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.

core/def.c@20:08f08bfc3f3d, 2016-03-14 (annotated)

Committer:: mbed_official
Date:: Mon Mar 14 16:15:36 2016 +0000
Revision:: 20:08f08bfc3f3d
Parent:: 0:51ac1d130fd4

Synchronized with git revision fec574a5ed6db26aca1b13992ff271bf527d4a0d

Full URL: https://github.com/mbedmicro/mbed/commit/fec574a5ed6db26aca1b13992ff271bf527d4a0d/

Increased allocated netbufs to handle DTLS handshakes

Who changed what in which revision?

User	Revision	Line number	New contents of line
mbed_official	0:51ac1d130fd4	1	/**
mbed_official	0:51ac1d130fd4	2	* @file
mbed_official	0:51ac1d130fd4	3	* Common functions used throughout the stack.
mbed_official	0:51ac1d130fd4	4	*
mbed_official	0:51ac1d130fd4	5	*/
mbed_official	0:51ac1d130fd4	6
mbed_official	0:51ac1d130fd4	7	/*
mbed_official	0:51ac1d130fd4	8	* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
mbed_official	0:51ac1d130fd4	9	* All rights reserved.
mbed_official	0:51ac1d130fd4	10	*
mbed_official	0:51ac1d130fd4	11	* Redistribution and use in source and binary forms, with or without modification,
mbed_official	0:51ac1d130fd4	12	* are permitted provided that the following conditions are met:
mbed_official	0:51ac1d130fd4	13	*
mbed_official	0:51ac1d130fd4	14	* 1. Redistributions of source code must retain the above copyright notice,
mbed_official	0:51ac1d130fd4	15	* this list of conditions and the following disclaimer.
mbed_official	0:51ac1d130fd4	16	* 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official	0:51ac1d130fd4	17	* this list of conditions and the following disclaimer in the documentation
mbed_official	0:51ac1d130fd4	18	* and/or other materials provided with the distribution.
mbed_official	0:51ac1d130fd4	19	* 3. The name of the author may not be used to endorse or promote products
mbed_official	0:51ac1d130fd4	20	* derived from this software without specific prior written permission.
mbed_official	0:51ac1d130fd4	21	*
mbed_official	0:51ac1d130fd4	22	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
mbed_official	0:51ac1d130fd4	23	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
mbed_official	0:51ac1d130fd4	24	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
mbed_official	0:51ac1d130fd4	25	* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
mbed_official	0:51ac1d130fd4	26	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
mbed_official	0:51ac1d130fd4	27	* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mbed_official	0:51ac1d130fd4	28	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mbed_official	0:51ac1d130fd4	29	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
mbed_official	0:51ac1d130fd4	30	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
mbed_official	0:51ac1d130fd4	31	* OF SUCH DAMAGE.
mbed_official	0:51ac1d130fd4	32	*
mbed_official	0:51ac1d130fd4	33	* This file is part of the lwIP TCP/IP stack.
mbed_official	0:51ac1d130fd4	34	*
mbed_official	0:51ac1d130fd4	35	* Author: Simon Goldschmidt
mbed_official	0:51ac1d130fd4	36	*
mbed_official	0:51ac1d130fd4	37	*/
mbed_official	0:51ac1d130fd4	38
mbed_official	0:51ac1d130fd4	39	#include "lwip/opt.h"
mbed_official	0:51ac1d130fd4	40	#include "lwip/def.h"
mbed_official	0:51ac1d130fd4	41
mbed_official	0:51ac1d130fd4	42	/**
mbed_official	0:51ac1d130fd4	43	* These are reference implementations of the byte swapping functions.
mbed_official	0:51ac1d130fd4	44	* Again with the aim of being simple, correct and fully portable.
mbed_official	0:51ac1d130fd4	45	* Byte swapping is the second thing you would want to optimize. You will
mbed_official	0:51ac1d130fd4	46	* need to port it to your architecture and in your cc.h:
mbed_official	0:51ac1d130fd4	47	*
mbed_official	0:51ac1d130fd4	48	* #define LWIP_PLATFORM_BYTESWAP 1
mbed_official	0:51ac1d130fd4	49	* #define LWIP_PLATFORM_HTONS(x) <your_htons>
mbed_official	0:51ac1d130fd4	50	* #define LWIP_PLATFORM_HTONL(x) <your_htonl>
mbed_official	0:51ac1d130fd4	51	*
mbed_official	0:51ac1d130fd4	52	* Note ntohs() and ntohl() are merely references to the htonx counterparts.
mbed_official	0:51ac1d130fd4	53	*/
mbed_official	0:51ac1d130fd4	54
mbed_official	0:51ac1d130fd4	55	#if (LWIP_PLATFORM_BYTESWAP == 0) && (BYTE_ORDER == LITTLE_ENDIAN)
mbed_official	0:51ac1d130fd4	56
mbed_official	0:51ac1d130fd4	57	/**
mbed_official	0:51ac1d130fd4	58	* Convert an u16_t from host- to network byte order.
mbed_official	0:51ac1d130fd4	59	*
mbed_official	0:51ac1d130fd4	60	* @param n u16_t in host byte order
mbed_official	0:51ac1d130fd4	61	* @return n in network byte order
mbed_official	0:51ac1d130fd4	62	*/
mbed_official	0:51ac1d130fd4	63	u16_t
mbed_official	0:51ac1d130fd4	64	lwip_htons(u16_t n)
mbed_official	0:51ac1d130fd4	65	{
mbed_official	0:51ac1d130fd4	66	return ((n & 0xff) << 8) \| ((n & 0xff00) >> 8);
mbed_official	0:51ac1d130fd4	67	}
mbed_official	0:51ac1d130fd4	68
mbed_official	0:51ac1d130fd4	69	/**
mbed_official	0:51ac1d130fd4	70	* Convert an u16_t from network- to host byte order.
mbed_official	0:51ac1d130fd4	71	*
mbed_official	0:51ac1d130fd4	72	* @param n u16_t in network byte order
mbed_official	0:51ac1d130fd4	73	* @return n in host byte order
mbed_official	0:51ac1d130fd4	74	*/
mbed_official	0:51ac1d130fd4	75	u16_t
mbed_official	0:51ac1d130fd4	76	lwip_ntohs(u16_t n)
mbed_official	0:51ac1d130fd4	77	{
mbed_official	0:51ac1d130fd4	78	return lwip_htons(n);
mbed_official	0:51ac1d130fd4	79	}
mbed_official	0:51ac1d130fd4	80
mbed_official	0:51ac1d130fd4	81	/**
mbed_official	0:51ac1d130fd4	82	* Convert an u32_t from host- to network byte order.
mbed_official	0:51ac1d130fd4	83	*
mbed_official	0:51ac1d130fd4	84	* @param n u32_t in host byte order
mbed_official	0:51ac1d130fd4	85	* @return n in network byte order
mbed_official	0:51ac1d130fd4	86	*/
mbed_official	0:51ac1d130fd4	87	u32_t
mbed_official	0:51ac1d130fd4	88	lwip_htonl(u32_t n)
mbed_official	0:51ac1d130fd4	89	{
mbed_official	0:51ac1d130fd4	90	return ((n & 0xff) << 24) \|
mbed_official	0:51ac1d130fd4	91	((n & 0xff00) << 8) \|
mbed_official	0:51ac1d130fd4	92	((n & 0xff0000UL) >> 8) \|
mbed_official	0:51ac1d130fd4	93	((n & 0xff000000UL) >> 24);
mbed_official	0:51ac1d130fd4	94	}
mbed_official	0:51ac1d130fd4	95
mbed_official	0:51ac1d130fd4	96	/**
mbed_official	0:51ac1d130fd4	97	* Convert an u32_t from network- to host byte order.
mbed_official	0:51ac1d130fd4	98	*
mbed_official	0:51ac1d130fd4	99	* @param n u32_t in network byte order
mbed_official	0:51ac1d130fd4	100	* @return n in host byte order
mbed_official	0:51ac1d130fd4	101	*/
mbed_official	0:51ac1d130fd4	102	u32_t
mbed_official	0:51ac1d130fd4	103	lwip_ntohl(u32_t n)
mbed_official	0:51ac1d130fd4	104	{
mbed_official	0:51ac1d130fd4	105	return lwip_htonl(n);
mbed_official	0:51ac1d130fd4	106	}
mbed_official	0:51ac1d130fd4	107
mbed_official	0:51ac1d130fd4	108	#endif /* (LWIP_PLATFORM_BYTESWAP == 0) && (BYTE_ORDER == LITTLE_ENDIAN) */