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tests: Validating staticd v4-over-v6 nexthop

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Introducing do_ipv6_nexthop to static_simple topotest. The test
configures IPv4 routes with IPv6 nexthop and validates that via
inet6 is visible in the Linux Kernel

Signed-off-by: Christopher Dziomba <christopher.dziomba@telekom.de>
This commit is contained in:
Christopher Dziomba 2025-04-14 19:23:16 +02:00
parent 8fc41e81f0
commit 438360e2bd
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1 changed files with 16 additions and 4 deletions
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20
tests/topotests/static_simple/test_static_simple.py
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@ -111,6 +111,7 @@ def do_config_inner(
count,
add=True,
do_ipv6=False,
do_ipv6_nexthop=False,
do_sadr=False,
via=None,
vrf=None,
@ -129,6 +130,8 @@ def do_config_inner(
src_prefs = ["2001:db8:1111::/48", "2001:db8:2222::/48"]
elif do_ipv6:
super_prefs = ["2001::/48", "2002::/48"]
elif do_ipv6_nexthop:
super_prefs = ["11.0.0.0/8", "21.0.0.0/8"]
else:
super_prefs = ["10.0.0.0/8", "20.0.0.0/8"]
@ -142,11 +145,19 @@ def do_config_inner(
matchvia = f"dev {via}"
else:
if vrf:
via = "2102::2" if do_ipv6 else "102.0.0.2"
matchvia = f"via {via} dev r1-eth1"
via = "2102::2" if do_ipv6 or do_ipv6_nexthop else "102.0.0.2"
matchvia = (
f"via inet6 {via} dev r1-eth1"
if not do_ipv6 and do_ipv6_nexthop
else f"via {via} dev r1-eth1"
)
else:
via = "2101::2" if do_ipv6 else "101.0.0.2"
matchvia = f"via {via} dev r1-eth0"
via = "2101::2" if do_ipv6 or do_ipv6_nexthop else "101.0.0.2"
matchvia = (
f"via inet6 {via} dev r1-eth0"
if not do_ipv6 and do_ipv6_nexthop
else f"via {via} dev r1-eth0"
)
vrfdbg = " in vrf {}".format(vrf) if vrf else ""
logger.debug("{} {} static {} routes{}".format(optype, count, iptype, vrfdbg))
@ -201,6 +212,7 @@ def do_config_inner(
def do_config(*args, **kwargs):
do_config_inner(*args, do_ipv6=False, do_sadr=False, **kwargs)
do_config_inner(*args, do_ipv6=False, do_ipv6_nexthop=True, **kwargs)
do_config_inner(*args, do_ipv6=True, do_sadr=False, **kwargs)
do_config_inner(*args, do_ipv6=True, do_sadr=True, **kwargs)