source/pidl/lib/Parse/Pidl/Samba4/NDR/Parser.pm

   1 ###################################################
   2 # Samba4 NDR parser generator for IDL structures
   3 # Copyright tridge@samba.org 2000-2003
   4 # Copyright tpot@samba.org 2001
   5 # Copyright jelmer@samba.org 2004-2006
   6 # released under the GNU GPL
   7
   8 package Parse::Pidl::Samba4::NDR::Parser;
   9
  10 require Exporter;
  11 @ISA = qw(Exporter);
  12 @EXPORT_OK = qw(check_null_pointer NeededFunction NeededElement NeededType $res NeededInterface TypeFunctionName ParseElementPrint);
  13
  14 use strict;
  15 use Parse::Pidl::Typelist qw(hasType getType mapTypeName typeHasBody);
  16 use Parse::Pidl::Util qw(has_property ParseExpr ParseExprExt print_uuid);
  17 use Parse::Pidl::CUtil qw(get_pointer_to get_value_of);
  18 use Parse::Pidl::NDR qw(GetPrevLevel GetNextLevel ContainsDeferred is_charset_array);
  19 use Parse::Pidl::Samba4 qw(is_intree choose_header);
  20 use Parse::Pidl::Samba4::Header qw(GenerateFunctionInEnv GenerateFunctionOutEnv EnvSubstituteValue GenerateStructEnv);
  21 use Parse::Pidl qw(warning);
  22
  23 use vars qw($VERSION);
  24 $VERSION = '0.01';
  25
  26 # list of known types
  27 my %typefamily;
  28
  29 sub new($$) {
  30         my ($class) = @_;
  31         my $self = { res => "", res_hdr => "", deferred => [], tabs => "", defer_tabs => "" };
  32         bless($self, $class);
  33 }
  34
  35 sub get_typefamily($)
  36 {
  37         my $n = shift;
  38         return $typefamily{$n};
  39 }
  40
  41 sub append_prefix($$)
  42 {
  43         my ($e, $var_name) = @_;
  44         my $pointers = 0;
  45
  46         foreach my $l (@{$e->{LEVELS}}) {
  47                 if ($l->{TYPE} eq "POINTER") {
  48                         $pointers++;
  49                 } elsif ($l->{TYPE} eq "ARRAY") {
  50                         if (($pointers == 0) and
  51                             (not $l->{IS_FIXED}) and
  52                             (not $l->{IS_INLINE})) {
  53                                 return get_value_of($var_name);
  54                         }
  55                 } elsif ($l->{TYPE} eq "DATA") {
  56                         if (Parse::Pidl::Typelist::scalar_is_reference($l->{DATA_TYPE})) {
  57                                 return get_value_of($var_name) unless ($pointers);
  58                         }
  59                 }
  60         }
  61
  62         return $var_name;
  63 }
  64
  65 sub has_fast_array($$)
  66 {
  67         my ($e,$l) = @_;
  68
  69         return 0 if ($l->{TYPE} ne "ARRAY");
  70
  71         my $nl = GetNextLevel($e,$l);
  72         return 0 unless ($nl->{TYPE} eq "DATA");
  73         return 0 unless (hasType($nl->{DATA_TYPE}));
  74
  75         my $t = getType($nl->{DATA_TYPE});
  76
  77         # Only uint8 and string have fast array functions at the moment
  78         return ($t->{NAME} eq "uint8") or ($t->{NAME} eq "string");
  79 }
  80
  81
  82 ####################################
  83 # pidl() is our basic output routine
  84 sub pidl($$)
  85 {
  86         my ($self, $d) = @_;
  87         if ($d) {
  88                 $self->{res} .= $self->{tabs};
  89                 $self->{res} .= $d;
  90         }
  91         $self->{res} .="\n";
  92 }
  93
  94 sub pidl_hdr($$) { my ($self, $d) = @_; $self->{res_hdr} .= "$d\n"; }
  95
  96 ####################################
  97 # defer() is like pidl(), but adds to
  98 # a deferred buffer which is then added to the
  99 # output buffer at the end of the structure/union/function
 100 # This is needed to cope with code that must be pushed back
 101 # to the end of a block of elements
 102 sub defer_indent($) { my ($self) = @_; $self->{defer_tabs}.="\t"; }
 103 sub defer_deindent($) { my ($self) = @_; $self->{defer_tabs}=substr($self->{defer_tabs}, 0, -1); }
 104
 105 sub defer($$)
 106 {
 107         my ($self, $d) = @_;
 108         if ($d) {
 109                 push(@{$self->{deferred}}, $self->{defer_tabs}.$d);
 110         }
 111 }
 112
 113 ########################################
 114 # add the deferred content to the current
 115 # output
 116 sub add_deferred($)
 117 {
 118         my ($self) = @_;
 119         $self->pidl($_) foreach (@{$self->{deferred}});
 120         $self->{deferred} = [];
 121         $self->{defer_tabs} = "";
 122 }
 123
 124 sub indent($)
 125 {
 126         my ($self) = @_;
 127         $self->{tabs} .= "\t";
 128 }
 129
 130 sub deindent($)
 131 {
 132         my ($self) = @_;
 133         $self->{tabs} = substr($self->{tabs}, 0, -1);
 134 }
 135
 136 #####################################################################
 137 # declare a function public or static, depending on its attributes
 138 sub fn_declare($$$$)
 139 {
 140         my ($self,$type,$fn,$decl) = @_;
 141
 142         if (has_property($fn, "no$type")) {
 143                 $self->pidl_hdr("$decl;");
 144                 return 0;
 145         }
 146
 147         if (has_property($fn, "public")) {
 148                 $self->pidl_hdr("$decl;");
 149                 $self->pidl("_PUBLIC_ $decl");
 150         } else {
 151                 $self->pidl("static $decl");
 152         }
 153
 154         return 1;
 155 }
 156
 157 ###################################################################
 158 # setup any special flags for an element or structure
 159 sub start_flags($$)
 160 {
 161         my ($self, $e) = @_;
 162         my $flags = has_property($e, "flag");
 163         if (defined $flags) {
 164                 $self->pidl("{");
 165                 $self->indent;
 166                 $self->pidl("uint32_t _flags_save_$e->{TYPE} = ndr->flags;");
 167                 $self->pidl("ndr_set_flags(&ndr->flags, $flags);");
 168         }
 169 }
 170
 171 ###################################################################
 172 # end any special flags for an element or structure
 173 sub end_flags($$)
 174 {
 175         my ($self, $e) = @_;
 176         my $flags = has_property($e, "flag");
 177         if (defined $flags) {
 178                 $self->pidl("ndr->flags = _flags_save_$e->{TYPE};");
 179                 $self->deindent;
 180                 $self->pidl("}");
 181         }
 182 }
 183
 184 #####################################################################
 185 # parse the data of an array - push side
 186 sub ParseArrayPushHeader($$$$$$)
 187 {
 188         my ($self,$e,$l,$ndr,$var_name,$env) = @_;
 189
 190         my $size;
 191         my $length;
 192
 193         if ($l->{IS_ZERO_TERMINATED}) {
 194                 if (has_property($e, "charset")) {
 195                         $size = $length = "ndr_charset_length($var_name, CH_$e->{PROPERTIES}->{charset})";
 196                 } else {
 197                         $size = $length = "ndr_string_length($var_name, sizeof(*$var_name))";
 198                 }
 199         } else {
 200                 $size = ParseExpr($l->{SIZE_IS}, $env, $e);
 201                 $length = ParseExpr($l->{LENGTH_IS}, $env, $e);
 202         }
 203
 204         if ((!$l->{IS_SURROUNDING}) and $l->{IS_CONFORMANT}) {
 205                 $self->pidl("NDR_CHECK(ndr_push_uint32($ndr, NDR_SCALARS, $size));");
 206         }
 207
 208         if ($l->{IS_VARYING}) {
 209                 $self->pidl("NDR_CHECK(ndr_push_uint32($ndr, NDR_SCALARS, 0));");  # array offset
 210                 $self->pidl("NDR_CHECK(ndr_push_uint32($ndr, NDR_SCALARS, $length));");
 211         }
 212
 213         return $length;
 214 }
 215
 216 sub check_fully_dereferenced($$)
 217 {
 218         my ($element, $env) = @_;
 219
 220         return sub ($) {
 221                 my $origvar = shift;
 222                 my $check = 0;
 223
 224                 # Figure out the number of pointers in $ptr
 225                 my $expandedvar = $origvar;
 226                 $expandedvar =~ s/^(\**)//;
 227                 my $ptr = $1;
 228
 229                 my $var = undef;
 230                 foreach (keys %$env) {
 231                         if ($env->{$_} eq $expandedvar) {
 232                                 $var = $_;
 233                                 last;
 234                         }
 235                 }
 236
 237                 return($origvar) unless (defined($var));
 238                 my $e;
 239                 foreach (@{$element->{PARENT}->{ELEMENTS}}) {
 240                         if ($_->{NAME} eq $var) {
 241                                 $e = $_;
 242                                 last;
 243                         }
 244                 }
 245
 246                 $e or die("Environment doesn't match siblings");
 247
 248                 # See if pointer at pointer level $level
 249                 # needs to be checked.
 250                 my $nump = 0;
 251                 foreach (@{$e->{LEVELS}}) {
 252                         if ($_->{TYPE} eq "POINTER") {
 253                                 $nump = $_->{POINTER_INDEX}+1;
 254                         }
 255                 }
 256                 warning($element->{ORIGINAL}, "Got pointer for `$e->{NAME}', expected fully derefenced variable") if ($nump > length($ptr));
 257                 return ($origvar);
 258         }
 259 }
 260
 261 sub check_null_pointer($$$$)
 262 {
 263         my ($element, $env, $print_fn, $return) = @_;
 264
 265         return sub ($) {
 266                 my $expandedvar = shift;
 267                 my $check = 0;
 268
 269                 # Figure out the number of pointers in $ptr
 270                 $expandedvar =~ s/^(\**)//;
 271                 my $ptr = $1;
 272
 273                 my $var = undef;
 274                 foreach (keys %$env) {
 275                         if ($env->{$_} eq $expandedvar) {
 276                                 $var = $_;
 277                                 last;
 278                         }
 279                 }
 280
 281                 if (defined($var)) {
 282                         my $e;
 283                         # lookup ptr in $e
 284                         foreach (@{$element->{PARENT}->{ELEMENTS}}) {
 285                                 if ($_->{NAME} eq $var) {
 286                                         $e = $_;
 287                                         last;
 288                                 }
 289                         }
 290
 291                         $e or die("Environment doesn't match siblings");
 292
 293                         # See if pointer at pointer level $level
 294                         # needs to be checked.
 295                         foreach my $l (@{$e->{LEVELS}}) {
 296                                 if ($l->{TYPE} eq "POINTER" and
 297                                         $l->{POINTER_INDEX} == length($ptr)) {
 298                                         # No need to check ref pointers
 299                                         $check = ($l->{POINTER_TYPE} ne "ref");
 300                                         last;
 301                                 }
 302
 303                                 if ($l->{TYPE} eq "DATA") {
 304                                         warning($element, "too much dereferences for `$var'");
 305                                 }
 306                         }
 307                 } else {
 308                         warning($element, "unknown dereferenced expression `$expandedvar'");
 309                         $check = 1;
 310                 }
 311
 312                 $print_fn->("if ($ptr$expandedvar == NULL) $return") if $check;
 313         }
 314 }
 315
 316 #####################################################################
 317 # parse an array - pull side
 318 sub ParseArrayPullHeader($$$$$$)
 319 {
 320         my ($self,$e,$l,$ndr,$var_name,$env) = @_;
 321
 322         my $length;
 323         my $size;
 324
 325         if ($l->{IS_CONFORMANT}) {
 326                 $length = $size = "ndr_get_array_size($ndr, " . get_pointer_to($var_name) . ")";
 327         } elsif ($l->{IS_ZERO_TERMINATED}) { # Noheader arrays
 328                 $length = $size = "ndr_get_string_size($ndr, sizeof(*$var_name))";
 329         } else {
 330                 $length = $size = ParseExprExt($l->{SIZE_IS}, $env, $e->{ORIGINAL},
 331                         check_null_pointer($e, $env, sub { $self->pidl(shift); },
 332                                            "return ndr_pull_error(ndr, NDR_ERR_INVALID_POINTER, \"NULL Pointer for size_is()\");"),
 333                         check_fully_dereferenced($e, $env));
 334         }
 335
 336         if ((!$l->{IS_SURROUNDING}) and $l->{IS_CONFORMANT}) {
 337                 $self->pidl("NDR_CHECK(ndr_pull_array_size(ndr, " . get_pointer_to($var_name) . "));");
 338         }
 339
 340         if ($l->{IS_VARYING}) {
 341                 $self->pidl("NDR_CHECK(ndr_pull_array_length($ndr, " . get_pointer_to($var_name) . "));");
 342                 $length = "ndr_get_array_length($ndr, " . get_pointer_to($var_name) .")";
 343         }
 344
 345         if ($length ne $size) {
 346                 $self->pidl("if ($length > $size) {");
 347                 $self->indent;
 348                 $self->pidl("return ndr_pull_error($ndr, NDR_ERR_ARRAY_SIZE, \"Bad array size %u should exceed array length %u\", $size, $length);");
 349                 $self->deindent;
 350                 $self->pidl("}");
 351         }
 352
 353         if ($l->{IS_CONFORMANT} and not $l->{IS_ZERO_TERMINATED}) {
 354                 $self->defer("if ($var_name) {");
 355                 $self->defer_indent;
 356                 my $size = ParseExprExt($l->{SIZE_IS}, $env, $e->{ORIGINAL},
 357                         check_null_pointer($e, $env, sub { $self->defer(shift); },
 358                                            "return ndr_pull_error(ndr, NDR_ERR_INVALID_POINTER, \"NULL Pointer for size_is()\");"),
 359                         check_fully_dereferenced($e, $env));
 360                 $self->defer("NDR_CHECK(ndr_check_array_size(ndr, (void*)" . get_pointer_to($var_name) . ", $size));");
 361                 $self->defer_deindent;
 362                 $self->defer("}");
 363         }
 364
 365         if ($l->{IS_VARYING} and not $l->{IS_ZERO_TERMINATED}) {
 366                 $self->defer("if ($var_name) {");
 367                 $self->defer_indent;
 368                 my $length = ParseExprExt($l->{LENGTH_IS}, $env, $e->{ORIGINAL},
 369                         check_null_pointer($e, $env, sub { $self->defer(shift); },
 370                                            "return ndr_pull_error(ndr, NDR_ERR_INVALID_POINTER, \"NULL Pointer for length_is()\");"),
 371                         check_fully_dereferenced($e, $env));
 372                 $self->defer("NDR_CHECK(ndr_check_array_length(ndr, (void*)" . get_pointer_to($var_name) . ", $length));");
 373                 $self->defer_deindent;
 374                 $self->defer("}");
 375         }
 376
 377         if (not $l->{IS_FIXED} and not is_charset_array($e, $l)) {
 378                 $self->AllocateArrayLevel($e,$l,$ndr,$var_name,$size);
 379         }
 380
 381         return $length;
 382 }
 383
 384 sub compression_alg($$)
 385 {
 386         my ($e, $l) = @_;
 387         my ($alg, $clen, $dlen) = split(/ /, $l->{COMPRESSION});
 388
 389         return $alg;
 390 }
 391
 392 sub compression_clen($$$)
 393 {
 394         my ($e, $l, $env) = @_;
 395         my ($alg, $clen, $dlen) = split(/ /, $l->{COMPRESSION});
 396
 397         return ParseExpr($clen, $env, $e->{ORIGINAL});
 398 }
 399
 400 sub compression_dlen($$$)
 401 {
 402         my ($e,$l,$env) = @_;
 403         my ($alg, $clen, $dlen) = split(/ /, $l->{COMPRESSION});
 404
 405         return ParseExpr($dlen, $env, $e->{ORIGINAL});
 406 }
 407
 408 sub ParseCompressionPushStart($$$$$)
 409 {
 410         my ($self,$e,$l,$ndr,$env) = @_;
 411         my $comndr = "$ndr\_compressed";
 412         my $alg = compression_alg($e, $l);
 413         my $dlen = compression_dlen($e, $l, $env);
 414
 415         $self->pidl("{");
 416         $self->indent;
 417         $self->pidl("struct ndr_push *$comndr;");
 418         $self->pidl("NDR_CHECK(ndr_push_compression_start($ndr, &$comndr, $alg, $dlen));");
 419
 420         return $comndr;
 421 }
 422
 423 sub ParseCompressionPushEnd($$$$$)
 424 {
 425         my ($self,$e,$l,$ndr,$env) = @_;
 426         my $comndr = "$ndr\_compressed";
 427         my $alg = compression_alg($e, $l);
 428         my $dlen = compression_dlen($e, $l, $env);
 429
 430         $self->pidl("NDR_CHECK(ndr_push_compression_end($ndr, $comndr, $alg, $dlen));");
 431         $self->deindent;
 432         $self->pidl("}");
 433 }
 434
 435 sub ParseCompressionPullStart($$$$$)
 436 {
 437         my ($self,$e,$l,$ndr,$env) = @_;
 438         my $comndr = "$ndr\_compressed";
 439         my $alg = compression_alg($e, $l);
 440         my $dlen = compression_dlen($e, $l, $env);
 441
 442         $self->pidl("{");
 443         $self->indent;
 444         $self->pidl("struct ndr_pull *$comndr;");
 445         $self->pidl("NDR_CHECK(ndr_pull_compression_start($ndr, &$comndr, $alg, $dlen));");
 446
 447         return $comndr;
 448 }
 449
 450 sub ParseCompressionPullEnd($$$$$)
 451 {
 452         my ($self,$e,$l,$ndr,$env) = @_;
 453         my $comndr = "$ndr\_compressed";
 454         my $alg = compression_alg($e, $l);
 455         my $dlen = compression_dlen($e, $l, $env);
 456
 457         $self->pidl("NDR_CHECK(ndr_pull_compression_end($ndr, $comndr, $alg, $dlen));");
 458         $self->deindent;
 459         $self->pidl("}");
 460 }
 461
 462 sub ParseSubcontextPushStart($$$$$)
 463 {
 464         my ($self,$e,$l,$ndr,$env) = @_;
 465         my $subndr = "_ndr_$e->{NAME}";
 466         my $subcontext_size = ParseExpr($l->{SUBCONTEXT_SIZE}, $env, $e->{ORIGINAL});
 467
 468         $self->pidl("{");
 469         $self->indent;
 470         $self->pidl("struct ndr_push *$subndr;");
 471         $self->pidl("NDR_CHECK(ndr_push_subcontext_start($ndr, &$subndr, $l->{HEADER_SIZE}, $subcontext_size));");
 472
 473         if (defined $l->{COMPRESSION}) {
 474                 $subndr = $self->ParseCompressionPushStart($e, $l, $subndr, $env);
 475         }
 476
 477         return $subndr;
 478 }
 479
 480 sub ParseSubcontextPushEnd($$$$$)
 481 {
 482         my ($self,$e,$l,$ndr,$env) = @_;
 483         my $subndr = "_ndr_$e->{NAME}";
 484         my $subcontext_size = ParseExpr($l->{SUBCONTEXT_SIZE}, $env, $e->{ORIGINAL});
 485
 486         if (defined $l->{COMPRESSION}) {
 487                 $self->ParseCompressionPushEnd($e, $l, $subndr, $env);
 488         }
 489
 490         $self->pidl("NDR_CHECK(ndr_push_subcontext_end($ndr, $subndr, $l->{HEADER_SIZE}, $subcontext_size));");
 491         $self->deindent;
 492         $self->pidl("}");
 493 }
 494
 495 sub ParseSubcontextPullStart($$$$$)
 496 {
 497         my ($self,$e,$l,$ndr,$env) = @_;
 498         my $subndr = "_ndr_$e->{NAME}";
 499         my $subcontext_size = ParseExpr($l->{SUBCONTEXT_SIZE}, $env, $e->{ORIGINAL});
 500
 501         $self->pidl("{");
 502         $self->indent;
 503         $self->pidl("struct ndr_pull *$subndr;");
 504         $self->pidl("NDR_CHECK(ndr_pull_subcontext_start($ndr, &$subndr, $l->{HEADER_SIZE}, $subcontext_size));");
 505
 506         if (defined $l->{COMPRESSION}) {
 507                 $subndr = $self->ParseCompressionPullStart($e, $l, $subndr, $env);
 508         }
 509
 510         return $subndr;
 511 }
 512
 513 sub ParseSubcontextPullEnd($$$$$)
 514 {
 515         my ($self,$e,$l,$ndr,$env) = @_;
 516         my $subndr = "_ndr_$e->{NAME}";
 517         my $subcontext_size = ParseExpr($l->{SUBCONTEXT_SIZE}, $env, $e->{ORIGINAL});
 518
 519         if (defined $l->{COMPRESSION}) {
 520                 $self->ParseCompressionPullEnd($e, $l, $subndr, $env);
 521         }
 522
 523         $self->pidl("NDR_CHECK(ndr_pull_subcontext_end($ndr, $subndr, $l->{HEADER_SIZE}, $subcontext_size));");
 524         $self->deindent;
 525         $self->pidl("}");
 526 }
 527
 528 sub ParseElementPushLevel
 529 {
 530         my ($self,$e,$l,$ndr,$var_name,$env,$primitives,$deferred) = @_;
 531
 532         my $ndr_flags = CalcNdrFlags($l, $primitives, $deferred);
 533
 534         if ($l->{TYPE} eq "ARRAY" and ($l->{IS_CONFORMANT} or $l->{IS_VARYING})) {
 535                 $var_name = get_pointer_to($var_name);
 536         }
 537
 538         if (defined($ndr_flags)) {
 539                 if ($l->{TYPE} eq "SUBCONTEXT") {
 540                         my $subndr = $self->ParseSubcontextPushStart($e, $l, $ndr, $env);
 541                         $self->ParseElementPushLevel($e, GetNextLevel($e, $l), $subndr, $var_name, $env, 1, 1);
 542                         $self->ParseSubcontextPushEnd($e, $l, $ndr, $env);
 543                 } elsif ($l->{TYPE} eq "POINTER") {
 544                         $self->ParsePtrPush($e, $l, $var_name);
 545                 } elsif ($l->{TYPE} eq "ARRAY") {
 546                         my $length = $self->ParseArrayPushHeader($e, $l, $ndr, $var_name, $env);
 547
 548                         my $nl = GetNextLevel($e, $l);
 549
 550                         # Allow speedups for arrays of scalar types
 551                         if (is_charset_array($e,$l)) {
 552                                 $self->pidl("NDR_CHECK(ndr_push_charset($ndr, $ndr_flags, $var_name, $length, sizeof(" . mapTypeName($nl->{DATA_TYPE}) . "), CH_$e->{PROPERTIES}->{charset}));");
 553                                 return;
 554                         } elsif (has_fast_array($e,$l)) {
 555                                 $self->pidl("NDR_CHECK(ndr_push_array_$nl->{DATA_TYPE}($ndr, $ndr_flags, $var_name, $length));");
 556                                 return;
 557                         }
 558                 } elsif ($l->{TYPE} eq "SWITCH") {
 559                         $self->ParseSwitchPush($e, $l, $ndr, $var_name, $env);
 560                 } elsif ($l->{TYPE} eq "DATA") {
 561                         $self->ParseDataPush($e, $l, $ndr, $var_name, $primitives, $deferred);
 562                 }
 563         }
 564
 565         if ($l->{TYPE} eq "POINTER" and $deferred) {
 566                 if ($l->{POINTER_TYPE} ne "ref") {
 567                         $self->pidl("if ($var_name) {");
 568                         $self->indent;
 569                         if ($l->{POINTER_TYPE} eq "relative") {
 570                                 $self->pidl("NDR_CHECK(ndr_push_relative_ptr2(ndr, $var_name));");
 571                         }
 572                 }
 573                 $var_name = get_value_of($var_name);
 574                 $self->ParseElementPushLevel($e, GetNextLevel($e, $l), $ndr, $var_name, $env, 1, 1);
 575
 576                 if ($l->{POINTER_TYPE} ne "ref") {
 577                         $self->deindent;
 578                         $self->pidl("}");
 579                 }
 580         } elsif ($l->{TYPE} eq "ARRAY" and not has_fast_array($e,$l) and
 581                 not is_charset_array($e, $l)) {
 582                 my $length = ParseExpr($l->{LENGTH_IS}, $env, $e->{ORIGINAL});
 583                 my $counter = "cntr_$e->{NAME}_$l->{LEVEL_INDEX}";
 584
 585                 $var_name = $var_name . "[$counter]";
 586
 587                 if (($primitives and not $l->{IS_DEFERRED}) or ($deferred and $l->{IS_DEFERRED})) {
 588                         $self->pidl("for ($counter = 0; $counter < $length; $counter++) {");
 589                         $self->indent;
 590                         $self->ParseElementPushLevel($e, GetNextLevel($e, $l), $ndr, $var_name, $env, 1, 0);
 591                         $self->deindent;
 592                         $self->pidl("}");
 593                 }
 594
 595                 if ($deferred and ContainsDeferred($e, $l)) {
 596                         $self->pidl("for ($counter = 0; $counter < $length; $counter++) {");
 597                         $self->indent;
 598                         $self->ParseElementPushLevel($e, GetNextLevel($e, $l), $ndr, $var_name, $env, 0, 1);
 599                         $self->deindent;
 600                         $self->pidl("}");
 601                 }
 602         } elsif ($l->{TYPE} eq "SWITCH") {
 603                 $self->ParseElementPushLevel($e, GetNextLevel($e, $l), $ndr, $var_name, $env, $primitives, $deferred);
 604         }
 605 }
 606
 607 #####################################################################
 608 # parse scalars in a structure element
 609 sub ParseElementPush($$$$$$)
 610 {
 611         my ($self,$e,$ndr,$env,$primitives,$deferred) = @_;
 612         my $subndr = undef;
 613
 614         my $var_name = $env->{$e->{NAME}};
 615
 616         return unless $primitives or ($deferred and ContainsDeferred($e, $e->{LEVELS}[0]));
 617
 618         # Representation type is different from transmit_as
 619         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
 620                 $self->pidl("{");
 621                 $self->indent;
 622                 my $transmit_name = "_transmit_$e->{NAME}";
 623                 $self->pidl(mapTypeName($e->{TYPE}) ." $transmit_name;");
 624                 $self->pidl("NDR_CHECK(ndr_$e->{REPRESENTATION_TYPE}_to_$e->{TYPE}($var_name, " . get_pointer_to($transmit_name) . "));");
 625                 $var_name = $transmit_name;
 626         }
 627
 628         $var_name = append_prefix($e, $var_name);
 629
 630         $self->start_flags($e);
 631
 632         if (defined(my $value = has_property($e, "value"))) {
 633                 $var_name = ParseExpr($value, $env, $e->{ORIGINAL});
 634         }
 635
 636         $self->ParseElementPushLevel($e, $e->{LEVELS}[0], $ndr, $var_name, $env, $primitives, $deferred);
 637
 638         $self->end_flags($e);
 639
 640         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
 641                 $self->deindent;
 642                 $self->pidl("}");
 643         }
 644 }
 645
 646 #####################################################################
 647 # parse a pointer in a struct element or function
 648 sub ParsePtrPush($$$$)
 649 {
 650         my ($self,$e,$l,$var_name) = @_;
 651
 652         if ($l->{POINTER_TYPE} eq "ref") {
 653                 $self->pidl("if ($var_name == NULL) {");
 654                 $self->indent;
 655                 $self->pidl("return ndr_push_error(ndr, NDR_ERR_INVALID_POINTER, \"NULL [ref] pointer\");");
 656                 $self->deindent;
 657                 $self->pidl("}");
 658                 if ($l->{LEVEL} eq "EMBEDDED") {
 659                         $self->pidl("NDR_CHECK(ndr_push_ref_ptr(ndr));");
 660                 }
 661         } elsif ($l->{POINTER_TYPE} eq "relative") {
 662                 $self->pidl("NDR_CHECK(ndr_push_relative_ptr1(ndr, $var_name));");
 663         } elsif ($l->{POINTER_TYPE} eq "unique") {
 664                 $self->pidl("NDR_CHECK(ndr_push_unique_ptr(ndr, $var_name));");
 665         } elsif ($l->{POINTER_TYPE} eq "full") {
 666                 $self->pidl("NDR_CHECK(ndr_push_full_ptr(ndr, $var_name));");
 667         } else {
 668                 die("Unhandled pointer type $l->{POINTER_TYPE}");
 669         }
 670 }
 671
 672 sub ParseDataPrint($$$$)
 673 {
 674         my ($self, $e, $l, $var_name) = @_;
 675
 676         if (not ref($l->{DATA_TYPE}) or
 677                 defined($l->{DATA_TYPE}->{NAME})) {
 678                 my $t;
 679                 if (ref($l->{DATA_TYPE})) {
 680                         $t = "$l->{DATA_TYPE}->{TYPE}_$l->{DATA_TYPE}->{NAME}";
 681                 } else {
 682                         $t = $l->{DATA_TYPE};
 683                 }
 684                 if (not Parse::Pidl::Typelist::is_scalar($t) or
 685                         Parse::Pidl::Typelist::scalar_is_reference($t)) {
 686                         $var_name = get_pointer_to($var_name);
 687                 }
 688                 $self->pidl("ndr_print_$t(ndr, \"$e->{NAME}\", $var_name);");
 689         } else {
 690                 $self->ParseTypePrint($l->{DATA_TYPE}, $var_name);
 691         }
 692 }
 693
 694 #####################################################################
 695 # print scalars in a structure element
 696 sub ParseElementPrint($$$$)
 697 {
 698         my($self, $e, $var_name, $env) = @_;
 699
 700         return if (has_property($e, "noprint"));
 701
 702         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
 703                 $self->pidl("ndr_print_$e->{REPRESENTATION_TYPE}(ndr, \"$e->{NAME}\", $var_name);");
 704                 return;
 705         }
 706
 707         $var_name = append_prefix($e, $var_name);
 708
 709         if (defined(my $value = has_property($e, "value"))) {
 710                 $var_name = "(ndr->flags & LIBNDR_PRINT_SET_VALUES)?" . ParseExpr($value,$env, $e->{ORIGINAL}) . ":$var_name";
 711         }
 712
 713         foreach my $l (@{$e->{LEVELS}}) {
 714                 if ($l->{TYPE} eq "POINTER") {
 715                         $self->pidl("ndr_print_ptr(ndr, \"$e->{NAME}\", $var_name);");
 716                         $self->pidl("ndr->depth++;");
 717                         if ($l->{POINTER_TYPE} ne "ref") {
 718                                 $self->pidl("if ($var_name) {");
 719                                 $self->indent;
 720                         }
 721                         $var_name = get_value_of($var_name);
 722                 } elsif ($l->{TYPE} eq "ARRAY") {
 723                         my $length;
 724
 725                         if ($l->{IS_CONFORMANT} or $l->{IS_VARYING}) {
 726                                 $var_name = get_pointer_to($var_name);
 727                         }
 728
 729                         if ($l->{IS_ZERO_TERMINATED}) {
 730                                 $length = "ndr_string_length($var_name, sizeof(*$var_name))";
 731                         } else {
 732                                 $length = ParseExprExt($l->{LENGTH_IS}, $env, $e->{ORIGINAL},
 733                                                         check_null_pointer($e, $env, sub { $self->pidl(shift); }, "return;"), check_fully_dereferenced($e, $env));
 734                         }
 735
 736                         if (is_charset_array($e,$l)) {
 737                                 $self->pidl("ndr_print_string(ndr, \"$e->{NAME}\", $var_name);");
 738                                 last;
 739                         } elsif (has_fast_array($e, $l)) {
 740                                 my $nl = GetNextLevel($e, $l);
 741                                 $self->pidl("ndr_print_array_$nl->{DATA_TYPE}(ndr, \"$e->{NAME}\", $var_name, $length);");
 742                                 last;
 743                         } else {
 744                                 my $counter = "cntr_$e->{NAME}_$l->{LEVEL_INDEX}";
 745
 746                                 $self->pidl("ndr->print(ndr, \"\%s: ARRAY(\%d)\", \"$e->{NAME}\", $length);");
 747                                 $self->pidl("ndr->depth++;");
 748                                 $self->pidl("for ($counter=0;$counter<$length;$counter++) {");
 749                                 $self->indent;
 750                                 $self->pidl("char *idx_$l->{LEVEL_INDEX}=NULL;");
 751                                 $self->pidl("asprintf(&idx_$l->{LEVEL_INDEX}, \"[\%d]\", $counter);");
 752                                 $self->pidl("if (idx_$l->{LEVEL_INDEX}) {");
 753                                 $self->indent;
 754
 755                                 $var_name = $var_name . "[$counter]";
 756                         }
 757                 } elsif ($l->{TYPE} eq "DATA") {
 758                         $self->ParseDataPrint($e, $l, $var_name);
 759                 } elsif ($l->{TYPE} eq "SWITCH") {
 760                         my $switch_var = ParseExprExt($l->{SWITCH_IS}, $env, $e->{ORIGINAL},
 761                                                 check_null_pointer($e, $env, sub { $self->pidl(shift); }, "return;"), check_fully_dereferenced($e, $env));
 762                         $self->pidl("ndr_print_set_switch_value(ndr, " . get_pointer_to($var_name) . ", $switch_var);");
 763                 }
 764         }
 765
 766         foreach my $l (reverse @{$e->{LEVELS}}) {
 767                 if ($l->{TYPE} eq "POINTER") {
 768                         if ($l->{POINTER_TYPE} ne "ref") {
 769                                 $self->deindent;
 770                                 $self->pidl("}");
 771                         }
 772                         $self->pidl("ndr->depth--;");
 773                 } elsif (($l->{TYPE} eq "ARRAY")
 774                         and not is_charset_array($e,$l)
 775                         and not has_fast_array($e,$l)) {
 776                         $self->pidl("free(idx_$l->{LEVEL_INDEX});");
 777                         $self->deindent;
 778                         $self->pidl("}");
 779                         $self->deindent;
 780                         $self->pidl("}");
 781                         $self->pidl("ndr->depth--;");
 782                 }
 783         }
 784 }
 785
 786 #####################################################################
 787 # parse scalars in a structure element - pull size
 788 sub ParseSwitchPull($$$$$$)
 789 {
 790         my($self,$e,$l,$ndr,$var_name,$env) = @_;
 791         my $switch_var = ParseExprExt($l->{SWITCH_IS}, $env, $e->{ORIGINAL},
 792                 check_null_pointer($e, $env, sub { $self->pidl(shift); },
 793                                    "return ndr_pull_error(ndr, NDR_ERR_INVALID_POINTER, \"NULL Pointer for switch_is()\");"),
 794                 check_fully_dereferenced($e, $env));
 795
 796         $var_name = get_pointer_to($var_name);
 797         $self->pidl("NDR_CHECK(ndr_pull_set_switch_value($ndr, $var_name, $switch_var));");
 798 }
 799
 800 #####################################################################
 801 # push switch element
 802 sub ParseSwitchPush($$$$$$)
 803 {
 804         my($self,$e,$l,$ndr,$var_name,$env) = @_;
 805         my $switch_var = ParseExprExt($l->{SWITCH_IS}, $env, $e->{ORIGINAL},
 806                 check_null_pointer($e, $env, sub { $self->pidl(shift); },
 807                                    "return ndr_push_error(ndr, NDR_ERR_INVALID_POINTER, \"NULL Pointer for switch_is()\");"),
 808                 check_fully_dereferenced($e, $env));
 809
 810         $var_name = get_pointer_to($var_name);
 811         $self->pidl("NDR_CHECK(ndr_push_set_switch_value($ndr, $var_name, $switch_var));");
 812 }
 813
 814 sub ParseDataPull($$$$$$$)
 815 {
 816         my ($self,$e,$l,$ndr,$var_name,$primitives,$deferred) = @_;
 817
 818         if (not ref($l->{DATA_TYPE}) or
 819                 defined($l->{DATA_TYPE}->{NAME})) {
 820
 821                 my $ndr_flags = CalcNdrFlags($l, $primitives, $deferred);
 822
 823                 if (Parse::Pidl::Typelist::scalar_is_reference($l->{DATA_TYPE})) {
 824                         $var_name = get_pointer_to($var_name);
 825                 }
 826
 827                 $var_name = get_pointer_to($var_name);
 828
 829                 $self->pidl("NDR_CHECK(".TypeFunctionName("ndr_pull", $l->{DATA_TYPE})."($ndr, $ndr_flags, $var_name));");
 830
 831                 if (my $range = has_property($e, "range")) {
 832                         $var_name = get_value_of($var_name);
 833                         my ($low, $high) = split(/ /, $range, 2);
 834                         $self->pidl("if ($var_name < $low || $var_name > $high) {");
 835                         $self->pidl("\treturn ndr_pull_error($ndr, NDR_ERR_RANGE, \"value out of range\");");
 836                         $self->pidl("}");
 837                 }
 838         } else {
 839                 $self->ParseTypePull($l->{DATA_TYPE}, $var_name, $primitives, $deferred);
 840         }
 841 }
 842
 843 sub ParseDataPush($$$$$$$)
 844 {
 845         my ($self,$e,$l,$ndr,$var_name,$primitives,$deferred) = @_;
 846
 847         if (not ref($l->{DATA_TYPE}) or defined($l->{DATA_TYPE}->{NAME})) {
 848                 my $t;
 849                 if (ref($l->{DATA_TYPE}) eq "HASH") {
 850                         $t = "$l->{DATA_TYPE}->{TYPE}_$l->{DATA_TYPE}->{NAME}";
 851                 } else {
 852                         $t = $l->{DATA_TYPE};
 853                 }
 854
 855                 # strings are passed by value rather than reference
 856                 if (not Parse::Pidl::Typelist::is_scalar($t) or
 857                         Parse::Pidl::Typelist::scalar_is_reference($t)) {
 858                         $var_name = get_pointer_to($var_name);
 859                 }
 860
 861                 my $ndr_flags = CalcNdrFlags($l, $primitives, $deferred);
 862                 $self->pidl("NDR_CHECK(ndr_push_$t($ndr, $ndr_flags, $var_name));");
 863         } else {
 864                 $self->ParseTypePush($l->{DATA_TYPE}, $var_name, $primitives, $deferred);
 865         }
 866 }
 867
 868 sub CalcNdrFlags($$$)
 869 {
 870         my ($l,$primitives,$deferred) = @_;
 871
 872         my $scalars = 0;
 873         my $buffers = 0;
 874
 875         # Add NDR_SCALARS if this one is deferred
 876         # and deferreds may be pushed
 877         $scalars = 1 if ($l->{IS_DEFERRED} and $deferred);
 878
 879         # Add NDR_SCALARS if this one is not deferred and
 880         # primitives may be pushed
 881         $scalars = 1 if (!$l->{IS_DEFERRED} and $primitives);
 882
 883         # Add NDR_BUFFERS if this one contains deferred stuff
 884         # and deferreds may be pushed
 885         $buffers = 1 if ($l->{CONTAINS_DEFERRED} and $deferred);
 886
 887         return "NDR_SCALARS|NDR_BUFFERS" if ($scalars and $buffers);
 888         return "NDR_SCALARS" if ($scalars);
 889         return "NDR_BUFFERS" if ($buffers);
 890         return undef;
 891 }
 892
 893 sub ParseMemCtxPullFlags($$$$)
 894 {
 895         my ($self, $e, $l) = @_;
 896
 897         return undef unless ($l->{TYPE} eq "POINTER" or $l->{TYPE} eq "ARRAY");
 898
 899         return undef if ($l->{TYPE} eq "ARRAY" and $l->{IS_FIXED});
 900         return undef if has_fast_array($e, $l);
 901         return undef if is_charset_array($e, $l);
 902
 903         my $mem_flags = "0";
 904
 905         if (($l->{TYPE} eq "POINTER") and ($l->{POINTER_TYPE} eq "ref")) {
 906                 my $nl = GetNextLevel($e, $l);
 907                 my $next_is_array = ($nl->{TYPE} eq "ARRAY");
 908                 my $next_is_string = (($nl->{TYPE} eq "DATA") and
 909                                         ($nl->{DATA_TYPE} eq "string"));
 910                 if ($next_is_array or $next_is_string) {
 911                         return undef;
 912                 } else {
 913                         $mem_flags = "LIBNDR_FLAG_REF_ALLOC";
 914                 }
 915         }
 916
 917         return $mem_flags;
 918 }
 919
 920 sub ParseMemCtxPullStart($$$$)
 921 {
 922         my ($self, $e, $l, $ptr_name) = @_;
 923
 924         my $mem_r_ctx = "_mem_save_$e->{NAME}_$l->{LEVEL_INDEX}";
 925         my $mem_c_ctx = $ptr_name;
 926         my $mem_c_flags = $self->ParseMemCtxPullFlags($e, $l);
 927
 928         return unless defined($mem_c_flags);
 929
 930         $self->pidl("$mem_r_ctx = NDR_PULL_GET_MEM_CTX(ndr);");
 931         $self->pidl("NDR_PULL_SET_MEM_CTX(ndr, $mem_c_ctx, $mem_c_flags);");
 932 }
 933
 934 sub ParseMemCtxPullEnd($$$)
 935 {
 936         my ($self, $e, $l) = @_;
 937
 938         my $mem_r_ctx = "_mem_save_$e->{NAME}_$l->{LEVEL_INDEX}";
 939         my $mem_r_flags = $self->ParseMemCtxPullFlags($e, $l);
 940
 941         return unless defined($mem_r_flags);
 942
 943         $self->pidl("NDR_PULL_SET_MEM_CTX(ndr, $mem_r_ctx, $mem_r_flags);");
 944 }
 945
 946 sub CheckStringTerminator($$$$$)
 947 {
 948         my ($self,$ndr,$e,$l,$length) = @_;
 949         my $nl = GetNextLevel($e, $l);
 950
 951         # Make sure last element is zero!
 952         $self->pidl("NDR_CHECK(ndr_check_string_terminator($ndr, $length, sizeof($nl->{DATA_TYPE}_t)));");
 953 }
 954
 955 sub ParseElementPullLevel
 956 {
 957         my($self,$e,$l,$ndr,$var_name,$env,$primitives,$deferred) = @_;
 958
 959         my $ndr_flags = CalcNdrFlags($l, $primitives, $deferred);
 960
 961         if ($l->{TYPE} eq "ARRAY" and ($l->{IS_VARYING} or $l->{IS_CONFORMANT})) {
 962                 $var_name = get_pointer_to($var_name);
 963         }
 964
 965         # Only pull something if there's actually something to be pulled
 966         if (defined($ndr_flags)) {
 967                 if ($l->{TYPE} eq "SUBCONTEXT") {
 968                         my $subndr = $self->ParseSubcontextPullStart($e, $l, $ndr, $env);
 969                         $self->ParseElementPullLevel($e, GetNextLevel($e,$l), $subndr, $var_name, $env, 1, 1);
 970                         $self->ParseSubcontextPullEnd($e, $l, $ndr, $env);
 971                 } elsif ($l->{TYPE} eq "ARRAY") {
 972                         my $length = $self->ParseArrayPullHeader($e, $l, $ndr, $var_name, $env);
 973
 974                         my $nl = GetNextLevel($e, $l);
 975
 976                         if (is_charset_array($e,$l)) {
 977                                 if ($l->{IS_ZERO_TERMINATED}) {
 978                                         $self->CheckStringTerminator($ndr, $e, $l, $length);
 979                                 }
 980                                 $self->pidl("NDR_CHECK(ndr_pull_charset($ndr, $ndr_flags, ".get_pointer_to($var_name).", $length, sizeof(" . mapTypeName($nl->{DATA_TYPE}) . "), CH_$e->{PROPERTIES}->{charset}));");
 981                                 return;
 982                         } elsif (has_fast_array($e, $l)) {
 983                                 if ($l->{IS_ZERO_TERMINATED}) {
 984                                         $self->CheckStringTerminator($ndr,$e,$l,$length);
 985                                 }
 986                                 $self->pidl("NDR_CHECK(ndr_pull_array_$nl->{DATA_TYPE}($ndr, $ndr_flags, $var_name, $length));");
 987                                 return;
 988                         }
 989                 } elsif ($l->{TYPE} eq "POINTER") {
 990                         $self->ParsePtrPull($e, $l, $ndr, $var_name);
 991                 } elsif ($l->{TYPE} eq "SWITCH") {
 992                         $self->ParseSwitchPull($e, $l, $ndr, $var_name, $env);
 993                 } elsif ($l->{TYPE} eq "DATA") {
 994                         $self->ParseDataPull($e, $l, $ndr, $var_name, $primitives, $deferred);
 995                 }
 996         }
 997
 998         # add additional constructions
 999         if ($l->{TYPE} eq "POINTER" and $deferred) {
1000                 if ($l->{POINTER_TYPE} ne "ref") {
1001                         $self->pidl("if ($var_name) {");
1002                         $self->indent;
1003
1004                         if ($l->{POINTER_TYPE} eq "relative") {
1005                                 $self->pidl("uint32_t _relative_save_offset;");
1006                                 $self->pidl("_relative_save_offset = ndr->offset;");
1007                                 $self->pidl("NDR_CHECK(ndr_pull_relative_ptr2(ndr, $var_name));");
1008                         }
1009                 }
1010
1011                 $self->ParseMemCtxPullStart($e, $l, $var_name);
1012
1013                 $var_name = get_value_of($var_name);
1014                 $self->ParseElementPullLevel($e, GetNextLevel($e,$l), $ndr, $var_name, $env, 1, 1);
1015
1016                 $self->ParseMemCtxPullEnd($e,$l);
1017
1018                 if ($l->{POINTER_TYPE} ne "ref") {
1019                         if ($l->{POINTER_TYPE} eq "relative") {
1020                                 $self->pidl("ndr->offset = _relative_save_offset;");
1021                         }
1022                         $self->deindent;
1023                         $self->pidl("}");
1024                 }
1025         } elsif ($l->{TYPE} eq "ARRAY" and
1026                         not has_fast_array($e,$l) and not is_charset_array($e, $l)) {
1027                 my $length = ParseExpr($l->{LENGTH_IS}, $env, $e->{ORIGINAL});
1028                 my $counter = "cntr_$e->{NAME}_$l->{LEVEL_INDEX}";
1029                 my $array_name = $var_name;
1030
1031                 $var_name = $var_name . "[$counter]";
1032
1033                 $self->ParseMemCtxPullStart($e, $l, $array_name);
1034
1035                 if (($primitives and not $l->{IS_DEFERRED}) or ($deferred and $l->{IS_DEFERRED})) {
1036                         my $nl = GetNextLevel($e,$l);
1037
1038                         if ($l->{IS_ZERO_TERMINATED}) {
1039                                 $self->CheckStringTerminator($ndr,$e,$l,$length);
1040                         }
1041
1042                         $self->pidl("for ($counter = 0; $counter < $length; $counter++) {");
1043                         $self->indent;
1044                         $self->ParseElementPullLevel($e, $nl, $ndr, $var_name, $env, 1, 0);
1045                         $self->deindent;
1046                         $self->pidl("}");
1047                 }
1048
1049                 if ($deferred and ContainsDeferred($e, $l)) {
1050                         $self->pidl("for ($counter = 0; $counter < $length; $counter++) {");
1051                         $self->indent;
1052                         $self->ParseElementPullLevel($e,GetNextLevel($e,$l), $ndr, $var_name, $env, 0, 1);
1053                         $self->deindent;
1054                         $self->pidl("}");
1055                 }
1056
1057                 $self->ParseMemCtxPullEnd($e, $l);
1058
1059         } elsif ($l->{TYPE} eq "SWITCH") {
1060                 $self->ParseElementPullLevel($e, GetNextLevel($e,$l), $ndr, $var_name, $env, $primitives, $deferred);
1061         }
1062 }
1063
1064 #####################################################################
1065 # parse scalars in a structure element - pull size
1066 sub ParseElementPull($$$$$$)
1067 {
1068         my($self,$e,$ndr,$env,$primitives,$deferred) = @_;
1069
1070         my $var_name = $env->{$e->{NAME}};
1071         my $represent_name;
1072         my $transmit_name;
1073
1074         return unless $primitives or ($deferred and ContainsDeferred($e, $e->{LEVELS}[0]));
1075
1076         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
1077                 $self->pidl("{");
1078                 $self->indent;
1079                 $represent_name = $var_name;
1080                 $transmit_name = "_transmit_$e->{NAME}";
1081                 $var_name = $transmit_name;
1082                 $self->pidl(mapTypeName($e->{TYPE})." $var_name;");
1083         }
1084
1085         $var_name = append_prefix($e, $var_name);
1086
1087         $self->start_flags($e);
1088
1089         $self->ParseElementPullLevel($e,$e->{LEVELS}[0],$ndr,$var_name,$env,$primitives,$deferred);
1090
1091         $self->end_flags($e);
1092
1093         # Representation type is different from transmit_as
1094         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
1095                 $self->pidl("NDR_CHECK(ndr_$e->{TYPE}_to_$e->{REPRESENTATION_TYPE}($transmit_name, ".get_pointer_to($represent_name)."));");
1096                 $self->deindent;
1097                 $self->pidl("}");
1098         }
1099 }
1100
1101 #####################################################################
1102 # parse a pointer in a struct element or function
1103 sub ParsePtrPull($$$$$)
1104 {
1105         my($self, $e,$l,$ndr,$var_name) = @_;
1106
1107         my $nl = GetNextLevel($e, $l);
1108         my $next_is_array = ($nl->{TYPE} eq "ARRAY");
1109         my $next_is_string = (($nl->{TYPE} eq "DATA") and
1110                                                  ($nl->{DATA_TYPE} eq "string"));
1111
1112         if ($l->{POINTER_TYPE} eq "ref") {
1113                 if ($l->{LEVEL} eq "EMBEDDED") {
1114                         $self->pidl("NDR_CHECK(ndr_pull_ref_ptr($ndr, &_ptr_$e->{NAME}));");
1115                 }
1116
1117                 if (!$next_is_array and !$next_is_string) {
1118                         $self->pidl("if (ndr->flags & LIBNDR_FLAG_REF_ALLOC) {");
1119                         $self->pidl("\tNDR_PULL_ALLOC($ndr, $var_name);");
1120                         $self->pidl("}");
1121                 }
1122
1123                 return;
1124         } elsif (($l->{POINTER_TYPE} eq "unique") or
1125                  ($l->{POINTER_TYPE} eq "relative") or
1126                  ($l->{POINTER_TYPE} eq "full")) {
1127                 $self->pidl("NDR_CHECK(ndr_pull_generic_ptr($ndr, &_ptr_$e->{NAME}));");
1128                 $self->pidl("if (_ptr_$e->{NAME}) {");
1129                 $self->indent;
1130         } else {
1131                 die("Unhandled pointer type $l->{POINTER_TYPE}");
1132         }
1133
1134         # Don't do this for arrays, they're allocated at the actual level
1135         # of the array
1136         unless ($next_is_array or $next_is_string) {
1137                 $self->pidl("NDR_PULL_ALLOC($ndr, $var_name);");
1138         } else {
1139                 # FIXME: Yes, this is nasty.
1140                 # We allocate an array twice
1141                 # - once just to indicate that it's there,
1142                 # - then the real allocation...
1143                 $self->pidl("NDR_PULL_ALLOC($ndr, $var_name);");
1144         }
1145
1146         #$self->pidl("memset($var_name, 0, sizeof($var_name));");
1147         if ($l->{POINTER_TYPE} eq "relative") {
1148                 $self->pidl("NDR_CHECK(ndr_pull_relative_ptr1($ndr, $var_name, _ptr_$e->{NAME}));");
1149         }
1150         $self->deindent;
1151         $self->pidl("} else {");
1152         $self->pidl("\t$var_name = NULL;");
1153         $self->pidl("}");
1154 }
1155
1156 sub ParseStructPushPrimitives($$$$)
1157 {
1158         my ($self, $struct, $varname, $env) = @_;
1159
1160         # see if the structure contains a conformant array. If it
1161         # does, then it must be the last element of the structure, and
1162         # we need to push the conformant length early, as it fits on
1163         # the wire before the structure (and even before the structure
1164         # alignment)
1165         if (defined($struct->{SURROUNDING_ELEMENT})) {
1166                 my $e = $struct->{SURROUNDING_ELEMENT};
1167
1168                 if (defined($e->{LEVELS}[0]) and
1169                         $e->{LEVELS}[0]->{TYPE} eq "ARRAY") {
1170                         my $size;
1171
1172                         if ($e->{LEVELS}[0]->{IS_ZERO_TERMINATED}) {
1173                                 if (has_property($e, "charset")) {
1174                                         $size = "ndr_charset_length($varname->$e->{NAME}, CH_$e->{PROPERTIES}->{charset})";
1175                                 } else {
1176                                         $size = "ndr_string_length($varname->$e->{NAME}, sizeof(*$varname->$e->{NAME}))";
1177                                 }
1178                         } else {
1179                                 $size = ParseExpr($e->{LEVELS}[0]->{SIZE_IS}, $env, $e->{ORIGINAL});
1180                         }
1181
1182                         $self->pidl("NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, $size));");
1183                 } else {
1184                         $self->pidl("NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, ndr_string_array_size(ndr, $varname->$e->{NAME})));");
1185                 }
1186         }
1187
1188         $self->pidl("NDR_CHECK(ndr_push_align(ndr, $struct->{ALIGN}));");
1189
1190         if (defined($struct->{PROPERTIES}{relative_base})) {
1191                 # set the current offset as base for relative pointers
1192                 # and store it based on the toplevel struct/union
1193                 $self->pidl("NDR_CHECK(ndr_push_setup_relative_base_offset1(ndr, $varname, ndr->offset));");
1194         }
1195
1196         $self->ParseElementPush($_, "ndr", $env, 1, 0) foreach (@{$struct->{ELEMENTS}});
1197 }
1198
1199 sub ParseStructPushDeferred($$$)
1200 {
1201         my ($self, $struct, $varname, $env) = @_;
1202         if (defined($struct->{PROPERTIES}{relative_base})) {
1203                 # retrieve the current offset as base for relative pointers
1204                 # based on the toplevel struct/union
1205                 $self->pidl("NDR_CHECK(ndr_push_setup_relative_base_offset2(ndr, $varname));");
1206         }
1207         $self->ParseElementPush($_, "ndr", $env, 0, 1) foreach (@{$struct->{ELEMENTS}});
1208 }
1209
1210 #####################################################################
1211 # parse a struct
1212 sub ParseStructPush($$$)
1213 {
1214         my ($self, $struct, $varname) = @_;
1215
1216         return unless defined($struct->{ELEMENTS});
1217
1218         my $env = GenerateStructEnv($struct, $varname);
1219
1220         EnvSubstituteValue($env, $struct);
1221
1222         $self->DeclareArrayVariables($_) foreach (@{$struct->{ELEMENTS}});
1223
1224         $self->start_flags($struct);
1225
1226         $self->pidl("if (ndr_flags & NDR_SCALARS) {");
1227         $self->indent;
1228         $self->ParseStructPushPrimitives($struct, $varname, $env);
1229         $self->deindent;
1230         $self->pidl("}");
1231
1232         $self->pidl("if (ndr_flags & NDR_BUFFERS) {");
1233         $self->indent;
1234         $self->ParseStructPushDeferred($struct, $varname, $env);
1235         $self->deindent;
1236         $self->pidl("}");
1237
1238         $self->end_flags($struct);
1239 }
1240
1241 #####################################################################
1242 # generate a push function for an enum
1243 sub ParseEnumPush($$$)
1244 {
1245         my($self,$enum,$varname) = @_;
1246         my($type_fn) = $enum->{BASE_TYPE};
1247
1248         $self->start_flags($enum);
1249         $self->pidl("NDR_CHECK(ndr_push_$type_fn(ndr, NDR_SCALARS, $varname));");
1250         $self->end_flags($enum);
1251 }
1252
1253 #####################################################################
1254 # generate a pull function for an enum
1255 sub ParseEnumPull($$$)
1256 {
1257         my($self,$enum,$varname) = @_;
1258         my($type_fn) = $enum->{BASE_TYPE};
1259         my($type_v_decl) = mapTypeName($type_fn);
1260
1261         $self->pidl("$type_v_decl v;");
1262         $self->start_flags($enum);
1263         $self->pidl("NDR_CHECK(ndr_pull_$type_fn(ndr, NDR_SCALARS, &v));");
1264         $self->pidl("*$varname = v;");
1265
1266         $self->end_flags($enum);
1267 }
1268
1269 #####################################################################
1270 # generate a print function for an enum
1271 sub ParseEnumPrint($$$$)
1272 {
1273         my($self,$enum,$name,$varname) = @_;
1274
1275         $self->pidl("const char *val = NULL;");
1276         $self->pidl("");
1277
1278         $self->start_flags($enum);
1279
1280         $self->pidl("switch ($varname) {");
1281         $self->indent;
1282         my $els = \@{$enum->{ELEMENTS}};
1283         foreach my $i (0 .. $#{$els}) {
1284                 my $e = ${$els}[$i];
1285                 chomp $e;
1286                 if ($e =~ /^(.*)=/) {
1287                         $e = $1;
1288                 }
1289                 $self->pidl("case $e: val = \"$e\"; break;");
1290         }
1291
1292         $self->deindent;
1293         $self->pidl("}");
1294
1295         $self->pidl("ndr_print_enum(ndr, name, \"$enum->{TYPE}\", val, $varname);");
1296
1297         $self->end_flags($enum);
1298 }
1299
1300 sub DeclEnum($$$$)
1301 {
1302         my ($e,$t,$name,$varname) = @_;
1303         return "enum $name " .
1304                 ($t eq "pull"?"*":"") . $varname;
1305 }
1306
1307 $typefamily{ENUM} = {
1308         DECL => \&DeclEnum,
1309         PUSH_FN_BODY => \&ParseEnumPush,
1310         PULL_FN_BODY => \&ParseEnumPull,
1311         PRINT_FN_BODY => \&ParseEnumPrint,
1312 };
1313
1314 #####################################################################
1315 # generate a push function for a bitmap
1316 sub ParseBitmapPush($$$)
1317 {
1318         my($self,$bitmap,$varname) = @_;
1319         my($type_fn) = $bitmap->{BASE_TYPE};
1320
1321         $self->start_flags($bitmap);
1322
1323         $self->pidl("NDR_CHECK(ndr_push_$type_fn(ndr, NDR_SCALARS, $varname));");
1324
1325         $self->end_flags($bitmap);
1326 }
1327
1328 #####################################################################
1329 # generate a pull function for an bitmap
1330 sub ParseBitmapPull($$$)
1331 {
1332         my($self,$bitmap,$varname) = @_;
1333         my $type_fn = $bitmap->{BASE_TYPE};
1334         my($type_decl) = mapTypeName($bitmap->{BASE_TYPE});
1335
1336         $self->pidl("$type_decl v;");
1337         $self->start_flags($bitmap);
1338         $self->pidl("NDR_CHECK(ndr_pull_$type_fn(ndr, NDR_SCALARS, &v));");
1339         $self->pidl("*$varname = v;");
1340
1341         $self->end_flags($bitmap);
1342 }
1343
1344 #####################################################################
1345 # generate a print function for an bitmap
1346 sub ParseBitmapPrintElement($$$$$)
1347 {
1348         my($self,$e,$bitmap,$name,$varname) = @_;
1349         my($type_decl) = mapTypeName($bitmap->{BASE_TYPE});
1350         my($type_fn) = $bitmap->{BASE_TYPE};
1351         my($flag);
1352
1353         if ($e =~ /^(\w+) .*$/) {
1354                 $flag = "$1";
1355         } else {
1356                 die "Bitmap: \"$name\" invalid Flag: \"$e\"";
1357         }
1358
1359         $self->pidl("ndr_print_bitmap_flag(ndr, sizeof($type_decl), \"$flag\", $flag, $varname);");
1360 }
1361
1362 #####################################################################
1363 # generate a print function for an bitmap
1364 sub ParseBitmapPrint($$$$)
1365 {
1366         my($self,$bitmap,$name,$varname) = @_;
1367         my($type_decl) = mapTypeName($bitmap->{TYPE});
1368         my($type_fn) = $bitmap->{BASE_TYPE};
1369
1370         $self->start_flags($bitmap);
1371
1372         $self->pidl("ndr_print_$type_fn(ndr, name, $varname);");
1373
1374         $self->pidl("ndr->depth++;");
1375         foreach my $e (@{$bitmap->{ELEMENTS}}) {
1376                 $self->ParseBitmapPrintElement($e, $bitmap, $name, $varname);
1377         }
1378         $self->pidl("ndr->depth--;");
1379
1380         $self->end_flags($bitmap);
1381 }
1382
1383 sub DeclBitmap($$$$)
1384 {
1385         my ($e,$t,$name,$varname) = @_;
1386         return mapTypeName(Parse::Pidl::Typelist::bitmap_type_fn($e)) .
1387                 ($t eq "pull"?" *":" ") . $varname;
1388 }
1389
1390 $typefamily{BITMAP} = {
1391         DECL => \&DeclBitmap,
1392         PUSH_FN_BODY => \&ParseBitmapPush,
1393         PULL_FN_BODY => \&ParseBitmapPull,
1394         PRINT_FN_BODY => \&ParseBitmapPrint,
1395 };
1396
1397 #####################################################################
1398 # generate a struct print function
1399 sub ParseStructPrint($$$$)
1400 {
1401         my($self,$struct,$name,$varname) = @_;
1402
1403         return unless defined $struct->{ELEMENTS};
1404
1405         my $env = GenerateStructEnv($struct, $varname);
1406
1407         $self->DeclareArrayVariables($_) foreach (@{$struct->{ELEMENTS}});
1408
1409         $self->pidl("ndr_print_struct(ndr, name, \"$name\");");
1410
1411         $self->start_flags($struct);
1412
1413         $self->pidl("ndr->depth++;");
1414
1415         $self->ParseElementPrint($_, $env->{$_->{NAME}}, $env)
1416                 foreach (@{$struct->{ELEMENTS}});
1417         $self->pidl("ndr->depth--;");
1418
1419         $self->end_flags($struct);
1420 }
1421
1422 sub DeclarePtrVariables($$)
1423 {
1424         my ($self,$e) = @_;
1425         foreach my $l (@{$e->{LEVELS}}) {
1426                 if ($l->{TYPE} eq "POINTER" and
1427                         not ($l->{POINTER_TYPE} eq "ref" and $l->{LEVEL} eq "TOP")) {
1428                         $self->pidl("uint32_t _ptr_$e->{NAME};");
1429                         last;
1430                 }
1431         }
1432 }
1433
1434 sub DeclareArrayVariables($$)
1435 {
1436         my ($self,$e) = @_;
1437
1438         foreach my $l (@{$e->{LEVELS}}) {
1439                 next if has_fast_array($e,$l);
1440                 next if is_charset_array($e,$l);
1441                 if ($l->{TYPE} eq "ARRAY") {
1442                         $self->pidl("uint32_t cntr_$e->{NAME}_$l->{LEVEL_INDEX};");
1443                 }
1444         }
1445 }
1446
1447 sub DeclareMemCtxVariables($$)
1448 {
1449         my ($self,$e) = @_;
1450         foreach my $l (@{$e->{LEVELS}}) {
1451                 my $mem_flags = $self->ParseMemCtxPullFlags($e, $l);
1452                 if (defined($mem_flags)) {
1453                         $self->pidl("TALLOC_CTX *_mem_save_$e->{NAME}_$l->{LEVEL_INDEX};");
1454                 }
1455         }
1456 }
1457
1458 sub ParseStructPullPrimitives($$$$)
1459 {
1460         my($self,$struct,$varname,$env) = @_;
1461
1462         if (defined $struct->{SURROUNDING_ELEMENT}) {
1463                 $self->pidl("NDR_CHECK(ndr_pull_array_size(ndr, &$varname->$struct->{SURROUNDING_ELEMENT}->{NAME}));");
1464         }
1465
1466         $self->pidl("NDR_CHECK(ndr_pull_align(ndr, $struct->{ALIGN}));");
1467
1468         if (defined($struct->{PROPERTIES}{relative_base})) {
1469                 # set the current offset as base for relative pointers
1470                 # and store it based on the toplevel struct/union
1471                 $self->pidl("NDR_CHECK(ndr_pull_setup_relative_base_offset1(ndr, $varname, ndr->offset));");
1472         }
1473
1474         $self->ParseElementPull($_, "ndr", $env, 1, 0) foreach (@{$struct->{ELEMENTS}});
1475
1476         $self->add_deferred();
1477 }
1478
1479 sub ParseStructPullDeferred($$$$)
1480 {
1481         my ($self,$struct,$varname,$env) = @_;
1482
1483         if (defined($struct->{PROPERTIES}{relative_base})) {
1484                 # retrieve the current offset as base for relative pointers
1485                 # based on the toplevel struct/union
1486                 $self->pidl("NDR_CHECK(ndr_pull_setup_relative_base_offset2(ndr, $varname));");
1487         }
1488         foreach my $e (@{$struct->{ELEMENTS}}) {
1489                 $self->ParseElementPull($e, "ndr", $env, 0, 1);
1490         }
1491
1492         $self->add_deferred();
1493 }
1494
1495 #####################################################################
1496 # parse a struct - pull side
1497 sub ParseStructPull($$$)
1498 {
1499         my($self,$struct,$varname) = @_;
1500
1501         return unless defined $struct->{ELEMENTS};
1502
1503         # declare any internal pointers we need
1504         foreach my $e (@{$struct->{ELEMENTS}}) {
1505                 $self->DeclarePtrVariables($e);
1506                 $self->DeclareArrayVariables($e);
1507                 $self->DeclareMemCtxVariables($e);
1508         }
1509
1510         $self->start_flags($struct);
1511
1512         my $env = GenerateStructEnv($struct, $varname);
1513
1514         $self->pidl("if (ndr_flags & NDR_SCALARS) {");
1515         $self->indent;
1516         $self->ParseStructPullPrimitives($struct,$varname,$env);
1517         $self->deindent;
1518         $self->pidl("}");
1519         $self->pidl("if (ndr_flags & NDR_BUFFERS) {");
1520         $self->indent;
1521         $self->ParseStructPullDeferred($struct,$varname,$env);
1522         $self->deindent;
1523         $self->pidl("}");
1524
1525         $self->end_flags($struct);
1526 }
1527
1528 #####################################################################
1529 # calculate size of ndr struct
1530 sub ParseStructNdrSize($$$$)
1531 {
1532         my ($self,$t, $name, $varname) = @_;
1533         my $sizevar;
1534
1535         if (my $flags = has_property($t, "flag")) {
1536                 $self->pidl("flags |= $flags;");
1537         }
1538         $self->pidl("return ndr_size_struct($varname, flags, (ndr_push_flags_fn_t)ndr_push_$name);");
1539 }
1540
1541 sub DeclStruct($$$$)
1542 {
1543         my ($e,$t,$name,$varname) = @_;
1544         return ($t ne "pull"?"const ":"") . "struct $name *$varname";
1545 }
1546
1547 sub ArgsStructNdrSize($$$)
1548 {
1549         my ($d, $name, $varname) = @_;
1550         return "const struct $name *$varname, int flags";
1551 }
1552
1553 $typefamily{STRUCT} = {
1554         PUSH_FN_BODY => \&ParseStructPush,
1555         DECL => \&DeclStruct,
1556         PULL_FN_BODY => \&ParseStructPull,
1557         PRINT_FN_BODY => \&ParseStructPrint,
1558         SIZE_FN_BODY => \&ParseStructNdrSize,
1559         SIZE_FN_ARGS => \&ArgsStructNdrSize,
1560 };
1561
1562 #####################################################################
1563 # calculate size of ndr struct
1564 sub ParseUnionNdrSize($$$)
1565 {
1566         my ($self, $t, $name, $varname) = @_;
1567         my $sizevar;
1568
1569         if (my $flags = has_property($t, "flag")) {
1570                 $self->pidl("flags |= $flags;");
1571         }
1572
1573         $self->pidl("return ndr_size_union($varname, flags, level, (ndr_push_flags_fn_t)ndr_push_$name);");
1574 }
1575
1576 sub ParseUnionPushPrimitives($$$)
1577 {
1578         my ($self, $e, $varname) = @_;
1579
1580         my $have_default = 0;
1581
1582         $self->pidl("int level = ndr_push_get_switch_value(ndr, $varname);");
1583
1584         if (defined($e->{SWITCH_TYPE})) {
1585                 $self->pidl("NDR_CHECK(ndr_push_$e->{SWITCH_TYPE}(ndr, NDR_SCALARS, level));");
1586         }
1587
1588         $self->pidl("switch (level) {");
1589         $self->indent;
1590         foreach my $el (@{$e->{ELEMENTS}}) {
1591                 if ($el->{CASE} eq "default") {
1592                         $have_default = 1;
1593                 }
1594                 $self->pidl("$el->{CASE}:");
1595
1596                 if ($el->{TYPE} ne "EMPTY") {
1597                         $self->indent;
1598                         if (defined($e->{PROPERTIES}{relative_base})) {
1599                                 $self->pidl("NDR_CHECK(ndr_push_align(ndr, $el->{ALIGN}));");
1600                                 # set the current offset as base for relative pointers
1601                                 # and store it based on the toplevel struct/union
1602                                 $self->pidl("NDR_CHECK(ndr_push_setup_relative_base_offset1(ndr, $varname, ndr->offset));");
1603                         }
1604                         $self->DeclareArrayVariables($el);
1605                         $self->ParseElementPush($el, "ndr", {$el->{NAME} => "$varname->$el->{NAME}"}, 1, 0);
1606                         $self->deindent;
1607                 }
1608                 $self->pidl("break;");
1609                 $self->pidl("");
1610         }
1611         if (! $have_default) {
1612                 $self->pidl("default:");
1613                 $self->pidl("\treturn ndr_push_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);");
1614         }
1615         $self->deindent;
1616         $self->pidl("}");
1617 }
1618
1619 sub ParseUnionPushDeferred($$$)
1620 {
1621         my ($self,$e,$varname) = @_;
1622
1623         my $have_default = 0;
1624
1625         $self->pidl("int level = ndr_push_get_switch_value(ndr, $varname);");
1626         if (defined($e->{PROPERTIES}{relative_base})) {
1627                 # retrieve the current offset as base for relative pointers
1628                 # based on the toplevel struct/union
1629                 $self->pidl("NDR_CHECK(ndr_push_setup_relative_base_offset2(ndr, $varname));");
1630         }
1631         $self->pidl("switch (level) {");
1632         $self->indent;
1633         foreach my $el (@{$e->{ELEMENTS}}) {
1634                 if ($el->{CASE} eq "default") {
1635                         $have_default = 1;
1636                 }
1637
1638                 $self->pidl("$el->{CASE}:");
1639                 if ($el->{TYPE} ne "EMPTY") {
1640                         $self->indent;
1641                         $self->ParseElementPush($el, "ndr", {$el->{NAME} => "$varname->$el->{NAME}"}, 0, 1);
1642                         $self->deindent;
1643                 }
1644                 $self->pidl("break;");
1645                 $self->pidl("");
1646         }
1647         if (! $have_default) {
1648                 $self->pidl("default:");
1649                 $self->pidl("\treturn ndr_push_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);");
1650         }
1651         $self->deindent;
1652         $self->pidl("}");
1653 }
1654
1655 #####################################################################
1656 # parse a union - push side
1657 sub ParseUnionPush($$$)
1658 {
1659         my ($self,$e,$varname) = @_;
1660         my $have_default = 0;
1661
1662         $self->start_flags($e);
1663
1664         $self->pidl("if (ndr_flags & NDR_SCALARS) {");
1665         $self->indent;
1666         $self->ParseUnionPushPrimitives($e, $varname);
1667         $self->deindent;
1668         $self->pidl("}");
1669         $self->pidl("if (ndr_flags & NDR_BUFFERS) {");
1670         $self->indent;
1671         $self->ParseUnionPushDeferred($e, $varname);
1672         $self->deindent;
1673         $self->pidl("}");
1674         $self->end_flags($e);
1675 }
1676
1677 #####################################################################
1678 # print a union
1679 sub ParseUnionPrint($$$$)
1680 {
1681         my ($self,$e,$name,$varname) = @_;
1682         my $have_default = 0;
1683
1684         $self->pidl("int level;");
1685         foreach my $el (@{$e->{ELEMENTS}}) {
1686                 $self->DeclareArrayVariables($el);
1687         }
1688
1689         $self->start_flags($e);
1690
1691         $self->pidl("level = ndr_print_get_switch_value(ndr, $varname);");
1692
1693         $self->pidl("ndr_print_union(ndr, name, level, \"$name\");");
1694
1695         $self->pidl("switch (level) {");
1696         $self->indent;
1697         foreach my $el (@{$e->{ELEMENTS}}) {
1698                 if ($el->{CASE} eq "default") {
1699                         $have_default = 1;
1700                 }
1701                 $self->pidl("$el->{CASE}:");
1702                 if ($el->{TYPE} ne "EMPTY") {
1703                         $self->indent;
1704                         $self->ParseElementPrint($el, "$varname->$el->{NAME}", {});
1705                         $self->deindent;
1706                 }
1707                 $self->pidl("break;");
1708                 $self->pidl("");
1709         }
1710         if (! $have_default) {
1711                 $self->pidl("default:");
1712                 $self->pidl("\tndr_print_bad_level(ndr, name, level);");
1713         }
1714         $self->deindent;
1715         $self->pidl("}");
1716
1717         $self->end_flags($e);
1718 }
1719
1720 sub ParseUnionPullPrimitives($$$$)
1721 {
1722         my ($self,$e,$varname,$switch_type) = @_;
1723         my $have_default = 0;
1724
1725         if (defined($switch_type)) {
1726                 $self->pidl("NDR_CHECK(ndr_pull_$switch_type(ndr, NDR_SCALARS, &_level));");
1727                 $self->pidl("if (_level != level) {");
1728                 $self->pidl("\treturn ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value %u for $varname\", _level);");
1729                 $self->pidl("}");
1730         }
1731
1732         $self->pidl("switch (level) {");
1733         $self->indent;
1734         foreach my $el (@{$e->{ELEMENTS}}) {
1735                 if ($el->{CASE} eq "default") {
1736                         $have_default = 1;
1737                 }
1738                 $self->pidl("$el->{CASE}: {");
1739
1740                 if ($el->{TYPE} ne "EMPTY") {
1741                         $self->indent;
1742                         $self->DeclarePtrVariables($el);
1743                         $self->DeclareArrayVariables($el);
1744                         if (defined($e->{PROPERTIES}{relative_base})) {
1745                                 $self->pidl("NDR_CHECK(ndr_pull_align(ndr, $el->{ALIGN}));");
1746                                 # set the current offset as base for relative pointers
1747                                 # and store it based on the toplevel struct/union
1748                                 $self->pidl("NDR_CHECK(ndr_pull_setup_relative_base_offset1(ndr, $varname, ndr->offset));");
1749                         }
1750                         $self->ParseElementPull($el, "ndr", {$el->{NAME} => "$varname->$el->{NAME}"}, 1, 0);
1751                         $self->deindent;
1752                 }
1753                 $self->pidl("break; }");
1754                 $self->pidl("");
1755         }
1756         if (! $have_default) {
1757                 $self->pidl("default:");
1758                 $self->pidl("\treturn ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);");
1759         }
1760         $self->deindent;
1761         $self->pidl("}");
1762 }
1763
1764 sub ParseUnionPullDeferred($$$)
1765 {
1766         my ($self,$e,$varname) = @_;
1767         my $have_default = 0;
1768
1769         if (defined($e->{PROPERTIES}{relative_base})) {
1770                 # retrieve the current offset as base for relative pointers
1771                 # based on the toplevel struct/union
1772                 $self->pidl("NDR_CHECK(ndr_pull_setup_relative_base_offset2(ndr, $varname));");
1773         }
1774         $self->pidl("switch (level) {");
1775         $self->indent;
1776         foreach my $el (@{$e->{ELEMENTS}}) {
1777                 if ($el->{CASE} eq "default") {
1778                         $have_default = 1;
1779                 }
1780
1781                 $self->pidl("$el->{CASE}:");
1782                 if ($el->{TYPE} ne "EMPTY") {
1783                         $self->indent;
1784                         $self->ParseElementPull($el, "ndr", {$el->{NAME} => "$varname->$el->{NAME}"}, 0, 1);
1785                         $self->deindent;
1786                 }
1787                 $self->pidl("break;");
1788                 $self->pidl("");
1789         }
1790         if (! $have_default) {
1791                 $self->pidl("default:");
1792                 $self->pidl("\treturn ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);");
1793         }
1794         $self->deindent;
1795         $self->pidl("}");
1796
1797
1798 }
1799
1800 #####################################################################
1801 # parse a union - pull side
1802 sub ParseUnionPull($$$)
1803 {
1804         my ($self,$e,$varname) = @_;
1805         my $switch_type = $e->{SWITCH_TYPE};
1806
1807         $self->pidl("int level;");
1808         if (defined($switch_type)) {
1809                 if (Parse::Pidl::Typelist::typeIs($switch_type, "ENUM")) {
1810                         $switch_type = Parse::Pidl::Typelist::enum_type_fn(getType($switch_type)->{DATA});
1811                 }
1812                 $self->pidl(mapTypeName($switch_type) . " _level;");
1813         }
1814
1815         my %double_cases = ();
1816         foreach my $el (@{$e->{ELEMENTS}}) {
1817                 next if ($el->{TYPE} eq "EMPTY");
1818                 next if ($double_cases{"$el->{NAME}"});
1819                 $self->DeclareMemCtxVariables($el);
1820                 $double_cases{"$el->{NAME}"} = 1;
1821         }
1822
1823         $self->start_flags($e);
1824
1825         $self->pidl("level = ndr_pull_get_switch_value(ndr, $varname);");
1826
1827         $self->pidl("if (ndr_flags & NDR_SCALARS) {");
1828         $self->indent;
1829         $self->ParseUnionPullPrimitives($e,$varname,$switch_type);
1830         $self->deindent;
1831         $self->pidl("}");
1832
1833         $self->pidl("if (ndr_flags & NDR_BUFFERS) {");
1834         $self->indent;
1835         $self->ParseUnionPullDeferred($e,$varname);
1836         $self->deindent;
1837         $self->pidl("}");
1838
1839         $self->add_deferred();
1840
1841         $self->end_flags($e);
1842 }
1843
1844 sub DeclUnion($$$$)
1845 {
1846         my ($e,$t,$name,$varname) = @_;
1847         return ($t ne "pull"?"const ":"") . "union $name *$varname";
1848 }
1849
1850 sub ArgsUnionNdrSize($$)
1851 {
1852         my ($d,$name) = @_;
1853         return "const union $name *r, uint32_t level, int flags";
1854 }
1855
1856 $typefamily{UNION} = {
1857         PUSH_FN_BODY => \&ParseUnionPush,
1858         DECL => \&DeclUnion,
1859         PULL_FN_BODY => \&ParseUnionPull,
1860         PRINT_FN_BODY => \&ParseUnionPrint,
1861         SIZE_FN_ARGS => \&ArgsUnionNdrSize,
1862         SIZE_FN_BODY => \&ParseUnionNdrSize,
1863 };
1864
1865 #####################################################################
1866 # parse a typedef - push side
1867 sub ParseTypedefPush($$$)
1868 {
1869         my($self,$e,$varname) = @_;
1870
1871         $typefamily{$e->{DATA}->{TYPE}}->{PUSH_FN_BODY}->($self, $e->{DATA}, $varname);
1872 }
1873
1874 #####################################################################
1875 # parse a typedef - pull side
1876 sub ParseTypedefPull($$$)
1877 {
1878         my($self,$e,$varname) = @_;
1879
1880         $typefamily{$e->{DATA}->{TYPE}}->{PULL_FN_BODY}->($self, $e->{DATA}, $varname);
1881 }
1882
1883 #####################################################################
1884 # parse a typedef - print side
1885 sub ParseTypedefPrint($$$$)
1886 {
1887         my($self,$e,$name,$varname) = @_;
1888
1889         $typefamily{$e->{DATA}->{TYPE}}->{PRINT_FN_BODY}->($self, $e->{DATA}, $name, $varname);
1890 }
1891
1892 #####################################################################
1893 ## calculate the size of a structure
1894 sub ParseTypedefNdrSize($$$$)
1895 {
1896         my($self,$t,$name,$varname) = @_;
1897
1898         $typefamily{$t->{DATA}->{TYPE}}->{SIZE_FN_BODY}->($self, $t->{DATA}, $name, $varname);
1899 }
1900
1901 sub DeclTypedef($$$$)
1902 {
1903         my ($e, $t, $name, $varname) = @_;
1904
1905         return $typefamily{$e->{DATA}->{TYPE}}->{DECL}->($e->{DATA}, $t, $name, $varname);
1906 }
1907
1908 sub ArgsTypedefNdrSize($$$)
1909 {
1910         my ($d, $name, $varname) = @_;
1911         return $typefamily{$d->{DATA}->{TYPE}}->{SIZE_FN_ARGS}->($d->{DATA}, $name, $varname);
1912 }
1913
1914 $typefamily{TYPEDEF} = {
1915         PUSH_FN_BODY => \&ParseTypedefPush,
1916         DECL => \&DeclTypedef,
1917         PULL_FN_BODY => \&ParseTypedefPull,
1918         PRINT_FN_BODY => \&ParseTypedefPrint,
1919         SIZE_FN_ARGS => \&ArgsTypedefNdrSize,
1920         SIZE_FN_BODY => \&ParseTypedefNdrSize,
1921 };
1922
1923 #####################################################################
1924 # parse a function - print side
1925 sub ParseFunctionPrint($$)
1926 {
1927         my($self, $fn) = @_;
1928
1929         $self->pidl_hdr("void ndr_print_$fn->{NAME}(struct ndr_print *ndr, const char *name, int flags, const struct $fn->{NAME} *r);");
1930
1931         return if has_property($fn, "noprint");
1932
1933         $self->pidl("_PUBLIC_ void ndr_print_$fn->{NAME}(struct ndr_print *ndr, const char *name, int flags, const struct $fn->{NAME} *r)");
1934         $self->pidl("{");
1935         $self->indent;
1936
1937         foreach my $e (@{$fn->{ELEMENTS}}) {
1938                 $self->DeclareArrayVariables($e);
1939         }
1940
1941         $self->pidl("ndr_print_struct(ndr, name, \"$fn->{NAME}\");");
1942         $self->pidl("ndr->depth++;");
1943
1944         $self->pidl("if (flags & NDR_SET_VALUES) {");
1945         $self->pidl("\tndr->flags |= LIBNDR_PRINT_SET_VALUES;");
1946         $self->pidl("}");
1947
1948         $self->pidl("if (flags & NDR_IN) {");
1949         $self->indent;
1950         $self->pidl("ndr_print_struct(ndr, \"in\", \"$fn->{NAME}\");");
1951         $self->pidl("ndr->depth++;");
1952
1953         my $env = GenerateFunctionInEnv($fn);
1954
1955         foreach my $e (@{$fn->{ELEMENTS}}) {
1956                 if (grep(/in/,@{$e->{DIRECTION}})) {
1957                         $self->ParseElementPrint($e, $env->{$e->{NAME}}, $env);
1958                 }
1959         }
1960         $self->pidl("ndr->depth--;");
1961         $self->deindent;
1962         $self->pidl("}");
1963
1964         $self->pidl("if (flags & NDR_OUT) {");
1965         $self->indent;
1966         $self->pidl("ndr_print_struct(ndr, \"out\", \"$fn->{NAME}\");");
1967         $self->pidl("ndr->depth++;");
1968
1969         $env = GenerateFunctionOutEnv($fn);
1970         foreach my $e (@{$fn->{ELEMENTS}}) {
1971                 if (grep(/out/,@{$e->{DIRECTION}})) {
1972                         $self->ParseElementPrint($e, $env->{$e->{NAME}}, $env);
1973                 }
1974         }
1975         if ($fn->{RETURN_TYPE}) {
1976                 $self->pidl("ndr_print_$fn->{RETURN_TYPE}(ndr, \"result\", r->out.result);");
1977         }
1978         $self->pidl("ndr->depth--;");
1979         $self->deindent;
1980         $self->pidl("}");
1981
1982         $self->pidl("ndr->depth--;");
1983         $self->deindent;
1984         $self->pidl("}");
1985         $self->pidl("");
1986 }
1987
1988 #####################################################################
1989 # parse a function
1990 sub ParseFunctionPush($$)
1991 {
1992         my($self, $fn) = @_;
1993
1994         $self->fn_declare("push", $fn, "enum ndr_err_code ndr_push_$fn->{NAME}(struct ndr_push *ndr, int flags, const struct $fn->{NAME} *r)") or return;
1995
1996         return if has_property($fn, "nopush");
1997
1998         $self->pidl("{");
1999         $self->indent;
2000
2001         foreach my $e (@{$fn->{ELEMENTS}}) {
2002                 $self->DeclareArrayVariables($e);
2003         }
2004
2005         $self->pidl("if (flags & NDR_IN) {");
2006         $self->indent;
2007
2008         my $env = GenerateFunctionInEnv($fn);
2009
2010         EnvSubstituteValue($env, $fn);
2011
2012         foreach my $e (@{$fn->{ELEMENTS}}) {
2013                 if (grep(/in/,@{$e->{DIRECTION}})) {
2014                         $self->ParseElementPush($e, "ndr", $env, 1, 1);
2015                 }
2016         }
2017
2018         $self->deindent;
2019         $self->pidl("}");
2020
2021         $self->pidl("if (flags & NDR_OUT) {");
2022         $self->indent;
2023
2024         $env = GenerateFunctionOutEnv($fn);
2025         foreach my $e (@{$fn->{ELEMENTS}}) {
2026                 if (grep(/out/,@{$e->{DIRECTION}})) {
2027                         $self->ParseElementPush($e, "ndr", $env, 1, 1);
2028                 }
2029         }
2030
2031         if ($fn->{RETURN_TYPE}) {
2032                 $self->pidl("NDR_CHECK(ndr_push_$fn->{RETURN_TYPE}(ndr, NDR_SCALARS, r->out.result));");
2033         }
2034
2035         $self->deindent;
2036         $self->pidl("}");
2037         $self->pidl("return NDR_ERR_SUCCESS;");
2038         $self->deindent;
2039         $self->pidl("}");
2040         $self->pidl("");
2041 }
2042
2043 sub AllocateArrayLevel($$$$$$)
2044 {
2045         my ($self,$e,$l,$ndr,$var,$size) = @_;
2046
2047         my $pl = GetPrevLevel($e, $l);
2048         if (defined($pl) and
2049             $pl->{TYPE} eq "POINTER" and
2050             $pl->{POINTER_TYPE} eq "ref"
2051             and not $l->{IS_ZERO_TERMINATED}) {
2052                 $self->pidl("if (ndr->flags & LIBNDR_FLAG_REF_ALLOC) {");
2053                 $self->pidl("\tNDR_PULL_ALLOC_N($ndr, $var, $size);");
2054                 $self->pidl("}");
2055                 if (grep(/in/,@{$e->{DIRECTION}}) and
2056                     grep(/out/,@{$e->{DIRECTION}})) {
2057                         $self->pidl("memcpy(r->out.$e->{NAME}, r->in.$e->{NAME}, $size * sizeof(*r->in.$e->{NAME}));");
2058                 }
2059                 return;
2060         }
2061
2062         $self->pidl("NDR_PULL_ALLOC_N($ndr, $var, $size);");
2063 }
2064
2065 #####################################################################
2066 # parse a function
2067 sub ParseFunctionPull($$)
2068 {
2069         my($self,$fn) = @_;
2070
2071         # pull function args
2072         $self->fn_declare("pull", $fn, "enum ndr_err_code ndr_pull_$fn->{NAME}(struct ndr_pull *ndr, int flags, struct $fn->{NAME} *r)") or return;
2073
2074         $self->pidl("{");
2075         $self->indent;
2076
2077         # declare any internal pointers we need
2078         foreach my $e (@{$fn->{ELEMENTS}}) {
2079                 $self->DeclarePtrVariables($e);
2080                 $self->DeclareArrayVariables($e);
2081         }
2082
2083         my %double_cases = ();
2084         foreach my $e (@{$fn->{ELEMENTS}}) {
2085                 next if ($e->{TYPE} eq "EMPTY");
2086                 next if ($double_cases{"$e->{NAME}"});
2087                 $self->DeclareMemCtxVariables($e);
2088                 $double_cases{"$e->{NAME}"} = 1;
2089         }
2090
2091         $self->pidl("if (flags & NDR_IN) {");
2092         $self->indent;
2093
2094         # auto-init the out section of a structure. I originally argued that
2095         # this was a bad idea as it hides bugs, but coping correctly
2096         # with initialisation and not wiping ref vars is turning
2097         # out to be too tricky (tridge)
2098         foreach my $e (@{$fn->{ELEMENTS}}) {
2099                 next unless grep(/out/, @{$e->{DIRECTION}});
2100                 $self->pidl("ZERO_STRUCT(r->out);");
2101                 $self->pidl("");
2102                 last;
2103         }
2104
2105         my $env = GenerateFunctionInEnv($fn);
2106
2107         foreach my $e (@{$fn->{ELEMENTS}}) {
2108                 next unless (grep(/in/, @{$e->{DIRECTION}}));
2109                 $self->ParseElementPull($e, "ndr", $env, 1, 1);
2110         }
2111
2112         # allocate the "simple" out ref variables. FIXME: Shouldn't this have it's
2113         # own flag rather than be in NDR_IN ?
2114
2115         foreach my $e (@{$fn->{ELEMENTS}}) {
2116                 next unless (grep(/out/, @{$e->{DIRECTION}}));
2117                 next unless ($e->{LEVELS}[0]->{TYPE} eq "POINTER" and
2118                              $e->{LEVELS}[0]->{POINTER_TYPE} eq "ref");
2119                 next if (($e->{LEVELS}[1]->{TYPE} eq "DATA") and
2120                                  ($e->{LEVELS}[1]->{DATA_TYPE} eq "string"));
2121                 next if (($e->{LEVELS}[1]->{TYPE} eq "ARRAY")
2122                         and   $e->{LEVELS}[1]->{IS_ZERO_TERMINATED});
2123
2124                 if ($e->{LEVELS}[1]->{TYPE} eq "ARRAY") {
2125                         my $size = ParseExprExt($e->{LEVELS}[1]->{SIZE_IS}, $env, $e->{ORIGINAL},
2126                                 check_null_pointer($e, $env, sub { $self->pidl(shift); },
2127                                                    "return ndr_pull_error(ndr, NDR_ERR_INVALID_POINTER, \"NULL Pointer for size_is()\");"),
2128                                 check_fully_dereferenced($e, $env));
2129                         $self->pidl("NDR_PULL_ALLOC_N(ndr, r->out.$e->{NAME}, $size);");
2130
2131                         if (grep(/in/, @{$e->{DIRECTION}})) {
2132                                 $self->pidl("memcpy(r->out.$e->{NAME}, r->in.$e->{NAME}, $size * sizeof(*r->in.$e->{NAME}));");
2133                         } else {
2134                                 $self->pidl("memset(r->out.$e->{NAME}, 0, $size * sizeof(*r->out.$e->{NAME}));");
2135                         }
2136                 } else {
2137                         $self->pidl("NDR_PULL_ALLOC(ndr, r->out.$e->{NAME});");
2138
2139                         if (grep(/in/, @{$e->{DIRECTION}})) {
2140                                 $self->pidl("*r->out.$e->{NAME} = *r->in.$e->{NAME};");
2141                         } else {
2142                                 $self->pidl("ZERO_STRUCTP(r->out.$e->{NAME});");
2143                         }
2144                 }
2145         }
2146
2147         $self->add_deferred();
2148         $self->deindent;
2149         $self->pidl("}");
2150
2151         $self->pidl("if (flags & NDR_OUT) {");
2152         $self->indent;
2153
2154         $env = GenerateFunctionOutEnv($fn);
2155         foreach my $e (@{$fn->{ELEMENTS}}) {
2156                 next unless grep(/out/, @{$e->{DIRECTION}});
2157                 $self->ParseElementPull($e, "ndr", $env, 1, 1);
2158         }
2159
2160         if ($fn->{RETURN_TYPE}) {
2161                 $self->pidl("NDR_CHECK(ndr_pull_$fn->{RETURN_TYPE}(ndr, NDR_SCALARS, &r->out.result));");
2162         }
2163
2164         $self->add_deferred();
2165         $self->deindent;
2166         $self->pidl("}");
2167
2168         $self->pidl("return NDR_ERR_SUCCESS;");
2169         $self->deindent;
2170         $self->pidl("}");
2171         $self->pidl("");
2172 }
2173
2174 #####################################################################
2175 # produce a function call table
2176 sub FunctionTable($$)
2177 {
2178         my($self,$interface) = @_;
2179         my $count = 0;
2180         my $uname = uc $interface->{NAME};
2181
2182         return if ($#{$interface->{FUNCTIONS}}+1 == 0);
2183         return unless defined ($interface->{PROPERTIES}->{uuid});
2184
2185         $self->pidl("static const struct ndr_interface_call $interface->{NAME}\_calls[] = {");
2186         foreach my $d (@{$interface->{FUNCTIONS}}) {
2187                 next if not defined($d->{OPNUM});
2188                 $self->pidl("\t{");
2189                 $self->pidl("\t\t\"$d->{NAME}\",");
2190                 $self->pidl("\t\tsizeof(struct $d->{NAME}),");
2191                 $self->pidl("\t\t(ndr_push_flags_fn_t) ndr_push_$d->{NAME},");
2192                 $self->pidl("\t\t(ndr_pull_flags_fn_t) ndr_pull_$d->{NAME},");
2193                 $self->pidl("\t\t(ndr_print_function_t) ndr_print_$d->{NAME},");
2194                 $self->pidl("\t\t".($d->{ASYNC}?"true":"false").",");
2195                 $self->pidl("\t},");
2196                 $count++;
2197         }
2198         $self->pidl("\t{ NULL, 0, NULL, NULL, NULL, false }");
2199         $self->pidl("};");
2200         $self->pidl("");
2201
2202         $self->pidl("static const char * const $interface->{NAME}\_endpoint_strings[] = {");
2203         foreach my $ep (@{$interface->{ENDPOINTS}}) {
2204                 $self->pidl("\t$ep, ");
2205         }
2206         my $endpoint_count = $#{$interface->{ENDPOINTS}}+1;
2207
2208         $self->pidl("};");
2209         $self->pidl("");
2210
2211         $self->pidl("static const struct ndr_interface_string_array $interface->{NAME}\_endpoints = {");
2212         $self->pidl("\t.count\t= $endpoint_count,");
2213         $self->pidl("\t.names\t= $interface->{NAME}\_endpoint_strings");
2214         $self->pidl("};");
2215         $self->pidl("");
2216
2217         if (! defined $interface->{PROPERTIES}->{authservice}) {
2218                 $interface->{PROPERTIES}->{authservice} = "\"host\"";
2219         }
2220
2221         my @a = split / /, $interface->{PROPERTIES}->{authservice};
2222         my $authservice_count = $#a + 1;
2223
2224         $self->pidl("static const char * const $interface->{NAME}\_authservice_strings[] = {");
2225         foreach my $ap (@a) {
2226                 $self->pidl("\t$ap, ");
2227         }
2228         $self->pidl("};");
2229         $self->pidl("");
2230
2231         $self->pidl("static const struct ndr_interface_string_array $interface->{NAME}\_authservices = {");
2232         $self->pidl("\t.count\t= $endpoint_count,");
2233         $self->pidl("\t.names\t= $interface->{NAME}\_authservice_strings");
2234         $self->pidl("};");
2235         $self->pidl("");
2236
2237         $self->pidl("\nconst struct ndr_interface_table ndr_table_$interface->{NAME} = {");
2238         $self->pidl("\t.name\t\t= \"$interface->{NAME}\",");
2239         $self->pidl("\t.syntax_id\t= {");
2240         $self->pidl("\t\t" . print_uuid($interface->{UUID}) .",");
2241         $self->pidl("\t\tNDR_$uname\_VERSION");
2242         $self->pidl("\t},");
2243         $self->pidl("\t.helpstring\t= NDR_$uname\_HELPSTRING,");
2244         $self->pidl("\t.num_calls\t= $count,");
2245         $self->pidl("\t.calls\t\t= $interface->{NAME}\_calls,");
2246         $self->pidl("\t.endpoints\t= &$interface->{NAME}\_endpoints,");
2247         $self->pidl("\t.authservices\t= &$interface->{NAME}\_authservices");
2248         $self->pidl("};");
2249         $self->pidl("");
2250
2251 }
2252
2253 #####################################################################
2254 # generate include statements for imported idl files
2255 sub HeaderImport
2256 {
2257         my $self = shift;
2258         my @imports = @_;
2259         foreach (@imports) {
2260                 s/\.idl\"$//;
2261                 s/^\"//;
2262                 $self->pidl(choose_header("librpc/gen_ndr/ndr_$_\.h", "gen_ndr/ndr_$_.h"));
2263         }
2264 }
2265
2266 #####################################################################
2267 # generate include statements for included header files
2268 sub HeaderInclude
2269 {
2270         my $self = shift;
2271         my @includes = @_;
2272         foreach (@includes) {
2273                 $self->pidl_hdr("#include $_");
2274         }
2275 }
2276
2277 #####################################################################
2278 # generate prototypes and defines for the interface definitions
2279 # FIXME: these prototypes are for the DCE/RPC client functions, not the
2280 # NDR parser and so do not belong here, technically speaking
2281 sub HeaderInterface($$$)
2282 {
2283         my($self,$interface,$needed) = @_;
2284
2285         my $count = 0;
2286
2287         if ($needed->{"compression"}) {
2288                 $self->pidl(choose_header("librpc/ndr/ndr_compression.h", "ndr/compression.h"));
2289         }
2290
2291         if (has_property($interface, "object")) {
2292                 $self->pidl(choose_header("librpc/gen_ndr/ndr_orpc.h", "ndr/orpc.h"));
2293         }
2294
2295         if (defined $interface->{PROPERTIES}->{helper}) {
2296                 $self->HeaderInclude(split / /, $interface->{PROPERTIES}->{helper});
2297         }
2298
2299         if (defined $interface->{PROPERTIES}->{uuid}) {
2300                 my $name = uc $interface->{NAME};
2301                 $self->pidl_hdr("#define NDR_$name\_UUID " .
2302                 Parse::Pidl::Util::make_str(lc($interface->{PROPERTIES}->{uuid})));
2303
2304                 if(!defined $interface->{PROPERTIES}->{version}) { $interface->{PROPERTIES}->{version} = "0.0"; }
2305                 $self->pidl_hdr("#define NDR_$name\_VERSION $interface->{PROPERTIES}->{version}");
2306
2307                 $self->pidl_hdr("#define NDR_$name\_NAME \"$interface->{NAME}\"");
2308
2309                 if(!defined $interface->{PROPERTIES}->{helpstring}) { $interface->{PROPERTIES}->{helpstring} = "NULL"; }
2310                 $self->pidl_hdr("#define NDR_$name\_HELPSTRING $interface->{PROPERTIES}->{helpstring}");
2311
2312                 $self->pidl_hdr("extern const struct ndr_interface_table ndr_table_$interface->{NAME};");
2313         }
2314
2315         foreach (@{$interface->{FUNCTIONS}}) {
2316                 next if has_property($_, "noopnum");
2317                 next if grep(/$_->{NAME}/,@{$interface->{INHERITED_FUNCTIONS}});
2318                 my $u_name = uc $_->{NAME};
2319
2320                 my $val = sprintf("0x%02x", $count);
2321                 if (defined($interface->{BASE})) {
2322                         $val .= " + NDR_" . uc $interface->{BASE} . "_CALL_COUNT";
2323                 }
2324
2325                 $self->pidl_hdr("#define NDR_$u_name ($val)");
2326
2327                 $self->pidl_hdr("");
2328                 $count++;
2329         }
2330
2331         my $val = $count;
2332
2333         if (defined($interface->{BASE})) {
2334                 $val .= " + NDR_" . uc $interface->{BASE} . "_CALL_COUNT";
2335         }
2336
2337         $self->pidl_hdr("#define NDR_" . uc $interface->{NAME} . "_CALL_COUNT ($val)");
2338
2339 }
2340
2341 sub ParseTypePush($$$$$)
2342 {
2343         my ($self,$e,$varname, $primitives, $deferred) = @_;
2344
2345         # save the old relative_base_offset
2346         $self->pidl("uint32_t _save_relative_base_offset = ndr_push_get_relative_base_offset(ndr);") if defined(has_property($e, "relative_base"));
2347         $typefamily{$e->{TYPE}}->{PUSH_FN_BODY}->($self, $e, $varname);
2348         # restore the old relative_base_offset
2349         $self->pidl("ndr_push_restore_relative_base_offset(ndr, _save_relative_base_offset);") if defined(has_property($e, "relative_base"));
2350 }
2351
2352 sub ParseTypePushFunction($$$)
2353 {
2354         my ($self, $e, $varname) = @_;
2355
2356         my $args = $typefamily{$e->{TYPE}}->{DECL}->($e, "push", $e->{NAME}, $varname);
2357         $self->fn_declare("push", $e, "enum ndr_err_code ".TypeFunctionName("ndr_push", $e)."(struct ndr_push *ndr, int ndr_flags, $args)") or return;
2358
2359         $self->pidl("{");
2360         $self->indent;
2361         $self->ParseTypePush($e, $varname, 1, 1);
2362         $self->pidl("return NDR_ERR_SUCCESS;");
2363         $self->deindent;
2364         $self->pidl("}");
2365         $self->pidl("");;
2366 }
2367
2368 sub ParseTypePull($$$$$)
2369 {
2370         my ($self, $e, $varname, $primitives, $deferred) = @_;
2371
2372         # save the old relative_base_offset
2373         $self->pidl("uint32_t _save_relative_base_offset = ndr_pull_get_relative_base_offset(ndr);") if defined(has_property($e, "relative_base"));
2374         $typefamily{$e->{TYPE}}->{PULL_FN_BODY}->($self, $e, $varname);
2375         # restore the old relative_base_offset
2376         $self->pidl("ndr_pull_restore_relative_base_offset(ndr, _save_relative_base_offset);") if defined(has_property($e, "relative_base"));
2377 }
2378
2379 sub ParseTypePullFunction($$)
2380 {
2381         my ($self, $e, $varname) = @_;
2382
2383         my $args = $typefamily{$e->{TYPE}}->{DECL}->($e, "pull", $e->{NAME}, $varname);
2384
2385         $self->fn_declare("pull", $e, "enum ndr_err_code ".TypeFunctionName("ndr_pull", $e)."(struct ndr_pull *ndr, int ndr_flags, $args)") or return;
2386
2387         $self->pidl("{");
2388         $self->indent;
2389         $self->ParseTypePull($e, $varname, 1, 1);
2390         $self->pidl("return NDR_ERR_SUCCESS;");
2391         $self->deindent;
2392         $self->pidl("}");
2393         $self->pidl("");
2394 }
2395
2396 sub ParseTypePrint($$$)
2397 {
2398         my ($self, $e, $varname) = @_;
2399
2400         $typefamily{$e->{TYPE}}->{PRINT_FN_BODY}->($self, $e, $e->{NAME}, $varname);
2401 }
2402
2403 sub ParseTypePrintFunction($$$)
2404 {
2405         my ($self, $e, $varname) = @_;
2406         my $args = $typefamily{$e->{TYPE}}->{DECL}->($e, "print", $e->{NAME}, $varname);
2407
2408         $self->pidl_hdr("void ".TypeFunctionName("ndr_print", $e)."(struct ndr_print *ndr, const char *name, $args);");
2409
2410         return if (has_property($e, "noprint"));
2411
2412         $self->pidl("_PUBLIC_ void ".TypeFunctionName("ndr_print", $e)."(struct ndr_print *ndr, const char *name, $args)");
2413         $self->pidl("{");
2414         $self->indent;
2415         $self->ParseTypePrint($e, $varname);
2416         $self->deindent;
2417         $self->pidl("}");
2418         $self->pidl("");
2419 }
2420
2421 sub ParseTypeNdrSize($$)
2422 {
2423         my ($self,$t) = @_;
2424
2425         my $varname = "r";
2426         my $tf = $typefamily{$t->{TYPE}};
2427         my $args = $tf->{SIZE_FN_ARGS}->($t, $t->{NAME}, $varname);
2428
2429         $self->fn_declare("size", $t, "size_t ndr_size_$t->{NAME}($args)") or return;
2430
2431         $self->pidl("{");
2432         $self->indent;
2433         $typefamily{$t->{TYPE}}->{SIZE_FN_BODY}->($self,$t, $t->{NAME}, $varname);
2434         $self->deindent;
2435         $self->pidl("}");
2436         $self->pidl("");
2437 }
2438
2439 #####################################################################
2440 # parse the interface definitions
2441 sub ParseInterface($$$)
2442 {
2443         my($self,$interface,$needed) = @_;
2444
2445         $self->pidl_hdr("#ifndef _HEADER_NDR_$interface->{NAME}");
2446         $self->pidl_hdr("#define _HEADER_NDR_$interface->{NAME}");
2447
2448         $self->pidl_hdr("");
2449
2450         $self->HeaderInterface($interface, $needed);
2451
2452         # Typedefs
2453         foreach my $d (@{$interface->{TYPES}}) {
2454                 next unless(typeHasBody($d));
2455
2456                 ($needed->{TypeFunctionName("ndr_push", $d)}) && $self->ParseTypePushFunction($d, "r");
2457                 ($needed->{TypeFunctionName("ndr_pull", $d)}) && $self->ParseTypePullFunction($d, "r");
2458                 ($needed->{TypeFunctionName("ndr_print", $d)}) && $self->ParseTypePrintFunction($d, "r");
2459
2460                 # Make sure we don't generate a function twice...
2461                 $needed->{TypeFunctionName("ndr_push", $d)} =
2462                     $needed->{TypeFunctionName("ndr_pull", $d)} =
2463                         $needed->{TypeFunctionName("ndr_print", $d)} = 0;
2464
2465                 ($needed->{"ndr_size_$d->{NAME}"}) && $self->ParseTypeNdrSize($d);
2466         }
2467
2468         # Functions
2469         foreach my $d (@{$interface->{FUNCTIONS}}) {
2470                 ($needed->{"ndr_push_$d->{NAME}"}) && $self->ParseFunctionPush($d);
2471                 ($needed->{"ndr_pull_$d->{NAME}"}) && $self->ParseFunctionPull($d);
2472                 ($needed->{"ndr_print_$d->{NAME}"}) && $self->ParseFunctionPrint($d);
2473
2474                 # Make sure we don't generate a function twice...
2475                 $needed->{"ndr_push_$d->{NAME}"} = $needed->{"ndr_pull_$d->{NAME}"} =
2476                         $needed->{"ndr_print_$d->{NAME}"} = 0;
2477         }
2478
2479         $self->FunctionTable($interface);
2480
2481         $self->pidl_hdr("#endif /* _HEADER_NDR_$interface->{NAME} */");
2482 }
2483
2484 sub GenerateIncludes($)
2485 {
2486         my ($self) = @_;
2487         if (is_intree()) {
2488                 $self->pidl("#include \"includes.h\"");
2489         } else {
2490                 $self->pidl("#define _GNU_SOURCE");
2491                 $self->pidl("#include <stdint.h>");
2492                 $self->pidl("#include <stdlib.h>");
2493                 $self->pidl("#include <stdio.h>");
2494                 $self->pidl("#include <stdbool.h>");
2495                 $self->pidl("#include <stdarg.h>");
2496                 $self->pidl("#include <string.h>");
2497         }
2498 }
2499
2500 #####################################################################
2501 # parse a parsed IDL structure back into an IDL file
2502 sub Parse($$$$)
2503 {
2504         my($self, $ndr,$gen_header,$ndr_header) = @_;
2505
2506         $self->pidl_hdr("/* header auto-generated by pidl */");
2507         $self->pidl_hdr("");
2508         $self->pidl_hdr(choose_header("librpc/ndr/libndr.h", "ndr.h"));
2509         $self->pidl_hdr("#include \"$gen_header\"") if ($gen_header);
2510         $self->pidl_hdr("");
2511
2512         $self->pidl("/* parser auto-generated by pidl */");
2513         $self->pidl("");
2514         $self->GenerateIncludes();
2515         $self->pidl("#include \"$ndr_header\"") if ($ndr_header);
2516         $self->pidl("");
2517
2518         my %needed = ();
2519
2520         foreach (@{$ndr}) {
2521                 ($_->{TYPE} eq "INTERFACE") && NeededInterface($_, \%needed);
2522         }
2523
2524         foreach (@{$ndr}) {
2525                 ($_->{TYPE} eq "INTERFACE") && $self->ParseInterface($_, \%needed);
2526                 ($_->{TYPE} eq "IMPORT") && $self->HeaderImport(@{$_->{PATHS}});
2527                 ($_->{TYPE} eq "INCLUDE") && $self->HeaderInclude(@{$_->{PATHS}});
2528         }
2529
2530         return ($self->{res_hdr}, $self->{res});
2531 }
2532
2533 sub NeededElement($$$)
2534 {
2535         my ($e, $dir, $needed) = @_;
2536
2537         return if ($e->{TYPE} eq "EMPTY");
2538
2539         return if (ref($e->{TYPE}) eq "HASH" and
2540                        not defined($e->{TYPE}->{NAME}));
2541
2542         my ($t, $rt);
2543         if (ref($e->{TYPE}) eq "HASH") {
2544                 $t = $e->{TYPE}->{TYPE}."_".$e->{TYPE}->{NAME};
2545         } else {
2546                 $t = $e->{TYPE};
2547         }
2548
2549         if (ref($e->{REPRESENTATION_TYPE}) eq "HASH") {
2550                 $rt = $e->{REPRESENTATION_TYPE}->{TYPE}."_".$e->{REPRESENTATION_TYPE}->{NAME};
2551         } else {
2552                 $rt = $e->{REPRESENTATION_TYPE};
2553         }
2554
2555         die ("$e->{NAME} $t, $rt FOO") unless ($rt ne "");
2556
2557         my @fn = ();
2558         if ($dir eq "print") {
2559                 push(@fn, TypeFunctionName("ndr_print", $e->{REPRESENTATION_TYPE}));
2560         } elsif ($dir eq "pull") {
2561                 push (@fn, TypeFunctionName("ndr_pull", $e->{TYPE}));
2562                 push (@fn, "ndr_$t\_to_$rt")
2563                         if ($rt ne $t);
2564         } elsif ($dir eq "push") {
2565                 push (@fn, TypeFunctionName("ndr_push", $e->{TYPE}));
2566                 push (@fn, "ndr_$rt\_to_$t")
2567                         if ($rt ne $t);
2568         } else {
2569                 die("invalid direction `$dir'");
2570         }
2571
2572         foreach (@fn) {
2573                 unless (defined($needed->{$_})) {
2574                         $needed->{$_} = 1;
2575                 }
2576         }
2577 }
2578
2579 sub NeededFunction($$)
2580 {
2581         my ($fn,$needed) = @_;
2582         $needed->{"ndr_pull_$fn->{NAME}"} = 1;
2583         $needed->{"ndr_push_$fn->{NAME}"} = 1;
2584         $needed->{"ndr_print_$fn->{NAME}"} = 1;
2585         foreach my $e (@{$fn->{ELEMENTS}}) {
2586                 $e->{PARENT} = $fn;
2587                 NeededElement($e, $_, $needed) foreach ("pull", "push", "print");
2588         }
2589 }
2590
2591 sub NeededType($$$)
2592 {
2593         sub NeededType($$$);
2594         my ($t,$needed,$req) = @_;
2595
2596         NeededType($t->{DATA}, $needed, $req) if ($t->{TYPE} eq "TYPEDEF");
2597
2598         if ($t->{TYPE} eq "STRUCT" or $t->{TYPE} eq "UNION") {
2599                 return unless defined($t->{ELEMENTS});
2600                 for my $e (@{$t->{ELEMENTS}}) {
2601                         $e->{PARENT} = $t;
2602                         if (has_property($e, "compression")) {
2603                                 $needed->{"compression"} = 1;
2604                         }
2605                         NeededElement($e, $req, $needed);
2606                         NeededType($e->{TYPE}, $needed, $req) if (ref($e->{TYPE}) eq "HASH");
2607                 }
2608         }
2609 }
2610
2611 #####################################################################
2612 # work out what parse functions are needed
2613 sub NeededInterface($$)
2614 {
2615         my ($interface,$needed) = @_;
2616         NeededFunction($_, $needed) foreach (@{$interface->{FUNCTIONS}});
2617         foreach (reverse @{$interface->{TYPES}}) {
2618                 if (has_property($_, "public")) {
2619                         $needed->{TypeFunctionName("ndr_pull", $_)} = $needed->{TypeFunctionName("ndr_push", $_)} =
2620                                 $needed->{TypeFunctionName("ndr_print", $_)} = 1;
2621                 }
2622
2623                 NeededType($_, $needed, "pull") if ($needed->{TypeFunctionName("ndr_pull", $_)});
2624                 NeededType($_, $needed, "push") if ($needed->{TypeFunctionName("ndr_push", $_)});
2625                 NeededType($_, $needed, "print") if ($needed->{TypeFunctionName("ndr_print", $_)});
2626                 if (has_property($_, "gensize")) {
2627                         $needed->{"ndr_size_$_->{NAME}"} = 1;
2628                 }
2629         }
2630 }
2631
2632 sub TypeFunctionName($$)
2633 {
2634         my ($prefix, $t) = @_;
2635
2636         return "$prefix\_$t->{NAME}" if (ref($t) eq "HASH" and
2637                         $t->{TYPE} eq "TYPEDEF");
2638         return "$prefix\_$t->{TYPE}_$t->{NAME}" if (ref($t) eq "HASH");
2639         return "$prefix\_$t";
2640 }
2641
2642 1;