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uIP 1.0 based webserver for LPC1114 + ENC28J60

uip/uip.h@3:a2715e9c7737, 2014-06-30 (annotated)

Committer:: ban4jp
Date:: Mon Jun 30 16:00:08 2014 +0000
Revision:: 3:a2715e9c7737
Parent:: 0:685224d2f66d

backported from Contiki 2.7

Who changed what in which revision?

User	Revision	Line number	New contents of line
ban4jp	0:685224d2f66d	1
ban4jp	0:685224d2f66d	2	/**
ban4jp	0:685224d2f66d	3	* \addtogroup uip
ban4jp	0:685224d2f66d	4	* @{
ban4jp	0:685224d2f66d	5	*/
ban4jp	0:685224d2f66d	6
ban4jp	0:685224d2f66d	7	/**
ban4jp	0:685224d2f66d	8	* \file
ban4jp	0:685224d2f66d	9	* Header file for the uIP TCP/IP stack.
ban4jp	3:a2715e9c7737	10	* \author Adam Dunkels <adam@dunkels.com>
ban4jp	3:a2715e9c7737	11	* \author Julien Abeille <jabeille@cisco.com> (IPv6 related code)
ban4jp	3:a2715e9c7737	12	* \author Mathilde Durvy <mdurvy@cisco.com> (IPv6 related code)
ban4jp	0:685224d2f66d	13	*
ban4jp	0:685224d2f66d	14	* The uIP TCP/IP stack header file contains definitions for a number
ban4jp	0:685224d2f66d	15	* of C macros that are used by uIP programs as well as internal uIP
ban4jp	0:685224d2f66d	16	* structures, TCP/IP header structures and function declarations.
ban4jp	0:685224d2f66d	17	*
ban4jp	0:685224d2f66d	18	*/
ban4jp	0:685224d2f66d	19
ban4jp	0:685224d2f66d	20	/*
ban4jp	0:685224d2f66d	21	* Copyright (c) 2001-2003, Adam Dunkels.
ban4jp	0:685224d2f66d	22	* All rights reserved.
ban4jp	0:685224d2f66d	23	*
ban4jp	0:685224d2f66d	24	* Redistribution and use in source and binary forms, with or without
ban4jp	0:685224d2f66d	25	* modification, are permitted provided that the following conditions
ban4jp	0:685224d2f66d	26	* are met:
ban4jp	0:685224d2f66d	27	* 1. Redistributions of source code must retain the above copyright
ban4jp	0:685224d2f66d	28	* notice, this list of conditions and the following disclaimer.
ban4jp	0:685224d2f66d	29	* 2. Redistributions in binary form must reproduce the above copyright
ban4jp	0:685224d2f66d	30	* notice, this list of conditions and the following disclaimer in the
ban4jp	0:685224d2f66d	31	* documentation and/or other materials provided with the distribution.
ban4jp	0:685224d2f66d	32	* 3. The name of the author may not be used to endorse or promote
ban4jp	0:685224d2f66d	33	* products derived from this software without specific prior
ban4jp	0:685224d2f66d	34	* written permission.
ban4jp	0:685224d2f66d	35	*
ban4jp	0:685224d2f66d	36	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
ban4jp	0:685224d2f66d	37	* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
ban4jp	0:685224d2f66d	38	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ban4jp	0:685224d2f66d	39	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
ban4jp	0:685224d2f66d	40	* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
ban4jp	0:685224d2f66d	41	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
ban4jp	0:685224d2f66d	42	* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
ban4jp	0:685224d2f66d	43	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
ban4jp	0:685224d2f66d	44	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
ban4jp	0:685224d2f66d	45	* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
ban4jp	0:685224d2f66d	46	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ban4jp	0:685224d2f66d	47	*
ban4jp	0:685224d2f66d	48	* This file is part of the uIP TCP/IP stack.
ban4jp	0:685224d2f66d	49	*
ban4jp	0:685224d2f66d	50	*
ban4jp	0:685224d2f66d	51	*/
ban4jp	0:685224d2f66d	52
ban4jp	0:685224d2f66d	53	#ifndef __UIP_H__
ban4jp	0:685224d2f66d	54	#define __UIP_H__
ban4jp	0:685224d2f66d	55
ban4jp	0:685224d2f66d	56	#include "uipopt.h"
ban4jp	0:685224d2f66d	57
ban4jp	0:685224d2f66d	58	/**
ban4jp	3:a2715e9c7737	59	* Representation of an IP address.
ban4jp	0:685224d2f66d	60	*
ban4jp	0:685224d2f66d	61	*/
ban4jp	3:a2715e9c7737	62	typedef union uip_ip4addr_t {
ban4jp	3:a2715e9c7737	63	uint8_t u8[4]; /* Initializer, must come first. */
ban4jp	3:a2715e9c7737	64	uint16_t u16[2];
ban4jp	3:a2715e9c7737	65	} uip_ip4addr_t;
ban4jp	3:a2715e9c7737	66
ban4jp	3:a2715e9c7737	67	typedef union uip_ip6addr_t {
ban4jp	3:a2715e9c7737	68	uint8_t u8[16]; /* Initializer, must come first. */
ban4jp	3:a2715e9c7737	69	uint16_t u16[8];
ban4jp	3:a2715e9c7737	70	} uip_ip6addr_t;
ban4jp	3:a2715e9c7737	71
ban4jp	0:685224d2f66d	72	#if UIP_CONF_IPV6
ban4jp	0:685224d2f66d	73	typedef uip_ip6addr_t uip_ipaddr_t;
ban4jp	0:685224d2f66d	74	#else /* UIP_CONF_IPV6 */
ban4jp	0:685224d2f66d	75	typedef uip_ip4addr_t uip_ipaddr_t;
ban4jp	0:685224d2f66d	76	#endif /* UIP_CONF_IPV6 */
ban4jp	0:685224d2f66d	77
ban4jp	3:a2715e9c7737	78
ban4jp	3:a2715e9c7737	79	/---------------------------------------------------------------------------/
ban4jp	3:a2715e9c7737	80
ban4jp	3:a2715e9c7737	81	/** \brief 16 bit 802.15.4 address */
ban4jp	3:a2715e9c7737	82	typedef struct uip_802154_shortaddr {
ban4jp	3:a2715e9c7737	83	uint8_t addr[2];
ban4jp	3:a2715e9c7737	84	} uip_802154_shortaddr;
ban4jp	3:a2715e9c7737	85	/** \brief 64 bit 802.15.4 address */
ban4jp	3:a2715e9c7737	86	typedef struct uip_802154_longaddr {
ban4jp	3:a2715e9c7737	87	uint8_t addr[8];
ban4jp	3:a2715e9c7737	88	} uip_802154_longaddr;
ban4jp	3:a2715e9c7737	89
ban4jp	3:a2715e9c7737	90	/** \brief 802.11 address */
ban4jp	3:a2715e9c7737	91	typedef struct uip_80211_addr {
ban4jp	3:a2715e9c7737	92	uint8_t addr[6];
ban4jp	3:a2715e9c7737	93	} uip_80211_addr;
ban4jp	3:a2715e9c7737	94
ban4jp	3:a2715e9c7737	95	/** \brief 802.3 address */
ban4jp	3:a2715e9c7737	96	typedef struct uip_eth_addr {
ban4jp	3:a2715e9c7737	97	uint8_t addr[6];
ban4jp	3:a2715e9c7737	98	} uip_eth_addr;
ban4jp	3:a2715e9c7737	99
ban4jp	3:a2715e9c7737	100
ban4jp	3:a2715e9c7737	101	#if UIP_CONF_LL_802154
ban4jp	3:a2715e9c7737	102	/** \brief 802.15.4 address */
ban4jp	3:a2715e9c7737	103	typedef uip_802154_longaddr uip_lladdr_t;
ban4jp	3:a2715e9c7737	104	#define UIP_802154_SHORTADDR_LEN 2
ban4jp	3:a2715e9c7737	105	#define UIP_802154_LONGADDR_LEN 8
ban4jp	3:a2715e9c7737	106	#define UIP_LLADDR_LEN UIP_802154_LONGADDR_LEN
ban4jp	3:a2715e9c7737	107	#else /UIP_CONF_LL_802154/
ban4jp	3:a2715e9c7737	108	#if UIP_CONF_LL_80211
ban4jp	3:a2715e9c7737	109	/** \brief 802.11 address */
ban4jp	3:a2715e9c7737	110	typedef uip_80211_addr uip_lladdr_t;
ban4jp	3:a2715e9c7737	111	#define UIP_LLADDR_LEN 6
ban4jp	3:a2715e9c7737	112	#else /UIP_CONF_LL_80211/
ban4jp	3:a2715e9c7737	113	/** \brief Ethernet address */
ban4jp	3:a2715e9c7737	114	typedef uip_eth_addr uip_lladdr_t;
ban4jp	3:a2715e9c7737	115	#define UIP_LLADDR_LEN 6
ban4jp	3:a2715e9c7737	116	#endif /UIP_CONF_LL_80211/
ban4jp	3:a2715e9c7737	117	#endif /UIP_CONF_LL_802154/
ban4jp	3:a2715e9c7737	118
ban4jp	3:a2715e9c7737	119	//#include "tcpip.h"
ban4jp	3:a2715e9c7737	120
ban4jp	0:685224d2f66d	121	/---------------------------------------------------------------------------/
ban4jp	0:685224d2f66d	122	/* First, the functions that should be called from the
ban4jp	3:a2715e9c7737	123	* system. Initialization, the periodic timer, and incoming packets are
ban4jp	0:685224d2f66d	124	* handled by the following three functions.
ban4jp	0:685224d2f66d	125	*/
ban4jp	0:685224d2f66d	126	/**
ban4jp	0:685224d2f66d	127	* \defgroup uipconffunc uIP configuration functions
ban4jp	0:685224d2f66d	128	* @{
ban4jp	0:685224d2f66d	129	*
ban4jp	0:685224d2f66d	130	* The uIP configuration functions are used for setting run-time
ban4jp	0:685224d2f66d	131	* parameters in uIP such as IP addresses.
ban4jp	0:685224d2f66d	132	*/
ban4jp	0:685224d2f66d	133
ban4jp	0:685224d2f66d	134	/**
ban4jp	0:685224d2f66d	135	* Set the IP address of this host.
ban4jp	0:685224d2f66d	136	*
ban4jp	0:685224d2f66d	137	* The IP address is represented as a 4-byte array where the first
ban4jp	0:685224d2f66d	138	* octet of the IP address is put in the first member of the 4-byte
ban4jp	0:685224d2f66d	139	* array.
ban4jp	0:685224d2f66d	140	*
ban4jp	0:685224d2f66d	141	* Example:
ban4jp	0:685224d2f66d	142	\code
ban4jp	0:685224d2f66d	143
ban4jp	0:685224d2f66d	144	uip_ipaddr_t addr;
ban4jp	0:685224d2f66d	145
ban4jp	0:685224d2f66d	146	uip_ipaddr(&addr, 192,168,1,2);
ban4jp	0:685224d2f66d	147	uip_sethostaddr(&addr);
ban4jp	0:685224d2f66d	148
ban4jp	0:685224d2f66d	149	\endcode
ban4jp	0:685224d2f66d	150	* \param addr A pointer to an IP address of type uip_ipaddr_t;
ban4jp	0:685224d2f66d	151	*
ban4jp	0:685224d2f66d	152	* \sa uip_ipaddr()
ban4jp	0:685224d2f66d	153	*
ban4jp	0:685224d2f66d	154	* \hideinitializer
ban4jp	0:685224d2f66d	155	*/
ban4jp	3:a2715e9c7737	156	#define uip_sethostaddr(addr) uip_ipaddr_copy(&uip_hostaddr, (addr))
ban4jp	0:685224d2f66d	157
ban4jp	0:685224d2f66d	158	/**
ban4jp	0:685224d2f66d	159	* Get the IP address of this host.
ban4jp	0:685224d2f66d	160	*
ban4jp	0:685224d2f66d	161	* The IP address is represented as a 4-byte array where the first
ban4jp	0:685224d2f66d	162	* octet of the IP address is put in the first member of the 4-byte
ban4jp	0:685224d2f66d	163	* array.
ban4jp	0:685224d2f66d	164	*
ban4jp	0:685224d2f66d	165	* Example:
ban4jp	0:685224d2f66d	166	\code
ban4jp	0:685224d2f66d	167	uip_ipaddr_t hostaddr;
ban4jp	0:685224d2f66d	168
ban4jp	0:685224d2f66d	169	uip_gethostaddr(&hostaddr);
ban4jp	0:685224d2f66d	170	\endcode
ban4jp	0:685224d2f66d	171	* \param addr A pointer to a uip_ipaddr_t variable that will be
ban4jp	0:685224d2f66d	172	* filled in with the currently configured IP address.
ban4jp	0:685224d2f66d	173	*
ban4jp	0:685224d2f66d	174	* \hideinitializer
ban4jp	0:685224d2f66d	175	*/
ban4jp	3:a2715e9c7737	176	#define uip_gethostaddr(addr) uip_ipaddr_copy((addr), &uip_hostaddr)
ban4jp	0:685224d2f66d	177
ban4jp	0:685224d2f66d	178	/**
ban4jp	0:685224d2f66d	179	* Set the default router's IP address.
ban4jp	0:685224d2f66d	180	*
ban4jp	0:685224d2f66d	181	* \param addr A pointer to a uip_ipaddr_t variable containing the IP
ban4jp	0:685224d2f66d	182	* address of the default router.
ban4jp	0:685224d2f66d	183	*
ban4jp	0:685224d2f66d	184	* \sa uip_ipaddr()
ban4jp	0:685224d2f66d	185	*
ban4jp	0:685224d2f66d	186	* \hideinitializer
ban4jp	0:685224d2f66d	187	*/
ban4jp	3:a2715e9c7737	188	#define uip_setdraddr(addr) uip_ipaddr_copy(&uip_draddr, (addr))
ban4jp	0:685224d2f66d	189
ban4jp	0:685224d2f66d	190	/**
ban4jp	0:685224d2f66d	191	* Set the netmask.
ban4jp	0:685224d2f66d	192	*
ban4jp	0:685224d2f66d	193	* \param addr A pointer to a uip_ipaddr_t variable containing the IP
ban4jp	0:685224d2f66d	194	* address of the netmask.
ban4jp	0:685224d2f66d	195	*
ban4jp	0:685224d2f66d	196	* \sa uip_ipaddr()
ban4jp	0:685224d2f66d	197	*
ban4jp	0:685224d2f66d	198	* \hideinitializer
ban4jp	0:685224d2f66d	199	*/
ban4jp	3:a2715e9c7737	200	#define uip_setnetmask(addr) uip_ipaddr_copy(&uip_netmask, (addr))
ban4jp	0:685224d2f66d	201
ban4jp	0:685224d2f66d	202
ban4jp	0:685224d2f66d	203	/**
ban4jp	0:685224d2f66d	204	* Get the default router's IP address.
ban4jp	0:685224d2f66d	205	*
ban4jp	0:685224d2f66d	206	* \param addr A pointer to a uip_ipaddr_t variable that will be
ban4jp	0:685224d2f66d	207	* filled in with the IP address of the default router.
ban4jp	0:685224d2f66d	208	*
ban4jp	0:685224d2f66d	209	* \hideinitializer
ban4jp	0:685224d2f66d	210	*/
ban4jp	3:a2715e9c7737	211	#define uip_getdraddr(addr) uip_ipaddr_copy((addr), &uip_draddr)
ban4jp	0:685224d2f66d	212
ban4jp	0:685224d2f66d	213	/**
ban4jp	0:685224d2f66d	214	* Get the netmask.
ban4jp	0:685224d2f66d	215	*
ban4jp	0:685224d2f66d	216	* \param addr A pointer to a uip_ipaddr_t variable that will be
ban4jp	0:685224d2f66d	217	* filled in with the value of the netmask.
ban4jp	0:685224d2f66d	218	*
ban4jp	0:685224d2f66d	219	* \hideinitializer
ban4jp	0:685224d2f66d	220	*/
ban4jp	3:a2715e9c7737	221	#define uip_getnetmask(addr) uip_ipaddr_copy((addr), &uip_netmask)
ban4jp	0:685224d2f66d	222
ban4jp	0:685224d2f66d	223	/** @} */
ban4jp	0:685224d2f66d	224
ban4jp	0:685224d2f66d	225	/**
ban4jp	0:685224d2f66d	226	* \defgroup uipinit uIP initialization functions
ban4jp	0:685224d2f66d	227	* @{
ban4jp	0:685224d2f66d	228	*
ban4jp	0:685224d2f66d	229	* The uIP initialization functions are used for booting uIP.
ban4jp	0:685224d2f66d	230	*/
ban4jp	0:685224d2f66d	231
ban4jp	0:685224d2f66d	232	/**
ban4jp	0:685224d2f66d	233	* uIP initialization function.
ban4jp	0:685224d2f66d	234	*
ban4jp	0:685224d2f66d	235	* This function should be called at boot up to initilize the uIP
ban4jp	0:685224d2f66d	236	* TCP/IP stack.
ban4jp	0:685224d2f66d	237	*/
ban4jp	0:685224d2f66d	238	void uip_init(void);
ban4jp	0:685224d2f66d	239
ban4jp	0:685224d2f66d	240	/**
ban4jp	0:685224d2f66d	241	* uIP initialization function.
ban4jp	0:685224d2f66d	242	*
ban4jp	0:685224d2f66d	243	* This function may be used at boot time to set the initial ip_id.
ban4jp	0:685224d2f66d	244	*/
ban4jp	3:a2715e9c7737	245	void uip_setipid(uint16_t id);
ban4jp	0:685224d2f66d	246
ban4jp	0:685224d2f66d	247	/** @} */
ban4jp	0:685224d2f66d	248
ban4jp	0:685224d2f66d	249	/**
ban4jp	0:685224d2f66d	250	* \defgroup uipdevfunc uIP device driver functions
ban4jp	0:685224d2f66d	251	* @{
ban4jp	0:685224d2f66d	252	*
ban4jp	0:685224d2f66d	253	* These functions are used by a network device driver for interacting
ban4jp	0:685224d2f66d	254	* with uIP.
ban4jp	0:685224d2f66d	255	*/
ban4jp	0:685224d2f66d	256
ban4jp	0:685224d2f66d	257	/**
ban4jp	0:685224d2f66d	258	* Process an incoming packet.
ban4jp	0:685224d2f66d	259	*
ban4jp	0:685224d2f66d	260	* This function should be called when the device driver has received
ban4jp	0:685224d2f66d	261	* a packet from the network. The packet from the device driver must
ban4jp	0:685224d2f66d	262	* be present in the uip_buf buffer, and the length of the packet
ban4jp	0:685224d2f66d	263	* should be placed in the uip_len variable.
ban4jp	0:685224d2f66d	264	*
ban4jp	0:685224d2f66d	265	* When the function returns, there may be an outbound packet placed
ban4jp	0:685224d2f66d	266	* in the uip_buf packet buffer. If so, the uip_len variable is set to
ban4jp	0:685224d2f66d	267	* the length of the packet. If no packet is to be sent out, the
ban4jp	0:685224d2f66d	268	* uip_len variable is set to 0.
ban4jp	0:685224d2f66d	269	*
ban4jp	0:685224d2f66d	270	* The usual way of calling the function is presented by the source
ban4jp	0:685224d2f66d	271	* code below.
ban4jp	0:685224d2f66d	272	\code
ban4jp	3:a2715e9c7737	273	uip_len = devicedriver_poll();
ban4jp	3:a2715e9c7737	274	if(uip_len > 0) {
ban4jp	3:a2715e9c7737	275	uip_input();
ban4jp	3:a2715e9c7737	276	if(uip_len > 0) {
ban4jp	3:a2715e9c7737	277	devicedriver_send();
ban4jp	3:a2715e9c7737	278	}
ban4jp	3:a2715e9c7737	279	}
ban4jp	0:685224d2f66d	280	\endcode
ban4jp	0:685224d2f66d	281	*
ban4jp	0:685224d2f66d	282	* \note If you are writing a uIP device driver that needs ARP
ban4jp	0:685224d2f66d	283	* (Address Resolution Protocol), e.g., when running uIP over
ban4jp	0:685224d2f66d	284	* Ethernet, you will need to call the uIP ARP code before calling
ban4jp	0:685224d2f66d	285	* this function:
ban4jp	0:685224d2f66d	286	\code
ban4jp	3:a2715e9c7737	287	#define BUF ((struct uip_eth_hdr *)&uip_buf[0])
ban4jp	3:a2715e9c7737	288	uip_len = ethernet_devicedrver_poll();
ban4jp	3:a2715e9c7737	289	if(uip_len > 0) {
ban4jp	3:a2715e9c7737	290	if(BUF->type == UIP_HTONS(UIP_ETHTYPE_IP)) {
ban4jp	3:a2715e9c7737	291	uip_arp_ipin();
ban4jp	3:a2715e9c7737	292	uip_input();
ban4jp	3:a2715e9c7737	293	if(uip_len > 0) {
ban4jp	3:a2715e9c7737	294	uip_arp_out();
ban4jp	3:a2715e9c7737	295	ethernet_devicedriver_send();
ban4jp	3:a2715e9c7737	296	}
ban4jp	3:a2715e9c7737	297	} else if(BUF->type == UIP_HTONS(UIP_ETHTYPE_ARP)) {
ban4jp	3:a2715e9c7737	298	uip_arp_arpin();
ban4jp	3:a2715e9c7737	299	if(uip_len > 0) {
ban4jp	3:a2715e9c7737	300	ethernet_devicedriver_send();
ban4jp	3:a2715e9c7737	301	}
ban4jp	3:a2715e9c7737	302	}
ban4jp	0:685224d2f66d	303	\endcode
ban4jp	0:685224d2f66d	304	*
ban4jp	0:685224d2f66d	305	* \hideinitializer
ban4jp	0:685224d2f66d	306	*/
ban4jp	0:685224d2f66d	307	#define uip_input() uip_process(UIP_DATA)
ban4jp	0:685224d2f66d	308
ban4jp	3:a2715e9c7737	309
ban4jp	0:685224d2f66d	310	/**
ban4jp	0:685224d2f66d	311	* Periodic processing for a connection identified by its number.
ban4jp	0:685224d2f66d	312	*
ban4jp	0:685224d2f66d	313	* This function does the necessary periodic processing (timers,
ban4jp	0:685224d2f66d	314	* polling) for a uIP TCP conneciton, and should be called when the
ban4jp	0:685224d2f66d	315	* periodic uIP timer goes off. It should be called for every
ban4jp	0:685224d2f66d	316	* connection, regardless of whether they are open of closed.
ban4jp	0:685224d2f66d	317	*
ban4jp	0:685224d2f66d	318	* When the function returns, it may have an outbound packet waiting
ban4jp	0:685224d2f66d	319	* for service in the uIP packet buffer, and if so the uip_len
ban4jp	0:685224d2f66d	320	* variable is set to a value larger than zero. The device driver
ban4jp	0:685224d2f66d	321	* should be called to send out the packet.
ban4jp	0:685224d2f66d	322	*
ban4jp	3:a2715e9c7737	323	* The usual way of calling the function is through a for() loop like
ban4jp	0:685224d2f66d	324	* this:
ban4jp	0:685224d2f66d	325	\code
ban4jp	3:a2715e9c7737	326	for(i = 0; i < UIP_CONNS; ++i) {
ban4jp	3:a2715e9c7737	327	uip_periodic(i);
ban4jp	3:a2715e9c7737	328	if(uip_len > 0) {
ban4jp	3:a2715e9c7737	329	devicedriver_send();
ban4jp	3:a2715e9c7737	330	}
ban4jp	3:a2715e9c7737	331	}
ban4jp	0:685224d2f66d	332	\endcode
ban4jp	0:685224d2f66d	333	*
ban4jp	0:685224d2f66d	334	* \note If you are writing a uIP device driver that needs ARP
ban4jp	0:685224d2f66d	335	* (Address Resolution Protocol), e.g., when running uIP over
ban4jp	0:685224d2f66d	336	* Ethernet, you will need to call the uip_arp_out() function before
ban4jp	0:685224d2f66d	337	* calling the device driver:
ban4jp	0:685224d2f66d	338	\code
ban4jp	3:a2715e9c7737	339	for(i = 0; i < UIP_CONNS; ++i) {
ban4jp	3:a2715e9c7737	340	uip_periodic(i);
ban4jp	3:a2715e9c7737	341	if(uip_len > 0) {
ban4jp	3:a2715e9c7737	342	uip_arp_out();
ban4jp	3:a2715e9c7737	343	ethernet_devicedriver_send();
ban4jp	3:a2715e9c7737	344	}
ban4jp	3:a2715e9c7737	345	}
ban4jp	0:685224d2f66d	346	\endcode
ban4jp	0:685224d2f66d	347	*
ban4jp	0:685224d2f66d	348	* \param conn The number of the connection which is to be periodically polled.
ban4jp	0:685224d2f66d	349	*
ban4jp	0:685224d2f66d	350	* \hideinitializer
ban4jp	0:685224d2f66d	351	*/
ban4jp	3:a2715e9c7737	352	#if UIP_TCP
ban4jp	3:a2715e9c7737	353	#define uip_periodic(conn) do { uip_conn = &uip_conns[conn]; \
ban4jp	3:a2715e9c7737	354	uip_process(UIP_TIMER); } while (0)
ban4jp	0:685224d2f66d	355
ban4jp	0:685224d2f66d	356	/**
ban4jp	0:685224d2f66d	357	*
ban4jp	0:685224d2f66d	358	*
ban4jp	0:685224d2f66d	359	*/
ban4jp	0:685224d2f66d	360	#define uip_conn_active(conn) (uip_conns[conn].tcpstateflags != UIP_CLOSED)
ban4jp	0:685224d2f66d	361
ban4jp	0:685224d2f66d	362	/**
ban4jp	0:685224d2f66d	363	* Perform periodic processing for a connection identified by a pointer
ban4jp	0:685224d2f66d	364	* to its structure.
ban4jp	0:685224d2f66d	365	*
ban4jp	0:685224d2f66d	366	* Same as uip_periodic() but takes a pointer to the actual uip_conn
ban4jp	0:685224d2f66d	367	* struct instead of an integer as its argument. This function can be
ban4jp	0:685224d2f66d	368	* used to force periodic processing of a specific connection.
ban4jp	0:685224d2f66d	369	*
ban4jp	0:685224d2f66d	370	* \param conn A pointer to the uip_conn struct for the connection to
ban4jp	0:685224d2f66d	371	* be processed.
ban4jp	0:685224d2f66d	372	*
ban4jp	0:685224d2f66d	373	* \hideinitializer
ban4jp	0:685224d2f66d	374	*/
ban4jp	3:a2715e9c7737	375	#define uip_periodic_conn(conn) do { uip_conn = conn; \
ban4jp	3:a2715e9c7737	376	uip_process(UIP_TIMER); } while (0)
ban4jp	0:685224d2f66d	377
ban4jp	0:685224d2f66d	378	/**
ban4jp	3:a2715e9c7737	379	* Request that a particular connection should be polled.
ban4jp	0:685224d2f66d	380	*
ban4jp	0:685224d2f66d	381	* Similar to uip_periodic_conn() but does not perform any timer
ban4jp	0:685224d2f66d	382	* processing. The application is polled for new data.
ban4jp	0:685224d2f66d	383	*
ban4jp	0:685224d2f66d	384	* \param conn A pointer to the uip_conn struct for the connection to
ban4jp	0:685224d2f66d	385	* be processed.
ban4jp	0:685224d2f66d	386	*
ban4jp	0:685224d2f66d	387	* \hideinitializer
ban4jp	0:685224d2f66d	388	*/
ban4jp	3:a2715e9c7737	389	#define uip_poll_conn(conn) do { uip_conn = conn; \
ban4jp	3:a2715e9c7737	390	uip_process(UIP_POLL_REQUEST); } while (0)
ban4jp	0:685224d2f66d	391
ban4jp	3:a2715e9c7737	392	#endif /* UIP_TCP */
ban4jp	0:685224d2f66d	393
ban4jp	0:685224d2f66d	394	#if UIP_UDP
ban4jp	0:685224d2f66d	395	/**
ban4jp	0:685224d2f66d	396	* Periodic processing for a UDP connection identified by its number.
ban4jp	0:685224d2f66d	397	*
ban4jp	0:685224d2f66d	398	* This function is essentially the same as uip_periodic(), but for
ban4jp	0:685224d2f66d	399	* UDP connections. It is called in a similar fashion as the
ban4jp	0:685224d2f66d	400	* uip_periodic() function:
ban4jp	0:685224d2f66d	401	\code
ban4jp	3:a2715e9c7737	402	for(i = 0; i < UIP_UDP_CONNS; i++) {
ban4jp	3:a2715e9c7737	403	uip_udp_periodic(i);
ban4jp	3:a2715e9c7737	404	if(uip_len > 0) {
ban4jp	3:a2715e9c7737	405	devicedriver_send();
ban4jp	3:a2715e9c7737	406	}
ban4jp	3:a2715e9c7737	407	}
ban4jp	0:685224d2f66d	408	\endcode
ban4jp	0:685224d2f66d	409	*
ban4jp	0:685224d2f66d	410	* \note As for the uip_periodic() function, special care has to be
ban4jp	0:685224d2f66d	411	* taken when using uIP together with ARP and Ethernet:
ban4jp	0:685224d2f66d	412	\code
ban4jp	3:a2715e9c7737	413	for(i = 0; i < UIP_UDP_CONNS; i++) {
ban4jp	3:a2715e9c7737	414	uip_udp_periodic(i);
ban4jp	3:a2715e9c7737	415	if(uip_len > 0) {
ban4jp	3:a2715e9c7737	416	uip_arp_out();
ban4jp	3:a2715e9c7737	417	ethernet_devicedriver_send();
ban4jp	3:a2715e9c7737	418	}
ban4jp	3:a2715e9c7737	419	}
ban4jp	0:685224d2f66d	420	\endcode
ban4jp	0:685224d2f66d	421	*
ban4jp	0:685224d2f66d	422	* \param conn The number of the UDP connection to be processed.
ban4jp	0:685224d2f66d	423	*
ban4jp	0:685224d2f66d	424	* \hideinitializer
ban4jp	0:685224d2f66d	425	*/
ban4jp	0:685224d2f66d	426	#define uip_udp_periodic(conn) do { uip_udp_conn = &uip_udp_conns[conn]; \
ban4jp	3:a2715e9c7737	427	uip_process(UIP_UDP_TIMER); } while(0)
ban4jp	0:685224d2f66d	428
ban4jp	0:685224d2f66d	429	/**
ban4jp	0:685224d2f66d	430	* Periodic processing for a UDP connection identified by a pointer to
ban4jp	0:685224d2f66d	431	* its structure.
ban4jp	0:685224d2f66d	432	*
ban4jp	0:685224d2f66d	433	* Same as uip_udp_periodic() but takes a pointer to the actual
ban4jp	0:685224d2f66d	434	* uip_conn struct instead of an integer as its argument. This
ban4jp	0:685224d2f66d	435	* function can be used to force periodic processing of a specific
ban4jp	0:685224d2f66d	436	* connection.
ban4jp	0:685224d2f66d	437	*
ban4jp	0:685224d2f66d	438	* \param conn A pointer to the uip_udp_conn struct for the connection
ban4jp	0:685224d2f66d	439	* to be processed.
ban4jp	0:685224d2f66d	440	*
ban4jp	0:685224d2f66d	441	* \hideinitializer
ban4jp	0:685224d2f66d	442	*/
ban4jp	3:a2715e9c7737	443	#define uip_udp_periodic_conn(conn) do { uip_udp_conn = conn; \
ban4jp	3:a2715e9c7737	444	uip_process(UIP_UDP_TIMER); } while(0)
ban4jp	3:a2715e9c7737	445	#endif /* UIP_UDP */
ban4jp	0:685224d2f66d	446
ban4jp	3:a2715e9c7737	447	/** \brief Abandon the reassembly of the current packet */
ban4jp	3:a2715e9c7737	448	void uip_reass_over(void);
ban4jp	0:685224d2f66d	449
ban4jp	0:685224d2f66d	450	/**
ban4jp	0:685224d2f66d	451	* The uIP packet buffer.
ban4jp	0:685224d2f66d	452	*
ban4jp	0:685224d2f66d	453	* The uip_buf array is used to hold incoming and outgoing
ban4jp	0:685224d2f66d	454	* packets. The device driver should place incoming data into this
ban4jp	0:685224d2f66d	455	* buffer. When sending data, the device driver should read the link
ban4jp	0:685224d2f66d	456	* level headers and the TCP/IP headers from this buffer. The size of
ban4jp	0:685224d2f66d	457	* the link level headers is configured by the UIP_LLH_LEN define.
ban4jp	0:685224d2f66d	458	*
ban4jp	0:685224d2f66d	459	* \note The application data need not be placed in this buffer, so
ban4jp	0:685224d2f66d	460	* the device driver must read it from the place pointed to by the
ban4jp	0:685224d2f66d	461	* uip_appdata pointer as illustrated by the following example:
ban4jp	0:685224d2f66d	462	\code
ban4jp	0:685224d2f66d	463	void
ban4jp	0:685224d2f66d	464	devicedriver_send(void)
ban4jp	0:685224d2f66d	465	{
ban4jp	3:a2715e9c7737	466	hwsend(&uip_buf[0], UIP_LLH_LEN);
ban4jp	3:a2715e9c7737	467	if(uip_len <= UIP_LLH_LEN + UIP_TCPIP_HLEN) {
ban4jp	3:a2715e9c7737	468	hwsend(&uip_buf[UIP_LLH_LEN], uip_len - UIP_LLH_LEN);
ban4jp	3:a2715e9c7737	469	} else {
ban4jp	3:a2715e9c7737	470	hwsend(&uip_buf[UIP_LLH_LEN], UIP_TCPIP_HLEN);
ban4jp	3:a2715e9c7737	471	hwsend(uip_appdata, uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN);
ban4jp	3:a2715e9c7737	472	}
ban4jp	0:685224d2f66d	473	}
ban4jp	0:685224d2f66d	474	\endcode
ban4jp	3:a2715e9c7737	475	*/
ban4jp	3:a2715e9c7737	476
ban4jp	3:a2715e9c7737	477	typedef union {
ban4jp	3:a2715e9c7737	478	uint32_t u32[(UIP_BUFSIZE + 3) / 4];
ban4jp	3:a2715e9c7737	479	uint8_t u8[UIP_BUFSIZE];
ban4jp	3:a2715e9c7737	480	} uip_buf_t;
ban4jp	3:a2715e9c7737	481
ban4jp	3:a2715e9c7737	482	CCIF extern uip_buf_t uip_aligned_buf;
ban4jp	3:a2715e9c7737	483	#define uip_buf (uip_aligned_buf.u8)
ban4jp	3:a2715e9c7737	484
ban4jp	0:685224d2f66d	485
ban4jp	0:685224d2f66d	486	/** @} */
ban4jp	0:685224d2f66d	487
ban4jp	0:685224d2f66d	488	/---------------------------------------------------------------------------/
ban4jp	0:685224d2f66d	489	/* Functions that are used by the uIP application program. Opening and
ban4jp	0:685224d2f66d	490	* closing connections, sending and receiving data, etc. is all
ban4jp	0:685224d2f66d	491	* handled by the functions below.
ban4jp	3:a2715e9c7737	492	*/
ban4jp	0:685224d2f66d	493	/**
ban4jp	0:685224d2f66d	494	* \defgroup uipappfunc uIP application functions
ban4jp	0:685224d2f66d	495	* @{
ban4jp	0:685224d2f66d	496	*
ban4jp	0:685224d2f66d	497	* Functions used by an application running of top of uIP.
ban4jp	0:685224d2f66d	498	*/
ban4jp	0:685224d2f66d	499
ban4jp	0:685224d2f66d	500	/**
ban4jp	0:685224d2f66d	501	* Start listening to the specified port.
ban4jp	0:685224d2f66d	502	*
ban4jp	0:685224d2f66d	503	* \note Since this function expects the port number in network byte
ban4jp	3:a2715e9c7737	504	* order, a conversion using UIP_HTONS() or uip_htons() is necessary.
ban4jp	0:685224d2f66d	505	*
ban4jp	0:685224d2f66d	506	\code
ban4jp	3:a2715e9c7737	507	uip_listen(UIP_HTONS(80));
ban4jp	0:685224d2f66d	508	\endcode
ban4jp	0:685224d2f66d	509	*
ban4jp	0:685224d2f66d	510	* \param port A 16-bit port number in network byte order.
ban4jp	0:685224d2f66d	511	*/
ban4jp	3:a2715e9c7737	512	void uip_listen(uint16_t port);
ban4jp	0:685224d2f66d	513
ban4jp	0:685224d2f66d	514	/**
ban4jp	0:685224d2f66d	515	* Stop listening to the specified port.
ban4jp	0:685224d2f66d	516	*
ban4jp	0:685224d2f66d	517	* \note Since this function expects the port number in network byte
ban4jp	3:a2715e9c7737	518	* order, a conversion using UIP_HTONS() or uip_htons() is necessary.
ban4jp	0:685224d2f66d	519	*
ban4jp	0:685224d2f66d	520	\code
ban4jp	3:a2715e9c7737	521	uip_unlisten(UIP_HTONS(80));
ban4jp	0:685224d2f66d	522	\endcode
ban4jp	0:685224d2f66d	523	*
ban4jp	0:685224d2f66d	524	* \param port A 16-bit port number in network byte order.
ban4jp	0:685224d2f66d	525	*/
ban4jp	3:a2715e9c7737	526	void uip_unlisten(uint16_t port);
ban4jp	0:685224d2f66d	527
ban4jp	0:685224d2f66d	528	/**
ban4jp	0:685224d2f66d	529	* Connect to a remote host using TCP.
ban4jp	0:685224d2f66d	530	*
ban4jp	0:685224d2f66d	531	* This function is used to start a new connection to the specified
ban4jp	3:a2715e9c7737	532	* port on the specified host. It allocates a new connection identifier,
ban4jp	0:685224d2f66d	533	* sets the connection to the SYN_SENT state and sets the
ban4jp	0:685224d2f66d	534	* retransmission timer to 0. This will cause a TCP SYN segment to be
ban4jp	0:685224d2f66d	535	* sent out the next time this connection is periodically processed,
ban4jp	0:685224d2f66d	536	* which usually is done within 0.5 seconds after the call to
ban4jp	0:685224d2f66d	537	* uip_connect().
ban4jp	0:685224d2f66d	538	*
ban4jp	3:a2715e9c7737	539	* \note This function is available only if support for active open
ban4jp	0:685224d2f66d	540	* has been configured by defining UIP_ACTIVE_OPEN to 1 in uipopt.h.
ban4jp	0:685224d2f66d	541	*
ban4jp	0:685224d2f66d	542	* \note Since this function requires the port number to be in network
ban4jp	3:a2715e9c7737	543	* byte order, a conversion using UIP_HTONS() or uip_htons() is necessary.
ban4jp	0:685224d2f66d	544	*
ban4jp	0:685224d2f66d	545	\code
ban4jp	0:685224d2f66d	546	uip_ipaddr_t ipaddr;
ban4jp	0:685224d2f66d	547
ban4jp	0:685224d2f66d	548	uip_ipaddr(&ipaddr, 192,168,1,2);
ban4jp	3:a2715e9c7737	549	uip_connect(&ipaddr, UIP_HTONS(80));
ban4jp	0:685224d2f66d	550	\endcode
ban4jp	0:685224d2f66d	551	*
ban4jp	3:a2715e9c7737	552	* \param ripaddr The IP address of the remote host.
ban4jp	0:685224d2f66d	553	*
ban4jp	0:685224d2f66d	554	* \param port A 16-bit port number in network byte order.
ban4jp	0:685224d2f66d	555	*
ban4jp	0:685224d2f66d	556	* \return A pointer to the uIP connection identifier for the new connection,
ban4jp	0:685224d2f66d	557	* or NULL if no connection could be allocated.
ban4jp	0:685224d2f66d	558	*
ban4jp	0:685224d2f66d	559	*/
ban4jp	3:a2715e9c7737	560	struct uip_conn uip_connect(uip_ipaddr_t ripaddr, uint16_t port);
ban4jp	0:685224d2f66d	561
ban4jp	0:685224d2f66d	562
ban4jp	0:685224d2f66d	563
ban4jp	0:685224d2f66d	564	/**
ban4jp	0:685224d2f66d	565	* \internal
ban4jp	0:685224d2f66d	566	*
ban4jp	0:685224d2f66d	567	* Check if a connection has outstanding (i.e., unacknowledged) data.
ban4jp	0:685224d2f66d	568	*
ban4jp	0:685224d2f66d	569	* \param conn A pointer to the uip_conn structure for the connection.
ban4jp	0:685224d2f66d	570	*
ban4jp	0:685224d2f66d	571	* \hideinitializer
ban4jp	0:685224d2f66d	572	*/
ban4jp	0:685224d2f66d	573	#define uip_outstanding(conn) ((conn)->len)
ban4jp	0:685224d2f66d	574
ban4jp	0:685224d2f66d	575	/**
ban4jp	0:685224d2f66d	576	* Send data on the current connection.
ban4jp	0:685224d2f66d	577	*
ban4jp	0:685224d2f66d	578	* This function is used to send out a single segment of TCP
ban4jp	0:685224d2f66d	579	* data. Only applications that have been invoked by uIP for event
ban4jp	0:685224d2f66d	580	* processing can send data.
ban4jp	0:685224d2f66d	581	*
ban4jp	0:685224d2f66d	582	* The amount of data that actually is sent out after a call to this
ban4jp	3:a2715e9c7737	583	* function is determined by the maximum amount of data TCP allows. uIP
ban4jp	0:685224d2f66d	584	* will automatically crop the data so that only the appropriate
ban4jp	0:685224d2f66d	585	* amount of data is sent. The function uip_mss() can be used to query
ban4jp	0:685224d2f66d	586	* uIP for the amount of data that actually will be sent.
ban4jp	0:685224d2f66d	587	*
ban4jp	0:685224d2f66d	588	* \note This function does not guarantee that the sent data will
ban4jp	0:685224d2f66d	589	* arrive at the destination. If the data is lost in the network, the
ban4jp	0:685224d2f66d	590	* application will be invoked with the uip_rexmit() event being
ban4jp	0:685224d2f66d	591	* set. The application will then have to resend the data using this
ban4jp	0:685224d2f66d	592	* function.
ban4jp	0:685224d2f66d	593	*
ban4jp	0:685224d2f66d	594	* \param data A pointer to the data which is to be sent.
ban4jp	0:685224d2f66d	595	*
ban4jp	0:685224d2f66d	596	* \param len The maximum amount of data bytes to be sent.
ban4jp	0:685224d2f66d	597	*
ban4jp	0:685224d2f66d	598	* \hideinitializer
ban4jp	0:685224d2f66d	599	*/
ban4jp	3:a2715e9c7737	600	CCIF void uip_send(const void *data, int len);
ban4jp	0:685224d2f66d	601
ban4jp	0:685224d2f66d	602	/**
ban4jp	3:a2715e9c7737	603	* The length of any incoming data that is currently available (if available)
ban4jp	0:685224d2f66d	604	* in the uip_appdata buffer.
ban4jp	0:685224d2f66d	605	*
ban4jp	0:685224d2f66d	606	* The test function uip_data() must first be used to check if there
ban4jp	0:685224d2f66d	607	* is any data available at all.
ban4jp	0:685224d2f66d	608	*
ban4jp	0:685224d2f66d	609	* \hideinitializer
ban4jp	0:685224d2f66d	610	*/
ban4jp	0:685224d2f66d	611	/void uip_datalen(void);/
ban4jp	0:685224d2f66d	612	#define uip_datalen() uip_len
ban4jp	0:685224d2f66d	613
ban4jp	0:685224d2f66d	614	/**
ban4jp	0:685224d2f66d	615	* The length of any out-of-band data (urgent data) that has arrived
ban4jp	0:685224d2f66d	616	* on the connection.
ban4jp	0:685224d2f66d	617	*
ban4jp	0:685224d2f66d	618	* \note The configuration parameter UIP_URGDATA must be set for this
ban4jp	0:685224d2f66d	619	* function to be enabled.
ban4jp	0:685224d2f66d	620	*
ban4jp	0:685224d2f66d	621	* \hideinitializer
ban4jp	0:685224d2f66d	622	*/
ban4jp	0:685224d2f66d	623	#define uip_urgdatalen() uip_urglen
ban4jp	0:685224d2f66d	624
ban4jp	0:685224d2f66d	625	/**
ban4jp	0:685224d2f66d	626	* Close the current connection.
ban4jp	0:685224d2f66d	627	*
ban4jp	0:685224d2f66d	628	* This function will close the current connection in a nice way.
ban4jp	0:685224d2f66d	629	*
ban4jp	0:685224d2f66d	630	* \hideinitializer
ban4jp	0:685224d2f66d	631	*/
ban4jp	0:685224d2f66d	632	#define uip_close() (uip_flags = UIP_CLOSE)
ban4jp	0:685224d2f66d	633
ban4jp	0:685224d2f66d	634	/**
ban4jp	0:685224d2f66d	635	* Abort the current connection.
ban4jp	0:685224d2f66d	636	*
ban4jp	0:685224d2f66d	637	* This function will abort (reset) the current connection, and is
ban4jp	3:a2715e9c7737	638	* usually used when an error has occurred that prevents using the
ban4jp	0:685224d2f66d	639	* uip_close() function.
ban4jp	0:685224d2f66d	640	*
ban4jp	0:685224d2f66d	641	* \hideinitializer
ban4jp	0:685224d2f66d	642	*/
ban4jp	0:685224d2f66d	643	#define uip_abort() (uip_flags = UIP_ABORT)
ban4jp	0:685224d2f66d	644
ban4jp	0:685224d2f66d	645	/**
ban4jp	0:685224d2f66d	646	* Tell the sending host to stop sending data.
ban4jp	0:685224d2f66d	647	*
ban4jp	0:685224d2f66d	648	* This function will close our receiver's window so that we stop
ban4jp	0:685224d2f66d	649	* receiving data for the current connection.
ban4jp	0:685224d2f66d	650	*
ban4jp	0:685224d2f66d	651	* \hideinitializer
ban4jp	0:685224d2f66d	652	*/
ban4jp	0:685224d2f66d	653	#define uip_stop() (uip_conn->tcpstateflags \|= UIP_STOPPED)
ban4jp	0:685224d2f66d	654
ban4jp	0:685224d2f66d	655	/**
ban4jp	0:685224d2f66d	656	* Find out if the current connection has been previously stopped with
ban4jp	0:685224d2f66d	657	* uip_stop().
ban4jp	0:685224d2f66d	658	*
ban4jp	0:685224d2f66d	659	* \hideinitializer
ban4jp	0:685224d2f66d	660	*/
ban4jp	0:685224d2f66d	661	#define uip_stopped(conn) ((conn)->tcpstateflags & UIP_STOPPED)
ban4jp	0:685224d2f66d	662
ban4jp	0:685224d2f66d	663	/**
ban4jp	0:685224d2f66d	664	* Restart the current connection, if is has previously been stopped
ban4jp	0:685224d2f66d	665	* with uip_stop().
ban4jp	0:685224d2f66d	666	*
ban4jp	0:685224d2f66d	667	* This function will open the receiver's window again so that we
ban4jp	0:685224d2f66d	668	* start receiving data for the current connection.
ban4jp	0:685224d2f66d	669	*
ban4jp	0:685224d2f66d	670	* \hideinitializer
ban4jp	0:685224d2f66d	671	*/
ban4jp	3:a2715e9c7737	672	#define uip_restart() do { uip_flags \|= UIP_NEWDATA; \
ban4jp	3:a2715e9c7737	673	uip_conn->tcpstateflags &= ~UIP_STOPPED; \
ban4jp	3:a2715e9c7737	674	} while(0)
ban4jp	0:685224d2f66d	675
ban4jp	0:685224d2f66d	676
ban4jp	0:685224d2f66d	677	/* uIP tests that can be made to determine in what state the current
ban4jp	0:685224d2f66d	678	connection is, and what the application function should do. */
ban4jp	0:685224d2f66d	679
ban4jp	0:685224d2f66d	680	/**
ban4jp	0:685224d2f66d	681	* Is the current connection a UDP connection?
ban4jp	0:685224d2f66d	682	*
ban4jp	0:685224d2f66d	683	* This function checks whether the current connection is a UDP connection.
ban4jp	0:685224d2f66d	684	*
ban4jp	0:685224d2f66d	685	* \hideinitializer
ban4jp	0:685224d2f66d	686	*
ban4jp	0:685224d2f66d	687	*/
ban4jp	0:685224d2f66d	688	#define uip_udpconnection() (uip_conn == NULL)
ban4jp	0:685224d2f66d	689
ban4jp	0:685224d2f66d	690	/**
ban4jp	0:685224d2f66d	691	* Is new incoming data available?
ban4jp	0:685224d2f66d	692	*
ban4jp	0:685224d2f66d	693	* Will reduce to non-zero if there is new data for the application
ban4jp	0:685224d2f66d	694	* present at the uip_appdata pointer. The size of the data is
ban4jp	3:a2715e9c7737	695	* available through the uip_len variable.
ban4jp	0:685224d2f66d	696	*
ban4jp	0:685224d2f66d	697	* \hideinitializer
ban4jp	0:685224d2f66d	698	*/
ban4jp	0:685224d2f66d	699	#define uip_newdata() (uip_flags & UIP_NEWDATA)
ban4jp	0:685224d2f66d	700
ban4jp	0:685224d2f66d	701	/**
ban4jp	0:685224d2f66d	702	* Has previously sent data been acknowledged?
ban4jp	0:685224d2f66d	703	*
ban4jp	0:685224d2f66d	704	* Will reduce to non-zero if the previously sent data has been
ban4jp	0:685224d2f66d	705	* acknowledged by the remote host. This means that the application
ban4jp	0:685224d2f66d	706	* can send new data.
ban4jp	0:685224d2f66d	707	*
ban4jp	0:685224d2f66d	708	* \hideinitializer
ban4jp	0:685224d2f66d	709	*/
ban4jp	0:685224d2f66d	710	#define uip_acked() (uip_flags & UIP_ACKDATA)
ban4jp	0:685224d2f66d	711
ban4jp	0:685224d2f66d	712	/**
ban4jp	0:685224d2f66d	713	* Has the connection just been connected?
ban4jp	0:685224d2f66d	714	*
ban4jp	0:685224d2f66d	715	* Reduces to non-zero if the current connection has been connected to
ban4jp	0:685224d2f66d	716	* a remote host. This will happen both if the connection has been
ban4jp	0:685224d2f66d	717	* actively opened (with uip_connect()) or passively opened (with
ban4jp	0:685224d2f66d	718	* uip_listen()).
ban4jp	0:685224d2f66d	719	*
ban4jp	0:685224d2f66d	720	* \hideinitializer
ban4jp	0:685224d2f66d	721	*/
ban4jp	0:685224d2f66d	722	#define uip_connected() (uip_flags & UIP_CONNECTED)
ban4jp	0:685224d2f66d	723
ban4jp	0:685224d2f66d	724	/**
ban4jp	0:685224d2f66d	725	* Has the connection been closed by the other end?
ban4jp	0:685224d2f66d	726	*
ban4jp	0:685224d2f66d	727	* Is non-zero if the connection has been closed by the remote
ban4jp	0:685224d2f66d	728	* host. The application may then do the necessary clean-ups.
ban4jp	0:685224d2f66d	729	*
ban4jp	0:685224d2f66d	730	* \hideinitializer
ban4jp	0:685224d2f66d	731	*/
ban4jp	0:685224d2f66d	732	#define uip_closed() (uip_flags & UIP_CLOSE)
ban4jp	0:685224d2f66d	733
ban4jp	0:685224d2f66d	734	/**
ban4jp	0:685224d2f66d	735	* Has the connection been aborted by the other end?
ban4jp	0:685224d2f66d	736	*
ban4jp	0:685224d2f66d	737	* Non-zero if the current connection has been aborted (reset) by the
ban4jp	0:685224d2f66d	738	* remote host.
ban4jp	0:685224d2f66d	739	*
ban4jp	0:685224d2f66d	740	* \hideinitializer
ban4jp	0:685224d2f66d	741	*/
ban4jp	0:685224d2f66d	742	#define uip_aborted() (uip_flags & UIP_ABORT)
ban4jp	0:685224d2f66d	743
ban4jp	0:685224d2f66d	744	/**
ban4jp	0:685224d2f66d	745	* Has the connection timed out?
ban4jp	0:685224d2f66d	746	*
ban4jp	0:685224d2f66d	747	* Non-zero if the current connection has been aborted due to too many
ban4jp	0:685224d2f66d	748	* retransmissions.
ban4jp	0:685224d2f66d	749	*
ban4jp	0:685224d2f66d	750	* \hideinitializer
ban4jp	0:685224d2f66d	751	*/
ban4jp	0:685224d2f66d	752	#define uip_timedout() (uip_flags & UIP_TIMEDOUT)
ban4jp	0:685224d2f66d	753
ban4jp	0:685224d2f66d	754	/**
ban4jp	0:685224d2f66d	755	* Do we need to retransmit previously data?
ban4jp	0:685224d2f66d	756	*
ban4jp	0:685224d2f66d	757	* Reduces to non-zero if the previously sent data has been lost in
ban4jp	0:685224d2f66d	758	* the network, and the application should retransmit it. The
ban4jp	0:685224d2f66d	759	* application should send the exact same data as it did the last
ban4jp	0:685224d2f66d	760	* time, using the uip_send() function.
ban4jp	0:685224d2f66d	761	*
ban4jp	0:685224d2f66d	762	* \hideinitializer
ban4jp	0:685224d2f66d	763	*/
ban4jp	0:685224d2f66d	764	#define uip_rexmit() (uip_flags & UIP_REXMIT)
ban4jp	0:685224d2f66d	765
ban4jp	0:685224d2f66d	766	/**
ban4jp	0:685224d2f66d	767	* Is the connection being polled by uIP?
ban4jp	0:685224d2f66d	768	*
ban4jp	0:685224d2f66d	769	* Is non-zero if the reason the application is invoked is that the
ban4jp	0:685224d2f66d	770	* current connection has been idle for a while and should be
ban4jp	0:685224d2f66d	771	* polled.
ban4jp	0:685224d2f66d	772	*
ban4jp	0:685224d2f66d	773	* The polling event can be used for sending data without having to
ban4jp	0:685224d2f66d	774	* wait for the remote host to send data.
ban4jp	0:685224d2f66d	775	*
ban4jp	0:685224d2f66d	776	* \hideinitializer
ban4jp	0:685224d2f66d	777	*/
ban4jp	0:685224d2f66d	778	#define uip_poll() (uip_flags & UIP_POLL)
ban4jp	0:685224d2f66d	779
ban4jp	0:685224d2f66d	780	/**
ban4jp	3:a2715e9c7737	781	* Get the initial maximum segment size (MSS) of the current
ban4jp	0:685224d2f66d	782	* connection.
ban4jp	0:685224d2f66d	783	*
ban4jp	0:685224d2f66d	784	* \hideinitializer
ban4jp	0:685224d2f66d	785	*/
ban4jp	0:685224d2f66d	786	#define uip_initialmss() (uip_conn->initialmss)
ban4jp	0:685224d2f66d	787
ban4jp	0:685224d2f66d	788	/**
ban4jp	3:a2715e9c7737	789	* Get the current maximum segment size that can be sent on the current
ban4jp	0:685224d2f66d	790	* connection.
ban4jp	0:685224d2f66d	791	*
ban4jp	3:a2715e9c7737	792	* The current maximum segment size that can be sent on the
ban4jp	0:685224d2f66d	793	* connection is computed from the receiver's window and the MSS of
ban4jp	0:685224d2f66d	794	* the connection (which also is available by calling
ban4jp	0:685224d2f66d	795	* uip_initialmss()).
ban4jp	0:685224d2f66d	796	*
ban4jp	0:685224d2f66d	797	* \hideinitializer
ban4jp	0:685224d2f66d	798	*/
ban4jp	0:685224d2f66d	799	#define uip_mss() (uip_conn->mss)
ban4jp	0:685224d2f66d	800
ban4jp	0:685224d2f66d	801	/**
ban4jp	0:685224d2f66d	802	* Set up a new UDP connection.
ban4jp	0:685224d2f66d	803	*
ban4jp	0:685224d2f66d	804	* This function sets up a new UDP connection. The function will
ban4jp	0:685224d2f66d	805	* automatically allocate an unused local port for the new
ban4jp	0:685224d2f66d	806	* connection. However, another port can be chosen by using the
ban4jp	0:685224d2f66d	807	* uip_udp_bind() call, after the uip_udp_new() function has been
ban4jp	0:685224d2f66d	808	* called.
ban4jp	0:685224d2f66d	809	*
ban4jp	0:685224d2f66d	810	* Example:
ban4jp	0:685224d2f66d	811	\code
ban4jp	0:685224d2f66d	812	uip_ipaddr_t addr;
ban4jp	0:685224d2f66d	813	struct uip_udp_conn *c;
ban4jp	0:685224d2f66d	814
ban4jp	0:685224d2f66d	815	uip_ipaddr(&addr, 192,168,2,1);
ban4jp	3:a2715e9c7737	816	c = uip_udp_new(&addr, UIP_HTONS(12345));
ban4jp	0:685224d2f66d	817	if(c != NULL) {
ban4jp	3:a2715e9c7737	818	uip_udp_bind(c, UIP_HTONS(12344));
ban4jp	0:685224d2f66d	819	}
ban4jp	0:685224d2f66d	820	\endcode
ban4jp	0:685224d2f66d	821	* \param ripaddr The IP address of the remote host.
ban4jp	0:685224d2f66d	822	*
ban4jp	0:685224d2f66d	823	* \param rport The remote port number in network byte order.
ban4jp	0:685224d2f66d	824	*
ban4jp	3:a2715e9c7737	825	* \return The uip_udp_conn structure for the new connection, or NULL
ban4jp	0:685224d2f66d	826	* if no connection could be allocated.
ban4jp	0:685224d2f66d	827	*/
ban4jp	3:a2715e9c7737	828	struct uip_udp_conn uip_udp_new(const uip_ipaddr_t ripaddr, uint16_t rport);
ban4jp	0:685224d2f66d	829
ban4jp	0:685224d2f66d	830	/**
ban4jp	3:a2715e9c7737	831	* Remove a UDP connection.
ban4jp	0:685224d2f66d	832	*
ban4jp	0:685224d2f66d	833	* \param conn A pointer to the uip_udp_conn structure for the connection.
ban4jp	0:685224d2f66d	834	*
ban4jp	0:685224d2f66d	835	* \hideinitializer
ban4jp	0:685224d2f66d	836	*/
ban4jp	0:685224d2f66d	837	#define uip_udp_remove(conn) (conn)->lport = 0
ban4jp	0:685224d2f66d	838
ban4jp	0:685224d2f66d	839	/**
ban4jp	0:685224d2f66d	840	* Bind a UDP connection to a local port.
ban4jp	0:685224d2f66d	841	*
ban4jp	0:685224d2f66d	842	* \param conn A pointer to the uip_udp_conn structure for the
ban4jp	0:685224d2f66d	843	* connection.
ban4jp	0:685224d2f66d	844	*
ban4jp	0:685224d2f66d	845	* \param port The local port number, in network byte order.
ban4jp	0:685224d2f66d	846	*
ban4jp	0:685224d2f66d	847	* \hideinitializer
ban4jp	0:685224d2f66d	848	*/
ban4jp	0:685224d2f66d	849	#define uip_udp_bind(conn, port) (conn)->lport = port
ban4jp	0:685224d2f66d	850
ban4jp	0:685224d2f66d	851	/**
ban4jp	0:685224d2f66d	852	* Send a UDP datagram of length len on the current connection.
ban4jp	0:685224d2f66d	853	*
ban4jp	0:685224d2f66d	854	* This function can only be called in response to a UDP event (poll
ban4jp	0:685224d2f66d	855	* or newdata). The data must be present in the uip_buf buffer, at the
ban4jp	0:685224d2f66d	856	* place pointed to by the uip_appdata pointer.
ban4jp	0:685224d2f66d	857	*
ban4jp	0:685224d2f66d	858	* \param len The length of the data in the uip_buf buffer.
ban4jp	0:685224d2f66d	859	*
ban4jp	0:685224d2f66d	860	* \hideinitializer
ban4jp	0:685224d2f66d	861	*/
ban4jp	0:685224d2f66d	862	#define uip_udp_send(len) uip_send((char *)uip_appdata, len)
ban4jp	0:685224d2f66d	863
ban4jp	0:685224d2f66d	864	/** @} */
ban4jp	0:685224d2f66d	865
ban4jp	0:685224d2f66d	866	/* uIP convenience and converting functions. */
ban4jp	0:685224d2f66d	867
ban4jp	0:685224d2f66d	868	/**
ban4jp	0:685224d2f66d	869	* \defgroup uipconvfunc uIP conversion functions
ban4jp	0:685224d2f66d	870	* @{
ban4jp	0:685224d2f66d	871	*
ban4jp	0:685224d2f66d	872	* These functions can be used for converting between different data
ban4jp	0:685224d2f66d	873	* formats used by uIP.
ban4jp	0:685224d2f66d	874	*/
ban4jp	0:685224d2f66d	875
ban4jp	0:685224d2f66d	876	/**
ban4jp	3:a2715e9c7737	877	* Convert an IP address to four bytes separated by commas.
ban4jp	3:a2715e9c7737	878	*
ban4jp	3:a2715e9c7737	879	* Example:
ban4jp	3:a2715e9c7737	880	\code
ban4jp	3:a2715e9c7737	881	uip_ipaddr_t ipaddr;
ban4jp	3:a2715e9c7737	882	printf("ipaddr=%d.%d.%d.%d\n", uip_ipaddr_to_quad(&ipaddr));
ban4jp	3:a2715e9c7737	883	\endcode
ban4jp	3:a2715e9c7737	884	*
ban4jp	3:a2715e9c7737	885	* \param a A pointer to a uip_ipaddr_t.
ban4jp	3:a2715e9c7737	886	* \hideinitializer
ban4jp	3:a2715e9c7737	887	*/
ban4jp	3:a2715e9c7737	888	#define uip_ipaddr_to_quad(a) (a)->u8[0],(a)->u8[1],(a)->u8[2],(a)->u8[3]
ban4jp	3:a2715e9c7737	889
ban4jp	3:a2715e9c7737	890	/**
ban4jp	0:685224d2f66d	891	* Construct an IP address from four bytes.
ban4jp	0:685224d2f66d	892	*
ban4jp	0:685224d2f66d	893	* This function constructs an IP address of the type that uIP handles
ban4jp	0:685224d2f66d	894	* internally from four bytes. The function is handy for specifying IP
ban4jp	0:685224d2f66d	895	* addresses to use with e.g. the uip_connect() function.
ban4jp	0:685224d2f66d	896	*
ban4jp	0:685224d2f66d	897	* Example:
ban4jp	0:685224d2f66d	898	\code
ban4jp	0:685224d2f66d	899	uip_ipaddr_t ipaddr;
ban4jp	0:685224d2f66d	900	struct uip_conn *c;
ban4jp	0:685224d2f66d	901
ban4jp	0:685224d2f66d	902	uip_ipaddr(&ipaddr, 192,168,1,2);
ban4jp	3:a2715e9c7737	903	c = uip_connect(&ipaddr, UIP_HTONS(80));
ban4jp	0:685224d2f66d	904	\endcode
ban4jp	0:685224d2f66d	905	*
ban4jp	0:685224d2f66d	906	* \param addr A pointer to a uip_ipaddr_t variable that will be
ban4jp	0:685224d2f66d	907	* filled in with the IP address.
ban4jp	0:685224d2f66d	908	*
ban4jp	0:685224d2f66d	909	* \param addr0 The first octet of the IP address.
ban4jp	0:685224d2f66d	910	* \param addr1 The second octet of the IP address.
ban4jp	0:685224d2f66d	911	* \param addr2 The third octet of the IP address.
ban4jp	0:685224d2f66d	912	* \param addr3 The forth octet of the IP address.
ban4jp	0:685224d2f66d	913	*
ban4jp	0:685224d2f66d	914	* \hideinitializer
ban4jp	0:685224d2f66d	915	*/
ban4jp	3:a2715e9c7737	916	#define uip_ipaddr(addr, addr0,addr1,addr2,addr3) do { \
ban4jp	3:a2715e9c7737	917	(addr)->u8[0] = addr0; \
ban4jp	3:a2715e9c7737	918	(addr)->u8[1] = addr1; \
ban4jp	3:a2715e9c7737	919	(addr)->u8[2] = addr2; \
ban4jp	3:a2715e9c7737	920	(addr)->u8[3] = addr3; \
ban4jp	3:a2715e9c7737	921	} while(0)
ban4jp	0:685224d2f66d	922
ban4jp	0:685224d2f66d	923	/**
ban4jp	0:685224d2f66d	924	* Construct an IPv6 address from eight 16-bit words.
ban4jp	0:685224d2f66d	925	*
ban4jp	0:685224d2f66d	926	* This function constructs an IPv6 address.
ban4jp	0:685224d2f66d	927	*
ban4jp	0:685224d2f66d	928	* \hideinitializer
ban4jp	0:685224d2f66d	929	*/
ban4jp	0:685224d2f66d	930	#define uip_ip6addr(addr, addr0,addr1,addr2,addr3,addr4,addr5,addr6,addr7) do { \
ban4jp	3:a2715e9c7737	931	(addr)->u16[0] = UIP_HTONS(addr0); \
ban4jp	3:a2715e9c7737	932	(addr)->u16[1] = UIP_HTONS(addr1); \
ban4jp	3:a2715e9c7737	933	(addr)->u16[2] = UIP_HTONS(addr2); \
ban4jp	3:a2715e9c7737	934	(addr)->u16[3] = UIP_HTONS(addr3); \
ban4jp	3:a2715e9c7737	935	(addr)->u16[4] = UIP_HTONS(addr4); \
ban4jp	3:a2715e9c7737	936	(addr)->u16[5] = UIP_HTONS(addr5); \
ban4jp	3:a2715e9c7737	937	(addr)->u16[6] = UIP_HTONS(addr6); \
ban4jp	3:a2715e9c7737	938	(addr)->u16[7] = UIP_HTONS(addr7); \
ban4jp	3:a2715e9c7737	939	} while(0)
ban4jp	0:685224d2f66d	940
ban4jp	0:685224d2f66d	941	/**
ban4jp	3:a2715e9c7737	942	* Construct an IPv6 address from sixteen 8-bit words.
ban4jp	3:a2715e9c7737	943	*
ban4jp	3:a2715e9c7737	944	* This function constructs an IPv6 address.
ban4jp	3:a2715e9c7737	945	*
ban4jp	3:a2715e9c7737	946	* \hideinitializer
ban4jp	3:a2715e9c7737	947	*/
ban4jp	3:a2715e9c7737	948	#define uip_ip6addr_u8(addr, addr0,addr1,addr2,addr3,addr4,addr5,addr6,addr7,addr8,addr9,addr10,addr11,addr12,addr13,addr14,addr15) do { \
ban4jp	3:a2715e9c7737	949	(addr)->u8[0] = addr0; \
ban4jp	3:a2715e9c7737	950	(addr)->u8[1] = addr1; \
ban4jp	3:a2715e9c7737	951	(addr)->u8[2] = addr2; \
ban4jp	3:a2715e9c7737	952	(addr)->u8[3] = addr3; \
ban4jp	3:a2715e9c7737	953	(addr)->u8[4] = addr4; \
ban4jp	3:a2715e9c7737	954	(addr)->u8[5] = addr5; \
ban4jp	3:a2715e9c7737	955	(addr)->u8[6] = addr6; \
ban4jp	3:a2715e9c7737	956	(addr)->u8[7] = addr7; \
ban4jp	3:a2715e9c7737	957	(addr)->u8[8] = addr8; \
ban4jp	3:a2715e9c7737	958	(addr)->u8[9] = addr9; \
ban4jp	3:a2715e9c7737	959	(addr)->u8[10] = addr10; \
ban4jp	3:a2715e9c7737	960	(addr)->u8[11] = addr11; \
ban4jp	3:a2715e9c7737	961	(addr)->u8[12] = addr12; \
ban4jp	3:a2715e9c7737	962	(addr)->u8[13] = addr13; \
ban4jp	3:a2715e9c7737	963	(addr)->u8[14] = addr14; \
ban4jp	3:a2715e9c7737	964	(addr)->u8[15] = addr15; \
ban4jp	3:a2715e9c7737	965	} while(0)
ban4jp	3:a2715e9c7737	966
ban4jp	3:a2715e9c7737	967
ban4jp	3:a2715e9c7737	968	/**
ban4jp	3:a2715e9c7737	969	* Copy an IP address from one place to another.
ban4jp	0:685224d2f66d	970	*
ban4jp	0:685224d2f66d	971	* Copies an IP address from one place to another.
ban4jp	0:685224d2f66d	972	*
ban4jp	0:685224d2f66d	973	* Example:
ban4jp	0:685224d2f66d	974	\code
ban4jp	0:685224d2f66d	975	uip_ipaddr_t ipaddr1, ipaddr2;
ban4jp	0:685224d2f66d	976
ban4jp	0:685224d2f66d	977	uip_ipaddr(&ipaddr1, 192,16,1,2);
ban4jp	0:685224d2f66d	978	uip_ipaddr_copy(&ipaddr2, &ipaddr1);
ban4jp	0:685224d2f66d	979	\endcode
ban4jp	0:685224d2f66d	980	*
ban4jp	0:685224d2f66d	981	* \param dest The destination for the copy.
ban4jp	0:685224d2f66d	982	* \param src The source from where to copy.
ban4jp	0:685224d2f66d	983	*
ban4jp	0:685224d2f66d	984	* \hideinitializer
ban4jp	0:685224d2f66d	985	*/
ban4jp	3:a2715e9c7737	986	#ifndef uip_ipaddr_copy
ban4jp	3:a2715e9c7737	987	#define uip_ipaddr_copy(dest, src) ((dest) = (src))
ban4jp	3:a2715e9c7737	988	#endif
ban4jp	3:a2715e9c7737	989	#ifndef uip_ip4addr_copy
ban4jp	3:a2715e9c7737	990	#define uip_ip4addr_copy(dest, src) ((dest) = (src))
ban4jp	3:a2715e9c7737	991	#endif
ban4jp	3:a2715e9c7737	992	#ifndef uip_ip6addr_copy
ban4jp	3:a2715e9c7737	993	#define uip_ip6addr_copy(dest, src) ((dest) = (src))
ban4jp	3:a2715e9c7737	994	#endif
ban4jp	0:685224d2f66d	995
ban4jp	0:685224d2f66d	996	/**
ban4jp	0:685224d2f66d	997	* Compare two IP addresses
ban4jp	0:685224d2f66d	998	*
ban4jp	0:685224d2f66d	999	* Compares two IP addresses.
ban4jp	0:685224d2f66d	1000	*
ban4jp	0:685224d2f66d	1001	* Example:
ban4jp	0:685224d2f66d	1002	\code
ban4jp	0:685224d2f66d	1003	uip_ipaddr_t ipaddr1, ipaddr2;
ban4jp	0:685224d2f66d	1004
ban4jp	0:685224d2f66d	1005	uip_ipaddr(&ipaddr1, 192,16,1,2);
ban4jp	0:685224d2f66d	1006	if(uip_ipaddr_cmp(&ipaddr2, &ipaddr1)) {
ban4jp	3:a2715e9c7737	1007	printf("They are the same");
ban4jp	0:685224d2f66d	1008	}
ban4jp	0:685224d2f66d	1009	\endcode
ban4jp	0:685224d2f66d	1010	*
ban4jp	0:685224d2f66d	1011	* \param addr1 The first IP address.
ban4jp	0:685224d2f66d	1012	* \param addr2 The second IP address.
ban4jp	0:685224d2f66d	1013	*
ban4jp	0:685224d2f66d	1014	* \hideinitializer
ban4jp	0:685224d2f66d	1015	*/
ban4jp	3:a2715e9c7737	1016	#define uip_ip4addr_cmp(addr1, addr2) ((addr1)->u16[0] == (addr2)->u16[0] && \
ban4jp	3:a2715e9c7737	1017	(addr1)->u16[1] == (addr2)->u16[1])
ban4jp	3:a2715e9c7737	1018	#define uip_ip6addr_cmp(addr1, addr2) (memcmp(addr1, addr2, sizeof(uip_ip6addr_t)) == 0)
ban4jp	3:a2715e9c7737	1019
ban4jp	3:a2715e9c7737	1020	#if UIP_CONF_IPV6
ban4jp	3:a2715e9c7737	1021	#define uip_ipaddr_cmp(addr1, addr2) uip_ip6addr_cmp(addr1, addr2)
ban4jp	3:a2715e9c7737	1022	#else /* UIP_CONF_IPV6 */
ban4jp	3:a2715e9c7737	1023	#define uip_ipaddr_cmp(addr1, addr2) uip_ip4addr_cmp(addr1, addr2)
ban4jp	3:a2715e9c7737	1024	#endif /* UIP_CONF_IPV6 */
ban4jp	0:685224d2f66d	1025
ban4jp	0:685224d2f66d	1026	/**
ban4jp	0:685224d2f66d	1027	* Compare two IP addresses with netmasks
ban4jp	0:685224d2f66d	1028	*
ban4jp	0:685224d2f66d	1029	* Compares two IP addresses with netmasks. The masks are used to mask
ban4jp	0:685224d2f66d	1030	* out the bits that are to be compared.
ban4jp	0:685224d2f66d	1031	*
ban4jp	0:685224d2f66d	1032	* Example:
ban4jp	0:685224d2f66d	1033	\code
ban4jp	0:685224d2f66d	1034	uip_ipaddr_t ipaddr1, ipaddr2, mask;
ban4jp	0:685224d2f66d	1035
ban4jp	0:685224d2f66d	1036	uip_ipaddr(&mask, 255,255,255,0);
ban4jp	0:685224d2f66d	1037	uip_ipaddr(&ipaddr1, 192,16,1,2);
ban4jp	0:685224d2f66d	1038	uip_ipaddr(&ipaddr2, 192,16,1,3);
ban4jp	0:685224d2f66d	1039	if(uip_ipaddr_maskcmp(&ipaddr1, &ipaddr2, &mask)) {
ban4jp	3:a2715e9c7737	1040	printf("They are the same");
ban4jp	0:685224d2f66d	1041	}
ban4jp	0:685224d2f66d	1042	\endcode
ban4jp	0:685224d2f66d	1043	*
ban4jp	0:685224d2f66d	1044	* \param addr1 The first IP address.
ban4jp	0:685224d2f66d	1045	* \param addr2 The second IP address.
ban4jp	0:685224d2f66d	1046	* \param mask The netmask.
ban4jp	0:685224d2f66d	1047	*
ban4jp	0:685224d2f66d	1048	* \hideinitializer
ban4jp	0:685224d2f66d	1049	*/
ban4jp	3:a2715e9c7737	1050
ban4jp	3:a2715e9c7737	1051	#define uip_ipaddr_maskcmp(addr1, addr2, mask) \
ban4jp	3:a2715e9c7737	1052	(((((uint16_t )addr1)[0] & ((uint16_t )mask)[0]) == \
ban4jp	3:a2715e9c7737	1053	(((uint16_t )addr2)[0] & ((uint16_t )mask)[0])) && \
ban4jp	3:a2715e9c7737	1054	((((uint16_t )addr1)[1] & ((uint16_t )mask)[1]) == \
ban4jp	3:a2715e9c7737	1055	(((uint16_t )addr2)[1] & ((uint16_t )mask)[1])))
ban4jp	3:a2715e9c7737	1056
ban4jp	3:a2715e9c7737	1057	#define uip_ipaddr_prefixcmp(addr1, addr2, length) (memcmp(addr1, addr2, length>>3) == 0)
ban4jp	3:a2715e9c7737	1058
ban4jp	3:a2715e9c7737	1059
ban4jp	3:a2715e9c7737	1060
ban4jp	3:a2715e9c7737	1061	/**
ban4jp	3:a2715e9c7737	1062	* Check if an address is a broadcast address for a network.
ban4jp	3:a2715e9c7737	1063	*
ban4jp	3:a2715e9c7737	1064	* Checks if an address is the broadcast address for a network. The
ban4jp	3:a2715e9c7737	1065	* network is defined by an IP address that is on the network and the
ban4jp	3:a2715e9c7737	1066	* network's netmask.
ban4jp	3:a2715e9c7737	1067	*
ban4jp	3:a2715e9c7737	1068	* \param addr The IP address.
ban4jp	3:a2715e9c7737	1069	* \param netaddr The network's IP address.
ban4jp	3:a2715e9c7737	1070	* \param netmask The network's netmask.
ban4jp	3:a2715e9c7737	1071	*
ban4jp	3:a2715e9c7737	1072	* \hideinitializer
ban4jp	3:a2715e9c7737	1073	*/
ban4jp	3:a2715e9c7737	1074	/*#define uip_ipaddr_isbroadcast(addr, netaddr, netmask)
ban4jp	3:a2715e9c7737	1075	((uip_ipaddr_t )(addr)).u16 & ((uip_ipaddr_t )(addr)).u16*/
ban4jp	3:a2715e9c7737	1076
ban4jp	0:685224d2f66d	1077
ban4jp	0:685224d2f66d	1078
ban4jp	0:685224d2f66d	1079	/**
ban4jp	0:685224d2f66d	1080	* Mask out the network part of an IP address.
ban4jp	0:685224d2f66d	1081	*
ban4jp	0:685224d2f66d	1082	* Masks out the network part of an IP address, given the address and
ban4jp	0:685224d2f66d	1083	* the netmask.
ban4jp	0:685224d2f66d	1084	*
ban4jp	0:685224d2f66d	1085	* Example:
ban4jp	0:685224d2f66d	1086	\code
ban4jp	0:685224d2f66d	1087	uip_ipaddr_t ipaddr1, ipaddr2, netmask;
ban4jp	0:685224d2f66d	1088
ban4jp	0:685224d2f66d	1089	uip_ipaddr(&ipaddr1, 192,16,1,2);
ban4jp	0:685224d2f66d	1090	uip_ipaddr(&netmask, 255,255,255,0);
ban4jp	0:685224d2f66d	1091	uip_ipaddr_mask(&ipaddr2, &ipaddr1, &netmask);
ban4jp	0:685224d2f66d	1092	\endcode
ban4jp	0:685224d2f66d	1093	*
ban4jp	0:685224d2f66d	1094	* In the example above, the variable "ipaddr2" will contain the IP
ban4jp	0:685224d2f66d	1095	* address 192.168.1.0.
ban4jp	0:685224d2f66d	1096	*
ban4jp	0:685224d2f66d	1097	* \param dest Where the result is to be placed.
ban4jp	0:685224d2f66d	1098	* \param src The IP address.
ban4jp	0:685224d2f66d	1099	* \param mask The netmask.
ban4jp	0:685224d2f66d	1100	*
ban4jp	0:685224d2f66d	1101	* \hideinitializer
ban4jp	0:685224d2f66d	1102	*/
ban4jp	3:a2715e9c7737	1103	#define uip_ipaddr_mask(dest, src, mask) do { \
ban4jp	3:a2715e9c7737	1104	((uint16_t )dest)[0] = ((uint16_t )src)[0] & ((uint16_t *)mask)[0]; \
ban4jp	3:a2715e9c7737	1105	((uint16_t )dest)[1] = ((uint16_t )src)[1] & ((uint16_t *)mask)[1]; \
ban4jp	3:a2715e9c7737	1106	} while(0)
ban4jp	0:685224d2f66d	1107
ban4jp	0:685224d2f66d	1108	/**
ban4jp	0:685224d2f66d	1109	* Pick the first octet of an IP address.
ban4jp	0:685224d2f66d	1110	*
ban4jp	0:685224d2f66d	1111	* Picks out the first octet of an IP address.
ban4jp	0:685224d2f66d	1112	*
ban4jp	0:685224d2f66d	1113	* Example:
ban4jp	0:685224d2f66d	1114	\code
ban4jp	0:685224d2f66d	1115	uip_ipaddr_t ipaddr;
ban4jp	3:a2715e9c7737	1116	uint8_t octet;
ban4jp	0:685224d2f66d	1117
ban4jp	0:685224d2f66d	1118	uip_ipaddr(&ipaddr, 1,2,3,4);
ban4jp	0:685224d2f66d	1119	octet = uip_ipaddr1(&ipaddr);
ban4jp	0:685224d2f66d	1120	\endcode
ban4jp	0:685224d2f66d	1121	*
ban4jp	0:685224d2f66d	1122	* In the example above, the variable "octet" will contain the value 1.
ban4jp	0:685224d2f66d	1123	*
ban4jp	0:685224d2f66d	1124	* \hideinitializer
ban4jp	0:685224d2f66d	1125	*/
ban4jp	3:a2715e9c7737	1126	#define uip_ipaddr1(addr) ((addr)->u8[0])
ban4jp	0:685224d2f66d	1127
ban4jp	0:685224d2f66d	1128	/**
ban4jp	0:685224d2f66d	1129	* Pick the second octet of an IP address.
ban4jp	0:685224d2f66d	1130	*
ban4jp	0:685224d2f66d	1131	* Picks out the second octet of an IP address.
ban4jp	0:685224d2f66d	1132	*
ban4jp	0:685224d2f66d	1133	* Example:
ban4jp	0:685224d2f66d	1134	\code
ban4jp	0:685224d2f66d	1135	uip_ipaddr_t ipaddr;
ban4jp	3:a2715e9c7737	1136	uint8_t octet;
ban4jp	0:685224d2f66d	1137
ban4jp	0:685224d2f66d	1138	uip_ipaddr(&ipaddr, 1,2,3,4);
ban4jp	0:685224d2f66d	1139	octet = uip_ipaddr2(&ipaddr);
ban4jp	0:685224d2f66d	1140	\endcode
ban4jp	0:685224d2f66d	1141	*
ban4jp	0:685224d2f66d	1142	* In the example above, the variable "octet" will contain the value 2.
ban4jp	0:685224d2f66d	1143	*
ban4jp	0:685224d2f66d	1144	* \hideinitializer
ban4jp	0:685224d2f66d	1145	*/
ban4jp	3:a2715e9c7737	1146	#define uip_ipaddr2(addr) ((addr)->u8[1])
ban4jp	0:685224d2f66d	1147
ban4jp	0:685224d2f66d	1148	/**
ban4jp	0:685224d2f66d	1149	* Pick the third octet of an IP address.
ban4jp	0:685224d2f66d	1150	*
ban4jp	0:685224d2f66d	1151	* Picks out the third octet of an IP address.
ban4jp	0:685224d2f66d	1152	*
ban4jp	0:685224d2f66d	1153	* Example:
ban4jp	0:685224d2f66d	1154	\code
ban4jp	0:685224d2f66d	1155	uip_ipaddr_t ipaddr;
ban4jp	3:a2715e9c7737	1156	uint8_t octet;
ban4jp	0:685224d2f66d	1157
ban4jp	0:685224d2f66d	1158	uip_ipaddr(&ipaddr, 1,2,3,4);
ban4jp	0:685224d2f66d	1159	octet = uip_ipaddr3(&ipaddr);
ban4jp	0:685224d2f66d	1160	\endcode
ban4jp	0:685224d2f66d	1161	*
ban4jp	0:685224d2f66d	1162	* In the example above, the variable "octet" will contain the value 3.
ban4jp	0:685224d2f66d	1163	*
ban4jp	0:685224d2f66d	1164	* \hideinitializer
ban4jp	0:685224d2f66d	1165	*/
ban4jp	3:a2715e9c7737	1166	#define uip_ipaddr3(addr) ((addr)->u8[2])
ban4jp	0:685224d2f66d	1167
ban4jp	0:685224d2f66d	1168	/**
ban4jp	0:685224d2f66d	1169	* Pick the fourth octet of an IP address.
ban4jp	0:685224d2f66d	1170	*
ban4jp	0:685224d2f66d	1171	* Picks out the fourth octet of an IP address.
ban4jp	0:685224d2f66d	1172	*
ban4jp	0:685224d2f66d	1173	* Example:
ban4jp	0:685224d2f66d	1174	\code
ban4jp	0:685224d2f66d	1175	uip_ipaddr_t ipaddr;
ban4jp	3:a2715e9c7737	1176	uint8_t octet;
ban4jp	0:685224d2f66d	1177
ban4jp	0:685224d2f66d	1178	uip_ipaddr(&ipaddr, 1,2,3,4);
ban4jp	0:685224d2f66d	1179	octet = uip_ipaddr4(&ipaddr);
ban4jp	0:685224d2f66d	1180	\endcode
ban4jp	0:685224d2f66d	1181	*
ban4jp	0:685224d2f66d	1182	* In the example above, the variable "octet" will contain the value 4.
ban4jp	0:685224d2f66d	1183	*
ban4jp	0:685224d2f66d	1184	* \hideinitializer
ban4jp	0:685224d2f66d	1185	*/
ban4jp	3:a2715e9c7737	1186	#define uip_ipaddr4(addr) ((addr)->u8[3])
ban4jp	0:685224d2f66d	1187
ban4jp	0:685224d2f66d	1188	/**
ban4jp	0:685224d2f66d	1189	* Convert 16-bit quantity from host byte order to network byte order.
ban4jp	0:685224d2f66d	1190	*
ban4jp	0:685224d2f66d	1191	* This macro is primarily used for converting constants from host
ban4jp	0:685224d2f66d	1192	* byte order to network byte order. For converting variables to
ban4jp	3:a2715e9c7737	1193	* network byte order, use the uip_htons() function instead.
ban4jp	0:685224d2f66d	1194	*
ban4jp	0:685224d2f66d	1195	* \hideinitializer
ban4jp	0:685224d2f66d	1196	*/
ban4jp	3:a2715e9c7737	1197	#ifndef UIP_HTONS
ban4jp	0:685224d2f66d	1198	# if UIP_BYTE_ORDER == UIP_BIG_ENDIAN
ban4jp	3:a2715e9c7737	1199	# define UIP_HTONS(n) (n)
ban4jp	3:a2715e9c7737	1200	# define UIP_HTONL(n) (n)
ban4jp	0:685224d2f66d	1201	# else /* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */
ban4jp	3:a2715e9c7737	1202	# define UIP_HTONS(n) (uint16_t)((((uint16_t) (n)) << 8) \| (((uint16_t) (n)) >> 8))
ban4jp	3:a2715e9c7737	1203	# define UIP_HTONL(n) (((uint32_t)UIP_HTONS(n) << 16) \| UIP_HTONS((uint32_t)(n) >> 16))
ban4jp	0:685224d2f66d	1204	# endif /* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */
ban4jp	0:685224d2f66d	1205	#else
ban4jp	3:a2715e9c7737	1206	#error "UIP_HTONS already defined!"
ban4jp	3:a2715e9c7737	1207	#endif /* UIP_HTONS */
ban4jp	0:685224d2f66d	1208
ban4jp	0:685224d2f66d	1209	/**
ban4jp	3:a2715e9c7737	1210	* Convert a 16-bit quantity from host byte order to network byte order.
ban4jp	0:685224d2f66d	1211	*
ban4jp	0:685224d2f66d	1212	* This function is primarily used for converting variables from host
ban4jp	0:685224d2f66d	1213	* byte order to network byte order. For converting constants to
ban4jp	3:a2715e9c7737	1214	* network byte order, use the UIP_HTONS() macro instead.
ban4jp	0:685224d2f66d	1215	*/
ban4jp	3:a2715e9c7737	1216	#ifndef uip_htons
ban4jp	3:a2715e9c7737	1217	CCIF uint16_t uip_htons(uint16_t val);
ban4jp	3:a2715e9c7737	1218	#endif /* uip_htons */
ban4jp	3:a2715e9c7737	1219	#ifndef uip_ntohs
ban4jp	3:a2715e9c7737	1220	#define uip_ntohs uip_htons
ban4jp	3:a2715e9c7737	1221	#endif
ban4jp	3:a2715e9c7737	1222
ban4jp	3:a2715e9c7737	1223	#ifndef uip_htonl
ban4jp	3:a2715e9c7737	1224	CCIF uint32_t uip_htonl(uint32_t val);
ban4jp	3:a2715e9c7737	1225	#endif /* uip_htonl */
ban4jp	3:a2715e9c7737	1226	#ifndef uip_ntohl
ban4jp	3:a2715e9c7737	1227	#define uip_ntohl uip_htonl
ban4jp	0:685224d2f66d	1228	#endif
ban4jp	0:685224d2f66d	1229
ban4jp	0:685224d2f66d	1230	/** @} */
ban4jp	0:685224d2f66d	1231
ban4jp	0:685224d2f66d	1232	/**
ban4jp	0:685224d2f66d	1233	* Pointer to the application data in the packet buffer.
ban4jp	0:685224d2f66d	1234	*
ban4jp	0:685224d2f66d	1235	* This pointer points to the application data when the application is
ban4jp	0:685224d2f66d	1236	* called. If the application wishes to send data, the application may
ban4jp	0:685224d2f66d	1237	* use this space to write the data into before calling uip_send().
ban4jp	0:685224d2f66d	1238	*/
ban4jp	3:a2715e9c7737	1239	CCIF extern void *uip_appdata;
ban4jp	0:685224d2f66d	1240
ban4jp	0:685224d2f66d	1241	#if UIP_URGDATA > 0
ban4jp	3:a2715e9c7737	1242	/* uint8_t *uip_urgdata:
ban4jp	0:685224d2f66d	1243	*
ban4jp	0:685224d2f66d	1244	* This pointer points to any urgent data that has been received. Only
ban4jp	0:685224d2f66d	1245	* present if compiled with support for urgent data (UIP_URGDATA).
ban4jp	0:685224d2f66d	1246	*/
ban4jp	0:685224d2f66d	1247	extern void *uip_urgdata;
ban4jp	0:685224d2f66d	1248	#endif /* UIP_URGDATA > 0 */
ban4jp	0:685224d2f66d	1249
ban4jp	0:685224d2f66d	1250
ban4jp	0:685224d2f66d	1251	/**
ban4jp	0:685224d2f66d	1252	* \defgroup uipdrivervars Variables used in uIP device drivers
ban4jp	0:685224d2f66d	1253	* @{
ban4jp	0:685224d2f66d	1254	*
ban4jp	0:685224d2f66d	1255	* uIP has a few global variables that are used in device drivers for
ban4jp	0:685224d2f66d	1256	* uIP.
ban4jp	0:685224d2f66d	1257	*/
ban4jp	0:685224d2f66d	1258
ban4jp	0:685224d2f66d	1259	/**
ban4jp	0:685224d2f66d	1260	* The length of the packet in the uip_buf buffer.
ban4jp	0:685224d2f66d	1261	*
ban4jp	0:685224d2f66d	1262	* The global variable uip_len holds the length of the packet in the
ban4jp	0:685224d2f66d	1263	* uip_buf buffer.
ban4jp	0:685224d2f66d	1264	*
ban4jp	0:685224d2f66d	1265	* When the network device driver calls the uIP input function,
ban4jp	0:685224d2f66d	1266	* uip_len should be set to the length of the packet in the uip_buf
ban4jp	0:685224d2f66d	1267	* buffer.
ban4jp	0:685224d2f66d	1268	*
ban4jp	0:685224d2f66d	1269	* When sending packets, the device driver should use the contents of
ban4jp	0:685224d2f66d	1270	* the uip_len variable to determine the length of the outgoing
ban4jp	0:685224d2f66d	1271	* packet.
ban4jp	0:685224d2f66d	1272	*
ban4jp	0:685224d2f66d	1273	*/
ban4jp	3:a2715e9c7737	1274	CCIF extern uint16_t uip_len;
ban4jp	0:685224d2f66d	1275
ban4jp	3:a2715e9c7737	1276	/**
ban4jp	3:a2715e9c7737	1277	* The length of the extension headers
ban4jp	3:a2715e9c7737	1278	*/
ban4jp	3:a2715e9c7737	1279	extern uint8_t uip_ext_len;
ban4jp	0:685224d2f66d	1280	/** @} */
ban4jp	0:685224d2f66d	1281
ban4jp	0:685224d2f66d	1282	#if UIP_URGDATA > 0
ban4jp	3:a2715e9c7737	1283	extern uint16_t uip_urglen, uip_surglen;
ban4jp	0:685224d2f66d	1284	#endif /* UIP_URGDATA > 0 */
ban4jp	0:685224d2f66d	1285
ban4jp	0:685224d2f66d	1286
ban4jp	0:685224d2f66d	1287	/**
ban4jp	0:685224d2f66d	1288	* Representation of a uIP TCP connection.
ban4jp	0:685224d2f66d	1289	*
ban4jp	0:685224d2f66d	1290	* The uip_conn structure is used for identifying a connection. All
ban4jp	0:685224d2f66d	1291	* but one field in the structure are to be considered read-only by an
ban4jp	3:a2715e9c7737	1292	* application. The only exception is the appstate field whose purpose
ban4jp	0:685224d2f66d	1293	* is to let the application store application-specific state (e.g.,
ban4jp	0:685224d2f66d	1294	* file pointers) for the connection. The type of this field is
ban4jp	0:685224d2f66d	1295	* configured in the "uipopt.h" header file.
ban4jp	0:685224d2f66d	1296	*/
ban4jp	0:685224d2f66d	1297	struct uip_conn {
ban4jp	0:685224d2f66d	1298	uip_ipaddr_t ripaddr; /*< The IP address of the remote host. /
ban4jp	0:685224d2f66d	1299
ban4jp	3:a2715e9c7737	1300	uint16_t lport; /*< The local TCP port, in network byte order. /
ban4jp	3:a2715e9c7737	1301	uint16_t rport; /**< The local remote TCP port, in network byte
ban4jp	0:685224d2f66d	1302	order. */
ban4jp	0:685224d2f66d	1303
ban4jp	3:a2715e9c7737	1304	uint8_t rcv_nxt[4]; /**< The sequence number that we expect to
ban4jp	0:685224d2f66d	1305	receive next. */
ban4jp	3:a2715e9c7737	1306	uint8_t snd_nxt[4]; /**< The sequence number that was last sent by
ban4jp	0:685224d2f66d	1307	us. */
ban4jp	3:a2715e9c7737	1308	uint16_t len; /*< Length of the data that was previously sent. /
ban4jp	3:a2715e9c7737	1309	uint16_t mss; /**< Current maximum segment size for the
ban4jp	0:685224d2f66d	1310	connection. */
ban4jp	3:a2715e9c7737	1311	uint16_t initialmss; /**< Initial maximum segment size for the
ban4jp	0:685224d2f66d	1312	connection. */
ban4jp	3:a2715e9c7737	1313	uint8_t sa; /**< Retransmission time-out calculation state
ban4jp	0:685224d2f66d	1314	variable. */
ban4jp	3:a2715e9c7737	1315	uint8_t sv; /**< Retransmission time-out calculation state
ban4jp	0:685224d2f66d	1316	variable. */
ban4jp	3:a2715e9c7737	1317	uint8_t rto; /*< Retransmission time-out. /
ban4jp	3:a2715e9c7737	1318	uint8_t tcpstateflags; /*< TCP state and flags. /
ban4jp	3:a2715e9c7737	1319	uint8_t timer; /*< The retransmission timer. /
ban4jp	3:a2715e9c7737	1320	uint8_t nrtx; /**< The number of retransmissions for the last
ban4jp	0:685224d2f66d	1321	segment sent. */
ban4jp	0:685224d2f66d	1322
ban4jp	0:685224d2f66d	1323	/** The application state. */
ban4jp	0:685224d2f66d	1324	uip_tcp_appstate_t appstate;
ban4jp	0:685224d2f66d	1325	};
ban4jp	0:685224d2f66d	1326
ban4jp	0:685224d2f66d	1327
ban4jp	0:685224d2f66d	1328	/**
ban4jp	0:685224d2f66d	1329	* Pointer to the current TCP connection.
ban4jp	0:685224d2f66d	1330	*
ban4jp	0:685224d2f66d	1331	* The uip_conn pointer can be used to access the current TCP
ban4jp	0:685224d2f66d	1332	* connection.
ban4jp	0:685224d2f66d	1333	*/
ban4jp	3:a2715e9c7737	1334
ban4jp	3:a2715e9c7737	1335	CCIF extern struct uip_conn *uip_conn;
ban4jp	3:a2715e9c7737	1336	#if UIP_TCP
ban4jp	0:685224d2f66d	1337	/* The array containing all uIP connections. */
ban4jp	3:a2715e9c7737	1338	CCIF extern struct uip_conn uip_conns[UIP_CONNS];
ban4jp	3:a2715e9c7737	1339	#endif
ban4jp	3:a2715e9c7737	1340
ban4jp	0:685224d2f66d	1341	/**
ban4jp	0:685224d2f66d	1342	* \addtogroup uiparch
ban4jp	0:685224d2f66d	1343	* @{
ban4jp	0:685224d2f66d	1344	*/
ban4jp	0:685224d2f66d	1345
ban4jp	0:685224d2f66d	1346	/**
ban4jp	0:685224d2f66d	1347	* 4-byte array used for the 32-bit sequence number calculations.
ban4jp	0:685224d2f66d	1348	*/
ban4jp	3:a2715e9c7737	1349	extern uint8_t uip_acc32[4];
ban4jp	0:685224d2f66d	1350	/** @} */
ban4jp	0:685224d2f66d	1351
ban4jp	0:685224d2f66d	1352
ban4jp	0:685224d2f66d	1353	#if UIP_UDP
ban4jp	0:685224d2f66d	1354	/**
ban4jp	0:685224d2f66d	1355	* Representation of a uIP UDP connection.
ban4jp	0:685224d2f66d	1356	*/
ban4jp	0:685224d2f66d	1357	struct uip_udp_conn {
ban4jp	0:685224d2f66d	1358	uip_ipaddr_t ripaddr; /*< The IP address of the remote peer. /
ban4jp	3:a2715e9c7737	1359	uint16_t lport; /*< The local port number in network byte order. /
ban4jp	3:a2715e9c7737	1360	uint16_t rport; /*< The remote port number in network byte order. /
ban4jp	3:a2715e9c7737	1361	uint8_t ttl; /*< Default time-to-live. /
ban4jp	0:685224d2f66d	1362
ban4jp	0:685224d2f66d	1363	/** The application state. */
ban4jp	0:685224d2f66d	1364	uip_udp_appstate_t appstate;
ban4jp	0:685224d2f66d	1365	};
ban4jp	0:685224d2f66d	1366
ban4jp	0:685224d2f66d	1367	/**
ban4jp	0:685224d2f66d	1368	* The current UDP connection.
ban4jp	0:685224d2f66d	1369	*/
ban4jp	0:685224d2f66d	1370	extern struct uip_udp_conn *uip_udp_conn;
ban4jp	0:685224d2f66d	1371	extern struct uip_udp_conn uip_udp_conns[UIP_UDP_CONNS];
ban4jp	0:685224d2f66d	1372	#endif /* UIP_UDP */
ban4jp	0:685224d2f66d	1373
ban4jp	3:a2715e9c7737	1374	struct uip_fallback_interface {
ban4jp	3:a2715e9c7737	1375	void (*init)(void);
ban4jp	3:a2715e9c7737	1376	void (*output)(void);
ban4jp	3:a2715e9c7737	1377	};
ban4jp	3:a2715e9c7737	1378
ban4jp	3:a2715e9c7737	1379	#if UIP_CONF_ICMP6
ban4jp	3:a2715e9c7737	1380	struct uip_icmp6_conn {
ban4jp	3:a2715e9c7737	1381	uip_icmp6_appstate_t appstate;
ban4jp	3:a2715e9c7737	1382	};
ban4jp	3:a2715e9c7737	1383	extern struct uip_icmp6_conn uip_icmp6_conns;
ban4jp	3:a2715e9c7737	1384	#endif /UIP_CONF_ICMP6/
ban4jp	3:a2715e9c7737	1385
ban4jp	3:a2715e9c7737	1386	/**
ban4jp	3:a2715e9c7737	1387	* The uIP TCP/IP statistics.
ban4jp	3:a2715e9c7737	1388	*
ban4jp	3:a2715e9c7737	1389	* This is the variable in which the uIP TCP/IP statistics are gathered.
ban4jp	3:a2715e9c7737	1390	*/
ban4jp	3:a2715e9c7737	1391	#if UIP_STATISTICS == 1
ban4jp	3:a2715e9c7737	1392	extern struct uip_stats uip_stat;
ban4jp	3:a2715e9c7737	1393	#define UIP_STAT(s) s
ban4jp	3:a2715e9c7737	1394	#else
ban4jp	3:a2715e9c7737	1395	#define UIP_STAT(s)
ban4jp	3:a2715e9c7737	1396	#endif /* UIP_STATISTICS == 1 */
ban4jp	3:a2715e9c7737	1397
ban4jp	0:685224d2f66d	1398	/**
ban4jp	0:685224d2f66d	1399	* The structure holding the TCP/IP statistics that are gathered if
ban4jp	0:685224d2f66d	1400	* UIP_STATISTICS is set to 1.
ban4jp	0:685224d2f66d	1401	*
ban4jp	0:685224d2f66d	1402	*/
ban4jp	0:685224d2f66d	1403	struct uip_stats {
ban4jp	0:685224d2f66d	1404	struct {
ban4jp	0:685224d2f66d	1405	uip_stats_t recv; /**< Number of received packets at the IP
ban4jp	0:685224d2f66d	1406	layer. */
ban4jp	0:685224d2f66d	1407	uip_stats_t sent; /**< Number of sent packets at the IP
ban4jp	0:685224d2f66d	1408	layer. */
ban4jp	3:a2715e9c7737	1409	uip_stats_t forwarded;/**< Number of forwarded packets at the IP
ban4jp	3:a2715e9c7737	1410	layer. */
ban4jp	3:a2715e9c7737	1411	uip_stats_t drop; /**< Number of dropped packets at the IP
ban4jp	3:a2715e9c7737	1412	layer. */
ban4jp	0:685224d2f66d	1413	uip_stats_t vhlerr; /**< Number of packets dropped due to wrong
ban4jp	0:685224d2f66d	1414	IP version or header length. */
ban4jp	0:685224d2f66d	1415	uip_stats_t hblenerr; /**< Number of packets dropped due to wrong
ban4jp	0:685224d2f66d	1416	IP length, high byte. */
ban4jp	0:685224d2f66d	1417	uip_stats_t lblenerr; /**< Number of packets dropped due to wrong
ban4jp	0:685224d2f66d	1418	IP length, low byte. */
ban4jp	3:a2715e9c7737	1419	uip_stats_t fragerr; /**< Number of packets dropped because they
ban4jp	0:685224d2f66d	1420	were IP fragments. */
ban4jp	0:685224d2f66d	1421	uip_stats_t chkerr; /**< Number of packets dropped due to IP
ban4jp	0:685224d2f66d	1422	checksum errors. */
ban4jp	3:a2715e9c7737	1423	uip_stats_t protoerr; /**< Number of packets dropped because they
ban4jp	0:685224d2f66d	1424	were neither ICMP, UDP nor TCP. */
ban4jp	0:685224d2f66d	1425	} ip; /*< IP statistics. /
ban4jp	0:685224d2f66d	1426	struct {
ban4jp	0:685224d2f66d	1427	uip_stats_t recv; /*< Number of received ICMP packets. /
ban4jp	0:685224d2f66d	1428	uip_stats_t sent; /*< Number of sent ICMP packets. /
ban4jp	3:a2715e9c7737	1429	uip_stats_t drop; /*< Number of dropped ICMP packets. /
ban4jp	0:685224d2f66d	1430	uip_stats_t typeerr; /**< Number of ICMP packets with a wrong
ban4jp	0:685224d2f66d	1431	type. */
ban4jp	3:a2715e9c7737	1432	uip_stats_t chkerr; /**< Number of ICMP packets with a bad
ban4jp	3:a2715e9c7737	1433	checksum. */
ban4jp	0:685224d2f66d	1434	} icmp; /*< ICMP statistics. /
ban4jp	3:a2715e9c7737	1435	#if UIP_TCP
ban4jp	0:685224d2f66d	1436	struct {
ban4jp	0:685224d2f66d	1437	uip_stats_t recv; /*< Number of recived TCP segments. /
ban4jp	0:685224d2f66d	1438	uip_stats_t sent; /*< Number of sent TCP segments. /
ban4jp	3:a2715e9c7737	1439	uip_stats_t drop; /*< Number of dropped TCP segments. /
ban4jp	0:685224d2f66d	1440	uip_stats_t chkerr; /**< Number of TCP segments with a bad
ban4jp	0:685224d2f66d	1441	checksum. */
ban4jp	0:685224d2f66d	1442	uip_stats_t ackerr; /**< Number of TCP segments with a bad ACK
ban4jp	0:685224d2f66d	1443	number. */
ban4jp	3:a2715e9c7737	1444	uip_stats_t rst; /*< Number of received TCP RST (reset) segments. /
ban4jp	0:685224d2f66d	1445	uip_stats_t rexmit; /*< Number of retransmitted TCP segments. /
ban4jp	3:a2715e9c7737	1446	uip_stats_t syndrop; /**< Number of dropped SYNs because too few
ban4jp	3:a2715e9c7737	1447	connections were available. */
ban4jp	0:685224d2f66d	1448	uip_stats_t synrst; /**< Number of SYNs for closed ports,
ban4jp	0:685224d2f66d	1449	triggering a RST. */
ban4jp	0:685224d2f66d	1450	} tcp; /*< TCP statistics. /
ban4jp	3:a2715e9c7737	1451	#endif
ban4jp	0:685224d2f66d	1452	#if UIP_UDP
ban4jp	0:685224d2f66d	1453	struct {
ban4jp	0:685224d2f66d	1454	uip_stats_t drop; /*< Number of dropped UDP segments. /
ban4jp	0:685224d2f66d	1455	uip_stats_t recv; /*< Number of recived UDP segments. /
ban4jp	0:685224d2f66d	1456	uip_stats_t sent; /*< Number of sent UDP segments. /
ban4jp	0:685224d2f66d	1457	uip_stats_t chkerr; /**< Number of UDP segments with a bad
ban4jp	0:685224d2f66d	1458	checksum. */
ban4jp	0:685224d2f66d	1459	} udp; /*< UDP statistics. /
ban4jp	0:685224d2f66d	1460	#endif /* UIP_UDP */
ban4jp	3:a2715e9c7737	1461	#if UIP_CONF_IPV6
ban4jp	3:a2715e9c7737	1462	struct {
ban4jp	3:a2715e9c7737	1463	uip_stats_t drop; /*< Number of dropped ND6 packets. /
ban4jp	3:a2715e9c7737	1464	uip_stats_t recv; /*< Number of recived ND6 packets /
ban4jp	3:a2715e9c7737	1465	uip_stats_t sent; /*< Number of sent ND6 packets /
ban4jp	3:a2715e9c7737	1466	} nd6;
ban4jp	3:a2715e9c7737	1467	#endif /UIP_CONF_IPV6/
ban4jp	0:685224d2f66d	1468	};
ban4jp	0:685224d2f66d	1469
ban4jp	0:685224d2f66d	1470
ban4jp	0:685224d2f66d	1471	/---------------------------------------------------------------------------/
ban4jp	0:685224d2f66d	1472	/* All the stuff below this point is internal to uIP and should not be
ban4jp	0:685224d2f66d	1473	* used directly by an application or by a device driver.
ban4jp	0:685224d2f66d	1474	*/
ban4jp	0:685224d2f66d	1475	/---------------------------------------------------------------------------/
ban4jp	3:a2715e9c7737	1476
ban4jp	3:a2715e9c7737	1477
ban4jp	3:a2715e9c7737	1478
ban4jp	3:a2715e9c7737	1479	/* uint8_t uip_flags:
ban4jp	0:685224d2f66d	1480	*
ban4jp	0:685224d2f66d	1481	* When the application is called, uip_flags will contain the flags
ban4jp	0:685224d2f66d	1482	* that are defined in this file. Please read below for more
ban4jp	3:a2715e9c7737	1483	* information.
ban4jp	0:685224d2f66d	1484	*/
ban4jp	3:a2715e9c7737	1485	CCIF extern uint8_t uip_flags;
ban4jp	0:685224d2f66d	1486
ban4jp	0:685224d2f66d	1487	/* The following flags may be set in the global variable uip_flags
ban4jp	0:685224d2f66d	1488	before calling the application callback. The UIP_ACKDATA,
ban4jp	0:685224d2f66d	1489	UIP_NEWDATA, and UIP_CLOSE flags may both be set at the same time,
ban4jp	3:a2715e9c7737	1490	whereas the others are mutually exclusive. Note that these flags
ban4jp	0:685224d2f66d	1491	should NOT be accessed directly, but only through the uIP
ban4jp	0:685224d2f66d	1492	functions/macros. */
ban4jp	0:685224d2f66d	1493
ban4jp	0:685224d2f66d	1494	#define UIP_ACKDATA 1 /* Signifies that the outstanding data was
ban4jp	0:685224d2f66d	1495	acked and the application should send
ban4jp	0:685224d2f66d	1496	out new data instead of retransmitting
ban4jp	0:685224d2f66d	1497	the last data. */
ban4jp	0:685224d2f66d	1498	#define UIP_NEWDATA 2 /* Flags the fact that the peer has sent
ban4jp	0:685224d2f66d	1499	us new data. */
ban4jp	0:685224d2f66d	1500	#define UIP_REXMIT 4 /* Tells the application to retransmit the
ban4jp	0:685224d2f66d	1501	data that was last sent. */
ban4jp	0:685224d2f66d	1502	#define UIP_POLL 8 /* Used for polling the application, to
ban4jp	0:685224d2f66d	1503	check if the application has data that
ban4jp	0:685224d2f66d	1504	it wants to send. */
ban4jp	0:685224d2f66d	1505	#define UIP_CLOSE 16 /* The remote host has closed the
ban4jp	0:685224d2f66d	1506	connection, thus the connection has
ban4jp	0:685224d2f66d	1507	gone away. Or the application signals
ban4jp	0:685224d2f66d	1508	that it wants to close the
ban4jp	0:685224d2f66d	1509	connection. */
ban4jp	0:685224d2f66d	1510	#define UIP_ABORT 32 /* The remote host has aborted the
ban4jp	0:685224d2f66d	1511	connection, thus the connection has
ban4jp	0:685224d2f66d	1512	gone away. Or the application signals
ban4jp	0:685224d2f66d	1513	that it wants to abort the
ban4jp	0:685224d2f66d	1514	connection. */
ban4jp	0:685224d2f66d	1515	#define UIP_CONNECTED 64 /* We have got a connection from a remote
ban4jp	0:685224d2f66d	1516	host and have set up a new connection
ban4jp	0:685224d2f66d	1517	for it, or an active connection has
ban4jp	0:685224d2f66d	1518	been successfully established. */
ban4jp	0:685224d2f66d	1519
ban4jp	0:685224d2f66d	1520	#define UIP_TIMEDOUT 128 /* The connection has been aborted due to
ban4jp	0:685224d2f66d	1521	too many retransmissions. */
ban4jp	0:685224d2f66d	1522
ban4jp	3:a2715e9c7737	1523
ban4jp	3:a2715e9c7737	1524	/**
ban4jp	3:a2715e9c7737	1525	* \brief process the options within a hop by hop or destination option header
ban4jp	3:a2715e9c7737	1526	* \retval 0: nothing to send,
ban4jp	3:a2715e9c7737	1527	* \retval 1: drop pkt
ban4jp	3:a2715e9c7737	1528	* \retval 2: ICMP error message to send
ban4jp	3:a2715e9c7737	1529	*/
ban4jp	3:a2715e9c7737	1530	/*static uint8_t
ban4jp	3:a2715e9c7737	1531	uip_ext_hdr_options_process(); */
ban4jp	3:a2715e9c7737	1532
ban4jp	0:685224d2f66d	1533	/* uip_process(flag):
ban4jp	0:685224d2f66d	1534	*
ban4jp	0:685224d2f66d	1535	* The actual uIP function which does all the work.
ban4jp	0:685224d2f66d	1536	*/
ban4jp	3:a2715e9c7737	1537	void uip_process(uint8_t flag);
ban4jp	3:a2715e9c7737	1538
ban4jp	3:a2715e9c7737	1539	/* The following flags are passed as an argument to the uip_process()
ban4jp	0:685224d2f66d	1540	function. They are used to distinguish between the two cases where
ban4jp	0:685224d2f66d	1541	uip_process() is called. It can be called either because we have
ban4jp	0:685224d2f66d	1542	incoming data that should be processed, or because the periodic
ban4jp	0:685224d2f66d	1543	timer has fired. These values are never used directly, but only in
ban4jp	3:a2715e9c7737	1544	the macros defined in this file. */
ban4jp	0:685224d2f66d	1545
ban4jp	0:685224d2f66d	1546	#define UIP_DATA 1 /* Tells uIP that there is incoming
ban4jp	0:685224d2f66d	1547	data in the uip_buf buffer. The
ban4jp	0:685224d2f66d	1548	length of the data is stored in the
ban4jp	0:685224d2f66d	1549	global variable uip_len. */
ban4jp	0:685224d2f66d	1550	#define UIP_TIMER 2 /* Tells uIP that the periodic timer
ban4jp	0:685224d2f66d	1551	has fired. */
ban4jp	0:685224d2f66d	1552	#define UIP_POLL_REQUEST 3 /* Tells uIP that a connection should
ban4jp	0:685224d2f66d	1553	be polled. */
ban4jp	0:685224d2f66d	1554	#define UIP_UDP_SEND_CONN 4 /* Tells uIP that a UDP datagram
ban4jp	0:685224d2f66d	1555	should be constructed in the
ban4jp	0:685224d2f66d	1556	uip_buf buffer. */
ban4jp	0:685224d2f66d	1557	#if UIP_UDP
ban4jp	0:685224d2f66d	1558	#define UIP_UDP_TIMER 5
ban4jp	0:685224d2f66d	1559	#endif /* UIP_UDP */
ban4jp	0:685224d2f66d	1560
ban4jp	0:685224d2f66d	1561	/* The TCP states used in the uip_conn->tcpstateflags. */
ban4jp	0:685224d2f66d	1562	#define UIP_CLOSED 0
ban4jp	0:685224d2f66d	1563	#define UIP_SYN_RCVD 1
ban4jp	0:685224d2f66d	1564	#define UIP_SYN_SENT 2
ban4jp	0:685224d2f66d	1565	#define UIP_ESTABLISHED 3
ban4jp	0:685224d2f66d	1566	#define UIP_FIN_WAIT_1 4
ban4jp	0:685224d2f66d	1567	#define UIP_FIN_WAIT_2 5
ban4jp	0:685224d2f66d	1568	#define UIP_CLOSING 6
ban4jp	0:685224d2f66d	1569	#define UIP_TIME_WAIT 7
ban4jp	0:685224d2f66d	1570	#define UIP_LAST_ACK 8
ban4jp	0:685224d2f66d	1571	#define UIP_TS_MASK 15
ban4jp	0:685224d2f66d	1572
ban4jp	0:685224d2f66d	1573	#define UIP_STOPPED 16
ban4jp	0:685224d2f66d	1574
ban4jp	0:685224d2f66d	1575	/* The TCP and IP headers. */
ban4jp	0:685224d2f66d	1576	struct uip_tcpip_hdr {
ban4jp	0:685224d2f66d	1577	#if UIP_CONF_IPV6
ban4jp	0:685224d2f66d	1578	/* IPv6 header. */
ban4jp	3:a2715e9c7737	1579	uint8_t vtc,
ban4jp	0:685224d2f66d	1580	tcflow;
ban4jp	3:a2715e9c7737	1581	uint16_t flow;
ban4jp	3:a2715e9c7737	1582	uint8_t len[2];
ban4jp	3:a2715e9c7737	1583	uint8_t proto, ttl;
ban4jp	0:685224d2f66d	1584	uip_ip6addr_t srcipaddr, destipaddr;
ban4jp	0:685224d2f66d	1585	#else /* UIP_CONF_IPV6 */
ban4jp	0:685224d2f66d	1586	/* IPv4 header. */
ban4jp	3:a2715e9c7737	1587	uint8_t vhl,
ban4jp	0:685224d2f66d	1588	tos,
ban4jp	0:685224d2f66d	1589	len[2],
ban4jp	0:685224d2f66d	1590	ipid[2],
ban4jp	0:685224d2f66d	1591	ipoffset[2],
ban4jp	0:685224d2f66d	1592	ttl,
ban4jp	0:685224d2f66d	1593	proto;
ban4jp	3:a2715e9c7737	1594	uint16_t ipchksum;
ban4jp	3:a2715e9c7737	1595	uip_ipaddr_t srcipaddr, destipaddr;
ban4jp	0:685224d2f66d	1596	#endif /* UIP_CONF_IPV6 */
ban4jp	0:685224d2f66d	1597
ban4jp	0:685224d2f66d	1598	/* TCP header. */
ban4jp	3:a2715e9c7737	1599	uint16_t srcport,
ban4jp	0:685224d2f66d	1600	destport;
ban4jp	3:a2715e9c7737	1601	uint8_t seqno[4],
ban4jp	0:685224d2f66d	1602	ackno[4],
ban4jp	0:685224d2f66d	1603	tcpoffset,
ban4jp	0:685224d2f66d	1604	flags,
ban4jp	0:685224d2f66d	1605	wnd[2];
ban4jp	3:a2715e9c7737	1606	uint16_t tcpchksum;
ban4jp	3:a2715e9c7737	1607	uint8_t urgp[2];
ban4jp	3:a2715e9c7737	1608	uint8_t optdata[4];
ban4jp	0:685224d2f66d	1609	};
ban4jp	0:685224d2f66d	1610
ban4jp	0:685224d2f66d	1611	/* The ICMP and IP headers. */
ban4jp	0:685224d2f66d	1612	struct uip_icmpip_hdr {
ban4jp	0:685224d2f66d	1613	#if UIP_CONF_IPV6
ban4jp	0:685224d2f66d	1614	/* IPv6 header. */
ban4jp	3:a2715e9c7737	1615	uint8_t vtc,
ban4jp	0:685224d2f66d	1616	tcf;
ban4jp	3:a2715e9c7737	1617	uint16_t flow;
ban4jp	3:a2715e9c7737	1618	uint8_t len[2];
ban4jp	3:a2715e9c7737	1619	uint8_t proto, ttl;
ban4jp	0:685224d2f66d	1620	uip_ip6addr_t srcipaddr, destipaddr;
ban4jp	0:685224d2f66d	1621	#else /* UIP_CONF_IPV6 */
ban4jp	0:685224d2f66d	1622	/* IPv4 header. */
ban4jp	3:a2715e9c7737	1623	uint8_t vhl,
ban4jp	0:685224d2f66d	1624	tos,
ban4jp	0:685224d2f66d	1625	len[2],
ban4jp	0:685224d2f66d	1626	ipid[2],
ban4jp	0:685224d2f66d	1627	ipoffset[2],
ban4jp	0:685224d2f66d	1628	ttl,
ban4jp	0:685224d2f66d	1629	proto;
ban4jp	3:a2715e9c7737	1630	uint16_t ipchksum;
ban4jp	3:a2715e9c7737	1631	uip_ipaddr_t srcipaddr, destipaddr;
ban4jp	0:685224d2f66d	1632	#endif /* UIP_CONF_IPV6 */
ban4jp	0:685224d2f66d	1633
ban4jp	3:a2715e9c7737	1634	/* ICMP header. */
ban4jp	3:a2715e9c7737	1635	uint8_t type, icode;
ban4jp	3:a2715e9c7737	1636	uint16_t icmpchksum;
ban4jp	0:685224d2f66d	1637	#if !UIP_CONF_IPV6
ban4jp	3:a2715e9c7737	1638	uint16_t id, seqno;
ban4jp	3:a2715e9c7737	1639	uint8_t payload[1];
ban4jp	0:685224d2f66d	1640	#endif /* !UIP_CONF_IPV6 */
ban4jp	0:685224d2f66d	1641	};
ban4jp	0:685224d2f66d	1642
ban4jp	0:685224d2f66d	1643
ban4jp	0:685224d2f66d	1644	/* The UDP and IP headers. */
ban4jp	0:685224d2f66d	1645	struct uip_udpip_hdr {
ban4jp	0:685224d2f66d	1646	#if UIP_CONF_IPV6
ban4jp	0:685224d2f66d	1647	/* IPv6 header. */
ban4jp	3:a2715e9c7737	1648	uint8_t vtc,
ban4jp	0:685224d2f66d	1649	tcf;
ban4jp	3:a2715e9c7737	1650	uint16_t flow;
ban4jp	3:a2715e9c7737	1651	uint8_t len[2];
ban4jp	3:a2715e9c7737	1652	uint8_t proto, ttl;
ban4jp	0:685224d2f66d	1653	uip_ip6addr_t srcipaddr, destipaddr;
ban4jp	0:685224d2f66d	1654	#else /* UIP_CONF_IPV6 */
ban4jp	0:685224d2f66d	1655	/* IP header. */
ban4jp	3:a2715e9c7737	1656	uint8_t vhl,
ban4jp	3:a2715e9c7737	1657	tos,
ban4jp	3:a2715e9c7737	1658	len[2],
ban4jp	3:a2715e9c7737	1659	ipid[2],
ban4jp	3:a2715e9c7737	1660	ipoffset[2],
ban4jp	3:a2715e9c7737	1661	ttl,
ban4jp	3:a2715e9c7737	1662	proto;
ban4jp	3:a2715e9c7737	1663	uint16_t ipchksum;
ban4jp	3:a2715e9c7737	1664	uip_ipaddr_t srcipaddr, destipaddr;
ban4jp	3:a2715e9c7737	1665	#endif /* UIP_CONF_IPV6 */
ban4jp	3:a2715e9c7737	1666
ban4jp	3:a2715e9c7737	1667	/* UDP header. */
ban4jp	3:a2715e9c7737	1668	uint16_t srcport,
ban4jp	3:a2715e9c7737	1669	destport;
ban4jp	3:a2715e9c7737	1670	uint16_t udplen;
ban4jp	3:a2715e9c7737	1671	uint16_t udpchksum;
ban4jp	3:a2715e9c7737	1672	};
ban4jp	3:a2715e9c7737	1673
ban4jp	3:a2715e9c7737	1674	/*
ban4jp	3:a2715e9c7737	1675	* In IPv6 the length of the L3 headers before the transport header is
ban4jp	3:a2715e9c7737	1676	* not fixed, due to the possibility to include extension option headers
ban4jp	3:a2715e9c7737	1677	* after the IP header. hence we split here L3 and L4 headers
ban4jp	3:a2715e9c7737	1678	*/
ban4jp	3:a2715e9c7737	1679	/* The IP header */
ban4jp	3:a2715e9c7737	1680	struct uip_ip_hdr {
ban4jp	3:a2715e9c7737	1681	#if UIP_CONF_IPV6
ban4jp	3:a2715e9c7737	1682	/* IPV6 header */
ban4jp	3:a2715e9c7737	1683	uint8_t vtc;
ban4jp	3:a2715e9c7737	1684	uint8_t tcflow;
ban4jp	3:a2715e9c7737	1685	uint16_t flow;
ban4jp	3:a2715e9c7737	1686	uint8_t len[2];
ban4jp	3:a2715e9c7737	1687	uint8_t proto, ttl;
ban4jp	3:a2715e9c7737	1688	uip_ip6addr_t srcipaddr, destipaddr;
ban4jp	3:a2715e9c7737	1689	#else /* UIP_CONF_IPV6 */
ban4jp	3:a2715e9c7737	1690	/* IPV4 header */
ban4jp	3:a2715e9c7737	1691	uint8_t vhl,
ban4jp	0:685224d2f66d	1692	tos,
ban4jp	0:685224d2f66d	1693	len[2],
ban4jp	0:685224d2f66d	1694	ipid[2],
ban4jp	0:685224d2f66d	1695	ipoffset[2],
ban4jp	0:685224d2f66d	1696	ttl,
ban4jp	0:685224d2f66d	1697	proto;
ban4jp	3:a2715e9c7737	1698	uint16_t ipchksum;
ban4jp	3:a2715e9c7737	1699	uip_ipaddr_t srcipaddr, destipaddr;
ban4jp	0:685224d2f66d	1700	#endif /* UIP_CONF_IPV6 */
ban4jp	0:685224d2f66d	1701	};
ban4jp	0:685224d2f66d	1702
ban4jp	0:685224d2f66d	1703
ban4jp	3:a2715e9c7737	1704	/*
ban4jp	3:a2715e9c7737	1705	* IPv6 extension option headers: we are able to process
ban4jp	3:a2715e9c7737	1706	* the 4 extension headers defined in RFC2460 (IPv6):
ban4jp	3:a2715e9c7737	1707	* - Hop by hop option header, destination option header:
ban4jp	3:a2715e9c7737	1708	* These two are not used by any core IPv6 protocol, hence
ban4jp	3:a2715e9c7737	1709	* we just read them and go to the next. They convey options,
ban4jp	3:a2715e9c7737	1710	* the options defined in RFC2460 are Pad1 and PadN, which do
ban4jp	3:a2715e9c7737	1711	* some padding, and that we do not need to read (the length
ban4jp	3:a2715e9c7737	1712	* field in the header is enough)
ban4jp	3:a2715e9c7737	1713	* - Routing header: this one is most notably used by MIPv6,
ban4jp	3:a2715e9c7737	1714	* which we do not implement, hence we just read it and go
ban4jp	3:a2715e9c7737	1715	* to the next
ban4jp	3:a2715e9c7737	1716	* - Fragmentation header: we read this header and are able to
ban4jp	3:a2715e9c7737	1717	* reassemble packets
ban4jp	3:a2715e9c7737	1718	*
ban4jp	3:a2715e9c7737	1719	* We do not offer any means to send packets with extension headers
ban4jp	3:a2715e9c7737	1720	*
ban4jp	3:a2715e9c7737	1721	* We do not implement Authentication and ESP headers, which are
ban4jp	3:a2715e9c7737	1722	* used in IPSec and defined in RFC4302,4303,4305,4385
ban4jp	3:a2715e9c7737	1723	*/
ban4jp	3:a2715e9c7737	1724	/* common header part */
ban4jp	3:a2715e9c7737	1725	typedef struct uip_ext_hdr {
ban4jp	3:a2715e9c7737	1726	uint8_t next;
ban4jp	3:a2715e9c7737	1727	uint8_t len;
ban4jp	3:a2715e9c7737	1728	} uip_ext_hdr;
ban4jp	3:a2715e9c7737	1729
ban4jp	3:a2715e9c7737	1730	/* Hop by Hop option header */
ban4jp	3:a2715e9c7737	1731	typedef struct uip_hbho_hdr {
ban4jp	3:a2715e9c7737	1732	uint8_t next;
ban4jp	3:a2715e9c7737	1733	uint8_t len;
ban4jp	3:a2715e9c7737	1734	} uip_hbho_hdr;
ban4jp	3:a2715e9c7737	1735
ban4jp	3:a2715e9c7737	1736	/* destination option header */
ban4jp	3:a2715e9c7737	1737	typedef struct uip_desto_hdr {
ban4jp	3:a2715e9c7737	1738	uint8_t next;
ban4jp	3:a2715e9c7737	1739	uint8_t len;
ban4jp	3:a2715e9c7737	1740	} uip_desto_hdr;
ban4jp	3:a2715e9c7737	1741
ban4jp	3:a2715e9c7737	1742	/* We do not define structures for PAD1 and PADN options */
ban4jp	3:a2715e9c7737	1743
ban4jp	3:a2715e9c7737	1744	/*
ban4jp	3:a2715e9c7737	1745	* routing header
ban4jp	3:a2715e9c7737	1746	* the routing header as 4 common bytes, then routing header type
ban4jp	3:a2715e9c7737	1747	* specific data there are several types of routing header. Type 0 was
ban4jp	3:a2715e9c7737	1748	* deprecated as per RFC5095 most notable other type is 2, used in
ban4jp	3:a2715e9c7737	1749	* RFC3775 (MIPv6) here we do not implement MIPv6, so we just need to
ban4jp	3:a2715e9c7737	1750	* parse the 4 first bytes
ban4jp	3:a2715e9c7737	1751	*/
ban4jp	3:a2715e9c7737	1752	typedef struct uip_routing_hdr {
ban4jp	3:a2715e9c7737	1753	uint8_t next;
ban4jp	3:a2715e9c7737	1754	uint8_t len;
ban4jp	3:a2715e9c7737	1755	uint8_t routing_type;
ban4jp	3:a2715e9c7737	1756	uint8_t seg_left;
ban4jp	3:a2715e9c7737	1757	} uip_routing_hdr;
ban4jp	3:a2715e9c7737	1758
ban4jp	3:a2715e9c7737	1759	/* fragmentation header */
ban4jp	3:a2715e9c7737	1760	typedef struct uip_frag_hdr {
ban4jp	3:a2715e9c7737	1761	uint8_t next;
ban4jp	3:a2715e9c7737	1762	uint8_t res;
ban4jp	3:a2715e9c7737	1763	uint16_t offsetresmore;
ban4jp	3:a2715e9c7737	1764	uint32_t id;
ban4jp	3:a2715e9c7737	1765	} uip_frag_hdr;
ban4jp	3:a2715e9c7737	1766
ban4jp	3:a2715e9c7737	1767	/*
ban4jp	3:a2715e9c7737	1768	* an option within the destination or hop by hop option headers
ban4jp	3:a2715e9c7737	1769	* it contains type an length, which is true for all options but PAD1
ban4jp	3:a2715e9c7737	1770	*/
ban4jp	3:a2715e9c7737	1771	typedef struct uip_ext_hdr_opt {
ban4jp	3:a2715e9c7737	1772	uint8_t type;
ban4jp	3:a2715e9c7737	1773	uint8_t len;
ban4jp	3:a2715e9c7737	1774	} uip_ext_hdr_opt;
ban4jp	3:a2715e9c7737	1775
ban4jp	3:a2715e9c7737	1776	/* PADN option */
ban4jp	3:a2715e9c7737	1777	typedef struct uip_ext_hdr_opt_padn {
ban4jp	3:a2715e9c7737	1778	uint8_t opt_type;
ban4jp	3:a2715e9c7737	1779	uint8_t opt_len;
ban4jp	3:a2715e9c7737	1780	} uip_ext_hdr_opt_padn;
ban4jp	3:a2715e9c7737	1781
ban4jp	3:a2715e9c7737	1782	/* RPL option */
ban4jp	3:a2715e9c7737	1783	typedef struct uip_ext_hdr_opt_rpl {
ban4jp	3:a2715e9c7737	1784	uint8_t opt_type;
ban4jp	3:a2715e9c7737	1785	uint8_t opt_len;
ban4jp	3:a2715e9c7737	1786	uint8_t flags;
ban4jp	3:a2715e9c7737	1787	uint8_t instance;
ban4jp	3:a2715e9c7737	1788	uint16_t senderrank;
ban4jp	3:a2715e9c7737	1789	} uip_ext_hdr_opt_rpl;
ban4jp	3:a2715e9c7737	1790
ban4jp	3:a2715e9c7737	1791	/* TCP header */
ban4jp	3:a2715e9c7737	1792	struct uip_tcp_hdr {
ban4jp	3:a2715e9c7737	1793	uint16_t srcport;
ban4jp	3:a2715e9c7737	1794	uint16_t destport;
ban4jp	3:a2715e9c7737	1795	uint8_t seqno[4];
ban4jp	3:a2715e9c7737	1796	uint8_t ackno[4];
ban4jp	3:a2715e9c7737	1797	uint8_t tcpoffset;
ban4jp	3:a2715e9c7737	1798	uint8_t flags;
ban4jp	3:a2715e9c7737	1799	uint8_t wnd[2];
ban4jp	3:a2715e9c7737	1800	uint16_t tcpchksum;
ban4jp	3:a2715e9c7737	1801	uint8_t urgp[2];
ban4jp	3:a2715e9c7737	1802	uint8_t optdata[4];
ban4jp	3:a2715e9c7737	1803	};
ban4jp	3:a2715e9c7737	1804
ban4jp	3:a2715e9c7737	1805	/* The ICMP headers. */
ban4jp	3:a2715e9c7737	1806	struct uip_icmp_hdr {
ban4jp	3:a2715e9c7737	1807	uint8_t type, icode;
ban4jp	3:a2715e9c7737	1808	uint16_t icmpchksum;
ban4jp	3:a2715e9c7737	1809	#if !UIP_CONF_IPV6
ban4jp	3:a2715e9c7737	1810	uint16_t id, seqno;
ban4jp	3:a2715e9c7737	1811	#endif /* !UIP_CONF_IPV6 */
ban4jp	3:a2715e9c7737	1812	};
ban4jp	3:a2715e9c7737	1813
ban4jp	3:a2715e9c7737	1814
ban4jp	3:a2715e9c7737	1815	/* The UDP headers. */
ban4jp	3:a2715e9c7737	1816	struct uip_udp_hdr {
ban4jp	3:a2715e9c7737	1817	uint16_t srcport;
ban4jp	3:a2715e9c7737	1818	uint16_t destport;
ban4jp	3:a2715e9c7737	1819	uint16_t udplen;
ban4jp	3:a2715e9c7737	1820	uint16_t udpchksum;
ban4jp	3:a2715e9c7737	1821	};
ban4jp	3:a2715e9c7737	1822
ban4jp	0:685224d2f66d	1823
ban4jp	0:685224d2f66d	1824	/**
ban4jp	0:685224d2f66d	1825	* The buffer size available for user data in the \ref uip_buf buffer.
ban4jp	0:685224d2f66d	1826	*
ban4jp	0:685224d2f66d	1827	* This macro holds the available size for user data in the \ref
ban4jp	0:685224d2f66d	1828	* uip_buf buffer. The macro is intended to be used for checking
ban4jp	0:685224d2f66d	1829	* bounds of available user data.
ban4jp	0:685224d2f66d	1830	*
ban4jp	0:685224d2f66d	1831	* Example:
ban4jp	0:685224d2f66d	1832	\code
ban4jp	0:685224d2f66d	1833	snprintf(uip_appdata, UIP_APPDATA_SIZE, "%u\n", i);
ban4jp	0:685224d2f66d	1834	\endcode
ban4jp	0:685224d2f66d	1835	*
ban4jp	0:685224d2f66d	1836	* \hideinitializer
ban4jp	0:685224d2f66d	1837	*/
ban4jp	0:685224d2f66d	1838	#define UIP_APPDATA_SIZE (UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN)
ban4jp	3:a2715e9c7737	1839	#define UIP_APPDATA_PTR (void *)&uip_buf[UIP_LLH_LEN + UIP_TCPIP_HLEN]
ban4jp	0:685224d2f66d	1840
ban4jp	0:685224d2f66d	1841	#define UIP_PROTO_ICMP 1
ban4jp	0:685224d2f66d	1842	#define UIP_PROTO_TCP 6
ban4jp	0:685224d2f66d	1843	#define UIP_PROTO_UDP 17
ban4jp	0:685224d2f66d	1844	#define UIP_PROTO_ICMP6 58
ban4jp	0:685224d2f66d	1845
ban4jp	3:a2715e9c7737	1846
ban4jp	3:a2715e9c7737	1847	#if UIP_CONF_IPV6
ban4jp	3:a2715e9c7737	1848	/** @{ */
ban4jp	3:a2715e9c7737	1849	/** \brief extension headers types */
ban4jp	3:a2715e9c7737	1850	#define UIP_PROTO_HBHO 0
ban4jp	3:a2715e9c7737	1851	#define UIP_PROTO_DESTO 60
ban4jp	3:a2715e9c7737	1852	#define UIP_PROTO_ROUTING 43
ban4jp	3:a2715e9c7737	1853	#define UIP_PROTO_FRAG 44
ban4jp	3:a2715e9c7737	1854	#define UIP_PROTO_NONE 59
ban4jp	3:a2715e9c7737	1855	/** @} */
ban4jp	3:a2715e9c7737	1856
ban4jp	3:a2715e9c7737	1857	/** @{ */
ban4jp	3:a2715e9c7737	1858	/** \brief Destination and Hop By Hop extension headers option types */
ban4jp	3:a2715e9c7737	1859	#define UIP_EXT_HDR_OPT_PAD1 0
ban4jp	3:a2715e9c7737	1860	#define UIP_EXT_HDR_OPT_PADN 1
ban4jp	3:a2715e9c7737	1861	#define UIP_EXT_HDR_OPT_RPL 0x63
ban4jp	3:a2715e9c7737	1862
ban4jp	3:a2715e9c7737	1863	/** @} */
ban4jp	3:a2715e9c7737	1864
ban4jp	3:a2715e9c7737	1865	/** @{ */
ban4jp	3:a2715e9c7737	1866	/**
ban4jp	3:a2715e9c7737	1867	* \brief Bitmaps for extension header processing
ban4jp	3:a2715e9c7737	1868	*
ban4jp	3:a2715e9c7737	1869	* When processing extension headers, we should record somehow which one we
ban4jp	3:a2715e9c7737	1870	* see, because you cannot have twice the same header, except for destination
ban4jp	3:a2715e9c7737	1871	* We store all this in one uint8_t bitmap one bit for each header expected. The
ban4jp	3:a2715e9c7737	1872	* order in the bitmap is the order recommended in RFC2460
ban4jp	3:a2715e9c7737	1873	*/
ban4jp	3:a2715e9c7737	1874	#define UIP_EXT_HDR_BITMAP_HBHO 0x01
ban4jp	3:a2715e9c7737	1875	#define UIP_EXT_HDR_BITMAP_DESTO1 0x02
ban4jp	3:a2715e9c7737	1876	#define UIP_EXT_HDR_BITMAP_ROUTING 0x04
ban4jp	3:a2715e9c7737	1877	#define UIP_EXT_HDR_BITMAP_FRAG 0x08
ban4jp	3:a2715e9c7737	1878	#define UIP_EXT_HDR_BITMAP_AH 0x10
ban4jp	3:a2715e9c7737	1879	#define UIP_EXT_HDR_BITMAP_ESP 0x20
ban4jp	3:a2715e9c7737	1880	#define UIP_EXT_HDR_BITMAP_DESTO2 0x40
ban4jp	3:a2715e9c7737	1881	/** @} */
ban4jp	3:a2715e9c7737	1882
ban4jp	3:a2715e9c7737	1883
ban4jp	3:a2715e9c7737	1884	#endif /* UIP_CONF_IPV6 */
ban4jp	3:a2715e9c7737	1885
ban4jp	3:a2715e9c7737	1886
ban4jp	0:685224d2f66d	1887	/* Header sizes. */
ban4jp	0:685224d2f66d	1888	#if UIP_CONF_IPV6
ban4jp	0:685224d2f66d	1889	#define UIP_IPH_LEN 40
ban4jp	3:a2715e9c7737	1890	#define UIP_FRAGH_LEN 8
ban4jp	0:685224d2f66d	1891	#else /* UIP_CONF_IPV6 */
ban4jp	0:685224d2f66d	1892	#define UIP_IPH_LEN 20 /* Size of IP header */
ban4jp	0:685224d2f66d	1893	#endif /* UIP_CONF_IPV6 */
ban4jp	3:a2715e9c7737	1894
ban4jp	0:685224d2f66d	1895	#define UIP_UDPH_LEN 8 /* Size of UDP header */
ban4jp	0:685224d2f66d	1896	#define UIP_TCPH_LEN 20 /* Size of TCP header */
ban4jp	3:a2715e9c7737	1897	#ifdef UIP_IPH_LEN
ban4jp	3:a2715e9c7737	1898	#define UIP_ICMPH_LEN 4 /* Size of ICMP header */
ban4jp	3:a2715e9c7737	1899	#endif
ban4jp	0:685224d2f66d	1900	#define UIP_IPUDPH_LEN (UIP_UDPH_LEN + UIP_IPH_LEN) /* Size of IP +
ban4jp	3:a2715e9c7737	1901	* UDP
ban4jp	3:a2715e9c7737	1902	* header */
ban4jp	0:685224d2f66d	1903	#define UIP_IPTCPH_LEN (UIP_TCPH_LEN + UIP_IPH_LEN) /* Size of IP +
ban4jp	3:a2715e9c7737	1904	* TCP
ban4jp	3:a2715e9c7737	1905	* header */
ban4jp	0:685224d2f66d	1906	#define UIP_TCPIP_HLEN UIP_IPTCPH_LEN
ban4jp	3:a2715e9c7737	1907	#define UIP_IPICMPH_LEN (UIP_IPH_LEN + UIP_ICMPH_LEN) /* size of ICMP
ban4jp	3:a2715e9c7737	1908	+ IP header */
ban4jp	3:a2715e9c7737	1909	#define UIP_LLIPH_LEN (UIP_LLH_LEN + UIP_IPH_LEN) /* size of L2
ban4jp	3:a2715e9c7737	1910	+ IP header */
ban4jp	3:a2715e9c7737	1911	#if UIP_CONF_IPV6
ban4jp	3:a2715e9c7737	1912	/**
ban4jp	3:a2715e9c7737	1913	* The sums below are quite used in ND. When used for uip_buf, we
ban4jp	3:a2715e9c7737	1914	* include link layer length when used for uip_len, we do not, hence
ban4jp	3:a2715e9c7737	1915	* we need values with and without LLH_LEN we do not use capital
ban4jp	3:a2715e9c7737	1916	* letters as these values are variable
ban4jp	3:a2715e9c7737	1917	*/
ban4jp	3:a2715e9c7737	1918	#define uip_l2_l3_hdr_len (UIP_LLH_LEN + UIP_IPH_LEN + uip_ext_len)
ban4jp	3:a2715e9c7737	1919	#define uip_l2_l3_icmp_hdr_len (UIP_LLH_LEN + UIP_IPH_LEN + uip_ext_len + UIP_ICMPH_LEN)
ban4jp	3:a2715e9c7737	1920	#define uip_l3_hdr_len (UIP_IPH_LEN + uip_ext_len)
ban4jp	3:a2715e9c7737	1921	#define uip_l3_icmp_hdr_len (UIP_IPH_LEN + uip_ext_len + UIP_ICMPH_LEN)
ban4jp	3:a2715e9c7737	1922	#endif /UIP_CONF_IPV6/
ban4jp	0:685224d2f66d	1923
ban4jp	0:685224d2f66d	1924
ban4jp	0:685224d2f66d	1925	#if UIP_FIXEDADDR
ban4jp	3:a2715e9c7737	1926	CCIF extern const uip_ipaddr_t uip_hostaddr, uip_netmask, uip_draddr;
ban4jp	0:685224d2f66d	1927	#else /* UIP_FIXEDADDR */
ban4jp	3:a2715e9c7737	1928	CCIF extern uip_ipaddr_t uip_hostaddr, uip_netmask, uip_draddr;
ban4jp	0:685224d2f66d	1929	#endif /* UIP_FIXEDADDR */
ban4jp	3:a2715e9c7737	1930	CCIF extern const uip_ipaddr_t uip_broadcast_addr;
ban4jp	3:a2715e9c7737	1931	CCIF extern const uip_ipaddr_t uip_all_zeroes_addr;
ban4jp	3:a2715e9c7737	1932
ban4jp	3:a2715e9c7737	1933	#if UIP_FIXEDETHADDR
ban4jp	3:a2715e9c7737	1934	CCIF extern const uip_lladdr_t uip_lladdr;
ban4jp	3:a2715e9c7737	1935	#else
ban4jp	3:a2715e9c7737	1936	CCIF extern uip_lladdr_t uip_lladdr;
ban4jp	3:a2715e9c7737	1937	#endif
ban4jp	3:a2715e9c7737	1938
ban4jp	0:685224d2f66d	1939
ban4jp	0:685224d2f66d	1940
ban4jp	0:685224d2f66d	1941
ban4jp	3:a2715e9c7737	1942	#if UIP_CONF_IPV6
ban4jp	3:a2715e9c7737	1943	/** Length of the link local prefix */
ban4jp	3:a2715e9c7737	1944	#define UIP_LLPREF_LEN 10
ban4jp	3:a2715e9c7737	1945
ban4jp	0:685224d2f66d	1946	/**
ban4jp	3:a2715e9c7737	1947	* \brief Is IPv6 address a the unspecified address
ban4jp	3:a2715e9c7737	1948	* a is of type uip_ipaddr_t
ban4jp	3:a2715e9c7737	1949	*/
ban4jp	3:a2715e9c7737	1950	#define uip_is_addr_loopback(a) \
ban4jp	3:a2715e9c7737	1951	((((a)->u16[0]) == 0) && \
ban4jp	3:a2715e9c7737	1952	(((a)->u16[1]) == 0) && \
ban4jp	3:a2715e9c7737	1953	(((a)->u16[2]) == 0) && \
ban4jp	3:a2715e9c7737	1954	(((a)->u16[3]) == 0) && \
ban4jp	3:a2715e9c7737	1955	(((a)->u16[4]) == 0) && \
ban4jp	3:a2715e9c7737	1956	(((a)->u16[5]) == 0) && \
ban4jp	3:a2715e9c7737	1957	(((a)->u16[6]) == 0) && \
ban4jp	3:a2715e9c7737	1958	(((a)->u8[14]) == 0) && \
ban4jp	3:a2715e9c7737	1959	(((a)->u8[15]) == 0x01))
ban4jp	3:a2715e9c7737	1960	/**
ban4jp	3:a2715e9c7737	1961	* \brief Is IPv6 address a the unspecified address
ban4jp	3:a2715e9c7737	1962	* a is of type uip_ipaddr_t
ban4jp	3:a2715e9c7737	1963	*/
ban4jp	3:a2715e9c7737	1964	#define uip_is_addr_unspecified(a) \
ban4jp	3:a2715e9c7737	1965	((((a)->u16[0]) == 0) && \
ban4jp	3:a2715e9c7737	1966	(((a)->u16[1]) == 0) && \
ban4jp	3:a2715e9c7737	1967	(((a)->u16[2]) == 0) && \
ban4jp	3:a2715e9c7737	1968	(((a)->u16[3]) == 0) && \
ban4jp	3:a2715e9c7737	1969	(((a)->u16[4]) == 0) && \
ban4jp	3:a2715e9c7737	1970	(((a)->u16[5]) == 0) && \
ban4jp	3:a2715e9c7737	1971	(((a)->u16[6]) == 0) && \
ban4jp	3:a2715e9c7737	1972	(((a)->u16[7]) == 0))
ban4jp	3:a2715e9c7737	1973
ban4jp	3:a2715e9c7737	1974	/** \brief Is IPv6 address a the link local all-nodes multicast address */
ban4jp	3:a2715e9c7737	1975	#define uip_is_addr_linklocal_allnodes_mcast(a) \
ban4jp	3:a2715e9c7737	1976	((((a)->u8[0]) == 0xff) && \
ban4jp	3:a2715e9c7737	1977	(((a)->u8[1]) == 0x02) && \
ban4jp	3:a2715e9c7737	1978	(((a)->u16[1]) == 0) && \
ban4jp	3:a2715e9c7737	1979	(((a)->u16[2]) == 0) && \
ban4jp	3:a2715e9c7737	1980	(((a)->u16[3]) == 0) && \
ban4jp	3:a2715e9c7737	1981	(((a)->u16[4]) == 0) && \
ban4jp	3:a2715e9c7737	1982	(((a)->u16[5]) == 0) && \
ban4jp	3:a2715e9c7737	1983	(((a)->u16[6]) == 0) && \
ban4jp	3:a2715e9c7737	1984	(((a)->u8[14]) == 0) && \
ban4jp	3:a2715e9c7737	1985	(((a)->u8[15]) == 0x01))
ban4jp	3:a2715e9c7737	1986
ban4jp	3:a2715e9c7737	1987	/** \brief Is IPv6 address a the link local all-routers multicast address */
ban4jp	3:a2715e9c7737	1988	#define uip_is_addr_linklocal_allrouters_mcast(a) \
ban4jp	3:a2715e9c7737	1989	((((a)->u8[0]) == 0xff) && \
ban4jp	3:a2715e9c7737	1990	(((a)->u8[1]) == 0x02) && \
ban4jp	3:a2715e9c7737	1991	(((a)->u16[1]) == 0) && \
ban4jp	3:a2715e9c7737	1992	(((a)->u16[2]) == 0) && \
ban4jp	3:a2715e9c7737	1993	(((a)->u16[3]) == 0) && \
ban4jp	3:a2715e9c7737	1994	(((a)->u16[4]) == 0) && \
ban4jp	3:a2715e9c7737	1995	(((a)->u16[5]) == 0) && \
ban4jp	3:a2715e9c7737	1996	(((a)->u16[6]) == 0) && \
ban4jp	3:a2715e9c7737	1997	(((a)->u8[14]) == 0) && \
ban4jp	3:a2715e9c7737	1998	(((a)->u8[15]) == 0x02))
ban4jp	3:a2715e9c7737	1999
ban4jp	3:a2715e9c7737	2000	/**
ban4jp	3:a2715e9c7737	2001	* \brief Checks whether the address a is link local.
ban4jp	3:a2715e9c7737	2002	* a is of type uip_ipaddr_t
ban4jp	3:a2715e9c7737	2003	*/
ban4jp	3:a2715e9c7737	2004	#define uip_is_addr_linklocal(a) \
ban4jp	3:a2715e9c7737	2005	((a)->u8[0] == 0xfe && \
ban4jp	3:a2715e9c7737	2006	(a)->u8[1] == 0x80)
ban4jp	3:a2715e9c7737	2007
ban4jp	3:a2715e9c7737	2008	/** \brief set IP address a to unspecified */
ban4jp	3:a2715e9c7737	2009	#define uip_create_unspecified(a) uip_ip6addr(a, 0, 0, 0, 0, 0, 0, 0, 0)
ban4jp	3:a2715e9c7737	2010
ban4jp	3:a2715e9c7737	2011	/** \brief set IP address a to the link local all-nodes multicast address */
ban4jp	3:a2715e9c7737	2012	#define uip_create_linklocal_allnodes_mcast(a) uip_ip6addr(a, 0xff02, 0, 0, 0, 0, 0, 0, 0x0001)
ban4jp	3:a2715e9c7737	2013
ban4jp	3:a2715e9c7737	2014	/** \brief set IP address a to the link local all-routers multicast address */
ban4jp	3:a2715e9c7737	2015	#define uip_create_linklocal_allrouters_mcast(a) uip_ip6addr(a, 0xff02, 0, 0, 0, 0, 0, 0, 0x0002)
ban4jp	3:a2715e9c7737	2016	#define uip_create_linklocal_prefix(addr) do { \
ban4jp	3:a2715e9c7737	2017	(addr)->u16[0] = UIP_HTONS(0xfe80); \
ban4jp	3:a2715e9c7737	2018	(addr)->u16[1] = 0; \
ban4jp	3:a2715e9c7737	2019	(addr)->u16[2] = 0; \
ban4jp	3:a2715e9c7737	2020	(addr)->u16[3] = 0; \
ban4jp	3:a2715e9c7737	2021	} while(0)
ban4jp	3:a2715e9c7737	2022
ban4jp	3:a2715e9c7737	2023	/**
ban4jp	3:a2715e9c7737	2024	* \brief is addr (a) a solicited node multicast address, see RFC3513
ban4jp	3:a2715e9c7737	2025	* a is of type uip_ipaddr_t*
ban4jp	0:685224d2f66d	2026	*/
ban4jp	3:a2715e9c7737	2027	#define uip_is_addr_solicited_node(a) \
ban4jp	3:a2715e9c7737	2028	((((a)->u8[0]) == 0xFF) && \
ban4jp	3:a2715e9c7737	2029	(((a)->u8[1]) == 0x02) && \
ban4jp	3:a2715e9c7737	2030	(((a)->u16[1]) == 0x00) && \
ban4jp	3:a2715e9c7737	2031	(((a)->u16[2]) == 0x00) && \
ban4jp	3:a2715e9c7737	2032	(((a)->u16[3]) == 0x00) && \
ban4jp	3:a2715e9c7737	2033	(((a)->u16[4]) == 0x00) && \
ban4jp	3:a2715e9c7737	2034	(((a)->u8[10]) == 0x00) && \
ban4jp	3:a2715e9c7737	2035	(((a)->u8[11]) == 0x01) && \
ban4jp	3:a2715e9c7737	2036	(((a)->u8[12]) == 0xFF))
ban4jp	3:a2715e9c7737	2037
ban4jp	3:a2715e9c7737	2038	/**
ban4jp	3:a2715e9c7737	2039	* \briefput in b the solicited node address corresponding to address a
ban4jp	3:a2715e9c7737	2040	* both a and b are of type uip_ipaddr_t*
ban4jp	3:a2715e9c7737	2041	* */
ban4jp	3:a2715e9c7737	2042	#define uip_create_solicited_node(a, b) \
ban4jp	3:a2715e9c7737	2043	(((b)->u8[0]) = 0xFF); \
ban4jp	3:a2715e9c7737	2044	(((b)->u8[1]) = 0x02); \
ban4jp	3:a2715e9c7737	2045	(((b)->u16[1]) = 0); \
ban4jp	3:a2715e9c7737	2046	(((b)->u16[2]) = 0); \
ban4jp	3:a2715e9c7737	2047	(((b)->u16[3]) = 0); \
ban4jp	3:a2715e9c7737	2048	(((b)->u16[4]) = 0); \
ban4jp	3:a2715e9c7737	2049	(((b)->u8[10]) = 0); \
ban4jp	3:a2715e9c7737	2050	(((b)->u8[11]) = 0x01); \
ban4jp	3:a2715e9c7737	2051	(((b)->u8[12]) = 0xFF); \
ban4jp	3:a2715e9c7737	2052	(((b)->u8[13]) = ((a)->u8[13])); \
ban4jp	3:a2715e9c7737	2053	(((b)->u16[7]) = ((a)->u16[7]))
ban4jp	3:a2715e9c7737	2054
ban4jp	3:a2715e9c7737	2055	/**
ban4jp	3:a2715e9c7737	2056	* \brief is addr (a) a link local unicast address, see RFC3513
ban4jp	3:a2715e9c7737	2057	* i.e. is (a) on prefix FE80::/10
ban4jp	3:a2715e9c7737	2058	* a is of type uip_ipaddr_t*
ban4jp	3:a2715e9c7737	2059	*/
ban4jp	3:a2715e9c7737	2060	#define uip_is_addr_link_local(a) \
ban4jp	3:a2715e9c7737	2061	((((a)->u8[0]) == 0xFE) && \
ban4jp	3:a2715e9c7737	2062	(((a)->u8[1]) == 0x80))
ban4jp	3:a2715e9c7737	2063
ban4jp	3:a2715e9c7737	2064	/**
ban4jp	3:a2715e9c7737	2065	* \brief was addr (a) forged based on the mac address m
ban4jp	3:a2715e9c7737	2066	* a type is uip_ipaddr_t
ban4jp	3:a2715e9c7737	2067	* m type is uiplladdr_t
ban4jp	3:a2715e9c7737	2068	*/
ban4jp	3:a2715e9c7737	2069	#if UIP_CONF_LL_802154
ban4jp	3:a2715e9c7737	2070	#define uip_is_addr_mac_addr_based(a, m) \
ban4jp	3:a2715e9c7737	2071	((((a)->u8[8]) == (((m)->addr[0]) ^ 0x02)) && \
ban4jp	3:a2715e9c7737	2072	(((a)->u8[9]) == (m)->addr[1]) && \
ban4jp	3:a2715e9c7737	2073	(((a)->u8[10]) == (m)->addr[2]) && \
ban4jp	3:a2715e9c7737	2074	(((a)->u8[11]) == (m)->addr[3]) && \
ban4jp	3:a2715e9c7737	2075	(((a)->u8[12]) == (m)->addr[4]) && \
ban4jp	3:a2715e9c7737	2076	(((a)->u8[13]) == (m)->addr[5]) && \
ban4jp	3:a2715e9c7737	2077	(((a)->u8[14]) == (m)->addr[6]) && \
ban4jp	3:a2715e9c7737	2078	(((a)->u8[15]) == (m)->addr[7]))
ban4jp	3:a2715e9c7737	2079	#else
ban4jp	3:a2715e9c7737	2080
ban4jp	3:a2715e9c7737	2081	#define uip_is_addr_mac_addr_based(a, m) \
ban4jp	3:a2715e9c7737	2082	((((a)->u8[8]) == (((m)->addr[0]) \| 0x02)) && \
ban4jp	3:a2715e9c7737	2083	(((a)->u8[9]) == (m)->addr[1]) && \
ban4jp	3:a2715e9c7737	2084	(((a)->u8[10]) == (m)->addr[2]) && \
ban4jp	3:a2715e9c7737	2085	(((a)->u8[11]) == 0xff) && \
ban4jp	3:a2715e9c7737	2086	(((a)->u8[12]) == 0xfe) && \
ban4jp	3:a2715e9c7737	2087	(((a)->u8[13]) == (m)->addr[3]) && \
ban4jp	3:a2715e9c7737	2088	(((a)->u8[14]) == (m)->addr[4]) && \
ban4jp	3:a2715e9c7737	2089	(((a)->u8[15]) == (m)->addr[5]))
ban4jp	3:a2715e9c7737	2090
ban4jp	3:a2715e9c7737	2091	#endif /UIP_CONF_LL_802154/
ban4jp	3:a2715e9c7737	2092
ban4jp	3:a2715e9c7737	2093	/**
ban4jp	3:a2715e9c7737	2094	* \brief is address a multicast address, see RFC 3513
ban4jp	3:a2715e9c7737	2095	* a is of type uip_ipaddr_t*
ban4jp	3:a2715e9c7737	2096	* */
ban4jp	3:a2715e9c7737	2097	#define uip_is_addr_mcast(a) \
ban4jp	3:a2715e9c7737	2098	(((a)->u8[0]) == 0xFF)
ban4jp	3:a2715e9c7737	2099
ban4jp	3:a2715e9c7737	2100	/**
ban4jp	3:a2715e9c7737	2101	* \brief is group-id of multicast address a
ban4jp	3:a2715e9c7737	2102	* the all nodes group-id
ban4jp	3:a2715e9c7737	2103	*/
ban4jp	3:a2715e9c7737	2104	#define uip_is_mcast_group_id_all_nodes(a) \
ban4jp	3:a2715e9c7737	2105	((((a)->u16[1]) == 0) && \
ban4jp	3:a2715e9c7737	2106	(((a)->u16[2]) == 0) && \
ban4jp	3:a2715e9c7737	2107	(((a)->u16[3]) == 0) && \
ban4jp	3:a2715e9c7737	2108	(((a)->u16[4]) == 0) && \
ban4jp	3:a2715e9c7737	2109	(((a)->u16[5]) == 0) && \
ban4jp	3:a2715e9c7737	2110	(((a)->u16[6]) == 0) && \
ban4jp	3:a2715e9c7737	2111	(((a)->u8[14]) == 0) && \
ban4jp	3:a2715e9c7737	2112	(((a)->u8[15]) == 1))
ban4jp	3:a2715e9c7737	2113
ban4jp	3:a2715e9c7737	2114	/**
ban4jp	3:a2715e9c7737	2115	* \brief is group-id of multicast address a
ban4jp	3:a2715e9c7737	2116	* the all routers group-id
ban4jp	3:a2715e9c7737	2117	*/
ban4jp	3:a2715e9c7737	2118	#define uip_is_mcast_group_id_all_routers(a) \
ban4jp	3:a2715e9c7737	2119	((((a)->u16[1]) == 0) && \
ban4jp	3:a2715e9c7737	2120	(((a)->u16[2]) == 0) && \
ban4jp	3:a2715e9c7737	2121	(((a)->u16[3]) == 0) && \
ban4jp	3:a2715e9c7737	2122	(((a)->u16[4]) == 0) && \
ban4jp	3:a2715e9c7737	2123	(((a)->u16[5]) == 0) && \
ban4jp	3:a2715e9c7737	2124	(((a)->u16[6]) == 0) && \
ban4jp	3:a2715e9c7737	2125	(((a)->u8[14]) == 0) && \
ban4jp	3:a2715e9c7737	2126	(((a)->u8[15]) == 2))
ban4jp	3:a2715e9c7737	2127
ban4jp	3:a2715e9c7737	2128
ban4jp	3:a2715e9c7737	2129	/**
ban4jp	3:a2715e9c7737	2130	* \brief are last three bytes of both addresses equal?
ban4jp	3:a2715e9c7737	2131	* This is used to compare solicited node multicast addresses
ban4jp	3:a2715e9c7737	2132	*/
ban4jp	3:a2715e9c7737	2133	#define uip_are_solicited_bytes_equal(a, b) \
ban4jp	3:a2715e9c7737	2134	((((a)->u8[13]) == ((b)->u8[13])) && \
ban4jp	3:a2715e9c7737	2135	(((a)->u8[14]) == ((b)->u8[14])) && \
ban4jp	3:a2715e9c7737	2136	(((a)->u8[15]) == ((b)->u8[15])))
ban4jp	3:a2715e9c7737	2137
ban4jp	3:a2715e9c7737	2138	#endif /UIP_CONF_IPV6/
ban4jp	0:685224d2f66d	2139
ban4jp	0:685224d2f66d	2140	/**
ban4jp	0:685224d2f66d	2141	* Calculate the Internet checksum over a buffer.
ban4jp	0:685224d2f66d	2142	*
ban4jp	0:685224d2f66d	2143	* The Internet checksum is the one's complement of the one's
ban4jp	0:685224d2f66d	2144	* complement sum of all 16-bit words in the buffer.
ban4jp	0:685224d2f66d	2145	*
ban4jp	0:685224d2f66d	2146	* See RFC1071.
ban4jp	0:685224d2f66d	2147	*
ban4jp	0:685224d2f66d	2148	* \param buf A pointer to the buffer over which the checksum is to be
ban4jp	0:685224d2f66d	2149	* computed.
ban4jp	0:685224d2f66d	2150	*
ban4jp	0:685224d2f66d	2151	* \param len The length of the buffer over which the checksum is to
ban4jp	0:685224d2f66d	2152	* be computed.
ban4jp	0:685224d2f66d	2153	*
ban4jp	0:685224d2f66d	2154	* \return The Internet checksum of the buffer.
ban4jp	0:685224d2f66d	2155	*/
ban4jp	3:a2715e9c7737	2156	uint16_t uip_chksum(uint16_t *buf, uint16_t len);
ban4jp	0:685224d2f66d	2157
ban4jp	0:685224d2f66d	2158	/**
ban4jp	0:685224d2f66d	2159	* Calculate the IP header checksum of the packet header in uip_buf.
ban4jp	0:685224d2f66d	2160	*
ban4jp	0:685224d2f66d	2161	* The IP header checksum is the Internet checksum of the 20 bytes of
ban4jp	0:685224d2f66d	2162	* the IP header.
ban4jp	0:685224d2f66d	2163	*
ban4jp	0:685224d2f66d	2164	* \return The IP header checksum of the IP header in the uip_buf
ban4jp	0:685224d2f66d	2165	* buffer.
ban4jp	0:685224d2f66d	2166	*/
ban4jp	3:a2715e9c7737	2167	uint16_t uip_ipchksum(void);
ban4jp	0:685224d2f66d	2168
ban4jp	0:685224d2f66d	2169	/**
ban4jp	0:685224d2f66d	2170	* Calculate the TCP checksum of the packet in uip_buf and uip_appdata.
ban4jp	0:685224d2f66d	2171	*
ban4jp	0:685224d2f66d	2172	* The TCP checksum is the Internet checksum of data contents of the
ban4jp	0:685224d2f66d	2173	* TCP segment, and a pseudo-header as defined in RFC793.
ban4jp	0:685224d2f66d	2174	*
ban4jp	0:685224d2f66d	2175	* \return The TCP checksum of the TCP segment in uip_buf and pointed
ban4jp	0:685224d2f66d	2176	* to by uip_appdata.
ban4jp	0:685224d2f66d	2177	*/
ban4jp	3:a2715e9c7737	2178	uint16_t uip_tcpchksum(void);
ban4jp	0:685224d2f66d	2179
ban4jp	0:685224d2f66d	2180	/**
ban4jp	0:685224d2f66d	2181	* Calculate the UDP checksum of the packet in uip_buf and uip_appdata.
ban4jp	0:685224d2f66d	2182	*
ban4jp	0:685224d2f66d	2183	* The UDP checksum is the Internet checksum of data contents of the
ban4jp	0:685224d2f66d	2184	* UDP segment, and a pseudo-header as defined in RFC768.
ban4jp	0:685224d2f66d	2185	*
ban4jp	0:685224d2f66d	2186	* \return The UDP checksum of the UDP segment in uip_buf and pointed
ban4jp	0:685224d2f66d	2187	* to by uip_appdata.
ban4jp	0:685224d2f66d	2188	*/
ban4jp	3:a2715e9c7737	2189	uint16_t uip_udpchksum(void);
ban4jp	3:a2715e9c7737	2190
ban4jp	3:a2715e9c7737	2191	/**
ban4jp	3:a2715e9c7737	2192	* Calculate the ICMP checksum of the packet in uip_buf.
ban4jp	3:a2715e9c7737	2193	*
ban4jp	3:a2715e9c7737	2194	* \return The ICMP checksum of the ICMP packet in uip_buf
ban4jp	3:a2715e9c7737	2195	*/
ban4jp	3:a2715e9c7737	2196	uint16_t uip_icmp6chksum(void);
ban4jp	0:685224d2f66d	2197
ban4jp	0:685224d2f66d	2198
ban4jp	0:685224d2f66d	2199	#endif /* __UIP_H__ */
ban4jp	0:685224d2f66d	2200
ban4jp	0:685224d2f66d	2201
ban4jp	0:685224d2f66d	2202	/** @} */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	14 Jun 2014
Imports:	170
Forks:	0
Commits:	4
Dependents:	0
Dependencies:	2
Followers:	8

uip/uip.h@3:a2715e9c7737, 2014-06-30 (annotated)

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