mount.c revision 125365
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 125365 2004-02-03 04:03:19Z nectar $"; 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> 57117031Sgordon#include <paths.h> 5823678Speter#include <pwd.h> 591558Srgrimes#include <signal.h> 60123242Siedowse#include <stdint.h> 611558Srgrimes#include <stdio.h> 621558Srgrimes#include <stdlib.h> 631558Srgrimes#include <string.h> 641558Srgrimes#include <unistd.h> 651558Srgrimes 6628671Ssteve#include "extern.h" 6752055Sphk#include "mntopts.h" 681558Srgrimes#include "pathnames.h" 691558Srgrimes 7046619Sjkoshy/* `meta' options */ 7146619Sjkoshy#define MOUNT_META_OPTION_FSTAB "fstab" 7246619Sjkoshy#define MOUNT_META_OPTION_CURRENT "current" 7346619Sjkoshy 7423805Sbdeint debug, fstab_style, verbose; 751558Srgrimes 7692882Simpchar *catopt(char *, const char *); 7792882Simpstruct statfs *getmntpt(const char *); 7892882Simpint hasopt(const char *, const char *); 7992882Simpint ismounted(struct fstab *, struct statfs *, int); 8092882Simpint isremountable(const char *); 8192882Simpvoid mangle(char *, int *, const char **); 8292882Simpchar *update_options(char *, char *, int); 8392882Simpint mountfs(const char *, const char *, const char *, 8492882Simp int, const char *, const char *); 8592882Simpvoid remopt(char *, const char *); 8692882Simpvoid prmount(struct statfs *); 8792882Simpvoid putfsent(const struct statfs *); 8892882Simpvoid usage(void); 8992882Simpchar *flags2opts(int); 901558Srgrimes 9137425Scharnier/* Map from mount options to printable formats. */ 921558Srgrimesstatic struct opt { 931558Srgrimes int o_opt; 941558Srgrimes const char *o_name; 951558Srgrimes} optnames[] = { 961558Srgrimes { MNT_ASYNC, "asynchronous" }, 971558Srgrimes { MNT_EXPORTED, "NFS exported" }, 981558Srgrimes { MNT_LOCAL, "local" }, 9918007Sdg { MNT_NOATIME, "noatime" }, 1001558Srgrimes { MNT_NODEV, "nodev" }, 1011558Srgrimes { MNT_NOEXEC, "noexec" }, 1021558Srgrimes { MNT_NOSUID, "nosuid" }, 10335105Swosch { MNT_NOSYMFOLLOW, "nosymfollow" }, 1041558Srgrimes { MNT_QUOTA, "with quotas" }, 1051558Srgrimes { MNT_RDONLY, "read-only" }, 1061558Srgrimes { MNT_SYNCHRONOUS, "synchronous" }, 1071558Srgrimes { MNT_UNION, "union" }, 10829890Skato { MNT_NOCLUSTERR, "noclusterr" }, 10929890Skato { MNT_NOCLUSTERW, "noclusterw" }, 11031144Sjulian { MNT_SUIDDIR, "suiddir" }, 11134266Sjulian { MNT_SOFTDEP, "soft-updates" }, 112101205Srwatson { MNT_MULTILABEL, "multilabel" }, 113105118Srwatson { MNT_ACLS, "acls" }, 11446619Sjkoshy { 0, NULL } 1151558Srgrimes}; 1161558Srgrimes 11728671Ssteve/* 11828671Ssteve * List of VFS types that can be remounted without becoming mounted on top 11928671Ssteve * of each other. 12028671Ssteve * XXX Is this list correct? 12128671Ssteve */ 12228671Sstevestatic const char * 12328671Ssteveremountable_fs_names[] = { 12469056Sphantom "ufs", "ffs", "ext2fs", 12528671Ssteve 0 12628671Ssteve}; 12728671Ssteve 1281558Srgrimesint 1291558Srgrimesmain(argc, argv) 1301558Srgrimes int argc; 1311558Srgrimes char * const argv[]; 1321558Srgrimes{ 13323678Speter const char *mntfromname, **vfslist, *vfstype; 1341558Srgrimes struct fstab *fs; 1351558Srgrimes struct statfs *mntbuf; 1361558Srgrimes FILE *mountdfp; 1371558Srgrimes pid_t pid; 13852678Sgreen int all, ch, i, init_flags, mntsize, rval, have_fstab; 13995289Smux char *cp, *ep, *options; 1401558Srgrimes 1411558Srgrimes all = init_flags = 0; 1421558Srgrimes options = NULL; 1431558Srgrimes vfslist = NULL; 1441558Srgrimes vfstype = "ufs"; 145113220Smdodd while ((ch = getopt(argc, argv, "adF:fo:prwt:uv")) != -1) 1461558Srgrimes switch (ch) { 1471558Srgrimes case 'a': 1481558Srgrimes all = 1; 1491558Srgrimes break; 1501558Srgrimes case 'd': 1511558Srgrimes debug = 1; 1521558Srgrimes break; 153113220Smdodd case 'F': 154113220Smdodd setfstab(optarg); 155113220Smdodd break; 1561558Srgrimes case 'f': 1571558Srgrimes init_flags |= MNT_FORCE; 1581558Srgrimes break; 1591558Srgrimes case 'o': 1601558Srgrimes if (*optarg) 1611558Srgrimes options = catopt(options, optarg); 1621558Srgrimes break; 16323805Sbde case 'p': 16423805Sbde fstab_style = 1; 16523805Sbde verbose = 1; 16623805Sbde break; 1671558Srgrimes case 'r': 16876198Sdd options = catopt(options, "ro"); 1691558Srgrimes break; 1701558Srgrimes case 't': 1711558Srgrimes if (vfslist != NULL) 17237425Scharnier errx(1, "only one -t option may be specified"); 1731558Srgrimes vfslist = makevfslist(optarg); 1741558Srgrimes vfstype = optarg; 1751558Srgrimes break; 1761558Srgrimes case 'u': 1771558Srgrimes init_flags |= MNT_UPDATE; 1781558Srgrimes break; 1791558Srgrimes case 'v': 1801558Srgrimes verbose = 1; 1811558Srgrimes break; 1821558Srgrimes case 'w': 18376198Sdd options = catopt(options, "noro"); 1841558Srgrimes break; 1851558Srgrimes case '?': 1861558Srgrimes default: 1871558Srgrimes usage(); 1881558Srgrimes /* NOTREACHED */ 1891558Srgrimes } 1901558Srgrimes argc -= optind; 1911558Srgrimes argv += optind; 1921558Srgrimes 1931558Srgrimes#define BADTYPE(type) \ 1941558Srgrimes (strcmp(type, FSTAB_RO) && \ 1951558Srgrimes strcmp(type, FSTAB_RW) && strcmp(type, FSTAB_RQ)) 1961558Srgrimes 1971558Srgrimes rval = 0; 1981558Srgrimes switch (argc) { 1991558Srgrimes case 0: 20028671Ssteve if ((mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0) 20128671Ssteve err(1, "getmntinfo"); 20228671Ssteve if (all) { 2031558Srgrimes while ((fs = getfsent()) != NULL) { 2041558Srgrimes if (BADTYPE(fs->fs_type)) 2051558Srgrimes continue; 20623678Speter if (checkvfsname(fs->fs_vfstype, vfslist)) 2071558Srgrimes continue; 20823678Speter if (hasopt(fs->fs_mntops, "noauto")) 20910288Sdg continue; 21044811Sbde if (!(init_flags & MNT_UPDATE) && 21144811Sbde ismounted(fs, mntbuf, mntsize)) 21228671Ssteve continue; 213125194Sguido options = update_options(options, fs->fs_mntops, 214125194Sguido mntbuf->f_flags); 2151558Srgrimes if (mountfs(fs->fs_vfstype, fs->fs_spec, 21623805Sbde fs->fs_file, init_flags, options, 21723805Sbde fs->fs_mntops)) 21823805Sbde rval = 1; 2191558Srgrimes } 22028671Ssteve } else if (fstab_style) { 22117243Sjkh for (i = 0; i < mntsize; i++) { 22223678Speter if (checkvfsname(mntbuf[i].f_fstypename, vfslist)) 22317243Sjkh continue; 22423805Sbde putfsent(&mntbuf[i]); 22517243Sjkh } 22623805Sbde } else { 2271558Srgrimes for (i = 0; i < mntsize; i++) { 22823805Sbde if (checkvfsname(mntbuf[i].f_fstypename, 22923805Sbde vfslist)) 2301558Srgrimes continue; 23123678Speter prmount(&mntbuf[i]); 2321558Srgrimes } 2331558Srgrimes } 2341558Srgrimes exit(rval); 2351558Srgrimes case 1: 2361558Srgrimes if (vfslist != NULL) 2371558Srgrimes usage(); 2381558Srgrimes 239124201Sanholt rmslashes(*argv, *argv); 2401558Srgrimes if (init_flags & MNT_UPDATE) { 24152678Sgreen mntfromname = NULL; 24252678Sgreen have_fstab = 0; 2431558Srgrimes if ((mntbuf = getmntpt(*argv)) == NULL) 24452678Sgreen errx(1, "not currently mounted %s", *argv); 24552678Sgreen /* 24652678Sgreen * Only get the mntflags from fstab if both mntpoint 24752678Sgreen * and mntspec are identical. Also handle the special 24852678Sgreen * case where just '/' is mounted and 'spec' is not 24952678Sgreen * identical with the one from fstab ('/dev' is missing 25052678Sgreen * in the spec-string at boot-time). 25152678Sgreen */ 25246619Sjkoshy if ((fs = getfsfile(mntbuf->f_mntonname)) != NULL) { 25352678Sgreen if (strcmp(fs->fs_spec, 25452678Sgreen mntbuf->f_mntfromname) == 0 && 25552678Sgreen strcmp(fs->fs_file, 25652678Sgreen mntbuf->f_mntonname) == 0) { 25752678Sgreen have_fstab = 1; 25852678Sgreen mntfromname = mntbuf->f_mntfromname; 25952678Sgreen } else if (argv[0][0] == '/' && 26052678Sgreen argv[0][1] == '\0') { 26152678Sgreen fs = getfsfile("/"); 26252678Sgreen have_fstab = 1; 26352678Sgreen mntfromname = fs->fs_spec; 26452678Sgreen } 26552678Sgreen } 26652678Sgreen if (have_fstab) { 26746619Sjkoshy options = update_options(options, fs->fs_mntops, 26846619Sjkoshy mntbuf->f_flags); 26946619Sjkoshy } else { 27023678Speter mntfromname = mntbuf->f_mntfromname; 27146619Sjkoshy options = update_options(options, NULL, 27246619Sjkoshy mntbuf->f_flags); 27346619Sjkoshy } 27423678Speter rval = mountfs(mntbuf->f_fstypename, mntfromname, 27523678Speter mntbuf->f_mntonname, init_flags, options, 0); 27623678Speter break; 2771558Srgrimes } 27823678Speter if ((fs = getfsfile(*argv)) == NULL && 27923678Speter (fs = getfsspec(*argv)) == NULL) 280102231Strhodes errx(1, "%s: unknown special file or file system", 28123678Speter *argv); 28223678Speter if (BADTYPE(fs->fs_type)) 283102231Strhodes errx(1, "%s has unknown file system type", 28423678Speter *argv); 28523678Speter rval = mountfs(fs->fs_vfstype, fs->fs_spec, fs->fs_file, 28623678Speter init_flags, options, fs->fs_mntops); 2871558Srgrimes break; 2881558Srgrimes case 2: 2891558Srgrimes /* 29052678Sgreen * If -t flag has not been specified, the path cannot be 29195289Smux * found, spec contains either a ':' or a '@', then assume 292102231Strhodes * that an NFS file system is being specified ala Sun. 29395289Smux * Check if the hostname contains only allowed characters 29495289Smux * to reduce false positives. IPv6 addresses containing 29595289Smux * ':' will be correctly parsed only if the separator is '@'. 29695289Smux * The definition of a valid hostname is taken from RFC 1034. 2971558Srgrimes */ 298123162Siedowse if (vfslist == NULL && ((ep = strchr(argv[0], '@')) != NULL || 299123162Siedowse (ep = strchr(argv[0], ':')) != NULL)) { 30095318Smux if (*ep == '@') { 30195318Smux cp = ep + 1; 30295318Smux ep = cp + strlen(cp); 30395318Smux } else 30495318Smux cp = argv[0]; 30595289Smux while (cp != ep) { 30695289Smux if (!isdigit(*cp) && !isalpha(*cp) && 30795289Smux *cp != '.' && *cp != '-' && *cp != ':') 30895289Smux break; 30995289Smux cp++; 31095289Smux } 31195289Smux if (cp == ep) 31295289Smux vfstype = "nfs"; 31395289Smux } 3141558Srgrimes rval = mountfs(vfstype, 3151558Srgrimes argv[0], argv[1], init_flags, options, NULL); 3161558Srgrimes break; 3171558Srgrimes default: 3181558Srgrimes usage(); 3191558Srgrimes /* NOTREACHED */ 3201558Srgrimes } 3211558Srgrimes 3221558Srgrimes /* 3231558Srgrimes * If the mount was successfully, and done by root, tell mountd the 3241558Srgrimes * good news. Pid checks are probably unnecessary, but don't hurt. 3251558Srgrimes */ 3261558Srgrimes if (rval == 0 && getuid() == 0 && 3271558Srgrimes (mountdfp = fopen(_PATH_MOUNTDPID, "r")) != NULL) { 32828671Ssteve if (fscanf(mountdfp, "%d", &pid) == 1 && 3291558Srgrimes pid > 0 && kill(pid, SIGHUP) == -1 && errno != ESRCH) 3301558Srgrimes err(1, "signal mountd"); 3311558Srgrimes (void)fclose(mountdfp); 3321558Srgrimes } 3331558Srgrimes 3341558Srgrimes exit(rval); 3351558Srgrimes} 3361558Srgrimes 3371558Srgrimesint 33828671Ssteveismounted(fs, mntbuf, mntsize) 33928671Ssteve struct fstab *fs; 34028671Ssteve struct statfs *mntbuf; 34128671Ssteve int mntsize; 34228671Ssteve{ 34328671Ssteve int i; 34428671Ssteve 34528671Ssteve if (fs->fs_file[0] == '/' && fs->fs_file[1] == '\0') 346102231Strhodes /* the root file system can always be remounted */ 34728671Ssteve return (0); 34828671Ssteve 34928671Ssteve for (i = mntsize - 1; i >= 0; --i) 35028671Ssteve if (strcmp(fs->fs_file, mntbuf[i].f_mntonname) == 0 && 35128671Ssteve (!isremountable(fs->fs_vfstype) || 35228671Ssteve strcmp(fs->fs_spec, mntbuf[i].f_mntfromname) == 0)) 35328671Ssteve return (1); 35428671Ssteve return (0); 35528671Ssteve} 35628671Ssteve 35728671Ssteveint 35828671Ssteveisremountable(vfsname) 35928671Ssteve const char *vfsname; 36028671Ssteve{ 36128671Ssteve const char **cp; 36228671Ssteve 36328671Ssteve for (cp = remountable_fs_names; *cp; cp++) 36428671Ssteve if (strcmp(*cp, vfsname) == 0) 36528671Ssteve return (1); 36628671Ssteve return (0); 36728671Ssteve} 36828671Ssteve 36928671Ssteveint 37023678Speterhasopt(mntopts, option) 37123678Speter const char *mntopts, *option; 37223678Speter{ 37323678Speter int negative, found; 37423678Speter char *opt, *optbuf; 37523678Speter 37623678Speter if (option[0] == 'n' && option[1] == 'o') { 37723678Speter negative = 1; 37823678Speter option += 2; 37923678Speter } else 38023678Speter negative = 0; 38123678Speter optbuf = strdup(mntopts); 38223678Speter found = 0; 38323678Speter for (opt = optbuf; (opt = strtok(opt, ",")) != NULL; opt = NULL) { 38423678Speter if (opt[0] == 'n' && opt[1] == 'o') { 38523678Speter if (!strcasecmp(opt + 2, option)) 38623678Speter found = negative; 38723678Speter } else if (!strcasecmp(opt, option)) 38823678Speter found = !negative; 38923678Speter } 39023678Speter free(optbuf); 39123678Speter return (found); 39223678Speter} 39323678Speter 39423678Speterint 3951558Srgrimesmountfs(vfstype, spec, name, flags, options, mntopts) 3961558Srgrimes const char *vfstype, *spec, *name, *options, *mntopts; 3971558Srgrimes int flags; 3981558Srgrimes{ 399123162Siedowse const char *argv[100]; 4001558Srgrimes struct statfs sf; 4011558Srgrimes pid_t pid; 4021558Srgrimes int argc, i, status; 403118580Simp char *optbuf, execname[PATH_MAX], mntpath[PATH_MAX]; 4041558Srgrimes 40528671Ssteve#if __GNUC__ 40628671Ssteve (void)&optbuf; 40728671Ssteve (void)&name; 40828671Ssteve#endif 40928671Ssteve 41052055Sphk /* resolve the mountpoint with realpath(3) */ 41152055Sphk (void)checkpath(name, mntpath); 4121558Srgrimes name = mntpath; 4131558Srgrimes 41423678Speter if (mntopts == NULL) 41523678Speter mntopts = ""; 4161558Srgrimes if (options == NULL) { 41723678Speter if (*mntopts == '\0') { 4181558Srgrimes options = "rw"; 41923678Speter } else { 4201558Srgrimes options = mntopts; 42123678Speter mntopts = ""; 42223678Speter } 4231558Srgrimes } 4241558Srgrimes optbuf = catopt(strdup(mntopts), options); 4251558Srgrimes 4261558Srgrimes if (strcmp(name, "/") == 0) 4271558Srgrimes flags |= MNT_UPDATE; 4281558Srgrimes if (flags & MNT_FORCE) 4291558Srgrimes optbuf = catopt(optbuf, "force"); 4301558Srgrimes if (flags & MNT_RDONLY) 4311558Srgrimes optbuf = catopt(optbuf, "ro"); 4321558Srgrimes /* 4331558Srgrimes * XXX 4341558Srgrimes * The mount_mfs (newfs) command uses -o to select the 43537425Scharnier * optimization mode. We don't pass the default "-o rw" 4361558Srgrimes * for that reason. 4371558Srgrimes */ 4381558Srgrimes if (flags & MNT_UPDATE) 4391558Srgrimes optbuf = catopt(optbuf, "update"); 4401558Srgrimes 44177577Sru /* Compatibility glue. */ 44277577Sru if (strcmp(vfstype, "msdos") == 0) 44377577Sru vfstype = "msdosfs"; 44477577Sru 4451558Srgrimes argc = 0; 4461558Srgrimes argv[argc++] = vfstype; 4471558Srgrimes mangle(optbuf, &argc, argv); 4481558Srgrimes argv[argc++] = spec; 4491558Srgrimes argv[argc++] = name; 4501558Srgrimes argv[argc] = NULL; 4511558Srgrimes 4521558Srgrimes if (debug) { 4531558Srgrimes (void)printf("exec: mount_%s", vfstype); 4541558Srgrimes for (i = 1; i < argc; i++) 4551558Srgrimes (void)printf(" %s", argv[i]); 4561558Srgrimes (void)printf("\n"); 4571558Srgrimes return (0); 4581558Srgrimes } 4591558Srgrimes 46025120Sache switch (pid = fork()) { 4611558Srgrimes case -1: /* Error. */ 46225120Sache warn("fork"); 4631558Srgrimes free(optbuf); 4641558Srgrimes return (1); 4651558Srgrimes case 0: /* Child. */ 4661558Srgrimes if (strcmp(vfstype, "ufs") == 0) 4671558Srgrimes exit(mount_ufs(argc, (char * const *) argv)); 4681558Srgrimes 4691558Srgrimes /* Go find an executable. */ 470117031Sgordon (void)snprintf(execname, sizeof(execname), "mount_%s", vfstype); 471117031Sgordon execvP(execname, _PATH_SYSPATH, (char * const *)argv); 47214626Sasami if (errno == ENOENT) { 473123162Siedowse warn("exec mount_%s not found in %s", vfstype, 474123162Siedowse _PATH_SYSPATH); 47514626Sasami } 4761558Srgrimes exit(1); 4771558Srgrimes /* NOTREACHED */ 4781558Srgrimes default: /* Parent. */ 4791558Srgrimes free(optbuf); 4801558Srgrimes 4811558Srgrimes if (waitpid(pid, &status, 0) < 0) { 4821558Srgrimes warn("waitpid"); 4831558Srgrimes return (1); 4841558Srgrimes } 4851558Srgrimes 4861558Srgrimes if (WIFEXITED(status)) { 4871558Srgrimes if (WEXITSTATUS(status) != 0) 4881558Srgrimes return (WEXITSTATUS(status)); 4891558Srgrimes } else if (WIFSIGNALED(status)) { 4901558Srgrimes warnx("%s: %s", name, sys_siglist[WTERMSIG(status)]); 4911558Srgrimes return (1); 4921558Srgrimes } 4931558Srgrimes 4941558Srgrimes if (verbose) { 4951558Srgrimes if (statfs(name, &sf) < 0) { 49623678Speter warn("statfs %s", name); 4971558Srgrimes return (1); 4981558Srgrimes } 49917243Sjkh if (fstab_style) 50023805Sbde putfsent(&sf); 50117243Sjkh else 50223678Speter prmount(&sf); 5031558Srgrimes } 5041558Srgrimes break; 5051558Srgrimes } 5061558Srgrimes 5071558Srgrimes return (0); 5081558Srgrimes} 5091558Srgrimes 5101558Srgrimesvoid 51123678Speterprmount(sfp) 51223678Speter struct statfs *sfp; 51323678Speter{ 514117742Siedowse int flags, i; 5151558Srgrimes struct opt *o; 51623678Speter struct passwd *pw; 5171558Srgrimes 51852036Sn_hibma (void)printf("%s on %s (%s", sfp->f_mntfromname, sfp->f_mntonname, 51952036Sn_hibma sfp->f_fstypename); 5201558Srgrimes 52123678Speter flags = sfp->f_flags & MNT_VISFLAGMASK; 52252036Sn_hibma for (o = optnames; flags && o->o_opt; o++) 5231558Srgrimes if (flags & o->o_opt) { 52452036Sn_hibma (void)printf(", %s", o->o_name); 5251558Srgrimes flags &= ~o->o_opt; 5261558Srgrimes } 527125339Spjd /* 528125339Spjd * Inform when file system is mounted by an unprivileged user 529125339Spjd * or privileged non-root user. 530125339Spjd */ 531125365Snectar if ((flags & MNT_USER) != 0 || sfp->f_owner != 0) { 53252036Sn_hibma (void)printf(", mounted by "); 53323678Speter if ((pw = getpwuid(sfp->f_owner)) != NULL) 53423678Speter (void)printf("%s", pw->pw_name); 53523678Speter else 53623678Speter (void)printf("%d", sfp->f_owner); 53723678Speter } 53865023Ssheldonh if (verbose) { 53965023Ssheldonh if (sfp->f_syncwrites != 0 || sfp->f_asyncwrites != 0) 540123242Siedowse (void)printf(", writes: sync %ju async %ju", 541123242Siedowse (uintmax_t)sfp->f_syncwrites, 542123242Siedowse (uintmax_t)sfp->f_asyncwrites); 54365023Ssheldonh if (sfp->f_syncreads != 0 || sfp->f_asyncreads != 0) 544123242Siedowse (void)printf(", reads: sync %ju async %ju", 545123242Siedowse (uintmax_t)sfp->f_syncreads, 546123242Siedowse (uintmax_t)sfp->f_asyncreads); 547123162Siedowse if (sfp->f_fsid.val[0] != 0 || sfp->f_fsid.val[1] != 0) { 548123162Siedowse printf(", fsid "); 549123162Siedowse for (i = 0; i < sizeof(sfp->f_fsid); i++) 550123162Siedowse printf("%02x", ((u_char *)&sfp->f_fsid)[i]); 551123162Siedowse } 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, '='); 611123268Strhodes if (p != NULL) { 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", 713125200Sguido" mount [-adfpruvw] [ -F fstab] [-o options] [-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"); 765101205Srwatson if (flags & MNT_MULTILABEL) res = catopt(res, "multilabel"); 766105118Srwatson if (flags & MNT_ACLS) res = catopt(res, "acls"); 76746619Sjkoshy 76846619Sjkoshy return res; 76946619Sjkoshy} 770