1 /** @file 2 @brief ICMPv4 handler 3 4 This is not to be included by the application. 5 */ 6 7 /* 8 * Copyright (c) 2016 Intel Corporation 9 * 10 * SPDX-License-Identifier: Apache-2.0 11 */ 12 13 #ifndef __ICMPV4_H 14 #define __ICMPV4_H 15 16 #include <zephyr/types.h> 17 18 #include <zephyr/net/net_ip.h> 19 #include <zephyr/net/net_pkt.h> 20 21 #define NET_ICMPV4_DST_UNREACH 3 /* Destination unreachable */ 22 #define NET_ICMPV4_TIME_EXCEEDED 11 /* Time exceeded */ 23 #define NET_ICMPV4_BAD_IP_HEADER 12 /* Bad IP header */ 24 25 #define NET_ICMPV4_DST_UNREACH_NO_PROTO 2 /* Protocol not supported */ 26 #define NET_ICMPV4_DST_UNREACH_NO_PORT 3 /* Port unreachable */ 27 #define NET_ICMPV4_TIME_EXCEEDED_FRAGMENT_REASSEMBLY_TIME 1 /* Fragment reassembly time exceeded */ 28 #define NET_ICMPV4_BAD_IP_HEADER_LENGTH 2 /* Bad length field */ 29 30 #define NET_ICMPV4_UNUSED_LEN 4 31 32 struct net_icmpv4_echo_req { 33 uint16_t identifier; 34 uint16_t sequence; 35 } __packed; 36 37 struct net_icmpv4_dest_unreach { 38 uint16_t unused; 39 uint16_t mtu; 40 } __packed; 41 42 /** 43 * @brief Send ICMPv4 error message. 44 * @param pkt Network packet that this error is related to. 45 * @param type Type of the error message. 46 * @param code Code of the type of the error message. 47 * @return Return 0 if the sending succeed, <0 otherwise. 48 */ 49 int net_icmpv4_send_error(struct net_pkt *pkt, uint8_t type, uint8_t code); 50 51 #if defined(CONFIG_NET_NATIVE_IPV4) 52 enum net_verdict net_icmpv4_input(struct net_pkt *pkt, 53 struct net_ipv4_hdr *ip_hdr); 54 55 int net_icmpv4_create(struct net_pkt *pkt, uint8_t icmp_type, uint8_t icmp_code); 56 int net_icmpv4_finalize(struct net_pkt *pkt, bool force_chksum); 57 58 void net_icmpv4_init(void); 59 #else 60 #define net_icmpv4_init(...) 61 #endif 62 63 #endif /* __ICMPV4_H */ 64
