datalink.c revision 67912
10SN/A/*- 2661SN/A * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org> 3661SN/A * All rights reserved. 4661SN/A * 57636SN/A * Redistribution and use in source and binary forms, with or without 67636SN/A * modification, are permitted provided that the following conditions 77636SN/A * are met: 87636SN/A * 1. Redistributions of source code must retain the above copyright 97636SN/A * notice, this list of conditions and the following disclaimer. 107636SN/A * 2. Redistributions in binary form must reproduce the above copyright 117636SN/A * notice, this list of conditions and the following disclaimer in the 127636SN/A * documentation and/or other materials provided with the distribution. 13661SN/A * 147636SN/A * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 150SN/A * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 167636SN/A * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 177636SN/A * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 187636SN/A * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 197636SN/A * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 207636SN/A * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 217636SN/A * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 220SN/A * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 230SN/A * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 240SN/A * SUCH DAMAGE. 250SN/A * 260SN/A * $FreeBSD: head/usr.sbin/ppp/datalink.c 67912 2000-10-30 00:15:29Z brian $ 270SN/A */ 280SN/A 290SN/A#include <sys/param.h> 300SN/A#include <netinet/in.h> 319330SN/A#include <netinet/in_systm.h> 32661SN/A#include <netinet/ip.h> 33661SN/A#include <sys/un.h> 347636SN/A 350SN/A#include <ctype.h> 360SN/A#include <stdio.h> 370SN/A#include <stdlib.h> 380SN/A#include <string.h> 390SN/A#include <sys/uio.h> 400SN/A#include <termios.h> 410SN/A 420SN/A#include "layer.h" 430SN/A#include "mbuf.h" 440SN/A#include "log.h" 457636SN/A#include "defs.h" 460SN/A#include "timer.h" 470SN/A#include "fsm.h" 487636SN/A#include "descriptor.h" 490SN/A#include "lqr.h" 500SN/A#include "hdlc.h" 510SN/A#include "lcp.h" 520SN/A#include "async.h" 530SN/A#include "throughput.h" 540SN/A#include "ccp.h" 550SN/A#include "link.h" 560SN/A#include "physical.h" 570SN/A#include "iplist.h" 580SN/A#include "slcompress.h" 590SN/A#include "ipcp.h" 600SN/A#include "filter.h" 610SN/A#include "mp.h" 627636SN/A#ifndef NORADIUS 637636SN/A#include "radius.h" 640SN/A#endif 650SN/A#include "bundle.h" 660SN/A#include "chat.h" 670SN/A#include "auth.h" 680SN/A#include "prompt.h" 690SN/A#include "proto.h" 700SN/A#include "pap.h" 710SN/A#include "chap.h" 720SN/A#include "command.h" 730SN/A#include "cbcp.h" 747636SN/A#include "datalink.h" 757636SN/A 760SN/Astatic void datalink_LoginDone(struct datalink *); 770SN/Astatic void datalink_NewState(struct datalink *, int); 780SN/A 790SN/Astatic void 807636SN/Adatalink_OpenTimeout(void *v) 810SN/A{ 820SN/A struct datalink *dl = (struct datalink *)v; 830SN/A 847636SN/A timer_Stop(&dl->dial.timer); 857636SN/A if (dl->state == DATALINK_OPENING) 867636SN/A log_Printf(LogCHAT, "%s: Redial timer expired.\n", dl->name); 870SN/A} 880SN/A 897636SN/Astatic int 907636SN/Adatalink_StartDialTimer(struct datalink *dl, int Timeout) 910SN/A{ 920SN/A int result = Timeout; 930SN/A 940SN/A timer_Stop(&dl->dial.timer); 950SN/A if (Timeout) { 960SN/A if (Timeout > 0) 970SN/A dl->dial.timer.load = Timeout * SECTICKS; 980SN/A else { 990SN/A result = (random() % DIAL_TIMEOUT) + 1; 1000SN/A dl->dial.timer.load = result * SECTICKS; 1010SN/A } 1027636SN/A dl->dial.timer.func = datalink_OpenTimeout; 1037636SN/A dl->dial.timer.name = "dial"; 1040SN/A dl->dial.timer.arg = dl; 1050SN/A timer_Start(&dl->dial.timer); 1060SN/A if (dl->state == DATALINK_OPENING) 1070SN/A log_Printf(LogPHASE, "%s: Enter pause (%d) for redialing.\n", 1087636SN/A dl->name, Timeout); 1097636SN/A } 1100SN/A return result; 1117636SN/A} 1120SN/A 1130SN/Astatic void 1140SN/Adatalink_HangupDone(struct datalink *dl) 1150SN/A{ 1160SN/A if (dl->physical->type == PHYS_DEDICATED && !dl->bundle->CleaningUp && 1170SN/A dl->physical->fd != -1) { 1180SN/A /* Don't close our device if the link is dedicated */ 1190SN/A datalink_LoginDone(dl); 1200SN/A return; 1210SN/A } 1220SN/A 1230SN/A chat_Finish(&dl->chat); 1240SN/A physical_Close(dl->physical); 1250SN/A dl->phone.chosen = "N/A"; 1260SN/A 1270SN/A if (dl->cbcp.required) { 1287636SN/A log_Printf(LogPHASE, "Call peer back on %s\n", dl->cbcp.fsm.phone); 1297636SN/A dl->cfg.callback.opmask = 0; 1300SN/A strncpy(dl->cfg.phone.list, dl->cbcp.fsm.phone, 1310SN/A sizeof dl->cfg.phone.list - 1); 1327636SN/A dl->cfg.phone.list[sizeof dl->cfg.phone.list - 1] = '\0'; 1330SN/A dl->phone.alt = dl->phone.next = NULL; 134661SN/A dl->reconnect_tries = dl->cfg.reconnect.max; 135661SN/A dl->dial.tries = dl->cfg.dial.max; 1367636SN/A dl->dial.incs = 0; 1377636SN/A dl->script.run = 1; 1387636SN/A dl->script.packetmode = 1; 1397636SN/A if (!physical_SetMode(dl->physical, PHYS_BACKGROUND)) 1400SN/A log_Printf(LogERROR, "Oops - can't change mode to BACKGROUND (gulp) !\n"); 1410SN/A bundle_LinksRemoved(dl->bundle); 1427636SN/A /* if dial.timeout is < 0 (random), we don't override fsm.delay */ 1437636SN/A if (dl->cbcp.fsm.delay < dl->cfg.dial.timeout) 1440SN/A dl->cbcp.fsm.delay = dl->cfg.dial.timeout; 1457636SN/A datalink_StartDialTimer(dl, dl->cbcp.fsm.delay); 1460SN/A cbcp_Down(&dl->cbcp); 1470SN/A datalink_NewState(dl, DATALINK_OPENING); 1487636SN/A if (bundle_Phase(dl->bundle) == PHASE_DEAD || 1497636SN/A bundle_Phase(dl->bundle) == PHASE_TERMINATE) 1507636SN/A bundle_NewPhase(dl->bundle, PHASE_ESTABLISH); 1517636SN/A } else if (dl->bundle->CleaningUp || 1527636SN/A (dl->physical->type == PHYS_DIRECT) || 1537636SN/A ((!dl->dial.tries || (dl->dial.tries < 0 && !dl->reconnect_tries)) && 1540SN/A !(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)))) { 1550SN/A datalink_NewState(dl, DATALINK_CLOSED); 1560SN/A dl->dial.tries = -1; 1570SN/A dl->dial.incs = 0; 1580SN/A dl->reconnect_tries = 0; 1590SN/A bundle_LinkClosed(dl->bundle, dl); 160 if (!dl->bundle->CleaningUp && 161 !(dl->physical->type & (PHYS_DIRECT|PHYS_BACKGROUND|PHYS_FOREGROUND))) 162 datalink_StartDialTimer(dl, datalink_GetDialTimeout(dl)); 163 } else { 164 datalink_NewState(dl, DATALINK_OPENING); 165 if (bundle_Phase(dl->bundle) == PHASE_DEAD || 166 bundle_Phase(dl->bundle) == PHASE_TERMINATE) 167 bundle_NewPhase(dl->bundle, PHASE_ESTABLISH); 168 if (dl->dial.tries < 0) { 169 datalink_StartDialTimer(dl, dl->cfg.reconnect.timeout); 170 dl->dial.tries = dl->cfg.dial.max; 171 dl->dial.incs = 0; 172 dl->reconnect_tries--; 173 log_Printf(LogCHAT, "%s: Reconnect try %d of %d\n", 174 dl->name, dl->cfg.reconnect.max - dl->reconnect_tries, 175 dl->cfg.reconnect.max); 176 bundle_Notify(dl->bundle, EX_RECONNECT); 177 } else { 178 if (dl->phone.next == NULL) 179 datalink_StartDialTimer(dl, datalink_GetDialTimeout(dl)); 180 else 181 datalink_StartDialTimer(dl, dl->cfg.dial.next_timeout); 182 bundle_Notify(dl->bundle, EX_REDIAL); 183 } 184 } 185} 186 187const char * 188datalink_ChoosePhoneNumber(struct datalink *dl) 189{ 190 char *phone; 191 192 if (dl->phone.alt == NULL) { 193 if (dl->phone.next == NULL) { 194 strncpy(dl->phone.list, dl->cfg.phone.list, sizeof dl->phone.list - 1); 195 dl->phone.list[sizeof dl->phone.list - 1] = '\0'; 196 if (*dl->phone.list == '\0') 197 return ""; 198 dl->phone.next = dl->phone.list; 199 } 200 dl->phone.alt = strsep(&dl->phone.next, ":"); 201 } 202 phone = strsep(&dl->phone.alt, "|"); 203 dl->phone.chosen = *phone ? phone : "[NONE]"; 204 if (*phone) 205 log_Printf(LogCHAT, "Phone: %s\n", phone); 206 return phone; 207} 208 209static void 210datalink_LoginDone(struct datalink *dl) 211{ 212 chat_Finish(&dl->chat); 213 214 if (!dl->script.packetmode) { 215 dl->dial.tries = -1; 216 dl->dial.incs = 0; 217 datalink_NewState(dl, DATALINK_READY); 218 } else if (!physical_Raw(dl->physical)) { 219 dl->dial.tries = 0; 220 log_Printf(LogWARN, "datalink_LoginDone: Not connected.\n"); 221 if (dl->script.run) { 222 datalink_NewState(dl, DATALINK_LOGOUT); 223 if (!chat_Setup(&dl->chat, dl->cfg.script.logout, NULL)) 224 log_Printf(LogWARN, "Invalid logout script\n"); 225 } else { 226 physical_StopDeviceTimer(dl->physical); 227 if (dl->physical->type == PHYS_DEDICATED) 228 /* force a redial timeout */ 229 physical_Close(dl->physical); 230 datalink_HangupDone(dl); 231 } 232 } else { 233 dl->dial.tries = -1; 234 dl->dial.incs = 0; 235 236 hdlc_Init(&dl->physical->hdlc, &dl->physical->link.lcp); 237 async_Init(&dl->physical->async); 238 239 lcp_Setup(&dl->physical->link.lcp, dl->state == DATALINK_READY ? 240 0 : dl->physical->link.lcp.cfg.openmode); 241 ccp_Setup(&dl->physical->link.ccp); 242 243 datalink_NewState(dl, DATALINK_LCP); 244 fsm_Up(&dl->physical->link.lcp.fsm); 245 fsm_Open(&dl->physical->link.lcp.fsm); 246 } 247} 248 249static int 250datalink_UpdateSet(struct fdescriptor *d, fd_set *r, fd_set *w, fd_set *e, 251 int *n) 252{ 253 struct datalink *dl = descriptor2datalink(d); 254 int result; 255 256 result = 0; 257 switch (dl->state) { 258 case DATALINK_CLOSED: 259 if ((dl->physical->type & (PHYS_DIRECT|PHYS_DEDICATED|PHYS_BACKGROUND| 260 PHYS_FOREGROUND|PHYS_DDIAL)) && 261 !dl->bundle->CleaningUp) 262 /* 263 * Our first time in - DEDICATED & DDIAL never come down, and 264 * DIRECT, FOREGROUND & BACKGROUND get deleted when they enter 265 * DATALINK_CLOSED. Go to DATALINK_OPENING via datalink_Up() 266 * and fall through. 267 */ 268 datalink_Up(dl, 1, 1); 269 else 270 break; 271 /* fall through */ 272 273 case DATALINK_OPENING: 274 if (dl->dial.timer.state != TIMER_RUNNING) { 275 if (--dl->dial.tries < 0) 276 dl->dial.tries = 0; 277 if (physical_Open(dl->physical, dl->bundle) >= 0) { 278 log_WritePrompts(dl, "%s: Entering terminal mode on %s\r\n" 279 "Type `~?' for help\r\n", dl->name, 280 dl->physical->name.full); 281 if (dl->script.run) { 282 datalink_NewState(dl, DATALINK_DIAL); 283 if (!chat_Setup(&dl->chat, dl->cfg.script.dial, 284 *dl->cfg.script.dial ? 285 datalink_ChoosePhoneNumber(dl) : "")) 286 log_Printf(LogWARN, "Invalid dial script\n"); 287 if (!(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)) && 288 dl->cfg.dial.max) 289 log_Printf(LogCHAT, "%s: Dial attempt %u of %d\n", 290 dl->name, dl->cfg.dial.max - dl->dial.tries, 291 dl->cfg.dial.max); 292 } else 293 datalink_NewState(dl, DATALINK_CARRIER); 294 return datalink_UpdateSet(d, r, w, e, n); 295 } else { 296 if (!(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)) && 297 dl->cfg.dial.max) 298 log_Printf(LogCHAT, "Failed to open device (attempt %u of %d)\n", 299 dl->cfg.dial.max - dl->dial.tries, dl->cfg.dial.max); 300 else 301 log_Printf(LogCHAT, "Failed to open device\n"); 302 303 if (dl->bundle->CleaningUp || 304 (!(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)) && 305 dl->cfg.dial.max && dl->dial.tries == 0)) { 306 datalink_NewState(dl, DATALINK_CLOSED); 307 dl->reconnect_tries = 0; 308 dl->dial.tries = -1; 309 log_WritePrompts(dl, "Failed to open %s\n", 310 dl->physical->name.full); 311 bundle_LinkClosed(dl->bundle, dl); 312 } 313 if (!dl->bundle->CleaningUp) { 314 int timeout; 315 316 timeout = datalink_StartDialTimer(dl, datalink_GetDialTimeout(dl)); 317 bundle_Notify(dl->bundle, EX_REDIAL); 318 log_WritePrompts(dl, "Failed to open %s, pause %d seconds\n", 319 dl->physical->name.full, timeout); 320 } 321 } 322 } 323 break; 324 325 case DATALINK_CARRIER: 326 /* Wait for carrier on the device */ 327 switch (physical_AwaitCarrier(dl->physical)) { 328 case CARRIER_PENDING: 329 log_Printf(LogDEBUG, "Waiting for carrier\n"); 330 return 0; /* A device timer is running to wake us up again */ 331 332 case CARRIER_OK: 333 if (dl->script.run) { 334 datalink_NewState(dl, DATALINK_LOGIN); 335 if (!chat_Setup(&dl->chat, dl->cfg.script.login, NULL)) 336 log_Printf(LogWARN, "Invalid login script\n"); 337 } else 338 datalink_LoginDone(dl); 339 return datalink_UpdateSet(d, r, w, e, n); 340 341 case CARRIER_LOST: 342 physical_Offline(dl->physical); /* Is this required ? */ 343 if (dl->script.run) { 344 datalink_NewState(dl, DATALINK_HANGUP); 345 if (!chat_Setup(&dl->chat, dl->cfg.script.hangup, NULL)) 346 log_Printf(LogWARN, "Invalid hangup script\n"); 347 return datalink_UpdateSet(d, r, w, e, n); 348 } else { 349 datalink_HangupDone(dl); 350 return 0; /* Maybe bundle_CleanDatalinks() has something to do */ 351 } 352 } 353 354 case DATALINK_HANGUP: 355 case DATALINK_DIAL: 356 case DATALINK_LOGOUT: 357 case DATALINK_LOGIN: 358 result = descriptor_UpdateSet(&dl->chat.desc, r, w, e, n); 359 switch (dl->chat.state) { 360 case CHAT_DONE: 361 /* script succeeded */ 362 switch(dl->state) { 363 case DATALINK_HANGUP: 364 datalink_HangupDone(dl); 365 break; 366 case DATALINK_DIAL: 367 datalink_NewState(dl, DATALINK_CARRIER); 368 return datalink_UpdateSet(d, r, w, e, n); 369 case DATALINK_LOGOUT: 370 datalink_NewState(dl, DATALINK_HANGUP); 371 physical_Offline(dl->physical); 372 if (!chat_Setup(&dl->chat, dl->cfg.script.hangup, NULL)) 373 log_Printf(LogWARN, "Invalid hangup script\n"); 374 return datalink_UpdateSet(d, r, w, e, n); 375 case DATALINK_LOGIN: 376 dl->phone.alt = NULL; 377 datalink_LoginDone(dl); 378 return datalink_UpdateSet(d, r, w, e, n); 379 } 380 break; 381 case CHAT_FAILED: 382 /* Going down - script failed */ 383 log_Printf(LogWARN, "Chat script failed\n"); 384 switch(dl->state) { 385 case DATALINK_HANGUP: 386 datalink_HangupDone(dl); 387 break; 388 case DATALINK_DIAL: 389 case DATALINK_LOGOUT: 390 case DATALINK_LOGIN: 391 datalink_NewState(dl, DATALINK_HANGUP); 392 physical_Offline(dl->physical); 393 if (!chat_Setup(&dl->chat, dl->cfg.script.hangup, NULL)) 394 log_Printf(LogWARN, "Invalid hangup script\n"); 395 return datalink_UpdateSet(d, r, w, e, n); 396 } 397 break; 398 } 399 break; 400 401 case DATALINK_READY: 402 case DATALINK_LCP: 403 case DATALINK_AUTH: 404 case DATALINK_CBCP: 405 case DATALINK_OPEN: 406 result = descriptor_UpdateSet(&dl->chap.desc, r, w, e, n) + 407 descriptor_UpdateSet(&dl->physical->desc, r, w, e, n); 408 break; 409 } 410 return result; 411} 412 413int 414datalink_RemoveFromSet(struct datalink *dl, fd_set *r, fd_set *w, fd_set *e) 415{ 416 return physical_RemoveFromSet(dl->physical, r, w, e); 417} 418 419static int 420datalink_IsSet(struct fdescriptor *d, const fd_set *fdset) 421{ 422 struct datalink *dl = descriptor2datalink(d); 423 424 switch (dl->state) { 425 case DATALINK_CLOSED: 426 case DATALINK_OPENING: 427 break; 428 429 case DATALINK_HANGUP: 430 case DATALINK_DIAL: 431 case DATALINK_LOGOUT: 432 case DATALINK_LOGIN: 433 return descriptor_IsSet(&dl->chat.desc, fdset); 434 435 case DATALINK_READY: 436 case DATALINK_LCP: 437 case DATALINK_AUTH: 438 case DATALINK_CBCP: 439 case DATALINK_OPEN: 440 return descriptor_IsSet(&dl->chap.desc, fdset) ? 1 : 441 descriptor_IsSet(&dl->physical->desc, fdset); 442 } 443 return 0; 444} 445 446static void 447datalink_Read(struct fdescriptor *d, struct bundle *bundle, const fd_set *fdset) 448{ 449 struct datalink *dl = descriptor2datalink(d); 450 451 switch (dl->state) { 452 case DATALINK_CLOSED: 453 case DATALINK_OPENING: 454 break; 455 456 case DATALINK_HANGUP: 457 case DATALINK_DIAL: 458 case DATALINK_LOGOUT: 459 case DATALINK_LOGIN: 460 descriptor_Read(&dl->chat.desc, bundle, fdset); 461 break; 462 463 case DATALINK_READY: 464 case DATALINK_LCP: 465 case DATALINK_AUTH: 466 case DATALINK_CBCP: 467 case DATALINK_OPEN: 468 if (descriptor_IsSet(&dl->chap.desc, fdset)) 469 descriptor_Read(&dl->chap.desc, bundle, fdset); 470 if (descriptor_IsSet(&dl->physical->desc, fdset)) 471 descriptor_Read(&dl->physical->desc, bundle, fdset); 472 break; 473 } 474} 475 476static int 477datalink_Write(struct fdescriptor *d, struct bundle *bundle, 478 const fd_set *fdset) 479{ 480 struct datalink *dl = descriptor2datalink(d); 481 int result = 0; 482 483 switch (dl->state) { 484 case DATALINK_CLOSED: 485 case DATALINK_OPENING: 486 break; 487 488 case DATALINK_HANGUP: 489 case DATALINK_DIAL: 490 case DATALINK_LOGOUT: 491 case DATALINK_LOGIN: 492 result = descriptor_Write(&dl->chat.desc, bundle, fdset); 493 break; 494 495 case DATALINK_READY: 496 case DATALINK_LCP: 497 case DATALINK_AUTH: 498 case DATALINK_CBCP: 499 case DATALINK_OPEN: 500 if (descriptor_IsSet(&dl->chap.desc, fdset)) 501 result += descriptor_Write(&dl->chap.desc, bundle, fdset); 502 if (descriptor_IsSet(&dl->physical->desc, fdset)) 503 result += descriptor_Write(&dl->physical->desc, bundle, fdset); 504 break; 505 } 506 507 return result; 508} 509 510static void 511datalink_ComeDown(struct datalink *dl, int how) 512{ 513 if (how != CLOSE_NORMAL) { 514 dl->dial.tries = -1; 515 dl->reconnect_tries = 0; 516 if (dl->state >= DATALINK_READY && how == CLOSE_LCP) 517 dl->stayonline = 1; 518 } 519 520 if (dl->state >= DATALINK_READY && dl->stayonline) { 521 dl->stayonline = 0; 522 physical_StopDeviceTimer(dl->physical); 523 datalink_NewState(dl, DATALINK_READY); 524 } else if (dl->state != DATALINK_CLOSED && dl->state != DATALINK_HANGUP) { 525 physical_Offline(dl->physical); 526 if (dl->script.run && dl->state != DATALINK_OPENING) { 527 if (dl->state == DATALINK_LOGOUT) { 528 datalink_NewState(dl, DATALINK_HANGUP); 529 if (!chat_Setup(&dl->chat, dl->cfg.script.hangup, NULL)) 530 log_Printf(LogWARN, "Invalid hangup script\n"); 531 } else { 532 datalink_NewState(dl, DATALINK_LOGOUT); 533 if (!chat_Setup(&dl->chat, dl->cfg.script.logout, NULL)) 534 log_Printf(LogWARN, "Invalid logout script\n"); 535 } 536 } else 537 datalink_HangupDone(dl); 538 } 539} 540 541static void 542datalink_LayerStart(void *v, struct fsm *fp) 543{ 544 /* The given FSM is about to start up ! */ 545 struct datalink *dl = (struct datalink *)v; 546 547 if (fp->proto == PROTO_LCP) 548 (*dl->parent->LayerStart)(dl->parent->object, fp); 549} 550 551static void 552datalink_LayerUp(void *v, struct fsm *fp) 553{ 554 /* The given fsm is now up */ 555 struct datalink *dl = (struct datalink *)v; 556 struct lcp *lcp = &dl->physical->link.lcp; 557 558 if (fp->proto == PROTO_LCP) { 559 datalink_GotAuthname(dl, ""); 560 lcp->auth_ineed = lcp->want_auth; 561 lcp->auth_iwait = lcp->his_auth; 562 if (lcp->his_auth || lcp->want_auth) { 563 if (bundle_Phase(dl->bundle) != PHASE_NETWORK) 564 bundle_NewPhase(dl->bundle, PHASE_AUTHENTICATE); 565 log_Printf(LogPHASE, "%s: his = %s, mine = %s\n", dl->name, 566 Auth2Nam(lcp->his_auth, lcp->his_authtype), 567 Auth2Nam(lcp->want_auth, lcp->want_authtype)); 568 if (lcp->his_auth == PROTO_PAP) 569 auth_StartReq(&dl->pap); 570 if (lcp->want_auth == PROTO_CHAP) 571 auth_StartReq(&dl->chap.auth); 572 } else 573 datalink_AuthOk(dl); 574 } 575} 576 577static void 578datalink_AuthReInit(struct datalink *dl) 579{ 580 auth_StopTimer(&dl->pap); 581 auth_StopTimer(&dl->chap.auth); 582 chap_ReInit(&dl->chap); 583} 584 585void 586datalink_GotAuthname(struct datalink *dl, const char *name) 587{ 588 strncpy(dl->peer.authname, name, sizeof dl->peer.authname - 1); 589 dl->peer.authname[sizeof dl->peer.authname - 1] = '\0'; 590} 591 592void 593datalink_NCPUp(struct datalink *dl) 594{ 595 int ccpok = ccp_SetOpenMode(&dl->physical->link.ccp); 596 597 if (dl->physical->link.lcp.want_mrru && dl->physical->link.lcp.his_mrru) { 598 /* we've authenticated in multilink mode ! */ 599 switch (mp_Up(&dl->bundle->ncp.mp, dl)) { 600 case MP_LINKSENT: 601 /* We've handed the link off to another ppp (well, we will soon) ! */ 602 return; 603 case MP_UP: 604 /* First link in the bundle */ 605 auth_Select(dl->bundle, dl->peer.authname); 606 bundle_CalculateBandwidth(dl->bundle); 607 /* fall through */ 608 case MP_ADDED: 609 /* We're in multilink mode ! */ 610 dl->physical->link.ccp.fsm.open_mode = OPEN_PASSIVE; /* override */ 611 bundle_CalculateBandwidth(dl->bundle); 612 break; 613 case MP_FAILED: 614 datalink_AuthNotOk(dl); 615 return; 616 } 617 } else if (bundle_Phase(dl->bundle) == PHASE_NETWORK) { 618 log_Printf(LogPHASE, "%s: Already in NETWORK phase\n", dl->name); 619 datalink_NewState(dl, DATALINK_OPEN); 620 bundle_CalculateBandwidth(dl->bundle); 621 (*dl->parent->LayerUp)(dl->parent->object, &dl->physical->link.lcp.fsm); 622 return; 623 } else { 624 dl->bundle->ncp.mp.peer = dl->peer; 625 ipcp_SetLink(&dl->bundle->ncp.ipcp, &dl->physical->link); 626 auth_Select(dl->bundle, dl->peer.authname); 627 } 628 629 if (ccpok) { 630 fsm_Up(&dl->physical->link.ccp.fsm); 631 fsm_Open(&dl->physical->link.ccp.fsm); 632 } 633 datalink_NewState(dl, DATALINK_OPEN); 634 bundle_NewPhase(dl->bundle, PHASE_NETWORK); 635 (*dl->parent->LayerUp)(dl->parent->object, &dl->physical->link.lcp.fsm); 636} 637 638void 639datalink_CBCPComplete(struct datalink *dl) 640{ 641 datalink_NewState(dl, DATALINK_LCP); 642 datalink_AuthReInit(dl); 643 fsm_Close(&dl->physical->link.lcp.fsm); 644} 645 646void 647datalink_CBCPFailed(struct datalink *dl) 648{ 649 cbcp_Down(&dl->cbcp); 650 datalink_CBCPComplete(dl); 651} 652 653void 654datalink_AuthOk(struct datalink *dl) 655{ 656 if ((dl->physical->link.lcp.his_callback.opmask & 657 CALLBACK_BIT(CALLBACK_CBCP) || 658 dl->physical->link.lcp.want_callback.opmask & 659 CALLBACK_BIT(CALLBACK_CBCP)) && 660 !(dl->physical->link.lcp.want_callback.opmask & 661 CALLBACK_BIT(CALLBACK_AUTH))) { 662 /* We must have agreed CBCP if AUTH isn't there any more */ 663 datalink_NewState(dl, DATALINK_CBCP); 664 cbcp_Up(&dl->cbcp); 665 } else if (dl->physical->link.lcp.want_callback.opmask) { 666 /* It's not CBCP */ 667 log_Printf(LogPHASE, "%s: Shutdown and await peer callback\n", dl->name); 668 datalink_NewState(dl, DATALINK_LCP); 669 datalink_AuthReInit(dl); 670 fsm_Close(&dl->physical->link.lcp.fsm); 671 } else 672 switch (dl->physical->link.lcp.his_callback.opmask) { 673 case 0: 674 datalink_NCPUp(dl); 675 break; 676 677 case CALLBACK_BIT(CALLBACK_AUTH): 678 auth_SetPhoneList(dl->peer.authname, dl->cbcp.fsm.phone, 679 sizeof dl->cbcp.fsm.phone); 680 if (*dl->cbcp.fsm.phone == '\0' || !strcmp(dl->cbcp.fsm.phone, "*")) { 681 log_Printf(LogPHASE, "%s: %s cannot be called back\n", dl->name, 682 dl->peer.authname); 683 *dl->cbcp.fsm.phone = '\0'; 684 } else { 685 char *ptr = strchr(dl->cbcp.fsm.phone, ','); 686 if (ptr) 687 *ptr = '\0'; /* Call back on the first number */ 688 log_Printf(LogPHASE, "%s: Calling peer back on %s\n", dl->name, 689 dl->cbcp.fsm.phone); 690 dl->cbcp.required = 1; 691 } 692 dl->cbcp.fsm.delay = 0; 693 datalink_NewState(dl, DATALINK_LCP); 694 datalink_AuthReInit(dl); 695 fsm_Close(&dl->physical->link.lcp.fsm); 696 break; 697 698 case CALLBACK_BIT(CALLBACK_E164): 699 strncpy(dl->cbcp.fsm.phone, dl->physical->link.lcp.his_callback.msg, 700 sizeof dl->cbcp.fsm.phone - 1); 701 dl->cbcp.fsm.phone[sizeof dl->cbcp.fsm.phone - 1] = '\0'; 702 log_Printf(LogPHASE, "%s: Calling peer back on %s\n", dl->name, 703 dl->cbcp.fsm.phone); 704 dl->cbcp.required = 1; 705 dl->cbcp.fsm.delay = 0; 706 datalink_NewState(dl, DATALINK_LCP); 707 datalink_AuthReInit(dl); 708 fsm_Close(&dl->physical->link.lcp.fsm); 709 break; 710 711 default: 712 log_Printf(LogPHASE, "%s: Oops - Should have NAK'd peer callback !\n", 713 dl->name); 714 datalink_NewState(dl, DATALINK_LCP); 715 datalink_AuthReInit(dl); 716 fsm_Close(&dl->physical->link.lcp.fsm); 717 break; 718 } 719} 720 721void 722datalink_AuthNotOk(struct datalink *dl) 723{ 724 datalink_NewState(dl, DATALINK_LCP); 725 datalink_AuthReInit(dl); 726 fsm_Close(&dl->physical->link.lcp.fsm); 727} 728 729static void 730datalink_LayerDown(void *v, struct fsm *fp) 731{ 732 /* The given FSM has been told to come down */ 733 struct datalink *dl = (struct datalink *)v; 734 735 if (fp->proto == PROTO_LCP) { 736 switch (dl->state) { 737 case DATALINK_OPEN: 738 peerid_Init(&dl->peer); 739 fsm2initial(&dl->physical->link.ccp.fsm); 740 datalink_NewState(dl, DATALINK_LCP); /* before parent TLD */ 741 (*dl->parent->LayerDown)(dl->parent->object, fp); 742 /* fall through (just in case) */ 743 744 case DATALINK_CBCP: 745 if (!dl->cbcp.required) 746 cbcp_Down(&dl->cbcp); 747 /* fall through (just in case) */ 748 749 case DATALINK_AUTH: 750 timer_Stop(&dl->pap.authtimer); 751 timer_Stop(&dl->chap.auth.authtimer); 752 } 753 datalink_NewState(dl, DATALINK_LCP); 754 datalink_AuthReInit(dl); 755 } 756} 757 758static void 759datalink_LayerFinish(void *v, struct fsm *fp) 760{ 761 /* The given fsm is now down */ 762 struct datalink *dl = (struct datalink *)v; 763 764 if (fp->proto == PROTO_LCP) { 765 fsm2initial(fp); 766 (*dl->parent->LayerFinish)(dl->parent->object, fp); 767 datalink_ComeDown(dl, CLOSE_NORMAL); 768 } else if (fp->state == ST_CLOSED && fp->open_mode == OPEN_PASSIVE) 769 fsm_Open(fp); /* CCP goes to ST_STOPPED */ 770} 771 772struct datalink * 773datalink_Create(const char *name, struct bundle *bundle, int type) 774{ 775 struct datalink *dl; 776 777 dl = (struct datalink *)malloc(sizeof(struct datalink)); 778 if (dl == NULL) 779 return dl; 780 781 dl->desc.type = DATALINK_DESCRIPTOR; 782 dl->desc.UpdateSet = datalink_UpdateSet; 783 dl->desc.IsSet = datalink_IsSet; 784 dl->desc.Read = datalink_Read; 785 dl->desc.Write = datalink_Write; 786 787 dl->state = DATALINK_CLOSED; 788 789 *dl->cfg.script.dial = '\0'; 790 *dl->cfg.script.login = '\0'; 791 *dl->cfg.script.logout = '\0'; 792 *dl->cfg.script.hangup = '\0'; 793 *dl->cfg.phone.list = '\0'; 794 *dl->phone.list = '\0'; 795 dl->phone.next = NULL; 796 dl->phone.alt = NULL; 797 dl->phone.chosen = "N/A"; 798 dl->stayonline = 0; 799 dl->script.run = 1; 800 dl->script.packetmode = 1; 801 mp_linkInit(&dl->mp); 802 803 dl->bundle = bundle; 804 dl->next = NULL; 805 806 memset(&dl->dial.timer, '\0', sizeof dl->dial.timer); 807 808 dl->dial.tries = 0; 809 dl->cfg.dial.max = 1; 810 dl->cfg.dial.next_timeout = DIAL_NEXT_TIMEOUT; 811 dl->cfg.dial.timeout = DIAL_TIMEOUT; 812 dl->cfg.dial.inc = 0; 813 dl->cfg.dial.maxinc = 10; 814 815 dl->reconnect_tries = 0; 816 dl->cfg.reconnect.max = 0; 817 dl->cfg.reconnect.timeout = RECONNECT_TIMEOUT; 818 819 dl->cfg.callback.opmask = 0; 820 dl->cfg.cbcp.delay = 0; 821 *dl->cfg.cbcp.phone = '\0'; 822 dl->cfg.cbcp.fsmretry = DEF_FSMRETRY; 823 824 dl->name = strdup(name); 825 peerid_Init(&dl->peer); 826 dl->parent = &bundle->fsm; 827 dl->fsmp.LayerStart = datalink_LayerStart; 828 dl->fsmp.LayerUp = datalink_LayerUp; 829 dl->fsmp.LayerDown = datalink_LayerDown; 830 dl->fsmp.LayerFinish = datalink_LayerFinish; 831 dl->fsmp.object = dl; 832 833 if ((dl->physical = physical_Create(dl, type)) == NULL) { 834 free(dl->name); 835 free(dl); 836 return NULL; 837 } 838 839 pap_Init(&dl->pap, dl->physical); 840 chap_Init(&dl->chap, dl->physical); 841 cbcp_Init(&dl->cbcp, dl->physical); 842 843 memset(&dl->chat, '\0', sizeof dl->chat); /* Force buf{start,end} reset */ 844 chat_Init(&dl->chat, dl->physical); 845 846 log_Printf(LogPHASE, "%s: Created in %s state\n", 847 dl->name, datalink_State(dl)); 848 849 return dl; 850} 851 852struct datalink * 853datalink_Clone(struct datalink *odl, const char *name) 854{ 855 struct datalink *dl; 856 857 dl = (struct datalink *)malloc(sizeof(struct datalink)); 858 if (dl == NULL) 859 return dl; 860 861 dl->desc.type = DATALINK_DESCRIPTOR; 862 dl->desc.UpdateSet = datalink_UpdateSet; 863 dl->desc.IsSet = datalink_IsSet; 864 dl->desc.Read = datalink_Read; 865 dl->desc.Write = datalink_Write; 866 867 dl->state = DATALINK_CLOSED; 868 869 memcpy(&dl->cfg, &odl->cfg, sizeof dl->cfg); 870 mp_linkInit(&dl->mp); 871 *dl->phone.list = '\0'; 872 dl->phone.next = NULL; 873 dl->phone.alt = NULL; 874 dl->phone.chosen = "N/A"; 875 dl->bundle = odl->bundle; 876 dl->next = NULL; 877 memset(&dl->dial.timer, '\0', sizeof dl->dial.timer); 878 dl->dial.tries = 0; 879 dl->reconnect_tries = 0; 880 dl->name = strdup(name); 881 peerid_Init(&dl->peer); 882 dl->parent = odl->parent; 883 memcpy(&dl->fsmp, &odl->fsmp, sizeof dl->fsmp); 884 dl->fsmp.object = dl; 885 886 if ((dl->physical = physical_Create(dl, PHYS_INTERACTIVE)) == NULL) { 887 free(dl->name); 888 free(dl); 889 return NULL; 890 } 891 pap_Init(&dl->pap, dl->physical); 892 dl->pap.cfg = odl->pap.cfg; 893 894 chap_Init(&dl->chap, dl->physical); 895 dl->chap.auth.cfg = odl->chap.auth.cfg; 896 897 memcpy(&dl->physical->cfg, &odl->physical->cfg, sizeof dl->physical->cfg); 898 memcpy(&dl->physical->link.lcp.cfg, &odl->physical->link.lcp.cfg, 899 sizeof dl->physical->link.lcp.cfg); 900 memcpy(&dl->physical->link.ccp.cfg, &odl->physical->link.ccp.cfg, 901 sizeof dl->physical->link.ccp.cfg); 902 memcpy(&dl->physical->async.cfg, &odl->physical->async.cfg, 903 sizeof dl->physical->async.cfg); 904 905 cbcp_Init(&dl->cbcp, dl->physical); 906 907 memset(&dl->chat, '\0', sizeof dl->chat); /* Force buf{start,end} reset */ 908 chat_Init(&dl->chat, dl->physical); 909 910 log_Printf(LogPHASE, "%s: Cloned in %s state\n", 911 dl->name, datalink_State(dl)); 912 913 return dl; 914} 915 916struct datalink * 917datalink_Destroy(struct datalink *dl) 918{ 919 struct datalink *result; 920 921 if (dl->state != DATALINK_CLOSED) { 922 log_Printf(LogERROR, "Oops, destroying a datalink in state %s\n", 923 datalink_State(dl)); 924 switch (dl->state) { 925 case DATALINK_HANGUP: 926 case DATALINK_DIAL: 927 case DATALINK_LOGIN: 928 chat_Finish(&dl->chat); /* Gotta blat the timers ! */ 929 break; 930 } 931 } 932 933 chat_Destroy(&dl->chat); 934 timer_Stop(&dl->dial.timer); 935 result = dl->next; 936 physical_Destroy(dl->physical); 937 free(dl->name); 938 free(dl); 939 940 return result; 941} 942 943void 944datalink_Up(struct datalink *dl, int runscripts, int packetmode) 945{ 946 if (dl->physical->type & (PHYS_DIRECT|PHYS_DEDICATED)) 947 /* Ignore scripts */ 948 runscripts = 0; 949 950 switch (dl->state) { 951 case DATALINK_CLOSED: 952 if (bundle_Phase(dl->bundle) == PHASE_DEAD || 953 bundle_Phase(dl->bundle) == PHASE_TERMINATE) 954 bundle_NewPhase(dl->bundle, PHASE_ESTABLISH); 955 datalink_NewState(dl, DATALINK_OPENING); 956 dl->reconnect_tries = 957 dl->physical->type == PHYS_DIRECT ? 0 : dl->cfg.reconnect.max; 958 dl->dial.tries = dl->cfg.dial.max; 959 dl->script.run = runscripts; 960 dl->script.packetmode = packetmode; 961 break; 962 963 case DATALINK_OPENING: 964 if (!dl->script.run && runscripts) 965 dl->script.run = 1; 966 /* fall through */ 967 968 case DATALINK_DIAL: 969 case DATALINK_LOGIN: 970 case DATALINK_READY: 971 if (!dl->script.packetmode && packetmode) { 972 dl->script.packetmode = 1; 973 if (dl->state == DATALINK_READY) { 974 dl->script.run = 0; 975 datalink_NewState(dl, DATALINK_CARRIER); 976 } 977 } 978 break; 979 } 980} 981 982void 983datalink_Close(struct datalink *dl, int how) 984{ 985 /* Please close */ 986 switch (dl->state) { 987 case DATALINK_OPEN: 988 peerid_Init(&dl->peer); 989 fsm2initial(&dl->physical->link.ccp.fsm); 990 /* fall through */ 991 992 case DATALINK_CBCP: 993 case DATALINK_AUTH: 994 case DATALINK_LCP: 995 datalink_AuthReInit(dl); 996 fsm_Close(&dl->physical->link.lcp.fsm); 997 if (how != CLOSE_NORMAL) { 998 dl->dial.tries = -1; 999 dl->reconnect_tries = 0; 1000 if (how == CLOSE_LCP) 1001 dl->stayonline = 1; 1002 } 1003 break; 1004 1005 default: 1006 datalink_ComeDown(dl, how); 1007 } 1008} 1009 1010void 1011datalink_Down(struct datalink *dl, int how) 1012{ 1013 /* Carrier is lost */ 1014 switch (dl->state) { 1015 case DATALINK_OPEN: 1016 peerid_Init(&dl->peer); 1017 fsm2initial(&dl->physical->link.ccp.fsm); 1018 /* fall through */ 1019 1020 case DATALINK_CBCP: 1021 case DATALINK_AUTH: 1022 case DATALINK_LCP: 1023 fsm2initial(&dl->physical->link.lcp.fsm); 1024 if (dl->state == DATALINK_OPENING) 1025 return; /* we're doing a callback... */ 1026 /* fall through */ 1027 1028 default: 1029 datalink_ComeDown(dl, how); 1030 } 1031} 1032 1033void 1034datalink_StayDown(struct datalink *dl) 1035{ 1036 dl->reconnect_tries = 0; 1037} 1038 1039void 1040datalink_DontHangup(struct datalink *dl) 1041{ 1042 if (dl->state >= DATALINK_LCP) 1043 dl->stayonline = 1; 1044} 1045 1046int 1047datalink_Show(struct cmdargs const *arg) 1048{ 1049 prompt_Printf(arg->prompt, "Name: %s\n", arg->cx->name); 1050 prompt_Printf(arg->prompt, " State: %s\n", 1051 datalink_State(arg->cx)); 1052 prompt_Printf(arg->prompt, " Peer name: "); 1053 if (*arg->cx->peer.authname) 1054 prompt_Printf(arg->prompt, "%s\n", arg->cx->peer.authname); 1055 else if (arg->cx->state == DATALINK_OPEN) 1056 prompt_Printf(arg->prompt, "None requested\n"); 1057 else 1058 prompt_Printf(arg->prompt, "N/A\n"); 1059 prompt_Printf(arg->prompt, " Discriminator: %s\n", 1060 mp_Enddisc(arg->cx->peer.enddisc.class, 1061 arg->cx->peer.enddisc.address, 1062 arg->cx->peer.enddisc.len)); 1063 1064 prompt_Printf(arg->prompt, "\nDefaults:\n"); 1065 prompt_Printf(arg->prompt, " Phone List: %s\n", 1066 arg->cx->cfg.phone.list); 1067 if (arg->cx->cfg.dial.max) 1068 prompt_Printf(arg->prompt, " Dial tries: %d, delay ", 1069 arg->cx->cfg.dial.max); 1070 else 1071 prompt_Printf(arg->prompt, " Dial tries: infinite, delay "); 1072 if (arg->cx->cfg.dial.next_timeout >= 0) 1073 prompt_Printf(arg->prompt, "%ds/", arg->cx->cfg.dial.next_timeout); 1074 else 1075 prompt_Printf(arg->prompt, "random/"); 1076 if (arg->cx->cfg.dial.timeout >= 0) 1077 prompt_Printf(arg->prompt, "%ds\n", arg->cx->cfg.dial.timeout); 1078 else 1079 prompt_Printf(arg->prompt, "random\n"); 1080 prompt_Printf(arg->prompt, " Reconnect tries: %d, delay ", 1081 arg->cx->cfg.reconnect.max); 1082 if (arg->cx->cfg.reconnect.timeout > 0) 1083 prompt_Printf(arg->prompt, "%ds\n", arg->cx->cfg.reconnect.timeout); 1084 else 1085 prompt_Printf(arg->prompt, "random\n"); 1086 prompt_Printf(arg->prompt, " Callback %s ", arg->cx->physical->type == 1087 PHYS_DIRECT ? "accepted: " : "requested:"); 1088 if (!arg->cx->cfg.callback.opmask) 1089 prompt_Printf(arg->prompt, "none\n"); 1090 else { 1091 int comma = 0; 1092 1093 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_NONE)) { 1094 prompt_Printf(arg->prompt, "none"); 1095 comma = 1; 1096 } 1097 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_AUTH)) { 1098 prompt_Printf(arg->prompt, "%sauth", comma ? ", " : ""); 1099 comma = 1; 1100 } 1101 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_E164)) { 1102 prompt_Printf(arg->prompt, "%sE.164", comma ? ", " : ""); 1103 if (arg->cx->physical->type != PHYS_DIRECT) 1104 prompt_Printf(arg->prompt, " (%s)", arg->cx->cfg.callback.msg); 1105 comma = 1; 1106 } 1107 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_CBCP)) { 1108 prompt_Printf(arg->prompt, "%scbcp\n", comma ? ", " : ""); 1109 prompt_Printf(arg->prompt, " CBCP: delay: %ds\n", 1110 arg->cx->cfg.cbcp.delay); 1111 prompt_Printf(arg->prompt, " phone: "); 1112 if (!strcmp(arg->cx->cfg.cbcp.phone, "*")) { 1113 if (arg->cx->physical->type & PHYS_DIRECT) 1114 prompt_Printf(arg->prompt, "Caller decides\n"); 1115 else 1116 prompt_Printf(arg->prompt, "Dialback server decides\n"); 1117 } else 1118 prompt_Printf(arg->prompt, "%s\n", arg->cx->cfg.cbcp.phone); 1119 prompt_Printf(arg->prompt, " timeout: %lds\n", 1120 arg->cx->cfg.cbcp.fsmretry); 1121 } else 1122 prompt_Printf(arg->prompt, "\n"); 1123 } 1124 1125 prompt_Printf(arg->prompt, " Dial Script: %s\n", 1126 arg->cx->cfg.script.dial); 1127 prompt_Printf(arg->prompt, " Login Script: %s\n", 1128 arg->cx->cfg.script.login); 1129 prompt_Printf(arg->prompt, " Logout Script: %s\n", 1130 arg->cx->cfg.script.logout); 1131 prompt_Printf(arg->prompt, " Hangup Script: %s\n", 1132 arg->cx->cfg.script.hangup); 1133 return 0; 1134} 1135 1136int 1137datalink_SetReconnect(struct cmdargs const *arg) 1138{ 1139 if (arg->argc == arg->argn+2) { 1140 arg->cx->cfg.reconnect.timeout = atoi(arg->argv[arg->argn]); 1141 arg->cx->cfg.reconnect.max = atoi(arg->argv[arg->argn+1]); 1142 return 0; 1143 } 1144 return -1; 1145} 1146 1147int 1148datalink_SetRedial(struct cmdargs const *arg) 1149{ 1150 const char *sep, *osep; 1151 int timeout, inc, maxinc, tries; 1152 1153 if (arg->argc == arg->argn+1 || arg->argc == arg->argn+2) { 1154 if (strncasecmp(arg->argv[arg->argn], "random", 6) == 0 && 1155 (arg->argv[arg->argn][6] == '\0' || arg->argv[arg->argn][6] == '.')) { 1156 arg->cx->cfg.dial.timeout = -1; 1157 randinit(); 1158 } else { 1159 timeout = atoi(arg->argv[arg->argn]); 1160 1161 if (timeout >= 0) 1162 arg->cx->cfg.dial.timeout = timeout; 1163 else { 1164 log_Printf(LogWARN, "Invalid redial timeout\n"); 1165 return -1; 1166 } 1167 } 1168 1169 sep = strchr(arg->argv[arg->argn], '+'); 1170 if (sep) { 1171 inc = atoi(++sep); 1172 osep = sep; 1173 if (inc >= 0) 1174 arg->cx->cfg.dial.inc = inc; 1175 else { 1176 log_Printf(LogWARN, "Invalid timeout increment\n"); 1177 return -1; 1178 } 1179 sep = strchr(sep, '-'); 1180 if (sep) { 1181 maxinc = atoi(++sep); 1182 if (maxinc >= 0) 1183 arg->cx->cfg.dial.maxinc = maxinc; 1184 else { 1185 log_Printf(LogWARN, "Invalid maximum timeout increments\n"); 1186 return -1; 1187 } 1188 } else { 1189 /* Default timeout increment */ 1190 arg->cx->cfg.dial.maxinc = 10; 1191 sep = osep; 1192 } 1193 } else { 1194 /* Default timeout increment & max increment */ 1195 arg->cx->cfg.dial.inc = 0; 1196 arg->cx->cfg.dial.maxinc = 10; 1197 sep = arg->argv[arg->argn]; 1198 } 1199 1200 sep = strchr(sep, '.'); 1201 if (sep) { 1202 if (strcasecmp(++sep, "random") == 0) { 1203 arg->cx->cfg.dial.next_timeout = -1; 1204 randinit(); 1205 } else { 1206 timeout = atoi(sep); 1207 if (timeout >= 0) 1208 arg->cx->cfg.dial.next_timeout = timeout; 1209 else { 1210 log_Printf(LogWARN, "Invalid next redial timeout\n"); 1211 return -1; 1212 } 1213 } 1214 } else 1215 /* Default next timeout */ 1216 arg->cx->cfg.dial.next_timeout = DIAL_NEXT_TIMEOUT; 1217 1218 if (arg->argc == arg->argn+2) { 1219 tries = atoi(arg->argv[arg->argn+1]); 1220 1221 if (tries >= 0) { 1222 arg->cx->cfg.dial.max = tries; 1223 } else { 1224 log_Printf(LogWARN, "Invalid retry value\n"); 1225 return 1; 1226 } 1227 } 1228 return 0; 1229 } 1230 1231 return -1; 1232} 1233 1234static const char * const states[] = { 1235 "closed", 1236 "opening", 1237 "hangup", 1238 "dial", 1239 "carrier", 1240 "logout", 1241 "login", 1242 "ready", 1243 "lcp", 1244 "auth", 1245 "cbcp", 1246 "open" 1247}; 1248 1249const char * 1250datalink_State(struct datalink *dl) 1251{ 1252 if (dl->state < 0 || dl->state >= sizeof states / sizeof states[0]) 1253 return "unknown"; 1254 return states[dl->state]; 1255} 1256 1257static void 1258datalink_NewState(struct datalink *dl, int state) 1259{ 1260 if (state != dl->state) { 1261 if (state >= 0 && state < sizeof states / sizeof states[0]) { 1262 log_Printf(LogPHASE, "%s: %s -> %s\n", dl->name, datalink_State(dl), 1263 states[state]); 1264 dl->state = state; 1265 } else 1266 log_Printf(LogERROR, "%s: Can't enter state %d !\n", dl->name, state); 1267 } 1268} 1269 1270struct datalink * 1271iov2datalink(struct bundle *bundle, struct iovec *iov, int *niov, int maxiov, 1272 int fd, int *auxfd, int *nauxfd) 1273{ 1274 struct datalink *dl, *cdl; 1275 struct fsm_retry copy; 1276 char *oname; 1277 1278 dl = (struct datalink *)iov[(*niov)++].iov_base; 1279 dl->name = iov[*niov].iov_base; 1280 1281 if (dl->name[DATALINK_MAXNAME-1]) { 1282 dl->name[DATALINK_MAXNAME-1] = '\0'; 1283 if (strlen(dl->name) == DATALINK_MAXNAME - 1) 1284 log_Printf(LogWARN, "Datalink name truncated to \"%s\"\n", dl->name); 1285 } 1286 1287 /* Make sure the name is unique ! */ 1288 oname = NULL; 1289 do { 1290 for (cdl = bundle->links; cdl; cdl = cdl->next) 1291 if (!strcasecmp(dl->name, cdl->name)) { 1292 if (oname) 1293 free(datalink_NextName(dl)); 1294 else 1295 oname = datalink_NextName(dl); 1296 break; /* Keep renaming 'till we have no conflicts */ 1297 } 1298 } while (cdl); 1299 1300 if (oname) { 1301 log_Printf(LogPHASE, "Rename link %s to %s\n", oname, dl->name); 1302 free(oname); 1303 } else { 1304 dl->name = strdup(dl->name); 1305 free(iov[*niov].iov_base); 1306 } 1307 (*niov)++; 1308 1309 dl->desc.type = DATALINK_DESCRIPTOR; 1310 dl->desc.UpdateSet = datalink_UpdateSet; 1311 dl->desc.IsSet = datalink_IsSet; 1312 dl->desc.Read = datalink_Read; 1313 dl->desc.Write = datalink_Write; 1314 1315 mp_linkInit(&dl->mp); 1316 *dl->phone.list = '\0'; 1317 dl->phone.next = NULL; 1318 dl->phone.alt = NULL; 1319 dl->phone.chosen = "N/A"; 1320 1321 dl->bundle = bundle; 1322 dl->next = NULL; 1323 memset(&dl->dial.timer, '\0', sizeof dl->dial.timer); 1324 dl->dial.tries = 0; 1325 dl->reconnect_tries = 0; 1326 dl->parent = &bundle->fsm; 1327 dl->fsmp.LayerStart = datalink_LayerStart; 1328 dl->fsmp.LayerUp = datalink_LayerUp; 1329 dl->fsmp.LayerDown = datalink_LayerDown; 1330 dl->fsmp.LayerFinish = datalink_LayerFinish; 1331 dl->fsmp.object = dl; 1332 1333 dl->physical = iov2physical(dl, iov, niov, maxiov, fd, auxfd, nauxfd); 1334 1335 if (!dl->physical) { 1336 free(dl->name); 1337 free(dl); 1338 dl = NULL; 1339 } else { 1340 copy = dl->pap.cfg.fsm; 1341 pap_Init(&dl->pap, dl->physical); 1342 dl->pap.cfg.fsm = copy; 1343 1344 copy = dl->chap.auth.cfg.fsm; 1345 chap_Init(&dl->chap, dl->physical); 1346 dl->chap.auth.cfg.fsm = copy; 1347 1348 cbcp_Init(&dl->cbcp, dl->physical); 1349 1350 memset(&dl->chat, '\0', sizeof dl->chat); /* Force buf{start,end} reset */ 1351 chat_Init(&dl->chat, dl->physical); 1352 1353 log_Printf(LogPHASE, "%s: Transferred in %s state\n", 1354 dl->name, datalink_State(dl)); 1355 } 1356 1357 return dl; 1358} 1359 1360int 1361datalink2iov(struct datalink *dl, struct iovec *iov, int *niov, int maxiov, 1362 int *auxfd, int *nauxfd) 1363{ 1364 /* If `dl' is NULL, we're allocating before a Fromiov() */ 1365 int link_fd; 1366 1367 if (dl) { 1368 timer_Stop(&dl->dial.timer); 1369 /* The following is purely for the sake of paranoia */ 1370 cbcp_Down(&dl->cbcp); 1371 timer_Stop(&dl->pap.authtimer); 1372 timer_Stop(&dl->chap.auth.authtimer); 1373 } 1374 1375 if (*niov >= maxiov - 1) { 1376 log_Printf(LogERROR, "Toiov: No room for datalink !\n"); 1377 if (dl) { 1378 free(dl->name); 1379 free(dl); 1380 } 1381 return -1; 1382 } 1383 1384 iov[*niov].iov_base = (void *)dl; 1385 iov[(*niov)++].iov_len = sizeof *dl; 1386 iov[*niov].iov_base = dl ? realloc(dl->name, DATALINK_MAXNAME) : NULL; 1387 iov[(*niov)++].iov_len = DATALINK_MAXNAME; 1388 1389 link_fd = physical2iov(dl ? dl->physical : NULL, iov, niov, maxiov, auxfd, 1390 nauxfd); 1391 1392 if (link_fd == -1 && dl) { 1393 free(dl->name); 1394 free(dl); 1395 } 1396 1397 return link_fd; 1398} 1399 1400void 1401datalink_Rename(struct datalink *dl, const char *name) 1402{ 1403 free(dl->name); 1404 dl->physical->link.name = dl->name = strdup(name); 1405} 1406 1407char * 1408datalink_NextName(struct datalink *dl) 1409{ 1410 int f, n; 1411 char *name, *oname; 1412 1413 n = strlen(dl->name); 1414 name = (char *)malloc(n+3); 1415 for (f = n - 1; f >= 0; f--) 1416 if (!isdigit(dl->name[f])) 1417 break; 1418 n = sprintf(name, "%.*s-", dl->name[f] == '-' ? f : f + 1, dl->name); 1419 sprintf(name + n, "%d", atoi(dl->name + f + 1) + 1); 1420 oname = dl->name; 1421 dl->name = name; 1422 /* our physical link name isn't updated (it probably isn't created yet) */ 1423 return oname; 1424} 1425 1426int 1427datalink_SetMode(struct datalink *dl, int mode) 1428{ 1429 if (!physical_SetMode(dl->physical, mode)) 1430 return 0; 1431 if (dl->physical->type & (PHYS_DIRECT|PHYS_DEDICATED)) 1432 dl->script.run = 0; 1433 if (dl->physical->type == PHYS_DIRECT) 1434 dl->reconnect_tries = 0; 1435 if (mode & (PHYS_DDIAL|PHYS_BACKGROUND|PHYS_FOREGROUND) && 1436 dl->state <= DATALINK_READY) 1437 datalink_Up(dl, 1, 1); 1438 return 1; 1439} 1440 1441int 1442datalink_GetDialTimeout(struct datalink *dl) 1443{ 1444 int result = dl->cfg.dial.timeout + dl->dial.incs * dl->cfg.dial.inc; 1445 1446 if (dl->dial.incs < dl->cfg.dial.maxinc) 1447 dl->dial.incs++; 1448 1449 return result; 1450} 1451