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Annotation of qemu/roms/openbios/fs/grubfs/iso9660.h, revision 1.1

1.1     ! root        1: /*
        !             2:  *  ISO 9660 filesystem backend for GRUB (GRand Unified Bootloader)
        !             3:  *  including Rock Ridge Extensions support
        !             4:  *
        !             5:  *  Copyright (C) 1998, 1999  Kousuke Takai  <[email protected]>
        !             6:  *
        !             7:  *  This program is free software; you can redistribute it and/or modify
        !             8:  *  it under the terms of the GNU General Public License as published by
        !             9:  *  the Free Software Foundation; either version 2 of the License, or
        !            10:  *  (at your option) any later version.
        !            11:  *
        !            12:  *  This program is distributed in the hope that it will be useful,
        !            13:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            15:  *  GNU General Public License for more details.
        !            16:  *
        !            17:  *  You should have received a copy of the GNU General Public License
        !            18:  *  along with this program; if not, write to the Free Software
        !            19:  *  Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
        !            20:  *  MA 02110-1301, USA.
        !            21:  */
        !            22: /*
        !            23:  *  References:
        !            24:  *     linux/fs/isofs/rock.[ch]
        !            25:  *     mkisofs-1.11.1/diag/isoinfo.c
        !            26:  *     mkisofs-1.11.1/iso9660.h
        !            27:  *             (all are written by Eric Youngdale)
        !            28:  */
        !            29: 
        !            30: /*
        !            31:  * Modified by SONE Takeshi to work with FILO
        !            32:  */
        !            33: 
        !            34: #ifndef _ISO9660_H_
        !            35: #define _ISO9660_H_
        !            36: 
        !            37: #define ISO_SECTOR_BITS              (11)
        !            38: #define ISO_SECTOR_SIZE              (1<<ISO_SECTOR_BITS)
        !            39: 
        !            40: #define        ISO_REGULAR     1       /* regular file */
        !            41: #define        ISO_DIRECTORY   2       /* directory    */
        !            42: #define        ISO_OTHER       0       /* other file (with Rock Ridge) */
        !            43: 
        !            44: #define        RR_FLAG_PX      0x01    /* have POSIX file attributes */
        !            45: #define        RR_FLAG_NM      0x08    /* have alternate file name   */
        !            46: 
        !            47: /* POSIX file attributes for Rock Ridge extensions */
        !            48: #define        POSIX_S_IFMT    0xF000
        !            49: #define        POSIX_S_IFREG   0x8000
        !            50: #define        POSIX_S_IFDIR   0x4000
        !            51: 
        !            52: /* volume descriptor types */
        !            53: #define ISO_VD_PRIMARY 1
        !            54: #define ISO_VD_END 255
        !            55: 
        !            56: #define ISO_STANDARD_ID "CD001"
        !            57: 
        !            58: #ifndef ASM_FILE
        !            59: 
        !            60: typedef        union {
        !            61:        uint8_t l,b;
        !            62: }      iso_8bit_t;
        !            63: 
        !            64: typedef        struct __iso_16bit {
        !            65:        uint16_t l, b;
        !            66: } iso_16bit_t;
        !            67: 
        !            68: typedef        struct __iso_32bit {
        !            69:        uint32_t l, b;
        !            70: } iso_32bit_t;
        !            71: 
        !            72: typedef uint8_t                iso_date_t[7];
        !            73: 
        !            74: struct iso_directory_record {
        !            75:        iso_8bit_t      length;
        !            76:        iso_8bit_t      ext_attr_length;
        !            77:        iso_32bit_t     extent;
        !            78:        iso_32bit_t     size;
        !            79:        iso_date_t      date;
        !            80:        iso_8bit_t      flags;
        !            81:        iso_8bit_t      file_unit_size;
        !            82:        iso_8bit_t      interleave;
        !            83:        iso_16bit_t     volume_seq_number;
        !            84:        iso_8bit_t      name_len;
        !            85:        uint8_t name[1];
        !            86: } __attribute__ ((packed));
        !            87: 
        !            88: struct iso_primary_descriptor {
        !            89:        iso_8bit_t      type;
        !            90:        uint8_t         id[5];
        !            91:        iso_8bit_t      version;
        !            92:        uint8_t         _unused1[1];
        !            93:        uint8_t         system_id[32];
        !            94:        uint8_t         volume_id[32];
        !            95:        uint8_t         _unused2[8];
        !            96:        iso_32bit_t     volume_space_size;
        !            97:        uint8_t         _unused3[32];
        !            98:        iso_16bit_t     volume_set_size;
        !            99:        iso_16bit_t     volume_seq_number;
        !           100:        iso_16bit_t     logical_block_size;
        !           101:        iso_32bit_t     path_table_size;
        !           102:        uint8_t         type_l_path_table[4];
        !           103:        uint8_t         opt_type_l_path_table[4];
        !           104:        uint8_t         type_m_path_table[4];
        !           105:        uint8_t         opt_type_m_path_table[4];
        !           106:        struct iso_directory_record root_directory_record;
        !           107:        uint8_t         volume_set_id[128];
        !           108:        uint8_t         publisher_id[128];
        !           109:        uint8_t         preparer_id[128];
        !           110:        uint8_t         application_id[128];
        !           111:        uint8_t         copyright_file_id[37];
        !           112:        uint8_t         abstract_file_id[37];
        !           113:        uint8_t         bibliographic_file_id[37];
        !           114:        uint8_t         creation_date[17];
        !           115:        uint8_t         modification_date[17];
        !           116:        uint8_t         expiration_date[17];
        !           117:        uint8_t         effective_date[17];
        !           118:        iso_8bit_t      file_structure_version;
        !           119:        uint8_t         _unused4[1];
        !           120:        uint8_t         application_data[512];
        !           121:        uint8_t         _unused5[653];
        !           122: } __attribute__ ((packed));
        !           123: 
        !           124: struct rock_ridge {
        !           125:        uint16_t        signature;
        !           126:        uint8_t         len;
        !           127:        uint8_t         version;
        !           128:        union {
        !           129:          struct CE {
        !           130:            iso_32bit_t extent;
        !           131:            iso_32bit_t offset;
        !           132:            iso_32bit_t size;
        !           133:          } ce;
        !           134:          struct NM {
        !           135:            iso_8bit_t  flags;
        !           136:            uint8_t     name[0];
        !           137:          } nm;
        !           138:          struct PX {
        !           139:            iso_32bit_t mode;
        !           140:            iso_32bit_t nlink;
        !           141:            iso_32bit_t uid;
        !           142:            iso_32bit_t gid;
        !           143:          } px;
        !           144:          struct RR {
        !           145:            iso_8bit_t  flags;
        !           146:          } rr;
        !           147:        } u;
        !           148: } __attribute__ ((packed));
        !           149: 
        !           150: typedef        union RR_ptr {
        !           151:        struct rock_ridge *rr;
        !           152:        char              *ptr;
        !           153:        int                i;
        !           154: } RR_ptr_t;
        !           155: 
        !           156: #define CHECK2(ptr, c1, c2)                                             \
        !           157:     (*(unsigned char *)(ptr) == (c1) &&                                 \
        !           158:      *((unsigned char *)(ptr) + 1) == (c2))
        !           159: #define        CHECK4(ptr, c1, c2, c3, c4)                                     \
        !           160:     (*(unsigned char *)(ptr) == (c1) &&                                 \
        !           161:      *((unsigned char *)(ptr) + 1) == (c2) &&                           \
        !           162:      *((unsigned char *)(ptr) + 2) == (c3) &&                           \
        !           163:      *((unsigned char *)(ptr) + 3) == (c4))
        !           164: 
        !           165: #endif /* !ASM_FILE */
        !           166: 
        !           167: #endif /* _ISO9660_H_ */

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