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/******************************************************************************
*
* Copyright (C) 2009-2012 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.
*
******************************************************************************/
/*******************************************************************************
*
* Filename: btif_pan_internal.h
*
* Description: Bluetooth pan internal
*
*******************************************************************************/
#ifndef BTIF_PAN_INTERNAL_H
#define BTIF_PAN_INTERNAL_H
#include "btif_pan.h"
#include "bt_types.h"
/*******************************************************************************
** Constants & Macros
********************************************************************************/
#define PAN_NAP_SERVICE_NAME "Android Network Access Point"
#define PANU_SERVICE_NAME "Android Network User"
#define TAP_IF_NAME "bt-pan"
#define ETH_ADDR_LEN 6
#ifndef PAN_SECURITY
#define PAN_SECURITY (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_IN_ENCRYPT | BTM_SEC_OUT_ENCRYPT)
#endif
#define PAN_STATE_UNKNOWN 0
#define PAN_STATE_OPEN 1
#define PAN_STATE_CLOSE 2
#ifndef PAN_ROLE_INACTIVE
#define PAN_ROLE_INACTIVE 0
#endif
/*******************************************************************************
** Type definitions and return values
********************************************************************************/
typedef struct eth_hdr
{
unsigned char h_dest[ETH_ADDR_LEN];
unsigned char h_src[ETH_ADDR_LEN];
short h_proto;
} tETH_HDR;
typedef struct
{
int handle;
int state;
UINT16 protocol;
BD_ADDR peer;
int local_role;
int remote_role;
unsigned char eth_addr[ETH_ADDR_LEN];
} btpan_conn_t;
typedef struct
{
int btl_if_handle;
int btl_if_handle_panu;
int tap_fd;
int enabled;
int open_count;
btpan_conn_t conns[MAX_PAN_CONNS];
} btpan_cb_t;
/*******************************************************************************
** Functions
********************************************************************************/
extern btpan_cb_t btpan_cb;
btpan_conn_t *btpan_new_conn(int handle, const BD_ADDR addr, int local_role, int peer_role);
btpan_conn_t *btpan_find_conn_addr(const BD_ADDR addr);
btpan_conn_t *btpan_find_conn_handle(UINT16 handle);
int btpan_get_connected_count(void);
int btpan_tap_open(void);
void create_tap_read_thread(int tap_fd);
void destroy_tap_read_thread(void);
int btpan_tap_close(int tap_fd);
int btpan_tap_send(int tap_fd, const BD_ADDR src, const BD_ADDR dst, UINT16 protocol,
const char* buff, UINT16 size, BOOLEAN ext, BOOLEAN forward);
static inline int is_empty_eth_addr(const BD_ADDR addr)
{
int i;
for(i = 0; i < BD_ADDR_LEN; i++)
if(addr[i] != 0)
return 0;
return 1;
}
static inline int is_valid_bt_eth_addr(const BD_ADDR addr)
{
if(is_empty_eth_addr(addr))
return 0;
return addr[0] & 1 ? 0 : 1; /* Cannot be multicasting address */
}
#endif
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