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-rw-r--r--source4/ntvfs/posix/python/pyposix_eadb.c126
-rw-r--r--source4/ntvfs/posix/python/pyxattr_tdb.c72
-rw-r--r--source4/ntvfs/posix/wscript_build8
-rw-r--r--source4/scripting/python/samba/ntacls.py36
4 files changed, 208 insertions, 34 deletions
diff --git a/source4/ntvfs/posix/python/pyposix_eadb.c b/source4/ntvfs/posix/python/pyposix_eadb.c
new file mode 100644
index 0000000000..226160f88d
--- /dev/null
+++ b/source4/ntvfs/posix/python/pyposix_eadb.c
@@ -0,0 +1,126 @@
+/*
+ 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 <Python.h>
+#include "includes.h"
+#include "system/filesys.h"
+#include "tdb_compat.h"
+#include "lib/tdb_wrap/tdb_wrap.h"
+#include "librpc/ndr/libndr.h"
+#include "lib/util/wrap_xattr.h"
+#include "ntvfs/posix/posix_eadb.h"
+#include "libcli/util/pyerrors.h"
+#include "param/pyparam.h"
+
+void initxattr_tdb(void);
+
+static PyObject *py_is_xattr_supported(PyObject *self)
+{
+ return Py_True;
+}
+
+static PyObject *py_wrap_setxattr(PyObject *self, PyObject *args)
+{
+ char *filename, *attribute, *tdbname;
+ DATA_BLOB blob;
+ int blobsize;
+ NTSTATUS status;
+ TALLOC_CTX *mem_ctx;
+ struct tdb_wrap *eadb;
+
+ if (!PyArg_ParseTuple(args, "ssss#", &tdbname, &filename, &attribute,
+ &blob.data, &blobsize))
+ return NULL;
+
+ blob.length = blobsize;
+ mem_ctx = talloc_new(NULL);
+ eadb = tdb_wrap_open(mem_ctx, tdbname, 50000,
+ TDB_DEFAULT, O_RDWR|O_CREAT, 0600,
+ py_default_loadparm_context(mem_ctx));
+
+ if (eadb == NULL) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ talloc_free(mem_ctx);
+ return NULL;
+ }
+ status = push_xattr_blob_tdb_raw(eadb, attribute, filename, -1,
+ &blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ PyErr_SetNTSTATUS(status);
+ 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;
+ DATA_BLOB blob;
+ PyObject *ret;
+ NTSTATUS status;
+ struct tdb_wrap *eadb = NULL;
+
+ if (!PyArg_ParseTuple(args, "sss", &tdbname, &filename, &attribute))
+ return NULL;
+
+ mem_ctx = talloc_new(NULL);
+ eadb = tdb_wrap_open(mem_ctx, tdbname, 50000,
+ TDB_DEFAULT, O_RDWR|O_CREAT, 0600, py_default_loadparm_context(mem_ctx));
+ if (eadb == NULL) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ talloc_free(mem_ctx);
+ return NULL;
+ }
+ status = pull_xattr_blob_tdb_raw(eadb, mem_ctx, attribute, filename,
+ -1, 100, &blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ PyErr_SetNTSTATUS(status);
+ talloc_free(mem_ctx);
+ return NULL;
+ }
+ ret = PyString_FromStringAndSize((char *)blob.data, blob.length);
+ talloc_free(mem_ctx);
+ return ret;
+}
+
+static PyMethodDef py_posix_eadb_methods[] = {
+ { "wrap_getxattr", (PyCFunction)py_wrap_getxattr, METH_VARARGS,
+ "wrap_getxattr(filename,attribute) -> blob\n"
+ "Retreive 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"},
+ { NULL }
+};
+
+void initposix_eadb(void)
+{
+ PyObject *m;
+
+ m = Py_InitModule3("posix_eadb", py_posix_eadb_methods,
+ "Python bindings for xattr manipulation.");
+ if (m == NULL)
+ return;
+}
diff --git a/source4/ntvfs/posix/python/pyxattr_tdb.c b/source4/ntvfs/posix/python/pyxattr_tdb.c
index d1be879514..18ac091787 100644
--- a/source4/ntvfs/posix/python/pyxattr_tdb.c
+++ b/source4/ntvfs/posix/python/pyxattr_tdb.c
@@ -28,6 +28,10 @@
#include "ntvfs/posix/posix_eadb.h"
#include "libcli/util/pyerrors.h"
#include "param/pyparam.h"
+#include "source3/lib/dbwrap/dbwrap.h"
+#include "source3/lib/dbwrap/dbwrap_open.h"
+#include "source3/lib/dbwrap/dbwrap_tdb.h"
+#include "source3/lib/xattr_tdb.h"
void initxattr_tdb(void);
@@ -41,9 +45,11 @@ static PyObject *py_wrap_setxattr(PyObject *self, PyObject *args)
char *filename, *attribute, *tdbname;
DATA_BLOB blob;
int blobsize;
- NTSTATUS status;
+ int ret;
TALLOC_CTX *mem_ctx;
- struct tdb_wrap *eadb;
+ struct db_context *eadb = NULL;
+ struct file_id id;
+ struct stat sbuf;
if (!PyArg_ParseTuple(args, "ssss#", &tdbname, &filename, &attribute,
&blob.data, &blobsize))
@@ -51,19 +57,29 @@ static PyObject *py_wrap_setxattr(PyObject *self, PyObject *args)
blob.length = blobsize;
mem_ctx = talloc_new(NULL);
- eadb = tdb_wrap_open(mem_ctx, tdbname, 50000,
- TDB_DEFAULT, O_RDWR|O_CREAT, 0600,
- py_default_loadparm_context(mem_ctx));
+ eadb = db_open_tdb(mem_ctx, py_default_loadparm_context(mem_ctx), tdbname, 50000,
+ TDB_DEFAULT, O_RDWR|O_CREAT, 0600, DBWRAP_LOCK_ORDER_2);
if (eadb == NULL) {
PyErr_SetFromErrno(PyExc_IOError);
talloc_free(mem_ctx);
return NULL;
}
- status = push_xattr_blob_tdb_raw(eadb, attribute, filename, -1,
- &blob);
- if (!NT_STATUS_IS_OK(status)) {
- PyErr_SetNTSTATUS(status);
+
+ 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;
}
@@ -76,31 +92,47 @@ static PyObject *py_wrap_getxattr(PyObject *self, PyObject *args)
char *filename, *attribute, *tdbname;
TALLOC_CTX *mem_ctx;
DATA_BLOB blob;
- PyObject *ret;
- NTSTATUS status;
- struct tdb_wrap *eadb = NULL;
+ 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);
- eadb = tdb_wrap_open(mem_ctx, tdbname, 50000,
- TDB_DEFAULT, O_RDWR|O_CREAT, 0600, py_default_loadparm_context(mem_ctx));
+
+ eadb = db_open_tdb(mem_ctx, py_default_loadparm_context(mem_ctx), tdbname, 50000,
+ TDB_DEFAULT, O_RDWR|O_CREAT, 0600, DBWRAP_LOCK_ORDER_2);
+
if (eadb == NULL) {
PyErr_SetFromErrno(PyExc_IOError);
talloc_free(mem_ctx);
return NULL;
}
- status = pull_xattr_blob_tdb_raw(eadb, mem_ctx, attribute, filename,
- -1, 100, &blob);
- if (!NT_STATUS_IS_OK(status)) {
- PyErr_SetNTSTATUS(status);
+
+ 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 = PyString_FromStringAndSize((char *)blob.data, blob.length);
+ ret_obj = PyString_FromStringAndSize((char *)blob.data, xattr_size);
talloc_free(mem_ctx);
- return ret;
+ return ret_obj;
}
static PyMethodDef py_xattr_methods[] = {
diff --git a/source4/ntvfs/posix/wscript_build b/source4/ntvfs/posix/wscript_build
index 8bd7648b82..2a6a3dc277 100644
--- a/source4/ntvfs/posix/wscript_build
+++ b/source4/ntvfs/posix/wscript_build
@@ -52,9 +52,15 @@ bld.SAMBA_LIBRARY('posix_eadb',
autoproto='posix_eadb_proto.h',
private_library=True)
+bld.SAMBA_PYTHON('python_posix_eadb',
+ source='python/pyposix_eadb.c',
+ deps='pyparam_util posix_eadb',
+ realname='samba/posix_eadb.so'
+ )
+
bld.SAMBA_PYTHON('python_xattr_tdb',
source='python/pyxattr_tdb.c',
- deps='pyparam_util posix_eadb',
+ deps='pyparam_util xattr_tdb',
realname='samba/xattr_tdb.so'
)
diff --git a/source4/scripting/python/samba/ntacls.py b/source4/scripting/python/samba/ntacls.py
index 9b68f23e04..51d6de569d 100644
--- a/source4/scripting/python/samba/ntacls.py
+++ b/source4/scripting/python/samba/ntacls.py
@@ -20,7 +20,7 @@
import os
-import samba.xattr_native, samba.xattr_tdb
+import samba.xattr_native, samba.xattr_tdb, samba.posix_eadb
from samba.dcerpc import security, xattr
from samba.ndr import ndr_pack, ndr_unpack
@@ -31,28 +31,38 @@ class XattrBackendError(Exception):
def checkset_backend(lp, backend, eadbfile):
'''return the path to the eadb, or None'''
if backend is None:
- return lp.get("posix:eadb")
+ xattr_tdb = lp.get("xattr_tdb:file")
+ if xattr_tdb is not None:
+ return (samba.xattr_tdb, lp.get("xattr_tdb:file"))
+ posix_eadb = lp.get("posix:eadb")
+ if posix_eadb is not None:
+ return (samba.posix_eadb, lp.get("posix:eadb"))
elif backend == "native":
- return None
+ return (None, None)
+ elif backend == "eadb":
+ if eadbfile is not None:
+ return (samba.posix_eadb, eadbfile)
+ else:
+ return (samba.posix_eadb, os.path.abspath(os.path.join(lp.get("private dir"), "eadb.tdb")))
elif backend == "tdb":
if eadbfile is not None:
- return eadbfile
+ return (samba.xattr_tdb, eadbfile)
else:
- return os.path.abspath(os.path.join(lp.get("private dir"), "eadb.tdb"))
+ return (samba.xattr_tdb, os.path.abspath(os.path.join(lp.get("state dir"), "xattr.tdb")))
else:
raise XattrBackendError("Invalid xattr backend choice %s"%backend)
def getntacl(lp, file, backend=None, eadbfile=None):
- eadbname = checkset_backend(lp, backend, eadbfile)
- if eadbname is not None:
+ (backend_obj, dbname) = checkset_backend(lp, backend, eadbfile)
+ if dbname is not None:
try:
- attribute = samba.xattr_tdb.wrap_getxattr(eadbname, file,
+ attribute = backend_obj.wrap_getxattr(dbname, file,
xattr.XATTR_NTACL_NAME)
except Exception:
# FIXME: Don't catch all exceptions, just those related to opening
# xattrdb
- print "Fail to open %s" % eadbname
+ print "Fail to open %s" % dbname
attribute = samba.xattr_native.wrap_getxattr(file,
xattr.XATTR_NTACL_NAME)
else:
@@ -63,20 +73,20 @@ def getntacl(lp, file, backend=None, eadbfile=None):
def setntacl(lp, file, sddl, domsid, backend=None, eadbfile=None):
- eadbname = checkset_backend(lp, backend, eadbfile)
+ (backend_obj, dbname) = checkset_backend(lp, backend, eadbfile)
ntacl = xattr.NTACL()
ntacl.version = 1
sid = security.dom_sid(domsid)
sd = security.descriptor.from_sddl(sddl, sid)
ntacl.info = sd
- if eadbname is not None:
+ if dbname is not None:
try:
- samba.xattr_tdb.wrap_setxattr(eadbname,
+ backend_obj.wrap_setxattr(dbname,
file, xattr.XATTR_NTACL_NAME, ndr_pack(ntacl))
except Exception:
# FIXME: Don't catch all exceptions, just those related to opening
# xattrdb
- print "Fail to open %s" % eadbname
+ print "Fail to open %s" % dbname
samba.xattr_native.wrap_setxattr(file, xattr.XATTR_NTACL_NAME,
ndr_pack(ntacl))
else:
generated by cgit (git 2.34.1) at 2024-12-14 16:23:09 +0000