From ac164dd2a7b7eefdc146ec2b0d448d029bc07ec0 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Tue, 12 Jun 2012 15:00:35 +0200 Subject: volume_id/ext: use common bb_e2fs_defs.h for ext2/3/4 constants and structs Signed-off-by: Denys Vlasenko --- util-linux/volume_id/ext.c | 74 +++++----------------------------------------- 1 file changed, 7 insertions(+), 67 deletions(-) (limited to 'util-linux/volume_id') diff --git a/util-linux/volume_id/ext.c b/util-linux/volume_id/ext.c index aa23d1ebf..97451067f 100644 --- a/util-linux/volume_id/ext.c +++ b/util-linux/volume_id/ext.c @@ -19,70 +19,10 @@ */ #include "volume_id_internal.h" - -struct ext2_super_block { - uint32_t inodes_count; - uint32_t blocks_count; - uint32_t r_blocks_count; - uint32_t free_blocks_count; - uint32_t free_inodes_count; - uint32_t first_data_block; - uint32_t log_block_size; - uint32_t dummy3[7]; - uint8_t magic[2]; - uint16_t state; - uint32_t dummy5[8]; - uint32_t feature_compat; - uint32_t feature_incompat; - uint32_t feature_ro_compat; - uint8_t uuid[16]; - uint8_t volume_name[16]; -} PACKED; +#include "bb_e2fs_defs.h" #define EXT_SUPERBLOCK_OFFSET 0x400 -/* for s_flags */ -#define EXT2_FLAGS_TEST_FILESYS 0x0004 - -/* for s_feature_compat */ -#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004 - -/* for s_feature_ro_compat */ -#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001 -#define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002 -#define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004 -#define EXT4_FEATURE_RO_COMPAT_HUGE_FILE 0x0008 -#define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010 -#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK 0x0020 -#define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE 0x0040 - -/* for s_feature_incompat */ -#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002 -#define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 -#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 -#define EXT2_FEATURE_INCOMPAT_META_BG 0x0010 -#define EXT4_FEATURE_INCOMPAT_EXTENTS 0x0040 /* extents support */ -#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080 -#define EXT4_FEATURE_INCOMPAT_MMP 0x0100 -#define EXT4_FEATURE_INCOMPAT_FLEX_BG 0x0200 - -#define EXT2_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| \ - EXT2_FEATURE_RO_COMPAT_LARGE_FILE| \ - EXT2_FEATURE_RO_COMPAT_BTREE_DIR) -#define EXT2_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE| \ - EXT2_FEATURE_INCOMPAT_META_BG) -#define EXT2_FEATURE_INCOMPAT_UNSUPPORTED ~EXT2_FEATURE_INCOMPAT_SUPP -#define EXT2_FEATURE_RO_COMPAT_UNSUPPORTED ~EXT2_FEATURE_RO_COMPAT_SUPP - -#define EXT3_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| \ - EXT2_FEATURE_RO_COMPAT_LARGE_FILE| \ - EXT2_FEATURE_RO_COMPAT_BTREE_DIR) -#define EXT3_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE| \ - EXT3_FEATURE_INCOMPAT_RECOVER| \ - EXT2_FEATURE_INCOMPAT_META_BG) -#define EXT3_FEATURE_INCOMPAT_UNSUPPORTED ~EXT3_FEATURE_INCOMPAT_SUPP -#define EXT3_FEATURE_RO_COMPAT_UNSUPPORTED ~EXT3_FEATURE_RO_COMPAT_SUPP - int FAST_FUNC volume_id_probe_ext(struct volume_id *id /*,uint64_t off*/) { #define off ((uint64_t)0) @@ -94,24 +34,24 @@ int FAST_FUNC volume_id_probe_ext(struct volume_id *id /*,uint64_t off*/) if (es == NULL) return -1; - if (es->magic[0] != 0123 || es->magic[1] != 0357) { + if (es->s_magic != cpu_to_le16(EXT2_SUPER_MAGIC)) { dbg("ext: no magic found"); return -1; } // volume_id_set_usage(id, VOLUME_ID_FILESYSTEM); // volume_id_set_label_raw(id, es->volume_name, 16); - volume_id_set_label_string(id, es->volume_name, 16); - volume_id_set_uuid(id, es->uuid, UUID_DCE); + volume_id_set_label_string(id, (void*)es->s_volume_name, 16); + volume_id_set_uuid(id, es->s_uuid, UUID_DCE); dbg("ext: label '%s' uuid '%s'", id->label, id->uuid); #if ENABLE_FEATURE_BLKID_TYPE - if ((es->feature_ro_compat & cpu_to_le32(EXT4_FEATURE_RO_COMPAT_HUGE_FILE | EXT4_FEATURE_RO_COMPAT_DIR_NLINK)) - || (es->feature_incompat & cpu_to_le32(EXT4_FEATURE_INCOMPAT_EXTENTS | EXT4_FEATURE_INCOMPAT_64BIT)) + if ((es->s_feature_ro_compat & cpu_to_le32(EXT4_FEATURE_RO_COMPAT_HUGE_FILE | EXT4_FEATURE_RO_COMPAT_DIR_NLINK)) + || (es->s_feature_incompat & cpu_to_le32(EXT4_FEATURE_INCOMPAT_EXTENTS | EXT4_FEATURE_INCOMPAT_64BIT)) ) { id->type = "ext4"; } - else if (es->feature_compat & cpu_to_le32(EXT3_FEATURE_COMPAT_HAS_JOURNAL)) + else if (es->s_feature_compat & cpu_to_le32(EXT3_FEATURE_COMPAT_HAS_JOURNAL)) id->type = "ext3"; else id->type = "ext2"; -- cgit v1.2.3