2 Unix SMB/CIFS implementation.
3 Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007-2008
4 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2011
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 3 of the License, or
9 (at your option) any later version.
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.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "python/py3compat.h"
23 #include "libcli/util/pyerrors.h"
24 #include "param/param.h"
27 #include "auth/system_session_proto.h"
28 #include "auth/auth.h"
29 #include "param/pyparam.h"
30 #include "libcli/security/security.h"
31 #include "auth/credentials/pycredentials.h"
33 #include "librpc/rpc/pyrpc_util.h"
34 #include "lib/events/events.h"
36 static PyTypeObject PyAuthContext;
38 static PyObject *PyAuthSession_FromSession(struct auth_session_info *session)
40 return py_return_ndr_struct("samba.dcerpc.auth", "session_info", session, session);
43 static PyObject *py_system_session(PyObject *module, PyObject *args)
45 PyObject *py_lp_ctx = Py_None;
46 struct loadparm_context *lp_ctx = NULL;
47 struct auth_session_info *session;
49 if (!PyArg_ParseTuple(args, "|O", &py_lp_ctx))
52 mem_ctx = talloc_new(NULL);
53 if (mem_ctx == NULL) {
58 lp_ctx = lpcfg_from_py_object(mem_ctx, py_lp_ctx);
64 session = system_session(lp_ctx);
68 return PyAuthSession_FromSession(session);
72 static PyObject *py_admin_session(PyObject *module, PyObject *args)
76 struct loadparm_context *lp_ctx = NULL;
77 struct auth_session_info *session;
78 struct dom_sid *domain_sid = NULL;
81 if (!PyArg_ParseTuple(args, "Os", &py_lp_ctx, &sid))
84 mem_ctx = talloc_new(NULL);
85 if (mem_ctx == NULL) {
90 lp_ctx = lpcfg_from_py_object(mem_ctx, py_lp_ctx);
96 domain_sid = dom_sid_parse_talloc(mem_ctx, sid);
97 if (domain_sid == NULL) {
98 PyErr_Format(PyExc_RuntimeError, "Unable to parse sid %s", sid);
102 session = admin_session(NULL, lp_ctx, domain_sid);
103 talloc_free(mem_ctx);
105 return PyAuthSession_FromSession(session);
108 static PyObject *py_user_session(PyObject *module, PyObject *args, PyObject *kwargs)
111 struct auth_session_info *session;
113 const char * const kwnames[] = { "ldb", "lp_ctx", "principal", "dn", "session_info_flags", NULL };
114 struct ldb_context *ldb_ctx;
115 PyObject *py_ldb = Py_None;
116 PyObject *py_dn = Py_None;
117 PyObject *py_lp_ctx = Py_None;
118 struct loadparm_context *lp_ctx = NULL;
119 struct ldb_dn *user_dn;
120 char *principal = NULL;
121 int session_info_flags = 0; /* This is an int, because that's
122 * what we need for the python
123 * PyArg_ParseTupleAndKeywords */
125 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|OzOi",
126 discard_const_p(char *, kwnames),
127 &py_ldb, &py_lp_ctx, &principal, &py_dn, &session_info_flags)) {
131 mem_ctx = talloc_new(NULL);
132 if (mem_ctx == NULL) {
137 ldb_ctx = pyldb_Ldb_AsLdbContext(py_ldb);
139 if (py_dn == Py_None) {
142 if (!pyldb_Object_AsDn(ldb_ctx, py_dn, ldb_ctx, &user_dn)) {
143 talloc_free(mem_ctx);
148 lp_ctx = lpcfg_from_py_object(mem_ctx, py_lp_ctx);
149 if (lp_ctx == NULL) {
150 talloc_free(mem_ctx);
154 nt_status = authsam_get_session_info_principal(mem_ctx, lp_ctx, ldb_ctx, principal, user_dn,
155 session_info_flags, &session);
156 if (!NT_STATUS_IS_OK(nt_status)) {
157 talloc_free(mem_ctx);
158 PyErr_NTSTATUS_IS_ERR_RAISE(nt_status);
161 talloc_steal(NULL, session);
162 talloc_free(mem_ctx);
164 return PyAuthSession_FromSession(session);
168 static const char **PyList_AsStringList(TALLOC_CTX *mem_ctx, PyObject *list,
169 const char *paramname)
173 if (!PyList_Check(list)) {
174 PyErr_Format(PyExc_TypeError, "%s is not a list", paramname);
177 ret = talloc_array(NULL, const char *, PyList_Size(list)+1);
183 for (i = 0; i < PyList_Size(list); i++) {
186 PyObject *item = PyList_GetItem(list, i);
187 if (!PyStr_Check(item)) {
188 PyErr_Format(PyExc_TypeError, "%s should be strings", paramname);
191 value = PyStr_AsUTF8AndSize(item, &size);
196 ret[i] = talloc_strndup(ret, value, size);
202 static PyObject *PyAuthContext_FromContext(struct auth4_context *auth_context)
204 return pytalloc_reference(&PyAuthContext, auth_context);
207 static PyObject *py_auth_context_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
209 PyObject *py_lp_ctx = Py_None;
210 PyObject *py_ldb = Py_None;
211 PyObject *py_imessaging_ctx = Py_None;
212 PyObject *py_auth_context = Py_None;
213 PyObject *py_methods = Py_None;
215 struct auth4_context *auth_context;
216 struct imessaging_context *imessaging_context = NULL;
217 struct loadparm_context *lp_ctx;
218 struct tevent_context *ev;
219 struct ldb_context *ldb = NULL;
221 const char **methods;
223 const char * const kwnames[] = { "lp_ctx", "messaging_ctx", "ldb", "methods", NULL };
225 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOOO",
226 discard_const_p(char *, kwnames),
227 &py_lp_ctx, &py_imessaging_ctx, &py_ldb, &py_methods))
230 mem_ctx = talloc_new(NULL);
231 if (mem_ctx == NULL) {
236 if (py_ldb != Py_None) {
237 ldb = pyldb_Ldb_AsLdbContext(py_ldb);
240 lp_ctx = lpcfg_from_py_object(mem_ctx, py_lp_ctx);
241 if (lp_ctx == NULL) {
246 ev = s4_event_context_init(mem_ctx);
252 if (py_imessaging_ctx != Py_None) {
253 imessaging_context = pytalloc_get_type(py_imessaging_ctx, struct imessaging_context);
256 if (py_methods == Py_None && py_ldb == Py_None) {
257 nt_status = auth_context_create(mem_ctx, ev, imessaging_context, lp_ctx, &auth_context);
259 if (py_methods != Py_None) {
260 methods = PyList_AsStringList(mem_ctx, py_methods, "methods");
261 if (methods == NULL) {
262 talloc_free(mem_ctx);
266 methods = auth_methods_from_lp(mem_ctx, lp_ctx);
268 nt_status = auth_context_create_methods(mem_ctx, methods, ev,
269 imessaging_context, lp_ctx,
273 if (!NT_STATUS_IS_OK(nt_status)) {
274 talloc_free(mem_ctx);
275 PyErr_NTSTATUS_IS_ERR_RAISE(nt_status);
278 if (!talloc_reference(auth_context, lp_ctx)) {
279 talloc_free(mem_ctx);
284 if (!talloc_reference(auth_context, ev)) {
285 talloc_free(mem_ctx);
290 py_auth_context = PyAuthContext_FromContext(auth_context);
292 talloc_free(mem_ctx);
294 return py_auth_context;
297 static PyTypeObject PyAuthContext = {
298 .tp_name = "AuthContext",
299 .tp_flags = Py_TPFLAGS_DEFAULT,
300 .tp_new = py_auth_context_new,
303 static PyMethodDef py_auth_methods[] = {
304 { "system_session", (PyCFunction)py_system_session, METH_VARARGS, NULL },
305 { "admin_session", (PyCFunction)py_admin_session, METH_VARARGS, NULL },
306 { "user_session", (PyCFunction)py_user_session, METH_VARARGS|METH_KEYWORDS, NULL },
310 static struct PyModuleDef moduledef = {
311 PyModuleDef_HEAD_INIT,
313 .m_doc = "Authentication and authorization support.",
315 .m_methods = py_auth_methods,
318 MODULE_INIT_FUNC(auth)
322 if (pytalloc_BaseObject_PyType_Ready(&PyAuthContext) < 0)
325 m = PyModule_Create(&moduledef);
329 Py_INCREF(&PyAuthContext);
330 PyModule_AddObject(m, "AuthContext", (PyObject *)&PyAuthContext);
332 #define ADD_FLAG(val) PyModule_AddIntConstant(m, #val, val)
333 ADD_FLAG(AUTH_SESSION_INFO_DEFAULT_GROUPS);
334 ADD_FLAG(AUTH_SESSION_INFO_AUTHENTICATED);
335 ADD_FLAG(AUTH_SESSION_INFO_SIMPLE_PRIVILEGES);
336 ADD_FLAG(AUTH_SESSION_INFO_NTLM);