test/test-functions

   1 #!/bin/bash
   2 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
   3 # ex: ts=8 sw=4 sts=4 et filetype=sh
   4 PATH=/sbin:/bin:/usr/sbin:/usr/bin
   5 export PATH
   6
   7 LOOKS_LIKE_DEBIAN=$(source /etc/os-release && [[ "$ID" = "debian" || " $ID_LIKE " = *" debian "* ]] && echo yes || true)
   8 LOOKS_LIKE_ARCH=$(source /etc/os-release && [[ "$ID" = "arch" || " $ID_LIKE " = *" arch "* ]] && echo yes || true)
   9 LOOKS_LIKE_SUSE=$(source /etc/os-release && [[ " $ID_LIKE " = *" suse "* ]] && echo yes || true)
  10 KERNEL_VER=${KERNEL_VER-$(uname -r)}
  11 KERNEL_MODS="/lib/modules/$KERNEL_VER/"
  12 QEMU_TIMEOUT="${QEMU_TIMEOUT:-infinity}"
  13 NSPAWN_TIMEOUT="${NSPAWN_TIMEOUT:-infinity}"
  14 TIMED_OUT=  # will be 1 after run_* if *_TIMEOUT is set and test timed out
  15 [[ "$LOOKS_LIKE_SUSE" ]] && FSTYPE="${FSTYPE:-btrfs}" || FSTYPE="${FSTYPE:-ext4}"
  16 UNIFIED_CGROUP_HIERARCHY="${UNIFIED_CGROUP_HIERARCHY:-default}"
  17 EFI_MOUNT="$(bootctl -p 2>/dev/null || echo /boot)"
  18 QEMU_MEM="${QEMU_MEM:-512M}"
  19
  20 if ! ROOTLIBDIR=$(pkg-config --variable=systemdutildir systemd); then
  21     echo "WARNING! Cannot determine rootlibdir from pkg-config, assuming /usr/lib/systemd" >&2
  22     ROOTLIBDIR=/usr/lib/systemd
  23 fi
  24
  25 PATH_TO_INIT=$ROOTLIBDIR/systemd
  26
  27 BASICTOOLS="test sh bash setsid loadkeys setfont login sulogin gzip sleep echo mount umount cryptsetup date dmsetup modprobe sed cmp tee rm true false chmod chown ln xargs"
  28 DEBUGTOOLS="df free ls stty cat ps ln ip route dmesg dhclient mkdir cp ping dhclient strace less grep id tty touch du sort hostname find"
  29
  30 STATEDIR="${BUILD_DIR:-.}/test/$(basename $(dirname $(realpath $0)))"
  31 STATEFILE="$STATEDIR/.testdir"
  32 TESTLOG="$STATEDIR/test.log"
  33
  34 is_built_with_asan() {
  35     if ! type -P objdump >/dev/null; then
  36         ddebug "Failed to find objdump. Assuming systemd hasn't been built with ASAN."
  37         return 1
  38     fi
  39
  40     # Borrowed from https://github.com/google/oss-fuzz/blob/cd9acd02f9d3f6e80011cc1e9549be526ce5f270/infra/base-images/base-runner/bad_build_check#L182
  41     local _asan_calls=$(objdump -dC $BUILD_DIR/systemd-journald | egrep "callq\s+[0-9a-f]+\s+<__asan" -c)
  42     if (( $_asan_calls < 1000 )); then
  43         return 1
  44     else
  45         return 0
  46     fi
  47 }
  48
  49 IS_BUILT_WITH_ASAN=$(is_built_with_asan && echo yes || echo no)
  50
  51 if [[ "$IS_BUILT_WITH_ASAN" = "yes" ]]; then
  52     STRIP_BINARIES=no
  53     SKIP_INITRD=yes
  54     PATH_TO_INIT=$ROOTLIBDIR/systemd-under-asan
  55     QEMU_MEM="1536M"
  56     QEMU_SMP=4
  57 fi
  58
  59 function find_qemu_bin() {
  60     # SUSE and Red Hat call the binary qemu-kvm. Debian and Gentoo call it kvm.
  61     # Either way, only use this version if we aren't running in KVM, because
  62     # nested KVM is flaky still.
  63     if [ `systemd-detect-virt -v` != kvm ] ; then
  64         [ "$QEMU_BIN" ] || QEMU_BIN=$(which -a kvm qemu-kvm 2>/dev/null | grep '^/' -m1)
  65     fi
  66
  67     [ "$ARCH" ] || ARCH=$(uname -m)
  68     case $ARCH in
  69     x86_64)
  70         # QEMU's own build system calls it qemu-system-x86_64
  71         [ "$QEMU_BIN" ] || QEMU_BIN=$(which -a qemu-system-x86_64 2>/dev/null | grep '^/' -m1)
  72         ;;
  73     i*86)
  74         # new i386 version of QEMU
  75         [ "$QEMU_BIN" ] || QEMU_BIN=$(which -a qemu-system-i386 2>/dev/null | grep '^/' -m1)
  76
  77         # i386 version of QEMU
  78         [ "$QEMU_BIN" ] || QEMU_BIN=$(which -a qemu 2>/dev/null | grep '^/' -m1)
  79         ;;
  80     ppc64*)
  81         [ "$QEMU_BIN" ] || QEMU_BIN=$(which -a qemu-system-$ARCH 2>/dev/null | grep '^/' -m1)
  82         ;;
  83     esac
  84
  85     if [ ! -e "$QEMU_BIN" ]; then
  86         echo "Could not find a suitable QEMU binary" >&2
  87         return 1
  88     fi
  89 }
  90
  91 # Return 0 if QEMU did run (then you must check the result state/logs for actual
  92 # success), or 1 if QEMU is not available.
  93 run_qemu() {
  94     if [ -f /etc/machine-id ]; then
  95         read MACHINE_ID < /etc/machine-id
  96         [ -z "$INITRD" ] && [ -e "$EFI_MOUNT/$MACHINE_ID/$KERNEL_VER/initrd" ] \
  97             && INITRD="$EFI_MOUNT/$MACHINE_ID/$KERNEL_VER/initrd"
  98         [ -z "$KERNEL_BIN" ] && [ -e "$EFI_MOUNT/$MACHINE_ID/$KERNEL_VER/linux" ] \
  99             && KERNEL_BIN="$EFI_MOUNT/$MACHINE_ID/$KERNEL_VER/linux"
 100     fi
 101
 102     if [[ ! "$KERNEL_BIN" ]]; then
 103         if [[ "$LOOKS_LIKE_ARCH" ]]; then
 104             KERNEL_BIN=/boot/vmlinuz-linux
 105         else
 106             KERNEL_BIN=/boot/vmlinuz-$KERNEL_VER
 107         fi
 108     fi
 109
 110     default_fedora_initrd=/boot/initramfs-${KERNEL_VER}.img
 111     default_debian_initrd=/boot/initrd.img-${KERNEL_VER}
 112     default_arch_initrd=/boot/initramfs-linux.img
 113     default_suse_initrd=/boot/initrd-${KERNEL_VER}
 114     if [[ ! "$INITRD" ]]; then
 115         if [[ -e "$default_fedora_initrd" ]]; then
 116             INITRD="$default_fedora_initrd"
 117         elif [[ "$LOOKS_LIKE_DEBIAN" && -e "$default_debian_initrd" ]]; then
 118             INITRD="$default_debian_initrd"
 119         elif [[ "$LOOKS_LIKE_ARCH" && -e "$default_arch_initrd" ]]; then
 120             INITRD="$default_arch_initrd"
 121         elif [[ "$LOOKS_LIKE_SUSE" && -e "$default_suse_initrd" ]]; then
 122             INITRD="$default_suse_initrd"
 123         fi
 124     fi
 125
 126     [ "$QEMU_SMP" ]   || QEMU_SMP=1
 127
 128     find_qemu_bin || return 1
 129
 130     local _cgroup_args
 131     if [[ "$UNIFIED_CGROUP_HIERARCHY" = "yes" ]]; then
 132         _cgroup_args="systemd.unified_cgroup_hierarchy=yes"
 133     elif [[ "$UNIFIED_CGROUP_HIERARCHY" = "no" ]]; then
 134         _cgroup_args="systemd.unified_cgroup_hierarchy=no systemd.legacy_systemd_cgroup_controller=yes"
 135     elif [[ "$UNIFIED_CGROUP_HIERARCHY" = "hybrid" ]]; then
 136         _cgroup_args="systemd.unified_cgroup_hierarchy=no systemd.legacy_systemd_cgroup_controller=no"
 137     elif [[ "$UNIFIED_CGROUP_HIERARCHY" != "default" ]]; then
 138         dfatal "Unknown UNIFIED_CGROUP_HIERARCHY. Got $UNIFIED_CGROUP_HIERARCHY, expected [yes|no|hybrid|default]"
 139         exit 1
 140     fi
 141
 142 if [[ "$LOOKS_LIKE_SUSE" ]]; then
 143     PARAMS+="rd.hostonly=0"
 144 else
 145     PARAMS+="ro"
 146 fi
 147
 148 KERNEL_APPEND="$PARAMS \
 149 root=/dev/sda1 \
 150 raid=noautodetect \
 151 loglevel=2 \
 152 init=$PATH_TO_INIT \
 153 console=ttyS0 \
 154 selinux=0 \
 155 printk.devkmsg=on \
 156 $_cgroup_args \
 157 $KERNEL_APPEND \
 158 "
 159
 160     QEMU_OPTIONS="-smp $QEMU_SMP \
 161 -net none \
 162 -m $QEMU_MEM \
 163 -nographic \
 164 -kernel $KERNEL_BIN \
 165 -drive format=raw,cache=unsafe,file=${TESTDIR}/rootdisk.img \
 166 "
 167
 168     if [[ "$INITRD" && "$SKIP_INITRD" != "yes" ]]; then
 169         QEMU_OPTIONS="$QEMU_OPTIONS -initrd $INITRD"
 170     fi
 171
 172     # Let's use KVM if it is available, but let's avoid using nested KVM as that is still flaky
 173     if [ -c /dev/kvm -a `systemd-detect-virt -v` != kvm ]; then
 174         QEMU_OPTIONS="$QEMU_OPTIONS -machine accel=kvm -enable-kvm -cpu host"
 175     fi
 176
 177     if [[ "$QEMU_TIMEOUT" != "infinity" ]]; then
 178         QEMU_BIN="timeout --foreground $QEMU_TIMEOUT $QEMU_BIN"
 179     fi
 180     (set -x; $QEMU_BIN $QEMU_OPTIONS -append "$KERNEL_APPEND")
 181     rc=$?
 182     if [ "$rc" = 124 ] && [ "$QEMU_TIMEOUT" != "infinity" ]; then
 183         derror "test timed out after $QEMU_TIMEOUT s"
 184         TIMED_OUT=1
 185     else
 186         [ "$rc" != 0 ] && derror "QEMU failed with exit code $rc"
 187     fi
 188     return 0
 189 }
 190
 191 # Return 0 if nspawn did run (then you must check the result state/logs for actual
 192 # success), or 1 if nspawn is not available.
 193 run_nspawn() {
 194     [[ -d /run/systemd/system ]] || return 1
 195
 196     local _nspawn_cmd="$BUILD_DIR/systemd-nspawn $NSPAWN_ARGUMENTS --register=no --kill-signal=SIGKILL --directory=$TESTDIR/$1 $PATH_TO_INIT $KERNEL_APPEND"
 197     if [[ "$NSPAWN_TIMEOUT" != "infinity" ]]; then
 198         _nspawn_cmd="timeout --foreground $NSPAWN_TIMEOUT $_nspawn_cmd"
 199     fi
 200
 201     if [[ "$UNIFIED_CGROUP_HIERARCHY" = "hybrid" ]]; then
 202         dwarn "nspawn doesn't support UNIFIED_CGROUP_HIERARCHY=hybrid, skipping"
 203         exit
 204     elif [[ "$UNIFIED_CGROUP_HIERARCHY" = "yes" || "$UNIFIED_CGROUP_HIERARCHY" = "no" ]]; then
 205         _nspawn_cmd="env UNIFIED_CGROUP_HIERARCHY=$UNIFIED_CGROUP_HIERARCHY $_nspawn_cmd"
 206     elif [[ "$UNIFIED_CGROUP_HIERARCHY" = "default" ]]; then
 207         _nspawn_cmd="env --unset=UNIFIED_CGROUP_HIERARCHY $_nspawn_cmd"
 208     else
 209         dfatal "Unknown UNIFIED_CGROUP_HIERARCHY. Got $UNIFIED_CGROUP_HIERARCHY, expected [yes|no|hybrid|default]"
 210         exit 1
 211     fi
 212
 213     (set -x; $_nspawn_cmd)
 214     rc=$?
 215     if [ "$rc" = 124 ] && [ "$NSPAWN_TIMEOUT" != "infinity" ]; then
 216         derror "test timed out after $NSPAWN_TIMEOUT s"
 217         TIMED_OUT=1
 218     else
 219         [ "$rc" != 0 ] && derror "nspawn failed with exit code $rc"
 220     fi
 221     return 0
 222 }
 223
 224 setup_basic_environment() {
 225     # create the basic filesystem layout
 226     setup_basic_dirs
 227
 228     install_systemd
 229     install_missing_libraries
 230     install_config_files
 231     create_rc_local
 232     install_basic_tools
 233     install_libnss
 234     install_pam
 235     install_dbus
 236     install_fonts
 237     install_keymaps
 238     install_terminfo
 239     install_execs
 240     install_fsck
 241     install_plymouth
 242     install_debug_tools
 243     install_ld_so_conf
 244     setup_selinux
 245     strip_binaries
 246     install_depmod_files
 247     generate_module_dependencies
 248     if [[ "$IS_BUILT_WITH_ASAN" = "yes" ]]; then
 249          create_asan_wrapper
 250     fi
 251 }
 252
 253 setup_selinux() {
 254     # don't forget KERNEL_APPEND='... selinux=1 ...'
 255     if [[ "$SETUP_SELINUX" != "yes" ]]; then
 256         ddebug "Don't setup SELinux"
 257         return 0
 258     fi
 259     ddebug "Setup SELinux"
 260     local _conf_dir=/etc/selinux
 261     local _fixfiles_tools="bash uname cat sort uniq awk grep egrep head expr find rm secon setfiles"
 262
 263     rm -rf $initdir/$_conf_dir
 264     if ! cp -ar $_conf_dir $initdir/$_conf_dir; then
 265         dfatal "Failed to copy $_conf_dir"
 266         exit 1
 267     fi
 268
 269     cat <<EOF >$initdir/etc/systemd/system/autorelabel.service
 270 [Unit]
 271 Description=Relabel all filesystems
 272 DefaultDependencies=no
 273 Requires=local-fs.target
 274 Conflicts=shutdown.target
 275 After=local-fs.target
 276 Before=sysinit.target shutdown.target
 277 ConditionSecurity=selinux
 278 ConditionPathExists=|/.autorelabel
 279
 280 [Service]
 281 ExecStart=/bin/sh -x -c 'echo 0 >/sys/fs/selinux/enforce && fixfiles -f -F relabel && rm /.autorelabel && systemctl --force reboot'
 282 Type=oneshot
 283 TimeoutSec=0
 284 RemainAfterExit=yes
 285 EOF
 286
 287     touch $initdir/.autorelabel
 288     mkdir -p $initdir/etc/systemd/system/basic.target.wants
 289     ln -fs autorelabel.service $initdir/etc/systemd/system/basic.target.wants/autorelabel.service
 290
 291     dracut_install $_fixfiles_tools
 292     dracut_install fixfiles
 293     dracut_install sestatus
 294 }
 295
 296 install_valgrind() {
 297     if ! type -p valgrind; then
 298         dfatal "Failed to install valgrind"
 299         exit 1
 300     fi
 301
 302     local _valgrind_bins=$(strace -e execve valgrind /bin/true 2>&1 >/dev/null | perl -lne 'print $1 if /^execve\("([^"]+)"/')
 303     dracut_install $_valgrind_bins
 304
 305     local _valgrind_libs=$(LD_DEBUG=files valgrind /bin/true 2>&1 >/dev/null | perl -lne 'print $1 if m{calling init: (/.*vgpreload_.*)}')
 306     dracut_install $_valgrind_libs
 307
 308     local _valgrind_dbg_and_supp=$(
 309         strace -e open valgrind /bin/true 2>&1 >/dev/null |
 310         perl -lne 'if (my ($fname) = /^open\("([^"]+).*= (?!-)\d+/) { print $fname if $fname =~ /debug|\.supp$/ }'
 311     )
 312     dracut_install $_valgrind_dbg_and_supp
 313 }
 314
 315 create_valgrind_wrapper() {
 316     local _valgrind_wrapper=$initdir/$ROOTLIBDIR/systemd-under-valgrind
 317     ddebug "Create $_valgrind_wrapper"
 318     cat >$_valgrind_wrapper <<EOF
 319 #!/bin/bash
 320
 321 mount -t proc proc /proc
 322 exec valgrind --leak-check=full --log-file=/valgrind.out $ROOTLIBDIR/systemd "\$@"
 323 EOF
 324     chmod 0755 $_valgrind_wrapper
 325 }
 326
 327 create_asan_wrapper() {
 328     local _asan_wrapper=$initdir/$ROOTLIBDIR/systemd-under-asan
 329     ddebug "Create $_asan_wrapper"
 330     cat >$_asan_wrapper <<EOF
 331 #!/bin/bash
 332
 333 set -x
 334
 335 DEFAULT_ASAN_OPTIONS=strict_string_checks=1:detect_stack_use_after_return=1:check_initialization_order=1:strict_init_order=1
 336 DEFAULT_UBSAN_OPTIONS=print_stacktrace=1:print_summary=1
 337 DEFAULT_ENVIRONMENT="ASAN_OPTIONS=\$DEFAULT_ASAN_OPTIONS UBSAN_OPTIONS=\$DEFAULT_UBSAN_OPTIONS:halt_on_error=1"
 338
 339 mount -t proc proc /proc
 340 mount -t sysfs sysfs /sys
 341 mount -o remount,rw /
 342
 343 PATH_TO_ASAN=\$(find / -name '*libasan*' | sed 1q)
 344 if [[ "\$PATH_TO_ASAN" ]]; then
 345   # A lot of services (most notably dbus) won't start without preloading libasan
 346   # See https://github.com/systemd/systemd/issues/5004
 347   DEFAULT_ENVIRONMENT="\$DEFAULT_ENVIRONMENT LD_PRELOAD=\$PATH_TO_ASAN"
 348 fi
 349 echo DefaultEnvironment=\$DEFAULT_ENVIRONMENT >>/etc/systemd/system.conf
 350 echo DefaultTimeoutStartSec=180s >>/etc/systemd/system.conf
 351
 352 # ASAN and syscall filters aren't compatible with each other.
 353 find / -name '*.service' -type f | xargs sed -i 's/^\\(MemoryDeny\\|SystemCall\\)/#\\1/'
 354
 355 # The redirection of ASAN reports to a file prevents them from ending up in /dev/null.
 356 # But, apparently, sometimes it doesn't work: https://github.com/google/sanitizers/issues/886.
 357 JOURNALD_CONF_DIR=/etc/systemd/system/systemd-journald.service.d
 358 mkdir -p "\$JOURNALD_CONF_DIR"
 359 printf "[Service]\nEnvironment=ASAN_OPTIONS=\$DEFAULT_ASAN_OPTIONS:log_path=/systemd-journald.asan.log\n" >"\$JOURNALD_CONF_DIR/env.conf"
 360
 361 # 90s isn't enough for some services to finish when literally everything is run
 362 # under ASan+UBSan in containers, which, in turn, are run in VMs.
 363 # Let's limit which environments such services should be executed in.
 364 mkdir -p /etc/systemd/system/systemd-hwdb-update.service.d
 365 printf "[Unit]\nConditionVirtualization=container\n\n[Service]\nTimeoutSec=180s\n" >/etc/systemd/system/systemd-hwdb-update.service.d/env-override.conf
 366
 367 export ASAN_OPTIONS=\$DEFAULT_ASAN_OPTIONS:log_path=/systemd.asan.log UBSAN_OPTIONS=\$DEFAULT_UBSAN_OPTIONS
 368 exec  $ROOTLIBDIR/systemd "\$@"
 369 EOF
 370
 371     chmod 0755 $_asan_wrapper
 372 }
 373
 374 create_strace_wrapper() {
 375     local _strace_wrapper=$initdir/$ROOTLIBDIR/systemd-under-strace
 376     ddebug "Create $_strace_wrapper"
 377     cat >$_strace_wrapper <<EOF
 378 #!/bin/bash
 379
 380 exec strace -D -o /strace.out $ROOTLIBDIR/systemd "\$@"
 381 EOF
 382     chmod 0755 $_strace_wrapper
 383 }
 384
 385 install_fsck() {
 386     dracut_install /sbin/fsck*
 387     dracut_install -o /bin/fsck*
 388
 389     # fskc.reiserfs calls reiserfsck. so, install it
 390     dracut_install -o reiserfsck
 391 }
 392
 393 install_dmevent() {
 394     instmods dm_crypt =crypto
 395     type -P dmeventd >/dev/null && dracut_install dmeventd
 396     inst_libdir_file "libdevmapper-event.so*"
 397     if [[ "$LOOKS_LIKE_DEBIAN" ]]; then
 398         # dmsetup installs 55-dm and 60-persistent-storage-dm on Debian/Ubuntu
 399         # and since buster/bionic 95-dm-notify.rules
 400         # see https://gitlab.com/debian-lvm/lvm2/blob/master/debian/patches/udev.patch
 401         inst_rules 55-dm.rules 60-persistent-storage-dm.rules 95-dm-notify.rules
 402     else
 403         inst_rules 10-dm.rules 13-dm-disk.rules 95-dm-notify.rules
 404     fi
 405 }
 406
 407 install_systemd() {
 408     # install compiled files
 409     local _ninja_bin=$(type -P ninja || type -P ninja-build)
 410     if [[ -z "$_ninja_bin" ]]; then
 411         dfatal "ninja was not found"
 412         exit 1
 413     fi
 414     (set -x; DESTDIR=$initdir "$_ninja_bin" -C $BUILD_DIR install)
 415     # remove unneeded documentation
 416     rm -fr $initdir/usr/share/{man,doc}
 417     # we strip binaries since debug symbols increase binaries size a lot
 418     # and it could fill the available space
 419     strip_binaries
 420
 421    [[ "$LOOKS_LIKE_SUSE" ]] && setup_suse
 422
 423     # enable debug logging in PID1
 424     echo LogLevel=debug >> $initdir/etc/systemd/system.conf
 425 }
 426
 427 get_ldpath() {
 428     local _bin="$1"
 429     objdump -p "$_bin" 2>/dev/null | awk "/R(UN)?PATH/ { print \"$initdir\" \$2 }" | paste -sd :
 430 }
 431
 432 install_missing_libraries() {
 433     # install possible missing libraries
 434     for i in $initdir{,/usr}/{sbin,bin}/* $initdir{,/usr}/lib/systemd/{,tests/{,manual/,unsafe/}}*; do
 435         LD_LIBRARY_PATH=$(get_ldpath $i) inst_libs $i
 436     done
 437 }
 438
 439 create_empty_image() {
 440     local _size=500
 441     if [[ "$STRIP_BINARIES" = "no" ]]; then
 442         _size=$((2*_size))
 443     fi
 444     rm -f "$TESTDIR/rootdisk.img"
 445     # Create the blank file to use as a root filesystem
 446     dd if=/dev/null of="$TESTDIR/rootdisk.img" bs=1M seek="$_size"
 447     LOOPDEV=$(losetup --show -P -f $TESTDIR/rootdisk.img)
 448     [ -b "$LOOPDEV" ] || return 1
 449     echo "LOOPDEV=$LOOPDEV" >> $STATEFILE
 450     sfdisk "$LOOPDEV" <<EOF
 451 ,$((_size-10))M
 452 ,
 453 EOF
 454
 455     udevadm settle
 456
 457     local _label="-L systemd"
 458     # mkfs.reiserfs doesn't know -L. so, use --label instead
 459     [[ "$FSTYPE" == "reiserfs" ]] && _label="--label systemd"
 460     if ! mkfs -t "${FSTYPE}" ${_label} "${LOOPDEV}p1" -q; then
 461         dfatal "Failed to mkfs -t ${FSTYPE}"
 462         exit 1
 463     fi
 464 }
 465
 466 check_asan_reports() {
 467     local ret=0
 468     local root="$1"
 469
 470     if [[ "$IS_BUILT_WITH_ASAN" = "yes" ]]; then
 471         ls -l "$root"
 472         if [[ -e "$root/systemd.asan.log.1" ]]; then
 473             cat "$root/systemd.asan.log.1"
 474             ret=$(($ret+1))
 475         fi
 476
 477         journald_report=$(find "$root" -name "systemd-journald.asan.log*" -exec cat {} \;)
 478         if [[ ! -z "$journald_report" ]]; then
 479             printf "%s" "$journald_report"
 480             ret=$(($ret+1))
 481         fi
 482
 483         pids=$("$BUILD_DIR/journalctl" -D "$root/var/log/journal" | perl -alne 'print $1 if /\[(\d+)\]:\s*SUMMARY:\s+\w+Sanitizer/')
 484         if [[ ! -z "$pids" ]]; then
 485             ret=$(($ret+1))
 486             for pid in $pids; do
 487                 "$BUILD_DIR/journalctl" -D "$root/var/log/journal" _PID=$pid --no-pager
 488             done
 489         fi
 490     fi
 491
 492     return $ret
 493 }
 494
 495 check_result_nspawn() {
 496     local ret=1
 497     local journald_report=""
 498     local pids=""
 499     [[ -e $TESTDIR/$1/testok ]] && ret=0
 500     [[ -f $TESTDIR/$1/failed ]] && cp -a $TESTDIR/$1/failed $TESTDIR
 501     cp -a $TESTDIR/$1/var/log/journal $TESTDIR
 502     [[ -f $TESTDIR/failed ]] && cat $TESTDIR/failed
 503     ls -l $TESTDIR/journal/*/*.journal
 504     test -s $TESTDIR/failed && ret=$(($ret+1))
 505     [ -n "$TIMED_OUT" ] && ret=$(($ret+1))
 506     check_asan_reports "$TESTDIR/$1" || ret=$(($ret+1))
 507     return $ret
 508 }
 509
 510 # can be overridden in specific test
 511 check_result_qemu() {
 512     local ret=1
 513     mkdir -p $TESTDIR/root
 514     mount ${LOOPDEV}p1 $TESTDIR/root
 515     [[ -e $TESTDIR/root/testok ]] && ret=0
 516     [[ -f $TESTDIR/root/failed ]] && cp -a $TESTDIR/root/failed $TESTDIR
 517     cp -a $TESTDIR/root/var/log/journal $TESTDIR
 518     check_asan_reports "$TESTDIR/root" || ret=$(($ret+1))
 519     umount $TESTDIR/root
 520     [[ -f $TESTDIR/failed ]] && cat $TESTDIR/failed
 521     ls -l $TESTDIR/journal/*/*.journal
 522     test -s $TESTDIR/failed && ret=$(($ret+1))
 523     [ -n "$TIMED_OUT" ] && ret=$(($ret+1))
 524     return $ret
 525 }
 526
 527 strip_binaries() {
 528     if [[ "$STRIP_BINARIES" = "no" ]]; then
 529         ddebug "Don't strip binaries"
 530         return 0
 531     fi
 532     ddebug "Strip binaries"
 533     find "$initdir" -executable -not -path '*/lib/modules/*.ko' -type f | xargs strip --strip-unneeded | ddebug
 534 }
 535
 536 create_rc_local() {
 537     mkdir -p $initdir/etc/rc.d
 538     cat >$initdir/etc/rc.d/rc.local <<EOF
 539 #!/bin/bash
 540 exit 0
 541 EOF
 542     chmod 0755 $initdir/etc/rc.d/rc.local
 543 }
 544
 545 install_execs() {
 546     ddebug "install any Execs from the service files"
 547     (
 548     export PKG_CONFIG_PATH=$BUILD_DIR/src/core/
 549     systemdsystemunitdir=$(pkg-config --variable=systemdsystemunitdir systemd)
 550     systemduserunitdir=$(pkg-config --variable=systemduserunitdir systemd)
 551     sed -r -n 's|^Exec[a-zA-Z]*=[@+!-]*([^ ]+).*|\1|gp' $initdir/{$systemdsystemunitdir,$systemduserunitdir}/*.service \
 552          | sort -u | while read i; do
 553          # some {rc,halt}.local scripts and programs are okay to not exist, the rest should
 554          # also, plymouth is pulled in by rescue.service, but even there the exit code
 555          # is ignored; as it's not present on some distros, don't fail if it doesn't exist
 556          inst $i || [ "${i%.local}" != "$i" ] || [ "${i%systemd-update-done}" != "$i" ] || [ "/bin/plymouth" == "$i" ]
 557      done
 558     )
 559 }
 560
 561 generate_module_dependencies() {
 562     if [[ -d $initdir/lib/modules/$KERNEL_VER ]] && \
 563         ! depmod -a -b "$initdir" $KERNEL_VER; then
 564             dfatal "\"depmod -a $KERNEL_VER\" failed."
 565             exit 1
 566     fi
 567 }
 568
 569 install_depmod_files() {
 570     inst /lib/modules/$KERNEL_VER/modules.order
 571     inst /lib/modules/$KERNEL_VER/modules.builtin
 572 }
 573
 574 install_plymouth() {
 575     # install plymouth, if found... else remove plymouth service files
 576     # if [ -x /usr/libexec/plymouth/plymouth-populate-initrd ]; then
 577     #     PLYMOUTH_POPULATE_SOURCE_FUNCTIONS="$TEST_BASE_DIR/test-functions" \
 578     #         /usr/libexec/plymouth/plymouth-populate-initrd -t $initdir
 579     #         dracut_install plymouth plymouthd
 580     # else
 581         rm -f $initdir/{usr/lib,etc}/systemd/system/plymouth* $initdir/{usr/lib,etc}/systemd/system/*/plymouth*
 582     # fi
 583 }
 584
 585 install_ld_so_conf() {
 586     cp -a /etc/ld.so.conf* $initdir/etc
 587     ldconfig -r "$initdir"
 588 }
 589
 590 install_config_files() {
 591     inst /etc/sysconfig/init || true
 592     inst /etc/passwd
 593     inst /etc/shadow
 594     inst /etc/login.defs
 595     inst /etc/group
 596     inst /etc/shells
 597     inst /etc/nsswitch.conf
 598     inst /etc/pam.conf || true
 599     inst /etc/securetty || true
 600     inst /etc/os-release
 601     inst /etc/localtime
 602     # we want an empty environment
 603     > $initdir/etc/environment
 604     > $initdir/etc/machine-id
 605     # set the hostname
 606     echo systemd-testsuite > $initdir/etc/hostname
 607     # fstab
 608     if [[ "$LOOKS_LIKE_SUSE" ]]; then
 609        ROOTMOUNT="/dev/sda1           /       ${FSTYPE}    rw 0 1"
 610     else
 611        ROOTMOUNT="LABEL=systemd           /       ${FSTYPE}    rw 0 1"
 612     fi
 613
 614     cat >$initdir/etc/fstab <<EOF
 615 $ROOTMOUNT
 616 EOF
 617 }
 618
 619 install_basic_tools() {
 620     [[ $BASICTOOLS ]] && dracut_install $BASICTOOLS
 621     dracut_install -o sushell
 622     # in Debian ldconfig is just a shell script wrapper around ldconfig.real
 623     dracut_install -o ldconfig.real
 624 }
 625
 626 install_debug_tools() {
 627     [[ $DEBUGTOOLS ]] && dracut_install $DEBUGTOOLS
 628 }
 629
 630 install_libnss() {
 631     # install libnss_files for login
 632     NSS_LIBS=$(LD_DEBUG=files getent passwd 2>&1 >/dev/null |sed -n '/calling init: .*libnss_/ {s!^.* /!/!; p}')
 633     dracut_install $NSS_LIBS
 634 }
 635
 636 install_dbus() {
 637     inst $ROOTLIBDIR/system/dbus.socket
 638
 639     # Fedora rawhide replaced dbus.service with dbus-daemon.service
 640     if [ -f $ROOTLIBDIR/system/dbus-daemon.service ]; then
 641         inst $ROOTLIBDIR/system/dbus-daemon.service
 642         # Alias symlink
 643         inst_symlink /etc/systemd/system/dbus.service
 644     else
 645         inst $ROOTLIBDIR/system/dbus.service
 646     fi
 647
 648     find \
 649         /etc/dbus-1 /usr/share/dbus-1 -xtype f \
 650         | while read file; do
 651         inst $file
 652     done
 653 }
 654
 655 install_pam() {
 656     (
 657     if [[ "$LOOKS_LIKE_DEBIAN" ]] && type -p dpkg-architecture &>/dev/null; then
 658         find "/lib/$(dpkg-architecture -qDEB_HOST_MULTIARCH)/security" -xtype f
 659     else
 660         find /lib*/security -xtype f
 661     fi
 662     find /etc/pam.d /etc/security -xtype f
 663     ) | while read file; do
 664         inst $file
 665     done
 666
 667     # pam_unix depends on unix_chkpwd.
 668     # see http://www.linux-pam.org/Linux-PAM-html/sag-pam_unix.html
 669     dracut_install -o unix_chkpwd
 670
 671     [[ "$LOOKS_LIKE_DEBIAN" ]] &&
 672         cp /etc/pam.d/systemd-user $initdir/etc/pam.d/
 673
 674     # set empty root password for easy debugging
 675     sed -i 's/^root:x:/root::/' $initdir/etc/passwd
 676 }
 677
 678 install_keymaps() {
 679     # The first three paths may be deprecated.
 680     # It seems now the last two paths are used by many distributions.
 681     for i in \
 682         /usr/lib/kbd/keymaps/include/* \
 683         /usr/lib/kbd/keymaps/i386/include/* \
 684         /usr/lib/kbd/keymaps/i386/qwerty/us.* \
 685         /usr/lib/kbd/keymaps/legacy/include/* \
 686         /usr/lib/kbd/keymaps/legacy/i386/qwerty/us.*; do
 687             [[ -f $i ]] || continue
 688             inst $i
 689     done
 690
 691     # When it takes any argument, then install more keymaps.
 692     if [[ -n $1 ]]; then
 693         for i in \
 694         /usr/lib/kbd/keymaps/i386/*/* \
 695         /usr/lib/kbd/keymaps/legacy/i386/*/*; do
 696             [[ -f $i ]] || continue
 697             inst $i
 698         done
 699     fi
 700 }
 701
 702 install_zoneinfo() {
 703     for i in /usr/share/zoneinfo/{,*/,*/*/}*; do
 704         [[ -f $i ]] || continue
 705         inst $i
 706     done
 707 }
 708
 709 install_fonts() {
 710     for i in \
 711         /usr/lib/kbd/consolefonts/eurlatgr* \
 712         /usr/lib/kbd/consolefonts/latarcyrheb-sun16*; do
 713             [[ -f $i ]] || continue
 714             inst $i
 715     done
 716 }
 717
 718 install_terminfo() {
 719     for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
 720         [ -f ${_terminfodir}/l/linux ] && break
 721     done
 722     dracut_install -o ${_terminfodir}/l/linux
 723 }
 724
 725 setup_testsuite() {
 726     cp $TEST_BASE_DIR/testsuite.target $initdir/etc/systemd/system/
 727     cp $TEST_BASE_DIR/end.service $initdir/etc/systemd/system/
 728
 729     mkdir -p $initdir/etc/systemd/system/testsuite.target.wants
 730     ln -fs $TEST_BASE_DIR/testsuite.service $initdir/etc/systemd/system/testsuite.target.wants/testsuite.service
 731     ln -fs $TEST_BASE_DIR/end.service $initdir/etc/systemd/system/testsuite.target.wants/end.service
 732
 733     # make the testsuite the default target
 734     ln -fs testsuite.target $initdir/etc/systemd/system/default.target
 735 }
 736
 737 setup_nspawn_root() {
 738     rm -fr $TESTDIR/nspawn-root
 739     ddebug "cp -ar $initdir $TESTDIR/nspawn-root"
 740     cp -ar $initdir $TESTDIR/nspawn-root
 741     # we don't mount in the nspawn root
 742     rm -f $TESTDIR/nspawn-root/etc/fstab
 743     if [[ "$RUN_IN_UNPRIVILEGED_CONTAINER" = "yes" ]]; then
 744         cp -ar $TESTDIR/nspawn-root $TESTDIR/unprivileged-nspawn-root
 745     fi
 746 }
 747
 748 setup_basic_dirs() {
 749     mkdir -p $initdir/run
 750     mkdir -p $initdir/etc/systemd/system
 751     mkdir -p $initdir/var/log/journal
 752
 753     for d in usr/bin usr/sbin bin etc lib "$libdir" sbin tmp usr var var/log dev proc sys sysroot root run run/lock run/initramfs; do
 754         if [ -L "/$d" ]; then
 755             inst_symlink "/$d"
 756         else
 757             inst_dir "/$d"
 758         fi
 759     done
 760
 761     ln -sfn /run "$initdir/var/run"
 762     ln -sfn /run/lock "$initdir/var/lock"
 763 }
 764
 765 inst_libs() {
 766     local _bin=$1
 767     local _so_regex='([^ ]*/lib[^/]*/[^ ]*\.so[^ ]*)'
 768     local _file _line
 769
 770     LC_ALL=C ldd "$_bin" 2>/dev/null | while read _line; do
 771         [[ $_line = 'not a dynamic executable' ]] && break
 772
 773         if [[ $_line =~ $_so_regex ]]; then
 774             _file=${BASH_REMATCH[1]}
 775             [[ -e ${initdir}/$_file ]] && continue
 776             inst_library "$_file"
 777             continue
 778         fi
 779
 780         if [[ $_line =~ not\ found ]]; then
 781             dfatal "Missing a shared library required by $_bin."
 782             dfatal "Run \"ldd $_bin\" to find out what it is."
 783             dfatal "$_line"
 784             dfatal "dracut cannot create an initrd."
 785             exit 1
 786         fi
 787     done
 788 }
 789
 790 import_testdir() {
 791     [[ -e $STATEFILE ]] && . $STATEFILE
 792     if [[ -z "$TESTDIR" ]] || [[ ! -d "$TESTDIR" ]]; then
 793         TESTDIR=$(mktemp --tmpdir=/var/tmp -d -t systemd-test.XXXXXX)
 794         echo "TESTDIR=\"$TESTDIR\"" > $STATEFILE
 795         export TESTDIR
 796     fi
 797 }
 798
 799 import_initdir() {
 800     initdir=$TESTDIR/root
 801     export initdir
 802 }
 803
 804 ## @brief Converts numeric logging level to the first letter of level name.
 805 #
 806 # @param lvl Numeric logging level in range from 1 to 6.
 807 # @retval 1 if @a lvl is out of range.
 808 # @retval 0 if @a lvl is correct.
 809 # @result Echoes first letter of level name.
 810 _lvl2char() {
 811     case "$1" in
 812         1) echo F;;
 813         2) echo E;;
 814         3) echo W;;
 815         4) echo I;;
 816         5) echo D;;
 817         6) echo T;;
 818         *) return 1;;
 819     esac
 820 }
 821
 822 ## @brief Internal helper function for _do_dlog()
 823 #
 824 # @param lvl Numeric logging level.
 825 # @param msg Message.
 826 # @retval 0 It's always returned, even if logging failed.
 827 #
 828 # @note This function is not supposed to be called manually. Please use
 829 # dtrace(), ddebug(), or others instead which wrap this one.
 830 #
 831 # This function calls _do_dlog() either with parameter msg, or if
 832 # none is given, it will read standard input and will use every line as
 833 # a message.
 834 #
 835 # This enables:
 836 # dwarn "This is a warning"
 837 # echo "This is a warning" | dwarn
 838 LOG_LEVEL=${LOG_LEVEL:-4}
 839
 840 dlog() {
 841     [ -z "$LOG_LEVEL" ] && return 0
 842     [ $1 -le $LOG_LEVEL ] || return 0
 843     local lvl="$1"; shift
 844     local lvlc=$(_lvl2char "$lvl") || return 0
 845
 846     if [ $# -ge 1 ]; then
 847         echo "$lvlc: $*"
 848     else
 849         while read line; do
 850             echo "$lvlc: " "$line"
 851         done
 852     fi
 853 }
 854
 855 ## @brief Logs message at TRACE level (6)
 856 #
 857 # @param msg Message.
 858 # @retval 0 It's always returned, even if logging failed.
 859 dtrace() {
 860     set +x
 861     dlog 6 "$@"
 862     [ -n "$debug" ] && set -x || :
 863 }
 864
 865 ## @brief Logs message at DEBUG level (5)
 866 #
 867 # @param msg Message.
 868 # @retval 0 It's always returned, even if logging failed.
 869 ddebug() {
 870 #    set +x
 871     dlog 5 "$@"
 872 #    [ -n "$debug" ] && set -x || :
 873 }
 874
 875 ## @brief Logs message at INFO level (4)
 876 #
 877 # @param msg Message.
 878 # @retval 0 It's always returned, even if logging failed.
 879 dinfo() {
 880     set +x
 881     dlog 4 "$@"
 882     [ -n "$debug" ] && set -x || :
 883 }
 884
 885 ## @brief Logs message at WARN level (3)
 886 #
 887 # @param msg Message.
 888 # @retval 0 It's always returned, even if logging failed.
 889 dwarn() {
 890     set +x
 891     dlog 3 "$@"
 892     [ -n "$debug" ] && set -x || :
 893 }
 894
 895 ## @brief Logs message at ERROR level (2)
 896 #
 897 # @param msg Message.
 898 # @retval 0 It's always returned, even if logging failed.
 899 derror() {
 900 #    set +x
 901     dlog 2 "$@"
 902 #    [ -n "$debug" ] && set -x || :
 903 }
 904
 905 ## @brief Logs message at FATAL level (1)
 906 #
 907 # @param msg Message.
 908 # @retval 0 It's always returned, even if logging failed.
 909 dfatal() {
 910     set +x
 911     dlog 1 "$@"
 912     [ -n "$debug" ] && set -x || :
 913 }
 914
 915
 916 # Generic substring function.  If $2 is in $1, return 0.
 917 strstr() { [ "${1#*$2*}" != "$1" ]; }
 918
 919 # normalize_path <path>
 920 # Prints the normalized path, where it removes any duplicated
 921 # and trailing slashes.
 922 # Example:
 923 # $ normalize_path ///test/test//
 924 # /test/test
 925 normalize_path() {
 926     shopt -q -s extglob
 927     set -- "${1//+(\/)//}"
 928     shopt -q -u extglob
 929     echo "${1%/}"
 930 }
 931
 932 # convert_abs_rel <from> <to>
 933 # Prints the relative path, when creating a symlink to <to> from <from>.
 934 # Example:
 935 # $ convert_abs_rel /usr/bin/test /bin/test-2
 936 # ../../bin/test-2
 937 # $ ln -s $(convert_abs_rel /usr/bin/test /bin/test-2) /usr/bin/test
 938 convert_abs_rel() {
 939     local __current __absolute __abssize __cursize __newpath
 940     local -i __i __level
 941
 942     set -- "$(normalize_path "$1")" "$(normalize_path "$2")"
 943
 944     # corner case #1 - self looping link
 945     [[ "$1" == "$2" ]] && { echo "${1##*/}"; return; }
 946
 947     # corner case #2 - own dir link
 948     [[ "${1%/*}" == "$2" ]] && { echo "."; return; }
 949
 950     IFS="/" __current=($1)
 951     IFS="/" __absolute=($2)
 952
 953     __abssize=${#__absolute[@]}
 954     __cursize=${#__current[@]}
 955
 956     while [[ ${__absolute[__level]} == ${__current[__level]} ]]
 957     do
 958         (( __level++ ))
 959         if (( __level > __abssize || __level > __cursize ))
 960         then
 961             break
 962         fi
 963     done
 964
 965     for ((__i = __level; __i < __cursize-1; __i++))
 966     do
 967         if ((__i > __level))
 968         then
 969             __newpath=$__newpath"/"
 970         fi
 971         __newpath=$__newpath".."
 972     done
 973
 974     for ((__i = __level; __i < __abssize; __i++))
 975     do
 976         if [[ -n $__newpath ]]
 977         then
 978             __newpath=$__newpath"/"
 979         fi
 980         __newpath=$__newpath${__absolute[__i]}
 981     done
 982
 983     echo "$__newpath"
 984 }
 985
 986
 987 # Install a directory, keeping symlinks as on the original system.
 988 # Example: if /lib points to /lib64 on the host, "inst_dir /lib/file"
 989 # will create ${initdir}/lib64, ${initdir}/lib64/file,
 990 # and a symlink ${initdir}/lib -> lib64.
 991 inst_dir() {
 992     [[ -e ${initdir}/"$1" ]] && return 0  # already there
 993
 994     local _dir="$1" _part="${1%/*}" _file
 995     while [[ "$_part" != "${_part%/*}" ]] && ! [[ -e "${initdir}/${_part}" ]]; do
 996         _dir="$_part $_dir"
 997         _part=${_part%/*}
 998     done
 999
1000     # iterate over parent directories
1001     for _file in $_dir; do
1002         [[ -e "${initdir}/$_file" ]] && continue
1003         if [[ -L $_file ]]; then
1004             inst_symlink "$_file"
1005         else
1006             # create directory
1007             mkdir -m 0755 -p "${initdir}/$_file" || return 1
1008             [[ -e "$_file" ]] && chmod --reference="$_file" "${initdir}/$_file"
1009             chmod u+w "${initdir}/$_file"
1010         fi
1011     done
1012 }
1013
1014 # $1 = file to copy to ramdisk
1015 # $2 (optional) Name for the file on the ramdisk
1016 # Location of the image dir is assumed to be $initdir
1017 # We never overwrite the target if it exists.
1018 inst_simple() {
1019     [[ -f "$1" ]] || return 1
1020     strstr "$1" "/" || return 1
1021
1022     local _src=$1 target="${2:-$1}"
1023     if ! [[ -d ${initdir}/$target ]]; then
1024         [[ -e ${initdir}/$target ]] && return 0
1025         [[ -L ${initdir}/$target ]] && return 0
1026         [[ -d "${initdir}/${target%/*}" ]] || inst_dir "${target%/*}"
1027     fi
1028     # install checksum files also
1029     if [[ -e "${_src%/*}/.${_src##*/}.hmac" ]]; then
1030         inst "${_src%/*}/.${_src##*/}.hmac" "${target%/*}/.${target##*/}.hmac"
1031     fi
1032     ddebug "Installing $_src"
1033     cp --sparse=always -pfL "$_src" "${initdir}/$target"
1034 }
1035
1036 # find symlinks linked to given library file
1037 # $1 = library file
1038 # Function searches for symlinks by stripping version numbers appended to
1039 # library filename, checks if it points to the same target and finally
1040 # prints the list of symlinks to stdout.
1041 #
1042 # Example:
1043 # rev_lib_symlinks libfoo.so.8.1
1044 # output: libfoo.so.8 libfoo.so
1045 # (Only if libfoo.so.8 and libfoo.so exists on host system.)
1046 rev_lib_symlinks() {
1047     [[ ! $1 ]] && return 0
1048
1049     local fn="$1" orig="$(readlink -f "$1")" links=''
1050
1051     [[ ${fn} =~ .*\.so\..* ]] || return 1
1052
1053     until [[ ${fn##*.} == so ]]; do
1054         fn="${fn%.*}"
1055         [[ -L ${fn} && $(readlink -f "${fn}") == ${orig} ]] && links+=" ${fn}"
1056     done
1057
1058     echo "${links}"
1059 }
1060
1061 # Same as above, but specialized to handle dynamic libraries.
1062 # It handles making symlinks according to how the original library
1063 # is referenced.
1064 inst_library() {
1065     local _src="$1" _dest=${2:-$1} _lib _reallib _symlink
1066     strstr "$1" "/" || return 1
1067     [[ -e $initdir/$_dest ]] && return 0
1068     if [[ -L $_src ]]; then
1069         # install checksum files also
1070         if [[ -e "${_src%/*}/.${_src##*/}.hmac" ]]; then
1071             inst "${_src%/*}/.${_src##*/}.hmac" "${_dest%/*}/.${_dest##*/}.hmac"
1072         fi
1073         _reallib=$(readlink -f "$_src")
1074         inst_simple "$_reallib" "$_reallib"
1075         inst_dir "${_dest%/*}"
1076         [[ -d "${_dest%/*}" ]] && _dest=$(readlink -f "${_dest%/*}")/${_dest##*/}
1077         ln -sfn $(convert_abs_rel "${_dest}" "${_reallib}") "${initdir}/${_dest}"
1078     else
1079         inst_simple "$_src" "$_dest"
1080     fi
1081
1082     # Create additional symlinks.  See rev_symlinks description.
1083     for _symlink in $(rev_lib_symlinks $_src) $(rev_lib_symlinks $_reallib); do
1084         [[ -e $initdir/$_symlink ]] || {
1085             ddebug "Creating extra symlink: $_symlink"
1086             inst_symlink $_symlink
1087         }
1088     done
1089 }
1090
1091 # find a binary.  If we were not passed the full path directly,
1092 # search in the usual places to find the binary.
1093 find_binary() {
1094     if [[ -z ${1##/*} ]]; then
1095         if [[ -x $1 ]] || { strstr "$1" ".so" && ldd $1 &>/dev/null; };  then
1096             echo $1
1097             return 0
1098         fi
1099     fi
1100
1101     type -P $1
1102 }
1103
1104 # Same as above, but specialized to install binary executables.
1105 # Install binary executable, and all shared library dependencies, if any.
1106 inst_binary() {
1107     local _bin _target
1108     _bin=$(find_binary "$1") || return 1
1109     _target=${2:-$_bin}
1110     [[ -e $initdir/$_target ]] && return 0
1111     [[ -L $_bin ]] && inst_symlink $_bin $_target && return 0
1112     local _file _line
1113     local _so_regex='([^ ]*/lib[^/]*/[^ ]*\.so[^ ]*)'
1114     # I love bash!
1115     LC_ALL=C ldd "$_bin" 2>/dev/null | while read _line; do
1116         [[ $_line = 'not a dynamic executable' ]] && break
1117
1118         if [[ $_line =~ $_so_regex ]]; then
1119             _file=${BASH_REMATCH[1]}
1120             [[ -e ${initdir}/$_file ]] && continue
1121             inst_library "$_file"
1122             continue
1123         fi
1124
1125         if [[ $_line =~ not\ found ]]; then
1126             dfatal "Missing a shared library required by $_bin."
1127             dfatal "Run \"ldd $_bin\" to find out what it is."
1128             dfatal "$_line"
1129             dfatal "dracut cannot create an initrd."
1130             exit 1
1131         fi
1132     done
1133     inst_simple "$_bin" "$_target"
1134 }
1135
1136 # same as above, except for shell scripts.
1137 # If your shell script does not start with shebang, it is not a shell script.
1138 inst_script() {
1139     local _bin
1140     _bin=$(find_binary "$1") || return 1
1141     shift
1142     local _line _shebang_regex
1143     read -r -n 80 _line <"$_bin"
1144     # If debug is set, clean unprintable chars to prevent messing up the term
1145     [[ $debug ]] && _line=$(echo -n "$_line" | tr -c -d '[:print:][:space:]')
1146     _shebang_regex='(#! *)(/[^ ]+).*'
1147     [[ $_line =~ $_shebang_regex ]] || return 1
1148     inst "${BASH_REMATCH[2]}" && inst_simple "$_bin" "$@"
1149 }
1150
1151 # same as above, but specialized for symlinks
1152 inst_symlink() {
1153     local _src=$1 _target=${2:-$1} _realsrc
1154     strstr "$1" "/" || return 1
1155     [[ -L $1 ]] || return 1
1156     [[ -L $initdir/$_target ]] && return 0
1157     _realsrc=$(readlink -f "$_src")
1158     if ! [[ -e $initdir/$_realsrc ]]; then
1159         if [[ -d $_realsrc ]]; then
1160             inst_dir "$_realsrc"
1161         else
1162             inst "$_realsrc"
1163         fi
1164     fi
1165     [[ ! -e $initdir/${_target%/*} ]] && inst_dir "${_target%/*}"
1166     [[ -d ${_target%/*} ]] && _target=$(readlink -f ${_target%/*})/${_target##*/}
1167     ln -sfn $(convert_abs_rel "${_target}" "${_realsrc}") "$initdir/$_target"
1168 }
1169
1170 # attempt to install any programs specified in a udev rule
1171 inst_rule_programs() {
1172     local _prog _bin
1173
1174     if grep -qE 'PROGRAM==?"[^ "]+' "$1"; then
1175         for _prog in $(grep -E 'PROGRAM==?"[^ "]+' "$1" | sed -r 's/.*PROGRAM==?"([^ "]+).*/\1/'); do
1176             if [ -x /lib/udev/$_prog ]; then
1177                 _bin=/lib/udev/$_prog
1178             else
1179                 _bin=$(find_binary "$_prog") || {
1180                     dinfo "Skipping program $_prog using in udev rule $(basename $1) as it cannot be found"
1181                     continue;
1182                 }
1183             fi
1184
1185             #dinfo "Installing $_bin due to it's use in the udev rule $(basename $1)"
1186             dracut_install "$_bin"
1187         done
1188     fi
1189 }
1190
1191 # udev rules always get installed in the same place, so
1192 # create a function to install them to make life simpler.
1193 inst_rules() {
1194     local _target=/etc/udev/rules.d _rule _found
1195
1196     inst_dir "/lib/udev/rules.d"
1197     inst_dir "$_target"
1198     for _rule in "$@"; do
1199         if [ "${rule#/}" = "$rule" ]; then
1200             for r in /lib/udev/rules.d /etc/udev/rules.d; do
1201                 if [[ -f $r/$_rule ]]; then
1202                     _found="$r/$_rule"
1203                     inst_simple "$_found"
1204                     inst_rule_programs "$_found"
1205                 fi
1206             done
1207         fi
1208         for r in '' ./ $dracutbasedir/rules.d/; do
1209             if [[ -f ${r}$_rule ]]; then
1210                 _found="${r}$_rule"
1211                 inst_simple "$_found" "$_target/${_found##*/}"
1212                 inst_rule_programs "$_found"
1213             fi
1214         done
1215         [[ $_found ]] || dinfo "Skipping udev rule: $_rule"
1216         _found=
1217     done
1218 }
1219
1220 # general purpose installation function
1221 # Same args as above.
1222 inst() {
1223     local _x
1224
1225     case $# in
1226         1) ;;
1227         2) [[ ! $initdir && -d $2 ]] && export initdir=$2
1228             [[ $initdir = $2 ]] && set $1;;
1229         3) [[ -z $initdir ]] && export initdir=$2
1230             set $1 $3;;
1231         *) dfatal "inst only takes 1 or 2 or 3 arguments"
1232             exit 1;;
1233     esac
1234     for _x in inst_symlink inst_script inst_binary inst_simple; do
1235         $_x "$@" && return 0
1236     done
1237     return 1
1238 }
1239
1240 # install any of listed files
1241 #
1242 # If first argument is '-d' and second some destination path, first accessible
1243 # source is installed into this path, otherwise it will installed in the same
1244 # path as source.  If none of listed files was installed, function return 1.
1245 # On first successful installation it returns with 0 status.
1246 #
1247 # Example:
1248 #
1249 # inst_any -d /bin/foo /bin/bar /bin/baz
1250 #
1251 # Lets assume that /bin/baz exists, so it will be installed as /bin/foo in
1252 # initramfs.
1253 inst_any() {
1254     local to f
1255
1256     [[ $1 = '-d' ]] && to="$2" && shift 2
1257
1258     for f in "$@"; do
1259         if [[ -e $f ]]; then
1260             [[ $to ]] && inst "$f" "$to" && return 0
1261             inst "$f" && return 0
1262         fi
1263     done
1264
1265     return 1
1266 }
1267
1268 # dracut_install [-o ] <file> [<file> ... ]
1269 # Install <file> to the initramfs image
1270 # -o optionally install the <file> and don't fail, if it is not there
1271 dracut_install() {
1272     local _optional=no
1273     if [[ $1 = '-o' ]]; then
1274         _optional=yes
1275         shift
1276     fi
1277     while (($# > 0)); do
1278         if ! inst "$1" ; then
1279             if [[ $_optional = yes ]]; then
1280                 dinfo "Skipping program $1 as it cannot be found and is" \
1281                     "flagged to be optional"
1282             else
1283                 dfatal "Failed to install $1"
1284                 exit 1
1285             fi
1286         fi
1287         shift
1288     done
1289 }
1290
1291 # Install a single kernel module along with any firmware it may require.
1292 # $1 = full path to kernel module to install
1293 install_kmod_with_fw() {
1294     # no need to go further if the module is already installed
1295
1296     [[ -e "${initdir}/lib/modules/$KERNEL_VER/${1##*/lib/modules/$KERNEL_VER/}" ]] \
1297         && return 0
1298
1299     [[ -e "$initdir/.kernelmodseen/${1##*/}" ]] && return 0
1300
1301     if [[ $omit_drivers ]]; then
1302         local _kmod=${1##*/}
1303         _kmod=${_kmod%.ko}
1304         _kmod=${_kmod/-/_}
1305         if [[ "$_kmod" =~ $omit_drivers ]]; then
1306             dinfo "Omitting driver $_kmod"
1307             return 1
1308         fi
1309         if [[ "${1##*/lib/modules/$KERNEL_VER/}" =~ $omit_drivers ]]; then
1310             dinfo "Omitting driver $_kmod"
1311             return 1
1312         fi
1313     fi
1314
1315     [ -d "$initdir/.kernelmodseen" ] && \
1316         > "$initdir/.kernelmodseen/${1##*/}"
1317
1318     inst_simple "$1" "/lib/modules/$KERNEL_VER/${1##*/lib/modules/$KERNEL_VER/}" \
1319         || return $?
1320
1321     local _modname=${1##*/} _fwdir _found _fw
1322     _modname=${_modname%.ko*}
1323     for _fw in $(modinfo -k $KERNEL_VER -F firmware $1 2>/dev/null); do
1324         _found=''
1325         for _fwdir in $fw_dir; do
1326             if [[ -d $_fwdir && -f $_fwdir/$_fw ]]; then
1327                 inst_simple "$_fwdir/$_fw" "/lib/firmware/$_fw"
1328                 _found=yes
1329             fi
1330         done
1331         if [[ $_found != yes ]]; then
1332             if ! grep -qe "\<${_modname//-/_}\>" /proc/modules; then
1333                 dinfo "Possible missing firmware \"${_fw}\" for kernel module" \
1334                     "\"${_modname}.ko\""
1335             else
1336                 dwarn "Possible missing firmware \"${_fw}\" for kernel module" \
1337                     "\"${_modname}.ko\""
1338             fi
1339         fi
1340     done
1341     return 0
1342 }
1343
1344 # Do something with all the dependencies of a kernel module.
1345 # Note that kernel modules depend on themselves using the technique we use
1346 # $1 = function to call for each dependency we find
1347 #      It will be passed the full path to the found kernel module
1348 # $2 = module to get dependencies for
1349 # rest of args = arguments to modprobe
1350 # _fderr specifies FD passed from surrounding scope
1351 for_each_kmod_dep() {
1352     local _func=$1 _kmod=$2 _cmd _modpath _options _found=0
1353     shift 2
1354     modprobe "$@" --ignore-install --show-depends $_kmod 2>&${_fderr} | (
1355         while read _cmd _modpath _options; do
1356             [[ $_cmd = insmod ]] || continue
1357             $_func ${_modpath} || exit $?
1358             _found=1
1359         done
1360         [[ $_found -eq 0 ]] && exit 1
1361         exit 0
1362     )
1363 }
1364
1365 # filter kernel modules to install certain modules that meet specific
1366 # requirements.
1367 # $1 = search only in subdirectory of /kernel/$1
1368 # $2 = function to call with module name to filter.
1369 #      This function will be passed the full path to the module to test.
1370 # The behavior of this function can vary depending on whether $hostonly is set.
1371 # If it is, we will only look at modules that are already in memory.
1372 # If it is not, we will look at all kernel modules
1373 # This function returns the full filenames of modules that match $1
1374 filter_kernel_modules_by_path () (
1375     local _modname _filtercmd
1376     if ! [[ $hostonly ]]; then
1377         _filtercmd='find "$KERNEL_MODS/kernel/$1" "$KERNEL_MODS/extra"'
1378         _filtercmd+=' "$KERNEL_MODS/weak-updates" -name "*.ko" -o -name "*.ko.gz"'
1379         _filtercmd+=' -o -name "*.ko.xz"'
1380         _filtercmd+=' 2>/dev/null'
1381     else
1382         _filtercmd='cut -d " " -f 1 </proc/modules|xargs modinfo -F filename '
1383         _filtercmd+='-k $KERNEL_VER 2>/dev/null'
1384     fi
1385     for _modname in $(eval $_filtercmd); do
1386         case $_modname in
1387             *.ko) "$2" "$_modname" && echo "$_modname";;
1388             *.ko.gz) gzip -dc "$_modname" > $initdir/$$.ko
1389                 $2 $initdir/$$.ko && echo "$_modname"
1390                 rm -f $initdir/$$.ko
1391                 ;;
1392             *.ko.xz) xz -dc "$_modname" > $initdir/$$.ko
1393                 $2 $initdir/$$.ko && echo "$_modname"
1394                 rm -f $initdir/$$.ko
1395                 ;;
1396         esac
1397     done
1398 )
1399 find_kernel_modules_by_path () (
1400     if ! [[ $hostonly ]]; then
1401         find "$KERNEL_MODS/kernel/$1" "$KERNEL_MODS/extra" "$KERNEL_MODS/weak-updates" \
1402           -name "*.ko" -o -name "*.ko.gz" -o -name "*.ko.xz" 2>/dev/null
1403     else
1404         cut -d " " -f 1 </proc/modules \
1405         | xargs modinfo -F filename -k $KERNEL_VER 2>/dev/null
1406     fi
1407 )
1408
1409 filter_kernel_modules () {
1410     filter_kernel_modules_by_path  drivers  "$1"
1411 }
1412
1413 find_kernel_modules () {
1414     find_kernel_modules_by_path  drivers
1415 }
1416
1417 # instmods [-c] <kernel module> [<kernel module> ... ]
1418 # instmods [-c] <kernel subsystem>
1419 # install kernel modules along with all their dependencies.
1420 # <kernel subsystem> can be e.g. "=block" or "=drivers/usb/storage"
1421 instmods() {
1422     [[ $no_kernel = yes ]] && return
1423     # called [sub]functions inherit _fderr
1424     local _fderr=9
1425     local _check=no
1426     if [[ $1 = '-c' ]]; then
1427         _check=yes
1428         shift
1429     fi
1430
1431     function inst1mod() {
1432         local _ret=0 _mod="$1"
1433         case $_mod in
1434             =*)
1435                 if [ -f $KERNEL_MODS/modules.${_mod#=} ]; then
1436                     ( [[ "$_mpargs" ]] && echo $_mpargs
1437                       cat "${KERNEL_MODS}/modules.${_mod#=}" ) \
1438                     | instmods
1439                 else
1440                     ( [[ "$_mpargs" ]] && echo $_mpargs
1441                       find "$KERNEL_MODS" -path "*/${_mod#=}/*" -printf '%f\n' ) \
1442                     | instmods
1443                 fi
1444                 ;;
1445             --*) _mpargs+=" $_mod" ;;
1446             i2o_scsi) return ;; # Do not load this diagnostic-only module
1447             *)
1448                 _mod=${_mod##*/}
1449                 # if we are already installed, skip this module and go on
1450                 # to the next one.
1451                 [[ -f "$initdir/.kernelmodseen/${_mod%.ko}.ko" ]] && return
1452
1453                 if [[ $omit_drivers ]] && [[ "$1" =~ $omit_drivers ]]; then
1454                     dinfo "Omitting driver ${_mod##$KERNEL_MODS}"
1455                     return
1456                 fi
1457                 # If we are building a host-specific initramfs and this
1458                 # module is not already loaded, move on to the next one.
1459                 [[ $hostonly ]] && ! grep -qe "\<${_mod//-/_}\>" /proc/modules \
1460                     && ! echo $add_drivers | grep -qe "\<${_mod}\>" \
1461                     && return
1462
1463                 # We use '-d' option in modprobe only if modules prefix path
1464                 # differs from default '/'.  This allows us to use Dracut with
1465                 # old version of modprobe which doesn't have '-d' option.
1466                 local _moddirname=${KERNEL_MODS%%/lib/modules/*}
1467                 [[ -n ${_moddirname} ]] && _moddirname="-d ${_moddirname}/"
1468
1469                 # ok, load the module, all its dependencies, and any firmware
1470                 # it may require
1471                 for_each_kmod_dep install_kmod_with_fw $_mod \
1472                     --set-version $KERNEL_VER ${_moddirname} $_mpargs
1473                 ((_ret+=$?))
1474                 ;;
1475         esac
1476         return $_ret
1477     }
1478
1479     function instmods_1() {
1480         local _mod _mpargs
1481         if (($# == 0)); then  # filenames from stdin
1482             while read _mod; do
1483                 inst1mod "${_mod%.ko*}" || {
1484                     if [ "$_check" = "yes" ]; then
1485                         dfatal "Failed to install $_mod"
1486                         return 1
1487                     fi
1488                 }
1489             done
1490         fi
1491         while (($# > 0)); do  # filenames as arguments
1492             inst1mod ${1%.ko*} || {
1493                 if [ "$_check" = "yes" ]; then
1494                     dfatal "Failed to install $1"
1495                     return 1
1496                 fi
1497             }
1498             shift
1499         done
1500         return 0
1501     }
1502
1503     local _ret _filter_not_found='FATAL: Module .* not found.'
1504     set -o pipefail
1505     # Capture all stderr from modprobe to _fderr. We could use {var}>...
1506     # redirections, but that would make dracut require bash4 at least.
1507     eval "( instmods_1 \"\$@\" ) ${_fderr}>&1" \
1508     | while read line; do [[ "$line" =~ $_filter_not_found ]] && echo $line || echo $line >&2 ;done | derror
1509     _ret=$?
1510     set +o pipefail
1511     return $_ret
1512 }
1513
1514 # inst_libdir_file [-n <pattern>] <file> [<file>...]
1515 # Install a <file> located on a lib directory to the initramfs image
1516 # -n <pattern> install non-matching files
1517 inst_libdir_file() {
1518     if [[ "$1" == "-n" ]]; then
1519         local _pattern=$1
1520         shift 2
1521         for _dir in $libdirs; do
1522             for _i in "$@"; do
1523                 for _f in "$_dir"/$_i; do
1524                     [[ "$_i" =~ $_pattern ]] || continue
1525                     [[ -e "$_i" ]] && dracut_install "$_i"
1526                 done
1527             done
1528         done
1529     else
1530         for _dir in $libdirs; do
1531             for _i in "$@"; do
1532                 for _f in "$_dir"/$_i; do
1533                     [[ -e "$_f" ]] && dracut_install "$_f"
1534                 done
1535             done
1536         done
1537     fi
1538 }
1539
1540 setup_suse() {
1541     ln -fs ../usr/bin/systemctl $initdir/bin/
1542     ln -fs ../usr/lib/systemd $initdir/lib/
1543     inst_simple "/usr/lib/systemd/system/haveged.service"
1544 }
1545
1546 # can be overridden in specific test
1547 test_cleanup() {
1548     umount $TESTDIR/root 2>/dev/null || true
1549     [[ $LOOPDEV ]] && losetup -d $LOOPDEV || true
1550     return 0
1551 }
1552
1553 test_run() {
1554     if [ -z "$TEST_NO_QEMU" ]; then
1555         if run_qemu; then
1556             check_result_qemu || return 1
1557         else
1558             dwarn "can't run QEMU, skipping"
1559         fi
1560     fi
1561     if [ -z "$TEST_NO_NSPAWN" ]; then
1562         if run_nspawn "nspawn-root"; then
1563             check_result_nspawn "nspawn-root" || return 1
1564         else
1565             dwarn "can't run systemd-nspawn, skipping"
1566         fi
1567
1568         if [[ "$RUN_IN_UNPRIVILEGED_CONTAINER" = "yes" ]]; then
1569             if NSPAWN_ARGUMENTS="-U --private-network $NSPAWN_ARGUMENTS" run_nspawn "unprivileged-nspawn-root"; then
1570                 check_result_nspawn "unprivileged-nspawn-root" || return 1
1571             else
1572                 dwarn "can't run systemd-nspawn, skipping"
1573             fi
1574         fi
1575     fi
1576     return 0
1577 }
1578
1579 do_test() {
1580     if [[ $UID != "0" ]]; then
1581         echo "TEST: $TEST_DESCRIPTION [SKIPPED]: not root" >&2
1582         exit 0
1583     fi
1584
1585 # Detect lib paths
1586     [[ $libdir ]] || for libdir in /lib64 /lib; do
1587         [[ -d $libdir ]] && libdirs+=" $libdir" && break
1588     done
1589
1590     [[ $usrlibdir ]] || for usrlibdir in /usr/lib64 /usr/lib; do
1591         [[ -d $usrlibdir ]] && libdirs+=" $usrlibdir" && break
1592     done
1593
1594     mkdir -p "$STATEDIR"
1595
1596     import_testdir
1597     import_initdir
1598
1599     while (($# > 0)); do
1600         case $1 in
1601             --run)
1602                 echo "TEST RUN: $TEST_DESCRIPTION"
1603                 test_run
1604                 ret=$?
1605                 if (( $ret == 0 )); then
1606                     echo "TEST RUN: $TEST_DESCRIPTION [OK]"
1607                 else
1608                     echo "TEST RUN: $TEST_DESCRIPTION [FAILED]"
1609                 fi
1610                 exit $ret;;
1611             --setup)
1612                 echo "TEST SETUP: $TEST_DESCRIPTION"
1613                 test_setup
1614                 ;;
1615             --clean)
1616                 echo "TEST CLEANUP: $TEST_DESCRIPTION"
1617                 test_cleanup
1618                 rm -fr "$TESTDIR"
1619                 rm -f "$STATEFILE"
1620                 ;;
1621             --all)
1622                 ret=0
1623                 echo -n "TEST: $TEST_DESCRIPTION ";
1624                 (
1625                     test_setup && test_run
1626                     ret=$?
1627                     test_cleanup
1628                     rm -fr "$TESTDIR"
1629                     rm -f "$STATEFILE"
1630                     exit $ret
1631                 ) </dev/null >"$TESTLOG" 2>&1 || ret=$?
1632                 if [ $ret -eq 0 ]; then
1633                     rm "$TESTLOG"
1634                     echo "[OK]"
1635                 else
1636                     echo "[FAILED]"
1637                     echo "see $TESTLOG"
1638                 fi
1639                 exit $ret;;
1640             *) break ;;
1641         esac
1642         shift
1643     done
1644 }