LVM2/test/shell name-mangling.sh

[prajnoha@sourceware.org]

CVSROOT:	/cvs/lvm2
Module name:	LVM2
Changes by:	prajnoha@sourceware.org	2012-03-05 12:49:06

Added files:
	test/shell     : name-mangling.sh 

Log message:
	Add test for name mangling functionality.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/test/shell/name-mangling.sh.diff?cvsroot=lvm2&r1=NONE&r2=1.1

/cvs/lvm2/LVM2/test/shell/name-mangling.sh,v  -->  standard output
revision 1.1
--- LVM2/test/shell/name-mangling.sh
+++ -	2012-03-05 12:49:07.028923000 +0000
@@ -0,0 +1,230 @@
+# Copyright (C) 2012 Red Hat, Inc. All rights reserved.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+. lib/test
+
+name_prefix=$RANDOM
+
+CHARACTER_WHITELIST="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789#+-.:=@_"
+FAIL_MIXED_STR="contains mixed mangled and unmangled characters"
+FAIL_MULTI_STR="seems to be multiple mangled"
+FAIL_BLACK_STR="should be mangled but it contains blacklisted characters"
+CORRECT_FORM_STR="name already in correct form"
+RENAMING_STR="renaming to"
+
+function create_dm_dev()
+{
+	local mode=$1
+	local name=$2;
+
+	if [ $mode = "none" ]; then
+		# there's no mangling done - we must use --verifyudev here in
+		# case we're testing with udev so we have the nodes in place,
+		# udev would not create them - it can't handle unmangled names
+		verify_udev="--verifyudev"
+	else
+		verify_udev=""
+	fi
+
+	dmsetup create "${name_prefix}$name" $verify_udev --manglename $mode --table "0 1 zero"
+}
+
+function remove_dm_dev()
+{
+	local mode=$1
+	local name=$2
+
+	if [ $mode = "none" ]; then
+		verify_udev="--verifyudev"
+	else
+		verify_udev=""
+	fi
+
+	dmsetup remove $verify_udev --manglename $mode "${name_prefix}$name"
+}
+
+function check_create_and_remove()
+{
+	local mode=$1
+	local input_name=$2
+	local dm_name=$3
+	local r=0
+
+	if [ $mode = "none" ]; then
+		verify_udev="--verifyudev"
+	else
+		verify_udev=""
+	fi
+
+	dmsetup create "${name_prefix}$input_name" $verify_udev --manglename $mode --table "0 1 zero" 2>err && \
+	test -b "$DM_DEV_DIR/mapper/${name_prefix}$dm_name" && \
+	dmsetup remove "${name_prefix}$input_name" $verify_udev --manglename $mode || r=1
+
+	if [ $dm_name = "FAIL_MIXED" ]; then
+		r=0
+		grep "$FAILED_MIXED_STR" err || r=1
+	elif [ $dm_name = "FAIL_MULTI" ]; then
+		r=0
+		grep "$FAILED_MULTI_STR" err || r=1
+	elif [ $dm_name = "FAIL_BLACK" ]; then
+		r=0
+		grep "$FAILED_BLACK_STR" err || r=1
+	fi
+
+	return $r
+}
+
+function check_dm_field()
+{
+	local mode=$1
+	local dm_name="$2"
+	local field=$3
+	local expected="$4"
+
+	value=$(dmsetup info --rows --noheadings --manglename $mode -c -o $field "${DM_DEV_DIR}/mapper/${name_prefix}$dm_name" 2> err || true)
+
+	if [ "$expected" = "FAIL_MIXED" ]; then
+		grep "$FAIL_MIXED_STR" err
+	elif [ "$expected" = "FAIL_MULTI" ]; then
+		grep "$FAIL_MULTI_STR" err
+	elif [ "$expected" = "FAIL_BLACK" ]; then
+		grep "$FAIL_BLACK_STR" err
+	else
+		test "$value" = "${name_prefix}$expected"
+	fi
+}
+
+function check_expected_names()
+{
+	local mode=$1
+	local dm_name="$2"
+	local r=0
+
+	create_dm_dev none "$dm_name"
+
+	test -b "$DM_DEV_DIR/mapper/${name_prefix}$dm_name" && \
+	check_dm_field none "$dm_name" name "$dm_name" && \
+	check_dm_field $mode "$dm_name" name "$3" && \
+	check_dm_field $mode "$dm_name" mangled_name "$4" && \
+	check_dm_field $mode "$dm_name" unmangled_name "$5" || r=1
+
+	remove_dm_dev none "$dm_name"
+
+	return $r
+}
+
+function check_mangle_cmd()
+{
+	local mode=$1
+	local dm_name="$2"
+	local expected="$3"
+	local rename_expected=0
+	local r=0
+
+	create_dm_dev none "$dm_name"
+
+	dmsetup mangle --manglename $mode "${name_prefix}$dm_name" 1>out 2>err || true;
+
+	if [ "$expected" = "OK" ]; then
+		grep "$CORRECT_FORM_STR" out || r=1
+	elif [ "$expected" = "FAIL_MIXED" ]; then
+		grep "$FAIL_MIXED_STR" err || r=1
+	elif [ "$expected" = "FAIL_MULTI" ]; then
+		grep "$FAIL_MULTI_STR" err || r=1
+	else
+		rename_expected=1
+		grep -F "$RENAMING_STR ${name_prefix}$expected" out || r=1
+	fi
+
+	if [ $r = 0 -a $rename_expected = 1 ]; then
+		# successfuly renamed to expected name
+		remove_dm_dev none "$expected"
+	elif [ $r = 1 ]; then
+		# failed to rename to expected or renamed when it should not - find the new name
+		new_name=$(sed -e "s/.*: $RENAMING_STR //g" out)
+		# try to remove any of the form - falling back to less probable error scenario
+		dmsetup remove --verifyudev --manglename none "$new_name" || \
+		remove_dm_dev none "$dm_name" || remove_dm_dev none "$expected"
+	else
+		# successfuly done nothing
+		remove_dm_dev none "$dm_name"
+	fi
+
+	return $r
+}
+
+# check dmsetup can process path where the last component is not equal dm name (rhbz #797322)
+r=0
+create_dm_dev auto "abc"
+ln -s ${DM_DEV_DIR}/mapper/${name_prefix}abc ${DM_DEV_DIR}/${name_prefix}xyz
+dmsetup status ${DM_DEV_DIR}/${name_prefix}xyz || r=1
+remove_dm_dev auto "abc"
+if [ r = 1 ]; then
+	exit 1
+fi
+
+### ALL WHITELISTED CHARACTERS ###
+# none of these should be mangled in any mode
+name="$CHARACTER_WHITELIST"
+for mode in auto hex none; do
+	check_expected_names $mode "$name" "$name" "$name" "$name"
+	check_mangle_cmd $mode "$name" "OK"
+done
+
+
+#### NONE MANGLING MODE ###
+check_create_and_remove none 'a b' 'a b'
+check_create_and_remove none 'a\x20b' 'a\x20b'
+check_create_and_remove none 'a b\x20c' 'a b\x20c'
+check_create_and_remove none 'a\x5cx20b' 'a\x5cx20b'
+
+check_expected_names none 'a b' 'a b' 'a\x20b' 'a b'
+check_expected_names none 'a\x20b' 'a\x20b' 'a\x20b' 'a b'
+check_expected_names none 'a b\x20c' 'a b\x20c' 'FAIL_MIXED' 'a b c'
+check_expected_names none 'a\x5cx20b' 'a\x5cx20b' 'a\x5cx20b' 'a\x20b'
+
+check_mangle_cmd none 'a b' 'OK'
+check_mangle_cmd none 'a\x20b' 'a b'
+check_mangle_cmd none 'a b\x20c' 'a b c'
+check_mangle_cmd none 'a\x5cx20b' 'a\x20b'
+
+
+### AUTO MANGLING MODE ###
+check_create_and_remove auto 'a b' 'a\x20b'
+check_create_and_remove auto 'a\x20b' 'a\x20b'
+check_create_and_remove auto 'a b\x20c' 'FAIL_MIXED'
+check_create_and_remove auto 'a\x5cx20b' 'FAIL_MULTI'
+
+check_expected_names auto 'a b' 'FAIL_BLACK' 'FAIL_BLACK' 'FAIL_BLACK'
+check_expected_names auto 'a\x20b' 'a b' 'a\x20b' 'a b'
+check_expected_names auto 'a b\x20c' 'FAIL_BLACK' 'FAIL_BLACK' 'FAIL_BLACK'
+check_expected_names auto 'a\x5cx20b' 'FAIL_MULTI' 'FAIL_MULTI' 'FAIL_MULTI'
+
+check_mangle_cmd auto 'a b' 'a\x20b'
+check_mangle_cmd auto 'a\x20b' 'OK'
+check_mangle_cmd auto 'a b\x20c' 'FAIL_MIXED'
+check_mangle_cmd auto 'a\x5cx20b' 'FAIL_MULTI'
+
+
+### HEX MANGLING MODE ###
+check_create_and_remove hex 'a b' 'a\x20b'
+check_create_and_remove hex 'a\x20b' 'a\x5cx20b'
+check_create_and_remove hex 'a b\x20c' 'a\x20b\x5cx20c'
+check_create_and_remove hex 'a\x5cx20b' 'a\x5cx5cx20b'
+
+check_expected_names hex 'a b' 'FAIL_BLACK' 'FAIL_BLACK' 'FAIL_BLACK'
+check_expected_names hex 'a\x20b' 'a b' 'a\x20b' 'a b'
+check_expected_names hex 'a b\x20c' 'FAIL_BLACK' 'FAIL_BLACK' 'FAIL_BLACK'
+check_expected_names hex 'a\x5cx20b' 'a\x20b' 'a\x5cx20b' 'a\x20b'
+
+check_mangle_cmd hex 'a b' 'a\x20b'
+check_mangle_cmd hex 'a\x20b' 'OK'
+check_mangle_cmd hex 'a b\x20c' 'FAIL_MIXED'
+check_mangle_cmd hex 'a\x5cx20b' 'OK'