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Diffstat (limited to 'tests/functions.sh')
| -rw-r--r-- | tests/functions.sh | 949 |
1 files changed, 949 insertions, 0 deletions
diff --git a/tests/functions.sh b/tests/functions.sh new file mode 100644 index 0000000..2fb0ddb --- /dev/null +++ b/tests/functions.sh @@ -0,0 +1,949 @@ +# +# 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 { + if [ ! -x "$1" ]; then + ts_skip "${1##*/} not found" + fi +} + +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_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_VGDUMP="$TS_OUTDIR/$TS_TESTNAME.vgdump" + TS_DIFF="$TS_DIFFDIR/$TS_TESTNAME" + TS_EXPECTED="$TS_TOPDIR/expected/$TS_NS" + 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_VGDUMP="$TS_OUTDIR/$TS_TESTNAME-$TS_SUBNAME.vgdump" + TS_DIFF="$TS_DIFFDIR/$TS_TESTNAME-$TS_SUBNAME" + TS_EXPECTED="$TS_TOPDIR/expected/$TS_NS" + TS_MOUNTPOINT="$TS_OUTDIR/${TS_TESTNAME}-${TS_SUBNAME}-mnt" + + rm -f $TS_OUTPUT $TS_VGDUMP + [ -d "$TS_OUTDIR" ] || mkdir -p "$TS_OUTDIR" + + touch $TS_OUTPUT + [ -n "$TS_VALGRIND_CMD" ] && touch $TS_VGDUMP +} + +function ts_init_env { + local mydir=$(ts_abspath ${0%/*}) + local tmp + + LANG="POSIX" + LANGUAGE="POSIX" + LC_ALL="POSIX" + CHARSET="UTF-8" + ASAN_OPTIONS="detect_leaks=0" + + export LANG LANGUAGE LC_ALL CHARSET ASAN_OPTIONS + + mydir=$(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) + + # some ul commands search other ul commands in $PATH + export PATH="$top_builddir:$PATH" + + TS_SCRIPT="$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="$top_builddir/tests/output" + + # Don't lock if flock(1) is missing + type "flock" >/dev/null 2>&1 || TS_NOLOCKS="yes" + + ts_init_core_env + + TS_VERBOSE=$(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 [ "$tmp" == "yes" ]; then + TS_ENABLE_ASAN="yes" + fi + + BLKID_FILE="$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 $TS_VGDUMP + [ -d "$TS_OUTDIR" ] || mkdir -p "$TS_OUTDIR" + + touch $TS_OUTPUT + [ -n "$TS_VALGRIND_CMD" ] && touch $TS_VGDUMP + + if [ "$TS_VERBOSE" == "yes" ]; then + echo + echo " script: $TS_SCRIPT" + 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 " valgrind: $TS_VGDUMP" + echo " expected: $TS_EXPECTED" + 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 { + # + # valgrind mode + # + if [ -n "$TS_VALGRIND_CMD" ]; then + libtool --mode=execute \ + $TS_VALGRIND_CMD --tool=memcheck --leak-check=full \ + --leak-resolution=high --num-callers=20 \ + --log-file="$TS_VGDUMP" "$@" + # + # ASAN mode + # + elif [ "$TS_ENABLE_ASAN" == "yes" ]; then + ASAN_OPTIONS='detect_leaks=1' "$@" + + # + # Default mode + # + else + "$@" + fi +} + +function ts_gen_diff { + local res=0 + + [ -f "$TS_OUTPUT" ] || return 1 + [ -f "$TS_EXPECTED" ] || TS_EXPECTED=/dev/null + + # remove libtool lt- prefixes + sed --in-place 's/^lt\-\(.*\: \)/\1/g' $TS_OUTPUT + + [ -d "$TS_DIFFDIR" ] || mkdir -p "$TS_DIFFDIR" + diff -u $TS_EXPECTED $TS_OUTPUT > $TS_DIFF + + if [ $? -ne 0 ] || [ -s $TS_DIFF ]; then + res=1 + if [ "$TS_SHOWDIFF" == "yes" ]; then + echo + echo "diff-{{{" + cat $TS_DIFF + echo "}}}-diff" + echo + fi + else + rm -f $TS_DIFF; + fi + + return $res +} + +function tt_gen_mem_report { + if [ -n "$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 + fi + + sed -i \ + -e 's/Disk identifier:.*/Disk identifier: <removed>/' \ + -e 's/Created a new.*/Created a new <removed>./' \ + -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> @' \ + $TS_OUTPUT +} + + +# https://stackoverflow.com/questions/41603787/how-to-find-next-available-file-descriptor-in-bash +function ts_find_free_fd() +{ + local rco + local rci + for fd in {3..200}; do + rco="$(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 +} + |