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344 lines
12 KiB
C
344 lines
12 KiB
C
/*-
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* Copyright (c) 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley
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* by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
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* Support code is derived from software contributed to Berkeley
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* by Atsushi Murai (amurai@spec.co.jp).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)iso.h 8.6 (Berkeley) 5/10/95
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* $FreeBSD$
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*/
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#define ISODCL(from, to) (to - from + 1)
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struct iso_volume_descriptor {
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char type[ISODCL(1,1)]; /* 711 */
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char id[ISODCL(2,6)];
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char version[ISODCL(7,7)];
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char unused[ISODCL(8,8)];
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char type_sierra[ISODCL(9,9)]; /* 711 */
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char id_sierra[ISODCL(10,14)];
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char version_sierra[ISODCL(15,15)];
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char data[ISODCL(16,2048)];
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};
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/* volume descriptor types */
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#define ISO_VD_PRIMARY 1
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#define ISO_VD_SUPPLEMENTARY 2
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#define ISO_VD_END 255
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#define ISO_STANDARD_ID "CD001"
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#define ISO_ECMA_ID "CDW01"
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#define ISO_SIERRA_ID "CDROM"
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struct iso_primary_descriptor {
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char type [ISODCL ( 1, 1)]; /* 711 */
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char id [ISODCL ( 2, 6)];
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char version [ISODCL ( 7, 7)]; /* 711 */
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char unused1 [ISODCL ( 8, 8)];
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char system_id [ISODCL ( 9, 40)]; /* achars */
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char volume_id [ISODCL ( 41, 72)]; /* dchars */
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char unused2 [ISODCL ( 73, 80)];
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char volume_space_size [ISODCL ( 81, 88)]; /* 733 */
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char unused3 [ISODCL ( 89, 120)];
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char volume_set_size [ISODCL (121, 124)]; /* 723 */
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char volume_sequence_number [ISODCL (125, 128)]; /* 723 */
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char logical_block_size [ISODCL (129, 132)]; /* 723 */
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char path_table_size [ISODCL (133, 140)]; /* 733 */
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char type_l_path_table [ISODCL (141, 144)]; /* 731 */
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char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */
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char type_m_path_table [ISODCL (149, 152)]; /* 732 */
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char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */
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char root_directory_record [ISODCL (157, 190)]; /* 9.1 */
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char volume_set_id [ISODCL (191, 318)]; /* dchars */
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char publisher_id [ISODCL (319, 446)]; /* achars */
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char preparer_id [ISODCL (447, 574)]; /* achars */
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char application_id [ISODCL (575, 702)]; /* achars */
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char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */
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char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */
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char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */
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char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */
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char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */
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char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */
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char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */
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char file_structure_version [ISODCL (882, 882)]; /* 711 */
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char unused4 [ISODCL (883, 883)];
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char application_data [ISODCL (884, 1395)];
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char unused5 [ISODCL (1396, 2048)];
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};
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#define ISO_DEFAULT_BLOCK_SIZE 2048
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/*
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* Used by Microsoft Joliet extension to ISO9660. Almost the same
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* as PVD, but byte position 8 is a flag, and 89-120 is for escape.
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*/
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struct iso_supplementary_descriptor {
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char type [ISODCL ( 1, 1)]; /* 711 */
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char id [ISODCL ( 2, 6)];
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char version [ISODCL ( 7, 7)]; /* 711 */
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char flags [ISODCL ( 8, 8)]; /* 711? */
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char system_id [ISODCL ( 9, 40)]; /* achars */
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char volume_id [ISODCL ( 41, 72)]; /* dchars */
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char unused2 [ISODCL ( 73, 80)];
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char volume_space_size [ISODCL ( 81, 88)]; /* 733 */
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char escape [ISODCL ( 89, 120)];
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char volume_set_size [ISODCL (121, 124)]; /* 723 */
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char volume_sequence_number [ISODCL (125, 128)]; /* 723 */
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char logical_block_size [ISODCL (129, 132)]; /* 723 */
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char path_table_size [ISODCL (133, 140)]; /* 733 */
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char type_l_path_table [ISODCL (141, 144)]; /* 731 */
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char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */
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char type_m_path_table [ISODCL (149, 152)]; /* 732 */
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char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */
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char root_directory_record [ISODCL (157, 190)]; /* 9.1 */
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char volume_set_id [ISODCL (191, 318)]; /* dchars */
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char publisher_id [ISODCL (319, 446)]; /* achars */
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char preparer_id [ISODCL (447, 574)]; /* achars */
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char application_id [ISODCL (575, 702)]; /* achars */
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char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */
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char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */
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char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */
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char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */
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char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */
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char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */
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char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */
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char file_structure_version [ISODCL (882, 882)]; /* 711 */
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char unused4 [ISODCL (883, 883)];
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char application_data [ISODCL (884, 1395)];
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char unused5 [ISODCL (1396, 2048)];
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};
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struct iso_sierra_primary_descriptor {
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char unknown1 [ISODCL ( 1, 8)]; /* 733 */
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char type [ISODCL ( 9, 9)]; /* 711 */
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char id [ISODCL ( 10, 14)];
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char version [ISODCL ( 15, 15)]; /* 711 */
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char unused1 [ISODCL ( 16, 16)];
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char system_id [ISODCL ( 17, 48)]; /* achars */
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char volume_id [ISODCL ( 49, 80)]; /* dchars */
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char unused2 [ISODCL ( 81, 88)];
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char volume_space_size [ISODCL ( 89, 96)]; /* 733 */
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char unused3 [ISODCL ( 97, 128)];
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char volume_set_size [ISODCL (129, 132)]; /* 723 */
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char volume_sequence_number [ISODCL (133, 136)]; /* 723 */
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char logical_block_size [ISODCL (137, 140)]; /* 723 */
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char path_table_size [ISODCL (141, 148)]; /* 733 */
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char type_l_path_table [ISODCL (149, 152)]; /* 731 */
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char opt_type_l_path_table [ISODCL (153, 156)]; /* 731 */
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char unknown2 [ISODCL (157, 160)]; /* 731 */
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char unknown3 [ISODCL (161, 164)]; /* 731 */
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char type_m_path_table [ISODCL (165, 168)]; /* 732 */
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char opt_type_m_path_table [ISODCL (169, 172)]; /* 732 */
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char unknown4 [ISODCL (173, 176)]; /* 732 */
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char unknown5 [ISODCL (177, 180)]; /* 732 */
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char root_directory_record [ISODCL (181, 214)]; /* 9.1 */
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char volume_set_id [ISODCL (215, 342)]; /* dchars */
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char publisher_id [ISODCL (343, 470)]; /* achars */
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char preparer_id [ISODCL (471, 598)]; /* achars */
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char application_id [ISODCL (599, 726)]; /* achars */
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char copyright_id [ISODCL (727, 790)]; /* achars */
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char creation_date [ISODCL (791, 806)]; /* ? */
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char modification_date [ISODCL (807, 822)]; /* ? */
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char expiration_date [ISODCL (823, 838)]; /* ? */
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char effective_date [ISODCL (839, 854)]; /* ? */
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char file_structure_version [ISODCL (855, 855)]; /* 711 */
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char unused4 [ISODCL (856, 2048)];
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};
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struct iso_directory_record {
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char length [ISODCL (1, 1)]; /* 711 */
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char ext_attr_length [ISODCL (2, 2)]; /* 711 */
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u_char extent [ISODCL (3, 10)]; /* 733 */
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u_char size [ISODCL (11, 18)]; /* 733 */
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char date [ISODCL (19, 25)]; /* 7 by 711 */
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char flags [ISODCL (26, 26)];
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char file_unit_size [ISODCL (27, 27)]; /* 711 */
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char interleave [ISODCL (28, 28)]; /* 711 */
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char volume_sequence_number [ISODCL (29, 32)]; /* 723 */
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char name_len [ISODCL (33, 33)]; /* 711 */
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char name [1]; /* XXX */
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};
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/* can't take sizeof(iso_directory_record), because of possible alignment
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of the last entry (34 instead of 33) */
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#define ISO_DIRECTORY_RECORD_SIZE 33
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struct iso_extended_attributes {
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u_char owner [ISODCL (1, 4)]; /* 723 */
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u_char group [ISODCL (5, 8)]; /* 723 */
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u_char perm [ISODCL (9, 10)]; /* 9.5.3 */
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char ctime [ISODCL (11, 27)]; /* 8.4.26.1 */
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char mtime [ISODCL (28, 44)]; /* 8.4.26.1 */
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char xtime [ISODCL (45, 61)]; /* 8.4.26.1 */
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char ftime [ISODCL (62, 78)]; /* 8.4.26.1 */
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char recfmt [ISODCL (79, 79)]; /* 711 */
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char recattr [ISODCL (80, 80)]; /* 711 */
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u_char reclen [ISODCL (81, 84)]; /* 723 */
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char system_id [ISODCL (85, 116)]; /* achars */
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char system_use [ISODCL (117, 180)];
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char version [ISODCL (181, 181)]; /* 711 */
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char len_esc [ISODCL (182, 182)]; /* 711 */
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char reserved [ISODCL (183, 246)];
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u_char len_au [ISODCL (247, 250)]; /* 723 */
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};
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#ifdef _KERNEL
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/* CD-ROM Format type */
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enum ISO_FTYPE { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP,
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ISO_FTYPE_JOLIET, ISO_FTYPE_ECMA, ISO_FTYPE_HIGH_SIERRA };
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#ifndef ISOFSMNT_ROOT
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#define ISOFSMNT_ROOT 0
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#endif
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struct iso_mnt {
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int im_flags;
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struct mount *im_mountp;
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struct cdev *im_dev;
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struct vnode *im_devvp;
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struct g_consumer *im_cp;
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struct bufobj *im_bo;
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int logical_block_size;
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int im_bshift;
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int im_bmask;
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int volume_space_size;
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char root[ISODCL (157, 190)];
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int root_extent;
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int root_size;
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enum ISO_FTYPE iso_ftype;
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int rr_skip;
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int rr_skip0;
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int joliet_level;
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void *im_d2l;
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void *im_l2d;
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};
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#define VFSTOISOFS(mp) ((struct iso_mnt *)((mp)->mnt_data))
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#define blkoff(imp, loc) ((loc) & (imp)->im_bmask)
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#define lblktosize(imp, blk) ((blk) << (imp)->im_bshift)
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#define lblkno(imp, loc) ((loc) >> (imp)->im_bshift)
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#define blksize(imp, ip, lbn) ((imp)->logical_block_size)
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int cd9660_vget_internal(struct mount *, ino_t, int, struct vnode **, int,
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struct iso_directory_record *);
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#define cd9660_sysctl ((int (*)(int *, u_int, void *, size_t *, void *, \
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size_t, struct proc *))eopnotsupp)
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extern struct vop_vector cd9660_vnodeops;
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extern struct vop_vector cd9660_fifoops;
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int isochar(u_char *, u_char *, int, u_short *, int *, int, void *);
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int isofncmp(u_char *, int, u_char *, int, int, int, void *, void *);
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void isofntrans(u_char *, int, u_char *, u_short *, int, int, int, int, void *);
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ino_t isodirino(struct iso_directory_record *, struct iso_mnt *);
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u_short sgetrune(const char *, size_t, char const **, int, void *);
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#endif /* _KERNEL */
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/*
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* The isonum_xxx functions are inlined anyway, and could come handy even
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* outside the kernel. Thus we don't hide them here.
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*/
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/*
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* 7xy
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* x -> 1 = 8 bits, 2 = 16 bits, 3 = 32 bits
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* y -> 1 = little-endian, 2 = big-endian, 3 = both (le then be)
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*/
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static __inline uint8_t
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isonum_711(unsigned char *p)
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{
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return p[0];
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}
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static __inline uint8_t
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isonum_712(unsigned char *p)
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{
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return p[0];
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}
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static __inline uint8_t
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isonum_713(unsigned char *p)
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{
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return p[0];
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}
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static __inline uint16_t
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isonum_721(unsigned char *p)
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{
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return (p[0] | p[1] << 8);
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}
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static __inline uint16_t
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isonum_722(unsigned char *p)
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{
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return (p[1] | p[0] << 8);
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}
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static __inline uint16_t
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isonum_723(unsigned char *p)
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{
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return (p[0] | p[1] << 8);
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}
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static __inline uint32_t
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isonum_731(unsigned char *p)
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{
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return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24);
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}
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static __inline uint32_t
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isonum_732(unsigned char *p)
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{
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return (p[3] | p[2] << 8 | p[1] << 16 | p[0] << 24);
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}
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static __inline uint32_t
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isonum_733(unsigned char *p)
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{
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return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24);
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}
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/*
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* Associated files have a leading '='.
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*/
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#define ASSOCCHAR '='
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