1 files changed, 80 insertions, 0 deletions
diff --git a/src/basic/efivars.h b/src/basic/efivars.h
new file mode 100644
index 0000000..d310dde
--- /dev/null
+++ b/src/basic/efivars.h
@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#if !ENABLE_EFI
+#  include <errno.h>
+#endif
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include "sd-id128.h"
+
+#include "efi/loader-features.h"
+#include "time-util.h"
+
+#define EFI_VENDOR_LOADER  SD_ID128_MAKE(4a,67,b0,82,0a,4c,41,cf,b6,c7,44,0b,29,bb,8c,4f)
+#define EFI_VENDOR_GLOBAL  SD_ID128_MAKE(8b,e4,df,61,93,ca,11,d2,aa,0d,00,e0,98,03,2b,8c)
+#define EFI_VENDOR_SYSTEMD SD_ID128_MAKE(8c,f2,64,4b,4b,0b,42,8f,93,87,6d,87,60,50,dc,67)
+#define EFI_VARIABLE_NON_VOLATILE       0x0000000000000001
+#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002
+#define EFI_VARIABLE_RUNTIME_ACCESS     0x0000000000000004
+
+#if ENABLE_EFI
+
+char* efi_variable_path(sd_id128_t vendor, const char *name);
+int efi_get_variable(sd_id128_t vendor, const char *name, uint32_t *attribute, void **value, size_t *size);
+int efi_get_variable_string(sd_id128_t vendor, const char *name, char **p);
+int efi_set_variable(sd_id128_t vendor, const char *name, const void *value, size_t size);
+int efi_set_variable_string(sd_id128_t vendor, const char *name, const char *p);
+
+bool is_efi_boot(void);
+bool is_efi_secure_boot(void);
+bool is_efi_secure_boot_setup_mode(void);
+
+int cache_efi_options_variable(void);
+int systemd_efi_options_variable(char **line);
+
+#else
+
+static inline char* efi_variable_path(sd_id128_t vendor, const char *name) {
+        return NULL;
+}
+
+static inline int efi_get_variable(sd_id128_t vendor, const char *name, uint32_t *attribute, void **value, size_t *size) {
+        return -EOPNOTSUPP;
+}
+
+static inline int efi_get_variable_string(sd_id128_t vendor, const char *name, char **p) {
+        return -EOPNOTSUPP;
+}
+
+static inline int efi_set_variable(sd_id128_t vendor, const char *name, const void *value, size_t size) {
+        return -EOPNOTSUPP;
+}
+
+static inline int efi_set_variable_string(sd_id128_t vendor, const char *name, const char *p) {
+        return -EOPNOTSUPP;
+}
+
+static inline bool is_efi_boot(void) {
+        return false;
+}
+
+static inline bool is_efi_secure_boot(void) {
+        return false;
+}
+
+static inline bool is_efi_secure_boot_setup_mode(void) {
+        return false;
+}
+
+static inline int cache_efi_options_variable(void) {
+        return -EOPNOTSUPP;
+}
+
+static inline int systemd_efi_options_variable(char **line) {
+        return -ENODATA;
+}
+
+#endif