mirror of
https://github.com/samba-team/samba.git
synced 2024-12-24 21:34:56 +03:00
0aed29105e
I need to get at the owner, group, DACL and SACL when testing correct ACL storage. Andrew Bartlett
511 lines
11 KiB
C
511 lines
11 KiB
C
/*
|
|
Unix SMB/CIFS implementation.
|
|
Set NT and POSIX ACLs and other VFS operations from Python
|
|
|
|
Copyrigyt (C) Andrew Bartlett 2012
|
|
Copyright (C) Jeremy Allison 1994-2009.
|
|
Copyright (C) Andreas Gruenbacher 2002.
|
|
Copyright (C) Simo Sorce <idra@samba.org> 2009.
|
|
Copyright (C) Simo Sorce 2002
|
|
Copyright (C) Eric Lorimer 2002
|
|
|
|
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 "includes.h"
|
|
#include "smbd/smbd.h"
|
|
#include <Python.h>
|
|
#include "libcli/util/pyerrors.h"
|
|
#include "librpc/rpc/pyrpc_util.h"
|
|
#include <pytalloc.h>
|
|
#include "system/filesys.h"
|
|
|
|
extern const struct generic_mapping file_generic_mapping;
|
|
|
|
#undef DBGC_CLASS
|
|
#define DBGC_CLASS DBGC_ACLS
|
|
|
|
static NTSTATUS set_sys_acl_no_snum(const char *fname,
|
|
SMB_ACL_TYPE_T acltype,
|
|
SMB_ACL_T theacl)
|
|
{
|
|
connection_struct *conn;
|
|
NTSTATUS status = NT_STATUS_OK;
|
|
int ret;
|
|
|
|
conn = talloc_zero(NULL, connection_struct);
|
|
if (conn == NULL) {
|
|
DEBUG(0, ("talloc failed\n"));
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
if (!(conn->params = talloc(conn, struct share_params))) {
|
|
DEBUG(0,("get_nt_acl_no_snum: talloc() failed!\n"));
|
|
TALLOC_FREE(conn);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
conn->params->service = -1;
|
|
|
|
set_conn_connectpath(conn, "/");
|
|
|
|
smbd_vfs_init(conn);
|
|
|
|
ret = SMB_VFS_SYS_ACL_SET_FILE( conn, fname, acltype, theacl);
|
|
if (ret != 0) {
|
|
status = map_nt_error_from_unix_common(ret);
|
|
DEBUG(0,("set_nt_acl_no_snum: fset_nt_acl returned zero.\n"));
|
|
}
|
|
|
|
conn_free(conn);
|
|
|
|
return status;
|
|
}
|
|
|
|
static NTSTATUS set_nt_acl_no_snum(const char *fname,
|
|
uint32 security_info_sent, const struct security_descriptor *sd)
|
|
{
|
|
TALLOC_CTX *frame = talloc_stackframe();
|
|
connection_struct *conn;
|
|
NTSTATUS status = NT_STATUS_OK;
|
|
files_struct *fsp;
|
|
struct smb_filename *smb_fname = NULL;
|
|
int flags;
|
|
|
|
conn = talloc_zero(frame, connection_struct);
|
|
if (conn == NULL) {
|
|
DEBUG(0, ("talloc failed\n"));
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
if (!(conn->params = talloc(conn, struct share_params))) {
|
|
DEBUG(0,("set_nt_acl_no_snum: talloc() failed!\n"));
|
|
TALLOC_FREE(frame);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
conn->params->service = -1;
|
|
|
|
set_conn_connectpath(conn, "/");
|
|
|
|
smbd_vfs_init(conn);
|
|
|
|
fsp = talloc_zero(frame, struct files_struct);
|
|
if (fsp == NULL) {
|
|
TALLOC_FREE(frame);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
fsp->fh = talloc(fsp, struct fd_handle);
|
|
if (fsp->fh == NULL) {
|
|
TALLOC_FREE(frame);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
fsp->conn = conn;
|
|
|
|
status = create_synthetic_smb_fname_split(fsp, fname, NULL,
|
|
&smb_fname);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
TALLOC_FREE(frame);
|
|
return status;
|
|
}
|
|
|
|
fsp->fsp_name = smb_fname;
|
|
|
|
#ifdef O_DIRECTORY
|
|
flags = O_RDONLY|O_DIRECTORY;
|
|
#else
|
|
/* POSIX allows us to open a directory with O_RDONLY. */
|
|
flags = O_RDONLY;
|
|
#endif
|
|
|
|
fsp->fh->fd = SMB_VFS_OPEN(conn, smb_fname, fsp, O_RDWR, 00400);
|
|
if (fsp->fh->fd == -1 && errno == EISDIR) {
|
|
fsp->fh->fd = SMB_VFS_OPEN(conn, smb_fname, fsp, flags, 00400);
|
|
}
|
|
if (fsp->fh->fd == -1) {
|
|
printf("open: error=%d (%s)\n", errno, strerror(errno));
|
|
TALLOC_FREE(frame);
|
|
return NT_STATUS_UNSUCCESSFUL;
|
|
}
|
|
|
|
status = SMB_VFS_FSET_NT_ACL( fsp, security_info_sent, sd);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DEBUG(0,("set_nt_acl_no_snum: fset_nt_acl returned %s.\n", nt_errstr(status)));
|
|
}
|
|
|
|
conn_free(conn);
|
|
TALLOC_FREE(frame);
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
static SMB_ACL_T make_simple_acl(gid_t gid, mode_t chmod_mode)
|
|
{
|
|
mode_t mode = SMB_ACL_READ|SMB_ACL_WRITE;
|
|
|
|
mode_t mode_user = (chmod_mode & 0700) >> 16;
|
|
mode_t mode_group = (chmod_mode & 070) >> 8;
|
|
mode_t mode_other = chmod_mode & 07;
|
|
|
|
SMB_ACL_ENTRY_T entry;
|
|
SMB_ACL_T acl = sys_acl_init(4);
|
|
|
|
if (!acl) {
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_create_entry(&acl, &entry) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_set_tag_type(entry, SMB_ACL_USER_OBJ) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_set_permset(entry, &mode_user) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_create_entry(&acl, &entry) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_set_tag_type(entry, SMB_ACL_GROUP_OBJ) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_set_permset(entry, &mode_group) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_create_entry(&acl, &entry) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_set_tag_type(entry, SMB_ACL_OTHER) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_set_permset(entry, &mode_other) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (gid != -1) {
|
|
if (sys_acl_create_entry(&acl, &entry) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_set_tag_type(entry, SMB_ACL_GROUP) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_set_qualifier(entry, &gid) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_set_permset(entry, &mode_group) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (sys_acl_create_entry(&acl, &entry) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_set_tag_type(entry, SMB_ACL_MASK) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
|
|
if (sys_acl_set_permset(entry, &mode) != 0) {
|
|
TALLOC_FREE(acl);
|
|
return NULL;
|
|
}
|
|
return acl;
|
|
}
|
|
|
|
/*
|
|
set a simple ACL on a file, as a test
|
|
*/
|
|
static PyObject *py_smbd_set_simple_acl(PyObject *self, PyObject *args)
|
|
{
|
|
NTSTATUS status;
|
|
char *fname;
|
|
int mode, gid = -1;
|
|
SMB_ACL_T acl;
|
|
TALLOC_CTX *frame;
|
|
|
|
if (!PyArg_ParseTuple(args, "si|i", &fname, &mode, &gid))
|
|
return NULL;
|
|
|
|
acl = make_simple_acl(gid, mode);
|
|
|
|
frame = talloc_stackframe();
|
|
|
|
status = set_sys_acl_no_snum(fname, SMB_ACL_TYPE_ACCESS, acl);
|
|
TALLOC_FREE(acl);
|
|
|
|
TALLOC_FREE(frame);
|
|
|
|
PyErr_NTSTATUS_IS_ERR_RAISE(status);
|
|
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
/*
|
|
chown a file
|
|
*/
|
|
static PyObject *py_smbd_chown(PyObject *self, PyObject *args)
|
|
{
|
|
connection_struct *conn;
|
|
NTSTATUS status = NT_STATUS_OK;
|
|
int ret;
|
|
|
|
char *fname;
|
|
int uid, gid;
|
|
TALLOC_CTX *frame;
|
|
|
|
if (!PyArg_ParseTuple(args, "sii", &fname, &uid, &gid))
|
|
return NULL;
|
|
|
|
frame = talloc_stackframe();
|
|
|
|
conn = talloc_zero(frame, connection_struct);
|
|
if (conn == NULL) {
|
|
PyErr_NoMemory();
|
|
return NULL;
|
|
}
|
|
|
|
if (!(conn->params = talloc(conn, struct share_params))) {
|
|
PyErr_NoMemory();
|
|
return NULL;
|
|
}
|
|
|
|
conn->params->service = -1;
|
|
|
|
set_conn_connectpath(conn, "/");
|
|
|
|
smbd_vfs_init(conn);
|
|
|
|
ret = SMB_VFS_CHOWN( conn, fname, uid, gid);
|
|
if (ret != 0) {
|
|
status = map_nt_error_from_unix_common(errno);
|
|
DEBUG(0,("chown returned failure: %s\n", strerror(errno)));
|
|
}
|
|
|
|
conn_free(conn);
|
|
|
|
TALLOC_FREE(frame);
|
|
|
|
PyErr_NTSTATUS_IS_ERR_RAISE(status);
|
|
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
/*
|
|
check if we have ACL support
|
|
*/
|
|
static PyObject *py_smbd_have_posix_acls(PyObject *self, PyObject *args)
|
|
{
|
|
#ifdef HAVE_POSIX_ACLS
|
|
return PyBool_FromLong(true);
|
|
#else
|
|
return PyBool_FromLong(false);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
set the NT ACL on a file
|
|
*/
|
|
static PyObject *py_smbd_set_nt_acl(PyObject *self, PyObject *args)
|
|
{
|
|
NTSTATUS status;
|
|
char *fname;
|
|
int security_info_sent;
|
|
PyObject *py_sd;
|
|
struct security_descriptor *sd;
|
|
|
|
if (!PyArg_ParseTuple(args, "siO", &fname, &security_info_sent, &py_sd))
|
|
return NULL;
|
|
|
|
if (!py_check_dcerpc_type(py_sd, "samba.dcerpc.security", "descriptor")) {
|
|
return NULL;
|
|
}
|
|
|
|
sd = pytalloc_get_type(py_sd, struct security_descriptor);
|
|
|
|
status = set_nt_acl_no_snum(fname, security_info_sent, sd);
|
|
PyErr_NTSTATUS_IS_ERR_RAISE(status);
|
|
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
/*
|
|
Return the NT ACL on a file
|
|
*/
|
|
static PyObject *py_smbd_get_nt_acl(PyObject *self, PyObject *args)
|
|
{
|
|
char *fname;
|
|
int security_info_wanted;
|
|
PyObject *py_sd;
|
|
struct security_descriptor *sd;
|
|
TALLOC_CTX *tmp_ctx = talloc_new(NULL);
|
|
|
|
if (!PyArg_ParseTuple(args, "si", &fname, &security_info_wanted))
|
|
return NULL;
|
|
|
|
sd = get_nt_acl_no_snum(tmp_ctx, fname, security_info_wanted);
|
|
|
|
py_sd = py_return_ndr_struct("samba.dcerpc.security", "descriptor", sd, sd);
|
|
|
|
talloc_free(tmp_ctx);
|
|
|
|
return py_sd;
|
|
}
|
|
|
|
/*
|
|
set the posix (or similar) ACL on a file
|
|
*/
|
|
static PyObject *py_smbd_set_sys_acl(PyObject *self, PyObject *args)
|
|
{
|
|
NTSTATUS status;
|
|
char *fname;
|
|
PyObject *py_acl;
|
|
struct smb_acl_t *acl;
|
|
int acl_type;
|
|
|
|
if (!PyArg_ParseTuple(args, "siO", &fname, &acl_type, &py_acl))
|
|
return NULL;
|
|
|
|
if (!py_check_dcerpc_type(py_acl, "samba.dcerpc.smb_acl", "t")) {
|
|
return NULL;
|
|
}
|
|
|
|
acl = pytalloc_get_type(py_acl, struct smb_acl_t);
|
|
|
|
status = set_sys_acl_no_snum(fname, acl_type, acl);
|
|
PyErr_NTSTATUS_IS_ERR_RAISE(status);
|
|
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
/*
|
|
Return the posix (or similar) ACL on a file
|
|
*/
|
|
static PyObject *py_smbd_get_sys_acl(PyObject *self, PyObject *args)
|
|
{
|
|
char *fname;
|
|
PyObject *py_acl;
|
|
struct smb_acl_t *acl;
|
|
int acl_type;
|
|
TALLOC_CTX *frame = talloc_stackframe();
|
|
connection_struct *conn;
|
|
NTSTATUS status = NT_STATUS_OK;
|
|
|
|
if (!PyArg_ParseTuple(args, "si", &fname, &acl_type)) {
|
|
TALLOC_FREE(frame);
|
|
return NULL;
|
|
}
|
|
|
|
conn = talloc_zero(frame, connection_struct);
|
|
if (conn == NULL) {
|
|
DEBUG(0, ("talloc failed\n"));
|
|
PyErr_NoMemory();
|
|
TALLOC_FREE(frame);
|
|
return NULL;
|
|
}
|
|
|
|
if (!(conn->params = talloc(conn, struct share_params))) {
|
|
DEBUG(0,("get_nt_acl_no_snum: talloc() failed!\n"));
|
|
PyErr_NoMemory();
|
|
TALLOC_FREE(frame);
|
|
return NULL;
|
|
}
|
|
|
|
conn->params->service = -1;
|
|
|
|
set_conn_connectpath(conn, "/");
|
|
|
|
smbd_vfs_init(conn);
|
|
|
|
acl = SMB_VFS_SYS_ACL_GET_FILE( conn, fname, acl_type);
|
|
if (!acl) {
|
|
TALLOC_FREE(frame);
|
|
status = map_nt_error_from_unix_common(errno);
|
|
DEBUG(0,("sys_acl_get_file returned NULL: %s\n", strerror(errno)));
|
|
PyErr_NTSTATUS_IS_ERR_RAISE(status);
|
|
}
|
|
|
|
talloc_steal(frame, acl);
|
|
conn_free(conn);
|
|
|
|
py_acl = py_return_ndr_struct("samba.dcerpc.smb_acl", "t", acl, acl);
|
|
|
|
TALLOC_FREE(frame);
|
|
|
|
return py_acl;
|
|
}
|
|
|
|
static PyMethodDef py_smbd_methods[] = {
|
|
{ "have_posix_acls",
|
|
(PyCFunction)py_smbd_have_posix_acls, METH_VARARGS,
|
|
NULL },
|
|
{ "set_simple_acl",
|
|
(PyCFunction)py_smbd_set_simple_acl, METH_VARARGS,
|
|
NULL },
|
|
{ "set_nt_acl",
|
|
(PyCFunction)py_smbd_set_nt_acl, METH_VARARGS,
|
|
NULL },
|
|
{ "get_nt_acl",
|
|
(PyCFunction)py_smbd_get_nt_acl, METH_VARARGS,
|
|
NULL },
|
|
{ "get_sys_acl",
|
|
(PyCFunction)py_smbd_get_sys_acl, METH_VARARGS,
|
|
NULL },
|
|
{ "set_sys_acl",
|
|
(PyCFunction)py_smbd_set_sys_acl, METH_VARARGS,
|
|
NULL },
|
|
{ "chown",
|
|
(PyCFunction)py_smbd_chown, METH_VARARGS,
|
|
NULL },
|
|
{ NULL }
|
|
};
|
|
|
|
void initsmbd(void);
|
|
void initsmbd(void)
|
|
{
|
|
PyObject *m;
|
|
|
|
m = Py_InitModule3("smbd", py_smbd_methods,
|
|
"Python bindings for the smbd file server.");
|
|
if (m == NULL)
|
|
return;
|
|
|
|
}
|