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 = qw(is_charset_array);
  13 @EXPORT_OK = qw(check_null_pointer GenerateFunctionInEnv
  14    GenerateFunctionOutEnv EnvSubstituteValue GenerateStructEnv NeededFunction
  15    NeededElement NeededType);
  16
  17 use strict;
  18 use Parse::Pidl::Typelist qw(hasType getType mapTypeName);
  19 use Parse::Pidl::Util qw(has_property ParseExpr ParseExprExt print_uuid);
  20 use Parse::Pidl::NDR qw(GetPrevLevel GetNextLevel ContainsDeferred);
  21 use Parse::Pidl::Samba4 qw(is_intree choose_header);
  22 use Parse::Pidl qw(warning);
  23
  24 use vars qw($VERSION);
  25 $VERSION = '0.01';
  26
  27 # list of known types
  28 my %typefamily;
  29
  30 sub get_typefamily($)
  31 {
  32         my $n = shift;
  33         return $typefamily{$n};
  34 }
  35
  36 sub append_prefix($$)
  37 {
  38         my ($e, $var_name) = @_;
  39         my $pointers = 0;
  40
  41         foreach my $l (@{$e->{LEVELS}}) {
  42                 if ($l->{TYPE} eq "POINTER") {
  43                         $pointers++;
  44                 } elsif ($l->{TYPE} eq "ARRAY") {
  45                         if (($pointers == 0) and
  46                             (not $l->{IS_FIXED}) and
  47                             (not $l->{IS_INLINE})) {
  48                                 return get_value_of($var_name);
  49                         }
  50                 } elsif ($l->{TYPE} eq "DATA") {
  51                         if (Parse::Pidl::Typelist::scalar_is_reference($l->{DATA_TYPE})) {
  52                                 return get_value_of($var_name) unless ($pointers);
  53                         }
  54                 }
  55         }
  56
  57         return $var_name;
  58 }
  59
  60 sub has_fast_array($$)
  61 {
  62         my ($e,$l) = @_;
  63
  64         return 0 if ($l->{TYPE} ne "ARRAY");
  65
  66         my $nl = GetNextLevel($e,$l);
  67         return 0 unless ($nl->{TYPE} eq "DATA");
  68         return 0 unless (hasType($nl->{DATA_TYPE}));
  69
  70         my $t = getType($nl->{DATA_TYPE});
  71
  72         # Only uint8 and string have fast array functions at the moment
  73         return ($t->{NAME} eq "uint8") or ($t->{NAME} eq "string");
  74 }
  75
  76 sub is_charset_array($$)
  77 {
  78         my ($e,$l) = @_;
  79
  80         return 0 if ($l->{TYPE} ne "ARRAY");
  81
  82         my $nl = GetNextLevel($e,$l);
  83
  84         return 0 unless ($nl->{TYPE} eq "DATA");
  85
  86         return has_property($e, "charset");
  87 }
  88
  89 sub get_pointer_to($)
  90 {
  91         my $var_name = shift;
  92
  93         if ($var_name =~ /^\*(.*)$/) {
  94                 return $1;
  95         } elsif ($var_name =~ /^\&(.*)$/) {
  96                 return "&($var_name)";
  97         } else {
  98                 return "&$var_name";
  99         }
 100 }
 101
 102 sub get_value_of($)
 103 {
 104         my $var_name = shift;
 105
 106         if ($var_name =~ /^\&(.*)$/) {
 107                 return $1;
 108         } else {
 109                 return "*$var_name";
 110         }
 111 }
 112
 113 my $res;
 114 my $deferred = [];
 115 my $tabs = "";
 116
 117 ####################################
 118 # pidl() is our basic output routine
 119 sub pidl($)
 120 {
 121         my $d = shift;
 122         if ($d) {
 123                 $res .= $tabs;
 124                 $res .= $d;
 125         }
 126         $res .="\n";
 127 }
 128
 129 my $res_hdr;
 130
 131 sub pidl_hdr ($) { my $d = shift; $res_hdr .= "$d\n"; }
 132
 133 ####################################
 134 # defer() is like pidl(), but adds to
 135 # a deferred buffer which is then added to the
 136 # output buffer at the end of the structure/union/function
 137 # This is needed to cope with code that must be pushed back
 138 # to the end of a block of elements
 139 my $defer_tabs = "";
 140 sub defer_indent() { $defer_tabs.="\t"; }
 141 sub defer_deindent() { $defer_tabs=substr($defer_tabs, 0, -1); }
 142
 143 sub defer($)
 144 {
 145         my $d = shift;
 146         if ($d) {
 147                 push(@$deferred, $defer_tabs.$d);
 148         }
 149 }
 150
 151 ########################################
 152 # add the deferred content to the current
 153 # output
 154 sub add_deferred()
 155 {
 156         pidl $_ foreach (@$deferred);
 157         $deferred = [];
 158         $defer_tabs = "";
 159 }
 160
 161 sub indent()
 162 {
 163         $tabs .= "\t";
 164 }
 165
 166 sub deindent()
 167 {
 168         $tabs = substr($tabs, 0, -1);
 169 }
 170
 171 #####################################################################
 172 # declare a function public or static, depending on its attributes
 173 sub fn_declare($$$)
 174 {
 175         my ($type,$fn,$decl) = @_;
 176
 177         if (has_property($fn, "no$type")) {
 178                 pidl_hdr "$decl;";
 179                 return 0;
 180         }
 181
 182         if (has_property($fn, "public")) {
 183                 pidl_hdr "$decl;";
 184                 pidl "_PUBLIC_ $decl";
 185         } else {
 186                 pidl "static $decl";
 187         }
 188
 189         return 1;
 190 }
 191
 192 ###################################################################
 193 # setup any special flags for an element or structure
 194 sub start_flags($)
 195 {
 196         my $e = shift;
 197         my $flags = has_property($e, "flag");
 198         if (defined $flags) {
 199                 pidl "{";
 200                 indent;
 201                 pidl "uint32_t _flags_save_$e->{TYPE} = ndr->flags;";
 202                 pidl "ndr_set_flags(&ndr->flags, $flags);";
 203         }
 204 }
 205
 206 ###################################################################
 207 # end any special flags for an element or structure
 208 sub end_flags($)
 209 {
 210         my $e = shift;
 211         my $flags = has_property($e, "flag");
 212         if (defined $flags) {
 213                 pidl "ndr->flags = _flags_save_$e->{TYPE};";
 214                 deindent;
 215                 pidl "}";
 216         }
 217 }
 218
 219 sub GenerateStructEnv($$)
 220 {
 221         my ($x, $v) = @_;
 222         my %env;
 223
 224         foreach my $e (@{$x->{ELEMENTS}}) {
 225                 $env{$e->{NAME}} = "$v->$e->{NAME}";
 226         }
 227
 228         $env{"this"} = $v;
 229
 230         return \%env;
 231 }
 232
 233 sub EnvSubstituteValue($$)
 234 {
 235         my ($env,$s) = @_;
 236
 237         # Substitute the value() values in the env
 238         foreach my $e (@{$s->{ELEMENTS}}) {
 239                 next unless (defined(my $v = has_property($e, "value")));
 240
 241                 $env->{$e->{NAME}} = ParseExpr($v, $env, $e);
 242         }
 243
 244         return $env;
 245 }
 246
 247 sub GenerateFunctionInEnv($)
 248 {
 249         my $fn = shift;
 250         my %env;
 251
 252         foreach my $e (@{$fn->{ELEMENTS}}) {
 253                 if (grep (/in/, @{$e->{DIRECTION}})) {
 254                         $env{$e->{NAME}} = "r->in.$e->{NAME}";
 255                 }
 256         }
 257
 258         return \%env;
 259 }
 260
 261 sub GenerateFunctionOutEnv($)
 262 {
 263         my $fn = shift;
 264         my %env;
 265
 266         foreach my $e (@{$fn->{ELEMENTS}}) {
 267                 if (grep (/out/, @{$e->{DIRECTION}})) {
 268                         $env{$e->{NAME}} = "r->out.$e->{NAME}";
 269                 } elsif (grep (/in/, @{$e->{DIRECTION}})) {
 270                         $env{$e->{NAME}} = "r->in.$e->{NAME}";
 271                 }
 272         }
 273
 274         return \%env;
 275 }
 276
 277 #####################################################################
 278 # parse the data of an array - push side
 279 sub ParseArrayPushHeader($$$$$)
 280 {
 281         my ($e,$l,$ndr,$var_name,$env) = @_;
 282
 283         my $size;
 284         my $length;
 285
 286         if ($l->{IS_ZERO_TERMINATED}) {
 287                 if (has_property($e, "charset")) {
 288                         $size = $length = "ndr_charset_length($var_name, CH_$e->{PROPERTIES}->{charset})";
 289                 } else {
 290                         $size = $length = "ndr_string_length($var_name, sizeof(*$var_name))";
 291                 }
 292         } else {
 293                 $size = ParseExpr($l->{SIZE_IS}, $env, $e);
 294                 $length = ParseExpr($l->{LENGTH_IS}, $env, $e);
 295         }
 296
 297         if ((!$l->{IS_SURROUNDING}) and $l->{IS_CONFORMANT}) {
 298                 pidl "NDR_CHECK(ndr_push_uint32($ndr, NDR_SCALARS, $size));";
 299         }
 300
 301         if ($l->{IS_VARYING}) {
 302                 pidl "NDR_CHECK(ndr_push_uint32($ndr, NDR_SCALARS, 0));";  # array offset
 303                 pidl "NDR_CHECK(ndr_push_uint32($ndr, NDR_SCALARS, $length));";
 304         }
 305
 306         return $length;
 307 }
 308
 309 sub check_fully_dereferenced($$)
 310 {
 311         my ($element, $env) = @_;
 312
 313         return sub ($) {
 314                 my $origvar = shift;
 315                 my $check = 0;
 316
 317                 # Figure out the number of pointers in $ptr
 318                 my $expandedvar = $origvar;
 319                 $expandedvar =~ s/^(\**)//;
 320                 my $ptr = $1;
 321
 322                 my $var = undef;
 323                 foreach (keys %$env) {
 324                         if ($env->{$_} eq $expandedvar) {
 325                                 $var = $_;
 326                                 last;
 327                         }
 328                 }
 329
 330                 return($origvar) unless (defined($var));
 331                 my $e;
 332                 foreach (@{$element->{PARENT}->{ELEMENTS}}) {
 333                         if ($_->{NAME} eq $var) {
 334                                 $e = $_;
 335                                 last;
 336                         }
 337                 }
 338
 339                 $e or die("Environment doesn't match siblings");
 340
 341                 # See if pointer at pointer level $level
 342                 # needs to be checked.
 343                 my $nump = 0;
 344                 foreach (@{$e->{LEVELS}}) {
 345                         if ($_->{TYPE} eq "POINTER") {
 346                                 $nump = $_->{POINTER_INDEX}+1;
 347                         }
 348                 }
 349                 warning($element->{ORIGINAL}, "Got pointer for `$e->{NAME}', expected fully derefenced variable") if ($nump > length($ptr));
 350                 return ($origvar);
 351         }
 352 }
 353
 354 sub check_null_pointer($$$$)
 355 {
 356         my ($element, $env, $print_fn, $return) = @_;
 357
 358         return sub ($) {
 359                 my $expandedvar = shift;
 360                 my $check = 0;
 361
 362                 # Figure out the number of pointers in $ptr
 363                 $expandedvar =~ s/^(\**)//;
 364                 my $ptr = $1;
 365
 366                 my $var = undef;
 367                 foreach (keys %$env) {
 368                         if ($env->{$_} eq $expandedvar) {
 369                                 $var = $_;
 370                                 last;
 371                         }
 372                 }
 373
 374                 if (defined($var)) {
 375                         my $e;
 376                         # lookup ptr in $e
 377                         foreach (@{$element->{PARENT}->{ELEMENTS}}) {
 378                                 if ($_->{NAME} eq $var) {
 379                                         $e = $_;
 380                                         last;
 381                                 }
 382                         }
 383
 384                         $e or die("Environment doesn't match siblings");
 385
 386                         # See if pointer at pointer level $level
 387                         # needs to be checked.
 388                         foreach my $l (@{$e->{LEVELS}}) {
 389                                 if ($l->{TYPE} eq "POINTER" and
 390                                         $l->{POINTER_INDEX} == length($ptr)) {
 391                                         # No need to check ref pointers
 392                                         $check = ($l->{POINTER_TYPE} ne "ref");
 393                                         last;
 394                                 }
 395
 396                                 if ($l->{TYPE} eq "DATA") {
 397                                         warning($element, "too much dereferences for `$var'");
 398                                 }
 399                         }
 400                 } else {
 401                         warning($element, "unknown dereferenced expression `$expandedvar'");
 402                         $check = 1;
 403                 }
 404
 405                 $print_fn->("if ($ptr$expandedvar == NULL) $return") if $check;
 406         }
 407 }
 408
 409 #####################################################################
 410 # parse an array - pull side
 411 sub ParseArrayPullHeader($$$$$)
 412 {
 413         my ($e,$l,$ndr,$var_name,$env) = @_;
 414
 415         my $length;
 416         my $size;
 417
 418         if ($l->{IS_CONFORMANT}) {
 419                 $length = $size = "ndr_get_array_size($ndr, " . get_pointer_to($var_name) . ")";
 420         } elsif ($l->{IS_ZERO_TERMINATED}) { # Noheader arrays
 421                 $length = $size = "ndr_get_string_size($ndr, sizeof(*$var_name))";
 422         } else {
 423                 $length = $size = ParseExprExt($l->{SIZE_IS}, $env, $e->{ORIGINAL},
 424                     check_null_pointer($e, $env, \&pidl, "return NT_STATUS_INVALID_PARAMETER_MIX;"), check_fully_dereferenced($e, $env));
 425         }
 426
 427         if ((!$l->{IS_SURROUNDING}) and $l->{IS_CONFORMANT}) {
 428                 pidl "NDR_CHECK(ndr_pull_array_size(ndr, " . get_pointer_to($var_name) . "));";
 429         }
 430
 431         if ($l->{IS_VARYING}) {
 432                 pidl "NDR_CHECK(ndr_pull_array_length($ndr, " . get_pointer_to($var_name) . "));";
 433                 $length = "ndr_get_array_length($ndr, " . get_pointer_to($var_name) .")";
 434         }
 435
 436         if ($length ne $size) {
 437                 pidl "if ($length > $size) {";
 438                 indent;
 439                 pidl "return ndr_pull_error($ndr, NDR_ERR_ARRAY_SIZE, \"Bad array size %u should exceed array length %u\", $size, $length);";
 440                 deindent;
 441                 pidl "}";
 442         }
 443
 444         if ($l->{IS_CONFORMANT} and not $l->{IS_ZERO_TERMINATED}) {
 445                 defer "if ($var_name) {";
 446                 defer_indent;
 447                 my $size = ParseExprExt($l->{SIZE_IS}, $env, $e->{ORIGINAL}, check_null_pointer($e, $env, \&defer, "return NT_STATUS_INVALID_PARAMETER_MIX;"), check_fully_dereferenced($e, $env));
 448                 defer "NDR_CHECK(ndr_check_array_size(ndr, (void*)" . get_pointer_to($var_name) . ", $size));";
 449                 defer_deindent;
 450                 defer "}";
 451         }
 452
 453         if ($l->{IS_VARYING} and not $l->{IS_ZERO_TERMINATED}) {
 454                 defer "if ($var_name) {";
 455                 defer_indent;
 456                 my $length = ParseExprExt($l->{LENGTH_IS}, $env, $e->{ORIGINAL},
 457                         check_null_pointer($e, $env, \&defer, "return NT_STATUS_INVALID_PARAMETER_MIX;"),
 458                         check_fully_dereferenced($e, $env));
 459                 defer "NDR_CHECK(ndr_check_array_length(ndr, (void*)" . get_pointer_to($var_name) . ", $length));";
 460                 defer_deindent;
 461                 defer "}"
 462         }
 463
 464         if (not $l->{IS_FIXED} and not is_charset_array($e, $l)) {
 465                 AllocateArrayLevel($e,$l,$ndr,$env,$size);
 466         }
 467
 468         return $length;
 469 }
 470
 471 sub compression_alg($$)
 472 {
 473         my ($e, $l) = @_;
 474         my ($alg, $clen, $dlen) = split(/ /, $l->{COMPRESSION});
 475
 476         return $alg;
 477 }
 478
 479 sub compression_clen($$$)
 480 {
 481         my ($e, $l, $env) = @_;
 482         my ($alg, $clen, $dlen) = split(/ /, $l->{COMPRESSION});
 483
 484         return ParseExpr($clen, $env, $e->{ORIGINAL});
 485 }
 486
 487 sub compression_dlen($$$)
 488 {
 489         my ($e,$l,$env) = @_;
 490         my ($alg, $clen, $dlen) = split(/ /, $l->{COMPRESSION});
 491
 492         return ParseExpr($dlen, $env, $e->{ORIGINAL});
 493 }
 494
 495 sub ParseCompressionPushStart($$$$)
 496 {
 497         my ($e,$l,$ndr,$env) = @_;
 498         my $comndr = "$ndr\_compressed";
 499         my $alg = compression_alg($e, $l);
 500         my $dlen = compression_dlen($e, $l, $env);
 501
 502         pidl "{";
 503         indent;
 504         pidl "struct ndr_push *$comndr;";
 505         pidl "NDR_CHECK(ndr_push_compression_start($ndr, &$comndr, $alg, $dlen));";
 506
 507         return $comndr;
 508 }
 509
 510 sub ParseCompressionPushEnd($$$$)
 511 {
 512         my ($e,$l,$ndr,$env) = @_;
 513         my $comndr = "$ndr\_compressed";
 514         my $alg = compression_alg($e, $l);
 515         my $dlen = compression_dlen($e, $l, $env);
 516
 517         pidl "NDR_CHECK(ndr_push_compression_end($ndr, $comndr, $alg, $dlen));";
 518         deindent;
 519         pidl "}";
 520 }
 521
 522 sub ParseCompressionPullStart($$$$)
 523 {
 524         my ($e,$l,$ndr,$env) = @_;
 525         my $comndr = "$ndr\_compressed";
 526         my $alg = compression_alg($e, $l);
 527         my $dlen = compression_dlen($e, $l, $env);
 528
 529         pidl "{";
 530         indent;
 531         pidl "struct ndr_pull *$comndr;";
 532         pidl "NDR_CHECK(ndr_pull_compression_start($ndr, &$comndr, $alg, $dlen));";
 533
 534         return $comndr;
 535 }
 536
 537 sub ParseCompressionPullEnd($$$$)
 538 {
 539         my ($e,$l,$ndr,$env) = @_;
 540         my $comndr = "$ndr\_compressed";
 541         my $alg = compression_alg($e, $l);
 542         my $dlen = compression_dlen($e, $l, $env);
 543
 544         pidl "NDR_CHECK(ndr_pull_compression_end($ndr, $comndr, $alg, $dlen));";
 545         deindent;
 546         pidl "}";
 547 }
 548
 549 sub ParseSubcontextPushStart($$$$)
 550 {
 551         my ($e,$l,$ndr,$env) = @_;
 552         my $subndr = "_ndr_$e->{NAME}";
 553         my $subcontext_size = ParseExpr($l->{SUBCONTEXT_SIZE}, $env, $e->{ORIGINAL});
 554
 555         pidl "{";
 556         indent;
 557         pidl "struct ndr_push *$subndr;";
 558         pidl "NDR_CHECK(ndr_push_subcontext_start($ndr, &$subndr, $l->{HEADER_SIZE}, $subcontext_size));";
 559
 560         if (defined $l->{COMPRESSION}) {
 561                 $subndr = ParseCompressionPushStart($e, $l, $subndr, $env);
 562         }
 563
 564         return $subndr;
 565 }
 566
 567 sub ParseSubcontextPushEnd($$$$)
 568 {
 569         my ($e,$l,$ndr,$env) = @_;
 570         my $subndr = "_ndr_$e->{NAME}";
 571         my $subcontext_size = ParseExpr($l->{SUBCONTEXT_SIZE}, $env, $e->{ORIGINAL});
 572
 573         if (defined $l->{COMPRESSION}) {
 574                 ParseCompressionPushEnd($e, $l, $subndr, $env);
 575         }
 576
 577         pidl "NDR_CHECK(ndr_push_subcontext_end($ndr, $subndr, $l->{HEADER_SIZE}, $subcontext_size));";
 578         deindent;
 579         pidl "}";
 580 }
 581
 582 sub ParseSubcontextPullStart($$$$)
 583 {
 584         my ($e,$l,$ndr,$env) = @_;
 585         my $subndr = "_ndr_$e->{NAME}";
 586         my $subcontext_size = ParseExpr($l->{SUBCONTEXT_SIZE}, $env, $e->{ORIGINAL});
 587
 588         pidl "{";
 589         indent;
 590         pidl "struct ndr_pull *$subndr;";
 591         pidl "NDR_CHECK(ndr_pull_subcontext_start($ndr, &$subndr, $l->{HEADER_SIZE}, $subcontext_size));";
 592
 593         if (defined $l->{COMPRESSION}) {
 594                 $subndr = ParseCompressionPullStart($e, $l, $subndr, $env);
 595         }
 596
 597         return $subndr;
 598 }
 599
 600 sub ParseSubcontextPullEnd($$$$)
 601 {
 602         my ($e,$l,$ndr,$env) = @_;
 603         my $subndr = "_ndr_$e->{NAME}";
 604         my $subcontext_size = ParseExpr($l->{SUBCONTEXT_SIZE}, $env, $e->{ORIGINAL});
 605
 606         if (defined $l->{COMPRESSION}) {
 607                 ParseCompressionPullEnd($e, $l, $subndr, $env);
 608         }
 609
 610         pidl "NDR_CHECK(ndr_pull_subcontext_end($ndr, $subndr, $l->{HEADER_SIZE}, $subcontext_size));";
 611         deindent;
 612         pidl "}";
 613 }
 614
 615 sub ParseElementPushLevel
 616 {
 617         my ($e,$l,$ndr,$var_name,$env,$primitives,$deferred) = @_;
 618
 619         my $ndr_flags = CalcNdrFlags($l, $primitives, $deferred);
 620
 621         if ($l->{TYPE} eq "ARRAY" and ($l->{IS_CONFORMANT} or $l->{IS_VARYING})) {
 622                 $var_name = get_pointer_to($var_name);
 623         }
 624
 625         if (defined($ndr_flags)) {
 626                 if ($l->{TYPE} eq "SUBCONTEXT") {
 627                         my $subndr = ParseSubcontextPushStart($e, $l, $ndr, $env);
 628                         ParseElementPushLevel($e, GetNextLevel($e, $l), $subndr, $var_name, $env, 1, 1);
 629                         ParseSubcontextPushEnd($e, $l, $ndr, $env);
 630                 } elsif ($l->{TYPE} eq "POINTER") {
 631                         ParsePtrPush($e, $l, $var_name);
 632                 } elsif ($l->{TYPE} eq "ARRAY") {
 633                         my $length = ParseArrayPushHeader($e, $l, $ndr, $var_name, $env);
 634
 635                         my $nl = GetNextLevel($e, $l);
 636
 637                         # Allow speedups for arrays of scalar types
 638                         if (is_charset_array($e,$l)) {
 639                                 pidl "NDR_CHECK(ndr_push_charset($ndr, $ndr_flags, $var_name, $length, sizeof(" . mapTypeName($nl->{DATA_TYPE}) . "), CH_$e->{PROPERTIES}->{charset}));";
 640                                 return;
 641                         } elsif (has_fast_array($e,$l)) {
 642                                 pidl "NDR_CHECK(ndr_push_array_$nl->{DATA_TYPE}($ndr, $ndr_flags, $var_name, $length));";
 643                                 return;
 644                         }
 645                 } elsif ($l->{TYPE} eq "SWITCH") {
 646                         ParseSwitchPush($e, $l, $ndr, $var_name, $ndr_flags, $env);
 647                 } elsif ($l->{TYPE} eq "DATA") {
 648                         ParseDataPush($e, $l, $ndr, $var_name, $ndr_flags);
 649                 }
 650         }
 651
 652         if ($l->{TYPE} eq "POINTER" and $deferred) {
 653                 if ($l->{POINTER_TYPE} ne "ref") {
 654                         pidl "if ($var_name) {";
 655                         indent;
 656                         if ($l->{POINTER_TYPE} eq "relative") {
 657                                 pidl "NDR_CHECK(ndr_push_relative_ptr2(ndr, $var_name));";
 658                         }
 659                 }
 660                 $var_name = get_value_of($var_name);
 661                 ParseElementPushLevel($e, GetNextLevel($e, $l), $ndr, $var_name, $env, 1, 1);
 662
 663                 if ($l->{POINTER_TYPE} ne "ref") {
 664                         deindent;
 665                         pidl "}";
 666                 }
 667         } elsif ($l->{TYPE} eq "ARRAY" and not has_fast_array($e,$l) and
 668                 not is_charset_array($e, $l)) {
 669                 my $length = ParseExpr($l->{LENGTH_IS}, $env, $e->{ORIGINAL});
 670                 my $counter = "cntr_$e->{NAME}_$l->{LEVEL_INDEX}";
 671
 672                 $var_name = $var_name . "[$counter]";
 673
 674                 if (($primitives and not $l->{IS_DEFERRED}) or ($deferred and $l->{IS_DEFERRED})) {
 675                         pidl "for ($counter = 0; $counter < $length; $counter++) {";
 676                         indent;
 677                         ParseElementPushLevel($e, GetNextLevel($e, $l), $ndr, $var_name, $env, 1, 0);
 678                         deindent;
 679                         pidl "}";
 680                 }
 681
 682                 if ($deferred and ContainsDeferred($e, $l)) {
 683                         pidl "for ($counter = 0; $counter < $length; $counter++) {";
 684                         indent;
 685                         ParseElementPushLevel($e, GetNextLevel($e, $l), $ndr, $var_name, $env, 0, 1);
 686                         deindent;
 687                         pidl "}";
 688                 }
 689         } elsif ($l->{TYPE} eq "SWITCH") {
 690                 ParseElementPushLevel($e, GetNextLevel($e, $l), $ndr, $var_name, $env, $primitives, $deferred);
 691         }
 692 }
 693
 694 #####################################################################
 695 # parse scalars in a structure element
 696 sub ParseElementPush($$$$$)
 697 {
 698         my ($e,$ndr,$env,$primitives,$deferred) = @_;
 699         my $subndr = undef;
 700
 701         my $var_name = $env->{$e->{NAME}};
 702
 703         return unless $primitives or ($deferred and ContainsDeferred($e, $e->{LEVELS}[0]));
 704
 705         # Representation type is different from transmit_as
 706         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
 707                 pidl "{";
 708                 indent;
 709                 my $transmit_name = "_transmit_$e->{NAME}";
 710                 pidl mapTypeName($e->{TYPE}) ." $transmit_name;";
 711                 pidl "NDR_CHECK(ndr_$e->{REPRESENTATION_TYPE}_to_$e->{TYPE}($var_name, " . get_pointer_to($transmit_name) . "));";
 712                 $var_name = $transmit_name;
 713         }
 714
 715         $var_name = append_prefix($e, $var_name);
 716
 717         start_flags($e);
 718
 719         if (defined(my $value = has_property($e, "value"))) {
 720                 $var_name = ParseExpr($value, $env, $e->{ORIGINAL});
 721         }
 722
 723         ParseElementPushLevel($e, $e->{LEVELS}[0], $ndr, $var_name, $env, $primitives, $deferred);
 724
 725         end_flags($e);
 726
 727         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
 728                 deindent;
 729                 pidl "}";
 730         }
 731 }
 732
 733 #####################################################################
 734 # parse a pointer in a struct element or function
 735 sub ParsePtrPush($$$)
 736 {
 737         my ($e,$l,$var_name) = @_;
 738
 739         if ($l->{POINTER_TYPE} eq "ref") {
 740                 pidl "if ($var_name == NULL) return NT_STATUS_INVALID_PARAMETER_MIX;";
 741                 if ($l->{LEVEL} eq "EMBEDDED") {
 742                         pidl "NDR_CHECK(ndr_push_ref_ptr(ndr));";
 743                 }
 744         } elsif ($l->{POINTER_TYPE} eq "relative") {
 745                 pidl "NDR_CHECK(ndr_push_relative_ptr1(ndr, $var_name));";
 746         } elsif ($l->{POINTER_TYPE} eq "unique") {
 747                 pidl "NDR_CHECK(ndr_push_unique_ptr(ndr, $var_name));";
 748         } elsif ($l->{POINTER_TYPE} eq "full") {
 749                 pidl "NDR_CHECK(ndr_push_full_ptr(ndr, $var_name));";
 750         } else {
 751                 die("Unhandled pointer type $l->{POINTER_TYPE}");
 752         }
 753 }
 754
 755 #####################################################################
 756 # print scalars in a structure element
 757 sub ParseElementPrint($$$)
 758 {
 759         my($e, $var_name, $env) = @_;
 760
 761         return if (has_property($e, "noprint"));
 762
 763         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
 764                 pidl "ndr_print_$e->{REPRESENTATION_TYPE}(ndr, \"$e->{NAME}\", $var_name);";
 765                 return;
 766         }
 767
 768         $var_name = append_prefix($e, $var_name);
 769
 770         if (defined(my $value = has_property($e, "value"))) {
 771                 $var_name = "(ndr->flags & LIBNDR_PRINT_SET_VALUES)?" . ParseExpr($value,$env, $e->{ORIGINAL}) . ":$var_name";
 772         }
 773
 774         foreach my $l (@{$e->{LEVELS}}) {
 775                 if ($l->{TYPE} eq "POINTER") {
 776                         pidl "ndr_print_ptr(ndr, \"$e->{NAME}\", $var_name);";
 777                         pidl "ndr->depth++;";
 778                         if ($l->{POINTER_TYPE} ne "ref") {
 779                                 pidl "if ($var_name) {";
 780                                 indent;
 781                         }
 782                         $var_name = get_value_of($var_name);
 783                 } elsif ($l->{TYPE} eq "ARRAY") {
 784                         my $length;
 785
 786                         if ($l->{IS_CONFORMANT} or $l->{IS_VARYING}) {
 787                                 $var_name = get_pointer_to($var_name);
 788                         }
 789
 790                         if ($l->{IS_ZERO_TERMINATED}) {
 791                                 $length = "ndr_string_length($var_name, sizeof(*$var_name))";
 792                         } else {
 793                                 $length = ParseExprExt($l->{LENGTH_IS}, $env, $e->{ORIGINAL},
 794                                                         check_null_pointer($e, $env, \&pidl, "return;"), check_fully_dereferenced($e, $env));
 795                         }
 796
 797                         if (is_charset_array($e,$l)) {
 798                                 pidl "ndr_print_string(ndr, \"$e->{NAME}\", $var_name);";
 799                                 last;
 800                         } elsif (has_fast_array($e, $l)) {
 801                                 my $nl = GetNextLevel($e, $l);
 802                                 pidl "ndr_print_array_$nl->{DATA_TYPE}(ndr, \"$e->{NAME}\", $var_name, $length);";
 803                                 last;
 804                         } else {
 805                                 my $counter = "cntr_$e->{NAME}_$l->{LEVEL_INDEX}";
 806
 807                                 pidl "ndr->print(ndr, \"\%s: ARRAY(\%d)\", \"$e->{NAME}\", $length);";
 808                                 pidl 'ndr->depth++;';
 809                                 pidl "for ($counter=0;$counter<$length;$counter++) {";
 810                                 indent;
 811                                 pidl "char *idx_$l->{LEVEL_INDEX}=NULL;";
 812                                 pidl "asprintf(&idx_$l->{LEVEL_INDEX}, \"[\%d]\", $counter);";
 813                                 pidl "if (idx_$l->{LEVEL_INDEX}) {";
 814                                 indent;
 815
 816                                 $var_name = $var_name . "[$counter]";
 817                         }
 818                 } elsif ($l->{TYPE} eq "DATA") {
 819                         if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE}) or Parse::Pidl::Typelist::scalar_is_reference($l->{DATA_TYPE})) {
 820                                 $var_name = get_pointer_to($var_name);
 821                         }
 822                         pidl "ndr_print_$l->{DATA_TYPE}(ndr, \"$e->{NAME}\", $var_name);";
 823                 } elsif ($l->{TYPE} eq "SWITCH") {
 824                         my $switch_var = ParseExprExt($l->{SWITCH_IS}, $env, $e->{ORIGINAL},
 825                                                 check_null_pointer($e, $env, \&pidl, "return;"), check_fully_dereferenced($e, $env));
 826                         pidl "ndr_print_set_switch_value(ndr, " . get_pointer_to($var_name) . ", $switch_var);";
 827                 }
 828         }
 829
 830         foreach my $l (reverse @{$e->{LEVELS}}) {
 831                 if ($l->{TYPE} eq "POINTER") {
 832                         if ($l->{POINTER_TYPE} ne "ref") {
 833                                 deindent;
 834                                 pidl "}";
 835                         }
 836                         pidl "ndr->depth--;";
 837                 } elsif (($l->{TYPE} eq "ARRAY")
 838                         and not is_charset_array($e,$l)
 839                         and not has_fast_array($e,$l)) {
 840                         pidl "free(idx_$l->{LEVEL_INDEX});";
 841                         deindent;
 842                         pidl "}";
 843                         deindent;
 844                         pidl "}";
 845                         pidl "ndr->depth--;";
 846                 }
 847         }
 848 }
 849
 850 #####################################################################
 851 # parse scalars in a structure element - pull size
 852 sub ParseSwitchPull($$$$$$)
 853 {
 854         my($e,$l,$ndr,$var_name,$ndr_flags,$env) = @_;
 855         my $switch_var = ParseExprExt($l->{SWITCH_IS}, $env, $e->{ORIGINAL},
 856                 check_null_pointer($e, $env, \&pidl, "return NT_STATUS_INVALID_PARAMETER_MIX;"), check_fully_dereferenced($e, $env));
 857
 858         $var_name = get_pointer_to($var_name);
 859         pidl "NDR_CHECK(ndr_pull_set_switch_value($ndr, $var_name, $switch_var));";
 860 }
 861
 862 #####################################################################
 863 # push switch element
 864 sub ParseSwitchPush($$$$$$)
 865 {
 866         my($e,$l,$ndr,$var_name,$ndr_flags,$env) = @_;
 867         my $switch_var = ParseExprExt($l->{SWITCH_IS}, $env, $e->{ORIGINAL},
 868                 check_null_pointer($e, $env, \&pidl, "return NT_STATUS_INVALID_PARAMETER_MIX;"), check_fully_dereferenced($e, $env));
 869
 870         $var_name = get_pointer_to($var_name);
 871         pidl "NDR_CHECK(ndr_push_set_switch_value($ndr, $var_name, $switch_var));";
 872 }
 873
 874 sub ParseDataPull($$$$$)
 875 {
 876         my ($e,$l,$ndr,$var_name,$ndr_flags) = @_;
 877
 878         if (Parse::Pidl::Typelist::scalar_is_reference($l->{DATA_TYPE})) {
 879                 $var_name = get_pointer_to($var_name);
 880         }
 881
 882         $var_name = get_pointer_to($var_name);
 883
 884         pidl "NDR_CHECK(ndr_pull_$l->{DATA_TYPE}($ndr, $ndr_flags, $var_name));";
 885
 886         if (my $range = has_property($e, "range")) {
 887                 $var_name = get_value_of($var_name);
 888                 my ($low, $high) = split(/ /, $range, 2);
 889                 pidl "if ($var_name < $low || $var_name > $high) {";
 890                 pidl "\treturn ndr_pull_error($ndr, NDR_ERR_RANGE, \"value out of range\");";
 891                 pidl "}";
 892         }
 893 }
 894
 895 sub ParseDataPush($$$$$)
 896 {
 897         my ($e,$l,$ndr,$var_name,$ndr_flags) = @_;
 898
 899         # strings are passed by value rather than reference
 900         if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE}) or Parse::Pidl::Typelist::scalar_is_reference($l->{DATA_TYPE})) {
 901                 $var_name = get_pointer_to($var_name);
 902         }
 903
 904         pidl "NDR_CHECK(ndr_push_$l->{DATA_TYPE}($ndr, $ndr_flags, $var_name));";
 905 }
 906
 907 sub CalcNdrFlags($$$)
 908 {
 909         my ($l,$primitives,$deferred) = @_;
 910
 911         my $scalars = 0;
 912         my $buffers = 0;
 913
 914         # Add NDR_SCALARS if this one is deferred
 915         # and deferreds may be pushed
 916         $scalars = 1 if ($l->{IS_DEFERRED} and $deferred);
 917
 918         # Add NDR_SCALARS if this one is not deferred and
 919         # primitives may be pushed
 920         $scalars = 1 if (!$l->{IS_DEFERRED} and $primitives);
 921
 922         # Add NDR_BUFFERS if this one contains deferred stuff
 923         # and deferreds may be pushed
 924         $buffers = 1 if ($l->{CONTAINS_DEFERRED} and $deferred);
 925
 926         return "NDR_SCALARS|NDR_BUFFERS" if ($scalars and $buffers);
 927         return "NDR_SCALARS" if ($scalars);
 928         return "NDR_BUFFERS" if ($buffers);
 929         return undef;
 930 }
 931
 932 sub ParseMemCtxPullStart($$$)
 933 {
 934         my ($e, $l, $ptr_name) = @_;
 935
 936         my $mem_r_ctx = "_mem_save_$e->{NAME}_$l->{LEVEL_INDEX}";
 937         my $mem_c_ctx = $ptr_name;
 938         my $mem_c_flags = "0";
 939
 940         return if ($l->{TYPE} eq "ARRAY" and $l->{IS_FIXED});
 941
 942         if (($l->{TYPE} eq "POINTER") and ($l->{POINTER_TYPE} eq "ref")) {
 943                 my $nl = GetNextLevel($e, $l);
 944                 my $next_is_array = ($nl->{TYPE} eq "ARRAY");
 945                 my $next_is_string = (($nl->{TYPE} eq "DATA") and
 946                                         ($nl->{DATA_TYPE} eq "string"));
 947                 if ($next_is_array or $next_is_string) {
 948                         return;
 949                 } else {
 950                         $mem_c_flags = "LIBNDR_FLAG_REF_ALLOC";
 951                 }
 952         }
 953
 954         pidl "$mem_r_ctx = NDR_PULL_GET_MEM_CTX(ndr);";
 955         pidl "NDR_PULL_SET_MEM_CTX(ndr, $mem_c_ctx, $mem_c_flags);";
 956 }
 957
 958 sub ParseMemCtxPullEnd($$)
 959 {
 960         my $e = shift;
 961         my $l = shift;
 962
 963         my $mem_r_ctx = "_mem_save_$e->{NAME}_$l->{LEVEL_INDEX}";
 964         my $mem_r_flags = "0";
 965
 966         return if ($l->{TYPE} eq "ARRAY" and $l->{IS_FIXED});
 967
 968         if (($l->{TYPE} eq "POINTER") and ($l->{POINTER_TYPE} eq "ref")) {
 969                 my $nl = GetNextLevel($e, $l);
 970                 my $next_is_array = ($nl->{TYPE} eq "ARRAY");
 971                 my $next_is_string = (($nl->{TYPE} eq "DATA") and
 972                                         ($nl->{DATA_TYPE} eq "string"));
 973                 if ($next_is_array or $next_is_string) {
 974                         return;
 975                 } else {
 976                         $mem_r_flags = "LIBNDR_FLAG_REF_ALLOC";
 977                 }
 978         }
 979
 980         pidl "NDR_PULL_SET_MEM_CTX(ndr, $mem_r_ctx, $mem_r_flags);";
 981 }
 982
 983 sub CheckStringTerminator($$$$)
 984 {
 985         my ($ndr,$e,$l,$length) = @_;
 986         my $nl = GetNextLevel($e, $l);
 987
 988         # Make sure last element is zero!
 989         pidl "NDR_CHECK(ndr_check_string_terminator($ndr, $length, sizeof($nl->{DATA_TYPE}_t)));";
 990 }
 991
 992 sub ParseElementPullLevel
 993 {
 994         my($e,$l,$ndr,$var_name,$env,$primitives,$deferred) = @_;
 995
 996         my $ndr_flags = CalcNdrFlags($l, $primitives, $deferred);
 997
 998         if ($l->{TYPE} eq "ARRAY" and ($l->{IS_VARYING} or $l->{IS_CONFORMANT})) {
 999                 $var_name = get_pointer_to($var_name);
1000         }
1001
1002         # Only pull something if there's actually something to be pulled
1003         if (defined($ndr_flags)) {
1004                 if ($l->{TYPE} eq "SUBCONTEXT") {
1005                         my $subndr = ParseSubcontextPullStart($e, $l, $ndr, $env);
1006                         ParseElementPullLevel($e, GetNextLevel($e,$l), $subndr, $var_name, $env, 1, 1);
1007                         ParseSubcontextPullEnd($e, $l, $ndr, $env);
1008                 } elsif ($l->{TYPE} eq "ARRAY") {
1009                         my $length = ParseArrayPullHeader($e, $l, $ndr, $var_name, $env);
1010
1011                         my $nl = GetNextLevel($e, $l);
1012
1013                         if (is_charset_array($e,$l)) {
1014                                 if ($l->{IS_ZERO_TERMINATED}) {
1015                                         CheckStringTerminator($ndr, $e, $l, $length);
1016                                 }
1017                                 pidl "NDR_CHECK(ndr_pull_charset($ndr, $ndr_flags, ".get_pointer_to($var_name).", $length, sizeof(" . mapTypeName($nl->{DATA_TYPE}) . "), CH_$e->{PROPERTIES}->{charset}));";
1018                                 return;
1019                         } elsif (has_fast_array($e, $l)) {
1020                                 if ($l->{IS_ZERO_TERMINATED}) {
1021                                         CheckStringTerminator($ndr,$e,$l,$length);
1022                                 }
1023                                 pidl "NDR_CHECK(ndr_pull_array_$nl->{DATA_TYPE}($ndr, $ndr_flags, $var_name, $length));";
1024                                 return;
1025                         }
1026                 } elsif ($l->{TYPE} eq "POINTER") {
1027                         ParsePtrPull($e, $l, $ndr, $var_name);
1028                 } elsif ($l->{TYPE} eq "SWITCH") {
1029                         ParseSwitchPull($e, $l, $ndr, $var_name, $ndr_flags, $env);
1030                 } elsif ($l->{TYPE} eq "DATA") {
1031                         ParseDataPull($e, $l, $ndr, $var_name, $ndr_flags);
1032                 }
1033         }
1034
1035         # add additional constructions
1036         if ($l->{TYPE} eq "POINTER" and $deferred) {
1037                 if ($l->{POINTER_TYPE} ne "ref") {
1038                         pidl "if ($var_name) {";
1039                         indent;
1040
1041                         if ($l->{POINTER_TYPE} eq "relative") {
1042                                 pidl "struct ndr_pull_save _relative_save;";
1043                                 pidl "ndr_pull_save(ndr, &_relative_save);";
1044                                 pidl "NDR_CHECK(ndr_pull_relative_ptr2(ndr, $var_name));";
1045                         }
1046                 }
1047
1048                 ParseMemCtxPullStart($e, $l, $var_name);
1049
1050                 $var_name = get_value_of($var_name);
1051                 ParseElementPullLevel($e, GetNextLevel($e,$l), $ndr, $var_name, $env, 1, 1);
1052
1053                 ParseMemCtxPullEnd($e,$l);
1054
1055                 if ($l->{POINTER_TYPE} ne "ref") {
1056                         if ($l->{POINTER_TYPE} eq "relative") {
1057                                 pidl "ndr_pull_restore(ndr, &_relative_save);";
1058                         }
1059                         deindent;
1060                         pidl "}";
1061                 }
1062         } elsif ($l->{TYPE} eq "ARRAY" and
1063                         not has_fast_array($e,$l) and not is_charset_array($e, $l)) {
1064                 my $length = ParseExpr($l->{LENGTH_IS}, $env, $e->{ORIGINAL});
1065                 my $counter = "cntr_$e->{NAME}_$l->{LEVEL_INDEX}";
1066                 my $array_name = $var_name;
1067
1068                 $var_name = $var_name . "[$counter]";
1069
1070                 ParseMemCtxPullStart($e, $l, $array_name);
1071
1072                 if (($primitives and not $l->{IS_DEFERRED}) or ($deferred and $l->{IS_DEFERRED})) {
1073                         my $nl = GetNextLevel($e,$l);
1074
1075                         if ($l->{IS_ZERO_TERMINATED}) {
1076                                 CheckStringTerminator($ndr,$e,$l,$length);
1077                         }
1078
1079                         pidl "for ($counter = 0; $counter < $length; $counter++) {";
1080                         indent;
1081                         ParseElementPullLevel($e, $nl, $ndr, $var_name, $env, 1, 0);
1082                         deindent;
1083                         pidl "}";
1084                 }
1085
1086                 if ($deferred and ContainsDeferred($e, $l)) {
1087                         pidl "for ($counter = 0; $counter < $length; $counter++) {";
1088                         indent;
1089                         ParseElementPullLevel($e,GetNextLevel($e,$l), $ndr, $var_name, $env, 0, 1);
1090                         deindent;
1091                         pidl "}";
1092                 }
1093
1094                 ParseMemCtxPullEnd($e, $l);
1095
1096         } elsif ($l->{TYPE} eq "SWITCH") {
1097                 ParseElementPullLevel($e, GetNextLevel($e,$l), $ndr, $var_name, $env, $primitives, $deferred);
1098         }
1099 }
1100
1101 #####################################################################
1102 # parse scalars in a structure element - pull size
1103 sub ParseElementPull($$$$$)
1104 {
1105         my($e,$ndr,$env,$primitives,$deferred) = @_;
1106
1107         my $var_name = $env->{$e->{NAME}};
1108         my $represent_name;
1109         my $transmit_name;
1110
1111         return unless $primitives or ($deferred and ContainsDeferred($e, $e->{LEVELS}[0]));
1112
1113         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
1114                 pidl "{";
1115                 indent;
1116                 $represent_name = $var_name;
1117                 $transmit_name = "_transmit_$e->{NAME}";
1118                 $var_name = $transmit_name;
1119                 pidl mapTypeName($e->{TYPE})." $var_name;";
1120         }
1121
1122         $var_name = append_prefix($e, $var_name);
1123
1124         start_flags($e);
1125
1126         ParseElementPullLevel($e,$e->{LEVELS}[0],$ndr,$var_name,$env,$primitives,$deferred);
1127
1128         end_flags($e);
1129
1130         # Representation type is different from transmit_as
1131         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
1132                 pidl "NDR_CHECK(ndr_$e->{TYPE}_to_$e->{REPRESENTATION_TYPE}($transmit_name, ".get_pointer_to($represent_name)."));";
1133                 deindent;
1134                 pidl "}";
1135         }
1136 }
1137
1138 #####################################################################
1139 # parse a pointer in a struct element or function
1140 sub ParsePtrPull($$$$)
1141 {
1142         my($e,$l,$ndr,$var_name) = @_;
1143
1144         my $nl = GetNextLevel($e, $l);
1145         my $next_is_array = ($nl->{TYPE} eq "ARRAY");
1146         my $next_is_string = (($nl->{TYPE} eq "DATA") and
1147                                                  ($nl->{DATA_TYPE} eq "string"));
1148
1149         if ($l->{POINTER_TYPE} eq "ref") {
1150                 if ($l->{LEVEL} eq "EMBEDDED") {
1151                         pidl "NDR_CHECK(ndr_pull_ref_ptr($ndr, &_ptr_$e->{NAME}));";
1152                 }
1153
1154                 if (!$next_is_array and !$next_is_string) {
1155                         pidl "if (ndr->flags & LIBNDR_FLAG_REF_ALLOC) {";
1156                         pidl "\tNDR_PULL_ALLOC($ndr, $var_name);";
1157                         pidl "}";
1158                 }
1159
1160                 return;
1161         } elsif (($l->{POINTER_TYPE} eq "unique") or
1162                  ($l->{POINTER_TYPE} eq "relative") or
1163                  ($l->{POINTER_TYPE} eq "full")) {
1164                 pidl "NDR_CHECK(ndr_pull_generic_ptr($ndr, &_ptr_$e->{NAME}));";
1165                 pidl "if (_ptr_$e->{NAME}) {";
1166                 indent;
1167         } else {
1168                 die("Unhandled pointer type $l->{POINTER_TYPE}");
1169         }
1170
1171         # Don't do this for arrays, they're allocated at the actual level
1172         # of the array
1173         unless ($next_is_array or $next_is_string) {
1174                 pidl "NDR_PULL_ALLOC($ndr, $var_name);";
1175         } else {
1176                 # FIXME: Yes, this is nasty.
1177                 # We allocate an array twice
1178                 # - once just to indicate that it's there,
1179                 # - then the real allocation...
1180                 pidl "NDR_PULL_ALLOC($ndr, $var_name);";
1181         }
1182
1183         #pidl "memset($var_name, 0, sizeof($var_name));";
1184         if ($l->{POINTER_TYPE} eq "relative") {
1185                 pidl "NDR_CHECK(ndr_pull_relative_ptr1($ndr, $var_name, _ptr_$e->{NAME}));";
1186         }
1187         deindent;
1188         pidl "} else {";
1189         pidl "\t$var_name = NULL;";
1190         pidl "}";
1191 }
1192
1193 #####################################################################
1194 # parse a struct
1195 sub ParseStructPush($$)
1196 {
1197         my($struct,$name) = @_;
1198
1199         return unless defined($struct->{ELEMENTS});
1200
1201         my $env = GenerateStructEnv($struct, "r");
1202
1203         EnvSubstituteValue($env, $struct);
1204
1205         # save the old relative_base_offset
1206         pidl "uint32_t _save_relative_base_offset = ndr_push_get_relative_base_offset(ndr);" if defined($struct->{PROPERTIES}{relative_base});
1207
1208         foreach my $e (@{$struct->{ELEMENTS}}) {
1209                 DeclareArrayVariables($e);
1210         }
1211
1212         start_flags($struct);
1213
1214         # see if the structure contains a conformant array. If it
1215         # does, then it must be the last element of the structure, and
1216         # we need to push the conformant length early, as it fits on
1217         # the wire before the structure (and even before the structure
1218         # alignment)
1219         if (defined($struct->{SURROUNDING_ELEMENT})) {
1220                 my $e = $struct->{SURROUNDING_ELEMENT};
1221
1222                 if (defined($e->{LEVELS}[0]) and
1223                         $e->{LEVELS}[0]->{TYPE} eq "ARRAY") {
1224                         my $size;
1225
1226                         if ($e->{LEVELS}[0]->{IS_ZERO_TERMINATED}) {
1227                                 if (has_property($e, "charset")) {
1228                                         $size = "ndr_charset_length(r->$e->{NAME}, CH_$e->{PROPERTIES}->{charset})";
1229                                 } else {
1230                                         $size = "ndr_string_length(r->$e->{NAME}, sizeof(*r->$e->{NAME}))";
1231                                 }
1232                         } else {
1233                                 $size = ParseExpr($e->{LEVELS}[0]->{SIZE_IS}, $env, $e->{ORIGINAL});
1234                         }
1235
1236                         pidl "NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, $size));";
1237                 } else {
1238                         pidl "NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, ndr_string_array_size(ndr, r->$e->{NAME})));";
1239                 }
1240         }
1241
1242         pidl "if (ndr_flags & NDR_SCALARS) {";
1243         indent;
1244
1245         pidl "NDR_CHECK(ndr_push_align(ndr, $struct->{ALIGN}));";
1246
1247         if (defined($struct->{PROPERTIES}{relative_base})) {
1248                 # set the current offset as base for relative pointers
1249                 # and store it based on the toplevel struct/union
1250                 pidl "NDR_CHECK(ndr_push_setup_relative_base_offset1(ndr, r, ndr->offset));";
1251         }
1252
1253         foreach my $e (@{$struct->{ELEMENTS}}) {
1254                 ParseElementPush($e, "ndr", $env, 1, 0);
1255         }
1256
1257         deindent;
1258         pidl "}";
1259
1260         pidl "if (ndr_flags & NDR_BUFFERS) {";
1261         indent;
1262         if (defined($struct->{PROPERTIES}{relative_base})) {
1263                 # retrieve the current offset as base for relative pointers
1264                 # based on the toplevel struct/union
1265                 pidl "NDR_CHECK(ndr_push_setup_relative_base_offset2(ndr, r));";
1266         }
1267         foreach my $e (@{$struct->{ELEMENTS}}) {
1268                 ParseElementPush($e, "ndr", $env, 0, 1);
1269         }
1270
1271         deindent;
1272         pidl "}";
1273
1274         end_flags($struct);
1275         # restore the old relative_base_offset
1276         pidl "ndr_push_restore_relative_base_offset(ndr, _save_relative_base_offset);" if defined($struct->{PROPERTIES}{relative_base});
1277 }
1278
1279 #####################################################################
1280 # generate a push function for an enum
1281 sub ParseEnumPush($$)
1282 {
1283         my($enum,$name) = @_;
1284         my($type_fn) = $enum->{BASE_TYPE};
1285
1286         start_flags($enum);
1287         pidl "NDR_CHECK(ndr_push_$type_fn(ndr, NDR_SCALARS, r));";
1288         end_flags($enum);
1289 }
1290
1291 #####################################################################
1292 # generate a pull function for an enum
1293 sub ParseEnumPull($$)
1294 {
1295         my($enum,$name) = @_;
1296         my($type_fn) = $enum->{BASE_TYPE};
1297         my($type_v_decl) = mapTypeName($type_fn);
1298
1299         pidl "$type_v_decl v;";
1300         start_flags($enum);
1301         pidl "NDR_CHECK(ndr_pull_$type_fn(ndr, NDR_SCALARS, &v));";
1302         pidl "*r = v;";
1303
1304         end_flags($enum);
1305 }
1306
1307 #####################################################################
1308 # generate a print function for an enum
1309 sub ParseEnumPrint($$)
1310 {
1311         my($enum,$name) = @_;
1312
1313         pidl "const char *val = NULL;";
1314         pidl "";
1315
1316         start_flags($enum);
1317
1318         pidl "switch (r) {";
1319         indent;
1320         my $els = \@{$enum->{ELEMENTS}};
1321         foreach my $i (0 .. $#{$els}) {
1322                 my $e = ${$els}[$i];
1323                 chomp $e;
1324                 if ($e =~ /^(.*)=/) {
1325                         $e = $1;
1326                 }
1327                 pidl "case $e: val = \"$e\"; break;";
1328         }
1329
1330         deindent;
1331         pidl "}";
1332
1333         pidl "ndr_print_enum(ndr, name, \"$enum->{TYPE}\", val, r);";
1334
1335         end_flags($enum);
1336 }
1337
1338 sub DeclEnum($$$)
1339 {
1340         my ($e,$t,$name) = @_;
1341         return "enum $name " .
1342                 ($t eq "pull"?"*":"") . "r";
1343 }
1344
1345 $typefamily{ENUM} = {
1346         DECL => \&DeclEnum,
1347         PUSH_FN_BODY => \&ParseEnumPush,
1348         PULL_FN_BODY => \&ParseEnumPull,
1349         PRINT_FN_BODY => \&ParseEnumPrint,
1350 };
1351
1352 #####################################################################
1353 # generate a push function for a bitmap
1354 sub ParseBitmapPush($$)
1355 {
1356         my($bitmap,$name) = @_;
1357         my($type_fn) = $bitmap->{BASE_TYPE};
1358
1359         start_flags($bitmap);
1360
1361         pidl "NDR_CHECK(ndr_push_$type_fn(ndr, NDR_SCALARS, r));";
1362
1363         end_flags($bitmap);
1364 }
1365
1366 #####################################################################
1367 # generate a pull function for an bitmap
1368 sub ParseBitmapPull($$)
1369 {
1370         my($bitmap,$name) = @_;
1371         my $type_fn = $bitmap->{BASE_TYPE};
1372         my($type_decl) = mapTypeName($bitmap->{BASE_TYPE});
1373
1374         pidl "$type_decl v;";
1375         start_flags($bitmap);
1376         pidl "NDR_CHECK(ndr_pull_$type_fn(ndr, NDR_SCALARS, &v));";
1377         pidl "*r = v;";
1378
1379         end_flags($bitmap);
1380 }
1381
1382 #####################################################################
1383 # generate a print function for an bitmap
1384 sub ParseBitmapPrintElement($$$)
1385 {
1386         my($e,$bitmap,$name) = @_;
1387         my($type_decl) = mapTypeName($bitmap->{BASE_TYPE});
1388         my($type_fn) = $bitmap->{BASE_TYPE};
1389         my($flag);
1390
1391         if ($e =~ /^(\w+) .*$/) {
1392                 $flag = "$1";
1393         } else {
1394                 die "Bitmap: \"$name\" invalid Flag: \"$e\"";
1395         }
1396
1397         pidl "ndr_print_bitmap_flag(ndr, sizeof($type_decl), \"$flag\", $flag, r);";
1398 }
1399
1400 #####################################################################
1401 # generate a print function for an bitmap
1402 sub ParseBitmapPrint($$)
1403 {
1404         my($bitmap,$name) = @_;
1405         my($type_decl) = mapTypeName($bitmap->{TYPE});
1406         my($type_fn) = $bitmap->{BASE_TYPE};
1407
1408         start_flags($bitmap);
1409
1410         pidl "ndr_print_$type_fn(ndr, name, r);";
1411
1412         pidl "ndr->depth++;";
1413         foreach my $e (@{$bitmap->{ELEMENTS}}) {
1414                 ParseBitmapPrintElement($e, $bitmap, $name);
1415         }
1416         pidl "ndr->depth--;";
1417
1418         end_flags($bitmap);
1419 }
1420
1421 sub DeclBitmap($$$)
1422 {
1423         my ($e,$t,$name) = @_;
1424         return mapTypeName(Parse::Pidl::Typelist::bitmap_type_fn($e)) .
1425                 ($t eq "pull"?" *":" ") . "r";
1426 }
1427
1428 $typefamily{BITMAP} = {
1429         DECL => \&DeclBitmap,
1430         PUSH_FN_BODY => \&ParseBitmapPush,
1431         PULL_FN_BODY => \&ParseBitmapPull,
1432         PRINT_FN_BODY => \&ParseBitmapPrint,
1433 };
1434
1435 #####################################################################
1436 # generate a struct print function
1437 sub ParseStructPrint($$)
1438 {
1439         my($struct,$name) = @_;
1440
1441         return unless defined $struct->{ELEMENTS};
1442
1443         my $env = GenerateStructEnv($struct, "r");
1444
1445         EnvSubstituteValue($env, $struct);
1446
1447         DeclareArrayVariables($_) foreach (@{$struct->{ELEMENTS}});
1448
1449         pidl "ndr_print_struct(ndr, name, \"$name\");";
1450
1451         start_flags($struct);
1452
1453         pidl "ndr->depth++;";
1454
1455         ParseElementPrint($_, "r->$_->{NAME}", $env) foreach (@{$struct->{ELEMENTS}});
1456         pidl "ndr->depth--;";
1457
1458         end_flags($struct);
1459 }
1460
1461 sub DeclarePtrVariables($)
1462 {
1463         my $e = shift;
1464         foreach my $l (@{$e->{LEVELS}}) {
1465                 if ($l->{TYPE} eq "POINTER" and
1466                         not ($l->{POINTER_TYPE} eq "ref" and $l->{LEVEL} eq "TOP")) {
1467                         pidl "uint32_t _ptr_$e->{NAME};";
1468                         last;
1469                 }
1470         }
1471 }
1472
1473 sub DeclareArrayVariables($)
1474 {
1475         my $e = shift;
1476
1477         foreach my $l (@{$e->{LEVELS}}) {
1478                 next if has_fast_array($e,$l);
1479                 next if is_charset_array($e,$l);
1480                 if ($l->{TYPE} eq "ARRAY") {
1481                         pidl "uint32_t cntr_$e->{NAME}_$l->{LEVEL_INDEX};";
1482                 }
1483         }
1484 }
1485
1486 sub need_decl_mem_ctx($$)
1487 {
1488         my ($e,$l) = @_;
1489
1490         return 0 if has_fast_array($e,$l);
1491         return 0 if is_charset_array($e,$l);
1492         return 1 if (($l->{TYPE} eq "ARRAY") and not $l->{IS_FIXED});
1493
1494         if (($l->{TYPE} eq "POINTER") and ($l->{POINTER_TYPE} eq "ref")) {
1495                 my $nl = GetNextLevel($e, $l);
1496                 my $next_is_array = ($nl->{TYPE} eq "ARRAY");
1497                 my $next_is_string = (($nl->{TYPE} eq "DATA") and
1498                                         ($nl->{DATA_TYPE} eq "string"));
1499                 return 0 if ($next_is_array or $next_is_string);
1500         }
1501         return 1 if ($l->{TYPE} eq "POINTER");
1502
1503         return 0;
1504 }
1505
1506 sub DeclareMemCtxVariables($)
1507 {
1508         my $e = shift;
1509         foreach my $l (@{$e->{LEVELS}}) {
1510                 if (need_decl_mem_ctx($e, $l)) {
1511                         pidl "TALLOC_CTX *_mem_save_$e->{NAME}_$l->{LEVEL_INDEX};";
1512                 }
1513         }
1514 }
1515
1516 #####################################################################
1517 # parse a struct - pull side
1518 sub ParseStructPull($$)
1519 {
1520         my($struct,$name) = @_;
1521
1522         return unless defined $struct->{ELEMENTS};
1523
1524         my $env = GenerateStructEnv($struct, "r");
1525
1526         # declare any internal pointers we need
1527         foreach my $e (@{$struct->{ELEMENTS}}) {
1528                 DeclarePtrVariables($e);
1529                 DeclareArrayVariables($e);
1530                 DeclareMemCtxVariables($e);
1531         }
1532
1533         # save the old relative_base_offset
1534         pidl "uint32_t _save_relative_base_offset = ndr_pull_get_relative_base_offset(ndr);" if defined($struct->{PROPERTIES}{relative_base});
1535
1536         start_flags($struct);
1537
1538         pidl "if (ndr_flags & NDR_SCALARS) {";
1539         indent;
1540
1541         if (defined $struct->{SURROUNDING_ELEMENT}) {
1542                 pidl "NDR_CHECK(ndr_pull_array_size(ndr, &r->$struct->{SURROUNDING_ELEMENT}->{NAME}));";
1543         }
1544
1545         pidl "NDR_CHECK(ndr_pull_align(ndr, $struct->{ALIGN}));";
1546
1547         if (defined($struct->{PROPERTIES}{relative_base})) {
1548                 # set the current offset as base for relative pointers
1549                 # and store it based on the toplevel struct/union
1550                 pidl "NDR_CHECK(ndr_pull_setup_relative_base_offset1(ndr, r, ndr->offset));";
1551         }
1552
1553         foreach my $e (@{$struct->{ELEMENTS}}) {
1554                 ParseElementPull($e, "ndr", $env, 1, 0);
1555         }
1556
1557         add_deferred();
1558
1559         deindent;
1560         pidl "}";
1561         pidl "if (ndr_flags & NDR_BUFFERS) {";
1562         indent;
1563         if (defined($struct->{PROPERTIES}{relative_base})) {
1564                 # retrieve the current offset as base for relative pointers
1565                 # based on the toplevel struct/union
1566                 pidl "NDR_CHECK(ndr_pull_setup_relative_base_offset2(ndr, r));";
1567         }
1568         foreach my $e (@{$struct->{ELEMENTS}}) {
1569                 ParseElementPull($e, "ndr", $env, 0, 1);
1570         }
1571
1572         add_deferred();
1573
1574         deindent;
1575         pidl "}";
1576
1577         end_flags($struct);
1578         # restore the old relative_base_offset
1579         pidl "ndr_pull_restore_relative_base_offset(ndr, _save_relative_base_offset);" if defined($struct->{PROPERTIES}{relative_base});
1580 }
1581
1582 #####################################################################
1583 # calculate size of ndr struct
1584 sub ParseStructNdrSize($$)
1585 {
1586         my ($t, $name) = @_;
1587         my $sizevar;
1588
1589         if (my $flags = has_property($t, "flag")) {
1590                 pidl "flags |= $flags;";
1591         }
1592         pidl "return ndr_size_struct(r, flags, (ndr_push_flags_fn_t)ndr_push_$name);";
1593 }
1594
1595 sub DeclStruct($$$)
1596 {
1597         my ($e,$t,$name) = @_;
1598         return ($t ne "pull"?"const ":"") . "struct $name *r";
1599 }
1600
1601 sub ArgsStructNdrSize($$)
1602 {
1603         my ($d, $name) = @_;
1604         return "const struct $name *r, int flags";
1605 }
1606
1607 $typefamily{STRUCT} = {
1608         PUSH_FN_BODY => \&ParseStructPush,
1609         DECL => \&DeclStruct,
1610         PULL_FN_BODY => \&ParseStructPull,
1611         PRINT_FN_BODY => \&ParseStructPrint,
1612         SIZE_FN_BODY => \&ParseStructNdrSize,
1613         SIZE_FN_ARGS => \&ArgsStructNdrSize,
1614 };
1615
1616 #####################################################################
1617 # calculate size of ndr struct
1618 sub ParseUnionNdrSize($$)
1619 {
1620         my ($t, $name) = @_;
1621         my $sizevar;
1622
1623         if (my $flags = has_property($t, "flag")) {
1624                 pidl "flags |= $flags;";
1625         }
1626
1627         pidl "return ndr_size_union(r, flags, level, (ndr_push_flags_fn_t)ndr_push_$name);";
1628 }
1629
1630 #####################################################################
1631 # parse a union - push side
1632 sub ParseUnionPush($$)
1633 {
1634         my ($e,$name) = @_;
1635         my $have_default = 0;
1636
1637         # save the old relative_base_offset
1638         pidl "uint32_t _save_relative_base_offset = ndr_push_get_relative_base_offset(ndr);" if defined($e->{PROPERTIES}{relative_base});
1639         pidl "int level;";
1640
1641         start_flags($e);
1642
1643         pidl "level = ndr_push_get_switch_value(ndr, r);";
1644
1645         pidl "if (ndr_flags & NDR_SCALARS) {";
1646         indent;
1647
1648         if (defined($e->{SWITCH_TYPE})) {
1649                 pidl "NDR_CHECK(ndr_push_$e->{SWITCH_TYPE}(ndr, NDR_SCALARS, level));";
1650         }
1651
1652         pidl "switch (level) {";
1653         indent;
1654         foreach my $el (@{$e->{ELEMENTS}}) {
1655                 if ($el->{CASE} eq "default") {
1656                         $have_default = 1;
1657                 }
1658                 pidl "$el->{CASE}:";
1659
1660                 if ($el->{TYPE} ne "EMPTY") {
1661                         indent;
1662                         if (defined($e->{PROPERTIES}{relative_base})) {
1663                                 pidl "NDR_CHECK(ndr_push_align(ndr, $el->{ALIGN}));";
1664                                 # set the current offset as base for relative pointers
1665                                 # and store it based on the toplevel struct/union
1666                                 pidl "NDR_CHECK(ndr_push_setup_relative_base_offset1(ndr, r, ndr->offset));";
1667                         }
1668                         DeclareArrayVariables($el);
1669                         ParseElementPush($el, "ndr", {$el->{NAME} => "r->$el->{NAME}"}, 1, 0);
1670                         deindent;
1671                 }
1672                 pidl "break;";
1673                 pidl "";
1674         }
1675         if (! $have_default) {
1676                 pidl "default:";
1677                 pidl "\treturn ndr_push_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);";
1678         }
1679         deindent;
1680         pidl "}";
1681         deindent;
1682         pidl "}";
1683         pidl "if (ndr_flags & NDR_BUFFERS) {";
1684         indent;
1685         if (defined($e->{PROPERTIES}{relative_base})) {
1686                 # retrieve the current offset as base for relative pointers
1687                 # based on the toplevel struct/union
1688                 pidl "NDR_CHECK(ndr_push_setup_relative_base_offset2(ndr, r));";
1689         }
1690         pidl "switch (level) {";
1691         indent;
1692         foreach my $el (@{$e->{ELEMENTS}}) {
1693                 pidl "$el->{CASE}:";
1694                 if ($el->{TYPE} ne "EMPTY") {
1695                         indent;
1696                         ParseElementPush($el, "ndr", {$el->{NAME} => "r->$el->{NAME}"}, 0, 1);
1697                         deindent;
1698                 }
1699                 pidl "break;";
1700                 pidl "";
1701         }
1702         if (! $have_default) {
1703                 pidl "default:";
1704                 pidl "\treturn ndr_push_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);";
1705         }
1706         deindent;
1707         pidl "}";
1708
1709         deindent;
1710         pidl "}";
1711         end_flags($e);
1712         # restore the old relative_base_offset
1713         pidl "ndr_push_restore_relative_base_offset(ndr, _save_relative_base_offset);" if defined($e->{PROPERTIES}{relative_base});
1714 }
1715
1716 #####################################################################
1717 # print a union
1718 sub ParseUnionPrint($$)
1719 {
1720         my ($e,$name) = @_;
1721         my $have_default = 0;
1722
1723         pidl "int level;";
1724         foreach my $el (@{$e->{ELEMENTS}}) {
1725                 DeclareArrayVariables($el);
1726         }
1727
1728         start_flags($e);
1729
1730         pidl "level = ndr_print_get_switch_value(ndr, r);";
1731
1732         pidl "ndr_print_union(ndr, name, level, \"$name\");";
1733
1734         pidl "switch (level) {";
1735         indent;
1736         foreach my $el (@{$e->{ELEMENTS}}) {
1737                 if ($el->{CASE} eq "default") {
1738                         $have_default = 1;
1739                 }
1740                 pidl "$el->{CASE}:";
1741                 if ($el->{TYPE} ne "EMPTY") {
1742                         indent;
1743                         ParseElementPrint($el, "r->$el->{NAME}", {});
1744                         deindent;
1745                 }
1746                 pidl "break;";
1747                 pidl "";
1748         }
1749         if (! $have_default) {
1750                 pidl "default:";
1751                 pidl "\tndr_print_bad_level(ndr, name, level);";
1752         }
1753         deindent;
1754         pidl "}";
1755
1756         end_flags($e);
1757 }
1758
1759 #####################################################################
1760 # parse a union - pull side
1761 sub ParseUnionPull($$)
1762 {
1763         my ($e,$name) = @_;
1764         my $have_default = 0;
1765         my $switch_type = $e->{SWITCH_TYPE};
1766
1767         # save the old relative_base_offset
1768         pidl "uint32_t _save_relative_base_offset = ndr_pull_get_relative_base_offset(ndr);" if defined($e->{PROPERTIES}{relative_base});
1769         pidl "int level;";
1770         if (defined($switch_type)) {
1771                 if (Parse::Pidl::Typelist::typeIs($switch_type, "ENUM")) {
1772                         $switch_type = Parse::Pidl::Typelist::enum_type_fn(getType($switch_type)->{DATA});
1773                 }
1774                 pidl mapTypeName($switch_type) . " _level;";
1775         }
1776
1777         my %double_cases = ();
1778         foreach my $el (@{$e->{ELEMENTS}}) {
1779                 next if ($el->{TYPE} eq "EMPTY");
1780                 next if ($double_cases{"$el->{NAME}"});
1781                 DeclareMemCtxVariables($el);
1782                 $double_cases{"$el->{NAME}"} = 1;
1783         }
1784
1785         start_flags($e);
1786
1787         pidl "level = ndr_pull_get_switch_value(ndr, r);";
1788
1789         pidl "if (ndr_flags & NDR_SCALARS) {";
1790         indent;
1791
1792         if (defined($switch_type)) {
1793                 pidl "NDR_CHECK(ndr_pull_$switch_type(ndr, NDR_SCALARS, &_level));";
1794                 pidl "if (_level != level) {";
1795                 pidl "\treturn ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value %u for $name\", _level);";
1796                 pidl "}";
1797         }
1798
1799         pidl "switch (level) {";
1800         indent;
1801         foreach my $el (@{$e->{ELEMENTS}}) {
1802                 if ($el->{CASE} eq "default") {
1803                         $have_default = 1;
1804                 }
1805                 pidl "$el->{CASE}: {";
1806
1807                 if ($el->{TYPE} ne "EMPTY") {
1808                         indent;
1809                         DeclarePtrVariables($el);
1810                         DeclareArrayVariables($el);
1811                         if (defined($e->{PROPERTIES}{relative_base})) {
1812                                 pidl "NDR_CHECK(ndr_pull_align(ndr, $el->{ALIGN}));";
1813                                 # set the current offset as base for relative pointers
1814                                 # and store it based on the toplevel struct/union
1815                                 pidl "NDR_CHECK(ndr_pull_setup_relative_base_offset1(ndr, r, ndr->offset));";
1816                         }
1817                         ParseElementPull($el, "ndr", {$el->{NAME} => "r->$el->{NAME}"}, 1, 0);
1818                         deindent;
1819                 }
1820                 pidl "break; }";
1821                 pidl "";
1822         }
1823         if (! $have_default) {
1824                 pidl "default:";
1825                 pidl "\treturn ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);";
1826         }
1827         deindent;
1828         pidl "}";
1829         deindent;
1830         pidl "}";
1831         pidl "if (ndr_flags & NDR_BUFFERS) {";
1832         indent;
1833         if (defined($e->{PROPERTIES}{relative_base})) {
1834                 # retrieve the current offset as base for relative pointers
1835                 # based on the toplevel struct/union
1836                 pidl "NDR_CHECK(ndr_pull_setup_relative_base_offset2(ndr, r));";
1837         }
1838         pidl "switch (level) {";
1839         indent;
1840         foreach my $el (@{$e->{ELEMENTS}}) {
1841                 pidl "$el->{CASE}:";
1842                 if ($el->{TYPE} ne "EMPTY") {
1843                         indent;
1844                         ParseElementPull($el, "ndr", {$el->{NAME} => "r->$el->{NAME}"}, 0, 1);
1845                         deindent;
1846                 }
1847                 pidl "break;";
1848                 pidl "";
1849         }
1850         if (! $have_default) {
1851                 pidl "default:";
1852                 pidl "\treturn ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);";
1853         }
1854         deindent;
1855         pidl "}";
1856
1857         deindent;
1858         pidl "}";
1859
1860         add_deferred();
1861
1862         end_flags($e);
1863         # restore the old relative_base_offset
1864         pidl "ndr_pull_restore_relative_base_offset(ndr, _save_relative_base_offset);" if defined($e->{PROPERTIES}{relative_base});
1865 }
1866
1867 sub DeclUnion($$$)
1868 {
1869         my ($e,$t,$name) = @_;
1870         return ($t ne "pull"?"const ":"") . "union $name *r";
1871 }
1872
1873 sub ArgsUnionNdrSize($$)
1874 {
1875         my ($d,$name) = @_;
1876         return "const union $name *r, uint32_t level, int flags";
1877 }
1878
1879 $typefamily{UNION} = {
1880         PUSH_FN_BODY => \&ParseUnionPush,
1881         DECL => \&DeclUnion,
1882         PULL_FN_BODY => \&ParseUnionPull,
1883         PRINT_FN_BODY => \&ParseUnionPrint,
1884         SIZE_FN_ARGS => \&ArgsUnionNdrSize,
1885         SIZE_FN_BODY => \&ParseUnionNdrSize,
1886 };
1887
1888 #####################################################################
1889 # parse a typedef - push side
1890 sub ParseTypedefPush($$)
1891 {
1892         my($e,$name) = @_;
1893
1894         $typefamily{$e->{DATA}->{TYPE}}->{PUSH_FN_BODY}->($e->{DATA}, $name);
1895 }
1896
1897 #####################################################################
1898 # parse a typedef - pull side
1899 sub ParseTypedefPull($$)
1900 {
1901         my($e,$name) = @_;
1902
1903         $typefamily{$e->{DATA}->{TYPE}}->{PULL_FN_BODY}->($e->{DATA}, $name);
1904 }
1905
1906 #####################################################################
1907 # parse a typedef - print side
1908 sub ParseTypedefPrint($$)
1909 {
1910         my($e,$name) = @_;
1911
1912         $typefamily{$e->{DATA}->{TYPE}}->{PRINT_FN_BODY}->($e->{DATA}, $name);
1913 }
1914
1915 #####################################################################
1916 ## calculate the size of a structure
1917 sub ParseTypedefNdrSize($$)
1918 {
1919         my($t,$name) = @_;
1920
1921         $typefamily{$t->{DATA}->{TYPE}}->{SIZE_FN_BODY}->($t->{DATA}, $name);
1922 }
1923
1924 sub DeclTypedef($$$)
1925 {
1926         my ($e, $t, $name) = @_;
1927
1928         return $typefamily{$e->{DATA}->{TYPE}}->{DECL}->($e->{DATA}, $t, $name);
1929 }
1930
1931 sub ArgsTypedefNdrSize($$)
1932 {
1933         my ($d, $name) = @_;
1934         return $typefamily{$d->{DATA}->{TYPE}}->{SIZE_FN_ARGS}->($d->{DATA}, $name);
1935 }
1936
1937 $typefamily{TYPEDEF} = {
1938         PUSH_FN_BODY => \&ParseTypedefPush,
1939         DECL => \&DeclTypedef,
1940         PULL_FN_BODY => \&ParseTypedefPull,
1941         PRINT_FN_BODY => \&ParseTypedefPrint,
1942         SIZE_FN_ARGS => \&ArgsTypedefNdrSize,
1943         SIZE_FN_BODY => \&ParseTypedefNdrSize,
1944 };
1945
1946 #####################################################################
1947 # parse a function - print side
1948 sub ParseFunctionPrint($)
1949 {
1950         my($fn) = shift;
1951
1952         pidl_hdr "void ndr_print_$fn->{NAME}(struct ndr_print *ndr, const char *name, int flags, const struct $fn->{NAME} *r);";
1953
1954         return if has_property($fn, "noprint");
1955
1956         pidl "_PUBLIC_ void ndr_print_$fn->{NAME}(struct ndr_print *ndr, const char *name, int flags, const struct $fn->{NAME} *r)";
1957         pidl "{";
1958         indent;
1959
1960         foreach my $e (@{$fn->{ELEMENTS}}) {
1961                 DeclareArrayVariables($e);
1962         }
1963
1964         pidl "ndr_print_struct(ndr, name, \"$fn->{NAME}\");";
1965         pidl "ndr->depth++;";
1966
1967         pidl "if (flags & NDR_SET_VALUES) {";
1968         pidl "\tndr->flags |= LIBNDR_PRINT_SET_VALUES;";
1969         pidl "}";
1970
1971         pidl "if (flags & NDR_IN) {";
1972         indent;
1973         pidl "ndr_print_struct(ndr, \"in\", \"$fn->{NAME}\");";
1974         pidl "ndr->depth++;";
1975
1976         my $env = GenerateFunctionInEnv($fn);
1977         EnvSubstituteValue($env, $fn);
1978
1979         foreach my $e (@{$fn->{ELEMENTS}}) {
1980                 if (grep(/in/,@{$e->{DIRECTION}})) {
1981                         ParseElementPrint($e, $env->{$e->{NAME}}, $env);
1982                 }
1983         }
1984         pidl "ndr->depth--;";
1985         deindent;
1986         pidl "}";
1987
1988         pidl "if (flags & NDR_OUT) {";
1989         indent;
1990         pidl "ndr_print_struct(ndr, \"out\", \"$fn->{NAME}\");";
1991         pidl "ndr->depth++;";
1992
1993         $env = GenerateFunctionOutEnv($fn);
1994         foreach my $e (@{$fn->{ELEMENTS}}) {
1995                 if (grep(/out/,@{$e->{DIRECTION}})) {
1996                         ParseElementPrint($e, $env->{$e->{NAME}}, $env);
1997                 }
1998         }
1999         if ($fn->{RETURN_TYPE}) {
2000                 pidl "ndr_print_$fn->{RETURN_TYPE}(ndr, \"result\", r->out.result);";
2001         }
2002         pidl "ndr->depth--;";
2003         deindent;
2004         pidl "}";
2005
2006         pidl "ndr->depth--;";
2007         deindent;
2008         pidl "}";
2009         pidl "";
2010 }
2011
2012 #####################################################################
2013 # parse a function
2014 sub ParseFunctionPush($)
2015 {
2016         my($fn) = shift;
2017
2018         fn_declare("push", $fn, "NTSTATUS ndr_push_$fn->{NAME}(struct ndr_push *ndr, int flags, const struct $fn->{NAME} *r)") or return;
2019
2020         return if has_property($fn, "nopush");
2021
2022         pidl "{";
2023         indent;
2024
2025         foreach my $e (@{$fn->{ELEMENTS}}) {
2026                 DeclareArrayVariables($e);
2027         }
2028
2029         pidl "if (flags & NDR_IN) {";
2030         indent;
2031
2032         my $env = GenerateFunctionInEnv($fn);
2033
2034         EnvSubstituteValue($env, $fn);
2035
2036         foreach my $e (@{$fn->{ELEMENTS}}) {
2037                 if (grep(/in/,@{$e->{DIRECTION}})) {
2038                         ParseElementPush($e, "ndr", $env, 1, 1);
2039                 }
2040         }
2041
2042         deindent;
2043         pidl "}";
2044
2045         pidl "if (flags & NDR_OUT) {";
2046         indent;
2047
2048         $env = GenerateFunctionOutEnv($fn);
2049         foreach my $e (@{$fn->{ELEMENTS}}) {
2050                 if (grep(/out/,@{$e->{DIRECTION}})) {
2051                         ParseElementPush($e, "ndr", $env, 1, 1);
2052                 }
2053         }
2054
2055         if ($fn->{RETURN_TYPE}) {
2056                 pidl "NDR_CHECK(ndr_push_$fn->{RETURN_TYPE}(ndr, NDR_SCALARS, r->out.result));";
2057         }
2058
2059         deindent;
2060         pidl "}";
2061         pidl "return NT_STATUS_OK;";
2062         deindent;
2063         pidl "}";
2064         pidl "";
2065 }
2066
2067 sub AllocateArrayLevel($$$$$)
2068 {
2069         my ($e,$l,$ndr,$env,$size) = @_;
2070
2071         my $var = ParseExpr($e->{NAME}, $env, $e->{ORIGINAL});
2072
2073         my $pl = GetPrevLevel($e, $l);
2074         if (defined($pl) and
2075             $pl->{TYPE} eq "POINTER" and
2076             $pl->{POINTER_TYPE} eq "ref"
2077             and not $l->{IS_ZERO_TERMINATED}) {
2078                 pidl "if (ndr->flags & LIBNDR_FLAG_REF_ALLOC) {";
2079                 pidl "\tNDR_PULL_ALLOC_N($ndr, $var, $size);";
2080                 pidl "}";
2081                 if (grep(/in/,@{$e->{DIRECTION}}) and
2082                     grep(/out/,@{$e->{DIRECTION}})) {
2083                         pidl "memcpy(r->out.$e->{NAME}, r->in.$e->{NAME}, $size * sizeof(*r->in.$e->{NAME}));";
2084                 }
2085                 return;
2086         }
2087
2088         pidl "NDR_PULL_ALLOC_N($ndr, $var, $size);";
2089 }
2090
2091 #####################################################################
2092 # parse a function
2093 sub ParseFunctionPull($)
2094 {
2095         my($fn) = shift;
2096
2097         # pull function args
2098         fn_declare("pull", $fn, "NTSTATUS ndr_pull_$fn->{NAME}(struct ndr_pull *ndr, int flags, struct $fn->{NAME} *r)") or return;
2099
2100         pidl "{";
2101         indent;
2102
2103         # declare any internal pointers we need
2104         foreach my $e (@{$fn->{ELEMENTS}}) {
2105                 DeclarePtrVariables($e);
2106                 DeclareArrayVariables($e);
2107         }
2108
2109         my %double_cases = ();
2110         foreach my $e (@{$fn->{ELEMENTS}}) {
2111                 next if ($e->{TYPE} eq "EMPTY");
2112                 next if ($double_cases{"$e->{NAME}"});
2113                 DeclareMemCtxVariables($e);
2114                 $double_cases{"$e->{NAME}"} = 1;
2115         }
2116
2117         pidl "if (flags & NDR_IN) {";
2118         indent;
2119
2120         # auto-init the out section of a structure. I originally argued that
2121         # this was a bad idea as it hides bugs, but coping correctly
2122         # with initialisation and not wiping ref vars is turning
2123         # out to be too tricky (tridge)
2124         foreach my $e (@{$fn->{ELEMENTS}}) {
2125                 next unless grep(/out/, @{$e->{DIRECTION}});
2126                 pidl "ZERO_STRUCT(r->out);";
2127                 pidl "";
2128                 last;
2129         }
2130
2131         my $env = GenerateFunctionInEnv($fn);
2132
2133         foreach my $e (@{$fn->{ELEMENTS}}) {
2134                 next unless (grep(/in/, @{$e->{DIRECTION}}));
2135                 ParseElementPull($e, "ndr", $env, 1, 1);
2136         }
2137
2138         # allocate the "simple" out ref variables. FIXME: Shouldn't this have it's
2139         # own flag rather than be in NDR_IN ?
2140
2141         foreach my $e (@{$fn->{ELEMENTS}}) {
2142                 next unless (grep(/out/, @{$e->{DIRECTION}}));
2143                 next unless ($e->{LEVELS}[0]->{TYPE} eq "POINTER" and
2144                              $e->{LEVELS}[0]->{POINTER_TYPE} eq "ref");
2145                 next if (($e->{LEVELS}[1]->{TYPE} eq "DATA") and
2146                                  ($e->{LEVELS}[1]->{DATA_TYPE} eq "string"));
2147                 next if (($e->{LEVELS}[1]->{TYPE} eq "ARRAY")
2148                         and   $e->{LEVELS}[1]->{IS_ZERO_TERMINATED});
2149
2150                 if ($e->{LEVELS}[1]->{TYPE} eq "ARRAY") {
2151                         my $size = ParseExprExt($e->{LEVELS}[1]->{SIZE_IS}, $env, $e->{ORIGINAL}, check_null_pointer($e, $env, \&pidl, "return NT_STATUS_INVALID_PARAMETER_MIX;"),
2152                                 check_fully_dereferenced($e, $env));
2153
2154                         pidl "NDR_PULL_ALLOC_N(ndr, r->out.$e->{NAME}, $size);";
2155
2156                         if (grep(/in/, @{$e->{DIRECTION}})) {
2157                                 pidl "memcpy(r->out.$e->{NAME}, r->in.$e->{NAME}, $size * sizeof(*r->in.$e->{NAME}));";
2158                         } else {
2159                                 pidl "memset(r->out.$e->{NAME}, 0, $size * sizeof(*r->out.$e->{NAME}));";
2160                         }
2161                 } else {
2162                         pidl "NDR_PULL_ALLOC(ndr, r->out.$e->{NAME});";
2163
2164                         if (grep(/in/, @{$e->{DIRECTION}})) {
2165                                 pidl "*r->out.$e->{NAME} = *r->in.$e->{NAME};";
2166                         } else {
2167                                 pidl "ZERO_STRUCTP(r->out.$e->{NAME});";
2168                         }
2169                 }
2170         }
2171
2172         add_deferred();
2173         deindent;
2174         pidl "}";
2175
2176         pidl "if (flags & NDR_OUT) {";
2177         indent;
2178
2179         $env = GenerateFunctionOutEnv($fn);
2180         foreach my $e (@{$fn->{ELEMENTS}}) {
2181                 next unless grep(/out/, @{$e->{DIRECTION}});
2182                 ParseElementPull($e, "ndr", $env, 1, 1);
2183         }
2184
2185         if ($fn->{RETURN_TYPE}) {
2186                 pidl "NDR_CHECK(ndr_pull_$fn->{RETURN_TYPE}(ndr, NDR_SCALARS, &r->out.result));";
2187         }
2188
2189         add_deferred();
2190         deindent;
2191         pidl "}";
2192
2193         pidl "return NT_STATUS_OK;";
2194         deindent;
2195         pidl "}";
2196         pidl "";
2197 }
2198
2199 #####################################################################
2200 # produce a function call table
2201 sub FunctionTable($)
2202 {
2203         my($interface) = shift;
2204         my $count = 0;
2205         my $uname = uc $interface->{NAME};
2206
2207         return if ($#{$interface->{FUNCTIONS}}+1 == 0);
2208         return unless defined ($interface->{PROPERTIES}->{uuid});
2209
2210         pidl "static const struct dcerpc_interface_call $interface->{NAME}\_calls[] = {";
2211         foreach my $d (@{$interface->{FUNCTIONS}}) {
2212                 next if not defined($d->{OPNUM});
2213                 pidl "\t{";
2214                 pidl "\t\t\"$d->{NAME}\",";
2215                 pidl "\t\tsizeof(struct $d->{NAME}),";
2216                 pidl "\t\t(ndr_push_flags_fn_t) ndr_push_$d->{NAME},";
2217                 pidl "\t\t(ndr_pull_flags_fn_t) ndr_pull_$d->{NAME},";
2218                 pidl "\t\t(ndr_print_function_t) ndr_print_$d->{NAME},";
2219                 pidl "\t\t".($d->{ASYNC}?"True":"False").",";
2220                 pidl "\t},";
2221                 $count++;
2222         }
2223         pidl "\t{ NULL, 0, NULL, NULL, NULL, False }";
2224         pidl "};";
2225         pidl "";
2226
2227         pidl "static const char * const $interface->{NAME}\_endpoint_strings[] = {";
2228         foreach my $ep (@{$interface->{ENDPOINTS}}) {
2229                 pidl "\t$ep, ";
2230         }
2231         my $endpoint_count = $#{$interface->{ENDPOINTS}}+1;
2232
2233         pidl "};";
2234         pidl "";
2235
2236         pidl "static const struct dcerpc_endpoint_list $interface->{NAME}\_endpoints = {";
2237         pidl "\t.count\t= $endpoint_count,";
2238         pidl "\t.names\t= $interface->{NAME}\_endpoint_strings";
2239         pidl "};";
2240         pidl "";
2241
2242         if (! defined $interface->{PROPERTIES}->{authservice}) {
2243                 $interface->{PROPERTIES}->{authservice} = "\"host\"";
2244         }
2245
2246         my @a = split / /, $interface->{PROPERTIES}->{authservice};
2247         my $authservice_count = $#a + 1;
2248
2249         pidl "static const char * const $interface->{NAME}\_authservice_strings[] = {";
2250         foreach my $ap (@a) {
2251                 pidl "\t$ap, ";
2252         }
2253         pidl "};";
2254         pidl "";
2255
2256         pidl "static const struct dcerpc_authservice_list $interface->{NAME}\_authservices = {";
2257         pidl "\t.count\t= $endpoint_count,";
2258         pidl "\t.names\t= $interface->{NAME}\_authservice_strings";
2259         pidl "};";
2260         pidl "";
2261
2262         pidl "\nconst struct dcerpc_interface_table dcerpc_table_$interface->{NAME} = {";
2263         pidl "\t.name\t\t= \"$interface->{NAME}\",";
2264         pidl "\t.syntax_id\t= {";
2265         pidl "\t\t" . print_uuid($interface->{UUID}) .",";
2266         pidl "\t\tDCERPC_$uname\_VERSION";
2267         pidl "\t},";
2268         pidl "\t.helpstring\t= DCERPC_$uname\_HELPSTRING,";
2269         pidl "\t.num_calls\t= $count,";
2270         pidl "\t.calls\t\t= $interface->{NAME}\_calls,";
2271         pidl "\t.endpoints\t= &$interface->{NAME}\_endpoints,";
2272         pidl "\t.authservices\t= &$interface->{NAME}\_authservices";
2273         pidl "};";
2274         pidl "";
2275
2276 }
2277
2278 #####################################################################
2279 # generate include statements for imported idl files
2280 sub HeaderImport
2281 {
2282         my @imports = @_;
2283         foreach (@imports) {
2284                 s/\.idl\"$//;
2285                 s/^\"//;
2286                 pidl choose_header("librpc/gen_ndr/ndr_$_\.h", "gen_ndr/ndr_$_.h");
2287         }
2288 }
2289
2290 #####################################################################
2291 # generate include statements for included header files
2292 sub HeaderInclude
2293 {
2294         my @includes = @_;
2295         foreach (@includes) {
2296                 pidl_hdr "#include $_";
2297         }
2298 }
2299
2300 #####################################################################
2301 # generate prototypes and defines for the interface definitions
2302 # FIXME: these prototypes are for the DCE/RPC client functions, not the
2303 # NDR parser and so do not belong here, technically speaking
2304 sub HeaderInterface($)
2305 {
2306         my($interface) = shift;
2307
2308         my $count = 0;
2309
2310         pidl_hdr choose_header("librpc/ndr/libndr.h", "ndr.h");
2311
2312         if (has_property($interface, "object")) {
2313                 pidl choose_header("librpc/gen_ndr/ndr_orpc.h", "ndr/orpc.h");
2314         }
2315
2316         if (defined $interface->{PROPERTIES}->{helper}) {
2317                 HeaderInclude(split / /, $interface->{PROPERTIES}->{helper});
2318         }
2319
2320         if (defined $interface->{PROPERTIES}->{uuid}) {
2321                 my $name = uc $interface->{NAME};
2322                 pidl_hdr "#define DCERPC_$name\_UUID " .
2323                 Parse::Pidl::Util::make_str(lc($interface->{PROPERTIES}->{uuid}));
2324
2325                 if(!defined $interface->{PROPERTIES}->{version}) { $interface->{PROPERTIES}->{version} = "0.0"; }
2326                 pidl_hdr "#define DCERPC_$name\_VERSION $interface->{PROPERTIES}->{version}";
2327
2328                 pidl_hdr "#define DCERPC_$name\_NAME \"$interface->{NAME}\"";
2329
2330                 if(!defined $interface->{PROPERTIES}->{helpstring}) { $interface->{PROPERTIES}->{helpstring} = "NULL"; }
2331                 pidl_hdr "#define DCERPC_$name\_HELPSTRING $interface->{PROPERTIES}->{helpstring}";
2332
2333                 pidl_hdr "extern const struct dcerpc_interface_table dcerpc_table_$interface->{NAME};";
2334                 pidl_hdr "NTSTATUS dcerpc_server_$interface->{NAME}_init(void);";
2335         }
2336
2337         foreach (@{$interface->{FUNCTIONS}}) {
2338                 next if has_property($_, "noopnum");
2339                 next if grep(/$_->{NAME}/,@{$interface->{INHERITED_FUNCTIONS}});
2340                 my $u_name = uc $_->{NAME};
2341
2342                 my $val = sprintf("0x%02x", $count);
2343                 if (defined($interface->{BASE})) {
2344                         $val .= " + DCERPC_" . uc $interface->{BASE} . "_CALL_COUNT";
2345                 }
2346
2347                 pidl_hdr "#define DCERPC_$u_name ($val)";
2348
2349                 pidl_hdr "";
2350                 $count++;
2351         }
2352
2353         my $val = $count;
2354
2355         if (defined($interface->{BASE})) {
2356                 $val .= " + DCERPC_" . uc $interface->{BASE} . "_CALL_COUNT";
2357         }
2358
2359         pidl_hdr "#define DCERPC_" . uc $interface->{NAME} . "_CALL_COUNT ($val)";
2360
2361 }
2362
2363 sub ParseTypePush($)
2364 {
2365         my ($e) = @_;
2366
2367         my $args = $typefamily{$e->{TYPE}}->{DECL}->($e, "push", $e->{NAME});
2368         fn_declare("push", $e, "NTSTATUS ndr_push_$e->{NAME}(struct ndr_push *ndr, int ndr_flags, $args)") or return;
2369
2370         pidl "{";
2371         indent;
2372         $typefamily{$e->{TYPE}}->{PUSH_FN_BODY}->($e, $e->{NAME});
2373         pidl "return NT_STATUS_OK;";
2374         deindent;
2375         pidl "}";
2376         pidl "";;
2377 }
2378
2379 sub ParseTypePull($)
2380 {
2381         my ($e) = @_;
2382
2383         my $args = $typefamily{$e->{TYPE}}->{DECL}->($e, "pull", $e->{NAME});
2384
2385         fn_declare("pull", $e, "NTSTATUS ndr_pull_$e->{NAME}(struct ndr_pull *ndr, int ndr_flags, $args)") or return;
2386
2387         pidl "{";
2388         indent;
2389         $typefamily{$e->{TYPE}}->{PULL_FN_BODY}->($e, $e->{NAME});
2390         pidl "return NT_STATUS_OK;";
2391         deindent;
2392         pidl "}";
2393         pidl "";
2394 }
2395
2396 sub ParseTypePrint($)
2397 {
2398         my ($e) = @_;
2399         my $args = $typefamily{$e->{TYPE}}->{DECL}->($e, "print", $e->{NAME});
2400
2401         pidl_hdr "void ndr_print_$e->{NAME}(struct ndr_print *ndr, const char *name, $args);";
2402
2403         return if (has_property($e, "noprint"));
2404
2405         pidl "_PUBLIC_ void ndr_print_$e->{NAME}(struct ndr_print *ndr, const char *name, $args)";
2406         pidl "{";
2407         indent;
2408         $typefamily{$e->{TYPE}}->{PRINT_FN_BODY}->($e, $e->{NAME});
2409         deindent;
2410         pidl "}";
2411         pidl "";
2412 }
2413
2414 sub ParseTypeNdrSize($)
2415 {
2416         my ($t) = @_;
2417
2418         my $tf = $typefamily{$t->{TYPE}};
2419         my $args = $tf->{SIZE_FN_ARGS}->($t, $t->{NAME});
2420
2421         fn_declare("size", $t, "size_t ndr_size_$t->{NAME}($args)") or return;
2422
2423         pidl "{";
2424         indent;
2425         $typefamily{$t->{TYPE}}->{SIZE_FN_BODY}->($t, $t->{NAME});
2426         deindent;
2427         pidl "}";
2428         pidl "";
2429 }
2430
2431 #####################################################################
2432 # parse the interface definitions
2433 sub ParseInterface($$)
2434 {
2435         my($interface,$needed) = @_;
2436
2437         pidl_hdr "#ifndef _HEADER_NDR_$interface->{NAME}";
2438         pidl_hdr "#define _HEADER_NDR_$interface->{NAME}";
2439
2440         pidl_hdr "";
2441
2442         if ($needed->{"compression"}) {
2443                 pidl choose_header("librpc/ndr/ndr_compression.h", "ndr/compression.h");
2444         }
2445
2446         HeaderInterface($interface);
2447
2448         # Typedefs
2449         foreach my $d (@{$interface->{TYPES}}) {
2450                 ($needed->{"push_$d->{NAME}"}) && ParseTypePush($d);
2451                 ($needed->{"pull_$d->{NAME}"}) && ParseTypePull($d);
2452                 ($needed->{"print_$d->{NAME}"}) && ParseTypePrint($d);
2453
2454                 # Make sure we don't generate a function twice...
2455                 $needed->{"push_$d->{NAME}"} = $needed->{"pull_$d->{NAME}"} =
2456                         $needed->{"print_$d->{NAME}"} = 0;
2457
2458                 ($needed->{"ndr_size_$d->{NAME}"}) && ParseTypeNdrSize($d);
2459         }
2460
2461         # Functions
2462         foreach my $d (@{$interface->{FUNCTIONS}}) {
2463                 ($needed->{"push_$d->{NAME}"}) && ParseFunctionPush($d);
2464                 ($needed->{"pull_$d->{NAME}"}) && ParseFunctionPull($d);
2465                 ($needed->{"print_$d->{NAME}"}) && ParseFunctionPrint($d);
2466
2467                 # Make sure we don't generate a function twice...
2468                 $needed->{"push_$d->{NAME}"} = $needed->{"pull_$d->{NAME}"} =
2469                         $needed->{"print_$d->{NAME}"} = 0;
2470         }
2471
2472         FunctionTable($interface);
2473
2474         pidl_hdr "#endif /* _HEADER_NDR_$interface->{NAME} */";
2475 }
2476
2477 sub GenerateIncludes()
2478 {
2479         if (is_intree()) {
2480                 pidl "#include \"includes.h\"";
2481         } else {
2482                 pidl "#define _GNU_SOURCE";
2483                 pidl "#include <stdint.h>";
2484                 pidl "#include <stdlib.h>";
2485                 pidl "#include <stdio.h>";
2486                 pidl "#include <stdbool.h>";
2487                 pidl "#include <stdarg.h>";
2488                 pidl "#include <string.h>";
2489         }
2490
2491         # Samba3 has everything in include/includes.h
2492         if (is_intree() != 3) {
2493                 pidl choose_header("libcli/util/nterr.h", "core/nterr.h");
2494                 pidl choose_header("librpc/gen_ndr/ndr_misc.h", "gen_ndr/ndr_misc.h");
2495                 pidl choose_header("librpc/gen_ndr/ndr_dcerpc.h", "gen_ndr/ndr_dcerpc.h");
2496                 pidl choose_header("librpc/rpc/dcerpc.h", "dcerpc.h"); #FIXME: This shouldn't be here!
2497         }
2498 }
2499
2500 #####################################################################
2501 # parse a parsed IDL structure back into an IDL file
2502 sub Parse($$$)
2503 {
2504         my($ndr,$gen_header,$ndr_header) = @_;
2505
2506         $tabs = "";
2507         $res = "";
2508
2509         $res_hdr = "";
2510         pidl_hdr "/* header auto-generated by pidl */";
2511         pidl_hdr "";
2512         pidl_hdr "#include \"$gen_header\"" if ($gen_header);
2513         pidl_hdr "";
2514
2515         pidl "/* parser auto-generated by pidl */";
2516         pidl "";
2517         GenerateIncludes();
2518         pidl "#include \"$ndr_header\"" if ($ndr_header);
2519         pidl "";
2520
2521         my %needed = ();
2522
2523         foreach (@{$ndr}) {
2524                 ($_->{TYPE} eq "INTERFACE") && NeededInterface($_, \%needed);
2525         }
2526
2527         foreach (@{$ndr}) {
2528                 ($_->{TYPE} eq "INTERFACE") && ParseInterface($_, \%needed);
2529                 ($_->{TYPE} eq "IMPORT") && HeaderImport(@{$_->{PATHS}});
2530                 ($_->{TYPE} eq "INCLUDE") && HeaderInclude(@{$_->{PATHS}});
2531         }
2532
2533         return ($res_hdr, $res);
2534 }
2535
2536 sub NeededElement($$$)
2537 {
2538         my ($e, $dir, $needed) = @_;
2539
2540         return if ($e->{TYPE} eq "EMPTY");
2541
2542         my @fn = ();
2543         if ($dir eq "print") {
2544                 push(@fn, "print_$e->{REPRESENTATION_TYPE}");
2545         } elsif ($dir eq "pull") {
2546                 push (@fn, "pull_$e->{TYPE}");
2547                 push (@fn, "ndr_$e->{TYPE}_to_$e->{REPRESENTATION_TYPE}")
2548                         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE});
2549         } elsif ($dir eq "push") {
2550                 push (@fn, "push_$e->{TYPE}");
2551                 push (@fn, "ndr_$e->{REPRESENTATION_TYPE}_to_$e->{TYPE}")
2552                         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE});
2553         } else {
2554                 die("invalid direction `$dir'");
2555         }
2556
2557         foreach (@fn) {
2558                 unless (defined($needed->{$_})) {
2559                         $needed->{$_} = 1;
2560                 }
2561         }
2562 }
2563
2564 sub NeededFunction($$)
2565 {
2566         my ($fn,$needed) = @_;
2567         $needed->{"pull_$fn->{NAME}"} = 1;
2568         $needed->{"push_$fn->{NAME}"} = 1;
2569         $needed->{"print_$fn->{NAME}"} = 1;
2570         foreach my $e (@{$fn->{ELEMENTS}}) {
2571                 $e->{PARENT} = $fn;
2572                 NeededElement($e, $_, $needed) foreach ("pull", "push", "print");
2573         }
2574 }
2575
2576 sub NeededType($$)
2577 {
2578         my ($t,$needed) = @_;
2579         if (has_property($t, "public")) {
2580                 $needed->{"pull_$t->{NAME}"} = 1;
2581                 $needed->{"push_$t->{NAME}"} = 1;
2582                 $needed->{"print_$t->{NAME}"} = 1;
2583         }
2584
2585         if ($t->{DATA}->{TYPE} eq "STRUCT" or $t->{DATA}->{TYPE} eq "UNION") {
2586                 if (has_property($t, "gensize")) {
2587                         $needed->{"ndr_size_$t->{NAME}"} = 1;
2588                 }
2589
2590                 for my $e (@{$t->{DATA}->{ELEMENTS}}) {
2591                         $e->{PARENT} = $t->{DATA};
2592                         if (has_property($e, "compression")) {
2593                                 $needed->{"compression"} = 1;
2594                         }
2595                         NeededElement($e, "pull", $needed) if ($needed->{"pull_$t->{NAME}"});
2596                         NeededElement($e, "push", $needed) if ($needed->{"push_$t->{NAME}"});
2597                         NeededElement($e, "print", $needed) if ($needed->{"print_$t->{NAME}"});
2598                 }
2599         }
2600 }
2601
2602 #####################################################################
2603 # work out what parse functions are needed
2604 sub NeededInterface($$)
2605 {
2606         my ($interface,$needed) = @_;
2607         NeededFunction($_, $needed) foreach (@{$interface->{FUNCTIONS}});
2608         NeededType($_, $needed) foreach (reverse @{$interface->{TYPES}});
2609 }
2610
2611 1;