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(ReturnTypeElement 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($$$$)
 123 {
 124         my ($self, $mem_ctx, $type, $switch, $name) = @_;
 125
 126         $self->pidl("PyObject *ret;");
 127         $self->pidl("");
 128
 129         $self->pidl("switch ($switch) {");
 130         $self->indent;
 131
 132         foreach my $e (@{$type->{ELEMENTS}}) {
 133                 $self->pidl("$e->{CASE}:");
 134
 135                 $self->indent;
 136
 137                 if ($e->{NAME}) {
 138                         $self->ConvertObjectToPython($mem_ctx, {}, $e, "$name->$e->{NAME}", "ret", "return NULL;");
 139                 } else {
 140                         $self->pidl("ret = Py_None;");
 141                         $self->pidl("Py_INCREF(ret);");
 142                 }
 143
 144                 $self->pidl("return ret;");
 145                 $self->pidl("");
 146
 147                 $self->deindent;
 148         }
 149
 150         $self->deindent;
 151         $self->pidl("}");
 152
 153         $self->pidl("PyErr_SetString(PyExc_TypeError, \"unknown union level\");");
 154         $self->pidl("return NULL;");
 155 }
 156
 157 sub FromPythonToUnionFunction($$$$$)
 158 {
 159         my ($self, $type, $typename, $switch, $mem_ctx, $name) = @_;
 160
 161         my $has_default = 0;
 162
 163         $self->pidl("$typename *ret = talloc_zero($mem_ctx, $typename);");
 164
 165         $self->pidl("switch ($switch) {");
 166         $self->indent;
 167
 168         foreach my $e (@{$type->{ELEMENTS}}) {
 169                 $self->pidl("$e->{CASE}:");
 170                 if ($e->{CASE} eq "default") { $has_default = 1; }
 171                 $self->indent;
 172                 if ($e->{NAME}) {
 173                         $self->ConvertObjectFromPython({}, $mem_ctx, $e, $name, "ret->$e->{NAME}", "talloc_free(ret); return NULL;");
 174                 }
 175                 $self->pidl("break;");
 176                 $self->deindent;
 177                 $self->pidl("");
 178         }
 179
 180         if (!$has_default) {
 181                 $self->pidl("default:");
 182                 $self->indent;
 183                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"invalid union level value\");");
 184                 $self->pidl("talloc_free(ret);");
 185                 $self->pidl("ret = NULL;");
 186                 $self->deindent;
 187         }
 188
 189         $self->deindent;
 190         $self->pidl("}");
 191         $self->pidl("");
 192         $self->pidl("return ret;");
 193 }
 194
 195 sub PythonElementGetSet($$$$$$) {
 196         my ($self, $name, $cname, $ename, $e, $env) = @_;
 197
 198         my $varname = "object->$ename";
 199         $self->pidl("static PyObject *py_$name\_get_$e->{NAME}(PyObject *obj, void *closure)");
 200         $self->pidl("{");
 201         $self->indent;
 202         $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(obj);");
 203         $self->pidl("PyObject *py_$e->{NAME};");
 204         $self->ConvertObjectToPython("pytalloc_get_mem_ctx(obj)", $env, $e, $varname, "py_$e->{NAME}", "return NULL;");
 205         $self->pidl("return py_$e->{NAME};");
 206         $self->deindent;
 207         $self->pidl("}");
 208         $self->pidl("");
 209
 210         $self->pidl("static int py_$name\_set_$e->{NAME}(PyObject *py_obj, PyObject *value, void *closure)");
 211         $self->pidl("{");
 212         $self->indent;
 213         $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(py_obj);");
 214         my $mem_ctx = "pytalloc_get_mem_ctx(py_obj)";
 215         my $l = $e->{LEVELS}[0];
 216         my $nl = GetNextLevel($e, $l);
 217         if ($l->{TYPE} eq "POINTER" and
 218                 not ($nl->{TYPE} eq "ARRAY" and ($nl->{IS_FIXED} or is_charset_array($e, $nl))) and
 219                 not ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE}))) {
 220                 $self->pidl("talloc_unlink($mem_ctx, discard_const($varname));");
 221         }
 222         $self->ConvertObjectFromPython($env, $mem_ctx, $e, "value", $varname, "return -1;");
 223         $self->pidl("return 0;");
 224         $self->deindent;
 225         $self->pidl("}");
 226         $self->pidl("");
 227 }
 228
 229 sub PythonStruct($$$$$$)
 230 {
 231         my ($self, $modulename, $prettyname, $name, $cname, $d) = @_;
 232
 233         my $env = GenerateStructEnv($d, "object");
 234
 235         $self->pidl("");
 236
 237         my $getsetters = "NULL";
 238
 239         if ($#{$d->{ELEMENTS}} > -1) {
 240                 foreach my $e (@{$d->{ELEMENTS}}) {
 241                         $self->PythonElementGetSet($name, $cname, $e->{NAME}, $e, $env);
 242                 }
 243
 244                 $getsetters = "py_$name\_getsetters";
 245                 $self->pidl("static PyGetSetDef ".$getsetters."[] = {");
 246                 $self->indent;
 247                 foreach my $e (@{$d->{ELEMENTS}}) {
 248                         $self->pidl("{");
 249                         $self->indent;
 250                         $self->pidl(".name = discard_const_p(char, \"$e->{NAME}\"),");
 251                         $self->pidl(".get = py_$name\_get_$e->{NAME},");
 252                         $self->pidl(".set = py_$name\_set_$e->{NAME},");
 253                         $self->pidl(".doc = discard_const_p(char, \"PIDL-generated element of base type $e->{TYPE}\")");
 254                         $self->deindent;
 255                         $self->pidl("},");
 256                 }
 257                 $self->pidl("{ .name = NULL }");
 258                 $self->deindent;
 259                 $self->pidl("};");
 260                 $self->pidl("");
 261         }
 262
 263         $self->pidl("static PyObject *py_$name\_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
 264         $self->pidl("{");
 265         $self->indent;
 266         $self->pidl("return pytalloc_new($cname, type);");
 267         $self->deindent;
 268         $self->pidl("}");
 269         $self->pidl("");
 270
 271         my $py_methods = "NULL";
 272
 273         # If the struct is not public there ndr_pull/ndr_push functions will
 274         # be static so not callable from here
 275         if (has_property($d, "public")) {
 276                 $self->pidl("static PyObject *py_$name\_ndr_pack(PyObject *py_obj)");
 277                 $self->pidl("{");
 278                 $self->indent;
 279                 $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(py_obj);");
 280                 $self->pidl("PyObject *ret = NULL;");
 281                 $self->pidl("DATA_BLOB blob;");
 282                 $self->pidl("enum ndr_err_code err;");
 283                 $self->pidl("TALLOC_CTX *tmp_ctx = talloc_new(pytalloc_get_mem_ctx(py_obj));");
 284                 $self->pidl("if (tmp_ctx == NULL) {");
 285                 $self->indent;
 286                 $self->pidl("PyErr_SetNdrError(NDR_ERR_ALLOC);");
 287                 $self->pidl("return NULL;");
 288                 $self->deindent;
 289                 $self->pidl("}");
 290                 $self->pidl("err = ndr_push_struct_blob(&blob, tmp_ctx, object, (ndr_push_flags_fn_t)ndr_push_$name);");
 291                 $self->pidl("if (!NDR_ERR_CODE_IS_SUCCESS(err)) {");
 292                 $self->indent;
 293                 $self->pidl("TALLOC_FREE(tmp_ctx);");
 294                 $self->pidl("PyErr_SetNdrError(err);");
 295                 $self->pidl("return NULL;");
 296                 $self->deindent;
 297                 $self->pidl("}");
 298                 $self->pidl("");
 299                 $self->pidl("ret = PyString_FromStringAndSize((char *)blob.data, blob.length);");
 300                 $self->pidl("TALLOC_FREE(tmp_ctx);");
 301                 $self->pidl("return ret;");
 302                 $self->deindent;
 303                 $self->pidl("}");
 304                 $self->pidl("");
 305
 306                 $self->pidl("static PyObject *py_$name\_ndr_unpack(PyObject *py_obj, PyObject *args, PyObject *kwargs)");
 307                 $self->pidl("{");
 308                 $self->indent;
 309                 $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(py_obj);");
 310                 $self->pidl("DATA_BLOB blob;");
 311                 $self->pidl("Py_ssize_t blob_length = 0;");
 312                 $self->pidl("enum ndr_err_code err;");
 313                 $self->pidl("const char * const kwnames[] = { \"data_blob\", \"allow_remaining\", NULL };");
 314                 $self->pidl("PyObject *allow_remaining_obj = NULL;");
 315                 $self->pidl("bool allow_remaining = false;");
 316                 $self->pidl("");
 317                 $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"s#|O:__ndr_unpack__\",");
 318                 $self->indent;
 319                 $self->pidl("discard_const_p(char *, kwnames),");
 320                 $self->pidl("&blob.data, &blob_length,");
 321                 $self->pidl("&allow_remaining_obj)) {");
 322                 $self->deindent;
 323                 $self->indent;
 324                 $self->pidl("return NULL;");
 325                 $self->deindent;
 326                 $self->pidl("}");
 327                 $self->pidl("blob.length = blob_length;");
 328                 $self->pidl("");
 329                 $self->pidl("if (allow_remaining_obj && PyObject_IsTrue(allow_remaining_obj)) {");
 330                 $self->indent;
 331                 $self->pidl("allow_remaining = true;");
 332                 $self->deindent;
 333                 $self->pidl("}");
 334                 $self->pidl("");
 335                 $self->pidl("if (allow_remaining) {");
 336                 $self->indent;
 337                 $self->pidl("err = ndr_pull_struct_blob(&blob, pytalloc_get_mem_ctx(py_obj), object, (ndr_pull_flags_fn_t)ndr_pull_$name);");
 338                 $self->deindent;
 339                 $self->pidl("} else {");
 340                 $self->indent;
 341                 $self->pidl("err = ndr_pull_struct_blob_all(&blob, pytalloc_get_mem_ctx(py_obj), object, (ndr_pull_flags_fn_t)ndr_pull_$name);");
 342                 $self->deindent;
 343                 $self->pidl("}");
 344                 $self->pidl("if (!NDR_ERR_CODE_IS_SUCCESS(err)) {");
 345                 $self->indent;
 346                 $self->pidl("PyErr_SetNdrError(err);");
 347                 $self->pidl("return NULL;");
 348                 $self->deindent;
 349                 $self->pidl("}");
 350                 $self->pidl("");
 351                 $self->pidl("Py_RETURN_NONE;");
 352                 $self->deindent;
 353                 $self->pidl("}");
 354                 $self->pidl("");
 355
 356                 $self->pidl("static PyObject *py_$name\_ndr_print(PyObject *py_obj)");
 357                 $self->pidl("{");
 358                 $self->indent;
 359                 $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(py_obj);");
 360                 $self->pidl("PyObject *ret;");
 361                 $self->pidl("char *retstr;");
 362                 $self->pidl("");
 363                 $self->pidl("retstr = ndr_print_struct_string(pytalloc_get_mem_ctx(py_obj), (ndr_print_fn_t)ndr_print_$name, \"$name\", object);");
 364                 $self->pidl("ret = PyString_FromString(retstr);");
 365                 $self->pidl("talloc_free(retstr);");
 366                 $self->pidl("");
 367                 $self->pidl("return ret;");
 368                 $self->deindent;
 369                 $self->pidl("}");
 370                 $self->pidl("");
 371
 372                 $py_methods = "py_$name\_methods";
 373                 $self->pidl("static PyMethodDef $py_methods\[] = {");
 374                 $self->indent;
 375                 $self->pidl("{ \"__ndr_pack__\", (PyCFunction)py_$name\_ndr_pack, METH_NOARGS, \"S.ndr_pack(object) -> blob\\nNDR pack\" },");
 376                 $self->pidl("{ \"__ndr_unpack__\", (PyCFunction)py_$name\_ndr_unpack, METH_VARARGS|METH_KEYWORDS, \"S.ndr_unpack(class, blob, allow_remaining=False) -> None\\nNDR unpack\" },");
 377                 $self->pidl("{ \"__ndr_print__\", (PyCFunction)py_$name\_ndr_print, METH_NOARGS, \"S.ndr_print(object) -> None\\nNDR print\" },");
 378                 $self->pidl("{ NULL, NULL, 0, NULL }");
 379                 $self->deindent;
 380                 $self->pidl("};");
 381                 $self->pidl("");
 382         }
 383
 384         $self->pidl_hdr("static PyTypeObject $name\_Type;\n");
 385         $self->pidl("");
 386         my $docstring = $self->DocString($d, $name);
 387         my $typeobject = "$name\_Type";
 388         $self->pidl("static PyTypeObject $typeobject = {");
 389         $self->indent;
 390         $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
 391         $self->pidl(".tp_name = \"$modulename.$prettyname\",");
 392         $self->pidl(".tp_getset = $getsetters,");
 393         if ($docstring) {
 394                 $self->pidl(".tp_doc = $docstring,");
 395         }
 396         $self->pidl(".tp_methods = $py_methods,");
 397         $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 398         $self->pidl(".tp_new = py_$name\_new,");
 399         $self->deindent;
 400         $self->pidl("};");
 401
 402         $self->pidl("");
 403
 404         my $talloc_typename = $self->import_type_variable("talloc", "BaseObject");
 405         $self->register_module_prereadycode(["$name\_Type.tp_base = $talloc_typename;",
 406                                              "$name\_Type.tp_basicsize = pytalloc_BaseObject_size();",
 407                                              ""]);
 408
 409         return "&$typeobject";
 410 }
 411
 412 sub PythonFunctionStruct($$$$)
 413 {
 414         my ($self, $modulename, $fn, $iface, $prettyname) = @_;
 415
 416         my $inenv = GenerateFunctionInEnv($fn, "object->");
 417         my $outenv = GenerateFunctionOutEnv($fn, "object->");
 418
 419         my $name = "$fn->{NAME}";
 420         my $cname = "struct $name";
 421
 422         $self->pidl("");
 423
 424         my $getsetters = "NULL";
 425
 426         foreach my $e (@{$fn->{ELEMENTS}}) {
 427                 if (grep(/in/,@{$e->{DIRECTION}})) {
 428                         my $inname = "$name\_in";
 429                         my $ename = "in.$e->{NAME}";
 430                         $self->PythonElementGetSet($inname, $cname, $ename, $e, $inenv);
 431                 }
 432                 if (grep(/out/,@{$e->{DIRECTION}})) {
 433                         my $outname = "$name\_out";
 434                         my $ename = "out.$e->{NAME}";
 435                         $self->PythonElementGetSet($outname, $cname, $ename, $e, $outenv);
 436                 }
 437         }
 438
 439         if (defined($fn->{RETURN_TYPE})) {
 440                 my $e = ReturnTypeElement($fn);
 441                 my $ename = "out.result";
 442                 $self->PythonElementGetSet($name, $cname, $ename, $e, $outenv);
 443         }
 444
 445         $getsetters = "py_$name\_getsetters";
 446         $self->pidl("static PyGetSetDef ".$getsetters."[] = {");
 447         $self->indent;
 448         foreach my $e (@{$fn->{ELEMENTS}}) {
 449                 if (grep(/in/,@{$e->{DIRECTION}})) {
 450                         $self->pidl("{");
 451                         $self->indent;
 452                         $self->pidl(".name = discard_const_p(char, \"in_$e->{NAME}\"),");
 453                         $self->pidl(".get = py_$name\_in_get_$e->{NAME},");
 454                         $self->pidl(".set = py_$name\_in_set_$e->{NAME},");
 455                         $self->pidl(".doc = discard_const_p(char, \"PIDL-generated element of base type $e->{TYPE}\")");
 456                         $self->deindent;
 457                         $self->pidl("},");
 458                 }
 459                 if (grep(/out/,@{$e->{DIRECTION}})) {
 460                         $self->pidl("{");
 461                         $self->indent;
 462                         $self->pidl(".name = discard_const_p(char, \"out_$e->{NAME}\"),");
 463                         $self->pidl(".get = py_$name\_out_get_$e->{NAME},");
 464                         $self->pidl(".set = py_$name\_out_set_$e->{NAME},");
 465                         $self->pidl(".doc = discard_const_p(char, \"PIDL-generated element of base type $e->{TYPE}\")");
 466                         $self->deindent;
 467                         $self->pidl("},");
 468                 }
 469         }
 470         if (defined($fn->{RETURN_TYPE})) {
 471                 $self->pidl("{");
 472                 $self->indent;
 473                 $self->pidl(".name = discard_const_p(char, \"result\"),");
 474                 $self->pidl(".get = py_$name\_get_result,");
 475                 $self->pidl(".set = py_$name\_set_result,");
 476                 $self->pidl(".doc = discard_const_p(char, \"PIDL-generated element of type $fn->{RETURN_TYPE}\")");
 477                 $self->deindent;
 478                 $self->pidl("},");
 479         }
 480         $self->pidl("{ .name = NULL }");
 481         $self->deindent;
 482         $self->pidl("};");
 483         $self->pidl("");
 484
 485         $self->pidl("static PyObject *py_$name\_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
 486         $self->pidl("{");
 487         $self->indent;
 488         $self->pidl("return pytalloc_new($cname, type);");
 489         $self->deindent;
 490         $self->pidl("}");
 491         $self->pidl("");
 492
 493         my $py_methods = "NULL";
 494
 495         my $ndr_call = "const struct ndr_interface_call *call = NULL;";
 496         my $object_ptr = "$cname *object = ($cname *)pytalloc_get_ptr(py_obj);";
 497
 498         $self->pidl("static PyObject *py_$name\_ndr_opnum(PyTypeObject *type)");
 499         $self->pidl("{");
 500         $self->indent;
 501         $self->pidl("");
 502         $self->pidl("");
 503         $self->pidl("return PyInt_FromLong($fn->{OPNUM});");
 504         $self->deindent;
 505         $self->pidl("}");
 506         $self->pidl("");
 507
 508         $self->pidl("static PyObject *py_$name\_ndr_pack(PyObject *py_obj, int ndr_inout_flags, uint32_t ndr_push_flags)");
 509         $self->pidl("{");
 510         $self->indent;
 511         $self->pidl("$ndr_call");
 512         $self->pidl("$object_ptr");
 513         $self->pidl("PyObject *ret = NULL;");
 514         $self->pidl("struct ndr_push *push = NULL;");
 515         $self->pidl("DATA_BLOB blob;");
 516         $self->pidl("enum ndr_err_code err;");
 517         $self->pidl("");
 518         $self->pidl("if (ndr_table_$iface\.num_calls < $fn->{OPNUM}) {");
 519         $self->indent;
 520         $self->pidl("PyErr_SetString(PyExc_TypeError, \"Internal Error, ndr_interface_call missing for py_$name\_ndr_pack\");");
 521         $self->pidl("return NULL;");
 522         $self->deindent;
 523         $self->pidl("}");
 524         $self->pidl("call = &ndr_table_$iface\.calls[$fn->{OPNUM}];");
 525         $self->pidl("");
 526         $self->pidl("push = ndr_push_init_ctx(pytalloc_get_mem_ctx(py_obj));");
 527         $self->pidl("if (push == NULL) {");
 528         $self->indent;
 529         $self->pidl("PyErr_SetNdrError(NDR_ERR_ALLOC);");
 530         $self->pidl("return NULL;");
 531         $self->deindent;
 532         $self->pidl("}");
 533         $self->pidl("");
 534         $self->pidl("push->flags |= ndr_push_flags;");
 535         $self->pidl("");
 536         $self->pidl("err = call->ndr_push(push, ndr_inout_flags, object);");
 537         $self->pidl("if (!NDR_ERR_CODE_IS_SUCCESS(err)) {");
 538         $self->indent;
 539         $self->pidl("TALLOC_FREE(push);");
 540         $self->pidl("PyErr_SetNdrError(err);");
 541         $self->pidl("return NULL;");
 542         $self->deindent;
 543         $self->pidl("}");
 544         $self->pidl("blob = ndr_push_blob(push);");
 545         $self->pidl("ret = PyString_FromStringAndSize((char *)blob.data, blob.length);");
 546         $self->pidl("TALLOC_FREE(push);");
 547         $self->pidl("return ret;");
 548         $self->deindent;
 549         $self->pidl("}");
 550         $self->pidl("");
 551
 552         $self->pidl("static PyObject *py_$name\_ndr_pack_in(PyObject *py_obj, PyObject *args, PyObject *kwargs)");
 553         $self->pidl("{");
 554         $self->indent;
 555         $self->pidl("const char * const kwnames[] = { \"bigendian\", \"ndr64\", NULL };");
 556         $self->pidl("PyObject *bigendian_obj = NULL;");
 557         $self->pidl("PyObject *ndr64_obj = NULL;");
 558         $self->pidl("uint32_t ndr_push_flags = 0;");
 559         $self->pidl("");
 560         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"|OO:__ndr_pack_in__\",");
 561         $self->indent;
 562         $self->pidl("discard_const_p(char *, kwnames),");
 563         $self->pidl("&bigendian_obj,");
 564         $self->pidl("&ndr64_obj)) {");
 565         $self->deindent;
 566         $self->indent;
 567         $self->pidl("return NULL;");
 568         $self->deindent;
 569         $self->pidl("}");
 570         $self->pidl("");
 571         $self->pidl("if (bigendian_obj && PyObject_IsTrue(bigendian_obj)) {");
 572         $self->indent;
 573         $self->pidl("ndr_push_flags |= LIBNDR_FLAG_BIGENDIAN;");
 574         $self->deindent;
 575         $self->pidl("}");
 576         $self->pidl("if (ndr64_obj && PyObject_IsTrue(ndr64_obj)) {");
 577         $self->indent;
 578         $self->pidl("ndr_push_flags |= LIBNDR_FLAG_NDR64;");
 579         $self->deindent;
 580         $self->pidl("}");
 581         $self->pidl("");
 582         $self->pidl("return py_$name\_ndr_pack(py_obj, NDR_IN, ndr_push_flags);");
 583         $self->deindent;
 584         $self->pidl("}");
 585         $self->pidl("");
 586
 587         $self->pidl("static PyObject *py_$name\_ndr_pack_out(PyObject *py_obj, PyObject *args, PyObject *kwargs)");
 588         $self->pidl("{");
 589         $self->indent;
 590         $self->pidl("const char * const kwnames[] = { \"bigendian\", \"ndr64\", NULL };");
 591         $self->pidl("PyObject *bigendian_obj = NULL;");
 592         $self->pidl("PyObject *ndr64_obj = NULL;");
 593         $self->pidl("uint32_t ndr_push_flags = 0;");
 594         $self->pidl("");
 595         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"|OO:__ndr_pack_out__\",");
 596         $self->indent;
 597         $self->pidl("discard_const_p(char *, kwnames),");
 598         $self->pidl("&bigendian_obj,");
 599         $self->pidl("&ndr64_obj)) {");
 600         $self->deindent;
 601         $self->indent;
 602         $self->pidl("return NULL;");
 603         $self->deindent;
 604         $self->pidl("}");
 605         $self->pidl("");
 606         $self->pidl("if (bigendian_obj && PyObject_IsTrue(bigendian_obj)) {");
 607         $self->indent;
 608         $self->pidl("ndr_push_flags |= LIBNDR_FLAG_BIGENDIAN;");
 609         $self->deindent;
 610         $self->pidl("}");
 611         $self->pidl("if (ndr64_obj && PyObject_IsTrue(ndr64_obj)) {");
 612         $self->indent;
 613         $self->pidl("ndr_push_flags |= LIBNDR_FLAG_NDR64;");
 614         $self->deindent;
 615         $self->pidl("}");
 616         $self->pidl("");
 617         $self->pidl("return py_$name\_ndr_pack(py_obj, NDR_OUT, ndr_push_flags);");
 618         $self->deindent;
 619         $self->pidl("}");
 620         $self->pidl("");
 621
 622         $self->pidl("static PyObject *py_$name\_ndr_unpack(PyObject *py_obj, const DATA_BLOB *blob, int ndr_inout_flags, uint32_t ndr_pull_flags, bool allow_remaining)");
 623         $self->pidl("{");
 624         $self->indent;
 625         $self->pidl("$ndr_call");
 626         $self->pidl("$object_ptr");
 627         $self->pidl("struct ndr_pull *pull = NULL;");
 628         $self->pidl("enum ndr_err_code err;");
 629         $self->pidl("");
 630         $self->pidl("if (ndr_table_$iface\.num_calls < $fn->{OPNUM}) {");
 631         $self->indent;
 632         $self->pidl("PyErr_SetString(PyExc_TypeError, \"Internal Error, ndr_interface_call missing for py_$name\_ndr_unpack\");");
 633         $self->pidl("return NULL;");
 634         $self->deindent;
 635         $self->pidl("}");
 636         $self->pidl("call = &ndr_table_$iface\.calls[$fn->{OPNUM}];");
 637         $self->pidl("");
 638         $self->pidl("pull = ndr_pull_init_blob(blob, object);");
 639         $self->pidl("if (pull == NULL) {");
 640         $self->indent;
 641         $self->pidl("PyErr_SetNdrError(NDR_ERR_ALLOC);");
 642         $self->pidl("return NULL;");
 643         $self->deindent;
 644         $self->pidl("}");
 645         $self->pidl("");
 646         $self->pidl("pull->flags |= ndr_pull_flags;");
 647         $self->pidl("");
 648         $self->pidl("err = call->ndr_pull(pull, ndr_inout_flags, object);");
 649         $self->pidl("if (!NDR_ERR_CODE_IS_SUCCESS(err)) {");
 650         $self->indent;
 651         $self->pidl("TALLOC_FREE(pull);");
 652         $self->pidl("PyErr_SetNdrError(err);");
 653         $self->pidl("return NULL;");
 654         $self->deindent;
 655         $self->pidl("}");
 656         $self->pidl("if (!allow_remaining) {");
 657         $self->indent;
 658         $self->pidl("uint32_t highest_ofs;");
 659         $self->pidl("");
 660         $self->pidl("if (pull->offset > pull->relative_highest_offset) {");
 661         $self->indent;
 662         $self->pidl("highest_ofs = pull->offset;");
 663         $self->deindent;
 664         $self->pidl("} else {");
 665         $self->indent;
 666         $self->pidl("highest_ofs = pull->relative_highest_offset;");
 667         $self->deindent;
 668         $self->pidl("}");
 669         $self->pidl("if (highest_ofs < pull->data_size) {");
 670         $self->indent;
 671         $self->pidl("err = ndr_pull_error(pull, NDR_ERR_UNREAD_BYTES,");
 672         $self->indent;
 673         $self->pidl("\"not all bytes consumed ofs[%u] size[%u]\",");
 674         $self->pidl("highest_ofs, pull->data_size);");
 675         $self->deindent;
 676         $self->pidl("TALLOC_FREE(pull);");
 677         $self->pidl("PyErr_SetNdrError(err);");
 678         $self->pidl("return NULL;");
 679         $self->deindent;
 680         $self->pidl("}");
 681         $self->deindent;
 682         $self->pidl("}");
 683         $self->pidl("");
 684         $self->pidl("TALLOC_FREE(pull);");
 685         $self->pidl("Py_RETURN_NONE;");
 686         $self->deindent;
 687         $self->pidl("}");
 688         $self->pidl("");
 689
 690         $self->pidl("static PyObject *py_$name\_ndr_unpack_in(PyObject *py_obj, PyObject *args, PyObject *kwargs)");
 691         $self->pidl("{");
 692         $self->indent;
 693         $self->pidl("DATA_BLOB blob;");
 694         $self->pidl("Py_ssize_t blob_length = 0;");
 695         $self->pidl("const char * const kwnames[] = { \"data_blob\", \"bigendian\", \"ndr64\", \"allow_remaining\", NULL };");
 696         $self->pidl("PyObject *bigendian_obj = NULL;");
 697         $self->pidl("PyObject *ndr64_obj = NULL;");
 698         $self->pidl("uint32_t ndr_pull_flags = LIBNDR_FLAG_REF_ALLOC;");
 699         $self->pidl("PyObject *allow_remaining_obj = NULL;");
 700         $self->pidl("bool allow_remaining = false;");
 701         $self->pidl("");
 702         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"s#|OOO:__ndr_unpack_in__\",");
 703         $self->indent;
 704         $self->pidl("discard_const_p(char *, kwnames),");
 705         $self->pidl("&blob.data, &blob_length,");
 706         $self->pidl("&bigendian_obj,");
 707         $self->pidl("&ndr64_obj,");
 708         $self->pidl("&allow_remaining_obj)) {");
 709         $self->deindent;
 710         $self->indent;
 711         $self->pidl("return NULL;");
 712         $self->deindent;
 713         $self->pidl("}");
 714         $self->pidl("blob.length = blob_length;");
 715         $self->pidl("");
 716         $self->pidl("if (bigendian_obj && PyObject_IsTrue(bigendian_obj)) {");
 717         $self->indent;
 718         $self->pidl("ndr_pull_flags |= LIBNDR_FLAG_BIGENDIAN;");
 719         $self->deindent;
 720         $self->pidl("}");
 721         $self->pidl("if (ndr64_obj && PyObject_IsTrue(ndr64_obj)) {");
 722         $self->indent;
 723         $self->pidl("ndr_pull_flags |= LIBNDR_FLAG_NDR64;");
 724         $self->deindent;
 725         $self->pidl("}");
 726         $self->pidl("");
 727         $self->pidl("if (allow_remaining_obj && PyObject_IsTrue(allow_remaining_obj)) {");
 728         $self->indent;
 729         $self->pidl("allow_remaining = true;");
 730         $self->deindent;
 731         $self->pidl("}");
 732         $self->pidl("");
 733         $self->pidl("return py_$name\_ndr_unpack(py_obj, &blob, NDR_IN, ndr_pull_flags, allow_remaining);");
 734         $self->deindent;
 735         $self->pidl("}");
 736         $self->pidl("");
 737
 738         $self->pidl("static PyObject *py_$name\_ndr_unpack_out(PyObject *py_obj, PyObject *args, PyObject *kwargs)");
 739         $self->pidl("{");
 740         $self->indent;
 741         $self->pidl("DATA_BLOB blob;");
 742         $self->pidl("Py_ssize_t blob_length = 0;");
 743         $self->pidl("const char * const kwnames[] = { \"data_blob\", \"bigendian\", \"ndr64\", \"allow_remaining\", NULL };");
 744         $self->pidl("PyObject *bigendian_obj = NULL;");
 745         $self->pidl("PyObject *ndr64_obj = NULL;");
 746         $self->pidl("uint32_t ndr_pull_flags = LIBNDR_FLAG_REF_ALLOC;");
 747         $self->pidl("PyObject *allow_remaining_obj = NULL;");
 748         $self->pidl("bool allow_remaining = false;");
 749         $self->pidl("");
 750         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"s#|OOO:__ndr_unpack_out__\",");
 751         $self->indent;
 752         $self->pidl("discard_const_p(char *, kwnames),");
 753         $self->pidl("&blob.data, &blob_length,");
 754         $self->pidl("&bigendian_obj,");
 755         $self->pidl("&ndr64_obj,");
 756         $self->pidl("&allow_remaining_obj)) {");
 757         $self->deindent;
 758         $self->indent;
 759         $self->pidl("return NULL;");
 760         $self->deindent;
 761         $self->pidl("}");
 762         $self->pidl("blob.length = blob_length;");
 763         $self->pidl("");
 764         $self->pidl("if (bigendian_obj && PyObject_IsTrue(bigendian_obj)) {");
 765         $self->indent;
 766         $self->pidl("ndr_pull_flags |= LIBNDR_FLAG_BIGENDIAN;");
 767         $self->deindent;
 768         $self->pidl("}");
 769         $self->pidl("if (ndr64_obj && PyObject_IsTrue(ndr64_obj)) {");
 770         $self->indent;
 771         $self->pidl("ndr_pull_flags |= LIBNDR_FLAG_NDR64;");
 772         $self->deindent;
 773         $self->pidl("}");
 774         $self->pidl("");
 775         $self->pidl("if (allow_remaining_obj && PyObject_IsTrue(allow_remaining_obj)) {");
 776         $self->indent;
 777         $self->pidl("allow_remaining = true;");
 778         $self->deindent;
 779         $self->pidl("}");
 780         $self->pidl("");
 781         $self->pidl("return py_$name\_ndr_unpack(py_obj, &blob, NDR_OUT, ndr_pull_flags, allow_remaining);");
 782         $self->deindent;
 783         $self->pidl("}");
 784         $self->pidl("");
 785
 786         $self->pidl("static PyObject *py_$name\_ndr_print(PyObject *py_obj, const char *name, int ndr_inout_flags)");
 787         $self->pidl("{");
 788         $self->indent;
 789         $self->pidl("$ndr_call");
 790         $self->pidl("$object_ptr");
 791         $self->pidl("PyObject *ret;");
 792         $self->pidl("char *retstr;");
 793         $self->pidl("");
 794         $self->pidl("if (ndr_table_$iface\.num_calls < $fn->{OPNUM}) {");
 795         $self->indent;
 796         $self->pidl("PyErr_SetString(PyExc_TypeError, \"Internal Error, ndr_interface_call missing for py_$name\_ndr_print\");");
 797         $self->pidl("return NULL;");
 798         $self->deindent;
 799         $self->pidl("}");
 800         $self->pidl("call = &ndr_table_$iface\.calls[$fn->{OPNUM}];");
 801         $self->pidl("");
 802         $self->pidl("retstr = ndr_print_function_string(pytalloc_get_mem_ctx(py_obj), call->ndr_print, name, ndr_inout_flags, object);");
 803         $self->pidl("ret = PyString_FromString(retstr);");
 804         $self->pidl("TALLOC_FREE(retstr);");
 805         $self->pidl("");
 806         $self->pidl("return ret;");
 807         $self->deindent;
 808         $self->pidl("}");
 809         $self->pidl("");
 810
 811         $self->pidl("static PyObject *py_$name\_ndr_print_in(PyObject *py_obj)");
 812         $self->pidl("{");
 813         $self->indent;
 814         $self->pidl("return py_$name\_ndr_print(py_obj, \"$name\_in\", NDR_IN);");
 815         $self->deindent;
 816         $self->pidl("}");
 817         $self->pidl("");
 818
 819         $self->pidl("static PyObject *py_$name\_ndr_print_out(PyObject *py_obj)");
 820         $self->pidl("{");
 821         $self->indent;
 822         $self->pidl("return py_$name\_ndr_print(py_obj, \"$name\_out\", NDR_OUT);");
 823         $self->deindent;
 824         $self->pidl("}");
 825         $self->pidl("");
 826
 827         $py_methods = "py_$name\_methods";
 828         $self->pidl("static PyMethodDef $py_methods\[] = {");
 829         $self->indent;
 830         $self->pidl("{ \"opnum\", (PyCFunction)py_$name\_ndr_opnum, METH_NOARGS|METH_CLASS,");
 831         $self->indent;
 832         $self->pidl("\"$modulename.$prettyname.opnum() -> ".sprintf("%d (0x%02x)", $fn->{OPNUM}, $fn->{OPNUM})." \" },");
 833         $self->deindent;
 834         $self->pidl("{ \"__ndr_pack_in__\", (PyCFunction)py_$name\_ndr_pack_in, METH_VARARGS|METH_KEYWORDS,");
 835         $self->indent;
 836         $self->pidl("\"S.ndr_pack_in(object, bigendian=False, ndr64=False) -> blob\\nNDR pack input\" },");
 837         $self->deindent;
 838         $self->pidl("{ \"__ndr_pack_out__\", (PyCFunction)py_$name\_ndr_pack_out, METH_VARARGS|METH_KEYWORDS,");
 839         $self->indent;
 840         $self->pidl("\"S.ndr_pack_out(object, bigendian=False, ndr64=False) -> blob\\nNDR pack output\" },");
 841         $self->deindent;
 842         $self->pidl("{ \"__ndr_unpack_in__\", (PyCFunction)py_$name\_ndr_unpack_in, METH_VARARGS|METH_KEYWORDS,");
 843         $self->indent;
 844         $self->pidl("\"S.ndr_unpack_in(class, blob, bigendian=False, ndr64=False, allow_remaining=False) -> None\\nNDR unpack input\" },");
 845         $self->deindent;
 846         $self->pidl("{ \"__ndr_unpack_out__\", (PyCFunction)py_$name\_ndr_unpack_out, METH_VARARGS|METH_KEYWORDS,");
 847         $self->indent;
 848         $self->pidl("\"S.ndr_unpack_out(class, blob, bigendian=False, ndr64=False, allow_remaining=False) -> None\\nNDR unpack output\" },");
 849         $self->deindent;
 850         $self->pidl("{ \"__ndr_print_in__\", (PyCFunction)py_$name\_ndr_print_in, METH_NOARGS, \"S.ndr_print_in(object) -> None\\nNDR print input\" },");
 851         $self->pidl("{ \"__ndr_print_out__\", (PyCFunction)py_$name\_ndr_print_out, METH_NOARGS, \"S.ndr_print_out(object) -> None\\nNDR print output\" },");
 852         $self->pidl("{ NULL, NULL, 0, NULL }");
 853         $self->deindent;
 854         $self->pidl("};");
 855         $self->pidl("");
 856
 857         $self->pidl_hdr("static PyTypeObject $name\_Type;\n");
 858         $self->pidl("");
 859         my $docstring = $self->DocString($fn, $name);
 860         my $typeobject = "$name\_Type";
 861         $self->pidl("static PyTypeObject $typeobject = {");
 862         $self->indent;
 863         $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
 864         $self->pidl(".tp_name = \"$modulename.$prettyname\",");
 865         $self->pidl(".tp_getset = $getsetters,");
 866         if ($docstring) {
 867                 $self->pidl(".tp_doc = $docstring,");
 868         }
 869         $self->pidl(".tp_methods = $py_methods,");
 870         $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 871         $self->pidl(".tp_new = py_$name\_new,");
 872         $self->deindent;
 873         $self->pidl("};");
 874
 875         $self->pidl("");
 876
 877         my $talloc_typename = $self->import_type_variable("talloc", "BaseObject");
 878         $self->register_module_prereadycode(["$name\_Type.tp_base = $talloc_typename;",
 879                                              "$name\_Type.tp_basicsize = pytalloc_BaseObject_size();",
 880                                              ""]);
 881
 882         return "&$typeobject";
 883 }
 884
 885 sub get_metadata_var($)
 886 {
 887         my ($e) = @_;
 888         sub get_var($) { my $x = shift; $x =~ s/\*//g; return $x; }
 889
 890          if (has_property($e, "length_is")) {
 891                 return get_var($e->{PROPERTIES}->{length_is});
 892          } elsif (has_property($e, "size_is")) {
 893                 return get_var($e->{PROPERTIES}->{size_is});
 894          }
 895
 896          return undef;
 897 }
 898
 899 sub find_metadata_args($)
 900 {
 901         my ($fn) = @_;
 902         my $metadata_args = { in => {}, out => {} };
 903
 904         # Determine arguments that are metadata for other arguments (size_is/length_is)
 905         foreach my $e (@{$fn->{ELEMENTS}}) {
 906                 foreach my $dir (@{$e->{DIRECTION}}) {
 907                          my $main = get_metadata_var($e);
 908                          if ($main) {
 909                                  $metadata_args->{$dir}->{$main} = $e->{NAME};
 910                          }
 911                  }
 912         }
 913
 914         return $metadata_args;
 915 }
 916
 917 sub PythonFunctionUnpackOut($$$)
 918 {
 919         my ($self, $fn, $fnname) = @_;
 920
 921         my $outfnname = "unpack_$fnname\_args_out";
 922         my $signature = "";
 923
 924         my $metadata_args = find_metadata_args($fn);
 925
 926         my $env = GenerateFunctionOutEnv($fn, "r->");
 927         my $result_size = 0;
 928
 929         $self->pidl("static PyObject *$outfnname(struct $fn->{NAME} *r)");
 930         $self->pidl("{");
 931         $self->indent;
 932         $self->pidl("PyObject *result;");
 933         foreach my $e (@{$fn->{ELEMENTS}}) {
 934                 next unless (grep(/out/,@{$e->{DIRECTION}}));
 935                 next if (($metadata_args->{in}->{$e->{NAME}} and grep(/in/, @{$e->{DIRECTION}})) or
 936                          ($metadata_args->{out}->{$e->{NAME}}) and grep(/out/, @{$e->{DIRECTION}}));
 937                 $self->pidl("PyObject *py_$e->{NAME};");
 938                 $result_size++;
 939         }
 940
 941         if ($fn->{RETURN_TYPE}) {
 942                 $result_size++ unless ($fn->{RETURN_TYPE} eq "WERROR" or $fn->{RETURN_TYPE} eq "NTSTATUS");
 943         }
 944
 945         my $i = 0;
 946
 947         if ($result_size > 1) {
 948                 $self->pidl("result = PyTuple_New($result_size);");
 949                 $signature .= "(";
 950         } elsif ($result_size == 0) {
 951                 $self->pidl("result = Py_None;");
 952                 $self->pidl("Py_INCREF(result);");
 953                 $signature .= "None";
 954         }
 955
 956         foreach my $e (@{$fn->{ELEMENTS}}) {
 957                 next if ($metadata_args->{out}->{$e->{NAME}});
 958                 my $py_name = "py_$e->{NAME}";
 959                 if (grep(/out/,@{$e->{DIRECTION}})) {
 960                         $self->ConvertObjectToPython("r", $env, $e, "r->out.$e->{NAME}", $py_name, "return NULL;");
 961                         if ($result_size > 1) {
 962                                 $self->pidl("PyTuple_SetItem(result, $i, $py_name);");
 963                                 $i++;
 964                                 $signature .= "$e->{NAME}, ";
 965                         } else {
 966                                 $self->pidl("result = $py_name;");
 967                                 $signature .= $e->{NAME};
 968                         }
 969                 }
 970         }
 971
 972         if (defined($fn->{RETURN_TYPE}) and $fn->{RETURN_TYPE} eq "NTSTATUS") {
 973                 $self->handle_ntstatus("r->out.result", "NULL", undef);
 974         } elsif (defined($fn->{RETURN_TYPE}) and $fn->{RETURN_TYPE} eq "WERROR") {
 975                 $self->handle_werror("r->out.result", "NULL", undef);
 976         } elsif (defined($fn->{RETURN_TYPE})) {
 977                 my $conv = $self->ConvertObjectToPythonData("r", $fn->{RETURN_TYPE}, "r->out.result", $fn);
 978                 if ($result_size > 1) {
 979                         $self->pidl("PyTuple_SetItem(result, $i, $conv);");
 980                 } else {
 981                         $self->pidl("result = $conv;");
 982                 }
 983                 $signature .= "result";
 984         }
 985
 986         if (substr($signature, -2) eq ", ") {
 987                 $signature = substr($signature, 0, -2);
 988         }
 989         if ($result_size > 1) {
 990                 $signature .= ")";
 991         }
 992
 993         $self->pidl("return result;");
 994         $self->deindent;
 995         $self->pidl("}");
 996         $self->pidl("");
 997
 998         return ($outfnname, $signature);
 999 }
1000
1001 sub PythonFunctionPackIn($$$)
1002 {
1003         my ($self, $fn, $fnname) = @_;
1004         my $metadata_args = find_metadata_args($fn);
1005
1006         my $infnname = "pack_$fnname\_args_in";
1007
1008         $self->pidl("static bool $infnname(PyObject *args, PyObject *kwargs, struct $fn->{NAME} *r)");
1009         $self->pidl("{");
1010         $self->indent;
1011         my $args_format = "";
1012         my $args_string = "";
1013         my $args_names = "";
1014         my $signature = "";
1015
1016         foreach my $e (@{$fn->{ELEMENTS}}) {
1017                 next unless (grep(/in/,@{$e->{DIRECTION}}));
1018                 next if (($metadata_args->{in}->{$e->{NAME}} and grep(/in/, @{$e->{DIRECTION}})) or
1019                                  ($metadata_args->{out}->{$e->{NAME}}) and grep(/out/, @{$e->{DIRECTION}}));
1020                 $self->pidl("PyObject *py_$e->{NAME};");
1021                 $args_format .= "O";
1022                 $args_string .= ", &py_$e->{NAME}";
1023                 $args_names .= "\"$e->{NAME}\", ";
1024                 $signature .= "$e->{NAME}, ";
1025         }
1026         if (substr($signature, -2) eq ", ") {
1027                 $signature = substr($signature, 0, -2);
1028         }
1029         $self->pidl("const char *kwnames[] = {");
1030         $self->indent;
1031         $self->pidl($args_names . "NULL");
1032         $self->deindent;
1033         $self->pidl("};");
1034
1035         $self->pidl("");
1036         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"$args_format:$fn->{NAME}\", discard_const_p(char *, kwnames)$args_string)) {");
1037         $self->indent;
1038         $self->pidl("return false;");
1039         $self->deindent;
1040         $self->pidl("}");
1041         $self->pidl("");
1042
1043         my $env = GenerateFunctionInEnv($fn, "r->");
1044
1045         my $fail = "return false;";
1046         foreach my $e (@{$fn->{ELEMENTS}}) {
1047                 next unless (grep(/in/,@{$e->{DIRECTION}}));
1048                 if ($metadata_args->{in}->{$e->{NAME}}) {
1049                         my $py_var = "py_".$metadata_args->{in}->{$e->{NAME}};
1050                         $self->pidl("PY_CHECK_TYPE(&PyList_Type, $py_var, $fail);");
1051                         my $val = "PyList_GET_SIZE($py_var)";
1052                         if ($e->{LEVELS}[0]->{TYPE} eq "POINTER") {
1053                                 $self->pidl("r->in.$e->{NAME} = talloc_ptrtype(r, r->in.$e->{NAME});");
1054                                 $self->pidl("if (r->in.$e->{NAME} == NULL) {");
1055                                 $self->indent;
1056                                 $self->pidl("PyErr_NoMemory();");
1057                                 $self->pidl($fail);
1058                                 $self->deindent;
1059                                 $self->pidl("}");
1060                                 $self->pidl("*r->in.$e->{NAME} = $val;");
1061                         } else {
1062                                 $self->pidl("r->in.$e->{NAME} = $val;");
1063                         }
1064                 } else {
1065                         $self->ConvertObjectFromPython($env, "r", $e, "py_$e->{NAME}", "r->in.$e->{NAME}", $fail);
1066                 }
1067         }
1068         $self->pidl("return true;");
1069         $self->deindent;
1070         $self->pidl("}");
1071         $self->pidl("");
1072         return ($infnname, $signature);
1073 }
1074
1075 sub PythonFunction($$$)
1076 {
1077         my ($self, $fn, $iface, $prettyname) = @_;
1078
1079         my $fnname = "py_$fn->{NAME}";
1080         my $docstring = $self->DocString($fn, $fn->{NAME});
1081
1082         my ($infn, $insignature) = $self->PythonFunctionPackIn($fn, $fnname);
1083         my ($outfn, $outsignature) = $self->PythonFunctionUnpackOut($fn, $fnname);
1084         my $signature = "S.$prettyname($insignature) -> $outsignature";
1085         if ($docstring) {
1086                 $docstring = "\"$signature\\n\\n\"$docstring";
1087         } else {
1088                 $docstring = "\"$signature\"";
1089         }
1090
1091         return ($infn, $outfn, $docstring);
1092 }
1093
1094 sub handle_werror($$$$)
1095 {
1096         my ($self, $var, $retval, $mem_ctx) = @_;
1097
1098         $self->pidl("if (!W_ERROR_IS_OK($var)) {");
1099         $self->indent;
1100         $self->pidl("PyErr_SetWERROR($var);");
1101         $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
1102         $self->pidl("return $retval;");
1103         $self->deindent;
1104         $self->pidl("}");
1105         $self->pidl("");
1106 }
1107
1108 sub handle_ntstatus($$$$)
1109 {
1110         my ($self, $var, $retval, $mem_ctx) = @_;
1111
1112         $self->pidl("if (NT_STATUS_IS_ERR($var)) {");
1113         $self->indent;
1114         $self->pidl("PyErr_SetNTSTATUS($var);");
1115         $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
1116         $self->pidl("return $retval;");
1117         $self->deindent;
1118         $self->pidl("}");
1119         $self->pidl("");
1120 }
1121
1122 sub PythonType($$$$)
1123 {
1124         my ($self, $modulename, $d, $interface, $basename) = @_;
1125
1126         my $actual_ctype = $d;
1127         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
1128                 $actual_ctype = $actual_ctype->{DATA};
1129         }
1130
1131         if ($actual_ctype->{TYPE} eq "STRUCT") {
1132                 my $typeobject;
1133                 my $fn_name = PrettifyTypeName($d->{NAME}, $basename);
1134
1135                 if ($d->{TYPE} eq "STRUCT") {
1136                         $typeobject = $self->PythonStruct($modulename, $fn_name, $d->{NAME}, mapTypeName($d), $d);
1137                 } else {
1138                         $typeobject = $self->PythonStruct($modulename, $fn_name, $d->{NAME}, mapTypeName($d), $d->{DATA});
1139                 }
1140
1141                 $self->register_module_typeobject($fn_name, $typeobject, $d->{ORIGINAL});
1142         }
1143
1144         if ($d->{TYPE} eq "ENUM" or $d->{TYPE} eq "BITMAP") {
1145                 $self->EnumAndBitmapConsts($d->{NAME}, $d);
1146         }
1147
1148         if ($d->{TYPE} eq "TYPEDEF" and ($d->{DATA}->{TYPE} eq "ENUM" or $d->{DATA}->{TYPE} eq "BITMAP")) {
1149                 $self->EnumAndBitmapConsts($d->{NAME}, $d->{DATA});
1150         }
1151
1152         if ($actual_ctype->{TYPE} eq "UNION" and defined($actual_ctype->{ELEMENTS})) {
1153                 my $prettyname = PrettifyTypeName($d->{NAME}, $basename);
1154                 my $typeobject = "$d->{NAME}\_Type";
1155                 my $docstring = $self->DocString($d, $d->{NAME});
1156                 my $cname = "union $d->{NAME}";
1157
1158                 $self->pidl("static PyObject *py_import_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, " .mapTypeName($d) . " *in)");
1159                 $self->pidl("{");
1160                 $self->indent;
1161                 $self->FromUnionToPythonFunction("mem_ctx", $actual_ctype, "level", "in") if ($actual_ctype->{TYPE} eq "UNION");
1162                 $self->deindent;
1163                 $self->pidl("}");
1164                 $self->pidl("");
1165
1166                 $self->pidl("static ".mapTypeName($d) . " *py_export_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, PyObject *in)");
1167                 $self->pidl("{");
1168                 $self->indent;
1169                 $self->FromPythonToUnionFunction($actual_ctype, mapTypeName($d), "level", "mem_ctx", "in") if ($actual_ctype->{TYPE} eq "UNION");
1170                 $self->deindent;
1171                 $self->pidl("}");
1172                 $self->pidl("");
1173
1174                 my $getsetters = "NULL";
1175                 my $py_methods = "NULL";
1176                 my $typename = mapTypeName($d);
1177
1178                 ##
1179                 ## PyCapsule (starting with 2.7) vs. PyCObject (up to 3.2)
1180                 ##
1181                 ## As we need to support python 2.6, we can't use PyCapsule yet.
1182                 ##
1183                 ## When we'll get support fpr Python3 we'll have to emulate
1184                 ## PyCObject using PyCapsule and convert these functions to
1185                 ## use PyCapsule.
1186                 ##
1187                 $self->pidl("static PyObject *py_$d->{NAME}\_import(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
1188                 $self->pidl("{");
1189                 $self->indent;
1190                 $self->pidl("const char * const kwnames[] = { \"mem_ctx\", \"level\", \"in\", NULL };");
1191                 $self->pidl("PyObject *mem_ctx_obj = NULL;");
1192                 $self->pidl("static const char *mem_ctx_type = \"TALLOC_CTX\";");
1193                 $self->pidl("const char *mem_ctx_desc = NULL;");
1194                 $self->pidl("TALLOC_CTX *mem_ctx = NULL;");
1195                 $self->pidl("int level = 0;");
1196                 $self->pidl("PyObject *in_obj = NULL;");
1197                 $self->pidl("static const char *in_type = \"$typename\";");
1198                 $self->pidl("const char *in_desc = NULL;");
1199                 $self->pidl("$typename *in = NULL;");
1200                 $self->pidl("int cmp;");
1201                 $self->pidl("");
1202                 $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"OiO:import\",");
1203                 $self->indent;
1204                 $self->pidl("discard_const_p(char *, kwnames),");
1205                 $self->pidl("&mem_ctx_obj,");
1206                 $self->pidl("&level,");
1207                 $self->pidl("&in_obj)) {");
1208                 $self->deindent;
1209                 $self->indent;
1210                 $self->pidl("return NULL;");
1211                 $self->deindent;
1212                 $self->pidl("}");
1213                 $self->pidl("if (!PyCObject_Check(mem_ctx_obj)) {");
1214                 $self->indent;
1215                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"mem_ctx needs to be of type PyCObject!\");");
1216                 $self->pidl("return NULL;");
1217                 $self->deindent;
1218                 $self->pidl("}");
1219                 $self->pidl("mem_ctx_desc = (const char *)PyCObject_GetDesc(mem_ctx_obj);");
1220                 $self->indent;
1221                 $self->pidl("if (mem_ctx_desc == NULL) {");
1222                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"mem_ctx hash no PyCObject_GetDesc()!\");");
1223                 $self->pidl("return NULL;");
1224                 $self->deindent;
1225                 $self->pidl("}");
1226                 $self->pidl("cmp = strncmp(mem_ctx_type, mem_ctx_desc, strlen(mem_ctx_type) + 1);");
1227                 $self->pidl("if (cmp != 0) {");
1228                 $self->indent;
1229                 $self->pidl("PyErr_Format(PyExc_TypeError, \"mem_ctx should have PyCObject_GetDesc() = %s!\", mem_ctx_type);");
1230                 $self->pidl("return NULL;");
1231                 $self->deindent;
1232                 $self->pidl("}");
1233                 $self->pidl("mem_ctx = PyCObject_AsVoidPtr(mem_ctx_obj);");
1234                 $self->pidl("if (mem_ctx == NULL) {");
1235                 $self->indent;
1236                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"mem_ctx is NULL)!\");");
1237                 $self->pidl("return NULL;");
1238                 $self->deindent;
1239                 $self->pidl("}");
1240                 $self->pidl("if (!PyCObject_Check(in_obj)) {");
1241                 $self->indent;
1242                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"in needs to be of type PyCObject!\");");
1243                 $self->pidl("return NULL;");
1244                 $self->deindent;
1245                 $self->pidl("}");
1246                 $self->pidl("in_desc = (const char *)PyCObject_GetDesc(in_obj);");
1247                 $self->indent;
1248                 $self->pidl("if (in_desc == NULL) {");
1249                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"in hash no PyCObject_GetDesc()!\");");
1250                 $self->pidl("return NULL;");
1251                 $self->deindent;
1252                 $self->pidl("}");
1253                 $self->pidl("cmp = strncmp(in_type, in_desc, strlen(in_type) + 1);");
1254                 $self->pidl("if (cmp != 0) {");
1255                 $self->indent;
1256                 $self->pidl("PyErr_Format(PyExc_TypeError, \"in should have PyCObject_GetDesc() = %s!\", in_type);");
1257                 $self->pidl("return NULL;");
1258                 $self->deindent;
1259                 $self->pidl("}");
1260                 $self->pidl("in = ($typename *)PyCObject_AsVoidPtr(in_obj);");
1261                 $self->pidl("");
1262                 $self->pidl("return py_import_$d->{NAME}(mem_ctx, level, in);");
1263                 $self->deindent;
1264                 $self->pidl("}");
1265                 $self->pidl("");
1266
1267                 $self->pidl("static PyObject *py_$d->{NAME}\_export(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
1268                 $self->pidl("{");
1269                 $self->indent;
1270                 $self->pidl("const char * const kwnames[] = { \"mem_ctx\", \"level\", \"in\", NULL };");
1271                 $self->pidl("PyObject *mem_ctx_obj = NULL;");
1272                 $self->pidl("static const char *mem_ctx_type = \"TALLOC_CTX\";");
1273                 $self->pidl("const char *mem_ctx_desc = NULL;");
1274                 $self->pidl("TALLOC_CTX *mem_ctx = NULL;");
1275                 $self->pidl("int level = 0;");
1276                 $self->pidl("PyObject *in = NULL;");
1277                 $self->pidl("static const char *out_type = \"$typename\";");
1278                 $self->pidl("$typename *out = NULL;");
1279                 $self->pidl("int cmp;");
1280                 $self->pidl("");
1281                 $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"OiO:import\",");
1282                 $self->indent;
1283                 $self->pidl("discard_const_p(char *, kwnames),");
1284                 $self->pidl("&mem_ctx_obj,");
1285                 $self->pidl("&level,");
1286                 $self->pidl("&in)) {");
1287                 $self->deindent;
1288                 $self->indent;
1289                 $self->pidl("return NULL;");
1290                 $self->deindent;
1291                 $self->pidl("}");
1292                 $self->pidl("if (!PyCObject_Check(mem_ctx_obj)) {");
1293                 $self->indent;
1294                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"mem_ctx needs to be of type PyCObject!\");");
1295                 $self->pidl("return NULL;");
1296                 $self->deindent;
1297                 $self->pidl("}");
1298                 $self->pidl("mem_ctx_desc = (const char *)PyCObject_GetDesc(mem_ctx_obj);");
1299                 $self->indent;
1300                 $self->pidl("if (mem_ctx_desc == NULL) {");
1301                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"mem_ctx hash no PyCObject_GetDesc()!\");");
1302                 $self->pidl("return NULL;");
1303                 $self->deindent;
1304                 $self->pidl("}");
1305                 $self->pidl("cmp = strncmp(mem_ctx_type, mem_ctx_desc, strlen(mem_ctx_type) + 1);");
1306                 $self->pidl("if (cmp != 0) {");
1307                 $self->indent;
1308                 $self->pidl("PyErr_Format(PyExc_TypeError, \"mem_ctx should have PyCObject_GetDesc() = %s!\", mem_ctx_type);");
1309                 $self->pidl("return NULL;");
1310                 $self->deindent;
1311                 $self->pidl("}");
1312                 $self->pidl("mem_ctx = PyCObject_AsVoidPtr(mem_ctx_obj);");
1313                 $self->pidl("if (mem_ctx == NULL) {");
1314                 $self->indent;
1315                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"mem_ctx is NULL)!\");");
1316                 $self->pidl("return NULL;");
1317                 $self->deindent;
1318                 $self->pidl("}");
1319                 $self->pidl("");
1320                 $self->pidl("out = py_export_$d->{NAME}(mem_ctx, level, in);");
1321                 $self->pidl("if (out == NULL) {");
1322                 $self->indent;
1323                 $self->pidl("return NULL;");
1324                 $self->deindent;
1325                 $self->pidl("}");
1326                 $self->pidl("return PyCObject_FromVoidPtrAndDesc(out, discard_const_p(char, out_type), NULL);");
1327                 $self->deindent;
1328                 $self->pidl("}");
1329                 $self->pidl("");
1330
1331                 $py_methods = "py_$d->{NAME}_methods";
1332                 $self->pidl("static PyMethodDef $py_methods\[] = {");
1333                 $self->indent;
1334                 $self->pidl("{ \"__import__\", (PyCFunction)py_$d->{NAME}\_import,");
1335                 $self->indent;
1336                 $self->pidl("METH_VARARGS|METH_KEYWORDS|METH_CLASS,");
1337                 $self->pidl("\"T.__import__(mem_ctx, level, in) => ret.\" },");
1338                 $self->deindent;
1339                 $self->pidl("{ \"__export__\", (PyCFunction)py_$d->{NAME}\_export,");
1340                 $self->indent;
1341                 $self->pidl("METH_VARARGS|METH_KEYWORDS|METH_CLASS,");
1342                 $self->pidl("\"T.__export__(mem_ctx, level, in) => ret.\" },");
1343                 $self->deindent;
1344                 $self->pidl("{ NULL, NULL, 0, NULL }");
1345                 $self->deindent;
1346                 $self->pidl("};");
1347                 $self->pidl("");
1348
1349                 $self->pidl("static PyObject *py_$d->{NAME}\_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
1350                 $self->pidl("{");
1351                 $self->indent;
1352                 $self->pidl("PyErr_Format(PyExc_TypeError, \"New %s Objects are not supported\", type->tp_name);");
1353                 $self->pidl("return NULL;");
1354                 $self->deindent;
1355                 $self->pidl("}");
1356                 $self->pidl("");
1357
1358                 $self->pidl("");
1359                 $self->pidl_hdr("static PyTypeObject $typeobject;\n");
1360                 $self->pidl("static PyTypeObject $typeobject = {");
1361                 $self->indent;
1362                 $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
1363                 $self->pidl(".tp_name = \"$modulename.$prettyname\",");
1364                 $self->pidl(".tp_getset = $getsetters,");
1365                 if ($docstring) {
1366                         $self->pidl(".tp_doc = $docstring,");
1367                 }
1368                 $self->pidl(".tp_methods = $py_methods,");
1369                 $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
1370                 $self->pidl(".tp_new = py_$d->{NAME}\_new,");
1371                 $self->deindent;
1372                 $self->pidl("};");
1373
1374                 $self->pidl("");
1375
1376                 my $talloc_typename = $self->import_type_variable("talloc", "BaseObject");
1377                 $self->register_module_prereadycode(["$typeobject.tp_base = $talloc_typename;",
1378                                                      "$typeobject.tp_basicsize = pytalloc_BaseObject_size();",
1379                                                      ""]);
1380
1381                 $self->register_module_typeobject($prettyname, "&$typeobject", $d->{ORIGINAL});
1382         }
1383 }
1384
1385 sub DocString($$$)
1386 {
1387         my ($self, $d, $name) = @_;
1388         if (has_property($d, "helpstring")) {
1389                 my $docstring = uc("py_doc_$name");
1390                 $self->pidl("#define $docstring ".has_property($d, "helpstring"));
1391                 return $docstring;
1392         }
1393
1394         return undef;
1395 }
1396
1397 sub Interface($$$)
1398 {
1399         my($self,$interface,$basename) = @_;
1400
1401         if (has_property($interface, "pyhelper")) {
1402                 $self->pidl("#include \"".unmake_str($interface->{PROPERTIES}->{pyhelper})."\"\n");
1403         }
1404
1405         $self->Const($_) foreach (@{$interface->{CONSTS}});
1406
1407         foreach my $d (@{$interface->{TYPES}}) {
1408                 next if has_property($d, "nopython");
1409
1410                 $self->PythonType($basename, $d, $interface, $basename);
1411         }
1412
1413         if (defined $interface->{PROPERTIES}->{uuid}) {
1414                 $self->pidl_hdr("static PyTypeObject $interface->{NAME}_InterfaceType;\n");
1415                 $self->pidl("");
1416
1417                 my @fns = ();
1418
1419                 foreach my $d (@{$interface->{FUNCTIONS}}) {
1420                         next if has_property($d, "noopnum");
1421                         next if has_property($d, "nopython");
1422                         next if has_property($d, "todo");
1423
1424                         my $skip = 0;
1425                         foreach my $e (@{$d->{ELEMENTS}}) {
1426                                 if (ContainsPipe($e, $e->{LEVELS}[0])) {
1427                                         $skip = 1;
1428                                         last;
1429                                 }
1430                         }
1431                         next if $skip;
1432
1433                         my $prettyname = $d->{NAME};
1434
1435                         $prettyname =~ s/^$interface->{NAME}_//;
1436                         $prettyname =~ s/^$basename\_//;
1437
1438                         my $typeobject = $self->PythonFunctionStruct($basename, $d, $interface->{NAME}, $prettyname);
1439                         $self->register_module_typeobject($prettyname, $typeobject, $d->{ORIGINAL});
1440
1441                         my ($infn, $outfn, $fndocstring) = $self->PythonFunction($d, $interface->{NAME}, $prettyname);
1442
1443                         push (@fns, [$infn, $outfn, "dcerpc_$d->{NAME}_r", $prettyname, $fndocstring, $d->{OPNUM}]);
1444                 }
1445
1446                 $self->pidl("const struct PyNdrRpcMethodDef py_ndr_$interface->{NAME}\_methods[] = {");
1447                 $self->indent;
1448                 foreach my $d (@fns) {
1449                         my ($infn, $outfn, $callfn, $prettyname, $docstring, $opnum) = @$d;
1450                         $self->pidl("{ \"$prettyname\", $docstring, (py_dcerpc_call_fn)$callfn, (py_data_pack_fn)$infn, (py_data_unpack_fn)$outfn, $opnum, &ndr_table_$interface->{NAME} },");
1451                 }
1452                 $self->pidl("{ NULL }");
1453                 $self->deindent;
1454                 $self->pidl("};");
1455                 $self->pidl("");
1456
1457                 $self->pidl("static PyObject *interface_$interface->{NAME}_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
1458                 $self->pidl("{");
1459                 $self->indent;
1460                 $self->pidl("return py_dcerpc_interface_init_helper(type, args, kwargs, &ndr_table_$interface->{NAME});");
1461                 $self->deindent;
1462                 $self->pidl("}");
1463
1464                 $self->pidl("");
1465
1466                 my $signature =
1467 "\"$interface->{NAME}(binding, lp_ctx=None, credentials=None) -> connection\\n\"
1468 \"\\n\"
1469 \"binding should be a DCE/RPC binding string (for example: ncacn_ip_tcp:127.0.0.1)\\n\"
1470 \"lp_ctx should be a path to a smb.conf file or a param.LoadParm object\\n\"
1471 \"credentials should be a credentials.Credentials object.\\n\\n\"";
1472
1473                 my $docstring = $self->DocString($interface, $interface->{NAME});
1474
1475                 if ($docstring) {
1476                         $docstring = "$signature$docstring";
1477                 } else {
1478                         $docstring = $signature;
1479                 }
1480
1481                 my $if_typename = "$interface->{NAME}_InterfaceType";
1482
1483                 $self->pidl("static PyTypeObject $if_typename = {");
1484                 $self->indent;
1485                 $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
1486                 $self->pidl(".tp_name = \"$basename.$interface->{NAME}\",");
1487                 $self->pidl(".tp_basicsize = sizeof(dcerpc_InterfaceObject),");
1488                 $self->pidl(".tp_doc = $docstring,");
1489                 $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
1490                 $self->pidl(".tp_new = interface_$interface->{NAME}_new,");
1491                 $self->deindent;
1492                 $self->pidl("};");
1493
1494                 $self->pidl("");
1495
1496                 $self->register_module_typeobject($interface->{NAME}, "&$if_typename", $interface->{ORIGINAL});
1497                 my $dcerpc_typename = $self->import_type_variable("samba.dcerpc.base", "ClientConnection");
1498                 $self->register_module_prereadycode(["$if_typename.tp_base = $dcerpc_typename;", ""]);
1499                 $self->register_module_postreadycode(["if (!PyInterface_AddNdrRpcMethods(&$if_typename, py_ndr_$interface->{NAME}\_methods))", "\treturn;", ""]);
1500
1501
1502                 $self->pidl("static PyObject *syntax_$interface->{NAME}_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
1503                 $self->pidl("{");
1504                 $self->indent;
1505                 $self->pidl("return py_dcerpc_syntax_init_helper(type, args, kwargs, &ndr_table_$interface->{NAME}.syntax_id);");
1506                 $self->deindent;
1507                 $self->pidl("}");
1508
1509                 $self->pidl("");
1510
1511                 my $signature = "\"$interface->{NAME}_abstract_syntax()\\n\"";
1512
1513                 my $docstring = $self->DocString($interface, $interface->{NAME}."_syntax");
1514
1515                 if ($docstring) {
1516                         $docstring = "$signature$docstring";
1517                 } else {
1518                         $docstring = $signature;
1519                 }
1520
1521                 my $syntax_typename = "$interface->{NAME}_SyntaxType";
1522
1523                 $self->pidl("static PyTypeObject $syntax_typename = {");
1524                 $self->indent;
1525                 $self->pidl("PyObject_HEAD_INIT(NULL) 0,");
1526                 $self->pidl(".tp_name = \"$basename.$interface->{NAME}_abstract_syntax\",");
1527                 $self->pidl(".tp_doc = $docstring,");
1528                 $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
1529                 $self->pidl(".tp_new = syntax_$interface->{NAME}_new,");
1530                 $self->deindent;
1531                 $self->pidl("};");
1532
1533                 $self->pidl("");
1534
1535                 $self->register_module_typeobject("$interface->{NAME}_abstract_syntax", "&$syntax_typename", $interface->{ORIGINAL});
1536                 if (not defined($self->existing_module_object("abstract_syntax"))) {
1537                         # Only the first syntax gets registered with the legacy
1538                         # "abstract_syntax" name
1539                         $self->register_module_typeobject("abstract_syntax", "&$syntax_typename", $interface->{ORIGINAL});
1540                 }
1541                 my $ndr_typename = $self->import_type_variable("samba.dcerpc.misc", "ndr_syntax_id");
1542                 $self->register_module_prereadycode(["$syntax_typename.tp_base = $ndr_typename;",
1543                                                      "$syntax_typename.tp_basicsize = pytalloc_BaseObject_size();",
1544                                                      ""]);
1545         }
1546
1547         $self->pidl_hdr("\n");
1548 }
1549
1550 sub register_module_method($$$$$)
1551 {
1552         my ($self, $fn_name, $pyfn_name, $flags, $doc) = @_;
1553
1554         push (@{$self->{module_methods}}, [$fn_name, $pyfn_name, $flags, $doc])
1555 }
1556
1557 sub register_module_typeobject($$$$)
1558 {
1559         my ($self, $name, $py_name, $location) = @_;
1560
1561         $self->register_module_object($name, "(PyObject *)(void *)$py_name", $location);
1562
1563         $self->check_ready_type($py_name);
1564
1565         $self->register_patch_type_call($name, $py_name);
1566 }
1567
1568 sub check_ready_type($$)
1569 {
1570         my ($self, $py_name) = @_;
1571         push (@{$self->{ready_types}}, $py_name) unless (grep(/^$py_name$/,@{$self->{ready_types}}));
1572 }
1573
1574 sub register_module_import($$)
1575 {
1576         my ($self, $module_path) = @_;
1577
1578         my $var_name = $module_path;
1579         $var_name =~ s/\./_/g;
1580         $var_name = "dep_$var_name";
1581
1582         unless (defined $self->{module_imports_uniq}->{$var_name}) {
1583                 my $h = { "key" => $var_name, "val" => $module_path};
1584                 push @{$self->{module_imports}}, $h;
1585                 $self->{module_imports_uniq}->{$var_name} = $h;
1586         }
1587         return $var_name;
1588 }
1589
1590 sub import_type_variable($$$)
1591 {
1592         my ($self, $module, $name) = @_;
1593
1594         $self->register_module_import($module);
1595         unless (defined $self->{type_imports_uniq}->{$name}) {
1596                 my $h = { "key" => $name, "val" => $module};
1597                 push @{$self->{type_imports}}, $h;
1598                 $self->{type_imports_uniq}->{$name} = $h;
1599         }
1600         return "$name\_Type";
1601 }
1602
1603 sub use_type_variable($$)
1604 {
1605         my ($self, $orig_ctype) = @_;
1606         # FIXME: Have a global lookup table for types that look different on the
1607         # wire than they are named in C?
1608         if ($orig_ctype->{NAME} eq "dom_sid2" or
1609             $orig_ctype->{NAME} eq "dom_sid28" or
1610             $orig_ctype->{NAME} eq "dom_sid0") {
1611                 $orig_ctype->{NAME} = "dom_sid";
1612         }
1613         if ($orig_ctype->{NAME} eq "spoolss_security_descriptor") {
1614                 $orig_ctype->{NAME} = "security_descriptor";
1615         }
1616
1617         my $ctype = resolveType($orig_ctype);
1618         unless (defined($ctype->{BASEFILE})) {
1619                 return undef;
1620         }
1621         # If this is an external type, make sure we do the right imports.
1622         if (($ctype->{BASEFILE} ne $self->{BASENAME})) {
1623                 return $self->import_type_variable("samba.dcerpc.$ctype->{BASEFILE}", $ctype->{NAME});
1624         }
1625         return "&$ctype->{NAME}_Type";
1626 }
1627
1628 sub register_patch_type_call($$$)
1629 {
1630         my ($self, $typename, $cvar) = @_;
1631
1632         push(@{$self->{patch_type_calls}}, [$typename, $cvar]);
1633
1634 }
1635
1636 sub register_module_prereadycode($$)
1637 {
1638         my ($self, $code) = @_;
1639
1640         push (@{$self->{prereadycode}}, @$code);
1641 }
1642
1643 sub register_module_postreadycode($$)
1644 {
1645         my ($self, $code) = @_;
1646
1647         push (@{$self->{postreadycode}}, @$code);
1648 }
1649
1650 sub existing_module_object($$)
1651 {
1652         my ($self, $name) = @_;
1653
1654         if (defined($self->{module_object_uniq}->{$name})) {
1655                 return $self->{module_object_uniq}->{$name};
1656         }
1657
1658         return undef;
1659 }
1660
1661 sub register_module_object($$$$)
1662 {
1663         my ($self, $name, $py_name, $location) = @_;
1664
1665         my $existing = $self->existing_module_object($name);
1666         fatal($location, "module_object($name, $py_name) registered twice! $existing.") if defined($existing);
1667
1668         push (@{$self->{module_objects}}, [$name, $py_name]);
1669         $self->{module_object_uniq}->{$name} = $py_name;
1670 }
1671
1672 sub assign($$$)
1673 {
1674         my ($self, $dest, $src) = @_;
1675         if ($dest =~ /^\&/ and $src eq "NULL") {
1676                 $self->pidl("memset($dest, 0, sizeof(" . get_value_of($dest) . "));");
1677         } elsif ($dest =~ /^\&/) {
1678                 my $destvar = get_value_of($dest);
1679                 $self->pidl("$destvar = *$src;");
1680         } else {
1681                 $self->pidl("$dest = $src;");
1682         }
1683 }
1684
1685 sub ConvertStringFromPythonData($$$$$)
1686 {
1687         my ($self, $mem_ctx, $py_var, $target, $fail) = @_;
1688
1689         $self->pidl("{");
1690         $self->indent;
1691         $self->pidl("const char *test_str;");
1692         $self->pidl("const char *talloc_str;");
1693         $self->pidl("PyObject *unicode = NULL;");
1694         $self->pidl("if (PyUnicode_Check($py_var)) {");
1695         $self->indent;
1696         # FIXME: Use Unix charset setting rather than utf-8
1697         $self->pidl("unicode = PyUnicode_AsEncodedString($py_var, \"utf-8\", \"ignore\");");
1698         $self->pidl("if (unicode == NULL) {");
1699         $self->indent;
1700         $self->pidl("PyErr_NoMemory();");
1701         $self->pidl("$fail");
1702         $self->deindent;
1703         $self->pidl("}");
1704
1705         $self->pidl("test_str = PyString_AS_STRING(unicode);");
1706         $self->deindent;
1707         $self->pidl("} else if (PyString_Check($py_var)) {");
1708         $self->indent;
1709         $self->pidl("test_str = PyString_AS_STRING($py_var);");
1710         $self->deindent;
1711         $self->pidl("} else {");
1712         $self->indent;
1713         $self->pidl("PyErr_Format(PyExc_TypeError, \"Expected string or unicode object, got %s\", Py_TYPE($py_var)->tp_name);");
1714         $self->pidl("$fail");
1715         $self->deindent;
1716         $self->pidl("}");
1717         $self->pidl("talloc_str = talloc_strdup($mem_ctx, test_str);");
1718         $self->pidl("if (unicode != NULL) {");
1719         $self->indent;
1720         $self->pidl("Py_DECREF(unicode);");
1721         $self->deindent;
1722         $self->pidl("}");
1723         $self->pidl("if (talloc_str == NULL) {");
1724         $self->indent;
1725         $self->pidl("PyErr_NoMemory();");
1726         $self->pidl("$fail");
1727         $self->deindent;
1728         $self->pidl("}");
1729         $self->pidl("$target = talloc_str;");
1730         $self->deindent;
1731         $self->pidl("}");
1732 }
1733
1734 sub ConvertObjectFromPythonData($$$$$$;$$)
1735 {
1736         my ($self, $mem_ctx, $cvar, $ctype, $target, $fail, $location, $switch) = @_;
1737
1738         fatal($location, "undef type for $cvar") unless(defined($ctype));
1739
1740         $ctype = resolveType($ctype);
1741
1742         my $actual_ctype = $ctype;
1743         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
1744                 $actual_ctype = $actual_ctype->{DATA};
1745         }
1746
1747         # We need to cover ENUMs, BITMAPS and SCALAR values here, as
1748         # all could otherwise be assigned invalid integer values
1749         my $ctype_alias = "";
1750         my $uint_max = "";
1751         if ($actual_ctype->{TYPE} eq "ENUM") {
1752                 # Importantly, ENUM values are unsigned in pidl, and
1753                 # typically map to uint32
1754                 $ctype_alias = enum_type_fn($actual_ctype);
1755         } elsif ($actual_ctype->{TYPE} eq "BITMAP") {
1756                 $ctype_alias = bitmap_type_fn($actual_ctype);
1757         } elsif ($actual_ctype->{TYPE} eq "SCALAR") {
1758                 $ctype_alias = expandAlias($actual_ctype->{NAME});
1759         }
1760
1761         # This is the unsigned Python Integer -> C integer validation
1762         # case.  The signed case is below.
1763         if ($ctype_alias  =~ /^(uint[0-9]*|hyper|udlong|udlongr
1764                                 |NTTIME_hyper|NTTIME|NTTIME_1sec
1765                                 |uid_t|gid_t)$/x) {
1766                 $self->pidl("{");
1767                 $self->indent;
1768                 $self->pidl("const unsigned long long uint_max = ndr_sizeof2uintmax(sizeof($target));");
1769                 $self->pidl("if (PyLong_Check($cvar)) {");
1770                 $self->indent;
1771                 $self->pidl("unsigned long long test_var;");
1772                 $self->pidl("test_var = PyLong_AsUnsignedLongLong($cvar);");
1773                 $self->pidl("if (PyErr_Occurred() != NULL) {");
1774                 $self->indent;
1775                 $self->pidl($fail);
1776                 $self->deindent;
1777                 $self->pidl("}");
1778                 $self->pidl("if (test_var > uint_max) {");
1779                 $self->indent;
1780                 $self->pidl("PyErr_Format(PyExc_OverflowError, \"Expected type %s or %s within range 0 - %llu, got %llu\",\\");
1781                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name, uint_max, test_var);");
1782                 $self->pidl($fail);
1783                 $self->deindent;
1784                 $self->pidl("}");
1785                 $self->pidl("$target = test_var;");
1786                 $self->deindent;
1787                 $self->pidl("} else if (PyInt_Check($cvar)) {");
1788                 $self->indent;
1789                 $self->pidl("long test_var;");
1790                 $self->pidl("test_var = PyInt_AsLong($cvar);");
1791                 $self->pidl("if (test_var < 0 || test_var > uint_max) {");
1792                 $self->indent;
1793                 $self->pidl("PyErr_Format(PyExc_OverflowError, \"Expected type %s or %s within range 0 - %llu, got %ld\",\\");
1794                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name, uint_max, test_var);");
1795                 $self->pidl($fail);
1796                 $self->deindent;
1797                 $self->pidl("}");
1798                 $self->pidl("$target = test_var;");
1799                 $self->deindent;
1800                 $self->pidl("} else {");
1801                 $self->indent;
1802                 $self->pidl("PyErr_Format(PyExc_TypeError, \"Expected type %s or %s\",\\");
1803                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name);");
1804                 $self->pidl($fail);
1805                 $self->deindent;
1806                 $self->pidl("}");
1807                 $self->deindent;
1808                 $self->pidl("}");
1809                 return;
1810         }
1811
1812         # Confirm the signed python integer fits in the C type
1813         # correctly.  It is subtly different from the unsigned case
1814         # above, so while it looks like a duplicate, it is not
1815         # actually a duplicate.
1816         if ($ctype_alias  =~ /^(dlong|char|int[0-9]*|time_t)$/x) {
1817                 $self->pidl("{");
1818                 $self->indent;
1819                 $self->pidl("const long long int_max = ndr_sizeof2intmax(sizeof($target));");
1820                 $self->pidl("const long long int_min = -int_max - 1;");
1821                 $self->pidl("if (PyLong_Check($cvar)) {");
1822                 $self->indent;
1823                 $self->pidl("long long test_var;");
1824                 $self->pidl("test_var = PyLong_AsLongLong($cvar);");
1825                 $self->pidl("if (PyErr_Occurred() != NULL) {");
1826                 $self->indent;
1827                 $self->pidl($fail);
1828                 $self->deindent;
1829                 $self->pidl("}");
1830                 $self->pidl("if (test_var < int_min || test_var > int_max) {");
1831                 $self->indent;
1832                 $self->pidl("PyErr_Format(PyExc_OverflowError, \"Expected type %s or %s within range %lld - %lld, got %lld\",\\");
1833                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name, int_min, int_max, test_var);");
1834                 $self->pidl($fail);
1835                 $self->deindent;
1836                 $self->pidl("}");
1837                 $self->pidl("$target = test_var;");
1838                 $self->deindent;
1839                 $self->pidl("} else if (PyInt_Check($cvar)) {");
1840                 $self->indent;
1841                 $self->pidl("long test_var;");
1842                 $self->pidl("test_var = PyInt_AsLong($cvar);");
1843                 $self->pidl("if (test_var < int_min || test_var > int_max) {");
1844                 $self->indent;
1845                 $self->pidl("PyErr_Format(PyExc_OverflowError, \"Expected type %s or %s within range %lld - %lld, got %ld\",\\");
1846                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name, int_min, int_max, test_var);");
1847                 $self->pidl($fail);
1848                 $self->deindent;
1849                 $self->pidl("}");
1850                 $self->pidl("$target = test_var;");
1851                 $self->deindent;
1852                 $self->pidl("} else {");
1853                 $self->indent;
1854                 $self->pidl("PyErr_Format(PyExc_TypeError, \"Expected type %s or %s\",\\");
1855                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name);");
1856                 $self->pidl($fail);
1857                 $self->deindent;
1858                 $self->pidl("}");
1859                 $self->deindent;
1860                 $self->pidl("}");
1861                 return;
1862         }
1863
1864         if ($actual_ctype->{TYPE} eq "STRUCT" or $actual_ctype->{TYPE} eq "INTERFACE") {
1865                 my $ctype_name = $self->use_type_variable($ctype);
1866                 unless (defined ($ctype_name)) {
1867                         error($location, "Unable to determine origin of type `" . mapTypeName($ctype) . "'");
1868                         $self->pidl("PyErr_SetString(PyExc_TypeError, \"Can not convert C Type " . mapTypeName($ctype) . " from Python\");");
1869                         return;
1870                 }
1871                 $self->pidl("PY_CHECK_TYPE($ctype_name, $cvar, $fail);");
1872                 $self->pidl("if (talloc_reference($mem_ctx, pytalloc_get_mem_ctx($cvar)) == NULL) {");
1873                 $self->indent;
1874                 $self->pidl("PyErr_NoMemory();");
1875                 $self->pidl("$fail");
1876                 $self->deindent;
1877                 $self->pidl("}");
1878                 $self->assign($target, "(".mapTypeName($ctype)." *)pytalloc_get_ptr($cvar)");
1879                 return;
1880         }
1881
1882         if ($actual_ctype->{TYPE} eq "UNION") {
1883                 my $ctype_name = $self->use_type_variable($ctype);
1884                 unless (defined ($ctype_name)) {
1885                         error($location, "Unable to determine origin of type `" . mapTypeName($ctype) . "'");
1886                         $self->pidl("PyErr_SetString(PyExc_TypeError, \"Can not convert C Type " . mapTypeName($ctype) . " from Python\");");
1887                         return;
1888                 }
1889                 my $export = "pyrpc_export_union($ctype_name, $mem_ctx, $switch, $cvar, \"".mapTypeName($ctype)."\")";
1890                 $self->assign($target, "(".mapTypeName($ctype)." *)$export");
1891                 return;
1892         }
1893
1894         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "DATA_BLOB") {
1895                 $self->pidl("$target = data_blob_talloc($mem_ctx, PyString_AS_STRING($cvar), PyString_GET_SIZE($cvar));");
1896                 return;
1897         }
1898
1899         if ($actual_ctype->{TYPE} eq "SCALAR" and
1900                 ($actual_ctype->{NAME} eq "string"
1901                  or $actual_ctype->{NAME} eq "nbt_string"
1902                  or $actual_ctype->{NAME} eq "nbt_name"
1903                  or $actual_ctype->{NAME} eq "wrepl_nbt_name"
1904                  or $actual_ctype->{NAME} eq "dns_string"
1905                  or $actual_ctype->{NAME} eq "dnsp_string"
1906                  or $actual_ctype->{NAME} eq "dns_name"
1907                  or $actual_ctype->{NAME} eq "ipv4address"
1908                  or $actual_ctype->{NAME} eq "ipv6address"
1909                  or $actual_ctype->{NAME} eq "dnsp_name")) {
1910                 $self->ConvertStringFromPythonData($mem_ctx, $cvar, $target, $fail);
1911                 return;
1912         }
1913
1914         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "NTSTATUS") {
1915                 $self->pidl("$target = NT_STATUS(PyInt_AsLong($cvar));");
1916                 return;
1917         }
1918
1919         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "WERROR") {
1920                 $self->pidl("$target = W_ERROR(PyInt_AsLong($cvar));");
1921                 return;
1922         }
1923
1924         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "HRESULT") {
1925                 $self->pidl("$target = HRES_ERROR(PyInt_AsLong($cvar));");
1926                 return;
1927         }
1928
1929         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "string_array") {
1930                 $self->pidl("$target = PyCObject_AsVoidPtr($cvar);");
1931                 return;
1932         }
1933
1934         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "pointer") {
1935                 $self->assign($target, "PyCObject_AsVoidPtr($cvar)");
1936                 return;
1937         }
1938
1939         fatal($location, "unknown type `$actual_ctype->{TYPE}' for ".mapTypeName($ctype) . ": $cvar");
1940
1941 }
1942
1943 sub ConvertObjectFromPythonLevel($$$$$$$$)
1944 {
1945         my ($self, $env, $mem_ctx, $py_var, $e, $l, $var_name, $fail) = @_;
1946         my $nl = GetNextLevel($e, $l);
1947         if ($nl and $nl->{TYPE} eq "SUBCONTEXT") {
1948                 $nl = GetNextLevel($e, $nl);
1949         }
1950         my $pl = GetPrevLevel($e, $l);
1951         if ($pl and $pl->{TYPE} eq "SUBCONTEXT") {
1952                 $pl = GetPrevLevel($e, $pl);
1953         }
1954
1955         $self->pidl("if ($py_var == NULL) {");
1956         $self->indent;
1957         $self->pidl("PyErr_Format(PyExc_AttributeError, \"Cannot delete NDR object: " .
1958                     mapTypeName($var_name) . "\");");
1959         $self->pidl($fail);
1960         $self->deindent;
1961         $self->pidl("}");
1962
1963         if ($l->{TYPE} eq "POINTER") {
1964                 if ($l->{POINTER_TYPE} ne "ref") {
1965                         $self->pidl("if ($py_var == Py_None) {");
1966                         $self->indent;
1967                         $self->pidl("$var_name = NULL;");
1968                         $self->deindent;
1969                         $self->pidl("} else {");
1970                         $self->indent;
1971                 }
1972                 # if we want to handle more than one level of pointer in python interfaces
1973                 # then this is where we would need to allocate it
1974                 if ($l->{POINTER_TYPE} eq "ref") {
1975                         $self->pidl("$var_name = talloc_ptrtype($mem_ctx, $var_name);");
1976                         $self->pidl("if ($var_name == NULL) {");
1977                         $self->indent;
1978                         $self->pidl("PyErr_NoMemory();");
1979                         $self->pidl($fail);
1980                         $self->deindent;
1981                         $self->pidl("}");
1982                 } elsif ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::is_scalar($nl->{DATA_TYPE})
1983                          and not Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
1984                         $self->pidl("$var_name = talloc_ptrtype($mem_ctx, $var_name);");
1985                         $self->pidl("if ($var_name == NULL) {");
1986                         $self->indent;
1987                         $self->pidl("PyErr_NoMemory();");
1988                         $self->pidl($fail);
1989                         $self->deindent;
1990                         $self->pidl("}");
1991                 } else {
1992                         $self->pidl("$var_name = NULL;");
1993                 }
1994                 unless ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
1995                         $var_name = get_value_of($var_name);
1996                 }
1997                 $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, $nl, $var_name, $fail);
1998                 if ($l->{POINTER_TYPE} ne "ref") {
1999                         $self->deindent;
2000                         $self->pidl("}");
2001                 }
2002         } elsif ($l->{TYPE} eq "ARRAY") {
2003                 if ($pl && $pl->{TYPE} eq "POINTER") {
2004                         $var_name = get_pointer_to($var_name);
2005                 }
2006
2007                 if (is_charset_array($e, $l)) {
2008                         $self->ConvertStringFromPythonData($mem_ctx, $py_var, $var_name, $fail);
2009                 } else {
2010                         my $counter = "$e->{NAME}_cntr_$l->{LEVEL_INDEX}";
2011                         $self->pidl("PY_CHECK_TYPE(&PyList_Type, $py_var, $fail);");
2012                         $self->pidl("{");
2013                         $self->indent;
2014                         $self->pidl("int $counter;");
2015                         if (ArrayDynamicallyAllocated($e, $l)) {
2016                                 $self->pidl("$var_name = talloc_array_ptrtype($mem_ctx, $var_name, PyList_GET_SIZE($py_var));");
2017                                 $self->pidl("if (!$var_name) { $fail; }");
2018                                 $self->pidl("talloc_set_name_const($var_name, \"ARRAY: $var_name\");");
2019                         } else {
2020                                 $self->pidl("if (ARRAY_SIZE($var_name) != PyList_GET_SIZE($py_var)) {");
2021                                 $self->indent;
2022                                 $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));");
2023                                 $self->pidl("$fail");
2024                                 $self->deindent;
2025                                 $self->pidl("}");
2026                         }
2027                         $self->pidl("for ($counter = 0; $counter < PyList_GET_SIZE($py_var); $counter++) {");
2028                         $self->indent;
2029                         $self->ConvertObjectFromPythonLevel($env, $var_name, "PyList_GET_ITEM($py_var, $counter)", $e, $nl, $var_name."[$counter]", $fail);
2030                         $self->deindent;
2031                         $self->pidl("}");
2032                         $self->deindent;
2033                         $self->pidl("}");
2034                 }
2035         } elsif ($l->{TYPE} eq "DATA") {
2036                 if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE})) {
2037                         $var_name = get_pointer_to($var_name);
2038                 }
2039                 $self->ConvertObjectFromPythonData($mem_ctx, $py_var, $l->{DATA_TYPE}, $var_name, $fail, $e->{ORIGINAL});
2040         } elsif ($l->{TYPE} eq "SWITCH") {
2041                 $var_name = get_pointer_to($var_name);
2042                 my $switch = ParseExpr($l->{SWITCH_IS}, $env, $e);
2043                 my $switch_ptr = "$e->{NAME}_switch_$l->{LEVEL_INDEX}";
2044                 $self->pidl("{");
2045                 $self->indent;
2046                 my $union_type = mapTypeName($nl->{DATA_TYPE});
2047                 $self->pidl("$union_type *$switch_ptr;");
2048                 $self->ConvertObjectFromPythonData($mem_ctx, $py_var, $nl->{DATA_TYPE}, $switch_ptr, $fail, $e->{ORIGINAL}, $switch);
2049                 $self->fail_on_null($switch_ptr, $fail);
2050                 $self->assign($var_name, "$switch_ptr");
2051                 $self->deindent;
2052                 $self->pidl("}");
2053         } elsif ($l->{TYPE} eq "SUBCONTEXT") {
2054                 $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, $nl, $var_name, $fail);
2055         } else {
2056                 fatal($e->{ORIGINAL}, "unknown level type $l->{TYPE}");
2057         }
2058 }
2059
2060 sub ConvertObjectFromPython($$$$$$$)
2061 {
2062         my ($self, $env, $mem_ctx, $ctype, $cvar, $target, $fail) = @_;
2063
2064         $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $cvar, $ctype, $ctype->{LEVELS}[0], $target, $fail);
2065 }
2066
2067 sub ConvertScalarToPython($$$)
2068 {
2069         my ($self, $ctypename, $cvar) = @_;
2070
2071         die("expected string for $cvar, not $ctypename") if (ref($ctypename) eq "HASH");
2072
2073         $ctypename = expandAlias($ctypename);
2074
2075         if ($ctypename =~ /^(int64|dlong)$/) {
2076                 return "ndr_PyLong_FromLongLong($cvar)";
2077         }
2078
2079         if ($ctypename =~ /^(uint64|hyper|NTTIME_hyper|NTTIME|NTTIME_1sec|udlong|udlongr|uid_t|gid_t)$/) {
2080                 return "ndr_PyLong_FromUnsignedLongLong($cvar)";
2081         }
2082
2083         if ($ctypename =~ /^(char|int|int8|int16|int32|time_t)$/) {
2084                 return "PyInt_FromLong($cvar)";
2085         }
2086
2087         # Needed to ensure unsigned values in a 32 or 16 bit enum is
2088         # cast correctly to a uint32_t, not sign extended to a a
2089         # possibly 64 bit unsigned long.  (enums are signed in C,
2090         # unsigned in NDR)
2091         if ($ctypename =~ /^(uint32|uint3264)$/) {
2092                 return "ndr_PyLong_FromUnsignedLongLong((uint32_t)$cvar)";
2093         }
2094
2095         if ($ctypename =~ /^(uint|uint8|uint16|uint1632)$/) {
2096                 return "PyInt_FromLong((uint16_t)$cvar)";
2097         }
2098
2099         if ($ctypename eq "DATA_BLOB") {
2100                 return "PyString_FromStringAndSize((char *)($cvar).data, ($cvar).length)";
2101         }
2102
2103         if ($ctypename eq "NTSTATUS") {
2104                 return "PyErr_FromNTSTATUS($cvar)";
2105         }
2106
2107         if ($ctypename eq "WERROR") {
2108                 return "PyErr_FromWERROR($cvar)";
2109         }
2110
2111         if ($ctypename eq "HRESULT") {
2112                 return "PyErr_FromHRESULT($cvar)";
2113         }
2114
2115         if (($ctypename eq "string" or $ctypename eq "nbt_string" or $ctypename eq "nbt_name" or $ctypename eq "wrepl_nbt_name")) {
2116                 return "PyString_FromStringOrNULL($cvar)";
2117         }
2118
2119         if (($ctypename eq "dns_string" or $ctypename eq "dns_name")) {
2120                 return "PyString_FromStringOrNULL($cvar)";
2121         }
2122
2123         # Not yet supported
2124         if ($ctypename eq "string_array") { return "pytalloc_CObject_FromTallocPtr($cvar)"; }
2125         if ($ctypename eq "ipv4address") { return "PyString_FromStringOrNULL($cvar)"; }
2126         if ($ctypename eq "ipv6address") { return "PyString_FromStringOrNULL($cvar)"; }
2127         if ($ctypename eq "dnsp_name") { return "PyString_FromStringOrNULL($cvar)"; }
2128         if ($ctypename eq "dnsp_string") { return "PyString_FromStringOrNULL($cvar)"; }
2129         if ($ctypename eq "pointer") {
2130                 return "pytalloc_CObject_FromTallocPtr($cvar)";
2131         }
2132
2133         die("Unknown scalar type $ctypename");
2134 }
2135
2136 sub ConvertObjectToPythonData($$$$$;$$)
2137 {
2138         my ($self, $mem_ctx, $ctype, $cvar, $location, $switch) = @_;
2139
2140         die("undef type for $cvar") unless(defined($ctype));
2141
2142         $ctype = resolveType($ctype);
2143
2144         my $actual_ctype = $ctype;
2145         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
2146                 $actual_ctype = $actual_ctype->{DATA};
2147         }
2148
2149         if ($actual_ctype->{TYPE} eq "ENUM") {
2150                 return $self->ConvertScalarToPython(Parse::Pidl::Typelist::enum_type_fn($actual_ctype), $cvar);
2151         } elsif ($actual_ctype->{TYPE} eq "BITMAP") {
2152                 return $self->ConvertScalarToPython(Parse::Pidl::Typelist::bitmap_type_fn($actual_ctype), $cvar);
2153         } elsif ($actual_ctype->{TYPE} eq "SCALAR") {
2154                 return $self->ConvertScalarToPython($actual_ctype->{NAME}, $cvar);
2155         } elsif ($actual_ctype->{TYPE} eq "UNION") {
2156                 my $ctype_name = $self->use_type_variable($ctype);
2157                 unless (defined($ctype_name)) {
2158                         error($location, "Unable to determine origin of type `" . mapTypeName($ctype) . "'");
2159                         return "NULL"; # FIXME!
2160                 }
2161                 return "pyrpc_import_union($ctype_name, $mem_ctx, $switch, $cvar, \"".mapTypeName($ctype)."\")";
2162         } elsif ($actual_ctype->{TYPE} eq "STRUCT" or $actual_ctype->{TYPE} eq "INTERFACE") {
2163                 my $ctype_name = $self->use_type_variable($ctype);
2164                 unless (defined($ctype_name)) {
2165                         error($location, "Unable to determine origin of type `" . mapTypeName($ctype) . "'");
2166                         return "NULL"; # FIXME!
2167                 }
2168                 return "pytalloc_reference_ex($ctype_name, $mem_ctx, $cvar)";
2169         }
2170
2171         fatal($location, "unknown type $actual_ctype->{TYPE} for ".mapTypeName($ctype) . ": $cvar");
2172 }
2173
2174 sub fail_on_null($$$)
2175 {
2176         my ($self, $var, $fail) = @_;
2177         $self->pidl("if ($var == NULL) {");
2178         $self->indent;
2179         $self->pidl($fail);
2180         $self->deindent;
2181         $self->pidl("}");
2182 }
2183
2184 sub ConvertObjectToPythonLevel($$$$$$)
2185 {
2186         my ($self, $mem_ctx, $env, $e, $l, $var_name, $py_var, $fail) = @_;
2187         my $nl = GetNextLevel($e, $l);
2188         if ($nl and $nl->{TYPE} eq "SUBCONTEXT") {
2189                 $nl = GetNextLevel($e, $nl);
2190         }
2191         my $pl = GetPrevLevel($e, $l);
2192         if ($pl and $pl->{TYPE} eq "SUBCONTEXT") {
2193                 $pl = GetPrevLevel($e, $pl);
2194         }
2195
2196         if ($l->{TYPE} eq "POINTER") {
2197                 if ($l->{POINTER_TYPE} ne "ref") {
2198                         $self->pidl("if ($var_name == NULL) {");
2199                         $self->indent;
2200                         $self->pidl("$py_var = Py_None;");
2201                         $self->pidl("Py_INCREF($py_var);");
2202                         $self->deindent;
2203                         $self->pidl("} else {");
2204                         $self->indent;
2205                 }
2206                 my $var_name2 = $var_name;
2207                 unless ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
2208                         $var_name2 = get_value_of($var_name);
2209                 }
2210                 $self->ConvertObjectToPythonLevel($var_name, $env, $e, $nl, $var_name2, $py_var, $fail);
2211                 if ($l->{POINTER_TYPE} ne "ref") {
2212                         $self->deindent;
2213                         $self->pidl("}");
2214                 }
2215         } elsif ($l->{TYPE} eq "ARRAY") {
2216                 if ($pl && $pl->{TYPE} eq "POINTER") {
2217                         $var_name = get_pointer_to($var_name);
2218                 }
2219
2220                 if (is_charset_array($e, $l)) {
2221                         # FIXME: Use Unix charset setting rather than utf-8
2222                         $self->pidl("if ($var_name == NULL) {");
2223                         $self->indent;
2224                         $self->pidl("$py_var = Py_None;");
2225                         $self->pidl("Py_INCREF($py_var);");
2226                         $self->deindent;
2227                         $self->pidl("} else {");
2228                         $self->indent;
2229                         $self->pidl("$py_var = PyUnicode_Decode($var_name, strlen($var_name), \"utf-8\", \"ignore\");");
2230                         $self->deindent;
2231                         $self->pidl("}");
2232                 } else {
2233                         die("No SIZE_IS for array $var_name") unless (defined($l->{SIZE_IS}));
2234                         my $length = $l->{SIZE_IS};
2235                         if (defined($l->{LENGTH_IS})) {
2236                                 $length = $l->{LENGTH_IS};
2237                         }
2238
2239                         $length = ParseExpr($length, $env, $e);
2240                         $self->pidl("$py_var = PyList_New($length);");
2241                         $self->fail_on_null($py_var, $fail);
2242                         $self->pidl("{");
2243                         $self->indent;
2244                         my $counter = "$e->{NAME}_cntr_$l->{LEVEL_INDEX}";
2245                         $self->pidl("int $counter;");
2246                         $self->pidl("for ($counter = 0; $counter < ($length); $counter++) {");
2247                         $self->indent;
2248                         my $member_var = "py_$e->{NAME}_$l->{LEVEL_INDEX}";
2249                         $self->pidl("PyObject *$member_var;");
2250                         $self->ConvertObjectToPythonLevel($var_name, $env, $e, $nl, $var_name."[$counter]", $member_var, $fail);
2251                         $self->pidl("PyList_SetItem($py_var, $counter, $member_var);");
2252                         $self->deindent;
2253                         $self->pidl("}");
2254                         $self->deindent;
2255                         $self->pidl("}");
2256                 }
2257         } elsif ($l->{TYPE} eq "SWITCH") {
2258                 $var_name = get_pointer_to($var_name);
2259                 my $switch = ParseExpr($l->{SWITCH_IS}, $env, $e);
2260                 my $conv = $self->ConvertObjectToPythonData($mem_ctx, $nl->{DATA_TYPE}, $var_name, $e->{ORIGINAL}, $switch);
2261                 $self->pidl("$py_var = $conv;");
2262                 $self->fail_on_null($py_var, $fail);
2263
2264         } elsif ($l->{TYPE} eq "DATA") {
2265                 if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE})) {
2266                         $var_name = get_pointer_to($var_name);
2267                 }
2268                 my $conv = $self->ConvertObjectToPythonData($mem_ctx, $l->{DATA_TYPE}, $var_name, $e->{ORIGINAL});
2269                 $self->pidl("$py_var = $conv;");
2270         } elsif ($l->{TYPE} eq "SUBCONTEXT") {
2271                 $self->ConvertObjectToPythonLevel($mem_ctx, $env, $e, $nl, $var_name, $py_var, $fail);
2272         } else {
2273                 fatal($e->{ORIGINAL}, "Unknown level type $l->{TYPE} $var_name");
2274         }
2275 }
2276
2277 sub ConvertObjectToPython($$$$$$)
2278 {
2279         my ($self, $mem_ctx, $env, $ctype, $cvar, $py_var, $fail) = @_;
2280
2281         $self->ConvertObjectToPythonLevel($mem_ctx, $env, $ctype, $ctype->{LEVELS}[0], $cvar, $py_var, $fail);
2282 }
2283
2284 sub Parse($$$$$)
2285 {
2286     my($self,$basename,$ndr,$ndr_hdr,$hdr) = @_;
2287
2288         $self->{BASENAME} = $basename;
2289
2290     $self->pidl_hdr("
2291 /* Python wrapper functions auto-generated by pidl */
2292 #define PY_SSIZE_T_CLEAN 1 /* We use Py_ssize_t for PyArg_ParseTupleAndKeywords */
2293 #include <Python.h>
2294 #include \"includes.h\"
2295 #include <pytalloc.h>
2296 #include \"librpc/rpc/pyrpc.h\"
2297 #include \"librpc/rpc/pyrpc_util.h\"
2298 #include \"$hdr\"
2299 #include \"$ndr_hdr\"
2300
2301 /*
2302  * These functions are here to ensure they can be optimized out by
2303  * the compiler based on the constant input values
2304  */
2305
2306 static inline unsigned long long ndr_sizeof2uintmax(size_t var_size)
2307 {
2308         switch (var_size) {
2309         case 8:
2310                 return UINT64_MAX;
2311         case 4:
2312                 return UINT32_MAX;
2313         case 2:
2314                 return UINT16_MAX;
2315         case 1:
2316                 return UINT8_MAX;
2317         }
2318
2319         return 0;
2320 }
2321
2322 static inline long long ndr_sizeof2intmax(size_t var_size)
2323 {
2324         switch (var_size) {
2325         case 8:
2326                 return INT64_MAX;
2327         case 4:
2328                 return INT32_MAX;
2329         case 2:
2330                 return INT16_MAX;
2331         case 1:
2332                 return INT8_MAX;
2333         }
2334
2335         return 0;
2336 }
2337
2338 static inline PyObject *ndr_PyLong_FromLongLong(long long v)
2339 {
2340         if (v > LONG_MAX || v < LONG_MIN) {
2341                 return PyLong_FromLongLong(v);
2342         } else {
2343                 return PyInt_FromLong(v);
2344         }
2345 }
2346
2347 static inline PyObject *ndr_PyLong_FromUnsignedLongLong(unsigned long long v)
2348 {
2349         if (v > LONG_MAX) {
2350                 return PyLong_FromUnsignedLongLong(v);
2351         } else {
2352                 return PyInt_FromLong(v);
2353         }
2354 }
2355
2356 ");
2357
2358         foreach my $x (@$ndr) {
2359                 ($x->{TYPE} eq "IMPORT") && $self->Import(@{$x->{PATHS}});
2360             ($x->{TYPE} eq "INTERFACE") && $self->Interface($x, $basename);
2361         }
2362
2363         $self->pidl("static PyMethodDef $basename\_methods[] = {");
2364         $self->indent;
2365         foreach (@{$self->{module_methods}}) {
2366                 my ($fn_name, $pyfn_name, $flags, $doc) = @$_;
2367                 $self->pidl("{ \"$fn_name\", (PyCFunction)$pyfn_name, $flags, $doc },");
2368         }
2369
2370         $self->pidl("{ NULL, NULL, 0, NULL }");
2371         $self->deindent;
2372         $self->pidl("};");
2373
2374         $self->pidl("");
2375
2376         $self->pidl_hdr("void init$basename(void);");
2377         $self->pidl("void init$basename(void)");
2378         $self->pidl("{");
2379         $self->indent;
2380         $self->pidl("PyObject *m;");
2381         foreach my $h (@{$self->{module_imports}}) {
2382                 $self->pidl("PyObject *$h->{'key'};");
2383         }
2384         $self->pidl("");
2385
2386         foreach my $h (@{$self->{module_imports}}) {
2387                 my $var_name = $h->{'key'};
2388                 my $module_path = $h->{'val'};
2389                 $self->pidl("$var_name = PyImport_ImportModule(\"$module_path\");");
2390                 $self->pidl("if ($var_name == NULL)");
2391                 $self->pidl("\treturn;");
2392                 $self->pidl("");
2393         }
2394
2395         foreach my $h (@{$self->{type_imports}}) {
2396                 my $type_var = "$h->{'key'}\_Type";
2397                 my $module_path = $h->{'val'};
2398                 $self->pidl_hdr("static PyTypeObject *$type_var;\n");
2399                 my $pretty_name = PrettifyTypeName($h->{'key'}, $module_path);
2400                 my $module_var = "dep_$module_path";
2401                 $module_var =~ s/\./_/g;
2402                 $self->pidl("$type_var = (PyTypeObject *)PyObject_GetAttrString($module_var, \"$pretty_name\");");
2403                 $self->pidl("if ($type_var == NULL)");
2404                 $self->pidl("\treturn;");
2405                 $self->pidl("");
2406         }
2407
2408         $self->pidl($_) foreach (@{$self->{prereadycode}});
2409
2410         foreach (@{$self->{ready_types}}) {
2411                 $self->pidl("if (PyType_Ready($_) < 0)");
2412                 $self->pidl("\treturn;");
2413         }
2414
2415         $self->pidl($_) foreach (@{$self->{postreadycode}});
2416
2417         foreach (@{$self->{patch_type_calls}}) {
2418                 my ($typename, $cvar) = @$_;
2419                 $self->pidl("#ifdef PY_".uc($typename)."_PATCH");
2420                 $self->pidl("PY_".uc($typename)."_PATCH($cvar);");
2421                 $self->pidl("#endif");
2422         }
2423
2424         $self->pidl("");
2425
2426         $self->pidl("m = Py_InitModule3(\"$basename\", $basename\_methods, \"$basename DCE/RPC\");");
2427         $self->pidl("if (m == NULL)");
2428         $self->pidl("\treturn;");
2429         $self->pidl("");
2430         foreach my $h (@{$self->{constants}}) {
2431                 my $pretty_name = PrettifyTypeName($h->{'key'}, $basename);
2432                 my $py_obj;
2433                 my ($ctype, $cvar) = @{$h->{'val'}};
2434                 if ($cvar =~ /^[0-9]+$/ or $cvar =~ /^0x[0-9a-fA-F]+$/) {
2435                         $py_obj = "ndr_PyLong_FromUnsignedLongLong($cvar)";
2436                 } elsif ($cvar =~ /^".*"$/) {
2437                         $py_obj = "PyString_FromString($cvar)";
2438                 } else {
2439                         $py_obj = $self->ConvertObjectToPythonData("NULL", expandAlias($ctype), $cvar, undef);
2440                 }
2441
2442                 $self->pidl("PyModule_AddObject(m, \"$pretty_name\", $py_obj);");
2443         }
2444
2445         foreach (@{$self->{module_objects}}) {
2446                 my ($object_name, $c_name) = @$_;
2447                 $self->pidl("Py_INCREF($c_name);");
2448                 $self->pidl("PyModule_AddObject(m, \"$object_name\", $c_name);");
2449         }
2450
2451         $self->pidl("#ifdef PY_MOD_".uc($basename)."_PATCH");
2452         $self->pidl("PY_MOD_".uc($basename)."_PATCH(m);");
2453         $self->pidl("#endif");
2454
2455         $self->pidl("");
2456         $self->deindent;
2457         $self->pidl("}");
2458     return ($self->{res_hdr} . $self->{res});
2459 }
2460
2461 1;