1 /****************************************************************************** 2 * 3 * Copyright (C) 2003-2012 Broadcom Corporation 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 #include "bt_target.h" 20 21 #if SMP_INCLUDED == TRUE 22 23 #include <string.h> 24 #include "smp_int.h" 25 26 27 const char * const smp_state_name [] = 28 { 29 "SMP_ST_IDLE", 30 "SMP_ST_WAIT_APP_RSP", 31 "SMP_ST_SEC_REQ_PENDING", 32 "SMP_ST_PAIR_REQ_RSP", 33 "SMP_ST_WAIT_CONFIRM", 34 "SMP_ST_CONFIRM", 35 "SMP_ST_RAND", 36 "SMP_ST_ENC_PENDING", 37 "SMP_ST_BOND_PENDING", 38 "SMP_ST_RELEASE_DELAY", 39 "SMP_ST_MAX" 40 }; 41 const char * const smp_event_name [] = 42 { 43 "PAIRING_REQ_EVT", 44 "PAIRING_RSP_EVT", 45 "CONFIRM_EVT", 46 "RAND_EVT", 47 "PAIRING_FAILED_EVT", 48 "ENC_INFO_EVT", 49 "MASTER_ID_EVT", 50 "ID_INFO_EVT", 51 "ID_ADDR_EVT", 52 "SIGN_INFO_EVT", 53 "SECURITY_REQ_EVT", 54 "KEY_READY_EVT", 55 "ENCRYPTED_EVT", 56 "L2CAP_CONN_EVT", 57 "L2CAP_DISCONN_EVT", 58 "API_IO_RSP_EVT", 59 "API_SEC_GRANT_EVT", 60 "TK_REQ_EVT", 61 "AUTH_CMPL_EVT", 62 "ENC_REQ_EVT", 63 "BOND_REQ_EVT", 64 "DISCARD_SEC_REQ_EVT", 65 "RELEASE_DELAY_EVT", 66 "RELEASE_DELAY_TOUT_EVT", 67 "MAX_EVT" 68 }; 69 const char * smp_get_event_name(tSMP_EVENT event); 70 const char * smp_get_state_name(tSMP_STATE state); 71 72 #define SMP_SM_IGNORE 0 73 #define SMP_NUM_ACTIONS 2 74 #define SMP_SME_NEXT_STATE 2 75 #define SMP_SM_NUM_COLS 3 76 typedef const UINT8 (*tSMP_SM_TBL)[SMP_SM_NUM_COLS]; 77 78 enum 79 { 80 SMP_PROC_SEC_REQ, 81 SMP_SEND_PAIR_REQ, 82 SMP_SEND_PAIR_RSP, 83 SMP_SEND_CONFIRM, 84 SMP_SEND_PAIR_FAIL, 85 SMP_SEND_INIT, 86 SMP_SEND_SECU_INFO, 87 SMP_SEND_ID_INFO, 88 SMP_SEND_LTK_REPLY, 89 SMP_PROC_PAIR_CMD, 90 SMP_PROC_PAIR_FAIL, 91 SMP_PROC_CONFIRM, 92 SMP_PROC_INIT, 93 SMP_PROC_ENC_INFO, 94 SMP_PROC_MASTER_ID, 95 SMP_PROC_ID_INFO, 96 SMP_PROC_ID_ADDR, 97 SMP_PROC_SRK_INFO, 98 SMP_PROC_SEC_GRANT, 99 SMP_PROC_SL_KEY, 100 SMP_PROC_COMPARE, 101 SMP_PROC_IO_RSP, 102 SMP_GENERATE_COMPARE, 103 SMP_GENERATE_CONFIRM, 104 SMP_GENERATE_STK, 105 SMP_KEY_DISTRIBUTE, 106 SMP_START_ENC, 107 SMP_PAIRING_CMPL, 108 SMP_DECIDE_ASSO_MODEL, 109 SMP_SEND_APP_CBACK, 110 SMP_CHECK_AUTH_REQ, 111 SMP_PAIR_TERMINATE, 112 SMP_ENC_CMPL, 113 SMP_PROC_DISCARD, 114 SMP_PROC_REL_DELAY, 115 SMP_PROC_REL_DELAY_TOUT, 116 SMP_SM_NO_ACTION 117 }; 118 119 static const tSMP_ACT smp_sm_action[] = 120 { 121 smp_proc_sec_req, 122 smp_send_pair_req, 123 smp_send_pair_rsp, 124 smp_send_confirm, 125 smp_send_pair_fail, 126 smp_send_init, 127 smp_send_enc_info, 128 smp_send_id_info, 129 smp_send_ltk_reply, 130 smp_proc_pair_cmd, 131 smp_proc_pair_fail, 132 smp_proc_confirm, 133 smp_proc_init, 134 smp_proc_enc_info, 135 smp_proc_master_id, 136 smp_proc_id_info, 137 smp_proc_id_addr, 138 smp_proc_srk_info, 139 smp_proc_sec_grant, 140 smp_proc_sl_key, 141 smp_proc_compare, 142 smp_proc_io_rsp, 143 smp_generate_compare, 144 smp_generate_confirm, 145 smp_generate_stk, 146 smp_key_distribution, 147 smp_start_enc, 148 smp_pairing_cmpl, 149 smp_decide_asso_model, 150 smp_send_app_cback, 151 smp_check_auth_req, 152 smp_pair_terminate, 153 smp_enc_cmpl, 154 smp_proc_discard, 155 smp_proc_release_delay, 156 smp_proc_release_delay_tout, 157 }; 158 /************ SMP Master FSM State/Event Indirection Table **************/ 159 static const UINT8 smp_ma_entry_map[][SMP_ST_MAX] = 160 { 161 /* state name: Idle WaitApp SecReq Pair Wait Confirm Init Enc Bond Rel 162 Rsp Pend ReqRsp Cfm Pend Pend Delay */ 163 /* PAIR_REQ */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 164 /* PAIR_RSP */{ 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 }, 165 /* CONFIRM */{ 0, 0, 0, 0, 0, 1, 0, 0, 0, 0 }, 166 /* INIT */{ 0, 0, 0, 0, 0, 0, 1, 0, 0, 0 }, 167 /* PAIR_FAIL */{ 0, 0x81, 0, 0x81, 0x81,0x81, 0x81,0, 0, 0 }, 168 /* ENC_INFO */{ 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 }, 169 /* MASTER_ID */{ 0, 0, 0, 0, 0, 0, 0, 0, 4, 0 }, 170 /* ID_INFO */{ 0, 0, 0, 0, 0, 0, 0, 0, 2, 0 }, 171 /* ID_ADDR */{ 0, 0, 0, 0, 0, 0, 0, 0, 5, 0 }, 172 /* SIGN_INFO */{ 0, 0, 0, 0, 0, 0, 0, 0, 3, 0 }, 173 /* SEC_REQ */{ 2, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 174 /* KEY_READY */{ 0, 3, 0, 3, 1, 0, 2, 1, 6, 0 }, 175 /* ENC_CMPL */{ 0, 0, 0, 0, 0, 0, 0, 2, 0, 0 }, 176 /* L2C_CONN */{ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 177 /* L2C_DISC */{ 0x83, 0x83, 0, 0x83, 0x83,0x83, 0x83,0x83, 0x83, 2 }, 178 /* IO_RSP */{ 0, 2, 0, 0, 0, 0, 0, 0, 0, 0 }, 179 /* SEC_GRANT */{ 0, 1, 0, 0, 0, 0, 0, 0, 0, 0 }, 180 /* TK_REQ */{ 0, 0, 0, 2, 0, 0, 0, 0, 0, 0 }, 181 /* AUTH_CMPL */{ 0, 0x82, 0, 0x82, 0x82,0x82, 0x82,0x82, 0x82, 0 }, 182 /* ENC_REQ */{ 0, 4, 0, 0, 0, 0, 3, 0, 0, 0 }, 183 /* BOND_REQ */{ 0, 0, 0, 0, 0, 0, 0, 3, 0, 0 }, 184 /* DISCARD_SEC_REQ */{ 0, 5, 0, 0, 0, 0, 0, 3, 0, 0 }, 185 /* RELEASE_DELAY */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 }, 186 /* RELEASE_DELAY_TOUT */{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 2 }, 187 }; 188 189 static const UINT8 smp_all_table[][SMP_SM_NUM_COLS] = { 190 /* Event Action Next State */ 191 /* PAIR_FAIL */ {SMP_PROC_PAIR_FAIL, SMP_PROC_REL_DELAY_TOUT, SMP_ST_IDLE}, 192 /* AUTH_CMPL */ {SMP_SEND_PAIR_FAIL, SMP_PAIRING_CMPL, SMP_ST_RELEASE_DELAY}, 193 /* L2C_DISC */ {SMP_PAIR_TERMINATE, SMP_SM_NO_ACTION, SMP_ST_IDLE} 194 }; 195 196 static const UINT8 smp_ma_idle_table[][SMP_SM_NUM_COLS] = { 197 /* Event Action Next State */ 198 /* L2C_CONN */ {SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_ST_WAIT_APP_RSP}, 199 /* SEC_REQ */ {SMP_PROC_SEC_REQ, SMP_SEND_APP_CBACK, SMP_ST_WAIT_APP_RSP} 200 }; 201 202 static const UINT8 smp_ma_wait_app_rsp_table[][SMP_SM_NUM_COLS] = { 203 /* Event Action Next State */ 204 /* SEC_GRANT */ { SMP_PROC_SEC_GRANT, SMP_SEND_APP_CBACK, SMP_ST_WAIT_APP_RSP}, 205 /* IO_RSP */ { SMP_SEND_PAIR_REQ, SMP_SM_NO_ACTION, SMP_ST_PAIR_REQ_RSP}, 206 /* KEY_READY */ { SMP_GENERATE_CONFIRM, SMP_SM_NO_ACTION, SMP_ST_WAIT_CONFIRM},/* TK ready */ 207 /* ENC_REQ */ { SMP_START_ENC, SMP_SM_NO_ACTION, SMP_ST_ENC_PENDING},/* start enc mode setup */ 208 /* DISCARD_SEC_REQ */ { SMP_PROC_DISCARD, SMP_SM_NO_ACTION, SMP_ST_IDLE} 209 }; 210 211 static const UINT8 smp_ma_pair_req_rsp_table [][SMP_SM_NUM_COLS] = { 212 /* Event Action Next State */ 213 /* PAIR_RSP */ { SMP_PROC_PAIR_CMD, SMP_DECIDE_ASSO_MODEL, SMP_ST_PAIR_REQ_RSP}, 214 /* TK_REQ */ { SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_ST_WAIT_APP_RSP}, 215 /* KEY_READY */{ SMP_GENERATE_CONFIRM, SMP_SM_NO_ACTION, SMP_ST_WAIT_CONFIRM} /* TK ready */ 216 }; 217 218 static const UINT8 smp_ma_wait_confirm_table[][SMP_SM_NUM_COLS] = { 219 /* Event Action Next State */ 220 /* KEY_READY*/ {SMP_SEND_CONFIRM, SMP_SM_NO_ACTION, SMP_ST_CONFIRM}/* CONFIRM ready */ 221 }; 222 223 static const UINT8 smp_ma_confirm_table [][SMP_SM_NUM_COLS] = { 224 /* Event Action Next State */ 225 /* CONFIRM */ { SMP_PROC_CONFIRM, SMP_SEND_INIT, SMP_ST_RAND} 226 }; 227 228 static const UINT8 smp_ma_init_table [][SMP_SM_NUM_COLS] = { 229 /* Event Action Next State */ 230 /* INIT */ { SMP_PROC_INIT, SMP_GENERATE_COMPARE, SMP_ST_RAND}, 231 /* KEY_READY*/ { SMP_PROC_COMPARE, SMP_SM_NO_ACTION, SMP_ST_RAND}, /* Compare ready */ 232 /* ENC_REQ */ { SMP_GENERATE_STK, SMP_SM_NO_ACTION, SMP_ST_ENC_PENDING} 233 }; 234 static const UINT8 smp_ma_enc_pending_table[][SMP_SM_NUM_COLS] = { 235 /* Event Action Next State */ 236 /* KEY_READY */ { SMP_START_ENC, SMP_SM_NO_ACTION, SMP_ST_ENC_PENDING}, /* STK ready */ 237 /* ENCRYPTED */ { SMP_CHECK_AUTH_REQ, SMP_SM_NO_ACTION, SMP_ST_ENC_PENDING}, 238 /* BOND_REQ */ { SMP_KEY_DISTRIBUTE, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING} 239 }; 240 static const UINT8 smp_ma_bond_pending_table[][SMP_SM_NUM_COLS] = { 241 /* Event Action Next State */ 242 /* ENC_INFO */ { SMP_PROC_ENC_INFO, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING}, 243 /* ID_INFO */ { SMP_PROC_ID_INFO, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING}, 244 /* SIGN_INFO*/ { SMP_PROC_SRK_INFO, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING}, 245 /* MASTER_ID*/ { SMP_PROC_MASTER_ID, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING}, 246 /* ID_ADDR */ { SMP_PROC_ID_ADDR, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING}, 247 /* KEY_READY */ {SMP_SEND_SECU_INFO, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING} /* LTK ready */ 248 }; 249 250 static const UINT8 smp_ma_rel_delay_table[][SMP_SM_NUM_COLS] = { 251 /* Event Action Next State */ 252 /* RELEASE_DELAY*/ {SMP_PROC_REL_DELAY, SMP_SM_NO_ACTION, SMP_ST_RELEASE_DELAY}, 253 /* RELEASE_DELAY_TOUT*/ {SMP_PROC_REL_DELAY_TOUT, SMP_SM_NO_ACTION, SMP_ST_IDLE} 254 }; 255 256 257 /************ SMP Slave FSM State/Event Indirection Table **************/ 258 static const UINT8 smp_sl_entry_map[][SMP_ST_MAX] = 259 { 260 /* state name: Idle Wait SecReq Pair Wait Confirm Init Enc Bond Rel 261 AppRsp Pend ReqRsp Cfm Pend Pend Delay */ 262 /* PAIR_REQ */ { 2, 0, 1, 0, 0, 0, 0, 0, 0, 0 }, 263 /* PAIR_RSP */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 264 /* CONFIRM */ { 0, 4, 0, 1, 1, 0, 0, 0, 0, 0 }, 265 /* INIT */ { 0, 0, 0, 0, 0, 1, 2, 0, 0, 0 }, 266 /* PAIR_FAIL*/ { 0, 0x81, 0x81, 0x81, 0x81,0x81, 0x81,0x81, 0, 0 }, 267 /* ENC_INFO */ { 0, 0, 0, 0, 0, 0, 0, 0, 3, 0 }, 268 /* MASTER_ID*/ { 0, 0, 0, 0, 0, 0, 0, 0, 5, 0 }, 269 /* ID_INFO */ { 0, 0, 0, 0, 0, 0, 0, 0, 4, 0 }, 270 /* ID_ADDR */ { 0, 0, 0, 0, 0, 0, 0, 0, 6, 0 }, 271 /* SIGN_INFO*/ { 0, 0, 0, 0, 0, 0, 0, 0, 2, 0 }, 272 /* SEC_REQ */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 273 274 /* KEY_READY*/ { 0, 3, 0, 3, 2, 2, 1, 2, 1, 0 }, 275 /* ENC_CMPL */ { 0, 0, 2, 0, 0, 0, 0, 3, 0, 0 }, 276 /* L2C_CONN */ { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 277 /* L2C_DISC */ { 0, 0x83, 0x83, 0x83, 0x83,0x83, 0x83,0x83, 0x83, 2 }, 278 /* IO_RSP */ { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0 }, 279 /* SEC_GRANT*/ { 0, 2, 0, 0, 0, 0, 0, 0, 0, 0 }, 280 281 /* TK_REQ */ { 0, 0, 0, 2, 0, 0, 0, 0, 0, 0 }, 282 /* AUTH_CMPL*/ { 0, 0x82, 0x82, 0x82, 0x82,0x82, 0x82,0x82, 0x82, 0 }, 283 /* ENC_REQ */ { 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 }, 284 /* BOND_REQ */ { 0, 0, 0, 0, 0, 0, 0, 4, 0, 0 }, 285 /* DISCARD_SEC_REQ */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 286 /* RELEASE_DELAY */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 }, 287 /* RELEASE_DELAY_TOUT */ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 2 }, 288 }; 289 290 static const UINT8 smp_sl_idle_table[][SMP_SM_NUM_COLS] = { 291 /* Event Action Next State */ 292 /* L2C_CONN */ {SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_ST_WAIT_APP_RSP}, 293 /* PAIR_REQ */ {SMP_PROC_PAIR_CMD, SMP_SEND_APP_CBACK, SMP_ST_WAIT_APP_RSP} 294 }; 295 296 static const UINT8 smp_sl_wait_app_rsp_table [][SMP_SM_NUM_COLS] = { 297 /* Event Action Next State */ 298 /* IO_RSP */ {SMP_PROC_IO_RSP, SMP_SM_NO_ACTION, SMP_ST_PAIR_REQ_RSP}, 299 /* SEC_GRANT */ {SMP_PROC_SEC_GRANT, SMP_SEND_APP_CBACK, SMP_ST_WAIT_APP_RSP}, 300 /* KEY_READY */ {SMP_PROC_SL_KEY, SMP_SM_NO_ACTION, SMP_ST_WAIT_APP_RSP},/* TK ready */ 301 /* CONFIRM */ {SMP_PROC_CONFIRM, SMP_SM_NO_ACTION, SMP_ST_CONFIRM} 302 }; 303 304 static const UINT8 smp_sl_sec_request_table[][SMP_SM_NUM_COLS] = { 305 /* Event Action Next State */ 306 /* PAIR_REQ */{SMP_PROC_PAIR_CMD, SMP_SEND_PAIR_RSP, SMP_ST_PAIR_REQ_RSP}, 307 /* ENCRYPTED*/{SMP_ENC_CMPL, SMP_SM_NO_ACTION, SMP_ST_PAIR_REQ_RSP}, 308 }; 309 310 static const UINT8 smp_sl_pair_req_rsp_table[][SMP_SM_NUM_COLS] = { 311 /* Event Action Next State */ 312 /* CONFIRM */ {SMP_PROC_CONFIRM, SMP_SM_NO_ACTION, SMP_ST_CONFIRM}, 313 /* TK_REQ */ {SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_ST_WAIT_APP_RSP}, 314 /* KEY_READY */{SMP_PROC_SL_KEY, SMP_SM_NO_ACTION, SMP_ST_PAIR_REQ_RSP} /* TK/Confirm ready */ 315 316 }; 317 318 static const UINT8 smp_sl_wait_confirm_table[][SMP_SM_NUM_COLS] = { 319 /* Event Action Next State */ 320 /* CONFIRM */ {SMP_PROC_CONFIRM, SMP_SEND_CONFIRM, SMP_ST_CONFIRM}, 321 /* KEY_READY*/ {SMP_PROC_SL_KEY, SMP_SM_NO_ACTION, SMP_ST_WAIT_CONFIRM} 322 }; 323 static const UINT8 smp_sl_confirm_table [][SMP_SM_NUM_COLS] = { 324 /* Event Action Next State */ 325 /* INIT_EVT */{ SMP_PROC_INIT, SMP_GENERATE_COMPARE, SMP_ST_RAND}, 326 /* KEY_READY*/ {SMP_PROC_SL_KEY, SMP_SM_NO_ACTION, SMP_ST_CONFIRM} /* TK/Confirm ready */ 327 }; 328 static const UINT8 smp_sl_init_table [][SMP_SM_NUM_COLS] = { 329 /* Event Action Next State */ 330 /* KEY_READY */ {SMP_PROC_COMPARE, SMP_SM_NO_ACTION, SMP_ST_RAND}, /* compare match */ 331 /* INIT_EVT */ {SMP_SEND_INIT, SMP_SM_NO_ACTION, SMP_ST_ENC_PENDING} 332 }; 333 static const UINT8 smp_sl_enc_pending_table[][SMP_SM_NUM_COLS] = { 334 /* Event Action Next State */ 335 /* ENC_REQ */ {SMP_GENERATE_STK, SMP_SM_NO_ACTION, SMP_ST_ENC_PENDING}, 336 /* KEY_READY */ {SMP_SEND_LTK_REPLY, SMP_SM_NO_ACTION, SMP_ST_ENC_PENDING},/* STK ready */ 337 /* ENCRYPTED */ {SMP_CHECK_AUTH_REQ, SMP_SM_NO_ACTION, SMP_ST_ENC_PENDING}, 338 /* BOND_REQ */ {SMP_KEY_DISTRIBUTE, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING} 339 }; 340 static const UINT8 smp_sl_bond_pending_table[][SMP_SM_NUM_COLS] = { 341 /* Event Action Next State */ 342 /* KEY_READY */ {SMP_SEND_SECU_INFO, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING}, /* LTK ready */ 343 /* SIGN_INFO */ {SMP_PROC_SRK_INFO, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING}, /* rev SRK */ 344 /* ENC_INFO */ { SMP_PROC_ENC_INFO, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING}, 345 /* ID_INFO */ { SMP_PROC_ID_INFO, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING}, 346 /* MASTER_ID*/ { SMP_PROC_MASTER_ID, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING}, 347 /* ID_ADDR */ { SMP_PROC_ID_ADDR, SMP_SM_NO_ACTION, SMP_ST_BOND_PENDING} 348 349 }; 350 351 static const UINT8 smp_sl_rel_delay_table[][SMP_SM_NUM_COLS] = { 352 /* Event Action Next State */ 353 /* RELEASE_DELAY*/ {SMP_PROC_REL_DELAY, SMP_SM_NO_ACTION, SMP_ST_RELEASE_DELAY}, 354 /* RELEASE_DELAY_TOUT*/ {SMP_PROC_REL_DELAY_TOUT, SMP_SM_NO_ACTION, SMP_ST_IDLE} 355 }; 356 357 static const tSMP_SM_TBL smp_state_table[][2] = { 358 {smp_ma_idle_table, smp_sl_idle_table}, /* SMP_ST_IDLE*/ 359 {smp_ma_wait_app_rsp_table, smp_sl_wait_app_rsp_table}, /* SMP_ST_WAIT_APP_RSP */ 360 {NULL, smp_sl_sec_request_table}, /* SMP_ST_SEC_REQ_PENDING */ 361 {smp_ma_pair_req_rsp_table, smp_sl_pair_req_rsp_table}, /* SMP_ST_PAIR_REQ_RSP */ 362 {smp_ma_wait_confirm_table, smp_sl_wait_confirm_table}, /* SMP_ST_WAIT_CONFIRM */ 363 {smp_ma_confirm_table, smp_sl_confirm_table}, /* SMP_ST_CONFIRM */ 364 {smp_ma_init_table, smp_sl_init_table}, /* SMP_ST_RAND */ 365 {smp_ma_enc_pending_table, smp_sl_enc_pending_table}, /* SMP_ST_ENC_PENDING */ 366 {smp_ma_bond_pending_table, smp_sl_bond_pending_table}, /* SMP_ST_BOND_PENDING */ 367 {smp_ma_rel_delay_table, smp_sl_rel_delay_table} /* SMP_ST_RELEASE_DELAY */ 368 }; 369 370 typedef const UINT8 (*tSMP_ENTRY_TBL)[SMP_ST_MAX]; 371 static const tSMP_ENTRY_TBL smp_entry_table[] ={ 372 smp_ma_entry_map, 373 smp_sl_entry_map 374 }; 375 376 #if SMP_DYNAMIC_MEMORY == FALSE 377 tSMP_CB smp_cb; 378 #endif 379 #define SMP_ALL_TBL_MASK 0x80 380 381 382 /******************************************************************************* 383 ** Function smp_set_state 384 ** Returns None 385 *******************************************************************************/ 386 void smp_set_state(tSMP_STATE state) 387 { 388 if (state < SMP_ST_MAX) 389 { 390 SMP_TRACE_DEBUG4( "State change: %s(%d) ==> %s(%d)", 391 smp_get_state_name(smp_cb.state), smp_cb.state, 392 smp_get_state_name(state), state ); 393 smp_cb.state = state; 394 } 395 else 396 { 397 SMP_TRACE_DEBUG1("smp_set_state invalid state =%d", state ); 398 } 399 } 400 401 /******************************************************************************* 402 ** Function smp_get_state 403 ** Returns The smp state 404 *******************************************************************************/ 405 tSMP_STATE smp_get_state(void) 406 { 407 return smp_cb.state; 408 } 409 410 411 /******************************************************************************* 412 ** 413 ** Function smp_sm_event 414 ** 415 ** Description Handle events to the state machine. It looks up the entry 416 ** in the smp_entry_table array. 417 ** If it is a valid entry, it gets the state table.Set the next state, 418 ** if not NULL state.Execute the action function according to the 419 ** state table. If the state returned by action function is not NULL 420 ** state, adjust the new state to the returned state.If (api_evt != MAX), 421 ** call callback function. 422 ** 423 ** Returns void. 424 ** 425 *******************************************************************************/ 426 void smp_sm_event(tSMP_CB *p_cb, tSMP_EVENT event, void *p_data) 427 { 428 UINT8 curr_state = p_cb->state; 429 tSMP_SM_TBL state_table; 430 UINT8 action, entry, i; 431 tSMP_ENTRY_TBL entry_table = smp_entry_table[p_cb->role]; 432 433 SMP_TRACE_EVENT0("main smp_sm_event"); 434 if (curr_state >= SMP_ST_MAX) 435 { 436 SMP_TRACE_DEBUG1( "Invalid state: %d", curr_state) ; 437 return; 438 } 439 440 SMP_TRACE_DEBUG5( "SMP Role: %s State: [%s (%d)], Event: [%s (%d)]",\ 441 (p_cb->role == 0x01) ?"Slave" : "Master", smp_get_state_name( p_cb->state), 442 p_cb->state, smp_get_event_name(event), event) ; 443 444 /* look up the state table for the current state */ 445 /* lookup entry /w event & curr_state */ 446 /* If entry is ignore, return. 447 * Otherwise, get state table (according to curr_state or all_state) */ 448 if ( (entry = entry_table[event - 1][curr_state]) != SMP_SM_IGNORE ) 449 { 450 if (entry & SMP_ALL_TBL_MASK) 451 { 452 entry &= ~SMP_ALL_TBL_MASK; 453 state_table = smp_all_table; 454 } 455 else 456 state_table = smp_state_table[curr_state][p_cb->role]; 457 } 458 else 459 { 460 SMP_TRACE_DEBUG4( "Ignore event [%s (%d)] in state [%s (%d)]", 461 smp_get_event_name(event), event, smp_get_state_name(curr_state), curr_state); 462 return; 463 } 464 465 /* Get possible next state from state table. */ 466 467 smp_set_state(state_table[entry-1][SMP_SME_NEXT_STATE]); 468 469 /* If action is not ignore, clear param, exec action and get next state. 470 * The action function may set the Param for cback. 471 * Depending on param, call cback or free buffer. */ 472 /* execute action */ 473 /* execute action functions */ 474 for (i = 0; i < SMP_NUM_ACTIONS; i++) 475 { 476 if ((action = state_table[entry-1][i]) != SMP_SM_NO_ACTION) 477 { 478 (*smp_sm_action[action])(p_cb, (tSMP_INT_DATA *)p_data); 479 } 480 else 481 { 482 break; 483 } 484 } 485 SMP_TRACE_DEBUG1( "result state = %s", smp_get_state_name( p_cb->state ) ) ; 486 } 487 488 489 /******************************************************************************* 490 ** Function smp_get_state_name 491 ** Returns The smp state name. 492 *******************************************************************************/ 493 const char * smp_get_state_name(tSMP_STATE state) 494 { 495 const char * p_str = smp_state_name[SMP_ST_MAX]; 496 497 if (state < SMP_ST_MAX) 498 { 499 p_str = smp_state_name[state]; 500 } 501 return p_str; 502 } 503 /******************************************************************************* 504 ** Function smp_get_event_name 505 ** Returns The smp event name. 506 *******************************************************************************/ 507 const char * smp_get_event_name(tSMP_EVENT event) 508 { 509 const char * p_str = smp_event_name[SMP_MAX_EVT - 1]; 510 511 if (event < SMP_MAX_EVT) 512 { 513 p_str = smp_event_name[event- 1]; 514 } 515 return p_str; 516 } 517 #endif 518 519
