src/shared/gpt.c

/* SPDX-License-Identifier: LGPL-2.1+ */

#include "gpt.h"
#include "string-util.h"

const GptPartitionType gpt_partition_type_table[] = {
        { GPT_ROOT_X86,              "root-x86"              },
        { GPT_ROOT_X86_VERITY,       "root-x86-verity"       },
        { GPT_ROOT_X86_64,           "root-x86-64"           },
        { GPT_ROOT_X86_64_VERITY,    "root-x86-64-verity"    },
        { GPT_ROOT_ARM,              "root-arm"              },
        { GPT_ROOT_ARM_VERITY,       "root-arm-verity"       },
        { GPT_ROOT_ARM_64,           "root-arm64"            },
        { GPT_ROOT_ARM_64_VERITY,    "root-arm64-verity"     },
        { GPT_ROOT_IA64,             "root-ia64"             },
        { GPT_ROOT_IA64_VERITY,      "root-ia64-verity"      },
#ifdef GPT_ROOT_NATIVE
        { GPT_ROOT_NATIVE,           "root"                  },
        { GPT_ROOT_NATIVE_VERITY,    "root-verity"           },
#endif
#ifdef GPT_ROOT_SECONDARY
        { GPT_ROOT_SECONDARY,        "root-secondary"        },
        { GPT_ROOT_SECONDARY_VERITY, "root-secondary-verity" },
#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"         },
        {}
};

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);
        assert(ret);

        for (size_t i = 0; i < ELEMENTSOF(gpt_partition_type_table) - 1; i++)
                if (streq(s, gpt_partition_type_table[i].name)) {
                        *ret = gpt_partition_type_table[i].uuid;
                        return 0;
                }

        return sd_id128_from_string(s, ret);
}