1*201b66b7SHaojian Zhuang /* 2*201b66b7SHaojian Zhuang * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 3*201b66b7SHaojian Zhuang * 4*201b66b7SHaojian Zhuang * Redistribution and use in source and binary forms, with or without 5*201b66b7SHaojian Zhuang * modification, are permitted provided that the following conditions are met: 6*201b66b7SHaojian Zhuang * 7*201b66b7SHaojian Zhuang * Redistributions of source code must retain the above copyright notice, this 8*201b66b7SHaojian Zhuang * list of conditions and the following disclaimer. 9*201b66b7SHaojian Zhuang * 10*201b66b7SHaojian Zhuang * Redistributions in binary form must reproduce the above copyright notice, 11*201b66b7SHaojian Zhuang * this list of conditions and the following disclaimer in the documentation 12*201b66b7SHaojian Zhuang * and/or other materials provided with the distribution. 13*201b66b7SHaojian Zhuang * 14*201b66b7SHaojian Zhuang * Neither the name of ARM nor the names of its contributors may be used 15*201b66b7SHaojian Zhuang * to endorse or promote products derived from this software without specific 16*201b66b7SHaojian Zhuang * prior written permission. 17*201b66b7SHaojian Zhuang * 18*201b66b7SHaojian Zhuang * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19*201b66b7SHaojian Zhuang * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20*201b66b7SHaojian Zhuang * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21*201b66b7SHaojian Zhuang * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22*201b66b7SHaojian Zhuang * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23*201b66b7SHaojian Zhuang * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24*201b66b7SHaojian Zhuang * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25*201b66b7SHaojian Zhuang * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26*201b66b7SHaojian Zhuang * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27*201b66b7SHaojian Zhuang * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28*201b66b7SHaojian Zhuang * POSSIBILITY OF SUCH DAMAGE. 29*201b66b7SHaojian Zhuang */ 30*201b66b7SHaojian Zhuang 31*201b66b7SHaojian Zhuang #ifndef __GPT_H__ 32*201b66b7SHaojian Zhuang #define __GPT_H__ 33*201b66b7SHaojian Zhuang 34*201b66b7SHaojian Zhuang #include <partition.h> 35*201b66b7SHaojian Zhuang 36*201b66b7SHaojian Zhuang #define PARTITION_TYPE_GPT 0xee 37*201b66b7SHaojian Zhuang #define GPT_HEADER_OFFSET PARTITION_BLOCK_SIZE 38*201b66b7SHaojian Zhuang #define GPT_ENTRY_OFFSET (GPT_HEADER_OFFSET + \ 39*201b66b7SHaojian Zhuang PARTITION_BLOCK_SIZE) 40*201b66b7SHaojian Zhuang #define GUID_LEN 16 41*201b66b7SHaojian Zhuang 42*201b66b7SHaojian Zhuang #define GPT_SIGNATURE "EFI PART" 43*201b66b7SHaojian Zhuang 44*201b66b7SHaojian Zhuang typedef struct gpt_entry { 45*201b66b7SHaojian Zhuang unsigned char type_uuid[GUID_LEN]; 46*201b66b7SHaojian Zhuang unsigned char unique_uuid[GUID_LEN]; 47*201b66b7SHaojian Zhuang unsigned long long first_lba; 48*201b66b7SHaojian Zhuang unsigned long long last_lba; 49*201b66b7SHaojian Zhuang unsigned long long attr; 50*201b66b7SHaojian Zhuang unsigned short name[EFI_NAMELEN]; 51*201b66b7SHaojian Zhuang } gpt_entry_t; 52*201b66b7SHaojian Zhuang 53*201b66b7SHaojian Zhuang typedef struct gpt_header { 54*201b66b7SHaojian Zhuang unsigned char signature[8]; 55*201b66b7SHaojian Zhuang unsigned int revision; 56*201b66b7SHaojian Zhuang unsigned int size; 57*201b66b7SHaojian Zhuang unsigned int header_crc; 58*201b66b7SHaojian Zhuang unsigned int reserved; 59*201b66b7SHaojian Zhuang unsigned long long current_lba; 60*201b66b7SHaojian Zhuang unsigned long long backup_lba; 61*201b66b7SHaojian Zhuang unsigned long long first_lba; 62*201b66b7SHaojian Zhuang unsigned long long last_lba; 63*201b66b7SHaojian Zhuang unsigned char disk_uuid[16]; 64*201b66b7SHaojian Zhuang /* starting LBA of array of partition entries */ 65*201b66b7SHaojian Zhuang unsigned long long part_lba; 66*201b66b7SHaojian Zhuang /* number of partition entries in array */ 67*201b66b7SHaojian Zhuang unsigned int list_num; 68*201b66b7SHaojian Zhuang /* size of a single partition entry (usually 128) */ 69*201b66b7SHaojian Zhuang unsigned int part_size; 70*201b66b7SHaojian Zhuang unsigned int part_crc; 71*201b66b7SHaojian Zhuang } gpt_header_t; 72*201b66b7SHaojian Zhuang 73*201b66b7SHaojian Zhuang int parse_gpt_entry(gpt_entry_t *gpt_entry, partition_entry_t *entry); 74*201b66b7SHaojian Zhuang 75*201b66b7SHaojian Zhuang #endif /* __GPT_H__ */ 76