lwip - Official mbed lwIP library (version 1.4.0)

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Official mbed lwIP library (version 1.4.0)

Dependents: LwIPNetworking NetServicesMin EthernetInterface EthernetInterface_RSF ... more

Legacy Networking Libraries

This is an mbed 2 networking library. For mbed OS 5, lwip has been integrated with built-in networking interfaces. The networking libraries have been revised to better support additional network stacks and thread safety here.

This library is based on the code of lwIP v1.4.0

Copyright (c) 2001, 2002 Swedish Institute of Computer Science.
All rights reserved. 

Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
   derived from this software without specific prior written permission. 

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
OF SUCH DAMAGE.

include/ipv4/lwip/icmp.h@0:51ac1d130fd4, 2012-06-22 (annotated)

Committer:: mbed_official
Date:: Fri Jun 22 09:25:39 2012 +0000
Revision:: 0:51ac1d130fd4

Initial import from lwip-1.4.0: http://download.savannah.gnu.org/releases/lwip/lwip-1.4.0.zip

Who changed what in which revision?

User	Revision	Line number	New contents of line
mbed_official	0:51ac1d130fd4	1	/*
mbed_official	0:51ac1d130fd4	2	* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
mbed_official	0:51ac1d130fd4	3	* All rights reserved.
mbed_official	0:51ac1d130fd4	4	*
mbed_official	0:51ac1d130fd4	5	* Redistribution and use in source and binary forms, with or without modification,
mbed_official	0:51ac1d130fd4	6	* are permitted provided that the following conditions are met:
mbed_official	0:51ac1d130fd4	7	*
mbed_official	0:51ac1d130fd4	8	* 1. Redistributions of source code must retain the above copyright notice,
mbed_official	0:51ac1d130fd4	9	* this list of conditions and the following disclaimer.
mbed_official	0:51ac1d130fd4	10	* 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official	0:51ac1d130fd4	11	* this list of conditions and the following disclaimer in the documentation
mbed_official	0:51ac1d130fd4	12	* and/or other materials provided with the distribution.
mbed_official	0:51ac1d130fd4	13	* 3. The name of the author may not be used to endorse or promote products
mbed_official	0:51ac1d130fd4	14	* derived from this software without specific prior written permission.
mbed_official	0:51ac1d130fd4	15	*
mbed_official	0:51ac1d130fd4	16	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
mbed_official	0:51ac1d130fd4	17	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
mbed_official	0:51ac1d130fd4	18	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
mbed_official	0:51ac1d130fd4	19	* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
mbed_official	0:51ac1d130fd4	20	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
mbed_official	0:51ac1d130fd4	21	* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mbed_official	0:51ac1d130fd4	22	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mbed_official	0:51ac1d130fd4	23	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
mbed_official	0:51ac1d130fd4	24	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
mbed_official	0:51ac1d130fd4	25	* OF SUCH DAMAGE.
mbed_official	0:51ac1d130fd4	26	*
mbed_official	0:51ac1d130fd4	27	* This file is part of the lwIP TCP/IP stack.
mbed_official	0:51ac1d130fd4	28	*
mbed_official	0:51ac1d130fd4	29	* Author: Adam Dunkels <adam@sics.se>
mbed_official	0:51ac1d130fd4	30	*
mbed_official	0:51ac1d130fd4	31	*/
mbed_official	0:51ac1d130fd4	32	#ifndef __LWIP_ICMP_H__
mbed_official	0:51ac1d130fd4	33	#define __LWIP_ICMP_H__
mbed_official	0:51ac1d130fd4	34
mbed_official	0:51ac1d130fd4	35	#include "lwip/opt.h"
mbed_official	0:51ac1d130fd4	36	#include "lwip/pbuf.h"
mbed_official	0:51ac1d130fd4	37	#include "lwip/ip_addr.h"
mbed_official	0:51ac1d130fd4	38	#include "lwip/netif.h"
mbed_official	0:51ac1d130fd4	39
mbed_official	0:51ac1d130fd4	40	#ifdef __cplusplus
mbed_official	0:51ac1d130fd4	41	extern "C" {
mbed_official	0:51ac1d130fd4	42	#endif
mbed_official	0:51ac1d130fd4	43
mbed_official	0:51ac1d130fd4	44	#define ICMP_ER 0 /* echo reply */
mbed_official	0:51ac1d130fd4	45	#define ICMP_DUR 3 /* destination unreachable */
mbed_official	0:51ac1d130fd4	46	#define ICMP_SQ 4 /* source quench */
mbed_official	0:51ac1d130fd4	47	#define ICMP_RD 5 /* redirect */
mbed_official	0:51ac1d130fd4	48	#define ICMP_ECHO 8 /* echo */
mbed_official	0:51ac1d130fd4	49	#define ICMP_TE 11 /* time exceeded */
mbed_official	0:51ac1d130fd4	50	#define ICMP_PP 12 /* parameter problem */
mbed_official	0:51ac1d130fd4	51	#define ICMP_TS 13 /* timestamp */
mbed_official	0:51ac1d130fd4	52	#define ICMP_TSR 14 /* timestamp reply */
mbed_official	0:51ac1d130fd4	53	#define ICMP_IRQ 15 /* information request */
mbed_official	0:51ac1d130fd4	54	#define ICMP_IR 16 /* information reply */
mbed_official	0:51ac1d130fd4	55
mbed_official	0:51ac1d130fd4	56	enum icmp_dur_type {
mbed_official	0:51ac1d130fd4	57	ICMP_DUR_NET = 0, /* net unreachable */
mbed_official	0:51ac1d130fd4	58	ICMP_DUR_HOST = 1, /* host unreachable */
mbed_official	0:51ac1d130fd4	59	ICMP_DUR_PROTO = 2, /* protocol unreachable */
mbed_official	0:51ac1d130fd4	60	ICMP_DUR_PORT = 3, /* port unreachable */
mbed_official	0:51ac1d130fd4	61	ICMP_DUR_FRAG = 4, /* fragmentation needed and DF set */
mbed_official	0:51ac1d130fd4	62	ICMP_DUR_SR = 5 /* source route failed */
mbed_official	0:51ac1d130fd4	63	};
mbed_official	0:51ac1d130fd4	64
mbed_official	0:51ac1d130fd4	65	enum icmp_te_type {
mbed_official	0:51ac1d130fd4	66	ICMP_TE_TTL = 0, /* time to live exceeded in transit */
mbed_official	0:51ac1d130fd4	67	ICMP_TE_FRAG = 1 /* fragment reassembly time exceeded */
mbed_official	0:51ac1d130fd4	68	};
mbed_official	0:51ac1d130fd4	69
mbed_official	0:51ac1d130fd4	70	#ifdef PACK_STRUCT_USE_INCLUDES
mbed_official	0:51ac1d130fd4	71	# include "arch/bpstruct.h"
mbed_official	0:51ac1d130fd4	72	#endif
mbed_official	0:51ac1d130fd4	73	/** This is the standard ICMP header only that the u32_t data
mbed_official	0:51ac1d130fd4	74	* is splitted to two u16_t like ICMP echo needs it.
mbed_official	0:51ac1d130fd4	75	* This header is also used for other ICMP types that do not
mbed_official	0:51ac1d130fd4	76	* use the data part.
mbed_official	0:51ac1d130fd4	77	*/
mbed_official	0:51ac1d130fd4	78	PACK_STRUCT_BEGIN
mbed_official	0:51ac1d130fd4	79	struct icmp_echo_hdr {
mbed_official	0:51ac1d130fd4	80	PACK_STRUCT_FIELD(u8_t type);
mbed_official	0:51ac1d130fd4	81	PACK_STRUCT_FIELD(u8_t code);
mbed_official	0:51ac1d130fd4	82	PACK_STRUCT_FIELD(u16_t chksum);
mbed_official	0:51ac1d130fd4	83	PACK_STRUCT_FIELD(u16_t id);
mbed_official	0:51ac1d130fd4	84	PACK_STRUCT_FIELD(u16_t seqno);
mbed_official	0:51ac1d130fd4	85	} PACK_STRUCT_STRUCT;
mbed_official	0:51ac1d130fd4	86	PACK_STRUCT_END
mbed_official	0:51ac1d130fd4	87	#ifdef PACK_STRUCT_USE_INCLUDES
mbed_official	0:51ac1d130fd4	88	# include "arch/epstruct.h"
mbed_official	0:51ac1d130fd4	89	#endif
mbed_official	0:51ac1d130fd4	90
mbed_official	0:51ac1d130fd4	91	#define ICMPH_TYPE(hdr) ((hdr)->type)
mbed_official	0:51ac1d130fd4	92	#define ICMPH_CODE(hdr) ((hdr)->code)
mbed_official	0:51ac1d130fd4	93
mbed_official	0:51ac1d130fd4	94	/** Combines type and code to an u16_t */
mbed_official	0:51ac1d130fd4	95	#define ICMPH_TYPE_SET(hdr, t) ((hdr)->type = (t))
mbed_official	0:51ac1d130fd4	96	#define ICMPH_CODE_SET(hdr, c) ((hdr)->code = (c))
mbed_official	0:51ac1d130fd4	97
mbed_official	0:51ac1d130fd4	98
mbed_official	0:51ac1d130fd4	99	#if LWIP_ICMP /* don't build if not configured for use in lwipopts.h */
mbed_official	0:51ac1d130fd4	100
mbed_official	0:51ac1d130fd4	101	void icmp_input(struct pbuf p, struct netif inp);
mbed_official	0:51ac1d130fd4	102	void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t);
mbed_official	0:51ac1d130fd4	103	void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t);
mbed_official	0:51ac1d130fd4	104
mbed_official	0:51ac1d130fd4	105	#endif /* LWIP_ICMP */
mbed_official	0:51ac1d130fd4	106
mbed_official	0:51ac1d130fd4	107	#ifdef __cplusplus
mbed_official	0:51ac1d130fd4	108	}
mbed_official	0:51ac1d130fd4	109	#endif
mbed_official	0:51ac1d130fd4	110
mbed_official	0:51ac1d130fd4	111	#endif /* __LWIP_ICMP_H__ */