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 2/4] efi_loader: function to get GUID for variable name
Date: Sat, 11 Sep 2021 09:28:30 +0200 [thread overview]
Message-ID: <20210911072832.16991-3-xypron.glpk@gmx.de> (raw)
In-Reply-To: <20210911072832.16991-1-xypron.glpk@gmx.de>
In multiple places we need the default GUID used for variables like
'PK', 'KEK', 'db'. Provide a function for it.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
---
include/efi_variable.h | 8 ++++++++
lib/efi_loader/efi_var_common.c | 9 +++++++++
2 files changed, 17 insertions(+)
diff --git a/include/efi_variable.h b/include/efi_variable.h
index 8f666b2309..03a3ecb235 100644
--- a/include/efi_variable.h
+++ b/include/efi_variable.h
@@ -256,6 +256,14 @@ efi_status_t efi_init_secure_state(void);
enum efi_auth_var_type efi_auth_var_get_type(const u16 *name,
const efi_guid_t *guid);
+/**
+ * efi_auth_var_get_guid() - get the predefined GUID for a variable name
+ *
+ * @name: name of UEFI variable
+ * Return: guid of UEFI variable
+ */
+const efi_guid_t *efi_auth_var_get_guid(const u16 *name);
+
/**
* efi_get_next_variable_name_mem() - Runtime common code across efi variable
* implementations for GetNextVariable()
diff --git a/lib/efi_loader/efi_var_common.c b/lib/efi_loader/efi_var_common.c
index e179932124..3cbb7c96c2 100644
--- a/lib/efi_loader/efi_var_common.c
+++ b/lib/efi_loader/efi_var_common.c
@@ -385,6 +385,15 @@ enum efi_auth_var_type efi_auth_var_get_type(const u16 *name,
return EFI_AUTH_VAR_NONE;
}
+const efi_guid_t *efi_auth_var_get_guid(const u16 *name)
+{
+ for (size_t i = 0; i < ARRAY_SIZE(name_type); ++i) {
+ if (!u16_strcmp(name, name_type[i].name))
+ return name_type[i].guid;
+ }
+ return &efi_global_variable_guid;
+}
+
/**
* efi_get_var() - read value of an EFI variable
*
--
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 ` Heinrich Schuchardt [this message]
2021-09-11 14:13 ` [PATCH 2/4] efi_loader: function to get GUID for variable name Ilias Apalodimas
2021-09-11 14:21 ` Ilias Apalodimas
2021-09-11 7:28 ` [PATCH 3/4] efi_loader: simplify efi_sigstore_parse_sigdb() Heinrich Schuchardt
2021-09-11 14:25 ` 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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