From 7b4c7a681cc4c0a53dc8a8baf4853e921cfbf5de Mon Sep 17 00:00:00 2001 From: bigbiff Date: Thu, 1 Jan 2015 19:44:14 -0500 Subject: 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 --- libblkid/lvm2.c | 228 -------------------------------------------------------- 1 file changed, 228 deletions(-) delete mode 100644 libblkid/lvm2.c (limited to 'libblkid/lvm2.c') diff --git a/libblkid/lvm2.c b/libblkid/lvm2.c deleted file mode 100644 index 0afc77322..000000000 --- a/libblkid/lvm2.c +++ /dev/null @@ -1,228 +0,0 @@ -/* - * Copyright (C) 1999 by Andries Brouwer - * Copyright (C) 1999, 2000, 2003 by Theodore Ts'o - * Copyright (C) 2001 by Andreas Dilger - * Copyright (C) 2004 Kay Sievers - * Copyright (C) 2008 Karel Zak - * Copyright (C) 2012 Milan Broz - * - * This file may be redistributed under the terms of the - * GNU Lesser General Public License. - */ -#include -#include -#include -#include -#include - -#include "superblocks.h" - -#define LVM1_ID_LEN 128 -#define LVM2_ID_LEN 32 - -struct lvm2_pv_label_header { - /* label_header */ - uint8_t id[8]; /* LABELONE */ - uint64_t sector_xl; /* Sector number of this label */ - uint32_t crc_xl; /* From next field to end of sector */ - uint32_t offset_xl; /* Offset from start of struct to contents */ - uint8_t type[8]; /* LVM2 001 */ - /* pv_header */ - uint8_t pv_uuid[LVM2_ID_LEN]; -} __attribute__ ((packed)); - -struct lvm1_pv_label_header { - uint8_t id[2]; /* HM */ - uint16_t version; /* version 1 or 2 */ - uint32_t _notused[10]; /* lvm1 internals */ - uint8_t pv_uuid[LVM1_ID_LEN]; -} __attribute__ ((packed)); - -#define LVM2_LABEL_SIZE 512 -static unsigned int lvm2_calc_crc(const void *buf, unsigned int size) -{ - static const unsigned int crctab[] = { - 0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac, - 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c, - 0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, - 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c - }; - unsigned int i, crc = 0xf597a6cf; - const uint8_t *data = (const uint8_t *) buf; - - for (i = 0; i < size; i++) { - crc ^= *data++; - crc = (crc >> 4) ^ crctab[crc & 0xf]; - crc = (crc >> 4) ^ crctab[crc & 0xf]; - } - return crc; -} - -/* Length of real UUID is always LVM2_ID_LEN */ -static void format_lvm_uuid(char *dst_uuid, char *src_uuid) -{ - unsigned int i, b; - - for (i = 0, b = 1; i < LVM2_ID_LEN; i++, b <<= 1) { - if (b & 0x4444440) - *dst_uuid++ = '-'; - *dst_uuid++ = *src_uuid++; - } - *dst_uuid = '\0'; -} - -static int probe_lvm2(blkid_probe pr, const struct blkid_idmag *mag) -{ - int sector = mag->kboff << 1; - struct lvm2_pv_label_header *label; - char uuid[LVM2_ID_LEN + 7]; - unsigned char *buf; - - buf = blkid_probe_get_buffer(pr, - mag->kboff << 10, - 512 + sizeof(struct lvm2_pv_label_header)); - if (!buf) - return -1; - - /* buf is at 0k or 1k offset; find label inside */ - if (memcmp(buf, "LABELONE", 8) == 0) { - label = (struct lvm2_pv_label_header *) buf; - } else if (memcmp(buf + 512, "LABELONE", 8) == 0) { - label = (struct lvm2_pv_label_header *)(buf + 512); - sector++; - } else { - return 1; - } - - if (le64_to_cpu(label->sector_xl) != (unsigned) sector) - return 1; - - if (lvm2_calc_crc(&label->offset_xl, LVM2_LABEL_SIZE - - ((char *) &label->offset_xl - (char *) label)) != - le32_to_cpu(label->crc_xl)) { - DBG(DEBUG_PROBE, - printf("LVM2: label checksum incorrect at sector %d\n", - sector)); - return 1; - } - - format_lvm_uuid(uuid, (char *) label->pv_uuid); - blkid_probe_sprintf_uuid(pr, label->pv_uuid, sizeof(label->pv_uuid), - "%s", uuid); - - /* the mag->magic is the same string as label->type, - * but zero terminated */ - blkid_probe_set_version(pr, mag->magic); - - /* LVM (pvcreate) wipes begin of the device -- let's remember this - * to resolve conflicts bettween LVM and partition tables, ... - */ - blkid_probe_set_wiper(pr, 0, 8 * 1024); - - return 0; -} - -static int probe_lvm1(blkid_probe pr, const struct blkid_idmag *mag) -{ - struct lvm1_pv_label_header *label; - char uuid[LVM2_ID_LEN + 7]; - unsigned int version; - - label = blkid_probe_get_sb(pr, mag, struct lvm1_pv_label_header); - if (!label) - return -1; - - version = le16_to_cpu(label->version); - if (version != 1 && version != 2) - return 1; - - format_lvm_uuid(uuid, (char *) label->pv_uuid); - blkid_probe_sprintf_uuid(pr, label->pv_uuid, sizeof(label->pv_uuid), - "%s", uuid); - - return 0; -} - -struct verity_sb { - uint8_t signature[8]; /* "verity\0\0" */ - uint32_t version; /* superblock version */ - uint32_t hash_type; /* 0 - Chrome OS, 1 - normal */ - uint8_t uuid[16]; /* UUID of hash device */ - uint8_t algorithm[32];/* hash algorithm name */ - uint32_t data_block_size; /* data block in bytes */ - uint32_t hash_block_size; /* hash block in bytes */ - uint64_t data_blocks; /* number of data blocks */ - uint16_t salt_size; /* salt size */ - uint8_t _pad1[6]; - uint8_t salt[256]; /* salt */ - uint8_t _pad2[168]; -} __attribute__((packed)); - -static int probe_verity(blkid_probe pr, const struct blkid_idmag *mag) -{ - struct verity_sb *sb; - unsigned int version; - - sb = blkid_probe_get_sb(pr, mag, struct verity_sb); - if (sb == NULL) - return -1; - - version = le32_to_cpu(sb->version); - if (version != 1) - return 1; - - blkid_probe_set_uuid(pr, sb->uuid); - blkid_probe_sprintf_version(pr, "%u", version); - return 0; -} - -/* NOTE: the original libblkid uses "lvm2pv" as a name */ -const struct blkid_idinfo lvm2_idinfo = -{ - .name = "LVM2_member", - .usage = BLKID_USAGE_RAID, - .probefunc = probe_lvm2, - .magics = - { - { .magic = "LVM2 001", .len = 8, .sboff = 0x218 }, - { .magic = "LVM2 001", .len = 8, .sboff = 0x018 }, - { .magic = "LVM2 001", .len = 8, .kboff = 1, .sboff = 0x018 }, - { .magic = "LVM2 001", .len = 8, .kboff = 1, .sboff = 0x218 }, - { NULL } - } -}; - -const struct blkid_idinfo lvm1_idinfo = -{ - .name = "LVM1_member", - .usage = BLKID_USAGE_RAID, - .probefunc = probe_lvm1, - .magics = - { - { .magic = "HM", .len = 2 }, - { NULL } - } -}; - -const struct blkid_idinfo snapcow_idinfo = -{ - .name = "DM_snapshot_cow", - .usage = BLKID_USAGE_OTHER, - .magics = - { - { .magic = "SnAp", .len = 4 }, - { NULL } - } -}; - -const struct blkid_idinfo verity_hash_idinfo = -{ - .name = "DM_verity_hash", - .usage = BLKID_USAGE_CRYPTO, - .probefunc = probe_verity, - .magics = - { - { .magic = "verity\0\0", .len = 8 }, - { NULL } - } -}; -- cgit v1.2.3