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 $dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, dcerpc_info* di _U_, uint8_t *drep _U_, int hf_index _U_, uint32_t *param _U_, " . mapWireScalarType($e->{BASE_TYPE}) ." *pval _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_, guint32 param _U_, " . mapWireScalarType($e->{BASE_TYPE}) . " *pval _U_)");
 207         $self->pidl_code("{");
 208         $self->indent;
 209         $self->pidl_code("return PIDL_dissect_$e->{BASE_TYPE}_val(tvb, offset, pinfo, tree, di, drep, hf_index, param, pval);");
 210         $self->deindent;
 211         $self->pidl_code("}\n");
 212         $self->pidl_fn_end($dissectorname);
 213
 214         my $enum_size = $e->{BASE_TYPE};
 215         $enum_size =~ s/uint//g;
 216         my $ws_base = "BASE_DEC";
 217         $ws_base = "BASE_HEX" if (property_matches($e, "flag", ".*LIBNDR_PRINT_ARRAY_HEX.*"));
 218         $self->register_type($name, "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@, \@VALUEREF\@);", "FT_UINT$enum_size", $ws_base, "0", "VALS($valsstring)", $enum_size / 8);
 219 }
 220
 221 sub Pipe($$$$)
 222 {
 223         my ($self,$e,$name,$ifname) = @_;
 224         error($e->{ORIGINAL}, "Pipe not yet supported");
 225         return;
 226 }
 227
 228 sub Bitmap($$$$)
 229 {
 230         my ($self,$e,$name,$ifname) = @_;
 231         my $dissectorname = "$ifname\_dissect\_bitmap\_".StripPrefixes($name, $self->{conformance}->{strip_prefixes});
 232         my $element_count = 0;
 233         my $total_ev = 0;
 234
 235         $self->register_ett("ett_$ifname\_$name");
 236
 237         $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_, uint32_t *pval _U_);");
 238
 239         $self->pidl_fn_start($dissectorname);
 240         $self->pidl_code("int");
 241         $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_, uint32_t *pval _U_)");
 242         $self->pidl_code("{");
 243         $self->indent;
 244         foreach (@{$e->{ELEMENTS}}) {
 245                 next unless (/([^ ]*) (.*)/);
 246                 $element_count++;
 247         }
 248         if ($element_count > 0) {
 249                 $self->pidl_code("proto_item *item;");
 250                 $self->pidl_code("static int * const $ifname\_$name\_fields[] = {");
 251                 $self->indent;
 252                 foreach (@{$e->{ELEMENTS}}) {
 253                         next unless (/([^ ]*) (.*)/);
 254                         my ($en,$ev) = ($1,$2);
 255                         my $hf_bitname = "hf_$ifname\_$name\_$1";
 256
 257                         $ev =~ s/[()\s]//g;
 258                         if (hex($ev) != 0) {
 259                                 $total_ev += hex($ev);
 260                                 $self->pidl_code("&$hf_bitname,");
 261                         }
 262                 }
 263                 $self->pidl_code("NULL");
 264                 $self->deindent;
 265                 $self->pidl_code("};");
 266         }
 267
 268         $self->pidl_code(mapWireScalarType($e->{BASE_TYPE}) . " flags;");
 269         if ($e->{ALIGN} > 1) {
 270                 $self->pidl_code("ALIGN_TO_$e->{ALIGN}_BYTES;");
 271         }
 272
 273         $self->pidl_code("");
 274
 275         if ($element_count > 0) {
 276                 $self->pidl_code("item = proto_tree_add_bitmask_with_flags(parent_tree, tvb, offset, hf_index,");
 277                 $self->pidl_code("\t\t\tett_$ifname\_$name, $ifname\_$name\_fields, DREP_ENC_INTEGER(drep), BMT_NO_FALSE);");
 278                 $self->pidl_code("");
 279
 280                 $self->pidl_code("offset = dissect_ndr_$e->{BASE_TYPE}(tvb, offset, pinfo, parent_tree, di, drep, -1, &flags);");
 281                 $self->pidl_code("");
 282
 283                 $self->pidl_code("if (!flags)");
 284                 $self->pidl_code("\tproto_item_append_text(item, \": (No values set)\");\n");
 285         } else {
 286                 $self->pidl_code("proto_tree_add_item(parent_tree, hf_index, tvb, offset, $e->{ALIGN}, DREP_ENC_INTEGER(drep));");
 287                 $self->pidl_code("");
 288
 289                 $self->pidl_code("offset = dissect_ndr_$e->{BASE_TYPE}(tvb, offset, pinfo, parent_tree, di, drep, -1, &flags);");
 290                 $self->pidl_code("");
 291         }
 292
 293         foreach (@{$e->{ELEMENTS}}) {
 294                 next unless (/([^ ]*) (.*)/);
 295                 my ($en,$ev) = ($1,$2);
 296                 my $hf_bitname = "hf_$ifname\_$name\_$en";
 297                 my $filtername = "$ifname\.$name\.$en";
 298
 299                 $self->{hf_used}->{$hf_bitname} = 1;
 300
 301                 $ev =~ s/[()\s]//g;
 302                 if (hex($ev) != 0) {
 303                         $self->register_hf_field($hf_bitname, field2name($en), $filtername, "FT_BOOLEAN", $e->{ALIGN} * 8, "TFS(&$name\_$en\_tfs)", "( $ev )", "");
 304
 305                         $self->pidl_def("static const true_false_string $name\_$en\_tfs = {");
 306                         if (defined($self->{conformance}->{tfs}->{$hf_bitname})) {
 307                                 $self->pidl_def("   $self->{conformance}->{tfs}->{$hf_bitname}->{TRUE_STRING},");
 308                                 $self->pidl_def("   $self->{conformance}->{tfs}->{$hf_bitname}->{FALSE_STRING},");
 309                                 $self->{conformance}->{tfs}->{$hf_bitname}->{USED} = 1;
 310                         } else {
 311                                 $self->pidl_def("   \"$en is SET\",");
 312                                 $self->pidl_def("   \"$en is NOT SET\",");
 313                         }
 314                         $self->pidl_def("};");
 315                 }
 316         }
 317
 318         # Note that if bitmask is full, some compilers would complain about flags &= (~0xffffffff)
 319         if ($element_count > 0 && $element_count < 32) {
 320                 my $total_ev_hex = sprintf("0x%08x", $total_ev);
 321                 $self->pidl_code("if (flags & (~$total_ev_hex)) {");
 322                 $self->pidl_code("\tflags &= (~$total_ev_hex);");
 323                 $self->pidl_code("\tproto_item_append_text(item, \"Unknown bitmap value 0x%x\", flags);");
 324                 $self->pidl_code("}\n");
 325         }
 326         $self->pidl_code("return offset;");
 327         $self->deindent;
 328         $self->pidl_code("}\n");
 329         $self->pidl_fn_end($dissectorname);
 330
 331         my $size = $e->{BASE_TYPE};
 332         $size =~ s/uint//g;
 333         $self->register_type($name, "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@, \@VALUEREF\@);", "FT_UINT$size", "BASE_HEX", "0", "NULL", $size/8);
 334 }
 335
 336 sub ElementLevel($$$$$$$$)
 337 {
 338         my ($self,$e,$l,$hf,$myname,$pn,$ifname,$param) = @_;
 339
 340         if (defined($self->{conformance}->{dissectorparams}->{$myname})) {
 341                 $param = $self->{conformance}->{dissectorparams}->{$myname}->{PARAM};
 342         }
 343
 344         if ($l->{TYPE} eq "POINTER") {
 345                 my $type;
 346                 my $nl = undef;
 347                 if ($l->{LEVEL} eq "TOP") {
 348                         $type = "toplevel";
 349                 } elsif ($l->{LEVEL} eq "EMBEDDED") {
 350                         $type = "embedded";
 351                         $nl = GetNextLevel($e,$l);
 352                 }
 353
 354                 if (defined($nl) and $nl->{TYPE} eq "SWITCH") {
 355                         $self->pidl_code("guint64 saved_switch_level = di->switch_level;");
 356                         $self->pidl_code("");
 357                         $self->pidl_code("di->switch_level = $param;");
 358                         $self->pidl_code("");
 359                 }
 360
 361                 $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);");
 362                 if (defined($nl) and $nl->{TYPE} eq "SWITCH") {
 363                         $self->pidl_code("");
 364                         $self->pidl_code("di->switch_level = saved_switch_level;");
 365                 }
 366         } elsif ($l->{TYPE} eq "ARRAY") {
 367                 if ($l->{IS_INLINE}) {
 368                         #print Parse::Pidl::Util::MyDumper($e);
 369                         #print Parse::Pidl::Util::MyDumper($l);
 370                         print Parse::Pidl::Util::MyDumper($param);
 371                         $self->pidl_code("/* TODO $myname IS_INLINE */");
 372                         error($e->{ORIGINAL}, "Inline arrays not supported");
 373                 } elsif ($l->{IS_FIXED}) {
 374                         $self->pidl_code("int i;");
 375                         $self->pidl_code("for (i = 0; i < $l->{SIZE_IS}; i++)");
 376                         $self->pidl_code("\toffset = $myname\_(tvb, offset, pinfo, tree, di, drep);");
 377                 } else {
 378                         if ($l->{IS_ZERO_TERMINATED}) {
 379                                 $self->pidl_code("char *data = NULL;");
 380                         }
 381                         my $ngavar = "nga";
 382                         if (!$l->{IS_SURROUNDING}) {
 383                                 $self->pidl_code("struct ndr_generic_array nga = { .is_conformant = FALSE, };");
 384                                 $ngavar = "&nga";
 385                         }
 386                         if (!$l->{IS_SURROUNDING} and $l->{IS_CONFORMANT}) {
 387                                 $self->pidl_code("");
 388                                 $self->pidl_code("offset = dissect_ndr_conformant_array_hdr(tvb, offset, pinfo, tree, di, drep, $ngavar);");
 389                         }
 390                         if ($l->{IS_VARYING}) {
 391                                 $self->pidl_code("");
 392                                 $self->pidl_code("offset = dissect_ndr_varying_array_hdr(tvb, offset, pinfo, tree, di, drep, $ngavar);");
 393                         }
 394
 395                         unless ($l->{IS_ZERO_TERMINATED}) {
 396                                 $self->pidl_code("");
 397                                 $self->pidl_code("offset = dissect_ndr_generic_array_bytes(tvb, offset, pinfo, tree, di, drep, $ngavar, $myname\_);");
 398                         } else {
 399                                 my $nl = GetNextLevel($e,$l);
 400                                 my $nl_ctype = mapScalarType($nl->{DATA_TYPE});
 401                                 $self->pidl_code("char *data;");
 402                                 $self->pidl_code("offset = dissect_ndr_generic_array_string(tvb, offset, pinfo, tree, di, drep, sizeof($nl_ctype), $hf, FALSE, $ngavar, &data);");
 403                                 $self->pidl_code("proto_item_append_text(tree, \": %s\", data);");
 404                         }
 405                 }
 406         } elsif ($l->{TYPE} eq "DATA") {
 407                 if ($l->{DATA_TYPE} eq "string") {
 408                         my $bs = 2; # Byte size defaults to that of UCS2
 409
 410
 411                         ($bs = 1) if (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_ASCII.*"));
 412
 413                         if (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_SIZE4.*") and property_matches($e, "flag", ".*LIBNDR_FLAG_STR_LEN4.*")) {
 414                                 $self->pidl_code("char *data = NULL;");
 415                                 $self->pidl_code("struct ndr_generic_array nga = { .is_conformant = FALSE, };");
 416                                 $self->pidl_code("offset = dissect_ndr_conformant_array_hdr(tvb, offset, pinfo, tree, di, drep, &nga);");
 417                                 $self->pidl_code("offset = dissect_ndr_varying_array_hdr(tvb, offset, pinfo, tree, di, drep, &nga);");
 418                                 $self->pidl_code("offset = dissect_ndr_generic_array_string(tvb, offset, pinfo, tree, di, drep, $bs, $hf, false, &nga, &data);");
 419                                 $self->pidl_code("proto_item_append_text(tree, \": %s\", data);");
 420                         } elsif (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_SIZE4.*")) {
 421                                 $self->pidl_code("char *data = NULL;");
 422                                 $self->pidl_code("struct ndr_generic_array nga = { .is_conformant = false, };");
 423                                 $self->pidl_code("offset = dissect_ndr_conformant_array_hdr(tvb, offset, pinfo, tree, di, drep, &nga);");
 424                                 $self->pidl_code("offset = dissect_ndr_generic_array_string(tvb, offset, pinfo, tree, di, drep, $bs, $hf, false, &nga, &data);");
 425                                 $self->pidl_code("proto_item_append_text(tree, \": %s\", data);");
 426                         } elsif (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_LEN4.*")) {
 427                                 $self->pidl_code("char *data = NULL;");
 428                                 $self->pidl_code("struct ndr_generic_array nga = { .is_conformant = false, };");
 429                                 $self->pidl_code("offset = dissect_ndr_varying_array_hdr(tvb, offset, pinfo, tree, di, drep, &nga);");
 430                                 $self->pidl_code("offset = dissect_ndr_generic_array_string(tvb, offset, pinfo, tree, di, drep, $bs, $hf, false, &nga, &data);");
 431                                 $self->pidl_code("proto_item_append_text(tree, \": %s\", data);");
 432                         } elsif (property_matches($e, "flag", ".*STR_NULLTERM.*")) {
 433                                 if ($bs == 2) {
 434                                         $self->pidl_code("offset = dissect_null_term_wstring(tvb, offset, pinfo, tree, drep, $hf , 0);")
 435                                 } else {
 436                                         $self->pidl_code("offset = dissect_null_term_string(tvb, offset, pinfo, tree, drep, $hf , 0);")
 437                                 }
 438                         } else {
 439                                 warn("Unable to handle string with flags $e->{PROPERTIES}->{flag}");
 440                         }
 441                 } elsif ($l->{DATA_TYPE} eq "DATA_BLOB") {
 442                         my $remain = 0;
 443                         $remain = 1 if (property_matches($e->{ORIGINAL}, "flag", ".*LIBNDR_FLAG_REMAINING.*"));
 444                         $self->pidl_code("offset = dissect_ndr_datablob(tvb, offset, pinfo, tree, di, drep, $hf, $remain);");
 445                 } else {
 446                         my $call;
 447
 448                         my $within = ContainsWithinEmbeddedPointer($e, $l);
 449                         my $pl = GetPrevLevel($e,$l);
 450                         if ($param ne "0" and $within != 0 and defined($pl) and $pl->{TYPE} eq "SWITCH") {
 451                                 $param = "di->switch_level";
 452                         }
 453
 454                         if ($self->{conformance}->{imports}->{$l->{DATA_TYPE}}) {
 455                                 $call = $self->{conformance}->{imports}->{$l->{DATA_TYPE}}->{DATA};
 456                                 $self->{conformance}->{imports}->{$l->{DATA_TYPE}}->{USED} = 1;
 457                         } elsif (defined($self->{conformance}->{imports}->{"$pn.$e->{NAME}"})) {
 458                                 $call = $self->{conformance}->{imports}->{"$pn.$e->{NAME}"}->{DATA};
 459                                 $self->{conformance}->{imports}->{"$pn.$e->{NAME}"}->{USED} = 1;
 460                         } elsif (defined($self->{conformance}->{types}->{$l->{DATA_TYPE}})) {
 461                                 $call= $self->{conformance}->{types}->{$l->{DATA_TYPE}}->{DISSECTOR_NAME};
 462                                 $self->{conformance}->{types}->{$l->{DATA_TYPE}}->{USED} = 1;
 463                         } else {
 464                                 my $t;
 465                                 if (ref($l->{DATA_TYPE}) eq "HASH" ) {
 466                                         $t = "$l->{DATA_TYPE}->{TYPE}_$l->{DATA_TYPE}->{NAME}";
 467                                 } else {
 468                                         $t = $l->{DATA_TYPE};
 469                                 }
 470
 471                                 $self->pidl_code("offset = $ifname\_dissect_struct_" . $t . "(tvb,offset,pinfo,tree,di,drep,$hf,$param);");
 472
 473                                 return;
 474                         }
 475
 476                         $call =~ s/\@HF\@/$hf/g;
 477                         $call =~ s/\@PARAM\@/$param/g;
 478                         $self->pidl_code($call);
 479                 }
 480         } elsif ($_->{TYPE} eq "SUBCONTEXT" and $l->{HEADER_SIZE} == 0xFFFFFC01) {
 481                 my $varswitch;
 482                 if (has_property($e, "switch_is")) {
 483                         $varswitch = $e->{PROPERTIES}->{switch_is};
 484                 }
 485                 my $num_bits = 32;
 486                 my $hf2 = $self->register_hf_field($hf."_", "Subcontext length", "$ifname.$pn.$_->{NAME}subcontext", "FT_UINT$num_bits", "BASE_HEX", "NULL", 0, "");
 487                 $num_bits = 3264 if ($num_bits == 32);
 488                 $self->{hf_used}->{$hf2} = 1;
 489                 $self->pidl_code("guint$num_bits size;");
 490                 $self->pidl_code("int conformant = di->conformant_run;");
 491                 $self->pidl_code("tvbuff_t *subtvb;");
 492                 $self->pidl_code("");
 493                 # We need to be able to dissect the length of the context in every case
 494                 # and conformant run skips the dissections of scalars ...
 495                 $self->pidl_code("if (!conformant) {");
 496                 $self->indent;
 497                 $self->pidl_code("guint32 saved_flags = di->call_data->flags;");
 498                 $self->pidl_code("offset = dissect_ndr_uint$num_bits(tvb, offset, pinfo, tree, di, drep, $hf2, &size);");
 499                 # This is a subcontext, there is normally no such thing as
 500                 # 64 bit NDR is subcontext so we clear the flag so that we can
 501                 # continue to dissect handmarshalled stuff with pidl
 502                 $self->pidl_code("di->call_data->flags &= ~DCERPC_IS_NDR64;");
 503
 504                 $self->pidl_code("subtvb = tvb_new_subset_length_caplen(tvb, offset, (gint)size, (gint)size);");
 505                 if ($param ne 0) {
 506                         $self->pidl_code("$myname\_(subtvb, 0, pinfo, tree, di, drep, $param);");
 507                 } else {
 508                         $self->pidl_code("$myname\_(subtvb, 0, pinfo, tree, di, drep);");
 509                 }
 510                 $self->pidl_code("offset += (int)size;");
 511                 $self->pidl_code("di->call_data->flags = saved_flags;");
 512                 $self->deindent;
 513                 $self->pidl_code("}");
 514         } elsif ($_->{TYPE} eq "SUBCONTEXT") {
 515                 my $varswitch;
 516                 if (has_property($e, "switch_is")) {
 517                         $varswitch = $e->{PROPERTIES}->{switch_is};
 518                 }
 519                 my $num_bits = ($l->{HEADER_SIZE}*8);
 520                 if ($num_bits == 0) {
 521                         $num_bits = 32;
 522                 }
 523                 my $hf2 = $self->register_hf_field($hf."_", "Subcontext length", "$ifname.$pn.$_->{NAME}subcontext", "FT_UINT$num_bits", "BASE_HEX", "NULL", 0, "");
 524                 $num_bits = 3264 if ($num_bits == 32);
 525                 $self->{hf_used}->{$hf2} = 1;
 526                 $self->pidl_code("uint${num_bits}_t size;");
 527                 $self->pidl_code("int conformant = di->conformant_run;");
 528                 $self->pidl_code("tvbuff_t *subtvb;");
 529                 $self->pidl_code("");
 530                 # We need to be able to dissect the length of the context in every case
 531                 # and conformant run skips the dissections of scalars ...
 532                 $self->pidl_code("if (!conformant) {");
 533                 $self->indent;
 534                 $self->pidl_code("uint32_t saved_flags = di->call_data->flags;");
 535                 $self->pidl_code("offset = dissect_ndr_uint$num_bits(tvb, offset, pinfo, tree, di, drep, $hf2, &size);");
 536                 # This is a subcontext, there is normally no such thing as
 537                 # 64 bit NDR is subcontext so we clear the flag so that we can
 538                 # continue to dissect handmarshalled stuff with pidl
 539                 $self->pidl_code("di->call_data->flags &= ~DCERPC_IS_NDR64;");
 540
 541                 $self->pidl_code("subtvb = tvb_new_subset_length_caplen(tvb, offset, (int)size, (int)size);");
 542                 if ($param ne 0) {
 543                         $self->pidl_code("$myname\_(subtvb, 0, pinfo, tree, di, drep, $param);");
 544                 } else {
 545                         $self->pidl_code("$myname\_(subtvb, 0, pinfo, tree, di, drep);");
 546                 }
 547                 $self->pidl_code("offset += (int)size;");
 548                 $self->pidl_code("di->call_data->flags = saved_flags;");
 549                 $self->deindent;
 550                 $self->pidl_code("}");
 551         } elsif ($_->{TYPE} eq "PIPE") {
 552                 error($e->{ORIGINAL}, "Type PIPE not yet supported");
 553         } else {
 554                 die("Unknown type `$_->{TYPE}'");
 555         }
 556 }
 557
 558 sub SwitchType($$;$)
 559 {
 560         my ($e, $type, $nodiscriminant) = @_;
 561
 562         my $switch_dt =  getType($type);
 563         my $switch_type = undef;
 564         if ($switch_dt->{DATA}->{TYPE} eq "ENUM") {
 565                 $switch_type = Parse::Pidl::Typelist::enum_type_fn($switch_dt->{DATA});
 566         } elsif ($switch_dt->{DATA}->{TYPE} eq "BITMAP") {
 567                 $switch_type = Parse::Pidl::Typelist::bitmap_type_fn($switch_dt->{DATA});
 568         } elsif ($switch_dt->{DATA}->{TYPE} eq "SCALAR") {
 569                 if (defined $e->{SWITCH_TYPE}) {
 570                         $switch_type = "$e->{SWITCH_TYPE}";
 571                 } else {
 572                         $switch_type = "$switch_dt->{DATA}->{NAME}";
 573                 }
 574         } elsif (not defined $e->{SWITCH_TYPE}) {
 575                 $switch_type = $nodiscriminant;
 576         }
 577
 578         return $switch_type
 579 }
 580
 581 sub Element($$$$$$)
 582 {
 583         my ($self,$e,$pn,$ifname,$isoruseswitch,%switchvars) = @_;
 584
 585         my $dissectorname = "$ifname\_dissect\_element\_".StripPrefixes($pn, $self->{conformance}->{strip_prefixes})."\_".StripPrefixes($e->{NAME}, $self->{conformance}->{strip_prefixes});
 586
 587         my ($call_code, $moreparam);
 588         my $l = @{$e->{LEVELS}}[0];
 589         my $param = 0;
 590         my $moreparam_once = 0;
 591         if (defined $isoruseswitch) {
 592                 my $type = $isoruseswitch->[0];
 593                 my $name = $isoruseswitch->[1];
 594
 595                 my $switch_dt =  getType($type);
 596                 my $switch_raw_type = SwitchType($e, $type, "uint32");
 597                 if (not defined($switch_raw_type)) {
 598                         die("Unknown type[$type]\n");
 599                 }
 600                 my $switch_type = mapWireScalarType(${switch_raw_type});
 601
 602                 if ($name ne "") {
 603                         if (has_property($e, "switch_is")) {
 604                                 $moreparam = ", $switch_type ".$name;
 605                         } else {
 606                                 $moreparam = ", $switch_type *".$name;
 607                         }
 608                 } else {
 609                         $moreparam = "";
 610                 }
 611                 if (($e->{PROPERTIES}->{switch_is} eq "") && ($switchvars{$name}) &&
 612                         #not a "native" type
 613                         (!($type =~ /^uint(8|16|1632|32|3264|64)/))) {
 614                         $param = $name;
 615                 } elsif ( $switch_dt->{DATA}->{TYPE} eq "ENUM") {
 616                         $param = $name;
 617                 } elsif ($name ne "") {
 618                         if (has_property($e, "switch_is")) {
 619                                 $param = $name;
 620                         } else {
 621                                 $param = "*".$name;
 622                         }
 623                 }
 624
 625                 if ($name ne "") {
 626                         if (has_property($e, "switch_is")) {
 627                                 $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep, $name);";
 628                         } else {
 629                                 $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep, &$name);";
 630                         }
 631                 } else {
 632                         $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep);";
 633                 }
 634         } elsif ($l->{IS_SURROUNDING} and $l->{IS_CONFORMANT}) {
 635                 my $cfvarname = "nga_$e->{NAME}";
 636                 $moreparam = ", struct ndr_generic_array *nga";
 637                 $moreparam_once = 1;
 638                 $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep, &$cfvarname);";
 639         } else {
 640                 $moreparam = "";
 641                 $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep);";
 642         }
 643
 644
 645         my $type = $self->find_type($e->{TYPE});
 646
 647         if (not defined($type)) {
 648                 # default settings
 649                 $type = {
 650                         MASK => 0,
 651                         VALSSTRING => "NULL",
 652                         FT_TYPE => "FT_NONE",
 653                         BASE_TYPE => "BASE_NONE"
 654                 };
 655         }
 656
 657         if (ContainsString($e)) {
 658                 $type = {
 659                         MASK => 0,
 660                         VALSSTRING => "NULL",
 661                         FT_TYPE => "FT_STRING",
 662                         BASE_TYPE => "BASE_NONE"
 663                 };
 664         }
 665         if (property_matches($e, "flag", ".*LIBNDR_FLAG_ALIGN.*")) {
 666                 my $align_flag = $e->{PROPERTIES}->{flag};
 667                 if ($align_flag =~ m/LIBNDR_FLAG_ALIGN(\d+)/) {
 668                         $call_code = "ALIGN_TO_$1_BYTES; ".$call_code;
 669                 }
 670         }
 671
 672         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}, "");
 673         $self->{hf_used}->{$hf} = 1;
 674
 675         my $eltname = StripPrefixes($pn, $self->{conformance}->{strip_prefixes}) . ".$e->{NAME}";
 676         if (defined($self->{conformance}->{noemit}->{$eltname})) {
 677                 return $call_code;
 678         }
 679
 680         my $add = "";
 681
 682         my $oldparam = undef;
 683         foreach (@{$e->{LEVELS}}) {
 684                 if (defined $_->{SWITCH_IS}) {
 685                         $oldparam = $param;
 686                         #if (($param ne "0") && (!($param =~ /\*/))) {
 687                         #       $param = "*$param";
 688                         #}
 689                 }
 690                 next if ($_->{TYPE} eq "SWITCH");
 691                 next if (defined($self->{conformance}->{noemit}->{"$dissectorname$add"}));
 692                 my $within = ContainsWithinEmbeddedPointer($e, $_);
 693                 my $saved_moreparam = $moreparam;
 694                 if ($within != 0) {
 695                         $moreparam = "";
 696                 }
 697                 $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);");
 698                 $self->pidl_fn_start("$dissectorname$add");
 699                 $self->pidl_code("static int");
 700                 $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)");
 701                 $self->pidl_code("{");
 702                 $self->indent;
 703
 704                 $moreparam = $saved_moreparam;
 705
 706                 $self->ElementLevel($e,$_,$hf,$dissectorname.$add,$pn,$ifname,$param);
 707                 if (defined $oldparam) {
 708                         $param = $oldparam;
 709                 }
 710
 711                 $self->pidl_code("");
 712                 $self->pidl_code("return offset;");
 713                 $self->deindent;
 714                 $self->pidl_code("}\n");
 715                 $self->pidl_fn_end("$dissectorname$add");
 716                 $add.="_";
 717                 $moreparam="" if $moreparam_once;
 718                 last if ($_->{TYPE} eq "ARRAY" and $_->{IS_ZERO_TERMINATED});
 719         }
 720
 721         return $call_code;
 722 }
 723
 724 sub Function($$$)
 725 {
 726         my ($self, $fn,$ifname) = @_;
 727
 728         my %dissectornames;
 729
 730         foreach (@{$fn->{ELEMENTS}}) {
 731             $dissectornames{$_->{NAME}} = $self->Element($_, $fn->{NAME}, $ifname, undef, ()) if not defined($dissectornames{$_->{NAME}});
 732         }
 733
 734         my $fn_name = $_->{NAME};
 735         $fn_name =~ s/^${ifname}_//;
 736
 737         $self->PrintIdl(DumpFunction($fn->{ORIGINAL}));
 738         $self->pidl_fn_start("$ifname\_dissect\_$fn_name\_response");
 739         $self->pidl_code("static int");
 740         $self->pidl_code("$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_)");
 741         $self->pidl_code("{");
 742         $self->indent;
 743         if ( not defined($fn->{RETURN_TYPE})) {
 744         } elsif ($fn->{RETURN_TYPE} eq "NTSTATUS" or $fn->{RETURN_TYPE} eq "WERROR" or $fn->{RETURN_TYPE} eq "HRESULT")
 745         {
 746                 $self->pidl_code("uint32_t status;\n");
 747         } elsif (my $type = getType($fn->{RETURN_TYPE})) {
 748                 if ($type->{DATA}->{TYPE} eq "ENUM") {
 749                         $self->pidl_code(Parse::Pidl::Typelist::enum_type_fn($type->{DATA}) . "_t status;\n");
 750                 } elsif ($type->{DATA}->{TYPE} eq "SCALAR") {
 751                         $self->pidl_code(mapWireScalarType($fn->{RETURN_TYPE}) . " status;\n");
 752                 } else {
 753                         error($fn, "return type `$fn->{RETURN_TYPE}' not yet supported");
 754                 }
 755         } else {
 756                 error($fn, "unknown return type `$fn->{RETURN_TYPE}'");
 757         }
 758
 759         $self->pidl_code("di->dcerpc_procedure_name=\"${fn_name}\";");
 760         foreach (@{$fn->{ELEMENTS}}) {
 761                 if (grep(/out/,@{$_->{DIRECTION}})) {
 762                         $self->pidl_code("$dissectornames{$_->{NAME}}");
 763                         $self->pidl_code("offset = dissect_deferred_pointers(pinfo, tvb, offset, di, drep);");
 764                         $self->pidl_code("");
 765                 }
 766         }
 767
 768         if (not defined($fn->{RETURN_TYPE})) {
 769         } elsif ($fn->{RETURN_TYPE} eq "NTSTATUS") {
 770                 $self->pidl_code("offset = dissect_ntstatus(tvb, offset, pinfo, tree, di, drep, hf\_$ifname\_status, &status);\n");
 771                 $self->pidl_code("if (status != 0)");
 772                 $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");
 773                 $return_types{$ifname}->{"status"} = ["NTSTATUS", "NT Error"];
 774         } elsif ($fn->{RETURN_TYPE} eq "WERROR") {
 775                 $self->pidl_code("offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep, hf\_$ifname\_werror, &status);\n");
 776                 $self->pidl_code("if (status != 0)");
 777                 $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");
 778
 779                 $return_types{$ifname}->{"werror"} = ["WERROR", "Windows Error"];
 780         } elsif ($fn->{RETURN_TYPE} eq "HRESULT") {
 781                 $self->pidl_code("offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep, hf\_$ifname\_hresult, &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, &HRES_errors_ext, \"Unknown HRES error 0x%08x\"));\n");
 784                 $return_types{$ifname}->{"hresult"} = ["HRESULT", "HRES Windows Error"];
 785         } elsif (my $type = getType($fn->{RETURN_TYPE})) {
 786                 if ($type->{DATA}->{TYPE} eq "ENUM") {
 787                         my $return_dissect = "dissect_ndr_" .Parse::Pidl::Typelist::enum_type_fn($type->{DATA});
 788
 789                         $self->pidl_code("offset = $return_dissect(tvb, offset, pinfo, tree, di, drep, hf\_$ifname\_$fn->{RETURN_TYPE}_status, &status);");
 790                         $self->pidl_code("if (status != 0)");
 791                         $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");
 792                         $return_types{$ifname}->{$fn->{RETURN_TYPE}."_status"} = [$fn->{RETURN_TYPE}, $fn->{RETURN_TYPE}];
 793                 } elsif ($type->{DATA}->{TYPE} eq "SCALAR") {
 794                         $self->pidl_code("offset = dissect_ndr_$fn->{RETURN_TYPE}(tvb, offset, pinfo, tree, di, drep, hf\_$ifname\_$fn->{RETURN_TYPE}_status, &status);");
 795                         $self->pidl_code("if (status != 0)");
 796                         $self->pidl_code("\tcol_append_fstr(pinfo->cinfo, COL_INFO, \", Status: %d\", status);\n");
 797                         $return_types{$ifname}->{$fn->{RETURN_TYPE}."_status"} = [$fn->{RETURN_TYPE}, $fn->{RETURN_TYPE}];
 798                 }
 799         }
 800
 801         $self->pidl_code("return offset;");
 802         $self->deindent;
 803         $self->pidl_code("}\n");
 804         $self->pidl_fn_end("$ifname\_dissect\_$fn_name\_response");
 805
 806         $self->pidl_fn_start("$ifname\_dissect\_$fn_name\_request");
 807         $self->pidl_code("static int");
 808         $self->pidl_code("$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_)");
 809         $self->pidl_code("{");
 810         $self->indent;
 811         $self->pidl_code("di->dcerpc_procedure_name=\"${fn_name}\";");
 812         foreach (@{$fn->{ELEMENTS}}) {
 813                 if (grep(/in/,@{$_->{DIRECTION}})) {
 814                         $self->pidl_code("$dissectornames{$_->{NAME}}");
 815                         $self->pidl_code("offset = dissect_deferred_pointers(pinfo, tvb, offset, di, drep);");
 816                 }
 817
 818         }
 819
 820         $self->pidl_code("return offset;");
 821         $self->deindent;
 822         $self->pidl_code("}\n");
 823         $self->pidl_fn_end("$ifname\_dissect\_$fn_name\_request");
 824 }
 825
 826 sub Struct($$$$)
 827 {
 828         my ($self,$e,$name,$ifname) = @_;
 829         my $dissectorname = "$ifname\_dissect\_struct\_".StripPrefixes($name, $self->{conformance}->{strip_prefixes});
 830
 831         return if (defined($self->{conformance}->{noemit}->{StripPrefixes($name, $self->{conformance}->{strip_prefixes})}));
 832
 833         $self->register_ett("ett_$ifname\_$name");
 834
 835         my $res = "";
 836         my $paramsrefs = {};
 837         # will contain the switch var declaration;
 838         my $vars = [];
 839         my %paramshash;
 840         foreach (@{$e->{ELEMENTS}}) {
 841                 my $paramvar = undef;
 842
 843                 if (has_property($_, "switch_is")) {
 844                         $paramvar = $_->{PROPERTIES}->{switch_is};
 845                 }
 846
 847                 if ($_->{LEVELS}[0]{IS_INLINE}) {
 848                         $paramvar = $_->{LEVELS}[0]{SIZE_IS};
 849                 }
 850
 851                 if (defined($paramvar)) {
 852                         $paramsrefs->{$paramvar} = [];
 853                         $paramshash{$paramvar} = $paramvar;
 854                 }
 855 #$VAR1 = {
 856 #          'IS_CONFORMANT' => 0,
 857 #          'IS_DEFERRED' => 0,
 858 #          'IS_FIXED' => 0,
 859 #          'IS_INLINE' => 1,
 860 #          'IS_SURROUNDING' => 0,
 861 #          'IS_TO_NULL' => 0,
 862 #          'IS_VARYING' => 0,
 863 #          'IS_ZERO_TERMINATED' => 0,
 864 #          'LENGTH_IS' => 'name_len',
 865 #          'LEVEL_INDEX' => 0,
 866 #          'SIZE_IS' => 'name_len',
 867 #          'TYPE' => 'ARRAY'
 868 #        };
 869
 870         }
 871         foreach (@{$e->{ELEMENTS}}) {
 872                 my $paraminfo = undef;
 873
 874                 my $v = $_->{NAME};
 875                 if (scalar(grep {/^$v$/} keys(%$paramsrefs)) == 1) {
 876                         # This element is one of the switch attribute
 877                         my $switch_raw_type = SwitchType($e, $_->{TYPE}, "uint32");
 878                         if (not defined($switch_raw_type)) {
 879                                 die("Unknown type[$_->{TYPE}]\n");
 880                         }
 881                         my $switch_type = mapWireScalarType(${switch_raw_type});
 882
 883                         if ($switch_type ne "") {
 884                                 push @$vars, "$switch_type $v = 0;";
 885                         }
 886                         $paraminfo = [ $_->{TYPE}, $v ];
 887                         $paramsrefs->{$v} = $paraminfo;
 888                 }
 889
 890                 my $paramvar = undef;
 891                 if (has_property($_, "switch_is")) {
 892                         $paramvar = $_->{PROPERTIES}->{switch_is};
 893                 }
 894
 895                 if ($_->{LEVELS}[0]{IS_INLINE}) {
 896                         $paramvar = $_->{LEVELS}[0]{SIZE_IS};
 897                 }
 898
 899                 if (defined($paramvar)) {
 900                         $paraminfo = $paramsrefs->{$paramvar};
 901                 }
 902
 903                 $res.="\t".$self->Element($_, $name, $ifname, $paraminfo, %paramshash)."\n\n";
 904         }
 905
 906         my $doalign = undef;
 907         if ($e->{ALIGN} > 1 and not property_matches($e, "flag", ".*LIBNDR_FLAG_NOALIGN.*")) {
 908                 $doalign = 1;
 909         } elsif (property_matches($e, "flag", ".*LIBNDR_FLAG_NOALIGN.*")) {
 910                 $doalign = 0;
 911         }
 912
 913         my $cfdissectorname = undef;
 914         my $cfvarname = undef;
 915         if (defined $e->{SURROUNDING_ELEMENT}) {
 916                 my $se = $e->{SURROUNDING_ELEMENT};
 917                 my $pn = $name;
 918                 $cfdissectorname = "$ifname\_dissect\_conformant\_".StripPrefixes($pn, $self->{conformance}->{strip_prefixes})."\_".StripPrefixes($se->{NAME}, $self->{conformance}->{strip_prefixes});
 919                 $cfvarname = "nga_$se->{NAME}";
 920                 push @$vars, "struct ndr_generic_array $cfvarname = { .is_conformant = FALSE, };";
 921                 unless (defined($self->{conformance}->{noemit}->{"$cfdissectorname"})) {
 922
 923                         $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);");
 924                         $self->pidl_fn_start("$dissectorname");
 925                         $self->pidl_code("static int");
 926                         $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)");
 927                         $self->pidl_code("{");
 928                         $self->indent;
 929
 930                         $self->pidl_code("offset = dissect_ndr_conformant_array_hdr(tvb, offset, pinfo, tree, di, drep, nga);");
 931
 932                         $self->pidl_code("");
 933                         $self->pidl_code("return offset;");
 934                         $self->deindent;
 935                         $self->pidl_code("}\n");
 936                 }
 937         }
 938
 939         $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_);");
 940
 941         $self->pidl_fn_start($dissectorname);
 942         $self->pidl_code("int");
 943         $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_)");
 944         $self->pidl_code("{");
 945         $self->indent;
 946         $self->pidl_code($_) foreach (@$vars);
 947         $self->pidl_code("proto_item *item = NULL;");
 948         if($res) {
 949                 $self->pidl_code("proto_tree *tree = NULL;");
 950         }
 951         if (defined($doalign) and $doalign == 0) {
 952                 $self->pidl_code("bool oldalign = di->no_align;");
 953         }
 954         $self->pidl_code("int old_offset;");
 955         $self->pidl_code("");
 956
 957         if (defined $cfdissectorname) {
 958                 $self->pidl_code("offset = $cfdissectorname(tvb, offset, pinfo, parent_tree, di, drep, &$cfvarname);");
 959                 $self->pidl_code("");
 960         }
 961
 962         if (defined($doalign)) {
 963                 if ($doalign == 1) {
 964                         $self->pidl_code("ALIGN_TO_$e->{ALIGN}_BYTES;");
 965                 }
 966                 if ($doalign == 0) {
 967                         $self->pidl_code("di->no_align = true;");
 968                 }
 969                 $self->pidl_code("");
 970         }
 971
 972         $self->pidl_code("old_offset = offset;");
 973         $self->pidl_code("");
 974         $self->pidl_code("if (parent_tree) {");
 975         $self->indent;
 976         $self->pidl_code("item = proto_tree_add_item(parent_tree, hf_index, tvb, offset, -1, ENC_NA);");
 977         if($res) {
 978                 $self->pidl_code("tree = proto_item_add_subtree(item, ett_$ifname\_$name);");
 979         }
 980         $self->deindent;
 981         $self->pidl_code("}");
 982         $self->pidl_code("");
 983
 984         $self->deindent;
 985         $self->pidl_code("$res");
 986         $self->indent;
 987
 988         $self->pidl_code("proto_item_set_len(item, offset-old_offset);\n");
 989         if (defined($doalign) and $doalign == 1 and not defined($e->{SURROUNDING_ELEMENT})) {
 990                 $self->pidl_code("");
 991                 $self->pidl_code("if (di->call_data->flags & DCERPC_IS_NDR64) {");
 992                 $self->indent;
 993                 $self->pidl_code("ALIGN_TO_$e->{ALIGN}_BYTES;");
 994                 $self->deindent;
 995                 $self->pidl_code("}");
 996         }
 997         if (defined($doalign) and $doalign == 0) {
 998                 $self->pidl_code("");
 999                 $self->pidl_code("di->no_align = oldalign;");
1000         }
1001         $self->pidl_code("");
1002         $self->pidl_code("return offset;");
1003         $self->deindent;
1004         $self->pidl_code("}\n");
1005         $self->pidl_fn_end($dissectorname);
1006
1007         $self->register_type($name, "offset = $dissectorname(tvb,offset,pinfo,tree,di,drep,\@HF\@,\@PARAM\@);", "FT_NONE", "BASE_NONE", 0, "NULL", 0);
1008 }
1009
1010 sub Union($$$$)
1011 {
1012         my ($self,$e,$name,$ifname) = @_;
1013
1014         my $dissectorname = "$ifname\_dissect_".StripPrefixes($name, $self->{conformance}->{strip_prefixes});
1015
1016         return if (defined($self->{conformance}->{noemit}->{StripPrefixes($name, $self->{conformance}->{strip_prefixes})}));
1017
1018         $self->register_ett("ett_$ifname\_$name");
1019
1020         my $res = "";
1021         foreach (@{$e->{ELEMENTS}}) {
1022                 $res.="\n\t\t$_->{CASE}:\n";
1023                 if ($_->{TYPE} ne "EMPTY") {
1024                         $res.="\t\t\t".$self->Element($_, $name, $ifname, undef, ())."\n";
1025                 }
1026                 $res.="\t\tbreak;\n";
1027         }
1028
1029         my $switch_type = undef;
1030         my $switch_dissect = undef;
1031         my $switch_raw_type = SwitchType($e, $e->{SWITCH_TYPE});
1032         if (defined($switch_raw_type)) {
1033                 $switch_type = mapWireScalarType(${switch_raw_type});
1034                 $switch_dissect = "dissect_ndr_${switch_raw_type}";
1035         }
1036
1037         $self->pidl_fn_start($dissectorname);
1038         $self->pidl_code("static int");
1039         $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_)");
1040         $self->pidl_code("{");
1041         $self->indent;
1042         $self->pidl_code("proto_item *item = NULL;");
1043         $self->pidl_code("proto_tree *tree = NULL;");
1044         $self->pidl_code("int old_offset;");
1045         if (!defined $switch_type) {
1046                 $self->pidl_code("uint32_t level = param;");
1047         } else {
1048                 $self->pidl_code("$switch_type level;");
1049         }
1050         $self->pidl_code("");
1051
1052         $self->pidl_code("old_offset = offset;");
1053         $self->pidl_code("if (parent_tree) {");
1054         $self->indent;
1055         $self->pidl_code("tree = proto_tree_add_subtree(parent_tree, tvb, offset, -1, ett_$ifname\_$name, &item, \"$name\");");
1056         $self->deindent;
1057         $self->pidl_code("}");
1058
1059         $self->pidl_code("");
1060
1061         my $alignValue = $e->{ALIGN};
1062         if (property_matches($e, "flag", ".*LIBNDR_FLAG_ALIGN.*")) {
1063                 my $align_flag = $e->{PROPERTIES}->{flag};
1064                 if ($align_flag =~ m/LIBNDR_FLAG_ALIGN(\d+)/) {
1065                         $alignValue = $1;
1066                 }
1067         }
1068
1069         if (defined $switch_type) {
1070                 if ($alignValue > 1) {
1071                         $self->pidl_code("UNION_ALIGN_TO_".$alignValue."_BYTES;");
1072                 }
1073
1074                 $self->pidl_code("offset = $switch_dissect(tvb, offset, pinfo, tree, di, drep, hf_index, &level);");
1075         }
1076
1077         if ($alignValue > 1) {
1078                 if ($e->{IS_MS_UNION}) {
1079                         $self->pidl_code("/* ms_union is always aligned to the largest union arm*/");
1080                         $self->pidl_code("ALIGN_TO_".$alignValue."_BYTES;");
1081                 } else {
1082                         $self->pidl_code("UNION_ALIGN_TO_".$alignValue."_BYTES;");
1083                 }
1084                 $self->pidl_code("");
1085         }
1086
1087         $self->pidl_code("switch(level) {$res\t}");
1088         $self->pidl_code("proto_item_set_len(item, offset-old_offset);\n");
1089         $self->pidl_code("");
1090
1091         $self->pidl_code("return offset;");
1092         $self->deindent;
1093         $self->pidl_code("}");
1094         $self->pidl_fn_end($dissectorname);
1095
1096         $self->register_type($name, "offset = $dissectorname(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);", "FT_NONE", "BASE_NONE", 0, "NULL", 0);
1097 }
1098
1099 sub Const($$$)
1100 {
1101         my ($self,$const,$ifname) = @_;
1102
1103         if (!defined($const->{ARRAY_LEN}[0])) {
1104                 $self->pidl_hdr("#define $const->{NAME}\t( $const->{VALUE} )\n");
1105         } else {
1106                 $self->pidl_hdr("#define $const->{NAME}\t $const->{VALUE}\n");
1107         }
1108 }
1109
1110 sub Typedef($$$$)
1111 {
1112         my ($self,$e,$name,$ifname) = @_;
1113
1114         $self->Type($e->{DATA}, $name, $ifname);
1115 }
1116
1117 sub Type($$$$)
1118 {
1119         my ($self, $e, $name, $ifname) = @_;
1120
1121         $self->PrintIdl(DumpType($e->{ORIGINAL}));
1122         {
1123                 ENUM => \&Enum,
1124                 STRUCT => \&Struct,
1125                 UNION => \&Union,
1126                 BITMAP => \&Bitmap,
1127                 TYPEDEF => \&Typedef,
1128                 PIPE    => \&Pipe
1129         }->{$e->{TYPE}}->($self, $e, $name, $ifname);
1130 }
1131
1132 sub RegisterInterface($$)
1133 {
1134         my ($self, $x) = @_;
1135
1136         $self->pidl_fn_start("proto_register_dcerpc_$x->{NAME}");
1137         $self->pidl_code("void proto_register_dcerpc_$x->{NAME}(void)");
1138         $self->pidl_code("{");
1139         $self->indent;
1140
1141         $self->{res}->{headers} .= "void proto_register_dcerpc_$x->{NAME}(void);\n";
1142
1143         $self->{res}->{code}.=$self->DumpHfList()."\n";
1144         $self->{res}->{code}.="\n".DumpEttList($self->{ett})."\n";
1145
1146         if (defined($x->{UUID})) {
1147                 # These can be changed to non-pidl_code names if the old
1148                 # dissectors in epan/dissectors are deleted.
1149
1150                 my $name = uc($x->{NAME}) . " (pidl)";
1151                 my $short_name = uc($x->{NAME});
1152                 my $filter_name = $x->{NAME};
1153
1154                 if (has_property($x, "helpstring")) {
1155                         $name = $x->{PROPERTIES}->{helpstring};
1156                 }
1157
1158                 if (defined($self->{conformance}->{protocols}->{$x->{NAME}})) {
1159                 $short_name = $self->{conformance}->{protocols}->{$x->{NAME}}->{SHORTNAME};
1160                 $name = $self->{conformance}->{protocols}->{$x->{NAME}}->{LONGNAME};
1161                 $filter_name = $self->{conformance}->{protocols}->{$x->{NAME}}->{FILTERNAME};
1162                 }
1163
1164                 $self->pidl_code("proto_dcerpc_$x->{NAME} = proto_register_protocol(".make_str($name).", ".make_str($short_name).", ".make_str($filter_name).");");
1165
1166                 $self->pidl_code("proto_register_field_array(proto_dcerpc_$x->{NAME}, hf, array_length (hf));");
1167                 $self->pidl_code("proto_register_subtree_array(ett, array_length(ett));");
1168         } else {
1169                 $self->pidl_code("proto_dcerpc = proto_get_id_by_filter_name(\"dcerpc\");");
1170                 $self->pidl_code("proto_register_field_array(proto_dcerpc, hf, array_length(hf));");
1171                 $self->pidl_code("proto_register_subtree_array(ett, array_length(ett));");
1172         }
1173
1174         $self->deindent;
1175         $self->pidl_code("}\n");
1176         $self->pidl_fn_end("proto_register_dcerpc_$x->{NAME}");
1177 }
1178
1179 sub RegisterInterfaceHandoff($$)
1180 {
1181         my ($self,$x) = @_;
1182
1183         if (defined($x->{UUID})) {
1184                 $self->pidl_fn_start("proto_reg_handoff_dcerpc_$x->{NAME}");
1185                 $self->pidl_code("void proto_reg_handoff_dcerpc_$x->{NAME}(void)");
1186                 $self->pidl_code("{");
1187                 $self->indent;
1188                 $self->pidl_code("dcerpc_init_uuid(proto_dcerpc_$x->{NAME}, ett_dcerpc_$x->{NAME},");
1189                 $self->pidl_code("\t&uuid_dcerpc_$x->{NAME}, ver_dcerpc_$x->{NAME},");
1190                 $self->pidl_code("\t$x->{NAME}_dissectors, hf_$x->{NAME}_opnum);");
1191                 $self->deindent;
1192                 $self->pidl_code("}");
1193                 $self->pidl_fn_end("proto_reg_handoff_dcerpc_$x->{NAME}");
1194
1195                 $self->{res}->{headers} .= "void proto_reg_handoff_dcerpc_$x->{NAME}(void);\n";
1196
1197                 $self->{hf_used}->{"hf_$x->{NAME}_opnum"} = 1;
1198         }
1199 }
1200
1201 sub ProcessInclude
1202 {
1203         my $self = shift;
1204         my @includes = @_;
1205         foreach (@includes) {
1206                 $self->pidl_hdr("#include \"$_\"");
1207         }
1208         $self->pidl_hdr("");
1209 }
1210
1211 sub ProcessImport
1212 {
1213         my $self = shift;
1214         my @imports = @_;
1215         foreach (@imports) {
1216                 next if($_ eq "security");
1217                 s/^\"//;
1218                 s/\.idl"?$//;
1219                 s/^.*\///;
1220                 $self->pidl_hdr("#include \"packet-dcerpc-$_\.h\"");
1221         }
1222         $self->pidl_hdr("");
1223 }
1224
1225 sub ProcessInterface($$)
1226 {
1227         my ($self, $x) = @_;
1228
1229         push(@{$self->{conformance}->{strip_prefixes}}, $x->{NAME});
1230
1231         my $define = "__PACKET_DCERPC_" . uc($_->{NAME}) . "_H";
1232         $self->pidl_hdr("#ifndef $define");
1233         $self->pidl_hdr("#define $define");
1234         $self->pidl_hdr("");
1235
1236         $self->pidl_def("static int proto_dcerpc_$x->{NAME};");
1237         $self->register_ett("ett_dcerpc_$x->{NAME}");
1238         $self->register_hf_field("hf_$x->{NAME}_opnum", "Operation", "$x->{NAME}.opnum", "FT_UINT16", "BASE_DEC", "NULL", 0, "");
1239
1240         if (defined($x->{UUID})) {
1241                 my $if_uuid = $x->{UUID};
1242
1243                 $self->pidl_def("/* Version information */\n\n");
1244
1245                 $self->pidl_def("static e_guid_t uuid_dcerpc_$x->{NAME} = {");
1246                 $self->pidl_def("\t0x" . substr($if_uuid, 1, 8)
1247                 . ", 0x" . substr($if_uuid, 10, 4)
1248                 . ", 0x" . substr($if_uuid, 15, 4) . ",");
1249                 $self->pidl_def("\t{ 0x" . substr($if_uuid, 20, 2)
1250                 . ", 0x" . substr($if_uuid, 22, 2)
1251                 . ", 0x" . substr($if_uuid, 25, 2)
1252                 . ", 0x" . substr($if_uuid, 27, 2)
1253                 . ", 0x" . substr($if_uuid, 29, 2)
1254                 . ", 0x" . substr($if_uuid, 31, 2)
1255                 . ", 0x" . substr($if_uuid, 33, 2)
1256                 . ", 0x" . substr($if_uuid, 35, 2) . " }");
1257                 $self->pidl_def("};");
1258
1259                 my $maj = 0x0000FFFF & $x->{VERSION};
1260                 $maj =~ s/\.(.*)$//g;
1261                 $self->pidl_def("static uint16_t ver_dcerpc_$x->{NAME} = $maj;");
1262                 $self->pidl_def("");
1263         }
1264
1265         $return_types{$x->{NAME}} = {};
1266
1267         $self->Interface($x);
1268         $self->pidl_code("\n".DumpFunctionTable($x));
1269
1270         foreach (sort(keys %{$return_types{$x->{NAME}}})) {
1271                 my ($type, $desc) = @{$return_types{$x->{NAME}}->{$_}};
1272                 my $dt = $self->find_type($type);
1273                 $dt or die("Unable to find information about return type `$type'");
1274                 $self->register_hf_field("hf_$x->{NAME}_$_", $desc, "$x->{NAME}.$_", $dt->{FT_TYPE}, $dt->{BASE_TYPE}, $dt->{VALSSTRING}, 0, "");
1275                 $self->{hf_used}->{"hf_$x->{NAME}_$_"} = 1;
1276         }
1277
1278         $self->RegisterInterface($x);
1279         $self->RegisterInterfaceHandoff($x);
1280
1281         if (exists ($self->{conformance}->{header})) {
1282                 $self->pidl_hdr($self->{conformance}->{header});
1283         }
1284
1285         $self->pidl_hdr("#endif /* $define */");
1286 }
1287
1288 sub find_type($$)
1289 {
1290         my ($self, $n) = @_;
1291
1292         return $self->{conformance}->{types}->{$n};
1293 }
1294
1295 sub register_type($$$$$$$$)
1296 {
1297         my ($self, $type,$call,$ft,$base,$mask,$vals,$length) = @_;
1298
1299         return if (defined($self->{conformance}->{types}->{$type}));
1300
1301         $self->{conformance}->{types}->{$type} = {
1302                 NAME => $type,
1303                 DISSECTOR_NAME => $call,
1304                 FT_TYPE => $ft,
1305                 BASE_TYPE => $base,
1306                 MASK => $mask,
1307                 VALSSTRING => $vals,
1308                 ALIGNMENT => $length
1309         };
1310 }
1311
1312 # Loads the default types
1313 sub Initialize($$)
1314 {
1315         my ($self, $cnf_file) = @_;
1316
1317         $self->{conformance} = {
1318                 imports => {},
1319                 header_fields=> {}
1320         };
1321
1322         ReadConformance($cnf_file, $self->{conformance}) or print STDERR "warning: No conformance file `$cnf_file'\n";
1323
1324         foreach my $bytes (qw(1 2 4 8)) {
1325                 my $bits = $bytes * 8;
1326                 $self->register_type("uint$bits", "offset = PIDL_dissect_uint$bits\_val(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@, \@VALUEREF\@);", "FT_UINT$bits", "BASE_DEC", 0, "NULL", $bytes);
1327                 $self->register_type("int$bits", "offset = PIDL_dissect_uint$bits\_val(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@, \@VALUEREF\@);", "FT_INT$bits", "BASE_DEC", 0, "NULL", $bytes);
1328         }
1329
1330         $self->register_type("uint3264", "offset = PIDL_dissect_uint3264_val(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@, \@VALUEREF\@);", "FT_UINT32", "BASE_DEC", 0, "NULL", 8);
1331         $self->register_type("hyper", "offset = PIDL_dissect_uint64_val(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@, \@VALUEREF\@);", "FT_UINT64", "BASE_DEC", 0, "NULL", 8);
1332         $self->register_type("udlong", "offset = dissect_ndr_duint32(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@VALUEREF\@);", "FT_UINT64", "BASE_DEC", 0, "NULL", 4);
1333         $self->register_type("bool8", "offset = PIDL_dissect_uint8_val(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@, \@VALUEREF\@);","FT_INT8", "BASE_DEC", 0, "NULL", 1);
1334         $self->register_type("char", "offset = PIDL_dissect_uint8_val(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@, \@VALUEREF\@);","FT_INT8", "BASE_DEC", 0, "NULL", 1);
1335         $self->register_type("long", "offset = PIDL_dissect_uint32_val(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@, \@VALUEREF\@);","FT_INT32", "BASE_DEC", 0, "NULL", 4);
1336         $self->register_type("dlong", "offset = dissect_ndr_duint32(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@VALUEREF\@);","FT_INT64", "BASE_DEC", 0, "NULL", 8);
1337         $self->register_type("GUID", "offset = dissect_ndr_uuid_t(tvb, offset, pinfo, tree, di, drep, \@HF\@, NULL);","FT_GUID", "BASE_NONE", 0, "NULL", 4);
1338         $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);
1339         $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);
1340         $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);
1341         $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);
1342         $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);
1343         $self->register_type("dom_sid28",
1344                 "offset = dissect_ndr_nt_SID28(tvb, offset, pinfo, tree, di, drep, \@HF\@);", "FT_STRING", "BASE_NONE", 0, "NULL", 4);
1345         $self->register_type("SID",
1346                 "offset = dissect_ndr_nt_SID_with_options(tvb, offset, pinfo, tree, di, drep, param, \@HF\@);","FT_STRING", "BASE_NONE", 0, "NULL", 4);
1347         $self->register_type("WERROR",
1348                 "offset = PIDL_dissect_uint32(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);","FT_UINT32", "BASE_HEX|BASE_EXT_STRING", 0, "&WERR_errors_ext", 4);
1349         $self->register_type("NTSTATUS",
1350                 "offset = PIDL_dissect_uint32(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);","FT_UINT32", "BASE_HEX|BASE_EXT_STRING", 0, "&NT_errors_ext", 4);
1351         $self->register_type("HRESULT",
1352                 "offset = PIDL_dissect_uint32(tvb, offset, pinfo, tree, di, drep, \@HF\@, \@PARAM\@);","FT_UINT32", "BASE_HEX|BASE_EXT_STRING", 0, "&HRES_errors_ext", 4);
1353         $self->register_type("ipv6address", "proto_tree_add_item(tree, \@HF\@, tvb, offset, 16, ENC_NA); offset += 16;", "FT_IPv6", "BASE_NONE", 0, "NULL", 16);
1354         $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);
1355
1356 }
1357
1358 #####################################################################
1359 # Generate Wireshark parser and header code
1360 sub Parse($$$$$)
1361 {
1362         my($self,$ndr,$idl_file,$h_filename,$cnf_file) = @_;
1363
1364         $self->Initialize($cnf_file);
1365
1366         return (undef, undef) if defined($self->{conformance}->{noemit_dissector});
1367
1368         my $notice =
1369 "/* DO NOT EDIT
1370         This file was automatically generated by Pidl
1371         from $idl_file and $cnf_file.
1372
1373         Pidl is a perl based IDL compiler for DCE/RPC idl files.
1374         It is maintained by the Samba team, not the Wireshark team.
1375         Instructions on how to download and install Pidl can be
1376         found at https://wiki.wireshark.org/Pidl
1377 */
1378
1379 ";
1380
1381         $self->{res}->{headers} = "\n";
1382         $self->{res}->{headers} .= "#include \"config.h\"\n";
1383
1384         $self->{res}->{headers} .= "#include <string.h>\n";
1385         $self->{res}->{headers} .= "#include <wsutil/array.h>\n";
1386         $self->{res}->{headers} .= "#include <epan/packet.h>\n";
1387         $self->{res}->{headers} .= "#include <epan/tfs.h>\n\n";
1388
1389         $self->{res}->{headers} .= "#include \"packet-dcerpc.h\"\n";
1390         $self->{res}->{headers} .= "#include \"packet-dcerpc-nt.h\"\n";
1391         $self->{res}->{headers} .= "#include \"packet-windows-common.h\"\n";
1392
1393         my $h_basename = basename($h_filename);
1394
1395         $self->{res}->{headers} .= "#include \"$h_basename\"\n";
1396         $self->pidl_code("");
1397
1398         if (defined($self->{conformance}->{ett})) {
1399                 register_ett($self,$_) foreach(@{$self->{conformance}->{ett}})
1400         }
1401
1402         # Wireshark protocol registration
1403
1404         foreach (@$ndr) {
1405                 $self->ProcessInterface($_) if ($_->{TYPE} eq "INTERFACE");
1406                 $self->ProcessImport(@{$_->{PATHS}}) if ($_->{TYPE} eq "IMPORT");
1407                 $self->ProcessInclude(@{$_->{PATHS}}) if ($_->{TYPE} eq "INCLUDE");
1408         }
1409
1410         $self->{res}->{ett} = DumpEttDeclaration($self->{ett});
1411         $self->{res}->{hf} = $self->DumpHfDeclaration();
1412
1413         my $parser = $notice;
1414         $parser.= $self->{res}->{headers};
1415         $parser.=$self->{res}->{ett};
1416         $parser.=$self->{res}->{hf};
1417         $parser.=$self->{res}->{def};
1418         if (exists ($self->{conformance}->{override})) {
1419                 $parser.=$self->{conformance}->{override};
1420         }
1421         $parser.=$self->{res}->{code};
1422
1423         my $header = $notice;
1424         $header.=$self->{res}->{hdr};
1425
1426         $self->CheckUsed($self->{conformance});
1427
1428         return ($parser,$header);
1429 }
1430
1431 ###############################################################################
1432 # ETT
1433 ###############################################################################
1434
1435 sub register_ett($$)
1436 {
1437         my ($self, $name) = @_;
1438
1439         push (@{$self->{ett}}, $name);
1440 }
1441
1442 sub DumpEttList
1443 {
1444         my ($ett) = @_;
1445         my $res = "\tstatic int *ett[] = {\n";
1446         foreach (@$ett) {
1447                 $res .= "\t\t&$_,\n";
1448         }
1449
1450         return "$res\t};\n";
1451 }
1452
1453 sub DumpEttDeclaration
1454 {
1455         my ($ett) = @_;
1456         my $res = "\n/* Ett declarations */\n";
1457         foreach (@$ett) {
1458                 $res .= "static int $_;\n";
1459         }
1460
1461         return "$res\n";
1462 }
1463
1464 ###############################################################################
1465 # HF
1466 ###############################################################################
1467
1468 sub register_hf_field($$$$$$$$$)
1469 {
1470         my ($self,$index,$name,$filter_name,$ft_type,$base_type,$valsstring,$mask,$blurb) = @_;
1471
1472         if (defined ($self->{conformance}->{hf_renames}->{$index})) {
1473                 $self->{conformance}->{hf_renames}->{$index}->{USED} = 1;
1474                 return $self->{conformance}->{hf_renames}->{$index}->{NEWNAME};
1475         }
1476
1477         $self->{conformance}->{header_fields}->{$index} = {
1478                 INDEX => $index,
1479                 NAME => $name,
1480                 FILTER => $filter_name,
1481                 FT_TYPE => $ft_type,
1482                 BASE_TYPE => $base_type,
1483                 VALSSTRING => $valsstring,
1484                 MASK => $mask,
1485                 BLURB => $blurb
1486         };
1487
1488         if ((not defined($blurb) or $blurb eq "") and
1489                         defined($self->{conformance}->{fielddescription}->{$index})) {
1490                 $self->{conformance}->{header_fields}->{$index}->{BLURB} =
1491                         $self->{conformance}->{fielddescription}->{$index}->{DESCRIPTION};
1492                 $self->{conformance}->{fielddescription}->{$index}->{USED} = 1;
1493         }
1494
1495         return $index;
1496 }
1497
1498 sub change_hf_field_type($$$$)
1499 {
1500         my ($self,$index,$ft_type,$base_type) = @_;
1501         if (defined ($self->{conformance}->{hf_renames}->{$index})) {
1502                 print "Field $index has been renamed to ".$self->{conformance}->{hf_renames}->{$index}->{NEWNAME}." you can't change it's type";
1503                 return 0;
1504         }
1505
1506         if (!defined ($self->{conformance}->{header_fields}->{$index})) {
1507                 print "Field $index doesn't exists";
1508                 return 0;
1509         }
1510         $self->{conformance}->{header_fields}->{$index}->{FT_TYPE} = $ft_type;
1511         $self->{conformance}->{header_fields}->{$index}->{BASE_TYPE} = $base_type;
1512         return 1;
1513 }
1514
1515 sub DumpHfDeclaration($)
1516 {
1517         my ($self) = @_;
1518         my $res = "";
1519
1520         $res = "\n/* Header field declarations */\n";
1521
1522         foreach (sort(keys %{$self->{conformance}->{header_fields}}))
1523         {
1524                 $res .= "static int $_;\n";
1525         }
1526
1527         return "$res\n";
1528 }
1529
1530 sub make_str_or_null($)
1531 {
1532         my $str = shift;
1533         if (substr($str, 0, 1) eq "\"") {
1534                 $str = substr($str, 1, length($str)-2);
1535         }
1536         $str =~ s/^\s*//;
1537         $str =~ s/\s*$//;
1538         if ($str eq "") {
1539                 return "NULL";
1540         }
1541         return make_str($str);
1542 }
1543
1544 sub DumpHfList($)
1545 {
1546         my ($self) = @_;
1547         my $res = "\tstatic hf_register_info hf[] = {\n";
1548
1549         foreach (sort {$a->{INDEX} cmp $b->{INDEX}} values %{$self->{conformance}->{header_fields}})
1550         {
1551                 $res .= "\t{ &$_->{INDEX},\n".
1552                 "\t  { ".make_str($_->{NAME}).", ".make_str($_->{FILTER}).", $_->{FT_TYPE}, $_->{BASE_TYPE}, $_->{VALSSTRING}, $_->{MASK}, ".make_str_or_null($_->{BLURB}).", HFILL }},\n";
1553         }
1554
1555         return $res."\t};\n";
1556 }
1557
1558
1559 ###############################################################################
1560 # Function table
1561 ###############################################################################
1562
1563 sub DumpFunctionTable($)
1564 {
1565         my $if = shift;
1566
1567         my $res = "static const dcerpc_sub_dissector $if->{NAME}\_dissectors[] = {\n";
1568         foreach (@{$if->{FUNCTIONS}}) {
1569                 my $fn_name = $_->{NAME};
1570                 $fn_name =~ s/^$if->{NAME}_//;
1571                 $res.= "\t{ $_->{OPNUM}, \"$fn_name\",\n";
1572                 $res.= "\t   $if->{NAME}_dissect_${fn_name}_request, $if->{NAME}_dissect_${fn_name}_response},\n";
1573         }
1574
1575         $res .= "\t{ 0, NULL, NULL, NULL }\n";
1576
1577         return "$res};\n";
1578 }
1579
1580 sub CheckUsed($$)
1581 {
1582         my ($self, $conformance) = @_;
1583         foreach (values %{$conformance->{header_fields}}) {
1584                 if (not defined($self->{hf_used}->{$_->{INDEX}})) {
1585                         warning($_->{POS}, "hf field `$_->{INDEX}' not used");
1586                 }
1587         }
1588
1589         foreach (values %{$conformance->{hf_renames}}) {
1590                 if (not $_->{USED}) {
1591                         warning($_->{POS}, "hf field `$_->{OLDNAME}' not used");
1592                 }
1593         }
1594
1595         foreach (values %{$conformance->{dissectorparams}}) {
1596                 if (not $_->{USED}) {
1597                         warning($_->{POS}, "dissector param never used");
1598                 }
1599         }
1600
1601         foreach (values %{$conformance->{imports}}) {
1602                 if (not $_->{USED}) {
1603                         warning($_->{POS}, "import never used");
1604                 }
1605         }
1606
1607         foreach (values %{$conformance->{types}}) {
1608                 if (not $_->{USED} and defined($_->{POS})) {
1609                         warning($_->{POS}, "type never used");
1610                 }
1611         }
1612
1613         foreach (values %{$conformance->{fielddescription}}) {
1614                 if (not $_->{USED}) {
1615                         warning($_->{POS}, "description never used");
1616                 }
1617         }
1618
1619         foreach (values %{$conformance->{tfs}}) {
1620                 if (not $_->{USED}) {
1621                         warning($_->{POS}, "True/False description never used");
1622                 }
1623         }
1624 }
1625
1626 1;