source4/libnet/py_net.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Samba utility functions
   4
   5    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008-2010
   6    Copyright (C) Kamen Mazdrashki <kamen.mazdrashki@postpath.com> 2009
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include <Python.h>
  23 #include "includes.h"
  24 #include <pyldb.h>
  25 #include <pytalloc.h>
  26 #include "libnet.h"
  27 #include "auth/credentials/pycredentials.h"
  28 #include "libcli/security/security.h"
  29 #include "lib/events/events.h"
  30 #include "param/pyparam.h"
  31 #include "auth/gensec/gensec.h"
  32 #include "librpc/rpc/pyrpc_util.h"
  33 #include "libcli/resolve/resolve.h"
  34 #include "libcli/finddc.h"
  35 #include "dsdb/samdb/samdb.h"
  36 #include "py_net.h"
  37 #include "librpc/rpc/pyrpc_util.h"
  38
  39 void initnet(void);
  40
  41 static void PyErr_SetDsExtendedError(enum drsuapi_DsExtendedError ext_err, const char *error_description)
  42 {
  43         PyObject *error = PyObject_GetAttrString(PyImport_ImportModule("samba"),
  44                                                  "DsExtendedError");
  45         if (error_description == NULL) {
  46                 switch (ext_err) {
  47                         /* Copied out of ndr_drsuapi.c:ndr_print_drsuapi_DsExtendedError() */
  48                         case DRSUAPI_EXOP_ERR_NONE:
  49                                 error_description = "DRSUAPI_EXOP_ERR_NONE";
  50                                 break;
  51                         case DRSUAPI_EXOP_ERR_SUCCESS:
  52                                 error_description = "DRSUAPI_EXOP_ERR_SUCCESS";
  53                                 break;
  54                         case DRSUAPI_EXOP_ERR_UNKNOWN_OP:
  55                                 error_description = "DRSUAPI_EXOP_ERR_UNKNOWN_OP";
  56                                 break;
  57                         case DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER:
  58                                 error_description = "DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER";
  59                                 break;
  60                         case DRSUAPI_EXOP_ERR_UPDATE_ERR:
  61                                 error_description = "DRSUAPI_EXOP_ERR_UPDATE_ERR";
  62                                 break;
  63                         case DRSUAPI_EXOP_ERR_EXCEPTION:
  64                                 error_description = "DRSUAPI_EXOP_ERR_EXCEPTION";
  65                                 break;
  66                         case DRSUAPI_EXOP_ERR_UNKNOWN_CALLER:
  67                                 error_description = "DRSUAPI_EXOP_ERR_UNKNOWN_CALLER";
  68                                 break;
  69                         case DRSUAPI_EXOP_ERR_RID_ALLOC:
  70                                 error_description = "DRSUAPI_EXOP_ERR_RID_ALLOC";
  71                                 break;
  72                         case DRSUAPI_EXOP_ERR_FSMO_OWNER_DELETED:
  73                                 error_description = "DRSUAPI_EXOP_ERR_FSMO_OWNER_DELETED";
  74                                 break;
  75                         case DRSUAPI_EXOP_ERR_FMSO_PENDING_OP:
  76                                 error_description = "DRSUAPI_EXOP_ERR_FMSO_PENDING_OP";
  77                                 break;
  78                         case DRSUAPI_EXOP_ERR_MISMATCH:
  79                                 error_description = "DRSUAPI_EXOP_ERR_MISMATCH";
  80                                 break;
  81                         case DRSUAPI_EXOP_ERR_COULDNT_CONTACT:
  82                                 error_description = "DRSUAPI_EXOP_ERR_COULDNT_CONTACT";
  83                                 break;
  84                         case DRSUAPI_EXOP_ERR_FSMO_REFUSING_ROLES:
  85                                 error_description = "DRSUAPI_EXOP_ERR_FSMO_REFUSING_ROLES";
  86                                 break;
  87                         case DRSUAPI_EXOP_ERR_DIR_ERROR:
  88                                 error_description = "DRSUAPI_EXOP_ERR_DIR_ERROR";
  89                                 break;
  90                         case DRSUAPI_EXOP_ERR_FSMO_MISSING_SETTINGS:
  91                                 error_description = "DRSUAPI_EXOP_ERR_FSMO_MISSING_SETTINGS";
  92                                 break;
  93                         case DRSUAPI_EXOP_ERR_ACCESS_DENIED:
  94                                 error_description = "DRSUAPI_EXOP_ERR_ACCESS_DENIED";
  95                                 break;
  96                         case DRSUAPI_EXOP_ERR_PARAM_ERROR:
  97                                 error_description = "DRSUAPI_EXOP_ERR_PARAM_ERROR";
  98                                 break;
  99                 }
 100         }
 101         PyErr_SetObject(error,
 102                         Py_BuildValue(discard_const_p(char, "(i,s)"),
 103                                       ext_err,
 104                                       error_description));
 105 }
 106
 107 static PyObject *py_net_join_member(py_net_Object *self, PyObject *args, PyObject *kwargs)
 108 {
 109         struct libnet_Join_member r;
 110         int _level = 0;
 111         NTSTATUS status;
 112         PyObject *result;
 113         TALLOC_CTX *mem_ctx;
 114         const char *kwnames[] = { "domain_name", "netbios_name", "level", "machinepass", NULL };
 115
 116         ZERO_STRUCT(r);
 117
 118         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "ssi|z:Join", discard_const_p(char *, kwnames),
 119                                          &r.in.domain_name, &r.in.netbios_name,
 120                                          &_level,
 121                                          &r.in.account_pass)) {
 122                 return NULL;
 123         }
 124         r.in.level = _level;
 125
 126         mem_ctx = talloc_new(self->mem_ctx);
 127         if (mem_ctx == NULL) {
 128                 PyErr_NoMemory();
 129                 return NULL;
 130         }
 131
 132         status = libnet_Join_member(self->libnet_ctx, mem_ctx, &r);
 133         if (NT_STATUS_IS_ERR(status)) {
 134                 PyErr_SetNTSTATUS_and_string(status,
 135                                              r.out.error_string
 136                                              ? r.out.error_string
 137                                              : nt_errstr(status));
 138                 talloc_free(mem_ctx);
 139                 return NULL;
 140         }
 141
 142         result = Py_BuildValue("sss", r.out.join_password,
 143                                dom_sid_string(mem_ctx, r.out.domain_sid),
 144                                r.out.domain_name);
 145
 146         talloc_free(mem_ctx);
 147
 148         return result;
 149 }
 150
 151 static const char py_net_join_member_doc[] = "join_member(domain_name, netbios_name, level) -> (join_password, domain_sid, domain_name)\n\n" \
 152 "Join the domain with the specified name.";
 153
 154 static PyObject *py_net_change_password(py_net_Object *self, PyObject *args, PyObject *kwargs)
 155 {
 156         union libnet_ChangePassword r;
 157         NTSTATUS status;
 158         TALLOC_CTX *mem_ctx;
 159         struct tevent_context *ev;
 160         const char *kwnames[] = { "newpassword", NULL };
 161
 162         ZERO_STRUCT(r);
 163
 164         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s:change_password",
 165                                         discard_const_p(char *, kwnames),
 166                                         &r.generic.in.newpassword)) {
 167                 return NULL;
 168         }
 169
 170         r.generic.level = LIBNET_CHANGE_PASSWORD_GENERIC;
 171         r.generic.in.account_name = cli_credentials_get_username(self->libnet_ctx->cred);
 172         r.generic.in.domain_name = cli_credentials_get_domain(self->libnet_ctx->cred);
 173         r.generic.in.oldpassword = cli_credentials_get_password(self->libnet_ctx->cred);
 174
 175         /* FIXME: we really need to get a context from the caller or we may end
 176          * up with 2 event contexts */
 177         ev = s4_event_context_init(NULL);
 178
 179         mem_ctx = talloc_new(ev);
 180         if (mem_ctx == NULL) {
 181                 PyErr_NoMemory();
 182                 return NULL;
 183         }
 184
 185         status = libnet_ChangePassword(self->libnet_ctx, mem_ctx, &r);
 186         if (NT_STATUS_IS_ERR(status)) {
 187                 PyErr_SetNTSTATUS_and_string(status,
 188                                              r.generic.out.error_string
 189                                              ? r.generic.out.error_string
 190                                              : nt_errstr(status));
 191                 talloc_free(mem_ctx);
 192                 return NULL;
 193         }
 194
 195         talloc_free(mem_ctx);
 196
 197         Py_RETURN_NONE;
 198 }
 199
 200 static const char py_net_change_password_doc[] = "change_password(newpassword) -> True\n\n" \
 201 "Change password for a user. You must supply credential with enough rights to do this.\n\n" \
 202 "Sample usage is:\n" \
 203 "net.change_password(newpassword=<new_password>)\n";
 204
 205
 206 static PyObject *py_net_set_password(py_net_Object *self, PyObject *args, PyObject *kwargs)
 207 {
 208         union libnet_SetPassword r;
 209         NTSTATUS status;
 210         TALLOC_CTX *mem_ctx;
 211         struct tevent_context *ev;
 212         const char *kwnames[] = { "account_name", "domain_name", "newpassword", NULL };
 213
 214         ZERO_STRUCT(r);
 215
 216         r.generic.level = LIBNET_SET_PASSWORD_GENERIC;
 217
 218         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "sss:set_password",
 219                                         discard_const_p(char *, kwnames),
 220                                          &r.generic.in.account_name,
 221                                          &r.generic.in.domain_name,
 222                                          &r.generic.in.newpassword)) {
 223                 return NULL;
 224         }
 225
 226         /* FIXME: we really need to get a context from the caller or we may end
 227          * up with 2 event contexts */
 228         ev = s4_event_context_init(NULL);
 229
 230         mem_ctx = talloc_new(ev);
 231         if (mem_ctx == NULL) {
 232                 PyErr_NoMemory();
 233                 return NULL;
 234         }
 235
 236         status = libnet_SetPassword(self->libnet_ctx, mem_ctx, &r);
 237         if (NT_STATUS_IS_ERR(status)) {
 238                 PyErr_SetNTSTATUS_and_string(status,
 239                                              r.generic.out.error_string
 240                                              ? r.generic.out.error_string
 241                                              : nt_errstr(status));
 242                 talloc_free(mem_ctx);
 243                 return NULL;
 244         }
 245
 246         talloc_free(mem_ctx);
 247
 248         Py_RETURN_NONE;
 249 }
 250
 251 static const char py_net_set_password_doc[] = "set_password(account_name, domain_name, newpassword) -> True\n\n" \
 252 "Set password for a user. You must supply credential with enough rights to do this.\n\n" \
 253 "Sample usage is:\n" \
 254 "net.set_password(account_name=account_name, domain_name=domain_name, newpassword=new_pass)\n";
 255
 256
 257 static PyObject *py_net_time(py_net_Object *self, PyObject *args, PyObject *kwargs)
 258 {
 259         const char *kwnames[] = { "server_name", NULL };
 260         union libnet_RemoteTOD r;
 261         NTSTATUS status;
 262         TALLOC_CTX *mem_ctx;
 263         char timestr[64];
 264         PyObject *ret;
 265         struct tm *tm;
 266
 267         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s",
 268                 discard_const_p(char *, kwnames), &r.generic.in.server_name))
 269                 return NULL;
 270
 271         r.generic.level                 = LIBNET_REMOTE_TOD_GENERIC;
 272
 273         mem_ctx = talloc_new(NULL);
 274         if (mem_ctx == NULL) {
 275                 PyErr_NoMemory();
 276                 return NULL;
 277         }
 278
 279         status = libnet_RemoteTOD(self->libnet_ctx, mem_ctx, &r);
 280         if (!NT_STATUS_IS_OK(status)) {
 281                 PyErr_SetNTSTATUS_and_string(status,
 282                                              r.generic.out.error_string
 283                                              ? r.generic.out.error_string
 284                                              : nt_errstr(status));
 285                 talloc_free(mem_ctx);
 286                 return NULL;
 287         }
 288
 289         ZERO_STRUCT(timestr);
 290         tm = localtime(&r.generic.out.time);
 291         strftime(timestr, sizeof(timestr)-1, "%c %Z",tm);
 292
 293         ret = PyString_FromString(timestr);
 294
 295         talloc_free(mem_ctx);
 296
 297         return ret;
 298 }
 299
 300 static const char py_net_time_doc[] = "time(server_name) -> timestr\n"
 301 "Retrieve the remote time on a server";
 302
 303 static PyObject *py_net_user_create(py_net_Object *self, PyObject *args, PyObject *kwargs)
 304 {
 305         const char *kwnames[] = { "username", NULL };
 306         NTSTATUS status;
 307         TALLOC_CTX *mem_ctx;
 308         struct libnet_CreateUser r;
 309
 310         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s", discard_const_p(char *, kwnames),
 311                                                                          &r.in.user_name))
 312                 return NULL;
 313
 314         r.in.domain_name = cli_credentials_get_domain(self->libnet_ctx->cred);
 315
 316         mem_ctx = talloc_new(NULL);
 317         if (mem_ctx == NULL) {
 318                 PyErr_NoMemory();
 319                 return NULL;
 320         }
 321
 322         status = libnet_CreateUser(self->libnet_ctx, mem_ctx, &r);
 323         if (!NT_STATUS_IS_OK(status)) {
 324                 PyErr_SetNTSTATUS_and_string(status,
 325                                              r.out.error_string
 326                                              ? r.out.error_string
 327                                              : nt_errstr(status));
 328                 talloc_free(mem_ctx);
 329                 return NULL;
 330         }
 331
 332         talloc_free(mem_ctx);
 333
 334         Py_RETURN_NONE;
 335 }
 336
 337 static const char py_net_create_user_doc[] = "create_user(username)\n"
 338 "Create a new user.";
 339
 340 static PyObject *py_net_user_delete(py_net_Object *self, PyObject *args, PyObject *kwargs)
 341 {
 342         const char *kwnames[] = { "username", NULL };
 343         NTSTATUS status;
 344         TALLOC_CTX *mem_ctx;
 345         struct libnet_DeleteUser r;
 346
 347         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s", discard_const_p(char *, kwnames),
 348                                                                          &r.in.user_name))
 349                 return NULL;
 350
 351         r.in.domain_name = cli_credentials_get_domain(self->libnet_ctx->cred);
 352
 353         mem_ctx = talloc_new(NULL);
 354         if (mem_ctx == NULL) {
 355                 PyErr_NoMemory();
 356                 return NULL;
 357         }
 358
 359         status = libnet_DeleteUser(self->libnet_ctx, mem_ctx, &r);
 360         if (!NT_STATUS_IS_OK(status)) {
 361                 PyErr_SetNTSTATUS_and_string(status,
 362                                            r.out.error_string
 363                                           ? r.out.error_string
 364                                           : nt_errstr(status));
 365                 talloc_free(mem_ctx);
 366                 return NULL;
 367         }
 368
 369         talloc_free(mem_ctx);
 370
 371         Py_RETURN_NONE;
 372 }
 373
 374 static const char py_net_delete_user_doc[] = "delete_user(username)\n"
 375 "Delete a user.";
 376
 377 struct replicate_state {
 378         void *vampire_state;
 379         dcerpc_InterfaceObject *drs_pipe;
 380         struct libnet_BecomeDC_StoreChunk chunk;
 381         DATA_BLOB gensec_skey;
 382         struct libnet_BecomeDC_Partition partition;
 383         struct libnet_BecomeDC_Forest forest;
 384         struct libnet_BecomeDC_DestDSA dest_dsa;
 385 };
 386
 387 /*
 388   setup for replicate_chunk() calls
 389  */
 390 static PyObject *py_net_replicate_init(py_net_Object *self, PyObject *args, PyObject *kwargs)
 391 {
 392         const char *kwnames[] = { "samdb", "lp", "drspipe", "invocation_id", NULL };
 393         PyObject *py_ldb, *py_lp, *py_drspipe, *py_invocation_id;
 394         struct ldb_context *samdb;
 395         struct loadparm_context *lp;
 396         struct replicate_state *s;
 397         NTSTATUS status;
 398
 399         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OOOO",
 400                                          discard_const_p(char *, kwnames),
 401                                          &py_ldb, &py_lp, &py_drspipe,
 402                                          &py_invocation_id)) {
 403                 return NULL;
 404         }
 405
 406         s = talloc_zero(NULL, struct replicate_state);
 407         if (!s) return NULL;
 408
 409         lp = lpcfg_from_py_object(s, py_lp);
 410         if (lp == NULL) {
 411                 PyErr_SetString(PyExc_TypeError, "Expected lp object");
 412                 talloc_free(s);
 413                 return NULL;
 414         }
 415
 416         samdb = pyldb_Ldb_AsLdbContext(py_ldb);
 417         if (samdb == NULL) {
 418                 PyErr_SetString(PyExc_TypeError, "Expected ldb object");
 419                 talloc_free(s);
 420                 return NULL;
 421         }
 422         if (!py_check_dcerpc_type(py_invocation_id, "samba.dcerpc.misc", "GUID")) {
 423
 424                 talloc_free(s);
 425                 return NULL;
 426         }
 427         s->dest_dsa.invocation_id = *pytalloc_get_type(py_invocation_id, struct GUID);
 428
 429         s->drs_pipe = (dcerpc_InterfaceObject *)(py_drspipe);
 430
 431         s->vampire_state = libnet_vampire_replicate_init(s, samdb, lp);
 432         if (s->vampire_state == NULL) {
 433                 PyErr_SetString(PyExc_TypeError, "Failed to initialise vampire_state");
 434                 talloc_free(s);
 435                 return NULL;
 436         }
 437
 438         status = gensec_session_key(s->drs_pipe->pipe->conn->security_state.generic_state,
 439                                     s,
 440                                     &s->gensec_skey);
 441         if (!NT_STATUS_IS_OK(status)) {
 442                 char *error_string = talloc_asprintf(s,
 443                                                      "Unable to get session key from drspipe: %s",
 444                                                      nt_errstr(status));
 445                 PyErr_SetNTSTATUS_and_string(status, error_string);
 446                 talloc_free(s);
 447                 return NULL;
 448         }
 449
 450         s->forest.dns_name = samdb_dn_to_dns_domain(s, ldb_get_root_basedn(samdb));
 451         s->forest.root_dn_str = ldb_dn_get_linearized(ldb_get_root_basedn(samdb));
 452         s->forest.config_dn_str = ldb_dn_get_linearized(ldb_get_config_basedn(samdb));
 453         s->forest.schema_dn_str = ldb_dn_get_linearized(ldb_get_schema_basedn(samdb));
 454
 455         s->chunk.gensec_skey = &s->gensec_skey;
 456         s->chunk.partition = &s->partition;
 457         s->chunk.forest = &s->forest;
 458         s->chunk.dest_dsa = &s->dest_dsa;
 459
 460         return pytalloc_CObject_FromTallocPtr(s);
 461 }
 462
 463
 464 /*
 465   process one replication chunk
 466  */
 467 static PyObject *py_net_replicate_chunk(py_net_Object *self, PyObject *args, PyObject *kwargs)
 468 {
 469         const char *kwnames[] = { "state", "level", "ctr",
 470                                   "schema", "req_level", "req",
 471                                   NULL };
 472         PyObject *py_state, *py_ctr, *py_schema = Py_None, *py_req = Py_None;
 473         struct replicate_state *s;
 474         unsigned level;
 475         unsigned req_level = 0;
 476         WERROR (*chunk_handler)(void *private_data, const struct libnet_BecomeDC_StoreChunk *c);
 477         WERROR werr;
 478         enum drsuapi_DsExtendedError extended_ret = DRSUAPI_EXOP_ERR_NONE;
 479         enum drsuapi_DsExtendedOperation exop = DRSUAPI_EXOP_NONE;
 480
 481         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OIO|OIO",
 482                                          discard_const_p(char *, kwnames),
 483                                          &py_state, &level, &py_ctr,
 484                                          &py_schema, &req_level, &py_req)) {
 485                 return NULL;
 486         }
 487
 488         s = talloc_get_type(PyCObject_AsVoidPtr(py_state), struct replicate_state);
 489         if (!s) {
 490                 PyErr_SetString(PyExc_TypeError, "Expected replication_state");
 491                 return NULL;
 492         }
 493
 494         switch (level) {
 495         case 1:
 496                 if (!py_check_dcerpc_type(py_ctr, "samba.dcerpc.drsuapi", "DsGetNCChangesCtr1")) {
 497                         return NULL;
 498                 }
 499                 s->chunk.ctr1                         = pytalloc_get_ptr(py_ctr);
 500                 if (s->chunk.ctr1->naming_context != NULL) {
 501                         s->partition.nc = *s->chunk.ctr1->naming_context;
 502                 }
 503                 extended_ret = s->chunk.ctr1->extended_ret;
 504                 s->partition.more_data                = s->chunk.ctr1->more_data;
 505                 s->partition.source_dsa_guid          = s->chunk.ctr1->source_dsa_guid;
 506                 s->partition.source_dsa_invocation_id = s->chunk.ctr1->source_dsa_invocation_id;
 507                 s->partition.highwatermark            = s->chunk.ctr1->new_highwatermark;
 508                 break;
 509         case 6:
 510                 if (!py_check_dcerpc_type(py_ctr, "samba.dcerpc.drsuapi", "DsGetNCChangesCtr6")) {
 511                         return NULL;
 512                 }
 513                 s->chunk.ctr6                         = pytalloc_get_ptr(py_ctr);
 514                 if (s->chunk.ctr6->naming_context != NULL) {
 515                         s->partition.nc = *s->chunk.ctr6->naming_context;
 516                 }
 517                 extended_ret = s->chunk.ctr6->extended_ret;
 518                 s->partition.more_data                = s->chunk.ctr6->more_data;
 519                 s->partition.source_dsa_guid          = s->chunk.ctr6->source_dsa_guid;
 520                 s->partition.source_dsa_invocation_id = s->chunk.ctr6->source_dsa_invocation_id;
 521                 s->partition.highwatermark            = s->chunk.ctr6->new_highwatermark;
 522                 break;
 523         default:
 524                 PyErr_Format(PyExc_TypeError, "Bad level %u in replicate_chunk", level);
 525                 return NULL;
 526         }
 527
 528         s->chunk.req5 = NULL;
 529         s->chunk.req8 = NULL;
 530         s->chunk.req10 = NULL;
 531         if (py_req) {
 532                 switch (req_level) {
 533                 case 0:
 534                         break;
 535                 case 5:
 536                         if (!py_check_dcerpc_type(py_req, "samba.dcerpc.drsuapi", "DsGetNCChangesRequest5")) {
 537                                 return NULL;
 538                         }
 539
 540                         s->chunk.req5 = pytalloc_get_ptr(py_req);
 541                         exop = s->chunk.req5->extended_op;
 542                         break;
 543                 case 8:
 544                         if (!py_check_dcerpc_type(py_req, "samba.dcerpc.drsuapi", "DsGetNCChangesRequest8")) {
 545                                 return NULL;
 546                         }
 547
 548                         s->chunk.req8 = pytalloc_get_ptr(py_req);
 549                         exop = s->chunk.req8->extended_op;
 550                         break;
 551                 case 10:
 552                         if (!py_check_dcerpc_type(py_req, "samba.dcerpc.drsuapi", "DsGetNCChangesRequest10")) {
 553                                 return NULL;
 554                         }
 555
 556                         s->chunk.req10 = pytalloc_get_ptr(py_req);
 557                         exop = s->chunk.req10->extended_op;
 558                         break;
 559                 default:
 560                         PyErr_Format(PyExc_TypeError, "Bad req_level %u in replicate_chunk", req_level);
 561                         return NULL;
 562                 }
 563         }
 564
 565         if (exop != DRSUAPI_EXOP_NONE && extended_ret != DRSUAPI_EXOP_ERR_SUCCESS) {
 566                 PyErr_SetDsExtendedError(extended_ret, NULL);
 567                 return NULL;
 568         }
 569
 570         s->chunk.req_level = req_level;
 571
 572         chunk_handler = libnet_vampire_cb_store_chunk;
 573         if (py_schema) {
 574                 if (!PyBool_Check(py_schema)) {
 575                         PyErr_SetString(PyExc_TypeError, "Expected boolean schema");
 576                         return NULL;
 577                 }
 578                 if (py_schema == Py_True) {
 579                         chunk_handler = libnet_vampire_cb_schema_chunk;
 580                 }
 581         }
 582
 583         s->chunk.ctr_level = level;
 584
 585         werr = chunk_handler(s->vampire_state, &s->chunk);
 586         if (!W_ERROR_IS_OK(werr)) {
 587                 char *error_string
 588                         = talloc_asprintf(NULL,
 589                                           "Failed to process 'chunk' of DRS replicated objects: %s",
 590                                           win_errstr(werr));
 591                 PyErr_SetWERROR_and_string(werr, error_string);
 592                 TALLOC_FREE(error_string);
 593                 return NULL;
 594         }
 595
 596         Py_RETURN_NONE;
 597 }
 598
 599
 600 /*
 601   find a DC given a domain name and server type
 602  */
 603 static PyObject *py_net_finddc(py_net_Object *self, PyObject *args, PyObject *kwargs)
 604 {
 605         const char *domain = NULL, *address = NULL;
 606         unsigned server_type;
 607         NTSTATUS status;
 608         struct finddcs *io;
 609         TALLOC_CTX *mem_ctx;
 610         PyObject *ret;
 611         const char * const kwnames[] = { "flags", "domain", "address", NULL };
 612
 613         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "I|zz",
 614                                          discard_const_p(char *, kwnames),
 615                                          &server_type, &domain, &address)) {
 616                 return NULL;
 617         }
 618
 619         mem_ctx = talloc_new(self->mem_ctx);
 620
 621         io = talloc_zero(mem_ctx, struct finddcs);
 622         if (domain != NULL) {
 623                 io->in.domain_name = domain;
 624         }
 625         if (address != NULL) {
 626                 io->in.server_address = address;
 627         }
 628         io->in.minimum_dc_flags = server_type;
 629
 630         status = finddcs_cldap(io, io,
 631                                lpcfg_resolve_context(self->libnet_ctx->lp_ctx), self->ev);
 632         if (NT_STATUS_IS_ERR(status)) {
 633                 PyErr_SetNTSTATUS(status);
 634                 talloc_free(mem_ctx);
 635                 return NULL;
 636         }
 637
 638         ret = py_return_ndr_struct("samba.dcerpc.nbt", "NETLOGON_SAM_LOGON_RESPONSE_EX",
 639                                    io, &io->out.netlogon.data.nt5_ex);
 640         talloc_free(mem_ctx);
 641
 642         return ret;
 643 }
 644
 645
 646 static const char py_net_replicate_init_doc[] = "replicate_init(samdb, lp, drspipe)\n"
 647                                          "Setup for replicate_chunk calls.";
 648
 649 static const char py_net_replicate_chunk_doc[] = "replicate_chunk(state, level, ctr, schema)\n"
 650                                          "Process replication for one chunk";
 651
 652 static const char py_net_finddc_doc[] = "finddc(flags=server_type, domain=None, address=None)\n"
 653                                          "Find a DC with the specified 'server_type' bits. The 'domain' and/or 'address' have to be used as additional search criteria. Returns the whole netlogon struct";
 654
 655 static PyMethodDef net_obj_methods[] = {
 656         {"join_member", (PyCFunction)py_net_join_member, METH_VARARGS|METH_KEYWORDS, py_net_join_member_doc},
 657         {"change_password", (PyCFunction)py_net_change_password, METH_VARARGS|METH_KEYWORDS, py_net_change_password_doc},
 658         {"set_password", (PyCFunction)py_net_set_password, METH_VARARGS|METH_KEYWORDS, py_net_set_password_doc},
 659         {"time", (PyCFunction)py_net_time, METH_VARARGS|METH_KEYWORDS, py_net_time_doc},
 660         {"create_user", (PyCFunction)py_net_user_create, METH_VARARGS|METH_KEYWORDS, py_net_create_user_doc},
 661         {"delete_user", (PyCFunction)py_net_user_delete, METH_VARARGS|METH_KEYWORDS, py_net_delete_user_doc},
 662         {"replicate_init", (PyCFunction)py_net_replicate_init, METH_VARARGS|METH_KEYWORDS, py_net_replicate_init_doc},
 663         {"replicate_chunk", (PyCFunction)py_net_replicate_chunk, METH_VARARGS|METH_KEYWORDS, py_net_replicate_chunk_doc},
 664         {"finddc", (PyCFunction)py_net_finddc, METH_KEYWORDS, py_net_finddc_doc},
 665         { NULL }
 666 };
 667
 668 static void py_net_dealloc(py_net_Object *self)
 669 {
 670         talloc_free(self->mem_ctx);
 671         PyObject_Del(self);
 672 }
 673
 674 static PyObject *net_obj_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
 675 {
 676         PyObject *py_creds, *py_lp = Py_None;
 677         const char *kwnames[] = { "creds", "lp", "server", NULL };
 678         py_net_Object *ret;
 679         struct loadparm_context *lp;
 680         const char *server_address = NULL;
 681
 682         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|Oz",
 683                                          discard_const_p(char *, kwnames), &py_creds, &py_lp,
 684                                          &server_address))
 685                 return NULL;
 686
 687         ret = PyObject_New(py_net_Object, type);
 688         if (ret == NULL) {
 689                 return NULL;
 690         }
 691
 692         /* FIXME: we really need to get a context from the caller or we may end
 693          * up with 2 event contexts */
 694         ret->ev = s4_event_context_init(NULL);
 695         ret->mem_ctx = talloc_new(ret->ev);
 696
 697         lp = lpcfg_from_py_object(ret->mem_ctx, py_lp);
 698         if (lp == NULL) {
 699                 Py_DECREF(ret);
 700                 return NULL;
 701         }
 702
 703         ret->libnet_ctx = libnet_context_init(ret->ev, lp);
 704         if (ret->libnet_ctx == NULL) {
 705                 PyErr_SetString(PyExc_RuntimeError, "Unable to initialize net");
 706                 Py_DECREF(ret);
 707                 return NULL;
 708         }
 709
 710         ret->libnet_ctx->server_address = server_address;
 711
 712         ret->libnet_ctx->cred = cli_credentials_from_py_object(py_creds);
 713         if (ret->libnet_ctx->cred == NULL) {
 714                 PyErr_SetString(PyExc_TypeError, "Expected credentials object");
 715                 Py_DECREF(ret);
 716                 return NULL;
 717         }
 718
 719         return (PyObject *)ret;
 720 }
 721
 722
 723 PyTypeObject py_net_Type = {
 724         PyObject_HEAD_INIT(NULL) 0,
 725         .tp_name = "net.Net",
 726         .tp_basicsize = sizeof(py_net_Object),
 727         .tp_dealloc = (destructor)py_net_dealloc,
 728         .tp_methods = net_obj_methods,
 729         .tp_new = net_obj_new,
 730 };
 731
 732 void initnet(void)
 733 {
 734         PyObject *m;
 735
 736         if (PyType_Ready(&py_net_Type) < 0)
 737                 return;
 738
 739         m = Py_InitModule3("net", NULL, NULL);
 740         if (m == NULL)
 741                 return;
 742
 743         Py_INCREF(&py_net_Type);
 744         PyModule_AddObject(m, "Net", (PyObject *)&py_net_Type);
 745         PyModule_AddObject(m, "LIBNET_JOINDOMAIN_AUTOMATIC", PyInt_FromLong(LIBNET_JOINDOMAIN_AUTOMATIC));
 746         PyModule_AddObject(m, "LIBNET_JOINDOMAIN_SPECIFIED", PyInt_FromLong(LIBNET_JOINDOMAIN_SPECIFIED));
 747         PyModule_AddObject(m, "LIBNET_JOIN_AUTOMATIC", PyInt_FromLong(LIBNET_JOIN_AUTOMATIC));
 748         PyModule_AddObject(m, "LIBNET_JOIN_SPECIFIED", PyInt_FromLong(LIBNET_JOIN_SPECIFIED));
 749 }