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 "lib/replace/system/python.h"
  23 #include "python/py3compat.h"
  24 #include "includes.h"
  25 #include "python/modules.h"
  26 #include <pyldb.h>
  27 #include <pytalloc.h>
  28 #include "libnet.h"
  29 #include "auth/credentials/pycredentials.h"
  30 #include "libcli/security/security.h"
  31 #include "lib/events/events.h"
  32 #include "param/pyparam.h"
  33 #include "auth/gensec/gensec.h"
  34 #include "librpc/rpc/pyrpc_util.h"
  35 #include "libcli/resolve/resolve.h"
  36 #include "libcli/finddc.h"
  37 #include "dsdb/samdb/samdb.h"
  38 #include "py_net.h"
  39 #include "librpc/rpc/pyrpc_util.h"
  40 #include "libcli/drsuapi/drsuapi.h"
  41
  42 static void PyErr_SetDsExtendedError(enum drsuapi_DsExtendedError ext_err, const char *error_description)
  43 {
  44         PyObject *mod = NULL;
  45         PyObject *error = NULL;
  46         mod = PyImport_ImportModule("samba");
  47         if (mod) {
  48                 error = PyObject_GetAttrString(mod, "DsExtendedError");
  49         }
  50         if (error_description == NULL) {
  51                 switch (ext_err) {
  52                         /* Copied out of ndr_drsuapi.c:ndr_print_drsuapi_DsExtendedError() */
  53                         case DRSUAPI_EXOP_ERR_NONE:
  54                                 error_description = "DRSUAPI_EXOP_ERR_NONE";
  55                                 break;
  56                         case DRSUAPI_EXOP_ERR_SUCCESS:
  57                                 error_description = "DRSUAPI_EXOP_ERR_SUCCESS";
  58                                 break;
  59                         case DRSUAPI_EXOP_ERR_UNKNOWN_OP:
  60                                 error_description = "DRSUAPI_EXOP_ERR_UNKNOWN_OP";
  61                                 break;
  62                         case DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER:
  63                                 error_description = "DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER";
  64                                 break;
  65                         case DRSUAPI_EXOP_ERR_UPDATE_ERR:
  66                                 error_description = "DRSUAPI_EXOP_ERR_UPDATE_ERR";
  67                                 break;
  68                         case DRSUAPI_EXOP_ERR_EXCEPTION:
  69                                 error_description = "DRSUAPI_EXOP_ERR_EXCEPTION";
  70                                 break;
  71                         case DRSUAPI_EXOP_ERR_UNKNOWN_CALLER:
  72                                 error_description = "DRSUAPI_EXOP_ERR_UNKNOWN_CALLER";
  73                                 break;
  74                         case DRSUAPI_EXOP_ERR_RID_ALLOC:
  75                                 error_description = "DRSUAPI_EXOP_ERR_RID_ALLOC";
  76                                 break;
  77                         case DRSUAPI_EXOP_ERR_FSMO_OWNER_DELETED:
  78                                 error_description = "DRSUAPI_EXOP_ERR_FSMO_OWNER_DELETED";
  79                                 break;
  80                         case DRSUAPI_EXOP_ERR_FMSO_PENDING_OP:
  81                                 error_description = "DRSUAPI_EXOP_ERR_FMSO_PENDING_OP";
  82                                 break;
  83                         case DRSUAPI_EXOP_ERR_MISMATCH:
  84                                 error_description = "DRSUAPI_EXOP_ERR_MISMATCH";
  85                                 break;
  86                         case DRSUAPI_EXOP_ERR_COULDNT_CONTACT:
  87                                 error_description = "DRSUAPI_EXOP_ERR_COULDNT_CONTACT";
  88                                 break;
  89                         case DRSUAPI_EXOP_ERR_FSMO_REFUSING_ROLES:
  90                                 error_description = "DRSUAPI_EXOP_ERR_FSMO_REFUSING_ROLES";
  91                                 break;
  92                         case DRSUAPI_EXOP_ERR_DIR_ERROR:
  93                                 error_description = "DRSUAPI_EXOP_ERR_DIR_ERROR";
  94                                 break;
  95                         case DRSUAPI_EXOP_ERR_FSMO_MISSING_SETTINGS:
  96                                 error_description = "DRSUAPI_EXOP_ERR_FSMO_MISSING_SETTINGS";
  97                                 break;
  98                         case DRSUAPI_EXOP_ERR_ACCESS_DENIED:
  99                                 error_description = "DRSUAPI_EXOP_ERR_ACCESS_DENIED";
 100                                 break;
 101                         case DRSUAPI_EXOP_ERR_PARAM_ERROR:
 102                                 error_description = "DRSUAPI_EXOP_ERR_PARAM_ERROR";
 103                                 break;
 104                 }
 105         }
 106         if (error) {
 107                 PyObject *value =
 108                         Py_BuildValue(discard_const_p(char, "(i,s)"),
 109                                       ext_err,
 110                                       error_description);
 111                 PyErr_SetObject(error, value);
 112                 if (value) {
 113                         Py_DECREF(value);
 114                 }
 115                 Py_DECREF(error);
 116         }
 117 }
 118
 119 static PyObject *py_net_join_member(py_net_Object *self, PyObject *args, PyObject *kwargs)
 120 {
 121         struct libnet_Join_member r;
 122         int _level = 0;
 123         NTSTATUS status;
 124         PyObject *result;
 125         TALLOC_CTX *mem_ctx;
 126         const char *kwnames[] = { "domain_name", "netbios_name", "level", "machinepass", NULL };
 127
 128         ZERO_STRUCT(r);
 129
 130         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "ssi|z:Join", discard_const_p(char *, kwnames),
 131                                          &r.in.domain_name, &r.in.netbios_name,
 132                                          &_level,
 133                                          &r.in.account_pass)) {
 134                 return NULL;
 135         }
 136         r.in.level = _level;
 137
 138         mem_ctx = talloc_new(self->mem_ctx);
 139         if (mem_ctx == NULL) {
 140                 PyErr_NoMemory();
 141                 return NULL;
 142         }
 143
 144         status = libnet_Join_member(self->libnet_ctx, mem_ctx, &r);
 145         if (NT_STATUS_IS_ERR(status)) {
 146                 PyErr_SetNTSTATUS_and_string(status,
 147                                              r.out.error_string
 148                                              ? r.out.error_string
 149                                              : nt_errstr(status));
 150                 talloc_free(mem_ctx);
 151                 return NULL;
 152         }
 153
 154         result = Py_BuildValue("sss", r.out.join_password,
 155                                dom_sid_string(mem_ctx, r.out.domain_sid),
 156                                r.out.domain_name);
 157
 158         talloc_free(mem_ctx);
 159
 160         return result;
 161 }
 162
 163 static const char py_net_join_member_doc[] = "join_member(domain_name, netbios_name, level) -> (join_password, domain_sid, domain_name)\n\n" \
 164 "Join the domain with the specified name.";
 165
 166 static PyObject *py_net_change_password(py_net_Object *self, PyObject *args, PyObject *kwargs)
 167 {
 168         union libnet_ChangePassword r;
 169         NTSTATUS status;
 170         TALLOC_CTX *mem_ctx = NULL;
 171         struct tevent_context *ev = NULL;
 172         const char *kwnames[] = { "newpassword", "oldpassword", "domain", "username", NULL };
 173         const char *newpass = NULL;
 174         const char *oldpass = NULL;
 175         ZERO_STRUCT(r);
 176         if (!PyArg_ParseTupleAndKeywords(args, kwargs, PYARG_STR_UNI
 177                                          "|"PYARG_STR_UNI"ss:change_password",
 178                                          discard_const_p(char *, kwnames),
 179                                          "utf8",
 180                                          &newpass,
 181                                          "utf8",
 182                                          &oldpass,
 183                                          &r.generic.in.domain_name,
 184                                          &r.generic.in.account_name)) {
 185                 return NULL;
 186         }
 187
 188         r.generic.in.newpassword = newpass;
 189         r.generic.in.oldpassword = oldpass;
 190
 191         r.generic.level = LIBNET_CHANGE_PASSWORD_GENERIC;
 192         if (r.generic.in.account_name == NULL) {
 193                 r.generic.in.account_name
 194                         = cli_credentials_get_username(self->libnet_ctx->cred);
 195         }
 196         if (r.generic.in.domain_name == NULL) {
 197                 r.generic.in.domain_name
 198                         = cli_credentials_get_domain(self->libnet_ctx->cred);
 199         }
 200         if (r.generic.in.oldpassword == NULL) {
 201                 r.generic.in.oldpassword
 202                         = cli_credentials_get_password(self->libnet_ctx->cred);
 203         }
 204
 205         /* FIXME: we really need to get a context from the caller or we may end
 206          * up with 2 event contexts */
 207         ev = s4_event_context_init(NULL);
 208
 209         mem_ctx = talloc_new(ev);
 210         if (mem_ctx == NULL) {
 211                 PyMem_Free(discard_const_p(char, newpass));
 212                 PyMem_Free(discard_const_p(char, oldpass));
 213                 PyErr_NoMemory();
 214                 return NULL;
 215         }
 216
 217         status = libnet_ChangePassword(self->libnet_ctx, mem_ctx, &r);
 218
 219         PyMem_Free(discard_const_p(char, newpass));
 220         PyMem_Free(discard_const_p(char, oldpass));
 221
 222         if (NT_STATUS_IS_ERR(status)) {
 223                 PyErr_SetNTSTATUS_and_string(status,
 224                                              r.generic.out.error_string
 225                                              ? r.generic.out.error_string
 226                                              : nt_errstr(status));
 227                 talloc_free(mem_ctx);
 228                 return NULL;
 229         }
 230
 231         talloc_free(mem_ctx);
 232         Py_RETURN_NONE;
 233 }
 234
 235 static const char py_net_change_password_doc[] = "change_password(newpassword) -> True\n\n" \
 236 "Change password for a user. You must supply credential with enough rights to do this.\n\n" \
 237 "Sample usage is:\n" \
 238 "net.change_password(newpassword=<new_password>)\n";
 239
 240
 241 static PyObject *py_net_set_password(py_net_Object *self, PyObject *args, PyObject *kwargs)
 242 {
 243         union libnet_SetPassword r;
 244         NTSTATUS status;
 245         TALLOC_CTX *mem_ctx;
 246         struct tevent_context *ev;
 247         const char *kwnames[] = { "account_name", "domain_name", "newpassword", "force_samr_18", NULL };
 248         PyObject *py_force_samr_18 = Py_False;
 249
 250         ZERO_STRUCT(r);
 251
 252         r.generic.level = LIBNET_SET_PASSWORD_GENERIC;
 253
 254         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "sss|O:set_password",
 255                                         discard_const_p(char *, kwnames),
 256                                          &r.generic.in.account_name,
 257                                          &r.generic.in.domain_name,
 258                                          &r.generic.in.newpassword,
 259                                          &py_force_samr_18)) {
 260                 return NULL;
 261         }
 262
 263         if (py_force_samr_18) {
 264                 if (!PyBool_Check(py_force_samr_18)) {
 265                         PyErr_SetString(PyExc_TypeError, "Expected boolean force_samr_18");
 266                         return NULL;
 267                 }
 268                 if (py_force_samr_18 == Py_True) {
 269                         r.generic.samr_level = LIBNET_SET_PASSWORD_SAMR_HANDLE_18;
 270                 }
 271         }
 272
 273         /* FIXME: we really need to get a context from the caller or we may end
 274          * up with 2 event contexts */
 275         ev = s4_event_context_init(NULL);
 276
 277         mem_ctx = talloc_new(ev);
 278         if (mem_ctx == NULL) {
 279                 PyErr_NoMemory();
 280                 return NULL;
 281         }
 282
 283         status = libnet_SetPassword(self->libnet_ctx, mem_ctx, &r);
 284         if (NT_STATUS_IS_ERR(status)) {
 285                 PyErr_SetNTSTATUS_and_string(status,
 286                                              r.generic.out.error_string
 287                                              ? r.generic.out.error_string
 288                                              : nt_errstr(status));
 289                 talloc_free(mem_ctx);
 290                 return NULL;
 291         }
 292
 293         talloc_free(mem_ctx);
 294
 295         Py_RETURN_NONE;
 296 }
 297
 298 static const char py_net_set_password_doc[] = "set_password(account_name, domain_name, newpassword) -> True\n\n" \
 299 "Set password for a user. You must supply credential with enough rights to do this.\n\n" \
 300 "Sample usage is:\n" \
 301 "net.set_password(account_name=account_name, domain_name=domain_name, newpassword=new_pass)\n";
 302
 303
 304 static PyObject *py_net_time(py_net_Object *self, PyObject *args, PyObject *kwargs)
 305 {
 306         const char *kwnames[] = { "server_name", NULL };
 307         union libnet_RemoteTOD r;
 308         NTSTATUS status;
 309         TALLOC_CTX *mem_ctx;
 310         char timestr[64];
 311         PyObject *ret;
 312         struct tm *tm;
 313         size_t len;
 314
 315         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s",
 316                 discard_const_p(char *, kwnames), &r.generic.in.server_name))
 317                 return NULL;
 318
 319         r.generic.level                 = LIBNET_REMOTE_TOD_GENERIC;
 320
 321         mem_ctx = talloc_new(NULL);
 322         if (mem_ctx == NULL) {
 323                 PyErr_NoMemory();
 324                 return NULL;
 325         }
 326
 327         status = libnet_RemoteTOD(self->libnet_ctx, mem_ctx, &r);
 328         if (!NT_STATUS_IS_OK(status)) {
 329                 PyErr_SetNTSTATUS_and_string(status,
 330                                              r.generic.out.error_string
 331                                              ? r.generic.out.error_string
 332                                              : nt_errstr(status));
 333                 talloc_free(mem_ctx);
 334                 return NULL;
 335         }
 336
 337         ZERO_STRUCT(timestr);
 338         tm = localtime(&r.generic.out.time);
 339
 340         len = strftime(timestr, sizeof(timestr), "%c %Z", tm);
 341         if (len == 0) {
 342                 PyErr_NoMemory();
 343                 ret = NULL;
 344         } else {
 345                 ret = PyUnicode_FromStringAndSize(timestr, (Py_ssize_t)len);
 346         }
 347
 348         talloc_free(mem_ctx);
 349         return ret;
 350 }
 351
 352 static const char py_net_time_doc[] = "time(server_name) -> timestr\n"
 353 "Retrieve the remote time on a server";
 354
 355 static PyObject *py_net_user_create(py_net_Object *self, PyObject *args, PyObject *kwargs)
 356 {
 357         const char *kwnames[] = { "username", NULL };
 358         NTSTATUS status;
 359         TALLOC_CTX *mem_ctx;
 360         struct libnet_CreateUser r;
 361
 362         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s", discard_const_p(char *, kwnames),
 363                                                                          &r.in.user_name))
 364                 return NULL;
 365
 366         r.in.domain_name = cli_credentials_get_domain(self->libnet_ctx->cred);
 367
 368         mem_ctx = talloc_new(NULL);
 369         if (mem_ctx == NULL) {
 370                 PyErr_NoMemory();
 371                 return NULL;
 372         }
 373
 374         status = libnet_CreateUser(self->libnet_ctx, mem_ctx, &r);
 375         if (!NT_STATUS_IS_OK(status)) {
 376                 PyErr_SetNTSTATUS_and_string(status,
 377                                              r.out.error_string
 378                                              ? r.out.error_string
 379                                              : nt_errstr(status));
 380                 talloc_free(mem_ctx);
 381                 return NULL;
 382         }
 383
 384         talloc_free(mem_ctx);
 385
 386         Py_RETURN_NONE;
 387 }
 388
 389 static const char py_net_create_user_doc[] = "create_user(username)\n"
 390 "Create a new user.";
 391
 392 static PyObject *py_net_user_delete(py_net_Object *self, PyObject *args, PyObject *kwargs)
 393 {
 394         const char *kwnames[] = { "username", NULL };
 395         NTSTATUS status;
 396         TALLOC_CTX *mem_ctx;
 397         struct libnet_DeleteUser r;
 398
 399         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s", discard_const_p(char *, kwnames),
 400                                                                          &r.in.user_name))
 401                 return NULL;
 402
 403         r.in.domain_name = cli_credentials_get_domain(self->libnet_ctx->cred);
 404
 405         mem_ctx = talloc_new(NULL);
 406         if (mem_ctx == NULL) {
 407                 PyErr_NoMemory();
 408                 return NULL;
 409         }
 410
 411         status = libnet_DeleteUser(self->libnet_ctx, mem_ctx, &r);
 412         if (!NT_STATUS_IS_OK(status)) {
 413                 PyErr_SetNTSTATUS_and_string(status,
 414                                            r.out.error_string
 415                                           ? r.out.error_string
 416                                           : nt_errstr(status));
 417                 talloc_free(mem_ctx);
 418                 return NULL;
 419         }
 420
 421         talloc_free(mem_ctx);
 422
 423         Py_RETURN_NONE;
 424 }
 425
 426 static const char py_net_delete_user_doc[] = "delete_user(username)\n"
 427 "Delete a user.";
 428
 429 struct replicate_state {
 430         void *vampire_state;
 431         dcerpc_InterfaceObject *drs_pipe;
 432         struct libnet_BecomeDC_StoreChunk chunk;
 433         DATA_BLOB gensec_skey;
 434         struct libnet_BecomeDC_Partition partition;
 435         struct libnet_BecomeDC_Forest forest;
 436         struct libnet_BecomeDC_DestDSA dest_dsa;
 437 };
 438
 439 /*
 440   setup for replicate_chunk() calls
 441  */
 442 static PyObject *py_net_replicate_init(py_net_Object *self, PyObject *args, PyObject *kwargs)
 443 {
 444         const char *kwnames[] = { "samdb", "lp", "drspipe", "invocation_id", NULL };
 445         PyObject *py_ldb, *py_lp, *py_drspipe, *py_invocation_id;
 446         struct ldb_context *samdb;
 447         struct loadparm_context *lp;
 448         struct replicate_state *s;
 449         NTSTATUS status;
 450
 451         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OOOO",
 452                                          discard_const_p(char *, kwnames),
 453                                          &py_ldb, &py_lp, &py_drspipe,
 454                                          &py_invocation_id)) {
 455                 return NULL;
 456         }
 457
 458         s = talloc_zero(NULL, struct replicate_state);
 459         if (!s) return NULL;
 460
 461         lp = lpcfg_from_py_object(s, py_lp);
 462         if (lp == NULL) {
 463                 PyErr_SetString(PyExc_TypeError, "Expected lp object");
 464                 talloc_free(s);
 465                 return NULL;
 466         }
 467
 468         samdb = pyldb_Ldb_AsLdbContext(py_ldb);
 469         if (samdb == NULL) {
 470                 PyErr_SetString(PyExc_TypeError, "Expected ldb object");
 471                 talloc_free(s);
 472                 return NULL;
 473         }
 474         if (!py_check_dcerpc_type(py_invocation_id, "samba.dcerpc.misc", "GUID")) {
 475
 476                 talloc_free(s);
 477                 return NULL;
 478         }
 479         s->dest_dsa.invocation_id = *pytalloc_get_type(py_invocation_id, struct GUID);
 480
 481         s->drs_pipe = (dcerpc_InterfaceObject *)(py_drspipe);
 482
 483         s->vampire_state = libnet_vampire_replicate_init(s, samdb, lp);
 484         if (s->vampire_state == NULL) {
 485                 PyErr_SetString(PyExc_TypeError, "Failed to initialise vampire_state");
 486                 talloc_free(s);
 487                 return NULL;
 488         }
 489
 490         status = gensec_session_key(s->drs_pipe->pipe->conn->security_state.generic_state,
 491                                     s,
 492                                     &s->gensec_skey);
 493         if (!NT_STATUS_IS_OK(status)) {
 494                 char *error_string = talloc_asprintf(s,
 495                                                      "Unable to get session key from drspipe: %s",
 496                                                      nt_errstr(status));
 497                 PyErr_SetNTSTATUS_and_string(status, error_string);
 498                 talloc_free(s);
 499                 return NULL;
 500         }
 501
 502         s->forest.dns_name = samdb_dn_to_dns_domain(s, ldb_get_root_basedn(samdb));
 503         s->forest.root_dn_str = ldb_dn_get_linearized(ldb_get_root_basedn(samdb));
 504         s->forest.config_dn_str = ldb_dn_get_linearized(ldb_get_config_basedn(samdb));
 505         s->forest.schema_dn_str = ldb_dn_get_linearized(ldb_get_schema_basedn(samdb));
 506
 507         s->chunk.gensec_skey = &s->gensec_skey;
 508         s->chunk.partition = &s->partition;
 509         s->chunk.forest = &s->forest;
 510         s->chunk.dest_dsa = &s->dest_dsa;
 511
 512         return pytalloc_GenericObject_steal(s);
 513 }
 514
 515
 516 /*
 517   process one replication chunk
 518  */
 519 static PyObject *py_net_replicate_chunk(py_net_Object *self, PyObject *args, PyObject *kwargs)
 520 {
 521         const char *kwnames[] = { "state", "level", "ctr",
 522                                   "schema", "req_level", "req",
 523                                   NULL };
 524         PyObject *py_state, *py_ctr, *py_schema = Py_None, *py_req = Py_None;
 525         struct replicate_state *s;
 526         unsigned level;
 527         unsigned req_level = 0;
 528         WERROR (*chunk_handler)(void *private_data, const struct libnet_BecomeDC_StoreChunk *c);
 529         WERROR werr;
 530         enum drsuapi_DsExtendedError extended_ret = DRSUAPI_EXOP_ERR_NONE;
 531         enum drsuapi_DsExtendedOperation exop = DRSUAPI_EXOP_NONE;
 532
 533         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OIO|OIO",
 534                                          discard_const_p(char *, kwnames),
 535                                          &py_state, &level, &py_ctr,
 536                                          &py_schema, &req_level, &py_req)) {
 537                 return NULL;
 538         }
 539
 540         s = pytalloc_get_type(py_state, struct replicate_state);
 541         if (!s) {
 542                 return NULL;
 543         }
 544
 545         switch (level) {
 546         case 1:
 547                 if (!py_check_dcerpc_type(py_ctr, "samba.dcerpc.drsuapi", "DsGetNCChangesCtr1")) {
 548                         return NULL;
 549                 }
 550                 s->chunk.ctr1                         = pytalloc_get_ptr(py_ctr);
 551                 if (s->chunk.ctr1->naming_context != NULL) {
 552                         s->partition.nc = *s->chunk.ctr1->naming_context;
 553                 }
 554                 extended_ret = s->chunk.ctr1->extended_ret;
 555                 s->partition.more_data                = s->chunk.ctr1->more_data;
 556                 s->partition.source_dsa_guid          = s->chunk.ctr1->source_dsa_guid;
 557                 s->partition.source_dsa_invocation_id = s->chunk.ctr1->source_dsa_invocation_id;
 558                 s->partition.highwatermark            = s->chunk.ctr1->new_highwatermark;
 559                 break;
 560         case 6:
 561                 if (!py_check_dcerpc_type(py_ctr, "samba.dcerpc.drsuapi", "DsGetNCChangesCtr6")) {
 562                         return NULL;
 563                 }
 564                 s->chunk.ctr6                         = pytalloc_get_ptr(py_ctr);
 565                 if (s->chunk.ctr6->naming_context != NULL) {
 566                         s->partition.nc = *s->chunk.ctr6->naming_context;
 567                 }
 568                 extended_ret = s->chunk.ctr6->extended_ret;
 569                 s->partition.more_data                = s->chunk.ctr6->more_data;
 570                 s->partition.source_dsa_guid          = s->chunk.ctr6->source_dsa_guid;
 571                 s->partition.source_dsa_invocation_id = s->chunk.ctr6->source_dsa_invocation_id;
 572                 s->partition.highwatermark            = s->chunk.ctr6->new_highwatermark;
 573                 break;
 574         default:
 575                 PyErr_Format(PyExc_TypeError, "Bad level %u in replicate_chunk", level);
 576                 return NULL;
 577         }
 578
 579         s->chunk.req5 = NULL;
 580         s->chunk.req8 = NULL;
 581         s->chunk.req10 = NULL;
 582         if (py_req != Py_None) {
 583                 switch (req_level) {
 584                 case 0:
 585                         break;
 586                 case 5:
 587                         if (!py_check_dcerpc_type(py_req, "samba.dcerpc.drsuapi", "DsGetNCChangesRequest5")) {
 588                                 return NULL;
 589                         }
 590
 591                         s->chunk.req5 = pytalloc_get_ptr(py_req);
 592                         exop = s->chunk.req5->extended_op;
 593                         break;
 594                 case 8:
 595                         if (!py_check_dcerpc_type(py_req, "samba.dcerpc.drsuapi", "DsGetNCChangesRequest8")) {
 596                                 return NULL;
 597                         }
 598
 599                         s->chunk.req8 = pytalloc_get_ptr(py_req);
 600                         exop = s->chunk.req8->extended_op;
 601                         break;
 602                 case 10:
 603                         if (!py_check_dcerpc_type(py_req, "samba.dcerpc.drsuapi", "DsGetNCChangesRequest10")) {
 604                                 return NULL;
 605                         }
 606
 607                         s->chunk.req10 = pytalloc_get_ptr(py_req);
 608                         exop = s->chunk.req10->extended_op;
 609                         break;
 610                 default:
 611                         PyErr_Format(PyExc_TypeError, "Bad req_level %u in replicate_chunk", req_level);
 612                         return NULL;
 613                 }
 614         }
 615
 616         if (exop != DRSUAPI_EXOP_NONE && extended_ret != DRSUAPI_EXOP_ERR_SUCCESS) {
 617                 PyErr_SetDsExtendedError(extended_ret, NULL);
 618                 return NULL;
 619         }
 620
 621         s->chunk.req_level = req_level;
 622
 623         chunk_handler = libnet_vampire_cb_store_chunk;
 624         if (py_schema) {
 625                 if (!PyBool_Check(py_schema)) {
 626                         PyErr_SetString(PyExc_TypeError, "Expected boolean schema");
 627                         return NULL;
 628                 }
 629                 if (py_schema == Py_True) {
 630                         chunk_handler = libnet_vampire_cb_schema_chunk;
 631                 }
 632         }
 633
 634         s->chunk.ctr_level = level;
 635
 636         werr = chunk_handler(s->vampire_state, &s->chunk);
 637         if (!W_ERROR_IS_OK(werr)) {
 638                 char *error_string
 639                         = talloc_asprintf(NULL,
 640                                           "Failed to process 'chunk' of DRS replicated objects: %s",
 641                                           win_errstr(werr));
 642                 PyErr_SetWERROR_and_string(werr, error_string);
 643                 TALLOC_FREE(error_string);
 644                 return NULL;
 645         }
 646
 647         Py_RETURN_NONE;
 648 }
 649
 650
 651 /*
 652   just do the decryption of a DRS replicated attribute
 653  */
 654 static PyObject *py_net_replicate_decrypt(py_net_Object *self, PyObject *args, PyObject *kwargs)
 655 {
 656         const char *kwnames[] = { "drspipe", "attribute", "rid", NULL };
 657         PyObject *py_drspipe, *py_attribute;
 658         NTSTATUS status;
 659         dcerpc_InterfaceObject *drs_pipe;
 660         TALLOC_CTX *frame;
 661         TALLOC_CTX *context;
 662         DATA_BLOB gensec_skey;
 663         unsigned int rid;
 664         struct drsuapi_DsReplicaAttribute *attribute;
 665         WERROR werr;
 666
 667         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OOI",
 668                                          discard_const_p(char *, kwnames),
 669                                          &py_drspipe,
 670                                          &py_attribute, &rid)) {
 671                 return NULL;
 672         }
 673
 674         frame = talloc_stackframe();
 675
 676         if (!py_check_dcerpc_type(py_drspipe,
 677                                   "samba.dcerpc.base",
 678                                   "ClientConnection")) {
 679                 return NULL;
 680         }
 681         drs_pipe = (dcerpc_InterfaceObject *)(py_drspipe);
 682
 683         status = gensec_session_key(drs_pipe->pipe->conn->security_state.generic_state,
 684                                     frame,
 685                                     &gensec_skey);
 686         if (!NT_STATUS_IS_OK(status)) {
 687                 char *error_string
 688                         = talloc_asprintf(frame,
 689                                           "Unable to get session key from drspipe: %s",
 690                                           nt_errstr(status));
 691                 PyErr_SetNTSTATUS_and_string(status, error_string);
 692                 talloc_free(frame);
 693                 return NULL;
 694         }
 695
 696         if (!py_check_dcerpc_type(py_attribute, "samba.dcerpc.drsuapi",
 697                                   "DsReplicaAttribute")) {
 698                 return NULL;
 699         }
 700
 701         attribute = pytalloc_get_ptr(py_attribute);
 702         context   = pytalloc_get_mem_ctx(py_attribute);
 703         werr = drsuapi_decrypt_attribute(context, &gensec_skey,
 704                                          rid, 0, attribute);
 705         if (!W_ERROR_IS_OK(werr)) {
 706                 char *error_string = talloc_asprintf(frame,
 707                                                      "Unable to get decrypt attribute: %s",
 708                                                      win_errstr(werr));
 709                 PyErr_SetWERROR_and_string(werr, error_string);
 710                 talloc_free(frame);
 711                 return NULL;
 712         }
 713
 714         talloc_free(frame);
 715
 716         Py_RETURN_NONE;
 717
 718 }
 719
 720 /*
 721   find a DC given a domain name and server type
 722  */
 723 static PyObject *py_net_finddc(py_net_Object *self, PyObject *args, PyObject *kwargs)
 724 {
 725         const char *domain = NULL, *address = NULL;
 726         unsigned server_type;
 727         NTSTATUS status;
 728         struct finddcs *io;
 729         TALLOC_CTX *mem_ctx;
 730         PyObject *ret;
 731         const char * const kwnames[] = { "flags", "domain", "address", NULL };
 732
 733         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "I|zz",
 734                                          discard_const_p(char *, kwnames),
 735                                          &server_type, &domain, &address)) {
 736                 return NULL;
 737         }
 738
 739         mem_ctx = talloc_new(self->mem_ctx);
 740         if (mem_ctx == NULL) {
 741                 PyErr_NoMemory();
 742                 return NULL;
 743         }
 744
 745         io = talloc_zero(mem_ctx, struct finddcs);
 746         if (io == NULL) {
 747                 TALLOC_FREE(mem_ctx);
 748                 PyErr_NoMemory();
 749                 return NULL;
 750         }
 751
 752         if (domain != NULL) {
 753                 io->in.domain_name = domain;
 754         }
 755         if (address != NULL) {
 756                 io->in.server_address = address;
 757         }
 758         io->in.minimum_dc_flags = server_type;
 759
 760         status = finddcs_cldap(io, io,
 761                                lpcfg_resolve_context(self->libnet_ctx->lp_ctx), self->ev);
 762         if (NT_STATUS_IS_ERR(status)) {
 763                 PyErr_SetNTSTATUS(status);
 764                 talloc_free(mem_ctx);
 765                 return NULL;
 766         }
 767
 768         ret = py_return_ndr_struct("samba.dcerpc.nbt", "NETLOGON_SAM_LOGON_RESPONSE_EX",
 769                                    io, &io->out.netlogon.data.nt5_ex);
 770         talloc_free(mem_ctx);
 771
 772         return ret;
 773 }
 774
 775
 776 static const char py_net_replicate_init_doc[] = "replicate_init(samdb, lp, drspipe)\n"
 777                                          "Setup for replicate_chunk calls.";
 778
 779 static const char py_net_replicate_chunk_doc[] = "replicate_chunk(state, level, ctr, schema)\n"
 780                                          "Process replication for one chunk";
 781
 782 static const char py_net_replicate_decrypt_doc[] = "replicate_decrypt(drs, attribute, rid)\n"
 783                                          "Decrypt (in place) a DsReplicaAttribute replicated with drs.GetNCChanges()";
 784
 785 static const char py_net_finddc_doc[] = "finddc(flags=server_type, domain=None, address=None)\n"
 786                                          "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";
 787
 788 static PyMethodDef net_obj_methods[] = {
 789         {
 790                 .ml_name  = "join_member",
 791                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 792                                 py_net_join_member),
 793                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 794                 .ml_doc   = py_net_join_member_doc
 795         },
 796         {
 797                 .ml_name  = "change_password",
 798                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 799                                 py_net_change_password),
 800                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 801                 .ml_doc   = py_net_change_password_doc
 802         },
 803         {
 804                 .ml_name  = "set_password",
 805                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 806                                 py_net_set_password),
 807                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 808                 .ml_doc   = py_net_set_password_doc
 809         },
 810         {
 811                 .ml_name  = "time",
 812                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction, py_net_time),
 813                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 814                 .ml_doc   = py_net_time_doc
 815         },
 816         {
 817                 .ml_name  = "create_user",
 818                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 819                                 py_net_user_create),
 820                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 821                 .ml_doc   = py_net_create_user_doc
 822         },
 823         {
 824                 .ml_name  = "delete_user",
 825                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 826                                 py_net_user_delete),
 827                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 828                 .ml_doc   = py_net_delete_user_doc
 829         },
 830         {
 831                 .ml_name  = "replicate_init",
 832                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 833                                 py_net_replicate_init),
 834                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 835                 .ml_doc   = py_net_replicate_init_doc
 836         },
 837         {
 838                 .ml_name  = "replicate_chunk",
 839                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 840                                 py_net_replicate_chunk),
 841                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 842                 .ml_doc   = py_net_replicate_chunk_doc
 843         },
 844         {
 845                 .ml_name  = "replicate_decrypt",
 846                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 847                                 py_net_replicate_decrypt),
 848                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 849                 .ml_doc   = py_net_replicate_decrypt_doc
 850         },
 851         {
 852                 .ml_name  = "finddc",
 853                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 854                                 py_net_finddc),
 855                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 856                 .ml_doc   = py_net_finddc_doc
 857         },
 858         { .ml_name = NULL }
 859 };
 860
 861 static void py_net_dealloc(py_net_Object *self)
 862 {
 863         talloc_free(self->ev);
 864         PyObject_Del(self);
 865 }
 866
 867 static PyObject *net_obj_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
 868 {
 869         PyObject *py_creds, *py_lp = Py_None;
 870         const char *kwnames[] = { "creds", "lp", "server", NULL };
 871         py_net_Object *ret;
 872         struct loadparm_context *lp;
 873         const char *server_address = NULL;
 874
 875         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|Oz",
 876                                          discard_const_p(char *, kwnames), &py_creds, &py_lp,
 877                                          &server_address))
 878                 return NULL;
 879
 880         ret = PyObject_New(py_net_Object, type);
 881         if (ret == NULL) {
 882                 return NULL;
 883         }
 884
 885         /* FIXME: we really need to get a context from the caller or we may end
 886          * up with 2 event contexts */
 887         ret->ev = s4_event_context_init(NULL);
 888         ret->mem_ctx = talloc_new(ret->ev);
 889
 890         lp = lpcfg_from_py_object(ret->mem_ctx, py_lp);
 891         if (lp == NULL) {
 892                 Py_DECREF(ret);
 893                 return NULL;
 894         }
 895
 896         ret->libnet_ctx = libnet_context_init(ret->ev, lp);
 897         if (ret->libnet_ctx == NULL) {
 898                 PyErr_SetString(PyExc_RuntimeError, "Unable to initialize net");
 899                 Py_DECREF(ret);
 900                 return NULL;
 901         }
 902
 903         ret->libnet_ctx->server_address = server_address;
 904
 905         ret->libnet_ctx->cred = cli_credentials_from_py_object(py_creds);
 906         if (ret->libnet_ctx->cred == NULL) {
 907                 PyErr_SetString(PyExc_TypeError, "Expected credentials object");
 908                 Py_DECREF(ret);
 909                 return NULL;
 910         }
 911
 912         return (PyObject *)ret;
 913 }
 914
 915
 916 PyTypeObject py_net_Type = {
 917         PyVarObject_HEAD_INIT(NULL, 0)
 918         .tp_name = "net.Net",
 919         .tp_basicsize = sizeof(py_net_Object),
 920         .tp_dealloc = (destructor)py_net_dealloc,
 921         .tp_methods = net_obj_methods,
 922         .tp_new = net_obj_new,
 923 };
 924
 925 static struct PyModuleDef moduledef = {
 926         PyModuleDef_HEAD_INIT,
 927         .m_name = "net",
 928         .m_size = -1,
 929 };
 930
 931 MODULE_INIT_FUNC(net)
 932 {
 933         PyObject *m;
 934
 935         if (PyType_Ready(&py_net_Type) < 0)
 936                 return NULL;
 937
 938         m = PyModule_Create(&moduledef);
 939         if (m == NULL)
 940                 return NULL;
 941
 942         Py_INCREF(&py_net_Type);
 943         PyModule_AddObject(m, "Net", (PyObject *)&py_net_Type);
 944         PyModule_AddIntConstant(m, "LIBNET_JOINDOMAIN_AUTOMATIC", LIBNET_JOINDOMAIN_AUTOMATIC);
 945         PyModule_AddIntConstant(m, "LIBNET_JOINDOMAIN_SPECIFIED", LIBNET_JOINDOMAIN_SPECIFIED);
 946         PyModule_AddIntConstant(m, "LIBNET_JOIN_AUTOMATIC", LIBNET_JOIN_AUTOMATIC);
 947         PyModule_AddIntConstant(m, "LIBNET_JOIN_SPECIFIED", LIBNET_JOIN_SPECIFIED);
 948
 949         return m;
 950 }