Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
19207231 | 3 | * In-kernel MOUNT protocol client |
1da177e4 LT |
4 | * |
5 | * Copyright (C) 1997, Olaf Kirch <okir@monad.swb.de> | |
6 | */ | |
7 | ||
8 | #include <linux/types.h> | |
9 | #include <linux/socket.h> | |
10 | #include <linux/kernel.h> | |
11 | #include <linux/errno.h> | |
12 | #include <linux/uio.h> | |
13 | #include <linux/net.h> | |
14 | #include <linux/in.h> | |
15 | #include <linux/sunrpc/clnt.h> | |
1da177e4 LT |
16 | #include <linux/sunrpc/sched.h> |
17 | #include <linux/nfs_fs.h> | |
8491945f | 18 | #include "internal.h" |
1da177e4 | 19 | |
39de493e | 20 | #define NFSDBG_FACILITY NFSDBG_MOUNT |
1da177e4 | 21 | |
29a1bd6b CL |
22 | /* |
23 | * Defined by RFC 1094, section A.3; and RFC 1813, section 5.1.4 | |
24 | */ | |
25 | #define MNTPATHLEN (1024) | |
26 | ||
27 | /* | |
28 | * XDR data type sizes | |
29 | */ | |
30 | #define encode_dirpath_sz (1 + XDR_QUADLEN(MNTPATHLEN)) | |
fb125295 CL |
31 | #define MNT_status_sz (1) |
32 | #define MNT_fhs_status_sz (1) | |
4fdcd996 CL |
33 | #define MNT_fhandle_sz XDR_QUADLEN(NFS2_FHSIZE) |
34 | #define MNT_fhandle3_sz (1 + XDR_QUADLEN(NFS3_FHSIZE)) | |
a14017db | 35 | #define MNT_authflav3_sz (1 + NFS_MAX_SECFLAVORS) |
29a1bd6b CL |
36 | |
37 | /* | |
38 | * XDR argument and result sizes | |
39 | */ | |
40 | #define MNT_enc_dirpath_sz encode_dirpath_sz | |
8e02f6b9 CL |
41 | #define MNT_dec_mountres_sz (MNT_status_sz + MNT_fhandle_sz) |
42 | #define MNT_dec_mountres3_sz (MNT_status_sz + MNT_fhandle_sz + \ | |
43 | MNT_authflav3_sz) | |
29a1bd6b | 44 | |
2ad78097 CL |
45 | /* |
46 | * Defined by RFC 1094, section A.5 | |
47 | */ | |
48 | enum { | |
49 | MOUNTPROC_NULL = 0, | |
50 | MOUNTPROC_MNT = 1, | |
51 | MOUNTPROC_DUMP = 2, | |
52 | MOUNTPROC_UMNT = 3, | |
53 | MOUNTPROC_UMNTALL = 4, | |
54 | MOUNTPROC_EXPORT = 5, | |
55 | }; | |
56 | ||
57 | /* | |
58 | * Defined by RFC 1813, section 5.2 | |
59 | */ | |
60 | enum { | |
61 | MOUNTPROC3_NULL = 0, | |
62 | MOUNTPROC3_MNT = 1, | |
63 | MOUNTPROC3_DUMP = 2, | |
64 | MOUNTPROC3_UMNT = 3, | |
65 | MOUNTPROC3_UMNTALL = 4, | |
66 | MOUNTPROC3_EXPORT = 5, | |
67 | }; | |
68 | ||
a613fa16 | 69 | static const struct rpc_program mnt_program; |
1da177e4 | 70 | |
fb125295 CL |
71 | /* |
72 | * Defined by OpenGroup XNFS Version 3W, chapter 8 | |
73 | */ | |
74 | enum mountstat { | |
75 | MNT_OK = 0, | |
76 | MNT_EPERM = 1, | |
77 | MNT_ENOENT = 2, | |
78 | MNT_EACCES = 13, | |
79 | MNT_EINVAL = 22, | |
80 | }; | |
81 | ||
82 | static struct { | |
83 | u32 status; | |
84 | int errno; | |
85 | } mnt_errtbl[] = { | |
86 | { .status = MNT_OK, .errno = 0, }, | |
87 | { .status = MNT_EPERM, .errno = -EPERM, }, | |
88 | { .status = MNT_ENOENT, .errno = -ENOENT, }, | |
89 | { .status = MNT_EACCES, .errno = -EACCES, }, | |
90 | { .status = MNT_EINVAL, .errno = -EINVAL, }, | |
91 | }; | |
92 | ||
93 | /* | |
94 | * Defined by RFC 1813, section 5.1.5 | |
95 | */ | |
96 | enum mountstat3 { | |
97 | MNT3_OK = 0, /* no error */ | |
98 | MNT3ERR_PERM = 1, /* Not owner */ | |
99 | MNT3ERR_NOENT = 2, /* No such file or directory */ | |
100 | MNT3ERR_IO = 5, /* I/O error */ | |
101 | MNT3ERR_ACCES = 13, /* Permission denied */ | |
102 | MNT3ERR_NOTDIR = 20, /* Not a directory */ | |
103 | MNT3ERR_INVAL = 22, /* Invalid argument */ | |
104 | MNT3ERR_NAMETOOLONG = 63, /* Filename too long */ | |
105 | MNT3ERR_NOTSUPP = 10004, /* Operation not supported */ | |
106 | MNT3ERR_SERVERFAULT = 10006, /* A failure on the server */ | |
107 | }; | |
108 | ||
109 | static struct { | |
110 | u32 status; | |
111 | int errno; | |
112 | } mnt3_errtbl[] = { | |
113 | { .status = MNT3_OK, .errno = 0, }, | |
114 | { .status = MNT3ERR_PERM, .errno = -EPERM, }, | |
115 | { .status = MNT3ERR_NOENT, .errno = -ENOENT, }, | |
116 | { .status = MNT3ERR_IO, .errno = -EIO, }, | |
117 | { .status = MNT3ERR_ACCES, .errno = -EACCES, }, | |
118 | { .status = MNT3ERR_NOTDIR, .errno = -ENOTDIR, }, | |
119 | { .status = MNT3ERR_INVAL, .errno = -EINVAL, }, | |
120 | { .status = MNT3ERR_NAMETOOLONG, .errno = -ENAMETOOLONG, }, | |
121 | { .status = MNT3ERR_NOTSUPP, .errno = -ENOTSUPP, }, | |
fdcb4577 | 122 | { .status = MNT3ERR_SERVERFAULT, .errno = -EREMOTEIO, }, |
fb125295 CL |
123 | }; |
124 | ||
125 | struct mountres { | |
126 | int errno; | |
127 | struct nfs_fh *fh; | |
a14017db CL |
128 | unsigned int *auth_count; |
129 | rpc_authflavor_t *auth_flavors; | |
fb125295 CL |
130 | }; |
131 | ||
1da177e4 | 132 | struct mnt_fhstatus { |
19207231 CL |
133 | u32 status; |
134 | struct nfs_fh *fh; | |
1da177e4 LT |
135 | }; |
136 | ||
3ea97309 CL |
137 | /** |
138 | * nfs_mount - Obtain an NFS file handle for the given host and path | |
c5d120f8 | 139 | * @info: pointer to mount request arguments |
3ea97309 | 140 | * |
fb9b02fd JL |
141 | * Uses default timeout parameters specified by underlying transport. On |
142 | * successful return, the auth_flavs list and auth_flav_len will be populated | |
143 | * with the list from the server or a faked-up list if the server didn't | |
144 | * provide one. | |
1da177e4 | 145 | */ |
c5d120f8 | 146 | int nfs_mount(struct nfs_mount_request *info) |
1da177e4 | 147 | { |
8e02f6b9 CL |
148 | struct mountres result = { |
149 | .fh = info->fh, | |
150 | .auth_count = info->auth_flav_len, | |
151 | .auth_flavors = info->auth_flavs, | |
1da177e4 | 152 | }; |
dead28da | 153 | struct rpc_message msg = { |
c5d120f8 | 154 | .rpc_argp = info->dirpath, |
dead28da CL |
155 | .rpc_resp = &result, |
156 | }; | |
3ea97309 | 157 | struct rpc_create_args args = { |
6d59b8d5 | 158 | .net = info->net, |
c5d120f8 CL |
159 | .protocol = info->protocol, |
160 | .address = info->sap, | |
161 | .addrsize = info->salen, | |
162 | .servername = info->hostname, | |
3ea97309 | 163 | .program = &mnt_program, |
c5d120f8 | 164 | .version = info->version, |
3ea97309 | 165 | .authflavor = RPC_AUTH_UNIX, |
3ea97309 CL |
166 | }; |
167 | struct rpc_clnt *mnt_clnt; | |
1da177e4 | 168 | int status; |
1da177e4 | 169 | |
3ea97309 | 170 | dprintk("NFS: sending MNT request for %s:%s\n", |
c5d120f8 CL |
171 | (info->hostname ? info->hostname : "server"), |
172 | info->dirpath); | |
1da177e4 | 173 | |
28d79ea3 TM |
174 | if (strlen(info->dirpath) > MNTPATHLEN) |
175 | return -ENAMETOOLONG; | |
176 | ||
50a737f8 CL |
177 | if (info->noresvport) |
178 | args.flags |= RPC_CLNT_CREATE_NONPRIVPORT; | |
179 | ||
3ea97309 | 180 | mnt_clnt = rpc_create(&args); |
1da177e4 | 181 | if (IS_ERR(mnt_clnt)) |
013a8c1a | 182 | goto out_clnt_err; |
1da177e4 | 183 | |
c5d120f8 | 184 | if (info->version == NFS_MNT3_VERSION) |
dead28da CL |
185 | msg.rpc_proc = &mnt_clnt->cl_procinfo[MOUNTPROC3_MNT]; |
186 | else | |
2ad78097 | 187 | msg.rpc_proc = &mnt_clnt->cl_procinfo[MOUNTPROC_MNT]; |
dead28da | 188 | |
acce94e6 | 189 | status = rpc_call_sync(mnt_clnt, &msg, RPC_TASK_SOFT|RPC_TASK_TIMEOUT); |
90c5755f | 190 | rpc_shutdown_client(mnt_clnt); |
013a8c1a CL |
191 | |
192 | if (status < 0) | |
193 | goto out_call_err; | |
8e02f6b9 | 194 | if (result.errno != 0) |
013a8c1a CL |
195 | goto out_mnt_err; |
196 | ||
197 | dprintk("NFS: MNT request succeeded\n"); | |
198 | status = 0; | |
199 | ||
fb9b02fd JL |
200 | /* |
201 | * If the server didn't provide a flavor list, allow the | |
202 | * client to try any flavor. | |
203 | */ | |
204 | if (info->version != NFS_MNT3_VERSION || *info->auth_flav_len == 0) { | |
205 | dprintk("NFS: Faking up auth_flavs list\n"); | |
206 | info->auth_flavs[0] = RPC_AUTH_NULL; | |
207 | *info->auth_flav_len = 1; | |
208 | } | |
013a8c1a CL |
209 | out: |
210 | return status; | |
211 | ||
212 | out_clnt_err: | |
213 | status = PTR_ERR(mnt_clnt); | |
8e02f6b9 | 214 | dprintk("NFS: failed to create MNT RPC client, status=%d\n", status); |
013a8c1a CL |
215 | goto out; |
216 | ||
217 | out_call_err: | |
8e02f6b9 | 218 | dprintk("NFS: MNT request failed, status=%d\n", status); |
013a8c1a CL |
219 | goto out; |
220 | ||
221 | out_mnt_err: | |
8e02f6b9 CL |
222 | dprintk("NFS: MNT server returned result %d\n", result.errno); |
223 | status = result.errno; | |
013a8c1a | 224 | goto out; |
1da177e4 LT |
225 | } |
226 | ||
0b524123 CL |
227 | /** |
228 | * nfs_umount - Notify a server that we have unmounted this export | |
229 | * @info: pointer to umount request arguments | |
230 | * | |
231 | * MOUNTPROC_UMNT is advisory, so we set a short timeout, and always | |
232 | * use UDP. | |
233 | */ | |
234 | void nfs_umount(const struct nfs_mount_request *info) | |
235 | { | |
236 | static const struct rpc_timeout nfs_umnt_timeout = { | |
237 | .to_initval = 1 * HZ, | |
238 | .to_maxval = 3 * HZ, | |
239 | .to_retries = 2, | |
240 | }; | |
241 | struct rpc_create_args args = { | |
6d59b8d5 | 242 | .net = info->net, |
0b524123 CL |
243 | .protocol = IPPROTO_UDP, |
244 | .address = info->sap, | |
245 | .addrsize = info->salen, | |
246 | .timeout = &nfs_umnt_timeout, | |
247 | .servername = info->hostname, | |
248 | .program = &mnt_program, | |
249 | .version = info->version, | |
250 | .authflavor = RPC_AUTH_UNIX, | |
251 | .flags = RPC_CLNT_CREATE_NOPING, | |
252 | }; | |
0b524123 CL |
253 | struct rpc_message msg = { |
254 | .rpc_argp = info->dirpath, | |
0b524123 CL |
255 | }; |
256 | struct rpc_clnt *clnt; | |
257 | int status; | |
258 | ||
28d79ea3 TM |
259 | if (strlen(info->dirpath) > MNTPATHLEN) |
260 | return; | |
261 | ||
0b524123 CL |
262 | if (info->noresvport) |
263 | args.flags |= RPC_CLNT_CREATE_NONPRIVPORT; | |
264 | ||
265 | clnt = rpc_create(&args); | |
c8b031eb | 266 | if (IS_ERR(clnt)) |
0b524123 CL |
267 | goto out_clnt_err; |
268 | ||
269 | dprintk("NFS: sending UMNT request for %s:%s\n", | |
270 | (info->hostname ? info->hostname : "server"), info->dirpath); | |
271 | ||
272 | if (info->version == NFS_MNT3_VERSION) | |
273 | msg.rpc_proc = &clnt->cl_procinfo[MOUNTPROC3_UMNT]; | |
274 | else | |
275 | msg.rpc_proc = &clnt->cl_procinfo[MOUNTPROC_UMNT]; | |
276 | ||
277 | status = rpc_call_sync(clnt, &msg, 0); | |
278 | rpc_shutdown_client(clnt); | |
279 | ||
280 | if (unlikely(status < 0)) | |
281 | goto out_call_err; | |
282 | ||
283 | return; | |
284 | ||
285 | out_clnt_err: | |
286 | dprintk("NFS: failed to create UMNT RPC client, status=%ld\n", | |
287 | PTR_ERR(clnt)); | |
288 | return; | |
289 | ||
290 | out_call_err: | |
291 | dprintk("NFS: UMNT request failed, status=%d\n", status); | |
292 | } | |
293 | ||
1da177e4 LT |
294 | /* |
295 | * XDR encode/decode functions for MOUNT | |
296 | */ | |
1da177e4 | 297 | |
98eb2b4f | 298 | static void encode_mntdirpath(struct xdr_stream *xdr, const char *pathname) |
29a1bd6b CL |
299 | { |
300 | const u32 pathname_len = strlen(pathname); | |
301 | __be32 *p; | |
302 | ||
98eb2b4f | 303 | p = xdr_reserve_space(xdr, 4 + pathname_len); |
29a1bd6b | 304 | xdr_encode_opaque(p, pathname, pathname_len); |
29a1bd6b CL |
305 | } |
306 | ||
9f06c719 | 307 | static void mnt_xdr_enc_dirpath(struct rpc_rqst *req, struct xdr_stream *xdr, |
fcc85819 | 308 | const void *dirpath) |
29a1bd6b | 309 | { |
9f06c719 | 310 | encode_mntdirpath(xdr, dirpath); |
29a1bd6b CL |
311 | } |
312 | ||
fb125295 CL |
313 | /* |
314 | * RFC 1094: "A non-zero status indicates some sort of error. In this | |
315 | * case, the status is a UNIX error number." This can be problematic | |
316 | * if the server and client use different errno values for the same | |
317 | * error. | |
318 | * | |
319 | * However, the OpenGroup XNFS spec provides a simple mapping that is | |
320 | * independent of local errno values on the server and the client. | |
321 | */ | |
322 | static int decode_status(struct xdr_stream *xdr, struct mountres *res) | |
323 | { | |
324 | unsigned int i; | |
325 | u32 status; | |
326 | __be32 *p; | |
327 | ||
98eb2b4f | 328 | p = xdr_inline_decode(xdr, 4); |
fb125295 CL |
329 | if (unlikely(p == NULL)) |
330 | return -EIO; | |
98eb2b4f | 331 | status = be32_to_cpup(p); |
fb125295 | 332 | |
dd8ac1da | 333 | for (i = 0; i < ARRAY_SIZE(mnt_errtbl); i++) { |
fb125295 CL |
334 | if (mnt_errtbl[i].status == status) { |
335 | res->errno = mnt_errtbl[i].errno; | |
336 | return 0; | |
337 | } | |
338 | } | |
339 | ||
340 | dprintk("NFS: unrecognized MNT status code: %u\n", status); | |
341 | res->errno = -EACCES; | |
342 | return 0; | |
343 | } | |
344 | ||
4fdcd996 CL |
345 | static int decode_fhandle(struct xdr_stream *xdr, struct mountres *res) |
346 | { | |
347 | struct nfs_fh *fh = res->fh; | |
348 | __be32 *p; | |
349 | ||
350 | p = xdr_inline_decode(xdr, NFS2_FHSIZE); | |
351 | if (unlikely(p == NULL)) | |
352 | return -EIO; | |
353 | ||
354 | fh->size = NFS2_FHSIZE; | |
355 | memcpy(fh->data, p, NFS2_FHSIZE); | |
356 | return 0; | |
357 | } | |
358 | ||
bf269551 CL |
359 | static int mnt_xdr_dec_mountres(struct rpc_rqst *req, |
360 | struct xdr_stream *xdr, | |
fc016483 | 361 | void *data) |
8e02f6b9 | 362 | { |
fc016483 | 363 | struct mountres *res = data; |
8e02f6b9 CL |
364 | int status; |
365 | ||
bf269551 | 366 | status = decode_status(xdr, res); |
8e02f6b9 CL |
367 | if (unlikely(status != 0 || res->errno != 0)) |
368 | return status; | |
bf269551 | 369 | return decode_fhandle(xdr, res); |
8e02f6b9 CL |
370 | } |
371 | ||
fb125295 CL |
372 | static int decode_fhs_status(struct xdr_stream *xdr, struct mountres *res) |
373 | { | |
374 | unsigned int i; | |
375 | u32 status; | |
376 | __be32 *p; | |
377 | ||
98eb2b4f | 378 | p = xdr_inline_decode(xdr, 4); |
fb125295 CL |
379 | if (unlikely(p == NULL)) |
380 | return -EIO; | |
98eb2b4f | 381 | status = be32_to_cpup(p); |
fb125295 | 382 | |
dd8ac1da | 383 | for (i = 0; i < ARRAY_SIZE(mnt3_errtbl); i++) { |
fb125295 CL |
384 | if (mnt3_errtbl[i].status == status) { |
385 | res->errno = mnt3_errtbl[i].errno; | |
386 | return 0; | |
387 | } | |
388 | } | |
389 | ||
390 | dprintk("NFS: unrecognized MNT3 status code: %u\n", status); | |
391 | res->errno = -EACCES; | |
392 | return 0; | |
393 | } | |
394 | ||
4fdcd996 CL |
395 | static int decode_fhandle3(struct xdr_stream *xdr, struct mountres *res) |
396 | { | |
397 | struct nfs_fh *fh = res->fh; | |
398 | u32 size; | |
399 | __be32 *p; | |
400 | ||
98eb2b4f | 401 | p = xdr_inline_decode(xdr, 4); |
4fdcd996 CL |
402 | if (unlikely(p == NULL)) |
403 | return -EIO; | |
404 | ||
98eb2b4f | 405 | size = be32_to_cpup(p); |
4fdcd996 CL |
406 | if (size > NFS3_FHSIZE || size == 0) |
407 | return -EIO; | |
408 | ||
409 | p = xdr_inline_decode(xdr, size); | |
410 | if (unlikely(p == NULL)) | |
411 | return -EIO; | |
412 | ||
413 | fh->size = size; | |
414 | memcpy(fh->data, p, size); | |
415 | return 0; | |
416 | } | |
417 | ||
a14017db CL |
418 | static int decode_auth_flavors(struct xdr_stream *xdr, struct mountres *res) |
419 | { | |
420 | rpc_authflavor_t *flavors = res->auth_flavors; | |
421 | unsigned int *count = res->auth_count; | |
422 | u32 entries, i; | |
423 | __be32 *p; | |
424 | ||
425 | if (*count == 0) | |
426 | return 0; | |
427 | ||
98eb2b4f | 428 | p = xdr_inline_decode(xdr, 4); |
a14017db CL |
429 | if (unlikely(p == NULL)) |
430 | return -EIO; | |
98eb2b4f | 431 | entries = be32_to_cpup(p); |
a14017db CL |
432 | dprintk("NFS: received %u auth flavors\n", entries); |
433 | if (entries > NFS_MAX_SECFLAVORS) | |
434 | entries = NFS_MAX_SECFLAVORS; | |
435 | ||
98eb2b4f | 436 | p = xdr_inline_decode(xdr, 4 * entries); |
a14017db CL |
437 | if (unlikely(p == NULL)) |
438 | return -EIO; | |
439 | ||
440 | if (entries > *count) | |
441 | entries = *count; | |
442 | ||
443 | for (i = 0; i < entries; i++) { | |
98eb2b4f | 444 | flavors[i] = be32_to_cpup(p++); |
ed58b291 | 445 | dprintk("NFS: auth flavor[%u]: %d\n", i, flavors[i]); |
a14017db CL |
446 | } |
447 | *count = i; | |
448 | ||
449 | return 0; | |
450 | } | |
451 | ||
bf269551 CL |
452 | static int mnt_xdr_dec_mountres3(struct rpc_rqst *req, |
453 | struct xdr_stream *xdr, | |
fc016483 | 454 | void *data) |
8e02f6b9 | 455 | { |
fc016483 | 456 | struct mountres *res = data; |
8e02f6b9 CL |
457 | int status; |
458 | ||
bf269551 | 459 | status = decode_fhs_status(xdr, res); |
8e02f6b9 CL |
460 | if (unlikely(status != 0 || res->errno != 0)) |
461 | return status; | |
bf269551 | 462 | status = decode_fhandle3(xdr, res); |
8e02f6b9 CL |
463 | if (unlikely(status != 0)) { |
464 | res->errno = -EBADHANDLE; | |
465 | return 0; | |
466 | } | |
bf269551 | 467 | return decode_auth_flavors(xdr, res); |
8e02f6b9 CL |
468 | } |
469 | ||
511e936b | 470 | static const struct rpc_procinfo mnt_procedures[] = { |
2ad78097 CL |
471 | [MOUNTPROC_MNT] = { |
472 | .p_proc = MOUNTPROC_MNT, | |
fcc85819 | 473 | .p_encode = mnt_xdr_enc_dirpath, |
fc016483 | 474 | .p_decode = mnt_xdr_dec_mountres, |
29a1bd6b | 475 | .p_arglen = MNT_enc_dirpath_sz, |
8e02f6b9 | 476 | .p_replen = MNT_dec_mountres_sz, |
2ad78097 | 477 | .p_statidx = MOUNTPROC_MNT, |
19207231 | 478 | .p_name = "MOUNT", |
1da177e4 | 479 | }, |
0b524123 CL |
480 | [MOUNTPROC_UMNT] = { |
481 | .p_proc = MOUNTPROC_UMNT, | |
fcc85819 | 482 | .p_encode = mnt_xdr_enc_dirpath, |
0b524123 CL |
483 | .p_arglen = MNT_enc_dirpath_sz, |
484 | .p_statidx = MOUNTPROC_UMNT, | |
485 | .p_name = "UMOUNT", | |
486 | }, | |
1da177e4 LT |
487 | }; |
488 | ||
511e936b | 489 | static const struct rpc_procinfo mnt3_procedures[] = { |
19207231 CL |
490 | [MOUNTPROC3_MNT] = { |
491 | .p_proc = MOUNTPROC3_MNT, | |
fcc85819 | 492 | .p_encode = mnt_xdr_enc_dirpath, |
fc016483 | 493 | .p_decode = mnt_xdr_dec_mountres3, |
29a1bd6b | 494 | .p_arglen = MNT_enc_dirpath_sz, |
8e02f6b9 | 495 | .p_replen = MNT_dec_mountres3_sz, |
19207231 CL |
496 | .p_statidx = MOUNTPROC3_MNT, |
497 | .p_name = "MOUNT", | |
1da177e4 | 498 | }, |
0b524123 CL |
499 | [MOUNTPROC3_UMNT] = { |
500 | .p_proc = MOUNTPROC3_UMNT, | |
fcc85819 | 501 | .p_encode = mnt_xdr_enc_dirpath, |
0b524123 CL |
502 | .p_arglen = MNT_enc_dirpath_sz, |
503 | .p_statidx = MOUNTPROC3_UMNT, | |
504 | .p_name = "UMOUNT", | |
505 | }, | |
1da177e4 LT |
506 | }; |
507 | ||
c551858a | 508 | static unsigned int mnt_counts[ARRAY_SIZE(mnt_procedures)]; |
a613fa16 | 509 | static const struct rpc_version mnt_version1 = { |
19207231 | 510 | .number = 1, |
5b362ac3 | 511 | .nrprocs = ARRAY_SIZE(mnt_procedures), |
19207231 | 512 | .procs = mnt_procedures, |
c551858a | 513 | .counts = mnt_counts, |
1da177e4 LT |
514 | }; |
515 | ||
ecc7b435 | 516 | static unsigned int mnt3_counts[ARRAY_SIZE(mnt3_procedures)]; |
a613fa16 | 517 | static const struct rpc_version mnt_version3 = { |
19207231 | 518 | .number = 3, |
5b362ac3 | 519 | .nrprocs = ARRAY_SIZE(mnt3_procedures), |
19207231 | 520 | .procs = mnt3_procedures, |
c551858a | 521 | .counts = mnt3_counts, |
1da177e4 LT |
522 | }; |
523 | ||
a613fa16 | 524 | static const struct rpc_version *mnt_version[] = { |
1da177e4 LT |
525 | NULL, |
526 | &mnt_version1, | |
527 | NULL, | |
528 | &mnt_version3, | |
529 | }; | |
530 | ||
19207231 | 531 | static struct rpc_stat mnt_stats; |
1da177e4 | 532 | |
a613fa16 | 533 | static const struct rpc_program mnt_program = { |
1da177e4 LT |
534 | .name = "mount", |
535 | .number = NFS_MNT_PROGRAM, | |
e8c96f8c | 536 | .nrvers = ARRAY_SIZE(mnt_version), |
1da177e4 LT |
537 | .version = mnt_version, |
538 | .stats = &mnt_stats, | |
539 | }; |