tests: fix l3mdev config in bgp_vrf_lite_ipv6_rtadv topotest

Signed-off-by: David Schweizer <dschweizer@opensourcerouting.org>

diff --git a/tests/topotests/bgp_vrf_lite_ipv6_rtadv/test_bgp_vrf_lite_ipv6_rtadv.py b/tests/topotests/bgp_vrf_lite_ipv6_rtadv/test_bgp_vrf_lite_ipv6_rtadv.py
index 5d8c80c6a2a272e5122d4929eb8c142b16225386..4551ed37d4c0de7972a08e75bbf8890a9f9effd7 100644 (file)
--- a/tests/topotests/bgp_vrf_lite_ipv6_rtadv/test_bgp_vrf_lite_ipv6_rtadv.py
+++ b/tests/topotests/bgp_vrf_lite_ipv6_rtadv/test_bgp_vrf_lite_ipv6_rtadv.py
@@ -42,6 +42,7 @@ sys.path.append(os.path.join(CWD, "../"))
 from lib import topotest
 from lib.topogen import Topogen, TopoRouter, get_topogen
 from lib.topolog import logger
+from lib.common_config import adjust_router_l3mdev
 
 # Required to instantiate the topology builder class.
 from mininet.topo import Topo
@@ -71,22 +72,6 @@ def setup_module(mod):
     router_list = tgen.routers()
 
     logger.info("Testing with VRF Lite support")
-    krel = platform.release()
-
-    # May need to adjust handling of vrf traffic depending on kernel version
-    l3mdev_accept = 0
-    if (
-        topotest.version_cmp(krel, "4.15") >= 0
-        and topotest.version_cmp(krel, "4.18") <= 0
-    ):
-        l3mdev_accept = 1
-
-    if topotest.version_cmp(krel, "5.0") >= 0:
-        l3mdev_accept = 1
-
-    logger.info(
-        "krel '{0}' setting net.ipv4.tcp_l3mdev_accept={1}".format(krel, l3mdev_accept)
-    )
 
     cmds = [
         "ip link add {0}-cust1 type vrf table 1001",
@@ -99,15 +84,8 @@ def setup_module(mod):
         for cmd in cmds:
             output = tgen.net[rname].cmd(cmd.format(rname))
 
-        output = tgen.net[rname].cmd("sysctl -n net.ipv4.tcp_l3mdev_accept")
-        logger.info(
-            "router {0}: existing tcp_l3mdev_accept was {1}".format(rname, output)
-        )
-
-        if l3mdev_accept:
-            output = tgen.net[rname].cmd(
-                "sysctl -w net.ipv4.tcp_l3mdev_accept={}".format(l3mdev_accept)
-            )
+        # adjust handling of vrf traffic
+        adjust_router_l3mdev(tgen, rname)
 
     for rname, router in router_list.iteritems():
         router.load_config(