netdev - RE: [RFC][PATCH] IP: Make ping sockets optional

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Message-ID: <063D6719AE5E284EB5DD2968C1650D6D0F6FD289@AcuExch.aculab.com>
Date:	Wed, 23 Apr 2014 16:05:07 +0000
From:	David Laight <David.Laight@...LAB.COM>
To:	'Ben Hutchings' <ben@...adent.org.uk>,
	netdev <netdev@...r.kernel.org>
CC:	Vasiliy Kulikov <segoon@...nwall.com>
Subject: RE: [RFC][PATCH] IP: Make ping sockets optional

From: Ben Hutchings
 
> ICMP ping sockets currently require a new ping binary and are only
> available after setting a sysctl.  The code adds about 10K to the
> (uncompressed) size of the kernel.  Make this optional and disable
> it by default.

10k seems a lot of code just to allow non-root programs to send and
receive ICMP echo requests.

I'd have thought that a few carefully places checks would allow the
normal 'ping' program (or applications using the same calls) work
without being root.

	David