From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.ozlabs.org (mail.ozlabs.org [IPv6:2404:9400:2221:ea00::3]) by passt.top (Postfix) with ESMTPS id 28ED95A031A for ; Mon, 05 Aug 2024 14:37:15 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gibson.dropbear.id.au; s=202312; t=1722861425; bh=jvMoW00PJ3esNUHR3bWpeSWkHJjC40422LkP1qbMMxw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=P/hS4n4Y0CtkdN9Ytnf4D8DX7IWHLmjwqqdAS8ViymSA0G3XAs62LFqkq23Wk2pxL OfsFbkY992C941yAx+VswiqLQ5K9ezgGL6oIJ3bqv8zaNIcoMvfjhthQfo5JjBWEHP FG09OpN5+0kbAorgIZWVqRNWeTriqiAdFoendfwP6NRC2BZMrSFbkTDamjBn6sUncB KZ3pk6LxS7x2e6moTsoPdhmBW27qBNIwwnqw14opeAJIH/Ch1rihYYVpfHI4Kz3c+u vZWv98ixm3FQmI+pf6HwZ162s735vGf4Dnuwe5c0qW3UuHy7bLHXwyEwP98tcXMetK rGvQf6xDJWAdQ== Received: by gandalf.ozlabs.org (Postfix, from userid 1007) id 4WcwtT334Dz4x8B; Mon, 5 Aug 2024 22:37:05 +1000 (AEST) From: David Gibson To: Stefano Brivio , passt-dev@passt.top Subject: [PATCH v2 19/22] tasst: Helpers for testing NDP behaviour Date: Mon, 5 Aug 2024 22:36:58 +1000 Message-ID: <20240805123701.1720730-20-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240805123701.1720730-1-david@gibson.dropbear.id.au> References: <20240805123701.1720730-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-ID-Hash: KAC7YUYI4LRK66PCDZEMIXJ27RHOVXSE X-Message-ID-Hash: KAC7YUYI4LRK66PCDZEMIXJ27RHOVXSE X-MailFrom: dgibson@gandalf.ozlabs.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: Cleber Rosa , David Gibson X-Mailman-Version: 3.3.8 Precedence: list List-Id: Development discussion and patches for passt Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Signed-iff-by: David Gibson --- test/Makefile | 3 +- test/tasst/__main__.py | 2 +- test/tasst/ndp.py | 116 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 119 insertions(+), 2 deletions(-) create mode 100644 test/tasst/ndp.py diff --git a/test/Makefile b/test/Makefile index f3a3cc58..248329e5 100644 --- a/test/Makefile +++ b/test/Makefile @@ -72,7 +72,8 @@ EXETER_PY = build/build.py EXETER_JOBS = $(EXETER_SH:%.sh=%.json) $(EXETER_PY:%.py=%.json) AVOCADO_JOBS = $(EXETER_JOBS) avocado/static_checkers.json -TASST_SRCS = __init__.py __main__.py address.py nstool.py snh.py transfer.py \ +TASST_SRCS = __init__.py __main__.py address.py ndp.py nstool.py snh.py \ + transfer.py \ selftest/__init__.py selftest/static_ifup.py selftest/veth.py EXETER_META = meta/lint.json meta/tasst.json diff --git a/test/tasst/__main__.py b/test/tasst/__main__.py index 98a94011..6a95eec1 100644 --- a/test/tasst/__main__.py +++ b/test/tasst/__main__.py @@ -13,7 +13,7 @@ library of test helpers for passt & pasta import exeter # We import just to get the exeter tests, which flake8 can't see -from . import nstool, snh, transfer # noqa: F401 +from . import ndp, nstool, snh, transfer # noqa: F401 from .selftest import static_ifup, veth # noqa: F401 diff --git a/test/tasst/ndp.py b/test/tasst/ndp.py new file mode 100644 index 00000000..1c18385c --- /dev/null +++ b/test/tasst/ndp.py @@ -0,0 +1,116 @@ +#! /usr/bin/env avocado-runner-avocado-classless + +# SPDX-License-Identifier: GPL-2.0-or-later +# +# Copyright Red Hat +# Author: David Gibson + +""" +Test A Simple Socket Transport + +ndp.py - Helpers for testing NDP +""" + +import contextlib +import ipaddress +import os +import tempfile + +import exeter + +from . import address, nstool + + +class NdpTestScenario: + def __init__(self, *, client, ifname, network, gateway): + self.client = client + self.ifname = ifname + self.network = network + self.gateway = gateway + + +def test_ndp_addr(setup): + with setup as scn: + # Wait for NDP to do its thing + (addr,) = scn.client.addr_wait(scn.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, scn.network) + + +def test_ndp_route(setup): + with setup as scn: + defroutes = scn.client.routes6(dst='default') + while not defroutes: + defroutes = scn.client.routes6(dst='default') + + exeter.assert_eq(len(defroutes), 1) + gw = ipaddress.ip_address(defroutes[0]['gateway']) + exeter.assert_eq(gw, scn.gateway) + + +NDP_TESTS = [test_ndp_addr, test_ndp_route] + + +def ndp_tests(setup): + for t in NDP_TESTS: + testid = f'{setup.__qualname__}|{t.__qualname__}' + exeter.register_pipe(testid, setup, t) + + +IFNAME = 'clientif' +NETWORK = address.TEST_NET6_TASST_A +ipa = address.IpiAllocator(NETWORK) +(ROUTER_IP6,) = ipa.next_ipis() + + +@contextlib.contextmanager +def setup_radvd(): + router_ifname = 'routerif' + + with nstool.unshare_snh('client', '-Un') as client, \ + nstool.unshare_snh('router', '-n', + parent=client, capable=True) as router: + with tempfile.TemporaryDirectory() as tmpdir: + client.veth(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} {{ + }}; + }}; + ''' + ) + + router.ifup('lo') + router.ifup('routerif', ROUTER_IP6) + + # Configure the client + client.ifup('lo') + client.ifup(IFNAME) + + # Get the router's link-local-address + (router_ll,) = router.addr_wait(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, capable=True) as radvd: + yield NdpTestScenario(client=client, + ifname=IFNAME, + network=NETWORK, + gateway=router_ll.ip) + radvd.terminate() + + +ndp_tests(setup_radvd) -- 2.45.2