Lines Matching defs:lapb
36 #include <net/lapb.h>
42 static void lapb_state0_machine(struct lapb_cb *lapb, struct sk_buff *skb,
48 printk(KERN_DEBUG "lapb: (%p) S0 RX SABM(%d)\n",
49 lapb->dev, frame->pf);
51 if (lapb->mode & LAPB_EXTENDED) {
53 printk(KERN_DEBUG "lapb: (%p) S0 TX DM(%d)\n",
54 lapb->dev, frame->pf);
56 lapb_send_control(lapb, LAPB_DM, frame->pf,
60 printk(KERN_DEBUG "lapb: (%p) S0 TX UA(%d)\n",
61 lapb->dev, frame->pf);
64 printk(KERN_DEBUG "lapb: (%p) S0 -> S3\n",
65 lapb->dev);
67 lapb_send_control(lapb, LAPB_UA, frame->pf,
69 lapb_stop_t1timer(lapb);
70 lapb_stop_t2timer(lapb);
71 lapb->state = LAPB_STATE_3;
72 lapb->condition = 0x00;
73 lapb->n2count = 0;
74 lapb->vs = 0;
75 lapb->vr = 0;
76 lapb->va = 0;
77 lapb_connect_indication(lapb, LAPB_OK);
83 printk(KERN_DEBUG "lapb: (%p) S0 RX SABME(%d)\n",
84 lapb->dev, frame->pf);
86 if (lapb->mode & LAPB_EXTENDED) {
88 printk(KERN_DEBUG "lapb: (%p) S0 TX UA(%d)\n",
89 lapb->dev, frame->pf);
92 printk(KERN_DEBUG "lapb: (%p) S0 -> S3\n",
93 lapb->dev);
95 lapb_send_control(lapb, LAPB_UA, frame->pf,
97 lapb_stop_t1timer(lapb);
98 lapb_stop_t2timer(lapb);
99 lapb->state = LAPB_STATE_3;
100 lapb->condition = 0x00;
101 lapb->n2count = 0;
102 lapb->vs = 0;
103 lapb->vr = 0;
104 lapb->va = 0;
105 lapb_connect_indication(lapb, LAPB_OK);
108 printk(KERN_DEBUG "lapb: (%p) S0 TX DM(%d)\n",
109 lapb->dev, frame->pf);
111 lapb_send_control(lapb, LAPB_DM, frame->pf,
118 printk(KERN_DEBUG "lapb: (%p) S0 RX DISC(%d)\n",
119 lapb->dev, frame->pf);
120 printk(KERN_DEBUG "lapb: (%p) S0 TX UA(%d)\n",
121 lapb->dev, frame->pf);
123 lapb_send_control(lapb, LAPB_UA, frame->pf,
138 static void lapb_state1_machine(struct lapb_cb *lapb, struct sk_buff *skb,
144 printk(KERN_DEBUG "lapb: (%p) S1 RX SABM(%d)\n",
145 lapb->dev, frame->pf);
147 if (lapb->mode & LAPB_EXTENDED) {
149 printk(KERN_DEBUG "lapb: (%p) S1 TX DM(%d)\n",
150 lapb->dev, frame->pf);
152 lapb_send_control(lapb, LAPB_DM, frame->pf,
156 printk(KERN_DEBUG "lapb: (%p) S1 TX UA(%d)\n",
157 lapb->dev, frame->pf);
159 lapb_send_control(lapb, LAPB_UA, frame->pf,
166 printk(KERN_DEBUG "lapb: (%p) S1 RX SABME(%d)\n",
167 lapb->dev, frame->pf);
169 if (lapb->mode & LAPB_EXTENDED) {
171 printk(KERN_DEBUG "lapb: (%p) S1 TX UA(%d)\n",
172 lapb->dev, frame->pf);
174 lapb_send_control(lapb, LAPB_UA, frame->pf,
178 printk(KERN_DEBUG "lapb: (%p) S1 TX DM(%d)\n",
179 lapb->dev, frame->pf);
181 lapb_send_control(lapb, LAPB_DM, frame->pf,
188 printk(KERN_DEBUG "lapb: (%p) S1 RX DISC(%d)\n",
189 lapb->dev, frame->pf);
190 printk(KERN_DEBUG "lapb: (%p) S1 TX DM(%d)\n",
191 lapb->dev, frame->pf);
193 lapb_send_control(lapb, LAPB_DM, frame->pf,
199 printk(KERN_DEBUG "lapb: (%p) S1 RX UA(%d)\n",
200 lapb->dev, frame->pf);
204 printk(KERN_DEBUG "lapb: (%p) S1 -> S3\n",
205 lapb->dev);
207 lapb_stop_t1timer(lapb);
208 lapb_stop_t2timer(lapb);
209 lapb->state = LAPB_STATE_3;
210 lapb->condition = 0x00;
211 lapb->n2count = 0;
212 lapb->vs = 0;
213 lapb->vr = 0;
214 lapb->va = 0;
215 lapb_connect_confirmation(lapb, LAPB_OK);
221 printk(KERN_DEBUG "lapb: (%p) S1 RX DM(%d)\n",
222 lapb->dev, frame->pf);
226 printk(KERN_DEBUG "lapb: (%p) S1 -> S0\n",
227 lapb->dev);
229 lapb_clear_queues(lapb);
230 lapb->state = LAPB_STATE_0;
231 lapb_start_t1timer(lapb);
232 lapb_stop_t2timer(lapb);
233 lapb_disconnect_indication(lapb, LAPB_REFUSED);
245 static void lapb_state2_machine(struct lapb_cb *lapb, struct sk_buff *skb,
252 printk(KERN_DEBUG "lapb: (%p) S2 RX {SABM,SABME}(%d)\n",
253 lapb->dev, frame->pf);
254 printk(KERN_DEBUG "lapb: (%p) S2 TX DM(%d)\n",
255 lapb->dev, frame->pf);
257 lapb_send_control(lapb, LAPB_DM, frame->pf,
263 printk(KERN_DEBUG "lapb: (%p) S2 RX DISC(%d)\n",
264 lapb->dev, frame->pf);
265 printk(KERN_DEBUG "lapb: (%p) S2 TX UA(%d)\n",
266 lapb->dev, frame->pf);
268 lapb_send_control(lapb, LAPB_UA, frame->pf,
274 printk(KERN_DEBUG "lapb: (%p) S2 RX UA(%d)\n",
275 lapb->dev, frame->pf);
279 printk(KERN_DEBUG "lapb: (%p) S2 -> S0\n",
280 lapb->dev);
282 lapb->state = LAPB_STATE_0;
283 lapb_start_t1timer(lapb);
284 lapb_stop_t2timer(lapb);
285 lapb_disconnect_confirmation(lapb, LAPB_OK);
291 printk(KERN_DEBUG "lapb: (%p) S2 RX DM(%d)\n",
292 lapb->dev, frame->pf);
296 printk(KERN_DEBUG "lapb: (%p) S2 -> S0\n",
297 lapb->dev);
299 lapb->state = LAPB_STATE_0;
300 lapb_start_t1timer(lapb);
301 lapb_stop_t2timer(lapb);
302 lapb_disconnect_confirmation(lapb,
312 printk(KERN_DEBUG "lapb: (%p) S2 RX {I,REJ,RNR,RR}"
313 "(%d)\n", lapb->dev, frame->pf);
314 printk(KERN_DEBUG "lapb: (%p) S2 RX DM(%d)\n",
315 lapb->dev, frame->pf);
318 lapb_send_control(lapb, LAPB_DM, frame->pf,
330 static void lapb_state3_machine(struct lapb_cb *lapb, struct sk_buff *skb,
334 int modulus = (lapb->mode & LAPB_EXTENDED) ? LAPB_EMODULUS :
340 printk(KERN_DEBUG "lapb: (%p) S3 RX SABM(%d)\n",
341 lapb->dev, frame->pf);
343 if (lapb->mode & LAPB_EXTENDED) {
345 printk(KERN_DEBUG "lapb: (%p) S3 TX DM(%d)\n",
346 lapb->dev, frame->pf);
348 lapb_send_control(lapb, LAPB_DM, frame->pf,
352 printk(KERN_DEBUG "lapb: (%p) S3 TX UA(%d)\n",
353 lapb->dev, frame->pf);
355 lapb_send_control(lapb, LAPB_UA, frame->pf,
357 lapb_stop_t1timer(lapb);
358 lapb_stop_t2timer(lapb);
359 lapb->condition = 0x00;
360 lapb->n2count = 0;
361 lapb->vs = 0;
362 lapb->vr = 0;
363 lapb->va = 0;
364 lapb_requeue_frames(lapb);
370 printk(KERN_DEBUG "lapb: (%p) S3 RX SABME(%d)\n",
371 lapb->dev, frame->pf);
373 if (lapb->mode & LAPB_EXTENDED) {
375 printk(KERN_DEBUG "lapb: (%p) S3 TX UA(%d)\n",
376 lapb->dev, frame->pf);
378 lapb_send_control(lapb, LAPB_UA, frame->pf,
380 lapb_stop_t1timer(lapb);
381 lapb_stop_t2timer(lapb);
382 lapb->condition = 0x00;
383 lapb->n2count = 0;
384 lapb->vs = 0;
385 lapb->vr = 0;
386 lapb->va = 0;
387 lapb_requeue_frames(lapb);
390 printk(KERN_DEBUG "lapb: (%p) S3 TX DM(%d)\n",
391 lapb->dev, frame->pf);
393 lapb_send_control(lapb, LAPB_DM, frame->pf,
400 printk(KERN_DEBUG "lapb: (%p) S3 RX DISC(%d)\n",
401 lapb->dev, frame->pf);
404 printk(KERN_DEBUG "lapb: (%p) S3 -> S0\n",
405 lapb->dev);
407 lapb_clear_queues(lapb);
408 lapb_send_control(lapb, LAPB_UA, frame->pf,
410 lapb_start_t1timer(lapb);
411 lapb_stop_t2timer(lapb);
412 lapb->state = LAPB_STATE_0;
413 lapb_disconnect_indication(lapb, LAPB_OK);
418 printk(KERN_DEBUG "lapb: (%p) S3 RX DM(%d)\n",
419 lapb->dev, frame->pf);
422 printk(KERN_DEBUG "lapb: (%p) S3 -> S0\n",
423 lapb->dev);
425 lapb_clear_queues(lapb);
426 lapb->state = LAPB_STATE_0;
427 lapb_start_t1timer(lapb);
428 lapb_stop_t2timer(lapb);
429 lapb_disconnect_indication(lapb, LAPB_NOTCONNECTED);
434 printk(KERN_DEBUG "lapb: (%p) S3 RX RNR(%d) R%d\n",
435 lapb->dev, frame->pf, frame->nr);
437 lapb->condition |= LAPB_PEER_RX_BUSY_CONDITION;
438 lapb_check_need_response(lapb, frame->cr, frame->pf);
439 if (lapb_validate_nr(lapb, frame->nr)) {
440 lapb_check_iframes_acked(lapb, frame->nr);
442 lapb->frmr_data = *frame;
443 lapb->frmr_type = LAPB_FRMR_Z;
444 lapb_transmit_frmr(lapb);
446 printk(KERN_DEBUG "lapb: (%p) S3 -> S4\n",
447 lapb->dev);
449 lapb_start_t1timer(lapb);
450 lapb_stop_t2timer(lapb);
451 lapb->state = LAPB_STATE_4;
452 lapb->n2count = 0;
458 printk(KERN_DEBUG "lapb: (%p) S3 RX RR(%d) R%d\n",
459 lapb->dev, frame->pf, frame->nr);
461 lapb->condition &= ~LAPB_PEER_RX_BUSY_CONDITION;
462 lapb_check_need_response(lapb, frame->cr, frame->pf);
463 if (lapb_validate_nr(lapb, frame->nr)) {
464 lapb_check_iframes_acked(lapb, frame->nr);
466 lapb->frmr_data = *frame;
467 lapb->frmr_type = LAPB_FRMR_Z;
468 lapb_transmit_frmr(lapb);
470 printk(KERN_DEBUG "lapb: (%p) S3 -> S4\n",
471 lapb->dev);
473 lapb_start_t1timer(lapb);
474 lapb_stop_t2timer(lapb);
475 lapb->state = LAPB_STATE_4;
476 lapb->n2count = 0;
482 printk(KERN_DEBUG "lapb: (%p) S3 RX REJ(%d) R%d\n",
483 lapb->dev, frame->pf, frame->nr);
485 lapb->condition &= ~LAPB_PEER_RX_BUSY_CONDITION;
486 lapb_check_need_response(lapb, frame->cr, frame->pf);
487 if (lapb_validate_nr(lapb, frame->nr)) {
488 lapb_frames_acked(lapb, frame->nr);
489 lapb_stop_t1timer(lapb);
490 lapb->n2count = 0;
491 lapb_requeue_frames(lapb);
493 lapb->frmr_data = *frame;
494 lapb->frmr_type = LAPB_FRMR_Z;
495 lapb_transmit_frmr(lapb);
497 printk(KERN_DEBUG "lapb: (%p) S3 -> S4\n",
498 lapb->dev);
500 lapb_start_t1timer(lapb);
501 lapb_stop_t2timer(lapb);
502 lapb->state = LAPB_STATE_4;
503 lapb->n2count = 0;
509 printk(KERN_DEBUG "lapb: (%p) S3 RX I(%d) S%d R%d\n",
510 lapb->dev, frame->pf, frame->ns, frame->nr);
512 if (!lapb_validate_nr(lapb, frame->nr)) {
513 lapb->frmr_data = *frame;
514 lapb->frmr_type = LAPB_FRMR_Z;
515 lapb_transmit_frmr(lapb);
517 printk(KERN_DEBUG "lapb: (%p) S3 -> S4\n",
518 lapb->dev);
520 lapb_start_t1timer(lapb);
521 lapb_stop_t2timer(lapb);
522 lapb->state = LAPB_STATE_4;
523 lapb->n2count = 0;
526 if (lapb->condition & LAPB_PEER_RX_BUSY_CONDITION)
527 lapb_frames_acked(lapb, frame->nr);
529 lapb_check_iframes_acked(lapb, frame->nr);
531 if (frame->ns == lapb->vr) {
533 cn = lapb_data_indication(lapb, skb);
547 lapb->vr = (lapb->vr + 1) % modulus;
548 lapb->condition &= ~LAPB_REJECT_CONDITION;
550 lapb_enquiry_response(lapb);
552 if (!(lapb->condition &
554 lapb->condition |= LAPB_ACK_PENDING_CONDITION;
555 lapb_start_t2timer(lapb);
559 if (lapb->condition & LAPB_REJECT_CONDITION) {
561 lapb_enquiry_response(lapb);
565 "lapb: (%p) S3 TX REJ(%d) R%d\n",
566 lapb->dev, frame->pf, lapb->vr);
568 lapb->condition |= LAPB_REJECT_CONDITION;
569 lapb_send_control(lapb, LAPB_REJ,
572 lapb->condition &= ~LAPB_ACK_PENDING_CONDITION;
579 printk(KERN_DEBUG "lapb: (%p) S3 RX FRMR(%d) %02X "
580 "%02X %02X %02X %02X\n", lapb->dev, frame->pf,
584 lapb_establish_data_link(lapb);
586 printk(KERN_DEBUG "lapb: (%p) S3 -> S1\n",
587 lapb->dev);
589 lapb_requeue_frames(lapb);
590 lapb->state = LAPB_STATE_1;
595 printk(KERN_DEBUG "lapb: (%p) S3 RX ILLEGAL(%d)\n",
596 lapb->dev, frame->pf);
598 lapb->frmr_data = *frame;
599 lapb->frmr_type = LAPB_FRMR_W;
600 lapb_transmit_frmr(lapb);
602 printk(KERN_DEBUG "lapb: (%p) S3 -> S4\n", lapb->dev);
604 lapb_start_t1timer(lapb);
605 lapb_stop_t2timer(lapb);
606 lapb->state = LAPB_STATE_4;
607 lapb->n2count = 0;
619 static void lapb_state4_machine(struct lapb_cb *lapb, struct sk_buff *skb,
625 printk(KERN_DEBUG "lapb: (%p) S4 RX SABM(%d)\n",
626 lapb->dev, frame->pf);
628 if (lapb->mode & LAPB_EXTENDED) {
630 printk(KERN_DEBUG "lapb: (%p) S4 TX DM(%d)\n",
631 lapb->dev, frame->pf);
633 lapb_send_control(lapb, LAPB_DM, frame->pf,
637 printk(KERN_DEBUG "lapb: (%p) S4 TX UA(%d)\n",
638 lapb->dev, frame->pf);
641 printk(KERN_DEBUG "lapb: (%p) S4 -> S3\n",
642 lapb->dev);
644 lapb_send_control(lapb, LAPB_UA, frame->pf,
646 lapb_stop_t1timer(lapb);
647 lapb_stop_t2timer(lapb);
648 lapb->state = LAPB_STATE_3;
649 lapb->condition = 0x00;
650 lapb->n2count = 0;
651 lapb->vs = 0;
652 lapb->vr = 0;
653 lapb->va = 0;
654 lapb_connect_indication(lapb, LAPB_OK);
660 printk(KERN_DEBUG "lapb: (%p) S4 RX SABME(%d)\n",
661 lapb->dev, frame->pf);
663 if (lapb->mode & LAPB_EXTENDED) {
665 printk(KERN_DEBUG "lapb: (%p) S4 TX UA(%d)\n",
666 lapb->dev, frame->pf);
669 printk(KERN_DEBUG "lapb: (%p) S4 -> S3\n",
670 lapb->dev);
672 lapb_send_control(lapb, LAPB_UA, frame->pf,
674 lapb_stop_t1timer(lapb);
675 lapb_stop_t2timer(lapb);
676 lapb->state = LAPB_STATE_3;
677 lapb->condition = 0x00;
678 lapb->n2count = 0;
679 lapb->vs = 0;
680 lapb->vr = 0;
681 lapb->va = 0;
682 lapb_connect_indication(lapb, LAPB_OK);
685 printk(KERN_DEBUG "lapb: (%p) S4 TX DM(%d)\n",
686 lapb->dev, frame->pf);
688 lapb_send_control(lapb, LAPB_DM, frame->pf,
700 void lapb_data_input(struct lapb_cb *lapb, struct sk_buff *skb)
704 if (lapb_decode(lapb, skb, &frame) < 0) {
709 switch (lapb->state) {
711 lapb_state0_machine(lapb, skb, &frame); break;
713 lapb_state1_machine(lapb, skb, &frame); break;
715 lapb_state2_machine(lapb, skb, &frame); break;
717 lapb_state3_machine(lapb, skb, &frame); break;
719 lapb_state4_machine(lapb, skb, &frame); break;
722 lapb_kick(lapb);