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

   1 ##################################################
   2 # Wireshark 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 2004-2007
   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 Exporter;
  20 @ISA = qw(Exporter);
  21 @EXPORT_OK = qw(field2name %res PrintIdl StripPrefixes RegisterInterfaceHandoff register_hf_field CheckUsed ProcessImport ProcessInclude find_type DumpEttList DumpEttDeclaration DumpHfList DumpHfDeclaration DumpFunctionTable register_type register_ett);
  22
  23 use strict;
  24 use warnings;
  25 use Parse::Pidl qw(error warning);
  26 use Parse::Pidl::Typelist qw(getType mapScalarType);
  27 use Parse::Pidl::Util qw(has_property property_matches make_str);
  28 use Parse::Pidl::NDR qw(ContainsString GetNextLevel GetPrevLevel);
  29 use Parse::Pidl::Dump qw(DumpType DumpFunction);
  30 use Parse::Pidl::Wireshark::Conformance qw(ReadConformance);
  31 use File::Basename;
  32
  33 use vars qw($VERSION);
  34 $VERSION = '0.01';
  35
  36 my %return_types = ();
  37 my %dissector_used = ();
  38
  39 my %ptrtype_mappings = (
  40         "unique" => "NDR_POINTER_UNIQUE",
  41         "ref" => "NDR_POINTER_REF",
  42         "ptr" => "NDR_POINTER_PTR",
  43         "full" => "NDR_POINTER_PTR"
  44 );
  45
  46 my %variable_scalars = (
  47         "int1632"       => "int32_t",
  48         "uint1632"      => "uint32_t",
  49         "int3264"       => "int64_t",
  50         "uint3264"      => "uint64_t",
  51 );
  52
  53 # map from an IDL type to a C header type, using the on-the-wire length.
  54 # Produces different results than mapScalarType in Parse::Pidl::Typelist
  55 # for the types that have different wire lengths in NDR and NDR64 (i.e.,
  56 # includes the padding for uint1632 and uint3264, unlike that function.)
  57 sub mapWireScalarType($)
  58 {
  59         my ($name) = shift;
  60
  61         return $variable_scalars{$name} if defined($variable_scalars{$name});
  62
  63         return mapScalarType($name);
  64 }
  65
  66 sub StripPrefixes($$)
  67 {
  68         my ($s, $prefixes) = @_;
  69
  70         foreach (@$prefixes) {
  71                 $s =~ s/^$_\_//g;
  72         }
  73
  74         return $s;
  75 }
  76
  77 sub ContainsWithinEmbeddedPointer($$)
  78 {
  79         my ($e,$l) = @_;
  80
  81         my $ret = 0;
  82
  83         while ($l = GetPrevLevel($e,$l))
  84         {
  85                 $ret += 1;
  86                 next if ($l->{TYPE} eq "SWITCH");
  87                 return 0 if ($l->{TYPE} ne "POINTER");
  88                 return $ret if ($l->{LEVEL} eq "EMBEDDED");
  89         }
  90
  91         return 0;
  92 }
  93
  94 # Convert a IDL structure field name (e.g access_mask) to a prettier
  95 # string like 'Access Mask'.
  96
  97 sub field2name($)
  98 {
  99         my($field) = shift;
 100
 101         $field =~ s/^(_)*//g;           # Remove any starting underscores
 102         $field =~ s/_/ /g;              # Replace underscores with spaces
 103         $field =~ s/(\w+)/\u$1/g;       # Capitalise each word
 104
 105         return $field;
 106 }
 107
 108 sub new($)
 109 {
 110         my ($class) = @_;
 111         my $self = {res => {hdr => "", def => "", code => ""}, tabs => "", cur_fn => undef,
 112                 hf_used => {}, ett => [], conformance => undef
 113
 114         };
 115         bless($self, $class);
 116 }
 117
 118 sub pidl_fn_start($$)
 119 {
 120         my ($self, $fn) = @_;
 121         $self->{cur_fn} = $fn;
 122 }
 123 sub pidl_fn_end($$)
 124 {
 125         my ($self, $fn) = @_;
 126         die("Inconsistent state: $fn != $self->{cur_fn}") if ($fn ne $self->{cur_fn});
 127         $self->{cur_fn} = undef;
 128 }
 129
 130 sub pidl_code($$)
 131 {
 132         my ($self, $d) = @_;
 133         return if (defined($self->{cur_fn}) and defined($self->{conformance}->{manual}->{$self->{cur_fn}}));
 134
 135         if ($d) {
 136                 $self->{res}->{code} .= $self->{tabs};
 137                 $self->{res}->{code} .= $d;
 138         }
 139         $self->{res}->{code} .="\n";
 140 }
 141
 142 sub pidl_hdr($$) { my ($self,$x) = @_; $self->{res}->{hdr} .= "$x\n"; }
 143 sub pidl_def($$) { my ($self,$x) = @_; $self->{res}->{def} .= "$x\n"; }
 144
 145 sub indent($)
 146 {
 147         my ($self) = @_;
 148         $self->{tabs} .= "\t";
 149 }
 150
 151 sub deindent($)
 152 {
 153         my ($self) = @_;
 154         $self->{tabs} = substr($self->{tabs}, 0, -1);
 155 }
 156
 157 sub PrintIdl($$)
 158 {
 159         my ($self, $idl) = @_;
 160
 161         foreach (split /\n/, $idl) {
 162                 $self->pidl_code("/* IDL: $_ */");
 163         }
 164
 165         $self->pidl_code("");
 166 }
 167
 168 #####################################################################
 169 # parse the interface definitions
 170 sub Interface($$)
 171 {
 172         my($self, $interface) = @_;
 173         $self->Const($_,$interface->{NAME}) foreach (@{$interface->{CONSTS}});
 174         $self->Type($_, $_->{NAME}, $interface->{NAME}) foreach (@{$interface->{TYPES}});
 175         $self->Function($_,$interface->{NAME}) foreach (@{$interface->{FUNCTIONS}});
 176 }
 177
 178 sub Enum($$$$)
 179 {
 180         my ($self, $e,$name,$ifname) = @_;
 181         my $valsstring = "$ifname\_$name\_vals";
 182         my $dissectorname = "$ifname\_dissect\_enum\_".StripPrefixes($name, $self->{conformance}->{strip_prefixes});
 183
 184         return if (defined($self->{conformance}->{noemit}->{StripPrefixes($name, $self->{conformance}->{strip_prefixes})}));
 185
 186         foreach (@{$e->{ELEMENTS}}) {
 187                 if (/([^=]*)=(.*)/) {
 188                         $self->pidl_hdr("#define $1 ($2)");
 189                 }
 190         }
 191
 192         $self->pidl_hdr("extern const value_string $valsstring\[];");
 193         $self->pidl_hdr("int $dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_, int hf_index _U_, " . mapWireScalarType($e->{BASE_TYPE}) ." *param _U_);");
 194
 195         $self->pidl_def("const value_string ".$valsstring."[] = {");
 196         foreach (@{$e->{ELEMENTS}}) {
 197                 next unless (/([^=]*)=(.*)/);
 198                 $self->pidl_def("\t{ $1, \"$1\" },");
 199         }
 200
 201         $self->pidl_def("{ 0, NULL }");
 202         $self->pidl_def("};");
 203
 204         $self->pidl_fn_start($dissectorname);
 205         $self->pidl_code("int");
 206         $self->pidl_code("$dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_, int hf_index _U_, " . mapWireScalarType($e->{BASE_TYPE}) . " *param _U_)");
 207         $self->pidl_code("{");
 208         $self->indent;
 209         $self->pidl_code(mapWireScalarType($e->{BASE_TYPE}) . " parameter=0;");
 210         $self->pidl_code("if (param) {");
 211         $self->indent;
 212         $self->pidl_code("parameter = *param;");
 213         $self->deindent;
 214         $self->pidl_code("}");
 215         $self->pidl_code("offset = dissect_ndr_$e->{BASE_TYPE}(tvb, offset, pinfo, tree, di, drep, hf_index, &parameter);");
 216         $self->pidl_code("if (param) {");
 217         $self->indent;
 218         $self->pidl_code("*param = parameter;");
 219         $self->deindent;
 220         $self->pidl_code("}");
 221         $self->pidl_code("return offset;");
 222         $self->deindent;
 223         $self->pidl_code("}\n");
 224         $self->pidl_fn_end($dissectorname);
 225
 226         my $enum_size = $e->{BASE_TYPE};
 227         $enum_size =~ s/uint//g;
 228         my $ws_base = "BASE_DEC";
 229         $ws_base = "BASE_HEX" if (property_matches($e, "flag", ".*LIBNDR_PRINT_ARRAY_HEX.*"));
 230         $self->register_type($name, "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);", "FT_UINT$enum_size", $ws_base, "0", "VALS($valsstring)", $enum_size / 8);
 231 }
 232
 233 sub Pipe($$$$)
 234 {
 235         my ($self,$e,$name,$ifname) = @_;
 236         error($e->{ORIGINAL}, "Pipe not yet supported");
 237         return;
 238 }
 239
 240 sub Bitmap($$$$)
 241 {
 242         my ($self,$e,$name,$ifname) = @_;
 243         my $dissectorname = "$ifname\_dissect\_bitmap\_".StripPrefixes($name, $self->{conformance}->{strip_prefixes});
 244         my $element_count = 0;
 245         my $total_ev = 0;
 246
 247         $self->register_ett("ett_$ifname\_$name");
 248
 249         $self->pidl_hdr("int $dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_, int hf_index _U_, uint32_t param _U_);");
 250
 251         $self->pidl_fn_start($dissectorname);
 252         $self->pidl_code("int");
 253         $self->pidl_code("$dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *parent_tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_, int hf_index _U_, uint32_t param _U_)");
 254         $self->pidl_code("{");
 255         $self->indent;
 256         foreach (@{$e->{ELEMENTS}}) {
 257                 next unless (/([^ ]*) (.*)/);
 258                 $element_count++;
 259         }
 260         if ($element_count > 0) {
 261                 $self->pidl_code("proto_item *item;");
 262                 $self->pidl_code("static int * const $ifname\_$name\_fields[] = {");
 263                 $self->indent;
 264                 foreach (@{$e->{ELEMENTS}}) {
 265                         next unless (/([^ ]*) (.*)/);
 266                         my ($en,$ev) = ($1,$2);
 267                         my $hf_bitname = "hf_$ifname\_$name\_$1";
 268
 269                         $ev =~ s/[()\s]//g;
 270                         if (hex($ev) != 0) {
 271                                 $total_ev += hex($ev);
 272                                 $self->pidl_code("&$hf_bitname,");
 273                         }
 274                 }
 275                 $self->pidl_code("NULL");
 276                 $self->deindent;
 277                 $self->pidl_code("};");
 278         }
 279
 280         $self->pidl_code(mapWireScalarType($e->{BASE_TYPE}) . " flags;");
 281         if ($e->{ALIGN} > 1) {
 282                 $self->pidl_code("ALIGN_TO_$e->{ALIGN}_BYTES;");
 283         }
 284
 285         $self->pidl_code("");
 286
 287         if ($element_count > 0) {
 288                 $self->pidl_code("item = proto_tree_add_bitmask_with_flags(parent_tree, tvb, offset, hf_index,");
 289                 $self->pidl_code("\t\t\tett_$ifname\_$name, $ifname\_$name\_fields, DREP_ENC_INTEGER(drep), BMT_NO_FALSE);");
 290                 $self->pidl_code("");
 291
 292                 $self->pidl_code("offset = dissect_ndr_$e->{BASE_TYPE}(tvb, offset, pinfo, parent_tree, di, drep, -1, &flags);");
 293                 $self->pidl_code("");
 294
 295                 $self->pidl_code("if (!flags)");
 296                 $self->pidl_code("\tproto_item_append_text(item, \": (No values set)\");\n");
 297         } else {
 298                 $self->pidl_code("proto_tree_add_item(parent_tree, hf_index, tvb, offset, $e->{ALIGN}, DREP_ENC_INTEGER(drep));");
 299                 $self->pidl_code("");
 300
 301                 $self->pidl_code("offset = dissect_ndr_$e->{BASE_TYPE}(tvb, offset, pinfo, parent_tree, di, drep, -1, &flags);");
 302                 $self->pidl_code("");
 303         }
 304
 305         foreach (@{$e->{ELEMENTS}}) {
 306                 next unless (/([^ ]*) (.*)/);
 307                 my ($en,$ev) = ($1,$2);
 308                 my $hf_bitname = "hf_$ifname\_$name\_$en";
 309                 my $filtername = "$ifname\.$name\.$en";
 310
 311                 $self->{hf_used}->{$hf_bitname} = 1;
 312
 313                 $ev =~ s/[()\s]//g;
 314                 if (hex($ev) != 0) {
 315                         $self->register_hf_field($hf_bitname, field2name($en), $filtername, "FT_BOOLEAN", $e->{ALIGN} * 8, "TFS(&$name\_$en\_tfs)", "( $ev )", "");
 316
 317                         $self->pidl_def("static const true_false_string $name\_$en\_tfs = {");
 318                         if (defined($self->{conformance}->{tfs}->{$hf_bitname})) {
 319                                 $self->pidl_def("   $self->{conformance}->{tfs}->{$hf_bitname}->{TRUE_STRING},");
 320                                 $self->pidl_def("   $self->{conformance}->{tfs}->{$hf_bitname}->{FALSE_STRING},");
 321                                 $self->{conformance}->{tfs}->{$hf_bitname}->{USED} = 1;
 322                         } else {
 323                                 $self->pidl_def("   \"$en is SET\",");
 324                                 $self->pidl_def("   \"$en is NOT SET\",");
 325                         }
 326                         $self->pidl_def("};");
 327                 }
 328         }
 329
 330         # Note that if bitmask is full, some compilers would complain about flags &= (~0xffffffff)
 331         if ($element_count > 0 && $element_count < 32) {
 332                 my $total_ev_hex = sprintf("0x%08x", $total_ev);
 333                 $self->pidl_code("if (flags & (~$total_ev_hex)) {");
 334                 $self->pidl_code("\tflags &= (~$total_ev_hex);");
 335                 $self->pidl_code("\tproto_item_append_text(item, \"Unknown bitmap value 0x%x\", flags);");
 336                 $self->pidl_code("}\n");
 337         }
 338         $self->pidl_code("return offset;");
 339         $self->deindent;
 340         $self->pidl_code("}\n");
 341         $self->pidl_fn_end($dissectorname);
 342
 343         my $size = $e->{BASE_TYPE};
 344         $size =~ s/uint//g;
 345         $self->register_type($name, "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);", "FT_UINT$size", "BASE_HEX", "0", "NULL", $size/8);
 346 }
 347
 348 sub ElementLevel($$$$$$$$)
 349 {
 350         my ($self,$e,$l,$hf,$myname,$pn,$ifname,$param) = @_;
 351
 352         if (defined($self->{conformance}->{dissectorparams}->{$myname})) {
 353                 $param = $self->{conformance}->{dissectorparams}->{$myname}->{PARAM};
 354         }
 355
 356         if ($l->{TYPE} eq "POINTER") {
 357                 my $type;
 358                 my $nl = undef;
 359                 if ($l->{LEVEL} eq "TOP") {
 360                         $type = "toplevel";
 361                 } elsif ($l->{LEVEL} eq "EMBEDDED") {
 362                         $type = "embedded";
 363                         $nl = GetNextLevel($e,$l);
 364                 }
 365
 366                 if (defined($nl) and $nl->{TYPE} eq "SWITCH") {
 367                         $self->pidl_code("uint64_t saved_switch_level = di->switch_level;");
 368                         $self->pidl_code("");
 369                         $self->pidl_code("di->switch_level = $param;");
 370                         $self->pidl_code("");
 371                 }
 372
 373                 $self->pidl_code("offset = dissect_ndr_$type\_pointer(tvb, offset, pinfo, tree, di, drep, $myname\_, $ptrtype_mappings{$l->{POINTER_TYPE}}, \"Pointer to ".field2name(StripPrefixes($e->{NAME}, $self->{conformance}->{strip_prefixes})) . " ($e->{TYPE})\",$hf);");
 374                 if (defined($nl) and $nl->{TYPE} eq "SWITCH") {
 375                         $self->pidl_code("");
 376                         $self->pidl_code("di->switch_level = saved_switch_level;");
 377                 }
 378         } elsif ($l->{TYPE} eq "ARRAY") {
 379                 if ($l->{IS_INLINE}) {
 380                         #print Parse::Pidl::Util::MyDumper($e);
 381                         #print Parse::Pidl::Util::MyDumper($l);
 382                         print Parse::Pidl::Util::MyDumper($param);
 383                         $self->pidl_code("/* TODO $myname IS_INLINE */");
 384                         error($e->{ORIGINAL}, "Inline arrays not supported");
 385                 } elsif ($l->{IS_FIXED}) {
 386                         $self->pidl_code("int i;");
 387                         $self->pidl_code("for (i = 0; i < $l->{SIZE_IS}; i++)");
 388                         $self->pidl_code("\toffset = $myname\_(tvb, offset, pinfo, tree, di, drep);");
 389                 } else {
 390                         if ($l->{IS_ZERO_TERMINATED}) {
 391                                 $self->pidl_code("char *data = NULL;");
 392                         }
 393                         my $ngavar = "nga";
 394                         if (!$l->{IS_SURROUNDING}) {
 395                                 $self->pidl_code("struct ndr_generic_array nga = { .is_conformant = false, };");
 396                                 $ngavar = "&nga";
 397                         }
 398                         if (!$l->{IS_SURROUNDING} and $l->{IS_CONFORMANT}) {
 399                                 $self->pidl_code("");
 400                                 $self->pidl_code("offset = dissect_ndr_conformant_array_hdr(tvb, offset, pinfo, tree, di, drep, $ngavar);");
 401                         }
 402                         if ($l->{IS_VARYING}) {
 403                                 $self->pidl_code("");
 404                                 $self->pidl_code("offset = dissect_ndr_varying_array_hdr(tvb, offset, pinfo, tree, di, drep, $ngavar);");
 405                         }
 406
 407                         unless ($l->{IS_ZERO_TERMINATED}) {
 408                                 $self->pidl_code("");
 409                                 $self->pidl_code("offset = dissect_ndr_generic_array_bytes(tvb, offset, pinfo, tree, di, drep, $ngavar, $myname\_);");
 410                         } else {
 411                                 my $nl = GetNextLevel($e,$l);
 412                                 my $nl_ctype = mapScalarType($nl->{DATA_TYPE});
 413                                 $self->pidl_code("offset = dissect_ndr_generic_array_string(tvb, offset, pinfo, tree, di, drep, sizeof($nl_ctype), $hf, false, $ngavar, &data);");
 414                                 $self->pidl_code("proto_item_append_text(tree, \": %s\", data);");
 415                         }
 416                 }
 417         } elsif ($l->{TYPE} eq "DATA") {
 418                 if ($l->{DATA_TYPE} eq "string") {
 419                         my $bs = 2; # Byte size defaults to that of UCS2
 420
 421
 422                         ($bs = 1) if (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_ASCII.*"));
 423
 424                         if (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_SIZE4.*") and property_matches($e, "flag", ".*LIBNDR_FLAG_STR_LEN4.*")) {
 425                                 $self->pidl_code("char *data = NULL;");
 426                                 $self->pidl_code("struct ndr_generic_array nga = { .is_conformant = false, };");
 427                                 $self->pidl_code("offset = dissect_ndr_conformant_array_hdr(tvb, offset, pinfo, tree, di, drep, &nga);");
 428                                 $self->pidl_code("offset = dissect_ndr_varying_array_hdr(tvb, offset, pinfo, tree, di, drep, &nga);");
 429                                 $self->pidl_code("offset = dissect_ndr_generic_array_string(tvb, offset, pinfo, tree, di, drep, $bs, $hf, false, &nga, &data);");
 430                                 $self->pidl_code("proto_item_append_text(tree, \": %s\", data);");
 431                         } elsif (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_SIZE4.*")) {
 432                                 $self->pidl_code("char *data = NULL;");
 433                                 $self->pidl_code("struct ndr_generic_array nga = { .is_conformant = false, };");
 434                                 $self->pidl_code("offset = dissect_ndr_conformant_array_hdr(tvb, offset, pinfo, tree, di, drep, &nga);");
 435                                 $self->pidl_code("offset = dissect_ndr_generic_array_string(tvb, offset, pinfo, tree, di, drep, $bs, $hf, false, &nga, &data);");
 436                                 $self->pidl_code("proto_item_append_text(tree, \": %s\", data);");
 437                         } elsif (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_LEN4.*")) {
 438                                 $self->pidl_code("char *data = NULL;");
 439                                 $self->pidl_code("struct ndr_generic_array nga = { .is_conformant = false, };");
 440                                 $self->pidl_code("offset = dissect_ndr_varying_array_hdr(tvb, offset, pinfo, tree, di, drep, &nga);");
 441                                 $self->pidl_code("offset = dissect_ndr_generic_array_string(tvb, offset, pinfo, tree, di, drep, $bs, $hf, false, &nga, &data);");
 442                                 $self->pidl_code("proto_item_append_text(tree, \": %s\", data);");
 443                         } elsif (property_matches($e, "flag", ".*STR_NULLTERM.*")) {
 444                                 if ($bs == 2) {
 445                                         $self->pidl_code("offset = dissect_null_term_wstring(tvb, offset, pinfo, tree, drep, $hf , 0);")
 446                                 } else {
 447                                         $self->pidl_code("offset = dissect_null_term_string(tvb, offset, pinfo, tree, drep, $hf , 0);")
 448                                 }
 449                         } else {
 450                                 warn("Unable to handle string with flags $e->{PROPERTIES}->{flag}");
 451                         }
 452                 } elsif ($l->{DATA_TYPE} eq "DATA_BLOB") {
 453                         my $remain = 0;
 454                         $remain = 1 if (property_matches($e->{ORIGINAL}, "flag", ".*LIBNDR_FLAG_REMAINING.*"));
 455                         $self->pidl_code("offset = dissect_ndr_datablob(tvb, offset, pinfo, tree, di, drep, $hf, $remain);");
 456                 } else {
 457                         my $call;
 458
 459                         my $within = ContainsWithinEmbeddedPointer($e, $l);
 460                         my $pl = GetPrevLevel($e,$l);
 461                         if ($param ne "0" and $within != 0 and defined($pl) and $pl->{TYPE} eq "SWITCH") {
 462                                 $param = "di->switch_level";
 463                         }
 464
 465                         if ($self->{conformance}->{imports}->{$l->{DATA_TYPE}}) {
 466                                 $call = $self->{conformance}->{imports}->{$l->{DATA_TYPE}}->{DATA};
 467                                 $self->{conformance}->{imports}->{$l->{DATA_TYPE}}->{USED} = 1;
 468                         } elsif (defined($self->{conformance}->{imports}->{"$pn.$e->{NAME}"})) {
 469                                 $call = $self->{conformance}->{imports}->{"$pn.$e->{NAME}"}->{DATA};
 470                                 $self->{conformance}->{imports}->{"$pn.$e->{NAME}"}->{USED} = 1;
 471                         } elsif (defined($self->{conformance}->{types}->{$l->{DATA_TYPE}})) {
 472                                 $call= $self->{conformance}->{types}->{$l->{DATA_TYPE}}->{DISSECTOR_NAME};
 473                                 $self->{conformance}->{types}->{$l->{DATA_TYPE}}->{USED} = 1;
 474                         } else {
 475                                 my $t;
 476                                 if (ref($l->{DATA_TYPE}) eq "HASH" ) {
 477                                         $t = "$l->{DATA_TYPE}->{TYPE}_$l->{DATA_TYPE}->{NAME}";
 478                                 } else {
 479                                         $t = $l->{DATA_TYPE};
 480                                 }
 481
 482                                 $self->pidl_code("offset = $ifname\_dissect_struct_" . $t . "(tvb,offset,pinfo,tree,di,drep,$hf,$param);");
 483
 484                                 return;
 485                         }
 486
 487                         $call =~ s/\@HF\@/$hf/g;
 488                         $call =~ s/\@PARAM\@/$param/g;
 489                         $self->pidl_code($call);
 490                 }
 491         } elsif ($_->{TYPE} eq "SUBCONTEXT" and $l->{HEADER_SIZE} == 0xFFFFFC01) {
 492                 my $varswitch;
 493                 if (has_property($e, "switch_is")) {
 494                         $varswitch = $e->{PROPERTIES}->{switch_is};
 495                 }
 496                 my $num_bits = 32;
 497                 my $hf2 = $self->register_hf_field($hf."_", "Subcontext length", "$ifname.$pn.$_->{NAME}subcontext", "FT_UINT$num_bits", "BASE_HEX", "NULL", 0, "");
 498                 $num_bits = 3264 if ($num_bits == 32);
 499                 $self->{hf_used}->{$hf2} = 1;
 500                 $self->pidl_code("uint64_t size;");
 501                 $self->pidl_code("int conformant = di->conformant_run;");
 502                 $self->pidl_code("tvbuff_t *subtvb;");
 503                 $self->pidl_code("");
 504                 # We need to be able to dissect the length of the context in every case
 505                 # and conformant run skips the dissections of scalars ...
 506                 $self->pidl_code("if (!conformant) {");
 507                 $self->indent;
 508                 $self->pidl_code("uint32_t saved_flags = di->call_data->flags;");
 509                 $self->pidl_code("offset = dissect_ndr_uint$num_bits(tvb, offset, pinfo, tree, di, drep, $hf2, &size);");
 510                 # This is a subcontext, there is normally no such thing as
 511                 # 64 bit NDR is subcontext so we clear the flag so that we can
 512                 # continue to dissect handmarshalled stuff with pidl
 513                 $self->pidl_code("di->call_data->flags &= ~DCERPC_IS_NDR64;");
 514
 515                 $self->pidl_code("subtvb = tvb_new_subset_length_caplen(tvb, offset, (int)size, (int)size);");
 516                 if ($param ne 0) {
 517                         $self->pidl_code("$myname\_(subtvb, 0, pinfo, tree, di, drep, $param);");
 518                 } else {
 519                         $self->pidl_code("$myname\_(subtvb, 0, pinfo, tree, di, drep);");
 520                 }
 521                 $self->pidl_code("offset += (int)size;");
 522                 $self->pidl_code("di->call_data->flags = saved_flags;");
 523                 $self->deindent;
 524                 $self->pidl_code("}");
 525         } elsif ($_->{TYPE} eq "SUBCONTEXT") {
 526                 my $varswitch;
 527                 if (has_property($e, "switch_is")) {
 528                         $varswitch = $e->{PROPERTIES}->{switch_is};
 529                 }
 530                 my $num_bits = ($l->{HEADER_SIZE}*8);
 531                 if ($num_bits == 0) {
 532                         $num_bits = 32;
 533                 }
 534                 my $hf2 = $self->register_hf_field($hf."_", "Subcontext length", "$ifname.$pn.$_->{NAME}subcontext", "FT_UINT$num_bits", "BASE_HEX", "NULL", 0, "");
 535                 $num_bits = 3264 if ($num_bits == 32);
 536                 $self->{hf_used}->{$hf2} = 1;
 537                 $self->pidl_code("uint64_t size;");
 538                 $self->pidl_code("int conformant = di->conformant_run;");
 539                 $self->pidl_code("tvbuff_t *subtvb;");
 540                 $self->pidl_code("");
 541                 # We need to be able to dissect the length of the context in every case
 542                 # and conformant run skips the dissections of scalars ...
 543                 $self->pidl_code("if (!conformant) {");
 544                 $self->indent;
 545                 $self->pidl_code("uint32_t saved_flags = di->call_data->flags;");
 546                 $self->pidl_code("offset = dissect_ndr_uint$num_bits(tvb, offset, pinfo, tree, di, drep, $hf2, &size);");
 547                 # This is a subcontext, there is normally no such thing as
 548                 # 64 bit NDR is subcontext so we clear the flag so that we can
 549                 # continue to dissect handmarshalled stuff with pidl
 550                 $self->pidl_code("di->call_data->flags &= ~DCERPC_IS_NDR64;");
 551
 552                 $self->pidl_code("subtvb = tvb_new_subset_length_caplen(tvb, offset, (int)size, (int)size);");
 553                 if ($param ne 0) {
 554                         $self->pidl_code("$myname\_(subtvb, 0, pinfo, tree, di, drep, $param);");
 555                 } else {
 556                         $self->pidl_code("$myname\_(subtvb, 0, pinfo, tree, di, drep);");
 557                 }
 558                 $self->pidl_code("offset += (int)size;");
 559                 $self->pidl_code("di->call_data->flags = saved_flags;");
 560                 $self->deindent;
 561                 $self->pidl_code("}");
 562         } elsif ($_->{TYPE} eq "PIPE") {
 563                 error($e->{ORIGINAL}, "Type PIPE not yet supported");
 564         } else {
 565                 die("Unknown type `$_->{TYPE}'");
 566         }
 567 }
 568
 569 sub SwitchType($$;$)
 570 {
 571         my ($e, $type, $nodiscriminant) = @_;
 572
 573         my $switch_dt =  getType($type);
 574         my $switch_type = undef;
 575         if ($switch_dt->{DATA}->{TYPE} eq "ENUM") {
 576                 $switch_type = Parse::Pidl::Typelist::enum_type_fn($switch_dt->{DATA});
 577         } elsif ($switch_dt->{DATA}->{TYPE} eq "BITMAP") {
 578                 $switch_type = Parse::Pidl::Typelist::bitmap_type_fn($switch_dt->{DATA});
 579         } elsif ($switch_dt->{DATA}->{TYPE} eq "SCALAR") {
 580                 if (defined $e->{SWITCH_TYPE}) {
 581                         $switch_type = "$e->{SWITCH_TYPE}";
 582                 } else {
 583                         $switch_type = "$switch_dt->{DATA}->{NAME}";
 584                 }
 585         } elsif (not defined $e->{SWITCH_TYPE}) {
 586                 $switch_type = $nodiscriminant;
 587         }
 588
 589         return $switch_type
 590 }
 591
 592 sub Element($$$$$$)
 593 {
 594         my ($self,$e,$pn,$ifname,$isoruseswitch,%switchvars) = @_;
 595
 596         my $dissectorname = "$ifname\_dissect\_element\_".StripPrefixes($pn, $self->{conformance}->{strip_prefixes})."\_".StripPrefixes($e->{NAME}, $self->{conformance}->{strip_prefixes});
 597
 598         my ($call_code, $moreparam);
 599         my $l = @{$e->{LEVELS}}[0];
 600         my $param = 0;
 601         my $moreparam_once = 0;
 602         if (defined $isoruseswitch) {
 603                 my $type = $isoruseswitch->[0];
 604                 my $name = $isoruseswitch->[1];
 605
 606                 my $switch_dt =  getType($type);
 607                 my $switch_raw_type = SwitchType($e, $type, "uint32");
 608                 if (not defined($switch_raw_type)) {
 609                         die("Unknown type[$type]\n");
 610                 }
 611                 my $switch_type = mapWireScalarType(${switch_raw_type});
 612
 613                 if ($name ne "") {
 614                         if (has_property($e, "switch_is")) {
 615                                 $moreparam = ", $switch_type ".$name;
 616                         } else {
 617                                 $moreparam = ", $switch_type *".$name;
 618                         }
 619                 } else {
 620                         $moreparam = "";
 621                 }
 622                 if (($e->{PROPERTIES}->{switch_is} eq "") && ($switchvars{$name}) &&
 623                         #not a "native" type
 624                         (!($type =~ /^uint(8|16|1632|32|3264|64)/))) {
 625                         $param = $name;
 626                 } elsif ( $switch_dt->{DATA}->{TYPE} eq "ENUM") {
 627                         $param = $name;
 628                 } elsif ($name ne "") {
 629                         if (has_property($e, "switch_is")) {
 630                                 $param = $name;
 631                         } else {
 632                                 $param = "*".$name;
 633                         }
 634                 }
 635
 636                 if ($name ne "") {
 637                         if (has_property($e, "switch_is")) {
 638                                 $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep, $name);";
 639                         } else {
 640                                 $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep, &$name);";
 641                         }
 642                 } else {
 643                         $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep);";
 644                 }
 645         } elsif ($l->{IS_SURROUNDING} and $l->{IS_CONFORMANT}) {
 646                 my $cfvarname = "nga_$e->{NAME}";
 647                 $moreparam = ", struct ndr_generic_array *nga";
 648                 $moreparam_once = 1;
 649                 $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep, &$cfvarname);";
 650         } else {
 651                 $moreparam = "";
 652                 $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep);";
 653         }
 654
 655
 656         my $type = $self->find_type($e->{TYPE});
 657
 658         if (not defined($type)) {
 659                 # default settings
 660                 $type = {
 661                         MASK => 0,
 662                         VALSSTRING => "NULL",
 663                         FT_TYPE => "FT_NONE",
 664                         BASE_TYPE => "BASE_NONE"
 665                 };
 666         }
 667
 668         if (ContainsString($e)) {
 669                 $type = {
 670                         MASK => 0,
 671                         VALSSTRING => "NULL",
 672                         FT_TYPE => "FT_STRING",
 673                         BASE_TYPE => "BASE_NONE"
 674                 };
 675         }
 676         if (property_matches($e, "flag", ".*LIBNDR_FLAG_ALIGN.*")) {
 677                 my $align_flag = $e->{PROPERTIES}->{flag};
 678                 if ($align_flag =~ m/LIBNDR_FLAG_ALIGN(\d+)/) {
 679                         $call_code = "ALIGN_TO_$1_BYTES; ".$call_code;
 680                 }
 681         }
 682
 683         my $hf = $self->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}, "");
 684         $self->{hf_used}->{$hf} = 1;
 685
 686         my $eltname = StripPrefixes($pn, $self->{conformance}->{strip_prefixes}) . ".$e->{NAME}";
 687         if (defined($self->{conformance}->{noemit}->{$eltname})) {
 688                 return $call_code;
 689         }
 690
 691         my $add = "";
 692
 693         my $oldparam = undef;
 694         foreach (@{$e->{LEVELS}}) {
 695                 if (defined $_->{SWITCH_IS}) {
 696                         $oldparam = $param;
 697                         #if (($param ne "0") && (!($param =~ /\*/))) {
 698                         #       $param = "*$param";
 699                         #}
 700                 }
 701                 next if ($_->{TYPE} eq "SWITCH");
 702                 next if (defined($self->{conformance}->{noemit}->{"$dissectorname$add"}));
 703                 my $within = ContainsWithinEmbeddedPointer($e, $_);
 704                 my $saved_moreparam = $moreparam;
 705                 if ($within != 0) {
 706                         $moreparam = "";
 707                 }
 708                 $self->pidl_def("static int $dissectorname$add(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_$moreparam);");
 709                 $self->pidl_fn_start("$dissectorname$add");
 710                 $self->pidl_code("static int");
 711                 $self->pidl_code("$dissectorname$add(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_$moreparam)");
 712                 $self->pidl_code("{");
 713                 $self->indent;
 714
 715                 $moreparam = $saved_moreparam;
 716
 717                 $self->ElementLevel($e,$_,$hf,$dissectorname.$add,$pn,$ifname,$param);
 718                 if (defined $oldparam) {
 719                         $param = $oldparam;
 720                 }
 721
 722                 $self->pidl_code("");
 723                 $self->pidl_code("return offset;");
 724                 $self->deindent;
 725                 $self->pidl_code("}\n");
 726                 $self->pidl_fn_end("$dissectorname$add");
 727                 $add.="_";
 728                 $moreparam="" if $moreparam_once;
 729                 last if ($_->{TYPE} eq "ARRAY" and $_->{IS_ZERO_TERMINATED});
 730         }
 731
 732         return $call_code;
 733 }
 734
 735 sub Function($$$)
 736 {
 737         my ($self, $fn,$ifname) = @_;
 738
 739         my %dissectornames;
 740
 741         foreach (@{$fn->{ELEMENTS}}) {
 742             $dissectornames{$_->{NAME}} = $self->Element($_, $fn->{NAME}, $ifname, undef, ()) if not defined($dissectornames{$_->{NAME}});
 743         }
 744
 745         my $fn_name = $_->{NAME};
 746         $fn_name =~ s/^${ifname}_//;
 747
 748         $self->PrintIdl(DumpFunction($fn->{ORIGINAL}));
 749         $self->pidl_fn_start("$ifname\_dissect\_$fn_name\_response");
 750         $self->pidl_code("static int");
 751         $self->pidl_code("$ifname\_dissect\_${fn_name}_response(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_)");
 752         $self->pidl_code("{");
 753         $self->indent;
 754         if ( not defined($fn->{RETURN_TYPE})) {
 755         } elsif ($fn->{RETURN_TYPE} eq "NTSTATUS" or $fn->{RETURN_TYPE} eq "WERROR" or $fn->{RETURN_TYPE} eq "HRESULT")
 756         {
 757                 $self->pidl_code("uint32_t status;\n");
 758         } elsif (my $type = getType($fn->{RETURN_TYPE})) {
 759                 if ($type->{DATA}->{TYPE} eq "ENUM") {
 760                         $self->pidl_code(Parse::Pidl::Typelist::enum_type_fn($type->{DATA}) . "_t status;\n");
 761                 } elsif ($type->{DATA}->{TYPE} eq "SCALAR") {
 762                         $self->pidl_code(mapWireScalarType($fn->{RETURN_TYPE}) . " status;\n");
 763                 } else {
 764                         error($fn, "return type `$fn->{RETURN_TYPE}' not yet supported");
 765                 }
 766         } else {
 767                 error($fn, "unknown return type `$fn->{RETURN_TYPE}'");
 768         }
 769
 770         $self->pidl_code("di->dcerpc_procedure_name=\"${fn_name}\";");
 771         foreach (@{$fn->{ELEMENTS}}) {
 772                 if (grep(/out/,@{$_->{DIRECTION}})) {
 773                         $self->pidl_code("$dissectornames{$_->{NAME}}");
 774                         $self->pidl_code("offset = dissect_deferred_pointers(pinfo, tvb, offset, di, drep);");
 775                         $self->pidl_code("");
 776                 }
 777         }
 778
 779         if (not defined($fn->{RETURN_TYPE})) {
 780         } elsif ($fn->{RETURN_TYPE} eq "NTSTATUS") {
 781                 $self->pidl_code("offset = dissect_ntstatus(tvb, offset, pinfo, tree, di, drep, hf\_$ifname\_status, &status);\n");
 782                 $self->pidl_code("if (status != 0)");
 783                 $self->pidl_code("\tcol_append_fstr(pinfo->cinfo, COL_INFO, \", Error: %s\", val_to_str_ext(status, &NT_errors_ext, \"Unknown NT status 0x%08x\"));\n");
 784                 $return_types{$ifname}->{"status"} = ["NTSTATUS", "NT Error"];
 785         } elsif ($fn->{RETURN_TYPE} eq "WERROR") {
 786                 $self->pidl_code("offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep, hf\_$ifname\_werror, &status);\n");
 787                 $self->pidl_code("if (status != 0)");
 788                 $self->pidl_code("\tcol_append_fstr(pinfo->cinfo, COL_INFO, \", Error: %s\", val_to_str_ext(status, &WERR_errors_ext, \"Unknown DOS error 0x%08x\"));\n");
 789
 790                 $return_types{$ifname}->{"werror"} = ["WERROR", "Windows Error"];
 791         } elsif ($fn->{RETURN_TYPE} eq "HRESULT") {
 792                 $self->pidl_code("offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep, hf\_$ifname\_hresult, &status);\n");
 793                 $self->pidl_code("if (status != 0)");
 794                 $self->pidl_code("\tcol_append_fstr(pinfo->cinfo, COL_INFO, \", Error: %s\", val_to_str_ext(status, &HRES_errors_ext, \"Unknown HRES error 0x%08x\"));\n");
 795                 $return_types{$ifname}->{"hresult"} = ["HRESULT", "HRES Windows Error"];
 796         } elsif (my $type = getType($fn->{RETURN_TYPE})) {
 797                 if ($type->{DATA}->{TYPE} eq "ENUM") {
 798                         my $return_dissect = "dissect_ndr_" .Parse::Pidl::Typelist::enum_type_fn($type->{DATA});
 799
 800                         $self->pidl_code("offset = $return_dissect(tvb, offset, pinfo, tree, di, drep, hf\_$ifname\_$fn->{RETURN_TYPE}_status, &status);");
 801                         $self->pidl_code("if (status != 0)");
 802                         $self->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");
 803                         $return_types{$ifname}->{$fn->{RETURN_TYPE}."_status"} = [$fn->{RETURN_TYPE}, $fn->{RETURN_TYPE}];
 804                 } elsif ($type->{DATA}->{TYPE} eq "SCALAR") {
 805                         $self->pidl_code("offset = dissect_ndr_$fn->{RETURN_TYPE}(tvb, offset, pinfo, tree, di, drep, hf\_$ifname\_$fn->{RETURN_TYPE}_status, &status);");
 806                         $self->pidl_code("if (status != 0)");
 807                         $self->pidl_code("\tcol_append_fstr(pinfo->cinfo, COL_INFO, \", Status: %d\", status);\n");
 808                         $return_types{$ifname}->{$fn->{RETURN_TYPE}."_status"} = [$fn->{RETURN_TYPE}, $fn->{RETURN_TYPE}];
 809                 }
 810         }
 811
 812         $self->pidl_code("return offset;");
 813         $self->deindent;
 814         $self->pidl_code("}\n");
 815         $self->pidl_fn_end("$ifname\_dissect\_$fn_name\_response");
 816
 817         $self->pidl_fn_start("$ifname\_dissect\_$fn_name\_request");
 818         $self->pidl_code("static int");
 819         $self->pidl_code("$ifname\_dissect\_${fn_name}_request(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_)");
 820         $self->pidl_code("{");
 821         $self->indent;
 822         $self->pidl_code("di->dcerpc_procedure_name=\"${fn_name}\";");
 823         foreach (@{$fn->{ELEMENTS}}) {
 824                 if (grep(/in/,@{$_->{DIRECTION}})) {
 825                         $self->pidl_code("$dissectornames{$_->{NAME}}");
 826                         $self->pidl_code("offset = dissect_deferred_pointers(pinfo, tvb, offset, di, drep);");
 827                 }
 828
 829         }
 830
 831         $self->pidl_code("return offset;");
 832         $self->deindent;
 833         $self->pidl_code("}\n");
 834         $self->pidl_fn_end("$ifname\_dissect\_$fn_name\_request");
 835 }
 836
 837 sub Struct($$$$)
 838 {
 839         my ($self,$e,$name,$ifname) = @_;
 840         my $dissectorname = "$ifname\_dissect\_struct\_".StripPrefixes($name, $self->{conformance}->{strip_prefixes});
 841
 842         return if (defined($self->{conformance}->{noemit}->{StripPrefixes($name, $self->{conformance}->{strip_prefixes})}));
 843
 844         $self->register_ett("ett_$ifname\_$name");
 845
 846         my $res = "";
 847         my $paramsrefs = {};
 848         # will contain the switch var declaration;
 849         my $vars = [];
 850         my %paramshash;
 851         foreach (@{$e->{ELEMENTS}}) {
 852                 my $paramvar = undef;
 853
 854                 if (has_property($_, "switch_is")) {
 855                         $paramvar = $_->{PROPERTIES}->{switch_is};
 856                 }
 857
 858                 if ($_->{LEVELS}[0]{IS_INLINE}) {
 859                         $paramvar = $_->{LEVELS}[0]{SIZE_IS};
 860                 }
 861
 862                 if (defined($paramvar)) {
 863                         $paramsrefs->{$paramvar} = [];
 864                         $paramshash{$paramvar} = $paramvar;
 865                 }
 866 #$VAR1 = {
 867 #          'IS_CONFORMANT' => 0,
 868 #          'IS_DEFERRED' => 0,
 869 #          'IS_FIXED' => 0,
 870 #          'IS_INLINE' => 1,
 871 #          'IS_SURROUNDING' => 0,
 872 #          'IS_TO_NULL' => 0,
 873 #          'IS_VARYING' => 0,
 874 #          'IS_ZERO_TERMINATED' => 0,
 875 #          'LENGTH_IS' => 'name_len',
 876 #          'LEVEL_INDEX' => 0,
 877 #          'SIZE_IS' => 'name_len',
 878 #          'TYPE' => 'ARRAY'
 879 #        };
 880
 881         }
 882         foreach (@{$e->{ELEMENTS}}) {
 883                 my $paraminfo = undef;
 884
 885                 my $v = $_->{NAME};
 886                 if (scalar(grep {/^$v$/} keys(%$paramsrefs)) == 1) {
 887                         # This element is one of the switch attribute
 888                         my $switch_raw_type = SwitchType($e, $_->{TYPE}, "uint32");
 889                         if (not defined($switch_raw_type)) {
 890                                 die("Unknown type[$_->{TYPE}]\n");
 891                         }
 892                         my $switch_type = mapWireScalarType(${switch_raw_type});
 893
 894                         if ($switch_type ne "") {
 895                                 push @$vars, "$switch_type $v = 0;";
 896                         }
 897                         $paraminfo = [ $_->{TYPE}, $v ];
 898                         $paramsrefs->{$v} = $paraminfo;
 899                 }
 900
 901                 my $paramvar = undef;
 902                 if (has_property($_, "switch_is")) {
 903                         $paramvar = $_->{PROPERTIES}->{switch_is};
 904                 }
 905
 906                 if ($_->{LEVELS}[0]{IS_INLINE}) {
 907                         $paramvar = $_->{LEVELS}[0]{SIZE_IS};
 908                 }
 909
 910                 if (defined($paramvar)) {
 911                         $paraminfo = $paramsrefs->{$paramvar};
 912                 }
 913
 914                 $res.="\t".$self->Element($_, $name, $ifname, $paraminfo, %paramshash)."\n\n";
 915         }
 916
 917         my $doalign = undef;
 918         if ($e->{ALIGN} > 1 and not property_matches($e, "flag", ".*LIBNDR_FLAG_NOALIGN.*")) {
 919                 $doalign = 1;
 920         } elsif (property_matches($e, "flag", ".*LIBNDR_FLAG_NOALIGN.*")) {
 921                 $doalign = 0;
 922         }
 923
 924         my $cfdissectorname = undef;
 925         my $cfvarname = undef;
 926         if (defined $e->{SURROUNDING_ELEMENT}) {
 927                 my $se = $e->{SURROUNDING_ELEMENT};
 928                 my $pn = $name;
 929                 $cfdissectorname = "$ifname\_dissect\_conformant\_".StripPrefixes($pn, $self->{conformance}->{strip_prefixes})."\_".StripPrefixes($se->{NAME}, $self->{conformance}->{strip_prefixes});
 930                 $cfvarname = "nga_$se->{NAME}";
 931                 push @$vars, "struct ndr_generic_array $cfvarname = { .is_conformant = false, };";
 932                 unless (defined($self->{conformance}->{noemit}->{"$cfdissectorname"})) {
 933
 934                         $self->pidl_def("static int $cfdissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_, struct ndr_generic_array *nga);");
 935                         $self->pidl_fn_start("$dissectorname");
 936                         $self->pidl_code("static int");
 937                         $self->pidl_code("$cfdissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_, struct ndr_generic_array *nga)");
 938                         $self->pidl_code("{");
 939                         $self->indent;
 940
 941                         $self->pidl_code("offset = dissect_ndr_conformant_array_hdr(tvb, offset, pinfo, tree, di, drep, nga);");
 942
 943                         $self->pidl_code("");
 944                         $self->pidl_code("return offset;");
 945                         $self->deindent;
 946                         $self->pidl_code("}\n");
 947                 }
 948         }
 949
 950         $self->pidl_hdr("int $dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *parent_tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_, int hf_index _U_, uint32_t param _U_);");
 951
 952         $self->pidl_fn_start($dissectorname);
 953         $self->pidl_code("int");
 954         $self->pidl_code("$dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *parent_tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_, int hf_index _U_, uint32_t param _U_)");
 955         $self->pidl_code("{");
 956         $self->indent;
 957         $self->pidl_code($_) foreach (@$vars);
 958         $self->pidl_code("proto_item *item = NULL;");
 959         if($res) {
 960                 $self->pidl_code("proto_tree *tree = NULL;");
 961         }
 962         if (defined($doalign) and $doalign == 0) {
 963                 $self->pidl_code("bool oldalign = di->no_align;");
 964         }
 965         $self->pidl_code("int old_offset;");
 966         $self->pidl_code("");
 967
 968         if (defined $cfdissectorname) {
 969                 $self->pidl_code("offset = $cfdissectorname(tvb, offset, pinfo, parent_tree, di, drep, &$cfvarname);");
 970                 $self->pidl_code("");
 971         }
 972
 973         if (defined($doalign)) {
 974                 if ($doalign == 1) {
 975                         $self->pidl_code("ALIGN_TO_$e->{ALIGN}_BYTES;");
 976                 }
 977                 if ($doalign == 0) {
 978                         $self->pidl_code("di->no_align = true;");
 979                 }
 980                 $self->pidl_code("");
 981         }
 982
 983         $self->pidl_code("old_offset = offset;");
 984         $self->pidl_code("");
 985         $self->pidl_code("if (parent_tree) {");
 986         $self->indent;
 987         $self->pidl_code("item = proto_tree_add_item(parent_tree, hf_index, tvb, offset, -1, ENC_NA);");
 988         if($res) {
 989                 $self->pidl_code("tree = proto_item_add_subtree(item, ett_$ifname\_$name);");
 990         }
 991         $self->deindent;
 992         $self->pidl_code("}");
 993         $self->pidl_code("");
 994
 995         $self->deindent;
 996         $self->pidl_code("$res");
 997         $self->indent;
 998
 999         $self->pidl_code("proto_item_set_len(item, offset-old_offset);\n");
1000         if (defined($doalign) and $doalign == 1 and not defined($e->{SURROUNDING_ELEMENT})) {
1001                 $self->pidl_code("");
1002                 $self->pidl_code("if (di->call_data->flags & DCERPC_IS_NDR64) {");
1003                 $self->indent;
1004                 $self->pidl_code("ALIGN_TO_$e->{ALIGN}_BYTES;");
1005                 $self->deindent;
1006                 $self->pidl_code("}");
1007         }
1008         if (defined($doalign) and $doalign == 0) {
1009                 $self->pidl_code("");
1010                 $self->pidl_code("di->no_align = oldalign;");
1011         }
1012         $self->pidl_code("");
1013         $self->pidl_code("return offset;");
1014         $self->deindent;
1015         $self->pidl_code("}\n");
1016         $self->pidl_fn_end($dissectorname);
1017
1018         $self->register_type($name, "offset = $dissectorname(tvb,offset,pinfo,tree,di,drep,\@HF\@,\@PARAM\@);", "FT_NONE", "BASE_NONE", 0, "NULL", 0);
1019 }
1020
1021 sub Union($$$$)
1022 {
1023         my ($self,$e,$name,$ifname) = @_;
1024
1025         my $dissectorname = "$ifname\_dissect_".StripPrefixes($name, $self->{conformance}->{strip_prefixes});
1026
1027         return if (defined($self->{conformance}->{noemit}->{StripPrefixes($name, $self->{conformance}->{strip_prefixes})}));
1028
1029         $self->register_ett("ett_$ifname\_$name");
1030
1031         my $res = "";
1032         foreach (@{$e->{ELEMENTS}}) {
1033                 $res.="\n\t\t$_->{CASE}:\n";
1034                 if ($_->{TYPE} ne "EMPTY") {
1035                         $res.="\t\t\t".$self->Element($_, $name, $ifname, undef, ())."\n";
1036                 }
1037                 $res.="\t\tbreak;\n";
1038         }
1039
1040         my $switch_type = undef;
1041         my $switch_dissect = undef;
1042         my $switch_raw_type = SwitchType($e, $e->{SWITCH_TYPE});
1043         if (defined($switch_raw_type)) {
1044                 $switch_type = mapWireScalarType(${switch_raw_type});
1045                 $switch_dissect = "dissect_ndr_${switch_raw_type}";
1046         }
1047
1048         $self->pidl_fn_start($dissectorname);
1049         $self->pidl_code("static int");
1050         $self->pidl_code("$dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *parent_tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_, int hf_index _U_, uint32_t param _U_)");
1051         $self->pidl_code("{");
1052         $self->indent;
1053         $self->pidl_code("proto_item *item = NULL;");
1054         $self->pidl_code("proto_tree *tree = NULL;");
1055         $self->pidl_code("int old_offset;");
1056         if (!defined $switch_type) {
1057                 $self->pidl_code("uint32_t level = param;");
1058         } else {
1059                 $self->pidl_code("$switch_type level;");
1060         }
1061         $self->pidl_code("");
1062
1063         $self->pidl_code("old_offset = offset;");
1064         $self->pidl_code("if (parent_tree) {");
1065         $self->indent;
1066         $self->pidl_code("tree = proto_tree_add_subtree(parent_tree, tvb, offset, -1, ett_$ifname\_$name, &item, \"$name\");");
1067         $self->deindent;
1068         $self->pidl_code("}");
1069
1070         $self->pidl_code("");
1071
1072         my $alignValue = $e->{ALIGN};
1073         if (property_matches($e, "flag", ".*LIBNDR_FLAG_ALIGN.*")) {
1074                 my $align_flag = $e->{PROPERTIES}->{flag};
1075                 if ($align_flag =~ m/LIBNDR_FLAG_ALIGN(\d+)/) {
1076                         $alignValue = $1;
1077                 }
1078         }
1079
1080         if (defined $switch_type) {
1081                 if ($alignValue > 1) {
1082                         $self->pidl_code("UNION_ALIGN_TO_".$alignValue."_BYTES;");
1083                 }
1084
1085                 $self->pidl_code("offset = $switch_dissect(tvb, offset, pinfo, tree, di, drep, hf_index, &level);");
1086         }
1087
1088         if ($alignValue > 1) {
1089                 if ($e->{IS_MS_UNION}) {
1090                         $self->pidl_code("/* ms_union is always aligned to the largest union arm*/");
1091                         $self->pidl_code("ALIGN_TO_".$alignValue."_BYTES;");
1092                 } else {
1093                         $self->pidl_code("UNION_ALIGN_TO_".$alignValue."_BYTES;");
1094                 }
1095                 $self->pidl_code("");
1096         }
1097
1098         $self->pidl_code("switch(level) {$res\t}");
1099         $self->pidl_code("proto_item_set_len(item, offset-old_offset);\n");
1100         $self->pidl_code("");
1101
1102         $self->pidl_code("return offset;");
1103         $self->deindent;
1104         $self->pidl_code("}");
1105         $self->pidl_fn_end($dissectorname);
1106
1107         $self->register_type($name, "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);", "FT_NONE", "BASE_NONE", 0, "NULL", 0);
1108 }
1109
1110 sub Const($$$)
1111 {
1112         my ($self,$const,$ifname) = @_;
1113
1114         if (!defined($const->{ARRAY_LEN}[0])) {
1115                 $self->pidl_hdr("#define $const->{NAME}\t( $const->{VALUE} )\n");
1116         } else {
1117                 $self->pidl_hdr("#define $const->{NAME}\t $const->{VALUE}\n");
1118         }
1119 }
1120
1121 sub Typedef($$$$)
1122 {
1123         my ($self,$e,$name,$ifname) = @_;
1124
1125         $self->Type($e->{DATA}, $name, $ifname);
1126 }
1127
1128 sub Type($$$$)
1129 {
1130         my ($self, $e, $name, $ifname) = @_;
1131
1132         $self->PrintIdl(DumpType($e->{ORIGINAL}));
1133         {
1134                 ENUM => \&Enum,
1135                 STRUCT => \&Struct,
1136                 UNION => \&Union,
1137                 BITMAP => \&Bitmap,
1138                 TYPEDEF => \&Typedef,
1139                 PIPE    => \&Pipe
1140         }->{$e->{TYPE}}->($self, $e, $name, $ifname);
1141 }
1142
1143 sub RegisterInterface($$)
1144 {
1145         my ($self, $x) = @_;
1146
1147         $self->pidl_fn_start("proto_register_dcerpc_$x->{NAME}");
1148         $self->pidl_code("void proto_register_dcerpc_$x->{NAME}(void)");
1149         $self->pidl_code("{");
1150         $self->indent;
1151
1152         $self->{res}->{headers} .= "void proto_register_dcerpc_$x->{NAME}(void);\n";
1153
1154         $self->{res}->{code}.=$self->DumpHfList()."\n";
1155         $self->{res}->{code}.="\n".DumpEttList($self->{ett})."\n";
1156
1157         if (defined($x->{UUID})) {
1158                 # These can be changed to non-pidl_code names if the old
1159                 # dissectors in epan/dissectors are deleted.
1160
1161                 my $name = uc($x->{NAME}) . " (pidl)";
1162                 my $short_name = uc($x->{NAME});
1163                 my $filter_name = $x->{NAME};
1164
1165                 if (has_property($x, "helpstring")) {
1166                         $name = $x->{PROPERTIES}->{helpstring};
1167                 }
1168
1169                 if (defined($self->{conformance}->{protocols}->{$x->{NAME}})) {
1170                 $short_name = $self->{conformance}->{protocols}->{$x->{NAME}}->{SHORTNAME};
1171                 $name = $self->{conformance}->{protocols}->{$x->{NAME}}->{LONGNAME};
1172                 $filter_name = $self->{conformance}->{protocols}->{$x->{NAME}}->{FILTERNAME};
1173                 }
1174
1175                 $self->pidl_code("proto_dcerpc_$x->{NAME} = proto_register_protocol(".make_str($name).", ".make_str($short_name).", ".make_str($filter_name).");");
1176
1177                 $self->pidl_code("proto_register_field_array(proto_dcerpc_$x->{NAME}, hf, array_length (hf));");
1178                 $self->pidl_code("proto_register_subtree_array(ett, array_length(ett));");
1179         } else {
1180                 $self->pidl_code("proto_dcerpc = proto_get_id_by_filter_name(\"dcerpc\");");
1181                 $self->pidl_code("proto_register_field_array(proto_dcerpc, hf, array_length(hf));");
1182                 $self->pidl_code("proto_register_subtree_array(ett, array_length(ett));");
1183         }
1184
1185         $self->deindent;
1186         $self->pidl_code("}\n");
1187         $self->pidl_fn_end("proto_register_dcerpc_$x->{NAME}");
1188 }
1189
1190 sub RegisterInterfaceHandoff($$)
1191 {
1192         my ($self,$x) = @_;
1193
1194         if (defined($x->{UUID})) {
1195                 $self->pidl_fn_start("proto_reg_handoff_dcerpc_$x->{NAME}");
1196                 $self->pidl_code("void proto_reg_handoff_dcerpc_$x->{NAME}(void)");
1197                 $self->pidl_code("{");
1198                 $self->indent;
1199                 $self->pidl_code("dcerpc_init_uuid(proto_dcerpc_$x->{NAME}, ett_dcerpc_$x->{NAME},");
1200                 $self->pidl_code("\t&uuid_dcerpc_$x->{NAME}, ver_dcerpc_$x->{NAME},");
1201                 $self->pidl_code("\t$x->{NAME}_dissectors, hf_$x->{NAME}_opnum);");
1202                 $self->deindent;
1203                 $self->pidl_code("}");
1204                 $self->pidl_fn_end("proto_reg_handoff_dcerpc_$x->{NAME}");
1205
1206                 $self->{res}->{headers} .= "void proto_reg_handoff_dcerpc_$x->{NAME}(void);\n";
1207
1208                 $self->{hf_used}->{"hf_$x->{NAME}_opnum"} = 1;
1209         }
1210 }
1211
1212 sub ProcessInclude
1213 {
1214         my $self = shift;
1215         my @includes = @_;
1216         foreach (@includes) {
1217                 $self->pidl_hdr("#include \"$_\"");
1218         }
1219         $self->pidl_hdr("");
1220 }
1221
1222 sub ProcessImport
1223 {
1224         my $self = shift;
1225         my @imports = @_;
1226         foreach (@imports) {
1227                 next if($_ eq "security");
1228                 s/^\"//;
1229                 s/\.idl"?$//;
1230                 s/^.*\///;
1231                 $self->pidl_hdr("#include \"packet-dcerpc-$_\.h\"");
1232         }
1233         $self->pidl_hdr("");
1234 }
1235
1236 sub ProcessInterface($$)
1237 {
1238         my ($self, $x) = @_;
1239
1240         push(@{$self->{conformance}->{strip_prefixes}}, $x->{NAME});
1241
1242         my $define = "__PACKET_DCERPC_" . uc($_->{NAME}) . "_H";
1243         $self->pidl_hdr("#ifndef $define");
1244         $self->pidl_hdr("#define $define");
1245         $self->pidl_hdr("");
1246
1247         $self->pidl_def("static int proto_dcerpc_$x->{NAME};");
1248         $self->register_ett("ett_dcerpc_$x->{NAME}");
1249         $self->register_hf_field("hf_$x->{NAME}_opnum", "Operation", "$x->{NAME}.opnum", "FT_UINT16", "BASE_DEC", "NULL", 0, "");
1250
1251         if (defined($x->{UUID})) {
1252                 my $if_uuid = $x->{UUID};
1253
1254                 $self->pidl_def("/* Version information */\n\n");
1255
1256                 $self->pidl_def("static e_guid_t uuid_dcerpc_$x->{NAME} = {");
1257                 $self->pidl_def("\t0x" . substr($if_uuid, 1, 8)
1258                 . ", 0x" . substr($if_uuid, 10, 4)
1259                 . ", 0x" . substr($if_uuid, 15, 4) . ",");
1260                 $self->pidl_def("\t{ 0x" . substr($if_uuid, 20, 2)
1261                 . ", 0x" . substr($if_uuid, 22, 2)
1262                 . ", 0x" . substr($if_uuid, 25, 2)
1263                 . ", 0x" . substr($if_uuid, 27, 2)
1264                 . ", 0x" . substr($if_uuid, 29, 2)
1265                 . ", 0x" . substr($if_uuid, 31, 2)
1266                 . ", 0x" . substr($if_uuid, 33, 2)
1267                 . ", 0x" . substr($if_uuid, 35, 2) . " }");
1268                 $self->pidl_def("};");
1269
1270                 my $maj = 0x0000FFFF & $x->{VERSION};
1271                 $maj =~ s/\.(.*)$//g;
1272                 $self->pidl_def("static uint16_t ver_dcerpc_$x->{NAME} = $maj;");
1273                 $self->pidl_def("");
1274         }
1275
1276         $return_types{$x->{NAME}} = {};
1277
1278         $self->Interface($x);
1279         $self->pidl_code("\n".DumpFunctionTable($x));
1280
1281         foreach (sort(keys %{$return_types{$x->{NAME}}})) {
1282                 my ($type, $desc) = @{$return_types{$x->{NAME}}->{$_}};
1283                 my $dt = $self->find_type($type);
1284                 $dt or die("Unable to find information about return type `$type'");
1285                 $self->register_hf_field("hf_$x->{NAME}_$_", $desc, "$x->{NAME}.$_", $dt->{FT_TYPE}, $dt->{BASE_TYPE}, $dt->{VALSSTRING}, 0, "");
1286                 $self->{hf_used}->{"hf_$x->{NAME}_$_"} = 1;
1287         }
1288
1289         $self->RegisterInterface($x);
1290         $self->RegisterInterfaceHandoff($x);
1291
1292         if (exists ($self->{conformance}->{header})) {
1293                 $self->pidl_hdr($self->{conformance}->{header});
1294         }
1295
1296         $self->pidl_hdr("#endif /* $define */");
1297 }
1298
1299 sub find_type($$)
1300 {
1301         my ($self, $n) = @_;
1302
1303         return $self->{conformance}->{types}->{$n};
1304 }
1305
1306 sub register_type($$$$$$$$)
1307 {
1308         my ($self, $type,$call,$ft,$base,$mask,$vals,$length) = @_;
1309
1310         return if (defined($self->{conformance}->{types}->{$type}));
1311
1312         $self->{conformance}->{types}->{$type} = {
1313                 NAME => $type,
1314                 DISSECTOR_NAME => $call,
1315                 FT_TYPE => $ft,
1316                 BASE_TYPE => $base,
1317                 MASK => $mask,
1318                 VALSSTRING => $vals,
1319                 ALIGNMENT => $length
1320         };
1321 }
1322
1323 # Loads the default types
1324 sub Initialize($$)
1325 {
1326         my ($self, $cnf_file) = @_;
1327
1328         $self->{conformance} = {
1329                 imports => {},
1330                 header_fields=> {}
1331         };
1332
1333         ReadConformance($cnf_file, $self->{conformance}) or print STDERR "warning: No conformance file `$cnf_file'\n";
1334
1335         foreach my $bytes (qw(1 2 4 8)) {
1336                 my $bits = $bytes * 8;
1337                 $self->register_type("uint$bits", "offset = PIDL_dissect_uint$bits(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);", "FT_UINT$bits", "BASE_DEC", 0, "NULL", $bytes);
1338                 $self->register_type("int$bits", "offset = PIDL_dissect_uint$bits(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);", "FT_INT$bits", "BASE_DEC", 0, "NULL", $bytes);
1339         }
1340
1341         $self->register_type("uint3264", "offset = dissect_ndr_uint3264(tvb, offset, pinfo, tree, di, drep, \@HF\@, NULL);", "FT_UINT32", "BASE_DEC", 0, "NULL", 8);
1342         $self->register_type("hyper", "offset = dissect_ndr_uint64(tvb, offset, pinfo, tree, di, drep, \@HF\@, NULL);", "FT_UINT64", "BASE_DEC", 0, "NULL", 8);
1343         $self->register_type("int64", "offset = dissect_ndr_uint64(tvb, offset, pinfo, tree, di, drep, \@HF\@, NULL);", "FT_INT64", "BASE_DEC", 0, "NULL", 8);
1344         $self->register_type("udlong", "offset = dissect_ndr_duint32(tvb, offset, pinfo, tree, di, drep, \@HF\@, NULL);", "FT_UINT64", "BASE_DEC", 0, "NULL", 4);
1345         $self->register_type("bool8", "offset = PIDL_dissect_uint8(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);","FT_INT8", "BASE_DEC", 0, "NULL", 1);
1346         $self->register_type("char", "offset = PIDL_dissect_uint8(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);","FT_INT8", "BASE_DEC", 0, "NULL", 1);
1347         $self->register_type("long", "offset = PIDL_dissect_uint32(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);","FT_INT32", "BASE_DEC", 0, "NULL", 4);
1348         $self->register_type("dlong", "offset = dissect_ndr_duint32(tvb, offset, pinfo, tree, di, drep, \@HF\@, NULL);","FT_INT64", "BASE_DEC", 0, "NULL", 8);
1349         $self->register_type("GUID", "offset = dissect_ndr_uuid_t(tvb, offset, pinfo, tree, di, drep, \@HF\@, NULL);","FT_GUID", "BASE_NONE", 0, "NULL", 4);
1350         $self->register_type("policy_handle", "offset = PIDL_dissect_policy_hnd(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);","FT_BYTES", "BASE_NONE", 0, "NULL", 4);
1351         $self->register_type("NTTIME", "offset = dissect_ndr_nt_NTTIME(tvb, offset, pinfo, tree, di, drep, \@HF\@);","FT_ABSOLUTE_TIME", "ABSOLUTE_TIME_LOCAL", 0, "NULL", 4);
1352         $self->register_type("NTTIME_hyper", "offset = dissect_ndr_nt_NTTIME_hyper(tvb, offset, pinfo, tree, di, drep, \@HF\@);","FT_ABSOLUTE_TIME", "ABSOLUTE_TIME_LOCAL", 0, "NULL", 4);
1353         $self->register_type("time_t", "offset = dissect_ndr_time_t(tvb, offset, pinfo,tree, di, drep, \@HF\@, NULL);","FT_ABSOLUTE_TIME", "ABSOLUTE_TIME_LOCAL", 0, "NULL", 4);
1354         $self->register_type("NTTIME_1sec", "offset = dissect_ndr_nt_NTTIME_1sec(tvb, offset, pinfo, tree, di, drep, \@HF\@);", "FT_ABSOLUTE_TIME", "ABSOLUTE_TIME_LOCAL", 0, "NULL", 4);
1355         $self->register_type("dom_sid28",
1356                 "offset = dissect_ndr_nt_SID28(tvb, offset, pinfo, tree, di, drep, \@HF\@);", "FT_STRING", "BASE_NONE", 0, "NULL", 4);
1357         $self->register_type("SID",
1358                 "offset = dissect_ndr_nt_SID_with_options(tvb, offset, pinfo, tree, di, drep, param, \@HF\@);","FT_STRING", "BASE_NONE", 0, "NULL", 4);
1359         $self->register_type("WERROR",
1360                 "offset = PIDL_dissect_uint32(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);","FT_UINT32", "BASE_HEX|BASE_EXT_STRING", 0, "&WERR_errors_ext", 4);
1361         $self->register_type("NTSTATUS",
1362                 "offset = PIDL_dissect_uint32(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);","FT_UINT32", "BASE_HEX|BASE_EXT_STRING", 0, "&NT_errors_ext", 4);
1363         $self->register_type("HRESULT",
1364                 "offset = PIDL_dissect_uint32(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);","FT_UINT32", "BASE_HEX|BASE_EXT_STRING", 0, "&HRES_errors_ext", 4);
1365         $self->register_type("ipv6address", "proto_tree_add_item(tree, \@HF\@, tvb, offset, 16, ENC_NA); offset += 16;", "FT_IPv6", "BASE_NONE", 0, "NULL", 16);
1366         $self->register_type("ipv4address", "proto_tree_add_item(tree, \@HF\@, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4;", "FT_IPv4", "BASE_NONE", 0, "NULL", 4);
1367
1368 }
1369
1370 #####################################################################
1371 # Generate Wireshark parser and header code
1372 sub Parse($$$$$)
1373 {
1374         my($self,$ndr,$idl_file,$h_filename,$cnf_file) = @_;
1375
1376         $self->Initialize($cnf_file);
1377
1378         return (undef, undef) if defined($self->{conformance}->{noemit_dissector});
1379
1380         my $notice =
1381 "/* DO NOT EDIT
1382         This file was automatically generated by Pidl
1383         from $idl_file and $cnf_file.
1384
1385         Pidl is a perl based IDL compiler for DCE/RPC idl files.
1386         It is maintained by the Samba team, not the Wireshark team.
1387         Instructions on how to download and install Pidl can be
1388         found at https://wiki.wireshark.org/Pidl
1389 */
1390
1391 ";
1392
1393         $self->{res}->{headers} = "\n";
1394         $self->{res}->{headers} .= "#include \"config.h\"\n";
1395
1396         $self->{res}->{headers} .= "#include <string.h>\n";
1397         $self->{res}->{headers} .= "#include <wsutil/array.h>\n";
1398         $self->{res}->{headers} .= "#include <epan/packet.h>\n";
1399         $self->{res}->{headers} .= "#include <epan/tfs.h>\n\n";
1400
1401         $self->{res}->{headers} .= "#include \"packet-dcerpc.h\"\n";
1402         $self->{res}->{headers} .= "#include \"packet-dcerpc-nt.h\"\n";
1403         $self->{res}->{headers} .= "#include \"packet-windows-common.h\"\n";
1404
1405         my $h_basename = basename($h_filename);
1406
1407         $self->{res}->{headers} .= "#include \"$h_basename\"\n";
1408         $self->pidl_code("");
1409
1410         if (defined($self->{conformance}->{ett})) {
1411                 register_ett($self,$_) foreach(@{$self->{conformance}->{ett}})
1412         }
1413
1414         # Wireshark protocol registration
1415
1416         foreach (@$ndr) {
1417                 $self->ProcessInterface($_) if ($_->{TYPE} eq "INTERFACE");
1418                 $self->ProcessImport(@{$_->{PATHS}}) if ($_->{TYPE} eq "IMPORT");
1419                 $self->ProcessInclude(@{$_->{PATHS}}) if ($_->{TYPE} eq "INCLUDE");
1420         }
1421
1422         $self->{res}->{ett} = DumpEttDeclaration($self->{ett});
1423         $self->{res}->{hf} = $self->DumpHfDeclaration();
1424
1425         my $parser = $notice;
1426         $parser.= $self->{res}->{headers};
1427         $parser.=$self->{res}->{ett};
1428         $parser.=$self->{res}->{hf};
1429         $parser.=$self->{res}->{def};
1430         if (exists ($self->{conformance}->{override})) {
1431                 $parser.=$self->{conformance}->{override};
1432         }
1433         $parser.=$self->{res}->{code};
1434
1435         my $header = $notice;
1436         $header.=$self->{res}->{hdr};
1437
1438         $self->CheckUsed($self->{conformance});
1439
1440         return ($parser,$header);
1441 }
1442
1443 ###############################################################################
1444 # ETT
1445 ###############################################################################
1446
1447 sub register_ett($$)
1448 {
1449         my ($self, $name) = @_;
1450
1451         push (@{$self->{ett}}, $name);
1452 }
1453
1454 sub DumpEttList
1455 {
1456         my ($ett) = @_;
1457         my $res = "\tstatic int *ett[] = {\n";
1458         foreach (@$ett) {
1459                 $res .= "\t\t&$_,\n";
1460         }
1461
1462         return "$res\t};\n";
1463 }
1464
1465 sub DumpEttDeclaration
1466 {
1467         my ($ett) = @_;
1468         my $res = "\n/* Ett declarations */\n";
1469         foreach (@$ett) {
1470                 $res .= "static int $_;\n";
1471         }
1472
1473         return "$res\n";
1474 }
1475
1476 ###############################################################################
1477 # HF
1478 ###############################################################################
1479
1480 sub register_hf_field($$$$$$$$$)
1481 {
1482         my ($self,$index,$name,$filter_name,$ft_type,$base_type,$valsstring,$mask,$blurb) = @_;
1483
1484         if (defined ($self->{conformance}->{hf_renames}->{$index})) {
1485                 $self->{conformance}->{hf_renames}->{$index}->{USED} = 1;
1486                 return $self->{conformance}->{hf_renames}->{$index}->{NEWNAME};
1487         }
1488
1489         $self->{conformance}->{header_fields}->{$index} = {
1490                 INDEX => $index,
1491                 NAME => $name,
1492                 FILTER => $filter_name,
1493                 FT_TYPE => $ft_type,
1494                 BASE_TYPE => $base_type,
1495                 VALSSTRING => $valsstring,
1496                 MASK => $mask,
1497                 BLURB => $blurb
1498         };
1499
1500         if ((not defined($blurb) or $blurb eq "") and
1501                         defined($self->{conformance}->{fielddescription}->{$index})) {
1502                 $self->{conformance}->{header_fields}->{$index}->{BLURB} =
1503                         $self->{conformance}->{fielddescription}->{$index}->{DESCRIPTION};
1504                 $self->{conformance}->{fielddescription}->{$index}->{USED} = 1;
1505         }
1506
1507         return $index;
1508 }
1509
1510 sub change_hf_field_type($$$$)
1511 {
1512         my ($self,$index,$ft_type,$base_type) = @_;
1513         if (defined ($self->{conformance}->{hf_renames}->{$index})) {
1514                 print "Field $index has been renamed to ".$self->{conformance}->{hf_renames}->{$index}->{NEWNAME}." you can't change it's type";
1515                 return 0;
1516         }
1517
1518         if (!defined ($self->{conformance}->{header_fields}->{$index})) {
1519                 print "Field $index doesn't exists";
1520                 return 0;
1521         }
1522         $self->{conformance}->{header_fields}->{$index}->{FT_TYPE} = $ft_type;
1523         $self->{conformance}->{header_fields}->{$index}->{BASE_TYPE} = $base_type;
1524         return 1;
1525 }
1526
1527 sub DumpHfDeclaration($)
1528 {
1529         my ($self) = @_;
1530         my $res = "";
1531
1532         $res = "\n/* Header field declarations */\n";
1533
1534         foreach (sort(keys %{$self->{conformance}->{header_fields}}))
1535         {
1536                 $res .= "static int $_;\n";
1537         }
1538
1539         return "$res\n";
1540 }
1541
1542 sub make_str_or_null($)
1543 {
1544         my $str = shift;
1545         if (substr($str, 0, 1) eq "\"") {
1546                 $str = substr($str, 1, length($str)-2);
1547         }
1548         $str =~ s/^\s*//;
1549         $str =~ s/\s*$//;
1550         if ($str eq "") {
1551                 return "NULL";
1552         }
1553         return make_str($str);
1554 }
1555
1556 sub DumpHfList($)
1557 {
1558         my ($self) = @_;
1559         my $res = "\tstatic hf_register_info hf[] = {\n";
1560
1561         foreach (sort {$a->{INDEX} cmp $b->{INDEX}} values %{$self->{conformance}->{header_fields}})
1562         {
1563                 $res .= "\t{ &$_->{INDEX},\n".
1564                 "\t  { ".make_str($_->{NAME}).", ".make_str($_->{FILTER}).", $_->{FT_TYPE}, $_->{BASE_TYPE}, $_->{VALSSTRING}, $_->{MASK}, ".make_str_or_null($_->{BLURB}).", HFILL }},\n";
1565         }
1566
1567         return $res."\t};\n";
1568 }
1569
1570
1571 ###############################################################################
1572 # Function table
1573 ###############################################################################
1574
1575 sub DumpFunctionTable($)
1576 {
1577         my $if = shift;
1578
1579         my $res = "static const dcerpc_sub_dissector $if->{NAME}\_dissectors[] = {\n";
1580         foreach (@{$if->{FUNCTIONS}}) {
1581                 my $fn_name = $_->{NAME};
1582                 $fn_name =~ s/^$if->{NAME}_//;
1583                 $res.= "\t{ $_->{OPNUM}, \"$fn_name\",\n";
1584                 $res.= "\t   $if->{NAME}_dissect_${fn_name}_request, $if->{NAME}_dissect_${fn_name}_response},\n";
1585         }
1586
1587         $res .= "\t{ 0, NULL, NULL, NULL }\n";
1588
1589         return "$res};\n";
1590 }
1591
1592 sub CheckUsed($$)
1593 {
1594         my ($self, $conformance) = @_;
1595         foreach (values %{$conformance->{header_fields}}) {
1596                 if (not defined($self->{hf_used}->{$_->{INDEX}})) {
1597                         warning($_->{POS}, "hf field `$_->{INDEX}' not used");
1598                 }
1599         }
1600
1601         foreach (values %{$conformance->{hf_renames}}) {
1602                 if (not $_->{USED}) {
1603                         warning($_->{POS}, "hf field `$_->{OLDNAME}' not used");
1604                 }
1605         }
1606
1607         foreach (values %{$conformance->{dissectorparams}}) {
1608                 if (not $_->{USED}) {
1609                         warning($_->{POS}, "dissector param never used");
1610                 }
1611         }
1612
1613         foreach (values %{$conformance->{imports}}) {
1614                 if (not $_->{USED}) {
1615                         warning($_->{POS}, "import never used");
1616                 }
1617         }
1618
1619         foreach (values %{$conformance->{types}}) {
1620                 if (not $_->{USED} and defined($_->{POS})) {
1621                         warning($_->{POS}, "type never used");
1622                 }
1623         }
1624
1625         foreach (values %{$conformance->{fielddescription}}) {
1626                 if (not $_->{USED}) {
1627                         warning($_->{POS}, "description never used");
1628                 }
1629         }
1630
1631         foreach (values %{$conformance->{tfs}}) {
1632                 if (not $_->{USED}) {
1633                         warning($_->{POS}, "True/False description never used");
1634                 }
1635         }
1636 }
1637
1638 1;