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https://github.com/kernelkit/infix.git
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Joachim Wiberg
1bbd80d8c7
Let's drop the leading IETF or Infix prefixes from tests. Initially the idea was to mimnic the YANG models, but it's difficult to navigate and does not provide any real benefit to developers or end-users. Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
83 lines
2.8 KiB
Python
Executable File
83 lines
2.8 KiB
Python
Executable File
#!/usr/bin/env python3
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"""DHCPv6 Prefix Delegation
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Verify DHCPv6 prefix delegation (IA_PD) where a client requests an IPv6
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prefix from a DHCPv6 server. This is commonly used on WAN interfaces of
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routers to obtain a prefix for distribution to downstream networks.
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"""
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import infamy, infamy.dhcp
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import infamy.iface as iface
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from infamy.util import until
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import time
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def checkrun(dut):
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"""Check DUT is running DHCPv6 client"""
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res = dut.runsh(f"pgrep -f 'udhcpc6.*{port}'")
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# print(f"Checking for udhcpc6: {res.stdout}")
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if res.stdout.strip() != "":
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return True
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return False
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def checklog(dut):
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"""Check syslog for prefix delegation message"""
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rc = dut.runsh("tail -10 /log/syslog | grep 'received delegated prefix'")
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# print(f"DHCPv6 client logs:\n{res.stdout}")
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if rc.stdout.strip() != "":
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return True
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return False
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with infamy.Test() as test:
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SERVER = '2001:db8::1'
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CLIENT = '2001:db8::42'
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PREFIX = '2001:db8:1::/48'
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with test.step("Set up topology and attach to target DUT"):
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env = infamy.Env()
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client = env.attach("client", "mgmt")
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tgtssh = env.attach("client", "mgmt", "ssh")
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_, host = env.ltop.xlate("host", "data")
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_, port = env.ltop.xlate("client", "data")
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with infamy.IsolatedMacVlan(host) as netns:
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netns.addip(SERVER, prefix_length=48, proto="ipv6")
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with infamy.dhcp.Server6Dhcpd(netns=netns,
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start="2001:db8::100",
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end="2001:db8::200",
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prefix="2001:db8:100::",
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prefix_len=64,
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dns="2001:db8::1",
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iface="iface",
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subnet="2001:db8::/48"):
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with test.step("Configure DHCPv6 client w/ prefix delegation"):
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config = {
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"interfaces": {
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"interface": [{
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"name": f"{port}",
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"ipv6": {
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"enabled": True,
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"infix-dhcpv6-client:dhcp": {
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"option": [
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{"id": "dns-server"},
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{"id": "ia-pd"}
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]
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}
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}
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}]
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}
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}
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client.put_config_dict("ietf-interfaces", config)
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with test.step("Verify DHCPv6 client is running"):
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until(lambda: checkrun(tgtssh))
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with test.step("Verify prefix delegation in logs"):
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until(lambda: checklog(tgtssh))
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test.succeed()
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