mount.c revision 95318
128671Ssteve/*- 21558Srgrimes * Copyright (c) 1980, 1989, 1993, 1994 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * Redistribution and use in source and binary forms, with or without 61558Srgrimes * modification, are permitted provided that the following conditions 71558Srgrimes * are met: 81558Srgrimes * 1. Redistributions of source code must retain the above copyright 91558Srgrimes * notice, this list of conditions and the following disclaimer. 101558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111558Srgrimes * notice, this list of conditions and the following disclaimer in the 121558Srgrimes * documentation and/or other materials provided with the distribution. 131558Srgrimes * 3. All advertising materials mentioning features or use of this software 141558Srgrimes * must display the following acknowledgement: 151558Srgrimes * This product includes software developed by the University of 161558Srgrimes * California, Berkeley and its contributors. 171558Srgrimes * 4. Neither the name of the University nor the names of its contributors 181558Srgrimes * may be used to endorse or promote products derived from this software 191558Srgrimes * without specific prior written permission. 201558Srgrimes * 211558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311558Srgrimes * SUCH DAMAGE. 321558Srgrimes */ 331558Srgrimes 341558Srgrimes#ifndef lint 3528671Sstevestatic const char copyright[] = 361558Srgrimes"@(#) Copyright (c) 1980, 1989, 1993, 1994\n\ 371558Srgrimes The Regents of the University of California. All rights reserved.\n"; 381558Srgrimes#endif /* not lint */ 391558Srgrimes 401558Srgrimes#ifndef lint 4128671Ssteve#if 0 4223678Speterstatic char sccsid[] = "@(#)mount.c 8.25 (Berkeley) 5/8/95"; 4337425Scharnier#endif 4428671Sstevestatic const char rcsid[] = 4550476Speter "$FreeBSD: head/sbin/mount/mount.c 95318 2002-04-23 17:24:02Z mux $"; 461558Srgrimes#endif /* not lint */ 471558Srgrimes 481558Srgrimes#include <sys/param.h> 491558Srgrimes#include <sys/mount.h> 5023805Sbde#include <sys/stat.h> 511558Srgrimes#include <sys/wait.h> 521558Srgrimes 5395289Smux#include <ctype.h> 541558Srgrimes#include <err.h> 551558Srgrimes#include <errno.h> 561558Srgrimes#include <fstab.h> 5723678Speter#include <pwd.h> 581558Srgrimes#include <signal.h> 591558Srgrimes#include <stdio.h> 601558Srgrimes#include <stdlib.h> 611558Srgrimes#include <string.h> 621558Srgrimes#include <unistd.h> 631558Srgrimes 6428671Ssteve#include "extern.h" 6552055Sphk#include "mntopts.h" 661558Srgrimes#include "pathnames.h" 671558Srgrimes 6846619Sjkoshy/* `meta' options */ 6946619Sjkoshy#define MOUNT_META_OPTION_FSTAB "fstab" 7046619Sjkoshy#define MOUNT_META_OPTION_CURRENT "current" 7146619Sjkoshy 7223805Sbdeint debug, fstab_style, verbose; 731558Srgrimes 7492882Simpchar *catopt(char *, const char *); 7592882Simpstruct statfs *getmntpt(const char *); 7692882Simpint hasopt(const char *, const char *); 7792882Simpint ismounted(struct fstab *, struct statfs *, int); 7892882Simpint isremountable(const char *); 7992882Simpvoid mangle(char *, int *, const char **); 8092882Simpchar *update_options(char *, char *, int); 8192882Simpint mountfs(const char *, const char *, const char *, 8292882Simp int, const char *, const char *); 8392882Simpvoid remopt(char *, const char *); 8492882Simpvoid prmount(struct statfs *); 8592882Simpvoid putfsent(const struct statfs *); 8692882Simpvoid usage(void); 8792882Simpchar *flags2opts(int); 881558Srgrimes 8937425Scharnier/* Map from mount options to printable formats. */ 901558Srgrimesstatic struct opt { 911558Srgrimes int o_opt; 921558Srgrimes const char *o_name; 931558Srgrimes} optnames[] = { 941558Srgrimes { MNT_ASYNC, "asynchronous" }, 951558Srgrimes { MNT_EXPORTED, "NFS exported" }, 961558Srgrimes { MNT_LOCAL, "local" }, 9718007Sdg { MNT_NOATIME, "noatime" }, 981558Srgrimes { MNT_NODEV, "nodev" }, 991558Srgrimes { MNT_NOEXEC, "noexec" }, 1001558Srgrimes { MNT_NOSUID, "nosuid" }, 10135105Swosch { MNT_NOSYMFOLLOW, "nosymfollow" }, 1021558Srgrimes { MNT_QUOTA, "with quotas" }, 1031558Srgrimes { MNT_RDONLY, "read-only" }, 1041558Srgrimes { MNT_SYNCHRONOUS, "synchronous" }, 1051558Srgrimes { MNT_UNION, "union" }, 10629890Skato { MNT_NOCLUSTERR, "noclusterr" }, 10729890Skato { MNT_NOCLUSTERW, "noclusterw" }, 10831144Sjulian { MNT_SUIDDIR, "suiddir" }, 10934266Sjulian { MNT_SOFTDEP, "soft-updates" }, 11046619Sjkoshy { 0, NULL } 1111558Srgrimes}; 1121558Srgrimes 11328671Ssteve/* 11428671Ssteve * List of VFS types that can be remounted without becoming mounted on top 11528671Ssteve * of each other. 11628671Ssteve * XXX Is this list correct? 11728671Ssteve */ 11828671Sstevestatic const char * 11928671Ssteveremountable_fs_names[] = { 12069056Sphantom "ufs", "ffs", "ext2fs", 12128671Ssteve 0 12228671Ssteve}; 12328671Ssteve 1241558Srgrimesint 1251558Srgrimesmain(argc, argv) 1261558Srgrimes int argc; 1271558Srgrimes char * const argv[]; 1281558Srgrimes{ 12923678Speter const char *mntfromname, **vfslist, *vfstype; 1301558Srgrimes struct fstab *fs; 1311558Srgrimes struct statfs *mntbuf; 1321558Srgrimes FILE *mountdfp; 1331558Srgrimes pid_t pid; 13452678Sgreen int all, ch, i, init_flags, mntsize, rval, have_fstab; 13595289Smux char *cp, *ep, *options; 1361558Srgrimes 1371558Srgrimes all = init_flags = 0; 1381558Srgrimes options = NULL; 1391558Srgrimes vfslist = NULL; 1401558Srgrimes vfstype = "ufs"; 14123805Sbde while ((ch = getopt(argc, argv, "adfo:prwt:uv")) != -1) 1421558Srgrimes switch (ch) { 1431558Srgrimes case 'a': 1441558Srgrimes all = 1; 1451558Srgrimes break; 1461558Srgrimes case 'd': 1471558Srgrimes debug = 1; 1481558Srgrimes break; 1491558Srgrimes case 'f': 1501558Srgrimes init_flags |= MNT_FORCE; 1511558Srgrimes break; 1521558Srgrimes case 'o': 1531558Srgrimes if (*optarg) 1541558Srgrimes options = catopt(options, optarg); 1551558Srgrimes break; 15623805Sbde case 'p': 15723805Sbde fstab_style = 1; 15823805Sbde verbose = 1; 15923805Sbde break; 1601558Srgrimes case 'r': 16176198Sdd options = catopt(options, "ro"); 1621558Srgrimes break; 1631558Srgrimes case 't': 1641558Srgrimes if (vfslist != NULL) 16537425Scharnier errx(1, "only one -t option may be specified"); 1661558Srgrimes vfslist = makevfslist(optarg); 1671558Srgrimes vfstype = optarg; 1681558Srgrimes break; 1691558Srgrimes case 'u': 1701558Srgrimes init_flags |= MNT_UPDATE; 1711558Srgrimes break; 1721558Srgrimes case 'v': 1731558Srgrimes verbose = 1; 1741558Srgrimes break; 1751558Srgrimes case 'w': 17676198Sdd options = catopt(options, "noro"); 1771558Srgrimes break; 1781558Srgrimes case '?': 1791558Srgrimes default: 1801558Srgrimes usage(); 1811558Srgrimes /* NOTREACHED */ 1821558Srgrimes } 1831558Srgrimes argc -= optind; 1841558Srgrimes argv += optind; 1851558Srgrimes 1861558Srgrimes#define BADTYPE(type) \ 1871558Srgrimes (strcmp(type, FSTAB_RO) && \ 1881558Srgrimes strcmp(type, FSTAB_RW) && strcmp(type, FSTAB_RQ)) 1891558Srgrimes 1901558Srgrimes rval = 0; 1911558Srgrimes switch (argc) { 1921558Srgrimes case 0: 19328671Ssteve if ((mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0) 19428671Ssteve err(1, "getmntinfo"); 19528671Ssteve if (all) { 1961558Srgrimes while ((fs = getfsent()) != NULL) { 1971558Srgrimes if (BADTYPE(fs->fs_type)) 1981558Srgrimes continue; 19923678Speter if (checkvfsname(fs->fs_vfstype, vfslist)) 2001558Srgrimes continue; 20123678Speter if (hasopt(fs->fs_mntops, "noauto")) 20210288Sdg continue; 20344811Sbde if (!(init_flags & MNT_UPDATE) && 20444811Sbde ismounted(fs, mntbuf, mntsize)) 20528671Ssteve continue; 2061558Srgrimes if (mountfs(fs->fs_vfstype, fs->fs_spec, 20723805Sbde fs->fs_file, init_flags, options, 20823805Sbde fs->fs_mntops)) 20923805Sbde rval = 1; 2101558Srgrimes } 21128671Ssteve } else if (fstab_style) { 21217243Sjkh for (i = 0; i < mntsize; i++) { 21323678Speter if (checkvfsname(mntbuf[i].f_fstypename, vfslist)) 21417243Sjkh continue; 21523805Sbde putfsent(&mntbuf[i]); 21617243Sjkh } 21723805Sbde } else { 2181558Srgrimes for (i = 0; i < mntsize; i++) { 21923805Sbde if (checkvfsname(mntbuf[i].f_fstypename, 22023805Sbde vfslist)) 2211558Srgrimes continue; 22223678Speter prmount(&mntbuf[i]); 2231558Srgrimes } 2241558Srgrimes } 2251558Srgrimes exit(rval); 2261558Srgrimes case 1: 2271558Srgrimes if (vfslist != NULL) 2281558Srgrimes usage(); 2291558Srgrimes 2301558Srgrimes if (init_flags & MNT_UPDATE) { 23152678Sgreen mntfromname = NULL; 23252678Sgreen have_fstab = 0; 2331558Srgrimes if ((mntbuf = getmntpt(*argv)) == NULL) 23452678Sgreen errx(1, "not currently mounted %s", *argv); 23552678Sgreen /* 23652678Sgreen * Only get the mntflags from fstab if both mntpoint 23752678Sgreen * and mntspec are identical. Also handle the special 23852678Sgreen * case where just '/' is mounted and 'spec' is not 23952678Sgreen * identical with the one from fstab ('/dev' is missing 24052678Sgreen * in the spec-string at boot-time). 24152678Sgreen */ 24246619Sjkoshy if ((fs = getfsfile(mntbuf->f_mntonname)) != NULL) { 24352678Sgreen if (strcmp(fs->fs_spec, 24452678Sgreen mntbuf->f_mntfromname) == 0 && 24552678Sgreen strcmp(fs->fs_file, 24652678Sgreen mntbuf->f_mntonname) == 0) { 24752678Sgreen have_fstab = 1; 24852678Sgreen mntfromname = mntbuf->f_mntfromname; 24952678Sgreen } else if (argv[0][0] == '/' && 25052678Sgreen argv[0][1] == '\0') { 25152678Sgreen fs = getfsfile("/"); 25252678Sgreen have_fstab = 1; 25352678Sgreen mntfromname = fs->fs_spec; 25452678Sgreen } 25552678Sgreen } 25652678Sgreen if (have_fstab) { 25746619Sjkoshy options = update_options(options, fs->fs_mntops, 25846619Sjkoshy mntbuf->f_flags); 25946619Sjkoshy } else { 26023678Speter mntfromname = mntbuf->f_mntfromname; 26146619Sjkoshy options = update_options(options, NULL, 26246619Sjkoshy mntbuf->f_flags); 26346619Sjkoshy } 26423678Speter rval = mountfs(mntbuf->f_fstypename, mntfromname, 26523678Speter mntbuf->f_mntonname, init_flags, options, 0); 26623678Speter break; 2671558Srgrimes } 26855118Seivind rmslashes(*argv, *argv); 26923678Speter if ((fs = getfsfile(*argv)) == NULL && 27023678Speter (fs = getfsspec(*argv)) == NULL) 27137425Scharnier errx(1, "%s: unknown special file or file system", 27223678Speter *argv); 27323678Speter if (BADTYPE(fs->fs_type)) 27437425Scharnier errx(1, "%s has unknown file system type", 27523678Speter *argv); 27623678Speter rval = mountfs(fs->fs_vfstype, fs->fs_spec, fs->fs_file, 27723678Speter init_flags, options, fs->fs_mntops); 2781558Srgrimes break; 2791558Srgrimes case 2: 2801558Srgrimes /* 28152678Sgreen * If -t flag has not been specified, the path cannot be 28295289Smux * found, spec contains either a ':' or a '@', then assume 28352678Sgreen * that an NFS filesystem is being specified ala Sun. 28495289Smux * Check if the hostname contains only allowed characters 28595289Smux * to reduce false positives. IPv6 addresses containing 28695289Smux * ':' will be correctly parsed only if the separator is '@'. 28795289Smux * The definition of a valid hostname is taken from RFC 1034. 2881558Srgrimes */ 28995289Smux if (vfslist == NULL && ((ep = strchr(argv[0], '@')) != NULL) || 29095289Smux ((ep = strchr(argv[0], ':')) != NULL)) { 29195318Smux if (*ep == '@') { 29295318Smux cp = ep + 1; 29395318Smux ep = cp + strlen(cp); 29495318Smux } else 29595318Smux cp = argv[0]; 29695289Smux while (cp != ep) { 29795289Smux if (!isdigit(*cp) && !isalpha(*cp) && 29895289Smux *cp != '.' && *cp != '-' && *cp != ':') 29995289Smux break; 30095289Smux cp++; 30195289Smux } 30295289Smux if (cp == ep) 30395289Smux vfstype = "nfs"; 30495289Smux } 3051558Srgrimes rval = mountfs(vfstype, 3061558Srgrimes argv[0], argv[1], init_flags, options, NULL); 3071558Srgrimes break; 3081558Srgrimes default: 3091558Srgrimes usage(); 3101558Srgrimes /* NOTREACHED */ 3111558Srgrimes } 3121558Srgrimes 3131558Srgrimes /* 3141558Srgrimes * If the mount was successfully, and done by root, tell mountd the 3151558Srgrimes * good news. Pid checks are probably unnecessary, but don't hurt. 3161558Srgrimes */ 3171558Srgrimes if (rval == 0 && getuid() == 0 && 3181558Srgrimes (mountdfp = fopen(_PATH_MOUNTDPID, "r")) != NULL) { 31928671Ssteve if (fscanf(mountdfp, "%d", &pid) == 1 && 3201558Srgrimes pid > 0 && kill(pid, SIGHUP) == -1 && errno != ESRCH) 3211558Srgrimes err(1, "signal mountd"); 3221558Srgrimes (void)fclose(mountdfp); 3231558Srgrimes } 3241558Srgrimes 3251558Srgrimes exit(rval); 3261558Srgrimes} 3271558Srgrimes 3281558Srgrimesint 32928671Ssteveismounted(fs, mntbuf, mntsize) 33028671Ssteve struct fstab *fs; 33128671Ssteve struct statfs *mntbuf; 33228671Ssteve int mntsize; 33328671Ssteve{ 33428671Ssteve int i; 33528671Ssteve 33628671Ssteve if (fs->fs_file[0] == '/' && fs->fs_file[1] == '\0') 33728671Ssteve /* the root file system can always be remounted */ 33828671Ssteve return (0); 33928671Ssteve 34028671Ssteve for (i = mntsize - 1; i >= 0; --i) 34128671Ssteve if (strcmp(fs->fs_file, mntbuf[i].f_mntonname) == 0 && 34228671Ssteve (!isremountable(fs->fs_vfstype) || 34328671Ssteve strcmp(fs->fs_spec, mntbuf[i].f_mntfromname) == 0)) 34428671Ssteve return (1); 34528671Ssteve return (0); 34628671Ssteve} 34728671Ssteve 34828671Ssteveint 34928671Ssteveisremountable(vfsname) 35028671Ssteve const char *vfsname; 35128671Ssteve{ 35228671Ssteve const char **cp; 35328671Ssteve 35428671Ssteve for (cp = remountable_fs_names; *cp; cp++) 35528671Ssteve if (strcmp(*cp, vfsname) == 0) 35628671Ssteve return (1); 35728671Ssteve return (0); 35828671Ssteve} 35928671Ssteve 36028671Ssteveint 36123678Speterhasopt(mntopts, option) 36223678Speter const char *mntopts, *option; 36323678Speter{ 36423678Speter int negative, found; 36523678Speter char *opt, *optbuf; 36623678Speter 36723678Speter if (option[0] == 'n' && option[1] == 'o') { 36823678Speter negative = 1; 36923678Speter option += 2; 37023678Speter } else 37123678Speter negative = 0; 37223678Speter optbuf = strdup(mntopts); 37323678Speter found = 0; 37423678Speter for (opt = optbuf; (opt = strtok(opt, ",")) != NULL; opt = NULL) { 37523678Speter if (opt[0] == 'n' && opt[1] == 'o') { 37623678Speter if (!strcasecmp(opt + 2, option)) 37723678Speter found = negative; 37823678Speter } else if (!strcasecmp(opt, option)) 37923678Speter found = !negative; 38023678Speter } 38123678Speter free(optbuf); 38223678Speter return (found); 38323678Speter} 38423678Speter 38523678Speterint 3861558Srgrimesmountfs(vfstype, spec, name, flags, options, mntopts) 3871558Srgrimes const char *vfstype, *spec, *name, *options, *mntopts; 3881558Srgrimes int flags; 3891558Srgrimes{ 3901558Srgrimes /* List of directories containing mount_xxx subcommands. */ 3911558Srgrimes static const char *edirs[] = { 3921558Srgrimes _PATH_SBIN, 3931558Srgrimes _PATH_USRSBIN, 3941558Srgrimes NULL 3951558Srgrimes }; 3961558Srgrimes const char *argv[100], **edir; 3971558Srgrimes struct statfs sf; 3981558Srgrimes pid_t pid; 3991558Srgrimes int argc, i, status; 4001558Srgrimes char *optbuf, execname[MAXPATHLEN + 1], mntpath[MAXPATHLEN]; 4011558Srgrimes 40228671Ssteve#if __GNUC__ 40328671Ssteve (void)&optbuf; 40428671Ssteve (void)&name; 40528671Ssteve#endif 40628671Ssteve 40752055Sphk /* resolve the mountpoint with realpath(3) */ 40852055Sphk (void)checkpath(name, mntpath); 4091558Srgrimes name = mntpath; 4101558Srgrimes 41123678Speter if (mntopts == NULL) 41223678Speter mntopts = ""; 4131558Srgrimes if (options == NULL) { 41423678Speter if (*mntopts == '\0') { 4151558Srgrimes options = "rw"; 41623678Speter } else { 4171558Srgrimes options = mntopts; 41823678Speter mntopts = ""; 41923678Speter } 4201558Srgrimes } 4211558Srgrimes optbuf = catopt(strdup(mntopts), options); 4221558Srgrimes 4231558Srgrimes if (strcmp(name, "/") == 0) 4241558Srgrimes flags |= MNT_UPDATE; 4251558Srgrimes if (flags & MNT_FORCE) 4261558Srgrimes optbuf = catopt(optbuf, "force"); 4271558Srgrimes if (flags & MNT_RDONLY) 4281558Srgrimes optbuf = catopt(optbuf, "ro"); 4291558Srgrimes /* 4301558Srgrimes * XXX 4311558Srgrimes * The mount_mfs (newfs) command uses -o to select the 43237425Scharnier * optimization mode. We don't pass the default "-o rw" 4331558Srgrimes * for that reason. 4341558Srgrimes */ 4351558Srgrimes if (flags & MNT_UPDATE) 4361558Srgrimes optbuf = catopt(optbuf, "update"); 4371558Srgrimes 43877577Sru /* Compatibility glue. */ 43977577Sru if (strcmp(vfstype, "msdos") == 0) 44077577Sru vfstype = "msdosfs"; 44177577Sru 4421558Srgrimes argc = 0; 4431558Srgrimes argv[argc++] = vfstype; 4441558Srgrimes mangle(optbuf, &argc, argv); 4451558Srgrimes argv[argc++] = spec; 4461558Srgrimes argv[argc++] = name; 4471558Srgrimes argv[argc] = NULL; 4481558Srgrimes 4491558Srgrimes if (debug) { 4501558Srgrimes (void)printf("exec: mount_%s", vfstype); 4511558Srgrimes for (i = 1; i < argc; i++) 4521558Srgrimes (void)printf(" %s", argv[i]); 4531558Srgrimes (void)printf("\n"); 4541558Srgrimes return (0); 4551558Srgrimes } 4561558Srgrimes 45725120Sache switch (pid = fork()) { 4581558Srgrimes case -1: /* Error. */ 45925120Sache warn("fork"); 4601558Srgrimes free(optbuf); 4611558Srgrimes return (1); 4621558Srgrimes case 0: /* Child. */ 4631558Srgrimes if (strcmp(vfstype, "ufs") == 0) 4641558Srgrimes exit(mount_ufs(argc, (char * const *) argv)); 4651558Srgrimes 4661558Srgrimes /* Go find an executable. */ 46714626Sasami for (edir = edirs; *edir; edir++) { 4681558Srgrimes (void)snprintf(execname, 4691558Srgrimes sizeof(execname), "%s/mount_%s", *edir, vfstype); 4701558Srgrimes execv(execname, (char * const *)argv); 47114626Sasami } 47214626Sasami if (errno == ENOENT) { 47314626Sasami int len = 0; 47414626Sasami char *cp; 47514626Sasami for (edir = edirs; *edir; edir++) 47614626Sasami len += strlen(*edir) + 2; /* ", " */ 47737425Scharnier if ((cp = malloc(len)) == NULL) 47837425Scharnier errx(1, "malloc failed"); 47914626Sasami cp[0] = '\0'; 48014626Sasami for (edir = edirs; *edir; edir++) { 48114626Sasami strcat(cp, *edir); 48214626Sasami if (edir[1] != NULL) 48314626Sasami strcat(cp, ", "); 48414626Sasami } 48514626Sasami warn("exec mount_%s not found in %s", vfstype, cp); 48614626Sasami } 4871558Srgrimes exit(1); 4881558Srgrimes /* NOTREACHED */ 4891558Srgrimes default: /* Parent. */ 4901558Srgrimes free(optbuf); 4911558Srgrimes 4921558Srgrimes if (waitpid(pid, &status, 0) < 0) { 4931558Srgrimes warn("waitpid"); 4941558Srgrimes return (1); 4951558Srgrimes } 4961558Srgrimes 4971558Srgrimes if (WIFEXITED(status)) { 4981558Srgrimes if (WEXITSTATUS(status) != 0) 4991558Srgrimes return (WEXITSTATUS(status)); 5001558Srgrimes } else if (WIFSIGNALED(status)) { 5011558Srgrimes warnx("%s: %s", name, sys_siglist[WTERMSIG(status)]); 5021558Srgrimes return (1); 5031558Srgrimes } 5041558Srgrimes 5051558Srgrimes if (verbose) { 5061558Srgrimes if (statfs(name, &sf) < 0) { 50723678Speter warn("statfs %s", name); 5081558Srgrimes return (1); 5091558Srgrimes } 51017243Sjkh if (fstab_style) 51123805Sbde putfsent(&sf); 51217243Sjkh else 51323678Speter prmount(&sf); 5141558Srgrimes } 5151558Srgrimes break; 5161558Srgrimes } 5171558Srgrimes 5181558Srgrimes return (0); 5191558Srgrimes} 5201558Srgrimes 5211558Srgrimesvoid 52223678Speterprmount(sfp) 52323678Speter struct statfs *sfp; 52423678Speter{ 5251558Srgrimes int flags; 5261558Srgrimes struct opt *o; 52723678Speter struct passwd *pw; 5281558Srgrimes 52952036Sn_hibma (void)printf("%s on %s (%s", sfp->f_mntfromname, sfp->f_mntonname, 53052036Sn_hibma sfp->f_fstypename); 5311558Srgrimes 53223678Speter flags = sfp->f_flags & MNT_VISFLAGMASK; 53352036Sn_hibma for (o = optnames; flags && o->o_opt; o++) 5341558Srgrimes if (flags & o->o_opt) { 53552036Sn_hibma (void)printf(", %s", o->o_name); 5361558Srgrimes flags &= ~o->o_opt; 5371558Srgrimes } 53823678Speter if (sfp->f_owner) { 53952036Sn_hibma (void)printf(", mounted by "); 54023678Speter if ((pw = getpwuid(sfp->f_owner)) != NULL) 54123678Speter (void)printf("%s", pw->pw_name); 54223678Speter else 54323678Speter (void)printf("%d", sfp->f_owner); 54423678Speter } 54565023Ssheldonh if (verbose) { 54665023Ssheldonh if (sfp->f_syncwrites != 0 || sfp->f_asyncwrites != 0) 54765023Ssheldonh (void)printf(", writes: sync %ld async %ld", 54865023Ssheldonh sfp->f_syncwrites, sfp->f_asyncwrites); 54965023Ssheldonh if (sfp->f_syncreads != 0 || sfp->f_asyncreads != 0) 55065023Ssheldonh (void)printf(", reads: sync %ld async %ld", 55165023Ssheldonh sfp->f_syncreads, sfp->f_asyncreads); 55265023Ssheldonh } 55352036Sn_hibma (void)printf(")\n"); 5541558Srgrimes} 5551558Srgrimes 5561558Srgrimesstruct statfs * 5571558Srgrimesgetmntpt(name) 5581558Srgrimes const char *name; 5591558Srgrimes{ 5601558Srgrimes struct statfs *mntbuf; 5611558Srgrimes int i, mntsize; 5621558Srgrimes 5631558Srgrimes mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 56452678Sgreen for (i = mntsize - 1; i >= 0; i--) { 5651558Srgrimes if (strcmp(mntbuf[i].f_mntfromname, name) == 0 || 5661558Srgrimes strcmp(mntbuf[i].f_mntonname, name) == 0) 5671558Srgrimes return (&mntbuf[i]); 56852678Sgreen } 5691558Srgrimes return (NULL); 5701558Srgrimes} 5711558Srgrimes 5721558Srgrimeschar * 5731558Srgrimescatopt(s0, s1) 5741558Srgrimes char *s0; 5751558Srgrimes const char *s1; 5761558Srgrimes{ 5771558Srgrimes size_t i; 5781558Srgrimes char *cp; 5791558Srgrimes 58046619Sjkoshy if (s1 == NULL || *s1 == '\0') 58146619Sjkoshy return s0; 58246619Sjkoshy 5831558Srgrimes if (s0 && *s0) { 5841558Srgrimes i = strlen(s0) + strlen(s1) + 1 + 1; 5851558Srgrimes if ((cp = malloc(i)) == NULL) 58637425Scharnier errx(1, "malloc failed"); 5871558Srgrimes (void)snprintf(cp, i, "%s,%s", s0, s1); 5881558Srgrimes } else 5891558Srgrimes cp = strdup(s1); 5901558Srgrimes 5911558Srgrimes if (s0) 5921558Srgrimes free(s0); 5931558Srgrimes return (cp); 5941558Srgrimes} 5951558Srgrimes 5961558Srgrimesvoid 5971558Srgrimesmangle(options, argcp, argv) 5981558Srgrimes char *options; 5991558Srgrimes int *argcp; 6001558Srgrimes const char **argv; 6011558Srgrimes{ 6021558Srgrimes char *p, *s; 6031558Srgrimes int argc; 6041558Srgrimes 6051558Srgrimes argc = *argcp; 6061558Srgrimes for (s = options; (p = strsep(&s, ",")) != NULL;) 60746619Sjkoshy if (*p != '\0') { 6081558Srgrimes if (*p == '-') { 6091558Srgrimes argv[argc++] = p; 6101558Srgrimes p = strchr(p, '='); 6111558Srgrimes if (p) { 6121558Srgrimes *p = '\0'; 6131558Srgrimes argv[argc++] = p+1; 6141558Srgrimes } 6151558Srgrimes } else if (strcmp(p, "rw") != 0) { 6161558Srgrimes argv[argc++] = "-o"; 6171558Srgrimes argv[argc++] = p; 6181558Srgrimes } 61946619Sjkoshy } 6201558Srgrimes 6211558Srgrimes *argcp = argc; 6221558Srgrimes} 6231558Srgrimes 62446619Sjkoshy 62546619Sjkoshychar * 62646619Sjkoshyupdate_options(opts, fstab, curflags) 62746619Sjkoshy char *opts; 62846619Sjkoshy char *fstab; 62946619Sjkoshy int curflags; 63046619Sjkoshy{ 63146619Sjkoshy char *o, *p; 63246619Sjkoshy char *cur; 63346619Sjkoshy char *expopt, *newopt, *tmpopt; 63446619Sjkoshy 63546619Sjkoshy if (opts == NULL) 63646619Sjkoshy return strdup(""); 63746619Sjkoshy 63846619Sjkoshy /* remove meta options from list */ 63946619Sjkoshy remopt(fstab, MOUNT_META_OPTION_FSTAB); 64046619Sjkoshy remopt(fstab, MOUNT_META_OPTION_CURRENT); 64146619Sjkoshy cur = flags2opts(curflags); 64246619Sjkoshy 64346619Sjkoshy /* 64446619Sjkoshy * Expand all meta-options passed to us first. 64546619Sjkoshy */ 64646619Sjkoshy expopt = NULL; 64746619Sjkoshy for (p = opts; (o = strsep(&p, ",")) != NULL;) { 64846619Sjkoshy if (strcmp(MOUNT_META_OPTION_FSTAB, o) == 0) 64946619Sjkoshy expopt = catopt(expopt, fstab); 65046619Sjkoshy else if (strcmp(MOUNT_META_OPTION_CURRENT, o) == 0) 65146619Sjkoshy expopt = catopt(expopt, cur); 65246619Sjkoshy else 65346619Sjkoshy expopt = catopt(expopt, o); 65446619Sjkoshy } 65546619Sjkoshy free(cur); 65646619Sjkoshy free(opts); 65746619Sjkoshy 65846619Sjkoshy /* 65946619Sjkoshy * Remove previous contradictory arguments. Given option "foo" we 66046619Sjkoshy * remove all the "nofoo" options. Given "nofoo" we remove "nonofoo" 66146619Sjkoshy * and "foo" - so we can deal with possible options like "notice". 66246619Sjkoshy */ 66346619Sjkoshy newopt = NULL; 66446619Sjkoshy for (p = expopt; (o = strsep(&p, ",")) != NULL;) { 66546619Sjkoshy if ((tmpopt = malloc( strlen(o) + 2 + 1 )) == NULL) 66646619Sjkoshy errx(1, "malloc failed"); 66746619Sjkoshy 66846619Sjkoshy strcpy(tmpopt, "no"); 66946619Sjkoshy strcat(tmpopt, o); 67046619Sjkoshy remopt(newopt, tmpopt); 67146619Sjkoshy free(tmpopt); 67246619Sjkoshy 67346619Sjkoshy if (strncmp("no", o, 2) == 0) 67446619Sjkoshy remopt(newopt, o+2); 67546619Sjkoshy 67646619Sjkoshy newopt = catopt(newopt, o); 67746619Sjkoshy } 67846619Sjkoshy free(expopt); 67946619Sjkoshy 68046619Sjkoshy return newopt; 68146619Sjkoshy} 68246619Sjkoshy 6831558Srgrimesvoid 68446619Sjkoshyremopt(string, opt) 68546619Sjkoshy char *string; 68646619Sjkoshy const char *opt; 68746619Sjkoshy{ 68846619Sjkoshy char *o, *p, *r; 68946619Sjkoshy 69046619Sjkoshy if (string == NULL || *string == '\0' || opt == NULL || *opt == '\0') 69146619Sjkoshy return; 69246619Sjkoshy 69346619Sjkoshy r = string; 69446619Sjkoshy 69546619Sjkoshy for (p = string; (o = strsep(&p, ",")) != NULL;) { 69646619Sjkoshy if (strcmp(opt, o) != 0) { 69746619Sjkoshy if (*r == ',' && *o != '\0') 69846619Sjkoshy r++; 69946619Sjkoshy while ((*r++ = *o++) != '\0') 70046619Sjkoshy ; 70146619Sjkoshy *--r = ','; 70246619Sjkoshy } 70346619Sjkoshy } 70446619Sjkoshy *r = '\0'; 70546619Sjkoshy} 70646619Sjkoshy 70746619Sjkoshyvoid 7081558Srgrimesusage() 7091558Srgrimes{ 7101558Srgrimes 71137425Scharnier (void)fprintf(stderr, "%s\n%s\n%s\n", 71237425Scharnier"usage: mount [-dfpruvw] [-o options] [-t ufs | external_type] special node", 71337425Scharnier" mount [-adfpruvw] [-t ufs | external_type]", 71437425Scharnier" mount [-dfpruvw] special | node"); 7151558Srgrimes exit(1); 7161558Srgrimes} 71717243Sjkh 71817243Sjkhvoid 71923805Sbdeputfsent(ent) 72023805Sbde const struct statfs *ent; 72117243Sjkh{ 72223805Sbde struct fstab *fst; 72346619Sjkoshy char *opts; 72446619Sjkoshy 72546619Sjkoshy opts = flags2opts(ent->f_flags); 72623805Sbde printf("%s\t%s\t%s %s", ent->f_mntfromname, ent->f_mntonname, 72746619Sjkoshy ent->f_fstypename, opts); 72846619Sjkoshy free(opts); 72917243Sjkh 73028671Ssteve if ((fst = getfsspec(ent->f_mntfromname))) 73123805Sbde printf("\t%u %u\n", fst->fs_freq, fst->fs_passno); 73228671Ssteve else if ((fst = getfsfile(ent->f_mntonname))) 73323805Sbde printf("\t%u %u\n", fst->fs_freq, fst->fs_passno); 73456038Sgreen else if (strcmp(ent->f_fstypename, "ufs") == 0) { 73556038Sgreen if (strcmp(ent->f_mntonname, "/") == 0) 73656038Sgreen printf("\t1 1\n"); 73756038Sgreen else 73856038Sgreen printf("\t2 2\n"); 73956038Sgreen } else 74023805Sbde printf("\t0 0\n"); 74117243Sjkh} 74246619Sjkoshy 74346619Sjkoshy 74446619Sjkoshychar * 74546619Sjkoshyflags2opts(flags) 74646619Sjkoshy int flags; 74746619Sjkoshy{ 74846619Sjkoshy char *res; 74946619Sjkoshy 75046619Sjkoshy res = NULL; 75146619Sjkoshy 75246619Sjkoshy res = catopt(res, (flags & MNT_RDONLY) ? "ro" : "rw"); 75346619Sjkoshy 75446619Sjkoshy if (flags & MNT_SYNCHRONOUS) res = catopt(res, "sync"); 75546619Sjkoshy if (flags & MNT_NOEXEC) res = catopt(res, "noexec"); 75646619Sjkoshy if (flags & MNT_NOSUID) res = catopt(res, "nosuid"); 75746619Sjkoshy if (flags & MNT_NODEV) res = catopt(res, "nodev"); 75846619Sjkoshy if (flags & MNT_UNION) res = catopt(res, "union"); 75946619Sjkoshy if (flags & MNT_ASYNC) res = catopt(res, "async"); 76046619Sjkoshy if (flags & MNT_NOATIME) res = catopt(res, "noatime"); 76146619Sjkoshy if (flags & MNT_NOCLUSTERR) res = catopt(res, "noclusterr"); 76246619Sjkoshy if (flags & MNT_NOCLUSTERW) res = catopt(res, "noclusterw"); 76346619Sjkoshy if (flags & MNT_NOSYMFOLLOW) res = catopt(res, "nosymfollow"); 76446619Sjkoshy if (flags & MNT_SUIDDIR) res = catopt(res, "suiddir"); 76546619Sjkoshy 76646619Sjkoshy return res; 76746619Sjkoshy} 768