c5b737231d
function old new delta uuidcache_init 567 704 +137 findfs_main - 125 +125 packed_usage 23662 23694 +32 static.drive_name_string - 14 +14 applet_names 1815 1822 +7 applet_main 1104 1108 +4 volume_id_open_node 35 38 +3 applet_nameofs 552 554 +2 get_devname_from_label 78 79 +1 applet_install_loc 138 139 +1 volume_id_set_label_unicode16 31 27 -4 volume_id_set_label_string 74 70 -4 get_devname_from_uuid 63 59 -4 fs1 12 8 -4 volume_id_set_unicode16 209 202 -7 volume_id_free_buffer 71 56 -15 free_volume_id 52 37 -15 volume_id_probe_luks 97 79 -18 volume_id_set_usage_part 21 - -21 volume_id_probe_ufs 148 126 -22 volume_id_probe_lsi_mega_raid 131 108 -23 volume_id_probe_highpoint_45x_raid 127 104 -23 volume_id_probe_highpoint_37x_raid 87 63 -24 volume_id_set_usage 28 - -28 volume_id_probe_romfs 121 93 -28 volume_id_set_label_raw 30 - -30 volume_id_probe_promise_fasttrack_raid 174 144 -30 volume_id_set_uuid 373 342 -31 volume_id_probe_xfs 122 91 -31 volume_id_probe_jfs 138 107 -31 volume_id_probe_ocfs2 139 107 -32 volume_id_probe_lvm1 90 58 -32 volume_id_probe_cramfs 106 63 -43 volume_id_probe_via_raid 145 101 -44 volume_id_probe_intel_software_raid 153 108 -45 volume_id_probe_minix 121 74 -47 volume_id_probe_udf 682 632 -50 volume_id_probe_nvidia_raid 158 108 -50 volume_id_probe_lvm2 128 78 -50 volume_id_probe_hpfs 117 67 -50 volume_id_probe_ext 143 93 -50 volume_id_probe_linux_raid 191 139 -52 volume_id_probe_sysv 244 187 -57 volume_id_probe_silicon_medley_raid 158 97 -61 usage_to_string 64 - -64 volume_id_probe_linux_swap 263 198 -65 volume_id_get_buffer 372 307 -65 volume_id_probe_iso9660 412 332 -80 volume_id_probe_hfs_hfsplus 888 806 -82 volume_id_probe_ntfs 396 294 -102 volume_id_probe_vfat 980 872 -108 volume_id_probe_reiserfs 417 268 -149 dev_get_major_minor 175 - -175 uuidcache_check_device 692 499 -193 volume_id_probe_mac_partition_map 697 - -697 ------------------------------------------------------------------------------ (add/remove: 2/6 grow/shrink: 8/39 up/down: 326/-2836) Total: -2510 bytes text data bss dec hex filename 797220 662 7420 805302 c49b6 busybox_old 794244 662 7420 802326 c3e16 busybox_unstripped
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/*
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* volume_id - reads filesystem label and uuid
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*
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* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "volume_id_internal.h"
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struct mdp_super_block {
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uint32_t md_magic;
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uint32_t major_version;
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uint32_t minor_version;
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uint32_t patch_version;
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uint32_t gvalid_words;
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uint32_t set_uuid0;
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uint32_t ctime;
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uint32_t level;
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uint32_t size;
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uint32_t nr_disks;
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uint32_t raid_disks;
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uint32_t md_minor;
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uint32_t not_persistent;
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uint32_t set_uuid1;
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uint32_t set_uuid2;
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uint32_t set_uuid3;
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} __attribute__((packed));
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#define MD_RESERVED_BYTES 0x10000
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#define MD_MAGIC 0xa92b4efc
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int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size)
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{
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uint64_t sboff;
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uint8_t uuid[16];
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struct mdp_super_block *mdp;
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dbg("probing at offset 0x%llx, size 0x%llx",
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(unsigned long long) off, (unsigned long long) size);
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if (size < 0x10000)
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return -1;
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sboff = (size & ~(MD_RESERVED_BYTES - 1)) - MD_RESERVED_BYTES;
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mdp = volume_id_get_buffer(id, off + sboff, 0x800);
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if (mdp == NULL)
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return -1;
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if (mdp->md_magic != cpu_to_le32(MD_MAGIC))
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return -1;
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memcpy(uuid, &mdp->set_uuid0, 4);
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memcpy(&uuid[4], &mdp->set_uuid1, 12);
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volume_id_set_uuid(id, uuid, UUID_DCE);
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// snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u.%u",
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// le32_to_cpu(mdp->major_version),
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// le32_to_cpu(mdp->minor_version),
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// le32_to_cpu(mdp->patch_version));
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dbg("found raid signature");
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// volume_id_set_usage(id, VOLUME_ID_RAID);
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// id->type = "linux_raid_member";
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return 0;
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}
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