systemd/test/udev-test.pl

	udev-test.pl revision 77313cd0d13ed3682f25c745f71f648292b28215
#!/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.
#
# Kay Sievers <kay.sievers@vrfy.org>, 2003
# Leann Ogasawara <ogasawara@osdl.org>, 2004

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   = ".udevdb";
my $main_conf = "udev-test.conf";
my $conf_tmp  = "udev-test.rules";

# uncomment following line to run udev with valgrind.
# Should make this a runtime option to the script someday...
#my $udev_bin  = "valgrind --tool=memcheck --leak-check=yes   ../udev";

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 whitespace only lines (and replace kernel name)",
        subsys      => "tty",
        devpath     => "/class/tty/ttyUSB0",
        exp_name    => "whitespace" ,
        conf        => <<EOF


 # this is a comment with whitespace before the comment
KERNEL="ttyUSB0", NAME="whitespace"


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        => "Handle backslashed multi 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        => "preserve backslashes, if they are not for a newline",
        subsys      => "tty",
        devpath     => "/class/tty/ttyUSB0",
        exp_name    => "aaa",
        conf        => <<EOF
KERNEL="ttyUSB0", PROGRAM="/bin/echo -e \\101", RESULT="A", NAME="aaa"
EOF
    },
    {
        desc        => "Handle stupid backslashed multi 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 (no argument should be subsystem)",
        subsys      => "block",
        devpath     => "/block/sda/sda3",
        exp_name    => "subsys_block" ,
        conf        => <<EOF
BUS="scsi", PROGRAM="/bin/echo", RESULT="block", NAME="subsys_block"
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        => "name test with ! in the name for a partition",
        subsys      => "block",
        devpath     => "/block/cciss!c0d0/cciss!c0d0p1",
        exp_name    => "cciss/c0d0p1" ,
        conf        => <<EOF
BUS="scsi", NAME="%k"
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 USER=bad GROUP=name",
        subsys      => "tty",
        devpath     => "/class/tty/tty33",
        exp_name    => "tty33",
        exp_perms   => "0:0:0660",
        conf        => <<EOF
KERNEL="tty33", NAME="tty33", OWNER="bad", GROUP="name"
EOF
    },
    {
        desc        => "permissions OWNER=5000",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "node",
        exp_perms   => "5000::0660",
        conf        => <<EOF
BUS="scsi", KERNEL="sda", NAME="node", OWNER="5000"
EOF
    },
    {
        desc        => "permissions GROUP=100",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "node",
        exp_perms   => ":100:0660",
        conf        => <<EOF
BUS="scsi", KERNEL="sda", NAME="node", GROUP="100"
EOF
    },
    {
        desc        => "permissions 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 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 OWNER to 5000",
        subsys      => "tty",
        devpath     => "/class/tty/ttyUSB0",
        exp_name    => "ttyUSB0",
        exp_perms   => "5000::",
        conf        => <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", OWNER="5000"
EOF
    },
    {
        desc        => "permissions 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 MODE to 0060",
        subsys      => "tty",
        devpath     => "/class/tty/ttyUSB0",
        exp_name    => "ttyUSB0",
        exp_perms   => "::0060",
        conf        => <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", MODE="0060"
EOF
    },
    {
        desc        => "permissions 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        => "permissions only rule",
        subsys      => "tty",
        devpath     => "/class/tty/ttyUSB0",
        exp_name    => "ttyUSB0",
        exp_perms   => "5000:100:0777",
        conf        => <<EOF
KERNEL="ttyUSB[0-9]*", OWNER="5000", GROUP="100", MODE="0777"
KERNEL="ttyUSX[0-9]*", OWNER="5001", GROUP="101", MODE="0444"
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n"
EOF
    },
    {
        desc        => "multiple permissions only rule",
        subsys      => "tty",
        devpath     => "/class/tty/ttyUSB0",
        exp_name    => "ttyUSB0",
        exp_perms   => "3000:4000:0777",
        conf        => <<EOF
SUBSYSTEM="tty", OWNER="3000"
SUBSYSTEM="tty", GROUP="4000"
SUBSYSTEM="tty", MODE="0777"
KERNEL="ttyUSX[0-9]*", OWNER="5001", GROUP="101", MODE="0444"
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n"
EOF
    },
    {
        desc        => "permissions only rule with override at NAME rule",
        subsys      => "tty",
        devpath     => "/class/tty/ttyUSB0",
        exp_name    => "ttyUSB0",
        exp_perms   => "3000:8000:0777",
        conf        => <<EOF
SUBSYSTEM="tty", OWNER="3000"
SUBSYSTEM="tty", GROUP="4000"
SUBSYSTEM="tty", MODE="0777"
KERNEL="ttyUSX[0-9]*", OWNER="5001", GROUP="101", MODE="0444"
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", GROUP="8000"
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        => "multiple symlinks with format char",
        subsys      => "tty",
        devpath     => "/class/tty/ttyUSB0",
        exp_name    => "symlink2-ttyUSB0",
        exp_target  => "ttyUSB0",
        conf        => <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", SYMLINK="symlink1-%n symlink2-%k symlink3-%b"
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 '.'",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => ".",
        exp_target  => "link",
        exp_add_error   => "yes",
        exp_rem_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_add_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_add_error   => "yes",
        exp_rem_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",
        exp_rem_error   => "yes",
        option      => "clear",
        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
    },
    {
        desc        => "enumeration char test (single test)",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "cdrom",
        conf        => <<EOF
KERNEL="sda", NAME="cdrom%e"
EOF
    },
    {
        desc        => "enumeration char test sequence 1/5 (keep)",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "cdrom",
        option      => "keep",
        conf        => <<EOF
KERNEL="sda", NAME="cdrom%e"
EOF
    },
    {
        desc        => "enumeration char test sequence 2/5 (keep)",
        subsys      => "block",
        devpath     => "/block/sda/sda1",
        exp_name    => "enum",
        option      => "keep",
        conf        => <<EOF
KERNEL="sda1", NAME="enum%e"
EOF
    },
    {
        desc        => "enumeration char test sequence 3/5 (keep)",
        subsys      => "block",
        devpath     => "/block/sda/sda2",
        exp_name    => "cdrom1",
        option      => "keep",
        conf        => <<EOF
KERNEL="sda2", NAME="cdrom%e"
EOF
    },
    {
        desc        => "enumeration char test sequence 4/5 (keep)",
        subsys      => "block",
        devpath     => "/block/sda/sda3",
        exp_name    => "enum1",
        option      => "keep",
        conf        => <<EOF
KERNEL="sda3", NAME="enum%e"
EOF
    },
    {
        desc        => "enumeration char test sequence 5/5 (clean)",
        subsys      => "block",
        devpath     => "/block/sda/sda4",
        exp_name    => "cdrom2",
        option      => "clear",
        conf        => <<EOF
KERNEL="sda4", NAME="cdrom%e"
EOF
    },
    {
        desc        => "enumeration char test after cleanup (single test)",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "cdrom",
        conf        => <<EOF
KERNEL="sda", NAME="cdrom%e"
EOF
    },
    {
        desc        => "ignore rule test",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "node",
        exp_add_error   => "yes",
        conf        => <<EOF
BUS="scsi", KERNEL="sda", NAME="node", OPTIONS="ignore"
EOF
    },
    {
        desc        => "all_partitions, option-only rule",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "node6",
        conf        => <<EOF
SUBSYSTEM="block", OPTIONS="all_partitions"
BUS="scsi", KERNEL="sda", NAME="node"
EOF
    },
    {
        desc        => "all_partitions, option-only rule (fail on partition)",
        subsys      => "block",
        devpath     => "/block/sda/sda1",
        exp_name    => "node6",
        exp_add_error   => "yes",
        conf        => <<EOF
SUBSYSTEM="block", OPTIONS="all_partitions"
BUS="scsi", KERNEL="sda", NAME="node"
EOF
    },
    {
        desc        => "ignore remove event test",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "node",
        exp_rem_error   => "yes",
        conf        => <<EOF
BUS="scsi", KERNEL="sda", NAME="node", OPTIONS="ignore_remove"
EOF
    },
    {
        desc        => "ignore remove event test (with all partitions)",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "node14",
        exp_rem_error   => "yes",
        option      => "clear",
        conf        => <<EOF
BUS="scsi", KERNEL="sda", NAME="node", OPTIONS="ignore_remove, all_partitions"
EOF
    },
    {
        desc        => "SUBSYSTEM match test",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "node",
        conf        => <<EOF
BUS="scsi", KERNEL="sda", NAME="should_not_match", SUBSYSTEM="vc"
BUS="scsi", KERNEL="sda", NAME="node", SUBSYSTEM="block"
BUS="scsi", KERNEL="sda", NAME="should_not_match2", SUBSYSTEM="vc"
EOF
    },
    {
        desc        => "DRIVER match test",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "node",
        conf        => <<EOF
BUS="scsi", KERNEL="sda", NAME="should_not_match", DRIVER="sd-wrong"
BUS="scsi", KERNEL="sda", NAME="node", DRIVER="sd"
EOF
    },
    {
        desc        => "temporary node creation test",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "node",
        conf        => <<EOF
BUS="scsi", KERNEL="sda", PROGRAM="/usr/bin/test -b %N" NAME="node"
EOF
    },
    {
        desc        => "devpath substitution test",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "sda",
        conf        => <<EOF
BUS="scsi", KERNEL="sda", PROGRAM="/bin/echo %p", RESULT="/block/sda" NAME="%k"
EOF
    },
    {
        desc        => "parent node name substitution test sequence 1/2 (keep)",
        subsys      => "block",
        devpath     => "/block/sda",
        exp_name    => "main_device",
        option      => "keep",
        conf        => <<EOF
BUS="scsi", KERNEL="sda", NAME="main_device"
EOF
    },
    {
        desc        => "parent node name substitution test sequence 2/2 (clean)",
        subsys      => "block",
        devpath     => "/block/sda/sda1",
        exp_name    => "main_device-part-1",
        option      => "clean",
        conf        => <<EOF
BUS="scsi", KERNEL="sda1", NAME="%P-part-1"
EOF
    },
    {
        desc        => "udev_root substitution",
        subsys      => "block",
        devpath     => "/block/sda/sda1",
        exp_name    => "start-udev-root-end",
        option      => "clean",
        conf        => <<EOF
BUS="scsi", KERNEL="sda1", NAME="start-%r-end"
EOF
    },
);

# set env
$ENV{UDEV_TEST} = "yes";
$ENV{SYSFS_PATH} = $sysfs;
$ENV{UDEV_CONFIG_FILE} = $main_conf;
$ENV{UDEV_NO_DEVD} = "yes";
$ENV{UDEV_NO_HOTPLUGD} = "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_add_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_add_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_add_error}) {
            print "as expected    ";
        } else {
            print "\n\n";
            system("tree $udev_root");
            print "\n";
            $error++;
        }
    }

    if (defined($config->{option}) && $config->{option} eq "keep") {
        print "\n\n";
        return;
    }

    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_rem_error}) {
            print "as expected\n\n";
        } else {
            print "\n\n";
            system("tree $udev_root");
            print "\n";
            $error++;
        }
    } else {
        print "remove: ok\n\n";
    }

    if (defined($config->{option}) && $config->{option} eq "clear") {
        system("rm -rf $udev_db");
        system("rm -rf $udev_root");
        mkdir($udev_root) || die "unable to create udev_root: $udev_root\n";
    }

}

# only run if we have root permissions
# due to mknod restrictions
if (!($<==0)) {
    print "Must have root permissions to run properly.\n";
    exit;
}

# 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";
close CONF;

my $test_num = 1;

if ($ARGV[0]) {
    # only run one test
    $test_num = $ARGV[0];

    if (defined($tests[$test_num-1]->{desc})) {
        print "udev-test will run test number $test_num only:\n\n";
        run_test($tests[$test_num-1], $test_num);
    } else {
        print "test does not exist.\n";
    }
} else {
    # test all
    print "\nudev-test will run ".($#tests + 1)." tests:\n\n";

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

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

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