Commit 62480b99 authored by Martin Schiller's avatar Martin Schiller Committed by Jakub Kicinski

net/lapb: fix t1 timer handling for LAPB_STATE_0

1. DTE interface changes immediately to LAPB_STATE_1 and start sending
   SABM(E).

2. DCE interface sends N2-times DM and changes to LAPB_STATE_1
   afterwards if there is no response in the meantime.
Signed-off-by: default avatarMartin Schiller <ms@dev.tdt.de>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent a4989fa9
......@@ -85,11 +85,18 @@ static void lapb_t1timer_expiry(struct timer_list *t)
switch (lapb->state) {
/*
* If we are a DCE, keep going DM .. DM .. DM
* If we are a DCE, send DM up to N2 times, then switch to
* STATE_1 and send SABM(E).
*/
case LAPB_STATE_0:
if (lapb->mode & LAPB_DCE)
if (lapb->mode & LAPB_DCE &&
lapb->n2count != lapb->n2) {
lapb->n2count++;
lapb_send_control(lapb, LAPB_DM, LAPB_POLLOFF, LAPB_RESPONSE);
} else {
lapb->state = LAPB_STATE_1;
lapb_establish_data_link(lapb);
}
break;
/*
......
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