| /****************************************************************************** |
| * |
| * 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" |
| |
| #include <cutils/log.h> |
| #include <string.h> |
| #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_t (*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_t smp_master_entry_map[][SMP_STATE_MAX] = { |
| /* state name: */ |
| /* Idle, WaitApp Rsp, SecReq Pend, Pair ReqRsp, Wait Cfm, Confirm, Rand, |
| PublKey Exch, SCPhs1 Strt, Wait Cmtm, Wait Nonce, SCPhs2 Strt, Wait |
| DHKChk, DHKChk, Enc Pend, Bond Pend, CrLocSc 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_t 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_t 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_t 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_t 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_t smp_master_wait_for_confirm_table[][SMP_SM_NUM_COLS] = { |
| /* Event Action Next State */ |
| /* KEY_READY*/ |
| /* CONFIRM ready */ |
| {SMP_SEND_CONFIRM, SMP_SM_NO_ACTION, SMP_STATE_CONFIRM}}; |
| |
| static const uint8_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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 */ |
| /* LTK ready */ |
| {SMP_SEND_ENC_INFO, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}}; |
| |
| static const uint8_t |
| 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_t smp_slave_entry_map[][SMP_STATE_MAX] = { |
| /* state name: */ |
| /* Idle, WaitApp Rsp, SecReq Pend, Pair ReqRsp, Wait Cfm, Confirm, Rand, |
| PublKey Exch, SCPhs1 Strt, Wait Cmtm, Wait Nonce, SCPhs2 Strt, Wait |
| DHKChk, DHKChk, Enc Pend, Bond Pend, CrLocSc 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t 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_t |
| 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_t (*tSMP_ENTRY_TBL)[SMP_STATE_MAX]; |
| static const tSMP_ENTRY_TBL smp_entry_table[] = {smp_master_entry_map, |
| smp_slave_entry_map}; |
| |
| tSMP_CB smp_cb; |
| |
| #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_t curr_state = p_cb->state; |
| tSMP_SM_TBL state_table; |
| uint8_t action, entry, i; |
| |
| if (p_cb->role >= 2) { |
| SMP_TRACE_DEBUG("Invalid role: %d", p_cb->role); |
| android_errorWriteLog(0x534e4554, "74121126"); |
| return; |
| } |
| |
| 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++) { |
| action = state_table[entry - 1][i]; |
| if (action != 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; |
| } |
