From 55944e5e40b1be2afc4855d8d2baf4b73d1876b5 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 10 Apr 2024 22:49:52 +0200 Subject: Adding upstream version 255.4. Signed-off-by: Daniel Baumann --- src/shared/gpt.h | 102 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 src/shared/gpt.h (limited to 'src/shared/gpt.h') diff --git a/src/shared/gpt.h b/src/shared/gpt.h new file mode 100644 index 0000000..21976e5 --- /dev/null +++ b/src/shared/gpt.h @@ -0,0 +1,102 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include + +#include "sd-gpt.h" +#include "sd-id128.h" + +#include "architecture.h" +#include "id128-util.h" +#include "sparse-endian.h" + +/* maximum length of gpt label */ +#define GPT_LABEL_MAX 36 + +typedef enum PartitionDesignator { + PARTITION_ROOT, /* Primary architecture */ + PARTITION_USR, + PARTITION_HOME, + PARTITION_SRV, + PARTITION_ESP, + PARTITION_XBOOTLDR, + PARTITION_SWAP, + PARTITION_ROOT_VERITY, /* verity data for the PARTITION_ROOT partition */ + PARTITION_USR_VERITY, + PARTITION_ROOT_VERITY_SIG, /* PKCS#7 signature for root hash for the PARTITION_ROOT partition */ + PARTITION_USR_VERITY_SIG, + PARTITION_TMP, + PARTITION_VAR, + _PARTITION_DESIGNATOR_MAX, + _PARTITION_DESIGNATOR_INVALID = -EINVAL, +} PartitionDesignator; + +bool partition_designator_is_versioned(PartitionDesignator d); + +PartitionDesignator partition_verity_of(PartitionDesignator p); +PartitionDesignator partition_verity_sig_of(PartitionDesignator p); +PartitionDesignator partition_verity_to_data(PartitionDesignator d); +PartitionDesignator partition_verity_sig_to_data(PartitionDesignator d); + +const char* partition_designator_to_string(PartitionDesignator d) _const_; +PartitionDesignator partition_designator_from_string(const char *name) _pure_; + +const char *gpt_partition_type_uuid_to_string(sd_id128_t id); +const char *gpt_partition_type_uuid_to_string_harder( + sd_id128_t id, + char buffer[static SD_ID128_UUID_STRING_MAX]); + +#define GPT_PARTITION_TYPE_UUID_TO_STRING_HARDER(id) \ + gpt_partition_type_uuid_to_string_harder((id), (char[SD_ID128_UUID_STRING_MAX]) {}) + +Architecture gpt_partition_type_uuid_to_arch(sd_id128_t id); + +typedef struct GptPartitionType { + sd_id128_t uuid; + const char *name; + Architecture arch; + PartitionDesignator designator; +} GptPartitionType; + +extern const GptPartitionType gpt_partition_type_table[]; + +int gpt_partition_label_valid(const char *s); + +GptPartitionType gpt_partition_type_from_uuid(sd_id128_t id); +int gpt_partition_type_from_string(const char *s, GptPartitionType *ret); + +GptPartitionType gpt_partition_type_override_architecture(GptPartitionType type, Architecture arch); + +const char *gpt_partition_type_mountpoint_nulstr(GptPartitionType type); + +bool gpt_partition_type_knows_read_only(GptPartitionType type); +bool gpt_partition_type_knows_growfs(GptPartitionType type); +bool gpt_partition_type_knows_no_auto(GptPartitionType type); + +typedef struct { + uint8_t partition_type_guid[16]; + uint8_t unique_partition_guid[16]; + le64_t starting_lba; + le64_t ending_lba; + le64_t attributes; + char16_t partition_name[36]; +} _packed_ GptPartitionEntry; + +typedef struct { + char signature[8]; + le32_t revision; + le32_t header_size; + le32_t crc32; + le32_t reserved; + le64_t my_lba; + le64_t alternate_lba; + le64_t first_usable_lba; + le64_t last_usable_lba; + uint8_t disk_guid[16]; + le64_t partition_entry_lba; + le32_t number_of_partition_entries; + le32_t size_of_partition_entry; + le32_t partition_entry_array_crc32; +} _packed_ GptHeader; + +bool gpt_header_has_signature(const GptHeader *p); -- cgit v1.2.3