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passt/test/lib/setup
David Gibson 4914fce77b nstool: Rename nsholder to nstool 
In preparation for extending what it does.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
2023-04-08 01:11:41 +02:00

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#!/bin/sh
#
# SPDX-License-Identifier: GPL-2.0-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/lib/setup - Set up and tear down passt and pasta environments
#
# Copyright (c) 2021 Red Hat GmbH
# Author: Stefano Brivio <sbrivio@redhat.com>
INITRAMFS="${BASEPATH}/mbuto.img"
VCPUS="$( [ $(nproc) -ge 8 ] && echo 6 || echo $(( $(nproc) / 2 + 1 )) )"
__mem_kib="$(sed -n 's/MemTotal:[ ]*\([0-9]*\) kB/\1/p' /proc/meminfo)"
VMEM="$((${__mem_kib} / 1024 / 4))"
NSTOOL="${BASEPATH}/nstool"
# setup_build() - Set up pane layout for build tests
setup_build() {
context_setup_host host
layout_host
}
# setup_passt() - Start qemu and passt
setup_passt() {
context_setup_host host
context_setup_host passt
context_setup_host qemu
layout_passt
# Ports:
#
# guest | host
# --------------|---------------------
# 10001 as server | forwarded to guest
# 10003 | as server
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p ${LOGDIR}/passt.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
context_run passt "make clean"
context_run passt "make valgrind"
context_run_bg passt "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt ${__opts} -s ${STATESETUP}/passt.socket -f -t 10001 -u 10001 -P ${STATESETUP}/passt.pid"
# pidfile isn't created until passt is listening
wait_for [ -f "${STATESETUP}/passt.pid" ]
GUEST_CID=94557
context_run_bg qemu 'qemu-system-$(uname -m)' \
' -machine accel=kvm' \
' -m '${VMEM}' -cpu host -smp '${VCPUS} \
' -kernel ' "/boot/vmlinuz-$(uname -r)" \
' -initrd '${INITRAMFS}' -nographic -serial stdio' \
' -nodefaults' \
' -append "console=ttyS0 mitigations=off apparmor=0" ' \
' -device virtio-net-pci,netdev=s0 ' \
" -netdev stream,id=s0,server=off,addr.type=unix,addr.path=${STATESETUP}/passt.socket " \
" -pidfile ${STATESETUP}/qemu.pid" \
" -device vhost-vsock-pci,guest-cid=$GUEST_CID"
context_setup_guest guest $GUEST_CID
}
# setup_pasta() - Create a network and user namespace, connect pasta to it
setup_pasta() {
context_setup_host host
context_setup_host passt
context_setup_host unshare
layout_pasta
context_run_bg unshare "unshare -rUnpf ${NSTOOL} ${STATESETUP}/ns.hold hold"
__target_pid=$(${NSTOOL} ${STATESETUP}/ns.hold pid)
context_setup_nsenter ns -U -n -p --preserve-credentials -t ${__target_pid}
# Ports:
#
# ns | host
# ------------------|---------------------
# 10002 as server | spliced to ns
# 10003 spliced to init | as server
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p ${LOGDIR}/pasta.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
context_run_bg passt "./pasta ${__opts} -f -t 10002 -T 10003 -u 10002 -U 10003 -P ${STATESETUP}/passt.pid ${__target_pid}"
# pidfile isn't created until pasta is ready
wait_for [ -f "${STATESETUP}/passt.pid" ]
}
# setup_passt_in_ns() - Set up namespace (with pasta), run qemu and passt into it
setup_passt_in_ns() {
context_setup_host host
context_setup_host pasta
layout_passt_in_pasta
# Ports:
#
# guest | ns | host
# -------------|--------------------|-----------------
# 10001 as server | forwarded to guest | spliced to ns
# 10002 | as server | spliced to ns
# 10003 | spliced to init | as server
# 10011 as server | forwarded to guest | spliced to ns
# 10012 | as server | spliced to ns
# 10013 | spliced to init | as server
#
# 10021 as server | forwarded to guest |
# 10031 as server | forwarded to guest |
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p ${LOGDIR}/pasta_with_passt.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
context_run_bg pasta "./pasta ${__opts} -t 10001,10002,10011,10012 -T 10003,10013 -u 10001,10002,10011,10012 -U 10003,10013 -P ${STATESETUP}/pasta.pid --config-net ${NSTOOL} ${STATESETUP}/ns.hold hold"
wait_for [ -f "${STATESETUP}/pasta.pid" ]
__ns_pid=$(${NSTOOL} ${STATESETUP}/ns.hold pid)
context_setup_nsenter qemu "-t ${__ns_pid} -U -n -p --preserve-credentials"
context_setup_nsenter ns "-t ${__ns_pid} -U -n -p --preserve-credentials"
context_setup_nsenter passt "-t ${__ns_pid} -U -n -p --preserve-credentials"
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p ${LOGDIR}/passt_in_pasta.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
if [ ${VALGRIND} -eq 1 ]; then
context_run passt "make clean"
context_run passt "make valgrind"
context_run_bg passt "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt -f ${__opts} -s ${STATESETUP}/passt.socket -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P ${STATESETUP}/passt.pid"
else
context_run passt "make clean"
context_run passt "make"
context_run_bg passt "./passt -f ${__opts} -s ${STATESETUP}/passt.socket -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P ${STATESETUP}/passt.pid"
fi
wait_for [ -f "${STATESETUP}/passt.pid" ]
GUEST_CID=94557
context_run_bg qemu 'qemu-system-$(uname -m)' \
' -machine accel=kvm' \
' -M accel=kvm:tcg' \
' -m '${VMEM}' -cpu host -smp '${VCPUS} \
' -kernel ' "/boot/vmlinuz-$(uname -r)" \
' -initrd '${INITRAMFS}' -nographic -serial stdio' \
' -nodefaults' \
' -append "console=ttyS0 mitigations=off apparmor=0" ' \
' -device virtio-net-pci,netdev=s0 ' \
" -netdev stream,id=s0,server=off,addr.type=unix,addr.path=${STATESETUP}/passt.socket " \
" -pidfile ${STATESETUP}/qemu.pid" \
" -device vhost-vsock-pci,guest-cid=$GUEST_CID"
context_setup_guest guest $GUEST_CID
}
# setup_two_guests() - Set up two namespace, run qemu and passt in both of them
setup_two_guests() {
context_setup_host host
context_setup_host pasta_1
context_setup_host pasta_2
layout_two_guests
# Ports:
#
# guest #1 | guest #2 | ns #1 | ns #2 | host
# --------- |-----------|-----------|------------|------------
# 10001 as server | | to guest | to init | to ns #1
# 10002 | | as server | | to ns #1
# 10003 | | to init | to init | as server
# 10004 | as server | to init | to guest | to ns #2
# 10005 | | | as server | to ns #2
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p ${LOGDIR}/pasta_1.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
context_run_bg pasta_1 "./pasta ${__opts} --trace -l /tmp/pasta1.log -P ${STATESETUP}/pasta_1.pid -t 10001,10002 -T 10003,10004 -u 10001,10002 -U 10003,10004 --config-net ${NSTOOL} ${STATESETUP}/ns1.hold hold"
__ns1_pid=$(${NSTOOL} ${STATESETUP}/ns1.hold pid)
context_setup_nsenter passt_1 -U -n -p --preserve-credentials -t ${__ns1_pid}
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p ${LOGDIR}/pasta_2.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
context_run_bg pasta_2 "./pasta ${__opts} --trace -l /tmp/pasta2.log -P ${STATESETUP}/pasta_2.pid -t 10004,10005 -T 10003,10001 -u 10004,10005 -U 10003,10001 --config-net ${NSTOOL} ${STATESETUP}/ns2.hold hold"
__ns2_pid=$(${NSTOOL} ${STATESETUP}/ns2.hold pid)
context_setup_nsenter passt_2 -U -n -p --preserve-credentials -t ${__ns2_pid}
context_setup_nsenter qemu_1 -U -n -p --preserve-credentials -t ${__ns1_pid}
context_setup_nsenter qemu_2 -U -n -p --preserve-credentials -t ${__ns2_pid}
__ifname="$(context_run qemu_1 "ip -j link show | jq -rM '.[] | select(.link_type == \"ether\").ifname'")"
sleep 1
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p ${LOGDIR}/passt_1.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
context_run_bg passt_1 "./passt -s ${STATESETUP}/passt_1.socket -P ${STATESETUP}/passt_1.pid -f ${__opts} -t 10001 -u 10001"
wait_for [ -f "${STATESETUP}/passt_1.pid" ]
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p ${LOGDIR}/passt_2.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
[ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"
context_run_bg passt_2 "./passt -s ${STATESETUP}/passt_2.socket -P ${STATESETUP}/passt_2.pid -f ${__opts} -t 10004 -u 10004"
wait_for [ -f "${STATESETUP}/passt_2.pid" ]
GUEST_1_CID=94557
context_run_bg qemu_1 'qemu-system-$(uname -m)' \
' -M accel=kvm:tcg' \
' -m '${VMEM}' -cpu host -smp '${VCPUS} \
' -kernel ' "/boot/vmlinuz-$(uname -r)" \
' -initrd '${INITRAMFS}' -nographic -serial stdio' \
' -nodefaults' \
' -append "console=ttyS0 mitigations=off apparmor=0" ' \
' -device virtio-net-pci,netdev=s0 ' \
" -netdev stream,id=s0,server=off,addr.type=unix,addr.path=${STATESETUP}/passt_1.socket " \
" -pidfile ${STATESETUP}/qemu_1.pid" \
" -device vhost-vsock-pci,guest-cid=$GUEST_1_CID"
GUEST_2_CID=94558
context_run_bg qemu_2 'qemu-system-$(uname -m)' \
' -M accel=kvm:tcg' \
' -m '${VMEM}' -cpu host -smp '${VCPUS} \
' -kernel ' "/boot/vmlinuz-$(uname -r)" \
' -initrd '${INITRAMFS}' -nographic -serial stdio' \
' -nodefaults' \
' -append "console=ttyS0 mitigations=off apparmor=0" ' \
' -device virtio-net-pci,netdev=s0 ' \
" -netdev stream,id=s0,server=off,addr.type=unix,addr.path=${STATESETUP}/passt_2.socket " \
" -pidfile ${STATESETUP}/qemu_2.pid" \
" -device vhost-vsock-pci,guest-cid=$GUEST_2_CID"
context_setup_guest guest_1 ${GUEST_1_CID}
context_setup_guest guest_2 ${GUEST_2_CID}
}
# teardown_context_watch() - Remove contexts and stop panes watching them
# $1: Pane number watching
# $@: Context names
teardown_context_watch() {
__pane="$1"
shift
for __c; do
context_teardown "${__c}"
done
tmux send-keys -t ${__pane} "C-c"
}
# teardown_build() - Nothing to do, yet
teardown_build() {
teardown_context_watch ${PANE_HOST} host
}
# teardown_passt() - Kill qemu, remove passt PID file
teardown_passt() {
kill $(cat "${STATESETUP}/qemu.pid")
rm "${STATESETUP}/passt.pid"
teardown_context_watch ${PANE_HOST} host
teardown_context_watch ${PANE_PASST} passt
teardown_context_watch ${PANE_GUEST} qemu guest
}
# teardown_pasta() - Exit namespace, kill pasta process
teardown_pasta() {
${NSTOOL} "${STATESETUP}/ns.hold" stop
context_wait unshare
teardown_context_watch ${PANE_HOST} host
teardown_context_watch ${PANE_PASST} passt
teardown_context_watch ${PANE_NS} unshare ns
}
# teardown_passt_in_ns() - Exit namespace, kill qemu and pasta, remove pid file
teardown_passt_in_ns() {
context_run ns kill $(cat "${STATESETUP}/qemu.pid")
context_wait qemu
${NSTOOL} "${STATESETUP}/ns.hold" stop
context_wait pasta
rm "${STATESETUP}/passt.pid" "${STATESETUP}/pasta.pid"
teardown_context_watch ${PANE_HOST} host
teardown_context_watch ${PANE_PASST} pasta passt
teardown_context_watch ${PANE_NS} ns
teardown_context_watch ${PANE_GUEST} qemu guest
}
# teardown_two_guests() - Exit namespaces, kill qemu processes, passt and pasta
teardown_two_guests() {
__ns1_pid=$(${NSTOOL} "${STATESETUP}/ns1.hold" pid)
__ns2_pid=$(${NSTOOL} "${STATESETUP}/ns2.hold" pid)
nsenter -U -p --preserve-credentials -t ${__ns1_pid} kill $(cat "${STATESETUP}/qemu_1.pid")
nsenter -U -p --preserve-credentials -t ${__ns2_pid} kill $(cat "${STATESETUP}/qemu_2.pid")
context_wait qemu_1
context_wait qemu_2
nsenter -U -p --preserve-credentials -t ${__ns1_pid} kill $(cat "${STATESETUP}/passt_1.pid")
nsenter -U -p --preserve-credentials -t ${__ns2_pid} kill $(cat "${STATESETUP}/passt_2.pid")
context_wait passt_1
context_wait passt_2
${NSTOOL} "${STATESETUP}/ns1.hold" stop
${NSTOOL} "${STATESETUP}/ns2.hold" stop
context_wait pasta_1
context_wait pasta_2
rm -f "${STATESETUP}/passt__[12].pid" "${STATESETUP}/pasta_[12].pid"
teardown_context_watch ${PANE_HOST} host
teardown_context_watch ${PANE_GUEST_1} qemu_1 guest_1
teardown_context_watch ${PANE_GUEST_2} qemu_2 guest_2
teardown_context_watch ${PANE_PASST_1} pasta_1 passt_1
teardown_context_watch ${PANE_PASST_2} pasta_2 passt_2
}
# teardown_demo_passt() - Exit namespace, kill qemu, passt and pasta
teardown_demo_passt() {
tmux send-keys -t ${PANE_GUEST} "C-c"
pane_wait GUEST
tmux send-keys -t ${PANE_GUEST} "C-d"
tmux send-keys -t ${PANE_PASST} "C-c"
pane_wait GUEST
pane_wait HOST
pane_wait PASST
tmux kill-pane -a -t 0
tmux send-keys -t 0 "C-c"
}
# teardown_demo_pasta() - Exit perf and namespace from remaining pane
teardown_demo_pasta() {
tmux send-keys -t ${PANE_NS} "q"
pane_wait NS
tmux send-keys -t ${PANE_NS} "C-d"
pane_wait NS
tmux kill-pane -a -t 0
tmux send-keys -t 0 "C-c"
}
# teardown_demo_podman() - Exit namespaces
teardown_demo_podman() {
tmux send-keys -t ${PANE_NS1} "C-d"
tmux send-keys -t ${PANE_NS2} "C-d"
pane_wait NS1
pane_wait NS2
tmux kill-pane -a -t 0
tmux send-keys -t 0 "C-c"
}
# setup() - Run setup_*() functions
# $*: Suffix list of setup_*() functions to be called
setup() {
for arg do
STATESETUP="${STATEBASE}/${arg}"
mkdir -p "${STATESETUP}"
eval setup_${arg}
done
}
# teardown() - Run teardown_*() functions
# $*: Suffix list of teardown_*() functions to be called
teardown() {
for arg do
eval teardown_${arg}
done
}
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