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/*
* Copyright (c) 2017-2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Methods common to TCP and PF_LOCAL stream-based listeners
*/
#ifndef streamConnection_h
#define streamConnection_h
#include <src/core/forwarder.h>
#include <src/core/messagePacketType.h>
#include <src/io/addressPair.h>
#include <src/io/ioOperations.h>
#include <src/utils/address.h>
/**
* @function streamConnection_AcceptConnection
* @abstract Receive a connection from a remote peer
* @discussion
* We are the "server side" of the stream connection, so we need to accept the
* client connection and setup state for her.
*
* @param <#param1#>
* @return <#return#>
*/
IoOperations *streamConnection_AcceptConnection(Forwarder *forwarder, int fd,
AddressPair *pair,
bool isLocal);
/**
* @function streamConnection_OpenConnection
* @abstract Initiate a connection to a remote peer
* @discussion
* We are the "client side" of the stream connection. We'll create state for
* the peer, but it will be in the "down" state until the connection
* establishes.
*
* For TCP, both address pairs need to be the same address family: both INET
* or both INET6. The remote address must have the complete socket information
* (address, port). The local socket could be wildcarded or may specify down to
* the (address, port) pair.
*
* If the local address is IPADDR_ANY and the port is 0, then it is a normal
* call to "connect" that will use whatever local IP address and whatever local
* port for the connection. If either the address or port is set, the local
* socket will first be bound (via bind(2)), and then call connect().
*
* AF_UNIX is not yet supported
*
* If there's an error binding to the specified address or connecting to the
* remote address, will return NULL.
*
* @param pair (takes ownership of this) is the complete socket pair of
* (address, port) for each end, if INET or INET6.
* @return NULL on error, otherwise the connections IO operations.
*/
IoOperations *streamConnection_OpenConnection(Forwarder *forwarder,
AddressPair *pair, bool isLocal);
bool streamState_SendCommandResponse(IoOperations *ops, struct iovec *response);
#endif // streamConnection_h
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