tor-android/external/badvpn_dns/arpprobe/BArpProbe.h

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2015-01-25 11:08:34 +00:00
/**
* @file BArpProbe.h
* @author Ambroz Bizjak <ambrop7@gmail.com>
*
* @section LICENSE
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef BADVPN_BARPPROBE_H
#define BADVPN_BARPPROBE_H
#include <stdint.h>
#include <misc/debug.h>
#include <misc/debugerror.h>
#include <misc/arp_proto.h>
#include <misc/ethernet_proto.h>
#include <base/DebugObject.h>
#include <system/BDatagram.h>
#include <system/BReactor.h>
#define BARPPROBE_INITIAL_WAITRECV 1000
#define BARPPROBE_INITIAL_NUM_ATTEMPTS 6
#define BARPPROBE_NOEXIST_WAITRECV 15000
#define BARPPROBE_EXIST_WAITSEND 15000
#define BARPPROBE_EXIST_WAITRECV 10000
#define BARPPROBE_EXIST_NUM_NOREPLY 2
#define BARPPROBE_EXIST_PANIC_WAITRECV 1000
#define BARPPROBE_EXIST_PANIC_NUM_NOREPLY 6
#define BARPPROBE_EVENT_EXIST 1
#define BARPPROBE_EVENT_NOEXIST 2
#define BARPPROBE_EVENT_ERROR 3
typedef void (*BArpProbe_handler) (void *user, int event);
typedef struct {
uint32_t addr;
BReactor *reactor;
void *user;
BArpProbe_handler handler;
BDatagram dgram;
uint8_t if_mac[6];
PacketPassInterface *send_if;
int send_sending;
struct arp_packet send_packet;
PacketRecvInterface *recv_if;
struct arp_packet recv_packet;
BTimer timer;
int state;
int num_missed;
DebugError d_err;
DebugObject d_obj;
} BArpProbe;
int BArpProbe_Init (BArpProbe *o, const char *ifname, uint32_t addr, BReactor *reactor, void *user, BArpProbe_handler handler) WARN_UNUSED;
void BArpProbe_Free (BArpProbe *o);
#endif