UIPEthernet - Fork for fixes

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utility/uip.h@3:5b17e4656dd0, 2014-12-20 (annotated)

Committer:: hudakz
Date:: Sat Dec 20 11:10:40 2014 +0000
Revision:: 3:5b17e4656dd0
Child:: 4:d774541a34da

02 Name clash with "Ethernet" fixed for LPC1768

Who changed what in which revision?

User	Revision	Line number	New contents of line
hudakz	3:5b17e4656dd0	1
hudakz	3:5b17e4656dd0	2	/**
hudakz	3:5b17e4656dd0	3	* \addtogroup uip
hudakz	3:5b17e4656dd0	4	* @{
hudakz	3:5b17e4656dd0	5	*/
hudakz	3:5b17e4656dd0	6
hudakz	3:5b17e4656dd0	7	/**
hudakz	3:5b17e4656dd0	8	* \file
hudakz	3:5b17e4656dd0	9	* Header file for the uIP TCP/IP stack.
hudakz	3:5b17e4656dd0	10	* \author Adam Dunkels <adam@dunkels.com>
hudakz	3:5b17e4656dd0	11	*
hudakz	3:5b17e4656dd0	12	* The uIP TCP/IP stack header file contains definitions for a number
hudakz	3:5b17e4656dd0	13	* of C macros that are used by uIP programs as well as internal uIP
hudakz	3:5b17e4656dd0	14	* structures, TCP/IP header structures and function declarations.
hudakz	3:5b17e4656dd0	15	*
hudakz	3:5b17e4656dd0	16	*/
hudakz	3:5b17e4656dd0	17	/*
hudakz	3:5b17e4656dd0	18	* Copyright (c) 2001-2003, Adam Dunkels.
hudakz	3:5b17e4656dd0	19	* All rights reserved.
hudakz	3:5b17e4656dd0	20	*
hudakz	3:5b17e4656dd0	21	* Redistribution and use in source and binary forms, with or without
hudakz	3:5b17e4656dd0	22	* modification, are permitted provided that the following conditions
hudakz	3:5b17e4656dd0	23	* are met:
hudakz	3:5b17e4656dd0	24	* 1. Redistributions of source code must retain the above copyright
hudakz	3:5b17e4656dd0	25	* notice, this list of conditions and the following disclaimer.
hudakz	3:5b17e4656dd0	26	* 2. Redistributions in binary form must reproduce the above copyright
hudakz	3:5b17e4656dd0	27	* notice, this list of conditions and the following disclaimer in the
hudakz	3:5b17e4656dd0	28	* documentation and/or other materials provided with the distribution.
hudakz	3:5b17e4656dd0	29	* 3. The name of the author may not be used to endorse or promote
hudakz	3:5b17e4656dd0	30	* products derived from this software without specific prior
hudakz	3:5b17e4656dd0	31	* written permission.
hudakz	3:5b17e4656dd0	32	*
hudakz	3:5b17e4656dd0	33	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
hudakz	3:5b17e4656dd0	34	* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
hudakz	3:5b17e4656dd0	35	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
hudakz	3:5b17e4656dd0	36	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
hudakz	3:5b17e4656dd0	37	* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
hudakz	3:5b17e4656dd0	38	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
hudakz	3:5b17e4656dd0	39	* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
hudakz	3:5b17e4656dd0	40	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
hudakz	3:5b17e4656dd0	41	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
hudakz	3:5b17e4656dd0	42	* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
hudakz	3:5b17e4656dd0	43	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
hudakz	3:5b17e4656dd0	44	*
hudakz	3:5b17e4656dd0	45	* This file is part of the uIP TCP/IP stack.
hudakz	3:5b17e4656dd0	46	*
hudakz	3:5b17e4656dd0	47	* $Id: uip.h,v 1.40 2006/06/08 07:12:07 adam Exp $
hudakz	3:5b17e4656dd0	48	*
hudakz	3:5b17e4656dd0	49	*/
hudakz	3:5b17e4656dd0	50	#ifndef __UIP_H__
hudakz	3:5b17e4656dd0	51	#define __UIP_H__
hudakz	3:5b17e4656dd0	52
hudakz	3:5b17e4656dd0	53	#include "uipopt.h"
hudakz	3:5b17e4656dd0	54
hudakz	3:5b17e4656dd0	55	/**
hudakz	3:5b17e4656dd0	56	* Repressentation of an IP address.
hudakz	3:5b17e4656dd0	57	*
hudakz	3:5b17e4656dd0	58	*/
hudakz	3:5b17e4656dd0	59
hudakz	3:5b17e4656dd0	60	typedef u16_t uip_ip4addr_t[2];
hudakz	3:5b17e4656dd0	61	typedef u16_t uip_ip6addr_t[8];
hudakz	3:5b17e4656dd0	62	#if UIP_CONF_IPV6
hudakz	3:5b17e4656dd0	63	typedef uip_ip6addr_t uip_ipaddr_t;
hudakz	3:5b17e4656dd0	64	#else /* UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	65
hudakz	3:5b17e4656dd0	66	typedef uip_ip4addr_t uip_ipaddr_t;
hudakz	3:5b17e4656dd0	67	#endif /* UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	68
hudakz	3:5b17e4656dd0	69	/---------------------------------------------------------------------------/
hudakz	3:5b17e4656dd0	70
hudakz	3:5b17e4656dd0	71	/* First, the functions that should be called from the
hudakz	3:5b17e4656dd0	72	* system. Initialization, the periodic timer and incoming packets are
hudakz	3:5b17e4656dd0	73	* handled by the following three functions.
hudakz	3:5b17e4656dd0	74	*/
hudakz	3:5b17e4656dd0	75	/**
hudakz	3:5b17e4656dd0	76	* \defgroup uipconffunc uIP configuration functions
hudakz	3:5b17e4656dd0	77	* @{
hudakz	3:5b17e4656dd0	78	*
hudakz	3:5b17e4656dd0	79	* The uIP configuration functions are used for setting run-time
hudakz	3:5b17e4656dd0	80	* parameters in uIP such as IP addresses.
hudakz	3:5b17e4656dd0	81	*/
hudakz	3:5b17e4656dd0	82
hudakz	3:5b17e4656dd0	83	/**
hudakz	3:5b17e4656dd0	84	* Set the IP address of this host.
hudakz	3:5b17e4656dd0	85	*
hudakz	3:5b17e4656dd0	86	* The IP address is represented as a 4-byte array where the first
hudakz	3:5b17e4656dd0	87	* octet of the IP address is put in the first member of the 4-byte
hudakz	3:5b17e4656dd0	88	* array.
hudakz	3:5b17e4656dd0	89	*
hudakz	3:5b17e4656dd0	90	* Example:
hudakz	3:5b17e4656dd0	91	\code
hudakz	3:5b17e4656dd0	92
hudakz	3:5b17e4656dd0	93	uip_ipaddr_t addr;
hudakz	3:5b17e4656dd0	94
hudakz	3:5b17e4656dd0	95	uip_ipaddr(&addr, 192,168,1,2);
hudakz	3:5b17e4656dd0	96	uip_sethostaddr(&addr);
hudakz	3:5b17e4656dd0	97
hudakz	3:5b17e4656dd0	98	\endcode
hudakz	3:5b17e4656dd0	99	* \param addr A pointer to an IP address of type uip_ipaddr_t;
hudakz	3:5b17e4656dd0	100	*
hudakz	3:5b17e4656dd0	101	* \sa uip_ipaddr()
hudakz	3:5b17e4656dd0	102	*
hudakz	3:5b17e4656dd0	103	* \hideinitializer
hudakz	3:5b17e4656dd0	104	*/
hudakz	3:5b17e4656dd0	105	#define uip_sethostaddr(addr) uip_ipaddr_copy(uip_hostaddr, (addr))
hudakz	3:5b17e4656dd0	106
hudakz	3:5b17e4656dd0	107	/**
hudakz	3:5b17e4656dd0	108	* Get the IP address of this host.
hudakz	3:5b17e4656dd0	109	*
hudakz	3:5b17e4656dd0	110	* The IP address is represented as a 4-byte array where the first
hudakz	3:5b17e4656dd0	111	* octet of the IP address is put in the first member of the 4-byte
hudakz	3:5b17e4656dd0	112	* array.
hudakz	3:5b17e4656dd0	113	*
hudakz	3:5b17e4656dd0	114	* Example:
hudakz	3:5b17e4656dd0	115	\code
hudakz	3:5b17e4656dd0	116	uip_ipaddr_t hostaddr;
hudakz	3:5b17e4656dd0	117
hudakz	3:5b17e4656dd0	118	uip_gethostaddr(&hostaddr);
hudakz	3:5b17e4656dd0	119	\endcode
hudakz	3:5b17e4656dd0	120	* \param addr A pointer to a uip_ipaddr_t variable that will be
hudakz	3:5b17e4656dd0	121	* filled in with the currently configured IP address.
hudakz	3:5b17e4656dd0	122	*
hudakz	3:5b17e4656dd0	123	* \hideinitializer
hudakz	3:5b17e4656dd0	124	*/
hudakz	3:5b17e4656dd0	125
hudakz	3:5b17e4656dd0	126	#define uip_gethostaddr(addr) uip_ipaddr_copy((addr), uip_hostaddr)
hudakz	3:5b17e4656dd0	127
hudakz	3:5b17e4656dd0	128	/**
hudakz	3:5b17e4656dd0	129	* Set the default router's IP address.
hudakz	3:5b17e4656dd0	130	*
hudakz	3:5b17e4656dd0	131	* \param addr A pointer to a uip_ipaddr_t variable containing the IP
hudakz	3:5b17e4656dd0	132	* address of the default router.
hudakz	3:5b17e4656dd0	133	*
hudakz	3:5b17e4656dd0	134	* \sa uip_ipaddr()
hudakz	3:5b17e4656dd0	135	*
hudakz	3:5b17e4656dd0	136	* \hideinitializer
hudakz	3:5b17e4656dd0	137	*/
hudakz	3:5b17e4656dd0	138
hudakz	3:5b17e4656dd0	139	#define uip_setdraddr(addr) uip_ipaddr_copy(uip_draddr, (addr))
hudakz	3:5b17e4656dd0	140
hudakz	3:5b17e4656dd0	141	/**
hudakz	3:5b17e4656dd0	142	* Set the netmask.
hudakz	3:5b17e4656dd0	143	*
hudakz	3:5b17e4656dd0	144	* \param addr A pointer to a uip_ipaddr_t variable containing the IP
hudakz	3:5b17e4656dd0	145	* address of the netmask.
hudakz	3:5b17e4656dd0	146	*
hudakz	3:5b17e4656dd0	147	* \sa uip_ipaddr()
hudakz	3:5b17e4656dd0	148	*
hudakz	3:5b17e4656dd0	149	* \hideinitializer
hudakz	3:5b17e4656dd0	150	*/
hudakz	3:5b17e4656dd0	151
hudakz	3:5b17e4656dd0	152	#define uip_setnetmask(addr) uip_ipaddr_copy(uip_netmask, (addr))
hudakz	3:5b17e4656dd0	153
hudakz	3:5b17e4656dd0	154	/**
hudakz	3:5b17e4656dd0	155	* Get the default router's IP address.
hudakz	3:5b17e4656dd0	156	*
hudakz	3:5b17e4656dd0	157	* \param addr A pointer to a uip_ipaddr_t variable that will be
hudakz	3:5b17e4656dd0	158	* filled in with the IP address of the default router.
hudakz	3:5b17e4656dd0	159	*
hudakz	3:5b17e4656dd0	160	* \hideinitializer
hudakz	3:5b17e4656dd0	161	*/
hudakz	3:5b17e4656dd0	162
hudakz	3:5b17e4656dd0	163	#define uip_getdraddr(addr) uip_ipaddr_copy((addr), uip_draddr)
hudakz	3:5b17e4656dd0	164
hudakz	3:5b17e4656dd0	165	/**
hudakz	3:5b17e4656dd0	166	* Get the netmask.
hudakz	3:5b17e4656dd0	167	*
hudakz	3:5b17e4656dd0	168	* \param addr A pointer to a uip_ipaddr_t variable that will be
hudakz	3:5b17e4656dd0	169	* filled in with the value of the netmask.
hudakz	3:5b17e4656dd0	170	*
hudakz	3:5b17e4656dd0	171	* \hideinitializer
hudakz	3:5b17e4656dd0	172	*/
hudakz	3:5b17e4656dd0	173
hudakz	3:5b17e4656dd0	174	#define uip_getnetmask(addr) uip_ipaddr_copy((addr), uip_netmask)
hudakz	3:5b17e4656dd0	175
hudakz	3:5b17e4656dd0	176	/** @} */
hudakz	3:5b17e4656dd0	177
hudakz	3:5b17e4656dd0	178	/**
hudakz	3:5b17e4656dd0	179	* \defgroup uipinit uIP initialization functions
hudakz	3:5b17e4656dd0	180	* @{
hudakz	3:5b17e4656dd0	181	*
hudakz	3:5b17e4656dd0	182	* The uIP initialization functions are used for booting uIP.
hudakz	3:5b17e4656dd0	183	*/
hudakz	3:5b17e4656dd0	184	/**
hudakz	3:5b17e4656dd0	185	* uIP initialization function.
hudakz	3:5b17e4656dd0	186	*
hudakz	3:5b17e4656dd0	187	* This function should be called at boot up to initilize the uIP
hudakz	3:5b17e4656dd0	188	* TCP/IP stack.
hudakz	3:5b17e4656dd0	189	*/
hudakz	3:5b17e4656dd0	190	void uip_init(void);
hudakz	3:5b17e4656dd0	191
hudakz	3:5b17e4656dd0	192	/**
hudakz	3:5b17e4656dd0	193	* uIP initialization function.
hudakz	3:5b17e4656dd0	194	*
hudakz	3:5b17e4656dd0	195	* This function may be used at boot time to set the initial ip_id.
hudakz	3:5b17e4656dd0	196	*/
hudakz	3:5b17e4656dd0	197	void uip_setipid(u16_t id);
hudakz	3:5b17e4656dd0	198
hudakz	3:5b17e4656dd0	199	/** @} */
hudakz	3:5b17e4656dd0	200
hudakz	3:5b17e4656dd0	201	/**
hudakz	3:5b17e4656dd0	202	* \defgroup uipdevfunc uIP device driver functions
hudakz	3:5b17e4656dd0	203	* @{
hudakz	3:5b17e4656dd0	204	*
hudakz	3:5b17e4656dd0	205	* These functions are used by a network device driver for interacting
hudakz	3:5b17e4656dd0	206	* with uIP.
hudakz	3:5b17e4656dd0	207	*/
hudakz	3:5b17e4656dd0	208
hudakz	3:5b17e4656dd0	209	/**
hudakz	3:5b17e4656dd0	210	* Process an incoming packet.
hudakz	3:5b17e4656dd0	211	*
hudakz	3:5b17e4656dd0	212	* This function should be called when the device driver has received
hudakz	3:5b17e4656dd0	213	* a packet from the network. The packet from the device driver must
hudakz	3:5b17e4656dd0	214	* be present in the uip_buf buffer, and the length of the packet
hudakz	3:5b17e4656dd0	215	* should be placed in the uip_len variable.
hudakz	3:5b17e4656dd0	216	*
hudakz	3:5b17e4656dd0	217	* When the function returns, there may be an outbound packet placed
hudakz	3:5b17e4656dd0	218	* in the uip_buf packet buffer. If so, the uip_len variable is set to
hudakz	3:5b17e4656dd0	219	* the length of the packet. If no packet is to be sent out, the
hudakz	3:5b17e4656dd0	220	* uip_len variable is set to 0.
hudakz	3:5b17e4656dd0	221	*
hudakz	3:5b17e4656dd0	222	* The usual way of calling the function is presented by the source
hudakz	3:5b17e4656dd0	223	* code below.
hudakz	3:5b17e4656dd0	224	\code
hudakz	3:5b17e4656dd0	225	uip_len = devicedriver_poll();
hudakz	3:5b17e4656dd0	226	if(uip_len > 0) {
hudakz	3:5b17e4656dd0	227	uip_input();
hudakz	3:5b17e4656dd0	228	if(uip_len > 0) {
hudakz	3:5b17e4656dd0	229	devicedriver_send();
hudakz	3:5b17e4656dd0	230	}
hudakz	3:5b17e4656dd0	231	}
hudakz	3:5b17e4656dd0	232	\endcode
hudakz	3:5b17e4656dd0	233	*
hudakz	3:5b17e4656dd0	234	* \note If you are writing a uIP device driver that needs ARP
hudakz	3:5b17e4656dd0	235	* (Address Resolution Protocol), e.g., when running uIP over
hudakz	3:5b17e4656dd0	236	* Ethernet, you will need to call the uIP ARP code before calling
hudakz	3:5b17e4656dd0	237	* this function:
hudakz	3:5b17e4656dd0	238	\code
hudakz	3:5b17e4656dd0	239	#define BUF ((struct uip_eth_hdr *)&uip_buf[0])
hudakz	3:5b17e4656dd0	240	uip_len = ethernet_devicedrver_poll();
hudakz	3:5b17e4656dd0	241	if(uip_len > 0) {
hudakz	3:5b17e4656dd0	242	if(BUF->type == HTONS(UIP_ETHTYPE_IP)) {
hudakz	3:5b17e4656dd0	243	uip_arp_ipin();
hudakz	3:5b17e4656dd0	244	uip_input();
hudakz	3:5b17e4656dd0	245	if(uip_len > 0) {
hudakz	3:5b17e4656dd0	246	uip_arp_out();
hudakz	3:5b17e4656dd0	247	ethernet_devicedriver_send();
hudakz	3:5b17e4656dd0	248	}
hudakz	3:5b17e4656dd0	249	} else if(BUF->type == HTONS(UIP_ETHTYPE_ARP)) {
hudakz	3:5b17e4656dd0	250	uip_arp_arpin();
hudakz	3:5b17e4656dd0	251	if(uip_len > 0) {
hudakz	3:5b17e4656dd0	252	ethernet_devicedriver_send();
hudakz	3:5b17e4656dd0	253	}
hudakz	3:5b17e4656dd0	254	}
hudakz	3:5b17e4656dd0	255	\endcode
hudakz	3:5b17e4656dd0	256	*
hudakz	3:5b17e4656dd0	257	* \hideinitializer
hudakz	3:5b17e4656dd0	258	*/
hudakz	3:5b17e4656dd0	259	#define uip_input() uip_process(UIP_DATA)
hudakz	3:5b17e4656dd0	260
hudakz	3:5b17e4656dd0	261	/**
hudakz	3:5b17e4656dd0	262	* Periodic processing for a connection identified by its number.
hudakz	3:5b17e4656dd0	263	*
hudakz	3:5b17e4656dd0	264	* This function does the necessary periodic processing (timers,
hudakz	3:5b17e4656dd0	265	* polling) for a uIP TCP conneciton, and should be called when the
hudakz	3:5b17e4656dd0	266	* periodic uIP timer goes off. It should be called for every
hudakz	3:5b17e4656dd0	267	* connection, regardless of whether they are open of closed.
hudakz	3:5b17e4656dd0	268	*
hudakz	3:5b17e4656dd0	269	* When the function returns, it may have an outbound packet waiting
hudakz	3:5b17e4656dd0	270	* for service in the uIP packet buffer, and if so the uip_len
hudakz	3:5b17e4656dd0	271	* variable is set to a value larger than zero. The device driver
hudakz	3:5b17e4656dd0	272	* should be called to send out the packet.
hudakz	3:5b17e4656dd0	273	*
hudakz	3:5b17e4656dd0	274	* The ususal way of calling the function is through a for() loop like
hudakz	3:5b17e4656dd0	275	* this:
hudakz	3:5b17e4656dd0	276	\code
hudakz	3:5b17e4656dd0	277	for(i = 0; i < UIP_CONNS; ++i) {
hudakz	3:5b17e4656dd0	278	uip_periodic(i);
hudakz	3:5b17e4656dd0	279	if(uip_len > 0) {
hudakz	3:5b17e4656dd0	280	devicedriver_send();
hudakz	3:5b17e4656dd0	281	}
hudakz	3:5b17e4656dd0	282	}
hudakz	3:5b17e4656dd0	283	\endcode
hudakz	3:5b17e4656dd0	284	*
hudakz	3:5b17e4656dd0	285	* \note If you are writing a uIP device driver that needs ARP
hudakz	3:5b17e4656dd0	286	* (Address Resolution Protocol), e.g., when running uIP over
hudakz	3:5b17e4656dd0	287	* Ethernet, you will need to call the uip_arp_out() function before
hudakz	3:5b17e4656dd0	288	* calling the device driver:
hudakz	3:5b17e4656dd0	289	\code
hudakz	3:5b17e4656dd0	290	for(i = 0; i < UIP_CONNS; ++i) {
hudakz	3:5b17e4656dd0	291	uip_periodic(i);
hudakz	3:5b17e4656dd0	292	if(uip_len > 0) {
hudakz	3:5b17e4656dd0	293	uip_arp_out();
hudakz	3:5b17e4656dd0	294	ethernet_devicedriver_send();
hudakz	3:5b17e4656dd0	295	}
hudakz	3:5b17e4656dd0	296	}
hudakz	3:5b17e4656dd0	297	\endcode
hudakz	3:5b17e4656dd0	298	*
hudakz	3:5b17e4656dd0	299	* \param conn The number of the connection which is to be periodically polled.
hudakz	3:5b17e4656dd0	300	*
hudakz	3:5b17e4656dd0	301	* \hideinitializer
hudakz	3:5b17e4656dd0	302	*/
hudakz	3:5b17e4656dd0	303
hudakz	3:5b17e4656dd0	304	#define uip_periodic(conn) \
hudakz	3:5b17e4656dd0	305	do \
hudakz	3:5b17e4656dd0	306	{ \
hudakz	3:5b17e4656dd0	307	uip_conn = &uip_conns[conn]; \
hudakz	3:5b17e4656dd0	308	uip_process(UIP_TIMER); \
hudakz	3:5b17e4656dd0	309	} while(0)
hudakz	3:5b17e4656dd0	310
hudakz	3:5b17e4656dd0	311	/**
hudakz	3:5b17e4656dd0	312	*
hudakz	3:5b17e4656dd0	313	*
hudakz	3:5b17e4656dd0	314	*/
hudakz	3:5b17e4656dd0	315
hudakz	3:5b17e4656dd0	316	#define uip_conn_active(conn) (uip_conns[conn].tcpstateflags != UIP_CLOSED)
hudakz	3:5b17e4656dd0	317
hudakz	3:5b17e4656dd0	318	/**
hudakz	3:5b17e4656dd0	319	* Perform periodic processing for a connection identified by a pointer
hudakz	3:5b17e4656dd0	320	* to its structure.
hudakz	3:5b17e4656dd0	321	*
hudakz	3:5b17e4656dd0	322	* Same as uip_periodic() but takes a pointer to the actual uip_conn
hudakz	3:5b17e4656dd0	323	* struct instead of an integer as its argument. This function can be
hudakz	3:5b17e4656dd0	324	* used to force periodic processing of a specific connection.
hudakz	3:5b17e4656dd0	325	*
hudakz	3:5b17e4656dd0	326	* \param conn A pointer to the uip_conn struct for the connection to
hudakz	3:5b17e4656dd0	327	* be processed.
hudakz	3:5b17e4656dd0	328	*
hudakz	3:5b17e4656dd0	329	* \hideinitializer
hudakz	3:5b17e4656dd0	330	*/
hudakz	3:5b17e4656dd0	331
hudakz	3:5b17e4656dd0	332	#define uip_periodic_conn(conn) \
hudakz	3:5b17e4656dd0	333	do \
hudakz	3:5b17e4656dd0	334	{ \
hudakz	3:5b17e4656dd0	335	uip_conn = conn; \
hudakz	3:5b17e4656dd0	336	uip_process(UIP_TIMER); \
hudakz	3:5b17e4656dd0	337	} while(0)
hudakz	3:5b17e4656dd0	338
hudakz	3:5b17e4656dd0	339	/**
hudakz	3:5b17e4656dd0	340	* Reuqest that a particular connection should be polled.
hudakz	3:5b17e4656dd0	341	*
hudakz	3:5b17e4656dd0	342	* Similar to uip_periodic_conn() but does not perform any timer
hudakz	3:5b17e4656dd0	343	* processing. The application is polled for new data.
hudakz	3:5b17e4656dd0	344	*
hudakz	3:5b17e4656dd0	345	* \param conn A pointer to the uip_conn struct for the connection to
hudakz	3:5b17e4656dd0	346	* be processed.
hudakz	3:5b17e4656dd0	347	*
hudakz	3:5b17e4656dd0	348	* \hideinitializer
hudakz	3:5b17e4656dd0	349	*/
hudakz	3:5b17e4656dd0	350
hudakz	3:5b17e4656dd0	351	#define uip_poll_conn(conn) \
hudakz	3:5b17e4656dd0	352	do \
hudakz	3:5b17e4656dd0	353	{ \
hudakz	3:5b17e4656dd0	354	uip_conn = conn; \
hudakz	3:5b17e4656dd0	355	uip_process(UIP_POLL_REQUEST); \
hudakz	3:5b17e4656dd0	356	} while(0)
hudakz	3:5b17e4656dd0	357	#if UIP_UDP
hudakz	3:5b17e4656dd0	358
hudakz	3:5b17e4656dd0	359	/**
hudakz	3:5b17e4656dd0	360	* Periodic processing for a UDP connection identified by its number.
hudakz	3:5b17e4656dd0	361	*
hudakz	3:5b17e4656dd0	362	* This function is essentially the same as uip_periodic(), but for
hudakz	3:5b17e4656dd0	363	* UDP connections. It is called in a similar fashion as the
hudakz	3:5b17e4656dd0	364	* uip_periodic() function:
hudakz	3:5b17e4656dd0	365	\code
hudakz	3:5b17e4656dd0	366	for(i = 0; i < UIP_UDP_CONNS; i++) {
hudakz	3:5b17e4656dd0	367	uip_udp_periodic(i);
hudakz	3:5b17e4656dd0	368	if(uip_len > 0) {
hudakz	3:5b17e4656dd0	369	devicedriver_send();
hudakz	3:5b17e4656dd0	370	}
hudakz	3:5b17e4656dd0	371	}
hudakz	3:5b17e4656dd0	372	\endcode
hudakz	3:5b17e4656dd0	373	*
hudakz	3:5b17e4656dd0	374	* \note As for the uip_periodic() function, special care has to be
hudakz	3:5b17e4656dd0	375	* taken when using uIP together with ARP and Ethernet:
hudakz	3:5b17e4656dd0	376	\code
hudakz	3:5b17e4656dd0	377	for(i = 0; i < UIP_UDP_CONNS; i++) {
hudakz	3:5b17e4656dd0	378	uip_udp_periodic(i);
hudakz	3:5b17e4656dd0	379	if(uip_len > 0) {
hudakz	3:5b17e4656dd0	380	uip_arp_out();
hudakz	3:5b17e4656dd0	381	ethernet_devicedriver_send();
hudakz	3:5b17e4656dd0	382	}
hudakz	3:5b17e4656dd0	383	}
hudakz	3:5b17e4656dd0	384	\endcode
hudakz	3:5b17e4656dd0	385	*
hudakz	3:5b17e4656dd0	386	* \param conn The number of the UDP connection to be processed.
hudakz	3:5b17e4656dd0	387	*
hudakz	3:5b17e4656dd0	388	* \hideinitializer
hudakz	3:5b17e4656dd0	389	*/
hudakz	3:5b17e4656dd0	390
hudakz	3:5b17e4656dd0	391	#define uip_udp_periodic(conn) \
hudakz	3:5b17e4656dd0	392	do \
hudakz	3:5b17e4656dd0	393	{ \
hudakz	3:5b17e4656dd0	394	uip_udp_conn = &uip_udp_conns[conn]; \
hudakz	3:5b17e4656dd0	395	uip_process(UIP_UDP_TIMER); \
hudakz	3:5b17e4656dd0	396	} while(0)
hudakz	3:5b17e4656dd0	397
hudakz	3:5b17e4656dd0	398	/**
hudakz	3:5b17e4656dd0	399	* Periodic processing for a UDP connection identified by a pointer to
hudakz	3:5b17e4656dd0	400	* its structure.
hudakz	3:5b17e4656dd0	401	*
hudakz	3:5b17e4656dd0	402	* Same as uip_udp_periodic() but takes a pointer to the actual
hudakz	3:5b17e4656dd0	403	* uip_conn struct instead of an integer as its argument. This
hudakz	3:5b17e4656dd0	404	* function can be used to force periodic processing of a specific
hudakz	3:5b17e4656dd0	405	* connection.
hudakz	3:5b17e4656dd0	406	*
hudakz	3:5b17e4656dd0	407	* \param conn A pointer to the uip_udp_conn struct for the connection
hudakz	3:5b17e4656dd0	408	* to be processed.
hudakz	3:5b17e4656dd0	409	*
hudakz	3:5b17e4656dd0	410	* \hideinitializer
hudakz	3:5b17e4656dd0	411	*/
hudakz	3:5b17e4656dd0	412
hudakz	3:5b17e4656dd0	413	#define uip_udp_periodic_conn(conn) \
hudakz	3:5b17e4656dd0	414	do \
hudakz	3:5b17e4656dd0	415	{ \
hudakz	3:5b17e4656dd0	416	uip_udp_conn = conn; \
hudakz	3:5b17e4656dd0	417	uip_process(UIP_UDP_TIMER); \
hudakz	3:5b17e4656dd0	418	} while(0)
hudakz	3:5b17e4656dd0	419	#endif /* UIP_UDP */
hudakz	3:5b17e4656dd0	420
hudakz	3:5b17e4656dd0	421	/**
hudakz	3:5b17e4656dd0	422	* The uIP packet buffer.
hudakz	3:5b17e4656dd0	423	*
hudakz	3:5b17e4656dd0	424	* The uip_buf array is used to hold incoming and outgoing
hudakz	3:5b17e4656dd0	425	* packets. The device driver should place incoming data into this
hudakz	3:5b17e4656dd0	426	* buffer. When sending data, the device driver should read the link
hudakz	3:5b17e4656dd0	427	* level headers and the TCP/IP headers from this buffer. The size of
hudakz	3:5b17e4656dd0	428	* the link level headers is configured by the UIP_LLH_LEN define.
hudakz	3:5b17e4656dd0	429	*
hudakz	3:5b17e4656dd0	430	* \note The application data need not be placed in this buffer, so
hudakz	3:5b17e4656dd0	431	* the device driver must read it from the place pointed to by the
hudakz	3:5b17e4656dd0	432	* uip_appdata pointer as illustrated by the following example:
hudakz	3:5b17e4656dd0	433	\code
hudakz	3:5b17e4656dd0	434	void
hudakz	3:5b17e4656dd0	435	devicedriver_send(void)
hudakz	3:5b17e4656dd0	436	{
hudakz	3:5b17e4656dd0	437	hwsend(&uip_buf[0], UIP_LLH_LEN);
hudakz	3:5b17e4656dd0	438	if(uip_len <= UIP_LLH_LEN + UIP_TCPIP_HLEN) {
hudakz	3:5b17e4656dd0	439	hwsend(&uip_buf[UIP_LLH_LEN], uip_len - UIP_LLH_LEN);
hudakz	3:5b17e4656dd0	440	} else {
hudakz	3:5b17e4656dd0	441	hwsend(&uip_buf[UIP_LLH_LEN], UIP_TCPIP_HLEN);
hudakz	3:5b17e4656dd0	442	hwsend(uip_appdata, uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN);
hudakz	3:5b17e4656dd0	443	}
hudakz	3:5b17e4656dd0	444	}
hudakz	3:5b17e4656dd0	445	\endcode
hudakz	3:5b17e4656dd0	446	*/
hudakz	3:5b17e4656dd0	447	extern u8_t uip_buf[UIP_BUFSIZE + 2];
hudakz	3:5b17e4656dd0	448
hudakz	3:5b17e4656dd0	449	/** @} */
hudakz	3:5b17e4656dd0	450
hudakz	3:5b17e4656dd0	451	/---------------------------------------------------------------------------/
hudakz	3:5b17e4656dd0	452	/* Functions that are used by the uIP application program. Opening and
hudakz	3:5b17e4656dd0	453	* closing connections, sending and receiving data, etc. is all
hudakz	3:5b17e4656dd0	454	* handled by the functions below.
hudakz	3:5b17e4656dd0	455	*/
hudakz	3:5b17e4656dd0	456	/**
hudakz	3:5b17e4656dd0	457	* \defgroup uipappfunc uIP application functions
hudakz	3:5b17e4656dd0	458	* @{
hudakz	3:5b17e4656dd0	459	*
hudakz	3:5b17e4656dd0	460	* Functions used by an application running of top of uIP.
hudakz	3:5b17e4656dd0	461	*/
hudakz	3:5b17e4656dd0	462	/**
hudakz	3:5b17e4656dd0	463	* Start listening to the specified port.
hudakz	3:5b17e4656dd0	464	*
hudakz	3:5b17e4656dd0	465	* \note Since this function expects the port number in network byte
hudakz	3:5b17e4656dd0	466	* order, a conversion using HTONS() or htons() is necessary.
hudakz	3:5b17e4656dd0	467	*
hudakz	3:5b17e4656dd0	468	\code
hudakz	3:5b17e4656dd0	469	uip_listen(HTONS(80));
hudakz	3:5b17e4656dd0	470	\endcode
hudakz	3:5b17e4656dd0	471	*
hudakz	3:5b17e4656dd0	472	* \param port A 16-bit port number in network byte order.
hudakz	3:5b17e4656dd0	473	*/
hudakz	3:5b17e4656dd0	474	void uip_listen(u16_t port);
hudakz	3:5b17e4656dd0	475
hudakz	3:5b17e4656dd0	476	/**
hudakz	3:5b17e4656dd0	477	* Stop listening to the specified port.
hudakz	3:5b17e4656dd0	478	*
hudakz	3:5b17e4656dd0	479	* \note Since this function expects the port number in network byte
hudakz	3:5b17e4656dd0	480	* order, a conversion using HTONS() or htons() is necessary.
hudakz	3:5b17e4656dd0	481	*
hudakz	3:5b17e4656dd0	482	\code
hudakz	3:5b17e4656dd0	483	uip_unlisten(HTONS(80));
hudakz	3:5b17e4656dd0	484	\endcode
hudakz	3:5b17e4656dd0	485	*
hudakz	3:5b17e4656dd0	486	* \param port A 16-bit port number in network byte order.
hudakz	3:5b17e4656dd0	487	*/
hudakz	3:5b17e4656dd0	488	void uip_unlisten(u16_t port);
hudakz	3:5b17e4656dd0	489
hudakz	3:5b17e4656dd0	490	/**
hudakz	3:5b17e4656dd0	491	* Connect to a remote host using TCP.
hudakz	3:5b17e4656dd0	492	*
hudakz	3:5b17e4656dd0	493	* This function is used to start a new connection to the specified
hudakz	3:5b17e4656dd0	494	* port on the specied host. It allocates a new connection identifier,
hudakz	3:5b17e4656dd0	495	* sets the connection to the SYN_SENT state and sets the
hudakz	3:5b17e4656dd0	496	* retransmission timer to 0. This will cause a TCP SYN segment to be
hudakz	3:5b17e4656dd0	497	* sent out the next time this connection is periodically processed,
hudakz	3:5b17e4656dd0	498	* which usually is done within 0.5 seconds after the call to
hudakz	3:5b17e4656dd0	499	* uip_connect().
hudakz	3:5b17e4656dd0	500	*
hudakz	3:5b17e4656dd0	501	* \note This function is avaliable only if support for active open
hudakz	3:5b17e4656dd0	502	* has been configured by defining UIP_ACTIVE_OPEN to 1 in uipopt.h.
hudakz	3:5b17e4656dd0	503	*
hudakz	3:5b17e4656dd0	504	* \note Since this function requires the port number to be in network
hudakz	3:5b17e4656dd0	505	* byte order, a conversion using HTONS() or htons() is necessary.
hudakz	3:5b17e4656dd0	506	*
hudakz	3:5b17e4656dd0	507	\code
hudakz	3:5b17e4656dd0	508	uip_ipaddr_t ipaddr;
hudakz	3:5b17e4656dd0	509
hudakz	3:5b17e4656dd0	510	uip_ipaddr(&ipaddr, 192,168,1,2);
hudakz	3:5b17e4656dd0	511	uip_connect(&ipaddr, HTONS(80));
hudakz	3:5b17e4656dd0	512	\endcode
hudakz	3:5b17e4656dd0	513	*
hudakz	3:5b17e4656dd0	514	* \param ripaddr The IP address of the remote hot.
hudakz	3:5b17e4656dd0	515	*
hudakz	3:5b17e4656dd0	516	* \param port A 16-bit port number in network byte order.
hudakz	3:5b17e4656dd0	517	*
hudakz	3:5b17e4656dd0	518	* \return A pointer to the uIP connection identifier for the new connection,
hudakz	3:5b17e4656dd0	519	* or NULL if no connection could be allocated.
hudakz	3:5b17e4656dd0	520	*
hudakz	3:5b17e4656dd0	521	*/
hudakz	3:5b17e4656dd0	522	struct uip_conn* uip_connect(uip_ipaddr_t* ripaddr, u16_t port);
hudakz	3:5b17e4656dd0	523
hudakz	3:5b17e4656dd0	524	/**
hudakz	3:5b17e4656dd0	525	* \internal
hudakz	3:5b17e4656dd0	526	*
hudakz	3:5b17e4656dd0	527	* Check if a connection has outstanding (i.e., unacknowledged) data.
hudakz	3:5b17e4656dd0	528	*
hudakz	3:5b17e4656dd0	529	* \param conn A pointer to the uip_conn structure for the connection.
hudakz	3:5b17e4656dd0	530	*
hudakz	3:5b17e4656dd0	531	* \hideinitializer
hudakz	3:5b17e4656dd0	532	*/
hudakz	3:5b17e4656dd0	533
hudakz	3:5b17e4656dd0	534	#define uip_outstanding(conn) ((conn)->len)
hudakz	3:5b17e4656dd0	535
hudakz	3:5b17e4656dd0	536	/**
hudakz	3:5b17e4656dd0	537	* Send data on the current connection.
hudakz	3:5b17e4656dd0	538	*
hudakz	3:5b17e4656dd0	539	* This function is used to send out a single segment of TCP
hudakz	3:5b17e4656dd0	540	* data. Only applications that have been invoked by uIP for event
hudakz	3:5b17e4656dd0	541	* processing can send data.
hudakz	3:5b17e4656dd0	542	*
hudakz	3:5b17e4656dd0	543	* The amount of data that actually is sent out after a call to this
hudakz	3:5b17e4656dd0	544	* funcion is determined by the maximum amount of data TCP allows. uIP
hudakz	3:5b17e4656dd0	545	* will automatically crop the data so that only the appropriate
hudakz	3:5b17e4656dd0	546	* amount of data is sent. The function uip_mss() can be used to query
hudakz	3:5b17e4656dd0	547	* uIP for the amount of data that actually will be sent.
hudakz	3:5b17e4656dd0	548	*
hudakz	3:5b17e4656dd0	549	* \note This function does not guarantee that the sent data will
hudakz	3:5b17e4656dd0	550	* arrive at the destination. If the data is lost in the network, the
hudakz	3:5b17e4656dd0	551	* application will be invoked with the uip_rexmit() event being
hudakz	3:5b17e4656dd0	552	* set. The application will then have to resend the data using this
hudakz	3:5b17e4656dd0	553	* function.
hudakz	3:5b17e4656dd0	554	*
hudakz	3:5b17e4656dd0	555	* \param data A pointer to the data which is to be sent.
hudakz	3:5b17e4656dd0	556	*
hudakz	3:5b17e4656dd0	557	* \param len The maximum amount of data bytes to be sent.
hudakz	3:5b17e4656dd0	558	*
hudakz	3:5b17e4656dd0	559	* \hideinitializer
hudakz	3:5b17e4656dd0	560	*/
hudakz	3:5b17e4656dd0	561	void uip_send(const void* data, int len);
hudakz	3:5b17e4656dd0	562
hudakz	3:5b17e4656dd0	563	/**
hudakz	3:5b17e4656dd0	564	* The length of any incoming data that is currently avaliable (if avaliable)
hudakz	3:5b17e4656dd0	565	* in the uip_appdata buffer.
hudakz	3:5b17e4656dd0	566	*
hudakz	3:5b17e4656dd0	567	* The test function uip_data() must first be used to check if there
hudakz	3:5b17e4656dd0	568	* is any data available at all.
hudakz	3:5b17e4656dd0	569	*
hudakz	3:5b17e4656dd0	570	* \hideinitializer
hudakz	3:5b17e4656dd0	571	*/
hudakz	3:5b17e4656dd0	572
hudakz	3:5b17e4656dd0	573	/void uip_datalen(void);/
hudakz	3:5b17e4656dd0	574	#define uip_datalen() uip_len
hudakz	3:5b17e4656dd0	575
hudakz	3:5b17e4656dd0	576	/**
hudakz	3:5b17e4656dd0	577	* The length of any out-of-band data (urgent data) that has arrived
hudakz	3:5b17e4656dd0	578	* on the connection.
hudakz	3:5b17e4656dd0	579	*
hudakz	3:5b17e4656dd0	580	* \note The configuration parameter UIP_URGDATA must be set for this
hudakz	3:5b17e4656dd0	581	* function to be enabled.
hudakz	3:5b17e4656dd0	582	*
hudakz	3:5b17e4656dd0	583	* \hideinitializer
hudakz	3:5b17e4656dd0	584	*/
hudakz	3:5b17e4656dd0	585
hudakz	3:5b17e4656dd0	586	#define uip_urgdatalen() uip_urglen
hudakz	3:5b17e4656dd0	587
hudakz	3:5b17e4656dd0	588	/**
hudakz	3:5b17e4656dd0	589	* Close the current connection.
hudakz	3:5b17e4656dd0	590	*
hudakz	3:5b17e4656dd0	591	* This function will close the current connection in a nice way.
hudakz	3:5b17e4656dd0	592	*
hudakz	3:5b17e4656dd0	593	* \hideinitializer
hudakz	3:5b17e4656dd0	594	*/
hudakz	3:5b17e4656dd0	595
hudakz	3:5b17e4656dd0	596	#define uip_close() (uip_flags = UIP_CLOSE)
hudakz	3:5b17e4656dd0	597
hudakz	3:5b17e4656dd0	598	/**
hudakz	3:5b17e4656dd0	599	* Abort the current connection.
hudakz	3:5b17e4656dd0	600	*
hudakz	3:5b17e4656dd0	601	* This function will abort (reset) the current connection, and is
hudakz	3:5b17e4656dd0	602	* usually used when an error has occured that prevents using the
hudakz	3:5b17e4656dd0	603	* uip_close() function.
hudakz	3:5b17e4656dd0	604	*
hudakz	3:5b17e4656dd0	605	* \hideinitializer
hudakz	3:5b17e4656dd0	606	*/
hudakz	3:5b17e4656dd0	607
hudakz	3:5b17e4656dd0	608	#define uip_abort() (uip_flags = UIP_ABORT)
hudakz	3:5b17e4656dd0	609
hudakz	3:5b17e4656dd0	610	/**
hudakz	3:5b17e4656dd0	611	* Tell the sending host to stop sending data.
hudakz	3:5b17e4656dd0	612	*
hudakz	3:5b17e4656dd0	613	* This function will close our receiver's window so that we stop
hudakz	3:5b17e4656dd0	614	* receiving data for the current connection.
hudakz	3:5b17e4656dd0	615	*
hudakz	3:5b17e4656dd0	616	* \hideinitializer
hudakz	3:5b17e4656dd0	617	*/
hudakz	3:5b17e4656dd0	618
hudakz	3:5b17e4656dd0	619	#define uip_stop() (uip_conn->tcpstateflags \|= UIP_STOPPED)
hudakz	3:5b17e4656dd0	620
hudakz	3:5b17e4656dd0	621	/**
hudakz	3:5b17e4656dd0	622	* Find out if the current connection has been previously stopped with
hudakz	3:5b17e4656dd0	623	* uip_stop().
hudakz	3:5b17e4656dd0	624	*
hudakz	3:5b17e4656dd0	625	* \hideinitializer
hudakz	3:5b17e4656dd0	626	*/
hudakz	3:5b17e4656dd0	627
hudakz	3:5b17e4656dd0	628	#define uip_stopped(conn) ((conn)->tcpstateflags & UIP_STOPPED)
hudakz	3:5b17e4656dd0	629
hudakz	3:5b17e4656dd0	630	/**
hudakz	3:5b17e4656dd0	631	* Restart the current connection, if is has previously been stopped
hudakz	3:5b17e4656dd0	632	* with uip_stop().
hudakz	3:5b17e4656dd0	633	*
hudakz	3:5b17e4656dd0	634	* This function will open the receiver's window again so that we
hudakz	3:5b17e4656dd0	635	* start receiving data for the current connection.
hudakz	3:5b17e4656dd0	636	*
hudakz	3:5b17e4656dd0	637	* \hideinitializer
hudakz	3:5b17e4656dd0	638	*/
hudakz	3:5b17e4656dd0	639
hudakz	3:5b17e4656dd0	640	#define uip_restart() \
hudakz	3:5b17e4656dd0	641	do \
hudakz	3:5b17e4656dd0	642	{ \
hudakz	3:5b17e4656dd0	643	uip_flags \|= UIP_NEWDATA; \
hudakz	3:5b17e4656dd0	644	uip_conn->tcpstateflags &= ~UIP_STOPPED; \
hudakz	3:5b17e4656dd0	645	} while(0)
hudakz	3:5b17e4656dd0	646
hudakz	3:5b17e4656dd0	647	/* uIP tests that can be made to determine in what state the current
hudakz	3:5b17e4656dd0	648	connection is, and what the application function should do. */
hudakz	3:5b17e4656dd0	649
hudakz	3:5b17e4656dd0	650	/**
hudakz	3:5b17e4656dd0	651	* Is the current connection a UDP connection?
hudakz	3:5b17e4656dd0	652	*
hudakz	3:5b17e4656dd0	653	* This function checks whether the current connection is a UDP connection.
hudakz	3:5b17e4656dd0	654	*
hudakz	3:5b17e4656dd0	655	* \hideinitializer
hudakz	3:5b17e4656dd0	656	*
hudakz	3:5b17e4656dd0	657	*/
hudakz	3:5b17e4656dd0	658	#define uip_udpconnection() (uip_conn == NULL)
hudakz	3:5b17e4656dd0	659
hudakz	3:5b17e4656dd0	660	/**
hudakz	3:5b17e4656dd0	661	* Is new incoming data available?
hudakz	3:5b17e4656dd0	662	*
hudakz	3:5b17e4656dd0	663	* Will reduce to non-zero if there is new data for the application
hudakz	3:5b17e4656dd0	664	* present at the uip_appdata pointer. The size of the data is
hudakz	3:5b17e4656dd0	665	* avaliable through the uip_len variable.
hudakz	3:5b17e4656dd0	666	*
hudakz	3:5b17e4656dd0	667	* \hideinitializer
hudakz	3:5b17e4656dd0	668	*/
hudakz	3:5b17e4656dd0	669
hudakz	3:5b17e4656dd0	670	#define uip_newdata() (uip_flags & UIP_NEWDATA)
hudakz	3:5b17e4656dd0	671
hudakz	3:5b17e4656dd0	672	/**
hudakz	3:5b17e4656dd0	673	* Has previously sent data been acknowledged?
hudakz	3:5b17e4656dd0	674	*
hudakz	3:5b17e4656dd0	675	* Will reduce to non-zero if the previously sent data has been
hudakz	3:5b17e4656dd0	676	* acknowledged by the remote host. This means that the application
hudakz	3:5b17e4656dd0	677	* can send new data.
hudakz	3:5b17e4656dd0	678	*
hudakz	3:5b17e4656dd0	679	* \hideinitializer
hudakz	3:5b17e4656dd0	680	*/
hudakz	3:5b17e4656dd0	681
hudakz	3:5b17e4656dd0	682	#define uip_acked() (uip_flags & UIP_ACKDATA)
hudakz	3:5b17e4656dd0	683
hudakz	3:5b17e4656dd0	684	/**
hudakz	3:5b17e4656dd0	685	* Has the connection just been connected?
hudakz	3:5b17e4656dd0	686	*
hudakz	3:5b17e4656dd0	687	* Reduces to non-zero if the current connection has been connected to
hudakz	3:5b17e4656dd0	688	* a remote host. This will happen both if the connection has been
hudakz	3:5b17e4656dd0	689	* actively opened (with uip_connect()) or passively opened (with
hudakz	3:5b17e4656dd0	690	* uip_listen()).
hudakz	3:5b17e4656dd0	691	*
hudakz	3:5b17e4656dd0	692	* \hideinitializer
hudakz	3:5b17e4656dd0	693	*/
hudakz	3:5b17e4656dd0	694
hudakz	3:5b17e4656dd0	695	#define uip_connected() (uip_flags & UIP_CONNECTED)
hudakz	3:5b17e4656dd0	696
hudakz	3:5b17e4656dd0	697	/**
hudakz	3:5b17e4656dd0	698	* Has the connection been closed by the other end?
hudakz	3:5b17e4656dd0	699	*
hudakz	3:5b17e4656dd0	700	* Is non-zero if the connection has been closed by the remote
hudakz	3:5b17e4656dd0	701	* host. The application may then do the necessary clean-ups.
hudakz	3:5b17e4656dd0	702	*
hudakz	3:5b17e4656dd0	703	* \hideinitializer
hudakz	3:5b17e4656dd0	704	*/
hudakz	3:5b17e4656dd0	705
hudakz	3:5b17e4656dd0	706	#define uip_closed() (uip_flags & UIP_CLOSE)
hudakz	3:5b17e4656dd0	707
hudakz	3:5b17e4656dd0	708	/**
hudakz	3:5b17e4656dd0	709	* Has the connection been aborted by the other end?
hudakz	3:5b17e4656dd0	710	*
hudakz	3:5b17e4656dd0	711	* Non-zero if the current connection has been aborted (reset) by the
hudakz	3:5b17e4656dd0	712	* remote host.
hudakz	3:5b17e4656dd0	713	*
hudakz	3:5b17e4656dd0	714	* \hideinitializer
hudakz	3:5b17e4656dd0	715	*/
hudakz	3:5b17e4656dd0	716
hudakz	3:5b17e4656dd0	717	#define uip_aborted() (uip_flags & UIP_ABORT)
hudakz	3:5b17e4656dd0	718
hudakz	3:5b17e4656dd0	719	/**
hudakz	3:5b17e4656dd0	720	* Has the connection timed out?
hudakz	3:5b17e4656dd0	721	*
hudakz	3:5b17e4656dd0	722	* Non-zero if the current connection has been aborted due to too many
hudakz	3:5b17e4656dd0	723	* retransmissions.
hudakz	3:5b17e4656dd0	724	*
hudakz	3:5b17e4656dd0	725	* \hideinitializer
hudakz	3:5b17e4656dd0	726	*/
hudakz	3:5b17e4656dd0	727
hudakz	3:5b17e4656dd0	728	#define uip_timedout() (uip_flags & UIP_TIMEDOUT)
hudakz	3:5b17e4656dd0	729
hudakz	3:5b17e4656dd0	730	/**
hudakz	3:5b17e4656dd0	731	* Do we need to retransmit previously data?
hudakz	3:5b17e4656dd0	732	*
hudakz	3:5b17e4656dd0	733	* Reduces to non-zero if the previously sent data has been lost in
hudakz	3:5b17e4656dd0	734	* the network, and the application should retransmit it. The
hudakz	3:5b17e4656dd0	735	* application should send the exact same data as it did the last
hudakz	3:5b17e4656dd0	736	* time, using the uip_send() function.
hudakz	3:5b17e4656dd0	737	*
hudakz	3:5b17e4656dd0	738	* \hideinitializer
hudakz	3:5b17e4656dd0	739	*/
hudakz	3:5b17e4656dd0	740
hudakz	3:5b17e4656dd0	741	#define uip_rexmit() (uip_flags & UIP_REXMIT)
hudakz	3:5b17e4656dd0	742
hudakz	3:5b17e4656dd0	743	/**
hudakz	3:5b17e4656dd0	744	* Is the connection being polled by uIP?
hudakz	3:5b17e4656dd0	745	*
hudakz	3:5b17e4656dd0	746	* Is non-zero if the reason the application is invoked is that the
hudakz	3:5b17e4656dd0	747	* current connection has been idle for a while and should be
hudakz	3:5b17e4656dd0	748	* polled.
hudakz	3:5b17e4656dd0	749	*
hudakz	3:5b17e4656dd0	750	* The polling event can be used for sending data without having to
hudakz	3:5b17e4656dd0	751	* wait for the remote host to send data.
hudakz	3:5b17e4656dd0	752	*
hudakz	3:5b17e4656dd0	753	* \hideinitializer
hudakz	3:5b17e4656dd0	754	*/
hudakz	3:5b17e4656dd0	755
hudakz	3:5b17e4656dd0	756	#define uip_poll() (uip_flags & UIP_POLL)
hudakz	3:5b17e4656dd0	757
hudakz	3:5b17e4656dd0	758	/**
hudakz	3:5b17e4656dd0	759	* Get the initial maxium segment size (MSS) of the current
hudakz	3:5b17e4656dd0	760	* connection.
hudakz	3:5b17e4656dd0	761	*
hudakz	3:5b17e4656dd0	762	* \hideinitializer
hudakz	3:5b17e4656dd0	763	*/
hudakz	3:5b17e4656dd0	764
hudakz	3:5b17e4656dd0	765	#define uip_initialmss() (uip_conn->initialmss)
hudakz	3:5b17e4656dd0	766
hudakz	3:5b17e4656dd0	767	/**
hudakz	3:5b17e4656dd0	768	* Get the current maxium segment size that can be sent on the current
hudakz	3:5b17e4656dd0	769	* connection.
hudakz	3:5b17e4656dd0	770	*
hudakz	3:5b17e4656dd0	771	* The current maxiumum segment size that can be sent on the
hudakz	3:5b17e4656dd0	772	* connection is computed from the receiver's window and the MSS of
hudakz	3:5b17e4656dd0	773	* the connection (which also is available by calling
hudakz	3:5b17e4656dd0	774	* uip_initialmss()).
hudakz	3:5b17e4656dd0	775	*
hudakz	3:5b17e4656dd0	776	* \hideinitializer
hudakz	3:5b17e4656dd0	777	*/
hudakz	3:5b17e4656dd0	778
hudakz	3:5b17e4656dd0	779	#define uip_mss() (uip_conn->mss)
hudakz	3:5b17e4656dd0	780	/**
hudakz	3:5b17e4656dd0	781	* Set up a new UDP connection.
hudakz	3:5b17e4656dd0	782	*
hudakz	3:5b17e4656dd0	783	* This function sets up a new UDP connection. The function will
hudakz	3:5b17e4656dd0	784	* automatically allocate an unused local port for the new
hudakz	3:5b17e4656dd0	785	* connection. However, another port can be chosen by using the
hudakz	3:5b17e4656dd0	786	* uip_udp_bind() call, after the uip_udp_new() function has been
hudakz	3:5b17e4656dd0	787	* called.
hudakz	3:5b17e4656dd0	788	*
hudakz	3:5b17e4656dd0	789	* Example:
hudakz	3:5b17e4656dd0	790	\code
hudakz	3:5b17e4656dd0	791	uip_ipaddr_t addr;
hudakz	3:5b17e4656dd0	792	struct uip_udp_conn *c;
hudakz	3:5b17e4656dd0	793
hudakz	3:5b17e4656dd0	794	uip_ipaddr(&addr, 192,168,2,1);
hudakz	3:5b17e4656dd0	795	c = uip_udp_new(&addr, HTONS(12345));
hudakz	3:5b17e4656dd0	796	if(c != NULL) {
hudakz	3:5b17e4656dd0	797	uip_udp_bind(c, HTONS(12344));
hudakz	3:5b17e4656dd0	798	}
hudakz	3:5b17e4656dd0	799	\endcode
hudakz	3:5b17e4656dd0	800	* \param ripaddr The IP address of the remote host.
hudakz	3:5b17e4656dd0	801	*
hudakz	3:5b17e4656dd0	802	* \param rport The remote port number in network byte order.
hudakz	3:5b17e4656dd0	803	*
hudakz	3:5b17e4656dd0	804	* \return The uip_udp_conn structure for the new connection or NULL
hudakz	3:5b17e4656dd0	805	* if no connection could be allocated.
hudakz	3:5b17e4656dd0	806	*/
hudakz	3:5b17e4656dd0	807	struct uip_udp_conn* uip_udp_new(uip_ipaddr_t* ripaddr, u16_t rport);
hudakz	3:5b17e4656dd0	808
hudakz	3:5b17e4656dd0	809	/**
hudakz	3:5b17e4656dd0	810	* Removed a UDP connection.
hudakz	3:5b17e4656dd0	811	*
hudakz	3:5b17e4656dd0	812	* \param conn A pointer to the uip_udp_conn structure for the connection.
hudakz	3:5b17e4656dd0	813	*
hudakz	3:5b17e4656dd0	814	* \hideinitializer
hudakz	3:5b17e4656dd0	815	*/
hudakz	3:5b17e4656dd0	816
hudakz	3:5b17e4656dd0	817	#define uip_udp_remove(conn) (conn)->lport = 0
hudakz	3:5b17e4656dd0	818
hudakz	3:5b17e4656dd0	819	/**
hudakz	3:5b17e4656dd0	820	* Bind a UDP connection to a local port.
hudakz	3:5b17e4656dd0	821	*
hudakz	3:5b17e4656dd0	822	* \param conn A pointer to the uip_udp_conn structure for the
hudakz	3:5b17e4656dd0	823	* connection.
hudakz	3:5b17e4656dd0	824	*
hudakz	3:5b17e4656dd0	825	* \param port The local port number, in network byte order.
hudakz	3:5b17e4656dd0	826	*
hudakz	3:5b17e4656dd0	827	* \hideinitializer
hudakz	3:5b17e4656dd0	828	*/
hudakz	3:5b17e4656dd0	829
hudakz	3:5b17e4656dd0	830	#define uip_udp_bind(conn, port) (conn)->lport = port
hudakz	3:5b17e4656dd0	831
hudakz	3:5b17e4656dd0	832	/**
hudakz	3:5b17e4656dd0	833	* Send a UDP datagram of length len on the current connection.
hudakz	3:5b17e4656dd0	834	*
hudakz	3:5b17e4656dd0	835	* This function can only be called in response to a UDP event (poll
hudakz	3:5b17e4656dd0	836	* or newdata). The data must be present in the uip_buf buffer, at the
hudakz	3:5b17e4656dd0	837	* place pointed to by the uip_appdata pointer.
hudakz	3:5b17e4656dd0	838	*
hudakz	3:5b17e4656dd0	839	* \param len The length of the data in the uip_buf buffer.
hudakz	3:5b17e4656dd0	840	*
hudakz	3:5b17e4656dd0	841	* \hideinitializer
hudakz	3:5b17e4656dd0	842	*/
hudakz	3:5b17e4656dd0	843
hudakz	3:5b17e4656dd0	844	#define uip_udp_send(len) uip_send((char*)uip_appdata, len)
hudakz	3:5b17e4656dd0	845
hudakz	3:5b17e4656dd0	846	/** @} */
hudakz	3:5b17e4656dd0	847
hudakz	3:5b17e4656dd0	848	/* uIP convenience and converting functions. */
hudakz	3:5b17e4656dd0	849	/**
hudakz	3:5b17e4656dd0	850	* \defgroup uipconvfunc uIP conversion functions
hudakz	3:5b17e4656dd0	851	* @{
hudakz	3:5b17e4656dd0	852	*
hudakz	3:5b17e4656dd0	853	* These functions can be used for converting between different data
hudakz	3:5b17e4656dd0	854	* formats used by uIP.
hudakz	3:5b17e4656dd0	855	*/
hudakz	3:5b17e4656dd0	856
hudakz	3:5b17e4656dd0	857	/**
hudakz	3:5b17e4656dd0	858	* Construct an IP address from four bytes.
hudakz	3:5b17e4656dd0	859	*
hudakz	3:5b17e4656dd0	860	* This function constructs an IP address of the type that uIP handles
hudakz	3:5b17e4656dd0	861	* internally from four bytes. The function is handy for specifying IP
hudakz	3:5b17e4656dd0	862	* addresses to use with e.g. the uip_connect() function.
hudakz	3:5b17e4656dd0	863	*
hudakz	3:5b17e4656dd0	864	* Example:
hudakz	3:5b17e4656dd0	865	\code
hudakz	3:5b17e4656dd0	866	uip_ipaddr_t ipaddr;
hudakz	3:5b17e4656dd0	867	struct uip_conn *c;
hudakz	3:5b17e4656dd0	868
hudakz	3:5b17e4656dd0	869	uip_ipaddr(&ipaddr, 192,168,1,2);
hudakz	3:5b17e4656dd0	870	c = uip_connect(&ipaddr, HTONS(80));
hudakz	3:5b17e4656dd0	871	\endcode
hudakz	3:5b17e4656dd0	872	*
hudakz	3:5b17e4656dd0	873	* \param addr A pointer to a uip_ipaddr_t variable that will be
hudakz	3:5b17e4656dd0	874	* filled in with the IP address.
hudakz	3:5b17e4656dd0	875	*
hudakz	3:5b17e4656dd0	876	* \param addr0 The first octet of the IP address.
hudakz	3:5b17e4656dd0	877	* \param addr1 The second octet of the IP address.
hudakz	3:5b17e4656dd0	878	* \param addr2 The third octet of the IP address.
hudakz	3:5b17e4656dd0	879	* \param addr3 The forth octet of the IP address.
hudakz	3:5b17e4656dd0	880	*
hudakz	3:5b17e4656dd0	881	* \hideinitializer
hudakz	3:5b17e4656dd0	882	*/
hudakz	3:5b17e4656dd0	883	#define uip_ipaddr(addr, addr0, addr1, addr2, addr3) \
hudakz	3:5b17e4656dd0	884	do \
hudakz	3:5b17e4656dd0	885	{ \
hudakz	3:5b17e4656dd0	886	((u16_t *) (addr))[0] = HTONS(((addr0) << 8) \| (addr1)); \
hudakz	3:5b17e4656dd0	887	((u16_t *) (addr))[1] = HTONS(((addr2) << 8) \| (addr3)); \
hudakz	3:5b17e4656dd0	888	} while(0)
hudakz	3:5b17e4656dd0	889
hudakz	3:5b17e4656dd0	890	/**
hudakz	3:5b17e4656dd0	891	* Construct an IPv6 address from eight 16-bit words.
hudakz	3:5b17e4656dd0	892	*
hudakz	3:5b17e4656dd0	893	* This function constructs an IPv6 address.
hudakz	3:5b17e4656dd0	894	*
hudakz	3:5b17e4656dd0	895	* \hideinitializer
hudakz	3:5b17e4656dd0	896	*/
hudakz	3:5b17e4656dd0	897
hudakz	3:5b17e4656dd0	898	#define uip_ip6addr(addr, addr0, addr1, addr2, addr3, addr4, addr5, addr6, addr7) \
hudakz	3:5b17e4656dd0	899	do \
hudakz	3:5b17e4656dd0	900	{ \
hudakz	3:5b17e4656dd0	901	((u16_t *) (addr))[0] = HTONS((addr0)); \
hudakz	3:5b17e4656dd0	902	((u16_t *) (addr))[1] = HTONS((addr1)); \
hudakz	3:5b17e4656dd0	903	((u16_t *) (addr))[2] = HTONS((addr2)); \
hudakz	3:5b17e4656dd0	904	((u16_t *) (addr))[3] = HTONS((addr3)); \
hudakz	3:5b17e4656dd0	905	((u16_t *) (addr))[4] = HTONS((addr4)); \
hudakz	3:5b17e4656dd0	906	((u16_t *) (addr))[5] = HTONS((addr5)); \
hudakz	3:5b17e4656dd0	907	((u16_t *) (addr))[6] = HTONS((addr6)); \
hudakz	3:5b17e4656dd0	908	((u16_t *) (addr))[7] = HTONS((addr7)); \
hudakz	3:5b17e4656dd0	909	} while(0) /**
hudakz	3:5b17e4656dd0	910	* Copy an IP address to another IP address.
hudakz	3:5b17e4656dd0	911	*
hudakz	3:5b17e4656dd0	912	* Copies an IP address from one place to another.
hudakz	3:5b17e4656dd0	913	*
hudakz	3:5b17e4656dd0	914	* Example:
hudakz	3:5b17e4656dd0	915	\code
hudakz	3:5b17e4656dd0	916	uip_ipaddr_t ipaddr1, ipaddr2;
hudakz	3:5b17e4656dd0	917
hudakz	3:5b17e4656dd0	918	uip_ipaddr(&ipaddr1, 192,16,1,2);
hudakz	3:5b17e4656dd0	919	uip_ipaddr_copy(&ipaddr2, &ipaddr1);
hudakz	3:5b17e4656dd0	920	\endcode
hudakz	3:5b17e4656dd0	921	*
hudakz	3:5b17e4656dd0	922	* \param dest The destination for the copy.
hudakz	3:5b17e4656dd0	923	* \param src The source from where to copy.
hudakz	3:5b17e4656dd0	924	*
hudakz	3:5b17e4656dd0	925	* \hideinitializer
hudakz	3:5b17e4656dd0	926	*/
hudakz	3:5b17e4656dd0	927
hudakz	3:5b17e4656dd0	928	#if !UIP_CONF_IPV6
hudakz	3:5b17e4656dd0	929	#define uip_ipaddr_copy(dest, src) \
hudakz	3:5b17e4656dd0	930	do \
hudakz	3:5b17e4656dd0	931	{ \
hudakz	3:5b17e4656dd0	932	((u16_t)dest)[0] = ((u16_t)src)[0]; \
hudakz	3:5b17e4656dd0	933	((u16_t)dest)[1] = ((u16_t)src)[1]; \
hudakz	3:5b17e4656dd0	934	} while(0)
hudakz	3:5b17e4656dd0	935	#else /* !UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	936
hudakz	3:5b17e4656dd0	937	#define uip_ipaddr_copy(dest, src) memcpy(dest, src, sizeof(uip_ip6addr_t))
hudakz	3:5b17e4656dd0	938	#endif /* !UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	939
hudakz	3:5b17e4656dd0	940	/**
hudakz	3:5b17e4656dd0	941	* Compare two IP addresses
hudakz	3:5b17e4656dd0	942	*
hudakz	3:5b17e4656dd0	943	* Compares two IP addresses.
hudakz	3:5b17e4656dd0	944	*
hudakz	3:5b17e4656dd0	945	* Example:
hudakz	3:5b17e4656dd0	946	\code
hudakz	3:5b17e4656dd0	947	uip_ipaddr_t ipaddr1, ipaddr2;
hudakz	3:5b17e4656dd0	948
hudakz	3:5b17e4656dd0	949	uip_ipaddr(&ipaddr1, 192,16,1,2);
hudakz	3:5b17e4656dd0	950	if(uip_ipaddr_cmp(&ipaddr2, &ipaddr1)) {
hudakz	3:5b17e4656dd0	951	printf("They are the same");
hudakz	3:5b17e4656dd0	952	}
hudakz	3:5b17e4656dd0	953	\endcode
hudakz	3:5b17e4656dd0	954	*
hudakz	3:5b17e4656dd0	955	* \param addr1 The first IP address.
hudakz	3:5b17e4656dd0	956	* \param addr2 The second IP address.
hudakz	3:5b17e4656dd0	957	*
hudakz	3:5b17e4656dd0	958	* \hideinitializer
hudakz	3:5b17e4656dd0	959	*/
hudakz	3:5b17e4656dd0	960
hudakz	3:5b17e4656dd0	961	#if !UIP_CONF_IPV6
hudakz	3:5b17e4656dd0	962	#define uip_ipaddr_cmp(addr1, addr2) \
hudakz	3:5b17e4656dd0	963	(((u16_t)addr1)[0] == ((u16_t)addr2)[0] && ((u16_t)addr1)[1] == ((u16_t)addr2)[1])
hudakz	3:5b17e4656dd0	964	#else /* !UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	965
hudakz	3:5b17e4656dd0	966	#define uip_ipaddr_cmp(addr1, addr2) (memcmp(addr1, addr2, sizeof(uip_ip6addr_t)) == 0)
hudakz	3:5b17e4656dd0	967	#endif /* !UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	968
hudakz	3:5b17e4656dd0	969	/**
hudakz	3:5b17e4656dd0	970	* Compare two IP addresses with netmasks
hudakz	3:5b17e4656dd0	971	*
hudakz	3:5b17e4656dd0	972	* Compares two IP addresses with netmasks. The masks are used to mask
hudakz	3:5b17e4656dd0	973	* out the bits that are to be compared.
hudakz	3:5b17e4656dd0	974	*
hudakz	3:5b17e4656dd0	975	* Example:
hudakz	3:5b17e4656dd0	976	\code
hudakz	3:5b17e4656dd0	977	uip_ipaddr_t ipaddr1, ipaddr2, mask;
hudakz	3:5b17e4656dd0	978
hudakz	3:5b17e4656dd0	979	uip_ipaddr(&mask, 255,255,255,0);
hudakz	3:5b17e4656dd0	980	uip_ipaddr(&ipaddr1, 192,16,1,2);
hudakz	3:5b17e4656dd0	981	uip_ipaddr(&ipaddr2, 192,16,1,3);
hudakz	3:5b17e4656dd0	982	if(uip_ipaddr_maskcmp(&ipaddr1, &ipaddr2, &mask)) {
hudakz	3:5b17e4656dd0	983	printf("They are the same");
hudakz	3:5b17e4656dd0	984	}
hudakz	3:5b17e4656dd0	985	\endcode
hudakz	3:5b17e4656dd0	986	*
hudakz	3:5b17e4656dd0	987	* \param addr1 The first IP address.
hudakz	3:5b17e4656dd0	988	* \param addr2 The second IP address.
hudakz	3:5b17e4656dd0	989	* \param mask The netmask.
hudakz	3:5b17e4656dd0	990	*
hudakz	3:5b17e4656dd0	991	* \hideinitializer
hudakz	3:5b17e4656dd0	992	*/
hudakz	3:5b17e4656dd0	993
hudakz	3:5b17e4656dd0	994	#define uip_ipaddr_maskcmp(addr1, addr2, mask) \
hudakz	3:5b17e4656dd0	995	( \
hudakz	3:5b17e4656dd0	996	((((u16_t)addr1)[0] & ((u16_t)mask)[0]) == (((u16_t)addr2)[0] & ((u16_t)mask)[0])) \
hudakz	3:5b17e4656dd0	997	&& ((((u16_t)addr1)[1] & ((u16_t)mask)[1]) == (((u16_t)addr2)[1] & ((u16_t)mask)[1])) \
hudakz	3:5b17e4656dd0	998	)
hudakz	3:5b17e4656dd0	999
hudakz	3:5b17e4656dd0	1000	/**
hudakz	3:5b17e4656dd0	1001	* Mask out the network part of an IP address.
hudakz	3:5b17e4656dd0	1002	*
hudakz	3:5b17e4656dd0	1003	* Masks out the network part of an IP address, given the address and
hudakz	3:5b17e4656dd0	1004	* the netmask.
hudakz	3:5b17e4656dd0	1005	*
hudakz	3:5b17e4656dd0	1006	* Example:
hudakz	3:5b17e4656dd0	1007	\code
hudakz	3:5b17e4656dd0	1008	uip_ipaddr_t ipaddr1, ipaddr2, netmask;
hudakz	3:5b17e4656dd0	1009
hudakz	3:5b17e4656dd0	1010	uip_ipaddr(&ipaddr1, 192,16,1,2);
hudakz	3:5b17e4656dd0	1011	uip_ipaddr(&netmask, 255,255,255,0);
hudakz	3:5b17e4656dd0	1012	uip_ipaddr_mask(&ipaddr2, &ipaddr1, &netmask);
hudakz	3:5b17e4656dd0	1013	\endcode
hudakz	3:5b17e4656dd0	1014	*
hudakz	3:5b17e4656dd0	1015	* In the example above, the variable "ipaddr2" will contain the IP
hudakz	3:5b17e4656dd0	1016	* address 192.168.1.0.
hudakz	3:5b17e4656dd0	1017	*
hudakz	3:5b17e4656dd0	1018	* \param dest Where the result is to be placed.
hudakz	3:5b17e4656dd0	1019	* \param src The IP address.
hudakz	3:5b17e4656dd0	1020	* \param mask The netmask.
hudakz	3:5b17e4656dd0	1021	*
hudakz	3:5b17e4656dd0	1022	* \hideinitializer
hudakz	3:5b17e4656dd0	1023	*/
hudakz	3:5b17e4656dd0	1024
hudakz	3:5b17e4656dd0	1025	#define uip_ipaddr_mask(dest, src, mask) \
hudakz	3:5b17e4656dd0	1026	do \
hudakz	3:5b17e4656dd0	1027	{ \
hudakz	3:5b17e4656dd0	1028	((u16_t)dest)[0] = ((u16_t)src)[0] & ((u16_t*)mask)[0]; \
hudakz	3:5b17e4656dd0	1029	((u16_t)dest)[1] = ((u16_t)src)[1] & ((u16_t*)mask)[1]; \
hudakz	3:5b17e4656dd0	1030	} while(0)
hudakz	3:5b17e4656dd0	1031
hudakz	3:5b17e4656dd0	1032	/**
hudakz	3:5b17e4656dd0	1033	* Pick the first octet of an IP address.
hudakz	3:5b17e4656dd0	1034	*
hudakz	3:5b17e4656dd0	1035	* Picks out the first octet of an IP address.
hudakz	3:5b17e4656dd0	1036	*
hudakz	3:5b17e4656dd0	1037	* Example:
hudakz	3:5b17e4656dd0	1038	\code
hudakz	3:5b17e4656dd0	1039	uip_ipaddr_t ipaddr;
hudakz	3:5b17e4656dd0	1040	u8_t octet;
hudakz	3:5b17e4656dd0	1041
hudakz	3:5b17e4656dd0	1042	uip_ipaddr(&ipaddr, 1,2,3,4);
hudakz	3:5b17e4656dd0	1043	octet = uip_ipaddr1(&ipaddr);
hudakz	3:5b17e4656dd0	1044	\endcode
hudakz	3:5b17e4656dd0	1045	*
hudakz	3:5b17e4656dd0	1046	* In the example above, the variable "octet" will contain the value 1.
hudakz	3:5b17e4656dd0	1047	*
hudakz	3:5b17e4656dd0	1048	* \hideinitializer
hudakz	3:5b17e4656dd0	1049	*/
hudakz	3:5b17e4656dd0	1050
hudakz	3:5b17e4656dd0	1051	#define uip_ipaddr1(addr) (htons(((u16_t *) (addr))[0]) >> 8)
hudakz	3:5b17e4656dd0	1052
hudakz	3:5b17e4656dd0	1053	/**
hudakz	3:5b17e4656dd0	1054	* Pick the second octet of an IP address.
hudakz	3:5b17e4656dd0	1055	*
hudakz	3:5b17e4656dd0	1056	* Picks out the second octet of an IP address.
hudakz	3:5b17e4656dd0	1057	*
hudakz	3:5b17e4656dd0	1058	* Example:
hudakz	3:5b17e4656dd0	1059	\code
hudakz	3:5b17e4656dd0	1060	uip_ipaddr_t ipaddr;
hudakz	3:5b17e4656dd0	1061	u8_t octet;
hudakz	3:5b17e4656dd0	1062
hudakz	3:5b17e4656dd0	1063	uip_ipaddr(&ipaddr, 1,2,3,4);
hudakz	3:5b17e4656dd0	1064	octet = uip_ipaddr2(&ipaddr);
hudakz	3:5b17e4656dd0	1065	\endcode
hudakz	3:5b17e4656dd0	1066	*
hudakz	3:5b17e4656dd0	1067	* In the example above, the variable "octet" will contain the value 2.
hudakz	3:5b17e4656dd0	1068	*
hudakz	3:5b17e4656dd0	1069	* \hideinitializer
hudakz	3:5b17e4656dd0	1070	*/
hudakz	3:5b17e4656dd0	1071
hudakz	3:5b17e4656dd0	1072	#define uip_ipaddr2(addr) (htons(((u16_t *) (addr))[0]) & 0xff)
hudakz	3:5b17e4656dd0	1073
hudakz	3:5b17e4656dd0	1074	/**
hudakz	3:5b17e4656dd0	1075	* Pick the third octet of an IP address.
hudakz	3:5b17e4656dd0	1076	*
hudakz	3:5b17e4656dd0	1077	* Picks out the third octet of an IP address.
hudakz	3:5b17e4656dd0	1078	*
hudakz	3:5b17e4656dd0	1079	* Example:
hudakz	3:5b17e4656dd0	1080	\code
hudakz	3:5b17e4656dd0	1081	uip_ipaddr_t ipaddr;
hudakz	3:5b17e4656dd0	1082	u8_t octet;
hudakz	3:5b17e4656dd0	1083
hudakz	3:5b17e4656dd0	1084	uip_ipaddr(&ipaddr, 1,2,3,4);
hudakz	3:5b17e4656dd0	1085	octet = uip_ipaddr3(&ipaddr);
hudakz	3:5b17e4656dd0	1086	\endcode
hudakz	3:5b17e4656dd0	1087	*
hudakz	3:5b17e4656dd0	1088	* In the example above, the variable "octet" will contain the value 3.
hudakz	3:5b17e4656dd0	1089	*
hudakz	3:5b17e4656dd0	1090	* \hideinitializer
hudakz	3:5b17e4656dd0	1091	*/
hudakz	3:5b17e4656dd0	1092
hudakz	3:5b17e4656dd0	1093	#define uip_ipaddr3(addr) (htons(((u16_t *) (addr))[1]) >> 8)
hudakz	3:5b17e4656dd0	1094
hudakz	3:5b17e4656dd0	1095	/**
hudakz	3:5b17e4656dd0	1096	* Pick the fourth octet of an IP address.
hudakz	3:5b17e4656dd0	1097	*
hudakz	3:5b17e4656dd0	1098	* Picks out the fourth octet of an IP address.
hudakz	3:5b17e4656dd0	1099	*
hudakz	3:5b17e4656dd0	1100	* Example:
hudakz	3:5b17e4656dd0	1101	\code
hudakz	3:5b17e4656dd0	1102	uip_ipaddr_t ipaddr;
hudakz	3:5b17e4656dd0	1103	u8_t octet;
hudakz	3:5b17e4656dd0	1104
hudakz	3:5b17e4656dd0	1105	uip_ipaddr(&ipaddr, 1,2,3,4);
hudakz	3:5b17e4656dd0	1106	octet = uip_ipaddr4(&ipaddr);
hudakz	3:5b17e4656dd0	1107	\endcode
hudakz	3:5b17e4656dd0	1108	*
hudakz	3:5b17e4656dd0	1109	* In the example above, the variable "octet" will contain the value 4.
hudakz	3:5b17e4656dd0	1110	*
hudakz	3:5b17e4656dd0	1111	* \hideinitializer
hudakz	3:5b17e4656dd0	1112	*/
hudakz	3:5b17e4656dd0	1113
hudakz	3:5b17e4656dd0	1114	#define uip_ipaddr4(addr) (htons(((u16_t *) (addr))[1]) & 0xff)
hudakz	3:5b17e4656dd0	1115	/**
hudakz	3:5b17e4656dd0	1116	* Convert 16-bit quantity from host byte order to network byte order.
hudakz	3:5b17e4656dd0	1117	*
hudakz	3:5b17e4656dd0	1118	* This macro is primarily used for converting constants from host
hudakz	3:5b17e4656dd0	1119	* byte order to network byte order. For converting variables to
hudakz	3:5b17e4656dd0	1120	* network byte order, use the htons() function instead.
hudakz	3:5b17e4656dd0	1121	*
hudakz	3:5b17e4656dd0	1122	* \hideinitializer
hudakz	3:5b17e4656dd0	1123	*/
hudakz	3:5b17e4656dd0	1124
hudakz	3:5b17e4656dd0	1125	#ifndef HTONS
hudakz	3:5b17e4656dd0	1126	#if UIP_BYTE_ORDER == UIP_BIG_ENDIAN
hudakz	3:5b17e4656dd0	1127	#define HTONS(n) (n)
hudakz	3:5b17e4656dd0	1128	#else /* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */
hudakz	3:5b17e4656dd0	1129
hudakz	3:5b17e4656dd0	1130	#define HTONS(n) (u16_t) ((((u16_t) (n)) << 8) \| (((u16_t) (n)) >> 8))
hudakz	3:5b17e4656dd0	1131	#endif /* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */
hudakz	3:5b17e4656dd0	1132
hudakz	3:5b17e4656dd0	1133	#else
hudakz	3:5b17e4656dd0	1134	#error "HTONS already defined!"
hudakz	3:5b17e4656dd0	1135	#endif /* HTONS */
hudakz	3:5b17e4656dd0	1136
hudakz	3:5b17e4656dd0	1137	/**
hudakz	3:5b17e4656dd0	1138	* Convert 16-bit quantity from host byte order to network byte order.
hudakz	3:5b17e4656dd0	1139	*
hudakz	3:5b17e4656dd0	1140	* This function is primarily used for converting variables from host
hudakz	3:5b17e4656dd0	1141	* byte order to network byte order. For converting constants to
hudakz	3:5b17e4656dd0	1142	* network byte order, use the HTONS() macro instead.
hudakz	3:5b17e4656dd0	1143	*/
hudakz	3:5b17e4656dd0	1144
hudakz	3:5b17e4656dd0	1145	#ifndef htons
hudakz	3:5b17e4656dd0	1146	u16_t htons(u16_t val);
hudakz	3:5b17e4656dd0	1147	#endif /* htons */
hudakz	3:5b17e4656dd0	1148
hudakz	3:5b17e4656dd0	1149	#ifndef ntohs
hudakz	3:5b17e4656dd0	1150	#define ntohs htons
hudakz	3:5b17e4656dd0	1151	#endif
hudakz	3:5b17e4656dd0	1152	/** @} */
hudakz	3:5b17e4656dd0	1153
hudakz	3:5b17e4656dd0	1154	/**
hudakz	3:5b17e4656dd0	1155	* Pointer to the application data in the packet buffer.
hudakz	3:5b17e4656dd0	1156	*
hudakz	3:5b17e4656dd0	1157	* This pointer points to the application data when the application is
hudakz	3:5b17e4656dd0	1158	* called. If the application wishes to send data, the application may
hudakz	3:5b17e4656dd0	1159	* use this space to write the data into before calling uip_send().
hudakz	3:5b17e4656dd0	1160	*/
hudakz	3:5b17e4656dd0	1161	extern void* uip_appdata;
hudakz	3:5b17e4656dd0	1162
hudakz	3:5b17e4656dd0	1163	#if UIP_URGDATA > 0
hudakz	3:5b17e4656dd0	1164	/* u8_t *uip_urgdata:
hudakz	3:5b17e4656dd0	1165	*
hudakz	3:5b17e4656dd0	1166	* This pointer points to any urgent data that has been received. Only
hudakz	3:5b17e4656dd0	1167	* present if compiled with support for urgent data (UIP_URGDATA).
hudakz	3:5b17e4656dd0	1168	*/
hudakz	3:5b17e4656dd0	1169	extern void* uip_urgdata;
hudakz	3:5b17e4656dd0	1170	#endif /* UIP_URGDATA > 0 */
hudakz	3:5b17e4656dd0	1171
hudakz	3:5b17e4656dd0	1172	/**
hudakz	3:5b17e4656dd0	1173	* \defgroup uipdrivervars Variables used in uIP device drivers
hudakz	3:5b17e4656dd0	1174	* @{
hudakz	3:5b17e4656dd0	1175	*
hudakz	3:5b17e4656dd0	1176	* uIP has a few global variables that are used in device drivers for
hudakz	3:5b17e4656dd0	1177	* uIP.
hudakz	3:5b17e4656dd0	1178	*/
hudakz	3:5b17e4656dd0	1179
hudakz	3:5b17e4656dd0	1180	/**
hudakz	3:5b17e4656dd0	1181	* The length of the packet in the uip_buf buffer.
hudakz	3:5b17e4656dd0	1182	*
hudakz	3:5b17e4656dd0	1183	* The global variable uip_len holds the length of the packet in the
hudakz	3:5b17e4656dd0	1184	* uip_buf buffer.
hudakz	3:5b17e4656dd0	1185	*
hudakz	3:5b17e4656dd0	1186	* When the network device driver calls the uIP input function,
hudakz	3:5b17e4656dd0	1187	* uip_len should be set to the length of the packet in the uip_buf
hudakz	3:5b17e4656dd0	1188	* buffer.
hudakz	3:5b17e4656dd0	1189	*
hudakz	3:5b17e4656dd0	1190	* When sending packets, the device driver should use the contents of
hudakz	3:5b17e4656dd0	1191	* the uip_len variable to determine the length of the outgoing
hudakz	3:5b17e4656dd0	1192	* packet.
hudakz	3:5b17e4656dd0	1193	*
hudakz	3:5b17e4656dd0	1194	*/
hudakz	3:5b17e4656dd0	1195	extern u16_t uip_len;
hudakz	3:5b17e4656dd0	1196
hudakz	3:5b17e4656dd0	1197	/** @} */
hudakz	3:5b17e4656dd0	1198	#if UIP_URGDATA > 0
hudakz	3:5b17e4656dd0	1199	extern u16_t uip_urglen, uip_surglen;
hudakz	3:5b17e4656dd0	1200	#endif /* UIP_URGDATA > 0 */
hudakz	3:5b17e4656dd0	1201
hudakz	3:5b17e4656dd0	1202	/**
hudakz	3:5b17e4656dd0	1203	* Representation of a uIP TCP connection.
hudakz	3:5b17e4656dd0	1204	*
hudakz	3:5b17e4656dd0	1205	* The uip_conn structure is used for identifying a connection. All
hudakz	3:5b17e4656dd0	1206	* but one field in the structure are to be considered read-only by an
hudakz	3:5b17e4656dd0	1207	* application. The only exception is the appstate field whos purpose
hudakz	3:5b17e4656dd0	1208	* is to let the application store application-specific state (e.g.,
hudakz	3:5b17e4656dd0	1209	* file pointers) for the connection. The type of this field is
hudakz	3:5b17e4656dd0	1210	* configured in the "uipopt.h" header file.
hudakz	3:5b17e4656dd0	1211	*/
hudakz	3:5b17e4656dd0	1212
hudakz	3:5b17e4656dd0	1213	struct uip_conn
hudakz	3:5b17e4656dd0	1214	{
hudakz	3:5b17e4656dd0	1215	uip_ipaddr_t ripaddr; /*< The IP address of the remote host. /
hudakz	3:5b17e4656dd0	1216
hudakz	3:5b17e4656dd0	1217	u16_t lport; /*< The local TCP port, in network byte order. /
hudakz	3:5b17e4656dd0	1218	u16_t rport; /**< The local remote TCP port, in network byte
hudakz	3:5b17e4656dd0	1219	order. */
hudakz	3:5b17e4656dd0	1220
hudakz	3:5b17e4656dd0	1221	u8_t rcv_nxt[4]; /**< The sequence number that we expect to
hudakz	3:5b17e4656dd0	1222	receive next. */
hudakz	3:5b17e4656dd0	1223	u8_t snd_nxt[4]; /**< The sequence number that was last sent by
hudakz	3:5b17e4656dd0	1224	us. */
hudakz	3:5b17e4656dd0	1225	u16_t len; /*< Length of the data that was previously sent. /
hudakz	3:5b17e4656dd0	1226	u16_t mss; /**< Current maximum segment size for the
hudakz	3:5b17e4656dd0	1227	connection. */
hudakz	3:5b17e4656dd0	1228	u16_t initialmss; /**< Initial maximum segment size for the
hudakz	3:5b17e4656dd0	1229	connection. */
hudakz	3:5b17e4656dd0	1230	u8_t sa; /**< Retransmission time-out calculation state
hudakz	3:5b17e4656dd0	1231	variable. */
hudakz	3:5b17e4656dd0	1232	u8_t sv; /**< Retransmission time-out calculation state
hudakz	3:5b17e4656dd0	1233	variable. */
hudakz	3:5b17e4656dd0	1234	u8_t rto; /*< Retransmission time-out. /
hudakz	3:5b17e4656dd0	1235	u8_t tcpstateflags; /*< TCP state and flags. /
hudakz	3:5b17e4656dd0	1236	u8_t timer; /*< The retransmission timer. /
hudakz	3:5b17e4656dd0	1237	u8_t nrtx; /**< The number of retransmissions for the last
hudakz	3:5b17e4656dd0	1238	segment sent. */
hudakz	3:5b17e4656dd0	1239
hudakz	3:5b17e4656dd0	1240	/** The application state. */
hudakz	3:5b17e4656dd0	1241	uip_tcp_appstate_t appstate;
hudakz	3:5b17e4656dd0	1242	};
hudakz	3:5b17e4656dd0	1243
hudakz	3:5b17e4656dd0	1244	/**
hudakz	3:5b17e4656dd0	1245	* Pointer to the current TCP connection.
hudakz	3:5b17e4656dd0	1246	*
hudakz	3:5b17e4656dd0	1247	* The uip_conn pointer can be used to access the current TCP
hudakz	3:5b17e4656dd0	1248	* connection.
hudakz	3:5b17e4656dd0	1249	*/
hudakz	3:5b17e4656dd0	1250	extern struct uip_conn* uip_conn;
hudakz	3:5b17e4656dd0	1251
hudakz	3:5b17e4656dd0	1252	/* The array containing all uIP connections. */
hudakz	3:5b17e4656dd0	1253	extern struct uip_conn uip_conns[UIP_CONNS];
hudakz	3:5b17e4656dd0	1254
hudakz	3:5b17e4656dd0	1255	/**
hudakz	3:5b17e4656dd0	1256	* \addtogroup uiparch
hudakz	3:5b17e4656dd0	1257	* @{
hudakz	3:5b17e4656dd0	1258	*/
hudakz	3:5b17e4656dd0	1259	/**
hudakz	3:5b17e4656dd0	1260	* 4-byte array used for the 32-bit sequence number calculations.
hudakz	3:5b17e4656dd0	1261	*/
hudakz	3:5b17e4656dd0	1262	extern u8_t uip_acc32[4];
hudakz	3:5b17e4656dd0	1263
hudakz	3:5b17e4656dd0	1264	/** @} */
hudakz	3:5b17e4656dd0	1265
hudakz	3:5b17e4656dd0	1266	#if UIP_UDP
hudakz	3:5b17e4656dd0	1267
hudakz	3:5b17e4656dd0	1268	/**
hudakz	3:5b17e4656dd0	1269	* Representation of a uIP UDP connection.
hudakz	3:5b17e4656dd0	1270	*/
hudakz	3:5b17e4656dd0	1271	struct uip_udp_conn
hudakz	3:5b17e4656dd0	1272	{
hudakz	3:5b17e4656dd0	1273	uip_ipaddr_t ripaddr; /*< The IP address of the remote peer. /
hudakz	3:5b17e4656dd0	1274	u16_t lport; /*< The local port number in network byte order. /
hudakz	3:5b17e4656dd0	1275	u16_t rport; /*< The remote port number in network byte order. /
hudakz	3:5b17e4656dd0	1276	u8_t ttl; /*< Default time-to-live. /
hudakz	3:5b17e4656dd0	1277
hudakz	3:5b17e4656dd0	1278	/** The application state. */
hudakz	3:5b17e4656dd0	1279	uip_udp_appstate_t appstate;
hudakz	3:5b17e4656dd0	1280	};
hudakz	3:5b17e4656dd0	1281
hudakz	3:5b17e4656dd0	1282	/**
hudakz	3:5b17e4656dd0	1283	* The current UDP connection.
hudakz	3:5b17e4656dd0	1284	*/
hudakz	3:5b17e4656dd0	1285	extern struct uip_udp_conn* uip_udp_conn;
hudakz	3:5b17e4656dd0	1286	extern struct uip_udp_conn uip_udp_conns[UIP_UDP_CONNS];
hudakz	3:5b17e4656dd0	1287	#endif /* UIP_UDP */
hudakz	3:5b17e4656dd0	1288
hudakz	3:5b17e4656dd0	1289	/**
hudakz	3:5b17e4656dd0	1290	* The structure holding the TCP/IP statistics that are gathered if
hudakz	3:5b17e4656dd0	1291	* UIP_STATISTICS is set to 1.
hudakz	3:5b17e4656dd0	1292	*
hudakz	3:5b17e4656dd0	1293	*/
hudakz	3:5b17e4656dd0	1294
hudakz	3:5b17e4656dd0	1295	struct uip_stats
hudakz	3:5b17e4656dd0	1296	{
hudakz	3:5b17e4656dd0	1297	struct
hudakz	3:5b17e4656dd0	1298	{
hudakz	3:5b17e4656dd0	1299	uip_stats_t drop; /**< Number of dropped packets at the IP
hudakz	3:5b17e4656dd0	1300	layer. */
hudakz	3:5b17e4656dd0	1301	uip_stats_t recv; /**< Number of received packets at the IP
hudakz	3:5b17e4656dd0	1302	layer. */
hudakz	3:5b17e4656dd0	1303	uip_stats_t sent; /**< Number of sent packets at the IP
hudakz	3:5b17e4656dd0	1304	layer. */
hudakz	3:5b17e4656dd0	1305	uip_stats_t vhlerr; /**< Number of packets dropped due to wrong
hudakz	3:5b17e4656dd0	1306	IP version or header length. */
hudakz	3:5b17e4656dd0	1307	uip_stats_t hblenerr; /**< Number of packets dropped due to wrong
hudakz	3:5b17e4656dd0	1308	IP length, high byte. */
hudakz	3:5b17e4656dd0	1309	uip_stats_t lblenerr; /**< Number of packets dropped due to wrong
hudakz	3:5b17e4656dd0	1310	IP length, low byte. */
hudakz	3:5b17e4656dd0	1311	uip_stats_t fragerr; /**< Number of packets dropped since they
hudakz	3:5b17e4656dd0	1312	were IP fragments. */
hudakz	3:5b17e4656dd0	1313	uip_stats_t chkerr; /**< Number of packets dropped due to IP
hudakz	3:5b17e4656dd0	1314	checksum errors. */
hudakz	3:5b17e4656dd0	1315	uip_stats_t protoerr; /**< Number of packets dropped since they
hudakz	3:5b17e4656dd0	1316	were neither ICMP, UDP nor TCP. */
hudakz	3:5b17e4656dd0	1317	} ip; /*< IP statistics. /
hudakz	3:5b17e4656dd0	1318	struct
hudakz	3:5b17e4656dd0	1319	{
hudakz	3:5b17e4656dd0	1320	uip_stats_t drop; /*< Number of dropped ICMP packets. /
hudakz	3:5b17e4656dd0	1321	uip_stats_t recv; /*< Number of received ICMP packets. /
hudakz	3:5b17e4656dd0	1322	uip_stats_t sent; /*< Number of sent ICMP packets. /
hudakz	3:5b17e4656dd0	1323	uip_stats_t typeerr; /**< Number of ICMP packets with a wrong
hudakz	3:5b17e4656dd0	1324	type. */
hudakz	3:5b17e4656dd0	1325	} icmp; /*< ICMP statistics. /
hudakz	3:5b17e4656dd0	1326	struct
hudakz	3:5b17e4656dd0	1327	{
hudakz	3:5b17e4656dd0	1328	uip_stats_t drop; /*< Number of dropped TCP segments. /
hudakz	3:5b17e4656dd0	1329	uip_stats_t recv; /*< Number of recived TCP segments. /
hudakz	3:5b17e4656dd0	1330	uip_stats_t sent; /*< Number of sent TCP segments. /
hudakz	3:5b17e4656dd0	1331	uip_stats_t chkerr; /**< Number of TCP segments with a bad
hudakz	3:5b17e4656dd0	1332	checksum. */
hudakz	3:5b17e4656dd0	1333	uip_stats_t ackerr; /**< Number of TCP segments with a bad ACK
hudakz	3:5b17e4656dd0	1334	number. */
hudakz	3:5b17e4656dd0	1335	uip_stats_t rst; /*< Number of recevied TCP RST (reset) segments. /
hudakz	3:5b17e4656dd0	1336	uip_stats_t rexmit; /*< Number of retransmitted TCP segments. /
hudakz	3:5b17e4656dd0	1337	uip_stats_t syndrop; /**< Number of dropped SYNs due to too few
hudakz	3:5b17e4656dd0	1338	connections was avaliable. */
hudakz	3:5b17e4656dd0	1339	uip_stats_t synrst; /**< Number of SYNs for closed ports,
hudakz	3:5b17e4656dd0	1340	triggering a RST. */
hudakz	3:5b17e4656dd0	1341	} tcp; /*< TCP statistics. /
hudakz	3:5b17e4656dd0	1342	#if UIP_UDP
hudakz	3:5b17e4656dd0	1343	struct
hudakz	3:5b17e4656dd0	1344	{
hudakz	3:5b17e4656dd0	1345	uip_stats_t drop; /*< Number of dropped UDP segments. /
hudakz	3:5b17e4656dd0	1346	uip_stats_t recv; /*< Number of recived UDP segments. /
hudakz	3:5b17e4656dd0	1347	uip_stats_t sent; /*< Number of sent UDP segments. /
hudakz	3:5b17e4656dd0	1348	uip_stats_t chkerr; /**< Number of UDP segments with a bad
hudakz	3:5b17e4656dd0	1349	checksum. */
hudakz	3:5b17e4656dd0	1350	} udp; /*< UDP statistics. /
hudakz	3:5b17e4656dd0	1351	#endif /* UIP_UDP */
hudakz	3:5b17e4656dd0	1352	};
hudakz	3:5b17e4656dd0	1353
hudakz	3:5b17e4656dd0	1354	/**
hudakz	3:5b17e4656dd0	1355	* The uIP TCP/IP statistics.
hudakz	3:5b17e4656dd0	1356	*
hudakz	3:5b17e4656dd0	1357	* This is the variable in which the uIP TCP/IP statistics are gathered.
hudakz	3:5b17e4656dd0	1358	*/
hudakz	3:5b17e4656dd0	1359	extern struct uip_stats uip_stat;
hudakz	3:5b17e4656dd0	1360
hudakz	3:5b17e4656dd0	1361	/---------------------------------------------------------------------------/
hudakz	3:5b17e4656dd0	1362	/* All the stuff below this point is internal to uIP and should not be
hudakz	3:5b17e4656dd0	1363	* used directly by an application or by a device driver.
hudakz	3:5b17e4656dd0	1364	*/
hudakz	3:5b17e4656dd0	1365	/---------------------------------------------------------------------------/
hudakz	3:5b17e4656dd0	1366	/* u8_t uip_flags:
hudakz	3:5b17e4656dd0	1367	*
hudakz	3:5b17e4656dd0	1368	* When the application is called, uip_flags will contain the flags
hudakz	3:5b17e4656dd0	1369	* that are defined in this file. Please read below for more
hudakz	3:5b17e4656dd0	1370	* infomation.
hudakz	3:5b17e4656dd0	1371	*/
hudakz	3:5b17e4656dd0	1372	extern u8_t uip_flags;
hudakz	3:5b17e4656dd0	1373
hudakz	3:5b17e4656dd0	1374	/* The following flags may be set in the global variable uip_flags
hudakz	3:5b17e4656dd0	1375	before calling the application callback. The UIP_ACKDATA,
hudakz	3:5b17e4656dd0	1376	UIP_NEWDATA, and UIP_CLOSE flags may both be set at the same time,
hudakz	3:5b17e4656dd0	1377	whereas the others are mutualy exclusive. Note that these flags
hudakz	3:5b17e4656dd0	1378	should NOT be accessed directly, but only through the uIP
hudakz	3:5b17e4656dd0	1379	functions/macros. */
hudakz	3:5b17e4656dd0	1380
hudakz	3:5b17e4656dd0	1381	#define UIP_ACKDATA 1 /* Signifies that the outstanding data was
hudakz	3:5b17e4656dd0	1382	acked and the application should send
hudakz	3:5b17e4656dd0	1383	out new data instead of retransmitting
hudakz	3:5b17e4656dd0	1384	the last data. */
hudakz	3:5b17e4656dd0	1385
hudakz	3:5b17e4656dd0	1386	#define UIP_NEWDATA 2 /* Flags the fact that the peer has sent
hudakz	3:5b17e4656dd0	1387	us new data. */
hudakz	3:5b17e4656dd0	1388
hudakz	3:5b17e4656dd0	1389	#define UIP_REXMIT 4 /* Tells the application to retransmit the
hudakz	3:5b17e4656dd0	1390	data that was last sent. */
hudakz	3:5b17e4656dd0	1391
hudakz	3:5b17e4656dd0	1392	#define UIP_POLL 8 /* Used for polling the application, to
hudakz	3:5b17e4656dd0	1393	check if the application has data that
hudakz	3:5b17e4656dd0	1394	it wants to send. */
hudakz	3:5b17e4656dd0	1395
hudakz	3:5b17e4656dd0	1396	#define UIP_CLOSE 16 /* The remote host has closed the
hudakz	3:5b17e4656dd0	1397	connection, thus the connection has
hudakz	3:5b17e4656dd0	1398	gone away. Or the application signals
hudakz	3:5b17e4656dd0	1399	that it wants to close the
hudakz	3:5b17e4656dd0	1400	connection. */
hudakz	3:5b17e4656dd0	1401
hudakz	3:5b17e4656dd0	1402	#define UIP_ABORT 32 /* The remote host has aborted the
hudakz	3:5b17e4656dd0	1403	connection, thus the connection has
hudakz	3:5b17e4656dd0	1404	gone away. Or the application signals
hudakz	3:5b17e4656dd0	1405	that it wants to abort the
hudakz	3:5b17e4656dd0	1406	connection. */
hudakz	3:5b17e4656dd0	1407
hudakz	3:5b17e4656dd0	1408	#define UIP_CONNECTED 64 /* We have got a connection from a remote
hudakz	3:5b17e4656dd0	1409	host and have set up a new connection
hudakz	3:5b17e4656dd0	1410	for it, or an active connection has
hudakz	3:5b17e4656dd0	1411	been successfully established. */
hudakz	3:5b17e4656dd0	1412
hudakz	3:5b17e4656dd0	1413	#define UIP_TIMEDOUT 128 /* The connection has been aborted due to
hudakz	3:5b17e4656dd0	1414	too many retransmissions. */
hudakz	3:5b17e4656dd0	1415
hudakz	3:5b17e4656dd0	1416	/* uip_process(flag):
hudakz	3:5b17e4656dd0	1417	*
hudakz	3:5b17e4656dd0	1418	* The actual uIP function which does all the work.
hudakz	3:5b17e4656dd0	1419	*/
hudakz	3:5b17e4656dd0	1420	void uip_process(u8_t flag);
hudakz	3:5b17e4656dd0	1421
hudakz	3:5b17e4656dd0	1422	/* The following flags are passed as an argument to the uip_process()
hudakz	3:5b17e4656dd0	1423	function. They are used to distinguish between the two cases where
hudakz	3:5b17e4656dd0	1424	uip_process() is called. It can be called either because we have
hudakz	3:5b17e4656dd0	1425	incoming data that should be processed, or because the periodic
hudakz	3:5b17e4656dd0	1426	timer has fired. These values are never used directly, but only in
hudakz	3:5b17e4656dd0	1427	the macrose defined in this file. */
hudakz	3:5b17e4656dd0	1428
hudakz	3:5b17e4656dd0	1429	#define UIP_DATA 1 /* Tells uIP that there is incoming
hudakz	3:5b17e4656dd0	1430	data in the uip_buf buffer. The
hudakz	3:5b17e4656dd0	1431	length of the data is stored in the
hudakz	3:5b17e4656dd0	1432	global variable uip_len. */
hudakz	3:5b17e4656dd0	1433
hudakz	3:5b17e4656dd0	1434	#define UIP_TIMER 2 /* Tells uIP that the periodic timer
hudakz	3:5b17e4656dd0	1435	has fired. */
hudakz	3:5b17e4656dd0	1436
hudakz	3:5b17e4656dd0	1437	#define UIP_POLL_REQUEST 3 /* Tells uIP that a connection should
hudakz	3:5b17e4656dd0	1438	be polled. */
hudakz	3:5b17e4656dd0	1439
hudakz	3:5b17e4656dd0	1440	#define UIP_UDP_SEND_CONN 4 /* Tells uIP that a UDP datagram
hudakz	3:5b17e4656dd0	1441	should be constructed in the
hudakz	3:5b17e4656dd0	1442	uip_buf buffer. */
hudakz	3:5b17e4656dd0	1443
hudakz	3:5b17e4656dd0	1444	#if UIP_UDP
hudakz	3:5b17e4656dd0	1445	#define UIP_UDP_TIMER 5
hudakz	3:5b17e4656dd0	1446	#endif /* UIP_UDP */
hudakz	3:5b17e4656dd0	1447
hudakz	3:5b17e4656dd0	1448	/* The TCP states used in the uip_conn->tcpstateflags. */
hudakz	3:5b17e4656dd0	1449
hudakz	3:5b17e4656dd0	1450	#define UIP_CLOSED 0
hudakz	3:5b17e4656dd0	1451	#define UIP_SYN_RCVD 1
hudakz	3:5b17e4656dd0	1452	#define UIP_SYN_SENT 2
hudakz	3:5b17e4656dd0	1453	#define UIP_ESTABLISHED 3
hudakz	3:5b17e4656dd0	1454	#define UIP_FIN_WAIT_1 4
hudakz	3:5b17e4656dd0	1455	#define UIP_FIN_WAIT_2 5
hudakz	3:5b17e4656dd0	1456	#define UIP_CLOSING 6
hudakz	3:5b17e4656dd0	1457	#define UIP_TIME_WAIT 7
hudakz	3:5b17e4656dd0	1458	#define UIP_LAST_ACK 8
hudakz	3:5b17e4656dd0	1459	#define UIP_TS_MASK 15
hudakz	3:5b17e4656dd0	1460
hudakz	3:5b17e4656dd0	1461	#define UIP_STOPPED 16
hudakz	3:5b17e4656dd0	1462
hudakz	3:5b17e4656dd0	1463	/* The TCP and IP headers. */
hudakz	3:5b17e4656dd0	1464	struct uip_tcpip_hdr
hudakz	3:5b17e4656dd0	1465	{
hudakz	3:5b17e4656dd0	1466	#if UIP_CONF_IPV6
hudakz	3:5b17e4656dd0	1467	/* IPv6 header. */
hudakz	3:5b17e4656dd0	1468	u8_t vtc, tcflow;
hudakz	3:5b17e4656dd0	1469	u16_t flow;
hudakz	3:5b17e4656dd0	1470	u8_t len[2];
hudakz	3:5b17e4656dd0	1471	u8_t proto, ttl;
hudakz	3:5b17e4656dd0	1472	uip_ip6addr_t srcipaddr, destipaddr;
hudakz	3:5b17e4656dd0	1473	#else /* UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	1474	/* IPv4 header. */
hudakz	3:5b17e4656dd0	1475
hudakz	3:5b17e4656dd0	1476	u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
hudakz	3:5b17e4656dd0	1477	u16_t ipchksum;
hudakz	3:5b17e4656dd0	1478	u16_t srcipaddr[2], destipaddr[2];
hudakz	3:5b17e4656dd0	1479	#endif /* UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	1480
hudakz	3:5b17e4656dd0	1481	/* TCP header. */
hudakz	3:5b17e4656dd0	1482
hudakz	3:5b17e4656dd0	1483	u16_t srcport, destport;
hudakz	3:5b17e4656dd0	1484	u8_t seqno[4], ackno[4], tcpoffset, flags, wnd[2];
hudakz	3:5b17e4656dd0	1485	u16_t tcpchksum;
hudakz	3:5b17e4656dd0	1486	u8_t urgp[2];
hudakz	3:5b17e4656dd0	1487	u8_t optdata[4];
hudakz	3:5b17e4656dd0	1488	};
hudakz	3:5b17e4656dd0	1489
hudakz	3:5b17e4656dd0	1490	/* The ICMP and IP headers. */
hudakz	3:5b17e4656dd0	1491	struct uip_icmpip_hdr
hudakz	3:5b17e4656dd0	1492	{
hudakz	3:5b17e4656dd0	1493	#if UIP_CONF_IPV6
hudakz	3:5b17e4656dd0	1494	/* IPv6 header. */
hudakz	3:5b17e4656dd0	1495	u8_t vtc, tcf;
hudakz	3:5b17e4656dd0	1496	u16_t flow;
hudakz	3:5b17e4656dd0	1497	u8_t len[2];
hudakz	3:5b17e4656dd0	1498	u8_t proto, ttl;
hudakz	3:5b17e4656dd0	1499	uip_ip6addr_t srcipaddr, destipaddr;
hudakz	3:5b17e4656dd0	1500	#else /* UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	1501	/* IPv4 header. */
hudakz	3:5b17e4656dd0	1502
hudakz	3:5b17e4656dd0	1503	u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
hudakz	3:5b17e4656dd0	1504	u16_t ipchksum;
hudakz	3:5b17e4656dd0	1505	u16_t srcipaddr[2], destipaddr[2];
hudakz	3:5b17e4656dd0	1506	#endif /* UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	1507
hudakz	3:5b17e4656dd0	1508	/* ICMP (echo) header. */
hudakz	3:5b17e4656dd0	1509
hudakz	3:5b17e4656dd0	1510	u8_t type, icode;
hudakz	3:5b17e4656dd0	1511	u16_t icmpchksum;
hudakz	3:5b17e4656dd0	1512	#if !UIP_CONF_IPV6
hudakz	3:5b17e4656dd0	1513	u16_t id, seqno;
hudakz	3:5b17e4656dd0	1514	#else /* !UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	1515	u8_t flags, reserved1, reserved2, reserved3;
hudakz	3:5b17e4656dd0	1516	u8_t icmp6data[16];
hudakz	3:5b17e4656dd0	1517	u8_t options[1];
hudakz	3:5b17e4656dd0	1518	#endif /* !UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	1519	};
hudakz	3:5b17e4656dd0	1520
hudakz	3:5b17e4656dd0	1521	/* The UDP and IP headers. */
hudakz	3:5b17e4656dd0	1522	struct uip_udpip_hdr
hudakz	3:5b17e4656dd0	1523	{
hudakz	3:5b17e4656dd0	1524	#if UIP_CONF_IPV6
hudakz	3:5b17e4656dd0	1525	/* IPv6 header. */
hudakz	3:5b17e4656dd0	1526	u8_t vtc, tcf;
hudakz	3:5b17e4656dd0	1527	u16_t flow;
hudakz	3:5b17e4656dd0	1528	u8_t len[2];
hudakz	3:5b17e4656dd0	1529	u8_t proto, ttl;
hudakz	3:5b17e4656dd0	1530	uip_ip6addr_t srcipaddr, destipaddr;
hudakz	3:5b17e4656dd0	1531	#else /* UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	1532	/* IP header. */
hudakz	3:5b17e4656dd0	1533
hudakz	3:5b17e4656dd0	1534	u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
hudakz	3:5b17e4656dd0	1535	u16_t ipchksum;
hudakz	3:5b17e4656dd0	1536	u16_t srcipaddr[2], destipaddr[2];
hudakz	3:5b17e4656dd0	1537	#endif /* UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	1538
hudakz	3:5b17e4656dd0	1539	/* UDP header. */
hudakz	3:5b17e4656dd0	1540
hudakz	3:5b17e4656dd0	1541	u16_t srcport, destport;
hudakz	3:5b17e4656dd0	1542	u16_t udplen;
hudakz	3:5b17e4656dd0	1543	u16_t udpchksum;
hudakz	3:5b17e4656dd0	1544	};
hudakz	3:5b17e4656dd0	1545
hudakz	3:5b17e4656dd0	1546	/**
hudakz	3:5b17e4656dd0	1547	* The buffer size available for user data in the \ref uip_buf buffer.
hudakz	3:5b17e4656dd0	1548	*
hudakz	3:5b17e4656dd0	1549	* This macro holds the available size for user data in the \ref
hudakz	3:5b17e4656dd0	1550	* uip_buf buffer. The macro is intended to be used for checking
hudakz	3:5b17e4656dd0	1551	* bounds of available user data.
hudakz	3:5b17e4656dd0	1552	*
hudakz	3:5b17e4656dd0	1553	* Example:
hudakz	3:5b17e4656dd0	1554	\code
hudakz	3:5b17e4656dd0	1555	snprintf(uip_appdata, UIP_APPDATA_SIZE, "%u\n", i);
hudakz	3:5b17e4656dd0	1556	\endcode
hudakz	3:5b17e4656dd0	1557	*
hudakz	3:5b17e4656dd0	1558	* \hideinitializer
hudakz	3:5b17e4656dd0	1559	*/
hudakz	3:5b17e4656dd0	1560	#define UIP_APPDATA_SIZE (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN)
hudakz	3:5b17e4656dd0	1561	#define UIP_PROTO_ICMP 1
hudakz	3:5b17e4656dd0	1562	#define UIP_PROTO_TCP 6
hudakz	3:5b17e4656dd0	1563	#define UIP_PROTO_UDP 17
hudakz	3:5b17e4656dd0	1564	#define UIP_PROTO_ICMP6 58
hudakz	3:5b17e4656dd0	1565
hudakz	3:5b17e4656dd0	1566	/* Header sizes. */
hudakz	3:5b17e4656dd0	1567
hudakz	3:5b17e4656dd0	1568	#if UIP_CONF_IPV6
hudakz	3:5b17e4656dd0	1569	#define UIP_IPH_LEN 40
hudakz	3:5b17e4656dd0	1570	#else /* UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	1571
hudakz	3:5b17e4656dd0	1572	#define UIP_IPH_LEN 20 /* Size of IP header */
hudakz	3:5b17e4656dd0	1573	#endif /* UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	1574
hudakz	3:5b17e4656dd0	1575	#define UIP_UDPH_LEN 8 /* Size of UDP header */
hudakz	3:5b17e4656dd0	1576
hudakz	3:5b17e4656dd0	1577	#define UIP_TCPH_LEN 20 /* Size of TCP header */
hudakz	3:5b17e4656dd0	1578
hudakz	3:5b17e4656dd0	1579	#define UIP_IPUDPH_LEN (UIP_UDPH_LEN + UIP_IPH_LEN) /* Size of IP +
hudakz	3:5b17e4656dd0	1580	UDP
hudakz	3:5b17e4656dd0	1581	header */
hudakz	3:5b17e4656dd0	1582
hudakz	3:5b17e4656dd0	1583	#define UIP_IPTCPH_LEN (UIP_TCPH_LEN + UIP_IPH_LEN) /* Size of IP +
hudakz	3:5b17e4656dd0	1584	TCP
hudakz	3:5b17e4656dd0	1585	header */
hudakz	3:5b17e4656dd0	1586
hudakz	3:5b17e4656dd0	1587	#define UIP_TCPIP_HLEN UIP_IPTCPH_LEN
hudakz	3:5b17e4656dd0	1588
hudakz	3:5b17e4656dd0	1589	#if UIP_FIXEDADDR
hudakz	3:5b17e4656dd0	1590	extern const uip_ipaddr_t uip_hostaddr, uip_netmask, uip_draddr;
hudakz	3:5b17e4656dd0	1591	#else /* UIP_FIXEDADDR */
hudakz	3:5b17e4656dd0	1592
hudakz	3:5b17e4656dd0	1593	extern uip_ipaddr_t uip_hostaddr, uip_netmask, uip_draddr;
hudakz	3:5b17e4656dd0	1594	#endif /* UIP_FIXEDADDR */
hudakz	3:5b17e4656dd0	1595
hudakz	3:5b17e4656dd0	1596	/**
hudakz	3:5b17e4656dd0	1597	* Representation of a 48-bit Ethernet address.
hudakz	3:5b17e4656dd0	1598	*/
hudakz	3:5b17e4656dd0	1599
hudakz	3:5b17e4656dd0	1600	struct uip_eth_addr
hudakz	3:5b17e4656dd0	1601	{
hudakz	3:5b17e4656dd0	1602	u8_t addr[6];
hudakz	3:5b17e4656dd0	1603	};
hudakz	3:5b17e4656dd0	1604
hudakz	3:5b17e4656dd0	1605	/**
hudakz	3:5b17e4656dd0	1606	* Calculate the Internet checksum over a buffer.
hudakz	3:5b17e4656dd0	1607	*
hudakz	3:5b17e4656dd0	1608	* The Internet checksum is the one's complement of the one's
hudakz	3:5b17e4656dd0	1609	* complement sum of all 16-bit words in the buffer.
hudakz	3:5b17e4656dd0	1610	*
hudakz	3:5b17e4656dd0	1611	* See RFC1071.
hudakz	3:5b17e4656dd0	1612	*
hudakz	3:5b17e4656dd0	1613	* \param buf A pointer to the buffer over which the checksum is to be
hudakz	3:5b17e4656dd0	1614	* computed.
hudakz	3:5b17e4656dd0	1615	*
hudakz	3:5b17e4656dd0	1616	* \param len The length of the buffer over which the checksum is to
hudakz	3:5b17e4656dd0	1617	* be computed.
hudakz	3:5b17e4656dd0	1618	*
hudakz	3:5b17e4656dd0	1619	* \return The Internet checksum of the buffer.
hudakz	3:5b17e4656dd0	1620	*/
hudakz	3:5b17e4656dd0	1621	u16_t uip_chksum(u16_t* buf, u16_t len);
hudakz	3:5b17e4656dd0	1622
hudakz	3:5b17e4656dd0	1623	/**
hudakz	3:5b17e4656dd0	1624	* Calculate the IP header checksum of the packet header in uip_buf.
hudakz	3:5b17e4656dd0	1625	*
hudakz	3:5b17e4656dd0	1626	* The IP header checksum is the Internet checksum of the 20 bytes of
hudakz	3:5b17e4656dd0	1627	* the IP header.
hudakz	3:5b17e4656dd0	1628	*
hudakz	3:5b17e4656dd0	1629	* \return The IP header checksum of the IP header in the uip_buf
hudakz	3:5b17e4656dd0	1630	* buffer.
hudakz	3:5b17e4656dd0	1631	*/
hudakz	3:5b17e4656dd0	1632	u16_t uip_ipchksum(void);
hudakz	3:5b17e4656dd0	1633
hudakz	3:5b17e4656dd0	1634	/**
hudakz	3:5b17e4656dd0	1635	* Calculate the TCP checksum of the packet in uip_buf and uip_appdata.
hudakz	3:5b17e4656dd0	1636	*
hudakz	3:5b17e4656dd0	1637	* The TCP checksum is the Internet checksum of data contents of the
hudakz	3:5b17e4656dd0	1638	* TCP segment, and a pseudo-header as defined in RFC793.
hudakz	3:5b17e4656dd0	1639	*
hudakz	3:5b17e4656dd0	1640	* \return The TCP checksum of the TCP segment in uip_buf and pointed
hudakz	3:5b17e4656dd0	1641	* to by uip_appdata.
hudakz	3:5b17e4656dd0	1642	*/
hudakz	3:5b17e4656dd0	1643	u16_t uip_tcpchksum(void);
hudakz	3:5b17e4656dd0	1644
hudakz	3:5b17e4656dd0	1645	/**
hudakz	3:5b17e4656dd0	1646	* Calculate the UDP checksum of the packet in uip_buf and uip_appdata.
hudakz	3:5b17e4656dd0	1647	*
hudakz	3:5b17e4656dd0	1648	* The UDP checksum is the Internet checksum of data contents of the
hudakz	3:5b17e4656dd0	1649	* UDP segment, and a pseudo-header as defined in RFC768.
hudakz	3:5b17e4656dd0	1650	*
hudakz	3:5b17e4656dd0	1651	* \return The UDP checksum of the UDP segment in uip_buf and pointed
hudakz	3:5b17e4656dd0	1652	* to by uip_appdata.
hudakz	3:5b17e4656dd0	1653	*/
hudakz	3:5b17e4656dd0	1654	u16_t uip_udpchksum(void);
hudakz	3:5b17e4656dd0	1655	#endif /* __UIP_H__ */
hudakz	3:5b17e4656dd0	1656
hudakz	3:5b17e4656dd0	1657	/** @} */

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Type:	Library
Created:	24 Sep 2020
Imports:	1
Forks:	0
Commits:	23
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utility/uip.h@3:5b17e4656dd0, 2014-12-20 (annotated)

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