Commit f5ae5778 authored May 03, 2018 by Petr Machata Committed by David S. Miller May 03, 2018

selftests: forwarding: lib: Add sysctl_set(), sysctl_restore()



Add two helper functions: sysctl_set() to change the value of a given
sysctl setting, and sysctl_restore() to change it back to what it was.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 41f40546

tools/testing/selftests/net/forwarding/lib.sh

+17 −0

Original line number	Diff line number	Diff line
		@@ -381,6 +381,23 @@ bridge_ageing_time_get()
		echo $((ageing_time / 100))
		}

		declare -A SYSCTL_ORIG
		sysctl_set()
		{
		local key=$1; shift
		local value=$1; shift

		SYSCTL_ORIG[$key]=$(sysctl -n $key)
		sysctl -qw $key=$value
		}

		sysctl_restore()
		{
		local key=$1; shift

		sysctl -qw $key=${SYSCTL_ORIG["$key"]}
		}

		forwarding_enable()
		{
		ipv4_fwd=$(sysctl -n net.ipv4.conf.all.forwarding)