KEEPALIVE_TIMEOUT
REJECT_AFTER_TIME - KEEPALIVE_TIMEOUT - REKEY_TIMEOUT);
jiffies + (KEEPALIVE_TIMEOUT + REKEY_TIMEOUT) * HZ +
jiffies + KEEPALIVE_TIMEOUT * HZ);
jiffies + KEEPALIVE_TIMEOUT * HZ);
&peer->endpoint.addr, (int)(KEEPALIVE_TIMEOUT + REKEY_TIMEOUT));