diff options
Diffstat (limited to 'extras/volume_id/lib/squashfs.c')
| -rw-r--r-- | extras/volume_id/lib/squashfs.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/extras/volume_id/lib/squashfs.c b/extras/volume_id/lib/squashfs.c index 99cc78aa41..402a114e1b 100644 --- a/extras/volume_id/lib/squashfs.c +++ b/extras/volume_id/lib/squashfs.c @@ -29,7 +29,15 @@ #define SQUASHFS_MAGIC 0x73717368 struct squashfs_super { - uint32_t s_magic; + uint32_t s_magic; + uint32_t inodes; + uint32_t bytes_used_2; + uint32_t uid_start_2; + uint32_t guid_start_2; + uint32_t inode_table_start_2; + uint32_t directory_table_start_2; + uint16_t s_major; + uint16_t s_minor; } PACKED; int volume_id_probe_squashfs(struct volume_id *id, uint64_t off, uint64_t size) @@ -38,15 +46,25 @@ int volume_id_probe_squashfs(struct volume_id *id, uint64_t off, uint64_t size) info("probing at offset 0x%llx", (unsigned long long) off); - sqs = (struct squashfs_super *) volume_id_get_buffer(id, off + 0x200, 0x200); + sqs = (struct squashfs_super *) volume_id_get_buffer(id, off, 0x200); if (sqs == NULL) return -1; - if (sqs->s_magic == SQUASHFS_MAGIC || sqs->s_magic == bswap_32(SQUASHFS_MAGIC)) { - volume_id_set_usage(id, VOLUME_ID_FILESYSTEM); - id->type = "squashfs"; - return 0; + if (sqs->s_magic == SQUASHFS_MAGIC) { + snprintf(id->type_version, sizeof(id->type_version), "%u.%u", + sqs->s_major, sqs->s_minor); + goto found; + } + if (sqs->s_magic == bswap_32(SQUASHFS_MAGIC)) { + snprintf(id->type_version, sizeof(id->type_version), "%u.%u", + bswap_16(sqs->s_major), bswap_16(sqs->s_minor)); + goto found; } return -1; + +found: + volume_id_set_usage(id, VOLUME_ID_FILESYSTEM); + id->type = "squashfs"; + return 0; } |