static void
datalink_LayerDown(void *v, struct fsm *fp)
{
/* The given FSM has been told to come down */
struct datalink *dl = (struct datalink *)v;
if (fp->proto == PROTO_LCP) {
switch (dl->state) {
case DATALINK_OPEN:
peerid_Init(&dl->peer);
fsm2initial(&dl->physical->link.ccp.fsm);
datalink_NewState(dl, DATALINK_LCP); /* before parent TLD */
(*dl->parent->LayerDown)(dl->parent->object, fp);
/* FALLTHROUGH (just in case) */
case DATALINK_CBCP:
if (!dl->cbcp.required)
cbcp_Down(&dl->cbcp);
/* FALLTHROUGH (just in case) */
case DATALINK_AUTH:
timer_Stop(&dl->pap.authtimer);
timer_Stop(&dl->chap.auth.authtimer);
}
datalink_NewState(dl, DATALINK_LCP);
datalink_AuthReInit(dl);
}
}
void
datalink_Close(struct datalink *dl, int how)
{
/* Please close */
switch (dl->state) {
case DATALINK_OPEN:
peerid_Init(&dl->peer);
fsm2initial(&dl->physical->link.ccp.fsm);
/* FALLTHROUGH */
case DATALINK_CBCP:
case DATALINK_AUTH:
case DATALINK_LCP:
datalink_AuthReInit(dl);
if (how == CLOSE_LCP)
datalink_DontHangup(dl);
else if (how == CLOSE_STAYDOWN)
datalink_StayDown(dl);
fsm_Close(&dl->physical->link.lcp.fsm);
break;
default:
datalink_ComeDown(dl, how);
}
}
static void
datalink_LayerFinish(void *v, struct fsm *fp)
{
/* The given fsm is now down */
struct datalink *dl = (struct datalink *)v;
if (fp->proto == PROTO_LCP) {
fsm2initial(fp);
(*dl->parent->LayerFinish)(dl->parent->object, fp);
datalink_ComeDown(dl, CLOSE_NORMAL);
} else if (fp->state == ST_CLOSED && fp->open_mode == OPEN_PASSIVE)
fsm_Open(fp); /* CCP goes to ST_STOPPED */
}
void
datalink_Down(struct datalink *dl, int how)
{
/* Carrier is lost */
switch (dl->state) {
case DATALINK_OPEN:
peerid_Init(&dl->peer);
fsm2initial(&dl->physical->link.ccp.fsm);
/* FALLTHROUGH */
case DATALINK_CBCP:
case DATALINK_AUTH:
case DATALINK_LCP:
fsm2initial(&dl->physical->link.lcp.fsm);
if (dl->state == DATALINK_OPENING)
return; /* we're doing a callback... */
/* FALLTHROUGH */
default:
datalink_ComeDown(dl, how);
}
}
static void
StoppedTimeout(void *v)
{
struct fsm *fp = (struct fsm *)v;
log_Printf(fp->LogLevel, "%s: Stopped timer expired\n", fp->link->name);
if (fp->OpenTimer.state == TIMER_RUNNING) {
log_Printf(LogWARN, "%s: %s: aborting open delay due to stopped timer\n",
fp->link->name, fp->name);
timer_Stop(&fp->OpenTimer);
}
if (fp->state == ST_STOPPED)
fsm2initial(fp);
}
