Update blkid to 2.25.0
Break libblkid into 4 libraries: libblkid, libuuid, libutil-linux and libfdisk.
This should help in later patch updates.
Change-Id: I680d9a7feb031e5c29a603e9c58aff4b65826262
diff --git a/libblkid/src/superblocks/squashfs.c b/libblkid/src/superblocks/squashfs.c
new file mode 100644
index 0000000..8ed2838
--- /dev/null
+++ b/libblkid/src/superblocks/squashfs.c
@@ -0,0 +1,101 @@
+/*
+ * 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"
+
+struct sqsh_super_block {
+ 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;
+} __attribute__((packed));
+
+static int probe_squashfs(blkid_probe pr, const struct blkid_idmag *mag)
+{
+ struct sqsh_super_block *sq;
+ uint16_t major;
+ uint16_t minor;
+
+ sq = blkid_probe_get_sb(pr, mag, struct sqsh_super_block);
+ if (!sq)
+ return errno ? -errno : 1;
+
+ major = le16_to_cpu(sq->s_major);
+ minor = le16_to_cpu(sq->s_minor);
+ if (major < 4)
+ return 1;
+
+ blkid_probe_sprintf_version(pr, "%u.%u", major, minor);
+
+ return 0;
+}
+
+static int probe_squashfs3(blkid_probe pr, const struct blkid_idmag *mag)
+{
+ struct sqsh_super_block *sq;
+ uint16_t major;
+ uint16_t minor;
+
+ sq = blkid_probe_get_sb(pr, mag, struct sqsh_super_block);
+ if (!sq)
+ return errno ? -errno : 1;
+
+ if (strcmp(mag->magic, "sqsh") == 0) {
+ major = be16_to_cpu(sq->s_major);
+ minor = be16_to_cpu(sq->s_minor);
+ } else {
+ major = le16_to_cpu(sq->s_major);
+ minor = le16_to_cpu(sq->s_minor);
+ }
+
+ if (major > 3)
+ return 1;
+
+ blkid_probe_sprintf_version(pr, "%u.%u", major, minor);
+
+ return 0;
+}
+
+const struct blkid_idinfo squashfs_idinfo =
+{
+ .name = "squashfs",
+ .usage = BLKID_USAGE_FILESYSTEM,
+ .probefunc = probe_squashfs,
+ .magics =
+ {
+ { .magic = "hsqs", .len = 4 },
+ { NULL }
+ }
+};
+
+const struct blkid_idinfo squashfs3_idinfo =
+{
+ .name = "squashfs3",
+ .usage = BLKID_USAGE_FILESYSTEM,
+ .probefunc = probe_squashfs3,
+ .magics =
+ {
+ { .magic = "sqsh", .len = 4 }, /* big endian */
+ { .magic = "hsqs", .len = 4 }, /* little endian */
+ { NULL }
+ }
+};
+