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esp-idf/components/bt/bluedroid/stack/smp/smp_main.c

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component/bt: add bluedroid 1st version 1. add bluedroid 1st version 2. alarm adapter 3. task semaphore lock 4. other bugs resolved
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/******************************************************************************
*
* 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 <string.h>
#include "smp_int.h"
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const char *const smp_state_name [] = {
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"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"
};
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const char *const smp_event_name [] = {
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"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];
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enum {
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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
};
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static const tSMP_ACT smp_sm_action[] = {
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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 **************/
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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, 0, 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},
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};
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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},
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};
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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},
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};
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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},
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};
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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},
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};
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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},
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};
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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}
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};
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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 */
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};
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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}
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};
/************ SMP Slave FSM State/Event Indirection Table **************/
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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 */
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/* PAIR_REQ */{ 2, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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/* 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},
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};
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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},
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};
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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},
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};
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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},
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};
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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},
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};
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static const UINT8 smp_slave_dhk_check_table[][SMP_SM_NUM_COLS] = {
/* Event Action Next State */
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/* 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},
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/* 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},
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};
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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},
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/* 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}
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};
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static const UINT8 smp_slave_bond_pending_table[][SMP_SM_NUM_COLS] = {
/* Event Action Next State */
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/* LTK ready */
/* KEY_READY */{ SMP_SEND_ENC_INFO, SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING},
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/* 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}
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};
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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}
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};
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static const tSMP_SM_TBL smp_state_table[][2] = {
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/* 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 */
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{smp_master_public_key_exchange_table, smp_slave_public_key_exch_table},
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/* 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},
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/* SMP_STATE_SEC_CONN_PHS2_START */
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{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},
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/* SMP_STATE_BOND_PENDING */
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{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];
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static const tSMP_ENTRY_TBL smp_entry_table[] = {
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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)
{
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if (state < SMP_STATE_MAX) {
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SMP_TRACE_DEBUG( "State change: %s(%d) ==> %s(%d)",
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smp_get_state_name(smp_cb.state), smp_cb.state,
smp_get_state_name(state), state );
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smp_cb.state = state;
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} else {
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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];
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SMP_TRACE_EVENT("main smp_sm_event\n");
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if (curr_state >= SMP_STATE_MAX) {
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SMP_TRACE_DEBUG( "Invalid state: %d\n", curr_state) ;
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return;
}
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SMP_TRACE_DEBUG( "SMP Role: %s State: [%s (%d)], Event: [%s (%d)]", \
(p_cb->role == 0x01) ? "Slave" : "Master\n", smp_get_state_name( p_cb->state),
p_cb->state, smp_get_event_name(event), event) ;
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/* 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) */
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if ((event <= SMP_MAX_EVT) && ( (entry = entry_table[event - 1][curr_state]) != SMP_SM_IGNORE )) {
if (entry & SMP_ALL_TBL_MASK) {
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entry &= ~SMP_ALL_TBL_MASK;
state_table = smp_all_table;
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} else {
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state_table = smp_state_table[curr_state][p_cb->role];
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}
} else {
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SMP_TRACE_DEBUG( "Ignore event [%s (%d)] in state [%s (%d)]\n",
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smp_get_event_name(event), event, smp_get_state_name(curr_state),
curr_state);
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return;
}
/* Get possible next state from state table. */
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smp_set_state(state_table[entry - 1][SMP_SME_NEXT_STATE]);
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/* 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 */
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for (i = 0; i < SMP_NUM_ACTIONS; i++) {
if ((action = state_table[entry - 1][i]) != SMP_SM_NO_ACTION) {
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(*smp_sm_action[action])(p_cb, (tSMP_INT_DATA *)p_data);
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} else {
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break;
}
}
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SMP_TRACE_DEBUG( "result state = %s\n", smp_get_state_name( p_cb->state ) ) ;
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}
/*******************************************************************************
** Function smp_get_state_name
** Returns The smp state name.
*******************************************************************************/
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const char *smp_get_state_name(tSMP_STATE state)
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{
const char *p_str = smp_state_name[SMP_STATE_MAX];
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if (state < SMP_STATE_MAX) {
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p_str = smp_state_name[state];
}
return p_str;
}
/*******************************************************************************
** Function smp_get_event_name
** Returns The smp event name.
*******************************************************************************/
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const char *smp_get_event_name(tSMP_EVENT event)
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{
const char *p_str = smp_event_name[SMP_MAX_EVT];
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if (event <= SMP_MAX_EVT) {
p_str = smp_event_name[event - 1];
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}
return p_str;
}
#endif
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