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 Protocol Data Unit (PDU) types. 42 */ 43 #define SDP_PDU_ERROR_RESPONSE 0x01 44 #define SDP_PDU_SERVICE_SEARCH_REQ 0x02 45 #define SDP_PDU_SERVICE_SEARCH_RSP 0x03 46 #define SDP_PDU_SERVICE_ATTR_REQ 0x04 47 #define SDP_PDU_SERVICE_ATTR_RSP 0x05 48 #define SDP_PDU_SERVICE_SEARCH_ATTR_REQ 0x06 49 #define SDP_PDU_SERVICE_SEARCH_ATTR_RSP 0x07 50 51 /* Max UUIDs and attributes we support per sequence */ 52 #define MAX_UUIDS_PER_SEQ 16 53 #define MAX_ATTR_PER_SEQ 16 54 55 /* Max length we support for any attribute */ 56 #ifdef SDP_MAX_ATTR_LEN 57 #define MAX_ATTR_LEN SDP_MAX_ATTR_LEN 58 #else 59 #define MAX_ATTR_LEN 256 60 #endif 61 62 /* Internal UUID sequence representation */ 63 typedef struct { 64 uint16_t len; 65 uint8_t value[bluetooth::Uuid::kNumBytes128]; 66 } tUID_ENT; 67 68 typedef struct { 69 uint16_t num_uids; 70 tUID_ENT uuid_entry[MAX_UUIDS_PER_SEQ]; 71 } tSDP_UUID_SEQ; 72 73 /* Internal attribute sequence definitions */ 74 typedef struct { 75 uint16_t start; 76 uint16_t end; 77 } tATT_ENT; 78 79 typedef struct { 80 uint16_t num_attr; 81 tATT_ENT attr_entry[MAX_ATTR_PER_SEQ]; 82 } tSDP_ATTR_SEQ; 83 84 /* Define the attribute element of the SDP database record */ 85 typedef struct { 86 uint32_t len; /* Number of bytes in the entry */ 87 uint8_t* value_ptr; /* Points to attr_pad */ 88 uint16_t id; 89 uint8_t type; 90 } tSDP_ATTRIBUTE; 91 92 /* An SDP record consists of a handle, and 1 or more attributes */ 93 typedef struct { 94 uint32_t record_handle; 95 uint32_t free_pad_ptr; 96 uint16_t num_attributes; 97 tSDP_ATTRIBUTE attribute[SDP_MAX_REC_ATTR]; 98 uint8_t attr_pad[SDP_MAX_PAD_LEN]; 99 } tSDP_RECORD; 100 101 /* Define the SDP database */ 102 typedef struct { 103 uint32_t 104 di_primary_handle; /* Device ID Primary record or NULL if nonexistent */ 105 uint16_t num_records; 106 tSDP_RECORD record[SDP_MAX_RECORDS]; 107 } tSDP_DB; 108 109 /* Continuation information for the SDP server response */ 110 typedef struct { 111 uint16_t next_attr_index; /* attr index for next continuation response */ 112 uint16_t next_attr_start_id; /* attr id to start with for the attr index in 113 next cont. response */ 114 tSDP_RECORD* prev_sdp_rec; /* last sdp record that was completely sent in the 115 response */ 116 bool last_attr_seq_desc_sent; /* whether attr seq length has been sent 117 previously */ 118 uint16_t attr_offset; /* offset within the attr to keep trak of partial 119 attributes in the responses */ 120 } tSDP_CONT_INFO; 121 122 /* Define the SDP Connection Control Block */ 123 typedef struct { 124 #define SDP_STATE_IDLE 0 125 #define SDP_STATE_CONN_SETUP 1 126 #define SDP_STATE_CFG_SETUP 2 127 #define SDP_STATE_CONNECTED 3 128 uint8_t con_state; 129 130 #define SDP_FLAGS_IS_ORIG 0x01 131 #define SDP_FLAGS_HIS_CFG_DONE 0x02 132 #define SDP_FLAGS_MY_CFG_DONE 0x04 133 uint8_t con_flags; 134 135 RawAddress device_address; 136 alarm_t* sdp_conn_timer; 137 uint16_t rem_mtu_size; 138 uint16_t connection_id; 139 uint16_t list_len; /* length of the response in the GKI buffer */ 140 uint8_t* rsp_list; /* pointer to GKI buffer holding response */ 141 142 tSDP_DISCOVERY_DB* p_db; /* Database to save info into */ 143 tSDP_DISC_CMPL_CB* p_cb; /* Callback for discovery done */ 144 tSDP_DISC_CMPL_CB2* 145 p_cb2; /* Callback for discovery done piggy back with the user data */ 146 void* user_data; /* piggy back user data */ 147 uint32_t 148 handles[SDP_MAX_DISC_SERVER_RECS]; /* Discovered server record handles */ 149 uint16_t num_handles; /* Number of server handles */ 150 uint16_t cur_handle; /* Current handle being processed */ 151 uint16_t transaction_id; 152 uint16_t disconnect_reason; /* Disconnect reason */ 153 154 #define SDP_DISC_WAIT_CONN 0 155 #define SDP_DISC_WAIT_HANDLES 1 156 #define SDP_DISC_WAIT_ATTR 2 157 #define SDP_DISC_WAIT_SEARCH_ATTR 3 158 #define SDP_DISC_WAIT_CANCEL 5 159 160 uint8_t disc_state; 161 uint8_t is_attr_search; 162 163 uint16_t cont_offset; /* Continuation state data in the server response */ 164 tSDP_CONT_INFO cont_info; /* structure to hold continuation information for 165 the server response */ 166 167 } tCONN_CB; 168 169 /* The main SDP control block */ 170 typedef struct { 171 tL2CAP_CFG_INFO l2cap_my_cfg; /* My L2CAP config */ 172 tCONN_CB ccb[SDP_MAX_CONNECTIONS]; 173 tSDP_DB server_db; 174 tL2CAP_APPL_INFO reg_info; /* L2CAP Registration info */ 175 uint16_t max_attr_list_size; /* Max attribute list size to use */ 176 uint16_t max_recs_per_search; /* Max records we want per seaarch */ 177 uint8_t trace_level; 178 } tSDP_CB; 179 180 /* Global SDP data */ 181 extern tSDP_CB sdp_cb; 182 183 /* Functions provided by sdp_main.cc */ 184 extern void sdp_init(void); 185 extern void sdp_free(void); 186 extern void sdp_disconnect(tCONN_CB* p_ccb, tSDP_REASON reason); 187 188 extern void sdp_conn_timer_timeout(void* data); 189 190 extern tCONN_CB* sdp_conn_originate(const RawAddress& p_bd_addr); 191 192 /* Functions provided by sdp_utils.cc 193 */ 194 extern void sdpu_log_attribute_metrics(const RawAddress& bda, 195 tSDP_DISCOVERY_DB* p_db); 196 extern tCONN_CB* sdpu_find_ccb_by_cid(uint16_t cid); 197 extern tCONN_CB* sdpu_find_ccb_by_db(tSDP_DISCOVERY_DB* p_db); 198 extern tCONN_CB* sdpu_allocate_ccb(void); 199 extern void sdpu_release_ccb(tCONN_CB* p_ccb); 200 201 extern uint8_t* sdpu_build_attrib_seq(uint8_t* p_out, uint16_t* p_attr, 202 uint16_t num_attrs); 203 extern uint8_t* sdpu_build_attrib_entry(uint8_t* p_out, tSDP_ATTRIBUTE* p_attr); 204 extern void sdpu_build_n_send_error(tCONN_CB* p_ccb, uint16_t trans_num, 205 uint16_t error_code, char* p_error_text); 206 207 extern uint8_t* sdpu_extract_attr_seq(uint8_t* p, uint16_t param_len, 208 tSDP_ATTR_SEQ* p_seq); 209 extern uint8_t* sdpu_extract_uid_seq(uint8_t* p, uint16_t param_len, 210 tSDP_UUID_SEQ* p_seq); 211 212 extern uint8_t* sdpu_get_len_from_type(uint8_t* p, uint8_t* p_end, uint8_t type, 213 uint32_t* p_len); 214 extern bool sdpu_is_base_uuid(uint8_t* p_uuid); 215 extern bool sdpu_compare_uuid_arrays(uint8_t* p_uuid1, uint32_t len1, 216 uint8_t* p_uuid2, uint16_t len2); 217 extern bool sdpu_compare_uuid_with_attr(const bluetooth::Uuid& uuid, 218 tSDP_DISC_ATTR* p_attr); 219 220 extern void sdpu_sort_attr_list(uint16_t num_attr, tSDP_DISCOVERY_DB* p_db); 221 extern uint16_t sdpu_get_list_len(tSDP_UUID_SEQ* uid_seq, 222 tSDP_ATTR_SEQ* attr_seq); 223 extern uint16_t sdpu_get_attrib_seq_len(tSDP_RECORD* p_rec, 224 tSDP_ATTR_SEQ* attr_seq); 225 extern uint16_t sdpu_get_attrib_entry_len(tSDP_ATTRIBUTE* p_attr); 226 extern uint8_t* sdpu_build_partial_attrib_entry(uint8_t* p_out, 227 tSDP_ATTRIBUTE* p_attr, 228 uint16_t len, uint16_t* offset); 229 extern uint16_t sdpu_is_avrcp_profile_description_list(tSDP_ATTRIBUTE* p_attr); 230 231 /* Functions provided by sdp_db.cc 232 */ 233 extern tSDP_RECORD* sdp_db_service_search(tSDP_RECORD* p_rec, 234 tSDP_UUID_SEQ* p_seq); 235 extern tSDP_RECORD* sdp_db_find_record(uint32_t handle); 236 extern tSDP_ATTRIBUTE* sdp_db_find_attr_in_rec(tSDP_RECORD* p_rec, 237 uint16_t start_attr, 238 uint16_t end_attr); 239 240 /* Functions provided by sdp_server.cc 241 */ 242 extern void sdp_server_handle_client_req(tCONN_CB* p_ccb, BT_HDR* p_msg); 243 244 /* Functions provided by sdp_discovery.cc 245 */ 246 extern void sdp_disc_connected(tCONN_CB* p_ccb); 247 extern void sdp_disc_server_rsp(tCONN_CB* p_ccb, BT_HDR* p_msg); 248 249 #endif 250