mount.c revision 1.1 1 1.1 cgd /*
2 1.1 cgd * Copyright (c) 1980, 1989 The Regents of the University of California.
3 1.1 cgd * All rights reserved.
4 1.1 cgd *
5 1.1 cgd * Redistribution and use in source and binary forms, with or without
6 1.1 cgd * modification, are permitted provided that the following conditions
7 1.1 cgd * are met:
8 1.1 cgd * 1. Redistributions of source code must retain the above copyright
9 1.1 cgd * notice, this list of conditions and the following disclaimer.
10 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
11 1.1 cgd * notice, this list of conditions and the following disclaimer in the
12 1.1 cgd * documentation and/or other materials provided with the distribution.
13 1.1 cgd * 3. All advertising materials mentioning features or use of this software
14 1.1 cgd * must display the following acknowledgement:
15 1.1 cgd * This product includes software developed by the University of
16 1.1 cgd * California, Berkeley and its contributors.
17 1.1 cgd * 4. Neither the name of the University nor the names of its contributors
18 1.1 cgd * may be used to endorse or promote products derived from this software
19 1.1 cgd * without specific prior written permission.
20 1.1 cgd *
21 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 1.1 cgd * SUCH DAMAGE.
32 1.1 cgd */
33 1.1 cgd
34 1.1 cgd #ifndef lint
35 1.1 cgd char copyright[] =
36 1.1 cgd "@(#) Copyright (c) 1980, 1989 The Regents of the University of California.\n\
37 1.1 cgd All rights reserved.\n";
38 1.1 cgd #endif /* not lint */
39 1.1 cgd
40 1.1 cgd #ifndef lint
41 1.1 cgd static char sccsid[] = "@(#)mount.c 5.44 (Berkeley) 2/26/91";
42 1.1 cgd #endif /* not lint */
43 1.1 cgd
44 1.1 cgd #include <sys/param.h>
45 1.1 cgd #include <sys/file.h>
46 1.1 cgd #include <sys/time.h>
47 1.1 cgd #include <sys/wait.h>
48 1.1 cgd #include <sys/errno.h>
49 1.1 cgd #include <sys/signal.h>
50 1.1 cgd #include <sys/mount.h>
51 1.1 cgd #ifdef NFS
52 1.1 cgd #include <sys/socket.h>
53 1.1 cgd #include <sys/socketvar.h>
54 1.1 cgd #include <netdb.h>
55 1.1 cgd #include <rpc/rpc.h>
56 1.1 cgd #include <rpc/pmap_clnt.h>
57 1.1 cgd #include <rpc/pmap_prot.h>
58 1.1 cgd #include <nfs/rpcv2.h>
59 1.1 cgd #include <nfs/nfsv2.h>
60 1.1 cgd #include <nfs/nfs.h>
61 1.1 cgd #endif
62 1.1 cgd #include <fstab.h>
63 1.1 cgd #include <string.h>
64 1.1 cgd #include <stdio.h>
65 1.1 cgd #include <stdlib.h>
66 1.1 cgd #include "pathnames.h"
67 1.1 cgd
68 1.1 cgd #define DEFAULT_ROOTUID -2
69 1.1 cgd
70 1.1 cgd #define BADTYPE(type) \
71 1.1 cgd (strcmp(type, FSTAB_RO) && strcmp(type, FSTAB_RW) && \
72 1.1 cgd strcmp(type, FSTAB_RQ))
73 1.1 cgd #define SETTYPE(type) \
74 1.1 cgd (!strcmp(type, FSTAB_RW) || !strcmp(type, FSTAB_RQ))
75 1.1 cgd
76 1.1 cgd int fake, verbose, updateflg, mnttype;
77 1.1 cgd char *mntname, **envp;
78 1.1 cgd char **vfslist, **makevfslist();
79 1.1 cgd static void prmount();
80 1.1 cgd
81 1.1 cgd #ifdef NFS
82 1.1 cgd int xdr_dir(), xdr_fh();
83 1.1 cgd char *getnfsargs();
84 1.1 cgd struct nfs_args nfsdefargs = {
85 1.1 cgd (struct sockaddr *)0,
86 1.1 cgd SOCK_DGRAM,
87 1.1 cgd 0,
88 1.1 cgd (nfsv2fh_t *)0,
89 1.1 cgd 0,
90 1.1 cgd NFS_WSIZE,
91 1.1 cgd NFS_RSIZE,
92 1.1 cgd NFS_TIMEO,
93 1.1 cgd NFS_RETRANS,
94 1.1 cgd (char *)0,
95 1.1 cgd };
96 1.1 cgd
97 1.1 cgd struct nfhret {
98 1.1 cgd u_long stat;
99 1.1 cgd nfsv2fh_t nfh;
100 1.1 cgd };
101 1.1 cgd #define DEF_RETRY 10000
102 1.1 cgd int retrycnt;
103 1.1 cgd #define BGRND 1
104 1.1 cgd #define ISBGRND 2
105 1.1 cgd int opflags = 0;
106 1.1 cgd #endif
107 1.1 cgd
108 1.1 cgd main(argc, argv, arge)
109 1.1 cgd int argc;
110 1.1 cgd char **argv;
111 1.1 cgd char **arge;
112 1.1 cgd {
113 1.1 cgd extern char *optarg;
114 1.1 cgd extern int optind;
115 1.1 cgd register struct fstab *fs;
116 1.1 cgd int all, ch, rval, flags, ret, pid, i;
117 1.1 cgd long mntsize;
118 1.1 cgd struct statfs *mntbuf, *getmntpt();
119 1.1 cgd char *type, *options = NULL;
120 1.1 cgd FILE *pidfile;
121 1.1 cgd
122 1.1 cgd envp = arge;
123 1.1 cgd all = 0;
124 1.1 cgd type = NULL;
125 1.1 cgd mnttype = MOUNT_UFS;
126 1.1 cgd mntname = "ufs";
127 1.1 cgd while ((ch = getopt(argc, argv, "afrwuvt:o:")) != EOF)
128 1.1 cgd switch((char)ch) {
129 1.1 cgd case 'a':
130 1.1 cgd all = 1;
131 1.1 cgd break;
132 1.1 cgd case 'f':
133 1.1 cgd fake = 1;
134 1.1 cgd break;
135 1.1 cgd case 'r':
136 1.1 cgd type = FSTAB_RO;
137 1.1 cgd break;
138 1.1 cgd case 'u':
139 1.1 cgd updateflg = MNT_UPDATE;
140 1.1 cgd break;
141 1.1 cgd case 'v':
142 1.1 cgd verbose = 1;
143 1.1 cgd break;
144 1.1 cgd case 'w':
145 1.1 cgd type = FSTAB_RW;
146 1.1 cgd break;
147 1.1 cgd case 'o':
148 1.1 cgd options = optarg;
149 1.1 cgd break;
150 1.1 cgd case 't':
151 1.1 cgd vfslist = makevfslist(optarg);
152 1.1 cgd mnttype = getmnttype(optarg);
153 1.1 cgd break;
154 1.1 cgd case '?':
155 1.1 cgd default:
156 1.1 cgd usage();
157 1.1 cgd /* NOTREACHED */
158 1.1 cgd }
159 1.1 cgd argc -= optind;
160 1.1 cgd argv += optind;
161 1.1 cgd
162 1.1 cgd /* NOSTRICT */
163 1.1 cgd
164 1.1 cgd if (all) {
165 1.1 cgd rval = 0;
166 1.1 cgd while (fs = getfsent()) {
167 1.1 cgd if (BADTYPE(fs->fs_type))
168 1.1 cgd continue;
169 1.1 cgd if (badvfsname(fs->fs_vfstype, vfslist))
170 1.1 cgd continue;
171 1.1 cgd /* `/' is special, it's always mounted */
172 1.1 cgd if (!strcmp(fs->fs_file, "/"))
173 1.1 cgd flags = MNT_UPDATE;
174 1.1 cgd else
175 1.1 cgd flags = updateflg;
176 1.1 cgd mnttype = getmnttype(fs->fs_vfstype);
177 1.1 cgd rval |= mountfs(fs->fs_spec, fs->fs_file, flags,
178 1.1 cgd type, options, fs->fs_mntops);
179 1.1 cgd }
180 1.1 cgd exit(rval);
181 1.1 cgd }
182 1.1 cgd
183 1.1 cgd if (argc == 0) {
184 1.1 cgd if (verbose || fake || type)
185 1.1 cgd usage();
186 1.1 cgd if ((mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0) {
187 1.1 cgd (void) fprintf(stderr,
188 1.1 cgd "mount: cannot get mount information\n");
189 1.1 cgd exit(1);
190 1.1 cgd }
191 1.1 cgd for (i = 0; i < mntsize; i++) {
192 1.1 cgd if (badvfstype(mntbuf[i].f_type, vfslist))
193 1.1 cgd continue;
194 1.1 cgd prmount(mntbuf[i].f_mntfromname, mntbuf[i].f_mntonname,
195 1.1 cgd mntbuf[i].f_flags);
196 1.1 cgd }
197 1.1 cgd exit(0);
198 1.1 cgd }
199 1.1 cgd
200 1.1 cgd if (argc == 1 && updateflg) {
201 1.1 cgd if ((mntbuf = getmntpt(*argv)) == NULL) {
202 1.1 cgd (void) fprintf(stderr,
203 1.1 cgd "mount: unknown special file or file system %s.\n",
204 1.1 cgd *argv);
205 1.1 cgd exit(1);
206 1.1 cgd }
207 1.1 cgd mnttype = mntbuf->f_type;
208 1.1 cgd #ifndef LETS_GET_SMALL
209 1.1 cgd if (!strcmp(mntbuf->f_mntfromname, "root_device")) {
210 1.1 cgd fs = getfsfile("/");
211 1.1 cgd strcpy(mntbuf->f_mntfromname, fs->fs_spec);
212 1.1 cgd }
213 1.1 cgd #endif
214 1.1 cgd ret = mountfs(mntbuf->f_mntfromname, mntbuf->f_mntonname,
215 1.1 cgd updateflg, type, options, (char *)NULL);
216 1.1 cgd } else if (argc == 1) {
217 1.1 cgd #ifndef LETS_GET_SMALL
218 1.1 cgd if (!(fs = getfsfile(*argv)) && !(fs = getfsspec(*argv))) {
219 1.1 cgd (void) fprintf(stderr,
220 1.1 cgd "mount: unknown special file or file system %s.\n",
221 1.1 cgd *argv);
222 1.1 cgd exit(1);
223 1.1 cgd }
224 1.1 cgd if (BADTYPE(fs->fs_type)) {
225 1.1 cgd (void) fprintf(stderr,
226 1.1 cgd "mount: %s has unknown file system type.\n", *argv);
227 1.1 cgd exit(1);
228 1.1 cgd }
229 1.1 cgd mnttype = getmnttype(fs->fs_vfstype);
230 1.1 cgd ret = mountfs(fs->fs_spec, fs->fs_file, updateflg,
231 1.1 cgd type, options, fs->fs_mntops);
232 1.1 cgd #else
233 1.1 cgd exit(1);
234 1.1 cgd #endif
235 1.1 cgd } else if (argc != 2) {
236 1.1 cgd usage();
237 1.1 cgd ret = 1;
238 1.1 cgd } else {
239 1.1 cgd /*
240 1.1 cgd * If -t flag has not been specified, and spec
241 1.1 cgd * contains either a ':' or a '@' then assume that
242 1.1 cgd * an NFS filesystem is being specified ala Sun.
243 1.1 cgd */
244 1.1 cgd if (vfslist == (char **)0 &&
245 1.1 cgd (index(argv[0], ':') || index(argv[0], '@')))
246 1.1 cgd mnttype = MOUNT_NFS;
247 1.1 cgd ret = mountfs(argv[0], argv[1], updateflg, type, options,
248 1.1 cgd (char *)NULL);
249 1.1 cgd }
250 1.1 cgd #ifndef LETS_GET_SMALL
251 1.1 cgd if ((pidfile = fopen(_PATH_MOUNTDPID, "r")) != NULL) {
252 1.1 cgd pid = 0;
253 1.1 cgd fscanf(pidfile, "%d", &pid);
254 1.1 cgd fclose(pidfile);
255 1.1 cgd if (pid > 0)
256 1.1 cgd kill(pid, SIGHUP);
257 1.1 cgd }
258 1.1 cgd #endif
259 1.1 cgd exit (ret);
260 1.1 cgd }
261 1.1 cgd
262 1.1 cgd mountfs(spec, name, flags, type, options, mntopts)
263 1.1 cgd char *spec, *name, *type, *options, *mntopts;
264 1.1 cgd int flags;
265 1.1 cgd {
266 1.1 cgd union wait status;
267 1.1 cgd pid_t pid;
268 1.1 cgd int argc, i;
269 1.1 cgd struct ufs_args args;
270 1.1 cgd #ifdef NFS
271 1.1 cgd struct nfs_args nfsargs;
272 1.1 cgd #endif
273 1.1 cgd char *argp, *argv[50];
274 1.1 cgd char execname[MAXPATHLEN + 1], flagval[12];
275 1.1 cgd
276 1.1 cgd #ifdef NFS
277 1.1 cgd nfsargs = nfsdefargs;
278 1.1 cgd #endif
279 1.1 cgd if (mntopts)
280 1.1 cgd getstdopts(mntopts, &flags);
281 1.1 cgd if (options)
282 1.1 cgd getstdopts(options, &flags);
283 1.1 cgd if (type)
284 1.1 cgd getstdopts(type, &flags);
285 1.1 cgd switch (mnttype) {
286 1.1 cgd case MOUNT_UFS:
287 1.1 cgd if (mntopts)
288 1.1 cgd getufsopts(mntopts, &flags);
289 1.1 cgd if (options)
290 1.1 cgd getufsopts(options, &flags);
291 1.1 cgd args.fspec = spec;
292 1.1 cgd args.exroot = DEFAULT_ROOTUID;
293 1.1 cgd if (flags & MNT_RDONLY)
294 1.1 cgd args.exflags = MNT_EXRDONLY;
295 1.1 cgd else
296 1.1 cgd args.exflags = 0;
297 1.1 cgd argp = (caddr_t)&args;
298 1.1 cgd break;
299 1.1 cgd
300 1.1 cgd #ifdef NFS
301 1.1 cgd case MOUNT_NFS:
302 1.1 cgd retrycnt = DEF_RETRY;
303 1.1 cgd if (mntopts)
304 1.1 cgd getnfsopts(mntopts, &nfsargs, &opflags, &retrycnt);
305 1.1 cgd if (options)
306 1.1 cgd getnfsopts(options, &nfsargs, &opflags, &retrycnt);
307 1.1 cgd if (argp = getnfsargs(spec, &nfsargs))
308 1.1 cgd break;
309 1.1 cgd return (1);
310 1.1 cgd #endif /* NFS */
311 1.1 cgd
312 1.1 cgd #ifndef LETS_GET_SMALL
313 1.1 cgd case MOUNT_MFS:
314 1.1 cgd default:
315 1.1 cgd argv[0] = mntname;
316 1.1 cgd argc = 1;
317 1.1 cgd if (flags) {
318 1.1 cgd argv[argc++] = "-F";
319 1.1 cgd sprintf(flagval, "%d", flags);
320 1.1 cgd argv[argc++] = flagval;
321 1.1 cgd }
322 1.1 cgd if (mntopts)
323 1.1 cgd argc += getexecopts(mntopts, &argv[argc]);
324 1.1 cgd if (options)
325 1.1 cgd argc += getexecopts(options, &argv[argc]);
326 1.1 cgd argv[argc++] = spec;
327 1.1 cgd argv[argc++] = name;
328 1.1 cgd argv[argc++] = NULL;
329 1.1 cgd sprintf(execname, "%s/mount_%s", _PATH_EXECDIR, mntname);
330 1.1 cgd if (verbose) {
331 1.1 cgd (void)printf("exec: %s", execname);
332 1.1 cgd for (i = 1; i < argc - 1; i++)
333 1.1 cgd (void)printf(" %s", argv[i]);
334 1.1 cgd (void)printf("\n");
335 1.1 cgd }
336 1.1 cgd if (fake)
337 1.1 cgd break;
338 1.1 cgd if (pid = vfork()) {
339 1.1 cgd if (pid == -1) {
340 1.1 cgd perror("mount: vfork starting file system");
341 1.1 cgd return (1);
342 1.1 cgd }
343 1.1 cgd if (waitpid(pid, (int *)&status, 0) != -1 &&
344 1.1 cgd WIFEXITED(status) &&
345 1.1 cgd WEXITSTATUS(status) != 0)
346 1.1 cgd return (WEXITSTATUS(status));
347 1.1 cgd spec = mntname;
348 1.1 cgd goto out;
349 1.1 cgd }
350 1.1 cgd execve(execname, argv, envp);
351 1.1 cgd (void) fprintf(stderr, "mount: cannot exec %s for %s: ",
352 1.1 cgd execname, name);
353 1.1 cgd perror((char *)NULL);
354 1.1 cgd exit (1);
355 1.1 cgd #endif
356 1.1 cgd /* NOTREACHED */
357 1.1 cgd
358 1.1 cgd }
359 1.1 cgd if (!fake && mount(mnttype, name, flags, argp)) {
360 1.1 cgd #ifdef NFS
361 1.1 cgd if (opflags & ISBGRND)
362 1.1 cgd exit(1);
363 1.1 cgd #endif
364 1.1 cgd (void) fprintf(stderr, "%s on %s: ", spec, name);
365 1.1 cgd switch (errno) {
366 1.1 cgd case EMFILE:
367 1.1 cgd (void) fprintf(stderr, "Mount table full\n");
368 1.1 cgd break;
369 1.1 cgd case EINVAL:
370 1.1 cgd if (flags & MNT_UPDATE)
371 1.1 cgd (void) fprintf(stderr, "Specified device %s\n",
372 1.1 cgd "does not match mounted device");
373 1.1 cgd else if (mnttype == MOUNT_UFS)
374 1.1 cgd (void) fprintf(stderr, "Bogus super block\n");
375 1.1 cgd else
376 1.1 cgd perror((char *)NULL);
377 1.1 cgd break;
378 1.1 cgd default:
379 1.1 cgd perror((char *)NULL);
380 1.1 cgd break;
381 1.1 cgd }
382 1.1 cgd return(1);
383 1.1 cgd }
384 1.1 cgd
385 1.1 cgd out:
386 1.1 cgd if (verbose)
387 1.1 cgd prmount(spec, name, flags);
388 1.1 cgd
389 1.1 cgd #ifdef NFS
390 1.1 cgd if (opflags & ISBGRND)
391 1.1 cgd exit(1);
392 1.1 cgd #endif
393 1.1 cgd return(0);
394 1.1 cgd }
395 1.1 cgd
396 1.1 cgd static void
397 1.1 cgd prmount(spec, name, flags)
398 1.1 cgd char *spec, *name;
399 1.1 cgd register short flags;
400 1.1 cgd {
401 1.1 cgd register int first;
402 1.1 cgd
403 1.1 cgd #ifdef NFS
404 1.1 cgd if (opflags & ISBGRND)
405 1.1 cgd return;
406 1.1 cgd #endif
407 1.1 cgd (void)printf("%s on %s", spec, name);
408 1.1 cgd if (!(flags & MNT_VISFLAGMASK)) {
409 1.1 cgd (void)printf("\n");
410 1.1 cgd return;
411 1.1 cgd }
412 1.1 cgd first = 0;
413 1.1 cgd #define PR(msg) (void)printf("%s%s", !first++ ? " (" : ", ", msg)
414 1.1 cgd if (flags & MNT_RDONLY)
415 1.1 cgd PR("read-only");
416 1.1 cgd if (flags & MNT_NOEXEC)
417 1.1 cgd PR("noexec");
418 1.1 cgd if (flags & MNT_NOSUID)
419 1.1 cgd PR("nosuid");
420 1.1 cgd if (flags & MNT_NODEV)
421 1.1 cgd PR("nodev");
422 1.1 cgd if (flags & MNT_SYNCHRONOUS)
423 1.1 cgd PR("synchronous");
424 1.1 cgd if (flags & MNT_QUOTA)
425 1.1 cgd PR("with quotas");
426 1.1 cgd if (flags & MNT_LOCAL)
427 1.1 cgd PR("local");
428 1.1 cgd if (flags & MNT_EXPORTED)
429 1.1 cgd if (flags & MNT_EXRDONLY)
430 1.1 cgd PR("NFS exported read-only");
431 1.1 cgd else
432 1.1 cgd PR("NFS exported");
433 1.1 cgd (void)printf(")\n");
434 1.1 cgd }
435 1.1 cgd
436 1.1 cgd getmnttype(fstype)
437 1.1 cgd char *fstype;
438 1.1 cgd {
439 1.1 cgd
440 1.1 cgd mntname = fstype;
441 1.1 cgd if (!strcmp(fstype, "ufs"))
442 1.1 cgd return (MOUNT_UFS);
443 1.1 cgd if (!strcmp(fstype, "nfs"))
444 1.1 cgd return (MOUNT_NFS);
445 1.1 cgd if (!strcmp(fstype, "mfs"))
446 1.1 cgd return (MOUNT_MFS);
447 1.1 cgd return (0);
448 1.1 cgd }
449 1.1 cgd
450 1.1 cgd usage()
451 1.1 cgd {
452 1.1 cgd
453 1.1 cgd (void) fprintf(stderr,
454 1.1 cgd "usage:\n mount %s %s\n mount %s\n mount %s\n",
455 1.1 cgd "[ -frwu ] [ -t nfs | ufs | external_type ]",
456 1.1 cgd "[ -o options ] special node",
457 1.1 cgd "[ -afrwu ] [ -t nfs | ufs | external_type ]",
458 1.1 cgd "[ -frwu ] special | node");
459 1.1 cgd exit(1);
460 1.1 cgd }
461 1.1 cgd
462 1.1 cgd getstdopts(options, flagp)
463 1.1 cgd char *options;
464 1.1 cgd int *flagp;
465 1.1 cgd {
466 1.1 cgd register char *opt;
467 1.1 cgd int negative;
468 1.1 cgd char optbuf[BUFSIZ];
469 1.1 cgd
470 1.1 cgd (void)strcpy(optbuf, options);
471 1.1 cgd for (opt = strtok(optbuf, ","); opt; opt = strtok((char *)NULL, ",")) {
472 1.1 cgd if (opt[0] == 'n' && opt[1] == 'o') {
473 1.1 cgd negative++;
474 1.1 cgd opt += 2;
475 1.1 cgd } else {
476 1.1 cgd negative = 0;
477 1.1 cgd }
478 1.1 cgd if (!negative && !strcasecmp(opt, FSTAB_RO)) {
479 1.1 cgd *flagp |= MNT_RDONLY;
480 1.1 cgd continue;
481 1.1 cgd }
482 1.1 cgd if (!negative && !strcasecmp(opt, FSTAB_RW)) {
483 1.1 cgd *flagp &= ~MNT_RDONLY;
484 1.1 cgd continue;
485 1.1 cgd }
486 1.1 cgd if (!strcasecmp(opt, "exec")) {
487 1.1 cgd if (negative)
488 1.1 cgd *flagp |= MNT_NOEXEC;
489 1.1 cgd else
490 1.1 cgd *flagp &= ~MNT_NOEXEC;
491 1.1 cgd continue;
492 1.1 cgd }
493 1.1 cgd if (!strcasecmp(opt, "suid")) {
494 1.1 cgd if (negative)
495 1.1 cgd *flagp |= MNT_NOSUID;
496 1.1 cgd else
497 1.1 cgd *flagp &= ~MNT_NOSUID;
498 1.1 cgd continue;
499 1.1 cgd }
500 1.1 cgd if (!strcasecmp(opt, "dev")) {
501 1.1 cgd if (negative)
502 1.1 cgd *flagp |= MNT_NODEV;
503 1.1 cgd else
504 1.1 cgd *flagp &= ~MNT_NODEV;
505 1.1 cgd continue;
506 1.1 cgd }
507 1.1 cgd if (!strcasecmp(opt, "synchronous")) {
508 1.1 cgd if (!negative)
509 1.1 cgd *flagp |= MNT_SYNCHRONOUS;
510 1.1 cgd else
511 1.1 cgd *flagp &= ~MNT_SYNCHRONOUS;
512 1.1 cgd continue;
513 1.1 cgd }
514 1.1 cgd }
515 1.1 cgd }
516 1.1 cgd
517 1.1 cgd /* ARGSUSED */
518 1.1 cgd getufsopts(options, flagp)
519 1.1 cgd char *options;
520 1.1 cgd int *flagp;
521 1.1 cgd {
522 1.1 cgd return;
523 1.1 cgd }
524 1.1 cgd
525 1.1 cgd getexecopts(options, argv)
526 1.1 cgd char *options;
527 1.1 cgd char **argv;
528 1.1 cgd {
529 1.1 cgd register int argc = 0;
530 1.1 cgd register char *opt;
531 1.1 cgd
532 1.1 cgd for (opt = strtok(options, ","); opt; opt = strtok((char *)NULL, ",")) {
533 1.1 cgd if (opt[0] != '-')
534 1.1 cgd continue;
535 1.1 cgd argv[argc++] = opt;
536 1.1 cgd if (opt[2] == '\0' || opt[2] != '=')
537 1.1 cgd continue;
538 1.1 cgd opt[2] = '\0';
539 1.1 cgd argv[argc++] = &opt[3];
540 1.1 cgd }
541 1.1 cgd return (argc);
542 1.1 cgd }
543 1.1 cgd
544 1.1 cgd struct statfs *
545 1.1 cgd getmntpt(name)
546 1.1 cgd char *name;
547 1.1 cgd {
548 1.1 cgd long mntsize;
549 1.1 cgd register long i;
550 1.1 cgd struct statfs *mntbuf;
551 1.1 cgd
552 1.1 cgd mntsize = getmntinfo(&mntbuf, MNT_NOWAIT);
553 1.1 cgd for (i = 0; i < mntsize; i++) {
554 1.1 cgd if (!strcmp(mntbuf[i].f_mntfromname, name) ||
555 1.1 cgd !strcmp(mntbuf[i].f_mntonname, name))
556 1.1 cgd return (&mntbuf[i]);
557 1.1 cgd }
558 1.1 cgd return ((struct statfs *)0);
559 1.1 cgd }
560 1.1 cgd
561 1.1 cgd static int skipvfs;
562 1.1 cgd
563 1.1 cgd badvfstype(vfstype, vfslist)
564 1.1 cgd short vfstype;
565 1.1 cgd char **vfslist;
566 1.1 cgd {
567 1.1 cgd
568 1.1 cgd if (vfslist == 0)
569 1.1 cgd return(0);
570 1.1 cgd while (*vfslist) {
571 1.1 cgd if (vfstype == getmnttype(*vfslist))
572 1.1 cgd return(skipvfs);
573 1.1 cgd vfslist++;
574 1.1 cgd }
575 1.1 cgd return (!skipvfs);
576 1.1 cgd }
577 1.1 cgd
578 1.1 cgd badvfsname(vfsname, vfslist)
579 1.1 cgd char *vfsname;
580 1.1 cgd char **vfslist;
581 1.1 cgd {
582 1.1 cgd
583 1.1 cgd if (vfslist == 0)
584 1.1 cgd return(0);
585 1.1 cgd while (*vfslist) {
586 1.1 cgd if (strcmp(vfsname, *vfslist) == 0)
587 1.1 cgd return(skipvfs);
588 1.1 cgd vfslist++;
589 1.1 cgd }
590 1.1 cgd return (!skipvfs);
591 1.1 cgd }
592 1.1 cgd
593 1.1 cgd char **
594 1.1 cgd makevfslist(fslist)
595 1.1 cgd char *fslist;
596 1.1 cgd {
597 1.1 cgd register char **av, *nextcp;
598 1.1 cgd register int i;
599 1.1 cgd
600 1.1 cgd if (fslist == NULL)
601 1.1 cgd return (NULL);
602 1.1 cgd if (fslist[0] == 'n' && fslist[1] == 'o') {
603 1.1 cgd fslist += 2;
604 1.1 cgd skipvfs = 1;
605 1.1 cgd }
606 1.1 cgd for (i = 0, nextcp = fslist; *nextcp; nextcp++)
607 1.1 cgd if (*nextcp == ',')
608 1.1 cgd i++;
609 1.1 cgd av = (char **)malloc((size_t)(i+2) * sizeof(char *));
610 1.1 cgd if (av == NULL)
611 1.1 cgd return (NULL);
612 1.1 cgd nextcp = fslist;
613 1.1 cgd i = 0;
614 1.1 cgd av[i++] = nextcp;
615 1.1 cgd while (nextcp = index(nextcp, ',')) {
616 1.1 cgd *nextcp++ = '\0';
617 1.1 cgd av[i++] = nextcp;
618 1.1 cgd }
619 1.1 cgd av[i++] = 0;
620 1.1 cgd return (av);
621 1.1 cgd }
622 1.1 cgd
623 1.1 cgd #ifdef NFS
624 1.1 cgd exclusive(a, b)
625 1.1 cgd char *a, *b;
626 1.1 cgd {
627 1.1 cgd
628 1.1 cgd (void) fprintf(stderr, "mount: Options %s, %s mutually exclusive\n",
629 1.1 cgd a, b);
630 1.1 cgd exit(1);
631 1.1 cgd }
632 1.1 cgd
633 1.1 cgd /*
634 1.1 cgd * Handle the getoption arg.
635 1.1 cgd * Essentially update "opflags", "retrycnt" and "nfsargs"
636 1.1 cgd */
637 1.1 cgd getnfsopts(optarg, nfsargsp, opflagsp, retrycntp)
638 1.1 cgd char *optarg;
639 1.1 cgd register struct nfs_args *nfsargsp;
640 1.1 cgd int *opflagsp;
641 1.1 cgd int *retrycntp;
642 1.1 cgd {
643 1.1 cgd register char *cp, *nextcp;
644 1.1 cgd int num;
645 1.1 cgd char *nump;
646 1.1 cgd
647 1.1 cgd for (cp = optarg; cp != NULL && *cp != '\0'; cp = nextcp) {
648 1.1 cgd if ((nextcp = index(cp, ',')) != NULL)
649 1.1 cgd *nextcp++ = '\0';
650 1.1 cgd if ((nump = index(cp, '=')) != NULL) {
651 1.1 cgd *nump++ = '\0';
652 1.1 cgd num = atoi(nump);
653 1.1 cgd } else
654 1.1 cgd num = -1;
655 1.1 cgd /*
656 1.1 cgd * Just test for a string match and do it
657 1.1 cgd */
658 1.1 cgd if (!strcmp(cp, "bg")) {
659 1.1 cgd *opflagsp |= BGRND;
660 1.1 cgd } else if (!strcmp(cp, "soft")) {
661 1.1 cgd if (nfsargsp->flags & NFSMNT_SPONGY)
662 1.1 cgd exclusive("soft, spongy");
663 1.1 cgd nfsargsp->flags |= NFSMNT_SOFT;
664 1.1 cgd } else if (!strcmp(cp, "spongy")) {
665 1.1 cgd if (nfsargsp->flags & NFSMNT_SOFT)
666 1.1 cgd exclusive("soft, spongy");
667 1.1 cgd nfsargsp->flags |= NFSMNT_SPONGY;
668 1.1 cgd } else if (!strcmp(cp, "compress")) {
669 1.1 cgd nfsargsp->flags |= NFSMNT_COMPRESS;
670 1.1 cgd } else if (!strcmp(cp, "intr")) {
671 1.1 cgd nfsargsp->flags |= NFSMNT_INT;
672 1.1 cgd } else if (!strcmp(cp, "tcp")) {
673 1.1 cgd nfsargsp->sotype = SOCK_STREAM;
674 1.1 cgd } else if (!strcmp(cp, "noconn")) {
675 1.1 cgd nfsargsp->flags |= NFSMNT_NOCONN;
676 1.1 cgd } else if (!strcmp(cp, "retry") && num > 0) {
677 1.1 cgd *retrycntp = num;
678 1.1 cgd } else if (!strcmp(cp, "rsize") && num > 0) {
679 1.1 cgd nfsargsp->rsize = num;
680 1.1 cgd nfsargsp->flags |= NFSMNT_RSIZE;
681 1.1 cgd } else if (!strcmp(cp, "wsize") && num > 0) {
682 1.1 cgd nfsargsp->wsize = num;
683 1.1 cgd nfsargsp->flags |= NFSMNT_WSIZE;
684 1.1 cgd } else if (!strcmp(cp, "timeo") && num > 0) {
685 1.1 cgd nfsargsp->timeo = num;
686 1.1 cgd nfsargsp->flags |= NFSMNT_TIMEO;
687 1.1 cgd } else if (!strcmp(cp, "retrans") && num > 0) {
688 1.1 cgd nfsargsp->retrans = num;
689 1.1 cgd nfsargsp->flags |= NFSMNT_RETRANS;
690 1.1 cgd }
691 1.1 cgd }
692 1.1 cgd if (nfsargsp->sotype == SOCK_DGRAM) {
693 1.1 cgd if (nfsargsp->rsize > NFS_MAXDGRAMDATA)
694 1.1 cgd nfsargsp->rsize = NFS_MAXDGRAMDATA;
695 1.1 cgd if (nfsargsp->wsize > NFS_MAXDGRAMDATA)
696 1.1 cgd nfsargsp->wsize = NFS_MAXDGRAMDATA;
697 1.1 cgd }
698 1.1 cgd }
699 1.1 cgd
700 1.1 cgd char *
701 1.1 cgd getnfsargs(spec, nfsargsp)
702 1.1 cgd char *spec;
703 1.1 cgd struct nfs_args *nfsargsp;
704 1.1 cgd {
705 1.1 cgd register CLIENT *clp;
706 1.1 cgd struct hostent *hp;
707 1.1 cgd static struct sockaddr_in saddr;
708 1.1 cgd struct timeval pertry, try;
709 1.1 cgd enum clnt_stat clnt_stat;
710 1.1 cgd int so = RPC_ANYSOCK;
711 1.1 cgd char *fsp, *hostp, *delimp;
712 1.1 cgd u_short tport;
713 1.1 cgd static struct nfhret nfhret;
714 1.1 cgd static char nam[MNAMELEN + 1];
715 1.1 cgd char buf[MAXPATHLEN + 1];
716 1.1 cgd
717 1.1 cgd strncpy(buf, spec, MAXPATHLEN);
718 1.1 cgd buf[MAXPATHLEN] = '\0';
719 1.1 cgd strncpy(nam, spec, MNAMELEN);
720 1.1 cgd nam[MNAMELEN] = '\0';
721 1.1 cgd if ((delimp = index(buf, '@')) != NULL) {
722 1.1 cgd hostp = delimp + 1;
723 1.1 cgd fsp = buf;
724 1.1 cgd } else if ((delimp = index(buf, ':')) != NULL) {
725 1.1 cgd hostp = buf;
726 1.1 cgd fsp = delimp + 1;
727 1.1 cgd } else {
728 1.1 cgd (void) fprintf(stderr,
729 1.1 cgd "mount: No <host>:<dirpath> or <dirpath>@<host> spec\n");
730 1.1 cgd return (0);
731 1.1 cgd }
732 1.1 cgd *delimp = '\0';
733 1.1 cgd if ((hp = gethostbyname(hostp)) == NULL) {
734 1.1 cgd (void) fprintf(stderr, "mount: Can't get net id for host\n");
735 1.1 cgd return (0);
736 1.1 cgd }
737 1.1 cgd bcopy(hp->h_addr, (caddr_t)&saddr.sin_addr, hp->h_length);
738 1.1 cgd nfhret.stat = ETIMEDOUT; /* Mark not yet successful */
739 1.1 cgd while (retrycnt > 0) {
740 1.1 cgd saddr.sin_family = AF_INET;
741 1.1 cgd saddr.sin_port = htons(PMAPPORT);
742 1.1 cgd if ((tport = pmap_getport(&saddr, RPCPROG_NFS,
743 1.1 cgd NFS_VER2, IPPROTO_UDP)) == 0) {
744 1.1 cgd if ((opflags & ISBGRND) == 0)
745 1.1 cgd clnt_pcreateerror("NFS Portmap");
746 1.1 cgd } else {
747 1.1 cgd saddr.sin_port = 0;
748 1.1 cgd pertry.tv_sec = 10;
749 1.1 cgd pertry.tv_usec = 0;
750 1.1 cgd if ((clp = clntudp_create(&saddr, RPCPROG_MNT,
751 1.1 cgd RPCMNT_VER1, pertry, &so)) == NULL) {
752 1.1 cgd if ((opflags & ISBGRND) == 0)
753 1.1 cgd clnt_pcreateerror("Cannot MNT PRC");
754 1.1 cgd } else {
755 1.1 cgd clp->cl_auth = authunix_create_default();
756 1.1 cgd try.tv_sec = 10;
757 1.1 cgd try.tv_usec = 0;
758 1.1 cgd clnt_stat = clnt_call(clp, RPCMNT_MOUNT,
759 1.1 cgd xdr_dir, fsp, xdr_fh, &nfhret, try);
760 1.1 cgd if (clnt_stat != RPC_SUCCESS) {
761 1.1 cgd if ((opflags & ISBGRND) == 0)
762 1.1 cgd clnt_perror(clp, "Bad MNT RPC");
763 1.1 cgd } else {
764 1.1 cgd auth_destroy(clp->cl_auth);
765 1.1 cgd clnt_destroy(clp);
766 1.1 cgd retrycnt = 0;
767 1.1 cgd }
768 1.1 cgd }
769 1.1 cgd }
770 1.1 cgd if (--retrycnt > 0) {
771 1.1 cgd if (opflags & BGRND) {
772 1.1 cgd opflags &= ~BGRND;
773 1.1 cgd if (fork())
774 1.1 cgd return (0);
775 1.1 cgd else
776 1.1 cgd opflags |= ISBGRND;
777 1.1 cgd }
778 1.1 cgd sleep(10);
779 1.1 cgd }
780 1.1 cgd }
781 1.1 cgd if (nfhret.stat) {
782 1.1 cgd if (opflags & ISBGRND)
783 1.1 cgd exit(1);
784 1.1 cgd (void) fprintf(stderr, "Mount RPC error on %s: ", spec);
785 1.1 cgd errno = nfhret.stat;
786 1.1 cgd perror((char *)NULL);
787 1.1 cgd return (0);
788 1.1 cgd }
789 1.1 cgd saddr.sin_port = htons(tport);
790 1.1 cgd nfsargsp->addr = (struct sockaddr *) &saddr;
791 1.1 cgd nfsargsp->fh = &nfhret.nfh;
792 1.1 cgd nfsargsp->hostname = nam;
793 1.1 cgd return ((caddr_t)nfsargsp);
794 1.1 cgd }
795 1.1 cgd
796 1.1 cgd /*
797 1.1 cgd * xdr routines for mount rpc's
798 1.1 cgd */
799 1.1 cgd xdr_dir(xdrsp, dirp)
800 1.1 cgd XDR *xdrsp;
801 1.1 cgd char *dirp;
802 1.1 cgd {
803 1.1 cgd return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));
804 1.1 cgd }
805 1.1 cgd
806 1.1 cgd xdr_fh(xdrsp, np)
807 1.1 cgd XDR *xdrsp;
808 1.1 cgd struct nfhret *np;
809 1.1 cgd {
810 1.1 cgd if (!xdr_u_long(xdrsp, &(np->stat)))
811 1.1 cgd return (0);
812 1.1 cgd if (np->stat)
813 1.1 cgd return (1);
814 1.1 cgd return (xdr_opaque(xdrsp, (caddr_t)&(np->nfh), NFSX_FH));
815 1.1 cgd }
816 1.1 cgd #endif /* NFS */
817