008f0ec078
Finalise the new support for adding secure boot variables by adding this alias. db and dbx have this GUID, all others (PKDefault, KEKDefault, dbDefault, dbxDefault, PK, and KEK) have the "global" GUID. Change-Id: I58a825498d57c0bc04516fe41fe94924bdff2181 Signed-off-by: Benjamin Doron <benjamin.doron@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/88426 Reviewed-by: Sean Rhodes <sean@starlabs.systems> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
96 lines
2.1 KiB
C
96 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "guids.h"
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#include <stdio.h>
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#include <string.h>
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#include <commonlib/bsd/helpers.h>
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#include "udk2017.h"
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#include "utils.h"
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const struct guid_alias_t known_guids[] = {
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{
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"coreboot",
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{
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0xceae4c1d, 0x335b, 0x4685,
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{ 0xa4, 0xa0, 0xfc, 0x4a, 0x94, 0xee, 0xa0, 0x85 }
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},
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},
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{
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"dasharo",
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{
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0xd15b327e, 0xff2d, 0x4fc1,
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{ 0xab, 0xf6, 0xc1, 0x2b, 0xd0, 0x8c, 0x13, 0x59 }
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},
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},
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{
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"global",
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{
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0x8be4df61, 0x93ca, 0x11d2,
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{ 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c }
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},
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},
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{
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"secureboot",
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{
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0xd719b2cb, 0x3d3a, 0x4596,
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{ 0xa3, 0xbc, 0xda, 0xd0, 0x0e, 0x67, 0x65, 0x6f }
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},
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},
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{
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"microsoft",
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{
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0x77fa9abd, 0x0359, 0x4d32,
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{ 0xbd, 0x60, 0x28, 0xf4, 0xe7, 0x8f, 0x78, 0x4b }
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},
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},
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};
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const int known_guid_count = ARRAY_SIZE(known_guids);
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char *format_guid(const EFI_GUID *guid, bool use_alias)
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{
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if (use_alias) {
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for (int i = 0; i < known_guid_count; ++i) {
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const struct guid_alias_t *known_guid = &known_guids[i];
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if (memcmp(&known_guid->guid, guid, sizeof(*guid)) == 0)
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return strdup(known_guid->alias);
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}
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}
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char *str = xmalloc(GUID_LEN + 1);
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snprintf(str, GUID_LEN + 1,
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"%08x-%04x-%04x-%02x%02x%02x%02x%02x%02x%02x%02x",
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guid->Data1, guid->Data2, guid->Data3,
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guid->Data4[0], guid->Data4[1],
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guid->Data4[2], guid->Data4[3],
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guid->Data4[4], guid->Data4[5],
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guid->Data4[6], guid->Data4[7]);
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return str;
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}
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bool parse_guid(const char str[], EFI_GUID *guid)
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{
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for (int i = 0; i < known_guid_count; ++i) {
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const struct guid_alias_t *known_guid = &known_guids[i];
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if (str_eq(known_guid->alias, str)) {
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*guid = known_guid->guid;
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return true;
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}
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}
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if (strlen(str) != GUID_LEN)
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return false;
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int n = sscanf(str,
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"%08x-%04hx-%04hx-"
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"%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx",
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&guid->Data1, &guid->Data2, &guid->Data3,
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&guid->Data4[0], &guid->Data4[1],
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&guid->Data4[2], &guid->Data4[3],
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&guid->Data4[4], &guid->Data4[5],
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&guid->Data4[6], &guid->Data4[7]);
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return n == 11;
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}
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