pidl-wireshark: add definition for IPV4/IPV6 types
[samba.git] / 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 Parse::Pidl qw(error warning);
25 use Parse::Pidl::Typelist qw(getType);
26 use Parse::Pidl::Util qw(has_property property_matches make_str);
27 use Parse::Pidl::NDR qw(ContainsString GetNextLevel);
28 use Parse::Pidl::Dump qw(DumpType DumpFunction);
29 use Parse::Pidl::Wireshark::Conformance qw(ReadConformance);
30 use File::Basename;     
31
32 use vars qw($VERSION);
33 $VERSION = '0.01';
34
35 my %return_types = ();
36 my %dissector_used = ();
37
38 my %ptrtype_mappings = (
39         "unique" => "NDR_POINTER_UNIQUE",
40         "ref" => "NDR_POINTER_REF",
41         "ptr" => "NDR_POINTER_PTR"
42 );
43
44 sub StripPrefixes($$)
45 {
46         my ($s, $prefixes) = @_;
47
48         foreach (@$prefixes) {
49                 $s =~ s/^$_\_//g;
50         }
51
52         return $s;
53 }
54
55 # Convert a IDL structure field name (e.g access_mask) to a prettier
56 # string like 'Access Mask'.
57
58 sub field2name($)
59 {
60     my($field) = shift;
61
62     $field =~ s/_/ /g;          # Replace underscores with spaces
63     $field =~ s/(\w+)/\u\L$1/g; # Capitalise each word
64     
65     return $field;
66 }
67
68 sub new($)
69 {
70         my ($class) = @_;
71         my $self = {res => {hdr => "", def => "", code => ""}, tabs => "", cur_fn => undef,
72                 hf_used => {}, ett => [], conformance => undef
73
74         };
75         bless($self, $class);
76 }
77
78 sub pidl_fn_start($$)
79 {
80         my ($self, $fn) = @_;
81         $self->{cur_fn} = $fn;
82 }
83 sub pidl_fn_end($$)
84 {
85         my ($self, $fn) = @_;
86         die("Inconsistent state: $fn != $self->{cur_fn}") if ($fn ne $self->{cur_fn});
87         $self->{cur_fn} = undef;
88 }
89
90 sub pidl_code($$)
91 {
92         my ($self, $d) = @_;
93         return if (defined($self->{cur_fn}) and defined($self->{conformance}->{manual}->{$self->{cur_fn}}));
94  
95         if ($d) {
96                 $self->{res}->{code} .= $self->{tabs};
97                 $self->{res}->{code} .= $d;
98         }
99         $self->{res}->{code} .="\n";
100 }
101
102 sub pidl_hdr($$) { my ($self,$x) = @_; $self->{res}->{hdr} .= "$x\n"; }
103 sub pidl_def($$) { my ($self,$x) = @_; $self->{res}->{def} .= "$x\n"; }
104
105 sub indent($)
106 {
107         my ($self) = @_;
108         $self->{tabs} .= "\t";
109 }
110
111 sub deindent($)
112 {
113         my ($self) = @_;
114         $self->{tabs} = substr($self->{tabs}, 0, -1);
115 }
116
117 sub PrintIdl($$)
118 {
119         my ($self, $idl) = @_;
120
121         foreach (split /\n/, $idl) {
122                 $self->pidl_code("/* IDL: $_ */");
123         }
124
125         $self->pidl_code("");
126 }
127
128 #####################################################################
129 # parse the interface definitions
130 sub Interface($$)
131 {
132         my($self, $interface) = @_;
133         $self->Const($_,$interface->{NAME}) foreach (@{$interface->{CONSTS}});
134         $self->Type($_, $_->{NAME}, $interface->{NAME}) foreach (@{$interface->{TYPES}});
135         $self->Function($_,$interface->{NAME}) foreach (@{$interface->{FUNCTIONS}});
136 }
137
138 sub Enum($$$$)
139 {
140         my ($self, $e,$name,$ifname) = @_;
141         my $valsstring = "$ifname\_$name\_vals";
142         my $dissectorname = "$ifname\_dissect\_enum\_".StripPrefixes($name, $self->{conformance}->{strip_prefixes});
143
144         return if (defined($self->{conformance}->{noemit}->{StripPrefixes($name, $self->{conformance}->{strip_prefixes})}));
145
146         foreach (@{$e->{ELEMENTS}}) {
147                 if (/([^=]*)=(.*)/) {
148                         $self->pidl_hdr("#define $1 ($2)");
149                 }
150         }
151         
152         $self->pidl_hdr("extern const value_string $valsstring\[];");
153         $self->pidl_hdr("int $dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, guint8 *drep _U_, int hf_index _U_, guint32 *param _U_);");
154
155         $self->pidl_def("const value_string ".$valsstring."[] = {");
156         foreach (@{$e->{ELEMENTS}}) {
157                 next unless (/([^=]*)=(.*)/);
158                 $self->pidl_def("\t{ $1, \"$1\" },");
159         }
160
161         $self->pidl_def("{ 0, NULL }");
162         $self->pidl_def("};");
163
164         $self->pidl_fn_start($dissectorname);
165         $self->pidl_code("int");
166         $self->pidl_code("$dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, guint8 *drep _U_, int hf_index _U_, guint32 *param _U_)");
167         $self->pidl_code("{");
168         $self->indent;
169         $self->pidl_code("g$e->{BASE_TYPE} parameter=0;");
170         $self->pidl_code("if(param){");
171         $self->indent;
172         $self->pidl_code("parameter=(g$e->{BASE_TYPE})*param;");
173         $self->deindent;
174         $self->pidl_code("}");
175         $self->pidl_code("offset = dissect_ndr_$e->{BASE_TYPE}(tvb, offset, pinfo, tree, drep, hf_index, &parameter);");
176         $self->pidl_code("if(param){");
177         $self->indent;
178         $self->pidl_code("*param=(guint32)parameter;");
179         $self->deindent;
180         $self->pidl_code("}");
181         $self->pidl_code("return offset;");
182         $self->deindent;
183         $self->pidl_code("}\n");
184         $self->pidl_fn_end($dissectorname);
185
186         my $enum_size = $e->{BASE_TYPE};
187         $enum_size =~ s/uint//g;
188         $self->register_type($name, "offset = $dissectorname(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);", "FT_UINT$enum_size", "BASE_DEC", "0", "VALS($valsstring)", $enum_size / 8);
189 }
190
191 sub Pipe($$$$)
192 {
193         my ($self,$e,$name,$ifname) = @_;
194         error($e->{ORIGINAL}, "Pipe not yet supported");
195         return;
196 }
197
198 sub Bitmap($$$$)
199 {
200         my ($self,$e,$name,$ifname) = @_;
201         my $dissectorname = "$ifname\_dissect\_bitmap\_".StripPrefixes($name, $self->{conformance}->{strip_prefixes});
202
203         $self->register_ett("ett_$ifname\_$name");
204
205         $self->pidl_hdr("int $dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, guint8 *drep _U_, int hf_index _U_, guint32 param _U_);");
206
207         $self->pidl_fn_start($dissectorname);
208         $self->pidl_code("int");
209         $self->pidl_code("$dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *parent_tree _U_, guint8 *drep _U_, int hf_index _U_, guint32 param _U_)");
210         $self->pidl_code("{");
211         $self->indent;
212         $self->pidl_code("proto_item *item = NULL;");
213         $self->pidl_code("proto_tree *tree = NULL;");
214         $self->pidl_code("");
215                 
216         $self->pidl_code("g$e->{BASE_TYPE} flags;");
217         if ($e->{ALIGN} > 1) {
218                 $self->pidl_code("ALIGN_TO_$e->{ALIGN}_BYTES;");
219         }
220
221         $self->pidl_code("");
222
223         $self->pidl_code("if (parent_tree) {");
224         $self->indent;
225         $self->pidl_code("item = proto_tree_add_item(parent_tree, hf_index, tvb, offset, $e->{ALIGN}, DREP_ENC_INTEGER(drep));");
226         $self->pidl_code("tree = proto_item_add_subtree(item,ett_$ifname\_$name);");
227         $self->deindent;
228         $self->pidl_code("}\n");
229
230         $self->pidl_code("offset = dissect_ndr_$e->{BASE_TYPE}(tvb, offset, pinfo, NULL, drep, -1, &flags);");
231
232         $self->pidl_code("proto_item_append_text(item, \": \");\n");
233         $self->pidl_code("if (!flags)");
234         $self->pidl_code("\tproto_item_append_text(item, \"(No values set)\");\n");
235
236         foreach (@{$e->{ELEMENTS}}) {
237                 next unless (/([^ ]*) (.*)/);
238                 my ($en,$ev) = ($1,$2);
239                 my $hf_bitname = "hf_$ifname\_$name\_$en";
240                 my $filtername = "$ifname\.$name\.$en";
241
242                 $self->{hf_used}->{$hf_bitname} = 1;
243                 
244                 $self->register_hf_field($hf_bitname, field2name($en), $filtername, "FT_BOOLEAN", $e->{ALIGN} * 8, "TFS(&$name\_$en\_tfs)", $ev, "");
245
246                 $self->pidl_def("static const true_false_string $name\_$en\_tfs = {");
247                 if (defined($self->{conformance}->{tfs}->{$hf_bitname})) {
248                         $self->pidl_def("   $self->{conformance}->{tfs}->{$hf_bitname}->{TRUE_STRING},");
249                         $self->pidl_def("   $self->{conformance}->{tfs}->{$hf_bitname}->{FALSE_STRING},");
250                         $self->{conformance}->{tfs}->{$hf_bitname}->{USED} = 1;
251                 } else {
252                         $self->pidl_def("   \"$en is SET\",");
253                         $self->pidl_def("   \"$en is NOT SET\",");
254                 }
255                 $self->pidl_def("};");
256                 
257                 $self->pidl_code("proto_tree_add_boolean(tree, $hf_bitname, tvb, offset-$e->{ALIGN}, $e->{ALIGN}, flags);");
258                 $self->pidl_code("if (flags&$ev){");
259                 $self->pidl_code("\tproto_item_append_text(item, \"$en\");");
260                 $self->pidl_code("\tif (flags & (~$ev))");
261                 $self->pidl_code("\t\tproto_item_append_text(item, \", \");");
262                 $self->pidl_code("}");
263                 $self->pidl_code("flags&=(~$ev);");
264                 $self->pidl_code("");
265         }
266
267         $self->pidl_code("if (flags) {");
268         $self->pidl_code("\tproto_item_append_text(item, \"Unknown bitmap value 0x%x\", flags);");
269         $self->pidl_code("}\n");
270         $self->pidl_code("return offset;");
271         $self->deindent;
272         $self->pidl_code("}\n");
273         $self->pidl_fn_end($dissectorname);
274
275         my $size = $e->{BASE_TYPE};
276         $size =~ s/uint//g;
277         $self->register_type($name, "offset = $dissectorname(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);", "FT_UINT$size", "BASE_HEX", "0", "NULL", $size/8);
278 }
279
280 sub ElementLevel($$$$$$$$)
281 {
282         my ($self,$e,$l,$hf,$myname,$pn,$ifname,$param) = @_;
283
284         if (defined($self->{conformance}->{dissectorparams}->{$myname})) {
285                 $param = $self->{conformance}->{dissectorparams}->{$myname}->{PARAM};
286         }
287
288         if ($l->{TYPE} eq "POINTER") {
289                 my $type;
290                 if ($l->{LEVEL} eq "TOP") {
291                         $type = "toplevel";
292                 } elsif ($l->{LEVEL} eq "EMBEDDED") {
293                         $type = "embedded";
294                 }
295                 $self->pidl_code("offset = dissect_ndr_$type\_pointer(tvb, offset, pinfo, tree, drep, $myname\_, $ptrtype_mappings{$l->{POINTER_TYPE}}, \"Pointer to ".field2name(StripPrefixes($e->{NAME}, $self->{conformance}->{strip_prefixes})) . " ($e->{TYPE})\",$hf);");
296         } elsif ($l->{TYPE} eq "ARRAY") {
297                 if ($l->{IS_INLINE}) {
298                         error($e->{ORIGINAL}, "Inline arrays not supported");
299                 } elsif ($l->{IS_FIXED}) {
300                         $self->pidl_code("int i;");
301                         $self->pidl_code("for (i = 0; i < $l->{SIZE_IS}; i++)");
302                         $self->pidl_code("\toffset = $myname\_(tvb, offset, pinfo, tree, drep);");
303                 } else {
304                         my $type = "";
305                         $type .= "c" if ($l->{IS_CONFORMANT});
306                         $type .= "v" if ($l->{IS_VARYING});
307
308                         unless ($l->{IS_ZERO_TERMINATED}) {
309                                 $self->pidl_code("offset = dissect_ndr_u" . $type . "array(tvb, offset, pinfo, tree, drep, $myname\_);");
310                         } else {
311                                 my $nl = GetNextLevel($e,$l);
312                                 $self->pidl_code("char *data;");
313                                 $self->pidl_code("");
314                                 $self->pidl_code("offset = dissect_ndr_$type" . "string(tvb, offset, pinfo, tree, drep, sizeof(g$nl->{DATA_TYPE}), $hf, FALSE, &data);");
315                                 $self->pidl_code("proto_item_append_text(tree, \": %s\", data);");
316                         }
317                 }
318         } elsif ($l->{TYPE} eq "DATA") {
319                 if ($l->{DATA_TYPE} eq "string") {
320                         my $bs = 2; # Byte size defaults to that of UCS2
321
322
323                         ($bs = 1) if (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_ASCII.*"));
324                         
325                         if (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_SIZE4.*") and property_matches($e, "flag", ".*LIBNDR_FLAG_STR_LEN4.*")) {
326                                 $self->pidl_code("char *data;\n");
327                                 $self->pidl_code("offset = dissect_ndr_cvstring(tvb, offset, pinfo, tree, drep, $bs, $hf, FALSE, &data);");
328                                 $self->pidl_code("proto_item_append_text(tree, \": %s\", data);");
329                         } elsif (property_matches($e, "flag", ".*LIBNDR_FLAG_STR_SIZE4.*")) {
330                                 $self->pidl_code("offset = dissect_ndr_vstring(tvb, offset, pinfo, tree, drep, $bs, $hf, FALSE, NULL);");
331                         } elsif (property_matches($e, "flag", ".*STR_NULLTERM.*")) {
332                                 if ($bs == 2) {
333                                         $self->pidl_code("offset = dissect_null_term_wstring(tvb, offset, pinfo, tree, drep, $hf , 0);")
334                                 } else {
335                                         $self->pidl_code("offset = dissect_null_term_string(tvb, offset, pinfo, tree, drep, $hf , 0);")
336                                 }
337                         } else {
338                                 warn("Unable to handle string with flags $e->{PROPERTIES}->{flag}");
339                         }
340                 } elsif ($l->{DATA_TYPE} eq "DATA_BLOB") {
341                         my $remain = 0;
342                         $remain = 1 if (property_matches($e->{ORIGINAL}, "flag", ".*LIBNDR_FLAG_REMAINING.*"));
343                         $self->pidl_code("offset = dissect_ndr_datablob(tvb, offset, pinfo, tree, drep, $hf, $remain);");
344                 } else {
345                         my $call;
346
347                         if ($self->{conformance}->{imports}->{$l->{DATA_TYPE}}) {
348                                 $call = $self->{conformance}->{imports}->{$l->{DATA_TYPE}}->{DATA};
349                                 $self->{conformance}->{imports}->{$l->{DATA_TYPE}}->{USED} = 1;
350
351                         } elsif (defined($self->{conformance}->{imports}->{"$pn.$e->{NAME}"})) {
352                                 $call = $self->{conformance}->{imports}->{"$pn.$e->{NAME}"}->{DATA};
353                                 $self->{conformance}->{imports}->{"$pn.$e->{NAME}"}->{USED} = 1;
354
355                         } elsif (defined($self->{conformance}->{types}->{$l->{DATA_TYPE}})) {
356                                 $call= $self->{conformance}->{types}->{$l->{DATA_TYPE}}->{DISSECTOR_NAME};
357                                 $self->{conformance}->{types}->{$l->{DATA_TYPE}}->{USED} = 1;
358                         } else {
359                                 my $t;
360                                 if (ref($l->{DATA_TYPE}) eq "HASH" ) {
361                                         $t = "$l->{DATA_TYPE}->{TYPE}_$l->{DATA_TYPE}->{NAME}";
362                                 } else {
363                                         $t = $l->{DATA_TYPE};
364                                 }
365
366                                 $self->pidl_code("offset = $ifname\_dissect_struct_" . $t . "(tvb,offset,pinfo,tree,drep,$hf,$param);");
367
368                                 return;
369                         }
370
371                         $call =~ s/\@HF\@/$hf/g;
372                         $call =~ s/\@PARAM\@/$param/g;
373                         $self->pidl_code($call);
374                 }
375         } elsif ($_->{TYPE} eq "SUBCONTEXT") {
376                 my $varswitch;
377                 if (has_property($e, "switch_is")) {
378                         $varswitch = $e->{PROPERTIES}->{switch_is};
379                 }
380                 my $num_bits = ($l->{HEADER_SIZE}*8);
381                 my $hf2 = $self->register_hf_field($hf."_", "Subcontext length", "$ifname.$pn.$_->{NAME}subcontext", "FT_UINT$num_bits", "BASE_HEX", "NULL", 0, "");
382                 $num_bits = 3264 if ($num_bits == 32);
383                 $self->{hf_used}->{$hf2} = 1;
384                 $self->pidl_code("dcerpc_info *di = (dcerpc_info*)pinfo->private_data;");
385                 $self->pidl_code("guint$num_bits size;");
386                 $self->pidl_code("int conformant = di->conformant_run;");
387                 $self->pidl_code("tvbuff_t *subtvb;");
388                 $self->pidl_code("");
389                 # We need to be able to dissect the length of the context in every case
390                 # and conformant run skips the dissections of scalars ...
391                 $self->pidl_code("if (!conformant) {");
392                 $self->indent;
393                 $self->pidl_code("guint32 saved_flags = di->call_data->flags;");
394                 $self->pidl_code("offset = dissect_ndr_uint$num_bits(tvb, offset, pinfo, tree, drep, $hf2, &size);");
395                 # This is a subcontext, there is normally no such thing as
396                 # 64 bit NDR is subcontext so we clear the flag so that we can
397                 # continue to dissect handmarshalled stuff with pidl
398                 $self->pidl_code("di->call_data->flags &= ~DCERPC_IS_NDR64;");
399
400                 $self->pidl_code("subtvb = tvb_new_subset(tvb, offset, size, -1);");
401                 if ($param ne 0) {
402                         $self->pidl_code("$myname\_(subtvb, 0, pinfo, tree, drep, $param);");
403                 } else {
404                         $self->pidl_code("$myname\_(subtvb, 0, pinfo, tree, drep);");
405                 }
406                 $self->pidl_code("offset += size;");
407                 $self->pidl_code("di->call_data->flags = saved_flags;");
408                 $self->deindent;
409                 $self->pidl_code("}");
410         } elsif ($_->{TYPE} eq "PIPE") {
411                 error($e->{ORIGINAL}, "Type PIPE not yet supported");
412         } else {
413                 die("Unknown type `$_->{TYPE}'");
414         }
415 }
416
417 sub Element($$$$$)
418 {
419         my ($self,$e,$pn,$ifname,$isoruseswitch) = @_;
420
421         my $dissectorname = "$ifname\_dissect\_element\_".StripPrefixes($pn, $self->{conformance}->{strip_prefixes})."\_".StripPrefixes($e->{NAME}, $self->{conformance}->{strip_prefixes});
422
423         my ($call_code, $moreparam);
424         my $param = 0;
425         if (defined $isoruseswitch) {
426                 my $type = $isoruseswitch->[0];
427                 my $name = $isoruseswitch->[1];
428
429                 my $switch_dt =  getType($type);
430                 my $switch_type;
431                 if ($switch_dt->{DATA}->{TYPE} eq "ENUM") {
432                         $switch_type = "g".Parse::Pidl::Typelist::enum_type_fn($switch_dt->{DATA});
433                 } elsif ($switch_dt->{DATA}->{TYPE} eq "SCALAR") {
434                         $switch_type = "g$e->{SWITCH_TYPE}";
435                 }
436                 $moreparam = ", $switch_type *".$name;
437                 $param = $name;
438                 $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, drep, &$name);";
439         } else {
440                 $moreparam = "";
441                 $call_code = "offset = $dissectorname(tvb, offset, pinfo, tree, drep);";
442         }
443
444
445         my $type = $self->find_type($e->{TYPE});
446
447         if (not defined($type)) {
448                 # default settings
449                 $type = {
450                         MASK => 0,
451                         VALSSTRING => "NULL",
452                         FT_TYPE => "FT_NONE",
453                         BASE_TYPE => "BASE_NONE"
454                 };
455         }
456
457         if (ContainsString($e)) {
458                 $type = {
459                         MASK => 0,
460                         VALSSTRING => "NULL",
461                         FT_TYPE => "FT_STRING",
462                         BASE_TYPE => "BASE_NONE"
463                 };
464         }
465
466         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}, "");
467         $self->{hf_used}->{$hf} = 1;
468
469         my $eltname = StripPrefixes($pn, $self->{conformance}->{strip_prefixes}) . ".$e->{NAME}";
470         if (defined($self->{conformance}->{noemit}->{$eltname})) {
471                 return $call_code;
472         }
473
474         my $add = "";
475
476         my $oldparam = undef;
477         foreach (@{$e->{LEVELS}}) {
478                 if (defined $_->{SWITCH_IS}) {
479                         $oldparam = $param;
480                         $param = "*$param";
481                 }
482                 next if ($_->{TYPE} eq "SWITCH");
483                 $self->pidl_def("static int $dissectorname$add(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, guint8 *drep _U_$moreparam);");
484                 $self->pidl_fn_start("$dissectorname$add");
485                 $self->pidl_code("static int");
486                 $self->pidl_code("$dissectorname$add(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, guint8 *drep _U_$moreparam)");
487                 $self->pidl_code("{");
488                 $self->indent;
489
490                 $self->ElementLevel($e,$_,$hf,$dissectorname.$add,$pn,$ifname,$param);
491                 if (defined $oldparam) {
492                         $param = $oldparam;
493                 }
494
495                 $self->pidl_code("");
496                 $self->pidl_code("return offset;");
497                 $self->deindent;
498                 $self->pidl_code("}\n");
499                 $self->pidl_fn_end("$dissectorname$add");
500                 $add.="_";
501                 last if ($_->{TYPE} eq "ARRAY" and $_->{IS_ZERO_TERMINATED});
502         }
503
504         return $call_code;
505 }
506
507 sub Function($$$)
508 {
509         my ($self, $fn,$ifname) = @_;
510
511         my %dissectornames;
512
513         foreach (@{$fn->{ELEMENTS}}) {
514             $dissectornames{$_->{NAME}} = $self->Element($_, $fn->{NAME}, $ifname, undef) if not defined($dissectornames{$_->{NAME}});
515         }
516         
517         my $fn_name = $_->{NAME};
518         $fn_name =~ s/^${ifname}_//;
519
520         $self->PrintIdl(DumpFunction($fn->{ORIGINAL}));
521         $self->pidl_fn_start("$ifname\_dissect\_$fn_name\_response");
522         $self->pidl_code("static int");
523         $self->pidl_code("$ifname\_dissect\_${fn_name}_response(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, guint8 *drep _U_)");
524         $self->pidl_code("{");
525         $self->indent;
526         if ( not defined($fn->{RETURN_TYPE})) {
527         } elsif ($fn->{RETURN_TYPE} eq "NTSTATUS" or $fn->{RETURN_TYPE} eq "WERROR") 
528         {
529                 $self->pidl_code("guint32 status;\n");
530         } elsif (my $type = getType($fn->{RETURN_TYPE})) {
531                 if ($type->{DATA}->{TYPE} eq "ENUM") {
532                         $self->pidl_code("g".Parse::Pidl::Typelist::enum_type_fn($type->{DATA}) . " status;\n");
533                 } elsif ($type->{DATA}->{TYPE} eq "SCALAR") {
534                         $self->pidl_code("g$fn->{RETURN_TYPE} status;\n");
535                 } else {
536                 error($fn, "return type `$fn->{RETURN_TYPE}' not yet supported");
537                 }
538         } else {
539                 error($fn, "unknown return type `$fn->{RETURN_TYPE}'");
540         }
541
542         $self->pidl_code("pinfo->dcerpc_procedure_name=\"${fn_name}\";");
543         foreach (@{$fn->{ELEMENTS}}) {
544                 if (grep(/out/,@{$_->{DIRECTION}})) {
545                         $self->pidl_code("$dissectornames{$_->{NAME}}");
546                         $self->pidl_code("offset = dissect_deferred_pointers(pinfo, tvb, offset, drep);");
547                         $self->pidl_code("");
548                 }
549         }
550
551         if (not defined($fn->{RETURN_TYPE})) {
552         } elsif ($fn->{RETURN_TYPE} eq "NTSTATUS") {
553                 $self->pidl_code("offset = dissect_ntstatus(tvb, offset, pinfo, tree, drep, hf\_$ifname\_status, &status);\n");
554                 $self->pidl_code("if (status != 0)");
555                 $self->pidl_code("\tcol_append_fstr(pinfo->cinfo, COL_INFO, \", Error: %s\", val_to_str(status, NT_errors, \"Unknown NT status 0x%08x\"));\n");
556                 $return_types{$ifname}->{"status"} = ["NTSTATUS", "NT Error"];
557         } elsif ($fn->{RETURN_TYPE} eq "WERROR") {
558                 $self->pidl_code("offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, drep, hf\_$ifname\_werror, &status);\n");
559                 $self->pidl_code("if (status != 0)");
560                 $self->pidl_code("\tcol_append_fstr(pinfo->cinfo, COL_INFO, \", Error: %s\", val_to_str(status, WERR_errors, \"Unknown DOS error 0x%08x\"));\n");
561                 
562                 $return_types{$ifname}->{"werror"} = ["WERROR", "Windows Error"];
563         } elsif (my $type = getType($fn->{RETURN_TYPE})) {
564                 if ($type->{DATA}->{TYPE} eq "ENUM") {
565                         my $return_type = "g".Parse::Pidl::Typelist::enum_type_fn($type->{DATA});
566                         my $return_dissect = "dissect_ndr_" .Parse::Pidl::Typelist::enum_type_fn($type->{DATA});
567
568                         $self->pidl_code("offset = $return_dissect(tvb, offset, pinfo, tree, drep, hf\_$ifname\_$fn->{RETURN_TYPE}_status, &status);");
569                         $self->pidl_code("if (status != 0)");
570                         $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");
571                         $return_types{$ifname}->{$fn->{RETURN_TYPE}."_status"} = [$fn->{RETURN_TYPE}, $fn->{RETURN_TYPE}];
572                 } elsif ($type->{DATA}->{TYPE} eq "SCALAR") {
573                         $self->pidl_code("offset = dissect_ndr_$fn->{RETURN_TYPE}(tvb, offset, pinfo, tree, drep, hf\_$ifname\_$fn->{RETURN_TYPE}_status, &status);");
574                         $self->pidl_code("if (status != 0)");
575                         $self->pidl_code("\tcol_append_fstr(pinfo->cinfo, COL_INFO, \", Status: %d\", status);\n");
576                         $return_types{$ifname}->{$fn->{RETURN_TYPE}."_status"} = [$fn->{RETURN_TYPE}, $fn->{RETURN_TYPE}];
577                 }
578         }
579
580         $self->pidl_code("return offset;");
581         $self->deindent;
582         $self->pidl_code("}\n");
583         $self->pidl_fn_end("$ifname\_dissect\_$fn_name\_response");
584
585         $self->pidl_fn_start("$ifname\_dissect\_$fn_name\_request");
586         $self->pidl_code("static int");
587         $self->pidl_code("$ifname\_dissect\_${fn_name}_request(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, guint8 *drep _U_)");
588         $self->pidl_code("{");
589         $self->indent;
590         $self->pidl_code("pinfo->dcerpc_procedure_name=\"${fn_name}\";");
591         foreach (@{$fn->{ELEMENTS}}) {
592                 if (grep(/in/,@{$_->{DIRECTION}})) {
593                         $self->pidl_code("$dissectornames{$_->{NAME}}");
594                         $self->pidl_code("offset = dissect_deferred_pointers(pinfo, tvb, offset, drep);");
595                 }
596
597         }
598
599         $self->pidl_code("return offset;");
600         $self->deindent;
601         $self->pidl_code("}\n");
602         $self->pidl_fn_end("$ifname\_dissect\_$fn_name\_request");
603 }
604
605 sub Struct($$$$)
606 {
607         my ($self,$e,$name,$ifname) = @_;
608         my $dissectorname = "$ifname\_dissect\_struct\_".StripPrefixes($name, $self->{conformance}->{strip_prefixes});
609
610         return if (defined($self->{conformance}->{noemit}->{StripPrefixes($name, $self->{conformance}->{strip_prefixes})}));
611
612         $self->register_ett("ett_$ifname\_$name");
613
614         my $res = "";
615         my $varswitchs = {};
616         # will contain the switch var declaration;
617         my $vars = [];
618         foreach (@{$e->{ELEMENTS}}) {
619                 if (has_property($_, "switch_is")) {
620                         $varswitchs->{$_->{PROPERTIES}->{switch_is}} = [];
621                 }
622         }
623         foreach (@{$e->{ELEMENTS}}) {
624                 my $switch_info = undef;
625
626                 my $v = $_->{NAME};
627                 if (scalar(grep {/^$v$/} keys(%$varswitchs)) == 1) {
628                         # This element is one of the switch attribute
629                         my $switch_dt =  getType($_->{TYPE});
630                         my $switch_type;
631                         if ($switch_dt->{DATA}->{TYPE} eq "ENUM") {
632                                 $switch_type = "g".Parse::Pidl::Typelist::enum_type_fn($switch_dt->{DATA});
633                         } elsif ($switch_dt->{DATA}->{TYPE} eq "SCALAR") {
634                                 $switch_type = "g$e->{SWITCH_TYPE}";
635                         }
636
637                         push @$vars, "$switch_type $v;";
638                         $switch_info = [ $_->{TYPE}, $v ];
639                         $varswitchs->{$v} = $switch_info;
640                 }
641
642                 if (has_property($_, "switch_is")) {
643                         my $varswitch = $_->{PROPERTIES}->{switch_is};
644                         $switch_info = $varswitchs->{$varswitch};
645                 }
646
647                 $res.="\t".$self->Element($_, $name, $ifname, $switch_info)."\n\n";
648         }
649
650         $self->pidl_hdr("int $dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *parent_tree _U_, guint8 *drep _U_, int hf_index _U_, guint32 param _U_);");
651
652         $self->pidl_fn_start($dissectorname);
653         $self->pidl_code("int");
654         $self->pidl_code("$dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *parent_tree _U_, guint8 *drep _U_, int hf_index _U_, guint32 param _U_)");
655         $self->pidl_code("{");
656         $self->indent;
657         $self->pidl_code($_) foreach (@$vars);
658         $self->pidl_code("proto_item *item = NULL;");
659         $self->pidl_code("proto_tree *tree = NULL;");
660         if ($e->{ALIGN} > 1) {
661                 $self->pidl_code("dcerpc_info *di = (dcerpc_info *)pinfo->private_data;");
662         }
663         $self->pidl_code("int old_offset;");
664         $self->pidl_code("");
665
666         if ($e->{ALIGN} > 1 and not property_matches($e, "flag", ".*LIBNDR_FLAG_NOALIGN.*")) {
667                 $self->pidl_code("ALIGN_TO_$e->{ALIGN}_BYTES;");
668         }
669         $self->pidl_code("");
670
671         $self->pidl_code("old_offset = offset;");
672         $self->pidl_code("");
673         $self->pidl_code("if (parent_tree) {");
674         $self->indent;
675         $self->pidl_code("item = proto_tree_add_item(parent_tree, hf_index, tvb, offset, -1, ENC_NA);");
676         $self->pidl_code("tree = proto_item_add_subtree(item, ett_$ifname\_$name);");
677         $self->deindent;
678         $self->pidl_code("}");
679
680         $self->pidl_code("\n$res");
681
682         $self->pidl_code("proto_item_set_len(item, offset-old_offset);\n");
683         if ($e->{ALIGN} > 1) {
684                 $self->pidl_code("");
685                 $self->pidl_code("if (di->call_data->flags & DCERPC_IS_NDR64) {");
686                 $self->indent;
687                 $self->pidl_code("ALIGN_TO_$e->{ALIGN}_BYTES;");
688                 $self->deindent;
689                 $self->pidl_code("}");
690         }
691         $self->pidl_code("");
692         $self->pidl_code("return offset;");
693         $self->deindent;
694         $self->pidl_code("}\n");
695         $self->pidl_fn_end($dissectorname);
696
697         $self->register_type($name, "offset = $dissectorname(tvb,offset,pinfo,tree,drep,\@HF\@,\@PARAM\@);", "FT_NONE", "BASE_NONE", 0, "NULL", 0);
698 }
699
700 sub Union($$$$)
701 {
702         my ($self,$e,$name,$ifname) = @_;
703
704         my $dissectorname = "$ifname\_dissect_".StripPrefixes($name, $self->{conformance}->{strip_prefixes});
705
706         return if (defined($self->{conformance}->{noemit}->{StripPrefixes($name, $self->{conformance}->{strip_prefixes})}));
707         
708         $self->register_ett("ett_$ifname\_$name");
709
710         my $res = "";
711         foreach (@{$e->{ELEMENTS}}) {
712                 $res.="\n\t\t$_->{CASE}:\n";
713                 if ($_->{TYPE} ne "EMPTY") {
714                         $res.="\t\t\t".$self->Element($_, $name, $ifname, undef)."\n";
715                 }
716                 $res.="\t\tbreak;\n";
717         }
718
719         my $switch_type;
720         my $switch_dissect;
721         my $switch_dt = getType($e->{SWITCH_TYPE});
722         if ($switch_dt->{DATA}->{TYPE} eq "ENUM") {
723                 $switch_type = "g".Parse::Pidl::Typelist::enum_type_fn($switch_dt->{DATA});
724                 $switch_dissect = "dissect_ndr_" .Parse::Pidl::Typelist::enum_type_fn($switch_dt->{DATA});
725         } elsif ($switch_dt->{DATA}->{TYPE} eq "SCALAR") {
726                 $switch_type = "g$e->{SWITCH_TYPE}";
727                 $switch_dissect = "dissect_ndr_$e->{SWITCH_TYPE}";
728         }
729
730         $self->pidl_fn_start($dissectorname);
731         $self->pidl_code("static int");
732         $self->pidl_code("$dissectorname(tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *parent_tree _U_, guint8 *drep _U_, int hf_index _U_, guint32 param _U_)");
733         $self->pidl_code("{");
734         $self->indent;
735         $self->pidl_code("proto_item *item = NULL;");
736         $self->pidl_code("proto_tree *tree = NULL;");
737         $self->pidl_code("int old_offset;");
738         if (!defined $switch_type) {
739                 $self->pidl_code("guint32 level = param;");
740         } else {
741                 $self->pidl_code("$switch_type level;");
742         }
743         $self->pidl_code("");
744
745         $self->pidl_code("old_offset = offset;");
746         $self->pidl_code("if (parent_tree) {");
747         $self->indent;
748         $self->pidl_code("item = proto_tree_add_text(parent_tree, tvb, offset, -1, \"$name\");");
749         $self->pidl_code("tree = proto_item_add_subtree(item, ett_$ifname\_$name);");
750         $self->deindent;
751         $self->pidl_code("}");
752
753         $self->pidl_code("");
754
755         if (defined $switch_type) {
756                 $self->pidl_code("offset = $switch_dissect(tvb, offset, pinfo, tree, drep, hf_index, &level);");
757
758                 if ($e->{ALIGN} > 1) {
759                         $self->pidl_code("ALIGN_TO_$e->{ALIGN}_BYTES;");
760                         $self->pidl_code("");
761                 }
762         }
763
764
765         $self->pidl_code("switch(level) {$res\t}");
766         $self->pidl_code("proto_item_set_len(item, offset-old_offset);\n");
767         $self->pidl_code("");
768
769         $self->pidl_code("return offset;");
770         $self->deindent;
771         $self->pidl_code("}");
772         $self->pidl_fn_end($dissectorname);
773
774         $self->register_type($name, "offset = $dissectorname(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);", "FT_NONE", "BASE_NONE", 0, "NULL", 0);
775 }
776
777 sub Const($$$)
778 {
779         my ($self,$const,$ifname) = @_;
780         
781         if (!defined($const->{ARRAY_LEN}[0])) {
782                 $self->pidl_hdr("#define $const->{NAME}\t( $const->{VALUE} )\n");
783         } else {
784                 $self->pidl_hdr("#define $const->{NAME}\t $const->{VALUE}\n");
785         }
786 }
787
788 sub Typedef($$$$)
789 {
790         my ($self,$e,$name,$ifname) = @_;
791
792         $self->Type($e->{DATA}, $name, $ifname);
793 }
794
795 sub Type($$$$)
796 {
797         my ($self, $e, $name, $ifname) = @_;
798
799         $self->PrintIdl(DumpType($e->{ORIGINAL}));
800         {
801                 ENUM => \&Enum,
802                 STRUCT => \&Struct,
803                 UNION => \&Union,
804                 BITMAP => \&Bitmap,
805                 TYPEDEF => \&Typedef,
806                 PIPE    => \&Pipe
807         }->{$e->{TYPE}}->($self, $e, $name, $ifname);
808 }
809
810 sub RegisterInterface($$)
811 {
812         my ($self, $x) = @_;
813
814         $self->pidl_fn_start("proto_register_dcerpc_$x->{NAME}");
815         $self->pidl_code("void proto_register_dcerpc_$x->{NAME}(void)");
816         $self->pidl_code("{");
817         $self->indent;
818
819         $self->{res}->{code}.=$self->DumpHfList()."\n";
820         $self->{res}->{code}.="\n".DumpEttList($self->{ett})."\n";
821         
822         if (defined($x->{UUID})) {
823             # These can be changed to non-pidl_code names if the old dissectors
824             # in epan/dissctors are deleted.
825     
826             my $name = uc($x->{NAME}) . " (pidl)";
827             my $short_name = uc($x->{NAME});
828             my $filter_name = $x->{NAME};
829
830             if (has_property($x, "helpstring")) {
831                 $name = $x->{PROPERTIES}->{helpstring};
832             }
833
834             if (defined($self->{conformance}->{protocols}->{$x->{NAME}})) {
835                 $short_name = $self->{conformance}->{protocols}->{$x->{NAME}}->{SHORTNAME};
836                 $name = $self->{conformance}->{protocols}->{$x->{NAME}}->{LONGNAME};
837                 $filter_name = $self->{conformance}->{protocols}->{$x->{NAME}}->{FILTERNAME};
838             }
839
840             $self->pidl_code("proto_dcerpc_$x->{NAME} = proto_register_protocol(".make_str($name).", ".make_str($short_name).", ".make_str($filter_name).");");
841             
842             $self->pidl_code("proto_register_field_array(proto_dcerpc_$x->{NAME}, hf, array_length (hf));");
843             $self->pidl_code("proto_register_subtree_array(ett, array_length(ett));");
844         } else {
845             $self->pidl_code("proto_dcerpc = proto_get_id_by_filter_name(\"dcerpc\");");
846             $self->pidl_code("proto_register_field_array(proto_dcerpc, hf, array_length(hf));");
847             $self->pidl_code("proto_register_subtree_array(ett, array_length(ett));");
848         }
849             
850         $self->deindent;
851         $self->pidl_code("}\n");
852         $self->pidl_fn_end("proto_register_dcerpc_$x->{NAME}");
853 }
854
855 sub RegisterInterfaceHandoff($$)
856 {
857         my ($self,$x) = @_;
858
859         if (defined($x->{UUID})) {
860                 $self->pidl_fn_start("proto_reg_handoff_dcerpc_$x->{NAME}");
861             $self->pidl_code("void proto_reg_handoff_dcerpc_$x->{NAME}(void)");
862             $self->pidl_code("{");
863             $self->indent;
864             $self->pidl_code("dcerpc_init_uuid(proto_dcerpc_$x->{NAME}, ett_dcerpc_$x->{NAME},");
865             $self->pidl_code("\t&uuid_dcerpc_$x->{NAME}, ver_dcerpc_$x->{NAME},");
866             $self->pidl_code("\t$x->{NAME}_dissectors, hf_$x->{NAME}_opnum);");
867             $self->deindent;
868             $self->pidl_code("}");
869                 $self->pidl_fn_end("proto_reg_handoff_dcerpc_$x->{NAME}");
870
871                 $self->{hf_used}->{"hf_$x->{NAME}_opnum"} = 1;
872         }
873 }
874
875 sub ProcessInclude
876 {
877         my $self = shift;
878         my @includes = @_;
879         foreach (@includes) {
880                 $self->pidl_hdr("#include \"$_\"");
881         }
882         $self->pidl_hdr("");
883 }
884
885 sub ProcessImport
886 {
887         my $self = shift;
888         my @imports = @_;
889         foreach (@imports) {
890                 next if($_ eq "security");
891                 s/^\"//;
892                 s/\.idl"?$//;
893                 $self->pidl_hdr("#include \"packet-dcerpc-$_\.h\"");
894         }
895         $self->pidl_hdr("");
896 }
897
898 sub ProcessInterface($$)
899 {
900         my ($self, $x) = @_;
901
902         push(@{$self->{conformance}->{strip_prefixes}}, $x->{NAME});
903
904         my $define = "__PACKET_DCERPC_" . uc($_->{NAME}) . "_H";
905         $self->pidl_hdr("#ifndef $define");
906         $self->pidl_hdr("#define $define");
907         $self->pidl_hdr("");
908
909         $self->pidl_def("static gint proto_dcerpc_$x->{NAME} = -1;");
910         $self->register_ett("ett_dcerpc_$x->{NAME}");
911         $self->register_hf_field("hf_$x->{NAME}_opnum", "Operation", "$x->{NAME}.opnum", "FT_UINT16", "BASE_DEC", "NULL", 0, "");
912
913         if (defined($x->{UUID})) {
914                 my $if_uuid = $x->{UUID};
915
916             $self->pidl_def("/* Version information */\n\n");
917             
918             $self->pidl_def("static e_uuid_t uuid_dcerpc_$x->{NAME} = {");
919             $self->pidl_def("\t0x" . substr($if_uuid, 1, 8) 
920                 . ", 0x" . substr($if_uuid, 10, 4)
921             . ", 0x" . substr($if_uuid, 15, 4) . ",");
922             $self->pidl_def("\t{ 0x" . substr($if_uuid, 20, 2) 
923                 . ", 0x" . substr($if_uuid, 22, 2)
924             . ", 0x" . substr($if_uuid, 25, 2)
925             . ", 0x" . substr($if_uuid, 27, 2)
926             . ", 0x" . substr($if_uuid, 29, 2)
927             . ", 0x" . substr($if_uuid, 31, 2)
928             . ", 0x" . substr($if_uuid, 33, 2)
929             . ", 0x" . substr($if_uuid, 35, 2) . " }");
930             $self->pidl_def("};");
931         
932             my $maj = 0x0000FFFF & $x->{VERSION};
933             $maj =~ s/\.(.*)$//g;
934             $self->pidl_def("static guint16 ver_dcerpc_$x->{NAME} = $maj;");
935             $self->pidl_def("");
936         }
937
938         $return_types{$x->{NAME}} = {};
939
940         $self->Interface($x);
941         $self->pidl_code("\n".DumpFunctionTable($x));
942
943         foreach (sort(keys %{$return_types{$x->{NAME}}})) {
944                 my ($type, $desc) = @{$return_types{$x->{NAME}}->{$_}};
945                 my $dt = $self->find_type($type);
946                 $dt or die("Unable to find information about return type `$type'");
947                 $self->register_hf_field("hf_$x->{NAME}_$_", $desc, "$x->{NAME}.$_", $dt->{FT_TYPE}, "BASE_HEX", $dt->{VALSSTRING}, 0, "");
948                 $self->{hf_used}->{"hf_$x->{NAME}_$_"} = 1;
949         }
950
951         $self->RegisterInterface($x);
952         $self->RegisterInterfaceHandoff($x);
953
954         $self->pidl_hdr("#endif /* $define */");
955 }
956
957 sub find_type($$)
958 {
959         my ($self, $n) = @_;
960
961         return $self->{conformance}->{types}->{$n};
962 }
963
964 sub register_type($$$$$$$$)
965 {
966         my ($self, $type,$call,$ft,$base,$mask,$vals,$length) = @_;
967
968         return if (defined($self->{conformance}->{types}->{$type}));
969
970         $self->{conformance}->{types}->{$type} = {
971                 NAME => $type,
972                 DISSECTOR_NAME => $call,
973                 FT_TYPE => $ft,
974                 BASE_TYPE => $base,
975                 MASK => $mask,
976                 VALSSTRING => $vals,
977                 ALIGNMENT => $length
978         };
979 }
980
981 # Loads the default types
982 sub Initialize($$)
983 {
984         my ($self, $cnf_file) = @_;
985
986         $self->{conformance} = {
987                 imports => {},
988                 header_fields=> {} 
989         };
990
991         ReadConformance($cnf_file, $self->{conformance}) or print STDERR "warning: No conformance file `$cnf_file'\n";
992         
993         foreach my $bytes (qw(1 2 4 8)) {
994                 my $bits = $bytes * 8;
995                 $self->register_type("uint$bits", "offset = PIDL_dissect_uint$bits(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);", "FT_UINT$bits", "BASE_DEC", 0, "NULL", $bytes);
996                 $self->register_type("int$bits", "offset = PIDL_dissect_uint$bits(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);", "FT_INT$bits", "BASE_DEC", 0, "NULL", $bytes);
997         }
998                 
999         $self->register_type("uint3264", "offset = dissect_ndr_uint3264(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);", "FT_UINT32", "BASE_DEC", 0, "NULL", 8);
1000         $self->register_type("hyper", "offset = dissect_ndr_uint64(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);", "FT_UINT64", "BASE_DEC", 0, "NULL", 8);
1001         $self->register_type("udlong", "offset = dissect_ndr_duint32(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);", "FT_UINT64", "BASE_DEC", 0, "NULL", 4);
1002         $self->register_type("bool8", "offset = PIDL_dissect_uint8(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);","FT_INT8", "BASE_DEC", 0, "NULL", 1);
1003         $self->register_type("char", "offset = PIDL_dissect_uint8(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);","FT_INT8", "BASE_DEC", 0, "NULL", 1);
1004         $self->register_type("long", "offset = PIDL_dissect_uint32(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);","FT_INT32", "BASE_DEC", 0, "NULL", 4);
1005         $self->register_type("dlong", "offset = dissect_ndr_duint32(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);","FT_INT64", "BASE_DEC", 0, "NULL", 8);
1006         $self->register_type("GUID", "offset = dissect_ndr_uuid_t(tvb, offset, pinfo, tree, drep, \@HF\@, NULL);","FT_GUID", "BASE_NONE", 0, "NULL", 4);
1007         $self->register_type("policy_handle", "offset = PIDL_dissect_policy_hnd(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);","FT_BYTES", "BASE_NONE", 0, "NULL", 4);
1008         $self->register_type("NTTIME", "offset = dissect_ndr_nt_NTTIME(tvb, offset, pinfo, tree, drep, \@HF\@);","FT_ABSOLUTE_TIME", "ABSOLUTE_TIME_LOCAL", 0, "NULL", 4);
1009         $self->register_type("NTTIME_hyper", "offset = dissect_ndr_nt_NTTIME(tvb, offset, pinfo, tree, drep, \@HF\@);","FT_ABSOLUTE_TIME", "ABSOLUTE_TIME_LOCAL", 0, "NULL", 4);
1010         $self->register_type("time_t", "offset = dissect_ndr_time_t(tvb, offset, pinfo,tree, drep, \@HF\@, NULL);","FT_ABSOLUTE_TIME", "ABSOLUTE_TIME_LOCAL", 0, "NULL", 4);
1011         $self->register_type("NTTIME_1sec", "offset = dissect_ndr_nt_NTTIME(tvb, offset, pinfo, tree, drep, \@HF\@);", "FT_ABSOLUTE_TIME", "ABSOLUTE_TIME_LOCAL", 0, "NULL", 4);
1012         $self->register_type("dom_sid28", "{
1013                 dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
1014                 di->hf_index = \@HF\@;
1015
1016                 offset = dissect_ndr_nt_SID28(tvb, offset, pinfo, tree, drep);
1017         }", "FT_STRING", "BASE_NONE", 0, "NULL", 4);
1018         $self->register_type("SID", "{
1019                 dcerpc_info *di = (dcerpc_info *)pinfo->private_data;
1020
1021                 di->hf_index = \@HF\@;
1022
1023                 offset = dissect_ndr_nt_SID_with_options(tvb, offset, pinfo, tree, drep, param);
1024         }", "FT_STRING", "BASE_NONE", 0, "NULL", 4);
1025         $self->register_type("WERROR", 
1026                 "offset = PIDL_dissect_uint32(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);","FT_UINT32", "BASE_DEC", 0, "VALS(WERR_errors)", 4);
1027         $self->register_type("NTSTATUS", 
1028                 "offset = PIDL_dissect_uint32(tvb, offset, pinfo, tree, drep, \@HF\@, \@PARAM\@);","FT_UINT32", "BASE_DEC", 0, "VALS(NT_errors)", 4);
1029         $self->register_type("ipv6address", "proto_tree_add_item(tree, \@HF\@, tvb, offset, 16, ENC_NA); offset += 16;", "FT_IPv6", "BASE_NONE", 0, "NULL", 16);
1030         $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);
1031
1032 }
1033
1034 #####################################################################
1035 # Generate Wireshark parser and header code
1036 sub Parse($$$$$)
1037 {
1038         my($self,$ndr,$idl_file,$h_filename,$cnf_file) = @_;
1039
1040         $self->Initialize($cnf_file);
1041
1042         return (undef, undef) if defined($self->{conformance}->{noemit_dissector});
1043
1044         my $notice = 
1045 "/* DO NOT EDIT
1046         This filter was automatically generated
1047         from $idl_file and $cnf_file.
1048
1049         Pidl is a perl based IDL compiler for DCE/RPC idl files.
1050         It is maintained by the Samba team, not the Wireshark team.
1051         Instructions on how to download and install Pidl can be
1052         found at http://wiki.wireshark.org/Pidl
1053 */
1054
1055 ";
1056
1057         $self->pidl_hdr($notice);
1058
1059         $self->{res}->{headers} = "\n";
1060         $self->{res}->{headers} .= "#include \"config.h\"\n";
1061
1062         $self->{res}->{headers} .= "#ifdef _MSC_VER\n";
1063         $self->{res}->{headers} .= "#pragma warning(disable:4005)\n";
1064         $self->{res}->{headers} .= "#pragma warning(disable:4013)\n";
1065         $self->{res}->{headers} .= "#pragma warning(disable:4018)\n";
1066         $self->{res}->{headers} .= "#pragma warning(disable:4101)\n";
1067         $self->{res}->{headers} .= "#endif\n\n";
1068
1069         $self->{res}->{headers} .= "#include <glib.h>\n";
1070         $self->{res}->{headers} .= "#include <string.h>\n";
1071         $self->{res}->{headers} .= "#include <epan/packet.h>\n\n";
1072
1073         $self->{res}->{headers} .= "#include \"packet-dcerpc.h\"\n";
1074         $self->{res}->{headers} .= "#include \"packet-dcerpc-nt.h\"\n";
1075         $self->{res}->{headers} .= "#include \"packet-windows-common.h\"\n";
1076
1077         my $h_basename = basename($h_filename);
1078
1079         $self->{res}->{headers} .= "#include \"$h_basename\"\n";
1080         $self->pidl_code("");
1081
1082         if (defined($self->{conformance}->{ett})) {
1083                 register_ett($self,$_) foreach(@{$self->{conformance}->{ett}})
1084         }
1085
1086         # Wireshark protocol registration
1087
1088         foreach (@$ndr) {
1089                 $self->ProcessInterface($_) if ($_->{TYPE} eq "INTERFACE");
1090                 $self->ProcessImport(@{$_->{PATHS}}) if ($_->{TYPE} eq "IMPORT");
1091                 $self->ProcessInclude(@{$_->{PATHS}}) if ($_->{TYPE} eq "INCLUDE");
1092         }
1093
1094         $self->{res}->{ett} = DumpEttDeclaration($self->{ett});
1095         $self->{res}->{hf} = $self->DumpHfDeclaration();
1096
1097         my $parser = $notice;
1098         $parser.= $self->{res}->{headers};
1099         $parser.=$self->{res}->{ett};
1100         $parser.=$self->{res}->{hf};
1101         $parser.=$self->{res}->{def};
1102         if (exists ($self->{conformance}->{override})) {
1103                 $parser.=$self->{conformance}->{override};
1104         }
1105         $parser.=$self->{res}->{code};
1106
1107         my $header = "/* autogenerated by pidl */\n\n";
1108         $header.=$self->{res}->{hdr};
1109
1110         $self->CheckUsed($self->{conformance});
1111     
1112         return ($parser,$header);
1113 }
1114
1115 ###############################################################################
1116 # ETT
1117 ###############################################################################
1118
1119 sub register_ett($$)
1120 {
1121         my ($self, $name) = @_;
1122
1123         push (@{$self->{ett}}, $name);  
1124 }
1125
1126 sub DumpEttList
1127 {
1128         my ($ett) = @_;
1129         my $res = "\tstatic gint *ett[] = {\n";
1130         foreach (@$ett) {
1131                 $res .= "\t\t&$_,\n";
1132         }
1133
1134         return "$res\t};\n";
1135 }
1136
1137 sub DumpEttDeclaration
1138 {
1139         my ($ett) = @_;
1140         my $res = "\n/* Ett declarations */\n";
1141         foreach (@$ett) {
1142                 $res .= "static gint $_ = -1;\n";
1143         }
1144
1145         return "$res\n";
1146 }
1147
1148 ###############################################################################
1149 # HF
1150 ###############################################################################
1151
1152 sub register_hf_field($$$$$$$$$) 
1153 {
1154         my ($self,$index,$name,$filter_name,$ft_type,$base_type,$valsstring,$mask,$blurb) = @_;
1155
1156         if (defined ($self->{conformance}->{hf_renames}->{$index})) {
1157                 $self->{conformance}->{hf_renames}->{$index}->{USED} = 1;
1158                 return $self->{conformance}->{hf_renames}->{$index}->{NEWNAME};
1159         }
1160
1161         $self->{conformance}->{header_fields}->{$index} = {
1162                 INDEX => $index,
1163                 NAME => $name,
1164                 FILTER => $filter_name,
1165                 FT_TYPE => $ft_type,
1166                 BASE_TYPE => $base_type,
1167                 VALSSTRING => $valsstring,
1168                 MASK => $mask,
1169                 BLURB => $blurb
1170         };
1171
1172         if ((not defined($blurb) or $blurb eq "") and 
1173                         defined($self->{conformance}->{fielddescription}->{$index})) {
1174                 $self->{conformance}->{header_fields}->{$index}->{BLURB} = 
1175                         $self->{conformance}->{fielddescription}->{$index}->{DESCRIPTION};
1176                 $self->{conformance}->{fielddescription}->{$index}->{USED} = 1;
1177         }
1178
1179         return $index;
1180 }
1181
1182 sub change_hf_field_type($$$$)
1183 {
1184         my ($self,$index,$ft_type,$base_type) = @_;
1185         if (defined ($self->{conformance}->{hf_renames}->{$index})) {
1186                 print "Field $index has been renamed to ".$self->{conformance}->{hf_renames}->{$index}->{NEWNAME}." you can't change it's type";
1187                 return 0;
1188         }
1189
1190         if (!defined ($self->{conformance}->{header_fields}->{$index})) {
1191                 print "Field $index doesn't exists";
1192                 return 0;
1193         }
1194         $self->{conformance}->{header_fields}->{$index}->{FT_TYPE} = $ft_type;
1195         $self->{conformance}->{header_fields}->{$index}->{BASE_TYPE} = $base_type;
1196         return 1;
1197 }
1198
1199 sub DumpHfDeclaration($)
1200 {
1201         my ($self) = @_;
1202         my $res = "";
1203
1204         $res = "\n/* Header field declarations */\n";
1205
1206         foreach (sort(keys %{$self->{conformance}->{header_fields}}))
1207         {
1208                 $res .= "static gint $_ = -1;\n";
1209         }
1210
1211         return "$res\n";
1212 }
1213
1214 sub make_str_or_null($)
1215 {
1216       my $str = shift;
1217       if (substr($str, 0, 1) eq "\"") {
1218               $str = substr($str, 1, length($str)-2);
1219       }
1220       $str =~ s/^\s*//;
1221       $str =~ s/\s*$//;
1222       if ($str eq "") {
1223               return "NULL";
1224       }
1225       return make_str($str);
1226 }
1227
1228 sub DumpHfList($)
1229 {
1230         my ($self) = @_;
1231         my $res = "\tstatic hf_register_info hf[] = {\n";
1232
1233         foreach (sort {$a->{INDEX} cmp $b->{INDEX}} values %{$self->{conformance}->{header_fields}})
1234         {
1235                 $res .= "\t{ &$_->{INDEX},
1236           { ".make_str($_->{NAME}).", ".make_str($_->{FILTER}).", $_->{FT_TYPE}, $_->{BASE_TYPE}, $_->{VALSSTRING}, $_->{MASK}, ".make_str_or_null($_->{BLURB}).", HFILL }},
1237 ";
1238         }
1239
1240         return $res."\t};\n";
1241 }
1242
1243
1244 ###############################################################################
1245 # Function table
1246 ###############################################################################
1247
1248 sub DumpFunctionTable($)
1249 {
1250         my $if = shift;
1251
1252         my $res = "static dcerpc_sub_dissector $if->{NAME}\_dissectors[] = {\n";
1253         foreach (@{$if->{FUNCTIONS}}) {
1254                 my $fn_name = $_->{NAME};
1255                 $fn_name =~ s/^$if->{NAME}_//;
1256                 $res.= "\t{ $_->{OPNUM}, \"$fn_name\",\n";
1257                 $res.= "\t   $if->{NAME}_dissect_${fn_name}_request, $if->{NAME}_dissect_${fn_name}_response},\n";
1258         }
1259
1260         $res .= "\t{ 0, NULL, NULL, NULL }\n";
1261
1262         return "$res};\n";
1263 }
1264
1265 sub CheckUsed($$)
1266 {
1267         my ($self, $conformance) = @_;
1268         foreach (values %{$conformance->{header_fields}}) {
1269                 if (not defined($self->{hf_used}->{$_->{INDEX}})) {
1270                         warning($_->{POS}, "hf field `$_->{INDEX}' not used");
1271                 }
1272         }
1273
1274         foreach (values %{$conformance->{hf_renames}}) {
1275                 if (not $_->{USED}) {
1276                         warning($_->{POS}, "hf field `$_->{OLDNAME}' not used");
1277                 }
1278         }
1279
1280         foreach (values %{$conformance->{dissectorparams}}) {
1281                 if (not $_->{USED}) {
1282                         warning($_->{POS}, "dissector param never used");
1283                 }
1284         }
1285
1286         foreach (values %{$conformance->{imports}}) {
1287                 if (not $_->{USED}) {
1288                         warning($_->{POS}, "import never used");
1289                 }
1290         }
1291
1292         foreach (values %{$conformance->{types}}) {
1293                 if (not $_->{USED} and defined($_->{POS})) {
1294                         warning($_->{POS}, "type never used");
1295                 }
1296         }
1297
1298         foreach (values %{$conformance->{fielddescription}}) {
1299                 if (not $_->{USED}) {
1300                         warning($_->{POS}, "description never used");
1301                 }
1302         }
1303
1304         foreach (values %{$conformance->{tfs}}) {
1305                 if (not $_->{USED}) {
1306                         warning($_->{POS}, "True/False description never used");
1307                 }
1308         }
1309 }
1310
1311 1;