/src/systemd/src/shared/gpt.h

Source
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

#include "sd-gpt.h" /* IWYU pragma: export */
#include "sd-id128.h"

#include "architecture.h"
#include "shared-forward.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) _const_;

PartitionDesignator partition_verity_hash_of(PartitionDesignator p) _const_;
PartitionDesignator partition_verity_sig_of(PartitionDesignator p) _const_;
PartitionDesignator partition_verity_hash_to_data(PartitionDesignator d) _const_;
PartitionDesignator partition_verity_sig_to_data(PartitionDesignator d) _const_;
PartitionDesignator partition_verity_to_data(PartitionDesignator d) _const_;

static inline bool partition_designator_is_verity_hash(PartitionDesignator d) {
        return partition_verity_hash_to_data(d) >= 0;
}

static inline bool partition_designator_is_verity_sig(PartitionDesignator d) {
        return partition_verity_sig_to_data(d) >= 0;
}

static inline bool partition_designator_is_verity(PartitionDesignator d) {
        return partition_verity_to_data(d) >= 0;
}

DECLARE_STRING_TABLE_LOOKUP(partition_designator, PartitionDesignator);

DECLARE_STRING_TABLE_LOOKUP_TO_STRING(partition_mountpoint, PartitionDesignator);

DECLARE_STRING_TABLE_LOOKUP_TO_STRING(gpt_partition_type_uuid, sd_id128_t);
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) _const_;

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_;

const char* gpt_partition_type_mountpoint_nulstr(GptPartitionType type);

bool gpt_partition_type_knows_read_only(GptPartitionType type) _const_;
bool gpt_partition_type_knows_growfs(GptPartitionType type) _const_;
bool gpt_partition_type_knows_no_auto(GptPartitionType type) _const_;
bool gpt_partition_type_has_filesystem(GptPartitionType type) _const_;

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) _pure_;

Line	Count	Source
1		/* SPDX-License-Identifier: LGPL-2.1-or-later */
2		#pragma once
3
4		#include "sd-gpt.h" /* IWYU pragma: export */
5		#include "sd-id128.h"
6
7		#include "architecture.h"
8		#include "shared-forward.h"
9		#include "sparse-endian.h"
10
11		/* maximum length of gpt label */
12	0	#define GPT_LABEL_MAX 36
13
14		typedef enum PartitionDesignator {
15		PARTITION_ROOT, /* Primary architecture */
16		PARTITION_USR,
17		PARTITION_HOME,
18		PARTITION_SRV,
19		PARTITION_ESP,
20		PARTITION_XBOOTLDR,
21		PARTITION_SWAP,
22		PARTITION_ROOT_VERITY, /* verity data for the PARTITION_ROOT partition */
23		PARTITION_USR_VERITY,
24		PARTITION_ROOT_VERITY_SIG, /* PKCS#7 signature for root hash for the PARTITION_ROOT partition */
25		PARTITION_USR_VERITY_SIG,
26		PARTITION_TMP,
27		PARTITION_VAR,
28		_PARTITION_DESIGNATOR_MAX,
29		_PARTITION_DESIGNATOR_INVALID = -EINVAL,
30		} PartitionDesignator;
31
32		bool partition_designator_is_versioned(PartitionDesignator d) _const_;
33
34		PartitionDesignator partition_verity_hash_of(PartitionDesignator p) _const_;
35		PartitionDesignator partition_verity_sig_of(PartitionDesignator p) _const_;
36		PartitionDesignator partition_verity_hash_to_data(PartitionDesignator d) _const_;
37		PartitionDesignator partition_verity_sig_to_data(PartitionDesignator d) _const_;
38		PartitionDesignator partition_verity_to_data(PartitionDesignator d) _const_;
39
40	0	static inline bool partition_designator_is_verity_hash(PartitionDesignator d) {
41	0	return partition_verity_hash_to_data(d) >= 0;
42	0	} Unexecuted instantiation: udev-builtin-dissect_image.c:partition_designator_is_verity_hash Unexecuted instantiation: systemctl.c:partition_designator_is_verity_hash Unexecuted instantiation: discover-image.c:partition_designator_is_verity_hash Unexecuted instantiation: dissect-image.c:partition_designator_is_verity_hash Unexecuted instantiation: gpt.c:partition_designator_is_verity_hash Unexecuted instantiation: image-policy.c:partition_designator_is_verity_hash Unexecuted instantiation: loop-util.c:partition_designator_is_verity_hash Unexecuted instantiation: mount-util.c:partition_designator_is_verity_hash Unexecuted instantiation: serialize.c:partition_designator_is_verity_hash Unexecuted instantiation: load-fragment-gperf.c:partition_designator_is_verity_hash Unexecuted instantiation: dbus-execute.c:partition_designator_is_verity_hash Unexecuted instantiation: dbus-service.c:partition_designator_is_verity_hash Unexecuted instantiation: dbus-util.c:partition_designator_is_verity_hash Unexecuted instantiation: execute.c:partition_designator_is_verity_hash Unexecuted instantiation: execute-serialize.c:partition_designator_is_verity_hash Unexecuted instantiation: load-fragment.c:partition_designator_is_verity_hash Unexecuted instantiation: namespace.c:partition_designator_is_verity_hash Unexecuted instantiation: service.c:partition_designator_is_verity_hash Unexecuted instantiation: varlink-execute.c:partition_designator_is_verity_hash
43
44	0	static inline bool partition_designator_is_verity_sig(PartitionDesignator d) {
45	0	return partition_verity_sig_to_data(d) >= 0;
46	0	} Unexecuted instantiation: udev-builtin-dissect_image.c:partition_designator_is_verity_sig Unexecuted instantiation: systemctl.c:partition_designator_is_verity_sig Unexecuted instantiation: discover-image.c:partition_designator_is_verity_sig Unexecuted instantiation: dissect-image.c:partition_designator_is_verity_sig Unexecuted instantiation: gpt.c:partition_designator_is_verity_sig Unexecuted instantiation: image-policy.c:partition_designator_is_verity_sig Unexecuted instantiation: loop-util.c:partition_designator_is_verity_sig Unexecuted instantiation: mount-util.c:partition_designator_is_verity_sig Unexecuted instantiation: serialize.c:partition_designator_is_verity_sig Unexecuted instantiation: load-fragment-gperf.c:partition_designator_is_verity_sig Unexecuted instantiation: dbus-execute.c:partition_designator_is_verity_sig Unexecuted instantiation: dbus-service.c:partition_designator_is_verity_sig Unexecuted instantiation: dbus-util.c:partition_designator_is_verity_sig Unexecuted instantiation: execute.c:partition_designator_is_verity_sig Unexecuted instantiation: execute-serialize.c:partition_designator_is_verity_sig Unexecuted instantiation: load-fragment.c:partition_designator_is_verity_sig Unexecuted instantiation: namespace.c:partition_designator_is_verity_sig Unexecuted instantiation: service.c:partition_designator_is_verity_sig Unexecuted instantiation: varlink-execute.c:partition_designator_is_verity_sig
47
48	0	static inline bool partition_designator_is_verity(PartitionDesignator d) {
49	0	return partition_verity_to_data(d) >= 0;
50	0	} Unexecuted instantiation: udev-builtin-dissect_image.c:partition_designator_is_verity Unexecuted instantiation: systemctl.c:partition_designator_is_verity Unexecuted instantiation: discover-image.c:partition_designator_is_verity Unexecuted instantiation: dissect-image.c:partition_designator_is_verity Unexecuted instantiation: gpt.c:partition_designator_is_verity Unexecuted instantiation: image-policy.c:partition_designator_is_verity Unexecuted instantiation: loop-util.c:partition_designator_is_verity Unexecuted instantiation: mount-util.c:partition_designator_is_verity Unexecuted instantiation: serialize.c:partition_designator_is_verity Unexecuted instantiation: load-fragment-gperf.c:partition_designator_is_verity Unexecuted instantiation: dbus-execute.c:partition_designator_is_verity Unexecuted instantiation: dbus-service.c:partition_designator_is_verity Unexecuted instantiation: dbus-util.c:partition_designator_is_verity Unexecuted instantiation: execute.c:partition_designator_is_verity Unexecuted instantiation: execute-serialize.c:partition_designator_is_verity Unexecuted instantiation: load-fragment.c:partition_designator_is_verity Unexecuted instantiation: namespace.c:partition_designator_is_verity Unexecuted instantiation: service.c:partition_designator_is_verity Unexecuted instantiation: varlink-execute.c:partition_designator_is_verity
51
52		DECLARE_STRING_TABLE_LOOKUP(partition_designator, PartitionDesignator);
53
54		DECLARE_STRING_TABLE_LOOKUP_TO_STRING(partition_mountpoint, PartitionDesignator);
55
56		DECLARE_STRING_TABLE_LOOKUP_TO_STRING(gpt_partition_type_uuid, sd_id128_t);
57		const char* gpt_partition_type_uuid_to_string_harder(
58		sd_id128_t id,
59		char buffer[static SD_ID128_UUID_STRING_MAX]);
60
61		#define GPT_PARTITION_TYPE_UUID_TO_STRING_HARDER(id) \
62		gpt_partition_type_uuid_to_string_harder((id), (char[SD_ID128_UUID_STRING_MAX]) {})
63
64		Architecture gpt_partition_type_uuid_to_arch(sd_id128_t id) _const_;
65
66		typedef struct GptPartitionType {
67		sd_id128_t uuid;
68		const char *name;
69		Architecture arch;
70		PartitionDesignator designator;
71		} GptPartitionType;
72
73		extern const GptPartitionType gpt_partition_type_table[];
74
75		int gpt_partition_label_valid(const char *s);
76
77		GptPartitionType gpt_partition_type_from_uuid(sd_id128_t id);
78		int gpt_partition_type_from_string(const char s, GptPartitionType ret);
79
80		GptPartitionType gpt_partition_type_override_architecture(GptPartitionType type, Architecture arch) _const_;
81
82		const char* gpt_partition_type_mountpoint_nulstr(GptPartitionType type);
83
84		bool gpt_partition_type_knows_read_only(GptPartitionType type) _const_;
85		bool gpt_partition_type_knows_growfs(GptPartitionType type) _const_;
86		bool gpt_partition_type_knows_no_auto(GptPartitionType type) _const_;
87		bool gpt_partition_type_has_filesystem(GptPartitionType type) _const_;
88
89		typedef struct {
90		uint8_t partition_type_guid[16];
91		uint8_t unique_partition_guid[16];
92		le64_t starting_lba;
93		le64_t ending_lba;
94		le64_t attributes;
95		char16_t partition_name[36];
96		} _packed_ GptPartitionEntry;
97
98		typedef struct {
99		char signature[8];
100		le32_t revision;
101		le32_t header_size;
102		le32_t crc32;
103		le32_t reserved;
104		le64_t my_lba;
105		le64_t alternate_lba;
106		le64_t first_usable_lba;
107		le64_t last_usable_lba;
108		uint8_t disk_guid[16];
109		le64_t partition_entry_lba;
110		le32_t number_of_partition_entries;
111		le32_t size_of_partition_entry;
112		le32_t partition_entry_array_crc32;
113		} _packed_ GptHeader;
114
115		bool gpt_header_has_signature(const GptHeader *p) _pure_;

Coverage Report

Created: 2026-01-22 06:47