From: Heinrich Schuchardt <xypron.glpk@gmx.de>
To: u-boot@lists.denx.de
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>,
AKASHI Takahiro <takahiro.akashi@linaro.org>,
Sughosh Ganu <sughosh.ganu@linaro.org>,
Masahisa Kojima <masahisa.kojima@linaro.org>,
Alexander Graf <agraf@csgraf.de>,
Heinrich Schuchardt <xypron.glpk@gmx.de>
Subject: [PATCH 3/4] efi_loader: simplify efi_sigstore_parse_sigdb()
Date: Sat, 11 Sep 2021 09:28:31 +0200 [thread overview]
Message-ID: <20210911072832.16991-4-xypron.glpk@gmx.de> (raw)
In-Reply-To: <20210911072832.16991-1-xypron.glpk@gmx.de>
Simplify efi_sigstore_parse_sigdb() by using existing functions.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
lib/efi_loader/efi_signature.c | 35 ++++++----------------------------
1 file changed, 6 insertions(+), 29 deletions(-)
diff --git a/lib/efi_loader/efi_signature.c b/lib/efi_loader/efi_signature.c
index bdd09881fc..b741905a99 100644
--- a/lib/efi_loader/efi_signature.c
+++ b/lib/efi_loader/efi_signature.c
@@ -7,6 +7,7 @@
#include <common.h>
#include <charset.h>
#include <efi_loader.h>
+#include <efi_variable.h>
#include <image.h>
#include <hexdump.h>
#include <malloc.h>
@@ -740,44 +741,20 @@ err:
*/
struct efi_signature_store *efi_sigstore_parse_sigdb(u16 *name)
{
- struct efi_signature_store *sigstore = NULL;
const efi_guid_t *vendor;
void *db;
efi_uintn_t db_size;
- efi_status_t ret;
- if (!u16_strcmp(name, L"PK") || !u16_strcmp(name, L"KEK")) {
- vendor = &efi_global_variable_guid;
- } else if (!u16_strcmp(name, L"db") || !u16_strcmp(name, L"dbx")) {
- vendor = &efi_guid_image_security_database;
- } else {
+ vendor = efi_auth_var_get_guid(name);
+ if (!vendor) {
EFI_PRINT("unknown signature database, %ls\n", name);
return NULL;
}
- /* retrieve variable data */
- db_size = 0;
- ret = EFI_CALL(efi_get_variable(name, vendor, NULL, &db_size, NULL));
- if (ret == EFI_NOT_FOUND) {
- EFI_PRINT("variable, %ls, not found\n", name);
- sigstore = calloc(sizeof(*sigstore), 1);
- return sigstore;
- } else if (ret != EFI_BUFFER_TOO_SMALL) {
- EFI_PRINT("Getting variable, %ls, failed\n", name);
- return NULL;
- }
-
- db = malloc(db_size);
+ db = efi_get_var(name, vendor, &db_size);
if (!db) {
- EFI_PRINT("Out of memory\n");
- return NULL;
- }
-
- ret = EFI_CALL(efi_get_variable(name, vendor, NULL, &db_size, db));
- if (ret != EFI_SUCCESS) {
- EFI_PRINT("Getting variable, %ls, failed\n", name);
- free(db);
- return NULL;
+ EFI_PRINT("variable, %ls, not found\n", name);
+ return calloc(sizeof(struct efi_signature_store), 1);
}
return efi_build_signature_store(db, db_size);
--
2.30.2
next prev parent reply other threads:[~2021-09-11 7:29 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-11 7:28 [PATCH 0/4] efi_loader: centralize known vendor GUIDs Heinrich Schuchardt
2021-09-11 7:28 ` [PATCH 1/4] efi_loader: treat UEFI variable name as const Heinrich Schuchardt
2021-09-11 14:10 ` Ilias Apalodimas
2021-09-12 19:19 ` Heinrich Schuchardt
2021-09-11 7:28 ` [PATCH 2/4] efi_loader: function to get GUID for variable name Heinrich Schuchardt
2021-09-11 14:13 ` Ilias Apalodimas
2021-09-11 14:21 ` Ilias Apalodimas
2021-09-11 7:28 ` Heinrich Schuchardt [this message]
2021-09-11 14:25 ` [PATCH 3/4] efi_loader: simplify efi_sigstore_parse_sigdb() Ilias Apalodimas
2021-09-12 19:16 ` Heinrich Schuchardt
2021-09-12 19:23 ` Ilias Apalodimas
2021-10-01 16:42 ` Heinrich Schuchardt
2021-10-01 19:08 ` Ilias Apalodimas
2021-09-11 7:28 ` [PATCH 4/4] efi_loader: simplify tcg2_measure_secure_boot_variable() Heinrich Schuchardt
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