adamdunkels | 2f5291c | 2003-04-09 12:55:06 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2001-2002, Adam Dunkels. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. All advertising materials mentioning features or use of this software |
| 14 | * must display the following acknowledgement: |
| 15 | * This product includes software developed by Adam Dunkels. |
| 16 | * 4. The name of the author may not be used to endorse or promote |
| 17 | * products derived from this software without specific prior |
| 18 | * written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
| 21 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 22 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 24 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
| 26 | * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 28 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 29 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | * This file is part of the uIP TCP/IP stack. |
| 33 | * |
oliverschmidt | d2fed3b | 2005-01-26 23:36:23 +0000 | [diff] [blame] | 34 | * $Id: uip.h,v 1.2 2005/01/26 23:36:23 oliverschmidt Exp $ |
adamdunkels | 2f5291c | 2003-04-09 12:55:06 +0000 | [diff] [blame] | 35 | * |
| 36 | */ |
| 37 | |
| 38 | #ifndef __UIP_H__ |
| 39 | #define __UIP_H__ |
| 40 | |
| 41 | #include "uipopt.h" |
| 42 | |
| 43 | #ifndef UIP_IPV6 |
| 44 | #define UIP_IPV6 0 |
| 45 | #endif |
| 46 | |
| 47 | /*-----------------------------------------------------------------------------------*/ |
| 48 | /* First, the functions that should be called from the |
| 49 | * system. Initialization, the periodic timer and incoming packets are |
| 50 | * handled by the following three functions. |
| 51 | */ |
| 52 | |
| 53 | /* uip_init(void): |
| 54 | * |
| 55 | * Must be called at boot up to configure the uIP data structures. |
| 56 | */ |
| 57 | void uip_init(void); |
| 58 | |
| 59 | /* uip_periodic(conn): |
| 60 | * |
| 61 | * Should be called when the periodic timer has fired. Should be |
| 62 | * called once per connection (0 - UIP_CONNS). |
| 63 | */ |
| 64 | #define uip_periodic(conn) do { uip_conn = &uip_conns[conn]; \ |
| 65 | uip_process(UIP_TIMER); } while (0) |
| 66 | |
| 67 | /* uip_input(void): |
| 68 | * |
| 69 | * Is called when the network device driver has received new data. |
| 70 | */ |
| 71 | #define uip_input() uip_process(UIP_DATA) |
| 72 | |
| 73 | /* uip_sethostaddr(addr): |
| 74 | * |
| 75 | * Is used to set the IP address. |
| 76 | */ |
| 77 | #define uip_sethostaddr(addr) do { uip_hostaddr[0] = addr[0]; \ |
| 78 | uip_hostaddr[1] = addr[1]; } while(0) |
| 79 | |
| 80 | #if UIP_UDP |
| 81 | /* uip_udp_periodic(conn): |
| 82 | */ |
| 83 | #define uip_udp_periodic(conn) do { uip_udp_conn = &uip_udp_conns[conn]; \ |
| 84 | uip_process(UIP_UDP_TIMER); } while (0) |
| 85 | #endif /* UIP_UDP */ |
| 86 | /*-----------------------------------------------------------------------------------*/ |
| 87 | /* Functions that are used by the uIP application program. Opening and |
| 88 | * closing connections, sending and receiving data, etc. is all |
| 89 | * handled by the functions below. |
| 90 | */ |
| 91 | |
| 92 | /* uip_listen(port): |
| 93 | * |
| 94 | * Starts listening to the specified port. |
| 95 | */ |
| 96 | void uip_listen(u16_t port); |
| 97 | |
| 98 | /* uip_connect(ripaddr, port): |
| 99 | * |
| 100 | * Returns a connection identifier that connects to a port on the |
| 101 | * specified host (given in ripaddr). If no connections are avaliable, |
| 102 | * the function returns NULL. This function is avaliable only if |
| 103 | * support for active open has been configured (#define |
| 104 | * UIP_ACTIVE_OPEN 1 in uipopt.h) |
| 105 | */ |
| 106 | struct uip_conn *uip_connect(u16_t *ripaddr, u16_t port); |
| 107 | |
| 108 | #if UIP_UDP |
| 109 | /* uip_udp_new(ripaddr, rport): |
| 110 | * |
| 111 | * Sets up a new UDP "connection" with the specified parameters. |
| 112 | */ |
| 113 | struct uip_udp_conn *uip_udp_new(u16_t *ripaddr, u16_t rport); |
| 114 | |
| 115 | /* uip_udp_remove(conn): |
| 116 | * |
| 117 | * Removes the UDP "connection". |
| 118 | */ |
| 119 | #define uip_udp_remove(conn) (conn)->lport = 0 |
| 120 | |
| 121 | /* uip_udp_send(len): |
| 122 | * |
| 123 | * Sends a UDP datagram of length len. The data must be present in the |
| 124 | * uip_buf buffer (pointed to by uip_appdata). |
| 125 | */ |
| 126 | #define uip_udp_send(len) uip_slen = (len) |
| 127 | #endif /* UIP_UDP */ |
| 128 | |
| 129 | |
| 130 | /* uip_outstanding(conn): |
| 131 | * |
| 132 | * Checks whether a connection has outstanding (i.e., unacknowledged) |
| 133 | * data. |
| 134 | */ |
| 135 | #define uip_outstanding(conn) ((conn)->len) |
| 136 | |
| 137 | /* uip_send(data, len): |
| 138 | * |
| 139 | * Send data on the current connection. The length of the data must |
| 140 | * not exceed the maxium segment size (MSS) for the connection. |
| 141 | */ |
| 142 | #define uip_send(data, len) do { uip_appdata = (data); uip_slen = (len);} while(0) |
| 143 | |
| 144 | /* uip_datalen(): |
| 145 | * |
| 146 | * The length of the data that is currently avaliable (if avaliable) |
| 147 | * in the uip_appdata buffer. The test function uip_data() is |
| 148 | * used to check if data is avaliable. |
| 149 | */ |
| 150 | #define uip_datalen() uip_len |
| 151 | |
| 152 | #define uip_urgdatalen() uip_urglen |
| 153 | |
| 154 | /* uip_close(): |
| 155 | * |
| 156 | * Close the current connection. |
| 157 | */ |
| 158 | #define uip_close() (uip_flags = UIP_CLOSE) |
| 159 | |
| 160 | /* uip_abort(): |
| 161 | * |
| 162 | * Abort the current connection. |
| 163 | */ |
| 164 | #define uip_abort() (uip_flags = UIP_ABORT) |
| 165 | |
| 166 | /* uip_stop(): |
| 167 | * |
| 168 | * Close our receiver's window so that we stop receiving data for the |
| 169 | * current connection. |
| 170 | */ |
| 171 | #define uip_stop() (uip_conn->tcpstateflags |= UIP_STOPPED) |
| 172 | |
| 173 | /* uip_stopped(): |
| 174 | * |
| 175 | * Find out if the current connection has been previously stopped. |
| 176 | */ |
| 177 | #define uip_stopped(conn) ((conn)->tcpstateflags & UIP_STOPPED) |
| 178 | |
| 179 | /* uip_restart(): |
| 180 | * |
| 181 | * Open the window again so that we start receiving data for the |
| 182 | * current connection. |
| 183 | */ |
| 184 | #define uip_restart() do { uip_flags |= UIP_NEWDATA; \ |
| 185 | uip_conn->tcpstateflags &= ~UIP_STOPPED; \ |
| 186 | } while(0) |
| 187 | |
| 188 | |
| 189 | /* uIP tests that can be made to determine in what state the current |
| 190 | connection is, and what the application function should do. */ |
| 191 | |
| 192 | /* uip_newdata(): |
| 193 | * |
| 194 | * Will reduce to non-zero if there is new data for the application |
| 195 | * present at the uip_appdata pointer. The size of the data is |
| 196 | * avaliable through the uip_len variable. |
| 197 | */ |
| 198 | #define uip_newdata() (uip_flags & UIP_NEWDATA) |
| 199 | |
| 200 | /* uip_acked(): |
| 201 | * |
| 202 | * Will reduce to non-zero if the previously sent data has been |
| 203 | * acknowledged by the remote host. This means that the application |
| 204 | * can send new data. uip_reset_acked() can be used to reset the acked |
| 205 | * flag. |
| 206 | */ |
| 207 | #define uip_acked() (uip_flags & UIP_ACKDATA) |
| 208 | #define uip_reset_acked() (uip_flags &= ~UIP_ACKDATA) |
| 209 | |
| 210 | /* uip_connected(): |
| 211 | * |
| 212 | * Reduces to non-zero if the current connection has been connected to |
| 213 | * a remote host. This will happen both if the connection has been |
| 214 | * actively opened (with uip_connect()) or passively opened (with |
| 215 | * uip_listen()). |
| 216 | */ |
| 217 | #define uip_connected() (uip_flags & UIP_CONNECTED) |
| 218 | |
| 219 | /* uip_closed(): |
| 220 | * |
| 221 | * Is non-zero if the connection has been closed by the remote |
| 222 | * host. The application may do the necessary clean-ups. |
| 223 | */ |
| 224 | #define uip_closed() (uip_flags & UIP_CLOSE) |
| 225 | |
| 226 | /* uip_aborted(): |
| 227 | * |
| 228 | * Non-zero if the current connection has been aborted (reset) by the |
| 229 | * remote host. |
| 230 | */ |
| 231 | #define uip_aborted() (uip_flags & UIP_ABORT) |
| 232 | |
| 233 | /* uip_timedout(): |
| 234 | * |
| 235 | * Non-zero if the current connection has been aborted due to too many |
| 236 | * retransmissions. |
| 237 | */ |
| 238 | #define uip_timedout() (uip_flags & UIP_TIMEDOUT) |
| 239 | |
| 240 | /* uip_rexmit(): |
| 241 | * |
| 242 | * Reduces to non-zero if the previously sent data has been lost in |
| 243 | * the network, and the application should retransmit it. The |
| 244 | * application should set the uip_appdata buffer and the uip_len |
| 245 | * variable just as it did the last time this data was to be |
| 246 | * transmitted. |
| 247 | */ |
| 248 | #define uip_rexmit() (uip_flags & UIP_REXMIT) |
| 249 | |
| 250 | /* uip_poll(): |
| 251 | * |
| 252 | * Is non-zero if the reason the application is invoked is that the |
| 253 | * current connection has been idle for a while and should be |
| 254 | * polled. |
| 255 | */ |
| 256 | #define uip_poll() (uip_flags & UIP_POLL) |
| 257 | |
| 258 | /* uip_mss(): |
| 259 | * |
| 260 | * Gives the current maxium segment size (MSS) of the current |
| 261 | * connection. |
| 262 | */ |
| 263 | #define uip_mss() (uip_conn->mss) |
| 264 | |
| 265 | |
| 266 | /* uIP convenience and converting functions. */ |
| 267 | |
| 268 | /* uip_ipaddr(&ipaddr, addr0,addr1,addr2,addr3): |
| 269 | * |
| 270 | * Packs an IP address into a two element 16-bit array. Such arrays |
| 271 | * are used to represent IP addresses in uIP. |
| 272 | */ |
| 273 | #define uip_ipaddr(addr, addr0,addr1,addr2,addr3) do { \ |
| 274 | (addr)[0] = HTONS(((addr0) << 8) | (addr1)); \ |
| 275 | (addr)[1] = HTONS(((addr2) << 8) | (addr3)); \ |
| 276 | } while(0) |
| 277 | |
| 278 | /* HTONS(): |
| 279 | * |
| 280 | * Macros for converting 16-bit quantities between host and network |
| 281 | * byte order. |
| 282 | */ |
| 283 | #ifndef HTONS |
| 284 | # if BYTE_ORDER == BIG_ENDIAN |
| 285 | # define HTONS(n) (n) |
| 286 | # else /* BYTE_ORDER == BIG_ENDIAN */ |
| 287 | # define HTONS(n) ((((u16_t)((n) & 0xff)) << 8) | (((n) & 0xff00) >> 8)) |
| 288 | # endif /* BYTE_ORDER == BIG_ENDIAN */ |
| 289 | #endif /* HTONS */ |
| 290 | |
| 291 | #ifndef htons |
| 292 | u16_t htons(u16_t val); |
| 293 | #endif /* htons */ |
| 294 | |
| 295 | /*-----------------------------------------------------------------------------------*/ |
| 296 | /* The following global variables are used for passing parameters |
| 297 | * between uIP, the network device driver and the application. */ |
| 298 | /*-----------------------------------------------------------------------------------*/ |
| 299 | |
| 300 | /* u8_t uip_buf[UIP_BUFSIZE]: |
| 301 | * |
| 302 | * The uip_buf array is used to hold incoming and outgoing |
| 303 | * packets. The device driver fills this with incoming packets. |
| 304 | */ |
| 305 | extern u8_t uip_buf[UIP_BUFSIZE]; |
| 306 | |
| 307 | /* u8_t *uip_appdata: |
| 308 | * |
| 309 | * This pointer points to the application data when the application is |
| 310 | * called. If the application wishes to send data, this is where the |
| 311 | * application should write it. The application can also point this to |
| 312 | * another location. |
| 313 | */ |
| 314 | extern volatile u8_t *uip_appdata; |
| 315 | |
| 316 | #if UIP_URGDATA > 0 |
| 317 | /* u8_t *uip_urgdata: |
| 318 | * |
| 319 | * This pointer points to any urgent data that has been received. Only |
| 320 | * present if compiled with support for urgent data (UIP_URGDATA). |
| 321 | */ |
| 322 | extern volatile u8_t *uip_urgdata; |
| 323 | #endif /* UIP_URGDATA > 0 */ |
| 324 | |
| 325 | |
| 326 | /* u[8|16]_t uip_len: |
| 327 | * |
| 328 | * When the application is called, uip_len contains the length of any |
| 329 | * new data that has been received from the remote host. The |
| 330 | * application should set this variable to the size of any data that |
| 331 | * the application wishes to send. When the network device driver |
| 332 | * output function is called, uip_len should contain the length of the |
| 333 | * outgoing packet. |
| 334 | */ |
adamdunkels | 2f5291c | 2003-04-09 12:55:06 +0000 | [diff] [blame] | 335 | extern volatile u16_t uip_len, uip_slen; |
adamdunkels | 2f5291c | 2003-04-09 12:55:06 +0000 | [diff] [blame] | 336 | |
| 337 | #if UIP_URGDATA > 0 |
| 338 | extern volatile u8_t uip_urglen, uip_surglen; |
| 339 | #endif /* UIP_URGDATA > 0 */ |
| 340 | |
| 341 | extern volatile u8_t uip_acc32[4]; |
| 342 | |
| 343 | /* struct uip_conn: |
| 344 | * |
| 345 | * The uip_conn structure is used for identifying a connection. All |
| 346 | * but one field in the structure are to be considered read-only by an |
| 347 | * application. The only exception is the appstate field whos purpose |
| 348 | * is to let the application store application-specific state (e.g., |
| 349 | * file pointers) for the connection. The size of this field is |
| 350 | * configured in the "uipopt.h" header file. |
| 351 | */ |
| 352 | struct uip_conn { |
| 353 | #if UIP_IPV6 |
| 354 | u16_t ripaddr[8]; /* The IP address of the remote peer. */ |
| 355 | #else /* UIP_IPV6 */ |
| 356 | u16_t ripaddr[2]; /* The IP address of the remote peer. */ |
| 357 | #endif /* UIP_IPV6 */ |
| 358 | |
| 359 | u16_t lport, rport; /* The local and the remote port. */ |
| 360 | |
| 361 | u8_t rcv_nxt[4]; /* The sequence number that we expect to receive |
| 362 | next. */ |
| 363 | u8_t snd_nxt[4]; /* The sequence number that was last sent by |
| 364 | us. */ |
| 365 | #if UIP_TCP_MSS > 255 |
| 366 | u16_t len; |
| 367 | u16_t mss; /* Maximum segment size for the connection. */ |
| 368 | #else |
| 369 | u8_t len; |
| 370 | u8_t mss; |
| 371 | #endif /* UIP_TCP_MSS */ |
| 372 | u8_t sa, sv, rto; |
| 373 | u8_t tcpstateflags; /* TCP state and flags. */ |
| 374 | u8_t timer; /* The retransmission timer. */ |
| 375 | u8_t nrtx; /* Counts the number of retransmissions for a |
| 376 | particular segment. */ |
| 377 | |
| 378 | u8_t appstate[UIP_APPSTATE_SIZE]; |
| 379 | }; |
| 380 | |
| 381 | /* struct uip_conn *uip_conn: |
| 382 | * |
| 383 | * When the application is called, uip_conn will point to the current |
| 384 | * conntection, the one that should be processed by the |
| 385 | * application. The uip_conns[] array is a list containing all |
| 386 | * connections. |
| 387 | */ |
| 388 | extern struct uip_conn *uip_conn; |
| 389 | extern struct uip_conn uip_conns[UIP_CONNS]; |
| 390 | |
| 391 | #if UIP_UDP |
| 392 | /* struct uip_udp_conn: |
| 393 | * |
| 394 | * The uip_udp_conn structure is used for identifying UDP |
| 395 | * "connections". |
| 396 | */ |
| 397 | struct uip_udp_conn { |
| 398 | #if UIP_IPV6 |
| 399 | u16_t ripaddr[8]; /* The IP address of the remote peer. */ |
| 400 | #else /* UIP_IPV6 */ |
| 401 | u16_t ripaddr[2]; /* The IP address of the remote peer. */ |
| 402 | #endif /* UIP_IPV6 */ |
| 403 | u16_t lport, rport; |
| 404 | }; |
| 405 | |
| 406 | extern struct uip_udp_conn *uip_udp_conn; |
| 407 | extern struct uip_udp_conn uip_udp_conns[UIP_UDP_CONNS]; |
| 408 | #endif /* UIP_UDP */ |
| 409 | |
| 410 | /* struct uip_stats: |
| 411 | * |
| 412 | * Contains statistics about the TCP/IP stack. |
| 413 | */ |
| 414 | struct uip_stats { |
| 415 | struct { |
| 416 | uip_stats_t drop; |
| 417 | uip_stats_t recv; |
| 418 | uip_stats_t sent; |
| 419 | uip_stats_t vhlerr; /* Number of packets dropped due to wrong IP version |
| 420 | or header length. */ |
| 421 | uip_stats_t hblenerr; /* Number of packets dropped due to wrong IP length, |
| 422 | high byte. */ |
| 423 | uip_stats_t lblenerr; /* Number of packets dropped due to wrong IP length, |
| 424 | low byte. */ |
| 425 | uip_stats_t fragerr; /* Number of packets dropped since they were IP |
| 426 | fragments. */ |
| 427 | uip_stats_t chkerr; /* Number of packets dropped due to IP checksum errors. */ |
| 428 | uip_stats_t protoerr; /* Number of packets dropped since they were neither |
| 429 | ICMP nor TCP. */ |
| 430 | } ip; |
| 431 | struct { |
| 432 | uip_stats_t drop; |
| 433 | uip_stats_t recv; |
| 434 | uip_stats_t sent; |
| 435 | uip_stats_t typeerr; |
| 436 | } icmp; |
| 437 | struct { |
| 438 | uip_stats_t drop; |
| 439 | uip_stats_t recv; |
| 440 | uip_stats_t sent; |
| 441 | uip_stats_t chkerr; |
| 442 | uip_stats_t ackerr; |
| 443 | uip_stats_t rst; |
| 444 | uip_stats_t rexmit; |
| 445 | uip_stats_t syndrop; /* Number of dropped SYNs due to too few |
| 446 | connections was avaliable. */ |
| 447 | uip_stats_t synrst; /* Number of SYNs for closed ports, triggering a |
| 448 | RST. */ |
| 449 | } tcp; |
| 450 | }; |
| 451 | |
| 452 | extern struct uip_stats uip_stat; |
| 453 | |
| 454 | |
| 455 | /*-----------------------------------------------------------------------------------*/ |
| 456 | /* All the stuff below this point is internal to uIP and should not be |
| 457 | * used directly by an application or by a device driver. |
| 458 | */ |
| 459 | /*-----------------------------------------------------------------------------------*/ |
| 460 | /* u8_t uip_flags: |
| 461 | * |
| 462 | * When the application is called, uip_flags will contain the flags |
| 463 | * that are defined in this file. Please read below for more |
| 464 | * infomation. |
| 465 | */ |
| 466 | extern volatile u8_t uip_flags; |
| 467 | |
| 468 | /* The following flags may be set in the global variable uip_flags |
| 469 | before calling the application callback. The UIP_ACKDATA and |
| 470 | UIP_NEWDATA flags may both be set at the same time, whereas the |
| 471 | others are mutualy exclusive. Note that these flags should *NOT* be |
| 472 | accessed directly, but through the uIP functions/macros. */ |
| 473 | |
| 474 | #define UIP_ACKDATA 1 /* Signifies that the outstanding data was |
| 475 | acked and the application should send |
| 476 | out new data instead of retransmitting |
| 477 | the last data. */ |
| 478 | #define UIP_NEWDATA 2 /* Flags the fact that the peer has sent |
| 479 | us new data. */ |
| 480 | #define UIP_REXMIT 4 /* Tells the application to retransmit the |
| 481 | data that was last sent. */ |
| 482 | #define UIP_POLL 8 /* Used for polling the application, to |
| 483 | check if the application has data that |
| 484 | it wants to send. */ |
| 485 | #define UIP_CLOSE 16 /* The remote host has closed the |
| 486 | connection, thus the connection has |
| 487 | gone away. Or the application signals |
| 488 | that it wants to close the |
| 489 | connection. */ |
| 490 | #define UIP_ABORT 32 /* The remote host has aborted the |
| 491 | connection, thus the connection has |
| 492 | gone away. Or the application signals |
| 493 | that it wants to abort the |
| 494 | connection. */ |
| 495 | #define UIP_CONNECTED 64 /* We have got a connection from a remote |
| 496 | host and have set up a new connection |
| 497 | for it, or an active connection has |
| 498 | been successfully established. */ |
| 499 | |
| 500 | #define UIP_TIMEDOUT 128 /* The connection has been aborted due to |
| 501 | too many retransmissions. */ |
| 502 | |
| 503 | |
| 504 | /* uip_process(flag): |
| 505 | * |
| 506 | * The actual uIP function which does all the work. |
| 507 | */ |
| 508 | void uip_process(u8_t flag); |
| 509 | |
| 510 | /* The following flags are passed as an argument to the uip_process() |
| 511 | function. They are used to distinguish between the two cases where |
| 512 | uip_process() is called. It can be called either because we have |
| 513 | incoming data that should be processed, or because the periodic |
| 514 | timer has fired. */ |
| 515 | |
| 516 | #define UIP_DATA 1 /* Tells uIP that there is incoming data in |
| 517 | the uip_buf buffer. The length of the |
| 518 | data is stored in the global variable |
| 519 | uip_len. */ |
| 520 | #define UIP_TIMER 2 /* Tells uIP that the periodic timer has |
| 521 | fired. */ |
| 522 | #if UIP_UDP |
| 523 | #define UIP_UDP_TIMER 3 |
| 524 | #endif /* UIP_UDP */ |
| 525 | |
| 526 | /* The TCP states used in the uip_conn->tcpstateflags. */ |
| 527 | #define CLOSED 0 |
| 528 | #define SYN_RCVD 1 |
| 529 | #define SYN_SENT 2 |
| 530 | #define ESTABLISHED 3 |
| 531 | #define FIN_WAIT_1 4 |
| 532 | #define FIN_WAIT_2 5 |
| 533 | #define CLOSING 6 |
| 534 | #define TIME_WAIT 7 |
| 535 | #define LAST_ACK 8 |
| 536 | #define TS_MASK 15 |
| 537 | |
| 538 | #define UIP_STOPPED 16 |
| 539 | |
| 540 | #if UIP_IPV6 |
| 541 | #define UIP_TCPIP_HLEN 60 |
| 542 | #else /* UIP_IPV6 */ |
| 543 | #define UIP_TCPIP_HLEN 40 |
| 544 | #endif /* UIP_IPV6 */ |
| 545 | |
| 546 | /* The TCP and IP headers. */ |
| 547 | typedef struct { |
| 548 | /* IP header. */ |
| 549 | #if UIP_IPV6 |
| 550 | u8_t vtc, |
| 551 | tcfl; |
| 552 | u16_t fl; |
| 553 | u8_t len[2]; |
| 554 | u8_t nxthdr, hoplim; |
| 555 | u16_t srcipaddr[8], |
| 556 | destipaddr[8]; |
| 557 | #else /* UIP_IPV6 */ |
| 558 | u8_t vhl, |
| 559 | tos, |
| 560 | len[2], |
| 561 | ipid[2], |
| 562 | ipoffset[2], |
| 563 | ttl, |
| 564 | proto; |
| 565 | u16_t ipchksum; |
| 566 | u16_t srcipaddr[2], |
| 567 | destipaddr[2]; |
| 568 | #endif /* UIP_IPV6 */ |
| 569 | |
| 570 | /* TCP header. */ |
| 571 | u16_t srcport, |
| 572 | destport; |
| 573 | u8_t seqno[4], |
| 574 | ackno[4], |
| 575 | tcpoffset, |
| 576 | flags, |
| 577 | wnd[2]; |
| 578 | u16_t tcpchksum; |
| 579 | u8_t urgp[2]; |
| 580 | u8_t optdata[4]; |
| 581 | } uip_tcpip_hdr; |
| 582 | |
| 583 | /* The ICMP and IP headers. */ |
| 584 | typedef struct { |
| 585 | /* IP header. */ |
| 586 | #if UIP_IPV6 |
| 587 | u16_t vtcfl; |
| 588 | u16_t fl; |
| 589 | u8_t len[2]; |
| 590 | u8_t nxthdr, hoplim; |
| 591 | u16_t srcipaddr[8], |
| 592 | destipaddr[8]; |
| 593 | #else /* UIP_IPV6 */ |
| 594 | u8_t vhl, |
| 595 | tos, |
| 596 | len[2], |
| 597 | ipid[2], |
| 598 | ipoffset[2], |
| 599 | ttl, |
| 600 | proto; |
| 601 | u16_t ipchksum; |
| 602 | u16_t srcipaddr[2], |
| 603 | destipaddr[2]; |
| 604 | #endif /* UIP_IPV6 */ |
| 605 | /* ICMP (echo) header. */ |
| 606 | u8_t type, icode; |
| 607 | u16_t icmpchksum; |
| 608 | u16_t id, seqno; |
| 609 | } uip_icmpip_hdr; |
| 610 | |
| 611 | |
| 612 | /* The UDP and IP headers. */ |
| 613 | typedef struct { |
| 614 | /* IP header. */ |
| 615 | #if UIP_IPV6 |
| 616 | u8_t vtc, |
| 617 | tcfl; |
| 618 | u16_t fl; |
| 619 | u8_t len[2]; |
| 620 | u8_t nxthdr, hoplim; |
| 621 | u16_t srcipaddr[8], |
| 622 | destipaddr[8]; |
| 623 | #else /* UIP_IPV6 */ |
| 624 | u8_t vhl, |
| 625 | tos, |
| 626 | len[2], |
| 627 | ipid[2], |
| 628 | ipoffset[2], |
| 629 | ttl, |
| 630 | proto; |
| 631 | u16_t ipchksum; |
| 632 | u16_t srcipaddr[2], |
| 633 | destipaddr[2]; |
| 634 | #endif /* UIP_IPV6 */ |
| 635 | |
| 636 | /* UDP header. */ |
| 637 | u16_t srcport, |
| 638 | destport; |
| 639 | u16_t udplen; |
| 640 | u16_t udpchksum; |
| 641 | } uip_udpip_hdr; |
| 642 | |
| 643 | #define UIP_PROTO_ICMP 1 |
| 644 | #define UIP_PROTO_TCP 6 |
| 645 | #define UIP_PROTO_UDP 17 |
| 646 | |
| 647 | #if UIP_FIXEDADDR |
| 648 | #if UIP_IPV6 |
| 649 | extern const u16_t uip_hostaddr[8]; |
| 650 | #else /* UIP_IPV6 */ |
| 651 | extern const u16_t uip_hostaddr[2]; |
| 652 | #endif /* UIP_IPV6 */ |
| 653 | #else /* UIP_FIXEDADDR */ |
| 654 | #if UIP_IPV6 |
| 655 | extern u16_t uip_hostaddr[8]; |
| 656 | #else /* UIP_IPV6 */ |
| 657 | extern u16_t uip_hostaddr[2]; |
| 658 | #endif /* UIP_IPV6 */ |
| 659 | #endif /* UIP_FIXEDADDR */ |
| 660 | |
| 661 | #endif /* __UIP_H__ */ |
| 662 | |
| 663 | |
| 664 | |
| 665 | |
| 666 | |
| 667 | |
| 668 | |