test/udev-test.pl

   1 #!/usr/bin/perl
   2
   3 # udev-test
   4 #
   5 # Provides automated testing of the udev binary.
   6 # The whole test is self contained in this file, except the matching sysfs tree.
   7 # Simply extend the @tests array, to add a new test variant.
   8 #
   9 # Every test is driven by its own temporary config file.
  10 # This program prepares the environment, creates the config and calls udev.
  11 #
  12 # udev reads the config, looks at the provided sysfs and
  13 # first creates and then removes the device node.
  14 # After creation and removal the result is checked against the
  15 # expected value and the result is printed.
  16 #
  17 # happy testing,
  18 # Kay Sievers <kay.sievers@vrfy.org>, 2003
  19
  20
  21 use warnings;
  22 use strict;
  23
  24 my $PWD = $ENV{PWD};
  25 my $sysfs     = "sys/";
  26 my $udev_bin  = "../udev";
  27 my $udev_root = "udev-root/"; # !!! directory will be removed !!!
  28 my $udev_db   = ".udev.tdb";
  29 my $perm      = "udev.permissions";
  30 my $main_conf = "udev-test.conf";
  31 my $conf_tmp  = "udev-test.rules";
  32
  33
  34 my @tests = (
  35         {
  36                 desc     => "label test of scsi disc",
  37                 subsys   => "block",
  38                 devpath  => "block/sda",
  39                 expected => "boot_disk" ,
  40                 conf     => <<EOF
  41 BUS="scsi", SYSFS_vendor="IBM-ESXS", NAME="boot_disk%n"
  42 KERNEL="ttyUSB0", NAME="visor"
  43 EOF
  44         },
  45         {
  46                 desc     => "label test of scsi partition",
  47                 subsys   => "block",
  48                 devpath  => "block/sda/sda1",
  49                 expected => "boot_disk1" ,
  50                 conf     => <<EOF
  51 BUS="scsi", SYSFS_vendor="IBM-ESXS", NAME="boot_disk%n"
  52 EOF
  53         },
  54         {
  55                 desc     => "label test of pattern match",
  56                 subsys   => "block",
  57                 devpath  => "block/sda/sda1",
  58                 expected => "boot_disk1" ,
  59                 conf     => <<EOF
  60 BUS="scsi", SYSFS_vendor="?IBM-ESXS", NAME="boot_disk%n-1"
  61 BUS="scsi", SYSFS_vendor="IBM-ESXS?", NAME="boot_disk%n-2"
  62 BUS="scsi", SYSFS_vendor="IBM-ES??", NAME="boot_disk%n"
  63 BUS="scsi", SYSFS_vendor="IBM-ESXSS", NAME="boot_disk%n-3"
  64 EOF
  65         },
  66         {
  67                 desc     => "label test of multiple sysfs files",
  68                 subsys   => "block",
  69                 devpath  => "block/sda/sda1",
  70                 expected => "boot_disk1" ,
  71                 conf     => <<EOF
  72 BUS="scsi", SYSFS_vendor="IBM-ESXS", SYSFS_model="ST336605LW   !#", NAME="boot_diskX%n"
  73 BUS="scsi", SYSFS_vendor="IBM-ESXS", SYSFS_model="ST336605LW    !#", NAME="boot_disk%n"
  74 EOF
  75         },
  76         {
  77                 desc     => "label test of max sysfs files",
  78                 subsys   => "block",
  79                 devpath  => "block/sda/sda1",
  80                 expected => "boot_disk1" ,
  81                 conf     => <<EOF
  82 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"
  83 BUS="scsi", SYSFS_vendor="IBM-ESXS", SYSFS_model="ST336605LW    !#", SYSFS_scsi_level="4", SYSFS_rev="B245", SYSFS_type="0", NAME="boot_disk%n"
  84 EOF
  85         },
  86         {
  87                 desc     => "catch device by *",
  88                 subsys   => "tty",
  89                 devpath  => "class/tty/ttyUSB0",
  90                 expected => "visor/0" ,
  91                 conf     => <<EOF
  92 KERNEL="ttyUSB*", NAME="visor/%n"
  93 EOF
  94         },
  95         {
  96                 desc     => "catch device by * - take 2",
  97                 subsys   => "tty",
  98                 devpath  => "class/tty/ttyUSB0",
  99                 expected => "visor/0" ,
 100                 conf     => <<EOF
 101 KERNEL="*USB1", NAME="bad"
 102 KERNEL="*USB0", NAME="visor/%n"
 103 EOF
 104         },
 105         {
 106                 desc     => "catch device by ?",
 107                 subsys   => "tty",
 108                 devpath  => "class/tty/ttyUSB0",
 109                 expected => "visor/0" ,
 110                 conf     => <<EOF
 111 KERNEL="ttyUSB??*", NAME="visor/%n-1"
 112 KERNEL="ttyUSB??", NAME="visor/%n-2"
 113 KERNEL="ttyUSB?", NAME="visor/%n"
 114 EOF
 115         },
 116         {
 117                 desc     => "catch device by character class",
 118                 subsys   => "tty",
 119                 devpath  => "class/tty/ttyUSB0",
 120                 expected => "visor/0" ,
 121                 conf     => <<EOF
 122 KERNEL="ttyUSB[A-Z]*", NAME="visor/%n-1"
 123 KERNEL="ttyUSB?[0-9]", NAME="visor/%n-2"
 124 KERNEL="ttyUSB[0-9]*", NAME="visor/%n"
 125 EOF
 126         },
 127         {
 128                 desc     => "replace kernel name",
 129                 subsys   => "tty",
 130                 devpath  => "class/tty/ttyUSB0",
 131                 expected => "visor" ,
 132                 conf     => <<EOF
 133 KERNEL="ttyUSB0", NAME="visor"
 134 EOF
 135         },
 136         {
 137                 desc     => "Handle comment lines in config file (and replace kernel name)",
 138                 subsys   => "tty",
 139                 devpath  => "class/tty/ttyUSB0",
 140                 expected => "visor" ,
 141                 conf     => <<EOF
 142 # this is a comment
 143 KERNEL="ttyUSB0", NAME="visor"
 144
 145 EOF
 146         },
 147         {
 148                 desc     => "Handle comment lines in config file with whitespace (and replace kernel name)",
 149                 subsys   => "tty",
 150                 devpath  => "class/tty/ttyUSB0",
 151                 expected => "visor" ,
 152                 conf     => <<EOF
 153  # this is a comment with whitespace before the comment
 154 KERNEL="ttyUSB0", NAME="visor"
 155
 156 EOF
 157         },
 158         {
 159                 desc     => "Handle empty lines in config file (and replace kernel name)",
 160                 subsys   => "tty",
 161                 devpath  => "class/tty/ttyUSB0",
 162                 expected => "visor" ,
 163                 conf     => <<EOF
 164
 165 KERNEL="ttyUSB0", NAME="visor"
 166
 167 EOF
 168         },
 169         {
 170                 desc     => "subdirectory handling",
 171                 subsys   => "tty",
 172                 devpath  => "class/tty/ttyUSB0",
 173                 expected => "sub/direct/ory/visor" ,
 174                 conf     => <<EOF
 175 KERNEL="ttyUSB0", NAME="sub/direct/ory/visor"
 176 EOF
 177         },
 178         {
 179                 desc     => "place on bus of scsi partition",
 180                 subsys   => "block",
 181                 devpath  => "block/sda/sda3",
 182                 expected => "first_disk3" ,
 183                 conf     => <<EOF
 184 BUS="scsi", PLACE="0:0:0:0", NAME="first_disk%n"
 185 EOF
 186         },
 187         {
 188                 desc     => "test NAME substitution chars",
 189                 subsys   => "block",
 190                 devpath  => "block/sda/sda3",
 191                 expected => "Major:8:minor:3:kernelnumber:3:bus:0:0:0:0" ,
 192                 conf     => <<EOF
 193 BUS="scsi", PLACE="0:0:0:0", NAME="Major:%M:minor:%m:kernelnumber:%n:bus:%b"
 194 EOF
 195         },
 196         {
 197                 desc     => "program result substitution",
 198                 subsys   => "block",
 199                 devpath  => "block/sda/sda3",
 200                 expected => "special-device-3" ,
 201                 conf     => <<EOF
 202 BUS="scsi", PROGRAM="/bin/echo -n special-device", RESULT="-special-*", NAME="%c-1-%n"
 203 BUS="scsi", PROGRAM="/bin/echo -n special-device", RESULT="special--*", NAME="%c-2-%n"
 204 BUS="scsi", PROGRAM="/bin/echo -n special-device", RESULT="special-device-", NAME="%c-3-%n"
 205 BUS="scsi", PROGRAM="/bin/echo -n special-device", RESULT="special-devic", NAME="%c-4-%n"
 206 BUS="scsi", PROGRAM="/bin/echo -n special-device", RESULT="special-*", NAME="%c-%n"
 207 EOF
 208         },
 209         {
 210                 desc     => "program result substitution",
 211                 subsys   => "block",
 212                 devpath  => "block/sda/sda3",
 213                 expected => "test-0:0:0:0" ,
 214                 conf     => <<EOF
 215 BUS="scsi", PROGRAM="/bin/echo -n test-%b", RESULT="test-0:0*", NAME="%c"
 216 EOF
 217         },
 218         {
 219                 desc     => "program with escaped format char (tricky: callout returns format char!)",
 220                 subsys   => "block",
 221                 devpath  => "block/sda/sda3",
 222                 expected => "escape-3" ,
 223                 conf     => <<EOF
 224 BUS="scsi", PROGRAM="/bin/echo -n escape-%%n", KERNEL="sda3", NAME="%c"
 225 EOF
 226         },
 227         {
 228                 desc     => "program result substitution (numbered part of)",
 229                 subsys   => "block",
 230                 devpath  => "block/sda/sda3",
 231                 expected => "link1" ,
 232                 conf     => <<EOF
 233 BUS="scsi", PROGRAM="/bin/echo -n node link1 link2", RESULT="node *", NAME="%1c", SYMLINK="%2c %3c"
 234 EOF
 235         },
 236         {
 237                 desc     => "invalid program for device with no bus",
 238                 subsys   => "tty",
 239                 devpath  => "class/tty/console",
 240                 expected => "TTY" ,
 241                 conf     => <<EOF
 242 BUS="scsi", PROGRAM="/bin/echo -n foo", RESULT="foo", NAME="foo"
 243 KERNEL="console", NAME="TTY"
 244 EOF
 245         },
 246         {
 247                 desc     => "valid program for device with no bus",
 248                 subsys   => "tty",
 249                 devpath  => "class/tty/console",
 250                 expected => "foo" ,
 251                 conf     => <<EOF
 252 PROGRAM="/bin/echo -n foo", RESULT="foo", NAME="foo"
 253 KERNEL="console", NAME="TTY"
 254 EOF
 255         },
 256         {
 257                 desc     => "invalid label for device with no bus",
 258                 subsys   => "tty",
 259                 devpath  => "class/tty/console",
 260                 expected => "TTY" ,
 261                 conf     => <<EOF
 262 BUS="foo", SYSFS_dev="5:1", NAME="foo"
 263 KERNEL="console", NAME="TTY"
 264 EOF
 265         },
 266         {
 267                 desc     => "valid label for device with no bus",
 268                 subsys   => "tty",
 269                 devpath  => "class/tty/console",
 270                 expected => "foo" ,
 271                 conf     => <<EOF
 272 SYSFS_dev="5:1", NAME="foo"
 273 KERNEL="console", NAME="TTY"
 274 EOF
 275         },
 276         {
 277                 desc     => "program and bus type match",
 278                 subsys   => "block",
 279                 devpath  => "block/sda",
 280                 expected => "scsi-0:0:0:0" ,
 281                 conf     => <<EOF
 282 BUS="usb", PROGRAM="/bin/echo -n usb-%b", NAME="%c"
 283 BUS="scsi", PROGRAM="/bin/echo -n scsi-%b", NAME="%c"
 284 BUS="foo", PROGRAM="/bin/echo -n foo-%b", NAME="%c"
 285 EOF
 286         },
 287         {
 288                 desc     => "symlink creation (same directory)",
 289                 subsys   => "tty",
 290                 devpath  => "class/tty/ttyUSB0",
 291                 expected => "visor0" ,
 292                 conf     => <<EOF
 293 KERNEL="ttyUSB[0-9]*", NAME="ttyUSB%n", SYMLINK="visor%n"
 294 EOF
 295         },
 296         {
 297                 desc     => "symlink creation (relative link back)",
 298                 subsys   => "block",
 299                 devpath  => "block/sda/sda2",
 300                 expected => "1/2/a/b/symlink" ,
 301                 conf     => <<EOF
 302 BUS="scsi", SYSFS_vendor="IBM-ESXS", NAME="1/2/node", SYMLINK="1/2/a/b/symlink"
 303 EOF
 304         },
 305         {
 306                 desc     => "symlink creation (relative link forward)",
 307                 subsys   => "block",
 308                 devpath  => "block/sda/sda2",
 309                 expected => "1/2/symlink" ,
 310                 conf     => <<EOF
 311 BUS="scsi", SYSFS_vendor="IBM-ESXS", NAME="1/2/a/b/node", SYMLINK="1/2/symlink"
 312 EOF
 313         },
 314         {
 315                 desc     => "symlink creation (relative link back and forward)",
 316                 subsys   => "block",
 317                 devpath  => "block/sda/sda2",
 318                 expected => "1/2/c/d/symlink" ,
 319                 conf     => <<EOF
 320 BUS="scsi", SYSFS_vendor="IBM-ESXS", NAME="1/2/a/b/node", SYMLINK="1/2/c/d/symlink"
 321 EOF
 322         },
 323         {
 324                 desc     => "multiple symlinks",
 325                 subsys   => "tty",
 326                 devpath  => "class/tty/ttyUSB0",
 327                 expected => "second-0" ,
 328                 conf     => <<EOF
 329 KERNEL="ttyUSB0", NAME="visor", SYMLINK="first-%n second-%n third-%n"
 330 EOF
 331         },
 332         {
 333                 desc     => "sysfs parent heirachy",
 334                 subsys   => "tty",
 335                 devpath  => "class/tty/ttyUSB0",
 336                 expected => "visor" ,
 337                 conf     => <<EOF
 338 SYSFS_idProduct="2008", NAME="visor"
 339 EOF
 340         },
 341         {
 342                 desc     => "name test with ! in the name",
 343                 subsys   => "block",
 344                 devpath  => "block/rd!c0d0",
 345                 expected => "rd/c0d0" ,
 346                 conf     => <<EOF
 347 BUS="scsi", NAME="%k"
 348 KERNEL="ttyUSB0", NAME="visor"
 349 EOF
 350         },
 351         {
 352                 desc     => "name test with ! in the name, but no matching rule",
 353                 subsys   => "block",
 354                 devpath  => "block/rd!c0d0",
 355                 expected => "rd/c0d0" ,
 356                 conf     => <<EOF
 357 KERNEL="ttyUSB0", NAME="visor"
 358 EOF
 359         },
 360 );
 361
 362 # set env
 363 $ENV{UDEV_TEST} = "yes";
 364 $ENV{SYSFS_PATH} = $sysfs;
 365 $ENV{UDEV_CONFIG_FILE} = $main_conf;
 366
 367
 368 sub udev {
 369         my ($action, $subsys, $devpath, $config) = @_;
 370
 371         $ENV{DEVPATH} = $devpath;
 372
 373         # create temporary config
 374         open CONF, ">$conf_tmp" || die "unable to create config file: $conf_tmp";
 375         print CONF $$config;
 376         close CONF;
 377
 378         $ENV{ACTION} = $action;
 379         system("$udev_bin $subsys");
 380 }
 381
 382 my $error = 0;
 383
 384 sub run_test {
 385         my ($config, $number) = @_;
 386
 387         print "TEST $number: $config->{desc}\n";
 388         print "device \'$config->{devpath}\' expecting node \'$config->{expected}\'\n";
 389
 390         udev("add", $config->{subsys}, $config->{devpath}, \$config->{conf});
 391         if (-e "$PWD/$udev_root$config->{expected}") {
 392                 print "add: ok    ";
 393         } else {
 394                 print "add: error\n";
 395                 system("tree $udev_root");
 396                 print "\n";
 397                 $error++;
 398         }
 399
 400         udev("remove", $config->{subsys}, $config->{devpath}, \$config->{conf});
 401         if ((-e "$PWD/$udev_root$config->{expected}") ||
 402             (-l "$PWD/$udev_root$config->{expected}")) {
 403                 print "remove: error\n\n";
 404                 system("tree $udev_root");
 405                 $error++;
 406         } else {
 407                 print "remove: ok\n\n";
 408         }
 409 }
 410
 411 # prepare
 412 system("rm -rf $udev_root");
 413 mkdir($udev_root) || die "unable to create udev_root: $udev_root\n";
 414
 415 # create initial config file
 416 open CONF, ">$main_conf" || die "unable to create config file: $main_conf";
 417 print CONF "udev_root=\"$udev_root\"\n";
 418 print CONF "udev_db=\"$udev_db\"\n";
 419 print CONF "udev_rules=\"$conf_tmp\"\n";
 420 print CONF "udev_permissions=\"$perm\"\n";
 421 close CONF;
 422
 423 my $test_num = 1;
 424
 425 if ($ARGV[0]) {
 426         # only run one test
 427         $test_num = $ARGV[0];
 428         print "udev-test will run test number $test_num only\n";
 429
 430         run_test($tests[$test_num-1], $test_num);
 431 } else {
 432         # test all
 433         print "\nudev-test will run ".($#tests + 1)." tests:\n\n";
 434
 435         foreach my $config (@tests) {
 436                 run_test($config, $test_num);
 437                 $test_num++;
 438
 439         }
 440 }
 441
 442 print "$error errors occured\n\n";
 443
 444 # cleanup
 445 unlink($udev_db);
 446 system("rm -rf $udev_root");
 447 unlink($conf_tmp);
 448 unlink($main_conf);
 449