/* packet-tpm20.c * Dissector for TPM20 protocol * Copyright (c) 2018, Intel Corporation * Tadeusz Struk * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "config.h" #include #include #include #include #include typedef struct { uint32_t com_pnum; uint32_t resp_type; uint32_t command; uint32_t num_auths; } tpm_entry; static wmem_tree_t *cmd_tree; static unsigned last_command_pnum; static bool response_size = true; /* sub tree items */ static int proto_tpm20; static int proto_tpm20_header; static int proto_tpm20_resp_header; static int proto_tpm20_hndl_area; static int proto_tpm20_auth_area; static int proto_tpm20_params_area; /* pdu fields */ static int hf_tpm20_platform_cmd; static int hf_tpm20_platform_resp_code; static int hf_tpm20_platform_resp_size; static int hf_tpm20_tag; static int hf_tpm20_size; static int hf_tpm20_cc; static int hf_tpm20_resp_tag; static int hf_tpm20_resp_size; static int hf_tpm20_resp_code; static int hf_tpm20_startup_type; static int hf_tpmi_rh_hierarhy; static int hf_tpmi_rh_provision; static int hf_tpmi_rh_platform; static int hf_tpmi_rh_endorsment; static int hf_tpmi_rh_nv_index; static int hf_tpmi_rh_nv_auth; static int hf_tpmi_rh_hierarhy_auth; static int hf_tpmi_rh_clear; static int hf_tpmi_rh_lockout; static int hf_tpmi_dh_object; static int hf_tpmi_dh_entity; static int hf_tpmi_dh_context; static int hf_tpmi_dh_parent; static int hf_tpmi_dh_pcr; static int hf_tpmi_ht_handle; static int hf_tpmi_sh_auth_session; static int hf_tpmi_rh_act; static int hf_auth_area_size; static int hf_session_nonce_size; static int hf_session_nonce; static int hf_session_attribs_cont; static int hf_session_attribs_auditex; static int hf_session_attribs_auditreset; static int hf_session_attribs_res; static int hf_session_attribs_decrypt; static int hf_session_attribs_encrypt; static int hf_session_attribs_audit; static int hf_session_auth_size; static int hf_session_auth; static int hf_resp_param_size; static int hf_encrypted_secret_size; static int hf_encrypted_secret; static int hf_session_type; static int hf_alg_hash; static int hf_alg_sym; static int hf_alg_sym_keybits; static int hf_alg_sym_mode; static int hf_tpm_priv_size; static int hf_tpm_priv; static int hf_tpm_pub_size; static int hf_tpm_pub; static int hf_tpm_name_size; static int hf_tpm_name; static int hf_tpm_sensitive_crate_size; static int hf_tpm_sensitive_crate; static int hf_tpm_template_size; static int hf_tpm_template; static int hf_tpm_data_size; static int hf_tpm_data; static int hf_tpm_creation_data_size; static int hf_tpm_creation_data; static int hf_tpm_digest_size; static int hf_tpm_digest; static int hf_params; /* sub trees */ static int ett_tpm; static int ett_tpm_header; static int ett_tpm_response_header; static int ett_tpm_handles; static int ett_tpm_auth; static int ett_tpm_params; static int ett_tpm_attrib; static expert_field ei_invalid_tag; static expert_field ei_invalid_auth_size; static expert_field ei_invalid_num_sessions; void proto_register_tpm20(void); void proto_reg_handoff_tpm20(void); static dissector_handle_t tpm20_handle; #define TCP_TPM_PORT_PLATFORM_PORT 2321 #define TCP_TPM_PORT_COMMAND_PORT 2322 #define TCP_TPM_PORTS "2321-2322" #define MAX_HNDL 3 #define MAX_SESSIONS 3 #define TPM_ALG_NULL 0x0010 #define TPM_MIN_AUTH_LEN 9 #define TPM_COMMAND_HEADER_LEN 10 struct num_handles { uint32_t command; uint8_t num_req_handles; int *req_pd[MAX_HNDL]; uint8_t num_resp_handles; int *resp_pd[MAX_HNDL]; }; static struct num_handles tpm_handles_map[] = { { 0x11f, 2, { &hf_tpmi_rh_provision, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0}}, /* CC_NV_UndefineSpaceSpecial */ { 0x120, 2, { &hf_tpmi_rh_provision, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0}}, /* CC_EvictControl */ { 0x121, 1, { &hf_tpmi_rh_hierarhy, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_HierarchyControl */ { 0x122, 2, { &hf_tpmi_rh_provision, &hf_tpmi_rh_nv_index, 0 }, 0, { 0, 0, 0 }}, /* CC_NV_UndefineSpace */ { 0x124, 1, { &hf_tpmi_rh_platform, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_ChangeEPS */ { 0x125, 1, { &hf_tpmi_rh_platform, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_ChangePPS */ { 0x126, 1, { &hf_tpmi_rh_clear, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_Clear */ { 0x127, 1, { &hf_tpmi_rh_clear, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_ClearControl */ { 0x128, 1, { &hf_tpmi_rh_provision, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_ClockSet */ { 0x129, 1, { &hf_tpmi_rh_hierarhy_auth, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_HierarchyChangeAuth */ { 0x12a, 1, { &hf_tpmi_rh_provision, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_NV_DefineSpace */ { 0x12b, 1, { &hf_tpmi_rh_platform, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PCR_Allocate */ { 0x12c, 1, { &hf_tpmi_rh_platform, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PCR_SetAuthPolicy */ { 0x12d, 1, { &hf_tpmi_rh_platform, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PP_Commands */ { 0x12e, 1, { &hf_tpmi_rh_hierarhy_auth, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_SetPrimaryPolicy */ { 0x12f, 2, { &hf_tpmi_rh_platform, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0 }}, /* CC_FieldUpgradeStart */ { 0x130, 1, { &hf_tpmi_rh_platform, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_ClockRateAdjust */ { 0x131, 1, { &hf_tpmi_rh_hierarhy, 0, 0 }, 1, { &hf_tpmi_ht_handle, 0, 0 }}, /* CC_CreatePrimary */ { 0x132, 1, { &hf_tpmi_rh_provision, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_NV_GlobalWriteLock */ { 0x133, 2, { &hf_tpmi_rh_endorsment, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0 }}, /* CC_GetCommandAuditDigest */ { 0x134, 2, { &hf_tpmi_rh_nv_auth, &hf_tpmi_rh_nv_index, 0 }, 0, { 0, 0, 0 }}, /* CC_NV_Increment */ { 0x135, 2, { &hf_tpmi_rh_nv_auth, &hf_tpmi_rh_nv_index, 0 }, 0, { 0, 0, 0 }}, /* CC_NV_SetBits */ { 0x136, 2, { &hf_tpmi_rh_nv_auth, &hf_tpmi_rh_nv_index, 0 }, 0, { 0, 0, 0 }}, /* CC_NV_Extend */ { 0x137, 2, { &hf_tpmi_rh_nv_auth, &hf_tpmi_rh_nv_index, 0 }, 0, { 0, 0, 0 }}, /* CC_NV_Write */ { 0x138, 2, { &hf_tpmi_rh_nv_auth, &hf_tpmi_rh_nv_index, 0 }, 0, { 0, 0, 0 }}, /* CC_NV_WriteLock */ { 0x139, 1, { &hf_tpmi_rh_lockout, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_DictionaryAttackLockReset */ { 0x13a, 1, { &hf_tpmi_rh_lockout, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_DictionaryAttackParameters */ { 0x13b, 1, { &hf_tpmi_rh_nv_index, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_NV_ChangeAuth */ { 0x13c, 1, { &hf_tpmi_dh_pcr, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PCR_Event */ { 0x13d, 1, { &hf_tpmi_dh_pcr, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PCR_Reset */ { 0x13e, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_SequenceComplete */ { 0x13f, 1, { &hf_tpmi_rh_platform, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_SetAlgorithmSet */ { 0x140, 1, { &hf_tpmi_rh_provision, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_SetCommandCodeAuditStatus */ { 0x141, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_FieldUpgradeData */ { 0x142, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_IncrementalSelfTest */ { 0x143, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_SelfTest */ { 0x144, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_Startup */ { 0x145, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_Shutdown */ { 0x146, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_StirRandom */ { 0x147, 2, { &hf_tpmi_dh_object, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0 }}, /* CC_ActivateCredential */ { 0x148, 2, { &hf_tpmi_dh_object, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0 }}, /* CC_Certify */ { 0x149, 3, { &hf_tpmi_rh_nv_auth, &hf_tpmi_rh_nv_index, &hf_tpmi_sh_auth_session}, 0, { 0, 0, 0 }}, /* CC_PolicyNV */ { 0x14a, 2, { &hf_tpmi_dh_object, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0 }}, /* CC_CertifyCreation */ { 0x14b, 2, { &hf_tpmi_dh_object, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0 }}, /* CC_Duplicate */ { 0x14c, 2, { &hf_tpmi_rh_endorsment, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0 }}, /* CC_GetTime */ { 0x14d, 3, { &hf_tpmi_rh_endorsment, &hf_tpmi_dh_object, &hf_tpmi_sh_auth_session }, 0, { 0, 0, 0 }}, /* CC_GetSessionAuditDigest */ { 0x14e, 1, { &hf_tpmi_rh_nv_index, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_NV_Read */ { 0x14f, 2, { &hf_tpmi_rh_nv_auth, &hf_tpmi_rh_nv_index, 0 }, 0, { 0, 0, 0 }}, /* CC_NV_ReadLock */ { 0x150, 2, { &hf_tpmi_dh_object, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0 }}, /* CC_ObjectChangeAuth */ { 0x151, 2, { &hf_tpmi_dh_entity, &hf_tpmi_sh_auth_session, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicySecret */ { 0x152, 2, { &hf_tpmi_dh_object, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0 }}, /* CC_Rewrap */ { 0x153, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_Create */ { 0x154, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_ECDH_ZGen */ { 0x155, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_HMAC */ { 0x156, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_Import */ { 0x157, 1, { &hf_tpmi_dh_object, 0, 0 }, 1, { &hf_tpmi_ht_handle, 0, 0 }}, /* CC_Load */ { 0x158, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_Quote */ { 0x159, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_RSA_Decrypt */ { 0x15b, 1, { &hf_tpmi_dh_object, 0, 0 }, 1, { &hf_tpmi_dh_object, 0, 0 }}, /* CC_HMAC_Start */ { 0x15c, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_SequenceUpdate */ { 0x15d, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_Sign */ { 0x15e, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_Unseal */ { 0x160, 2, { &hf_tpmi_dh_object, &hf_tpmi_sh_auth_session, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicySigned */ { 0x161, 0, { 0, 0, 0 }, 1, { &hf_tpmi_dh_context, 0, 0 }}, /* CC_ContextLoad */ { 0x162, 1, { &hf_tpmi_dh_context, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_ContextSave */ { 0x163, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_ECDH_KeyGen */ { 0x164, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_EncryptDecrypt */ { 0x165, 1, { &hf_tpmi_dh_context, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_FlushContext */ { 0x167, 0, { 0, 0, 0 }, 1, { &hf_tpmi_dh_object, 0, 0 }}, /* CC_LoadExternal */ { 0x168, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_MakeCredential */ { 0x169, 1, { &hf_tpmi_rh_nv_index, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_NV_ReadPublic */ { 0x16a, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyAuthorize */ { 0x16b, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyAuthValue */ { 0x16c, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyCommandCode */ { 0x16d, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyCounterTimer" */ { 0x16e, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyCpHash */ { 0x16f, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyLocality */ { 0x170, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyNameHash */ { 0x171, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyOR */ { 0x172, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyTicket */ { 0x173, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_ReadPublic */ { 0x174, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_RSA_Encrypt */ { 0x176, 2, { &hf_tpmi_dh_object, &hf_tpmi_dh_entity, 0 }, 1, { &hf_tpmi_sh_auth_session, 0, 0 }}, /* CC_StartAuthSession */ { 0x177, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_VerifySignature */ { 0x178, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_ECC_Parameters */ { 0x179, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_FirmwareRead */ { 0x17a, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_GetCapability */ { 0x17b, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_GetRandom */ { 0x17c, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_GetTestResult */ { 0x17d, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_Hash */ { 0x17e, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PCR_Read */ { 0x17f, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyPCR */ { 0x180, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyRestart */ { 0x181, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_ReadClock */ { 0x182, 1, { &hf_tpmi_dh_pcr, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PCR_Extend */ { 0x183, 1, { &hf_tpmi_dh_pcr, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PCR_SetAuthValue */ { 0x184, 3, { &hf_tpmi_dh_object, &hf_tpmi_rh_nv_auth, &hf_tpmi_rh_nv_index }, 0, { 0, 0, 0 }}, /* CC_NV_Certify */ { 0x185, 2, { &hf_tpmi_dh_pcr, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0 }}, /* CC_EventSequenceComplete */ { 0x186, 0, { 0, 0, 0 }, 1, { &hf_tpmi_dh_object, 0, 0 }}, /* CC_HashSequenceStart */ { 0x187, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyPhysicalPresence */ { 0x188, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyDuplicationSelect */ { 0x189, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyGetDigest */ { 0x18a, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_TestParms */ { 0x18b, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_Commit */ { 0x18c, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyPassword */ { 0x18d, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_ZGen_2Phase */ { 0x18e, 0, { 0, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_EC_Ephemeral */ { 0x18f, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyNvWritten */ { 0x190, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_PolicyTemplate */ { 0x191, 1, { &hf_tpmi_rh_hierarhy, 0, 0 }, 1, { &hf_tpmi_dh_parent, 0, 0 }}, /* CC_CreateLoaded */ { 0x192, 3, { &hf_tpmi_rh_nv_auth, &hf_tpmi_rh_nv_index, &hf_tpmi_sh_auth_session }, 0, { 0, 0, 0 }}, /* CC_PolicyAuthorizeNV */ { 0x193, 1, { &hf_tpmi_dh_object, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_EncryptDecrypt2 */ { 0x194, 1, { &hf_tpmi_ht_handle, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_AC_GetCapability */ { 0x195, 3, { &hf_tpmi_dh_object, &hf_tpmi_rh_nv_auth, &hf_tpmi_ht_handle }, 0, { 0, 0, 0 }}, /* CC_AC_Send */ { 0x196, 1, { &hf_tpmi_sh_auth_session, 0, 0 }, 0, { 0, 0, 0 }}, /* CC_Policy_AC_SendSelect */ { 0x197, 2, { &hf_tpmi_dh_object, &hf_tpmi_dh_object, 0 }, 0, { 0, 0, 0 }}, /* CC_CertifyX509 */ { 0x198, 1, { &hf_tpmi_rh_act, 0, 0 }, 0, { 0, 0, 0 }}, /* TPM_CC_ACT_SetTimeout */ }; static void get_num_hndl(struct num_handles *map) { uint8_t i, y; for (i = 0; i < array_length(tpm_handles_map); i++) { if (map->command == tpm_handles_map[i].command) { map->num_req_handles = tpm_handles_map[i].num_req_handles; map->num_resp_handles = tpm_handles_map[i].num_resp_handles; for (y = 0; y < map->num_req_handles; y++) map->req_pd[y] = tpm_handles_map[i].req_pd[y]; for (y = 0; y < map->num_resp_handles; y++) map->resp_pd[y] = tpm_handles_map[i].resp_pd[y]; } } } static const value_string handles[] = { { 0x40000000, "TPM2_RH_SRK" }, { 0x40000001, "TPM2_RH_OWNER" }, { 0x40000002, "TPM2_RH_REVOKE" }, { 0x40000003, "TPM2_RH_TRANSPORT" }, { 0x40000004, "TPM2_RH_OPERATOR" }, { 0x40000005, "TPM2_RH_ADMIN" }, { 0x40000006, "TPM2_RH_EK" }, { 0x40000007, "TPM2_RH_NULL" }, { 0x40000008, "TPM2_RH_UNASSIGNED" }, { 0x40000009, "TPM2_RS_PW" }, { 0x4000000A, "TPM2_RH_LOCKOUT" }, { 0x4000000B, "TPM2_RH_ENDORSEMENT" }, { 0x4000000C, "TPM2_RH_PLATFORM" }, { 0x4000000D, "TPM2_RH_PLATFORM_NV" }, { 0x40000010, "TPM2_RH_AUTH_00" }, { 0x4000010F, "TPM2_RH_AUTH_FF" }, { 0x40000110, "TPM_RH_ACT_0" }, { 0x40000111, "TPM_RH_ACT_1" }, { 0x40000112, "TPM_RH_ACT_2" }, { 0x40000113, "TPM_RH_ACT_3" }, { 0x40000114, "TPM_RH_ACT_4" }, { 0x40000115, "TPM_RH_ACT_5" }, { 0x40000116, "TPM_RH_ACT_6" }, { 0x40000117, "TPM_RH_ACT_7" }, { 0x40000118, "TPM_RH_ACT_8" }, { 0x40000119, "TPM_RH_ACT_9" }, { 0x4000011A, "TPM_RH_ACT_10" }, { 0x4000011B, "TPM_RH_ACT_11" }, { 0x4000011C, "TPM_RH_ACT_12" }, { 0x4000011D, "TPM_RH_ACT_13" }, { 0x4000011E, "TPM_RH_ACT_14" }, { 0x4000011F, "TPM_RH_ACT_15" }, { 0, NULL } }; static const value_string startup_types[] = { { 0x0000, "TPM_SU_CLEAR" }, { 0x0001, "TPM_SU_STATE" }, { 0, NULL } }; static const value_string platform_commands[] = { { 0x01, "TPM_POWER_ON" }, { 0x02, "TPM_POWER_OFF" }, { 0x08, "TPM_SEND_COMMAND" }, { 0x09, "TPM_CANCEL_ON" }, { 0x0a, "TPM_CANCEL_OFF" }, { 0x0b, "TPM_NV_ON" }, { 0x14, "TPM_SESSION_END" }, { 0, NULL } }; static const value_string tags[] = { { 0x8001, "Command with no authorization Sessions" }, { 0x8002, "Command with authorization Sessions" }, { 0, NULL } }; static const value_string hierarhies[] = { { 0x40000001, "TPM2_RH_OWNER" }, { 0x40000007, "TPM2_RH_NULL" }, { 0x4000000B, "TPM2_RH_ENDORSEMENT" }, { 0x4000000C, "TPM2_RH_PLATFORM" }, { 0, NULL } }; static const value_string algs[] = { { 0x0001, "TPM2_ALG_RSA" }, { 0x0004, "TPM2_ALG_SHA" }, { 0x0005, "TPM2_ALG_HMAC" }, { 0x0006, "TPM2_ALG_AES" }, { 0x0007, "TPM2_ALG_MGF1" }, { 0x0008, "TPM2_ALG_KEYEDHASH" }, { 0x000A, "TPM2_ALG_XOR" }, { 0x000B, "TPM2_ALG_SHA256" }, { 0x000C, "TPM2_ALG_SHA384" }, { 0x000D, "TPM2_ALG_SHA512" }, { 0x0010, "TPM2_ALG_NULL" }, { 0x0012, "TPM2_ALG_SM3_256" }, { 0x0013, "TPM2_ALG_SM4" }, { 0x0014, "TPM2_ALG_RSASSA" }, { 0x0015, "TPM2_ALG_RSAES" }, { 0x0016, "TPM2_ALG_RSAPSS" }, { 0x0017, "TPM2_ALG_OAEP" }, { 0x0018, "TPM2_ALG_ECDSA" }, { 0x0019, "TPM2_ALG_ECDH" }, { 0x001A, "TPM2_ALG_ECDAA" }, { 0x001B, "TPM2_ALG_SM2" }, { 0x001C, "TPM2_ALG_ECSCHNORR" }, { 0x001D, "TPM2_ALG_ECMQV" }, { 0x0020, "TPM2_ALG_KDF1_SP800_56A" }, { 0x0021, "TPM2_ALG_KDF2" }, { 0x0022, "TPM2_ALG_KDF1_SP800_108" }, { 0x0023, "TPM2_ALG_ECC" }, { 0x0025, "TPM2_ALG_SYMCIPHER" }, { 0x0026, "TPM2_ALG_CAMELLIA" }, { 0x0040, "TPM2_ALG_CTR" }, { 0x0027, "TPM2_ALG_SHA3_256" }, { 0x0028, "TPM2_ALG_SHA3_384" }, { 0x0029, "TPM2_ALG_SHA3_512" }, { 0x0041, "TPM2_ALG_OFB" }, { 0x0042, "TPM2_ALG_CBC" }, { 0x0043, "TPM2_ALG_CFB" }, { 0x0044, "TPM2_ALG_ECB" }, { 0, NULL } }; static const value_string commands[] = { { 0x11f, "TPM2_CC_NV_UndefineSpaceSpecial" }, { 0x120, "TPM2_CC_EvictControl" }, { 0x121, "TPM2_CC_HierarchyControl" }, { 0x122, "TPM2_CC_NV_UndefineSpace" }, { 0x124, "TPM2_CC_ChangeEPS" }, { 0x125, "TPM2_CC_ChangePPS" }, { 0x126, "TPM2_CC_Clear" }, { 0x127, "TPM2_CC_ClearControl" }, { 0x128, "TPM2_CC_ClockSet" }, { 0x129, "TPM2_CC_HierarchyChangeAuth" }, { 0x12a, "TPM2_CC_NV_DefineSpace" }, { 0x12b, "TPM2_CC_PCR_Allocate" }, { 0x12c, "TPM2_CC_PCR_SetAuthPolicy" }, { 0x12d, "TPM2_CC_PP_Commands" }, { 0x12e, "TPM2_CC_SetPrimaryPolicy" }, { 0x12f, "TPM2_CC_FieldUpgradeStart" }, { 0x130, "TPM2_CC_ClockRateAdjust" }, { 0x131, "TPM2_CC_CreatePrimary" }, { 0x132, "TPM2_CC_NV_GlobalWriteLock" }, { 0x133, "TPM2_CC_GetCommandAuditDigest" }, { 0x134, "TPM2_CC_NV_Increment" }, { 0x135, "TPM2_CC_NV_SetBits" }, { 0x136, "TPM2_CC_NV_Extend" }, { 0x137, "TPM2_CC_NV_Write" }, { 0x138, "TPM2_CC_NV_WriteLock" }, { 0x139, "TPM2_CC_DictionaryAttackLockReset" }, { 0x13a, "TPM2_CC_DictionaryAttackParameters" }, { 0x13b, "TPM2_CC_NV_ChangeAuth" }, { 0x13c, "TPM2_CC_PCR_Event" }, { 0x13d, "TPM2_CC_PCR_Reset" }, { 0x13e, "TPM2_CC_SequenceComplete" }, { 0x13f, "TPM2_CC_SetAlgorithmSet" }, { 0x140, "TPM2_CC_SetCommandCodeAuditStatus" }, { 0x141, "TPM2_CC_FieldUpgradeData" }, { 0x142, "TPM2_CC_IncrementalSelfTest" }, { 0x143, "TPM2_CC_SelfTest" }, { 0x144, "TPM2_CC_Startup" }, { 0x145, "TPM2_CC_Shutdown" }, { 0x146, "TPM2_CC_StirRandom" }, { 0x147, "TPM2_CC_ActivateCredential" }, { 0x148, "TPM2_CC_Certify" }, { 0x149, "TPM2_CC_PolicyNV" }, { 0x14a, "TPM2_CC_CertifyCreation" }, { 0x14b, "TPM2_CC_Duplicate" }, { 0x14c, "TPM2_CC_GetTime" }, { 0x14d, "TPM2_CC_GetSessionAuditDigest" }, { 0x14e, "TPM2_CC_NV_Read" }, { 0x14f, "TPM2_CC_NV_ReadLock" }, { 0x150, "TPM2_CC_ObjectChangeAuth" }, { 0x151, "TPM2_CC_PolicySecret" }, { 0x152, "TPM2_CC_Rewrap" }, { 0x153, "TPM2_CC_Create" }, { 0x154, "TPM2_CC_ECDH_ZGen" }, { 0x155, "TPM2_CC_HMAC" }, { 0x156, "TPM2_CC_Import" }, { 0x157, "TPM2_CC_Load" }, { 0x158, "TPM2_CC_Quote" }, { 0x159, "TPM2_CC_RSA_Decrypt" }, { 0x15b, "TPM2_CC_HMAC_Start" }, { 0x15c, "TPM2_CC_SequenceUpdate" }, { 0x15d, "TPM2_CC_Sign" }, { 0x15e, "TPM2_CC_Unseal" }, { 0x160, "TPM2_CC_PolicySigned" }, { 0x161, "TPM2_CC_ContextLoad" }, { 0x162, "TPM2_CC_ContextSave" }, { 0x163, "TPM2_CC_ECDH_KeyGen" }, { 0x164, "TPM2_CC_EncryptDecrypt" }, { 0x165, "TPM2_CC_FlushContext" }, { 0x167, "TPM2_CC_LoadExternal" }, { 0x168, "TPM2_CC_MakeCredential" }, { 0x169, "TPM2_CC_NV_ReadPublic" }, { 0x16a, "TPM2_CC_PolicyAuthorize" }, { 0x16b, "TPM2_CC_PolicyAuthValue" }, { 0x16c, "TPM2_CC_PolicyCommandCode" }, { 0x16d, "TPM2_CC_PolicyCounterTimer" }, { 0x16e, "TPM2_CC_PolicyCpHash" }, { 0x16f, "TPM2_CC_PolicyLocality" }, { 0x170, "TPM2_CC_PolicyNameHash" }, { 0x171, "TPM2_CC_PolicyOR" }, { 0x172, "TPM2_CC_PolicyTicket" }, { 0x173, "TPM2_CC_ReadPublic" }, { 0x174, "TPM2_CC_RSA_Encrypt" }, { 0x176, "TPM2_CC_StartAuthSession" }, { 0x177, "TPM2_CC_VerifySignature" }, { 0x178, "TPM2_CC_ECC_Parameters" }, { 0x179, "TPM2_CC_FirmwareRead" }, { 0x17a, "TPM2_CC_GetCapability" }, { 0x17b, "TPM2_CC_GetRandom" }, { 0x17c, "TPM2_CC_GetTestResult" }, { 0x17d, "TPM2_CC_Hash" }, { 0x17e, "TPM2_CC_PCR_Read" }, { 0x17f, "TPM2_CC_PolicyPCR" }, { 0x180, "TPM2_CC_PolicyRestart" }, { 0x181, "TPM2_CC_ReadClock" }, { 0x182, "TPM2_CC_PCR_Extend" }, { 0x183, "TPM2_CC_PCR_SetAuthValue" }, { 0x184, "TPM2_CC_NV_Certify" }, { 0x185, "TPM2_CC_EventSequenceComplete" }, { 0x186, "TPM2_CC_HashSequenceStart" }, { 0x187, "TPM2_CC_PolicyPhysicalPresence" }, { 0x188, "TPM2_CC_PolicyDuplicationSelect" }, { 0x189, "TPM2_CC_PolicyGetDigest" }, { 0x18a, "TPM2_CC_TestParms" }, { 0x18b, "TPM2_CC_Commit" }, { 0x18c, "TPM2_CC_PolicyPassword" }, { 0x18d, "TPM2_CC_ZGen_2Phase" }, { 0x18e, "TPM2_CC_EC_Ephemeral" }, { 0x18f, "TPM2_CC_PolicyNvWritten" }, { 0x190, "TPM2_CC_PolicyTemplate" }, { 0x191, "TPM2_CC_CreateLoaded" }, { 0x192, "TPM2_CC_PolicyAuthorizeNV" }, { 0x193, "TPM2_CC_EncryptDecrypt2" }, { 0x194, "TPM2_CC_AC_GetCapability" }, { 0x195, "TPM2_CC_AC_Send" }, { 0x196, "TPM2_CC_Policy_AC_SendSelect" }, { 0x197, "TPM2_CC_CertifyX509" }, { 0x198, "TPM2_CC_ACT_SetTimeout" }, { 0, NULL } }; static const value_string session_type [] = { { 0x00, "TPM2_SE_HMAC" }, { 0x01, "TPM2_SE_POLICY" }, { 0x03, "TPM2_SE_TRIAL" }, { 0, NULL } }; static const value_string responses [] = { { 0x00, "TPM2 Success" }, { 0x100, "TPM2_RC_INITIALIZE, TPM not initialized by TPM2_Startup or already initialized" }, { 0x101, "TPM2_RC_FAILURE, Commands not being accepted because of a TPM failure" }, { 0x103, "TPM2_RC_SEQUENCE, Improper use of a sequence handle" }, { 0x10B, "TPM2_RC_PRIVATE" }, { 0x119, "TPM2_RC_HMAC" }, { 0x120, "TPM2_RC_DISABLED, The command is disabled" }, { 0x121, "TPM2_RC_EXCLUSIVE, Command failed because audit sequence required exclusivity" }, { 0x124, "TPM2_RC_AUTH_TYPE, Authorization handle is not correct for command" }, { 0x125, "TPM2_RC_AUTH_MISSING, Command requires an authorization session for handle and it is not present" }, { 0x126, "TPM2_RC_POLICY, Policy failure in math operation or an invalid authPolicy value" }, { 0x127, "TPM2_RC_PCR, PCR check fail" }, { 0x128, "TPM2_RC_PCR_CHANGED, PCR have changed since checked" }, { 0x12D, "TPM2_RC_UPGRADE, TPM is in field upgrade mode" }, { 0x12E, "TPM2_RC_TOO_MANY_CONTEXTS, Context ID counter is at maximum" }, { 0x12F, "TPM2_RC_AUTH_UNAVAILABLE, AuthValue or authPolicy is not available for selected entity" }, { 0x130, "TPM2_RC_REBOOT, _TPM_Init and StartupCLEAR is required before the TPM can resume operation" }, { 0x131, "TPM2_RC_UNBALANCED, The digest size of must be larger than the symmetric key size" }, { 0x142, "TPM2_RC_COMMAND_SIZE, Command Size value is inconsistent with contents of the command buffer" }, { 0x143, "TPM2_RC_COMMAND_CODE, Command code not supported" }, { 0x144, "TPM2_RC_AUTHSIZE, The value of authorization size is out of range" }, { 0x145, "TPM2_RC_AUTH_CONTEXT, Use of an authorization session with a context that cannot have an authorization session" }, { 0x146, "TPM2_RC_NV_RANGE, NV offset + size is out of range" }, { 0x147, "TPM2_RC_NV_SIZE, Requested allocation size is larger than allowed" }, { 0x148, "TPM2_RC_NV_LOCKED, NV access locked" }, { 0x149, "TPM2_RC_NV_AUTHORIZATION, NV access authorization fails in command actions" }, { 0x14A, "TPM2_RC_NV_UNINITIALIZED, An NV Index is used before being initialized or the state could not be restored" }, { 0x14B, "TPM2_RC_NV_SPACE, Insufficient space for NV allocation" }, { 0x14C, "TPM2_RC_NV_DEFINED, NV Index or persistent object already defined" }, { 0x150, "TPM2_RC_BAD_CONTEXT, Context in TPM2_ContextLoad is not valid" }, { 0x151, "TPM2_RC_CPHASH, cpHash value already set or not correct for use" }, { 0x152, "TPM2_RC_PARENT, Handle for parent is not a valid parent" }, { 0x153, "TPM2_RC_NEEDS_TEST, Some function needs testing" }, { 0x154, "TPM2_RC_NO_RESULT, Internal function cannot process a request due to an unspecified problem" }, { 0x155, "TPM2_RC_SENSITIVE, The sensitive area did not unmarshal correctly after decryption" }, { 0x801, "TPM2_RC_ASYMMETRIC, Asymmetric algorithm not supported or not correct" }, { 0x802, "TPM2_RC_ATTRIBUTES, Inconsistent attributes" }, { 0x803, "TPM2_RC_HASH, Hash algorithm not supported or not appropriate" }, { 0x804, "TPM2_RC_VALUE, Value is out of range or is not correct for the context" }, { 0x805, "TPM2_RC_HIERARCHY, Hierarchy is not enabled or is not correct for the use" }, { 0x807, "TPM2_RC_KEY_SIZE, Key size is not supported" }, { 0x808, "TPM2_RC_MGF, Mask generation function not supported" }, { 0x809, "TPM2_RC_MODE, Mode of operation not supported" }, { 0x80A, "TPM2_RC_TYPE, The type of the value is not appropriate for the use" }, { 0x80B, "TPM2_RC_HANDLE, The handle is not correct for the use" }, { 0x80C, "TPM2_RC_KDF, Unsupported key derivation function or function not appropriate for use" }, { 0x80D, "TPM2_RC_RANGE, Value was out of allowed range" }, { 0x80E, "TPM2_RC_AUTH_FAIL, The authorization HMAC check failed" }, { 0x80F, "TPM2_RC_NONCE, invalid nonce size or nonce value mismatch" }, { 0x810, "TPM2_RC_PP, Authorization requires assertion of PP" }, { 0x812, "TPM2_RC_SCHEME, Unsupported or incompatible scheme" }, { 0x815, "TPM2_RC_SIZE, Structure is the wrong size" }, { 0x816, "TPM2_RC_SYMMETRIC, Unsupported symmetric algorithm or key size or not appropriate for instance" }, { 0x817, "TPM2_RC_TAG, Incorrect structure tag" }, { 0x818, "TPM2_RC_SELECTOR, Union selector is incorrect" }, { 0x81A, "TPM2_RC_INSUFFICIENT, Unable to unmarshal a value because there were not enough octets in the input buffer" }, { 0x81B, "TPM2_RC_SIGNATURE, The signature is not valid" }, { 0x81C, "TPM2_RC_KEY, Key fields are not compatible with the selected use" }, { 0x81D, "TPM2_RC_POLICY_FAIL, Policy check failed" }, { 0x81F, "TPM2_RC_INTEGRITY, Integrity check failed" }, { 0x820, "TPM2_RC_TICKET, Invalid ticket" }, { 0x821, "TPM2_RC_RESERVED_BITS, Reserved bits not set to zero as required" }, { 0x822, "TPM2_RC_BAD_AUTH, Authorization failure without DA implications" }, { 0x823, "TPM2_RC_EXPIRED, The policy has expired" }, { 0x824, "TPM2_RC_POLICY_CC, The commandCode in the policy is not the commandCode of the command or command not implemented" }, { 0x825, "TPM2_RC_BINDING, Public and sensitive portions of an object are not cryptographically bound" }, { 0x826, "TPM2_RC_CURVE, Curve not supported" }, { 0x827, "TPM2_RC_ECC_POINT, Point is not on the required curve" }, { 0x901, "TPM2_RC_CONTEXT_GAP, Gap for context ID is too large" }, { 0x902, "TPM2_RC_OBJECT_MEMORY, Out of memory for object contexts" }, { 0x903, "TPM2_RC_SESSION_MEMORY, Out of memory for session contexts" }, { 0x904, "TPM2_RC_MEMORY, Out of shared objectsession memory or need space for internal operations" }, { 0x905, "TPM2_RC_SESSION_HANDLES, Out of session handles. A session must be flushed before a new session may be created" }, { 0x906, "TPM2_RC_OBJECT_HANDLES, Out of object handles. A reboot is required" }, { 0x907, "TPM2_RC_LOCALITY, Bad locality" }, { 0x908, "TPM2_RC_YIELDED, TPM has suspended operation on the command" }, { 0x909, "TPM2_RC_CANCELED, The command was canceled" }, { 0x90A, "TPM2_RC_TESTING, TPM is performing selftests" }, { 0x910, "TPM2_RC_REFERENCE_H0, The 1st handle references a transient object or session that is not loaded" }, { 0x911, "TPM2_RC_REFERENCE_H1, The 2nd handle references a transient object or session that is not loaded" }, { 0x912, "TPM2_RC_REFERENCE_H2, The 3rd handle references a transient object or session that is not loaded" }, { 0x913, "TPM2_RC_REFERENCE_H3, The 4th handle references a transient object or session that is not loaded" }, { 0x914, "TPM2_RC_REFERENCE_H4, The 5th handle references a transient object or session that is not loaded" }, { 0x915, "TPM2_RC_REFERENCE_H5, The 6th handle references a transient object or session that is not loaded" }, { 0x916, "TPM2_RC_REFERENCE_H6, The 7th handle references a transient object or session that is not loaded" }, { 0x918, "TPM2_RC_REFERENCE_S0, The 1st authorization session handle references a session that is not loaded" }, { 0x919, "TPM2_RC_REFERENCE_S1, The 2nd authorization session handle references a session that is not loaded" }, { 0x91A, "TPM2_RC_REFERENCE_S2, The 3rd authorization session handle references a session that is not loaded" }, { 0x91B, "TPM2_RC_REFERENCE_S3, The 4th authorization session handle references a session that is not loaded" }, { 0x91C, "TPM2_RC_REFERENCE_S4, The 5th session handle references a session that is not loaded" }, { 0x91D, "TPM2_RC_REFERENCE_S5, The 6th session handle references a session that is not loaded" }, { 0x91E, "TPM2_RC_REFERENCE_S6, The 7th authorization session handle references a session that is not loaded" }, { 0x920, "TPM2_RC_NV_RATE, The TPM is ratelimiting accesses to prevent wearout of NV" }, { 0x921, "TPM2_RC_LOCKOUT, Authorizations for objects subject to DA protection are not allowed at this time. TPM is in DA lockout mode" }, { 0x922, "TPM2_RC_RETRY - the TPM was not able to start the command" }, { 0x923, "TPM2_RC_NV_UNAVAILABLE - the command may require writing of NV and NV is not current accessible" }, { 0, NULL } }; #define TPMA_SESSION_CONTINUESESSION 0x01 #define TPMA_SESSION_AUDITEXCLUSIVE 0x02 #define TPMA_SESSION_AUDITRESET 0x04 #define TPMA_SESSION_RESERVED1_MASK 0x18 #define TPMA_SESSION_DECRYPT 0x20 #define TPMA_SESSION_ENCRYPT 0x40 #define TPMA_SESSION_AUDIT 0x80 static tpm_entry *get_command_entry(wmem_tree_t *tree, uint32_t pnum) { tpm_entry *entry = (tpm_entry *)wmem_tree_lookup32(tree, pnum); DISSECTOR_ASSERT(entry != NULL); tpm_entry *command_entry = (tpm_entry *)wmem_tree_lookup32(tree, entry->com_pnum); DISSECTOR_ASSERT(command_entry != NULL); return command_entry; } static void dissect_tpm20_platform_command(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { uint32_t command; proto_tree_add_item_ret_uint(tree, hf_tpm20_platform_cmd, tvb, 0, 4, ENC_BIG_ENDIAN, &command); col_append_fstr(pinfo->cinfo, COL_INFO, ", Platform Command %s", val_to_str(command, platform_commands, "Unknown (0x%02x)")); proto_item_append_text(tree, ", %s", val_to_str(command, platform_commands, "Unknown (0x%02x)")); response_size = false; } static void dissect_auth_common(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *auth, proto_tree *tree _U_, int *offset) { unsigned nonce_size, auth_size; static int * const attrib_fields[] = { &hf_session_attribs_cont, &hf_session_attribs_auditex, &hf_session_attribs_auditreset, &hf_session_attribs_res, &hf_session_attribs_decrypt, &hf_session_attribs_encrypt, &hf_session_attribs_audit, NULL }; proto_tree_add_item_ret_uint(auth, hf_session_nonce_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &nonce_size); *offset += 2; proto_tree_add_item(auth, hf_session_nonce, tvb, *offset, nonce_size, ENC_NA); *offset += nonce_size; proto_tree_add_bitmask_text(auth, tvb, *offset, 1, "Session attributes", NULL, ett_tpm_attrib, attrib_fields, ENC_NA, BMT_NO_APPEND); *offset += 1; proto_tree_add_item_ret_uint(auth, hf_session_auth_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &auth_size); *offset += 2; proto_tree_add_item(auth, hf_session_auth, tvb, *offset, auth_size, ENC_NA); *offset += auth_size; } static void dissect_auth_resp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *auth, proto_tree *tree, int *offset) { tpm_entry *command_entry = get_command_entry(cmd_tree, pinfo->num); uint32_t i; for (i = 0; i < command_entry->num_auths; i++) dissect_auth_common(tvb, pinfo, auth, tree, offset); } static void dissect_auth_command(tvbuff_t *tvb, packet_info *pinfo, proto_tree *auth, proto_tree *tree, int *offset) { uint32_t auth_area_size; uint32_t num_auths = 0; tpm_entry *entry = (tpm_entry *)wmem_tree_lookup32(cmd_tree, pinfo->num); DISSECTOR_ASSERT(entry != NULL); proto_tree_add_item_ret_uint(auth, hf_auth_area_size, tvb, *offset, 4, ENC_BIG_ENDIAN, &auth_area_size); *offset += 4; if (auth_area_size < TPM_MIN_AUTH_LEN) proto_tree_add_expert_format(auth, pinfo, &ei_invalid_auth_size, tvb, 0, 0, "Error: Auth size: %d", auth_area_size); while (auth_area_size) { uint32_t size; proto_tree_add_item(auth, hf_tpmi_sh_auth_session, tvb, *offset, 4, ENC_BIG_ENDIAN); *offset += 4; auth_area_size -= 4; size = *offset; dissect_auth_common(tvb, pinfo, auth, tree, offset); auth_area_size -= *offset - size; num_auths++; } if (num_auths > MAX_SESSIONS) proto_tree_add_expert_format(auth, pinfo, &ei_invalid_num_sessions, tvb, 0, 0, "Error: Invalid Number of sessions: %d", num_auths); entry->num_auths = num_auths; } static void dissect_startup(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *header, proto_tree *tree _U_, int *offset) { proto_tree_add_item(header, hf_tpm20_startup_type, tvb, *offset, 2, ENC_BIG_ENDIAN); *offset += 2; } static void dissect_start_auth_session(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *header _U_, proto_tree *tree, int *offset) { uint32_t nonce_size, encrypted, sym_alg; proto_tree_add_item_ret_uint(tree, hf_session_nonce_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &nonce_size); *offset += 2; proto_tree_add_item(tree, hf_session_nonce, tvb, *offset, nonce_size, ENC_NA); *offset += nonce_size; proto_tree_add_item_ret_uint(tree, hf_encrypted_secret_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &encrypted); *offset += 2; proto_tree_add_item(tree, hf_encrypted_secret, tvb, *offset, encrypted, ENC_NA); *offset += encrypted; proto_tree_add_item(tree, hf_session_type, tvb, *offset, 1, ENC_NA); *offset += 1; proto_tree_add_item_ret_uint(tree, hf_alg_sym, tvb, *offset, 2, ENC_BIG_ENDIAN, &sym_alg); *offset += 2; if (sym_alg != TPM_ALG_NULL) { proto_tree_add_item(tree, hf_alg_sym_keybits, tvb, *offset, 2, ENC_BIG_ENDIAN); *offset += 2; proto_tree_add_item(tree, hf_alg_sym_mode, tvb, *offset, 2, ENC_BIG_ENDIAN); *offset += 2; } proto_tree_add_item(tree, hf_alg_hash, tvb, *offset, 2, ENC_NA); *offset += 2; } static void dissect_create_primary(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *header _U_, proto_tree *tree, int *offset) { uint32_t sensitive_size, pub_size, data_size; proto_tree_add_item_ret_uint(tree, hf_tpm_sensitive_crate_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &sensitive_size); *offset += 2; proto_tree_add_item(tree, hf_tpm_sensitive_crate, tvb, *offset, sensitive_size, ENC_NA); *offset += sensitive_size; proto_tree_add_item_ret_uint(tree, hf_tpm_pub_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &pub_size); *offset += 2; proto_tree_add_item(tree, hf_tpm_pub, tvb, *offset, pub_size, ENC_NA); *offset += pub_size; proto_tree_add_item_ret_uint(tree, hf_tpm_data_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &data_size); *offset += 2; proto_tree_add_item(tree, hf_tpm_data, tvb, *offset, data_size, ENC_NA); *offset += data_size; } static void dissect_create_loaded(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *header _U_, proto_tree *tree, int *offset) { uint32_t sensitive_size, template_size; proto_tree_add_item_ret_uint(tree, hf_tpm_sensitive_crate_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &sensitive_size); *offset += 2; proto_tree_add_item(tree, hf_tpm_sensitive_crate, tvb, *offset, sensitive_size, ENC_NA); *offset += sensitive_size; proto_tree_add_item_ret_uint(tree, hf_tpm_template_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &template_size); *offset += 2; proto_tree_add_item(tree, hf_tpm_template, tvb, *offset, template_size, ENC_NA); *offset += template_size; } static void dissect_command(uint32_t command, tvbuff_t *tvb, packet_info *pinfo, proto_tree *header, proto_tree *tree, int *offset) { last_command_pnum = pinfo->num; switch (command) { case 0x144: /* TPM Start Up */ dissect_startup(tvb, pinfo, header, tree, offset); break; case 0x12e: /* Create Primary */ dissect_create_primary(tvb, pinfo, header, tree, offset); break; case 0x176: /* Start Auth Session */ dissect_start_auth_session(tvb, pinfo, header, tree, offset); break; case 0x191: /* Create Loaded */ dissect_create_loaded(tvb, pinfo, header, tree, offset); break; } } static void dissect_tpm20_tpm_command(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree) { int offset = 0; uint32_t command = tvb_get_uint32(tvb, 6, ENC_BIG_ENDIAN); uint16_t tag = tvb_get_uint16(tvb, 0, ENC_BIG_ENDIAN); struct num_handles handl_map; unsigned int i; col_append_fstr(pinfo->cinfo, COL_INFO, ", Command %s", val_to_str(command, commands, "Unknown (0x%02x)")); proto_item *item = proto_tree_add_item(tree, proto_tpm20_header, tvb, 0, -1, ENC_NA); proto_item_append_text(item, ", %s", val_to_str(command, commands, "Unknown (0x%02x)")); proto_tree *header = proto_item_add_subtree(item, ett_tpm_header); proto_tree_add_item(header, hf_tpm20_tag, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(header, hf_tpm20_size, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(header, hf_tpm20_cc, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; tpm_entry *entry = (tpm_entry *)wmem_tree_lookup32(cmd_tree, pinfo->num); DISSECTOR_ASSERT(entry != NULL); entry->command = command; handl_map.command = command; handl_map.num_req_handles = 0; handl_map.num_resp_handles = 0; get_num_hndl(&handl_map); if (handl_map.num_req_handles) { proto_item *hndls = proto_tree_add_item(tree, proto_tpm20_hndl_area, tvb, 0, -1, ENC_NA); proto_tree *hndl_tree = proto_item_add_subtree(hndls, ett_tpm_handles); for (i = 0; i < handl_map.num_req_handles; i++) { proto_tree_add_item(hndl_tree, *handl_map.req_pd[i], tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } } if (tag == 0x8002) { proto_item *auth = proto_tree_add_item(tree, proto_tpm20_auth_area, tvb, 0, -1, ENC_NA); proto_tree *auth_tree = proto_item_add_subtree(auth, ett_tpm_auth); dissect_auth_command(tvb, pinfo, auth_tree, tree, &offset); } else if (tag != 0x8001) { proto_tree_add_expert_format(tree, pinfo, &ei_invalid_tag, tvb, 0, 0, "Error: Invalid Tag: %x", tag); } dissect_command(command, tvb, pinfo, header, tree, &offset); response_size = true; } #define PNUM_UNINIT 0xFFFFFFFF #define RESP_CODE 1 #define RESP_SIZE 2 static void dissect_tpm20_platform_response(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree) { uint32_t rc = tvb_get_uint32(tvb, 0, ENC_BIG_ENDIAN); tpm_entry *entry = (tpm_entry *)wmem_tree_lookup32(cmd_tree, pinfo->num); DISSECTOR_ASSERT(entry != NULL); if (entry->resp_type == PNUM_UNINIT) { if (response_size == true) { entry->resp_type = RESP_SIZE; response_size = false; } else { entry->resp_type = RESP_CODE; response_size = true; } } if (entry->resp_type == RESP_SIZE) { col_append_fstr(pinfo->cinfo, COL_INFO, ", Response size %d", rc); proto_item_append_text(tree, ", Response size %d", rc); proto_tree_add_item(tree, hf_tpm20_platform_resp_size, tvb, 0, 4, ENC_BIG_ENDIAN); } else { col_append_fstr(pinfo->cinfo, COL_INFO, ", Response code %d", rc); proto_item_append_text(tree, ", Response code %s", val_to_str(rc, responses, "Unknown (0x%02x)")); proto_tree_add_item(tree, hf_tpm20_platform_resp_code, tvb, 0, 4, ENC_BIG_ENDIAN); } } static void dissect_start_auth_session_resp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int *offset, uint32_t param_size _U_) { uint32_t nonce_size; proto_tree_add_item_ret_uint(tree, hf_session_nonce_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &nonce_size); *offset += 2; proto_tree_add_item(tree, hf_session_nonce, tvb, *offset, nonce_size, ENC_NA); *offset += nonce_size; } static void dissect_create_primary_resp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int *offset, uint32_t param_size _U_) { uint32_t pub_size, creation_data_size, digest_size, name_size; proto_tree_add_item_ret_uint(tree, hf_tpm_pub_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &pub_size); *offset += 2; proto_tree_add_item(tree, hf_tpm_pub, tvb, *offset, pub_size, ENC_NA); *offset += pub_size; proto_tree_add_item_ret_uint(tree, hf_tpm_creation_data_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &creation_data_size); *offset += 2; proto_tree_add_item(tree, hf_tpm_creation_data, tvb, *offset, creation_data_size, ENC_NA); *offset += creation_data_size; proto_tree_add_item_ret_uint(tree, hf_tpm_digest_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &digest_size); *offset += 2; proto_tree_add_item(tree, hf_tpm_digest, tvb, *offset, digest_size, ENC_NA); *offset += digest_size; proto_tree_add_item_ret_uint(tree, hf_tpm_name_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &name_size); *offset += 2; proto_tree_add_item(tree, hf_tpm_name, tvb, *offset, name_size, ENC_NA); *offset += name_size; } static void dissect_create_loaded_resp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int *offset, uint32_t param_size _U_) { uint32_t priv_size, pub_size, name_size; proto_tree_add_item_ret_uint(tree, hf_tpm_priv_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &priv_size); *offset += 2; proto_tree_add_item(tree, hf_tpm_priv, tvb, *offset, priv_size, ENC_NA); *offset += priv_size; proto_tree_add_item_ret_uint(tree, hf_tpm_pub_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &pub_size); *offset += 2; proto_tree_add_item(tree, hf_tpm_pub, tvb, *offset, pub_size, ENC_NA); *offset += pub_size; proto_tree_add_item_ret_uint(tree, hf_tpm_name_size, tvb, *offset, 2, ENC_BIG_ENDIAN, &name_size); *offset += 2; proto_tree_add_item(tree, hf_tpm_name, tvb, *offset, name_size, ENC_NA); *offset += name_size; } static void dissect_response(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int *offset, uint32_t param_size) { tpm_entry *entry = get_command_entry(cmd_tree, pinfo->num); switch (entry->command) { case 0x12e: /* Create Primary */ dissect_create_primary_resp(tvb, pinfo, tree, offset, param_size); break; case 0x176: /* Start Auth Session */ dissect_start_auth_session_resp(tvb, pinfo, tree, offset, param_size); break; case 0x191: /* Create Loaded */ dissect_create_loaded_resp(tvb, pinfo, tree, offset, param_size); break; case 0x144: /* TPM Start Up */ break; default: /* For now dissect everything else and 'params'. * This will allow to process the response auth section */ proto_tree_add_item(tree, hf_params, tvb, *offset, param_size, ENC_NA); *offset += param_size; } } static void dissect_tpm20_tpm_response(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree) { int offset = 0; struct num_handles handl_map; uint16_t tag = tvb_get_uint16(tvb, 0, ENC_BIG_ENDIAN); uint32_t rc = tvb_get_uint32(tvb, 6, ENC_BIG_ENDIAN); uint32_t param_size; unsigned int i; col_append_fstr(pinfo->cinfo, COL_INFO, ", Response Code %s", val_to_str(rc, responses, "Unknown (0x%02x)")); proto_item *item = proto_tree_add_item(tree, proto_tpm20_resp_header, tvb, 0, -1, ENC_NA); proto_item_append_text(item, ", %s", val_to_str(rc, responses, "Unknown (0x%02x)")); proto_tree *header = proto_item_add_subtree(item, ett_tpm_response_header); proto_tree_add_item(header, hf_tpm20_resp_tag, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(header, hf_tpm20_resp_size, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(header, hf_tpm20_resp_code, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* if response code says error stop now */ if (rc) return; /* find a corresponding request */ tpm_entry *entry = (tpm_entry *)wmem_tree_lookup32(cmd_tree, pinfo->num); DISSECTOR_ASSERT(entry != NULL); if (entry->com_pnum == PNUM_UNINIT) { entry->com_pnum = last_command_pnum; } tpm_entry *command_entry = (tpm_entry *)wmem_tree_lookup32(cmd_tree, entry->com_pnum); DISSECTOR_ASSERT(command_entry != NULL); handl_map.command = command_entry->command; handl_map.num_req_handles = 0; handl_map.num_resp_handles = 0; get_num_hndl(&handl_map); /* Dissect response handles */ if (handl_map.num_resp_handles) { proto_item *hndls = proto_tree_add_item(tree, proto_tpm20_hndl_area, tvb, 0, -1, ENC_NA); proto_tree *hndl_tree = proto_item_add_subtree(hndls, ett_tpm_handles); for (i = 0; i < handl_map.num_resp_handles; i++) { proto_tree_add_item(hndl_tree, *handl_map.resp_pd[i], tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } } if (tag == 0x8002) { /* Dissect response params size and params */ param_size = tvb_get_uint32(tvb, offset, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_resp_param_size, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; if (param_size) { proto_item *params = proto_tree_add_item(tree, proto_tpm20_params_area, tvb, 0, -1, ENC_NA); proto_tree *param_tree = proto_item_add_subtree(params, ett_tpm_params); dissect_response(tvb, pinfo, param_tree, &offset, param_size); } /* Dissect response auth area */ proto_item *auth = proto_tree_add_item(tree, proto_tpm20_auth_area, tvb, 0, -1, ENC_NA); proto_tree *auth_tree = proto_item_add_subtree(auth, ett_tpm_auth); dissect_auth_resp(tvb, pinfo, auth_tree, tree, &offset); } else if (tag == 0x8001) { /* Dissect rest of the response */ dissect_response(tvb, pinfo, tree, &offset, 0); } else { proto_tree_add_expert_format(tree, pinfo, &ei_invalid_tag, tvb, 0, 0, "Error: Invalid Tag: %x", tag); } } static int dissect_tpm20(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { tpm_entry *entry; col_set_str(pinfo->cinfo, COL_PROTOCOL, "TPM"); col_clear(pinfo->cinfo, COL_INFO); col_append_ports(pinfo->cinfo, COL_INFO, PT_NONE, pinfo->srcport, pinfo->destport); int length = tvb_reported_length(tvb); entry = (tpm_entry *)wmem_tree_lookup32(cmd_tree, pinfo->num); if (entry == NULL) { entry = wmem_new(wmem_file_scope(), tpm_entry); entry->com_pnum = PNUM_UNINIT; entry->resp_type = PNUM_UNINIT; entry->command = 0; entry->num_auths = 0; wmem_tree_insert32(cmd_tree, pinfo->num, entry); } proto_item *item = proto_tree_add_item(tree, proto_tpm20, tvb, 0, -1, ENC_NA); proto_tree *tpm_tree = proto_item_add_subtree(item, ett_tpm); if (pinfo->srcport > pinfo->destport) { col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, " [TPM Request]"); if (length >= TPM_COMMAND_HEADER_LEN) dissect_tpm20_tpm_command(tvb, pinfo, tpm_tree); else dissect_tpm20_platform_command(tvb, pinfo, tpm_tree); } else { col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, " [TPM Response]"); if (length >= TPM_COMMAND_HEADER_LEN) dissect_tpm20_tpm_response(tvb, pinfo, tpm_tree); else dissect_tpm20_platform_response(tvb, pinfo, tpm_tree); } col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "len(%d)", length); return tvb_captured_length(tvb); } static hf_register_info hf[] = { { &proto_tpm20_header, { "TPM2.0 Header", "tpm.req.header", FT_NONE, BASE_NONE, NULL, 0x0, "Tpm header", HFILL }}, { &hf_tpm20_tag, { "Tag", "tpm.req.tag", FT_UINT16, BASE_HEX, VALS(tags), 0x0, NULL, HFILL }}, { &hf_tpm20_size, { "Command size", "tpm.req.size", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_tpm20_cc, { "Command Code", "tpm.req.cc", FT_UINT32, BASE_HEX, VALS(commands), 0x0, NULL, HFILL }}, { &proto_tpm20_auth_area, { "Authorization Area", "tpm.req.auth", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &proto_tpm20_hndl_area, { "Handle Area", "tpm.req.hndl", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &proto_tpm20_params_area, { "Parameters Area", "tpm.resp.params", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_tpm20_platform_cmd, { "Platform Command", "tpm.platform_req.cc", FT_UINT32, BASE_HEX, VALS(platform_commands), 0x0, NULL, HFILL }}, { &proto_tpm20_resp_header, { "TPM2.0 Header", "tpm.resp.header", FT_NONE, BASE_NONE, NULL, 0x0, "Tpm header", HFILL }}, { &hf_tpm20_platform_resp_code, { "Platform Response Code", "tpm.resp.code", FT_UINT32, BASE_HEX, VALS(responses), 0x0, NULL, HFILL }}, { &hf_tpm20_platform_resp_size, { "Platform Response size", "tpm.resp.size", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_tpm20_resp_tag, { "Response Tag", "tpm.resp.tag", FT_UINT16, BASE_HEX, VALS(tags), 0x0, NULL, HFILL }}, { &hf_tpm20_resp_size, { "Response size", "tpm.resp.size", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_tpm20_resp_code, { "Response rc", "tpm.resp.rc", FT_UINT32, BASE_HEX, VALS(responses), 0x0, NULL, HFILL }}, { &hf_tpm20_startup_type, { "Startup type", "tpm.startup.type", FT_UINT16, BASE_HEX, VALS(startup_types), 0x0, NULL, HFILL }}, { &hf_tpmi_dh_object, { "TPMI_DH_OBJECT", "tpm.handle.TPMI_DH_OBJECT", FT_UINT32, BASE_HEX, VALS(handles), 0x0, NULL, HFILL }}, { &hf_tpmi_dh_entity, { "TPMI_DH_ENTITY", "tpm.handle.TPMI_DH_ENTITY", FT_UINT32, BASE_HEX, VALS(handles), 0x0, NULL, HFILL }}, { &hf_tpmi_dh_context, { "TPMI_DH_CONTEXT", "tpm.handle.TPMI_DH_CONTEXT", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_tpmi_dh_parent, { "TPMI_DH_PARENT", "tpm.handle.TPMI_DH_PARENT", FT_UINT32, BASE_HEX, VALS(hierarhies), 0x0, NULL, HFILL }}, { &hf_tpmi_dh_pcr, { "TPMI_DH_PCR", "tpm.handle.TPMI_DH_PCR", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_tpmi_sh_auth_session, { "TPMI_SH_AUTH_SESSION", "tpm.handle.TPMI_SH_AUTH_SESSION", FT_UINT32, BASE_HEX, VALS(handles), 0x0, NULL, HFILL }}, { &hf_tpmi_rh_act, { "TPMI_RH_ACT", "tpm.handle.TPMI_RH_ACT", FT_UINT32, BASE_HEX, VALS(handles), 0x0, NULL, HFILL }}, { &hf_tpmi_rh_hierarhy, { "TPMI_RH_HIERARCHY", "tpm.handle.TPMI_RH_HIERARCHY", FT_UINT32, BASE_HEX, VALS(hierarhies), 0x0, NULL, HFILL }}, { &hf_tpmi_rh_provision, { "TPMI_RH_PROVISION", "tpm.handle.TPMI_RH_PROVISION", FT_UINT32, BASE_HEX, VALS(handles), 0x0, NULL, HFILL }}, { &hf_tpmi_rh_platform, { "TPMI_RH_PLATFORM", "tpm.handle.TPMI_RH_PLATFORM", FT_UINT32, BASE_HEX, VALS(handles), 0x0, NULL, HFILL }}, { &hf_tpmi_rh_clear, { "TPMI_RH_CLEAR", "tpm.handle.TPMI_RH_CLEAR", FT_UINT32, BASE_HEX, VALS(handles), 0x0, NULL, HFILL }}, { &hf_tpmi_rh_hierarhy_auth, { "TPMI_RH_HIERARCHY_AUTH", "tpm.handle.TPMI_RH_HIERARCHY_AUTH", FT_UINT32, BASE_HEX, VALS(handles), 0x0, NULL, HFILL }}, { &hf_tpmi_rh_nv_auth, { "TPMI_RH_NV_AUTH", "tpm.handle.TPMI_RH_NV_AUTH", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_tpmi_rh_nv_index, { "TPMI_RH_NV_INDEX", "tpm.handle.TPMI_RH_NV_INDEX", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_tpmi_rh_lockout, { "TPMI_RH_LOCKOUT", "tpm.handle.TPMI_RH_LOCKOUT", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_tpmi_ht_handle, { "TPM_HANDLE", "tpm.handle.TPM_HANDLE", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_tpmi_rh_endorsment, { "TPMI_RH_ENDORSEMENT", "tpm.handle.TPMI_RH_ENDORSEMENT", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_auth_area_size, { "AUTHAREA SIZE", "tpm.autharea_size", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_session_nonce_size, { "AUTH NONCE SIZE", "tpm.auth_nonce_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_session_nonce, { "AUTH NONCE", "tpm.auth_nonce", FT_BYTES, BASE_ALLOW_ZERO | BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_session_attribs_cont, { "SESSION_CONTINUESESSION", "tpm.auth_attribs_cont", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TPMA_SESSION_CONTINUESESSION, NULL, HFILL }}, { &hf_session_attribs_auditex, { "SESSION_AUDITEXCLUSIVE", "tpm.auth_attribs_auditex", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TPMA_SESSION_AUDITEXCLUSIVE, NULL, HFILL }}, { &hf_session_attribs_auditreset, { "SESSION_AUDITRESET", "tpm.auth_attribs_auditreset", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TPMA_SESSION_AUDITRESET, NULL, HFILL }}, { &hf_session_attribs_res, { "SESSION_RESERVED", "tpm.auth_attribs_res", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TPMA_SESSION_RESERVED1_MASK, NULL, HFILL }}, { &hf_session_attribs_decrypt, { "SESSION_DECRYPT", "tpm.auth_attribs_decrypt", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TPMA_SESSION_DECRYPT, NULL, HFILL }}, { &hf_session_attribs_encrypt, { "SESSION_ENCRYPT", "tpm.auth_attribs_encrypt", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TPMA_SESSION_ENCRYPT, NULL, HFILL }}, { &hf_session_attribs_audit, { "SESSION_AUDIT", "tpm.auth_attribs_audit", FT_BOOLEAN, 8, TFS(&tfs_set_notset), TPMA_SESSION_AUDIT, NULL, HFILL }}, { &hf_session_auth_size, { "SESSION AUTH SIZE", "tpm.session_auth_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_session_auth, { "SESSION AUTH", "tpm.session_auth", FT_BYTES, BASE_ALLOW_ZERO | BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_resp_param_size, { "RESP PARAM SIZE", "tpm.resp_param_size", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_encrypted_secret_size, { "ENCRYPTED SECRET SIZE", "tpm.enc_secret_size", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_encrypted_secret, { "ENCRYPTED SECRET", "tpm.enc_secret", FT_BYTES, BASE_ALLOW_ZERO | BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_session_type, { "SESSION TYPE", "tpm.session_type", FT_UINT8, BASE_HEX, VALS(session_type), 0x0, NULL, HFILL }}, { &hf_alg_sym, { "SYM ALG", "tpm.sym_alg", FT_UINT16, BASE_HEX, VALS(algs), 0x0, NULL, HFILL }}, { &hf_alg_sym_mode, { "SYM ALG MODE", "tpm.sym_alg_mode", FT_UINT16, BASE_HEX, VALS(algs), 0x0, NULL, HFILL }}, { &hf_alg_sym_keybits, { "SYM ALG MODE", "tpm.sym_alg_keybits", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_alg_hash, { "ALG HASH", "tpm.alg_hash", FT_UINT16, BASE_HEX, VALS(algs), 0x0, NULL, HFILL }}, { &hf_tpm_priv_size, { "TPM PRIVATE SIZE", "tpm.private_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_priv, { "TPM PRIVATE", "tpm.private", FT_BYTES, BASE_ALLOW_ZERO | BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_pub_size, { "TPM PUBLIC SIZE", "tpm.public_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_pub, { "TPM PUBLIC", "tpm.public", FT_BYTES, BASE_ALLOW_ZERO | BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_name_size, { "TPM NAME SIZE", "tpm.name_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_name, { "TPM NAME", "tpm.name", FT_BYTES, BASE_ALLOW_ZERO | BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_sensitive_crate_size, { "TPM SENSITIVE CREATE SIZE", "tpm.sensitive_create_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_sensitive_crate, { "TPM SENSITIVE CREATE", "tpm.sensitive_create", FT_BYTES, BASE_ALLOW_ZERO | BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_template_size, { "TPM TEMPLATE SIZE", "tpm.template_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_template, { "TPM TEMPLATE", "tpm.template", FT_BYTES, BASE_ALLOW_ZERO | BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_data_size, { "TPM DATA SIZE", "tpm.data_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_data, { "TPM DATA", "tpm.data", FT_BYTES, BASE_ALLOW_ZERO | BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_creation_data_size, { "TPM CREATION DATA SIZE", "tpm.creation_data_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_creation_data, { "TPM CREATION DATA", "tpm.creation_data", FT_BYTES, BASE_ALLOW_ZERO | BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_digest_size, { "TPM DIGEST SIZE", "tpm.digest_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_tpm_digest, { "TPM DIGEST", "tpm.digest", FT_BYTES, BASE_ALLOW_ZERO | BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_params, { "RESPONSE PARAMS", "tpm.PARAMS", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, }; static int *ett[] = { &ett_tpm, &ett_tpm_header, &ett_tpm_response_header, &ett_tpm_handles, &ett_tpm_auth, &ett_tpm_params, &ett_tpm_attrib }; static ei_register_info ei[] = { { &ei_invalid_tag, { "tpm.invalid_tag", PI_PROTOCOL, PI_ERROR, "Invalid Header Tag", EXPFILL }}, { &ei_invalid_auth_size, { "tpm.invalid_auth_size", PI_PROTOCOL, PI_ERROR, "Auth area size too small", EXPFILL }}, { &ei_invalid_num_sessions, { "tpm.invalid_num_sessions", PI_PROTOCOL, PI_ERROR, "Maximum number of sessions exceeded", EXPFILL }}, }; static void tpm_init(void) { cmd_tree = wmem_tree_new(wmem_file_scope()); } void proto_register_tpm20(void) { proto_tpm20 = proto_register_protocol("TPM2.0 Protocol", "TPM2.0", "tpm"); proto_register_field_array(proto_tpm20, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); expert_module_t* expert_mod = expert_register_protocol(proto_tpm20); expert_register_field_array(expert_mod, ei, array_length(ei)); register_init_routine(tpm_init); tpm20_handle = register_dissector("tpm", dissect_tpm20, proto_tpm20); } void proto_reg_handoff_tpm20(void) { dissector_add_uint_range_with_preference("tcp.port", TCP_TPM_PORTS, tpm20_handle); } /* * Editor modelines - https://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 8 * tab-width: 8 * indent-tabs-mode: t * End: * * vi: set shiftwidth=8 tabstop=8 noexpandtab: * :indentSize=8:tabSize=8:noTabs=false: */