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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 02:25:50 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 02:25:50 +0000 |
commit | 19f4f86bfed21c5326ed2acebe1163f3a83e832b (patch) | |
tree | d59b9989ce55ed23693e80974d94c856f1c2c8b1 /src/shared/efivars.h | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 241.upstream/241upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/shared/efivars.h')
-rw-r--r-- | src/shared/efivars.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/shared/efivars.h b/src/shared/efivars.h new file mode 100644 index 0000000..92670c8 --- /dev/null +++ b/src/shared/efivars.h @@ -0,0 +1,141 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +#pragma once + +#if ! ENABLE_EFI +#include <errno.h> +#endif +#include <stdbool.h> +#include <stddef.h> +#include <stdint.h> + +#include "sd-id128.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_VARIABLE_NON_VOLATILE 0x0000000000000001 +#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002 +#define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004 + +#define EFI_LOADER_FEATURE_CONFIG_TIMEOUT (UINT64_C(1) << 0) +#define EFI_LOADER_FEATURE_CONFIG_TIMEOUT_ONE_SHOT (UINT64_C(1) << 1) +#define EFI_LOADER_FEATURE_ENTRY_DEFAULT (UINT64_C(1) << 2) +#define EFI_LOADER_FEATURE_ENTRY_ONESHOT (UINT64_C(1) << 3) +#define EFI_LOADER_FEATURE_BOOT_COUNTING (UINT64_C(1) << 4) + +#if ENABLE_EFI + +bool is_efi_boot(void); +bool is_efi_secure_boot(void); +bool is_efi_secure_boot_setup_mode(void); +int efi_reboot_to_firmware_supported(void); +int efi_get_reboot_to_firmware(void); +int efi_set_reboot_to_firmware(bool value); + +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); + +int efi_get_boot_option(uint16_t nr, char **title, sd_id128_t *part_uuid, char **path, bool *active); +int efi_add_boot_option(uint16_t id, const char *title, uint32_t part, uint64_t pstart, uint64_t psize, sd_id128_t part_uuid, const char *path); +int efi_remove_boot_option(uint16_t id); +int efi_get_boot_order(uint16_t **order); +int efi_set_boot_order(uint16_t *order, size_t n); +int efi_get_boot_options(uint16_t **options); + +int efi_loader_get_device_part_uuid(sd_id128_t *u); +int efi_loader_get_boot_usec(usec_t *firmware, usec_t *loader); + +int efi_loader_get_entries(char ***ret); + +bool efi_loader_entry_name_valid(const char *s); + +int efi_loader_get_features(uint64_t *ret); + +#else + +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 efi_reboot_to_firmware_supported(void) { + return -EOPNOTSUPP; +} + +static inline int efi_get_reboot_to_firmware(void) { + return -EOPNOTSUPP; +} + +static inline int efi_set_reboot_to_firmware(bool value) { + return -EOPNOTSUPP; +} + +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 int efi_get_boot_option(uint16_t nr, char **title, sd_id128_t *part_uuid, char **path, bool *active) { + return -EOPNOTSUPP; +} + +static inline int efi_add_boot_option(uint16_t id, const char *title, uint32_t part, uint64_t pstart, uint64_t psize, sd_id128_t part_uuid, const char *path) { + return -EOPNOTSUPP; +} + +static inline int efi_remove_boot_option(uint16_t id) { + return -EOPNOTSUPP; +} + +static inline int efi_get_boot_order(uint16_t **order) { + return -EOPNOTSUPP; +} + +static inline int efi_set_boot_order(uint16_t *order, size_t n) { + return -EOPNOTSUPP; +} + +static inline int efi_get_boot_options(uint16_t **options) { + return -EOPNOTSUPP; +} + +static inline int efi_loader_get_device_part_uuid(sd_id128_t *u) { + return -EOPNOTSUPP; +} + +static inline int efi_loader_get_boot_usec(usec_t *firmware, usec_t *loader) { + return -EOPNOTSUPP; +} + +static inline int efi_loader_get_entries(char ***ret) { + return -EOPNOTSUPP; +} + +static inline int efi_loader_get_features(uint64_t *ret) { + return -EOPNOTSUPP; +} + +#endif + +char *efi_tilt_backslashes(char *s); |