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Now that the back end allows passt/pasta to use different external interfaces for IPv4 and IPv6, use that to do the right thing in the case that the host has IPv4 and IPv6 connectivity via different interfaces. If the user hasn't explicitly chosen an interface, separately search for a suitable external interface for each protocol. As a bonus, this substantially simplifies the external interface probe. It also eliminates a subtle confusing case where in some circumstances we would pick the first interface in interface index order, and sometimes in order of routes returned from netlink. On some network configurations that could cause tests to fail, because the logic in the tests was subtly different (it always used route order). Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
81 lines
3.1 KiB
Plaintext
81 lines
3.1 KiB
Plaintext
# SPDX-License-Identifier: AGPL-3.0-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 md5sum cut
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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'
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g2out ADDR2_6 ip -j -6 addr show|jq -rM '.[] | select(.ifname == "__IFNAME2__").addr_info[] | select(.prefixlen == 128).local'
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hout HOST_ADDR6 ip -j -6 addr show|jq -rM '.[] | select(.ifname == "__HOST_IFNAME6__").addr_info[] | select(.scope == "global").local'
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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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