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 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 46 | #include <stdlib.h> |
| 47 | #include <unistd.h> |
| 48 | #include <errno.h> |
| 49 | #include <string.h> |
| 50 | #include <stdio.h> |
| 51 | #include <mntent.h> |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 52 | #include <ctype.h> |
Erik Andersen | 269bba2 | 2000-03-08 14:50:47 +0000 | [diff] [blame] | 53 | #if defined BB_FEATURE_USE_DEVPS_PATCH |
Eric Andersen | c674d70 | 2000-07-10 22:57:14 +0000 | [diff] [blame] | 54 | #include <linux/devmtab.h> /* For Erik's nifty devmtab device driver */ |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 55 | #endif |
Eric Andersen | cbe31da | 2001-02-20 06:14:08 +0000 | [diff] [blame^] | 56 | #include "busybox.h" |
Eric Andersen | bd22ed8 | 2000-07-08 18:55:24 +0000 | [diff] [blame] | 57 | |
Mark Whitley | 59ab025 | 2001-01-23 22:30:04 +0000 | [diff] [blame] | 58 | enum { |
| 59 | MS_MGC_VAL = 0xc0ed0000, /* Magic number indicatng "new" flags */ |
| 60 | MS_RDONLY = 1, /* Mount read-only */ |
| 61 | MS_NOSUID = 2, /* Ignore suid and sgid bits */ |
| 62 | MS_NODEV = 4, /* Disallow access to device special files */ |
| 63 | MS_NOEXEC = 8, /* Disallow program execution */ |
| 64 | MS_SYNCHRONOUS = 16, /* Writes are synced at once */ |
| 65 | MS_REMOUNT = 32, /* Alter flags of a mounted FS */ |
| 66 | MS_MANDLOCK = 64, /* Allow mandatory locks on an FS */ |
| 67 | S_QUOTA = 128, /* Quota initialized for file/directory/symlink */ |
| 68 | S_APPEND = 256, /* Append-only file */ |
| 69 | S_IMMUTABLE = 512, /* Immutable file */ |
| 70 | MS_NOATIME = 1024, /* Do not update access times. */ |
| 71 | MS_NODIRATIME = 2048, /* Do not update directory access times */ |
| 72 | }; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 73 | |
Eric Andersen | bd22ed8 | 2000-07-08 18:55:24 +0000 | [diff] [blame] | 74 | |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 75 | #if defined BB_FEATURE_MOUNT_LOOP |
| 76 | #include <fcntl.h> |
| 77 | #include <sys/ioctl.h> |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 78 | static int use_loop = FALSE; |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 79 | #endif |
| 80 | |
Eric Andersen | a57ba4d | 2000-07-08 19:20:49 +0000 | [diff] [blame] | 81 | extern int mount (__const char *__special_file, __const char *__dir, |
| 82 | __const char *__fstype, unsigned long int __rwflag, |
| 83 | __const void *__data); |
| 84 | extern int umount (__const char *__special_file); |
| 85 | extern int umount2 (__const char *__special_file, int __flags); |
| 86 | |
| 87 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 88 | extern const char mtab_file[]; /* Defined in utility.c */ |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 89 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 90 | struct mount_options { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 91 | const char *name; |
| 92 | unsigned long and; |
| 93 | unsigned long or; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 94 | }; |
| 95 | |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 96 | static const struct mount_options mount_options[] = { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 97 | {"async", ~MS_SYNCHRONOUS, 0}, |
Erik Andersen | 6c5f2c6 | 2000-05-05 19:49:33 +0000 | [diff] [blame] | 98 | {"atime", ~0, ~MS_NOATIME}, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 99 | {"defaults", ~0, 0}, |
| 100 | {"dev", ~MS_NODEV, 0}, |
Erik Andersen | 6c5f2c6 | 2000-05-05 19:49:33 +0000 | [diff] [blame] | 101 | {"diratime", ~0, ~MS_NODIRATIME}, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 102 | {"exec", ~MS_NOEXEC, 0}, |
Erik Andersen | 6c5f2c6 | 2000-05-05 19:49:33 +0000 | [diff] [blame] | 103 | {"noatime", ~0, MS_NOATIME}, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 104 | {"nodev", ~0, MS_NODEV}, |
Erik Andersen | 6c5f2c6 | 2000-05-05 19:49:33 +0000 | [diff] [blame] | 105 | {"nodiratime", ~0, MS_NODIRATIME}, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 106 | {"noexec", ~0, MS_NOEXEC}, |
| 107 | {"nosuid", ~0, MS_NOSUID}, |
| 108 | {"remount", ~0, MS_REMOUNT}, |
| 109 | {"ro", ~0, MS_RDONLY}, |
| 110 | {"rw", ~MS_RDONLY, 0}, |
| 111 | {"suid", ~MS_NOSUID, 0}, |
| 112 | {"sync", ~0, MS_SYNCHRONOUS}, |
| 113 | {0, 0, 0} |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 114 | }; |
| 115 | |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 116 | static int |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 117 | do_mount(char *specialfile, char *dir, char *filesystemtype, |
| 118 | long flags, void *string_flags, int useMtab, int fakeIt, |
| 119 | char *mtab_opts) |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 120 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 121 | int status = 0; |
Eric Andersen | 8847b9a | 2000-09-21 01:33:05 +0000 | [diff] [blame] | 122 | #if defined BB_FEATURE_MOUNT_LOOP |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 123 | char *lofile = NULL; |
Eric Andersen | 8847b9a | 2000-09-21 01:33:05 +0000 | [diff] [blame] | 124 | #endif |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 125 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 126 | if (fakeIt == FALSE) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 127 | { |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 128 | #if defined BB_FEATURE_MOUNT_LOOP |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 129 | if (use_loop==TRUE) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 130 | int loro = flags & MS_RDONLY; |
| 131 | char *lofile = specialfile; |
| 132 | |
| 133 | specialfile = find_unused_loop_device(); |
| 134 | if (specialfile == NULL) { |
Matt Kraai | dd19c69 | 2001-01-31 19:00:21 +0000 | [diff] [blame] | 135 | error_msg_and_die("Could not find a spare loop device"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 136 | } |
| 137 | if (set_loop(specialfile, lofile, 0, &loro)) { |
Matt Kraai | dd19c69 | 2001-01-31 19:00:21 +0000 | [diff] [blame] | 138 | error_msg_and_die("Could not setup loop device"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 139 | } |
| 140 | if (!(flags & MS_RDONLY) && loro) { /* loop is ro, but wanted rw */ |
Matt Kraai | dd19c69 | 2001-01-31 19:00:21 +0000 | [diff] [blame] | 141 | error_msg("WARNING: loop device is read-only"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 142 | flags &= ~MS_RDONLY; |
| 143 | } |
| 144 | } |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 145 | #endif |
Eric Andersen | a42982e | 2000-06-07 17:28:53 +0000 | [diff] [blame] | 146 | status = mount(specialfile, dir, filesystemtype, flags, string_flags); |
Eric Andersen | 0cccdfa | 2000-09-20 06:23:36 +0000 | [diff] [blame] | 147 | if (errno == EROFS) { |
Matt Kraai | dd19c69 | 2001-01-31 19:00:21 +0000 | [diff] [blame] | 148 | error_msg("%s is write-protected, mounting read-only", specialfile); |
Eric Andersen | 0cccdfa | 2000-09-20 06:23:36 +0000 | [diff] [blame] | 149 | status = mount(specialfile, dir, filesystemtype, flags |= MS_RDONLY, string_flags); |
| 150 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 151 | } |
Erik Andersen | 5cbdd71 | 2000-01-26 20:06:48 +0000 | [diff] [blame] | 152 | |
| 153 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 154 | /* If the mount was sucessful, do anything needed, then return TRUE */ |
Eric Andersen | 0c8e2a6 | 2000-08-02 18:56:25 +0000 | [diff] [blame] | 155 | if (status == 0 || fakeIt==TRUE) { |
Erik Andersen | 5cbdd71 | 2000-01-26 20:06:48 +0000 | [diff] [blame] | 156 | |
| 157 | #if defined BB_MTAB |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 158 | if (useMtab == TRUE) { |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 159 | erase_mtab(specialfile); // Clean any stale entries |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 160 | write_mtab(specialfile, dir, filesystemtype, flags, mtab_opts); |
| 161 | } |
| 162 | #endif |
| 163 | return (TRUE); |
| 164 | } |
| 165 | |
| 166 | /* Bummer. mount failed. Clean up */ |
| 167 | #if defined BB_FEATURE_MOUNT_LOOP |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 168 | if (lofile != NULL) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 169 | del_loop(specialfile); |
Erik Andersen | 5cbdd71 | 2000-01-26 20:06:48 +0000 | [diff] [blame] | 170 | } |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 171 | #endif |
Eric Andersen | a42982e | 2000-06-07 17:28:53 +0000 | [diff] [blame] | 172 | |
| 173 | if (errno == EPERM) { |
Matt Kraai | dd19c69 | 2001-01-31 19:00:21 +0000 | [diff] [blame] | 174 | error_msg_and_die("permission denied. Are you root?"); |
Eric Andersen | a42982e | 2000-06-07 17:28:53 +0000 | [diff] [blame] | 175 | } |
| 176 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 177 | return (FALSE); |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 178 | } |
| 179 | |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 180 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 181 | |
Eric Andersen | 8341a15 | 1999-10-08 17:14:14 +0000 | [diff] [blame] | 182 | /* Seperate standard mount options from the nonstandard string options */ |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 183 | static void |
Eric Andersen | e7413a9 | 2000-07-14 06:19:41 +0000 | [diff] [blame] | 184 | parse_mount_options(char *options, int *flags, char *strflags) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 185 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 186 | while (options) { |
| 187 | int gotone = FALSE; |
| 188 | char *comma = strchr(options, ','); |
| 189 | const struct mount_options *f = mount_options; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 190 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 191 | if (comma) |
| 192 | *comma = '\0'; |
Eric Andersen | 3ae0c78 | 1999-11-04 01:13:21 +0000 | [diff] [blame] | 193 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 194 | while (f->name != 0) { |
| 195 | if (strcasecmp(f->name, options) == 0) { |
| 196 | |
| 197 | *flags &= f->and; |
| 198 | *flags |= f->or; |
| 199 | gotone = TRUE; |
| 200 | break; |
| 201 | } |
| 202 | f++; |
| 203 | } |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 204 | #if defined BB_FEATURE_MOUNT_LOOP |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 205 | if (gotone == FALSE && !strcasecmp("loop", options)) { /* loop device support */ |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 206 | use_loop = TRUE; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 207 | gotone = TRUE; |
| 208 | } |
Erik Andersen | b7cc49d | 2000-01-13 06:38:14 +0000 | [diff] [blame] | 209 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 210 | if (*strflags && strflags != '\0' && gotone == FALSE) { |
| 211 | char *temp = strflags; |
| 212 | |
| 213 | temp += strlen(strflags); |
| 214 | *temp++ = ','; |
| 215 | *temp++ = '\0'; |
| 216 | } |
| 217 | if (gotone == FALSE) |
| 218 | strcat(strflags, options); |
| 219 | if (comma) { |
| 220 | *comma = ','; |
| 221 | options = ++comma; |
| 222 | } else { |
| 223 | break; |
| 224 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 225 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | int |
Eric Andersen | d0246fb | 1999-11-04 21:18:07 +0000 | [diff] [blame] | 229 | mount_one(char *blockDevice, char *directory, char *filesystemType, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 230 | unsigned long flags, char *string_flags, int useMtab, int fakeIt, |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 231 | char *mtab_opts, int whineOnErrors) |
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 | int status = 0; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 234 | |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 235 | char buf[255]; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 236 | if (strcmp(filesystemType, "auto") == 0) { |
Eric Andersen | af4ac77 | 2001-02-01 22:43:49 +0000 | [diff] [blame] | 237 | FILE *f = xfopen("/proc/filesystems", "r"); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 238 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 239 | while (fgets(buf, sizeof(buf), f) != NULL) { |
| 240 | filesystemType = buf; |
| 241 | if (*filesystemType == '\t') { // Not a nodev filesystem |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 242 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 243 | // Add NULL termination to each line |
| 244 | while (*filesystemType && *filesystemType != '\n') |
| 245 | filesystemType++; |
| 246 | *filesystemType = '\0'; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 247 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 248 | filesystemType = buf; |
| 249 | filesystemType++; // hop past tab |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 250 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 251 | status = do_mount(blockDevice, directory, filesystemType, |
| 252 | flags | MS_MGC_VAL, string_flags, |
| 253 | useMtab, fakeIt, mtab_opts); |
| 254 | if (status == TRUE) |
| 255 | break; |
| 256 | } |
| 257 | } |
| 258 | fclose(f); |
| 259 | } else |
Erik Andersen | 269bba2 | 2000-03-08 14:50:47 +0000 | [diff] [blame] | 260 | #if defined BB_FEATURE_USE_DEVPS_PATCH |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 261 | if (strcmp(filesystemType, "auto") == 0) { |
| 262 | int fd, i, numfilesystems; |
| 263 | char device[] = "/dev/mtab"; |
| 264 | struct k_fstype *fslist; |
| 265 | |
| 266 | /* open device */ |
| 267 | fd = open(device, O_RDONLY); |
| 268 | if (fd < 0) |
Matt Kraai | 1fa1ade | 2000-12-18 03:57:16 +0000 | [diff] [blame] | 269 | perror_msg_and_die("open failed for `%s'", device); |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 270 | |
| 271 | /* How many filesystems? We need to know to allocate enough space */ |
| 272 | numfilesystems = ioctl (fd, DEVMTAB_COUNT_FILESYSTEMS); |
| 273 | if (numfilesystems<0) |
Matt Kraai | 1fa1ade | 2000-12-18 03:57:16 +0000 | [diff] [blame] | 274 | perror_msg_and_die("\nDEVMTAB_COUNT_FILESYSTEMS"); |
Matt Kraai | 322ae93 | 2000-09-13 02:46:14 +0000 | [diff] [blame] | 275 | fslist = (struct k_fstype *) xcalloc ( numfilesystems, sizeof(struct k_fstype)); |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 276 | |
| 277 | /* Grab the list of available filesystems */ |
| 278 | status = ioctl (fd, DEVMTAB_GET_FILESYSTEMS, fslist); |
| 279 | if (status<0) |
Matt Kraai | 1fa1ade | 2000-12-18 03:57:16 +0000 | [diff] [blame] | 280 | perror_msg_and_die("\nDEVMTAB_GET_FILESYSTEMS"); |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 281 | |
| 282 | /* Walk the list trying to mount filesystems |
| 283 | * that do not claim to be nodev filesystems */ |
| 284 | for( i = 0 ; i < numfilesystems ; i++) { |
| 285 | if (fslist[i].mnt_nodev) |
| 286 | continue; |
| 287 | status = do_mount(blockDevice, directory, fslist[i].mnt_type, |
| 288 | flags | MS_MGC_VAL, string_flags, |
| 289 | useMtab, fakeIt, mtab_opts); |
| 290 | if (status == TRUE) |
| 291 | break; |
| 292 | } |
| 293 | free( fslist); |
| 294 | close(fd); |
| 295 | } else |
| 296 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 297 | { |
| 298 | status = do_mount(blockDevice, directory, filesystemType, |
| 299 | flags | MS_MGC_VAL, string_flags, useMtab, |
| 300 | fakeIt, mtab_opts); |
| 301 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 302 | |
Eric Andersen | a42982e | 2000-06-07 17:28:53 +0000 | [diff] [blame] | 303 | if (status == FALSE) { |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 304 | if (whineOnErrors == TRUE) { |
Matt Kraai | 1fa1ade | 2000-12-18 03:57:16 +0000 | [diff] [blame] | 305 | perror_msg("Mounting %s on %s failed", blockDevice, directory); |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 306 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 307 | return (FALSE); |
| 308 | } |
| 309 | return (TRUE); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 310 | } |
| 311 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 312 | extern int mount_main(int argc, char **argv) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 313 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 314 | char string_flags_buf[1024] = ""; |
| 315 | char *string_flags = string_flags_buf; |
| 316 | char *extra_opts = string_flags_buf; |
Eric Andersen | e7413a9 | 2000-07-14 06:19:41 +0000 | [diff] [blame] | 317 | int flags = 0; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 318 | char *filesystemType = "auto"; |
| 319 | char *device = NULL; |
| 320 | char *directory = NULL; |
| 321 | int all = FALSE; |
| 322 | int fakeIt = FALSE; |
| 323 | int useMtab = TRUE; |
| 324 | int i; |
Matt Kraai | 3e856ce | 2000-12-01 02:55:13 +0000 | [diff] [blame] | 325 | int rc = EXIT_FAILURE; |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 326 | int fstabmount = FALSE; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 327 | |
Erik Andersen | 269bba2 | 2000-03-08 14:50:47 +0000 | [diff] [blame] | 328 | #if defined BB_FEATURE_USE_DEVPS_PATCH |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 329 | if (argc == 1) { |
| 330 | int fd, i, numfilesystems; |
| 331 | char device[] = "/dev/mtab"; |
| 332 | struct k_mntent *mntentlist; |
| 333 | |
| 334 | /* open device */ |
| 335 | fd = open(device, O_RDONLY); |
| 336 | if (fd < 0) |
Matt Kraai | 1fa1ade | 2000-12-18 03:57:16 +0000 | [diff] [blame] | 337 | perror_msg_and_die("open failed for `%s'", device); |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 338 | |
| 339 | /* How many mounted filesystems? We need to know to |
| 340 | * allocate enough space for later... */ |
| 341 | numfilesystems = ioctl (fd, DEVMTAB_COUNT_MOUNTS); |
| 342 | if (numfilesystems<0) |
Matt Kraai | 1fa1ade | 2000-12-18 03:57:16 +0000 | [diff] [blame] | 343 | perror_msg_and_die( "\nDEVMTAB_COUNT_MOUNTS"); |
Matt Kraai | 322ae93 | 2000-09-13 02:46:14 +0000 | [diff] [blame] | 344 | mntentlist = (struct k_mntent *) xcalloc ( numfilesystems, sizeof(struct k_mntent)); |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 345 | |
| 346 | /* Grab the list of mounted filesystems */ |
| 347 | if (ioctl (fd, DEVMTAB_GET_MOUNTS, mntentlist)<0) |
Matt Kraai | 1fa1ade | 2000-12-18 03:57:16 +0000 | [diff] [blame] | 348 | perror_msg_and_die( "\nDEVMTAB_GET_MOUNTS"); |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 349 | |
| 350 | for( i = 0 ; i < numfilesystems ; i++) { |
Eric Andersen | 6f65a3a | 2001-01-20 01:10:07 +0000 | [diff] [blame] | 351 | printf( "%s %s %s %s %d %d\n", mntentlist[i].mnt_fsname, |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 352 | mntentlist[i].mnt_dir, mntentlist[i].mnt_type, |
| 353 | mntentlist[i].mnt_opts, mntentlist[i].mnt_freq, |
| 354 | mntentlist[i].mnt_passno); |
| 355 | } |
Eric Andersen | b040d4f | 2000-07-25 18:01:20 +0000 | [diff] [blame] | 356 | #ifdef BB_FEATURE_CLEAN_UP |
Erik Andersen | 298854f | 2000-03-23 01:09:18 +0000 | [diff] [blame] | 357 | /* Don't bother to close files or free memory. Exit |
| 358 | * does that automagically, so we can save a few bytes */ |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 359 | free( mntentlist); |
| 360 | close(fd); |
Erik Andersen | 298854f | 2000-03-23 01:09:18 +0000 | [diff] [blame] | 361 | #endif |
Matt Kraai | 3e856ce | 2000-12-01 02:55:13 +0000 | [diff] [blame] | 362 | return EXIT_SUCCESS; |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 363 | } |
| 364 | #else |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 365 | if (argc == 1) { |
| 366 | FILE *mountTable = setmntent(mtab_file, "r"); |
| 367 | |
| 368 | if (mountTable) { |
| 369 | struct mntent *m; |
| 370 | |
| 371 | while ((m = getmntent(mountTable)) != 0) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 372 | char *blockDevice = m->mnt_fsname; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 373 | if (strcmp(blockDevice, "/dev/root") == 0) { |
Erik Andersen | ec5bd90 | 2000-03-22 07:12:05 +0000 | [diff] [blame] | 374 | find_real_root_device_name( blockDevice); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 375 | } |
| 376 | printf("%s on %s type %s (%s)\n", blockDevice, m->mnt_dir, |
| 377 | m->mnt_type, m->mnt_opts); |
| 378 | } |
| 379 | endmntent(mountTable); |
| 380 | } else { |
Matt Kraai | a9819b2 | 2000-12-22 01:48:07 +0000 | [diff] [blame] | 381 | perror_msg_and_die("%s", mtab_file); |
Eric Andersen | cb6e256 | 1999-10-16 15:48:40 +0000 | [diff] [blame] | 382 | } |
Matt Kraai | 3e856ce | 2000-12-01 02:55:13 +0000 | [diff] [blame] | 383 | return EXIT_SUCCESS; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 384 | } |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 385 | #endif |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 386 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 387 | /* Parse options */ |
| 388 | i = --argc; |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 389 | argv++; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 390 | while (i > 0 && **argv) { |
| 391 | if (**argv == '-') { |
| 392 | char *opt = *argv; |
Eric Andersen | 596e546 | 1999-10-07 08:30:23 +0000 | [diff] [blame] | 393 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 394 | while (i > 0 && *++opt) |
| 395 | switch (*opt) { |
| 396 | case 'o': |
| 397 | if (--i == 0) { |
| 398 | goto goodbye; |
| 399 | } |
| 400 | parse_mount_options(*(++argv), &flags, string_flags); |
| 401 | break; |
| 402 | case 'r': |
| 403 | flags |= MS_RDONLY; |
| 404 | break; |
| 405 | case 't': |
| 406 | if (--i == 0) { |
| 407 | goto goodbye; |
| 408 | } |
| 409 | filesystemType = *(++argv); |
| 410 | break; |
| 411 | case 'w': |
| 412 | flags &= ~MS_RDONLY; |
| 413 | break; |
| 414 | case 'a': |
| 415 | all = TRUE; |
| 416 | break; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 417 | case 'f': |
| 418 | fakeIt = TRUE; |
| 419 | break; |
Erik Andersen | ce91732 | 2000-03-13 04:07:02 +0000 | [diff] [blame] | 420 | #ifdef BB_MTAB |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 421 | case 'n': |
| 422 | useMtab = FALSE; |
| 423 | break; |
Eric Andersen | a9c95ea | 1999-11-15 17:33:30 +0000 | [diff] [blame] | 424 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 425 | case 'v': |
Erik Andersen | 983b51b | 2000-04-04 18:14:25 +0000 | [diff] [blame] | 426 | break; /* ignore -v */ |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 427 | case 'h': |
| 428 | case '-': |
| 429 | goto goodbye; |
| 430 | } |
| 431 | } else { |
| 432 | if (device == NULL) |
| 433 | device = *argv; |
| 434 | else if (directory == NULL) |
| 435 | directory = *argv; |
| 436 | else { |
| 437 | goto goodbye; |
| 438 | } |
| 439 | } |
| 440 | i--; |
| 441 | argv++; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 442 | } |
Eric Andersen | d73dc5b | 1999-11-10 23:13:02 +0000 | [diff] [blame] | 443 | |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 444 | if (all == TRUE || directory == NULL) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 445 | struct mntent *m; |
| 446 | FILE *f = setmntent("/etc/fstab", "r"); |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 447 | fstabmount = TRUE; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 448 | |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 449 | if (f == NULL) |
Matt Kraai | 1fa1ade | 2000-12-18 03:57:16 +0000 | [diff] [blame] | 450 | perror_msg_and_die( "\nCannot read /etc/fstab"); |
Erik Andersen | 246cc6d | 2000-03-07 07:41:42 +0000 | [diff] [blame] | 451 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 452 | while ((m = getmntent(f)) != NULL) { |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 453 | if (all == FALSE && directory == NULL && ( |
| 454 | (strcmp(device, m->mnt_fsname) != 0) && |
| 455 | (strcmp(device, m->mnt_dir) != 0) ) ) { |
| 456 | continue; |
| 457 | } |
| 458 | |
| 459 | if (all == TRUE && ( // If we're mounting 'all' |
| 460 | (strstr(m->mnt_opts, "noauto")) || // and the file system isn't noauto, |
| 461 | (strstr(m->mnt_type, "swap")) || // and isn't swap or nfs, then mount it |
| 462 | (strstr(m->mnt_type, "nfs")) ) ) { |
| 463 | continue; |
| 464 | } |
| 465 | |
| 466 | if (all == TRUE || flags == 0) { // Allow single mount to override fstab flags |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 467 | flags = 0; |
| 468 | *string_flags = '\0'; |
| 469 | parse_mount_options(m->mnt_opts, &flags, string_flags); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 470 | } |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 471 | |
| 472 | device = strdup(m->mnt_fsname); |
| 473 | directory = strdup(m->mnt_dir); |
| 474 | filesystemType = strdup(m->mnt_type); |
| 475 | singlemount: |
Eric Andersen | d9d03b8 | 2000-12-12 23:20:37 +0000 | [diff] [blame] | 476 | rc = EXIT_SUCCESS; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 477 | #ifdef BB_NFSMOUNT |
Pavel Roskin | 680d65a | 2000-06-06 17:03:55 +0000 | [diff] [blame] | 478 | if (strchr(device, ':') != NULL) |
| 479 | filesystemType = "nfs"; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 480 | if (strcmp(filesystemType, "nfs") == 0) { |
Pavel Roskin | 32f2769 | 2000-08-22 15:35:31 +0000 | [diff] [blame] | 481 | rc = nfsmount (device, directory, &flags, |
| 482 | &extra_opts, &string_flags, 1); |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 483 | if ( rc != 0) { |
Matt Kraai | 1fa1ade | 2000-12-18 03:57:16 +0000 | [diff] [blame] | 484 | perror_msg_and_die("nfsmount failed"); |
Matt Kraai | 3e856ce | 2000-12-01 02:55:13 +0000 | [diff] [blame] | 485 | rc = EXIT_FAILURE; |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 486 | } |
Eric Andersen | 252bacc | 2000-09-19 01:21:13 +0000 | [diff] [blame] | 487 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 488 | #endif |
Matt Kraai | 92ed8a3 | 2000-12-06 15:55:23 +0000 | [diff] [blame] | 489 | if (!mount_one(device, directory, filesystemType, flags, |
| 490 | string_flags, useMtab, fakeIt, extra_opts, TRUE)) |
| 491 | rc = EXIT_FAILURE; |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 492 | |
| 493 | if (all == FALSE) |
| 494 | break; |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 495 | } |
| 496 | if (fstabmount == TRUE) |
| 497 | endmntent(f); |
| 498 | |
| 499 | if (all == FALSE && fstabmount == TRUE && directory == NULL) |
| 500 | fprintf(stderr, "Can't find %s in /etc/fstab\n", device); |
| 501 | |
| 502 | exit(rc); |
| 503 | } |
| 504 | |
| 505 | goto singlemount; |
| 506 | |
Eric Andersen | fdd5103 | 2000-08-02 18:48:26 +0000 | [diff] [blame] | 507 | goodbye: |
Eric Andersen | 67991cf | 2001-02-14 21:23:06 +0000 | [diff] [blame] | 508 | show_usage(); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 509 | } |