source3/python/py_lsa.c

   1 /*
   2    Python wrappers for DCERPC/SMB client routines.
   3
   4    Copyright (C) Tim Potter, 2002
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "python/py_lsa.h"
  22
  23 PyObject *new_lsa_policy_hnd_object(struct cli_state *cli, TALLOC_CTX *mem_ctx,
  24                                     POLICY_HND *pol)
  25 {
  26         lsa_policy_hnd_object *o;
  27
  28         o = PyObject_New(lsa_policy_hnd_object, &lsa_policy_hnd_type);
  29
  30         o->cli = cli;
  31         o->mem_ctx = mem_ctx;
  32         memcpy(&o->pol, pol, sizeof(POLICY_HND));
  33
  34         return (PyObject*)o;
  35 }
  36
  37 /*
  38  * Exceptions raised by this module
  39  */
  40
  41 PyObject *lsa_error;            /* This indicates a non-RPC related error
  42                                    such as name lookup failure */
  43
  44 PyObject *lsa_ntstatus;         /* This exception is raised when a RPC call
  45                                    returns a status code other than
  46                                    NT_STATUS_OK */
  47
  48 /*
  49  * Open/close lsa handles
  50  */
  51
  52 static PyObject *lsa_open_policy(PyObject *self, PyObject *args,
  53                                 PyObject *kw)
  54 {
  55         static char *kwlist[] = { "servername", "creds", "access", NULL };
  56         char *server, *errstr;
  57         PyObject *creds = NULL, *result;
  58         uint32 desired_access = MAXIMUM_ALLOWED_ACCESS;
  59         struct cli_state *cli;
  60         NTSTATUS ntstatus;
  61         TALLOC_CTX *mem_ctx;
  62         POLICY_HND hnd;
  63
  64         if (!PyArg_ParseTupleAndKeywords(
  65                     args, kw, "s|O!i", kwlist, &server, &PyDict_Type,
  66                     &creds, &desired_access))
  67                 return NULL;
  68
  69         if (!(cli = open_pipe_creds(
  70                       server, creds, cli_lsa_initialise, &errstr))) {
  71                 PyErr_SetString(lsa_error, errstr);
  72                 free(errstr);
  73                 return NULL;
  74         }
  75
  76         if (!(mem_ctx = talloc_init())) {
  77                 PyErr_SetString(
  78                         lsa_error, "unable to initialise talloc context\n");
  79                 return NULL;
  80         }
  81
  82         ntstatus = cli_lsa_open_policy(cli, mem_ctx, True,
  83                                        SEC_RIGHTS_MAXIMUM_ALLOWED, &hnd);
  84
  85         if (!NT_STATUS_IS_OK(ntstatus)) {
  86                 cli_shutdown(cli);
  87                 SAFE_FREE(cli);
  88                 PyErr_SetObject(lsa_ntstatus, py_ntstatus_tuple(ntstatus));
  89                 return NULL;
  90         }
  91
  92         result = new_lsa_policy_hnd_object(cli, mem_ctx, &hnd);
  93
  94         return result;
  95 }
  96
  97 static PyObject *lsa_close(PyObject *self, PyObject *args, PyObject *kw)
  98 {
  99         PyObject *po;
 100         lsa_policy_hnd_object *hnd;
 101         NTSTATUS result;
 102
 103         /* Parse parameters */
 104
 105         if (!PyArg_ParseTuple(args, "O!", &lsa_policy_hnd_type, &po))
 106                 return NULL;
 107
 108         hnd = (lsa_policy_hnd_object *)po;
 109
 110         /* Call rpc function */
 111
 112         result = cli_lsa_close(hnd->cli, hnd->mem_ctx, &hnd->pol);
 113
 114         /* Cleanup samba stuff */
 115
 116         cli_shutdown(hnd->cli);
 117         talloc_destroy(hnd->mem_ctx);
 118
 119         /* Return value */
 120
 121         Py_INCREF(Py_None);
 122         return Py_None;
 123 }
 124
 125 static PyObject *lsa_lookup_names(PyObject *self, PyObject *args)
 126 {
 127         PyObject *py_names, *result;
 128         NTSTATUS ntstatus;
 129         lsa_policy_hnd_object *hnd = (lsa_policy_hnd_object *)self;
 130         int num_names, i;
 131         const char **names;
 132         DOM_SID *sids;
 133         uint32 *name_types;
 134
 135         if (!PyArg_ParseTuple(args, "O", &py_names))
 136                 return NULL;
 137
 138         if (!PyList_Check(py_names) && !PyString_Check(py_names)) {
 139                 PyErr_SetString(PyExc_TypeError, "must be list or string");
 140                 return NULL;
 141         }
 142
 143         if (PyList_Check(py_names)) {
 144
 145                 /* Convert list to char ** array */
 146
 147                 num_names = PyList_Size(py_names);
 148                 names = (const char **)talloc(
 149                         hnd->mem_ctx, num_names * sizeof(char *));
 150
 151                 for (i = 0; i < num_names; i++) {
 152                         PyObject *obj = PyList_GetItem(py_names, i);
 153
 154                         names[i] = talloc_strdup(hnd->mem_ctx, PyString_AsString(obj));
 155                 }
 156
 157         } else {
 158
 159                 /* Just a single element */
 160
 161                 num_names = 1;
 162                 names = (const char **)talloc(hnd->mem_ctx, sizeof(char *));
 163
 164                 names[0] = PyString_AsString(py_names);
 165         }
 166
 167         ntstatus = cli_lsa_lookup_names(hnd->cli, hnd->mem_ctx, &hnd->pol,
 168                                         num_names, names, &sids, &name_types);
 169
 170         if (!NT_STATUS_IS_OK(ntstatus) && NT_STATUS_V(ntstatus) != 0x107) {
 171                 PyErr_SetObject(lsa_ntstatus, py_ntstatus_tuple(ntstatus));
 172                 return NULL;
 173         }
 174
 175         result = PyList_New(num_names);
 176
 177         for (i = 0; i < num_names; i++) {
 178                 PyObject *sid_obj, *obj;
 179
 180                 py_from_SID(&sid_obj, &sids[i]);
 181
 182                 obj = Py_BuildValue("(Oi)", sid_obj, name_types[i]);
 183
 184                 PyList_SetItem(result, i, obj);
 185         }
 186
 187         return result;
 188 }
 189
 190 static PyObject *lsa_lookup_sids(PyObject *self, PyObject *args,
 191                                  PyObject *kw)
 192 {
 193         PyObject *py_sids, *result;
 194         NTSTATUS ntstatus;
 195         int num_sids, i;
 196         char **domains, **names;
 197         uint32 *types;
 198         lsa_policy_hnd_object *hnd = (lsa_policy_hnd_object *)self;
 199         DOM_SID *sids;
 200
 201         if (!PyArg_ParseTuple(args, "O", &py_sids))
 202                 return NULL;
 203
 204         if (!PyList_Check(py_sids) && !PyString_Check(py_sids)) {
 205                 PyErr_SetString(PyExc_TypeError, "must be list or string");
 206                 return NULL;
 207         }
 208
 209         if (PyList_Check(py_sids)) {
 210
 211                 /* Convert dictionary to char ** array */
 212
 213                 num_sids = PyList_Size(py_sids);
 214                 sids = (DOM_SID *)talloc(hnd->mem_ctx, num_sids * sizeof(DOM_SID));
 215
 216                 memset(sids, 0, num_sids * sizeof(DOM_SID));
 217
 218                 for (i = 0; i < num_sids; i++) {
 219                         PyObject *obj = PyList_GetItem(py_sids, i);
 220
 221                         string_to_sid(&sids[i], PyString_AsString(obj));
 222                 }
 223
 224         } else {
 225
 226                 /* Just a single element */
 227
 228                 num_sids = 1;
 229                 sids = (DOM_SID *)talloc(hnd->mem_ctx, sizeof(DOM_SID));
 230
 231                 string_to_sid(&sids[0], PyString_AsString(py_sids));
 232         }
 233
 234         ntstatus = cli_lsa_lookup_sids(hnd->cli, hnd->mem_ctx, &hnd->pol,
 235                                        num_sids, sids, &domains, &names,
 236                                        &types);
 237
 238         if (!NT_STATUS_IS_OK(ntstatus)) {
 239                 PyErr_SetObject(lsa_ntstatus, py_ntstatus_tuple(ntstatus));
 240                 return NULL;
 241         }
 242
 243         result = PyList_New(num_sids);
 244
 245         for (i = 0; i < num_sids; i++) {
 246                 PyObject *obj;
 247
 248                 obj = Py_BuildValue("{sssssi}", "username", names[i],
 249                                     "domain", domains[i], "name_type",
 250                                     types[i]);
 251
 252                 PyList_SetItem(result, i, obj);
 253         }
 254
 255         return result;
 256 }
 257
 258 static PyObject *lsa_enum_trust_dom(PyObject *self, PyObject *args)
 259 {
 260         lsa_policy_hnd_object *hnd = (lsa_policy_hnd_object *)self;
 261         NTSTATUS ntstatus;
 262         uint32 enum_ctx = 0, num_domains, i;
 263         char **domain_names;
 264         DOM_SID *domain_sids;
 265         PyObject *result;
 266
 267         if (!PyArg_ParseTuple(args, ""))
 268                 return NULL;
 269
 270         ntstatus = cli_lsa_enum_trust_dom(hnd->cli, hnd->mem_ctx,
 271                                           &hnd->pol, &enum_ctx,
 272                                           &num_domains, &domain_names,
 273                                           &domain_sids);
 274
 275         if (!NT_STATUS_IS_OK(ntstatus)) {
 276                 PyErr_SetObject(lsa_ntstatus, py_ntstatus_tuple(ntstatus));
 277                 return NULL;
 278         }
 279
 280         result = PyList_New(num_domains);
 281
 282         for (i = 0; i < num_domains; i++) {
 283                 fstring sid_str;
 284
 285                 sid_to_string(sid_str, &domain_sids[i]);
 286                 PyList_SetItem(
 287                         result, i,
 288                         Py_BuildValue("(ss)", domain_names[i], sid_str));
 289         }
 290
 291         return result;
 292 }
 293
 294 /*
 295  * Method dispatch tables
 296  */
 297
 298 static PyMethodDef lsa_hnd_methods[] = {
 299
 300         /* SIDs<->names */
 301
 302         { "lookup_sids", (PyCFunction)lsa_lookup_sids,
 303           METH_VARARGS | METH_KEYWORDS,
 304           "Convert sids to names." },
 305
 306         { "lookup_names", (PyCFunction)lsa_lookup_names,
 307           METH_VARARGS | METH_KEYWORDS,
 308           "Convert names to sids." },
 309
 310         /* Trusted domains */
 311
 312         { "enum_trusted_domains", (PyCFunction)lsa_enum_trust_dom,
 313           METH_VARARGS,
 314           "Enumerate trusted domains." },
 315
 316         { NULL }
 317 };
 318
 319 static void py_lsa_policy_hnd_dealloc(PyObject* self)
 320 {
 321         PyObject_Del(self);
 322 }
 323
 324 static PyObject *py_lsa_policy_hnd_getattr(PyObject *self, char *attrname)
 325 {
 326         return Py_FindMethod(lsa_hnd_methods, self, attrname);
 327 }
 328
 329 PyTypeObject lsa_policy_hnd_type = {
 330         PyObject_HEAD_INIT(NULL)
 331         0,
 332         "LSA Policy Handle",
 333         sizeof(lsa_policy_hnd_object),
 334         0,
 335         py_lsa_policy_hnd_dealloc, /*tp_dealloc*/
 336         0,          /*tp_print*/
 337         py_lsa_policy_hnd_getattr,          /*tp_getattr*/
 338         0,          /*tp_setattr*/
 339         0,          /*tp_compare*/
 340         0,          /*tp_repr*/
 341         0,          /*tp_as_number*/
 342         0,          /*tp_as_sequence*/
 343         0,          /*tp_as_mapping*/
 344         0,          /*tp_hash */
 345 };
 346
 347 static PyMethodDef lsa_methods[] = {
 348
 349         /* Open/close lsa handles */
 350
 351         { "open_policy", (PyCFunction)lsa_open_policy,
 352           METH_VARARGS | METH_KEYWORDS,
 353           "Open a policy handle" },
 354
 355         { "close", (PyCFunction)lsa_close,
 356           METH_VARARGS,
 357           "Close a policy handle" },
 358
 359         { NULL }
 360 };
 361
 362 static struct const_vals {
 363         char *name;
 364         uint32 value;
 365 } module_const_vals[] = {
 366         { NULL }
 367 };
 368
 369 static void const_init(PyObject *dict)
 370 {
 371         struct const_vals *tmp;
 372         PyObject *obj;
 373
 374         for (tmp = module_const_vals; tmp->name; tmp++) {
 375                 obj = PyInt_FromLong(tmp->value);
 376                 PyDict_SetItemString(dict, tmp->name, obj);
 377                 Py_DECREF(obj);
 378         }
 379 }
 380
 381 /*
 382  * Module initialisation
 383  */
 384
 385 void initlsa(void)
 386 {
 387         PyObject *module, *dict;
 388
 389         /* Initialise module */
 390
 391         module = Py_InitModule("lsa", lsa_methods);
 392         dict = PyModule_GetDict(module);
 393
 394         lsa_error = PyErr_NewException("lsa.error", NULL, NULL);
 395         PyDict_SetItemString(dict, "error", lsa_error);
 396
 397         lsa_ntstatus = PyErr_NewException("lsa.ntstatus", NULL, NULL);
 398         PyDict_SetItemString(dict, "ntstatus", lsa_ntstatus);
 399
 400         /* Initialise policy handle object */
 401
 402         lsa_policy_hnd_type.ob_type = &PyType_Type;
 403
 404         /* Initialise constants */
 405
 406         const_init(dict);
 407
 408         /* Do samba initialisation */
 409
 410         py_samba_init();
 411
 412         setup_logging("lsa", True);
 413         DEBUGLEVEL = 10;
 414 }