blob: 4a714f64515b06557704b38cf02f8ba7f36f7ea0 [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>
12#include <linux/slab.h>
13#include <linux/in.h>
14#include <linux/sunrpc/svc.h>
15#include <linux/sunrpc/clnt.h>
16#include <linux/nfsd/nfsd.h>
17#include <linux/lockd/lockd.h>
18#include <linux/lockd/share.h>
19#include <linux/lockd/sm_inter.h>
20
21
22#define NLMDBG_FACILITY NLMDBG_CLIENT
23
Linus Torvalds1da177e2005-04-16 15:20:36 -070024/*
25 * Obtain client and file from arguments
26 */
Al Viro52921e02006-10-19 23:28:46 -070027static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -070028nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
29 struct nlm_host **hostp, struct nlm_file **filp)
30{
31 struct nlm_host *host = NULL;
32 struct nlm_file *file = NULL;
33 struct nlm_lock *lock = &argp->lock;
Al Viro52921e02006-10-19 23:28:46 -070034 __be32 error = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
36 /* nfsd callbacks must have been installed for this procedure */
37 if (!nlmsvc_ops)
38 return nlm_lck_denied_nolocks;
39
40 /* Obtain host handle */
Olaf Kirchdb4e4c92006-10-04 02:15:52 -070041 if (!(host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len))
Olaf Kirch977faf32006-10-04 02:15:51 -070042 || (argp->monitor && nsm_monitor(host) < 0))
Linus Torvalds1da177e2005-04-16 15:20:36 -070043 goto no_locks;
44 *hostp = host;
45
46 /* Obtain file pointer. Not used by FREE_ALL call. */
47 if (filp != NULL) {
48 if ((error = nlm_lookup_file(rqstp, &file, &lock->fh)) != 0)
49 goto no_locks;
50 *filp = file;
51
52 /* Set up the missing parts of the file_lock structure */
53 lock->fl.fl_file = file->f_file;
54 lock->fl.fl_owner = (fl_owner_t) host;
55 lock->fl.fl_lmops = &nlmsvc_lock_operations;
56 }
57
58 return 0;
59
60no_locks:
Jeff Laytonb0e92aa2008-07-15 12:35:20 -040061 nlm_release_host(host);
Linus Torvalds1da177e2005-04-16 15:20:36 -070062 if (error)
63 return error;
64 return nlm_lck_denied_nolocks;
65}
66
67/*
68 * NULL: Test for presence of service
69 */
Al Viro7111c662006-10-19 23:28:45 -070070static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -070071nlm4svc_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
72{
73 dprintk("lockd: NULL called\n");
74 return rpc_success;
75}
76
77/*
78 * TEST: Check for conflicting lock
79 */
Al Viro7111c662006-10-19 23:28:45 -070080static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -070081nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
82 struct nlm_res *resp)
83{
84 struct nlm_host *host;
85 struct nlm_file *file;
Harvey Harrison317602f2008-07-20 23:41:24 -070086 __be32 rc = rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -070087
88 dprintk("lockd: TEST4 called\n");
89 resp->cookie = argp->cookie;
90
91 /* Don't accept test requests during grace period */
92 if (nlmsvc_grace_period) {
93 resp->status = nlm_lck_denied_grace_period;
Oleg Drokinb7e6b862007-11-26 13:35:11 -050094 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 }
96
97 /* Obtain client and file */
98 if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
NeilBrownd343fce2006-10-17 00:10:18 -070099 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100
101 /* Now check for conflicting locks */
Jeff Layton8f920d52008-07-15 14:06:48 -0400102 resp->status = nlmsvc_testlock(rqstp, file, host, &argp->lock, &resp->lock, &resp->cookie);
Marc Eshel5ea0d752006-11-28 16:27:06 -0500103 if (resp->status == nlm_drop_reply)
Oleg Drokinb7e6b862007-11-26 13:35:11 -0500104 rc = rpc_drop_reply;
105 else
106 dprintk("lockd: TEST4 status %d\n", ntohl(resp->status));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108 nlm_release_host(host);
109 nlm_release_file(file);
Oleg Drokinb7e6b862007-11-26 13:35:11 -0500110 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111}
112
Al Viro7111c662006-10-19 23:28:45 -0700113static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
115 struct nlm_res *resp)
116{
117 struct nlm_host *host;
118 struct nlm_file *file;
Harvey Harrison317602f2008-07-20 23:41:24 -0700119 __be32 rc = rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120
121 dprintk("lockd: LOCK called\n");
122
123 resp->cookie = argp->cookie;
124
125 /* Don't accept new lock requests during grace period */
126 if (nlmsvc_grace_period && !argp->reclaim) {
127 resp->status = nlm_lck_denied_grace_period;
Oleg Drokinb7e6b862007-11-26 13:35:11 -0500128 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129 }
130
131 /* Obtain client and file */
132 if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
NeilBrownd343fce2006-10-17 00:10:18 -0700133 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134
135#if 0
136 /* If supplied state doesn't match current state, we assume it's
137 * an old request that time-warped somehow. Any error return would
138 * do in this case because it's irrelevant anyway.
139 *
140 * NB: We don't retrieve the remote host's state yet.
141 */
142 if (host->h_nsmstate && host->h_nsmstate != argp->state) {
143 resp->status = nlm_lck_denied_nolocks;
144 } else
145#endif
146
147 /* Now try to lock the file */
Jeff Layton6cde4de2008-07-15 14:26:17 -0400148 resp->status = nlmsvc_lock(rqstp, file, host, &argp->lock,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 argp->block, &argp->cookie);
Marc Eshel1a8322b2006-11-28 16:27:06 -0500150 if (resp->status == nlm_drop_reply)
Oleg Drokinb7e6b862007-11-26 13:35:11 -0500151 rc = rpc_drop_reply;
152 else
153 dprintk("lockd: LOCK status %d\n", ntohl(resp->status));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155 nlm_release_host(host);
156 nlm_release_file(file);
Oleg Drokinb7e6b862007-11-26 13:35:11 -0500157 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158}
159
Al Viro7111c662006-10-19 23:28:45 -0700160static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
162 struct nlm_res *resp)
163{
164 struct nlm_host *host;
165 struct nlm_file *file;
166
167 dprintk("lockd: CANCEL called\n");
168
169 resp->cookie = argp->cookie;
170
171 /* Don't accept requests during grace period */
172 if (nlmsvc_grace_period) {
173 resp->status = nlm_lck_denied_grace_period;
174 return rpc_success;
175 }
176
177 /* Obtain client and file */
178 if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
NeilBrownd343fce2006-10-17 00:10:18 -0700179 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180
181 /* Try to cancel request. */
182 resp->status = nlmsvc_cancel_blocked(file, &argp->lock);
183
184 dprintk("lockd: CANCEL status %d\n", ntohl(resp->status));
185 nlm_release_host(host);
186 nlm_release_file(file);
187 return rpc_success;
188}
189
190/*
191 * UNLOCK: release a lock
192 */
Al Viro7111c662006-10-19 23:28:45 -0700193static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
195 struct nlm_res *resp)
196{
197 struct nlm_host *host;
198 struct nlm_file *file;
199
200 dprintk("lockd: UNLOCK called\n");
201
202 resp->cookie = argp->cookie;
203
204 /* Don't accept new lock requests during grace period */
205 if (nlmsvc_grace_period) {
206 resp->status = nlm_lck_denied_grace_period;
207 return rpc_success;
208 }
209
210 /* Obtain client and file */
211 if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
NeilBrownd343fce2006-10-17 00:10:18 -0700212 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213
214 /* Now try to remove the lock */
215 resp->status = nlmsvc_unlock(file, &argp->lock);
216
217 dprintk("lockd: UNLOCK status %d\n", ntohl(resp->status));
218 nlm_release_host(host);
219 nlm_release_file(file);
220 return rpc_success;
221}
222
223/*
224 * GRANTED: A server calls us to tell that a process' lock request
225 * was granted
226 */
Al Viro7111c662006-10-19 23:28:45 -0700227static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228nlm4svc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
229 struct nlm_res *resp)
230{
231 resp->cookie = argp->cookie;
232
233 dprintk("lockd: GRANTED called\n");
Chuck Lever27459f02007-02-12 00:53:34 -0800234 resp->status = nlmclnt_grant(svc_addr_in(rqstp), &argp->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235 dprintk("lockd: GRANTED status %d\n", ntohl(resp->status));
236 return rpc_success;
237}
238
239/*
Trond Myklebustd4716622006-03-20 13:44:45 -0500240 * This is the generic lockd callback for async RPC calls
241 */
242static void nlm4svc_callback_exit(struct rpc_task *task, void *data)
243{
Chuck Leverc041b5f2006-12-05 16:36:03 -0500244 dprintk("lockd: %5u callback returned %d\n", task->tk_pid,
Trond Myklebustd4716622006-03-20 13:44:45 -0500245 -task->tk_status);
246}
247
248static void nlm4svc_callback_release(void *data)
249{
Trond Myklebusta86dc492008-06-11 13:37:09 -0400250 lock_kernel();
Trond Myklebustd4716622006-03-20 13:44:45 -0500251 nlm_release_call(data);
Trond Myklebusta86dc492008-06-11 13:37:09 -0400252 unlock_kernel();
Trond Myklebustd4716622006-03-20 13:44:45 -0500253}
254
255static const struct rpc_call_ops nlm4svc_callback_ops = {
256 .rpc_call_done = nlm4svc_callback_exit,
257 .rpc_release = nlm4svc_callback_release,
258};
259
260/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261 * `Async' versions of the above service routines. They aren't really,
262 * because we send the callback before the reply proper. I hope this
263 * doesn't break any clients.
264 */
Al Viro7111c662006-10-19 23:28:45 -0700265static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args *argp,
266 __be32 (*func)(struct svc_rqst *, struct nlm_args *, struct nlm_res *))
Trond Myklebustd4716622006-03-20 13:44:45 -0500267{
268 struct nlm_host *host;
269 struct nlm_rqst *call;
Al Viro7111c662006-10-19 23:28:45 -0700270 __be32 stat;
Trond Myklebustd4716622006-03-20 13:44:45 -0500271
Olaf Kirchdb4e4c92006-10-04 02:15:52 -0700272 host = nlmsvc_lookup_host(rqstp,
273 argp->lock.caller,
274 argp->lock.len);
Trond Myklebustd4716622006-03-20 13:44:45 -0500275 if (host == NULL)
276 return rpc_system_err;
277
278 call = nlm_alloc_call(host);
279 if (call == NULL)
280 return rpc_system_err;
281
282 stat = func(rqstp, argp, &call->a_res);
283 if (stat != 0) {
284 nlm_release_call(call);
285 return stat;
286 }
287
288 call->a_flags = RPC_TASK_ASYNC;
289 if (nlm_async_reply(call, proc, &nlm4svc_callback_ops) < 0)
290 return rpc_system_err;
291 return rpc_success;
292}
293
Al Viro7111c662006-10-19 23:28:45 -0700294static __be32 nlm4svc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 void *resp)
296{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297 dprintk("lockd: TEST_MSG called\n");
Trond Myklebustd4716622006-03-20 13:44:45 -0500298 return nlm4svc_callback(rqstp, NLMPROC_TEST_RES, argp, nlm4svc_proc_test);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299}
300
Al Viro7111c662006-10-19 23:28:45 -0700301static __be32 nlm4svc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 void *resp)
303{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304 dprintk("lockd: LOCK_MSG called\n");
Trond Myklebustd4716622006-03-20 13:44:45 -0500305 return nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, argp, nlm4svc_proc_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306}
307
Al Viro7111c662006-10-19 23:28:45 -0700308static __be32 nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 void *resp)
310{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 dprintk("lockd: CANCEL_MSG called\n");
Trond Myklebustd4716622006-03-20 13:44:45 -0500312 return nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, argp, nlm4svc_proc_cancel);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313}
314
Al Viro7111c662006-10-19 23:28:45 -0700315static __be32 nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 void *resp)
317{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 dprintk("lockd: UNLOCK_MSG called\n");
Trond Myklebustd4716622006-03-20 13:44:45 -0500319 return nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, argp, nlm4svc_proc_unlock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320}
321
Al Viro7111c662006-10-19 23:28:45 -0700322static __be32 nlm4svc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 void *resp)
324{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325 dprintk("lockd: GRANTED_MSG called\n");
Trond Myklebustd4716622006-03-20 13:44:45 -0500326 return nlm4svc_callback(rqstp, NLMPROC_GRANTED_RES, argp, nlm4svc_proc_granted);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327}
328
329/*
330 * SHARE: create a DOS share or alter existing share.
331 */
Al Viro7111c662006-10-19 23:28:45 -0700332static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333nlm4svc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
334 struct nlm_res *resp)
335{
336 struct nlm_host *host;
337 struct nlm_file *file;
338
339 dprintk("lockd: SHARE called\n");
340
341 resp->cookie = argp->cookie;
342
343 /* Don't accept new lock requests during grace period */
344 if (nlmsvc_grace_period && !argp->reclaim) {
345 resp->status = nlm_lck_denied_grace_period;
346 return rpc_success;
347 }
348
349 /* Obtain client and file */
350 if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
NeilBrownd343fce2006-10-17 00:10:18 -0700351 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352
353 /* Now try to create the share */
354 resp->status = nlmsvc_share_file(host, file, argp);
355
356 dprintk("lockd: SHARE status %d\n", ntohl(resp->status));
357 nlm_release_host(host);
358 nlm_release_file(file);
359 return rpc_success;
360}
361
362/*
363 * UNSHARE: Release a DOS share.
364 */
Al Viro7111c662006-10-19 23:28:45 -0700365static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366nlm4svc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
367 struct nlm_res *resp)
368{
369 struct nlm_host *host;
370 struct nlm_file *file;
371
372 dprintk("lockd: UNSHARE called\n");
373
374 resp->cookie = argp->cookie;
375
376 /* Don't accept requests during grace period */
377 if (nlmsvc_grace_period) {
378 resp->status = nlm_lck_denied_grace_period;
379 return rpc_success;
380 }
381
382 /* Obtain client and file */
383 if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
NeilBrownd343fce2006-10-17 00:10:18 -0700384 return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385
386 /* Now try to lock the file */
387 resp->status = nlmsvc_unshare_file(host, file, argp);
388
389 dprintk("lockd: UNSHARE status %d\n", ntohl(resp->status));
390 nlm_release_host(host);
391 nlm_release_file(file);
392 return rpc_success;
393}
394
395/*
396 * NM_LOCK: Create an unmonitored lock
397 */
Al Viro7111c662006-10-19 23:28:45 -0700398static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399nlm4svc_proc_nm_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
400 struct nlm_res *resp)
401{
402 dprintk("lockd: NM_LOCK called\n");
403
404 argp->monitor = 0; /* just clean the monitor flag */
405 return nlm4svc_proc_lock(rqstp, argp, resp);
406}
407
408/*
409 * FREE_ALL: Release all locks and shares held by client
410 */
Al Viro7111c662006-10-19 23:28:45 -0700411static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412nlm4svc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
413 void *resp)
414{
415 struct nlm_host *host;
416
417 /* Obtain client */
418 if (nlm4svc_retrieve_args(rqstp, argp, &host, NULL))
419 return rpc_success;
420
421 nlmsvc_free_host_resources(host);
422 nlm_release_host(host);
423 return rpc_success;
424}
425
426/*
427 * SM_NOTIFY: private callback from statd (not part of official NLM proto)
428 */
Al Viro7111c662006-10-19 23:28:45 -0700429static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
431 void *resp)
432{
Chuck Lever27459f02007-02-12 00:53:34 -0800433 struct sockaddr_in saddr;
434
435 memcpy(&saddr, svc_addr_in(rqstp), sizeof(saddr));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436
437 dprintk("lockd: SM_NOTIFY called\n");
438 if (saddr.sin_addr.s_addr != htonl(INADDR_LOOPBACK)
439 || ntohs(saddr.sin_port) >= 1024) {
Chuck Leverad06e4b2007-02-12 00:53:32 -0800440 char buf[RPC_MAX_ADDRBUFLEN];
441 printk(KERN_WARNING "lockd: rejected NSM callback from %s\n",
442 svc_print_addr(rqstp, buf, sizeof(buf)));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 return rpc_system_err;
444 }
445
446 /* Obtain the host pointer for this NFS server and try to
447 * reclaim all locks we hold on this server.
448 */
Olaf Kirchcf712c22006-10-04 02:15:52 -0700449 memset(&saddr, 0, sizeof(saddr));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450 saddr.sin_addr.s_addr = argp->addr;
Olaf Kirch5c8dd292006-10-04 02:15:55 -0700451 nlm_host_rebooted(&saddr, argp->mon, argp->len, argp->state);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 return rpc_success;
454}
455
456/*
457 * client sent a GRANTED_RES, let's remove the associated block
458 */
Al Viro7111c662006-10-19 23:28:45 -0700459static __be32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460nlm4svc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res *argp,
461 void *resp)
462{
463 if (!nlmsvc_ops)
464 return rpc_success;
465
466 dprintk("lockd: GRANTED_RES called\n");
467
Olaf Kirch39be4502006-10-04 02:16:03 -0700468 nlmsvc_grant_reply(&argp->cookie, argp->status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469 return rpc_success;
470}
471
472
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 * NLM Server procedures.
475 */
476
477#define nlm4svc_encode_norep nlm4svc_encode_void
478#define nlm4svc_decode_norep nlm4svc_decode_void
479#define nlm4svc_decode_testres nlm4svc_decode_void
480#define nlm4svc_decode_lockres nlm4svc_decode_void
481#define nlm4svc_decode_unlockres nlm4svc_decode_void
482#define nlm4svc_decode_cancelres nlm4svc_decode_void
483#define nlm4svc_decode_grantedres nlm4svc_decode_void
484
485#define nlm4svc_proc_none nlm4svc_proc_null
486#define nlm4svc_proc_test_res nlm4svc_proc_null
487#define nlm4svc_proc_lock_res nlm4svc_proc_null
488#define nlm4svc_proc_cancel_res nlm4svc_proc_null
489#define nlm4svc_proc_unlock_res nlm4svc_proc_null
490
491struct nlm_void { int dummy; };
492
493#define PROC(name, xargt, xrest, argt, rest, respsize) \
494 { .pc_func = (svc_procfunc) nlm4svc_proc_##name, \
495 .pc_decode = (kxdrproc_t) nlm4svc_decode_##xargt, \
496 .pc_encode = (kxdrproc_t) nlm4svc_encode_##xrest, \
497 .pc_release = NULL, \
498 .pc_argsize = sizeof(struct nlm_##argt), \
499 .pc_ressize = sizeof(struct nlm_##rest), \
500 .pc_xdrressize = respsize, \
501 }
502#define Ck (1+XDR_QUADLEN(NLM_MAXCOOKIELEN)) /* cookie */
503#define No (1+1024/4) /* netobj */
504#define St 1 /* status */
505#define Rg 4 /* range (offset + length) */
506struct svc_procedure nlmsvc_procedures4[] = {
507 PROC(null, void, void, void, void, 1),
508 PROC(test, testargs, testres, args, res, Ck+St+2+No+Rg),
509 PROC(lock, lockargs, res, args, res, Ck+St),
510 PROC(cancel, cancargs, res, args, res, Ck+St),
511 PROC(unlock, unlockargs, res, args, res, Ck+St),
512 PROC(granted, testargs, res, args, res, Ck+St),
513 PROC(test_msg, testargs, norep, args, void, 1),
514 PROC(lock_msg, lockargs, norep, args, void, 1),
515 PROC(cancel_msg, cancargs, norep, args, void, 1),
516 PROC(unlock_msg, unlockargs, norep, args, void, 1),
517 PROC(granted_msg, testargs, norep, args, void, 1),
518 PROC(test_res, testres, norep, res, void, 1),
519 PROC(lock_res, lockres, norep, res, void, 1),
520 PROC(cancel_res, cancelres, norep, res, void, 1),
521 PROC(unlock_res, unlockres, norep, res, void, 1),
522 PROC(granted_res, res, norep, res, void, 1),
523 /* statd callback */
524 PROC(sm_notify, reboot, void, reboot, void, 1),
525 PROC(none, void, void, void, void, 0),
526 PROC(none, void, void, void, void, 0),
527 PROC(none, void, void, void, void, 0),
528 PROC(share, shareargs, shareres, args, res, Ck+St+1),
529 PROC(unshare, shareargs, shareres, args, res, Ck+St+1),
530 PROC(nm_lock, lockargs, res, args, res, Ck+St),
531 PROC(free_all, notify, void, args, void, 1),
532
533};