Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 2 | /* |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 3 | * Mini mount implementation for busybox |
| 4 | * |
Eric Andersen | c499601 | 1999-10-20 22:08:37 +0000 | [diff] [blame] | 5 | * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>. |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | * |
| 21 | * 3/21/1999 Charles P. Wright <cpwright@cpwright.com> |
| 22 | * searches through fstab when -a is passed |
| 23 | * will try mounting stuff with all fses when passed -t auto |
| 24 | * |
| 25 | * 1999-04-17 Dave Cinege...Rewrote -t auto. Fixed ro mtab. |
Eric Andersen | c499601 | 1999-10-20 22:08:37 +0000 | [diff] [blame] | 26 | * |
| 27 | * 1999-10-07 Erik Andersen <andersen@lineo.com>, <andersee@debian.org>. |
Erik Andersen | 3163821 | 2000-01-15 22:28:50 +0000 | [diff] [blame] | 28 | * Rewrite of a lot of code. Removed mtab usage (I plan on |
Eric Andersen | c499601 | 1999-10-20 22:08:37 +0000 | [diff] [blame] | 29 | * putting it back as a compile-time option some time), |
| 30 | * major adjustments to option parsing, and some serious |
| 31 | * dieting all around. |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 32 | * |
Erik Andersen | 3163821 | 2000-01-15 22:28:50 +0000 | [diff] [blame] | 33 | * 1999-11-06 mtab suppport is back - andersee |
| 34 | * |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 35 | * 2000-01-12 Ben Collins <bcollins@debian.org>, Borrowed utils-linux's |
| 36 | * mount to add loop support. |
| 37 | */ |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 38 | |
| 39 | #include "internal.h" |
| 40 | #include <stdlib.h> |
| 41 | #include <unistd.h> |
| 42 | #include <errno.h> |
| 43 | #include <string.h> |
| 44 | #include <stdio.h> |
| 45 | #include <mntent.h> |
| 46 | #include <sys/mount.h> |
| 47 | #include <ctype.h> |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 48 | #include <fstab.h> |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 49 | |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 50 | #if defined BB_FEATURE_MOUNT_LOOP |
| 51 | #include <fcntl.h> |
| 52 | #include <sys/ioctl.h> |
| 53 | #include <linux/loop.h> |
| 54 | |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 55 | |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 56 | static int use_loop = FALSE; |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 57 | #endif |
| 58 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 59 | extern const char mtab_file[]; /* Defined in utility.c */ |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 60 | |
Eric Andersen | d73dc5b | 1999-11-10 23:13:02 +0000 | [diff] [blame] | 61 | static const char mount_usage[] = "\tmount [flags]\n" |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 62 | "\tmount [flags] device directory [-o options,more-options]\n" |
| 63 | "\n" "Flags:\n" "\t-a:\tMount all file systems in fstab.\n" |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 64 | #ifdef BB_MTAB |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 65 | "\t-f:\t\"Fake\" mount. Add entry to mount table but don't mount it.\n" |
| 66 | "\t-n:\tDon't write a mount table entry.\n" |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 67 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 68 | "\t-o option:\tOne of many filesystem options, listed below.\n" |
| 69 | "\t-r:\tMount the filesystem read-only.\n" |
| 70 | "\t-t filesystem-type:\tSpecify the filesystem type.\n" |
| 71 | "\t-w:\tMount for reading and writing (default).\n" |
| 72 | "\n" |
| 73 | "Options for use with the \"-o\" flag:\n" |
| 74 | "\tasync / sync:\tWrites are asynchronous / synchronous.\n" |
| 75 | "\tdev / nodev:\tAllow use of special device files / disallow them.\n" |
| 76 | "\texec / noexec:\tAllow use of executable files / disallow them.\n" |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 77 | #if defined BB_FEATURE_MOUNT_LOOP |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 78 | "\tloop: Mounts a file via loop device.\n" |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 79 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 80 | "\tsuid / nosuid:\tAllow set-user-id-root programs / disallow them.\n" |
| 81 | "\tremount: Re-mount a currently-mounted filesystem, changing its flags.\n" |
| 82 | "\tro / rw: Mount for read-only / read-write.\n" |
| 83 | "\t" |
| 84 | |
| 85 | "There are EVEN MORE flags that are specific to each filesystem.\n" |
| 86 | "You'll have to see the written documentation for those.\n"; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 87 | |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 88 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 89 | struct mount_options { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 90 | const char *name; |
| 91 | unsigned long and; |
| 92 | unsigned long or; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 93 | }; |
| 94 | |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 95 | static const struct mount_options mount_options[] = { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 96 | {"async", ~MS_SYNCHRONOUS, 0}, |
| 97 | {"defaults", ~0, 0}, |
| 98 | {"dev", ~MS_NODEV, 0}, |
| 99 | {"exec", ~MS_NOEXEC, 0}, |
| 100 | {"nodev", ~0, MS_NODEV}, |
| 101 | {"noexec", ~0, MS_NOEXEC}, |
| 102 | {"nosuid", ~0, MS_NOSUID}, |
| 103 | {"remount", ~0, MS_REMOUNT}, |
| 104 | {"ro", ~0, MS_RDONLY}, |
| 105 | {"rw", ~MS_RDONLY, 0}, |
| 106 | {"suid", ~MS_NOSUID, 0}, |
| 107 | {"sync", ~0, MS_SYNCHRONOUS}, |
| 108 | {0, 0, 0} |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 109 | }; |
| 110 | |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 111 | static int |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 112 | do_mount(char *specialfile, char *dir, char *filesystemtype, |
| 113 | long flags, void *string_flags, int useMtab, int fakeIt, |
| 114 | char *mtab_opts) |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 115 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 116 | int status = 0; |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 117 | char *lofile = NULL; |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 118 | |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 119 | #if defined BB_MTAB |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 120 | if (fakeIt == FALSE) |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 121 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 122 | { |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 123 | #if defined BB_FEATURE_MOUNT_LOOP |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 124 | if (use_loop==TRUE) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 125 | int loro = flags & MS_RDONLY; |
| 126 | char *lofile = specialfile; |
| 127 | |
| 128 | specialfile = find_unused_loop_device(); |
| 129 | if (specialfile == NULL) { |
| 130 | fprintf(stderr, "Could not find a spare loop device\n"); |
| 131 | return (FALSE); |
| 132 | } |
| 133 | if (set_loop(specialfile, lofile, 0, &loro)) { |
| 134 | fprintf(stderr, "Could not setup loop device\n"); |
| 135 | return (FALSE); |
| 136 | } |
| 137 | if (!(flags & MS_RDONLY) && loro) { /* loop is ro, but wanted rw */ |
| 138 | fprintf(stderr, "WARNING: loop device is read-only\n"); |
| 139 | flags &= ~MS_RDONLY; |
| 140 | } |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 141 | use_loop = FALSE; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 142 | } |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 143 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 144 | status = |
| 145 | mount(specialfile, dir, filesystemtype, flags, string_flags); |
| 146 | } |
Erik Andersen | 5cbdd71 | 2000-01-26 20:06:48 +0000 | [diff] [blame] | 147 | |
| 148 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 149 | /* If the mount was sucessful, do anything needed, then return TRUE */ |
| 150 | if (status == 0) { |
Erik Andersen | 5cbdd71 | 2000-01-26 20:06:48 +0000 | [diff] [blame] | 151 | |
| 152 | #if defined BB_MTAB |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 153 | if (useMtab == TRUE) { |
| 154 | write_mtab(specialfile, dir, filesystemtype, flags, mtab_opts); |
| 155 | } |
| 156 | #endif |
| 157 | return (TRUE); |
| 158 | } |
| 159 | |
| 160 | /* Bummer. mount failed. Clean up */ |
| 161 | #if defined BB_FEATURE_MOUNT_LOOP |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 162 | if (lofile != NULL) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 163 | del_loop(specialfile); |
Erik Andersen | 5cbdd71 | 2000-01-26 20:06:48 +0000 | [diff] [blame] | 164 | } |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 165 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 166 | return (FALSE); |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 167 | } |
| 168 | |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 169 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 170 | |
Eric Andersen | 8341a15 | 1999-10-08 17:14:14 +0000 | [diff] [blame] | 171 | /* Seperate standard mount options from the nonstandard string options */ |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 172 | static void |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 173 | parse_mount_options(char *options, unsigned long *flags, char *strflags) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 174 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 175 | while (options) { |
| 176 | int gotone = FALSE; |
| 177 | char *comma = strchr(options, ','); |
| 178 | const struct mount_options *f = mount_options; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 179 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 180 | if (comma) |
| 181 | *comma = '\0'; |
Eric Andersen | 3ae0c78 | 1999-11-04 01:13:21 +0000 | [diff] [blame] | 182 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 183 | while (f->name != 0) { |
| 184 | if (strcasecmp(f->name, options) == 0) { |
| 185 | |
| 186 | *flags &= f->and; |
| 187 | *flags |= f->or; |
| 188 | gotone = TRUE; |
| 189 | break; |
| 190 | } |
| 191 | f++; |
| 192 | } |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 193 | #if defined BB_FEATURE_MOUNT_LOOP |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 194 | if (gotone == FALSE && !strcasecmp("loop", options)) { /* loop device support */ |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 195 | use_loop = TRUE; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 196 | gotone = TRUE; |
| 197 | } |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 198 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 199 | if (*strflags && strflags != '\0' && gotone == FALSE) { |
| 200 | char *temp = strflags; |
| 201 | |
| 202 | temp += strlen(strflags); |
| 203 | *temp++ = ','; |
| 204 | *temp++ = '\0'; |
| 205 | } |
| 206 | if (gotone == FALSE) |
| 207 | strcat(strflags, options); |
| 208 | if (comma) { |
| 209 | *comma = ','; |
| 210 | options = ++comma; |
| 211 | } else { |
| 212 | break; |
| 213 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 214 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 215 | } |
| 216 | |
| 217 | int |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 218 | mount_one(char *blockDevice, char *directory, char *filesystemType, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 219 | unsigned long flags, char *string_flags, int useMtab, int fakeIt, |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 220 | char *mtab_opts, int whineOnErrors) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 221 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 222 | int status = 0; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 223 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 224 | char buf[255]; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 225 | |
Eric Andersen | 0ecb54a | 1999-12-05 23:24:55 +0000 | [diff] [blame] | 226 | #if defined BB_FEATURE_USE_PROCFS |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 227 | if (strcmp(filesystemType, "auto") == 0) { |
| 228 | FILE *f = fopen("/proc/filesystems", "r"); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 229 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 230 | if (f == NULL) |
| 231 | return (FALSE); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 232 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 233 | while (fgets(buf, sizeof(buf), f) != NULL) { |
| 234 | filesystemType = buf; |
| 235 | if (*filesystemType == '\t') { // Not a nodev filesystem |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 236 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 237 | // Add NULL termination to each line |
| 238 | while (*filesystemType && *filesystemType != '\n') |
| 239 | filesystemType++; |
| 240 | *filesystemType = '\0'; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 241 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 242 | filesystemType = buf; |
| 243 | filesystemType++; // hop past tab |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 244 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 245 | status = do_mount(blockDevice, directory, filesystemType, |
| 246 | flags | MS_MGC_VAL, string_flags, |
| 247 | useMtab, fakeIt, mtab_opts); |
| 248 | if (status == TRUE) |
| 249 | break; |
| 250 | } |
| 251 | } |
| 252 | fclose(f); |
| 253 | } else |
Eric Andersen | 0ecb54a | 1999-12-05 23:24:55 +0000 | [diff] [blame] | 254 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 255 | { |
| 256 | status = do_mount(blockDevice, directory, filesystemType, |
| 257 | flags | MS_MGC_VAL, string_flags, useMtab, |
| 258 | fakeIt, mtab_opts); |
| 259 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 260 | |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 261 | if (status == FALSE && whineOnErrors == TRUE) { |
| 262 | if (whineOnErrors == TRUE) { |
| 263 | fprintf(stderr, "Mounting %s on %s failed: %s\n", |
| 264 | blockDevice, directory, strerror(errno)); |
| 265 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 266 | return (FALSE); |
| 267 | } |
| 268 | return (TRUE); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 269 | } |
| 270 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 271 | extern int mount_main(int argc, char **argv) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 272 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 273 | char string_flags_buf[1024] = ""; |
| 274 | char *string_flags = string_flags_buf; |
| 275 | char *extra_opts = string_flags_buf; |
| 276 | unsigned long flags = 0; |
| 277 | char *filesystemType = "auto"; |
| 278 | char *device = NULL; |
| 279 | char *directory = NULL; |
| 280 | int all = FALSE; |
| 281 | int fakeIt = FALSE; |
| 282 | int useMtab = TRUE; |
| 283 | int i; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 284 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 285 | /* Only compiled in if BB_MTAB is not defined */ |
| 286 | whine_if_fstab_is_missing(); |
Eric Andersen | cb6e256 | 1999-10-16 15:48:40 +0000 | [diff] [blame] | 287 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 288 | if (argc == 1) { |
| 289 | FILE *mountTable = setmntent(mtab_file, "r"); |
| 290 | |
| 291 | if (mountTable) { |
| 292 | struct mntent *m; |
| 293 | |
| 294 | while ((m = getmntent(mountTable)) != 0) { |
| 295 | struct fstab *fstabItem; |
| 296 | char *blockDevice = m->mnt_fsname; |
| 297 | |
| 298 | /* Note that if /etc/fstab is missing, libc can't fix up /dev/root for us */ |
| 299 | if (strcmp(blockDevice, "/dev/root") == 0) { |
| 300 | fstabItem = getfsfile("/"); |
| 301 | if (fstabItem != NULL) |
| 302 | blockDevice = fstabItem->fs_spec; |
| 303 | } |
| 304 | printf("%s on %s type %s (%s)\n", blockDevice, m->mnt_dir, |
| 305 | m->mnt_type, m->mnt_opts); |
| 306 | } |
| 307 | endmntent(mountTable); |
| 308 | } else { |
| 309 | perror(mtab_file); |
Eric Andersen | cb6e256 | 1999-10-16 15:48:40 +0000 | [diff] [blame] | 310 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 311 | exit(TRUE); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 312 | } |
| 313 | |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 314 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 315 | /* Parse options */ |
| 316 | i = --argc; |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 317 | argv++; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 318 | while (i > 0 && **argv) { |
| 319 | if (**argv == '-') { |
| 320 | char *opt = *argv; |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 321 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 322 | while (i > 0 && *++opt) |
| 323 | switch (*opt) { |
| 324 | case 'o': |
| 325 | if (--i == 0) { |
| 326 | goto goodbye; |
| 327 | } |
| 328 | parse_mount_options(*(++argv), &flags, string_flags); |
| 329 | break; |
| 330 | case 'r': |
| 331 | flags |= MS_RDONLY; |
| 332 | break; |
| 333 | case 't': |
| 334 | if (--i == 0) { |
| 335 | goto goodbye; |
| 336 | } |
| 337 | filesystemType = *(++argv); |
| 338 | break; |
| 339 | case 'w': |
| 340 | flags &= ~MS_RDONLY; |
| 341 | break; |
| 342 | case 'a': |
| 343 | all = TRUE; |
| 344 | break; |
| 345 | #ifdef BB_MTAB |
| 346 | case 'f': |
| 347 | fakeIt = TRUE; |
| 348 | break; |
| 349 | case 'n': |
| 350 | useMtab = FALSE; |
| 351 | break; |
Eric Andersen | a9c95ea | 1999-11-15 17:33:30 +0000 | [diff] [blame] | 352 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 353 | case 'v': |
| 354 | case 'h': |
| 355 | case '-': |
| 356 | goto goodbye; |
| 357 | } |
| 358 | } else { |
| 359 | if (device == NULL) |
| 360 | device = *argv; |
| 361 | else if (directory == NULL) |
| 362 | directory = *argv; |
| 363 | else { |
| 364 | goto goodbye; |
| 365 | } |
| 366 | } |
| 367 | i--; |
| 368 | argv++; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 369 | } |
Eric Andersen | d73dc5b | 1999-11-10 23:13:02 +0000 | [diff] [blame] | 370 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 371 | if (all == TRUE) { |
| 372 | struct mntent *m; |
| 373 | FILE *f = setmntent("/etc/fstab", "r"); |
| 374 | |
| 375 | if (f == NULL) { |
| 376 | perror("/etc/fstab"); |
| 377 | exit(FALSE); |
| 378 | } |
| 379 | while ((m = getmntent(f)) != NULL) { |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 380 | // If the file system isn't noauto, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 381 | // and isn't swap or nfs, then mount it |
| 382 | if ((!strstr(m->mnt_opts, "noauto")) && |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 383 | (!strstr(m->mnt_type, "swap")) && |
| 384 | (!strstr(m->mnt_type, "nfs"))) { |
| 385 | flags = 0; |
| 386 | *string_flags = '\0'; |
| 387 | parse_mount_options(m->mnt_opts, &flags, string_flags); |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 388 | /* If the directory is /, try to remount |
| 389 | * with the options specified in fstab */ |
| 390 | if (m->mnt_dir[0] == '/' && m->mnt_dir[1] == '\0') { |
| 391 | flags |= MS_REMOUNT; |
| 392 | } |
| 393 | if (mount_one(m->mnt_fsname, m->mnt_dir, m->mnt_type, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 394 | flags, string_flags, useMtab, fakeIt, |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 395 | extra_opts, FALSE)) |
| 396 | { |
| 397 | /* Try again, but this time try a remount */ |
| 398 | mount_one(m->mnt_fsname, m->mnt_dir, m->mnt_type, |
| 399 | flags|MS_REMOUNT, string_flags, useMtab, fakeIt, |
| 400 | extra_opts, TRUE); |
| 401 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 402 | } |
| 403 | } |
| 404 | endmntent(f); |
| 405 | } else { |
| 406 | if (device && directory) { |
| 407 | #ifdef BB_NFSMOUNT |
| 408 | if (strcmp(filesystemType, "nfs") == 0) { |
| 409 | if (nfsmount |
| 410 | (device, directory, &flags, &extra_opts, &string_flags, |
| 411 | 1) != 0) |
| 412 | exit(FALSE); |
| 413 | } |
| 414 | #endif |
| 415 | exit(mount_one(device, directory, filesystemType, |
| 416 | flags, string_flags, useMtab, fakeIt, |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 417 | extra_opts, TRUE)); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 418 | } else { |
| 419 | goto goodbye; |
| 420 | } |
| 421 | } |
| 422 | exit(TRUE); |
| 423 | |
| 424 | goodbye: |
| 425 | usage(mount_usage); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 426 | } |