84 lines
3.0 KiB
C
84 lines
3.0 KiB
C
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/**
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* @file PacketProtoFlow.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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* @section DESCRIPTION
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*
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* Buffer which encodes packets with PacketProto, with {@link BufferWriter}
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* input and {@link PacketPassInterface} output.
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*/
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#ifndef BADVPN_FLOW_PACKETPROTOFLOW_H
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#define BADVPN_FLOW_PACKETPROTOFLOW_H
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#include <misc/debug.h>
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#include <base/DebugObject.h>
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#include <flow/BufferWriter.h>
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#include <flow/PacketProtoEncoder.h>
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#include <flow/PacketBuffer.h>
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/**
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* Buffer which encodes packets with PacketProto, with {@link BufferWriter}
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* input and {@link PacketPassInterface} output.
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*/
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typedef struct {
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BufferWriter ainput;
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PacketProtoEncoder encoder;
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PacketBuffer buffer;
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DebugObject d_obj;
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} PacketProtoFlow;
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/**
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* Initializes the object.
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*
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* @param o the object
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* @param input_mtu maximum input packet size. Must be >=0 and <=PACKETPROTO_MAXPAYLOAD.
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* @param num_packets minimum number of packets the buffer should hold. Must be >0.
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* @param output output interface. Its MTU must be >=PACKETPROTO_ENCLEN(input_mtu).
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* @param pg pending group
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* @return 1 on success, 0 on failure
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*/
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int PacketProtoFlow_Init (PacketProtoFlow *o, int input_mtu, int num_packets, PacketPassInterface *output, BPendingGroup *pg) WARN_UNUSED;
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/**
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* Frees the object.
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*
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* @param o the object
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*/
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void PacketProtoFlow_Free (PacketProtoFlow *o);
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/**
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* Returns the input interface.
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*
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* @param o the object
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* @return input interface
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*/
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BufferWriter * PacketProtoFlow_GetInput (PacketProtoFlow *o);
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#endif
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