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passt/test/two_guests/basic
David Gibson 3eaf9f5320 tests: Correct determination of host interface name in tests
By default, passt itself attaches to the first host interface with a
default route.  However, when determining the host interface name the tests
implicitly select the *last* host interface: they use a jq expression which
will list all interfaces with default routes, but the way output detection
works in the scripts, it will only pick up the last line.

If there are multiple interfaces with default routes on the host, and they
each have a different address, this can cause spurious test failures.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2022-07-30 21:57:14 +02:00

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# SPDX-License-Identifier: AGPL-3.0-or-later
#
# PASST - Plug A Simple Socket Transport
# for qemu/UNIX domain socket mode
#
# PASTA - Pack A Subtle Tap Abstraction
# for network namespace/tap device mode
#
# test/two_guests/basic - Check basic functionality with two guests
#
# Copyright (c) 2021 Red Hat GmbH
# Author: Stefano Brivio <sbrivio@redhat.com>
g1tools ip jq dhclient socat cat
g2tools ip jq dhclient socat cat
htools ip jq md5sum cut
test Interface names
g1out IFNAME1 ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
g2out IFNAME2 ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
hout HOST_IFNAME ip -j -4 route show|jq -rM '[.[] | select(.dst == "default").dev] | .[0]'
check [ -n "__IFNAME1__" ]
check [ -n "__IFNAME2__" ]
test DHCP: addresses
guest1 ip link set dev __IFNAME1__ up
guest1 /sbin/dhclient -4 __IFNAME1__
guest2 ip link set dev __IFNAME2__ up
guest2 /sbin/dhclient -4 __IFNAME2__
g1out ADDR1 ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__IFNAME1__").addr_info[0].local'
g2out ADDR2 ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__IFNAME2__").addr_info[0].local'
hout HOST_ADDR ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__HOST_IFNAME__").addr_info[0].local'
check [ "__ADDR1__" = "__HOST_ADDR__" ]
check [ "__ADDR2__" = "__HOST_ADDR__" ]
test DHCPv6: addresses
# Link is up now, wait for DAD to complete
sleep 2
guest1 /sbin/dhclient -6 __IFNAME1__
guest2 /sbin/dhclient -6 __IFNAME2__
g1out ADDR1_6 ip -j -6 addr show|jq -rM '.[] | select(.ifname == "__IFNAME1__").addr_info[] | select(.prefixlen == 128).local'
g2out ADDR2_6 ip -j -6 addr show|jq -rM '.[] | select(.ifname == "__IFNAME2__").addr_info[] | select(.prefixlen == 128).local'
hout HOST_ADDR6 ip -j -6 addr show|jq -rM '.[] | select(.ifname == "__HOST_IFNAME__").addr_info[] | select(.scope == "global").local'
check [ "__ADDR1_6__" = "__HOST_ADDR6__" ]
check [ "__ADDR2_6__" = "__HOST_ADDR6__" ]
test TCP/IPv4: guest 1 > guest 2
g1out GW1 ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
guest2b socat -u TCP4-LISTEN:10004 OPEN:msg,create,trunc
guest1 echo "Hello_from_guest_1" | socat -u STDIN TCP4:__GW1__:10004
guest2w
sleep 1
g2out MSG2 cat msg
check [ "__MSG2__" = "Hello_from_guest_1" ]
test TCP/IPv6: guest 2 > guest 1
g2out GW2_6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
guest1b socat -u TCP6-LISTEN:10001 OPEN:msg,create,trunc
guest2 echo "Hello_from_guest_2" | socat -u STDIN TCP6:[__GW2_6__%__IFNAME2__]:10001
guest1w
sleep 1
g1out MSG1 cat msg
check [ "__MSG1__" = "Hello_from_guest_2" ]
test UDP/IPv4: guest 1 > guest 2
guest2b socat -u TCP4-LISTEN:10004 OPEN:msg,create,trunc
guest1 echo "Hello_from_guest_1" | socat -u STDIN TCP4:__GW1__:10004
guest2w
sleep 1
g2out MSG2 cat msg
check [ "__MSG2__" = "Hello_from_guest_1" ]
test UDP/IPv6: guest 2 > guest 1
guest1b socat -u TCP6-LISTEN:10001 OPEN:msg,create,trunc
guest2 echo "Hello_from_guest_2" | socat -u STDIN TCP6:[__GW2_6__%__IFNAME2__]:10001
guest1w
sleep 1
g1out MSG1 cat msg
check [ "__MSG1__" = "Hello_from_guest_2" ]