Commit fdd97314 authored by Fernando Fernandez Mancera's avatar Fernando Fernandez Mancera Committed by Paolo Abeni
Browse files

selftests: net: add ipv6 RA route to ECMP merge test 



As commit bbf4a17a ("ipv6: Fix ECMP sibling count mismatch when
clearing RTF_ADDRCONF") pointed out, RA routes are not elegible for ECMP
merging.

Add a test scenario mixing RA and static routes with gateway to check
that they are not getting merged.

Signed-off-by: default avatarFernando Fernandez Mancera <fmancera@suse.de>
Link: https://patch.msgid.link/20260313124827.3945-1-fmancera@suse.de


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent febe8012

tools/testing/selftests/net/config

+2 −0
Original line number Diff line number Diff line
@@ -43,6 +43,8 @@ CONFIG_IPV6_ILA=m 
CONFIG_IPV6_IOAM6_LWTUNNEL=y

CONFIG_IPV6_MROUTE=y

CONFIG_IPV6_MULTIPLE_TABLES=y

CONFIG_IPV6_ROUTE_INFO=y

CONFIG_IPV6_ROUTER_PREF=y

CONFIG_IPV6_RPL_LWTUNNEL=y

CONFIG_IPV6_SEG6_LWTUNNEL=y

CONFIG_IPV6_SIT=y

tools/testing/selftests/net/fib_tests.sh

+17 −0
Original line number Diff line number Diff line
@@ -1534,6 +1534,23 @@ fib6_ra_to_static() 


	log_test $ret 0 "ipv6 promote RA route to static"



	# Prepare for RA route with gateway

	$NS_EXEC sysctl -wq net.ipv6.conf.veth1.accept_ra_rt_info_max_plen=64



	# Add initial route to cause ECMP merging

	$IP -6 route add 2001:12::/64 via fe80::dead:beef dev veth1



	$NS_EXEC ra6 -i veth2 -d 2001:10::1 -R 2001:12::/64#1#120



	# Routes are not merged as RA routes are not elegible for ECMP

	check_rt_num 2 "$($IP -6 route list | grep -c "2001:12::/64 via")"



	$IP -6 route append 2001:12::/64 via fe80::dead:feeb dev veth1



	check_rt_num 2 "$($IP -6 route list | grep -c "nexthop via")"



	log_test "$ret" 0 "ipv6 RA route with nexthop do not merge into ECMP with static"



	set +e



	cleanup &> /dev/null