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 "lib/ldb_wrap.h"
  25 #include "ldb/include/ldb.h"
  26 #include "ldb_errors.h"
  27 #include "libcli/raw/libcliraw.h"
  28 #include "librpc/ndr/libndr.h"
  29
  30 #include "param/param.h"
  31 #include "param/provision.h"
  32 #include "param/secrets.h"
  33 #include "lib/talloc/pytalloc.h"
  34 #include "librpc/rpc/pyrpc.h"
  35 #include "scripting/python/modules.h"
  36 #include "lib/ldb/pyldb.h"
  37 #include "param/pyparam.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;
  89
  90         DEBUG(0,("Provision for Become-DC test using python\n"));
  91
  92         py_load_samba_modules();
  93         Py_Initialize();
  94         py_update_path("bin"); /* FIXME: Can't assume this is always the case */
  95
  96         provision_mod = provision_module();
  97
  98         if (provision_mod == NULL) {
  99                 PyErr_Print();
 100                 DEBUG(0, ("Unable to import provision Python module.\n"));
 101                 return NT_STATUS_UNSUCCESSFUL;
 102         }
 103
 104         provision_dict = PyModule_GetDict(provision_mod);
 105
 106         if (provision_dict == NULL) {
 107                 DEBUG(0, ("Unable to get dictionary for provision module\n"));
 108                 return NT_STATUS_UNSUCCESSFUL;
 109         }
 110
 111         provision_fn = PyDict_GetItemString(provision_dict, "provision_become_dc");
 112         if (provision_fn == NULL) {
 113                 PyErr_Print();
 114                 DEBUG(0, ("Unable to get provision_become_dc function\n"));
 115                 return NT_STATUS_UNSUCCESSFUL;
 116         }
 117
 118         DEBUG(0,("New Server in Site[%s]\n",
 119                  settings->site_name));
 120
 121         DEBUG(0,("DSA Instance [%s]\n"
 122                 "\tinvocationId[%s]\n",
 123                 settings->ntds_dn_str,
 124                 settings->invocation_id == NULL?"None":GUID_string(mem_ctx, settings->invocation_id)));
 125
 126         DEBUG(0,("Pathes under targetdir[%s]\n",
 127                  settings->targetdir));
 128         parameters = PyDict_New();
 129
 130         configfile = lp_configfile(lp_ctx);
 131         if (configfile != NULL) {
 132                 PyDict_SetItemString(parameters, "smbconf",
 133                                      PyString_FromString(configfile));
 134         }
 135
 136         PyDict_SetItemString(parameters, "rootdn",
 137                                                  PyString_FromString(settings->root_dn_str));
 138         if (settings->targetdir != NULL)
 139                 PyDict_SetItemString(parameters, "targetdir",
 140                                                          PyString_FromString(settings->targetdir));
 141         PyDict_SetItemString(parameters, "setup_dir",
 142                              PyString_FromString("setup"));
 143         PyDict_SetItemString(parameters, "hostname",
 144                                                  PyString_FromString(settings->netbios_name));
 145         PyDict_SetItemString(parameters, "domain",
 146                                                  PyString_FromString(settings->domain));
 147         PyDict_SetItemString(parameters, "realm",
 148                                                  PyString_FromString(settings->realm));
 149         if (settings->root_dn_str)
 150                 PyDict_SetItemString(parameters, "rootdn",
 151                                      PyString_FromString(settings->root_dn_str));
 152
 153         if (settings->domain_dn_str)
 154                 PyDict_SetItemString(parameters, "domaindn",
 155                                      PyString_FromString(settings->domain_dn_str));
 156
 157         if (settings->schema_dn_str)
 158                 PyDict_SetItemString(parameters, "schemadn",
 159                                      PyString_FromString(settings->schema_dn_str));
 160
 161         if (settings->config_dn_str)
 162                 PyDict_SetItemString(parameters, "configdn",
 163                                      PyString_FromString(settings->config_dn_str));
 164
 165         if (settings->server_dn_str)
 166                 PyDict_SetItemString(parameters, "serverdn",
 167                                      PyString_FromString(settings->server_dn_str));
 168
 169         if (settings->site_name)
 170                 PyDict_SetItemString(parameters, "sitename",
 171                                      PyString_FromString(settings->site_name));
 172
 173         PyDict_SetItemString(parameters, "machinepass",
 174                              PyString_FromString(settings->machine_password));
 175
 176
 177         PyDict_SetItemString(parameters, "debuglevel", PyInt_FromLong(DEBUGLEVEL));
 178
 179         py_result = PyEval_CallObjectWithKeywords(provision_fn, NULL, parameters);
 180
 181         Py_DECREF(parameters);
 182
 183         if (py_result == NULL) {
 184                 PyErr_Print();
 185                 PyErr_Clear();
 186                 return NT_STATUS_UNSUCCESSFUL;
 187         }
 188
 189         result->domaindn = talloc_strdup(mem_ctx, PyString_AsString(PyObject_GetAttrString(py_result, "domaindn")));
 190
 191         /* FIXME paths */
 192         result->lp_ctx = lp_from_py_object(PyObject_GetAttrString(py_result, "lp"));
 193         result->samdb = PyLdb_AsLdbContext(PyObject_GetAttrString(py_result, "samdb"));
 194
 195         return NT_STATUS_OK;
 196 }
 197
 198 static PyObject *py_dom_sid_FromSid(struct dom_sid *sid)
 199 {
 200         PyObject *mod_security, *dom_sid_Type;
 201
 202         mod_security = PyImport_ImportModule("samba.dcerpc.security");
 203         if (mod_security == NULL)
 204                 return NULL;
 205
 206         dom_sid_Type = PyObject_GetAttrString(mod_security, "dom_sid");
 207         if (dom_sid_Type == NULL)
 208                 return NULL;
 209
 210         return py_talloc_reference((PyTypeObject *)dom_sid_Type, sid);
 211 }
 212
 213 NTSTATUS provision_store_self_join(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx,
 214                                    struct tevent_context *event_ctx,
 215                                    struct provision_store_self_join_settings *settings,
 216                                    const char **error_string)
 217 {
 218         int ret;
 219         PyObject *provision_mod, *provision_dict, *provision_fn, *py_result, *parameters, *py_sid;
 220         struct ldb_context *ldb;
 221         TALLOC_CTX *tmp_mem = talloc_new(mem_ctx);
 222         if (!tmp_mem) {
 223                 return NT_STATUS_NO_MEMORY;
 224         }
 225
 226         /* Open the secrets database */
 227         ldb = secrets_db_connect(tmp_mem, event_ctx, lp_ctx);
 228         if (!ldb) {
 229                 *error_string
 230                         = talloc_asprintf(mem_ctx,
 231                                           "Could not open secrets database");
 232                 talloc_free(tmp_mem);
 233                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
 234         }
 235
 236         ret = ldb_transaction_start(ldb);
 237
 238         if (ret != LDB_SUCCESS) {
 239                 *error_string
 240                         = talloc_asprintf(mem_ctx,
 241                                           "Could not start transaction on secrets database: %s", ldb_errstring(ldb));
 242                 talloc_free(tmp_mem);
 243                 return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
 244         }
 245
 246         py_load_samba_modules();
 247         Py_Initialize();
 248         py_update_path("bin"); /* FIXME: Can't assume this is always the case */
 249         provision_mod = provision_module();
 250
 251         if (provision_mod == NULL) {
 252                 PyErr_Print();
 253                 *error_string
 254                         = talloc_asprintf(mem_ctx, "Unable to import provision Python module.");
 255                 talloc_free(tmp_mem);
 256                 return NT_STATUS_UNSUCCESSFUL;
 257         }
 258
 259         provision_dict = PyModule_GetDict(provision_mod);
 260
 261         if (provision_dict == NULL) {
 262                 *error_string
 263                         = talloc_asprintf(mem_ctx, "Unable to get dictionary for provision module");
 264                 talloc_free(tmp_mem);
 265                 return NT_STATUS_UNSUCCESSFUL;
 266         }
 267
 268         provision_fn = PyDict_GetItemString(provision_dict, "secretsdb_self_join");
 269         if (provision_fn == NULL) {
 270                 PyErr_Print();
 271                 *error_string
 272                         = talloc_asprintf(mem_ctx, "Unable to get provision_become_dc function");
 273                 talloc_free(tmp_mem);
 274                 return NT_STATUS_UNSUCCESSFUL;
 275         }
 276
 277         parameters = PyDict_New();
 278
 279         PyDict_SetItemString(parameters, "secretsdb",
 280                              PyLdb_FromLdbContext(ldb));
 281         PyDict_SetItemString(parameters, "domain",
 282                              PyString_FromString(settings->domain_name));
 283         PyDict_SetItemString(parameters, "realm",
 284                              PyString_FromString(settings->realm));
 285         PyDict_SetItemString(parameters, "machinepass",
 286                              PyString_FromString(settings->machine_password));
 287         PyDict_SetItemString(parameters, "netbiosname",
 288                              PyString_FromString(settings->netbios_name));
 289
 290         py_sid = py_dom_sid_FromSid(settings->domain_sid);
 291         if (py_sid == NULL) {
 292                 Py_DECREF(parameters);
 293                 goto failure;
 294         }
 295
 296         PyDict_SetItemString(parameters, "domainsid",
 297                              py_sid);
 298
 299         PyDict_SetItemString(parameters, "secure_channel_type",
 300                        PyInt_FromLong(settings->secure_channel_type));
 301
 302         PyDict_SetItemString(parameters, "key_version_number",
 303                        PyInt_FromLong(settings->key_version_number));
 304
 305         py_result = PyEval_CallObjectWithKeywords(provision_fn, NULL, parameters);
 306
 307         Py_DECREF(parameters);
 308
 309         if (py_result == NULL) {
 310                 goto failure;
 311         }
 312
 313         ret = ldb_transaction_commit(ldb);
 314         if (ret != LDB_SUCCESS) {
 315                 *error_string
 316                         = talloc_asprintf(mem_ctx,
 317                                           "Could not commit transaction on secrets database: %s", ldb_errstring(ldb));
 318                 talloc_free(tmp_mem);
 319                 return NT_STATUS_INTERNAL_DB_ERROR;
 320         }
 321
 322         talloc_free(tmp_mem);
 323
 324         return NT_STATUS_OK;
 325
 326 failure:
 327         ldb_transaction_cancel(ldb);
 328         talloc_free(tmp_mem);
 329
 330         PyErr_Print();
 331         PyErr_Clear();
 332         return NT_STATUS_UNSUCCESSFUL;
 333 }
 334
 335
 336 struct ldb_context *provision_get_schema(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx)
 337 {
 338         const char *setupdir;
 339         PyObject *schema_mod, *schema_dict, *schema_fn, *py_result, *parameters;
 340
 341         DEBUG(0,("Schema for DRS tests using python\n"));
 342
 343         py_load_samba_modules();
 344         Py_Initialize();
 345         py_update_path("bin"); /* FIXME: Can't assume this is always the case */
 346
 347         schema_mod = schema_module();
 348
 349         if (schema_mod == NULL) {
 350                 PyErr_Print();
 351                 DEBUG(0, ("Unable to import schema Python module.\n"));
 352                 return NULL;
 353         }
 354
 355         schema_dict = PyModule_GetDict(schema_mod);
 356
 357         if (schema_dict == NULL) {
 358                 DEBUG(0, ("Unable to get dictionary for schema module\n"));
 359                 return NULL;
 360         }
 361
 362         schema_fn = PyDict_GetItemString(schema_dict, "ldb_with_schema");
 363         if (schema_fn == NULL) {
 364                 PyErr_Print();
 365                 DEBUG(0, ("Unable to get schema_get_ldb function\n"));
 366                 return NULL;
 367         }
 368
 369         parameters = PyDict_New();
 370
 371         setupdir = lp_setupdir(lp_ctx);
 372         PyDict_SetItemString(parameters, "setup_dir",
 373                              PyString_FromString(setupdir));
 374
 375         py_result = PyEval_CallObjectWithKeywords(schema_fn, NULL, parameters);
 376
 377         Py_DECREF(parameters);
 378
 379         if (py_result == NULL) {
 380                 PyErr_Print();
 381                 PyErr_Clear();
 382                 return NULL;
 383         }
 384
 385         return PyLdb_AsLdbContext(PyObject_GetAttrString(py_result, "ldb"));
 386 }