56e755ba11
Extends the context system in the test scripts to allow executing commands within a guest. Do this without requiring an existing network in the guest by using socat to run ssh via a vsock connection. We do need some additional "sleep"s in the tests, because the new faster dispatch means that sometimes we attempt to connect before socat has managed to listen. For now, only use this for the plain "passt" tests. The "passt_in_ns" and other tests have additional complications we still need to deal with. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
427 lines
13 KiB
Bash
Executable file
427 lines
13 KiB
Bash
Executable file
#!/bin/sh
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#
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# 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/lib/setup - Set up and tear down passt and pasta environments
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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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INITRAMFS="${BASEPATH}/mbuto.img"
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VCPUS="$( [ $(nproc) -ge 8 ] && echo 6 || echo $(( $(nproc) / 2 + 1 )) )"
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__mem_kib="$(sed -n 's/MemTotal:[ ]*\([0-9]*\) kB/\1/p' /proc/meminfo)"
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VMEM="$((${__mem_kib} / 1024 / 4))"
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NSHOLDER="${BASEPATH}/nsholder"
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# setup_build() - Set up pane layout for build tests
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setup_build() {
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context_setup_host host
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layout_host
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}
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# setup_distro() - Set up pane layout for distro tests
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setup_distro() {
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layout_host
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}
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# setup_passt() - Start qemu and passt
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setup_passt() {
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context_setup_host host
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context_setup_host passt
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context_setup_host qemu
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layout_passt
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# Ports:
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#
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# guest | host
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# --------------|---------------------
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# 10001 as server | forwarded to guest
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# 10003 | as server
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__opts=
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[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/passt.pcap"
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[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
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[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
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context_run passt "make clean"
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context_run passt "make valgrind"
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context_run_bg passt "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt ${__opts} -f -t 10001 -u 10001 -P passt.pid"
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sleep 5
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GUEST_CID=94557
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context_run_bg qemu './qrap 5 qemu-system-$(uname -m)' \
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' -machine accel=kvm' \
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' -m '${VMEM}' -cpu host -smp '${VCPUS} \
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' -kernel ' "/boot/vmlinuz-$(uname -r)" \
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' -initrd '${INITRAMFS}' -nographic -serial stdio' \
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' -nodefaults' \
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' -append "console=ttyS0 mitigations=off apparmor=0 ' \
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'virtio-net.napi_tx=1"' \
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" -device virtio-net-pci,netdev=hostnet0,x-txburst=16384" \
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" -netdev socket,fd=5,id=hostnet0" \
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" -pidfile passt_qemu.pid" \
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" -device vhost-vsock-pci,guest-cid=$GUEST_CID"
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context_setup_guest guest $GUEST_CID
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}
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# setup_pasta() - Create a network and user namespace, connect pasta to it
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setup_pasta() {
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context_setup_host host
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context_setup_host passt
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context_setup_host unshare
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layout_pasta
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context_run_bg unshare "unshare -rUnpf ${NSHOLDER} ns.hold hold"
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__target_pid=$(${NSHOLDER} ns.hold pid)
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context_setup_nsenter ns -U -n -p --preserve-credentials -t ${__target_pid}
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# Ports:
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#
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# ns | host
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# ------------------|---------------------
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# 10002 as server | spliced to ns
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# 10003 spliced to init | as server
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__opts=
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[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/pasta.pcap"
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[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
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[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
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context_run_bg passt "./pasta ${__opts} -f -t 10002 -T 10003 -u 10002 -U 10003 -P passt.pid ${__target_pid}"
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sleep 1
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}
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# setup_passt_in_ns() - Set up namespace (with pasta), run qemu and passt into it
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setup_passt_in_ns() {
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context_setup_host host
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layout_passt_in_pasta
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# Ports:
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#
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# guest | ns | host
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# -------------|--------------------|-----------------
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# 10001 as server | forwarded to guest | spliced to ns
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# 10002 | as server | spliced to ns
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# 10003 | spliced to init | as server
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# 10011 as server | forwarded to guest | spliced to ns
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# 10012 | as server | spliced to ns
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# 10013 | spliced to init | as server
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#
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# 10021 as server | forwarded to guest |
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# 10031 as server | forwarded to guest |
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__opts=
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[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/pasta_with_passt.pcap"
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[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
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[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
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__pid_file="$(mktemp)"
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pane_run PASST "./pasta ${__opts} -t 10001,10002,10011,10012 -T 10003,10013 -u 10001,10002,10011,10012 -U 10003,10013 -P ${__pid_file}"
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sleep 1
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pane_run PASST ''
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pane_status PASST
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__pasta_pid="$(cat "${__pid_file}")"
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__ns_pid="$(cat /proc/${__pasta_pid}/task/${__pasta_pid}/children | cut -f1 -d' ')"
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rm "${__pid_file}"
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pane_run GUEST "nsenter -t ${__ns_pid} -U -n --preserve-credentials"
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pane_run NS "nsenter -t ${__ns_pid} -U -n -p --preserve-credentials"
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pane_status GUEST
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pane_status NS
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pane_run NS "ip -j link show | jq -rM '.[] | select(.link_type == \"ether\").ifname'"
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pane_wait NS
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__ifname="$(pane_parse NS)"
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pane_run NS "/sbin/dhclient -4 --no-pid ${__ifname}"
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pane_status NS
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sleep 2
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pane_run NS "/sbin/dhclient -6 --no-pid ${__ifname}"
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pane_status NS
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__opts=
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[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/passt_in_pasta.pcap"
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[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
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[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
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if [ ${VALGRIND} -eq 1 ]; then
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pane_run PASST "make clean"
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pane_status PASST
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pane_run PASST "make valgrind"
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pane_status PASST
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pane_run PASST "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid"
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else
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pane_run PASST "make clean"
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pane_status PASST
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pane_run PASST "make"
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pane_status PASST
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pane_run PASST "./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid"
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fi
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sleep 5
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pane_run GUEST './qrap 5 qemu-system-$(uname -m)' \
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' -machine accel=kvm' \
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' -M accel=kvm:tcg' \
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' -m '${VMEM}' -cpu host -smp '${VCPUS} \
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' -kernel ' "/boot/vmlinuz-$(uname -r)" \
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' -initrd '${INITRAMFS}' -nographic -serial stdio' \
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' -nodefaults' \
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' -append "console=ttyS0 mitigations=off apparmor=0 ' \
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'virtio-net.napi_tx=1"' \
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" -device virtio-net-pci,netdev=hostnet0,x-txburst=524288" \
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" -netdev socket,fd=5,id=hostnet0" \
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' -pidfile passt_in_ns_qemu.pid'
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pane_status GUEST
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}
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# setup_two_guests() - Set up two namespace, run qemu and passt in both of them
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setup_two_guests() {
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context_setup_host host
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layout_two_guests
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# Ports:
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#
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# guest #1 | guest #2 | ns #1 | ns #2 | host
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# --------- |-----------|-----------|------------|------------
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# 10001 as server | | to guest | to init | to ns #1
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# 10002 | | as server | | to ns #1
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# 10003 | | to init | to init | as server
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# 10004 | as server | to init | to guest | to ns #2
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# 10005 | | | as server | to ns #2
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__pid1_file="$(mktemp)"
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__pid2_file="$(mktemp)"
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__opts=
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[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/pasta_1.pcap"
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[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
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[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
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pane_run PASST_1 "./pasta ${__opts} -P ${__pid1_file} -t 10001,10002 -T 10003,10004 -u 10001,10002 -U 10003,10004"
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__opts=
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[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/pasta_2.pcap"
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[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
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[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
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pane_run PASST_2 "./pasta ${__opts} -P ${__pid2_file} -t 10004,10005 -T 10003,10001 -u 10004,10005 -U 10003,10001"
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sleep 1
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pane_run PASST_1 ''
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pane_run PASST_2 ''
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pane_status PASST_1
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pane_status PASST_2
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__pasta1_pid="$(cat "${__pid1_file}")"
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__ns1_pid="$(cat /proc/${__pasta1_pid}/task/${__pasta1_pid}/children | cut -f1 -d' ')"
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rm "${__pid1_file}"
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__pasta2_pid="$(cat "${__pid2_file}")"
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__ns2_pid="$(cat /proc/${__pasta2_pid}/task/${__pasta2_pid}/children | cut -f1 -d' ')"
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rm "${__pid2_file}"
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pane_run GUEST_1 "nsenter -t ${__ns1_pid} -U -n --preserve-credentials"
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pane_run GUEST_2 "nsenter -t ${__ns2_pid} -U -n --preserve-credentials"
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pane_run PASST_1 "ip -j link show | jq -rM '.[] | select(.link_type == \"ether\").ifname'"
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pane_wait PASST_1
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__ifname="$(pane_parse PASST_1)"
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pane_run GUEST_1 "/sbin/dhclient -4 --no-pid ${__ifname}"
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pane_run GUEST_2 "/sbin/dhclient -4 --no-pid ${__ifname}"
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pane_status GUEST_1
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pane_status GUEST_2
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sleep 2
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pane_run GUEST_1 "/sbin/dhclient -6 --no-pid ${__ifname}"
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pane_run GUEST_2 "/sbin/dhclient -6 --no-pid ${__ifname}"
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pane_status GUEST_1
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pane_status GUEST_2
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__opts=
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[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/passt_1.pcap"
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[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
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[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
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pane_run PASST_1 "./passt -f ${__opts} -t 10001 -u 10001"
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sleep 1
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__opts=
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[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/passt_2.pcap"
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[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
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[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
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pane_run PASST_2 "./passt -f ${__opts} -t 10004 -u 10004"
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pane_run GUEST_1 './qrap 5 qemu-system-$(uname -m)' \
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' -M accel=kvm:tcg' \
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' -m '${VMEM}' -cpu host -smp '${VCPUS} \
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' -kernel ' "/boot/vmlinuz-$(uname -r)" \
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' -initrd '${INITRAMFS}' -nographic -serial stdio' \
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' -nodefaults' \
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' -append "console=ttyS0 mitigations=off apparmor=0 ' \
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'virtio-net.napi_tx=1"' \
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" -device virtio-net-pci,netdev=hostnet0,x-txburst=16384" \
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" -netdev socket,fd=5,id=hostnet0" \
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' -pidfile two_guests_qemu_1.pid'
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pane_run GUEST_2 './qrap 5 qemu-system-$(uname -m)' \
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' -M accel=kvm:tcg' \
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' -m '${VMEM}' -cpu host -smp '${VCPUS} \
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' -kernel ' "/boot/vmlinuz-$(uname -r)" \
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' -initrd '${INITRAMFS}' -nographic -serial stdio' \
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' -nodefaults' \
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' -append "console=ttyS0 mitigations=off apparmor=0 ' \
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'virtio-net.napi_tx=1"' \
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" -device virtio-net-pci,netdev=hostnet0,x-txburst=16384" \
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" -netdev socket,fd=5,id=hostnet0" \
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' -pidfile two_guests_qemu_2.pid'
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pane_status GUEST_1
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pane_status GUEST_2
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}
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# teardown_context_watch() - Remove contexts and stop panes watching them
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# $1: Pane number watching
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# $@: Context names
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teardown_context_watch() {
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__pane="$1"
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shift
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for __c; do
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context_teardown "${__c}"
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done
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tmux send-keys -t ${__pane} "C-c"
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}
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# teardown_build() - Nothing to do, yet
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teardown_build() {
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teardown_context_watch ${PANE_HOST} host
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}
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# teardown_distro() - Nothing to do, yet
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teardown_distro() {
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:
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}
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# teardown_passt() - Kill qemu, remove passt PID file
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teardown_passt() {
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kill $(cat passt_qemu.pid)
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rm passt.pid
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teardown_context_watch ${PANE_HOST} host
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teardown_context_watch ${PANE_PASST} passt
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teardown_context_watch ${PANE_GUEST} qemu guest
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}
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# teardown_passt() - Exit namespace, kill pasta process
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teardown_pasta() {
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${NSHOLDER} ns.hold stop
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context_wait unshare
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teardown_context_watch ${PANE_HOST} host
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teardown_context_watch ${PANE_PASST} passt
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teardown_context_watch ${PANE_NS} unshare ns
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}
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# teardown_passt_in_ns() - Exit namespace, kill qemu and pasta, remove pid file
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teardown_passt_in_ns() {
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kill $(cat passt_in_ns_qemu.pid)
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pane_wait GUEST
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tmux send-keys -t ${PANE_GUEST} "C-d"
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tmux send-keys -t ${PANE_PASST} "C-d"
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pane_wait GUEST
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pane_wait NS
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pane_wait PASST
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rm passt.pid
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teardown_context_watch ${PANE_HOST} host
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}
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# teardown_two_guests() - Exit namespaces, kill qemu processes, passt and pasta
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teardown_two_guests() {
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kill $(cat two_guests_qemu_1.pid)
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pane_wait GUEST_1
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tmux send-keys -t ${PANE_GUEST_1} "C-d"
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kill $(cat two_guests_qemu_2.pid)
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pane_wait GUEST_2
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tmux send-keys -t ${PANE_GUEST_2} "C-d"
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tmux send-keys -t ${PANE_PASST_1} "C-c"
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pane_wait PASST_1
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tmux send-keys -t ${PANE_PASST_1} "C-d"
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tmux send-keys -t ${PANE_PASST_2} "C-c"
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pane_wait PASST_2
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tmux send-keys -t ${PANE_PASST_2} "C-d"
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pane_wait GUEST_1
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pane_wait GUEST_2
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pane_wait PASST_1
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pane_wait PASST_2
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teardown_context_watch ${PANE_HOST} host
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}
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# teardown_demo_passt() - Exit namespace, kill qemu, passt and pasta
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teardown_demo_passt() {
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tmux send-keys -t ${PANE_GUEST} "C-c"
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pane_wait GUEST
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tmux send-keys -t ${PANE_GUEST} "C-d"
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tmux send-keys -t ${PANE_PASST} "C-c"
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pane_wait GUEST
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pane_wait HOST
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pane_wait PASST
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tmux kill-pane -a -t 0
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tmux send-keys -t 0 "C-c"
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}
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# teardown_demo_pasta() - Exit perf and namespace from remaining pane
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teardown_demo_pasta() {
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tmux send-keys -t ${PANE_NS} "q"
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pane_wait NS
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tmux send-keys -t ${PANE_NS} "C-d"
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pane_wait NS
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tmux kill-pane -a -t 0
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tmux send-keys -t 0 "C-c"
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}
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# teardown_demo_podman() - Exit namespaces
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teardown_demo_podman() {
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tmux send-keys -t ${PANE_NS1} "C-d"
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tmux send-keys -t ${PANE_NS2} "C-d"
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pane_wait NS1
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pane_wait NS2
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tmux kill-pane -a -t 0
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tmux send-keys -t 0 "C-c"
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}
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# setup() - Run setup_*() functions
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# $*: Suffix list of setup_*() functions to be called
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setup() {
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for arg do
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eval setup_${arg}
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done
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}
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# teardown() - Run teardown_*() functions
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# $*: Suffix list of teardown_*() functions to be called
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teardown() {
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for arg do
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eval teardown_${arg}
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done
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}
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