1 /****************************************************************************** 2 * 3 * Copyright 2001-2012 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 BNEP definitions 22 * 23 ******************************************************************************/ 24 25 #ifndef BNEP_INT_H 26 #define BNEP_INT_H 27 28 #include "bnep_api.h" 29 #include "internal_include/bt_target.h" 30 #include "osi/include/alarm.h" 31 #include "osi/include/fixed_queue.h" 32 #include "stack/include/bt_hdr.h" 33 #include "stack/include/l2cap_interface.h" 34 #include "types/bluetooth/uuid.h" 35 #include "types/raw_address.h" 36 37 /* BNEP frame types 38 */ 39 #define BNEP_FRAME_GENERAL_ETHERNET 0x00 40 #define BNEP_FRAME_CONTROL 0x01 41 #define BNEP_FRAME_COMPRESSED_ETHERNET 0x02 42 #define BNEP_FRAME_COMPRESSED_ETHERNET_SRC_ONLY 0x03 43 #define BNEP_FRAME_COMPRESSED_ETHERNET_DEST_ONLY 0x04 44 45 /* BNEP filter control message types 46 */ 47 #define BNEP_CONTROL_COMMAND_NOT_UNDERSTOOD 0x00 48 #define BNEP_SETUP_CONNECTION_REQUEST_MSG 0x01 49 #define BNEP_SETUP_CONNECTION_RESPONSE_MSG 0x02 50 #define BNEP_FILTER_NET_TYPE_SET_MSG 0x03 51 #define BNEP_FILTER_NET_TYPE_RESPONSE_MSG 0x04 52 #define BNEP_FILTER_MULTI_ADDR_SET_MSG 0x05 53 #define BNEP_FILTER_MULTI_ADDR_RESPONSE_MSG 0x06 54 55 /* BNEP header extension types 56 */ 57 #define BNEP_EXTENSION_FILTER_CONTROL 0x00 58 59 /* BNEP Setup Connection response codes 60 */ 61 #define BNEP_SETUP_CONN_OK 0x0000 62 #define BNEP_SETUP_INVALID_DEST_UUID 0x0001 63 #define BNEP_SETUP_INVALID_SRC_UUID 0x0002 64 #define BNEP_SETUP_INVALID_UUID_SIZE 0x0003 65 #define BNEP_SETUP_CONN_NOT_ALLOWED 0x0004 66 67 /* BNEP filter control response codes 68 */ 69 #define BNEP_FILTER_CRL_OK 0x0000 70 #define BNEP_FILTER_CRL_UNSUPPORTED 0x0001 71 #define BNEP_FILTER_CRL_BAD_RANGE 0x0002 72 #define BNEP_FILTER_CRL_MAX_REACHED 0x0003 73 #define BNEP_FILTER_CRL_SECURITY_ERR 0x0004 74 75 /* 802.1p protocol packet will have actual protocol field in side the payload */ 76 #define BNEP_802_1_P_PROTOCOL 0x8100 77 78 /* Timeout definitions. */ 79 /* Connection related timeout */ 80 #define BNEP_CONN_TIMEOUT_MS (20 * 1000) 81 /* host response timeout */ 82 #define BNEP_HOST_TIMEOUT_MS (200 * 1000) 83 #define BNEP_FILTER_SET_TIMEOUT_MS (10 * 1000) 84 85 #define BNEP_MAX_RETRANSMITS 3 86 87 /* Define the BNEP Connection Control Block 88 */ 89 typedef struct { 90 #define BNEP_STATE_IDLE 0 91 #define BNEP_STATE_CONN_START 1 92 #define BNEP_STATE_CFG_SETUP 2 93 #define BNEP_STATE_CONN_SETUP 3 94 #define BNEP_STATE_SEC_CHECKING 4 95 #define BNEP_STATE_SETUP_RCVD 5 96 #define BNEP_STATE_CONNECTED 6 97 uint8_t con_state; 98 99 #define BNEP_FLAGS_IS_ORIG 0x01 100 #define BNEP_FLAGS_HIS_CFG_DONE 0x02 101 #define BNEP_FLAGS_MY_CFG_DONE 0x04 102 #define BNEP_FLAGS_L2CAP_CONGESTED 0x08 103 #define BNEP_FLAGS_FILTER_RESP_PEND 0x10 104 #define BNEP_FLAGS_MULTI_RESP_PEND 0x20 105 #define BNEP_FLAGS_SETUP_RCVD 0x40 106 #define BNEP_FLAGS_CONN_COMPLETED 0x80 107 uint8_t con_flags; 108 BT_HDR* p_pending_data; 109 110 uint16_t l2cap_cid; 111 RawAddress rem_bda; 112 alarm_t* conn_timer; 113 fixed_queue_t* xmit_q; 114 115 uint16_t sent_num_filters; 116 uint16_t sent_prot_filter_start[BNEP_MAX_PROT_FILTERS]; 117 uint16_t sent_prot_filter_end[BNEP_MAX_PROT_FILTERS]; 118 119 uint16_t sent_mcast_filters; 120 RawAddress sent_mcast_filter_start[BNEP_MAX_MULTI_FILTERS]; 121 RawAddress sent_mcast_filter_end[BNEP_MAX_MULTI_FILTERS]; 122 123 uint16_t rcvd_num_filters; 124 uint16_t rcvd_prot_filter_start[BNEP_MAX_PROT_FILTERS]; 125 uint16_t rcvd_prot_filter_end[BNEP_MAX_PROT_FILTERS]; 126 127 uint16_t rcvd_mcast_filters; 128 RawAddress rcvd_mcast_filter_start[BNEP_MAX_MULTI_FILTERS]; 129 RawAddress rcvd_mcast_filter_end[BNEP_MAX_MULTI_FILTERS]; 130 131 uint16_t bad_pkts_rcvd; 132 uint8_t re_transmits; 133 uint16_t handle; 134 bluetooth::Uuid prv_src_uuid; 135 bluetooth::Uuid prv_dst_uuid; 136 bluetooth::Uuid src_uuid; 137 bluetooth::Uuid dst_uuid; 138 } tBNEP_CONN; 139 140 /* The main BNEP control block 141 */ 142 typedef struct { 143 tL2CAP_CFG_INFO l2cap_my_cfg; /* My L2CAP config */ 144 tBNEP_CONN bcb[BNEP_MAX_CONNECTIONS]; 145 146 tBNEP_CONNECT_IND_CB* p_conn_ind_cb; 147 tBNEP_CONN_STATE_CB* p_conn_state_cb; 148 tBNEP_DATA_IND_CB* p_data_ind_cb; 149 tBNEP_DATA_BUF_CB* p_data_buf_cb; 150 tBNEP_FILTER_IND_CB* p_filter_ind_cb; 151 tBNEP_MFILTER_IND_CB* p_mfilter_ind_cb; 152 tBNEP_TX_DATA_FLOW_CB* p_tx_data_flow_cb; 153 154 tL2CAP_APPL_INFO reg_info; 155 156 bool profile_registered; /* true when we got our BD addr */ 157 } tBNEP_CB; 158 159 /* Global BNEP data 160 */ 161 extern tBNEP_CB bnep_cb; 162 163 /* Functions provided by bnep_main.cc 164 */ 165 tBNEP_RESULT bnep_register_with_l2cap(void); 166 void bnep_disconnect(tBNEP_CONN* p_bcb, uint16_t reason); 167 tBNEP_CONN* bnep_conn_originate(uint8_t* p_bd_addr); 168 void bnep_conn_timer_timeout(void* data); 169 void bnep_connected(tBNEP_CONN* p_bcb); 170 171 /* Functions provided by bnep_utils.cc 172 */ 173 tBNEP_CONN* bnepu_find_bcb_by_cid(uint16_t cid); 174 tBNEP_CONN* bnepu_find_bcb_by_bd_addr(const RawAddress& p_bda); 175 tBNEP_CONN* bnepu_allocate_bcb(const RawAddress& p_rem_bda); 176 void bnepu_release_bcb(tBNEP_CONN* p_bcb); 177 void bnepu_send_peer_our_filters(tBNEP_CONN* p_bcb); 178 void bnepu_send_peer_our_multi_filters(tBNEP_CONN* p_bcb); 179 bool bnepu_does_dest_support_prot(tBNEP_CONN* p_bcb, uint16_t protocol); 180 void bnepu_build_bnep_hdr(tBNEP_CONN* p_bcb, BT_HDR* p_buf, uint16_t protocol, 181 const RawAddress& src_addr, const RawAddress& dest_addr, bool ext_bit); 182 void test_bnepu_build_bnep_hdr(tBNEP_CONN* p_bcb, BT_HDR* p_buf, uint16_t protocol, 183 uint8_t* p_src_addr, uint8_t* p_dest_addr, uint8_t type); 184 185 tBNEP_CONN* bnepu_get_route_to_dest(uint8_t* p_bda); 186 void bnepu_check_send_packet(tBNEP_CONN* p_bcb, BT_HDR* p_buf); 187 void bnep_send_command_not_understood(tBNEP_CONN* p_bcb, uint8_t cmd_code); 188 void bnepu_process_peer_filter_set(tBNEP_CONN* p_bcb, uint8_t* p_filters, uint16_t len); 189 void bnepu_process_peer_filter_rsp(tBNEP_CONN* p_bcb, uint8_t* p_data); 190 void bnepu_process_multicast_filter_rsp(tBNEP_CONN* p_bcb, uint8_t* p_data); 191 void bnep_send_conn_req(tBNEP_CONN* p_bcb); 192 void bnep_send_conn_response(tBNEP_CONN* p_bcb, uint16_t resp_code); 193 void bnep_process_setup_conn_req(tBNEP_CONN* p_bcb, uint8_t* p_setup, uint8_t len); 194 void bnep_process_setup_conn_response(tBNEP_CONN* p_bcb, uint8_t* p_setup); 195 uint8_t* bnep_process_control_packet(tBNEP_CONN* p_bcb, uint8_t* p, uint16_t* len, bool is_ext); 196 void bnep_sec_check_complete(const RawAddress* bd_addr, tBT_TRANSPORT transport, void* p_ref_data); 197 tBNEP_RESULT bnep_is_packet_allowed(tBNEP_CONN* p_bcb, const RawAddress& dest_addr, 198 uint16_t protocol, bool fw_ext_present, uint8_t* p_data, 199 uint16_t org_len); 200 201 #endif 202