2 Unix SMB/CIFS implementation.
3 Copyright (C) Luke Morrison <luc785@hotmail.com> 2013
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "param/pyparam.h"
26 #include "../libds/common/flags.h"
27 #include "librpc/rpc/pyrpc_util.h"
28 #include "auth/credentials/pycredentials.h"
29 #include "libcli/util/pyerrors.h"
31 /* A Python C API module to use LIBGPO */
36 struct GROUP_POLICY_OBJECT *gpo_ptr;
37 struct GROUP_POLICY_OBJECT *head;
40 static void py_gpo_dealloc(GPO* self)
42 talloc_free(self->frame);
43 Py_TYPE(self)->tp_free((PyObject*)self);
46 static PyObject* py_gpo_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
51 static const char *kwlist[] = {"gpo_ptr", "talloc_ctx", NULL};
52 self = (GPO*)type->tp_alloc(type, 0);
53 if (PyArg_ParseTupleAndKeywords(args, kwds, "|OO", discard_const_p(char *, kwlist),
54 &c_obj, &talloc_obj)) {
55 self->gpo_ptr = PyCapsule_GetPointer(c_obj, NULL);
56 self->head = self->gpo_ptr;
57 self->frame = PyCapsule_GetPointer(talloc_obj, NULL);
61 return (PyObject*)self;
64 static int py_gpo_init(GPO *self, PyObject *args, PyObject *kwds)
69 #define GPO_getter(ATTR) \
70 static PyObject* GPO_get_##ATTR(GPO *self, void *closure) \
72 if (self->gpo_ptr->ATTR) \
73 return PyString_FromString(self->gpo_ptr->ATTR); \
78 GPO_getter(file_sys_path)
79 GPO_getter(display_name)
82 GPO_getter(user_extensions)
83 GPO_getter(machine_extensions)
85 static PyGetSetDef GPO_setters[] = {
86 {discard_const_p(char, "ds_path"), (getter)GPO_get_ds_path, NULL, NULL, NULL},
87 {discard_const_p(char, "file_sys_path"), (getter)GPO_get_file_sys_path, NULL, NULL, NULL},
88 {discard_const_p(char, "display_name"), (getter)GPO_get_display_name, NULL, NULL, NULL},
89 {discard_const_p(char, "name"), (getter)GPO_get_name, NULL, NULL, NULL},
90 {discard_const_p(char, "link"), (getter)GPO_get_link, NULL, NULL, NULL},
91 {discard_const_p(char, "user_extensions"), (getter)GPO_get_user_extensions, NULL, NULL, NULL},
92 {discard_const_p(char, "machine_extensions"), (getter)GPO_get_machine_extensions, NULL, NULL, NULL},
96 static PyObject *py_gpo_get_unix_path(GPO *self, PyObject *args, PyObject *kwds)
99 const char *cache_dir = NULL;
100 PyObject *ret = Py_None;
101 char *unix_path = NULL;
103 static const char *kwlist[] = {"cache_dir", NULL};
104 if (!PyArg_ParseTupleAndKeywords(args, kwds, "|s", discard_const_p(char *, kwlist), &cache_dir)) {
105 PyErr_SetString(PyExc_SystemError, "Failed to parse arguments to gpo_get_unix_path()");
110 cache_dir = cache_path(GPO_CACHE_DIR);
112 PyErr_SetString(PyExc_MemoryError, "Failed to determine gpo cache dir");
117 status = gpo_get_unix_path(self->frame, cache_dir, self->gpo_ptr, &unix_path);
118 if (!NT_STATUS_IS_OK(status)) {
119 PyErr_SetString(PyExc_SystemError, "Failed to determine gpo unix path");
123 ret = PyString_FromString(unix_path);
129 static PyMethodDef GPO_methods[] = {
130 {"get_unix_path", (PyCFunction)py_gpo_get_unix_path, METH_KEYWORDS, NULL },
134 static PyTypeObject GPOType;
135 static PyObject* py_gpo_iternext(GPO *self)
137 if (self->gpo_ptr && self->gpo_ptr->next) {
138 self->gpo_ptr = self->gpo_ptr->next;
139 return (PyObject *)self;
141 self->gpo_ptr = self->head;
142 PyErr_SetNone(PyExc_StopIteration);
147 static PyObject* py_gpo_iter(PyObject *self)
153 static PyTypeObject GPOType = {
154 .tp_name = "gpo.GROUP_POLICY_OBJECT",
155 .tp_basicsize = sizeof(GPO),
156 .tp_new = py_gpo_new,
157 .tp_free = PyObject_Del,
158 .tp_init = (initproc)py_gpo_init,
159 .tp_alloc = PyType_GenericAlloc,
160 .tp_dealloc = (destructor)py_gpo_dealloc,
161 .tp_doc = "GROUP_POLICY_OBJECT",
162 .tp_getset = GPO_setters,
163 .tp_methods = GPO_methods,
164 .tp_iter = py_gpo_iter,
165 .tp_iternext = (iternextfunc)py_gpo_iternext,
166 .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_ITER,
173 struct cli_credentials *cli_creds;
176 static void py_ads_dealloc(ADS* self)
178 ads_destroy(&(self->ads_ptr));
179 talloc_free(self->frame);
180 Py_TYPE(self)->tp_free((PyObject*)self);
183 static PyObject* py_ads_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
186 self = (ADS*)type->tp_alloc(type, 0);
187 return (PyObject*)self;
190 static PyObject* py_ads_connect(ADS *self);
191 static int py_ads_init(ADS *self, PyObject *args, PyObject *kwds)
193 const char *realm = NULL;
194 const char *workgroup = NULL;
195 const char *ldap_server = NULL;
196 PyObject *py_creds = NULL;
197 PyObject *lp_obj = NULL;
198 struct loadparm_context *lp_ctx = NULL;
200 static const char *kwlist[] = {"ldap_server", "loadparm_context", "credentials", NULL};
201 if (!PyArg_ParseTupleAndKeywords(args, kwds, "sO|O", discard_const_p(char *, kwlist), &ldap_server, &lp_obj, &py_creds))
204 self->frame = talloc_stackframe();
207 if (!py_check_dcerpc_type(py_creds, "samba.credentials",
209 PyErr_Format(PyExc_TypeError,
210 "Expected samba.credentaials "
211 "for credentials argument");
215 = PyCredentials_AsCliCredentials(py_creds);
219 lp_ctx = pytalloc_get_type(lp_obj, struct loadparm_context);
220 if (lp_ctx == NULL) {
224 if (!lp_load_initial_only(lp_ctx->szConfigFile)) return -1;
226 if (self->cli_creds) {
227 realm = cli_credentials_get_realm(self->cli_creds);
228 workgroup = cli_credentials_get_domain(self->cli_creds);
231 workgroup = lp_workgroup();
232 if (!ldap_server) return -1;
235 if ( !(self->ads_ptr = ads_init(realm, workgroup, ldap_server)) )
241 static PyObject* py_ads_connect(ADS *self)
244 if (self->cli_creds) {
245 self->ads_ptr->auth.user_name = SMB_STRDUP(cli_credentials_get_username(self->cli_creds));
246 self->ads_ptr->auth.flags |= ADS_AUTH_USER_CREDS;
247 self->ads_ptr->auth.password = SMB_STRDUP(cli_credentials_get_password(self->cli_creds));
248 self->ads_ptr->auth.realm = SMB_STRDUP(cli_credentials_get_realm(self->cli_creds));
250 status = ads_connect_user_creds(self->ads_ptr);
251 if (!ADS_ERR_OK(status)) {
252 PyErr_SetString(PyExc_SystemError, "ads_connect() failed");
258 if (asprintf(&(self->ads_ptr->auth.user_name), "%s$", lp_netbios_name()) == -1) {
259 PyErr_SetString(PyExc_SystemError, "Failed to asprintf");
262 self->ads_ptr->auth.flags |= ADS_AUTH_USER_CREDS;
263 if (!secrets_init()) {
264 PyErr_SetString(PyExc_SystemError, "secrets_init() failed");
267 if (!(passwd = secrets_fetch_machine_password(self->ads_ptr->server.workgroup, NULL, NULL))) {
268 PyErr_SetString(PyExc_SystemError, "Failed to fetch the machine account password");
271 self->ads_ptr->auth.password = smb_xstrdup(passwd);
272 self->ads_ptr->auth.realm = smb_xstrdup(self->ads_ptr->server.realm);
273 if (!strupper_m(self->ads_ptr->auth.realm)) {
274 PyErr_SetString(PyExc_SystemError, "Failed to strdup");
278 status = ads_connect(self->ads_ptr);
279 if (!ADS_ERR_OK(status)) {
280 PyErr_SetString(PyExc_SystemError, "ads_connect() failed");
288 /* Parameter mapping and functions for the GP_EXT struct */
291 /* Global methods aka do not need a special pyobject type */
292 static PyObject *py_gpo_get_sysvol_gpt_version(PyObject * self, PyObject * args)
294 TALLOC_CTX *tmp_ctx = NULL;
296 char *display_name = NULL;
297 uint32_t sysvol_version = 0;
301 tmp_ctx = talloc_new(NULL);
303 if (!PyArg_ParseTuple(args, "s", &unix_path)) {
306 status = gpo_get_sysvol_gpt_version(tmp_ctx, unix_path,
309 if (!NT_STATUS_IS_OK(status)) {
310 PyErr_SetNTSTATUS(status);
311 TALLOC_FREE(tmp_ctx);
315 talloc_free(tmp_ctx);
316 result = Py_BuildValue("[s,i]", display_name, sysvol_version);
320 static ADS_STATUS find_samaccount(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx, const char *samaccountname, uint32_t *uac_ret, const char **dn_ret)
323 const char *attrs[] = { "userAccountControl", NULL };
325 LDAPMessage *res = NULL;
329 filter = talloc_asprintf(mem_ctx, "(sAMAccountName=%s)", samaccountname);
330 if (filter == NULL) {
331 status = ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
335 status = ads_do_search_all(ads, ads->config.bind_path, LDAP_SCOPE_SUBTREE, filter, attrs, &res);
337 if (!ADS_ERR_OK(status)) {
341 if (ads_count_replies(ads, res) != 1) {
342 status = ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
346 dn = ads_get_dn(ads, talloc_tos(), res);
348 status = ADS_ERROR(LDAP_NO_MEMORY);
352 if (!ads_pull_uint32(ads, res, "userAccountControl", &uac)) {
353 status = ADS_ERROR(LDAP_NO_SUCH_ATTRIBUTE);
362 *dn_ret = talloc_strdup(mem_ctx, dn);
364 status = ADS_ERROR(LDAP_NO_MEMORY);
370 ads_msgfree(ads, res);
375 static PyObject *py_ads_get_gpo_list(ADS *self, PyObject *args, PyObject *kwds)
377 TALLOC_CTX *mem_ctx = NULL;
378 struct GROUP_POLICY_OBJECT *gpo_list = NULL;
380 const char *samaccountname = NULL;
381 const char *dn = NULL;
384 struct security_token *token = NULL;
385 PyObject *ret = Py_None;
389 static const char *kwlist[] = {"samaccountname", NULL};
390 if (!PyArg_ParseTupleAndKeywords(args, kwds, "s", discard_const_p(char *, kwlist), &samaccountname)) {
391 PyErr_SetString(PyExc_SystemError, "Failed to parse arguments to py_ads_get_gpo_list()");
395 mem_ctx = talloc_new(self->frame);
397 status = find_samaccount(self->ads_ptr, mem_ctx, samaccountname, &uac, &dn);
398 if (!ADS_ERR_OK(status)) {
399 PyErr_SetString(PyExc_SystemError, "Failed to find samAccountName");
403 if (uac & UF_WORKSTATION_TRUST_ACCOUNT || uac & UF_SERVER_TRUST_ACCOUNT) {
404 flags |= GPO_LIST_FLAG_MACHINE;
405 status = gp_get_machine_token(self->ads_ptr, mem_ctx, dn, &token);
407 status = ads_get_sid_token(self->ads_ptr, mem_ctx, dn, &token);
409 if (!ADS_ERR_OK(status)) {
410 PyErr_SetString(PyExc_SystemError, "Failed to get token");
414 gpo_ctx = talloc_new(NULL);
415 status = ads_get_gpo_list(self->ads_ptr, gpo_ctx, dn, flags, token, &gpo_list);
416 if (!ADS_ERR_OK(status)) {
417 PyErr_SetString(PyExc_SystemError, "Failed to fetch GPO list");
421 t_args = PyTuple_New(2);
422 PyTuple_SetItem(t_args, 0, PyCapsule_New(gpo_list, NULL, NULL));
423 PyTuple_SetItem(t_args, 1, PyCapsule_New(gpo_ctx, NULL, NULL));
424 ret = PyObject_CallObject((PyObject *)&GPOType, t_args);
427 talloc_free(mem_ctx);
435 static PyMethodDef ADS_methods[] = {
436 { "connect", (PyCFunction)py_ads_connect, METH_NOARGS, "Connect to the LDAP server" },
437 { "get_gpo_list", (PyCFunction)py_ads_get_gpo_list, METH_KEYWORDS, NULL },
441 static PyTypeObject ads_ADSType = {
442 .tp_name = "gpo.ADS_STRUCT",
443 .tp_basicsize = sizeof(ADS),
444 .tp_dealloc = (destructor)py_ads_dealloc,
445 .tp_flags = Py_TPFLAGS_DEFAULT,
446 .tp_doc = "ADS struct",
447 .tp_methods = ADS_methods,
448 .tp_init = (initproc)py_ads_init,
449 .tp_new = py_ads_new,
452 static PyMethodDef py_gpo_methods[] = {
453 {"gpo_get_sysvol_gpt_version", (PyCFunction) py_gpo_get_sysvol_gpt_version, METH_VARARGS, NULL},
457 /* Will be called by python when loading this module */
462 debug_setup_talloc_log();
463 /* Instantiate the types */
464 m = Py_InitModule3("gpo", py_gpo_methods, "libgpo python bindings");
465 if (m == NULL) return;
466 PyModule_AddObject(m, "version", PyString_FromString(SAMBA_VERSION_STRING));
467 if (PyType_Ready(&ads_ADSType) < 0)
469 PyModule_AddObject(m, "ADS_STRUCT", (PyObject *)&ads_ADSType);
470 if (PyType_Ready(&GPOType) < 0)
472 PyModule_AddObject(m, "GROUP_POLICY_OBJECT", (PyObject *)&GPOType);