Blame view
include/ext4fs.h
5.04 KB
a1596438a ext4fs ls load su... |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 |
/* * (C) Copyright 2011 - 2012 Samsung Electronics * EXT4 filesystem implementation in Uboot by * Uma Shankar <uma.shankar@samsung.com> * Manjunatha C Achar <a.manjunatha@samsung.com> * * Ext4 Extent data structures are taken from original ext4 fs code * as found in the linux kernel. * * Copyright (c) 2003-2006, Cluster File Systems, Inc, info@clusterfs.com * Written by Alex Tomas <alex@clusterfs.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef __EXT4__ #define __EXT4__ #include <ext_common.h> |
10a7a1b8b ext4: Avoid corru... |
30 |
#define EXT4_INDEX_FL 0x00001000 /* Inode uses hash tree index */ |
a1596438a ext4fs ls load su... |
31 32 33 |
#define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */ #define EXT4_EXT_MAGIC 0xf30a #define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010 |
2e7365518 fs: ext4: do not ... |
34 |
#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM 0x0400 |
a1596438a ext4fs ls load su... |
35 |
#define EXT4_FEATURE_INCOMPAT_EXTENTS 0x0040 |
6f94ab665 ext4: Refuse to m... |
36 |
#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080 |
a1596438a ext4fs ls load su... |
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 |
#define EXT4_INDIRECT_BLOCKS 12 #define EXT4_BG_INODE_UNINIT 0x0001 #define EXT4_BG_BLOCK_UNINIT 0x0002 #define EXT4_BG_INODE_ZEROED 0x0004 /* * ext4_inode has i_block array (60 bytes total). * The first 12 bytes store ext4_extent_header; * the remainder stores an array of ext4_extent. */ /* * This is the extent on-disk structure. * It's used at the bottom of the tree. */ struct ext4_extent { __le32 ee_block; /* first logical block extent covers */ __le16 ee_len; /* number of blocks covered by extent */ __le16 ee_start_hi; /* high 16 bits of physical block */ __le32 ee_start_lo; /* low 32 bits of physical block */ }; /* * This is index on-disk structure. * It's used at all the levels except the bottom. */ struct ext4_extent_idx { __le32 ei_block; /* index covers logical blocks from 'block' */ __le32 ei_leaf_lo; /* pointer to the physical block of the next * * level. leaf or next index could be there */ __le16 ei_leaf_hi; /* high 16 bits of physical block */ __u16 ei_unused; }; /* Each block (leaves and indexes), even inode-stored has header. */ struct ext4_extent_header { __le16 eh_magic; /* probably will support different formats */ __le16 eh_entries; /* number of valid entries */ __le16 eh_max; /* capacity of store in entries */ __le16 eh_depth; /* has tree real underlying blocks? */ __le32 eh_generation; /* generation of the tree */ }; struct ext_filesystem { /* Total Sector of partition */ uint64_t total_sect; /* Block size of partition */ uint32_t blksz; /* Inode size of partition */ uint32_t inodesz; /* Sectors per Block */ uint32_t sect_perblk; |
fc214ef90 ext4: determine g... |
90 91 |
/* Group Descriptor size */ uint16_t gdsize; |
a1596438a ext4fs ls load su... |
92 93 94 95 96 97 98 99 100 |
/* Group Descriptor Block Number */ uint32_t gdtable_blkno; /* Total block groups of partition */ uint32_t no_blkgrp; /* No of blocks required for bgdtable */ uint32_t no_blk_pergdt; /* Superblock */ struct ext2_sblock *sb; /* Block group descritpor table */ |
a1596438a ext4fs ls load su... |
101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 |
char *gdtable; /* Block Bitmap Related */ unsigned char **blk_bmaps; long int curr_blkno; uint16_t first_pass_bbmap; /* Inode Bitmap Related */ unsigned char **inode_bmaps; int curr_inode_no; uint16_t first_pass_ibmap; /* Journal Related */ /* Block Device Descriptor */ |
4101f6879 dm: Drop the bloc... |
116 |
struct blk_desc *dev_desc; |
a1596438a ext4fs ls load su... |
117 |
}; |
a1596438a ext4fs ls load su... |
118 119 |
extern struct ext2_data *ext4fs_root; extern struct ext2fs_node *ext4fs_file; |
03e2ecf6b fs: separate CONF... |
120 |
#if defined(CONFIG_EXT4_WRITE) |
ed34f34db ext4fs write support |
121 122 123 124 125 126 |
extern struct ext2_inode *g_parent_inode; extern int gd_index; extern int gindex; int ext4fs_init(void); void ext4fs_deinit(void); |
76a29519f ext4: fix possibl... |
127 |
int ext4fs_filename_unlink(char *filename); |
ed34f34db ext4fs write support |
128 |
int ext4fs_write(const char *fname, unsigned char *buffer, |
9f12cd0e0 ext4: Prepare API... |
129 130 131 |
unsigned long sizebytes); int ext4_write_file(const char *filename, void *buf, loff_t offset, loff_t len, loff_t *actwrite); |
ed34f34db ext4fs write support |
132 |
#endif |
a1596438a ext4fs ls load su... |
133 |
struct ext_filesystem *get_fs(void); |
9f12cd0e0 ext4: Prepare API... |
134 |
int ext4fs_open(const char *filename, loff_t *len); |
66a47ff2d ext4: Allow readi... |
135 |
int ext4fs_read(char *buf, loff_t offset, loff_t len, loff_t *actread); |
a1596438a ext4fs ls load su... |
136 137 |
int ext4fs_mount(unsigned part_length); void ext4fs_close(void); |
8b454eeee fs:ext4:write:fix... |
138 |
void ext4fs_reinit_global(void); |
a1596438a ext4fs ls load su... |
139 |
int ext4fs_ls(const char *dirname); |
55af5c931 ext4: implement e... |
140 |
int ext4fs_exists(const char *filename); |
d455d8789 fs: API changes e... |
141 |
int ext4fs_size(const char *filename, loff_t *size); |
a1596438a ext4fs ls load su... |
142 |
void ext4fs_free_node(struct ext2fs_node *node, struct ext2fs_node *currroot); |
04735e9c5 Fix ext2/ext4 fil... |
143 |
int ext4fs_devread(lbaint_t sector, int byte_offset, int byte_len, char *buf); |
4101f6879 dm: Drop the bloc... |
144 |
void ext4fs_set_blk_dev(struct blk_desc *rbdd, disk_partition_t *info); |
a1596438a ext4fs ls load su... |
145 |
long int read_allocated_block(struct ext2_inode *inode, int fileblock); |
4101f6879 dm: Drop the bloc... |
146 |
int ext4fs_probe(struct blk_desc *fs_dev_desc, |
e6d524153 fs: Move ls and r... |
147 |
disk_partition_t *fs_partition); |
d455d8789 fs: API changes e... |
148 149 |
int ext4_read_file(const char *filename, void *buf, loff_t offset, loff_t len, loff_t *actread); |
50ce4c07d fs/ext4: Support ... |
150 |
int ext4_read_superblock(char *buffer); |
59e890ef7 fs: make it possi... |
151 |
int ext4fs_uuid(char *uuid_str); |
a1596438a ext4fs ls load su... |
152 |
#endif |