source4/param/provision.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Samba utility functions
   4    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008-2009
   5    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include <Python.h>
  22 #include "includes.h"
  23 #include "auth/auth.h"
  24 #include "ldb/include/ldb.h"
  25 #include "ldb_errors.h"
  26 #include "libcli/raw/libcliraw.h"
  27 #include "librpc/ndr/libndr.h"
  28
  29 #include "param/param.h"
  30 #include "param/provision.h"
  31 #include "param/secrets.h"
  32 #include "lib/talloc/pytalloc.h"
  33 #include "librpc/rpc/pyrpc.h"
  34 #include "scripting/python/modules.h"
  35 #include "lib/ldb/pyldb.h"
  36 #include "param/pyparam.h"
  37 #include "dynconfig/dynconfig.h"
  38
  39 static PyObject *provision_module(void)
  40 {
  41         PyObject *name = PyString_FromString("samba.provision");
  42         if (name == NULL)
  43                 return NULL;
  44         return PyImport_Import(name);
  45 }
  46
  47 static PyObject *schema_module(void)
  48 {
  49         PyObject *name = PyString_FromString("samba.schema");
  50         if (name == NULL)
  51                 return NULL;
  52         return PyImport_Import(name);
  53 }
  54
  55 static PyObject *ldb_module(void)
  56 {
  57         PyObject *name = PyString_FromString("ldb");
  58         if (name == NULL)
  59                 return NULL;
  60         return PyImport_Import(name);
  61 }
  62
  63 static PyObject *PyLdb_FromLdbContext(struct ldb_context *ldb_ctx)
  64 {
  65         PyLdbObject *ret;
  66         PyObject *ldb_mod = ldb_module();
  67         PyTypeObject *ldb_ctx_type;
  68         if (ldb_mod == NULL)
  69                 return NULL;
  70
  71         ldb_ctx_type = (PyTypeObject *)PyObject_GetAttrString(ldb_mod, "Ldb");
  72
  73         ret = (PyLdbObject *)ldb_ctx_type->tp_alloc(ldb_ctx_type, 0);
  74         if (ret == NULL) {
  75                 PyErr_NoMemory();
  76                 return NULL;
  77         }
  78         ret->mem_ctx = talloc_new(NULL);
  79         ret->ldb_ctx = talloc_reference(ret->mem_ctx, ldb_ctx);
  80         return (PyObject *)ret;
  81 }
  82
  83 NTSTATUS provision_bare(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx,
  84                         struct provision_settings *settings,
  85                         struct provision_result *result)
  86 {
  87         const char *configfile;
  88         PyObject *provision_mod, *provision_dict, *provision_fn, *py_result, *parameters, *py_lp_ctx;
  89
  90         DEBUG(0,("Provision for Become-DC test using python\n"));
  91
  92         Py_Initialize();
  93         py_update_path("bin"); /* FIXME: Can't assume this is always the case */
  94
  95         provision_mod = provision_module();
  96
  97         if (provision_mod == NULL) {
  98                 PyErr_Print();
  99                 DEBUG(0, ("Unable to import provision Python module.\n"));
 100                 return NT_STATUS_UNSUCCESSFUL;
 101         }
 102
 103         provision_dict = PyModule_GetDict(provision_mod);
 104
 105         if (provision_dict == NULL) {
 106                 DEBUG(0, ("Unable to get dictionary for provision module\n"));
 107                 return NT_STATUS_UNSUCCESSFUL;
 108         }
 109
 110         provision_fn = PyDict_GetItemString(provision_dict, "provision_become_dc");
 111         if (provision_fn == NULL) {
 112                 PyErr_Print();
 113                 DEBUG(0, ("Unable to get provision_become_dc function\n"));
 114                 return NT_STATUS_UNSUCCESSFUL;
 115         }
 116
 117         DEBUG(0,("New Server in Site[%s]\n",
 118                  settings->site_name));
 119
 120         DEBUG(0,("DSA Instance [%s]\n"
 121                 "\tinvocationId[%s]\n",
 122                 settings->ntds_dn_str,
 123                 settings->invocation_id == NULL?"None":GUID_string(mem_ctx, settings->invocation_id)));
 124
 125         DEBUG(0,("Paths under targetdir[%s]\n",
 126                  settings->targetdir));
 127         parameters = PyDict_New();
 128
 129         configfile = lpcfg_configfile(lp_ctx);
 130         if (configfile != NULL) {
 131                 PyDict_SetItemString(parameters, "smbconf",
 132                                      PyString_FromString(configfile));
 133         }
 134
 135         PyDict_SetItemString(parameters, "rootdn",
 136                                                  PyString_FromString(settings->root_dn_str));
 137         if (settings->targetdir != NULL)
 138                 PyDict_SetItemString(parameters, "targetdir",
 139                                                          PyString_FromString(settings->targetdir));
 140         if (file_exist("setup/provision.smb.conf.dc")) {
 141                 PyDict_SetItemString(parameters, "setup_dir",
 142                                      PyString_FromString("setup"));
 143         } else {
 144                 PyDict_SetItemString(parameters, "setup_dir",
 145                                      PyString_FromString(dyn_SETUPDIR));
 146         }
 147         PyDict_SetItemString(parameters, "hostname",
 148                                                  PyString_FromString(settings->netbios_name));
 149         PyDict_SetItemString(parameters, "domain",
 150                                                  PyString_FromString(settings->domain));
 151         PyDict_SetItemString(parameters, "realm",
 152                                                  PyString_FromString(settings->realm));
 153         if (settings->root_dn_str)
 154                 PyDict_SetItemString(parameters, "rootdn",
 155                                      PyString_FromString(settings->root_dn_str));
 156
 157         if (settings->domain_dn_str)
 158                 PyDict_SetItemString(parameters, "domaindn",
 159                                      PyString_FromString(settings->domain_dn_str));
 160
 161         if (settings->schema_dn_str)
 162                 PyDict_SetItemString(parameters, "schemadn",
 163                                      PyString_FromString(settings->schema_dn_str));
 164
 165         if (settings->config_dn_str)
 166                 PyDict_SetItemString(parameters, "configdn",
 167                                      PyString_FromString(settings->config_dn_str));
 168
 169         if (settings->server_dn_str)
 170                 PyDict_SetItemString(parameters, "serverdn",
 171                                      PyString_FromString(settings->server_dn_str));
 172
 173         if (settings->site_name)
 174                 PyDict_SetItemString(parameters, "sitename",
 175                                      PyString_FromString(settings->site_name));
 176
 177         PyDict_SetItemString(parameters, "machinepass",
 178                              PyString_FromString(settings->machine_password));
 179
 180
 181         PyDict_SetItemString(parameters, "debuglevel", PyInt_FromLong(DEBUGLEVEL));
 182
 183         py_result = PyEval_CallObjectWithKeywords(provision_fn, NULL, parameters);
 184
 185         Py_DECREF(parameters);
 186
 187         if (py_result == NULL) {
 188                 PyErr_Print();
 189                 PyErr_Clear();
 190                 return NT_STATUS_UNSUCCESSFUL;
 191         }
 192
 193         result->domaindn = talloc_strdup(mem_ctx, PyString_AsString(PyObject_GetAttrString(py_result, "domaindn")));
 194
 195         /* FIXME paths */
 196         py_lp_ctx = PyObject_GetAttrString(py_result, "lp");
 197         if (py_lp_ctx == NULL) {
 198                 DEBUG(0, ("Missing 'lp' attribute"));
 199                 return NT_STATUS_UNSUCCESSFUL;
 200         }
 201         result->lp_ctx = lpcfg_from_py_object(mem_ctx, py_lp_ctx);
 202         result->samdb = PyLdb_AsLdbContext(PyObject_GetAttrString(py_result, "samdb"));
 203
 204         return NT_STATUS_OK;
 205 }
 206
 207 static PyObject *py_dom_sid_FromSid(struct dom_sid *sid)
 208 {
 209         PyObject *mod_security, *dom_sid_Type;
 210
 211         mod_security = PyImport_ImportModule("samba.dcerpc.security");
 212         if (mod_security == NULL)
 213                 return NULL;
 214
 215         dom_sid_Type = PyObject_GetAttrString(mod_security, "dom_sid");
 216         if (dom_sid_Type == NULL)
 217                 return NULL;
 218
 219         return py_talloc_reference((PyTypeObject *)dom_sid_Type, sid);
 220 }
 221
 222 NTSTATUS provision_store_self_join(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx,
 223                                    struct tevent_context *event_ctx,
 224                                    struct provision_store_self_join_settings *settings,
 225                                    const char **error_string)
 226 {
 227         int ret;
 228         PyObject *provision_mod, *provision_dict, *provision_fn, *py_result, *parameters, *py_sid;
 229         struct ldb_context *ldb;
 230         TALLOC_CTX *tmp_mem = talloc_new(mem_ctx);
 231         if (!tmp_mem) {
 232                 return NT_STATUS_NO_MEMORY;
 233         }
 234
 235         /* Open the secrets database */
 236         ldb = secrets_db_connect(tmp_mem, lp_ctx);
 237         if (!ldb) {
 238                 *error_string
 239                         = talloc_asprintf(mem_ctx,
 240                                           "Could not open secrets database");
 241                 talloc_free(tmp_mem);
 242                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
 243         }
 244
 245         ret = ldb_transaction_start(ldb);
 246
 247         if (ret != LDB_SUCCESS) {
 248                 *error_string
 249                         = talloc_asprintf(mem_ctx,
 250                                           "Could not start transaction on secrets database: %s", ldb_errstring(ldb));
 251                 talloc_free(tmp_mem);
 252                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
 253         }
 254
 255         Py_Initialize();
 256         py_update_path("bin"); /* FIXME: Can't assume this is always the case */
 257         provision_mod = provision_module();
 258
 259         if (provision_mod == NULL) {
 260                 PyErr_Print();
 261                 *error_string
 262                         = talloc_asprintf(mem_ctx, "Unable to import provision Python module.");
 263                 talloc_free(tmp_mem);
 264                 return NT_STATUS_UNSUCCESSFUL;
 265         }
 266
 267         provision_dict = PyModule_GetDict(provision_mod);
 268
 269         if (provision_dict == NULL) {
 270                 *error_string
 271                         = talloc_asprintf(mem_ctx, "Unable to get dictionary for provision module");
 272                 talloc_free(tmp_mem);
 273                 return NT_STATUS_UNSUCCESSFUL;
 274         }
 275
 276         provision_fn = PyDict_GetItemString(provision_dict, "secretsdb_self_join");
 277         if (provision_fn == NULL) {
 278                 PyErr_Print();
 279                 *error_string
 280                         = talloc_asprintf(mem_ctx, "Unable to get provision_become_dc function");
 281                 talloc_free(tmp_mem);
 282                 return NT_STATUS_UNSUCCESSFUL;
 283         }
 284
 285         parameters = PyDict_New();
 286
 287         PyDict_SetItemString(parameters, "secretsdb",
 288                              PyLdb_FromLdbContext(ldb));
 289         PyDict_SetItemString(parameters, "domain",
 290                              PyString_FromString(settings->domain_name));
 291         if (settings->realm != NULL) {
 292                 PyDict_SetItemString(parameters, "realm",
 293                                      PyString_FromString(settings->realm));
 294         }
 295         PyDict_SetItemString(parameters, "machinepass",
 296                              PyString_FromString(settings->machine_password));
 297         PyDict_SetItemString(parameters, "netbiosname",
 298                              PyString_FromString(settings->netbios_name));
 299
 300         py_sid = py_dom_sid_FromSid(settings->domain_sid);
 301         if (py_sid == NULL) {
 302                 Py_DECREF(parameters);
 303                 goto failure;
 304         }
 305
 306         PyDict_SetItemString(parameters, "domainsid",
 307                              py_sid);
 308
 309         PyDict_SetItemString(parameters, "secure_channel_type",
 310                        PyInt_FromLong(settings->secure_channel_type));
 311
 312         PyDict_SetItemString(parameters, "key_version_number",
 313                        PyInt_FromLong(settings->key_version_number));
 314
 315         py_result = PyEval_CallObjectWithKeywords(provision_fn, NULL, parameters);
 316
 317         Py_DECREF(parameters);
 318
 319         if (py_result == NULL) {
 320                 goto failure;
 321         }
 322
 323         ret = ldb_transaction_commit(ldb);
 324         if (ret != LDB_SUCCESS) {
 325                 *error_string
 326                         = talloc_asprintf(mem_ctx,
 327                                           "Could not commit transaction on secrets database: %s", ldb_errstring(ldb));
 328                 talloc_free(tmp_mem);
 329                 return NT_STATUS_INTERNAL_DB_ERROR;
 330         }
 331
 332         talloc_free(tmp_mem);
 333
 334         return NT_STATUS_OK;
 335
 336 failure:
 337         ldb_transaction_cancel(ldb);
 338         talloc_free(tmp_mem);
 339
 340         PyErr_Print();
 341         PyErr_Clear();
 342         return NT_STATUS_UNSUCCESSFUL;
 343 }
 344
 345
 346 struct ldb_context *provision_get_schema(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx,
 347                                          DATA_BLOB *override_prefixmap)
 348 {
 349         const char *setupdir;
 350         PyObject *schema_mod, *schema_dict, *schema_fn, *py_result, *parameters;
 351
 352         DEBUG(0,("Schema for DRS tests using python\n"));
 353
 354         Py_Initialize();
 355         py_update_path("bin"); /* FIXME: Can't assume this is always the case */
 356
 357         schema_mod = schema_module();
 358
 359         if (schema_mod == NULL) {
 360                 PyErr_Print();
 361                 DEBUG(0, ("Unable to import schema Python module.\n"));
 362                 return NULL;
 363         }
 364
 365         schema_dict = PyModule_GetDict(schema_mod);
 366
 367         if (schema_dict == NULL) {
 368                 DEBUG(0, ("Unable to get dictionary for schema module\n"));
 369                 return NULL;
 370         }
 371
 372         schema_fn = PyDict_GetItemString(schema_dict, "ldb_with_schema");
 373         if (schema_fn == NULL) {
 374                 PyErr_Print();
 375                 DEBUG(0, ("Unable to get schema_get_ldb function\n"));
 376                 return NULL;
 377         }
 378
 379         parameters = PyDict_New();
 380
 381         setupdir = lpcfg_setupdir(lp_ctx);
 382         PyDict_SetItemString(parameters, "setup_dir",
 383                              PyString_FromString(setupdir));
 384         if (override_prefixmap) {
 385                 PyDict_SetItemString(parameters, "override_prefixmap",
 386                                      PyString_FromStringAndSize((const char *)override_prefixmap->data,
 387                                                                 override_prefixmap->length));
 388         }
 389
 390         py_result = PyEval_CallObjectWithKeywords(schema_fn, NULL, parameters);
 391
 392         Py_DECREF(parameters);
 393
 394         if (py_result == NULL) {
 395                 PyErr_Print();
 396                 PyErr_Clear();
 397                 return NULL;
 398         }
 399
 400         return PyLdb_AsLdbContext(PyObject_GetAttrString(py_result, "ldb"));
 401 }