1 /****************************************************************************** 2 * 3 * Copyright 1999-2012 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 file contains internally used SDP definitions 22 * 23 ******************************************************************************/ 24 25 #ifndef SDP_INT_H 26 #define SDP_INT_H 27 28 #include "bluetooth/uuid.h" 29 #include "bt_target.h" 30 #include "l2c_api.h" 31 #include "osi/include/alarm.h" 32 #include "sdp_api.h" 33 34 /* Continuation length - we use a 2-byte offset */ 35 #define SDP_CONTINUATION_LEN 2 36 #define SDP_MAX_CONTINUATION_LEN 16 /* As per the spec */ 37 38 /* Timeout definitions. */ 39 #define SDP_INACT_TIMEOUT_MS (30 * 1000) /* Inactivity timeout (in ms) */ 40 41 /* Define the Out-Flow default values. */ 42 #define SDP_OFLOW_QOS_FLAG 0 43 #define SDP_OFLOW_SERV_TYPE 0 44 #define SDP_OFLOW_TOKEN_RATE 0 45 #define SDP_OFLOW_TOKEN_BUCKET_SIZE 0 46 #define SDP_OFLOW_PEAK_BANDWIDTH 0 47 #define SDP_OFLOW_LATENCY 0 48 #define SDP_OFLOW_DELAY_VARIATION 0 49 50 /* Define the In-Flow default values. */ 51 #define SDP_IFLOW_QOS_FLAG 0 52 #define SDP_IFLOW_SERV_TYPE 0 53 #define SDP_IFLOW_TOKEN_RATE 0 54 #define SDP_IFLOW_TOKEN_BUCKET_SIZE 0 55 #define SDP_IFLOW_PEAK_BANDWIDTH 0 56 #define SDP_IFLOW_LATENCY 0 57 #define SDP_IFLOW_DELAY_VARIATION 0 58 59 #define SDP_LINK_TO 0 60 61 /* Define the type of device notification. */ 62 /* (Inquiry Scan and Page Scan) */ 63 #define SDP_DEVICE_NOTI_LEN \ 64 (sizeof(BT_HDR) + HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PARAM1) 65 66 #define SDP_DEVICE_NOTI_FLAG 0x03 67 68 /* Define the Protocol Data Unit (PDU) types. 69 */ 70 #define SDP_PDU_ERROR_RESPONSE 0x01 71 #define SDP_PDU_SERVICE_SEARCH_REQ 0x02 72 #define SDP_PDU_SERVICE_SEARCH_RSP 0x03 73 #define SDP_PDU_SERVICE_ATTR_REQ 0x04 74 #define SDP_PDU_SERVICE_ATTR_RSP 0x05 75 #define SDP_PDU_SERVICE_SEARCH_ATTR_REQ 0x06 76 #define SDP_PDU_SERVICE_SEARCH_ATTR_RSP 0x07 77 78 /* Max UUIDs and attributes we support per sequence */ 79 #define MAX_UUIDS_PER_SEQ 16 80 #define MAX_ATTR_PER_SEQ 16 81 82 /* Max length we support for any attribute */ 83 #ifdef SDP_MAX_ATTR_LEN 84 #define MAX_ATTR_LEN SDP_MAX_ATTR_LEN 85 #else 86 #define MAX_ATTR_LEN 256 87 #endif 88 89 /* Internal UUID sequence representation */ 90 typedef struct { 91 uint16_t len; 92 uint8_t value[bluetooth::Uuid::kNumBytes128]; 93 } tUID_ENT; 94 95 typedef struct { 96 uint16_t num_uids; 97 tUID_ENT uuid_entry[MAX_UUIDS_PER_SEQ]; 98 } tSDP_UUID_SEQ; 99 100 /* Internal attribute sequence definitions */ 101 typedef struct { 102 uint16_t start; 103 uint16_t end; 104 } tATT_ENT; 105 106 typedef struct { 107 uint16_t num_attr; 108 tATT_ENT attr_entry[MAX_ATTR_PER_SEQ]; 109 } tSDP_ATTR_SEQ; 110 111 /* Define the attribute element of the SDP database record */ 112 typedef struct { 113 uint32_t len; /* Number of bytes in the entry */ 114 uint8_t* value_ptr; /* Points to attr_pad */ 115 uint16_t id; 116 uint8_t type; 117 } tSDP_ATTRIBUTE; 118 119 /* An SDP record consists of a handle, and 1 or more attributes */ 120 typedef struct { 121 uint32_t record_handle; 122 uint32_t free_pad_ptr; 123 uint16_t num_attributes; 124 tSDP_ATTRIBUTE attribute[SDP_MAX_REC_ATTR]; 125 uint8_t attr_pad[SDP_MAX_PAD_LEN]; 126 } tSDP_RECORD; 127 128 /* Define the SDP database */ 129 typedef struct { 130 uint32_t 131 di_primary_handle; /* Device ID Primary record or NULL if nonexistent */ 132 uint16_t num_records; 133 tSDP_RECORD record[SDP_MAX_RECORDS]; 134 } tSDP_DB; 135 136 enum { 137 SDP_IS_SEARCH, 138 SDP_IS_ATTR_SEARCH, 139 }; 140 141 #if (SDP_SERVER_ENABLED == TRUE) 142 /* Continuation information for the SDP server response */ 143 typedef struct { 144 uint16_t next_attr_index; /* attr index for next continuation response */ 145 uint16_t next_attr_start_id; /* attr id to start with for the attr index in 146 next cont. response */ 147 tSDP_RECORD* prev_sdp_rec; /* last sdp record that was completely sent in the 148 response */ 149 bool last_attr_seq_desc_sent; /* whether attr seq length has been sent 150 previously */ 151 uint16_t attr_offset; /* offset within the attr to keep trak of partial 152 attributes in the responses */ 153 } tSDP_CONT_INFO; 154 #endif /* SDP_SERVER_ENABLED == TRUE */ 155 156 /* Define the SDP Connection Control Block */ 157 typedef struct { 158 #define SDP_STATE_IDLE 0 159 #define SDP_STATE_CONN_SETUP 1 160 #define SDP_STATE_CFG_SETUP 2 161 #define SDP_STATE_CONNECTED 3 162 uint8_t con_state; 163 164 #define SDP_FLAGS_IS_ORIG 0x01 165 #define SDP_FLAGS_HIS_CFG_DONE 0x02 166 #define SDP_FLAGS_MY_CFG_DONE 0x04 167 uint8_t con_flags; 168 169 RawAddress device_address; 170 alarm_t* sdp_conn_timer; 171 uint16_t rem_mtu_size; 172 uint16_t connection_id; 173 uint16_t list_len; /* length of the response in the GKI buffer */ 174 uint8_t* rsp_list; /* pointer to GKI buffer holding response */ 175 176 tSDP_DISCOVERY_DB* p_db; /* Database to save info into */ 177 tSDP_DISC_CMPL_CB* p_cb; /* Callback for discovery done */ 178 tSDP_DISC_CMPL_CB2* 179 p_cb2; /* Callback for discovery done piggy back with the user data */ 180 void* user_data; /* piggy back user data */ 181 uint32_t 182 handles[SDP_MAX_DISC_SERVER_RECS]; /* Discovered server record handles */ 183 uint16_t num_handles; /* Number of server handles */ 184 uint16_t cur_handle; /* Current handle being processed */ 185 uint16_t transaction_id; 186 uint16_t disconnect_reason; /* Disconnect reason */ 187 #if (SDP_BROWSE_PLUS == TRUE) 188 uint16_t cur_uuid_idx; 189 #endif 190 191 #define SDP_DISC_WAIT_CONN 0 192 #define SDP_DISC_WAIT_HANDLES 1 193 #define SDP_DISC_WAIT_ATTR 2 194 #define SDP_DISC_WAIT_SEARCH_ATTR 3 195 #define SDP_DISC_WAIT_CANCEL 5 196 197 uint8_t disc_state; 198 uint8_t is_attr_search; 199 200 #if (SDP_SERVER_ENABLED == TRUE) 201 uint16_t cont_offset; /* Continuation state data in the server response */ 202 tSDP_CONT_INFO cont_info; /* structure to hold continuation information for 203 the server response */ 204 #endif /* SDP_SERVER_ENABLED == TRUE */ 205 206 } tCONN_CB; 207 208 /* The main SDP control block */ 209 typedef struct { 210 tL2CAP_CFG_INFO l2cap_my_cfg; /* My L2CAP config */ 211 tCONN_CB ccb[SDP_MAX_CONNECTIONS]; 212 #if (SDP_SERVER_ENABLED == TRUE) 213 tSDP_DB server_db; 214 #endif 215 tL2CAP_APPL_INFO reg_info; /* L2CAP Registration info */ 216 uint16_t max_attr_list_size; /* Max attribute list size to use */ 217 uint16_t max_recs_per_search; /* Max records we want per seaarch */ 218 uint8_t trace_level; 219 } tSDP_CB; 220 221 /* Global SDP data */ 222 extern tSDP_CB sdp_cb; 223 224 /* Functions provided by sdp_main.cc */ 225 extern void sdp_init(void); 226 extern void sdp_free(void); 227 extern void sdp_disconnect(tCONN_CB* p_ccb, uint16_t reason); 228 229 #if (SDP_DEBUG == TRUE) 230 extern uint16_t sdp_set_max_attr_list_size(uint16_t max_size); 231 #endif 232 233 /* Functions provided by sdp_conn.cc 234 */ 235 extern void sdp_conn_rcv_l2e_conn_ind(BT_HDR* p_msg); 236 extern void sdp_conn_rcv_l2e_conn_cfm(BT_HDR* p_msg); 237 extern void sdp_conn_rcv_l2e_disc(BT_HDR* p_msg); 238 extern void sdp_conn_rcv_l2e_config_ind(BT_HDR* p_msg); 239 extern void sdp_conn_rcv_l2e_config_cfm(BT_HDR* p_msg); 240 extern void sdp_conn_rcv_l2e_conn_failed(BT_HDR* p_msg); 241 extern void sdp_conn_rcv_l2e_connected(BT_HDR* p_msg); 242 extern void sdp_conn_rcv_l2e_conn_failed(BT_HDR* p_msg); 243 extern void sdp_conn_rcv_l2e_data(BT_HDR* p_msg); 244 extern void sdp_conn_timer_timeout(void* data); 245 246 extern tCONN_CB* sdp_conn_originate(const RawAddress& p_bd_addr); 247 248 /* Functions provided by sdp_utils.cc 249 */ 250 extern void sdpu_log_attribute_metrics(const RawAddress& bda, 251 tSDP_DISCOVERY_DB* p_db); 252 extern tCONN_CB* sdpu_find_ccb_by_cid(uint16_t cid); 253 extern tCONN_CB* sdpu_find_ccb_by_db(tSDP_DISCOVERY_DB* p_db); 254 extern tCONN_CB* sdpu_allocate_ccb(void); 255 extern void sdpu_release_ccb(tCONN_CB* p_ccb); 256 257 extern uint8_t* sdpu_build_attrib_seq(uint8_t* p_out, uint16_t* p_attr, 258 uint16_t num_attrs); 259 extern uint8_t* sdpu_build_attrib_entry(uint8_t* p_out, tSDP_ATTRIBUTE* p_attr); 260 extern void sdpu_build_n_send_error(tCONN_CB* p_ccb, uint16_t trans_num, 261 uint16_t error_code, char* p_error_text); 262 263 extern uint8_t* sdpu_extract_attr_seq(uint8_t* p, uint16_t param_len, 264 tSDP_ATTR_SEQ* p_seq); 265 extern uint8_t* sdpu_extract_uid_seq(uint8_t* p, uint16_t param_len, 266 tSDP_UUID_SEQ* p_seq); 267 268 extern uint8_t* sdpu_get_len_from_type(uint8_t* p, uint8_t* p_end, uint8_t type, 269 uint32_t* p_len); 270 extern bool sdpu_is_base_uuid(uint8_t* p_uuid); 271 extern bool sdpu_compare_uuid_arrays(uint8_t* p_uuid1, uint32_t len1, 272 uint8_t* p_uuid2, uint16_t len2); 273 extern bool sdpu_compare_uuid_with_attr(const bluetooth::Uuid& uuid, 274 tSDP_DISC_ATTR* p_attr); 275 276 extern void sdpu_sort_attr_list(uint16_t num_attr, tSDP_DISCOVERY_DB* p_db); 277 extern uint16_t sdpu_get_list_len(tSDP_UUID_SEQ* uid_seq, 278 tSDP_ATTR_SEQ* attr_seq); 279 extern uint16_t sdpu_get_attrib_seq_len(tSDP_RECORD* p_rec, 280 tSDP_ATTR_SEQ* attr_seq); 281 extern uint16_t sdpu_get_attrib_entry_len(tSDP_ATTRIBUTE* p_attr); 282 extern uint8_t* sdpu_build_partial_attrib_entry(uint8_t* p_out, 283 tSDP_ATTRIBUTE* p_attr, 284 uint16_t len, uint16_t* offset); 285 286 /* Functions provided by sdp_db.cc 287 */ 288 extern tSDP_RECORD* sdp_db_service_search(tSDP_RECORD* p_rec, 289 tSDP_UUID_SEQ* p_seq); 290 extern tSDP_RECORD* sdp_db_find_record(uint32_t handle); 291 extern tSDP_ATTRIBUTE* sdp_db_find_attr_in_rec(tSDP_RECORD* p_rec, 292 uint16_t start_attr, 293 uint16_t end_attr); 294 295 /* Functions provided by sdp_server.cc 296 */ 297 #if (SDP_SERVER_ENABLED == TRUE) 298 extern void sdp_server_handle_client_req(tCONN_CB* p_ccb, BT_HDR* p_msg); 299 #else 300 #define sdp_server_handle_client_req(p_ccb, p_msg) 301 #endif 302 303 /* Functions provided by sdp_discovery.cc 304 */ 305 extern void sdp_disc_connected(tCONN_CB* p_ccb); 306 extern void sdp_disc_server_rsp(tCONN_CB* p_ccb, BT_HDR* p_msg); 307 308 #endif 309