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include/tpm-v1.h
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/* SPDX-License-Identifier: GPL-2.0+ */ |
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/* |
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* Copyright (c) 2013 The Chromium OS Authors. |
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* Coypright (c) 2013 Guntermann & Drunck GmbH |
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*/ |
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#ifndef __TPM_V1_H #define __TPM_V1_H |
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#include <tpm-common.h> |
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/* Useful constants */ enum { TPM_REQUEST_HEADER_LENGTH = 10, TPM_RESPONSE_HEADER_LENGTH = 10, PCR_DIGEST_LENGTH = 20, DIGEST_LENGTH = 20, TPM_REQUEST_AUTH_LENGTH = 45, TPM_RESPONSE_AUTH_LENGTH = 41, /* some max lengths, valid for RSA keys <= 2048 bits */ TPM_KEY12_MAX_LENGTH = 618, TPM_PUBKEY_MAX_LENGTH = 288, |
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}; |
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enum tpm_startup_type { TPM_ST_CLEAR = 0x0001, TPM_ST_STATE = 0x0002, TPM_ST_DEACTIVATED = 0x0003, }; enum tpm_physical_presence { TPM_PHYSICAL_PRESENCE_HW_DISABLE = 0x0200, TPM_PHYSICAL_PRESENCE_CMD_DISABLE = 0x0100, TPM_PHYSICAL_PRESENCE_LIFETIME_LOCK = 0x0080, TPM_PHYSICAL_PRESENCE_HW_ENABLE = 0x0040, TPM_PHYSICAL_PRESENCE_CMD_ENABLE = 0x0020, TPM_PHYSICAL_PRESENCE_NOTPRESENT = 0x0010, TPM_PHYSICAL_PRESENCE_PRESENT = 0x0008, TPM_PHYSICAL_PRESENCE_LOCK = 0x0004, }; enum tpm_nv_index { TPM_NV_INDEX_LOCK = 0xffffffff, TPM_NV_INDEX_0 = 0x00000000, TPM_NV_INDEX_DIR = 0x10000001, }; |
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enum tpm_resource_type { TPM_RT_KEY = 0x00000001, TPM_RT_AUTH = 0x00000002, TPM_RT_HASH = 0x00000003, TPM_RT_TRANS = 0x00000004, TPM_RT_CONTEXT = 0x00000005, TPM_RT_COUNTER = 0x00000006, TPM_RT_DELEGATE = 0x00000007, TPM_RT_DAA_TPM = 0x00000008, TPM_RT_DAA_V0 = 0x00000009, TPM_RT_DAA_V1 = 0x0000000A, }; enum tpm_capability_areas { TPM_CAP_ORD = 0x00000001, TPM_CAP_ALG = 0x00000002, TPM_CAP_PID = 0x00000003, TPM_CAP_FLAG = 0x00000004, TPM_CAP_PROPERTY = 0x00000005, TPM_CAP_VERSION = 0x00000006, TPM_CAP_KEY_HANDLE = 0x00000007, TPM_CAP_CHECK_LOADED = 0x00000008, TPM_CAP_SYM_MODE = 0x00000009, TPM_CAP_KEY_STATUS = 0x0000000C, TPM_CAP_NV_LIST = 0x0000000D, TPM_CAP_MFR = 0x00000010, TPM_CAP_NV_INDEX = 0x00000011, TPM_CAP_TRANS_ALG = 0x00000012, TPM_CAP_HANDLE = 0x00000014, TPM_CAP_TRANS_ES = 0x00000015, TPM_CAP_AUTH_ENCRYPT = 0x00000017, TPM_CAP_SELECT_SIZE = 0x00000018, TPM_CAP_DA_LOGIC = 0x00000019, TPM_CAP_VERSION_VAL = 0x0000001A, }; |
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enum tmp_cap_flag { TPM_CAP_FLAG_PERMANENT = 0x108, }; #define TPM_TAG_PERMANENT_FLAGS 0x001f |
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#define TPM_NV_PER_GLOBALLOCK BIT(15) #define TPM_NV_PER_PPREAD BIT(16) #define TPM_NV_PER_PPWRITE BIT(0) #define TPM_NV_PER_READ_STCLEAR BIT(31) #define TPM_NV_PER_WRITE_STCLEAR BIT(14) #define TPM_NV_PER_WRITEDEFINE BIT(13) #define TPM_NV_PER_WRITEALL BIT(12) |
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enum { TPM_PUBEK_SIZE = 256, }; |
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enum { TPM_CMD_EXTEND = 0x14, TPM_CMD_GET_CAPABILITY = 0x65, TPM_CMD_NV_DEFINE_SPACE = 0xcc, TPM_CMD_NV_WRITE_VALUE = 0xcd, TPM_CMD_NV_READ_VALUE = 0xcf, }; |
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/** |
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* TPM return codes as defined in the TCG Main specification * (TPM Main Part 2 Structures; Specification version 1.2) */ enum tpm_return_code { TPM_BASE = 0x00000000, TPM_NON_FATAL = 0x00000800, TPM_SUCCESS = TPM_BASE, /* TPM-defined fatal error codes */ TPM_AUTHFAIL = TPM_BASE + 1, TPM_BADINDEX = TPM_BASE + 2, TPM_BAD_PARAMETER = TPM_BASE + 3, TPM_AUDITFAILURE = TPM_BASE + 4, TPM_CLEAR_DISABLED = TPM_BASE + 5, TPM_DEACTIVATED = TPM_BASE + 6, TPM_DISABLED = TPM_BASE + 7, TPM_DISABLED_CMD = TPM_BASE + 8, TPM_FAIL = TPM_BASE + 9, TPM_BAD_ORDINAL = TPM_BASE + 10, TPM_INSTALL_DISABLED = TPM_BASE + 11, TPM_INVALID_KEYHANDLE = TPM_BASE + 12, TPM_KEYNOTFOUND = TPM_BASE + 13, TPM_INAPPROPRIATE_ENC = TPM_BASE + 14, TPM_MIGRATE_FAIL = TPM_BASE + 15, TPM_INVALID_PCR_INFO = TPM_BASE + 16, TPM_NOSPACE = TPM_BASE + 17, TPM_NOSRK = TPM_BASE + 18, TPM_NOTSEALED_BLOB = TPM_BASE + 19, TPM_OWNER_SET = TPM_BASE + 20, TPM_RESOURCES = TPM_BASE + 21, TPM_SHORTRANDOM = TPM_BASE + 22, TPM_SIZE = TPM_BASE + 23, TPM_WRONGPCRVAL = TPM_BASE + 24, TPM_BAD_PARAM_SIZE = TPM_BASE + 25, TPM_SHA_THREAD = TPM_BASE + 26, TPM_SHA_ERROR = TPM_BASE + 27, TPM_FAILEDSELFTEST = TPM_BASE + 28, TPM_AUTH2FAIL = TPM_BASE + 29, TPM_BADTAG = TPM_BASE + 30, TPM_IOERROR = TPM_BASE + 31, TPM_ENCRYPT_ERROR = TPM_BASE + 32, TPM_DECRYPT_ERROR = TPM_BASE + 33, TPM_INVALID_AUTHHANDLE = TPM_BASE + 34, TPM_NO_ENDORSEMENT = TPM_BASE + 35, TPM_INVALID_KEYUSAGE = TPM_BASE + 36, TPM_WRONG_ENTITYTYPE = TPM_BASE + 37, TPM_INVALID_POSTINIT = TPM_BASE + 38, TPM_INAPPROPRIATE_SIG = TPM_BASE + 39, TPM_BAD_KEY_PROPERTY = TPM_BASE + 40, TPM_BAD_MIGRATION = TPM_BASE + 41, TPM_BAD_SCHEME = TPM_BASE + 42, TPM_BAD_DATASIZE = TPM_BASE + 43, TPM_BAD_MODE = TPM_BASE + 44, TPM_BAD_PRESENCE = TPM_BASE + 45, TPM_BAD_VERSION = TPM_BASE + 46, TPM_NO_WRAP_TRANSPORT = TPM_BASE + 47, TPM_AUDITFAIL_UNSUCCESSFUL = TPM_BASE + 48, TPM_AUDITFAIL_SUCCESSFUL = TPM_BASE + 49, TPM_NOTRESETABLE = TPM_BASE + 50, TPM_NOTLOCAL = TPM_BASE + 51, TPM_BAD_TYPE = TPM_BASE + 52, TPM_INVALID_RESOURCE = TPM_BASE + 53, TPM_NOTFIPS = TPM_BASE + 54, TPM_INVALID_FAMILY = TPM_BASE + 55, TPM_NO_NV_PERMISSION = TPM_BASE + 56, TPM_REQUIRES_SIGN = TPM_BASE + 57, TPM_KEY_NOTSUPPORTED = TPM_BASE + 58, TPM_AUTH_CONFLICT = TPM_BASE + 59, TPM_AREA_LOCKED = TPM_BASE + 60, TPM_BAD_LOCALITY = TPM_BASE + 61, TPM_READ_ONLY = TPM_BASE + 62, TPM_PER_NOWRITE = TPM_BASE + 63, TPM_FAMILY_COUNT = TPM_BASE + 64, TPM_WRITE_LOCKED = TPM_BASE + 65, TPM_BAD_ATTRIBUTES = TPM_BASE + 66, TPM_INVALID_STRUCTURE = TPM_BASE + 67, TPM_KEY_OWNER_CONTROL = TPM_BASE + 68, TPM_BAD_COUNTER = TPM_BASE + 69, TPM_NOT_FULLWRITE = TPM_BASE + 70, TPM_CONTEXT_GAP = TPM_BASE + 71, TPM_MAXNVWRITES = TPM_BASE + 72, TPM_NOOPERATOR = TPM_BASE + 73, TPM_RESOURCEMISSING = TPM_BASE + 74, TPM_DELEGATE_LOCK = TPM_BASE + 75, TPM_DELEGATE_FAMILY = TPM_BASE + 76, TPM_DELEGATE_ADMIN = TPM_BASE + 77, TPM_TRANSPORT_NOTEXCLUSIVE = TPM_BASE + 78, TPM_OWNER_CONTROL = TPM_BASE + 79, TPM_DAA_RESOURCES = TPM_BASE + 80, TPM_DAA_INPUT_DATA0 = TPM_BASE + 81, TPM_DAA_INPUT_DATA1 = TPM_BASE + 82, TPM_DAA_ISSUER_SETTINGS = TPM_BASE + 83, TPM_DAA_TPM_SETTINGS = TPM_BASE + 84, TPM_DAA_STAGE = TPM_BASE + 85, TPM_DAA_ISSUER_VALIDITY = TPM_BASE + 86, TPM_DAA_WRONG_W = TPM_BASE + 87, TPM_BAD_HANDLE = TPM_BASE + 88, TPM_BAD_DELEGATE = TPM_BASE + 89, TPM_BADCONTEXT = TPM_BASE + 90, TPM_TOOMANYCONTEXTS = TPM_BASE + 91, TPM_MA_TICKET_SIGNATURE = TPM_BASE + 92, TPM_MA_DESTINATION = TPM_BASE + 93, TPM_MA_SOURCE = TPM_BASE + 94, TPM_MA_AUTHORITY = TPM_BASE + 95, TPM_PERMANENTEK = TPM_BASE + 97, TPM_BAD_SIGNATURE = TPM_BASE + 98, TPM_NOCONTEXTSPACE = TPM_BASE + 99, /* TPM-defined non-fatal errors */ TPM_RETRY = TPM_BASE + TPM_NON_FATAL, TPM_NEEDS_SELFTEST = TPM_BASE + TPM_NON_FATAL + 1, TPM_DOING_SELFTEST = TPM_BASE + TPM_NON_FATAL + 2, TPM_DEFEND_LOCK_RUNNING = TPM_BASE + TPM_NON_FATAL + 3, }; |
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struct tpm_permanent_flags { __be16 tag; u8 disable; u8 ownership; u8 deactivated; u8 read_pubek; u8 disable_owner_clear; u8 allow_maintenance; u8 physical_presence_lifetime_lock; u8 physical_presence_hw_enable; u8 physical_presence_cmd_enable; u8 cekp_used; u8 tpm_post; u8 tpm_post_lock; u8 fips; u8 operator; u8 enable_revoke_ek; u8 nv_locked; u8 read_srk_pub; u8 tpm_established; u8 maintenance_done; u8 disable_full_da_logic_info; } __packed; |
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#define TPM_SHA1_160_HASH_LEN 0x14 struct __packed tpm_composite_hash { u8 digest[TPM_SHA1_160_HASH_LEN]; }; struct __packed tpm_pcr_selection { __be16 size_of_select; u8 pcr_select[3]; /* matches vboot's struct */ }; struct __packed tpm_pcr_info_short { struct tpm_pcr_selection pcr_selection; u8 locality_at_release; struct tpm_composite_hash digest_at_release; }; struct __packed tpm_nv_attributes { __be16 tag; __be32 attributes; }; struct __packed tpm_nv_data_public { __be16 tag; __be32 nv_index; struct tpm_pcr_info_short pcr_info_read; struct tpm_pcr_info_short pcr_info_write; struct tpm_nv_attributes permission; u8 read_st_clear; u8 write_st_clear; u8 write_define; __be32 data_size; }; |
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/** * Issue a TPM_Startup command. |
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* |
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* @param dev TPM device |
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* @param mode TPM startup mode * @return return code of the operation */ |
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u32 tpm_startup(struct udevice *dev, enum tpm_startup_type mode); |
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/** * Issue a TPM_SelfTestFull command. |
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* |
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* @param dev TPM device |
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* @return return code of the operation |
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*/ |
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u32 tpm_self_test_full(struct udevice *dev); |
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/** * Issue a TPM_ContinueSelfTest command. |
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* |
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* @param dev TPM device |
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* @return return code of the operation |
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*/ |
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u32 tpm_continue_self_test(struct udevice *dev); |
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/** * Issue a TPM_NV_DefineSpace command. The implementation is limited * to specify TPM_NV_ATTRIBUTES and size of the area. The area index * could be one of the special value listed in enum tpm_nv_index. |
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* |
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* @param dev TPM device |
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* @param index index of the area * @param perm TPM_NV_ATTRIBUTES of the area * @param size size of the area * @return return code of the operation */ |
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u32 tpm_nv_define_space(struct udevice *dev, u32 index, u32 perm, u32 size); |
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/** * Issue a TPM_NV_ReadValue command. This implementation is limited * to read the area from offset 0. The area index could be one of * the special value listed in enum tpm_nv_index. * |
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* @param dev TPM device |
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* @param index index of the area * @param data output buffer of the area contents * @param count size of output buffer * @return return code of the operation */ |
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u32 tpm_nv_read_value(struct udevice *dev, u32 index, void *data, u32 count); |
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/** * Issue a TPM_NV_WriteValue command. This implementation is limited * to write the area from offset 0. The area index could be one of * the special value listed in enum tpm_nv_index. * |
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* @param dev TPM device |
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* @param index index of the area * @param data input buffer to be wrote to the area * @param length length of data bytes of input buffer * @return return code of the operation */ |
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u32 tpm_nv_write_value(struct udevice *dev, u32 index, const void *data, u32 length); |
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/** * Issue a TPM_Extend command. * |
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* @param dev TPM device |
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* @param index index of the PCR * @param in_digest 160-bit value representing the event to be * recorded * @param out_digest 160-bit PCR value after execution of the * command * @return return code of the operation */ |
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u32 tpm_extend(struct udevice *dev, u32 index, const void *in_digest, void *out_digest); |
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/** * Issue a TPM_PCRRead command. |
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* |
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* @param dev TPM device |
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* @param index index of the PCR * @param data output buffer for contents of the named PCR * @param count size of output buffer * @return return code of the operation */ |
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u32 tpm_pcr_read(struct udevice *dev, u32 index, void *data, size_t count); |
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/** * Issue a TSC_PhysicalPresence command. TPM physical presence flag * is bit-wise OR'ed of flags listed in enum tpm_physical_presence. * |
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* @param dev TPM device |
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* @param presence TPM physical presence flag * @return return code of the operation */ |
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u32 tpm_tsc_physical_presence(struct udevice *dev, u16 presence); |
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/** * Issue a TPM_ReadPubek command. * |
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* @param dev TPM device |
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* @param data output buffer for the public endorsement key |
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* @param count size of output buffer |
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* @return return code of the operation */ |
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u32 tpm_read_pubek(struct udevice *dev, void *data, size_t count); |
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/** * Issue a TPM_ForceClear command. * |
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* @param dev TPM device |
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* @return return code of the operation */ |
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u32 tpm_force_clear(struct udevice *dev); |
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/** * Issue a TPM_PhysicalEnable command. * |
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* @param dev TPM device |
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* @return return code of the operation */ |
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u32 tpm_physical_enable(struct udevice *dev); |
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/** * Issue a TPM_PhysicalDisable command. * |
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* @param dev TPM device |
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* @return return code of the operation */ |
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u32 tpm_physical_disable(struct udevice *dev); |
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/** * Issue a TPM_PhysicalSetDeactivated command. * |
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* @param dev TPM device |
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* @param state boolean state of the deactivated flag * @return return code of the operation */ |
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u32 tpm_physical_set_deactivated(struct udevice *dev, u8 state); |
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/** * Issue a TPM_GetCapability command. This implementation is limited * to query sub_cap index that is 4-byte wide. |
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* |
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* @param dev TPM device |
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* @param cap_area partition of capabilities * @param sub_cap further definition of capability, which is * limited to be 4-byte wide * @param cap output buffer for capability information |
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* @param count size of output buffer |
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* @return return code of the operation |
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*/ |
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u32 tpm_get_capability(struct udevice *dev, u32 cap_area, u32 sub_cap, void *cap, size_t count); |
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/** |
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* Issue a TPM_FlushSpecific command for a AUTH resource. |
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* |
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* @param dev TPM device |
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* @param auth_handle handle of the auth session * @return return code of the operation */ |
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u32 tpm_terminate_auth_session(struct udevice *dev, u32 auth_handle); |
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/** |
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* Issue a TPM_OIAP command to setup an object independent authorization |
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* session. * Information about the session is stored internally. * If there was already an OIAP session active it is terminated and a new * session is set up. * |
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* @param dev TPM device |
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* @param auth_handle pointer to the (new) auth handle or NULL. * @return return code of the operation */ |
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u32 tpm_oiap(struct udevice *dev, u32 *auth_handle); |
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/** * Ends an active OIAP session. * |
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* @param dev TPM device |
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* @return return code of the operation */ |
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u32 tpm_end_oiap(struct udevice *dev); |
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/** * Issue a TPM_LoadKey2 (Auth1) command using an OIAP session for authenticating * the usage of the parent key. * |
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* @param dev TPM device |
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* @param parent_handle handle of the parent key. * @param key pointer to the key structure (TPM_KEY or TPM_KEY12). * @param key_length size of the key structure * @param parent_key_usage_auth usage auth for the parent key * @param key_handle pointer to the key handle * @return return code of the operation */ |
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u32 tpm_load_key2_oiap(struct udevice *dev, u32 parent_handle, const void *key, size_t key_length, const void *parent_key_usage_auth, u32 *key_handle); |
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/** * Issue a TPM_GetPubKey (Auth1) command using an OIAP session for * authenticating the usage of the key. * |
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* @param dev TPM device |
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* @param key_handle handle of the key * @param usage_auth usage auth for the key * @param pubkey pointer to the pub key buffer; may be NULL if the pubkey * should not be stored. * @param pubkey_len pointer to the pub key buffer len. On entry: the size of * the provided pubkey buffer. On successful exit: the size * of the stored TPM_PUBKEY structure (iff pubkey != NULL). * @return return code of the operation */ |
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u32 tpm_get_pub_key_oiap(struct udevice *dev, u32 key_handle, const void *usage_auth, void *pubkey, |
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size_t *pubkey_len); |
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/** * Get the TPM permanent flags value * |
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* @param dev TPM device |
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* @param pflags Place to put permanent flags * @return return code of the operation */ |
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u32 tpm_get_permanent_flags(struct udevice *dev, struct tpm_permanent_flags *pflags); |
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/** * Get the TPM permissions * |
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* @param dev TPM device |
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* @param perm Returns permissions value * @return return code of the operation */ |
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u32 tpm_get_permissions(struct udevice *dev, u32 index, u32 *perm); |
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/** * Flush a resource with a given handle and type from the TPM * |
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* @param dev TPM device |
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* @param key_handle handle of the resource * @param resource_type type of the resource * @return return code of the operation */ |
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u32 tpm_flush_specific(struct udevice *dev, u32 key_handle, u32 resource_type); |
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#ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1 /** * Search for a key by usage AuthData and the hash of the parent's pub key. * |
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* @param dev TPM device |
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* @param auth Usage auth of the key to search for * @param pubkey_digest SHA1 hash of the pub key structure of the key * @param[out] handle The handle of the key (Non-null iff found) * @return 0 if key was found in TPM; != 0 if not. */ |
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u32 tpm_find_key_sha1(struct udevice *dev, const u8 auth[20], const u8 pubkey_digest[20], u32 *handle); |
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#endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */ |
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/** * Read random bytes from the TPM RNG. The implementation deals with the fact * that the TPM may legally return fewer bytes than requested by retrying * until @p count bytes have been received. * |
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* @param dev TPM device |
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* @param data output buffer for the random bytes * @param count size of output buffer * @return return code of the operation */ |
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u32 tpm_get_random(struct udevice *dev, void *data, u32 count); |
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/** * tpm_finalise_physical_presence() - Finalise physical presence * |
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* @param dev TPM device |
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* @return return code of the operation (0 = success) */ |
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u32 tpm_finalise_physical_presence(struct udevice *dev); |
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/** * tpm_nv_set_locked() - lock the non-volatile space * |
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* @param dev TPM device |
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* @return return code of the operation (0 = success) */ |
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u32 tpm_nv_set_locked(struct udevice *dev); |
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/** * tpm_set_global_lock() - set the global lock * |
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* @param dev TPM device |
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* @return return code of the operation (0 = success) */ |
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u32 tpm_set_global_lock(struct udevice *dev); |
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/** * tpm_resume() - start up the TPM from resume (after suspend) * |
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* @param dev TPM device |
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* @return return code of the operation (0 = success) */ |
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u32 tpm_resume(struct udevice *dev); |
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#endif /* __TPM_V1_H */ |