SYNCOOKIE_LIFETIME
time_uptime - SYNCOOKIE_LIFETIME) {
callout_schedule(&sc->secret.reseed, SYNCOOKIE_LIFETIME * hz);
-(SYNCOOKIE_LIFETIME + 1);
callout_reset(&V_tcp_syncache.secret.reseed, SYNCOOKIE_LIFETIME * hz,
#define TCP_SYNCACHE_PAUSE_TIME SYNCOOKIE_LIFETIME