mirror of
https://github.com/samba-team/samba.git
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3f464ca1f5
This will allow us to force the use of only DIGEST-MD5, for example, which is useful to avoid hitting GSSAPI, SPNEGO or NTLM when talking to OpenLDAP and Cyrus-SASL. Andrew Bartlett Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Nadezhda Ivanova <nivanova@symas.com>
519 lines
15 KiB
C
519 lines
15 KiB
C
/*
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Unix SMB/CIFS implementation.
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Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <Python.h>
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#include "includes.h"
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#include "pycredentials.h"
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#include "param/param.h"
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#include "lib/cmdline/credentials.h"
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#include "librpc/gen_ndr/samr.h" /* for struct samr_Password */
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#include "libcli/util/pyerrors.h"
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#include "param/pyparam.h"
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#include <tevent.h>
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void initcredentials(void);
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static PyObject *PyString_FromStringOrNULL(const char *str)
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{
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if (str == NULL)
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Py_RETURN_NONE;
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return PyString_FromString(str);
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}
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static PyObject *py_creds_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
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{
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pytalloc_Object *ret = (pytalloc_Object *)type->tp_alloc(type, 0);
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if (ret == NULL) {
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PyErr_NoMemory();
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return NULL;
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}
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ret->talloc_ctx = talloc_new(NULL);
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if (ret->talloc_ctx == NULL) {
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PyErr_NoMemory();
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return NULL;
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}
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ret->ptr = cli_credentials_init(ret->talloc_ctx);
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return (PyObject *)ret;
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}
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static PyObject *py_creds_get_username(pytalloc_Object *self)
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{
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return PyString_FromStringOrNULL(cli_credentials_get_username(PyCredentials_AsCliCredentials(self)));
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}
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static PyObject *py_creds_set_username(pytalloc_Object *self, PyObject *args)
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{
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char *newval;
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enum credentials_obtained obt = CRED_SPECIFIED;
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int _obt = obt;
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if (!PyArg_ParseTuple(args, "s|i", &newval, &_obt)) {
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return NULL;
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}
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obt = _obt;
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return PyBool_FromLong(cli_credentials_set_username(PyCredentials_AsCliCredentials(self), newval, obt));
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}
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static PyObject *py_creds_get_password(pytalloc_Object *self)
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{
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return PyString_FromStringOrNULL(cli_credentials_get_password(PyCredentials_AsCliCredentials(self)));
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}
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static PyObject *py_creds_set_password(pytalloc_Object *self, PyObject *args)
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{
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char *newval;
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enum credentials_obtained obt = CRED_SPECIFIED;
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int _obt = obt;
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if (!PyArg_ParseTuple(args, "s|i", &newval, &_obt)) {
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return NULL;
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}
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obt = _obt;
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return PyBool_FromLong(cli_credentials_set_password(PyCredentials_AsCliCredentials(self), newval, obt));
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}
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static PyObject *py_creds_get_domain(pytalloc_Object *self)
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{
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return PyString_FromStringOrNULL(cli_credentials_get_domain(PyCredentials_AsCliCredentials(self)));
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}
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static PyObject *py_creds_set_domain(pytalloc_Object *self, PyObject *args)
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{
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char *newval;
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enum credentials_obtained obt = CRED_SPECIFIED;
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int _obt = obt;
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if (!PyArg_ParseTuple(args, "s|i", &newval, &_obt)) {
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return NULL;
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}
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obt = _obt;
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return PyBool_FromLong(cli_credentials_set_domain(PyCredentials_AsCliCredentials(self), newval, obt));
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}
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static PyObject *py_creds_get_realm(pytalloc_Object *self)
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{
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return PyString_FromStringOrNULL(cli_credentials_get_realm(PyCredentials_AsCliCredentials(self)));
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}
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static PyObject *py_creds_set_realm(pytalloc_Object *self, PyObject *args)
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{
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char *newval;
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enum credentials_obtained obt = CRED_SPECIFIED;
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int _obt = obt;
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if (!PyArg_ParseTuple(args, "s|i", &newval, &_obt)) {
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return NULL;
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}
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obt = _obt;
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return PyBool_FromLong(cli_credentials_set_realm(PyCredentials_AsCliCredentials(self), newval, obt));
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}
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static PyObject *py_creds_get_bind_dn(pytalloc_Object *self)
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{
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return PyString_FromStringOrNULL(cli_credentials_get_bind_dn(PyCredentials_AsCliCredentials(self)));
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}
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static PyObject *py_creds_set_bind_dn(pytalloc_Object *self, PyObject *args)
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{
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char *newval;
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if (!PyArg_ParseTuple(args, "s", &newval))
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return NULL;
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return PyBool_FromLong(cli_credentials_set_bind_dn(PyCredentials_AsCliCredentials(self), newval));
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}
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static PyObject *py_creds_get_workstation(pytalloc_Object *self)
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{
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return PyString_FromStringOrNULL(cli_credentials_get_workstation(PyCredentials_AsCliCredentials(self)));
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}
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static PyObject *py_creds_set_workstation(pytalloc_Object *self, PyObject *args)
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{
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char *newval;
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enum credentials_obtained obt = CRED_SPECIFIED;
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int _obt = obt;
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if (!PyArg_ParseTuple(args, "s|i", &newval, &_obt)) {
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return NULL;
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}
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obt = _obt;
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return PyBool_FromLong(cli_credentials_set_workstation(PyCredentials_AsCliCredentials(self), newval, obt));
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}
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static PyObject *py_creds_is_anonymous(pytalloc_Object *self)
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{
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return PyBool_FromLong(cli_credentials_is_anonymous(PyCredentials_AsCliCredentials(self)));
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}
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static PyObject *py_creds_set_anonymous(pytalloc_Object *self)
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{
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cli_credentials_set_anonymous(PyCredentials_AsCliCredentials(self));
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Py_RETURN_NONE;
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}
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static PyObject *py_creds_authentication_requested(pytalloc_Object *self)
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{
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return PyBool_FromLong(cli_credentials_authentication_requested(PyCredentials_AsCliCredentials(self)));
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}
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static PyObject *py_creds_wrong_password(pytalloc_Object *self)
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{
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return PyBool_FromLong(cli_credentials_wrong_password(PyCredentials_AsCliCredentials(self)));
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}
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static PyObject *py_creds_set_cmdline_callbacks(pytalloc_Object *self)
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{
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return PyBool_FromLong(cli_credentials_set_cmdline_callbacks(PyCredentials_AsCliCredentials(self)));
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}
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static PyObject *py_creds_parse_string(pytalloc_Object *self, PyObject *args)
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{
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char *newval;
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enum credentials_obtained obt = CRED_SPECIFIED;
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int _obt = obt;
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if (!PyArg_ParseTuple(args, "s|i", &newval, &_obt)) {
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return NULL;
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}
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obt = _obt;
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cli_credentials_parse_string(PyCredentials_AsCliCredentials(self), newval, obt);
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Py_RETURN_NONE;
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}
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static PyObject *py_creds_get_nt_hash(pytalloc_Object *self)
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{
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const struct samr_Password *ntpw = cli_credentials_get_nt_hash(PyCredentials_AsCliCredentials(self), self->ptr);
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return PyString_FromStringAndSize(discard_const_p(char, ntpw->hash), 16);
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}
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static PyObject *py_creds_set_kerberos_state(pytalloc_Object *self, PyObject *args)
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{
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int state;
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if (!PyArg_ParseTuple(args, "i", &state))
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return NULL;
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cli_credentials_set_kerberos_state(PyCredentials_AsCliCredentials(self), state);
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Py_RETURN_NONE;
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}
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static PyObject *py_creds_set_krb_forwardable(pytalloc_Object *self, PyObject *args)
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{
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int state;
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if (!PyArg_ParseTuple(args, "i", &state))
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return NULL;
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cli_credentials_set_krb_forwardable(PyCredentials_AsCliCredentials(self), state);
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Py_RETURN_NONE;
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}
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static PyObject *py_creds_get_forced_sasl_mech(pytalloc_Object *self)
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{
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return PyString_FromStringOrNULL(cli_credentials_get_forced_sasl_mech(PyCredentials_AsCliCredentials(self)));
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}
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static PyObject *py_creds_set_forced_sasl_mech(pytalloc_Object *self, PyObject *args)
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{
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char *newval;
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enum credentials_obtained obt = CRED_SPECIFIED;
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int _obt = obt;
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if (!PyArg_ParseTuple(args, "s", &newval)) {
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return NULL;
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}
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obt = _obt;
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cli_credentials_set_forced_sasl_mech(PyCredentials_AsCliCredentials(self), newval);
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Py_RETURN_NONE;
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}
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static PyObject *py_creds_guess(pytalloc_Object *self, PyObject *args)
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{
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PyObject *py_lp_ctx = Py_None;
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struct loadparm_context *lp_ctx;
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TALLOC_CTX *mem_ctx;
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struct cli_credentials *creds;
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creds = PyCredentials_AsCliCredentials(self);
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if (!PyArg_ParseTuple(args, "|O", &py_lp_ctx))
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return NULL;
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mem_ctx = talloc_new(NULL);
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if (mem_ctx == NULL) {
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PyErr_NoMemory();
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return NULL;
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}
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lp_ctx = lpcfg_from_py_object(mem_ctx, py_lp_ctx);
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if (lp_ctx == NULL) {
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talloc_free(mem_ctx);
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return NULL;
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}
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cli_credentials_guess(creds, lp_ctx);
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talloc_free(mem_ctx);
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Py_RETURN_NONE;
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}
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static PyObject *py_creds_set_machine_account(pytalloc_Object *self, PyObject *args)
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{
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PyObject *py_lp_ctx = Py_None;
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struct loadparm_context *lp_ctx;
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NTSTATUS status;
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struct cli_credentials *creds;
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TALLOC_CTX *mem_ctx;
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creds = PyCredentials_AsCliCredentials(self);
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if (!PyArg_ParseTuple(args, "|O", &py_lp_ctx))
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return NULL;
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mem_ctx = talloc_new(NULL);
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if (mem_ctx == NULL) {
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PyErr_NoMemory();
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return NULL;
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}
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lp_ctx = lpcfg_from_py_object(mem_ctx, py_lp_ctx);
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if (lp_ctx == NULL) {
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talloc_free(mem_ctx);
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return NULL;
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}
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status = cli_credentials_set_machine_account(creds, lp_ctx);
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talloc_free(mem_ctx);
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PyErr_NTSTATUS_IS_ERR_RAISE(status);
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Py_RETURN_NONE;
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}
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static PyObject *PyCredentialCacheContainer_from_ccache_container(struct ccache_container *ccc)
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{
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PyCredentialCacheContainerObject *py_ret;
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if (ccc == NULL) {
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Py_RETURN_NONE;
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}
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py_ret = (PyCredentialCacheContainerObject *)PyCredentialCacheContainer.tp_alloc(&PyCredentialCacheContainer, 0);
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if (py_ret == NULL) {
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PyErr_NoMemory();
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return NULL;
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}
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py_ret->mem_ctx = talloc_new(NULL);
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py_ret->ccc = talloc_reference(py_ret->mem_ctx, ccc);
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return (PyObject *)py_ret;
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}
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static PyObject *py_creds_get_named_ccache(pytalloc_Object *self, PyObject *args)
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{
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PyObject *py_lp_ctx = Py_None;
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char *ccache_name;
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struct loadparm_context *lp_ctx;
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struct ccache_container *ccc;
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struct tevent_context *event_ctx;
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int ret;
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const char *error_string;
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struct cli_credentials *creds;
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TALLOC_CTX *mem_ctx;
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creds = PyCredentials_AsCliCredentials(self);
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if (!PyArg_ParseTuple(args, "|Os", &py_lp_ctx, &ccache_name))
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return NULL;
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mem_ctx = talloc_new(NULL);
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if (mem_ctx == NULL) {
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PyErr_NoMemory();
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return NULL;
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}
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lp_ctx = lpcfg_from_py_object(mem_ctx, py_lp_ctx);
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if (lp_ctx == NULL) {
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talloc_free(mem_ctx);
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return NULL;
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}
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event_ctx = samba_tevent_context_init(mem_ctx);
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ret = cli_credentials_get_named_ccache(creds, event_ctx, lp_ctx,
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ccache_name, &ccc, &error_string);
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talloc_unlink(mem_ctx, lp_ctx);
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if (ret == 0) {
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talloc_steal(ccc, event_ctx);
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talloc_free(mem_ctx);
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return PyCredentialCacheContainer_from_ccache_container(ccc);
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}
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PyErr_SetString(PyExc_RuntimeError, error_string?error_string:"NULL");
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talloc_free(mem_ctx);
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return NULL;
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}
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static PyObject *py_creds_set_gensec_features(pytalloc_Object *self, PyObject *args)
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{
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unsigned int gensec_features;
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if (!PyArg_ParseTuple(args, "I", &gensec_features))
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return NULL;
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cli_credentials_set_gensec_features(PyCredentials_AsCliCredentials(self), gensec_features);
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Py_RETURN_NONE;
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}
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static PyObject *py_creds_get_gensec_features(pytalloc_Object *self, PyObject *args)
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{
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unsigned int gensec_features;
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gensec_features = cli_credentials_get_gensec_features(PyCredentials_AsCliCredentials(self));
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return PyInt_FromLong(gensec_features);
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}
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static PyMethodDef py_creds_methods[] = {
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{ "get_username", (PyCFunction)py_creds_get_username, METH_NOARGS,
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"S.get_username() -> username\nObtain username." },
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{ "set_username", (PyCFunction)py_creds_set_username, METH_VARARGS,
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"S.set_username(name, obtained=CRED_SPECIFIED) -> None\n"
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"Change username." },
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{ "get_password", (PyCFunction)py_creds_get_password, METH_NOARGS,
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"S.get_password() -> password\n"
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"Obtain password." },
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{ "set_password", (PyCFunction)py_creds_set_password, METH_VARARGS,
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"S.set_password(password, obtained=CRED_SPECIFIED) -> None\n"
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"Change password." },
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{ "get_domain", (PyCFunction)py_creds_get_domain, METH_NOARGS,
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"S.get_domain() -> domain\n"
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"Obtain domain name." },
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{ "set_domain", (PyCFunction)py_creds_set_domain, METH_VARARGS,
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"S.set_domain(domain, obtained=CRED_SPECIFIED) -> None\n"
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"Change domain name." },
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{ "get_realm", (PyCFunction)py_creds_get_realm, METH_NOARGS,
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"S.get_realm() -> realm\n"
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"Obtain realm name." },
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{ "set_realm", (PyCFunction)py_creds_set_realm, METH_VARARGS,
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"S.set_realm(realm, obtained=CRED_SPECIFIED) -> None\n"
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"Change realm name." },
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{ "get_bind_dn", (PyCFunction)py_creds_get_bind_dn, METH_NOARGS,
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"S.get_bind_dn() -> bind dn\n"
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"Obtain bind DN." },
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{ "set_bind_dn", (PyCFunction)py_creds_set_bind_dn, METH_VARARGS,
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"S.set_bind_dn(bind_dn) -> None\n"
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"Change bind DN." },
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{ "is_anonymous", (PyCFunction)py_creds_is_anonymous, METH_NOARGS,
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NULL },
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{ "set_anonymous", (PyCFunction)py_creds_set_anonymous, METH_NOARGS,
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"S.set_anonymous() -> None\n"
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"Use anonymous credentials." },
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{ "get_workstation", (PyCFunction)py_creds_get_workstation, METH_NOARGS,
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NULL },
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{ "set_workstation", (PyCFunction)py_creds_set_workstation, METH_VARARGS,
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NULL },
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{ "authentication_requested", (PyCFunction)py_creds_authentication_requested, METH_NOARGS,
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NULL },
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{ "wrong_password", (PyCFunction)py_creds_wrong_password, METH_NOARGS,
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"S.wrong_password() -> bool\n"
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"Indicate the returned password was incorrect." },
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{ "set_cmdline_callbacks", (PyCFunction)py_creds_set_cmdline_callbacks, METH_NOARGS,
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"S.set_cmdline_callbacks() -> bool\n"
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"Use command-line to obtain credentials not explicitly set." },
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{ "parse_string", (PyCFunction)py_creds_parse_string, METH_VARARGS,
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"S.parse_string(text, obtained=CRED_SPECIFIED) -> None\n"
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"Parse credentials string." },
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{ "get_nt_hash", (PyCFunction)py_creds_get_nt_hash, METH_NOARGS,
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NULL },
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{ "set_kerberos_state", (PyCFunction)py_creds_set_kerberos_state, METH_VARARGS,
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NULL },
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{ "set_krb_forwardable", (PyCFunction)py_creds_set_krb_forwardable, METH_VARARGS,
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NULL },
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{ "guess", (PyCFunction)py_creds_guess, METH_VARARGS, NULL },
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{ "set_machine_account", (PyCFunction)py_creds_set_machine_account, METH_VARARGS, NULL },
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{ "get_named_ccache", (PyCFunction)py_creds_get_named_ccache, METH_VARARGS, NULL },
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{ "set_gensec_features", (PyCFunction)py_creds_set_gensec_features, METH_VARARGS, NULL },
|
|
{ "get_gensec_features", (PyCFunction)py_creds_get_gensec_features, METH_NOARGS, NULL },
|
|
{ "get_forced_sasl_mech", (PyCFunction)py_creds_get_forced_sasl_mech, METH_NOARGS,
|
|
"S.get_forced_sasl_mech() -> SASL mechanism\nObtain forced SASL mechanism." },
|
|
{ "set_forced_sasl_mech", (PyCFunction)py_creds_set_forced_sasl_mech, METH_VARARGS,
|
|
"S.set_forced_sasl_mech(name) -> None\n"
|
|
"Set forced SASL mechanism." },
|
|
{ NULL }
|
|
};
|
|
|
|
PyTypeObject PyCredentials = {
|
|
.tp_name = "credentials.Credentials",
|
|
.tp_basicsize = sizeof(pytalloc_Object),
|
|
.tp_new = py_creds_new,
|
|
.tp_flags = Py_TPFLAGS_DEFAULT,
|
|
.tp_methods = py_creds_methods,
|
|
};
|
|
|
|
|
|
PyTypeObject PyCredentialCacheContainer = {
|
|
.tp_name = "credentials.CredentialCacheContainer",
|
|
.tp_basicsize = sizeof(pytalloc_Object),
|
|
.tp_flags = Py_TPFLAGS_DEFAULT,
|
|
};
|
|
|
|
void initcredentials(void)
|
|
{
|
|
PyObject *m;
|
|
PyTypeObject *talloc_type = pytalloc_GetObjectType();
|
|
if (talloc_type == NULL)
|
|
return;
|
|
|
|
PyCredentials.tp_base = PyCredentialCacheContainer.tp_base = talloc_type;
|
|
|
|
if (PyType_Ready(&PyCredentials) < 0)
|
|
return;
|
|
|
|
if (PyType_Ready(&PyCredentialCacheContainer) < 0)
|
|
return;
|
|
|
|
m = Py_InitModule3("credentials", NULL, "Credentials management.");
|
|
if (m == NULL)
|
|
return;
|
|
|
|
PyModule_AddObject(m, "AUTO_USE_KERBEROS", PyInt_FromLong(CRED_AUTO_USE_KERBEROS));
|
|
PyModule_AddObject(m, "DONT_USE_KERBEROS", PyInt_FromLong(CRED_DONT_USE_KERBEROS));
|
|
PyModule_AddObject(m, "MUST_USE_KERBEROS", PyInt_FromLong(CRED_MUST_USE_KERBEROS));
|
|
|
|
PyModule_AddObject(m, "AUTO_KRB_FORWARDABLE", PyInt_FromLong(CRED_AUTO_KRB_FORWARDABLE));
|
|
PyModule_AddObject(m, "NO_KRB_FORWARDABLE", PyInt_FromLong(CRED_NO_KRB_FORWARDABLE));
|
|
PyModule_AddObject(m, "FORCE_KRB_FORWARDABLE", PyInt_FromLong(CRED_FORCE_KRB_FORWARDABLE));
|
|
|
|
Py_INCREF(&PyCredentials);
|
|
PyModule_AddObject(m, "Credentials", (PyObject *)&PyCredentials);
|
|
Py_INCREF(&PyCredentialCacheContainer);
|
|
PyModule_AddObject(m, "CredentialCacheContainer", (PyObject *)&PyCredentialCacheContainer);
|
|
}
|