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Diffstat (limited to 'extras/volume_id/lib/romfs.c')
-rw-r--r--extras/volume_id/lib/romfs.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/extras/volume_id/lib/romfs.c b/extras/volume_id/lib/romfs.c
new file mode 100644
index 0000000000..8bb2a0018a
--- /dev/null
+++ b/extras/volume_id/lib/romfs.c
@@ -0,0 +1,60 @@
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation version 2 of the License.
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+
+#include "libvolume_id.h"
+#include "util.h"
+
+struct romfs_super {
+ uint8_t magic[8];
+ uint32_t size;
+ uint32_t checksum;
+ uint8_t name[0];
+} PACKED;
+
+int volume_id_probe_romfs(struct volume_id *id, uint64_t off)
+{
+ struct romfs_super *rfs;
+
+ dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+ rfs = (struct romfs_super *) volume_id_get_buffer(id, off, 0x200);
+ if (rfs == NULL)
+ return -1;
+
+ if (memcmp(rfs->magic, "-rom1fs-", 4) == 0) {
+ size_t len = strlen((char *)rfs->name);
+
+ if (len) {
+ volume_id_set_label_raw(id, rfs->name, len);
+ volume_id_set_label_string(id, rfs->name, len);
+ }
+
+ volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+ id->type = "romfs";
+ return 0;
+ }
+
+ return -1;
+}