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