Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | /* |
3 | * linux/fs/lockd/svc4proc.c | |
4 | * | |
5 | * Lockd server procedures. We don't implement the NLM_*_RES | |
6 | * procedures because we don't use the async procedures. | |
7 | * | |
8 | * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> | |
9 | */ | |
10 | ||
11 | #include <linux/types.h> | |
12 | #include <linux/time.h> | |
1da177e4 LT |
13 | #include <linux/lockd/lockd.h> |
14 | #include <linux/lockd/share.h> | |
5ccb0066 | 15 | #include <linux/sunrpc/svc_xprt.h> |
1da177e4 LT |
16 | |
17 | #define NLMDBG_FACILITY NLMDBG_CLIENT | |
18 | ||
1da177e4 LT |
19 | /* |
20 | * Obtain client and file from arguments | |
21 | */ | |
52921e02 | 22 | static __be32 |
1da177e4 LT |
23 | nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp, |
24 | struct nlm_host **hostp, struct nlm_file **filp) | |
25 | { | |
26 | struct nlm_host *host = NULL; | |
27 | struct nlm_file *file = NULL; | |
28 | struct nlm_lock *lock = &argp->lock; | |
52921e02 | 29 | __be32 error = 0; |
1da177e4 LT |
30 | |
31 | /* nfsd callbacks must have been installed for this procedure */ | |
32 | if (!nlmsvc_ops) | |
33 | return nlm_lck_denied_nolocks; | |
34 | ||
6930bcbf JL |
35 | if (lock->lock_start > OFFSET_MAX || |
36 | (lock->lock_len && ((lock->lock_len - 1) > (OFFSET_MAX - lock->lock_start)))) | |
37 | return nlm4_fbig; | |
38 | ||
1da177e4 | 39 | /* Obtain host handle */ |
db4e4c9a | 40 | if (!(host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len)) |
977faf39 | 41 | || (argp->monitor && nsm_monitor(host) < 0)) |
1da177e4 LT |
42 | goto no_locks; |
43 | *hostp = host; | |
44 | ||
45 | /* Obtain file pointer. Not used by FREE_ALL call. */ | |
46 | if (filp != NULL) { | |
7f024fcd BF |
47 | int mode = lock_to_openmode(&lock->fl); |
48 | ||
2dc6f19e BF |
49 | error = nlm_lookup_file(rqstp, &file, lock); |
50 | if (error) | |
1da177e4 LT |
51 | goto no_locks; |
52 | *filp = file; | |
53 | ||
54 | /* Set up the missing parts of the file_lock structure */ | |
75c7940d | 55 | lock->fl.fl_flags = FL_POSIX; |
7f024fcd | 56 | lock->fl.fl_file = file->f_file[mode]; |
646d73e9 | 57 | lock->fl.fl_pid = current->tgid; |
6930bcbf JL |
58 | lock->fl.fl_start = (loff_t)lock->lock_start; |
59 | lock->fl.fl_end = lock->lock_len ? | |
60 | (loff_t)(lock->lock_start + lock->lock_len - 1) : | |
61 | OFFSET_MAX; | |
1da177e4 | 62 | lock->fl.fl_lmops = &nlmsvc_lock_operations; |
89e0edfb BC |
63 | nlmsvc_locks_init_private(&lock->fl, host, (pid_t)lock->svid); |
64 | if (!lock->fl.fl_owner) { | |
65 | /* lockowner allocation has failed */ | |
66 | nlmsvc_release_host(host); | |
67 | return nlm_lck_denied_nolocks; | |
68 | } | |
1da177e4 LT |
69 | } |
70 | ||
71 | return 0; | |
72 | ||
73 | no_locks: | |
67216b94 | 74 | nlmsvc_release_host(host); |
1da177e4 LT |
75 | if (error) |
76 | return error; | |
77 | return nlm_lck_denied_nolocks; | |
78 | } | |
79 | ||
80 | /* | |
81 | * NULL: Test for presence of service | |
82 | */ | |
7111c66e | 83 | static __be32 |
a6beb732 | 84 | nlm4svc_proc_null(struct svc_rqst *rqstp) |
1da177e4 LT |
85 | { |
86 | dprintk("lockd: NULL called\n"); | |
87 | return rpc_success; | |
88 | } | |
89 | ||
90 | /* | |
91 | * TEST: Check for conflicting lock | |
92 | */ | |
7111c66e | 93 | static __be32 |
a6beb732 | 94 | __nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp) |
1da177e4 | 95 | { |
a6beb732 | 96 | struct nlm_args *argp = rqstp->rq_argp; |
1da177e4 LT |
97 | struct nlm_host *host; |
98 | struct nlm_file *file; | |
184cefbe | 99 | struct nlm_lockowner *test_owner; |
317602f3 | 100 | __be32 rc = rpc_success; |
1da177e4 LT |
101 | |
102 | dprintk("lockd: TEST4 called\n"); | |
103 | resp->cookie = argp->cookie; | |
104 | ||
1da177e4 LT |
105 | /* Obtain client and file */ |
106 | if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file))) | |
d343fce1 | 107 | return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success; |
1da177e4 | 108 | |
184cefbe | 109 | test_owner = argp->lock.fl.fl_owner; |
1da177e4 | 110 | /* Now check for conflicting locks */ |
8f920d5e | 111 | resp->status = nlmsvc_testlock(rqstp, file, host, &argp->lock, &resp->lock, &resp->cookie); |
5ea0d750 | 112 | if (resp->status == nlm_drop_reply) |
b7e6b869 OD |
113 | rc = rpc_drop_reply; |
114 | else | |
115 | dprintk("lockd: TEST4 status %d\n", ntohl(resp->status)); | |
1da177e4 | 116 | |
184cefbe | 117 | nlmsvc_put_lockowner(test_owner); |
67216b94 | 118 | nlmsvc_release_host(host); |
1da177e4 | 119 | nlm_release_file(file); |
b7e6b869 | 120 | return rc; |
1da177e4 LT |
121 | } |
122 | ||
7111c66e | 123 | static __be32 |
a6beb732 | 124 | nlm4svc_proc_test(struct svc_rqst *rqstp) |
1da177e4 | 125 | { |
a6beb732 CH |
126 | return __nlm4svc_proc_test(rqstp, rqstp->rq_resp); |
127 | } | |
128 | ||
129 | static __be32 | |
130 | __nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_res *resp) | |
131 | { | |
132 | struct nlm_args *argp = rqstp->rq_argp; | |
1da177e4 LT |
133 | struct nlm_host *host; |
134 | struct nlm_file *file; | |
317602f3 | 135 | __be32 rc = rpc_success; |
1da177e4 LT |
136 | |
137 | dprintk("lockd: LOCK called\n"); | |
138 | ||
139 | resp->cookie = argp->cookie; | |
140 | ||
1da177e4 LT |
141 | /* Obtain client and file */ |
142 | if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file))) | |
d343fce1 | 143 | return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success; |
1da177e4 LT |
144 | |
145 | #if 0 | |
146 | /* If supplied state doesn't match current state, we assume it's | |
147 | * an old request that time-warped somehow. Any error return would | |
148 | * do in this case because it's irrelevant anyway. | |
149 | * | |
150 | * NB: We don't retrieve the remote host's state yet. | |
151 | */ | |
152 | if (host->h_nsmstate && host->h_nsmstate != argp->state) { | |
153 | resp->status = nlm_lck_denied_nolocks; | |
154 | } else | |
155 | #endif | |
156 | ||
157 | /* Now try to lock the file */ | |
6cde4de8 | 158 | resp->status = nlmsvc_lock(rqstp, file, host, &argp->lock, |
b2b50289 BF |
159 | argp->block, &argp->cookie, |
160 | argp->reclaim); | |
1a8322b2 | 161 | if (resp->status == nlm_drop_reply) |
b7e6b869 OD |
162 | rc = rpc_drop_reply; |
163 | else | |
164 | dprintk("lockd: LOCK status %d\n", ntohl(resp->status)); | |
1da177e4 | 165 | |
89e0edfb | 166 | nlmsvc_release_lockowner(&argp->lock); |
67216b94 | 167 | nlmsvc_release_host(host); |
1da177e4 | 168 | nlm_release_file(file); |
b7e6b869 | 169 | return rc; |
1da177e4 LT |
170 | } |
171 | ||
7111c66e | 172 | static __be32 |
a6beb732 CH |
173 | nlm4svc_proc_lock(struct svc_rqst *rqstp) |
174 | { | |
175 | return __nlm4svc_proc_lock(rqstp, rqstp->rq_resp); | |
176 | } | |
177 | ||
178 | static __be32 | |
179 | __nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_res *resp) | |
1da177e4 | 180 | { |
a6beb732 | 181 | struct nlm_args *argp = rqstp->rq_argp; |
1da177e4 LT |
182 | struct nlm_host *host; |
183 | struct nlm_file *file; | |
184 | ||
185 | dprintk("lockd: CANCEL called\n"); | |
186 | ||
187 | resp->cookie = argp->cookie; | |
188 | ||
189 | /* Don't accept requests during grace period */ | |
5ccb0066 | 190 | if (locks_in_grace(SVC_NET(rqstp))) { |
1da177e4 LT |
191 | resp->status = nlm_lck_denied_grace_period; |
192 | return rpc_success; | |
193 | } | |
194 | ||
195 | /* Obtain client and file */ | |
196 | if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file))) | |
d343fce1 | 197 | return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success; |
1da177e4 LT |
198 | |
199 | /* Try to cancel request. */ | |
5ccb0066 | 200 | resp->status = nlmsvc_cancel_blocked(SVC_NET(rqstp), file, &argp->lock); |
1da177e4 LT |
201 | |
202 | dprintk("lockd: CANCEL status %d\n", ntohl(resp->status)); | |
89e0edfb | 203 | nlmsvc_release_lockowner(&argp->lock); |
67216b94 | 204 | nlmsvc_release_host(host); |
1da177e4 LT |
205 | nlm_release_file(file); |
206 | return rpc_success; | |
207 | } | |
208 | ||
a6beb732 CH |
209 | static __be32 |
210 | nlm4svc_proc_cancel(struct svc_rqst *rqstp) | |
211 | { | |
212 | return __nlm4svc_proc_cancel(rqstp, rqstp->rq_resp); | |
213 | } | |
214 | ||
1da177e4 LT |
215 | /* |
216 | * UNLOCK: release a lock | |
217 | */ | |
7111c66e | 218 | static __be32 |
a6beb732 | 219 | __nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_res *resp) |
1da177e4 | 220 | { |
a6beb732 | 221 | struct nlm_args *argp = rqstp->rq_argp; |
1da177e4 LT |
222 | struct nlm_host *host; |
223 | struct nlm_file *file; | |
224 | ||
225 | dprintk("lockd: UNLOCK called\n"); | |
226 | ||
227 | resp->cookie = argp->cookie; | |
228 | ||
229 | /* Don't accept new lock requests during grace period */ | |
5ccb0066 | 230 | if (locks_in_grace(SVC_NET(rqstp))) { |
1da177e4 LT |
231 | resp->status = nlm_lck_denied_grace_period; |
232 | return rpc_success; | |
233 | } | |
234 | ||
235 | /* Obtain client and file */ | |
236 | if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file))) | |
d343fce1 | 237 | return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success; |
1da177e4 LT |
238 | |
239 | /* Now try to remove the lock */ | |
5ccb0066 | 240 | resp->status = nlmsvc_unlock(SVC_NET(rqstp), file, &argp->lock); |
1da177e4 LT |
241 | |
242 | dprintk("lockd: UNLOCK status %d\n", ntohl(resp->status)); | |
89e0edfb | 243 | nlmsvc_release_lockowner(&argp->lock); |
67216b94 | 244 | nlmsvc_release_host(host); |
1da177e4 LT |
245 | nlm_release_file(file); |
246 | return rpc_success; | |
247 | } | |
248 | ||
a6beb732 CH |
249 | static __be32 |
250 | nlm4svc_proc_unlock(struct svc_rqst *rqstp) | |
251 | { | |
252 | return __nlm4svc_proc_unlock(rqstp, rqstp->rq_resp); | |
253 | } | |
254 | ||
1da177e4 LT |
255 | /* |
256 | * GRANTED: A server calls us to tell that a process' lock request | |
257 | * was granted | |
258 | */ | |
7111c66e | 259 | static __be32 |
a6beb732 | 260 | __nlm4svc_proc_granted(struct svc_rqst *rqstp, struct nlm_res *resp) |
1da177e4 | 261 | { |
a6beb732 CH |
262 | struct nlm_args *argp = rqstp->rq_argp; |
263 | ||
1da177e4 LT |
264 | resp->cookie = argp->cookie; |
265 | ||
266 | dprintk("lockd: GRANTED called\n"); | |
dcff09f1 | 267 | resp->status = nlmclnt_grant(svc_addr(rqstp), &argp->lock); |
1da177e4 LT |
268 | dprintk("lockd: GRANTED status %d\n", ntohl(resp->status)); |
269 | return rpc_success; | |
270 | } | |
271 | ||
a6beb732 CH |
272 | static __be32 |
273 | nlm4svc_proc_granted(struct svc_rqst *rqstp) | |
274 | { | |
275 | return __nlm4svc_proc_granted(rqstp, rqstp->rq_resp); | |
276 | } | |
277 | ||
d4716624 TM |
278 | /* |
279 | * This is the generic lockd callback for async RPC calls | |
280 | */ | |
281 | static void nlm4svc_callback_exit(struct rpc_task *task, void *data) | |
282 | { | |
d4716624 TM |
283 | } |
284 | ||
285 | static void nlm4svc_callback_release(void *data) | |
286 | { | |
7db836d4 | 287 | nlmsvc_release_call(data); |
d4716624 TM |
288 | } |
289 | ||
290 | static const struct rpc_call_ops nlm4svc_callback_ops = { | |
291 | .rpc_call_done = nlm4svc_callback_exit, | |
292 | .rpc_release = nlm4svc_callback_release, | |
293 | }; | |
294 | ||
1da177e4 LT |
295 | /* |
296 | * `Async' versions of the above service routines. They aren't really, | |
297 | * because we send the callback before the reply proper. I hope this | |
298 | * doesn't break any clients. | |
299 | */ | |
a6beb732 CH |
300 | static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, |
301 | __be32 (*func)(struct svc_rqst *, struct nlm_res *)) | |
1da177e4 | 302 | { |
a6beb732 | 303 | struct nlm_args *argp = rqstp->rq_argp; |
d4716624 TM |
304 | struct nlm_host *host; |
305 | struct nlm_rqst *call; | |
7111c66e | 306 | __be32 stat; |
1da177e4 | 307 | |
db4e4c9a OK |
308 | host = nlmsvc_lookup_host(rqstp, |
309 | argp->lock.caller, | |
310 | argp->lock.len); | |
d4716624 TM |
311 | if (host == NULL) |
312 | return rpc_system_err; | |
313 | ||
314 | call = nlm_alloc_call(host); | |
446945ab | 315 | nlmsvc_release_host(host); |
d4716624 TM |
316 | if (call == NULL) |
317 | return rpc_system_err; | |
318 | ||
a6beb732 | 319 | stat = func(rqstp, &call->a_res); |
d4716624 | 320 | if (stat != 0) { |
7db836d4 | 321 | nlmsvc_release_call(call); |
d4716624 TM |
322 | return stat; |
323 | } | |
1da177e4 | 324 | |
d4716624 TM |
325 | call->a_flags = RPC_TASK_ASYNC; |
326 | if (nlm_async_reply(call, proc, &nlm4svc_callback_ops) < 0) | |
327 | return rpc_system_err; | |
328 | return rpc_success; | |
1da177e4 LT |
329 | } |
330 | ||
a6beb732 | 331 | static __be32 nlm4svc_proc_test_msg(struct svc_rqst *rqstp) |
1da177e4 | 332 | { |
d4716624 | 333 | dprintk("lockd: TEST_MSG called\n"); |
a6beb732 | 334 | return nlm4svc_callback(rqstp, NLMPROC_TEST_RES, __nlm4svc_proc_test); |
d4716624 | 335 | } |
1da177e4 | 336 | |
a6beb732 | 337 | static __be32 nlm4svc_proc_lock_msg(struct svc_rqst *rqstp) |
d4716624 | 338 | { |
1da177e4 | 339 | dprintk("lockd: LOCK_MSG called\n"); |
a6beb732 | 340 | return nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, __nlm4svc_proc_lock); |
1da177e4 LT |
341 | } |
342 | ||
a6beb732 | 343 | static __be32 nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp) |
1da177e4 | 344 | { |
1da177e4 | 345 | dprintk("lockd: CANCEL_MSG called\n"); |
a6beb732 | 346 | return nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, __nlm4svc_proc_cancel); |
1da177e4 LT |
347 | } |
348 | ||
a6beb732 | 349 | static __be32 nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp) |
1da177e4 | 350 | { |
1da177e4 | 351 | dprintk("lockd: UNLOCK_MSG called\n"); |
a6beb732 | 352 | return nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, __nlm4svc_proc_unlock); |
1da177e4 LT |
353 | } |
354 | ||
a6beb732 | 355 | static __be32 nlm4svc_proc_granted_msg(struct svc_rqst *rqstp) |
1da177e4 | 356 | { |
1da177e4 | 357 | dprintk("lockd: GRANTED_MSG called\n"); |
a6beb732 | 358 | return nlm4svc_callback(rqstp, NLMPROC_GRANTED_RES, __nlm4svc_proc_granted); |
1da177e4 LT |
359 | } |
360 | ||
361 | /* | |
362 | * SHARE: create a DOS share or alter existing share. | |
363 | */ | |
7111c66e | 364 | static __be32 |
a6beb732 | 365 | nlm4svc_proc_share(struct svc_rqst *rqstp) |
1da177e4 | 366 | { |
a6beb732 CH |
367 | struct nlm_args *argp = rqstp->rq_argp; |
368 | struct nlm_res *resp = rqstp->rq_resp; | |
1da177e4 LT |
369 | struct nlm_host *host; |
370 | struct nlm_file *file; | |
371 | ||
372 | dprintk("lockd: SHARE called\n"); | |
373 | ||
374 | resp->cookie = argp->cookie; | |
375 | ||
376 | /* Don't accept new lock requests during grace period */ | |
5ccb0066 | 377 | if (locks_in_grace(SVC_NET(rqstp)) && !argp->reclaim) { |
1da177e4 LT |
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))) | |
d343fce1 | 384 | return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success; |
1da177e4 LT |
385 | |
386 | /* Now try to create the share */ | |
387 | resp->status = nlmsvc_share_file(host, file, argp); | |
388 | ||
389 | dprintk("lockd: SHARE status %d\n", ntohl(resp->status)); | |
89e0edfb | 390 | nlmsvc_release_lockowner(&argp->lock); |
67216b94 | 391 | nlmsvc_release_host(host); |
1da177e4 LT |
392 | nlm_release_file(file); |
393 | return rpc_success; | |
394 | } | |
395 | ||
396 | /* | |
397 | * UNSHARE: Release a DOS share. | |
398 | */ | |
7111c66e | 399 | static __be32 |
a6beb732 | 400 | nlm4svc_proc_unshare(struct svc_rqst *rqstp) |
1da177e4 | 401 | { |
a6beb732 CH |
402 | struct nlm_args *argp = rqstp->rq_argp; |
403 | struct nlm_res *resp = rqstp->rq_resp; | |
1da177e4 LT |
404 | struct nlm_host *host; |
405 | struct nlm_file *file; | |
406 | ||
407 | dprintk("lockd: UNSHARE called\n"); | |
408 | ||
409 | resp->cookie = argp->cookie; | |
410 | ||
411 | /* Don't accept requests during grace period */ | |
5ccb0066 | 412 | if (locks_in_grace(SVC_NET(rqstp))) { |
1da177e4 LT |
413 | resp->status = nlm_lck_denied_grace_period; |
414 | return rpc_success; | |
415 | } | |
416 | ||
417 | /* Obtain client and file */ | |
418 | if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file))) | |
d343fce1 | 419 | return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success; |
1da177e4 LT |
420 | |
421 | /* Now try to lock the file */ | |
422 | resp->status = nlmsvc_unshare_file(host, file, argp); | |
423 | ||
424 | dprintk("lockd: UNSHARE status %d\n", ntohl(resp->status)); | |
89e0edfb | 425 | nlmsvc_release_lockowner(&argp->lock); |
67216b94 | 426 | nlmsvc_release_host(host); |
1da177e4 LT |
427 | nlm_release_file(file); |
428 | return rpc_success; | |
429 | } | |
430 | ||
431 | /* | |
432 | * NM_LOCK: Create an unmonitored lock | |
433 | */ | |
7111c66e | 434 | static __be32 |
a6beb732 | 435 | nlm4svc_proc_nm_lock(struct svc_rqst *rqstp) |
1da177e4 | 436 | { |
a6beb732 CH |
437 | struct nlm_args *argp = rqstp->rq_argp; |
438 | ||
1da177e4 LT |
439 | dprintk("lockd: NM_LOCK called\n"); |
440 | ||
441 | argp->monitor = 0; /* just clean the monitor flag */ | |
a6beb732 | 442 | return nlm4svc_proc_lock(rqstp); |
1da177e4 LT |
443 | } |
444 | ||
445 | /* | |
446 | * FREE_ALL: Release all locks and shares held by client | |
447 | */ | |
7111c66e | 448 | static __be32 |
a6beb732 | 449 | nlm4svc_proc_free_all(struct svc_rqst *rqstp) |
1da177e4 | 450 | { |
a6beb732 | 451 | struct nlm_args *argp = rqstp->rq_argp; |
1da177e4 LT |
452 | struct nlm_host *host; |
453 | ||
454 | /* Obtain client */ | |
455 | if (nlm4svc_retrieve_args(rqstp, argp, &host, NULL)) | |
456 | return rpc_success; | |
457 | ||
458 | nlmsvc_free_host_resources(host); | |
67216b94 | 459 | nlmsvc_release_host(host); |
1da177e4 LT |
460 | return rpc_success; |
461 | } | |
462 | ||
463 | /* | |
464 | * SM_NOTIFY: private callback from statd (not part of official NLM proto) | |
465 | */ | |
7111c66e | 466 | static __be32 |
a6beb732 | 467 | nlm4svc_proc_sm_notify(struct svc_rqst *rqstp) |
1da177e4 | 468 | { |
a6beb732 CH |
469 | struct nlm_reboot *argp = rqstp->rq_argp; |
470 | ||
1da177e4 | 471 | dprintk("lockd: SM_NOTIFY called\n"); |
b85e4676 CL |
472 | |
473 | if (!nlm_privileged_requester(rqstp)) { | |
ad06e4bd CL |
474 | char buf[RPC_MAX_ADDRBUFLEN]; |
475 | printk(KERN_WARNING "lockd: rejected NSM callback from %s\n", | |
476 | svc_print_addr(rqstp, buf, sizeof(buf))); | |
1da177e4 LT |
477 | return rpc_system_err; |
478 | } | |
479 | ||
0ad95472 | 480 | nlm_host_rebooted(SVC_NET(rqstp), argp); |
1da177e4 LT |
481 | return rpc_success; |
482 | } | |
483 | ||
484 | /* | |
485 | * client sent a GRANTED_RES, let's remove the associated block | |
486 | */ | |
7111c66e | 487 | static __be32 |
a6beb732 | 488 | nlm4svc_proc_granted_res(struct svc_rqst *rqstp) |
1da177e4 | 489 | { |
a6beb732 CH |
490 | struct nlm_res *argp = rqstp->rq_argp; |
491 | ||
1da177e4 LT |
492 | if (!nlmsvc_ops) |
493 | return rpc_success; | |
494 | ||
495 | dprintk("lockd: GRANTED_RES called\n"); | |
496 | ||
39be4502 | 497 | nlmsvc_grant_reply(&argp->cookie, argp->status); |
1da177e4 LT |
498 | return rpc_success; |
499 | } | |
500 | ||
49d99608 CL |
501 | static __be32 |
502 | nlm4svc_proc_unused(struct svc_rqst *rqstp) | |
503 | { | |
504 | return rpc_proc_unavail; | |
505 | } | |
506 | ||
1da177e4 | 507 | |
1da177e4 LT |
508 | /* |
509 | * NLM Server procedures. | |
510 | */ | |
511 | ||
1da177e4 LT |
512 | struct nlm_void { int dummy; }; |
513 | ||
1da177e4 LT |
514 | #define Ck (1+XDR_QUADLEN(NLM_MAXCOOKIELEN)) /* cookie */ |
515 | #define No (1+1024/4) /* netobj */ | |
516 | #define St 1 /* status */ | |
517 | #define Rg 4 /* range (offset + length) */ | |
1da177e4 | 518 | |
49d99608 CL |
519 | const struct svc_procedure nlmsvc_procedures4[24] = { |
520 | [NLMPROC_NULL] = { | |
521 | .pc_func = nlm4svc_proc_null, | |
522 | .pc_decode = nlm4svc_decode_void, | |
523 | .pc_encode = nlm4svc_encode_void, | |
524 | .pc_argsize = sizeof(struct nlm_void), | |
103cc1fa | 525 | .pc_argzero = sizeof(struct nlm_void), |
49d99608 CL |
526 | .pc_ressize = sizeof(struct nlm_void), |
527 | .pc_xdrressize = St, | |
2289e87b | 528 | .pc_name = "NULL", |
49d99608 CL |
529 | }, |
530 | [NLMPROC_TEST] = { | |
531 | .pc_func = nlm4svc_proc_test, | |
532 | .pc_decode = nlm4svc_decode_testargs, | |
533 | .pc_encode = nlm4svc_encode_testres, | |
534 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 535 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
536 | .pc_ressize = sizeof(struct nlm_res), |
537 | .pc_xdrressize = Ck+St+2+No+Rg, | |
2289e87b | 538 | .pc_name = "TEST", |
49d99608 CL |
539 | }, |
540 | [NLMPROC_LOCK] = { | |
541 | .pc_func = nlm4svc_proc_lock, | |
542 | .pc_decode = nlm4svc_decode_lockargs, | |
543 | .pc_encode = nlm4svc_encode_res, | |
544 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 545 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
546 | .pc_ressize = sizeof(struct nlm_res), |
547 | .pc_xdrressize = Ck+St, | |
2289e87b | 548 | .pc_name = "LOCK", |
49d99608 CL |
549 | }, |
550 | [NLMPROC_CANCEL] = { | |
551 | .pc_func = nlm4svc_proc_cancel, | |
552 | .pc_decode = nlm4svc_decode_cancargs, | |
553 | .pc_encode = nlm4svc_encode_res, | |
554 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 555 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
556 | .pc_ressize = sizeof(struct nlm_res), |
557 | .pc_xdrressize = Ck+St, | |
2289e87b | 558 | .pc_name = "CANCEL", |
49d99608 CL |
559 | }, |
560 | [NLMPROC_UNLOCK] = { | |
561 | .pc_func = nlm4svc_proc_unlock, | |
562 | .pc_decode = nlm4svc_decode_unlockargs, | |
563 | .pc_encode = nlm4svc_encode_res, | |
564 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 565 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
566 | .pc_ressize = sizeof(struct nlm_res), |
567 | .pc_xdrressize = Ck+St, | |
2289e87b | 568 | .pc_name = "UNLOCK", |
49d99608 CL |
569 | }, |
570 | [NLMPROC_GRANTED] = { | |
571 | .pc_func = nlm4svc_proc_granted, | |
572 | .pc_decode = nlm4svc_decode_testargs, | |
573 | .pc_encode = nlm4svc_encode_res, | |
574 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 575 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
576 | .pc_ressize = sizeof(struct nlm_res), |
577 | .pc_xdrressize = Ck+St, | |
2289e87b | 578 | .pc_name = "GRANTED", |
49d99608 CL |
579 | }, |
580 | [NLMPROC_TEST_MSG] = { | |
581 | .pc_func = nlm4svc_proc_test_msg, | |
582 | .pc_decode = nlm4svc_decode_testargs, | |
583 | .pc_encode = nlm4svc_encode_void, | |
584 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 585 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
586 | .pc_ressize = sizeof(struct nlm_void), |
587 | .pc_xdrressize = St, | |
2289e87b | 588 | .pc_name = "TEST_MSG", |
49d99608 CL |
589 | }, |
590 | [NLMPROC_LOCK_MSG] = { | |
591 | .pc_func = nlm4svc_proc_lock_msg, | |
592 | .pc_decode = nlm4svc_decode_lockargs, | |
593 | .pc_encode = nlm4svc_encode_void, | |
594 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 595 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
596 | .pc_ressize = sizeof(struct nlm_void), |
597 | .pc_xdrressize = St, | |
2289e87b | 598 | .pc_name = "LOCK_MSG", |
49d99608 CL |
599 | }, |
600 | [NLMPROC_CANCEL_MSG] = { | |
601 | .pc_func = nlm4svc_proc_cancel_msg, | |
602 | .pc_decode = nlm4svc_decode_cancargs, | |
603 | .pc_encode = nlm4svc_encode_void, | |
604 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 605 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
606 | .pc_ressize = sizeof(struct nlm_void), |
607 | .pc_xdrressize = St, | |
2289e87b | 608 | .pc_name = "CANCEL_MSG", |
49d99608 CL |
609 | }, |
610 | [NLMPROC_UNLOCK_MSG] = { | |
611 | .pc_func = nlm4svc_proc_unlock_msg, | |
612 | .pc_decode = nlm4svc_decode_unlockargs, | |
613 | .pc_encode = nlm4svc_encode_void, | |
614 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 615 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
616 | .pc_ressize = sizeof(struct nlm_void), |
617 | .pc_xdrressize = St, | |
2289e87b | 618 | .pc_name = "UNLOCK_MSG", |
49d99608 CL |
619 | }, |
620 | [NLMPROC_GRANTED_MSG] = { | |
621 | .pc_func = nlm4svc_proc_granted_msg, | |
622 | .pc_decode = nlm4svc_decode_testargs, | |
623 | .pc_encode = nlm4svc_encode_void, | |
624 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 625 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
626 | .pc_ressize = sizeof(struct nlm_void), |
627 | .pc_xdrressize = St, | |
2289e87b | 628 | .pc_name = "GRANTED_MSG", |
49d99608 CL |
629 | }, |
630 | [NLMPROC_TEST_RES] = { | |
631 | .pc_func = nlm4svc_proc_null, | |
632 | .pc_decode = nlm4svc_decode_void, | |
633 | .pc_encode = nlm4svc_encode_void, | |
634 | .pc_argsize = sizeof(struct nlm_res), | |
103cc1fa | 635 | .pc_argzero = sizeof(struct nlm_res), |
49d99608 CL |
636 | .pc_ressize = sizeof(struct nlm_void), |
637 | .pc_xdrressize = St, | |
2289e87b | 638 | .pc_name = "TEST_RES", |
49d99608 CL |
639 | }, |
640 | [NLMPROC_LOCK_RES] = { | |
641 | .pc_func = nlm4svc_proc_null, | |
642 | .pc_decode = nlm4svc_decode_void, | |
643 | .pc_encode = nlm4svc_encode_void, | |
644 | .pc_argsize = sizeof(struct nlm_res), | |
103cc1fa | 645 | .pc_argzero = sizeof(struct nlm_res), |
49d99608 CL |
646 | .pc_ressize = sizeof(struct nlm_void), |
647 | .pc_xdrressize = St, | |
2289e87b | 648 | .pc_name = "LOCK_RES", |
49d99608 CL |
649 | }, |
650 | [NLMPROC_CANCEL_RES] = { | |
651 | .pc_func = nlm4svc_proc_null, | |
652 | .pc_decode = nlm4svc_decode_void, | |
653 | .pc_encode = nlm4svc_encode_void, | |
654 | .pc_argsize = sizeof(struct nlm_res), | |
103cc1fa | 655 | .pc_argzero = sizeof(struct nlm_res), |
49d99608 CL |
656 | .pc_ressize = sizeof(struct nlm_void), |
657 | .pc_xdrressize = St, | |
2289e87b | 658 | .pc_name = "CANCEL_RES", |
49d99608 CL |
659 | }, |
660 | [NLMPROC_UNLOCK_RES] = { | |
661 | .pc_func = nlm4svc_proc_null, | |
662 | .pc_decode = nlm4svc_decode_void, | |
663 | .pc_encode = nlm4svc_encode_void, | |
664 | .pc_argsize = sizeof(struct nlm_res), | |
103cc1fa | 665 | .pc_argzero = sizeof(struct nlm_res), |
49d99608 CL |
666 | .pc_ressize = sizeof(struct nlm_void), |
667 | .pc_xdrressize = St, | |
2289e87b | 668 | .pc_name = "UNLOCK_RES", |
49d99608 CL |
669 | }, |
670 | [NLMPROC_GRANTED_RES] = { | |
671 | .pc_func = nlm4svc_proc_granted_res, | |
672 | .pc_decode = nlm4svc_decode_res, | |
673 | .pc_encode = nlm4svc_encode_void, | |
674 | .pc_argsize = sizeof(struct nlm_res), | |
103cc1fa | 675 | .pc_argzero = sizeof(struct nlm_res), |
49d99608 CL |
676 | .pc_ressize = sizeof(struct nlm_void), |
677 | .pc_xdrressize = St, | |
2289e87b | 678 | .pc_name = "GRANTED_RES", |
49d99608 CL |
679 | }, |
680 | [NLMPROC_NSM_NOTIFY] = { | |
681 | .pc_func = nlm4svc_proc_sm_notify, | |
682 | .pc_decode = nlm4svc_decode_reboot, | |
683 | .pc_encode = nlm4svc_encode_void, | |
684 | .pc_argsize = sizeof(struct nlm_reboot), | |
103cc1fa | 685 | .pc_argzero = sizeof(struct nlm_reboot), |
49d99608 CL |
686 | .pc_ressize = sizeof(struct nlm_void), |
687 | .pc_xdrressize = St, | |
2289e87b | 688 | .pc_name = "SM_NOTIFY", |
49d99608 CL |
689 | }, |
690 | [17] = { | |
691 | .pc_func = nlm4svc_proc_unused, | |
692 | .pc_decode = nlm4svc_decode_void, | |
693 | .pc_encode = nlm4svc_encode_void, | |
694 | .pc_argsize = sizeof(struct nlm_void), | |
103cc1fa | 695 | .pc_argzero = sizeof(struct nlm_void), |
49d99608 CL |
696 | .pc_ressize = sizeof(struct nlm_void), |
697 | .pc_xdrressize = 0, | |
2289e87b | 698 | .pc_name = "UNUSED", |
49d99608 CL |
699 | }, |
700 | [18] = { | |
701 | .pc_func = nlm4svc_proc_unused, | |
702 | .pc_decode = nlm4svc_decode_void, | |
703 | .pc_encode = nlm4svc_encode_void, | |
704 | .pc_argsize = sizeof(struct nlm_void), | |
103cc1fa | 705 | .pc_argzero = sizeof(struct nlm_void), |
49d99608 CL |
706 | .pc_ressize = sizeof(struct nlm_void), |
707 | .pc_xdrressize = 0, | |
2289e87b | 708 | .pc_name = "UNUSED", |
49d99608 CL |
709 | }, |
710 | [19] = { | |
711 | .pc_func = nlm4svc_proc_unused, | |
712 | .pc_decode = nlm4svc_decode_void, | |
713 | .pc_encode = nlm4svc_encode_void, | |
714 | .pc_argsize = sizeof(struct nlm_void), | |
103cc1fa | 715 | .pc_argzero = sizeof(struct nlm_void), |
49d99608 CL |
716 | .pc_ressize = sizeof(struct nlm_void), |
717 | .pc_xdrressize = 0, | |
2289e87b | 718 | .pc_name = "UNUSED", |
49d99608 CL |
719 | }, |
720 | [NLMPROC_SHARE] = { | |
721 | .pc_func = nlm4svc_proc_share, | |
722 | .pc_decode = nlm4svc_decode_shareargs, | |
723 | .pc_encode = nlm4svc_encode_shareres, | |
724 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 725 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
726 | .pc_ressize = sizeof(struct nlm_res), |
727 | .pc_xdrressize = Ck+St+1, | |
2289e87b | 728 | .pc_name = "SHARE", |
49d99608 CL |
729 | }, |
730 | [NLMPROC_UNSHARE] = { | |
731 | .pc_func = nlm4svc_proc_unshare, | |
732 | .pc_decode = nlm4svc_decode_shareargs, | |
733 | .pc_encode = nlm4svc_encode_shareres, | |
734 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 735 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
736 | .pc_ressize = sizeof(struct nlm_res), |
737 | .pc_xdrressize = Ck+St+1, | |
2289e87b | 738 | .pc_name = "UNSHARE", |
49d99608 CL |
739 | }, |
740 | [NLMPROC_NM_LOCK] = { | |
741 | .pc_func = nlm4svc_proc_nm_lock, | |
742 | .pc_decode = nlm4svc_decode_lockargs, | |
743 | .pc_encode = nlm4svc_encode_res, | |
744 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 745 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
746 | .pc_ressize = sizeof(struct nlm_res), |
747 | .pc_xdrressize = Ck+St, | |
2289e87b | 748 | .pc_name = "NM_LOCK", |
49d99608 CL |
749 | }, |
750 | [NLMPROC_FREE_ALL] = { | |
751 | .pc_func = nlm4svc_proc_free_all, | |
752 | .pc_decode = nlm4svc_decode_notify, | |
753 | .pc_encode = nlm4svc_encode_void, | |
754 | .pc_argsize = sizeof(struct nlm_args), | |
103cc1fa | 755 | .pc_argzero = sizeof(struct nlm_args), |
49d99608 CL |
756 | .pc_ressize = sizeof(struct nlm_void), |
757 | .pc_xdrressize = St, | |
2289e87b | 758 | .pc_name = "FREE_ALL", |
49d99608 | 759 | }, |
1da177e4 | 760 | }; |