1
0
mirror of https://github.com/samba-team/samba.git synced 2024-12-23 17:34:34 +03:00
samba-mirror/source4/param/pyparam.c

380 lines
10 KiB
C
Raw Normal View History

2008-12-21 09:34:27 +03:00
/*
Unix SMB/CIFS implementation.
Samba utility functions
Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007-2008
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 <stdint.h>
#include <stdbool.h>
#include "includes.h"
#include "param/param.h"
#include "param/loadparm.h"
#include <Python.h>
2008-12-21 09:34:27 +03:00
#include "pytalloc.h"
/* There's no Py_ssize_t in 2.4, apparently */
#if PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION < 5
typedef int Py_ssize_t;
typedef inquiry lenfunc;
#endif
#ifndef Py_RETURN_NONE
#define Py_RETURN_NONE return Py_INCREF(Py_None), Py_None
#endif
#define PyLoadparmContext_AsLoadparmContext(obj) py_talloc_get_type(obj, struct loadparm_context)
2008-12-21 09:34:27 +03:00
PyAPI_DATA(PyTypeObject) PyLoadparmContext;
PyAPI_DATA(PyTypeObject) PyLoadparmService;
PyObject *PyLoadparmService_FromService(struct loadparm_service *service)
{
return py_talloc_reference(&PyLoadparmService, service);
2008-12-21 09:34:27 +03:00
}
static PyObject *py_lp_ctx_get_helper(struct loadparm_context *lp_ctx, const char *service_name, const char *param_name)
{
struct parm_struct *parm = NULL;
void *parm_ptr = NULL;
int i;
if (service_name != NULL) {
struct loadparm_service *service;
/* its a share parameter */
service = lp_service(lp_ctx, service_name);
if (service == NULL) {
return NULL;
}
if (strchr(param_name, ':')) {
/* its a parametric option on a share */
const char *type = talloc_strndup(lp_ctx,
param_name,
strcspn(param_name, ":"));
const char *option = strchr(param_name, ':') + 1;
const char *value;
if (type == NULL || option == NULL) {
return NULL;
}
value = lp_get_parametric(lp_ctx, service, type, option);
if (value == NULL) {
return NULL;
}
return PyString_FromString(value);
}
parm = lp_parm_struct(param_name);
2009-02-02 13:24:08 +03:00
if (parm == NULL || parm->pclass == P_GLOBAL) {
2008-12-21 09:34:27 +03:00
return NULL;
}
parm_ptr = lp_parm_ptr(lp_ctx, service, parm);
} else if (strchr(param_name, ':')) {
/* its a global parametric option */
const char *type = talloc_strndup(lp_ctx,
param_name, strcspn(param_name, ":"));
const char *option = strchr(param_name, ':') + 1;
const char *value;
if (type == NULL || option == NULL) {
return NULL;
}
value = lp_get_parametric(lp_ctx, NULL, type, option);
if (value == NULL)
return NULL;
return PyString_FromString(value);
} else {
/* its a global parameter */
parm = lp_parm_struct(param_name);
if (parm == NULL) {
return NULL;
}
parm_ptr = lp_parm_ptr(lp_ctx, NULL, parm);
}
if (parm == NULL || parm_ptr == NULL) {
return NULL;
}
/* construct and return the right type of python object */
switch (parm->type) {
case P_STRING:
case P_USTRING:
return PyString_FromString(*(char **)parm_ptr);
case P_BOOL:
return PyBool_FromLong(*(bool *)parm_ptr);
case P_INTEGER:
case P_OCTAL:
case P_BYTES:
return PyLong_FromLong(*(int *)parm_ptr);
case P_ENUM:
for (i=0; parm->enum_list[i].name; i++) {
if (*(int *)parm_ptr == parm->enum_list[i].value) {
return PyString_FromString(parm->enum_list[i].name);
}
}
return NULL;
case P_LIST:
{
int j;
const char **strlist = *(const char ***)parm_ptr;
PyObject *pylist = PyList_New(str_list_length(strlist));
for (j = 0; strlist[j]; j++)
PyList_SetItem(pylist, j,
PyString_FromString(strlist[j]));
return pylist;
}
break;
}
return NULL;
}
static PyObject *py_lp_ctx_load(py_talloc_Object *self, PyObject *args)
{
char *filename;
bool ret;
if (!PyArg_ParseTuple(args, "s", &filename))
return NULL;
ret = lp_load(PyLoadparmContext_AsLoadparmContext(self), filename);
2008-12-21 09:34:27 +03:00
if (!ret) {
PyErr_Format(PyExc_RuntimeError, "Unable to load file %s", filename);
2008-12-21 09:34:27 +03:00
return NULL;
}
Py_RETURN_NONE;
2008-12-21 09:34:27 +03:00
}
static PyObject *py_lp_ctx_load_default(py_talloc_Object *self)
{
bool ret;
ret = lp_load_default(PyLoadparmContext_AsLoadparmContext(self));
2008-12-21 09:34:27 +03:00
if (!ret) {
PyErr_SetString(PyExc_RuntimeError, "Unable to load default file");
2008-12-21 09:34:27 +03:00
return NULL;
}
Py_RETURN_NONE;
2008-12-21 09:34:27 +03:00
}
static PyObject *py_lp_ctx_get(py_talloc_Object *self, PyObject *args)
{
char *param_name;
char *section_name = NULL;
PyObject *ret;
if (!PyArg_ParseTuple(args, "s|s", &param_name, &section_name))
return NULL;
ret = py_lp_ctx_get_helper(PyLoadparmContext_AsLoadparmContext(self), section_name, param_name);
2008-12-21 09:34:27 +03:00
if (ret == NULL)
Py_RETURN_NONE;
2008-12-21 09:34:27 +03:00
return ret;
}
static PyObject *py_lp_ctx_is_myname(py_talloc_Object *self, PyObject *args)
{
char *name;
if (!PyArg_ParseTuple(args, "s", &name))
return NULL;
return PyBool_FromLong(lp_is_myname(PyLoadparmContext_AsLoadparmContext(self), name));
2008-12-21 09:34:27 +03:00
}
static PyObject *py_lp_ctx_is_mydomain(py_talloc_Object *self, PyObject *args)
{
char *name;
if (!PyArg_ParseTuple(args, "s", &name))
return NULL;
return PyBool_FromLong(lp_is_mydomain(PyLoadparmContext_AsLoadparmContext(self), name));
}
2008-12-21 09:34:27 +03:00
static PyObject *py_lp_ctx_set(py_talloc_Object *self, PyObject *args)
{
char *name, *value;
bool ret;
if (!PyArg_ParseTuple(args, "ss", &name, &value))
return NULL;
ret = lp_set_cmdline(PyLoadparmContext_AsLoadparmContext(self), name, value);
2008-12-21 09:34:27 +03:00
if (!ret) {
PyErr_SetString(PyExc_RuntimeError, "Unable to set parameter");
return NULL;
}
Py_RETURN_NONE;
2008-12-21 09:34:27 +03:00
}
static PyObject *py_lp_ctx_private_path(py_talloc_Object *self, PyObject *args)
{
char *name, *path;
PyObject *ret;
if (!PyArg_ParseTuple(args, "s", &name))
return NULL;
path = private_path(NULL, PyLoadparmContext_AsLoadparmContext(self), name);
2008-12-21 09:34:27 +03:00
ret = PyString_FromString(path);
talloc_free(path);
return ret;
}
static PyObject *py_lp_ctx_services(py_talloc_Object *self)
{
struct loadparm_context *lp_ctx = PyLoadparmContext_AsLoadparmContext(self);
const char **names;
PyObject *ret;
int i;
names = lp_server_services(lp_ctx);
ret = PyList_New(str_list_length(names));
for (i = 0; names[i]; i++) {
PyList_SetItem(ret, i, PyString_FromString(names[i]));
}
return ret;
}
2008-12-21 09:34:27 +03:00
static PyMethodDef py_lp_ctx_methods[] = {
{ "load", (PyCFunction)py_lp_ctx_load, METH_VARARGS,
"S.load(filename) -> None\n"
"Load specified file." },
{ "load_default", (PyCFunction)py_lp_ctx_load_default, METH_NOARGS,
"S.load_default() -> None\n"
"Load default smb.conf file." },
{ "is_myname", (PyCFunction)py_lp_ctx_is_myname, METH_VARARGS,
"S.is_myname(name) -> bool\n"
"Check whether the specified name matches one of our netbios names." },
{ "is_mydomain", (PyCFunction)py_lp_ctx_is_mydomain, METH_VARARGS,
"S.is_mydomain(name) -> bool\n"
"Check whether the specified name matches our domain name." },
2008-12-21 09:34:27 +03:00
{ "get", (PyCFunction)py_lp_ctx_get, METH_VARARGS,
"S.get(name, service_name) -> value\n"
"Find specified parameter." },
{ "set", (PyCFunction)py_lp_ctx_set, METH_VARARGS,
"S.set(name, value) -> bool\n"
"Change a parameter." },
{ "private_path", (PyCFunction)py_lp_ctx_private_path, METH_VARARGS,
"S.private_path(name) -> path\n" },
{ "services", (PyCFunction)py_lp_ctx_services, METH_NOARGS,
"S.services() -> list" },
2008-12-21 09:34:27 +03:00
{ NULL }
};
static PyObject *py_lp_ctx_default_service(py_talloc_Object *self, void *closure)
{
return PyLoadparmService_FromService(lp_default_service(PyLoadparmContext_AsLoadparmContext(self)));
2008-12-21 09:34:27 +03:00
}
static PyObject *py_lp_ctx_config_file(py_talloc_Object *self, void *closure)
{
const char *configfile = lp_configfile(PyLoadparmContext_AsLoadparmContext(self));
if (configfile == NULL)
Py_RETURN_NONE;
else
return PyString_FromString(configfile);
2008-12-21 09:34:27 +03:00
}
static PyGetSetDef py_lp_ctx_getset[] = {
{ discard_const_p(char, "default_service"), (getter)py_lp_ctx_default_service, NULL, NULL },
{ discard_const_p(char, "configfile"), (getter)py_lp_ctx_config_file, NULL,
discard_const_p(char, "Name of last config file that was loaded.") },
2008-12-21 09:34:27 +03:00
{ NULL }
};
static PyObject *py_lp_ctx_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
py_talloc_Object *ret = (py_talloc_Object *)type->tp_alloc(type, 0);
if (ret == NULL) {
PyErr_NoMemory();
return NULL;
}
ret->talloc_ctx = talloc_new(NULL);
if (ret->talloc_ctx == NULL) {
PyErr_NoMemory();
return NULL;
}
ret->ptr = loadparm_init(ret->talloc_ctx);
return (PyObject *)ret;
2008-12-21 09:34:27 +03:00
}
static Py_ssize_t py_lp_ctx_len(py_talloc_Object *self)
{
return lp_numservices(PyLoadparmContext_AsLoadparmContext(self));
2008-12-21 09:34:27 +03:00
}
static PyObject *py_lp_ctx_getitem(py_talloc_Object *self, PyObject *name)
{
struct loadparm_service *service;
if (!PyString_Check(name)) {
PyErr_SetString(PyExc_TypeError, "Only string subscripts are supported");
return NULL;
}
service = lp_service(PyLoadparmContext_AsLoadparmContext(self), PyString_AsString(name));
2008-12-21 09:34:27 +03:00
if (service == NULL) {
PyErr_SetString(PyExc_KeyError, "No such section");
return NULL;
}
return PyLoadparmService_FromService(service);
}
static PyMappingMethods py_lp_ctx_mapping = {
.mp_length = (lenfunc)py_lp_ctx_len,
.mp_subscript = (binaryfunc)py_lp_ctx_getitem,
};
PyTypeObject PyLoadparmContext = {
.tp_name = "LoadParm",
2008-12-21 09:34:27 +03:00
.tp_basicsize = sizeof(py_talloc_Object),
.tp_dealloc = py_talloc_dealloc,
.tp_getset = py_lp_ctx_getset,
.tp_methods = py_lp_ctx_methods,
.tp_new = py_lp_ctx_new,
.tp_as_mapping = &py_lp_ctx_mapping,
.tp_flags = Py_TPFLAGS_DEFAULT,
};
PyTypeObject PyLoadparmService = {
.tp_name = "LoadparmService",
.tp_dealloc = py_talloc_dealloc,
.tp_basicsize = sizeof(py_talloc_Object),
.tp_flags = Py_TPFLAGS_DEFAULT,
};
static PyObject *py_default_path(PyObject *self)
{
return PyString_FromString(lp_default_path());
}
static PyMethodDef pyparam_methods[] = {
{ "default_path", (PyCFunction)py_default_path, METH_NOARGS,
"Returns the default smb.conf path." },
{ NULL }
};
2008-12-21 09:34:27 +03:00
void initparam(void)
{
PyObject *m;
if (PyType_Ready(&PyLoadparmContext) < 0)
return;
m = Py_InitModule3("param", pyparam_methods, "Parsing and writing Samba configuration files.");
2008-12-21 09:34:27 +03:00
if (m == NULL)
return;
Py_INCREF(&PyLoadparmContext);
PyModule_AddObject(m, "LoadParm", (PyObject *)&PyLoadparmContext);
2008-12-21 09:34:27 +03:00
}