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 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_TERMINATE)
148 bundle_NewPhase(dl->bundle, PHASE_ESTABLISH);
149 } else if (dl->bundle->CleaningUp ||
150 (dl->physical->type == PHYS_DIRECT) ||
151 ((!dl->dial.tries || (dl->dial.tries < 0 && !dl->reconnect_tries)) &&
152 !(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)))) {
153 datalink_NewState(dl, DATALINK_CLOSED);
156 dl->reconnect_tries = 0;
157 bundle_LinkClosed(dl->bundle, dl);
158 if (!dl->bundle->CleaningUp)
159 datalink_StartDialTimer(dl, datalink_GetDialTimeout(dl));
161 datalink_NewState(dl, DATALINK_OPENING);
162 if (bundle_Phase(dl->bundle) != PHASE_TERMINATE)
163 bundle_NewPhase(dl->bundle, PHASE_ESTABLISH);
164 if (dl->dial.tries < 0) {
165 datalink_StartDialTimer(dl, dl->cfg.reconnect.timeout);
166 dl->dial.tries = dl->cfg.dial.max;
168 dl->reconnect_tries--;
170 if (dl->phone.next == NULL)
171 datalink_StartDialTimer(dl, datalink_GetDialTimeout(dl));
173 datalink_StartDialTimer(dl, dl->cfg.dial.next_timeout);
179 datalink_ChoosePhoneNumber(struct datalink *dl)
183 if (dl->phone.alt == NULL) {
184 if (dl->phone.next == NULL) {
185 strncpy(dl->phone.list, dl->cfg.phone.list, sizeof dl->phone.list - 1);
186 dl->phone.list[sizeof dl->phone.list - 1] = '\0';
187 if (*dl->phone.list == '\0')
189 dl->phone.next = dl->phone.list;
191 dl->phone.alt = strsep(&dl->phone.next, ":");
193 phone = strsep(&dl->phone.alt, "|");
194 dl->phone.chosen = *phone ? phone : "[NONE]";
196 log_Printf(LogPHASE, "Phone: %s\n", phone);
201 datalink_LoginDone(struct datalink *dl)
203 if (!dl->script.packetmode) {
206 datalink_NewState(dl, DATALINK_READY);
207 } else if (!physical_Raw(dl->physical)) {
209 log_Printf(LogWARN, "datalink_LoginDone: Not connected.\n");
210 if (dl->script.run) {
211 datalink_NewState(dl, DATALINK_HANGUP);
212 physical_Offline(dl->physical);
213 chat_Init(&dl->chat, dl->physical, dl->cfg.script.hangup, 1, NULL);
215 physical_StopDeviceTimer(dl->physical);
216 if (dl->physical->type == PHYS_DEDICATED)
217 /* force a redial timeout */
218 physical_Close(dl->physical);
219 datalink_HangupDone(dl);
225 hdlc_Init(&dl->physical->hdlc, &dl->physical->link.lcp);
226 async_Init(&dl->physical->async);
228 lcp_Setup(&dl->physical->link.lcp, dl->state == DATALINK_READY ?
229 0 : dl->physical->link.lcp.cfg.openmode);
230 ccp_Setup(&dl->physical->link.ccp);
232 datalink_NewState(dl, DATALINK_LCP);
233 fsm_Up(&dl->physical->link.lcp.fsm);
234 fsm_Open(&dl->physical->link.lcp.fsm);
239 datalink_UpdateSet(struct descriptor *d, fd_set *r, fd_set *w, fd_set *e,
242 struct datalink *dl = descriptor2datalink(d);
247 case DATALINK_CLOSED:
248 if ((dl->physical->type &
249 (PHYS_DIRECT|PHYS_DEDICATED|PHYS_BACKGROUND|PHYS_DDIAL)) &&
250 !dl->bundle->CleaningUp)
252 * Our first time in - DEDICATED & DDIAL never come down, and
253 * DIRECT & BACKGROUND get deleted when they enter DATALINK_CLOSED.
254 * Go to DATALINK_OPENING via datalink_Up() and fall through.
256 datalink_Up(dl, 1, 1);
261 case DATALINK_OPENING:
262 if (dl->dial.timer.state != TIMER_RUNNING) {
263 if (--dl->dial.tries < 0)
265 if (physical_Open(dl->physical, dl->bundle) >= 0) {
266 log_WritePrompts(dl, "%s: Entering terminal mode on %s\r\n"
267 "Type `~?' for help\r\n", dl->name,
268 dl->physical->name.full);
269 if (dl->script.run) {
270 datalink_NewState(dl, DATALINK_DIAL);
271 chat_Init(&dl->chat, dl->physical, dl->cfg.script.dial, 1,
272 *dl->cfg.script.dial ?
273 datalink_ChoosePhoneNumber(dl) : "");
274 if (!(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)) &&
276 log_Printf(LogCHAT, "%s: Dial attempt %u of %d\n",
277 dl->name, dl->cfg.dial.max - dl->dial.tries,
280 datalink_LoginDone(dl);
281 return datalink_UpdateSet(d, r, w, e, n);
283 if (!(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)) &&
285 log_Printf(LogCHAT, "Failed to open device (attempt %u of %d)\n",
286 dl->cfg.dial.max - dl->dial.tries, dl->cfg.dial.max);
288 log_Printf(LogCHAT, "Failed to open device\n");
290 if (dl->bundle->CleaningUp ||
291 (!(dl->physical->type & (PHYS_DDIAL|PHYS_DEDICATED)) &&
292 dl->cfg.dial.max && dl->dial.tries == 0)) {
293 datalink_NewState(dl, DATALINK_CLOSED);
294 dl->reconnect_tries = 0;
296 log_WritePrompts(dl, "Failed to open %s\n",
297 dl->physical->name.full);
298 bundle_LinkClosed(dl->bundle, dl);
300 if (!dl->bundle->CleaningUp) {
303 timeout = datalink_StartDialTimer(dl, datalink_GetDialTimeout(dl));
304 log_WritePrompts(dl, "Failed to open %s, pause %d seconds\n",
305 dl->physical->name.full, timeout);
311 case DATALINK_CARRIER:
312 /* Wait for carrier on the device */
313 switch (physical_AwaitCarrier(dl->physical)) {
314 case CARRIER_PENDING:
315 log_Printf(LogDEBUG, "Waiting for carrier\n");
316 return 0; /* A device timer is running to wake us up again */
319 datalink_NewState(dl, DATALINK_LOGIN);
320 chat_Init(&dl->chat, dl->physical, dl->cfg.script.login, 0, NULL);
321 return datalink_UpdateSet(d, r, w, e, n);
324 datalink_NewState(dl, DATALINK_HANGUP);
325 physical_Offline(dl->physical); /* Is this required ? */
326 chat_Init(&dl->chat, dl->physical, dl->cfg.script.hangup, 1, NULL);
327 return datalink_UpdateSet(d, r, w, e, n);
330 case DATALINK_HANGUP:
333 result = descriptor_UpdateSet(&dl->chat.desc, r, w, e, n);
334 switch (dl->chat.state) {
336 /* script succeeded */
337 chat_Destroy(&dl->chat);
339 case DATALINK_HANGUP:
340 datalink_HangupDone(dl);
343 datalink_NewState(dl, DATALINK_CARRIER);
344 return datalink_UpdateSet(d, r, w, e, n);
346 dl->phone.alt = NULL;
347 datalink_LoginDone(dl);
348 return datalink_UpdateSet(d, r, w, e, n);
352 /* Going down - script failed */
353 log_Printf(LogWARN, "Chat script failed\n");
354 chat_Destroy(&dl->chat);
356 case DATALINK_HANGUP:
357 datalink_HangupDone(dl);
361 datalink_NewState(dl, DATALINK_HANGUP);
362 physical_Offline(dl->physical); /* Is this required ? */
363 chat_Init(&dl->chat, dl->physical, dl->cfg.script.hangup,
365 return datalink_UpdateSet(d, r, w, e, n);
376 result = descriptor_UpdateSet(&dl->chap.desc, r, w, e, n) +
377 descriptor_UpdateSet(&dl->physical->desc, r, w, e, n);
384 datalink_RemoveFromSet(struct datalink *dl, fd_set *r, fd_set *w, fd_set *e)
386 return physical_RemoveFromSet(dl->physical, r, w, e);
390 datalink_IsSet(struct descriptor *d, const fd_set *fdset)
392 struct datalink *dl = descriptor2datalink(d);
395 case DATALINK_CLOSED:
396 case DATALINK_OPENING:
399 case DATALINK_HANGUP:
402 return descriptor_IsSet(&dl->chat.desc, fdset);
409 return descriptor_IsSet(&dl->chap.desc, fdset) ? 1 :
410 descriptor_IsSet(&dl->physical->desc, fdset);
416 datalink_Read(struct descriptor *d, struct bundle *bundle, const fd_set *fdset)
418 struct datalink *dl = descriptor2datalink(d);
421 case DATALINK_CLOSED:
422 case DATALINK_OPENING:
425 case DATALINK_HANGUP:
428 descriptor_Read(&dl->chat.desc, bundle, fdset);
436 if (descriptor_IsSet(&dl->chap.desc, fdset))
437 descriptor_Read(&dl->chap.desc, bundle, fdset);
438 if (descriptor_IsSet(&dl->physical->desc, fdset))
439 descriptor_Read(&dl->physical->desc, bundle, fdset);
445 datalink_Write(struct descriptor *d, struct bundle *bundle, const fd_set *fdset)
447 struct datalink *dl = descriptor2datalink(d);
451 case DATALINK_CLOSED:
452 case DATALINK_OPENING:
455 case DATALINK_HANGUP:
458 result = descriptor_Write(&dl->chat.desc, bundle, fdset);
466 if (descriptor_IsSet(&dl->chap.desc, fdset))
467 result += descriptor_Write(&dl->chap.desc, bundle, fdset);
468 if (descriptor_IsSet(&dl->physical->desc, fdset))
469 result += descriptor_Write(&dl->physical->desc, bundle, fdset);
477 datalink_ComeDown(struct datalink *dl, int how)
479 if (how != CLOSE_NORMAL) {
481 dl->reconnect_tries = 0;
482 if (dl->state >= DATALINK_READY && how == CLOSE_LCP)
486 if (dl->state >= DATALINK_READY && dl->stayonline) {
488 physical_StopDeviceTimer(dl->physical);
489 datalink_NewState(dl, DATALINK_READY);
490 } else if (dl->state != DATALINK_CLOSED && dl->state != DATALINK_HANGUP) {
491 physical_Offline(dl->physical);
492 chat_Destroy(&dl->chat);
493 if (dl->script.run && dl->state != DATALINK_OPENING) {
494 datalink_NewState(dl, DATALINK_HANGUP);
495 chat_Init(&dl->chat, dl->physical, dl->cfg.script.hangup, 1, NULL);
497 datalink_HangupDone(dl);
502 datalink_LayerStart(void *v, struct fsm *fp)
504 /* The given FSM is about to start up ! */
505 struct datalink *dl = (struct datalink *)v;
507 if (fp->proto == PROTO_LCP)
508 (*dl->parent->LayerStart)(dl->parent->object, fp);
512 datalink_LayerUp(void *v, struct fsm *fp)
514 /* The given fsm is now up */
515 struct datalink *dl = (struct datalink *)v;
516 struct lcp *lcp = &dl->physical->link.lcp;
518 if (fp->proto == PROTO_LCP) {
519 datalink_GotAuthname(dl, "");
520 lcp->auth_ineed = lcp->want_auth;
521 lcp->auth_iwait = lcp->his_auth;
522 if (lcp->his_auth || lcp->want_auth) {
523 if (bundle_Phase(dl->bundle) != PHASE_NETWORK)
524 bundle_NewPhase(dl->bundle, PHASE_AUTHENTICATE);
525 log_Printf(LogPHASE, "%s: his = %s, mine = %s\n", dl->name,
526 Auth2Nam(lcp->his_auth, lcp->his_authtype),
527 Auth2Nam(lcp->want_auth, lcp->want_authtype));
528 if (lcp->his_auth == PROTO_PAP)
529 auth_StartReq(&dl->pap);
530 if (lcp->want_auth == PROTO_CHAP)
531 auth_StartReq(&dl->chap.auth);
538 datalink_AuthReInit(struct datalink *dl)
540 auth_StopTimer(&dl->pap);
541 auth_StopTimer(&dl->chap.auth);
542 chap_ReInit(&dl->chap);
546 datalink_GotAuthname(struct datalink *dl, const char *name)
548 strncpy(dl->peer.authname, name, sizeof dl->peer.authname - 1);
549 dl->peer.authname[sizeof dl->peer.authname - 1] = '\0';
553 datalink_NCPUp(struct datalink *dl)
555 int ccpok = ccp_SetOpenMode(&dl->physical->link.ccp);
557 if (dl->physical->link.lcp.want_mrru && dl->physical->link.lcp.his_mrru) {
558 /* we've authenticated in multilink mode ! */
559 switch (mp_Up(&dl->bundle->ncp.mp, dl)) {
561 /* We've handed the link off to another ppp (well, we will soon) ! */
564 /* First link in the bundle */
565 auth_Select(dl->bundle, dl->peer.authname);
566 bundle_CalculateBandwidth(dl->bundle);
569 /* We're in multilink mode ! */
570 dl->physical->link.ccp.fsm.open_mode = OPEN_PASSIVE; /* override */
571 bundle_CalculateBandwidth(dl->bundle);
574 datalink_AuthNotOk(dl);
577 } else if (bundle_Phase(dl->bundle) == PHASE_NETWORK) {
578 log_Printf(LogPHASE, "%s: Already in NETWORK phase\n", dl->name);
579 datalink_NewState(dl, DATALINK_OPEN);
580 bundle_CalculateBandwidth(dl->bundle);
581 (*dl->parent->LayerUp)(dl->parent->object, &dl->physical->link.lcp.fsm);
584 dl->bundle->ncp.mp.peer = dl->peer;
585 ipcp_SetLink(&dl->bundle->ncp.ipcp, &dl->physical->link);
586 auth_Select(dl->bundle, dl->peer.authname);
590 fsm_Up(&dl->physical->link.ccp.fsm);
591 fsm_Open(&dl->physical->link.ccp.fsm);
593 datalink_NewState(dl, DATALINK_OPEN);
594 bundle_NewPhase(dl->bundle, PHASE_NETWORK);
595 (*dl->parent->LayerUp)(dl->parent->object, &dl->physical->link.lcp.fsm);
599 datalink_CBCPComplete(struct datalink *dl)
601 datalink_NewState(dl, DATALINK_LCP);
602 datalink_AuthReInit(dl);
603 fsm_Close(&dl->physical->link.lcp.fsm);
607 datalink_CBCPFailed(struct datalink *dl)
609 cbcp_Down(&dl->cbcp);
610 datalink_CBCPComplete(dl);
614 datalink_AuthOk(struct datalink *dl)
616 if ((dl->physical->link.lcp.his_callback.opmask &
617 CALLBACK_BIT(CALLBACK_CBCP) ||
618 dl->physical->link.lcp.want_callback.opmask &
619 CALLBACK_BIT(CALLBACK_CBCP)) &&
620 !(dl->physical->link.lcp.want_callback.opmask &
621 CALLBACK_BIT(CALLBACK_AUTH))) {
622 /* We must have agreed CBCP if AUTH isn't there any more */
623 datalink_NewState(dl, DATALINK_CBCP);
625 } else if (dl->physical->link.lcp.want_callback.opmask) {
627 log_Printf(LogPHASE, "%s: Shutdown and await peer callback\n", dl->name);
628 datalink_NewState(dl, DATALINK_LCP);
629 datalink_AuthReInit(dl);
630 fsm_Close(&dl->physical->link.lcp.fsm);
632 switch (dl->physical->link.lcp.his_callback.opmask) {
637 case CALLBACK_BIT(CALLBACK_AUTH):
638 auth_SetPhoneList(dl->peer.authname, dl->cbcp.fsm.phone,
639 sizeof dl->cbcp.fsm.phone);
640 if (*dl->cbcp.fsm.phone == '\0' || !strcmp(dl->cbcp.fsm.phone, "*")) {
641 log_Printf(LogPHASE, "%s: %s cannot be called back\n", dl->name,
643 *dl->cbcp.fsm.phone = '\0';
645 char *ptr = strchr(dl->cbcp.fsm.phone, ',');
647 *ptr = '\0'; /* Call back on the first number */
648 log_Printf(LogPHASE, "%s: Calling peer back on %s\n", dl->name,
650 dl->cbcp.required = 1;
652 dl->cbcp.fsm.delay = 0;
653 datalink_NewState(dl, DATALINK_LCP);
654 datalink_AuthReInit(dl);
655 fsm_Close(&dl->physical->link.lcp.fsm);
658 case CALLBACK_BIT(CALLBACK_E164):
659 strncpy(dl->cbcp.fsm.phone, dl->physical->link.lcp.his_callback.msg,
660 sizeof dl->cbcp.fsm.phone - 1);
661 dl->cbcp.fsm.phone[sizeof dl->cbcp.fsm.phone - 1] = '\0';
662 log_Printf(LogPHASE, "%s: Calling peer back on %s\n", dl->name,
664 dl->cbcp.required = 1;
665 dl->cbcp.fsm.delay = 0;
666 datalink_NewState(dl, DATALINK_LCP);
667 datalink_AuthReInit(dl);
668 fsm_Close(&dl->physical->link.lcp.fsm);
672 log_Printf(LogPHASE, "%s: Oops - Should have NAK'd peer callback !\n",
674 datalink_NewState(dl, DATALINK_LCP);
675 datalink_AuthReInit(dl);
676 fsm_Close(&dl->physical->link.lcp.fsm);
682 datalink_AuthNotOk(struct datalink *dl)
684 datalink_NewState(dl, DATALINK_LCP);
685 datalink_AuthReInit(dl);
686 fsm_Close(&dl->physical->link.lcp.fsm);
690 datalink_LayerDown(void *v, struct fsm *fp)
692 /* The given FSM has been told to come down */
693 struct datalink *dl = (struct datalink *)v;
695 if (fp->proto == PROTO_LCP) {
698 peerid_Init(&dl->peer);
699 fsm2initial(&dl->physical->link.ccp.fsm);
700 datalink_NewState(dl, DATALINK_LCP); /* before parent TLD */
701 (*dl->parent->LayerDown)(dl->parent->object, fp);
702 /* fall through (just in case) */
705 if (!dl->cbcp.required)
706 cbcp_Down(&dl->cbcp);
707 /* fall through (just in case) */
710 timer_Stop(&dl->pap.authtimer);
711 timer_Stop(&dl->chap.auth.authtimer);
713 datalink_NewState(dl, DATALINK_LCP);
714 datalink_AuthReInit(dl);
719 datalink_LayerFinish(void *v, struct fsm *fp)
721 /* The given fsm is now down */
722 struct datalink *dl = (struct datalink *)v;
724 if (fp->proto == PROTO_LCP) {
726 (*dl->parent->LayerFinish)(dl->parent->object, fp);
727 datalink_ComeDown(dl, CLOSE_NORMAL);
728 } else if (fp->state == ST_CLOSED && fp->open_mode == OPEN_PASSIVE)
729 fsm_Open(fp); /* CCP goes to ST_STOPPED */
733 datalink_Create(const char *name, struct bundle *bundle, int type)
737 dl = (struct datalink *)malloc(sizeof(struct datalink));
741 dl->desc.type = DATALINK_DESCRIPTOR;
742 dl->desc.UpdateSet = datalink_UpdateSet;
743 dl->desc.IsSet = datalink_IsSet;
744 dl->desc.Read = datalink_Read;
745 dl->desc.Write = datalink_Write;
747 dl->state = DATALINK_CLOSED;
749 *dl->cfg.script.dial = '\0';
750 *dl->cfg.script.login = '\0';
751 *dl->cfg.script.hangup = '\0';
752 *dl->cfg.phone.list = '\0';
753 *dl->phone.list = '\0';
754 dl->phone.next = NULL;
755 dl->phone.alt = NULL;
756 dl->phone.chosen = "N/A";
759 dl->script.packetmode = 1;
760 mp_linkInit(&dl->mp);
765 memset(&dl->dial.timer, '\0', sizeof dl->dial.timer);
768 dl->cfg.dial.max = 1;
769 dl->cfg.dial.next_timeout = DIAL_NEXT_TIMEOUT;
770 dl->cfg.dial.timeout = DIAL_TIMEOUT;
771 dl->cfg.dial.inc = 0;
772 dl->cfg.dial.maxinc = 10;
774 dl->reconnect_tries = 0;
775 dl->cfg.reconnect.max = 0;
776 dl->cfg.reconnect.timeout = RECONNECT_TIMEOUT;
778 dl->cfg.callback.opmask = 0;
779 dl->cfg.cbcp.delay = 0;
780 *dl->cfg.cbcp.phone = '\0';
781 dl->cfg.cbcp.fsmretry = DEF_FSMRETRY;
783 dl->name = strdup(name);
784 peerid_Init(&dl->peer);
785 dl->parent = &bundle->fsm;
786 dl->fsmp.LayerStart = datalink_LayerStart;
787 dl->fsmp.LayerUp = datalink_LayerUp;
788 dl->fsmp.LayerDown = datalink_LayerDown;
789 dl->fsmp.LayerFinish = datalink_LayerFinish;
790 dl->fsmp.object = dl;
792 if ((dl->physical = physical_Create(dl, type)) == NULL) {
798 pap_Init(&dl->pap, dl->physical);
799 chap_Init(&dl->chap, dl->physical);
800 cbcp_Init(&dl->cbcp, dl->physical);
801 chat_Init(&dl->chat, dl->physical, NULL, 1, NULL);
803 log_Printf(LogPHASE, "%s: Created in %s state\n",
804 dl->name, datalink_State(dl));
810 datalink_Clone(struct datalink *odl, const char *name)
814 dl = (struct datalink *)malloc(sizeof(struct datalink));
818 dl->desc.type = DATALINK_DESCRIPTOR;
819 dl->desc.UpdateSet = datalink_UpdateSet;
820 dl->desc.IsSet = datalink_IsSet;
821 dl->desc.Read = datalink_Read;
822 dl->desc.Write = datalink_Write;
824 dl->state = DATALINK_CLOSED;
826 memcpy(&dl->cfg, &odl->cfg, sizeof dl->cfg);
827 mp_linkInit(&dl->mp);
828 *dl->phone.list = '\0';
829 dl->phone.next = NULL;
830 dl->phone.alt = NULL;
831 dl->phone.chosen = "N/A";
832 dl->bundle = odl->bundle;
834 memset(&dl->dial.timer, '\0', sizeof dl->dial.timer);
836 dl->reconnect_tries = 0;
837 dl->name = strdup(name);
838 peerid_Init(&dl->peer);
839 dl->parent = odl->parent;
840 memcpy(&dl->fsmp, &odl->fsmp, sizeof dl->fsmp);
841 dl->fsmp.object = dl;
843 if ((dl->physical = physical_Create(dl, PHYS_INTERACTIVE)) == NULL) {
848 pap_Init(&dl->pap, dl->physical);
849 dl->pap.cfg = odl->pap.cfg;
851 chap_Init(&dl->chap, dl->physical);
852 dl->chap.auth.cfg = odl->chap.auth.cfg;
854 memcpy(&dl->physical->cfg, &odl->physical->cfg, sizeof dl->physical->cfg);
855 memcpy(&dl->physical->link.lcp.cfg, &odl->physical->link.lcp.cfg,
856 sizeof dl->physical->link.lcp.cfg);
857 memcpy(&dl->physical->link.ccp.cfg, &odl->physical->link.ccp.cfg,
858 sizeof dl->physical->link.ccp.cfg);
859 memcpy(&dl->physical->async.cfg, &odl->physical->async.cfg,
860 sizeof dl->physical->async.cfg);
862 cbcp_Init(&dl->cbcp, dl->physical);
863 chat_Init(&dl->chat, dl->physical, NULL, 1, NULL);
865 log_Printf(LogPHASE, "%s: Cloned in %s state\n",
866 dl->name, datalink_State(dl));
872 datalink_Destroy(struct datalink *dl)
874 struct datalink *result;
876 if (dl->state != DATALINK_CLOSED) {
877 log_Printf(LogERROR, "Oops, destroying a datalink in state %s\n",
880 case DATALINK_HANGUP:
883 chat_Destroy(&dl->chat); /* Gotta blat the timers ! */
888 timer_Stop(&dl->dial.timer);
890 physical_Destroy(dl->physical);
898 datalink_Up(struct datalink *dl, int runscripts, int packetmode)
900 if (dl->physical->type & (PHYS_DIRECT|PHYS_DEDICATED))
905 case DATALINK_CLOSED:
906 if (bundle_Phase(dl->bundle) == PHASE_DEAD ||
907 bundle_Phase(dl->bundle) == PHASE_TERMINATE)
908 bundle_NewPhase(dl->bundle, PHASE_ESTABLISH);
909 datalink_NewState(dl, DATALINK_OPENING);
910 dl->reconnect_tries =
911 dl->physical->type == PHYS_DIRECT ? 0 : dl->cfg.reconnect.max;
912 dl->dial.tries = dl->cfg.dial.max;
913 dl->script.run = runscripts;
914 dl->script.packetmode = packetmode;
917 case DATALINK_OPENING:
918 if (!dl->script.run && runscripts)
925 if (!dl->script.packetmode && packetmode) {
926 dl->script.packetmode = 1;
927 if (dl->state == DATALINK_READY)
928 datalink_LoginDone(dl);
935 datalink_Close(struct datalink *dl, int how)
940 peerid_Init(&dl->peer);
941 fsm2initial(&dl->physical->link.ccp.fsm);
947 datalink_AuthReInit(dl);
948 fsm_Close(&dl->physical->link.lcp.fsm);
949 if (how != CLOSE_NORMAL) {
951 dl->reconnect_tries = 0;
952 if (how == CLOSE_LCP)
958 datalink_ComeDown(dl, how);
963 datalink_Down(struct datalink *dl, int how)
965 /* Carrier is lost */
968 peerid_Init(&dl->peer);
969 fsm2initial(&dl->physical->link.ccp.fsm);
975 fsm2initial(&dl->physical->link.lcp.fsm);
979 datalink_ComeDown(dl, how);
984 datalink_StayDown(struct datalink *dl)
986 dl->reconnect_tries = 0;
990 datalink_DontHangup(struct datalink *dl)
992 if (dl->state >= DATALINK_LCP)
997 datalink_Show(struct cmdargs const *arg)
999 prompt_Printf(arg->prompt, "Name: %s\n", arg->cx->name);
1000 prompt_Printf(arg->prompt, " State: %s\n",
1001 datalink_State(arg->cx));
1002 prompt_Printf(arg->prompt, " Peer name: ");
1003 if (*arg->cx->peer.authname)
1004 prompt_Printf(arg->prompt, "%s\n", arg->cx->peer.authname);
1005 else if (arg->cx->state == DATALINK_OPEN)
1006 prompt_Printf(arg->prompt, "None requested\n");
1008 prompt_Printf(arg->prompt, "N/A\n");
1009 prompt_Printf(arg->prompt, " Discriminator: %s\n",
1010 mp_Enddisc(arg->cx->peer.enddisc.class,
1011 arg->cx->peer.enddisc.address,
1012 arg->cx->peer.enddisc.len));
1014 prompt_Printf(arg->prompt, "\nDefaults:\n");
1015 prompt_Printf(arg->prompt, " Phone List: %s\n",
1016 arg->cx->cfg.phone.list);
1017 if (arg->cx->cfg.dial.max)
1018 prompt_Printf(arg->prompt, " Dial tries: %d, delay ",
1019 arg->cx->cfg.dial.max);
1021 prompt_Printf(arg->prompt, " Dial tries: infinite, delay ");
1022 if (arg->cx->cfg.dial.next_timeout >= 0)
1023 prompt_Printf(arg->prompt, "%ds/", arg->cx->cfg.dial.next_timeout);
1025 prompt_Printf(arg->prompt, "random/");
1026 if (arg->cx->cfg.dial.timeout >= 0)
1027 prompt_Printf(arg->prompt, "%ds\n", arg->cx->cfg.dial.timeout);
1029 prompt_Printf(arg->prompt, "random\n");
1030 prompt_Printf(arg->prompt, " Reconnect tries: %d, delay ",
1031 arg->cx->cfg.reconnect.max);
1032 if (arg->cx->cfg.reconnect.timeout > 0)
1033 prompt_Printf(arg->prompt, "%ds\n", arg->cx->cfg.reconnect.timeout);
1035 prompt_Printf(arg->prompt, "random\n");
1036 prompt_Printf(arg->prompt, " Callback %s ", arg->cx->physical->type ==
1037 PHYS_DIRECT ? "accepted: " : "requested:");
1038 if (!arg->cx->cfg.callback.opmask)
1039 prompt_Printf(arg->prompt, "none\n");
1043 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_NONE)) {
1044 prompt_Printf(arg->prompt, "none");
1047 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_AUTH)) {
1048 prompt_Printf(arg->prompt, "%sauth", comma ? ", " : "");
1051 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_E164)) {
1052 prompt_Printf(arg->prompt, "%sE.164", comma ? ", " : "");
1053 if (arg->cx->physical->type != PHYS_DIRECT)
1054 prompt_Printf(arg->prompt, " (%s)", arg->cx->cfg.callback.msg);
1057 if (arg->cx->cfg.callback.opmask & CALLBACK_BIT(CALLBACK_CBCP)) {
1058 prompt_Printf(arg->prompt, "%scbcp\n", comma ? ", " : "");
1059 prompt_Printf(arg->prompt, " CBCP: delay: %ds\n",
1060 arg->cx->cfg.cbcp.delay);
1061 prompt_Printf(arg->prompt, " phone: ");
1062 if (!strcmp(arg->cx->cfg.cbcp.phone, "*")) {
1063 if (arg->cx->physical->type & PHYS_DIRECT)
1064 prompt_Printf(arg->prompt, "Caller decides\n");
1066 prompt_Printf(arg->prompt, "Dialback server decides\n");
1068 prompt_Printf(arg->prompt, "%s\n", arg->cx->cfg.cbcp.phone);
1069 prompt_Printf(arg->prompt, " timeout: %lds\n",
1070 arg->cx->cfg.cbcp.fsmretry);
1072 prompt_Printf(arg->prompt, "\n");
1075 prompt_Printf(arg->prompt, " Dial Script: %s\n",
1076 arg->cx->cfg.script.dial);
1077 prompt_Printf(arg->prompt, " Login Script: %s\n",
1078 arg->cx->cfg.script.login);
1079 prompt_Printf(arg->prompt, " Hangup Script: %s\n",
1080 arg->cx->cfg.script.hangup);
1085 datalink_SetReconnect(struct cmdargs const *arg)
1087 if (arg->argc == arg->argn+2) {
1088 arg->cx->cfg.reconnect.timeout = atoi(arg->argv[arg->argn]);
1089 arg->cx->cfg.reconnect.max = atoi(arg->argv[arg->argn+1]);
1096 datalink_SetRedial(struct cmdargs const *arg)
1098 const char *sep, *osep;
1099 int timeout, inc, maxinc, tries;
1101 if (arg->argc == arg->argn+1 || arg->argc == arg->argn+2) {
1102 if (strncasecmp(arg->argv[arg->argn], "random", 6) == 0 &&
1103 (arg->argv[arg->argn][6] == '\0' || arg->argv[arg->argn][6] == '.')) {
1104 arg->cx->cfg.dial.timeout = -1;
1107 timeout = atoi(arg->argv[arg->argn]);
1110 arg->cx->cfg.dial.timeout = timeout;
1112 log_Printf(LogWARN, "Invalid redial timeout\n");
1117 sep = strchr(arg->argv[arg->argn], '+');
1122 arg->cx->cfg.dial.inc = inc;
1124 log_Printf(LogWARN, "Invalid timeout increment\n");
1127 sep = strchr(sep, '-');
1129 maxinc = atoi(++sep);
1131 arg->cx->cfg.dial.maxinc = maxinc;
1133 log_Printf(LogWARN, "Invalid maximum timeout increments\n");
1137 /* Default timeout increment */
1138 arg->cx->cfg.dial.maxinc = 10;
1142 /* Default timeout increment & max increment */
1143 arg->cx->cfg.dial.inc = 0;
1144 arg->cx->cfg.dial.maxinc = 10;
1145 sep = arg->argv[arg->argn];
1148 sep = strchr(sep, '.');
1150 if (strcasecmp(++sep, "random") == 0) {
1151 arg->cx->cfg.dial.next_timeout = -1;
1154 timeout = atoi(sep);
1156 arg->cx->cfg.dial.next_timeout = timeout;
1158 log_Printf(LogWARN, "Invalid next redial timeout\n");
1163 /* Default next timeout */
1164 arg->cx->cfg.dial.next_timeout = DIAL_NEXT_TIMEOUT;
1166 if (arg->argc == arg->argn+2) {
1167 tries = atoi(arg->argv[arg->argn+1]);
1170 arg->cx->cfg.dial.max = tries;
1172 log_Printf(LogWARN, "Invalid retry value\n");
1182 static const char *states[] = {
1197 datalink_State(struct datalink *dl)
1199 if (dl->state < 0 || dl->state >= sizeof states / sizeof states[0])
1201 return states[dl->state];
1205 datalink_NewState(struct datalink *dl, int state)
1207 if (state != dl->state) {
1208 if (state >= 0 && state < sizeof states / sizeof states[0]) {
1209 log_Printf(LogPHASE, "%s: %s -> %s\n", dl->name, datalink_State(dl),
1213 log_Printf(LogERROR, "%s: Can't enter state %d !\n", dl->name, state);
1218 iov2datalink(struct bundle *bundle, struct iovec *iov, int *niov, int maxiov,
1221 struct datalink *dl, *cdl;
1222 struct fsm_retry copy;
1225 dl = (struct datalink *)iov[(*niov)++].iov_base;
1226 dl->name = iov[*niov].iov_base;
1228 if (dl->name[DATALINK_MAXNAME-1]) {
1229 dl->name[DATALINK_MAXNAME-1] = '\0';
1230 if (strlen(dl->name) == DATALINK_MAXNAME - 1)
1231 log_Printf(LogWARN, "Datalink name truncated to \"%s\"\n", dl->name);
1234 /* Make sure the name is unique ! */
1237 for (cdl = bundle->links; cdl; cdl = cdl->next)
1238 if (!strcasecmp(dl->name, cdl->name)) {
1240 free(datalink_NextName(dl));
1242 oname = datalink_NextName(dl);
1243 break; /* Keep renaming 'till we have no conflicts */
1248 log_Printf(LogPHASE, "Rename link %s to %s\n", oname, dl->name);
1251 dl->name = strdup(dl->name);
1252 free(iov[*niov].iov_base);
1256 dl->desc.type = DATALINK_DESCRIPTOR;
1257 dl->desc.UpdateSet = datalink_UpdateSet;
1258 dl->desc.IsSet = datalink_IsSet;
1259 dl->desc.Read = datalink_Read;
1260 dl->desc.Write = datalink_Write;
1262 mp_linkInit(&dl->mp);
1263 *dl->phone.list = '\0';
1264 dl->phone.next = NULL;
1265 dl->phone.alt = NULL;
1266 dl->phone.chosen = "N/A";
1268 dl->bundle = bundle;
1270 memset(&dl->dial.timer, '\0', sizeof dl->dial.timer);
1272 dl->reconnect_tries = 0;
1273 dl->parent = &bundle->fsm;
1274 dl->fsmp.LayerStart = datalink_LayerStart;
1275 dl->fsmp.LayerUp = datalink_LayerUp;
1276 dl->fsmp.LayerDown = datalink_LayerDown;
1277 dl->fsmp.LayerFinish = datalink_LayerFinish;
1278 dl->fsmp.object = dl;
1280 dl->physical = iov2physical(dl, iov, niov, maxiov, fd);
1282 if (!dl->physical) {
1287 copy = dl->pap.cfg.fsm;
1288 pap_Init(&dl->pap, dl->physical);
1289 dl->pap.cfg.fsm = copy;
1291 copy = dl->chap.auth.cfg.fsm;
1292 chap_Init(&dl->chap, dl->physical);
1293 dl->chap.auth.cfg.fsm = copy;
1295 cbcp_Init(&dl->cbcp, dl->physical);
1296 chat_Init(&dl->chat, dl->physical, NULL, 1, NULL);
1298 log_Printf(LogPHASE, "%s: Transferred in %s state\n",
1299 dl->name, datalink_State(dl));
1306 datalink2iov(struct datalink *dl, struct iovec *iov, int *niov, int maxiov,
1309 /* If `dl' is NULL, we're allocating before a Fromiov() */
1313 timer_Stop(&dl->dial.timer);
1314 /* The following is purely for the sake of paranoia */
1315 cbcp_Down(&dl->cbcp);
1316 timer_Stop(&dl->pap.authtimer);
1317 timer_Stop(&dl->chap.auth.authtimer);
1320 if (*niov >= maxiov - 1) {
1321 log_Printf(LogERROR, "Toiov: No room for datalink !\n");
1329 iov[*niov].iov_base = dl ? dl : malloc(sizeof *dl);
1330 iov[(*niov)++].iov_len = sizeof *dl;
1331 iov[*niov].iov_base =
1332 dl ? realloc(dl->name, DATALINK_MAXNAME) : malloc(DATALINK_MAXNAME);
1333 iov[(*niov)++].iov_len = DATALINK_MAXNAME;
1335 link_fd = physical2iov(dl ? dl->physical : NULL, iov, niov, maxiov, newpid);
1337 if (link_fd == -1 && dl) {
1346 datalink_Rename(struct datalink *dl, const char *name)
1349 dl->physical->link.name = dl->name = strdup(name);
1353 datalink_NextName(struct datalink *dl)
1358 n = strlen(dl->name);
1359 name = (char *)malloc(n+3);
1360 for (f = n - 1; f >= 0; f--)
1361 if (!isdigit(dl->name[f]))
1363 n = sprintf(name, "%.*s-", dl->name[f] == '-' ? f : f + 1, dl->name);
1364 sprintf(name + n, "%d", atoi(dl->name + f + 1) + 1);
1367 /* our physical link name isn't updated (it probably isn't created yet) */
1372 datalink_SetMode(struct datalink *dl, int mode)
1374 if (!physical_SetMode(dl->physical, mode))
1376 if (dl->physical->type & (PHYS_DIRECT|PHYS_DEDICATED))
1378 if (dl->physical->type == PHYS_DIRECT)
1379 dl->reconnect_tries = 0;
1380 if (mode & (PHYS_DDIAL|PHYS_BACKGROUND) && dl->state <= DATALINK_READY)
1381 datalink_Up(dl, 1, 1);
1386 datalink_GetDialTimeout(struct datalink *dl)
1388 int result = dl->cfg.dial.timeout + dl->dial.incs * dl->cfg.dial.inc;
1390 if (dl->dial.incs < dl->cfg.dial.maxinc)