mount.c revision 101205
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 101205 2002-08-02 07:02:51Z rwatson $"; 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" }, 110101205Srwatson { MNT_MULTILABEL, "multilabel" }, 11146619Sjkoshy { 0, NULL } 1121558Srgrimes}; 1131558Srgrimes 11428671Ssteve/* 11528671Ssteve * List of VFS types that can be remounted without becoming mounted on top 11628671Ssteve * of each other. 11728671Ssteve * XXX Is this list correct? 11828671Ssteve */ 11928671Sstevestatic const char * 12028671Ssteveremountable_fs_names[] = { 12169056Sphantom "ufs", "ffs", "ext2fs", 12228671Ssteve 0 12328671Ssteve}; 12428671Ssteve 1251558Srgrimesint 1261558Srgrimesmain(argc, argv) 1271558Srgrimes int argc; 1281558Srgrimes char * const argv[]; 1291558Srgrimes{ 13023678Speter const char *mntfromname, **vfslist, *vfstype; 1311558Srgrimes struct fstab *fs; 1321558Srgrimes struct statfs *mntbuf; 1331558Srgrimes FILE *mountdfp; 1341558Srgrimes pid_t pid; 13552678Sgreen int all, ch, i, init_flags, mntsize, rval, have_fstab; 13695289Smux char *cp, *ep, *options; 1371558Srgrimes 1381558Srgrimes all = init_flags = 0; 1391558Srgrimes options = NULL; 1401558Srgrimes vfslist = NULL; 1411558Srgrimes vfstype = "ufs"; 14223805Sbde while ((ch = getopt(argc, argv, "adfo:prwt:uv")) != -1) 1431558Srgrimes switch (ch) { 1441558Srgrimes case 'a': 1451558Srgrimes all = 1; 1461558Srgrimes break; 1471558Srgrimes case 'd': 1481558Srgrimes debug = 1; 1491558Srgrimes break; 1501558Srgrimes case 'f': 1511558Srgrimes init_flags |= MNT_FORCE; 1521558Srgrimes break; 1531558Srgrimes case 'o': 1541558Srgrimes if (*optarg) 1551558Srgrimes options = catopt(options, optarg); 1561558Srgrimes break; 15723805Sbde case 'p': 15823805Sbde fstab_style = 1; 15923805Sbde verbose = 1; 16023805Sbde break; 1611558Srgrimes case 'r': 16276198Sdd options = catopt(options, "ro"); 1631558Srgrimes break; 1641558Srgrimes case 't': 1651558Srgrimes if (vfslist != NULL) 16637425Scharnier errx(1, "only one -t option may be specified"); 1671558Srgrimes vfslist = makevfslist(optarg); 1681558Srgrimes vfstype = optarg; 1691558Srgrimes break; 1701558Srgrimes case 'u': 1711558Srgrimes init_flags |= MNT_UPDATE; 1721558Srgrimes break; 1731558Srgrimes case 'v': 1741558Srgrimes verbose = 1; 1751558Srgrimes break; 1761558Srgrimes case 'w': 17776198Sdd options = catopt(options, "noro"); 1781558Srgrimes break; 1791558Srgrimes case '?': 1801558Srgrimes default: 1811558Srgrimes usage(); 1821558Srgrimes /* NOTREACHED */ 1831558Srgrimes } 1841558Srgrimes argc -= optind; 1851558Srgrimes argv += optind; 1861558Srgrimes 1871558Srgrimes#define BADTYPE(type) \ 1881558Srgrimes (strcmp(type, FSTAB_RO) && \ 1891558Srgrimes strcmp(type, FSTAB_RW) && strcmp(type, FSTAB_RQ)) 1901558Srgrimes 1911558Srgrimes rval = 0; 1921558Srgrimes switch (argc) { 1931558Srgrimes case 0: 19428671Ssteve if ((mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0) 19528671Ssteve err(1, "getmntinfo"); 19628671Ssteve if (all) { 1971558Srgrimes while ((fs = getfsent()) != NULL) { 1981558Srgrimes if (BADTYPE(fs->fs_type)) 1991558Srgrimes continue; 20023678Speter if (checkvfsname(fs->fs_vfstype, vfslist)) 2011558Srgrimes continue; 20223678Speter if (hasopt(fs->fs_mntops, "noauto")) 20310288Sdg continue; 20444811Sbde if (!(init_flags & MNT_UPDATE) && 20544811Sbde ismounted(fs, mntbuf, mntsize)) 20628671Ssteve continue; 2071558Srgrimes if (mountfs(fs->fs_vfstype, fs->fs_spec, 20823805Sbde fs->fs_file, init_flags, options, 20923805Sbde fs->fs_mntops)) 21023805Sbde rval = 1; 2111558Srgrimes } 21228671Ssteve } else if (fstab_style) { 21317243Sjkh for (i = 0; i < mntsize; i++) { 21423678Speter if (checkvfsname(mntbuf[i].f_fstypename, vfslist)) 21517243Sjkh continue; 21623805Sbde putfsent(&mntbuf[i]); 21717243Sjkh } 21823805Sbde } else { 2191558Srgrimes for (i = 0; i < mntsize; i++) { 22023805Sbde if (checkvfsname(mntbuf[i].f_fstypename, 22123805Sbde vfslist)) 2221558Srgrimes continue; 22323678Speter prmount(&mntbuf[i]); 2241558Srgrimes } 2251558Srgrimes } 2261558Srgrimes exit(rval); 2271558Srgrimes case 1: 2281558Srgrimes if (vfslist != NULL) 2291558Srgrimes usage(); 2301558Srgrimes 2311558Srgrimes if (init_flags & MNT_UPDATE) { 23252678Sgreen mntfromname = NULL; 23352678Sgreen have_fstab = 0; 2341558Srgrimes if ((mntbuf = getmntpt(*argv)) == NULL) 23552678Sgreen errx(1, "not currently mounted %s", *argv); 23652678Sgreen /* 23752678Sgreen * Only get the mntflags from fstab if both mntpoint 23852678Sgreen * and mntspec are identical. Also handle the special 23952678Sgreen * case where just '/' is mounted and 'spec' is not 24052678Sgreen * identical with the one from fstab ('/dev' is missing 24152678Sgreen * in the spec-string at boot-time). 24252678Sgreen */ 24346619Sjkoshy if ((fs = getfsfile(mntbuf->f_mntonname)) != NULL) { 24452678Sgreen if (strcmp(fs->fs_spec, 24552678Sgreen mntbuf->f_mntfromname) == 0 && 24652678Sgreen strcmp(fs->fs_file, 24752678Sgreen mntbuf->f_mntonname) == 0) { 24852678Sgreen have_fstab = 1; 24952678Sgreen mntfromname = mntbuf->f_mntfromname; 25052678Sgreen } else if (argv[0][0] == '/' && 25152678Sgreen argv[0][1] == '\0') { 25252678Sgreen fs = getfsfile("/"); 25352678Sgreen have_fstab = 1; 25452678Sgreen mntfromname = fs->fs_spec; 25552678Sgreen } 25652678Sgreen } 25752678Sgreen if (have_fstab) { 25846619Sjkoshy options = update_options(options, fs->fs_mntops, 25946619Sjkoshy mntbuf->f_flags); 26046619Sjkoshy } else { 26123678Speter mntfromname = mntbuf->f_mntfromname; 26246619Sjkoshy options = update_options(options, NULL, 26346619Sjkoshy mntbuf->f_flags); 26446619Sjkoshy } 26523678Speter rval = mountfs(mntbuf->f_fstypename, mntfromname, 26623678Speter mntbuf->f_mntonname, init_flags, options, 0); 26723678Speter break; 2681558Srgrimes } 26955118Seivind rmslashes(*argv, *argv); 27023678Speter if ((fs = getfsfile(*argv)) == NULL && 27123678Speter (fs = getfsspec(*argv)) == NULL) 27296707Strhodes errx(1, "%s: unknown special file or filesystem", 27323678Speter *argv); 27423678Speter if (BADTYPE(fs->fs_type)) 27596707Strhodes errx(1, "%s has unknown filesystem type", 27623678Speter *argv); 27723678Speter rval = mountfs(fs->fs_vfstype, fs->fs_spec, fs->fs_file, 27823678Speter init_flags, options, fs->fs_mntops); 2791558Srgrimes break; 2801558Srgrimes case 2: 2811558Srgrimes /* 28252678Sgreen * If -t flag has not been specified, the path cannot be 28395289Smux * found, spec contains either a ':' or a '@', then assume 28452678Sgreen * that an NFS filesystem is being specified ala Sun. 28595289Smux * Check if the hostname contains only allowed characters 28695289Smux * to reduce false positives. IPv6 addresses containing 28795289Smux * ':' will be correctly parsed only if the separator is '@'. 28895289Smux * The definition of a valid hostname is taken from RFC 1034. 2891558Srgrimes */ 29095289Smux if (vfslist == NULL && ((ep = strchr(argv[0], '@')) != NULL) || 29195289Smux ((ep = strchr(argv[0], ':')) != NULL)) { 29295318Smux if (*ep == '@') { 29395318Smux cp = ep + 1; 29495318Smux ep = cp + strlen(cp); 29595318Smux } else 29695318Smux cp = argv[0]; 29795289Smux while (cp != ep) { 29895289Smux if (!isdigit(*cp) && !isalpha(*cp) && 29995289Smux *cp != '.' && *cp != '-' && *cp != ':') 30095289Smux break; 30195289Smux cp++; 30295289Smux } 30395289Smux if (cp == ep) 30495289Smux vfstype = "nfs"; 30595289Smux } 3061558Srgrimes rval = mountfs(vfstype, 3071558Srgrimes argv[0], argv[1], init_flags, options, NULL); 3081558Srgrimes break; 3091558Srgrimes default: 3101558Srgrimes usage(); 3111558Srgrimes /* NOTREACHED */ 3121558Srgrimes } 3131558Srgrimes 3141558Srgrimes /* 3151558Srgrimes * If the mount was successfully, and done by root, tell mountd the 3161558Srgrimes * good news. Pid checks are probably unnecessary, but don't hurt. 3171558Srgrimes */ 3181558Srgrimes if (rval == 0 && getuid() == 0 && 3191558Srgrimes (mountdfp = fopen(_PATH_MOUNTDPID, "r")) != NULL) { 32028671Ssteve if (fscanf(mountdfp, "%d", &pid) == 1 && 3211558Srgrimes pid > 0 && kill(pid, SIGHUP) == -1 && errno != ESRCH) 3221558Srgrimes err(1, "signal mountd"); 3231558Srgrimes (void)fclose(mountdfp); 3241558Srgrimes } 3251558Srgrimes 3261558Srgrimes exit(rval); 3271558Srgrimes} 3281558Srgrimes 3291558Srgrimesint 33028671Ssteveismounted(fs, mntbuf, mntsize) 33128671Ssteve struct fstab *fs; 33228671Ssteve struct statfs *mntbuf; 33328671Ssteve int mntsize; 33428671Ssteve{ 33528671Ssteve int i; 33628671Ssteve 33728671Ssteve if (fs->fs_file[0] == '/' && fs->fs_file[1] == '\0') 33896707Strhodes /* the root filesystem can always be remounted */ 33928671Ssteve return (0); 34028671Ssteve 34128671Ssteve for (i = mntsize - 1; i >= 0; --i) 34228671Ssteve if (strcmp(fs->fs_file, mntbuf[i].f_mntonname) == 0 && 34328671Ssteve (!isremountable(fs->fs_vfstype) || 34428671Ssteve strcmp(fs->fs_spec, mntbuf[i].f_mntfromname) == 0)) 34528671Ssteve return (1); 34628671Ssteve return (0); 34728671Ssteve} 34828671Ssteve 34928671Ssteveint 35028671Ssteveisremountable(vfsname) 35128671Ssteve const char *vfsname; 35228671Ssteve{ 35328671Ssteve const char **cp; 35428671Ssteve 35528671Ssteve for (cp = remountable_fs_names; *cp; cp++) 35628671Ssteve if (strcmp(*cp, vfsname) == 0) 35728671Ssteve return (1); 35828671Ssteve return (0); 35928671Ssteve} 36028671Ssteve 36128671Ssteveint 36223678Speterhasopt(mntopts, option) 36323678Speter const char *mntopts, *option; 36423678Speter{ 36523678Speter int negative, found; 36623678Speter char *opt, *optbuf; 36723678Speter 36823678Speter if (option[0] == 'n' && option[1] == 'o') { 36923678Speter negative = 1; 37023678Speter option += 2; 37123678Speter } else 37223678Speter negative = 0; 37323678Speter optbuf = strdup(mntopts); 37423678Speter found = 0; 37523678Speter for (opt = optbuf; (opt = strtok(opt, ",")) != NULL; opt = NULL) { 37623678Speter if (opt[0] == 'n' && opt[1] == 'o') { 37723678Speter if (!strcasecmp(opt + 2, option)) 37823678Speter found = negative; 37923678Speter } else if (!strcasecmp(opt, option)) 38023678Speter found = !negative; 38123678Speter } 38223678Speter free(optbuf); 38323678Speter return (found); 38423678Speter} 38523678Speter 38623678Speterint 3871558Srgrimesmountfs(vfstype, spec, name, flags, options, mntopts) 3881558Srgrimes const char *vfstype, *spec, *name, *options, *mntopts; 3891558Srgrimes int flags; 3901558Srgrimes{ 3911558Srgrimes /* List of directories containing mount_xxx subcommands. */ 3921558Srgrimes static const char *edirs[] = { 3931558Srgrimes _PATH_SBIN, 3941558Srgrimes _PATH_USRSBIN, 3951558Srgrimes NULL 3961558Srgrimes }; 3971558Srgrimes const char *argv[100], **edir; 3981558Srgrimes struct statfs sf; 3991558Srgrimes pid_t pid; 4001558Srgrimes int argc, i, status; 4011558Srgrimes char *optbuf, execname[MAXPATHLEN + 1], mntpath[MAXPATHLEN]; 4021558Srgrimes 40328671Ssteve#if __GNUC__ 40428671Ssteve (void)&optbuf; 40528671Ssteve (void)&name; 40628671Ssteve#endif 40728671Ssteve 40852055Sphk /* resolve the mountpoint with realpath(3) */ 40952055Sphk (void)checkpath(name, mntpath); 4101558Srgrimes name = mntpath; 4111558Srgrimes 41223678Speter if (mntopts == NULL) 41323678Speter mntopts = ""; 4141558Srgrimes if (options == NULL) { 41523678Speter if (*mntopts == '\0') { 4161558Srgrimes options = "rw"; 41723678Speter } else { 4181558Srgrimes options = mntopts; 41923678Speter mntopts = ""; 42023678Speter } 4211558Srgrimes } 4221558Srgrimes optbuf = catopt(strdup(mntopts), options); 4231558Srgrimes 4241558Srgrimes if (strcmp(name, "/") == 0) 4251558Srgrimes flags |= MNT_UPDATE; 4261558Srgrimes if (flags & MNT_FORCE) 4271558Srgrimes optbuf = catopt(optbuf, "force"); 4281558Srgrimes if (flags & MNT_RDONLY) 4291558Srgrimes optbuf = catopt(optbuf, "ro"); 4301558Srgrimes /* 4311558Srgrimes * XXX 4321558Srgrimes * The mount_mfs (newfs) command uses -o to select the 43337425Scharnier * optimization mode. We don't pass the default "-o rw" 4341558Srgrimes * for that reason. 4351558Srgrimes */ 4361558Srgrimes if (flags & MNT_UPDATE) 4371558Srgrimes optbuf = catopt(optbuf, "update"); 4381558Srgrimes 43977577Sru /* Compatibility glue. */ 44077577Sru if (strcmp(vfstype, "msdos") == 0) 44177577Sru vfstype = "msdosfs"; 44277577Sru 4431558Srgrimes argc = 0; 4441558Srgrimes argv[argc++] = vfstype; 4451558Srgrimes mangle(optbuf, &argc, argv); 4461558Srgrimes argv[argc++] = spec; 4471558Srgrimes argv[argc++] = name; 4481558Srgrimes argv[argc] = NULL; 4491558Srgrimes 4501558Srgrimes if (debug) { 4511558Srgrimes (void)printf("exec: mount_%s", vfstype); 4521558Srgrimes for (i = 1; i < argc; i++) 4531558Srgrimes (void)printf(" %s", argv[i]); 4541558Srgrimes (void)printf("\n"); 4551558Srgrimes return (0); 4561558Srgrimes } 4571558Srgrimes 45825120Sache switch (pid = fork()) { 4591558Srgrimes case -1: /* Error. */ 46025120Sache warn("fork"); 4611558Srgrimes free(optbuf); 4621558Srgrimes return (1); 4631558Srgrimes case 0: /* Child. */ 4641558Srgrimes if (strcmp(vfstype, "ufs") == 0) 4651558Srgrimes exit(mount_ufs(argc, (char * const *) argv)); 4661558Srgrimes 4671558Srgrimes /* Go find an executable. */ 46814626Sasami for (edir = edirs; *edir; edir++) { 4691558Srgrimes (void)snprintf(execname, 4701558Srgrimes sizeof(execname), "%s/mount_%s", *edir, vfstype); 4711558Srgrimes execv(execname, (char * const *)argv); 47214626Sasami } 47314626Sasami if (errno == ENOENT) { 47414626Sasami int len = 0; 47514626Sasami char *cp; 47614626Sasami for (edir = edirs; *edir; edir++) 47714626Sasami len += strlen(*edir) + 2; /* ", " */ 47837425Scharnier if ((cp = malloc(len)) == NULL) 47937425Scharnier errx(1, "malloc failed"); 48014626Sasami cp[0] = '\0'; 48114626Sasami for (edir = edirs; *edir; edir++) { 48214626Sasami strcat(cp, *edir); 48314626Sasami if (edir[1] != NULL) 48414626Sasami strcat(cp, ", "); 48514626Sasami } 48614626Sasami warn("exec mount_%s not found in %s", vfstype, cp); 48714626Sasami } 4881558Srgrimes exit(1); 4891558Srgrimes /* NOTREACHED */ 4901558Srgrimes default: /* Parent. */ 4911558Srgrimes free(optbuf); 4921558Srgrimes 4931558Srgrimes if (waitpid(pid, &status, 0) < 0) { 4941558Srgrimes warn("waitpid"); 4951558Srgrimes return (1); 4961558Srgrimes } 4971558Srgrimes 4981558Srgrimes if (WIFEXITED(status)) { 4991558Srgrimes if (WEXITSTATUS(status) != 0) 5001558Srgrimes return (WEXITSTATUS(status)); 5011558Srgrimes } else if (WIFSIGNALED(status)) { 5021558Srgrimes warnx("%s: %s", name, sys_siglist[WTERMSIG(status)]); 5031558Srgrimes return (1); 5041558Srgrimes } 5051558Srgrimes 5061558Srgrimes if (verbose) { 5071558Srgrimes if (statfs(name, &sf) < 0) { 50823678Speter warn("statfs %s", name); 5091558Srgrimes return (1); 5101558Srgrimes } 51117243Sjkh if (fstab_style) 51223805Sbde putfsent(&sf); 51317243Sjkh else 51423678Speter prmount(&sf); 5151558Srgrimes } 5161558Srgrimes break; 5171558Srgrimes } 5181558Srgrimes 5191558Srgrimes return (0); 5201558Srgrimes} 5211558Srgrimes 5221558Srgrimesvoid 52323678Speterprmount(sfp) 52423678Speter struct statfs *sfp; 52523678Speter{ 5261558Srgrimes int flags; 5271558Srgrimes struct opt *o; 52823678Speter struct passwd *pw; 5291558Srgrimes 53052036Sn_hibma (void)printf("%s on %s (%s", sfp->f_mntfromname, sfp->f_mntonname, 53152036Sn_hibma sfp->f_fstypename); 5321558Srgrimes 53323678Speter flags = sfp->f_flags & MNT_VISFLAGMASK; 53452036Sn_hibma for (o = optnames; flags && o->o_opt; o++) 5351558Srgrimes if (flags & o->o_opt) { 53652036Sn_hibma (void)printf(", %s", o->o_name); 5371558Srgrimes flags &= ~o->o_opt; 5381558Srgrimes } 53923678Speter if (sfp->f_owner) { 54052036Sn_hibma (void)printf(", mounted by "); 54123678Speter if ((pw = getpwuid(sfp->f_owner)) != NULL) 54223678Speter (void)printf("%s", pw->pw_name); 54323678Speter else 54423678Speter (void)printf("%d", sfp->f_owner); 54523678Speter } 54665023Ssheldonh if (verbose) { 54765023Ssheldonh if (sfp->f_syncwrites != 0 || sfp->f_asyncwrites != 0) 54865023Ssheldonh (void)printf(", writes: sync %ld async %ld", 54965023Ssheldonh sfp->f_syncwrites, sfp->f_asyncwrites); 55065023Ssheldonh if (sfp->f_syncreads != 0 || sfp->f_asyncreads != 0) 55165023Ssheldonh (void)printf(", reads: sync %ld async %ld", 55265023Ssheldonh sfp->f_syncreads, sfp->f_asyncreads); 55365023Ssheldonh } 55452036Sn_hibma (void)printf(")\n"); 5551558Srgrimes} 5561558Srgrimes 5571558Srgrimesstruct statfs * 5581558Srgrimesgetmntpt(name) 5591558Srgrimes const char *name; 5601558Srgrimes{ 5611558Srgrimes struct statfs *mntbuf; 5621558Srgrimes int i, mntsize; 5631558Srgrimes 5641558Srgrimes mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 56552678Sgreen for (i = mntsize - 1; i >= 0; i--) { 5661558Srgrimes if (strcmp(mntbuf[i].f_mntfromname, name) == 0 || 5671558Srgrimes strcmp(mntbuf[i].f_mntonname, name) == 0) 5681558Srgrimes return (&mntbuf[i]); 56952678Sgreen } 5701558Srgrimes return (NULL); 5711558Srgrimes} 5721558Srgrimes 5731558Srgrimeschar * 5741558Srgrimescatopt(s0, s1) 5751558Srgrimes char *s0; 5761558Srgrimes const char *s1; 5771558Srgrimes{ 5781558Srgrimes size_t i; 5791558Srgrimes char *cp; 5801558Srgrimes 58146619Sjkoshy if (s1 == NULL || *s1 == '\0') 58246619Sjkoshy return s0; 58346619Sjkoshy 5841558Srgrimes if (s0 && *s0) { 5851558Srgrimes i = strlen(s0) + strlen(s1) + 1 + 1; 5861558Srgrimes if ((cp = malloc(i)) == NULL) 58737425Scharnier errx(1, "malloc failed"); 5881558Srgrimes (void)snprintf(cp, i, "%s,%s", s0, s1); 5891558Srgrimes } else 5901558Srgrimes cp = strdup(s1); 5911558Srgrimes 5921558Srgrimes if (s0) 5931558Srgrimes free(s0); 5941558Srgrimes return (cp); 5951558Srgrimes} 5961558Srgrimes 5971558Srgrimesvoid 5981558Srgrimesmangle(options, argcp, argv) 5991558Srgrimes char *options; 6001558Srgrimes int *argcp; 6011558Srgrimes const char **argv; 6021558Srgrimes{ 6031558Srgrimes char *p, *s; 6041558Srgrimes int argc; 6051558Srgrimes 6061558Srgrimes argc = *argcp; 6071558Srgrimes for (s = options; (p = strsep(&s, ",")) != NULL;) 60846619Sjkoshy if (*p != '\0') { 6091558Srgrimes if (*p == '-') { 6101558Srgrimes argv[argc++] = p; 6111558Srgrimes p = strchr(p, '='); 6121558Srgrimes if (p) { 6131558Srgrimes *p = '\0'; 6141558Srgrimes argv[argc++] = p+1; 6151558Srgrimes } 6161558Srgrimes } else if (strcmp(p, "rw") != 0) { 6171558Srgrimes argv[argc++] = "-o"; 6181558Srgrimes argv[argc++] = p; 6191558Srgrimes } 62046619Sjkoshy } 6211558Srgrimes 6221558Srgrimes *argcp = argc; 6231558Srgrimes} 6241558Srgrimes 62546619Sjkoshy 62646619Sjkoshychar * 62746619Sjkoshyupdate_options(opts, fstab, curflags) 62846619Sjkoshy char *opts; 62946619Sjkoshy char *fstab; 63046619Sjkoshy int curflags; 63146619Sjkoshy{ 63246619Sjkoshy char *o, *p; 63346619Sjkoshy char *cur; 63446619Sjkoshy char *expopt, *newopt, *tmpopt; 63546619Sjkoshy 63646619Sjkoshy if (opts == NULL) 63746619Sjkoshy return strdup(""); 63846619Sjkoshy 63946619Sjkoshy /* remove meta options from list */ 64046619Sjkoshy remopt(fstab, MOUNT_META_OPTION_FSTAB); 64146619Sjkoshy remopt(fstab, MOUNT_META_OPTION_CURRENT); 64246619Sjkoshy cur = flags2opts(curflags); 64346619Sjkoshy 64446619Sjkoshy /* 64546619Sjkoshy * Expand all meta-options passed to us first. 64646619Sjkoshy */ 64746619Sjkoshy expopt = NULL; 64846619Sjkoshy for (p = opts; (o = strsep(&p, ",")) != NULL;) { 64946619Sjkoshy if (strcmp(MOUNT_META_OPTION_FSTAB, o) == 0) 65046619Sjkoshy expopt = catopt(expopt, fstab); 65146619Sjkoshy else if (strcmp(MOUNT_META_OPTION_CURRENT, o) == 0) 65246619Sjkoshy expopt = catopt(expopt, cur); 65346619Sjkoshy else 65446619Sjkoshy expopt = catopt(expopt, o); 65546619Sjkoshy } 65646619Sjkoshy free(cur); 65746619Sjkoshy free(opts); 65846619Sjkoshy 65946619Sjkoshy /* 66046619Sjkoshy * Remove previous contradictory arguments. Given option "foo" we 66146619Sjkoshy * remove all the "nofoo" options. Given "nofoo" we remove "nonofoo" 66246619Sjkoshy * and "foo" - so we can deal with possible options like "notice". 66346619Sjkoshy */ 66446619Sjkoshy newopt = NULL; 66546619Sjkoshy for (p = expopt; (o = strsep(&p, ",")) != NULL;) { 66646619Sjkoshy if ((tmpopt = malloc( strlen(o) + 2 + 1 )) == NULL) 66746619Sjkoshy errx(1, "malloc failed"); 66846619Sjkoshy 66946619Sjkoshy strcpy(tmpopt, "no"); 67046619Sjkoshy strcat(tmpopt, o); 67146619Sjkoshy remopt(newopt, tmpopt); 67246619Sjkoshy free(tmpopt); 67346619Sjkoshy 67446619Sjkoshy if (strncmp("no", o, 2) == 0) 67546619Sjkoshy remopt(newopt, o+2); 67646619Sjkoshy 67746619Sjkoshy newopt = catopt(newopt, o); 67846619Sjkoshy } 67946619Sjkoshy free(expopt); 68046619Sjkoshy 68146619Sjkoshy return newopt; 68246619Sjkoshy} 68346619Sjkoshy 6841558Srgrimesvoid 68546619Sjkoshyremopt(string, opt) 68646619Sjkoshy char *string; 68746619Sjkoshy const char *opt; 68846619Sjkoshy{ 68946619Sjkoshy char *o, *p, *r; 69046619Sjkoshy 69146619Sjkoshy if (string == NULL || *string == '\0' || opt == NULL || *opt == '\0') 69246619Sjkoshy return; 69346619Sjkoshy 69446619Sjkoshy r = string; 69546619Sjkoshy 69646619Sjkoshy for (p = string; (o = strsep(&p, ",")) != NULL;) { 69746619Sjkoshy if (strcmp(opt, o) != 0) { 69846619Sjkoshy if (*r == ',' && *o != '\0') 69946619Sjkoshy r++; 70046619Sjkoshy while ((*r++ = *o++) != '\0') 70146619Sjkoshy ; 70246619Sjkoshy *--r = ','; 70346619Sjkoshy } 70446619Sjkoshy } 70546619Sjkoshy *r = '\0'; 70646619Sjkoshy} 70746619Sjkoshy 70846619Sjkoshyvoid 7091558Srgrimesusage() 7101558Srgrimes{ 7111558Srgrimes 71237425Scharnier (void)fprintf(stderr, "%s\n%s\n%s\n", 71337425Scharnier"usage: mount [-dfpruvw] [-o options] [-t ufs | external_type] special node", 71437425Scharnier" mount [-adfpruvw] [-t ufs | external_type]", 71537425Scharnier" mount [-dfpruvw] special | node"); 7161558Srgrimes exit(1); 7171558Srgrimes} 71817243Sjkh 71917243Sjkhvoid 72023805Sbdeputfsent(ent) 72123805Sbde const struct statfs *ent; 72217243Sjkh{ 72323805Sbde struct fstab *fst; 72446619Sjkoshy char *opts; 72546619Sjkoshy 72646619Sjkoshy opts = flags2opts(ent->f_flags); 72723805Sbde printf("%s\t%s\t%s %s", ent->f_mntfromname, ent->f_mntonname, 72846619Sjkoshy ent->f_fstypename, opts); 72946619Sjkoshy free(opts); 73017243Sjkh 73128671Ssteve if ((fst = getfsspec(ent->f_mntfromname))) 73223805Sbde printf("\t%u %u\n", fst->fs_freq, fst->fs_passno); 73328671Ssteve else if ((fst = getfsfile(ent->f_mntonname))) 73423805Sbde printf("\t%u %u\n", fst->fs_freq, fst->fs_passno); 73556038Sgreen else if (strcmp(ent->f_fstypename, "ufs") == 0) { 73656038Sgreen if (strcmp(ent->f_mntonname, "/") == 0) 73756038Sgreen printf("\t1 1\n"); 73856038Sgreen else 73956038Sgreen printf("\t2 2\n"); 74056038Sgreen } else 74123805Sbde printf("\t0 0\n"); 74217243Sjkh} 74346619Sjkoshy 74446619Sjkoshy 74546619Sjkoshychar * 74646619Sjkoshyflags2opts(flags) 74746619Sjkoshy int flags; 74846619Sjkoshy{ 74946619Sjkoshy char *res; 75046619Sjkoshy 75146619Sjkoshy res = NULL; 75246619Sjkoshy 75346619Sjkoshy res = catopt(res, (flags & MNT_RDONLY) ? "ro" : "rw"); 75446619Sjkoshy 75546619Sjkoshy if (flags & MNT_SYNCHRONOUS) res = catopt(res, "sync"); 75646619Sjkoshy if (flags & MNT_NOEXEC) res = catopt(res, "noexec"); 75746619Sjkoshy if (flags & MNT_NOSUID) res = catopt(res, "nosuid"); 75846619Sjkoshy if (flags & MNT_NODEV) res = catopt(res, "nodev"); 75946619Sjkoshy if (flags & MNT_UNION) res = catopt(res, "union"); 76046619Sjkoshy if (flags & MNT_ASYNC) res = catopt(res, "async"); 76146619Sjkoshy if (flags & MNT_NOATIME) res = catopt(res, "noatime"); 76246619Sjkoshy if (flags & MNT_NOCLUSTERR) res = catopt(res, "noclusterr"); 76346619Sjkoshy if (flags & MNT_NOCLUSTERW) res = catopt(res, "noclusterw"); 76446619Sjkoshy if (flags & MNT_NOSYMFOLLOW) res = catopt(res, "nosymfollow"); 76546619Sjkoshy if (flags & MNT_SUIDDIR) res = catopt(res, "suiddir"); 766101205Srwatson if (flags & MNT_MULTILABEL) res = catopt(res, "multilabel"); 76746619Sjkoshy 76846619Sjkoshy return res; 76946619Sjkoshy} 770