlm_file *, struct nlm_lock *); | ||
177 | unsigned long nlmsvc_retry_blocked(void); | ||
178 | int nlmsvc_traverse_blocks(struct nlm_host *, struct nlm_file *, | ||
179 | int action); | ||
180 | void nlmsvc_grant_reply(struct svc_rqst *, struct nlm_cookie *, u32); | ||
181 | |||
182 | /* | ||
183 | * File handling for the server personality | ||
184 | */ | ||
185 | u32 nlm_lookup_file(struct svc_rqst *, struct nlm_file **, | ||
186 | struct nfs_fh *); | ||
187 | void nlm_release_file(struct nlm_file *); | ||
188 | void nlmsvc_mark_resources(void); | ||
189 | void nlmsvc_free_host_resources(struct nlm_host *); | ||
190 | void nlmsvc_invalidate_all(void); | ||
191 | |||
192 | static __inline__ struct inode * | ||
193 | nlmsvc_file_inode(struct nlm_file *file) | ||
194 | { | ||
195 | return file->f_file->f_dentry->d_inode; | ||
196 | } | ||
197 | |||
198 | /* | ||
199 | * Compare two host addresses (needs modifying for ipv6) | ||
200 | */ | ||
201 | static __inline__ int | ||
202 | nlm_cmp_addr(struct sockaddr_in *sin1, struct sockaddr_in *sin2) | ||
203 | { | ||
204 | return sin1->sin_addr.s_addr == sin2->sin_addr.s_addr; | ||
205 | } | ||
206 | |||
207 | /* | ||
208 | * Compare two NLM locks. | ||
209 | * When the second lock is of type F_UNLCK, this acts like a wildcard. | ||
210 | */ | ||
211 | static __inline__ int | ||
212 | nlm_compare_locks(struct file_lock *fl1, struct file_lock *fl2) | ||
213 | { | ||
214 | return fl1->fl_pid == fl2->fl_pid | ||
215 | && fl1->fl_start == fl2->fl_start | ||
216 | && fl1->fl_end == fl2->fl_end | ||
217 | &&(fl1->fl_type == fl2->fl_type || fl2->fl_type == F_UNLCK); | ||
218 | } | ||
219 | |||
220 | extern struct lock_manager_operations nlmsvc_lock_operations; | ||
221 | |||
222 | #endif /* __KERNEL__ */ | ||
223 | |||
224 | #endif /* LINUX_LOCKD_LOCKD_H */ | ||
diff --git a/include/linux/lockd/nlm.h b/include/linux/lockd/nlm.h new file mode 100644 index 000000000000..869b630cba24 --- /dev/null +++ b/include/linux/lockd/nlm.h | |||
@@ -0,0 +1,58 @@ | |||
1 | /* | ||
2 | * linux/include/linux/lockd/nlm.h | ||
3 | * | ||
4 | * Declarations for the Network Lock Manager protocol. | ||
5 | * | ||
6 | * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> | ||
7 | */ | ||
8 | |||
9 | #ifndef LINUX_LOCKD_NLM_H | ||
10 | #define LINUX_LOCKD_NLM_H | ||
11 | |||
12 | #include <linux/config.h> | ||
13 | |||
14 | /* Maximum file offset in file_lock.fl_end */ | ||
15 | # define NLM_OFFSET_MAX ((s32) 0x7fffffff) | ||
16 | # define NLM4_OFFSET_MAX ((s64) ((~(u64)0) >> 1)) | ||
17 | |||
18 | /* Return states for NLM */ | ||
19 | enum { | ||
20 | NLM_LCK_GRANTED = 0, | ||
21 | NLM_LCK_DENIED = 1, | ||
22 | NLM_LCK_DENIED_NOLOCKS = 2, | ||
23 | NLM_LCK_BLOCKED = 3, | ||
24 | NLM_LCK_DENIED_GRACE_PERIOD = 4, | ||
25 | #ifdef CONFIG_LOCKD_V4 | ||
26 | NLM_DEADLCK = 5, | ||
27 | NLM_ROFS = 6, | ||
28 | NLM_STALE_FH = 7, | ||
29 | NLM_FBIG = 8, | ||
30 | NLM_FAILED = 9, | ||
31 | #endif | ||
32 | }; | ||
33 | |||
34 | #define NLM_PROGRAM 100021 | ||
35 | |||
36 | #define NLMPROC_NULL 0 | ||
37 | #define NLMPROC_TEST 1 | ||
38 | #define NLMPROC_LOCK 2 | ||
39 | #define NLMPROC_CANCEL 3 | ||
40 | #define NLMPROC_UNLOCK 4 | ||
41 | #define NLMPROC_GRANTED 5 | ||
42 | #define NLMPROC_TEST_MSG 6 | ||
43 | #define NLMPROC_LOCK_MSG 7 | ||
44 | #define NLMPROC_CANCEL_MSG 8 | ||
45 | #define NLMPROC_UNLOCK_MSG 9 | ||
46 | #define NLMPROC_GRANTED_MSG 10 | ||
47 | #define NLMPROC_TEST_RES 11 | ||
48 | #define NLMPROC_LOCK_RES 12 | ||
49 | #define NLMPROC_CANCEL_RES 13 | ||
50 | #define NLMPROC_UNLOCK_RES 14 | ||
51 | #define NLMPROC_GRANTED_RES 15 | ||
52 | #define NLMPROC_NSM_NOTIFY 16 /* statd callback */ | ||
53 | #define NLMPROC_SHARE 20 | ||
54 | #define NLMPROC_UNSHARE 21 | ||
55 | #define NLMPROC_NM_LOCK 22 | ||
56 | #define NLMPROC_FREE_ALL 23 | ||
57 | |||
58 | #endif /* LINUX_LOCKD_NLM_H */ | ||
diff --git a/include/linux/lockd/share.h b/include/linux/lockd/share.h new file mode 100644 index 000000000000..5d8aa325f140 --- /dev/null +++ b/include/linux/lockd/share.h | |||
@@ -0,0 +1,30 @@ | |||
1 | /* | ||
2 | * linux/include/linux/lockd/share.h | ||
3 | * | ||
4 | * DOS share management for lockd. | ||
5 | * | ||
6 | * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> | ||
7 | */ | ||
8 | |||
9 | #ifndef LINUX_LOCKD_SHARE_H | ||
10 | #define LINUX_LOCKD_SHARE_H | ||
11 | |||
12 | /* | ||
13 | * DOS share for a specific file | ||
14 | */ | ||
15 | struct nlm_share { | ||
16 | struct nlm_share * s_next; /* linked list */ | ||
17 | struct nlm_host * s_host; /* client host */ | ||
18 | struct nlm_file * s_file; /* shared file */ | ||
19 | struct xdr_netobj s_owner; /* owner handle */ | ||
20 | u32 s_access; /* access mode */ | ||
21 | u32 s_mode; /* deny mode */ | ||
22 | }; | ||
23 | |||
24 | u32 nlmsvc_share_file(struct nlm_host *, struct nlm_file *, | ||
25 | struct nlm_args *); | ||
26 | u32 nlmsvc_unshare_file(struct nlm_host *, struct nlm_file *, | ||
27 | struct nlm_args *); | ||
28 | int nlmsvc_traverse_shares(struct nlm_host *, struct nlm_file *, int); | ||
29 | |||
30 | #endif /* LINUX_LOCKD_SHARE_H */ | ||
diff --git a/include/linux/lockd/sm_inter.h b/include/linux/lockd/sm_inter.h new file mode 100644 index 000000000000..1080bb6ae315 --- /dev/null +++ b/include/linux/lockd/sm_inter.h | |||
@@ -0,0 +1,46 @@ | |||
1 | /* | ||
2 | * linux/include/linux/lockd/sm_inter.h | ||
3 | * | ||
4 | * Declarations for the kernel statd client. | ||
5 | * | ||
6 | * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> | ||
7 | */ | ||
8 | |||
9 | #ifndef LINUX_LOCKD_SM_INTER_H | ||
10 | #define LINUX_LOCKD_SM_INTER_H | ||
11 | |||
12 | #define SM_PROGRAM 100024 | ||
13 | #define SM_VERSION 1 | ||
14 | #define SM_STAT 1 | ||
15 | #define SM_MON 2 | ||
16 | #define SM_UNMON 3 | ||
17 | #define SM_UNMON_ALL 4 | ||
18 | #define SM_SIMU_CRASH 5 | ||
19 | #define SM_NOTIFY 6 | ||
20 | |||
21 | #define SM_MAXSTRLEN 1024 | ||
22 | |||
23 | /* | ||
24 | * Arguments for all calls to statd | ||
25 | */ | ||
26 | struct nsm_args { | ||
27 | u32 addr; /* remote address */ | ||
28 | u32 prog; /* RPC callback info */ | ||
29 | u32 vers; | ||
30 | u32 proc; | ||
31 | u32 proto; /* protocol (udp/tcp) plus server/client flag */ | ||
32 | }; | ||
33 | |||
34 | /* | ||
35 | * Result returned by statd | ||
36 | */ | ||
37 | struct nsm_res { | ||
38 | u32 status; | ||
39 | u32 state; | ||
40 | }; | ||
41 | |||
42 | int nsm_monitor(struct nlm_host *); | ||
43 | int nsm_unmonitor(struct nlm_host *); | ||
44 | extern u32 nsm_local_state; | ||
45 | |||
46 | #endif /* LINUX_LOCKD_SM_INTER_H */ | ||
diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h new file mode 100644 index 000000000000..d7a5cc4cfa97 --- /dev/null +++ b/include/linux/lockd/xdr.h | |||
@@ -0,0 +1,108 @@ | |||
1 | /* | ||
2 | * linux/include/linux/lockd/xdr.h | ||
3 | * | ||
4 | * XDR types for the NLM protocol | ||
5 | * | ||
6 | * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de> | ||
7 | */ | ||
8 | |||
9 | #ifndef LOCKD_XDR_H | ||
10 | #define LOCKD_XDR_H | ||
11 | |||
12 | #include <linux/fs.h> | ||
13 | #include <linux/nfs.h> | ||
14 | #include <linux/sunrpc/xdr.h> | ||
15 | |||
16 | #define NLM_MAXCOOKIELEN 32 | ||
17 | #define NLM_MAXSTRLEN 1024 | ||
18 | |||
19 | #define nlm_granted __constant_htonl(NLM_LCK_GRANTED) | ||
20 | #define nlm_lck_denied __constant_htonl(NLM_LCK_DENIED) | ||
21 | #define nlm_lck_denied_nolocks __constant_htonl(NLM_LCK_DENIED_NOLOCKS) | ||
22 | #define nlm_lck_blocked __constant_htonl(NLM_LCK_BLOCKED) | ||
23 | #define nlm_lck_denied_grace_period __constant_htonl(NLM_LCK_DENIED_GRACE_PERIOD) | ||
24 | |||
25 | /* Lock info passed via NLM */ | ||
26 | struct nlm_lock { | ||
27 | char * caller; | ||
28 | int len; /* length of "caller" */ | ||
29 | struct nfs_fh fh; | ||
30 | struct xdr_netobj oh; | ||
31 | struct file_lock fl; | ||
32 | }; | ||
33 | |||
34 | /* | ||
35 | * NLM cookies. Technically they can be 1K, but Linux only uses 8 bytes. | ||
36 | * FreeBSD uses 16, Apple Mac OS X 10.3 uses 20. Therefore we set it to | ||
37 | * 32 bytes. | ||
38 | */ | ||
39 | |||
40 | struct nlm_cookie | ||
41 | { | ||
42 | unsigned char data[NLM_MAXCOOKIELEN]; | ||
43 | unsigned int len; | ||
44 | }; | ||
45 | |||
46 | /* | ||
47 | * Generic lockd arguments for all but sm_notify | ||
48 | */ | ||
49 | struct nlm_args { | ||
50 | struct nlm_cookie cookie; | ||
51 | struct nlm_lock lock; | ||
52 | u32 block; | ||
53 | u32 reclaim; | ||
54 | u32 state; | ||
55 | u32 monitor; | ||
56 | u32 fsm_access; | ||
57 | u32 fsm_mode; | ||
58 | }; | ||
59 | |||
60 | typedef struct nlm_args nlm_args; | ||
61 | |||
62 | /* | ||
63 | * Generic lockd result | ||
64 | */ | ||
65 | struct nlm_res { | ||
66 | struct nlm_cookie cookie; | ||
67 | u32 status; | ||
68 | struct nlm_lock lock; | ||
69 | }; | ||
70 | |||
71 | /* | ||
72 | * statd callback when client has rebooted | ||
73 | */ | ||
74 | struct nlm_reboot { | ||
75 | char * mon; | ||
76 | int len; | ||
77 | u32 state; | ||
78 | u32 addr; | ||
79 | u32 vers; | ||
80 | u32 proto; | ||
81 | }; | ||
82 | |||
83 | /* | ||
84 | * Contents of statd callback when monitored host rebooted | ||
85 | */ | ||
86 | #define NLMSVC_XDRSIZE sizeof(struct nlm_args) | ||
87 | |||
88 | int nlmsvc_decode_testargs(struct svc_rqst *, u32 *, struct nlm_args *); | ||
89 | int nlmsvc_encode_testres(struct svc_rqst *, u32 *, struct nlm_res *); | ||
90 | int nlmsvc_decode_lockargs(struct svc_rqst *, u32 *, struct nlm_args *); | ||
91 | int nlmsvc_decode_cancargs(struct svc_rqst *, u32 *, struct nlm_args *); | ||
92 | int nlmsvc_decode_unlockargs(struct svc_rqst *, u32 *, struct nlm_args *); | ||
93 | int nlmsvc_encode_res(struct svc_rqst *, u32 *, struct nlm_res *); | ||
94 | int nlmsvc_decode_res(struct svc_rqst *, u32 *, struct nlm_res *); | ||
95 | int nlmsvc_encode_void(struct svc_rqst *, u32 *, void *); | ||
96 | int nlmsvc_decode_void(struct svc_rqst *, u32 *, void *); | ||
97 | int nlmsvc_decode_shareargs(struct svc_rqst *, u32 *, struct nlm_args *); | ||
98 | int nlmsvc_encode_shareres(struct svc_rqst *, u32 *, struct nlm_res *); | ||
99 | int nlmsvc_decode_notify(struct svc_rqst *, u32 *, struct nlm_args *); | ||
100 | int nlmsvc_decode_reboot(struct svc_rqst *, u32 *, struct nlm_reboot *); | ||
101 | /* | ||
102 | int nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *); | ||
103 | int nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *); | ||
104 | int nlmclt_encode_cancargs(struct rpc_rqst *, u32 *, struct nlm_args *); | ||
105 | int nlmclt_encode_unlockargs(struct rpc_rqst *, u32 *, struct nlm_args *); | ||
106 | */ | ||
107 | |||
108 | #endif /* LOCKD_XDR_H */ | ||
diff --git a/include/linux/lockd/xdr4.h b/include/linux/lockd/xdr4.h new file mode 100644 index 000000000000..cee36e7c0548 --- /dev/null +++ b/include/linux/lockd/xdr4.h | |||
@@ -0,0 +1,46 @@ | |||
1 | /* | ||
2 | * linux/include/linux/lockd/xdr.h | ||
3 | * | ||
4 | * XDR types for the NLM protocol | ||
5 | * | ||
6 | * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de> | ||
7 | */ | ||
8 | |||
9 | #ifndef LOCKD_XDR4_H | ||
10 | #define LOCKD_XDR4_H | ||
11 | |||
12 | #include <linux/fs.h> | ||
13 | #include <linux/nfs.h> | ||
14 | #include <linux/sunrpc/xdr.h> | ||
15 | #include <linux/lockd/xdr.h> | ||
16 | |||
17 | /* error codes new to NLMv4 */ | ||
18 | #define nlm4_deadlock __constant_htonl(NLM_DEADLCK) | ||
19 | #define nlm4_rofs __constant_htonl(NLM_ROFS) | ||
20 | #define nlm4_stale_fh __constant_htonl(NLM_STALE_FH) | ||
21 | #define nlm4_fbig __constant_htonl(NLM_FBIG) | ||
22 | #define nlm4_failed __constant_htonl(NLM_FAILED) | ||
23 | |||
24 | |||
25 | |||
26 | int nlm4svc_decode_testargs(struct svc_rqst *, u32 *, struct nlm_args *); | ||
27 | int nlm4svc_encode_testres(struct svc_rqst *, u32 *, struct nlm_res *); | ||
28 | int nlm4svc_decode_lockargs(struct svc_rqst *, u32 *, struct nlm_args *); | ||
29 | int nlm4svc_decode_cancargs(struct svc_rqst *, u32 *, struct nlm_args *); | ||
30 | int nlm4svc_decode_unlockargs(struct svc_rqst *, u32 *, struct nlm_args *); | ||
31 | int nlm4svc_encode_res(struct svc_rqst *, u32 *, struct nlm_res *); | ||
32 | int nlm4svc_decode_res(struct svc_rqst *, u32 *, struct nlm_res *); | ||
33 | int nlm4svc_encode_void(struct svc_rqst *, u32 *, void *); | ||
34 | int nlm4svc_decode_void(struct svc_rqst *, u32 *, void *); | ||
35 | int nlm4svc_decode_shareargs(struct svc_rqst *, u32 *, struct nlm_args *); | ||
36 | int nlm4svc_encode_shareres(struct svc_rqst *, u32 *, struct nlm_res *); | ||
37 | int nlm4svc_decode_notify(struct svc_rqst *, u32 *, struct nlm_args *); | ||
38 | int nlm4svc_decode_reboot(struct svc_rqst *, u32 *, struct nlm_reboot *); | ||
39 | /* | ||
40 | int nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *); | ||
41 | int nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *); | ||
42 | int nlmclt_encode_cancargs(struct rpc_rqst *, u32 *, struct nlm_args *); | ||
43 | int nlmclt_encode_unlockargs(struct rpc_rqst *, u32 *, struct nlm_args *); | ||
44 | */ | ||
45 | |||
46 | #endif /* LOCKD_XDR4_H */ | ||