1 /* 2 * The file header definition of a sparse VMware Virtual Disk (VMDK) file 3 * 4 * Copyright (C) 2009-2021, Joachim Metz <joachim.metz@gmail.com> 5 * 6 * Refer to AUTHORS for acknowledgements. 7 * 8 * This program is free software: you can redistribute it and/or modify 9 * it under the terms of the GNU Lesser General Public License as published by 10 * the Free Software Foundation, either version 3 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public License 19 * along with this program. If not, see <https://www.gnu.org/licenses/>. 20 */ 21 22 #if !defined( _VMDK_SPARSE_FILE_HEADER_H ) 23 #define _VMDK_SPARSE_FILE_HEADER_H 24 25 #include <common.h> 26 #include <types.h> 27 28 #if defined( __cplusplus ) 29 extern "C" { 30 #endif 31 32 typedef struct vmdk_sparse_file_header vmdk_sparse_file_header_t; 33 34 struct vmdk_sparse_file_header 35 { 36 /* The signature 37 * Consists of 4 bytes 38 * Contains: "KDMV" 39 */ 40 uint8_t signature[ 4 ]; 41 42 /* The version 43 * Consists of 4 bytes 44 */ 45 uint8_t version[ 4 ]; 46 47 /* The flags 48 * Consists of 4 bytes 49 */ 50 uint8_t flags[ 4 ]; 51 52 /* The maximum data number of sectors (capacity) 53 * Consists of 8 bytes 54 * Contains a value in sectors 55 */ 56 uint8_t maximum_data_number_of_sectors[ 8 ]; 57 58 /* The grain number of sectors 59 * Consists of 8 bytes 60 * Contains a value in sectors 61 */ 62 uint8_t grain_number_of_sectors[ 8 ]; 63 64 /* The descriptor sector number 65 * Consists of 8 bytes 66 * Contains a value in sectors 67 */ 68 uint8_t descriptor_sector_number[ 8 ]; 69 70 /* The descriptor number of sectors 71 * Consists of 8 bytes 72 * Contains a value in sectors 73 */ 74 uint8_t descriptor_number_of_sectors[ 8 ]; 75 76 /* The number of grain table entries 77 * Consists of 4 bytes 78 */ 79 uint8_t number_of_grain_table_entries[ 4 ]; 80 81 /* The secondary grain directory sector number 82 * Consists of 8 bytes 83 * Contains a value in sectors 84 */ 85 uint8_t secondary_grain_directory_sector_number[ 8 ]; 86 87 /* The primary grain directory sector number 88 * Consists of 8 bytes 89 * Contains a value in sectors 90 */ 91 uint8_t primary_grain_directory_sector_number[ 8 ]; 92 93 /* The metadata (overhead) number of sectors 94 * Consists of 8 bytes 95 * Contains a value in sectors 96 */ 97 uint8_t metadata_number_of_sectors[ 8 ]; 98 99 /* Value to indicate the VMDK was cleanly closed 100 * Consists of 1 byte 101 */ 102 uint8_t is_dirty; 103 104 /* The single end of line character 105 * Consists of 1 byte 106 * Contains: '\n' 107 */ 108 uint8_t single_end_of_line_character; 109 110 /* A non end of line character 111 * Consists of 1 byte 112 * Contains: ' ' 113 */ 114 uint8_t non_end_of_line_character; 115 116 /* The first double end of line character 117 * Consists of 1 byte 118 * Contains: '\r' 119 */ 120 uint8_t first_double_end_of_line_character; 121 122 /* The second double end of line character 123 * Consists of 1 byte 124 * Contains: '\n' 125 */ 126 uint8_t second_double_end_of_line_character; 127 128 /* The compression method 129 * Consists of 2 bytes 130 */ 131 uint8_t compression_method[ 2 ]; 132 133 /* Padding 134 * Consists of 433 bytes 135 */ 136 uint8_t padding[ 433 ]; 137 }; 138 139 #if defined( __cplusplus ) 140 } 141 #endif 142 143 #endif /* !defined( _VMDK_SPARSE_FILE_HEADER_H ) */ 144 145