The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame^] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 2010-2012 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 | /****************************************************************************** |
| 20 | * |
| 21 | * This is the utilities implementation file for the NFA Connection |
| 22 | * Handover. |
| 23 | * |
| 24 | ******************************************************************************/ |
| 25 | |
| 26 | #include "string.h" |
| 27 | #include "nfa_sys.h" |
| 28 | #include "llcp_api.h" |
| 29 | #include "llcp_defs.h" |
| 30 | #include "nfa_p2p_int.h" |
| 31 | #include "nfa_cho_api.h" |
| 32 | #include "nfa_cho_int.h" |
| 33 | #include "trace_api.h" |
| 34 | #include "nfa_mem_co.h" |
| 35 | |
| 36 | /***************************************************************************** |
| 37 | ** Constants |
| 38 | *****************************************************************************/ |
| 39 | /* Handover server name on LLCP */ |
| 40 | static char *p_cho_service_name = "urn:nfc:sn:handover"; |
| 41 | |
| 42 | /* Handover Request Record Type */ |
| 43 | static UINT8 hr_rec_type[HR_REC_TYPE_LEN] = { 0x48, 0x72 }; /* "Hr" */ |
| 44 | |
| 45 | /* Handover Select Record Type */ |
| 46 | static UINT8 hs_rec_type[HS_REC_TYPE_LEN] = { 0x48, 0x73 }; /* "Hs" */ |
| 47 | |
| 48 | /* Handover Carrier recrod Type */ |
| 49 | /* static UINT8 hc_rec_type[HC_REC_TYPE_LEN] = { 0x48, 0x63 }; "Hc" */ |
| 50 | |
| 51 | /* Collision Resolution Record Type */ |
| 52 | static UINT8 cr_rec_type[CR_REC_TYPE_LEN] = { 0x63, 0x72 }; /* "cr" */ |
| 53 | |
| 54 | /* Alternative Carrier Record Type */ |
| 55 | static UINT8 ac_rec_type[AC_REC_TYPE_LEN] = { 0x61, 0x63 }; /* "ac" */ |
| 56 | |
| 57 | /* Error Record Type */ |
| 58 | static UINT8 err_rec_type[ERR_REC_TYPE_LEN] = { 0x65, 0x72, 0x72 }; /* "err" */ |
| 59 | |
| 60 | /* Bluetooth OOB Data Type */ |
| 61 | static UINT8 *p_bt_oob_rec_type = (UINT8 *) "application/vnd.bluetooth.ep.oob"; |
| 62 | |
| 63 | /* WiFi Data Type */ |
| 64 | static UINT8 *p_wifi_rec_type = (UINT8 *) "application/vnd.wfa.wsc"; |
| 65 | |
| 66 | /***************************************************************************** |
| 67 | ** Global Variables |
| 68 | *****************************************************************************/ |
| 69 | |
| 70 | /***************************************************************************** |
| 71 | ** Static Functions |
| 72 | *****************************************************************************/ |
| 73 | static void nfa_cho_ndef_cback (tNFA_NDEF_EVT event, tNFA_NDEF_EVT_DATA *p_data); |
| 74 | |
| 75 | /******************************************************************************* |
| 76 | ** |
| 77 | ** Function nfa_cho_ndef_cback |
| 78 | ** |
| 79 | ** Description callback function from NDEF handler |
| 80 | ** Post NDEF handler callback event to NFA Connection Handover module |
| 81 | ** |
| 82 | ** Returns None |
| 83 | ** |
| 84 | *******************************************************************************/ |
| 85 | static void nfa_cho_ndef_cback (tNFA_NDEF_EVT event, tNFA_NDEF_EVT_DATA *p_data) |
| 86 | { |
| 87 | tNFA_CHO_NDEF_TYPE_HDLR_EVT *p_msg; |
| 88 | tNFA_CHO_MSG_TYPE msg_type; |
| 89 | |
| 90 | CHO_TRACE_DEBUG1 ("nfa_cho_ndef_cback () event=%d", event); |
| 91 | |
| 92 | if ((p_msg = (tNFA_CHO_NDEF_TYPE_HDLR_EVT *) GKI_getbuf (sizeof (tNFA_CHO_NDEF_TYPE_HDLR_EVT))) != NULL) |
| 93 | { |
| 94 | p_msg->hdr.event = NFA_CHO_NDEF_TYPE_HANDLER_EVT; |
| 95 | |
| 96 | /* copy NDEF handler callback event and data */ |
| 97 | p_msg->event = event; |
| 98 | memcpy (&(p_msg->data), p_data, sizeof (tNFA_NDEF_EVT_DATA)); |
| 99 | |
| 100 | /* if it has NDEF message */ |
| 101 | if (event == NFA_NDEF_DATA_EVT) |
| 102 | { |
| 103 | if (p_data->ndef_data.ndef_type_handle == nfa_cho_cb.bt_ndef_type_handle ) |
| 104 | { |
| 105 | msg_type = nfa_cho_get_msg_type (p_data->ndef_data.len, |
| 106 | p_data->ndef_data.p_data); |
| 107 | if (msg_type != NFA_CHO_MSG_BT_OOB) |
| 108 | { |
| 109 | /* This is not simplified BT OOB Message. It contains BT OOB Message. */ |
| 110 | GKI_freebuf (p_msg); |
| 111 | return; |
| 112 | } |
| 113 | } |
| 114 | else if (p_data->ndef_data.ndef_type_handle == nfa_cho_cb.wifi_ndef_type_handle ) |
| 115 | { |
| 116 | msg_type = nfa_cho_get_msg_type (p_data->ndef_data.len, |
| 117 | p_data->ndef_data.p_data); |
| 118 | if (msg_type != NFA_CHO_MSG_WIFI) |
| 119 | { |
| 120 | /* This is not simplified WiFi Message. It contains WiFi Message. */ |
| 121 | GKI_freebuf (p_msg); |
| 122 | return; |
| 123 | } |
| 124 | } |
| 125 | |
| 126 | /* |
| 127 | ** NDEF message could be bigger than max GKI buffer |
| 128 | ** so allocate memory from platform. |
| 129 | */ |
| 130 | p_msg->data.ndef_data.p_data = (UINT8 *) nfa_mem_co_alloc (p_msg->data.ndef_data.len); |
| 131 | |
| 132 | if (p_msg->data.ndef_data.p_data) |
| 133 | { |
| 134 | memcpy (p_msg->data.ndef_data.p_data, |
| 135 | p_data->ndef_data.p_data, |
| 136 | p_msg->data.ndef_data.len); |
| 137 | } |
| 138 | else |
| 139 | { |
| 140 | CHO_TRACE_ERROR1 ("Failed nfa_mem_co_alloc () for %d bytes", p_msg->data.ndef_data.len); |
| 141 | GKI_freebuf (p_msg); |
| 142 | return; |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | nfa_sys_sendmsg (p_msg); |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | /******************************************************************************* |
| 151 | ** |
| 152 | ** Function nfa_cho_proc_ndef_type_handler_evt |
| 153 | ** |
| 154 | ** Description Process events (registration and NDEF data) from NFA NDEF |
| 155 | ** Type Handler |
| 156 | ** |
| 157 | ** Returns tNFA_STATUS |
| 158 | ** |
| 159 | *******************************************************************************/ |
| 160 | void nfa_cho_proc_ndef_type_handler_evt (tNFA_CHO_INT_EVENT_DATA *p_evt_data) |
| 161 | { |
| 162 | tNFA_CHO_MSG_TYPE msg_type; |
| 163 | |
| 164 | if (p_evt_data->ndef_type_hdlr.event == NFA_NDEF_REGISTER_EVT) |
| 165 | { |
| 166 | if (p_evt_data->ndef_type_hdlr.data.ndef_reg.status == NFA_STATUS_OK) |
| 167 | { |
| 168 | /* store handle for deregistration */ |
| 169 | if (nfa_cho_cb.hs_ndef_type_handle == NFA_HANDLE_INVALID) |
| 170 | { |
| 171 | nfa_cho_cb.hs_ndef_type_handle = p_evt_data->ndef_type_hdlr.data.ndef_reg.ndef_type_handle; |
| 172 | } |
| 173 | else if (nfa_cho_cb.bt_ndef_type_handle == NFA_HANDLE_INVALID) |
| 174 | { |
| 175 | nfa_cho_cb.bt_ndef_type_handle = p_evt_data->ndef_type_hdlr.data.ndef_reg.ndef_type_handle; |
| 176 | } |
| 177 | else if (nfa_cho_cb.wifi_ndef_type_handle == NFA_HANDLE_INVALID) |
| 178 | { |
| 179 | nfa_cho_cb.wifi_ndef_type_handle = p_evt_data->ndef_type_hdlr.data.ndef_reg.ndef_type_handle; |
| 180 | } |
| 181 | } |
| 182 | } |
| 183 | else if (p_evt_data->ndef_type_hdlr.event == NFA_NDEF_DATA_EVT) |
| 184 | { |
| 185 | /* if negotiated handover is on going, then ignore static handover */ |
| 186 | if (nfa_cho_cb.state != NFA_CHO_ST_CONNECTED) |
| 187 | { |
| 188 | #if (BT_TRACE_PROTOCOL == TRUE) |
| 189 | DispNDEFMsg (p_evt_data->ndef_type_hdlr.data.ndef_data.p_data, |
| 190 | p_evt_data->ndef_type_hdlr.data.ndef_data.len, TRUE); |
| 191 | #endif |
| 192 | msg_type = nfa_cho_get_msg_type (p_evt_data->ndef_type_hdlr.data.ndef_data.len, |
| 193 | p_evt_data->ndef_type_hdlr.data.ndef_data.p_data); |
| 194 | |
| 195 | if (msg_type == NFA_CHO_MSG_HS) |
| 196 | { |
| 197 | nfa_cho_proc_hs (p_evt_data->ndef_type_hdlr.data.ndef_data.len, |
| 198 | p_evt_data->ndef_type_hdlr.data.ndef_data.p_data); |
| 199 | } |
| 200 | else if ( (msg_type == NFA_CHO_MSG_BT_OOB) |
| 201 | ||(msg_type == NFA_CHO_MSG_WIFI) ) |
| 202 | { |
| 203 | /* simplified BT OOB/Wifi Message */ |
| 204 | nfa_cho_proc_simplified_format (p_evt_data->ndef_type_hdlr.data.ndef_data.len, |
| 205 | p_evt_data->ndef_type_hdlr.data.ndef_data.p_data); |
| 206 | } |
| 207 | else |
| 208 | { |
| 209 | CHO_TRACE_ERROR0 ("Unexpected CHO Message Type"); |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | nfa_mem_co_free (p_evt_data->ndef_type_hdlr.data.ndef_data.p_data); |
| 214 | } |
| 215 | } |
| 216 | |
| 217 | /******************************************************************************* |
| 218 | ** |
| 219 | ** Function nfa_cho_proc_api_reg |
| 220 | ** |
| 221 | ** Description Process registeration request from application |
| 222 | ** Register Handover server on LLCP for negotiated handover |
| 223 | ** Register handover select records on NDEF handler for static handover |
| 224 | ** |
| 225 | ** Returns tNFA_STATUS |
| 226 | ** |
| 227 | *******************************************************************************/ |
| 228 | tNFA_STATUS nfa_cho_proc_api_reg (tNFA_CHO_INT_EVENT_DATA *p_evt_data) |
| 229 | { |
| 230 | CHO_TRACE_DEBUG1 ("nfa_cho_proc_api_reg (): enable_server=%d", |
| 231 | p_evt_data->api_reg.enable_server); |
| 232 | |
| 233 | if (p_evt_data->api_reg.enable_server == TRUE) |
| 234 | { |
| 235 | /* Register Handover server on LLCP for negotiated handover */ |
| 236 | nfa_cho_cb.server_sap = LLCP_RegisterServer (LLCP_INVALID_SAP, |
| 237 | LLCP_LINK_TYPE_DATA_LINK_CONNECTION, |
| 238 | p_cho_service_name, |
| 239 | nfa_cho_sm_llcp_cback); |
| 240 | if (nfa_cho_cb.server_sap == LLCP_INVALID_SAP) |
| 241 | { |
| 242 | CHO_TRACE_ERROR0 ("Cannot register CHO server"); |
| 243 | return NFA_STATUS_FAILED; |
| 244 | } |
| 245 | else |
| 246 | { |
| 247 | nfa_p2p_enable_listening (NFA_ID_CHO, FALSE); |
| 248 | } |
| 249 | } |
| 250 | else |
| 251 | { |
| 252 | /* |
| 253 | ** Register Handover client on LLCP for negotiated handover |
| 254 | ** LLCP will notify link status through callback |
| 255 | */ |
| 256 | nfa_cho_cb.client_sap = LLCP_RegisterClient (LLCP_LINK_TYPE_DATA_LINK_CONNECTION, |
| 257 | nfa_cho_sm_llcp_cback); |
| 258 | |
| 259 | if (nfa_cho_cb.client_sap == LLCP_INVALID_SAP) |
| 260 | { |
| 261 | CHO_TRACE_ERROR0 ("Cannot register CHO client"); |
| 262 | return NFA_STATUS_FAILED; |
| 263 | } |
| 264 | |
| 265 | /* set flag not to deregister client when disconnected */ |
| 266 | nfa_cho_cb.flags |= NFA_CHO_FLAGS_CLIENT_ONLY; |
| 267 | } |
| 268 | |
| 269 | /* Register handover select record on NDEF handler for static handover */ |
| 270 | if (nfa_cho_cb.hs_ndef_type_handle == NFA_HANDLE_INVALID) |
| 271 | { |
| 272 | NFA_RegisterNDefTypeHandler (TRUE, NFA_TNF_WKT, hs_rec_type, HS_REC_TYPE_LEN, |
| 273 | nfa_cho_ndef_cback); |
| 274 | } |
| 275 | if (nfa_cho_cb.bt_ndef_type_handle == NFA_HANDLE_INVALID) |
| 276 | { |
| 277 | NFA_RegisterNDefTypeHandler (TRUE, NFA_TNF_RFC2046_MEDIA, |
| 278 | p_bt_oob_rec_type, (UINT8) strlen ((char *) p_bt_oob_rec_type), |
| 279 | nfa_cho_ndef_cback); |
| 280 | } |
| 281 | if (nfa_cho_cb.wifi_ndef_type_handle == NFA_HANDLE_INVALID) |
| 282 | { |
| 283 | NFA_RegisterNDefTypeHandler (TRUE, NFA_TNF_RFC2046_MEDIA, |
| 284 | p_wifi_rec_type, (UINT8) strlen ((char *) p_wifi_rec_type), |
| 285 | nfa_cho_ndef_cback); |
| 286 | } |
| 287 | |
| 288 | nfa_cho_cb.p_cback = p_evt_data->api_reg.p_cback; |
| 289 | |
| 290 | return NFA_STATUS_OK; |
| 291 | } |
| 292 | |
| 293 | /******************************************************************************* |
| 294 | ** |
| 295 | ** Function nfa_cho_proc_api_dereg |
| 296 | ** |
| 297 | ** Description Process deregisteration request from application |
| 298 | ** Disconnect LLCP connection if any |
| 299 | ** Deregister callback from NDEF handler and NFA P2P |
| 300 | ** |
| 301 | ** Returns None |
| 302 | ** |
| 303 | *******************************************************************************/ |
| 304 | void nfa_cho_proc_api_dereg (void) |
| 305 | { |
| 306 | CHO_TRACE_DEBUG0 ("nfa_cho_proc_api_dereg ()"); |
| 307 | |
| 308 | /* Deregister outgoing connection, data link will be disconnected if any */ |
| 309 | if (nfa_cho_cb.client_sap != LLCP_INVALID_SAP) |
| 310 | { |
| 311 | LLCP_Deregister (nfa_cho_cb.client_sap); |
| 312 | nfa_cho_cb.client_sap = LLCP_INVALID_SAP; |
| 313 | } |
| 314 | |
| 315 | /* Close Connection Handover server in LLCP, data link will be disconnected if any */ |
| 316 | if (nfa_cho_cb.server_sap != LLCP_INVALID_SAP) |
| 317 | { |
| 318 | LLCP_Deregister (nfa_cho_cb.server_sap); |
| 319 | nfa_cho_cb.server_sap = LLCP_INVALID_SAP; |
| 320 | } |
| 321 | |
| 322 | /* Deregister type handler if any */ |
| 323 | if (nfa_cho_cb.hs_ndef_type_handle != NFA_HANDLE_INVALID) |
| 324 | { |
| 325 | NFA_DeregisterNDefTypeHandler (nfa_cho_cb.hs_ndef_type_handle); |
| 326 | nfa_cho_cb.hs_ndef_type_handle = NFA_HANDLE_INVALID; |
| 327 | } |
| 328 | |
| 329 | if (nfa_cho_cb.bt_ndef_type_handle != NFA_HANDLE_INVALID) |
| 330 | { |
| 331 | NFA_DeregisterNDefTypeHandler (nfa_cho_cb.bt_ndef_type_handle); |
| 332 | nfa_cho_cb.bt_ndef_type_handle = NFA_HANDLE_INVALID; |
| 333 | } |
| 334 | |
| 335 | if (nfa_cho_cb.wifi_ndef_type_handle != NFA_HANDLE_INVALID) |
| 336 | { |
| 337 | NFA_DeregisterNDefTypeHandler (nfa_cho_cb.wifi_ndef_type_handle); |
| 338 | nfa_cho_cb.wifi_ndef_type_handle = NFA_HANDLE_INVALID; |
| 339 | } |
| 340 | |
| 341 | nfa_sys_stop_timer (&nfa_cho_cb.timer); |
| 342 | nfa_cho_cb.p_cback = NULL; |
| 343 | nfa_cho_cb.flags = 0; |
| 344 | |
| 345 | nfa_p2p_disable_listening (NFA_ID_CHO, FALSE); |
| 346 | } |
| 347 | |
| 348 | /******************************************************************************* |
| 349 | ** |
| 350 | ** Function nfa_cho_create_connection |
| 351 | ** |
| 352 | ** Description Create data link connection with handover server in remote |
| 353 | ** |
| 354 | ** |
| 355 | ** Returns None |
| 356 | ** |
| 357 | *******************************************************************************/ |
| 358 | tNFA_STATUS nfa_cho_create_connection (void) |
| 359 | { |
| 360 | tLLCP_CONNECTION_PARAMS conn_params; |
| 361 | tNFA_STATUS status = NFA_STATUS_FAILED; |
| 362 | |
| 363 | CHO_TRACE_DEBUG0 ("nfa_cho_create_connection ()"); |
| 364 | |
| 365 | if (nfa_cho_cb.client_sap == LLCP_INVALID_SAP) |
| 366 | { |
| 367 | nfa_cho_cb.client_sap = LLCP_RegisterClient (LLCP_LINK_TYPE_DATA_LINK_CONNECTION, |
| 368 | nfa_cho_sm_llcp_cback); |
| 369 | } |
| 370 | |
| 371 | if (nfa_cho_cb.client_sap == LLCP_INVALID_SAP) |
| 372 | { |
| 373 | CHO_TRACE_ERROR0 ("Cannot register CHO client"); |
| 374 | } |
| 375 | else |
| 376 | { |
| 377 | /* create data link connection with server name */ |
| 378 | conn_params.miu = (UINT16) (nfa_cho_cb.local_link_miu >= NFA_CHO_MIU ? NFA_CHO_MIU : nfa_cho_cb.local_link_miu); |
| 379 | conn_params.rw = NFA_CHO_RW; |
| 380 | BCM_STRNCPY_S (conn_params.sn, sizeof (conn_params.sn), |
| 381 | p_cho_service_name, LLCP_MAX_SN_LEN); |
| 382 | conn_params.sn[LLCP_MAX_SN_LEN] = 0; |
| 383 | |
| 384 | if (LLCP_ConnectReq (nfa_cho_cb.client_sap, LLCP_SAP_SDP, &conn_params) == LLCP_STATUS_SUCCESS) |
| 385 | status = NFA_STATUS_OK; |
| 386 | } |
| 387 | |
| 388 | return status; |
| 389 | } |
| 390 | |
| 391 | /******************************************************************************* |
| 392 | ** |
| 393 | ** Function nfa_cho_process_disconnection |
| 394 | ** |
| 395 | ** Description Clean up buffers and notify disconnection to application |
| 396 | ** |
| 397 | ** |
| 398 | ** Returns None |
| 399 | ** |
| 400 | *******************************************************************************/ |
| 401 | void nfa_cho_process_disconnection (tNFA_CHO_DISC_REASON disc_reason) |
| 402 | { |
| 403 | tNFA_CHO_EVT_DATA evt_data; |
| 404 | |
| 405 | nfa_sys_stop_timer (&nfa_cho_cb.timer); |
| 406 | |
| 407 | /* free buffer for Tx/Rx NDEF message */ |
| 408 | if (nfa_cho_cb.p_tx_ndef_msg) |
| 409 | { |
| 410 | GKI_freebuf (nfa_cho_cb.p_tx_ndef_msg); |
| 411 | nfa_cho_cb.p_tx_ndef_msg = NULL; |
| 412 | } |
| 413 | if (nfa_cho_cb.p_rx_ndef_msg) |
| 414 | { |
| 415 | GKI_freebuf (nfa_cho_cb.p_rx_ndef_msg); |
| 416 | nfa_cho_cb.p_rx_ndef_msg = NULL; |
| 417 | } |
| 418 | |
| 419 | /* if no server is registered on LLCP, do not deregister client to get link statue from LLCP */ |
| 420 | if (!(nfa_cho_cb.flags & NFA_CHO_FLAGS_CLIENT_ONLY)) |
| 421 | { |
| 422 | if (nfa_cho_cb.client_sap != LLCP_INVALID_SAP) |
| 423 | { |
| 424 | LLCP_Deregister (nfa_cho_cb.client_sap); |
| 425 | nfa_cho_cb.client_sap = LLCP_INVALID_SAP; |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | nfa_cho_cb.flags &= ~NFA_CHO_FLAGS_CONN_COLLISION; |
| 430 | |
| 431 | evt_data.disconnected.reason = disc_reason; |
| 432 | nfa_cho_cb.p_cback (NFA_CHO_DISCONNECTED_EVT, &evt_data); |
| 433 | } |
| 434 | |
| 435 | /******************************************************************************* |
| 436 | ** |
| 437 | ** Function nfa_cho_notify_tx_fail_evt |
| 438 | ** |
| 439 | ** Description Notify application of NFA_CHO_TX_FAIL_EVT |
| 440 | ** |
| 441 | ** |
| 442 | ** Returns None |
| 443 | ** |
| 444 | *******************************************************************************/ |
| 445 | void nfa_cho_notify_tx_fail_evt (tNFA_STATUS status) |
| 446 | { |
| 447 | tNFA_CHO_EVT_DATA evt_data; |
| 448 | |
| 449 | CHO_TRACE_DEBUG0 ("nfa_cho_notify_tx_fail_evt ()"); |
| 450 | |
| 451 | evt_data.status = status; |
| 452 | |
| 453 | if (nfa_cho_cb.p_cback) |
| 454 | nfa_cho_cb.p_cback (NFA_CHO_TX_FAIL_EVT, &evt_data); |
| 455 | } |
| 456 | |
| 457 | /******************************************************************************* |
| 458 | ** |
| 459 | ** Function nfa_cho_reassemble_ho_msg |
| 460 | ** |
| 461 | ** Description Reassemble received data for handover message |
| 462 | ** |
| 463 | ** |
| 464 | ** Returns tNFA_CHO_RX_NDEF_STATUS |
| 465 | ** |
| 466 | *******************************************************************************/ |
| 467 | tNFA_CHO_RX_NDEF_STATUS nfa_cho_reassemble_ho_msg (UINT8 local_sap, UINT8 remote_sap) |
| 468 | { |
| 469 | tNFA_CHO_RX_NDEF_STATUS rx_status; |
| 470 | |
| 471 | nfa_sys_stop_timer (&nfa_cho_cb.timer); |
| 472 | |
| 473 | /* |
| 474 | ** allocate memory for NDEF message for the first segment |
| 475 | ** validate NDEF message to check if received complete message |
| 476 | */ |
| 477 | rx_status = nfa_cho_read_ndef_msg (local_sap, remote_sap); |
| 478 | |
| 479 | /* if Temporary Memory Constraint */ |
| 480 | if (rx_status == NFA_CHO_RX_NDEF_TEMP_MEM) |
| 481 | { |
| 482 | CHO_TRACE_ERROR0 ("Failed due to Temporary Memory Constraint"); |
| 483 | |
| 484 | /* if we are expecting Hr then send Hs Error record */ |
| 485 | if (nfa_cho_cb.substate == NFA_CHO_SUBSTATE_W4_REMOTE_HR) |
| 486 | { |
| 487 | /* ask retry later, handover request will disconnect */ |
| 488 | nfa_cho_send_hs_error (NFA_CHO_ERROR_TEMP_MEM, NFA_CHO_TIMEOUT_FOR_RETRY); |
| 489 | } |
| 490 | else |
| 491 | { |
| 492 | /* we cannot send error record, so disconnect */ |
| 493 | nfa_cho_cb.disc_reason = NFA_CHO_DISC_REASON_INTERNAL_ERROR; |
| 494 | LLCP_DisconnectReq (nfa_cho_cb.local_sap, nfa_cho_cb.remote_sap, FALSE); |
| 495 | } |
| 496 | } |
| 497 | /* Permanent Memory Constraint */ |
| 498 | else if (rx_status == NFA_CHO_RX_NDEF_PERM_MEM) |
| 499 | { |
| 500 | CHO_TRACE_ERROR0 ("Failed due to Permanent Memory Constraint"); |
| 501 | |
| 502 | /* if we are expecting Hr then send Hs Error record */ |
| 503 | if (nfa_cho_cb.substate == NFA_CHO_SUBSTATE_W4_REMOTE_HR) |
| 504 | { |
| 505 | /* |
| 506 | ** notify our buffer size and ask retry with modified message later |
| 507 | ** handover request will disconnect |
| 508 | */ |
| 509 | nfa_cho_send_hs_error (NFA_CHO_ERROR_PERM_MEM, nfa_cho_cb.rx_ndef_buf_size); |
| 510 | } |
| 511 | else |
| 512 | { |
| 513 | /* we cannot send error record, so disconnect */ |
| 514 | nfa_cho_cb.disc_reason = NFA_CHO_DISC_REASON_INTERNAL_ERROR; |
| 515 | LLCP_DisconnectReq (nfa_cho_cb.local_sap, nfa_cho_cb.remote_sap, FALSE); |
| 516 | } |
| 517 | } |
| 518 | /* Invalid NDEF message */ |
| 519 | else if (rx_status == NFA_CHO_RX_NDEF_INVALID) |
| 520 | { |
| 521 | CHO_TRACE_ERROR0 ("Failed due to invalid NDEF message"); |
| 522 | |
| 523 | if (nfa_cho_cb.substate == NFA_CHO_SUBSTATE_W4_REMOTE_HR) |
| 524 | { |
| 525 | /* let Handover Requester got timeout */ |
| 526 | } |
| 527 | else |
| 528 | { |
| 529 | /* we cannot send error record, so disconnect */ |
| 530 | nfa_cho_cb.disc_reason = NFA_CHO_DISC_REASON_INVALID_MSG; |
| 531 | LLCP_DisconnectReq (nfa_cho_cb.local_sap, nfa_cho_cb.remote_sap, FALSE); |
| 532 | } |
| 533 | } |
| 534 | /* need more segment */ |
| 535 | else if (rx_status == NFA_CHO_RX_NDEF_INCOMPLTE) |
| 536 | { |
| 537 | /* wait for next segment */ |
| 538 | if (nfa_cho_cb.substate == NFA_CHO_SUBSTATE_W4_REMOTE_HR) |
| 539 | { |
| 540 | nfa_sys_start_timer (&nfa_cho_cb.timer, 0, NFA_CHO_TIMEOUT_SEGMENTED_HR); |
| 541 | } |
| 542 | /* don't update running timer if we are waiting Hs */ |
| 543 | } |
| 544 | else /* NFA_CHO_RX_NDEF_COMPLETE */ |
| 545 | { |
| 546 | /* Received complete NDEF message */ |
| 547 | } |
| 548 | |
| 549 | return rx_status; |
| 550 | } |
| 551 | |
| 552 | /******************************************************************************* |
| 553 | ** |
| 554 | ** Function nfa_cho_send_handover_msg |
| 555 | ** |
| 556 | ** Description Send segmented or whole Handover Message on LLCP |
| 557 | ** if congested then wait for uncongested event from LLCP |
| 558 | ** |
| 559 | ** Returns tNFA_STATUS |
| 560 | ** |
| 561 | *******************************************************************************/ |
| 562 | tNFA_STATUS nfa_cho_send_handover_msg (void) |
| 563 | { |
| 564 | tNFA_STATUS status = NFA_STATUS_FAILED; |
| 565 | tLLCP_STATUS llcp_status; |
| 566 | UINT16 tx_size; |
| 567 | BT_HDR *p_msg; |
| 568 | UINT8 *p_src, *p_dst; |
| 569 | |
| 570 | CHO_TRACE_DEBUG2 ("nfa_cho_send_handover_msg () size=%d, sent=%d", |
| 571 | nfa_cho_cb.tx_ndef_cur_size, nfa_cho_cb.tx_ndef_sent_size); |
| 572 | |
| 573 | /* while data link connection is not congested */ |
| 574 | while ((!nfa_cho_cb.congested) && (nfa_cho_cb.tx_ndef_sent_size < nfa_cho_cb.tx_ndef_cur_size)) |
| 575 | { |
| 576 | /* select segment size as min (MIU of remote, remaining NDEF size) */ |
| 577 | if (nfa_cho_cb.tx_ndef_cur_size - nfa_cho_cb.tx_ndef_sent_size > nfa_cho_cb.remote_miu) |
| 578 | { |
| 579 | tx_size = nfa_cho_cb.remote_miu; |
| 580 | } |
| 581 | else |
| 582 | { |
| 583 | tx_size = (UINT16) (nfa_cho_cb.tx_ndef_cur_size - nfa_cho_cb.tx_ndef_sent_size); |
| 584 | } |
| 585 | |
| 586 | /* transmit a segment on LLCP */ |
| 587 | if ((p_msg = (BT_HDR *) GKI_getpoolbuf (LLCP_POOL_ID)) != NULL) |
| 588 | { |
| 589 | p_msg->len = (UINT16) tx_size; |
| 590 | p_msg->offset = LLCP_MIN_OFFSET; |
| 591 | |
| 592 | p_dst = (UINT8*) (p_msg + 1) + p_msg->offset; |
| 593 | p_src = nfa_cho_cb.p_tx_ndef_msg + nfa_cho_cb.tx_ndef_sent_size; |
| 594 | |
| 595 | memcpy (p_dst, p_src, tx_size); |
| 596 | |
| 597 | llcp_status = LLCP_SendData (nfa_cho_cb.local_sap, nfa_cho_cb.remote_sap, p_msg); |
| 598 | |
| 599 | nfa_cho_cb.tx_ndef_sent_size += tx_size; |
| 600 | } |
| 601 | else |
| 602 | { |
| 603 | llcp_status = LLCP_STATUS_FAIL; |
| 604 | } |
| 605 | |
| 606 | if (llcp_status == LLCP_STATUS_SUCCESS) |
| 607 | { |
| 608 | status = NFA_STATUS_OK; |
| 609 | } |
| 610 | else if (llcp_status == LLCP_STATUS_CONGESTED) |
| 611 | { |
| 612 | status = NFA_STATUS_CONGESTED; |
| 613 | CHO_TRACE_DEBUG0 ("Data link connection is congested"); |
| 614 | /* wait for uncongested event */ |
| 615 | nfa_cho_cb.congested = TRUE; |
| 616 | break; |
| 617 | } |
| 618 | else |
| 619 | { |
| 620 | status = NFA_STATUS_FAILED; |
| 621 | GKI_freebuf (nfa_cho_cb.p_tx_ndef_msg); |
| 622 | nfa_cho_cb.p_tx_ndef_msg = NULL; |
| 623 | break; |
| 624 | } |
| 625 | } |
| 626 | |
| 627 | /* |
| 628 | ** free buffer when receiving response or disconnected because we may need to send |
| 629 | ** Hr message again due to collision |
| 630 | */ |
| 631 | |
| 632 | return status; |
| 633 | } |
| 634 | |
| 635 | /******************************************************************************* |
| 636 | ** |
| 637 | ** Function nfa_cho_read_ndef_msg |
| 638 | ** |
| 639 | ** Description allocate memory for NDEF message for the first segment |
| 640 | ** validate NDEF message to check if received complete message |
| 641 | ** |
| 642 | ** Returns None |
| 643 | ** |
| 644 | *******************************************************************************/ |
| 645 | tNFA_CHO_RX_NDEF_STATUS nfa_cho_read_ndef_msg (UINT8 local_sap, UINT8 remote_sap) |
| 646 | { |
| 647 | tNDEF_STATUS ndef_status; |
| 648 | tNFA_CHO_RX_NDEF_STATUS rx_status; |
| 649 | BOOLEAN more; |
| 650 | UINT32 length; |
| 651 | |
| 652 | CHO_TRACE_DEBUG2 ("nfa_cho_read_ndef_msg () local_sap=0x%x, remote_sap=0x%x", |
| 653 | local_sap, remote_sap); |
| 654 | |
| 655 | /* if this is the first segment */ |
| 656 | if (!nfa_cho_cb.p_rx_ndef_msg) |
| 657 | { |
| 658 | nfa_cho_cb.p_rx_ndef_msg = (UINT8 *) GKI_getpoolbuf (LLCP_POOL_ID); |
| 659 | |
| 660 | if (!nfa_cho_cb.p_rx_ndef_msg) |
| 661 | { |
| 662 | CHO_TRACE_ERROR0 ("Failed to allocate buffer"); |
| 663 | return NFA_CHO_RX_NDEF_TEMP_MEM; |
| 664 | } |
| 665 | |
| 666 | nfa_cho_cb.rx_ndef_buf_size = LLCP_POOL_BUF_SIZE; |
| 667 | nfa_cho_cb.rx_ndef_cur_size = 0; |
| 668 | } |
| 669 | |
| 670 | more = TRUE; |
| 671 | while (more) |
| 672 | { |
| 673 | more = LLCP_ReadDataLinkData (local_sap, |
| 674 | remote_sap, |
| 675 | (UINT16)(nfa_cho_cb.rx_ndef_buf_size - nfa_cho_cb.rx_ndef_cur_size), |
| 676 | &length, |
| 677 | nfa_cho_cb.p_rx_ndef_msg + nfa_cho_cb.rx_ndef_cur_size); |
| 678 | |
| 679 | nfa_cho_cb.rx_ndef_cur_size += length; |
| 680 | |
| 681 | /* if it doesn't fit into allocated memory */ |
| 682 | if ((nfa_cho_cb.rx_ndef_cur_size >= nfa_cho_cb.rx_ndef_buf_size) |
| 683 | &&(more)) |
| 684 | { |
| 685 | CHO_TRACE_ERROR0 ("Failed to store too much data"); |
| 686 | |
| 687 | LLCP_FlushDataLinkRxData (local_sap, remote_sap); |
| 688 | |
| 689 | GKI_freebuf (nfa_cho_cb.p_rx_ndef_msg); |
| 690 | nfa_cho_cb.p_rx_ndef_msg = NULL; |
| 691 | |
| 692 | return NFA_CHO_RX_NDEF_PERM_MEM; |
| 693 | } |
| 694 | } |
| 695 | |
| 696 | /* check NDEF message */ |
| 697 | ndef_status = NDEF_MsgValidate (nfa_cho_cb.p_rx_ndef_msg, nfa_cho_cb.rx_ndef_cur_size, FALSE); |
| 698 | |
| 699 | switch (ndef_status) |
| 700 | { |
| 701 | case NDEF_OK: |
| 702 | rx_status = NFA_CHO_RX_NDEF_COMPLETE; |
| 703 | break; |
| 704 | |
| 705 | case NDEF_MSG_TOO_SHORT: |
| 706 | case NDEF_MSG_NO_MSG_END: |
| 707 | case NDEF_MSG_LENGTH_MISMATCH: |
| 708 | rx_status = NFA_CHO_RX_NDEF_INCOMPLTE; |
| 709 | break; |
| 710 | |
| 711 | default: |
| 712 | rx_status = NFA_CHO_RX_NDEF_INVALID; |
| 713 | break; |
| 714 | } |
| 715 | |
| 716 | if (rx_status == NFA_CHO_RX_NDEF_COMPLETE) |
| 717 | { |
| 718 | #if (BT_TRACE_PROTOCOL == TRUE) |
| 719 | DispCHO (nfa_cho_cb.p_rx_ndef_msg, nfa_cho_cb.rx_ndef_cur_size, TRUE); |
| 720 | #endif |
| 721 | } |
| 722 | else if (rx_status == NFA_CHO_RX_NDEF_INCOMPLTE) |
| 723 | { |
| 724 | CHO_TRACE_DEBUG0 ("Need more data to complete NDEF message"); |
| 725 | } |
| 726 | else /* if (rx_status == NFA_CHO_RX_NDEF_INVALID) */ |
| 727 | { |
| 728 | CHO_TRACE_ERROR1 ("Failed to validate NDEF message error=0x%x", ndef_status); |
| 729 | GKI_freebuf (nfa_cho_cb.p_rx_ndef_msg); |
| 730 | nfa_cho_cb.p_rx_ndef_msg = NULL; |
| 731 | } |
| 732 | |
| 733 | return rx_status; |
| 734 | } |
| 735 | |
| 736 | /******************************************************************************* |
| 737 | ** |
| 738 | ** Function nfa_cho_add_cr_record |
| 739 | ** |
| 740 | ** Description Adding Collision Resolution record |
| 741 | ** |
| 742 | ** |
| 743 | ** Returns NDEF_OK if success |
| 744 | ** |
| 745 | *******************************************************************************/ |
| 746 | tNDEF_STATUS nfa_cho_add_cr_record (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size) |
| 747 | { |
| 748 | tNDEF_STATUS status; |
| 749 | UINT32 temp32; |
| 750 | |
| 751 | CHO_TRACE_DEBUG1 ("nfa_cho_add_cr_record () cur_size = %d", *p_cur_size); |
| 752 | |
| 753 | /* Get random number from timer */ |
| 754 | temp32 = GKI_get_tick_count (); |
| 755 | nfa_cho_cb.tx_random_number = (UINT16) ((temp32 >> 16) ^ (temp32)); |
| 756 | |
| 757 | #if (defined (NFA_CHO_TEST_INCLUDED) && (NFA_CHO_TEST_INCLUDED == TRUE)) |
| 758 | if (nfa_cho_cb.test_enabled & NFA_CHO_TEST_RANDOM) |
| 759 | { |
| 760 | nfa_cho_cb.tx_random_number = nfa_cho_cb.test_random_number; |
| 761 | } |
| 762 | #endif |
| 763 | |
| 764 | CHO_TRACE_DEBUG1 ("tx_random_number = 0x%04x", nfa_cho_cb.tx_random_number); |
| 765 | |
| 766 | /* Add Well-Known Type:Collistion Resolution Record */ |
| 767 | status = NDEF_MsgAddWktCr (p_msg, max_size, p_cur_size, |
| 768 | nfa_cho_cb.tx_random_number); |
| 769 | |
| 770 | return status; |
| 771 | } |
| 772 | |
| 773 | /******************************************************************************* |
| 774 | ** |
| 775 | ** Function nfa_cho_add_ac_record |
| 776 | ** |
| 777 | ** Description Adding Alternative Carrier record |
| 778 | ** |
| 779 | ** |
| 780 | ** Returns NDEF_OK if success |
| 781 | ** |
| 782 | *******************************************************************************/ |
| 783 | tNDEF_STATUS nfa_cho_add_ac_record (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, |
| 784 | UINT8 num_ac_info, tNFA_CHO_AC_INFO *p_ac_info, |
| 785 | UINT8 *p_ndef, UINT32 max_ndef_size, UINT32 *p_cur_ndef_size) |
| 786 | { |
| 787 | tNDEF_STATUS status = NDEF_OK; |
| 788 | UINT8 xx, yy; |
| 789 | UINT8 *p_rec, *p_id, id_len; |
| 790 | char carrier_data_ref_str[NFA_CHO_MAX_REF_NAME_LEN]; |
| 791 | char *aux_data_ref[NFA_CHO_MAX_AUX_DATA_COUNT]; |
| 792 | char aux_data_ref_str[NFA_CHO_MAX_AUX_DATA_COUNT][NFA_CHO_MAX_REF_NAME_LEN]; |
| 793 | |
| 794 | CHO_TRACE_DEBUG1 ("nfa_cho_add_ac_record (): num_ac_info = %d", num_ac_info); |
| 795 | |
| 796 | /* initialize auxilary data reference */ |
| 797 | for (xx = 0; xx < NFA_CHO_MAX_AUX_DATA_COUNT; xx++) |
| 798 | { |
| 799 | aux_data_ref[xx] = aux_data_ref_str[xx]; |
| 800 | } |
| 801 | |
| 802 | p_rec = p_ndef; |
| 803 | |
| 804 | /* Alternative Carrier Records */ |
| 805 | for (xx = 0; (xx < num_ac_info) && (status == NDEF_OK); xx++) |
| 806 | { |
| 807 | if (!p_rec) |
| 808 | { |
| 809 | status = NDEF_REC_NOT_FOUND; |
| 810 | break; |
| 811 | } |
| 812 | |
| 813 | p_id = NDEF_RecGetId (p_rec, &id_len); |
| 814 | |
| 815 | if ((p_id) && (id_len > 0) && (id_len <= NFA_CHO_MAX_REF_NAME_LEN)) |
| 816 | { |
| 817 | memcpy (carrier_data_ref_str, p_id, id_len); |
| 818 | carrier_data_ref_str[id_len] = 0x00; |
| 819 | } |
| 820 | else |
| 821 | { |
| 822 | CHO_TRACE_ERROR1 ("nfa_cho_add_ac_record ():id_len=%d", id_len); |
| 823 | status = NDEF_REC_NOT_FOUND; |
| 824 | break; |
| 825 | } |
| 826 | |
| 827 | p_rec = NDEF_MsgGetNextRec (p_rec); |
| 828 | |
| 829 | /* auxilary data reference */ |
| 830 | for (yy = 0; yy < p_ac_info[xx].num_aux_data; yy++) |
| 831 | { |
| 832 | if (!p_rec) |
| 833 | { |
| 834 | status = NDEF_REC_NOT_FOUND; |
| 835 | break; |
| 836 | } |
| 837 | |
| 838 | p_id = NDEF_RecGetId (p_rec, &id_len); |
| 839 | |
| 840 | if ((p_id) && (id_len > 0) && (id_len <= NFA_CHO_MAX_REF_NAME_LEN)) |
| 841 | { |
| 842 | memcpy (aux_data_ref_str[yy], p_id, id_len); |
| 843 | aux_data_ref_str[yy][id_len] = 0x00; |
| 844 | } |
| 845 | else |
| 846 | { |
| 847 | CHO_TRACE_ERROR1 ("nfa_cho_add_ac_record ():id_len=%d", id_len); |
| 848 | status = NDEF_REC_NOT_FOUND; |
| 849 | break; |
| 850 | } |
| 851 | |
| 852 | p_rec = NDEF_MsgGetNextRec (p_rec); |
| 853 | } |
| 854 | |
| 855 | if (status == NDEF_OK) |
| 856 | { |
| 857 | /* Add Well-Known Type:Alternative Carrier Record */ |
| 858 | status = NDEF_MsgAddWktAc (p_msg, max_size, p_cur_size, |
| 859 | p_ac_info[xx].cps, carrier_data_ref_str, |
| 860 | p_ac_info[xx].num_aux_data, aux_data_ref); |
| 861 | } |
| 862 | |
| 863 | if (status != NDEF_OK) |
| 864 | { |
| 865 | break; |
| 866 | } |
| 867 | } |
| 868 | |
| 869 | return status; |
| 870 | } |
| 871 | |
| 872 | /******************************************************************************* |
| 873 | ** |
| 874 | ** Function nfa_cho_send_hr |
| 875 | ** |
| 876 | ** Description Sending Handover Request Message |
| 877 | ** It may send one from AC list to select a specific AC. |
| 878 | ** |
| 879 | ** Returns NFA_STATUS_OK if success |
| 880 | ** |
| 881 | *******************************************************************************/ |
| 882 | tNFA_STATUS nfa_cho_send_hr (tNFA_CHO_API_SEND_HR *p_api_send_hr) |
| 883 | { |
| 884 | tNDEF_STATUS status; |
| 885 | UINT8 *p_msg_cr_ac; |
| 886 | UINT32 cur_size_cr_ac, max_size; |
| 887 | UINT8 version; |
| 888 | |
| 889 | CHO_TRACE_DEBUG0 ("nfa_cho_send_hr ()"); |
| 890 | |
| 891 | /* Collistion Resolution Record and Alternative Carrier Records */ |
| 892 | |
| 893 | p_msg_cr_ac = (UINT8 *) GKI_getpoolbuf (LLCP_POOL_ID); |
| 894 | if (!p_msg_cr_ac) |
| 895 | { |
| 896 | CHO_TRACE_ERROR0 ("Failed to allocate buffer"); |
| 897 | return NFA_STATUS_NO_BUFFERS; |
| 898 | } |
| 899 | |
| 900 | max_size = LLCP_POOL_BUF_SIZE; |
| 901 | NDEF_MsgInit (p_msg_cr_ac, max_size, &cur_size_cr_ac); |
| 902 | |
| 903 | /* Collistion Resolution Record */ |
| 904 | if (NDEF_OK != nfa_cho_add_cr_record (p_msg_cr_ac, max_size, &cur_size_cr_ac)) |
| 905 | { |
| 906 | CHO_TRACE_ERROR0 ("Failed to add cr record"); |
| 907 | GKI_freebuf (p_msg_cr_ac); |
| 908 | return NFA_STATUS_FAILED; |
| 909 | } |
| 910 | |
| 911 | /* Alternative Carrier Records */ |
| 912 | if (NDEF_OK != nfa_cho_add_ac_record (p_msg_cr_ac, max_size, &cur_size_cr_ac, |
| 913 | p_api_send_hr->num_ac_info, p_api_send_hr->p_ac_info, |
| 914 | p_api_send_hr->p_ndef, p_api_send_hr->max_ndef_size, |
| 915 | &(p_api_send_hr->cur_ndef_size))) |
| 916 | { |
| 917 | CHO_TRACE_ERROR0 ("Failed to add ac record"); |
| 918 | GKI_freebuf (p_msg_cr_ac); |
| 919 | return NFA_STATUS_FAILED; |
| 920 | } |
| 921 | |
| 922 | /* Handover Request Message */ |
| 923 | |
| 924 | nfa_cho_cb.p_tx_ndef_msg = (UINT8 *) GKI_getpoolbuf (LLCP_POOL_ID); |
| 925 | if (!nfa_cho_cb.p_tx_ndef_msg) |
| 926 | { |
| 927 | CHO_TRACE_ERROR0 ("Failed to allocate buffer"); |
| 928 | GKI_freebuf (p_msg_cr_ac); |
| 929 | return NFA_STATUS_FAILED; |
| 930 | } |
| 931 | |
| 932 | max_size = LLCP_POOL_BUF_SIZE; |
| 933 | |
| 934 | /* Handover Request Record */ |
| 935 | version = NFA_CHO_VERSION; |
| 936 | |
| 937 | #if (defined (NFA_CHO_TEST_INCLUDED) && (NFA_CHO_TEST_INCLUDED == TRUE)) |
| 938 | if (nfa_cho_cb.test_enabled & NFA_CHO_TEST_VERSION) |
| 939 | { |
| 940 | version = nfa_cho_cb.test_version; |
| 941 | } |
| 942 | #endif |
| 943 | |
| 944 | status = NDEF_MsgCreateWktHr (nfa_cho_cb.p_tx_ndef_msg, max_size, &nfa_cho_cb.tx_ndef_cur_size, |
| 945 | version); |
| 946 | if (status != NDEF_OK) |
| 947 | { |
| 948 | CHO_TRACE_ERROR0 ("Failed to create Hr"); |
| 949 | GKI_freebuf (nfa_cho_cb.p_tx_ndef_msg); |
| 950 | nfa_cho_cb.p_tx_ndef_msg = NULL; |
| 951 | GKI_freebuf (p_msg_cr_ac); |
| 952 | return NFA_STATUS_FAILED; |
| 953 | } |
| 954 | |
| 955 | /* Append Collistion Resolution Record and Alternative Carrier Records */ |
| 956 | status = NDEF_MsgAppendPayload (nfa_cho_cb.p_tx_ndef_msg, max_size, &nfa_cho_cb.tx_ndef_cur_size, |
| 957 | nfa_cho_cb.p_tx_ndef_msg, p_msg_cr_ac, cur_size_cr_ac); |
| 958 | |
| 959 | GKI_freebuf (p_msg_cr_ac); |
| 960 | |
| 961 | if (status != NDEF_OK) |
| 962 | { |
| 963 | CHO_TRACE_ERROR0 ("Failed to add cr/ac record"); |
| 964 | GKI_freebuf (nfa_cho_cb.p_tx_ndef_msg); |
| 965 | nfa_cho_cb.p_tx_ndef_msg = NULL; |
| 966 | return NFA_STATUS_FAILED; |
| 967 | } |
| 968 | |
| 969 | |
| 970 | /* Append Alternative Carrier Reference Data or Handover Carrier Record */ |
| 971 | status = NDEF_MsgAppendRec (nfa_cho_cb.p_tx_ndef_msg, max_size, &nfa_cho_cb.tx_ndef_cur_size, |
| 972 | p_api_send_hr->p_ndef, p_api_send_hr->cur_ndef_size); |
| 973 | |
| 974 | if (status != NDEF_OK) |
| 975 | { |
| 976 | CHO_TRACE_ERROR0 ("Failed to add ac reference data or Hc record"); |
| 977 | GKI_freebuf (nfa_cho_cb.p_tx_ndef_msg); |
| 978 | nfa_cho_cb.p_tx_ndef_msg = NULL; |
| 979 | return NFA_STATUS_FAILED; |
| 980 | } |
| 981 | |
| 982 | #if (BT_TRACE_PROTOCOL == TRUE) |
| 983 | DispCHO (nfa_cho_cb.p_tx_ndef_msg, nfa_cho_cb.tx_ndef_cur_size, FALSE); |
| 984 | #endif |
| 985 | |
| 986 | /* Send it to peer */ |
| 987 | nfa_cho_cb.tx_ndef_sent_size = 0; |
| 988 | |
| 989 | status = nfa_cho_send_handover_msg (); |
| 990 | |
| 991 | if (status == NFA_STATUS_CONGESTED) |
| 992 | { |
| 993 | status = NFA_STATUS_OK; |
| 994 | } |
| 995 | |
| 996 | return status; |
| 997 | } |
| 998 | |
| 999 | /******************************************************************************* |
| 1000 | ** |
| 1001 | ** Function nfa_cho_send_hs |
| 1002 | ** |
| 1003 | ** Description Send Handover Select Message |
| 1004 | ** |
| 1005 | ** |
| 1006 | ** Returns NFA_STATUS_OK if success |
| 1007 | ** |
| 1008 | *******************************************************************************/ |
| 1009 | tNFA_STATUS nfa_cho_send_hs (tNFA_CHO_API_SEND_HS *p_api_select) |
| 1010 | { |
| 1011 | tNDEF_STATUS status; |
| 1012 | UINT8 *p_msg_ac; |
| 1013 | UINT32 cur_size_ac = 0, max_size; |
| 1014 | UINT8 version; |
| 1015 | |
| 1016 | CHO_TRACE_DEBUG1 ("nfa_cho_send_hs () num_ac_info=%d", p_api_select->num_ac_info); |
| 1017 | |
| 1018 | if (p_api_select->num_ac_info > 0) |
| 1019 | { |
| 1020 | /* Alternative Carrier Records */ |
| 1021 | |
| 1022 | p_msg_ac = (UINT8 *) GKI_getpoolbuf (LLCP_POOL_ID); |
| 1023 | |
| 1024 | if (!p_msg_ac) |
| 1025 | { |
| 1026 | CHO_TRACE_ERROR0 ("Failed to allocate buffer"); |
| 1027 | return NFA_STATUS_FAILED; |
| 1028 | } |
| 1029 | |
| 1030 | max_size = LLCP_POOL_BUF_SIZE; |
| 1031 | NDEF_MsgInit (p_msg_ac, max_size, &cur_size_ac); |
| 1032 | |
| 1033 | if (NDEF_OK != nfa_cho_add_ac_record (p_msg_ac, max_size, &cur_size_ac, |
| 1034 | p_api_select->num_ac_info, p_api_select->p_ac_info, |
| 1035 | p_api_select->p_ndef, p_api_select->max_ndef_size, |
| 1036 | &(p_api_select->cur_ndef_size))) |
| 1037 | { |
| 1038 | CHO_TRACE_ERROR0 ("Failed to add ac record"); |
| 1039 | GKI_freebuf (p_msg_ac); |
| 1040 | return NFA_STATUS_FAILED; |
| 1041 | } |
| 1042 | } |
| 1043 | else |
| 1044 | { |
| 1045 | p_msg_ac = NULL; |
| 1046 | } |
| 1047 | |
| 1048 | /* Handover Select Message */ |
| 1049 | nfa_cho_cb.p_tx_ndef_msg = (UINT8 *) GKI_getpoolbuf (LLCP_POOL_ID); |
| 1050 | |
| 1051 | if (!nfa_cho_cb.p_tx_ndef_msg) |
| 1052 | { |
| 1053 | CHO_TRACE_ERROR0 ("Failed to allocate buffer"); |
| 1054 | |
| 1055 | if (p_msg_ac) |
| 1056 | GKI_freebuf (p_msg_ac); |
| 1057 | |
| 1058 | return NFA_STATUS_FAILED; |
| 1059 | } |
| 1060 | max_size = LLCP_POOL_BUF_SIZE; |
| 1061 | |
| 1062 | /* Handover Select Record */ |
| 1063 | version = NFA_CHO_VERSION; |
| 1064 | |
| 1065 | #if (defined (NFA_CHO_TEST_INCLUDED) && (NFA_CHO_TEST_INCLUDED == TRUE)) |
| 1066 | if (nfa_cho_cb.test_enabled & NFA_CHO_TEST_VERSION) |
| 1067 | { |
| 1068 | version = nfa_cho_cb.test_version; |
| 1069 | } |
| 1070 | #endif |
| 1071 | status = NDEF_MsgCreateWktHs (nfa_cho_cb.p_tx_ndef_msg, max_size, &nfa_cho_cb.tx_ndef_cur_size, |
| 1072 | version); |
| 1073 | |
| 1074 | if (status != NDEF_OK) |
| 1075 | { |
| 1076 | CHO_TRACE_ERROR0 ("Failed to create Hs"); |
| 1077 | |
| 1078 | GKI_freebuf (nfa_cho_cb.p_tx_ndef_msg); |
| 1079 | nfa_cho_cb.p_tx_ndef_msg = NULL; |
| 1080 | |
| 1081 | if (p_msg_ac) |
| 1082 | GKI_freebuf (p_msg_ac); |
| 1083 | |
| 1084 | return NFA_STATUS_FAILED; |
| 1085 | } |
| 1086 | |
| 1087 | if (p_api_select->num_ac_info > 0) |
| 1088 | { |
| 1089 | /* Append Alternative Carrier Records */ |
| 1090 | status = NDEF_MsgAppendPayload (nfa_cho_cb.p_tx_ndef_msg, max_size, &nfa_cho_cb.tx_ndef_cur_size, |
| 1091 | nfa_cho_cb.p_tx_ndef_msg, p_msg_ac, cur_size_ac); |
| 1092 | |
| 1093 | if (p_msg_ac) |
| 1094 | GKI_freebuf (p_msg_ac); |
| 1095 | |
| 1096 | if (status != NDEF_OK) |
| 1097 | { |
| 1098 | CHO_TRACE_ERROR0 ("Failed to add cr record"); |
| 1099 | GKI_freebuf (nfa_cho_cb.p_tx_ndef_msg); |
| 1100 | nfa_cho_cb.p_tx_ndef_msg = NULL; |
| 1101 | return NFA_STATUS_FAILED; |
| 1102 | } |
| 1103 | |
| 1104 | /* Append Alternative Carrier Reference Data */ |
| 1105 | status = NDEF_MsgAppendRec (nfa_cho_cb.p_tx_ndef_msg, max_size, &nfa_cho_cb.tx_ndef_cur_size, |
| 1106 | p_api_select->p_ndef, p_api_select->cur_ndef_size); |
| 1107 | |
| 1108 | if (status != NDEF_OK) |
| 1109 | { |
| 1110 | CHO_TRACE_ERROR0 ("Failed to add ac reference data record"); |
| 1111 | GKI_freebuf (nfa_cho_cb.p_tx_ndef_msg); |
| 1112 | nfa_cho_cb.p_tx_ndef_msg = NULL; |
| 1113 | return NFA_STATUS_FAILED; |
| 1114 | } |
| 1115 | } |
| 1116 | |
| 1117 | #if (BT_TRACE_PROTOCOL == TRUE) |
| 1118 | DispCHO (nfa_cho_cb.p_tx_ndef_msg, nfa_cho_cb.tx_ndef_cur_size, FALSE); |
| 1119 | #endif |
| 1120 | |
| 1121 | /* Send it to peer */ |
| 1122 | nfa_cho_cb.tx_ndef_sent_size = 0; |
| 1123 | |
| 1124 | status = nfa_cho_send_handover_msg (); |
| 1125 | |
| 1126 | if (status == NFA_STATUS_CONGESTED) |
| 1127 | { |
| 1128 | status = NFA_STATUS_OK; |
| 1129 | } |
| 1130 | return status; |
| 1131 | } |
| 1132 | |
| 1133 | /******************************************************************************* |
| 1134 | ** |
| 1135 | ** Function nfa_cho_send_hs_error |
| 1136 | ** |
| 1137 | ** Description Sending Handover Select Message with error record |
| 1138 | ** |
| 1139 | ** |
| 1140 | ** Returns NFA_STATUS_OK if success |
| 1141 | ** |
| 1142 | *******************************************************************************/ |
| 1143 | tNFA_STATUS nfa_cho_send_hs_error (UINT8 error_reason, UINT32 error_data) |
| 1144 | { |
| 1145 | tNDEF_STATUS status; |
| 1146 | UINT8 version; |
| 1147 | UINT32 max_size; |
| 1148 | |
| 1149 | CHO_TRACE_DEBUG2 ("nfa_cho_send_hs_error () error_reason=0x%x, error_data=0x%x", |
| 1150 | error_reason, error_data); |
| 1151 | |
| 1152 | /* Handover Select Message */ |
| 1153 | nfa_cho_cb.p_tx_ndef_msg = (UINT8 *) GKI_getpoolbuf (LLCP_POOL_ID); |
| 1154 | |
| 1155 | if (!nfa_cho_cb.p_tx_ndef_msg) |
| 1156 | { |
| 1157 | CHO_TRACE_ERROR0 ("Failed to allocate buffer"); |
| 1158 | return NFA_STATUS_FAILED; |
| 1159 | } |
| 1160 | |
| 1161 | max_size = LLCP_POOL_BUF_SIZE; |
| 1162 | |
| 1163 | /* Handover Select Record with Version */ |
| 1164 | version = NFA_CHO_VERSION; |
| 1165 | |
| 1166 | #if (defined (NFA_CHO_TEST_INCLUDED) && (NFA_CHO_TEST_INCLUDED == TRUE)) |
| 1167 | if (nfa_cho_cb.test_enabled & NFA_CHO_TEST_VERSION) |
| 1168 | { |
| 1169 | version = nfa_cho_cb.test_version; |
| 1170 | } |
| 1171 | #endif |
| 1172 | status = NDEF_MsgCreateWktHs (nfa_cho_cb.p_tx_ndef_msg, max_size, &nfa_cho_cb.tx_ndef_cur_size, |
| 1173 | version); |
| 1174 | |
| 1175 | if (status != NDEF_OK) |
| 1176 | { |
| 1177 | CHO_TRACE_ERROR0 ("Failed to create Hs"); |
| 1178 | |
| 1179 | GKI_freebuf (nfa_cho_cb.p_tx_ndef_msg); |
| 1180 | nfa_cho_cb.p_tx_ndef_msg = NULL; |
| 1181 | |
| 1182 | return NFA_STATUS_FAILED; |
| 1183 | } |
| 1184 | |
| 1185 | /* Add Error Records */ |
| 1186 | status = NDEF_MsgAddWktErr (nfa_cho_cb.p_tx_ndef_msg, max_size, &nfa_cho_cb.tx_ndef_cur_size, |
| 1187 | error_reason, error_data); |
| 1188 | |
| 1189 | if (status != NDEF_OK) |
| 1190 | { |
| 1191 | CHO_TRACE_ERROR0 ("Failed to add err record"); |
| 1192 | |
| 1193 | GKI_freebuf (nfa_cho_cb.p_tx_ndef_msg); |
| 1194 | nfa_cho_cb.p_tx_ndef_msg = NULL; |
| 1195 | |
| 1196 | return NFA_STATUS_FAILED; |
| 1197 | } |
| 1198 | |
| 1199 | #if (BT_TRACE_PROTOCOL == TRUE) |
| 1200 | DispCHO (nfa_cho_cb.p_tx_ndef_msg, nfa_cho_cb.tx_ndef_cur_size, FALSE); |
| 1201 | #endif |
| 1202 | |
| 1203 | /* Send it to peer */ |
| 1204 | nfa_cho_cb.tx_ndef_sent_size = 0; |
| 1205 | |
| 1206 | status = nfa_cho_send_handover_msg (); |
| 1207 | |
| 1208 | if (status == NFA_STATUS_CONGESTED) |
| 1209 | { |
| 1210 | status = NFA_STATUS_OK; |
| 1211 | } |
| 1212 | return status; |
| 1213 | } |
| 1214 | |
| 1215 | /******************************************************************************* |
| 1216 | ** |
| 1217 | ** Function nfa_cho_get_random_number |
| 1218 | ** |
| 1219 | ** Description Return random number in Handover Request message |
| 1220 | ** |
| 1221 | ** |
| 1222 | ** Returns random number in "cr" record |
| 1223 | ** |
| 1224 | *******************************************************************************/ |
| 1225 | UINT16 nfa_cho_get_random_number (UINT8 *p_ndef_msg) |
| 1226 | { |
| 1227 | UINT16 random_number; |
| 1228 | UINT8 *p_cr_record, *p_cr_payload; |
| 1229 | UINT32 cr_payload_len; |
| 1230 | |
| 1231 | CHO_TRACE_DEBUG0 ("nfa_cho_get_random_number ()"); |
| 1232 | |
| 1233 | /* find Collision Resolution record */ |
| 1234 | p_cr_record = NDEF_MsgGetFirstRecByType (p_ndef_msg, NDEF_TNF_WKT, cr_rec_type, CR_REC_TYPE_LEN); |
| 1235 | |
| 1236 | if (!p_cr_record) |
| 1237 | { |
| 1238 | CHO_TRACE_ERROR0 ("Failed to find cr record"); |
| 1239 | return 0; |
| 1240 | } |
| 1241 | |
| 1242 | /* get start of payload in Collision Resolution record */ |
| 1243 | p_cr_payload = NDEF_RecGetPayload (p_cr_record, &cr_payload_len); |
| 1244 | |
| 1245 | if ((!p_cr_payload) || (cr_payload_len != 2)) |
| 1246 | { |
| 1247 | CHO_TRACE_ERROR0 ("Failed to get cr payload (random number)"); |
| 1248 | return 0; |
| 1249 | } |
| 1250 | |
| 1251 | /* get random number from payload */ |
| 1252 | BE_STREAM_TO_UINT16 (random_number, p_cr_payload); |
| 1253 | |
| 1254 | return random_number; |
| 1255 | } |
| 1256 | |
| 1257 | /******************************************************************************* |
| 1258 | ** |
| 1259 | ** Function nfa_cho_parse_ac_records |
| 1260 | ** |
| 1261 | ** Description Parsing NDEF message to retrieve Alternative Carrier records |
| 1262 | ** and store into tNFA_CHO_AC_REC |
| 1263 | ** |
| 1264 | ** Returns tNFA_STATUS |
| 1265 | ** |
| 1266 | *******************************************************************************/ |
| 1267 | tNFA_STATUS nfa_cho_parse_ac_records (UINT8 *p_ndef_msg, UINT8 *p_num_ac_rec, tNFA_CHO_AC_REC *p_ac_rec) |
| 1268 | { |
| 1269 | UINT8 *p_ac_record, *p_ac_payload; |
| 1270 | UINT32 ac_payload_len; |
| 1271 | |
| 1272 | UINT8 xx, yy; |
| 1273 | |
| 1274 | CHO_TRACE_DEBUG0 ("nfa_cho_parse_ac_records ()"); |
| 1275 | |
| 1276 | /* get Alternative Carrier record */ |
| 1277 | p_ac_record = NDEF_MsgGetFirstRecByType (p_ndef_msg, NDEF_TNF_WKT, ac_rec_type, AC_REC_TYPE_LEN); |
| 1278 | |
| 1279 | xx = 0; |
| 1280 | |
| 1281 | while ((p_ac_record) && (xx < NFA_CHO_MAX_AC_INFO)) |
| 1282 | { |
| 1283 | /* get payload */ |
| 1284 | p_ac_payload = NDEF_RecGetPayload (p_ac_record, &ac_payload_len); |
| 1285 | |
| 1286 | if ((!p_ac_payload) || (ac_payload_len < 3)) |
| 1287 | { |
| 1288 | CHO_TRACE_ERROR0 ("Failed to get ac payload"); |
| 1289 | return NFA_STATUS_FAILED; |
| 1290 | } |
| 1291 | |
| 1292 | /* Carrier Power State */ |
| 1293 | BE_STREAM_TO_UINT8 (p_ac_rec->cps, p_ac_payload); |
| 1294 | |
| 1295 | /* Carrier Data Reference Length and Characters */ |
| 1296 | BE_STREAM_TO_UINT8 (p_ac_rec->carrier_data_ref.ref_len, p_ac_payload); |
| 1297 | |
| 1298 | ac_payload_len -= 2; |
| 1299 | |
| 1300 | /* remaining must have carrier data ref and Auxiliary Data Reference Count at least */ |
| 1301 | if (ac_payload_len > p_ac_rec->carrier_data_ref.ref_len) |
| 1302 | { |
| 1303 | if (p_ac_rec->carrier_data_ref.ref_len > NFA_CHO_MAX_REF_NAME_LEN) |
| 1304 | { |
| 1305 | CHO_TRACE_ERROR1 ("Too many bytes for carrier_data_ref, ref_len = %d", |
| 1306 | p_ac_rec->carrier_data_ref.ref_len); |
| 1307 | return NFA_STATUS_FAILED; |
| 1308 | } |
| 1309 | |
| 1310 | BE_STREAM_TO_ARRAY (p_ac_payload, |
| 1311 | p_ac_rec->carrier_data_ref.ref_name, |
| 1312 | p_ac_rec->carrier_data_ref.ref_len); |
| 1313 | ac_payload_len -= p_ac_rec->carrier_data_ref.ref_len; |
| 1314 | } |
| 1315 | else |
| 1316 | { |
| 1317 | CHO_TRACE_ERROR0 ("Failed to parse carrier_data_ref.ref_len"); |
| 1318 | return NFA_STATUS_FAILED; |
| 1319 | } |
| 1320 | |
| 1321 | /* Auxiliary Data Reference Count */ |
| 1322 | BE_STREAM_TO_UINT8 (p_ac_rec->aux_data_ref_count, p_ac_payload); |
| 1323 | ac_payload_len--; |
| 1324 | |
| 1325 | /* Auxiliary Data Reference Length and Characters */ |
| 1326 | for (yy = 0; (yy < p_ac_rec->aux_data_ref_count) && (yy < NFA_CHO_MAX_AUX_DATA_COUNT); yy++) |
| 1327 | { |
| 1328 | if (ac_payload_len > 0) |
| 1329 | { |
| 1330 | BE_STREAM_TO_UINT8 (p_ac_rec->aux_data_ref[yy].ref_len, p_ac_payload); |
| 1331 | ac_payload_len--; |
| 1332 | |
| 1333 | if (ac_payload_len >= p_ac_rec->aux_data_ref[yy].ref_len) |
| 1334 | { |
| 1335 | if (p_ac_rec->aux_data_ref[yy].ref_len > NFA_CHO_MAX_REF_NAME_LEN) |
| 1336 | { |
| 1337 | CHO_TRACE_ERROR2 ("Too many bytes for aux_data_ref[%d], ref_len=%d", |
| 1338 | yy, p_ac_rec->aux_data_ref[yy].ref_len); |
| 1339 | return NFA_STATUS_FAILED; |
| 1340 | } |
| 1341 | |
| 1342 | BE_STREAM_TO_ARRAY (p_ac_payload, |
| 1343 | p_ac_rec->aux_data_ref[yy].ref_name, |
| 1344 | p_ac_rec->aux_data_ref[yy].ref_len); |
| 1345 | ac_payload_len -= p_ac_rec->aux_data_ref[yy].ref_len; |
| 1346 | } |
| 1347 | else |
| 1348 | { |
| 1349 | CHO_TRACE_ERROR1 ("Failed to parse ref_name for aux_data_ref[%d]", yy); |
| 1350 | return NFA_STATUS_FAILED; |
| 1351 | } |
| 1352 | } |
| 1353 | else |
| 1354 | { |
| 1355 | CHO_TRACE_ERROR1 ("Failed to parse ref_len for aux_data_ref[%d]", yy); |
| 1356 | return NFA_STATUS_FAILED; |
| 1357 | } |
| 1358 | } |
| 1359 | |
| 1360 | if (ac_payload_len != 0) |
| 1361 | { |
| 1362 | CHO_TRACE_WARNING1 ("Found extra data in AC record[%d]", xx); |
| 1363 | } |
| 1364 | |
| 1365 | xx++; |
| 1366 | p_ac_rec++; |
| 1367 | |
| 1368 | /* get next Alternative Carrier record */ |
| 1369 | p_ac_record = NDEF_MsgGetNextRecByType (p_ac_record, NDEF_TNF_WKT, ac_rec_type, AC_REC_TYPE_LEN); |
| 1370 | } |
| 1371 | |
| 1372 | *p_num_ac_rec = xx; |
| 1373 | |
| 1374 | return NFA_STATUS_OK; |
| 1375 | } |
| 1376 | |
| 1377 | /******************************************************************************* |
| 1378 | ** |
| 1379 | ** Function nfa_cho_parse_hr_record |
| 1380 | ** |
| 1381 | ** Description Parsing Handover Request message to retrieve version, random number, |
| 1382 | ** Alternative Carrier records and store into tNFA_CHO_AC_REC |
| 1383 | ** |
| 1384 | ** |
| 1385 | ** Returns tNFA_STATUS |
| 1386 | ** |
| 1387 | *******************************************************************************/ |
| 1388 | tNFA_STATUS nfa_cho_parse_hr_record (UINT8 *p_ndef_msg, |
| 1389 | UINT8 *p_version, |
| 1390 | UINT16 *p_random_number, |
| 1391 | UINT8 *p_num_ac_rec, |
| 1392 | tNFA_CHO_AC_REC *p_ac_rec) |
| 1393 | { |
| 1394 | UINT8 *p_hr_record, *p_hr_payload; |
| 1395 | UINT32 hr_payload_len; |
| 1396 | |
| 1397 | CHO_TRACE_DEBUG0 ("nfa_cho_parse_hr_record ()"); |
| 1398 | |
| 1399 | /* get Handover Request record */ |
| 1400 | p_hr_record = NDEF_MsgGetFirstRecByType (p_ndef_msg, NDEF_TNF_WKT, hr_rec_type, HR_REC_TYPE_LEN); |
| 1401 | |
| 1402 | if (!p_hr_record) |
| 1403 | { |
| 1404 | CHO_TRACE_ERROR0 ("Failed to find Hr record"); |
| 1405 | return NFA_STATUS_FAILED; |
| 1406 | } |
| 1407 | |
| 1408 | p_hr_payload = NDEF_RecGetPayload (p_hr_record, &hr_payload_len); |
| 1409 | |
| 1410 | if ((!p_hr_payload) || (hr_payload_len < 7)) |
| 1411 | { |
| 1412 | CHO_TRACE_ERROR0 ("Failed to get Hr payload (version, cr/ac record)"); |
| 1413 | return NFA_STATUS_FAILED; |
| 1414 | } |
| 1415 | |
| 1416 | /* Version */ |
| 1417 | STREAM_TO_UINT8 ((*p_version), p_hr_payload); |
| 1418 | hr_payload_len--; |
| 1419 | |
| 1420 | /* NDEF message for Collision Resolution record and Alternative Carrier records */ |
| 1421 | |
| 1422 | if (NDEF_OK != NDEF_MsgValidate (p_hr_payload, hr_payload_len, FALSE)) |
| 1423 | { |
| 1424 | CHO_TRACE_ERROR0 ("Failed to validate NDEF message for cr/ac records"); |
| 1425 | return NFA_STATUS_FAILED; |
| 1426 | } |
| 1427 | |
| 1428 | /* Collision Resolution record */ |
| 1429 | if (p_random_number) |
| 1430 | { |
| 1431 | *p_random_number = nfa_cho_get_random_number (p_hr_payload); |
| 1432 | } |
| 1433 | |
| 1434 | /* Alternative Carrier records */ |
| 1435 | if (p_ac_rec) |
| 1436 | { |
| 1437 | return (nfa_cho_parse_ac_records (p_hr_payload, p_num_ac_rec, p_ac_rec)); |
| 1438 | } |
| 1439 | |
| 1440 | return NFA_STATUS_OK; |
| 1441 | } |
| 1442 | |
| 1443 | /******************************************************************************* |
| 1444 | ** |
| 1445 | ** Function nfa_cho_parse_carrier_config |
| 1446 | ** |
| 1447 | ** Description Parse Alternative Carrier Configuration and Aux Data |
| 1448 | ** |
| 1449 | ** |
| 1450 | ** Returns tNFA_STATUS |
| 1451 | ** |
| 1452 | *******************************************************************************/ |
| 1453 | tNFA_STATUS nfa_cho_parse_carrier_config (UINT8 *p_ndef_msg, UINT8 num_ac_rec, tNFA_CHO_AC_REC *p_ac_rec) |
| 1454 | { |
| 1455 | UINT8 *p_record; |
| 1456 | UINT8 xx, yy; |
| 1457 | |
| 1458 | CHO_TRACE_DEBUG1 ("nfa_cho_parse_carrier_config () num_ac_rec = %d", num_ac_rec); |
| 1459 | |
| 1460 | /* Parse Alternative Carrier Configuration and Aux Data */ |
| 1461 | for (xx = 0; xx < num_ac_rec; xx++) |
| 1462 | { |
| 1463 | p_record = NDEF_MsgGetFirstRecById (p_ndef_msg, |
| 1464 | p_ac_rec->carrier_data_ref.ref_name, |
| 1465 | p_ac_rec->carrier_data_ref.ref_len); |
| 1466 | |
| 1467 | if (!p_record) |
| 1468 | { |
| 1469 | CHO_TRACE_ERROR2 ("Failed to find Payload ID: len=%d, [0x%x ...]", |
| 1470 | p_ac_rec->carrier_data_ref.ref_len, |
| 1471 | p_ac_rec->carrier_data_ref.ref_name[0]); |
| 1472 | return NFA_STATUS_FAILED; |
| 1473 | } |
| 1474 | |
| 1475 | for (yy = 0; yy < p_ac_rec->aux_data_ref_count; yy++) |
| 1476 | { |
| 1477 | /* Get aux data record by Payload ID */ |
| 1478 | p_record = NDEF_MsgGetFirstRecById (p_ndef_msg, |
| 1479 | p_ac_rec->aux_data_ref[yy].ref_name, |
| 1480 | p_ac_rec->aux_data_ref[yy].ref_len); |
| 1481 | |
| 1482 | if (!p_record) |
| 1483 | { |
| 1484 | CHO_TRACE_ERROR2 ("Failed to find Payload ID for Aux: len=%d, [0x%x ...]", |
| 1485 | p_ac_rec->aux_data_ref[yy].ref_len, |
| 1486 | p_ac_rec->aux_data_ref[yy].ref_name[0]); |
| 1487 | return NFA_STATUS_FAILED; |
| 1488 | } |
| 1489 | } |
| 1490 | |
| 1491 | p_ac_rec++; |
| 1492 | } |
| 1493 | |
| 1494 | return NFA_STATUS_OK; |
| 1495 | } |
| 1496 | |
| 1497 | /******************************************************************************* |
| 1498 | ** |
| 1499 | ** Function nfa_cho_proc_hr |
| 1500 | ** |
| 1501 | ** Description Parse Handover Request Message |
| 1502 | ** In case of parsing error, let peer got timeout (1 sec). |
| 1503 | ** |
| 1504 | ** |
| 1505 | ** Returns None |
| 1506 | ** |
| 1507 | *******************************************************************************/ |
| 1508 | void nfa_cho_proc_hr (UINT32 length, UINT8 *p_ndef_msg) |
| 1509 | { |
| 1510 | tNFA_CHO_EVT_DATA evt_data; |
| 1511 | tNFA_CHO_API_SEND_HS select; |
| 1512 | UINT8 version; |
| 1513 | UINT16 random_number; |
| 1514 | |
| 1515 | CHO_TRACE_DEBUG1 ("nfa_cho_proc_hr () length=%d", length); |
| 1516 | |
| 1517 | /* Parse Handover Request record */ |
| 1518 | if (NDEF_OK != nfa_cho_parse_hr_record (p_ndef_msg, &version, &random_number, |
| 1519 | &evt_data.request.num_ac_rec, |
| 1520 | &evt_data.request.ac_rec[0])) |
| 1521 | { |
| 1522 | CHO_TRACE_ERROR0 ("Failed to parse hr record"); |
| 1523 | return; |
| 1524 | } |
| 1525 | |
| 1526 | if (version != NFA_CHO_VERSION) |
| 1527 | { |
| 1528 | CHO_TRACE_DEBUG1 ("Version (0x%02x) not matched", version); |
| 1529 | /* For the future, */ |
| 1530 | /* if we have higher major then support peer's version */ |
| 1531 | /* if we have lower major then send empty handover select message */ |
| 1532 | if (NFA_CHO_GET_MAJOR_VERSION (version) > NFA_CHO_GET_MAJOR_VERSION (NFA_CHO_VERSION)) |
| 1533 | { |
| 1534 | select.num_ac_info = 0; |
| 1535 | nfa_cho_send_hs (&select); |
| 1536 | return; |
| 1537 | } |
| 1538 | } |
| 1539 | |
| 1540 | if (NFA_STATUS_OK != nfa_cho_parse_carrier_config (p_ndef_msg, |
| 1541 | evt_data.request.num_ac_rec, |
| 1542 | &evt_data.request.ac_rec[0])) |
| 1543 | { |
| 1544 | CHO_TRACE_ERROR0 ("Failed to parse carrier configuration"); |
| 1545 | |
| 1546 | evt_data.request.status = NFA_STATUS_FAILED; |
| 1547 | evt_data.request.num_ac_rec = 0; |
| 1548 | evt_data.request.p_ref_ndef = NULL; |
| 1549 | evt_data.request.ref_ndef_len = 0; |
| 1550 | |
| 1551 | nfa_cho_cb.p_cback (NFA_CHO_REQUEST_EVT, &evt_data); |
| 1552 | return; |
| 1553 | } |
| 1554 | |
| 1555 | if (evt_data.request.num_ac_rec) |
| 1556 | { |
| 1557 | /* passing alternative carrier references */ |
| 1558 | evt_data.request.p_ref_ndef = NDEF_MsgGetNextRec (p_ndef_msg); |
| 1559 | *evt_data.request.p_ref_ndef |= NDEF_MB_MASK; |
| 1560 | evt_data.request.ref_ndef_len = (UINT32)(length - (evt_data.request.p_ref_ndef - p_ndef_msg)); |
| 1561 | } |
| 1562 | else |
| 1563 | { |
| 1564 | evt_data.request.p_ref_ndef = NULL; |
| 1565 | evt_data.request.ref_ndef_len = 0; |
| 1566 | } |
| 1567 | |
| 1568 | evt_data.request.status = NFA_STATUS_OK; |
| 1569 | |
| 1570 | nfa_cho_cb.p_cback (NFA_CHO_REQUEST_EVT, &evt_data); |
| 1571 | } |
| 1572 | |
| 1573 | /******************************************************************************* |
| 1574 | ** |
| 1575 | ** Function nfa_cho_get_error |
| 1576 | ** |
| 1577 | ** Description Search Error record and parse it |
| 1578 | ** |
| 1579 | ** |
| 1580 | ** Returns tNFA_STATUS |
| 1581 | ** |
| 1582 | *******************************************************************************/ |
| 1583 | tNFA_STATUS nfa_cho_get_error (UINT8 *p_ndef_msg, UINT8 *p_error_reason, UINT32 *p_error_data) |
| 1584 | { |
| 1585 | UINT8 *p_err_record, *p_err_payload, u8; |
| 1586 | UINT32 err_payload_len; |
| 1587 | |
| 1588 | CHO_TRACE_DEBUG0 ("nfa_cho_get_error ()"); |
| 1589 | |
| 1590 | p_err_record = NDEF_MsgGetFirstRecByType (p_ndef_msg, NDEF_TNF_WKT, err_rec_type, ERR_REC_TYPE_LEN); |
| 1591 | |
| 1592 | if (!p_err_record) |
| 1593 | { |
| 1594 | CHO_TRACE_DEBUG0 ("Found no err record"); |
| 1595 | return NFA_STATUS_FAILED; |
| 1596 | } |
| 1597 | |
| 1598 | p_err_payload = NDEF_RecGetPayload (p_err_record, &err_payload_len); |
| 1599 | |
| 1600 | if (!p_err_payload) |
| 1601 | { |
| 1602 | CHO_TRACE_ERROR0 ("Failed to get err payload"); |
| 1603 | return NFA_STATUS_SYNTAX_ERROR; |
| 1604 | } |
| 1605 | |
| 1606 | BE_STREAM_TO_UINT8 (*p_error_reason, p_err_payload); |
| 1607 | |
| 1608 | if ( (err_payload_len == 2) |
| 1609 | &&( (*p_error_reason == NFA_CHO_ERROR_TEMP_MEM) |
| 1610 | ||(*p_error_reason == NFA_CHO_ERROR_CARRIER) ) ) |
| 1611 | { |
| 1612 | BE_STREAM_TO_UINT8 (u8, p_err_payload); |
| 1613 | *p_error_data = (UINT32)u8; |
| 1614 | } |
| 1615 | else if ( (err_payload_len == 5) |
| 1616 | &&(*p_error_reason == NFA_CHO_ERROR_PERM_MEM) ) |
| 1617 | { |
| 1618 | BE_STREAM_TO_UINT32 (*p_error_data, p_err_payload); |
| 1619 | } |
| 1620 | else |
| 1621 | { |
| 1622 | CHO_TRACE_ERROR2 ("Unknown error reason = %d, err_payload_len = %d", |
| 1623 | *p_error_reason, err_payload_len); |
| 1624 | return NFA_STATUS_SYNTAX_ERROR; |
| 1625 | } |
| 1626 | |
| 1627 | CHO_TRACE_DEBUG2 ("error_reason=0x%x, error_data=0x%x", *p_error_reason, *p_error_data); |
| 1628 | |
| 1629 | return NFA_STATUS_OK; |
| 1630 | } |
| 1631 | |
| 1632 | /******************************************************************************* |
| 1633 | ** |
| 1634 | ** Function nfa_cho_parse_hs_record |
| 1635 | ** |
| 1636 | ** Description Parse Handover Select record |
| 1637 | ** |
| 1638 | ** |
| 1639 | ** Returns tNFA_STATUS |
| 1640 | ** |
| 1641 | *******************************************************************************/ |
| 1642 | tNFA_STATUS nfa_cho_parse_hs_record (UINT8 *p_ndef_msg, |
| 1643 | UINT8 *p_version, |
| 1644 | UINT8 *p_num_ac_rec, |
| 1645 | tNFA_CHO_AC_REC *p_ac_rec, |
| 1646 | UINT8 *p_error_reason, |
| 1647 | UINT32 *p_error_data) |
| 1648 | { |
| 1649 | tNFA_STATUS status; |
| 1650 | UINT8 *p_hs_record, *p_hs_payload; |
| 1651 | UINT32 hs_payload_len; |
| 1652 | |
| 1653 | CHO_TRACE_DEBUG0 ("nfa_cho_parse_hs_record ()"); |
| 1654 | |
| 1655 | /* get Handover Select record */ |
| 1656 | p_hs_record = NDEF_MsgGetFirstRecByType (p_ndef_msg, NDEF_TNF_WKT, hs_rec_type, HS_REC_TYPE_LEN); |
| 1657 | |
| 1658 | if (!p_hs_record) |
| 1659 | { |
| 1660 | CHO_TRACE_ERROR0 ("Failed to find Hs record"); |
| 1661 | return NFA_STATUS_FAILED; |
| 1662 | } |
| 1663 | |
| 1664 | p_hs_payload = NDEF_RecGetPayload (p_hs_record, &hs_payload_len); |
| 1665 | |
| 1666 | if ((!p_hs_payload) || (hs_payload_len < 1)) /* at least version */ |
| 1667 | { |
| 1668 | CHO_TRACE_ERROR0 ("Failed to get Hs payload (version, ac record)"); |
| 1669 | return NFA_STATUS_FAILED; |
| 1670 | } |
| 1671 | |
| 1672 | STREAM_TO_UINT8 ((*p_version), p_hs_payload); |
| 1673 | hs_payload_len--; |
| 1674 | |
| 1675 | /* Check if error record is sent */ |
| 1676 | status = nfa_cho_get_error (p_ndef_msg, p_error_reason, p_error_data); |
| 1677 | |
| 1678 | if (status == NFA_STATUS_SYNTAX_ERROR) |
| 1679 | { |
| 1680 | return NFA_STATUS_FAILED; |
| 1681 | } |
| 1682 | else if (status == NFA_STATUS_OK) |
| 1683 | { |
| 1684 | return NFA_STATUS_OK; |
| 1685 | } |
| 1686 | |
| 1687 | if (hs_payload_len >= 3 ) |
| 1688 | { |
| 1689 | /* NDEF message for Alternative Carrier records */ |
| 1690 | if (NDEF_OK != NDEF_MsgValidate (p_hs_payload, hs_payload_len, FALSE)) |
| 1691 | { |
| 1692 | CHO_TRACE_ERROR0 ("Failed to validate NDEF message for ac records"); |
| 1693 | return NFA_STATUS_FAILED; |
| 1694 | } |
| 1695 | |
| 1696 | /* Alternative Carrier records */ |
| 1697 | if (p_ac_rec) |
| 1698 | { |
| 1699 | if (NFA_STATUS_OK != nfa_cho_parse_ac_records (p_hs_payload, p_num_ac_rec, p_ac_rec)) |
| 1700 | { |
| 1701 | return NFA_STATUS_FAILED; |
| 1702 | } |
| 1703 | |
| 1704 | CHO_TRACE_DEBUG1 ("Found %d ac record", *p_num_ac_rec); |
| 1705 | } |
| 1706 | } |
| 1707 | else |
| 1708 | { |
| 1709 | CHO_TRACE_DEBUG0 ("Empty Handover Select Message"); |
| 1710 | *p_num_ac_rec = 0; |
| 1711 | } |
| 1712 | |
| 1713 | return NFA_STATUS_OK; |
| 1714 | } |
| 1715 | |
| 1716 | /******************************************************************************* |
| 1717 | ** |
| 1718 | ** Function nfa_cho_proc_hs |
| 1719 | ** |
| 1720 | ** Description Parse Handover Select Message |
| 1721 | ** |
| 1722 | ** |
| 1723 | ** Returns FALSE if we need to select one from inactive ACs |
| 1724 | ** |
| 1725 | *******************************************************************************/ |
| 1726 | void nfa_cho_proc_hs (UINT32 length, UINT8 *p_ndef_msg) |
| 1727 | { |
| 1728 | tNFA_CHO_EVT_DATA evt_data; |
| 1729 | UINT8 version, error_reason = 0; |
| 1730 | UINT32 error_data; |
| 1731 | |
| 1732 | CHO_TRACE_DEBUG0 ("nfa_cho_proc_hs ()"); |
| 1733 | |
| 1734 | evt_data.select.status = NFA_STATUS_OK; |
| 1735 | |
| 1736 | /* Parse Handover Select record */ |
| 1737 | if (NFA_STATUS_OK != nfa_cho_parse_hs_record (p_ndef_msg, &version, |
| 1738 | &evt_data.select.num_ac_rec, |
| 1739 | &evt_data.select.ac_rec[0], |
| 1740 | &error_reason, &error_data)) |
| 1741 | { |
| 1742 | CHO_TRACE_ERROR0 ("Failed to parse hs record"); |
| 1743 | |
| 1744 | evt_data.select.status = NFA_STATUS_FAILED; |
| 1745 | } |
| 1746 | |
| 1747 | if ( (evt_data.select.status == NFA_STATUS_OK) |
| 1748 | &&(error_reason != 0) ) |
| 1749 | { |
| 1750 | /* We got error records */ |
| 1751 | evt_data.sel_err.error_reason = error_reason; |
| 1752 | evt_data.sel_err.error_data = error_data; |
| 1753 | |
| 1754 | nfa_cho_cb.p_cback (NFA_CHO_SEL_ERR_EVT, &evt_data); |
| 1755 | return; |
| 1756 | } |
| 1757 | |
| 1758 | if ( (evt_data.select.status == NFA_STATUS_OK) |
| 1759 | &&(version != NFA_CHO_VERSION) ) |
| 1760 | { |
| 1761 | CHO_TRACE_ERROR1 ("Version (0x%02x) not matched", version); |
| 1762 | |
| 1763 | evt_data.select.status = NFA_STATUS_FAILED; |
| 1764 | } |
| 1765 | |
| 1766 | /* parse Alternative Carrier information */ |
| 1767 | |
| 1768 | if ( (evt_data.select.status == NFA_STATUS_OK) |
| 1769 | &&(NFA_STATUS_OK != nfa_cho_parse_carrier_config (p_ndef_msg, |
| 1770 | evt_data.select.num_ac_rec, |
| 1771 | &evt_data.select.ac_rec[0])) ) |
| 1772 | { |
| 1773 | CHO_TRACE_ERROR0 ("Failed to parse carrier configuration"); |
| 1774 | |
| 1775 | evt_data.select.status = NFA_STATUS_FAILED; |
| 1776 | } |
| 1777 | |
| 1778 | if (evt_data.select.status == NFA_STATUS_OK) |
| 1779 | { |
| 1780 | if (evt_data.select.num_ac_rec) |
| 1781 | { |
| 1782 | /* passing alternative carrier references */ |
| 1783 | evt_data.select.p_ref_ndef = NDEF_MsgGetNextRec (p_ndef_msg); |
| 1784 | *evt_data.select.p_ref_ndef |= NDEF_MB_MASK; |
| 1785 | evt_data.select.ref_ndef_len = (UINT32)(length - (evt_data.select.p_ref_ndef - p_ndef_msg)); |
| 1786 | } |
| 1787 | else |
| 1788 | { |
| 1789 | evt_data.select.p_ref_ndef = NULL; |
| 1790 | evt_data.select.ref_ndef_len = 0; |
| 1791 | } |
| 1792 | } |
| 1793 | else |
| 1794 | { |
| 1795 | evt_data.select.num_ac_rec = 0; |
| 1796 | evt_data.select.p_ref_ndef = NULL; |
| 1797 | evt_data.select.ref_ndef_len = 0; |
| 1798 | } |
| 1799 | |
| 1800 | nfa_cho_cb.p_cback (NFA_CHO_SELECT_EVT, &evt_data); |
| 1801 | } |
| 1802 | |
| 1803 | /******************************************************************************* |
| 1804 | ** |
| 1805 | ** Function nfa_cho_proc_simplified_format |
| 1806 | ** |
| 1807 | ** Description Parse simplified BT OOB/Wifi Message |
| 1808 | ** |
| 1809 | ** |
| 1810 | ** Returns void |
| 1811 | ** |
| 1812 | *******************************************************************************/ |
| 1813 | void nfa_cho_proc_simplified_format (UINT32 length, UINT8 *p_ndef_msg) |
| 1814 | { |
| 1815 | tNFA_CHO_EVT_DATA evt_data; |
| 1816 | |
| 1817 | CHO_TRACE_DEBUG0 ("nfa_cho_proc_simplified_format ()"); |
| 1818 | |
| 1819 | evt_data.select.status = NFA_STATUS_OK; |
| 1820 | |
| 1821 | evt_data.select.num_ac_rec = 1; |
| 1822 | |
| 1823 | evt_data.select.ac_rec[0].cps = NFA_CHO_CPS_UNKNOWN; |
| 1824 | evt_data.select.ac_rec[0].carrier_data_ref.ref_len = 0; |
| 1825 | evt_data.select.ac_rec[0].aux_data_ref_count = 0; |
| 1826 | |
| 1827 | evt_data.select.p_ref_ndef = p_ndef_msg; |
| 1828 | evt_data.select.ref_ndef_len = length; |
| 1829 | |
| 1830 | nfa_cho_cb.p_cback (NFA_CHO_SELECT_EVT, &evt_data); |
| 1831 | } |
| 1832 | |
| 1833 | /******************************************************************************* |
| 1834 | ** |
| 1835 | ** Function nfa_cho_get_msg_type |
| 1836 | ** |
| 1837 | ** Description Get handover message type to check collision |
| 1838 | ** |
| 1839 | ** |
| 1840 | ** Returns NFA_CHO_MSG_HR if it has Handover Request record |
| 1841 | ** NFA_CHO_MSG_HS if it has Handover Select record |
| 1842 | ** NFA_CHO_MSG_BT_OOB if it has simplified BT OOB record |
| 1843 | ** NFA_CHO_MSG_WIFI if it has simplified WiFi record |
| 1844 | ** NFA_CHO_MSG_UNKNOWN, otherwise |
| 1845 | ** |
| 1846 | *******************************************************************************/ |
| 1847 | tNFA_CHO_MSG_TYPE nfa_cho_get_msg_type (UINT32 length, UINT8 *p_ndef_msg) |
| 1848 | { |
| 1849 | UINT8 *p_record; |
| 1850 | |
| 1851 | CHO_TRACE_DEBUG1 ("nfa_cho_get_msg_type () length=%d", length); |
| 1852 | |
| 1853 | p_record = NDEF_MsgGetFirstRecByType (p_ndef_msg, NDEF_TNF_WKT, hr_rec_type, HR_REC_TYPE_LEN); |
| 1854 | |
| 1855 | if (p_record) |
| 1856 | { |
| 1857 | CHO_TRACE_DEBUG0 ("Found Hr record"); |
| 1858 | return NFA_CHO_MSG_HR; |
| 1859 | } |
| 1860 | |
| 1861 | p_record = NDEF_MsgGetFirstRecByType (p_ndef_msg, NDEF_TNF_WKT, hs_rec_type, HS_REC_TYPE_LEN); |
| 1862 | |
| 1863 | if (p_record) |
| 1864 | { |
| 1865 | CHO_TRACE_DEBUG0 ("Found Hs record"); |
| 1866 | return NFA_CHO_MSG_HS; |
| 1867 | } |
| 1868 | |
| 1869 | p_record = NDEF_MsgGetFirstRecByType (p_ndef_msg, NDEF_TNF_MEDIA, |
| 1870 | p_bt_oob_rec_type, BT_OOB_REC_TYPE_LEN); |
| 1871 | |
| 1872 | if (p_record) |
| 1873 | { |
| 1874 | CHO_TRACE_DEBUG0 ("Found simplified BT OOB record"); |
| 1875 | return NFA_CHO_MSG_BT_OOB; |
| 1876 | } |
| 1877 | |
| 1878 | p_record = NDEF_MsgGetFirstRecByType (p_ndef_msg, NDEF_TNF_MEDIA, |
| 1879 | p_wifi_rec_type, (UINT8) strlen ((char *) p_wifi_rec_type)); |
| 1880 | |
| 1881 | if (p_record) |
| 1882 | { |
| 1883 | CHO_TRACE_DEBUG0 ("Found simplified WiFi record"); |
| 1884 | return NFA_CHO_MSG_WIFI; |
| 1885 | } |
| 1886 | |
| 1887 | CHO_TRACE_ERROR0 ("Failed to find Hr/Hs record"); |
| 1888 | |
| 1889 | return NFA_CHO_MSG_UNKNOWN; |
| 1890 | } |
| 1891 | |
| 1892 | /******************************************************************************* |
| 1893 | ** |
| 1894 | ** Function nfa_cho_get_local_device_role |
| 1895 | ** |
| 1896 | ** Description Resolve collision and get role of local device |
| 1897 | ** |
| 1898 | ** |
| 1899 | ** Returns tNFA_CHO_ROLE_TYPE |
| 1900 | ** |
| 1901 | *******************************************************************************/ |
| 1902 | tNFA_CHO_ROLE_TYPE nfa_cho_get_local_device_role (UINT32 length, UINT8 *p_ndef_msg) |
| 1903 | { |
| 1904 | UINT16 rx_random_number; |
| 1905 | UINT8 version; |
| 1906 | |
| 1907 | CHO_TRACE_DEBUG1 ("nfa_cho_get_local_device_role () length=%d", length); |
| 1908 | |
| 1909 | /* Get random number in Handover Request record */ |
| 1910 | if (NDEF_OK != nfa_cho_parse_hr_record (p_ndef_msg, &version, &rx_random_number, NULL, NULL)) |
| 1911 | { |
| 1912 | CHO_TRACE_ERROR0 ("Failed to parse hr record"); |
| 1913 | return NFA_CHO_ROLE_UNDECIDED; |
| 1914 | } |
| 1915 | |
| 1916 | CHO_TRACE_DEBUG2 ("tx_random_number=0x%x, rx_random_number=0x%x", |
| 1917 | nfa_cho_cb.tx_random_number, rx_random_number); |
| 1918 | |
| 1919 | if (nfa_cho_cb.tx_random_number == rx_random_number) |
| 1920 | { |
| 1921 | return NFA_CHO_ROLE_UNDECIDED; |
| 1922 | } |
| 1923 | /* if the least significant bits are same */ |
| 1924 | else if (((nfa_cho_cb.tx_random_number ^ rx_random_number) & 0x0001) == 0) |
| 1925 | { |
| 1926 | if (nfa_cho_cb.tx_random_number > rx_random_number) |
| 1927 | return NFA_CHO_ROLE_SELECTOR; |
| 1928 | else |
| 1929 | return NFA_CHO_ROLE_REQUESTER; |
| 1930 | } |
| 1931 | else |
| 1932 | { |
| 1933 | if (nfa_cho_cb.tx_random_number > rx_random_number) |
| 1934 | return NFA_CHO_ROLE_REQUESTER; |
| 1935 | else |
| 1936 | return NFA_CHO_ROLE_SELECTOR; |
| 1937 | } |
| 1938 | } |
| 1939 | |
| 1940 | /******************************************************************************* |
| 1941 | ** |
| 1942 | ** Function nfa_cho_update_random_number |
| 1943 | ** |
| 1944 | ** Description Replace random number |
| 1945 | ** |
| 1946 | ** |
| 1947 | ** Returns tNFA_STATUS |
| 1948 | ** |
| 1949 | *******************************************************************************/ |
| 1950 | tNFA_STATUS nfa_cho_update_random_number (UINT8 *p_ndef_msg) |
| 1951 | { |
| 1952 | UINT8 *p_hr_record, *p_hr_payload; |
| 1953 | UINT8 *p_cr_record, *p_cr_payload; |
| 1954 | UINT32 hr_payload_len, cr_payload_len; |
| 1955 | UINT32 temp32; |
| 1956 | |
| 1957 | CHO_TRACE_DEBUG0 ("nfa_cho_update_random_number ()"); |
| 1958 | |
| 1959 | /* get Handover Request record */ |
| 1960 | p_hr_record = NDEF_MsgGetFirstRecByType (p_ndef_msg, NDEF_TNF_WKT, hr_rec_type, HR_REC_TYPE_LEN); |
| 1961 | |
| 1962 | if (!p_hr_record) |
| 1963 | { |
| 1964 | CHO_TRACE_ERROR0 ("Failed to find Hr record"); |
| 1965 | return NFA_STATUS_FAILED; |
| 1966 | } |
| 1967 | |
| 1968 | p_hr_payload = NDEF_RecGetPayload (p_hr_record, &hr_payload_len); |
| 1969 | |
| 1970 | /* Skip Version */ |
| 1971 | p_hr_payload++; |
| 1972 | hr_payload_len--; |
| 1973 | |
| 1974 | /* NDEF message for Collision Resolution record and Alternative Carrier records */ |
| 1975 | |
| 1976 | /* find Collision Resolution record */ |
| 1977 | p_cr_record = NDEF_MsgGetFirstRecByType (p_hr_payload, NDEF_TNF_WKT, cr_rec_type, CR_REC_TYPE_LEN); |
| 1978 | |
| 1979 | if (!p_cr_record) |
| 1980 | { |
| 1981 | CHO_TRACE_ERROR0 ("Failed to find cr record"); |
| 1982 | return NFA_STATUS_FAILED; |
| 1983 | } |
| 1984 | |
| 1985 | /* get start of payload in Collision Resolution record */ |
| 1986 | p_cr_payload = NDEF_RecGetPayload (p_cr_record, &cr_payload_len); |
| 1987 | |
| 1988 | /* Get random number from timer */ |
| 1989 | temp32 = GKI_get_tick_count (); |
| 1990 | nfa_cho_cb.tx_random_number = (UINT16) ((temp32 >> 16) ^ (temp32)); |
| 1991 | |
| 1992 | #if (defined (NFA_CHO_TEST_INCLUDED) && (NFA_CHO_TEST_INCLUDED == TRUE)) |
| 1993 | if (nfa_cho_cb.test_enabled & NFA_CHO_TEST_RANDOM) |
| 1994 | { |
| 1995 | nfa_cho_cb.tx_random_number = nfa_cho_cb.test_random_number; |
| 1996 | } |
| 1997 | #endif |
| 1998 | |
| 1999 | CHO_TRACE_DEBUG1 ("tx_random_number = 0x%04x", nfa_cho_cb.tx_random_number); |
| 2000 | |
| 2001 | /* update random number in payload */ |
| 2002 | UINT16_TO_BE_STREAM (p_cr_payload, nfa_cho_cb.tx_random_number); |
| 2003 | |
| 2004 | return NFA_STATUS_OK; |
| 2005 | } |