source/pidl/lib/Parse/Pidl/Wireshark/NDR.pm

   1 ##################################################
   2 # Samba4 NDR parser generator for IDL structures
   3 # Copyright tridge@samba.org 2000-2003
   4 # Copyright tpot@samba.org 2001,2005
   5 # Copyright jelmer@samba.org 2004-2005
   6 # Portions based on idl2eth.c by Ronnie Sahlberg
   7 # released under the GNU GPL
   8
   9 =pod
  10
  11 =head1 NAME
  12
  13 Parse::Pidl::Wireshark::NDR - Parser generator for Wireshark
  14
  15 =cut
  16
  17 package Parse::Pidl::Wireshark::NDR;
  18
  19 use strict;
  20 use Parse::Pidl::Typelist qw(getType);
  21 use Parse::Pidl::Util qw(has_property ParseExpr property_matches make_str);
  22 use Parse::Pidl::NDR qw(ContainsString GetNextLevel);
  23 use Parse::Pidl::Dump qw(DumpTypedef DumpFunction);
  24 use Parse::Pidl::Wireshark::Conformance qw(ReadConformance);
  25 use File::Basename;
  26
  27 use vars qw($VERSION);
  28 $VERSION = '0.01';
  29
  30 sub error($$)
  31 {
  32         my ($e,$t) = @_;
  33         print "$e->{FILE}:$e->{LINE}: $t\n";
  34 }
  35
  36 my @ett;
  37
  38 my %hf_used = ();
  39 my %return_types = ();
  40 my %dissector_used = ();
  41
  42 my $conformance = undef;
  43
  44 my %ptrtype_mappings = (
  45         "unique" => "NDR_POINTER_UNIQUE",
  46         "ref" => "NDR_POINTER_REF",
  47         "ptr" => "NDR_POINTER_PTR"
  48 );
  49
  50 sub StripPrefixes($)
  51 {
  52         my ($s) = @_;
  53
  54         foreach (@{$conformance->{strip_prefixes}}) {
  55                 $s =~ s/^$_\_//g;
  56         }
  57
  58         return $s;
  59 }
  60
  61 # Convert a IDL structure field name (e.g access_mask) to a prettier
  62 # string like 'Access Mask'.
  63
  64 sub field2name($)
  65 {
  66     my($field) = shift;
  67
  68     $field =~ s/_/ /g;          # Replace underscores with spaces
  69     $field =~ s/(\w+)/\u\L$1/g; # Capitalise each word
  70
  71     return $field;
  72 }
  73
  74 my %res = ();
  75 my $tabs = "";
  76 my $cur_fn = undef;
  77 sub pidl_fn_start($)
  78 {
  79         my $fn = shift;
  80         $cur_fn = $fn;
  81 }
  82 sub pidl_fn_end($)
  83 {
  84         my $fn = shift;
  85         die("Inconsistent state: $fn != $cur_fn") if ($fn ne $cur_fn);
  86         $cur_fn = undef;
  87 }
  88
  89 sub pidl_code($)
  90 {
  91         my $d = shift;
  92         return if (defined($cur_fn) and defined($conformance->{manual}->{$cur_fn}));
  93
  94         if ($d) {
  95                 $res{code} .= $tabs;
  96                 $res{code} .= $d;
  97         }
  98         $res{code} .="\n";
  99 }
 100
 101 sub pidl_hdr($) { my $x = shift; $res{hdr} .= "$x\n"; }
 102 sub pidl_def($) { my $x = shift; $res{def} .= "$x\n"; }
 103
 104 sub indent()
 105 {
 106         $tabs .= "\t";
 107 }
 108
 109 sub deindent()
 110 {
 111         $tabs = substr($tabs, 0, -1);
 112 }
 113
 114 sub PrintIdl($)
 115 {
 116         my $idl = shift;
 117
 118         foreach (split /\n/, $idl) {
 119                 pidl_code "/* IDL: $_ */";
 120         }
 121
 122         pidl_code "";
 123 }
 124
 125 #####################################################################
 126 # parse the interface definitions
 127 sub Interface($)
 128 {
 129         my($interface) = @_;
 130         Const($_,$interface->{NAME}) foreach (@{$interface->{CONSTS}});
 131         Typedef($_,$interface->{NAME}) foreach (@{$interface->{TYPES}});
 132         Function($_,$interface->{NAME}) foreach (@{$interface->{FUNCTIONS}});
 133 }
 134
 135 sub Enum($$$)
 136 {
 137         my ($e,$name,$ifname) = @_;
 138         my $valsstring = "$ifname\_$name\_vals";
 139         my $dissectorname = "$ifname\_dissect\_enum\_".StripPrefixes($name);
 140
 141         return if (defined($conformance->{noemit}->{StripPrefixes($name)}));
 142
 143         foreach (@{$e->{ELEMENTS}}) {
 144                 if (/([^=]*)=(.*)/) {
 145                         pidl_hdr "#define $1 ($2)";
 146                 }
 147         }
 148
 149         pidl_hdr "extern const value_string $valsstring\[];";
 150         pidl_hdr "int $dissectorname(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep, int hf_index, guint32 *param);";
 151
 152         pidl_def "const value_string ".$valsstring."[] = {";
 153         foreach (@{$e->{ELEMENTS}}) {
 154                 next unless (/([^=]*)=(.*)/);
 155                 pidl_def "\t{ $1, \"$1\" },";
 156         }
 157
 158         pidl_def "{ 0, NULL }";
 159         pidl_def "};";
 160
 161         pidl_fn_start $dissectorname;
 162         pidl_code "int";
 163         pidl_code "$dissectorname(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep, int hf_index, guint32 *param)";
 164         pidl_code "{";
 165         indent;
 166         pidl_code "offset = dissect_ndr_$e->{BASE_TYPE}(tvb, offset, pinfo, tree, drep, hf_index, param);";
 167         pidl_code "return offset;";
 168         deindent;
 169         pidl_code "}\n";
 170         pidl_fn_end $dissectorname;
 171
 172         my $enum_size = $e->{BASE_TYPE};
 173         $enum_size =~ s/uint//g;
 174         register_type($name, "offset = $dissectorname(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);", "FT_UINT$enum_size", "BASE_DEC", "0", "VALS($valsstring)", $enum_size / 8);
 175 }
 176
 177 sub Bitmap($$$)
 178 {
 179         my ($e,$name,$ifname) = @_;
 180         my $dissectorname = "$ifname\_dissect\_bitmap\_".StripPrefixes($name);
 181
 182         register_ett("ett_$ifname\_$name");
 183
 184         pidl_hdr "int $dissectorname(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep, int hf_index, guint32 param);";
 185
 186         pidl_fn_start $dissectorname;
 187         pidl_code "int";
 188         pidl_code "$dissectorname(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *parent_tree, guint8 *drep, int hf_index, guint32 param _U_)";
 189         pidl_code "{";
 190         indent;
 191         pidl_code "proto_item *item = NULL;";
 192         pidl_code "proto_tree *tree = NULL;";
 193         pidl_code "";
 194
 195         pidl_code "g$e->{BASE_TYPE} flags;";
 196         if ($e->{ALIGN} > 1) {
 197                 pidl_code "ALIGN_TO_$e->{ALIGN}_BYTES;";
 198         }
 199
 200         pidl_code "";
 201
 202         pidl_code "if (parent_tree) {";
 203         indent;
 204         pidl_code "item = proto_tree_add_item(parent_tree, hf_index, tvb, offset, $e->{ALIGN}, TRUE);";
 205         pidl_code "tree = proto_item_add_subtree(item,ett_$ifname\_$name);";
 206         deindent;
 207         pidl_code "}\n";
 208
 209         pidl_code "offset = dissect_ndr_$e->{BASE_TYPE}(tvb, offset, pinfo, NULL, drep, -1, &flags);";
 210
 211         pidl_code "proto_item_append_text(item, \": \");\n";
 212         pidl_code "if (!flags)";
 213         pidl_code "\tproto_item_append_text(item, \"(No values set)\");\n";
 214
 215         foreach (@{$e->{ELEMENTS}}) {
 216                 next unless (/([^ ]*) (.*)/);
 217                 my ($en,$ev) = ($1,$2);
 218                 my $hf_bitname = "hf_$ifname\_$name\_$en";
 219                 my $filtername = "$ifname\.$name\.$en";
 220
 221                 $hf_used{$hf_bitname} = 1;
 222
 223                 register_hf_field($hf_bitname, field2name($en), $filtername, "FT_BOOLEAN", $e->{ALIGN} * 8, "TFS(&$name\_$en\_tfs)", $ev, "");
 224
 225                 pidl_def "static const true_false_string $name\_$en\_tfs = {";
 226                 if (defined($conformance->{tfs}->{$hf_bitname})) {
 227                         pidl_def "   $conformance->{tfs}->{$hf_bitname}->{TRUE_STRING},";
 228                         pidl_def "   $conformance->{tfs}->{$hf_bitname}->{FALSE_STRING},";
 229                         $conformance->{tfs}->{$hf_bitname}->{USED} = 1;
 230                 } else {
 231                         pidl_def "   \"$en is SET\",";
 232                         pidl_def "   \"$en is NOT SET\",";
 233                 }
 234                 pidl_def "};";
 235
 236                 pidl_code "proto_tree_add_boolean(tree, $hf_bitname, tvb, offset-$e->{ALIGN}, $e->{ALIGN}, flags);";
 237                 pidl_code "if (flags&$ev){";
 238                 pidl_code "\tproto_item_append_text(item, \"$en\");";
 239                 pidl_code "\tif (flags & (~$ev))";
 240                 pidl_code "\t\tproto_item_append_text(item, \", \");";
 241                 pidl_code "}";
 242                 pidl_code "flags&=(~$ev);";
 243                 pidl_code "";
 244         }
 245
 246         pidl_code "if (flags) {";
 247         pidl_code "\tproto_item_append_text(item, \"Unknown bitmap value 0x%x\", flags);";
 248         pidl_code "}\n";
 249         pidl_code "return offset;";
 250         deindent;
 251         pidl_code "}\n";
 252         pidl_fn_end $dissectorname;
 253
 254         my $size = $e->{BASE_TYPE};
 255         $size =~ s/uint//g;
 256         register_type($name, "offset = $dissectorname(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);", "FT_UINT$size", "BASE_HEX", "0", "NULL", $size/8);
 257 }
 258
 259 sub ElementLevel($$$$$$)
 260 {
 261         my ($e,$l,$hf,$myname,$pn,$ifname) = @_;
 262
 263         my $param = 0;
 264
 265         if (defined($conformance->{dissectorparams}->{$myname})) {
 266 #               $conformance->{dissectorparams}->{$myname}->{PARAM} = 1;
 267                 $param = $conformance->{dissectorparams}->{$myname}->{PARAM};
 268         }
 269
 270         if ($l->{TYPE} eq "POINTER") {
 271                 my $type;
 272                 if ($l->{LEVEL} eq "TOP") {
 273                         $type = "toplevel";
 274                 } elsif ($l->{LEVEL} eq "EMBEDDED") {
 275                         $type = "embedded";
 276                 }
 277                 pidl_code "offset = dissect_ndr_$type\_pointer(tvb, offset, pinfo, tree, drep, $myname\_, $ptrtype_mappings{$l->{POINTER_TYPE}}, \"Pointer to ".field2name(StripPrefixes($e->{NAME})) . " ($e->{TYPE})\",$hf);";
 278         } elsif ($l->{TYPE} eq "ARRAY") {
 279                 if ($l->{IS_INLINE}) {
 280                         error($e->{ORIGINAL}, "Inline arrays not supported");
 281                 } elsif ($l->{IS_FIXED}) {
 282                         pidl_code "int i;";
 283                         pidl_code "for (i = 0; i < $l->{SIZE_IS}; i++)";
 284                         pidl_code "\toffset = $myname\_(tvb, offset, pinfo, tree, drep);";
 285                 } else {
 286                         my $type = "";
 287                         $type .= "c" if ($l->{IS_CONFORMANT});
 288                         $type .= "v" if ($l->{IS_VARYING});
 289
 290                         unless ($l->{IS_ZERO_TERMINATED}) {
 291                                 pidl_code "offset = dissect_ndr_u" . $type . "array(tvb, offset, pinfo, tree, drep, $myname\_);";
 292                         } else {
 293                                 my $nl = GetNextLevel($e,$l);
 294                                 pidl_code "char *data;";
 295                                 pidl_code "";
 296                                 pidl_code "offset = dissect_ndr_$type" . "string(tvb, offset, pinfo, tree, drep, sizeof(g$nl->{DATA_TYPE}), $hf, FALSE, &data);";
 297                                 pidl_code "proto_item_append_text(tree, \": %s\", data);";
 298                         }
 299                 }
 300         } elsif ($l->{TYPE} eq "DATA") {
 301                 if ($l->{DATA_TYPE} eq "string") {
 302                         my $bs = 2; # Byte size defaults to that of UCS2
 303
 304
 305                         ($bs = 1) if (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_ASCII.*"));
 306
 307                         if (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_SIZE4.*") and property_matches($e, "flag", ".*LIBNDR_FLAG_STR_LEN4.*")) {
 308                                 pidl_code "char *data;\n";
 309                                 pidl_code "offset = dissect_ndr_cvstring(tvb, offset, pinfo, tree, drep, $bs, $hf, FALSE, &data);";
 310                                 pidl_code "proto_item_append_text(tree, \": %s\", data);";
 311                         } elsif (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_SIZE4.*")) {
 312                                 pidl_code "offset = dissect_ndr_vstring(tvb, offset, pinfo, tree, drep, $bs, $hf, FALSE, NULL);";
 313                         } else {
 314                                 warn("Unable to handle string with flags $e->{PROPERTIES}->{flag}");
 315                         }
 316                 } else {
 317                         my $call;
 318
 319                         if ($conformance->{imports}->{$l->{DATA_TYPE}}) {
 320                                 $call = $conformance->{imports}->{$l->{DATA_TYPE}}->{DATA};
 321                                 $conformance->{imports}->{$l->{DATA_TYPE}}->{USED} = 1;
 322                         } elsif (defined($conformance->{imports}->{"$pn.$e->{NAME}"})) {
 323                                 $call = $conformance->{imports}->{"$pn.$e->{NAME}"}->{DATA};
 324                                 $conformance->{imports}->{"$pn.$e->{NAME}"}->{USED} = 1;
 325
 326                         } elsif (defined($conformance->{types}->{$l->{DATA_TYPE}})) {
 327                                 $call= $conformance->{types}->{$l->{DATA_TYPE}}->{DISSECTOR_NAME};
 328                                 $conformance->{types}->{$l->{DATA_TYPE}}->{USED} = 1;
 329                         } else {
 330                                 pidl_code "offset = $ifname\_dissect_struct_" . $l->{DATA_TYPE} . "(tvb,offset,pinfo,tree,drep,$hf,$param);";
 331
 332                                 return;
 333                         }
 334
 335                         $call =~ s/\@HF\@/$hf/g;
 336                         $call =~ s/\@PARAM\@/$param/g;
 337                         pidl_code "$call";
 338                 }
 339         } elsif ($_->{TYPE} eq "SUBCONTEXT") {
 340                 my $num_bits = ($l->{HEADER_SIZE}*8);
 341                 pidl_code "guint$num_bits size;";
 342                 pidl_code "int start_offset = offset;";
 343                 pidl_code "tvbuff_t *subtvb;";
 344                 pidl_code "offset = dissect_ndr_uint$num_bits(tvb, offset, pinfo, tree, drep, $hf, &size);";
 345                 pidl_code "proto_tree_add_text(tree, tvb, start_offset, offset - start_offset + size, \"Subcontext size\");";
 346
 347                 pidl_code "subtvb = tvb_new_subset(tvb, offset, size, -1);";
 348                 pidl_code "$myname\_(subtvb, 0, pinfo, tree, drep);";
 349         } else {
 350                 die("Unknown type `$_->{TYPE}'");
 351         }
 352 }
 353
 354 sub Element($$$)
 355 {
 356         my ($e,$pn,$ifname) = @_;
 357
 358         my $dissectorname = "$ifname\_dissect\_element\_".StripPrefixes($pn)."\_".StripPrefixes($e->{NAME});
 359
 360         my $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, drep);";
 361
 362         my $type = find_type($e->{TYPE});
 363
 364         if (not defined($type)) {
 365                 # default settings
 366                 $type = {
 367                         MASK => 0,
 368                         VALSSTRING => "NULL",
 369                         FT_TYPE => "FT_NONE",
 370                         BASE_TYPE => "BASE_HEX"
 371                 };
 372         }
 373
 374         if (ContainsString($e)) {
 375                 $type = {
 376                         MASK => 0,
 377                         VALSSTRING => "NULL",
 378                         FT_TYPE => "FT_STRING",
 379                         BASE_TYPE => "BASE_DEC"
 380                 };
 381         }
 382
 383         my $hf = register_hf_field("hf_$ifname\_$pn\_$e->{NAME}", field2name($e->{NAME}), "$ifname.$pn.$e->{NAME}", $type->{FT_TYPE}, $type->{BASE_TYPE}, $type->{VALSSTRING}, $type->{MASK}, "");
 384         $hf_used{$hf} = 1;
 385
 386         my $eltname = StripPrefixes($pn) . ".$e->{NAME}";
 387         if (defined($conformance->{noemit}->{$eltname})) {
 388                 return $call_code;
 389         }
 390
 391         my $add = "";
 392
 393         foreach (@{$e->{LEVELS}}) {
 394                 next if ($_->{TYPE} eq "SWITCH");
 395                 pidl_def "static int $dissectorname$add(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep);";
 396                 pidl_fn_start "$dissectorname$add";
 397                 pidl_code "static int";
 398                 pidl_code "$dissectorname$add(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep)";
 399                 pidl_code "{";
 400                 indent;
 401
 402                 ElementLevel($e,$_,$hf,$dissectorname.$add,$pn,$ifname);
 403
 404                 pidl_code "";
 405                 pidl_code "return offset;";
 406                 deindent;
 407                 pidl_code "}\n";
 408                 pidl_fn_end "$dissectorname$add";
 409                 $add.="_";
 410                 last if ($_->{TYPE} eq "ARRAY" and $_->{IS_ZERO_TERMINATED});
 411         }
 412
 413         return $call_code;
 414 }
 415
 416 sub Function($$$)
 417 {
 418         my ($fn,$ifname) = @_;
 419
 420         my %dissectornames;
 421
 422         foreach (@{$fn->{ELEMENTS}}) {
 423             $dissectornames{$_->{NAME}} = Element($_, $fn->{NAME}, $ifname) if not defined($dissectornames{$_->{NAME}});
 424         }
 425
 426         my $fn_name = $_->{NAME};
 427         $fn_name =~ s/^${ifname}_//;
 428
 429         print "$fn_name\n";
 430
 431         PrintIdl DumpFunction($fn->{ORIGINAL});
 432         pidl_fn_start "$ifname\_dissect\_$fn_name\_response";
 433         pidl_code "static int";
 434         pidl_code "$ifname\_dissect\_${fn_name}_response(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, guint8 *drep _U_)";
 435         pidl_code "{";
 436         indent;
 437         if ( not defined($fn->{RETURN_TYPE})) {
 438         } elsif ($fn->{RETURN_TYPE} eq "NTSTATUS" or $fn->{RETURN_TYPE} eq "WERROR")
 439         {
 440                 pidl_code "guint32 status;\n";
 441         } elsif (my $type = getType($fn->{RETURN_TYPE})) {
 442                 if ($type->{DATA}->{TYPE} eq "ENUM") {
 443                         pidl_code "g".Parse::Pidl::Typelist::enum_type_fn($type->{DATA}) . " status;\n";
 444                 } else {
 445                 print "$fn->{FILE}:$fn->{LINE}: error: return type `$fn->{RETURN_TYPE}' not yet supported\n";
 446                 }
 447         } else {
 448                 print "$fn->{FILE}:$fn->{LINE}: error: unknown return type `$fn->{RETURN_TYPE}'\n";
 449         }
 450
 451         foreach (@{$fn->{ELEMENTS}}) {
 452                 if (grep(/out/,@{$_->{DIRECTION}})) {
 453                         pidl_code "$dissectornames{$_->{NAME}}";
 454                         pidl_code "offset = dissect_deferred_pointers(pinfo, tvb, offset, drep);";
 455                         pidl_code "";
 456                 }
 457         }
 458
 459         if (not defined($fn->{RETURN_TYPE})) {
 460         } elsif ($fn->{RETURN_TYPE} eq "NTSTATUS") {
 461                 pidl_code "offset = dissect_ntstatus(tvb, offset, pinfo, tree, drep, hf\_$ifname\_status, &status);\n";
 462                 pidl_code "if (status != 0 && check_col(pinfo->cinfo, COL_INFO))";
 463                 pidl_code "\tcol_append_fstr(pinfo->cinfo, COL_INFO, \", Error: %s\", val_to_str(status, NT_errors, \"Unknown NT status 0x%08x\"));\n";
 464                 $return_types{$ifname}->{"status"} = ["NTSTATUS", "NT Error"];
 465         } elsif ($fn->{RETURN_TYPE} eq "WERROR") {
 466                 pidl_code "offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, drep, hf\_$ifname\_werror, &status);\n";
 467                 pidl_code "if (status != 0 && check_col(pinfo->cinfo, COL_INFO))";
 468                 pidl_code "\tcol_append_fstr(pinfo->cinfo, COL_INFO, \", Error: %s\", val_to_str(status, WERR_errors, \"Unknown DOS error 0x%08x\"));\n";
 469
 470                 $return_types{$ifname}->{"werror"} = ["WERROR", "Windows Error"];
 471         } elsif (my $type = getType($fn->{RETURN_TYPE})) {
 472                 if ($type->{DATA}->{TYPE} eq "ENUM") {
 473                         my $return_type = "g".Parse::Pidl::Typelist::enum_type_fn($type->{DATA});
 474                         my $return_dissect = "dissect_ndr_" .Parse::Pidl::Typelist::enum_type_fn($type->{DATA});
 475
 476                         pidl_code "offset = $return_dissect(tvb, offset, pinfo, tree, drep, hf\_$ifname\_$fn->{RETURN_TYPE}_status, &status);";
 477                         pidl_code "if (status != 0 && check_col(pinfo->cinfo, COL_INFO))";
 478                         pidl_code "\tcol_append_fstr(pinfo->cinfo, COL_INFO, \", Status: %s\", val_to_str(status, $ifname\_$fn->{RETURN_TYPE}\_vals, \"Unknown " . $fn->{RETURN_TYPE} . " error 0x%08x\"));\n";
 479                         $return_types{$ifname}->{$fn->{RETURN_TYPE}."_status"} = [$fn->{RETURN_TYPE}, $fn->{RETURN_TYPE}];
 480                 }
 481         }
 482
 483
 484         pidl_code "return offset;";
 485         deindent;
 486         pidl_code "}\n";
 487         pidl_fn_end "$ifname\_dissect\_$fn_name\_response";
 488
 489         pidl_fn_start "$ifname\_dissect\_$fn_name\_request";
 490         pidl_code "static int";
 491         pidl_code "$ifname\_dissect\_${fn_name}_request(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, guint8 *drep _U_)";
 492         pidl_code "{";
 493         indent;
 494         foreach (@{$fn->{ELEMENTS}}) {
 495                 if (grep(/in/,@{$_->{DIRECTION}})) {
 496                         pidl_code "$dissectornames{$_->{NAME}}";
 497                         pidl_code "offset = dissect_deferred_pointers(pinfo, tvb, offset, drep);";
 498                 }
 499
 500         }
 501
 502         pidl_code "return offset;";
 503         deindent;
 504         pidl_code "}\n";
 505         pidl_fn_end "$ifname\_dissect\_$fn_name\_request";
 506 }
 507
 508 sub Struct($$$)
 509 {
 510         my ($e,$name,$ifname) = @_;
 511         my $dissectorname = "$ifname\_dissect\_struct\_".StripPrefixes($name);
 512
 513         return if (defined($conformance->{noemit}->{StripPrefixes($name)}));
 514
 515         register_ett("ett_$ifname\_$name");
 516
 517         my $res = "";
 518         ($res.="\t".Element($_, $name, $ifname)."\n\n") foreach (@{$e->{ELEMENTS}});
 519
 520         pidl_hdr "int $dissectorname(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *parent_tree, guint8 *drep, int hf_index, guint32 param _U_);";
 521
 522         pidl_fn_start $dissectorname;
 523         pidl_code "int";
 524         pidl_code "$dissectorname(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *parent_tree, guint8 *drep, int hf_index, guint32 param _U_)";
 525         pidl_code "{";
 526         indent;
 527         pidl_code "proto_item *item = NULL;";
 528         pidl_code "proto_tree *tree = NULL;";
 529         pidl_code "int old_offset;";
 530         pidl_code "";
 531
 532         if ($e->{ALIGN} > 1) {
 533                 pidl_code "ALIGN_TO_$e->{ALIGN}_BYTES;";
 534         }
 535         pidl_code "";
 536
 537         pidl_code "old_offset = offset;";
 538         pidl_code "";
 539         pidl_code "if (parent_tree) {";
 540         indent;
 541         pidl_code "item = proto_tree_add_item(parent_tree, hf_index, tvb, offset, -1, TRUE);";
 542         pidl_code "tree = proto_item_add_subtree(item, ett_$ifname\_$name);";
 543         deindent;
 544         pidl_code "}";
 545
 546         pidl_code "\n$res";
 547
 548         pidl_code "proto_item_set_len(item, offset-old_offset);\n";
 549         pidl_code "return offset;";
 550         deindent;
 551         pidl_code "}\n";
 552         pidl_fn_end $dissectorname;
 553
 554         register_type($name, "offset = $dissectorname(tvb,offset,pinfo,tree,drep,\@HF\@,\@PARAM\@);", "FT_NONE", "BASE_NONE", 0, "NULL", 0);
 555 }
 556
 557 sub Union($$$)
 558 {
 559         my ($e,$name,$ifname) = @_;
 560
 561         my $dissectorname = "$ifname\_dissect_".StripPrefixes($name);
 562
 563         return if (defined($conformance->{noemit}->{StripPrefixes($name)}));
 564
 565         register_ett("ett_$ifname\_$name");
 566
 567         my $res = "";
 568         foreach (@{$e->{ELEMENTS}}) {
 569                 $res.="\n\t\t$_->{CASE}:\n";
 570                 if ($_->{TYPE} ne "EMPTY") {
 571                         $res.="\t\t\t".Element($_, $name, $ifname)."\n";
 572                 }
 573                 $res.="\t\tbreak;\n";
 574         }
 575
 576         my $switch_type;
 577         my $switch_dissect;
 578         my $switch_dt = getType($e->{SWITCH_TYPE});
 579         if ($switch_dt->{DATA}->{TYPE} eq "ENUM") {
 580                 $switch_type = "g".Parse::Pidl::Typelist::enum_type_fn($switch_dt->{DATA});
 581                 $switch_dissect = "dissect_ndr_" .Parse::Pidl::Typelist::enum_type_fn($switch_dt->{DATA});
 582         } elsif ($switch_dt->{DATA}->{TYPE} eq "SCALAR") {
 583                 $switch_type = "g$e->{SWITCH_TYPE}";
 584                 $switch_dissect = "dissect_ndr_$e->{SWITCH_TYPE}";
 585         }
 586
 587         pidl_fn_start $dissectorname;
 588         pidl_code "static int";
 589         pidl_code "$dissectorname(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *parent_tree, guint8 *drep, int hf_index, guint32 param _U_)";
 590         pidl_code "{";
 591         indent;
 592         pidl_code "proto_item *item = NULL;";
 593         pidl_code "proto_tree *tree = NULL;";
 594         pidl_code "int old_offset;";
 595         pidl_code "$switch_type level;";
 596         pidl_code "";
 597
 598         if ($e->{ALIGN} > 1) {
 599                 pidl_code "ALIGN_TO_$e->{ALIGN}_BYTES;";
 600         }
 601
 602         pidl_code "";
 603
 604         pidl_code "old_offset = offset;";
 605         pidl_code "if (parent_tree) {";
 606         indent;
 607         pidl_code "item = proto_tree_add_text(parent_tree, tvb, offset, -1, \"$name\");";
 608         pidl_code "tree = proto_item_add_subtree(item, ett_$ifname\_$name);";
 609         deindent;
 610         pidl_code "}";
 611
 612         pidl_code "";
 613
 614         pidl_code "offset = $switch_dissect(tvb, offset, pinfo, tree, drep, hf_index, &level);";
 615
 616         pidl_code "switch(level) {$res\t}";
 617         pidl_code "proto_item_set_len(item, offset-old_offset);\n";
 618         pidl_code "return offset;";
 619         deindent;
 620         pidl_code "}";
 621         pidl_fn_end $dissectorname;
 622
 623         register_type($name, "offset = $dissectorname(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);", "FT_NONE", "BASE_NONE", 0, "NULL", 0);
 624 }
 625
 626 sub Const($$)
 627 {
 628         my ($const,$ifname) = @_;
 629
 630         if (!defined($const->{ARRAY_LEN}[0])) {
 631                 pidl_hdr "#define $const->{NAME}\t( $const->{VALUE} )\n";
 632         } else {
 633                 pidl_hdr "#define $const->{NAME}\t $const->{VALUE}\n";
 634         }
 635 }
 636
 637 sub Typedef($$)
 638 {
 639         my ($e,$ifname) = @_;
 640
 641         PrintIdl DumpTypedef($e->{ORIGINAL});
 642
 643         {
 644                 ENUM => \&Enum,
 645                 STRUCT => \&Struct,
 646                 UNION => \&Union,
 647                 BITMAP => \&Bitmap
 648         }->{$e->{DATA}->{TYPE}}->($e->{DATA}, $e->{NAME}, $ifname);
 649 }
 650
 651 sub RegisterInterface($)
 652 {
 653         my ($x) = @_;
 654
 655         pidl_fn_start "proto_register_dcerpc_$x->{NAME}";
 656         pidl_code "void proto_register_dcerpc_$x->{NAME}(void)";
 657         pidl_code "{";
 658         indent;
 659
 660         $res{code}.=DumpHfList()."\n";
 661         $res{code}.="\n".DumpEttList()."\n";
 662
 663         if (defined($x->{UUID})) {
 664             # These can be changed to non-pidl_code names if the old dissectors
 665             # in epan/dissctors are deleted.
 666
 667             my $name = uc($x->{NAME}) . " (pidl)";
 668             my $short_name = uc($x->{NAME});
 669             my $filter_name = $x->{NAME};
 670
 671             if (has_property($x, "helpstring")) {
 672                 $name = $x->{PROPERTIES}->{helpstring};
 673             }
 674
 675             if (defined($conformance->{protocols}->{$x->{NAME}})) {
 676                 $short_name = $conformance->{protocols}->{$x->{NAME}}->{SHORTNAME};
 677                 $name = $conformance->{protocols}->{$x->{NAME}}->{LONGNAME};
 678                 $filter_name = $conformance->{protocols}->{$x->{NAME}}->{FILTERNAME};
 679             }
 680
 681             pidl_code "proto_dcerpc_$x->{NAME} = proto_register_protocol(".make_str($name).", ".make_str($short_name).", ".make_str($filter_name).");";
 682
 683             pidl_code "proto_register_field_array(proto_dcerpc_$x->{NAME}, hf, array_length (hf));";
 684             pidl_code "proto_register_subtree_array(ett, array_length(ett));";
 685         } else {
 686             pidl_code "proto_dcerpc = proto_get_id_by_filter_name(\"dcerpc\");";
 687             pidl_code "proto_register_field_array(proto_dcerpc, hf, array_length(hf));";
 688             pidl_code "proto_register_subtree_array(ett, array_length(ett));";
 689         }
 690
 691         deindent;
 692         pidl_code "}\n";
 693         pidl_fn_end "proto_register_dcerpc_$x->{NAME}";
 694 }
 695
 696 sub RegisterInterfaceHandoff($)
 697 {
 698         my $x = shift;
 699
 700         if (defined($x->{UUID})) {
 701                 pidl_fn_start "proto_reg_handoff_dcerpc_$x->{NAME}";
 702             pidl_code "void proto_reg_handoff_dcerpc_$x->{NAME}(void)";
 703             pidl_code "{";
 704             indent;
 705             pidl_code "dcerpc_init_uuid(proto_dcerpc_$x->{NAME}, ett_dcerpc_$x->{NAME},";
 706             pidl_code "\t&uuid_dcerpc_$x->{NAME}, ver_dcerpc_$x->{NAME},";
 707             pidl_code "\t$x->{NAME}_dissectors, hf_$x->{NAME}_opnum);";
 708             deindent;
 709             pidl_code "}";
 710                 pidl_fn_end "proto_reg_handoff_dcerpc_$x->{NAME}";
 711
 712                 $hf_used{"hf_$x->{NAME}_opnum"} = 1;
 713         }
 714 }
 715
 716 sub ProcessInterface($)
 717 {
 718         my ($x) = @_;
 719
 720         push(@{$conformance->{strip_prefixes}}, $x->{NAME});
 721
 722         my $define = "__PACKET_DCERPC_" . uc($_->{NAME}) . "_H";
 723         pidl_hdr "#ifndef $define";
 724         pidl_hdr "#define $define";
 725         pidl_hdr "";
 726
 727         if (defined $x->{PROPERTIES}->{depends}) {
 728                 foreach (split / /, $x->{PROPERTIES}->{depends}) {
 729                         next if($_ eq "security");
 730                         pidl_hdr "#include \"packet-dcerpc-$_\.h\"\n";
 731                 }
 732         }
 733
 734         pidl_def "static gint proto_dcerpc_$x->{NAME} = -1;";
 735         register_ett("ett_dcerpc_$x->{NAME}");
 736         register_hf_field("hf_$x->{NAME}_opnum", "Operation", "$x->{NAME}.opnum", "FT_UINT16", "BASE_DEC", "NULL", 0, "");
 737
 738         if (defined($x->{UUID})) {
 739                 my $if_uuid = $x->{UUID};
 740
 741             pidl_def "/* Version information */\n\n";
 742
 743             pidl_def "static e_uuid_t uuid_dcerpc_$x->{NAME} = {";
 744             pidl_def "\t0x" . substr($if_uuid, 1, 8)
 745                 . ", 0x" . substr($if_uuid, 10, 4)
 746             . ", 0x" . substr($if_uuid, 15, 4) . ",";
 747             pidl_def "\t{ 0x" . substr($if_uuid, 20, 2)
 748                 . ", 0x" . substr($if_uuid, 22, 2)
 749             . ", 0x" . substr($if_uuid, 25, 2)
 750             . ", 0x" . substr($if_uuid, 27, 2)
 751             . ", 0x" . substr($if_uuid, 29, 2)
 752             . ", 0x" . substr($if_uuid, 31, 2)
 753             . ", 0x" . substr($if_uuid, 33, 2)
 754             . ", 0x" . substr($if_uuid, 35, 2) . " }";
 755             pidl_def "};";
 756
 757             my $maj = $x->{VERSION};
 758             $maj =~ s/\.(.*)$//g;
 759             pidl_def "static guint16 ver_dcerpc_$x->{NAME} = $maj;";
 760             pidl_def "";
 761         }
 762
 763         $return_types{$x->{NAME}} = {};
 764
 765         Interface($x);
 766
 767         pidl_code "\n".DumpFunctionTable($x);
 768
 769         foreach (keys %{$return_types{$x->{NAME}}}) {
 770                 my ($type, $desc) = @{$return_types{$x->{NAME}}->{$_}};
 771                 my $dt = find_type($type);
 772                 $dt or die("Unable to find information about return type `$type'");
 773                 register_hf_field("hf_$x->{NAME}_$_", $desc, "$x->{NAME}.$_", $dt->{FT_TYPE}, "BASE_HEX", $dt->{VALSSTRING}, 0, "");
 774                 $hf_used{"hf_$x->{NAME}_$_"} = 1;
 775         }
 776
 777         RegisterInterface($x);
 778         RegisterInterfaceHandoff($x);
 779
 780         pidl_hdr "#endif /* $define */";
 781 }
 782
 783 sub find_type($)
 784 {
 785         my $n = shift;
 786
 787         return $conformance->{types}->{$n};
 788 }
 789
 790 sub register_type($$$$$$$)
 791 {
 792         my ($type,$call,$ft,$base,$mask,$vals,$length) = @_;
 793
 794         $conformance->{types}->{$type} = {
 795                 NAME => $type,
 796                 DISSECTOR_NAME => $call,
 797                 FT_TYPE => $ft,
 798                 BASE_TYPE => $base,
 799                 MASK => $mask,
 800                 VALSSTRING => $vals,
 801                 ALIGNMENT => $length
 802         };
 803 }
 804
 805 # Loads the default types
 806 sub Initialize($)
 807 {
 808         my $cnf_file = shift;
 809
 810         $conformance = {
 811                 imports => {},
 812                 header_fields=> {}
 813         };
 814
 815         ReadConformance($cnf_file, $conformance) or print "Warning: No conformance file `$cnf_file'\n";
 816
 817         foreach my $bytes (qw(1 2 4 8)) {
 818                 my $bits = $bytes * 8;
 819                 register_type("uint$bits", "offset = dissect_ndr_uint$bits(tvb, offset, pinfo, tree, drep, \@HF\@,NULL);", "FT_UINT$bits", "BASE_DEC", 0, "NULL", $bytes);
 820                 register_type("int$bits", "offset = dissect_ndr_uint$bits(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);", "FT_INT$bits", "BASE_DEC", 0, "NULL", $bytes);
 821         }
 822
 823         register_type("udlong", "offset = dissect_ndr_duint32(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);", "FT_UINT64", "BASE_DEC", 0, "NULL", 4);
 824         register_type("bool8", "offset = dissect_ndr_uint8(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);","FT_INT8", "BASE_DEC", 0, "NULL", 1);
 825         register_type("char", "offset = dissect_ndr_uint8(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);","FT_INT8", "BASE_DEC", 0, "NULL", 1);
 826         register_type("long", "offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);","FT_INT32", "BASE_DEC", 0, "NULL", 4);
 827         register_type("dlong", "offset = dissect_ndr_duint32(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);","FT_INT64", "BASE_DEC", 0, "NULL", 8);
 828         register_type("GUID", "offset = dissect_ndr_uuid_t(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);","FT_GUID", "BASE_NONE", 0, "NULL", 4);
 829         register_type("policy_handle", "offset = dissect_nt_policy_hnd(tvb, offset, pinfo, tree, drep, \@HF\@, NULL, NULL, \@PARAM\@&0x01, \@PARAM\@&0x02);","FT_BYTES", "BASE_NONE", 0, "NULL", 4);
 830         register_type("NTTIME", "offset = dissect_ndr_nt_NTTIME(tvb, offset, pinfo, tree, drep, \@HF\@);","FT_ABSOLUTE_TIME", "BASE_NONE", 0, "NULL", 4);
 831         register_type("NTTIME_hyper", "offset = dissect_ndr_nt_NTTIME(tvb, offset, pinfo, tree, drep, \@HF\@);","FT_ABSOLUTE_TIME", "BASE_NONE", 0, "NULL", 4);
 832         register_type("time_t", "offset = dissect_ndr_time_t(tvb, offset, pinfo,tree, drep, \@HF\@, NULL);","FT_ABSOLUTE_TIME", "BASE_DEC", 0, "NULL", 4);
 833         register_type("NTTIME_1sec", "offset = dissect_ndr_nt_NTTIME(tvb, offset, pinfo, tree, drep, \@HF\@);", "FT_ABSOLUTE_TIME", "BASE_NONE", 0, "NULL", 4);
 834         register_type("SID", "
 835                 dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
 836
 837                 di->hf_index = \@HF\@;
 838
 839                 offset = dissect_ndr_nt_SID_with_options(tvb, offset, pinfo, tree, drep, param);
 840         ","FT_STRING", "BASE_DEC", 0, "NULL", 4);
 841         register_type("WERROR",
 842                 "offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);","FT_UINT32", "BASE_DEC", 0, "VALS(WERR_errors)", 4);
 843         register_type("NTSTATUS",
 844                 "offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);","FT_UINT32", "BASE_DEC", 0, "VALS(NT_errors)", 4);
 845
 846 }
 847
 848 #####################################################################
 849 # Generate Wireshark parser and header code
 850 sub Parse($$$$)
 851 {
 852         my($ndr,$idl_file,$h_filename,$cnf_file) = @_;
 853         Initialize($cnf_file);
 854
 855         return (undef, undef) if defined($conformance->{noemit_dissector});
 856
 857         $tabs = "";
 858
 859         %res = (code=>"",def=>"",hdr=>"");
 860         @ett = ();
 861
 862         my $notice =
 863 "/* DO NOT EDIT
 864         This filter was automatically generated
 865         from $idl_file and $cnf_file.
 866
 867         Pidl is a perl based IDL compiler for DCE/RPC idl files.
 868         It is maintained by the Samba team, not the Wireshark team.
 869         Instructions on how to download and install Pidl can be
 870         found at http://wiki.wireshark.org/Pidl
 871 */
 872
 873 ";
 874
 875         pidl_hdr $notice;
 876
 877         $res{headers} = "\n";
 878         $res{headers} .= "#ifdef HAVE_CONFIG_H\n";
 879         $res{headers} .= "#include \"config.h\"\n";
 880         $res{headers} .= "#endif\n\n";
 881         $res{headers} .= "#include <glib.h>\n";
 882         $res{headers} .= "#include <string.h>\n";
 883         $res{headers} .= "#include <epan/packet.h>\n\n";
 884
 885         $res{headers} .= "#include \"packet-dcerpc.h\"\n";
 886         $res{headers} .= "#include \"packet-dcerpc-nt.h\"\n";
 887         $res{headers} .= "#include \"packet-windows-common.h\"\n";
 888
 889         my $h_basename = basename($h_filename);
 890
 891         $res{headers} .= "#include \"$h_basename\"\n";
 892         pidl_code "";
 893
 894         # Wireshark protocol registration
 895
 896         ProcessInterface($_) foreach (@$ndr);
 897
 898         $res{ett} = DumpEttDeclaration();
 899         $res{hf} = DumpHfDeclaration();
 900
 901         my $parser = $notice;
 902         $parser.= $res{headers};
 903         $parser.=$res{ett};
 904         $parser.=$res{hf};
 905         $parser.=$res{def};
 906         $parser.=$conformance->{override};
 907         $parser.=$res{code};
 908
 909         my $header = "/* autogenerated by pidl */\n\n";
 910         $header.=$res{hdr};
 911
 912         CheckUsed($conformance);
 913
 914         return ($parser,$header);
 915 }
 916
 917 ###############################################################################
 918 # ETT
 919 ###############################################################################
 920
 921 sub register_ett($)
 922 {
 923         my $name = shift;
 924
 925         push (@ett, $name);
 926 }
 927
 928 sub DumpEttList()
 929 {
 930         my $res = "\tstatic gint *ett[] = {\n";
 931         foreach (@ett) {
 932                 $res .= "\t\t&$_,\n";
 933         }
 934
 935         return "$res\t};\n";
 936 }
 937
 938 sub DumpEttDeclaration()
 939 {
 940         my $res = "\n/* Ett declarations */\n";
 941         foreach (@ett) {
 942                 $res .= "static gint $_ = -1;\n";
 943         }
 944
 945         return "$res\n";
 946 }
 947
 948 ###############################################################################
 949 # HF
 950 ###############################################################################
 951
 952 sub register_hf_field($$$$$$$$)
 953 {
 954         my ($index,$name,$filter_name,$ft_type,$base_type,$valsstring,$mask,$blurb) = @_;
 955
 956         if (defined ($conformance->{hf_renames}->{$index})) {
 957                 $conformance->{hf_renames}->{$index}->{USED} = 1;
 958                 return $conformance->{hf_renames}->{$index}->{NEWNAME};
 959         }
 960
 961         $conformance->{header_fields}->{$index} = {
 962                 INDEX => $index,
 963                 NAME => $name,
 964                 FILTER => $filter_name,
 965                 FT_TYPE => $ft_type,
 966                 BASE_TYPE => $base_type,
 967                 VALSSTRING => $valsstring,
 968                 MASK => $mask,
 969                 BLURB => $blurb
 970         };
 971
 972         if ((not defined($blurb) or $blurb eq "") and
 973                         defined($conformance->{fielddescription}->{$index})) {
 974                 $conformance->{header_fields}->{$index}->{BLURB} =
 975                         $conformance->{fielddescription}->{$index}->{DESCRIPTION};
 976                 $conformance->{fielddescription}->{$index}->{USED} = 1;
 977         }
 978
 979         return $index;
 980 }
 981
 982 sub DumpHfDeclaration()
 983 {
 984         my $res = "";
 985
 986         $res = "\n/* Header field declarations */\n";
 987
 988         foreach (keys %{$conformance->{header_fields}})
 989         {
 990                 $res .= "static gint $_ = -1;\n";
 991         }
 992
 993         return "$res\n";
 994 }
 995
 996 sub DumpHfList()
 997 {
 998         my $res = "\tstatic hf_register_info hf[] = {\n";
 999
1000         foreach (values %{$conformance->{header_fields}})
1001         {
1002                 $res .= "\t{ &$_->{INDEX},
1003           { ".make_str($_->{NAME}).", ".make_str($_->{FILTER}).", $_->{FT_TYPE}, $_->{BASE_TYPE}, $_->{VALSSTRING}, $_->{MASK}, ".make_str($_->{BLURB}).", HFILL }},
1004 ";
1005         }
1006
1007         return $res."\t};\n";
1008 }
1009
1010
1011 ###############################################################################
1012 # Function table
1013 ###############################################################################
1014
1015 sub DumpFunctionTable($)
1016 {
1017         my $if = shift;
1018
1019         my $res = "static dcerpc_sub_dissector $if->{NAME}\_dissectors[] = {\n";
1020         foreach (@{$if->{FUNCTIONS}}) {
1021                 my $fn_name = $_->{NAME};
1022                 $fn_name =~ s/^$if->{NAME}_//;
1023                 $res.= "\t{ $_->{OPNUM}, \"$fn_name\",\n";
1024                 $res.= "\t   $if->{NAME}_dissect_${fn_name}_request, $if->{NAME}_dissect_${fn_name}_response},\n";
1025         }
1026
1027         $res .= "\t{ 0, NULL, NULL, NULL }\n";
1028
1029         return "$res};\n";
1030 }
1031
1032 sub CheckUsed($)
1033 {
1034         my $conformance = shift;
1035         foreach (values %{$conformance->{header_fields}}) {
1036                 if (not defined($hf_used{$_->{INDEX}})) {
1037                         print "$_->{POS}: warning: hf field `$_->{INDEX}' not used\n";
1038                 }
1039         }
1040
1041         foreach (values %{$conformance->{hf_renames}}) {
1042                 if (not $_->{USED}) {
1043                         print "$_->{POS}: warning: hf field `$_->{OLDNAME}' not used\n";
1044                 }
1045         }
1046
1047         foreach (values %{$conformance->{dissectorparams}}) {
1048                 if (not $_->{USED}) {
1049                         print "$_->{POS}: warning: dissector param never used\n";
1050                 }
1051         }
1052
1053         foreach (values %{$conformance->{imports}}) {
1054                 if (not $_->{USED}) {
1055                         print "$_->{POS}: warning: import never used\n";
1056                 }
1057         }
1058
1059         foreach (values %{$conformance->{types}}) {
1060                 if (not $_->{USED} and defined($_->{POS})) {
1061                         print "$_->{POS}: warning: type never used\n";
1062                 }
1063         }
1064
1065         foreach (values %{$conformance->{fielddescription}}) {
1066                 if (not $_->{USED}) {
1067                         print "$_->{POS}: warning: description never used\n";
1068                 }
1069         }
1070
1071         foreach (values %{$conformance->{tfs}}) {
1072                 if (not $_->{USED}) {
1073                         print "$_->{POS}: warning: True/False description never used\n";
1074                 }
1075         }
1076 }
1077
1078 1;