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In the NDP tests we search explicitly for a guest address with prefix length 64. AFAICT this is an attempt to specifically find the SLAAC assigned address, rather than something assigned by other means. We can do that more explicitly by checking for .protocol == "kernel_ra". however. The SLAAC prefixes we assigned *will* always be 64-bit, that's hard-coded into our NDP implementation. RFC4862 doesn't really allow anything else since the interface identifiers for an Ethernet-like link are 64-bits. Let's actually verify that, rather than just assuming it, by extracting the prefix length assigned in the guest and checking it as well. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
35 lines
1.4 KiB
Plaintext
35 lines
1.4 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/ndp - 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 sipcalc grep cut
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htools ip jq sipcalc grep cut
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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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ns ip link set dev __IFNAME__ up
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# Wait for DAD to complete
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ns while ip -j -6 addr show tentative | jq -e '.[].addr_info'; do sleep 0.1; done
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test SLAAC: prefix
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nsout ADDR6 ip -j -6 addr show|jq -rM '[.[] | select(.ifname == "__IFNAME__").addr_info[] | select(.scope == "global" and .protocol == "kernel_ra") | .local + "/" + (.prefixlen | tostring)] | .[0]'
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nsout PREFIX6 sipcalc __ADDR6__ | grep prefix | cut -d' ' -f4
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hout HOST_ADDR6 ip -j -6 addr show|jq -rM ['.[] | select(.ifname == "__IFNAME__").addr_info[] | select(.scope == "global" and .deprecated != true).local] | .[0]'
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hout HOST_PREFIX6 sipcalc __HOST_ADDR6__/64 | grep prefix | cut -d' ' -f4
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check [ "__PREFIX6__" = "__HOST_PREFIX6__" ]
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test SLAAC: 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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