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                         my $etype = "";
 249                         if (ref($e->{TYPE}) eq "HASH") {
 250                                 $etype = $e->{TYPE}->{NAME};
 251                         } else {
 252                                 $etype = $e->{TYPE};
 253                         }
 254                         $self->pidl("{");
 255                         $self->indent;
 256                         $self->pidl(".name = discard_const_p(char, \"$e->{NAME}\"),");
 257                         $self->pidl(".get = py_$name\_get_$e->{NAME},");
 258                         $self->pidl(".set = py_$name\_set_$e->{NAME},");
 259                         $self->pidl(".doc = discard_const_p(char, \"PIDL-generated element of base type $etype\")");
 260                         $self->deindent;
 261                         $self->pidl("},");
 262                 }
 263                 $self->pidl("{ .name = NULL }");
 264                 $self->deindent;
 265                 $self->pidl("};");
 266                 $self->pidl("");
 267         }
 268
 269         $self->pidl("static PyObject *py_$name\_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
 270         $self->pidl("{");
 271         $self->indent;
 272         $self->pidl("return pytalloc_new($cname, type);");
 273         $self->deindent;
 274         $self->pidl("}");
 275         $self->pidl("");
 276
 277         my $py_methods = "NULL";
 278
 279         # If the struct is not public there ndr_pull/ndr_push functions will
 280         # be static so not callable from here
 281         if (has_property($d, "public")) {
 282                 $self->pidl("static PyObject *py_$name\_ndr_pack(PyObject *py_obj,  PyObject *Py_UNUSED(ignored))");
 283                 $self->pidl("{");
 284                 $self->indent;
 285                 $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(py_obj);");
 286                 $self->pidl("PyObject *ret = NULL;");
 287                 $self->pidl("DATA_BLOB blob;");
 288                 $self->pidl("enum ndr_err_code err;");
 289                 $self->pidl("TALLOC_CTX *tmp_ctx = talloc_new(pytalloc_get_mem_ctx(py_obj));");
 290                 $self->pidl("if (tmp_ctx == NULL) {");
 291                 $self->indent;
 292                 $self->pidl("PyErr_SetNdrError(NDR_ERR_ALLOC);");
 293                 $self->pidl("return NULL;");
 294                 $self->deindent;
 295                 $self->pidl("}");
 296                 $self->pidl("err = ndr_push_struct_blob(&blob, tmp_ctx, object, (ndr_push_flags_fn_t)ndr_push_$name);");
 297                 $self->pidl("if (!NDR_ERR_CODE_IS_SUCCESS(err)) {");
 298                 $self->indent;
 299                 $self->pidl("TALLOC_FREE(tmp_ctx);");
 300                 $self->pidl("PyErr_SetNdrError(err);");
 301                 $self->pidl("return NULL;");
 302                 $self->deindent;
 303                 $self->pidl("}");
 304                 $self->pidl("");
 305                 $self->pidl("ret = PyBytes_FromStringAndSize((char *)blob.data, blob.length);");
 306                 $self->pidl("TALLOC_FREE(tmp_ctx);");
 307                 $self->pidl("return ret;");
 308                 $self->deindent;
 309                 $self->pidl("}");
 310                 $self->pidl("");
 311
 312                 $self->pidl("static PyObject *py_$name\_ndr_unpack(PyObject *py_obj, PyObject *args, PyObject *kwargs)");
 313                 $self->pidl("{");
 314                 $self->indent;
 315                 $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(py_obj);");
 316                 $self->pidl("DATA_BLOB blob = {.data = NULL, .length = 0};");
 317                 $self->pidl("Py_ssize_t blob_length = 0;");
 318                 $self->pidl("enum ndr_err_code err;");
 319                 $self->pidl("const char * const kwnames[] = { \"data_blob\", \"allow_remaining\", NULL };");
 320                 $self->pidl("PyObject *allow_remaining_obj = NULL;");
 321                 $self->pidl("bool allow_remaining = false;");
 322                 $self->pidl("");
 323                 $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, PYARG_BYTES_LEN \"|O:__ndr_unpack__\",");
 324                 $self->indent;
 325                 $self->pidl("discard_const_p(char *, kwnames),");
 326                 $self->pidl("&blob.data, &blob_length,");
 327                 $self->pidl("&allow_remaining_obj)) {");
 328                 $self->deindent;
 329                 $self->indent;
 330                 $self->pidl("return NULL;");
 331                 $self->deindent;
 332                 $self->pidl("}");
 333                 $self->pidl("blob.length = blob_length;");
 334                 $self->pidl("");
 335                 $self->pidl("if (allow_remaining_obj && PyObject_IsTrue(allow_remaining_obj)) {");
 336                 $self->indent;
 337                 $self->pidl("allow_remaining = true;");
 338                 $self->deindent;
 339                 $self->pidl("}");
 340                 $self->pidl("");
 341                 $self->pidl("if (allow_remaining) {");
 342                 $self->indent;
 343                 $self->pidl("err = ndr_pull_struct_blob(&blob, pytalloc_get_mem_ctx(py_obj), object, (ndr_pull_flags_fn_t)ndr_pull_$name);");
 344                 $self->deindent;
 345                 $self->pidl("} else {");
 346                 $self->indent;
 347                 $self->pidl("err = ndr_pull_struct_blob_all(&blob, pytalloc_get_mem_ctx(py_obj), object, (ndr_pull_flags_fn_t)ndr_pull_$name);");
 348                 $self->deindent;
 349                 $self->pidl("}");
 350                 $self->pidl("if (!NDR_ERR_CODE_IS_SUCCESS(err)) {");
 351                 $self->indent;
 352                 $self->pidl("PyErr_SetNdrError(err);");
 353                 $self->pidl("return NULL;");
 354                 $self->deindent;
 355                 $self->pidl("}");
 356                 $self->pidl("");
 357                 $self->pidl("Py_RETURN_NONE;");
 358                 $self->deindent;
 359                 $self->pidl("}");
 360                 $self->pidl("");
 361
 362                 $self->pidl("static PyObject *py_$name\_ndr_print(PyObject *py_obj, PyObject *Py_UNUSED(ignored))");
 363                 $self->pidl("{");
 364                 $self->indent;
 365                 $self->pidl("$cname *object = ($cname *)pytalloc_get_ptr(py_obj);");
 366                 $self->pidl("PyObject *ret;");
 367                 $self->pidl("char *retstr;");
 368                 $self->pidl("");
 369                 $self->pidl("retstr = ndr_print_struct_string(pytalloc_get_mem_ctx(py_obj), (ndr_print_fn_t)ndr_print_$name, \"$name\", object);");
 370                 $self->pidl("ret = PyUnicode_FromString(retstr);");
 371                 $self->pidl("talloc_free(retstr);");
 372                 $self->pidl("");
 373                 $self->pidl("return ret;");
 374                 $self->deindent;
 375                 $self->pidl("}");
 376                 $self->pidl("");
 377
 378                 $py_methods = "py_$name\_methods";
 379                 $self->pidl("static PyMethodDef $py_methods\[] = {");
 380                 $self->indent;
 381                 $self->pidl("{ \"__ndr_pack__\", (PyCFunction)py_$name\_ndr_pack, METH_NOARGS, \"S.ndr_pack(object) -> blob\\nNDR pack\" },");
 382                 $self->pidl("{ \"__ndr_unpack__\", PY_DISCARD_FUNC_SIG(PyCFunction,py_$name\_ndr_unpack), METH_VARARGS|METH_KEYWORDS, \"S.ndr_unpack(class, blob, allow_remaining=False) -> None\\nNDR unpack\" },");
 383                 $self->pidl("{ \"__ndr_print__\", (PyCFunction)py_$name\_ndr_print, METH_NOARGS, \"S.ndr_print(object) -> None\\nNDR print\" },");
 384                 $self->pidl("{ NULL, NULL, 0, NULL }");
 385                 $self->deindent;
 386                 $self->pidl("};");
 387                 $self->pidl("");
 388         }
 389
 390         $self->pidl_hdr("static PyTypeObject $name\_Type;\n");
 391         $self->pidl("");
 392         my $docstring = $self->DocString($d, $name);
 393         my $typeobject = "$name\_Type";
 394         $self->pidl("static PyTypeObject $typeobject = {");
 395         $self->indent;
 396         $self->pidl("PyVarObject_HEAD_INIT(NULL, 0)");
 397         $self->pidl(".tp_name = \"$modulename.$prettyname\",");
 398         $self->pidl(".tp_getset = $getsetters,");
 399         if ($docstring) {
 400                 $self->pidl(".tp_doc = $docstring,");
 401         }
 402         $self->pidl(".tp_methods = $py_methods,");
 403         $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 404         $self->pidl(".tp_new = py_$name\_new,");
 405         $self->deindent;
 406         $self->pidl("};");
 407
 408         $self->pidl("");
 409
 410         my $talloc_typename = $self->import_type_variable("talloc", "BaseObject");
 411         $self->register_module_prereadycode(["$name\_Type.tp_base = $talloc_typename;",
 412                                              "$name\_Type.tp_basicsize = pytalloc_BaseObject_size();",
 413                                              ""]);
 414
 415         return "&$typeobject";
 416 }
 417
 418 sub PythonFunctionStruct($$$$)
 419 {
 420         my ($self, $modulename, $fn, $iface, $prettyname) = @_;
 421
 422         my $inenv = GenerateFunctionInEnv($fn, "object->");
 423         my $outenv = GenerateFunctionOutEnv($fn, "object->");
 424
 425         my $name = "$fn->{NAME}";
 426         my $cname = "struct $name";
 427
 428         $self->pidl("");
 429
 430         my $getsetters = "NULL";
 431
 432         foreach my $e (@{$fn->{ELEMENTS}}) {
 433                 if (grep(/in/,@{$e->{DIRECTION}})) {
 434                         my $inname = "$name\_in";
 435                         my $ename = "in.$e->{NAME}";
 436                         $self->PythonElementGetSet($inname, $cname, $ename, $e, $inenv);
 437                 }
 438                 if (grep(/out/,@{$e->{DIRECTION}})) {
 439                         my $outname = "$name\_out";
 440                         my $ename = "out.$e->{NAME}";
 441                         $self->PythonElementGetSet($outname, $cname, $ename, $e, $outenv);
 442                 }
 443         }
 444
 445         if (defined($fn->{RETURN_TYPE})) {
 446                 my $e = ReturnTypeElement($fn);
 447                 my $ename = "out.result";
 448                 $self->PythonElementGetSet($name, $cname, $ename, $e, $outenv);
 449         }
 450
 451         $getsetters = "py_$name\_getsetters";
 452         $self->pidl("static PyGetSetDef ".$getsetters."[] = {");
 453         $self->indent;
 454         foreach my $e (@{$fn->{ELEMENTS}}) {
 455                 if (grep(/in/,@{$e->{DIRECTION}})) {
 456                         $self->pidl("{");
 457                         $self->indent;
 458                         $self->pidl(".name = discard_const_p(char, \"in_$e->{NAME}\"),");
 459                         $self->pidl(".get = py_$name\_in_get_$e->{NAME},");
 460                         $self->pidl(".set = py_$name\_in_set_$e->{NAME},");
 461                         $self->pidl(".doc = discard_const_p(char, \"PIDL-generated element of base type $e->{TYPE}\")");
 462                         $self->deindent;
 463                         $self->pidl("},");
 464                 }
 465                 if (grep(/out/,@{$e->{DIRECTION}})) {
 466                         $self->pidl("{");
 467                         $self->indent;
 468                         $self->pidl(".name = discard_const_p(char, \"out_$e->{NAME}\"),");
 469                         $self->pidl(".get = py_$name\_out_get_$e->{NAME},");
 470                         $self->pidl(".set = py_$name\_out_set_$e->{NAME},");
 471                         $self->pidl(".doc = discard_const_p(char, \"PIDL-generated element of base type $e->{TYPE}\")");
 472                         $self->deindent;
 473                         $self->pidl("},");
 474                 }
 475         }
 476         if (defined($fn->{RETURN_TYPE})) {
 477                 $self->pidl("{");
 478                 $self->indent;
 479                 $self->pidl(".name = discard_const_p(char, \"result\"),");
 480                 $self->pidl(".get = py_$name\_get_result,");
 481                 $self->pidl(".set = py_$name\_set_result,");
 482                 $self->pidl(".doc = discard_const_p(char, \"PIDL-generated element of type $fn->{RETURN_TYPE}\")");
 483                 $self->deindent;
 484                 $self->pidl("},");
 485         }
 486         $self->pidl("{ .name = NULL }");
 487         $self->deindent;
 488         $self->pidl("};");
 489         $self->pidl("");
 490
 491         $self->pidl("static PyObject *py_$name\_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
 492         $self->pidl("{");
 493         $self->indent;
 494         $self->pidl("return pytalloc_new($cname, type);");
 495         $self->deindent;
 496         $self->pidl("}");
 497         $self->pidl("");
 498
 499         my $py_methods = "NULL";
 500
 501         my $ndr_call = "const struct ndr_interface_call *call = NULL;";
 502         my $object_ptr = "$cname *object = ($cname *)pytalloc_get_ptr(py_obj);";
 503
 504         $self->pidl("static PyObject *py_$name\_ndr_opnum(PyTypeObject *type, PyObject *Py_UNUSED(ignored))");
 505         $self->pidl("{");
 506         $self->indent;
 507         $self->pidl("");
 508         $self->pidl("");
 509         $self->pidl("return PyInt_FromLong($fn->{OPNUM});");
 510         $self->deindent;
 511         $self->pidl("}");
 512         $self->pidl("");
 513
 514         $self->pidl("static PyObject *py_$name\_ndr_pack(PyObject *py_obj, int ndr_inout_flags, uint32_t ndr_push_flags)");
 515         $self->pidl("{");
 516         $self->indent;
 517         $self->pidl("$ndr_call");
 518         $self->pidl("$object_ptr");
 519         $self->pidl("PyObject *ret = NULL;");
 520         $self->pidl("struct ndr_push *push = NULL;");
 521         $self->pidl("DATA_BLOB blob;");
 522         $self->pidl("enum ndr_err_code err;");
 523         $self->pidl("");
 524         $self->pidl("if (ndr_table_$iface\.num_calls < " . ($fn->{OPNUM}+1) .
 525                     ") {");
 526         $self->indent;
 527         $self->pidl("PyErr_SetString(PyExc_TypeError, \"Internal Error, ndr_interface_call missing for py_$name\_ndr_pack\");");
 528         $self->pidl("return NULL;");
 529         $self->deindent;
 530         $self->pidl("}");
 531         $self->pidl("call = &ndr_table_$iface\.calls[$fn->{OPNUM}];");
 532         $self->pidl("");
 533         $self->pidl("push = ndr_push_init_ctx(pytalloc_get_mem_ctx(py_obj));");
 534         $self->pidl("if (push == NULL) {");
 535         $self->indent;
 536         $self->pidl("PyErr_SetNdrError(NDR_ERR_ALLOC);");
 537         $self->pidl("return NULL;");
 538         $self->deindent;
 539         $self->pidl("}");
 540         $self->pidl("");
 541         $self->pidl("push->flags |= ndr_push_flags;");
 542         $self->pidl("");
 543         $self->pidl("err = call->ndr_push(push, ndr_inout_flags, object);");
 544         $self->pidl("if (!NDR_ERR_CODE_IS_SUCCESS(err)) {");
 545         $self->indent;
 546         $self->pidl("TALLOC_FREE(push);");
 547         $self->pidl("PyErr_SetNdrError(err);");
 548         $self->pidl("return NULL;");
 549         $self->deindent;
 550         $self->pidl("}");
 551         $self->pidl("blob = ndr_push_blob(push);");
 552         $self->pidl("ret = PyBytes_FromStringAndSize((char *)blob.data, blob.length);");
 553         $self->pidl("TALLOC_FREE(push);");
 554         $self->pidl("return ret;");
 555         $self->deindent;
 556         $self->pidl("}");
 557         $self->pidl("");
 558
 559         $self->pidl("static PyObject *py_$name\_ndr_pack_in(PyObject *py_obj, PyObject *args, PyObject *kwargs)");
 560         $self->pidl("{");
 561         $self->indent;
 562         $self->pidl("const char * const kwnames[] = { \"bigendian\", \"ndr64\", NULL };");
 563         $self->pidl("PyObject *bigendian_obj = NULL;");
 564         $self->pidl("PyObject *ndr64_obj = NULL;");
 565         $self->pidl("uint32_t ndr_push_flags = 0;");
 566         $self->pidl("");
 567         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"|OO:__ndr_pack_in__\",");
 568         $self->indent;
 569         $self->pidl("discard_const_p(char *, kwnames),");
 570         $self->pidl("&bigendian_obj,");
 571         $self->pidl("&ndr64_obj)) {");
 572         $self->deindent;
 573         $self->indent;
 574         $self->pidl("return NULL;");
 575         $self->deindent;
 576         $self->pidl("}");
 577         $self->pidl("");
 578         $self->pidl("if (bigendian_obj && PyObject_IsTrue(bigendian_obj)) {");
 579         $self->indent;
 580         $self->pidl("ndr_push_flags |= LIBNDR_FLAG_BIGENDIAN;");
 581         $self->deindent;
 582         $self->pidl("}");
 583         $self->pidl("if (ndr64_obj && PyObject_IsTrue(ndr64_obj)) {");
 584         $self->indent;
 585         $self->pidl("ndr_push_flags |= LIBNDR_FLAG_NDR64;");
 586         $self->deindent;
 587         $self->pidl("}");
 588         $self->pidl("");
 589         $self->pidl("return py_$name\_ndr_pack(py_obj, NDR_IN, ndr_push_flags);");
 590         $self->deindent;
 591         $self->pidl("}");
 592         $self->pidl("");
 593
 594         $self->pidl("static PyObject *py_$name\_ndr_pack_out(PyObject *py_obj, PyObject *args, PyObject *kwargs)");
 595         $self->pidl("{");
 596         $self->indent;
 597         $self->pidl("const char * const kwnames[] = { \"bigendian\", \"ndr64\", NULL };");
 598         $self->pidl("PyObject *bigendian_obj = NULL;");
 599         $self->pidl("PyObject *ndr64_obj = NULL;");
 600         $self->pidl("uint32_t ndr_push_flags = 0;");
 601         $self->pidl("");
 602         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"|OO:__ndr_pack_out__\",");
 603         $self->indent;
 604         $self->pidl("discard_const_p(char *, kwnames),");
 605         $self->pidl("&bigendian_obj,");
 606         $self->pidl("&ndr64_obj)) {");
 607         $self->deindent;
 608         $self->indent;
 609         $self->pidl("return NULL;");
 610         $self->deindent;
 611         $self->pidl("}");
 612         $self->pidl("");
 613         $self->pidl("if (bigendian_obj && PyObject_IsTrue(bigendian_obj)) {");
 614         $self->indent;
 615         $self->pidl("ndr_push_flags |= LIBNDR_FLAG_BIGENDIAN;");
 616         $self->deindent;
 617         $self->pidl("}");
 618         $self->pidl("if (ndr64_obj && PyObject_IsTrue(ndr64_obj)) {");
 619         $self->indent;
 620         $self->pidl("ndr_push_flags |= LIBNDR_FLAG_NDR64;");
 621         $self->deindent;
 622         $self->pidl("}");
 623         $self->pidl("");
 624         $self->pidl("return py_$name\_ndr_pack(py_obj, NDR_OUT, ndr_push_flags);");
 625         $self->deindent;
 626         $self->pidl("}");
 627         $self->pidl("");
 628
 629         $self->pidl("static PyObject *py_$name\_ndr_unpack(PyObject *py_obj, const DATA_BLOB *blob, int ndr_inout_flags, uint32_t ndr_pull_flags, bool allow_remaining)");
 630         $self->pidl("{");
 631         $self->indent;
 632         $self->pidl("$ndr_call");
 633         $self->pidl("$object_ptr");
 634         $self->pidl("struct ndr_pull *pull = NULL;");
 635         $self->pidl("enum ndr_err_code err;");
 636         $self->pidl("");
 637         $self->pidl("if (ndr_table_$iface\.num_calls < " . ($fn->{OPNUM}+1) .
 638                     ") {");
 639         $self->indent;
 640         $self->pidl("PyErr_SetString(PyExc_TypeError, \"Internal Error, ndr_interface_call missing for py_$name\_ndr_unpack\");");
 641         $self->pidl("return NULL;");
 642         $self->deindent;
 643         $self->pidl("}");
 644         $self->pidl("call = &ndr_table_$iface\.calls[$fn->{OPNUM}];");
 645         $self->pidl("");
 646         $self->pidl("pull = ndr_pull_init_blob(blob, object);");
 647         $self->pidl("if (pull == NULL) {");
 648         $self->indent;
 649         $self->pidl("PyErr_SetNdrError(NDR_ERR_ALLOC);");
 650         $self->pidl("return NULL;");
 651         $self->deindent;
 652         $self->pidl("}");
 653         $self->pidl("");
 654         $self->pidl("pull->flags |= ndr_pull_flags;");
 655         $self->pidl("");
 656         $self->pidl("err = call->ndr_pull(pull, ndr_inout_flags, object);");
 657         $self->pidl("if (!NDR_ERR_CODE_IS_SUCCESS(err)) {");
 658         $self->indent;
 659         $self->pidl("TALLOC_FREE(pull);");
 660         $self->pidl("PyErr_SetNdrError(err);");
 661         $self->pidl("return NULL;");
 662         $self->deindent;
 663         $self->pidl("}");
 664         $self->pidl("if (!allow_remaining) {");
 665         $self->indent;
 666         $self->pidl("uint32_t highest_ofs;");
 667         $self->pidl("");
 668         $self->pidl("if (pull->offset > pull->relative_highest_offset) {");
 669         $self->indent;
 670         $self->pidl("highest_ofs = pull->offset;");
 671         $self->deindent;
 672         $self->pidl("} else {");
 673         $self->indent;
 674         $self->pidl("highest_ofs = pull->relative_highest_offset;");
 675         $self->deindent;
 676         $self->pidl("}");
 677         $self->pidl("if (highest_ofs < pull->data_size) {");
 678         $self->indent;
 679         $self->pidl("err = ndr_pull_error(pull, NDR_ERR_UNREAD_BYTES,");
 680         $self->indent;
 681         $self->pidl("\"not all bytes consumed ofs[%u] size[%u]\",");
 682         $self->pidl("highest_ofs, pull->data_size);");
 683         $self->deindent;
 684         $self->pidl("TALLOC_FREE(pull);");
 685         $self->pidl("PyErr_SetNdrError(err);");
 686         $self->pidl("return NULL;");
 687         $self->deindent;
 688         $self->pidl("}");
 689         $self->deindent;
 690         $self->pidl("}");
 691         $self->pidl("");
 692         $self->pidl("TALLOC_FREE(pull);");
 693         $self->pidl("Py_RETURN_NONE;");
 694         $self->deindent;
 695         $self->pidl("}");
 696         $self->pidl("");
 697
 698         $self->pidl("static PyObject *py_$name\_ndr_unpack_in(PyObject *py_obj, PyObject *args, PyObject *kwargs)");
 699         $self->pidl("{");
 700         $self->indent;
 701         $self->pidl("DATA_BLOB blob;");
 702         $self->pidl("Py_ssize_t blob_length = 0;");
 703         $self->pidl("const char * const kwnames[] = { \"data_blob\", \"bigendian\", \"ndr64\", \"allow_remaining\", NULL };");
 704         $self->pidl("PyObject *bigendian_obj = NULL;");
 705         $self->pidl("PyObject *ndr64_obj = NULL;");
 706         $self->pidl("uint32_t ndr_pull_flags = LIBNDR_FLAG_REF_ALLOC;");
 707         $self->pidl("PyObject *allow_remaining_obj = NULL;");
 708         $self->pidl("bool allow_remaining = false;");
 709         $self->pidl("");
 710         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, PYARG_BYTES_LEN \"|OOO:__ndr_unpack_in__\",");
 711         $self->indent;
 712         $self->pidl("discard_const_p(char *, kwnames),");
 713         $self->pidl("&blob.data, &blob_length,");
 714         $self->pidl("&bigendian_obj,");
 715         $self->pidl("&ndr64_obj,");
 716         $self->pidl("&allow_remaining_obj)) {");
 717         $self->deindent;
 718         $self->indent;
 719         $self->pidl("return NULL;");
 720         $self->deindent;
 721         $self->pidl("}");
 722         $self->pidl("blob.length = blob_length;");
 723         $self->pidl("");
 724         $self->pidl("if (bigendian_obj && PyObject_IsTrue(bigendian_obj)) {");
 725         $self->indent;
 726         $self->pidl("ndr_pull_flags |= LIBNDR_FLAG_BIGENDIAN;");
 727         $self->deindent;
 728         $self->pidl("}");
 729         $self->pidl("if (ndr64_obj && PyObject_IsTrue(ndr64_obj)) {");
 730         $self->indent;
 731         $self->pidl("ndr_pull_flags |= LIBNDR_FLAG_NDR64;");
 732         $self->deindent;
 733         $self->pidl("}");
 734         $self->pidl("");
 735         $self->pidl("if (allow_remaining_obj && PyObject_IsTrue(allow_remaining_obj)) {");
 736         $self->indent;
 737         $self->pidl("allow_remaining = true;");
 738         $self->deindent;
 739         $self->pidl("}");
 740         $self->pidl("");
 741         $self->pidl("return py_$name\_ndr_unpack(py_obj, &blob, NDR_IN, ndr_pull_flags, allow_remaining);");
 742         $self->deindent;
 743         $self->pidl("}");
 744         $self->pidl("");
 745
 746         $self->pidl("static PyObject *py_$name\_ndr_unpack_out(PyObject *py_obj, PyObject *args, PyObject *kwargs)");
 747         $self->pidl("{");
 748         $self->indent;
 749         $self->pidl("DATA_BLOB blob;");
 750         $self->pidl("Py_ssize_t blob_length = 0;");
 751         $self->pidl("const char * const kwnames[] = { \"data_blob\", \"bigendian\", \"ndr64\", \"allow_remaining\", NULL };");
 752         $self->pidl("PyObject *bigendian_obj = NULL;");
 753         $self->pidl("PyObject *ndr64_obj = NULL;");
 754         $self->pidl("uint32_t ndr_pull_flags = LIBNDR_FLAG_REF_ALLOC;");
 755         $self->pidl("PyObject *allow_remaining_obj = NULL;");
 756         $self->pidl("bool allow_remaining = false;");
 757         $self->pidl("");
 758         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, PYARG_BYTES_LEN \"|OOO:__ndr_unpack_out__\",");
 759         $self->indent;
 760         $self->pidl("discard_const_p(char *, kwnames),");
 761         $self->pidl("&blob.data, &blob_length,");
 762         $self->pidl("&bigendian_obj,");
 763         $self->pidl("&ndr64_obj,");
 764         $self->pidl("&allow_remaining_obj)) {");
 765         $self->deindent;
 766         $self->indent;
 767         $self->pidl("return NULL;");
 768         $self->deindent;
 769         $self->pidl("}");
 770         $self->pidl("blob.length = blob_length;");
 771         $self->pidl("");
 772         $self->pidl("if (bigendian_obj && PyObject_IsTrue(bigendian_obj)) {");
 773         $self->indent;
 774         $self->pidl("ndr_pull_flags |= LIBNDR_FLAG_BIGENDIAN;");
 775         $self->deindent;
 776         $self->pidl("}");
 777         $self->pidl("if (ndr64_obj && PyObject_IsTrue(ndr64_obj)) {");
 778         $self->indent;
 779         $self->pidl("ndr_pull_flags |= LIBNDR_FLAG_NDR64;");
 780         $self->deindent;
 781         $self->pidl("}");
 782         $self->pidl("");
 783         $self->pidl("if (allow_remaining_obj && PyObject_IsTrue(allow_remaining_obj)) {");
 784         $self->indent;
 785         $self->pidl("allow_remaining = true;");
 786         $self->deindent;
 787         $self->pidl("}");
 788         $self->pidl("");
 789         $self->pidl("return py_$name\_ndr_unpack(py_obj, &blob, NDR_OUT, ndr_pull_flags, allow_remaining);");
 790         $self->deindent;
 791         $self->pidl("}");
 792         $self->pidl("");
 793
 794         $self->pidl("static PyObject *py_$name\_ndr_print(PyObject *py_obj, const char *name, int ndr_inout_flags)");
 795         $self->pidl("{");
 796         $self->indent;
 797         $self->pidl("$ndr_call");
 798         $self->pidl("$object_ptr");
 799         $self->pidl("PyObject *ret;");
 800         $self->pidl("char *retstr;");
 801         $self->pidl("");
 802         $self->pidl("if (ndr_table_$iface\.num_calls < " . ($fn->{OPNUM}+1) .
 803                     ") {");
 804         $self->indent;
 805         $self->pidl("PyErr_SetString(PyExc_TypeError, \"Internal Error, ndr_interface_call missing for py_$name\_ndr_print\");");
 806         $self->pidl("return NULL;");
 807         $self->deindent;
 808         $self->pidl("}");
 809         $self->pidl("call = &ndr_table_$iface\.calls[$fn->{OPNUM}];");
 810         $self->pidl("");
 811         $self->pidl("retstr = ndr_print_function_string(pytalloc_get_mem_ctx(py_obj), call->ndr_print, name, ndr_inout_flags, object);");
 812         $self->pidl("ret = PyUnicode_FromString(retstr);");
 813         $self->pidl("TALLOC_FREE(retstr);");
 814         $self->pidl("");
 815         $self->pidl("return ret;");
 816         $self->deindent;
 817         $self->pidl("}");
 818         $self->pidl("");
 819
 820         $self->pidl("static PyObject *py_$name\_ndr_print_in(PyObject *py_obj, PyObject *Py_UNUSED(ignored))");
 821         $self->pidl("{");
 822         $self->indent;
 823         $self->pidl("return py_$name\_ndr_print(py_obj, \"$name\_in\", NDR_IN);");
 824         $self->deindent;
 825         $self->pidl("}");
 826         $self->pidl("");
 827
 828         $self->pidl("static PyObject *py_$name\_ndr_print_out(PyObject *py_obj, PyObject *Py_UNUSED(ignored))");
 829         $self->pidl("{");
 830         $self->indent;
 831         $self->pidl("return py_$name\_ndr_print(py_obj, \"$name\_out\", NDR_OUT);");
 832         $self->deindent;
 833         $self->pidl("}");
 834         $self->pidl("");
 835
 836         $py_methods = "py_$name\_methods";
 837         $self->pidl("static PyMethodDef $py_methods\[] = {");
 838         $self->indent;
 839         $self->pidl("{ \"opnum\", (PyCFunction)py_$name\_ndr_opnum, METH_NOARGS|METH_CLASS,");
 840         $self->indent;
 841         $self->pidl("\"$modulename.$prettyname.opnum() -> ".sprintf("%d (0x%02x)", $fn->{OPNUM}, $fn->{OPNUM})." \" },");
 842         $self->deindent;
 843         $self->pidl("{ \"__ndr_pack_in__\", PY_DISCARD_FUNC_SIG(PyCFunction,py_$name\_ndr_pack_in), METH_VARARGS|METH_KEYWORDS,");
 844         $self->indent;
 845         $self->pidl("\"S.ndr_pack_in(object, bigendian=False, ndr64=False) -> blob\\nNDR pack input\" },");
 846         $self->deindent;
 847         $self->pidl("{ \"__ndr_pack_out__\", PY_DISCARD_FUNC_SIG(PyCFunction,py_$name\_ndr_pack_out), METH_VARARGS|METH_KEYWORDS,");
 848         $self->indent;
 849         $self->pidl("\"S.ndr_pack_out(object, bigendian=False, ndr64=False) -> blob\\nNDR pack output\" },");
 850         $self->deindent;
 851         $self->pidl("{ \"__ndr_unpack_in__\", PY_DISCARD_FUNC_SIG(PyCFunction,py_$name\_ndr_unpack_in), METH_VARARGS|METH_KEYWORDS,");
 852         $self->indent;
 853         $self->pidl("\"S.ndr_unpack_in(class, blob, bigendian=False, ndr64=False, allow_remaining=False) -> None\\nNDR unpack input\" },");
 854         $self->deindent;
 855         $self->pidl("{ \"__ndr_unpack_out__\", PY_DISCARD_FUNC_SIG(PyCFunction,py_$name\_ndr_unpack_out), METH_VARARGS|METH_KEYWORDS,");
 856         $self->indent;
 857         $self->pidl("\"S.ndr_unpack_out(class, blob, bigendian=False, ndr64=False, allow_remaining=False) -> None\\nNDR unpack output\" },");
 858         $self->deindent;
 859         $self->pidl("{ \"__ndr_print_in__\", (PyCFunction)py_$name\_ndr_print_in, METH_NOARGS, \"S.ndr_print_in(object) -> None\\nNDR print input\" },");
 860         $self->pidl("{ \"__ndr_print_out__\", (PyCFunction)py_$name\_ndr_print_out, METH_NOARGS, \"S.ndr_print_out(object) -> None\\nNDR print output\" },");
 861         $self->pidl("{ NULL, NULL, 0, NULL }");
 862         $self->deindent;
 863         $self->pidl("};");
 864         $self->pidl("");
 865
 866         $self->pidl_hdr("static PyTypeObject $name\_Type;\n");
 867         $self->pidl("");
 868         my $docstring = $self->DocString($fn, $name);
 869         my $typeobject = "$name\_Type";
 870         $self->pidl("static PyTypeObject $typeobject = {");
 871         $self->indent;
 872         $self->pidl("PyVarObject_HEAD_INIT(NULL, 0)");
 873         $self->pidl(".tp_name = \"$modulename.$prettyname\",");
 874         $self->pidl(".tp_getset = $getsetters,");
 875         if ($docstring) {
 876                 $self->pidl(".tp_doc = $docstring,");
 877         }
 878         $self->pidl(".tp_methods = $py_methods,");
 879         $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
 880         $self->pidl(".tp_new = py_$name\_new,");
 881         $self->deindent;
 882         $self->pidl("};");
 883
 884         $self->pidl("");
 885
 886         my $talloc_typename = $self->import_type_variable("talloc", "BaseObject");
 887         $self->register_module_prereadycode(["$name\_Type.tp_base = $talloc_typename;",
 888                                              "$name\_Type.tp_basicsize = pytalloc_BaseObject_size();",
 889                                              ""]);
 890
 891         return "&$typeobject";
 892 }
 893
 894 sub get_metadata_var($)
 895 {
 896         my ($e) = @_;
 897         sub get_var($) { my $x = shift; $x =~ s/\*//g; return $x; }
 898
 899          if (has_property($e, "length_is")) {
 900                 return get_var($e->{PROPERTIES}->{length_is});
 901          } elsif (has_property($e, "size_is")) {
 902                 return get_var($e->{PROPERTIES}->{size_is});
 903          }
 904
 905          return undef;
 906 }
 907
 908 sub find_metadata_args($)
 909 {
 910         my ($fn) = @_;
 911         my $metadata_args = { in => {}, out => {} };
 912
 913         # Determine arguments that are metadata for other arguments (size_is/length_is)
 914         foreach my $e (@{$fn->{ELEMENTS}}) {
 915                 foreach my $dir (@{$e->{DIRECTION}}) {
 916                          my $main = get_metadata_var($e);
 917                          if ($main) {
 918                                  $metadata_args->{$dir}->{$main} = $e->{NAME};
 919                          }
 920                  }
 921         }
 922
 923         return $metadata_args;
 924 }
 925
 926 sub PythonFunctionUnpackOut($$$)
 927 {
 928         my ($self, $fn, $fnname) = @_;
 929
 930         my $outfnname = "unpack_$fnname\_args_out";
 931         my $signature = "";
 932
 933         my $metadata_args = find_metadata_args($fn);
 934
 935         my $env = GenerateFunctionOutEnv($fn, "r->");
 936         my $result_size = 0;
 937
 938         $self->pidl("static PyObject *$outfnname(struct $fn->{NAME} *r)");
 939         $self->pidl("{");
 940         $self->indent;
 941         $self->pidl("PyObject *result;");
 942         foreach my $e (@{$fn->{ELEMENTS}}) {
 943                 next unless (grep(/out/,@{$e->{DIRECTION}}));
 944                 next if (($metadata_args->{in}->{$e->{NAME}} and grep(/in/, @{$e->{DIRECTION}})) or
 945                          ($metadata_args->{out}->{$e->{NAME}}) and grep(/out/, @{$e->{DIRECTION}}));
 946                 $self->pidl("PyObject *py_$e->{NAME};");
 947                 $result_size++;
 948         }
 949
 950         if ($fn->{RETURN_TYPE}) {
 951                 $result_size++ unless ($fn->{RETURN_TYPE} eq "WERROR" or $fn->{RETURN_TYPE} eq "NTSTATUS");
 952         }
 953
 954         my $i = 0;
 955
 956         if ($result_size > 1) {
 957                 $self->pidl("result = PyTuple_New($result_size);");
 958                 $signature .= "(";
 959         } elsif ($result_size == 0) {
 960                 $self->pidl("result = Py_None;");
 961                 $self->pidl("Py_INCREF(result);");
 962                 $signature .= "None";
 963         }
 964
 965         foreach my $e (@{$fn->{ELEMENTS}}) {
 966                 next if ($metadata_args->{out}->{$e->{NAME}});
 967                 my $py_name = "py_$e->{NAME}";
 968                 if (grep(/out/,@{$e->{DIRECTION}})) {
 969                         $self->ConvertObjectToPython("r", $env, $e, "r->out.$e->{NAME}", $py_name, "return NULL;");
 970                         if ($result_size > 1) {
 971                                 $self->pidl("PyTuple_SetItem(result, $i, $py_name);");
 972                                 $i++;
 973                                 $signature .= "$e->{NAME}, ";
 974                         } else {
 975                                 $self->pidl("result = $py_name;");
 976                                 $signature .= $e->{NAME};
 977                         }
 978                 }
 979         }
 980
 981         if (defined($fn->{RETURN_TYPE}) and $fn->{RETURN_TYPE} eq "NTSTATUS") {
 982                 $self->handle_ntstatus("r->out.result", "NULL", undef);
 983         } elsif (defined($fn->{RETURN_TYPE}) and $fn->{RETURN_TYPE} eq "WERROR") {
 984                 $self->handle_werror("r->out.result", "NULL", undef);
 985         } elsif (defined($fn->{RETURN_TYPE})) {
 986                 my $conv = $self->ConvertObjectToPythonData("r", $fn->{RETURN_TYPE}, "r->out.result", $fn);
 987                 if ($result_size > 1) {
 988                         $self->pidl("PyTuple_SetItem(result, $i, $conv);");
 989                 } else {
 990                         $self->pidl("result = $conv;");
 991                 }
 992                 $signature .= "result";
 993         }
 994
 995         if (substr($signature, -2) eq ", ") {
 996                 $signature = substr($signature, 0, -2);
 997         }
 998         if ($result_size > 1) {
 999                 $signature .= ")";
1000         }
1001
1002         $self->pidl("return result;");
1003         $self->deindent;
1004         $self->pidl("}");
1005         $self->pidl("");
1006
1007         return ($outfnname, $signature);
1008 }
1009
1010 sub PythonFunctionPackIn($$$)
1011 {
1012         my ($self, $fn, $fnname) = @_;
1013         my $metadata_args = find_metadata_args($fn);
1014
1015         my $infnname = "pack_$fnname\_args_in";
1016
1017         $self->pidl("static bool $infnname(PyObject *args, PyObject *kwargs, struct $fn->{NAME} *r)");
1018         $self->pidl("{");
1019         $self->indent;
1020         my $args_format = "";
1021         my $args_string = "";
1022         my $args_names = "";
1023         my $signature = "";
1024
1025         foreach my $e (@{$fn->{ELEMENTS}}) {
1026                 next unless (grep(/in/,@{$e->{DIRECTION}}));
1027                 next if (($metadata_args->{in}->{$e->{NAME}} and grep(/in/, @{$e->{DIRECTION}})) or
1028                                  ($metadata_args->{out}->{$e->{NAME}}) and grep(/out/, @{$e->{DIRECTION}}));
1029                 $self->pidl("PyObject *py_$e->{NAME};");
1030                 $args_format .= "O";
1031                 $args_string .= ", &py_$e->{NAME}";
1032                 $args_names .= "\"$e->{NAME}\", ";
1033                 $signature .= "$e->{NAME}, ";
1034         }
1035         if (substr($signature, -2) eq ", ") {
1036                 $signature = substr($signature, 0, -2);
1037         }
1038         $self->pidl("const char *kwnames[] = {");
1039         $self->indent;
1040         $self->pidl($args_names . "NULL");
1041         $self->deindent;
1042         $self->pidl("};");
1043
1044         $self->pidl("");
1045         $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"$args_format:$fn->{NAME}\", discard_const_p(char *, kwnames)$args_string)) {");
1046         $self->indent;
1047         $self->pidl("return false;");
1048         $self->deindent;
1049         $self->pidl("}");
1050         $self->pidl("");
1051
1052         my $env = GenerateFunctionInEnv($fn, "r->");
1053
1054         my $fail = "return false;";
1055         foreach my $e (@{$fn->{ELEMENTS}}) {
1056                 next unless (grep(/in/,@{$e->{DIRECTION}}));
1057                 if ($metadata_args->{in}->{$e->{NAME}}) {
1058                         my $py_var = "py_".$metadata_args->{in}->{$e->{NAME}};
1059                         $self->pidl("PY_CHECK_TYPE(&PyList_Type, $py_var, $fail);");
1060                         my $val = "PyList_GET_SIZE($py_var)";
1061                         if ($e->{LEVELS}[0]->{TYPE} eq "POINTER") {
1062                                 $self->pidl("r->in.$e->{NAME} = talloc_ptrtype(r, r->in.$e->{NAME});");
1063                                 $self->pidl("if (r->in.$e->{NAME} == NULL) {");
1064                                 $self->indent;
1065                                 $self->pidl("PyErr_NoMemory();");
1066                                 $self->pidl($fail);
1067                                 $self->deindent;
1068                                 $self->pidl("}");
1069                                 $self->pidl("*r->in.$e->{NAME} = $val;");
1070                         } else {
1071                                 $self->pidl("r->in.$e->{NAME} = $val;");
1072                         }
1073                 } else {
1074                         $self->ConvertObjectFromPython($env, "r", $e, "py_$e->{NAME}", "r->in.$e->{NAME}", $fail);
1075                 }
1076         }
1077         $self->pidl("return true;");
1078         $self->deindent;
1079         $self->pidl("}");
1080         $self->pidl("");
1081         return ($infnname, $signature);
1082 }
1083
1084 sub PythonFunction($$$)
1085 {
1086         my ($self, $fn, $iface, $prettyname) = @_;
1087
1088         my $fnname = "py_$fn->{NAME}";
1089         my $docstring = $self->DocString($fn, $fn->{NAME});
1090
1091         my ($infn, $insignature) = $self->PythonFunctionPackIn($fn, $fnname);
1092         my ($outfn, $outsignature) = $self->PythonFunctionUnpackOut($fn, $fnname);
1093         my $signature = "S.$prettyname($insignature) -> $outsignature";
1094         if ($docstring) {
1095                 $docstring = "\"$signature\\n\\n\"$docstring";
1096         } else {
1097                 $docstring = "\"$signature\"";
1098         }
1099
1100         return ($infn, $outfn, $docstring);
1101 }
1102
1103 sub handle_werror($$$$)
1104 {
1105         my ($self, $var, $retval, $mem_ctx) = @_;
1106
1107         $self->pidl("if (!W_ERROR_IS_OK($var)) {");
1108         $self->indent;
1109         $self->pidl("PyErr_SetWERROR($var);");
1110         $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
1111         $self->pidl("return $retval;");
1112         $self->deindent;
1113         $self->pidl("}");
1114         $self->pidl("");
1115 }
1116
1117 sub handle_ntstatus($$$$)
1118 {
1119         my ($self, $var, $retval, $mem_ctx) = @_;
1120
1121         $self->pidl("if (NT_STATUS_IS_ERR($var)) {");
1122         $self->indent;
1123         $self->pidl("PyErr_SetNTSTATUS($var);");
1124         $self->pidl("talloc_free($mem_ctx);") if ($mem_ctx);
1125         $self->pidl("return $retval;");
1126         $self->deindent;
1127         $self->pidl("}");
1128         $self->pidl("");
1129 }
1130
1131 sub PythonType($$$$)
1132 {
1133         my ($self, $modulename, $d, $interface, $basename) = @_;
1134
1135         my $actual_ctype = $d;
1136         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
1137                 $actual_ctype = $actual_ctype->{DATA};
1138         }
1139
1140         if ($actual_ctype->{TYPE} eq "STRUCT") {
1141                 my $typeobject;
1142                 my $fn_name = PrettifyTypeName($d->{NAME}, $basename);
1143
1144                 if ($d->{TYPE} eq "STRUCT") {
1145                         $typeobject = $self->PythonStruct($modulename, $fn_name, $d->{NAME}, mapTypeName($d), $d);
1146                 } else {
1147                         $typeobject = $self->PythonStruct($modulename, $fn_name, $d->{NAME}, mapTypeName($d), $d->{DATA});
1148                 }
1149
1150                 $self->register_module_typeobject($fn_name, $typeobject, $d->{ORIGINAL});
1151         }
1152
1153         if ($d->{TYPE} eq "ENUM" or $d->{TYPE} eq "BITMAP") {
1154                 $self->EnumAndBitmapConsts($d->{NAME}, $d);
1155         }
1156
1157         if ($d->{TYPE} eq "TYPEDEF" and ($d->{DATA}->{TYPE} eq "ENUM" or $d->{DATA}->{TYPE} eq "BITMAP")) {
1158                 $self->EnumAndBitmapConsts($d->{NAME}, $d->{DATA});
1159         }
1160
1161         if ($actual_ctype->{TYPE} eq "UNION" and defined($actual_ctype->{ELEMENTS})) {
1162                 my $prettyname = PrettifyTypeName($d->{NAME}, $basename);
1163                 my $typeobject = "$d->{NAME}\_Type";
1164                 my $docstring = $self->DocString($d, $d->{NAME});
1165                 my $cname = "union $d->{NAME}";
1166
1167                 $self->pidl("static PyObject *py_import_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, " .mapTypeName($d) . " *in)");
1168                 $self->pidl("{");
1169                 $self->indent;
1170                 $self->FromUnionToPythonFunction("mem_ctx", $actual_ctype, "level", "in") if ($actual_ctype->{TYPE} eq "UNION");
1171                 $self->deindent;
1172                 $self->pidl("}");
1173                 $self->pidl("");
1174
1175                 $self->pidl("static ".mapTypeName($d) . " *py_export_$d->{NAME}(TALLOC_CTX *mem_ctx, int level, PyObject *in)");
1176                 $self->pidl("{");
1177                 $self->indent;
1178                 $self->FromPythonToUnionFunction($actual_ctype, mapTypeName($d), "level", "mem_ctx", "in") if ($actual_ctype->{TYPE} eq "UNION");
1179                 $self->deindent;
1180                 $self->pidl("}");
1181                 $self->pidl("");
1182
1183                 my $getsetters = "NULL";
1184                 my $py_methods = "NULL";
1185                 my $typename = mapTypeName($d);
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("TALLOC_CTX *mem_ctx = NULL;");
1193                 $self->pidl("int level = 0;");
1194                 $self->pidl("PyObject *in_obj = NULL;");
1195                 $self->pidl("$typename *in = NULL;");
1196                 $self->pidl("");
1197                 $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"OiO:import\",");
1198                 $self->indent;
1199                 $self->pidl("discard_const_p(char *, kwnames),");
1200                 $self->pidl("&mem_ctx_obj,");
1201                 $self->pidl("&level,");
1202                 $self->pidl("&in_obj)) {");
1203                 $self->deindent;
1204                 $self->indent;
1205                 $self->pidl("return NULL;");
1206                 $self->deindent;
1207                 $self->pidl("}");
1208                 $self->pidl("mem_ctx = pytalloc_get_ptr(mem_ctx_obj);");
1209                 $self->pidl("if (mem_ctx == NULL) {");
1210                 $self->indent;
1211                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"mem_ctx is NULL)!\");");
1212                 $self->pidl("return NULL;");
1213                 $self->deindent;
1214                 $self->pidl("}");
1215                 $self->pidl("in = ($typename *)pytalloc_get_ptr(in_obj);");
1216                 $self->pidl("if (in == NULL) {");
1217                 $self->indent;
1218                 $self->pidl("PyErr_Format(PyExc_TypeError, \"in needs to be a pointer to $typename!\");");
1219                 $self->pidl("return NULL;");
1220                 $self->deindent;
1221                 $self->pidl("}");
1222                 $self->pidl("");
1223                 $self->pidl("return py_import_$d->{NAME}(mem_ctx, level, in);");
1224                 $self->deindent;
1225                 $self->pidl("}");
1226                 $self->pidl("");
1227
1228                 $self->pidl("static PyObject *py_$d->{NAME}\_export(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
1229                 $self->pidl("{");
1230                 $self->indent;
1231                 $self->pidl("const char * const kwnames[] = { \"mem_ctx\", \"level\", \"in\", NULL };");
1232                 $self->pidl("PyObject *mem_ctx_obj = NULL;");
1233                 $self->pidl("TALLOC_CTX *mem_ctx = NULL;");
1234                 $self->pidl("int level = 0;");
1235                 $self->pidl("PyObject *in = NULL;");
1236                 $self->pidl("$typename *out = NULL;");
1237                 $self->pidl("");
1238                 $self->pidl("if (!PyArg_ParseTupleAndKeywords(args, kwargs, \"OiO:export\",");
1239                 $self->indent;
1240                 $self->pidl("discard_const_p(char *, kwnames),");
1241                 $self->pidl("&mem_ctx_obj,");
1242                 $self->pidl("&level,");
1243                 $self->pidl("&in)) {");
1244                 $self->deindent;
1245                 $self->indent;
1246                 $self->pidl("return NULL;");
1247                 $self->deindent;
1248                 $self->pidl("}");
1249                 $self->pidl("mem_ctx = pytalloc_get_ptr(mem_ctx_obj);");
1250                 $self->pidl("if (mem_ctx == NULL) {");
1251                 $self->indent;
1252                 $self->pidl("PyErr_SetString(PyExc_TypeError, \"mem_ctx is NULL)!\");");
1253                 $self->pidl("return NULL;");
1254                 $self->deindent;
1255                 $self->pidl("}");
1256                 $self->pidl("");
1257                 $self->pidl("out = py_export_$d->{NAME}(mem_ctx, level, in);");
1258                 $self->pidl("if (out == NULL) {");
1259                 $self->indent;
1260                 $self->pidl("return NULL;");
1261                 $self->deindent;
1262                 $self->pidl("}");
1263                 $self->pidl("");
1264                 $self->pidl("return pytalloc_GenericObject_reference(out);");
1265                 $self->deindent;
1266                 $self->pidl("}");
1267                 $self->pidl("");
1268
1269                 $py_methods = "py_$d->{NAME}_methods";
1270                 $self->pidl("static PyMethodDef $py_methods\[] = {");
1271                 $self->indent;
1272                 $self->pidl("{ \"__import__\", PY_DISCARD_FUNC_SIG(PyCFunction,py_$d->{NAME}\_import),");
1273                 $self->indent;
1274                 $self->pidl("METH_VARARGS|METH_KEYWORDS|METH_CLASS,");
1275                 $self->pidl("\"T.__import__(mem_ctx, level, in) => ret.\" },");
1276                 $self->deindent;
1277                 $self->pidl("{ \"__export__\", PY_DISCARD_FUNC_SIG(PyCFunction,py_$d->{NAME}\_export),");
1278                 $self->indent;
1279                 $self->pidl("METH_VARARGS|METH_KEYWORDS|METH_CLASS,");
1280                 $self->pidl("\"T.__export__(mem_ctx, level, in) => ret.\" },");
1281                 $self->deindent;
1282                 $self->pidl("{ NULL, NULL, 0, NULL }");
1283                 $self->deindent;
1284                 $self->pidl("};");
1285                 $self->pidl("");
1286
1287                 $self->pidl("static PyObject *py_$d->{NAME}\_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
1288                 $self->pidl("{");
1289                 $self->indent;
1290                 $self->pidl("PyErr_Format(PyExc_TypeError, \"New %s Objects are not supported\", type->tp_name);");
1291                 $self->pidl("return NULL;");
1292                 $self->deindent;
1293                 $self->pidl("}");
1294                 $self->pidl("");
1295
1296                 $self->pidl("");
1297                 $self->pidl_hdr("static PyTypeObject $typeobject;\n");
1298                 $self->pidl("static PyTypeObject $typeobject = {");
1299                 $self->indent;
1300                 $self->pidl("PyVarObject_HEAD_INIT(NULL, 0)");
1301                 $self->pidl(".tp_name = \"$modulename.$prettyname\",");
1302                 $self->pidl(".tp_getset = $getsetters,");
1303                 if ($docstring) {
1304                         $self->pidl(".tp_doc = $docstring,");
1305                 }
1306                 $self->pidl(".tp_methods = $py_methods,");
1307                 $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
1308                 $self->pidl(".tp_new = py_$d->{NAME}\_new,");
1309                 $self->deindent;
1310                 $self->pidl("};");
1311
1312                 $self->pidl("");
1313
1314                 my $talloc_typename = $self->import_type_variable("talloc", "BaseObject");
1315                 $self->register_module_prereadycode(["$typeobject.tp_base = $talloc_typename;",
1316                                                      "$typeobject.tp_basicsize = pytalloc_BaseObject_size();",
1317                                                      ""]);
1318
1319                 $self->register_module_typeobject($prettyname, "&$typeobject", $d->{ORIGINAL});
1320         }
1321 }
1322
1323 sub DocString($$$)
1324 {
1325         my ($self, $d, $name) = @_;
1326         if (has_property($d, "helpstring")) {
1327                 my $docstring = uc("py_doc_$name");
1328                 $self->pidl("#define $docstring ".has_property($d, "helpstring"));
1329                 return $docstring;
1330         }
1331
1332         return undef;
1333 }
1334
1335 sub Interface($$$)
1336 {
1337         my($self,$interface,$basename) = @_;
1338
1339         if (has_property($interface, "pyhelper")) {
1340                 $self->pidl("#include \"".unmake_str($interface->{PROPERTIES}->{pyhelper})."\"\n");
1341         }
1342
1343         $self->Const($_) foreach (@{$interface->{CONSTS}});
1344
1345         foreach my $d (@{$interface->{TYPES}}) {
1346                 next if has_property($d, "nopython");
1347
1348                 $self->PythonType($basename, $d, $interface, $basename);
1349         }
1350
1351         if (defined $interface->{PROPERTIES}->{uuid}) {
1352                 $self->pidl_hdr("static PyTypeObject $interface->{NAME}_InterfaceType;\n");
1353                 $self->pidl("");
1354
1355                 my @fns = ();
1356
1357                 foreach my $d (@{$interface->{FUNCTIONS}}) {
1358                         next if has_property($d, "noopnum");
1359                         next if has_property($d, "nopython");
1360                         next if has_property($d, "todo");
1361
1362                         my $skip = 0;
1363                         foreach my $e (@{$d->{ELEMENTS}}) {
1364                                 if (ContainsPipe($e, $e->{LEVELS}[0])) {
1365                                         $skip = 1;
1366                                         last;
1367                                 }
1368                         }
1369                         next if $skip;
1370
1371                         my $prettyname = $d->{NAME};
1372
1373                         $prettyname =~ s/^$interface->{NAME}_//;
1374                         $prettyname =~ s/^$basename\_//;
1375
1376                         my $typeobject = $self->PythonFunctionStruct($basename, $d, $interface->{NAME}, $prettyname);
1377                         $self->register_module_typeobject($prettyname, $typeobject, $d->{ORIGINAL});
1378
1379                         my ($infn, $outfn, $fndocstring) = $self->PythonFunction($d, $interface->{NAME}, $prettyname);
1380
1381                         push (@fns, [$infn, $outfn, "dcerpc_$d->{NAME}_r", $prettyname, $fndocstring, $d->{OPNUM}]);
1382                 }
1383
1384                 $self->pidl("const struct PyNdrRpcMethodDef py_ndr_$interface->{NAME}\_methods[] = {");
1385                 $self->indent;
1386                 foreach my $d (@fns) {
1387                         my ($infn, $outfn, $callfn, $prettyname, $docstring, $opnum) = @$d;
1388                         $self->pidl("{ \"$prettyname\", $docstring, (py_dcerpc_call_fn)$callfn, (py_data_pack_fn)$infn, (py_data_unpack_fn)$outfn, $opnum, &ndr_table_$interface->{NAME} },");
1389                 }
1390                 $self->pidl("{ NULL }");
1391                 $self->deindent;
1392                 $self->pidl("};");
1393                 $self->pidl("");
1394
1395                 $self->pidl("static PyObject *interface_$interface->{NAME}_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
1396                 $self->pidl("{");
1397                 $self->indent;
1398                 $self->pidl("return py_dcerpc_interface_init_helper(type, args, kwargs, &ndr_table_$interface->{NAME});");
1399                 $self->deindent;
1400                 $self->pidl("}");
1401
1402                 $self->pidl("");
1403
1404                 my $signature =
1405 "\"$interface->{NAME}(binding, lp_ctx=None, credentials=None) -> connection\\n\"
1406 \"\\n\"
1407 \"binding should be a DCE/RPC binding string (for example: ncacn_ip_tcp:127.0.0.1)\\n\"
1408 \"lp_ctx should be a path to a smb.conf file or a param.LoadParm object\\n\"
1409 \"credentials should be a credentials.Credentials object.\\n\\n\"";
1410
1411                 my $docstring = $self->DocString($interface, $interface->{NAME});
1412
1413                 if ($docstring) {
1414                         $docstring = "$signature$docstring";
1415                 } else {
1416                         $docstring = $signature;
1417                 }
1418
1419                 my $if_typename = "$interface->{NAME}_InterfaceType";
1420
1421                 $self->pidl("static PyTypeObject $if_typename = {");
1422                 $self->indent;
1423                 $self->pidl("PyVarObject_HEAD_INIT(NULL, 0)");
1424                 $self->pidl(".tp_name = \"$basename.$interface->{NAME}\",");
1425                 $self->pidl(".tp_basicsize = sizeof(dcerpc_InterfaceObject),");
1426                 $self->pidl(".tp_doc = $docstring,");
1427                 $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
1428                 $self->pidl(".tp_new = interface_$interface->{NAME}_new,");
1429                 $self->deindent;
1430                 $self->pidl("};");
1431
1432                 $self->pidl("");
1433
1434                 $self->register_module_typeobject($interface->{NAME}, "&$if_typename", $interface->{ORIGINAL});
1435                 my $dcerpc_typename = $self->import_type_variable("samba.dcerpc.base", "ClientConnection");
1436                 $self->register_module_prereadycode(["$if_typename.tp_base = $dcerpc_typename;", ""]);
1437                 $self->register_module_postreadycode(["if (!PyInterface_AddNdrRpcMethods(&$if_typename, py_ndr_$interface->{NAME}\_methods))", "\treturn NULL;", ""]);
1438
1439
1440                 $self->pidl("static PyObject *syntax_$interface->{NAME}_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)");
1441                 $self->pidl("{");
1442                 $self->indent;
1443                 $self->pidl("return py_dcerpc_syntax_init_helper(type, args, kwargs, &ndr_table_$interface->{NAME}.syntax_id);");
1444                 $self->deindent;
1445                 $self->pidl("}");
1446
1447                 $self->pidl("");
1448
1449                 my $signature = "\"$interface->{NAME}_abstract_syntax()\\n\"";
1450
1451                 my $docstring = $self->DocString($interface, $interface->{NAME}."_syntax");
1452
1453                 if ($docstring) {
1454                         $docstring = "$signature$docstring";
1455                 } else {
1456                         $docstring = $signature;
1457                 }
1458
1459                 my $syntax_typename = "$interface->{NAME}_SyntaxType";
1460
1461                 $self->pidl("static PyTypeObject $syntax_typename = {");
1462                 $self->indent;
1463                 $self->pidl("PyVarObject_HEAD_INIT(NULL, 0)");
1464                 $self->pidl(".tp_name = \"$basename.$interface->{NAME}_abstract_syntax\",");
1465                 $self->pidl(".tp_doc = $docstring,");
1466                 $self->pidl(".tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,");
1467                 $self->pidl(".tp_new = syntax_$interface->{NAME}_new,");
1468                 $self->deindent;
1469                 $self->pidl("};");
1470
1471                 $self->pidl("");
1472
1473                 $self->register_module_typeobject("$interface->{NAME}_abstract_syntax", "&$syntax_typename", $interface->{ORIGINAL});
1474                 if (not defined($self->existing_module_object("abstract_syntax"))) {
1475                         # Only the first syntax gets registered with the legacy
1476                         # "abstract_syntax" name
1477                         $self->register_module_typeobject("abstract_syntax", "&$syntax_typename", $interface->{ORIGINAL});
1478                 }
1479                 my $ndr_typename = $self->import_type_variable("samba.dcerpc.misc", "ndr_syntax_id");
1480                 $self->register_module_prereadycode(["$syntax_typename.tp_base = $ndr_typename;",
1481                                                      "$syntax_typename.tp_basicsize = pytalloc_BaseObject_size();",
1482                                                      ""]);
1483         }
1484
1485         $self->pidl_hdr("\n");
1486 }
1487
1488 sub register_module_method($$$$$)
1489 {
1490         my ($self, $fn_name, $pyfn_name, $flags, $doc) = @_;
1491
1492         push (@{$self->{module_methods}}, [$fn_name, $pyfn_name, $flags, $doc])
1493 }
1494
1495 sub register_module_typeobject($$$$)
1496 {
1497         my ($self, $name, $py_name, $location) = @_;
1498
1499         $self->register_module_object($name, "(PyObject *)(void *)$py_name", $location);
1500
1501         $self->check_ready_type($py_name);
1502
1503         $self->register_patch_type_call($name, $py_name);
1504 }
1505
1506 sub check_ready_type($$)
1507 {
1508         my ($self, $py_name) = @_;
1509         push (@{$self->{ready_types}}, $py_name) unless (grep(/^$py_name$/,@{$self->{ready_types}}));
1510 }
1511
1512 sub register_module_import($$)
1513 {
1514         my ($self, $module_path) = @_;
1515
1516         my $var_name = $module_path;
1517         $var_name =~ s/\./_/g;
1518         $var_name = "dep_$var_name";
1519
1520         unless (defined $self->{module_imports_uniq}->{$var_name}) {
1521                 my $h = { "key" => $var_name, "val" => $module_path};
1522                 push @{$self->{module_imports}}, $h;
1523                 $self->{module_imports_uniq}->{$var_name} = $h;
1524         }
1525         return $var_name;
1526 }
1527
1528 sub import_type_variable($$$)
1529 {
1530         my ($self, $module, $name) = @_;
1531
1532         $self->register_module_import($module);
1533         unless (defined $self->{type_imports_uniq}->{$name}) {
1534                 my $h = { "key" => $name, "val" => $module};
1535                 push @{$self->{type_imports}}, $h;
1536                 $self->{type_imports_uniq}->{$name} = $h;
1537         }
1538         return "$name\_Type";
1539 }
1540
1541 sub use_type_variable($$)
1542 {
1543         my ($self, $orig_ctype) = @_;
1544         # FIXME: Have a global lookup table for types that look different on the
1545         # wire than they are named in C?
1546         if ($orig_ctype->{NAME} eq "dom_sid2" or
1547             $orig_ctype->{NAME} eq "dom_sid28" or
1548             $orig_ctype->{NAME} eq "dom_sid0") {
1549                 $orig_ctype->{NAME} = "dom_sid";
1550         }
1551         if ($orig_ctype->{NAME} eq "spoolss_security_descriptor") {
1552                 $orig_ctype->{NAME} = "security_descriptor";
1553         }
1554
1555         my $ctype = resolveType($orig_ctype);
1556         unless (defined($ctype->{BASEFILE})) {
1557                 return undef;
1558         }
1559         # If this is an external type, make sure we do the right imports.
1560         if (($ctype->{BASEFILE} ne $self->{BASENAME})) {
1561                 return $self->import_type_variable("samba.dcerpc.$ctype->{BASEFILE}", $ctype->{NAME});
1562         }
1563         return "&$ctype->{NAME}_Type";
1564 }
1565
1566 sub register_patch_type_call($$$)
1567 {
1568         my ($self, $typename, $cvar) = @_;
1569
1570         push(@{$self->{patch_type_calls}}, [$typename, $cvar]);
1571
1572 }
1573
1574 sub register_module_prereadycode($$)
1575 {
1576         my ($self, $code) = @_;
1577
1578         push (@{$self->{prereadycode}}, @$code);
1579 }
1580
1581 sub register_module_postreadycode($$)
1582 {
1583         my ($self, $code) = @_;
1584
1585         push (@{$self->{postreadycode}}, @$code);
1586 }
1587
1588 sub existing_module_object($$)
1589 {
1590         my ($self, $name) = @_;
1591
1592         if (defined($self->{module_object_uniq}->{$name})) {
1593                 return $self->{module_object_uniq}->{$name};
1594         }
1595
1596         return undef;
1597 }
1598
1599 sub register_module_object($$$$)
1600 {
1601         my ($self, $name, $py_name, $location) = @_;
1602
1603         my $existing = $self->existing_module_object($name);
1604         fatal($location, "module_object($name, $py_name) registered twice! $existing.") if defined($existing);
1605
1606         push (@{$self->{module_objects}}, [$name, $py_name]);
1607         $self->{module_object_uniq}->{$name} = $py_name;
1608 }
1609
1610 sub assign($$$)
1611 {
1612         my ($self, $dest, $src) = @_;
1613         if ($dest =~ /^\&/ and $src eq "NULL") {
1614                 $self->pidl("memset($dest, 0, sizeof(" . get_value_of($dest) . "));");
1615         } elsif ($dest =~ /^\&/) {
1616                 my $destvar = get_value_of($dest);
1617                 $self->pidl("$destvar = *$src;");
1618         } else {
1619                 $self->pidl("$dest = $src;");
1620         }
1621 }
1622
1623 sub ConvertStringFromPythonData($$$$$)
1624 {
1625         my ($self, $mem_ctx, $py_var, $target, $fail) = @_;
1626
1627         $self->pidl("{");
1628         $self->indent;
1629         $self->pidl("const char *test_str;");
1630         $self->pidl("const char *talloc_str;");
1631         $self->pidl("PyObject *unicode = NULL;");
1632         $self->pidl("if (PyUnicode_Check($py_var)) {");
1633         $self->indent;
1634         # FIXME: Use Unix charset setting rather than utf-8
1635         $self->pidl("unicode = PyUnicode_AsEncodedString($py_var, \"utf-8\", \"ignore\");");
1636         $self->pidl("if (unicode == NULL) {");
1637         $self->indent;
1638         $self->pidl("PyErr_NoMemory();");
1639         $self->pidl("$fail");
1640         $self->deindent;
1641         $self->pidl("}");
1642
1643         $self->pidl("test_str = PyBytes_AS_STRING(unicode);");
1644         $self->deindent;
1645         $self->pidl("} else if (PyBytes_Check($py_var)) {");
1646         $self->indent;
1647         $self->pidl("test_str = PyBytes_AS_STRING($py_var);");
1648         $self->deindent;
1649         $self->pidl("} else {");
1650         $self->indent;
1651         $self->pidl("PyErr_Format(PyExc_TypeError, \"Expected string or unicode object, got %s\", Py_TYPE($py_var)->tp_name);");
1652         $self->pidl("$fail");
1653         $self->deindent;
1654         $self->pidl("}");
1655         $self->pidl("talloc_str = talloc_strdup($mem_ctx, test_str);");
1656         $self->pidl("if (unicode != NULL) {");
1657         $self->indent;
1658         $self->pidl("Py_DECREF(unicode);");
1659         $self->deindent;
1660         $self->pidl("}");
1661         $self->pidl("if (talloc_str == NULL) {");
1662         $self->indent;
1663         $self->pidl("PyErr_NoMemory();");
1664         $self->pidl("$fail");
1665         $self->deindent;
1666         $self->pidl("}");
1667         $self->pidl("$target = talloc_str;");
1668         $self->deindent;
1669         $self->pidl("}");
1670 }
1671
1672 sub ConvertObjectFromPythonData($$$$$$;$$)
1673 {
1674         my ($self, $mem_ctx, $cvar, $ctype, $target, $fail, $location, $switch) = @_;
1675
1676         fatal($location, "undef type for $cvar") unless(defined($ctype));
1677
1678         $ctype = resolveType($ctype);
1679
1680         my $actual_ctype = $ctype;
1681         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
1682                 $actual_ctype = $actual_ctype->{DATA};
1683         }
1684
1685         # We need to cover ENUMs, BITMAPS and SCALAR values here, as
1686         # all could otherwise be assigned invalid integer values
1687         my $ctype_alias = "";
1688         my $uint_max = "";
1689         if ($actual_ctype->{TYPE} eq "ENUM") {
1690                 # Importantly, ENUM values are unsigned in pidl, and
1691                 # typically map to uint32
1692                 $ctype_alias = enum_type_fn($actual_ctype);
1693         } elsif ($actual_ctype->{TYPE} eq "BITMAP") {
1694                 $ctype_alias = bitmap_type_fn($actual_ctype);
1695         } elsif ($actual_ctype->{TYPE} eq "SCALAR") {
1696                 $ctype_alias = expandAlias($actual_ctype->{NAME});
1697         }
1698
1699         # This is the unsigned Python Integer -> C integer validation
1700         # case.  The signed case is below.
1701         if ($ctype_alias  =~ /^(uint[0-9]*|hyper|udlong|udlongr
1702                                 |NTTIME_hyper|NTTIME|NTTIME_1sec
1703                                 |uid_t|gid_t)$/x) {
1704                 $self->pidl("{");
1705                 $self->indent;
1706                 $self->pidl("const unsigned long long uint_max = ndr_sizeof2uintmax(sizeof($target));");
1707                 $self->pidl("if (PyLong_Check($cvar)) {");
1708                 $self->indent;
1709                 $self->pidl("unsigned long long test_var;");
1710                 $self->pidl("test_var = PyLong_AsUnsignedLongLong($cvar);");
1711                 $self->pidl("if (PyErr_Occurred() != NULL) {");
1712                 $self->indent;
1713                 $self->pidl($fail);
1714                 $self->deindent;
1715                 $self->pidl("}");
1716                 $self->pidl("if (test_var > uint_max) {");
1717                 $self->indent;
1718                 $self->pidl("PyErr_Format(PyExc_OverflowError, \"Expected type %s or %s within range 0 - %llu, got %llu\",\\");
1719                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name, uint_max, test_var);");
1720                 $self->pidl($fail);
1721                 $self->deindent;
1722                 $self->pidl("}");
1723                 $self->pidl("$target = test_var;");
1724                 $self->deindent;
1725                 $self->pidl("} else if (PyInt_Check($cvar)) {");
1726                 $self->indent;
1727                 $self->pidl("long test_var;");
1728                 $self->pidl("test_var = PyInt_AsLong($cvar);");
1729                 $self->pidl("if (test_var < 0 || (unsigned long long)test_var > uint_max) {");
1730                 $self->indent;
1731                 $self->pidl("PyErr_Format(PyExc_OverflowError, \"Expected type %s or %s within range 0 - %llu, got %ld\",\\");
1732                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name, uint_max, test_var);");
1733                 $self->pidl($fail);
1734                 $self->deindent;
1735                 $self->pidl("}");
1736                 $self->pidl("$target = test_var;");
1737                 $self->deindent;
1738                 $self->pidl("} else {");
1739                 $self->indent;
1740                 $self->pidl("PyErr_Format(PyExc_TypeError, \"Expected type %s or %s\",\\");
1741                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name);");
1742                 $self->pidl($fail);
1743                 $self->deindent;
1744                 $self->pidl("}");
1745                 $self->deindent;
1746                 $self->pidl("}");
1747                 return;
1748         }
1749
1750         # Confirm the signed python integer fits in the C type
1751         # correctly.  It is subtly different from the unsigned case
1752         # above, so while it looks like a duplicate, it is not
1753         # actually a duplicate.
1754         if ($ctype_alias  =~ /^(dlong|char|int[0-9]*|time_t)$/x) {
1755                 $self->pidl("{");
1756                 $self->indent;
1757                 $self->pidl("const long long int_max = ndr_sizeof2intmax(sizeof($target));");
1758                 $self->pidl("const long long int_min = -int_max - 1;");
1759                 $self->pidl("if (PyLong_Check($cvar)) {");
1760                 $self->indent;
1761                 $self->pidl("long long test_var;");
1762                 $self->pidl("test_var = PyLong_AsLongLong($cvar);");
1763                 $self->pidl("if (PyErr_Occurred() != NULL) {");
1764                 $self->indent;
1765                 $self->pidl($fail);
1766                 $self->deindent;
1767                 $self->pidl("}");
1768                 $self->pidl("if (test_var < int_min || test_var > int_max) {");
1769                 $self->indent;
1770                 $self->pidl("PyErr_Format(PyExc_OverflowError, \"Expected type %s or %s within range %lld - %lld, got %lld\",\\");
1771                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name, int_min, int_max, test_var);");
1772                 $self->pidl($fail);
1773                 $self->deindent;
1774                 $self->pidl("}");
1775                 $self->pidl("$target = test_var;");
1776                 $self->deindent;
1777                 $self->pidl("} else if (PyInt_Check($cvar)) {");
1778                 $self->indent;
1779                 $self->pidl("long test_var;");
1780                 $self->pidl("test_var = PyInt_AsLong($cvar);");
1781                 $self->pidl("if (test_var < int_min || test_var > int_max) {");
1782                 $self->indent;
1783                 $self->pidl("PyErr_Format(PyExc_OverflowError, \"Expected type %s or %s within range %lld - %lld, got %ld\",\\");
1784                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name, int_min, int_max, test_var);");
1785                 $self->pidl($fail);
1786                 $self->deindent;
1787                 $self->pidl("}");
1788                 $self->pidl("$target = test_var;");
1789                 $self->deindent;
1790                 $self->pidl("} else {");
1791                 $self->indent;
1792                 $self->pidl("PyErr_Format(PyExc_TypeError, \"Expected type %s or %s\",\\");
1793                 $self->pidl("  PyInt_Type.tp_name, PyLong_Type.tp_name);");
1794                 $self->pidl($fail);
1795                 $self->deindent;
1796                 $self->pidl("}");
1797                 $self->deindent;
1798                 $self->pidl("}");
1799                 return;
1800         }
1801
1802         if ($actual_ctype->{TYPE} eq "STRUCT" or $actual_ctype->{TYPE} eq "INTERFACE") {
1803                 my $ctype_name = $self->use_type_variable($ctype);
1804                 unless (defined ($ctype_name)) {
1805                         error($location, "Unable to determine origin of type `" . mapTypeName($ctype) . "'");
1806                         $self->pidl("PyErr_SetString(PyExc_TypeError, \"Can not convert C Type " . mapTypeName($ctype) . " from Python\");");
1807                         return;
1808                 }
1809                 $self->pidl("PY_CHECK_TYPE($ctype_name, $cvar, $fail);");
1810                 $self->pidl("if (talloc_reference($mem_ctx, pytalloc_get_mem_ctx($cvar)) == NULL) {");
1811                 $self->indent;
1812                 $self->pidl("PyErr_NoMemory();");
1813                 $self->pidl("$fail");
1814                 $self->deindent;
1815                 $self->pidl("}");
1816                 $self->assign($target, "(".mapTypeName($ctype)." *)pytalloc_get_ptr($cvar)");
1817                 return;
1818         }
1819
1820         if ($actual_ctype->{TYPE} eq "UNION") {
1821                 my $ctype_name = $self->use_type_variable($ctype);
1822                 unless (defined ($ctype_name)) {
1823                         error($location, "Unable to determine origin of type `" . mapTypeName($ctype) . "'");
1824                         $self->pidl("PyErr_SetString(PyExc_TypeError, \"Can not convert C Type " . mapTypeName($ctype) . " from Python\");");
1825                         return;
1826                 }
1827                 my $export = "pyrpc_export_union($ctype_name, $mem_ctx, $switch, $cvar, \"".mapTypeName($ctype)."\")";
1828                 $self->assign($target, "(".mapTypeName($ctype)." *)$export");
1829                 return;
1830         }
1831
1832         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "DATA_BLOB") {
1833                 $self->pidl("$target = data_blob_talloc($mem_ctx, PyBytes_AS_STRING($cvar), PyBytes_GET_SIZE($cvar));");
1834                 return;
1835         }
1836
1837         if ($actual_ctype->{TYPE} eq "SCALAR" and
1838                 ($actual_ctype->{NAME} eq "string"
1839                  or $actual_ctype->{NAME} eq "nbt_string"
1840                  or $actual_ctype->{NAME} eq "nbt_name"
1841                  or $actual_ctype->{NAME} eq "wrepl_nbt_name"
1842                  or $actual_ctype->{NAME} eq "dns_string"
1843                  or $actual_ctype->{NAME} eq "dnsp_string"
1844                  or $actual_ctype->{NAME} eq "dns_name"
1845                  or $actual_ctype->{NAME} eq "ipv4address"
1846                  or $actual_ctype->{NAME} eq "ipv6address"
1847                  or $actual_ctype->{NAME} eq "dnsp_name")) {
1848                 $self->ConvertStringFromPythonData($mem_ctx, $cvar, $target, $fail);
1849                 return;
1850         }
1851
1852         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "NTSTATUS") {
1853                 $self->pidl("$target = NT_STATUS(PyInt_AsLong($cvar));");
1854                 return;
1855         }
1856
1857         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "WERROR") {
1858                 $self->pidl("$target = W_ERROR(PyInt_AsLong($cvar));");
1859                 return;
1860         }
1861
1862         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "HRESULT") {
1863                 $self->pidl("$target = HRES_ERROR(PyInt_AsLong($cvar));");
1864                 return;
1865         }
1866
1867         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "string_array") {
1868                 $self->pidl("$target = pytalloc_get_ptr($cvar);");
1869                 return;
1870         }
1871
1872         if ($actual_ctype->{TYPE} eq "SCALAR" and $actual_ctype->{NAME} eq "pointer") {
1873                 $self->assign($target, "pytalloc_get_ptr($cvar)");
1874                 return;
1875         }
1876
1877         fatal($location, "unknown type `$actual_ctype->{TYPE}' for ".mapTypeName($ctype) . ": $cvar");
1878
1879 }
1880
1881 sub ConvertObjectFromPythonLevel($$$$$$$$$)
1882 {
1883         my ($self, $env, $mem_ctx, $py_var, $e, $l, $var_name, $fail, $recurse) = @_;
1884         my $nl = GetNextLevel($e, $l);
1885         if ($nl and $nl->{TYPE} eq "SUBCONTEXT") {
1886                 $nl = GetNextLevel($e, $nl);
1887         }
1888         my $pl = GetPrevLevel($e, $l);
1889         if ($pl and $pl->{TYPE} eq "SUBCONTEXT") {
1890                 $pl = GetPrevLevel($e, $pl);
1891         }
1892
1893         if ($recurse == 0) {
1894                 $self->pidl("if ($py_var == NULL) {");
1895                 $self->indent;
1896                 $self->pidl("PyErr_Format(PyExc_AttributeError, \"Cannot delete NDR object: " .
1897                     mapTypeName($var_name) . "\");");
1898                 $self->pidl($fail);
1899                 $self->deindent;
1900                 $self->pidl("}");
1901         }
1902         $recurse = $recurse + 1;
1903
1904         if ($l->{TYPE} eq "POINTER") {
1905                 my $need_deindent = 0;
1906                 my $need_deref = 0;
1907
1908                 if ($l->{POINTER_TYPE} ne "ref") {
1909                         $self->pidl("if ($py_var == Py_None) {");
1910                         $self->indent;
1911                         $self->pidl("$var_name = NULL;");
1912                         $self->deindent;
1913                         $self->pidl("} else {");
1914                         $self->indent;
1915                         $need_deindent = 1;
1916                         if ($nl->{TYPE} eq "POINTER") {
1917                                 $need_deref = 1;
1918                         }
1919                 }
1920
1921                 if ($l->{POINTER_TYPE} eq "ref" or $need_deref == 1) {
1922                         $self->pidl("$var_name = talloc_ptrtype($mem_ctx, $var_name);");
1923                         $self->pidl("if ($var_name == NULL) {");
1924                         $self->indent;
1925                         $self->pidl("PyErr_NoMemory();");
1926                         $self->pidl($fail);
1927                         $self->deindent;
1928                         $self->pidl("}");
1929                 } elsif ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::is_scalar($nl->{DATA_TYPE})
1930                          and not Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
1931                         $self->pidl("$var_name = talloc_ptrtype($mem_ctx, $var_name);");
1932                         $self->pidl("if ($var_name == NULL) {");
1933                         $self->indent;
1934                         $self->pidl("PyErr_NoMemory();");
1935                         $self->pidl($fail);
1936                         $self->deindent;
1937                         $self->pidl("}");
1938                 } else {
1939                         $self->pidl("$var_name = NULL;");
1940                 }
1941                 if ($need_deref == 1) {
1942                         my $ndr_pointer_typename = $self->import_type_variable("samba.dcerpc.base", "ndr_pointer");
1943                         $self->pidl("$py_var = py_dcerpc_ndr_pointer_deref($ndr_pointer_typename, $py_var);");
1944                 }
1945                 unless ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
1946                         $var_name = get_value_of($var_name);
1947                 }
1948                 $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, $nl, $var_name, $fail, $recurse);
1949                 if ($need_deindent == 1) {
1950                         $self->deindent;
1951                         $self->pidl("}");
1952                 }
1953         } elsif ($l->{TYPE} eq "ARRAY") {
1954                 if ($pl && $pl->{TYPE} eq "POINTER") {
1955                         $var_name = get_pointer_to($var_name);
1956                 }
1957
1958                 if (is_charset_array($e, $l)) {
1959                         $self->ConvertStringFromPythonData($mem_ctx, $py_var, $var_name, $fail);
1960                 } else {
1961                         my $counter = "$e->{NAME}_cntr_$l->{LEVEL_INDEX}";
1962                         $self->pidl("PY_CHECK_TYPE(&PyList_Type, $py_var, $fail);");
1963                         $self->pidl("{");
1964                         $self->indent;
1965                         $self->pidl("int $counter;");
1966                         if (ArrayDynamicallyAllocated($e, $l)) {
1967                                 $self->pidl("$var_name = talloc_array_ptrtype($mem_ctx, $var_name, PyList_GET_SIZE($py_var));");
1968                                 $self->pidl("if (!$var_name) { $fail; }");
1969                                 $self->pidl("talloc_set_name_const($var_name, \"ARRAY: $var_name\");");
1970                         } else {
1971                                 $self->pidl("if (ARRAY_SIZE($var_name) != PyList_GET_SIZE($py_var)) {");
1972                                 $self->indent;
1973                                 $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));");
1974                                 $self->pidl("$fail");
1975                                 $self->deindent;
1976                                 $self->pidl("}");
1977                         }
1978                         $self->pidl("for ($counter = 0; $counter < PyList_GET_SIZE($py_var); $counter++) {");
1979                         $self->indent;
1980                         $self->ConvertObjectFromPythonLevel($env, $var_name, "PyList_GET_ITEM($py_var, $counter)", $e, $nl, $var_name."[$counter]", $fail, 0);
1981                         $self->deindent;
1982                         $self->pidl("}");
1983                         $self->deindent;
1984                         $self->pidl("}");
1985                 }
1986         } elsif ($l->{TYPE} eq "DATA") {
1987                 if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE})) {
1988                         $var_name = get_pointer_to($var_name);
1989                 }
1990                 $self->ConvertObjectFromPythonData($mem_ctx, $py_var, $l->{DATA_TYPE}, $var_name, $fail, $e->{ORIGINAL});
1991         } elsif ($l->{TYPE} eq "SWITCH") {
1992                 $var_name = get_pointer_to($var_name);
1993                 my $switch = ParseExpr($l->{SWITCH_IS}, $env, $e);
1994                 my $switch_ptr = "$e->{NAME}_switch_$l->{LEVEL_INDEX}";
1995                 $self->pidl("{");
1996                 $self->indent;
1997                 my $union_type = mapTypeName($nl->{DATA_TYPE});
1998                 $self->pidl("$union_type *$switch_ptr;");
1999                 $self->ConvertObjectFromPythonData($mem_ctx, $py_var, $nl->{DATA_TYPE}, $switch_ptr, $fail, $e->{ORIGINAL}, $switch);
2000                 $self->fail_on_null($switch_ptr, $fail);
2001                 $self->assign($var_name, "$switch_ptr");
2002                 $self->deindent;
2003                 $self->pidl("}");
2004         } elsif ($l->{TYPE} eq "SUBCONTEXT") {
2005                 $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $py_var, $e, $nl, $var_name, $fail, $recurse);
2006         } else {
2007                 fatal($e->{ORIGINAL}, "unknown level type $l->{TYPE}");
2008         }
2009 }
2010
2011 sub ConvertObjectFromPython($$$$$$$)
2012 {
2013         my ($self, $env, $mem_ctx, $ctype, $cvar, $target, $fail) = @_;
2014         my $recurse = 0;
2015
2016         $self->ConvertObjectFromPythonLevel($env, $mem_ctx, $cvar, $ctype, $ctype->{LEVELS}[0], $target, $fail, $recurse);
2017 }
2018
2019 sub ConvertScalarToPython($$$$)
2020 {
2021         my ($self, $ctypename, $cvar, $mem_ctx) = @_;
2022
2023         die("expected string for $cvar, not $ctypename") if (ref($ctypename) eq "HASH");
2024
2025         $ctypename = expandAlias($ctypename);
2026
2027         if ($ctypename =~ /^(int64|dlong)$/) {
2028                 return "PyLong_FromLongLong($cvar)";
2029         }
2030
2031         if ($ctypename =~ /^(uint64|hyper|NTTIME_hyper|NTTIME|NTTIME_1sec|udlong|udlongr|uid_t|gid_t)$/) {
2032                 return "PyLong_FromUnsignedLongLong($cvar)";
2033         }
2034
2035         if ($ctypename =~ /^(char|int|int8|int16|int32|time_t)$/) {
2036                 return "PyInt_FromLong($cvar)";
2037         }
2038
2039         # Needed to ensure unsigned values in a 32 or 16 bit enum is
2040         # cast correctly to a uint32_t, not sign extended to a a
2041         # possibly 64 bit unsigned long.  (enums are signed in C,
2042         # unsigned in NDR)
2043         if ($ctypename =~ /^(uint32|uint3264)$/) {
2044                 return "PyLong_FromUnsignedLongLong((uint32_t)$cvar)";
2045         }
2046
2047         if ($ctypename =~ /^(uint|uint8|uint16|uint1632)$/) {
2048                 return "PyInt_FromLong((uint16_t)$cvar)";
2049         }
2050
2051         if ($ctypename eq "DATA_BLOB") {
2052                 return "PyBytes_FromStringAndSize((char *)($cvar).data, ($cvar).length)";
2053         }
2054
2055         if ($ctypename eq "NTSTATUS") {
2056                 return "PyErr_FromNTSTATUS($cvar)";
2057         }
2058
2059         if ($ctypename eq "WERROR") {
2060                 return "PyErr_FromWERROR($cvar)";
2061         }
2062
2063         if ($ctypename eq "HRESULT") {
2064                 return "PyErr_FromHRESULT($cvar)";
2065         }
2066
2067         if (($ctypename eq "string" or $ctypename eq "nbt_string" or $ctypename eq "nbt_name" or $ctypename eq "wrepl_nbt_name")) {
2068                 return "PyString_FromStringOrNULL($cvar)";
2069         }
2070
2071         if (($ctypename eq "dns_string" or $ctypename eq "dns_name")) {
2072                 return "PyString_FromStringOrNULL($cvar)";
2073         }
2074
2075         # Not yet supported
2076         if ($ctypename eq "string_array") {
2077                 return "pytalloc_GenericObject_reference_ex($mem_ctx, $cvar)";
2078         }
2079         if ($ctypename eq "ipv4address") { return "PyString_FromStringOrNULL($cvar)"; }
2080         if ($ctypename eq "ipv6address") { return "PyString_FromStringOrNULL($cvar)"; }
2081         if ($ctypename eq "dnsp_name") { return "PyString_FromStringOrNULL($cvar)"; }
2082         if ($ctypename eq "dnsp_string") { return "PyString_FromStringOrNULL($cvar)"; }
2083         if ($ctypename eq "pointer") {
2084                 return "pytalloc_GenericObject_reference_ex($mem_ctx, $cvar)";
2085         }
2086
2087         die("Unknown scalar type $ctypename");
2088 }
2089
2090 sub ConvertObjectToPythonData($$$$$;$$)
2091 {
2092         my ($self, $mem_ctx, $ctype, $cvar, $location, $switch) = @_;
2093
2094         die("undef type for $cvar") unless(defined($ctype));
2095
2096         $ctype = resolveType($ctype);
2097
2098         my $actual_ctype = $ctype;
2099         if ($actual_ctype->{TYPE} eq "TYPEDEF") {
2100                 $actual_ctype = $actual_ctype->{DATA};
2101         }
2102
2103         if ($actual_ctype->{TYPE} eq "ENUM") {
2104                 return $self->ConvertScalarToPython(Parse::Pidl::Typelist::enum_type_fn($actual_ctype), $cvar, $mem_ctx);
2105         } elsif ($actual_ctype->{TYPE} eq "BITMAP") {
2106                 return $self->ConvertScalarToPython(Parse::Pidl::Typelist::bitmap_type_fn($actual_ctype), $cvar, $mem_ctx);
2107         } elsif ($actual_ctype->{TYPE} eq "SCALAR") {
2108                 return $self->ConvertScalarToPython($actual_ctype->{NAME}, $cvar, $mem_ctx);
2109         } elsif ($actual_ctype->{TYPE} eq "UNION") {
2110                 my $ctype_name = $self->use_type_variable($ctype);
2111                 unless (defined($ctype_name)) {
2112                         error($location, "Unable to determine origin of type `" . mapTypeName($ctype) . "'");
2113                         return "NULL"; # FIXME!
2114                 }
2115                 return "pyrpc_import_union($ctype_name, $mem_ctx, $switch, $cvar, \"".mapTypeName($ctype)."\")";
2116         } elsif ($actual_ctype->{TYPE} eq "STRUCT" or $actual_ctype->{TYPE} eq "INTERFACE") {
2117                 my $ctype_name = $self->use_type_variable($ctype);
2118                 unless (defined($ctype_name)) {
2119                         error($location, "Unable to determine origin of type `" . mapTypeName($ctype) . "'");
2120                         return "NULL"; # FIXME!
2121                 }
2122                 return "pytalloc_reference_ex($ctype_name, $mem_ctx, $cvar)";
2123         }
2124
2125         fatal($location, "unknown type $actual_ctype->{TYPE} for ".mapTypeName($ctype) . ": $cvar");
2126 }
2127
2128 sub fail_on_null($$$)
2129 {
2130         my ($self, $var, $fail) = @_;
2131         $self->pidl("if ($var == NULL) {");
2132         $self->indent;
2133         $self->pidl($fail);
2134         $self->deindent;
2135         $self->pidl("}");
2136 }
2137
2138 sub ConvertObjectToPythonLevel($$$$$$$)
2139 {
2140         my ($self, $mem_ctx, $env, $e, $l, $var_name, $py_var, $fail, $recurse) = @_;
2141         my $nl = GetNextLevel($e, $l);
2142         if ($nl and $nl->{TYPE} eq "SUBCONTEXT") {
2143                 $nl = GetNextLevel($e, $nl);
2144         }
2145         my $pl = GetPrevLevel($e, $l);
2146         if ($pl and $pl->{TYPE} eq "SUBCONTEXT") {
2147                 $pl = GetPrevLevel($e, $pl);
2148         }
2149
2150         if ($l->{TYPE} eq "POINTER") {
2151                 my $need_wrap = 0;
2152                 if ($l->{POINTER_TYPE} ne "ref" and $nl->{TYPE} eq "POINTER") {
2153                         $need_wrap = 1;
2154                 }
2155                 if ($l->{POINTER_TYPE} ne "ref") {
2156                         if ($recurse == 0) {
2157                                 $self->pidl("if ($var_name == NULL) {");
2158                                 $self->indent;
2159                                 $self->pidl("$py_var = Py_None;");
2160                                 $self->pidl("Py_INCREF($py_var);");
2161                                 $self->deindent;
2162                                 $self->pidl("} else {");
2163                                 $self->indent;
2164                         } else {
2165                                 $self->pidl("{");
2166                                 $self->indent;
2167                         }
2168                         $recurse = $recurse + 1;
2169                 }
2170                 my $var_name2 = $var_name;
2171                 my $recurse2 = $recurse;
2172                 unless ($nl->{TYPE} eq "DATA" and Parse::Pidl::Typelist::scalar_is_reference($nl->{DATA_TYPE})) {
2173                         $var_name2 = get_value_of($var_name);
2174                         $recurse2 = 0;
2175                 }
2176                 $self->ConvertObjectToPythonLevel($var_name, $env, $e, $nl, $var_name2, $py_var, $fail, $recurse2);
2177                 if ($l->{POINTER_TYPE} ne "ref") {
2178                         $self->deindent;
2179                         $self->pidl("}");
2180                 }
2181                 if ($need_wrap) {
2182                         my $py_var_wrap = undef;
2183                         $need_wrap = 1;
2184                         $self->pidl("{");
2185                         $self->indent;
2186                         $py_var_wrap = "py_$e->{NAME}_level_$l->{LEVEL_INDEX}";
2187                         $self->pidl("PyObject *$py_var_wrap = $py_var;");
2188                         my $ndr_pointer_typename = $self->import_type_variable("samba.dcerpc.base", "ndr_pointer");
2189                         $self->pidl("$py_var = py_dcerpc_ndr_pointer_wrap($ndr_pointer_typename, $py_var_wrap);");
2190                         $self->pidl("Py_XDECREF($py_var_wrap);");
2191                         $self->deindent;
2192                         $self->pidl("}");
2193                 }
2194         } elsif ($l->{TYPE} eq "ARRAY") {
2195                 if ($pl && $pl->{TYPE} eq "POINTER") {
2196                         $var_name = get_pointer_to($var_name);
2197                 }
2198
2199                 if (is_charset_array($e, $l)) {
2200                         # FIXME: Use Unix charset setting rather than utf-8
2201                         $self->pidl("if ($var_name == NULL) {");
2202                         $self->indent;
2203                         $self->pidl("$py_var = Py_None;");
2204                         $self->pidl("Py_INCREF($py_var);");
2205                         $self->deindent;
2206                         $self->pidl("} else {");
2207                         $self->indent;
2208                         $self->pidl("$py_var = PyUnicode_Decode($var_name, strlen($var_name), \"utf-8\", \"ignore\");");
2209                         $self->deindent;
2210                         $self->pidl("}");
2211                 } else {
2212                         die("No SIZE_IS for array $var_name") unless (defined($l->{SIZE_IS}));
2213                         my $length = $l->{SIZE_IS};
2214                         if (defined($l->{LENGTH_IS})) {
2215                                 $length = $l->{LENGTH_IS};
2216                         }
2217
2218                         $length = ParseExpr($length, $env, $e);
2219                         $self->pidl("$py_var = PyList_New($length);");
2220                         $self->fail_on_null($py_var, $fail);
2221                         $self->pidl("{");
2222                         $self->indent;
2223                         my $counter = "$e->{NAME}_cntr_$l->{LEVEL_INDEX}";
2224                         $self->pidl("int $counter;");
2225                         $self->pidl("for ($counter = 0; $counter < ($length); $counter++) {");
2226                         $self->indent;
2227                         my $member_var = "py_$e->{NAME}_$l->{LEVEL_INDEX}";
2228                         $self->pidl("PyObject *$member_var;");
2229                         $self->ConvertObjectToPythonLevel($var_name, $env, $e, $nl, $var_name."[$counter]", $member_var, $fail, $recurse);
2230                         $self->pidl("PyList_SetItem($py_var, $counter, $member_var);");
2231                         $self->deindent;
2232                         $self->pidl("}");
2233                         $self->deindent;
2234                         $self->pidl("}");
2235                 }
2236         } elsif ($l->{TYPE} eq "SWITCH") {
2237                 $var_name = get_pointer_to($var_name);
2238                 my $switch = ParseExpr($l->{SWITCH_IS}, $env, $e);
2239                 my $conv = $self->ConvertObjectToPythonData($mem_ctx, $nl->{DATA_TYPE}, $var_name, $e->{ORIGINAL}, $switch);
2240                 $self->pidl("$py_var = $conv;");
2241                 $self->fail_on_null($py_var, $fail);
2242
2243         } elsif ($l->{TYPE} eq "DATA") {
2244                 if (not Parse::Pidl::Typelist::is_scalar($l->{DATA_TYPE})) {
2245                         $var_name = get_pointer_to($var_name);
2246                 }
2247                 my $conv = $self->ConvertObjectToPythonData($mem_ctx, $l->{DATA_TYPE}, $var_name, $e->{ORIGINAL});
2248                 $self->pidl("$py_var = $conv;");
2249         } elsif ($l->{TYPE} eq "SUBCONTEXT") {
2250                 $self->ConvertObjectToPythonLevel($mem_ctx, $env, $e, $nl, $var_name, $py_var, $fail, $recurse);
2251         } else {
2252                 fatal($e->{ORIGINAL}, "Unknown level type $l->{TYPE} $var_name");
2253         }
2254 }
2255
2256 sub ConvertObjectToPython($$$$$$)
2257 {
2258         my ($self, $mem_ctx, $env, $ctype, $cvar, $py_var, $fail) = @_;
2259         my $recurse = 0;
2260
2261         $self->ConvertObjectToPythonLevel($mem_ctx, $env, $ctype, $ctype->{LEVELS}[0], $cvar, $py_var, $fail, $recurse);
2262 }
2263
2264 sub Parse($$$$$)
2265 {
2266     my($self,$basename,$ndr,$ndr_hdr,$hdr) = @_;
2267
2268         $self->{BASENAME} = $basename;
2269
2270     $self->pidl_hdr("
2271 /* Python wrapper functions auto-generated by pidl */
2272 #define PY_SSIZE_T_CLEAN 1 /* We use Py_ssize_t for PyArg_ParseTupleAndKeywords */
2273 #include <Python.h>
2274 #include \"python/py3compat.h\"
2275 #include \"includes.h\"
2276 #include \"python/modules.h\"
2277 #include <pytalloc.h>
2278 #include \"librpc/rpc/pyrpc.h\"
2279 #include \"librpc/rpc/pyrpc_util.h\"
2280 #include \"$hdr\"
2281 #include \"$ndr_hdr\"
2282
2283 /*
2284  * These functions are here to ensure they can be optimized out by
2285  * the compiler based on the constant input values
2286  */
2287
2288 static inline unsigned long long ndr_sizeof2uintmax(size_t var_size)
2289 {
2290         switch (var_size) {
2291         case 8:
2292                 return UINT64_MAX;
2293         case 4:
2294                 return UINT32_MAX;
2295         case 2:
2296                 return UINT16_MAX;
2297         case 1:
2298                 return UINT8_MAX;
2299         }
2300
2301         return 0;
2302 }
2303
2304 static inline long long ndr_sizeof2intmax(size_t var_size)
2305 {
2306         switch (var_size) {
2307         case 8:
2308                 return INT64_MAX;
2309         case 4:
2310                 return INT32_MAX;
2311         case 2:
2312                 return INT16_MAX;
2313         case 1:
2314                 return INT8_MAX;
2315         }
2316
2317         return 0;
2318 }
2319
2320 ");
2321
2322         foreach my $x (@$ndr) {
2323                 ($x->{TYPE} eq "IMPORT") && $self->Import(@{$x->{PATHS}});
2324             ($x->{TYPE} eq "INTERFACE") && $self->Interface($x, $basename);
2325         }
2326
2327         $self->pidl("static PyMethodDef $basename\_methods[] = {");
2328         $self->indent;
2329         foreach (@{$self->{module_methods}}) {
2330                 my ($fn_name, $pyfn_name, $flags, $doc) = @$_;
2331                 $self->pidl("{ \"$fn_name\", (PyCFunction)$pyfn_name, $flags, $doc },");
2332         }
2333
2334         $self->pidl("{ NULL, NULL, 0, NULL }");
2335         $self->deindent;
2336         $self->pidl("};");
2337
2338         $self->pidl("");
2339
2340         $self->pidl("static struct PyModuleDef moduledef = {");
2341         $self->indent;
2342         $self->pidl("PyModuleDef_HEAD_INIT,");
2343         $self->pidl(".m_name = \"$basename\",");
2344         $self->pidl(".m_doc = \"$basename DCE/RPC\",");
2345         $self->pidl(".m_size = -1,");
2346         $self->pidl(".m_methods = $basename\_methods,");
2347         $self->deindent;
2348         $self->pidl("};");
2349
2350         $self->pidl("MODULE_INIT_FUNC($basename)");
2351         $self->pidl("{");
2352         $self->indent;
2353         $self->pidl("PyObject *m = NULL;");
2354         foreach my $h (@{$self->{module_imports}}) {
2355                 $self->pidl("PyObject *$h->{'key'} = NULL;");
2356         }
2357         $self->pidl("");
2358
2359         foreach my $h (@{$self->{module_imports}}) {
2360                 my $var_name = $h->{'key'};
2361                 my $module_path = $h->{'val'};
2362                 $self->pidl("$var_name = PyImport_ImportModule(\"$module_path\");");
2363                 $self->pidl("if ($var_name == NULL)");
2364                 $self->pidl("\tgoto out;");
2365                 $self->pidl("");
2366         }
2367
2368         foreach my $h (@{$self->{type_imports}}) {
2369                 my $type_var = "$h->{'key'}\_Type";
2370                 my $module_path = $h->{'val'};
2371                 $self->pidl_hdr("static PyTypeObject *$type_var;\n");
2372                 my $pretty_name = PrettifyTypeName($h->{'key'}, $module_path);
2373                 my $module_var = "dep_$module_path";
2374                 $module_var =~ s/\./_/g;
2375                 $self->pidl("$type_var = (PyTypeObject *)PyObject_GetAttrString($module_var, \"$pretty_name\");");
2376                 $self->pidl("if ($type_var == NULL)");
2377                 $self->pidl("\tgoto out;");
2378                 $self->pidl("");
2379         }
2380
2381         $self->pidl($_) foreach (@{$self->{prereadycode}});
2382
2383         foreach (@{$self->{ready_types}}) {
2384                 $self->pidl("if (PyType_Ready($_) < 0)");
2385                 $self->pidl("\tgoto out;");
2386         }
2387
2388         $self->pidl($_) foreach (@{$self->{postreadycode}});
2389
2390         foreach (@{$self->{patch_type_calls}}) {
2391                 my ($typename, $cvar) = @$_;
2392                 $self->pidl("#ifdef PY_".uc($typename)."_PATCH");
2393                 $self->pidl("PY_".uc($typename)."_PATCH($cvar);");
2394                 $self->pidl("#endif");
2395         }
2396
2397         $self->pidl("");
2398
2399         $self->pidl("m = PyModule_Create(&moduledef);");
2400         $self->pidl("if (m == NULL)");
2401         $self->pidl("\tgoto out;");
2402         $self->pidl("");
2403         foreach my $h (@{$self->{constants}}) {
2404                 my $pretty_name = PrettifyTypeName($h->{'key'}, $basename);
2405                 my $py_obj;
2406                 my ($ctype, $cvar) = @{$h->{'val'}};
2407                 if ($cvar =~ /^[0-9]+$/ or $cvar =~ /^0x[0-9a-fA-F]+$/) {
2408                         $py_obj = "PyLong_FromUnsignedLongLong($cvar)";
2409                 } elsif ($cvar =~ /^".*"$/) {
2410                         $py_obj = "PyUnicode_FromString($cvar)";
2411                 } else {
2412                         $py_obj = $self->ConvertObjectToPythonData("NULL", expandAlias($ctype), $cvar, undef);
2413                 }
2414
2415                 $self->pidl("PyModule_AddObject(m, \"$pretty_name\", $py_obj);");
2416         }
2417
2418         foreach (@{$self->{module_objects}}) {
2419                 my ($object_name, $c_name) = @$_;
2420                 $self->pidl("Py_INCREF($c_name);");
2421                 $self->pidl("PyModule_AddObject(m, \"$object_name\", $c_name);");
2422         }
2423
2424         $self->pidl("#ifdef PY_MOD_".uc($basename)."_PATCH");
2425         $self->pidl("PY_MOD_".uc($basename)."_PATCH(m);");
2426         $self->pidl("#endif");
2427         $self->pidl("out:");
2428         foreach my $h (@{$self->{module_imports}}) {
2429                 my $mod_var = $h->{'key'};
2430                 $self->pidl("Py_XDECREF($mod_var);");
2431         }
2432         $self->pidl("return m;");
2433         $self->pidl("");
2434         $self->deindent;
2435         $self->pidl("}");
2436     return ($self->{res_hdr} . $self->{res});
2437 }
2438
2439 1;