113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
/****************************************************************************
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* net/tcp/tcp_ipselect.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifdef CONFIG_NET
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#include <stdint.h>
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#include <debug.h>
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#include <net/if.h>
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#include <nuttx/net/netdev.h>
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#include <nuttx/net/tcp.h>
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#include "tcp/tcp.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: tcp_ipv4_select
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*
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* Description:
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* Configure to send or receive an TCP IPv4 packet
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IPv4
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void tcp_ipv4_select(FAR struct net_driver_s *dev)
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{
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/* Clear a bit in the d_flags to distinguish this from an IPv6 packet */
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IFF_SET_IPv4(dev->d_flags);
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/* Set the offset to the beginning of the TCP data payload */
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dev->d_appdata = IPBUF(IPv4TCP_HDRLEN);
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}
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#endif /* CONFIG_NET_IPv4 */
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/****************************************************************************
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* Name: tcp_ipv6_select
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*
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* Description:
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* Configure to send or receive an TCP IPv6 packet
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IPv6
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void tcp_ipv6_select(FAR struct net_driver_s *dev)
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{
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/* Set a bit in the d_flags to distinguish this from an IPv6 packet */
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IFF_SET_IPv6(dev->d_flags);
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/* Set the offset to the beginning of the TCP data payload */
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dev->d_appdata = IPBUF(IPv6TCP_HDRLEN);
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}
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#endif /* CONFIG_NET_IPv6 */
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/****************************************************************************
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* Name: tcp_ip_select
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*
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* Description:
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* Configure to send or receive an TCP IPv[4|6] packet for connection
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*
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****************************************************************************/
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void tcp_ip_select(FAR struct tcp_conn_s *conn)
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{
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#if defined(CONFIG_NET_IPv6) && defined(CONFIG_NET_IPv4)
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if (conn->domain == PF_INET)
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{
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tcp_ipv4_select(conn->dev);
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}
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else
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{
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tcp_ipv6_select(conn->dev);
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}
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#elif defined(CONFIG_NET_IPv4)
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tcp_ipv4_select(conn->dev);
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#else /* if defined(CONFIG_NET_IPv6) */
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tcp_ipv6_select(conn->dev);
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#endif
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}
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#endif /* CONFIG_NET */
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