mirror of
https://passt.top/passt
synced 2024-11-05 20:31:11 +00:00
bec6d3e084
...otherwise, we'll leave processes (dhclient) around. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
376 lines
11 KiB
Bash
Executable File
376 lines
11 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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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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# setup_build() - Set up pane layout for build tests
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setup_build() {
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MODE=build
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layout_host
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}
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# setup_passt() - Build guest initrd with mbuto, start qemu and passt
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setup_passt() {
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MODE=passt
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layout_passt
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__mbuto_dir="$(mktemp -d)"
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pane_run GUEST "git -C ${__mbuto_dir} clone https://mbuto.lameexcu.se/mbuto/"
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pane_wait GUEST
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pane_run GUEST "${__mbuto_dir}/mbuto/mbuto -p passt -c lz4 -f mbuto.img"
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pane_wait GUEST
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rm -rf "${__mbuto_dir}"
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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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pane_run PASST "./passt ${__opts} -f -t 10001 -u 10001"
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sleep 1
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pane_run GUEST './qrap 5 kvm -m '${VMEM}' -cpu host -smp '${VCPUS} \
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' -kernel ' "/boot/vmlinuz-$(uname -r)" \
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' -initrd mbuto.img -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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pane_wait GUEST
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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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MODE=pasta
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layout_pasta
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pane_run NS 'echo $$'
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pane_wait NS
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__tty_pid="$(pane_parse NS)"
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pane_run NS "unshare -rUnpf /bin/sh"
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pane_wait NS
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pane_run PASST "pstree -p ${__tty_pid} | sed -n 's/.*(\([0-9].*\))$/\1/p'"
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pane_wait PASST
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__target_pid="$(pane_parse PASST)"
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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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pane_run PASST "./pasta ${__opts} -f -t 10002 -T 10003 -u 10002 -U 10003 ${__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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MODE=passt_in_ns
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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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__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 ${__pid_file}"
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sleep 1
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pane_run PASST ''
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pane_wait PASST
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__pasta_pid="$(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 ${__ns_pid} -U -n --preserve-credentials"
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pane_wait GUEST
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pane_wait NS
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pane_run NS "ip -j li sh | jq -rM '.[] | select(.link_type == \"ether\").ifname'"
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pane_wait NS
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__ifname="$(pane_parse NS)"
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pane_run NS "/sbin/udhcpc -i ${__ifname}"
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pane_wait NS
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sleep 2
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pane_run NS "/sbin/dhclient -6 ${__ifname}"
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pane_wait 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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#pane_run PASST "valgrind --max-stackframe=3000000 ./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031"
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pane_run PASST "./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031"
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sleep 1
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pane_run GUEST './qrap 5 kvm -m '${VMEM}' -cpu host -smp '${VCPUS} \
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' -kernel ' "/boot/vmlinuz-$(uname -r)" \
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' -initrd mbuto.img -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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pane_wait 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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MODE=passt_in_ns
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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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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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pane_run PASST_2 "./pasta ${__opts} -P ${__pid2_file} -t 10004,10005 -T 10003,10001 -u 10004,10005 -U 10003,10001"
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sleep 1
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pane_run PASST_1 ''
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pane_run PASST_2 ''
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pane_wait PASST_1
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pane_wait PASST_2
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__pasta1_pid="$(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 ${__ns2_pid} -U -n --preserve-credentials"
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pane_run PASST_1 "ip -j li sh | jq -rM '.[] | select(.link_type == \"ether\").ifname'"
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pane_wait PASST_1
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__ifname="$(pane_parse PASST_1)"
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pane_run GUEST_1 "/sbin/udhcpc -i ${__ifname}"
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pane_run GUEST_2 "/sbin/udhcpc -i ${__ifname}"
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pane_wait GUEST_1
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pane_wait GUEST_2
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sleep 2
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pane_run GUEST_1 "/sbin/dhclient -6 ${__ifname}"
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pane_run GUEST_2 "/sbin/dhclient -6 ${__ifname}"
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pane_wait GUEST_1
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pane_wait 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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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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pane_run PASST_2 "./passt -f ${__opts} -t 10004 -u 10004"
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pane_run GUEST_2 'cp mbuto.img mbuto_2.img'
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pane_wait GUEST_2
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pane_run GUEST_1 './qrap 5 kvm -m '${VMEM}' -cpu host -smp '${VCPUS} \
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' -kernel ' "/boot/vmlinuz-$(uname -r)" \
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' -initrd mbuto.img -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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pane_run GUEST_2 './qrap 5 kvm -m '${VMEM}' -cpu host -smp '${VCPUS} \
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' -kernel ' "/boot/vmlinuz-$(uname -r)" \
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' -initrd mbuto_2.img -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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pane_wait GUEST_1
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pane_wait GUEST_2
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}
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# teardown_passt() - Kill qemu and passt
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teardown_passt() {
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tmux send-keys -t ${PANE_PASST} "C-c"
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pane_wait PASST
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tmux send-keys -t ${PANE_GUEST} "C-c"
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pane_wait 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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tmux send-keys -t ${PANE_PASST} "C-c"
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pane_wait PASST
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tmux send-keys -t ${PANE_NS} "C-d"
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pane_wait NS
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}
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# teardown_passt_in_ns() - Exit namespace, kill qemu, passt and pasta
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teardown_passt_in_ns() {
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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 PASST
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tmux send-keys -t ${PANE_PASST} "C-d"
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tmux send-keys -t ${PANE_NS} "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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}
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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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tmux send-keys -t ${PANE_GUEST_1} "C-c"
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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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tmux send-keys -t ${PANE_GUEST_2} "C-c"
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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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tmux send-keys -t ${PANE_NS_1} "C-d"
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tmux send-keys -t ${PANE_NS_2} "C-d"
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pane_wait GUEST_1
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pane_wait GUEST_2
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ns_1_wait
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ns_2_wait
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pane_wait PASST_1
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pane_wait PASST_2
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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_HOST} "C-d"
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tmux send-keys -t ${PANE_PASST} "C-c"
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pane_wait PASST
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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 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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