blob: b35cfe33de11bb0f7311dfff547de9dfec276876 [file] [log] [blame]
/*
* Python bindings for the libmount library.
*
* Copyright (C) 2013, Red Hat, Inc. All rights reserved.
* Written by Ondrej Oprala and Karel Zak
*
* This file is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This file 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this file; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* TODO:
* mnt_fs_match_{source,target}
* mnt_fs_get_{attribute,option}
*/
#include "pylibmount.h"
#include <errno.h>
#define Fs_HELP "Fs(source=None, root=None, target=None, fstype=None, options=None, attributes=None, freq=0, passno=0)"
static PyMemberDef Fs_members[] = {
{NULL}
};
static PyObject *Fs_get_tag(FsObject *self)
{
const char *tag = NULL, *val = NULL;
PyObject *result;
if (mnt_fs_get_tag(self->fs, &tag, &val) != 0)
return NULL;
result = Py_BuildValue("(ss)", tag, val);
if (!result)
PyErr_SetString(PyExc_RuntimeError, CONSTRUCT_ERR);
return result;
}
static PyObject *Fs_get_id(FsObject *self)
{
return PyObjectResultInt(mnt_fs_get_id(self->fs));
}
static PyObject *Fs_get_parent_id(FsObject *self)
{
return PyObjectResultInt(mnt_fs_get_parent_id(self->fs));
}
static PyObject *Fs_get_devno(FsObject *self)
{
return PyObjectResultInt(mnt_fs_get_devno(self->fs));
}
static void _dump_debug_string(const char *lead, const char *s, char quote)
{
/* PySys_WriteStdout() will automatically truncate any '%s' token
* longer than a certain length (documented as 1000 bytes, but we
* give ourselves some margin here just in case). The only way I
* know to get around this is to print such strings in bite-sized
* chunks.
*/
static const unsigned int _PY_MAX_LEN = 900;
static const char *_PY_MAX_LEN_FMT = "%.900s";
unsigned int len;
if (lead != NULL)
PySys_WriteStdout("%s", lead);
if (quote != 0)
PySys_WriteStdout("%c", quote);
for (len = strlen(s); len > _PY_MAX_LEN; len -= _PY_MAX_LEN, s += _PY_MAX_LEN)
PySys_WriteStdout(_PY_MAX_LEN_FMT, s);
if (len > 0)
PySys_WriteStdout(_PY_MAX_LEN_FMT, s);
if (quote != 0)
PySys_WriteStdout("%c\n", quote);
else
PySys_WriteStdout("\n");
}
#define Fs_print_debug_HELP "print_debug()\n\n"
static PyObject *Fs_print_debug(FsObject *self)
{
PySys_WriteStdout("------ fs: %p\n", self->fs);
_dump_debug_string("source: ", mnt_fs_get_source(self->fs), 0);
_dump_debug_string("target: ", mnt_fs_get_target(self->fs), 0);
_dump_debug_string("fstype: ", mnt_fs_get_fstype(self->fs), 0);
if (mnt_fs_get_options(self->fs))
_dump_debug_string("optstr: ", mnt_fs_get_options(self->fs), 0);
if (mnt_fs_get_vfs_options(self->fs))
_dump_debug_string("VFS-optstr: ", mnt_fs_get_vfs_options(self->fs), 0);
if (mnt_fs_get_fs_options(self->fs))
_dump_debug_string("FS-opstr: ", mnt_fs_get_fs_options(self->fs), 0);
if (mnt_fs_get_user_options(self->fs))
_dump_debug_string("user-optstr: ", mnt_fs_get_user_options(self->fs), 0);
if (mnt_fs_get_optional_fields(self->fs))
_dump_debug_string("optional-fields: ", mnt_fs_get_optional_fields(self->fs), '\'');
if (mnt_fs_get_attributes(self->fs))
_dump_debug_string("attributes: ", mnt_fs_get_attributes(self->fs), 0);
if (mnt_fs_get_root(self->fs))
_dump_debug_string("root: ", mnt_fs_get_root(self->fs), 0);
if (mnt_fs_get_swaptype(self->fs))
_dump_debug_string("swaptype: ", mnt_fs_get_swaptype(self->fs), 0);
if (mnt_fs_get_size(self->fs))
PySys_WriteStdout("size: %jd\n", mnt_fs_get_size(self->fs));
if (mnt_fs_get_usedsize(self->fs))
PySys_WriteStdout("usedsize: %jd\n", mnt_fs_get_usedsize(self->fs));
if (mnt_fs_get_priority(self->fs))
PySys_WriteStdout("priority: %d\n", mnt_fs_get_priority(self->fs));
if (mnt_fs_get_bindsrc(self->fs))
_dump_debug_string("bindsrc: ", mnt_fs_get_bindsrc(self->fs), 0);
if (mnt_fs_get_freq(self->fs))
PySys_WriteStdout("freq: %d\n", mnt_fs_get_freq(self->fs));
if (mnt_fs_get_passno(self->fs))
PySys_WriteStdout("pass: %d\n", mnt_fs_get_passno(self->fs));
if (mnt_fs_get_id(self->fs))
PySys_WriteStdout("id: %d\n", mnt_fs_get_id(self->fs));
if (mnt_fs_get_parent_id(self->fs))
PySys_WriteStdout("parent: %d\n", mnt_fs_get_parent_id(self->fs));
if (mnt_fs_get_devno(self->fs))
PySys_WriteStdout("devno: %d:%d\n", major(mnt_fs_get_devno(self->fs)),
minor(mnt_fs_get_devno(self->fs)));
if (mnt_fs_get_tid(self->fs))
PySys_WriteStdout("tid: %d\n", mnt_fs_get_tid(self->fs));
if (mnt_fs_get_comment(self->fs))
_dump_debug_string("comment: ", mnt_fs_get_comment(self->fs), '\'');
return UL_IncRef(self);
}
/*
** Fs getters/setters
*/
static PyObject *Fs_get_comment(FsObject *self, void *closure __attribute__((unused)))
{
return PyObjectResultStr(mnt_fs_get_comment(self->fs));
}
static int Fs_set_comment(FsObject *self, PyObject *value, void *closure __attribute__((unused)))
{
char *comment = NULL;
int rc = 0;
if (!value) {
PyErr_SetString(PyExc_TypeError, NODEL_ATTR);
return -1;
}
if (!(comment = pystos(value)))
return -1;
rc = mnt_fs_set_comment(self->fs, comment);
if (rc) {
UL_RaiseExc(-rc);
return -1;
}
return 0;
}
/* source */
static PyObject *Fs_get_source(FsObject *self)
{
return PyObjectResultStr(mnt_fs_get_source(self->fs));
}
static int Fs_set_source(FsObject *self, PyObject *value, void *closure __attribute__((unused)))
{
char *source = NULL;
int rc = 0;
if (!value) {
PyErr_SetString(PyExc_TypeError, NODEL_ATTR);
return -1;
}
if (!(source = pystos(value)))
return -1;
rc = mnt_fs_set_source(self->fs, source);
if (rc) {
UL_RaiseExc(-rc);
return -1;
}
return 0;
}
static PyObject *Fs_get_srcpath(FsObject *self)
{
return PyObjectResultStr(mnt_fs_get_srcpath(self->fs));
}
static PyObject *Fs_get_root(FsObject *self)
{
return PyObjectResultStr(mnt_fs_get_root(self->fs));
}
static int Fs_set_root(FsObject *self, PyObject *value, void *closure __attribute__((unused)))
{
char *root = NULL;
int rc = 0;
if (!value) {
PyErr_SetString(PyExc_TypeError, NODEL_ATTR);
return -1;
}
if (!(root = pystos(value)))
return -1;
rc = mnt_fs_set_root(self->fs, root);
if (rc) {
UL_RaiseExc(-rc);
return -1;
}
return 0;
}
static PyObject *Fs_get_target(FsObject *self)
{
return PyObjectResultStr(mnt_fs_get_target(self->fs));
}
static int Fs_set_target(FsObject *self, PyObject *value, void *closure __attribute__((unused)))
{
char *target = NULL;
int rc = 0;
if (!value) {
PyErr_SetString(PyExc_TypeError, NODEL_ATTR);
return -1;
}
if (!(target = pystos(value)))
return -1;
rc = mnt_fs_set_target(self->fs, target);
if (rc) {
UL_RaiseExc(-rc);
return -1;
}
return 0;
}
static PyObject *Fs_get_fstype(FsObject *self)
{
return PyObjectResultStr(mnt_fs_get_fstype(self->fs));
}
static int Fs_set_fstype(FsObject *self, PyObject *value,
void *closure __attribute__((unused)))
{
char *fstype = NULL;
int rc = 0;
if (!value) {
PyErr_SetString(PyExc_TypeError, NODEL_ATTR);
return -1;
}
if (!(fstype = pystos(value)))
return -1;
rc = mnt_fs_set_fstype(self->fs, fstype);
if (rc) {
UL_RaiseExc(-rc);
return -1;
}
return 0;
}
static PyObject *Fs_get_options(FsObject *self)
{
return PyObjectResultStr(mnt_fs_get_options(self->fs));
}
static int Fs_set_options(FsObject *self, PyObject *value,
void *closure __attribute__((unused)))
{
char *options = NULL;
int rc = 0;
if (!value) {
PyErr_SetString(PyExc_TypeError, NODEL_ATTR);
return -1;
}
if (!(options = pystos(value)))
return -1;
rc = mnt_fs_set_options(self->fs, options);
if (rc) {
UL_RaiseExc(-rc);
return -1;
}
return 0;
}
static PyObject *Fs_get_vfs_options(FsObject *self)
{
return PyObjectResultStr(mnt_fs_get_vfs_options(self->fs));
}
static PyObject *Fs_get_optional_fields(FsObject *self)
{
return PyObjectResultStr(mnt_fs_get_optional_fields(self->fs));
}
static PyObject *Fs_get_fs_options(FsObject *self)
{
return PyObjectResultStr(mnt_fs_get_fs_options(self->fs));
}
static PyObject *Fs_get_user_options(FsObject *self)
{
return PyObjectResultStr(mnt_fs_get_user_options(self->fs));
}
static PyObject *Fs_get_attributes(FsObject *self)
{
return PyObjectResultStr(mnt_fs_get_attributes(self->fs));
}
static int Fs_set_attributes(FsObject *self, PyObject *value,
void *closure __attribute__((unused)))
{
char *attributes = NULL;
int rc = 0;
if (!value) {
PyErr_SetString(PyExc_TypeError, NODEL_ATTR);
return -1;
}
if (!(attributes = pystos(value)))
return -1;
rc = mnt_fs_set_attributes(self->fs, attributes);
if (rc) {
UL_RaiseExc(-rc);
return -1;
}
return 0;
}
static PyObject *Fs_get_freq(FsObject *self, void *closure __attribute__((unused)))
{
return PyObjectResultInt(mnt_fs_get_freq(self->fs));
}
static int Fs_set_freq(FsObject *self, PyObject *value,
void *closure __attribute__((unused)))
{
int freq = 0;
if (!value) {
PyErr_SetString(PyExc_TypeError, NODEL_ATTR);
return -1;
} else if (!PyLong_Check(value)) {
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return -1;
}
freq = PyLong_AsLong(value);
if (freq == -1 && PyErr_Occurred()) {
PyErr_SetString(PyExc_RuntimeError, "type conversion failed");
return -1;
}
return mnt_fs_set_freq(self->fs, freq);
}
static PyObject *Fs_get_passno(FsObject *self)
{
return PyObjectResultInt(mnt_fs_get_passno(self->fs));
}
static int Fs_set_passno(FsObject *self, PyObject *value, void *closure __attribute__((unused)))
{
int passno = 0;
if (!value) {
PyErr_SetString(PyExc_TypeError, NODEL_ATTR);
return -1;
} else if (!PyLong_Check(value)) {
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return -1;
}
passno = PyLong_AsLong(value);
if (passno == -1 && PyErr_Occurred()) {
PyErr_SetString(PyExc_RuntimeError, "type conversion failed");
return -1;
}
return mnt_fs_set_passno(self->fs, passno);
}
static PyObject *Fs_get_swaptype(FsObject *self)
{
return PyObjectResultStr(mnt_fs_get_swaptype(self->fs));
}
static PyObject *Fs_get_size(FsObject *self)
{
return PyObjectResultInt(mnt_fs_get_size(self->fs));
}
static PyObject *Fs_get_usedsize(FsObject *self)
{
return PyObjectResultInt(mnt_fs_get_usedsize(self->fs));
}
static PyObject *Fs_get_priority(FsObject *self)
{
return PyObjectResultInt(mnt_fs_get_priority(self->fs));
}
#define Fs_get_propagation_HELP "get_propagation(flags)\n\n\
Note that this function set flags to zero if not found any propagation flag\n\
in mountinfo file. The kernel default is MS_PRIVATE, this flag is not stored\n\
in the mountinfo file.\n\
\n\
Returns self or raises an exception in case of an error."
static PyObject *Fs_get_propagation(FsObject *self)
{
unsigned long flags;
int rc;
rc = mnt_fs_get_propagation(self->fs, &flags);
return rc ? UL_RaiseExc(-rc) : PyObjectResultInt(flags);
}
static PyObject *Fs_get_tid(FsObject *self)
{
return PyObjectResultInt(mnt_fs_get_tid(self->fs));
}
#define Fs_is_kernel_HELP "is_kernel()\n\nReturns 1 if the filesystem " \
"description is read from kernel e.g. /proc/mounts."
static PyObject *Fs_is_kernel(FsObject *self)
{
return PyBool_FromLong(mnt_fs_is_kernel(self->fs));
}
#define Fs_is_netfs_HELP "is_netfs()\n\nReturns 1 if the filesystem is " \
"a network filesystem"
static PyObject *Fs_is_netfs(FsObject *self)
{
return PyBool_FromLong(mnt_fs_is_netfs(self->fs));
}
#define Fs_is_pseudofs_HELP "is_pseudofs()\n\nReturns 1 if the filesystem is "\
"a pseudo fs type (proc, cgroups)"
static PyObject *Fs_is_pseudofs(FsObject *self)
{
return PyBool_FromLong(mnt_fs_is_pseudofs(self->fs));
}
#define Fs_is_swaparea_HELP "is_swaparea()\n\nReturns 1 if the filesystem " \
"uses \"swap\" as a type"
static PyObject *Fs_is_swaparea(FsObject *self)
{
return PyBool_FromLong(mnt_fs_is_swaparea(self->fs));
}
#define Fs_append_attributes_HELP "append_attributes(optstr)\n\n" \
"Appends mount attributes."
static PyObject *Fs_append_attributes(FsObject *self, PyObject *args, PyObject *kwds)
{
char *kwlist[] = {"optstr", NULL};
char *optstr = NULL;
int rc;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "s", kwlist, &optstr)) {
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return NULL;
}
rc = mnt_fs_append_attributes(self->fs, optstr);
return rc ? UL_RaiseExc(-rc) : UL_IncRef(self);
}
#define Fs_append_options_HELP "append_options(optstr)\n\n" \
"Parses (splits) optstr and appends results to VFS, " \
"FS and userspace lists of options."
static PyObject *Fs_append_options(FsObject *self, PyObject *args, PyObject *kwds)
{
char *kwlist[] = {"optstr", NULL};
char *optstr = NULL;
int rc;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "s", kwlist, &optstr)) {
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return NULL;
}
rc = mnt_fs_append_options(self->fs, optstr);
return rc ? UL_RaiseExc(-rc) : UL_IncRef(self);
}
#define Fs_prepend_attributes_HELP "prepend_attributes(optstr)\n\n" \
"Prepends mount attributes."
static PyObject *Fs_prepend_attributes(FsObject *self, PyObject *args, PyObject *kwds)
{
char *kwlist[] = {"optstr", NULL};
char *optstr = NULL;
int rc;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "s", kwlist, &optstr)) {
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return NULL;
}
rc = mnt_fs_prepend_attributes(self->fs, optstr);
return rc ? UL_RaiseExc(-rc) : UL_IncRef(self);
}
#define Fs_prepend_options_HELP "prepend_options(optstr)\n\n" \
"Parses (splits) optstr and prepends results to VFS, " \
"FS and userspace lists of options."
static PyObject *Fs_prepend_options(FsObject *self, PyObject *args, PyObject *kwds)
{
char *kwlist[] = {"optstr", NULL};
char *optstr = NULL;
int rc;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "s", kwlist, &optstr)) {
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return NULL;
}
rc = mnt_fs_prepend_options(self->fs, optstr);
return rc ? UL_RaiseExc(-rc) : UL_IncRef(self);
}
#define Fs_match_fstype_HELP "match_fstype(pattern)\n\n" \
"pattern: filesystem name or comma delimited list(string) of names\n\n" \
"The pattern list of filesystem can be prefixed with a global\n" \
"\"no\" prefix to invert matching of the whole list. The \"no\" could\n" \
"also be used for individual items in the pattern list. So,\n" \
"\"nofoo,bar\" has the same meaning as \"nofoo,nobar\".\n" \
"\"bar\" : \"nofoo,bar\" -> False (global \"no\" prefix)\n" \
"\"bar\" : \"foo,bar\" -> True\n" \
"\"bar\" : \"foo,nobar\" -> False\n\n" \
"Returns True if type is matching, else False."
static PyObject *Fs_match_fstype(FsObject *self, PyObject *args, PyObject *kwds)
{
char *kwlist[] = {"pattern", NULL};
char *pattern = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "s", kwlist, &pattern)) {
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return NULL;
}
return PyBool_FromLong(mnt_fs_match_fstype(self->fs, pattern));
}
#define Fs_match_options_HELP "match_options(options)\n\n" \
"options: comma delimited list of options (and nooptions)\n" \
"Returns True if fs type is matching to options else False."
static PyObject *Fs_match_options(FsObject *self, PyObject *args, PyObject *kwds)
{
char *kwlist[] = {"options", NULL};
char *options = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "s", kwlist, &options)) {
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return NULL;
}
return PyBool_FromLong(mnt_fs_match_options(self->fs, options));
}
#define Fs_streq_srcpath_HELP "streq_srcpath(srcpath)\n\n" \
"Compares fs source path with path. The tailing slash is ignored.\n" \
"Returns True if fs source path equal to path, otherwise False."
static PyObject *Fs_streq_srcpath(FsObject *self, PyObject *args, PyObject *kwds)
{
char *kwlist[] = {"srcpath", NULL};
char *srcpath = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "s", kwlist, &srcpath)) {
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return NULL;
}
return PyBool_FromLong(mnt_fs_streq_srcpath(self->fs, srcpath));
}
#define Fs_streq_target_HELP "streq_target(target)\n\n" \
"Compares fs target path with path. The tailing slash is ignored.\n" \
"See also Fs.match_target().\n" \
"Returns True if fs target path equal to path, otherwise False."
static PyObject *Fs_streq_target(FsObject *self, PyObject *args, PyObject *kwds)
{
char *kwlist[] = {"target", NULL};
char *target = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "s", kwlist, &target)) {
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return NULL;
}
return PyBool_FromLong(mnt_fs_streq_target(self->fs, target));
}
#define Fs_copy_fs_HELP "copy_fs(dest=None)\n\n" \
"If dest is None, a new object is created, if any fs " \
"field is already set, then the field is NOT overwritten."
static PyObject *Fs_copy_fs(FsObject *self, PyObject *args, PyObject *kwds);
static PyMethodDef Fs_methods[] = {
{"get_propagation", (PyCFunction)Fs_get_propagation, METH_NOARGS, Fs_get_propagation_HELP},
{"mnt_fs_append_attributes", (PyCFunction)Fs_append_attributes, METH_VARARGS|METH_KEYWORDS, Fs_append_attributes_HELP},
{"append_options", (PyCFunction)Fs_append_options, METH_VARARGS|METH_KEYWORDS, Fs_append_options_HELP},
{"mnt_fs_prepend_attributes", (PyCFunction)Fs_prepend_attributes, METH_VARARGS|METH_KEYWORDS, Fs_prepend_attributes_HELP},
{"prepend_options", (PyCFunction)Fs_prepend_options, METH_VARARGS|METH_KEYWORDS, Fs_prepend_options_HELP},
{"copy_fs", (PyCFunction)Fs_copy_fs, METH_VARARGS|METH_KEYWORDS, Fs_copy_fs_HELP},
{"is_kernel", (PyCFunction)Fs_is_kernel, METH_NOARGS, Fs_is_kernel_HELP},
{"is_netfs", (PyCFunction)Fs_is_netfs, METH_NOARGS, Fs_is_netfs_HELP},
{"is_pseudofs", (PyCFunction)Fs_is_pseudofs, METH_NOARGS, Fs_is_pseudofs_HELP},
{"is_swaparea", (PyCFunction)Fs_is_swaparea, METH_NOARGS, Fs_is_swaparea_HELP},
{"match_fstype", (PyCFunction)Fs_match_fstype, METH_VARARGS|METH_KEYWORDS, Fs_match_fstype_HELP},
{"match_options", (PyCFunction)Fs_match_options, METH_VARARGS|METH_KEYWORDS, Fs_match_options_HELP},
{"streq_srcpath", (PyCFunction)Fs_streq_srcpath, METH_VARARGS|METH_KEYWORDS, Fs_streq_srcpath_HELP},
{"streq_target", (PyCFunction)Fs_streq_target, METH_VARARGS|METH_KEYWORDS, Fs_streq_target_HELP},
{"print_debug", (PyCFunction)Fs_print_debug, METH_NOARGS, Fs_print_debug_HELP},
{NULL}
};
static void Fs_destructor(FsObject *self)
{
DBG(FS, pymnt_debug_h(self->fs, "destructor py-obj: %p, py-refcnt=%d",
self, (int) ((PyObject *) self)->ob_refcnt));
mnt_unref_fs(self->fs);
PyFree(self);
}
static PyObject *Fs_new(PyTypeObject *type, PyObject *args __attribute__((unused)),
PyObject *kwds __attribute__((unused)))
{
FsObject *self = (FsObject*)type->tp_alloc(type, 0);
if (self) {
self->fs = NULL;
DBG(FS, pymnt_debug_h(self, "new"));
}
return (PyObject *) self;
}
static int Fs_init(FsObject *self, PyObject *args, PyObject *kwds)
{
char *source = NULL, *root = NULL, *target = NULL;
char *fstype = NULL, *options = NULL, *attributes =NULL;
int freq = 0; int passno = 0;
int rc = 0;
char *kwlist[] = {
"source", "root", "target",
"fstype", "options", "attributes",
"freq", "passno", NULL
};
if (!PyArg_ParseTupleAndKeywords(args, kwds, "|ssssssii", kwlist,
&source, &root, &target, &fstype, &options,
&attributes, &freq, &passno)) {
PyErr_SetString(PyExc_TypeError, "Invalid type");
return -1;
}
DBG(FS, pymnt_debug_h(self, "init"));
if (self->fs)
mnt_unref_fs(self->fs);
self->fs = mnt_new_fs(); /* new FS with refcount=1 */
if (source && (rc = mnt_fs_set_source(self->fs, source))) {
PyErr_SetString(PyExc_MemoryError, MEMORY_ERR);
return rc;
}
if (root && (rc = mnt_fs_set_root(self->fs, root))) {
PyErr_SetString(PyExc_MemoryError, MEMORY_ERR);
return rc;
}
if (target && (rc = mnt_fs_set_target(self->fs, target))) {
PyErr_SetString(PyExc_MemoryError, MEMORY_ERR);
return rc;
}
if (fstype && (rc = mnt_fs_set_fstype(self->fs, fstype))) {
PyErr_SetString(PyExc_MemoryError, MEMORY_ERR);
return rc;
}
if (options && (rc = mnt_fs_set_options(self->fs, options))) {
PyErr_SetString(PyExc_MemoryError, MEMORY_ERR);
return rc;
}
if (attributes && (rc = mnt_fs_set_attributes(self->fs, attributes))) {
PyErr_SetString(PyExc_MemoryError, MEMORY_ERR);
return rc;
}
mnt_fs_set_freq(self->fs, freq);
mnt_fs_set_passno(self->fs, passno);
mnt_fs_set_userdata(self->fs, self); /* store a pointer to self, convenient when resetting the table */
return 0;
}
/*
* missing:
* attribute
* option
*/
static PyGetSetDef Fs_getseters[] = {
{"id", (getter)Fs_get_id, NULL, "mountinfo[1]: ID", NULL},
{"parent", (getter)Fs_get_parent_id, NULL, "mountinfo[2]: parent", NULL},
{"devno", (getter)Fs_get_devno, NULL, "mountinfo[3]: st_dev", NULL},
{"comment", (getter)Fs_get_comment, (setter)Fs_set_comment, "fstab entry comment", NULL},
{"source", (getter)Fs_get_source, (setter)Fs_set_source, "fstab[1], mountinfo[10], swaps[1]: source dev, file, dir or TAG", NULL},
{"srcpath", (getter)Fs_get_srcpath, NULL, "mount source path or NULL in case of error or when the path is not defined.", NULL},
{"root", (getter)Fs_get_root, (setter)Fs_set_root, "mountinfo[4]: root of the mount within the FS", NULL},
{"target", (getter)Fs_get_target, (setter)Fs_set_target, "mountinfo[5], fstab[2]: mountpoint", NULL},
{"fstype", (getter)Fs_get_fstype, (setter)Fs_set_fstype, "mountinfo[9], fstab[3]: filesystem type", NULL},
{"options", (getter)Fs_get_options, (setter)Fs_set_options, "fstab[4]: merged options", NULL},
{"vfs_options", (getter)Fs_get_vfs_options, NULL, "mountinfo[6]: fs-independent (VFS) options", NULL},
{"opt_fields", (getter)Fs_get_optional_fields, NULL, "mountinfo[7]: optional fields", NULL},
{"fs_options", (getter)Fs_get_fs_options, NULL, "mountinfo[11]: fs-dependent options", NULL},
{"usr_options", (getter)Fs_get_user_options, NULL, "userspace mount options", NULL},
{"attributes", (getter)Fs_get_attributes, (setter)Fs_set_attributes, "mount attributes", NULL},
{"freq", (getter)Fs_get_freq, (setter)Fs_set_freq, "fstab[5]: dump frequency in days", NULL},
{"passno", (getter)Fs_get_passno, (setter)Fs_set_passno, "fstab[6]: pass number on parallel fsck", NULL},
{"swaptype", (getter)Fs_get_swaptype, NULL, "swaps[2]: device type", NULL},
{"size", (getter)Fs_get_size, NULL, "saps[3]: swaparea size", NULL},
{"usedsize", (getter)Fs_get_usedsize, NULL, "swaps[4]: used size", NULL},
{"priority", (getter)Fs_get_priority, NULL, "swaps[5]: swap priority", NULL},
{"tag", (getter)Fs_get_tag, NULL, "(Name, Value)", NULL},
{"tid", (getter)Fs_get_tid, NULL, "/proc/<tid>/mountinfo, otherwise zero", NULL},
{NULL}
};
static PyObject *Fs_repr(FsObject *self)
{
const char *src = mnt_fs_get_source(self->fs),
*tgt = mnt_fs_get_target(self->fs),
*type = mnt_fs_get_fstype(self->fs);
return PyUnicode_FromFormat(
"<libmount.Fs object at %p, "
"source=%s, target=%s, fstype=%s>",
self,
src ? src : "None",
tgt ? tgt : "None",
type ? type : "None");
}
PyObject *PyObjectResultFs(struct libmnt_fs *fs)
{
FsObject *result;
if (!fs) {
PyErr_SetString(LibmountError, "internal exception");
return NULL;
}
result = mnt_fs_get_userdata(fs);
if (result) {
Py_INCREF(result);
DBG(FS, pymnt_debug_h(fs, "result py-obj %p: already exists, py-refcnt=%d",
result, (int) ((PyObject *) result)->ob_refcnt));
return (PyObject *) result;
}
/* Creating an encapsulating object: increment the refcount, so that code
* such as tab.next_fs() doesn't call the destructor, which would free
* our fs struct as well
*/
result = PyObject_New(FsObject, &FsType);
if (!result) {
UL_RaiseExc(ENOMEM);
return NULL;
}
Py_INCREF(result);
mnt_ref_fs(fs);
DBG(FS, pymnt_debug_h(fs, "result py-obj %p new, py-refcnt=%d",
result, (int) ((PyObject *) result)->ob_refcnt));
result->fs = fs;
mnt_fs_set_userdata(fs, result);
return (PyObject *) result;
}
static PyObject *Fs_copy_fs(FsObject *self, PyObject *args, PyObject *kwds)
{
PyObject *dest = NULL;
char *kwlist[] = {"dest", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O", kwlist, &dest)) {
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return NULL;
}
if (PyObject_TypeCheck(dest, &FsType)) { /* existing object passed as argument */
if (!mnt_copy_fs(((FsObject *)dest)->fs, self->fs))
return NULL;
DBG(FS, pymnt_debug_h(dest, "copy data"));
return (PyObject *)dest;
} else if (dest == Py_None) { /* create new object */
FsObject *result = PyObject_New(FsObject, &FsType);
DBG(FS, pymnt_debug_h(result, "new copy"));
result->fs = mnt_copy_fs(NULL, self->fs);
mnt_fs_set_userdata(result->fs, result); /* keep a pointer to encapsulating object */
return (PyObject *)result;
}
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return NULL;
}
PyTypeObject FsType = {
PyVarObject_HEAD_INIT(NULL, 0)
"libmount.Fs", /*tp_name*/
sizeof(FsObject), /*tp_basicsize*/
0, /*tp_itemsize*/
(destructor)Fs_destructor, /*tp_dealloc*/
NULL, /*tp_print*/
NULL, /*tp_getattr*/
NULL, /*tp_setattr*/
NULL, /*tp_compare*/
(reprfunc)Fs_repr, /*tp_repr*/
NULL, /*tp_as_number*/
NULL, /*tp_as_sequence*/
NULL, /*tp_as_mapping*/
NULL, /*tp_hash */
NULL, /*tp_call*/
NULL, /*tp_str*/
NULL, /*tp_getattro*/
NULL, /*tp_setattro*/
NULL, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
Fs_HELP, /* tp_doc */
NULL, /* tp_traverse */
NULL, /* tp_clear */
NULL, /* tp_richcompare */
0, /* tp_weaklistoffset */
NULL, /* tp_iter */
NULL, /* tp_iternext */
Fs_methods, /* tp_methods */
Fs_members, /* tp_members */
Fs_getseters, /* tp_getset */
NULL, /* tp_base */
NULL, /* tp_dict */
NULL, /* tp_descr_get */
NULL, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)Fs_init, /* tp_init */
NULL, /* tp_alloc */
Fs_new, /* tp_new */
};
void FS_AddModuleObject(PyObject *mod)
{
if (PyType_Ready(&FsType) < 0)
return;
DBG(FS, pymnt_debug("add to module"));
Py_INCREF(&FsType);
PyModule_AddObject(mod, "Fs", (PyObject *)&FsType);
}