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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>
81 lines
3.1 KiB
Plaintext
81 lines
3.1 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/two_guests/basic - Check basic functionality with two guests
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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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g1tools ip jq dhclient socat cat
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g2tools ip jq dhclient socat cat
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htools ip jq
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test Interface names
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g1out IFNAME1 ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
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g2out IFNAME2 ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
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hout HOST_IFNAME ip -j -4 route show|jq -rM '[.[] | select(.dst == "default").dev] | .[0]'
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hout HOST_IFNAME6 ip -j -6 route show|jq -rM '[.[] | select(.dst == "default").dev] | .[0]'
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check [ -n "__IFNAME1__" ]
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check [ -n "__IFNAME2__" ]
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test DHCP: addresses
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guest1 ip link set dev __IFNAME1__ up
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guest1 /sbin/dhclient -4 __IFNAME1__
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guest2 ip link set dev __IFNAME2__ up
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guest2 /sbin/dhclient -4 __IFNAME2__
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g1out ADDR1 ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__IFNAME1__").addr_info[0].local'
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g2out ADDR2 ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__IFNAME2__").addr_info[0].local'
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hout HOST_ADDR ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__HOST_IFNAME__").addr_info[0].local'
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check [ "__ADDR1__" = "__HOST_ADDR__" ]
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check [ "__ADDR2__" = "__HOST_ADDR__" ]
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test DHCPv6: addresses
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# Link is up now, wait for DAD to complete
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sleep 2
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guest1 /sbin/dhclient -6 __IFNAME1__
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guest2 /sbin/dhclient -6 __IFNAME2__
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g1out ADDR1_6 ip -j -6 addr show|jq -rM '[.[] | select(.ifname == "__IFNAME1__").addr_info[] | select(.prefixlen == 128).local] | .[0]'
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g2out ADDR2_6 ip -j -6 addr show|jq -rM '[.[] | select(.ifname == "__IFNAME2__").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 [ "__ADDR1_6__" = "__HOST_ADDR6__" ]
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check [ "__ADDR2_6__" = "__HOST_ADDR6__" ]
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test TCP/IPv4: guest 1 > guest 2
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g1out GW1 ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
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guest2b socat -u TCP4-LISTEN:10004 OPEN:msg,create,trunc
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guest1 echo "Hello_from_guest_1" | socat -u STDIN TCP4:__GW1__:10004
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guest2w
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sleep 1
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g2out MSG2 cat msg
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check [ "__MSG2__" = "Hello_from_guest_1" ]
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test TCP/IPv6: guest 2 > guest 1
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g2out GW2_6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
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guest1b socat -u TCP6-LISTEN:10001 OPEN:msg,create,trunc
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guest2 echo "Hello_from_guest_2" | socat -u STDIN TCP6:[__GW2_6__%__IFNAME2__]:10001
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guest1w
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sleep 1
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g1out MSG1 cat msg
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check [ "__MSG1__" = "Hello_from_guest_2" ]
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test UDP/IPv4: guest 1 > guest 2
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guest2b socat -u TCP4-LISTEN:10004 OPEN:msg,create,trunc
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guest1 echo "Hello_from_guest_1" | socat -u STDIN TCP4:__GW1__:10004
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guest2w
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sleep 1
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g2out MSG2 cat msg
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check [ "__MSG2__" = "Hello_from_guest_1" ]
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test UDP/IPv6: guest 2 > guest 1
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guest1b socat -u TCP6-LISTEN:10001 OPEN:msg,create,trunc
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guest2 echo "Hello_from_guest_2" | socat -u STDIN TCP6:[__GW2_6__%__IFNAME2__]:10001
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guest1w
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sleep 1
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g1out MSG1 cat msg
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check [ "__MSG1__" = "Hello_from_guest_2" ]
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