/
niceSOFT
/
util-linux
Обзор
Документация
Войти
/
niceSOFT
/
util-linux
Код
Задачи
Вики
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
libblkid/src/superblocks/ubi.c
63 строки
1 KB
Karel Zak
libblkid: ubi: fix probe return values
23 апр 2026, 15:07
23 апр 2026, 15:07
432ac55
Код
Авторство
О чём код?
/* * Copyright (C) 2017 Rafał Miłecki <rafal@milecki.pl> * * This file may be redistributed under the terms of the * GNU Lesser General Public License. */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <stdint.h> #include "superblocks.h" #include "crc32.h" struct ubi_ec_hdr { uint32_t magic; uint8_t version; uint8_t padding1[3]; uint64_t ec; uint32_t vid_hdr_offset; uint32_t data_offset; uint32_t image_seq; uint8_t padding2[32]; uint32_t hdr_crc; } __attribute__((packed)); static int ubi_verify_csum(blkid_probe pr, const struct ubi_ec_hdr *hdr) { return blkid_probe_verify_csum(pr, ul_crc32(~0LL, (unsigned char *) hdr, sizeof(*hdr) - sizeof(hdr->hdr_crc)), be32_to_cpu(hdr->hdr_crc)); } static int probe_ubi(blkid_probe pr, const struct blkid_idmag *mag) { const struct ubi_ec_hdr *hdr; hdr = blkid_probe_get_sb(pr, mag, struct ubi_ec_hdr); if (!hdr) return errno ? -errno : BLKID_PROBE_NONE; if (!ubi_verify_csum(pr, hdr)) return BLKID_PROBE_NONE; blkid_probe_sprintf_version(pr, "%u", hdr->version); blkid_probe_sprintf_uuid(pr, (unsigned char *)&hdr->image_seq, 4, "%u", be32_to_cpu(hdr->image_seq)); return 0; } const struct blkid_idinfo ubi_idinfo = { .name = "ubi", .usage = BLKID_USAGE_RAID, .probefunc = probe_ubi, .magics = { { .magic = "UBI#", .len = 4 }, { NULL } } };