#!/usr/bin/perl

# udev-test
#
# Provides automated testing of the udev binary.
# The whole test is self contained in this file, except the matching sysfs tree.
# Simply extend the @tests array, to add a new test variant.
#
# Every test is driven by its own temporary config file.
# This program prepares the environment, creates the config and calls udev.
#
# udev reads the config, looks at the provided sysfs and
# first creates and then removes the device node.
# After creation and removal the result is checked against the
# expected value and the result is printed.
#
# happy testing,
# Kay Sievers <kay.sievers@vrfy.org>, 2003
#
# Modified April 9, 2004 by Leann Ogasawara <ogasawara@osdl.org>
#  - expanded @tests array to add more symlinks and permissions tests
#  - some of the symlinks tests also test lack of node creation
#  - added symlink_test() function
#  - moved permissions and major_minor tests into their own functions

use warnings;
use strict;

my $PWD = $ENV{PWD};
my $sysfs     = "sys/";
my $udev_bin  = "../udev";
my $udev_root = "udev-root/"; # !!! directory will be removed !!!
my $udev_db   = ".udev.tdb";
my $perm      = "udev.permissions";
my $main_conf = "udev-test.conf";
my $conf_tmp  = "udev-test.rules";


my @tests = (
	{
		desc		=> "label test of scsi disc",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "boot_disk" ,
		conf		=> <<EOF
BUS="scsi", SYSFS{vendor}="IBM-ESXS", NAME="boot_disk%n"
KERNEL="ttyUSB0", NAME="visor"
EOF
	},
	{
		desc		=> "label test of scsi partition",
		subsys		=> "block",
		devpath		=> "/block/sda/sda1",
		exp_name	=> "boot_disk1" ,
		conf		=> <<EOF
BUS="scsi", SYSFS{vendor}="IBM-ESXS", NAME="boot_disk%n"
EOF
	},
	{
		desc		=> "label test of pattern match",
		subsys		=> "block",
		devpath		=> "/block/sda/sda1",
		exp_name	=> "boot_disk1" ,
		conf		=> <<EOF
BUS="scsi", SYSFS{vendor}="?IBM-ESXS", NAME="boot_disk%n-1"
BUS="scsi", SYSFS{vendor}="IBM-ESXS?", NAME="boot_disk%n-2"
BUS="scsi", SYSFS{vendor}="IBM-ES??", NAME="boot_disk%n"
BUS="scsi", SYSFS{vendor}="IBM-ESXSS", NAME="boot_disk%n-3"
EOF
	},
	{
		desc		=> "label test of multiple sysfs files",
		subsys		=> "block",
		devpath		=> "/block/sda/sda1",
		exp_name	=> "boot_disk1" ,
		conf		=> <<EOF
BUS="scsi", SYSFS{vendor}="IBM-ESXS", SYSFS{model}="ST336605LW   !#", NAME="boot_diskX%n"
BUS="scsi", SYSFS{vendor}="IBM-ESXS", SYSFS{model}="ST336605LW    !#", NAME="boot_disk%n"
EOF
	},
	{
		desc		=> "label test of max sysfs files",
		subsys		=> "block",
		devpath		=> "/block/sda/sda1",
		exp_name	=> "boot_disk1" ,
		conf		=> <<EOF
BUS="scsi", SYSFS{vendor}="IBM-ESXS", SYSFS{model}="ST336605LW    !#", SYSFS{scsi_level}="4", SYSFS{rev}="B245", SYSFS{type}="2", SYSFS{queue_depth}="32", NAME="boot_diskXX%n"
BUS="scsi", SYSFS{vendor}="IBM-ESXS", SYSFS{model}="ST336605LW    !#", SYSFS{scsi_level}="4", SYSFS{rev}="B245", SYSFS{type}="0", NAME="boot_disk%n"
EOF
	},
	{
		desc		=> "catch device by *",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "visor/0" ,
		conf		=> <<EOF
KERNEL="ttyUSB*", NAME="visor/%n"
EOF
	},
	{
		desc		=> "catch device by * - take 2",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "visor/0" ,
		conf		=> <<EOF
KERNEL="*USB1", NAME="bad"
KERNEL="*USB0", NAME="visor/%n"
EOF
	},
	{
		desc		=> "catch device by ?",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "visor/0" ,
		conf		=> <<EOF
KERNEL="ttyUSB??*", NAME="visor/%n-1"
KERNEL="ttyUSB??", NAME="visor/%n-2"
KERNEL="ttyUSB?", NAME="visor/%n"
EOF
	},
	{
		desc		=> "catch device by character class",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "visor/0" ,
		conf		=> <<EOF
KERNEL="ttyUSB[A-Z]*", NAME="visor/%n-1"
KERNEL="ttyUSB?[0-9]", NAME="visor/%n-2"
KERNEL="ttyUSB[0-9]*", NAME="visor/%n"
EOF
	},
	{
		desc		=> "replace kernel name",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "visor" ,
		conf		=> <<EOF
KERNEL="ttyUSB0", NAME="visor"
EOF
	},
	{
		desc		=> "Handle comment lines in config file (and replace kernel name)",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "visor" ,
		conf		=> <<EOF
# this is a comment
KERNEL="ttyUSB0", NAME="visor"

EOF
	},
	{
		desc		=> "Handle comment lines in config file with whitespace (and replace kernel name)",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "visor" ,
		conf		=> <<EOF
 # this is a comment with whitespace before the comment 
KERNEL="ttyUSB0", NAME="visor"

EOF
	},
	{
		desc		=> "Handle empty lines in config file (and replace kernel name)",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "visor" ,
		conf		=> <<EOF

KERNEL="ttyUSB0", NAME="visor"

EOF
	},
	{
		desc		=> "subdirectory handling",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "sub/direct/ory/visor" ,
		conf		=> <<EOF
KERNEL="ttyUSB0", NAME="sub/direct/ory/visor"
EOF
	},
	{
		desc		=> "place on bus of scsi partition",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "first_disk3" ,
		conf		=> <<EOF
BUS="scsi", PLACE="0:0:0:0", NAME="first_disk%n"
EOF
	},
	{
		desc		=> "test NAME substitution chars",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "Major:8:minor:3:kernelnumber:3:bus:0:0:0:0" ,
		conf		=> <<EOF
BUS="scsi", PLACE="0:0:0:0", NAME="Major:%M:minor:%m:kernelnumber:%n:bus:%b"
EOF
	},
	{
		desc		=> "test NAME substitution chars (with length limit)",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "M8-m3-n3-b0:0-sIBM" ,
		conf		=> <<EOF
BUS="scsi", PLACE="0:0:0:0", NAME="M%M-m%m-n%n-b%3b-s%3s{vendor}"
EOF
	},
	{
		desc		=> "old style SYSFS_ attribute",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "good" ,
		conf		=> <<EOF
BUS="scsi", SYSFS_vendor="IBM-ESXS", NAME="good"
EOF
	},
	{
		desc		=> "sustitution of sysfs value (%s{file})",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "disk-IBM-ESXS-sda" ,
		conf		=> <<EOF
BUS="scsi", SYSFS{vendor}="IBM-ESXS", NAME="disk-%s{vendor}-%k"
KERNEL="ttyUSB0", NAME="visor"
EOF
	},
	{
		desc		=> "program result substitution",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "special-device-3" ,
		conf		=> <<EOF
BUS="scsi", PROGRAM="/bin/echo -n special-device", RESULT="-special-*", NAME="%c-1-%n"
BUS="scsi", PROGRAM="/bin/echo -n special-device", RESULT="special--*", NAME="%c-2-%n"
BUS="scsi", PROGRAM="/bin/echo -n special-device", RESULT="special-device-", NAME="%c-3-%n"
BUS="scsi", PROGRAM="/bin/echo -n special-device", RESULT="special-devic", NAME="%c-4-%n"
BUS="scsi", PROGRAM="/bin/echo -n special-device", RESULT="special-*", NAME="%c-%n"
EOF
	},
	{
		desc		=> "program result substitution (newline removal)",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "newline_removed" ,
		conf		=> <<EOF
BUS="scsi", PROGRAM="/bin/echo test", RESULT="test", NAME="newline_removed"
EOF
	},
	{
		desc		=> "program result substitution",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "test-0:0:0:0" ,
		conf		=> <<EOF
BUS="scsi", PROGRAM="/bin/echo -n test-%b", RESULT="test-0:0*", NAME="%c"
EOF
	},
	{
		desc		=> "program with escaped format char (tricky: callout returns format char!)",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "escape-3" ,
		conf		=> <<EOF
BUS="scsi", PROGRAM="/bin/echo -n escape-%%n", KERNEL="sda3", NAME="%c"
EOF
	},
	{
		desc		=> "program with lots of arguments",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "foo9" ,
		conf		=> <<EOF
BUS="scsi", PROGRAM="/bin/echo -n foo3 foo4 foo5 foo6 foo7 foo8 foo9", KERNEL="sda3", NAME="%c{7}"
EOF
	},
	{
		desc		=> "program with subshell",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "bar9" ,
		conf		=> <<EOF
BUS="scsi", PROGRAM="/bin/sh -c 'echo foo3 foo4 foo5 foo6 foo7 foo8 foo9 | sed  s/foo9/bar9/'", KERNEL="sda3", NAME="%c{7}"
EOF
	},
	{
		desc		=> "program arguments combined with apostrophes",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "foo7" ,
		conf		=> <<EOF
BUS="scsi", PROGRAM="/bin/echo -n 'foo3 foo4'   'foo5   foo6   foo7 foo8'", KERNEL="sda3", NAME="%c{5}"
EOF
	},
	{
		desc		=> "characters before the %c{N} substitution",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "my-foo9" ,
		conf		=> <<EOF
BUS="scsi", PROGRAM="/bin/echo -n foo3 foo4 foo5 foo6 foo7 foo8 foo9", KERNEL="sda3", NAME="my-%c{7}"
EOF
	},
	{
		desc		=> "substitute the second to last argument",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "my-foo8" ,
		conf		=> <<EOF
BUS="scsi", PROGRAM="/bin/echo -n foo3 foo4 foo5 foo6 foo7 foo8 foo9", KERNEL="sda3", NAME="my-%c{6}"
EOF
	},
	{
		desc		=> "invalid program for device with no bus",
		subsys		=> "tty",
		devpath		=> "/class/tty/console",
		exp_name	=> "TTY" ,
		conf		=> <<EOF
BUS="scsi", PROGRAM="/bin/echo -n foo", RESULT="foo", NAME="foo"
KERNEL="console", NAME="TTY"
EOF
	},
	{
		desc		=> "valid program for device with no bus",
		subsys		=> "tty",
		devpath		=> "/class/tty/console",
		exp_name	=> "foo" ,
		conf		=> <<EOF
PROGRAM="/bin/echo -n foo", RESULT="foo", NAME="foo"
KERNEL="console", NAME="TTY"
EOF
	},
	{
		desc		=> "invalid label for device with no bus",
		subsys		=> "tty",
		devpath		=> "/class/tty/console",
		exp_name	=> "TTY" ,
		conf		=> <<EOF
BUS="foo", SYSFS{dev}="5:1", NAME="foo"
KERNEL="console", NAME="TTY"
EOF
	},
	{
		desc		=> "valid label for device with no bus",
		subsys		=> "tty",
		devpath		=> "/class/tty/console",
		exp_name	=> "foo" ,
		conf		=> <<EOF
SYSFS{dev}="5:1", NAME="foo"
KERNEL="console", NAME="TTY"
EOF
	},
	{
		desc		=> "program and bus type match",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "scsi-0:0:0:0" ,
		conf		=> <<EOF
BUS="usb", PROGRAM="/bin/echo -n usb-%b", NAME="%c"
BUS="scsi", PROGRAM="/bin/echo -n scsi-%b", NAME="%c"
BUS="foo", PROGRAM="/bin/echo -n foo-%b", NAME="%c"
EOF
	},
	{
		desc		=> "create all possible partitions",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "boot_disk15" ,
		conf		=> <<EOF
BUS="scsi", SYSFS{vendor}="IBM-ESXS", NAME{all_partitions}="boot_disk"
EOF
	},
	{
		desc		=> "sysfs parent hierarchy",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "visor" ,
		conf		=> <<EOF
SYSFS{idProduct}="2008", NAME="visor"
EOF
	},
	{
		desc		=> "name test with ! in the name",
		subsys		=> "block",
		devpath		=> "/block/rd!c0d0",
		exp_name	=> "rd/c0d0" ,
		conf		=> <<EOF
BUS="scsi", NAME="%k"
KERNEL="ttyUSB0", NAME="visor"
EOF
	},
	{
		desc		=> "name test with ! in the name, but no matching rule",
		subsys		=> "block",
		devpath		=> "/block/rd!c0d0",
		exp_name	=> "rd/c0d0" ,
		conf		=> <<EOF
KERNEL="ttyUSB0", NAME="visor"
EOF
	},
	{
		desc		=> "ID rule",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "scsi-0:0:0:0",
		conf		=> <<EOF
BUS="usb", ID="0:0:0:0", NAME="not-scsi"
BUS="scsi", ID="0:0:0:1", NAME="no-match"
BUS="scsi", ID=":0", NAME="short-id"
BUS="scsi", ID="/0:0:0:0", NAME="no-match"
BUS="scsi", ID="0:0:0:0", NAME="scsi-0:0:0:0"
EOF
	},
	{
		desc		=> "ID wildcard all",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "scsi-0:0:0:0",
		conf		=> <<EOF
BUS="scsi", ID="*:1", NAME="no-match"
BUS="scsi", ID="*:0:1", NAME="no-match"
BUS="scsi", ID="*:0:0:1", NAME="no-match"
BUS="scsi", ID="*", NAME="scsi-0:0:0:0"
BUS="scsi", ID="0:0:0:0", NAME="bad"
EOF
	},
	{
		desc		=> "ID wildcard partial",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "scsi-0:0:0:0",
		conf		=> <<EOF
BUS="scsi", ID="*:0", NAME="scsi-0:0:0:0"
BUS="scsi", ID="0:0:0:0", NAME="bad"
EOF
	},
	{
		desc		=> "ID wildcard partial 2",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "scsi-0:0:0:0",
		conf		=> <<EOF
BUS="scsi", ID="*:0:0:0", NAME="scsi-0:0:0:0"
BUS="scsi", ID="0:0:0:0", NAME="bad"
EOF
	},
	{
		desc		=> "ignore SYSFS attribute whitespace",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "ignored",
		conf		=> <<EOF
BUS="scsi", SYSFS{whitespace_test}="WHITE  SPACE", NAME="ignored"
EOF
	},
	{
		desc		=> "do not ignore SYSFS attribute whitespace",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "matched-with-space",
		conf		=> <<EOF
BUS="scsi", SYSFS{whitespace_test}="WHITE  SPACE ", NAME="wrong-to-ignore"
BUS="scsi", SYSFS{whitespace_test}="WHITE  SPACE   ", NAME="matched-with-space"
EOF
	},
	{
		desc		=> "permissions test",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "node",
		exp_perms	=> "5000::0444",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", NAME="node", OWNER="5000", MODE="0444"
EOF
	},
	{
		desc		=> "permissions ttyUSB0:root:uucp:0660",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "ttyUSB0",
		exp_perms	=> "0:14:0660",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n"
EOF
	},
	{
		desc		=> "permissions tty0::root:0444",
		subsys		=> "tty",
		devpath		=> "/class/tty/tty0",
		exp_name	=> "tty0",
		exp_perms	=> "0:0:0444",
		conf		=> <<EOF
KERNEL="tty0", NAME="tty0"
EOF
	},
	{
		desc		=> "permissions tty1:root::0555",
		subsys		=> "tty",
		devpath		=> "/class/tty/tty1",
		exp_name	=> "tty1",
		exp_perms	=> "0:0:0555",
		conf		=> <<EOF
KERNEL="tty1", NAME="tty1"
EOF
	},
	{
		desc		=> "permissions tty2:::0777",
		subsys		=> "tty",
		devpath		=> "/class/tty/tty2",
		exp_name	=> "tty2",
		exp_perms	=> "0:0:0777",
		conf		=> <<EOF
KERNEL="tty2", NAME="tty2"
EOF
	},
	{
		desc		=> "permissions tty3:::",
		subsys		=> "tty",
		devpath		=> "/class/tty/tty3",
		exp_name	=> "tty3",
		exp_perms	=> "0:0:0",
		conf		=> <<EOF
KERNEL="tty3", NAME="tty3"
EOF
	},
	{
		desc		=> "permissions i2c-300:root:sys:0744",
		subsys		=> "i2c-dev",
		devpath		=> "/class/i2c-dev/i2c-300",
		exp_name	=> "i2c-300",
		exp_perms	=> "0:3:0744",
		conf		=> <<EOF
KERNEL="i2c-300", NAME="i2c-300"
EOF
	},
	{
		desc		=> "permissions i2c-fake1:root:7:0007",
		subsys		=> "i2c-dev",
		devpath		=> "/class/i2c-dev/i2c-fake1",
		exp_name	=> "i2c-fake1",
		exp_perms	=> "0:7:0007",
		conf		=> <<EOF
KERNEL="i2c-fake1", NAME="i2c-fake1"
EOF
	},
	{
		desc		=> "permissions ttyS[01]:0:5:0700",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyS1",
		exp_name	=> "ttyS1",
		exp_perms	=> "0:5:0700",
		conf		=> <<EOF
KERNEL="ttyS1", NAME="ttyS1"
EOF
	},
	{
		desc		=> "permissions ttyS[4-9]:tty:5:0060",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyS7",
		exp_name	=> "ttyS7",
		exp_perms	=> "0:5:0060",
		conf		=> <<EOF
KERNEL="ttyS7", NAME="ttyS7"
EOF
	},
	{
		desc		=> "permissions tty4:0:5:0707",
		subsys		=> "ttyS4",
		devpath		=> "/class/tty/tty4",
		exp_name	=> "tty4",
		exp_perms	=> "0:5:0707",
		conf		=> <<EOF
KERNEL="tty4", NAME="tty4"
EOF
	},
	{
		desc		=> "permissions tty4?:0:5:0007",
		subsys		=> "tty",
		devpath		=> "/class/tty/tty44",
		exp_name	=> "tty44",
		exp_perms	=> "0:5:0007",
		conf		=> <<EOF
KERNEL="tty44", NAME="tty44"
EOF
	},
	{
		desc		=> "permissions tty3[!3]:::0467",
		subsys		=> "tty",
		devpath		=> "/class/tty/tty35",
		exp_name	=> "tty35",
		exp_perms	=> "0:0:0467",
		conf		=> <<EOF
KERNEL="tty35", NAME="tty35"
EOF
	},
	{
		desc		=> "permissions tty33:bad:name:0500",
		subsys		=> "tty",
		devpath		=> "/class/tty/tty33",
		exp_name	=> "tty33",
		exp_perms	=> "0:0:0500",
		conf		=> <<EOF
KERNEL="tty33", NAME="tty33"
EOF
	},
	{
		desc		=> "permissions rtc:0:users:0600",
		subsys		=> "misc",
		devpath		=> "/class/misc/rtc",
		exp_name	=> "misc/rtc",
		exp_perms	=> "0:100:0600",
		conf		=> <<EOF
KERNEL="rtc", NAME="misc/rtc"
EOF
	},
	{
		desc		=> "permissions misc:0:users:0600",
		subsys		=> "misc",
		devpath		=> "/class/misc/psaux",
		exp_name	=> "misc/psaux",
		exp_perms	=> "0:100:0600",
		conf		=> <<EOF
KERNEL="psaux", NAME="misc/psaux"
EOF
	},
	{
		desc		=> "permissions set OWNER=5000",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "node",
		exp_perms	=> "5000::0600",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", NAME="node", OWNER="5000"
EOF
	},
	{
		desc		=> "permissions set GROUP=100",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "node",
		exp_perms	=> ":100:0600",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", NAME="node", GROUP="100"
EOF
	},
	{
		desc		=> "permissions set mode=0777",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "node",
		exp_perms	=> "::0777",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", NAME="node", MODE="0777"
EOF
	},
	{
		desc		=> "permissions set OWNER=5000 GROUP=100 MODE=0777",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "node",
		exp_perms	=> "5000:100:0777",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", NAME="node", OWNER="5000", GROUP="100", MODE="0777"
EOF
	},
	{
		desc		=> "permissions override OWNER to 5000",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "ttyUSB0",
		exp_perms	=> "5000:14:0660",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", OWNER="5000"
EOF
	},
	{
		desc		=> "permissions override GROUP to 100",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "ttyUSB0",
		exp_perms	=> ":100:0660",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", GROUP="100"
EOF
	},
	{
		desc		=> "permissions override MODE to 0060",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "ttyUSB0",
		exp_perms	=> ":14:0060",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", MODE="0060"
EOF
	},
	{
		desc		=> "permissions override OWNER, GROUP, MODE",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "ttyUSB0",
		exp_perms	=> "5000:100:0777",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", OWNER="5000", GROUP="100", MODE="0777"
EOF
	},
	{
		desc		=> "major/minor number test",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "node",
		exp_majorminor	=> "8:0",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", NAME="node"
EOF
	},
	{
		desc		=> "big minor number test",
		subsys		=> "i2c-dev",
		devpath		=> "/class/i2c-dev/i2c-300",
		exp_name	=> "node",
		exp_majorminor	=> "89:300",
		conf		=> <<EOF
KERNEL="i2c-300", NAME="node"
EOF
	},
	{
		desc		=> "big major number test",
		subsys		=> "i2c-dev",
		devpath		=> "/class/i2c-dev/i2c-fake1",
		exp_name	=> "node",
		exp_majorminor	=> "4095:1",
		conf		=> <<EOF
KERNEL="i2c-fake1", NAME="node"
EOF
	},
	{
		desc		=> "big major and big minor number test",
		subsys		=> "i2c-dev",
		devpath		=> "/class/i2c-dev/i2c-fake2",
		exp_name	=> "node",
		exp_majorminor	=> "4094:89999",
		conf		=> <<EOF
KERNEL="i2c-fake2", NAME="node"
EOF
	},
	{
		desc		=> "symlink creation (same directory)",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "visor0",
		exp_target	=> "ttyUSB0",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", SYMLINK="visor%n"
EOF
	},
	{
		desc		=> "symlink creation (relative link forward)",
		subsys		=> "block",
		devpath		=> "/block/sda/sda2",
		exp_name	=> "1/2/symlink" ,
		exp_target	=> "a/b/node",
		conf		=> <<EOF
BUS="scsi", SYSFS{vendor}="IBM-ESXS", NAME="1/2/a/b/node", SYMLINK="1/2/symlink"
EOF
	},
	{
		desc		=> "symlink creation (relative link back and forward)",
		subsys		=> "block",
		devpath		=> "/block/sda/sda2",
		exp_name	=> "1/2/c/d/symlink" ,
		exp_target	=> "../../a/b/node",
		conf		=> <<EOF
BUS="scsi", SYSFS{vendor}="IBM-ESXS", NAME="1/2/a/b/node", SYMLINK="1/2/c/d/symlink"
EOF
	},
	{
		desc		=> "multiple symlinks",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "second-0" ,
		exp_target	=> "visor" ,
		conf		=> <<EOF
KERNEL="ttyUSB0", NAME="visor", SYMLINK="first-%n second-%n third-%n"
EOF
	},
	{
		desc		=> "symlink only rule",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "symlink-only2",
		exp_target	=> "link",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", SYMLINK="symlink-only1"
BUS="scsi", KERNEL="sda", SYMLINK="symlink-only2"
BUS="scsi", KERNEL="sda", NAME="link", SYMLINK="symlink0"
EOF
	},
	{
		desc		=> "symlink name empty",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "",
		exp_target	=> "link",
		exp_error	=> "yes",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", NAME="link", SYMLINK=""
EOF
	},
	{
		desc		=> "symlink name '.'",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> ".",
		exp_target	=> "link",
		exp_error	=> "yes",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", NAME="link", SYMLINK="."
EOF
	},
	{
		desc		=> "symlink to empty name",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "symlink",
		exp_target	=> "",
		exp_error	=> "yes",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", NAME="", SYMLINK="symlink"
EOF
	},
	{
		desc		=> "symlink and name empty",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "",
		exp_target	=> "",
		exp_error	=> "yes",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", NAME="", SYMLINK=""
EOF
	},
	{
		desc		=> "symlink node to itself",
		subsys		=> "tty",
		devpath		=> "/class/tty/tty0",
		exp_name	=> "link",
		exp_target	=> "link",
		conf		=> <<EOF
KERNEL="tty0", NAME="link", SYMLINK="link"
EOF
	},
	{
		desc		=> "symlink %n substitution",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "symlink0",
		exp_target	=> "ttyUSB0",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", SYMLINK="symlink%n"
EOF
	},
	{
		desc		=> "symlink %k substitution",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "symlink-ttyUSB0",
		exp_target	=> "ttyUSB0",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", SYMLINK="symlink-%k"
EOF
	},
	{
		desc		=> "symlink %M:%m substitution",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "major-188:0",
		exp_target	=> "ttyUSB0",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", SYMLINK="major-%M:%m"
EOF
	},
	{
		desc		=> "symlink %b substitution",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "symlink-0:0:0:0",
		exp_target	=> "node",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", NAME="node", SYMLINK="symlink-%b"
EOF
	},
	{
		desc		=> "symlink %c substitution",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "test",
		exp_target	=> "ttyUSB0",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", PROGRAM="/bin/echo test" NAME="ttyUSB%n", SYMLINK="%c"
EOF
	},
	{
		desc		=> "symlink %c{N} substitution",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "test",
		exp_target	=> "ttyUSB0",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", PROGRAM="/bin/echo symlink test this" NAME="ttyUSB%n", SYMLINK="%c{2}"
EOF
	},
	{
		desc		=> "symlink %c{N+} substitution",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "this",
		exp_target	=> "ttyUSB0",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", PROGRAM="/bin/echo symlink test this" NAME="ttyUSB%n", SYMLINK="%c{2+}"
EOF
	},
	{
		desc		=> "symlink only rule with %c{N+}",
		subsys		=> "block",
		devpath		=> "/block/sda",
		exp_name	=> "test",
		exp_target	=> "link",
		conf		=> <<EOF
BUS="scsi", KERNEL="sda", PROGRAM="/bin/echo link test this" SYMLINK="%c{2+}"
BUS="scsi", KERNEL="sda", NAME="link", SYMLINK="symlink0"
EOF
	},
	{
		desc		=> "symlink %s{filename} substitution",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "188:0",
		exp_target	=> "ttyUSB0",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", SYMLINK="%s{dev}"
EOF
	},
	{
		desc		=> "symlink %Ns{filename} substitution",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "188",
		exp_target	=> "ttyUSB0",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", SYMLINK="%3s{dev}"
EOF
	},
	{
		desc		=> "symlink with '%' in name",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "percent%sign",
		exp_target	=> "ttyUSB0",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", SYMLINK="percent%%sign"
EOF
	},
	{
		desc		=> "symlink with '%' in name",
		subsys		=> "tty",
		devpath		=> "/class/tty/ttyUSB0",
		exp_name	=> "%ttyUSB0_name",
		exp_target	=> "ttyUSB0",
		conf		=> <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", SYMLINK="%%%k_name"
EOF
	},
	{
		desc		=> "program result substitution (numbered part of)",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "link1",
		exp_target	=> "node",
		conf		=> <<EOF
BUS="scsi", PROGRAM="/bin/echo -n node link1 link2", RESULT="node *", NAME="%c{1}", SYMLINK="%c{2} %c{3}"
EOF
	},
	{
		desc		=> "program result substitution (numbered part of+)",
		subsys		=> "block",
		devpath		=> "/block/sda/sda3",
		exp_name	=> "link4",
		exp_target	=> "node",
		conf		=> <<EOF
BUS="scsi", PROGRAM="/bin/echo -n node link1 link2 link3 link4", RESULT="node *", NAME="%c{1}", SYMLINK="%c{2+}"
EOF
	},
);

# set env
$ENV{UDEV_TEST} = "yes";
$ENV{SYSFS_PATH} = $sysfs;
$ENV{UDEV_CONFIG_FILE} = $main_conf;
$ENV{UDEV_NO_SLEEP} = "yes";
$ENV{UDEV_NO_DEVD} = "yes";


sub udev {
	my ($action, $subsys, $devpath, $config) = @_;

	$ENV{DEVPATH} = $devpath;

	# create temporary config
	open CONF, ">$conf_tmp" || die "unable to create config file: $conf_tmp";
	print CONF $$config;
	close CONF;

	$ENV{ACTION} = $action;
	system("$udev_bin $subsys");
}

my $error = 0;

sub permissions_test {
	my($config, $uid, $gid, $mode) = @_;

	my $wrong = 0;
	$config->{exp_perms} =~ m/^(.*):(.*):(.*)$/;
	if ($1 ne "") {
		if ($uid != $1) { $wrong = 1; };
	}
	if ($2 ne "") {
		if ($gid != $2) { $wrong = 1; };
	}
	if ($3 ne "") {
		if (($mode & 07777) != oct($3)) { $wrong = 1; };
	}
	if ($wrong == 0) {
		print "permissions: ok    ";
	} else {
		printf "expected permissions are: %i:%i:%#o\n", $1, $2, oct($3);
		printf "created permissions are : %i:%i:%#o\n", $uid, $gid, $mode & 07777;
		$error++;
	}
}

sub major_minor_test {
	my($config, $rdev) = @_;

	my $major = ($rdev >> 8) & 0xfff;
	my $minor = ($rdev & 0xff) | (($rdev >> 12) & 0xfff00);
	my $wrong = 0;

	$config->{exp_majorminor} =~ m/^(.*):(.*)$/;
	if ($1 ne "") {
		if ($major != $1) { $wrong = 1; };
	}
	if ($2 ne "") {
		if ($minor != $2) { $wrong = 1; };
	}
	if ($wrong == 0) {
		print "major:minor: ok    ";
	} else {
		printf "expected major:minor is: %i:%i\n", $1, $2;
		printf "created major:minor is : %i:%i\n", $major, $minor;
		print "major:minor: error    ";
		$error++;
	}
}

sub symlink_test {
	my ($config) = @_;

	my $output = `ls -l $PWD/$udev_root$config->{exp_name}`;

	if ($output =~ m/(.*)-> (.*)/) {
		if ($2 eq $config->{exp_target}) {
			print "symlink: ok    ";
		} else {
			print "expected symlink from: \'$config->{exp_name}\' to \'$config->{exp_target}\'\n";
			print "created symlink from: \'$config->{exp_name}\' to \'$2\'\n";
			if ($config->{exp_error}) {
				print "as expected    ";
			} else {
				$error++;
			}
		}
	} else {
		print "expected symlink from: \'$config->{exp_name}\' to \'$config->{exp_target}\'\n";
		print "symlink: not created ";
		if ($config->{exp_error}) {
			print "as expected    ";
		} else {
			$error++;
		}
	}
}

sub run_test {
	my ($config, $number) = @_;

	print "TEST $number: $config->{desc}\n";

	if ($config->{exp_target}) {
		print "device \'$config->{devpath}\' expecting symlink '$config->{exp_name}' to node \'$config->{exp_target}\'\n";
	} else {
		print "device \'$config->{devpath}\' expecting node \'$config->{exp_name}\'\n";
	}


	udev("add", $config->{subsys}, $config->{devpath}, \$config->{conf});

	if ((-e "$PWD/$udev_root$config->{exp_name}") ||
	    (-l "$PWD/$udev_root$config->{exp_name}")) {

		my ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size,
		    $atime, $mtime, $ctime, $blksize, $blocks) = stat("$PWD/$udev_root$config->{exp_name}");

		if (defined($config->{exp_perms})) {
			permissions_test($config, $uid, $gid, $mode);
		}
		if (defined($config->{exp_majorminor})) {
			major_minor_test($config, $rdev);
		}
		if (defined($config->{exp_target})) {
			symlink_test($config);
		}
		print "add: ok    ";
	} else {
		print "add: error ";
		if ($config->{exp_error}) {
			print "as expected    ";
		} else {
			print "\n\n";
			system("tree $udev_root");
			print "\n";
			$error++;
		}
	}

	udev("remove", $config->{subsys}, $config->{devpath}, \$config->{conf});
	if ((-e "$PWD/$udev_root$config->{exp_name}") ||
	    (-l "$PWD/$udev_root$config->{exp_name}")) {
		print "remove: error ";
		if ($config->{exp_error}) {
			print "as expected\n\n";
		} else {
			print "\n\n";
			system("tree $udev_root");
			print "\n";
			$error++;
		}
	} else {
		print "remove: ok\n\n";
	}
}

# prepare
system("rm -rf $udev_root");
mkdir($udev_root) || die "unable to create udev_root: $udev_root\n";

# create initial config file
open CONF, ">$main_conf" || die "unable to create config file: $main_conf";
print CONF "udev_root=\"$udev_root\"\n";
print CONF "udev_db=\"$udev_db\"\n";
print CONF "udev_rules=\"$conf_tmp\"\n";
print CONF "udev_permissions=\"$perm\"\n";
close CONF;

my $test_num = 1;

if ($ARGV[0]) {
	# only run one test
	$test_num = $ARGV[0];
	print "udev-test will run test number $test_num only\n";

	run_test($tests[$test_num-1], $test_num);
} else {
	# test all
	print "\nudev-test will run ".($#tests + 1)." tests:\n\n";

	foreach my $config (@tests) {
		run_test($config, $test_num);
		$test_num++;

	}
}

print "$error errors occured\n\n";

# cleanup
unlink($udev_db);
system("rm -rf $udev_root");
unlink($conf_tmp);
unlink($main_conf);