81 lines
2.7 KiB
C
81 lines
2.7 KiB
C
/**
|
|
* @file PacketProtoEncoder.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
|
|
*
|
|
* Object which encodes packets according to PacketProto.
|
|
*/
|
|
|
|
#ifndef BADVPN_FLOW_PACKETPROTOENCODER_H
|
|
#define BADVPN_FLOW_PACKETPROTOENCODER_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <base/DebugObject.h>
|
|
#include <flow/PacketRecvInterface.h>
|
|
|
|
/**
|
|
* Object which encodes packets according to PacketProto.
|
|
*
|
|
* Input is with {@link PacketRecvInterface}.
|
|
* Output is with {@link PacketRecvInterface}.
|
|
*/
|
|
typedef struct {
|
|
PacketRecvInterface *input;
|
|
PacketRecvInterface output;
|
|
uint8_t *output_packet;
|
|
DebugObject d_obj;
|
|
} PacketProtoEncoder;
|
|
|
|
/**
|
|
* Initializes the object.
|
|
*
|
|
* @param enc the object
|
|
* @param input input interface. Its MTU must be <=PACKETPROTO_MAXPAYLOAD.
|
|
* @param pg pending group
|
|
*/
|
|
void PacketProtoEncoder_Init (PacketProtoEncoder *enc, PacketRecvInterface *input, BPendingGroup *pg);
|
|
|
|
/**
|
|
* Frees the object.
|
|
*
|
|
* @param enc the object
|
|
*/
|
|
void PacketProtoEncoder_Free (PacketProtoEncoder *enc);
|
|
|
|
/**
|
|
* Returns the output interface.
|
|
* The MTU of the output interface is PACKETPROTO_ENCLEN(MTU of input interface).
|
|
*
|
|
* @param enc the object
|
|
* @return output interface
|
|
*/
|
|
PacketRecvInterface * PacketProtoEncoder_GetOutput (PacketProtoEncoder *enc);
|
|
|
|
#endif
|