freebsd-nq/sys/fs/udf/ecma167-udf.h
Pedro F. Giffuni d63027b668 sys/fs: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:15:37 +00:00

389 lines
9.1 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2001, 2002 Scott Long <scottl@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/* ecma167-udf.h */
/* Structure/definitions/constants a la ECMA 167 rev. 3 */
/* Tag identifiers */
enum {
TAGID_PRI_VOL = 1,
TAGID_ANCHOR = 2,
TAGID_VOL = 3,
TAGID_IMP_VOL = 4,
TAGID_PARTITION = 5,
TAGID_LOGVOL = 6,
TAGID_UNALLOC_SPACE = 7,
TAGID_TERM = 8,
TAGID_LOGVOL_INTEGRITY = 9,
TAGID_FSD = 256,
TAGID_FID = 257,
TAGID_FENTRY = 261
};
/* Descriptor tag [3/7.2] */
struct desc_tag {
uint16_t id;
uint16_t descriptor_ver;
uint8_t cksum;
uint8_t reserved;
uint16_t serial_num;
uint16_t desc_crc;
uint16_t desc_crc_len;
uint32_t tag_loc;
} __packed;
/* Recorded Address [4/7.1] */
struct lb_addr {
uint32_t lb_num;
uint16_t part_num;
} __packed;
/* Extent Descriptor [3/7.1] */
struct extent_ad {
uint32_t len;
uint32_t loc;
} __packed;
/* Short Allocation Descriptor [4/14.14.1] */
struct short_ad {
uint32_t len;
uint32_t pos;
} __packed;
/* Long Allocation Descriptor [4/14.14.2] */
struct long_ad {
uint32_t len;
struct lb_addr loc;
uint16_t ad_flags;
uint32_t ad_id;
} __packed;
/* Extended Allocation Descriptor [4/14.14.3] */
struct ext_ad {
uint32_t ex_len;
uint32_t rec_len;
uint32_t inf_len;
struct lb_addr ex_loc;
uint8_t reserved[2];
} __packed;
union icb {
struct short_ad s_ad;
struct long_ad l_ad;
struct ext_ad e_ad;
};
/* Character set spec [1/7.2.1] */
struct charspec {
uint8_t type;
uint8_t inf[63];
} __packed;
/* Timestamp [1/7.3] */
struct timestamp {
uint16_t type_tz;
uint16_t year;
uint8_t month;
uint8_t day;
uint8_t hour;
uint8_t minute;
uint8_t second;
uint8_t centisec;
uint8_t hund_usec;
uint8_t usec;
} __packed;
/* Entity Identifier [1/7.4] */
#define UDF_REGID_ID_SIZE 23
struct regid {
uint8_t flags;
uint8_t id[UDF_REGID_ID_SIZE];
uint8_t id_suffix[8];
} __packed;
/* ICB Tag [4/14.6] */
struct icb_tag {
uint32_t prev_num_dirs;
uint16_t strat_type;
uint8_t strat_param[2];
uint16_t max_num_entries;
uint8_t reserved;
uint8_t file_type;
struct lb_addr parent_icb;
uint16_t flags;
} __packed;
#define UDF_ICB_TAG_FLAGS_SETUID 0x40
#define UDF_ICB_TAG_FLAGS_SETGID 0x80
#define UDF_ICB_TAG_FLAGS_STICKY 0x100
/* Anchor Volume Descriptor Pointer [3/10.2] */
struct anchor_vdp {
struct desc_tag tag;
struct extent_ad main_vds_ex;
struct extent_ad reserve_vds_ex;
} __packed;
/* Volume Descriptor Pointer [3/10.3] */
struct vol_desc_ptr {
struct desc_tag tag;
uint32_t vds_number;
struct extent_ad next_vds_ex;
} __packed;
/* Primary Volume Descriptor [3/10.1] */
struct pri_vol_desc {
struct desc_tag tag;
uint32_t seq_num;
uint32_t pdv_num;
char vol_id[32];
uint16_t vds_num;
uint16_t max_vol_seq;
uint16_t ichg_lvl;
uint16_t max_ichg_lvl;
uint32_t charset_list;
uint32_t max_charset_list;
char volset_id[128];
struct charspec desc_charset;
struct charspec explanatory_charset;
struct extent_ad vol_abstract;
struct extent_ad vol_copyright;
struct regid app_id;
struct timestamp time;
struct regid imp_id;
uint8_t imp_use[64];
uint32_t prev_vds_lov;
uint16_t flags;
uint8_t reserved[22];
} __packed;
/* Logical Volume Descriptor [3/10.6] */
struct logvol_desc {
struct desc_tag tag;
uint32_t seq_num;
struct charspec desc_charset;
char logvol_id[128];
uint32_t lb_size;
struct regid domain_id;
union {
struct long_ad fsd_loc;
uint8_t logvol_content_use[16];
} _lvd_use;
uint32_t mt_l; /* Partition map length */
uint32_t n_pm; /* Number of partition maps */
struct regid imp_id;
uint8_t imp_use[128];
struct extent_ad integrity_seq_id;
uint8_t maps[1];
} __packed;
/* Type 1 Partition Map [3/10.7.2] */
struct part_map_1 {
uint8_t type;
uint8_t len;
uint16_t vol_seq_num;
uint16_t part_num;
} __packed;
#define UDF_PMAP_TYPE1_SIZE 6
/* Type 2 Partition Map [3/10.7.3] */
struct part_map_2 {
uint8_t type;
uint8_t len;
uint8_t part_id[62];
} __packed;
#define UDF_PMAP_TYPE2_SIZE 64
/* Virtual Partition Map [UDF 2.01/2.2.8] */
struct part_map_virt {
uint8_t type;
uint8_t len;
uint8_t reserved[2];
struct regid id;
uint16_t vol_seq_num;
uint16_t part_num;
uint8_t reserved1[24];
} __packed;
/* Sparable Partition Map [UDF 2.01/2.2.9] */
struct part_map_spare {
uint8_t type;
uint8_t len;
uint8_t reserved[2];
struct regid id;
uint16_t vol_seq_num;
uint16_t part_num;
uint16_t packet_len;
uint8_t n_st; /* Number of Sparing Tables */
uint8_t reserved1;
uint32_t st_size;
uint32_t st_loc[1];
} __packed;
union udf_pmap {
struct part_map_1 pm1;
struct part_map_2 pm2;
struct part_map_virt pmv;
struct part_map_spare pms;
};
/* Sparing Map Entry [UDF 2.01/2.2.11] */
struct spare_map_entry {
uint32_t org;
uint32_t map;
} __packed;
/* Sparing Table [UDF 2.01/2.2.11] */
struct udf_sparing_table {
struct desc_tag tag;
struct regid id;
uint16_t rt_l; /* Relocation Table len */
uint8_t reserved[2];
uint32_t seq_num;
struct spare_map_entry entries[1];
} __packed;
/* Partition Descriptor [3/10.5] */
struct part_desc {
struct desc_tag tag;
uint32_t seq_num;
uint16_t flags;
uint16_t part_num;
struct regid contents;
uint8_t contents_use[128];
uint32_t access_type;
uint32_t start_loc;
uint32_t part_len;
struct regid imp_id;
uint8_t imp_use[128];
uint8_t reserved[156];
} __packed;
/* File Set Descriptor [4/14.1] */
struct fileset_desc {
struct desc_tag tag;
struct timestamp time;
uint16_t ichg_lvl;
uint16_t max_ichg_lvl;
uint32_t charset_list;
uint32_t max_charset_list;
uint32_t fileset_num;
uint32_t fileset_desc_num;
struct charspec logvol_id_charset;
char logvol_id[128];
struct charspec fileset_charset;
char fileset_id[32];
char copyright_file_id[32];
char abstract_file_id[32];
struct long_ad rootdir_icb;
struct regid domain_id;
struct long_ad next_ex;
struct long_ad streamdir_icb;
uint8_t reserved[32];
} __packed;
/* File Identifier Descriptor [4/14.4] */
struct fileid_desc {
struct desc_tag tag;
uint16_t file_num;
uint8_t file_char;
uint8_t l_fi; /* Length of file identifier area */
struct long_ad icb;
uint16_t l_iu; /* Length of implementation use area */
uint8_t data[1];
} __packed;
#define UDF_FID_SIZE 38
#define UDF_FILE_CHAR_VIS (1 << 0) /* Visible */
#define UDF_FILE_CHAR_DIR (1 << 1) /* Directory */
#define UDF_FILE_CHAR_DEL (1 << 2) /* Deleted */
#define UDF_FILE_CHAR_PAR (1 << 3) /* Parent Directory */
#define UDF_FILE_CHAR_META (1 << 4) /* Stream metadata */
/* File Entry [4/14.9] */
struct file_entry {
struct desc_tag tag;
struct icb_tag icbtag;
uint32_t uid;
uint32_t gid;
uint32_t perm;
uint16_t link_cnt;
uint8_t rec_format;
uint8_t rec_disp_attr;
uint32_t rec_len;
uint64_t inf_len;
uint64_t logblks_rec;
struct timestamp atime;
struct timestamp mtime;
struct timestamp attrtime;
uint32_t ckpoint;
struct long_ad ex_attr_icb;
struct regid imp_id;
uint64_t unique_id;
uint32_t l_ea; /* Length of extended attribute area */
uint32_t l_ad; /* Length of allocation descriptors */
uint8_t data[1];
} __packed;
#define UDF_FENTRY_SIZE 176
#define UDF_FENTRY_PERM_USER_MASK 0x07
#define UDF_FENTRY_PERM_GRP_MASK 0xE0
#define UDF_FENTRY_PERM_OWNER_MASK 0x1C00
/* Path Component [4/14.16.1] */
struct path_component {
uint8_t type;
uint8_t length;
uint16_t version;
uint8_t identifier[1];
} __packed;
#define UDF_PATH_ROOT 2
#define UDF_PATH_DOTDOT 3
#define UDF_PATH_DOT 4
#define UDF_PATH_PATH 5
union dscrptr {
struct desc_tag tag;
struct anchor_vdp avdp;
struct vol_desc_ptr vdp;
struct pri_vol_desc pvd;
struct logvol_desc lvd;
struct part_desc pd;
struct fileset_desc fsd;
struct fileid_desc fid;
struct file_entry fe;
};
/* Useful defines */
#define GETICB(ad_type, fentry, offset) \
(struct ad_type *)&fentry->data[offset]
#define GETICBLEN(ad_type, icb) le32toh(((struct ad_type *)(icb))->len)