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