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 "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
 314         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s",
 315                 discard_const_p(char *, kwnames), &r.generic.in.server_name))
 316                 return NULL;
 317
 318         r.generic.level                 = LIBNET_REMOTE_TOD_GENERIC;
 319
 320         mem_ctx = talloc_new(NULL);
 321         if (mem_ctx == NULL) {
 322                 PyErr_NoMemory();
 323                 return NULL;
 324         }
 325
 326         status = libnet_RemoteTOD(self->libnet_ctx, mem_ctx, &r);
 327         if (!NT_STATUS_IS_OK(status)) {
 328                 PyErr_SetNTSTATUS_and_string(status,
 329                                              r.generic.out.error_string
 330                                              ? r.generic.out.error_string
 331                                              : nt_errstr(status));
 332                 talloc_free(mem_ctx);
 333                 return NULL;
 334         }
 335
 336         ZERO_STRUCT(timestr);
 337         tm = localtime(&r.generic.out.time);
 338         strftime(timestr, sizeof(timestr)-1, "%c %Z",tm);
 339
 340         ret = PyUnicode_FromString(timestr);
 341
 342         talloc_free(mem_ctx);
 343
 344         return ret;
 345 }
 346
 347 static const char py_net_time_doc[] = "time(server_name) -> timestr\n"
 348 "Retrieve the remote time on a server";
 349
 350 static PyObject *py_net_user_create(py_net_Object *self, PyObject *args, PyObject *kwargs)
 351 {
 352         const char *kwnames[] = { "username", NULL };
 353         NTSTATUS status;
 354         TALLOC_CTX *mem_ctx;
 355         struct libnet_CreateUser r;
 356
 357         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s", discard_const_p(char *, kwnames),
 358                                                                          &r.in.user_name))
 359                 return NULL;
 360
 361         r.in.domain_name = cli_credentials_get_domain(self->libnet_ctx->cred);
 362
 363         mem_ctx = talloc_new(NULL);
 364         if (mem_ctx == NULL) {
 365                 PyErr_NoMemory();
 366                 return NULL;
 367         }
 368
 369         status = libnet_CreateUser(self->libnet_ctx, mem_ctx, &r);
 370         if (!NT_STATUS_IS_OK(status)) {
 371                 PyErr_SetNTSTATUS_and_string(status,
 372                                              r.out.error_string
 373                                              ? r.out.error_string
 374                                              : nt_errstr(status));
 375                 talloc_free(mem_ctx);
 376                 return NULL;
 377         }
 378
 379         talloc_free(mem_ctx);
 380
 381         Py_RETURN_NONE;
 382 }
 383
 384 static const char py_net_create_user_doc[] = "create_user(username)\n"
 385 "Create a new user.";
 386
 387 static PyObject *py_net_user_delete(py_net_Object *self, PyObject *args, PyObject *kwargs)
 388 {
 389         const char *kwnames[] = { "username", NULL };
 390         NTSTATUS status;
 391         TALLOC_CTX *mem_ctx;
 392         struct libnet_DeleteUser r;
 393
 394         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s", discard_const_p(char *, kwnames),
 395                                                                          &r.in.user_name))
 396                 return NULL;
 397
 398         r.in.domain_name = cli_credentials_get_domain(self->libnet_ctx->cred);
 399
 400         mem_ctx = talloc_new(NULL);
 401         if (mem_ctx == NULL) {
 402                 PyErr_NoMemory();
 403                 return NULL;
 404         }
 405
 406         status = libnet_DeleteUser(self->libnet_ctx, mem_ctx, &r);
 407         if (!NT_STATUS_IS_OK(status)) {
 408                 PyErr_SetNTSTATUS_and_string(status,
 409                                            r.out.error_string
 410                                           ? r.out.error_string
 411                                           : nt_errstr(status));
 412                 talloc_free(mem_ctx);
 413                 return NULL;
 414         }
 415
 416         talloc_free(mem_ctx);
 417
 418         Py_RETURN_NONE;
 419 }
 420
 421 static const char py_net_delete_user_doc[] = "delete_user(username)\n"
 422 "Delete a user.";
 423
 424 struct replicate_state {
 425         void *vampire_state;
 426         dcerpc_InterfaceObject *drs_pipe;
 427         struct libnet_BecomeDC_StoreChunk chunk;
 428         DATA_BLOB gensec_skey;
 429         struct libnet_BecomeDC_Partition partition;
 430         struct libnet_BecomeDC_Forest forest;
 431         struct libnet_BecomeDC_DestDSA dest_dsa;
 432 };
 433
 434 /*
 435   setup for replicate_chunk() calls
 436  */
 437 static PyObject *py_net_replicate_init(py_net_Object *self, PyObject *args, PyObject *kwargs)
 438 {
 439         const char *kwnames[] = { "samdb", "lp", "drspipe", "invocation_id", NULL };
 440         PyObject *py_ldb, *py_lp, *py_drspipe, *py_invocation_id;
 441         struct ldb_context *samdb;
 442         struct loadparm_context *lp;
 443         struct replicate_state *s;
 444         NTSTATUS status;
 445
 446         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OOOO",
 447                                          discard_const_p(char *, kwnames),
 448                                          &py_ldb, &py_lp, &py_drspipe,
 449                                          &py_invocation_id)) {
 450                 return NULL;
 451         }
 452
 453         s = talloc_zero(NULL, struct replicate_state);
 454         if (!s) return NULL;
 455
 456         lp = lpcfg_from_py_object(s, py_lp);
 457         if (lp == NULL) {
 458                 PyErr_SetString(PyExc_TypeError, "Expected lp object");
 459                 talloc_free(s);
 460                 return NULL;
 461         }
 462
 463         samdb = pyldb_Ldb_AsLdbContext(py_ldb);
 464         if (samdb == NULL) {
 465                 PyErr_SetString(PyExc_TypeError, "Expected ldb object");
 466                 talloc_free(s);
 467                 return NULL;
 468         }
 469         if (!py_check_dcerpc_type(py_invocation_id, "samba.dcerpc.misc", "GUID")) {
 470
 471                 talloc_free(s);
 472                 return NULL;
 473         }
 474         s->dest_dsa.invocation_id = *pytalloc_get_type(py_invocation_id, struct GUID);
 475
 476         s->drs_pipe = (dcerpc_InterfaceObject *)(py_drspipe);
 477
 478         s->vampire_state = libnet_vampire_replicate_init(s, samdb, lp);
 479         if (s->vampire_state == NULL) {
 480                 PyErr_SetString(PyExc_TypeError, "Failed to initialise vampire_state");
 481                 talloc_free(s);
 482                 return NULL;
 483         }
 484
 485         status = gensec_session_key(s->drs_pipe->pipe->conn->security_state.generic_state,
 486                                     s,
 487                                     &s->gensec_skey);
 488         if (!NT_STATUS_IS_OK(status)) {
 489                 char *error_string = talloc_asprintf(s,
 490                                                      "Unable to get session key from drspipe: %s",
 491                                                      nt_errstr(status));
 492                 PyErr_SetNTSTATUS_and_string(status, error_string);
 493                 talloc_free(s);
 494                 return NULL;
 495         }
 496
 497         s->forest.dns_name = samdb_dn_to_dns_domain(s, ldb_get_root_basedn(samdb));
 498         s->forest.root_dn_str = ldb_dn_get_linearized(ldb_get_root_basedn(samdb));
 499         s->forest.config_dn_str = ldb_dn_get_linearized(ldb_get_config_basedn(samdb));
 500         s->forest.schema_dn_str = ldb_dn_get_linearized(ldb_get_schema_basedn(samdb));
 501
 502         s->chunk.gensec_skey = &s->gensec_skey;
 503         s->chunk.partition = &s->partition;
 504         s->chunk.forest = &s->forest;
 505         s->chunk.dest_dsa = &s->dest_dsa;
 506
 507         return pytalloc_GenericObject_steal(s);
 508 }
 509
 510
 511 /*
 512   process one replication chunk
 513  */
 514 static PyObject *py_net_replicate_chunk(py_net_Object *self, PyObject *args, PyObject *kwargs)
 515 {
 516         const char *kwnames[] = { "state", "level", "ctr",
 517                                   "schema", "req_level", "req",
 518                                   NULL };
 519         PyObject *py_state, *py_ctr, *py_schema = Py_None, *py_req = Py_None;
 520         struct replicate_state *s;
 521         unsigned level;
 522         unsigned req_level = 0;
 523         WERROR (*chunk_handler)(void *private_data, const struct libnet_BecomeDC_StoreChunk *c);
 524         WERROR werr;
 525         enum drsuapi_DsExtendedError extended_ret = DRSUAPI_EXOP_ERR_NONE;
 526         enum drsuapi_DsExtendedOperation exop = DRSUAPI_EXOP_NONE;
 527
 528         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OIO|OIO",
 529                                          discard_const_p(char *, kwnames),
 530                                          &py_state, &level, &py_ctr,
 531                                          &py_schema, &req_level, &py_req)) {
 532                 return NULL;
 533         }
 534
 535         s = pytalloc_get_type(py_state, struct replicate_state);
 536         if (!s) {
 537                 return NULL;
 538         }
 539
 540         switch (level) {
 541         case 1:
 542                 if (!py_check_dcerpc_type(py_ctr, "samba.dcerpc.drsuapi", "DsGetNCChangesCtr1")) {
 543                         return NULL;
 544                 }
 545                 s->chunk.ctr1                         = pytalloc_get_ptr(py_ctr);
 546                 if (s->chunk.ctr1->naming_context != NULL) {
 547                         s->partition.nc = *s->chunk.ctr1->naming_context;
 548                 }
 549                 extended_ret = s->chunk.ctr1->extended_ret;
 550                 s->partition.more_data                = s->chunk.ctr1->more_data;
 551                 s->partition.source_dsa_guid          = s->chunk.ctr1->source_dsa_guid;
 552                 s->partition.source_dsa_invocation_id = s->chunk.ctr1->source_dsa_invocation_id;
 553                 s->partition.highwatermark            = s->chunk.ctr1->new_highwatermark;
 554                 break;
 555         case 6:
 556                 if (!py_check_dcerpc_type(py_ctr, "samba.dcerpc.drsuapi", "DsGetNCChangesCtr6")) {
 557                         return NULL;
 558                 }
 559                 s->chunk.ctr6                         = pytalloc_get_ptr(py_ctr);
 560                 if (s->chunk.ctr6->naming_context != NULL) {
 561                         s->partition.nc = *s->chunk.ctr6->naming_context;
 562                 }
 563                 extended_ret = s->chunk.ctr6->extended_ret;
 564                 s->partition.more_data                = s->chunk.ctr6->more_data;
 565                 s->partition.source_dsa_guid          = s->chunk.ctr6->source_dsa_guid;
 566                 s->partition.source_dsa_invocation_id = s->chunk.ctr6->source_dsa_invocation_id;
 567                 s->partition.highwatermark            = s->chunk.ctr6->new_highwatermark;
 568                 break;
 569         default:
 570                 PyErr_Format(PyExc_TypeError, "Bad level %u in replicate_chunk", level);
 571                 return NULL;
 572         }
 573
 574         s->chunk.req5 = NULL;
 575         s->chunk.req8 = NULL;
 576         s->chunk.req10 = NULL;
 577         if (py_req != Py_None) {
 578                 switch (req_level) {
 579                 case 0:
 580                         break;
 581                 case 5:
 582                         if (!py_check_dcerpc_type(py_req, "samba.dcerpc.drsuapi", "DsGetNCChangesRequest5")) {
 583                                 return NULL;
 584                         }
 585
 586                         s->chunk.req5 = pytalloc_get_ptr(py_req);
 587                         exop = s->chunk.req5->extended_op;
 588                         break;
 589                 case 8:
 590                         if (!py_check_dcerpc_type(py_req, "samba.dcerpc.drsuapi", "DsGetNCChangesRequest8")) {
 591                                 return NULL;
 592                         }
 593
 594                         s->chunk.req8 = pytalloc_get_ptr(py_req);
 595                         exop = s->chunk.req8->extended_op;
 596                         break;
 597                 case 10:
 598                         if (!py_check_dcerpc_type(py_req, "samba.dcerpc.drsuapi", "DsGetNCChangesRequest10")) {
 599                                 return NULL;
 600                         }
 601
 602                         s->chunk.req10 = pytalloc_get_ptr(py_req);
 603                         exop = s->chunk.req10->extended_op;
 604                         break;
 605                 default:
 606                         PyErr_Format(PyExc_TypeError, "Bad req_level %u in replicate_chunk", req_level);
 607                         return NULL;
 608                 }
 609         }
 610
 611         if (exop != DRSUAPI_EXOP_NONE && extended_ret != DRSUAPI_EXOP_ERR_SUCCESS) {
 612                 PyErr_SetDsExtendedError(extended_ret, NULL);
 613                 return NULL;
 614         }
 615
 616         s->chunk.req_level = req_level;
 617
 618         chunk_handler = libnet_vampire_cb_store_chunk;
 619         if (py_schema) {
 620                 if (!PyBool_Check(py_schema)) {
 621                         PyErr_SetString(PyExc_TypeError, "Expected boolean schema");
 622                         return NULL;
 623                 }
 624                 if (py_schema == Py_True) {
 625                         chunk_handler = libnet_vampire_cb_schema_chunk;
 626                 }
 627         }
 628
 629         s->chunk.ctr_level = level;
 630
 631         werr = chunk_handler(s->vampire_state, &s->chunk);
 632         if (!W_ERROR_IS_OK(werr)) {
 633                 char *error_string
 634                         = talloc_asprintf(NULL,
 635                                           "Failed to process 'chunk' of DRS replicated objects: %s",
 636                                           win_errstr(werr));
 637                 PyErr_SetWERROR_and_string(werr, error_string);
 638                 TALLOC_FREE(error_string);
 639                 return NULL;
 640         }
 641
 642         Py_RETURN_NONE;
 643 }
 644
 645
 646 /*
 647   just do the decryption of a DRS replicated attribute
 648  */
 649 static PyObject *py_net_replicate_decrypt(py_net_Object *self, PyObject *args, PyObject *kwargs)
 650 {
 651         const char *kwnames[] = { "drspipe", "attribute", "rid", NULL };
 652         PyObject *py_drspipe, *py_attribute;
 653         NTSTATUS status;
 654         dcerpc_InterfaceObject *drs_pipe;
 655         TALLOC_CTX *frame;
 656         TALLOC_CTX *context;
 657         DATA_BLOB gensec_skey;
 658         unsigned int rid;
 659         struct drsuapi_DsReplicaAttribute *attribute;
 660         WERROR werr;
 661
 662         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OOI",
 663                                          discard_const_p(char *, kwnames),
 664                                          &py_drspipe,
 665                                          &py_attribute, &rid)) {
 666                 return NULL;
 667         }
 668
 669         frame = talloc_stackframe();
 670
 671         if (!py_check_dcerpc_type(py_drspipe,
 672                                   "samba.dcerpc.base",
 673                                   "ClientConnection")) {
 674                 return NULL;
 675         }
 676         drs_pipe = (dcerpc_InterfaceObject *)(py_drspipe);
 677
 678         status = gensec_session_key(drs_pipe->pipe->conn->security_state.generic_state,
 679                                     frame,
 680                                     &gensec_skey);
 681         if (!NT_STATUS_IS_OK(status)) {
 682                 char *error_string
 683                         = talloc_asprintf(frame,
 684                                           "Unable to get session key from drspipe: %s",
 685                                           nt_errstr(status));
 686                 PyErr_SetNTSTATUS_and_string(status, error_string);
 687                 talloc_free(frame);
 688                 return NULL;
 689         }
 690
 691         if (!py_check_dcerpc_type(py_attribute, "samba.dcerpc.drsuapi",
 692                                   "DsReplicaAttribute")) {
 693                 return NULL;
 694         }
 695
 696         attribute = pytalloc_get_ptr(py_attribute);
 697         context   = pytalloc_get_mem_ctx(py_attribute);
 698         werr = drsuapi_decrypt_attribute(context, &gensec_skey,
 699                                          rid, 0, attribute);
 700         if (!W_ERROR_IS_OK(werr)) {
 701                 char *error_string = talloc_asprintf(frame,
 702                                                      "Unable to get decrypt attribute: %s",
 703                                                      win_errstr(werr));
 704                 PyErr_SetWERROR_and_string(werr, error_string);
 705                 talloc_free(frame);
 706                 return NULL;
 707         }
 708
 709         talloc_free(frame);
 710
 711         Py_RETURN_NONE;
 712
 713 }
 714
 715 /*
 716   find a DC given a domain name and server type
 717  */
 718 static PyObject *py_net_finddc(py_net_Object *self, PyObject *args, PyObject *kwargs)
 719 {
 720         const char *domain = NULL, *address = NULL;
 721         unsigned server_type;
 722         NTSTATUS status;
 723         struct finddcs *io;
 724         TALLOC_CTX *mem_ctx;
 725         PyObject *ret;
 726         const char * const kwnames[] = { "flags", "domain", "address", NULL };
 727
 728         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "I|zz",
 729                                          discard_const_p(char *, kwnames),
 730                                          &server_type, &domain, &address)) {
 731                 return NULL;
 732         }
 733
 734         mem_ctx = talloc_new(self->mem_ctx);
 735         if (mem_ctx == NULL) {
 736                 PyErr_NoMemory();
 737                 return NULL;
 738         }
 739
 740         io = talloc_zero(mem_ctx, struct finddcs);
 741         if (io == NULL) {
 742                 TALLOC_FREE(mem_ctx);
 743                 PyErr_NoMemory();
 744                 return NULL;
 745         }
 746
 747         if (domain != NULL) {
 748                 io->in.domain_name = domain;
 749         }
 750         if (address != NULL) {
 751                 io->in.server_address = address;
 752         }
 753         io->in.minimum_dc_flags = server_type;
 754
 755         status = finddcs_cldap(io, io,
 756                                lpcfg_resolve_context(self->libnet_ctx->lp_ctx), self->ev);
 757         if (NT_STATUS_IS_ERR(status)) {
 758                 PyErr_SetNTSTATUS(status);
 759                 talloc_free(mem_ctx);
 760                 return NULL;
 761         }
 762
 763         ret = py_return_ndr_struct("samba.dcerpc.nbt", "NETLOGON_SAM_LOGON_RESPONSE_EX",
 764                                    io, &io->out.netlogon.data.nt5_ex);
 765         talloc_free(mem_ctx);
 766
 767         return ret;
 768 }
 769
 770
 771 static const char py_net_replicate_init_doc[] = "replicate_init(samdb, lp, drspipe)\n"
 772                                          "Setup for replicate_chunk calls.";
 773
 774 static const char py_net_replicate_chunk_doc[] = "replicate_chunk(state, level, ctr, schema)\n"
 775                                          "Process replication for one chunk";
 776
 777 static const char py_net_replicate_decrypt_doc[] = "replicate_decrypt(drs, attribute, rid)\n"
 778                                          "Decrypt (in place) a DsReplicaAttribute replicated with drs.GetNCChanges()";
 779
 780 static const char py_net_finddc_doc[] = "finddc(flags=server_type, domain=None, address=None)\n"
 781                                          "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";
 782
 783 static PyMethodDef net_obj_methods[] = {
 784         {
 785                 .ml_name  = "join_member",
 786                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 787                                 py_net_join_member),
 788                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 789                 .ml_doc   = py_net_join_member_doc
 790         },
 791         {
 792                 .ml_name  = "change_password",
 793                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 794                                 py_net_change_password),
 795                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 796                 .ml_doc   = py_net_change_password_doc
 797         },
 798         {
 799                 .ml_name  = "set_password",
 800                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 801                                 py_net_set_password),
 802                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 803                 .ml_doc   = py_net_set_password_doc
 804         },
 805         {
 806                 .ml_name  = "time",
 807                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction, py_net_time),
 808                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 809                 .ml_doc   = py_net_time_doc
 810         },
 811         {
 812                 .ml_name  = "create_user",
 813                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 814                                 py_net_user_create),
 815                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 816                 .ml_doc   = py_net_create_user_doc
 817         },
 818         {
 819                 .ml_name  = "delete_user",
 820                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 821                                 py_net_user_delete),
 822                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 823                 .ml_doc   = py_net_delete_user_doc
 824         },
 825         {
 826                 .ml_name  = "replicate_init",
 827                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 828                                 py_net_replicate_init),
 829                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 830                 .ml_doc   = py_net_replicate_init_doc
 831         },
 832         {
 833                 .ml_name  = "replicate_chunk",
 834                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 835                                 py_net_replicate_chunk),
 836                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 837                 .ml_doc   = py_net_replicate_chunk_doc
 838         },
 839         {
 840                 .ml_name  = "replicate_decrypt",
 841                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 842                                 py_net_replicate_decrypt),
 843                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 844                 .ml_doc   = py_net_replicate_decrypt_doc
 845         },
 846         {
 847                 .ml_name  = "finddc",
 848                 .ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
 849                                 py_net_finddc),
 850                 .ml_flags = METH_VARARGS|METH_KEYWORDS,
 851                 .ml_doc   = py_net_finddc_doc
 852         },
 853         { .ml_name = NULL }
 854 };
 855
 856 static void py_net_dealloc(py_net_Object *self)
 857 {
 858         talloc_free(self->ev);
 859         PyObject_Del(self);
 860 }
 861
 862 static PyObject *net_obj_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
 863 {
 864         PyObject *py_creds, *py_lp = Py_None;
 865         const char *kwnames[] = { "creds", "lp", "server", NULL };
 866         py_net_Object *ret;
 867         struct loadparm_context *lp;
 868         const char *server_address = NULL;
 869
 870         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|Oz",
 871                                          discard_const_p(char *, kwnames), &py_creds, &py_lp,
 872                                          &server_address))
 873                 return NULL;
 874
 875         ret = PyObject_New(py_net_Object, type);
 876         if (ret == NULL) {
 877                 return NULL;
 878         }
 879
 880         /* FIXME: we really need to get a context from the caller or we may end
 881          * up with 2 event contexts */
 882         ret->ev = s4_event_context_init(NULL);
 883         ret->mem_ctx = talloc_new(ret->ev);
 884
 885         lp = lpcfg_from_py_object(ret->mem_ctx, py_lp);
 886         if (lp == NULL) {
 887                 Py_DECREF(ret);
 888                 return NULL;
 889         }
 890
 891         ret->libnet_ctx = libnet_context_init(ret->ev, lp);
 892         if (ret->libnet_ctx == NULL) {
 893                 PyErr_SetString(PyExc_RuntimeError, "Unable to initialize net");
 894                 Py_DECREF(ret);
 895                 return NULL;
 896         }
 897
 898         ret->libnet_ctx->server_address = server_address;
 899
 900         ret->libnet_ctx->cred = cli_credentials_from_py_object(py_creds);
 901         if (ret->libnet_ctx->cred == NULL) {
 902                 PyErr_SetString(PyExc_TypeError, "Expected credentials object");
 903                 Py_DECREF(ret);
 904                 return NULL;
 905         }
 906
 907         return (PyObject *)ret;
 908 }
 909
 910
 911 PyTypeObject py_net_Type = {
 912         PyVarObject_HEAD_INIT(NULL, 0)
 913         .tp_name = "net.Net",
 914         .tp_basicsize = sizeof(py_net_Object),
 915         .tp_dealloc = (destructor)py_net_dealloc,
 916         .tp_methods = net_obj_methods,
 917         .tp_new = net_obj_new,
 918 };
 919
 920 static struct PyModuleDef moduledef = {
 921         PyModuleDef_HEAD_INIT,
 922         .m_name = "net",
 923         .m_size = -1,
 924 };
 925
 926 MODULE_INIT_FUNC(net)
 927 {
 928         PyObject *m;
 929
 930         if (PyType_Ready(&py_net_Type) < 0)
 931                 return NULL;
 932
 933         m = PyModule_Create(&moduledef);
 934         if (m == NULL)
 935                 return NULL;
 936
 937         Py_INCREF(&py_net_Type);
 938         PyModule_AddObject(m, "Net", (PyObject *)&py_net_Type);
 939         PyModule_AddIntConstant(m, "LIBNET_JOINDOMAIN_AUTOMATIC", LIBNET_JOINDOMAIN_AUTOMATIC);
 940         PyModule_AddIntConstant(m, "LIBNET_JOINDOMAIN_SPECIFIED", LIBNET_JOINDOMAIN_SPECIFIED);
 941         PyModule_AddIntConstant(m, "LIBNET_JOIN_AUTOMATIC", LIBNET_JOIN_AUTOMATIC);
 942         PyModule_AddIntConstant(m, "LIBNET_JOIN_SPECIFIED", LIBNET_JOIN_SPECIFIED);
 943
 944         return m;
 945 }