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-rw-r--r--include/linux/lockd/bind.h11
-rw-r--r--include/linux/lockd/lockd.h137
-rw-r--r--include/linux/lockd/xdr.h2
3 files changed, 125 insertions, 25 deletions
diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
index 3d25bcd139d1..e5872dc994c0 100644
--- a/include/linux/lockd/bind.h
+++ b/include/linux/lockd/bind.h
@@ -27,7 +27,6 @@ struct nlmsvc_binding {
27 struct nfs_fh *, 27 struct nfs_fh *,
28 struct file **); 28 struct file **);
29 void (*fclose)(struct file *); 29 void (*fclose)(struct file *);
30 unsigned long (*get_grace_period)(void);
31}; 30};
32 31
33extern struct nlmsvc_binding * nlmsvc_ops; 32extern struct nlmsvc_binding * nlmsvc_ops;
@@ -53,15 +52,7 @@ extern void nlmclnt_done(struct nlm_host *host);
53 52
54extern int nlmclnt_proc(struct nlm_host *host, int cmd, 53extern int nlmclnt_proc(struct nlm_host *host, int cmd,
55 struct file_lock *fl); 54 struct file_lock *fl);
56extern int lockd_up(int proto); 55extern int lockd_up(void);
57extern void lockd_down(void); 56extern void lockd_down(void);
58 57
59unsigned long get_nfs_grace_period(void);
60
61#ifdef CONFIG_NFSD_V4
62unsigned long get_nfs4_grace_period(void);
63#else
64static inline unsigned long get_nfs4_grace_period(void) {return 0;}
65#endif
66
67#endif /* LINUX_LOCKD_BIND_H */ 58#endif /* LINUX_LOCKD_BIND_H */
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index dbb87ab282e8..b56d5aa9b194 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -12,6 +12,8 @@
12#ifdef __KERNEL__ 12#ifdef __KERNEL__
13 13
14#include <linux/in.h> 14#include <linux/in.h>
15#include <linux/in6.h>
16#include <net/ipv6.h>
15#include <linux/fs.h> 17#include <linux/fs.h>
16#include <linux/kref.h> 18#include <linux/kref.h>
17#include <linux/utsname.h> 19#include <linux/utsname.h>
@@ -38,8 +40,9 @@
38 */ 40 */
39struct nlm_host { 41struct nlm_host {
40 struct hlist_node h_hash; /* doubly linked list */ 42 struct hlist_node h_hash; /* doubly linked list */
41 struct sockaddr_in h_addr; /* peer address */ 43 struct sockaddr_storage h_addr; /* peer address */
42 struct sockaddr_in h_saddr; /* our address (optional) */ 44 size_t h_addrlen;
45 struct sockaddr_storage h_srcaddr; /* our address (optional) */
43 struct rpc_clnt * h_rpcclnt; /* RPC client to talk to peer */ 46 struct rpc_clnt * h_rpcclnt; /* RPC client to talk to peer */
44 char * h_name; /* remote hostname */ 47 char * h_name; /* remote hostname */
45 u32 h_version; /* interface version */ 48 u32 h_version; /* interface version */
@@ -61,18 +64,56 @@ struct nlm_host {
61 struct list_head h_granted; /* Locks in GRANTED state */ 64 struct list_head h_granted; /* Locks in GRANTED state */
62 struct list_head h_reclaim; /* Locks in RECLAIM state */ 65 struct list_head h_reclaim; /* Locks in RECLAIM state */
63 struct nsm_handle * h_nsmhandle; /* NSM status handle */ 66 struct nsm_handle * h_nsmhandle; /* NSM status handle */
67
68 char h_addrbuf[48], /* address eyecatchers */
69 h_srcaddrbuf[48];
64}; 70};
65 71
66struct nsm_handle { 72struct nsm_handle {
67 struct list_head sm_link; 73 struct list_head sm_link;
68 atomic_t sm_count; 74 atomic_t sm_count;
69 char * sm_name; 75 char * sm_name;
70 struct sockaddr_in sm_addr; 76 struct sockaddr_storage sm_addr;
77 size_t sm_addrlen;
71 unsigned int sm_monitored : 1, 78 unsigned int sm_monitored : 1,
72 sm_sticky : 1; /* don't unmonitor */ 79 sm_sticky : 1; /* don't unmonitor */
80 char sm_addrbuf[48]; /* address eyecatcher */
73}; 81};
74 82
75/* 83/*
84 * Rigorous type checking on sockaddr type conversions
85 */
86static inline struct sockaddr_in *nlm_addr_in(const struct nlm_host *host)
87{
88 return (struct sockaddr_in *)&host->h_addr;
89}
90
91static inline struct sockaddr *nlm_addr(const struct nlm_host *host)
92{
93 return (struct sockaddr *)&host->h_addr;
94}
95
96static inline struct sockaddr_in *nlm_srcaddr_in(const struct nlm_host *host)
97{
98 return (struct sockaddr_in *)&host->h_srcaddr;
99}
100
101static inline struct sockaddr *nlm_srcaddr(const struct nlm_host *host)
102{
103 return (struct sockaddr *)&host->h_srcaddr;
104}
105
106static inline struct sockaddr_in *nsm_addr_in(const struct nsm_handle *handle)
107{
108 return (struct sockaddr_in *)&handle->sm_addr;
109}
110
111static inline struct sockaddr *nsm_addr(const struct nsm_handle *handle)
112{
113 return (struct sockaddr *)&handle->sm_addr;
114}
115
116/*
76 * Map an fl_owner_t into a unique 32-bit "pid" 117 * Map an fl_owner_t into a unique 32-bit "pid"
77 */ 118 */
78struct nlm_lockowner { 119struct nlm_lockowner {
@@ -166,7 +207,8 @@ int nlm_async_reply(struct nlm_rqst *, u32, const struct rpc_call_ops *);
166struct nlm_wait * nlmclnt_prepare_block(struct nlm_host *host, struct file_lock *fl); 207struct nlm_wait * nlmclnt_prepare_block(struct nlm_host *host, struct file_lock *fl);
167void nlmclnt_finish_block(struct nlm_wait *block); 208void nlmclnt_finish_block(struct nlm_wait *block);
168int nlmclnt_block(struct nlm_wait *block, struct nlm_rqst *req, long timeout); 209int nlmclnt_block(struct nlm_wait *block, struct nlm_rqst *req, long timeout);
169__be32 nlmclnt_grant(const struct sockaddr_in *addr, const struct nlm_lock *); 210__be32 nlmclnt_grant(const struct sockaddr *addr,
211 const struct nlm_lock *lock);
170void nlmclnt_recovery(struct nlm_host *); 212void nlmclnt_recovery(struct nlm_host *);
171int nlmclnt_reclaim(struct nlm_host *, struct file_lock *); 213int nlmclnt_reclaim(struct nlm_host *, struct file_lock *);
172void nlmclnt_next_cookie(struct nlm_cookie *); 214void nlmclnt_next_cookie(struct nlm_cookie *);
@@ -174,12 +216,14 @@ void nlmclnt_next_cookie(struct nlm_cookie *);
174/* 216/*
175 * Host cache 217 * Host cache
176 */ 218 */
177struct nlm_host *nlmclnt_lookup_host(const struct sockaddr_in *sin, 219struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
178 int proto, u32 version, 220 const size_t salen,
221 const unsigned short protocol,
222 const u32 version,
223 const char *hostname);
224struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
179 const char *hostname, 225 const char *hostname,
180 unsigned int hostname_len); 226 const size_t hostname_len);
181struct nlm_host *nlmsvc_lookup_host(struct svc_rqst *, const char *,
182 unsigned int);
183struct rpc_clnt * nlm_bind_host(struct nlm_host *); 227struct rpc_clnt * nlm_bind_host(struct nlm_host *);
184void nlm_rebind_host(struct nlm_host *); 228void nlm_rebind_host(struct nlm_host *);
185struct nlm_host * nlm_get_host(struct nlm_host *); 229struct nlm_host * nlm_get_host(struct nlm_host *);
@@ -201,7 +245,7 @@ typedef int (*nlm_host_match_fn_t)(void *cur, struct nlm_host *ref);
201 */ 245 */
202__be32 nlmsvc_lock(struct svc_rqst *, struct nlm_file *, 246__be32 nlmsvc_lock(struct svc_rqst *, struct nlm_file *,
203 struct nlm_host *, struct nlm_lock *, int, 247 struct nlm_host *, struct nlm_lock *, int,
204 struct nlm_cookie *); 248 struct nlm_cookie *, int);
205__be32 nlmsvc_unlock(struct nlm_file *, struct nlm_lock *); 249__be32 nlmsvc_unlock(struct nlm_file *, struct nlm_lock *);
206__be32 nlmsvc_testlock(struct svc_rqst *, struct nlm_file *, 250__be32 nlmsvc_testlock(struct svc_rqst *, struct nlm_file *,
207 struct nlm_host *, struct nlm_lock *, 251 struct nlm_host *, struct nlm_lock *,
@@ -233,15 +277,82 @@ static inline struct inode *nlmsvc_file_inode(struct nlm_file *file)
233 return file->f_file->f_path.dentry->d_inode; 277 return file->f_file->f_path.dentry->d_inode;
234} 278}
235 279
280static inline int __nlm_privileged_request4(const struct sockaddr *sap)
281{
282 const struct sockaddr_in *sin = (struct sockaddr_in *)sap;
283 return (sin->sin_addr.s_addr == htonl(INADDR_LOOPBACK)) &&
284 (ntohs(sin->sin_port) < 1024);
285}
286
287#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
288static inline int __nlm_privileged_request6(const struct sockaddr *sap)
289{
290 const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
291 return (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LOOPBACK) &&
292 (ntohs(sin6->sin6_port) < 1024);
293}
294#else /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
295static inline int __nlm_privileged_request6(const struct sockaddr *sap)
296{
297 return 0;
298}
299#endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
300
236/* 301/*
237 * Compare two host addresses (needs modifying for ipv6) 302 * Ensure incoming requests are from local privileged callers.
303 *
304 * Return TRUE if sender is local and is connecting via a privileged port;
305 * otherwise return FALSE.
238 */ 306 */
239static inline int nlm_cmp_addr(const struct sockaddr_in *sin1, 307static inline int nlm_privileged_requester(const struct svc_rqst *rqstp)
240 const struct sockaddr_in *sin2)
241{ 308{
309 const struct sockaddr *sap = svc_addr(rqstp);
310
311 switch (sap->sa_family) {
312 case AF_INET:
313 return __nlm_privileged_request4(sap);
314 case AF_INET6:
315 return __nlm_privileged_request6(sap);
316 default:
317 return 0;
318 }
319}
320
321static inline int __nlm_cmp_addr4(const struct sockaddr *sap1,
322 const struct sockaddr *sap2)
323{
324 const struct sockaddr_in *sin1 = (const struct sockaddr_in *)sap1;
325 const struct sockaddr_in *sin2 = (const struct sockaddr_in *)sap2;
242 return sin1->sin_addr.s_addr == sin2->sin_addr.s_addr; 326 return sin1->sin_addr.s_addr == sin2->sin_addr.s_addr;
243} 327}
244 328
329static inline int __nlm_cmp_addr6(const struct sockaddr *sap1,
330 const struct sockaddr *sap2)
331{
332 const struct sockaddr_in6 *sin1 = (const struct sockaddr_in6 *)sap1;
333 const struct sockaddr_in6 *sin2 = (const struct sockaddr_in6 *)sap2;
334 return ipv6_addr_equal(&sin1->sin6_addr, &sin2->sin6_addr);
335}
336
337/*
338 * Compare two host addresses
339 *
340 * Return TRUE if the addresses are the same; otherwise FALSE.
341 */
342static inline int nlm_cmp_addr(const struct sockaddr *sap1,
343 const struct sockaddr *sap2)
344{
345 if (sap1->sa_family == sap2->sa_family) {
346 switch (sap1->sa_family) {
347 case AF_INET:
348 return __nlm_cmp_addr4(sap1, sap2);
349 case AF_INET6:
350 return __nlm_cmp_addr6(sap1, sap2);
351 }
352 }
353 return 0;
354}
355
245/* 356/*
246 * Compare two NLM locks. 357 * Compare two NLM locks.
247 * When the second lock is of type F_UNLCK, this acts like a wildcard. 358 * When the second lock is of type F_UNLCK, this acts like a wildcard.
diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h
index df18fa053bcd..d6b3a802c046 100644
--- a/include/linux/lockd/xdr.h
+++ b/include/linux/lockd/xdr.h
@@ -81,8 +81,6 @@ struct nlm_reboot {
81 unsigned int len; 81 unsigned int len;
82 u32 state; 82 u32 state;
83 __be32 addr; 83 __be32 addr;
84 __be32 vers;
85 __be32 proto;
86}; 84};
87 85
88/* 86/*