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dracut/test/TEST-40-NBD/test.sh

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#!/bin/bash
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh
TEST_DESCRIPTION="root filesystem on NBD"
KVERSION=${KVERSION-$(uname -r)}
# Uncomment this to debug failures
#DEBUGFAIL="rd.shell rd.retry=10 rd.break"
#SERIAL="udp:127.0.0.1:9999"
SERIAL="null"
run_server() {
# Start server first
echo "NBD TEST SETUP: Starting DHCP/NBD server"
$testdir/run-qemu \
-hda $TESTDIR/server.ext2 \
-hdb $TESTDIR/nbd.ext2 \
-hdc $TESTDIR/encrypted.ext2 \
-m 256M -smp 2 \
-display none \
-net nic,macaddr=52:54:00:12:34:56,model=e1000 \
-net socket,listen=127.0.0.1:12340 \
-serial $SERIAL \
-kernel /boot/vmlinuz-$KVERSION \
-append "root=/dev/sda rootfstype=ext2 rw quiet console=ttyS0,115200n81 selinux=0" \
-initrd $TESTDIR/initramfs.server -pidfile $TESTDIR/server.pid -daemonize || return 1
sudo chmod 644 $TESTDIR/server.pid || return 1
# Cleanup the terminal if we have one
tty -s && stty sane
echo Sleeping 10 seconds to give the server a head start
sleep 10
}
client_test() {
local test_name="$1"
local mac=$2
local cmdline="$3"
local fstype=$4
local fsopt=$5
local found opts nbdinfo
[[ $fstype ]] || fstype=ext3
[[ $fsopt ]] || fsopt="ro"
echo "CLIENT TEST START: $test_name"
# Clear out the flags for each test
if ! dd if=/dev/zero of=$TESTDIR/flag.img bs=1M count=1; then
echo "Unable to make client sda image" 1>&2
return 1
fi
$testdir/run-qemu \
-hda $TESTDIR/flag.img \
-m 512M -smp 2 \
-nographic \
-net nic,macaddr=$mac,model=e1000 \
-net socket,connect=127.0.0.1:12340 \
-kernel /boot/vmlinuz-$KVERSION \
-append "$cmdline $DEBUGFAIL rd.auto rd.info rd.retry=10 ro console=ttyS0,115200n81 selinux=0 " \
-initrd $TESTDIR/initramfs.testing
if [[ $? -ne 0 ]] || ! grep -F -m 1 -q nbd-OK $TESTDIR/flag.img; then
echo "CLIENT TEST END: $test_name [FAILED - BAD EXIT]"
return 1
fi
# nbdinfo=( fstype fsoptions )
nbdinfo=($(awk '{print $2, $3; exit}' $TESTDIR/flag.img))
if [[ "${nbdinfo[0]}" != "$fstype" ]]; then
echo "CLIENT TEST END: $test_name [FAILED - WRONG FS TYPE] \"${nbdinfo[0]}\" != \"$fstype\""
return 1
fi
opts=${nbdinfo[1]},
while [[ $opts ]]; do
if [[ ${opts%%,*} = $fsopt ]]; then
found=1
break
fi
opts=${opts#*,}
done
if [[ ! $found ]]; then
echo "CLIENT TEST END: $test_name [FAILED - BAD FS OPTS] \"${nbdinfo[1]}\" != \"$fsopt\""
return 1
fi
echo "CLIENT TEST END: $test_name [OK]"
}
test_run() {
modinfo nbd &>/dev/null || { echo "Kernel does not support nbd"; exit 1; }
if ! run_server; then
echo "Failed to start server" 1>&2
return 1
fi
client_run
kill_server
}
client_run() {
# The default is ext3,errors=continue so use that to determine
# if our options were parsed and used
client_test "NBD root=nbd:IP:port::fsopts" 52:54:00:12:34:00 \
"root=nbd:192.168.50.1:2000::errors=panic rd.luks=0" \
ext3 errors=panic || return 1
client_test "NBD root=nbd:IP:port" 52:54:00:12:34:00 \
"root=nbd:192.168.50.1:2000 rd.luks=0" || return 1
client_test "NBD root=nbd:IP:port:fstype" 52:54:00:12:34:00 \
"root=nbd:192.168.50.1:2000:ext2 rd.luks=0" ext2 || return 1
client_test "NBD root=nbd:IP:port:fstype:fsopts" 52:54:00:12:34:00 \
"root=nbd:192.168.50.1:2000:ext2:errors=panic rd.luks=0" \
ext2 errors=panic || return 1
client_test "NBD Bridge root=nbd:IP:port:fstype:fsopts" 52:54:00:12:34:00 \
"root=nbd:192.168.50.1:2000:ext2:errors=panic bridge rd.luks=0" \
ext2 errors=panic || return 1
# There doesn't seem to be a good way to validate the NBD options, so
# just check that we don't screw up the other options
client_test "NBD root=nbd:IP:port:::NBD opts" 52:54:00:12:34:00 \
"root=nbd:192.168.50.1:2000:::bs=2048 rd.luks=0" || return 1
client_test "NBD root=nbd:IP:port:fstype::NBD opts" 52:54:00:12:34:00 \
"root=nbd:192.168.50.1:2000:ext2::bs=2048 rd.luks=0" ext2 || return 1
client_test "NBD root=nbd:IP:port:fstype:fsopts:NBD opts" \
52:54:00:12:34:00 \
"root=nbd:192.168.50.1:2000:ext2:errors=panic:bs=2048 rd.luks=0" \
ext2 errors=panic || return 1
# DHCP root-path parsing
client_test "NBD root=dhcp DHCP root-path nbd:srv:port" 52:54:00:12:34:01 \
"root=dhcp rd.luks=0" || return 1
client_test "NBD Bridge root=dhcp DHCP root-path nbd:srv:port" 52:54:00:12:34:01 \
"root=dhcp bridge rd.luks=0" || return 1
client_test "NBD root=dhcp DHCP root-path nbd:srv:port:fstype" \
52:54:00:12:34:02 "root=dhcp rd.luks=0" ext2 || return 1
client_test "NBD root=dhcp DHCP root-path nbd:srv:port::fsopts" \
52:54:00:12:34:03 "root=dhcp rd.luks=0" ext3 errors=panic || return 1
client_test "NBD root=dhcp DHCP root-path nbd:srv:port:fstype:fsopts" \
52:54:00:12:34:04 "root=dhcp rd.luks=0" ext2 errors=panic || return 1
# netroot handling
client_test "NBD netroot=nbd:IP:port" 52:54:00:12:34:00 \
"netroot=nbd:192.168.50.1:2000 rd.luks=0" || return 1
client_test "NBD netroot=dhcp DHCP root-path nbd:srv:port:fstype:fsopts" \
52:54:00:12:34:04 "netroot=dhcp rd.luks=0" ext2 errors=panic || return 1
# Encrypted root handling via LVM/LUKS over NBD
. $TESTDIR/luks.uuid
client_test "NBD root=LABEL=dracut netroot=nbd:IP:port" \
52:54:00:12:34:00 \
"root=LABEL=dracut rd.luks.uuid=$ID_FS_UUID rd.lv.vg=dracut netroot=nbd:192.168.50.1:2001" || return 1
# XXX This should be ext2,errors=panic but that doesn't currently
# XXX work when you have a real root= line in addition to netroot=
# XXX How we should work here needs clarification
client_test "NBD root=LABEL=dracut netroot=dhcp (w/ fstype and opts)" \
52:54:00:12:34:05 \
"root=LABEL=dracut rd.luks.uuid=$ID_FS_UUID rd.lv.vg=dracut netroot=dhcp" || return 1
if [[ -s server.pid ]]; then
sudo kill -TERM $(cat $TESTDIR/server.pid)
rm -f -- $TESTDIR/server.pid
fi
}
make_encrypted_root() {
# Create the blank file to use as a root filesystem
dd if=/dev/null of=$TESTDIR/encrypted.ext2 bs=1M seek=20
dd if=/dev/null of=$TESTDIR/flag.img bs=1M seek=1
kernel=$KVERSION
# Create what will eventually be our root filesystem onto an overlay
(
export initdir=$TESTDIR/overlay/source
. $basedir/dracut-functions.sh
mkdir -p "$initdir"
(cd "$initdir"; mkdir -p dev sys proc etc var/run tmp )
inst_multiple sh df free ls shutdown poweroff stty cat ps ln ip \
mount dmesg mkdir cp ping
for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
[ -f ${_terminfodir}/l/linux ] && break
done
inst_multiple -o ${_terminfodir}/l/linux
inst ./client-init.sh /sbin/init
inst_simple /etc/os-release
find_binary plymouth >/dev/null && inst_multiple plymouth
cp -a /etc/ld.so.conf* $initdir/etc
sudo ldconfig -r "$initdir"
)
# second, install the files needed to make the root filesystem
(
export initdir=$TESTDIR/overlay
. $basedir/dracut-functions.sh
inst_multiple mke2fs poweroff cp umount tune2fs
inst_hook emergency 000 ./hard-off.sh
inst_hook initqueue 01 ./create-root.sh
inst_hook initqueue/finished 01 ./finished-false.sh
inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
)
# create an initramfs that will create the target root filesystem.
# We do it this way so that we do not risk trashing the host mdraid
# devices, volume groups, encrypted partitions, etc.
$basedir/dracut.sh -l -i $TESTDIR/overlay / \
-m "dash crypt lvm mdraid udev-rules base rootfs-block kernel-modules" \
-d "piix ide-gd_mod ata_piix ext2 ext3 sd_mod" \
-f $TESTDIR/initramfs.makeroot $KVERSION || return 1
rm -rf -- $TESTDIR/overlay
# Invoke KVM and/or QEMU to actually create the target filesystem.
$testdir/run-qemu \
-hda $TESTDIR/flag.img \
-hdb $TESTDIR/encrypted.ext2 \
-m 256M -smp 2\
-nographic -net none \
-kernel "/boot/vmlinuz-$kernel" \
-append "root=/dev/fakeroot rw quiet console=ttyS0,115200n81 selinux=0" \
-initrd $TESTDIR/initramfs.makeroot || return 1
grep -F -m 1 -q dracut-root-block-created $TESTDIR/flag.img || return 1
grep -F -a -m 1 ID_FS_UUID $TESTDIR/flag.img > $TESTDIR/luks.uuid
}
make_client_root() {
dd if=/dev/null of=$TESTDIR/nbd.ext2 bs=1M seek=30
mke2fs -F -j $TESTDIR/nbd.ext2
mkdir $TESTDIR/mnt
sudo mount -o loop $TESTDIR/nbd.ext2 $TESTDIR/mnt
kernel=$KVERSION
(
export initdir=$TESTDIR/mnt
. $basedir/dracut-functions.sh
mkdir -p "$initdir"
(cd "$initdir"; mkdir -p dev sys proc etc var/run tmp )
inst_multiple sh ls shutdown poweroff stty cat ps ln ip \
dmesg mkdir cp ping
for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
[ -f ${_terminfodir}/l/linux ] && break
done
inst_multiple -o ${_terminfodir}/l/linux
inst ./client-init.sh /sbin/init
inst_simple /etc/os-release
inst /etc/nsswitch.conf /etc/nsswitch.conf
inst /etc/passwd /etc/passwd
inst /etc/group /etc/group
for i in /usr/lib*/libnss_files* /lib*/libnss_files*;do
[ -e "$i" ] || continue
inst $i
done
cp -a /etc/ld.so.conf* $initdir/etc
sudo ldconfig -r "$initdir"
)
sudo umount $TESTDIR/mnt
rm -fr -- $TESTDIR/mnt
}
make_server_root() {
dd if=/dev/null of=$TESTDIR/server.ext2 bs=1M seek=30
mke2fs -F $TESTDIR/server.ext2
mkdir $TESTDIR/mnt
sudo mount -o loop $TESTDIR/server.ext2 $TESTDIR/mnt
kernel=$KVERSION
(
export initdir=$TESTDIR/mnt
. $basedir/dracut-functions.sh
mkdir -p "$initdir"
(
cd "$initdir";
mkdir -p dev sys proc etc var/run var/lib/dhcpd tmp
)
inst_multiple sh ls shutdown poweroff stty cat ps ln ip \
dmesg mkdir cp ping grep \
sleep nbd-server chmod
for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
[ -f ${_terminfodir}/l/linux ] && break
done
inst_multiple -o ${_terminfodir}/l/linux
instmods af_packet
type -P dhcpd >/dev/null && inst_multiple dhcpd
[ -x /usr/sbin/dhcpd3 ] && inst /usr/sbin/dhcpd3 /usr/sbin/dhcpd
inst ./server-init.sh /sbin/init
inst_simple /etc/os-release
inst ./hosts /etc/hosts
inst ./dhcpd.conf /etc/dhcpd.conf
inst /etc/nsswitch.conf /etc/nsswitch.conf
inst /etc/passwd /etc/passwd
inst /etc/group /etc/group
for i in /usr/lib*/libnss_files* /lib*/libnss_files*;do
[ -e "$i" ] || continue
inst $i
done
cp -a /etc/ld.so.conf* $initdir/etc
sudo ldconfig -r "$initdir"
)
sudo umount $TESTDIR/mnt
rm -fr -- $TESTDIR/mnt
}
test_setup() {
modinfo nbd &>/dev/null || { echo "Kernel does not support nbd"; exit 1; }
make_encrypted_root || return 1
make_client_root || return 1
make_server_root || return 1
# Make the test image
(
export initdir=$TESTDIR/overlay
. $basedir/dracut-functions.sh
inst_multiple poweroff shutdown
inst_hook emergency 000 ./hard-off.sh
inst_simple ./99-idesymlinks.rules /etc/udev/rules.d/99-idesymlinks.rules
inst ./cryptroot-ask.sh /sbin/cryptroot-ask
# inst ./debug-shell.service /lib/systemd/system/debug-shell.service
# mkdir -p "${initdir}/lib/systemd/system/sysinit.target.wants"
# ln -fs ../debug-shell.service "${initdir}/lib/systemd/system/sysinit.target.wants/debug-shell.service"
. $TESTDIR/luks.uuid
mkdir -p $initdir/etc
echo "luks-$ID_FS_UUID /dev/nbd0 /etc/key" > $initdir/etc/crypttab
echo -n test > $initdir/etc/key
)
sudo $basedir/dracut.sh -l -i $TESTDIR/overlay / \
-m "dash udev-rules rootfs-block base debug kernel-modules" \
-d "af_packet piix ide-gd_mod ata_piix ext2 ext3 sd_mod e1000" \
-f $TESTDIR/initramfs.server $KVERSION || return 1
sudo $basedir/dracut.sh -l -i $TESTDIR/overlay / \
-o "plymouth" \
-a "debug watchdog" \
-d "af_packet piix ide-gd_mod ata_piix ext2 ext3 sd_mod e1000 i6300esb ib700wdt" \
-f $TESTDIR/initramfs.testing $KVERSION || return 1
}
kill_server() {
if [[ -s $TESTDIR/server.pid ]]; then
sudo kill -TERM $(cat $TESTDIR/server.pid)
rm -f -- $TESTDIR/server.pid
fi
}
test_cleanup() {
kill_server
}
. $testdir/test-functions