/* * Copyright (c) 2013, 2015 Jonas 'Sortie' Termansen. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * * ext-constants.h * Constants for the extended filesystem. */ #ifndef EXT_CONSTANTS_H #define EXT_CONSTANTS_H static const uint16_t EXT2_SUPER_MAGIC = 0xEF53; static const uint16_t EXT2_VALID_FS = 1; static const uint16_t EXT2_ERROR_FS = 2; static const uint16_t EXT2_ERRORS_CONTINUE = 1; static const uint16_t EXT2_ERRORS_RO = 2; static const uint16_t EXT2_ERRORS_PANIC = 3; static const uint32_t EXT2_OS_LINUX = 0; static const uint32_t EXT2_OS_HURD = 1; static const uint32_t EXT2_OS_MASIX = 2; static const uint32_t EXT2_OS_FREEBSD = 3; static const uint32_t EXT2_OS_LITES = 4; static const uint32_t EXT2_GOOD_OLD_REV = 0; static const uint32_t EXT2_DYNAMIC_REV = 1; static const uint16_t EXT2_DEF_RESUID = 0; static const uint16_t EXT2_DEF_RESGID = 0; static const uint16_t EXT2_GOOD_OLD_FIRST_INO = 11; static const uint16_t EXT2_GOOD_OLD_INODE_SIZE = 128; static const uint32_t EXT2_FEATURE_COMPAT_DIR_PREALLOC = 1U << 0U; static const uint32_t EXT2_FEATURE_COMPAT_IMAGIC_INODES = 1U << 1U; static const uint32_t EXT3_FEATURE_COMPAT_HAS_JOURNAL = 1U << 2U; static const uint32_t EXT2_FEATURE_COMPAT_EXT_ATTR = 1U << 3U; static const uint32_t EXT2_FEATURE_COMPAT_RESIZE_INO = 1U << 4U; static const uint32_t EXT2_FEATURE_COMPAT_DIR_INDEX = 1U << 5U; static const uint32_t EXT2_FEATURE_INCOMPAT_COMPRESSION = 1U << 0U; static const uint32_t EXT2_FEATURE_INCOMPAT_FILETYPE = 1U << 1U; static const uint32_t EXT2_FEATURE_INCOMPAT_RECOVER = 1U << 2U; static const uint32_t EXT2_FEATURE_INCOMPAT_JOURNAL_DEV = 1U << 3U; static const uint32_t EXT2_FEATURE_INCOMPAT_META_BG = 1U << 4U; static const uint32_t EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER = 1U << 0U; static const uint32_t EXT2_FEATURE_RO_COMPAT_LARGE_FILE = 1U << 1U; static const uint32_t EXT2_FEATURE_RO_COMPAT_BTREE_DIR = 1U << 2U; static const uint32_t EXT2_LZV1_ALG = 1U << 0U; static const uint32_t EXT2_LZRW3A_ALG = 1U << 1U; static const uint32_t EXT2_GZIP_ALG = 1U << 2U; static const uint32_t EXT2_BZIP2_ALG = 1U << 3U; static const uint32_t EXT2_LZO_ALG = 1U << 4U; static const uint16_t EXT2_S_IFMT = 0xF000; static const uint16_t EXT2_S_IFSOCK = 0xC000; static const uint16_t EXT2_S_IFLNK = 0xA000; static const uint16_t EXT2_S_IFREG = 0x8000; static const uint16_t EXT2_S_IFBLK = 0x6000; static const uint16_t EXT2_S_IFDIR = 0x4000; static const uint16_t EXT2_S_IFCHR = 0x2000; static const uint16_t EXT2_S_IFIFO = 0x1000; static const uint16_t EXT2_S_ISUID = 0x0800; static const uint16_t EXT2_S_ISGID = 0x0400; static const uint16_t EXT2_S_ISVTX = 0x0200; static const uint16_t EXT2_S_IRUSR = 0x0100; static const uint16_t EXT2_S_IWUSR = 0x0080; static const uint16_t EXT2_S_IXUSR = 0x0040; static const uint16_t EXT2_S_IRGRP = 0x0020; static const uint16_t EXT2_S_IWGRP = 0x0010; static const uint16_t EXT2_S_IXGRP = 0x0008; static const uint16_t EXT2_S_IROTH = 0x0004; static const uint16_t EXT2_S_IWOTH = 0x0002; static const uint16_t EXT2_S_IXOTH = 0x0001; #define EXT2_S_ISSOCK(mode) (((mode) & EXT2_S_IFMT) == EXT2_S_IFSOCK) #define EXT2_S_ISLNK(mode) (((mode) & EXT2_S_IFMT) == EXT2_S_IFLNK) #define EXT2_S_ISREG(mode) (((mode) & EXT2_S_IFMT) == EXT2_S_IFREG) #define EXT2_S_ISBLK(mode) (((mode) & EXT2_S_IFMT) == EXT2_S_IFBLK) #define EXT2_S_ISDIR(mode) (((mode) & EXT2_S_IFMT) == EXT2_S_IFDIR) #define EXT2_S_ISCHR(mode) (((mode) & EXT2_S_IFMT) == EXT2_S_IFCHR) #define EXT2_S_ISFIFO(mode) (((mode) & EXT2_S_IFMT) == EXT2_S_IFIFO) static const uint32_t EXT2_SECRM_FL = 0x00000001U; static const uint32_t EXT2_UNRM_FL = 0x00000002U; static const uint32_t EXT2_COMPR_FL = 0x00000004U; static const uint32_t EXT2_SYNC_FL = 0x00000008U; static const uint32_t EXT2_IMMUTABLE_FL = 0x00000010U; static const uint32_t EXT2_APPEND_FL = 0x00000020U; static const uint32_t EXT2_NODUMP_FL = 0x00000040U; static const uint32_t EXT2_NOATIME_FL = 0x00000080U; static const uint32_t EXT2_DIRTY_FL = 0x00000100U; static const uint32_t EXT2_COMPRBLK_FL = 0x00000200U; static const uint32_t EXT2_NOCOMPR_FL = 0x00000400U; static const uint32_t EXT2_ECOMPR_FL = 0x00000800U; static const uint32_t EXT2_BTREE_FL = 0x00001000U; static const uint32_t EXT2_INDEX_FL = 0x00001000U; static const uint32_t EXT2_IMAGIC_FL = 0x00002000U; static const uint32_t EXT3_JOURNAL_DATA_FL = 0x00004000U; static const uint32_t EXT2_RESERVED_FL = 0x80000000U; static const uint32_t EXT2_ROOT_INO = 2; static const uint8_t EXT2_FT_UNKNOWN = 0; static const uint8_t EXT2_FT_REG_FILE = 1; static const uint8_t EXT2_FT_DIR = 2; static const uint8_t EXT2_FT_CHRDEV = 3; static const uint8_t EXT2_FT_BLKDEV = 4; static const uint8_t EXT2_FT_FIFO = 5; static const uint8_t EXT2_FT_SOCK = 6; static const uint8_t EXT2_FT_SYMLINK = 7; static inline uint8_t EXT2_FT_OF_MODE(mode_t mode) { if ( EXT2_S_ISREG(mode) ) return EXT2_FT_REG_FILE; if ( EXT2_S_ISDIR(mode) ) return EXT2_FT_DIR; if ( EXT2_S_ISCHR(mode) ) return EXT2_FT_CHRDEV; if ( EXT2_S_ISBLK(mode) ) return EXT2_FT_BLKDEV; if ( EXT2_S_ISFIFO(mode) ) return EXT2_FT_FIFO; if ( EXT2_S_ISSOCK(mode) ) return EXT2_FT_SOCK; if ( EXT2_S_ISLNK(mode) ) return EXT2_FT_SYMLINK; return EXT2_FT_UNKNOWN; } #endif