Re: [PATCH net-next v2] ipv4: Add support to disable icmp timestamp

From: Weilong Chen <redacted>
Date: Mon, 13 May 2019 21:28:57 +0800

The remote host answers to an ICMP timestamp request.
This allows an attacker to know the time and date on your host.

This path is an another way contrast to iptables rules:
iptables -A input -p icmp --icmp-type timestamp-request -j DROP
iptables -A output -p icmp --icmp-type timestamp-reply -j DROP

Default is enabled.

enable:
	sysctl -w net.ipv4.icmp_timestamp_enable=1
disable
	sysctl -w net.ipv4.icmp_timestamp_enable=0
testing:
	hping3 --icmp --icmp-ts -V $IPADDR

Signed-off-by: Weilong Chen <redacted>

Premise is wrong, understanding of what ICMP timestamp value actually
is is inaccurate, and the solution is wrong.

No way I am applying this, sorry.