#!/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 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))" QEMU_ARCH="$(uname -m)" [ "${QEMU_ARCH}" = "i686" ] && QEMU_ARCH=i386 # 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-'"${QEMU_ARCH}" \ ' -machine accel=kvm' \ ' -m '${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} hold ${STATESETUP}/ns.hold" context_setup_nstool ns ${STATESETUP}/ns.hold # 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 $(${NSTOOL} info -pw ${STATESETUP}/ns.hold)" # pidfile isn't created until pasta is ready wait_for [ -f "${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" __map_host4=192.0.2.1 __map_host6=2001:db8:9a55::1 __map_ns4=192.0.2.2 __map_ns6=2001:db8:9a55::2 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 --map-host-loopback ${__map_host4} --map-host-loopback ${__map_host6} --config-net ${NSTOOL} hold ${STATESETUP}/ns.hold" wait_for [ -f "${STATESETUP}/pasta.pid" ] context_setup_nstool qemu ${STATESETUP}/ns.hold context_setup_nstool ns ${STATESETUP}/ns.hold context_setup_nstool passt ${STATESETUP}/ns.hold __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 --map-host-loopback ${__map_ns4} --map-host-loopback ${__map_ns6}" 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 --map-host-loopback ${__map_ns4} --map-host-loopback ${__map_ns6}" fi wait_for [ -f "${STATESETUP}/passt.pid" ] GUEST_CID=94557 context_run_bg qemu 'qemu-system-'"${QEMU_ARCH}" \ ' -machine accel=kvm' \ ' -M accel=kvm:tcg' \ ' -m '${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} hold ${STATESETUP}/ns1.hold" context_setup_nstool passt_1 ${STATESETUP}/ns1.hold __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} hold ${STATESETUP}/ns2.hold" context_setup_nstool passt_2 ${STATESETUP}/ns2.hold context_setup_nstool qemu_1 ${STATESETUP}/ns1.hold context_setup_nstool qemu_2 ${STATESETUP}/ns2.hold __ifname="$(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-'"${QEMU_ARCH}" \ ' -M accel=kvm:tcg' \ ' -m '${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-'"${QEMU_ARCH}" \ ' -M accel=kvm:tcg' \ ' -m '${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() { ${NSTOOL} stop "${STATESETUP}/ns.hold" 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 ${NSTOOL} stop "${STATESETUP}/ns.hold" 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() { ${NSTOOL} exec ${STATESETUP}/ns1.hold -- kill $(cat "${STATESETUP}/qemu_1.pid") ${NSTOOL} exec ${STATESETUP}/ns2.hold -- kill $(cat "${STATESETUP}/qemu_2.pid") context_wait qemu_1 context_wait qemu_2 ${NSTOOL} exec ${STATESETUP}/ns1.hold -- kill $(cat "${STATESETUP}/passt_1.pid") ${NSTOOL} exec ${STATESETUP}/ns2.hold -- kill $(cat "${STATESETUP}/passt_2.pid") context_wait passt_1 context_wait passt_2 ${NSTOOL} stop "${STATESETUP}/ns1.hold" ${NSTOOL} stop "${STATESETUP}/ns2.hold" 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 }