1 /* 2 * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef __GPT_H__ 32 #define __GPT_H__ 33 34 #include <partition.h> 35 36 #define PARTITION_TYPE_GPT 0xee 37 #define GPT_HEADER_OFFSET PARTITION_BLOCK_SIZE 38 #define GPT_ENTRY_OFFSET (GPT_HEADER_OFFSET + \ 39 PARTITION_BLOCK_SIZE) 40 #define GUID_LEN 16 41 42 #define GPT_SIGNATURE "EFI PART" 43 44 typedef struct gpt_entry { 45 unsigned char type_uuid[GUID_LEN]; 46 unsigned char unique_uuid[GUID_LEN]; 47 unsigned long long first_lba; 48 unsigned long long last_lba; 49 unsigned long long attr; 50 unsigned short name[EFI_NAMELEN]; 51 } gpt_entry_t; 52 53 typedef struct gpt_header { 54 unsigned char signature[8]; 55 unsigned int revision; 56 unsigned int size; 57 unsigned int header_crc; 58 unsigned int reserved; 59 unsigned long long current_lba; 60 unsigned long long backup_lba; 61 unsigned long long first_lba; 62 unsigned long long last_lba; 63 unsigned char disk_uuid[16]; 64 /* starting LBA of array of partition entries */ 65 unsigned long long part_lba; 66 /* number of partition entries in array */ 67 unsigned int list_num; 68 /* size of a single partition entry (usually 128) */ 69 unsigned int part_size; 70 unsigned int part_crc; 71 } gpt_header_t; 72 73 int parse_gpt_entry(gpt_entry_t *gpt_entry, partition_entry_t *entry); 74 75 #endif /* __GPT_H__ */ 76