From: Ido Schimmel <idosch@nvidia.com>
To: netdev@vger.kernel.org
Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com,
edumazet@google.com, dsahern@kernel.org, horms@kernel.org,
willemb@google.com, Ido Schimmel <idosch@nvidia.com>
Subject: [PATCH net-next v2 2/2] selftests: fib_tests: Add test cases for route lookup with oif
Date: Mon, 1 Jun 2026 09:53:00 +0300 [thread overview]
Message-ID: <20260601065300.267960-3-idosch@nvidia.com> (raw)
In-Reply-To: <20260601065300.267960-1-idosch@nvidia.com>
Test that both address families respect the oif parameter when a
matching multipath route is found, regardless of the presence of a
source address.
Output without "ipv6: Honor oif when choosing nexthop for locally
generated traffic":
# ./fib_tests.sh -t "ipv4_mpath_oif ipv4_mpath_oif_vrf ipv6_mpath_oif ipv6_mpath_oif_vrf"
IPv4 multipath oif test
TEST: IPv4 multipath via first nexthop [ OK ]
TEST: IPv4 multipath via second nexthop [ OK ]
TEST: IPv4 multipath via first nexthop with source address [ OK ]
TEST: IPv4 multipath via second nexthop with source address [ OK ]
IPv4 multipath oif with VRF test
TEST: IPv4 multipath via first nexthop [ OK ]
TEST: IPv4 multipath via second nexthop [ OK ]
TEST: IPv4 multipath via first nexthop with source address [ OK ]
TEST: IPv4 multipath via second nexthop with source address [ OK ]
IPv6 multipath oif test
TEST: IPv6 multipath via first nexthop [ OK ]
TEST: IPv6 multipath via second nexthop [ OK ]
TEST: IPv6 multipath via first nexthop with source address [FAIL]
TEST: IPv6 multipath via second nexthop with source address [FAIL]
IPv6 multipath oif with VRF test
TEST: IPv6 multipath via first nexthop [ OK ]
TEST: IPv6 multipath via second nexthop [ OK ]
TEST: IPv6 multipath via first nexthop with source address [FAIL]
TEST: IPv6 multipath via second nexthop with source address [FAIL]
Tests passed: 12
Tests failed: 4
Output with "ipv6: Honor oif when choosing nexthop for locally generated
traffic":
# ./fib_tests.sh -t "ipv4_mpath_oif ipv4_mpath_oif_vrf ipv6_mpath_oif ipv6_mpath_oif_vrf"
IPv4 multipath oif test
TEST: IPv4 multipath via first nexthop [ OK ]
TEST: IPv4 multipath via second nexthop [ OK ]
TEST: IPv4 multipath via first nexthop with source address [ OK ]
TEST: IPv4 multipath via second nexthop with source address [ OK ]
IPv4 multipath oif with VRF test
TEST: IPv4 multipath via first nexthop [ OK ]
TEST: IPv4 multipath via second nexthop [ OK ]
TEST: IPv4 multipath via first nexthop with source address [ OK ]
TEST: IPv4 multipath via second nexthop with source address [ OK ]
IPv6 multipath oif test
TEST: IPv6 multipath via first nexthop [ OK ]
TEST: IPv6 multipath via second nexthop [ OK ]
TEST: IPv6 multipath via first nexthop with source address [ OK ]
TEST: IPv6 multipath via second nexthop with source address [ OK ]
IPv6 multipath oif with VRF test
TEST: IPv6 multipath via first nexthop [ OK ]
TEST: IPv6 multipath via second nexthop [ OK ]
TEST: IPv6 multipath via first nexthop with source address [ OK ]
TEST: IPv6 multipath via second nexthop with source address [ OK ]
Tests passed: 16
Tests failed: 0
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
tools/testing/selftests/net/fib_tests.sh | 183 ++++++++++++++++++++++-
1 file changed, 182 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh
index 8f10de0eb985..1b2e9a0b21d0 100755
--- a/tools/testing/selftests/net/fib_tests.sh
+++ b/tools/testing/selftests/net/fib_tests.sh
@@ -12,7 +12,9 @@ TESTS="unregister down carrier nexthop suppress ipv6_notify ipv4_notify \
ipv4_route_metrics ipv4_route_v6_gw rp_filter ipv4_del_addr \
ipv6_del_addr ipv4_mangle ipv6_mangle ipv4_bcast_neigh fib6_gc_test \
ipv4_mpath_list ipv6_mpath_list ipv4_mpath_balance ipv6_mpath_balance \
- ipv4_mpath_balance_preferred fib6_ra_to_static fib6_temp_addr_renewal"
+ ipv4_mpath_balance_preferred ipv4_mpath_oif ipv4_mpath_oif_vrf \
+ ipv6_mpath_oif ipv6_mpath_oif_vrf fib6_ra_to_static \
+ fib6_temp_addr_renewal"
VERBOSE=0
PAUSE_ON_FAIL=no
@@ -2971,6 +2973,181 @@ ipv6_mpath_balance_test()
forwarding_cleanup
}
+ipv4_mpath_oif_test_common()
+{
+ local get_param=$1; shift
+ local expected_oif=$1; shift
+ local test_name=$1; shift
+ local tmp_file
+
+ tmp_file=$(mktemp)
+
+ for i in {1..100}; do
+ $IP route get 203.0.113.${i} $get_param >> "$tmp_file"
+ done
+
+ [[ $(grep "$expected_oif" "$tmp_file" | wc -l) -eq 100 ]]
+ log_test $? 0 "$test_name"
+
+ rm "$tmp_file"
+}
+
+ipv4_mpath_oif_test()
+{
+ echo
+ echo "IPv4 multipath oif test"
+
+ setup
+
+ set -e
+ $IP link add dummy1 up type dummy
+ $IP address add 192.0.2.1/28 dev dummy1
+ $IP address add 192.0.2.17/32 dev lo
+
+ $IP route add 203.0.113.0/24 \
+ nexthop via 198.51.100.2 dev dummy0 \
+ nexthop via 192.0.2.2 dev dummy1
+ set +e
+
+ ipv4_mpath_oif_test_common "oif dummy0" "dummy0" \
+ "IPv4 multipath via first nexthop"
+
+ ipv4_mpath_oif_test_common "oif dummy1" "dummy1" \
+ "IPv4 multipath via second nexthop"
+
+ ipv4_mpath_oif_test_common "oif dummy0 from 192.0.2.17" "dummy0" \
+ "IPv4 multipath via first nexthop with source address"
+
+ ipv4_mpath_oif_test_common "oif dummy1 from 192.0.2.17" "dummy1" \
+ "IPv4 multipath via second nexthop with source address"
+
+ cleanup
+}
+
+ipv4_mpath_oif_vrf_test()
+{
+ echo
+ echo "IPv4 multipath oif with VRF test"
+
+ setup
+
+ set -e
+ $IP -4 rule add pref 32765 table local
+ $IP -4 rule del pref 0
+ $IP link add name vrf-123 up type vrf table 123
+ $IP link set dev dummy0 master vrf-123
+ $IP link add dummy1 up master vrf-123 type dummy
+ $IP address add 192.0.2.1/28 dev dummy1
+ $IP address add 192.0.2.17/32 dev vrf-123
+
+ $IP route add 203.0.113.0/24 vrf vrf-123 \
+ nexthop via 198.51.100.2 dev dummy0 \
+ nexthop via 192.0.2.2 dev dummy1
+ set +e
+
+ ipv4_mpath_oif_test_common "oif dummy0" "dummy0" \
+ "IPv4 multipath via first nexthop"
+
+ ipv4_mpath_oif_test_common "oif dummy1" "dummy1" \
+ "IPv4 multipath via second nexthop"
+
+ ipv4_mpath_oif_test_common "oif dummy0 from 192.0.2.17" "dummy0" \
+ "IPv4 multipath via first nexthop with source address"
+
+ ipv4_mpath_oif_test_common "oif dummy1 from 192.0.2.17" "dummy1" \
+ "IPv4 multipath via second nexthop with source address"
+
+ cleanup
+}
+
+ipv6_mpath_oif_test_common()
+{
+ local get_param=$1; shift
+ local expected_oif=$1; shift
+ local test_name=$1; shift
+ local tmp_file
+
+ tmp_file=$(mktemp)
+
+ for i in {1..100}; do
+ $IP route get 2001:db8:10::${i} $get_param >> "$tmp_file"
+ done
+
+ [[ $(grep "$expected_oif" "$tmp_file" | wc -l) -eq 100 ]]
+ log_test $? 0 "$test_name"
+
+ rm "$tmp_file"
+}
+
+ipv6_mpath_oif_test()
+{
+ echo
+ echo "IPv6 multipath oif test"
+
+ setup
+
+ set -e
+ $IP link add dummy1 up type dummy
+ $IP address add 2001:db8:2::1/64 dev dummy1
+ $IP address add 2001:db8:100::1/128 dev lo
+
+ $IP route add 2001:db8:10::/64 \
+ nexthop via 2001:db8:1::2 dev dummy0 \
+ nexthop via 2001:db8:2::2 dev dummy1
+ set +e
+
+ ipv6_mpath_oif_test_common "oif dummy0" "dummy0" \
+ "IPv6 multipath via first nexthop"
+
+ ipv6_mpath_oif_test_common "oif dummy1" "dummy1" \
+ "IPv6 multipath via second nexthop"
+
+ ipv6_mpath_oif_test_common "oif dummy0 from 2001:db8:100::1" "dummy0" \
+ "IPv6 multipath via first nexthop with source address"
+
+ ipv6_mpath_oif_test_common "oif dummy1 from 2001:db8:100::1" "dummy1" \
+ "IPv6 multipath via second nexthop with source address"
+
+ cleanup
+}
+
+ipv6_mpath_oif_vrf_test()
+{
+ echo
+ echo "IPv6 multipath oif with VRF test"
+
+ setup
+
+ set -e
+ $NS_EXEC sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+ $IP -6 rule add pref 32765 table local
+ $IP -6 rule del pref 0
+ $IP link add name vrf-123 up type vrf table 123
+ $IP link set dev dummy0 master vrf-123
+ $IP link add dummy1 up master vrf-123 type dummy
+ $IP address add 2001:db8:2::1/64 dev dummy1
+ $IP address add 2001:db8:100::1/128 dev vrf-123
+
+ $IP route add 2001:db8:10::/64 vrf vrf-123 \
+ nexthop via 2001:db8:1::2 dev dummy0 \
+ nexthop via 2001:db8:2::2 dev dummy1
+ set +e
+
+ ipv6_mpath_oif_test_common "oif dummy0" "dummy0" \
+ "IPv6 multipath via first nexthop"
+
+ ipv6_mpath_oif_test_common "oif dummy1" "dummy1" \
+ "IPv6 multipath via second nexthop"
+
+ ipv6_mpath_oif_test_common "oif dummy0 from 2001:db8:100::1" "dummy0" \
+ "IPv6 multipath via first nexthop with source address"
+
+ ipv6_mpath_oif_test_common "oif dummy1 from 2001:db8:100::1" "dummy1" \
+ "IPv6 multipath via second nexthop with source address"
+
+ cleanup
+}
+
################################################################################
# usage
@@ -3057,6 +3234,10 @@ do
ipv4_mpath_balance) ipv4_mpath_balance_test;;
ipv6_mpath_balance) ipv6_mpath_balance_test;;
ipv4_mpath_balance_preferred) ipv4_mpath_balance_preferred_test;;
+ ipv4_mpath_oif) ipv4_mpath_oif_test;;
+ ipv4_mpath_oif_vrf) ipv4_mpath_oif_vrf_test;;
+ ipv6_mpath_oif) ipv6_mpath_oif_test;;
+ ipv6_mpath_oif_vrf) ipv6_mpath_oif_vrf_test;;
fib6_ra_to_static) fib6_ra_to_static;;
fib6_temp_addr_renewal) fib6_temp_addr_renewal;;
--
2.54.0
prev parent reply other threads:[~2026-06-01 6:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-01 6:52 [PATCH net-next v2 0/2] ipv6: Honor oif when choosing nexthop for locally generated traffic Ido Schimmel
2026-06-01 6:52 ` [PATCH net-next v2 1/2] " Ido Schimmel
2026-06-01 6:53 ` Ido Schimmel [this message]
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