pidl/lib/Parse/Pidl/Samba4/Python.pm

   1 ###################################################
   2 # Python function wrapper generator
   3 # Copyright jelmer@samba.org 2007-2008
   4 # released under the GNU GPL
   5
   6 package Parse::Pidl::Samba4::Python;
   7
   8 use Exporter;
   9 @ISA = qw(Exporter);
  10
  11 use strict;
  12 use Parse::Pidl qw(warning fatal error);
  13 use Parse::Pidl::Typelist qw(hasType resolveType getType mapTypeName expandAlias bitmap_type_fn enum_type_fn);
  14 use Parse::Pidl::Util qw(has_property ParseExpr unmake_str);
  15 use Parse::Pidl::NDR qw(GetPrevLevel GetNextLevel ContainsDeferred ContainsPipe is_charset_array);
  16 use Parse::Pidl::CUtil qw(get_value_of get_pointer_to);
  17 use Parse::Pidl::Samba4 qw(ArrayDynamicallyAllocated);
  18 use Parse::Pidl::Samba4::Header qw(GenerateFunctionInEnv GenerateFunctionOutEnv EnvSubstituteValue GenerateStructEnv);
  19
  20 use vars qw($VERSION);
  21 $VERSION = '0.01';
  22
  23 sub new($) {
  24         my ($class) = @_;
  25         my $self = { res => "", res_hdr => "", tabs => "",
  26                                  constants => [], constants_uniq => {},
  27                                  module_methods => [],
  28                                  module_objects => [], module_objects_uniq => {},
  29                                  ready_types => [],
  30                                  module_imports => [], module_imports_uniq => {},
  31                                  type_imports => [], type_imports_uniq => {},
  32                                  patch_type_calls => [], prereadycode => [],
  33                                  postreadycode => []};
  34         bless($self, $class);
  35 }
  36
  37 sub pidl_hdr ($$)
  38 {
  39         my $self = shift;
  40         $self->{res_hdr} .= shift;
  41 }
  42
  43 sub pidl($$)
  44 {
  45         my ($self, $d) = @_;
  46         if ($d) {
  47                 if ((!($d =~ /^#/))) {
  48                         $self->{res} .= $self->{tabs};
  49                 }
  50                 $self->{res} .= $d;
  51         }
  52         $self->{res} .= "\n";
  53 }
  54
  55 sub indent($)
  56 {
  57         my ($self) = @_;
  58         $self->{tabs} .= "\t";
  59 }
  60
  61 sub deindent($)
  62 {
  63         my ($self) = @_;
  64         $self->{tabs} = substr($self->{tabs}, 0, -1);
  65 }
  66
  67 sub PrettifyTypeName($$)
  68 {
  69         my ($name, $basename) = @_;
  70
  71         $basename =~ s/^.*\.([^.]+)$/\1/;
  72
  73         $name =~ s/^$basename\_//;
  74
  75
  76         return $name;
  77 }
  78
  79 sub Import
  80 {
  81         my $self = shift;
  82         my @imports = @_;
  83         foreach (@imports) {
  84                 $_ = unmake_str($_);
  85                 s/\.idl$//;
  86                 $self->pidl_hdr("#include \"librpc/gen_ndr/$_\.h\"\n");
  87                 $self->register_module_import("samba.dcerpc.$_");
  88         }
  89 }
  90
  91 sub Const($$)
  92 {
  93     my ($self, $const) = @_;
  94         $self->register_constant($const->{NAME}, $const->{DTYPE}, $const->{VALUE});
  95 }
  96
  97 sub register_constant($$$$)
  98 {
  99         my ($self, $name, $type, $value) = @_;
 100
 101         unless (defined $self->{constants_uniq}->{$name}) {
 102                 my $h = {"key" => $name, "val" => [$type, $value]};
 103                 push @{$self->{constants}}, $h;
 104                 $self->{constants_uniq}->{$name} = $h;
 105         }
 106 }
 107
 108 sub EnumAndBitmapConsts($$$)
 109 {
 110         my ($self, $name, $d) = @_;
 111
 112         return unless (defined($d->{ELEMENTS}));
 113
 114         foreach my $e (@{$d->{ELEMENTS}}) {
 115                 $e =~ /^([A-Za-z0-9_]+)/;
 116                 my $cname = $1;
 117
 118                 $self->register_constant($cname, $d, $cname);
 119         }
 120 }
 121
 122 sub FromUnionToPythonFunction($$$$)
 123 {
 124         my ($self, $mem_ctx, $type, $switch, $name) = @_;
 125
 126         $self->pidl("PyObject *ret;");
 127         $self->pidl("");
 128
 129         $self->pidl("switch ($switch) {");
 130         $self->indent;
 131
 132         foreach my $e (@{$type->{ELEMENTS}}) {
 133                 $self->pidl("$e->{CASE}:");
 134
 135                 $self->indent;
 136
 137                 if ($e->{NAME}) {
 138                         $self->ConvertObjectToPython($mem_ctx, {}, $e, "$name->$e->{NAME}", "ret", "return NULL;");
 139                 } else {
 140                         $self->pidl("ret = Py_None;");
 141                         $self->pidl("Py_INCREF(ret);");
 142                 }
 143
 144                 $self->pidl("return ret;");
 145                 $self->pidl("");
 146
 147                 $self->deindent;
 148         }
 149
 150         $self->deindent;
 151         $self->pidl("}");
 152
 153         $self->pidl("PyErr_SetString(PyExc_TypeError, \"unknown union level\");");
 154         $self->pidl("return NULL;");
 155 }
 156
 157 sub FromPythonToUnionFunction($$$$$)
 158 {
 159         my ($self, $type, $typename, $switch, $mem_ctx, $name) = @_;
 160
 161         my $has_default = 0;
 162
 163         $self->pidl("$typename *ret = talloc_zero($mem_ctx, $typename);");
 164
 165         $self->pidl("switch ($switch) {");
 166         $self->indent;
 167
 168         foreach my $e (@{$type->{ELEMENTS}}) {
 169                 $self->pidl("$e->{CASE}:");
 170                 if ($e->{CASE} eq "default") { $has_default = 1; }
 171                 $self->indent;
 172                 if ($e->{NAME}) {
 173                         $self->ConvertObjectFromPython({}, $mem_ctx, $e, $name, "ret->$e->{NAME}", "talloc_free(ret); return NULL;");
 174                 }
 175                 $self->pidl("break;");
 176                 $self->deindent;
 177                 $self->pidl("");
 178         }
 179
 180         if (!$has_default) {
 181                 $self->pidl("default:");
 182                 $self->indent;
 183                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"invalid union level value\");");
 184                 $self->pidl("talloc_free(ret);");
 185                 $self->pidl("ret = NULL;");
 186                 $self->deindent;
 187         }
 188
 189         $self->deindent;
 190         $self->pidl("}");
 191         $self->pidl("");
 192         $self->pidl("return ret;");
 193 }
 194
 195 sub PythonStruct($$$$$$)
 196 {
 197         my ($self, $modulename, $prettyname, $name, $cname, $d) = @_;
 198
 199         my $env = GenerateStructEnv($d, "object");
 200
 201         $self->pidl("");
 202
 203         my $getsetters = "NULL";
 204
 205         if ($#{$d->{ELEMENTS}} > -1) {
 206                 foreach my $e (@{$d->{ELEMENTS}}) {
 207                         my $varname = "object->$e->{NAME}";
 208                         $self->pidl("static PyObject *py_$name\_get_$e->{NAME}(PyObject *obj, void *closure)");
 209                         $self->pidl("{");
 210                         $self->indent;
 211                         $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(obj);");
 212                         $self->pidl("PyObject *py_$e->{NAME};");
 213                         $self->ConvertObjectToPython("pytalloc_get_mem_ctx(obj)", $env, $e, $varname, "py_$e->{NAME}", "return NULL;");
 214                         $self->pidl("return py_$e->{NAME};");
 215                         $self->deindent;
 216                         $self->pidl("}");
 217                         $self->pidl("");
 218
 219                         $self->pidl("static int py_$name\_set_$e->{NAME}(PyObject *py_obj, PyObject *value, void *closure)");
 220                         $self->pidl("{");
 221                         $self->indent;
 222                         $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(py_obj);");
 223                         my $mem_ctx = "pytalloc_get_mem_ctx(py_obj)";
 224                         my $l = $e->{LEVELS}[0];
 225                         my $nl = GetNextLevel($e, $l);
 226                         if ($l->{TYPE} eq "POINTER" and
 227                                 not ($nl->{TYPE} eq "ARRAY" and ($nl->{IS_FIXED} or is_charset_array($e, $nl))) and
 228                                 not ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE}))) {
 229                                 $self->pidl("talloc_unlink($mem_ctx, discard_const($varname));");
 230                         }
 231                         $self->ConvertObjectFromPython($env, $mem_ctx, $e, "value", $varname, "return -1;");
 232                         $self->pidl("return 0;");
 233                         $self->deindent;
 234                         $self->pidl("}");
 235                         $self->pidl("");
 236                 }
 237
 238                 $getsetters = "py_$name\_getsetters";
 239                 $self->pidl("static PyGetSetDef ".$getsetters."[] = {");
 240                 $self->indent;
 241                 foreach my $e (@{$d->{ELEMENTS}}) {
 242                         $self->pidl("{");
 243                         $self->indent;
 244                         $self->pidl(".name = discard_const_p(char, \"$e->{NAME}\"),");
 245                         $self->pidl(".get = py_$name\_get_$e->{NAME},");
 246                         $self->pidl(".set = py_$name\_set_$e->{NAME},");
 247                         $self->pidl(".doc = discard_const_p(char, \"PIDL-generated element of base type $e->{TYPE}\")");
 248                         $self->deindent;
 249                         $self->pidl("},");
 250                 }
 251                 $self->pidl("{ .name = NULL }");
 252                 $self->deindent;
 253                 $self->pidl("};");
 254                 $self->pidl("");
 255         }
 256
 257         $self->pidl("static PyObject *py_$name\_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
 258         $self->pidl("{");
 259         $self->indent;
 260         $self->pidl("return pytalloc_new($cname, type);");
 261         $self->deindent;
 262         $self->pidl("}");
 263         $self->pidl("");
 264
 265         my $py_methods = "NULL";
 266
 267         # If the struct is not public there ndr_pull/ndr_push functions will
 268         # be static so not callable from here
 269         if (has_property($d, "public")) {
 270                 $self->pidl("static PyObject *py_$name\_ndr_pack(PyObject *py_obj)");
 271                 $self->pidl("{");
 272                 $self->indent;
 273                 $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(py_obj);");
 274                 $self->pidl("PyObject *ret = NULL;");
 275                 $self->pidl("DATA_BLOB blob;");
 276                 $self->pidl("enum ndr_err_code err;");
 277                 $self->pidl("TALLOC_CTX *tmp_ctx = talloc_new(pytalloc_get_mem_ctx(py_obj));");
 278                 $self->pidl("if (tmp_ctx == NULL) {");
 279                 $self->indent;
 280                 $self->pidl("PyErr_SetNdrError(NDR_ERR_ALLOC);");
 281                 $self->pidl("return NULL;");
 282                 $self->deindent;
 283                 $self->pidl("}");
 284                 $self->pidl("err = ndr_push_struct_blob(&blob, tmp_ctx, object, (ndr_push_flags_fn_t)ndr_push_$name);");
 285                 $self->pidl("if (!NDR_ERR_CODE_IS_SUCCESS(err)) {");
 286                 $self->indent;
 287                 $self->pidl("TALLOC_FREE(tmp_ctx);");
 288                 $self->pidl("PyErr_SetNdrError(err);");
 289                 $self->pidl("return NULL;");
 290                 $self->deindent;
 291                 $self->pidl("}");
 292                 $self->pidl("");
 293                 $self->pidl("ret = PyString_FromStringAndSize((char *)blob.data, blob.length);");
 294                 $self->pidl("TALLOC_FREE(tmp_ctx);");
 295                 $self->pidl("return ret;");
 296                 $self->deindent;
 297                 $self->pidl("}");
 298                 $self->pidl("");
 299
 300                 $self->pidl("static PyObject *py_$name\_ndr_unpack(PyObject *py_obj, PyObject *args, PyObject *kwargs)");
 301                 $self->pidl("{");
 302                 $self->indent;
 303                 $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(py_obj);");
 304                 $self->pidl("DATA_BLOB blob;");
 305                 $self->pidl("Py_ssize_t blob_length = 0;");
 306                 $self->pidl("enum ndr_err_code err;");
 307                 $self->pidl("const char * const kwnames[] = { \"data_blob\", \"allow_remaining\", NULL };");
 308                 $self->pidl("PyObject *allow_remaining_obj = NULL;");
 309                 $self->pidl("bool allow_remaining = false;");
 310                 $self->pidl("");
 311                 $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"s#|O:__ndr_unpack__\",");
 312                 $self->indent;
 313                 $self->pidl("discard_const_p(char *, kwnames),");
 314                 $self->pidl("&blob.data, &blob_length,");
 315                 $self->pidl("&allow_remaining_obj)) {");
 316                 $self->deindent;
 317                 $self->indent;
 318                 $self->pidl("return NULL;");
 319                 $self->deindent;
 320                 $self->pidl("}");
 321                 $self->pidl("blob.length = blob_length;");
 322                 $self->pidl("");
 323                 $self->pidl("if (allow_remaining_obj && PyObject_IsTrue(allow_remaining_obj)) {");
 324                 $self->indent;
 325                 $self->pidl("allow_remaining = true;");
 326                 $self->deindent;
 327                 $self->pidl("}");
 328                 $self->pidl("");
 329                 $self->pidl("if (allow_remaining) {");
 330                 $self->indent;
 331                 $self->pidl("err = ndr_pull_struct_blob(&blob, pytalloc_get_mem_ctx(py_obj), object, (ndr_pull_flags_fn_t)ndr_pull_$name);");
 332                 $self->deindent;
 333                 $self->pidl("} else {");
 334                 $self->indent;
 335                 $self->pidl("err = ndr_pull_struct_blob_all(&blob, pytalloc_get_mem_ctx(py_obj), object, (ndr_pull_flags_fn_t)ndr_pull_$name);");
 336                 $self->deindent;
 337                 $self->pidl("}");
 338                 $self->pidl("if (!NDR_ERR_CODE_IS_SUCCESS(err)) {");
 339                 $self->indent;
 340                 $self->pidl("PyErr_SetNdrError(err);");
 341                 $self->pidl("return NULL;");
 342                 $self->deindent;
 343                 $self->pidl("}");
 344                 $self->pidl("");
 345                 $self->pidl("Py_RETURN_NONE;");
 346                 $self->deindent;
 347                 $self->pidl("}");
 348                 $self->pidl("");
 349
 350                 $self->pidl("static PyObject *py_$name\_ndr_print(PyObject *py_obj)");
 351                 $self->pidl("{");
 352                 $self->indent;
 353                 $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(py_obj);");
 354                 $self->pidl("PyObject *ret;");
 355                 $self->pidl("char *retstr;");
 356                 $self->pidl("");
 357                 $self->pidl("retstr = ndr_print_struct_string(pytalloc_get_mem_ctx(py_obj), (ndr_print_fn_t)ndr_print_$name, \"$name\", object);");
 358                 $self->pidl("ret = PyString_FromString(retstr);");
 359                 $self->pidl("talloc_free(retstr);");
 360                 $self->pidl("");
 361                 $self->pidl("return ret;");
 362                 $self->deindent;
 363                 $self->pidl("}");
 364                 $self->pidl("");
 365
 366                 $py_methods = "py_$name\_methods";
 367                 $self->pidl("static PyMethodDef $py_methods\[] = {");
 368                 $self->indent;
 369                 $self->pidl("{ \"__ndr_pack__\", (PyCFunction)py_$name\_ndr_pack, METH_NOARGS, \"S.ndr_pack(object) -> blob\\nNDR pack\" },");
 370                 $self->pidl("{ \"__ndr_unpack__\", (PyCFunction)py_$name\_ndr_unpack, METH_VARARGS|METH_KEYWORDS, \"S.ndr_unpack(class, blob, allow_remaining=False) -> None\\nNDR unpack\" },");
 371                 $self->pidl("{ \"__ndr_print__\", (PyCFunction)py_$name\_ndr_print, METH_NOARGS, \"S.ndr_print(object) -> None\\nNDR print\" },");
 372                 $self->pidl("{ NULL, NULL, 0, NULL }");
 373                 $self->deindent;
 374                 $self->pidl("};");
 375                 $self->pidl("");
 376         }
 377
 378         $self->pidl_hdr("static PyTypeObject $name\_Type;\n");
 379         $self->pidl("");
 380         my $docstring = $self->DocString($d, $name);
 381         my $typeobject = "$name\_Type";
 382         $self->pidl("static PyTypeObject $typeobject = {");
 383         $self->indent;
 384         $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
 385         $self->pidl(".tp_name = \"$modulename.$prettyname\",");
 386         $self->pidl(".tp_getset = $getsetters,");
 387         if ($docstring) {
 388                 $self->pidl(".tp_doc = $docstring,");
 389         }
 390         $self->pidl(".tp_methods = $py_methods,");
 391         $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 392         $self->pidl(".tp_new = py_$name\_new,");
 393         $self->deindent;
 394         $self->pidl("};");
 395
 396         $self->pidl("");
 397
 398         my $talloc_typename = $self->import_type_variable("talloc", "BaseObject");
 399         $self->register_module_prereadycode(["$name\_Type.tp_base = $talloc_typename;",
 400                                              "$name\_Type.tp_basicsize = pytalloc_BaseObject_size();",
 401                                              ""]);
 402
 403         return "&$typeobject";
 404 }
 405
 406 sub get_metadata_var($)
 407 {
 408         my ($e) = @_;
 409         sub get_var($) { my $x = shift; $x =~ s/\*//g; return $x; }
 410
 411          if (has_property($e, "length_is")) {
 412                 return get_var($e->{PROPERTIES}->{length_is});
 413          } elsif (has_property($e, "size_is")) {
 414                 return get_var($e->{PROPERTIES}->{size_is});
 415          }
 416
 417          return undef;
 418 }
 419
 420 sub find_metadata_args($)
 421 {
 422         my ($fn) = @_;
 423         my $metadata_args = { in => {}, out => {} };
 424
 425         # Determine arguments that are metadata for other arguments (size_is/length_is)
 426         foreach my $e (@{$fn->{ELEMENTS}}) {
 427                 foreach my $dir (@{$e->{DIRECTION}}) {
 428                          my $main = get_metadata_var($e);
 429                          if ($main) {
 430                                  $metadata_args->{$dir}->{$main} = $e->{NAME};
 431                          }
 432                  }
 433         }
 434
 435         return $metadata_args;
 436 }
 437
 438 sub PythonFunctionUnpackOut($$$)
 439 {
 440         my ($self, $fn, $fnname) = @_;
 441
 442         my $outfnname = "unpack_$fnname\_args_out";
 443         my $signature = "";
 444
 445         my $metadata_args = find_metadata_args($fn);
 446
 447         my $env = GenerateFunctionOutEnv($fn, "r->");
 448         my $result_size = 0;
 449
 450         $self->pidl("static PyObject *$outfnname(struct $fn->{NAME} *r)");
 451         $self->pidl("{");
 452         $self->indent;
 453         $self->pidl("PyObject *result;");
 454         foreach my $e (@{$fn->{ELEMENTS}}) {
 455                 next unless (grep(/out/,@{$e->{DIRECTION}}));
 456                 next if (($metadata_args->{in}->{$e->{NAME}} and grep(/in/, @{$e->{DIRECTION}})) or
 457                          ($metadata_args->{out}->{$e->{NAME}}) and grep(/out/, @{$e->{DIRECTION}}));
 458                 $self->pidl("PyObject *py_$e->{NAME};");
 459                 $result_size++;
 460         }
 461
 462         if ($fn->{RETURN_TYPE}) {
 463                 $result_size++ unless ($fn->{RETURN_TYPE} eq "WERROR" or $fn->{RETURN_TYPE} eq "NTSTATUS");
 464         }
 465
 466         my $i = 0;
 467
 468         if ($result_size > 1) {
 469                 $self->pidl("result = PyTuple_New($result_size);");
 470                 $signature .= "(";
 471         } elsif ($result_size == 0) {
 472                 $self->pidl("result = Py_None;");
 473                 $self->pidl("Py_INCREF(result);");
 474                 $signature .= "None";
 475         }
 476
 477         foreach my $e (@{$fn->{ELEMENTS}}) {
 478                 next if ($metadata_args->{out}->{$e->{NAME}});
 479                 my $py_name = "py_$e->{NAME}";
 480                 if (grep(/out/,@{$e->{DIRECTION}})) {
 481                         $self->ConvertObjectToPython("r", $env, $e, "r->out.$e->{NAME}", $py_name, "return NULL;");
 482                         if ($result_size > 1) {
 483                                 $self->pidl("PyTuple_SetItem(result, $i, $py_name);");
 484                                 $i++;
 485                                 $signature .= "$e->{NAME}, ";
 486                         } else {
 487                                 $self->pidl("result = $py_name;");
 488                                 $signature .= $e->{NAME};
 489                         }
 490                 }
 491         }
 492
 493         if (defined($fn->{RETURN_TYPE}) and $fn->{RETURN_TYPE} eq "NTSTATUS") {
 494                 $self->handle_ntstatus("r->out.result", "NULL", undef);
 495         } elsif (defined($fn->{RETURN_TYPE}) and $fn->{RETURN_TYPE} eq "WERROR") {
 496                 $self->handle_werror("r->out.result", "NULL", undef);
 497         } elsif (defined($fn->{RETURN_TYPE})) {
 498                 my $conv = $self->ConvertObjectToPythonData("r", $fn->{RETURN_TYPE}, "r->out.result", $fn);
 499                 if ($result_size > 1) {
 500                         $self->pidl("PyTuple_SetItem(result, $i, $conv);");
 501                 } else {
 502                         $self->pidl("result = $conv;");
 503                 }
 504                 $signature .= "result";
 505         }
 506
 507         if (substr($signature, -2) eq ", ") {
 508                 $signature = substr($signature, 0, -2);
 509         }
 510         if ($result_size > 1) {
 511                 $signature .= ")";
 512         }
 513
 514         $self->pidl("return result;");
 515         $self->deindent;
 516         $self->pidl("}");
 517         $self->pidl("");
 518
 519         return ($outfnname, $signature);
 520 }
 521
 522 sub PythonFunctionPackIn($$$)
 523 {
 524         my ($self, $fn, $fnname) = @_;
 525         my $metadata_args = find_metadata_args($fn);
 526
 527         my $infnname = "pack_$fnname\_args_in";
 528
 529         $self->pidl("static bool $infnname(PyObject *args, PyObject *kwargs, struct $fn->{NAME} *r)");
 530         $self->pidl("{");
 531         $self->indent;
 532         my $args_format = "";
 533         my $args_string = "";
 534         my $args_names = "";
 535         my $signature = "";
 536
 537         foreach my $e (@{$fn->{ELEMENTS}}) {
 538                 next unless (grep(/in/,@{$e->{DIRECTION}}));
 539                 next if (($metadata_args->{in}->{$e->{NAME}} and grep(/in/, @{$e->{DIRECTION}})) or
 540                                  ($metadata_args->{out}->{$e->{NAME}}) and grep(/out/, @{$e->{DIRECTION}}));
 541                 $self->pidl("PyObject *py_$e->{NAME};");
 542                 $args_format .= "O";
 543                 $args_string .= ", &py_$e->{NAME}";
 544                 $args_names .= "\"$e->{NAME}\", ";
 545                 $signature .= "$e->{NAME}, ";
 546         }
 547         if (substr($signature, -2) eq ", ") {
 548                 $signature = substr($signature, 0, -2);
 549         }
 550         $self->pidl("const char *kwnames[] = {");
 551         $self->indent;
 552         $self->pidl($args_names . "NULL");
 553         $self->deindent;
 554         $self->pidl("};");
 555
 556         $self->pidl("");
 557         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"$args_format:$fn->{NAME}\", discard_const_p(char *, kwnames)$args_string)) {");
 558         $self->indent;
 559         $self->pidl("return false;");
 560         $self->deindent;
 561         $self->pidl("}");
 562         $self->pidl("");
 563
 564         my $env = GenerateFunctionInEnv($fn, "r->");
 565
 566         my $fail = "return false;";
 567         foreach my $e (@{$fn->{ELEMENTS}}) {
 568                 next unless (grep(/in/,@{$e->{DIRECTION}}));
 569                 if ($metadata_args->{in}->{$e->{NAME}}) {
 570                         my $py_var = "py_".$metadata_args->{in}->{$e->{NAME}};
 571                         $self->pidl("PY_CHECK_TYPE(&PyList_Type, $py_var, $fail);");
 572                         my $val = "PyList_GET_SIZE($py_var)";
 573                         if ($e->{LEVELS}[0]->{TYPE} eq "POINTER") {
 574                                 $self->pidl("r->in.$e->{NAME} = talloc_ptrtype(r, r->in.$e->{NAME});");
 575                                 $self->pidl("if (r->in.$e->{NAME} == NULL) {");
 576                                 $self->indent;
 577                                 $self->pidl("PyErr_NoMemory();");
 578                                 $self->pidl($fail);
 579                                 $self->deindent;
 580                                 $self->pidl("}");
 581                                 $self->pidl("*r->in.$e->{NAME} = $val;");
 582                         } else {
 583                                 $self->pidl("r->in.$e->{NAME} = $val;");
 584                         }
 585                 } else {
 586                         $self->ConvertObjectFromPython($env, "r", $e, "py_$e->{NAME}", "r->in.$e->{NAME}", $fail);
 587                 }
 588         }
 589         $self->pidl("return true;");
 590         $self->deindent;
 591         $self->pidl("}");
 592         $self->pidl("");
 593         return ($infnname, $signature);
 594 }
 595
 596 sub PythonFunction($$$)
 597 {
 598         my ($self, $fn, $iface, $prettyname) = @_;
 599
 600         my $fnname = "py_$fn->{NAME}";
 601         my $docstring = $self->DocString($fn, $fn->{NAME});
 602
 603         my ($infn, $insignature) = $self->PythonFunctionPackIn($fn, $fnname);
 604         my ($outfn, $outsignature) = $self->PythonFunctionUnpackOut($fn, $fnname);
 605         my $signature = "S.$prettyname($insignature) -> $outsignature";
 606         if ($docstring) {
 607                 $docstring = "\"$signature\\n\\n\"$docstring";
 608         } else {
 609                 $docstring = "\"$signature\"";
 610         }
 611
 612         return ($infn, $outfn, $docstring);
 613 }
 614
 615 sub handle_werror($$$$)
 616 {
 617         my ($self, $var, $retval, $mem_ctx) = @_;
 618
 619         $self->pidl("if (!W_ERROR_IS_OK($var)) {");
 620         $self->indent;
 621         $self->pidl("PyErr_SetWERROR($var);");
 622         $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
 623         $self->pidl("return $retval;");
 624         $self->deindent;
 625         $self->pidl("}");
 626         $self->pidl("");
 627 }
 628
 629 sub handle_ntstatus($$$$)
 630 {
 631         my ($self, $var, $retval, $mem_ctx) = @_;
 632
 633         $self->pidl("if (NT_STATUS_IS_ERR($var)) {");
 634         $self->indent;
 635         $self->pidl("PyErr_SetNTSTATUS($var);");
 636         $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
 637         $self->pidl("return $retval;");
 638         $self->deindent;
 639         $self->pidl("}");
 640         $self->pidl("");
 641 }
 642
 643 sub PythonType($$$$)
 644 {
 645         my ($self, $modulename, $d, $interface, $basename) = @_;
 646
 647         my $actual_ctype = $d;
 648         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
 649                 $actual_ctype = $actual_ctype->{DATA};
 650         }
 651
 652         if ($actual_ctype->{TYPE} eq "STRUCT") {
 653                 my $typeobject;
 654                 my $fn_name = PrettifyTypeName($d->{NAME}, $basename);
 655
 656                 if ($d->{TYPE} eq "STRUCT") {
 657                         $typeobject = $self->PythonStruct($modulename, $fn_name, $d->{NAME}, mapTypeName($d), $d);
 658                 } else {
 659                         $typeobject = $self->PythonStruct($modulename, $fn_name, $d->{NAME}, mapTypeName($d), $d->{DATA});
 660                 }
 661
 662                 $self->register_module_typeobject($fn_name, $typeobject, $d->{ORIGINAL});
 663         }
 664
 665         if ($d->{TYPE} eq "ENUM" or $d->{TYPE} eq "BITMAP") {
 666                 $self->EnumAndBitmapConsts($d->{NAME}, $d);
 667         }
 668
 669         if ($d->{TYPE} eq "TYPEDEF" and ($d->{DATA}->{TYPE} eq "ENUM" or $d->{DATA}->{TYPE} eq "BITMAP")) {
 670                 $self->EnumAndBitmapConsts($d->{NAME}, $d->{DATA});
 671         }
 672
 673         if ($actual_ctype->{TYPE} eq "UNION" and defined($actual_ctype->{ELEMENTS})) {
 674                 $self->pidl("PyObject *py_import_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, " .mapTypeName($d) . " *in)");
 675                 $self->pidl_hdr("PyObject *py_import_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, " .mapTypeName($d) . " *in);\n");
 676                 $self->pidl("{");
 677                 $self->indent;
 678                 $self->FromUnionToPythonFunction("mem_ctx", $actual_ctype, "level", "in") if ($actual_ctype->{TYPE} eq "UNION");
 679                 $self->deindent;
 680                 $self->pidl("}");
 681                 $self->pidl("");
 682
 683                 $self->pidl(mapTypeName($d) . " *py_export_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, PyObject *in)");
 684                 $self->pidl_hdr(mapTypeName($d) . " *py_export_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, PyObject *in);\n");
 685                 $self->pidl("{");
 686                 $self->indent;
 687                 $self->FromPythonToUnionFunction($actual_ctype, mapTypeName($d), "level", "mem_ctx", "in") if ($actual_ctype->{TYPE} eq "UNION");
 688                 $self->deindent;
 689                 $self->pidl("}");
 690                 $self->pidl("");
 691         }
 692 }
 693
 694 sub DocString($$$)
 695 {
 696         my ($self, $d, $name) = @_;
 697         if (has_property($d, "helpstring")) {
 698                 my $docstring = uc("py_doc_$name");
 699                 $self->pidl("#define $docstring ".has_property($d, "helpstring"));
 700                 return $docstring;
 701         }
 702
 703         return undef;
 704 }
 705
 706 sub Interface($$$)
 707 {
 708         my($self,$interface,$basename) = @_;
 709
 710         if (has_property($interface, "pyhelper")) {
 711                 $self->pidl("#include \"".unmake_str($interface->{PROPERTIES}->{pyhelper})."\"\n");
 712         }
 713
 714         $self->Const($_) foreach (@{$interface->{CONSTS}});
 715
 716         foreach my $d (@{$interface->{TYPES}}) {
 717                 next if has_property($d, "nopython");
 718
 719                 $self->PythonType($basename, $d, $interface, $basename);
 720         }
 721
 722         if (defined $interface->{PROPERTIES}->{uuid}) {
 723                 $self->pidl_hdr("static PyTypeObject $interface->{NAME}_InterfaceType;\n");
 724                 $self->pidl("");
 725
 726                 my @fns = ();
 727
 728                 foreach my $d (@{$interface->{FUNCTIONS}}) {
 729                         next if has_property($d, "noopnum");
 730                         next if has_property($d, "nopython");
 731                         next if has_property($d, "todo");
 732
 733                         my $skip = 0;
 734                         foreach my $e (@{$d->{ELEMENTS}}) {
 735                                 if (ContainsPipe($e, $e->{LEVELS}[0])) {
 736                                         $skip = 1;
 737                                         last;
 738                                 }
 739                         }
 740                         next if $skip;
 741
 742                         my $prettyname = $d->{NAME};
 743
 744                         $prettyname =~ s/^$interface->{NAME}_//;
 745                         $prettyname =~ s/^$basename\_//;
 746
 747                         my ($infn, $outfn, $fndocstring) = $self->PythonFunction($d, $interface->{NAME}, $prettyname);
 748
 749                         push (@fns, [$infn, $outfn, "dcerpc_$d->{NAME}_r", $prettyname, $fndocstring, $d->{OPNUM}]);
 750                 }
 751
 752                 $self->pidl("const struct PyNdrRpcMethodDef py_ndr_$interface->{NAME}\_methods[] = {");
 753                 $self->indent;
 754                 foreach my $d (@fns) {
 755                         my ($infn, $outfn, $callfn, $prettyname, $docstring, $opnum) = @$d;
 756                         $self->pidl("{ \"$prettyname\", $docstring, (py_dcerpc_call_fn)$callfn, (py_data_pack_fn)$infn, (py_data_unpack_fn)$outfn, $opnum, &ndr_table_$interface->{NAME} },");
 757                 }
 758                 $self->pidl("{ NULL }");
 759                 $self->deindent;
 760                 $self->pidl("};");
 761                 $self->pidl("");
 762
 763                 $self->pidl("static PyObject *interface_$interface->{NAME}_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
 764                 $self->pidl("{");
 765                 $self->indent;
 766                 $self->pidl("return py_dcerpc_interface_init_helper(type, args, kwargs, &ndr_table_$interface->{NAME});");
 767                 $self->deindent;
 768                 $self->pidl("}");
 769
 770                 $self->pidl("");
 771
 772                 my $signature =
 773 "\"$interface->{NAME}(binding, lp_ctx=None, credentials=None) -> connection\\n\"
 774 \"\\n\"
 775 \"binding should be a DCE/RPC binding string (for example: ncacn_ip_tcp:127.0.0.1)\\n\"
 776 \"lp_ctx should be a path to a smb.conf file or a param.LoadParm object\\n\"
 777 \"credentials should be a credentials.Credentials object.\\n\\n\"";
 778
 779                 my $docstring = $self->DocString($interface, $interface->{NAME});
 780
 781                 if ($docstring) {
 782                         $docstring = "$signature$docstring";
 783                 } else {
 784                         $docstring = $signature;
 785                 }
 786
 787                 my $if_typename = "$interface->{NAME}_InterfaceType";
 788
 789                 $self->pidl("static PyTypeObject $if_typename = {");
 790                 $self->indent;
 791                 $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
 792                 $self->pidl(".tp_name = \"$basename.$interface->{NAME}\",");
 793                 $self->pidl(".tp_basicsize = sizeof(dcerpc_InterfaceObject),");
 794                 $self->pidl(".tp_doc = $docstring,");
 795                 $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 796                 $self->pidl(".tp_new = interface_$interface->{NAME}_new,");
 797                 $self->deindent;
 798                 $self->pidl("};");
 799
 800                 $self->pidl("");
 801
 802                 $self->register_module_typeobject($interface->{NAME}, "&$if_typename", $interface->{ORIGINAL});
 803                 my $dcerpc_typename = $self->import_type_variable("samba.dcerpc.base", "ClientConnection");
 804                 $self->register_module_prereadycode(["$if_typename.tp_base = $dcerpc_typename;", ""]);
 805                 $self->register_module_postreadycode(["if (!PyInterface_AddNdrRpcMethods(&$if_typename, py_ndr_$interface->{NAME}\_methods))", "\treturn;", ""]);
 806
 807
 808                 $self->pidl("static PyObject *syntax_$interface->{NAME}_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
 809                 $self->pidl("{");
 810                 $self->indent;
 811                 $self->pidl("return py_dcerpc_syntax_init_helper(type, args, kwargs, &ndr_table_$interface->{NAME}.syntax_id);");
 812                 $self->deindent;
 813                 $self->pidl("}");
 814
 815                 $self->pidl("");
 816
 817                 my $signature = "\"$interface->{NAME}_abstract_syntax()\\n\"";
 818
 819                 my $docstring = $self->DocString($interface, $interface->{NAME}."_syntax");
 820
 821                 if ($docstring) {
 822                         $docstring = "$signature$docstring";
 823                 } else {
 824                         $docstring = $signature;
 825                 }
 826
 827                 my $syntax_typename = "$interface->{NAME}_SyntaxType";
 828
 829                 $self->pidl("static PyTypeObject $syntax_typename = {");
 830                 $self->indent;
 831                 $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
 832                 $self->pidl(".tp_name = \"$basename.$interface->{NAME}_abstract_syntax\",");
 833                 $self->pidl(".tp_doc = $docstring,");
 834                 $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 835                 $self->pidl(".tp_new = syntax_$interface->{NAME}_new,");
 836                 $self->deindent;
 837                 $self->pidl("};");
 838
 839                 $self->pidl("");
 840
 841                 $self->register_module_typeobject("$interface->{NAME}_abstract_syntax", "&$syntax_typename", $interface->{ORIGINAL});
 842                 if (not defined($self->existing_module_object("abstract_syntax"))) {
 843                         # Only the first syntax gets registered with the legacy
 844                         # "abstract_syntax" name
 845                         $self->register_module_typeobject("abstract_syntax", "&$syntax_typename", $interface->{ORIGINAL});
 846                 }
 847                 my $ndr_typename = $self->import_type_variable("samba.dcerpc.misc", "ndr_syntax_id");
 848                 $self->register_module_prereadycode(["$syntax_typename.tp_base = $ndr_typename;",
 849                                                      "$syntax_typename.tp_basicsize = pytalloc_BaseObject_size();",
 850                                                      ""]);
 851         }
 852
 853         $self->pidl_hdr("\n");
 854 }
 855
 856 sub register_module_method($$$$$)
 857 {
 858         my ($self, $fn_name, $pyfn_name, $flags, $doc) = @_;
 859
 860         push (@{$self->{module_methods}}, [$fn_name, $pyfn_name, $flags, $doc])
 861 }
 862
 863 sub register_module_typeobject($$$$)
 864 {
 865         my ($self, $name, $py_name, $location) = @_;
 866
 867         $self->register_module_object($name, "(PyObject *)(void *)$py_name", $location);
 868
 869         $self->check_ready_type($py_name);
 870
 871         $self->register_patch_type_call($name, $py_name);
 872 }
 873
 874 sub check_ready_type($$)
 875 {
 876         my ($self, $py_name) = @_;
 877         push (@{$self->{ready_types}}, $py_name) unless (grep(/^$py_name$/,@{$self->{ready_types}}));
 878 }
 879
 880 sub register_module_import($$)
 881 {
 882         my ($self, $module_path) = @_;
 883
 884         my $var_name = $module_path;
 885         $var_name =~ s/\./_/g;
 886         $var_name = "dep_$var_name";
 887
 888         unless (defined $self->{module_imports_uniq}->{$var_name}) {
 889                 my $h = { "key" => $var_name, "val" => $module_path};
 890                 push @{$self->{module_imports}}, $h;
 891                 $self->{module_imports_uniq}->{$var_name} = $h;
 892         }
 893         return $var_name;
 894 }
 895
 896 sub import_type_variable($$$)
 897 {
 898         my ($self, $module, $name) = @_;
 899
 900         $self->register_module_import($module);
 901         unless (defined $self->{type_imports_uniq}->{$name}) {
 902                 my $h = { "key" => $name, "val" => $module};
 903                 push @{$self->{type_imports}}, $h;
 904                 $self->{type_imports_uniq}->{$name} = $h;
 905         }
 906         return "$name\_Type";
 907 }
 908
 909 sub use_type_variable($$)
 910 {
 911         my ($self, $orig_ctype) = @_;
 912         # FIXME: Have a global lookup table for types that look different on the
 913         # wire than they are named in C?
 914         if ($orig_ctype->{NAME} eq "dom_sid2" or
 915             $orig_ctype->{NAME} eq "dom_sid28" or
 916             $orig_ctype->{NAME} eq "dom_sid0") {
 917                 $orig_ctype->{NAME} = "dom_sid";
 918         }
 919         if ($orig_ctype->{NAME} eq "spoolss_security_descriptor") {
 920                 $orig_ctype->{NAME} = "security_descriptor";
 921         }
 922
 923         my $ctype = resolveType($orig_ctype);
 924         unless (defined($ctype->{BASEFILE})) {
 925                 return undef;
 926         }
 927         # If this is an external type, make sure we do the right imports.
 928         if (($ctype->{BASEFILE} ne $self->{BASENAME})) {
 929                 return $self->import_type_variable("samba.dcerpc.$ctype->{BASEFILE}", $ctype->{NAME});
 930         }
 931         return "&$ctype->{NAME}_Type";
 932 }
 933
 934 sub register_patch_type_call($$$)
 935 {
 936         my ($self, $typename, $cvar) = @_;
 937
 938         push(@{$self->{patch_type_calls}}, [$typename, $cvar]);
 939
 940 }
 941
 942 sub register_module_prereadycode($$)
 943 {
 944         my ($self, $code) = @_;
 945
 946         push (@{$self->{prereadycode}}, @$code);
 947 }
 948
 949 sub register_module_postreadycode($$)
 950 {
 951         my ($self, $code) = @_;
 952
 953         push (@{$self->{postreadycode}}, @$code);
 954 }
 955
 956 sub existing_module_object($$)
 957 {
 958         my ($self, $name) = @_;
 959
 960         if (defined($self->{module_object_uniq}->{$name})) {
 961                 return $self->{module_object_uniq}->{$name};
 962         }
 963
 964         return undef;
 965 }
 966
 967 sub register_module_object($$$$)
 968 {
 969         my ($self, $name, $py_name, $location) = @_;
 970
 971         my $existing = $self->existing_module_object($name);
 972         fatal($location, "module_object($name, $py_name) registered twice! $existing.") if defined($existing);
 973
 974         push (@{$self->{module_objects}}, [$name, $py_name]);
 975         $self->{module_object_uniq}->{$name} = $py_name;
 976 }
 977
 978 sub assign($$$)
 979 {
 980         my ($self, $dest, $src) = @_;
 981         if ($dest =~ /^\&/ and $src eq "NULL") {
 982                 $self->pidl("memset($dest, 0, sizeof(" . get_value_of($dest) . "));");
 983         } elsif ($dest =~ /^\&/) {
 984                 my $destvar = get_value_of($dest);
 985                 $self->pidl("$destvar = *$src;");
 986         } else {
 987                 $self->pidl("$dest = $src;");
 988         }
 989 }
 990
 991 sub ConvertStringFromPythonData($$$$$)
 992 {
 993         my ($self, $mem_ctx, $py_var, $target, $fail) = @_;
 994
 995         $self->pidl("{");
 996         $self->indent;
 997         $self->pidl("const char *test_str;");
 998         $self->pidl("const char *talloc_str;");
 999         $self->pidl("PyObject *unicode = NULL;");
1000         $self->pidl("if (PyUnicode_Check($py_var)) {");
1001         $self->indent;
1002         # FIXME: Use Unix charset setting rather than utf-8
1003         $self->pidl("unicode = PyUnicode_AsEncodedString($py_var, \"utf-8\", \"ignore\");");
1004         $self->pidl("if (unicode == NULL) {");
1005         $self->indent;
1006         $self->pidl("PyErr_NoMemory();");
1007         $self->pidl("$fail");
1008         $self->deindent;
1009         $self->pidl("}");
1010
1011         $self->pidl("test_str = PyString_AS_STRING(unicode);");
1012         $self->deindent;
1013         $self->pidl("} else if (PyString_Check($py_var)) {");
1014         $self->indent;
1015         $self->pidl("test_str = PyString_AS_STRING($py_var);");
1016         $self->deindent;
1017         $self->pidl("} else {");
1018         $self->indent;
1019         $self->pidl("PyErr_Format(PyExc_TypeError, \"Expected string or unicode object, got %s\", Py_TYPE($py_var)->tp_name);");
1020         $self->pidl("$fail");
1021         $self->deindent;
1022         $self->pidl("}");
1023         $self->pidl("talloc_str = talloc_strdup($mem_ctx, test_str);");
1024         $self->pidl("if (unicode != NULL) {");
1025         $self->indent;
1026         $self->pidl("Py_DECREF(unicode);");
1027         $self->deindent;
1028         $self->pidl("}");
1029         $self->pidl("if (talloc_str == NULL) {");
1030         $self->indent;
1031         $self->pidl("PyErr_NoMemory();");
1032         $self->pidl("$fail");
1033         $self->deindent;
1034         $self->pidl("}");
1035         $self->pidl("$target = talloc_str;");
1036         $self->deindent;
1037         $self->pidl("}");
1038 }
1039
1040 sub ConvertObjectFromPythonData($$$$$$;$)
1041 {
1042         my ($self, $mem_ctx, $cvar, $ctype, $target, $fail, $location) = @_;
1043
1044         fatal($location, "undef type for $cvar") unless(defined($ctype));
1045
1046         $ctype = resolveType($ctype);
1047
1048         my $actual_ctype = $ctype;
1049         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
1050                 $actual_ctype = $actual_ctype->{DATA};
1051         }
1052
1053         # We need to cover ENUMs, BITMAPS and SCALAR values here, as
1054         # all could otherwise be assigned invalid integer values
1055         my $ctype_alias = "";
1056         my $uint_max = "";
1057         if ($actual_ctype->{TYPE} eq "ENUM") {
1058                 # Importantly, ENUM values are unsigned in pidl, and
1059                 # typically map to uint32
1060                 $ctype_alias = enum_type_fn($actual_ctype);
1061         } elsif ($actual_ctype->{TYPE} eq "BITMAP") {
1062                 $ctype_alias = bitmap_type_fn($actual_ctype);
1063         } elsif ($actual_ctype->{TYPE} eq "SCALAR") {
1064                 $ctype_alias = expandAlias($actual_ctype->{NAME});
1065         }
1066
1067         # This is the unsigned Python Integer -> C integer validation
1068         # case.  The signed case is below.
1069         if ($ctype_alias  =~ /^(uint[0-9]*|hyper|udlong|udlongr
1070                                 |NTTIME_hyper|NTTIME|NTTIME_1sec
1071                                 |uid_t|gid_t)$/x) {
1072                 $self->pidl("{");
1073                 $self->indent;
1074                 $self->pidl("const unsigned long long uint_max = ndr_sizeof2uintmax(sizeof($target));");
1075                 $self->pidl("if (PyLong_Check($cvar)) {");
1076                 $self->indent;
1077                 $self->pidl("unsigned long long test_var;");
1078                 $self->pidl("test_var = PyLong_AsUnsignedLongLong($cvar);");
1079                 $self->pidl("if (PyErr_Occurred() != NULL) {");
1080                 $self->indent;
1081                 $self->pidl($fail);
1082                 $self->deindent;
1083                 $self->pidl("}");
1084                 $self->pidl("if (test_var > uint_max) {");
1085                 $self->indent;
1086                 $self->pidl("PyErr_Format(PyExc_OverflowError, \"Expected type %s or %s within range 0 - %llu, got %llu\",\\");
1087                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name, uint_max, test_var);");
1088                 $self->pidl($fail);
1089                 $self->deindent;
1090                 $self->pidl("}");
1091                 $self->pidl("$target = test_var;");
1092                 $self->deindent;
1093                 $self->pidl("} else if (PyInt_Check($cvar)) {");
1094                 $self->indent;
1095                 $self->pidl("long test_var;");
1096                 $self->pidl("test_var = PyInt_AsLong($cvar);");
1097                 $self->pidl("if (test_var < 0 || test_var > uint_max) {");
1098                 $self->indent;
1099                 $self->pidl("PyErr_Format(PyExc_OverflowError, \"Expected type %s or %s within range 0 - %llu, got %ld\",\\");
1100                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name, uint_max, test_var);");
1101                 $self->pidl($fail);
1102                 $self->deindent;
1103                 $self->pidl("}");
1104                 $self->pidl("$target = test_var;");
1105                 $self->deindent;
1106                 $self->pidl("} else {");
1107                 $self->indent;
1108                 $self->pidl("PyErr_Format(PyExc_TypeError, \"Expected type %s or %s\",\\");
1109                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name);");
1110                 $self->pidl($fail);
1111                 $self->deindent;
1112                 $self->pidl("}");
1113                 $self->deindent;
1114                 $self->pidl("}");
1115                 return;
1116         }
1117
1118         # Confirm the signed python integer fits in the C type
1119         # correctly.  It is subtly different from the unsigned case
1120         # above, so while it looks like a duplicate, it is not
1121         # actually a duplicate.
1122         if ($ctype_alias  =~ /^(dlong|char|int[0-9]*|time_t)$/x) {
1123                 $self->pidl("{");
1124                 $self->indent;
1125                 $self->pidl("const long long int_max = ndr_sizeof2intmax(sizeof($target));");
1126                 $self->pidl("const long long int_min = -int_max - 1;");
1127                 $self->pidl("if (PyLong_Check($cvar)) {");
1128                 $self->indent;
1129                 $self->pidl("long long test_var;");
1130                 $self->pidl("test_var = PyLong_AsLongLong($cvar);");
1131                 $self->pidl("if (PyErr_Occurred() != NULL) {");
1132                 $self->indent;
1133                 $self->pidl($fail);
1134                 $self->deindent;
1135                 $self->pidl("}");
1136                 $self->pidl("if (test_var < int_min || test_var > int_max) {");
1137                 $self->indent;
1138                 $self->pidl("PyErr_Format(PyExc_OverflowError, \"Expected type %s or %s within range %lld - %lld, got %lld\",\\");
1139                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name, int_min, int_max, test_var);");
1140                 $self->pidl($fail);
1141                 $self->deindent;
1142                 $self->pidl("}");
1143                 $self->pidl("$target = test_var;");
1144                 $self->deindent;
1145                 $self->pidl("} else if (PyInt_Check($cvar)) {");
1146                 $self->indent;
1147                 $self->pidl("long test_var;");
1148                 $self->pidl("test_var = PyInt_AsLong($cvar);");
1149                 $self->pidl("if (test_var < int_min || test_var > int_max) {");
1150                 $self->indent;
1151                 $self->pidl("PyErr_Format(PyExc_OverflowError, \"Expected type %s or %s within range %lld - %lld, got %ld\",\\");
1152                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name, int_min, int_max, test_var);");
1153                 $self->pidl($fail);
1154                 $self->deindent;
1155                 $self->pidl("}");
1156                 $self->pidl("$target = test_var;");
1157                 $self->deindent;
1158                 $self->pidl("} else {");
1159                 $self->indent;
1160                 $self->pidl("PyErr_Format(PyExc_TypeError, \"Expected type %s or %s\",\\");
1161                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name);");
1162                 $self->pidl($fail);
1163                 $self->deindent;
1164                 $self->pidl("}");
1165                 $self->deindent;
1166                 $self->pidl("}");
1167                 return;
1168         }
1169
1170         if ($actual_ctype->{TYPE} eq "STRUCT" or $actual_ctype->{TYPE} eq "INTERFACE") {
1171                 my $ctype_name = $self->use_type_variable($ctype);
1172                 unless (defined ($ctype_name)) {
1173                         error($location, "Unable to determine origin of type `" . mapTypeName($ctype) . "'");
1174                         $self->pidl("PyErr_SetString(PyExc_TypeError, \"Can not convert C Type " . mapTypeName($ctype) . " from Python\");");
1175                         return;
1176                 }
1177                 $self->pidl("PY_CHECK_TYPE($ctype_name, $cvar, $fail);");
1178                 $self->pidl("if (talloc_reference($mem_ctx, pytalloc_get_mem_ctx($cvar)) == NULL) {");
1179                 $self->indent;
1180                 $self->pidl("PyErr_NoMemory();");
1181                 $self->pidl("$fail");
1182                 $self->deindent;
1183                 $self->pidl("}");
1184                 $self->assign($target, "(".mapTypeName($ctype)." *)pytalloc_get_ptr($cvar)");
1185                 return;
1186         }
1187
1188         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "DATA_BLOB") {
1189                 $self->pidl("$target = data_blob_talloc($mem_ctx, PyString_AS_STRING($cvar), PyString_GET_SIZE($cvar));");
1190                 return;
1191         }
1192
1193         if ($actual_ctype->{TYPE} eq "SCALAR" and
1194                 ($actual_ctype->{NAME} eq "string"
1195                  or $actual_ctype->{NAME} eq "nbt_string"
1196                  or $actual_ctype->{NAME} eq "nbt_name"
1197                  or $actual_ctype->{NAME} eq "wrepl_nbt_name"
1198                  or $actual_ctype->{NAME} eq "dns_string"
1199                  or $actual_ctype->{NAME} eq "dnsp_string"
1200                  or $actual_ctype->{NAME} eq "dns_name"
1201                  or $actual_ctype->{NAME} eq "ipv4address"
1202                  or $actual_ctype->{NAME} eq "ipv6address"
1203                  or $actual_ctype->{NAME} eq "dnsp_name")) {
1204                 $self->ConvertStringFromPythonData($mem_ctx, $cvar, $target, $fail);
1205                 return;
1206         }
1207
1208         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "NTSTATUS") {
1209                 $self->pidl("$target = NT_STATUS(PyInt_AsLong($cvar));");
1210                 return;
1211         }
1212
1213         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "WERROR") {
1214                 $self->pidl("$target = W_ERROR(PyInt_AsLong($cvar));");
1215                 return;
1216         }
1217
1218         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "HRESULT") {
1219                 $self->pidl("$target = HRES_ERROR(PyInt_AsLong($cvar));");
1220                 return;
1221         }
1222
1223         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "string_array") {
1224                 $self->pidl("$target = PyCObject_AsVoidPtr($cvar);");
1225                 return;
1226         }
1227
1228         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "pointer") {
1229                 $self->assign($target, "PyCObject_AsVoidPtr($cvar)");
1230                 return;
1231         }
1232
1233         fatal($location, "unknown type `$actual_ctype->{TYPE}' for ".mapTypeName($ctype) . ": $cvar");
1234
1235 }
1236
1237 sub ConvertObjectFromPythonLevel($$$$$$$$)
1238 {
1239         my ($self, $env, $mem_ctx, $py_var, $e, $l, $var_name, $fail) = @_;
1240         my $nl = GetNextLevel($e, $l);
1241         if ($nl and $nl->{TYPE} eq "SUBCONTEXT") {
1242                 $nl = GetNextLevel($e, $nl);
1243         }
1244         my $pl = GetPrevLevel($e, $l);
1245         if ($pl and $pl->{TYPE} eq "SUBCONTEXT") {
1246                 $pl = GetPrevLevel($e, $pl);
1247         }
1248
1249         $self->pidl("if ($py_var == NULL) {");
1250         $self->indent;
1251         $self->pidl("PyErr_Format(PyExc_AttributeError, \"Cannot delete NDR object: " .
1252                     mapTypeName($var_name) . "\");");
1253         $self->pidl($fail);
1254         $self->deindent;
1255         $self->pidl("}");
1256
1257         if ($l->{TYPE} eq "POINTER") {
1258                 if ($l->{POINTER_TYPE} ne "ref") {
1259                         $self->pidl("if ($py_var == Py_None) {");
1260                         $self->indent;
1261                         $self->pidl("$var_name = NULL;");
1262                         $self->deindent;
1263                         $self->pidl("} else {");
1264                         $self->indent;
1265                 }
1266                 # if we want to handle more than one level of pointer in python interfaces
1267                 # then this is where we would need to allocate it
1268                 if ($l->{POINTER_TYPE} eq "ref") {
1269                         $self->pidl("$var_name = talloc_ptrtype($mem_ctx, $var_name);");
1270                         $self->pidl("if ($var_name == NULL) {");
1271                         $self->indent;
1272                         $self->pidl("PyErr_NoMemory();");
1273                         $self->pidl($fail);
1274                         $self->deindent;
1275                         $self->pidl("}");
1276                 } elsif ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::is_scalar($nl->{DATA_TYPE})
1277                          and not Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
1278                         $self->pidl("$var_name = talloc_ptrtype($mem_ctx, $var_name);");
1279                         $self->pidl("if ($var_name == NULL) {");
1280                         $self->indent;
1281                         $self->pidl("PyErr_NoMemory();");
1282                         $self->pidl($fail);
1283                         $self->deindent;
1284                         $self->pidl("}");
1285                 } else {
1286                         $self->pidl("$var_name = NULL;");
1287                 }
1288                 unless ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
1289                         $var_name = get_value_of($var_name);
1290                 }
1291                 $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, $nl, $var_name, $fail);
1292                 if ($l->{POINTER_TYPE} ne "ref") {
1293                         $self->deindent;
1294                         $self->pidl("}");
1295                 }
1296         } elsif ($l->{TYPE} eq "ARRAY") {
1297                 if ($pl && $pl->{TYPE} eq "POINTER") {
1298                         $var_name = get_pointer_to($var_name);
1299                 }
1300
1301                 if (is_charset_array($e, $l)) {
1302                         $self->ConvertStringFromPythonData($mem_ctx, $py_var, $var_name, $fail);
1303                 } else {
1304                         my $counter = "$e->{NAME}_cntr_$l->{LEVEL_INDEX}";
1305                         $self->pidl("PY_CHECK_TYPE(&PyList_Type, $py_var, $fail);");
1306                         $self->pidl("{");
1307                         $self->indent;
1308                         $self->pidl("int $counter;");
1309                         if (ArrayDynamicallyAllocated($e, $l)) {
1310                                 $self->pidl("$var_name = talloc_array_ptrtype($mem_ctx, $var_name, PyList_GET_SIZE($py_var));");
1311                                 $self->pidl("if (!$var_name) { $fail; }");
1312                                 $self->pidl("talloc_set_name_const($var_name, \"ARRAY: $var_name\");");
1313                         } else {
1314                                 $self->pidl("if (ARRAY_SIZE($var_name) != PyList_GET_SIZE($py_var)) {");
1315                                 $self->indent;
1316                                 $self->pidl("PyErr_Format(PyExc_TypeError, \"Expected list of type %s, length %zu, got %zd\", Py_TYPE($py_var)->tp_name, ARRAY_SIZE($var_name),  PyList_GET_SIZE($py_var));");
1317                                 $self->pidl("$fail");
1318                                 $self->deindent;
1319                                 $self->pidl("}");
1320                         }
1321                         $self->pidl("for ($counter = 0; $counter < PyList_GET_SIZE($py_var); $counter++) {");
1322                         $self->indent;
1323                         $self->ConvertObjectFromPythonLevel($env, $var_name, "PyList_GET_ITEM($py_var, $counter)", $e, $nl, $var_name."[$counter]", $fail);
1324                         $self->deindent;
1325                         $self->pidl("}");
1326                         $self->deindent;
1327                         $self->pidl("}");
1328                 }
1329         } elsif ($l->{TYPE} eq "DATA") {
1330                 if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE})) {
1331                         $var_name = get_pointer_to($var_name);
1332                 }
1333                 $self->ConvertObjectFromPythonData($mem_ctx, $py_var, $l->{DATA_TYPE}, $var_name, $fail, $e->{ORIGINAL});
1334         } elsif ($l->{TYPE} eq "SWITCH") {
1335                 $var_name = get_pointer_to($var_name);
1336                 my $switch = ParseExpr($l->{SWITCH_IS}, $env, $e);
1337                 my $switch_ptr = "$e->{NAME}_switch_$l->{LEVEL_INDEX}";
1338                 $self->pidl("{");
1339                 $self->indent;
1340                 my $union_type = mapTypeName($nl->{DATA_TYPE});
1341                 $self->pidl("$union_type *$switch_ptr;");
1342                 $self->pidl("$switch_ptr = py_export_" . $nl->{DATA_TYPE} . "($mem_ctx, $switch, $py_var);");
1343                 $self->fail_on_null($switch_ptr, $fail);
1344                 $self->assign($var_name, "$switch_ptr");
1345                 $self->deindent;
1346                 $self->pidl("}");
1347         } elsif ($l->{TYPE} eq "SUBCONTEXT") {
1348                 $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, $nl, $var_name, $fail);
1349         } else {
1350                 fatal($e->{ORIGINAL}, "unknown level type $l->{TYPE}");
1351         }
1352 }
1353
1354 sub ConvertObjectFromPython($$$$$$$)
1355 {
1356         my ($self, $env, $mem_ctx, $ctype, $cvar, $target, $fail) = @_;
1357
1358         $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $cvar, $ctype, $ctype->{LEVELS}[0], $target, $fail);
1359 }
1360
1361 sub ConvertScalarToPython($$$)
1362 {
1363         my ($self, $ctypename, $cvar) = @_;
1364
1365         die("expected string for $cvar, not $ctypename") if (ref($ctypename) eq "HASH");
1366
1367         $ctypename = expandAlias($ctypename);
1368
1369         if ($ctypename =~ /^(int64|dlong)$/) {
1370                 return "ndr_PyLong_FromLongLong($cvar)";
1371         }
1372
1373         if ($ctypename =~ /^(uint64|hyper|NTTIME_hyper|NTTIME|NTTIME_1sec|udlong|udlongr|uid_t|gid_t)$/) {
1374                 return "ndr_PyLong_FromUnsignedLongLong($cvar)";
1375         }
1376
1377         if ($ctypename =~ /^(char|int|int8|int16|int32|time_t)$/) {
1378                 return "PyInt_FromLong($cvar)";
1379         }
1380
1381         # Needed to ensure unsigned values in a 32 or 16 bit enum is
1382         # cast correctly to a uint32_t, not sign extended to a a
1383         # possibly 64 bit unsigned long.  (enums are signed in C,
1384         # unsigned in NDR)
1385         if ($ctypename =~ /^(uint32|uint3264)$/) {
1386                 return "ndr_PyLong_FromUnsignedLongLong((uint32_t)$cvar)";
1387         }
1388
1389         if ($ctypename =~ /^(uint|uint8|uint16|uint1632)$/) {
1390                 return "PyInt_FromLong((uint16_t)$cvar)";
1391         }
1392
1393         if ($ctypename eq "DATA_BLOB") {
1394                 return "PyString_FromStringAndSize((char *)($cvar).data, ($cvar).length)";
1395         }
1396
1397         if ($ctypename eq "NTSTATUS") {
1398                 return "PyErr_FromNTSTATUS($cvar)";
1399         }
1400
1401         if ($ctypename eq "WERROR") {
1402                 return "PyErr_FromWERROR($cvar)";
1403         }
1404
1405         if ($ctypename eq "HRESULT") {
1406                 return "PyErr_FromHRESULT($cvar)";
1407         }
1408
1409         if (($ctypename eq "string" or $ctypename eq "nbt_string" or $ctypename eq "nbt_name" or $ctypename eq "wrepl_nbt_name")) {
1410                 return "PyString_FromStringOrNULL($cvar)";
1411         }
1412
1413         if (($ctypename eq "dns_string" or $ctypename eq "dns_name")) {
1414                 return "PyString_FromStringOrNULL($cvar)";
1415         }
1416
1417         # Not yet supported
1418         if ($ctypename eq "string_array") { return "pytalloc_CObject_FromTallocPtr($cvar)"; }
1419         if ($ctypename eq "ipv4address") { return "PyString_FromStringOrNULL($cvar)"; }
1420         if ($ctypename eq "ipv6address") { return "PyString_FromStringOrNULL($cvar)"; }
1421         if ($ctypename eq "dnsp_name") { return "PyString_FromStringOrNULL($cvar)"; }
1422         if ($ctypename eq "dnsp_string") { return "PyString_FromStringOrNULL($cvar)"; }
1423         if ($ctypename eq "pointer") {
1424                 return "pytalloc_CObject_FromTallocPtr($cvar)";
1425         }
1426
1427         die("Unknown scalar type $ctypename");
1428 }
1429
1430 sub ConvertObjectToPythonData($$$$$;$)
1431 {
1432         my ($self, $mem_ctx, $ctype, $cvar, $location) = @_;
1433
1434         die("undef type for $cvar") unless(defined($ctype));
1435
1436         $ctype = resolveType($ctype);
1437
1438         my $actual_ctype = $ctype;
1439         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
1440                 $actual_ctype = $actual_ctype->{DATA};
1441         }
1442
1443         if ($actual_ctype->{TYPE} eq "ENUM") {
1444                 return $self->ConvertScalarToPython(Parse::Pidl::Typelist::enum_type_fn($actual_ctype), $cvar);
1445         } elsif ($actual_ctype->{TYPE} eq "BITMAP") {
1446                 return $self->ConvertScalarToPython(Parse::Pidl::Typelist::bitmap_type_fn($actual_ctype), $cvar);
1447         } elsif ($actual_ctype->{TYPE} eq "SCALAR") {
1448                 return $self->ConvertScalarToPython($actual_ctype->{NAME}, $cvar);
1449         } elsif ($actual_ctype->{TYPE} eq "UNION") {
1450                 fatal($ctype, "union without discriminant: " . mapTypeName($ctype) . ": $cvar");
1451         } elsif ($actual_ctype->{TYPE} eq "STRUCT" or $actual_ctype->{TYPE} eq "INTERFACE") {
1452                 my $ctype_name = $self->use_type_variable($ctype);
1453                 unless (defined($ctype_name)) {
1454                         error($location, "Unable to determine origin of type `" . mapTypeName($ctype) . "'");
1455                         return "NULL"; # FIXME!
1456                 }
1457                 return "pytalloc_reference_ex($ctype_name, $mem_ctx, $cvar)";
1458         }
1459
1460         fatal($location, "unknown type $actual_ctype->{TYPE} for ".mapTypeName($ctype) . ": $cvar");
1461 }
1462
1463 sub fail_on_null($$$)
1464 {
1465         my ($self, $var, $fail) = @_;
1466         $self->pidl("if ($var == NULL) {");
1467         $self->indent;
1468         $self->pidl($fail);
1469         $self->deindent;
1470         $self->pidl("}");
1471 }
1472
1473 sub ConvertObjectToPythonLevel($$$$$$)
1474 {
1475         my ($self, $mem_ctx, $env, $e, $l, $var_name, $py_var, $fail) = @_;
1476         my $nl = GetNextLevel($e, $l);
1477         if ($nl and $nl->{TYPE} eq "SUBCONTEXT") {
1478                 $nl = GetNextLevel($e, $nl);
1479         }
1480         my $pl = GetPrevLevel($e, $l);
1481         if ($pl and $pl->{TYPE} eq "SUBCONTEXT") {
1482                 $pl = GetPrevLevel($e, $pl);
1483         }
1484
1485         if ($l->{TYPE} eq "POINTER") {
1486                 if ($l->{POINTER_TYPE} ne "ref") {
1487                         $self->pidl("if ($var_name == NULL) {");
1488                         $self->indent;
1489                         $self->pidl("$py_var = Py_None;");
1490                         $self->pidl("Py_INCREF($py_var);");
1491                         $self->deindent;
1492                         $self->pidl("} else {");
1493                         $self->indent;
1494                 }
1495                 my $var_name2 = $var_name;
1496                 unless ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
1497                         $var_name2 = get_value_of($var_name);
1498                 }
1499                 $self->ConvertObjectToPythonLevel($var_name, $env, $e, $nl, $var_name2, $py_var, $fail);
1500                 if ($l->{POINTER_TYPE} ne "ref") {
1501                         $self->deindent;
1502                         $self->pidl("}");
1503                 }
1504         } elsif ($l->{TYPE} eq "ARRAY") {
1505                 if ($pl && $pl->{TYPE} eq "POINTER") {
1506                         $var_name = get_pointer_to($var_name);
1507                 }
1508
1509                 if (is_charset_array($e, $l)) {
1510                         # FIXME: Use Unix charset setting rather than utf-8
1511                         $self->pidl("if ($var_name == NULL) {");
1512                         $self->indent;
1513                         $self->pidl("$py_var = Py_None;");
1514                         $self->pidl("Py_INCREF($py_var);");
1515                         $self->deindent;
1516                         $self->pidl("} else {");
1517                         $self->indent;
1518                         $self->pidl("$py_var = PyUnicode_Decode($var_name, strlen($var_name), \"utf-8\", \"ignore\");");
1519                         $self->deindent;
1520                         $self->pidl("}");
1521                 } else {
1522                         die("No SIZE_IS for array $var_name") unless (defined($l->{SIZE_IS}));
1523                         my $length = $l->{SIZE_IS};
1524                         if (defined($l->{LENGTH_IS})) {
1525                                 $length = $l->{LENGTH_IS};
1526                         }
1527
1528                         $length = ParseExpr($length, $env, $e);
1529                         $self->pidl("$py_var = PyList_New($length);");
1530                         $self->fail_on_null($py_var, $fail);
1531                         $self->pidl("{");
1532                         $self->indent;
1533                         my $counter = "$e->{NAME}_cntr_$l->{LEVEL_INDEX}";
1534                         $self->pidl("int $counter;");
1535                         $self->pidl("for ($counter = 0; $counter < ($length); $counter++) {");
1536                         $self->indent;
1537                         my $member_var = "py_$e->{NAME}_$l->{LEVEL_INDEX}";
1538                         $self->pidl("PyObject *$member_var;");
1539                         $self->ConvertObjectToPythonLevel($var_name, $env, $e, $nl, $var_name."[$counter]", $member_var, $fail);
1540                         $self->pidl("PyList_SetItem($py_var, $counter, $member_var);");
1541                         $self->deindent;
1542                         $self->pidl("}");
1543                         $self->deindent;
1544                         $self->pidl("}");
1545                 }
1546         } elsif ($l->{TYPE} eq "SWITCH") {
1547                 $var_name = get_pointer_to($var_name);
1548                 my $switch = ParseExpr($l->{SWITCH_IS}, $env, $e);
1549                 $self->pidl("$py_var = py_import_" . $nl->{DATA_TYPE} . "($mem_ctx, $switch, $var_name);");
1550                 $self->fail_on_null($py_var, $fail);
1551
1552         } elsif ($l->{TYPE} eq "DATA") {
1553                 if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE})) {
1554                         $var_name = get_pointer_to($var_name);
1555                 }
1556                 my $conv = $self->ConvertObjectToPythonData($mem_ctx, $l->{DATA_TYPE}, $var_name, $e->{ORIGINAL});
1557                 $self->pidl("$py_var = $conv;");
1558         } elsif ($l->{TYPE} eq "SUBCONTEXT") {
1559                 $self->ConvertObjectToPythonLevel($mem_ctx, $env, $e, $nl, $var_name, $py_var, $fail);
1560         } else {
1561                 fatal($e->{ORIGINAL}, "Unknown level type $l->{TYPE} $var_name");
1562         }
1563 }
1564
1565 sub ConvertObjectToPython($$$$$$)
1566 {
1567         my ($self, $mem_ctx, $env, $ctype, $cvar, $py_var, $fail) = @_;
1568
1569         $self->ConvertObjectToPythonLevel($mem_ctx, $env, $ctype, $ctype->{LEVELS}[0], $cvar, $py_var, $fail);
1570 }
1571
1572 sub Parse($$$$$)
1573 {
1574     my($self,$basename,$ndr,$ndr_hdr,$hdr) = @_;
1575
1576         $self->{BASENAME} = $basename;
1577
1578     $self->pidl_hdr("
1579 /* Python wrapper functions auto-generated by pidl */
1580 #define PY_SSIZE_T_CLEAN 1 /* We use Py_ssize_t for PyArg_ParseTupleAndKeywords */
1581 #include <Python.h>
1582 #include \"includes.h\"
1583 #include <pytalloc.h>
1584 #include \"librpc/rpc/pyrpc.h\"
1585 #include \"librpc/rpc/pyrpc_util.h\"
1586 #include \"$hdr\"
1587 #include \"$ndr_hdr\"
1588
1589 /*
1590  * These functions are here to ensure they can be optimized out by
1591  * the compiler based on the constant input values
1592  */
1593
1594 static inline unsigned long long ndr_sizeof2uintmax(size_t var_size)
1595 {
1596         switch (var_size) {
1597         case 8:
1598                 return UINT64_MAX;
1599         case 4:
1600                 return UINT32_MAX;
1601         case 2:
1602                 return UINT16_MAX;
1603         case 1:
1604                 return UINT8_MAX;
1605         }
1606
1607         return 0;
1608 }
1609
1610 static inline long long ndr_sizeof2intmax(size_t var_size)
1611 {
1612         switch (var_size) {
1613         case 8:
1614                 return INT64_MAX;
1615         case 4:
1616                 return INT32_MAX;
1617         case 2:
1618                 return INT16_MAX;
1619         case 1:
1620                 return INT8_MAX;
1621         }
1622
1623         return 0;
1624 }
1625
1626 static inline PyObject *ndr_PyLong_FromLongLong(long long v)
1627 {
1628         if (v > LONG_MAX || v < LONG_MIN) {
1629                 return PyLong_FromLongLong(v);
1630         } else {
1631                 return PyInt_FromLong(v);
1632         }
1633 }
1634
1635 static inline PyObject *ndr_PyLong_FromUnsignedLongLong(unsigned long long v)
1636 {
1637         if (v > LONG_MAX) {
1638                 return PyLong_FromUnsignedLongLong(v);
1639         } else {
1640                 return PyInt_FromLong(v);
1641         }
1642 }
1643
1644 ");
1645
1646         foreach my $x (@$ndr) {
1647                 ($x->{TYPE} eq "IMPORT") && $self->Import(@{$x->{PATHS}});
1648             ($x->{TYPE} eq "INTERFACE") && $self->Interface($x, $basename);
1649         }
1650
1651         $self->pidl("static PyMethodDef $basename\_methods[] = {");
1652         $self->indent;
1653         foreach (@{$self->{module_methods}}) {
1654                 my ($fn_name, $pyfn_name, $flags, $doc) = @$_;
1655                 $self->pidl("{ \"$fn_name\", (PyCFunction)$pyfn_name, $flags, $doc },");
1656         }
1657
1658         $self->pidl("{ NULL, NULL, 0, NULL }");
1659         $self->deindent;
1660         $self->pidl("};");
1661
1662         $self->pidl("");
1663
1664         $self->pidl_hdr("void init$basename(void);");
1665         $self->pidl("void init$basename(void)");
1666         $self->pidl("{");
1667         $self->indent;
1668         $self->pidl("PyObject *m;");
1669         foreach my $h (@{$self->{module_imports}}) {
1670                 $self->pidl("PyObject *$h->{'key'};");
1671         }
1672         $self->pidl("");
1673
1674         foreach my $h (@{$self->{module_imports}}) {
1675                 my $var_name = $h->{'key'};
1676                 my $module_path = $h->{'val'};
1677                 $self->pidl("$var_name = PyImport_ImportModule(\"$module_path\");");
1678                 $self->pidl("if ($var_name == NULL)");
1679                 $self->pidl("\treturn;");
1680                 $self->pidl("");
1681         }
1682
1683         foreach my $h (@{$self->{type_imports}}) {
1684                 my $type_var = "$h->{'key'}\_Type";
1685                 my $module_path = $h->{'val'};
1686                 $self->pidl_hdr("static PyTypeObject *$type_var;\n");
1687                 my $pretty_name = PrettifyTypeName($h->{'key'}, $module_path);
1688                 my $module_var = "dep_$module_path";
1689                 $module_var =~ s/\./_/g;
1690                 $self->pidl("$type_var = (PyTypeObject *)PyObject_GetAttrString($module_var, \"$pretty_name\");");
1691                 $self->pidl("if ($type_var == NULL)");
1692                 $self->pidl("\treturn;");
1693                 $self->pidl("");
1694         }
1695
1696         $self->pidl($_) foreach (@{$self->{prereadycode}});
1697
1698         foreach (@{$self->{ready_types}}) {
1699                 $self->pidl("if (PyType_Ready($_) < 0)");
1700                 $self->pidl("\treturn;");
1701         }
1702
1703         $self->pidl($_) foreach (@{$self->{postreadycode}});
1704
1705         foreach (@{$self->{patch_type_calls}}) {
1706                 my ($typename, $cvar) = @$_;
1707                 $self->pidl("#ifdef PY_".uc($typename)."_PATCH");
1708                 $self->pidl("PY_".uc($typename)."_PATCH($cvar);");
1709                 $self->pidl("#endif");
1710         }
1711
1712         $self->pidl("");
1713
1714         $self->pidl("m = Py_InitModule3(\"$basename\", $basename\_methods, \"$basename DCE/RPC\");");
1715         $self->pidl("if (m == NULL)");
1716         $self->pidl("\treturn;");
1717         $self->pidl("");
1718         foreach my $h (@{$self->{constants}}) {
1719                 my $pretty_name = PrettifyTypeName($h->{'key'}, $basename);
1720                 my $py_obj;
1721                 my ($ctype, $cvar) = @{$h->{'val'}};
1722                 if ($cvar =~ /^[0-9]+$/ or $cvar =~ /^0x[0-9a-fA-F]+$/) {
1723                         $py_obj = "ndr_PyLong_FromUnsignedLongLong($cvar)";
1724                 } elsif ($cvar =~ /^".*"$/) {
1725                         $py_obj = "PyString_FromString($cvar)";
1726                 } else {
1727                         $py_obj = $self->ConvertObjectToPythonData("NULL", expandAlias($ctype), $cvar, undef);
1728                 }
1729
1730                 $self->pidl("PyModule_AddObject(m, \"$pretty_name\", $py_obj);");
1731         }
1732
1733         foreach (@{$self->{module_objects}}) {
1734                 my ($object_name, $c_name) = @$_;
1735                 $self->pidl("Py_INCREF($c_name);");
1736                 $self->pidl("PyModule_AddObject(m, \"$object_name\", $c_name);");
1737         }
1738
1739         $self->pidl("#ifdef PY_MOD_".uc($basename)."_PATCH");
1740         $self->pidl("PY_MOD_".uc($basename)."_PATCH(m);");
1741         $self->pidl("#endif");
1742
1743         $self->pidl("");
1744         $self->deindent;
1745         $self->pidl("}");
1746     return ($self->{res_hdr} . $self->{res});
1747 }
1748
1749 1;