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If we run passt nested (a guest connected via passt to a guest
connected via passt to the host), the first guest (L1) typically has
two IPv6 addresses on the same interface: one formed from the prefix
assigned via SLAAC, and another one assigned via DHCPv6 (to match the
address on the host).
When we select addresses for comparison, in this case, we have
multiple global unicast addresses -- again, on the same interface.
Selecting the first reported one on both host and guest is not
entirely correct (in theory, the order might differ), but works
reasonably well.
Use the trick from 5beef08597 ("test: Only select a single
interface or gateway in tests") to ask jq(1) for the first address
returned by the query.
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
47 lines
1.8 KiB
Plaintext
47 lines
1.8 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-or-later
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#
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# PASST - Plug A Simple Socket Transport
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# for qemu/UNIX domain socket mode
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#
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# PASTA - Pack A Subtle Tap Abstraction
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# for network namespace/tap device mode
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#
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# test/pasta/dhcp - Check DHCP and DHCPv6 functionality in pasta mode
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#
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# Copyright (c) 2021 Red Hat GmbH
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# Author: Stefano Brivio <sbrivio@redhat.com>
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nstools ip jq /sbin/dhclient
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htools ip jq
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test Interface name
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nsout IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
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check [ -n "__IFNAME__" ]
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test DHCP: address
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ns /sbin/dhclient -4 --no-pid __IFNAME__
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nsout ADDR ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__IFNAME__").addr_info[0].local'
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hout HOST_ADDR ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__IFNAME__").addr_info[0].local'
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check [ __ADDR__ = __HOST_ADDR__ ]
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test DHCP: route
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nsout GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
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hout HOST_GW ip -j -4 route show|jq -rM '[.[] | select(.dst == "default").gateway] | .[0]'
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check [ __GW__ = __HOST_GW__ ]
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test DHCP: MTU
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nsout MTU ip -j link show | jq -rM '.[] | select(.ifname == "__IFNAME__").mtu'
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check [ __MTU__ = 65520 ]
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test DHCPv6: address
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ns /sbin/dhclient -6 --no-pid __IFNAME__
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hout HOST_IFNAME6 ip -j -6 route show|jq -rM '[.[] | select(.dst == "default").dev] | .[0]'
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nsout ADDR6 ip -j -6 addr show|jq -rM '[.[] | select(.ifname == "__IFNAME__").addr_info[] | select(.prefixlen == 128).local] | .[0]'
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hout HOST_ADDR6 ip -j -6 addr show|jq -rM '[.[] | select(.ifname == "__HOST_IFNAME6__").addr_info[] | select(.scope == "global").local] | .[0]'
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check [ __ADDR6__ = __HOST_ADDR6__ ]
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test DHCPv6: route
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nsout GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
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hout HOST_GW6 ip -j -6 route show|jq -rM '[.[] | select(.dst == "default").gateway] | .[0]'
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check [ __GW6__ = __HOST_GW6__ ]
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