/****************************************************************************** * * Copyright 1999-2012 Broadcom Corporation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ******************************************************************************/ /****************************************************************************** * * This file contains internally used SDP definitions * ******************************************************************************/ #ifndef SDP_INT_H #define SDP_INT_H #include "bluetooth/uuid.h" #include "bt_target.h" #include "l2c_api.h" #include "osi/include/alarm.h" #include "sdp_api.h" /* Continuation length - we use a 2-byte offset */ #define SDP_CONTINUATION_LEN 2 #define SDP_MAX_CONTINUATION_LEN 16 /* As per the spec */ /* Timeout definitions. */ #define SDP_INACT_TIMEOUT_MS (30 * 1000) /* Inactivity timeout (in ms) */ /* Define the Protocol Data Unit (PDU) types. */ #define SDP_PDU_ERROR_RESPONSE 0x01 #define SDP_PDU_SERVICE_SEARCH_REQ 0x02 #define SDP_PDU_SERVICE_SEARCH_RSP 0x03 #define SDP_PDU_SERVICE_ATTR_REQ 0x04 #define SDP_PDU_SERVICE_ATTR_RSP 0x05 #define SDP_PDU_SERVICE_SEARCH_ATTR_REQ 0x06 #define SDP_PDU_SERVICE_SEARCH_ATTR_RSP 0x07 /* Max UUIDs and attributes we support per sequence */ #define MAX_UUIDS_PER_SEQ 16 #define MAX_ATTR_PER_SEQ 16 /* Max length we support for any attribute */ #ifdef SDP_MAX_ATTR_LEN #define MAX_ATTR_LEN SDP_MAX_ATTR_LEN #else #define MAX_ATTR_LEN 256 #endif /* Internal UUID sequence representation */ typedef struct { uint16_t len; uint8_t value[bluetooth::Uuid::kNumBytes128]; } tUID_ENT; typedef struct { uint16_t num_uids; tUID_ENT uuid_entry[MAX_UUIDS_PER_SEQ]; } tSDP_UUID_SEQ; /* Internal attribute sequence definitions */ typedef struct { uint16_t start; uint16_t end; } tATT_ENT; typedef struct { uint16_t num_attr; tATT_ENT attr_entry[MAX_ATTR_PER_SEQ]; } tSDP_ATTR_SEQ; /* Define the attribute element of the SDP database record */ typedef struct { uint32_t len; /* Number of bytes in the entry */ uint8_t* value_ptr; /* Points to attr_pad */ uint16_t id; uint8_t type; } tSDP_ATTRIBUTE; /* An SDP record consists of a handle, and 1 or more attributes */ typedef struct { uint32_t record_handle; uint32_t free_pad_ptr; uint16_t num_attributes; tSDP_ATTRIBUTE attribute[SDP_MAX_REC_ATTR]; uint8_t attr_pad[SDP_MAX_PAD_LEN]; } tSDP_RECORD; /* Define the SDP database */ typedef struct { uint32_t di_primary_handle; /* Device ID Primary record or NULL if nonexistent */ uint16_t num_records; tSDP_RECORD record[SDP_MAX_RECORDS]; } tSDP_DB; /* Continuation information for the SDP server response */ typedef struct { uint16_t next_attr_index; /* attr index for next continuation response */ uint16_t next_attr_start_id; /* attr id to start with for the attr index in next cont. response */ tSDP_RECORD* prev_sdp_rec; /* last sdp record that was completely sent in the response */ bool last_attr_seq_desc_sent; /* whether attr seq length has been sent previously */ uint16_t attr_offset; /* offset within the attr to keep trak of partial attributes in the responses */ } tSDP_CONT_INFO; /* Define the SDP Connection Control Block */ typedef struct { #define SDP_STATE_IDLE 0 #define SDP_STATE_CONN_SETUP 1 #define SDP_STATE_CFG_SETUP 2 #define SDP_STATE_CONNECTED 3 uint8_t con_state; #define SDP_FLAGS_IS_ORIG 0x01 #define SDP_FLAGS_HIS_CFG_DONE 0x02 #define SDP_FLAGS_MY_CFG_DONE 0x04 uint8_t con_flags; RawAddress device_address; alarm_t* sdp_conn_timer; uint16_t rem_mtu_size; uint16_t connection_id; uint16_t list_len; /* length of the response in the GKI buffer */ uint8_t* rsp_list; /* pointer to GKI buffer holding response */ tSDP_DISCOVERY_DB* p_db; /* Database to save info into */ tSDP_DISC_CMPL_CB* p_cb; /* Callback for discovery done */ tSDP_DISC_CMPL_CB2* p_cb2; /* Callback for discovery done piggy back with the user data */ void* user_data; /* piggy back user data */ uint32_t handles[SDP_MAX_DISC_SERVER_RECS]; /* Discovered server record handles */ uint16_t num_handles; /* Number of server handles */ uint16_t cur_handle; /* Current handle being processed */ uint16_t transaction_id; uint16_t disconnect_reason; /* Disconnect reason */ #define SDP_DISC_WAIT_CONN 0 #define SDP_DISC_WAIT_HANDLES 1 #define SDP_DISC_WAIT_ATTR 2 #define SDP_DISC_WAIT_SEARCH_ATTR 3 #define SDP_DISC_WAIT_CANCEL 5 uint8_t disc_state; uint8_t is_attr_search; uint16_t cont_offset; /* Continuation state data in the server response */ tSDP_CONT_INFO cont_info; /* structure to hold continuation information for the server response */ } tCONN_CB; /* The main SDP control block */ typedef struct { tL2CAP_CFG_INFO l2cap_my_cfg; /* My L2CAP config */ tCONN_CB ccb[SDP_MAX_CONNECTIONS]; tSDP_DB server_db; tL2CAP_APPL_INFO reg_info; /* L2CAP Registration info */ uint16_t max_attr_list_size; /* Max attribute list size to use */ uint16_t max_recs_per_search; /* Max records we want per seaarch */ uint8_t trace_level; } tSDP_CB; /* Global SDP data */ extern tSDP_CB sdp_cb; /* Functions provided by sdp_main.cc */ extern void sdp_init(void); extern void sdp_free(void); extern void sdp_disconnect(tCONN_CB* p_ccb, tSDP_REASON reason); extern void sdp_conn_timer_timeout(void* data); extern tCONN_CB* sdp_conn_originate(const RawAddress& p_bd_addr); /* Functions provided by sdp_utils.cc */ extern void sdpu_log_attribute_metrics(const RawAddress& bda, tSDP_DISCOVERY_DB* p_db); extern tCONN_CB* sdpu_find_ccb_by_cid(uint16_t cid); extern tCONN_CB* sdpu_find_ccb_by_db(tSDP_DISCOVERY_DB* p_db); extern tCONN_CB* sdpu_allocate_ccb(void); extern void sdpu_release_ccb(tCONN_CB* p_ccb); extern uint8_t* sdpu_build_attrib_seq(uint8_t* p_out, uint16_t* p_attr, uint16_t num_attrs); extern uint8_t* sdpu_build_attrib_entry(uint8_t* p_out, tSDP_ATTRIBUTE* p_attr); extern void sdpu_build_n_send_error(tCONN_CB* p_ccb, uint16_t trans_num, uint16_t error_code, char* p_error_text); extern uint8_t* sdpu_extract_attr_seq(uint8_t* p, uint16_t param_len, tSDP_ATTR_SEQ* p_seq); extern uint8_t* sdpu_extract_uid_seq(uint8_t* p, uint16_t param_len, tSDP_UUID_SEQ* p_seq); extern uint8_t* sdpu_get_len_from_type(uint8_t* p, uint8_t* p_end, uint8_t type, uint32_t* p_len); extern bool sdpu_is_base_uuid(uint8_t* p_uuid); extern bool sdpu_compare_uuid_arrays(uint8_t* p_uuid1, uint32_t len1, uint8_t* p_uuid2, uint16_t len2); extern bool sdpu_compare_uuid_with_attr(const bluetooth::Uuid& uuid, tSDP_DISC_ATTR* p_attr); extern void sdpu_sort_attr_list(uint16_t num_attr, tSDP_DISCOVERY_DB* p_db); extern uint16_t sdpu_get_list_len(tSDP_UUID_SEQ* uid_seq, tSDP_ATTR_SEQ* attr_seq); extern uint16_t sdpu_get_attrib_seq_len(tSDP_RECORD* p_rec, tSDP_ATTR_SEQ* attr_seq); extern uint16_t sdpu_get_attrib_entry_len(tSDP_ATTRIBUTE* p_attr); extern uint8_t* sdpu_build_partial_attrib_entry(uint8_t* p_out, tSDP_ATTRIBUTE* p_attr, uint16_t len, uint16_t* offset); extern uint16_t sdpu_is_avrcp_profile_description_list(tSDP_ATTRIBUTE* p_attr); /* Functions provided by sdp_db.cc */ extern tSDP_RECORD* sdp_db_service_search(tSDP_RECORD* p_rec, tSDP_UUID_SEQ* p_seq); extern tSDP_RECORD* sdp_db_find_record(uint32_t handle); extern tSDP_ATTRIBUTE* sdp_db_find_attr_in_rec(tSDP_RECORD* p_rec, uint16_t start_attr, uint16_t end_attr); /* Functions provided by sdp_server.cc */ extern void sdp_server_handle_client_req(tCONN_CB* p_ccb, BT_HDR* p_msg); /* Functions provided by sdp_discovery.cc */ extern void sdp_disc_connected(tCONN_CB* p_ccb); extern void sdp_disc_server_rsp(tCONN_CB* p_ccb, BT_HDR* p_msg); #endif