/****************************************************************************** * * Copyright (C) 2003-2012 Broadcom Corporation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ******************************************************************************/ #include "bt_target.h" #if SMP_INCLUDED == TRUE #include #include "smp_int.h" const char *const smp_state_name [] = { "SMP_STATE_IDLE", "SMP_STATE_WAIT_APP_RSP", "SMP_STATE_SEC_REQ_PENDING", "SMP_STATE_PAIR_REQ_RSP", "SMP_STATE_WAIT_CONFIRM", "SMP_STATE_CONFIRM", "SMP_STATE_RAND", "SMP_STATE_PUBLIC_KEY_EXCH", "SMP_STATE_SEC_CONN_PHS1_START", "SMP_STATE_WAIT_COMMITMENT", "SMP_STATE_WAIT_NONCE", "SMP_STATE_SEC_CONN_PHS2_START", "SMP_STATE_WAIT_DHK_CHECK", "SMP_STATE_DHK_CHECK", "SMP_STATE_ENCRYPTION_PENDING", "SMP_STATE_BOND_PENDING", "SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA", "SMP_STATE_MAX" }; const char *const smp_event_name [] = { "PAIRING_REQ_EVT", "PAIRING_RSP_EVT", "CONFIRM_EVT", "RAND_EVT", "PAIRING_FAILED_EVT", "ENC_INFO_EVT", "MASTER_ID_EVT", "ID_INFO_EVT", "ID_ADDR_EVT", "SIGN_INFO_EVT", "SECURITY_REQ_EVT", "PAIR_PUBLIC_KEY_EVT", "PAIR_DHKEY_CHECK_EVT", "PAIR_KEYPRESS_NOTIFICATION_EVT", "PAIR_COMMITMENT_EVT", "KEY_READY_EVT", "ENCRYPTED_EVT", "L2CAP_CONN_EVT", "L2CAP_DISCONN_EVT", "API_IO_RSP_EVT", "API_SEC_GRANT_EVT", "TK_REQ_EVT", "AUTH_CMPL_EVT", "ENC_REQ_EVT", "BOND_REQ_EVT", "DISCARD_SEC_REQ_EVT", "PUBLIC_KEY_EXCHANGE_REQ_EVT", "LOCAL_PUBLIC_KEY_CRTD_EVT", "BOTH_PUBLIC_KEYS_RCVD_EVT", "SEC_CONN_DHKEY_COMPLETE_EVT", "HAVE_LOCAL_NONCE_EVT", "SEC_CONN_PHASE1_CMPLT_EVT", "SEC_CONN_CALC_NC_EVT", "SEC_CONN_DISPLAY_NC_EVT", "SEC_CONN_OK_EVT", "SEC_CONN_2_DHCK_CHECKS_PRESENT_EVT", "SEC_CONN_KEY_READY_EVT", "KEYPRESS_NOTIFICATION_EVT", "SEC_CONN_OOB_DATA_EVT", "CREATE_LOCAL_SEC_CONN_OOB_DATA_EVT", "OUT_OF_RANGE_EVT" }; const char *smp_get_event_name(tSMP_EVENT event); const char *smp_get_state_name(tSMP_STATE state); #define SMP_SM_IGNORE 0 #define SMP_NUM_ACTIONS 2 #define SMP_SME_NEXT_STATE 2 #define SMP_SM_NUM_COLS 3 typedef const UINT8(*tSMP_SM_TBL)[SMP_SM_NUM_COLS]; enum { SMP_PROC_SEC_REQ, SMP_SEND_PAIR_REQ, SMP_SEND_PAIR_RSP, SMP_SEND_CONFIRM, SMP_SEND_PAIR_FAIL, SMP_SEND_RAND, SMP_SEND_ENC_INFO, SMP_SEND_ID_INFO, SMP_SEND_LTK_REPLY, SMP_PROC_PAIR_CMD, SMP_PROC_PAIR_FAIL, SMP_PROC_CONFIRM, SMP_PROC_RAND, SMP_PROC_ENC_INFO, SMP_PROC_MASTER_ID, SMP_PROC_ID_INFO, SMP_PROC_ID_ADDR, SMP_PROC_SRK_INFO, SMP_PROC_SEC_GRANT, SMP_PROC_SL_KEY, SMP_PROC_COMPARE, SMP_PROC_IO_RSP, SMP_GENERATE_COMPARE, SMP_GENERATE_CONFIRM, SMP_GENERATE_STK, SMP_KEY_DISTRIBUTE, SMP_START_ENC, SMP_PAIRING_CMPL, SMP_DECIDE_ASSO_MODEL, SMP_SEND_APP_CBACK, SMP_CHECK_AUTH_REQ, SMP_PAIR_TERMINATE, SMP_ENC_CMPL, SMP_PROC_DISCARD, SMP_CREATE_PRIVATE_KEY, SMP_USE_OOB_PRIVATE_KEY, SMP_SEND_PAIR_PUBLIC_KEY, SMP_PROCESS_PAIR_PUBLIC_KEY, SMP_HAVE_BOTH_PUBLIC_KEYS, SMP_START_SEC_CONN_PHASE1, SMP_PROCESS_LOCAL_NONCE, SMP_SEND_COMMITMENT, SMP_PROCESS_PAIRING_COMMITMENT, SMP_PROCESS_PEER_NONCE, SMP_CALCULATE_LOCAL_DHKEY_CHECK, SMP_SEND_DHKEY_CHECK, SMP_PROCESS_DHKEY_CHECK, SMP_CALCULATE_PEER_DHKEY_CHECK, SMP_MATCH_DHKEY_CHECKS, SMP_CALCULATE_NUMERIC_COMPARISON_DISPLAY_NUMBER, SMP_MOVE_TO_SEC_CONN_PHASE2, SMP_PH2_DHKEY_CHECKS_ARE_PRESENT, SMP_WAIT_FOR_BOTH_PUBLIC_KEYS, SMP_START_PASSKEY_VERIFICATION, SMP_SEND_KEYPRESS_NOTIFICATION, SMP_PROCESS_KEYPRESS_NOTIFICATION, SMP_PROCESS_SECURE_CONNECTION_OOB_DATA, SMP_SET_LOCAL_OOB_KEYS, SMP_SET_LOCAL_OOB_RAND_COMMITMENT, SMP_IDLE_TERMINATE, SMP_FAST_CONN_PARAM, SMP_SM_NO_ACTION }; static const tSMP_ACT smp_sm_action[] = { smp_proc_sec_req, smp_send_pair_req, smp_send_pair_rsp, smp_send_confirm, smp_send_pair_fail, smp_send_rand, smp_send_enc_info, smp_send_id_info, smp_send_ltk_reply, smp_proc_pair_cmd, smp_proc_pair_fail, smp_proc_confirm, smp_proc_rand, smp_proc_enc_info, smp_proc_master_id, smp_proc_id_info, smp_proc_id_addr, smp_proc_srk_info, smp_proc_sec_grant, smp_proc_sl_key, smp_proc_compare, smp_process_io_response, smp_generate_compare, smp_generate_srand_mrand_confirm, smp_generate_stk, smp_key_distribution, smp_start_enc, smp_pairing_cmpl, smp_decide_association_model, smp_send_app_cback, smp_check_auth_req, smp_pair_terminate, smp_enc_cmpl, smp_proc_discard, smp_create_private_key, smp_use_oob_private_key, smp_send_pair_public_key, smp_process_pairing_public_key, smp_both_have_public_keys, smp_start_secure_connection_phase1, smp_process_local_nonce, smp_send_commitment, smp_process_pairing_commitment, smp_process_peer_nonce, smp_calculate_local_dhkey_check, smp_send_dhkey_check, smp_process_dhkey_check, smp_calculate_peer_dhkey_check, smp_match_dhkey_checks, smp_calculate_numeric_comparison_display_number, smp_move_to_secure_connections_phase2, smp_phase_2_dhkey_checks_are_present, smp_wait_for_both_public_keys, smp_start_passkey_verification, smp_send_keypress_notification, smp_process_keypress_notification, smp_process_secure_connection_oob_data, smp_set_local_oob_keys, smp_set_local_oob_random_commitment, smp_idle_terminate, smp_fast_conn_param }; /************ SMP Master FSM State/Event Indirection Table **************/ static const UINT8 smp_master_entry_map[][SMP_STATE_MAX] = { /* state name: Idle WaitApp SecReq Pair Wait Confirm Rand PublKey SCPhs1 Wait Wait SCPhs2 Wait DHKChk Enc Bond CrLocSc Rsp Pend ReqRsp Cfm Exch Strt Cmtm Nonce Strt DHKChk Pend Pend OobData */ /* PAIR_REQ */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* PAIR_RSP */{ 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* CONFIRM */{ 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* RAND */{ 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 }, /* PAIR_FAIL */{ 0, 0x81, 0, 0x81, 0x81,0x81, 0x81,0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0, 0x81, 0 }, /* ENC_INFO */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 }, /* MASTER_ID */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0 }, /* ID_INFO */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0 }, /* ID_ADDR */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0 }, /* SIGN_INFO */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0 }, /* SEC_REQ */{ 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* PAIR_PUBLIC_KEY */{ 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* PAIR_DHKEY_CHCK */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0 }, /* PAIR_KEYPR_NOTIF */{ 0, 8, 0, 0, 0, 0, 0, 0, 5, 2, 0, 0, 0, 0, 0, 0, 0 }, /* PAIR_COMMITM */{ 0, 0, 0, 0, 0, 0, 0, 0, 6, 1, 0, 0, 0, 0, 0, 0, 0 }, /* KEY_READY */{ 0, 3, 0, 3, 1, 0, 2, 0, 4, 0, 0, 0, 0, 0, 1, 6, 0 }, /* ENC_CMPL */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0 }, /* L2C_CONN */{ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* L2C_DISC */{ 3, 0x83, 0, 0x83, 0x83,0x83, 0x83,0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0 }, /* IO_RSP */{ 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* SEC_GRANT */{ 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* TK_REQ */{ 0, 0, 0, 2, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0 }, /* AUTH_CMPL */{ 4, 0x82, 0, 0x82, 0x82,0x82, 0x82,0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0 }, /* ENC_REQ */{ 0, 4, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0 }, /* BOND_REQ */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0 }, /* DISCARD_SEC_REQ */{ 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0 }, /* PUBL_KEY_EXCH_REQ */{ 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* LOC_PUBL_KEY_CRTD */{ 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1 }, /* BOTH_PUBL_KEYS_RCVD */{ 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* SC_DHKEY_CMPLT */{ 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0 }, /* HAVE_LOC_NONCE */{ 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 2 }, /* SC_PHASE1_CMPLT */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 }, /* SC_CALC_NC */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0 }, /* SC_DSPL_NC */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0 }, /* SC_NC_OK */{ 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* SC_2_DHCK_CHKS_PRES */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* SC_KEY_READY */{ 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0 }, /* KEYPR_NOTIF */{ 0, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* SC_OOB_DATA */{ 0, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* CR_LOC_SC_OOB_DATA */{ 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, }; static const UINT8 smp_all_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* PAIR_FAIL */ {SMP_PROC_PAIR_FAIL, SMP_PAIRING_CMPL, SMP_STATE_IDLE}, /* AUTH_CMPL */ {SMP_SEND_PAIR_FAIL, SMP_PAIRING_CMPL, SMP_STATE_IDLE}, /* L2C_DISC */ {SMP_PAIR_TERMINATE, SMP_SM_NO_ACTION, SMP_STATE_IDLE} }; static const UINT8 smp_master_idle_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* L2C_CONN */ {SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, /* SEC_REQ */ {SMP_PROC_SEC_REQ, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_APP_RSP}, /* L2C_DISC */ {SMP_IDLE_TERMINATE, SMP_SM_NO_ACTION, SMP_STATE_IDLE}, /* AUTH_CMPL */ {SMP_PAIRING_CMPL, SMP_SM_NO_ACTION, SMP_STATE_IDLE} /* CR_LOC_SC_OOB_DATA */ ,{SMP_CREATE_PRIVATE_KEY, SMP_SM_NO_ACTION, SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA} }; static const UINT8 smp_master_wait_for_app_response_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* SEC_GRANT */ {SMP_PROC_SEC_GRANT, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_APP_RSP}, /* IO_RSP */ {SMP_SEND_PAIR_REQ, SMP_FAST_CONN_PARAM, SMP_STATE_PAIR_REQ_RSP}, /* TK ready */ /* KEY_READY */ {SMP_GENERATE_CONFIRM, SMP_SM_NO_ACTION, SMP_STATE_WAIT_CONFIRM}, /* start enc mode setup */ /* ENC_REQ */ { SMP_START_ENC, SMP_FAST_CONN_PARAM, SMP_STATE_ENCRYPTION_PENDING}, /* DISCARD_SEC_REQ */ { SMP_PROC_DISCARD, SMP_SM_NO_ACTION, SMP_STATE_IDLE} /* user confirms NC 'OK', i.e. phase 1 is completed */ /* SC_NC_OK */,{ SMP_MOVE_TO_SEC_CONN_PHASE2, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS2_START}, /* user-provided passkey is rcvd */ /* SC_KEY_READY */ { SMP_START_PASSKEY_VERIFICATION, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START}, /* PAIR_KEYPR_NOTIF */ { SMP_PROCESS_KEYPRESS_NOTIFICATION, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_APP_RSP}, /* KEYPR_NOTIF */ { SMP_SEND_KEYPRESS_NOTIFICATION, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, /* SC_OOB_DATA */ { SMP_USE_OOB_PRIVATE_KEY, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH} }; static const UINT8 smp_master_pair_request_response_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* PAIR_RSP */ { SMP_PROC_PAIR_CMD, SMP_SM_NO_ACTION, SMP_STATE_PAIR_REQ_RSP}, /* TK_REQ */ { SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, /* TK ready */ /* KEY_READY */{ SMP_GENERATE_CONFIRM, SMP_SM_NO_ACTION, SMP_STATE_WAIT_CONFIRM} /* PUBL_KEY_EXCH_REQ */,{ SMP_CREATE_PRIVATE_KEY, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH} }; static const UINT8 smp_master_wait_for_confirm_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* KEY_READY*/ {SMP_SEND_CONFIRM, SMP_SM_NO_ACTION, SMP_STATE_CONFIRM}/* CONFIRM ready */ }; static const UINT8 smp_master_confirm_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* CONFIRM */ { SMP_PROC_CONFIRM, SMP_SEND_RAND, SMP_STATE_RAND} }; static const UINT8 smp_master_rand_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* RAND */ { SMP_PROC_RAND, SMP_GENERATE_COMPARE, SMP_STATE_RAND}, /* KEY_READY*/ { SMP_PROC_COMPARE, SMP_SM_NO_ACTION, SMP_STATE_RAND}, /* Compare ready */ /* ENC_REQ */ { SMP_GENERATE_STK, SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING} }; static const UINT8 smp_master_public_key_exchange_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* LOC_PUBL_KEY_CRTD */{ SMP_SEND_PAIR_PUBLIC_KEY, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH}, /* PAIR_PUBLIC_KEY */{ SMP_PROCESS_PAIR_PUBLIC_KEY, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH}, /* BOTH_PUBL_KEYS_RCVD */{ SMP_HAVE_BOTH_PUBLIC_KEYS, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START}, }; static const UINT8 smp_master_sec_conn_phs1_start_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* SC_DHKEY_CMPLT */{ SMP_START_SEC_CONN_PHASE1, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START}, /* HAVE_LOC_NONCE */{ SMP_PROCESS_LOCAL_NONCE, SMP_SM_NO_ACTION, SMP_STATE_WAIT_COMMITMENT}, /* TK_REQ */{ SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, /* SMP_MODEL_SEC_CONN_PASSKEY_DISP model, passkey is sent up to display,*/ /* It's time to start commitment calculation */ /* KEY_READY */{ SMP_START_PASSKEY_VERIFICATION, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START}, /* PAIR_KEYPR_NOTIF */{ SMP_PROCESS_KEYPRESS_NOTIFICATION, SMP_SEND_APP_CBACK, SMP_STATE_SEC_CONN_PHS1_START}, /* PAIR_COMMITM */{ SMP_PROCESS_PAIRING_COMMITMENT, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START}, }; static const UINT8 smp_master_wait_commitment_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* PAIR_COMMITM */{ SMP_PROCESS_PAIRING_COMMITMENT, SMP_SEND_RAND, SMP_STATE_WAIT_NONCE}, /* PAIR_KEYPR_NOTIF */{ SMP_PROCESS_KEYPRESS_NOTIFICATION, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_COMMITMENT}, }; static const UINT8 smp_master_wait_nonce_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* peer nonce is received */ /* RAND */{SMP_PROC_RAND, SMP_PROCESS_PEER_NONCE, SMP_STATE_SEC_CONN_PHS2_START}, /* NC model, time to calculate number for NC */ /* SC_CALC_NC */{SMP_CALCULATE_NUMERIC_COMPARISON_DISPLAY_NUMBER, SMP_SM_NO_ACTION, SMP_STATE_WAIT_NONCE}, /* NC model, time to display calculated number for NC to the user */ /* SC_DSPL_NC */{SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, }; static const UINT8 smp_master_sec_conn_phs2_start_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* SC_PHASE1_CMPLT */{SMP_CALCULATE_LOCAL_DHKEY_CHECK, SMP_SEND_DHKEY_CHECK, SMP_STATE_WAIT_DHK_CHECK}, }; static const UINT8 smp_master_wait_dhk_check_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* PAIR_DHKEY_CHCK */{SMP_PROCESS_DHKEY_CHECK, SMP_CALCULATE_PEER_DHKEY_CHECK, SMP_STATE_DHK_CHECK}, }; static const UINT8 smp_master_dhk_check_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* locally calculated peer dhkey check is ready -> compare it withs DHKey Check actually received from peer */ /* SC_KEY_READY */{SMP_MATCH_DHKEY_CHECKS, SMP_SM_NO_ACTION, SMP_STATE_DHK_CHECK}, /* locally calculated peer dhkey check is ready -> calculate STK, go to sending */ /* HCI LE Start Encryption command */ /* ENC_REQ */{SMP_GENERATE_STK, SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING}, }; static const UINT8 smp_master_enc_pending_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* STK ready */ /* KEY_READY */ { SMP_START_ENC, SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING}, /* ENCRYPTED */ { SMP_CHECK_AUTH_REQ, SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING}, /* BOND_REQ */ { SMP_KEY_DISTRIBUTE, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING} }; static const UINT8 smp_master_bond_pending_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* ENC_INFO */ { SMP_PROC_ENC_INFO, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}, /* ID_INFO */ { SMP_PROC_ID_INFO, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}, /* SIGN_INFO*/ { SMP_PROC_SRK_INFO, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}, /* MASTER_ID*/ { SMP_PROC_MASTER_ID, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}, /* ID_ADDR */ { SMP_PROC_ID_ADDR, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}, /* KEY_READY */{SMP_SEND_ENC_INFO, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING} /* LTK ready */ }; static const UINT8 smp_master_create_local_sec_conn_oob_data[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* LOC_PUBL_KEY_CRTD */ {SMP_SET_LOCAL_OOB_KEYS, SMP_SM_NO_ACTION, SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA}, /* HAVE_LOC_NONCE */ {SMP_SET_LOCAL_OOB_RAND_COMMITMENT, SMP_SM_NO_ACTION, SMP_STATE_IDLE} }; /************ SMP Slave FSM State/Event Indirection Table **************/ static const UINT8 smp_slave_entry_map[][SMP_STATE_MAX] = { /* state name: Idle WaitApp SecReq Pair Wait Confirm Rand PublKey SCPhs1 Wait Wait SCPhs2 Wait DHKChk Enc Bond CrLocSc Rsp Pend ReqRsp Cfm Exch Strt Cmtm Nonce Strt DHKChk Pend Pend OobData */ /* PAIR_REQ */{ 2, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* PAIR_RSP */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* CONFIRM */{ 0, 4, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* RAND */{ 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 }, /* PAIR_FAIL */{ 0, 0x81, 0x81, 0x81, 0x81,0x81, 0x81,0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0, 0 }, /* ENC_INFO */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0 }, /* MASTER_ID */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0 }, /* ID_INFO */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0 }, /* ID_ADDR */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0 }, /* SIGN_INFO */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0 }, /* SEC_REQ */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* PAIR_PUBLIC_KEY */{ 0, 0, 0, 5, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* PAIR_DHKEY_CHCK */{ 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 2, 0, 0, 0 }, /* PAIR_KEYPR_NOTIF */{ 0, 9, 0, 0, 0, 0, 0, 0, 5, 2, 0, 0, 0, 0, 0, 0, 0 }, /* PAIR_COMMITM */{ 0, 8, 0, 0, 0, 0, 0, 0, 6, 1, 0, 0, 0, 0, 0, 0, 0 }, /* KEY_READY */{ 0, 3, 0, 3, 2, 2, 1, 0, 4, 0, 0, 0, 0, 0, 2, 1, 0 }, /* ENC_CMPL */{ 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0 }, /* L2C_CONN */{ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* L2C_DISC */{ 0, 0x83, 0x83, 0x83, 0x83,0x83, 0x83,0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0 }, /* IO_RSP */{ 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* SEC_GRANT */{ 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* TK_REQ */{ 0, 0, 0, 2, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0 }, /* AUTH_CMPL */{ 0, 0x82, 0x82, 0x82, 0x82,0x82, 0x82,0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0 }, /* ENC_REQ */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 }, /* BOND_REQ */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0 }, /* DISCARD_SEC_REQ */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* PUBL_KEY_EXCH_REQ */{ 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* LOC_PUBL_KEY_CRTD */{ 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1 }, /* BOTH_PUBL_KEYS_RCVD */{ 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* SC_DHKEY_CMPLT */{ 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0 }, /* HAVE_LOC_NONCE */{ 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 2 }, /* SC_PHASE1_CMPLT */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 }, /* SC_CALC_NC */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0 }, /* SC_DSPL_NC */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0 }, /* SC_NC_OK */{ 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* SC_2_DHCK_CHKS_PRES */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0 }, /* SC_KEY_READY */{ 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0 }, /* KEYPR_NOTIF */{ 0, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* SC_OOB_DATA */{ 0, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* CR_LOC_SC_OOB_DATA */{ 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, }; static const UINT8 smp_slave_idle_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* L2C_CONN */ {SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, /* PAIR_REQ */ {SMP_PROC_PAIR_CMD, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_APP_RSP} /* CR_LOC_SC_OOB_DATA */ ,{SMP_CREATE_PRIVATE_KEY, SMP_SM_NO_ACTION, SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA} }; static const UINT8 smp_slave_wait_for_app_response_table [][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* IO_RSP */ {SMP_PROC_IO_RSP, SMP_FAST_CONN_PARAM, SMP_STATE_PAIR_REQ_RSP}, /* SEC_GRANT */ {SMP_PROC_SEC_GRANT, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_APP_RSP}, /* TK ready */ /* KEY_READY */ {SMP_PROC_SL_KEY, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, /* CONFIRM */ {SMP_PROC_CONFIRM, SMP_SM_NO_ACTION, SMP_STATE_CONFIRM} /* DHKey Check from master is received before phase 1 is completed - race */ /* PAIR_DHKEY_CHCK */,{SMP_PROCESS_DHKEY_CHECK, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, /* user confirms NC 'OK', i.e. phase 1 is completed */ /* SC_NC_OK */ {SMP_MOVE_TO_SEC_CONN_PHASE2, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS2_START}, /* user-provided passkey is rcvd */ /* SC_KEY_READY */ {SMP_START_PASSKEY_VERIFICATION, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START}, /* PAIR_COMMITM */ {SMP_PROCESS_PAIRING_COMMITMENT, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, /* PAIR_KEYPR_NOTIF */ {SMP_PROCESS_KEYPRESS_NOTIFICATION, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_APP_RSP}, /* KEYPR_NOTIF */ {SMP_SEND_KEYPRESS_NOTIFICATION, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, /* SC_OOB_DATA */ {SMP_SEND_PAIR_RSP, SMP_SM_NO_ACTION, SMP_STATE_PAIR_REQ_RSP}, }; static const UINT8 smp_slave_sec_request_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* PAIR_REQ */{SMP_PROC_PAIR_CMD, SMP_SM_NO_ACTION, SMP_STATE_PAIR_REQ_RSP}, /* ENCRYPTED*/{SMP_ENC_CMPL, SMP_SM_NO_ACTION, SMP_STATE_PAIR_REQ_RSP}, }; static const UINT8 smp_slave_pair_request_response_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* CONFIRM */ {SMP_PROC_CONFIRM, SMP_SM_NO_ACTION, SMP_STATE_CONFIRM}, /* TK_REQ */ {SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, /* TK/Confirm ready */ /* KEY_READY */{SMP_PROC_SL_KEY, SMP_SM_NO_ACTION, SMP_STATE_PAIR_REQ_RSP} /* PUBL_KEY_EXCH_REQ */,{ SMP_CREATE_PRIVATE_KEY, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH}, /* PAIR_PUBLIC_KEY */ { SMP_PROCESS_PAIR_PUBLIC_KEY, SMP_SM_NO_ACTION, SMP_STATE_PAIR_REQ_RSP}, }; static const UINT8 smp_slave_wait_confirm_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* CONFIRM */ {SMP_PROC_CONFIRM, SMP_SEND_CONFIRM, SMP_STATE_CONFIRM}, /* KEY_READY*/ {SMP_PROC_SL_KEY, SMP_SM_NO_ACTION, SMP_STATE_WAIT_CONFIRM} }; static const UINT8 smp_slave_confirm_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* RAND */ {SMP_PROC_RAND, SMP_GENERATE_COMPARE, SMP_STATE_RAND}, /* TK/Confirm ready */ /* KEY_READY*/ {SMP_PROC_SL_KEY, SMP_SM_NO_ACTION, SMP_STATE_CONFIRM} }; static const UINT8 smp_slave_rand_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* KEY_READY */ {SMP_PROC_COMPARE, SMP_SM_NO_ACTION, SMP_STATE_RAND}, /* compare match */ /* RAND */ {SMP_SEND_RAND, SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING} }; static const UINT8 smp_slave_public_key_exch_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* LOC_PUBL_KEY_CRTD */{ SMP_WAIT_FOR_BOTH_PUBLIC_KEYS, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH}, /* PAIR_PUBLIC_KEY */{ SMP_PROCESS_PAIR_PUBLIC_KEY, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH}, /* BOTH_PUBL_KEYS_RCVD */{ SMP_HAVE_BOTH_PUBLIC_KEYS, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START}, }; static const UINT8 smp_slave_sec_conn_phs1_start_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* SC_DHKEY_CMPLT */{ SMP_START_SEC_CONN_PHASE1, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START}, /* HAVE_LOC_NONCE */{ SMP_PROCESS_LOCAL_NONCE,SMP_SM_NO_ACTION, SMP_STATE_WAIT_COMMITMENT}, /* TK_REQ */{ SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, /* SMP_MODEL_SEC_CONN_PASSKEY_DISP model, passkey is sent up to display, it's time to start */ /* commitment calculation */ /* KEY_READY */{ SMP_START_PASSKEY_VERIFICATION, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START}, /* PAIR_KEYPR_NOTIF */{ SMP_PROCESS_KEYPRESS_NOTIFICATION,SMP_SEND_APP_CBACK, SMP_STATE_SEC_CONN_PHS1_START}, /*COMMIT*/{SMP_PROCESS_PAIRING_COMMITMENT, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START}, }; static const UINT8 smp_slave_wait_commitment_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* PAIR_COMMITM */{SMP_PROCESS_PAIRING_COMMITMENT, SMP_SEND_COMMITMENT, SMP_STATE_WAIT_NONCE}, /* PAIR_KEYPR_NOTIF */{SMP_PROCESS_KEYPRESS_NOTIFICATION, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_COMMITMENT}, }; static const UINT8 smp_slave_wait_nonce_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* peer nonce is received */ /* RAND */{SMP_PROC_RAND, SMP_PROCESS_PEER_NONCE, SMP_STATE_SEC_CONN_PHS2_START}, /* NC model, time to calculate number for NC */ /* SC_CALC_NC */{SMP_CALCULATE_NUMERIC_COMPARISON_DISPLAY_NUMBER, SMP_SM_NO_ACTION, SMP_STATE_WAIT_NONCE}, /* NC model, time to display calculated number for NC to the user */ /* SC_DSPL_NC */{SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP}, }; static const UINT8 smp_slave_sec_conn_phs2_start_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* SC_PHASE1_CMPLT */{SMP_CALCULATE_LOCAL_DHKEY_CHECK, SMP_PH2_DHKEY_CHECKS_ARE_PRESENT, SMP_STATE_WAIT_DHK_CHECK}, /* DHKey Check from master is received before slave DHKey calculation is completed - race */ /* PAIR_DHKEY_CHCK */{SMP_PROCESS_DHKEY_CHECK, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS2_START}, }; static const UINT8 smp_slave_wait_dhk_check_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* PAIR_DHKEY_CHCK */{SMP_PROCESS_DHKEY_CHECK, SMP_CALCULATE_PEER_DHKEY_CHECK, SMP_STATE_DHK_CHECK}, /* DHKey Check from master was received before slave came to this state */ /* SC_2_DHCK_CHKS_PRES */{SMP_CALCULATE_PEER_DHKEY_CHECK, SMP_SM_NO_ACTION, SMP_STATE_DHK_CHECK}, }; static const UINT8 smp_slave_dhk_check_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* locally calculated peer dhkey check is ready -> compare it withs DHKey Check */ /* actually received from peer */ /* SC_KEY_READY */{SMP_MATCH_DHKEY_CHECKS, SMP_SM_NO_ACTION, SMP_STATE_DHK_CHECK}, /* dhkey checks match -> send local dhkey check to master, go to wait for HCI LE */ /* Long Term Key Request Event */ /* PAIR_DHKEY_CHCK */{SMP_SEND_DHKEY_CHECK, SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING}, }; static const UINT8 smp_slave_enc_pending_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* ENC_REQ */ {SMP_GENERATE_STK, SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING}, /* STK ready */ /* KEY_READY */ {SMP_SEND_LTK_REPLY, SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING}, /* ENCRYPTED */ {SMP_CHECK_AUTH_REQ, SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING}, /* BOND_REQ */ {SMP_KEY_DISTRIBUTE, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING} }; static const UINT8 smp_slave_bond_pending_table[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* LTK ready */ /* KEY_READY */{ SMP_SEND_ENC_INFO, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}, /* rev SRK */ /* SIGN_INFO */{ SMP_PROC_SRK_INFO, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}, /* ENC_INFO */ { SMP_PROC_ENC_INFO, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}, /* ID_INFO */ { SMP_PROC_ID_INFO, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}, /* MASTER_ID*/ { SMP_PROC_MASTER_ID, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}, /* ID_ADDR */ { SMP_PROC_ID_ADDR, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING} }; static const UINT8 smp_slave_create_local_sec_conn_oob_data[][SMP_SM_NUM_COLS] = { /* Event Action Next State */ /* LOC_PUBL_KEY_CRTD */ {SMP_SET_LOCAL_OOB_KEYS, SMP_SM_NO_ACTION, SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA}, /* HAVE_LOC_NONCE */ {SMP_SET_LOCAL_OOB_RAND_COMMITMENT, SMP_SM_NO_ACTION, SMP_STATE_IDLE} }; static const tSMP_SM_TBL smp_state_table[][2] = { /* SMP_STATE_IDLE */ {smp_master_idle_table, smp_slave_idle_table}, /* SMP_STATE_WAIT_APP_RSP */ {smp_master_wait_for_app_response_table, smp_slave_wait_for_app_response_table}, /* SMP_STATE_SEC_REQ_PENDING */ {NULL, smp_slave_sec_request_table}, /* SMP_STATE_PAIR_REQ_RSP */ {smp_master_pair_request_response_table, smp_slave_pair_request_response_table}, /* SMP_STATE_WAIT_CONFIRM */ {smp_master_wait_for_confirm_table, smp_slave_wait_confirm_table}, /* SMP_STATE_CONFIRM */ {smp_master_confirm_table, smp_slave_confirm_table}, /* SMP_STATE_RAND */ {smp_master_rand_table, smp_slave_rand_table}, /* SMP_STATE_PUBLIC_KEY_EXCH */ {smp_master_public_key_exchange_table,smp_slave_public_key_exch_table}, /* SMP_STATE_SEC_CONN_PHS1_START */ {smp_master_sec_conn_phs1_start_table, smp_slave_sec_conn_phs1_start_table}, /* SMP_STATE_WAIT_COMMITMENT */ {smp_master_wait_commitment_table, smp_slave_wait_commitment_table}, /* SMP_STATE_WAIT_NONCE */ {smp_master_wait_nonce_table, smp_slave_wait_nonce_table}, /* SMP_STATE_SEC_CONN_PHS2_START */ {smp_master_sec_conn_phs2_start_table, smp_slave_sec_conn_phs2_start_table}, /* SMP_STATE_WAIT_DHK_CHECK */ {smp_master_wait_dhk_check_table, smp_slave_wait_dhk_check_table}, /* SMP_STATE_DHK_CHECK */ {smp_master_dhk_check_table, smp_slave_dhk_check_table}, /* SMP_STATE_ENCRYPTION_PENDING */ {smp_master_enc_pending_table, smp_slave_enc_pending_table}, /* SMP_STATE_BOND_PENDING */ {smp_master_bond_pending_table, smp_slave_bond_pending_table}, /* SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA */ {smp_master_create_local_sec_conn_oob_data, smp_slave_create_local_sec_conn_oob_data} }; typedef const UINT8 (*tSMP_ENTRY_TBL)[SMP_STATE_MAX]; static const tSMP_ENTRY_TBL smp_entry_table[] = { smp_master_entry_map, smp_slave_entry_map }; #if SMP_DYNAMIC_MEMORY == FALSE tSMP_CB smp_cb; #endif #define SMP_ALL_TBL_MASK 0x80 /******************************************************************************* ** Function smp_set_state ** Returns None *******************************************************************************/ void smp_set_state(tSMP_STATE state) { if (state < SMP_STATE_MAX) { SMP_TRACE_DEBUG( "State change: %s(%d) ==> %s(%d)", smp_get_state_name(smp_cb.state), smp_cb.state, smp_get_state_name(state), state ); smp_cb.state = state; } else { SMP_TRACE_DEBUG("smp_set_state invalid state =%d", state ); } } /******************************************************************************* ** Function smp_get_state ** Returns The smp state *******************************************************************************/ tSMP_STATE smp_get_state(void) { return smp_cb.state; } /******************************************************************************* ** ** Function smp_sm_event ** ** Description Handle events to the state machine. It looks up the entry ** in the smp_entry_table array. ** If it is a valid entry, it gets the state table.Set the next state, ** if not NULL state.Execute the action function according to the ** state table. If the state returned by action function is not NULL ** state, adjust the new state to the returned state.If (api_evt != MAX), ** call callback function. ** ** Returns void. ** *******************************************************************************/ void smp_sm_event(tSMP_CB *p_cb, tSMP_EVENT event, void *p_data) { UINT8 curr_state = p_cb->state; tSMP_SM_TBL state_table; UINT8 action, entry, i; tSMP_ENTRY_TBL entry_table = smp_entry_table[p_cb->role]; SMP_TRACE_EVENT("main smp_sm_event"); if (curr_state >= SMP_STATE_MAX) { SMP_TRACE_DEBUG( "Invalid state: %d", curr_state) ; return; } SMP_TRACE_DEBUG( "SMP Role: %s State: [%s (%d)], Event: [%s (%d)]",\ (p_cb->role == 0x01) ?"Slave" : "Master", smp_get_state_name( p_cb->state), p_cb->state, smp_get_event_name(event), event) ; /* look up the state table for the current state */ /* lookup entry /w event & curr_state */ /* If entry is ignore, return. * Otherwise, get state table (according to curr_state or all_state) */ if ((event <= SMP_MAX_EVT) && ( (entry = entry_table[event - 1][curr_state]) != SMP_SM_IGNORE )) { if (entry & SMP_ALL_TBL_MASK) { entry &= ~SMP_ALL_TBL_MASK; state_table = smp_all_table; } else state_table = smp_state_table[curr_state][p_cb->role]; } else { SMP_TRACE_DEBUG( "Ignore event [%s (%d)] in state [%s (%d)]", smp_get_event_name(event), event, smp_get_state_name(curr_state), curr_state); return; } /* Get possible next state from state table. */ smp_set_state(state_table[entry-1][SMP_SME_NEXT_STATE]); /* If action is not ignore, clear param, exec action and get next state. * The action function may set the Param for cback. * Depending on param, call cback or free buffer. */ /* execute action */ /* execute action functions */ for (i = 0; i < SMP_NUM_ACTIONS; i++) { if ((action = state_table[entry-1][i]) != SMP_SM_NO_ACTION) { (*smp_sm_action[action])(p_cb, (tSMP_INT_DATA *)p_data); } else { break; } } SMP_TRACE_DEBUG( "result state = %s", smp_get_state_name( p_cb->state ) ) ; } /******************************************************************************* ** Function smp_get_state_name ** Returns The smp state name. *******************************************************************************/ const char * smp_get_state_name(tSMP_STATE state) { const char *p_str = smp_state_name[SMP_STATE_MAX]; if (state < SMP_STATE_MAX) { p_str = smp_state_name[state]; } return p_str; } /******************************************************************************* ** Function smp_get_event_name ** Returns The smp event name. *******************************************************************************/ const char * smp_get_event_name(tSMP_EVENT event) { const char *p_str = smp_event_name[SMP_MAX_EVT]; if (event <= SMP_MAX_EVT) { p_str = smp_event_name[event- 1]; } return p_str; } #endif