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Commit | Line | Data |
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46e18b3f GB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | ||
22 | /* | |
23 | * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. | |
24 | * Copyright (c) 2011 Gunnar Beutner | |
27ccd414 | 25 | * Copyright (c) 2012 Cyril Plisko. All rights reserved. |
c15d36c6 | 26 | * Copyright (c) 2019, 2020 by Delphix. All rights reserved. |
46e18b3f GB |
27 | */ |
28 | ||
c15d36c6 | 29 | #include <dirent.h> |
46e18b3f | 30 | #include <stdio.h> |
93ce2b4c | 31 | #include <string.h> |
46e18b3f | 32 | #include <strings.h> |
93ce2b4c | 33 | #include <errno.h> |
75bf636c | 34 | #include <fcntl.h> |
c15d36c6 GW |
35 | #include <sys/file.h> |
36 | #include <sys/stat.h> | |
37 | #include <sys/types.h> | |
46e18b3f GB |
38 | #include <sys/wait.h> |
39 | #include <unistd.h> | |
40 | #include <libzfs.h> | |
41 | #include <libshare.h> | |
42 | #include "libshare_impl.h" | |
60356b1a | 43 | #include "nfs.h" |
46e18b3f | 44 | |
c15d36c6 GW |
45 | #define ZFS_EXPORTS_DIR "/etc/exports.d" |
46 | #define ZFS_EXPORTS_FILE ZFS_EXPORTS_DIR"/zfs.exports" | |
47 | #define ZFS_EXPORTS_LOCK ZFS_EXPORTS_FILE".lock" | |
27ccd414 | 48 | |
46e18b3f | 49 | static sa_fstype_t *nfs_fstype; |
46e18b3f | 50 | |
c15d36c6 GW |
51 | typedef int (*nfs_shareopt_callback_t)(const char *opt, const char *value, |
52 | void *cookie); | |
53 | ||
54 | typedef int (*nfs_host_callback_t)(const char *sharepath, const char *filename, | |
55 | const char *host, const char *security, const char *access, void *cookie); | |
56 | ||
d1d7e268 | 57 | /* |
590338f6 GB |
58 | * Invokes the specified callback function for each Solaris share option |
59 | * listed in the specified string. | |
60 | */ | |
46e18b3f GB |
61 | static int |
62 | foreach_nfs_shareopt(const char *shareopts, | |
63 | nfs_shareopt_callback_t callback, void *cookie) | |
64 | { | |
65 | char *shareopts_dup, *opt, *cur, *value; | |
c15d36c6 | 66 | int was_nul, error; |
46e18b3f GB |
67 | |
68 | if (shareopts == NULL) | |
d1d7e268 | 69 | return (SA_OK); |
46e18b3f | 70 | |
c15d36c6 GW |
71 | if (strcmp(shareopts, "on") == 0) |
72 | shareopts = "rw,crossmnt"; | |
73 | ||
46e18b3f GB |
74 | shareopts_dup = strdup(shareopts); |
75 | ||
c15d36c6 | 76 | |
46e18b3f | 77 | if (shareopts_dup == NULL) |
d1d7e268 | 78 | return (SA_NO_MEMORY); |
46e18b3f GB |
79 | |
80 | opt = shareopts_dup; | |
81 | was_nul = 0; | |
82 | ||
83 | while (1) { | |
84 | cur = opt; | |
85 | ||
86 | while (*cur != ',' && *cur != '\0') | |
87 | cur++; | |
88 | ||
89 | if (*cur == '\0') | |
90 | was_nul = 1; | |
91 | ||
92 | *cur = '\0'; | |
93 | ||
94 | if (cur > opt) { | |
95 | value = strchr(opt, '='); | |
96 | ||
97 | if (value != NULL) { | |
98 | *value = '\0'; | |
99 | value++; | |
100 | } | |
101 | ||
c15d36c6 | 102 | error = callback(opt, value, cookie); |
46e18b3f | 103 | |
c15d36c6 | 104 | if (error != SA_OK) { |
46e18b3f | 105 | free(shareopts_dup); |
c15d36c6 | 106 | return (error); |
46e18b3f GB |
107 | } |
108 | } | |
109 | ||
110 | opt = cur + 1; | |
111 | ||
112 | if (was_nul) | |
113 | break; | |
114 | } | |
115 | ||
116 | free(shareopts_dup); | |
117 | ||
c15d36c6 | 118 | return (SA_OK); |
46e18b3f GB |
119 | } |
120 | ||
121 | typedef struct nfs_host_cookie_s { | |
122 | nfs_host_callback_t callback; | |
123 | const char *sharepath; | |
124 | void *cookie; | |
c15d36c6 | 125 | const char *filename; |
46e18b3f GB |
126 | const char *security; |
127 | } nfs_host_cookie_t; | |
128 | ||
d1d7e268 | 129 | /* |
590338f6 GB |
130 | * Helper function for foreach_nfs_host. This function checks whether the |
131 | * current share option is a host specification and invokes a callback | |
132 | * function with information about the host. | |
133 | */ | |
46e18b3f GB |
134 | static int |
135 | foreach_nfs_host_cb(const char *opt, const char *value, void *pcookie) | |
136 | { | |
c15d36c6 | 137 | int error; |
46e18b3f GB |
138 | const char *access; |
139 | char *host_dup, *host, *next; | |
140 | nfs_host_cookie_t *udata = (nfs_host_cookie_t *)pcookie; | |
141 | ||
142 | #ifdef DEBUG | |
143 | fprintf(stderr, "foreach_nfs_host_cb: key=%s, value=%s\n", opt, value); | |
144 | #endif | |
145 | ||
146 | if (strcmp(opt, "sec") == 0) | |
147 | udata->security = value; | |
148 | ||
149 | if (strcmp(opt, "rw") == 0 || strcmp(opt, "ro") == 0) { | |
150 | if (value == NULL) | |
151 | value = "*"; | |
152 | ||
153 | access = opt; | |
154 | ||
155 | host_dup = strdup(value); | |
156 | ||
157 | if (host_dup == NULL) | |
d1d7e268 | 158 | return (SA_NO_MEMORY); |
46e18b3f GB |
159 | |
160 | host = host_dup; | |
161 | ||
162 | do { | |
163 | next = strchr(host, ':'); | |
164 | if (next != NULL) { | |
165 | *next = '\0'; | |
166 | next++; | |
167 | } | |
168 | ||
c15d36c6 GW |
169 | error = udata->callback(udata->filename, |
170 | udata->sharepath, host, udata->security, | |
171 | access, udata->cookie); | |
46e18b3f | 172 | |
c15d36c6 | 173 | if (error != SA_OK) { |
46e18b3f GB |
174 | free(host_dup); |
175 | ||
c15d36c6 | 176 | return (error); |
46e18b3f GB |
177 | } |
178 | ||
179 | host = next; | |
180 | } while (host != NULL); | |
181 | ||
182 | free(host_dup); | |
183 | } | |
184 | ||
d1d7e268 | 185 | return (SA_OK); |
46e18b3f GB |
186 | } |
187 | ||
d1d7e268 | 188 | /* |
590338f6 GB |
189 | * Invokes a callback function for all NFS hosts that are set for a share. |
190 | */ | |
46e18b3f | 191 | static int |
c15d36c6 GW |
192 | foreach_nfs_host(sa_share_impl_t impl_share, char *filename, |
193 | nfs_host_callback_t callback, void *cookie) | |
46e18b3f GB |
194 | { |
195 | nfs_host_cookie_t udata; | |
196 | char *shareopts; | |
197 | ||
198 | udata.callback = callback; | |
c15d36c6 | 199 | udata.sharepath = impl_share->sa_mountpoint; |
46e18b3f | 200 | udata.cookie = cookie; |
c15d36c6 | 201 | udata.filename = filename; |
46e18b3f GB |
202 | udata.security = "sys"; |
203 | ||
204 | shareopts = FSINFO(impl_share, nfs_fstype)->shareopts; | |
205 | ||
c15d36c6 GW |
206 | return (foreach_nfs_shareopt(shareopts, foreach_nfs_host_cb, |
207 | &udata)); | |
46e18b3f GB |
208 | } |
209 | ||
d1d7e268 | 210 | /* |
590338f6 GB |
211 | * Converts a Solaris NFS host specification to its Linux equivalent. |
212 | */ | |
46e18b3f GB |
213 | static int |
214 | get_linux_hostspec(const char *solaris_hostspec, char **plinux_hostspec) | |
215 | { | |
216 | /* | |
217 | * For now we just support CIDR masks (e.g. @192.168.0.0/16) and host | |
218 | * wildcards (e.g. *.example.org). | |
219 | */ | |
220 | if (solaris_hostspec[0] == '@') { | |
221 | /* | |
222 | * Solaris host specifier, e.g. @192.168.0.0/16; we just need | |
223 | * to skip the @ in this case | |
224 | */ | |
225 | *plinux_hostspec = strdup(solaris_hostspec + 1); | |
226 | } else { | |
227 | *plinux_hostspec = strdup(solaris_hostspec); | |
228 | } | |
229 | ||
230 | if (*plinux_hostspec == NULL) { | |
d1d7e268 | 231 | return (SA_NO_MEMORY); |
46e18b3f GB |
232 | } |
233 | ||
d1d7e268 | 234 | return (SA_OK); |
46e18b3f GB |
235 | } |
236 | ||
d1d7e268 | 237 | /* |
590338f6 GB |
238 | * Adds a Linux share option to an array of NFS options. |
239 | */ | |
46e18b3f GB |
240 | static int |
241 | add_linux_shareopt(char **plinux_opts, const char *key, const char *value) | |
242 | { | |
243 | size_t len = 0; | |
244 | char *new_linux_opts; | |
245 | ||
246 | if (*plinux_opts != NULL) | |
247 | len = strlen(*plinux_opts); | |
248 | ||
249 | new_linux_opts = realloc(*plinux_opts, len + 1 + strlen(key) + | |
250 | (value ? 1 + strlen(value) : 0) + 1); | |
251 | ||
252 | if (new_linux_opts == NULL) | |
d1d7e268 | 253 | return (SA_NO_MEMORY); |
46e18b3f GB |
254 | |
255 | new_linux_opts[len] = '\0'; | |
256 | ||
257 | if (len > 0) | |
258 | strcat(new_linux_opts, ","); | |
259 | ||
260 | strcat(new_linux_opts, key); | |
261 | ||
262 | if (value != NULL) { | |
263 | strcat(new_linux_opts, "="); | |
264 | strcat(new_linux_opts, value); | |
265 | } | |
266 | ||
267 | *plinux_opts = new_linux_opts; | |
268 | ||
d1d7e268 | 269 | return (SA_OK); |
46e18b3f GB |
270 | } |
271 | ||
d1d7e268 | 272 | /* |
590338f6 GB |
273 | * Validates and converts a single Solaris share option to its Linux |
274 | * equivalent. | |
275 | */ | |
46e18b3f GB |
276 | static int |
277 | get_linux_shareopts_cb(const char *key, const char *value, void *cookie) | |
278 | { | |
279 | char **plinux_opts = (char **)cookie; | |
280 | ||
281 | /* host-specific options, these are taken care of elsewhere */ | |
282 | if (strcmp(key, "ro") == 0 || strcmp(key, "rw") == 0 || | |
283 | strcmp(key, "sec") == 0) | |
d1d7e268 | 284 | return (SA_OK); |
46e18b3f GB |
285 | |
286 | if (strcmp(key, "anon") == 0) | |
287 | key = "anonuid"; | |
288 | ||
d1d7e268 MK |
289 | if (strcmp(key, "root_mapping") == 0) { |
290 | (void) add_linux_shareopt(plinux_opts, "root_squash", NULL); | |
291 | key = "anonuid"; | |
292 | } | |
46e18b3f GB |
293 | |
294 | if (strcmp(key, "nosub") == 0) | |
295 | key = "subtree_check"; | |
296 | ||
297 | if (strcmp(key, "insecure") != 0 && strcmp(key, "secure") != 0 && | |
298 | strcmp(key, "async") != 0 && strcmp(key, "sync") != 0 && | |
299 | strcmp(key, "no_wdelay") != 0 && strcmp(key, "wdelay") != 0 && | |
300 | strcmp(key, "nohide") != 0 && strcmp(key, "hide") != 0 && | |
301 | strcmp(key, "crossmnt") != 0 && | |
302 | strcmp(key, "no_subtree_check") != 0 && | |
303 | strcmp(key, "subtree_check") != 0 && | |
304 | strcmp(key, "insecure_locks") != 0 && | |
305 | strcmp(key, "secure_locks") != 0 && | |
306 | strcmp(key, "no_auth_nlm") != 0 && strcmp(key, "auth_nlm") != 0 && | |
307 | strcmp(key, "no_acl") != 0 && strcmp(key, "mountpoint") != 0 && | |
308 | strcmp(key, "mp") != 0 && strcmp(key, "fsuid") != 0 && | |
309 | strcmp(key, "refer") != 0 && strcmp(key, "replicas") != 0 && | |
310 | strcmp(key, "root_squash") != 0 && | |
311 | strcmp(key, "no_root_squash") != 0 && | |
312 | strcmp(key, "all_squash") != 0 && | |
d2e032ca | 313 | strcmp(key, "no_all_squash") != 0 && strcmp(key, "fsid") != 0 && |
46e18b3f | 314 | strcmp(key, "anonuid") != 0 && strcmp(key, "anongid") != 0) { |
d1d7e268 | 315 | return (SA_SYNTAX_ERR); |
46e18b3f GB |
316 | } |
317 | ||
318 | (void) add_linux_shareopt(plinux_opts, key, value); | |
319 | ||
d1d7e268 | 320 | return (SA_OK); |
46e18b3f GB |
321 | } |
322 | ||
d1d7e268 | 323 | /* |
590338f6 GB |
324 | * Takes a string containing Solaris share options (e.g. "sync,no_acl") and |
325 | * converts them to a NULL-terminated array of Linux NFS options. | |
326 | */ | |
46e18b3f GB |
327 | static int |
328 | get_linux_shareopts(const char *shareopts, char **plinux_opts) | |
329 | { | |
c15d36c6 | 330 | int error; |
46e18b3f GB |
331 | |
332 | assert(plinux_opts != NULL); | |
333 | ||
334 | *plinux_opts = NULL; | |
335 | ||
d2923072 | 336 | /* no_subtree_check - Default as of nfs-utils v1.1.0 */ |
46e18b3f | 337 | (void) add_linux_shareopt(plinux_opts, "no_subtree_check", NULL); |
d2923072 BB |
338 | |
339 | /* mountpoint - Restrict exports to ZFS mountpoints */ | |
46e18b3f GB |
340 | (void) add_linux_shareopt(plinux_opts, "mountpoint", NULL); |
341 | ||
c15d36c6 | 342 | error = foreach_nfs_shareopt(shareopts, get_linux_shareopts_cb, |
d1d7e268 | 343 | plinux_opts); |
46e18b3f | 344 | |
c15d36c6 | 345 | if (error != SA_OK) { |
46e18b3f GB |
346 | free(*plinux_opts); |
347 | *plinux_opts = NULL; | |
348 | } | |
349 | ||
c15d36c6 | 350 | return (error); |
46e18b3f GB |
351 | } |
352 | ||
d1d7e268 | 353 | /* |
c15d36c6 GW |
354 | * This function populates an entry into /etc/exports.d/zfs.exports. |
355 | * This file is consumed by the linux nfs server so that zfs shares are | |
356 | * automatically exported upon boot or whenever the nfs server restarts. | |
590338f6 | 357 | */ |
46e18b3f | 358 | static int |
c15d36c6 GW |
359 | nfs_add_entry(const char *filename, const char *sharepath, |
360 | const char *host, const char *security, const char *access_opts, | |
361 | void *pcookie) | |
46e18b3f | 362 | { |
c15d36c6 GW |
363 | int error; |
364 | char *linuxhost; | |
365 | const char *linux_opts = (const char *)pcookie; | |
46e18b3f | 366 | |
c15d36c6 GW |
367 | error = get_linux_hostspec(host, &linuxhost); |
368 | if (error != SA_OK) | |
369 | return (error); | |
46e18b3f | 370 | |
c15d36c6 GW |
371 | if (linux_opts == NULL) |
372 | linux_opts = ""; | |
46e18b3f | 373 | |
10b575d0 | 374 | FILE *fp = fopen(filename, "a+e"); |
c15d36c6 GW |
375 | if (fp == NULL) { |
376 | fprintf(stderr, "failed to open %s file: %s", filename, | |
377 | strerror(errno)); | |
46e18b3f | 378 | free(linuxhost); |
c15d36c6 | 379 | return (SA_SYSTEM_ERR); |
46e18b3f GB |
380 | } |
381 | ||
c15d36c6 GW |
382 | if (fprintf(fp, "%s %s(sec=%s,%s,%s)\n", sharepath, linuxhost, |
383 | security, access_opts, linux_opts) < 0) { | |
384 | fprintf(stderr, "failed to write to %s\n", filename); | |
385 | free(linuxhost); | |
386 | fclose(fp); | |
387 | return (SA_SYSTEM_ERR); | |
388 | } | |
46e18b3f GB |
389 | |
390 | free(linuxhost); | |
c15d36c6 GW |
391 | if (fclose(fp) != 0) { |
392 | fprintf(stderr, "Unable to close file %s: %s\n", | |
393 | filename, strerror(errno)); | |
d1d7e268 | 394 | return (SA_SYSTEM_ERR); |
c15d36c6 GW |
395 | } |
396 | return (SA_OK); | |
46e18b3f GB |
397 | } |
398 | ||
d1d7e268 | 399 | /* |
c15d36c6 GW |
400 | * This function copies all entries from the exports file to "filename", |
401 | * omitting any entries for the specified mountpoint. | |
590338f6 | 402 | */ |
327c9046 | 403 | int |
c15d36c6 | 404 | nfs_copy_entries(char *filename, const char *mountpoint) |
46e18b3f | 405 | { |
c15d36c6 GW |
406 | char *buf = NULL; |
407 | size_t buflen = 0; | |
408 | int error = SA_OK; | |
409 | ||
10b575d0 AZ |
410 | FILE *oldfp = fopen(ZFS_EXPORTS_FILE, "re"); |
411 | FILE *newfp = fopen(filename, "w+e"); | |
bd76bcb3 GW |
412 | if (newfp == NULL) { |
413 | fprintf(stderr, "failed to open %s file: %s", filename, | |
414 | strerror(errno)); | |
415 | fclose(oldfp); | |
416 | return (SA_SYSTEM_ERR); | |
417 | } | |
c15d36c6 | 418 | fputs(FILE_HEADER, newfp); |
c15d36c6 | 419 | |
bd76bcb3 GW |
420 | /* |
421 | * The ZFS_EXPORTS_FILE may not exist yet. If that's the | |
422 | * case then just write out the new file. | |
423 | */ | |
424 | if (oldfp != NULL) { | |
425 | while (getline(&buf, &buflen, oldfp) != -1) { | |
426 | char *space = NULL; | |
c15d36c6 | 427 | |
bd76bcb3 | 428 | if (buf[0] == '\n' || buf[0] == '#') |
c15d36c6 | 429 | continue; |
bd76bcb3 GW |
430 | |
431 | if ((space = strchr(buf, ' ')) != NULL) { | |
432 | int mountpoint_len = strlen(mountpoint); | |
433 | ||
434 | if (space - buf == mountpoint_len && | |
435 | strncmp(mountpoint, buf, | |
436 | mountpoint_len) == 0) { | |
437 | continue; | |
438 | } | |
c15d36c6 | 439 | } |
bd76bcb3 | 440 | fputs(buf, newfp); |
c15d36c6 | 441 | } |
c15d36c6 | 442 | |
bd76bcb3 GW |
443 | if (ferror(oldfp) != 0) { |
444 | error = ferror(oldfp); | |
445 | } | |
446 | if (fclose(oldfp) != 0) { | |
447 | fprintf(stderr, "Unable to close file %s: %s\n", | |
448 | filename, strerror(errno)); | |
449 | error = error != 0 ? error : SA_SYSTEM_ERR; | |
450 | } | |
c15d36c6 | 451 | } |
bd76bcb3 | 452 | |
c15d36c6 GW |
453 | if (error == 0 && ferror(newfp) != 0) { |
454 | error = ferror(newfp); | |
46e18b3f GB |
455 | } |
456 | ||
c15d36c6 GW |
457 | free(buf); |
458 | if (fclose(newfp) != 0) { | |
459 | fprintf(stderr, "Unable to close file %s: %s\n", | |
460 | filename, strerror(errno)); | |
461 | error = error != 0 ? error : SA_SYSTEM_ERR; | |
462 | } | |
c15d36c6 | 463 | return (error); |
46e18b3f GB |
464 | } |
465 | ||
d1d7e268 | 466 | /* |
c15d36c6 | 467 | * Enables NFS sharing for the specified share. |
590338f6 | 468 | */ |
46e18b3f | 469 | static int |
dc3a56d3 | 470 | nfs_enable_share_impl(sa_share_impl_t impl_share, char *filename) |
46e18b3f | 471 | { |
c15d36c6 | 472 | char *shareopts, *linux_opts; |
c15d36c6 | 473 | int error; |
46e18b3f | 474 | |
c15d36c6 GW |
475 | shareopts = FSINFO(impl_share, nfs_fstype)->shareopts; |
476 | error = get_linux_shareopts(shareopts, &linux_opts); | |
dc3a56d3 | 477 | if (error != SA_OK) |
c15d36c6 | 478 | return (error); |
c15d36c6 GW |
479 | |
480 | error = foreach_nfs_host(impl_share, filename, nfs_add_entry, | |
481 | linux_opts); | |
482 | free(linux_opts); | |
c15d36c6 | 483 | return (error); |
46e18b3f GB |
484 | } |
485 | ||
dc3a56d3 AZ |
486 | static int |
487 | nfs_enable_share(sa_share_impl_t impl_share) | |
488 | { | |
489 | return (nfs_toggle_share( | |
490 | ZFS_EXPORTS_LOCK, ZFS_EXPORTS_FILE, ZFS_EXPORTS_DIR, impl_share, | |
491 | nfs_enable_share_impl)); | |
492 | } | |
493 | ||
d1d7e268 | 494 | /* |
c15d36c6 | 495 | * Disables NFS sharing for the specified share. |
590338f6 | 496 | */ |
dc3a56d3 AZ |
497 | static int |
498 | nfs_disable_share_impl(sa_share_impl_t impl_share, char *filename) | |
499 | { | |
500 | return (SA_OK); | |
501 | } | |
502 | ||
c15d36c6 GW |
503 | static int |
504 | nfs_disable_share(sa_share_impl_t impl_share) | |
46e18b3f | 505 | { |
dc3a56d3 AZ |
506 | return (nfs_toggle_share( |
507 | ZFS_EXPORTS_LOCK, ZFS_EXPORTS_FILE, ZFS_EXPORTS_DIR, impl_share, | |
508 | nfs_disable_share_impl)); | |
c15d36c6 | 509 | } |
46e18b3f | 510 | |
c15d36c6 GW |
511 | static boolean_t |
512 | nfs_is_shared(sa_share_impl_t impl_share) | |
513 | { | |
514 | size_t buflen = 0; | |
515 | char *buf = NULL; | |
aed0e9f3 | 516 | |
10b575d0 | 517 | FILE *fp = fopen(ZFS_EXPORTS_FILE, "re"); |
c15d36c6 | 518 | if (fp == NULL) { |
d1d7e268 | 519 | return (B_FALSE); |
5333eb0b | 520 | } |
c15d36c6 GW |
521 | while ((getline(&buf, &buflen, fp)) != -1) { |
522 | char *space = NULL; | |
523 | ||
524 | if ((space = strchr(buf, ' ')) != NULL) { | |
525 | int mountpoint_len = strlen(impl_share->sa_mountpoint); | |
526 | ||
527 | if (space - buf == mountpoint_len && | |
528 | strncmp(impl_share->sa_mountpoint, buf, | |
529 | mountpoint_len) == 0) { | |
530 | fclose(fp); | |
531 | free(buf); | |
532 | return (B_TRUE); | |
533 | } | |
5333eb0b | 534 | } |
46e18b3f | 535 | } |
c15d36c6 GW |
536 | free(buf); |
537 | fclose(fp); | |
d1d7e268 | 538 | return (B_FALSE); |
46e18b3f GB |
539 | } |
540 | ||
d1d7e268 | 541 | /* |
c15d36c6 | 542 | * Checks whether the specified NFS share options are syntactically correct. |
590338f6 | 543 | */ |
46e18b3f | 544 | static int |
c15d36c6 | 545 | nfs_validate_shareopts(const char *shareopts) |
46e18b3f | 546 | { |
c15d36c6 GW |
547 | char *linux_opts; |
548 | int error; | |
46e18b3f | 549 | |
c15d36c6 | 550 | error = get_linux_shareopts(shareopts, &linux_opts); |
46e18b3f | 551 | |
c15d36c6 GW |
552 | if (error != SA_OK) |
553 | return (error); | |
46e18b3f | 554 | |
c15d36c6 GW |
555 | free(linux_opts); |
556 | return (SA_OK); | |
557 | } | |
46e18b3f | 558 | |
c15d36c6 GW |
559 | static int |
560 | nfs_update_shareopts(sa_share_impl_t impl_share, const char *shareopts) | |
561 | { | |
562 | FSINFO(impl_share, nfs_fstype)->shareopts = (char *)shareopts; | |
d1d7e268 | 563 | return (SA_OK); |
46e18b3f GB |
564 | } |
565 | ||
d1d7e268 | 566 | /* |
590338f6 GB |
567 | * Clears a share's NFS options. Used by libshare to |
568 | * clean up shares that are about to be free()'d. | |
569 | */ | |
46e18b3f GB |
570 | static void |
571 | nfs_clear_shareopts(sa_share_impl_t impl_share) | |
572 | { | |
46e18b3f GB |
573 | FSINFO(impl_share, nfs_fstype)->shareopts = NULL; |
574 | } | |
575 | ||
c15d36c6 GW |
576 | static int |
577 | nfs_commit_shares(void) | |
578 | { | |
579 | char *argv[] = { | |
580 | "/usr/sbin/exportfs", | |
581 | "-ra", | |
582 | NULL | |
583 | }; | |
584 | ||
585 | return (libzfs_run_process(argv[0], argv, 0)); | |
586 | } | |
587 | ||
46e18b3f GB |
588 | static const sa_share_ops_t nfs_shareops = { |
589 | .enable_share = nfs_enable_share, | |
590 | .disable_share = nfs_disable_share, | |
c15d36c6 | 591 | .is_shared = nfs_is_shared, |
46e18b3f GB |
592 | |
593 | .validate_shareopts = nfs_validate_shareopts, | |
594 | .update_shareopts = nfs_update_shareopts, | |
595 | .clear_shareopts = nfs_clear_shareopts, | |
c15d36c6 | 596 | .commit_shares = nfs_commit_shares, |
46e18b3f GB |
597 | }; |
598 | ||
d1d7e268 | 599 | /* |
590338f6 GB |
600 | * Initializes the NFS functionality of libshare. |
601 | */ | |
46e18b3f GB |
602 | void |
603 | libshare_nfs_init(void) | |
604 | { | |
46e18b3f GB |
605 | nfs_fstype = register_fstype("nfs", &nfs_shareops); |
606 | } |