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systemd/test/udev-test.pl

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#!/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
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",
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 => "program result substitution (numbered part of)",
subsys => "block",
devpath => "block/sda/sda3",
exp_name => "link1" ,
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 => "link3" ,
conf => <<EOF
BUS="scsi", PROGRAM="/bin/echo -n node link1 link2 link3 link4", RESULT="node *", NAME="%c{1}", SYMLINK="%c{2+}"
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 => "symlink creation (same directory)",
subsys => "tty",
devpath => "class/tty/ttyUSB0",
exp_name => "visor0" ,
conf => <<EOF
KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", SYMLINK="visor%n"
EOF
},
{
desc => "symlink creation (relative link back)",
subsys => "block",
devpath => "block/sda/sda2",
exp_name => "1/2/a/b/symlink" ,
conf => <<EOF
BUS="scsi", SYSFS{vendor}="IBM-ESXS", NAME="1/2/node", SYMLINK="1/2/a/b/symlink"
EOF
},
{
desc => "symlink creation (relative link forward)",
subsys => "block",
devpath => "block/sda/sda2",
exp_name => "1/2/symlink" ,
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" ,
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" ,
conf => <<EOF
KERNEL="ttyUSB0", NAME="visor", SYMLINK="first-%n second-%n third-%n"
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 => "SYMLINK only rule",
subsys => "block",
devpath => "block/sda",
exp_name => "symlink-only2",
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 => "permissions test",
subsys => "block",
devpath => "block/sda",
exp_name => "node",
perms => "5000::0444",
conf => <<EOF
BUS="scsi", KERNEL="sda", NAME="node", OWNER="5000", MODE="0444"
EOF
},
{
desc => "major/minor number test",
subsys => "block",
devpath => "block/sda",
exp_name => "node",
perms => "5000::0444",
exp_majorminor => "8:0",
conf => <<EOF
BUS="scsi", KERNEL="sda", NAME="node", OWNER="5000", MODE="0444"
EOF
},
);
# set env
$ENV{UDEV_TEST} = "yes";
$ENV{SYSFS_PATH} = $sysfs;
$ENV{UDEV_CONFIG_FILE} = $main_conf;
sub udev {
my ($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 $error = 0;
sub run_test {
my ($config, $number) = @_;
print "TEST $number: $config->{desc}\n";
print "device \'$config->{devpath}\' expecting node \'$config->{exp_name}\'\n";
udev("add", $config->{subsys}, $config->{devpath}, \$config->{conf});
if (-e "$PWD/$udev_root$config->{exp_name}") {
my ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size,
$atime, $mtime, $ctime, $blksize, $blocks) = stat("$PWD/$udev_root$config->{exp_name}");
if (defined($config->{perms})) {
my $wrong = 0;
$config->{perms} =~ m/^(.*):(.*):(.*)$/;
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 == 1) {
printf "expected permissions are: %i:%i:%#o\n", $1, $2, oct($3);
printf "created permissions are : %i:%i:%#o\n", $uid, $gid, $mode & 07777;
$error++;
}
}
if (defined($config->{exp_majorminor})) {
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 == 1) {
printf "expected major:minor is: %i:%i\n", $1, $2;
printf "created major:minor is : %i:%i\n", $major, $minor;
$error++;
}
}
print "add: ok ";
} else {
print "add: error\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\n\n";
system("tree $udev_root");
$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);
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