| /* SPDX-License-Identifier: BSD-3-Clause */ |
| |
| #ifndef TSS1_H_ |
| #define TSS1_H_ |
| |
| #include <types.h> |
| #include <vb2_sha.h> |
| |
| #include <security/tpm/tss/tcg-1.2/tss_structures.h> |
| #include <security/tpm/tss_errors.h> |
| |
| /* |
| * TPM1.2-specific |
| * |
| * Some operations don't have counterparts in standard and are directly exposed |
| * here. |
| * |
| * Other operations are applicable to both TPM versions and have wrappers which |
| * pick the implementation based on version determined during initialization via |
| * tlcl_lib_init(). |
| */ |
| |
| /** |
| * Define a space with permission [perm]. [index] is the index for the space, |
| * [size] the usable data size. The TPM error code is returned. |
| */ |
| tpm_result_t tlcl1_define_space(uint32_t index, uint32_t perm, uint32_t size); |
| |
| /** |
| * Issue a PhysicalEnable. The TPM error code is returned. |
| */ |
| tpm_result_t tlcl1_set_enable(void); |
| |
| /** |
| * Issue a SetDeactivated. Pass 0 to activate. Returns result code. |
| */ |
| tpm_result_t tlcl1_set_deactivated(uint8_t flag); |
| |
| /** |
| * Get flags of interest. Pointers for flags you aren't interested in may |
| * be NULL. The TPM error code is returned. |
| */ |
| tpm_result_t tlcl1_get_flags(uint8_t *disable, uint8_t *deactivated, uint8_t *nvlocked); |
| |
| /** |
| * Perform a raw TPM request/response transaction. |
| */ |
| tpm_result_t tlcl1_send_receive(const uint8_t *request, uint8_t *response, int max_length); |
| |
| /** |
| * Run the self test in the background. |
| */ |
| tpm_result_t tlcl1_continue_self_test(void); |
| |
| /** |
| * Set the nvLocked bit. The TPM error code is returned. |
| */ |
| tpm_result_t tlcl1_set_nv_locked(void); |
| |
| /** |
| * Get the entire set of permanent flags. |
| */ |
| tpm_result_t tlcl1_get_permanent_flags(TPM_PERMANENT_FLAGS *pflags); |
| |
| /** |
| * Set the bGlobalLock flag, which only a reboot can clear. The TPM error |
| * code is returned. |
| */ |
| tpm_result_t tlcl1_set_global_lock(void); |
| |
| /** |
| * Get the permission bits for the NVRAM space with |index|. |
| */ |
| tpm_result_t tlcl1_get_permissions(uint32_t index, uint32_t *permissions); |
| |
| /* |
| * Declarations for "private" functions which are dispatched to by tss/tss.c |
| * based on TPM family. |
| */ |
| |
| tpm_result_t tlcl1_save_state(void); |
| tpm_result_t tlcl1_resume(void); |
| tpm_result_t tlcl1_startup(void); |
| tpm_result_t tlcl1_self_test_full(void); |
| tpm_result_t tlcl1_read(uint32_t index, void *data, uint32_t length); |
| tpm_result_t tlcl1_write(uint32_t index, const void *data, uint32_t length); |
| tpm_result_t tlcl1_assert_physical_presence(void); |
| tpm_result_t tlcl1_physical_presence_cmd_enable(void); |
| tpm_result_t tlcl1_finalize_physical_presence(void); |
| tpm_result_t tlcl1_force_clear(void); |
| tpm_result_t tlcl1_extend(int pcr_num, const uint8_t *digest_data, |
| enum vb2_hash_algorithm digest_algo); |
| |
| #endif /* TSS1_H_ */ |