mirror of
https://github.com/zephyrproject-rtos/zephyr
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3eaec41ab8
* Moved networking code into subsys/net. * Renamed net/yaip to net/ip at the same time. * Fixed the tests/net to compile * Fixed the Makefiles and Kconfig files in subsys/net to use the new location of the IP stack Change-Id: Ie45d9e8cb45a93fefdf969b20a81e3b1d3c16355 Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
/** @file
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@brief ICMPv4 handler
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This is not to be included by the application.
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*/
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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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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#ifndef __ICMPV4_H
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#define __ICMPV4_H
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#include <stdint.h>
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#include <net/net_ip.h>
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#include <net/nbuf.h>
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#define NET_ICMPV4_DST_UNREACH 3 /* Destination unreachable */
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#define NET_ICMPV4_ECHO_REQUEST 8
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#define NET_ICMPV4_ECHO_REPLY 0
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#define NET_ICMPV4_DST_UNREACH_NO_PROTO 2 /* Protocol not supported */
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#define NET_ICMPV4_DST_UNREACH_NO_PORT 3 /* Port unreachable */
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struct net_icmpv4_echo_req {
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uint16_t identifier;
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uint16_t sequence;
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} __packed;
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#define NET_ICMPV4_ECHO_REQ_BUF(buf) \
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((struct net_icmpv4_echo_req *)(net_nbuf_icmp_data(buf) + \
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sizeof(struct net_icmp_hdr)))
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/**
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* @brief Send ICMPv4 error message.
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* @param buf Network buffer that this error is related to.
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* @param type Type of the error message.
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* @param code Code of the type of the error message.
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* @return Return 0 if the sending succeed, <0 otherwise.
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*/
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int net_icmpv4_send_error(struct net_buf *buf, uint8_t type, uint8_t code);
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/**
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* @brief Send ICMPv4 echo request message.
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*
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* @param iface Network interface.
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* @param dst IPv4 address of the target host.
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* @param identifier An identifier to aid in matching Echo Replies
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* to this Echo Request. May be zero.
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* @param sequence A sequence number to aid in matching Echo Replies
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* to this Echo Request. May be zero.
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*
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* @return Return 0 if the sending succeed, <0 otherwise.
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*/
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int net_icmpv4_send_echo_request(struct net_if *iface,
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struct in_addr *dst,
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uint16_t identifier,
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uint16_t sequence);
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enum net_verdict net_icmpv4_input(struct net_buf *buf, uint16_t len,
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uint8_t type, uint8_t code);
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#endif /* __ICMPV4_H */
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