Adam Green / EthernetInterface

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lwip/include/ipv4/lwip/icmp.h@0:3b00827bb0b7, 2013-09-07 (annotated)

Committer:
AdamGreen
Date:
Sat Sep 07 21:38:42 2013 +0000
Revision:
0:3b00827bb0b7
Sync to latest network stack source from github.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AdamGreen 0:3b00827bb0b7 1 /*
AdamGreen 0:3b00827bb0b7 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
AdamGreen 0:3b00827bb0b7 3 * All rights reserved.
AdamGreen 0:3b00827bb0b7 4 *
AdamGreen 0:3b00827bb0b7 5 * Redistribution and use in source and binary forms, with or without modification,
AdamGreen 0:3b00827bb0b7 6 * are permitted provided that the following conditions are met:
AdamGreen 0:3b00827bb0b7 7 *
AdamGreen 0:3b00827bb0b7 8 * 1. Redistributions of source code must retain the above copyright notice,
AdamGreen 0:3b00827bb0b7 9 * this list of conditions and the following disclaimer.
AdamGreen 0:3b00827bb0b7 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
AdamGreen 0:3b00827bb0b7 11 * this list of conditions and the following disclaimer in the documentation
AdamGreen 0:3b00827bb0b7 12 * and/or other materials provided with the distribution.
AdamGreen 0:3b00827bb0b7 13 * 3. The name of the author may not be used to endorse or promote products
AdamGreen 0:3b00827bb0b7 14 * derived from this software without specific prior written permission.
AdamGreen 0:3b00827bb0b7 15 *
AdamGreen 0:3b00827bb0b7 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
AdamGreen 0:3b00827bb0b7 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
AdamGreen 0:3b00827bb0b7 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
AdamGreen 0:3b00827bb0b7 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
AdamGreen 0:3b00827bb0b7 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
AdamGreen 0:3b00827bb0b7 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
AdamGreen 0:3b00827bb0b7 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
AdamGreen 0:3b00827bb0b7 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
AdamGreen 0:3b00827bb0b7 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
AdamGreen 0:3b00827bb0b7 25 * OF SUCH DAMAGE.
AdamGreen 0:3b00827bb0b7 26 *
AdamGreen 0:3b00827bb0b7 27 * This file is part of the lwIP TCP/IP stack.
AdamGreen 0:3b00827bb0b7 28 *
AdamGreen 0:3b00827bb0b7 29 * Author: Adam Dunkels <adam@sics.se>
AdamGreen 0:3b00827bb0b7 30 *
AdamGreen 0:3b00827bb0b7 31 */
AdamGreen 0:3b00827bb0b7 32 #ifndef __LWIP_ICMP_H__
AdamGreen 0:3b00827bb0b7 33 #define __LWIP_ICMP_H__
AdamGreen 0:3b00827bb0b7 34
AdamGreen 0:3b00827bb0b7 35 #include "lwip/opt.h"
AdamGreen 0:3b00827bb0b7 36 #include "lwip/pbuf.h"
AdamGreen 0:3b00827bb0b7 37 #include "lwip/ip_addr.h"
AdamGreen 0:3b00827bb0b7 38 #include "lwip/netif.h"
AdamGreen 0:3b00827bb0b7 39
AdamGreen 0:3b00827bb0b7 40 #ifdef __cplusplus
AdamGreen 0:3b00827bb0b7 41 extern "C" {
AdamGreen 0:3b00827bb0b7 42 #endif
AdamGreen 0:3b00827bb0b7 43
AdamGreen 0:3b00827bb0b7 44 #define ICMP_ER 0 /* echo reply */
AdamGreen 0:3b00827bb0b7 45 #define ICMP_DUR 3 /* destination unreachable */
AdamGreen 0:3b00827bb0b7 46 #define ICMP_SQ 4 /* source quench */
AdamGreen 0:3b00827bb0b7 47 #define ICMP_RD 5 /* redirect */
AdamGreen 0:3b00827bb0b7 48 #define ICMP_ECHO 8 /* echo */
AdamGreen 0:3b00827bb0b7 49 #define ICMP_TE 11 /* time exceeded */
AdamGreen 0:3b00827bb0b7 50 #define ICMP_PP 12 /* parameter problem */
AdamGreen 0:3b00827bb0b7 51 #define ICMP_TS 13 /* timestamp */
AdamGreen 0:3b00827bb0b7 52 #define ICMP_TSR 14 /* timestamp reply */
AdamGreen 0:3b00827bb0b7 53 #define ICMP_IRQ 15 /* information request */
AdamGreen 0:3b00827bb0b7 54 #define ICMP_IR 16 /* information reply */
AdamGreen 0:3b00827bb0b7 55
AdamGreen 0:3b00827bb0b7 56 enum icmp_dur_type {
AdamGreen 0:3b00827bb0b7 57 ICMP_DUR_NET = 0, /* net unreachable */
AdamGreen 0:3b00827bb0b7 58 ICMP_DUR_HOST = 1, /* host unreachable */
AdamGreen 0:3b00827bb0b7 59 ICMP_DUR_PROTO = 2, /* protocol unreachable */
AdamGreen 0:3b00827bb0b7 60 ICMP_DUR_PORT = 3, /* port unreachable */
AdamGreen 0:3b00827bb0b7 61 ICMP_DUR_FRAG = 4, /* fragmentation needed and DF set */
AdamGreen 0:3b00827bb0b7 62 ICMP_DUR_SR = 5 /* source route failed */
AdamGreen 0:3b00827bb0b7 63 };
AdamGreen 0:3b00827bb0b7 64
AdamGreen 0:3b00827bb0b7 65 enum icmp_te_type {
AdamGreen 0:3b00827bb0b7 66 ICMP_TE_TTL = 0, /* time to live exceeded in transit */
AdamGreen 0:3b00827bb0b7 67 ICMP_TE_FRAG = 1 /* fragment reassembly time exceeded */
AdamGreen 0:3b00827bb0b7 68 };
AdamGreen 0:3b00827bb0b7 69
AdamGreen 0:3b00827bb0b7 70 #ifdef PACK_STRUCT_USE_INCLUDES
AdamGreen 0:3b00827bb0b7 71 # include "arch/bpstruct.h"
AdamGreen 0:3b00827bb0b7 72 #endif
AdamGreen 0:3b00827bb0b7 73 /** This is the standard ICMP header only that the u32_t data
AdamGreen 0:3b00827bb0b7 74 * is splitted to two u16_t like ICMP echo needs it.
AdamGreen 0:3b00827bb0b7 75 * This header is also used for other ICMP types that do not
AdamGreen 0:3b00827bb0b7 76 * use the data part.
AdamGreen 0:3b00827bb0b7 77 */
AdamGreen 0:3b00827bb0b7 78 PACK_STRUCT_BEGIN
AdamGreen 0:3b00827bb0b7 79 struct icmp_echo_hdr {
AdamGreen 0:3b00827bb0b7 80 PACK_STRUCT_FIELD(u8_t type);
AdamGreen 0:3b00827bb0b7 81 PACK_STRUCT_FIELD(u8_t code);
AdamGreen 0:3b00827bb0b7 82 PACK_STRUCT_FIELD(u16_t chksum);
AdamGreen 0:3b00827bb0b7 83 PACK_STRUCT_FIELD(u16_t id);
AdamGreen 0:3b00827bb0b7 84 PACK_STRUCT_FIELD(u16_t seqno);
AdamGreen 0:3b00827bb0b7 85 } PACK_STRUCT_STRUCT;
AdamGreen 0:3b00827bb0b7 86 PACK_STRUCT_END
AdamGreen 0:3b00827bb0b7 87 #ifdef PACK_STRUCT_USE_INCLUDES
AdamGreen 0:3b00827bb0b7 88 # include "arch/epstruct.h"
AdamGreen 0:3b00827bb0b7 89 #endif
AdamGreen 0:3b00827bb0b7 90
AdamGreen 0:3b00827bb0b7 91 #define ICMPH_TYPE(hdr) ((hdr)->type)
AdamGreen 0:3b00827bb0b7 92 #define ICMPH_CODE(hdr) ((hdr)->code)
AdamGreen 0:3b00827bb0b7 93
AdamGreen 0:3b00827bb0b7 94 /** Combines type and code to an u16_t */
AdamGreen 0:3b00827bb0b7 95 #define ICMPH_TYPE_SET(hdr, t) ((hdr)->type = (t))
AdamGreen 0:3b00827bb0b7 96 #define ICMPH_CODE_SET(hdr, c) ((hdr)->code = (c))
AdamGreen 0:3b00827bb0b7 97
AdamGreen 0:3b00827bb0b7 98
AdamGreen 0:3b00827bb0b7 99 #if LWIP_ICMP /* don't build if not configured for use in lwipopts.h */
AdamGreen 0:3b00827bb0b7 100
AdamGreen 0:3b00827bb0b7 101 void icmp_input(struct pbuf *p, struct netif *inp);
AdamGreen 0:3b00827bb0b7 102 void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t);
AdamGreen 0:3b00827bb0b7 103 void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t);
AdamGreen 0:3b00827bb0b7 104
AdamGreen 0:3b00827bb0b7 105 #endif /* LWIP_ICMP */
AdamGreen 0:3b00827bb0b7 106
AdamGreen 0:3b00827bb0b7 107 #ifdef __cplusplus
AdamGreen 0:3b00827bb0b7 108 }
AdamGreen 0:3b00827bb0b7 109 #endif
AdamGreen 0:3b00827bb0b7 110
AdamGreen 0:3b00827bb0b7 111 #endif /* __LWIP_ICMP_H__ */