support for mount by label (not yet tested)

Also adds findfs applet. Closes bug 1143.

1 files changed, 56 insertions, 0 deletions

diff --git a/util-linux/volume_id/nvidia_raid.c b/util-linux/volume_id/nvidia_raid.c
new file mode 100644
index 0000000..8619565
--- /dev/null
+++ b/util-linux/volume_id/nvidia_raid.c
@@ -0,0 +1,56 @@
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ *	This library is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU Lesser General Public
+ *	License as published by the Free Software Foundation; either
+ *	version 2.1 of the License, or (at your option) any later version.
+ *
+ *	This library is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *	Lesser General Public License for more details.
+ *
+ *	You should have received a copy of the GNU Lesser General Public
+ *	License along with this library; if not, write to the Free Software
+ *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "volume_id_internal.h"
+
+struct nvidia_meta {
+	uint8_t		vendor[8];
+	uint32_t	size;
+	uint32_t	chksum;
+	uint16_t	version;
+} __attribute__((packed));
+
+#define NVIDIA_SIGNATURE		"NVIDIA"
+
+int volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size)
+{
+	uint64_t meta_off;
+	struct nvidia_meta *nv;
+
+	dbg("probing at offset 0x%llx, size 0x%llx",
+	    (unsigned long long) off, (unsigned long long) size);
+
+	if (size < 0x10000)
+		return -1;
+
+	meta_off = ((size / 0x200)-2) * 0x200;
+	nv = volume_id_get_buffer(id, off + meta_off, 0x200);
+	if (nv == NULL)
+		return -1;
+
+	if (memcmp(nv->vendor, NVIDIA_SIGNATURE, sizeof(NVIDIA_SIGNATURE)-1) != 0)
+		return -1;
+
+	volume_id_set_usage(id, VOLUME_ID_RAID);
+	snprintf(id->type_version, sizeof(id->type_version)-1, "%u", le16_to_cpu(nv->version));
+	id->type = "nvidia_raid_member";
+
+	return 0;
+}