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blkid: optional support for TYPE="fstype"

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Adapted from patch created by T4ndeta <t4ndeta@gmail.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-12-30 00:40:11 +01:00
parent 2272129a93
commit 90615a0c5c
21 changed files with 84 additions and 37 deletions
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1
include/volume_id.h
View File

@ -28,3 +28,4 @@ void display_uuid_cache(void);
* *fsname is replaced if device with such UUID or LABEL is found
*/
int resolve_mount_spec(char **fsname);
int add_to_uuid_cache(const char *device);

7
util-linux/Config.src
View File

@ -40,6 +40,13 @@ config BLKID
WARNING:
With all submodules selected, it will add ~8k to busybox.
config FEATURE_BLKID_TYPE
bool "Print filesystem type"
default n
depends on BLKID
help
Show TYPE="filesystem type"
config DMESG
bool "dmesg"
default y

7
util-linux/blkid.c
View File

@ -13,8 +13,13 @@
//TODO: extend to take BLOCKDEV args, and show TYPE="fstype"
int blkid_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int blkid_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
int blkid_main(int argc UNUSED_PARAM, char **argv)
{
while (*++argv) {
/* Note: bogus device names don't cause any error messages */
add_to_uuid_cache(*argv);
}
display_uuid_cache();
return 0;
}

2
util-linux/volume_id/cramfs.c
View File

@ -51,7 +51,7 @@ int FAST_FUNC volume_id_probe_cramfs(struct volume_id *id /*,uint64_t off*/)
volume_id_set_label_string(id, cs->name, 16);
// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
// id->type = "cramfs";
IF_FEATURE_BLKID_TYPE(id->type = "cramfs";)
return 0;
}

10
util-linux/volume_id/ext.c
View File

@ -65,10 +65,12 @@ int FAST_FUNC volume_id_probe_ext(struct volume_id *id /*,uint64_t off*/)
volume_id_set_uuid(id, es->uuid, UUID_DCE);
dbg("ext: label '%s' uuid '%s'", id->label, id->uuid);
// if ((le32_to_cpu(es->feature_compat) & EXT3_FEATURE_COMPAT_HAS_JOURNAL) != 0)
// id->type = "ext3";
// else
// id->type = "ext2";
#if ENABLE_FEATURE_BLKID_TYPE
if ((le32_to_cpu(es->feature_compat) & EXT3_FEATURE_COMPAT_HAS_JOURNAL) != 0)
id->type = "ext3";
else
id->type = "ext2";
#endif
return 0;
}

2
util-linux/volume_id/fat.c
View File

@ -332,7 +332,7 @@ int FAST_FUNC volume_id_probe_vfat(struct volume_id *id /*,uint64_t fat_partitio
ret:
// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
// id->type = "vfat";
IF_FEATURE_BLKID_TYPE(id->type = "vfat";)
return 0;
}

59
util-linux/volume_id/get_devname.c
View File

@ -19,14 +19,22 @@ static struct uuidCache_s {
char *device;
char *label;
char *uc_uuid; /* prefix makes it easier to grep for */
IF_FEATURE_BLKID_TYPE(const char *type;)
} *uuidCache;
#if !ENABLE_FEATURE_BLKID_TYPE
#define get_label_uuid(fd, label, uuid, type) \
get_label_uuid(fd, label, uuid)
#define uuidcache_addentry(device, label, uuid, type) \
uuidcache_addentry(device, label, uuid)
#endif
/* Returns !0 on error.
* Otherwise, returns malloc'ed strings for label and uuid
* (and they can't be NULL, although they can be "").
* NB: closes fd. */
static int
get_label_uuid(int fd, char **label, char **uuid)
get_label_uuid(int fd, char **label, char **uuid, const char **type)
{
int rv = 1;
uint64_t size;
@ -44,7 +52,12 @@ get_label_uuid(int fd, char **label, char **uuid)
if (vid->label[0] != '\0' || vid->uuid[0] != '\0') {
*label = xstrndup(vid->label, sizeof(vid->label));
*uuid = xstrndup(vid->uuid, sizeof(vid->uuid));
#if ENABLE_FEATURE_BLKID_TYPE
*type = vid->type;
dbg("found label '%s', uuid '%s', type '%s'", *label, *uuid, *type);
#else
dbg("found label '%s', uuid '%s'", *label, *uuid);
#endif
rv = 0;
}
ret:
@ -54,7 +67,7 @@ get_label_uuid(int fd, char **label, char **uuid)
/* NB: we take ownership of (malloc'ed) label and uuid */
static void
uuidcache_addentry(char *device, /*int major, int minor,*/ char *label, char *uuid)
uuidcache_addentry(char *device, /*int major, int minor,*/ char *label, char *uuid, const char *type)
{
struct uuidCache_s *last;
@ -72,6 +85,7 @@ uuidcache_addentry(char *device, /*int major, int minor,*/ char *label, char *uu
last->device = device;
last->label = label;
last->uc_uuid = uuid;
IF_FEATURE_BLKID_TYPE(last->type = type;)
}
/* If get_label_uuid() on device_name returns success,
@ -83,10 +97,6 @@ uuidcache_check_device(const char *device,
void *userData UNUSED_PARAM,
int depth UNUSED_PARAM)
{
char *uuid = uuid; /* for compiler */
char *label = label;
int fd;
/* note: this check rejects links to devices, among other nodes */
if (!S_ISBLK(statbuf->st_mode))
return TRUE;
@ -99,21 +109,15 @@ uuidcache_check_device(const char *device,
if (major(statbuf->st_rdev) == 2)
return TRUE;
fd = open(device, O_RDONLY);
if (fd < 0)
return TRUE;
add_to_uuid_cache(device);
/* get_label_uuid() closes fd in all cases (success & failure) */
if (get_label_uuid(fd, &label, &uuid) == 0) {
/* uuidcache_addentry() takes ownership of all three params */
uuidcache_addentry(xstrdup(device), /*ma, mi,*/ label, uuid);
}
return TRUE;
}
static void
uuidcache_init(void)
{
dbg("DBG: uuidCache=%x, uuidCache");
if (uuidCache)
return;
@ -223,11 +227,38 @@ void display_uuid_cache(void)
printf(" LABEL=\"%s\"", u->label);
if (u->uc_uuid[0])
printf(" UUID=\"%s\"", u->uc_uuid);
#if ENABLE_FEATURE_BLKID_TYPE
if (u->type)
printf(" TYPE=\"%s\"", u->type);
#endif
bb_putchar('\n');
u = u->next;
}
}
int add_to_uuid_cache(const char *device)
{
char *uuid = uuid; /* for compiler */
char *label = label;
#if ENABLE_FEATURE_BLKID_TYPE
const char *type = type;
#endif
int fd;
fd = open(device, O_RDONLY);
if (fd < 0)
return 0;
/* get_label_uuid() closes fd in all cases (success & failure) */
if (get_label_uuid(fd, &label, &uuid, &type) == 0) {
/* uuidcache_addentry() takes ownership of all four params */
uuidcache_addentry(xstrdup(device), /*ma, mi,*/ label, uuid, type);
return 1;
}
return 0;
}
/* Used by mount and findfs */
char *get_devname_from_label(const char *spec)

2
util-linux/volume_id/hfs.c
View File

@ -195,7 +195,7 @@ int FAST_FUNC volume_id_probe_hfs_hfsplus(struct volume_id *id /*,uint64_t off*/
volume_id_set_uuid(id, hfs->finder_info.id, UUID_HFS);
// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
// id->type = "hfs";
IF_FEATURE_BLKID_TYPE(id->type = "hfs";)
return 0;

2
util-linux/volume_id/iso9660.c
View File

@ -114,7 +114,7 @@ int FAST_FUNC volume_id_probe_iso9660(struct volume_id *id /*,uint64_t off*/)
found:
// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
// id->type = "iso9660";
IF_FEATURE_BLKID_TYPE(id->type = "iso9660";)
return 0;
}

2
util-linux/volume_id/jfs.c
View File

@ -54,7 +54,7 @@ int FAST_FUNC volume_id_probe_jfs(struct volume_id *id /*,uint64_t off*/)
volume_id_set_uuid(id, js->uuid, UUID_DCE);
// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
// id->type = "jfs";
IF_FEATURE_BLKID_TYPE(id->type = "jfs";)
return 0;
}

2
util-linux/volume_id/linux_raid.c
View File

@ -75,7 +75,7 @@ int FAST_FUNC volume_id_probe_linux_raid(struct volume_id *id /*,uint64_t off*/,
dbg("found raid signature");
// volume_id_set_usage(id, VOLUME_ID_RAID);
// id->type = "linux_raid_member";
IF_FEATURE_BLKID_TYPE(id->type = "linux_raid_member";)
return 0;
}

2
util-linux/volume_id/linux_swap.c
View File

@ -73,7 +73,7 @@ int FAST_FUNC volume_id_probe_linux_swap(struct volume_id *id /*,uint64_t off*/)
found:
// volume_id_set_usage(id, VOLUME_ID_OTHER);
// id->type = "swap";
IF_FEATURE_BLKID_TYPE(id->type = "swap";)
return 0;
}

2
util-linux/volume_id/luks.c
View File

@ -94,7 +94,7 @@ int FAST_FUNC volume_id_probe_luks(struct volume_id *id /*,uint64_t off*/)
// volume_id_set_usage(id, VOLUME_ID_CRYPTO);
volume_id_set_uuid(id, header->uuid, UUID_DCE_STRING);
// id->type = "crypto_LUKS";
IF_FEATURE_BLKID_TYPE(id->type = "crypto_LUKS";)
return 0;
}

2
util-linux/volume_id/ntfs.c
View File

@ -188,7 +188,7 @@ int FAST_FUNC volume_id_probe_ntfs(struct volume_id *id /*,uint64_t off*/)
found:
// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
// id->type = "ntfs";
IF_FEATURE_BLKID_TYPE(id->type = "ntfs";)
return 0;
}

2
util-linux/volume_id/ocfs2.c
View File

@ -101,6 +101,6 @@ int FAST_FUNC volume_id_probe_ocfs2(struct volume_id *id /*,uint64_t off*/)
volume_id_set_label_string(id, os->s_label, OCFS2_MAX_VOL_LABEL_LEN < VOLUME_ID_LABEL_SIZE ?
OCFS2_MAX_VOL_LABEL_LEN : VOLUME_ID_LABEL_SIZE);
volume_id_set_uuid(id, os->s_uuid, UUID_DCE);
// id->type = "ocfs2";
IF_FEATURE_BLKID_TYPE(id->type = "ocfs2";)
return 0;
}

2
util-linux/volume_id/reiserfs.c
View File

@ -107,7 +107,7 @@ int FAST_FUNC volume_id_probe_reiserfs(struct volume_id *id /*,uint64_t off*/)
found:
// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
// id->type = "reiserfs";
IF_FEATURE_BLKID_TYPE(id->type = "reiserfs";)
return 0;
}

2
util-linux/volume_id/romfs.c
View File

@ -47,7 +47,7 @@ int FAST_FUNC volume_id_probe_romfs(struct volume_id *id /*,uint64_t off*/)
}
// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
// id->type = "romfs";
IF_FEATURE_BLKID_TYPE(id->type = "romfs";)
return 0;
}

4
util-linux/volume_id/sysv.c
View File

@ -99,7 +99,7 @@ int FAST_FUNC volume_id_probe_sysv(struct volume_id *id /*,uint64_t off*/)
if (vs->s_magic == cpu_to_le32(SYSV_MAGIC) || vs->s_magic == cpu_to_be32(SYSV_MAGIC)) {
// volume_id_set_label_raw(id, vs->s_fname, 6);
volume_id_set_label_string(id, vs->s_fname, 6);
// id->type = "sysv";
IF_FEATURE_BLKID_TYPE(id->type = "sysv");
goto found;
}
}
@ -112,7 +112,7 @@ int FAST_FUNC volume_id_probe_sysv(struct volume_id *id /*,uint64_t off*/)
if (xs->s_magic == cpu_to_le32(XENIX_MAGIC) || xs->s_magic == cpu_to_be32(XENIX_MAGIC)) {
// volume_id_set_label_raw(id, xs->s_fname, 6);
volume_id_set_label_string(id, xs->s_fname, 6);
// id->type = "xenix";
IF_FEATURE_BLKID_TYPE(id->type = "xenix";)
goto found;
}
}

3
util-linux/volume_id/udf.c
View File

@ -167,7 +167,6 @@ anchor:
found:
// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
// id->type = "udf";
IF_FEATURE_BLKID_TYPE(id->type = "udf";)
return 0;
}

4
util-linux/volume_id/volume_id_internal.h
View File

@ -80,7 +80,9 @@ struct volume_id {
// char type_version[VOLUME_ID_FORMAT_SIZE];
// smallint usage_id;
// const char *usage;
// const char *type;
#if ENABLE_FEATURE_BLKID_TYPE
const char *type;
#endif
};
struct volume_id* FAST_FUNC volume_id_open_node(int fd);

2
util-linux/volume_id/xfs.c
View File

@ -54,7 +54,7 @@ int FAST_FUNC volume_id_probe_xfs(struct volume_id *id /*,uint64_t off*/)
volume_id_set_uuid(id, xs->uuid, UUID_DCE);
// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
// id->type = "xfs";
IF_FEATURE_BLKID_TYPE(id->type = "xfs";)
return 0;
}