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/*
Unix SMB/CIFS implementation.
Samba utility functions
Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008-2010
Copyright (C) Kamen Mazdrashki <kamen.mazdrashki@postpath.com> 2009
Copyright (C) Alexander Bokovoy <ab@samba.org> 2012
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 "python/py3compat.h"
#include "python/modules.h"
#include "py_net.h"
#include "libnet_export_keytab.h"
void initdckeytab(void);
static PyObject *py_net_export_keytab(py_net_Object *self, PyObject *args, PyObject *kwargs)
{
struct libnet_export_keytab r;
TALLOC_CTX *mem_ctx;
const char *kwnames[] = { "keytab", "principal", NULL };
NTSTATUS status;
r.in.principal = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|z:export_keytab", discard_const_p(char *, kwnames),
&r.in.keytab_name,
&r.in.principal)) {
return NULL;
}
mem_ctx = talloc_new(self->mem_ctx);
if (mem_ctx == NULL) {
PyErr_NoMemory();
return NULL;
}
status = libnet_export_keytab(self->libnet_ctx, mem_ctx, &r);
if (NT_STATUS_IS_ERR(status)) {
PyErr_SetString(PyExc_RuntimeError,
r.out.error_string?r.out.error_string:nt_errstr(status));
talloc_free(mem_ctx);
return NULL;
}
talloc_free(mem_ctx);
Py_RETURN_NONE;
}
static const char py_net_export_keytab_doc[] = "export_keytab(keytab, name)\n\n"
"Export the DC keytab to a keytab file.";
static PyMethodDef export_keytab_method_table[] = {
{"export_keytab", PY_DISCARD_FUNC_SIG(PyCFunction,
py_net_export_keytab),
METH_VARARGS|METH_KEYWORDS, py_net_export_keytab_doc},
{ NULL, NULL, 0, NULL }
};
/*
* A fake Python module to inject export_keytab() method into existing samba.net.Net class.
* Python enforces that every loaded module actually creates Python module record in
* the global module table even if we don't really need that record. Thus, we initialize
* dckeytab module but never use it.
* */
void initdckeytab(void);
static struct PyModuleDef moduledef = {
PyModuleDef_HEAD_INIT,
.m_name = "dckeytab",
.m_doc = "dckeytab",
.m_size = -1,
.m_methods = NULL
};
MODULE_INIT_FUNC(dckeytab)
{
PyObject *m = NULL;
PyObject *Net;
PyObject *descr;
int ret;
m = PyModule_Create(&moduledef);
if (m == NULL)
return m;
m = PyImport_ImportModule("samba.net");
if (m == NULL)
return m;
Net = (PyObject *)PyObject_GetAttrString(m, "Net");
if (Net == NULL)
return m;
descr = PyDescr_NewMethod((PyTypeObject*)Net, &export_keytab_method_table[0]);
if (descr == NULL)
return m;
ret = PyDict_SetItemString(((PyTypeObject*)Net)->tp_dict,
export_keytab_method_table[0].ml_name,
descr);
if (ret != -1) {
Py_DECREF(descr);
}
return m;
}
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