diff options
Diffstat (limited to 'package/busybox/patches/007-upstream_mkfs_ext2_fixes.patch')
-rw-r--r-- | package/busybox/patches/007-upstream_mkfs_ext2_fixes.patch | 1441 |
1 files changed, 0 insertions, 1441 deletions
diff --git a/package/busybox/patches/007-upstream_mkfs_ext2_fixes.patch b/package/busybox/patches/007-upstream_mkfs_ext2_fixes.patch deleted file mode 100644 index 8528ee8..0000000 --- a/package/busybox/patches/007-upstream_mkfs_ext2_fixes.patch +++ /dev/null @@ -1,1441 +0,0 @@ ---- a/e2fsprogs/e2fs_defs.h -+++ /dev/null -@@ -1,561 +0,0 @@ --/* vi: set sw=4 ts=4: */ --/* -- * linux/include/linux/ext2_fs.h -- * -- * Copyright (C) 1992, 1993, 1994, 1995 -- * Remy Card (card@masi.ibp.fr) -- * Laboratoire MASI - Institut Blaise Pascal -- * Universite Pierre et Marie Curie (Paris VI) -- * -- * Copyright (C) 1991, 1992 Linus Torvalds -- */ -- --#ifndef LINUX_EXT2_FS_H --#define LINUX_EXT2_FS_H 1 -- --/* -- * Special inode numbers -- */ --#define EXT2_BAD_INO 1 /* Bad blocks inode */ --#define EXT2_ROOT_INO 2 /* Root inode */ --#define EXT2_ACL_IDX_INO 3 /* ACL inode */ --#define EXT2_ACL_DATA_INO 4 /* ACL inode */ --#define EXT2_BOOT_LOADER_INO 5 /* Boot loader inode */ --#define EXT2_UNDEL_DIR_INO 6 /* Undelete directory inode */ --#define EXT2_RESIZE_INO 7 /* Reserved group descriptors inode */ --#define EXT2_JOURNAL_INO 8 /* Journal inode */ -- --/* First non-reserved inode for old ext2 filesystems */ --#define EXT2_GOOD_OLD_FIRST_INO 11 -- --/* -- * The second extended file system magic number -- */ --#define EXT2_SUPER_MAGIC 0xEF53 -- --/* Assume that user mode programs are passing in an ext2fs superblock, not -- * a kernel struct super_block. This will allow us to call the feature-test -- * macros from user land. */ --#define EXT2_SB(sb) (sb) -- --/* -- * Maximal count of links to a file -- */ --#define EXT2_LINK_MAX 32000 -- --/* -- * Macro-instructions used to manage several block sizes -- */ --#define EXT2_MIN_BLOCK_LOG_SIZE 10 /* 1024 */ --#define EXT2_MAX_BLOCK_LOG_SIZE 16 /* 65536 */ --#define EXT2_MIN_BLOCK_SIZE (1 << EXT2_MIN_BLOCK_LOG_SIZE) --#define EXT2_MAX_BLOCK_SIZE (1 << EXT2_MAX_BLOCK_LOG_SIZE) --#define EXT2_BLOCK_SIZE(s) (EXT2_MIN_BLOCK_SIZE << (s)->s_log_block_size) --#define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10) --#define EXT2_INODE_SIZE(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? \ -- EXT2_GOOD_OLD_INODE_SIZE : (s)->s_inode_size) --#define EXT2_FIRST_INO(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? \ -- EXT2_GOOD_OLD_FIRST_INO : (s)->s_first_ino) --#define EXT2_ADDR_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof(uint32_t)) -- --/* -- * Macro-instructions used to manage fragments -- */ --#define EXT2_MIN_FRAG_SIZE EXT2_MIN_BLOCK_SIZE --#define EXT2_MAX_FRAG_SIZE EXT2_MAX_BLOCK_SIZE --#define EXT2_MIN_FRAG_LOG_SIZE EXT2_MIN_BLOCK_LOG_SIZE --#define EXT2_FRAG_SIZE(s) (EXT2_MIN_FRAG_SIZE << (s)->s_log_frag_size) --#define EXT2_FRAGS_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / EXT2_FRAG_SIZE(s)) -- --/* -- * ACL structures -- */ --struct ext2_acl_header { /* Header of Access Control Lists */ -- uint32_t aclh_size; -- uint32_t aclh_file_count; -- uint32_t aclh_acle_count; -- uint32_t aclh_first_acle; --}; -- --struct ext2_acl_entry { /* Access Control List Entry */ -- uint32_t acle_size; -- uint16_t acle_perms; /* Access permissions */ -- uint16_t acle_type; /* Type of entry */ -- uint16_t acle_tag; /* User or group identity */ -- uint16_t acle_pad1; -- uint32_t acle_next; /* Pointer on next entry for the */ -- /* same inode or on next free entry */ --}; -- --/* -- * Structure of a blocks group descriptor -- */ --struct ext2_group_desc { -- uint32_t bg_block_bitmap; /* Blocks bitmap block */ -- uint32_t bg_inode_bitmap; /* Inodes bitmap block */ -- uint32_t bg_inode_table; /* Inodes table block */ -- uint16_t bg_free_blocks_count; /* Free blocks count */ -- uint16_t bg_free_inodes_count; /* Free inodes count */ -- uint16_t bg_used_dirs_count; /* Directories count */ -- uint16_t bg_pad; -- uint32_t bg_reserved[3]; --}; -- --/* -- * Data structures used by the directory indexing feature -- * -- * Note: all of the multibyte integer fields are little endian. -- */ -- --/* -- * Note: dx_root_info is laid out so that if it should somehow get -- * overlaid by a dirent the two low bits of the hash version will be -- * zero. Therefore, the hash version mod 4 should never be 0. -- * Sincerely, the paranoia department. -- */ --struct ext2_dx_root_info { -- uint32_t reserved_zero; -- uint8_t hash_version; /* 0 now, 1 at release */ -- uint8_t info_length; /* 8 */ -- uint8_t indirect_levels; -- uint8_t unused_flags; --}; -- --#define EXT2_HASH_LEGACY 0 --#define EXT2_HASH_HALF_MD4 1 --#define EXT2_HASH_TEA 2 -- --#define EXT2_HASH_FLAG_INCOMPAT 0x1 -- --struct ext2_dx_entry { -- uint32_t hash; -- uint32_t block; --}; -- --struct ext2_dx_countlimit { -- uint16_t limit; -- uint16_t count; --}; -- -- --/* -- * Macro-instructions used to manage group descriptors -- */ --#define EXT2_BLOCKS_PER_GROUP(s) (EXT2_SB(s)->s_blocks_per_group) --#define EXT2_INODES_PER_GROUP(s) (EXT2_SB(s)->s_inodes_per_group) --#define EXT2_INODES_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s)/EXT2_INODE_SIZE(s)) --/* limits imposed by 16-bit value gd_free_{blocks,inode}_count */ --#define EXT2_MAX_BLOCKS_PER_GROUP(s) ((1 << 16) - 8) --#define EXT2_MAX_INODES_PER_GROUP(s) ((1 << 16) - EXT2_INODES_PER_BLOCK(s)) --#define EXT2_DESC_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (struct ext2_group_desc)) -- --/* -- * Constants relative to the data blocks -- */ --#define EXT2_NDIR_BLOCKS 12 --#define EXT2_IND_BLOCK EXT2_NDIR_BLOCKS --#define EXT2_DIND_BLOCK (EXT2_IND_BLOCK + 1) --#define EXT2_TIND_BLOCK (EXT2_DIND_BLOCK + 1) --#define EXT2_N_BLOCKS (EXT2_TIND_BLOCK + 1) -- --/* -- * Inode flags -- */ --#define EXT2_SECRM_FL 0x00000001 /* Secure deletion */ --#define EXT2_UNRM_FL 0x00000002 /* Undelete */ --#define EXT2_COMPR_FL 0x00000004 /* Compress file */ --#define EXT2_SYNC_FL 0x00000008 /* Synchronous updates */ --#define EXT2_IMMUTABLE_FL 0x00000010 /* Immutable file */ --#define EXT2_APPEND_FL 0x00000020 /* writes to file may only append */ --#define EXT2_NODUMP_FL 0x00000040 /* do not dump file */ --#define EXT2_NOATIME_FL 0x00000080 /* do not update atime */ --/* Reserved for compression usage... */ --#define EXT2_DIRTY_FL 0x00000100 --#define EXT2_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */ --#define EXT2_NOCOMPR_FL 0x00000400 /* Access raw compressed data */ --#define EXT2_ECOMPR_FL 0x00000800 /* Compression error */ --/* End compression flags --- maybe not all used */ --#define EXT2_BTREE_FL 0x00001000 /* btree format dir */ --#define EXT2_INDEX_FL 0x00001000 /* hash-indexed directory */ --#define EXT2_IMAGIC_FL 0x00002000 --#define EXT3_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */ --#define EXT2_NOTAIL_FL 0x00008000 /* file tail should not be merged */ --#define EXT2_DIRSYNC_FL 0x00010000 /* Synchronous directory modifications */ --#define EXT2_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ --#define EXT3_EXTENTS_FL 0x00080000 /* Inode uses extents */ --#define EXT2_RESERVED_FL 0x80000000 /* reserved for ext2 lib */ -- --#define EXT2_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ --#define EXT2_FL_USER_MODIFIABLE 0x000080FF /* User modifiable flags */ -- --/* -- * ioctl commands -- */ --#define EXT2_IOC_GETFLAGS _IOR('f', 1, long) --#define EXT2_IOC_SETFLAGS _IOW('f', 2, long) --#define EXT2_IOC_GETVERSION _IOR('v', 1, long) --#define EXT2_IOC_SETVERSION _IOW('v', 2, long) -- --/* -- * Structure of an inode on the disk -- */ --struct ext2_inode { -- uint16_t i_mode; /* File mode */ -- uint16_t i_uid; /* Low 16 bits of Owner Uid */ -- uint32_t i_size; /* Size in bytes */ -- uint32_t i_atime; /* Access time */ -- uint32_t i_ctime; /* Creation time */ -- uint32_t i_mtime; /* Modification time */ -- uint32_t i_dtime; /* Deletion Time */ -- uint16_t i_gid; /* Low 16 bits of Group Id */ -- uint16_t i_links_count; /* Links count */ -- uint32_t i_blocks; /* Blocks count */ -- uint32_t i_flags; /* File flags */ -- union { -- struct { -- uint32_t l_i_reserved1; -- } linux1; -- struct { -- uint32_t h_i_translator; -- } hurd1; -- struct { -- uint32_t m_i_reserved1; -- } masix1; -- } osd1; /* OS dependent 1 */ -- uint32_t i_block[EXT2_N_BLOCKS];/* Pointers to blocks */ -- uint32_t i_generation; /* File version (for NFS) */ -- uint32_t i_file_acl; /* File ACL */ -- uint32_t i_dir_acl; /* Directory ACL */ -- uint32_t i_faddr; /* Fragment address */ -- union { -- struct { -- uint8_t l_i_frag; /* Fragment number */ -- uint8_t l_i_fsize; /* Fragment size */ -- uint16_t i_pad1; -- uint16_t l_i_uid_high; /* these 2 fields */ -- uint16_t l_i_gid_high; /* were reserved2[0] */ -- uint32_t l_i_reserved2; -- } linux2; -- struct { -- uint8_t h_i_frag; /* Fragment number */ -- uint8_t h_i_fsize; /* Fragment size */ -- uint16_t h_i_mode_high; -- uint16_t h_i_uid_high; -- uint16_t h_i_gid_high; -- uint32_t h_i_author; -- } hurd2; -- struct { -- uint8_t m_i_frag; /* Fragment number */ -- uint8_t m_i_fsize; /* Fragment size */ -- uint16_t m_pad1; -- uint32_t m_i_reserved2[2]; -- } masix2; -- } osd2; /* OS dependent 2 */ --}; -- --/* -- * Permanent part of an large inode on the disk -- */ --struct ext2_inode_large { -- uint16_t i_mode; /* File mode */ -- uint16_t i_uid; /* Low 16 bits of Owner Uid */ -- uint32_t i_size; /* Size in bytes */ -- uint32_t i_atime; /* Access time */ -- uint32_t i_ctime; /* Creation time */ -- uint32_t i_mtime; /* Modification time */ -- uint32_t i_dtime; /* Deletion Time */ -- uint16_t i_gid; /* Low 16 bits of Group Id */ -- uint16_t i_links_count; /* Links count */ -- uint32_t i_blocks; /* Blocks count */ -- uint32_t i_flags; /* File flags */ -- union { -- struct { -- uint32_t l_i_reserved1; -- } linux1; -- struct { -- uint32_t h_i_translator; -- } hurd1; -- struct { -- uint32_t m_i_reserved1; -- } masix1; -- } osd1; /* OS dependent 1 */ -- uint32_t i_block[EXT2_N_BLOCKS];/* Pointers to blocks */ -- uint32_t i_generation; /* File version (for NFS) */ -- uint32_t i_file_acl; /* File ACL */ -- uint32_t i_dir_acl; /* Directory ACL */ -- uint32_t i_faddr; /* Fragment address */ -- union { -- struct { -- uint8_t l_i_frag; /* Fragment number */ -- uint8_t l_i_fsize; /* Fragment size */ -- uint16_t i_pad1; -- uint16_t l_i_uid_high; /* these 2 fields */ -- uint16_t l_i_gid_high; /* were reserved2[0] */ -- uint32_t l_i_reserved2; -- } linux2; -- struct { -- uint8_t h_i_frag; /* Fragment number */ -- uint8_t h_i_fsize; /* Fragment size */ -- uint16_t h_i_mode_high; -- uint16_t h_i_uid_high; -- uint16_t h_i_gid_high; -- uint32_t h_i_author; -- } hurd2; -- struct { -- uint8_t m_i_frag; /* Fragment number */ -- uint8_t m_i_fsize; /* Fragment size */ -- uint16_t m_pad1; -- uint32_t m_i_reserved2[2]; -- } masix2; -- } osd2; /* OS dependent 2 */ -- uint16_t i_extra_isize; -- uint16_t i_pad1; --}; -- --#define i_size_high i_dir_acl -- --/* -- * File system states -- */ --#define EXT2_VALID_FS 0x0001 /* Unmounted cleanly */ --#define EXT2_ERROR_FS 0x0002 /* Errors detected */ -- --/* -- * Mount flags -- */ --#define EXT2_MOUNT_CHECK 0x0001 /* Do mount-time checks */ --#define EXT2_MOUNT_GRPID 0x0004 /* Create files with directory's group */ --#define EXT2_MOUNT_DEBUG 0x0008 /* Some debugging messages */ --#define EXT2_MOUNT_ERRORS_CONT 0x0010 /* Continue on errors */ --#define EXT2_MOUNT_ERRORS_RO 0x0020 /* Remount fs ro on errors */ --#define EXT2_MOUNT_ERRORS_PANIC 0x0040 /* Panic on errors */ --#define EXT2_MOUNT_MINIX_DF 0x0080 /* Mimics the Minix statfs */ --#define EXT2_MOUNT_NO_UID32 0x0200 /* Disable 32-bit UIDs */ -- --#define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt --#define set_opt(o, opt) o |= EXT2_MOUNT_##opt --#define test_opt(sb, opt) (EXT2_SB(sb)->s_mount_opt & \ -- EXT2_MOUNT_##opt) --/* -- * Maximal mount counts between two filesystem checks -- */ --#define EXT2_DFL_MAX_MNT_COUNT 20 /* Allow 20 mounts */ --#define EXT2_DFL_CHECKINTERVAL 0 /* Don't use interval check */ -- --/* -- * Behaviour when detecting errors -- */ --#define EXT2_ERRORS_CONTINUE 1 /* Continue execution */ --#define EXT2_ERRORS_RO 2 /* Remount fs read-only */ --#define EXT2_ERRORS_PANIC 3 /* Panic */ --#define EXT2_ERRORS_DEFAULT EXT2_ERRORS_CONTINUE -- --/* -- * Structure of the super block -- */ --struct ext2_super_block { -- uint32_t s_inodes_count; /* Inodes count */ -- uint32_t s_blocks_count; /* Blocks count */ -- uint32_t s_r_blocks_count; /* Reserved blocks count */ -- uint32_t s_free_blocks_count; /* Free blocks count */ -- uint32_t s_free_inodes_count; /* Free inodes count */ -- uint32_t s_first_data_block; /* First Data Block */ -- uint32_t s_log_block_size; /* Block size */ -- int32_t s_log_frag_size; /* Fragment size */ -- uint32_t s_blocks_per_group; /* # Blocks per group */ -- uint32_t s_frags_per_group; /* # Fragments per group */ -- uint32_t s_inodes_per_group; /* # Inodes per group */ -- uint32_t s_mtime; /* Mount time */ -- uint32_t s_wtime; /* Write time */ -- uint16_t s_mnt_count; /* Mount count */ -- int16_t s_max_mnt_count; /* Maximal mount count */ -- uint16_t s_magic; /* Magic signature */ -- uint16_t s_state; /* File system state */ -- uint16_t s_errors; /* Behaviour when detecting errors */ -- uint16_t s_minor_rev_level; /* minor revision level */ -- uint32_t s_lastcheck; /* time of last check */ -- uint32_t s_checkinterval; /* max. time between checks */ -- uint32_t s_creator_os; /* OS */ -- uint32_t s_rev_level; /* Revision level */ -- uint16_t s_def_resuid; /* Default uid for reserved blocks */ -- uint16_t s_def_resgid; /* Default gid for reserved blocks */ -- /* -- * These fields are for EXT2_DYNAMIC_REV superblocks only. -- * -- * Note: the difference between the compatible feature set and -- * the incompatible feature set is that if there is a bit set -- * in the incompatible feature set that the kernel doesn't -- * know about, it should refuse to mount the filesystem. -- * -- * e2fsck's requirements are more strict; if it doesn't know -- * about a feature in either the compatible or incompatible -- * feature set, it must abort and not try to meddle with -- * things it doesn't understand... -- */ -- uint32_t s_first_ino; /* First non-reserved inode */ -- uint16_t s_inode_size; /* size of inode structure */ -- uint16_t s_block_group_nr; /* block group # of this superblock */ -- uint32_t s_feature_compat; /* compatible feature set */ -- uint32_t s_feature_incompat; /* incompatible feature set */ -- uint32_t s_feature_ro_compat; /* readonly-compatible feature set */ -- uint8_t s_uuid[16]; /* 128-bit uuid for volume */ -- char s_volume_name[16]; /* volume name */ -- char s_last_mounted[64]; /* directory where last mounted */ -- uint32_t s_algorithm_usage_bitmap; /* For compression */ -- /* -- * Performance hints. Directory preallocation should only -- * happen if the EXT2_FEATURE_COMPAT_DIR_PREALLOC flag is on. -- */ -- uint8_t s_prealloc_blocks; /* Nr of blocks to try to preallocate*/ -- uint8_t s_prealloc_dir_blocks; /* Nr to preallocate for dirs */ -- uint16_t s_reserved_gdt_blocks; /* Per group table for online growth */ -- /* -- * Journaling support valid if EXT2_FEATURE_COMPAT_HAS_JOURNAL set. -- */ -- uint8_t s_journal_uuid[16]; /* uuid of journal superblock */ -- uint32_t s_journal_inum; /* inode number of journal file */ -- uint32_t s_journal_dev; /* device number of journal file */ -- uint32_t s_last_orphan; /* start of list of inodes to delete */ -- uint32_t s_hash_seed[4]; /* HTREE hash seed */ -- uint8_t s_def_hash_version; /* Default hash version to use */ -- uint8_t s_jnl_backup_type; /* Default type of journal backup */ -- uint16_t s_reserved_word_pad; -- uint32_t s_default_mount_opts; -- uint32_t s_first_meta_bg; /* First metablock group */ -- uint32_t s_mkfs_time; /* When the filesystem was created */ -- uint32_t s_jnl_blocks[17]; /* Backup of the journal inode */ -- uint32_t s_reserved[172]; /* Padding to the end of the block */ --}; -- --/* -- * Codes for operating systems -- */ --#define EXT2_OS_LINUX 0 --#define EXT2_OS_HURD 1 --#define EXT2_OS_MASIX 2 --#define EXT2_OS_FREEBSD 3 --#define EXT2_OS_LITES 4 -- --/* -- * Revision levels -- */ --#define EXT2_GOOD_OLD_REV 0 /* The good old (original) format */ --#define EXT2_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */ -- --#define EXT2_CURRENT_REV EXT2_GOOD_OLD_REV --#define EXT2_MAX_SUPP_REV EXT2_DYNAMIC_REV -- --#define EXT2_GOOD_OLD_INODE_SIZE 128 -- --/* -- * Journal inode backup types -- */ --#define EXT3_JNL_BACKUP_BLOCKS 1 -- --/* -- * Feature set definitions -- */ -- --#define EXT2_HAS_COMPAT_FEATURE(sb,mask) \ -- ( EXT2_SB(sb)->s_feature_compat & (mask) ) --#define EXT2_HAS_RO_COMPAT_FEATURE(sb,mask) \ -- ( EXT2_SB(sb)->s_feature_ro_compat & (mask) ) --#define EXT2_HAS_INCOMPAT_FEATURE(sb,mask) \ -- ( EXT2_SB(sb)->s_feature_incompat & (mask) ) -- --#define EXT2_FEATURE_COMPAT_DIR_PREALLOC 0x0001 --#define EXT2_FEATURE_COMPAT_IMAGIC_INODES 0x0002 --#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004 --#define EXT2_FEATURE_COMPAT_EXT_ATTR 0x0008 --#define EXT2_FEATURE_COMPAT_RESIZE_INODE 0x0010 --#define EXT2_FEATURE_COMPAT_DIR_INDEX 0x0020 -- --#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001 --#define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002 --/* #define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004 not used */ -- --#define EXT2_FEATURE_INCOMPAT_COMPRESSION 0x0001 --#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002 --#define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */ --#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */ --#define EXT2_FEATURE_INCOMPAT_META_BG 0x0010 --#define EXT3_FEATURE_INCOMPAT_EXTENTS 0x0040 -- -- --#define EXT2_FEATURE_COMPAT_SUPP 0 --#define EXT2_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE) --#define EXT2_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| \ -- EXT2_FEATURE_RO_COMPAT_LARGE_FILE| \ -- EXT2_FEATURE_RO_COMPAT_BTREE_DIR) -- --/* -- * Default values for user and/or group using reserved blocks -- */ --#define EXT2_DEF_RESUID 0 --#define EXT2_DEF_RESGID 0 -- --/* -- * Default mount options -- */ --#define EXT2_DEFM_DEBUG 0x0001 --#define EXT2_DEFM_BSDGROUPS 0x0002 --#define EXT2_DEFM_XATTR_USER 0x0004 --#define EXT2_DEFM_ACL 0x0008 --#define EXT2_DEFM_UID16 0x0010 --#define EXT3_DEFM_JMODE 0x0060 --#define EXT3_DEFM_JMODE_DATA 0x0020 --#define EXT3_DEFM_JMODE_ORDERED 0x0040 --#define EXT3_DEFM_JMODE_WBACK 0x0060 -- --/* -- * Structure of a directory entry -- */ --#define EXT2_NAME_LEN 255 -- --struct ext2_dir_entry { -- uint32_t inode; /* Inode number */ -- uint16_t rec_len; /* Directory entry length */ -- uint16_t name_len; /* Name length */ -- char name[EXT2_NAME_LEN]; /* File name */ --}; -- --/* -- * The new version of the directory entry. Since EXT2 structures are -- * stored in intel byte order, and the name_len field could never be -- * bigger than 255 chars, it's safe to reclaim the extra byte for the -- * file_type field. -- */ --struct ext2_dir_entry_2 { -- uint32_t inode; /* Inode number */ -- uint16_t rec_len; /* Directory entry length */ -- uint8_t name_len; /* Name length */ -- uint8_t file_type; -- char name[EXT2_NAME_LEN]; /* File name */ --}; -- --/* -- * Ext2 directory file types. Only the low 3 bits are used. The -- * other bits are reserved for now. -- */ --#define EXT2_FT_UNKNOWN 0 --#define EXT2_FT_REG_FILE 1 --#define EXT2_FT_DIR 2 --#define EXT2_FT_CHRDEV 3 --#define EXT2_FT_BLKDEV 4 --#define EXT2_FT_FIFO 5 --#define EXT2_FT_SOCK 6 --#define EXT2_FT_SYMLINK 7 -- --#define EXT2_FT_MAX 8 -- --/* -- * EXT2_DIR_PAD defines the directory entries boundaries -- * -- * NOTE: It must be a multiple of 4 -- */ --#define EXT2_DIR_PAD 4 --#define EXT2_DIR_ROUND (EXT2_DIR_PAD - 1) --#define EXT2_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT2_DIR_ROUND) & \ -- ~EXT2_DIR_ROUND) -- --#endif ---- a/e2fsprogs/e2fs_lib.h -+++ b/e2fsprogs/e2fs_lib.h -@@ -7,7 +7,7 @@ - */ - - /* Constants and structures */ --#include "e2fs_defs.h" -+#include "bb_e2fs_defs.h" - - PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN - ---- a/e2fsprogs/old_e2fsprogs/e2fsck.c -+++ b/e2fsprogs/old_e2fsprogs/e2fsck.c -@@ -11577,7 +11577,7 @@ static void check_resize_inode(e2fsck_t - * s_reserved_gdt_blocks must be zero. - */ - if (!(fs->super->s_feature_compat & -- EXT2_FEATURE_COMPAT_RESIZE_INODE)) { -+ EXT2_FEATURE_COMPAT_RESIZE_INO)) { - if (fs->super->s_reserved_gdt_blocks) { - pctx.num = fs->super->s_reserved_gdt_blocks; - if (fix_problem(ctx, PR_0_NONZERO_RESERVED_GDT_BLOCKS, -@@ -11593,7 +11593,7 @@ static void check_resize_inode(e2fsck_t - retval = ext2fs_read_inode(fs, EXT2_RESIZE_INO, &inode); - if (retval) { - if (fs->super->s_feature_compat & -- EXT2_FEATURE_COMPAT_RESIZE_INODE) -+ EXT2_FEATURE_COMPAT_RESIZE_INO) - ctx->flags |= E2F_FLAG_RESIZE_INODE; - return; - } -@@ -11603,7 +11603,7 @@ static void check_resize_inode(e2fsck_t - * the resize inode is cleared; then we're done. - */ - if (!(fs->super->s_feature_compat & -- EXT2_FEATURE_COMPAT_RESIZE_INODE)) { -+ EXT2_FEATURE_COMPAT_RESIZE_INO)) { - for (i=0; i < EXT2_N_BLOCKS; i++) { - if (inode.i_block[i]) - break; ---- a/e2fsprogs/old_e2fsprogs/e2p/feature.c -+++ b/e2fsprogs/old_e2fsprogs/e2p/feature.c -@@ -34,7 +34,7 @@ static const struct feature feature_list - "ext_attr" }, - { E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX, - "dir_index" }, -- { E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_RESIZE_INODE, -+ { E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_RESIZE_INO, - "resize_inode" }, - { E2P_FEATURE_RO_INCOMPAT, EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER, - "sparse_super" }, ---- a/e2fsprogs/old_e2fsprogs/ext2fs/ext2_fs.h -+++ b/e2fsprogs/old_e2fsprogs/ext2fs/ext2_fs.h -@@ -475,7 +475,7 @@ struct ext2_super_block { - #define EXT2_FEATURE_COMPAT_IMAGIC_INODES 0x0002 - #define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004 - #define EXT2_FEATURE_COMPAT_EXT_ATTR 0x0008 --#define EXT2_FEATURE_COMPAT_RESIZE_INODE 0x0010 -+#define EXT2_FEATURE_COMPAT_RESIZE_INO 0x0010 - #define EXT2_FEATURE_COMPAT_DIR_INDEX 0x0020 - - #define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001 ---- a/e2fsprogs/old_e2fsprogs/ext2fs/ext2fs.h -+++ b/e2fsprogs/old_e2fsprogs/ext2fs/ext2fs.h -@@ -383,7 +383,7 @@ typedef struct ext2_icount *ext2_icount_ - #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\ - EXT2_FEATURE_COMPAT_IMAGIC_INODES|\ - EXT3_FEATURE_COMPAT_HAS_JOURNAL|\ -- EXT2_FEATURE_COMPAT_RESIZE_INODE|\ -+ EXT2_FEATURE_COMPAT_RESIZE_INO|\ - EXT2_FEATURE_COMPAT_DIR_INDEX|\ - EXT2_FEATURE_COMPAT_EXT_ATTR) - ---- a/e2fsprogs/old_e2fsprogs/ext2fs/initialize.c -+++ b/e2fsprogs/old_e2fsprogs/ext2fs/initialize.c -@@ -284,7 +284,7 @@ retry: - /* - * check the number of reserved group descriptor table blocks - */ -- if (super->s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) -+ if (super->s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INO) - rsv_gdt = calc_reserved_gdt_blocks(fs); - else - rsv_gdt = 0; ---- a/e2fsprogs/old_e2fsprogs/mke2fs.c -+++ b/e2fsprogs/old_e2fsprogs/mke2fs.c -@@ -757,7 +757,7 @@ static void parse_extended_opts(struct e - - if (rsv_gdb > 0) { - sb_param->s_feature_compat |= -- EXT2_FEATURE_COMPAT_RESIZE_INODE; -+ EXT2_FEATURE_COMPAT_RESIZE_INO; - - sb_param->s_reserved_gdt_blocks = rsv_gdb; - } -@@ -778,7 +778,7 @@ static void parse_extended_opts(struct e - - static __u32 ok_features[3] = { - EXT3_FEATURE_COMPAT_HAS_JOURNAL | -- EXT2_FEATURE_COMPAT_RESIZE_INODE | -+ EXT2_FEATURE_COMPAT_RESIZE_INO | - EXT2_FEATURE_COMPAT_DIR_INDEX, /* Compat */ - EXT2_FEATURE_INCOMPAT_FILETYPE| /* Incompat */ - EXT3_FEATURE_INCOMPAT_JOURNAL_DEV| -@@ -1123,7 +1123,7 @@ static int PRS(int argc, char **argv) - /* Since sparse_super is the default, we would only have a problem - * here if it was explicitly disabled. - */ -- if ((param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) && -+ if ((param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INO) && - !(param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) { - bb_error_msg_and_die("reserved online resize blocks not supported " - "on non-sparse filesystem"); -@@ -1312,7 +1312,7 @@ int mke2fs_main (int argc, char **argv) - reserve_inodes(fs); - create_bad_block_inode(fs, bb_list); - if (fs->super->s_feature_compat & -- EXT2_FEATURE_COMPAT_RESIZE_INODE) { -+ EXT2_FEATURE_COMPAT_RESIZE_INO) { - retval = ext2fs_create_resize_inode(fs); - mke2fs_error_msg_and_die(retval, "reserve blocks for online resize"); - } ---- a/e2fsprogs/tune2fs.c -+++ b/e2fsprogs/tune2fs.c -@@ -8,7 +8,7 @@ - */ - #include "libbb.h" - #include <linux/fs.h> --#include <linux/ext2_fs.h> -+#include "bb_e2fs_defs.h" - - // storage helpers - char BUG_wrong_field_size(void); ---- /dev/null -+++ b/include/bb_e2fs_defs.h -@@ -0,0 +1,602 @@ -+/* vi: set sw=4 ts=4: */ -+/* -+ * linux/include/linux/ext2_fs.h -+ * -+ * Copyright (C) 1992, 1993, 1994, 1995 -+ * Remy Card (card@masi.ibp.fr) -+ * Laboratoire MASI - Institut Blaise Pascal -+ * Universite Pierre et Marie Curie (Paris VI) -+ * -+ * Copyright (C) 1991, 1992 Linus Torvalds -+ */ -+ -+#ifndef LINUX_EXT2_FS_H -+#define LINUX_EXT2_FS_H 1 -+ -+/* -+ * Special inode numbers -+ */ -+#define EXT2_BAD_INO 1 /* Bad blocks inode */ -+#define EXT2_ROOT_INO 2 /* Root inode */ -+#define EXT2_ACL_IDX_INO 3 /* ACL inode */ -+#define EXT2_ACL_DATA_INO 4 /* ACL inode */ -+#define EXT2_BOOT_LOADER_INO 5 /* Boot loader inode */ -+#define EXT2_UNDEL_DIR_INO 6 /* Undelete directory inode */ -+#define EXT2_RESIZE_INO 7 /* Reserved group descriptors inode */ -+#define EXT2_JOURNAL_INO 8 /* Journal inode */ -+ -+/* First non-reserved inode for old ext2 filesystems */ -+#define EXT2_GOOD_OLD_FIRST_INO 11 -+ -+/* -+ * The second extended file system magic number -+ */ -+#define EXT2_SUPER_MAGIC 0xEF53 -+ -+/* Assume that user mode programs are passing in an ext2fs superblock, not -+ * a kernel struct super_block. This will allow us to call the feature-test -+ * macros from user land. */ -+#define EXT2_SB(sb) (sb) -+ -+/* -+ * Maximal count of links to a file -+ */ -+#define EXT2_LINK_MAX 32000 -+ -+/* -+ * Macro-instructions used to manage several block sizes -+ */ -+#define EXT2_MIN_BLOCK_LOG_SIZE 10 /* 1024 */ -+#define EXT2_MAX_BLOCK_LOG_SIZE 16 /* 65536 */ -+#define EXT2_MIN_BLOCK_SIZE (1 << EXT2_MIN_BLOCK_LOG_SIZE) -+#define EXT2_MAX_BLOCK_SIZE (1 << EXT2_MAX_BLOCK_LOG_SIZE) -+#define EXT2_BLOCK_SIZE(s) (EXT2_MIN_BLOCK_SIZE << (s)->s_log_block_size) -+#define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10) -+#define EXT2_INODE_SIZE(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? \ -+ EXT2_GOOD_OLD_INODE_SIZE : (s)->s_inode_size) -+#define EXT2_FIRST_INO(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? \ -+ EXT2_GOOD_OLD_FIRST_INO : (s)->s_first_ino) -+#define EXT2_ADDR_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof(uint32_t)) -+ -+/* -+ * Macro-instructions used to manage fragments -+ */ -+#define EXT2_MIN_FRAG_SIZE EXT2_MIN_BLOCK_SIZE -+#define EXT2_MAX_FRAG_SIZE EXT2_MAX_BLOCK_SIZE -+#define EXT2_MIN_FRAG_LOG_SIZE EXT2_MIN_BLOCK_LOG_SIZE -+#define EXT2_FRAG_SIZE(s) (EXT2_MIN_FRAG_SIZE << (s)->s_log_frag_size) -+#define EXT2_FRAGS_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / EXT2_FRAG_SIZE(s)) -+ -+/* -+ * ACL structures -+ */ -+struct ext2_acl_header { /* Header of Access Control Lists */ -+ uint32_t aclh_size; -+ uint32_t aclh_file_count; -+ uint32_t aclh_acle_count; -+ uint32_t aclh_first_acle; -+}; -+ -+struct ext2_acl_entry { /* Access Control List Entry */ -+ uint32_t acle_size; -+ uint16_t acle_perms; /* Access permissions */ -+ uint16_t acle_type; /* Type of entry */ -+ uint16_t acle_tag; /* User or group identity */ -+ uint16_t acle_pad1; -+ uint32_t acle_next; /* Pointer on next entry for the */ -+ /* same inode or on next free entry */ -+}; -+ -+/* -+ * Structure of a blocks group descriptor -+ */ -+struct ext2_group_desc { -+ uint32_t bg_block_bitmap; /* Blocks bitmap block */ -+ uint32_t bg_inode_bitmap; /* Inodes bitmap block */ -+ uint32_t bg_inode_table; /* Inodes table block */ -+ uint16_t bg_free_blocks_count; /* Free blocks count */ -+ uint16_t bg_free_inodes_count; /* Free inodes count */ -+ uint16_t bg_used_dirs_count; /* Directories count */ -+ uint16_t bg_pad; -+ uint32_t bg_reserved[3]; -+}; -+ -+/* -+ * Data structures used by the directory indexing feature -+ * -+ * Note: all of the multibyte integer fields are little endian. -+ */ -+ -+/* -+ * Note: dx_root_info is laid out so that if it should somehow get -+ * overlaid by a dirent the two low bits of the hash version will be -+ * zero. Therefore, the hash version mod 4 should never be 0. -+ * Sincerely, the paranoia department. -+ */ -+struct ext2_dx_root_info { -+ uint32_t reserved_zero; -+ uint8_t hash_version; /* 0 now, 1 at release */ -+ uint8_t info_length; /* 8 */ -+ uint8_t indirect_levels; -+ uint8_t unused_flags; -+}; -+ -+#define EXT2_HASH_LEGACY 0 -+#define EXT2_HASH_HALF_MD4 1 -+#define EXT2_HASH_TEA 2 -+ -+#define EXT2_HASH_FLAG_INCOMPAT 0x1 -+ -+struct ext2_dx_entry { -+ uint32_t hash; -+ uint32_t block; -+}; -+ -+struct ext2_dx_countlimit { -+ uint16_t limit; -+ uint16_t count; -+}; -+ -+ -+/* -+ * Macro-instructions used to manage group descriptors -+ */ -+#define EXT2_BLOCKS_PER_GROUP(s) (EXT2_SB(s)->s_blocks_per_group) -+#define EXT2_INODES_PER_GROUP(s) (EXT2_SB(s)->s_inodes_per_group) -+#define EXT2_INODES_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s)/EXT2_INODE_SIZE(s)) -+/* limits imposed by 16-bit value gd_free_{blocks,inode}_count */ -+#define EXT2_MAX_BLOCKS_PER_GROUP(s) ((1 << 16) - 8) -+#define EXT2_MAX_INODES_PER_GROUP(s) ((1 << 16) - EXT2_INODES_PER_BLOCK(s)) -+#define EXT2_DESC_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (struct ext2_group_desc)) -+ -+/* -+ * Constants relative to the data blocks -+ */ -+#define EXT2_NDIR_BLOCKS 12 -+#define EXT2_IND_BLOCK EXT2_NDIR_BLOCKS -+#define EXT2_DIND_BLOCK (EXT2_IND_BLOCK + 1) -+#define EXT2_TIND_BLOCK (EXT2_DIND_BLOCK + 1) -+#define EXT2_N_BLOCKS (EXT2_TIND_BLOCK + 1) -+ -+/* -+ * Inode flags -+ */ -+#define EXT2_SECRM_FL 0x00000001 /* Secure deletion */ -+#define EXT2_UNRM_FL 0x00000002 /* Undelete */ -+#define EXT2_COMPR_FL 0x00000004 /* Compress file */ -+#define EXT2_SYNC_FL 0x00000008 /* Synchronous updates */ -+#define EXT2_IMMUTABLE_FL 0x00000010 /* Immutable file */ -+#define EXT2_APPEND_FL 0x00000020 /* writes to file may only append */ -+#define EXT2_NODUMP_FL 0x00000040 /* do not dump file */ -+#define EXT2_NOATIME_FL 0x00000080 /* do not update atime */ -+/* Reserved for compression usage... */ -+#define EXT2_DIRTY_FL 0x00000100 -+#define EXT2_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */ -+#define EXT2_NOCOMPR_FL 0x00000400 /* Access raw compressed data */ -+#define EXT2_ECOMPR_FL 0x00000800 /* Compression error */ -+/* End compression flags --- maybe not all used */ -+#define EXT2_BTREE_FL 0x00001000 /* btree format dir */ -+#define EXT2_INDEX_FL 0x00001000 /* hash-indexed directory */ -+#define EXT2_IMAGIC_FL 0x00002000 -+#define EXT3_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */ -+#define EXT2_NOTAIL_FL 0x00008000 /* file tail should not be merged */ -+#define EXT2_DIRSYNC_FL 0x00010000 /* Synchronous directory modifications */ -+#define EXT2_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ -+#define EXT3_EXTENTS_FL 0x00080000 /* Inode uses extents */ -+#define EXT2_RESERVED_FL 0x80000000 /* reserved for ext2 lib */ -+ -+#define EXT2_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ -+#define EXT2_FL_USER_MODIFIABLE 0x000080FF /* User modifiable flags */ -+ -+/* -+ * ioctl commands -+ */ -+#define EXT2_IOC_GETFLAGS _IOR('f', 1, long) -+#define EXT2_IOC_SETFLAGS _IOW('f', 2, long) -+#define EXT2_IOC_GETVERSION _IOR('v', 1, long) -+#define EXT2_IOC_SETVERSION _IOW('v', 2, long) -+ -+/* -+ * Structure of an inode on the disk -+ */ -+struct ext2_inode { -+ uint16_t i_mode; /* File mode */ -+ uint16_t i_uid; /* Low 16 bits of Owner Uid */ -+ uint32_t i_size; /* Size in bytes */ -+ uint32_t i_atime; /* Access time */ -+ uint32_t i_ctime; /* Creation time */ -+ uint32_t i_mtime; /* Modification time */ -+ uint32_t i_dtime; /* Deletion Time */ -+ uint16_t i_gid; /* Low 16 bits of Group Id */ -+ uint16_t i_links_count; /* Links count */ -+ uint32_t i_blocks; /* Blocks count */ -+ uint32_t i_flags; /* File flags */ -+ union { -+ struct { -+ uint32_t l_i_reserved1; -+ } linux1; -+ struct { -+ uint32_t h_i_translator; -+ } hurd1; -+ struct { -+ uint32_t m_i_reserved1; -+ } masix1; -+ } osd1; /* OS dependent 1 */ -+ uint32_t i_block[EXT2_N_BLOCKS];/* Pointers to blocks */ -+ uint32_t i_generation; /* File version (for NFS) */ -+ uint32_t i_file_acl; /* File ACL */ -+ uint32_t i_dir_acl; /* Directory ACL */ -+ uint32_t i_faddr; /* Fragment address */ -+ union { -+ struct { -+ uint8_t l_i_frag; /* Fragment number */ -+ uint8_t l_i_fsize; /* Fragment size */ -+ uint16_t i_pad1; -+ uint16_t l_i_uid_high; /* these 2 fields */ -+ uint16_t l_i_gid_high; /* were reserved2[0] */ -+ uint32_t l_i_reserved2; -+ } linux2; -+ struct { -+ uint8_t h_i_frag; /* Fragment number */ -+ uint8_t h_i_fsize; /* Fragment size */ -+ uint16_t h_i_mode_high; -+ uint16_t h_i_uid_high; -+ uint16_t h_i_gid_high; -+ uint32_t h_i_author; -+ } hurd2; -+ struct { -+ uint8_t m_i_frag; /* Fragment number */ -+ uint8_t m_i_fsize; /* Fragment size */ -+ uint16_t m_pad1; -+ uint32_t m_i_reserved2[2]; -+ } masix2; -+ } osd2; /* OS dependent 2 */ -+}; -+ -+/* -+ * Permanent part of an large inode on the disk -+ */ -+struct ext2_inode_large { -+ uint16_t i_mode; /* File mode */ -+ uint16_t i_uid; /* Low 16 bits of Owner Uid */ -+ uint32_t i_size; /* Size in bytes */ -+ uint32_t i_atime; /* Access time */ -+ uint32_t i_ctime; /* Creation time */ -+ uint32_t i_mtime; /* Modification time */ -+ uint32_t i_dtime; /* Deletion Time */ -+ uint16_t i_gid; /* Low 16 bits of Group Id */ -+ uint16_t i_links_count; /* Links count */ -+ uint32_t i_blocks; /* Blocks count */ -+ uint32_t i_flags; /* File flags */ -+ union { -+ struct { -+ uint32_t l_i_reserved1; -+ } linux1; -+ struct { -+ uint32_t h_i_translator; -+ } hurd1; -+ struct { -+ uint32_t m_i_reserved1; -+ } masix1; -+ } osd1; /* OS dependent 1 */ -+ uint32_t i_block[EXT2_N_BLOCKS];/* Pointers to blocks */ -+ uint32_t i_generation; /* File version (for NFS) */ -+ uint32_t i_file_acl; /* File ACL */ -+ uint32_t i_dir_acl; /* Directory ACL */ -+ uint32_t i_faddr; /* Fragment address */ -+ union { -+ struct { -+ uint8_t l_i_frag; /* Fragment number */ -+ uint8_t l_i_fsize; /* Fragment size */ -+ uint16_t i_pad1; -+ uint16_t l_i_uid_high; /* these 2 fields */ -+ uint16_t l_i_gid_high; /* were reserved2[0] */ -+ uint32_t l_i_reserved2; -+ } linux2; -+ struct { -+ uint8_t h_i_frag; /* Fragment number */ -+ uint8_t h_i_fsize; /* Fragment size */ -+ uint16_t h_i_mode_high; -+ uint16_t h_i_uid_high; -+ uint16_t h_i_gid_high; -+ uint32_t h_i_author; -+ } hurd2; -+ struct { -+ uint8_t m_i_frag; /* Fragment number */ -+ uint8_t m_i_fsize; /* Fragment size */ -+ uint16_t m_pad1; -+ uint32_t m_i_reserved2[2]; -+ } masix2; -+ } osd2; /* OS dependent 2 */ -+ uint16_t i_extra_isize; -+ uint16_t i_pad1; -+}; -+ -+#define i_size_high i_dir_acl -+ -+/* -+ * File system states -+ */ -+#define EXT2_VALID_FS 0x0001 /* Unmounted cleanly */ -+#define EXT2_ERROR_FS 0x0002 /* Errors detected */ -+ -+/* -+ * Mount flags -+ */ -+#define EXT2_MOUNT_CHECK 0x0001 /* Do mount-time checks */ -+#define EXT2_MOUNT_GRPID 0x0004 /* Create files with directory's group */ -+#define EXT2_MOUNT_DEBUG 0x0008 /* Some debugging messages */ -+#define EXT2_MOUNT_ERRORS_CONT 0x0010 /* Continue on errors */ -+#define EXT2_MOUNT_ERRORS_RO 0x0020 /* Remount fs ro on errors */ -+#define EXT2_MOUNT_ERRORS_PANIC 0x0040 /* Panic on errors */ -+#define EXT2_MOUNT_MINIX_DF 0x0080 /* Mimics the Minix statfs */ -+#define EXT2_MOUNT_NO_UID32 0x0200 /* Disable 32-bit UIDs */ -+ -+#define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt -+#define set_opt(o, opt) o |= EXT2_MOUNT_##opt -+#define test_opt(sb, opt) (EXT2_SB(sb)->s_mount_opt & \ -+ EXT2_MOUNT_##opt) -+/* -+ * Maximal mount counts between two filesystem checks -+ */ -+#define EXT2_DFL_MAX_MNT_COUNT 20 /* Allow 20 mounts */ -+#define EXT2_DFL_CHECKINTERVAL 0 /* Don't use interval check */ -+ -+/* -+ * Behaviour when detecting errors -+ */ -+#define EXT2_ERRORS_CONTINUE 1 /* Continue execution */ -+#define EXT2_ERRORS_RO 2 /* Remount fs read-only */ -+#define EXT2_ERRORS_PANIC 3 /* Panic */ -+#define EXT2_ERRORS_DEFAULT EXT2_ERRORS_CONTINUE -+ -+/* -+ * Structure of the super block -+ */ -+struct ext2_super_block { -+ uint32_t s_inodes_count; /* Inodes count */ -+ uint32_t s_blocks_count; /* Blocks count */ -+ uint32_t s_r_blocks_count; /* Reserved blocks count */ -+ uint32_t s_free_blocks_count; /* Free blocks count */ -+ uint32_t s_free_inodes_count; /* Free inodes count */ -+ uint32_t s_first_data_block; /* First Data Block */ -+ uint32_t s_log_block_size; /* Block size */ -+ int32_t s_log_frag_size; /* Fragment size */ -+ uint32_t s_blocks_per_group; /* # Blocks per group */ -+ uint32_t s_frags_per_group; /* # Fragments per group */ -+ uint32_t s_inodes_per_group; /* # Inodes per group */ -+ uint32_t s_mtime; /* Mount time */ -+ uint32_t s_wtime; /* Write time */ -+ uint16_t s_mnt_count; /* Mount count */ -+ int16_t s_max_mnt_count; /* Maximal mount count */ -+ uint16_t s_magic; /* Magic signature */ -+ uint16_t s_state; /* File system state */ -+ uint16_t s_errors; /* Behaviour when detecting errors */ -+ uint16_t s_minor_rev_level; /* minor revision level */ -+ uint32_t s_lastcheck; /* time of last check */ -+ uint32_t s_checkinterval; /* max. time between checks */ -+ uint32_t s_creator_os; /* OS */ -+ uint32_t s_rev_level; /* Revision level */ -+ uint16_t s_def_resuid; /* Default uid for reserved blocks */ -+ uint16_t s_def_resgid; /* Default gid for reserved blocks */ -+ /* -+ * These fields are for EXT2_DYNAMIC_REV superblocks only. -+ * -+ * Note: the difference between the compatible feature set and -+ * the incompatible feature set is that if there is a bit set -+ * in the incompatible feature set that the kernel doesn't -+ * know about, it should refuse to mount the filesystem. -+ * -+ * e2fsck's requirements are more strict; if it doesn't know -+ * about a feature in either the compatible or incompatible -+ * feature set, it must abort and not try to meddle with -+ * things it doesn't understand... -+ */ -+ uint32_t s_first_ino; /* First non-reserved inode */ -+ uint16_t s_inode_size; /* size of inode structure */ -+ uint16_t s_block_group_nr; /* block group # of this superblock */ -+ uint32_t s_feature_compat; /* compatible feature set */ -+ uint32_t s_feature_incompat; /* incompatible feature set */ -+ uint32_t s_feature_ro_compat; /* readonly-compatible feature set */ -+ uint8_t s_uuid[16]; /* 128-bit uuid for volume */ -+ char s_volume_name[16]; /* volume name */ -+ char s_last_mounted[64]; /* directory where last mounted */ -+ uint32_t s_algorithm_usage_bitmap; /* For compression */ -+ /* -+ * Performance hints. Directory preallocation should only -+ * happen if the EXT2_FEATURE_COMPAT_DIR_PREALLOC flag is on. -+ */ -+ uint8_t s_prealloc_blocks; /* Nr of blocks to try to preallocate*/ -+ uint8_t s_prealloc_dir_blocks; /* Nr to preallocate for dirs */ -+ uint16_t s_reserved_gdt_blocks; /* Per group table for online growth */ -+ /* -+ * Journaling support valid if EXT2_FEATURE_COMPAT_HAS_JOURNAL set. -+ */ -+/*D0*/ uint8_t s_journal_uuid[16]; /* uuid of journal superblock */ -+/*E0*/ uint32_t s_journal_inum; /* inode number of journal file */ -+ uint32_t s_journal_dev; /* device number of journal file */ -+ uint32_t s_last_orphan; /* start of list of inodes to delete */ -+ uint32_t s_hash_seed[4]; /* HTREE hash seed */ -+ uint8_t s_def_hash_version; /* Default hash version to use */ -+ uint8_t s_jnl_backup_type; /* Default type of journal backup */ -+ uint16_t s_reserved_word_pad; -+/*100*/ uint32_t s_default_mount_opts; -+ uint32_t s_first_meta_bg; /* First metablock group */ -+ /* ext3 additions */ -+ uint32_t s_mkfs_time; /* When the filesystem was created */ -+ uint32_t s_jnl_blocks[17]; /* Backup of the journal inode */ -+ /* 64bit support valid if EXT4_FEATURE_COMPAT_64BIT */ -+/*150*/ uint32_t s_blocks_count_hi; /* Blocks count */ -+ uint32_t s_r_blocks_count_hi; /* Reserved blocks count */ -+ uint32_t s_free_blocks_count_hi; /* Free blocks count */ -+ uint16_t s_min_extra_isize; /* All inodes have at least # bytes */ -+ uint16_t s_want_extra_isize; /* New inodes should reserve # bytes */ -+ uint32_t s_flags; /* Miscellaneous flags */ -+ uint16_t s_raid_stride; /* RAID stride */ -+ uint16_t s_mmp_interval; /* # seconds to wait in MMP checking */ -+ uint64_t s_mmp_block; /* Block for multi-mount protection */ -+ uint32_t s_raid_stripe_width; /* blocks on all data disks (N*stride)*/ -+ uint8_t s_log_groups_per_flex; /* FLEX_BG group size */ -+ uint8_t s_reserved_char_pad2; -+ uint16_t s_reserved_pad; -+ uint32_t s_reserved[162]; /* Padding to the end of the block */ -+}; -+struct BUG_ext2_super_block { -+ char bug[sizeof(struct ext2_super_block) == 1024 ? 1 : -1]; -+}; -+ -+/* -+ * Codes for operating systems -+ */ -+#define EXT2_OS_LINUX 0 -+#define EXT2_OS_HURD 1 -+#define EXT2_OS_MASIX 2 -+#define EXT2_OS_FREEBSD 3 -+#define EXT2_OS_LITES 4 -+ -+/* -+ * Revision levels -+ */ -+#define EXT2_GOOD_OLD_REV 0 /* The good old (original) format */ -+#define EXT2_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */ -+ -+#define EXT2_CURRENT_REV EXT2_GOOD_OLD_REV -+#define EXT2_MAX_SUPP_REV EXT2_DYNAMIC_REV -+ -+#define EXT2_GOOD_OLD_INODE_SIZE 128 -+ -+/* -+ * Journal inode backup types -+ */ -+#define EXT3_JNL_BACKUP_BLOCKS 1 -+ -+/* -+ * Feature set definitions -+ */ -+ -+#define EXT2_HAS_COMPAT_FEATURE(sb,mask) \ -+ ( EXT2_SB(sb)->s_feature_compat & (mask) ) -+#define EXT2_HAS_RO_COMPAT_FEATURE(sb,mask) \ -+ ( EXT2_SB(sb)->s_feature_ro_compat & (mask) ) -+#define EXT2_HAS_INCOMPAT_FEATURE(sb,mask) \ -+ ( EXT2_SB(sb)->s_feature_incompat & (mask) ) -+ -+/* for s_feature_compat */ -+#define EXT2_FEATURE_COMPAT_DIR_PREALLOC 0x0001 -+#define EXT2_FEATURE_COMPAT_IMAGIC_INODES 0x0002 -+#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004 -+#define EXT2_FEATURE_COMPAT_EXT_ATTR 0x0008 -+#define EXT2_FEATURE_COMPAT_RESIZE_INO 0x0010 -+#define EXT2_FEATURE_COMPAT_DIR_INDEX 0x0020 -+ -+/* 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 /* not used */ -+#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_COMPRESSION 0x0001 -+#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 -+#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080 -+#define EXT4_FEATURE_INCOMPAT_MMP 0x0100 -+#define EXT4_FEATURE_INCOMPAT_FLEX_BG 0x0200 -+ -+ -+#define EXT2_FEATURE_COMPAT_SUPP 0 -+#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) -+ -+ -+/* -+ * Default values for user and/or group using reserved blocks -+ */ -+#define EXT2_DEF_RESUID 0 -+#define EXT2_DEF_RESGID 0 -+ -+/* -+ * Default mount options -+ */ -+#define EXT2_DEFM_DEBUG 0x0001 -+#define EXT2_DEFM_BSDGROUPS 0x0002 -+#define EXT2_DEFM_XATTR_USER 0x0004 -+#define EXT2_DEFM_ACL 0x0008 -+#define EXT2_DEFM_UID16 0x0010 -+#define EXT3_DEFM_JMODE 0x0060 -+#define EXT3_DEFM_JMODE_DATA 0x0020 -+#define EXT3_DEFM_JMODE_ORDERED 0x0040 -+#define EXT3_DEFM_JMODE_WBACK 0x0060 -+ -+/* -+ * Structure of a directory entry -+ */ -+#define EXT2_NAME_LEN 255 -+ -+struct ext2_dir_entry { -+ uint32_t inode; /* Inode number */ -+ uint16_t rec_len; /* Directory entry length */ -+ uint16_t name_len; /* Name length */ -+ char name[EXT2_NAME_LEN]; /* File name */ -+}; -+ -+/* -+ * The new version of the directory entry. Since EXT2 structures are -+ * stored in intel byte order, and the name_len field could never be -+ * bigger than 255 chars, it's safe to reclaim the extra byte for the -+ * file_type field. -+ */ -+struct ext2_dir_entry_2 { -+ uint32_t inode; /* Inode number */ -+ uint16_t rec_len; /* Directory entry length */ -+ uint8_t name_len; /* Name length */ -+ uint8_t file_type; -+ char name[EXT2_NAME_LEN]; /* File name */ -+}; -+ -+/* -+ * Ext2 directory file types. Only the low 3 bits are used. The -+ * other bits are reserved for now. -+ */ -+#define EXT2_FT_UNKNOWN 0 -+#define EXT2_FT_REG_FILE 1 -+#define EXT2_FT_DIR 2 -+#define EXT2_FT_CHRDEV 3 -+#define EXT2_FT_BLKDEV 4 -+#define EXT2_FT_FIFO 5 -+#define EXT2_FT_SOCK 6 -+#define EXT2_FT_SYMLINK 7 -+ -+#define EXT2_FT_MAX 8 -+ -+/* -+ * EXT2_DIR_PAD defines the directory entries boundaries -+ * -+ * NOTE: It must be a multiple of 4 -+ */ -+#define EXT2_DIR_PAD 4 -+#define EXT2_DIR_ROUND (EXT2_DIR_PAD - 1) -+#define EXT2_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT2_DIR_ROUND) & \ -+ ~EXT2_DIR_ROUND) -+ -+#endif ---- a/testsuite/mount.tests -+++ b/testsuite/mount.tests -@@ -36,7 +36,8 @@ testing "mount -o remount,mand" \ - "mount -o loop mount.image1m $testdir "\ - "&& grep -Fc $testdir </proc/mounts "\ - "&& mount -o remount,mand $testdir "\ --"&& grep -F $testdir </proc/mounts | grep -c '[, ]mand[, ]'" \ -+"&& grep -F $testdir </proc/mounts | grep -c '[, ]mand[, ]'"\ -+"|| grep -F $testdir </proc/mounts" \ - "1\n""1\n" \ - "" "" - -@@ -83,4 +84,28 @@ b - "" "" - SKIP= - -+ -+testing "mount RO loop" "\ -+exec 2>&1 -+umount -d mount.dir 2>/dev/null -+rmdir mount.dir 2>/dev/null -+mkdir -p mount.dir -+( -+cd mount.dir || { echo 'cd error'; exit 1; } -+mkdir z1 z2 || { echo 'mkdir error'; exit 1; } -+mount -t tmpfs tmpfs z1 || { echo 'mount tmpfs error'; exit 1; } -+dd if=/dev/zero of=z1/e2img count=10 bs=1M 2>/dev/null || { echo 'dd error'; exit 1; } -+mke2fs -F z1/e2img 2>/dev/null >&2 || { echo 'mke2fs error'; exit 1; } -+mount -r -o loop -t ext2 z1/e2img z2 || { echo 'mount -r -o loop error'; exit 1; } -+mount -o remount,ro z1 || { echo 'mount -o remount,ro error'; exit 1; } -+) -+umount -d mount.dir/z2 -+##losetup -d /dev/loop* -+umount -d mount.dir/z1 -+rm -rf mount.dir -+echo DONE -+" \ -+"DONE\n" "" "" -+ -+ - exit $FAILCOUNT ---- a/util-linux/mkfs_ext2.c -+++ b/util-linux/mkfs_ext2.c -@@ -48,16 +48,11 @@ - - #include "libbb.h" - #include <linux/fs.h> --#include <linux/ext2_fs.h> -+#include "bb_e2fs_defs.h" - - #define ENABLE_FEATURE_MKFS_EXT2_RESERVED_GDT 0 - #define ENABLE_FEATURE_MKFS_EXT2_DIR_INDEX 1 - --// from e2fsprogs --#define s_reserved_gdt_blocks s_padding1 --#define s_mkfs_time s_reserved[0] --#define s_flags s_reserved[22] -- - #define EXT2_HASH_HALF_MD4 1 - #define EXT2_FLAGS_SIGNED_HASH 0x0001 - #define EXT2_FLAGS_UNSIGNED_HASH 0x0002 -@@ -482,8 +477,10 @@ int mkfs_ext2_main(int argc UNUSED_PARAM - STORE_LE(sb->s_magic, EXT2_SUPER_MAGIC); - STORE_LE(sb->s_inode_size, inodesize); - // set "Required extra isize" and "Desired extra isize" fields to 28 -- if (inodesize != sizeof(*inode)) -- STORE_LE(sb->s_reserved[21], 0x001C001C); -+ if (inodesize != sizeof(*inode)) { -+ STORE_LE(sb->s_min_extra_isize, 0x001c); -+ STORE_LE(sb->s_want_extra_isize, 0x001c); -+ } - STORE_LE(sb->s_first_ino, EXT2_GOOD_OLD_FIRST_INO); - STORE_LE(sb->s_log_block_size, blocksize_log2 - EXT2_MIN_BLOCK_LOG_SIZE); - STORE_LE(sb->s_log_frag_size, blocksize_log2 - EXT2_MIN_BLOCK_LOG_SIZE); ---- a/util-linux/volume_id/ext.c -+++ b/util-linux/volume_id/ext.c -@@ -19,28 +19,8 @@ - */ - - #include "volume_id_internal.h" -+#include "bb_e2fs_defs.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; -- --#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x00000004 --#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x00000008 - #define EXT_SUPERBLOCK_OFFSET 0x400 - - int FAST_FUNC volume_id_probe_ext(struct volume_id *id /*,uint64_t off*/) -@@ -54,23 +34,27 @@ int FAST_FUNC volume_id_probe_ext(struct - 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 ((le32_to_cpu(es->feature_compat) & EXT3_FEATURE_COMPAT_HAS_JOURNAL) != 0) -+ 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->s_feature_compat & cpu_to_le32(EXT3_FEATURE_COMPAT_HAS_JOURNAL)) - id->type = "ext3"; - else - id->type = "ext2"; - #endif -- - return 0; - } |