UIPEthernet - Fork for fixes

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utility/uip.h@9:a156d3de5647, 2019-08-27 (annotated)

Committer:: hudakz
Date:: Tue Aug 27 15:01:10 2019 +0000
Revision:: 9:a156d3de5647
Parent:: 8:4acb22344932
Child:: 11:647d53d146f1

Mbed OS 5 support added and API modified.

Who changed what in which revision?

User	Revision	Line number	New contents of line
hudakz	3:5b17e4656dd0	1
hudakz	8:4acb22344932	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	8:4acb22344932	9	* Header file for the UIP TCP/IP stack.
hudakz	3:5b17e4656dd0	10	* \author Adam Dunkels <adam@dunkels.com>
hudakz	3:5b17e4656dd0	11	*
hudakz	8:4acb22344932	12	* The UIP TCP/IP stack header file contains definitions for a number
hudakz	8:4acb22344932	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	8:4acb22344932	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	4:d774541a34da	51	#define __UIP_H__
hudakz	3:5b17e4656dd0	52
hudakz	4:d774541a34da	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	8:4acb22344932	59
hudakz	3:5b17e4656dd0	60	typedef u16_t uip_ip4addr_t[2];
hudakz	8:4acb22344932	61	typedef u16_t uip_ip6addr_t[8];
hudakz	4:d774541a34da	62	#if UIP_CONF_IPV6
hudakz	8:4acb22344932	63	typedef uip_ip6addr_t uip_ipaddr_t;
hudakz	4:d774541a34da	64	#else /* UIP_CONF_IPV6 */
hudakz	8:4acb22344932	65
hudakz	8:4acb22344932	66	typedef uip_ip4addr_t uip_ipaddr_t;
hudakz	4:d774541a34da	67	#endif /* UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	68
hudakz	3:5b17e4656dd0	69	/---------------------------------------------------------------------------/
hudakz	8:4acb22344932	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	8:4acb22344932	76	* \defgroup uipconffunc UIP configuration functions
hudakz	3:5b17e4656dd0	77	* @{
hudakz	3:5b17e4656dd0	78	*
hudakz	8:4acb22344932	79	* The UIP configuration functions are used for setting run-time
hudakz	8:4acb22344932	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	4:d774541a34da	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	8:4acb22344932	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	8:4acb22344932	125
hudakz	8:4acb22344932	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	8:4acb22344932	138
hudakz	4:d774541a34da	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	8:4acb22344932	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	8:4acb22344932	162
hudakz	4:d774541a34da	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	8:4acb22344932	173
hudakz	8:4acb22344932	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	8:4acb22344932	179	* \defgroup uipinit UIP initialization functions
hudakz	3:5b17e4656dd0	180	* @{
hudakz	3:5b17e4656dd0	181	*
hudakz	8:4acb22344932	182	* The UIP initialization functions are used for booting UIP.
hudakz	3:5b17e4656dd0	183	*/
hudakz	8:4acb22344932	184	/**
hudakz	8:4acb22344932	185	* UIP initialization function.
hudakz	8:4acb22344932	186	*
hudakz	8:4acb22344932	187	* This function should be called at boot up to initilize the UIP
hudakz	8:4acb22344932	188	* TCP/IP stack.
hudakz	8:4acb22344932	189	*/
hudakz	8:4acb22344932	190	void uip_init(void);
hudakz	4:d774541a34da	191
hudakz	3:5b17e4656dd0	192	/**
hudakz	8:4acb22344932	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	8:4acb22344932	197	void uip_setipid(u16_t id);
hudakz	3:5b17e4656dd0	198
hudakz	3:5b17e4656dd0	199	/** @} */
hudakz	3:5b17e4656dd0	200
hudakz	3:5b17e4656dd0	201	/**
hudakz	8:4acb22344932	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	8:4acb22344932	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	8:4acb22344932	234	* \note If you are writing a UIP device driver that needs ARP
hudakz	8:4acb22344932	235	* (Address Resolution Protocol), e.g., when running UIP over
hudakz	8:4acb22344932	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	4:d774541a34da	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	4:d774541a34da	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	8:4acb22344932	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	8:4acb22344932	265	* polling) for a UIP TCP conneciton, and should be called when the
hudakz	8:4acb22344932	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	8:4acb22344932	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	8:4acb22344932	285	* \note If you are writing a UIP device driver that needs ARP
hudakz	8:4acb22344932	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	8:4acb22344932	303
hudakz	8:4acb22344932	304	#define uip_periodic(conn) \
hudakz	8:4acb22344932	305	do { \
hudakz	8:4acb22344932	306	uip_conn = &uip_conns[conn]; \
hudakz	8:4acb22344932	307	uip_process(UIP_TIMER); \
hudakz	8:4acb22344932	308	} while (0)
hudakz	3:5b17e4656dd0	309
hudakz	3:5b17e4656dd0	310	/**
hudakz	3:5b17e4656dd0	311	*
hudakz	3:5b17e4656dd0	312	*
hudakz	3:5b17e4656dd0	313	*/
hudakz	8:4acb22344932	314
hudakz	8:4acb22344932	315	#define uip_conn_active(conn) (uip_conns[conn].tcpstateflags != UIP_CLOSED)
hudakz	3:5b17e4656dd0	316
hudakz	3:5b17e4656dd0	317	/**
hudakz	3:5b17e4656dd0	318	* Perform periodic processing for a connection identified by a pointer
hudakz	3:5b17e4656dd0	319	* to its structure.
hudakz	3:5b17e4656dd0	320	*
hudakz	3:5b17e4656dd0	321	* Same as uip_periodic() but takes a pointer to the actual uip_conn
hudakz	3:5b17e4656dd0	322	* struct instead of an integer as its argument. This function can be
hudakz	3:5b17e4656dd0	323	* used to force periodic processing of a specific connection.
hudakz	3:5b17e4656dd0	324	*
hudakz	3:5b17e4656dd0	325	* \param conn A pointer to the uip_conn struct for the connection to
hudakz	3:5b17e4656dd0	326	* be processed.
hudakz	3:5b17e4656dd0	327	*
hudakz	3:5b17e4656dd0	328	* \hideinitializer
hudakz	3:5b17e4656dd0	329	*/
hudakz	8:4acb22344932	330
hudakz	8:4acb22344932	331	#define uip_periodic_conn(conn) \
hudakz	8:4acb22344932	332	do { \
hudakz	8:4acb22344932	333	uip_conn = conn; \
hudakz	8:4acb22344932	334	uip_process(UIP_TIMER); \
hudakz	8:4acb22344932	335	} while (0)
hudakz	3:5b17e4656dd0	336
hudakz	3:5b17e4656dd0	337	/**
hudakz	3:5b17e4656dd0	338	* Reuqest that a particular connection should be polled.
hudakz	3:5b17e4656dd0	339	*
hudakz	3:5b17e4656dd0	340	* Similar to uip_periodic_conn() but does not perform any timer
hudakz	3:5b17e4656dd0	341	* processing. The application is polled for new data.
hudakz	3:5b17e4656dd0	342	*
hudakz	3:5b17e4656dd0	343	* \param conn A pointer to the uip_conn struct for the connection to
hudakz	3:5b17e4656dd0	344	* be processed.
hudakz	3:5b17e4656dd0	345	*
hudakz	3:5b17e4656dd0	346	* \hideinitializer
hudakz	3:5b17e4656dd0	347	*/
hudakz	3:5b17e4656dd0	348
hudakz	8:4acb22344932	349	#define uip_poll_conn(conn) \
hudakz	8:4acb22344932	350	do { \
hudakz	8:4acb22344932	351	uip_conn = conn; \
hudakz	8:4acb22344932	352	uip_process(UIP_POLL_REQUEST); \
hudakz	8:4acb22344932	353	} while (0)
hudakz	8:4acb22344932	354	#if UIP_UDP
hudakz	3:5b17e4656dd0	355
hudakz	3:5b17e4656dd0	356	/**
hudakz	3:5b17e4656dd0	357	* Periodic processing for a UDP connection identified by its number.
hudakz	3:5b17e4656dd0	358	*
hudakz	3:5b17e4656dd0	359	* This function is essentially the same as uip_periodic(), but for
hudakz	3:5b17e4656dd0	360	* UDP connections. It is called in a similar fashion as the
hudakz	3:5b17e4656dd0	361	* uip_periodic() function:
hudakz	3:5b17e4656dd0	362	\code
hudakz	3:5b17e4656dd0	363	for(i = 0; i < UIP_UDP_CONNS; i++) {
hudakz	3:5b17e4656dd0	364	uip_udp_periodic(i);
hudakz	3:5b17e4656dd0	365	if(uip_len > 0) {
hudakz	3:5b17e4656dd0	366	devicedriver_send();
hudakz	3:5b17e4656dd0	367	}
hudakz	3:5b17e4656dd0	368	}
hudakz	3:5b17e4656dd0	369	\endcode
hudakz	3:5b17e4656dd0	370	*
hudakz	3:5b17e4656dd0	371	* \note As for the uip_periodic() function, special care has to be
hudakz	8:4acb22344932	372	* taken when using UIP together with ARP and Ethernet:
hudakz	3:5b17e4656dd0	373	\code
hudakz	3:5b17e4656dd0	374	for(i = 0; i < UIP_UDP_CONNS; i++) {
hudakz	3:5b17e4656dd0	375	uip_udp_periodic(i);
hudakz	3:5b17e4656dd0	376	if(uip_len > 0) {
hudakz	3:5b17e4656dd0	377	uip_arp_out();
hudakz	3:5b17e4656dd0	378	ethernet_devicedriver_send();
hudakz	3:5b17e4656dd0	379	}
hudakz	3:5b17e4656dd0	380	}
hudakz	3:5b17e4656dd0	381	\endcode
hudakz	3:5b17e4656dd0	382	*
hudakz	3:5b17e4656dd0	383	* \param conn The number of the UDP connection to be processed.
hudakz	3:5b17e4656dd0	384	*
hudakz	3:5b17e4656dd0	385	* \hideinitializer
hudakz	3:5b17e4656dd0	386	*/
hudakz	8:4acb22344932	387
hudakz	8:4acb22344932	388	#define uip_udp_periodic(conn) \
hudakz	8:4acb22344932	389	do { \
hudakz	8:4acb22344932	390	uip_udp_conn = &uip_udp_conns[conn]; \
hudakz	8:4acb22344932	391	uip_process(UIP_UDP_TIMER); \
hudakz	8:4acb22344932	392	} while (0)
hudakz	3:5b17e4656dd0	393
hudakz	3:5b17e4656dd0	394	/**
hudakz	3:5b17e4656dd0	395	* Periodic processing for a UDP connection identified by a pointer to
hudakz	3:5b17e4656dd0	396	* its structure.
hudakz	3:5b17e4656dd0	397	*
hudakz	3:5b17e4656dd0	398	* Same as uip_udp_periodic() but takes a pointer to the actual
hudakz	3:5b17e4656dd0	399	* uip_conn struct instead of an integer as its argument. This
hudakz	3:5b17e4656dd0	400	* function can be used to force periodic processing of a specific
hudakz	3:5b17e4656dd0	401	* connection.
hudakz	3:5b17e4656dd0	402	*
hudakz	3:5b17e4656dd0	403	* \param conn A pointer to the uip_udp_conn struct for the connection
hudakz	3:5b17e4656dd0	404	* to be processed.
hudakz	3:5b17e4656dd0	405	*
hudakz	3:5b17e4656dd0	406	* \hideinitializer
hudakz	3:5b17e4656dd0	407	*/
hudakz	3:5b17e4656dd0	408
hudakz	8:4acb22344932	409	#define uip_udp_periodic_conn(conn) \
hudakz	8:4acb22344932	410	do { \
hudakz	8:4acb22344932	411	uip_udp_conn = conn; \
hudakz	8:4acb22344932	412	uip_process(UIP_UDP_TIMER); \
hudakz	8:4acb22344932	413	} while (0)
hudakz	4:d774541a34da	414	#endif /* UIP_UDP */
hudakz	4:d774541a34da	415
hudakz	8:4acb22344932	416	/**
hudakz	8:4acb22344932	417	* The UIP packet buffer.
hudakz	3:5b17e4656dd0	418	*
hudakz	3:5b17e4656dd0	419	* The uip_buf array is used to hold incoming and outgoing
hudakz	3:5b17e4656dd0	420	* packets. The device driver should place incoming data into this
hudakz	3:5b17e4656dd0	421	* buffer. When sending data, the device driver should read the link
hudakz	3:5b17e4656dd0	422	* level headers and the TCP/IP headers from this buffer. The size of
hudakz	3:5b17e4656dd0	423	* the link level headers is configured by the UIP_LLH_LEN define.
hudakz	3:5b17e4656dd0	424	*
hudakz	3:5b17e4656dd0	425	* \note The application data need not be placed in this buffer, so
hudakz	3:5b17e4656dd0	426	* the device driver must read it from the place pointed to by the
hudakz	3:5b17e4656dd0	427	* uip_appdata pointer as illustrated by the following example:
hudakz	3:5b17e4656dd0	428	\code
hudakz	3:5b17e4656dd0	429	void
hudakz	3:5b17e4656dd0	430	devicedriver_send(void)
hudakz	3:5b17e4656dd0	431	{
hudakz	3:5b17e4656dd0	432	hwsend(&uip_buf[0], UIP_LLH_LEN);
hudakz	3:5b17e4656dd0	433	if(uip_len <= UIP_LLH_LEN + UIP_TCPIP_HLEN) {
hudakz	3:5b17e4656dd0	434	hwsend(&uip_buf[UIP_LLH_LEN], uip_len - UIP_LLH_LEN);
hudakz	3:5b17e4656dd0	435	} else {
hudakz	3:5b17e4656dd0	436	hwsend(&uip_buf[UIP_LLH_LEN], UIP_TCPIP_HLEN);
hudakz	3:5b17e4656dd0	437	hwsend(uip_appdata, uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN);
hudakz	3:5b17e4656dd0	438	}
hudakz	3:5b17e4656dd0	439	}
hudakz	3:5b17e4656dd0	440	\endcode
hudakz	3:5b17e4656dd0	441	*/
hudakz	8:4acb22344932	442	extern u8_t uip_buf[UIP_BUFSIZE + 2];
hudakz	3:5b17e4656dd0	443
hudakz	3:5b17e4656dd0	444	/** @} */
hudakz	3:5b17e4656dd0	445
hudakz	3:5b17e4656dd0	446	/---------------------------------------------------------------------------/
hudakz	8:4acb22344932	447	/* Functions that are used by the UIP application program. Opening and
hudakz	3:5b17e4656dd0	448	* closing connections, sending and receiving data, etc. is all
hudakz	3:5b17e4656dd0	449	* handled by the functions below.
hudakz	3:5b17e4656dd0	450	*/
hudakz	3:5b17e4656dd0	451	/**
hudakz	8:4acb22344932	452	* \defgroup uipappfunc UIP application functions
hudakz	3:5b17e4656dd0	453	* @{
hudakz	3:5b17e4656dd0	454	*
hudakz	8:4acb22344932	455	* Functions used by an application running of top of UIP.
hudakz	3:5b17e4656dd0	456	*/
hudakz	3:5b17e4656dd0	457	/**
hudakz	3:5b17e4656dd0	458	* Start listening to the specified port.
hudakz	3:5b17e4656dd0	459	*
hudakz	3:5b17e4656dd0	460	* \note Since this function expects the port number in network byte
hudakz	3:5b17e4656dd0	461	* order, a conversion using HTONS() or htons() is necessary.
hudakz	3:5b17e4656dd0	462	*
hudakz	3:5b17e4656dd0	463	\code
hudakz	3:5b17e4656dd0	464	uip_listen(HTONS(80));
hudakz	3:5b17e4656dd0	465	\endcode
hudakz	3:5b17e4656dd0	466	*
hudakz	3:5b17e4656dd0	467	* \param port A 16-bit port number in network byte order.
hudakz	3:5b17e4656dd0	468	*/
hudakz	8:4acb22344932	469	void uip_listen(u16_t port);
hudakz	3:5b17e4656dd0	470
hudakz	3:5b17e4656dd0	471	/**
hudakz	3:5b17e4656dd0	472	* Stop listening to the specified port.
hudakz	3:5b17e4656dd0	473	*
hudakz	3:5b17e4656dd0	474	* \note Since this function expects the port number in network byte
hudakz	3:5b17e4656dd0	475	* order, a conversion using HTONS() or htons() is necessary.
hudakz	3:5b17e4656dd0	476	*
hudakz	3:5b17e4656dd0	477	\code
hudakz	3:5b17e4656dd0	478	uip_unlisten(HTONS(80));
hudakz	3:5b17e4656dd0	479	\endcode
hudakz	3:5b17e4656dd0	480	*
hudakz	3:5b17e4656dd0	481	* \param port A 16-bit port number in network byte order.
hudakz	3:5b17e4656dd0	482	*/
hudakz	8:4acb22344932	483	void uip_unlisten(u16_t port);
hudakz	3:5b17e4656dd0	484
hudakz	3:5b17e4656dd0	485	/**
hudakz	3:5b17e4656dd0	486	* Connect to a remote host using TCP.
hudakz	3:5b17e4656dd0	487	*
hudakz	3:5b17e4656dd0	488	* This function is used to start a new connection to the specified
hudakz	3:5b17e4656dd0	489	* port on the specied host. It allocates a new connection identifier,
hudakz	3:5b17e4656dd0	490	* sets the connection to the SYN_SENT state and sets the
hudakz	3:5b17e4656dd0	491	* retransmission timer to 0. This will cause a TCP SYN segment to be
hudakz	3:5b17e4656dd0	492	* sent out the next time this connection is periodically processed,
hudakz	3:5b17e4656dd0	493	* which usually is done within 0.5 seconds after the call to
hudakz	3:5b17e4656dd0	494	* uip_connect().
hudakz	3:5b17e4656dd0	495	*
hudakz	3:5b17e4656dd0	496	* \note This function is avaliable only if support for active open
hudakz	3:5b17e4656dd0	497	* has been configured by defining UIP_ACTIVE_OPEN to 1 in uipopt.h.
hudakz	3:5b17e4656dd0	498	*
hudakz	3:5b17e4656dd0	499	* \note Since this function requires the port number to be in network
hudakz	3:5b17e4656dd0	500	* byte order, a conversion using HTONS() or htons() is necessary.
hudakz	3:5b17e4656dd0	501	*
hudakz	3:5b17e4656dd0	502	\code
hudakz	3:5b17e4656dd0	503	uip_ipaddr_t ipaddr;
hudakz	3:5b17e4656dd0	504
hudakz	3:5b17e4656dd0	505	uip_ipaddr(&ipaddr, 192,168,1,2);
hudakz	3:5b17e4656dd0	506	uip_connect(&ipaddr, HTONS(80));
hudakz	3:5b17e4656dd0	507	\endcode
hudakz	3:5b17e4656dd0	508	*
hudakz	3:5b17e4656dd0	509	* \param ripaddr The IP address of the remote hot.
hudakz	3:5b17e4656dd0	510	*
hudakz	3:5b17e4656dd0	511	* \param port A 16-bit port number in network byte order.
hudakz	3:5b17e4656dd0	512	*
hudakz	8:4acb22344932	513	* \return A pointer to the UIP connection identifier for the new connection,
hudakz	3:5b17e4656dd0	514	* or NULL if no connection could be allocated.
hudakz	3:5b17e4656dd0	515	*
hudakz	3:5b17e4656dd0	516	*/
hudakz	8:4acb22344932	517	struct uip_conn* uip_connect(uip_ipaddr_t* ripaddr, u16_t port);
hudakz	3:5b17e4656dd0	518
hudakz	3:5b17e4656dd0	519	/**
hudakz	3:5b17e4656dd0	520	* \internal
hudakz	3:5b17e4656dd0	521	*
hudakz	3:5b17e4656dd0	522	* Check if a connection has outstanding (i.e., unacknowledged) data.
hudakz	3:5b17e4656dd0	523	*
hudakz	3:5b17e4656dd0	524	* \param conn A pointer to the uip_conn structure for the connection.
hudakz	3:5b17e4656dd0	525	*
hudakz	3:5b17e4656dd0	526	* \hideinitializer
hudakz	3:5b17e4656dd0	527	*/
hudakz	8:4acb22344932	528
hudakz	8:4acb22344932	529	#define uip_outstanding(conn) ((conn)->len)
hudakz	3:5b17e4656dd0	530
hudakz	3:5b17e4656dd0	531	/**
hudakz	3:5b17e4656dd0	532	* Send data on the current connection.
hudakz	3:5b17e4656dd0	533	*
hudakz	3:5b17e4656dd0	534	* This function is used to send out a single segment of TCP
hudakz	8:4acb22344932	535	* data. Only applications that have been invoked by UIP for event
hudakz	3:5b17e4656dd0	536	* processing can send data.
hudakz	3:5b17e4656dd0	537	*
hudakz	3:5b17e4656dd0	538	* The amount of data that actually is sent out after a call to this
hudakz	8:4acb22344932	539	* funcion is determined by the maximum amount of data TCP allows. UIP
hudakz	3:5b17e4656dd0	540	* will automatically crop the data so that only the appropriate
hudakz	3:5b17e4656dd0	541	* amount of data is sent. The function uip_mss() can be used to query
hudakz	8:4acb22344932	542	* UIP for the amount of data that actually will be sent.
hudakz	3:5b17e4656dd0	543	*
hudakz	3:5b17e4656dd0	544	* \note This function does not guarantee that the sent data will
hudakz	3:5b17e4656dd0	545	* arrive at the destination. If the data is lost in the network, the
hudakz	3:5b17e4656dd0	546	* application will be invoked with the uip_rexmit() event being
hudakz	3:5b17e4656dd0	547	* set. The application will then have to resend the data using this
hudakz	3:5b17e4656dd0	548	* function.
hudakz	3:5b17e4656dd0	549	*
hudakz	3:5b17e4656dd0	550	* \param data A pointer to the data which is to be sent.
hudakz	3:5b17e4656dd0	551	*
hudakz	3:5b17e4656dd0	552	* \param len The maximum amount of data bytes to be sent.
hudakz	3:5b17e4656dd0	553	*
hudakz	3:5b17e4656dd0	554	* \hideinitializer
hudakz	3:5b17e4656dd0	555	*/
hudakz	8:4acb22344932	556	void uip_send(const void* data, int len);
hudakz	3:5b17e4656dd0	557
hudakz	3:5b17e4656dd0	558	/**
hudakz	3:5b17e4656dd0	559	* The length of any incoming data that is currently avaliable (if avaliable)
hudakz	3:5b17e4656dd0	560	* in the uip_appdata buffer.
hudakz	3:5b17e4656dd0	561	*
hudakz	3:5b17e4656dd0	562	* The test function uip_data() must first be used to check if there
hudakz	3:5b17e4656dd0	563	* is any data available at all.
hudakz	3:5b17e4656dd0	564	*
hudakz	3:5b17e4656dd0	565	* \hideinitializer
hudakz	3:5b17e4656dd0	566	*/
hudakz	8:4acb22344932	567
hudakz	3:5b17e4656dd0	568	/void uip_datalen(void);/
hudakz	8:4acb22344932	569	#define uip_datalen() uip_len
hudakz	3:5b17e4656dd0	570
hudakz	3:5b17e4656dd0	571	/**
hudakz	3:5b17e4656dd0	572	* The length of any out-of-band data (urgent data) that has arrived
hudakz	3:5b17e4656dd0	573	* on the connection.
hudakz	3:5b17e4656dd0	574	*
hudakz	3:5b17e4656dd0	575	* \note The configuration parameter UIP_URGDATA must be set for this
hudakz	3:5b17e4656dd0	576	* function to be enabled.
hudakz	3:5b17e4656dd0	577	*
hudakz	3:5b17e4656dd0	578	* \hideinitializer
hudakz	3:5b17e4656dd0	579	*/
hudakz	8:4acb22344932	580
hudakz	4:d774541a34da	581	#define uip_urgdatalen() uip_urglen
hudakz	3:5b17e4656dd0	582
hudakz	3:5b17e4656dd0	583	/**
hudakz	3:5b17e4656dd0	584	* Close the current connection.
hudakz	3:5b17e4656dd0	585	*
hudakz	3:5b17e4656dd0	586	* This function will close the current connection in a nice way.
hudakz	3:5b17e4656dd0	587	*
hudakz	3:5b17e4656dd0	588	* \hideinitializer
hudakz	3:5b17e4656dd0	589	*/
hudakz	8:4acb22344932	590
hudakz	8:4acb22344932	591	#define uip_close() (uip_flags = UIP_CLOSE)
hudakz	3:5b17e4656dd0	592
hudakz	3:5b17e4656dd0	593	/**
hudakz	3:5b17e4656dd0	594	* Abort the current connection.
hudakz	3:5b17e4656dd0	595	*
hudakz	3:5b17e4656dd0	596	* This function will abort (reset) the current connection, and is
hudakz	3:5b17e4656dd0	597	* usually used when an error has occured that prevents using the
hudakz	3:5b17e4656dd0	598	* uip_close() function.
hudakz	3:5b17e4656dd0	599	*
hudakz	3:5b17e4656dd0	600	* \hideinitializer
hudakz	3:5b17e4656dd0	601	*/
hudakz	8:4acb22344932	602
hudakz	8:4acb22344932	603	#define uip_abort() (uip_flags = UIP_ABORT)
hudakz	3:5b17e4656dd0	604
hudakz	3:5b17e4656dd0	605	/**
hudakz	3:5b17e4656dd0	606	* Tell the sending host to stop sending data.
hudakz	3:5b17e4656dd0	607	*
hudakz	3:5b17e4656dd0	608	* This function will close our receiver's window so that we stop
hudakz	3:5b17e4656dd0	609	* receiving data for the current connection.
hudakz	3:5b17e4656dd0	610	*
hudakz	3:5b17e4656dd0	611	* \hideinitializer
hudakz	3:5b17e4656dd0	612	*/
hudakz	8:4acb22344932	613
hudakz	8:4acb22344932	614	#define uip_stop() (uip_conn->tcpstateflags \|= UIP_STOPPED)
hudakz	3:5b17e4656dd0	615
hudakz	3:5b17e4656dd0	616	/**
hudakz	3:5b17e4656dd0	617	* Find out if the current connection has been previously stopped with
hudakz	3:5b17e4656dd0	618	* uip_stop().
hudakz	3:5b17e4656dd0	619	*
hudakz	3:5b17e4656dd0	620	* \hideinitializer
hudakz	3:5b17e4656dd0	621	*/
hudakz	8:4acb22344932	622
hudakz	4:d774541a34da	623	#define uip_stopped(conn) ((conn)->tcpstateflags & UIP_STOPPED)
hudakz	3:5b17e4656dd0	624
hudakz	3:5b17e4656dd0	625	/**
hudakz	3:5b17e4656dd0	626	* Restart the current connection, if is has previously been stopped
hudakz	3:5b17e4656dd0	627	* with uip_stop().
hudakz	3:5b17e4656dd0	628	*
hudakz	3:5b17e4656dd0	629	* This function will open the receiver's window again so that we
hudakz	3:5b17e4656dd0	630	* start receiving data for the current connection.
hudakz	3:5b17e4656dd0	631	*
hudakz	3:5b17e4656dd0	632	* \hideinitializer
hudakz	3:5b17e4656dd0	633	*/
hudakz	3:5b17e4656dd0	634
hudakz	8:4acb22344932	635	#define uip_restart() \
hudakz	8:4acb22344932	636	do { \
hudakz	8:4acb22344932	637	uip_flags \|= UIP_NEWDATA; \
hudakz	8:4acb22344932	638	uip_conn->tcpstateflags &= ~UIP_STOPPED; \
hudakz	8:4acb22344932	639	} while (0)
hudakz	3:5b17e4656dd0	640
hudakz	8:4acb22344932	641	/* UIP tests that can be made to determine in what state the current
hudakz	3:5b17e4656dd0	642	connection is, and what the application function should do. */
hudakz	3:5b17e4656dd0	643
hudakz	3:5b17e4656dd0	644	/**
hudakz	3:5b17e4656dd0	645	* Is the current connection a UDP connection?
hudakz	3:5b17e4656dd0	646	*
hudakz	3:5b17e4656dd0	647	* This function checks whether the current connection is a UDP connection.
hudakz	3:5b17e4656dd0	648	*
hudakz	3:5b17e4656dd0	649	* \hideinitializer
hudakz	3:5b17e4656dd0	650	*
hudakz	3:5b17e4656dd0	651	*/
hudakz	4:d774541a34da	652	#define uip_udpconnection() (uip_conn == NULL)
hudakz	3:5b17e4656dd0	653
hudakz	3:5b17e4656dd0	654	/**
hudakz	3:5b17e4656dd0	655	* Is new incoming data available?
hudakz	3:5b17e4656dd0	656	*
hudakz	3:5b17e4656dd0	657	* Will reduce to non-zero if there is new data for the application
hudakz	3:5b17e4656dd0	658	* present at the uip_appdata pointer. The size of the data is
hudakz	3:5b17e4656dd0	659	* avaliable through the uip_len variable.
hudakz	3:5b17e4656dd0	660	*
hudakz	3:5b17e4656dd0	661	* \hideinitializer
hudakz	3:5b17e4656dd0	662	*/
hudakz	8:4acb22344932	663
hudakz	4:d774541a34da	664	#define uip_newdata() (uip_flags & UIP_NEWDATA)
hudakz	3:5b17e4656dd0	665
hudakz	3:5b17e4656dd0	666	/**
hudakz	3:5b17e4656dd0	667	* Has previously sent data been acknowledged?
hudakz	3:5b17e4656dd0	668	*
hudakz	3:5b17e4656dd0	669	* Will reduce to non-zero if the previously sent data has been
hudakz	3:5b17e4656dd0	670	* acknowledged by the remote host. This means that the application
hudakz	3:5b17e4656dd0	671	* can send new data.
hudakz	3:5b17e4656dd0	672	*
hudakz	3:5b17e4656dd0	673	* \hideinitializer
hudakz	3:5b17e4656dd0	674	*/
hudakz	8:4acb22344932	675
hudakz	8:4acb22344932	676	#define uip_acked() (uip_flags & UIP_ACKDATA)
hudakz	3:5b17e4656dd0	677
hudakz	3:5b17e4656dd0	678	/**
hudakz	3:5b17e4656dd0	679	* Has the connection just been connected?
hudakz	3:5b17e4656dd0	680	*
hudakz	3:5b17e4656dd0	681	* Reduces to non-zero if the current connection has been connected to
hudakz	3:5b17e4656dd0	682	* a remote host. This will happen both if the connection has been
hudakz	3:5b17e4656dd0	683	* actively opened (with uip_connect()) or passively opened (with
hudakz	3:5b17e4656dd0	684	* uip_listen()).
hudakz	3:5b17e4656dd0	685	*
hudakz	3:5b17e4656dd0	686	* \hideinitializer
hudakz	3:5b17e4656dd0	687	*/
hudakz	8:4acb22344932	688
hudakz	4:d774541a34da	689	#define uip_connected() (uip_flags & UIP_CONNECTED)
hudakz	3:5b17e4656dd0	690
hudakz	3:5b17e4656dd0	691	/**
hudakz	3:5b17e4656dd0	692	* Has the connection been closed by the other end?
hudakz	3:5b17e4656dd0	693	*
hudakz	3:5b17e4656dd0	694	* Is non-zero if the connection has been closed by the remote
hudakz	3:5b17e4656dd0	695	* host. The application may then do the necessary clean-ups.
hudakz	3:5b17e4656dd0	696	*
hudakz	3:5b17e4656dd0	697	* \hideinitializer
hudakz	3:5b17e4656dd0	698	*/
hudakz	8:4acb22344932	699
hudakz	4:d774541a34da	700	#define uip_closed() (uip_flags & UIP_CLOSE)
hudakz	3:5b17e4656dd0	701
hudakz	3:5b17e4656dd0	702	/**
hudakz	3:5b17e4656dd0	703	* Has the connection been aborted by the other end?
hudakz	3:5b17e4656dd0	704	*
hudakz	3:5b17e4656dd0	705	* Non-zero if the current connection has been aborted (reset) by the
hudakz	3:5b17e4656dd0	706	* remote host.
hudakz	3:5b17e4656dd0	707	*
hudakz	3:5b17e4656dd0	708	* \hideinitializer
hudakz	3:5b17e4656dd0	709	*/
hudakz	8:4acb22344932	710
hudakz	8:4acb22344932	711	#define uip_aborted() (uip_flags & UIP_ABORT)
hudakz	3:5b17e4656dd0	712
hudakz	3:5b17e4656dd0	713	/**
hudakz	3:5b17e4656dd0	714	* Has the connection timed out?
hudakz	3:5b17e4656dd0	715	*
hudakz	3:5b17e4656dd0	716	* Non-zero if the current connection has been aborted due to too many
hudakz	3:5b17e4656dd0	717	* retransmissions.
hudakz	3:5b17e4656dd0	718	*
hudakz	3:5b17e4656dd0	719	* \hideinitializer
hudakz	3:5b17e4656dd0	720	*/
hudakz	8:4acb22344932	721
hudakz	8:4acb22344932	722	#define uip_timedout() (uip_flags & UIP_TIMEDOUT)
hudakz	3:5b17e4656dd0	723
hudakz	3:5b17e4656dd0	724	/**
hudakz	3:5b17e4656dd0	725	* Do we need to retransmit previously data?
hudakz	3:5b17e4656dd0	726	*
hudakz	3:5b17e4656dd0	727	* Reduces to non-zero if the previously sent data has been lost in
hudakz	3:5b17e4656dd0	728	* the network, and the application should retransmit it. The
hudakz	3:5b17e4656dd0	729	* application should send the exact same data as it did the last
hudakz	3:5b17e4656dd0	730	* time, using the uip_send() function.
hudakz	3:5b17e4656dd0	731	*
hudakz	3:5b17e4656dd0	732	* \hideinitializer
hudakz	3:5b17e4656dd0	733	*/
hudakz	8:4acb22344932	734
hudakz	8:4acb22344932	735	#define uip_rexmit() (uip_flags & UIP_REXMIT)
hudakz	3:5b17e4656dd0	736
hudakz	3:5b17e4656dd0	737	/**
hudakz	8:4acb22344932	738	* Is the connection being polled by UIP?
hudakz	3:5b17e4656dd0	739	*
hudakz	3:5b17e4656dd0	740	* Is non-zero if the reason the application is invoked is that the
hudakz	3:5b17e4656dd0	741	* current connection has been idle for a while and should be
hudakz	3:5b17e4656dd0	742	* polled.
hudakz	3:5b17e4656dd0	743	*
hudakz	3:5b17e4656dd0	744	* The polling event can be used for sending data without having to
hudakz	3:5b17e4656dd0	745	* wait for the remote host to send data.
hudakz	3:5b17e4656dd0	746	*
hudakz	3:5b17e4656dd0	747	* \hideinitializer
hudakz	3:5b17e4656dd0	748	*/
hudakz	8:4acb22344932	749
hudakz	8:4acb22344932	750	#define uip_poll() (uip_flags & UIP_POLL)
hudakz	3:5b17e4656dd0	751
hudakz	3:5b17e4656dd0	752	/**
hudakz	3:5b17e4656dd0	753	* Get the initial maxium segment size (MSS) of the current
hudakz	3:5b17e4656dd0	754	* connection.
hudakz	3:5b17e4656dd0	755	*
hudakz	3:5b17e4656dd0	756	* \hideinitializer
hudakz	3:5b17e4656dd0	757	*/
hudakz	8:4acb22344932	758
hudakz	8:4acb22344932	759	#define uip_initialmss() (uip_conn->initialmss)
hudakz	3:5b17e4656dd0	760
hudakz	3:5b17e4656dd0	761	/**
hudakz	3:5b17e4656dd0	762	* Get the current maxium segment size that can be sent on the current
hudakz	3:5b17e4656dd0	763	* connection.
hudakz	3:5b17e4656dd0	764	*
hudakz	3:5b17e4656dd0	765	* The current maxiumum segment size that can be sent on the
hudakz	3:5b17e4656dd0	766	* connection is computed from the receiver's window and the MSS of
hudakz	3:5b17e4656dd0	767	* the connection (which also is available by calling
hudakz	3:5b17e4656dd0	768	* uip_initialmss()).
hudakz	3:5b17e4656dd0	769	*
hudakz	3:5b17e4656dd0	770	* \hideinitializer
hudakz	3:5b17e4656dd0	771	*/
hudakz	3:5b17e4656dd0	772
hudakz	8:4acb22344932	773	#define uip_mss() (uip_conn->mss)
hudakz	8:4acb22344932	774	/**
hudakz	3:5b17e4656dd0	775	* Set up a new UDP connection.
hudakz	3:5b17e4656dd0	776	*
hudakz	3:5b17e4656dd0	777	* This function sets up a new UDP connection. The function will
hudakz	3:5b17e4656dd0	778	* automatically allocate an unused local port for the new
hudakz	3:5b17e4656dd0	779	* connection. However, another port can be chosen by using the
hudakz	3:5b17e4656dd0	780	* uip_udp_bind() call, after the uip_udp_new() function has been
hudakz	3:5b17e4656dd0	781	* called.
hudakz	3:5b17e4656dd0	782	*
hudakz	3:5b17e4656dd0	783	* Example:
hudakz	3:5b17e4656dd0	784	\code
hudakz	3:5b17e4656dd0	785	uip_ipaddr_t addr;
hudakz	3:5b17e4656dd0	786	struct uip_udp_conn *c;
hudakz	4:d774541a34da	787
hudakz	3:5b17e4656dd0	788	uip_ipaddr(&addr, 192,168,2,1);
hudakz	3:5b17e4656dd0	789	c = uip_udp_new(&addr, HTONS(12345));
hudakz	3:5b17e4656dd0	790	if(c != NULL) {
hudakz	3:5b17e4656dd0	791	uip_udp_bind(c, HTONS(12344));
hudakz	3:5b17e4656dd0	792	}
hudakz	3:5b17e4656dd0	793	\endcode
hudakz	3:5b17e4656dd0	794	* \param ripaddr The IP address of the remote host.
hudakz	3:5b17e4656dd0	795	*
hudakz	3:5b17e4656dd0	796	* \param rport The remote port number in network byte order.
hudakz	3:5b17e4656dd0	797	*
hudakz	3:5b17e4656dd0	798	* \return The uip_udp_conn structure for the new connection or NULL
hudakz	3:5b17e4656dd0	799	* if no connection could be allocated.
hudakz	3:5b17e4656dd0	800	*/
hudakz	8:4acb22344932	801	struct uip_udp_conn* uip_udp_new(uip_ipaddr_t* ripaddr, u16_t rport);
hudakz	3:5b17e4656dd0	802
hudakz	3:5b17e4656dd0	803	/**
hudakz	3:5b17e4656dd0	804	* Removed a UDP connection.
hudakz	3:5b17e4656dd0	805	*
hudakz	3:5b17e4656dd0	806	* \param conn A pointer to the uip_udp_conn structure for the connection.
hudakz	3:5b17e4656dd0	807	*
hudakz	3:5b17e4656dd0	808	* \hideinitializer
hudakz	3:5b17e4656dd0	809	*/
hudakz	8:4acb22344932	810
hudakz	8:4acb22344932	811	#define uip_udp_remove(conn) (conn)->lport = 0
hudakz	3:5b17e4656dd0	812
hudakz	3:5b17e4656dd0	813	/**
hudakz	3:5b17e4656dd0	814	* Bind a UDP connection to a local port.
hudakz	3:5b17e4656dd0	815	*
hudakz	3:5b17e4656dd0	816	* \param conn A pointer to the uip_udp_conn structure for the
hudakz	3:5b17e4656dd0	817	* connection.
hudakz	3:5b17e4656dd0	818	*
hudakz	3:5b17e4656dd0	819	* \param port The local port number, in network byte order.
hudakz	3:5b17e4656dd0	820	*
hudakz	3:5b17e4656dd0	821	* \hideinitializer
hudakz	3:5b17e4656dd0	822	*/
hudakz	8:4acb22344932	823
hudakz	8:4acb22344932	824	#define uip_udp_bind(conn, port) (conn)->lport = port
hudakz	3:5b17e4656dd0	825
hudakz	3:5b17e4656dd0	826	/**
hudakz	3:5b17e4656dd0	827	* Send a UDP datagram of length len on the current connection.
hudakz	3:5b17e4656dd0	828	*
hudakz	3:5b17e4656dd0	829	* This function can only be called in response to a UDP event (poll
hudakz	3:5b17e4656dd0	830	* or newdata). The data must be present in the uip_buf buffer, at the
hudakz	3:5b17e4656dd0	831	* place pointed to by the uip_appdata pointer.
hudakz	3:5b17e4656dd0	832	*
hudakz	3:5b17e4656dd0	833	* \param len The length of the data in the uip_buf buffer.
hudakz	3:5b17e4656dd0	834	*
hudakz	3:5b17e4656dd0	835	* \hideinitializer
hudakz	3:5b17e4656dd0	836	*/
hudakz	8:4acb22344932	837
hudakz	8:4acb22344932	838	#define uip_udp_send(len) uip_send((char*)uip_appdata, len)
hudakz	3:5b17e4656dd0	839
hudakz	3:5b17e4656dd0	840	/** @} */
hudakz	3:5b17e4656dd0	841
hudakz	8:4acb22344932	842	/* UIP convenience and converting functions. */
hudakz	3:5b17e4656dd0	843	/**
hudakz	8:4acb22344932	844	* \defgroup uipconvfunc UIP conversion functions
hudakz	3:5b17e4656dd0	845	* @{
hudakz	3:5b17e4656dd0	846	*
hudakz	3:5b17e4656dd0	847	* These functions can be used for converting between different data
hudakz	8:4acb22344932	848	* formats used by UIP.
hudakz	3:5b17e4656dd0	849	*/
hudakz	8:4acb22344932	850
hudakz	3:5b17e4656dd0	851	/**
hudakz	3:5b17e4656dd0	852	* Construct an IP address from four bytes.
hudakz	3:5b17e4656dd0	853	*
hudakz	8:4acb22344932	854	* This function constructs an IP address of the type that UIP handles
hudakz	3:5b17e4656dd0	855	* internally from four bytes. The function is handy for specifying IP
hudakz	3:5b17e4656dd0	856	* addresses to use with e.g. the uip_connect() function.
hudakz	3:5b17e4656dd0	857	*
hudakz	3:5b17e4656dd0	858	* Example:
hudakz	3:5b17e4656dd0	859	\code
hudakz	3:5b17e4656dd0	860	uip_ipaddr_t ipaddr;
hudakz	3:5b17e4656dd0	861	struct uip_conn *c;
hudakz	4:d774541a34da	862
hudakz	3:5b17e4656dd0	863	uip_ipaddr(&ipaddr, 192,168,1,2);
hudakz	3:5b17e4656dd0	864	c = uip_connect(&ipaddr, HTONS(80));
hudakz	3:5b17e4656dd0	865	\endcode
hudakz	3:5b17e4656dd0	866	*
hudakz	3:5b17e4656dd0	867	* \param addr A pointer to a uip_ipaddr_t variable that will be
hudakz	3:5b17e4656dd0	868	* filled in with the IP address.
hudakz	3:5b17e4656dd0	869	*
hudakz	3:5b17e4656dd0	870	* \param addr0 The first octet of the IP address.
hudakz	3:5b17e4656dd0	871	* \param addr1 The second octet of the IP address.
hudakz	3:5b17e4656dd0	872	* \param addr2 The third octet of the IP address.
hudakz	3:5b17e4656dd0	873	* \param addr3 The forth octet of the IP address.
hudakz	3:5b17e4656dd0	874	*
hudakz	3:5b17e4656dd0	875	* \hideinitializer
hudakz	3:5b17e4656dd0	876	*/
hudakz	8:4acb22344932	877	#define uip_ipaddr(addr, addr0, addr1, addr2, addr3) \
hudakz	8:4acb22344932	878	do { \
hudakz	8:4acb22344932	879	((u16_t *) (addr))[0] = HTONS(((addr0) << 8) \| (addr1)); \
hudakz	8:4acb22344932	880	((u16_t *) (addr))[1] = HTONS(((addr2) << 8) \| (addr3)); \
hudakz	8:4acb22344932	881	} while (0)
hudakz	3:5b17e4656dd0	882
hudakz	3:5b17e4656dd0	883	/**
hudakz	3:5b17e4656dd0	884	* Construct an IPv6 address from eight 16-bit words.
hudakz	3:5b17e4656dd0	885	*
hudakz	3:5b17e4656dd0	886	* This function constructs an IPv6 address.
hudakz	3:5b17e4656dd0	887	*
hudakz	3:5b17e4656dd0	888	* \hideinitializer
hudakz	3:5b17e4656dd0	889	*/
hudakz	3:5b17e4656dd0	890
hudakz	8:4acb22344932	891	#define uip_ip6addr(addr, addr0, addr1, addr2, addr3, addr4, addr5, addr6, addr7) \
hudakz	8:4acb22344932	892	do { \
hudakz	8:4acb22344932	893	((u16_t *) (addr))[0] = HTONS((addr0)); \
hudakz	8:4acb22344932	894	((u16_t *) (addr))[1] = HTONS((addr1)); \
hudakz	8:4acb22344932	895	((u16_t *) (addr))[2] = HTONS((addr2)); \
hudakz	8:4acb22344932	896	((u16_t *) (addr))[3] = HTONS((addr3)); \
hudakz	8:4acb22344932	897	((u16_t *) (addr))[4] = HTONS((addr4)); \
hudakz	8:4acb22344932	898	((u16_t *) (addr))[5] = HTONS((addr5)); \
hudakz	8:4acb22344932	899	((u16_t *) (addr))[6] = HTONS((addr6)); \
hudakz	8:4acb22344932	900	((u16_t *) (addr))[7] = HTONS((addr7)); \
hudakz	8:4acb22344932	901	} while (0) /**
hudakz	3:5b17e4656dd0	902	* Copy an IP address to another IP address.
hudakz	3:5b17e4656dd0	903	*
hudakz	3:5b17e4656dd0	904	* Copies an IP address from one place to another.
hudakz	3:5b17e4656dd0	905	*
hudakz	3:5b17e4656dd0	906	* Example:
hudakz	3:5b17e4656dd0	907	\code
hudakz	3:5b17e4656dd0	908	uip_ipaddr_t ipaddr1, ipaddr2;
hudakz	3:5b17e4656dd0	909
hudakz	3:5b17e4656dd0	910	uip_ipaddr(&ipaddr1, 192,16,1,2);
hudakz	3:5b17e4656dd0	911	uip_ipaddr_copy(&ipaddr2, &ipaddr1);
hudakz	3:5b17e4656dd0	912	\endcode
hudakz	3:5b17e4656dd0	913	*
hudakz	3:5b17e4656dd0	914	* \param dest The destination for the copy.
hudakz	3:5b17e4656dd0	915	* \param src The source from where to copy.
hudakz	3:5b17e4656dd0	916	*
hudakz	3:5b17e4656dd0	917	* \hideinitializer
hudakz	3:5b17e4656dd0	918	*/
hudakz	8:4acb22344932	919
hudakz	4:d774541a34da	920	#if !UIP_CONF_IPV6
hudakz	8:4acb22344932	921	#define uip_ipaddr_copy(dest, src) \
hudakz	8:4acb22344932	922	do { \
hudakz	8:4acb22344932	923	((u16_t)dest)[0] = ((u16_t)src)[0]; \
hudakz	8:4acb22344932	924	((u16_t)dest)[1] = ((u16_t)src)[1]; \
hudakz	8:4acb22344932	925	} while (0)
hudakz	4:d774541a34da	926	#else /* !UIP_CONF_IPV6 */
hudakz	8:4acb22344932	927
hudakz	8:4acb22344932	928	#define uip_ipaddr_copy(dest, src) memcpy(dest, src, sizeof(uip_ip6addr_t))
hudakz	4:d774541a34da	929	#endif /* !UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	930
hudakz	8:4acb22344932	931	/**
hudakz	3:5b17e4656dd0	932	* Compare two IP addresses
hudakz	3:5b17e4656dd0	933	*
hudakz	3:5b17e4656dd0	934	* Compares two IP addresses.
hudakz	3:5b17e4656dd0	935	*
hudakz	3:5b17e4656dd0	936	* Example:
hudakz	3:5b17e4656dd0	937	\code
hudakz	3:5b17e4656dd0	938	uip_ipaddr_t ipaddr1, ipaddr2;
hudakz	3:5b17e4656dd0	939
hudakz	3:5b17e4656dd0	940	uip_ipaddr(&ipaddr1, 192,16,1,2);
hudakz	3:5b17e4656dd0	941	if(uip_ipaddr_cmp(&ipaddr2, &ipaddr1)) {
hudakz	3:5b17e4656dd0	942	printf("They are the same");
hudakz	3:5b17e4656dd0	943	}
hudakz	3:5b17e4656dd0	944	\endcode
hudakz	3:5b17e4656dd0	945	*
hudakz	3:5b17e4656dd0	946	* \param addr1 The first IP address.
hudakz	3:5b17e4656dd0	947	* \param addr2 The second IP address.
hudakz	3:5b17e4656dd0	948	*
hudakz	3:5b17e4656dd0	949	* \hideinitializer
hudakz	3:5b17e4656dd0	950	*/
hudakz	8:4acb22344932	951
hudakz	4:d774541a34da	952	#if !UIP_CONF_IPV6
hudakz	8:4acb22344932	953	#define uip_ipaddr_cmp(addr1, addr2) \
hudakz	8:4acb22344932	954	(((u16_t)addr1)[0] == ((u16_t)addr2)[0] && ((u16_t)addr1)[1] == ((u16_t)addr2)[1])
hudakz	4:d774541a34da	955	#else /* !UIP_CONF_IPV6 */
hudakz	8:4acb22344932	956
hudakz	8:4acb22344932	957	#define uip_ipaddr_cmp(addr1, addr2) (memcmp(addr1, addr2, sizeof(uip_ip6addr_t)) == 0)
hudakz	4:d774541a34da	958	#endif /* !UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	959
hudakz	3:5b17e4656dd0	960	/**
hudakz	3:5b17e4656dd0	961	* Compare two IP addresses with netmasks
hudakz	3:5b17e4656dd0	962	*
hudakz	3:5b17e4656dd0	963	* Compares two IP addresses with netmasks. The masks are used to mask
hudakz	3:5b17e4656dd0	964	* out the bits that are to be compared.
hudakz	3:5b17e4656dd0	965	*
hudakz	3:5b17e4656dd0	966	* Example:
hudakz	3:5b17e4656dd0	967	\code
hudakz	3:5b17e4656dd0	968	uip_ipaddr_t ipaddr1, ipaddr2, mask;
hudakz	3:5b17e4656dd0	969
hudakz	3:5b17e4656dd0	970	uip_ipaddr(&mask, 255,255,255,0);
hudakz	3:5b17e4656dd0	971	uip_ipaddr(&ipaddr1, 192,16,1,2);
hudakz	3:5b17e4656dd0	972	uip_ipaddr(&ipaddr2, 192,16,1,3);
hudakz	3:5b17e4656dd0	973	if(uip_ipaddr_maskcmp(&ipaddr1, &ipaddr2, &mask)) {
hudakz	3:5b17e4656dd0	974	printf("They are the same");
hudakz	3:5b17e4656dd0	975	}
hudakz	3:5b17e4656dd0	976	\endcode
hudakz	3:5b17e4656dd0	977	*
hudakz	3:5b17e4656dd0	978	* \param addr1 The first IP address.
hudakz	3:5b17e4656dd0	979	* \param addr2 The second IP address.
hudakz	3:5b17e4656dd0	980	* \param mask The netmask.
hudakz	3:5b17e4656dd0	981	*
hudakz	3:5b17e4656dd0	982	* \hideinitializer
hudakz	3:5b17e4656dd0	983	*/
hudakz	8:4acb22344932	984
hudakz	4:d774541a34da	985	#define uip_ipaddr_maskcmp(addr1, addr2, mask) \
hudakz	8:4acb22344932	986	( \
hudakz	8:4acb22344932	987	((((u16_t)addr1)[0] & ((u16_t)mask)[0]) == (((u16_t)addr2)[0] & ((u16_t)mask)[0])) \
hudakz	8:4acb22344932	988	&& ((((u16_t)addr1)[1] & ((u16_t)mask)[1]) == (((u16_t)addr2)[1] & ((u16_t)mask)[1])) \
hudakz	8:4acb22344932	989	)
hudakz	3:5b17e4656dd0	990
hudakz	3:5b17e4656dd0	991	/**
hudakz	3:5b17e4656dd0	992	* Mask out the network part of an IP address.
hudakz	3:5b17e4656dd0	993	*
hudakz	3:5b17e4656dd0	994	* Masks out the network part of an IP address, given the address and
hudakz	3:5b17e4656dd0	995	* the netmask.
hudakz	3:5b17e4656dd0	996	*
hudakz	3:5b17e4656dd0	997	* Example:
hudakz	3:5b17e4656dd0	998	\code
hudakz	3:5b17e4656dd0	999	uip_ipaddr_t ipaddr1, ipaddr2, netmask;
hudakz	3:5b17e4656dd0	1000
hudakz	3:5b17e4656dd0	1001	uip_ipaddr(&ipaddr1, 192,16,1,2);
hudakz	3:5b17e4656dd0	1002	uip_ipaddr(&netmask, 255,255,255,0);
hudakz	3:5b17e4656dd0	1003	uip_ipaddr_mask(&ipaddr2, &ipaddr1, &netmask);
hudakz	3:5b17e4656dd0	1004	\endcode
hudakz	3:5b17e4656dd0	1005	*
hudakz	3:5b17e4656dd0	1006	* In the example above, the variable "ipaddr2" will contain the IP
hudakz	3:5b17e4656dd0	1007	* address 192.168.1.0.
hudakz	3:5b17e4656dd0	1008	*
hudakz	3:5b17e4656dd0	1009	* \param dest Where the result is to be placed.
hudakz	3:5b17e4656dd0	1010	* \param src The IP address.
hudakz	3:5b17e4656dd0	1011	* \param mask The netmask.
hudakz	3:5b17e4656dd0	1012	*
hudakz	3:5b17e4656dd0	1013	* \hideinitializer
hudakz	3:5b17e4656dd0	1014	*/
hudakz	8:4acb22344932	1015
hudakz	8:4acb22344932	1016	#define uip_ipaddr_mask(dest, src, mask) \
hudakz	8:4acb22344932	1017	do { \
hudakz	8:4acb22344932	1018	((u16_t)dest)[0] = ((u16_t)src)[0] & ((u16_t*)mask)[0]; \
hudakz	8:4acb22344932	1019	((u16_t)dest)[1] = ((u16_t)src)[1] & ((u16_t*)mask)[1]; \
hudakz	8:4acb22344932	1020	} while (0)
hudakz	3:5b17e4656dd0	1021
hudakz	3:5b17e4656dd0	1022	/**
hudakz	3:5b17e4656dd0	1023	* Pick the first octet of an IP address.
hudakz	3:5b17e4656dd0	1024	*
hudakz	3:5b17e4656dd0	1025	* Picks out the first octet of an IP address.
hudakz	3:5b17e4656dd0	1026	*
hudakz	3:5b17e4656dd0	1027	* Example:
hudakz	3:5b17e4656dd0	1028	\code
hudakz	3:5b17e4656dd0	1029	uip_ipaddr_t ipaddr;
hudakz	3:5b17e4656dd0	1030	u8_t octet;
hudakz	3:5b17e4656dd0	1031
hudakz	3:5b17e4656dd0	1032	uip_ipaddr(&ipaddr, 1,2,3,4);
hudakz	3:5b17e4656dd0	1033	octet = uip_ipaddr1(&ipaddr);
hudakz	3:5b17e4656dd0	1034	\endcode
hudakz	3:5b17e4656dd0	1035	*
hudakz	3:5b17e4656dd0	1036	* In the example above, the variable "octet" will contain the value 1.
hudakz	3:5b17e4656dd0	1037	*
hudakz	3:5b17e4656dd0	1038	* \hideinitializer
hudakz	3:5b17e4656dd0	1039	*/
hudakz	8:4acb22344932	1040
hudakz	8:4acb22344932	1041	#define uip_ipaddr1(addr) (htons(((u16_t *) (addr))[0]) >> 8)
hudakz	3:5b17e4656dd0	1042
hudakz	3:5b17e4656dd0	1043	/**
hudakz	3:5b17e4656dd0	1044	* Pick the second octet of an IP address.
hudakz	3:5b17e4656dd0	1045	*
hudakz	3:5b17e4656dd0	1046	* Picks out the second octet of an IP address.
hudakz	3:5b17e4656dd0	1047	*
hudakz	3:5b17e4656dd0	1048	* Example:
hudakz	3:5b17e4656dd0	1049	\code
hudakz	3:5b17e4656dd0	1050	uip_ipaddr_t ipaddr;
hudakz	3:5b17e4656dd0	1051	u8_t octet;
hudakz	3:5b17e4656dd0	1052
hudakz	3:5b17e4656dd0	1053	uip_ipaddr(&ipaddr, 1,2,3,4);
hudakz	3:5b17e4656dd0	1054	octet = uip_ipaddr2(&ipaddr);
hudakz	3:5b17e4656dd0	1055	\endcode
hudakz	3:5b17e4656dd0	1056	*
hudakz	3:5b17e4656dd0	1057	* In the example above, the variable "octet" will contain the value 2.
hudakz	3:5b17e4656dd0	1058	*
hudakz	3:5b17e4656dd0	1059	* \hideinitializer
hudakz	3:5b17e4656dd0	1060	*/
hudakz	8:4acb22344932	1061
hudakz	8:4acb22344932	1062	#define uip_ipaddr2(addr) (htons(((u16_t *) (addr))[0]) & 0xff)
hudakz	3:5b17e4656dd0	1063
hudakz	3:5b17e4656dd0	1064	/**
hudakz	3:5b17e4656dd0	1065	* Pick the third octet of an IP address.
hudakz	3:5b17e4656dd0	1066	*
hudakz	3:5b17e4656dd0	1067	* Picks out the third octet of an IP address.
hudakz	3:5b17e4656dd0	1068	*
hudakz	3:5b17e4656dd0	1069	* Example:
hudakz	3:5b17e4656dd0	1070	\code
hudakz	3:5b17e4656dd0	1071	uip_ipaddr_t ipaddr;
hudakz	3:5b17e4656dd0	1072	u8_t octet;
hudakz	3:5b17e4656dd0	1073
hudakz	3:5b17e4656dd0	1074	uip_ipaddr(&ipaddr, 1,2,3,4);
hudakz	3:5b17e4656dd0	1075	octet = uip_ipaddr3(&ipaddr);
hudakz	3:5b17e4656dd0	1076	\endcode
hudakz	3:5b17e4656dd0	1077	*
hudakz	3:5b17e4656dd0	1078	* In the example above, the variable "octet" will contain the value 3.
hudakz	3:5b17e4656dd0	1079	*
hudakz	3:5b17e4656dd0	1080	* \hideinitializer
hudakz	3:5b17e4656dd0	1081	*/
hudakz	8:4acb22344932	1082
hudakz	8:4acb22344932	1083	#define uip_ipaddr3(addr) (htons(((u16_t *) (addr))[1]) >> 8)
hudakz	3:5b17e4656dd0	1084
hudakz	3:5b17e4656dd0	1085	/**
hudakz	3:5b17e4656dd0	1086	* Pick the fourth octet of an IP address.
hudakz	3:5b17e4656dd0	1087	*
hudakz	3:5b17e4656dd0	1088	* Picks out the fourth octet of an IP address.
hudakz	3:5b17e4656dd0	1089	*
hudakz	3:5b17e4656dd0	1090	* Example:
hudakz	3:5b17e4656dd0	1091	\code
hudakz	3:5b17e4656dd0	1092	uip_ipaddr_t ipaddr;
hudakz	3:5b17e4656dd0	1093	u8_t octet;
hudakz	3:5b17e4656dd0	1094
hudakz	3:5b17e4656dd0	1095	uip_ipaddr(&ipaddr, 1,2,3,4);
hudakz	3:5b17e4656dd0	1096	octet = uip_ipaddr4(&ipaddr);
hudakz	3:5b17e4656dd0	1097	\endcode
hudakz	3:5b17e4656dd0	1098	*
hudakz	3:5b17e4656dd0	1099	* In the example above, the variable "octet" will contain the value 4.
hudakz	3:5b17e4656dd0	1100	*
hudakz	3:5b17e4656dd0	1101	* \hideinitializer
hudakz	3:5b17e4656dd0	1102	*/
hudakz	3:5b17e4656dd0	1103
hudakz	8:4acb22344932	1104	#define uip_ipaddr4(addr) (htons(((u16_t *) (addr))[1]) & 0xff)
hudakz	8:4acb22344932	1105	/**
hudakz	3:5b17e4656dd0	1106	* Convert 16-bit quantity from host byte order to network byte order.
hudakz	3:5b17e4656dd0	1107	*
hudakz	3:5b17e4656dd0	1108	* This macro is primarily used for converting constants from host
hudakz	3:5b17e4656dd0	1109	* byte order to network byte order. For converting variables to
hudakz	3:5b17e4656dd0	1110	* network byte order, use the htons() function instead.
hudakz	3:5b17e4656dd0	1111	*
hudakz	3:5b17e4656dd0	1112	* \hideinitializer
hudakz	3:5b17e4656dd0	1113	*/
hudakz	8:4acb22344932	1114
hudakz	4:d774541a34da	1115	#ifndef HTONS
hudakz	8:4acb22344932	1116	#if UIP_BYTE_ORDER == UIP_BIG_ENDIAN
hudakz	8:4acb22344932	1117	#define HTONS(n) (n)
hudakz	8:4acb22344932	1118	#else /* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */
hudakz	8:4acb22344932	1119
hudakz	8:4acb22344932	1120	#define HTONS(n) (u16_t) ((((u16_t) (n)) << 8) \| (((u16_t) (n)) >> 8))
hudakz	8:4acb22344932	1121	#endif /* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */
hudakz	8:4acb22344932	1122
hudakz	4:d774541a34da	1123	#else
hudakz	4:d774541a34da	1124	#error "HTONS already defined!"
hudakz	4:d774541a34da	1125	#endif /* HTONS */
hudakz	3:5b17e4656dd0	1126
hudakz	8:4acb22344932	1127	/**
hudakz	3:5b17e4656dd0	1128	* Convert 16-bit quantity from host byte order to network byte order.
hudakz	3:5b17e4656dd0	1129	*
hudakz	3:5b17e4656dd0	1130	* This function is primarily used for converting variables from host
hudakz	3:5b17e4656dd0	1131	* byte order to network byte order. For converting constants to
hudakz	3:5b17e4656dd0	1132	* network byte order, use the HTONS() macro instead.
hudakz	3:5b17e4656dd0	1133	*/
hudakz	8:4acb22344932	1134
hudakz	4:d774541a34da	1135	#ifndef htons
hudakz	8:4acb22344932	1136	u16_t htons(u16_t val);
hudakz	4:d774541a34da	1137	#endif /* htons */
hudakz	8:4acb22344932	1138
hudakz	4:d774541a34da	1139	#ifndef ntohs
hudakz	8:4acb22344932	1140	#define ntohs htons
hudakz	4:d774541a34da	1141	#endif
hudakz	3:5b17e4656dd0	1142	/** @} */
hudakz	3:5b17e4656dd0	1143
hudakz	3:5b17e4656dd0	1144	/**
hudakz	3:5b17e4656dd0	1145	* Pointer to the application data in the packet buffer.
hudakz	3:5b17e4656dd0	1146	*
hudakz	3:5b17e4656dd0	1147	* This pointer points to the application data when the application is
hudakz	3:5b17e4656dd0	1148	* called. If the application wishes to send data, the application may
hudakz	3:5b17e4656dd0	1149	* use this space to write the data into before calling uip_send().
hudakz	3:5b17e4656dd0	1150	*/
hudakz	8:4acb22344932	1151	extern void* uip_appdata;
hudakz	3:5b17e4656dd0	1152
hudakz	4:d774541a34da	1153	#if UIP_URGDATA > 0
hudakz	3:5b17e4656dd0	1154	/* u8_t *uip_urgdata:
hudakz	3:5b17e4656dd0	1155	*
hudakz	3:5b17e4656dd0	1156	* This pointer points to any urgent data that has been received. Only
hudakz	3:5b17e4656dd0	1157	* present if compiled with support for urgent data (UIP_URGDATA).
hudakz	3:5b17e4656dd0	1158	*/
hudakz	8:4acb22344932	1159	extern void* uip_urgdata;
hudakz	4:d774541a34da	1160	#endif /* UIP_URGDATA > 0 */
hudakz	4:d774541a34da	1161
hudakz	3:5b17e4656dd0	1162	/**
hudakz	8:4acb22344932	1163	* \defgroup uipdrivervars Variables used in UIP device drivers
hudakz	3:5b17e4656dd0	1164	* @{
hudakz	3:5b17e4656dd0	1165	*
hudakz	8:4acb22344932	1166	* UIP has a few global variables that are used in device drivers for
hudakz	8:4acb22344932	1167	* UIP.
hudakz	3:5b17e4656dd0	1168	*/
hudakz	3:5b17e4656dd0	1169
hudakz	3:5b17e4656dd0	1170	/**
hudakz	3:5b17e4656dd0	1171	* The length of the packet in the uip_buf buffer.
hudakz	3:5b17e4656dd0	1172	*
hudakz	3:5b17e4656dd0	1173	* The global variable uip_len holds the length of the packet in the
hudakz	3:5b17e4656dd0	1174	* uip_buf buffer.
hudakz	3:5b17e4656dd0	1175	*
hudakz	8:4acb22344932	1176	* When the network device driver calls the UIP input function,
hudakz	3:5b17e4656dd0	1177	* uip_len should be set to the length of the packet in the uip_buf
hudakz	3:5b17e4656dd0	1178	* buffer.
hudakz	3:5b17e4656dd0	1179	*
hudakz	3:5b17e4656dd0	1180	* When sending packets, the device driver should use the contents of
hudakz	3:5b17e4656dd0	1181	* the uip_len variable to determine the length of the outgoing
hudakz	3:5b17e4656dd0	1182	* packet.
hudakz	3:5b17e4656dd0	1183	*
hudakz	3:5b17e4656dd0	1184	*/
hudakz	8:4acb22344932	1185	extern u16_t uip_len;
hudakz	3:5b17e4656dd0	1186
hudakz	3:5b17e4656dd0	1187	/** @} */
hudakz	4:d774541a34da	1188	#if UIP_URGDATA > 0
hudakz	8:4acb22344932	1189	extern u16_t uip_urglen, uip_surglen;
hudakz	4:d774541a34da	1190	#endif /* UIP_URGDATA > 0 */
hudakz	4:d774541a34da	1191
hudakz	3:5b17e4656dd0	1192	/**
hudakz	8:4acb22344932	1193	* Representation of a UIP TCP connection.
hudakz	3:5b17e4656dd0	1194	*
hudakz	3:5b17e4656dd0	1195	* The uip_conn structure is used for identifying a connection. All
hudakz	3:5b17e4656dd0	1196	* but one field in the structure are to be considered read-only by an
hudakz	3:5b17e4656dd0	1197	* application. The only exception is the appstate field whos purpose
hudakz	3:5b17e4656dd0	1198	* is to let the application store application-specific state (e.g.,
hudakz	3:5b17e4656dd0	1199	* file pointers) for the connection. The type of this field is
hudakz	3:5b17e4656dd0	1200	* configured in the "uipopt.h" header file.
hudakz	3:5b17e4656dd0	1201	*/
hudakz	8:4acb22344932	1202
hudakz	8:4acb22344932	1203	struct uip_conn
hudakz	8:4acb22344932	1204	{
hudakz	8:4acb22344932	1205	uip_ipaddr_t ripaddr; /*< The IP address of the remote host. /
hudakz	8:4acb22344932	1206
hudakz	8:4acb22344932	1207	u16_t lport; /*< The local TCP port, in network byte order. /
hudakz	8:4acb22344932	1208	u16_t rport; /**< The local remote TCP port, in network byte
hudakz	4:d774541a34da	1209	order. */
hudakz	8:4acb22344932	1210
hudakz	8:4acb22344932	1211	u8_t rcv_nxt[4]; /**< The sequence number that we expect to
hudakz	4:d774541a34da	1212	receive next. */
hudakz	8:4acb22344932	1213	u8_t snd_nxt[4]; /**< The sequence number that was last sent by
hudakz	3:5b17e4656dd0	1214	us. */
hudakz	8:4acb22344932	1215	u16_t len; /*< Length of the data that was previously sent. /
hudakz	8:4acb22344932	1216	u16_t mss; /**< Current maximum segment size for the
hudakz	4:d774541a34da	1217	connection. */
hudakz	8:4acb22344932	1218	u16_t initialmss; /**< Initial maximum segment size for the
hudakz	4:d774541a34da	1219	connection. */
hudakz	8:4acb22344932	1220	u8_t sa; /**< Retransmission time-out calculation state
hudakz	4:d774541a34da	1221	variable. */
hudakz	8:4acb22344932	1222	u8_t sv; /**< Retransmission time-out calculation state
hudakz	4:d774541a34da	1223	variable. */
hudakz	8:4acb22344932	1224	u8_t rto; /*< Retransmission time-out. /
hudakz	8:4acb22344932	1225	u8_t tcpstateflags; /*< TCP state and flags. /
hudakz	8:4acb22344932	1226	u8_t timer; /*< The retransmission timer. /
hudakz	8:4acb22344932	1227	u8_t nrtx; /**< The number of retransmissions for the last
hudakz	4:d774541a34da	1228	segment sent. */
hudakz	3:5b17e4656dd0	1229
hudakz	8:4acb22344932	1230	/** The application state. */
hudakz	8:4acb22344932	1231	uip_tcp_appstate_t appstate;
hudakz	3:5b17e4656dd0	1232	};
hudakz	3:5b17e4656dd0	1233
hudakz	3:5b17e4656dd0	1234	/**
hudakz	3:5b17e4656dd0	1235	* Pointer to the current TCP connection.
hudakz	3:5b17e4656dd0	1236	*
hudakz	3:5b17e4656dd0	1237	* The uip_conn pointer can be used to access the current TCP
hudakz	3:5b17e4656dd0	1238	* connection.
hudakz	3:5b17e4656dd0	1239	*/
hudakz	8:4acb22344932	1240	extern struct uip_conn* uip_conn;
hudakz	8:4acb22344932	1241
hudakz	8:4acb22344932	1242	/* The array containing all UIP connections. */
hudakz	8:4acb22344932	1243	extern struct uip_conn uip_conns[UIP_CONNS];
hudakz	8:4acb22344932	1244
hudakz	3:5b17e4656dd0	1245	/**
hudakz	3:5b17e4656dd0	1246	* \addtogroup uiparch
hudakz	3:5b17e4656dd0	1247	* @{
hudakz	3:5b17e4656dd0	1248	*/
hudakz	3:5b17e4656dd0	1249	/**
hudakz	3:5b17e4656dd0	1250	* 4-byte array used for the 32-bit sequence number calculations.
hudakz	3:5b17e4656dd0	1251	*/
hudakz	8:4acb22344932	1252	extern u8_t uip_acc32[4];
hudakz	3:5b17e4656dd0	1253
hudakz	3:5b17e4656dd0	1254	/** @} */
hudakz	3:5b17e4656dd0	1255
hudakz	8:4acb22344932	1256	#if UIP_UDP
hudakz	3:5b17e4656dd0	1257
hudakz	3:5b17e4656dd0	1258	/**
hudakz	8:4acb22344932	1259	* Representation of a UIP UDP connection.
hudakz	3:5b17e4656dd0	1260	*/
hudakz	8:4acb22344932	1261	struct uip_udp_conn
hudakz	8:4acb22344932	1262	{
hudakz	8:4acb22344932	1263	uip_ipaddr_t ripaddr; /*< The IP address of the remote peer. /
hudakz	8:4acb22344932	1264	u16_t lport; /*< The local port number in network byte order. /
hudakz	8:4acb22344932	1265	u16_t rport; /*< The remote port number in network byte order. /
hudakz	8:4acb22344932	1266	u8_t ttl; /*< Default time-to-live. /
hudakz	3:5b17e4656dd0	1267
hudakz	8:4acb22344932	1268	/** The application state. */
hudakz	8:4acb22344932	1269	uip_udp_appstate_t appstate;
hudakz	3:5b17e4656dd0	1270	};
hudakz	3:5b17e4656dd0	1271
hudakz	3:5b17e4656dd0	1272	/**
hudakz	3:5b17e4656dd0	1273	* The current UDP connection.
hudakz	3:5b17e4656dd0	1274	*/
hudakz	8:4acb22344932	1275	extern struct uip_udp_conn* uip_udp_conn;
hudakz	8:4acb22344932	1276	extern struct uip_udp_conn uip_udp_conns[UIP_UDP_CONNS];
hudakz	4:d774541a34da	1277	#endif /* UIP_UDP */
hudakz	3:5b17e4656dd0	1278
hudakz	3:5b17e4656dd0	1279	/**
hudakz	3:5b17e4656dd0	1280	* The structure holding the TCP/IP statistics that are gathered if
hudakz	3:5b17e4656dd0	1281	* UIP_STATISTICS is set to 1.
hudakz	3:5b17e4656dd0	1282	*
hudakz	3:5b17e4656dd0	1283	*/
hudakz	8:4acb22344932	1284
hudakz	8:4acb22344932	1285	struct uip_stats
hudakz	8:4acb22344932	1286	{
hudakz	8:4acb22344932	1287	struct
hudakz	8:4acb22344932	1288	{
hudakz	8:4acb22344932	1289	uip_stats_t drop; /**< Number of dropped packets at the IP
hudakz	4:d774541a34da	1290	layer. */
hudakz	8:4acb22344932	1291	uip_stats_t recv; /**< Number of received packets at the IP
hudakz	4:d774541a34da	1292	layer. */
hudakz	8:4acb22344932	1293	uip_stats_t sent; /**< Number of sent packets at the IP
hudakz	4:d774541a34da	1294	layer. */
hudakz	8:4acb22344932	1295	uip_stats_t vhlerr; /**< Number of packets dropped due to wrong
hudakz	4:d774541a34da	1296	IP version or header length. */
hudakz	8:4acb22344932	1297	uip_stats_t hblenerr; /**< Number of packets dropped due to wrong
hudakz	4:d774541a34da	1298	IP length, high byte. */
hudakz	8:4acb22344932	1299	uip_stats_t lblenerr; /**< Number of packets dropped due to wrong
hudakz	4:d774541a34da	1300	IP length, low byte. */
hudakz	8:4acb22344932	1301	uip_stats_t fragerr; /**< Number of packets dropped since they
hudakz	4:d774541a34da	1302	were IP fragments. */
hudakz	8:4acb22344932	1303	uip_stats_t chkerr; /**< Number of packets dropped due to IP
hudakz	4:d774541a34da	1304	checksum errors. */
hudakz	8:4acb22344932	1305	uip_stats_t protoerr; /**< Number of packets dropped since they
hudakz	4:d774541a34da	1306	were neither ICMP, UDP nor TCP. */
hudakz	8:4acb22344932	1307	} ip; /*< IP statistics. /
hudakz	8:4acb22344932	1308	struct
hudakz	8:4acb22344932	1309	{
hudakz	8:4acb22344932	1310	uip_stats_t drop; /*< Number of dropped ICMP packets. /
hudakz	8:4acb22344932	1311	uip_stats_t recv; /*< Number of received ICMP packets. /
hudakz	8:4acb22344932	1312	uip_stats_t sent; /*< Number of sent ICMP packets. /
hudakz	8:4acb22344932	1313	uip_stats_t typeerr; /**< Number of ICMP packets with a wrong
hudakz	4:d774541a34da	1314	type. */
hudakz	8:4acb22344932	1315	} icmp; /*< ICMP statistics. /
hudakz	8:4acb22344932	1316	struct
hudakz	8:4acb22344932	1317	{
hudakz	8:4acb22344932	1318	uip_stats_t drop; /*< Number of dropped TCP segments. /
hudakz	8:4acb22344932	1319	uip_stats_t recv; /*< Number of recived TCP segments. /
hudakz	8:4acb22344932	1320	uip_stats_t sent; /*< Number of sent TCP segments. /
hudakz	8:4acb22344932	1321	uip_stats_t chkerr; /**< Number of TCP segments with a bad
hudakz	4:d774541a34da	1322	checksum. */
hudakz	8:4acb22344932	1323	uip_stats_t ackerr; /**< Number of TCP segments with a bad ACK
hudakz	4:d774541a34da	1324	number. */
hudakz	8:4acb22344932	1325	uip_stats_t rst; /*< Number of recevied TCP RST (reset) segments. /
hudakz	8:4acb22344932	1326	uip_stats_t rexmit; /*< Number of retransmitted TCP segments. /
hudakz	8:4acb22344932	1327	uip_stats_t syndrop; /**< Number of dropped SYNs due to too few
hudakz	4:d774541a34da	1328	connections was avaliable. */
hudakz	8:4acb22344932	1329	uip_stats_t synrst; /**< Number of SYNs for closed ports,
hudakz	4:d774541a34da	1330	triggering a RST. */
hudakz	8:4acb22344932	1331	} tcp; /*< TCP statistics. /
hudakz	4:d774541a34da	1332	#if UIP_UDP
hudakz	8:4acb22344932	1333	struct
hudakz	8:4acb22344932	1334	{
hudakz	8:4acb22344932	1335	uip_stats_t drop; /*< Number of dropped UDP segments. /
hudakz	8:4acb22344932	1336	uip_stats_t recv; /*< Number of recived UDP segments. /
hudakz	8:4acb22344932	1337	uip_stats_t sent; /*< Number of sent UDP segments. /
hudakz	8:4acb22344932	1338	uip_stats_t chkerr; /**< Number of UDP segments with a bad
hudakz	4:d774541a34da	1339	checksum. */
hudakz	8:4acb22344932	1340	} udp; /*< UDP statistics. /
hudakz	4:d774541a34da	1341	#endif /* UIP_UDP */
hudakz	3:5b17e4656dd0	1342	};
hudakz	3:5b17e4656dd0	1343
hudakz	3:5b17e4656dd0	1344	/**
hudakz	8:4acb22344932	1345	* The UIP TCP/IP statistics.
hudakz	3:5b17e4656dd0	1346	*
hudakz	8:4acb22344932	1347	* This is the variable in which the UIP TCP/IP statistics are gathered.
hudakz	3:5b17e4656dd0	1348	*/
hudakz	3:5b17e4656dd0	1349	extern struct uip_stats uip_stat;
hudakz	3:5b17e4656dd0	1350
hudakz	3:5b17e4656dd0	1351	/---------------------------------------------------------------------------/
hudakz	8:4acb22344932	1352	/* All the stuff below this point is internal to UIP and should not be
hudakz	3:5b17e4656dd0	1353	* used directly by an application or by a device driver.
hudakz	3:5b17e4656dd0	1354	*/
hudakz	3:5b17e4656dd0	1355	/---------------------------------------------------------------------------/
hudakz	3:5b17e4656dd0	1356	/* u8_t uip_flags:
hudakz	3:5b17e4656dd0	1357	*
hudakz	3:5b17e4656dd0	1358	* When the application is called, uip_flags will contain the flags
hudakz	3:5b17e4656dd0	1359	* that are defined in this file. Please read below for more
hudakz	3:5b17e4656dd0	1360	* infomation.
hudakz	3:5b17e4656dd0	1361	*/
hudakz	8:4acb22344932	1362	extern u8_t uip_flags;
hudakz	3:5b17e4656dd0	1363
hudakz	3:5b17e4656dd0	1364	/* The following flags may be set in the global variable uip_flags
hudakz	3:5b17e4656dd0	1365	before calling the application callback. The UIP_ACKDATA,
hudakz	3:5b17e4656dd0	1366	UIP_NEWDATA, and UIP_CLOSE flags may both be set at the same time,
hudakz	3:5b17e4656dd0	1367	whereas the others are mutualy exclusive. Note that these flags
hudakz	8:4acb22344932	1368	should NOT be accessed directly, but only through the UIP
hudakz	3:5b17e4656dd0	1369	functions/macros. */
hudakz	3:5b17e4656dd0	1370
hudakz	8:4acb22344932	1371	#define UIP_ACKDATA 1 /* Signifies that the outstanding data was
hudakz	4:d774541a34da	1372	acked and the application should send
hudakz	4:d774541a34da	1373	out new data instead of retransmitting
hudakz	4:d774541a34da	1374	the last data. */
hudakz	8:4acb22344932	1375
hudakz	8:4acb22344932	1376	#define UIP_NEWDATA 2 /* Flags the fact that the peer has sent
hudakz	4:d774541a34da	1377	us new data. */
hudakz	8:4acb22344932	1378
hudakz	8:4acb22344932	1379	#define UIP_REXMIT 4 /* Tells the application to retransmit the
hudakz	4:d774541a34da	1380	data that was last sent. */
hudakz	8:4acb22344932	1381
hudakz	8:4acb22344932	1382	#define UIP_POLL 8 /* Used for polling the application, to
hudakz	4:d774541a34da	1383	check if the application has data that
hudakz	4:d774541a34da	1384	it wants to send. */
hudakz	8:4acb22344932	1385
hudakz	8:4acb22344932	1386	#define UIP_CLOSE 16 /* The remote host has closed the
hudakz	4:d774541a34da	1387	connection, thus the connection has
hudakz	4:d774541a34da	1388	gone away. Or the application signals
hudakz	4:d774541a34da	1389	that it wants to close the
hudakz	4:d774541a34da	1390	connection. */
hudakz	8:4acb22344932	1391
hudakz	8:4acb22344932	1392	#define UIP_ABORT 32 /* The remote host has aborted the
hudakz	4:d774541a34da	1393	connection, thus the connection has
hudakz	4:d774541a34da	1394	gone away. Or the application signals
hudakz	4:d774541a34da	1395	that it wants to abort the
hudakz	4:d774541a34da	1396	connection. */
hudakz	8:4acb22344932	1397
hudakz	8:4acb22344932	1398	#define UIP_CONNECTED 64 /* We have got a connection from a remote
hudakz	3:5b17e4656dd0	1399	host and have set up a new connection
hudakz	3:5b17e4656dd0	1400	for it, or an active connection has
hudakz	3:5b17e4656dd0	1401	been successfully established. */
hudakz	3:5b17e4656dd0	1402
hudakz	8:4acb22344932	1403	#define UIP_TIMEDOUT 128 /* The connection has been aborted due to
hudakz	4:d774541a34da	1404	too many retransmissions. */
hudakz	3:5b17e4656dd0	1405
hudakz	3:5b17e4656dd0	1406	/* uip_process(flag):
hudakz	3:5b17e4656dd0	1407	*
hudakz	8:4acb22344932	1408	* The actual UIP function which does all the work.
hudakz	3:5b17e4656dd0	1409	*/
hudakz	8:4acb22344932	1410	void uip_process(u8_t flag);
hudakz	3:5b17e4656dd0	1411
hudakz	3:5b17e4656dd0	1412	/* The following flags are passed as an argument to the uip_process()
hudakz	3:5b17e4656dd0	1413	function. They are used to distinguish between the two cases where
hudakz	3:5b17e4656dd0	1414	uip_process() is called. It can be called either because we have
hudakz	3:5b17e4656dd0	1415	incoming data that should be processed, or because the periodic
hudakz	3:5b17e4656dd0	1416	timer has fired. These values are never used directly, but only in
hudakz	3:5b17e4656dd0	1417	the macrose defined in this file. */
hudakz	8:4acb22344932	1418
hudakz	9:a156d3de5647	1419	#define UIP_DATA 1 /* Tells UIP that there is incoming
hudakz	9:a156d3de5647	1420	data in the uip_buf buffer. The
hudakz	9:a156d3de5647	1421	length of the data is stored in the
hudakz	9:a156d3de5647	1422	global variable uip_len.
hudakz	9:a156d3de5647	1423	*/
hudakz	9:a156d3de5647	1424	#define UIP_TIMER 2 /* Tells UIP that the periodic timer has fired. */
hudakz	9:a156d3de5647	1425	#define UIP_POLL_REQUEST 3 /* Tells UIP that a connection should be polled. */
hudakz	9:a156d3de5647	1426	#define UIP_UDP_SEND_CONN 4 /* Tells UIP that a UDP datagram should be constructed in the uip_buf buffer. */
hudakz	8:4acb22344932	1427
hudakz	4:d774541a34da	1428	#if UIP_UDP
hudakz	8:4acb22344932	1429	#define UIP_UDP_TIMER 5
hudakz	4:d774541a34da	1430	#endif /* UIP_UDP */
hudakz	3:5b17e4656dd0	1431
hudakz	3:5b17e4656dd0	1432	/* The TCP states used in the uip_conn->tcpstateflags. */
hudakz	8:4acb22344932	1433
hudakz	4:d774541a34da	1434	#define UIP_CLOSED 0
hudakz	4:d774541a34da	1435	#define UIP_SYN_RCVD 1
hudakz	4:d774541a34da	1436	#define UIP_SYN_SENT 2
hudakz	4:d774541a34da	1437	#define UIP_ESTABLISHED 3
hudakz	4:d774541a34da	1438	#define UIP_FIN_WAIT_1 4
hudakz	4:d774541a34da	1439	#define UIP_FIN_WAIT_2 5
hudakz	4:d774541a34da	1440	#define UIP_CLOSING 6
hudakz	4:d774541a34da	1441	#define UIP_TIME_WAIT 7
hudakz	4:d774541a34da	1442	#define UIP_LAST_ACK 8
hudakz	4:d774541a34da	1443	#define UIP_TS_MASK 15
hudakz	8:4acb22344932	1444
hudakz	8:4acb22344932	1445	#define UIP_STOPPED 16
hudakz	3:5b17e4656dd0	1446
hudakz	3:5b17e4656dd0	1447	/* The TCP and IP headers. */
hudakz	8:4acb22344932	1448	struct uip_tcpip_hdr
hudakz	8:4acb22344932	1449	{
hudakz	4:d774541a34da	1450	#if UIP_CONF_IPV6
hudakz	8:4acb22344932	1451	/* IPv6 header. */
hudakz	8:4acb22344932	1452	u8_t vtc, tcflow;
hudakz	8:4acb22344932	1453	u16_t flow;
hudakz	8:4acb22344932	1454	u8_t len[2];
hudakz	8:4acb22344932	1455	u8_t proto, ttl;
hudakz	8:4acb22344932	1456	uip_ip6addr_t srcipaddr, destipaddr;
hudakz	4:d774541a34da	1457	#else /* UIP_CONF_IPV6 */
hudakz	8:4acb22344932	1458	/* IPv4 header. */
hudakz	8:4acb22344932	1459
hudakz	8:4acb22344932	1460	u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
hudakz	8:4acb22344932	1461	u16_t ipchksum;
hudakz	8:4acb22344932	1462	u16_t srcipaddr[2], destipaddr[2];
hudakz	4:d774541a34da	1463	#endif /* UIP_CONF_IPV6 */
hudakz	8:4acb22344932	1464
hudakz	8:4acb22344932	1465	/* TCP header. */
hudakz	8:4acb22344932	1466
hudakz	8:4acb22344932	1467	u16_t srcport, destport;
hudakz	8:4acb22344932	1468	u8_t seqno[4], ackno[4], tcpoffset, flags, wnd[2];
hudakz	8:4acb22344932	1469	u16_t tcpchksum;
hudakz	8:4acb22344932	1470	u8_t urgp[2];
hudakz	8:4acb22344932	1471	u8_t optdata[4];
hudakz	3:5b17e4656dd0	1472	};
hudakz	3:5b17e4656dd0	1473
hudakz	3:5b17e4656dd0	1474	/* The ICMP and IP headers. */
hudakz	8:4acb22344932	1475	struct uip_icmpip_hdr
hudakz	8:4acb22344932	1476	{
hudakz	4:d774541a34da	1477	#if UIP_CONF_IPV6
hudakz	8:4acb22344932	1478	/* IPv6 header. */
hudakz	8:4acb22344932	1479	u8_t vtc, tcf;
hudakz	8:4acb22344932	1480	u16_t flow;
hudakz	8:4acb22344932	1481	u8_t len[2];
hudakz	8:4acb22344932	1482	u8_t proto, ttl;
hudakz	8:4acb22344932	1483	uip_ip6addr_t srcipaddr, destipaddr;
hudakz	4:d774541a34da	1484	#else /* UIP_CONF_IPV6 */
hudakz	8:4acb22344932	1485	/* IPv4 header. */
hudakz	8:4acb22344932	1486
hudakz	8:4acb22344932	1487	u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
hudakz	8:4acb22344932	1488	u16_t ipchksum;
hudakz	8:4acb22344932	1489	u16_t srcipaddr[2], destipaddr[2];
hudakz	4:d774541a34da	1490	#endif /* UIP_CONF_IPV6 */
hudakz	8:4acb22344932	1491
hudakz	8:4acb22344932	1492	/* ICMP (echo) header. */
hudakz	8:4acb22344932	1493
hudakz	8:4acb22344932	1494	u8_t type, icode;
hudakz	8:4acb22344932	1495	u16_t icmpchksum;
hudakz	4:d774541a34da	1496	#if !UIP_CONF_IPV6
hudakz	8:4acb22344932	1497	u16_t id, seqno;
hudakz	4:d774541a34da	1498	#else /* !UIP_CONF_IPV6 */
hudakz	8:4acb22344932	1499	u8_t flags, reserved1, reserved2, reserved3;
hudakz	8:4acb22344932	1500	u8_t icmp6data[16];
hudakz	8:4acb22344932	1501	u8_t options[1];
hudakz	4:d774541a34da	1502	#endif /* !UIP_CONF_IPV6 */
hudakz	3:5b17e4656dd0	1503	};
hudakz	3:5b17e4656dd0	1504
hudakz	3:5b17e4656dd0	1505	/* The UDP and IP headers. */
hudakz	8:4acb22344932	1506	struct uip_udpip_hdr
hudakz	8:4acb22344932	1507	{
hudakz	4:d774541a34da	1508	#if UIP_CONF_IPV6
hudakz	8:4acb22344932	1509	/* IPv6 header. */
hudakz	8:4acb22344932	1510	u8_t vtc, tcf;
hudakz	8:4acb22344932	1511	u16_t flow;
hudakz	8:4acb22344932	1512	u8_t len[2];
hudakz	8:4acb22344932	1513	u8_t proto, ttl;
hudakz	8:4acb22344932	1514	uip_ip6addr_t srcipaddr, destipaddr;
hudakz	4:d774541a34da	1515	#else /* UIP_CONF_IPV6 */
hudakz	8:4acb22344932	1516	/* IP header. */
hudakz	8:4acb22344932	1517
hudakz	8:4acb22344932	1518	u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
hudakz	8:4acb22344932	1519	u16_t ipchksum;
hudakz	8:4acb22344932	1520	u16_t srcipaddr[2], destipaddr[2];
hudakz	4:d774541a34da	1521	#endif /* UIP_CONF_IPV6 */
hudakz	8:4acb22344932	1522
hudakz	8:4acb22344932	1523	/* UDP header. */
hudakz	8:4acb22344932	1524
hudakz	8:4acb22344932	1525	u16_t srcport, destport;
hudakz	8:4acb22344932	1526	u16_t udplen;
hudakz	8:4acb22344932	1527	u16_t udpchksum;
hudakz	4:d774541a34da	1528	};
hudakz	3:5b17e4656dd0	1529
hudakz	3:5b17e4656dd0	1530	/**
hudakz	3:5b17e4656dd0	1531	* The buffer size available for user data in the \ref uip_buf buffer.
hudakz	3:5b17e4656dd0	1532	*
hudakz	3:5b17e4656dd0	1533	* This macro holds the available size for user data in the \ref
hudakz	3:5b17e4656dd0	1534	* uip_buf buffer. The macro is intended to be used for checking
hudakz	3:5b17e4656dd0	1535	* bounds of available user data.
hudakz	3:5b17e4656dd0	1536	*
hudakz	3:5b17e4656dd0	1537	* Example:
hudakz	3:5b17e4656dd0	1538	\code
hudakz	3:5b17e4656dd0	1539	snprintf(uip_appdata, UIP_APPDATA_SIZE, "%u\n", i);
hudakz	3:5b17e4656dd0	1540	\endcode
hudakz	3:5b17e4656dd0	1541	*
hudakz	3:5b17e4656dd0	1542	* \hideinitializer
hudakz	3:5b17e4656dd0	1543	*/
hudakz	8:4acb22344932	1544	#define UIP_APPDATA_SIZE (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN)
hudakz	8:4acb22344932	1545	#define UIP_PROTO_ICMP 1
hudakz	8:4acb22344932	1546	#define UIP_PROTO_TCP 6
hudakz	8:4acb22344932	1547	#define UIP_PROTO_UDP 17
hudakz	8:4acb22344932	1548	#define UIP_PROTO_ICMP6 58
hudakz	3:5b17e4656dd0	1549
hudakz	3:5b17e4656dd0	1550	/* Header sizes. */
hudakz	8:4acb22344932	1551
hudakz	4:d774541a34da	1552	#if UIP_CONF_IPV6
hudakz	8:4acb22344932	1553	#define UIP_IPH_LEN 40
hudakz	4:d774541a34da	1554	#else /* UIP_CONF_IPV6 */
hudakz	8:4acb22344932	1555
hudakz	8:4acb22344932	1556	#define UIP_IPH_LEN 20 /* Size of IP header */
hudakz	4:d774541a34da	1557	#endif /* UIP_CONF_IPV6 */
hudakz	8:4acb22344932	1558
hudakz	8:4acb22344932	1559	#define UIP_UDPH_LEN 8 /* Size of UDP header */
hudakz	8:4acb22344932	1560
hudakz	8:4acb22344932	1561	#define UIP_TCPH_LEN 20 /* Size of TCP header */
hudakz	8:4acb22344932	1562
hudakz	8:4acb22344932	1563	#define UIP_IPUDPH_LEN (UIP_UDPH_LEN + UIP_IPH_LEN) /* Size of IP +
hudakz	4:d774541a34da	1564	UDP
hudakz	4:d774541a34da	1565	header */
hudakz	8:4acb22344932	1566
hudakz	8:4acb22344932	1567	#define UIP_IPTCPH_LEN (UIP_TCPH_LEN + UIP_IPH_LEN) /* Size of IP +
hudakz	4:d774541a34da	1568	TCP
hudakz	4:d774541a34da	1569	header */
hudakz	3:5b17e4656dd0	1570
hudakz	8:4acb22344932	1571	#define UIP_TCPIP_HLEN UIP_IPTCPH_LEN
hudakz	3:5b17e4656dd0	1572
hudakz	4:d774541a34da	1573	#if UIP_FIXEDADDR
hudakz	8:4acb22344932	1574	extern const uip_ipaddr_t uip_hostaddr, uip_netmask, uip_draddr;
hudakz	4:d774541a34da	1575	#else /* UIP_FIXEDADDR */
hudakz	8:4acb22344932	1576
hudakz	8:4acb22344932	1577	extern uip_ipaddr_t uip_hostaddr, uip_netmask, uip_draddr;
hudakz	4:d774541a34da	1578	#endif /* UIP_FIXEDADDR */
hudakz	3:5b17e4656dd0	1579
hudakz	3:5b17e4656dd0	1580	/**
hudakz	3:5b17e4656dd0	1581	* Representation of a 48-bit Ethernet address.
hudakz	3:5b17e4656dd0	1582	*/
hudakz	8:4acb22344932	1583
hudakz	8:4acb22344932	1584	struct uip_eth_addr
hudakz	8:4acb22344932	1585	{
hudakz	8:4acb22344932	1586	u8_t addr[6];
hudakz	3:5b17e4656dd0	1587	};
hudakz	3:5b17e4656dd0	1588
hudakz	3:5b17e4656dd0	1589	/**
hudakz	3:5b17e4656dd0	1590	* Calculate the Internet checksum over a buffer.
hudakz	3:5b17e4656dd0	1591	*
hudakz	3:5b17e4656dd0	1592	* The Internet checksum is the one's complement of the one's
hudakz	3:5b17e4656dd0	1593	* complement sum of all 16-bit words in the buffer.
hudakz	3:5b17e4656dd0	1594	*
hudakz	3:5b17e4656dd0	1595	* See RFC1071.
hudakz	3:5b17e4656dd0	1596	*
hudakz	3:5b17e4656dd0	1597	* \param buf A pointer to the buffer over which the checksum is to be
hudakz	3:5b17e4656dd0	1598	* computed.
hudakz	3:5b17e4656dd0	1599	*
hudakz	3:5b17e4656dd0	1600	* \param len The length of the buffer over which the checksum is to
hudakz	3:5b17e4656dd0	1601	* be computed.
hudakz	3:5b17e4656dd0	1602	*
hudakz	3:5b17e4656dd0	1603	* \return The Internet checksum of the buffer.
hudakz	3:5b17e4656dd0	1604	*/
hudakz	8:4acb22344932	1605	u16_t uip_chksum(u16_t* buf, u16_t len);
hudakz	3:5b17e4656dd0	1606
hudakz	3:5b17e4656dd0	1607	/**
hudakz	3:5b17e4656dd0	1608	* Calculate the IP header checksum of the packet header in uip_buf.
hudakz	3:5b17e4656dd0	1609	*
hudakz	3:5b17e4656dd0	1610	* The IP header checksum is the Internet checksum of the 20 bytes of
hudakz	3:5b17e4656dd0	1611	* the IP header.
hudakz	3:5b17e4656dd0	1612	*
hudakz	3:5b17e4656dd0	1613	* \return The IP header checksum of the IP header in the uip_buf
hudakz	3:5b17e4656dd0	1614	* buffer.
hudakz	3:5b17e4656dd0	1615	*/
hudakz	8:4acb22344932	1616	u16_t uip_ipchksum(void);
hudakz	3:5b17e4656dd0	1617
hudakz	3:5b17e4656dd0	1618	/**
hudakz	3:5b17e4656dd0	1619	* Calculate the TCP checksum of the packet in uip_buf and uip_appdata.
hudakz	3:5b17e4656dd0	1620	*
hudakz	3:5b17e4656dd0	1621	* The TCP checksum is the Internet checksum of data contents of the
hudakz	3:5b17e4656dd0	1622	* TCP segment, and a pseudo-header as defined in RFC793.
hudakz	3:5b17e4656dd0	1623	*
hudakz	3:5b17e4656dd0	1624	* \return The TCP checksum of the TCP segment in uip_buf and pointed
hudakz	3:5b17e4656dd0	1625	* to by uip_appdata.
hudakz	3:5b17e4656dd0	1626	*/
hudakz	8:4acb22344932	1627	u16_t uip_tcpchksum(void);
hudakz	3:5b17e4656dd0	1628
hudakz	3:5b17e4656dd0	1629	/**
hudakz	3:5b17e4656dd0	1630	* Calculate the UDP checksum of the packet in uip_buf and uip_appdata.
hudakz	3:5b17e4656dd0	1631	*
hudakz	3:5b17e4656dd0	1632	* The UDP checksum is the Internet checksum of data contents of the
hudakz	3:5b17e4656dd0	1633	* UDP segment, and a pseudo-header as defined in RFC768.
hudakz	3:5b17e4656dd0	1634	*
hudakz	3:5b17e4656dd0	1635	* \return The UDP checksum of the UDP segment in uip_buf and pointed
hudakz	3:5b17e4656dd0	1636	* to by uip_appdata.
hudakz	3:5b17e4656dd0	1637	*/
hudakz	8:4acb22344932	1638	u16_t uip_udpchksum(void);
hudakz	3:5b17e4656dd0	1639	#endif /* __UIP_H__ */
hudakz	3:5b17e4656dd0	1640
hudakz	3:5b17e4656dd0	1641	/** @} */

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Type:	Library
Created:	24 Sep 2020
Imports:	1
Forks:	0
Commits:	23
Dependents:	0
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Followers:	1

utility/uip.h@9:a156d3de5647, 2019-08-27 (annotated)

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