2 * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/param.h>
30 #include <netinet/in.h>
31 #include <netinet/in_systm.h>
32 #include <netinet/ip.h>
49 #include "descriptor.h"
53 #include "throughput.h"
58 #include "slcompress.h"
76 static void datalink_LoginDone(struct datalink *);
77 static void datalink_NewState(struct datalink *, int);
80 datalink_OpenTimeout(void *v)
82 struct datalink *dl = (struct datalink *)v;
84 timer_Stop(&dl->dial.timer);
85 if (dl->state == DATALINK_OPENING)
86 log_Printf(LogPHASE, "%s: Redial timer expired.\n", dl->name);
90 datalink_StartDialTimer(struct datalink *dl, int Timeout)
94 timer_Stop(&dl->dial.timer);
97 dl->dial.timer.load = Timeout * SECTICKS;
99 result = (random() % DIAL_TIMEOUT) + 1;
100 dl->dial.timer.load = result * SECTICKS;
102 dl->dial.timer.func = datalink_OpenTimeout;
103 dl->dial.timer.name = "dial";
104 dl->dial.timer.arg = dl;
105 timer_Start(&dl->dial.timer);
106 if (dl->state == DATALINK_OPENING)
107 log_Printf(LogPHASE, "%s: Enter pause (%d) for redialing.\n",
114 datalink_HangupDone(struct datalink *dl)
116 if (dl->physical->type == PHYS_DEDICATED && !dl->bundle->CleaningUp &&
117 dl->physical->fd != -1) {
118 /* Don't close our device if the link is dedicated */
119 datalink_LoginDone(dl);
123 chat_Finish(&dl->chat);
124 physical_Close(dl->physical);
125 dl->phone.chosen = "N/A";
127 if (dl->cbcp.required) {
128 log_Printf(LogPHASE, "Call peer back on %s\n", dl->cbcp.fsm.phone);
129 dl->cfg.callback.opmask = 0;
130 strncpy(dl->cfg.phone.list, dl->cbcp.fsm.phone,
131 sizeof dl->cfg.phone.list - 1);
132 dl->cfg.phone.list[sizeof dl->cfg.phone.list - 1] = '\0';
133 dl->phone.alt = dl->phone.next = NULL;
134 dl->reconnect_tries = dl->cfg.reconnect.max;
135 dl->dial.tries = dl->cfg.dial.max;
138 dl->script.packetmode = 1;
139 if (!physical_SetMode(dl->physical, PHYS_BACKGROUND))
140 log_Printf(LogERROR, "Oops - can't change mode to BACKGROUND (gulp) !\n");
141 bundle_LinksRemoved(dl->bundle);
142 /* if dial.timeout is < 0 (random), we don't override fsm.delay */
143 if (dl->cbcp.fsm.delay < dl->cfg.dial.timeout)
144 dl->cbcp.fsm.delay = dl->cfg.dial.timeout;
145 datalink_StartDialTimer(dl, dl->cbcp.fsm.delay);
146 cbcp_Down(&dl->cbcp);
147 datalink_NewState(dl, DATALINK_OPENING);
148 if (bundle_Phase(dl->bundle) == PHASE_DEAD ||
149 bundle_Phase(dl->bundle) == PHASE_TERMINATE)
150 bundle_NewPhase(dl->bundle, PHASE_ESTABLISH);
151 } else if (dl->bundle->CleaningUp ||
152 (dl->physical->type == PHYS_DIRECT) ||
153 ((!dl->dial.tries || (dl->dial.tries < 0 && !dl->reconnect_tries)) &&
154 !(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)))) {
155 datalink_NewState(dl, DATALINK_CLOSED);
158 dl->reconnect_tries = 0;
159 bundle_LinkClosed(dl->bundle, dl);
160 if (!dl->bundle->CleaningUp)
161 datalink_StartDialTimer(dl, datalink_GetDialTimeout(dl));
163 datalink_NewState(dl, DATALINK_OPENING);
164 if (bundle_Phase(dl->bundle) == PHASE_DEAD ||
165 bundle_Phase(dl->bundle) == PHASE_TERMINATE)
166 bundle_NewPhase(dl->bundle, PHASE_ESTABLISH);
167 if (dl->dial.tries < 0) {
168 datalink_StartDialTimer(dl, dl->cfg.reconnect.timeout);
169 dl->dial.tries = dl->cfg.dial.max;
171 dl->reconnect_tries--;
173 if (dl->phone.next == NULL)
174 datalink_StartDialTimer(dl, datalink_GetDialTimeout(dl));
176 datalink_StartDialTimer(dl, dl->cfg.dial.next_timeout);
182 datalink_ChoosePhoneNumber(struct datalink *dl)
186 if (dl->phone.alt == NULL) {
187 if (dl->phone.next == NULL) {
188 strncpy(dl->phone.list, dl->cfg.phone.list, sizeof dl->phone.list - 1);
189 dl->phone.list[sizeof dl->phone.list - 1] = '\0';
190 if (*dl->phone.list == '\0')
192 dl->phone.next = dl->phone.list;
194 dl->phone.alt = strsep(&dl->phone.next, ":");
196 phone = strsep(&dl->phone.alt, "|");
197 dl->phone.chosen = *phone ? phone : "[NONE]";
199 log_Printf(LogPHASE, "Phone: %s\n", phone);
204 datalink_LoginDone(struct datalink *dl)
206 chat_Finish(&dl->chat);
208 if (!dl->script.packetmode) {
211 datalink_NewState(dl, DATALINK_READY);
212 } else if (!physical_Raw(dl->physical)) {
214 log_Printf(LogWARN, "datalink_LoginDone: Not connected.\n");
215 if (dl->script.run) {
216 datalink_NewState(dl, DATALINK_LOGOUT);
217 chat_Setup(&dl->chat, dl->cfg.script.logout, NULL);
219 physical_StopDeviceTimer(dl->physical);
220 if (dl->physical->type == PHYS_DEDICATED)
221 /* force a redial timeout */
222 physical_Close(dl->physical);
223 datalink_HangupDone(dl);
229 hdlc_Init(&dl->physical->hdlc, &dl->physical->link.lcp);
230 async_Init(&dl->physical->async);
232 lcp_Setup(&dl->physical->link.lcp, dl->state == DATALINK_READY ?
233 0 : dl->physical->link.lcp.cfg.openmode);
234 ccp_Setup(&dl->physical->link.ccp);
236 datalink_NewState(dl, DATALINK_LCP);
237 fsm_Up(&dl->physical->link.lcp.fsm);
238 fsm_Open(&dl->physical->link.lcp.fsm);
243 datalink_UpdateSet(struct descriptor *d, fd_set *r, fd_set *w, fd_set *e,
246 struct datalink *dl = descriptor2datalink(d);
251 case DATALINK_CLOSED:
252 if ((dl->physical->type & (PHYS_DIRECT|PHYS_DEDICATED|PHYS_BACKGROUND|
253 PHYS_FOREGROUND|PHYS_DDIAL)) &&
254 !dl->bundle->CleaningUp)
256 * Our first time in - DEDICATED & DDIAL never come down, and
257 * DIRECT, FOREGROUND & BACKGROUND get deleted when they enter
258 * DATALINK_CLOSED. Go to DATALINK_OPENING via datalink_Up()
261 datalink_Up(dl, 1, 1);
266 case DATALINK_OPENING:
267 if (dl->dial.timer.state != TIMER_RUNNING) {
268 if (--dl->dial.tries < 0)
270 if (physical_Open(dl->physical, dl->bundle) >= 0) {
271 log_WritePrompts(dl, "%s: Entering terminal mode on %s\r\n"
272 "Type `~?' for help\r\n", dl->name,
273 dl->physical->name.full);
274 if (dl->script.run) {
275 datalink_NewState(dl, DATALINK_DIAL);
276 chat_Setup(&dl->chat, dl->cfg.script.dial, *dl->cfg.script.dial ?
277 datalink_ChoosePhoneNumber(dl) : "");
278 if (!(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)) &&
280 log_Printf(LogCHAT, "%s: Dial attempt %u of %d\n",
281 dl->name, dl->cfg.dial.max - dl->dial.tries,
284 datalink_NewState(dl, DATALINK_CARRIER);
285 return datalink_UpdateSet(d, r, w, e, n);
287 if (!(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)) &&
289 log_Printf(LogCHAT, "Failed to open device (attempt %u of %d)\n",
290 dl->cfg.dial.max - dl->dial.tries, dl->cfg.dial.max);
292 log_Printf(LogCHAT, "Failed to open device\n");
294 if (dl->bundle->CleaningUp ||
295 (!(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)) &&
296 dl->cfg.dial.max && dl->dial.tries == 0)) {
297 datalink_NewState(dl, DATALINK_CLOSED);
298 dl->reconnect_tries = 0;
300 log_WritePrompts(dl, "Failed to open %s\n",
301 dl->physical->name.full);
302 bundle_LinkClosed(dl->bundle, dl);
304 if (!dl->bundle->CleaningUp) {
307 timeout = datalink_StartDialTimer(dl, datalink_GetDialTimeout(dl));
308 log_WritePrompts(dl, "Failed to open %s, pause %d seconds\n",
309 dl->physical->name.full, timeout);
315 case DATALINK_CARRIER:
316 /* Wait for carrier on the device */
317 switch (physical_AwaitCarrier(dl->physical)) {
318 case CARRIER_PENDING:
319 log_Printf(LogDEBUG, "Waiting for carrier\n");
320 return 0; /* A device timer is running to wake us up again */
323 if (dl->script.run) {
324 datalink_NewState(dl, DATALINK_LOGIN);
325 chat_Setup(&dl->chat, dl->cfg.script.login, NULL);
327 datalink_LoginDone(dl);
328 return datalink_UpdateSet(d, r, w, e, n);
331 physical_Offline(dl->physical); /* Is this required ? */
332 if (dl->script.run) {
333 datalink_NewState(dl, DATALINK_HANGUP);
334 chat_Setup(&dl->chat, dl->cfg.script.hangup, NULL);
335 return datalink_UpdateSet(d, r, w, e, n);
337 datalink_HangupDone(dl);
338 return 0; /* Maybe bundle_CleanDatalinks() has something to do */
342 case DATALINK_HANGUP:
344 case DATALINK_LOGOUT:
346 result = descriptor_UpdateSet(&dl->chat.desc, r, w, e, n);
347 switch (dl->chat.state) {
349 /* script succeeded */
351 case DATALINK_HANGUP:
352 datalink_HangupDone(dl);
355 datalink_NewState(dl, DATALINK_CARRIER);
356 return datalink_UpdateSet(d, r, w, e, n);
357 case DATALINK_LOGOUT:
358 datalink_NewState(dl, DATALINK_HANGUP);
359 physical_Offline(dl->physical);
360 chat_Setup(&dl->chat, dl->cfg.script.hangup, NULL);
361 return datalink_UpdateSet(d, r, w, e, n);
363 dl->phone.alt = NULL;
364 datalink_LoginDone(dl);
365 return datalink_UpdateSet(d, r, w, e, n);
369 /* Going down - script failed */
370 log_Printf(LogWARN, "Chat script failed\n");
372 case DATALINK_HANGUP:
373 datalink_HangupDone(dl);
376 case DATALINK_LOGOUT:
378 datalink_NewState(dl, DATALINK_HANGUP);
379 physical_Offline(dl->physical);
380 chat_Setup(&dl->chat, dl->cfg.script.hangup, NULL);
381 return datalink_UpdateSet(d, r, w, e, n);
392 result = descriptor_UpdateSet(&dl->chap.desc, r, w, e, n) +
393 descriptor_UpdateSet(&dl->physical->desc, r, w, e, n);
400 datalink_RemoveFromSet(struct datalink *dl, fd_set *r, fd_set *w, fd_set *e)
402 return physical_RemoveFromSet(dl->physical, r, w, e);
406 datalink_IsSet(struct descriptor *d, const fd_set *fdset)
408 struct datalink *dl = descriptor2datalink(d);
411 case DATALINK_CLOSED:
412 case DATALINK_OPENING:
415 case DATALINK_HANGUP:
417 case DATALINK_LOGOUT:
419 return descriptor_IsSet(&dl->chat.desc, fdset);
426 return descriptor_IsSet(&dl->chap.desc, fdset) ? 1 :
427 descriptor_IsSet(&dl->physical->desc, fdset);
433 datalink_Read(struct descriptor *d, struct bundle *bundle, const fd_set *fdset)
435 struct datalink *dl = descriptor2datalink(d);
438 case DATALINK_CLOSED:
439 case DATALINK_OPENING:
442 case DATALINK_HANGUP:
444 case DATALINK_LOGOUT:
446 descriptor_Read(&dl->chat.desc, bundle, fdset);
454 if (descriptor_IsSet(&dl->chap.desc, fdset))
455 descriptor_Read(&dl->chap.desc, bundle, fdset);
456 if (descriptor_IsSet(&dl->physical->desc, fdset))
457 descriptor_Read(&dl->physical->desc, bundle, fdset);
463 datalink_Write(struct descriptor *d, struct bundle *bundle, const fd_set *fdset)
465 struct datalink *dl = descriptor2datalink(d);
469 case DATALINK_CLOSED:
470 case DATALINK_OPENING:
473 case DATALINK_HANGUP:
475 case DATALINK_LOGOUT:
477 result = descriptor_Write(&dl->chat.desc, bundle, fdset);
485 if (descriptor_IsSet(&dl->chap.desc, fdset))
486 result += descriptor_Write(&dl->chap.desc, bundle, fdset);
487 if (descriptor_IsSet(&dl->physical->desc, fdset))
488 result += descriptor_Write(&dl->physical->desc, bundle, fdset);
496 datalink_ComeDown(struct datalink *dl, int how)
498 if (how != CLOSE_NORMAL) {
500 dl->reconnect_tries = 0;
501 if (dl->state >= DATALINK_READY && how == CLOSE_LCP)
505 if (dl->state >= DATALINK_READY && dl->stayonline) {
507 physical_StopDeviceTimer(dl->physical);
508 datalink_NewState(dl, DATALINK_READY);
509 } else if (dl->state != DATALINK_CLOSED && dl->state != DATALINK_HANGUP) {
510 physical_Offline(dl->physical);
511 if (dl->script.run && dl->state != DATALINK_OPENING) {
512 if (dl->state == DATALINK_LOGOUT) {
513 datalink_NewState(dl, DATALINK_HANGUP);
514 chat_Setup(&dl->chat, dl->cfg.script.hangup, NULL);
516 datalink_NewState(dl, DATALINK_LOGOUT);
517 chat_Setup(&dl->chat, dl->cfg.script.logout, NULL);
520 datalink_HangupDone(dl);
525 datalink_LayerStart(void *v, struct fsm *fp)
527 /* The given FSM is about to start up ! */
528 struct datalink *dl = (struct datalink *)v;
530 if (fp->proto == PROTO_LCP)
531 (*dl->parent->LayerStart)(dl->parent->object, fp);
535 datalink_LayerUp(void *v, struct fsm *fp)
537 /* The given fsm is now up */
538 struct datalink *dl = (struct datalink *)v;
539 struct lcp *lcp = &dl->physical->link.lcp;
541 if (fp->proto == PROTO_LCP) {
542 datalink_GotAuthname(dl, "");
543 lcp->auth_ineed = lcp->want_auth;
544 lcp->auth_iwait = lcp->his_auth;
545 if (lcp->his_auth || lcp->want_auth) {
546 if (bundle_Phase(dl->bundle) != PHASE_NETWORK)
547 bundle_NewPhase(dl->bundle, PHASE_AUTHENTICATE);
548 log_Printf(LogPHASE, "%s: his = %s, mine = %s\n", dl->name,
549 Auth2Nam(lcp->his_auth, lcp->his_authtype),
550 Auth2Nam(lcp->want_auth, lcp->want_authtype));
551 if (lcp->his_auth == PROTO_PAP)
552 auth_StartReq(&dl->pap);
553 if (lcp->want_auth == PROTO_CHAP)
554 auth_StartReq(&dl->chap.auth);
561 datalink_AuthReInit(struct datalink *dl)
563 auth_StopTimer(&dl->pap);
564 auth_StopTimer(&dl->chap.auth);
565 chap_ReInit(&dl->chap);
569 datalink_GotAuthname(struct datalink *dl, const char *name)
571 strncpy(dl->peer.authname, name, sizeof dl->peer.authname - 1);
572 dl->peer.authname[sizeof dl->peer.authname - 1] = '\0';
576 datalink_NCPUp(struct datalink *dl)
578 int ccpok = ccp_SetOpenMode(&dl->physical->link.ccp);
580 if (dl->physical->link.lcp.want_mrru && dl->physical->link.lcp.his_mrru) {
581 /* we've authenticated in multilink mode ! */
582 switch (mp_Up(&dl->bundle->ncp.mp, dl)) {
584 /* We've handed the link off to another ppp (well, we will soon) ! */
587 /* First link in the bundle */
588 auth_Select(dl->bundle, dl->peer.authname);
589 bundle_CalculateBandwidth(dl->bundle);
592 /* We're in multilink mode ! */
593 dl->physical->link.ccp.fsm.open_mode = OPEN_PASSIVE; /* override */
594 bundle_CalculateBandwidth(dl->bundle);
597 datalink_AuthNotOk(dl);
600 } else if (bundle_Phase(dl->bundle) == PHASE_NETWORK) {
601 log_Printf(LogPHASE, "%s: Already in NETWORK phase\n", dl->name);
602 datalink_NewState(dl, DATALINK_OPEN);
603 bundle_CalculateBandwidth(dl->bundle);
604 (*dl->parent->LayerUp)(dl->parent->object, &dl->physical->link.lcp.fsm);
607 dl->bundle->ncp.mp.peer = dl->peer;
608 ipcp_SetLink(&dl->bundle->ncp.ipcp, &dl->physical->link);
609 auth_Select(dl->bundle, dl->peer.authname);
613 fsm_Up(&dl->physical->link.ccp.fsm);
614 fsm_Open(&dl->physical->link.ccp.fsm);
616 datalink_NewState(dl, DATALINK_OPEN);
617 bundle_NewPhase(dl->bundle, PHASE_NETWORK);
618 (*dl->parent->LayerUp)(dl->parent->object, &dl->physical->link.lcp.fsm);
622 datalink_CBCPComplete(struct datalink *dl)
624 datalink_NewState(dl, DATALINK_LCP);
625 datalink_AuthReInit(dl);
626 fsm_Close(&dl->physical->link.lcp.fsm);
630 datalink_CBCPFailed(struct datalink *dl)
632 cbcp_Down(&dl->cbcp);
633 datalink_CBCPComplete(dl);
637 datalink_AuthOk(struct datalink *dl)
639 if ((dl->physical->link.lcp.his_callback.opmask &
640 CALLBACK_BIT(CALLBACK_CBCP) ||
641 dl->physical->link.lcp.want_callback.opmask &
642 CALLBACK_BIT(CALLBACK_CBCP)) &&
643 !(dl->physical->link.lcp.want_callback.opmask &
644 CALLBACK_BIT(CALLBACK_AUTH))) {
645 /* We must have agreed CBCP if AUTH isn't there any more */
646 datalink_NewState(dl, DATALINK_CBCP);
648 } else if (dl->physical->link.lcp.want_callback.opmask) {
650 log_Printf(LogPHASE, "%s: Shutdown and await peer callback\n", dl->name);
651 datalink_NewState(dl, DATALINK_LCP);
652 datalink_AuthReInit(dl);
653 fsm_Close(&dl->physical->link.lcp.fsm);
655 switch (dl->physical->link.lcp.his_callback.opmask) {
660 case CALLBACK_BIT(CALLBACK_AUTH):
661 auth_SetPhoneList(dl->peer.authname, dl->cbcp.fsm.phone,
662 sizeof dl->cbcp.fsm.phone);
663 if (*dl->cbcp.fsm.phone == '\0' || !strcmp(dl->cbcp.fsm.phone, "*")) {
664 log_Printf(LogPHASE, "%s: %s cannot be called back\n", dl->name,
666 *dl->cbcp.fsm.phone = '\0';
668 char *ptr = strchr(dl->cbcp.fsm.phone, ',');
670 *ptr = '\0'; /* Call back on the first number */
671 log_Printf(LogPHASE, "%s: Calling peer back on %s\n", dl->name,
673 dl->cbcp.required = 1;
675 dl->cbcp.fsm.delay = 0;
676 datalink_NewState(dl, DATALINK_LCP);
677 datalink_AuthReInit(dl);
678 fsm_Close(&dl->physical->link.lcp.fsm);
681 case CALLBACK_BIT(CALLBACK_E164):
682 strncpy(dl->cbcp.fsm.phone, dl->physical->link.lcp.his_callback.msg,
683 sizeof dl->cbcp.fsm.phone - 1);
684 dl->cbcp.fsm.phone[sizeof dl->cbcp.fsm.phone - 1] = '\0';
685 log_Printf(LogPHASE, "%s: Calling peer back on %s\n", dl->name,
687 dl->cbcp.required = 1;
688 dl->cbcp.fsm.delay = 0;
689 datalink_NewState(dl, DATALINK_LCP);
690 datalink_AuthReInit(dl);
691 fsm_Close(&dl->physical->link.lcp.fsm);
695 log_Printf(LogPHASE, "%s: Oops - Should have NAK'd peer callback !\n",
697 datalink_NewState(dl, DATALINK_LCP);
698 datalink_AuthReInit(dl);
699 fsm_Close(&dl->physical->link.lcp.fsm);
705 datalink_AuthNotOk(struct datalink *dl)
707 datalink_NewState(dl, DATALINK_LCP);
708 datalink_AuthReInit(dl);
709 fsm_Close(&dl->physical->link.lcp.fsm);
713 datalink_LayerDown(void *v, struct fsm *fp)
715 /* The given FSM has been told to come down */
716 struct datalink *dl = (struct datalink *)v;
718 if (fp->proto == PROTO_LCP) {
721 peerid_Init(&dl->peer);
722 fsm2initial(&dl->physical->link.ccp.fsm);
723 datalink_NewState(dl, DATALINK_LCP); /* before parent TLD */
724 (*dl->parent->LayerDown)(dl->parent->object, fp);
725 /* fall through (just in case) */
728 if (!dl->cbcp.required)
729 cbcp_Down(&dl->cbcp);
730 /* fall through (just in case) */
733 timer_Stop(&dl->pap.authtimer);
734 timer_Stop(&dl->chap.auth.authtimer);
736 datalink_NewState(dl, DATALINK_LCP);
737 datalink_AuthReInit(dl);
742 datalink_LayerFinish(void *v, struct fsm *fp)
744 /* The given fsm is now down */
745 struct datalink *dl = (struct datalink *)v;
747 if (fp->proto == PROTO_LCP) {
749 (*dl->parent->LayerFinish)(dl->parent->object, fp);
750 datalink_ComeDown(dl, CLOSE_NORMAL);
751 } else if (fp->state == ST_CLOSED && fp->open_mode == OPEN_PASSIVE)
752 fsm_Open(fp); /* CCP goes to ST_STOPPED */
756 datalink_Create(const char *name, struct bundle *bundle, int type)
760 dl = (struct datalink *)malloc(sizeof(struct datalink));
764 dl->desc.type = DATALINK_DESCRIPTOR;
765 dl->desc.UpdateSet = datalink_UpdateSet;
766 dl->desc.IsSet = datalink_IsSet;
767 dl->desc.Read = datalink_Read;
768 dl->desc.Write = datalink_Write;
770 dl->state = DATALINK_CLOSED;
772 *dl->cfg.script.dial = '\0';
773 *dl->cfg.script.login = '\0';
774 *dl->cfg.script.logout = '\0';
775 *dl->cfg.script.hangup = '\0';
776 *dl->cfg.phone.list = '\0';
777 *dl->phone.list = '\0';
778 dl->phone.next = NULL;
779 dl->phone.alt = NULL;
780 dl->phone.chosen = "N/A";
783 dl->script.packetmode = 1;
784 mp_linkInit(&dl->mp);
789 memset(&dl->dial.timer, '\0', sizeof dl->dial.timer);
792 dl->cfg.dial.max = 1;
793 dl->cfg.dial.next_timeout = DIAL_NEXT_TIMEOUT;
794 dl->cfg.dial.timeout = DIAL_TIMEOUT;
795 dl->cfg.dial.inc = 0;
796 dl->cfg.dial.maxinc = 10;
798 dl->reconnect_tries = 0;
799 dl->cfg.reconnect.max = 0;
800 dl->cfg.reconnect.timeout = RECONNECT_TIMEOUT;
802 dl->cfg.callback.opmask = 0;
803 dl->cfg.cbcp.delay = 0;
804 *dl->cfg.cbcp.phone = '\0';
805 dl->cfg.cbcp.fsmretry = DEF_FSMRETRY;
807 dl->name = strdup(name);
808 peerid_Init(&dl->peer);
809 dl->parent = &bundle->fsm;
810 dl->fsmp.LayerStart = datalink_LayerStart;
811 dl->fsmp.LayerUp = datalink_LayerUp;
812 dl->fsmp.LayerDown = datalink_LayerDown;
813 dl->fsmp.LayerFinish = datalink_LayerFinish;
814 dl->fsmp.object = dl;
816 if ((dl->physical = physical_Create(dl, type)) == NULL) {
822 pap_Init(&dl->pap, dl->physical);
823 chap_Init(&dl->chap, dl->physical);
824 cbcp_Init(&dl->cbcp, dl->physical);
826 memset(&dl->chat, '\0', sizeof dl->chat); /* Force buf{start,end} reset */
827 chat_Init(&dl->chat, dl->physical);
829 log_Printf(LogPHASE, "%s: Created in %s state\n",
830 dl->name, datalink_State(dl));
836 datalink_Clone(struct datalink *odl, const char *name)
840 dl = (struct datalink *)malloc(sizeof(struct datalink));
844 dl->desc.type = DATALINK_DESCRIPTOR;
845 dl->desc.UpdateSet = datalink_UpdateSet;
846 dl->desc.IsSet = datalink_IsSet;
847 dl->desc.Read = datalink_Read;
848 dl->desc.Write = datalink_Write;
850 dl->state = DATALINK_CLOSED;
852 memcpy(&dl->cfg, &odl->cfg, sizeof dl->cfg);
853 mp_linkInit(&dl->mp);
854 *dl->phone.list = '\0';
855 dl->phone.next = NULL;
856 dl->phone.alt = NULL;
857 dl->phone.chosen = "N/A";
858 dl->bundle = odl->bundle;
860 memset(&dl->dial.timer, '\0', sizeof dl->dial.timer);
862 dl->reconnect_tries = 0;
863 dl->name = strdup(name);
864 peerid_Init(&dl->peer);
865 dl->parent = odl->parent;
866 memcpy(&dl->fsmp, &odl->fsmp, sizeof dl->fsmp);
867 dl->fsmp.object = dl;
869 if ((dl->physical = physical_Create(dl, PHYS_INTERACTIVE)) == NULL) {
874 pap_Init(&dl->pap, dl->physical);
875 dl->pap.cfg = odl->pap.cfg;
877 chap_Init(&dl->chap, dl->physical);
878 dl->chap.auth.cfg = odl->chap.auth.cfg;
880 memcpy(&dl->physical->cfg, &odl->physical->cfg, sizeof dl->physical->cfg);
881 memcpy(&dl->physical->link.lcp.cfg, &odl->physical->link.lcp.cfg,
882 sizeof dl->physical->link.lcp.cfg);
883 memcpy(&dl->physical->link.ccp.cfg, &odl->physical->link.ccp.cfg,
884 sizeof dl->physical->link.ccp.cfg);
885 memcpy(&dl->physical->async.cfg, &odl->physical->async.cfg,
886 sizeof dl->physical->async.cfg);
888 cbcp_Init(&dl->cbcp, dl->physical);
890 memset(&dl->chat, '\0', sizeof dl->chat); /* Force buf{start,end} reset */
891 chat_Init(&dl->chat, dl->physical);
893 log_Printf(LogPHASE, "%s: Cloned in %s state\n",
894 dl->name, datalink_State(dl));
900 datalink_Destroy(struct datalink *dl)
902 struct datalink *result;
904 if (dl->state != DATALINK_CLOSED) {
905 log_Printf(LogERROR, "Oops, destroying a datalink in state %s\n",
908 case DATALINK_HANGUP:
911 chat_Finish(&dl->chat); /* Gotta blat the timers ! */
916 chat_Destroy(&dl->chat);
917 timer_Stop(&dl->dial.timer);
919 physical_Destroy(dl->physical);
927 datalink_Up(struct datalink *dl, int runscripts, int packetmode)
929 if (dl->physical->type & (PHYS_DIRECT|PHYS_DEDICATED))
934 case DATALINK_CLOSED:
935 if (bundle_Phase(dl->bundle) == PHASE_DEAD ||
936 bundle_Phase(dl->bundle) == PHASE_TERMINATE)
937 bundle_NewPhase(dl->bundle, PHASE_ESTABLISH);
938 datalink_NewState(dl, DATALINK_OPENING);
939 dl->reconnect_tries =
940 dl->physical->type == PHYS_DIRECT ? 0 : dl->cfg.reconnect.max;
941 dl->dial.tries = dl->cfg.dial.max;
942 dl->script.run = runscripts;
943 dl->script.packetmode = packetmode;
946 case DATALINK_OPENING:
947 if (!dl->script.run && runscripts)
954 if (!dl->script.packetmode && packetmode) {
955 dl->script.packetmode = 1;
956 if (dl->state == DATALINK_READY)
957 datalink_LoginDone(dl);
964 datalink_Close(struct datalink *dl, int how)
969 peerid_Init(&dl->peer);
970 fsm2initial(&dl->physical->link.ccp.fsm);
976 datalink_AuthReInit(dl);
977 fsm_Close(&dl->physical->link.lcp.fsm);
978 if (how != CLOSE_NORMAL) {
980 dl->reconnect_tries = 0;
981 if (how == CLOSE_LCP)
987 datalink_ComeDown(dl, how);
992 datalink_Down(struct datalink *dl, int how)
994 /* Carrier is lost */
997 peerid_Init(&dl->peer);
998 fsm2initial(&dl->physical->link.ccp.fsm);
1004 fsm2initial(&dl->physical->link.lcp.fsm);
1008 datalink_ComeDown(dl, how);
1013 datalink_StayDown(struct datalink *dl)
1015 dl->reconnect_tries = 0;
1019 datalink_DontHangup(struct datalink *dl)
1021 if (dl->state >= DATALINK_LCP)
1026 datalink_Show(struct cmdargs const *arg)
1028 prompt_Printf(arg->prompt, "Name: %s\n", arg->cx->name);
1029 prompt_Printf(arg->prompt, " State: %s\n",
1030 datalink_State(arg->cx));
1031 prompt_Printf(arg->prompt, " Peer name: ");
1032 if (*arg->cx->peer.authname)
1033 prompt_Printf(arg->prompt, "%s\n", arg->cx->peer.authname);
1034 else if (arg->cx->state == DATALINK_OPEN)
1035 prompt_Printf(arg->prompt, "None requested\n");
1037 prompt_Printf(arg->prompt, "N/A\n");
1038 prompt_Printf(arg->prompt, " Discriminator: %s\n",
1039 mp_Enddisc(arg->cx->peer.enddisc.class,
1040 arg->cx->peer.enddisc.address,
1041 arg->cx->peer.enddisc.len));
1043 prompt_Printf(arg->prompt, "\nDefaults:\n");
1044 prompt_Printf(arg->prompt, " Phone List: %s\n",
1045 arg->cx->cfg.phone.list);
1046 if (arg->cx->cfg.dial.max)
1047 prompt_Printf(arg->prompt, " Dial tries: %d, delay ",
1048 arg->cx->cfg.dial.max);
1050 prompt_Printf(arg->prompt, " Dial tries: infinite, delay ");
1051 if (arg->cx->cfg.dial.next_timeout >= 0)
1052 prompt_Printf(arg->prompt, "%ds/", arg->cx->cfg.dial.next_timeout);
1054 prompt_Printf(arg->prompt, "random/");
1055 if (arg->cx->cfg.dial.timeout >= 0)
1056 prompt_Printf(arg->prompt, "%ds\n", arg->cx->cfg.dial.timeout);
1058 prompt_Printf(arg->prompt, "random\n");
1059 prompt_Printf(arg->prompt, " Reconnect tries: %d, delay ",
1060 arg->cx->cfg.reconnect.max);
1061 if (arg->cx->cfg.reconnect.timeout > 0)
1062 prompt_Printf(arg->prompt, "%ds\n", arg->cx->cfg.reconnect.timeout);
1064 prompt_Printf(arg->prompt, "random\n");
1065 prompt_Printf(arg->prompt, " Callback %s ", arg->cx->physical->type ==
1066 PHYS_DIRECT ? "accepted: " : "requested:");
1067 if (!arg->cx->cfg.callback.opmask)
1068 prompt_Printf(arg->prompt, "none\n");
1072 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_NONE)) {
1073 prompt_Printf(arg->prompt, "none");
1076 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_AUTH)) {
1077 prompt_Printf(arg->prompt, "%sauth", comma ? ", " : "");
1080 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_E164)) {
1081 prompt_Printf(arg->prompt, "%sE.164", comma ? ", " : "");
1082 if (arg->cx->physical->type != PHYS_DIRECT)
1083 prompt_Printf(arg->prompt, " (%s)", arg->cx->cfg.callback.msg);
1086 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_CBCP)) {
1087 prompt_Printf(arg->prompt, "%scbcp\n", comma ? ", " : "");
1088 prompt_Printf(arg->prompt, " CBCP: delay: %ds\n",
1089 arg->cx->cfg.cbcp.delay);
1090 prompt_Printf(arg->prompt, " phone: ");
1091 if (!strcmp(arg->cx->cfg.cbcp.phone, "*")) {
1092 if (arg->cx->physical->type & PHYS_DIRECT)
1093 prompt_Printf(arg->prompt, "Caller decides\n");
1095 prompt_Printf(arg->prompt, "Dialback server decides\n");
1097 prompt_Printf(arg->prompt, "%s\n", arg->cx->cfg.cbcp.phone);
1098 prompt_Printf(arg->prompt, " timeout: %lds\n",
1099 arg->cx->cfg.cbcp.fsmretry);
1101 prompt_Printf(arg->prompt, "\n");
1104 prompt_Printf(arg->prompt, " Dial Script: %s\n",
1105 arg->cx->cfg.script.dial);
1106 prompt_Printf(arg->prompt, " Login Script: %s\n",
1107 arg->cx->cfg.script.login);
1108 prompt_Printf(arg->prompt, " Logout Script: %s\n",
1109 arg->cx->cfg.script.logout);
1110 prompt_Printf(arg->prompt, " Hangup Script: %s\n",
1111 arg->cx->cfg.script.hangup);
1116 datalink_SetReconnect(struct cmdargs const *arg)
1118 if (arg->argc == arg->argn+2) {
1119 arg->cx->cfg.reconnect.timeout = atoi(arg->argv[arg->argn]);
1120 arg->cx->cfg.reconnect.max = atoi(arg->argv[arg->argn+1]);
1127 datalink_SetRedial(struct cmdargs const *arg)
1129 const char *sep, *osep;
1130 int timeout, inc, maxinc, tries;
1132 if (arg->argc == arg->argn+1 || arg->argc == arg->argn+2) {
1133 if (strncasecmp(arg->argv[arg->argn], "random", 6) == 0 &&
1134 (arg->argv[arg->argn][6] == '\0' || arg->argv[arg->argn][6] == '.')) {
1135 arg->cx->cfg.dial.timeout = -1;
1138 timeout = atoi(arg->argv[arg->argn]);
1141 arg->cx->cfg.dial.timeout = timeout;
1143 log_Printf(LogWARN, "Invalid redial timeout\n");
1148 sep = strchr(arg->argv[arg->argn], '+');
1153 arg->cx->cfg.dial.inc = inc;
1155 log_Printf(LogWARN, "Invalid timeout increment\n");
1158 sep = strchr(sep, '-');
1160 maxinc = atoi(++sep);
1162 arg->cx->cfg.dial.maxinc = maxinc;
1164 log_Printf(LogWARN, "Invalid maximum timeout increments\n");
1168 /* Default timeout increment */
1169 arg->cx->cfg.dial.maxinc = 10;
1173 /* Default timeout increment & max increment */
1174 arg->cx->cfg.dial.inc = 0;
1175 arg->cx->cfg.dial.maxinc = 10;
1176 sep = arg->argv[arg->argn];
1179 sep = strchr(sep, '.');
1181 if (strcasecmp(++sep, "random") == 0) {
1182 arg->cx->cfg.dial.next_timeout = -1;
1185 timeout = atoi(sep);
1187 arg->cx->cfg.dial.next_timeout = timeout;
1189 log_Printf(LogWARN, "Invalid next redial timeout\n");
1194 /* Default next timeout */
1195 arg->cx->cfg.dial.next_timeout = DIAL_NEXT_TIMEOUT;
1197 if (arg->argc == arg->argn+2) {
1198 tries = atoi(arg->argv[arg->argn+1]);
1201 arg->cx->cfg.dial.max = tries;
1203 log_Printf(LogWARN, "Invalid retry value\n");
1213 static const char *states[] = {
1229 datalink_State(struct datalink *dl)
1231 if (dl->state < 0 || dl->state >= sizeof states / sizeof states[0])
1233 return states[dl->state];
1237 datalink_NewState(struct datalink *dl, int state)
1239 if (state != dl->state) {
1240 if (state >= 0 && state < sizeof states / sizeof states[0]) {
1241 log_Printf(LogPHASE, "%s: %s -> %s\n", dl->name, datalink_State(dl),
1245 log_Printf(LogERROR, "%s: Can't enter state %d !\n", dl->name, state);
1250 iov2datalink(struct bundle *bundle, struct iovec *iov, int *niov, int maxiov,
1251 int fd, int *auxfd, int *nauxfd)
1253 struct datalink *dl, *cdl;
1254 struct fsm_retry copy;
1257 dl = (struct datalink *)iov[(*niov)++].iov_base;
1258 dl->name = iov[*niov].iov_base;
1260 if (dl->name[DATALINK_MAXNAME-1]) {
1261 dl->name[DATALINK_MAXNAME-1] = '\0';
1262 if (strlen(dl->name) == DATALINK_MAXNAME - 1)
1263 log_Printf(LogWARN, "Datalink name truncated to \"%s\"\n", dl->name);
1266 /* Make sure the name is unique ! */
1269 for (cdl = bundle->links; cdl; cdl = cdl->next)
1270 if (!strcasecmp(dl->name, cdl->name)) {
1272 free(datalink_NextName(dl));
1274 oname = datalink_NextName(dl);
1275 break; /* Keep renaming 'till we have no conflicts */
1280 log_Printf(LogPHASE, "Rename link %s to %s\n", oname, dl->name);
1283 dl->name = strdup(dl->name);
1284 free(iov[*niov].iov_base);
1288 dl->desc.type = DATALINK_DESCRIPTOR;
1289 dl->desc.UpdateSet = datalink_UpdateSet;
1290 dl->desc.IsSet = datalink_IsSet;
1291 dl->desc.Read = datalink_Read;
1292 dl->desc.Write = datalink_Write;
1294 mp_linkInit(&dl->mp);
1295 *dl->phone.list = '\0';
1296 dl->phone.next = NULL;
1297 dl->phone.alt = NULL;
1298 dl->phone.chosen = "N/A";
1300 dl->bundle = bundle;
1302 memset(&dl->dial.timer, '\0', sizeof dl->dial.timer);
1304 dl->reconnect_tries = 0;
1305 dl->parent = &bundle->fsm;
1306 dl->fsmp.LayerStart = datalink_LayerStart;
1307 dl->fsmp.LayerUp = datalink_LayerUp;
1308 dl->fsmp.LayerDown = datalink_LayerDown;
1309 dl->fsmp.LayerFinish = datalink_LayerFinish;
1310 dl->fsmp.object = dl;
1312 dl->physical = iov2physical(dl, iov, niov, maxiov, fd, auxfd, nauxfd);
1314 if (!dl->physical) {
1319 copy = dl->pap.cfg.fsm;
1320 pap_Init(&dl->pap, dl->physical);
1321 dl->pap.cfg.fsm = copy;
1323 copy = dl->chap.auth.cfg.fsm;
1324 chap_Init(&dl->chap, dl->physical);
1325 dl->chap.auth.cfg.fsm = copy;
1327 cbcp_Init(&dl->cbcp, dl->physical);
1329 memset(&dl->chat, '\0', sizeof dl->chat); /* Force buf{start,end} reset */
1330 chat_Init(&dl->chat, dl->physical);
1332 log_Printf(LogPHASE, "%s: Transferred in %s state\n",
1333 dl->name, datalink_State(dl));
1340 datalink2iov(struct datalink *dl, struct iovec *iov, int *niov, int maxiov,
1341 int *auxfd, int *nauxfd)
1343 /* If `dl' is NULL, we're allocating before a Fromiov() */
1347 timer_Stop(&dl->dial.timer);
1348 /* The following is purely for the sake of paranoia */
1349 cbcp_Down(&dl->cbcp);
1350 timer_Stop(&dl->pap.authtimer);
1351 timer_Stop(&dl->chap.auth.authtimer);
1354 if (*niov >= maxiov - 1) {
1355 log_Printf(LogERROR, "Toiov: No room for datalink !\n");
1363 iov[*niov].iov_base = (void *)dl;
1364 iov[(*niov)++].iov_len = sizeof *dl;
1365 iov[*niov].iov_base = dl ? realloc(dl->name, DATALINK_MAXNAME) : NULL;
1366 iov[(*niov)++].iov_len = DATALINK_MAXNAME;
1368 link_fd = physical2iov(dl ? dl->physical : NULL, iov, niov, maxiov, auxfd,
1371 if (link_fd == -1 && dl) {
1380 datalink_Rename(struct datalink *dl, const char *name)
1383 dl->physical->link.name = dl->name = strdup(name);
1387 datalink_NextName(struct datalink *dl)
1392 n = strlen(dl->name);
1393 name = (char *)malloc(n+3);
1394 for (f = n - 1; f >= 0; f--)
1395 if (!isdigit(dl->name[f]))
1397 n = sprintf(name, "%.*s-", dl->name[f] == '-' ? f : f + 1, dl->name);
1398 sprintf(name + n, "%d", atoi(dl->name + f + 1) + 1);
1401 /* our physical link name isn't updated (it probably isn't created yet) */
1406 datalink_SetMode(struct datalink *dl, int mode)
1408 if (!physical_SetMode(dl->physical, mode))
1410 if (dl->physical->type & (PHYS_DIRECT|PHYS_DEDICATED))
1412 if (dl->physical->type == PHYS_DIRECT)
1413 dl->reconnect_tries = 0;
1414 if (mode & (PHYS_DDIAL|PHYS_BACKGROUND|PHYS_FOREGROUND) &&
1415 dl->state <= DATALINK_READY)
1416 datalink_Up(dl, 1, 1);
1421 datalink_GetDialTimeout(struct datalink *dl)
1423 int result = dl->cfg.dial.timeout + dl->dial.incs * dl->cfg.dial.inc;
1425 if (dl->dial.incs < dl->cfg.dial.maxinc)