source4/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 $res);
  16
  17 use strict;
  18 use Parse::Pidl::Typelist qw(hasType getType mapTypeName);
  19 use Parse::Pidl::Util qw(has_property ParseExpr ParseExprExt print_uuid);
  20 use Parse::Pidl::NDR qw(GetPrevLevel GetNextLevel ContainsDeferred);
  21 use Parse::Pidl::Samba4 qw(is_intree choose_header);
  22 use Parse::Pidl qw(warning);
  23
  24 use vars qw($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 our $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 sub ParseDataPrint($$$)
 756 {
 757         my ($e, $l, $var_name) = @_;
 758
 759         if (not ref($l->{DATA_TYPE}) or
 760                 defined($l->{DATA_TYPE}->{NAME})) {
 761                 my $t;
 762                 if (ref($l->{DATA_TYPE})) {
 763                         $t = "$l->{DATA_TYPE}->{TYPE}_$l->{DATA_TYPE}->{NAME}";
 764                 } else {
 765                         $t = $l->{DATA_TYPE};
 766                 }
 767                 if (not Parse::Pidl::Typelist::is_scalar($t) or
 768                         Parse::Pidl::Typelist::scalar_is_reference($t)) {
 769                         $var_name = get_pointer_to($var_name);
 770                 }
 771                 pidl "ndr_print_$t(ndr, \"$e->{NAME}\", $var_name);";
 772         } else {
 773                 ParseTypePrint($l->{DATA_TYPE}, $var_name);
 774         }
 775 }
 776
 777 #####################################################################
 778 # print scalars in a structure element
 779 sub ParseElementPrint($$$)
 780 {
 781         my($e, $var_name, $env) = @_;
 782
 783         return if (has_property($e, "noprint"));
 784
 785         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
 786                 pidl "ndr_print_$e->{REPRESENTATION_TYPE}(ndr, \"$e->{NAME}\", $var_name);";
 787                 return;
 788         }
 789
 790         $var_name = append_prefix($e, $var_name);
 791
 792         if (defined(my $value = has_property($e, "value"))) {
 793                 $var_name = "(ndr->flags & LIBNDR_PRINT_SET_VALUES)?" . ParseExpr($value,$env, $e->{ORIGINAL}) . ":$var_name";
 794         }
 795
 796         foreach my $l (@{$e->{LEVELS}}) {
 797                 if ($l->{TYPE} eq "POINTER") {
 798                         pidl "ndr_print_ptr(ndr, \"$e->{NAME}\", $var_name);";
 799                         pidl "ndr->depth++;";
 800                         if ($l->{POINTER_TYPE} ne "ref") {
 801                                 pidl "if ($var_name) {";
 802                                 indent;
 803                         }
 804                         $var_name = get_value_of($var_name);
 805                 } elsif ($l->{TYPE} eq "ARRAY") {
 806                         my $length;
 807
 808                         if ($l->{IS_CONFORMANT} or $l->{IS_VARYING}) {
 809                                 $var_name = get_pointer_to($var_name);
 810                         }
 811
 812                         if ($l->{IS_ZERO_TERMINATED}) {
 813                                 $length = "ndr_string_length($var_name, sizeof(*$var_name))";
 814                         } else {
 815                                 $length = ParseExprExt($l->{LENGTH_IS}, $env, $e->{ORIGINAL},
 816                                                         check_null_pointer($e, $env, \&pidl, "return;"), check_fully_dereferenced($e, $env));
 817                         }
 818
 819                         if (is_charset_array($e,$l)) {
 820                                 pidl "ndr_print_string(ndr, \"$e->{NAME}\", $var_name);";
 821                                 last;
 822                         } elsif (has_fast_array($e, $l)) {
 823                                 my $nl = GetNextLevel($e, $l);
 824                                 pidl "ndr_print_array_$nl->{DATA_TYPE}(ndr, \"$e->{NAME}\", $var_name, $length);";
 825                                 last;
 826                         } else {
 827                                 my $counter = "cntr_$e->{NAME}_$l->{LEVEL_INDEX}";
 828
 829                                 pidl "ndr->print(ndr, \"\%s: ARRAY(\%d)\", \"$e->{NAME}\", $length);";
 830                                 pidl 'ndr->depth++;';
 831                                 pidl "for ($counter=0;$counter<$length;$counter++) {";
 832                                 indent;
 833                                 pidl "char *idx_$l->{LEVEL_INDEX}=NULL;";
 834                                 pidl "asprintf(&idx_$l->{LEVEL_INDEX}, \"[\%d]\", $counter);";
 835                                 pidl "if (idx_$l->{LEVEL_INDEX}) {";
 836                                 indent;
 837
 838                                 $var_name = $var_name . "[$counter]";
 839                         }
 840                 } elsif ($l->{TYPE} eq "DATA") {
 841                         ParseDataPrint($e, $l, $var_name);
 842                 } elsif ($l->{TYPE} eq "SWITCH") {
 843                         my $switch_var = ParseExprExt($l->{SWITCH_IS}, $env, $e->{ORIGINAL},
 844                                                 check_null_pointer($e, $env, \&pidl, "return;"), check_fully_dereferenced($e, $env));
 845                         pidl "ndr_print_set_switch_value(ndr, " . get_pointer_to($var_name) . ", $switch_var);";
 846                 }
 847         }
 848
 849         foreach my $l (reverse @{$e->{LEVELS}}) {
 850                 if ($l->{TYPE} eq "POINTER") {
 851                         if ($l->{POINTER_TYPE} ne "ref") {
 852                                 deindent;
 853                                 pidl "}";
 854                         }
 855                         pidl "ndr->depth--;";
 856                 } elsif (($l->{TYPE} eq "ARRAY")
 857                         and not is_charset_array($e,$l)
 858                         and not has_fast_array($e,$l)) {
 859                         pidl "free(idx_$l->{LEVEL_INDEX});";
 860                         deindent;
 861                         pidl "}";
 862                         deindent;
 863                         pidl "}";
 864                         pidl "ndr->depth--;";
 865                 }
 866         }
 867 }
 868
 869 #####################################################################
 870 # parse scalars in a structure element - pull size
 871 sub ParseSwitchPull($$$$$$)
 872 {
 873         my($e,$l,$ndr,$var_name,$ndr_flags,$env) = @_;
 874         my $switch_var = ParseExprExt($l->{SWITCH_IS}, $env, $e->{ORIGINAL},
 875                 check_null_pointer($e, $env, \&pidl, "return NT_STATUS_INVALID_PARAMETER_MIX;"), check_fully_dereferenced($e, $env));
 876
 877         $var_name = get_pointer_to($var_name);
 878         pidl "NDR_CHECK(ndr_pull_set_switch_value($ndr, $var_name, $switch_var));";
 879 }
 880
 881 #####################################################################
 882 # push switch element
 883 sub ParseSwitchPush($$$$$$)
 884 {
 885         my($e,$l,$ndr,$var_name,$ndr_flags,$env) = @_;
 886         my $switch_var = ParseExprExt($l->{SWITCH_IS}, $env, $e->{ORIGINAL},
 887                 check_null_pointer($e, $env, \&pidl, "return NT_STATUS_INVALID_PARAMETER_MIX;"), check_fully_dereferenced($e, $env));
 888
 889         $var_name = get_pointer_to($var_name);
 890         pidl "NDR_CHECK(ndr_push_set_switch_value($ndr, $var_name, $switch_var));";
 891 }
 892
 893 sub ParseDataPull($$$$$)
 894 {
 895         my ($e,$l,$ndr,$var_name,$ndr_flags) = @_;
 896
 897         if (not ref($l->{DATA_TYPE}) or
 898                 defined($l->{DATA_TYPE}->{NAME})) {
 899                 my $t;
 900                 if (ref($l->{DATA_TYPE}) eq "HASH") {
 901                         $t = "$l->{DATA_TYPE}->{TYPE}_$l->{DATA_TYPE}->{NAME}";
 902                 } else {
 903                         $t = $l->{DATA_TYPE};
 904                 }
 905
 906                 if (Parse::Pidl::Typelist::scalar_is_reference($t)) {
 907                         $var_name = get_pointer_to($var_name);
 908                 }
 909
 910                 $var_name = get_pointer_to($var_name);
 911
 912                 pidl "NDR_CHECK(ndr_pull_$t($ndr, $ndr_flags, $var_name));";
 913
 914                 if (my $range = has_property($e, "range")) {
 915                         $var_name = get_value_of($var_name);
 916                         my ($low, $high) = split(/ /, $range, 2);
 917                         pidl "if ($var_name < $low || $var_name > $high) {";
 918                         pidl "\treturn ndr_pull_error($ndr, NDR_ERR_RANGE, \"value out of range\");";
 919                         pidl "}";
 920                 }
 921         } else {
 922                 ParseTypePull($l->{DATA_TYPE}, $var_name);
 923         }
 924 }
 925
 926 sub ParseDataPush($$$$$)
 927 {
 928         my ($e,$l,$ndr,$var_name,$ndr_flags) = @_;
 929
 930         if (not ref($l->{DATA_TYPE}) or defined($l->{DATA_TYPE}->{NAME})) {
 931                 my $t;
 932                 if (ref($l->{DATA_TYPE}) eq "HASH") {
 933                         $t = "$l->{DATA_TYPE}->{TYPE}_$l->{DATA_TYPE}->{NAME}";
 934                 } else {
 935                         $t = $l->{DATA_TYPE};
 936                 }
 937
 938                 # strings are passed by value rather than reference
 939                 if (not Parse::Pidl::Typelist::is_scalar($t) or
 940                         Parse::Pidl::Typelist::scalar_is_reference($t)) {
 941                         $var_name = get_pointer_to($var_name);
 942                 }
 943
 944                 pidl "NDR_CHECK(ndr_push_$t($ndr, $ndr_flags, $var_name));";
 945         } else {
 946                 ParseTypePush($l->{DATA_TYPE}, $var_name);
 947         }
 948 }
 949
 950 sub CalcNdrFlags($$$)
 951 {
 952         my ($l,$primitives,$deferred) = @_;
 953
 954         my $scalars = 0;
 955         my $buffers = 0;
 956
 957         # Add NDR_SCALARS if this one is deferred
 958         # and deferreds may be pushed
 959         $scalars = 1 if ($l->{IS_DEFERRED} and $deferred);
 960
 961         # Add NDR_SCALARS if this one is not deferred and
 962         # primitives may be pushed
 963         $scalars = 1 if (!$l->{IS_DEFERRED} and $primitives);
 964
 965         # Add NDR_BUFFERS if this one contains deferred stuff
 966         # and deferreds may be pushed
 967         $buffers = 1 if ($l->{CONTAINS_DEFERRED} and $deferred);
 968
 969         return "NDR_SCALARS|NDR_BUFFERS" if ($scalars and $buffers);
 970         return "NDR_SCALARS" if ($scalars);
 971         return "NDR_BUFFERS" if ($buffers);
 972         return undef;
 973 }
 974
 975 sub ParseMemCtxPullStart($$$)
 976 {
 977         my ($e, $l, $ptr_name) = @_;
 978
 979         my $mem_r_ctx = "_mem_save_$e->{NAME}_$l->{LEVEL_INDEX}";
 980         my $mem_c_ctx = $ptr_name;
 981         my $mem_c_flags = "0";
 982
 983         return if ($l->{TYPE} eq "ARRAY" and $l->{IS_FIXED});
 984
 985         if (($l->{TYPE} eq "POINTER") and ($l->{POINTER_TYPE} eq "ref")) {
 986                 my $nl = GetNextLevel($e, $l);
 987                 my $next_is_array = ($nl->{TYPE} eq "ARRAY");
 988                 my $next_is_string = (($nl->{TYPE} eq "DATA") and
 989                                         ($nl->{DATA_TYPE} eq "string"));
 990                 if ($next_is_array or $next_is_string) {
 991                         return;
 992                 } else {
 993                         $mem_c_flags = "LIBNDR_FLAG_REF_ALLOC";
 994                 }
 995         }
 996
 997         pidl "$mem_r_ctx = NDR_PULL_GET_MEM_CTX(ndr);";
 998         pidl "NDR_PULL_SET_MEM_CTX(ndr, $mem_c_ctx, $mem_c_flags);";
 999 }
1000
1001 sub ParseMemCtxPullEnd($$)
1002 {
1003         my $e = shift;
1004         my $l = shift;
1005
1006         my $mem_r_ctx = "_mem_save_$e->{NAME}_$l->{LEVEL_INDEX}";
1007         my $mem_r_flags = "0";
1008
1009         return if ($l->{TYPE} eq "ARRAY" and $l->{IS_FIXED});
1010
1011         if (($l->{TYPE} eq "POINTER") and ($l->{POINTER_TYPE} eq "ref")) {
1012                 my $nl = GetNextLevel($e, $l);
1013                 my $next_is_array = ($nl->{TYPE} eq "ARRAY");
1014                 my $next_is_string = (($nl->{TYPE} eq "DATA") and
1015                                         ($nl->{DATA_TYPE} eq "string"));
1016                 if ($next_is_array or $next_is_string) {
1017                         return;
1018                 } else {
1019                         $mem_r_flags = "LIBNDR_FLAG_REF_ALLOC";
1020                 }
1021         }
1022
1023         pidl "NDR_PULL_SET_MEM_CTX(ndr, $mem_r_ctx, $mem_r_flags);";
1024 }
1025
1026 sub CheckStringTerminator($$$$)
1027 {
1028         my ($ndr,$e,$l,$length) = @_;
1029         my $nl = GetNextLevel($e, $l);
1030
1031         # Make sure last element is zero!
1032         pidl "NDR_CHECK(ndr_check_string_terminator($ndr, $length, sizeof($nl->{DATA_TYPE}_t)));";
1033 }
1034
1035 sub ParseElementPullLevel
1036 {
1037         my($e,$l,$ndr,$var_name,$env,$primitives,$deferred) = @_;
1038
1039         my $ndr_flags = CalcNdrFlags($l, $primitives, $deferred);
1040
1041         if ($l->{TYPE} eq "ARRAY" and ($l->{IS_VARYING} or $l->{IS_CONFORMANT})) {
1042                 $var_name = get_pointer_to($var_name);
1043         }
1044
1045         # Only pull something if there's actually something to be pulled
1046         if (defined($ndr_flags)) {
1047                 if ($l->{TYPE} eq "SUBCONTEXT") {
1048                         my $subndr = ParseSubcontextPullStart($e, $l, $ndr, $env);
1049                         ParseElementPullLevel($e, GetNextLevel($e,$l), $subndr, $var_name, $env, 1, 1);
1050                         ParseSubcontextPullEnd($e, $l, $ndr, $env);
1051                 } elsif ($l->{TYPE} eq "ARRAY") {
1052                         my $length = ParseArrayPullHeader($e, $l, $ndr, $var_name, $env);
1053
1054                         my $nl = GetNextLevel($e, $l);
1055
1056                         if (is_charset_array($e,$l)) {
1057                                 if ($l->{IS_ZERO_TERMINATED}) {
1058                                         CheckStringTerminator($ndr, $e, $l, $length);
1059                                 }
1060                                 pidl "NDR_CHECK(ndr_pull_charset($ndr, $ndr_flags, ".get_pointer_to($var_name).", $length, sizeof(" . mapTypeName($nl->{DATA_TYPE}) . "), CH_$e->{PROPERTIES}->{charset}));";
1061                                 return;
1062                         } elsif (has_fast_array($e, $l)) {
1063                                 if ($l->{IS_ZERO_TERMINATED}) {
1064                                         CheckStringTerminator($ndr,$e,$l,$length);
1065                                 }
1066                                 pidl "NDR_CHECK(ndr_pull_array_$nl->{DATA_TYPE}($ndr, $ndr_flags, $var_name, $length));";
1067                                 return;
1068                         }
1069                 } elsif ($l->{TYPE} eq "POINTER") {
1070                         ParsePtrPull($e, $l, $ndr, $var_name);
1071                 } elsif ($l->{TYPE} eq "SWITCH") {
1072                         ParseSwitchPull($e, $l, $ndr, $var_name, $ndr_flags, $env);
1073                 } elsif ($l->{TYPE} eq "DATA") {
1074                         ParseDataPull($e, $l, $ndr, $var_name, $ndr_flags);
1075                 }
1076         }
1077
1078         # add additional constructions
1079         if ($l->{TYPE} eq "POINTER" and $deferred) {
1080                 if ($l->{POINTER_TYPE} ne "ref") {
1081                         pidl "if ($var_name) {";
1082                         indent;
1083
1084                         if ($l->{POINTER_TYPE} eq "relative") {
1085                                 pidl "struct ndr_pull_save _relative_save;";
1086                                 pidl "ndr_pull_save(ndr, &_relative_save);";
1087                                 pidl "NDR_CHECK(ndr_pull_relative_ptr2(ndr, $var_name));";
1088                         }
1089                 }
1090
1091                 ParseMemCtxPullStart($e, $l, $var_name);
1092
1093                 $var_name = get_value_of($var_name);
1094                 ParseElementPullLevel($e, GetNextLevel($e,$l), $ndr, $var_name, $env, 1, 1);
1095
1096                 ParseMemCtxPullEnd($e,$l);
1097
1098                 if ($l->{POINTER_TYPE} ne "ref") {
1099                         if ($l->{POINTER_TYPE} eq "relative") {
1100                                 pidl "ndr_pull_restore(ndr, &_relative_save);";
1101                         }
1102                         deindent;
1103                         pidl "}";
1104                 }
1105         } elsif ($l->{TYPE} eq "ARRAY" and
1106                         not has_fast_array($e,$l) and not is_charset_array($e, $l)) {
1107                 my $length = ParseExpr($l->{LENGTH_IS}, $env, $e->{ORIGINAL});
1108                 my $counter = "cntr_$e->{NAME}_$l->{LEVEL_INDEX}";
1109                 my $array_name = $var_name;
1110
1111                 $var_name = $var_name . "[$counter]";
1112
1113                 ParseMemCtxPullStart($e, $l, $array_name);
1114
1115                 if (($primitives and not $l->{IS_DEFERRED}) or ($deferred and $l->{IS_DEFERRED})) {
1116                         my $nl = GetNextLevel($e,$l);
1117
1118                         if ($l->{IS_ZERO_TERMINATED}) {
1119                                 CheckStringTerminator($ndr,$e,$l,$length);
1120                         }
1121
1122                         pidl "for ($counter = 0; $counter < $length; $counter++) {";
1123                         indent;
1124                         ParseElementPullLevel($e, $nl, $ndr, $var_name, $env, 1, 0);
1125                         deindent;
1126                         pidl "}";
1127                 }
1128
1129                 if ($deferred and ContainsDeferred($e, $l)) {
1130                         pidl "for ($counter = 0; $counter < $length; $counter++) {";
1131                         indent;
1132                         ParseElementPullLevel($e,GetNextLevel($e,$l), $ndr, $var_name, $env, 0, 1);
1133                         deindent;
1134                         pidl "}";
1135                 }
1136
1137                 ParseMemCtxPullEnd($e, $l);
1138
1139         } elsif ($l->{TYPE} eq "SWITCH") {
1140                 ParseElementPullLevel($e, GetNextLevel($e,$l), $ndr, $var_name, $env, $primitives, $deferred);
1141         }
1142 }
1143
1144 #####################################################################
1145 # parse scalars in a structure element - pull size
1146 sub ParseElementPull($$$$$)
1147 {
1148         my($e,$ndr,$env,$primitives,$deferred) = @_;
1149
1150         my $var_name = $env->{$e->{NAME}};
1151         my $represent_name;
1152         my $transmit_name;
1153
1154         return unless $primitives or ($deferred and ContainsDeferred($e, $e->{LEVELS}[0]));
1155
1156         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
1157                 pidl "{";
1158                 indent;
1159                 $represent_name = $var_name;
1160                 $transmit_name = "_transmit_$e->{NAME}";
1161                 $var_name = $transmit_name;
1162                 pidl mapTypeName($e->{TYPE})." $var_name;";
1163         }
1164
1165         $var_name = append_prefix($e, $var_name);
1166
1167         start_flags($e);
1168
1169         ParseElementPullLevel($e,$e->{LEVELS}[0],$ndr,$var_name,$env,$primitives,$deferred);
1170
1171         end_flags($e);
1172
1173         # Representation type is different from transmit_as
1174         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE}) {
1175                 pidl "NDR_CHECK(ndr_$e->{TYPE}_to_$e->{REPRESENTATION_TYPE}($transmit_name, ".get_pointer_to($represent_name)."));";
1176                 deindent;
1177                 pidl "}";
1178         }
1179 }
1180
1181 #####################################################################
1182 # parse a pointer in a struct element or function
1183 sub ParsePtrPull($$$$)
1184 {
1185         my($e,$l,$ndr,$var_name) = @_;
1186
1187         my $nl = GetNextLevel($e, $l);
1188         my $next_is_array = ($nl->{TYPE} eq "ARRAY");
1189         my $next_is_string = (($nl->{TYPE} eq "DATA") and
1190                                                  ($nl->{DATA_TYPE} eq "string"));
1191
1192         if ($l->{POINTER_TYPE} eq "ref") {
1193                 if ($l->{LEVEL} eq "EMBEDDED") {
1194                         pidl "NDR_CHECK(ndr_pull_ref_ptr($ndr, &_ptr_$e->{NAME}));";
1195                 }
1196
1197                 if (!$next_is_array and !$next_is_string) {
1198                         pidl "if (ndr->flags & LIBNDR_FLAG_REF_ALLOC) {";
1199                         pidl "\tNDR_PULL_ALLOC($ndr, $var_name);";
1200                         pidl "}";
1201                 }
1202
1203                 return;
1204         } elsif (($l->{POINTER_TYPE} eq "unique") or
1205                  ($l->{POINTER_TYPE} eq "relative") or
1206                  ($l->{POINTER_TYPE} eq "full")) {
1207                 pidl "NDR_CHECK(ndr_pull_generic_ptr($ndr, &_ptr_$e->{NAME}));";
1208                 pidl "if (_ptr_$e->{NAME}) {";
1209                 indent;
1210         } else {
1211                 die("Unhandled pointer type $l->{POINTER_TYPE}");
1212         }
1213
1214         # Don't do this for arrays, they're allocated at the actual level
1215         # of the array
1216         unless ($next_is_array or $next_is_string) {
1217                 pidl "NDR_PULL_ALLOC($ndr, $var_name);";
1218         } else {
1219                 # FIXME: Yes, this is nasty.
1220                 # We allocate an array twice
1221                 # - once just to indicate that it's there,
1222                 # - then the real allocation...
1223                 pidl "NDR_PULL_ALLOC($ndr, $var_name);";
1224         }
1225
1226         #pidl "memset($var_name, 0, sizeof($var_name));";
1227         if ($l->{POINTER_TYPE} eq "relative") {
1228                 pidl "NDR_CHECK(ndr_pull_relative_ptr1($ndr, $var_name, _ptr_$e->{NAME}));";
1229         }
1230         deindent;
1231         pidl "} else {";
1232         pidl "\t$var_name = NULL;";
1233         pidl "}";
1234 }
1235
1236 sub ParseStructPushPrimitives($$$$)
1237 {
1238         my ($struct, $name, $varname, $env) = @_;
1239
1240         # see if the structure contains a conformant array. If it
1241         # does, then it must be the last element of the structure, and
1242         # we need to push the conformant length early, as it fits on
1243         # the wire before the structure (and even before the structure
1244         # alignment)
1245         if (defined($struct->{SURROUNDING_ELEMENT})) {
1246                 my $e = $struct->{SURROUNDING_ELEMENT};
1247
1248                 if (defined($e->{LEVELS}[0]) and
1249                         $e->{LEVELS}[0]->{TYPE} eq "ARRAY") {
1250                         my $size;
1251
1252                         if ($e->{LEVELS}[0]->{IS_ZERO_TERMINATED}) {
1253                                 if (has_property($e, "charset")) {
1254                                         $size = "ndr_charset_length($varname->$e->{NAME}, CH_$e->{PROPERTIES}->{charset})";
1255                                 } else {
1256                                         $size = "ndr_string_length($varname->$e->{NAME}, sizeof(*$varname->$e->{NAME}))";
1257                                 }
1258                         } else {
1259                                 $size = ParseExpr($e->{LEVELS}[0]->{SIZE_IS}, $env, $e->{ORIGINAL});
1260                         }
1261
1262                         pidl "NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, $size));";
1263                 } else {
1264                         pidl "NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, ndr_string_array_size(ndr, $varname->$e->{NAME})));";
1265                 }
1266         }
1267
1268         pidl "NDR_CHECK(ndr_push_align(ndr, $struct->{ALIGN}));";
1269
1270         if (defined($struct->{PROPERTIES}{relative_base})) {
1271                 # set the current offset as base for relative pointers
1272                 # and store it based on the toplevel struct/union
1273                 pidl "NDR_CHECK(ndr_push_setup_relative_base_offset1(ndr, $varname, ndr->offset));";
1274         }
1275
1276         ParseElementPush($_, "ndr", $env, 1, 0) foreach (@{$struct->{ELEMENTS}});
1277 }
1278
1279 sub ParseStructPushDeferred($$$$)
1280 {
1281         my ($struct, $name, $varname, $env) = @_;
1282         if (defined($struct->{PROPERTIES}{relative_base})) {
1283                 # retrieve the current offset as base for relative pointers
1284                 # based on the toplevel struct/union
1285                 pidl "NDR_CHECK(ndr_push_setup_relative_base_offset2(ndr, $varname));";
1286         }
1287         ParseElementPush($_, "ndr", $env, 0, 1) foreach (@{$struct->{ELEMENTS}});
1288 }
1289
1290 #####################################################################
1291 # parse a struct
1292 sub ParseStructPush($$$)
1293 {
1294         my ($struct, $name, $varname) = @_;
1295
1296         return unless defined($struct->{ELEMENTS});
1297
1298         my $env = GenerateStructEnv($struct, $varname);
1299
1300         EnvSubstituteValue($env, $struct);
1301
1302         DeclareArrayVariables($_) foreach (@{$struct->{ELEMENTS}});
1303
1304         start_flags($struct);
1305
1306         pidl "if (ndr_flags & NDR_SCALARS) {";
1307         indent;
1308         ParseStructPushPrimitives($struct, $name, $varname, $env);
1309         deindent;
1310         pidl "}";
1311
1312         pidl "if (ndr_flags & NDR_BUFFERS) {";
1313         indent;
1314         ParseStructPushDeferred($struct, $name, $varname, $env);
1315         deindent;
1316         pidl "}";
1317
1318         end_flags($struct);
1319 }
1320
1321 #####################################################################
1322 # generate a push function for an enum
1323 sub ParseEnumPush($$$)
1324 {
1325         my($enum,$name,$varname) = @_;
1326         my($type_fn) = $enum->{BASE_TYPE};
1327
1328         start_flags($enum);
1329         pidl "NDR_CHECK(ndr_push_$type_fn(ndr, NDR_SCALARS, $varname));";
1330         end_flags($enum);
1331 }
1332
1333 #####################################################################
1334 # generate a pull function for an enum
1335 sub ParseEnumPull($$$)
1336 {
1337         my($enum,$name,$varname) = @_;
1338         my($type_fn) = $enum->{BASE_TYPE};
1339         my($type_v_decl) = mapTypeName($type_fn);
1340
1341         pidl "$type_v_decl v;";
1342         start_flags($enum);
1343         pidl "NDR_CHECK(ndr_pull_$type_fn(ndr, NDR_SCALARS, &v));";
1344         pidl "*$varname = v;";
1345
1346         end_flags($enum);
1347 }
1348
1349 #####################################################################
1350 # generate a print function for an enum
1351 sub ParseEnumPrint($$$)
1352 {
1353         my($enum,$name,$varname) = @_;
1354
1355         pidl "const char *val = NULL;";
1356         pidl "";
1357
1358         start_flags($enum);
1359
1360         pidl "switch ($varname) {";
1361         indent;
1362         my $els = \@{$enum->{ELEMENTS}};
1363         foreach my $i (0 .. $#{$els}) {
1364                 my $e = ${$els}[$i];
1365                 chomp $e;
1366                 if ($e =~ /^(.*)=/) {
1367                         $e = $1;
1368                 }
1369                 pidl "case $e: val = \"$e\"; break;";
1370         }
1371
1372         deindent;
1373         pidl "}";
1374
1375         pidl "ndr_print_enum(ndr, name, \"$enum->{TYPE}\", val, $varname);";
1376
1377         end_flags($enum);
1378 }
1379
1380 sub DeclEnum($$$$)
1381 {
1382         my ($e,$t,$name,$varname) = @_;
1383         return "enum $name " .
1384                 ($t eq "pull"?"*":"") . $varname;
1385 }
1386
1387 $typefamily{ENUM} = {
1388         DECL => \&DeclEnum,
1389         PUSH_FN_BODY => \&ParseEnumPush,
1390         PULL_FN_BODY => \&ParseEnumPull,
1391         PRINT_FN_BODY => \&ParseEnumPrint,
1392 };
1393
1394 #####################################################################
1395 # generate a push function for a bitmap
1396 sub ParseBitmapPush($$$)
1397 {
1398         my($bitmap,$name,$varname) = @_;
1399         my($type_fn) = $bitmap->{BASE_TYPE};
1400
1401         start_flags($bitmap);
1402
1403         pidl "NDR_CHECK(ndr_push_$type_fn(ndr, NDR_SCALARS, $varname));";
1404
1405         end_flags($bitmap);
1406 }
1407
1408 #####################################################################
1409 # generate a pull function for an bitmap
1410 sub ParseBitmapPull($$$)
1411 {
1412         my($bitmap,$name,$varname) = @_;
1413         my $type_fn = $bitmap->{BASE_TYPE};
1414         my($type_decl) = mapTypeName($bitmap->{BASE_TYPE});
1415
1416         pidl "$type_decl v;";
1417         start_flags($bitmap);
1418         pidl "NDR_CHECK(ndr_pull_$type_fn(ndr, NDR_SCALARS, &v));";
1419         pidl "*$varname = v;";
1420
1421         end_flags($bitmap);
1422 }
1423
1424 #####################################################################
1425 # generate a print function for an bitmap
1426 sub ParseBitmapPrintElement($$$$)
1427 {
1428         my($e,$bitmap,$name,$varname) = @_;
1429         my($type_decl) = mapTypeName($bitmap->{BASE_TYPE});
1430         my($type_fn) = $bitmap->{BASE_TYPE};
1431         my($flag);
1432
1433         if ($e =~ /^(\w+) .*$/) {
1434                 $flag = "$1";
1435         } else {
1436                 die "Bitmap: \"$name\" invalid Flag: \"$e\"";
1437         }
1438
1439         pidl "ndr_print_bitmap_flag(ndr, sizeof($type_decl), \"$flag\", $flag, $varname);";
1440 }
1441
1442 #####################################################################
1443 # generate a print function for an bitmap
1444 sub ParseBitmapPrint($$$)
1445 {
1446         my($bitmap,$name,$varname) = @_;
1447         my($type_decl) = mapTypeName($bitmap->{TYPE});
1448         my($type_fn) = $bitmap->{BASE_TYPE};
1449
1450         start_flags($bitmap);
1451
1452         pidl "ndr_print_$type_fn(ndr, name, $varname);";
1453
1454         pidl "ndr->depth++;";
1455         foreach my $e (@{$bitmap->{ELEMENTS}}) {
1456                 ParseBitmapPrintElement($e, $bitmap, $name, $varname);
1457         }
1458         pidl "ndr->depth--;";
1459
1460         end_flags($bitmap);
1461 }
1462
1463 sub DeclBitmap($$$$)
1464 {
1465         my ($e,$t,$name,$varname) = @_;
1466         return mapTypeName(Parse::Pidl::Typelist::bitmap_type_fn($e)) .
1467                 ($t eq "pull"?" *":" ") . $varname;
1468 }
1469
1470 $typefamily{BITMAP} = {
1471         DECL => \&DeclBitmap,
1472         PUSH_FN_BODY => \&ParseBitmapPush,
1473         PULL_FN_BODY => \&ParseBitmapPull,
1474         PRINT_FN_BODY => \&ParseBitmapPrint,
1475 };
1476
1477 #####################################################################
1478 # generate a struct print function
1479 sub ParseStructPrint($$$)
1480 {
1481         my($struct,$name,$varname) = @_;
1482
1483         return unless defined $struct->{ELEMENTS};
1484
1485         my $env = GenerateStructEnv($struct, $varname);
1486
1487         EnvSubstituteValue($env, $struct);
1488
1489         DeclareArrayVariables($_) foreach (@{$struct->{ELEMENTS}});
1490
1491         pidl "ndr_print_struct(ndr, name, \"$name\");";
1492
1493         start_flags($struct);
1494
1495         pidl "ndr->depth++;";
1496
1497         ParseElementPrint($_, $env->{$_->{NAME}}, $env)
1498                 foreach (@{$struct->{ELEMENTS}});
1499         pidl "ndr->depth--;";
1500
1501         end_flags($struct);
1502 }
1503
1504 sub DeclarePtrVariables($)
1505 {
1506         my $e = shift;
1507         foreach my $l (@{$e->{LEVELS}}) {
1508                 if ($l->{TYPE} eq "POINTER" and
1509                         not ($l->{POINTER_TYPE} eq "ref" and $l->{LEVEL} eq "TOP")) {
1510                         pidl "uint32_t _ptr_$e->{NAME};";
1511                         last;
1512                 }
1513         }
1514 }
1515
1516 sub DeclareArrayVariables($)
1517 {
1518         my $e = shift;
1519
1520         foreach my $l (@{$e->{LEVELS}}) {
1521                 next if has_fast_array($e,$l);
1522                 next if is_charset_array($e,$l);
1523                 if ($l->{TYPE} eq "ARRAY") {
1524                         pidl "uint32_t cntr_$e->{NAME}_$l->{LEVEL_INDEX};";
1525                 }
1526         }
1527 }
1528
1529 sub need_decl_mem_ctx($$)
1530 {
1531         my ($e,$l) = @_;
1532
1533         return 0 if has_fast_array($e,$l);
1534         return 0 if is_charset_array($e,$l);
1535         return 1 if (($l->{TYPE} eq "ARRAY") and not $l->{IS_FIXED});
1536
1537         if (($l->{TYPE} eq "POINTER") and ($l->{POINTER_TYPE} eq "ref")) {
1538                 my $nl = GetNextLevel($e, $l);
1539                 my $next_is_array = ($nl->{TYPE} eq "ARRAY");
1540                 my $next_is_string = (($nl->{TYPE} eq "DATA") and
1541                                         ($nl->{DATA_TYPE} eq "string"));
1542                 return 0 if ($next_is_array or $next_is_string);
1543         }
1544         return 1 if ($l->{TYPE} eq "POINTER");
1545
1546         return 0;
1547 }
1548
1549 sub DeclareMemCtxVariables($)
1550 {
1551         my $e = shift;
1552         foreach my $l (@{$e->{LEVELS}}) {
1553                 if (need_decl_mem_ctx($e, $l)) {
1554                         pidl "TALLOC_CTX *_mem_save_$e->{NAME}_$l->{LEVEL_INDEX};";
1555                 }
1556         }
1557 }
1558
1559 sub ParseStructPullPrimitives($$$$)
1560 {
1561         my($struct,$name,$varname,$env) = @_;
1562
1563         if (defined $struct->{SURROUNDING_ELEMENT}) {
1564                 pidl "NDR_CHECK(ndr_pull_array_size(ndr, &$varname->$struct->{SURROUNDING_ELEMENT}->{NAME}));";
1565         }
1566
1567         pidl "NDR_CHECK(ndr_pull_align(ndr, $struct->{ALIGN}));";
1568
1569         if (defined($struct->{PROPERTIES}{relative_base})) {
1570                 # set the current offset as base for relative pointers
1571                 # and store it based on the toplevel struct/union
1572                 pidl "NDR_CHECK(ndr_pull_setup_relative_base_offset1(ndr, $varname, ndr->offset));";
1573         }
1574
1575         ParseElementPull($_, "ndr", $env, 1, 0) foreach (@{$struct->{ELEMENTS}});
1576
1577         add_deferred();
1578 }
1579
1580 sub ParseStructPullDeferred($$$$)
1581 {
1582         my ($struct,$name,$varname,$env) = @_;
1583
1584         if (defined($struct->{PROPERTIES}{relative_base})) {
1585                 # retrieve the current offset as base for relative pointers
1586                 # based on the toplevel struct/union
1587                 pidl "NDR_CHECK(ndr_pull_setup_relative_base_offset2(ndr, $varname));";
1588         }
1589         foreach my $e (@{$struct->{ELEMENTS}}) {
1590                 ParseElementPull($e, "ndr", $env, 0, 1);
1591         }
1592
1593         add_deferred();
1594 }
1595
1596 #####################################################################
1597 # parse a struct - pull side
1598 sub ParseStructPull($$$)
1599 {
1600         my($struct,$name,$varname) = @_;
1601
1602         return unless defined $struct->{ELEMENTS};
1603
1604         # declare any internal pointers we need
1605         foreach my $e (@{$struct->{ELEMENTS}}) {
1606                 DeclarePtrVariables($e);
1607                 DeclareArrayVariables($e);
1608                 DeclareMemCtxVariables($e);
1609         }
1610
1611         start_flags($struct);
1612
1613         my $env = GenerateStructEnv($struct, $varname);
1614
1615         pidl "if (ndr_flags & NDR_SCALARS) {";
1616         indent;
1617         ParseStructPullPrimitives($struct,$name,$varname,$env);
1618         deindent;
1619         pidl "}";
1620         pidl "if (ndr_flags & NDR_BUFFERS) {";
1621         indent;
1622         ParseStructPullDeferred($struct,$name,$varname,$env);
1623         deindent;
1624         pidl "}";
1625
1626         end_flags($struct);
1627 }
1628
1629 #####################################################################
1630 # calculate size of ndr struct
1631 sub ParseStructNdrSize($$$)
1632 {
1633         my ($t, $name, $varname) = @_;
1634         my $sizevar;
1635
1636         if (my $flags = has_property($t, "flag")) {
1637                 pidl "flags |= $flags;";
1638         }
1639         pidl "return ndr_size_struct($varname, flags, (ndr_push_flags_fn_t)ndr_push_$name);";
1640 }
1641
1642 sub DeclStruct($$$$)
1643 {
1644         my ($e,$t,$name,$varname) = @_;
1645         return ($t ne "pull"?"const ":"") . "struct $name *$varname";
1646 }
1647
1648 sub ArgsStructNdrSize($$$)
1649 {
1650         my ($d, $name, $varname) = @_;
1651         return "const struct $name *$varname, int flags";
1652 }
1653
1654 $typefamily{STRUCT} = {
1655         PUSH_FN_BODY => \&ParseStructPush,
1656         DECL => \&DeclStruct,
1657         PULL_FN_BODY => \&ParseStructPull,
1658         PRINT_FN_BODY => \&ParseStructPrint,
1659         SIZE_FN_BODY => \&ParseStructNdrSize,
1660         SIZE_FN_ARGS => \&ArgsStructNdrSize,
1661 };
1662
1663 #####################################################################
1664 # calculate size of ndr struct
1665 sub ParseUnionNdrSize($$$)
1666 {
1667         my ($t, $name, $varname) = @_;
1668         my $sizevar;
1669
1670         if (my $flags = has_property($t, "flag")) {
1671                 pidl "flags |= $flags;";
1672         }
1673
1674         pidl "return ndr_size_union($varname, flags, level, (ndr_push_flags_fn_t)ndr_push_$name);";
1675 }
1676
1677 #####################################################################
1678 # parse a union - push side
1679 sub ParseUnionPush($$$)
1680 {
1681         my ($e,$name,$varname) = @_;
1682         my $have_default = 0;
1683
1684         pidl "int level;";
1685
1686         start_flags($e);
1687
1688         pidl "level = ndr_push_get_switch_value(ndr, $varname);";
1689
1690         pidl "if (ndr_flags & NDR_SCALARS) {";
1691         indent;
1692
1693         if (defined($e->{SWITCH_TYPE})) {
1694                 pidl "NDR_CHECK(ndr_push_$e->{SWITCH_TYPE}(ndr, NDR_SCALARS, level));";
1695         }
1696
1697         pidl "switch (level) {";
1698         indent;
1699         foreach my $el (@{$e->{ELEMENTS}}) {
1700                 if ($el->{CASE} eq "default") {
1701                         $have_default = 1;
1702                 }
1703                 pidl "$el->{CASE}:";
1704
1705                 if ($el->{TYPE} ne "EMPTY") {
1706                         indent;
1707                         if (defined($e->{PROPERTIES}{relative_base})) {
1708                                 pidl "NDR_CHECK(ndr_push_align(ndr, $el->{ALIGN}));";
1709                                 # set the current offset as base for relative pointers
1710                                 # and store it based on the toplevel struct/union
1711                                 pidl "NDR_CHECK(ndr_push_setup_relative_base_offset1(ndr, $varname, ndr->offset));";
1712                         }
1713                         DeclareArrayVariables($el);
1714                         ParseElementPush($el, "ndr", {$el->{NAME} => "$varname->$el->{NAME}"}, 1, 0);
1715                         deindent;
1716                 }
1717                 pidl "break;";
1718                 pidl "";
1719         }
1720         if (! $have_default) {
1721                 pidl "default:";
1722                 pidl "\treturn ndr_push_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);";
1723         }
1724         deindent;
1725         pidl "}";
1726         deindent;
1727         pidl "}";
1728         pidl "if (ndr_flags & NDR_BUFFERS) {";
1729         indent;
1730         if (defined($e->{PROPERTIES}{relative_base})) {
1731                 # retrieve the current offset as base for relative pointers
1732                 # based on the toplevel struct/union
1733                 pidl "NDR_CHECK(ndr_push_setup_relative_base_offset2(ndr, $varname));";
1734         }
1735         pidl "switch (level) {";
1736         indent;
1737         foreach my $el (@{$e->{ELEMENTS}}) {
1738                 pidl "$el->{CASE}:";
1739                 if ($el->{TYPE} ne "EMPTY") {
1740                         indent;
1741                         ParseElementPush($el, "ndr", {$el->{NAME} => "$varname->$el->{NAME}"}, 0, 1);
1742                         deindent;
1743                 }
1744                 pidl "break;";
1745                 pidl "";
1746         }
1747         if (! $have_default) {
1748                 pidl "default:";
1749                 pidl "\treturn ndr_push_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);";
1750         }
1751         deindent;
1752         pidl "}";
1753
1754         deindent;
1755         pidl "}";
1756         end_flags($e);
1757 }
1758
1759 #####################################################################
1760 # print a union
1761 sub ParseUnionPrint($$$)
1762 {
1763         my ($e,$name,$varname) = @_;
1764         my $have_default = 0;
1765
1766         pidl "int level;";
1767         foreach my $el (@{$e->{ELEMENTS}}) {
1768                 DeclareArrayVariables($el);
1769         }
1770
1771         start_flags($e);
1772
1773         pidl "level = ndr_print_get_switch_value(ndr, $varname);";
1774
1775         pidl "ndr_print_union(ndr, name, level, \"$name\");";
1776
1777         pidl "switch (level) {";
1778         indent;
1779         foreach my $el (@{$e->{ELEMENTS}}) {
1780                 if ($el->{CASE} eq "default") {
1781                         $have_default = 1;
1782                 }
1783                 pidl "$el->{CASE}:";
1784                 if ($el->{TYPE} ne "EMPTY") {
1785                         indent;
1786                         ParseElementPrint($el, "$varname->$el->{NAME}", {});
1787                         deindent;
1788                 }
1789                 pidl "break;";
1790                 pidl "";
1791         }
1792         if (! $have_default) {
1793                 pidl "default:";
1794                 pidl "\tndr_print_bad_level(ndr, name, level);";
1795         }
1796         deindent;
1797         pidl "}";
1798
1799         end_flags($e);
1800 }
1801
1802 sub ParseUnionPullPrimitives($$$$)
1803 {
1804         my ($e,$name,$varname,$switch_type) = @_;
1805         my $have_default = 0;
1806
1807         if (defined($switch_type)) {
1808                 pidl "NDR_CHECK(ndr_pull_$switch_type(ndr, NDR_SCALARS, &_level));";
1809                 pidl "if (_level != level) {";
1810                 pidl "\treturn ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value %u for $name\", _level);";
1811                 pidl "}";
1812         }
1813
1814         pidl "switch (level) {";
1815         indent;
1816         foreach my $el (@{$e->{ELEMENTS}}) {
1817                 if ($el->{CASE} eq "default") {
1818                         $have_default = 1;
1819                 }
1820                 pidl "$el->{CASE}: {";
1821
1822                 if ($el->{TYPE} ne "EMPTY") {
1823                         indent;
1824                         DeclarePtrVariables($el);
1825                         DeclareArrayVariables($el);
1826                         if (defined($e->{PROPERTIES}{relative_base})) {
1827                                 pidl "NDR_CHECK(ndr_pull_align(ndr, $el->{ALIGN}));";
1828                                 # set the current offset as base for relative pointers
1829                                 # and store it based on the toplevel struct/union
1830                                 pidl "NDR_CHECK(ndr_pull_setup_relative_base_offset1(ndr, $varname, ndr->offset));";
1831                         }
1832                         ParseElementPull($el, "ndr", {$el->{NAME} => "$varname->$el->{NAME}"}, 1, 0);
1833                         deindent;
1834                 }
1835                 pidl "break; }";
1836                 pidl "";
1837         }
1838         if (! $have_default) {
1839                 pidl "default:";
1840                 pidl "\treturn ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);";
1841         }
1842         deindent;
1843         pidl "}";
1844 }
1845
1846 sub ParseUnionPullDeferred($$$)
1847 {
1848         my ($e,$name,$varname) = @_;
1849         my $have_default = 0;
1850
1851         if (defined($e->{PROPERTIES}{relative_base})) {
1852                 # retrieve the current offset as base for relative pointers
1853                 # based on the toplevel struct/union
1854                 pidl "NDR_CHECK(ndr_pull_setup_relative_base_offset2(ndr, $varname));";
1855         }
1856         pidl "switch (level) {";
1857         indent;
1858         foreach my $el (@{$e->{ELEMENTS}}) {
1859                 if ($el->{CASE} eq "default") {
1860                         $have_default = 1;
1861                 }
1862
1863                 pidl "$el->{CASE}:";
1864                 if ($el->{TYPE} ne "EMPTY") {
1865                         indent;
1866                         ParseElementPull($el, "ndr", {$el->{NAME} => "$varname->$el->{NAME}"}, 0, 1);
1867                         deindent;
1868                 }
1869                 pidl "break;";
1870                 pidl "";
1871         }
1872         if (! $have_default) {
1873                 pidl "default:";
1874                 pidl "\treturn ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);";
1875         }
1876         deindent;
1877         pidl "}";
1878
1879
1880 }
1881
1882 #####################################################################
1883 # parse a union - pull side
1884 sub ParseUnionPull($$$)
1885 {
1886         my ($e,$name,$varname) = @_;
1887         my $switch_type = $e->{SWITCH_TYPE};
1888
1889         pidl "int level;";
1890         if (defined($switch_type)) {
1891                 if (Parse::Pidl::Typelist::typeIs($switch_type, "ENUM")) {
1892                         $switch_type = Parse::Pidl::Typelist::enum_type_fn(getType($switch_type)->{DATA});
1893                 }
1894                 pidl mapTypeName($switch_type) . " _level;";
1895         }
1896
1897         my %double_cases = ();
1898         foreach my $el (@{$e->{ELEMENTS}}) {
1899                 next if ($el->{TYPE} eq "EMPTY");
1900                 next if ($double_cases{"$el->{NAME}"});
1901                 DeclareMemCtxVariables($el);
1902                 $double_cases{"$el->{NAME}"} = 1;
1903         }
1904
1905         start_flags($e);
1906
1907         pidl "level = ndr_pull_get_switch_value(ndr, $varname);";
1908
1909         pidl "if (ndr_flags & NDR_SCALARS) {";
1910         indent;
1911         ParseUnionPullPrimitives($e,$name,$varname,$switch_type);
1912         deindent;
1913         pidl "}";
1914
1915         pidl "if (ndr_flags & NDR_BUFFERS) {";
1916         indent;
1917         ParseUnionPullDeferred($e,$name,$varname);
1918         deindent;
1919         pidl "}";
1920
1921         add_deferred();
1922
1923         end_flags($e);
1924 }
1925
1926 sub DeclUnion($$$$)
1927 {
1928         my ($e,$t,$name,$varname) = @_;
1929         return ($t ne "pull"?"const ":"") . "union $name *$varname";
1930 }
1931
1932 sub ArgsUnionNdrSize($$)
1933 {
1934         my ($d,$name) = @_;
1935         return "const union $name *r, uint32_t level, int flags";
1936 }
1937
1938 $typefamily{UNION} = {
1939         PUSH_FN_BODY => \&ParseUnionPush,
1940         DECL => \&DeclUnion,
1941         PULL_FN_BODY => \&ParseUnionPull,
1942         PRINT_FN_BODY => \&ParseUnionPrint,
1943         SIZE_FN_ARGS => \&ArgsUnionNdrSize,
1944         SIZE_FN_BODY => \&ParseUnionNdrSize,
1945 };
1946
1947 #####################################################################
1948 # parse a typedef - push side
1949 sub ParseTypedefPush($$$)
1950 {
1951         my($e,$name,$varname) = @_;
1952
1953         $typefamily{$e->{DATA}->{TYPE}}->{PUSH_FN_BODY}->($e->{DATA}, $name, $varname);
1954 }
1955
1956 #####################################################################
1957 # parse a typedef - pull side
1958 sub ParseTypedefPull($$$)
1959 {
1960         my($e,$name,$varname) = @_;
1961
1962         $typefamily{$e->{DATA}->{TYPE}}->{PULL_FN_BODY}->($e->{DATA}, $name, $varname);
1963 }
1964
1965 #####################################################################
1966 # parse a typedef - print side
1967 sub ParseTypedefPrint($$$)
1968 {
1969         my($e,$name,$varname) = @_;
1970
1971         $typefamily{$e->{DATA}->{TYPE}}->{PRINT_FN_BODY}->($e->{DATA}, $name, $varname);
1972 }
1973
1974 #####################################################################
1975 ## calculate the size of a structure
1976 sub ParseTypedefNdrSize($$$)
1977 {
1978         my($t,$name,$varname) = @_;
1979
1980         $typefamily{$t->{DATA}->{TYPE}}->{SIZE_FN_BODY}->($t->{DATA}, $name, $varname);
1981 }
1982
1983 sub DeclTypedef($$$$)
1984 {
1985         my ($e, $t, $name, $varname) = @_;
1986
1987         return $typefamily{$e->{DATA}->{TYPE}}->{DECL}->($e->{DATA}, $t, $name, $varname);
1988 }
1989
1990 sub ArgsTypedefNdrSize($$$)
1991 {
1992         my ($d, $name, $varname) = @_;
1993         return $typefamily{$d->{DATA}->{TYPE}}->{SIZE_FN_ARGS}->($d->{DATA}, $name, $varname);
1994 }
1995
1996 $typefamily{TYPEDEF} = {
1997         PUSH_FN_BODY => \&ParseTypedefPush,
1998         DECL => \&DeclTypedef,
1999         PULL_FN_BODY => \&ParseTypedefPull,
2000         PRINT_FN_BODY => \&ParseTypedefPrint,
2001         SIZE_FN_ARGS => \&ArgsTypedefNdrSize,
2002         SIZE_FN_BODY => \&ParseTypedefNdrSize,
2003 };
2004
2005 #####################################################################
2006 # parse a function - print side
2007 sub ParseFunctionPrint($)
2008 {
2009         my($fn) = shift;
2010
2011         pidl_hdr "void ndr_print_$fn->{NAME}(struct ndr_print *ndr, const char *name, int flags, const struct $fn->{NAME} *r);";
2012
2013         return if has_property($fn, "noprint");
2014
2015         pidl "_PUBLIC_ void ndr_print_$fn->{NAME}(struct ndr_print *ndr, const char *name, int flags, const struct $fn->{NAME} *r)";
2016         pidl "{";
2017         indent;
2018
2019         foreach my $e (@{$fn->{ELEMENTS}}) {
2020                 DeclareArrayVariables($e);
2021         }
2022
2023         pidl "ndr_print_struct(ndr, name, \"$fn->{NAME}\");";
2024         pidl "ndr->depth++;";
2025
2026         pidl "if (flags & NDR_SET_VALUES) {";
2027         pidl "\tndr->flags |= LIBNDR_PRINT_SET_VALUES;";
2028         pidl "}";
2029
2030         pidl "if (flags & NDR_IN) {";
2031         indent;
2032         pidl "ndr_print_struct(ndr, \"in\", \"$fn->{NAME}\");";
2033         pidl "ndr->depth++;";
2034
2035         my $env = GenerateFunctionInEnv($fn);
2036         EnvSubstituteValue($env, $fn);
2037
2038         foreach my $e (@{$fn->{ELEMENTS}}) {
2039                 if (grep(/in/,@{$e->{DIRECTION}})) {
2040                         ParseElementPrint($e, $env->{$e->{NAME}}, $env);
2041                 }
2042         }
2043         pidl "ndr->depth--;";
2044         deindent;
2045         pidl "}";
2046
2047         pidl "if (flags & NDR_OUT) {";
2048         indent;
2049         pidl "ndr_print_struct(ndr, \"out\", \"$fn->{NAME}\");";
2050         pidl "ndr->depth++;";
2051
2052         $env = GenerateFunctionOutEnv($fn);
2053         foreach my $e (@{$fn->{ELEMENTS}}) {
2054                 if (grep(/out/,@{$e->{DIRECTION}})) {
2055                         ParseElementPrint($e, $env->{$e->{NAME}}, $env);
2056                 }
2057         }
2058         if ($fn->{RETURN_TYPE}) {
2059                 pidl "ndr_print_$fn->{RETURN_TYPE}(ndr, \"result\", r->out.result);";
2060         }
2061         pidl "ndr->depth--;";
2062         deindent;
2063         pidl "}";
2064
2065         pidl "ndr->depth--;";
2066         deindent;
2067         pidl "}";
2068         pidl "";
2069 }
2070
2071 #####################################################################
2072 # parse a function
2073 sub ParseFunctionPush($)
2074 {
2075         my($fn) = shift;
2076
2077         fn_declare("push", $fn, "NTSTATUS ndr_push_$fn->{NAME}(struct ndr_push *ndr, int flags, const struct $fn->{NAME} *r)") or return;
2078
2079         return if has_property($fn, "nopush");
2080
2081         pidl "{";
2082         indent;
2083
2084         foreach my $e (@{$fn->{ELEMENTS}}) {
2085                 DeclareArrayVariables($e);
2086         }
2087
2088         pidl "if (flags & NDR_IN) {";
2089         indent;
2090
2091         my $env = GenerateFunctionInEnv($fn);
2092
2093         EnvSubstituteValue($env, $fn);
2094
2095         foreach my $e (@{$fn->{ELEMENTS}}) {
2096                 if (grep(/in/,@{$e->{DIRECTION}})) {
2097                         ParseElementPush($e, "ndr", $env, 1, 1);
2098                 }
2099         }
2100
2101         deindent;
2102         pidl "}";
2103
2104         pidl "if (flags & NDR_OUT) {";
2105         indent;
2106
2107         $env = GenerateFunctionOutEnv($fn);
2108         foreach my $e (@{$fn->{ELEMENTS}}) {
2109                 if (grep(/out/,@{$e->{DIRECTION}})) {
2110                         ParseElementPush($e, "ndr", $env, 1, 1);
2111                 }
2112         }
2113
2114         if ($fn->{RETURN_TYPE}) {
2115                 pidl "NDR_CHECK(ndr_push_$fn->{RETURN_TYPE}(ndr, NDR_SCALARS, r->out.result));";
2116         }
2117
2118         deindent;
2119         pidl "}";
2120         pidl "return NT_STATUS_OK;";
2121         deindent;
2122         pidl "}";
2123         pidl "";
2124 }
2125
2126 sub AllocateArrayLevel($$$$$)
2127 {
2128         my ($e,$l,$ndr,$env,$size) = @_;
2129
2130         my $var = ParseExpr($e->{NAME}, $env, $e->{ORIGINAL});
2131
2132         my $pl = GetPrevLevel($e, $l);
2133         if (defined($pl) and
2134             $pl->{TYPE} eq "POINTER" and
2135             $pl->{POINTER_TYPE} eq "ref"
2136             and not $l->{IS_ZERO_TERMINATED}) {
2137                 pidl "if (ndr->flags & LIBNDR_FLAG_REF_ALLOC) {";
2138                 pidl "\tNDR_PULL_ALLOC_N($ndr, $var, $size);";
2139                 pidl "}";
2140                 if (grep(/in/,@{$e->{DIRECTION}}) and
2141                     grep(/out/,@{$e->{DIRECTION}})) {
2142                         pidl "memcpy(r->out.$e->{NAME}, r->in.$e->{NAME}, $size * sizeof(*r->in.$e->{NAME}));";
2143                 }
2144                 return;
2145         }
2146
2147         pidl "NDR_PULL_ALLOC_N($ndr, $var, $size);";
2148 }
2149
2150 #####################################################################
2151 # parse a function
2152 sub ParseFunctionPull($)
2153 {
2154         my($fn) = shift;
2155
2156         # pull function args
2157         fn_declare("pull", $fn, "NTSTATUS ndr_pull_$fn->{NAME}(struct ndr_pull *ndr, int flags, struct $fn->{NAME} *r)") or return;
2158
2159         pidl "{";
2160         indent;
2161
2162         # declare any internal pointers we need
2163         foreach my $e (@{$fn->{ELEMENTS}}) {
2164                 DeclarePtrVariables($e);
2165                 DeclareArrayVariables($e);
2166         }
2167
2168         my %double_cases = ();
2169         foreach my $e (@{$fn->{ELEMENTS}}) {
2170                 next if ($e->{TYPE} eq "EMPTY");
2171                 next if ($double_cases{"$e->{NAME}"});
2172                 DeclareMemCtxVariables($e);
2173                 $double_cases{"$e->{NAME}"} = 1;
2174         }
2175
2176         pidl "if (flags & NDR_IN) {";
2177         indent;
2178
2179         # auto-init the out section of a structure. I originally argued that
2180         # this was a bad idea as it hides bugs, but coping correctly
2181         # with initialisation and not wiping ref vars is turning
2182         # out to be too tricky (tridge)
2183         foreach my $e (@{$fn->{ELEMENTS}}) {
2184                 next unless grep(/out/, @{$e->{DIRECTION}});
2185                 pidl "ZERO_STRUCT(r->out);";
2186                 pidl "";
2187                 last;
2188         }
2189
2190         my $env = GenerateFunctionInEnv($fn);
2191
2192         foreach my $e (@{$fn->{ELEMENTS}}) {
2193                 next unless (grep(/in/, @{$e->{DIRECTION}}));
2194                 ParseElementPull($e, "ndr", $env, 1, 1);
2195         }
2196
2197         # allocate the "simple" out ref variables. FIXME: Shouldn't this have it's
2198         # own flag rather than be in NDR_IN ?
2199
2200         foreach my $e (@{$fn->{ELEMENTS}}) {
2201                 next unless (grep(/out/, @{$e->{DIRECTION}}));
2202                 next unless ($e->{LEVELS}[0]->{TYPE} eq "POINTER" and
2203                              $e->{LEVELS}[0]->{POINTER_TYPE} eq "ref");
2204                 next if (($e->{LEVELS}[1]->{TYPE} eq "DATA") and
2205                                  ($e->{LEVELS}[1]->{DATA_TYPE} eq "string"));
2206                 next if (($e->{LEVELS}[1]->{TYPE} eq "ARRAY")
2207                         and   $e->{LEVELS}[1]->{IS_ZERO_TERMINATED});
2208
2209                 if ($e->{LEVELS}[1]->{TYPE} eq "ARRAY") {
2210                         my $size = ParseExprExt($e->{LEVELS}[1]->{SIZE_IS}, $env, $e->{ORIGINAL}, check_null_pointer($e, $env, \&pidl, "return NT_STATUS_INVALID_PARAMETER_MIX;"),
2211                                 check_fully_dereferenced($e, $env));
2212
2213                         pidl "NDR_PULL_ALLOC_N(ndr, r->out.$e->{NAME}, $size);";
2214
2215                         if (grep(/in/, @{$e->{DIRECTION}})) {
2216                                 pidl "memcpy(r->out.$e->{NAME}, r->in.$e->{NAME}, $size * sizeof(*r->in.$e->{NAME}));";
2217                         } else {
2218                                 pidl "memset(r->out.$e->{NAME}, 0, $size * sizeof(*r->out.$e->{NAME}));";
2219                         }
2220                 } else {
2221                         pidl "NDR_PULL_ALLOC(ndr, r->out.$e->{NAME});";
2222
2223                         if (grep(/in/, @{$e->{DIRECTION}})) {
2224                                 pidl "*r->out.$e->{NAME} = *r->in.$e->{NAME};";
2225                         } else {
2226                                 pidl "ZERO_STRUCTP(r->out.$e->{NAME});";
2227                         }
2228                 }
2229         }
2230
2231         add_deferred();
2232         deindent;
2233         pidl "}";
2234
2235         pidl "if (flags & NDR_OUT) {";
2236         indent;
2237
2238         $env = GenerateFunctionOutEnv($fn);
2239         foreach my $e (@{$fn->{ELEMENTS}}) {
2240                 next unless grep(/out/, @{$e->{DIRECTION}});
2241                 ParseElementPull($e, "ndr", $env, 1, 1);
2242         }
2243
2244         if ($fn->{RETURN_TYPE}) {
2245                 pidl "NDR_CHECK(ndr_pull_$fn->{RETURN_TYPE}(ndr, NDR_SCALARS, &r->out.result));";
2246         }
2247
2248         add_deferred();
2249         deindent;
2250         pidl "}";
2251
2252         pidl "return NT_STATUS_OK;";
2253         deindent;
2254         pidl "}";
2255         pidl "";
2256 }
2257
2258 #####################################################################
2259 # produce a function call table
2260 sub FunctionTable($)
2261 {
2262         my($interface) = shift;
2263         my $count = 0;
2264         my $uname = uc $interface->{NAME};
2265
2266         return if ($#{$interface->{FUNCTIONS}}+1 == 0);
2267         return unless defined ($interface->{PROPERTIES}->{uuid});
2268
2269         pidl "static const struct dcerpc_interface_call $interface->{NAME}\_calls[] = {";
2270         foreach my $d (@{$interface->{FUNCTIONS}}) {
2271                 next if not defined($d->{OPNUM});
2272                 pidl "\t{";
2273                 pidl "\t\t\"$d->{NAME}\",";
2274                 pidl "\t\tsizeof(struct $d->{NAME}),";
2275                 pidl "\t\t(ndr_push_flags_fn_t) ndr_push_$d->{NAME},";
2276                 pidl "\t\t(ndr_pull_flags_fn_t) ndr_pull_$d->{NAME},";
2277                 pidl "\t\t(ndr_print_function_t) ndr_print_$d->{NAME},";
2278                 pidl "\t\t".($d->{ASYNC}?"True":"False").",";
2279                 pidl "\t},";
2280                 $count++;
2281         }
2282         pidl "\t{ NULL, 0, NULL, NULL, NULL, False }";
2283         pidl "};";
2284         pidl "";
2285
2286         pidl "static const char * const $interface->{NAME}\_endpoint_strings[] = {";
2287         foreach my $ep (@{$interface->{ENDPOINTS}}) {
2288                 pidl "\t$ep, ";
2289         }
2290         my $endpoint_count = $#{$interface->{ENDPOINTS}}+1;
2291
2292         pidl "};";
2293         pidl "";
2294
2295         pidl "static const struct dcerpc_endpoint_list $interface->{NAME}\_endpoints = {";
2296         pidl "\t.count\t= $endpoint_count,";
2297         pidl "\t.names\t= $interface->{NAME}\_endpoint_strings";
2298         pidl "};";
2299         pidl "";
2300
2301         if (! defined $interface->{PROPERTIES}->{authservice}) {
2302                 $interface->{PROPERTIES}->{authservice} = "\"host\"";
2303         }
2304
2305         my @a = split / /, $interface->{PROPERTIES}->{authservice};
2306         my $authservice_count = $#a + 1;
2307
2308         pidl "static const char * const $interface->{NAME}\_authservice_strings[] = {";
2309         foreach my $ap (@a) {
2310                 pidl "\t$ap, ";
2311         }
2312         pidl "};";
2313         pidl "";
2314
2315         pidl "static const struct dcerpc_authservice_list $interface->{NAME}\_authservices = {";
2316         pidl "\t.count\t= $endpoint_count,";
2317         pidl "\t.names\t= $interface->{NAME}\_authservice_strings";
2318         pidl "};";
2319         pidl "";
2320
2321         pidl "\nconst struct dcerpc_interface_table dcerpc_table_$interface->{NAME} = {";
2322         pidl "\t.name\t\t= \"$interface->{NAME}\",";
2323         pidl "\t.syntax_id\t= {";
2324         pidl "\t\t" . print_uuid($interface->{UUID}) .",";
2325         pidl "\t\tDCERPC_$uname\_VERSION";
2326         pidl "\t},";
2327         pidl "\t.helpstring\t= DCERPC_$uname\_HELPSTRING,";
2328         pidl "\t.num_calls\t= $count,";
2329         pidl "\t.calls\t\t= $interface->{NAME}\_calls,";
2330         pidl "\t.endpoints\t= &$interface->{NAME}\_endpoints,";
2331         pidl "\t.authservices\t= &$interface->{NAME}\_authservices";
2332         pidl "};";
2333         pidl "";
2334
2335 }
2336
2337 #####################################################################
2338 # generate include statements for imported idl files
2339 sub HeaderImport
2340 {
2341         my @imports = @_;
2342         foreach (@imports) {
2343                 s/\.idl\"$//;
2344                 s/^\"//;
2345                 pidl choose_header("librpc/gen_ndr/ndr_$_\.h", "gen_ndr/ndr_$_.h");
2346         }
2347 }
2348
2349 #####################################################################
2350 # generate include statements for included header files
2351 sub HeaderInclude
2352 {
2353         my @includes = @_;
2354         foreach (@includes) {
2355                 pidl_hdr "#include $_";
2356         }
2357 }
2358
2359 #####################################################################
2360 # generate prototypes and defines for the interface definitions
2361 # FIXME: these prototypes are for the DCE/RPC client functions, not the
2362 # NDR parser and so do not belong here, technically speaking
2363 sub HeaderInterface($)
2364 {
2365         my($interface) = shift;
2366
2367         my $count = 0;
2368
2369         pidl_hdr choose_header("librpc/ndr/libndr.h", "ndr.h");
2370
2371         if (has_property($interface, "object")) {
2372                 pidl choose_header("librpc/gen_ndr/ndr_orpc.h", "ndr/orpc.h");
2373         }
2374
2375         if (defined $interface->{PROPERTIES}->{helper}) {
2376                 HeaderInclude(split / /, $interface->{PROPERTIES}->{helper});
2377         }
2378
2379         if (defined $interface->{PROPERTIES}->{uuid}) {
2380                 my $name = uc $interface->{NAME};
2381                 pidl_hdr "#define DCERPC_$name\_UUID " .
2382                 Parse::Pidl::Util::make_str(lc($interface->{PROPERTIES}->{uuid}));
2383
2384                 if(!defined $interface->{PROPERTIES}->{version}) { $interface->{PROPERTIES}->{version} = "0.0"; }
2385                 pidl_hdr "#define DCERPC_$name\_VERSION $interface->{PROPERTIES}->{version}";
2386
2387                 pidl_hdr "#define DCERPC_$name\_NAME \"$interface->{NAME}\"";
2388
2389                 if(!defined $interface->{PROPERTIES}->{helpstring}) { $interface->{PROPERTIES}->{helpstring} = "NULL"; }
2390                 pidl_hdr "#define DCERPC_$name\_HELPSTRING $interface->{PROPERTIES}->{helpstring}";
2391
2392                 pidl_hdr "extern const struct dcerpc_interface_table dcerpc_table_$interface->{NAME};";
2393                 pidl_hdr "NTSTATUS dcerpc_server_$interface->{NAME}_init(void);";
2394         }
2395
2396         foreach (@{$interface->{FUNCTIONS}}) {
2397                 next if has_property($_, "noopnum");
2398                 next if grep(/$_->{NAME}/,@{$interface->{INHERITED_FUNCTIONS}});
2399                 my $u_name = uc $_->{NAME};
2400
2401                 my $val = sprintf("0x%02x", $count);
2402                 if (defined($interface->{BASE})) {
2403                         $val .= " + DCERPC_" . uc $interface->{BASE} . "_CALL_COUNT";
2404                 }
2405
2406                 pidl_hdr "#define DCERPC_$u_name ($val)";
2407
2408                 pidl_hdr "";
2409                 $count++;
2410         }
2411
2412         my $val = $count;
2413
2414         if (defined($interface->{BASE})) {
2415                 $val .= " + DCERPC_" . uc $interface->{BASE} . "_CALL_COUNT";
2416         }
2417
2418         pidl_hdr "#define DCERPC_" . uc $interface->{NAME} . "_CALL_COUNT ($val)";
2419
2420 }
2421
2422 sub ParseTypePush($$)
2423 {
2424         my ($e, $varname) = @_;
2425
2426         # save the old relative_base_offset
2427         pidl "uint32_t _save_relative_base_offset = ndr_push_get_relative_base_offset(ndr);" if defined(has_property($e, "relative_base"));
2428         $typefamily{$e->{TYPE}}->{PUSH_FN_BODY}->($e, $e->{NAME}, $varname);
2429         # restore the old relative_base_offset
2430         pidl "ndr_push_restore_relative_base_offset(ndr, _save_relative_base_offset);" if defined(has_property($e, "relative_base"));
2431 }
2432
2433 sub ParseTypePushFunction($$)
2434 {
2435         my ($e, $varname) = @_;
2436
2437         my $args = $typefamily{$e->{TYPE}}->{DECL}->($e, "push", $e->{NAME}, $varname);
2438         fn_declare("push", $e, "NTSTATUS ndr_push_$e->{NAME}(struct ndr_push *ndr, int ndr_flags, $args)") or return;
2439
2440         pidl "{";
2441         indent;
2442         ParseTypePush($e, $varname);
2443         pidl "return NT_STATUS_OK;";
2444         deindent;
2445         pidl "}";
2446         pidl "";;
2447 }
2448
2449 sub ParseTypePull($$)
2450 {
2451         my ($e, $varname) = @_;
2452
2453         # save the old relative_base_offset
2454         pidl "uint32_t _save_relative_base_offset = ndr_pull_get_relative_base_offset(ndr);" if defined(has_property($e, "relative_base"));
2455         $typefamily{$e->{TYPE}}->{PULL_FN_BODY}->($e, $e->{NAME}, $varname);
2456         # restore the old relative_base_offset
2457         pidl "ndr_pull_restore_relative_base_offset(ndr, _save_relative_base_offset);" if defined(has_property($e, "relative_base"));
2458 }
2459
2460
2461 sub ParseTypePullFunction($$)
2462 {
2463         my ($e, $varname) = @_;
2464
2465         my $args = $typefamily{$e->{TYPE}}->{DECL}->($e, "pull", $e->{NAME}, $varname);
2466
2467         fn_declare("pull", $e, "NTSTATUS ndr_pull_$e->{NAME}(struct ndr_pull *ndr, int ndr_flags, $args)") or return;
2468
2469         pidl "{";
2470         indent;
2471         ParseTypePull($e, $varname);
2472         pidl "return NT_STATUS_OK;";
2473         deindent;
2474         pidl "}";
2475         pidl "";
2476 }
2477
2478 sub ParseTypePrint($$)
2479 {
2480         my ($e, $varname) = @_;
2481
2482         $typefamily{$e->{TYPE}}->{PRINT_FN_BODY}->($e, $e->{NAME}, $varname);
2483 }
2484
2485 sub ParseTypePrintFunction($$)
2486 {
2487         my ($e, $varname) = @_;
2488         my $args = $typefamily{$e->{TYPE}}->{DECL}->($e, "print", $e->{NAME}, $varname);
2489
2490         pidl_hdr "void ndr_print_$e->{NAME}(struct ndr_print *ndr, const char *name, $args);";
2491
2492         return if (has_property($e, "noprint"));
2493
2494         pidl "_PUBLIC_ void ndr_print_$e->{NAME}(struct ndr_print *ndr, const char *name, $args)";
2495         pidl "{";
2496         indent;
2497         ParseTypePrint($e, $varname);
2498         deindent;
2499         pidl "}";
2500         pidl "";
2501 }
2502
2503 sub ParseTypeNdrSize($)
2504 {
2505         my ($t) = @_;
2506
2507         my $varname = "r";
2508         my $tf = $typefamily{$t->{TYPE}};
2509         my $args = $tf->{SIZE_FN_ARGS}->($t, $t->{NAME}, $varname);
2510
2511         fn_declare("size", $t, "size_t ndr_size_$t->{NAME}($args)") or return;
2512
2513         pidl "{";
2514         indent;
2515         $typefamily{$t->{TYPE}}->{SIZE_FN_BODY}->($t, $t->{NAME}, $varname);
2516         deindent;
2517         pidl "}";
2518         pidl "";
2519 }
2520
2521 #####################################################################
2522 # parse the interface definitions
2523 sub ParseInterface($$)
2524 {
2525         my($interface,$needed) = @_;
2526
2527         pidl_hdr "#ifndef _HEADER_NDR_$interface->{NAME}";
2528         pidl_hdr "#define _HEADER_NDR_$interface->{NAME}";
2529
2530         pidl_hdr "";
2531
2532         if ($needed->{"compression"}) {
2533                 pidl choose_header("librpc/ndr/ndr_compression.h", "ndr/compression.h");
2534         }
2535
2536         HeaderInterface($interface);
2537
2538         # Typedefs
2539         foreach my $d (@{$interface->{TYPES}}) {
2540                 ($needed->{"push_$d->{NAME}"}) && ParseTypePushFunction($d, "r");
2541                 ($needed->{"pull_$d->{NAME}"}) && ParseTypePullFunction($d, "r");
2542                 ($needed->{"print_$d->{NAME}"}) && ParseTypePrintFunction($d, "r");
2543
2544                 # Make sure we don't generate a function twice...
2545                 $needed->{"push_$d->{NAME}"} = $needed->{"pull_$d->{NAME}"} =
2546                         $needed->{"print_$d->{NAME}"} = 0;
2547
2548                 ($needed->{"ndr_size_$d->{NAME}"}) && ParseTypeNdrSize($d);
2549         }
2550
2551         # Functions
2552         foreach my $d (@{$interface->{FUNCTIONS}}) {
2553                 ($needed->{"push_$d->{NAME}"}) && ParseFunctionPush($d);
2554                 ($needed->{"pull_$d->{NAME}"}) && ParseFunctionPull($d);
2555                 ($needed->{"print_$d->{NAME}"}) && ParseFunctionPrint($d);
2556
2557                 # Make sure we don't generate a function twice...
2558                 $needed->{"push_$d->{NAME}"} = $needed->{"pull_$d->{NAME}"} =
2559                         $needed->{"print_$d->{NAME}"} = 0;
2560         }
2561
2562         FunctionTable($interface);
2563
2564         pidl_hdr "#endif /* _HEADER_NDR_$interface->{NAME} */";
2565 }
2566
2567 sub GenerateIncludes()
2568 {
2569         if (is_intree()) {
2570                 pidl "#include \"includes.h\"";
2571         } else {
2572                 pidl "#define _GNU_SOURCE";
2573                 pidl "#include <stdint.h>";
2574                 pidl "#include <stdlib.h>";
2575                 pidl "#include <stdio.h>";
2576                 pidl "#include <stdbool.h>";
2577                 pidl "#include <stdarg.h>";
2578                 pidl "#include <string.h>";
2579         }
2580
2581         # Samba3 has everything in include/includes.h
2582         if (is_intree() != 3) {
2583                 pidl choose_header("libcli/util/nterr.h", "core/nterr.h");
2584                 pidl choose_header("librpc/gen_ndr/ndr_misc.h", "gen_ndr/ndr_misc.h");
2585                 pidl choose_header("librpc/gen_ndr/ndr_dcerpc.h", "gen_ndr/ndr_dcerpc.h");
2586                 pidl choose_header("librpc/rpc/dcerpc.h", "dcerpc.h"); #FIXME: This shouldn't be here!
2587         }
2588 }
2589
2590 #####################################################################
2591 # parse a parsed IDL structure back into an IDL file
2592 sub Parse($$$)
2593 {
2594         my($ndr,$gen_header,$ndr_header) = @_;
2595
2596         $tabs = "";
2597         $res = "";
2598
2599         $res_hdr = "";
2600         pidl_hdr "/* header auto-generated by pidl */";
2601         pidl_hdr "";
2602         pidl_hdr "#include \"$gen_header\"" if ($gen_header);
2603         pidl_hdr "";
2604
2605         pidl "/* parser auto-generated by pidl */";
2606         pidl "";
2607         GenerateIncludes();
2608         pidl "#include \"$ndr_header\"" if ($ndr_header);
2609         pidl "";
2610
2611         my %needed = ();
2612
2613         foreach (@{$ndr}) {
2614                 ($_->{TYPE} eq "INTERFACE") && NeededInterface($_, \%needed);
2615         }
2616
2617         foreach (@{$ndr}) {
2618                 ($_->{TYPE} eq "INTERFACE") && ParseInterface($_, \%needed);
2619                 ($_->{TYPE} eq "IMPORT") && HeaderImport(@{$_->{PATHS}});
2620                 ($_->{TYPE} eq "INCLUDE") && HeaderInclude(@{$_->{PATHS}});
2621         }
2622
2623         return ($res_hdr, $res);
2624 }
2625
2626 sub NeededElement($$$)
2627 {
2628         my ($e, $dir, $needed) = @_;
2629
2630         return if ($e->{TYPE} eq "EMPTY");
2631
2632         my @fn = ();
2633         if ($dir eq "print") {
2634                 push(@fn, "print_$e->{REPRESENTATION_TYPE}");
2635         } elsif ($dir eq "pull") {
2636                 push (@fn, "pull_$e->{TYPE}");
2637                 push (@fn, "ndr_$e->{TYPE}_to_$e->{REPRESENTATION_TYPE}")
2638                         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE});
2639         } elsif ($dir eq "push") {
2640                 push (@fn, "push_$e->{TYPE}");
2641                 push (@fn, "ndr_$e->{REPRESENTATION_TYPE}_to_$e->{TYPE}")
2642                         if ($e->{REPRESENTATION_TYPE} ne $e->{TYPE});
2643         } else {
2644                 die("invalid direction `$dir'");
2645         }
2646
2647         foreach (@fn) {
2648                 unless (defined($needed->{$_})) {
2649                         $needed->{$_} = 1;
2650                 }
2651         }
2652 }
2653
2654 sub NeededFunction($$)
2655 {
2656         my ($fn,$needed) = @_;
2657         $needed->{"pull_$fn->{NAME}"} = 1;
2658         $needed->{"push_$fn->{NAME}"} = 1;
2659         $needed->{"print_$fn->{NAME}"} = 1;
2660         foreach my $e (@{$fn->{ELEMENTS}}) {
2661                 $e->{PARENT} = $fn;
2662                 NeededElement($e, $_, $needed) foreach ("pull", "push", "print");
2663         }
2664 }
2665
2666 sub NeededType($$)
2667 {
2668         my ($t,$needed) = @_;
2669         if (has_property($t, "public")) {
2670                 $needed->{"pull_$t->{NAME}"} = 1;
2671                 $needed->{"push_$t->{NAME}"} = 1;
2672                 $needed->{"print_$t->{NAME}"} = 1;
2673         }
2674
2675         if ($t->{DATA}->{TYPE} eq "STRUCT" or $t->{DATA}->{TYPE} eq "UNION") {
2676                 if (has_property($t, "gensize")) {
2677                         $needed->{"ndr_size_$t->{NAME}"} = 1;
2678                 }
2679
2680                 for my $e (@{$t->{DATA}->{ELEMENTS}}) {
2681                         $e->{PARENT} = $t->{DATA};
2682                         if (has_property($e, "compression")) {
2683                                 $needed->{"compression"} = 1;
2684                         }
2685                         NeededElement($e, "pull", $needed) if ($needed->{"pull_$t->{NAME}"});
2686                         NeededElement($e, "push", $needed) if ($needed->{"push_$t->{NAME}"});
2687                         NeededElement($e, "print", $needed) if ($needed->{"print_$t->{NAME}"});
2688                 }
2689         }
2690 }
2691
2692 #####################################################################
2693 # work out what parse functions are needed
2694 sub NeededInterface($$)
2695 {
2696         my ($interface,$needed) = @_;
2697         NeededFunction($_, $needed) foreach (@{$interface->{FUNCTIONS}});
2698         NeededType($_, $needed) foreach (reverse @{$interface->{TYPES}});
2699 }
2700
2701 1;