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
,
122 static const struct blobmsg_policy swap_policy
[__SWAP_MAX
] = {
123 [SWAP_ENABLE
] = { .name
= "enabled", .type
= BLOBMSG_TYPE_INT32
},
124 [SWAP_UUID
] = { .name
= "uuid", .type
= BLOBMSG_TYPE_STRING
},
125 [SWAP_DEVICE
] = { .name
= "device", .type
= BLOBMSG_TYPE_STRING
},
126 [SWAP_PRIO
] = { .name
= "priority", .type
= BLOBMSG_TYPE_INT32
},
129 static const struct uci_blob_param_list swap_attr_list
= {
130 .n_params
= __SWAP_MAX
,
131 .params
= swap_policy
,
140 # define MS_DIRSYNC (1 << 7)
144 # define MS_RELATIME (1 << 21)
147 #ifndef MS_STRICTATIME
148 # define MS_STRICTATIME (1 << 24)
151 static const struct mount_flag mount_flags
[] = {
152 { "sync", MS_SYNCHRONOUS
},
153 { "async", ~MS_SYNCHRONOUS
},
154 { "dirsync", MS_DIRSYNC
},
155 { "mand", MS_MANDLOCK
},
156 { "nomand", ~MS_MANDLOCK
},
157 { "atime", ~MS_NOATIME
},
158 { "noatime", MS_NOATIME
},
159 { "dev", ~MS_NODEV
},
160 { "nodev", MS_NODEV
},
161 { "diratime", ~MS_NODIRATIME
},
162 { "nodiratime", MS_NODIRATIME
},
163 { "exec", ~MS_NOEXEC
},
164 { "noexec", MS_NOEXEC
},
165 { "suid", ~MS_NOSUID
},
166 { "nosuid", MS_NOSUID
},
167 { "rw", ~MS_RDONLY
},
169 { "relatime", MS_RELATIME
},
170 { "norelatime", ~MS_RELATIME
},
171 { "strictatime", MS_STRICTATIME
},
174 static char *blobmsg_get_strdup(struct blob_attr
*attr
)
179 return strdup(blobmsg_get_string(attr
));
182 static char *blobmsg_get_basename(struct blob_attr
*attr
)
187 return strdup(basename(blobmsg_get_string(attr
)));
190 static void parse_mount_options(struct mount
*m
, char *optstr
)
194 char *p
, *opts
, *last
;
199 if (!optstr
|| !*optstr
)
202 m
->options
= opts
= calloc(1, strlen(optstr
) + 1);
215 for (i
= 0, is_flag
= false; i
< ARRAY_SIZE(mount_flags
); i
++) {
216 if (!strcmp(last
, mount_flags
[i
].name
)) {
217 if (mount_flags
[i
].flag
< 0)
218 m
->flags
&= (uint32_t)mount_flags
[i
].flag
;
220 m
->flags
|= (uint32_t)mount_flags
[i
].flag
;
227 opts
+= sprintf(opts
, "%s%s", (opts
> m
->options
) ? "," : "", last
);
236 static int mount_add(struct uci_section
*s
)
238 struct blob_attr
*tb
[__MOUNT_MAX
] = { 0 };
241 blob_buf_init(&b
, 0);
242 uci_to_blob(&b
, s
, &mount_attr_list
);
243 blobmsg_parse(mount_policy
, __MOUNT_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
245 if (!tb
[MOUNT_LABEL
] && !tb
[MOUNT_UUID
] && !tb
[MOUNT_DEVICE
])
248 if (tb
[MOUNT_ENABLE
] && !blobmsg_get_u32(tb
[MOUNT_ENABLE
]))
251 m
= malloc(sizeof(struct mount
));
252 m
->type
= TYPE_MOUNT
;
253 m
->uuid
= blobmsg_get_strdup(tb
[MOUNT_UUID
]);
254 m
->label
= blobmsg_get_strdup(tb
[MOUNT_LABEL
]);
255 m
->target
= blobmsg_get_strdup(tb
[MOUNT_TARGET
]);
256 m
->device
= blobmsg_get_basename(tb
[MOUNT_DEVICE
]);
258 parse_mount_options(m
, blobmsg_get_strdup(tb
[MOUNT_OPTIONS
]));
260 m
->overlay
= m
->extroot
= 0;
261 if (m
->target
&& !strcmp(m
->target
, "/"))
263 if (m
->target
&& !strcmp(m
->target
, "/overlay"))
264 m
->extroot
= m
->overlay
= 1;
267 vlist_add(&mounts
, &m
->node
, m
->uuid
);
269 vlist_add(&mounts
, &m
->node
, m
->label
);
271 vlist_add(&mounts
, &m
->node
, m
->device
);
276 static int swap_add(struct uci_section
*s
)
278 struct blob_attr
*tb
[__SWAP_MAX
] = { 0 };
281 blob_buf_init(&b
, 0);
282 uci_to_blob(&b
, s
, &swap_attr_list
);
283 blobmsg_parse(swap_policy
, __SWAP_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
285 if (!tb
[SWAP_UUID
] && !tb
[SWAP_DEVICE
])
288 m
= malloc(sizeof(struct mount
));
289 memset(m
, 0, sizeof(struct mount
));
291 m
->uuid
= blobmsg_get_strdup(tb
[SWAP_UUID
]);
292 m
->device
= blobmsg_get_basename(tb
[SWAP_DEVICE
]);
294 m
->prio
= blobmsg_get_u32(tb
[SWAP_PRIO
]);
296 m
->prio
= ((m
->prio
<< SWAP_FLAG_PRIO_SHIFT
) & SWAP_FLAG_PRIO_MASK
) | SWAP_FLAG_PREFER
;
298 if ((!tb
[SWAP_ENABLE
]) || blobmsg_get_u32(tb
[SWAP_ENABLE
]))
299 vlist_add(&mounts
, &m
->node
, (m
->uuid
) ? (m
->uuid
) : (m
->device
));
304 static int global_add(struct uci_section
*s
)
306 struct blob_attr
*tb
[__CFG_MAX
] = { 0 };
308 blob_buf_init(&b
, 0);
309 uci_to_blob(&b
, s
, &config_attr_list
);
310 blobmsg_parse(config_policy
, __CFG_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
312 if ((tb
[CFG_ANON_MOUNT
]) && blobmsg_get_u32(tb
[CFG_ANON_MOUNT
]))
314 if ((tb
[CFG_ANON_SWAP
]) && blobmsg_get_u32(tb
[CFG_ANON_SWAP
]))
317 if ((tb
[CFG_AUTO_MOUNT
]) && blobmsg_get_u32(tb
[CFG_AUTO_MOUNT
]))
319 if ((tb
[CFG_AUTO_SWAP
]) && blobmsg_get_u32(tb
[CFG_AUTO_SWAP
]))
322 if (tb
[CFG_DELAY_ROOT
])
323 delay_root
= blobmsg_get_u32(tb
[CFG_DELAY_ROOT
]);
325 if ((tb
[CFG_CHECK_FS
]) && blobmsg_get_u32(tb
[CFG_CHECK_FS
]))
331 static struct mount
* find_swap(const char *uuid
, const char *device
)
335 vlist_for_each_element(&mounts
, m
, node
) {
336 if (m
->type
!= TYPE_SWAP
)
338 if (uuid
&& m
->uuid
&& !strcmp(m
->uuid
, uuid
))
340 if (device
&& m
->device
&& !strcmp(m
->device
, device
))
347 static struct mount
* find_block(const char *uuid
, const char *label
, const char *device
,
352 vlist_for_each_element(&mounts
, m
, node
) {
353 if (m
->type
!= TYPE_MOUNT
)
355 if (m
->uuid
&& uuid
&& !strcmp(m
->uuid
, uuid
))
357 if (m
->label
&& label
&& !strcmp(m
->label
, label
))
359 if (m
->target
&& target
&& !strcmp(m
->target
, target
))
361 if (m
->device
&& device
&& !strcmp(m
->device
, device
))
368 static void mounts_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
369 struct vlist_node
*node_old
)
373 static int config_load(char *cfg
)
375 struct uci_context
*ctx
;
376 struct uci_package
*pkg
;
377 struct uci_element
*e
;
379 vlist_init(&mounts
, avl_strcmp
, mounts_update
);
381 ctx
= uci_alloc_context();
384 snprintf(path
, 32, "%s/etc/config", cfg
);
385 uci_set_confdir(ctx
, path
);
388 if (uci_load(ctx
, "fstab", &pkg
))
391 vlist_update(&mounts
);
392 uci_foreach_element(&pkg
->sections
, e
) {
393 struct uci_section
*s
= uci_to_section(e
);
395 if (!strcmp(s
->type
, "mount"))
397 if (!strcmp(s
->type
, "swap"))
399 if (!strcmp(s
->type
, "global"))
402 vlist_flush(&mounts
);
407 static int _cache_load(const char *path
)
409 int gl_flags
= GLOB_NOESCAPE
| GLOB_MARK
;
413 if (glob(path
, gl_flags
, NULL
, &gl
) < 0)
416 for (j
= 0; j
< gl
.gl_pathc
; j
++) {
417 struct blkid_struct_probe
*pr
= malloc(sizeof(struct blkid_struct_probe
));
418 memset(pr
, 0, sizeof(struct blkid_struct_probe
));
419 probe_block(gl
.gl_pathv
[j
], pr
);
420 if (pr
->err
|| !pr
->id
)
423 list_add_tail(&pr
->list
, &devices
);
431 static void cache_load(int mtd
)
434 _cache_load("/dev/mtdblock*");
435 _cache_load("/dev/mmcblk*");
436 _cache_load("/dev/sd*");
437 _cache_load("/dev/sdc*");
438 _cache_load("/dev/hd*");
439 _cache_load("/dev/md*");
440 _cache_load("/dev/mapper/*");
443 static int print_block_info(struct blkid_struct_probe
*pr
)
445 printf("%s:", pr
->dev
);
447 printf(" UUID=\"%s\"", pr
->uuid
);
450 printf(" LABEL=\"%s\"", pr
->label
);
453 printf(" NAME=\"%s\"", pr
->name
);
456 printf(" VERSION=\"%s\"", pr
->version
);
458 printf(" TYPE=\"%s\"\n", pr
->id
->name
);
463 static int print_block_uci(struct blkid_struct_probe
*pr
)
465 if (!strcmp(pr
->id
->name
, "swap")) {
466 printf("config 'swap'\n");
468 printf("config 'mount'\n");
469 printf("\toption\ttarget\t'/mnt/%s'\n", basename(pr
->dev
));
472 printf("\toption\tuuid\t'%s'\n", pr
->uuid
);
474 printf("\toption\tdevice\t'%s'\n", pr
->dev
);
475 printf("\toption\tenabled\t'0'\n\n");
480 static struct blkid_struct_probe
* find_block_info(char *uuid
, char *label
, char *path
)
482 struct blkid_struct_probe
*pr
= NULL
;
485 list_for_each_entry(pr
, &devices
, list
)
486 if (!strcmp(pr
->uuid
, uuid
))
490 list_for_each_entry(pr
, &devices
, list
)
491 if (strcmp(pr
->label
, label
))
495 list_for_each_entry(pr
, &devices
, list
)
496 if (!strcmp(pr
->dev
, path
))
502 static char* find_mount_point(char *block
)
504 FILE *fp
= fopen("/proc/mounts", "r");
505 static char line
[256];
506 int len
= strlen(block
);
512 while (fgets(line
, sizeof(line
), fp
)) {
513 if (!strncmp(line
, block
, len
)) {
514 char *p
= &line
[len
+ 1];
515 char *t
= strstr(p
, " ");
530 static void mkdir_p(char *dir
)
532 char *l
= strrchr(dir
, '/');
542 static void check_filesystem(struct blkid_struct_probe
*pr
)
546 char *e2fsck
= "/usr/sbin/e2fsck";
548 if (strncmp(pr
->id
->name
, "ext", 3)) {
549 fprintf(stderr
, "check_filesystem: %s is not supported\n", pr
->id
->name
);
553 if (stat(e2fsck
, &statbuf
) < 0) {
554 fprintf(stderr
, "check_filesystem: %s not found\n", e2fsck
);
560 execl(e2fsck
, e2fsck
, "-p", pr
->dev
, NULL
);
562 } else if (pid
> 0) {
565 waitpid(pid
, &status
, 0);
566 if (WEXITSTATUS(status
))
567 fprintf(stderr
, "check_filesystem: %s returned %d\n", e2fsck
, WEXITSTATUS(status
));
571 static int mount_device(struct blkid_struct_probe
*pr
, int hotplug
)
579 device
= basename(pr
->dev
);
581 if (!strcmp(pr
->id
->name
, "swap")) {
582 if (hotplug
&& !auto_swap
)
584 m
= find_swap(pr
->uuid
, device
);
586 swapon(pr
->dev
, (m
) ? (m
->prio
) : (0));
591 if (hotplug
&& !auto_mount
)
594 if (find_mount_point(pr
->dev
)) {
595 fprintf(stderr
, "%s is already mounted\n", pr
->dev
);
599 m
= find_block(pr
->uuid
, pr
->label
, device
, NULL
);
604 char *target
= m
->target
;
609 snprintf(_target
, sizeof(_target
), "/mnt/%s", device
);
615 check_filesystem(pr
);
617 err
= mount(pr
->dev
, target
, pr
->id
->name
, m
->flags
,
618 (m
->options
) ? (m
->options
) : (""));
620 fprintf(stderr
, "mounting %s (%s) as %s failed (%d) - %s\n",
621 pr
->dev
, pr
->id
->name
, target
, err
, strerror(err
));
626 char target
[] = "/mnt/mmcblk123";
629 snprintf(target
, sizeof(target
), "/mnt/%s", device
);
633 check_filesystem(pr
);
635 err
= mount(pr
->dev
, target
, pr
->id
->name
, 0, "");
637 fprintf(stderr
, "mounting %s (%s) as %s failed (%d) - %s\n",
638 pr
->dev
, pr
->id
->name
, target
, err
, strerror(err
));
645 static int umount_device(struct blkid_struct_probe
*pr
)
648 char *device
= basename(pr
->dev
);
655 if (!strcmp(pr
->id
->name
, "swap"))
658 mp
= find_mount_point(pr
->dev
);
662 m
= find_block(pr
->uuid
, pr
->label
, device
, NULL
);
666 err
= umount2(mp
, MNT_DETACH
);
668 fprintf(stderr
, "unmounting %s (%s) failed (%d) - %s\n",
669 pr
->dev
, mp
, err
, strerror(err
));
671 fprintf(stderr
, "unmounted %s (%s)\n",
677 static int main_hotplug(int argc
, char **argv
)
680 char *action
, *device
, *mount_point
;
682 action
= getenv("ACTION");
683 device
= getenv("DEVNAME");
685 if (!action
|| !device
)
687 snprintf(path
, sizeof(path
), "/dev/%s", device
);
689 if (!strcmp(action
, "remove")) {
691 mount_point
= find_mount_point(path
);
693 err
= umount2(mount_point
, MNT_DETACH
);
696 fprintf(stderr
, "umount of %s failed (%d) - %s\n",
697 mount_point
, err
, strerror(err
));
700 } else if (strcmp(action
, "add")) {
701 fprintf(stderr
, "Unkown action %s\n", action
);
706 if (config_load(NULL
))
710 return mount_device(find_block_info(NULL
, NULL
, path
), 1);
713 static int find_block_mtd(char *name
, char *part
, int plen
)
715 FILE *fp
= fopen("/proc/mtd", "r");
716 static char line
[256];
722 while (!index
&& fgets(line
, sizeof(line
), fp
)) {
723 if (strstr(line
, name
)) {
724 char *eol
= strstr(line
, ":");
739 snprintf(part
, plen
, "/dev/mtdblock%s", index
);
744 static int check_extroot(char *path
)
746 struct blkid_struct_probe
*pr
= NULL
;
749 if (find_block_mtd("rootfs", fs
, sizeof(fs
)))
752 list_for_each_entry(pr
, &devices
, list
) {
753 if (!strcmp(pr
->dev
, fs
)) {
757 char uuid
[64] = { 0 };
759 snprintf(tag
, sizeof(tag
), "%s/etc/.extroot-uuid", path
);
761 fp
= fopen(tag
, "w+");
763 fprintf(stderr
, "extroot: failed to write uuid tag file\n");
764 /* return 0 to continue boot regardless of error */
772 fp
= fopen(tag
, "r");
774 fprintf(stderr
, "extroot: failed to open uuid tag file\n");
778 fgets(uuid
, sizeof(uuid
), fp
);
780 if (!strcmp(uuid
, pr
->uuid
))
782 fprintf(stderr
, "extroot: uuid tag does not match rom uuid\n");
788 static int mount_extroot(char *cfg
)
790 char overlay
[] = "/tmp/extroot/overlay";
791 char mnt
[] = "/tmp/extroot/mnt";
793 struct blkid_struct_probe
*pr
;
797 if (config_load(cfg
))
800 m
= find_block(NULL
, NULL
, NULL
, "/");
802 m
= find_block(NULL
, NULL
, NULL
, "/overlay");
804 if (!m
|| !m
->extroot
)
807 pr
= find_block_info(m
->uuid
, m
->label
, NULL
);
809 if (!pr
&& delay_root
){
810 fprintf(stderr
, "extroot: is not ready yet, retrying in %u seconds\n", delay_root
);
814 pr
= find_block_info(m
->uuid
, m
->label
, NULL
);
817 if (strncmp(pr
->id
->name
, "ext", 3)) {
818 fprintf(stderr
, "extroot: %s is not supported, try ext4\n", pr
->id
->name
);
826 check_filesystem(pr
);
828 err
= mount(pr
->dev
, path
, pr
->id
->name
, 0, (m
->options
) ? (m
->options
) : (""));
831 fprintf(stderr
, "mounting %s (%s) as %s failed (%d) - %s\n",
832 pr
->dev
, pr
->id
->name
, path
, err
, strerror(err
));
833 } else if (m
->overlay
) {
834 err
= check_extroot(path
);
843 static int main_extroot(int argc
, char **argv
)
845 struct blkid_struct_probe
*pr
;
847 char fs_data
[32] = { 0 };
850 if (!getenv("PREINIT"))
854 fprintf(stderr
, "Usage: block extroot mountpoint\n");
861 find_block_mtd("rootfs", fs
, sizeof(fs
));
865 pr
= find_block_info(NULL
, NULL
, fs
);
869 find_block_mtd("rootfs_data", fs_data
, sizeof(fs_data
));
871 pr
= find_block_info(NULL
, NULL
, fs_data
);
872 if (pr
&& !strcmp(pr
->id
->name
, "jffs2")) {
873 char cfg
[] = "/tmp/jffs_cfg";
876 if (!mount(fs_data
, cfg
, "jffs2", MS_NOATIME
, NULL
)) {
877 err
= mount_extroot(cfg
);
878 umount2(cfg
, MNT_DETACH
);
881 rmdir("/tmp/overlay");
887 return mount_extroot(NULL
);
890 static int main_mount(int argc
, char **argv
)
892 struct blkid_struct_probe
*pr
;
894 if (config_load(NULL
))
898 list_for_each_entry(pr
, &devices
, list
)
904 static int main_umount(int argc
, char **argv
)
906 struct blkid_struct_probe
*pr
;
908 if (config_load(NULL
))
912 list_for_each_entry(pr
, &devices
, list
)
918 static int main_detect(int argc
, char **argv
)
920 struct blkid_struct_probe
*pr
;
923 printf("config 'global'\n");
924 printf("\toption\tanon_swap\t'0'\n");
925 printf("\toption\tanon_mount\t'0'\n");
926 printf("\toption\tauto_swap\t'1'\n");
927 printf("\toption\tauto_mount\t'1'\n");
928 printf("\toption\tdelay_root\t'5'\n");
929 printf("\toption\tcheck_fs\t'0'\n\n");
930 list_for_each_entry(pr
, &devices
, list
)
936 static int main_info(int argc
, char **argv
)
939 struct blkid_struct_probe
*pr
;
943 list_for_each_entry(pr
, &devices
, list
)
944 print_block_info(pr
);
949 for (i
= 2; i
< argc
; i
++) {
952 if (stat(argv
[i
], &s
)) {
953 fprintf(stderr
, "failed to stat %s\n", argv
[i
]);
956 if (!S_ISBLK(s
.st_mode
)) {
957 fprintf(stderr
, "%s is not a block device\n", argv
[i
]);
960 pr
= find_block_info(NULL
, NULL
, argv
[i
]);
962 print_block_info(pr
);
968 static int main_swapon(int argc
, char **argv
)
971 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");
975 if (!strcmp(argv
[1], "-s")) {
976 FILE *fp
= fopen("/proc/swaps", "r");
977 char *lineptr
= NULL
;
981 fprintf(stderr
, "failed to open /proc/swaps\n");
984 while (getline(&lineptr
, &s
, fp
) > 0)
989 } else if (!strcmp(argv
[1], "-a")) {
990 struct blkid_struct_probe
*pr
;
993 list_for_each_entry(pr
, &devices
, list
) {
994 if (strcmp(pr
->id
->name
, "swap"))
996 if (swapon(pr
->dev
, 0))
997 fprintf(stderr
, "failed to swapon %s\n", pr
->dev
);
1003 if (stat(argv
[1], &s
) || (!S_ISBLK(s
.st_mode
) && !S_ISREG(s
.st_mode
))) {
1004 fprintf(stderr
, "%s is not a block device or file\n", argv
[1]);
1007 err
= swapon(argv
[1], 0);
1009 fprintf(stderr
, "failed to swapon %s (%d)\n", argv
[1], err
);
1017 static int main_swapoff(int argc
, char **argv
)
1020 fprintf(stderr
, "Usage: swapoff [-a] [DEVICE]\n\n\tStop swapping on DEVICE\n -a\tStop swapping on all swap devices\n");
1024 if (!strcmp(argv
[1], "-a")) {
1025 FILE *fp
= fopen("/proc/swaps", "r");
1029 fprintf(stderr
, "failed to open /proc/swaps\n");
1032 fgets(line
, sizeof(line
), fp
);
1033 while (fgets(line
, sizeof(line
), fp
)) {
1034 char *end
= strchr(line
, ' ');
1040 err
= swapoff(line
);
1042 fprintf(stderr
, "failed to swapoff %s (%d)\n", line
, err
);
1049 if (stat(argv
[1], &s
) || (!S_ISBLK(s
.st_mode
) && !S_ISREG(s
.st_mode
))) {
1050 fprintf(stderr
, "%s is not a block device or file\n", argv
[1]);
1053 err
= swapoff(argv
[1]);
1055 fprintf(stderr
, "fsiled to swapoff %s (%d)\n", argv
[1], err
);
1063 int main(int argc
, char **argv
)
1065 char *base
= basename(*argv
);
1069 if (!strcmp(base
, "swapon"))
1070 return main_swapon(argc
, argv
);
1072 if (!strcmp(base
, "swapoff"))
1073 return main_swapoff(argc
, argv
);
1075 if ((argc
> 1) && !strcmp(base
, "block")) {
1076 if (!strcmp(argv
[1], "info"))
1077 return main_info(argc
, argv
);
1079 if (!strcmp(argv
[1], "detect"))
1080 return main_detect(argc
, argv
);
1082 if (!strcmp(argv
[1], "hotplug"))
1083 return main_hotplug(argc
, argv
);
1085 if (!strcmp(argv
[1], "extroot"))
1086 return main_extroot(argc
, argv
);
1088 if (!strcmp(argv
[1], "mount"))
1089 return main_mount(argc
, argv
);
1091 if (!strcmp(argv
[1], "umount"))
1092 return main_umount(argc
, argv
);
1095 fprintf(stderr
, "Usage: block <info|mount|umount|detect>\n");