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-rw-r--r--tests/functions.sh1035
1 files changed, 1035 insertions, 0 deletions
diff --git a/tests/functions.sh b/tests/functions.sh
new file mode 100644
index 0000000..da6eac4
--- /dev/null
+++ b/tests/functions.sh
@@ -0,0 +1,1035 @@
+#
+# Copyright (C) 2007 Karel Zak <kzak@redhat.com>
+#
+# This file is part of util-linux.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This file is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+
+
+function ts_abspath {
+ cd $1
+ pwd
+}
+
+function ts_canonicalize {
+ P="$1"
+ C=$(readlink -f $P)
+
+ if [ -n "$C" ]; then
+ echo "$C"
+ else
+ echo "$P"
+ fi
+}
+
+function ts_cd {
+ if [ $# -eq 0 ]; then
+ ts_failed "ul_cd: not enough arguments"
+ fi
+ DEST=$(readlink -f "$1" 2>/dev/null)
+ if [ "x$DEST" = "x" ] || [ ! -d "$DEST" ]; then
+ ts_failed "ul_cd: $1: no such directory"
+ fi
+ cd "$DEST" 2>/dev/null || ts_failed "ul_cd: $1: cannot change directory"
+ if [ "$PWD" != "$DEST" ]; then
+ ts_failed "ul_cd: $PWD is not $DEST"
+ fi
+}
+
+function ts_separator {
+ local header="$1"
+ echo >> $TS_OUTPUT
+ if [ -z "$header" ]; then
+ echo "============================================" >> $TS_OUTPUT
+ else
+ echo "=====$header================================" >> $TS_OUTPUT
+ fi
+}
+
+function ts_report {
+ local desc=
+
+ if [ "$TS_PARSABLE" != "yes" ]; then
+ if [ $TS_NSUBTESTS -ne 0 ] && [ -z "$TS_SUBNAME" ]; then
+ desc=$(printf "%11s...")
+ fi
+ echo "$desc$1"
+ return
+ fi
+
+ if [ -n "$TS_SUBNAME" ]; then
+ desc=$(printf "%s: [%02d] %s" "$TS_DESC" "$TS_NSUBTESTS" "$TS_SUBNAME")
+ else
+ desc=$TS_DESC
+ fi
+ printf "%13s: %-45s ...%s\n" "$TS_COMPONENT" "$desc" "$1"
+}
+
+function ts_check_test_command {
+ case "$1" in
+ */*)
+ # paths
+ if [ ! -x "$1" ]; then
+ ts_skip "${1##*/} not found"
+ fi
+ ;;
+ *)
+ # just command names (e.g. --use-system-commands)
+ local cmd=$1
+ type "$cmd" >/dev/null 2>&1
+ if [ $? -ne 0 ]; then
+ if [ "$TS_NOSKIP_COMMANDS" = "yes" ]; then
+ ts_failed "missing in PATH: $cmd"
+ fi
+ ts_skip "missing in PATH: $cmd"
+ fi
+ ;;
+ esac
+}
+
+function ts_check_prog {
+ local cmd=$1
+ type "$cmd" >/dev/null 2>&1 || ts_skip "missing in PATH: $cmd"
+}
+
+function ts_check_losetup {
+ local tmp
+ ts_check_test_command "$TS_CMD_LOSETUP"
+
+ if [ "$TS_SKIP_LOOPDEVS" = "yes" ]; then
+ ts_skip "loop-device tests disabled"
+ fi
+
+ # assuming that losetup -f works ... to be checked somewhere else
+ tmp=$($TS_CMD_LOSETUP -f 2>/dev/null)
+ if test -b "$tmp"; then
+ return 0
+ fi
+ ts_skip "no loop-device support"
+}
+
+function ts_report_skip {
+ ts_report " SKIPPED ($1)"
+}
+
+function ts_skip {
+ ts_report_skip "$1"
+
+ ts_cleanup_on_exit
+ exit 0
+}
+
+function ts_skip_nonroot {
+ if [ $UID -ne 0 ]; then
+ ts_skip "no root permissions"
+ fi
+}
+
+function ts_failed_subtest {
+ local msg="FAILED"
+ local ret=1
+ if [ "$TS_KNOWN_FAIL" = "yes" ]; then
+ msg="KNOWN FAILED"
+ ret=0
+ fi
+
+ if [ x"$1" == x"" ]; then
+ ts_report " $msg ($TS_NS)"
+ else
+ ts_report " $msg ($1)"
+ fi
+
+ return $ret
+}
+
+function ts_failed {
+ ts_failed_subtest "$1"
+ exit $?
+}
+
+function ts_report_ok {
+ if [ x"$1" == x"" ]; then
+ ts_report " OK"
+ else
+ ts_report " OK ($1)"
+ fi
+}
+
+function ts_ok {
+ ts_report_ok "$1"
+ exit 0
+}
+
+function ts_log {
+ echo "$1" >> $TS_OUTPUT
+ [ "$TS_VERBOSE" == "yes" ] && echo "$1"
+}
+
+function ts_logerr {
+ echo "$1" >> $TS_ERRLOG
+ [ "$TS_VERBOSE" == "yes" ] && echo "$1"
+}
+
+function ts_log_both {
+ echo "$1" >> $TS_OUTPUT
+ echo "$1" >> $TS_ERRLOG
+ [ "$TS_VERBOSE" == "yes" ] && echo "$1"
+}
+
+function ts_has_option {
+ NAME="$1"
+ ALL="$2"
+
+ # user may set options by env for a single test or whole component
+ # e.g. TS_OPT_ipcs_limits2_fake="yes" or TS_OPT_ipcs_fake="yes"
+ local v_test=${TS_TESTNAME//[-.]/_}
+ local v_comp=${TS_COMPONENT//[-.]/_}
+ local v_name=${NAME//[-.]/_}
+ eval local env_opt_test=\$TS_OPT_${v_comp}_${v_test}_${v_name}
+ eval local env_opt_comp=\$TS_OPT_${v_comp}_${v_name}
+ if [ "$env_opt_test" = "yes" \
+ -o "$env_opt_comp" = "yes" -a "$env_opt_test" != "no" ]; then
+ echo "yes"
+ return
+ elif [ "$env_opt_test" = "no" \
+ -o "$env_opt_comp" = "no" -a "$env_opt_test" != "yes" ]; then
+ return
+ fi
+
+ # or just check the global command line options
+ if [[ $ALL =~ ([$' \t\n']|^)--$NAME([$'= \t\n']|$) ]]; then
+ echo yes
+ return
+ fi
+
+ # or the _global_ env, e.g TS_OPT_parsable="yes"
+ eval local env_opt=\$TS_OPT_${v_name}
+ if [ "$env_opt" = "yes" ]; then echo "yes"; fi
+}
+
+function ts_option_argument {
+ NAME="$1"
+ ALL="$2"
+
+ # last option wins!
+ echo "$ALL" | sed -n "s/.*[ \t\n]--$NAME=\([^ \t\n]*\).*/\1/p" | tail -n 1
+}
+
+function ts_init_core_env {
+ TS_SUBNAME=""
+ TS_NS="$TS_COMPONENT/$TS_TESTNAME"
+ TS_OUTPUT="$TS_OUTDIR/$TS_TESTNAME"
+ TS_ERRLOG="$TS_OUTDIR/$TS_TESTNAME.err"
+ TS_VGDUMP="$TS_OUTDIR/$TS_TESTNAME.vgdump"
+ TS_DIFF="$TS_DIFFDIR/$TS_TESTNAME"
+ TS_EXPECTED="$TS_TOPDIR/expected/$TS_NS"
+ TS_EXPECTED_ERR="$TS_TOPDIR/expected/$TS_NS.err"
+ TS_MOUNTPOINT="$TS_OUTDIR/${TS_TESTNAME}-mnt"
+}
+
+function ts_init_core_subtest_env {
+ TS_NS="$TS_COMPONENT/$TS_TESTNAME-$TS_SUBNAME"
+ TS_OUTPUT="$TS_OUTDIR/$TS_TESTNAME-$TS_SUBNAME"
+ TS_ERRLOG="$TS_OUTDIR/$TS_TESTNAME-$TS_SUBNAME.err"
+ TS_VGDUMP="$TS_OUTDIR/$TS_TESTNAME-$TS_SUBNAME.vgdump"
+ TS_DIFF="$TS_DIFFDIR/$TS_TESTNAME-$TS_SUBNAME"
+ TS_EXPECTED="$TS_TOPDIR/expected/$TS_NS"
+ TS_EXPECTED_ERR="$TS_TOPDIR/expected/$TS_NS.err"
+ TS_MOUNTPOINT="$TS_OUTDIR/${TS_TESTNAME}-${TS_SUBNAME}-mnt"
+
+ rm -f $TS_OUTPUT $TS_ERRLOG $TS_VGDUMP
+ [ -d "$TS_OUTDIR" ] || mkdir -p "$TS_OUTDIR"
+
+ touch $TS_OUTPUT $TS_ERRLOG
+ [ -n "$TS_VALGRIND_CMD" ] && touch $TS_VGDUMP
+}
+
+function ts_init_env {
+ local mydir=$(ts_abspath ${0%/*})
+ local tmp
+
+ LANG="POSIX"
+ LANGUAGE="POSIX"
+ LC_ALL="POSIX"
+ CHARSET="UTF-8"
+ ASAN_OPTIONS="detect_leaks=0"
+ UBSAN_OPTIONS="print_stacktrace=1:print_summary=1:halt_on_error=1"
+
+ export LANG LANGUAGE LC_ALL CHARSET ASAN_OPTIONS UBSAN_OPTIONS
+
+ mydir=$(ts_canonicalize "$mydir")
+
+ # automake directories
+ top_srcdir=$(ts_option_argument "srcdir" "$*")
+ top_builddir=$(ts_option_argument "builddir" "$*")
+
+ # where is this script
+ TS_TOPDIR=$(ts_abspath $mydir/../../)
+
+ # default
+ if [ -z "$top_srcdir" ]; then
+ top_srcdir="$TS_TOPDIR/.."
+ fi
+ if [ -z "$top_builddir" ]; then
+ top_builddir="$TS_TOPDIR/.."
+ fi
+
+ top_srcdir=$(ts_abspath $top_srcdir)
+ top_builddir=$(ts_abspath $top_builddir)
+
+ # We use helpser always from build tree
+ ts_helpersdir="${top_builddir}/"
+
+ TS_USE_SYSTEM_COMMANDS=$(ts_has_option "use-system-commands" "$*")
+ if [ "$TS_USE_SYSTEM_COMMANDS" == "yes" ]; then
+ # Don't define anything, just follow current PATH
+ ts_commandsdir=""
+ else
+ # The default is to use commands from build tree
+ ts_commandsdir="${top_builddir}/"
+
+ # some ul commands search other ul commands in $PATH
+ export PATH="$ts_commandsdir:$PATH"
+ fi
+
+ TS_SCRIPT="$mydir/$(basename $0)"
+ TS_SUBDIR=$(dirname $TS_SCRIPT)
+ TS_TESTNAME=$(basename $TS_SCRIPT)
+ TS_COMPONENT=$(basename $TS_SUBDIR)
+ TS_DESC=${TS_DESC:-$TS_TESTNAME}
+
+ TS_NSUBTESTS=0
+ TS_NSUBFAILED=0
+
+ TS_SELF="$TS_SUBDIR"
+
+ TS_OUTDIR="$top_builddir/tests/output/$TS_COMPONENT"
+ TS_DIFFDIR="$top_builddir/tests/diff/$TS_COMPONENT"
+
+ TS_NOLOCKS=$(ts_has_option "nolocks" "$*")
+ TS_LOCKDIR="$top_builddir/tests/output"
+
+ # Don't lock if flock(1) is missing
+ type "flock" >/dev/null 2>&1 || TS_NOLOCKS="yes"
+
+ ts_init_core_env
+
+ TS_NOSKIP_COMMANDS=$(ts_has_option "noskip-commands" "$*")
+ TS_VERBOSE=$(ts_has_option "verbose" "$*")
+ TS_SHOWDIFF=$(ts_has_option "show-diff" "$*")
+ TS_PARALLEL=$(ts_has_option "parallel" "$*")
+ TS_KNOWN_FAIL=$(ts_has_option "known-fail" "$*")
+ TS_SKIP_LOOPDEVS=$(ts_has_option "skip-loopdevs" "$*")
+ TS_PARSABLE=$(ts_has_option "parsable" "$*")
+ [ "$TS_PARSABLE" = "yes" ] || TS_PARSABLE="$TS_PARALLEL"
+
+ tmp=$( ts_has_option "memcheck-valgrind" "$*")
+ if [ "$tmp" == "yes" -a -f /usr/bin/valgrind ]; then
+ TS_VALGRIND_CMD="/usr/bin/valgrind"
+ fi
+ tmp=$( ts_has_option "memcheck-asan" "$*")
+ if [ "$tmp" == "yes" ]; then
+ TS_ENABLE_ASAN="yes"
+ fi
+ tmp=$( ts_has_option "memcheck-ubsan" "$*")
+ if [ "$tmp" == "yes" ]; then
+ TS_ENABLE_UBSAN="yes"
+ fi
+
+ BLKID_FILE="$TS_OUTDIR/${TS_TESTNAME}.blkidtab"
+
+ declare -a TS_SUID_PROGS
+ declare -a TS_SUID_USER
+ declare -a TS_SUID_GROUP
+ declare -a TS_LOOP_DEVS
+ declare -a TS_LOCKFILE_FD
+
+ if [ -f $TS_TOPDIR/commands.sh ]; then
+ . $TS_TOPDIR/commands.sh
+ fi
+
+ export BLKID_FILE
+
+ rm -f $TS_OUTPUT $TS_ERRLOG $TS_VGDUMP
+ [ -d "$TS_OUTDIR" ] || mkdir -p "$TS_OUTDIR"
+
+ touch $TS_OUTPUT $TS_ERRLOG
+ [ -n "$TS_VALGRIND_CMD" ] && touch $TS_VGDUMP
+
+ if [ "$TS_VERBOSE" == "yes" ]; then
+ echo
+ echo " script: $TS_SCRIPT"
+ echo " commands: $ts_commandsdir"
+ echo " helpers: $ts_helpersdir"
+ echo " sub dir: $TS_SUBDIR"
+ echo " top dir: $TS_TOPDIR"
+ echo " self: $TS_SELF"
+ echo " test name: $TS_TESTNAME"
+ echo " test desc: $TS_DESC"
+ echo " component: $TS_COMPONENT"
+ echo " namespace: $TS_NS"
+ echo " verbose: $TS_VERBOSE"
+ echo " output: $TS_OUTPUT"
+ echo " error log: $TS_ERRLOG"
+ echo " valgrind: $TS_VGDUMP"
+ echo " expected: $TS_EXPECTED{.err}"
+ echo " mountpoint: $TS_MOUNTPOINT"
+ echo
+ fi
+}
+
+function ts_init_subtest {
+
+ TS_SUBNAME="$1"
+ ts_init_core_subtest_env
+ TS_NSUBTESTS=$(( $TS_NSUBTESTS + 1 ))
+
+ if [ "$TS_PARSABLE" != "yes" ]; then
+ [ $TS_NSUBTESTS -eq 1 ] && echo
+ printf "%16s: %-27s ..." "" "$TS_SUBNAME"
+ fi
+}
+
+function ts_init {
+ ts_init_env "$*"
+
+ local is_fake=$( ts_has_option "fake" "$*")
+ local is_force=$( ts_has_option "force" "$*")
+
+ if [ "$TS_PARSABLE" != "yes" ]; then
+ printf "%13s: %-30s ..." "$TS_COMPONENT" "$TS_DESC"
+ fi
+
+ [ "$is_fake" == "yes" ] && ts_skip "fake mode"
+ [ "$TS_OPTIONAL" == "yes" -a "$is_force" != "yes" ] && ts_skip "optional"
+}
+
+function ts_init_suid {
+ PROG="$1"
+ ct=${#TS_SUID_PROGS[*]}
+
+ # Save info about original setting
+ TS_SUID_PROGS[$ct]=$PROG
+ TS_SUID_USER[$ct]=$(stat --printf="%U" $PROG)
+ TS_SUID_GROUP[$ct]=$(stat --printf="%G" $PROG)
+
+ chown root.root $PROG &> /dev/null
+ chmod u+s $PROG &> /dev/null
+}
+
+function ts_init_py {
+ LIBNAME="$1"
+
+ [ -f "$top_builddir/py${LIBNAME}.la" ] || ts_skip "py${LIBNAME} not compiled"
+
+ export LD_LIBRARY_PATH="$top_builddir/.libs:$LD_LIBRARY_PATH"
+ export PYTHONPATH="$top_builddir/$LIBNAME/python:$top_builddir/.libs:$PYTHONPATH"
+
+ export PYTHON_VERSION=$(awk '/^PYTHON_VERSION/ { print $3 }' $top_builddir/Makefile)
+ export PYTHON_MAJOR_VERSION=$(echo $PYTHON_VERSION | sed 's/\..*//')
+
+ export PYTHON="python${PYTHON_MAJOR_VERSION}"
+}
+
+function ts_run {
+ declare -a args
+ local asan_options="strict_string_checks=1:detect_stack_use_after_return=1:check_initialization_order=1:strict_init_order=1"
+
+ #
+ # ASAN mode
+ #
+ if [ "$TS_ENABLE_ASAN" == "yes" -o "$TS_ENABLE_UBSAN" == "yes" ]; then
+ args+=(env)
+ if [ "$TS_ENABLE_ASAN" == "yes" ]; then
+ # detect_leaks isn't supported on s390x: https://github.com/llvm/llvm-project/blob/master/compiler-rt/lib/lsan/lsan_common.h
+ if [ "$(uname -m)" != "s390x" ]; then
+ asan_options="$asan_options:detect_leaks=1"
+ fi
+ args+=(ASAN_OPTIONS=$asan_options)
+ fi
+ if [ "$TS_ENABLE_UBSAN" == "yes" ]; then
+ args+=(UBSAN_OPTIONS=print_stacktrace=1:print_summary=1:halt_on_error=1)
+ fi
+ fi
+
+ #
+ # valgrind mode
+ #
+ if [ -n "$TS_VALGRIND_CMD" ]; then
+ args+=(libtool --mode=execute "$TS_VALGRIND_CMD" --tool=memcheck --leak-check=full)
+ args+=(--leak-resolution=high --num-callers=20 --log-file="$TS_VGDUMP")
+ fi
+
+ "${args[@]}" "$@"
+}
+
+function ts_gen_diff_from {
+ local res=0
+ local expected="$1"
+ local output="$2"
+ local difffile="$3"
+
+ diff -u $expected $output > $difffile
+
+ if [ $? -ne 0 ] || [ -s $difffile ]; then
+ res=1
+ if [ "$TS_SHOWDIFF" == "yes" -a "$TS_KNOWN_FAIL" != "yes" ]; then
+ echo
+ echo "diff-{{{"
+ cat $difffile
+ echo "}}}-diff"
+ echo
+ fi
+ else
+ rm -f $difffile;
+ fi
+
+ return $res
+}
+
+function ts_gen_diff {
+ local status_out=0
+ local status_err=0
+
+ [ -f "$TS_OUTPUT" ] || return 1
+ [ -f "$TS_EXPECTED" ] || TS_EXPECTED=/dev/null
+
+ # remove libtool lt- prefixes
+ sed --in-place 's/^lt\-\(.*\: \)/\1/g' $TS_OUTPUT
+ sed --in-place 's/^lt\-\(.*\: \)/\1/g' $TS_ERRLOG
+
+ [ -d "$TS_DIFFDIR" ] || mkdir -p "$TS_DIFFDIR"
+
+ ts_gen_diff_from $TS_EXPECTED $TS_OUTPUT $TS_DIFF
+ status_out=$?
+
+ # error log is fully optional
+ [ -f "$TS_EXPECTED_ERR" ] || TS_EXPECTED_ERR=/dev/null
+ [ -f "$TS_ERRLOG" ] || TS_ERRLOG=/dev/null
+
+ ts_gen_diff_from $TS_EXPECTED_ERR $TS_ERRLOG $TS_DIFF.err
+ status_err=$?
+
+ if [ $status_out -ne 0 -o $status_err -ne 0 ]; then
+ return 1
+ fi
+ return 0
+}
+
+function tt_gen_mem_report {
+ if [ -n "$TS_VALGRIND_CMD" ]; then
+ grep -q -E 'ERROR SUMMARY: [1-9]' $TS_VGDUMP &> /dev/null
+ if [ $? -eq 0 ]; then
+ echo "mem-error detected!"
+ fi
+ else
+ echo "$1"
+ fi
+}
+
+function ts_finalize_subtest {
+ local res=0
+
+ ts_gen_diff
+ if [ $? -eq 1 ]; then
+ ts_failed_subtest "$1"
+ res=1
+ else
+ ts_report_ok "$(tt_gen_mem_report "$1")"
+ fi
+
+ [ $res -ne 0 ] && TS_NSUBFAILED=$(( $TS_NSUBFAILED + 1 ))
+
+ # reset environment back to parental test
+ ts_init_core_env
+
+ return $res
+}
+
+function ts_skip_subtest {
+ ts_report_skip "$1"
+ # reset environment back to parental test
+ ts_init_core_env
+
+}
+
+function ts_finalize {
+ ts_cleanup_on_exit
+
+ if [ $TS_NSUBTESTS -ne 0 ]; then
+ if ! ts_gen_diff || [ $TS_NSUBFAILED -ne 0 ]; then
+ ts_failed "$TS_NSUBFAILED from $TS_NSUBTESTS sub-tests"
+ else
+ ts_ok "all $TS_NSUBTESTS sub-tests PASSED"
+ fi
+ fi
+
+ ts_gen_diff || ts_failed "$1"
+ ts_ok "$1"
+}
+
+function ts_die {
+ ts_log "$1"
+ ts_finalize
+}
+
+function ts_cleanup_on_exit {
+
+ for idx in $(seq 0 $((${#TS_SUID_PROGS[*]} - 1))); do
+ PROG=${TS_SUID_PROGS[$idx]}
+ chmod a-s $PROG &> /dev/null
+ chown ${TS_SUID_USER[$idx]}.${TS_SUID_GROUP[$idx]} $PROG &> /dev/null
+ done
+
+ for dev in "${TS_LOOP_DEVS[@]}"; do
+ ts_device_deinit "$dev"
+ done
+ unset TS_LOOP_DEVS
+
+ ts_scsi_debug_rmmod
+}
+
+function ts_image_md5sum {
+ local img=${1:-"$TS_OUTDIR/${TS_TESTNAME}.img"}
+ echo $("$TS_HELPER_MD5" < "$img") $(basename "$img")
+}
+
+function ts_image_init {
+ local mib=${1:-"5"} # size in MiBs
+ local img=${2:-"$TS_OUTDIR/${TS_TESTNAME}.img"}
+
+ rm -f $img
+ truncate -s "${mib}M" "$img"
+ echo "$img"
+ return 0
+}
+
+function ts_register_loop_device {
+ local ct=${#TS_LOOP_DEVS[*]}
+ TS_LOOP_DEVS[$ct]=$1
+}
+
+function ts_device_init {
+ local img
+ local dev
+
+ img=$(ts_image_init $1 $2)
+ dev=$($TS_CMD_LOSETUP --show -f "$img")
+ if [ "$?" != "0" -o "$dev" = "" ]; then
+ ts_die "Cannot init device"
+ fi
+
+ ts_register_loop_device "$dev"
+ TS_LODEV=$dev
+}
+
+# call from ts_cleanup_on_exit() only because of TS_LOOP_DEVS maintenance
+function ts_device_deinit {
+ local DEV="$1"
+
+ if [ -b "$DEV" ]; then
+ $TS_CMD_UMOUNT "$DEV" &> /dev/null
+ $TS_CMD_LOSETUP -d "$DEV" &> /dev/null
+ fi
+}
+
+function ts_blkidtag_by_devname()
+{
+ local tag=$1
+ local dev=$2
+ local out
+ local rval
+
+ out=$($TS_CMD_BLKID -p -s "$tag" -o value "$dev")
+ rval=$?
+ printf "%s\n" "$out"
+
+ test -n "$out" -a "$rval" = "0"
+ return $?
+}
+
+function ts_uuid_by_devname {
+ ts_blkidtag_by_devname "UUID" "$1"
+ return $?
+}
+
+function ts_label_by_devname {
+ ts_blkidtag_by_devname "LABEL" "$1"
+ return $?
+}
+
+function ts_fstype_by_devname {
+ ts_blkidtag_by_devname "TYPE" "$1"
+ return $?
+}
+
+function ts_device_has {
+ local TAG="$1"
+ local VAL="$2"
+ local DEV="$3"
+ local vl=""
+
+ vl=$(ts_blkidtag_by_devname "$TAG" "$DEV")
+ test $? = 0 -a "$vl" = "$VAL"
+ return $?
+}
+
+function ts_is_uuid()
+{
+ printf "%s\n" "$1" | egrep -q '^[0-9a-z]{8}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{12}$'
+ return $?
+}
+
+function ts_udevadm_settle()
+{
+ local dev=$1 # optional, might be empty
+ shift # all other args are tags, LABEL, UUID, ...
+ udevadm settle
+}
+
+function ts_mount {
+ local out
+ local result
+ local msg
+ local fs
+ local fs_exp=$1
+ shift
+
+ out=$($TS_CMD_MOUNT "$@" 2>&1)
+ result=$?
+ echo -n "$out" >> $TS_OUTPUT
+
+ if [ $result != 0 ] \
+ && msg=$(echo "$out" | grep -m1 "unknown filesystem type")
+ then
+ # skip only if reported fs correctly and if it's not available
+ fs=$(echo "$msg" | sed -n "s/.*type '\(.*\)'$/\1/p")
+ [ "$fs" = "fs_exp" ] \
+ && grep -qe "[[:space:]]${fs}$" /proc/filesystems &>/dev/null \
+ || ts_skip "$msg"
+ fi
+ return $result
+}
+
+function ts_is_mounted {
+ local DEV=$(ts_canonicalize "$1")
+
+ grep -q "\(^\| \)$DEV " /proc/mounts && return 0
+
+ if [ "${DEV#/dev/loop/}" != "$DEV" ]; then
+ grep -q "^/dev/loop${DEV#/dev/loop/} " /proc/mounts && return 0
+ fi
+ return 1
+}
+
+function ts_fstab_open {
+ echo "# <!-- util-linux test entry" >> /etc/fstab
+}
+
+function ts_fstab_close {
+ echo "# -->" >> /etc/fstab
+ sync /etc/fstab 2>/dev/null
+}
+
+function ts_fstab_addline {
+ local SPEC="$1"
+ local MNT=${2:-"$TS_MOUNTPOINT"}
+ local FS=${3:-"auto"}
+ local OPT=${4:-"defaults"}
+
+ echo "$SPEC $MNT $FS $OPT 0 0" >> /etc/fstab
+}
+
+function ts_fstab_lock {
+ ts_lock "fstab"
+}
+
+function ts_fstab_add {
+ ts_fstab_lock
+ ts_fstab_open
+ ts_fstab_addline $*
+ ts_fstab_close
+}
+
+function ts_fstab_clean {
+ ts_have_lock "fstab" || return 0
+ sed --in-place "
+/# <!-- util-linux/!b
+:a
+/# -->/!{
+ N
+ ba
+}
+s/# <!-- util-linux.*-->//;
+/^$/d" /etc/fstab
+
+ sync /etc/fstab 2>/dev/null
+ ts_unlock "fstab"
+}
+
+function ts_fdisk_clean {
+ local DEVNAME=$1
+
+ # remove non comparable parts of fdisk output
+ if [ -n "${DEVNAME}" ]; then
+ sed -i -e "s@${DEVNAME}@<removed>@;" $TS_OUTPUT $TS_ERRLOG
+ fi
+
+ sed -i \
+ -e 's/Disk identifier:.*/Disk identifier: <removed>/' \
+ -e 's/Created a new partition.*/Created a new partition <removed>./' \
+ -e 's/Created a new .* disklabel .*/Created a new disklabel./' \
+ -e 's/^Device[[:blank:]]*Start/Device Start/' \
+ -e 's/^Device[[:blank:]]*Boot/Device Boot/' \
+ -e 's/Welcome to fdisk.*/Welcome to fdisk <removed>./' \
+ -e 's/typescript file.*/typescript file <removed>./' \
+ -e 's@^\(I/O size (minimum/op.* bytes /\) [1-9][0-9]* @\1 <removed> @' \
+ $TS_OUTPUT $TS_ERRLOG
+}
+
+
+# https://stackoverflow.com/questions/41603787/how-to-find-next-available-file-descriptor-in-bash
+function ts_find_free_fd()
+{
+ local rco
+ local rci
+ for fd in {3..200}; do
+ rco="$(true 2>/dev/null >&${fd}; echo $?)"
+ rci="$(true 2>/dev/null <&${fd}; echo $?)"
+ if [[ "${rco}${rci}" = "11" ]]; then
+ echo "$fd"
+ return 0
+ fi
+ done
+ return 1
+}
+
+function ts_get_lock_fd {
+ local resource=$1
+ local fd
+
+ for fd in "${!TS_LOCKFILE_FD[@]}"; do
+ if [ "${TS_LOCKFILE_FD["$fd"]}" = "$resource" ]; then
+ echo "$fd"
+ return 0
+ fi
+ done
+ return 1
+}
+
+function ts_have_lock {
+ local resource=$1
+
+ test "$TS_NOLOCKS" = "yes" && return 0
+ ts_get_lock_fd "$resource" >/dev/null && return 0
+ return 1
+}
+
+function ts_lock {
+ local resource="$1"
+ local lockfile="${TS_LOCKDIR}/${resource}.lock"
+ local fd
+
+ if [ "$TS_NOLOCKS" == "yes" ]; then
+ return 0
+ fi
+
+ # Don't lock again
+ fd=$(ts_get_lock_fd "$resource")
+ if [ -n "$fd" ]; then
+ echo "[$$ $TS_TESTNAME] ${resource} already locked!"
+ return 0
+ fi
+
+ fd=$(ts_find_free_fd) || ts_skip "failed to find lock fd"
+
+ eval "exec $fd>$lockfile"
+ flock --exclusive "$fd" || ts_skip "failed to lock $resource"
+
+ TS_LOCKFILE_FD["$fd"]="$resource"
+ ###echo "[$$ $TS_TESTNAME] Locked $resource"
+}
+
+function ts_unlock {
+ local resource="$1"
+ local lockfile="${TS_LOCKDIR}/${resource}.lock"
+ local fd
+
+ if [ "$TS_NOLOCKS" == "yes" ]; then
+ return 0
+ fi
+
+ fd=$(ts_get_lock_fd "$resource")
+ if [ -n "$fd" ]; then
+ eval "exec $fd<&-"
+ TS_LOCKFILE_FD["$fd"]=""
+ ###echo "[$$ $TS_TESTNAME] Unlocked $resource"
+ else
+ echo "[$$ $TS_TESTNAME] unlocking unlocked $resource!?"
+ fi
+}
+
+function ts_scsi_debug_init {
+ local devname
+ local t
+ TS_DEVICE="none"
+
+ ts_lock "scsi_debug"
+
+ # dry run is not really reliable, real modprobe may still fail
+ modprobe --dry-run --quiet scsi_debug &>/dev/null \
+ || ts_skip "missing scsi_debug module (dry-run)"
+
+ # skip if still in use or removal of modules not supported at all
+ # We don't want a slow timeout here so we don't use ts_scsi_debug_rmmod!
+ modprobe -r scsi_debug &>/dev/null
+ if [ "$?" -eq 1 ]; then
+ ts_unlock "scsi_debug"
+ ts_skip "cannot remove scsi_debug module (rmmod)"
+ fi
+
+ modprobe -b scsi_debug "$@" &>/dev/null \
+ || ts_skip "cannot load scsi_debug module (modprobe)"
+
+ # it might be still not loaded, modprobe.conf or whatever
+ lsmod 2>/dev/null | grep -q "^scsi_debug " \
+ || ts_skip "scsi_debug module not loaded (lsmod)"
+
+ udevadm settle
+
+ # wait for device if udevadm settle does not work
+ for t in 0 0.02 0.05 0.1 1; do
+ sleep $t
+ devname=$(grep --with-filename scsi_debug /sys/block/*/device/model) && break
+ done
+ [ -n "${devname}" ] || ts_die "timeout waiting for scsi_debug device"
+
+ devname=$(echo $devname | awk -F '/' '{print $4}')
+ TS_DEVICE="/dev/${devname}"
+
+ # TODO validate that device is really up, for now just a warning on stderr
+ test -b $TS_DEVICE || echo "warning: scsi_debug device is still down" >&2
+}
+
+# automatically called once in ts_cleanup_on_exit()
+function ts_scsi_debug_rmmod {
+ local err=1
+ local t
+ local lastmsg
+
+ # We must not run if we don't have the lock
+ ts_have_lock "scsi_debug" || return 0
+
+ # Return early most importantly in case we are not root or the module does
+ # not exist at all.
+ [ $UID -eq 0 ] || return 0
+ [ -n "$TS_DEVICE" ] || return 0
+ lsmod 2>/dev/null | grep -q "^scsi_debug " || return 0
+
+ udevadm settle
+
+ # wait for successful rmmod if udevadm settle does not work
+ for t in 0 0.02 0.05 0.1 1; do
+ sleep $t
+ lastmsg="$(modprobe -r scsi_debug 2>&1)" && err=0 && break
+ done
+
+ if [ "$err" = "1" ]; then
+ ts_log "rmmod failed: '$lastmsg'"
+ ts_log "timeout removing scsi_debug module (rmmod)"
+ return 1
+ fi
+ if lsmod | grep -q "^scsi_debug "; then
+ ts_log "BUG! scsi_debug still loaded"
+ return 1
+ fi
+
+ # TODO Do we need to validate that all devices are gone?
+ udevadm settle
+ test -b "$TS_DEVICE" && echo "warning: scsi_debug device is still up" >&2
+
+ # TODO unset TS_DEVICE, check that nobody uses it later, e.g. ts_fdisk_clean
+
+ ts_unlock "scsi_debug"
+ return 0
+}
+
+function ts_resolve_host {
+ local host="$1"
+ local tmp
+
+ # currently we just resolve default records (might be "A", ipv4 only)
+ if type "dig" >/dev/null 2>&1; then
+ tmp=$(dig "$host" +short 2>/dev/null) || return 1
+ elif type "nslookup" >/dev/null 2>&1; then
+ tmp=$(nslookup "$host" 2>/dev/null) || return 1
+ tmp=$(echo "$tmp"| grep -A1 "^Name:"| grep "^Address:"| cut -d" " -f2)
+ elif type "host" >/dev/null 2>&1; then
+ tmp=$(host "$host" 2>/dev/null) || return 1
+ tmp=$(echo "$tmp" | grep " has address " | cut -d " " -f4)
+ elif type "getent" >/dev/null 2>&1; then
+ tmp=$(getent ahosts "$host" 2>/dev/null) || return 1
+ tmp=$(echo "$tmp" | cut -d " " -f 1 | sort -u)
+ fi
+
+ # we return 1 if tmp is empty
+ test -n "$tmp" || return 1
+ echo "$tmp" | sort -R | head -n 1
+}
+
+# listen to unix socket (background socat)
+function ts_init_socket_to_file {
+ local socket=$1
+ local outfile=$2
+ local pid="0"
+
+ ts_check_prog "socat"
+ rm -f "$socket" "$outfile"
+
+ # if socat is too old for these options we'll skip it below
+ socat -u UNIX-LISTEN:$socket,fork,max-children=1,backlog=128 \
+ STDOUT > "$outfile" 2>/dev/null &
+ pid=$!
+
+ # check for running background process
+ if [ "$pid" -le "0" ] || ! kill -s 0 "$pid" &>/dev/null; then
+ ts_skip "unable to run socat"
+ fi
+ # wait for the socket listener
+ if ! socat -u /dev/null UNIX-CONNECT:$socket,retry=30,interval=0.1 &>/dev/null; then
+ kill -9 "$pid" &>/dev/null
+ ts_skip "timeout waiting for socat socket"
+ fi
+ # check socket again
+ if ! socat -u /dev/null UNIX-CONNECT:$socket &>/dev/null; then
+ kill -9 "$pid" &>/dev/null
+ ts_skip "socat socket stopped listening"
+ fi
+}
+
+function ts_has_mtab_support {
+ grep -q '#define USE_LIBMOUNT_SUPPORT_MTAB' ${top_builddir}/config.h
+ if [ $? == 0 ]; then
+ echo "yes"
+ else
+ echo "no"
+ fi
+}
+
+function ts_has_ncurses_support {
+ grep -q '#define HAVE_LIBNCURSES' ${top_builddir}/config.h
+ if [ $? == 0 ]; then
+ echo "yes"
+ else
+ echo "no"
+ fi
+}