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. |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 37 | * |
| 38 | * 2000-04-30 Dave Cinege <dcinege@psychosis.com> |
| 39 | * Rewrote fstab while loop and lower mount section. Can now do |
| 40 | * single mounts from fstab. Can override fstab options for single |
| 41 | * mount. Common mount_one call for single mounts and 'all'. Fixed |
| 42 | * mtab updating and stale entries. Removed 'remount' default. |
| 43 | * |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 44 | */ |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 45 | |
Matt Kraai | 3425111 | 2001-05-02 21:17:38 +0000 | [diff] [blame^] | 46 | #include <limits.h> |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 47 | #include <stdlib.h> |
| 48 | #include <unistd.h> |
| 49 | #include <errno.h> |
| 50 | #include <string.h> |
| 51 | #include <stdio.h> |
| 52 | #include <mntent.h> |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 53 | #include <ctype.h> |
Eric Andersen | cbe31da | 2001-02-20 06:14:08 +0000 | [diff] [blame] | 54 | #include "busybox.h" |
Mark Whitley | 4b541a8 | 2001-04-25 17:10:30 +0000 | [diff] [blame] | 55 | #if defined BB_FEATURE_USE_DEVPS_PATCH |
| 56 | # include <linux/devmtab.h> /* For Erik's nifty devmtab device driver */ |
| 57 | #endif |
Eric Andersen | bd22ed8 | 2000-07-08 18:55:24 +0000 | [diff] [blame] | 58 | |
Mark Whitley | 59ab025 | 2001-01-23 22:30:04 +0000 | [diff] [blame] | 59 | enum { |
| 60 | MS_MGC_VAL = 0xc0ed0000, /* Magic number indicatng "new" flags */ |
| 61 | MS_RDONLY = 1, /* Mount read-only */ |
| 62 | MS_NOSUID = 2, /* Ignore suid and sgid bits */ |
| 63 | MS_NODEV = 4, /* Disallow access to device special files */ |
| 64 | MS_NOEXEC = 8, /* Disallow program execution */ |
| 65 | MS_SYNCHRONOUS = 16, /* Writes are synced at once */ |
| 66 | MS_REMOUNT = 32, /* Alter flags of a mounted FS */ |
| 67 | MS_MANDLOCK = 64, /* Allow mandatory locks on an FS */ |
| 68 | S_QUOTA = 128, /* Quota initialized for file/directory/symlink */ |
| 69 | S_APPEND = 256, /* Append-only file */ |
| 70 | S_IMMUTABLE = 512, /* Immutable file */ |
| 71 | MS_NOATIME = 1024, /* Do not update access times. */ |
| 72 | MS_NODIRATIME = 2048, /* Do not update directory access times */ |
| 73 | }; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 74 | |
Eric Andersen | bd22ed8 | 2000-07-08 18:55:24 +0000 | [diff] [blame] | 75 | |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 76 | #if defined BB_FEATURE_MOUNT_LOOP |
| 77 | #include <fcntl.h> |
| 78 | #include <sys/ioctl.h> |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 79 | static int use_loop = FALSE; |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 80 | #endif |
| 81 | |
Eric Andersen | a57ba4d | 2000-07-08 19:20:49 +0000 | [diff] [blame] | 82 | extern int mount (__const char *__special_file, __const char *__dir, |
| 83 | __const char *__fstype, unsigned long int __rwflag, |
| 84 | __const void *__data); |
| 85 | extern int umount (__const char *__special_file); |
| 86 | extern int umount2 (__const char *__special_file, int __flags); |
Eric Andersen | de44067 | 2001-03-01 07:55:49 +0000 | [diff] [blame] | 87 | |
Eric Andersen | e76c3b0 | 2001-04-05 03:14:39 +0000 | [diff] [blame] | 88 | extern int sysfs( int option, unsigned int fs_index, char * buf); |
Eric Andersen | a57ba4d | 2000-07-08 19:20:49 +0000 | [diff] [blame] | 89 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 90 | extern const char mtab_file[]; /* Defined in utility.c */ |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 91 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 92 | struct mount_options { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 93 | const char *name; |
| 94 | unsigned long and; |
| 95 | unsigned long or; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 96 | }; |
| 97 | |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 98 | static const struct mount_options mount_options[] = { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 99 | {"async", ~MS_SYNCHRONOUS, 0}, |
Erik Andersen | 6c5f2c6 | 2000-05-05 19:49:33 +0000 | [diff] [blame] | 100 | {"atime", ~0, ~MS_NOATIME}, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 101 | {"defaults", ~0, 0}, |
| 102 | {"dev", ~MS_NODEV, 0}, |
Erik Andersen | 6c5f2c6 | 2000-05-05 19:49:33 +0000 | [diff] [blame] | 103 | {"diratime", ~0, ~MS_NODIRATIME}, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 104 | {"exec", ~MS_NOEXEC, 0}, |
Erik Andersen | 6c5f2c6 | 2000-05-05 19:49:33 +0000 | [diff] [blame] | 105 | {"noatime", ~0, MS_NOATIME}, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 106 | {"nodev", ~0, MS_NODEV}, |
Erik Andersen | 6c5f2c6 | 2000-05-05 19:49:33 +0000 | [diff] [blame] | 107 | {"nodiratime", ~0, MS_NODIRATIME}, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 108 | {"noexec", ~0, MS_NOEXEC}, |
| 109 | {"nosuid", ~0, MS_NOSUID}, |
| 110 | {"remount", ~0, MS_REMOUNT}, |
| 111 | {"ro", ~0, MS_RDONLY}, |
| 112 | {"rw", ~MS_RDONLY, 0}, |
| 113 | {"suid", ~MS_NOSUID, 0}, |
| 114 | {"sync", ~0, MS_SYNCHRONOUS}, |
| 115 | {0, 0, 0} |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 116 | }; |
| 117 | |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 118 | static int |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 119 | do_mount(char *specialfile, char *dir, char *filesystemtype, |
| 120 | long flags, void *string_flags, int useMtab, int fakeIt, |
| 121 | char *mtab_opts) |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 122 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 123 | int status = 0; |
Eric Andersen | 8847b9a | 2000-09-21 01:33:05 +0000 | [diff] [blame] | 124 | #if defined BB_FEATURE_MOUNT_LOOP |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 125 | char *lofile = NULL; |
Eric Andersen | 8847b9a | 2000-09-21 01:33:05 +0000 | [diff] [blame] | 126 | #endif |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 127 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 128 | if (fakeIt == FALSE) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 129 | { |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 130 | #if defined BB_FEATURE_MOUNT_LOOP |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 131 | if (use_loop==TRUE) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 132 | int loro = flags & MS_RDONLY; |
Mark Whitley | e677dfe | 2001-02-26 17:45:58 +0000 | [diff] [blame] | 133 | |
| 134 | lofile = specialfile; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 135 | |
| 136 | specialfile = find_unused_loop_device(); |
| 137 | if (specialfile == NULL) { |
Matt Kraai | dd19c69 | 2001-01-31 19:00:21 +0000 | [diff] [blame] | 138 | error_msg_and_die("Could not find a spare loop device"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 139 | } |
| 140 | if (set_loop(specialfile, lofile, 0, &loro)) { |
Matt Kraai | dd19c69 | 2001-01-31 19:00:21 +0000 | [diff] [blame] | 141 | error_msg_and_die("Could not setup loop device"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 142 | } |
| 143 | if (!(flags & MS_RDONLY) && loro) { /* loop is ro, but wanted rw */ |
Matt Kraai | dd19c69 | 2001-01-31 19:00:21 +0000 | [diff] [blame] | 144 | error_msg("WARNING: loop device is read-only"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 145 | flags &= ~MS_RDONLY; |
| 146 | } |
| 147 | } |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 148 | #endif |
Eric Andersen | a42982e | 2000-06-07 17:28:53 +0000 | [diff] [blame] | 149 | status = mount(specialfile, dir, filesystemtype, flags, string_flags); |
Eric Andersen | 0cccdfa | 2000-09-20 06:23:36 +0000 | [diff] [blame] | 150 | if (errno == EROFS) { |
Matt Kraai | dd19c69 | 2001-01-31 19:00:21 +0000 | [diff] [blame] | 151 | error_msg("%s is write-protected, mounting read-only", specialfile); |
Eric Andersen | 0cccdfa | 2000-09-20 06:23:36 +0000 | [diff] [blame] | 152 | status = mount(specialfile, dir, filesystemtype, flags |= MS_RDONLY, string_flags); |
| 153 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 154 | } |
Erik Andersen | 5cbdd71 | 2000-01-26 20:06:48 +0000 | [diff] [blame] | 155 | |
| 156 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 157 | /* If the mount was sucessful, do anything needed, then return TRUE */ |
Eric Andersen | 0c8e2a6 | 2000-08-02 18:56:25 +0000 | [diff] [blame] | 158 | if (status == 0 || fakeIt==TRUE) { |
Erik Andersen | 5cbdd71 | 2000-01-26 20:06:48 +0000 | [diff] [blame] | 159 | |
Eric Andersen | c4cef5a | 2001-04-01 16:01:11 +0000 | [diff] [blame] | 160 | #if defined BB_FEATURE_MTAB_SUPPORT |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 161 | if (useMtab == TRUE) { |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 162 | erase_mtab(specialfile); // Clean any stale entries |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 163 | write_mtab(specialfile, dir, filesystemtype, flags, mtab_opts); |
| 164 | } |
| 165 | #endif |
| 166 | return (TRUE); |
| 167 | } |
| 168 | |
| 169 | /* Bummer. mount failed. Clean up */ |
| 170 | #if defined BB_FEATURE_MOUNT_LOOP |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 171 | if (lofile != NULL) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 172 | del_loop(specialfile); |
Erik Andersen | 5cbdd71 | 2000-01-26 20:06:48 +0000 | [diff] [blame] | 173 | } |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 174 | #endif |
Eric Andersen | a42982e | 2000-06-07 17:28:53 +0000 | [diff] [blame] | 175 | |
| 176 | if (errno == EPERM) { |
Matt Kraai | dd19c69 | 2001-01-31 19:00:21 +0000 | [diff] [blame] | 177 | error_msg_and_die("permission denied. Are you root?"); |
Eric Andersen | a42982e | 2000-06-07 17:28:53 +0000 | [diff] [blame] | 178 | } |
| 179 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 180 | return (FALSE); |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 181 | } |
| 182 | |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 183 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 184 | |
Eric Andersen | 8341a15 | 1999-10-08 17:14:14 +0000 | [diff] [blame] | 185 | /* Seperate standard mount options from the nonstandard string options */ |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 186 | static void |
Eric Andersen | e7413a9 | 2000-07-14 06:19:41 +0000 | [diff] [blame] | 187 | parse_mount_options(char *options, int *flags, char *strflags) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 188 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 189 | while (options) { |
| 190 | int gotone = FALSE; |
| 191 | char *comma = strchr(options, ','); |
| 192 | const struct mount_options *f = mount_options; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 193 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 194 | if (comma) |
| 195 | *comma = '\0'; |
Eric Andersen | 3ae0c78 | 1999-11-04 01:13:21 +0000 | [diff] [blame] | 196 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 197 | while (f->name != 0) { |
| 198 | if (strcasecmp(f->name, options) == 0) { |
| 199 | |
| 200 | *flags &= f->and; |
| 201 | *flags |= f->or; |
| 202 | gotone = TRUE; |
| 203 | break; |
| 204 | } |
| 205 | f++; |
| 206 | } |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 207 | #if defined BB_FEATURE_MOUNT_LOOP |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 208 | if (gotone == FALSE && !strcasecmp("loop", options)) { /* loop device support */ |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 209 | use_loop = TRUE; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 210 | gotone = TRUE; |
| 211 | } |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 212 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 213 | if (*strflags && strflags != '\0' && gotone == FALSE) { |
| 214 | char *temp = strflags; |
| 215 | |
| 216 | temp += strlen(strflags); |
| 217 | *temp++ = ','; |
| 218 | *temp++ = '\0'; |
| 219 | } |
| 220 | if (gotone == FALSE) |
| 221 | strcat(strflags, options); |
| 222 | if (comma) { |
| 223 | *comma = ','; |
| 224 | options = ++comma; |
| 225 | } else { |
| 226 | break; |
| 227 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 228 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 229 | } |
| 230 | |
Glenn L McGrath | 1e117b4 | 2001-03-30 01:28:13 +0000 | [diff] [blame] | 231 | extern int |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 232 | mount_one(char *blockDevice, char *directory, char *filesystemType, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 233 | unsigned long flags, char *string_flags, int useMtab, int fakeIt, |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 234 | char *mtab_opts, int whineOnErrors) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 235 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 236 | int status = 0; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 237 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 238 | if (strcmp(filesystemType, "auto") == 0) { |
Glenn L McGrath | 1e117b4 | 2001-03-30 01:28:13 +0000 | [diff] [blame] | 239 | static const char *noauto_array[] = { "tmpfs", "shm", "proc", "ramfs", "devpts", "devfs", 0 }; |
| 240 | const char **noauto_fstype; |
Eric Andersen | 7b91f02 | 2001-03-01 07:50:04 +0000 | [diff] [blame] | 241 | const int num_of_filesystems = sysfs(3, 0, 0); |
| 242 | char buf[255]; |
Glenn L McGrath | 323434b | 2001-03-02 22:21:34 +0000 | [diff] [blame] | 243 | int i=0; |
| 244 | |
Eric Andersen | 7b91f02 | 2001-03-01 07:50:04 +0000 | [diff] [blame] | 245 | filesystemType=buf; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 246 | |
Eric Andersen | 7b91f02 | 2001-03-01 07:50:04 +0000 | [diff] [blame] | 247 | while(i < num_of_filesystems) { |
| 248 | sysfs(2, i++, filesystemType); |
Glenn L McGrath | 1e117b4 | 2001-03-30 01:28:13 +0000 | [diff] [blame] | 249 | for (noauto_fstype = noauto_array; *noauto_fstype; noauto_fstype++) { |
| 250 | if (!strcmp(filesystemType, *noauto_fstype)) { |
Glenn L McGrath | 323434b | 2001-03-02 22:21:34 +0000 | [diff] [blame] | 251 | break; |
| 252 | } |
| 253 | } |
Glenn L McGrath | 1e117b4 | 2001-03-30 01:28:13 +0000 | [diff] [blame] | 254 | if (!*noauto_fstype) { |
Glenn L McGrath | 323434b | 2001-03-02 22:21:34 +0000 | [diff] [blame] | 255 | status = do_mount(blockDevice, directory, filesystemType, |
Eric Andersen | 7b91f02 | 2001-03-01 07:50:04 +0000 | [diff] [blame] | 256 | flags | MS_MGC_VAL, string_flags, |
| 257 | useMtab, fakeIt, mtab_opts); |
Glenn L McGrath | 323434b | 2001-03-02 22:21:34 +0000 | [diff] [blame] | 258 | if (status == TRUE) |
| 259 | break; |
| 260 | } |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 261 | } |
Eric Andersen | 7b91f02 | 2001-03-01 07:50:04 +0000 | [diff] [blame] | 262 | } else { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 263 | status = do_mount(blockDevice, directory, filesystemType, |
Eric Andersen | 7b91f02 | 2001-03-01 07:50:04 +0000 | [diff] [blame] | 264 | flags | MS_MGC_VAL, string_flags, useMtab, |
| 265 | fakeIt, mtab_opts); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 266 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 267 | |
Eric Andersen | a42982e | 2000-06-07 17:28:53 +0000 | [diff] [blame] | 268 | if (status == FALSE) { |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 269 | if (whineOnErrors == TRUE) { |
Matt Kraai | 1fa1ade | 2000-12-18 03:57:16 +0000 | [diff] [blame] | 270 | perror_msg("Mounting %s on %s failed", blockDevice, directory); |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 271 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 272 | return (FALSE); |
| 273 | } |
| 274 | return (TRUE); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 275 | } |
| 276 | |
Matt Kraai | 1240082 | 2001-04-17 04:32:50 +0000 | [diff] [blame] | 277 | void show_mounts() |
| 278 | { |
| 279 | #if defined BB_FEATURE_USE_DEVPS_PATCH |
| 280 | int fd, i, numfilesystems; |
| 281 | char device[] = "/dev/mtab"; |
| 282 | struct k_mntent *mntentlist; |
| 283 | |
| 284 | /* open device */ |
| 285 | fd = open(device, O_RDONLY); |
| 286 | if (fd < 0) |
| 287 | perror_msg_and_die("open failed for `%s'", device); |
| 288 | |
| 289 | /* How many mounted filesystems? We need to know to |
| 290 | * allocate enough space for later... */ |
| 291 | numfilesystems = ioctl (fd, DEVMTAB_COUNT_MOUNTS); |
| 292 | if (numfilesystems<0) |
| 293 | perror_msg_and_die( "\nDEVMTAB_COUNT_MOUNTS"); |
| 294 | mntentlist = (struct k_mntent *) xcalloc ( numfilesystems, sizeof(struct k_mntent)); |
| 295 | |
| 296 | /* Grab the list of mounted filesystems */ |
| 297 | if (ioctl (fd, DEVMTAB_GET_MOUNTS, mntentlist)<0) |
| 298 | perror_msg_and_die( "\nDEVMTAB_GET_MOUNTS"); |
| 299 | |
| 300 | for( i = 0 ; i < numfilesystems ; i++) { |
| 301 | printf( "%s %s %s %s %d %d\n", mntentlist[i].mnt_fsname, |
| 302 | mntentlist[i].mnt_dir, mntentlist[i].mnt_type, |
| 303 | mntentlist[i].mnt_opts, mntentlist[i].mnt_freq, |
| 304 | mntentlist[i].mnt_passno); |
| 305 | } |
| 306 | #ifdef BB_FEATURE_CLEAN_UP |
| 307 | /* Don't bother to close files or free memory. Exit |
| 308 | * does that automagically, so we can save a few bytes */ |
| 309 | free( mntentlist); |
| 310 | close(fd); |
| 311 | #endif |
| 312 | exit(EXIT_SUCCESS); |
| 313 | #else |
| 314 | FILE *mountTable = setmntent(mtab_file, "r"); |
| 315 | |
| 316 | if (mountTable) { |
| 317 | struct mntent *m; |
| 318 | |
| 319 | while ((m = getmntent(mountTable)) != 0) { |
| 320 | char *blockDevice = m->mnt_fsname; |
| 321 | if (strcmp(blockDevice, "/dev/root") == 0) { |
| 322 | find_real_root_device_name( blockDevice); |
| 323 | } |
| 324 | printf("%s on %s type %s (%s)\n", blockDevice, m->mnt_dir, |
| 325 | m->mnt_type, m->mnt_opts); |
| 326 | } |
| 327 | endmntent(mountTable); |
| 328 | } else { |
| 329 | perror_msg_and_die("%s", mtab_file); |
| 330 | } |
| 331 | exit(EXIT_SUCCESS); |
| 332 | #endif |
| 333 | } |
| 334 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 335 | extern int mount_main(int argc, char **argv) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 336 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 337 | char string_flags_buf[1024] = ""; |
| 338 | char *string_flags = string_flags_buf; |
| 339 | char *extra_opts = string_flags_buf; |
Eric Andersen | e7413a9 | 2000-07-14 06:19:41 +0000 | [diff] [blame] | 340 | int flags = 0; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 341 | char *filesystemType = "auto"; |
Matt Kraai | 3425111 | 2001-05-02 21:17:38 +0000 | [diff] [blame^] | 342 | char device[PATH_MAX], directory[PATH_MAX]; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 343 | int all = FALSE; |
| 344 | int fakeIt = FALSE; |
| 345 | int useMtab = TRUE; |
Matt Kraai | 3e856ce | 2000-12-01 02:55:13 +0000 | [diff] [blame] | 346 | int rc = EXIT_FAILURE; |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 347 | int fstabmount = FALSE; |
Matt Kraai | a3045df | 2001-04-17 04:48:51 +0000 | [diff] [blame] | 348 | int opt; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 349 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 350 | /* Parse options */ |
Matt Kraai | a3045df | 2001-04-17 04:48:51 +0000 | [diff] [blame] | 351 | while ((opt = getopt(argc, argv, "o:rt:wafnv")) > 0) { |
| 352 | switch (opt) { |
| 353 | case 'o': |
| 354 | parse_mount_options(optarg, &flags, string_flags); |
| 355 | break; |
| 356 | case 'r': |
| 357 | flags |= MS_RDONLY; |
| 358 | break; |
| 359 | case 't': |
| 360 | filesystemType = optarg; |
| 361 | break; |
| 362 | case 'w': |
| 363 | flags &= ~MS_RDONLY; |
| 364 | break; |
| 365 | case 'a': |
| 366 | all = TRUE; |
| 367 | break; |
| 368 | case 'f': |
| 369 | fakeIt = TRUE; |
| 370 | break; |
Eric Andersen | c4cef5a | 2001-04-01 16:01:11 +0000 | [diff] [blame] | 371 | #ifdef BB_FEATURE_MTAB_SUPPORT |
Matt Kraai | a3045df | 2001-04-17 04:48:51 +0000 | [diff] [blame] | 372 | case 'n': |
| 373 | useMtab = FALSE; |
| 374 | break; |
Eric Andersen | a9c95ea | 1999-11-15 17:33:30 +0000 | [diff] [blame] | 375 | #endif |
Matt Kraai | a3045df | 2001-04-17 04:48:51 +0000 | [diff] [blame] | 376 | case 'v': |
| 377 | break; /* ignore -v */ |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 378 | } |
Matt Kraai | a3045df | 2001-04-17 04:48:51 +0000 | [diff] [blame] | 379 | } |
| 380 | |
Matt Kraai | 3425111 | 2001-05-02 21:17:38 +0000 | [diff] [blame^] | 381 | if (!all && optind == argc) |
Matt Kraai | 1240082 | 2001-04-17 04:32:50 +0000 | [diff] [blame] | 382 | show_mounts(); |
| 383 | |
Matt Kraai | 3425111 | 2001-05-02 21:17:38 +0000 | [diff] [blame^] | 384 | if (optind < argc) |
| 385 | if (realpath(argv[optind], device) == NULL) |
| 386 | perror_msg_and_die("%s", device); |
| 387 | |
| 388 | if (optind + 1 < argc) |
| 389 | if (realpath(argv[optind + 1], directory) == NULL) |
| 390 | perror_msg_and_die("%s", directory); |
| 391 | |
| 392 | if (all == TRUE || optind + 1 == argc) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 393 | struct mntent *m; |
| 394 | FILE *f = setmntent("/etc/fstab", "r"); |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 395 | fstabmount = TRUE; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 396 | |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 397 | if (f == NULL) |
Matt Kraai | 1fa1ade | 2000-12-18 03:57:16 +0000 | [diff] [blame] | 398 | perror_msg_and_die( "\nCannot read /etc/fstab"); |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 399 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 400 | while ((m = getmntent(f)) != NULL) { |
Matt Kraai | 3425111 | 2001-05-02 21:17:38 +0000 | [diff] [blame^] | 401 | if (all == FALSE && optind + 1 == argc && ( |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 402 | (strcmp(device, m->mnt_fsname) != 0) && |
| 403 | (strcmp(device, m->mnt_dir) != 0) ) ) { |
| 404 | continue; |
| 405 | } |
| 406 | |
| 407 | if (all == TRUE && ( // If we're mounting 'all' |
| 408 | (strstr(m->mnt_opts, "noauto")) || // and the file system isn't noauto, |
| 409 | (strstr(m->mnt_type, "swap")) || // and isn't swap or nfs, then mount it |
| 410 | (strstr(m->mnt_type, "nfs")) ) ) { |
| 411 | continue; |
| 412 | } |
| 413 | |
| 414 | if (all == TRUE || flags == 0) { // Allow single mount to override fstab flags |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 415 | flags = 0; |
| 416 | *string_flags = '\0'; |
| 417 | parse_mount_options(m->mnt_opts, &flags, string_flags); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 418 | } |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 419 | |
Matt Kraai | 3425111 | 2001-05-02 21:17:38 +0000 | [diff] [blame^] | 420 | strcpy(device, m->mnt_fsname); |
| 421 | strcpy(directory, m->mnt_dir); |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 422 | filesystemType = strdup(m->mnt_type); |
| 423 | singlemount: |
Mark Whitley | 20f61d3 | 2001-03-14 17:30:44 +0000 | [diff] [blame] | 424 | string_flags = strdup(string_flags); |
Eric Andersen | d9d03b8 | 2000-12-12 23:20:37 +0000 | [diff] [blame] | 425 | rc = EXIT_SUCCESS; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 426 | #ifdef BB_NFSMOUNT |
Pavel Roskin | 680d65a | 2000-06-06 17:03:55 +0000 | [diff] [blame] | 427 | if (strchr(device, ':') != NULL) |
| 428 | filesystemType = "nfs"; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 429 | if (strcmp(filesystemType, "nfs") == 0) { |
Matt Kraai | 93ba60f | 2001-02-28 15:33:12 +0000 | [diff] [blame] | 430 | if (nfsmount (device, directory, &flags, &extra_opts, |
| 431 | &string_flags, 1)) { |
| 432 | perror_msg("nfsmount failed"); |
Matt Kraai | 3e856ce | 2000-12-01 02:55:13 +0000 | [diff] [blame] | 433 | rc = EXIT_FAILURE; |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 434 | } |
Eric Andersen | 252bacc | 2000-09-19 01:21:13 +0000 | [diff] [blame] | 435 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 436 | #endif |
Matt Kraai | 92ed8a3 | 2000-12-06 15:55:23 +0000 | [diff] [blame] | 437 | if (!mount_one(device, directory, filesystemType, flags, |
| 438 | string_flags, useMtab, fakeIt, extra_opts, TRUE)) |
| 439 | rc = EXIT_FAILURE; |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 440 | |
| 441 | if (all == FALSE) |
| 442 | break; |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 443 | } |
| 444 | if (fstabmount == TRUE) |
| 445 | endmntent(f); |
| 446 | |
Matt Kraai | 3425111 | 2001-05-02 21:17:38 +0000 | [diff] [blame^] | 447 | if (all == FALSE && fstabmount == TRUE && optind + 1 == argc) |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 448 | fprintf(stderr, "Can't find %s in /etc/fstab\n", device); |
| 449 | |
Matt Kraai | 93ba60f | 2001-02-28 15:33:12 +0000 | [diff] [blame] | 450 | return rc; |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 451 | } |
| 452 | |
| 453 | goto singlemount; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 454 | } |