+++ /dev/null
-/*
- * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
- *
- * Inspired by libvolume_id by
- * Kay Sievers <kay.sievers@vrfy.org>
- *
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdint.h>
-
-#include "bitops.h" /* swab16() */
-#include "superblocks.h"
-
-#include <libubox/md5.h>
-
-struct squashfs_super_block {
- uint32_t s_magic;
- uint32_t inodes;
- uint32_t mkfs_time;
- uint32_t block_size;
- uint32_t fragments;
- uint16_t compression;
- uint16_t block_log;
- uint16_t flags;
- uint16_t no_ids;
- uint16_t s_major;
- uint16_t s_minor;
- uint64_t root_inode;
- uint64_t bytes_used;
- uint64_t id_table_start;
- uint64_t xattr_id_table_start;
- uint64_t inode_table_start;
- uint64_t directory_table_start;
- uint64_t fragment_table_start;
- uint64_t lookup_table_start;
-} __attribute__((packed));
-
-static int probe_squashfs(blkid_probe pr, const struct blkid_idmag *mag)
-{
- md5_ctx_t ctx = { 0 };
- uint32_t md5[4];
- struct squashfs_super_block *sq;
-
- sq = blkid_probe_get_sb(pr, mag, struct squashfs_super_block);
- if (!sq)
- return -1;
-
- if (strcmp(mag->magic, "sqsh") == 0 ||
- strcmp(mag->magic, "qshs") == 0)
- blkid_probe_sprintf_version(pr, "%u.%u",
- sq->s_major,
- sq->s_minor);
- else
- blkid_probe_sprintf_version(pr, "%u.%u",
- swab16(sq->s_major),
- swab16(sq->s_minor));
- md5_begin(&ctx);
- md5_hash(sq, sizeof(*sq), &ctx);
- md5_end(&md5, &ctx);
- blkid_probe_sprintf_uuid(pr, NULL, 4, "%08x-%08x-%08x-%08x",
- md5[3], md5[2], md5[1], md5[0]);
- return 0;
-}
-
-const struct blkid_idinfo squashfs_idinfo =
-{
- .name = "squashfs",
- .usage = BLKID_USAGE_FILESYSTEM,
- .probefunc = probe_squashfs,
- .magics =
- {
- { .magic = "sqsh", .len = 4 },
- { .magic = "hsqs", .len = 4 }, /* swap */
-
- /* LZMA version */
- { .magic = "qshs", .len = 4 },
- { .magic = "shsq", .len = 4 }, /* swap */
- { NULL }
- }
-};
-
-