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/*
Unix SMB/CIFS implementation.
Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <Python.h>
#include "includes.h"
#include "param/pyparam.h"
#include "auth/gensec/gensec.h"
#include "libcli/util/pyerrors.h"
#include "scripting/python/modules.h"
#include "lib/talloc/pytalloc.h"
#include <tevent.h>
static PyObject *py_get_name_by_authtype(PyObject *self, PyObject *args)
{
int type;
const char *name;
struct gensec_security *security;
if (!PyArg_ParseTuple(args, "i", &type))
return NULL;
security = (struct gensec_security *)py_talloc_get_ptr(self);
name = gensec_get_name_by_authtype(security, type);
if (name == NULL)
Py_RETURN_NONE;
return PyString_FromString(name);
}
static struct gensec_settings *settings_from_object(TALLOC_CTX *mem_ctx, PyObject *object)
{
struct gensec_settings *s;
PyObject *py_hostname, *py_lp_ctx;
if (!PyDict_Check(object)) {
PyErr_SetString(PyExc_ValueError, "settings should be a dictionary");
return NULL;
}
s = talloc_zero(mem_ctx, struct gensec_settings);
if (!s) return NULL;
py_hostname = PyDict_GetItemString(object, "target_hostname");
if (!py_hostname) {
PyErr_SetString(PyExc_ValueError, "settings.target_hostname not found");
return NULL;
}
py_lp_ctx = PyDict_GetItemString(object, "lp_ctx");
if (!py_lp_ctx) {
PyErr_SetString(PyExc_ValueError, "settings.lp_ctx not found");
return NULL;
}
s->target_hostname = PyString_AsString(py_hostname);
s->lp_ctx = lpcfg_from_py_object(s, py_lp_ctx);
return s;
}
static PyObject *py_gensec_start_client(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
NTSTATUS status;
py_talloc_Object *self;
struct gensec_settings *settings;
const char *kwnames[] = { "settings", NULL };
PyObject *py_settings;
struct tevent_context *ev;
struct gensec_security *gensec;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O", discard_const_p(char *, kwnames), &py_settings))
return NULL;
self = (py_talloc_Object*)type->tp_alloc(type, 0);
if (self == NULL) {
PyErr_NoMemory();
return NULL;
}
self->talloc_ctx = talloc_new(NULL);
if (self->talloc_ctx == NULL) {
PyErr_NoMemory();
return NULL;
}
settings = settings_from_object(self->talloc_ctx, py_settings);
if (settings == NULL) {
PyObject_DEL(self);
return NULL;
}
ev = tevent_context_init(self->talloc_ctx);
if (ev == NULL) {
PyErr_NoMemory();
PyObject_Del(self);
return NULL;
}
status = gensec_init(settings->lp_ctx);
if (!NT_STATUS_IS_OK(status)) {
PyErr_SetNTSTATUS(status);
PyObject_DEL(self);
return NULL;
}
status = gensec_client_start(self->talloc_ctx, &gensec, ev, settings);
if (!NT_STATUS_IS_OK(status)) {
PyErr_SetNTSTATUS(status);
PyObject_DEL(self);
return NULL;
}
self->ptr = gensec;
return (PyObject *)self;
}
static PyObject *py_gensec_session_info(PyObject *self)
{
NTSTATUS status;
struct gensec_security *security = (struct gensec_security *)py_talloc_get_ptr(self);
struct auth_session_info *info;
if (security->ops == NULL) {
PyErr_SetString(PyExc_RuntimeError, "no mechanism selected");
return NULL;
}
status = gensec_session_info(security, &info);
if (NT_STATUS_IS_ERR(status)) {
PyErr_SetNTSTATUS(status);
return NULL;
}
/* FIXME */
Py_RETURN_NONE;
}
static PyObject *py_gensec_start_mech_by_name(PyObject *self, PyObject *args)
{
char *name;
struct gensec_security *security = (struct gensec_security *)py_talloc_get_ptr(self);
NTSTATUS status;
if (!PyArg_ParseTuple(args, "s", &name))
return NULL;
status = gensec_start_mech_by_name(security, name);
if (!NT_STATUS_IS_OK(status)) {
PyErr_SetNTSTATUS(status);
return NULL;
}
Py_RETURN_NONE;
}
static PyObject *py_gensec_start_mech_by_authtype(PyObject *self, PyObject *args)
{
int authtype, level;
struct gensec_security *security = (struct gensec_security *)py_talloc_get_ptr(self);
NTSTATUS status;
if (!PyArg_ParseTuple(args, "ii", &authtype, &level))
return NULL;
status = gensec_start_mech_by_authtype(security, authtype, level);
if (!NT_STATUS_IS_OK(status)) {
PyErr_SetNTSTATUS(status);
return NULL;
}
Py_RETURN_NONE;
}
static PyMethodDef py_gensec_security_methods[] = {
{ "start_client", (PyCFunction)py_gensec_start_client, METH_VARARGS|METH_KEYWORDS|METH_CLASS,
"S.start_client(settings) -> gensec" },
/* { "start_server", (PyCFunction)py_gensec_start_server, METH_VARARGS|METH_KEYWORDS|METH_CLASS,
"S.start_server(auth_ctx, settings) -> gensec" },*/
{ "session_info", (PyCFunction)py_gensec_session_info, METH_NOARGS,
"S.session_info() -> info" },
{ "start_mech_by_name", (PyCFunction)py_gensec_start_mech_by_name, METH_VARARGS,
"S.start_mech_by_name(name)" },
{ "start_mech_by_authtype", (PyCFunction)py_gensec_start_mech_by_authtype, METH_VARARGS, "S.start_mech_by_authtype(authtype, level)" },
{ "get_name_by_authtype", (PyCFunction)py_get_name_by_authtype, METH_VARARGS,
"S.get_name_by_authtype(authtype) -> name\nLookup an auth type." },
{ NULL }
};
static PyTypeObject Py_Security = {
.tp_name = "Security",
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_methods = py_gensec_security_methods,
.tp_basicsize = sizeof(py_talloc_Object),
.tp_dealloc = py_talloc_dealloc,
};
void initgensec(void)
{
PyObject *m;
if (PyType_Ready(&Py_Security) < 0)
return;
m = Py_InitModule3("gensec", NULL, "Generic Security Interface.");
if (m == NULL)
return;
PyModule_AddObject(m, "FEATURE_SESSION_KEY", PyInt_FromLong(GENSEC_FEATURE_SESSION_KEY));
PyModule_AddObject(m, "FEATURE_SIGN", PyInt_FromLong(GENSEC_FEATURE_SIGN));
PyModule_AddObject(m, "FEATURE_SEAL", PyInt_FromLong(GENSEC_FEATURE_SEAL));
PyModule_AddObject(m, "FEATURE_DCE_STYLE", PyInt_FromLong(GENSEC_FEATURE_DCE_STYLE));
PyModule_AddObject(m, "FEATURE_ASYNC_REPLIES", PyInt_FromLong(GENSEC_FEATURE_ASYNC_REPLIES));
PyModule_AddObject(m, "FEATURE_DATAGRAM_MODE", PyInt_FromLong(GENSEC_FEATURE_DATAGRAM_MODE));
PyModule_AddObject(m, "FEATURE_SIGN_PKT_HEADER", PyInt_FromLong(GENSEC_FEATURE_SIGN_PKT_HEADER));
PyModule_AddObject(m, "FEATURE_NEW_SPNEGO", PyInt_FromLong(GENSEC_FEATURE_NEW_SPNEGO));
Py_INCREF(&Py_Security);
PyModule_AddObject(m, "Security", (PyObject *)&Py_Security);
}
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