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|
#!/bin/sh
#
# SPDX-License-Identifier: AGPL-3.0-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>
VCPUS="$( [ $(nproc) -ge 8 ] && echo 4 || echo $(( $(nproc) / 2 + 1 )) )"
__mem_kib="$(sed -n 's/MemTotal:[ ]*\([0-9]*\) kB/\1/p' /proc/meminfo)"
VMEM="$((${__mem_kib} / 1024 / 8))"
# setup_build() - Set up pane layout for build tests
setup_build() {
MODE=build
layout_host
}
# setup_passt() - Build guest initrd with mbuto, start qemu and passt
setup_passt() {
MODE=passt
layout_passt
__mbuto_dir="$(mktemp -d)"
pane_run GUEST "git -C ${__mbuto_dir} clone https://mbuto.lameexcu.se/mbuto/"
pane_wait GUEST
pane_run GUEST "${__mbuto_dir}/mbuto/mbuto -p passt -c lz4 -f mbuto.img"
pane_wait GUEST
rm -rf "${__mbuto_dir}"
# Ports:
#
# guest | host
# --------------|---------------------
# 10001 as server | forwarded to guest
# 10003 | as server
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/passt.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
pane_run PASST "./passt ${__opts} -f -t 10001 -u 10001"
sleep 1
pane_run GUEST './qrap 5 kvm -m '${VMEM}' -cpu host -smp '${VCPUS} \
'-kernel' "/boot/vmlinuz-$(uname -r)" \
'-initrd mbuto.img -nographic -serial stdio' \
'-nodefaults ' \
'-append "console=ttyS0 mitigations=off apparmor=0 ' \
'virtio-net.napi_tx=1"' \
"-device virtio-net-pci,netdev=hostnet0,x-txburst=16384"\
"-netdev socket,fd=5,id=hostnet0"
pane_wait GUEST
}
# setup_pasta() - Create a network and user namespace, connect pasta to it
setup_pasta() {
MODE=pasta
layout_pasta
pane_run NS "unshare -rUn /bin/sh "
pane_wait NS
pane_run NS 'echo $$'
pane_wait NS
__pasta_pid="$(pane_parse NS)"
# Ports:
#
# ns | host
# ------------------|---------------------
# 10002 as server | spliced to ns
# 10003 spliced to init | as server
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/pasta.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
pane_run PASST "./pasta ${__opts} -f -t 10002 -T 10003 -u 10002 -U 10003 ${__pasta_pid}"
sleep 1
}
# setup_passt_in_ns() - Set up namespace (with pasta), run qemu and passt into it
setup_passt_in_ns() {
MODE=passt_in_ns
layout_passt_in_pasta
# Ports:
#
# guest | ns | host
# -------------|--------------------|-----------------
# 10001 as server | forwarded to guest | spliced to ns
# 10002 | as server | spliced to ns
# 10003 | spliced to init | as server
# 10011 as server | forwarded to guest | spliced to ns
# 10012 | as server | spliced to ns
# 10013 | spliced to init | as server
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/pasta_with_passt.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
pane_run PASST "./pasta ${__opts} -t 10001,10002,10011,10012 -T 10003,10013 -u 10001,10002,10011,10012 -U 10003,10013"
sleep 1
pane_run PASST ''
pane_wait PASST
pane_run PASST 'echo $$'
pane_wait PASST
__ns_pid="$(pane_parse PASST)"
pane_run GUEST "nsenter -t ${__ns_pid} -U -n --preserve-credentials"
pane_run NS "nsenter -t ${__ns_pid} -U -n --preserve-credentials"
pane_wait GUEST
pane_wait NS
pane_run NS "ip -j li sh | jq -rM '.[] | select(.link_type == \"ether\").ifname'"
pane_wait NS
__ifname="$(pane_parse NS)"
pane_run NS "/sbin/udhcpc -i ${__ifname}"
pane_wait NS
sleep 2
pane_run NS "/sbin/dhclient -6 ${__ifname}"
pane_wait NS
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/passt_in_pasta.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
#pane_run PASST "valgrind --max-stackframe=2097208 ./passt -f ${__opts} -t 10001,10011 -u 10001,10011"
pane_run PASST "./passt -f ${__opts} -t 10001,10011 -u 10001,10011"
sleep 1
pane_run GUEST './qrap 5 kvm -m '${VMEM}' -cpu host -smp '${VCPUS} \
'-kernel' "/boot/vmlinuz-$(uname -r)" \
'-initrd mbuto.img -nographic -serial stdio' \
'-nodefaults ' \
'-append "console=ttyS0 mitigations=off apparmor=0 ' \
'virtio-net.napi_tx=1"' \
"-device virtio-net-pci,netdev=hostnet0,x-txburst=131072"\
"-netdev socket,fd=5,id=hostnet0"
pane_wait GUEST
}
# setup_two_guests() - Set up two namespace, run qemu and passt in both of them
setup_two_guests() {
MODE=passt_in_ns
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 /tmp/pasta_1.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
pane_run PASST_1 "./pasta ${__opts} -t 10001,10002 -T 10003,10004 -u 10001,10002 -U 10003,10004"
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/pasta_2.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
pane_run PASST_2 "./pasta ${__opts} -t 10004,10005 -T 10003,10001 -u 10004,10005 -U 10003,10001"
sleep 1
pane_run PASST_1 ''
pane_run PASST_2 ''
pane_wait PASST_1
pane_wait PASST_2
pane_run PASST_1 'echo $$'
pane_run PASST_2 'echo $$'
pane_wait PASST_1
pane_wait PASST_2
__ns1_pid="$(pane_parse PASST_1)"
__ns2_pid="$(pane_parse PASST_2)"
pane_run GUEST_1 "nsenter -t ${__ns1_pid} -U -n --preserve-credentials"
pane_run GUEST_2 "nsenter -t ${__ns2_pid} -U -n --preserve-credentials"
pane_run PASST_1 "ip -j li sh | jq -rM '.[] | select(.link_type == \"ether\").ifname'"
pane_wait PASST_1
__ifname="$(pane_parse PASST_1)"
pane_run GUEST_1 "/sbin/udhcpc -i ${__ifname}"
pane_run GUEST_2 "/sbin/udhcpc -i ${__ifname}"
pane_wait GUEST_1
pane_wait GUEST_2
sleep 2
pane_run GUEST_1 "/sbin/dhclient -6 ${__ifname}"
pane_run GUEST_2 "/sbin/dhclient -6 ${__ifname}"
pane_wait GUEST_1
pane_wait GUEST_2
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/passt_1.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
pane_run PASST_1 "./passt -f ${__opts} -t 10001 -u 10001"
sleep 1
__opts=
[ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/passt_2.pcap"
[ ${DEBUG} -eq 1 ] && __opts="${__opts} -d"
pane_run PASST_2 "./passt -f ${__opts} -t 10004 -u 10004"
pane_run GUEST_2 'cp mbuto.img mbuto_2.img'
pane_wait GUEST_2
pane_run GUEST_1 './qrap 5 kvm -m '${VMEM}' -cpu host -smp '${VCPUS} \
'-kernel' "/boot/vmlinuz-$(uname -r)" \
'-initrd mbuto.img -nographic -serial stdio' \
'-nodefaults ' \
'-append "console=ttyS0 mitigations=off apparmor=0 ' \
'virtio-net.napi_tx=1"' \
"-device virtio-net-pci,netdev=hostnet0,x-txburst=16384"\
"-netdev socket,fd=5,id=hostnet0"
pane_run GUEST_2 './qrap 5 kvm -m '${VMEM}' -cpu host -smp '${VCPUS} \
'-kernel' "/boot/vmlinuz-$(uname -r)" \
'-initrd mbuto_2.img -nographic -serial stdio' \
'-nodefaults ' \
'-append "console=ttyS0 mitigations=off apparmor=0 ' \
'virtio-net.napi_tx=1"' \
"-device virtio-net-pci,netdev=hostnet0,x-txburst=16384"\
"-netdev socket,fd=5,id=hostnet0"
pane_wait GUEST_1
pane_wait GUEST_2
}
# teardown_passt() - Kill qemu and passt
teardown_passt() {
tmux send-keys -t ${PANE_PASST} "C-c"
pane_wait PASST
tmux send-keys -t ${PANE_GUEST} "C-c"
pane_wait GUEST
}
# teardown_passt() - Exit namespace, kill pasta process
teardown_pasta() {
tmux send-keys -t ${PANE_PASST} "C-c"
pane_wait PASST
tmux send-keys -t ${PANE_NS} "C-d"
pane_wait NS
}
# teardown_passt_in_ns() - Exit namespace, kill qemu, passt and pasta
teardown_passt_in_ns() {
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 PASST
tmux send-keys -t ${PANE_PASST} "C-d"
tmux send-keys -t ${PANE_NS} "C-d"
pane_wait GUEST
pane_wait NS
pane_wait PASST
}
# teardown_two_guests() - Exit namespaces, kill qemu processes, passt and pasta
teardown_two_guests() {
tmux send-keys -t ${PANE_GUEST_1} "C-c"
pane_wait GUEST_1
tmux send-keys -t ${PANE_GUEST_1} "C-d"
tmux send-keys -t ${PANE_GUEST_2} "C-c"
pane_wait GUEST_2
tmux send-keys -t ${PANE_GUEST_2} "C-d"
tmux send-keys -t ${PANE_PASST_1} "C-c"
pane_wait PASST_1
tmux send-keys -t ${PANE_PASST_1} "C-d"
tmux send-keys -t ${PANE_PASST_2} "C-c"
pane_wait PASST_2
tmux send-keys -t ${PANE_PASST_2} "C-d"
tmux send-keys -t ${PANE_NS_1} "C-d"
tmux send-keys -t ${PANE_NS_2} "C-d"
pane_wait GUEST_1
pane_wait GUEST_2
ns_1_wait
ns_2_wait
pane_wait PASST_1
pane_wait PASST_2
}
# setup() - Run setup_*() functions
# $*: Suffix list of setup_*() functions to be called
setup() {
for arg do
eval setup_${arg}
done
}
# teardown() - Run teardown_*() functions
# $*: Suffix list of teardown_*() functions to be called
teardown() {
for arg do
eval teardown_${arg}
done
}
|
