04c9079954
Because of this, it will take some time to detangle the licensing under net/. Many new features, original features were added to the NuttX network. Clearly, any references to Adam Dunkels in the files that implement these new features that have no counterpart in uIP 1.0 are errors. This PR removes the references and converts the license headers to Apache 2.0 where possible. The affected files include only (1) the implementation of IPv6 (including neighbor support under ICMPv6) and (2) Raw sockets. Neither of these features are present in uIP 1.0 and the licenses can be freely updated.
113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
/****************************************************************************
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* net/pkt/pkt_input.c
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* Handling incoming packet input
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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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#if defined(CONFIG_NET) && defined(CONFIG_NET_PKT)
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/net/netdev.h>
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#include <nuttx/net/pkt.h>
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#include "devif/devif.h"
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#include "pkt/pkt.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define PKTBUF ((FAR struct eth_hdr_s *)&dev->d_buf)
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: pkt_input
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*
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* Description:
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* Handle incoming packet input
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*
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* Input Parameters:
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* dev - The device driver structure containing the received packet
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*
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* Returned Value:
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* OK The packet has been processed and can be deleted
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* -EAGAIN There is a matching connection, but could not dispatch the packet
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* yet. Useful when a packet arrives before a recv call is in
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* place.
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*
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* Assumptions:
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* The network is locked.
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*
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****************************************************************************/
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int pkt_input(struct net_driver_s *dev)
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{
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FAR struct pkt_conn_s *conn;
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FAR struct eth_hdr_s *pbuf = (FAR struct eth_hdr_s *)dev->d_buf;
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int ret = OK;
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conn = pkt_active(pbuf);
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if (conn)
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{
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uint16_t flags;
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/* Setup for the application callback */
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dev->d_appdata = dev->d_buf;
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dev->d_sndlen = 0;
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/* Perform the application callback */
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flags = pkt_callback(dev, conn, PKT_NEWDATA);
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/* If the operation was successful, the PKT_NEWDATA flag is removed
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* and thus the packet can be deleted (OK will be returned).
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*/
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if ((flags & PKT_NEWDATA) != 0)
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{
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/* No.. the packet was not processed now. Return -EAGAIN so
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* that the driver may retry again later. We still need to
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* set d_len to zero so that the driver is aware that there
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* is nothing to be sent.
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*/
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nwarn("WARNING: Packet not processed\n");
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ret = -EAGAIN;
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}
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}
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else
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{
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ninfo("No PKT listener\n");
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}
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return ret;
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}
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#endif /* CONFIG_NET && CONFIG_NET_PKT */
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