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