volume_id: disable detection routines which are not setting label and uuid anyway

function old new delta static.warn 1 - -1 static.drive_name_string 14 12 -2 static.offsets 8 - -8 static.sectors 10 - -10 fs2 60 48 -12 raid2 16 - -16 uuidcache_init 704 677 -27 raid1 32 - -32 volume_id_probe_all 198 158 -40 volume_id_probe_lvm1 58 - -58 volume_id_probe_highpoint_37x_raid 63 - -63 volume_id_probe_hpfs 67 - -67 volume_id_probe_minix 74 - -74 volume_id_probe_lvm2 78 - -78 volume_id_probe_silicon_medley_raid 97 - -97 volume_id_probe_via_raid 101 - -101 volume_id_probe_highpoint_45x_raid 104 - -104 volume_id_probe_nvidia_raid 108 - -108 volume_id_probe_lsi_mega_raid 108 - -108 volume_id_probe_intel_software_raid 108 - -108 volume_id_probe_ufs 126 - -126 volume_id_probe_promise_fasttrack_raid 144 - -144 ------------------------------------------------------------------------------ (add/remove: 0/18 grow/shrink: 0/4 up/down: 0/-1384) Total: -1384 bytes text data bss dec hex filename 794244 662 7420 802326 c3e16 busybox_old 792698 662 7420 800780 c380c busybox_unstripped
2008-03-17 09:25:05 +00:00
parent c5b737231d
commit d25c33f186
22 changed files with 226 additions and 230 deletions
--- a/util-linux/volume_id/unused_lvm.c
+++ b/util-linux/volume_id/unused_lvm.c
@ -0,0 +1,87 @@
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2004 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 lvm1_super_block {
+	uint8_t	id[2];
+} __attribute__((packed));
+
+struct lvm2_super_block {
+	uint8_t		id[8];
+	uint64_t	sector_xl;
+	uint32_t	crc_xl;
+	uint32_t	offset_xl;
+	uint8_t		type[8];
+} __attribute__((packed));
+
+#define LVM1_SB_OFF			0x400
+
+int volume_id_probe_lvm1(struct volume_id *id, uint64_t off)
+{
+	struct lvm1_super_block *lvm;
+
+	dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+	lvm = volume_id_get_buffer(id, off + LVM1_SB_OFF, 0x800);
+	if (lvm == NULL)
+		return -1;
+
+	if (lvm->id[0] != 'H' || lvm->id[1] != 'M')
+		return -1;
+
+//	volume_id_set_usage(id, VOLUME_ID_RAID);
+//	id->type = "LVM1_member";
+
+	return 0;
+}
+
+#define LVM2_LABEL_ID			"LABELONE"
+#define LVM2LABEL_SCAN_SECTORS		4
+
+int volume_id_probe_lvm2(struct volume_id *id, uint64_t off)
+{
+	const uint8_t *buf;
+	unsigned soff;
+	struct lvm2_super_block *lvm;
+
+	dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+	buf = volume_id_get_buffer(id, off, LVM2LABEL_SCAN_SECTORS * 0x200);
+	if (buf == NULL)
+		return -1;
+
+
+	for (soff = 0; soff < LVM2LABEL_SCAN_SECTORS * 0x200; soff += 0x200) {
+		lvm = (struct lvm2_super_block *) &buf[soff];
+
+		if (memcmp(lvm->id, LVM2_LABEL_ID, 8) == 0)
+			goto found;
+	}
+
+	return -1;
+
+ found:
+//	memcpy(id->type_version, lvm->type, 8);
+//	volume_id_set_usage(id, VOLUME_ID_RAID);
+//	id->type = "LVM2_member";
+
+	return 0;
+}