/* LUFA Library Copyright (C) Dean Camera, 2017. dean [at] fourwalledcubicle [dot] com www.lufa-lib.org */ /* Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that the copyright notice and this permission notice and warranty disclaimer appear in supporting documentation, and that the name of the author not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. The author disclaims all warranties with regard to this software, including all implied warranties of merchantability and fitness. In no event shall the author be liable for any special, indirect or consequential damages or any damages whatsoever resulting from loss of use, data or profits, whether in an action of contract, negligence or other tortious action, arising out of or in connection with the use or performance of this software. */ /** \file * * Header file for common DHCP defines. */ #ifndef _DHCP_COMMON_H_ #define _DHCP_COMMON_H_ /* Includes: */ #include #include #include #include "Config/AppConfig.h" #include /* Macros: */ /** UDP listen port for a BOOTP server. */ #define DHCP_SERVER_PORT 67 /** UDP listen port for a BOOTP client. */ #define DHCP_CLIENT_PORT 68 /** BOOTP message type for a BOOTP REQUEST message. */ #define DHCP_OP_BOOTREQUEST 0x01 /** BOOTP message type for a BOOTP REPLY message. */ #define DHCP_OP_BOOTREPLY 0x02 /** BOOTP flag for a BOOTP broadcast message. */ #define BOOTP_BROADCAST 0x8000 /** Magic DHCP cookie for a BOOTP message to identify it as a DHCP message. */ #define DHCP_MAGIC_COOKIE 0x63538263 /** Unique transaction ID used to identify DHCP responses to the client. */ #define DHCP_TRANSACTION_ID 0x13245466 /** DHCP message type for a DISCOVER message. */ #define DHCP_DISCOVER 1 /** DHCP message type for an OFFER message. */ #define DHCP_OFFER 2 /** DHCP message type for a REQUEST message. */ #define DHCP_REQUEST 3 /** DHCP message type for a DECLINE message. */ #define DHCP_DECLINE 4 /** DHCP message type for an ACK message. */ #define DHCP_ACK 5 /** DHCP message type for a NAK message. */ #define DHCP_NAK 6 /** DHCP message type for a RELEASE message. */ #define DHCP_RELEASE 7 /** DHCP medium type for standard Ethernet. */ #define DHCP_HTYPE_ETHERNET 1 /** DHCP message option for the network subnet mask. */ #define DHCP_OPTION_SUBNET_MASK 1 /** DHCP message option for the network gateway IP. */ #define DHCP_OPTION_ROUTER 3 /** DHCP message option for the network DNS server. */ #define DHCP_OPTION_DNS_SERVER 6 /** DHCP message option for the requested client IP address. */ #define DHCP_OPTION_REQ_IPADDR 50 /** DHCP message option for the IP address lease time. */ #define DHCP_OPTION_LEASE_TIME 51 /** DHCP message option for the DHCP message type. */ #define DHCP_OPTION_MSG_TYPE 53 /** DHCP message option for the DHCP server IP. */ #define DHCP_OPTION_SERVER_ID 54 /** DHCP message option for the list of required options from the server. */ #define DHCP_OPTION_REQ_LIST 55 /** DHCP message option for the options list terminator. */ #define DHCP_OPTION_END 255 /* Type Defines: */ /** Type define for a DHCP packet inside an Ethernet frame. */ typedef struct { uint8_t Operation; /**< DHCP operation, either DHCP_OP_BOOTREQUEST or DHCP_OP_BOOTREPLY */ uint8_t HardwareType; /**< Hardware carrier type constant */ uint8_t HardwareAddressLength; /**< Length in bytes of a hardware (MAC) address on the network */ uint8_t Hops; /**< Number of hops required to reach the server, unused */ uint32_t TransactionID; /**< Unique ID of the DHCP packet, for positive matching between sent and received packets */ uint16_t ElapsedSeconds; /**< Elapsed seconds since the request was made */ uint16_t Flags; /**< BOOTP packet flags */ uip_ipaddr_t ClientIP; /**< Client IP address, if already leased an IP */ uip_ipaddr_t YourIP; /**< Client IP address */ uip_ipaddr_t NextServerIP; /**< Legacy BOOTP protocol field, unused for DHCP */ uip_ipaddr_t RelayAgentIP; /**< Legacy BOOTP protocol field, unused for DHCP */ uint8_t ClientHardwareAddress[16]; /**< Hardware (MAC) address of the client making a request to the DHCP server */ uint8_t ServerHostnameString[64]; /**< Legacy BOOTP protocol field, unused for DHCP */ uint8_t BootFileName[128]; /**< Legacy BOOTP protocol field, unused for DHCP */ uint32_t Cookie; /**< Magic BOOTP protocol cookie to indicate a valid packet */ uint8_t Options[]; /**< DHCP message options */ } DHCP_Header_t; /* Function Prototypes: */ uint8_t DHCPCommon_SetOption(uint8_t* DHCPOptionList, const uint8_t Option, const uint8_t DataLen, void* const OptionData); bool DHCPCommon_GetOption(const uint8_t* DHCPOptionList, const uint8_t Option, void* const Destination); #endif href='#n77'>77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566