mirror of https://github.com/LeOS-GSI/LeOS-Genesis
89 lines
3.1 KiB
C
89 lines
3.1 KiB
C
/**
|
|
* @file KeepaliveIO.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.
|
|
*
|
|
* @section DESCRIPTION
|
|
*
|
|
* A {@link PacketPassInterface} layer for sending keep-alive packets.
|
|
*/
|
|
|
|
#ifndef BADVPN_KEEPALIVEIO
|
|
#define BADVPN_KEEPALIVEIO
|
|
|
|
#include <misc/debug.h>
|
|
#include <base/DebugObject.h>
|
|
#include <system/BReactor.h>
|
|
#include <flow/PacketPassInterface.h>
|
|
#include <flow/PacketRecvInterface.h>
|
|
#include <flow/PacketPassPriorityQueue.h>
|
|
#include <flow/SinglePacketBuffer.h>
|
|
#include <flow/PacketRecvBlocker.h>
|
|
#include <flowextra/PacketPassInactivityMonitor.h>
|
|
|
|
/**
|
|
* A {@link PacketPassInterface} layer for sending keep-alive packets.
|
|
*/
|
|
typedef struct {
|
|
BReactor *reactor;
|
|
PacketPassInactivityMonitor kasender;
|
|
PacketPassPriorityQueue queue;
|
|
PacketPassPriorityQueueFlow user_qflow;
|
|
PacketPassPriorityQueueFlow ka_qflow;
|
|
SinglePacketBuffer ka_buffer;
|
|
PacketRecvBlocker ka_blocker;
|
|
DebugObject d_obj;
|
|
} KeepaliveIO;
|
|
|
|
/**
|
|
* Initializes the object.
|
|
*
|
|
* @param o the object
|
|
* @param reactor reactor we live in
|
|
* @param output output interface
|
|
* @param keepalive_input keepalive input interface. Its MTU must be <= MTU of output.
|
|
* @param keepalive_interval_ms keepalive interval in milliseconds. Must be >0.
|
|
* @return 1 on success, 0 on failure
|
|
*/
|
|
int KeepaliveIO_Init (KeepaliveIO *o, BReactor *reactor, PacketPassInterface *output, PacketRecvInterface *keepalive_input, btime_t keepalive_interval_ms) WARN_UNUSED;
|
|
|
|
/**
|
|
* Frees the object.
|
|
*
|
|
* @param o the object
|
|
*/
|
|
void KeepaliveIO_Free (KeepaliveIO *o);
|
|
|
|
/**
|
|
* Returns the input interface.
|
|
*
|
|
* @param o the object
|
|
* @return input interface
|
|
*/
|
|
PacketPassInterface * KeepaliveIO_GetInput (KeepaliveIO *o);
|
|
|
|
#endif
|