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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "gpt.h"
#include "string-util.h"
#include "utf8.h"
/* Gently push people towards defining GPT type UUIDs for all architectures we know */
#if !defined(GPT_ROOT_NATIVE) || \
!defined(GPT_ROOT_NATIVE_VERITY) || \
!defined(GPT_ROOT_NATIVE_VERITY_SIG) || \
!defined(GPT_USR_NATIVE) || \
!defined(GPT_USR_NATIVE_VERITY) || \
!defined(GPT_USR_NATIVE_VERITY_SIG)
#pragma message "Please define GPT partition types for your architecture."
#endif
#define _GPT_ARCH_SEXTET(arch, name) \
{ GPT_ROOT_##arch, "root-" name }, \
{ GPT_ROOT_##arch##_VERITY, "root-" name "-verity" }, \
{ GPT_ROOT_##arch##_VERITY_SIG, "root-" name "-verity-sig" }, \
{ GPT_USR_##arch, "usr-" name }, \
{ GPT_USR_##arch##_VERITY, "usr-" name "-verity" }, \
{ GPT_USR_##arch##_VERITY_SIG, "usr-" name "-verity-sig" }
const GptPartitionType gpt_partition_type_table[] = {
_GPT_ARCH_SEXTET(ARM, "arm"),
_GPT_ARCH_SEXTET(ARM_64, "arm64"),
_GPT_ARCH_SEXTET(IA64, "ia64"),
_GPT_ARCH_SEXTET(LOONGARCH64, "loongarch64"),
_GPT_ARCH_SEXTET(RISCV32, "riscv32"),
_GPT_ARCH_SEXTET(RISCV64, "riscv64"),
_GPT_ARCH_SEXTET(X86, "x86"),
_GPT_ARCH_SEXTET(X86_64, "x86-64"),
#ifdef GPT_ROOT_NATIVE
{ GPT_ROOT_NATIVE, "root" },
{ GPT_ROOT_NATIVE_VERITY, "root-verity" },
{ GPT_ROOT_NATIVE_VERITY_SIG, "root-verity-sig" },
{ GPT_USR_NATIVE, "usr" },
{ GPT_USR_NATIVE_VERITY, "usr-verity" },
{ GPT_USR_NATIVE_VERITY_SIG, "usr-verity-sig" },
#endif
#ifdef GPT_ROOT_SECONDARY
_GPT_ARCH_SEXTET(SECONDARY, "secondary"),
#endif
{ GPT_ESP, "esp" },
{ GPT_XBOOTLDR, "xbootldr" },
{ GPT_SWAP, "swap" },
{ GPT_HOME, "home" },
{ GPT_SRV, "srv" },
{ GPT_VAR, "var" },
{ GPT_TMP, "tmp" },
{ GPT_USER_HOME, "user-home" },
{ GPT_LINUX_GENERIC, "linux-generic" },
{}
};
#define _GPT_ALL_ARCHES(type,suffix) \
GPT_##type##_ARM##suffix, \
GPT_##type##_ARM_64##suffix, \
GPT_##type##_IA64##suffix, \
GPT_##type##_LOONGARCH64##suffix, \
GPT_##type##_RISCV32##suffix, \
GPT_##type##_RISCV64##suffix, \
GPT_##type##_X86##suffix, \
GPT_##type##_X86_64##suffix
const char *gpt_partition_type_uuid_to_string(sd_id128_t id) {
for (size_t i = 0; i < ELEMENTSOF(gpt_partition_type_table) - 1; i++)
if (sd_id128_equal(id, gpt_partition_type_table[i].uuid))
return gpt_partition_type_table[i].name;
return NULL;
}
const char *gpt_partition_type_uuid_to_string_harder(
sd_id128_t id,
char buffer[static ID128_UUID_STRING_MAX]) {
const char *s;
assert(buffer);
s = gpt_partition_type_uuid_to_string(id);
if (s)
return s;
return id128_to_uuid_string(id, buffer);
}
int gpt_partition_type_uuid_from_string(const char *s, sd_id128_t *ret) {
assert(s);
for (size_t i = 0; i < ELEMENTSOF(gpt_partition_type_table) - 1; i++)
if (streq(s, gpt_partition_type_table[i].name)) {
if (ret)
*ret = gpt_partition_type_table[i].uuid;
return 0;
}
return sd_id128_from_string(s, ret);
}
int gpt_partition_label_valid(const char *s) {
_cleanup_free_ char16_t *recoded = NULL;
recoded = utf8_to_utf16(s, strlen(s));
if (!recoded)
return -ENOMEM;
return char16_strlen(recoded) <= GPT_LABEL_MAX;
}
bool gpt_partition_type_is_root(sd_id128_t id) {
return sd_id128_in_set(id, _GPT_ALL_ARCHES(ROOT,));
}
bool gpt_partition_type_is_root_verity(sd_id128_t id) {
return sd_id128_in_set(id, _GPT_ALL_ARCHES(ROOT, _VERITY));
}
bool gpt_partition_type_is_usr(sd_id128_t id) {
return sd_id128_in_set(id, _GPT_ALL_ARCHES(USR,));
}
bool gpt_partition_type_is_usr_verity(sd_id128_t id) {
return sd_id128_in_set(id, _GPT_ALL_ARCHES(USR, _VERITY));
}
bool gpt_partition_type_knows_read_only(sd_id128_t id) {
return gpt_partition_type_is_root(id) ||
gpt_partition_type_is_usr(id) ||
sd_id128_in_set(id,
GPT_HOME,
GPT_SRV,
GPT_VAR,
GPT_TMP,
GPT_XBOOTLDR) ||
gpt_partition_type_is_root_verity(id) || /* pretty much implied, but let's set the bit to make things really clear */
gpt_partition_type_is_usr_verity(id); /* ditto */
}
bool gpt_partition_type_knows_growfs(sd_id128_t id) {
return gpt_partition_type_is_root(id) ||
gpt_partition_type_is_usr(id) ||
sd_id128_in_set(id,
GPT_HOME,
GPT_SRV,
GPT_VAR,
GPT_TMP,
GPT_XBOOTLDR);
}
bool gpt_partition_type_knows_no_auto(sd_id128_t id) {
return gpt_partition_type_is_root(id) ||
gpt_partition_type_is_root_verity(id) ||
gpt_partition_type_is_usr(id) ||
gpt_partition_type_is_usr_verity(id) ||
sd_id128_in_set(id,
GPT_HOME,
GPT_SRV,
GPT_VAR,
GPT_TMP,
GPT_XBOOTLDR,
GPT_SWAP);
}
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