From de7684a309ad20c1b889d048d741cb1dd52245f7 Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Mon, 18 Feb 2008 21:08:49 +0000 Subject: support for mount by label (not yet tested) Also adds findfs applet. Closes bug 1143. --- util-linux/volume_id/lsi_raid.c | 52 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 util-linux/volume_id/lsi_raid.c (limited to 'util-linux/volume_id/lsi_raid.c') diff --git a/util-linux/volume_id/lsi_raid.c b/util-linux/volume_id/lsi_raid.c new file mode 100644 index 000000000..0eab1c709 --- /dev/null +++ b/util-linux/volume_id/lsi_raid.c @@ -0,0 +1,52 @@ +/* + * volume_id - reads filesystem label and uuid + * + * Copyright (C) 2005 Kay Sievers + * + * 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 lsi_meta { + uint8_t sig[6]; +} __attribute__((packed)); + +#define LSI_SIGNATURE "$XIDE$" + +int volume_id_probe_lsi_mega_raid(struct volume_id *id, uint64_t off, uint64_t size) +{ + uint64_t meta_off; + struct lsi_meta *lsi; + + 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)-1) * 0x200; + lsi = volume_id_get_buffer(id, off + meta_off, 0x200); + if (lsi == NULL) + return -1; + + if (memcmp(lsi->sig, LSI_SIGNATURE, sizeof(LSI_SIGNATURE)-1) != 0) + return -1; + + volume_id_set_usage(id, VOLUME_ID_RAID); + id->type = "lsi_mega_raid_member"; + + return 0; +} -- cgit v1.2.3