1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/*
Unix SMB/CIFS implementation. Xattr manipulation bindings.
Copyright (C) Matthieu Patou <mat@matws.net> 2009-2010
Base on work of pyglue.c by Jelmer Vernooij <jelmer@samba.org> 2007 and
Matthias Dieter Wallnöfer 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 "lib/replace/system/python.h"
#include "python/py3compat.h"
#include "includes.h"
#include "system/filesys.h"
#include <tdb.h>
#include "lib/tdb_wrap/tdb_wrap.h"
#include "librpc/ndr/libndr.h"
#include "ntvfs/posix/posix_eadb.h"
#include "libcli/util/pyerrors.h"
#include "param/pyparam.h"
#include "lib/dbwrap/dbwrap.h"
#include "lib/dbwrap/dbwrap_open.h"
#include "lib/dbwrap/dbwrap_tdb.h"
#include "source3/lib/xattr_tdb.h"
static PyObject *py_is_xattr_supported(PyObject *self,
PyObject *Py_UNUSED(ignored))
{
Py_RETURN_TRUE;
}
static PyObject *py_wrap_setxattr(PyObject *self, PyObject *args)
{
char *filename, *attribute, *tdbname;
DATA_BLOB blob;
Py_ssize_t blobsize;
int ret;
TALLOC_CTX *mem_ctx;
struct loadparm_context *lp_ctx;
struct db_context *eadb = NULL;
struct file_id id;
struct stat sbuf;
if (!PyArg_ParseTuple(args, "sss"PYARG_BYTES_LEN, &tdbname, &filename, &attribute,
&blob.data, &blobsize))
return NULL;
blob.length = blobsize;
mem_ctx = talloc_new(NULL);
lp_ctx = py_default_loadparm_context(mem_ctx);
eadb = db_open_tdb(mem_ctx, tdbname, 50000,
lpcfg_tdb_flags(lp_ctx, TDB_DEFAULT),
O_RDWR|O_CREAT, 0600, DBWRAP_LOCK_ORDER_2,
DBWRAP_FLAG_NONE);
if (eadb == NULL) {
PyErr_SetFromErrno(PyExc_IOError);
talloc_free(mem_ctx);
return NULL;
}
ret = stat(filename, &sbuf);
if (ret < 0) {
PyErr_SetFromErrno(PyExc_IOError);
talloc_free(mem_ctx);
return NULL;
}
ZERO_STRUCT(id);
id.devid = sbuf.st_dev;
id.inode = sbuf.st_ino;
ret = xattr_tdb_setattr(eadb, &id, attribute, blob.data, blob.length, 0);
if (ret < 0) {
PyErr_SetFromErrno(PyExc_TypeError);
talloc_free(mem_ctx);
return NULL;
}
talloc_free(mem_ctx);
Py_RETURN_NONE;
}
static PyObject *py_wrap_getxattr(PyObject *self, PyObject *args)
{
char *filename, *attribute, *tdbname;
TALLOC_CTX *mem_ctx;
struct loadparm_context *lp_ctx;
DATA_BLOB blob;
PyObject *ret_obj;
int ret;
ssize_t xattr_size;
struct db_context *eadb = NULL;
struct file_id id;
struct stat sbuf;
if (!PyArg_ParseTuple(args, "sss", &tdbname, &filename, &attribute))
return NULL;
mem_ctx = talloc_new(NULL);
lp_ctx = py_default_loadparm_context(mem_ctx);
eadb = db_open_tdb(mem_ctx, tdbname, 50000,
lpcfg_tdb_flags(lp_ctx, TDB_DEFAULT),
O_RDWR|O_CREAT, 0600, DBWRAP_LOCK_ORDER_2,
DBWRAP_FLAG_NONE);
if (eadb == NULL) {
PyErr_SetFromErrno(PyExc_IOError);
talloc_free(mem_ctx);
return NULL;
}
ret = stat(filename, &sbuf);
if (ret < 0) {
PyErr_SetFromErrno(PyExc_IOError);
talloc_free(mem_ctx);
return NULL;
}
ZERO_STRUCT(id);
id.devid = sbuf.st_dev;
id.inode = sbuf.st_ino;
xattr_size = xattr_tdb_getattr(eadb, mem_ctx, &id, attribute, &blob);
if (xattr_size < 0) {
PyErr_SetFromErrno(PyExc_TypeError);
talloc_free(mem_ctx);
return NULL;
}
ret_obj = Py_BuildValue(PYARG_BYTES_LEN, blob.data, xattr_size);
talloc_free(mem_ctx);
return ret_obj;
}
static PyMethodDef py_xattr_methods[] = {
{ "wrap_getxattr", (PyCFunction)py_wrap_getxattr, METH_VARARGS,
"wrap_getxattr(filename,attribute) -> blob\n"
"Retrieve given attribute on the given file." },
{ "wrap_setxattr", (PyCFunction)py_wrap_setxattr, METH_VARARGS,
"wrap_setxattr(filename,attribute,value)\n"
"Set the given attribute to the given value on the given file." },
{ "is_xattr_supported", (PyCFunction)py_is_xattr_supported, METH_NOARGS,
"Return true if xattr are supported on this system\n"},
{0}
};
static struct PyModuleDef moduledef = {
PyModuleDef_HEAD_INIT,
.m_name = "xattr_tdb",
.m_doc = "Python bindings for xattr manipulation.",
.m_size = -1,
.m_methods = py_xattr_methods,
};
MODULE_INIT_FUNC(xattr_tdb)
{
PyObject *m;
m = PyModule_Create(&moduledef);
if (m == NULL)
return NULL;
return m;
}
|
