1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define __BTSTACK_FILE__ "pbap_client.c" 39 40 // ***************************************************************************** 41 // 42 #if 0 43 0x0000 = uint32(65542), 44 // BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS_PSE 45 0x0001 = { uuid16(11 2f) }, 46 // BLUETOOTH_PROTOCOL_L2CAP, BLUETOOTH_PROTOCOL_RFCOMM, BLUETOOTH_PROTOCOL_OBEX 47 0x0004 = { { uuid16(01 00) }, { uuid16(00 03), uint8(19) }, { uuid16(00 08) } } 48 0x0005 = { uuid16(10 02) }, 49 // BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS, v1.01 = 0x101 50 0x0009 = { { uuid16(11 30), uint16(257) } }, 51 0x0100 = string(OBEX Phonebook Access Server 52 // BLUETOOTH_ATTRIBUTE_SUPPORTED_FEATURES -- should be 0x317 BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES? 53 0x0311 = uint8(3), 54 // BLUETOOTH_ATTRIBUTE_SUPPORTED_REPOSITORIES 55 0x0314 = uint8(1), 56 #endif 57 // 58 // ***************************************************************************** 59 60 #include "btstack_config.h" 61 62 #include <stdint.h> 63 #include <stdio.h> 64 #include <stdlib.h> 65 #include <string.h> 66 67 #include "hci_cmd.h" 68 #include "btstack_run_loop.h" 69 #include "btstack_debug.h" 70 #include "hci.h" 71 #include "btstack_memory.h" 72 #include "hci_dump.h" 73 #include "l2cap.h" 74 #include "bluetooth_sdp.h" 75 #include "classic/sdp_client_rfcomm.h" 76 #include "btstack_event.h" 77 78 #include "classic/obex.h" 79 #include "classic/obex_iterator.h" 80 #include "classic/goep_client.h" 81 #include "classic/pbap_client.h" 82 83 // 796135f0-f0c5-11d8-0966- 0800200c9a66 84 uint8_t pbap_uuid[] = { 0x79, 0x61, 0x35, 0xf0, 0xf0, 0xc5, 0x11, 0xd8, 0x09, 0x66, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66}; 85 const char * pbap_type = "x-bt/phonebook"; 86 const char * pbap_name = "pb.vcf"; 87 88 typedef enum { 89 PBAP_INIT = 0, 90 PBAP_W4_GOEP_CONNECTION, 91 PBAP_W2_SEND_CONNECT_REQUEST, 92 PBAP_W4_CONNECT_RESPONSE, 93 PBAP_CONNECT_RESPONSE_RECEIVED, 94 PBAP_CONNECTED, 95 // 96 PBAP_W2_PULL_PHONE_BOOK, 97 PBAP_W4_PHONE_BOOK, 98 PBAP_W2_SET_PATH_ROOT, 99 PBAP_W4_SET_PATH_ROOT_COMPLETE, 100 PBAP_W2_SET_PATH_ELEMENT, 101 PBAP_W4_SET_PATH_ELEMENT_COMPLETE, 102 } pbap_state_t; 103 104 typedef struct pbap_client { 105 pbap_state_t state; 106 uint16_t cid; 107 bd_addr_t bd_addr; 108 hci_con_handle_t con_handle; 109 uint8_t incoming; 110 uint16_t goep_cid; 111 btstack_packet_handler_t client_handler; 112 const char * current_folder; 113 uint16_t set_path_offset; 114 } pbap_client_t; 115 116 static pbap_client_t _pbap_client; 117 static pbap_client_t * pbap_client = &_pbap_client; 118 119 static inline void pbap_client_emit_connected_event(pbap_client_t * context, uint8_t status){ 120 uint8_t event[15]; 121 int pos = 0; 122 event[pos++] = HCI_EVENT_PBAP_META; 123 pos++; // skip len 124 event[pos++] = PBAP_SUBEVENT_CONNECTION_OPENED; 125 little_endian_store_16(event,pos,context->cid); 126 pos+=2; 127 event[pos++] = status; 128 memcpy(&event[pos], context->bd_addr, 6); 129 pos += 6; 130 little_endian_store_16(event,pos,context->con_handle); 131 pos += 2; 132 event[pos++] = context->incoming; 133 event[1] = pos - 2; 134 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 135 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 136 } 137 138 static inline void pbap_client_emit_connection_closed_event(pbap_client_t * context){ 139 uint8_t event[5]; 140 int pos = 0; 141 event[pos++] = HCI_EVENT_PBAP_META; 142 pos++; // skip len 143 event[pos++] = PBAP_SUBEVENT_CONNECTION_CLOSED; 144 little_endian_store_16(event,pos,context->cid); 145 pos+=2; 146 event[1] = pos - 2; 147 if (pos != sizeof(event)) log_error("pbap_client_emit_connection_closed_event size %u", pos); 148 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 149 } 150 151 static inline void pbap_client_emit_operation_complete_event(pbap_client_t * context, uint8_t status){ 152 uint8_t event[6]; 153 int pos = 0; 154 event[pos++] = HCI_EVENT_PBAP_META; 155 pos++; // skip len 156 event[pos++] = PBAP_SUBEVENT_OPERATION_COMPLETED; 157 little_endian_store_16(event,pos,context->cid); 158 pos+=2; 159 event[pos++]= status; 160 event[1] = pos - 2; 161 if (pos != sizeof(event)) log_error("pbap_client_emit_can_send_now_event size %u", pos); 162 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 163 } 164 165 static void pbap_handle_can_send_now(void){ 166 uint8_t path_element[20]; 167 uint16_t path_element_start; 168 uint16_t path_element_len; 169 170 switch (pbap_client->state){ 171 case PBAP_W2_SEND_CONNECT_REQUEST: 172 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 173 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 174 // state 175 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 176 // send packet 177 goep_client_execute(pbap_client->goep_cid); 178 return; 179 case PBAP_W2_PULL_PHONE_BOOK: 180 goep_client_create_get_request(pbap_client->goep_cid); 181 goep_client_add_header_type(pbap_client->goep_cid, pbap_type); 182 goep_client_add_header_name(pbap_client->goep_cid, pbap_name); 183 // state 184 pbap_client->state = PBAP_W4_PHONE_BOOK; 185 // send packet 186 goep_client_execute(pbap_client->goep_cid); 187 break; 188 case PBAP_W2_SET_PATH_ROOT: 189 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 190 // On Android 4.2 Cyanogenmod, using "" as path fails 191 // goep_client_add_header_name(pbap_client->goep_cid, ""); // empty == / 192 // state 193 pbap_client->state = PBAP_W4_SET_PATH_ROOT_COMPLETE; 194 // send packet 195 goep_client_execute(pbap_client->goep_cid); 196 break; 197 case PBAP_W2_SET_PATH_ELEMENT: 198 // find '/' or '\0' 199 path_element_start = pbap_client->set_path_offset; 200 while (pbap_client->current_folder[pbap_client->set_path_offset] != '\0' && 201 pbap_client->current_folder[pbap_client->set_path_offset] != '/'){ 202 pbap_client->set_path_offset++; 203 } 204 // skip / 205 if (pbap_client->current_folder[pbap_client->set_path_offset] == '/'){ 206 pbap_client->set_path_offset++; 207 } 208 path_element_len = pbap_client->set_path_offset-path_element_start; 209 memcpy(path_element, &pbap_client->current_folder[path_element_start], path_element_len); 210 path_element[path_element_len] = 0; 211 212 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 213 goep_client_add_header_name(pbap_client->goep_cid, (const char *) path_element); // next element 214 // state 215 pbap_client->state = PBAP_W4_SET_PATH_ELEMENT_COMPLETE; 216 // send packet 217 goep_client_execute(pbap_client->goep_cid); 218 break; 219 default: 220 break; 221 } 222 } 223 224 static void pbap_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 225 226 UNUSED(channel); // ok: there is no channel 227 UNUSED(size); // ok: handling own geop events 228 229 obex_iterator_t it; 230 uint8_t status; 231 switch (packet_type){ 232 case HCI_EVENT_PACKET: 233 switch (hci_event_packet_get_type(packet)) { 234 case HCI_EVENT_GOEP_META: 235 switch (hci_event_goep_meta_get_subevent_code(packet)){ 236 case GOEP_SUBEVENT_CONNECTION_OPENED: 237 status = goep_subevent_connection_opened_get_status(packet); 238 pbap_client->con_handle = goep_subevent_connection_opened_get_con_handle(packet); 239 pbap_client->incoming = goep_subevent_connection_opened_get_incoming(packet); 240 goep_subevent_connection_opened_get_bd_addr(packet, pbap_client->bd_addr); 241 if (status){ 242 log_info("pbap: connection failed %u", status); 243 pbap_client->state = PBAP_INIT; 244 pbap_client_emit_connected_event(pbap_client, status); 245 } else { 246 log_info("pbap: connection established"); 247 pbap_client->goep_cid = goep_subevent_connection_opened_get_goep_cid(packet); 248 pbap_client->state = PBAP_W2_SEND_CONNECT_REQUEST; 249 goep_client_request_can_send_now(pbap_client->goep_cid); 250 } 251 break; 252 case GOEP_SUBEVENT_CONNECTION_CLOSED: 253 if (pbap_client->state != PBAP_CONNECTED){ 254 pbap_client_emit_operation_complete_event(pbap_client, OBEX_DISCONNECTED); 255 } 256 pbap_client->state = PBAP_INIT; 257 pbap_client_emit_connection_closed_event(pbap_client); 258 break; 259 case GOEP_SUBEVENT_CAN_SEND_NOW: 260 pbap_handle_can_send_now(); 261 break; 262 } 263 break; 264 default: 265 break; 266 } 267 break; 268 case GOEP_DATA_PACKET: 269 // TODO: handle chunked data 270 #if 0 271 obex_dump_packet(goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); 272 #endif 273 switch (pbap_client->state){ 274 case PBAP_W4_CONNECT_RESPONSE: 275 for (obex_iterator_init_with_response_packet(&it, goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); obex_iterator_has_more(&it) ; obex_iterator_next(&it)){ 276 uint8_t hi = obex_iterator_get_hi(&it); 277 if (hi == OBEX_HEADER_CONNECTION_ID){ 278 goep_client_set_connection_id(pbap_client->goep_cid, obex_iterator_get_data_32(&it)); 279 } 280 } 281 if (packet[0] == OBEX_RESP_SUCCESS){ 282 pbap_client->state = PBAP_CONNECTED; 283 pbap_client_emit_connected_event(pbap_client, 0); 284 } else { 285 log_info("pbap: obex connect failed, result 0x%02x", packet[0]); 286 pbap_client->state = PBAP_INIT; 287 pbap_client_emit_connected_event(pbap_client, OBEX_CONNECT_FAILED); 288 } 289 break; 290 case PBAP_W4_SET_PATH_ROOT_COMPLETE: 291 case PBAP_W4_SET_PATH_ELEMENT_COMPLETE: 292 if (packet[0] == OBEX_RESP_SUCCESS){ 293 if (pbap_client->current_folder){ 294 pbap_client->state = PBAP_W2_SET_PATH_ELEMENT; 295 goep_client_request_can_send_now(pbap_client->goep_cid); 296 } else { 297 pbap_client_emit_operation_complete_event(pbap_client, 0); 298 } 299 } else if (packet[0] == OBEX_RESP_NOT_FOUND){ 300 pbap_client->state = PBAP_CONNECTED; 301 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_FOUND); 302 } else { 303 pbap_client->state = PBAP_CONNECTED; 304 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 305 } 306 break; 307 case PBAP_W4_PHONE_BOOK: 308 for (obex_iterator_init_with_response_packet(&it, goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); obex_iterator_has_more(&it) ; obex_iterator_next(&it)){ 309 uint8_t hi = obex_iterator_get_hi(&it); 310 if (hi == OBEX_HEADER_BODY || hi == OBEX_HEADER_END_OF_BODY){ 311 uint16_t data_len = obex_iterator_get_data_len(&it); 312 const uint8_t * data = obex_iterator_get_data(&it); 313 pbap_client->client_handler(PBAP_DATA_PACKET, pbap_client->cid, (uint8_t *) data, data_len); 314 } 315 } 316 if (packet[0] == OBEX_RESP_CONTINUE){ 317 pbap_client->state = PBAP_W2_PULL_PHONE_BOOK; 318 goep_client_request_can_send_now(pbap_client->goep_cid); 319 } else if (packet[0] == OBEX_RESP_SUCCESS){ 320 pbap_client->state = PBAP_CONNECTED; 321 pbap_client_emit_operation_complete_event(pbap_client, 0); 322 } else { 323 pbap_client->state = PBAP_CONNECTED; 324 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 325 } 326 break; 327 default: 328 break; 329 } 330 break; 331 default: 332 break; 333 } 334 } 335 336 void pbap_client_init(void){ 337 memset(pbap_client, 0, sizeof(pbap_client_t)); 338 pbap_client->state = PBAP_INIT; 339 pbap_client->cid = 1; 340 } 341 342 uint8_t pbap_connect(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t * out_cid){ 343 if (pbap_client->state != PBAP_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 344 pbap_client->state = PBAP_W4_GOEP_CONNECTION; 345 pbap_client->client_handler = handler; 346 uint8_t err = goep_client_create_connection(&pbap_packet_handler, addr, BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS_PSE, &pbap_client->goep_cid); 347 *out_cid = pbap_client->cid; 348 if (err) return err; 349 return 0; 350 } 351 352 uint8_t pbap_disconnect(uint16_t pbap_cid){ 353 UNUSED(pbap_cid); 354 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 355 goep_client_disconnect(pbap_client->goep_cid); 356 return 0; 357 } 358 359 uint8_t pbap_pull_phonebook(uint16_t pbap_cid){ 360 UNUSED(pbap_cid); 361 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 362 pbap_client->state = PBAP_W2_PULL_PHONE_BOOK; 363 goep_client_request_can_send_now(pbap_client->goep_cid); 364 return 0; 365 } 366 367 uint8_t pbap_set_phonebook(uint16_t pbap_cid, const char * path){ 368 UNUSED(pbap_cid); 369 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 370 pbap_client->state = PBAP_W2_SET_PATH_ROOT; 371 pbap_client->current_folder = path; 372 pbap_client->set_path_offset = 0; 373 goep_client_request_can_send_now(pbap_client->goep_cid); 374 return 0; 375 } 376