Commit a5114df6 authored by Vladimir Oltean's avatar Vladimir Oltean Committed by David S. Miller
Browse files

selftests: forwarding: add helper for retrieving IPv6 link-local address of interface 



Pinging an IPv6 link-local multicast address selects the link-local
unicast address of the interface as source, and we'd like to monitor for
that in tcpdump.

Add a helper to the forwarding library which retrieves the link-local
IPv6 address of an interface, to make that task easier.

Signed-off-by: default avatarVladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f23cddc7

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

+9 −0
Original line number Diff line number Diff line
@@ -868,6 +868,15 @@ mac_get() 
	ip -j link show dev $if_name | jq -r '.[]["address"]'

}



ipv6_lladdr_get()

{

	local if_name=$1



	ip -j addr show dev $if_name | \

		jq -r '.[]["addr_info"][] | select(.scope == "link").local' | \

		head -1

}



bridge_ageing_time_get()

{

	local bridge=$1