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https://github.com/zephyrproject-rtos/zephyr
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6cf1da486d
Allow user to disable native IP stack and use offloaded IP stack instead. It is also possible to enable both at the same time if needed. Fixes #18105 Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
115 lines
2.9 KiB
C
115 lines
2.9 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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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __ICMPV4_H
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#define __ICMPV4_H
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#include <zephyr/types.h>
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#include <net/net_ip.h>
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#include <net/net_pkt.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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#define NET_ICMPV4_UNUSED_LEN 4
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struct net_icmpv4_echo_req {
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u16_t identifier;
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u16_t sequence;
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} __packed;
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typedef enum net_verdict (*icmpv4_callback_handler_t)(
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struct net_pkt *pkt,
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struct net_ipv4_hdr *ip_hdr,
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struct net_icmp_hdr *icmp_hdr);
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struct net_icmpv4_handler {
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sys_snode_t node;
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icmpv4_callback_handler_t handler;
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u8_t type;
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u8_t code;
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};
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/**
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* @brief Send ICMPv4 error message.
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* @param pkt Network packet 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_pkt *pkt, u8_t type, u8_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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* @param data Arbitrary payload data that will be included in the
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* Echo Reply verbatim. May be zero.
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* @param data_size Size of the Payload Data in bytes. 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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#if defined(CONFIG_NET_NATIVE_IPV4)
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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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u16_t identifier,
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u16_t sequence,
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const void *data,
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size_t data_size);
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#else
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static inline int net_icmpv4_send_echo_request(struct net_if *iface,
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struct in_addr *dst,
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u16_t identifier,
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u16_t sequence,
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const void *data,
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size_t data_size)
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{
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ARG_UNUSED(iface);
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ARG_UNUSED(dst);
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ARG_UNUSED(identifier);
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ARG_UNUSED(sequence);
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ARG_UNUSED(data);
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ARG_UNUSED(data_size);
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return -ENOTSUP;
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}
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#endif
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#if defined(CONFIG_NET_NATIVE_IPV4)
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void net_icmpv4_register_handler(struct net_icmpv4_handler *handler);
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void net_icmpv4_unregister_handler(struct net_icmpv4_handler *handler);
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enum net_verdict net_icmpv4_input(struct net_pkt *pkt,
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struct net_ipv4_hdr *ip_hdr);
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int net_icmpv4_finalize(struct net_pkt *pkt);
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void net_icmpv4_init(void);
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#else
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#define net_icmpv4_init(...)
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#define net_icmpv4_register_handler(...)
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#define net_icmpv4_unregister_handler(...)
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#endif
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#endif /* __ICMPV4_H */
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