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PCAP=1 ./run migrate/bidirectional gives an overview of how the whole thing is working. Add 12 tests in total, checking basic functionality with and without flows in both directions, with and without sockets in half-closed states (both inbound and outbound), migration behaviour under traffic flood, under traffic flood with > 253 flows, and strict checking of sequences under flood with ramp patterns in both directions. These tests need preparation and teardown for each case, as we need to restore the source guest in its own context and pane before we can test again. Eventually, we could consider alternating source and target so that we don't need to restart from scratch every time, but that's beyond the scope of this initial test implementation. Trick: './run migrate/*' runs all the tests with preparation and teardown steps. Co-authored-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
64 lines
2.3 KiB
Text
64 lines
2.3 KiB
Text
# 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/migrate/bidirectional_fin - Both directions, half-closed sockets
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#
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# Copyright (c) 2025 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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htools ip jq
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set MAP_HOST4 192.0.2.1
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set MAP_HOST6 2001:db8:9a55::1
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set MAP_NS4 192.0.2.2
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set MAP_NS6 2001:db8:9a55::2
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test Interface name
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g1out IFNAME1 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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test DHCP: address
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guest1 ip link set dev __IFNAME1__ up
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guest1 /sbin/dhclient -4 __IFNAME1__
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g1out ADDR1 ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__IFNAME1__").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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test TCP/IPv4: guest1/guest2 <- (half closed) -> host
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g1out GW1 ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
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hostb echo FIN | socat TCP4-LISTEN:10006,shut-down STDIO,ignoreeof > __STATESETUP__/msg
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guest1b echo FIN | socat TCP4-LISTEN:10001,shut-down STDIO,ignoreeof > msg
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sleep 1
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guest1b socat -u UNIX-RECV:proxy.sock,null-eof TCP4:__MAP_HOST4__:10006
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hostb socat -u UNIX-RECV:__STATESETUP__/proxy.sock,null-eof TCP4:__ADDR1__:10001
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sleep 1
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guest1 printf "Hello from guest 1" | socat -u STDIN UNIX:proxy.sock
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host printf "Dear guest 1," | socat -u STDIN UNIX:__STATESETUP__/proxy.sock
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sleep 1
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mon echo "migrate tcp:0:20005" | socat -u STDIN UNIX:__STATESETUP__/qemu_1_mon.sock
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sleep 2
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guest2 printf " and from guest 2" | socat -u STDIN UNIX:proxy.sock,shut-null
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host printf " you are now guest 2" | socat -u STDIN UNIX:__STATESETUP__/proxy.sock,shut-null
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hostw
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# FIXME: guest2w doesn't work here because shell jobs are (also) from guest #1,
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# use sleep 1 for the moment
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sleep 1
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hout MSG cat __STATESETUP__/msg
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check [ "__MSG__" = "Hello from guest 1 and from guest 2" ]
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g2out MSG cat msg
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check [ "__MSG__" = "Dear guest 1, you are now guest 2" ]
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