Signed-iff-by: David Gibson <david(a)gibson.dropbear.id.au>
---
test/tasst/__main__.py | 1 +
test/tasst/ndp.py | 106 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 107 insertions(+)
create mode 100644 test/tasst/ndp.py
diff --git a/test/tasst/__main__.py b/test/tasst/__main__.py
index 251edae5..92319d46 100644
--- a/test/tasst/__main__.py
+++ b/test/tasst/__main__.py
@@ -18,6 +18,7 @@ import exeter
MODULES = [
'cmdsite',
'ip',
+ 'ndp',
'transfer',
'unshare',
'veth',
diff --git a/test/tasst/ndp.py b/test/tasst/ndp.py
new file mode 100644
index 00000000..0ea2f75e
--- /dev/null
+++ b/test/tasst/ndp.py
@@ -0,0 +1,106 @@
+#! /usr/bin/env avocado-runner-avocado-classless
+
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright Red Hat
+# Author: David Gibson <david(a)gibson.dropbear.id.au>
+
+"""
+Test A Simple Socket Transport
+
+ndp.py - Helpers for testing NDP
+"""
+
+import dataclasses
+import ipaddress
+import os
+import tempfile
+from typing import Iterator
+
+import exeter
+
+from . import cmdsite, ip, unshare, veth
+
+
+(a)dataclasses.dataclass
+class NdpScenario(exeter.Scenario):
+ client: cmdsite.CmdSite
+ ifname: str
+ network: ip.Net
+ gateway: ip.Addr
+
+ @exeter.scenariotest
+ def ndp_addr(self) -> None:
+ # Wait for NDP to do its thing
+ (addr,) = ip.addr_wait(self.client, self.ifname,
+ family='inet6', scope='global')
+
+ # The SLAAC address is derived from the guest ns MAC, so
+ # probably won't exactly match the host address (we need
+ # DHCPv6 for that). It should be in the right network though.
+ exeter.assert_eq(addr.network, self.network)
+
+ @exeter.scenariotest
+ def ndp_route(self) -> None:
+ defroutes = ip.routes6(self.client, dst='default')
+ while not defroutes:
+ defroutes = ip.routes6(self.client, dst='default')
+
+ exeter.assert_eq(len(defroutes), 1)
+ gw = ipaddress.ip_address(defroutes[0]['gateway'])
+ exeter.assert_eq(gw, self.gateway)
+
+
+IFNAME = 'clientif'
+NETWORK = ip.TEST_NET6_TASST_A
+ipa = ip.IpiAllocator(NETWORK)
+(ROUTER_IP6,) = ipa.next_ipis()
+
+
+def setup_radvd() -> Iterator[NdpScenario]:
+ router_ifname = 'routerif'
+
+ with unshare.unshare('client', '-Un') as client, \
+ unshare.unshare('router', '-n',
+ parent=client, privilege=True) as router, \
+ tempfile.TemporaryDirectory() as tmpdir, \
+ veth.veth(client, IFNAME, router_ifname, router):
+
+ # Configure the simulated router
+ confpath = os.path.join(tmpdir, 'radvd.conf')
+ pidfile = os.path.join(tmpdir, 'radvd.pid')
+ open(confpath, 'w', encoding='UTF-8').write(
+ f'''
+ interface {router_ifname} {{
+ AdvSendAdvert on;
+ prefix {NETWORK} {{
+ }};
+ }};
+ '''
+ )
+
+ ip.ifup(router, 'lo')
+ ip.ifup(router, 'routerif', ROUTER_IP6)
+
+ # Configure the client
+ ip.ifup(client, 'lo')
+ ip.ifup(client, IFNAME)
+
+ # Get the router's link-local-address
+ (router_ll,) = ip.addr_wait(router, router_ifname,
+ family='inet6', scope='link')
+
+ # Run radvd
+ router.fg('radvd', '-c', '-C',
f'{confpath}')
+ radvd_cmd = ['radvd', '-C', f'{confpath}',
'-n',
+ '-p', f'{pidfile}', '-d',
'5']
+ with router.bg(*radvd_cmd, privilege=True) as radvd:
+ yield NdpScenario(client=client,
+ ifname=IFNAME,
+ network=NETWORK,
+ gateway=router_ll.ip)
+ radvd.terminate()
+
+
+def selftests() -> None:
+ NdpScenario.test(setup_radvd)
--
2.46.0