e74c04fc9f
- icmp_responder: responds to ICMPv4 and ARP requests - loopback: connects two interfaces and sends a verification packet from master memif to slave memif where it is looped back - loopback (reverse path): reverses direction of packet in loopback application (slave memif to master memif) Type: refactor Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com> Change-Id: Ie90aaa3367269408efb6c5d538ad5aa827432238 Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
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*------------------------------------------------------------------
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* Copyright (c) 2020 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*------------------------------------------------------------------
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*/
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#include <common.h>
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#include <icmp_proto.h>
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/* reply with the same data */
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int
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basic_packet_handler (memif_connection_t *c)
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{
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int i;
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memif_buffer_t *dest, *src;
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/* in case of zero-copy the tx_buf_num will be zero, so the loop body won't
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* execute */
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for (i = 0; i < c->tx_buf_num; i++)
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{
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memcpy (c->tx_bufs[i].data, c->rx_bufs[i].data, c->rx_bufs[i].len);
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}
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return 0;
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}
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/* ICMPv4 and ARP handler */
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int
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icmp_packet_handler (memif_connection_t *c)
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{
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int i;
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memif_buffer_t *dest, *src;
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/* if tx_buf_num > 0 we use non-zero-copy mode */
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if (c->tx_buf_num > 0)
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{
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for (i = 0; i < c->tx_buf_num; i++)
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{
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resolve_packet (c->rx_bufs[i].data, c->rx_bufs[i].len,
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c->tx_bufs[i].data, &c->tx_bufs[i].len, c->ip_addr,
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c->hw_addr);
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}
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}
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else
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{
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for (i = 0; i < c->rx_buf_num; i++)
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{
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resolve_packet_zero_copy (c->rx_bufs[i].data, &c->rx_bufs[i].len,
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c->ip_addr, c->hw_addr);
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}
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}
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return 0;
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} |