2 * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
3 * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU Lesser General Public License version 2.1
7 * as published by the Free Software Foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
23 #include <sys/types.h>
25 #include <sys/mount.h>
31 #include <libubox/list.h>
32 #include <libubox/vlist.h>
33 #include <libubox/blobmsg_json.h>
34 #include <libubox/avl-cmp.h>
36 #include "libblkid-tiny/libblkid-tiny.h"
44 struct vlist_node node
;
60 static struct vlist_tree mounts
;
61 static struct blob_buf b
;
62 static LIST_HEAD(devices
);
63 static int anon_mount
, anon_swap
, auto_mount
, auto_swap
, check_fs
;
64 static unsigned int delay_root
;
76 static const struct blobmsg_policy config_policy
[__CFG_MAX
] = {
77 [CFG_ANON_SWAP
] = { .name
= "anon_swap", .type
= BLOBMSG_TYPE_INT32
},
78 [CFG_ANON_MOUNT
] = { .name
= "anon_mount", .type
= BLOBMSG_TYPE_INT32
},
79 [CFG_AUTO_SWAP
] = { .name
= "auto_swap", .type
= BLOBMSG_TYPE_INT32
},
80 [CFG_AUTO_MOUNT
] = { .name
= "auto_mount", .type
= BLOBMSG_TYPE_INT32
},
81 [CFG_DELAY_ROOT
] = { .name
= "delay_root", .type
= BLOBMSG_TYPE_INT32
},
82 [CFG_CHECK_FS
] = { .name
= "check_fs", .type
= BLOBMSG_TYPE_INT32
},
95 static const struct uci_blob_param_list config_attr_list
= {
96 .n_params
= __CFG_MAX
,
97 .params
= config_policy
,
100 static const struct blobmsg_policy mount_policy
[__MOUNT_MAX
] = {
101 [MOUNT_UUID
] = { .name
= "uuid", .type
= BLOBMSG_TYPE_STRING
},
102 [MOUNT_LABEL
] = { .name
= "label", .type
= BLOBMSG_TYPE_STRING
},
103 [MOUNT_DEVICE
] = { .name
= "device", .type
= BLOBMSG_TYPE_STRING
},
104 [MOUNT_TARGET
] = { .name
= "target", .type
= BLOBMSG_TYPE_STRING
},
105 [MOUNT_OPTIONS
] = { .name
= "options", .type
= BLOBMSG_TYPE_STRING
},
106 [MOUNT_ENABLE
] = { .name
= "enabled", .type
= BLOBMSG_TYPE_INT32
},
109 static const struct uci_blob_param_list mount_attr_list
= {
110 .n_params
= __MOUNT_MAX
,
111 .params
= mount_policy
,
123 static const struct blobmsg_policy swap_policy
[__SWAP_MAX
] = {
124 [SWAP_ENABLE
] = { .name
= "enabled", .type
= BLOBMSG_TYPE_INT32
},
125 [SWAP_UUID
] = { .name
= "uuid", .type
= BLOBMSG_TYPE_STRING
},
126 [SWAP_LABEL
] = { .name
= "label", .type
= BLOBMSG_TYPE_STRING
},
127 [SWAP_DEVICE
] = { .name
= "device", .type
= BLOBMSG_TYPE_STRING
},
128 [SWAP_PRIO
] = { .name
= "priority", .type
= BLOBMSG_TYPE_INT32
},
131 static const struct uci_blob_param_list swap_attr_list
= {
132 .n_params
= __SWAP_MAX
,
133 .params
= swap_policy
,
142 # define MS_DIRSYNC (1 << 7)
146 # define MS_RELATIME (1 << 21)
149 #ifndef MS_STRICTATIME
150 # define MS_STRICTATIME (1 << 24)
153 static const struct mount_flag mount_flags
[] = {
154 { "sync", MS_SYNCHRONOUS
},
155 { "async", ~MS_SYNCHRONOUS
},
156 { "dirsync", MS_DIRSYNC
},
157 { "mand", MS_MANDLOCK
},
158 { "nomand", ~MS_MANDLOCK
},
159 { "atime", ~MS_NOATIME
},
160 { "noatime", MS_NOATIME
},
161 { "dev", ~MS_NODEV
},
162 { "nodev", MS_NODEV
},
163 { "diratime", ~MS_NODIRATIME
},
164 { "nodiratime", MS_NODIRATIME
},
165 { "exec", ~MS_NOEXEC
},
166 { "noexec", MS_NOEXEC
},
167 { "suid", ~MS_NOSUID
},
168 { "nosuid", MS_NOSUID
},
169 { "rw", ~MS_RDONLY
},
171 { "relatime", MS_RELATIME
},
172 { "norelatime", ~MS_RELATIME
},
173 { "strictatime", MS_STRICTATIME
},
176 static char *blobmsg_get_strdup(struct blob_attr
*attr
)
181 return strdup(blobmsg_get_string(attr
));
184 static char *blobmsg_get_basename(struct blob_attr
*attr
)
189 return strdup(basename(blobmsg_get_string(attr
)));
192 static void parse_mount_options(struct mount
*m
, char *optstr
)
196 char *p
, *opts
, *last
;
201 if (!optstr
|| !*optstr
)
204 m
->options
= opts
= calloc(1, strlen(optstr
) + 1);
217 for (i
= 0, is_flag
= false; i
< ARRAY_SIZE(mount_flags
); i
++) {
218 if (!strcmp(last
, mount_flags
[i
].name
)) {
219 if (mount_flags
[i
].flag
< 0)
220 m
->flags
&= (uint32_t)mount_flags
[i
].flag
;
222 m
->flags
|= (uint32_t)mount_flags
[i
].flag
;
229 opts
+= sprintf(opts
, "%s%s", (opts
> m
->options
) ? "," : "", last
);
238 static int mount_add(struct uci_section
*s
)
240 struct blob_attr
*tb
[__MOUNT_MAX
] = { 0 };
243 blob_buf_init(&b
, 0);
244 uci_to_blob(&b
, s
, &mount_attr_list
);
245 blobmsg_parse(mount_policy
, __MOUNT_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
247 if (!tb
[MOUNT_LABEL
] && !tb
[MOUNT_UUID
] && !tb
[MOUNT_DEVICE
])
250 if (tb
[MOUNT_ENABLE
] && !blobmsg_get_u32(tb
[MOUNT_ENABLE
]))
253 m
= malloc(sizeof(struct mount
));
254 m
->type
= TYPE_MOUNT
;
255 m
->uuid
= blobmsg_get_strdup(tb
[MOUNT_UUID
]);
256 m
->label
= blobmsg_get_strdup(tb
[MOUNT_LABEL
]);
257 m
->target
= blobmsg_get_strdup(tb
[MOUNT_TARGET
]);
258 m
->device
= blobmsg_get_basename(tb
[MOUNT_DEVICE
]);
260 parse_mount_options(m
, blobmsg_get_strdup(tb
[MOUNT_OPTIONS
]));
262 m
->overlay
= m
->extroot
= 0;
263 if (m
->target
&& !strcmp(m
->target
, "/"))
265 if (m
->target
&& !strcmp(m
->target
, "/overlay"))
266 m
->extroot
= m
->overlay
= 1;
269 vlist_add(&mounts
, &m
->node
, m
->uuid
);
271 vlist_add(&mounts
, &m
->node
, m
->label
);
273 vlist_add(&mounts
, &m
->node
, m
->device
);
278 static int swap_add(struct uci_section
*s
)
280 struct blob_attr
*tb
[__SWAP_MAX
] = { 0 };
283 blob_buf_init(&b
, 0);
284 uci_to_blob(&b
, s
, &swap_attr_list
);
285 blobmsg_parse(swap_policy
, __SWAP_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
287 if (!tb
[SWAP_UUID
] && !tb
[SWAP_LABEL
] && !tb
[SWAP_DEVICE
])
290 m
= malloc(sizeof(struct mount
));
291 memset(m
, 0, sizeof(struct mount
));
293 m
->uuid
= blobmsg_get_strdup(tb
[SWAP_UUID
]);
294 m
->label
= blobmsg_get_strdup(tb
[SWAP_LABEL
]);
295 m
->device
= blobmsg_get_basename(tb
[SWAP_DEVICE
]);
297 m
->prio
= blobmsg_get_u32(tb
[SWAP_PRIO
]);
299 m
->prio
= ((m
->prio
<< SWAP_FLAG_PRIO_SHIFT
) & SWAP_FLAG_PRIO_MASK
) | SWAP_FLAG_PREFER
;
301 if ((!tb
[SWAP_ENABLE
]) || blobmsg_get_u32(tb
[SWAP_ENABLE
])) {
302 /* store complete swap path */
304 m
->target
= blobmsg_get_strdup(tb
[SWAP_DEVICE
]);
305 vlist_add(&mounts
, &m
->node
, (m
->uuid
) ? (m
->uuid
) : (m
->device
));
311 static int global_add(struct uci_section
*s
)
313 struct blob_attr
*tb
[__CFG_MAX
] = { 0 };
315 blob_buf_init(&b
, 0);
316 uci_to_blob(&b
, s
, &config_attr_list
);
317 blobmsg_parse(config_policy
, __CFG_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
319 if ((tb
[CFG_ANON_MOUNT
]) && blobmsg_get_u32(tb
[CFG_ANON_MOUNT
]))
321 if ((tb
[CFG_ANON_SWAP
]) && blobmsg_get_u32(tb
[CFG_ANON_SWAP
]))
324 if ((tb
[CFG_AUTO_MOUNT
]) && blobmsg_get_u32(tb
[CFG_AUTO_MOUNT
]))
326 if ((tb
[CFG_AUTO_SWAP
]) && blobmsg_get_u32(tb
[CFG_AUTO_SWAP
]))
329 if (tb
[CFG_DELAY_ROOT
])
330 delay_root
= blobmsg_get_u32(tb
[CFG_DELAY_ROOT
]);
332 if ((tb
[CFG_CHECK_FS
]) && blobmsg_get_u32(tb
[CFG_CHECK_FS
]))
338 static struct mount
* find_swap(const char *uuid
, const char *label
, const char *device
)
342 vlist_for_each_element(&mounts
, m
, node
) {
343 if (m
->type
!= TYPE_SWAP
)
345 if (uuid
&& m
->uuid
&& !strcmp(m
->uuid
, uuid
))
347 if (label
&& m
->label
&& !strcmp(m
->label
, label
))
349 if (device
&& m
->device
&& !strcmp(m
->device
, device
))
356 static struct mount
* find_block(const char *uuid
, const char *label
, const char *device
,
361 vlist_for_each_element(&mounts
, m
, node
) {
362 if (m
->type
!= TYPE_MOUNT
)
364 if (m
->uuid
&& uuid
&& !strcmp(m
->uuid
, uuid
))
366 if (m
->label
&& label
&& !strcmp(m
->label
, label
))
368 if (m
->target
&& target
&& !strcmp(m
->target
, target
))
370 if (m
->device
&& device
&& !strcmp(m
->device
, device
))
377 static void mounts_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
378 struct vlist_node
*node_old
)
382 static int config_load(char *cfg
)
384 struct uci_context
*ctx
;
385 struct uci_package
*pkg
;
386 struct uci_element
*e
;
388 vlist_init(&mounts
, avl_strcmp
, mounts_update
);
390 ctx
= uci_alloc_context();
393 snprintf(path
, 32, "%s/etc/config", cfg
);
394 uci_set_confdir(ctx
, path
);
397 if (uci_load(ctx
, "fstab", &pkg
))
400 vlist_update(&mounts
);
401 uci_foreach_element(&pkg
->sections
, e
) {
402 struct uci_section
*s
= uci_to_section(e
);
404 if (!strcmp(s
->type
, "mount"))
406 if (!strcmp(s
->type
, "swap"))
408 if (!strcmp(s
->type
, "global"))
411 vlist_flush(&mounts
);
416 static struct blkid_struct_probe
* _probe_path(char *path
)
418 struct blkid_struct_probe
*pr
;
420 pr
= malloc(sizeof(*pr
));
425 memset(pr
, 0, sizeof(*pr
));
426 probe_block(path
, pr
);
428 if (pr
->err
|| !pr
->id
) {
436 static int _cache_load(const char *path
)
438 int gl_flags
= GLOB_NOESCAPE
| GLOB_MARK
;
442 if (glob(path
, gl_flags
, NULL
, &gl
) < 0)
445 for (j
= 0; j
< gl
.gl_pathc
; j
++) {
446 struct blkid_struct_probe
*pr
= _probe_path(gl
.gl_pathv
[j
]);
448 list_add_tail(&pr
->list
, &devices
);
456 static void cache_load(int mtd
)
459 _cache_load("/dev/mtdblock*");
460 _cache_load("/dev/mmcblk*");
461 _cache_load("/dev/sd*");
462 _cache_load("/dev/sdc*");
463 _cache_load("/dev/hd*");
464 _cache_load("/dev/md*");
465 _cache_load("/dev/mapper/*");
468 static int print_block_info(struct blkid_struct_probe
*pr
)
470 printf("%s:", pr
->dev
);
472 printf(" UUID=\"%s\"", pr
->uuid
);
475 printf(" LABEL=\"%s\"", pr
->label
);
478 printf(" NAME=\"%s\"", pr
->name
);
481 printf(" VERSION=\"%s\"", pr
->version
);
483 printf(" TYPE=\"%s\"\n", pr
->id
->name
);
488 static int print_block_uci(struct blkid_struct_probe
*pr
)
490 if (!strcmp(pr
->id
->name
, "swap")) {
491 printf("config 'swap'\n");
493 printf("config 'mount'\n");
494 printf("\toption\ttarget\t'/mnt/%s'\n", basename(pr
->dev
));
497 printf("\toption\tuuid\t'%s'\n", pr
->uuid
);
499 printf("\toption\tdevice\t'%s'\n", pr
->dev
);
500 printf("\toption\tenabled\t'0'\n\n");
505 static struct blkid_struct_probe
* find_block_info(char *uuid
, char *label
, char *path
)
507 struct blkid_struct_probe
*pr
= NULL
;
510 list_for_each_entry(pr
, &devices
, list
)
511 if (!strcmp(pr
->uuid
, uuid
))
515 list_for_each_entry(pr
, &devices
, list
)
516 if (strcmp(pr
->label
, label
))
520 list_for_each_entry(pr
, &devices
, list
)
521 if (!strcmp(pr
->dev
, path
))
527 static char* find_mount_point(char *block
)
529 FILE *fp
= fopen("/proc/mounts", "r");
530 static char line
[256];
531 int len
= strlen(block
);
537 while (fgets(line
, sizeof(line
), fp
)) {
538 if (!strncmp(line
, block
, len
)) {
539 char *p
= &line
[len
+ 1];
540 char *t
= strstr(p
, " ");
555 static void mkdir_p(char *dir
)
557 char *l
= strrchr(dir
, '/');
567 static void check_filesystem(struct blkid_struct_probe
*pr
)
571 char *e2fsck
= "/usr/sbin/e2fsck";
573 if (strncmp(pr
->id
->name
, "ext", 3)) {
574 fprintf(stderr
, "check_filesystem: %s is not supported\n", pr
->id
->name
);
578 if (stat(e2fsck
, &statbuf
) < 0) {
579 fprintf(stderr
, "check_filesystem: %s not found\n", e2fsck
);
585 execl(e2fsck
, e2fsck
, "-p", pr
->dev
, NULL
);
587 } else if (pid
> 0) {
590 waitpid(pid
, &status
, 0);
591 if (WEXITSTATUS(status
))
592 fprintf(stderr
, "check_filesystem: %s returned %d\n", e2fsck
, WEXITSTATUS(status
));
596 static void handle_swapfiles(bool on
)
600 struct blkid_struct_probe
*pr
;
602 vlist_for_each_element(&mounts
, m
, node
)
604 if (m
->type
!= TYPE_SWAP
|| !m
->target
)
607 if (stat(m
->target
, &s
) || !S_ISREG(s
.st_mode
))
610 pr
= _probe_path(m
->target
);
615 if (!strcmp(pr
->id
->name
, "swap")) {
617 swapon(pr
->dev
, m
->prio
);
626 static int mount_device(struct blkid_struct_probe
*pr
, int hotplug
)
634 device
= basename(pr
->dev
);
636 if (!strcmp(pr
->id
->name
, "swap")) {
637 if (hotplug
&& !auto_swap
)
639 m
= find_swap(pr
->uuid
, pr
->label
, device
);
641 swapon(pr
->dev
, (m
) ? (m
->prio
) : (0));
646 if (hotplug
&& !auto_mount
)
649 if (find_mount_point(pr
->dev
)) {
650 fprintf(stderr
, "%s is already mounted\n", pr
->dev
);
654 m
= find_block(pr
->uuid
, pr
->label
, device
, NULL
);
659 char *target
= m
->target
;
664 snprintf(_target
, sizeof(_target
), "/mnt/%s", device
);
670 check_filesystem(pr
);
672 err
= mount(pr
->dev
, target
, pr
->id
->name
, m
->flags
,
673 (m
->options
) ? (m
->options
) : (""));
675 fprintf(stderr
, "mounting %s (%s) as %s failed (%d) - %s\n",
676 pr
->dev
, pr
->id
->name
, target
, err
, strerror(err
));
678 handle_swapfiles(true);
683 char target
[] = "/mnt/mmcblk123";
686 snprintf(target
, sizeof(target
), "/mnt/%s", device
);
690 check_filesystem(pr
);
692 err
= mount(pr
->dev
, target
, pr
->id
->name
, 0, "");
694 fprintf(stderr
, "mounting %s (%s) as %s failed (%d) - %s\n",
695 pr
->dev
, pr
->id
->name
, target
, err
, strerror(err
));
697 handle_swapfiles(true);
704 static int umount_device(struct blkid_struct_probe
*pr
)
707 char *device
= basename(pr
->dev
);
714 if (!strcmp(pr
->id
->name
, "swap"))
717 mp
= find_mount_point(pr
->dev
);
721 m
= find_block(pr
->uuid
, pr
->label
, device
, NULL
);
725 err
= umount2(mp
, MNT_DETACH
);
727 fprintf(stderr
, "unmounting %s (%s) failed (%d) - %s\n",
728 pr
->dev
, mp
, err
, strerror(err
));
730 fprintf(stderr
, "unmounted %s (%s)\n",
736 static int main_hotplug(int argc
, char **argv
)
739 char *action
, *device
, *mount_point
;
741 action
= getenv("ACTION");
742 device
= getenv("DEVNAME");
744 if (!action
|| !device
)
746 snprintf(path
, sizeof(path
), "/dev/%s", device
);
748 if (!strcmp(action
, "remove")) {
750 mount_point
= find_mount_point(path
);
752 err
= umount2(mount_point
, MNT_DETACH
);
755 fprintf(stderr
, "umount of %s failed (%d) - %s\n",
756 mount_point
, err
, strerror(err
));
759 } else if (strcmp(action
, "add")) {
760 fprintf(stderr
, "Unkown action %s\n", action
);
765 if (config_load(NULL
))
769 return mount_device(find_block_info(NULL
, NULL
, path
), 1);
772 static int find_block_mtd(char *name
, char *part
, int plen
)
774 FILE *fp
= fopen("/proc/mtd", "r");
775 static char line
[256];
781 while (!index
&& fgets(line
, sizeof(line
), fp
)) {
782 if (strstr(line
, name
)) {
783 char *eol
= strstr(line
, ":");
798 snprintf(part
, plen
, "/dev/mtdblock%s", index
);
803 static int check_extroot(char *path
)
805 struct blkid_struct_probe
*pr
= NULL
;
808 if (find_block_mtd("rootfs", fs
, sizeof(fs
)))
811 list_for_each_entry(pr
, &devices
, list
) {
812 if (!strcmp(pr
->dev
, fs
)) {
816 char uuid
[64] = { 0 };
818 snprintf(tag
, sizeof(tag
), "%s/etc/.extroot-uuid", path
);
820 fp
= fopen(tag
, "w+");
822 fprintf(stderr
, "extroot: failed to write uuid tag file\n");
823 /* return 0 to continue boot regardless of error */
831 fp
= fopen(tag
, "r");
833 fprintf(stderr
, "extroot: failed to open uuid tag file\n");
837 fgets(uuid
, sizeof(uuid
), fp
);
839 if (!strcmp(uuid
, pr
->uuid
))
841 fprintf(stderr
, "extroot: uuid tag does not match rom uuid\n");
847 static int mount_extroot(char *cfg
)
849 char overlay
[] = "/tmp/extroot/overlay";
850 char mnt
[] = "/tmp/extroot/mnt";
852 struct blkid_struct_probe
*pr
;
856 if (config_load(cfg
))
859 m
= find_block(NULL
, NULL
, NULL
, "/");
861 m
= find_block(NULL
, NULL
, NULL
, "/overlay");
863 if (!m
|| !m
->extroot
)
866 pr
= find_block_info(m
->uuid
, m
->label
, NULL
);
868 if (!pr
&& delay_root
){
869 fprintf(stderr
, "extroot: is not ready yet, retrying in %u seconds\n", delay_root
);
873 pr
= find_block_info(m
->uuid
, m
->label
, NULL
);
876 if (strncmp(pr
->id
->name
, "ext", 3)) {
877 fprintf(stderr
, "extroot: %s is not supported, try ext4\n", pr
->id
->name
);
885 check_filesystem(pr
);
887 err
= mount(pr
->dev
, path
, pr
->id
->name
, 0, (m
->options
) ? (m
->options
) : (""));
890 fprintf(stderr
, "mounting %s (%s) as %s failed (%d) - %s\n",
891 pr
->dev
, pr
->id
->name
, path
, err
, strerror(err
));
892 } else if (m
->overlay
) {
893 err
= check_extroot(path
);
902 static int main_extroot(int argc
, char **argv
)
904 struct blkid_struct_probe
*pr
;
906 char fs_data
[32] = { 0 };
909 if (!getenv("PREINIT"))
913 fprintf(stderr
, "Usage: block extroot mountpoint\n");
920 find_block_mtd("rootfs", fs
, sizeof(fs
));
924 pr
= find_block_info(NULL
, NULL
, fs
);
928 find_block_mtd("rootfs_data", fs_data
, sizeof(fs_data
));
930 pr
= find_block_info(NULL
, NULL
, fs_data
);
931 if (pr
&& !strcmp(pr
->id
->name
, "jffs2")) {
932 char cfg
[] = "/tmp/jffs_cfg";
935 if (!mount(fs_data
, cfg
, "jffs2", MS_NOATIME
, NULL
)) {
936 err
= mount_extroot(cfg
);
937 umount2(cfg
, MNT_DETACH
);
940 rmdir("/tmp/overlay");
946 return mount_extroot(NULL
);
949 static int main_mount(int argc
, char **argv
)
951 struct blkid_struct_probe
*pr
;
953 if (config_load(NULL
))
957 list_for_each_entry(pr
, &devices
, list
)
960 handle_swapfiles(true);
965 static int main_umount(int argc
, char **argv
)
967 struct blkid_struct_probe
*pr
;
969 if (config_load(NULL
))
972 handle_swapfiles(false);
975 list_for_each_entry(pr
, &devices
, list
)
981 static int main_detect(int argc
, char **argv
)
983 struct blkid_struct_probe
*pr
;
986 printf("config 'global'\n");
987 printf("\toption\tanon_swap\t'0'\n");
988 printf("\toption\tanon_mount\t'0'\n");
989 printf("\toption\tauto_swap\t'1'\n");
990 printf("\toption\tauto_mount\t'1'\n");
991 printf("\toption\tdelay_root\t'5'\n");
992 printf("\toption\tcheck_fs\t'0'\n\n");
993 list_for_each_entry(pr
, &devices
, list
)
999 static int main_info(int argc
, char **argv
)
1002 struct blkid_struct_probe
*pr
;
1006 list_for_each_entry(pr
, &devices
, list
)
1007 print_block_info(pr
);
1012 for (i
= 2; i
< argc
; i
++) {
1015 if (stat(argv
[i
], &s
)) {
1016 fprintf(stderr
, "failed to stat %s\n", argv
[i
]);
1019 if (!S_ISBLK(s
.st_mode
)) {
1020 fprintf(stderr
, "%s is not a block device\n", argv
[i
]);
1023 pr
= find_block_info(NULL
, NULL
, argv
[i
]);
1025 print_block_info(pr
);
1031 static int main_swapon(int argc
, char **argv
)
1034 fprintf(stderr
, "Usage: swapon <-s> <-a> [DEVICE]\n\n\tStart swapping on [DEVICE]\n -a\tStart swapping on all swap devices\n -s\tShow summary\n");
1038 if (!strcmp(argv
[1], "-s")) {
1039 FILE *fp
= fopen("/proc/swaps", "r");
1040 char *lineptr
= NULL
;
1044 fprintf(stderr
, "failed to open /proc/swaps\n");
1047 while (getline(&lineptr
, &s
, fp
) > 0)
1052 } else if (!strcmp(argv
[1], "-a")) {
1053 struct blkid_struct_probe
*pr
;
1056 list_for_each_entry(pr
, &devices
, list
) {
1057 if (strcmp(pr
->id
->name
, "swap"))
1059 if (swapon(pr
->dev
, 0))
1060 fprintf(stderr
, "failed to swapon %s\n", pr
->dev
);
1066 if (stat(argv
[1], &s
) || (!S_ISBLK(s
.st_mode
) && !S_ISREG(s
.st_mode
))) {
1067 fprintf(stderr
, "%s is not a block device or file\n", argv
[1]);
1070 err
= swapon(argv
[1], 0);
1072 fprintf(stderr
, "failed to swapon %s (%d)\n", argv
[1], err
);
1080 static int main_swapoff(int argc
, char **argv
)
1083 fprintf(stderr
, "Usage: swapoff [-a] [DEVICE]\n\n\tStop swapping on DEVICE\n -a\tStop swapping on all swap devices\n");
1087 if (!strcmp(argv
[1], "-a")) {
1088 FILE *fp
= fopen("/proc/swaps", "r");
1092 fprintf(stderr
, "failed to open /proc/swaps\n");
1095 fgets(line
, sizeof(line
), fp
);
1096 while (fgets(line
, sizeof(line
), fp
)) {
1097 char *end
= strchr(line
, ' ');
1103 err
= swapoff(line
);
1105 fprintf(stderr
, "failed to swapoff %s (%d)\n", line
, err
);
1112 if (stat(argv
[1], &s
) || (!S_ISBLK(s
.st_mode
) && !S_ISREG(s
.st_mode
))) {
1113 fprintf(stderr
, "%s is not a block device or file\n", argv
[1]);
1116 err
= swapoff(argv
[1]);
1118 fprintf(stderr
, "fsiled to swapoff %s (%d)\n", argv
[1], err
);
1126 int main(int argc
, char **argv
)
1128 char *base
= basename(*argv
);
1132 if (!strcmp(base
, "swapon"))
1133 return main_swapon(argc
, argv
);
1135 if (!strcmp(base
, "swapoff"))
1136 return main_swapoff(argc
, argv
);
1138 if ((argc
> 1) && !strcmp(base
, "block")) {
1139 if (!strcmp(argv
[1], "info"))
1140 return main_info(argc
, argv
);
1142 if (!strcmp(argv
[1], "detect"))
1143 return main_detect(argc
, argv
);
1145 if (!strcmp(argv
[1], "hotplug"))
1146 return main_hotplug(argc
, argv
);
1148 if (!strcmp(argv
[1], "extroot"))
1149 return main_extroot(argc
, argv
);
1151 if (!strcmp(argv
[1], "mount"))
1152 return main_mount(argc
, argv
);
1154 if (!strcmp(argv
[1], "umount"))
1155 return main_umount(argc
, argv
);
1158 fprintf(stderr
, "Usage: block <info|mount|umount|detect>\n");