| 1 |
606 |
jeremybenn |
|
| 2 |
|
|
/**
|
| 3 |
|
|
* \addtogroup uip
|
| 4 |
|
|
* @{
|
| 5 |
|
|
*/
|
| 6 |
|
|
|
| 7 |
|
|
/**
|
| 8 |
|
|
* \file
|
| 9 |
|
|
* Header file for the uIP TCP/IP stack.
|
| 10 |
|
|
* \author Adam Dunkels <adam@dunkels.com>
|
| 11 |
|
|
* \author Julien Abeille <jabeille@cisco.com> (IPv6 related code)
|
| 12 |
|
|
* \author Mathilde Durvy <mdurvy@cisco.com> (IPv6 related code)
|
| 13 |
|
|
*
|
| 14 |
|
|
* The uIP TCP/IP stack header file contains definitions for a number
|
| 15 |
|
|
* of C macros that are used by uIP programs as well as internal uIP
|
| 16 |
|
|
* structures, TCP/IP header structures and function declarations.
|
| 17 |
|
|
*
|
| 18 |
|
|
*/
|
| 19 |
|
|
|
| 20 |
|
|
/*
|
| 21 |
|
|
* Copyright (c) 2001-2003, Adam Dunkels.
|
| 22 |
|
|
* All rights reserved.
|
| 23 |
|
|
*
|
| 24 |
|
|
* Redistribution and use in source and binary forms, with or without
|
| 25 |
|
|
* modification, are permitted provided that the following conditions
|
| 26 |
|
|
* are met:
|
| 27 |
|
|
* 1. Redistributions of source code must retain the above copyright
|
| 28 |
|
|
* notice, this list of conditions and the following disclaimer.
|
| 29 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
| 30 |
|
|
* notice, this list of conditions and the following disclaimer in the
|
| 31 |
|
|
* documentation and/or other materials provided with the distribution.
|
| 32 |
|
|
* 3. The name of the author may not be used to endorse or promote
|
| 33 |
|
|
* products derived from this software without specific prior
|
| 34 |
|
|
* written permission.
|
| 35 |
|
|
*
|
| 36 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
|
| 37 |
|
|
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
| 38 |
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
| 39 |
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
| 40 |
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
| 41 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
|
| 42 |
|
|
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
| 43 |
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
| 44 |
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
| 45 |
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
| 46 |
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| 47 |
|
|
*
|
| 48 |
|
|
* This file is part of the uIP TCP/IP stack.
|
| 49 |
|
|
*
|
| 50 |
|
|
* $Id: uip.h 2 2011-07-17 20:13:17Z filepang@gmail.com $
|
| 51 |
|
|
*
|
| 52 |
|
|
*/
|
| 53 |
|
|
#ifndef __UIP_H__
|
| 54 |
|
|
#define __UIP_H__
|
| 55 |
|
|
|
| 56 |
|
|
#include "net/uipopt.h"
|
| 57 |
|
|
#include "uip-conf.h"
|
| 58 |
|
|
|
| 59 |
|
|
/**
|
| 60 |
|
|
* Representation of an IP address.
|
| 61 |
|
|
*
|
| 62 |
|
|
*/
|
| 63 |
|
|
#if UIP_CONF_IPV6 != 0
|
| 64 |
|
|
typedef union uip_ip6addr_t
|
| 65 |
|
|
{
|
| 66 |
|
|
u8_t u8[16]; /* Initializer, must come first!!! */
|
| 67 |
|
|
u16_t u16[8];
|
| 68 |
|
|
} uip_ip6addr_t;
|
| 69 |
|
|
|
| 70 |
|
|
typedef uip_ip6addr_t uip_ipaddr_t;
|
| 71 |
|
|
#else /* UIP_CONF_IPV6 */
|
| 72 |
|
|
typedef union uip_ip4addr_t
|
| 73 |
|
|
{
|
| 74 |
|
|
u8_t u8[4]; /* Initializer, must come first!!! */
|
| 75 |
|
|
u16_t u16[2];
|
| 76 |
|
|
} uip_ip4addr_t;
|
| 77 |
|
|
typedef uip_ip4addr_t uip_ipaddr_t;
|
| 78 |
|
|
#endif /* UIP_CONF_IPV6 */
|
| 79 |
|
|
|
| 80 |
|
|
/*---------------------------------------------------------------------------*/
|
| 81 |
|
|
|
| 82 |
|
|
/** \brief 16 bit 802.15.4 address */
|
| 83 |
|
|
struct uip_802154_shortaddr
|
| 84 |
|
|
{
|
| 85 |
|
|
u8_t addr[2];
|
| 86 |
|
|
};
|
| 87 |
|
|
|
| 88 |
|
|
/** \brief 64 bit 802.15.4 address */
|
| 89 |
|
|
struct uip_802154_longaddr
|
| 90 |
|
|
{
|
| 91 |
|
|
u8_t addr[8];
|
| 92 |
|
|
};
|
| 93 |
|
|
|
| 94 |
|
|
/** \brief 802.11 address */
|
| 95 |
|
|
struct uip_80211_addr
|
| 96 |
|
|
{
|
| 97 |
|
|
u8_t addr[6];
|
| 98 |
|
|
};
|
| 99 |
|
|
|
| 100 |
|
|
/** \brief 802.3 address */
|
| 101 |
|
|
#include "net/pack_struct_start.h"
|
| 102 |
|
|
struct uip_eth_addr
|
| 103 |
|
|
{
|
| 104 |
|
|
u8_t addr[6];
|
| 105 |
|
|
}
|
| 106 |
|
|
#include "net/pack_struct_end.h"
|
| 107 |
|
|
|
| 108 |
|
|
#ifdef UIP_CONF_LL_802154
|
| 109 |
|
|
|
| 110 |
|
|
/** \brief 802.15.4 address */
|
| 111 |
|
|
typedef struct uip_802154_longaddr uip_lladdr_t;
|
| 112 |
|
|
#define UIP_802154_SHORTADDR_LEN 2
|
| 113 |
|
|
#define UIP_802154_LONGADDR_LEN 8
|
| 114 |
|
|
#define UIP_LLADDR_LEN UIP_802154_LONGADDR_LEN
|
| 115 |
|
|
#else /*UIP_CONF_LL_802154*/
|
| 116 |
|
|
#ifdef UIP_CONF_LL_80211
|
| 117 |
|
|
/** \brief 802.11 address */
|
| 118 |
|
|
typedef struct uip_80211_addr uip_lladdr_t;
|
| 119 |
|
|
#define UIP_LLADDR_LEN 6
|
| 120 |
|
|
#else /*UIP_CONF_LL_80211*/
|
| 121 |
|
|
|
| 122 |
|
|
/** \brief Ethernet address */
|
| 123 |
|
|
typedef struct uip_eth_addr uip_lladdr_t;
|
| 124 |
|
|
|
| 125 |
|
|
#define UIP_LLADDR_LEN 6
|
| 126 |
|
|
#endif /*UIP_CONF_LL_80211*/
|
| 127 |
|
|
#endif /*UIP_CONF_LL_802154*/
|
| 128 |
|
|
|
| 129 |
|
|
//_RB_#include "net/tcpip.h"
|
| 130 |
|
|
|
| 131 |
|
|
/*---------------------------------------------------------------------------*/
|
| 132 |
|
|
|
| 133 |
|
|
/* First, the functions that should be called from the
|
| 134 |
|
|
* system. Initialization, the periodic timer, and incoming packets are
|
| 135 |
|
|
* handled by the following three functions.
|
| 136 |
|
|
*/
|
| 137 |
|
|
|
| 138 |
|
|
/**
|
| 139 |
|
|
* \defgroup uipconffunc uIP configuration functions
|
| 140 |
|
|
* @{
|
| 141 |
|
|
*
|
| 142 |
|
|
* The uIP configuration functions are used for setting run-time
|
| 143 |
|
|
* parameters in uIP such as IP addresses.
|
| 144 |
|
|
*/
|
| 145 |
|
|
|
| 146 |
|
|
/**
|
| 147 |
|
|
* Set the IP address of this host.
|
| 148 |
|
|
*
|
| 149 |
|
|
* The IP address is represented as a 4-byte array where the first
|
| 150 |
|
|
* octet of the IP address is put in the first member of the 4-byte
|
| 151 |
|
|
* array.
|
| 152 |
|
|
*
|
| 153 |
|
|
* Example:
|
| 154 |
|
|
\code
|
| 155 |
|
|
|
| 156 |
|
|
uip_ipaddr_t addr;
|
| 157 |
|
|
|
| 158 |
|
|
uip_ipaddr(&addr, 192,168,1,2);
|
| 159 |
|
|
uip_sethostaddr(&addr);
|
| 160 |
|
|
|
| 161 |
|
|
\endcode
|
| 162 |
|
|
* \param addr A pointer to an IP address of type uip_ipaddr_t;
|
| 163 |
|
|
*
|
| 164 |
|
|
* \sa uip_ipaddr()
|
| 165 |
|
|
*
|
| 166 |
|
|
* \hideinitializer
|
| 167 |
|
|
*/
|
| 168 |
|
|
#define uip_sethostaddr( addr ) uip_ipaddr_copy( &uip_hostaddr, (addr) )
|
| 169 |
|
|
|
| 170 |
|
|
/**
|
| 171 |
|
|
* Get the IP address of this host.
|
| 172 |
|
|
*
|
| 173 |
|
|
* The IP address is represented as a 4-byte array where the first
|
| 174 |
|
|
* octet of the IP address is put in the first member of the 4-byte
|
| 175 |
|
|
* array.
|
| 176 |
|
|
*
|
| 177 |
|
|
* Example:
|
| 178 |
|
|
\code
|
| 179 |
|
|
uip_ipaddr_t hostaddr;
|
| 180 |
|
|
|
| 181 |
|
|
uip_gethostaddr(&hostaddr);
|
| 182 |
|
|
\endcode
|
| 183 |
|
|
* \param addr A pointer to a uip_ipaddr_t variable that will be
|
| 184 |
|
|
* filled in with the currently configured IP address.
|
| 185 |
|
|
*
|
| 186 |
|
|
* \hideinitializer
|
| 187 |
|
|
*/
|
| 188 |
|
|
#define uip_gethostaddr( addr ) uip_ipaddr_copy( (addr), &uip_hostaddr )
|
| 189 |
|
|
|
| 190 |
|
|
/**
|
| 191 |
|
|
* Set the default router's IP address.
|
| 192 |
|
|
*
|
| 193 |
|
|
* \param addr A pointer to a uip_ipaddr_t variable containing the IP
|
| 194 |
|
|
* address of the default router.
|
| 195 |
|
|
*
|
| 196 |
|
|
* \sa uip_ipaddr()
|
| 197 |
|
|
*
|
| 198 |
|
|
* \hideinitializer
|
| 199 |
|
|
*/
|
| 200 |
|
|
#define uip_setdraddr( addr ) uip_ipaddr_copy( &uip_draddr, (addr) )
|
| 201 |
|
|
|
| 202 |
|
|
/**
|
| 203 |
|
|
* Set the netmask.
|
| 204 |
|
|
*
|
| 205 |
|
|
* \param addr A pointer to a uip_ipaddr_t variable containing the IP
|
| 206 |
|
|
* address of the netmask.
|
| 207 |
|
|
*
|
| 208 |
|
|
* \sa uip_ipaddr()
|
| 209 |
|
|
*
|
| 210 |
|
|
* \hideinitializer
|
| 211 |
|
|
*/
|
| 212 |
|
|
#define uip_setnetmask( addr ) uip_ipaddr_copy( &uip_netmask, (addr) )
|
| 213 |
|
|
|
| 214 |
|
|
/**
|
| 215 |
|
|
* Get the default router's IP address.
|
| 216 |
|
|
*
|
| 217 |
|
|
* \param addr A pointer to a uip_ipaddr_t variable that will be
|
| 218 |
|
|
* filled in with the IP address of the default router.
|
| 219 |
|
|
*
|
| 220 |
|
|
* \hideinitializer
|
| 221 |
|
|
*/
|
| 222 |
|
|
#define uip_getdraddr( addr ) uip_ipaddr_copy( (addr), &uip_draddr )
|
| 223 |
|
|
|
| 224 |
|
|
/**
|
| 225 |
|
|
* Get the netmask.
|
| 226 |
|
|
*
|
| 227 |
|
|
* \param addr A pointer to a uip_ipaddr_t variable that will be
|
| 228 |
|
|
* filled in with the value of the netmask.
|
| 229 |
|
|
*
|
| 230 |
|
|
* \hideinitializer
|
| 231 |
|
|
*/
|
| 232 |
|
|
#define uip_getnetmask( addr ) uip_ipaddr_copy( (addr), &uip_netmask )
|
| 233 |
|
|
|
| 234 |
|
|
/** @} */
|
| 235 |
|
|
|
| 236 |
|
|
/**
|
| 237 |
|
|
* \defgroup uipinit uIP initialization functions
|
| 238 |
|
|
* @{
|
| 239 |
|
|
*
|
| 240 |
|
|
* The uIP initialization functions are used for booting uIP.
|
| 241 |
|
|
*/
|
| 242 |
|
|
|
| 243 |
|
|
/**
|
| 244 |
|
|
* uIP initialization function.
|
| 245 |
|
|
*
|
| 246 |
|
|
* This function should be called at boot up to initilize the uIP
|
| 247 |
|
|
* TCP/IP stack.
|
| 248 |
|
|
*/
|
| 249 |
|
|
void uip_init( void );
|
| 250 |
|
|
|
| 251 |
|
|
/**
|
| 252 |
|
|
* uIP initialization function.
|
| 253 |
|
|
*
|
| 254 |
|
|
* This function may be used at boot time to set the initial ip_id.
|
| 255 |
|
|
*/
|
| 256 |
|
|
void uip_setipid( u16_t id );
|
| 257 |
|
|
|
| 258 |
|
|
/** @} */
|
| 259 |
|
|
|
| 260 |
|
|
/**
|
| 261 |
|
|
* \defgroup uipdevfunc uIP device driver functions
|
| 262 |
|
|
* @{
|
| 263 |
|
|
*
|
| 264 |
|
|
* These functions are used by a network device driver for interacting
|
| 265 |
|
|
* with uIP.
|
| 266 |
|
|
*/
|
| 267 |
|
|
|
| 268 |
|
|
/**
|
| 269 |
|
|
* Process an incoming packet.
|
| 270 |
|
|
*
|
| 271 |
|
|
* This function should be called when the device driver has received
|
| 272 |
|
|
* a packet from the network. The packet from the device driver must
|
| 273 |
|
|
* be present in the uip_buf buffer, and the length of the packet
|
| 274 |
|
|
* should be placed in the uip_len variable.
|
| 275 |
|
|
*
|
| 276 |
|
|
* When the function returns, there may be an outbound packet placed
|
| 277 |
|
|
* in the uip_buf packet buffer. If so, the uip_len variable is set to
|
| 278 |
|
|
* the length of the packet. If no packet is to be sent out, the
|
| 279 |
|
|
* uip_len variable is set to 0.
|
| 280 |
|
|
*
|
| 281 |
|
|
* The usual way of calling the function is presented by the source
|
| 282 |
|
|
* code below.
|
| 283 |
|
|
\code
|
| 284 |
|
|
uip_len = devicedriver_poll();
|
| 285 |
|
|
if(uip_len > 0) {
|
| 286 |
|
|
uip_input();
|
| 287 |
|
|
if(uip_len > 0) {
|
| 288 |
|
|
devicedriver_send();
|
| 289 |
|
|
}
|
| 290 |
|
|
}
|
| 291 |
|
|
\endcode
|
| 292 |
|
|
*
|
| 293 |
|
|
* \note If you are writing a uIP device driver that needs ARP
|
| 294 |
|
|
* (Address Resolution Protocol), e.g., when running uIP over
|
| 295 |
|
|
* Ethernet, you will need to call the uIP ARP code before calling
|
| 296 |
|
|
* this function:
|
| 297 |
|
|
\code
|
| 298 |
|
|
#define BUF ((struct uip_eth_hdr *)&uip_buf[0])
|
| 299 |
|
|
uip_len = ethernet_devicedrver_poll();
|
| 300 |
|
|
if(uip_len > 0) {
|
| 301 |
|
|
if(BUF->type == HTONS(UIP_ETHTYPE_IP)) {
|
| 302 |
|
|
uip_arp_ipin();
|
| 303 |
|
|
uip_input();
|
| 304 |
|
|
if(uip_len > 0) {
|
| 305 |
|
|
uip_arp_out();
|
| 306 |
|
|
ethernet_devicedriver_send();
|
| 307 |
|
|
}
|
| 308 |
|
|
} else if(BUF->type == HTONS(UIP_ETHTYPE_ARP)) {
|
| 309 |
|
|
uip_arp_arpin();
|
| 310 |
|
|
if(uip_len > 0) {
|
| 311 |
|
|
ethernet_devicedriver_send();
|
| 312 |
|
|
}
|
| 313 |
|
|
}
|
| 314 |
|
|
\endcode
|
| 315 |
|
|
*
|
| 316 |
|
|
* \hideinitializer
|
| 317 |
|
|
*/
|
| 318 |
|
|
#define uip_input() uip_process( UIP_DATA )
|
| 319 |
|
|
|
| 320 |
|
|
/**
|
| 321 |
|
|
* Periodic processing for a connection identified by its number.
|
| 322 |
|
|
*
|
| 323 |
|
|
* This function does the necessary periodic processing (timers,
|
| 324 |
|
|
* polling) for a uIP TCP conneciton, and should be called when the
|
| 325 |
|
|
* periodic uIP timer goes off. It should be called for every
|
| 326 |
|
|
* connection, regardless of whether they are open of closed.
|
| 327 |
|
|
*
|
| 328 |
|
|
* When the function returns, it may have an outbound packet waiting
|
| 329 |
|
|
* for service in the uIP packet buffer, and if so the uip_len
|
| 330 |
|
|
* variable is set to a value larger than zero. The device driver
|
| 331 |
|
|
* should be called to send out the packet.
|
| 332 |
|
|
*
|
| 333 |
|
|
* The usual way of calling the function is through a for() loop like
|
| 334 |
|
|
* this:
|
| 335 |
|
|
\code
|
| 336 |
|
|
for(i = 0; i < UIP_CONNS; ++i) {
|
| 337 |
|
|
uip_periodic(i);
|
| 338 |
|
|
if(uip_len > 0) {
|
| 339 |
|
|
devicedriver_send();
|
| 340 |
|
|
}
|
| 341 |
|
|
}
|
| 342 |
|
|
\endcode
|
| 343 |
|
|
*
|
| 344 |
|
|
* \note If you are writing a uIP device driver that needs ARP
|
| 345 |
|
|
* (Address Resolution Protocol), e.g., when running uIP over
|
| 346 |
|
|
* Ethernet, you will need to call the uip_arp_out() function before
|
| 347 |
|
|
* calling the device driver:
|
| 348 |
|
|
\code
|
| 349 |
|
|
for(i = 0; i < UIP_CONNS; ++i) {
|
| 350 |
|
|
uip_periodic(i);
|
| 351 |
|
|
if(uip_len > 0) {
|
| 352 |
|
|
uip_arp_out();
|
| 353 |
|
|
ethernet_devicedriver_send();
|
| 354 |
|
|
}
|
| 355 |
|
|
}
|
| 356 |
|
|
\endcode
|
| 357 |
|
|
*
|
| 358 |
|
|
* \param conn The number of the connection which is to be periodically polled.
|
| 359 |
|
|
*
|
| 360 |
|
|
* \hideinitializer
|
| 361 |
|
|
*/
|
| 362 |
|
|
#ifdef UIP_TCP
|
| 363 |
|
|
#define uip_periodic( conn ) \
|
| 364 |
|
|
do \
|
| 365 |
|
|
{ \
|
| 366 |
|
|
uip_conn = &uip_conns[conn]; \
|
| 367 |
|
|
uip_process( UIP_TIMER ); \
|
| 368 |
|
|
} while( 0 )
|
| 369 |
|
|
|
| 370 |
|
|
/**
|
| 371 |
|
|
*
|
| 372 |
|
|
*
|
| 373 |
|
|
*/
|
| 374 |
|
|
#define uip_conn_active( conn ) ( uip_conns[conn].tcpstateflags != UIP_CLOSED )
|
| 375 |
|
|
|
| 376 |
|
|
/**
|
| 377 |
|
|
* Perform periodic processing for a connection identified by a pointer
|
| 378 |
|
|
* to its structure.
|
| 379 |
|
|
*
|
| 380 |
|
|
* Same as uip_periodic() but takes a pointer to the actual uip_conn
|
| 381 |
|
|
* struct instead of an integer as its argument. This function can be
|
| 382 |
|
|
* used to force periodic processing of a specific connection.
|
| 383 |
|
|
*
|
| 384 |
|
|
* \param conn A pointer to the uip_conn struct for the connection to
|
| 385 |
|
|
* be processed.
|
| 386 |
|
|
*
|
| 387 |
|
|
* \hideinitializer
|
| 388 |
|
|
*/
|
| 389 |
|
|
#define uip_periodic_conn( conn ) \
|
| 390 |
|
|
do \
|
| 391 |
|
|
{ \
|
| 392 |
|
|
uip_conn = conn; \
|
| 393 |
|
|
uip_process( UIP_TIMER ); \
|
| 394 |
|
|
} while( 0 )
|
| 395 |
|
|
|
| 396 |
|
|
/**
|
| 397 |
|
|
* Request that a particular connection should be polled.
|
| 398 |
|
|
*
|
| 399 |
|
|
* Similar to uip_periodic_conn() but does not perform any timer
|
| 400 |
|
|
* processing. The application is polled for new data.
|
| 401 |
|
|
*
|
| 402 |
|
|
* \param conn A pointer to the uip_conn struct for the connection to
|
| 403 |
|
|
* be processed.
|
| 404 |
|
|
*
|
| 405 |
|
|
* \hideinitializer
|
| 406 |
|
|
*/
|
| 407 |
|
|
#define uip_poll_conn( conn ) \
|
| 408 |
|
|
do \
|
| 409 |
|
|
{ \
|
| 410 |
|
|
uip_conn = conn; \
|
| 411 |
|
|
uip_process( UIP_POLL_REQUEST ); \
|
| 412 |
|
|
} while( 0 )
|
| 413 |
|
|
#endif /* UIP_TCP */
|
| 414 |
|
|
|
| 415 |
|
|
#ifdef UIP_UDP
|
| 416 |
|
|
|
| 417 |
|
|
/**
|
| 418 |
|
|
* Periodic processing for a UDP connection identified by its number.
|
| 419 |
|
|
*
|
| 420 |
|
|
* This function is essentially the same as uip_periodic(), but for
|
| 421 |
|
|
* UDP connections. It is called in a similar fashion as the
|
| 422 |
|
|
* uip_periodic() function:
|
| 423 |
|
|
\code
|
| 424 |
|
|
for(i = 0; i < UIP_UDP_CONNS; i++) {
|
| 425 |
|
|
uip_udp_periodic(i);
|
| 426 |
|
|
if(uip_len > 0) {
|
| 427 |
|
|
devicedriver_send();
|
| 428 |
|
|
}
|
| 429 |
|
|
}
|
| 430 |
|
|
\endcode
|
| 431 |
|
|
*
|
| 432 |
|
|
* \note As for the uip_periodic() function, special care has to be
|
| 433 |
|
|
* taken when using uIP together with ARP and Ethernet:
|
| 434 |
|
|
\code
|
| 435 |
|
|
for(i = 0; i < UIP_UDP_CONNS; i++) {
|
| 436 |
|
|
uip_udp_periodic(i);
|
| 437 |
|
|
if(uip_len > 0) {
|
| 438 |
|
|
uip_arp_out();
|
| 439 |
|
|
ethernet_devicedriver_send();
|
| 440 |
|
|
}
|
| 441 |
|
|
}
|
| 442 |
|
|
\endcode
|
| 443 |
|
|
*
|
| 444 |
|
|
* \param conn The number of the UDP connection to be processed.
|
| 445 |
|
|
*
|
| 446 |
|
|
* \hideinitializer
|
| 447 |
|
|
*/
|
| 448 |
|
|
#define uip_udp_periodic( conn ) \
|
| 449 |
|
|
do \
|
| 450 |
|
|
{ \
|
| 451 |
|
|
uip_udp_conn = &uip_udp_conns[conn]; \
|
| 452 |
|
|
uip_process( UIP_UDP_TIMER ); \
|
| 453 |
|
|
} while( 0 )
|
| 454 |
|
|
|
| 455 |
|
|
/**
|
| 456 |
|
|
* Periodic processing for a UDP connection identified by a pointer to
|
| 457 |
|
|
* its structure.
|
| 458 |
|
|
*
|
| 459 |
|
|
* Same as uip_udp_periodic() but takes a pointer to the actual
|
| 460 |
|
|
* uip_conn struct instead of an integer as its argument. This
|
| 461 |
|
|
* function can be used to force periodic processing of a specific
|
| 462 |
|
|
* connection.
|
| 463 |
|
|
*
|
| 464 |
|
|
* \param conn A pointer to the uip_udp_conn struct for the connection
|
| 465 |
|
|
* to be processed.
|
| 466 |
|
|
*
|
| 467 |
|
|
* \hideinitializer
|
| 468 |
|
|
*/
|
| 469 |
|
|
#define uip_udp_periodic_conn( conn ) \
|
| 470 |
|
|
do \
|
| 471 |
|
|
{ \
|
| 472 |
|
|
uip_udp_conn = conn; \
|
| 473 |
|
|
uip_process( UIP_UDP_TIMER ); \
|
| 474 |
|
|
} while( 0 )
|
| 475 |
|
|
#endif /* UIP_UDP */
|
| 476 |
|
|
|
| 477 |
|
|
/** \brief Abandon the reassembly of the current packet */
|
| 478 |
|
|
void uip_reass_over( void );
|
| 479 |
|
|
|
| 480 |
|
|
/**
|
| 481 |
|
|
* The uIP packet buffer.
|
| 482 |
|
|
*
|
| 483 |
|
|
* The uip_buf array is used to hold incoming and outgoing
|
| 484 |
|
|
* packets. The device driver should place incoming data into this
|
| 485 |
|
|
* buffer. When sending data, the device driver should read the link
|
| 486 |
|
|
* level headers and the TCP/IP headers from this buffer. The size of
|
| 487 |
|
|
* the link level headers is configured by the UIP_LLH_LEN define.
|
| 488 |
|
|
*
|
| 489 |
|
|
* \note The application data need not be placed in this buffer, so
|
| 490 |
|
|
* the device driver must read it from the place pointed to by the
|
| 491 |
|
|
* uip_appdata pointer as illustrated by the following example:
|
| 492 |
|
|
\code
|
| 493 |
|
|
void
|
| 494 |
|
|
devicedriver_send(void)
|
| 495 |
|
|
{
|
| 496 |
|
|
hwsend(&uip_buf[0], UIP_LLH_LEN);
|
| 497 |
|
|
if(uip_len <= UIP_LLH_LEN + UIP_TCPIP_HLEN) {
|
| 498 |
|
|
hwsend(&uip_buf[UIP_LLH_LEN], uip_len - UIP_LLH_LEN);
|
| 499 |
|
|
} else {
|
| 500 |
|
|
hwsend(&uip_buf[UIP_LLH_LEN], UIP_TCPIP_HLEN);
|
| 501 |
|
|
hwsend(uip_appdata, uip_len - UIP_TCPIP_HLEN - UIP_LLH_LEN);
|
| 502 |
|
|
}
|
| 503 |
|
|
}
|
| 504 |
|
|
\endcode
|
| 505 |
|
|
*/
|
| 506 |
|
|
#ifndef UIP_CONF_EXTERNAL_BUFFER
|
| 507 |
|
|
CCIF extern u8_t uip_buf[UIP_BUFSIZE + 2];
|
| 508 |
|
|
#else
|
| 509 |
|
|
CCIF extern unsigned char *uip_buf;
|
| 510 |
|
|
#endif
|
| 511 |
|
|
|
| 512 |
|
|
/** @} */
|
| 513 |
|
|
|
| 514 |
|
|
/*---------------------------------------------------------------------------*/
|
| 515 |
|
|
|
| 516 |
|
|
/* Functions that are used by the uIP application program. Opening and
|
| 517 |
|
|
* closing connections, sending and receiving data, etc. is all
|
| 518 |
|
|
* handled by the functions below.
|
| 519 |
|
|
*/
|
| 520 |
|
|
|
| 521 |
|
|
/**
|
| 522 |
|
|
* \defgroup uipappfunc uIP application functions
|
| 523 |
|
|
* @{
|
| 524 |
|
|
*
|
| 525 |
|
|
* Functions used by an application running of top of uIP.
|
| 526 |
|
|
*/
|
| 527 |
|
|
|
| 528 |
|
|
/**
|
| 529 |
|
|
* Start listening to the specified port.
|
| 530 |
|
|
*
|
| 531 |
|
|
* \note Since this function expects the port number in network byte
|
| 532 |
|
|
* order, a conversion using HTONS() or htons() is necessary.
|
| 533 |
|
|
*
|
| 534 |
|
|
\code
|
| 535 |
|
|
uip_listen(HTONS(80));
|
| 536 |
|
|
\endcode
|
| 537 |
|
|
*
|
| 538 |
|
|
* \param port A 16-bit port number in network byte order.
|
| 539 |
|
|
*/
|
| 540 |
|
|
void uip_listen( u16_t port );
|
| 541 |
|
|
|
| 542 |
|
|
/**
|
| 543 |
|
|
* Stop listening to the specified port.
|
| 544 |
|
|
*
|
| 545 |
|
|
* \note Since this function expects the port number in network byte
|
| 546 |
|
|
* order, a conversion using HTONS() or htons() is necessary.
|
| 547 |
|
|
*
|
| 548 |
|
|
\code
|
| 549 |
|
|
uip_unlisten(HTONS(80));
|
| 550 |
|
|
\endcode
|
| 551 |
|
|
*
|
| 552 |
|
|
* \param port A 16-bit port number in network byte order.
|
| 553 |
|
|
*/
|
| 554 |
|
|
void uip_unlisten( u16_t port );
|
| 555 |
|
|
|
| 556 |
|
|
/**
|
| 557 |
|
|
* Connect to a remote host using TCP.
|
| 558 |
|
|
*
|
| 559 |
|
|
* This function is used to start a new connection to the specified
|
| 560 |
|
|
* port on the specified host. It allocates a new connection identifier,
|
| 561 |
|
|
* sets the connection to the SYN_SENT state and sets the
|
| 562 |
|
|
* retransmission timer to 0. This will cause a TCP SYN segment to be
|
| 563 |
|
|
* sent out the next time this connection is periodically processed,
|
| 564 |
|
|
* which usually is done within 0.5 seconds after the call to
|
| 565 |
|
|
* uip_connect().
|
| 566 |
|
|
*
|
| 567 |
|
|
* \note This function is available only if support for active open
|
| 568 |
|
|
* has been configured by defining UIP_ACTIVE_OPEN to 1 in uipopt.h.
|
| 569 |
|
|
*
|
| 570 |
|
|
* \note Since this function requires the port number to be in network
|
| 571 |
|
|
* byte order, a conversion using HTONS() or htons() is necessary.
|
| 572 |
|
|
*
|
| 573 |
|
|
\code
|
| 574 |
|
|
uip_ipaddr_t ipaddr;
|
| 575 |
|
|
|
| 576 |
|
|
uip_ipaddr(&ipaddr, 192,168,1,2);
|
| 577 |
|
|
uip_connect(&ipaddr, HTONS(80));
|
| 578 |
|
|
\endcode
|
| 579 |
|
|
*
|
| 580 |
|
|
* \param ripaddr The IP address of the remote host.
|
| 581 |
|
|
*
|
| 582 |
|
|
* \param port A 16-bit port number in network byte order.
|
| 583 |
|
|
*
|
| 584 |
|
|
* \return A pointer to the uIP connection identifier for the new connection,
|
| 585 |
|
|
* or NULL if no connection could be allocated.
|
| 586 |
|
|
*
|
| 587 |
|
|
*/
|
| 588 |
|
|
struct uip_conn *uip_connect( uip_ipaddr_t *ripaddr, u16_t port );
|
| 589 |
|
|
|
| 590 |
|
|
/**
|
| 591 |
|
|
* \internal
|
| 592 |
|
|
*
|
| 593 |
|
|
* Check if a connection has outstanding (i.e., unacknowledged) data.
|
| 594 |
|
|
*
|
| 595 |
|
|
* \param conn A pointer to the uip_conn structure for the connection.
|
| 596 |
|
|
*
|
| 597 |
|
|
* \hideinitializer
|
| 598 |
|
|
*/
|
| 599 |
|
|
#define uip_outstanding( conn ) ( (conn)->len )
|
| 600 |
|
|
|
| 601 |
|
|
/**
|
| 602 |
|
|
* Send data on the current connection.
|
| 603 |
|
|
*
|
| 604 |
|
|
* This function is used to send out a single segment of TCP
|
| 605 |
|
|
* data. Only applications that have been invoked by uIP for event
|
| 606 |
|
|
* processing can send data.
|
| 607 |
|
|
*
|
| 608 |
|
|
* The amount of data that actually is sent out after a call to this
|
| 609 |
|
|
* function is determined by the maximum amount of data TCP allows. uIP
|
| 610 |
|
|
* will automatically crop the data so that only the appropriate
|
| 611 |
|
|
* amount of data is sent. The function uip_mss() can be used to query
|
| 612 |
|
|
* uIP for the amount of data that actually will be sent.
|
| 613 |
|
|
*
|
| 614 |
|
|
* \note This function does not guarantee that the sent data will
|
| 615 |
|
|
* arrive at the destination. If the data is lost in the network, the
|
| 616 |
|
|
* application will be invoked with the uip_rexmit() event being
|
| 617 |
|
|
* set. The application will then have to resend the data using this
|
| 618 |
|
|
* function.
|
| 619 |
|
|
*
|
| 620 |
|
|
* \param data A pointer to the data which is to be sent.
|
| 621 |
|
|
*
|
| 622 |
|
|
* \param len The maximum amount of data bytes to be sent.
|
| 623 |
|
|
*
|
| 624 |
|
|
* \hideinitializer
|
| 625 |
|
|
*/
|
| 626 |
|
|
CCIF void uip_send( const void *data, int len );
|
| 627 |
|
|
|
| 628 |
|
|
/**
|
| 629 |
|
|
* The length of any incoming data that is currently available (if available)
|
| 630 |
|
|
* in the uip_appdata buffer.
|
| 631 |
|
|
*
|
| 632 |
|
|
* The test function uip_data() must first be used to check if there
|
| 633 |
|
|
* is any data available at all.
|
| 634 |
|
|
*
|
| 635 |
|
|
* \hideinitializer
|
| 636 |
|
|
*/
|
| 637 |
|
|
|
| 638 |
|
|
/*void uip_datalen(void);*/
|
| 639 |
|
|
#define uip_datalen() uip_len
|
| 640 |
|
|
|
| 641 |
|
|
/**
|
| 642 |
|
|
* The length of any out-of-band data (urgent data) that has arrived
|
| 643 |
|
|
* on the connection.
|
| 644 |
|
|
*
|
| 645 |
|
|
* \note The configuration parameter UIP_URGDATA must be set for this
|
| 646 |
|
|
* function to be enabled.
|
| 647 |
|
|
*
|
| 648 |
|
|
* \hideinitializer
|
| 649 |
|
|
*/
|
| 650 |
|
|
#define uip_urgdatalen() uip_urglen
|
| 651 |
|
|
|
| 652 |
|
|
/**
|
| 653 |
|
|
* Close the current connection.
|
| 654 |
|
|
*
|
| 655 |
|
|
* This function will close the current connection in a nice way.
|
| 656 |
|
|
*
|
| 657 |
|
|
* \hideinitializer
|
| 658 |
|
|
*/
|
| 659 |
|
|
#define uip_close() ( uip_flags = UIP_CLOSE )
|
| 660 |
|
|
|
| 661 |
|
|
/**
|
| 662 |
|
|
* Abort the current connection.
|
| 663 |
|
|
*
|
| 664 |
|
|
* This function will abort (reset) the current connection, and is
|
| 665 |
|
|
* usually used when an error has occurred that prevents using the
|
| 666 |
|
|
* uip_close() function.
|
| 667 |
|
|
*
|
| 668 |
|
|
* \hideinitializer
|
| 669 |
|
|
*/
|
| 670 |
|
|
#define uip_abort() ( uip_flags = UIP_ABORT )
|
| 671 |
|
|
|
| 672 |
|
|
/**
|
| 673 |
|
|
* Tell the sending host to stop sending data.
|
| 674 |
|
|
*
|
| 675 |
|
|
* This function will close our receiver's window so that we stop
|
| 676 |
|
|
* receiving data for the current connection.
|
| 677 |
|
|
*
|
| 678 |
|
|
* \hideinitializer
|
| 679 |
|
|
*/
|
| 680 |
|
|
#define uip_stop() ( uip_conn->tcpstateflags |= UIP_STOPPED )
|
| 681 |
|
|
|
| 682 |
|
|
/**
|
| 683 |
|
|
* Find out if the current connection has been previously stopped with
|
| 684 |
|
|
* uip_stop().
|
| 685 |
|
|
*
|
| 686 |
|
|
* \hideinitializer
|
| 687 |
|
|
*/
|
| 688 |
|
|
#define uip_stopped( conn ) ( (conn)->tcpstateflags & UIP_STOPPED )
|
| 689 |
|
|
|
| 690 |
|
|
/**
|
| 691 |
|
|
* Restart the current connection, if is has previously been stopped
|
| 692 |
|
|
* with uip_stop().
|
| 693 |
|
|
*
|
| 694 |
|
|
* This function will open the receiver's window again so that we
|
| 695 |
|
|
* start receiving data for the current connection.
|
| 696 |
|
|
*
|
| 697 |
|
|
* \hideinitializer
|
| 698 |
|
|
*/
|
| 699 |
|
|
#define uip_restart() \
|
| 700 |
|
|
do \
|
| 701 |
|
|
{ \
|
| 702 |
|
|
uip_flags |= UIP_NEWDATA; \
|
| 703 |
|
|
uip_conn->tcpstateflags &= ~UIP_STOPPED; \
|
| 704 |
|
|
} while( 0 )
|
| 705 |
|
|
|
| 706 |
|
|
/* uIP tests that can be made to determine in what state the current
|
| 707 |
|
|
connection is, and what the application function should do. */
|
| 708 |
|
|
|
| 709 |
|
|
/**
|
| 710 |
|
|
* Is the current connection a UDP connection?
|
| 711 |
|
|
*
|
| 712 |
|
|
* This function checks whether the current connection is a UDP connection.
|
| 713 |
|
|
*
|
| 714 |
|
|
* \hideinitializer
|
| 715 |
|
|
*
|
| 716 |
|
|
*/
|
| 717 |
|
|
#define uip_udpconnection() ( uip_conn == NULL )
|
| 718 |
|
|
|
| 719 |
|
|
/**
|
| 720 |
|
|
* Is new incoming data available?
|
| 721 |
|
|
*
|
| 722 |
|
|
* Will reduce to non-zero if there is new data for the application
|
| 723 |
|
|
* present at the uip_appdata pointer. The size of the data is
|
| 724 |
|
|
* available through the uip_len variable.
|
| 725 |
|
|
*
|
| 726 |
|
|
* \hideinitializer
|
| 727 |
|
|
*/
|
| 728 |
|
|
#define uip_newdata() ( uip_flags & UIP_NEWDATA )
|
| 729 |
|
|
|
| 730 |
|
|
/**
|
| 731 |
|
|
* Has previously sent data been acknowledged?
|
| 732 |
|
|
*
|
| 733 |
|
|
* Will reduce to non-zero if the previously sent data has been
|
| 734 |
|
|
* acknowledged by the remote host. This means that the application
|
| 735 |
|
|
* can send new data.
|
| 736 |
|
|
*
|
| 737 |
|
|
* \hideinitializer
|
| 738 |
|
|
*/
|
| 739 |
|
|
#define uip_acked() ( uip_flags & UIP_ACKDATA )
|
| 740 |
|
|
|
| 741 |
|
|
/**
|
| 742 |
|
|
* Has the connection just been connected?
|
| 743 |
|
|
*
|
| 744 |
|
|
* Reduces to non-zero if the current connection has been connected to
|
| 745 |
|
|
* a remote host. This will happen both if the connection has been
|
| 746 |
|
|
* actively opened (with uip_connect()) or passively opened (with
|
| 747 |
|
|
* uip_listen()).
|
| 748 |
|
|
*
|
| 749 |
|
|
* \hideinitializer
|
| 750 |
|
|
*/
|
| 751 |
|
|
#define uip_connected() ( uip_flags & UIP_CONNECTED )
|
| 752 |
|
|
|
| 753 |
|
|
/**
|
| 754 |
|
|
* Has the connection been closed by the other end?
|
| 755 |
|
|
*
|
| 756 |
|
|
* Is non-zero if the connection has been closed by the remote
|
| 757 |
|
|
* host. The application may then do the necessary clean-ups.
|
| 758 |
|
|
*
|
| 759 |
|
|
* \hideinitializer
|
| 760 |
|
|
*/
|
| 761 |
|
|
#define uip_closed() ( uip_flags & UIP_CLOSE )
|
| 762 |
|
|
|
| 763 |
|
|
/**
|
| 764 |
|
|
* Has the connection been aborted by the other end?
|
| 765 |
|
|
*
|
| 766 |
|
|
* Non-zero if the current connection has been aborted (reset) by the
|
| 767 |
|
|
* remote host.
|
| 768 |
|
|
*
|
| 769 |
|
|
* \hideinitializer
|
| 770 |
|
|
*/
|
| 771 |
|
|
#define uip_aborted() ( uip_flags & UIP_ABORT )
|
| 772 |
|
|
|
| 773 |
|
|
/**
|
| 774 |
|
|
* Has the connection timed out?
|
| 775 |
|
|
*
|
| 776 |
|
|
* Non-zero if the current connection has been aborted due to too many
|
| 777 |
|
|
* retransmissions.
|
| 778 |
|
|
*
|
| 779 |
|
|
* \hideinitializer
|
| 780 |
|
|
*/
|
| 781 |
|
|
#define uip_timedout() ( uip_flags & UIP_TIMEDOUT )
|
| 782 |
|
|
|
| 783 |
|
|
/**
|
| 784 |
|
|
* Do we need to retransmit previously data?
|
| 785 |
|
|
*
|
| 786 |
|
|
* Reduces to non-zero if the previously sent data has been lost in
|
| 787 |
|
|
* the network, and the application should retransmit it. The
|
| 788 |
|
|
* application should send the exact same data as it did the last
|
| 789 |
|
|
* time, using the uip_send() function.
|
| 790 |
|
|
*
|
| 791 |
|
|
* \hideinitializer
|
| 792 |
|
|
*/
|
| 793 |
|
|
#define uip_rexmit() ( uip_flags & UIP_REXMIT )
|
| 794 |
|
|
|
| 795 |
|
|
/**
|
| 796 |
|
|
* Is the connection being polled by uIP?
|
| 797 |
|
|
*
|
| 798 |
|
|
* Is non-zero if the reason the application is invoked is that the
|
| 799 |
|
|
* current connection has been idle for a while and should be
|
| 800 |
|
|
* polled.
|
| 801 |
|
|
*
|
| 802 |
|
|
* The polling event can be used for sending data without having to
|
| 803 |
|
|
* wait for the remote host to send data.
|
| 804 |
|
|
*
|
| 805 |
|
|
* \hideinitializer
|
| 806 |
|
|
*/
|
| 807 |
|
|
#define uip_poll() ( uip_flags & UIP_POLL )
|
| 808 |
|
|
|
| 809 |
|
|
/**
|
| 810 |
|
|
* Get the initial maximum segment size (MSS) of the current
|
| 811 |
|
|
* connection.
|
| 812 |
|
|
*
|
| 813 |
|
|
* \hideinitializer
|
| 814 |
|
|
*/
|
| 815 |
|
|
#define uip_initialmss() ( uip_conn->initialmss )
|
| 816 |
|
|
|
| 817 |
|
|
/**
|
| 818 |
|
|
* Get the current maximum segment size that can be sent on the current
|
| 819 |
|
|
* connection.
|
| 820 |
|
|
*
|
| 821 |
|
|
* The current maximum segment size that can be sent on the
|
| 822 |
|
|
* connection is computed from the receiver's window and the MSS of
|
| 823 |
|
|
* the connection (which also is available by calling
|
| 824 |
|
|
* uip_initialmss()).
|
| 825 |
|
|
*
|
| 826 |
|
|
* \hideinitializer
|
| 827 |
|
|
*/
|
| 828 |
|
|
#define uip_mss() ( uip_conn->mss )
|
| 829 |
|
|
/**
|
| 830 |
|
|
* Set up a new UDP connection.
|
| 831 |
|
|
*
|
| 832 |
|
|
* This function sets up a new UDP connection. The function will
|
| 833 |
|
|
* automatically allocate an unused local port for the new
|
| 834 |
|
|
* connection. However, another port can be chosen by using the
|
| 835 |
|
|
* uip_udp_bind() call, after the uip_udp_new() function has been
|
| 836 |
|
|
* called.
|
| 837 |
|
|
*
|
| 838 |
|
|
* Example:
|
| 839 |
|
|
\code
|
| 840 |
|
|
uip_ipaddr_t addr;
|
| 841 |
|
|
struct uip_udp_conn *c;
|
| 842 |
|
|
|
| 843 |
|
|
uip_ipaddr(&addr, 192,168,2,1);
|
| 844 |
|
|
c = uip_udp_new(&addr, HTONS(12345));
|
| 845 |
|
|
if(c != NULL) {
|
| 846 |
|
|
uip_udp_bind(c, HTONS(12344));
|
| 847 |
|
|
}
|
| 848 |
|
|
\endcode
|
| 849 |
|
|
* \param ripaddr The IP address of the remote host.
|
| 850 |
|
|
*
|
| 851 |
|
|
* \param rport The remote port number in network byte order.
|
| 852 |
|
|
*
|
| 853 |
|
|
* \return The uip_udp_conn structure for the new connection or NULL
|
| 854 |
|
|
* if no connection could be allocated.
|
| 855 |
|
|
*/
|
| 856 |
|
|
struct uip_udp_conn *uip_udp_new( const uip_ipaddr_t *ripaddr, u16_t rport );
|
| 857 |
|
|
|
| 858 |
|
|
/**
|
| 859 |
|
|
* Removed a UDP connection.
|
| 860 |
|
|
*
|
| 861 |
|
|
* \param conn A pointer to the uip_udp_conn structure for the connection.
|
| 862 |
|
|
*
|
| 863 |
|
|
* \hideinitializer
|
| 864 |
|
|
*/
|
| 865 |
|
|
#define uip_udp_remove( conn ) ( conn )->lport = 0
|
| 866 |
|
|
|
| 867 |
|
|
/**
|
| 868 |
|
|
* Bind a UDP connection to a local port.
|
| 869 |
|
|
*
|
| 870 |
|
|
* \param conn A pointer to the uip_udp_conn structure for the
|
| 871 |
|
|
* connection.
|
| 872 |
|
|
*
|
| 873 |
|
|
* \param port The local port number, in network byte order.
|
| 874 |
|
|
*
|
| 875 |
|
|
* \hideinitializer
|
| 876 |
|
|
*/
|
| 877 |
|
|
#define uip_udp_bind( conn, port ) ( conn )->lport = port
|
| 878 |
|
|
|
| 879 |
|
|
/**
|
| 880 |
|
|
* Send a UDP datagram of length len on the current connection.
|
| 881 |
|
|
*
|
| 882 |
|
|
* This function can only be called in response to a UDP event (poll
|
| 883 |
|
|
* or newdata). The data must be present in the uip_buf buffer, at the
|
| 884 |
|
|
* place pointed to by the uip_appdata pointer.
|
| 885 |
|
|
*
|
| 886 |
|
|
* \param len The length of the data in the uip_buf buffer.
|
| 887 |
|
|
*
|
| 888 |
|
|
* \hideinitializer
|
| 889 |
|
|
*/
|
| 890 |
|
|
#define uip_udp_send( len ) uip_send( ( char * ) uip_appdata, len )
|
| 891 |
|
|
|
| 892 |
|
|
/** @} */
|
| 893 |
|
|
|
| 894 |
|
|
/* uIP convenience and converting functions. */
|
| 895 |
|
|
|
| 896 |
|
|
/**
|
| 897 |
|
|
* \defgroup uipconvfunc uIP conversion functions
|
| 898 |
|
|
* @{
|
| 899 |
|
|
*
|
| 900 |
|
|
* These functions can be used for converting between different data
|
| 901 |
|
|
* formats used by uIP.
|
| 902 |
|
|
*/
|
| 903 |
|
|
|
| 904 |
|
|
/**
|
| 905 |
|
|
* Convert an IP address to four bytes separated by commas.
|
| 906 |
|
|
*
|
| 907 |
|
|
* Example:
|
| 908 |
|
|
\code
|
| 909 |
|
|
uip_ipaddr_t ipaddr;
|
| 910 |
|
|
printf("ipaddr=%d.%d.%d.%d\n", uip_ipaddr_to_quad(&ipaddr));
|
| 911 |
|
|
\endcode
|
| 912 |
|
|
*
|
| 913 |
|
|
* \param a A pointer to a uip_ipaddr_t.
|
| 914 |
|
|
* \hideinitializer
|
| 915 |
|
|
*/
|
| 916 |
|
|
#define uip_ipaddr_to_quad( a ) ( a )->u8[0], ( a )->u8[1], ( a )->u8[2], ( a )->u8[3]
|
| 917 |
|
|
|
| 918 |
|
|
/**
|
| 919 |
|
|
* Construct an IP address from four bytes.
|
| 920 |
|
|
*
|
| 921 |
|
|
* This function constructs an IP address of the type that uIP handles
|
| 922 |
|
|
* internally from four bytes. The function is handy for specifying IP
|
| 923 |
|
|
* addresses to use with e.g. the uip_connect() function.
|
| 924 |
|
|
*
|
| 925 |
|
|
* Example:
|
| 926 |
|
|
\code
|
| 927 |
|
|
uip_ipaddr_t ipaddr;
|
| 928 |
|
|
struct uip_conn *c;
|
| 929 |
|
|
|
| 930 |
|
|
uip_ipaddr(&ipaddr, 192,168,1,2);
|
| 931 |
|
|
c = uip_connect(&ipaddr, HTONS(80));
|
| 932 |
|
|
\endcode
|
| 933 |
|
|
*
|
| 934 |
|
|
* \param addr A pointer to a uip_ipaddr_t variable that will be
|
| 935 |
|
|
* filled in with the IP address.
|
| 936 |
|
|
*
|
| 937 |
|
|
* \param addr0 The first octet of the IP address.
|
| 938 |
|
|
* \param addr1 The second octet of the IP address.
|
| 939 |
|
|
* \param addr2 The third octet of the IP address.
|
| 940 |
|
|
* \param addr3 The forth octet of the IP address.
|
| 941 |
|
|
*
|
| 942 |
|
|
* \hideinitializer
|
| 943 |
|
|
*/
|
| 944 |
|
|
#define uip_ipaddr( addr, addr0, addr1, addr2, addr3 ) \
|
| 945 |
|
|
do \
|
| 946 |
|
|
{ \
|
| 947 |
|
|
( addr )->u8[0] = addr0; \
|
| 948 |
|
|
( addr )->u8[1] = addr1; \
|
| 949 |
|
|
( addr )->u8[2] = addr2; \
|
| 950 |
|
|
( addr )->u8[3] = addr3; \
|
| 951 |
|
|
} while( 0 )
|
| 952 |
|
|
|
| 953 |
|
|
/**
|
| 954 |
|
|
* Construct an IPv6 address from eight 16-bit words.
|
| 955 |
|
|
*
|
| 956 |
|
|
* This function constructs an IPv6 address.
|
| 957 |
|
|
*
|
| 958 |
|
|
* \hideinitializer
|
| 959 |
|
|
*/
|
| 960 |
|
|
#define uip_ip6addr( addr, addr0, addr1, addr2, addr3, addr4, addr5, addr6, addr7 ) \
|
| 961 |
|
|
do \
|
| 962 |
|
|
{ \
|
| 963 |
|
|
( addr )->u16[0] = HTONS( addr0 ); \
|
| 964 |
|
|
( addr )->u16[1] = HTONS( addr1 ); \
|
| 965 |
|
|
( addr )->u16[2] = HTONS( addr2 ); \
|
| 966 |
|
|
( addr )->u16[3] = HTONS( addr3 ); \
|
| 967 |
|
|
( addr )->u16[4] = HTONS( addr4 ); \
|
| 968 |
|
|
( addr )->u16[5] = HTONS( addr5 ); \
|
| 969 |
|
|
( addr )->u16[6] = HTONS( addr6 ); \
|
| 970 |
|
|
( addr )->u16[7] = HTONS( addr7 ); \
|
| 971 |
|
|
} while( 0 ) /**
|
| 972 |
|
|
* Construct an IPv6 address from eight 8-bit words.
|
| 973 |
|
|
*
|
| 974 |
|
|
* This function constructs an IPv6 address.
|
| 975 |
|
|
*
|
| 976 |
|
|
* \hideinitializer
|
| 977 |
|
|
*/
|
| 978 |
|
|
#define uip_ip6addr_u8 ( addr, addr0, addr1, addr2, addr3, addr4, addr5, addr6, addr7, addr8, addr9, addr10, addr11, addr12, addr13, addr14, \
|
| 979 |
|
|
addr15 ) do \
|
| 980 |
|
|
{\
|
| 981 |
|
|
( addr )->u8[0] = addr0; \
|
| 982 |
|
|
( addr )->u8[1] = addr1; \
|
| 983 |
|
|
( addr )->u8[2] = addr2; \
|
| 984 |
|
|
( addr )->u8[3] = addr3; \
|
| 985 |
|
|
( addr )->u8[4] = addr4; \
|
| 986 |
|
|
( addr )->u8[5] = addr5; \
|
| 987 |
|
|
( addr )->u8[6] = addr6; \
|
| 988 |
|
|
( addr )->u8[7] = addr7; \
|
| 989 |
|
|
( addr )->u8[8] = addr8; \
|
| 990 |
|
|
( addr )->u8[9] = addr9; \
|
| 991 |
|
|
( addr )->u8[10] = addr10; \
|
| 992 |
|
|
( addr )->u8[11] = addr11; \
|
| 993 |
|
|
( addr )->u8[12] = addr12; \
|
| 994 |
|
|
( addr )->u8[13] = addr13; \
|
| 995 |
|
|
( addr )->u8[14] = addr14; \
|
| 996 |
|
|
( addr )->u8[15] = addr15; \
|
| 997 |
|
|
} while( 0 )
|
| 998 |
|
|
/**
|
| 999 |
|
|
* Copy an IP address to another IP address.
|
| 1000 |
|
|
*
|
| 1001 |
|
|
* Copies an IP address from one place to another.
|
| 1002 |
|
|
*
|
| 1003 |
|
|
* Example:
|
| 1004 |
|
|
\code
|
| 1005 |
|
|
uip_ipaddr_t ipaddr1, ipaddr2;
|
| 1006 |
|
|
|
| 1007 |
|
|
uip_ipaddr(&ipaddr1, 192,16,1,2);
|
| 1008 |
|
|
uip_ipaddr_copy(&ipaddr2, &ipaddr1);
|
| 1009 |
|
|
\endcode
|
| 1010 |
|
|
*
|
| 1011 |
|
|
* \param dest The destination for the copy.
|
| 1012 |
|
|
* \param src The source from where to copy.
|
| 1013 |
|
|
*
|
| 1014 |
|
|
* \hideinitializer
|
| 1015 |
|
|
*/
|
| 1016 |
|
|
#ifndef uip_ipaddr_copy
|
| 1017 |
|
|
#define uip_ipaddr_copy( dest, src ) \
|
| 1018 |
|
|
do \
|
| 1019 |
|
|
{ \
|
| 1020 |
|
|
(dest)->u8[0] = (src)->u8[0]; \
|
| 1021 |
|
|
(dest)->u8[1] = (src)->u8[1]; \
|
| 1022 |
|
|
(dest)->u8[2] = (src)->u8[2]; \
|
| 1023 |
|
|
(dest)->u8[3] = (src)->u8[3]; \
|
| 1024 |
|
|
} while( 0 )
|
| 1025 |
|
|
#endif
|
| 1026 |
|
|
|
| 1027 |
|
|
/**
|
| 1028 |
|
|
* Compare two IP addresses
|
| 1029 |
|
|
*
|
| 1030 |
|
|
* Compares two IP addresses.
|
| 1031 |
|
|
*
|
| 1032 |
|
|
* Example:
|
| 1033 |
|
|
\code
|
| 1034 |
|
|
uip_ipaddr_t ipaddr1, ipaddr2;
|
| 1035 |
|
|
|
| 1036 |
|
|
uip_ipaddr(&ipaddr1, 192,16,1,2);
|
| 1037 |
|
|
if(uip_ipaddr_cmp(&ipaddr2, &ipaddr1)) {
|
| 1038 |
|
|
printf("They are the same");
|
| 1039 |
|
|
}
|
| 1040 |
|
|
\endcode
|
| 1041 |
|
|
*
|
| 1042 |
|
|
* \param addr1 The first IP address.
|
| 1043 |
|
|
* \param addr2 The second IP address.
|
| 1044 |
|
|
*
|
| 1045 |
|
|
* \hideinitializer
|
| 1046 |
|
|
*/
|
| 1047 |
|
|
#if !UIP_CONF_IPV6
|
| 1048 |
|
|
#define uip_ipaddr_cmp( addr1, addr2 ) ( (addr1)->u16[0] == (addr2)->u16[0] && (addr1)->u16[1] == (addr2)->u16[1] )
|
| 1049 |
|
|
#else /* !UIP_CONF_IPV6 */
|
| 1050 |
|
|
#define uip_ipaddr_cmp( addr1, addr2 ) ( memcmp(addr1, addr2, sizeof(uip_ip6addr_t)) == 0 )
|
| 1051 |
|
|
#endif /* !UIP_CONF_IPV6 */
|
| 1052 |
|
|
|
| 1053 |
|
|
/**
|
| 1054 |
|
|
* Compare two IP addresses with netmasks
|
| 1055 |
|
|
*
|
| 1056 |
|
|
* Compares two IP addresses with netmasks. The masks are used to mask
|
| 1057 |
|
|
* out the bits that are to be compared.
|
| 1058 |
|
|
*
|
| 1059 |
|
|
* Example:
|
| 1060 |
|
|
\code
|
| 1061 |
|
|
uip_ipaddr_t ipaddr1, ipaddr2, mask;
|
| 1062 |
|
|
|
| 1063 |
|
|
uip_ipaddr(&mask, 255,255,255,0);
|
| 1064 |
|
|
uip_ipaddr(&ipaddr1, 192,16,1,2);
|
| 1065 |
|
|
uip_ipaddr(&ipaddr2, 192,16,1,3);
|
| 1066 |
|
|
if(uip_ipaddr_maskcmp(&ipaddr1, &ipaddr2, &mask)) {
|
| 1067 |
|
|
printf("They are the same");
|
| 1068 |
|
|
}
|
| 1069 |
|
|
\endcode
|
| 1070 |
|
|
*
|
| 1071 |
|
|
* \param addr1 The first IP address.
|
| 1072 |
|
|
* \param addr2 The second IP address.
|
| 1073 |
|
|
* \param mask The netmask.
|
| 1074 |
|
|
*
|
| 1075 |
|
|
* \hideinitializer
|
| 1076 |
|
|
*/
|
| 1077 |
|
|
#if !UIP_CONF_IPV6
|
| 1078 |
|
|
#define uip_ipaddr_maskcmp( addr1, addr2, mask ) \
|
| 1079 |
|
|
( \
|
| 1080 |
|
|
(((( u16_t * ) addr1)[0] & (( u16_t * ) mask)[0]) == ((( u16_t * ) addr2)[0] & (( u16_t * ) mask)[0])) && \
|
| 1081 |
|
|
(((( u16_t * ) addr1)[1] & (( u16_t * ) mask)[1]) == ((( u16_t * ) addr2)[1] & (( u16_t * ) mask)[1])) \
|
| 1082 |
|
|
)
|
| 1083 |
|
|
#else
|
| 1084 |
|
|
#define uip_ipaddr_prefixcmp( addr1, addr2, length ) ( memcmp(addr1, addr2, length >> 3) == 0 )
|
| 1085 |
|
|
#endif
|
| 1086 |
|
|
|
| 1087 |
|
|
/**
|
| 1088 |
|
|
* Check if an address is a broadcast address for a network.
|
| 1089 |
|
|
*
|
| 1090 |
|
|
* Checks if an address is the broadcast address for a network. The
|
| 1091 |
|
|
* network is defined by an IP address that is on the network and the
|
| 1092 |
|
|
* network's netmask.
|
| 1093 |
|
|
*
|
| 1094 |
|
|
* \param addr The IP address.
|
| 1095 |
|
|
* \param netaddr The network's IP address.
|
| 1096 |
|
|
* \param netmask The network's netmask.
|
| 1097 |
|
|
*
|
| 1098 |
|
|
* \hideinitializer
|
| 1099 |
|
|
*/
|
| 1100 |
|
|
|
| 1101 |
|
|
/*#define uip_ipaddr_isbroadcast(addr, netaddr, netmask)
|
| 1102 |
|
|
((uip_ipaddr_t *)(addr)).u16 & ((uip_ipaddr_t *)(addr)).u16*/
|
| 1103 |
|
|
|
| 1104 |
|
|
/**
|
| 1105 |
|
|
* Mask out the network part of an IP address.
|
| 1106 |
|
|
*
|
| 1107 |
|
|
* Masks out the network part of an IP address, given the address and
|
| 1108 |
|
|
* the netmask.
|
| 1109 |
|
|
*
|
| 1110 |
|
|
* Example:
|
| 1111 |
|
|
\code
|
| 1112 |
|
|
uip_ipaddr_t ipaddr1, ipaddr2, netmask;
|
| 1113 |
|
|
|
| 1114 |
|
|
uip_ipaddr(&ipaddr1, 192,16,1,2);
|
| 1115 |
|
|
uip_ipaddr(&netmask, 255,255,255,0);
|
| 1116 |
|
|
uip_ipaddr_mask(&ipaddr2, &ipaddr1, &netmask);
|
| 1117 |
|
|
\endcode
|
| 1118 |
|
|
*
|
| 1119 |
|
|
* In the example above, the variable "ipaddr2" will contain the IP
|
| 1120 |
|
|
* address 192.168.1.0.
|
| 1121 |
|
|
*
|
| 1122 |
|
|
* \param dest Where the result is to be placed.
|
| 1123 |
|
|
* \param src The IP address.
|
| 1124 |
|
|
* \param mask The netmask.
|
| 1125 |
|
|
*
|
| 1126 |
|
|
* \hideinitializer
|
| 1127 |
|
|
*/
|
| 1128 |
|
|
#define uip_ipaddr_mask( dest, src, mask ) \
|
| 1129 |
|
|
do \
|
| 1130 |
|
|
{ \
|
| 1131 |
|
|
( ( u16_t * ) dest )[0] = ( ( u16_t * ) src )[0] & ( ( u16_t * ) mask )[0]; \
|
| 1132 |
|
|
( ( u16_t * ) dest )[1] = ( ( u16_t * ) src )[1] & ( ( u16_t * ) mask )[1]; \
|
| 1133 |
|
|
} while( 0 )
|
| 1134 |
|
|
|
| 1135 |
|
|
/**
|
| 1136 |
|
|
* Pick the first octet of an IP address.
|
| 1137 |
|
|
*
|
| 1138 |
|
|
* Picks out the first octet of an IP address.
|
| 1139 |
|
|
*
|
| 1140 |
|
|
* Example:
|
| 1141 |
|
|
\code
|
| 1142 |
|
|
uip_ipaddr_t ipaddr;
|
| 1143 |
|
|
u8_t octet;
|
| 1144 |
|
|
|
| 1145 |
|
|
uip_ipaddr(&ipaddr, 1,2,3,4);
|
| 1146 |
|
|
octet = uip_ipaddr1(&ipaddr);
|
| 1147 |
|
|
\endcode
|
| 1148 |
|
|
*
|
| 1149 |
|
|
* In the example above, the variable "octet" will contain the value 1.
|
| 1150 |
|
|
*
|
| 1151 |
|
|
* \hideinitializer
|
| 1152 |
|
|
*/
|
| 1153 |
|
|
#define uip_ipaddr1( addr ) ( (addr)->u8[0] )
|
| 1154 |
|
|
|
| 1155 |
|
|
/**
|
| 1156 |
|
|
* Pick the second octet of an IP address.
|
| 1157 |
|
|
*
|
| 1158 |
|
|
* Picks out the second octet of an IP address.
|
| 1159 |
|
|
*
|
| 1160 |
|
|
* Example:
|
| 1161 |
|
|
\code
|
| 1162 |
|
|
uip_ipaddr_t ipaddr;
|
| 1163 |
|
|
u8_t octet;
|
| 1164 |
|
|
|
| 1165 |
|
|
uip_ipaddr(&ipaddr, 1,2,3,4);
|
| 1166 |
|
|
octet = uip_ipaddr2(&ipaddr);
|
| 1167 |
|
|
\endcode
|
| 1168 |
|
|
*
|
| 1169 |
|
|
* In the example above, the variable "octet" will contain the value 2.
|
| 1170 |
|
|
*
|
| 1171 |
|
|
* \hideinitializer
|
| 1172 |
|
|
*/
|
| 1173 |
|
|
#define uip_ipaddr2( addr ) ( (addr)->u8[1] )
|
| 1174 |
|
|
|
| 1175 |
|
|
/**
|
| 1176 |
|
|
* Pick the third octet of an IP address.
|
| 1177 |
|
|
*
|
| 1178 |
|
|
* Picks out the third octet of an IP address.
|
| 1179 |
|
|
*
|
| 1180 |
|
|
* Example:
|
| 1181 |
|
|
\code
|
| 1182 |
|
|
uip_ipaddr_t ipaddr;
|
| 1183 |
|
|
u8_t octet;
|
| 1184 |
|
|
|
| 1185 |
|
|
uip_ipaddr(&ipaddr, 1,2,3,4);
|
| 1186 |
|
|
octet = uip_ipaddr3(&ipaddr);
|
| 1187 |
|
|
\endcode
|
| 1188 |
|
|
*
|
| 1189 |
|
|
* In the example above, the variable "octet" will contain the value 3.
|
| 1190 |
|
|
*
|
| 1191 |
|
|
* \hideinitializer
|
| 1192 |
|
|
*/
|
| 1193 |
|
|
#define uip_ipaddr3( addr ) ( (addr)->u8[2] )
|
| 1194 |
|
|
|
| 1195 |
|
|
/**
|
| 1196 |
|
|
* Pick the fourth octet of an IP address.
|
| 1197 |
|
|
*
|
| 1198 |
|
|
* Picks out the fourth octet of an IP address.
|
| 1199 |
|
|
*
|
| 1200 |
|
|
* Example:
|
| 1201 |
|
|
\code
|
| 1202 |
|
|
uip_ipaddr_t ipaddr;
|
| 1203 |
|
|
u8_t octet;
|
| 1204 |
|
|
|
| 1205 |
|
|
uip_ipaddr(&ipaddr, 1,2,3,4);
|
| 1206 |
|
|
octet = uip_ipaddr4(&ipaddr);
|
| 1207 |
|
|
\endcode
|
| 1208 |
|
|
*
|
| 1209 |
|
|
* In the example above, the variable "octet" will contain the value 4.
|
| 1210 |
|
|
*
|
| 1211 |
|
|
* \hideinitializer
|
| 1212 |
|
|
*/
|
| 1213 |
|
|
#define uip_ipaddr4( addr ) ( (addr)->u8[3] )
|
| 1214 |
|
|
/**
|
| 1215 |
|
|
* Convert 16-bit quantity from host byte order to network byte order.
|
| 1216 |
|
|
*
|
| 1217 |
|
|
* This macro is primarily used for converting constants from host
|
| 1218 |
|
|
* byte order to network byte order. For converting variables to
|
| 1219 |
|
|
* network byte order, use the htons() function instead.
|
| 1220 |
|
|
*
|
| 1221 |
|
|
* \hideinitializer
|
| 1222 |
|
|
*/
|
| 1223 |
|
|
#ifndef HTONS
|
| 1224 |
|
|
#if UIP_BYTE_ORDER == UIP_BIG_ENDIAN
|
| 1225 |
|
|
#define HTONS( n ) ( n )
|
| 1226 |
|
|
#define HTONL( n ) ( n )
|
| 1227 |
|
|
#else /* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */
|
| 1228 |
|
|
#define HTONS( n ) ( u16_t ) ( (((u16_t) (n)) << 8) | (((u16_t) (n)) >> 8) )
|
| 1229 |
|
|
#define HTONL( n ) ( ((u32_t) HTONS(n) << 16) | HTONS((u32_t) (n) >> 16) )
|
| 1230 |
|
|
#endif /* UIP_BYTE_ORDER == UIP_BIG_ENDIAN */
|
| 1231 |
|
|
#else
|
| 1232 |
|
|
#error "HTONS already defined!"
|
| 1233 |
|
|
#endif /* HTONS */
|
| 1234 |
|
|
|
| 1235 |
|
|
/**
|
| 1236 |
|
|
* Convert 16-bit quantity from host byte order to network byte order.
|
| 1237 |
|
|
*
|
| 1238 |
|
|
* This function is primarily used for converting variables from host
|
| 1239 |
|
|
* byte order to network byte order. For converting constants to
|
| 1240 |
|
|
* network byte order, use the HTONS() macro instead.
|
| 1241 |
|
|
*/
|
| 1242 |
|
|
#ifndef htons
|
| 1243 |
|
|
CCIF u16_t htons( u16_t val );
|
| 1244 |
|
|
#endif /* htons */
|
| 1245 |
|
|
|
| 1246 |
|
|
#ifndef ntohs
|
| 1247 |
|
|
#define ntohs htons
|
| 1248 |
|
|
#endif
|
| 1249 |
|
|
|
| 1250 |
|
|
#ifndef htonl
|
| 1251 |
|
|
CCIF u32_t htonl( u32_t val );
|
| 1252 |
|
|
#endif /* htonl */
|
| 1253 |
|
|
|
| 1254 |
|
|
#ifndef ntohl
|
| 1255 |
|
|
#define ntohl htonl
|
| 1256 |
|
|
#endif
|
| 1257 |
|
|
|
| 1258 |
|
|
/** @} */
|
| 1259 |
|
|
|
| 1260 |
|
|
/**
|
| 1261 |
|
|
* Pointer to the application data in the packet buffer.
|
| 1262 |
|
|
*
|
| 1263 |
|
|
* This pointer points to the application data when the application is
|
| 1264 |
|
|
* called. If the application wishes to send data, the application may
|
| 1265 |
|
|
* use this space to write the data into before calling uip_send().
|
| 1266 |
|
|
*/
|
| 1267 |
|
|
CCIF extern void *uip_appdata;
|
| 1268 |
|
|
|
| 1269 |
|
|
#if UIP_URGDATA > 0
|
| 1270 |
|
|
|
| 1271 |
|
|
/* u8_t *uip_urgdata:
|
| 1272 |
|
|
*
|
| 1273 |
|
|
* This pointer points to any urgent data that has been received. Only
|
| 1274 |
|
|
* present if compiled with support for urgent data (UIP_URGDATA).
|
| 1275 |
|
|
*/
|
| 1276 |
|
|
extern void *uip_urgdata;
|
| 1277 |
|
|
#endif /* UIP_URGDATA > 0 */
|
| 1278 |
|
|
|
| 1279 |
|
|
/**
|
| 1280 |
|
|
* \defgroup uipdrivervars Variables used in uIP device drivers
|
| 1281 |
|
|
* @{
|
| 1282 |
|
|
*
|
| 1283 |
|
|
* uIP has a few global variables that are used in device drivers for
|
| 1284 |
|
|
* uIP.
|
| 1285 |
|
|
*/
|
| 1286 |
|
|
|
| 1287 |
|
|
/**
|
| 1288 |
|
|
* The length of the packet in the uip_buf buffer.
|
| 1289 |
|
|
*
|
| 1290 |
|
|
* The global variable uip_len holds the length of the packet in the
|
| 1291 |
|
|
* uip_buf buffer.
|
| 1292 |
|
|
*
|
| 1293 |
|
|
* When the network device driver calls the uIP input function,
|
| 1294 |
|
|
* uip_len should be set to the length of the packet in the uip_buf
|
| 1295 |
|
|
* buffer.
|
| 1296 |
|
|
*
|
| 1297 |
|
|
* When sending packets, the device driver should use the contents of
|
| 1298 |
|
|
* the uip_len variable to determine the length of the outgoing
|
| 1299 |
|
|
* packet.
|
| 1300 |
|
|
*
|
| 1301 |
|
|
*/
|
| 1302 |
|
|
CCIF extern u16_t uip_len;
|
| 1303 |
|
|
|
| 1304 |
|
|
/**
|
| 1305 |
|
|
* The length of the extension headers
|
| 1306 |
|
|
*/
|
| 1307 |
|
|
extern u8_t uip_ext_len;
|
| 1308 |
|
|
|
| 1309 |
|
|
/** @} */
|
| 1310 |
|
|
#if UIP_URGDATA > 0
|
| 1311 |
|
|
extern u16_t uip_urglen, uip_surglen;
|
| 1312 |
|
|
#endif /* UIP_URGDATA > 0 */
|
| 1313 |
|
|
|
| 1314 |
|
|
/**
|
| 1315 |
|
|
* Representation of a uIP TCP connection.
|
| 1316 |
|
|
*
|
| 1317 |
|
|
* The uip_conn structure is used for identifying a connection. All
|
| 1318 |
|
|
* but one field in the structure are to be considered read-only by an
|
| 1319 |
|
|
* application. The only exception is the appstate field whose purpose
|
| 1320 |
|
|
* is to let the application store application-specific state (e.g.,
|
| 1321 |
|
|
* file pointers) for the connection. The type of this field is
|
| 1322 |
|
|
* configured in the "uipopt.h" header file.
|
| 1323 |
|
|
*/
|
| 1324 |
|
|
struct uip_conn
|
| 1325 |
|
|
{
|
| 1326 |
|
|
uip_ipaddr_t ripaddr; /**< The IP address of the remote host. */
|
| 1327 |
|
|
|
| 1328 |
|
|
u16_t lport; /**< The local TCP port, in network byte order. */
|
| 1329 |
|
|
u16_t rport; /**< The local remote TCP port, in network byte
|
| 1330 |
|
|
order. */
|
| 1331 |
|
|
|
| 1332 |
|
|
u8_t rcv_nxt[4]; /**< The sequence number that we expect to
|
| 1333 |
|
|
receive next. */
|
| 1334 |
|
|
u8_t snd_nxt[4]; /**< The sequence number that was last sent by
|
| 1335 |
|
|
us. */
|
| 1336 |
|
|
u16_t len; /**< Length of the data that was previously sent. */
|
| 1337 |
|
|
u16_t mss; /**< Current maximum segment size for the
|
| 1338 |
|
|
connection. */
|
| 1339 |
|
|
u16_t initialmss; /**< Initial maximum segment size for the
|
| 1340 |
|
|
connection. */
|
| 1341 |
|
|
u8_t sa; /**< Retransmission time-out calculation state
|
| 1342 |
|
|
variable. */
|
| 1343 |
|
|
u8_t sv; /**< Retransmission time-out calculation state
|
| 1344 |
|
|
variable. */
|
| 1345 |
|
|
u8_t rto; /**< Retransmission time-out. */
|
| 1346 |
|
|
u8_t tcpstateflags; /**< TCP state and flags. */
|
| 1347 |
|
|
u8_t timer; /**< The retransmission timer. */
|
| 1348 |
|
|
u8_t nrtx; /**< The number of retransmissions for the last
|
| 1349 |
|
|
segment sent. */
|
| 1350 |
|
|
|
| 1351 |
|
|
/** The application state. */
|
| 1352 |
|
|
uip_tcp_appstate_t appstate;
|
| 1353 |
|
|
};
|
| 1354 |
|
|
|
| 1355 |
|
|
/**
|
| 1356 |
|
|
* Pointer to the current TCP connection.
|
| 1357 |
|
|
*
|
| 1358 |
|
|
* The uip_conn pointer can be used to access the current TCP
|
| 1359 |
|
|
* connection.
|
| 1360 |
|
|
*/
|
| 1361 |
|
|
CCIF extern struct uip_conn *uip_conn;
|
| 1362 |
|
|
#ifdef UIP_TCP
|
| 1363 |
|
|
|
| 1364 |
|
|
/* The array containing all uIP connections. */
|
| 1365 |
|
|
CCIF extern struct uip_conn uip_conns[UIP_CONNS];
|
| 1366 |
|
|
#endif
|
| 1367 |
|
|
|
| 1368 |
|
|
/**
|
| 1369 |
|
|
* \addtogroup uiparch
|
| 1370 |
|
|
* @{
|
| 1371 |
|
|
*/
|
| 1372 |
|
|
|
| 1373 |
|
|
/**
|
| 1374 |
|
|
* 4-byte array used for the 32-bit sequence number calculations.
|
| 1375 |
|
|
*/
|
| 1376 |
|
|
extern u8_t uip_acc32[4];
|
| 1377 |
|
|
|
| 1378 |
|
|
/** @} */
|
| 1379 |
|
|
#if UIP_UDP == 1
|
| 1380 |
|
|
/**
|
| 1381 |
|
|
* Representation of a uIP UDP connection.
|
| 1382 |
|
|
*/
|
| 1383 |
|
|
struct uip_udp_conn
|
| 1384 |
|
|
{
|
| 1385 |
|
|
uip_ipaddr_t ripaddr; /**< The IP address of the remote peer. */
|
| 1386 |
|
|
u16_t lport; /**< The local port number in network byte order. */
|
| 1387 |
|
|
u16_t rport; /**< The remote port number in network byte order. */
|
| 1388 |
|
|
u8_t ttl; /**< Default time-to-live. */
|
| 1389 |
|
|
|
| 1390 |
|
|
/** The application state. */
|
| 1391 |
|
|
uip_udp_appstate_t appstate;
|
| 1392 |
|
|
};
|
| 1393 |
|
|
|
| 1394 |
|
|
/**
|
| 1395 |
|
|
* The current UDP connection.
|
| 1396 |
|
|
*/
|
| 1397 |
|
|
extern struct uip_udp_conn *uip_udp_conn;
|
| 1398 |
|
|
extern struct uip_udp_conn uip_udp_conns[UIP_UDP_CONNS];
|
| 1399 |
|
|
#endif /* UIP_UDP */
|
| 1400 |
|
|
|
| 1401 |
|
|
struct uip_router
|
| 1402 |
|
|
{
|
| 1403 |
|
|
int ( *activate ) ( void );
|
| 1404 |
|
|
int ( *deactivate ) ( void );
|
| 1405 |
|
|
uip_ipaddr_t * ( *lookup ) ( uip_ipaddr_t *destipaddr, uip_ipaddr_t *nexthop );
|
| 1406 |
|
|
};
|
| 1407 |
|
|
|
| 1408 |
|
|
#ifdef UIP_CONF_ROUTER
|
| 1409 |
|
|
extern const struct uip_router *uip_router;
|
| 1410 |
|
|
|
| 1411 |
|
|
/**
|
| 1412 |
|
|
* uIP routing driver registration function.
|
| 1413 |
|
|
*/
|
| 1414 |
|
|
void uip_router_register( const struct uip_router *router );
|
| 1415 |
|
|
#endif /*UIP_CONF_ROUTER*/
|
| 1416 |
|
|
|
| 1417 |
|
|
#ifdef UIP_CONF_ICMP6
|
| 1418 |
|
|
struct uip_icmp6_conn
|
| 1419 |
|
|
{
|
| 1420 |
|
|
uip_icmp6_appstate_t appstate;
|
| 1421 |
|
|
};
|
| 1422 |
|
|
extern struct uip_icmp6_conn uip_icmp6_conns;
|
| 1423 |
|
|
#endif /*UIP_CONF_ICMP6*/
|
| 1424 |
|
|
|
| 1425 |
|
|
/**
|
| 1426 |
|
|
* The uIP TCP/IP statistics.
|
| 1427 |
|
|
*
|
| 1428 |
|
|
* This is the variable in which the uIP TCP/IP statistics are gathered.
|
| 1429 |
|
|
*/
|
| 1430 |
|
|
#if UIP_STATISTICS == 1
|
| 1431 |
|
|
extern struct uip_stats uip_stat;
|
| 1432 |
|
|
#define UIP_STAT( s ) s
|
| 1433 |
|
|
#else
|
| 1434 |
|
|
#define UIP_STAT( s )
|
| 1435 |
|
|
#endif /* UIP_STATISTICS == 1 */
|
| 1436 |
|
|
|
| 1437 |
|
|
/**
|
| 1438 |
|
|
* The structure holding the TCP/IP statistics that are gathered if
|
| 1439 |
|
|
* UIP_STATISTICS is set to 1.
|
| 1440 |
|
|
*
|
| 1441 |
|
|
*/
|
| 1442 |
|
|
struct uip_stats
|
| 1443 |
|
|
{
|
| 1444 |
|
|
struct
|
| 1445 |
|
|
{
|
| 1446 |
|
|
uip_stats_t recv; /**< Number of received packets at the IP
|
| 1447 |
|
|
layer. */
|
| 1448 |
|
|
uip_stats_t sent; /**< Number of sent packets at the IP
|
| 1449 |
|
|
layer. */
|
| 1450 |
|
|
uip_stats_t forwarded; /**< Number of forwarded packets at the IP
|
| 1451 |
|
|
layer. */
|
| 1452 |
|
|
uip_stats_t drop; /**< Number of dropped packets at the IP
|
| 1453 |
|
|
layer. */
|
| 1454 |
|
|
uip_stats_t vhlerr; /**< Number of packets dropped due to wrong
|
| 1455 |
|
|
IP version or header length. */
|
| 1456 |
|
|
uip_stats_t hblenerr; /**< Number of packets dropped due to wrong
|
| 1457 |
|
|
IP length, high byte. */
|
| 1458 |
|
|
uip_stats_t lblenerr; /**< Number of packets dropped due to wrong
|
| 1459 |
|
|
IP length, low byte. */
|
| 1460 |
|
|
uip_stats_t fragerr; /**< Number of packets dropped since they
|
| 1461 |
|
|
were IP fragments. */
|
| 1462 |
|
|
uip_stats_t chkerr; /**< Number of packets dropped due to IP
|
| 1463 |
|
|
checksum errors. */
|
| 1464 |
|
|
uip_stats_t protoerr; /**< Number of packets dropped since they
|
| 1465 |
|
|
were neither ICMP, UDP nor TCP. */
|
| 1466 |
|
|
} ip; /**< IP statistics. */
|
| 1467 |
|
|
struct
|
| 1468 |
|
|
{
|
| 1469 |
|
|
uip_stats_t recv; /**< Number of received ICMP packets. */
|
| 1470 |
|
|
uip_stats_t sent; /**< Number of sent ICMP packets. */
|
| 1471 |
|
|
uip_stats_t drop; /**< Number of dropped ICMP packets. */
|
| 1472 |
|
|
uip_stats_t typeerr; /**< Number of ICMP packets with a wrong
|
| 1473 |
|
|
type. */
|
| 1474 |
|
|
uip_stats_t chkerr; /**< Number of ICMP packets with a bad
|
| 1475 |
|
|
checksum. */
|
| 1476 |
|
|
} icmp; /**< ICMP statistics. */
|
| 1477 |
|
|
#ifdef UIP_TCP
|
| 1478 |
|
|
struct
|
| 1479 |
|
|
{
|
| 1480 |
|
|
uip_stats_t recv; /**< Number of recived TCP segments. */
|
| 1481 |
|
|
uip_stats_t sent; /**< Number of sent TCP segments. */
|
| 1482 |
|
|
uip_stats_t drop; /**< Number of dropped TCP segments. */
|
| 1483 |
|
|
uip_stats_t chkerr; /**< Number of TCP segments with a bad
|
| 1484 |
|
|
checksum. */
|
| 1485 |
|
|
uip_stats_t ackerr; /**< Number of TCP segments with a bad ACK
|
| 1486 |
|
|
number. */
|
| 1487 |
|
|
uip_stats_t rst; /**< Number of recevied TCP RST (reset) segments. */
|
| 1488 |
|
|
uip_stats_t rexmit; /**< Number of retransmitted TCP segments. */
|
| 1489 |
|
|
uip_stats_t syndrop; /**< Number of dropped SYNs due to too few
|
| 1490 |
|
|
connections was avaliable. */
|
| 1491 |
|
|
uip_stats_t synrst; /**< Number of SYNs for closed ports,
|
| 1492 |
|
|
triggering a RST. */
|
| 1493 |
|
|
} tcp; /**< TCP statistics. */
|
| 1494 |
|
|
#endif
|
| 1495 |
|
|
#ifdef UIP_UDP
|
| 1496 |
|
|
struct
|
| 1497 |
|
|
{
|
| 1498 |
|
|
uip_stats_t drop; /**< Number of dropped UDP segments. */
|
| 1499 |
|
|
uip_stats_t recv; /**< Number of recived UDP segments. */
|
| 1500 |
|
|
uip_stats_t sent; /**< Number of sent UDP segments. */
|
| 1501 |
|
|
uip_stats_t chkerr; /**< Number of UDP segments with a bad
|
| 1502 |
|
|
checksum. */
|
| 1503 |
|
|
} udp; /**< UDP statistics. */
|
| 1504 |
|
|
#endif /* UIP_UDP */
|
| 1505 |
|
|
#if UIP_CONF_IPV6 != 0
|
| 1506 |
|
|
struct
|
| 1507 |
|
|
{
|
| 1508 |
|
|
uip_stats_t drop; /**< Number of dropped ND6 packets. */
|
| 1509 |
|
|
uip_stats_t recv; /**< Number of recived ND6 packets */
|
| 1510 |
|
|
uip_stats_t sent; /**< Number of sent ND6 packets */
|
| 1511 |
|
|
} nd6;
|
| 1512 |
|
|
#endif /*UIP_CONF_IPV6*/
|
| 1513 |
|
|
};
|
| 1514 |
|
|
|
| 1515 |
|
|
/*---------------------------------------------------------------------------*/
|
| 1516 |
|
|
|
| 1517 |
|
|
/* All the stuff below this point is internal to uIP and should not be
|
| 1518 |
|
|
* used directly by an application or by a device driver.
|
| 1519 |
|
|
*/
|
| 1520 |
|
|
|
| 1521 |
|
|
/*---------------------------------------------------------------------------*/
|
| 1522 |
|
|
|
| 1523 |
|
|
/* u8_t uip_flags:
|
| 1524 |
|
|
*
|
| 1525 |
|
|
* When the application is called, uip_flags will contain the flags
|
| 1526 |
|
|
* that are defined in this file. Please read below for more
|
| 1527 |
|
|
* information.
|
| 1528 |
|
|
*/
|
| 1529 |
|
|
CCIF extern u8_t uip_flags;
|
| 1530 |
|
|
|
| 1531 |
|
|
/* The following flags may be set in the global variable uip_flags
|
| 1532 |
|
|
before calling the application callback. The UIP_ACKDATA,
|
| 1533 |
|
|
UIP_NEWDATA, and UIP_CLOSE flags may both be set at the same time,
|
| 1534 |
|
|
whereas the others are mutually exclusive. Note that these flags
|
| 1535 |
|
|
should *NOT* be accessed directly, but only through the uIP
|
| 1536 |
|
|
functions/macros. */
|
| 1537 |
|
|
#define UIP_ACKDATA 1 /* Signifies that the outstanding data was
|
| 1538 |
|
|
acked and the application should send
|
| 1539 |
|
|
out new data instead of retransmitting
|
| 1540 |
|
|
the last data. */
|
| 1541 |
|
|
#define UIP_NEWDATA 2 /* Flags the fact that the peer has sent
|
| 1542 |
|
|
us new data. */
|
| 1543 |
|
|
#define UIP_REXMIT 4 /* Tells the application to retransmit the
|
| 1544 |
|
|
data that was last sent. */
|
| 1545 |
|
|
#define UIP_POLL 8 /* Used for polling the application, to
|
| 1546 |
|
|
check if the application has data that
|
| 1547 |
|
|
it wants to send. */
|
| 1548 |
|
|
#define UIP_CLOSE 16 /* The remote host has closed the
|
| 1549 |
|
|
connection, thus the connection has
|
| 1550 |
|
|
gone away. Or the application signals
|
| 1551 |
|
|
that it wants to close the
|
| 1552 |
|
|
connection. */
|
| 1553 |
|
|
#define UIP_ABORT 32 /* The remote host has aborted the
|
| 1554 |
|
|
connection, thus the connection has
|
| 1555 |
|
|
gone away. Or the application signals
|
| 1556 |
|
|
that it wants to abort the
|
| 1557 |
|
|
connection. */
|
| 1558 |
|
|
#define UIP_CONNECTED 64 /* We have got a connection from a remote
|
| 1559 |
|
|
host and have set up a new connection
|
| 1560 |
|
|
for it, or an active connection has
|
| 1561 |
|
|
been successfully established. */
|
| 1562 |
|
|
|
| 1563 |
|
|
#define UIP_TIMEDOUT 128 /* The connection has been aborted due to
|
| 1564 |
|
|
too many retransmissions. */
|
| 1565 |
|
|
|
| 1566 |
|
|
/**
|
| 1567 |
|
|
* \brief process the options within a hop by hop or destination option header
|
| 1568 |
|
|
* \retval 0: nothing to send,
|
| 1569 |
|
|
* \retval 1: drop pkt
|
| 1570 |
|
|
* \retval 2: ICMP error message to send
|
| 1571 |
|
|
*/
|
| 1572 |
|
|
|
| 1573 |
|
|
/*static u8_t
|
| 1574 |
|
|
uip_ext_hdr_options_process(); */
|
| 1575 |
|
|
|
| 1576 |
|
|
/* uip_process(flag):
|
| 1577 |
|
|
*
|
| 1578 |
|
|
* The actual uIP function which does all the work.
|
| 1579 |
|
|
*/
|
| 1580 |
|
|
void uip_process( u8_t flag );
|
| 1581 |
|
|
|
| 1582 |
|
|
/* The following flags are passed as an argument to the uip_process()
|
| 1583 |
|
|
function. They are used to distinguish between the two cases where
|
| 1584 |
|
|
uip_process() is called. It can be called either because we have
|
| 1585 |
|
|
incoming data that should be processed, or because the periodic
|
| 1586 |
|
|
timer has fired. These values are never used directly, but only in
|
| 1587 |
|
|
the macros defined in this file. */
|
| 1588 |
|
|
#define UIP_DATA 1 /* Tells uIP that there is incoming
|
| 1589 |
|
|
data in the uip_buf buffer. The
|
| 1590 |
|
|
length of the data is stored in the
|
| 1591 |
|
|
global variable uip_len. */
|
| 1592 |
|
|
#define UIP_TIMER 2 /* Tells uIP that the periodic timer
|
| 1593 |
|
|
has fired. */
|
| 1594 |
|
|
#define UIP_POLL_REQUEST 3 /* Tells uIP that a connection should
|
| 1595 |
|
|
be polled. */
|
| 1596 |
|
|
#define UIP_UDP_SEND_CONN 4 /* Tells uIP that a UDP datagram
|
| 1597 |
|
|
should be constructed in the
|
| 1598 |
|
|
uip_buf buffer. */
|
| 1599 |
|
|
#ifdef UIP_UDP
|
| 1600 |
|
|
#define UIP_UDP_TIMER 5
|
| 1601 |
|
|
#endif /* UIP_UDP */
|
| 1602 |
|
|
|
| 1603 |
|
|
/* The TCP states used in the uip_conn->tcpstateflags. */
|
| 1604 |
|
|
#define UIP_CLOSED 0
|
| 1605 |
|
|
#define UIP_SYN_RCVD 1
|
| 1606 |
|
|
#define UIP_SYN_SENT 2
|
| 1607 |
|
|
#define UIP_ESTABLISHED 3
|
| 1608 |
|
|
#define UIP_FIN_WAIT_1 4
|
| 1609 |
|
|
#define UIP_FIN_WAIT_2 5
|
| 1610 |
|
|
#define UIP_CLOSING 6
|
| 1611 |
|
|
#define UIP_TIME_WAIT 7
|
| 1612 |
|
|
#define UIP_LAST_ACK 8
|
| 1613 |
|
|
#define UIP_TS_MASK 15
|
| 1614 |
|
|
|
| 1615 |
|
|
#define UIP_STOPPED 16
|
| 1616 |
|
|
|
| 1617 |
|
|
/* The TCP and IP headers. */
|
| 1618 |
|
|
#include "net/pack_struct_start.h"
|
| 1619 |
|
|
struct uip_tcpip_hdr
|
| 1620 |
|
|
{
|
| 1621 |
|
|
#if UIP_CONF_IPV6 != 0
|
| 1622 |
|
|
/* IPv6 header. */
|
| 1623 |
|
|
u8_t vtc, tcflow;
|
| 1624 |
|
|
u16_t flow;
|
| 1625 |
|
|
u8_t len[2];
|
| 1626 |
|
|
u8_t proto, ttl;
|
| 1627 |
|
|
uip_ip6addr_t srcipaddr, destipaddr;
|
| 1628 |
|
|
#else /* UIP_CONF_IPV6 */
|
| 1629 |
|
|
/* IPv4 header. */
|
| 1630 |
|
|
u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
|
| 1631 |
|
|
u16_t ipchksum;
|
| 1632 |
|
|
uip_ipaddr_t srcipaddr, destipaddr;
|
| 1633 |
|
|
#endif /* UIP_CONF_IPV6 */
|
| 1634 |
|
|
|
| 1635 |
|
|
/* TCP header. */
|
| 1636 |
|
|
u16_t srcport, destport;
|
| 1637 |
|
|
u8_t seqno[4], ackno[4], tcpoffset, flags, wnd[2];
|
| 1638 |
|
|
u16_t tcpchksum;
|
| 1639 |
|
|
u8_t urgp[2];
|
| 1640 |
|
|
u8_t optdata[4];
|
| 1641 |
|
|
}
|
| 1642 |
|
|
#include "net/pack_struct_end.h"
|
| 1643 |
|
|
|
| 1644 |
|
|
/* The ICMP and IP headers. */
|
| 1645 |
|
|
#include "net/pack_struct_start.h"
|
| 1646 |
|
|
struct uip_icmpip_hdr
|
| 1647 |
|
|
{
|
| 1648 |
|
|
#if UIP_CONF_IPV6 != 0
|
| 1649 |
|
|
/* IPv6 header. */
|
| 1650 |
|
|
u8_t vtc, tcf;
|
| 1651 |
|
|
u16_t flow;
|
| 1652 |
|
|
u8_t len[2];
|
| 1653 |
|
|
u8_t proto, ttl;
|
| 1654 |
|
|
uip_ip6addr_t srcipaddr, destipaddr;
|
| 1655 |
|
|
#else /* UIP_CONF_IPV6 */
|
| 1656 |
|
|
/* IPv4 header. */
|
| 1657 |
|
|
u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
|
| 1658 |
|
|
u16_t ipchksum;
|
| 1659 |
|
|
uip_ipaddr_t srcipaddr, destipaddr;
|
| 1660 |
|
|
#endif /* UIP_CONF_IPV6 */
|
| 1661 |
|
|
|
| 1662 |
|
|
/* ICMP header. */
|
| 1663 |
|
|
u8_t type, icode;
|
| 1664 |
|
|
u16_t icmpchksum;
|
| 1665 |
|
|
#if !UIP_CONF_IPV6
|
| 1666 |
|
|
u16_t id, seqno;
|
| 1667 |
|
|
u8_t payload[1];
|
| 1668 |
|
|
#endif /* !UIP_CONF_IPV6 */
|
| 1669 |
|
|
}
|
| 1670 |
|
|
|
| 1671 |
|
|
#include "net/pack_struct_end.h"
|
| 1672 |
|
|
|
| 1673 |
|
|
/* The UDP and IP headers. */
|
| 1674 |
|
|
#include "net/pack_struct_start.h"
|
| 1675 |
|
|
struct uip_udpip_hdr
|
| 1676 |
|
|
{
|
| 1677 |
|
|
#if UIP_CONF_IPV6 != 0
|
| 1678 |
|
|
/* IPv6 header. */
|
| 1679 |
|
|
u8_t vtc, tcf;
|
| 1680 |
|
|
u16_t flow;
|
| 1681 |
|
|
u8_t len[2];
|
| 1682 |
|
|
u8_t proto, ttl;
|
| 1683 |
|
|
uip_ip6addr_t srcipaddr, destipaddr;
|
| 1684 |
|
|
#else /* UIP_CONF_IPV6 */
|
| 1685 |
|
|
/* IP header. */
|
| 1686 |
|
|
u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
|
| 1687 |
|
|
u16_t ipchksum;
|
| 1688 |
|
|
uip_ipaddr_t srcipaddr, destipaddr;
|
| 1689 |
|
|
#endif /* UIP_CONF_IPV6 */
|
| 1690 |
|
|
|
| 1691 |
|
|
/* UDP header. */
|
| 1692 |
|
|
u16_t srcport, destport;
|
| 1693 |
|
|
u16_t udplen;
|
| 1694 |
|
|
u16_t udpchksum;
|
| 1695 |
|
|
}
|
| 1696 |
|
|
|
| 1697 |
|
|
#include "net/pack_struct_end.h"
|
| 1698 |
|
|
|
| 1699 |
|
|
/*
|
| 1700 |
|
|
* In IPv6 the length of the L3 headers before the transport header is
|
| 1701 |
|
|
* not fixed, due to the possibility to include extension option headers
|
| 1702 |
|
|
* after the IP header. hence we split here L3 and L4 headers
|
| 1703 |
|
|
*/
|
| 1704 |
|
|
|
| 1705 |
|
|
/* The IP header */
|
| 1706 |
|
|
struct uip_ip_hdr
|
| 1707 |
|
|
{
|
| 1708 |
|
|
#if UIP_CONF_IPV6 != 0
|
| 1709 |
|
|
/* IPV6 header */
|
| 1710 |
|
|
u8_t vtc;
|
| 1711 |
|
|
u8_t tcflow;
|
| 1712 |
|
|
u16_t flow;
|
| 1713 |
|
|
u8_t len[2];
|
| 1714 |
|
|
u8_t proto, ttl;
|
| 1715 |
|
|
uip_ip6addr_t srcipaddr, destipaddr;
|
| 1716 |
|
|
#else /* UIP_CONF_IPV6 */
|
| 1717 |
|
|
/* IPV4 header */
|
| 1718 |
|
|
u8_t vhl, tos, len[2], ipid[2], ipoffset[2], ttl, proto;
|
| 1719 |
|
|
u16_t ipchksum;
|
| 1720 |
|
|
uip_ipaddr_t srcipaddr, destipaddr;
|
| 1721 |
|
|
#endif /* UIP_CONF_IPV6 */
|
| 1722 |
|
|
};
|
| 1723 |
|
|
|
| 1724 |
|
|
/*
|
| 1725 |
|
|
* IPv6 extension option headers: we are able to process
|
| 1726 |
|
|
* the 4 extension headers defined in RFC2460 (IPv6):
|
| 1727 |
|
|
* - Hop by hop option header, destination option header:
|
| 1728 |
|
|
* These two are not used by any core IPv6 protocol, hence
|
| 1729 |
|
|
* we just read them and go to the next. They convey options,
|
| 1730 |
|
|
* the options defined in RFC2460 are Pad1 and PadN, which do
|
| 1731 |
|
|
* some padding, and that we do not need to read (the length
|
| 1732 |
|
|
* field in the header is enough)
|
| 1733 |
|
|
* - Routing header: this one is most notably used by MIPv6,
|
| 1734 |
|
|
* which we do not implement, hence we just read it and go
|
| 1735 |
|
|
* to the next
|
| 1736 |
|
|
* - Fragmentation header: we read this header and are able to
|
| 1737 |
|
|
* reassemble packets
|
| 1738 |
|
|
*
|
| 1739 |
|
|
* We do not offer any means to send packets with extension headers
|
| 1740 |
|
|
*
|
| 1741 |
|
|
* We do not implement Authentication and ESP headers, which are
|
| 1742 |
|
|
* used in IPSec and defined in RFC4302,4303,4305,4385
|
| 1743 |
|
|
*/
|
| 1744 |
|
|
|
| 1745 |
|
|
/* common header part */
|
| 1746 |
|
|
struct uip_ext_hdr
|
| 1747 |
|
|
{
|
| 1748 |
|
|
u8_t next;
|
| 1749 |
|
|
u8_t len;
|
| 1750 |
|
|
};
|
| 1751 |
|
|
|
| 1752 |
|
|
/* Hop by Hop option header */
|
| 1753 |
|
|
struct uip_hbho_hdr
|
| 1754 |
|
|
{
|
| 1755 |
|
|
u8_t next;
|
| 1756 |
|
|
u8_t len;
|
| 1757 |
|
|
};
|
| 1758 |
|
|
|
| 1759 |
|
|
/* destination option header */
|
| 1760 |
|
|
struct uip_desto_hdr
|
| 1761 |
|
|
{
|
| 1762 |
|
|
u8_t next;
|
| 1763 |
|
|
u8_t len;
|
| 1764 |
|
|
};
|
| 1765 |
|
|
|
| 1766 |
|
|
/* We do not define structures for PAD1 and PADN options */
|
| 1767 |
|
|
|
| 1768 |
|
|
/*
|
| 1769 |
|
|
* routing header
|
| 1770 |
|
|
* the routing header as 4 common bytes, then routing header type
|
| 1771 |
|
|
* specific data there are several types of routing header. Type 0 was
|
| 1772 |
|
|
* deprecated as per RFC5095 most notable other type is 2, used in
|
| 1773 |
|
|
* RFC3775 (MIPv6) here we do not implement MIPv6, so we just need to
|
| 1774 |
|
|
* parse the 4 first bytes
|
| 1775 |
|
|
*/
|
| 1776 |
|
|
struct uip_routing_hdr
|
| 1777 |
|
|
{
|
| 1778 |
|
|
u8_t next;
|
| 1779 |
|
|
u8_t len;
|
| 1780 |
|
|
u8_t routing_type;
|
| 1781 |
|
|
u8_t seg_left;
|
| 1782 |
|
|
};
|
| 1783 |
|
|
|
| 1784 |
|
|
/* fragmentation header */
|
| 1785 |
|
|
struct uip_frag_hdr
|
| 1786 |
|
|
{
|
| 1787 |
|
|
u8_t next;
|
| 1788 |
|
|
u8_t res;
|
| 1789 |
|
|
u16_t offsetresmore;
|
| 1790 |
|
|
u32_t id;
|
| 1791 |
|
|
};
|
| 1792 |
|
|
|
| 1793 |
|
|
/*
|
| 1794 |
|
|
* an option within the destination or hop by hop option headers
|
| 1795 |
|
|
* it contains type an length, which is true for all options but PAD1
|
| 1796 |
|
|
*/
|
| 1797 |
|
|
struct uip_ext_hdr_opt
|
| 1798 |
|
|
{
|
| 1799 |
|
|
u8_t type;
|
| 1800 |
|
|
u8_t len;
|
| 1801 |
|
|
};
|
| 1802 |
|
|
|
| 1803 |
|
|
/* PADN option */
|
| 1804 |
|
|
struct uip_ext_hdr_opt_padn
|
| 1805 |
|
|
{
|
| 1806 |
|
|
u8_t opt_type;
|
| 1807 |
|
|
u8_t opt_len;
|
| 1808 |
|
|
};
|
| 1809 |
|
|
|
| 1810 |
|
|
/* TCP header */
|
| 1811 |
|
|
struct uip_tcp_hdr
|
| 1812 |
|
|
{
|
| 1813 |
|
|
u16_t srcport;
|
| 1814 |
|
|
u16_t destport;
|
| 1815 |
|
|
u8_t seqno[4];
|
| 1816 |
|
|
u8_t ackno[4];
|
| 1817 |
|
|
u8_t tcpoffset;
|
| 1818 |
|
|
u8_t flags;
|
| 1819 |
|
|
u8_t wnd[2];
|
| 1820 |
|
|
u16_t tcpchksum;
|
| 1821 |
|
|
u8_t urgp[2];
|
| 1822 |
|
|
u8_t optdata[4];
|
| 1823 |
|
|
};
|
| 1824 |
|
|
|
| 1825 |
|
|
/* The ICMP headers. */
|
| 1826 |
|
|
struct uip_icmp_hdr
|
| 1827 |
|
|
{
|
| 1828 |
|
|
u8_t type, icode;
|
| 1829 |
|
|
u16_t icmpchksum;
|
| 1830 |
|
|
#if !UIP_CONF_IPV6
|
| 1831 |
|
|
u16_t id, seqno;
|
| 1832 |
|
|
#endif /* !UIP_CONF_IPV6 */
|
| 1833 |
|
|
};
|
| 1834 |
|
|
|
| 1835 |
|
|
/* The UDP headers. */
|
| 1836 |
|
|
struct uip_udp_hdr
|
| 1837 |
|
|
{
|
| 1838 |
|
|
u16_t srcport;
|
| 1839 |
|
|
u16_t destport;
|
| 1840 |
|
|
u16_t udplen;
|
| 1841 |
|
|
u16_t udpchksum;
|
| 1842 |
|
|
};
|
| 1843 |
|
|
|
| 1844 |
|
|
/**
|
| 1845 |
|
|
* The buffer size available for user data in the \ref uip_buf buffer.
|
| 1846 |
|
|
*
|
| 1847 |
|
|
* This macro holds the available size for user data in the \ref
|
| 1848 |
|
|
* uip_buf buffer. The macro is intended to be used for checking
|
| 1849 |
|
|
* bounds of available user data.
|
| 1850 |
|
|
*
|
| 1851 |
|
|
* Example:
|
| 1852 |
|
|
\code
|
| 1853 |
|
|
snprintf(uip_appdata, UIP_APPDATA_SIZE, "%u\n", i);
|
| 1854 |
|
|
\endcode
|
| 1855 |
|
|
*
|
| 1856 |
|
|
* \hideinitializer
|
| 1857 |
|
|
*/
|
| 1858 |
|
|
#define UIP_APPDATA_SIZE ( UIP_BUFSIZE - UIP_LLH_LEN - UIP_TCPIP_HLEN )
|
| 1859 |
|
|
#define UIP_APPDATA_PTR ( void * ) &uip_buf[UIP_LLH_LEN + UIP_TCPIP_HLEN]
|
| 1860 |
|
|
|
| 1861 |
|
|
#define UIP_PROTO_ICMP 1
|
| 1862 |
|
|
#define UIP_PROTO_TCP 6
|
| 1863 |
|
|
#define UIP_PROTO_UDP 17
|
| 1864 |
|
|
#define UIP_PROTO_ICMP6 58
|
| 1865 |
|
|
|
| 1866 |
|
|
#if UIP_CONF_IPV6 != 0
|
| 1867 |
|
|
|
| 1868 |
|
|
/** @{ */
|
| 1869 |
|
|
|
| 1870 |
|
|
/** \brief extension headers types */
|
| 1871 |
|
|
#define UIP_PROTO_HBHO 0
|
| 1872 |
|
|
#define UIP_PROTO_DESTO 60
|
| 1873 |
|
|
#define UIP_PROTO_ROUTING 43
|
| 1874 |
|
|
#define UIP_PROTO_FRAG 44
|
| 1875 |
|
|
#define UIP_PROTO_NONE 59
|
| 1876 |
|
|
|
| 1877 |
|
|
/** @} */
|
| 1878 |
|
|
|
| 1879 |
|
|
/** @{ */
|
| 1880 |
|
|
|
| 1881 |
|
|
/** \brief Destination and Hop By Hop extension headers option types */
|
| 1882 |
|
|
#define UIP_EXT_HDR_OPT_PAD1 0
|
| 1883 |
|
|
#define UIP_EXT_HDR_OPT_PADN 1
|
| 1884 |
|
|
|
| 1885 |
|
|
/** @} */
|
| 1886 |
|
|
|
| 1887 |
|
|
/** @{ */
|
| 1888 |
|
|
|
| 1889 |
|
|
/**
|
| 1890 |
|
|
* \brief Bitmaps for extension header processing
|
| 1891 |
|
|
*
|
| 1892 |
|
|
* When processing extension headers, we should record somehow which one we
|
| 1893 |
|
|
* see, because you cannot have twice the same header, except for destination
|
| 1894 |
|
|
* We store all this in one u8_t bitmap one bit for each header expected. The
|
| 1895 |
|
|
* order in the bitmap is the order recommended in RFC2460
|
| 1896 |
|
|
*/
|
| 1897 |
|
|
#define UIP_EXT_HDR_BITMAP_HBHO 0x01
|
| 1898 |
|
|
#define UIP_EXT_HDR_BITMAP_DESTO1 0x02
|
| 1899 |
|
|
#define UIP_EXT_HDR_BITMAP_ROUTING 0x04
|
| 1900 |
|
|
#define UIP_EXT_HDR_BITMAP_FRAG 0x08
|
| 1901 |
|
|
#define UIP_EXT_HDR_BITMAP_AH 0x10
|
| 1902 |
|
|
#define UIP_EXT_HDR_BITMAP_ESP 0x20
|
| 1903 |
|
|
#define UIP_EXT_HDR_BITMAP_DESTO2 0x40
|
| 1904 |
|
|
|
| 1905 |
|
|
/** @} */
|
| 1906 |
|
|
#endif /* UIP_CONF_IPV6 */
|
| 1907 |
|
|
|
| 1908 |
|
|
/* Header sizes. */
|
| 1909 |
|
|
#if UIP_CONF_IPV6 != 0
|
| 1910 |
|
|
#define UIP_IPH_LEN 40
|
| 1911 |
|
|
#define UIP_FRAGH_LEN 8
|
| 1912 |
|
|
#else /* UIP_CONF_IPV6 */
|
| 1913 |
|
|
#define UIP_IPH_LEN 20 /* Size of IP header */
|
| 1914 |
|
|
#endif /* UIP_CONF_IPV6 */
|
| 1915 |
|
|
|
| 1916 |
|
|
#define UIP_UDPH_LEN 8 /* Size of UDP header */
|
| 1917 |
|
|
#define UIP_TCPH_LEN 20 /* Size of TCP header */
|
| 1918 |
|
|
#ifdef UIP_IPH_LEN
|
| 1919 |
|
|
#define UIP_ICMPH_LEN 4 /* Size of ICMP header */
|
| 1920 |
|
|
#endif
|
| 1921 |
|
|
#define UIP_IPUDPH_LEN ( UIP_UDPH_LEN + UIP_IPH_LEN ) /* Size of IP +
|
| 1922 |
|
|
* UDP
|
| 1923 |
|
|
* header */
|
| 1924 |
|
|
#define UIP_IPTCPH_LEN ( UIP_TCPH_LEN + UIP_IPH_LEN ) /* Size of IP +
|
| 1925 |
|
|
* TCP
|
| 1926 |
|
|
* header */
|
| 1927 |
|
|
#define UIP_TCPIP_HLEN UIP_IPTCPH_LEN
|
| 1928 |
|
|
#define UIP_IPICMPH_LEN ( UIP_IPH_LEN + UIP_ICMPH_LEN ) /* size of ICMP
|
| 1929 |
|
|
+ IP header */
|
| 1930 |
|
|
#define UIP_LLIPH_LEN ( UIP_LLH_LEN + UIP_IPH_LEN ) /* size of L2
|
| 1931 |
|
|
+ IP header */
|
| 1932 |
|
|
#if UIP_CONF_IPV6 != 0
|
| 1933 |
|
|
|
| 1934 |
|
|
/**
|
| 1935 |
|
|
* The sums below are quite used in ND. When used for uip_buf, we
|
| 1936 |
|
|
* include link layer length when used for uip_len, we do not, hence
|
| 1937 |
|
|
* we need values with and without LLH_LEN we do not use capital
|
| 1938 |
|
|
* letters as these values are variable
|
| 1939 |
|
|
*/
|
| 1940 |
|
|
#define uip_l2_l3_hdr_len ( UIP_LLH_LEN + UIP_IPH_LEN + uip_ext_len )
|
| 1941 |
|
|
#define uip_l2_l3_icmp_hdr_len ( UIP_LLH_LEN + UIP_IPH_LEN + uip_ext_len + UIP_ICMPH_LEN )
|
| 1942 |
|
|
#define uip_l3_hdr_len ( UIP_IPH_LEN + uip_ext_len )
|
| 1943 |
|
|
#define uip_l3_icmp_hdr_len ( UIP_IPH_LEN + uip_ext_len + UIP_ICMPH_LEN )
|
| 1944 |
|
|
#endif /*UIP_CONF_IPV6*/
|
| 1945 |
|
|
|
| 1946 |
|
|
#ifdef UIP_FIXEDADDR
|
| 1947 |
|
|
CCIF extern const uip_ipaddr_t uip_hostaddr, uip_netmask, uip_draddr;
|
| 1948 |
|
|
#else /* UIP_FIXEDADDR */
|
| 1949 |
|
|
CCIF extern uip_ipaddr_t uip_hostaddr, uip_netmask, uip_draddr;
|
| 1950 |
|
|
#endif /* UIP_FIXEDADDR */
|
| 1951 |
|
|
CCIF extern const uip_ipaddr_t uip_broadcast_addr;
|
| 1952 |
|
|
CCIF extern const uip_ipaddr_t uip_all_zeroes_addr;
|
| 1953 |
|
|
|
| 1954 |
|
|
#ifdef UIP_FIXEDETHADDR
|
| 1955 |
|
|
CCIF extern const uip_lladdr_t uip_lladdr;
|
| 1956 |
|
|
#else
|
| 1957 |
|
|
CCIF extern uip_lladdr_t uip_lladdr;
|
| 1958 |
|
|
#endif
|
| 1959 |
|
|
#if UIP_CONF_IPV6 != 0
|
| 1960 |
|
|
|
| 1961 |
|
|
/**
|
| 1962 |
|
|
* \brief Is IPv6 address a the unspecified address
|
| 1963 |
|
|
* a is of type uip_ipaddr_t
|
| 1964 |
|
|
*/
|
| 1965 |
|
|
#define uip_is_addr_unspecified( a ) \
|
| 1966 |
|
|
( \
|
| 1967 |
|
|
(((a)->u16[0]) == 0) && \
|
| 1968 |
|
|
(((a)->u16[1]) == 0) && \
|
| 1969 |
|
|
(((a)->u16[2]) == 0) && \
|
| 1970 |
|
|
(((a)->u16[3]) == 0) && \
|
| 1971 |
|
|
(((a)->u16[4]) == 0) && \
|
| 1972 |
|
|
(((a)->u16[5]) == 0) && \
|
| 1973 |
|
|
(((a)->u16[6]) == 0) && \
|
| 1974 |
|
|
(((a)->u16[7]) == 0) \
|
| 1975 |
|
|
)
|
| 1976 |
|
|
|
| 1977 |
|
|
/** \brief Is IPv6 address a the link local all-nodes multicast address */
|
| 1978 |
|
|
#define uip_is_addr_linklocal_allnodes_mcast( a ) \
|
| 1979 |
|
|
( \
|
| 1980 |
|
|
(((a)->u8[0]) == 0xff) && \
|
| 1981 |
|
|
(((a)->u8[1]) == 0x02) && \
|
| 1982 |
|
|
(((a)->u16[1]) == 0) && \
|
| 1983 |
|
|
(((a)->u16[2]) == 0) && \
|
| 1984 |
|
|
(((a)->u16[3]) == 0) && \
|
| 1985 |
|
|
(((a)->u16[4]) == 0) && \
|
| 1986 |
|
|
(((a)->u16[5]) == 0) && \
|
| 1987 |
|
|
(((a)->u16[6]) == 0) && \
|
| 1988 |
|
|
(((a)->u8[14]) == 0) && \
|
| 1989 |
|
|
(((a)->u8[15]) == 0x01) \
|
| 1990 |
|
|
)
|
| 1991 |
|
|
|
| 1992 |
|
|
/** \brief set IP address a to unspecified */
|
| 1993 |
|
|
#define uip_create_unspecified( a ) uip_ip6addr( a, 0, 0, 0, 0, 0, 0, 0, 0 )
|
| 1994 |
|
|
|
| 1995 |
|
|
/** \brief set IP address a to the link local all-nodes multicast address */
|
| 1996 |
|
|
#define uip_create_linklocal_allnodes_mcast( a ) uip_ip6addr( a, 0xff02, 0, 0, 0, 0, 0, 0, 0x0001 )
|
| 1997 |
|
|
|
| 1998 |
|
|
/** \brief set IP address a to the link local all-routers multicast address */
|
| 1999 |
|
|
#define uip_create_linklocal_allrouters_mcast( a ) uip_ip6addr( a, 0xff02, 0, 0, 0, 0, 0, 0, 0x0002 )
|
| 2000 |
|
|
|
| 2001 |
|
|
/**
|
| 2002 |
|
|
* \brief is addr (a) a solicited node multicast address, see RFC3513
|
| 2003 |
|
|
* a is of type uip_ipaddr_t*
|
| 2004 |
|
|
*/
|
| 2005 |
|
|
#define uip_is_addr_solicited_node( a ) \
|
| 2006 |
|
|
( \
|
| 2007 |
|
|
(((a)->u8[0]) == 0xFF) && \
|
| 2008 |
|
|
(((a)->u8[1]) == 0x02) && \
|
| 2009 |
|
|
(((a)->u16[1]) == 0) && \
|
| 2010 |
|
|
(((a)->u16[2]) == 0) && \
|
| 2011 |
|
|
(((a)->u16[3]) == 0) && \
|
| 2012 |
|
|
(((a)->u16[4]) == 0) && \
|
| 2013 |
|
|
(((a)->u16[5]) == 1) && \
|
| 2014 |
|
|
(((a)->u8[12]) == 0xFF) \
|
| 2015 |
|
|
)
|
| 2016 |
|
|
|
| 2017 |
|
|
/**
|
| 2018 |
|
|
* \briefput in b the solicited node address corresponding to address a
|
| 2019 |
|
|
* both a and b are of type uip_ipaddr_t*
|
| 2020 |
|
|
* */
|
| 2021 |
|
|
#define uip_create_solicited_node( a, b ) \
|
| 2022 |
|
|
( ((b)->u8[0]) = 0xFF ); \
|
| 2023 |
|
|
( ((b)->u8[1]) = 0x02 ); \
|
| 2024 |
|
|
( ((b)->u16[1]) = 0 ); \
|
| 2025 |
|
|
( ((b)->u16[2]) = 0 ); \
|
| 2026 |
|
|
( ((b)->u16[3]) = 0 ); \
|
| 2027 |
|
|
( ((b)->u16[4]) = 0 ); \
|
| 2028 |
|
|
( ((b)->u8[10]) = 0 ); \
|
| 2029 |
|
|
( ((b)->u8[11]) = 0x01 ); \
|
| 2030 |
|
|
( ((b)->u8[12]) = 0xFF ); \
|
| 2031 |
|
|
( ((b)->u8[13]) = ((a)->u8[13]) ); \
|
| 2032 |
|
|
( ((b)->u16[7]) = ((a)->u16[7]) )
|
| 2033 |
|
|
|
| 2034 |
|
|
/**
|
| 2035 |
|
|
* \brief is addr (a) a link local unicast address, see RFC3513
|
| 2036 |
|
|
* i.e. is (a) on prefix FE80::/10
|
| 2037 |
|
|
* a is of type uip_ipaddr_t*
|
| 2038 |
|
|
*/
|
| 2039 |
|
|
#define uip_is_addr_link_local( a ) ( (((a)->u8[0]) == 0xFE) && (((a)->u8[1]) == 0x80) )
|
| 2040 |
|
|
|
| 2041 |
|
|
/**
|
| 2042 |
|
|
* \brief was addr (a) forged based on the mac address m
|
| 2043 |
|
|
* a type is uip_ipaddr_t
|
| 2044 |
|
|
* m type is uiplladdr_t
|
| 2045 |
|
|
*/
|
| 2046 |
|
|
#ifdef UIP_CONF_LL_802154
|
| 2047 |
|
|
#define uip_is_addr_mac_addr_based( a, m ) \
|
| 2048 |
|
|
( \
|
| 2049 |
|
|
(((a)->u8[8]) == (((m)->addr[0]) ^ 0x02)) && \
|
| 2050 |
|
|
(((a)->u8[9]) == (m)->addr[1]) && \
|
| 2051 |
|
|
(((a)->u8[10]) == (m)->addr[2]) && \
|
| 2052 |
|
|
(((a)->u8[11]) == (m)->addr[3]) && \
|
| 2053 |
|
|
(((a)->u8[12]) == (m)->addr[4]) && \
|
| 2054 |
|
|
(((a)->u8[13]) == (m)->addr[5]) && \
|
| 2055 |
|
|
(((a)->u8[14]) == (m)->addr[6]) && \
|
| 2056 |
|
|
(((a)->u8[15]) == (m)->addr[7]) \
|
| 2057 |
|
|
)
|
| 2058 |
|
|
#else
|
| 2059 |
|
|
#define uip_is_addr_mac_addr_based( a, m ) \
|
| 2060 |
|
|
( \
|
| 2061 |
|
|
(((a)->u8[8]) == (((m)->addr[0]) | 0x02)) && \
|
| 2062 |
|
|
(((a)->u8[9]) == (m)->addr[1]) && \
|
| 2063 |
|
|
(((a)->u8[10]) == (m)->addr[2]) && \
|
| 2064 |
|
|
(((a)->u8[11]) == 0xff) && \
|
| 2065 |
|
|
(((a)->u8[12]) == 0xfe) && \
|
| 2066 |
|
|
(((a)->u8[13]) == (m)->addr[3]) && \
|
| 2067 |
|
|
(((a)->u8[14]) == (m)->addr[4]) && \
|
| 2068 |
|
|
(((a)->u8[15]) == (m)->addr[5]) \
|
| 2069 |
|
|
)
|
| 2070 |
|
|
#endif /*UIP_CONF_LL_802154*/
|
| 2071 |
|
|
|
| 2072 |
|
|
/**
|
| 2073 |
|
|
* \brief is address a multicast address, see RFC 3513
|
| 2074 |
|
|
* a is of type uip_ipaddr_t*
|
| 2075 |
|
|
* */
|
| 2076 |
|
|
#define uip_is_addr_mcast( a ) ( ((a)->u8[0]) == 0xFF )
|
| 2077 |
|
|
|
| 2078 |
|
|
/**
|
| 2079 |
|
|
* \brief is group-id of multicast address a
|
| 2080 |
|
|
* the all nodes group-id
|
| 2081 |
|
|
*/
|
| 2082 |
|
|
#define uip_is_mcast_group_id_all_nodes( a ) \
|
| 2083 |
|
|
( \
|
| 2084 |
|
|
(((a)->u16[1]) == 0) && \
|
| 2085 |
|
|
(((a)->u16[2]) == 0) && \
|
| 2086 |
|
|
(((a)->u16[3]) == 0) && \
|
| 2087 |
|
|
(((a)->u16[4]) == 0) && \
|
| 2088 |
|
|
(((a)->u16[5]) == 0) && \
|
| 2089 |
|
|
(((a)->u16[6]) == 0) && \
|
| 2090 |
|
|
(((a)->u8[14]) == 0) && \
|
| 2091 |
|
|
(((a)->u8[15]) == 1) \
|
| 2092 |
|
|
)
|
| 2093 |
|
|
|
| 2094 |
|
|
/**
|
| 2095 |
|
|
* \brief is group-id of multicast address a
|
| 2096 |
|
|
* the all routers group-id
|
| 2097 |
|
|
*/
|
| 2098 |
|
|
#define uip_is_mcast_group_id_all_routers( a ) \
|
| 2099 |
|
|
( \
|
| 2100 |
|
|
(((a)->u16[1]) == 0) && \
|
| 2101 |
|
|
(((a)->u16[2]) == 0) && \
|
| 2102 |
|
|
(((a)->u16[3]) == 0) && \
|
| 2103 |
|
|
(((a)->u16[4]) == 0) && \
|
| 2104 |
|
|
(((a)->u16[5]) == 0) && \
|
| 2105 |
|
|
(((a)->u16[6]) == 0) && \
|
| 2106 |
|
|
(((a)->u8[14]) == 0) && \
|
| 2107 |
|
|
(((a)->u8[15]) == 2) \
|
| 2108 |
|
|
)
|
| 2109 |
|
|
#endif /*UIP_CONF_IPV6*/
|
| 2110 |
|
|
|
| 2111 |
|
|
/**
|
| 2112 |
|
|
* Calculate the Internet checksum over a buffer.
|
| 2113 |
|
|
*
|
| 2114 |
|
|
* The Internet checksum is the one's complement of the one's
|
| 2115 |
|
|
* complement sum of all 16-bit words in the buffer.
|
| 2116 |
|
|
*
|
| 2117 |
|
|
* See RFC1071.
|
| 2118 |
|
|
*
|
| 2119 |
|
|
* \param buf A pointer to the buffer over which the checksum is to be
|
| 2120 |
|
|
* computed.
|
| 2121 |
|
|
*
|
| 2122 |
|
|
* \param len The length of the buffer over which the checksum is to
|
| 2123 |
|
|
* be computed.
|
| 2124 |
|
|
*
|
| 2125 |
|
|
* \return The Internet checksum of the buffer.
|
| 2126 |
|
|
*/
|
| 2127 |
|
|
u16_t uip_chksum( u16_t *buf, u16_t len );
|
| 2128 |
|
|
|
| 2129 |
|
|
/**
|
| 2130 |
|
|
* Calculate the IP header checksum of the packet header in uip_buf.
|
| 2131 |
|
|
*
|
| 2132 |
|
|
* The IP header checksum is the Internet checksum of the 20 bytes of
|
| 2133 |
|
|
* the IP header.
|
| 2134 |
|
|
*
|
| 2135 |
|
|
* \return The IP header checksum of the IP header in the uip_buf
|
| 2136 |
|
|
* buffer.
|
| 2137 |
|
|
*/
|
| 2138 |
|
|
u16_t uip_ipchksum( void );
|
| 2139 |
|
|
|
| 2140 |
|
|
/**
|
| 2141 |
|
|
* Calculate the TCP checksum of the packet in uip_buf and uip_appdata.
|
| 2142 |
|
|
*
|
| 2143 |
|
|
* The TCP checksum is the Internet checksum of data contents of the
|
| 2144 |
|
|
* TCP segment, and a pseudo-header as defined in RFC793.
|
| 2145 |
|
|
*
|
| 2146 |
|
|
* \return The TCP checksum of the TCP segment in uip_buf and pointed
|
| 2147 |
|
|
* to by uip_appdata.
|
| 2148 |
|
|
*/
|
| 2149 |
|
|
u16_t uip_tcpchksum( void );
|
| 2150 |
|
|
|
| 2151 |
|
|
/**
|
| 2152 |
|
|
* Calculate the UDP checksum of the packet in uip_buf and uip_appdata.
|
| 2153 |
|
|
*
|
| 2154 |
|
|
* The UDP checksum is the Internet checksum of data contents of the
|
| 2155 |
|
|
* UDP segment, and a pseudo-header as defined in RFC768.
|
| 2156 |
|
|
*
|
| 2157 |
|
|
* \return The UDP checksum of the UDP segment in uip_buf and pointed
|
| 2158 |
|
|
* to by uip_appdata.
|
| 2159 |
|
|
*/
|
| 2160 |
|
|
u16_t uip_udpchksum( void );
|
| 2161 |
|
|
|
| 2162 |
|
|
/**
|
| 2163 |
|
|
* Calculate the ICMP checksum of the packet in uip_buf.
|
| 2164 |
|
|
*
|
| 2165 |
|
|
* \return The ICMP checksum of the ICMP packet in uip_buf
|
| 2166 |
|
|
*/
|
| 2167 |
|
|
u16_t uip_icmp6chksum( void );
|
| 2168 |
|
|
#endif /* __UIP_H__ */
|
| 2169 |
|
|
|
| 2170 |
|
|
/** @} */
|
