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>
33 #include <sys/socket.h>
49 #include "descriptor.h"
54 #include "throughput.h"
59 #include "slcompress.h"
80 static void datalink_LoginDone(struct datalink *);
81 static void datalink_NewState(struct datalink *, int);
84 datalink_OpenTimeout(void *v)
86 struct datalink *dl = (struct datalink *)v;
88 timer_Stop(&dl->dial.timer);
89 if (dl->state == DATALINK_OPENING)
90 log_Printf(LogCHAT, "%s: Redial timer expired.\n", dl->name);
94 datalink_StartDialTimer(struct datalink *dl, int Timeout)
98 timer_Stop(&dl->dial.timer);
100 result = (random() % DIAL_TIMEOUT) + 1;
101 dl->dial.timer.load = result ? result * SECTICKS : 1;
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",
113 datalink_HangupDone(struct datalink *dl)
115 if (dl->physical->type == PHYS_DEDICATED && !dl->bundle->CleaningUp &&
116 dl->physical->fd != -1) {
117 /* Don't close our device if the link is dedicated */
118 datalink_LoginDone(dl);
122 chat_Finish(&dl->chat);
123 physical_Close(dl->physical);
124 dl->phone.chosen = "N/A";
126 if (dl->cbcp.required) {
127 log_Printf(LogPHASE, "Call peer back on %s\n", dl->cbcp.fsm.phone);
128 dl->cfg.callback.opmask = 0;
129 strncpy(dl->cfg.phone.list, dl->cbcp.fsm.phone,
130 sizeof dl->cfg.phone.list - 1);
131 dl->cfg.phone.list[sizeof dl->cfg.phone.list - 1] = '\0';
132 dl->phone.alt = dl->phone.next = NULL;
133 dl->reconnect_tries = dl->cfg.reconnect.max;
134 dl->dial.tries = dl->cfg.dial.max;
137 dl->script.packetmode = 1;
138 if (!physical_SetMode(dl->physical, PHYS_BACKGROUND))
139 log_Printf(LogERROR, "Oops - can't change mode to BACKGROUND (gulp) !\n");
140 bundle_LinksRemoved(dl->bundle);
141 /* if dial.timeout is < 0 (random), we don't override fsm.delay */
142 if (dl->cbcp.fsm.delay < dl->cfg.dial.timeout)
143 dl->cbcp.fsm.delay = dl->cfg.dial.timeout;
144 datalink_StartDialTimer(dl, dl->cbcp.fsm.delay);
145 cbcp_Down(&dl->cbcp);
146 datalink_NewState(dl, DATALINK_OPENING);
147 if (bundle_Phase(dl->bundle) == PHASE_DEAD ||
148 bundle_Phase(dl->bundle) == PHASE_TERMINATE)
149 bundle_NewPhase(dl->bundle, PHASE_ESTABLISH);
150 } else if (dl->bundle->CleaningUp ||
151 (dl->physical->type == PHYS_DIRECT) ||
152 ((!dl->dial.tries || (dl->dial.tries < 0 && !dl->reconnect_tries)) &&
153 !(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)))) {
154 datalink_NewState(dl, DATALINK_CLOSED);
157 dl->reconnect_tries = 0;
158 bundle_LinkClosed(dl->bundle, dl);
159 if (!dl->bundle->CleaningUp &&
160 !(dl->physical->type & (PHYS_DIRECT|PHYS_BACKGROUND|PHYS_FOREGROUND)))
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--;
172 log_Printf(LogCHAT, "%s: Reconnect try %d of %d\n",
173 dl->name, dl->cfg.reconnect.max - dl->reconnect_tries,
174 dl->cfg.reconnect.max);
175 bundle_Notify(dl->bundle, EX_RECONNECT);
177 if (dl->phone.next == NULL)
178 datalink_StartDialTimer(dl, datalink_GetDialTimeout(dl));
180 datalink_StartDialTimer(dl, dl->cfg.dial.next_timeout);
181 bundle_Notify(dl->bundle, EX_REDIAL);
187 datalink_ChoosePhoneNumber(struct datalink *dl)
191 if (dl->phone.alt == NULL) {
192 if (dl->phone.next == NULL) {
193 strncpy(dl->phone.list, dl->cfg.phone.list, sizeof dl->phone.list - 1);
194 dl->phone.list[sizeof dl->phone.list - 1] = '\0';
195 if (*dl->phone.list == '\0')
197 dl->phone.next = dl->phone.list;
199 dl->phone.alt = strsep(&dl->phone.next, ":");
201 phone = strsep(&dl->phone.alt, "|");
202 dl->phone.chosen = *phone ? phone : "[NONE]";
204 log_Printf(LogCHAT, "Phone: %s\n", phone);
209 datalink_LoginDone(struct datalink *dl)
211 chat_Finish(&dl->chat);
213 if (!dl->script.packetmode) {
216 datalink_NewState(dl, DATALINK_READY);
217 } else if (!physical_Raw(dl->physical)) {
219 log_Printf(LogWARN, "datalink_LoginDone: Not connected.\n");
220 if (dl->script.run) {
221 datalink_NewState(dl, DATALINK_LOGOUT);
222 if (!chat_Setup(&dl->chat, dl->cfg.script.logout, NULL))
223 log_Printf(LogWARN, "Invalid logout script\n");
225 physical_StopDeviceTimer(dl->physical);
226 if (dl->physical->type == PHYS_DEDICATED)
227 /* force a redial timeout */
228 physical_Close(dl->physical);
229 datalink_HangupDone(dl);
235 hdlc_Init(&dl->physical->hdlc, &dl->physical->link.lcp);
236 async_Setup(&dl->physical->async);
238 lcp_Setup(&dl->physical->link.lcp, dl->state == DATALINK_READY ?
239 0 : dl->physical->link.lcp.cfg.openmode);
240 ccp_Setup(&dl->physical->link.ccp);
242 datalink_NewState(dl, DATALINK_LCP);
243 fsm_Up(&dl->physical->link.lcp.fsm);
244 fsm_Open(&dl->physical->link.lcp.fsm);
249 datalink_UpdateSet(struct fdescriptor *d, fd_set *r, fd_set *w, fd_set *e,
252 struct datalink *dl = descriptor2datalink(d);
257 case DATALINK_CLOSED:
258 if ((dl->physical->type & (PHYS_DIRECT|PHYS_DEDICATED|PHYS_BACKGROUND|
259 PHYS_FOREGROUND|PHYS_DDIAL)) &&
260 !dl->bundle->CleaningUp)
262 * Our first time in - DEDICATED & DDIAL never come down, and
263 * DIRECT, FOREGROUND & BACKGROUND get deleted when they enter
264 * DATALINK_CLOSED. Go to DATALINK_OPENING via datalink_Up()
267 datalink_Up(dl, 1, 1);
272 case DATALINK_OPENING:
273 if (dl->dial.timer.state != TIMER_RUNNING) {
274 if (--dl->dial.tries < 0)
276 if (physical_Open(dl->physical, dl->bundle) >= 0) {
277 log_WritePrompts(dl, "%s: Entering terminal mode on %s\r\n"
278 "Type `~?' for help\r\n", dl->name,
279 dl->physical->name.full);
280 if (dl->script.run) {
281 datalink_NewState(dl, DATALINK_DIAL);
282 if (!chat_Setup(&dl->chat, dl->cfg.script.dial,
283 *dl->cfg.script.dial ?
284 datalink_ChoosePhoneNumber(dl) : ""))
285 log_Printf(LogWARN, "Invalid dial script\n");
286 if (!(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)) &&
288 log_Printf(LogCHAT, "%s: Dial attempt %u of %d\n",
289 dl->name, dl->cfg.dial.max - dl->dial.tries,
292 datalink_NewState(dl, DATALINK_CARRIER);
293 return datalink_UpdateSet(d, r, w, e, n);
295 if (!(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)) &&
297 log_Printf(LogCHAT, "Failed to open device (attempt %u of %d)\n",
298 dl->cfg.dial.max - dl->dial.tries, dl->cfg.dial.max);
300 log_Printf(LogCHAT, "Failed to open device\n");
302 if (dl->bundle->CleaningUp ||
303 (!(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)) &&
304 dl->cfg.dial.max && dl->dial.tries == 0)) {
305 datalink_NewState(dl, DATALINK_CLOSED);
306 dl->reconnect_tries = 0;
308 log_WritePrompts(dl, "Failed to open %s\n",
309 dl->physical->name.full);
310 bundle_LinkClosed(dl->bundle, dl);
312 if (!dl->bundle->CleaningUp) {
315 timeout = datalink_StartDialTimer(dl, datalink_GetDialTimeout(dl));
316 bundle_Notify(dl->bundle, EX_REDIAL);
317 log_WritePrompts(dl, "Failed to open %s, pause %d seconds\n",
318 dl->physical->name.full, timeout);
324 case DATALINK_CARRIER:
325 /* Wait for carrier on the device */
326 switch (physical_AwaitCarrier(dl->physical)) {
327 case CARRIER_PENDING:
328 log_Printf(LogDEBUG, "Waiting for carrier\n");
329 return 0; /* A device timer is running to wake us up again */
332 if (dl->script.run) {
333 datalink_NewState(dl, DATALINK_LOGIN);
334 if (!chat_Setup(&dl->chat, dl->cfg.script.login, NULL))
335 log_Printf(LogWARN, "Invalid login script\n");
337 datalink_LoginDone(dl);
338 return datalink_UpdateSet(d, r, w, e, n);
341 physical_Offline(dl->physical); /* Is this required ? */
342 if (dl->script.run) {
343 datalink_NewState(dl, DATALINK_HANGUP);
344 if (!chat_Setup(&dl->chat, dl->cfg.script.hangup, NULL))
345 log_Printf(LogWARN, "Invalid hangup script\n");
346 return datalink_UpdateSet(d, r, w, e, n);
348 datalink_HangupDone(dl);
349 return 0; /* Maybe bundle_CleanDatalinks() has something to do */
353 case DATALINK_HANGUP:
355 case DATALINK_LOGOUT:
357 result = descriptor_UpdateSet(&dl->chat.desc, r, w, e, n);
358 switch (dl->chat.state) {
360 /* script succeeded */
362 case DATALINK_HANGUP:
363 datalink_HangupDone(dl);
366 datalink_NewState(dl, DATALINK_CARRIER);
367 return datalink_UpdateSet(d, r, w, e, n);
368 case DATALINK_LOGOUT:
369 datalink_NewState(dl, DATALINK_HANGUP);
370 physical_Offline(dl->physical);
371 if (!chat_Setup(&dl->chat, dl->cfg.script.hangup, NULL))
372 log_Printf(LogWARN, "Invalid hangup script\n");
373 return datalink_UpdateSet(d, r, w, e, n);
375 dl->phone.alt = NULL;
376 datalink_LoginDone(dl);
377 return datalink_UpdateSet(d, r, w, e, n);
381 /* Going down - script failed */
382 log_Printf(LogWARN, "Chat script failed\n");
384 case DATALINK_HANGUP:
385 datalink_HangupDone(dl);
388 case DATALINK_LOGOUT:
390 datalink_NewState(dl, DATALINK_HANGUP);
391 physical_Offline(dl->physical);
392 if (!chat_Setup(&dl->chat, dl->cfg.script.hangup, NULL))
393 log_Printf(LogWARN, "Invalid hangup script\n");
394 return datalink_UpdateSet(d, r, w, e, n);
405 result = descriptor_UpdateSet(&dl->chap.desc, r, w, e, n) +
406 descriptor_UpdateSet(&dl->physical->desc, r, w, e, n);
413 datalink_RemoveFromSet(struct datalink *dl, fd_set *r, fd_set *w, fd_set *e)
415 return physical_RemoveFromSet(dl->physical, r, w, e);
419 datalink_IsSet(struct fdescriptor *d, const fd_set *fdset)
421 struct datalink *dl = descriptor2datalink(d);
424 case DATALINK_CLOSED:
425 case DATALINK_OPENING:
428 case DATALINK_HANGUP:
430 case DATALINK_LOGOUT:
432 return descriptor_IsSet(&dl->chat.desc, fdset);
439 return descriptor_IsSet(&dl->chap.desc, fdset) ? 1 :
440 descriptor_IsSet(&dl->physical->desc, fdset);
446 datalink_Read(struct fdescriptor *d, struct bundle *bundle, const fd_set *fdset)
448 struct datalink *dl = descriptor2datalink(d);
451 case DATALINK_CLOSED:
452 case DATALINK_OPENING:
455 case DATALINK_HANGUP:
457 case DATALINK_LOGOUT:
459 descriptor_Read(&dl->chat.desc, bundle, fdset);
467 if (descriptor_IsSet(&dl->chap.desc, fdset))
468 descriptor_Read(&dl->chap.desc, bundle, fdset);
469 if (descriptor_IsSet(&dl->physical->desc, fdset))
470 descriptor_Read(&dl->physical->desc, bundle, fdset);
476 datalink_Write(struct fdescriptor *d, struct bundle *bundle,
479 struct datalink *dl = descriptor2datalink(d);
483 case DATALINK_CLOSED:
484 case DATALINK_OPENING:
487 case DATALINK_HANGUP:
489 case DATALINK_LOGOUT:
491 if ((result = descriptor_Write(&dl->chat.desc, bundle, fdset)) == -1) {
492 datalink_ComeDown(dl, CLOSE_NORMAL);
502 if (descriptor_IsSet(&dl->chap.desc, fdset))
503 switch (descriptor_Write(&dl->chap.desc, bundle, fdset)) {
505 datalink_ComeDown(dl, CLOSE_NORMAL);
510 if (descriptor_IsSet(&dl->physical->desc, fdset))
511 switch (descriptor_Write(&dl->physical->desc, bundle, fdset)) {
513 datalink_ComeDown(dl, CLOSE_NORMAL);
525 datalink_ComeDown(struct datalink *dl, int how)
529 if (how == CLOSE_LCP)
530 datalink_DontHangup(dl);
531 else if (how == CLOSE_STAYDOWN)
532 datalink_StayDown(dl);
534 stayonline = dl->stayonline;
537 if (dl->state >= DATALINK_READY && stayonline) {
538 physical_StopDeviceTimer(dl->physical);
539 datalink_NewState(dl, DATALINK_READY);
540 } else if (dl->state != DATALINK_CLOSED && dl->state != DATALINK_HANGUP) {
541 physical_Offline(dl->physical);
542 if (dl->script.run && dl->state != DATALINK_OPENING) {
543 if (dl->state == DATALINK_LOGOUT) {
544 datalink_NewState(dl, DATALINK_HANGUP);
545 if (!chat_Setup(&dl->chat, dl->cfg.script.hangup, NULL))
546 log_Printf(LogWARN, "Invalid hangup script\n");
548 datalink_NewState(dl, DATALINK_LOGOUT);
549 if (!chat_Setup(&dl->chat, dl->cfg.script.logout, NULL))
550 log_Printf(LogWARN, "Invalid logout script\n");
553 datalink_HangupDone(dl);
558 datalink_LayerStart(void *v, struct fsm *fp)
560 /* The given FSM is about to start up ! */
561 struct datalink *dl = (struct datalink *)v;
563 if (fp->proto == PROTO_LCP)
564 (*dl->parent->LayerStart)(dl->parent->object, fp);
568 datalink_LayerUp(void *v, struct fsm *fp)
570 /* The given fsm is now up */
571 struct datalink *dl = (struct datalink *)v;
572 struct lcp *lcp = &dl->physical->link.lcp;
574 if (fp->proto == PROTO_LCP) {
575 datalink_GotAuthname(dl, "");
576 lcp->auth_ineed = lcp->want_auth;
577 lcp->auth_iwait = lcp->his_auth;
578 if (lcp->his_auth || lcp->want_auth) {
579 if (bundle_Phase(dl->bundle) != PHASE_NETWORK)
580 bundle_NewPhase(dl->bundle, PHASE_AUTHENTICATE);
581 log_Printf(LogPHASE, "%s: his = %s, mine = %s\n", dl->name,
582 Auth2Nam(lcp->his_auth, lcp->his_authtype),
583 Auth2Nam(lcp->want_auth, lcp->want_authtype));
584 if (lcp->his_auth == PROTO_PAP)
585 auth_StartReq(&dl->pap);
586 if (lcp->want_auth == PROTO_CHAP)
587 auth_StartReq(&dl->chap.auth);
590 } else if (fp->proto == PROTO_CCP)
591 (*dl->parent->LayerUp)(dl->parent->object, &dl->physical->link.ccp.fsm);
595 datalink_AuthReInit(struct datalink *dl)
597 auth_StopTimer(&dl->pap);
598 auth_StopTimer(&dl->chap.auth);
599 chap_ReInit(&dl->chap);
603 datalink_GotAuthname(struct datalink *dl, const char *name)
605 strncpy(dl->peer.authname, name, sizeof dl->peer.authname - 1);
606 dl->peer.authname[sizeof dl->peer.authname - 1] = '\0';
610 datalink_NCPUp(struct datalink *dl)
612 int ccpok = ccp_SetOpenMode(&dl->physical->link.ccp);
614 if (dl->physical->link.lcp.want_mrru && dl->physical->link.lcp.his_mrru) {
615 /* we've authenticated in multilink mode ! */
616 switch (mp_Up(&dl->bundle->ncp.mp, dl)) {
618 /* We've handed the link off to another ppp (well, we will soon) ! */
621 /* First link in the bundle */
622 auth_Select(dl->bundle, dl->peer.authname);
623 bundle_CalculateBandwidth(dl->bundle);
626 /* We're in multilink mode ! */
627 dl->physical->link.ccp.fsm.open_mode = OPEN_PASSIVE; /* override */
628 bundle_CalculateBandwidth(dl->bundle);
631 datalink_AuthNotOk(dl);
634 } else if (bundle_Phase(dl->bundle) == PHASE_NETWORK) {
635 log_Printf(LogPHASE, "%s: Already in NETWORK phase\n", dl->name);
636 datalink_NewState(dl, DATALINK_OPEN);
637 bundle_CalculateBandwidth(dl->bundle);
638 (*dl->parent->LayerUp)(dl->parent->object, &dl->physical->link.lcp.fsm);
641 dl->bundle->ncp.mp.peer = dl->peer;
642 ncp_SetLink(&dl->bundle->ncp, &dl->physical->link);
643 auth_Select(dl->bundle, dl->peer.authname);
647 fsm_Up(&dl->physical->link.ccp.fsm);
648 fsm_Open(&dl->physical->link.ccp.fsm);
650 datalink_NewState(dl, DATALINK_OPEN);
651 bundle_NewPhase(dl->bundle, PHASE_NETWORK);
652 (*dl->parent->LayerUp)(dl->parent->object, &dl->physical->link.lcp.fsm);
656 datalink_CBCPComplete(struct datalink *dl)
658 datalink_NewState(dl, DATALINK_LCP);
659 datalink_AuthReInit(dl);
660 fsm_Close(&dl->physical->link.lcp.fsm);
664 datalink_CBCPFailed(struct datalink *dl)
666 cbcp_Down(&dl->cbcp);
667 datalink_CBCPComplete(dl);
671 datalink_AuthOk(struct datalink *dl)
673 if ((dl->physical->link.lcp.his_callback.opmask &
674 CALLBACK_BIT(CALLBACK_CBCP) ||
675 dl->physical->link.lcp.want_callback.opmask &
676 CALLBACK_BIT(CALLBACK_CBCP)) &&
677 !(dl->physical->link.lcp.want_callback.opmask &
678 CALLBACK_BIT(CALLBACK_AUTH))) {
679 /* We must have agreed CBCP if AUTH isn't there any more */
680 datalink_NewState(dl, DATALINK_CBCP);
682 } else if (dl->physical->link.lcp.want_callback.opmask) {
684 log_Printf(LogPHASE, "%s: Shutdown and await peer callback\n", dl->name);
685 datalink_NewState(dl, DATALINK_LCP);
686 datalink_AuthReInit(dl);
687 fsm_Close(&dl->physical->link.lcp.fsm);
689 switch (dl->physical->link.lcp.his_callback.opmask) {
694 case CALLBACK_BIT(CALLBACK_AUTH):
695 auth_SetPhoneList(dl->peer.authname, dl->cbcp.fsm.phone,
696 sizeof dl->cbcp.fsm.phone);
697 if (*dl->cbcp.fsm.phone == '\0' || !strcmp(dl->cbcp.fsm.phone, "*")) {
698 log_Printf(LogPHASE, "%s: %s cannot be called back\n", dl->name,
700 *dl->cbcp.fsm.phone = '\0';
702 char *ptr = strchr(dl->cbcp.fsm.phone, ',');
704 *ptr = '\0'; /* Call back on the first number */
705 log_Printf(LogPHASE, "%s: Calling peer back on %s\n", dl->name,
707 dl->cbcp.required = 1;
709 dl->cbcp.fsm.delay = 0;
710 datalink_NewState(dl, DATALINK_LCP);
711 datalink_AuthReInit(dl);
712 fsm_Close(&dl->physical->link.lcp.fsm);
715 case CALLBACK_BIT(CALLBACK_E164):
716 strncpy(dl->cbcp.fsm.phone, dl->physical->link.lcp.his_callback.msg,
717 sizeof dl->cbcp.fsm.phone - 1);
718 dl->cbcp.fsm.phone[sizeof dl->cbcp.fsm.phone - 1] = '\0';
719 log_Printf(LogPHASE, "%s: Calling peer back on %s\n", dl->name,
721 dl->cbcp.required = 1;
722 dl->cbcp.fsm.delay = 0;
723 datalink_NewState(dl, DATALINK_LCP);
724 datalink_AuthReInit(dl);
725 fsm_Close(&dl->physical->link.lcp.fsm);
729 log_Printf(LogPHASE, "%s: Oops - Should have NAK'd peer callback !\n",
731 datalink_NewState(dl, DATALINK_LCP);
732 datalink_AuthReInit(dl);
733 fsm_Close(&dl->physical->link.lcp.fsm);
739 datalink_AuthNotOk(struct datalink *dl)
741 datalink_NewState(dl, DATALINK_LCP);
742 datalink_AuthReInit(dl);
743 fsm_Close(&dl->physical->link.lcp.fsm);
747 datalink_LayerDown(void *v, struct fsm *fp)
749 /* The given FSM has been told to come down */
750 struct datalink *dl = (struct datalink *)v;
752 if (fp->proto == PROTO_LCP) {
755 peerid_Init(&dl->peer);
756 fsm2initial(&dl->physical->link.ccp.fsm);
757 datalink_NewState(dl, DATALINK_LCP); /* before parent TLD */
758 (*dl->parent->LayerDown)(dl->parent->object, fp);
759 /* fall through (just in case) */
762 if (!dl->cbcp.required)
763 cbcp_Down(&dl->cbcp);
764 /* fall through (just in case) */
767 timer_Stop(&dl->pap.authtimer);
768 timer_Stop(&dl->chap.auth.authtimer);
770 datalink_NewState(dl, DATALINK_LCP);
771 datalink_AuthReInit(dl);
776 datalink_LayerFinish(void *v, struct fsm *fp)
778 /* The given fsm is now down */
779 struct datalink *dl = (struct datalink *)v;
781 if (fp->proto == PROTO_LCP) {
783 (*dl->parent->LayerFinish)(dl->parent->object, fp);
784 datalink_ComeDown(dl, CLOSE_NORMAL);
785 } else if (fp->state == ST_CLOSED && fp->open_mode == OPEN_PASSIVE)
786 fsm_Open(fp); /* CCP goes to ST_STOPPED */
790 datalink_Create(const char *name, struct bundle *bundle, int type)
794 dl = (struct datalink *)malloc(sizeof(struct datalink));
798 dl->desc.type = DATALINK_DESCRIPTOR;
799 dl->desc.UpdateSet = datalink_UpdateSet;
800 dl->desc.IsSet = datalink_IsSet;
801 dl->desc.Read = datalink_Read;
802 dl->desc.Write = datalink_Write;
804 dl->state = DATALINK_CLOSED;
806 *dl->cfg.script.dial = '\0';
807 *dl->cfg.script.login = '\0';
808 *dl->cfg.script.logout = '\0';
809 *dl->cfg.script.hangup = '\0';
810 *dl->cfg.phone.list = '\0';
811 *dl->phone.list = '\0';
812 dl->phone.next = NULL;
813 dl->phone.alt = NULL;
814 dl->phone.chosen = "N/A";
817 dl->script.packetmode = 1;
818 mp_linkInit(&dl->mp);
823 memset(&dl->dial.timer, '\0', sizeof dl->dial.timer);
826 dl->cfg.dial.max = 1;
827 dl->cfg.dial.next_timeout = DIAL_NEXT_TIMEOUT;
828 dl->cfg.dial.timeout = DIAL_TIMEOUT;
829 dl->cfg.dial.inc = 0;
830 dl->cfg.dial.maxinc = 10;
832 dl->reconnect_tries = 0;
833 dl->cfg.reconnect.max = 0;
834 dl->cfg.reconnect.timeout = RECONNECT_TIMEOUT;
836 dl->cfg.callback.opmask = 0;
837 dl->cfg.cbcp.delay = 0;
838 *dl->cfg.cbcp.phone = '\0';
839 dl->cfg.cbcp.fsmretry = DEF_FSMRETRY;
841 dl->name = strdup(name);
842 peerid_Init(&dl->peer);
843 dl->parent = &bundle->fsm;
844 dl->fsmp.LayerStart = datalink_LayerStart;
845 dl->fsmp.LayerUp = datalink_LayerUp;
846 dl->fsmp.LayerDown = datalink_LayerDown;
847 dl->fsmp.LayerFinish = datalink_LayerFinish;
848 dl->fsmp.object = dl;
850 if ((dl->physical = physical_Create(dl, type)) == NULL) {
856 pap_Init(&dl->pap, dl->physical);
857 chap_Init(&dl->chap, dl->physical);
858 cbcp_Init(&dl->cbcp, dl->physical);
860 memset(&dl->chat, '\0', sizeof dl->chat); /* Force buf{start,end} reset */
861 chat_Init(&dl->chat, dl->physical);
863 log_Printf(LogPHASE, "%s: Created in %s state\n",
864 dl->name, datalink_State(dl));
870 datalink_Clone(struct datalink *odl, const char *name)
874 dl = (struct datalink *)malloc(sizeof(struct datalink));
878 dl->desc.type = DATALINK_DESCRIPTOR;
879 dl->desc.UpdateSet = datalink_UpdateSet;
880 dl->desc.IsSet = datalink_IsSet;
881 dl->desc.Read = datalink_Read;
882 dl->desc.Write = datalink_Write;
884 dl->state = DATALINK_CLOSED;
886 memcpy(&dl->cfg, &odl->cfg, sizeof dl->cfg);
887 mp_linkInit(&dl->mp);
888 *dl->phone.list = '\0';
889 dl->phone.next = NULL;
890 dl->phone.alt = NULL;
891 dl->phone.chosen = "N/A";
892 dl->bundle = odl->bundle;
894 memset(&dl->dial.timer, '\0', sizeof dl->dial.timer);
896 dl->reconnect_tries = 0;
897 dl->name = strdup(name);
898 peerid_Init(&dl->peer);
899 dl->parent = odl->parent;
900 memcpy(&dl->fsmp, &odl->fsmp, sizeof dl->fsmp);
901 dl->fsmp.object = dl;
903 if ((dl->physical = physical_Create(dl, PHYS_INTERACTIVE)) == NULL) {
908 pap_Init(&dl->pap, dl->physical);
909 dl->pap.cfg = odl->pap.cfg;
911 chap_Init(&dl->chap, dl->physical);
912 dl->chap.auth.cfg = odl->chap.auth.cfg;
914 memcpy(&dl->physical->cfg, &odl->physical->cfg, sizeof dl->physical->cfg);
915 memcpy(&dl->physical->link.lcp.cfg, &odl->physical->link.lcp.cfg,
916 sizeof dl->physical->link.lcp.cfg);
917 memcpy(&dl->physical->link.ccp.cfg, &odl->physical->link.ccp.cfg,
918 sizeof dl->physical->link.ccp.cfg);
919 memcpy(&dl->physical->async.cfg, &odl->physical->async.cfg,
920 sizeof dl->physical->async.cfg);
922 cbcp_Init(&dl->cbcp, dl->physical);
924 memset(&dl->chat, '\0', sizeof dl->chat); /* Force buf{start,end} reset */
925 chat_Init(&dl->chat, dl->physical);
927 log_Printf(LogPHASE, "%s: Cloned in %s state\n",
928 dl->name, datalink_State(dl));
934 datalink_Destroy(struct datalink *dl)
936 struct datalink *result;
938 if (dl->state != DATALINK_CLOSED) {
939 log_Printf(LogERROR, "Oops, destroying a datalink in state %s\n",
942 case DATALINK_HANGUP:
945 chat_Finish(&dl->chat); /* Gotta blat the timers ! */
950 chat_Destroy(&dl->chat);
951 timer_Stop(&dl->dial.timer);
953 physical_Destroy(dl->physical);
961 datalink_Up(struct datalink *dl, int runscripts, int packetmode)
963 if (dl->physical->type & (PHYS_DIRECT|PHYS_DEDICATED))
968 case DATALINK_CLOSED:
969 if (bundle_Phase(dl->bundle) == PHASE_DEAD ||
970 bundle_Phase(dl->bundle) == PHASE_TERMINATE)
971 bundle_NewPhase(dl->bundle, PHASE_ESTABLISH);
972 datalink_NewState(dl, DATALINK_OPENING);
973 dl->reconnect_tries =
974 dl->physical->type == PHYS_DIRECT ? 0 : dl->cfg.reconnect.max;
975 dl->dial.tries = dl->cfg.dial.max;
976 dl->script.run = runscripts;
977 dl->script.packetmode = packetmode;
980 case DATALINK_OPENING:
981 if (!dl->script.run && runscripts)
988 if (!dl->script.packetmode && packetmode) {
989 dl->script.packetmode = 1;
990 if (dl->state == DATALINK_READY) {
992 datalink_NewState(dl, DATALINK_CARRIER);
1000 datalink_Close(struct datalink *dl, int how)
1003 switch (dl->state) {
1005 peerid_Init(&dl->peer);
1006 fsm2initial(&dl->physical->link.ccp.fsm);
1012 datalink_AuthReInit(dl);
1013 if (how == CLOSE_LCP)
1014 datalink_DontHangup(dl);
1015 else if (how == CLOSE_STAYDOWN)
1016 datalink_StayDown(dl);
1017 fsm_Close(&dl->physical->link.lcp.fsm);
1021 datalink_ComeDown(dl, how);
1026 datalink_Down(struct datalink *dl, int how)
1028 /* Carrier is lost */
1029 switch (dl->state) {
1031 peerid_Init(&dl->peer);
1032 fsm2initial(&dl->physical->link.ccp.fsm);
1038 fsm2initial(&dl->physical->link.lcp.fsm);
1039 if (dl->state == DATALINK_OPENING)
1040 return; /* we're doing a callback... */
1044 datalink_ComeDown(dl, how);
1049 datalink_StayDown(struct datalink *dl)
1051 dl->dial.tries = -1;
1052 dl->reconnect_tries = 0;
1057 datalink_DontHangup(struct datalink *dl)
1059 dl->dial.tries = -1;
1060 dl->reconnect_tries = 0;
1061 dl->stayonline = dl->state >= DATALINK_LCP ? 1 : 0;
1065 datalink_Show(struct cmdargs const *arg)
1067 prompt_Printf(arg->prompt, "Name: %s\n", arg->cx->name);
1068 prompt_Printf(arg->prompt, " State: %s\n",
1069 datalink_State(arg->cx));
1070 prompt_Printf(arg->prompt, " Peer name: ");
1071 if (*arg->cx->peer.authname)
1072 prompt_Printf(arg->prompt, "%s\n", arg->cx->peer.authname);
1073 else if (arg->cx->state == DATALINK_OPEN)
1074 prompt_Printf(arg->prompt, "None requested\n");
1076 prompt_Printf(arg->prompt, "N/A\n");
1077 prompt_Printf(arg->prompt, " Discriminator: %s\n",
1078 mp_Enddisc(arg->cx->peer.enddisc.class,
1079 arg->cx->peer.enddisc.address,
1080 arg->cx->peer.enddisc.len));
1082 prompt_Printf(arg->prompt, "\nDefaults:\n");
1083 prompt_Printf(arg->prompt, " Phone List: %s\n",
1084 arg->cx->cfg.phone.list);
1085 if (arg->cx->cfg.dial.max)
1086 prompt_Printf(arg->prompt, " Dial tries: %d, delay ",
1087 arg->cx->cfg.dial.max);
1089 prompt_Printf(arg->prompt, " Dial tries: infinite, delay ");
1090 if (arg->cx->cfg.dial.next_timeout >= 0)
1091 prompt_Printf(arg->prompt, "%ds/", arg->cx->cfg.dial.next_timeout);
1093 prompt_Printf(arg->prompt, "random/");
1094 if (arg->cx->cfg.dial.timeout >= 0)
1095 prompt_Printf(arg->prompt, "%ds\n", arg->cx->cfg.dial.timeout);
1097 prompt_Printf(arg->prompt, "random\n");
1098 prompt_Printf(arg->prompt, " Reconnect tries: %d, delay ",
1099 arg->cx->cfg.reconnect.max);
1100 if (arg->cx->cfg.reconnect.timeout > 0)
1101 prompt_Printf(arg->prompt, "%ds\n", arg->cx->cfg.reconnect.timeout);
1103 prompt_Printf(arg->prompt, "random\n");
1104 prompt_Printf(arg->prompt, " Callback %s ", arg->cx->physical->type ==
1105 PHYS_DIRECT ? "accepted: " : "requested:");
1106 if (!arg->cx->cfg.callback.opmask)
1107 prompt_Printf(arg->prompt, "none\n");
1111 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_NONE)) {
1112 prompt_Printf(arg->prompt, "none");
1115 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_AUTH)) {
1116 prompt_Printf(arg->prompt, "%sauth", comma ? ", " : "");
1119 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_E164)) {
1120 prompt_Printf(arg->prompt, "%sE.164", comma ? ", " : "");
1121 if (arg->cx->physical->type != PHYS_DIRECT)
1122 prompt_Printf(arg->prompt, " (%s)", arg->cx->cfg.callback.msg);
1125 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_CBCP)) {
1126 prompt_Printf(arg->prompt, "%scbcp\n", comma ? ", " : "");
1127 prompt_Printf(arg->prompt, " CBCP: delay: %ds\n",
1128 arg->cx->cfg.cbcp.delay);
1129 prompt_Printf(arg->prompt, " phone: ");
1130 if (!strcmp(arg->cx->cfg.cbcp.phone, "*")) {
1131 if (arg->cx->physical->type & PHYS_DIRECT)
1132 prompt_Printf(arg->prompt, "Caller decides\n");
1134 prompt_Printf(arg->prompt, "Dialback server decides\n");
1136 prompt_Printf(arg->prompt, "%s\n", arg->cx->cfg.cbcp.phone);
1137 prompt_Printf(arg->prompt, " timeout: %lds\n",
1138 arg->cx->cfg.cbcp.fsmretry);
1140 prompt_Printf(arg->prompt, "\n");
1143 prompt_Printf(arg->prompt, " Dial Script: %s\n",
1144 arg->cx->cfg.script.dial);
1145 prompt_Printf(arg->prompt, " Login Script: %s\n",
1146 arg->cx->cfg.script.login);
1147 prompt_Printf(arg->prompt, " Logout Script: %s\n",
1148 arg->cx->cfg.script.logout);
1149 prompt_Printf(arg->prompt, " Hangup Script: %s\n",
1150 arg->cx->cfg.script.hangup);
1155 datalink_SetReconnect(struct cmdargs const *arg)
1157 if (arg->argc == arg->argn+2) {
1158 arg->cx->cfg.reconnect.timeout = atoi(arg->argv[arg->argn]);
1159 arg->cx->cfg.reconnect.max = atoi(arg->argv[arg->argn+1]);
1166 datalink_SetRedial(struct cmdargs const *arg)
1168 const char *sep, *osep;
1169 int timeout, inc, maxinc, tries;
1171 if (arg->argc == arg->argn+1 || arg->argc == arg->argn+2) {
1172 if (strncasecmp(arg->argv[arg->argn], "random", 6) == 0 &&
1173 (arg->argv[arg->argn][6] == '\0' || arg->argv[arg->argn][6] == '.')) {
1174 arg->cx->cfg.dial.timeout = -1;
1177 timeout = atoi(arg->argv[arg->argn]);
1180 arg->cx->cfg.dial.timeout = timeout;
1182 log_Printf(LogWARN, "Invalid redial timeout\n");
1187 sep = strchr(arg->argv[arg->argn], '+');
1192 arg->cx->cfg.dial.inc = inc;
1194 log_Printf(LogWARN, "Invalid timeout increment\n");
1197 sep = strchr(sep, '-');
1199 maxinc = atoi(++sep);
1201 arg->cx->cfg.dial.maxinc = maxinc;
1203 log_Printf(LogWARN, "Invalid maximum timeout increments\n");
1207 /* Default timeout increment */
1208 arg->cx->cfg.dial.maxinc = 10;
1212 /* Default timeout increment & max increment */
1213 arg->cx->cfg.dial.inc = 0;
1214 arg->cx->cfg.dial.maxinc = 10;
1215 sep = arg->argv[arg->argn];
1218 sep = strchr(sep, '.');
1220 if (strcasecmp(++sep, "random") == 0) {
1221 arg->cx->cfg.dial.next_timeout = -1;
1224 timeout = atoi(sep);
1226 arg->cx->cfg.dial.next_timeout = timeout;
1228 log_Printf(LogWARN, "Invalid next redial timeout\n");
1233 /* Default next timeout */
1234 arg->cx->cfg.dial.next_timeout = DIAL_NEXT_TIMEOUT;
1236 if (arg->argc == arg->argn+2) {
1237 tries = atoi(arg->argv[arg->argn+1]);
1240 arg->cx->cfg.dial.max = tries;
1242 log_Printf(LogWARN, "Invalid retry value\n");
1252 static const char * const states[] = {
1268 datalink_State(struct datalink *dl)
1270 if (dl->state < 0 || dl->state >= sizeof states / sizeof states[0])
1272 return states[dl->state];
1276 datalink_NewState(struct datalink *dl, int state)
1278 if (state != dl->state) {
1279 if (state >= 0 && state < sizeof states / sizeof states[0]) {
1280 log_Printf(LogPHASE, "%s: %s -> %s\n", dl->name, datalink_State(dl),
1284 log_Printf(LogERROR, "%s: Can't enter state %d !\n", dl->name, state);
1289 iov2datalink(struct bundle *bundle, struct iovec *iov, int *niov, int maxiov,
1290 int fd, int *auxfd, int *nauxfd)
1292 struct datalink *dl, *cdl;
1293 struct fsm_retry copy;
1296 dl = (struct datalink *)iov[(*niov)++].iov_base;
1297 dl->name = iov[*niov].iov_base;
1299 if (dl->name[DATALINK_MAXNAME-1]) {
1300 dl->name[DATALINK_MAXNAME-1] = '\0';
1301 if (strlen(dl->name) == DATALINK_MAXNAME - 1)
1302 log_Printf(LogWARN, "Datalink name truncated to \"%s\"\n", dl->name);
1305 /* Make sure the name is unique ! */
1308 for (cdl = bundle->links; cdl; cdl = cdl->next)
1309 if (!strcasecmp(dl->name, cdl->name)) {
1311 free(datalink_NextName(dl));
1313 oname = datalink_NextName(dl);
1314 break; /* Keep renaming 'till we have no conflicts */
1319 log_Printf(LogPHASE, "Rename link %s to %s\n", oname, dl->name);
1322 dl->name = strdup(dl->name);
1323 free(iov[*niov].iov_base);
1327 dl->desc.type = DATALINK_DESCRIPTOR;
1328 dl->desc.UpdateSet = datalink_UpdateSet;
1329 dl->desc.IsSet = datalink_IsSet;
1330 dl->desc.Read = datalink_Read;
1331 dl->desc.Write = datalink_Write;
1333 mp_linkInit(&dl->mp);
1334 *dl->phone.list = '\0';
1335 dl->phone.next = NULL;
1336 dl->phone.alt = NULL;
1337 dl->phone.chosen = "N/A";
1339 dl->bundle = bundle;
1341 memset(&dl->dial.timer, '\0', sizeof dl->dial.timer);
1343 dl->reconnect_tries = 0;
1344 dl->parent = &bundle->fsm;
1345 dl->fsmp.LayerStart = datalink_LayerStart;
1346 dl->fsmp.LayerUp = datalink_LayerUp;
1347 dl->fsmp.LayerDown = datalink_LayerDown;
1348 dl->fsmp.LayerFinish = datalink_LayerFinish;
1349 dl->fsmp.object = dl;
1351 dl->physical = iov2physical(dl, iov, niov, maxiov, fd, auxfd, nauxfd);
1353 if (!dl->physical) {
1358 copy = dl->pap.cfg.fsm;
1359 pap_Init(&dl->pap, dl->physical);
1360 dl->pap.cfg.fsm = copy;
1362 copy = dl->chap.auth.cfg.fsm;
1363 chap_Init(&dl->chap, dl->physical);
1364 dl->chap.auth.cfg.fsm = copy;
1366 cbcp_Init(&dl->cbcp, dl->physical);
1368 memset(&dl->chat, '\0', sizeof dl->chat); /* Force buf{start,end} reset */
1369 chat_Init(&dl->chat, dl->physical);
1371 log_Printf(LogPHASE, "%s: Transferred in %s state\n",
1372 dl->name, datalink_State(dl));
1379 datalink2iov(struct datalink *dl, struct iovec *iov, int *niov, int maxiov,
1380 int *auxfd, int *nauxfd)
1382 /* If `dl' is NULL, we're allocating before a Fromiov() */
1386 timer_Stop(&dl->dial.timer);
1387 /* The following is purely for the sake of paranoia */
1388 cbcp_Down(&dl->cbcp);
1389 timer_Stop(&dl->pap.authtimer);
1390 timer_Stop(&dl->chap.auth.authtimer);
1393 if (*niov >= maxiov - 1) {
1394 log_Printf(LogERROR, "Toiov: No room for datalink !\n");
1402 iov[*niov].iov_base = (void *)dl;
1403 iov[(*niov)++].iov_len = sizeof *dl;
1404 iov[*niov].iov_base = dl ? realloc(dl->name, DATALINK_MAXNAME) : NULL;
1405 iov[(*niov)++].iov_len = DATALINK_MAXNAME;
1407 link_fd = physical2iov(dl ? dl->physical : NULL, iov, niov, maxiov, auxfd,
1410 if (link_fd == -1 && dl) {
1419 datalink_Rename(struct datalink *dl, const char *name)
1422 dl->physical->link.name = dl->name = strdup(name);
1426 datalink_NextName(struct datalink *dl)
1431 n = strlen(dl->name);
1432 name = (char *)malloc(n+3);
1433 for (f = n - 1; f >= 0; f--)
1434 if (!isdigit(dl->name[f]))
1436 n = sprintf(name, "%.*s-", dl->name[f] == '-' ? f : f + 1, dl->name);
1437 sprintf(name + n, "%d", atoi(dl->name + f + 1) + 1);
1440 /* our physical link name isn't updated (it probably isn't created yet) */
1445 datalink_SetMode(struct datalink *dl, int mode)
1447 if (!physical_SetMode(dl->physical, mode))
1449 if (dl->physical->type & (PHYS_DIRECT|PHYS_DEDICATED))
1451 if (dl->physical->type == PHYS_DIRECT)
1452 dl->reconnect_tries = 0;
1453 if (mode & (PHYS_DDIAL|PHYS_BACKGROUND|PHYS_FOREGROUND) &&
1454 dl->state <= DATALINK_READY)
1455 datalink_Up(dl, 1, 1);
1460 datalink_GetDialTimeout(struct datalink *dl)
1462 int result = dl->cfg.dial.timeout + dl->dial.incs * dl->cfg.dial.inc;
1464 if (dl->dial.incs < dl->cfg.dial.maxinc)