do_ssh2_transport(ssh, "Initiating key re-exchange (timeout)", -1, NULL);
do_ssh2_transport(ssh, "timeout", -1, NULL);
static void ssh2_timer(void *ctx, long now){    Ssh ssh = (Ssh)ctx;    if (!ssh->kex_in_progress && ssh->cfg.ssh_rekey_time != 0 &&	now - ssh->next_rekey >= 0) {	do_ssh2_transport(ssh, "Initiating key re-exchange (timeout)",			  -1, NULL);    }}