blob: b147d1ae71fd9ec3c21ea69f847be1b2b047896d [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/fs/lockd/svc4proc.c
3 *
4 * Lockd server procedures. We don't implement the NLM_*_RES
5 * procedures because we don't use the async procedures.
6 *
7 * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
8 */
9
10#include <linux/types.h>
11#include <linux/time.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#include <linux/lockd/lockd.h>
13#include <linux/lockd/share.h>
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +040014#include <linux/sunrpc/svc_xprt.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070015
16#define NLMDBG_FACILITY NLMDBG_CLIENT
17
Linus Torvalds1da177e2005-04-16 15:20:36 -070018/*
19 * Obtain client and file from arguments
20 */
Al Viro52921e02006-10-19 23:28:46 -070021static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -070022nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
23 struct nlm_host **hostp, struct nlm_file **filp)
24{
25 struct nlm_host *host = NULL;
26 struct nlm_file *file = NULL;
27 struct nlm_lock *lock = &argp->lock;
Al Viro52921e02006-10-19 23:28:46 -070028 __be32 error = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070029
30 /* nfsd callbacks must have been installed for this procedure */
31 if (!nlmsvc_ops)
32 return nlm_lck_denied_nolocks;
33
34 /* Obtain host handle */
Olaf Kirchdb4e4c92006-10-04 02:15:52 -070035 if (!(host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len))
Olaf Kirch977faf32006-10-04 02:15:51 -070036 || (argp->monitor && nsm_monitor(host) < 0))
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 goto no_locks;
38 *hostp = host;
39
40 /* Obtain file pointer. Not used by FREE_ALL call. */
41 if (filp != NULL) {
42 if ((error = nlm_lookup_file(rqstp, &file, &lock->fh)) != 0)
43 goto no_locks;
44 *filp = file;
45
46 /* Set up the missing parts of the file_lock structure */
47 lock->fl.fl_file = file->f_file;
48 lock->fl.fl_owner = (fl_owner_t) host;
49 lock->fl.fl_lmops = &nlmsvc_lock_operations;
50 }
51
52 return 0;
53
54no_locks:
Chuck Lever67216b92010-12-14 15:06:12 +000055 nlmsvc_release_host(host);
Linus Torvalds1da177e2005-04-16 15:20:36 -070056 if (error)
57 return error;
58 return nlm_lck_denied_nolocks;
59}
60
61/*
62 * NULL: Test for presence of service
63 */
Al Viro7111c662006-10-19 23:28:45 -070064static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -070065nlm4svc_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
66{
67 dprintk("lockd: NULL called\n");
68 return rpc_success;
69}
70
71/*
72 * TEST: Check for conflicting lock
73 */
Al Viro7111c662006-10-19 23:28:45 -070074static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -070075nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
76 struct nlm_res *resp)
77{
78 struct nlm_host *host;
79 struct nlm_file *file;
Harvey Harrison317602f2008-07-20 23:41:24 -070080 __be32 rc = rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
82 dprintk("lockd: TEST4 called\n");
83 resp->cookie = argp->cookie;
84
Linus Torvalds1da177e2005-04-16 15:20:36 -070085 /* Obtain client and file */
86 if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
NeilBrownd343fce2006-10-17 00:10:18 -070087 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -070088
89 /* Now check for conflicting locks */
Jeff Layton8f920d52008-07-15 14:06:48 -040090 resp->status = nlmsvc_testlock(rqstp, file, host, &argp->lock, &resp->lock, &resp->cookie);
Marc Eshel5ea0d752006-11-28 16:27:06 -050091 if (resp->status == nlm_drop_reply)
Oleg Drokinb7e6b862007-11-26 13:35:11 -050092 rc = rpc_drop_reply;
93 else
94 dprintk("lockd: TEST4 status %d\n", ntohl(resp->status));
Linus Torvalds1da177e2005-04-16 15:20:36 -070095
Chuck Lever67216b92010-12-14 15:06:12 +000096 nlmsvc_release_host(host);
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 nlm_release_file(file);
Oleg Drokinb7e6b862007-11-26 13:35:11 -050098 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -070099}
100
Al Viro7111c662006-10-19 23:28:45 -0700101static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
103 struct nlm_res *resp)
104{
105 struct nlm_host *host;
106 struct nlm_file *file;
Harvey Harrison317602f2008-07-20 23:41:24 -0700107 __be32 rc = rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108
109 dprintk("lockd: LOCK called\n");
110
111 resp->cookie = argp->cookie;
112
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113 /* Obtain client and file */
114 if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
NeilBrownd343fce2006-10-17 00:10:18 -0700115 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116
117#if 0
118 /* If supplied state doesn't match current state, we assume it's
119 * an old request that time-warped somehow. Any error return would
120 * do in this case because it's irrelevant anyway.
121 *
122 * NB: We don't retrieve the remote host's state yet.
123 */
124 if (host->h_nsmstate && host->h_nsmstate != argp->state) {
125 resp->status = nlm_lck_denied_nolocks;
126 } else
127#endif
128
129 /* Now try to lock the file */
Jeff Layton6cde4de2008-07-15 14:26:17 -0400130 resp->status = nlmsvc_lock(rqstp, file, host, &argp->lock,
J. Bruce Fieldsb2b50282008-02-06 13:59:23 -0500131 argp->block, &argp->cookie,
132 argp->reclaim);
Marc Eshel1a8322b2006-11-28 16:27:06 -0500133 if (resp->status == nlm_drop_reply)
Oleg Drokinb7e6b862007-11-26 13:35:11 -0500134 rc = rpc_drop_reply;
135 else
136 dprintk("lockd: LOCK status %d\n", ntohl(resp->status));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137
Chuck Lever67216b92010-12-14 15:06:12 +0000138 nlmsvc_release_host(host);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139 nlm_release_file(file);
Oleg Drokinb7e6b862007-11-26 13:35:11 -0500140 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141}
142
Al Viro7111c662006-10-19 23:28:45 -0700143static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
145 struct nlm_res *resp)
146{
147 struct nlm_host *host;
148 struct nlm_file *file;
149
150 dprintk("lockd: CANCEL called\n");
151
152 resp->cookie = argp->cookie;
153
154 /* Don't accept requests during grace period */
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400155 if (locks_in_grace(SVC_NET(rqstp))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 resp->status = nlm_lck_denied_grace_period;
157 return rpc_success;
158 }
159
160 /* Obtain client and file */
161 if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
NeilBrownd343fce2006-10-17 00:10:18 -0700162 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163
164 /* Try to cancel request. */
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400165 resp->status = nlmsvc_cancel_blocked(SVC_NET(rqstp), file, &argp->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166
167 dprintk("lockd: CANCEL status %d\n", ntohl(resp->status));
Chuck Lever67216b92010-12-14 15:06:12 +0000168 nlmsvc_release_host(host);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169 nlm_release_file(file);
170 return rpc_success;
171}
172
173/*
174 * UNLOCK: release a lock
175 */
Al Viro7111c662006-10-19 23:28:45 -0700176static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
178 struct nlm_res *resp)
179{
180 struct nlm_host *host;
181 struct nlm_file *file;
182
183 dprintk("lockd: UNLOCK called\n");
184
185 resp->cookie = argp->cookie;
186
187 /* Don't accept new lock requests during grace period */
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400188 if (locks_in_grace(SVC_NET(rqstp))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 resp->status = nlm_lck_denied_grace_period;
190 return rpc_success;
191 }
192
193 /* Obtain client and file */
194 if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
NeilBrownd343fce2006-10-17 00:10:18 -0700195 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196
197 /* Now try to remove the lock */
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400198 resp->status = nlmsvc_unlock(SVC_NET(rqstp), file, &argp->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199
200 dprintk("lockd: UNLOCK status %d\n", ntohl(resp->status));
Chuck Lever67216b92010-12-14 15:06:12 +0000201 nlmsvc_release_host(host);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 nlm_release_file(file);
203 return rpc_success;
204}
205
206/*
207 * GRANTED: A server calls us to tell that a process' lock request
208 * was granted
209 */
Al Viro7111c662006-10-19 23:28:45 -0700210static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211nlm4svc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
212 struct nlm_res *resp)
213{
214 resp->cookie = argp->cookie;
215
216 dprintk("lockd: GRANTED called\n");
Chuck Leverdcff09f2008-10-03 12:50:36 -0400217 resp->status = nlmclnt_grant(svc_addr(rqstp), &argp->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 dprintk("lockd: GRANTED status %d\n", ntohl(resp->status));
219 return rpc_success;
220}
221
222/*
Trond Myklebustd4716622006-03-20 13:44:45 -0500223 * This is the generic lockd callback for async RPC calls
224 */
225static void nlm4svc_callback_exit(struct rpc_task *task, void *data)
226{
Chuck Leverc041b5f2006-12-05 16:36:03 -0500227 dprintk("lockd: %5u callback returned %d\n", task->tk_pid,
Trond Myklebustd4716622006-03-20 13:44:45 -0500228 -task->tk_status);
229}
230
231static void nlm4svc_callback_release(void *data)
232{
Chuck Lever7db836d2010-12-14 15:05:42 +0000233 nlmsvc_release_call(data);
Trond Myklebustd4716622006-03-20 13:44:45 -0500234}
235
236static const struct rpc_call_ops nlm4svc_callback_ops = {
237 .rpc_call_done = nlm4svc_callback_exit,
238 .rpc_release = nlm4svc_callback_release,
239};
240
241/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 * `Async' versions of the above service routines. They aren't really,
243 * because we send the callback before the reply proper. I hope this
244 * doesn't break any clients.
245 */
Al Viro7111c662006-10-19 23:28:45 -0700246static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args *argp,
247 __be32 (*func)(struct svc_rqst *, struct nlm_args *, struct nlm_res *))
Trond Myklebustd4716622006-03-20 13:44:45 -0500248{
249 struct nlm_host *host;
250 struct nlm_rqst *call;
Al Viro7111c662006-10-19 23:28:45 -0700251 __be32 stat;
Trond Myklebustd4716622006-03-20 13:44:45 -0500252
Olaf Kirchdb4e4c92006-10-04 02:15:52 -0700253 host = nlmsvc_lookup_host(rqstp,
254 argp->lock.caller,
255 argp->lock.len);
Trond Myklebustd4716622006-03-20 13:44:45 -0500256 if (host == NULL)
257 return rpc_system_err;
258
259 call = nlm_alloc_call(host);
Al Viro446945a2012-07-26 00:39:50 +0400260 nlmsvc_release_host(host);
Trond Myklebustd4716622006-03-20 13:44:45 -0500261 if (call == NULL)
262 return rpc_system_err;
263
264 stat = func(rqstp, argp, &call->a_res);
265 if (stat != 0) {
Chuck Lever7db836d2010-12-14 15:05:42 +0000266 nlmsvc_release_call(call);
Trond Myklebustd4716622006-03-20 13:44:45 -0500267 return stat;
268 }
269
270 call->a_flags = RPC_TASK_ASYNC;
271 if (nlm_async_reply(call, proc, &nlm4svc_callback_ops) < 0)
272 return rpc_system_err;
273 return rpc_success;
274}
275
Al Viro7111c662006-10-19 23:28:45 -0700276static __be32 nlm4svc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277 void *resp)
278{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 dprintk("lockd: TEST_MSG called\n");
Trond Myklebustd4716622006-03-20 13:44:45 -0500280 return nlm4svc_callback(rqstp, NLMPROC_TEST_RES, argp, nlm4svc_proc_test);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281}
282
Al Viro7111c662006-10-19 23:28:45 -0700283static __be32 nlm4svc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284 void *resp)
285{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 dprintk("lockd: LOCK_MSG called\n");
Trond Myklebustd4716622006-03-20 13:44:45 -0500287 return nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, argp, nlm4svc_proc_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288}
289
Al Viro7111c662006-10-19 23:28:45 -0700290static __be32 nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 void *resp)
292{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 dprintk("lockd: CANCEL_MSG called\n");
Trond Myklebustd4716622006-03-20 13:44:45 -0500294 return nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, argp, nlm4svc_proc_cancel);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295}
296
Al Viro7111c662006-10-19 23:28:45 -0700297static __be32 nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298 void *resp)
299{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300 dprintk("lockd: UNLOCK_MSG called\n");
Trond Myklebustd4716622006-03-20 13:44:45 -0500301 return nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, argp, nlm4svc_proc_unlock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302}
303
Al Viro7111c662006-10-19 23:28:45 -0700304static __be32 nlm4svc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305 void *resp)
306{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307 dprintk("lockd: GRANTED_MSG called\n");
Trond Myklebustd4716622006-03-20 13:44:45 -0500308 return nlm4svc_callback(rqstp, NLMPROC_GRANTED_RES, argp, nlm4svc_proc_granted);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309}
310
311/*
312 * SHARE: create a DOS share or alter existing share.
313 */
Al Viro7111c662006-10-19 23:28:45 -0700314static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315nlm4svc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
316 struct nlm_res *resp)
317{
318 struct nlm_host *host;
319 struct nlm_file *file;
320
321 dprintk("lockd: SHARE called\n");
322
323 resp->cookie = argp->cookie;
324
325 /* Don't accept new lock requests during grace period */
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400326 if (locks_in_grace(SVC_NET(rqstp)) && !argp->reclaim) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327 resp->status = nlm_lck_denied_grace_period;
328 return rpc_success;
329 }
330
331 /* Obtain client and file */
332 if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
NeilBrownd343fce2006-10-17 00:10:18 -0700333 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334
335 /* Now try to create the share */
336 resp->status = nlmsvc_share_file(host, file, argp);
337
338 dprintk("lockd: SHARE status %d\n", ntohl(resp->status));
Chuck Lever67216b92010-12-14 15:06:12 +0000339 nlmsvc_release_host(host);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 nlm_release_file(file);
341 return rpc_success;
342}
343
344/*
345 * UNSHARE: Release a DOS share.
346 */
Al Viro7111c662006-10-19 23:28:45 -0700347static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348nlm4svc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
349 struct nlm_res *resp)
350{
351 struct nlm_host *host;
352 struct nlm_file *file;
353
354 dprintk("lockd: UNSHARE called\n");
355
356 resp->cookie = argp->cookie;
357
358 /* Don't accept requests during grace period */
Stanislav Kinsbursky5ccb0062012-07-25 16:57:22 +0400359 if (locks_in_grace(SVC_NET(rqstp))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360 resp->status = nlm_lck_denied_grace_period;
361 return rpc_success;
362 }
363
364 /* Obtain client and file */
365 if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
NeilBrownd343fce2006-10-17 00:10:18 -0700366 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367
368 /* Now try to lock the file */
369 resp->status = nlmsvc_unshare_file(host, file, argp);
370
371 dprintk("lockd: UNSHARE status %d\n", ntohl(resp->status));
Chuck Lever67216b92010-12-14 15:06:12 +0000372 nlmsvc_release_host(host);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373 nlm_release_file(file);
374 return rpc_success;
375}
376
377/*
378 * NM_LOCK: Create an unmonitored lock
379 */
Al Viro7111c662006-10-19 23:28:45 -0700380static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381nlm4svc_proc_nm_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
382 struct nlm_res *resp)
383{
384 dprintk("lockd: NM_LOCK called\n");
385
386 argp->monitor = 0; /* just clean the monitor flag */
387 return nlm4svc_proc_lock(rqstp, argp, resp);
388}
389
390/*
391 * FREE_ALL: Release all locks and shares held by client
392 */
Al Viro7111c662006-10-19 23:28:45 -0700393static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394nlm4svc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
395 void *resp)
396{
397 struct nlm_host *host;
398
399 /* Obtain client */
400 if (nlm4svc_retrieve_args(rqstp, argp, &host, NULL))
401 return rpc_success;
402
403 nlmsvc_free_host_resources(host);
Chuck Lever67216b92010-12-14 15:06:12 +0000404 nlmsvc_release_host(host);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 return rpc_success;
406}
407
408/*
409 * SM_NOTIFY: private callback from statd (not part of official NLM proto)
410 */
Al Viro7111c662006-10-19 23:28:45 -0700411static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
413 void *resp)
414{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415 dprintk("lockd: SM_NOTIFY called\n");
Chuck Leverb85e4672008-10-03 12:50:44 -0400416
417 if (!nlm_privileged_requester(rqstp)) {
Chuck Leverad06e4b2007-02-12 00:53:32 -0800418 char buf[RPC_MAX_ADDRBUFLEN];
419 printk(KERN_WARNING "lockd: rejected NSM callback from %s\n",
420 svc_print_addr(rqstp, buf, sizeof(buf)));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 return rpc_system_err;
422 }
423
Chuck Lever7fefc9c2008-12-05 19:03:31 -0500424 nlm_host_rebooted(argp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 return rpc_success;
426}
427
428/*
429 * client sent a GRANTED_RES, let's remove the associated block
430 */
Al Viro7111c662006-10-19 23:28:45 -0700431static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432nlm4svc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res *argp,
433 void *resp)
434{
435 if (!nlmsvc_ops)
436 return rpc_success;
437
438 dprintk("lockd: GRANTED_RES called\n");
439
Olaf Kirch39be4502006-10-04 02:16:03 -0700440 nlmsvc_grant_reply(&argp->cookie, argp->status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 return rpc_success;
442}
443
444
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446 * NLM Server procedures.
447 */
448
449#define nlm4svc_encode_norep nlm4svc_encode_void
450#define nlm4svc_decode_norep nlm4svc_decode_void
451#define nlm4svc_decode_testres nlm4svc_decode_void
452#define nlm4svc_decode_lockres nlm4svc_decode_void
453#define nlm4svc_decode_unlockres nlm4svc_decode_void
454#define nlm4svc_decode_cancelres nlm4svc_decode_void
455#define nlm4svc_decode_grantedres nlm4svc_decode_void
456
457#define nlm4svc_proc_none nlm4svc_proc_null
458#define nlm4svc_proc_test_res nlm4svc_proc_null
459#define nlm4svc_proc_lock_res nlm4svc_proc_null
460#define nlm4svc_proc_cancel_res nlm4svc_proc_null
461#define nlm4svc_proc_unlock_res nlm4svc_proc_null
462
463struct nlm_void { int dummy; };
464
465#define PROC(name, xargt, xrest, argt, rest, respsize) \
466 { .pc_func = (svc_procfunc) nlm4svc_proc_##name, \
467 .pc_decode = (kxdrproc_t) nlm4svc_decode_##xargt, \
468 .pc_encode = (kxdrproc_t) nlm4svc_encode_##xrest, \
469 .pc_release = NULL, \
470 .pc_argsize = sizeof(struct nlm_##argt), \
471 .pc_ressize = sizeof(struct nlm_##rest), \
472 .pc_xdrressize = respsize, \
473 }
474#define Ck (1+XDR_QUADLEN(NLM_MAXCOOKIELEN)) /* cookie */
475#define No (1+1024/4) /* netobj */
476#define St 1 /* status */
477#define Rg 4 /* range (offset + length) */
478struct svc_procedure nlmsvc_procedures4[] = {
479 PROC(null, void, void, void, void, 1),
480 PROC(test, testargs, testres, args, res, Ck+St+2+No+Rg),
481 PROC(lock, lockargs, res, args, res, Ck+St),
482 PROC(cancel, cancargs, res, args, res, Ck+St),
483 PROC(unlock, unlockargs, res, args, res, Ck+St),
484 PROC(granted, testargs, res, args, res, Ck+St),
485 PROC(test_msg, testargs, norep, args, void, 1),
486 PROC(lock_msg, lockargs, norep, args, void, 1),
487 PROC(cancel_msg, cancargs, norep, args, void, 1),
488 PROC(unlock_msg, unlockargs, norep, args, void, 1),
489 PROC(granted_msg, testargs, norep, args, void, 1),
490 PROC(test_res, testres, norep, res, void, 1),
491 PROC(lock_res, lockres, norep, res, void, 1),
492 PROC(cancel_res, cancelres, norep, res, void, 1),
493 PROC(unlock_res, unlockres, norep, res, void, 1),
494 PROC(granted_res, res, norep, res, void, 1),
495 /* statd callback */
496 PROC(sm_notify, reboot, void, reboot, void, 1),
497 PROC(none, void, void, void, void, 0),
498 PROC(none, void, void, void, void, 0),
499 PROC(none, void, void, void, void, 0),
500 PROC(share, shareargs, shareres, args, res, Ck+St+1),
501 PROC(unshare, shareargs, shareres, args, res, Ck+St+1),
502 PROC(nm_lock, lockargs, res, args, res, Ck+St),
503 PROC(free_all, notify, void, args, void, 1),
504
505};