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Text File | 1995-08-23 | 13KB | 408 lines

Extended 2 filesystem structure definitions for ext2ed. Most of this file is just copied from the ext2 main include file. My parser is very primitive - It only searches for the struct keywords, and uses the variables in there. The rest of the file is just ignored. You will find at the end a few additional types which are not aviable in the original include file, such as the types "file" and "dir". They have no variables, but are necessary due to the way ext2ed binds C commands to specific types. Gadi Oxman, 7/95 Here is the original copyright: /* * linux/include/linux/ext2_fs.h * * Copyright (C) 1992, 1993, 1994 Remy Card (card@masi.ibp.fr) * Laboratoire MASI - Institut Blaise Pascal * Universite Pierre et Marie Curie (Paris VI) * * from * * linux/include/linux/minix_fs.h * * Copyright (C) 1991, 1992 Linus Torvalds */ /* * ACL structures */ struct ext2_acl_header /* Header of Access Control Lists */ { unsigned long aclh_size; unsigned long aclh_file_count; unsigned long aclh_acle_count; unsigned long aclh_first_acle; }; struct ext2_acl_entry /* Access Control List Entry */ { unsigned long acle_size; unsigned short acle_perms; /* Access permissions */ unsigned short acle_type; /* Type of entry */ unsigned short acle_tag; /* User or group identity */ unsigned short acle_pad1; unsigned long 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 { unsigned long bg_block_bitmap; /* Blocks bitmap block */ unsigned long bg_inode_bitmap; /* Inodes bitmap block */ unsigned long bg_inode_table; /* Inodes table block */ unsigned short bg_free_blocks_count; /* Free blocks count */ unsigned short bg_free_inodes_count; /* Free inodes count */ unsigned short bg_used_dirs_count; /* Directories count */ unsigned short bg_pad; unsigned long bg_reserved[0]; unsigned long bg_reserved[1]; unsigned long bg_reserved[2]; }; /* * Structure of an inode on the disk */ struct ext2_inode { unsigned short i_mode; /* File mode */ unsigned short i_uid; /* Owner Uid */ unsigned long i_size; /* Size in bytes */ unsigned long i_atime; /* Access time */ unsigned long i_ctime; /* Creation time */ unsigned long i_mtime; /* Modification time */ unsigned long i_dtime; /* Deletion Time */ unsigned short i_gid; /* Group Id */ unsigned short i_links_count; /* Links count */ unsigned long i_blocks; /* Blocks count */ unsigned long i_flags; /* File flags */ unsigned long l_i_reserved1; unsigned long i_block[0]; /* Pointers to blocks */ unsigned long i_block[1]; /* Pointers to blocks */ unsigned long i_block[2]; /* Pointers to blocks */ unsigned long i_block[3]; /* Pointers to blocks */ unsigned long i_block[4]; /* Pointers to blocks */ unsigned long i_block[5]; /* Pointers to blocks */ unsigned long i_block[6]; /* Pointers to blocks */ unsigned long i_block[7]; /* Pointers to blocks */ unsigned long i_block[8]; /* Pointers to blocks */ unsigned long i_block[9]; /* Pointers to blocks */ unsigned long i_block[10]; /* Pointers to blocks */ unsigned long i_block[11]; /* Pointers to blocks */ unsigned long i_block[12]; /* Pointers to blocks */ unsigned long i_block[13]; /* Pointers to blocks */ unsigned long i_block[14]; /* Pointers to blocks */ unsigned long i_version; /* File version (for NFS) */ unsigned long i_file_acl; /* File ACL */ unsigned long i_dir_acl; /* Directory ACL */ unsigned long i_faddr; /* Fragment address */ unsigned char l_i_frag; /* Fragment number */ unsigned char l_i_fsize; /* Fragment size */ unsigned short i_pad1; unsigned long l_i_reserved2[0]; unsigned long l_i_reserved2[1]; }; /* * Structure of the super block */ struct ext2_super_block { unsigned long s_inodes_count; /* Inodes count */ unsigned long s_blocks_count; /* Blocks count */ unsigned long s_r_blocks_count; /* Reserved blocks count */ unsigned long s_free_blocks_count; /* Free blocks count */ unsigned long s_free_inodes_count; /* Free inodes count */ unsigned long s_first_data_block; /* First Data Block */ unsigned long s_log_block_size; /* Block size */ long s_log_frag_size; /* Fragment size */ unsigned long s_blocks_per_group; /* # Blocks per group */ unsigned long s_frags_per_group; /* # Fragments per group */ unsigned long s_inodes_per_group; /* # Inodes per group */ unsigned long s_mtime; /* Mount time */ unsigned long s_wtime; /* Write time */ unsigned short s_mnt_count; /* Mount count */ short s_max_mnt_count; /* Maximal mount count */ unsigned short s_magic; /* Magic signature */ unsigned short s_state; /* File system state */ unsigned short s_errors; /* Behaviour when detecting errors */ unsigned short s_pad; unsigned long s_lastcheck; /* time of last check */ unsigned long s_checkinterval; /* max. time between checks */ unsigned long s_creator_os; /* OS */ unsigned long s_rev_level; /* Revision level */ unsigned short s_def_resuid; unsigned short s_deg_resgid; unsigned long s_reserved[0]; /* Padding to the end of the block */ unsigned long s_reserved[1]; unsigned long s_reserved[2]; unsigned long s_reserved[3]; unsigned long s_reserved[4]; unsigned long s_reserved[5]; unsigned long s_reserved[6]; unsigned long s_reserved[7]; unsigned long s_reserved[8]; unsigned long s_reserved[9]; unsigned long s_reserved[10]; unsigned long s_reserved[11]; unsigned long s_reserved[12]; unsigned long s_reserved[13]; unsigned long s_reserved[14]; unsigned long s_reserved[15]; unsigned long s_reserved[16]; unsigned long s_reserved[17]; unsigned long s_reserved[18]; unsigned long s_reserved[19]; unsigned long s_reserved[20]; unsigned long s_reserved[21]; unsigned long s_reserved[22]; unsigned long s_reserved[23]; unsigned long s_reserved[24]; unsigned long s_reserved[25]; unsigned long s_reserved[26]; unsigned long s_reserved[27]; unsigned long s_reserved[28]; unsigned long s_reserved[29]; unsigned long s_reserved[30]; unsigned long s_reserved[31]; unsigned long s_reserved[32]; unsigned long s_reserved[33]; unsigned long s_reserved[34]; unsigned long s_reserved[35]; unsigned long s_reserved[36]; unsigned long s_reserved[37]; unsigned long s_reserved[38]; unsigned long s_reserved[39]; unsigned long s_reserved[40]; unsigned long s_reserved[41]; unsigned long s_reserved[42]; unsigned long s_reserved[43]; unsigned long s_reserved[44]; unsigned long s_reserved[45]; unsigned long s_reserved[46]; unsigned long s_reserved[47]; unsigned long s_reserved[48]; unsigned long s_reserved[49]; unsigned long s_reserved[50]; unsigned long s_reserved[51]; unsigned long s_reserved[52]; unsigned long s_reserved[53]; unsigned long s_reserved[54]; unsigned long s_reserved[55]; unsigned long s_reserved[56]; unsigned long s_reserved[57]; unsigned long s_reserved[58]; unsigned long s_reserved[59]; unsigned long s_reserved[60]; unsigned long s_reserved[61]; unsigned long s_reserved[62]; unsigned long s_reserved[63]; unsigned long s_reserved[64]; unsigned long s_reserved[65]; unsigned long s_reserved[66]; unsigned long s_reserved[67]; unsigned long s_reserved[68]; unsigned long s_reserved[69]; unsigned long s_reserved[70]; unsigned long s_reserved[71]; unsigned long s_reserved[72]; unsigned long s_reserved[73]; unsigned long s_reserved[74]; unsigned long s_reserved[75]; unsigned long s_reserved[76]; unsigned long s_reserved[77]; unsigned long s_reserved[78]; unsigned long s_reserved[79]; unsigned long s_reserved[80]; unsigned long s_reserved[81]; unsigned long s_reserved[82]; unsigned long s_reserved[83]; unsigned long s_reserved[84]; unsigned long s_reserved[85]; unsigned long s_reserved[86]; unsigned long s_reserved[87]; unsigned long s_reserved[88]; unsigned long s_reserved[89]; unsigned long s_reserved[90]; unsigned long s_reserved[91]; unsigned long s_reserved[92]; unsigned long s_reserved[93]; unsigned long s_reserved[94]; unsigned long s_reserved[95]; unsigned long s_reserved[96]; unsigned long s_reserved[97]; unsigned long s_reserved[98]; unsigned long s_reserved[99]; unsigned long s_reserved[100]; unsigned long s_reserved[101]; unsigned long s_reserved[102]; unsigned long s_reserved[103]; unsigned long s_reserved[104]; unsigned long s_reserved[105]; unsigned long s_reserved[106]; unsigned long s_reserved[107]; unsigned long s_reserved[108]; unsigned long s_reserved[109]; unsigned long s_reserved[110]; unsigned long s_reserved[111]; unsigned long s_reserved[112]; unsigned long s_reserved[113]; unsigned long s_reserved[114]; unsigned long s_reserved[115]; unsigned long s_reserved[116]; unsigned long s_reserved[117]; unsigned long s_reserved[118]; unsigned long s_reserved[119]; unsigned long s_reserved[120]; unsigned long s_reserved[121]; unsigned long s_reserved[122]; unsigned long s_reserved[123]; unsigned long s_reserved[124]; unsigned long s_reserved[125]; unsigned long s_reserved[126]; unsigned long s_reserved[127]; unsigned long s_reserved[128]; unsigned long s_reserved[129]; unsigned long s_reserved[130]; unsigned long s_reserved[131]; unsigned long s_reserved[132]; unsigned long s_reserved[133]; unsigned long s_reserved[134]; unsigned long s_reserved[135]; unsigned long s_reserved[136]; unsigned long s_reserved[137]; unsigned long s_reserved[138]; unsigned long s_reserved[139]; unsigned long s_reserved[140]; unsigned long s_reserved[141]; unsigned long s_reserved[142]; unsigned long s_reserved[143]; unsigned long s_reserved[144]; unsigned long s_reserved[145]; unsigned long s_reserved[146]; unsigned long s_reserved[147]; unsigned long s_reserved[148]; unsigned long s_reserved[149]; unsigned long s_reserved[150]; unsigned long s_reserved[151]; unsigned long s_reserved[152]; unsigned long s_reserved[153]; unsigned long s_reserved[154]; unsigned long s_reserved[155]; unsigned long s_reserved[156]; unsigned long s_reserved[157]; unsigned long s_reserved[158]; unsigned long s_reserved[159]; unsigned long s_reserved[160]; unsigned long s_reserved[161]; unsigned long s_reserved[162]; unsigned long s_reserved[163]; unsigned long s_reserved[164]; unsigned long s_reserved[165]; unsigned long s_reserved[166]; unsigned long s_reserved[167]; unsigned long s_reserved[168]; unsigned long s_reserved[169]; unsigned long s_reserved[170]; unsigned long s_reserved[171]; unsigned long s_reserved[172]; unsigned long s_reserved[173]; unsigned long s_reserved[174]; unsigned long s_reserved[175]; unsigned long s_reserved[176]; unsigned long s_reserved[177]; unsigned long s_reserved[178]; unsigned long s_reserved[179]; unsigned long s_reserved[180]; unsigned long s_reserved[181]; unsigned long s_reserved[182]; unsigned long s_reserved[183]; unsigned long s_reserved[184]; unsigned long s_reserved[185]; unsigned long s_reserved[186]; unsigned long s_reserved[187]; unsigned long s_reserved[188]; unsigned long s_reserved[189]; unsigned long s_reserved[190]; unsigned long s_reserved[191]; unsigned long s_reserved[192]; unsigned long s_reserved[193]; unsigned long s_reserved[194]; unsigned long s_reserved[195]; unsigned long s_reserved[196]; unsigned long s_reserved[197]; unsigned long s_reserved[198]; unsigned long s_reserved[199]; unsigned long s_reserved[200]; unsigned long s_reserved[201]; unsigned long s_reserved[202]; unsigned long s_reserved[203]; unsigned long s_reserved[204]; unsigned long s_reserved[205]; unsigned long s_reserved[206]; unsigned long s_reserved[207]; unsigned long s_reserved[208]; unsigned long s_reserved[209]; unsigned long s_reserved[210]; unsigned long s_reserved[211]; unsigned long s_reserved[212]; unsigned long s_reserved[213]; unsigned long s_reserved[214]; unsigned long s_reserved[215]; unsigned long s_reserved[216]; unsigned long s_reserved[217]; unsigned long s_reserved[218]; unsigned long s_reserved[219]; unsigned long s_reserved[220]; unsigned long s_reserved[221]; unsigned long s_reserved[222]; unsigned long s_reserved[223]; unsigned long s_reserved[224]; unsigned long s_reserved[225]; unsigned long s_reserved[226]; unsigned long s_reserved[227]; unsigned long s_reserved[228]; unsigned long s_reserved[229]; unsigned long s_reserved[230]; unsigned long s_reserved[231]; unsigned long s_reserved[232]; unsigned long s_reserved[233]; unsigned long s_reserved[234]; }; The following is actually not used, due to the variable length of the name field. EXT2ED handles directories through the type "dir" below. /* * Structure of a directory entry */ /* struct ext2_dir_entry { */ /* unsigned long inode; /* Inode number */ unsigned short rec_len; /* Directory entry length */ unsigned short name_len; /* Name length */ char name[EXT2_NAME_LEN]; /* File name */ }; */ struct file { }; struct dir { }; struct block_bitmap { }; struct inode_bitmap { };