Annotation of sys/isofs/udf/ecma167-udf.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: ecma167-udf.h,v 1.6 2006/07/04 01:11:29 pedro Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2001, 2002 Scott Long <scottl@freebsd.org>
! 5: * All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: *
! 16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 17: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 18: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 19: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 20: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 21: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 22: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 24: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 25: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 26: * SUCH DAMAGE.
! 27: *
! 28: * $FreeBSD: src/sys/fs/udf/ecma167-udf.h,v 1.4 2002/09/23 18:54:30 alfred Exp $
! 29: */
! 30:
! 31: /* ecma167-udf.h */
! 32: /* Structure/definitions/constants a la ECMA 167 rev. 3 */
! 33:
! 34: /* Tag identifiers */
! 35: enum {
! 36: TAGID_PRI_VOL = 1,
! 37: TAGID_ANCHOR = 2,
! 38: TAGID_VOL = 3,
! 39: TAGID_IMP_VOL = 4,
! 40: TAGID_PARTITION = 5,
! 41: TAGID_LOGVOL = 6,
! 42: TAGID_UNALLOC_SPACE = 7,
! 43: TAGID_TERM = 8,
! 44: TAGID_LOGVOL_INTEGRITY = 9,
! 45: TAGID_FSD = 256,
! 46: TAGID_FID = 257,
! 47: TAGID_FENTRY = 261
! 48: };
! 49:
! 50: /* Descriptor tag [3/7.2] */
! 51: struct desc_tag {
! 52: uint16_t id;
! 53: uint16_t descriptor_ver;
! 54: uint8_t cksum;
! 55: uint8_t reserved;
! 56: uint16_t serial_num;
! 57: uint16_t desc_crc;
! 58: uint16_t desc_crc_len;
! 59: uint32_t tag_loc;
! 60: } __packed;
! 61:
! 62: /* Recorded Address [4/7.1] */
! 63: struct lb_addr {
! 64: uint32_t lb_num;
! 65: uint16_t part_num;
! 66: } __packed;
! 67:
! 68: /* Extent Descriptor [3/7.1] */
! 69: struct extent_ad {
! 70: uint32_t len;
! 71: uint32_t loc;
! 72: } __packed;
! 73:
! 74: /* Short Allocation Descriptor [4/14.14.1] */
! 75: struct short_ad {
! 76: uint32_t len;
! 77: uint32_t pos;
! 78: } __packed;
! 79:
! 80: /* Long Allocation Descriptor [4/14.14.2] */
! 81: struct long_ad {
! 82: uint32_t len;
! 83: struct lb_addr loc;
! 84: uint16_t ad_flags;
! 85: uint32_t ad_id;
! 86: } __packed;
! 87:
! 88: /* Extended Allocation Descriptor [4/14.14.3] */
! 89: struct ext_ad {
! 90: uint32_t ex_len;
! 91: uint32_t rec_len;
! 92: uint32_t inf_len;
! 93: struct lb_addr ex_loc;
! 94: uint8_t reserved[2];
! 95: } __packed;
! 96:
! 97: union icb {
! 98: struct short_ad s_ad;
! 99: struct long_ad l_ad;
! 100: struct ext_ad e_ad;
! 101: };
! 102:
! 103: /* Character set spec [1/7.2.1] */
! 104: struct charspec {
! 105: uint8_t type;
! 106: uint8_t inf[63];
! 107: } __packed;
! 108:
! 109: /* Timestamp [1/7.3] */
! 110: struct timestamp {
! 111: uint16_t type_tz;
! 112: uint16_t year;
! 113: uint8_t month;
! 114: uint8_t day;
! 115: uint8_t hour;
! 116: uint8_t minute;
! 117: uint8_t second;
! 118: uint8_t centisec;
! 119: uint8_t hund_usec;
! 120: uint8_t usec;
! 121: } __packed;
! 122:
! 123: /* Entity Identifier [1/7.4] */
! 124: #define UDF_REGID_ID_SIZE 23
! 125: struct regid {
! 126: uint8_t flags;
! 127: uint8_t id[UDF_REGID_ID_SIZE];
! 128: uint8_t id_suffix[8];
! 129: } __packed;
! 130:
! 131: /* ICB Tag [4/14.6] */
! 132: struct icb_tag {
! 133: uint32_t prev_num_dirs;
! 134: uint16_t strat_type;
! 135: uint8_t strat_param[2];
! 136: uint16_t max_num_entries;
! 137: uint8_t reserved;
! 138: uint8_t file_type;
! 139: struct lb_addr parent_icb;
! 140: uint16_t flags;
! 141: } __packed;
! 142:
! 143: #define UDF_ICB_TYPE_VAT_150 0x00
! 144: #define UDF_ICB_TYPE_DIR 0x04
! 145: #define UDF_ICB_TYPE_FILE 0x05
! 146: #define UDF_ICB_TYPE_BLKDEV 0x06
! 147: #define UDF_ICB_TYPE_CHRDEV 0x07
! 148: #define UDF_ICB_TYPE_FIFO 0x09
! 149: #define UDF_ICB_TYPE_SOCKET 0x0a
! 150: #define UDF_ICB_TYPE_SYMLINK 0x0c
! 151: #define UDF_ICB_TYPE_VAT_250 0xf8
! 152: #define UDF_ICB_TAG_FLAGS_SETUID 0x40
! 153: #define UDF_ICB_TAG_FLAGS_SETGID 0x80
! 154: #define UDF_ICB_TAG_FLAGS_STICKY 0x100
! 155:
! 156: /* Anchor Volume Descriptor Pointer [3/10.2] */
! 157: struct anchor_vdp {
! 158: struct desc_tag tag;
! 159: struct extent_ad main_vds_ex;
! 160: struct extent_ad reserve_vds_ex;
! 161: } __packed;
! 162:
! 163: /* Volume Descriptor Pointer [3/10.3] */
! 164: struct vol_desc_ptr {
! 165: struct desc_tag tag;
! 166: uint32_t vds_number;
! 167: struct extent_ad next_vds_ex;
! 168: } __packed;
! 169:
! 170: /* Primary Volume Descriptor [3/10.1] */
! 171: struct pri_vol_desc {
! 172: struct desc_tag tag;
! 173: uint32_t seq_num;
! 174: uint32_t pdv_num;
! 175: char vol_id[32];
! 176: uint16_t vds_num;
! 177: uint16_t max_vol_seq;
! 178: uint16_t ichg_lvl;
! 179: uint16_t max_ichg_lvl;
! 180: uint32_t charset_list;
! 181: uint32_t max_charset_list;
! 182: char volset_id[128];
! 183: struct charspec desc_charset;
! 184: struct charspec explanatory_charset;
! 185: struct extent_ad vol_abstract;
! 186: struct extent_ad vol_copyright;
! 187: struct regid app_id;
! 188: struct timestamp time;
! 189: struct regid imp_id;
! 190: uint8_t imp_use[64];
! 191: uint32_t prev_vds_lov;
! 192: uint16_t flags;
! 193: uint8_t reserved[22];
! 194: } __packed;
! 195:
! 196: /* Logical Volume Descriptor [3/10.6] */
! 197: struct logvol_desc {
! 198: struct desc_tag tag;
! 199: uint32_t seq_num;
! 200: struct charspec desc_charset;
! 201: char logvol_id[128];
! 202: uint32_t lb_size;
! 203: struct regid domain_id;
! 204: union {
! 205: struct long_ad fsd_loc;
! 206: uint8_t logvol_content_use[16];
! 207: } _lvd_use;
! 208: uint32_t mt_l; /* Partition map length */
! 209: uint32_t n_pm; /* Number of partition maps */
! 210: struct regid imp_id;
! 211: uint8_t imp_use[128];
! 212: struct extent_ad integrity_seq_id;
! 213: uint8_t maps[1];
! 214: } __packed;
! 215:
! 216: /* Type 1 Partition Map [3/10.7.2] */
! 217: struct part_map_1 {
! 218: uint8_t type;
! 219: uint8_t len;
! 220: uint16_t vol_seq_num;
! 221: uint16_t part_num;
! 222: } __packed;
! 223:
! 224: #define UDF_PMAP_TYPE1_SIZE 6
! 225:
! 226: /* Type 2 Partition Map [3/10.7.3] */
! 227: struct part_map_2 {
! 228: uint8_t type;
! 229: uint8_t len;
! 230: uint8_t part_id[62];
! 231: } __packed;
! 232:
! 233: #define UDF_PMAP_TYPE2_SIZE 64
! 234:
! 235: /* Virtual Partition Map [UDF 2.01/2.2.8] */
! 236: struct part_map_virt {
! 237: uint8_t type;
! 238: uint8_t len;
! 239: uint8_t reserved[2];
! 240: struct regid id;
! 241: uint16_t vol_seq_num;
! 242: uint16_t part_num;
! 243: uint8_t reserved1[24];
! 244: } __packed;
! 245:
! 246: /* Sparable Partition Map [UDF 2.01/2.2.9] */
! 247: struct part_map_spare {
! 248: uint8_t type;
! 249: uint8_t len;
! 250: uint8_t reserved[2];
! 251: struct regid id;
! 252: uint16_t vol_seq_num;
! 253: uint16_t part_num;
! 254: uint16_t packet_len;
! 255: uint8_t n_st; /* Number of Sparing Tables */
! 256: uint8_t reserved1;
! 257: uint32_t st_size;
! 258: uint32_t st_loc[1];
! 259: } __packed;
! 260:
! 261: union udf_pmap {
! 262: struct part_map_1 pm1;
! 263: struct part_map_2 pm2;
! 264: struct part_map_virt pmv;
! 265: struct part_map_spare pms;
! 266: };
! 267:
! 268: /* Sparing Map Entry [UDF 2.01/2.2.11] */
! 269: struct spare_map_entry {
! 270: uint32_t org;
! 271: uint32_t map;
! 272: } __packed;
! 273:
! 274: /* Sparing Table [UDF 2.01/2.2.11] */
! 275: struct udf_sparing_table {
! 276: struct desc_tag tag;
! 277: struct regid id;
! 278: uint16_t rt_l; /* Relocation Table len */
! 279: uint8_t reserved[2];
! 280: uint32_t seq_num;
! 281: struct spare_map_entry entries[1];
! 282: } __packed;
! 283:
! 284: /* Partition Descriptor [3/10.5] */
! 285: struct part_desc {
! 286: struct desc_tag tag;
! 287: uint32_t seq_num;
! 288: uint16_t flags;
! 289: uint16_t part_num;
! 290: struct regid contents;
! 291: uint8_t contents_use[128];
! 292: uint32_t access_type;
! 293: uint32_t start_loc;
! 294: uint32_t part_len;
! 295: struct regid imp_id;
! 296: uint8_t imp_use[128];
! 297: uint8_t reserved[156];
! 298: } __packed;
! 299:
! 300: /* File Set Descriptor [4/14.1] */
! 301: struct fileset_desc {
! 302: struct desc_tag tag;
! 303: struct timestamp time;
! 304: uint16_t ichg_lvl;
! 305: uint16_t max_ichg_lvl;
! 306: uint32_t charset_list;
! 307: uint32_t max_charset_list;
! 308: uint32_t fileset_num;
! 309: uint32_t fileset_desc_num;
! 310: struct charspec logvol_id_charset;
! 311: char logvol_id[128];
! 312: struct charspec fileset_charset;
! 313: char fileset_id[32];
! 314: char copyright_file_id[32];
! 315: char abstract_file_id[32];
! 316: struct long_ad rootdir_icb;
! 317: struct regid domain_id;
! 318: struct long_ad next_ex;
! 319: struct long_ad streamdir_icb;
! 320: uint8_t reserved[32];
! 321: } __packed;
! 322:
! 323: /* File Identifier Descriptor [4/14.4] */
! 324: struct fileid_desc {
! 325: struct desc_tag tag;
! 326: uint16_t file_num;
! 327: uint8_t file_char;
! 328: uint8_t l_fi; /* Length of file identifier area */
! 329: struct long_ad icb;
! 330: uint16_t l_iu; /* Length of implementation use area */
! 331: uint8_t data[1];
! 332: } __packed;
! 333: #define UDF_FID_SIZE 38
! 334: #define UDF_FILE_CHAR_VIS (1 << 0) /* Visible */
! 335: #define UDF_FILE_CHAR_DIR (1 << 1) /* Directory */
! 336: #define UDF_FILE_CHAR_DEL (1 << 2) /* Deleted */
! 337: #define UDF_FILE_CHAR_PAR (1 << 3) /* Parent Directory */
! 338: #define UDF_FILE_CHAR_META (1 << 4) /* Stream metadata */
! 339:
! 340: /* File Entry [4/14.9] */
! 341: struct file_entry {
! 342: struct desc_tag tag;
! 343: struct icb_tag icbtag;
! 344: uint32_t uid;
! 345: uint32_t gid;
! 346: uint32_t perm;
! 347: uint16_t link_cnt;
! 348: uint8_t rec_format;
! 349: uint8_t rec_disp_attr;
! 350: uint32_t rec_len;
! 351: uint64_t inf_len;
! 352: uint64_t logblks_rec;
! 353: struct timestamp atime;
! 354: struct timestamp mtime;
! 355: struct timestamp attrtime;
! 356: uint32_t ckpoint;
! 357: struct long_ad ex_attr_icb;
! 358: struct regid imp_id;
! 359: uint64_t unique_id;
! 360: uint32_t l_ea; /* Length of extended attribute area */
! 361: uint32_t l_ad; /* Length of allocation descriptors */
! 362: uint8_t data[1];
! 363: } __packed;
! 364: #define UDF_FENTRY_SIZE 176
! 365: #define UDF_FENTRY_PERM_USER_MASK 0x07
! 366: #define UDF_FENTRY_PERM_GRP_MASK 0xE0
! 367: #define UDF_FENTRY_PERM_OWNER_MASK 0x1C00
! 368:
! 369: union dscrptr {
! 370: struct desc_tag tag;
! 371: struct anchor_vdp avdp;
! 372: struct vol_desc_ptr vdp;
! 373: struct pri_vol_desc pvd;
! 374: struct logvol_desc lvd;
! 375: struct part_desc pd;
! 376: struct fileset_desc fsd;
! 377: struct fileid_desc fid;
! 378: struct file_entry fe;
! 379: };
! 380:
! 381: /* Useful defines */
! 382:
! 383: #define GETICB(ad_type, fentry, offset) \
! 384: (struct ad_type *)&fentry->data[offset]
! 385:
! 386: #define GETICBLEN(ad_type, icb) letoh32(((struct ad_type *)(icb))->len)
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