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114 lines
3.7 KiB
114 lines
3.7 KiB
/****************************************************************************** |
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* |
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* Copyright (C) 2009-2012 Broadcom Corporation |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at: |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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******************************************************************************/ |
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/******************************************************************************* |
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* |
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* Filename: btif_pan_internal.h |
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* |
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* Description: Bluetooth pan internal |
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* |
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******************************************************************************/ |
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#ifndef BTIF_PAN_INTERNAL_H |
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#define BTIF_PAN_INTERNAL_H |
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#include "bt_types.h" |
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#include "btif_pan.h" |
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/******************************************************************************* |
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* Constants & Macros |
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******************************************************************************/ |
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#define PAN_NAP_SERVICE_NAME "Android Network Access Point" |
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#define PANU_SERVICE_NAME "Android Network User" |
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#define TAP_IF_NAME "bt-pan" |
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#define TAP_MAX_PKT_WRITE_LEN 2000 |
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#ifndef PAN_SECURITY |
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#define PAN_SECURITY \ |
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(BTM_SEC_IN_AUTHENTICATE | BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_IN_ENCRYPT | \ |
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BTM_SEC_OUT_ENCRYPT) |
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#endif |
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#define PAN_STATE_UNKNOWN 0 |
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#define PAN_STATE_OPEN 1 |
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#define PAN_STATE_CLOSE 2 |
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#ifndef PAN_ROLE_INACTIVE |
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#define PAN_ROLE_INACTIVE 0 |
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#endif |
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/******************************************************************************* |
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* Type definitions and return values |
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******************************************************************************/ |
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typedef struct eth_hdr { |
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RawAddress h_dest; |
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RawAddress h_src; |
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short h_proto; |
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} tETH_HDR; |
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typedef struct { |
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int handle; |
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int state; |
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uint16_t protocol; |
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RawAddress peer; |
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int local_role; |
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int remote_role; |
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RawAddress eth_addr; |
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} btpan_conn_t; |
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typedef struct { |
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int btl_if_handle; |
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int btl_if_handle_panu; |
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int tap_fd; |
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int enabled; |
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int open_count; |
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int flow; // 1: outbound data flow on; 0: outbound data flow off |
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btpan_conn_t conns[MAX_PAN_CONNS]; |
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int congest_packet_size; |
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unsigned char congest_packet[1600]; // max ethernet packet size |
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} btpan_cb_t; |
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/******************************************************************************* |
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* Functions |
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******************************************************************************/ |
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extern btpan_cb_t btpan_cb; |
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btpan_conn_t* btpan_new_conn(int handle, const RawAddress& addr, int local_role, |
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int peer_role); |
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btpan_conn_t* btpan_find_conn_addr(const RawAddress& addr); |
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btpan_conn_t* btpan_find_conn_handle(uint16_t handle); |
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void btpan_set_flow_control(bool enable); |
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int btpan_get_connected_count(void); |
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int btpan_tap_open(void); |
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void create_tap_read_thread(int tap_fd); |
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void destroy_tap_read_thread(void); |
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int btpan_tap_close(int tap_fd); |
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int btpan_tap_send(int tap_fd, const RawAddress& src, const RawAddress& dst, |
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uint16_t protocol, const char* buff, uint16_t size, bool ext, |
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bool forward); |
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static inline int is_empty_eth_addr(const RawAddress& addr) { |
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return addr == RawAddress::kEmpty; |
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} |
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static inline int is_valid_bt_eth_addr(const RawAddress& addr) { |
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if (is_empty_eth_addr(addr)) return 0; |
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return addr.address[0] & 1 ? 0 : 1; /* Cannot be multicasting address */ |
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} |
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#endif
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