struct timeval *
rtadvd_timer_rest(struct rtadvd_timer *rat)
{
static struct timeval returnval, now;
gettimeofday(&now, NULL);
if (TIMEVAL_LEQ(&rat->rat_tm, &now)) {
syslog(LOG_DEBUG,
"<%s> a timer must be expired, but not yet",
__func__);
returnval.tv_sec = returnval.tv_usec = 0;
}
else
TIMEVAL_SUB(&rat->rat_tm, &now, &returnval);
return (&returnval);
}
/*-----------------------------------------------------------------------
* Name : imp_source_is_scheduled
*
* Brief : check if source member is scheduled to be inlcuded
group source specific query
* Params : [in] p_is -- source member
[in] sflag -- 1:member's timer is greater than LMQT
0:member's timer is less than LMQT
* Return : 1:exsit 0:not exsit
*------------------------------------------------------------------------
*/
int imp_source_is_scheduled(imp_source *p_is, int sflag)
{
struct timeval lmqt;
if(TIMEVAL_ISZERO(p_is->timer->tm) || p_is->times == 0 )
return 0;
imp_time_val(TIMER_LMQT, &lmqt);
if(sflag == 1 && TIMEVAL_LT(lmqt, p_is->timer->tm))
return 1;
else if (sflag == 0 && TIMEVAL_LEQ(p_is->timer->tm, lmqt)) {
return 1;
}
return 0;
}
static struct timeval *
rtsol_check_timer(void)
{
static struct timeval returnval;
struct timeval now, rtsol_timer;
struct ifinfo *ifinfo;
int flags;
gettimeofday(&now, NULL);
rtsol_timer = tm_max;
for (ifinfo = iflist; ifinfo; ifinfo = ifinfo->next) {
if (TIMEVAL_LEQ(ifinfo->expire, now)) {
if (dflag > 1)
warnmsg(LOG_DEBUG, __func__,
"timer expiration on %s, "
"state = %d", ifinfo->ifname,
ifinfo->state);
switch (ifinfo->state) {
case IFS_DOWN:
case IFS_TENTATIVE:
/* interface_up returns 0 on success */
flags = interface_up(ifinfo->ifname);
if (flags == 0)
ifinfo->state = IFS_DELAY;
else if (flags == IFS_TENTATIVE)
ifinfo->state = IFS_TENTATIVE;
else
ifinfo->state = IFS_DOWN;
break;
case IFS_IDLE:
{
int oldstatus = ifinfo->active;
int probe = 0;
ifinfo->active =
interface_status(ifinfo);
if (oldstatus != ifinfo->active) {
warnmsg(LOG_DEBUG, __func__,
"%s status is changed"
" from %d to %d",
ifinfo->ifname,
oldstatus, ifinfo->active);
probe = 1;
ifinfo->state = IFS_DELAY;
}
else if (ifinfo->probeinterval &&
(ifinfo->probetimer -=
ifinfo->timer.tv_sec) <= 0) {
/* probe timer expired */
ifinfo->probetimer =
ifinfo->probeinterval;
probe = 1;
ifinfo->state = IFS_PROBE;
}
if (probe && mobile_node)
defrouter_probe(ifinfo->sdl->sdl_index);
break;
}
case IFS_DELAY:
ifinfo->state = IFS_PROBE;
sendpacket(ifinfo);
break;
case IFS_PROBE:
if (ifinfo->probes < MAX_RTR_SOLICITATIONS)
sendpacket(ifinfo);
else {
warnmsg(LOG_INFO, __func__,
"No answer "
"after sending %d RSs",
ifinfo->probes);
ifinfo->probes = 0;
ifinfo->state = IFS_IDLE;
}
break;
}
rtsol_timer_update(ifinfo);
}
if (TIMEVAL_LT(ifinfo->expire, rtsol_timer))
rtsol_timer = ifinfo->expire;
}
if (TIMEVAL_EQ(rtsol_timer, tm_max)) {
warnmsg(LOG_DEBUG, __func__, "there is no timer");
return(NULL);
}
else if (TIMEVAL_LT(rtsol_timer, now))
/* this may occur when the interval is too small */
returnval.tv_sec = returnval.tv_usec = 0;
else
TIMEVAL_SUB(&rtsol_timer, &now, &returnval);
if (dflag > 1)
warnmsg(LOG_DEBUG, __func__, "New timer is %ld:%08ld",
(long)returnval.tv_sec, (long)returnval.tv_usec);
return(&returnval);
}
