merge upstream 3.4.0

git-svn-id: svn://svn.debian.org/svn/pkg-samba/trunk/samba@2936 fc4039ab-9d04-0410-8cac-899223bdd6b0

1 files changed, 385 insertions, 0 deletions

diff --git a/source4/param/pyparam.c b/source4/param/pyparam.c
new file mode 100644
index 0000000000..efaedf7b41
--- /dev/null
+++ b/source4/param/pyparam.c
@@ -0,0 +1,385 @@
+/* 
+   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>
+#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)
+
+PyAPI_DATA(PyTypeObject) PyLoadparmContext;
+PyAPI_DATA(PyTypeObject) PyLoadparmService;
+
+PyObject *PyLoadparmService_FromService(struct loadparm_service *service)
+{
+	return py_talloc_import(&PyLoadparmService, service);
+}
+
+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);
+	if (parm == NULL || parm->pclass == P_GLOBAL) {
+	    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);
+
+	if (!ret) {
+		PyErr_Format(PyExc_RuntimeError, "Unable to load file %s", filename);
+		return NULL;
+	}
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_lp_ctx_load_default(py_talloc_Object *self)
+{
+	bool ret;
+        ret = lp_load_default(PyLoadparmContext_AsLoadparmContext(self));
+
+	if (!ret) {
+		PyErr_SetString(PyExc_RuntimeError, "Unable to load default file");
+		return NULL;
+	}
+	Py_RETURN_NONE;
+}
+
+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);
+	if (ret == NULL)
+		Py_RETURN_NONE;
+	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));
+}
+
+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));
+}
+
+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);
+	if (!ret) {
+		PyErr_SetString(PyExc_RuntimeError, "Unable to set parameter");
+		return NULL;
+        }
+
+	Py_RETURN_NONE;
+}
+
+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);
+	ret = PyString_FromString(path);
+	talloc_free(path);
+
+	return ret;
+}
+
+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." },
+	{ "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" },
+	{ NULL }
+};
+
+static PyObject *py_lp_ctx_default_service(py_talloc_Object *self, void *closure)
+{
+	return PyLoadparmService_FromService(lp_default_service(PyLoadparmContext_AsLoadparmContext(self)));
+}
+
+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);
+}
+
+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.") },
+	{ NULL }
+};
+
+static PyObject *py_lp_ctx_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
+{
+	return py_talloc_import(type, loadparm_init(NULL));
+}
+
+static Py_ssize_t py_lp_ctx_len(py_talloc_Object *self)
+{
+	return lp_numservices(PyLoadparmContext_AsLoadparmContext(self));
+}
+
+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));
+	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",
+	.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,
+};
+
+_PUBLIC_ struct loadparm_context *lp_from_py_object(PyObject *py_obj)
+{
+    struct loadparm_context *lp_ctx;
+    if (PyString_Check(py_obj)) {
+        lp_ctx = loadparm_init(NULL);
+        if (!lp_load(lp_ctx, PyString_AsString(py_obj))) {
+            talloc_free(lp_ctx);
+	    PyErr_Format(PyExc_RuntimeError, 
+			 "Unable to load %s", PyString_AsString(py_obj));
+            return NULL;
+        }
+        return lp_ctx;
+    }
+
+    if (py_obj == Py_None) {
+        lp_ctx = loadparm_init(NULL);
+	/* We're not checking that loading the file succeeded *on purpose */
+        lp_load_default(lp_ctx);
+        return lp_ctx;
+    }
+
+    return PyLoadparmContext_AsLoadparmContext(py_obj);
+}
+
+struct loadparm_context *py_default_loadparm_context(TALLOC_CTX *mem_ctx)
+{
+    struct loadparm_context *ret;
+    ret = loadparm_init(mem_ctx);
+    if (!lp_load_default(ret))
+        return NULL;
+    return ret;
+}
+
+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 }
+};
+
+void initparam(void)
+{
+	PyObject *m;
+
+	if (PyType_Ready(&PyLoadparmContext) < 0)
+		return;
+
+	m = Py_InitModule3("param", pyparam_methods, "Parsing and writing Samba configuration files.");
+	if (m == NULL)
+		return;
+
+	Py_INCREF(&PyLoadparmContext);
+	PyModule_AddObject(m, "LoadParm", (PyObject *)&PyLoadparmContext);
+}