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Add pylkid

fixes2
Vadim vtroshchinskiy 2024-11-12 14:17:06 +00:00
parent abced1feef
commit 4f8991cfe0
28 changed files with 4191 additions and 0 deletions
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packages/pyblkid/opengnsys-pyblkid-0.3/.github/workflows/ci.yml vendored 100644
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name: CI
on:
push:
branches: [ main ]
pull_request:
branches: [ main ]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Install dependencies
run: |
sudo apt-get -qq update
sudo apt-get -y -qq install python3-pkgconfig
sudo apt-get -y -qq install libblkid-dev libblkid1 python3-dev
- name: Run tests
run: sudo make test

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name: "CodeQL"
on:
push:
branches: [ "main" ]
pull_request:
branches: [ "main" ]
jobs:
analyze:
name: Analyze
runs-on: ubuntu-22.04
permissions:
actions: read
contents: read
security-events: write
strategy:
fail-fast: false
matrix:
language: [ 'cpp', 'python' ]
steps:
- name: Checkout repository
uses: actions/checkout@v4
# Initializes the CodeQL tools for scanning.
- name: Initialize CodeQL
uses: github/codeql-action/init@v2
with:
languages: ${{ matrix.language }}
- name: Install build dependencies
run: |
sudo apt-get -qq update
sudo apt-get -y -qq install python3-pkgconfig
sudo apt-get -y -qq install libblkid-dev libblkid1 python3-dev
- name: Build
run: |
make
- name: Perform CodeQL Analysis
uses: github/codeql-action/analyze@v2
with:
category: "/language:${{matrix.language}}"

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env/
build/
tests/__pycache__/*
tests/*.img

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That's all there is to it!

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include LICENSE README.md
include MANIFEST.in
include Makefile
recursive-include src *.h
recursive-include tests *.py

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# Copyright (C) 2020 Red Hat, Inc.
#
# This library 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 2.1 of the License, or (at your option) any later version.
#
# This library 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 library; if not, see <http://www.gnu.org/licenses/>.
PYTHON ?= python3
default: all
all:
@$(PYTHON) setup.py build
test: all
@env PYTHONPATH=$$(find $$(pwd) -name "*.so" | head -n 1 | xargs dirname):src \
$(PYTHON) -m unittest discover -v
run-ipython: all
@env PYTHONPATH=$$(find $$(pwd) -name "*.so" | head -n 1 | xargs dirname):src i$(PYTHON)
run-root-ipython: all
@sudo env PYTHONPATH=$$(find $$(pwd) -name "*.so" | head -n 1 | xargs dirname):src i$(PYTHON)
clean:
-rm -r build

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# pylibblkid
[![PyPI version](https://badge.fury.io/py/pylibblkid.svg)](https://badge.fury.io/py/pylibblkid)
Python bindings for libblkid library.
## Usage examples
### Probing a device
```python
import blkid
pr = blkid.Probe()
pr.set_device("/dev/sda1")
pr.enable_superblocks(True)
pr.set_superblocks_flags(blkid.SUBLKS_TYPE | blkid.SUBLKS_USAGE | blkid.SUBLKS_UUID)
pr.do_safeprobe()
# print device properties as a dictionary
print(dict(pr))
```
### Searching for device with specified label
```python
import blkid
cache = blkid.Cache()
cache.probe_all()
dev = cache.find_device("LABEL", "mylabel")
# if found print found device and its properties
if dev:
print(dev.devname)
print(dev.tags)
```

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[build-system]
requires = ["setuptools", "pkgconfig"]
build-backend = "setuptools.build_meta"

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# Copyright (C) 2020 Red Hat, Inc.
#
# This library 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 2.1 of the License, or (at your option) any later version.
#
# This library 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 library; if not, see <http://www.gnu.org/licenses/>.
import sys
import pkgconfig
from setuptools import Extension, setup
pkgs = pkgconfig.list_all()
if "blkid" not in pkgs:
print("Please install libblkid-dev or libblkid-devel")
exit(1)
vers = sys.version_info
if f"python-{vers.major}.{vers.minor}" not in pkgs:
print("Please install python3-dev or python3-devel")
exit(1)
# define macros for blkid releases
macros = []
blkid_releases = ['2.24', '2.25', '2.30', '2.31', '2.36', '2.37', '2.39', '2.40']
for blkid_ver in blkid_releases:
if pkgconfig.installed("blkid", f">= {blkid_ver}"):
ver_list = blkid_ver.split('.')
full_release = '_'.join(ver_list)
macros.append((f"HAVE_BLKID_{full_release}", "1"))
if len(ver_list) > 2:
major_minor = '_'.join(ver_list[:2])
macros.append((f"HAVE_BLKID_{major_minor}", "1"))
with open("README.md", "r") as f:
long_description = f.read()
def main():
setup(name="pylibblkid",
version="0.3",
description="Python interface for the libblkid C library",
long_description=long_description,
long_description_content_type="text/markdown",
author="Vojtech Trefny",
author_email="vtrefny@redhat.com",
url="http://github.com/vojtechtrefny/pyblkid",
ext_modules=[Extension("blkid",
sources=["src/pyblkid.c",
"src/topology.c",
"src/partitions.c",
"src/cache.c",
"src/probe.c",],
include_dirs=["/usr/include"],
libraries=["blkid"],
library_dirs=["/usr/lib"],
define_macros=macros,
extra_compile_args=["-std=c99", "-Wall", "-Wextra", "-Werror"])],
classifiers=["Development Status :: 4 - Beta",
"Intended Audience :: Developers",
"License :: OSI Approved :: GNU Lesser General Public License v2 or later (LGPLv2+)",
"Programming Language :: C",
"Programming Language :: Python :: 3",
"Operating System :: POSIX :: Linux"])
if __name__ == "__main__":
main()

336
packages/pyblkid/opengnsys-pyblkid-0.3/src/cache.c vendored 100644
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/*
* Copyright (C) 2020 Red Hat, Inc.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "cache.h"
#include <blkid/blkid.h>
#include <stdbool.h>
#define UNUSED __attribute__((unused))
PyObject *Cache_new (PyTypeObject *type, PyObject *args UNUSED, PyObject *kwargs UNUSED) {
CacheObject *self = (CacheObject*) type->tp_alloc (type, 0);
if (self)
self->cache = NULL;
return (PyObject *) self;
}
int Cache_init (CacheObject *self UNUSED, PyObject *args, PyObject *kwargs) {
char *filename = NULL;
char *kwlist[] = { "filename", NULL };
int ret = 0;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "|s", kwlist, &filename)) {
return -1;
}
ret = blkid_get_cache (&(self->cache), filename);
if (ret < 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to get cache");
return -1;
}
return 0;
}
void Cache_dealloc (CacheObject *self) {
Py_TYPE (self)->tp_free ((PyObject *) self);
}
PyDoc_STRVAR(Cache_probe_all__doc__,
"probe_all (removable=False, new_only=False)\n\n"
"Probes all block devices.\n\n"
"With removable=True also adds removable block devices to cache. Don't forget that "
"removable devices could be pretty slow. It's very bad idea to call this function by default."
"With new_only=True this will scan only newly connected devices.");
static PyObject *Cache_probe_all (CacheObject *self, PyObject *args, PyObject *kwargs) {
bool removable = false;
bool new = false;
char *kwlist[] = { "removable", "new_only", NULL };
int ret = 0;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "|pp", kwlist, &removable, &new)) {
return NULL;
}
if (new) {
ret = blkid_probe_all_new (self->cache);
if (ret < 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to probe new devices");
return NULL;
}
} else {
ret = blkid_probe_all (self->cache);
if (ret < 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to probe block devices");
return NULL;
}
if (removable) {
ret = blkid_probe_all_removable (self->cache);
if (ret < 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to probe removable devices");
return NULL;
}
}
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Cache_gc__doc__,
"gc\n\n"
"Removes garbage (non-existing devices) from the cache.");
static PyObject *Cache_gc (CacheObject *self, PyObject *Py_UNUSED (ignored)) {
blkid_gc_cache (self->cache);
Py_RETURN_NONE;
}
PyDoc_STRVAR(Cache_get_device__doc__,
"get_device (name)\n\n"
"Get device from cache.\n\n");
static PyObject *Cache_get_device (CacheObject *self, PyObject *args, PyObject *kwargs) {
const char *name = NULL;
char *kwlist[] = { "name", NULL };
blkid_dev device = NULL;
DeviceObject *dev_obj = NULL;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "s", kwlist, &name))
return NULL;
device = blkid_get_dev (self->cache, name, BLKID_DEV_FIND);
if (device == NULL)
Py_RETURN_NONE;
dev_obj = PyObject_New (DeviceObject, &DeviceType);
if (!dev_obj) {
PyErr_SetString (PyExc_MemoryError, "Failed to create a new Device object");
return NULL;
}
dev_obj->device = device;
dev_obj->cache = self->cache;
return (PyObject *) dev_obj;
}
PyDoc_STRVAR(Cache_find_device__doc__,
"find_device (tag, value)\n\n"
"Returns a device which matches a particular tag/value pair.\n"
" If there is more than one device that matches the search specification, "
"it returns the one with the highest priority\n\n");
static PyObject *Cache_find_device (CacheObject *self, PyObject *args, PyObject *kwargs) {
const char *tag = NULL;
const char *value = NULL;
char *kwlist[] = { "tag", "value", NULL };
blkid_dev device = NULL;
DeviceObject *dev_obj = NULL;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "ss", kwlist, &tag, &value))
return NULL;
device = blkid_find_dev_with_tag (self->cache, tag, value);
if (device == NULL)
Py_RETURN_NONE;
dev_obj = PyObject_New (DeviceObject, &DeviceType);
if (!dev_obj) {
PyErr_SetString (PyExc_MemoryError, "Failed to create a new Device object");
return NULL;
}
dev_obj->device = device;
dev_obj->cache = self->cache;
return (PyObject *) dev_obj;
}
static PyMethodDef Cache_methods[] = {
{"probe_all", (PyCFunction)(void(*)(void)) Cache_probe_all, METH_VARARGS|METH_KEYWORDS, Cache_probe_all__doc__},
{"gc", (PyCFunction) Cache_gc, METH_NOARGS, Cache_gc__doc__},
{"get_device", (PyCFunction)(void(*)(void)) Cache_get_device, METH_VARARGS|METH_KEYWORDS, Cache_get_device__doc__},
{"find_device", (PyCFunction)(void(*)(void)) Cache_find_device, METH_VARARGS|METH_KEYWORDS, Cache_find_device__doc__},
{NULL, NULL, 0, NULL},
};
static PyObject *Cache_get_devices (CacheObject *self, PyObject *Py_UNUSED (ignored)) {
blkid_dev_iterate iter;
blkid_dev device = NULL;
DeviceObject *dev_obj = NULL;
PyObject *list = NULL;
list = PyList_New (0);
if (!list) {
PyErr_NoMemory ();
return NULL;
}
iter = blkid_dev_iterate_begin (self->cache);
while (blkid_dev_next (iter, &device) == 0) {
dev_obj = PyObject_New (DeviceObject, &DeviceType);
if (!dev_obj) {
PyErr_NoMemory ();
return NULL;
}
dev_obj->device = device;
dev_obj->cache = self->cache;
PyList_Append (list, (PyObject *) dev_obj);
Py_DECREF (dev_obj);
}
blkid_dev_iterate_end(iter);
return (PyObject *) list;
}
static PyGetSetDef Cache_getseters[] = {
{"devices", (getter) Cache_get_devices, NULL, "returns all devices in the cache", NULL},
{NULL, NULL, NULL, NULL, NULL}
};
PyTypeObject CacheType = {
PyVarObject_HEAD_INIT (NULL, 0)
.tp_name = "blkid.Cache",
.tp_basicsize = sizeof (CacheObject),
.tp_itemsize = 0,
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_new = Cache_new,
.tp_dealloc = (destructor) Cache_dealloc,
.tp_init = (initproc) Cache_init,
.tp_methods = Cache_methods,
.tp_getset = Cache_getseters,
};
/*********************** DEVICE ***********************/
PyObject *Device_new (PyTypeObject *type, PyObject *args UNUSED, PyObject *kwargs UNUSED) {
DeviceObject *self = (DeviceObject*) type->tp_alloc (type, 0);
if (self) {
self->device = NULL;
self->cache = NULL;
}
return (PyObject *) self;
}
int Device_init (DeviceObject *self UNUSED, PyObject *args UNUSED, PyObject *kwargs UNUSED) {
return 0;
}
void Device_dealloc (DeviceObject *self) {
Py_TYPE (self)->tp_free ((PyObject *) self);
}
PyDoc_STRVAR(Device_verify__doc__,
"verify\n\n"
"Verify that the data in device is consistent with what is on the actual"
"block device. Normally this will be called when finding items in the cache, "
"but for long running processes is also desirable to revalidate an item before use.");
static PyObject *Device_verify (DeviceObject *self, PyObject *Py_UNUSED (ignored)) {
self->device = blkid_verify (self->cache, self->device);
Py_RETURN_NONE;
}
static PyMethodDef Device_methods[] = {
{"verify", (PyCFunction) Device_verify, METH_NOARGS, Device_verify__doc__},
{NULL, NULL, 0, NULL},
};
static PyObject *Device_get_devname (DeviceObject *self, PyObject *Py_UNUSED (ignored)) {
const char *name = blkid_dev_devname (self->device);
if (!name)
Py_RETURN_NONE;
return PyUnicode_FromString (name);
}
static PyObject *Device_get_tags (DeviceObject *self, PyObject *Py_UNUSED (ignored)) {
blkid_tag_iterate iter;
const char *type = NULL;
const char *value = NULL;
PyObject *dict = NULL;
PyObject *py_value = NULL;
dict = PyDict_New ();
if (!dict) {
PyErr_NoMemory ();
return NULL;
}
iter = blkid_tag_iterate_begin (self->device);
while (blkid_tag_next (iter, &type, &value) == 0) {
py_value = PyUnicode_FromString (value);
if (py_value == NULL) {
Py_INCREF (Py_None);
py_value = Py_None;
}
PyDict_SetItemString (dict, type, py_value);
Py_DECREF (py_value);
}
blkid_tag_iterate_end(iter);
return (PyObject *) dict;
}
static PyObject *Device_str (PyObject *self) {
char *str = NULL;
int ret = 0;
PyObject *py_str = NULL;
intptr_t id = (intptr_t) self;
PyObject *py_name = PyObject_GetAttrString (self, "devname");
ret = asprintf (&str, "blkid.Device instance (0x%" PRIxPTR "): %s", id, PyUnicode_AsUTF8 (py_name));
Py_DECREF (py_name);
if (ret < 0)
Py_RETURN_NONE;
py_str = PyUnicode_FromString (str);
free (str);
return py_str;
}
static PyGetSetDef Device_getseters[] = {
{"devname", (getter) Device_get_devname, NULL, "returns the name previously used for Cache.get_device.", NULL},
{"tags", (getter) Device_get_tags, NULL, "returns all tags for this device.", NULL},
{NULL, NULL, NULL, NULL, NULL}
};
PyTypeObject DeviceType = {
PyVarObject_HEAD_INIT (NULL, 0)
.tp_name = "blkid.Device",
.tp_basicsize = sizeof (DeviceObject),
.tp_itemsize = 0,
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_new = Device_new,
.tp_dealloc = (destructor) Device_dealloc,
.tp_init = (initproc) Device_init,
.tp_methods = Device_methods,
.tp_getset = Device_getseters,
.tp_str = Device_str,
};

44
packages/pyblkid/opengnsys-pyblkid-0.3/src/cache.h vendored 100644
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@ -0,0 +1,44 @@
/*
* Copyright (C) 2020 Red Hat, Inc.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef CACHE_H
#define CACHE_H
#include <Python.h>
#include <blkid/blkid.h>
typedef struct {
PyObject_HEAD
blkid_cache cache;
} CacheObject;
extern PyTypeObject CacheType;
PyObject *Cache_new (PyTypeObject *type, PyObject *args, PyObject *kwargs);
int Cache_init (CacheObject *self, PyObject *args, PyObject *kwargs);
void Cache_dealloc (CacheObject *self);
typedef struct {
PyObject_HEAD
blkid_dev device;
blkid_cache cache;
} DeviceObject;
extern PyTypeObject DeviceType;
#endif /* CACHE_H */

534
packages/pyblkid/opengnsys-pyblkid-0.3/src/partitions.c vendored 100644
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@ -0,0 +1,534 @@
/*
* Copyright (C) 2020 Red Hat, Inc.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "partitions.h"
#include <blkid/blkid.h>
#define UNUSED __attribute__((unused))
/*********************** PARTLIST ***********************/
PyObject *Partlist_new (PyTypeObject *type, PyObject *args UNUSED, PyObject *kwargs UNUSED) {
PartlistObject *self = (PartlistObject*) type->tp_alloc (type, 0);
if (self)
self->Parttable_object = NULL;
return (PyObject *) self;
}
int Partlist_init (PartlistObject *self UNUSED, PyObject *args UNUSED, PyObject *kwargs UNUSED) {
return 0;
}
void Partlist_dealloc (PartlistObject *self) {
if (self->Parttable_object)
Py_DECREF (self->Parttable_object);
Py_TYPE (self)->tp_free ((PyObject *) self);
}
PyObject *_Partlist_get_partlist_object (blkid_probe probe) {
PartlistObject *result = NULL;
blkid_partlist partlist = NULL;
if (!probe) {
PyErr_SetString (PyExc_RuntimeError, "internal error");
return NULL;
}
partlist = blkid_probe_get_partitions (probe);
if (!partlist) {
PyErr_SetString (PyExc_RuntimeError, "Failed to get partitions");
return NULL;
}
result = PyObject_New (PartlistObject, &PartlistType);
if (!result) {
PyErr_SetString (PyExc_MemoryError, "Failed to create a new Partlist object");
return NULL;
}
Py_INCREF (result);
result->partlist = partlist;
result->Parttable_object = NULL;
return (PyObject *) result;
}
PyDoc_STRVAR(Partlist_get_partition__doc__,
"get_partition (number)\n\n"
"Get partition by number.\n\n"
"It's possible that the list of partitions is *empty*, but there is a valid partition table on the disk.\n"
"This happen when on-disk details about partitions are unknown or the partition table is empty.");
static PyObject *Partlist_get_partition (PartlistObject *self, PyObject *args, PyObject *kwargs) {
char *kwlist[] = { "number", NULL };
int partnum = 0;
int numof = 0;
blkid_partition blkid_part = NULL;
PartitionObject *result = NULL;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "i", kwlist, &partnum)) {
return NULL;
}
numof = blkid_partlist_numof_partitions (self->partlist);
if (numof < 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to get number of partitions");
return NULL;
}
if (partnum > numof) {
PyErr_Format (PyExc_RuntimeError, "Cannot get partition %d, partition table has only %d partitions", partnum, numof);
return NULL;
}
blkid_part = blkid_partlist_get_partition (self->partlist, partnum);
if (!blkid_part) {
PyErr_Format (PyExc_RuntimeError, "Failed to get partition %d", partnum);
return NULL;
}
result = PyObject_New (PartitionObject, &PartitionType);
if (!result) {
PyErr_SetString (PyExc_MemoryError, "Failed to create a new Partition object");
return NULL;
}
result->number = partnum;
result->partition = blkid_part;
result->Parttable_object = NULL;
return (PyObject *) result;
}
#ifdef HAVE_BLKID_2_25
PyDoc_STRVAR(Partlist_get_partition_by_partno__doc__,
"get_partition_by_partno(number)\n\n"
"Get partition by partition number.\n\n"
"This does not assume any order of partitions and correctly handles \"out of order\" "
"partition tables. partition N is located after partition N+1 on the disk.");
static PyObject *Partlist_get_partition_by_partno (PartlistObject *self, PyObject *args, PyObject *kwargs) {
char *kwlist[] = { "number", NULL };
int partno = 0;
blkid_partition blkid_part = NULL;
PartitionObject *result = NULL;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "i", kwlist, &partno)) {
return NULL;
}
blkid_part = blkid_partlist_get_partition_by_partno (self->partlist, partno);
if (!blkid_part) {
PyErr_Format (PyExc_RuntimeError, "Failed to get partition %d", partno);
return NULL;
}
result = PyObject_New (PartitionObject, &PartitionType);
if (!result) {
PyErr_NoMemory ();
return NULL;
}
result->number = partno;
result->partition = blkid_part;
result->Parttable_object = NULL;
return (PyObject *) result;
}
#endif
static int _Py_Dev_Converter (PyObject *obj, void *p) {
#ifdef HAVE_LONG_LONG
*((dev_t *)p) = PyLong_AsUnsignedLongLong (obj);
#else
*((dev_t *)p) = PyLong_AsUnsignedLong (obj);
#endif
if (PyErr_Occurred ())
return 0;
return 1;
}
#ifdef HAVE_LONG_LONG
#define _PyLong_FromDev PyLong_FromLongLong
#else
#define _PyLong_FromDev PyLong_FromLong
#endif
PyDoc_STRVAR(Partlist_devno_to_partition__doc__,
"devno_to_partition (devno)\n\n"
"Get partition by devno.\n");
static PyObject *Partlist_devno_to_partition (PartlistObject *self, PyObject *args, PyObject *kwargs) {
dev_t devno = 0;
char *kwlist[] = { "devno", NULL };
blkid_partition blkid_part = NULL;
PartitionObject *result = NULL;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "O&:devno_to_devname", kwlist, _Py_Dev_Converter, &devno))
return NULL;
blkid_part = blkid_partlist_devno_to_partition (self->partlist, devno);
if (!blkid_part) {
PyErr_Format (PyExc_RuntimeError, "Failed to get partition %zu", devno);
return NULL;
}
result = PyObject_New (PartitionObject, &PartitionType);
if (!result) {
PyErr_NoMemory ();
return NULL;
}
result->number = blkid_partition_get_partno (blkid_part);
result->partition = blkid_part;
result->Parttable_object = NULL;
return (PyObject *) result;
}
static PyMethodDef Partlist_methods[] = {
{"get_partition", (PyCFunction)(void(*)(void)) Partlist_get_partition, METH_VARARGS|METH_KEYWORDS, Partlist_get_partition__doc__},
#ifdef HAVE_BLKID_2_25
{"get_partition_by_partno", (PyCFunction)(void(*)(void)) Partlist_get_partition_by_partno, METH_VARARGS|METH_KEYWORDS, Partlist_get_partition_by_partno__doc__},
#endif
{"devno_to_partition", (PyCFunction)(void(*)(void)) Partlist_devno_to_partition, METH_VARARGS|METH_KEYWORDS, Partlist_devno_to_partition__doc__},
{NULL, NULL, 0, NULL},
};
static PyObject *Partlist_get_table (PartlistObject *self, PyObject *Py_UNUSED (ignored)) {
if (self->Parttable_object) {
Py_INCREF (self->Parttable_object);
return self->Parttable_object;
}
self->Parttable_object = _Parttable_get_parttable_object (self->partlist);
return self->Parttable_object;
}
static PyObject *Partlist_get_numof_partitions (PartlistObject *self, PyObject *Py_UNUSED (ignored)) {
int ret = 0;
ret = blkid_partlist_numof_partitions (self->partlist);
if (ret < 0) {
PyErr_SetString (PyExc_MemoryError, "Failed to get number of partitions");
return NULL;
}
return PyLong_FromLong (ret);
}
static PyGetSetDef Partlist_getseters[] = {
{"table", (getter) Partlist_get_table, NULL, "binary interface for partition table on the device", NULL},
{"numof_partitions", (getter) Partlist_get_numof_partitions, NULL, "number of partitions in the list", NULL},
{NULL, NULL, NULL, NULL, NULL}
};
PyTypeObject PartlistType = {
PyVarObject_HEAD_INIT (NULL, 0)
.tp_name = "blkid.Partlist",
.tp_basicsize = sizeof (PartlistObject),
.tp_itemsize = 0,
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_new = Partlist_new,
.tp_dealloc = (destructor) Partlist_dealloc,
.tp_init = (initproc) Partlist_init,
.tp_methods = Partlist_methods,
.tp_getset = Partlist_getseters,
};
/*********************** PARTTABLE ***********************/
PyObject *Parttable_new (PyTypeObject *type, PyObject *args UNUSED, PyObject *kwargs UNUSED) {
ParttableObject *self = (ParttableObject*) type->tp_alloc (type, 0);
return (PyObject *) self;
}
int Parttable_init (ParttableObject *self UNUSED, PyObject *args UNUSED, PyObject *kwargs UNUSED) {
return 0;
}
void Parttable_dealloc (ParttableObject *self) {
Py_TYPE (self)->tp_free ((PyObject *) self);
}
PyObject *_Parttable_get_parttable_object (blkid_partlist partlist) {
ParttableObject *result = NULL;
blkid_parttable table = NULL;
if (!partlist) {
PyErr_SetString(PyExc_RuntimeError, "internal error");
return NULL;
}
table = blkid_partlist_get_table (partlist);
if (!table) {
PyErr_SetString (PyExc_RuntimeError, "Failed to get partitions");
return NULL;
}
result = PyObject_New (ParttableObject, &ParttableType);
if (!result) {
PyErr_SetString (PyExc_MemoryError, "Failed to create a new Parttable object");
return NULL;
}
Py_INCREF (result);
result->table = table;
return (PyObject *) result;
}
PyDoc_STRVAR(Parttable_get_parent__doc__,
"get_parent ()\n\n"
"Parent for nested partition tables.");
static PyObject *Parttable_get_parent (ParttableObject *self, PyObject *Py_UNUSED (ignored)) {
blkid_partition blkid_part = NULL;
PartitionObject *result = NULL;
blkid_part = blkid_parttable_get_parent (self->table);
if (!blkid_part)
Py_RETURN_NONE;
result = PyObject_New (PartitionObject, &PartitionType);
if (!result) {
PyErr_SetString (PyExc_MemoryError, "Failed to create a new Partition object");
return NULL;
}
result->number = 0;
result->partition = blkid_part;
return (PyObject *) result;
}
static PyMethodDef Parttable_methods[] = {
{"get_parent", (PyCFunction)(void(*)(void)) Parttable_get_parent, METH_NOARGS, Parttable_get_parent__doc__},
{NULL, NULL, 0, NULL},
};
static PyObject *Parrtable_get_type (ParttableObject *self, PyObject *Py_UNUSED (ignored)) {
const char *pttype = blkid_parttable_get_type (self->table);
return PyUnicode_FromString (pttype);
}
static PyObject *Parrtable_get_id (ParttableObject *self, PyObject *Py_UNUSED (ignored)) {
const char *ptid = blkid_parttable_get_id (self->table);
return PyUnicode_FromString (ptid);
}
static PyObject *Parrtable_get_offset (ParttableObject *self, PyObject *Py_UNUSED (ignored)) {
blkid_loff_t offset = blkid_parttable_get_offset (self->table);
return PyLong_FromLongLong (offset);
}
static PyGetSetDef Parttable_getseters[] = {
{"type", (getter) Parrtable_get_type, NULL, "partition table type (type name, e.g. 'dos', 'gpt', ...)", NULL},
{"id", (getter) Parrtable_get_id, NULL, "GPT disk UUID or DOS disk ID (in hex format)", NULL},
{"offset", (getter) Parrtable_get_offset, NULL, "position (in bytes) of the partition table", NULL},
{NULL, NULL, NULL, NULL, NULL}
};
PyTypeObject ParttableType = {
PyVarObject_HEAD_INIT (NULL, 0)
.tp_name = "blkid.Parttable",
.tp_basicsize = sizeof (ParttableObject),
.tp_itemsize = 0,
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_new = Parttable_new,
.tp_dealloc = (destructor) Parttable_dealloc,
.tp_init = (initproc) Parttable_init,
.tp_methods = Parttable_methods,
.tp_getset = Parttable_getseters,
};
/*********************** PARTITION ***********************/
PyObject *Partition_new (PyTypeObject *type, PyObject *args UNUSED, PyObject *kwargs UNUSED) {
PartitionObject *self = (PartitionObject*) type->tp_alloc (type, 0);
if (self)
self->Parttable_object = NULL;
return (PyObject *) self;
}
int Partition_init (PartitionObject *self, PyObject *args, PyObject *kwargs) {
char *kwlist[] = { "number", NULL };
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "i", kwlist, &(self->number))) {
return -1;
}
self->partition = NULL;
return 0;
}
void Partition_dealloc (PartitionObject *self) {
if (self->Parttable_object)
Py_DECREF (self->Parttable_object);
Py_TYPE (self)->tp_free ((PyObject *) self);
}
static PyObject *Partition_get_type (PartitionObject *self, PyObject *Py_UNUSED (ignored)) {
int type = blkid_partition_get_type (self->partition);
return PyLong_FromLong (type);
}
static PyObject *Partition_get_type_string (PartitionObject *self, PyObject *Py_UNUSED (ignored)) {
const char *type = blkid_partition_get_type_string (self->partition);
return PyUnicode_FromString (type);
}
static PyObject *Partition_get_uuid (PartitionObject *self, PyObject *Py_UNUSED (ignored)) {
const char *uuid = blkid_partition_get_uuid (self->partition);
return PyUnicode_FromString (uuid);
}
static PyObject *Partition_get_is_extended (PartitionObject *self, PyObject *Py_UNUSED (ignored)) {
int extended = blkid_partition_is_extended (self->partition);
if (extended == 1)
Py_RETURN_TRUE;
else
Py_RETURN_FALSE;
}
static PyObject *Partition_get_is_logical (PartitionObject *self, PyObject *Py_UNUSED (ignored)) {
int logical = blkid_partition_is_logical (self->partition);
if (logical == 1)
Py_RETURN_TRUE;
else
Py_RETURN_FALSE;
}
static PyObject *Partition_get_is_primary (PartitionObject *self, PyObject *Py_UNUSED (ignored)) {
int primary = blkid_partition_is_primary (self->partition);
if (primary == 1)
Py_RETURN_TRUE;
else
Py_RETURN_FALSE;
}
static PyObject *Partition_get_name (PartitionObject *self, PyObject *Py_UNUSED (ignored)) {
const char *name = blkid_partition_get_name (self->partition);
return PyUnicode_FromString (name);
}
static PyObject *Partition_get_flags (PartitionObject *self, PyObject *Py_UNUSED (ignored)) {
unsigned long long flags = blkid_partition_get_flags (self->partition);
return PyLong_FromUnsignedLongLong (flags);
}
static PyObject *Partition_get_partno (PartitionObject *self, PyObject *Py_UNUSED (ignored)) {
int partno = blkid_partition_get_partno (self->partition);
return PyLong_FromLong (partno);
}
static PyObject *Partition_get_size (PartitionObject *self, PyObject *Py_UNUSED (ignored)) {
blkid_loff_t size = blkid_partition_get_size (self->partition);
return PyLong_FromLongLong (size);
}
static PyObject *Partition_get_start (PartitionObject *self, PyObject *Py_UNUSED (ignored)) {
blkid_loff_t start = blkid_partition_get_start (self->partition);
return PyLong_FromLongLong (start);
}
PyObject *_Partition_get_parttable_object (blkid_partition partition) {
ParttableObject *result = NULL;
blkid_parttable table = NULL;
if (!partition) {
PyErr_SetString(PyExc_RuntimeError, "internal error");
return NULL;
}
table = blkid_partition_get_table (partition);
if (!table) {
PyErr_SetString (PyExc_RuntimeError, "Failed to get partition table");
return NULL;
}
result = PyObject_New (ParttableObject, &ParttableType);
if (!result) {
PyErr_SetString (PyExc_MemoryError, "Failed to create a new Parttable object");
return NULL;
}
Py_INCREF (result);
result->table = table;
return (PyObject *) result;
}
static PyObject *Partition_get_table (PartitionObject *self, PyObject *Py_UNUSED (ignored)) {
if (self->Parttable_object) {
Py_INCREF (self->Parttable_object);
return self->Parttable_object;
}
self->Parttable_object = _Partition_get_parttable_object (self->partition);
return self->Parttable_object;
}
static PyGetSetDef Partition_getseters[] = {
{"type", (getter) Partition_get_type, NULL, "partition type", NULL},
{"type_string", (getter) Partition_get_type_string, NULL, "partition type string, note the type string is supported by a small subset of partition tables (e.g Mac and EFI GPT)", NULL},
{"uuid", (getter) Partition_get_uuid, NULL, "partition UUID string if supported by PT (e.g. GPT)", NULL},
{"is_extended", (getter) Partition_get_is_extended, NULL, "returns whether the partition is extendedor not ", NULL},
{"is_logical", (getter) Partition_get_is_logical, NULL, "returns whether the partition is logical or not", NULL},
{"is_primary", (getter) Partition_get_is_primary, NULL, "returns whether the partition is primary or not", NULL},
{"name", (getter) Partition_get_name, NULL, "partition name string if supported by PT (e.g. Mac)", NULL},
{"flags", (getter) Partition_get_flags, NULL, "partition flags (or attributes for gpt)", NULL},
{"partno", (getter) Partition_get_partno, NULL, "proposed partition number (e.g. 'N' from sda'N') or -1 in case of error", NULL},
{"size", (getter) Partition_get_size, NULL, "size of the partition (in 512-sectors)", NULL},
{"start", (getter) Partition_get_start, NULL, "start of the partition (in 512-sectors)", NULL},
{"table", (getter) Partition_get_table, NULL, "partition table object (usually the same for all partitions, except nested partition tables)", NULL},
{NULL, NULL, NULL, NULL, NULL}
};
PyTypeObject PartitionType = {
PyVarObject_HEAD_INIT (NULL, 0)
.tp_name = "blkid.Partition",
.tp_basicsize = sizeof (PartitionObject),
.tp_itemsize = 0,
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_new = Partition_new,
.tp_dealloc = (destructor) Partition_dealloc,
.tp_init = (initproc) Partition_init,
.tp_getset = Partition_getseters,
};

68
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@ -0,0 +1,68 @@
/*
* Copyright (C) 2020 Red Hat, Inc.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef PARTITIONS_H
#define PARTITIONS_H
#include <Python.h>
#include <blkid/blkid.h>
typedef struct {
PyObject_HEAD
blkid_partlist partlist;
PyObject *Parttable_object;
} PartlistObject;
extern PyTypeObject PartlistType;
PyObject *Partlist_new (PyTypeObject *type, PyObject *args, PyObject *kwargs);
int Partlist_init (PartlistObject *self, PyObject *args, PyObject *kwargs);
void Partlist_dealloc (PartlistObject *self);
PyObject *_Partlist_get_partlist_object (blkid_probe probe);
typedef struct {
PyObject_HEAD
blkid_parttable table;
} ParttableObject;
extern PyTypeObject ParttableType;
PyObject *Parttable_new (PyTypeObject *type, PyObject *args, PyObject *kwargs);
int Parttable_init (ParttableObject *self, PyObject *args, PyObject *kwargs);
void Parttable_dealloc (ParttableObject *self);
PyObject *_Parttable_get_parttable_object (blkid_partlist partlist);
typedef struct {
PyObject_HEAD
int number;
blkid_partition partition;
PyObject *Parttable_object;
} PartitionObject;
extern PyTypeObject PartitionType;
PyObject *Partition_new (PyTypeObject *type, PyObject *args, PyObject *kwargs);
int Partition_init (PartitionObject *self, PyObject *args, PyObject *kwargs);
void Partition_dealloc (PartitionObject *self);
PyObject *_Partition_get_parttable_object (blkid_partition partition);
#endif /* PARTITIONS_H */

959
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/*
* Copyright (C) 2020 Red Hat, Inc.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "probe.h"
#include "topology.h"
#include "partitions.h"
#include <blkid/blkid.h>
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#define UNUSED __attribute__((unused))
PyObject *Probe_new (PyTypeObject *type, PyObject *args UNUSED, PyObject *kwargs UNUSED) {
ProbeObject *self = (ProbeObject*) type->tp_alloc (type, 0);
if (self) {
self->probe = NULL;
self->fd = -1;
self->topology = NULL;
self->partlist = NULL;
}
return (PyObject *) self;
}
int Probe_init (ProbeObject *self, PyObject *args UNUSED, PyObject *kwargs UNUSED) {
if (self->probe)
blkid_free_probe (self->probe);
self->probe = blkid_new_probe ();
if (!self->probe) {
PyErr_SetString (PyExc_MemoryError, "Failed to create new Probe.");
return -1;
}
return 0;
}
void Probe_dealloc (ProbeObject *self) {
if (!self->probe)
/* if init fails */
return;
if (self->fd > 0)
close (self->fd);
if (self->topology)
Py_DECREF (self->topology);
if (self->partlist)
Py_DECREF (self->partlist);
blkid_free_probe (self->probe);
Py_TYPE (self)->tp_free ((PyObject *) self);
}
PyDoc_STRVAR(Probe_set_device__doc__,
"set_device (device, flags=os.O_RDONLY|os.O_CLOEXEC, offset=0, size=0)\n\n"
"Assigns the device to probe control struct, resets internal buffers and resets the current probing.\n\n"
"'flags' define flags for the 'open' system call. By default the device will be opened as read-only.\n"
"'offset' and 'size' specify begin and size of probing area (zero means whole device/file)");
static PyObject *Probe_set_device (ProbeObject *self, PyObject *args, PyObject *kwargs) {
int ret = 0;
char *kwlist[] = { "device", "flags", "offset", "size", NULL };
char *device = NULL;
blkid_loff_t offset = 0;
blkid_loff_t size = 0;
int flags = O_RDONLY|O_CLOEXEC;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "s|iKK", kwlist, &device, &flags, &offset, &size)) {
return NULL;
}
self->fd = open (device, flags);
if (self->fd == -1) {
PyErr_Format (PyExc_OSError, "Failed to open device '%s': %s", device, strerror (errno));
return NULL;
}
ret = blkid_probe_set_device (self->probe, self->fd, offset, size);
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to set device");
return NULL;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_enable_superblocks__doc__,
"enable_superblocks (enable)\n\n" \
"Enables/disables the superblocks probing for non-binary interface.");
static PyObject *Probe_enable_superblocks (ProbeObject *self, PyObject *args, PyObject *kwargs) {
int ret = 0;
bool enable = false;
char *kwlist[] = { "enable", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "p", kwlist, &enable)) {
return NULL;
}
ret = blkid_probe_enable_superblocks (self->probe, enable);
if (ret != 0) {
PyErr_Format (PyExc_RuntimeError, "Failed to %s superblocks probing", enable ? "enable" : "disable");
return NULL;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_set_superblocks_flags__doc__,
"set_superblocks_flags (flags)\n\n" \
"Sets probing flags to the superblocks prober. This function is optional, the default are blkid.SUBLKS_DEFAULTS flags.\n"
"Use blkid.SUBLKS_* constants for the 'flags' argument.");
static PyObject *Probe_set_superblocks_flags (ProbeObject *self, PyObject *args, PyObject *kwargs) {
int ret = 0;
int flags = 0;
char *kwlist[] = { "flags", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i", kwlist, &flags)) {
return NULL;
}
ret = blkid_probe_set_superblocks_flags (self->probe, flags);
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to set partition flags");
return NULL;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_filter_superblocks_type__doc__,
"filter_superblocks_type (flag, names)\n\n" \
"Filter superblocks prober results based on type.\n"
"blkid.FLTR_NOTIN - probe for all items which are NOT IN names\n"
"blkid.FLTR_ONLYIN - probe for items which are IN names\n"
"names: array of probing function names (e.g. 'vfat').");
static PyObject *Probe_filter_superblocks_type (ProbeObject *self, PyObject *args, PyObject *kwargs) {
int ret = 0;
int flag = 0;
PyObject *pynames = NULL;
PyObject *pystring = NULL;
Py_ssize_t len = 0;
char **names = NULL;
char *kwlist[] = { "flag", "names", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "iO", kwlist, &flag, &pynames)) {
return NULL;
}
if (!PySequence_Check (pynames)) {
PyErr_SetString (PyExc_AttributeError, "Failed to parse list of names for filter");
return NULL;
}
len = PySequence_Size (pynames);
if (len < 1) {
PyErr_SetString (PyExc_AttributeError, "Failed to parse list of names for filter");
return NULL;
}
names = malloc(sizeof (char *) * (len + 1));
if (!names) {
PyErr_NoMemory ();
return NULL;
}
for (Py_ssize_t i = 0; i < len; i++) {
pystring = PyUnicode_AsEncodedString (PySequence_GetItem (pynames, i), "utf-8", "replace");
names[i] = strdup (PyBytes_AsString (pystring));
Py_DECREF (pystring);
}
names[len] = NULL;
ret = blkid_probe_filter_superblocks_type (self->probe, flag, names);
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to set probe filter");
for (Py_ssize_t i = 0; i < len; i++)
free(names[i]);
free (names);
return NULL;
}
for (Py_ssize_t i = 0; i < len; i++)
free(names[i]);
free (names);
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_filter_superblocks_usage__doc__,
"filter_superblocks_usage (flag, usage)\n\n" \
"Filter superblocks prober results based on usage.\n"
"blkid.FLTR_NOTIN - probe for all items which are NOT IN names\n"
"blkid.FLTR_ONLYIN - probe for items which are IN names\n"
"usage: blkid.USAGE_* flags");
static PyObject *Probe_filter_superblocks_usage (ProbeObject *self, PyObject *args, PyObject *kwargs) {
int ret = 0;
int flag = 0;
int usage = 0;
char *kwlist[] = { "flag", "usage", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "ii", kwlist, &flag, &usage)) {
return NULL;
}
ret = blkid_probe_filter_superblocks_usage (self->probe, flag, usage);
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to set probe filter");
return NULL;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_invert_superblocks_filter__doc__,
"invert_superblocks_filter ()\n\n"
"This function inverts superblocks probing filter.\n");
static PyObject *Probe_invert_superblocks_filter (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
int ret = 0;
ret = blkid_probe_invert_superblocks_filter (self->probe);
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to invert superblock probing filter");
return NULL;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_reset_superblocks_filter__doc__,
"reset_superblocks_filter ()\n\n"
"This function resets superblocks probing filter.\n");
static PyObject *Probe_reset_superblocks_filter (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
int ret = 0;
ret = blkid_probe_reset_superblocks_filter (self->probe);
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to reset superblock probing filter");
return NULL;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_enable_partitions__doc__,
"enable_partitions (enable)\n\n" \
"Enables/disables the partitions probing for non-binary interface.");
static PyObject *Probe_enable_partitions (ProbeObject *self, PyObject *args, PyObject *kwargs) {
int ret = 0;
bool enable = false;
char *kwlist[] = { "enable", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "p", kwlist, &enable)) {
return NULL;
}
ret = blkid_probe_enable_partitions (self->probe, enable);
if (ret != 0) {
PyErr_Format (PyExc_RuntimeError, "Failed to %s partitions probing", enable ? "enable" : "disable");
return NULL;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_set_partitions_flags__doc__,
"set_partitions_flags (flags)\n\n" \
"Sets probing flags to the partitions prober. This function is optional.\n"
"Use blkid.PARTS_* constants for the 'flags' argument.");
static PyObject *Probe_set_partitions_flags (ProbeObject *self, PyObject *args, PyObject *kwargs) {
int ret = 0;
int flags = 0;
char *kwlist[] = { "flags", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i", kwlist, &flags)) {
return NULL;
}
ret = blkid_probe_set_partitions_flags (self->probe, flags);
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to set superblock flags");
return NULL;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_filter_partitions_type__doc__,
"filter_partitions_type (flag, names)\n\n" \
"Filter partitions prober results based on type.\n"
"blkid.FLTR_NOTIN - probe for all items which are NOT IN names\n"
"blkid.FLTR_ONLYIN - probe for items which are IN names\n"
"names: array of probing function names (e.g. 'vfat').");
static PyObject *Probe_filter_partitions_type (ProbeObject *self, PyObject *args, PyObject *kwargs) {
int ret = 0;
int flag = 0;
PyObject *pynames = NULL;
PyObject *pystring = NULL;
Py_ssize_t len = 0;
char **names = NULL;
char *kwlist[] = { "flag", "names", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "iO", kwlist, &flag, &pynames)) {
return NULL;
}
if (!PySequence_Check (pynames)) {
PyErr_SetString (PyExc_AttributeError, "Failed to parse list of names for filter");
return NULL;
}
len = PySequence_Size (pynames);
if (len < 1) {
PyErr_SetString (PyExc_AttributeError, "Failed to parse list of names for filter");
return NULL;
}
names = malloc(sizeof (char *) * (len + 1));
if (!names) {
PyErr_NoMemory ();
return NULL;
}
for (Py_ssize_t i = 0; i < len; i++) {
pystring = PyUnicode_AsEncodedString (PySequence_GetItem (pynames, i), "utf-8", "replace");
names[i] = strdup (PyBytes_AsString (pystring));
Py_DECREF (pystring);
}
names[len] = NULL;
ret = blkid_probe_filter_partitions_type (self->probe, flag, names);
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to set probe filter");
for (Py_ssize_t i = 0; i < len; i++)
free(names[i]);
free (names);
return NULL;
}
for (Py_ssize_t i = 0; i < len; i++)
free(names[i]);
free (names);
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_invert_partitions_filter__doc__,
"invert_partitions_filter ()\n\n"
"This function inverts partitions probing filter.\n");
static PyObject *Probe_invert_partitions_filter (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
int ret = 0;
ret = blkid_probe_invert_partitions_filter (self->probe);
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to invert superblock probing filter");
return NULL;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_reset_partitions_filter__doc__,
"reset_partitions_filter ()\n\n"
"This function resets partitions probing filter.\n");
static PyObject *Probe_reset_partitions_filter (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
int ret = 0;
ret = blkid_probe_reset_partitions_filter (self->probe);
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to reset superblock probing filter");
return NULL;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_enable_topology__doc__,
"enable_topology (enable)\n\n" \
"Enables/disables the topology probing for non-binary interface.");
static PyObject *Probe_enable_topology (ProbeObject *self, PyObject *args, PyObject *kwargs) {
int ret = 0;
bool enable = false;
char *kwlist[] = { "enable", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "p", kwlist, &enable)) {
return NULL;
}
ret = blkid_probe_enable_topology (self->probe, enable);
if (ret != 0) {
PyErr_Format (PyExc_RuntimeError, "Failed to %s topology probing", enable ? "enable" : "disable");
return NULL;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Probe_lookup_value__doc__,
"lookup_value (name)\n\n" \
"Assigns the device to probe control struct, resets internal buffers and resets the current probing.");
static PyObject *Probe_lookup_value (ProbeObject *self, PyObject *args, PyObject *kwargs) {
int ret = 0;
char *kwlist[] = { "name", NULL };
char *name = NULL;
const char *value = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s", kwlist, &name)) {
return NULL;
}
ret = blkid_probe_lookup_value (self->probe, name, &value, NULL);
if (ret != 0) {
PyErr_Format (PyExc_RuntimeError, "Failed to lookup '%s'", name);
return NULL;
}
return PyBytes_FromString (value);
}
PyDoc_STRVAR(Probe_do_safeprobe__doc__,
"do_safeprobe ()\n\n"
"This function gathers probing results from all enabled chains and checks for ambivalent results"
"(e.g. more filesystems on the device).\n"
"Returns True on success, False if nothing is detected.\n\n"
"Note about superblocks chain -- the function does not check for filesystems when a RAID signature is detected.\n"
"The function also does not check for collision between RAIDs. The first detected RAID is returned.\n"
"The function checks for collision between partition table and RAID signature -- it's recommended to "
"enable partitions chain together with superblocks chain.\n");
static PyObject *Probe_do_safeprobe (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
int ret = 0;
if (self->fd < 0) {
PyErr_SetString (PyExc_ValueError, "No device set");
return NULL;
}
if (self->topology) {
Py_DECREF (self->topology);
self->topology = NULL;
}
if (self->partlist) {
Py_DECREF (self->partlist);
self->partlist = NULL;
}
ret = blkid_do_safeprobe (self->probe);
if (ret < 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to safeprobe the device");
return NULL;
}
if (ret == 0)
Py_RETURN_TRUE;
else
Py_RETURN_FALSE;
}
PyDoc_STRVAR(Probe_do_fullprobe__doc__,
"do_fullprobe ()\n\n"
"Returns True on success, False if nothing is detected.\n"
"This function gathers probing results from all enabled chains. Same as do_safeprobe() but "
"does not check for collision between probing result.");
static PyObject *Probe_do_fullprobe (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
int ret = 0;
if (self->fd < 0) {
PyErr_SetString (PyExc_ValueError, "No device set");
return NULL;
}
if (self->topology) {
Py_DECREF (self->topology);
self->topology = NULL;
}
if (self->partlist) {
Py_DECREF (self->partlist);
self->partlist = NULL;
}
ret = blkid_do_fullprobe (self->probe);
if (ret < 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to fullprobe the device");
return NULL;
}
if (ret == 0)
Py_RETURN_TRUE;
else
Py_RETURN_FALSE;
}
PyDoc_STRVAR(Probe_do_probe__doc__,
"do_probe ()\n\n"
"Calls probing functions in all enabled chains. The superblocks chain is enabled by default.\n"
"Returns True on success, False if nothing is detected.\n\n"
"The do_probe() stores result from only one probing function. It's necessary to call this routine "
"in a loop to get results from all probing functions in all chains. The probing is reset by "
"reset_probe() or by filter functions.");
static PyObject *Probe_do_probe (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
int ret = 0;
if (self->fd < 0) {
PyErr_SetString (PyExc_ValueError, "No device set");
return NULL;
}
if (self->topology) {
Py_DECREF (self->topology);
self->topology = NULL;
}
if (self->partlist) {
Py_DECREF (self->partlist);
self->partlist = NULL;
}
ret = blkid_do_probe (self->probe);
if (ret < 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to probe the device");
return NULL;
}
if (ret == 0)
Py_RETURN_TRUE;
else
Py_RETURN_FALSE;
}
PyDoc_STRVAR(Probe_step_back__doc__,
"step_back ()\n\n"
"This function move pointer to the probing chain one step back -- it means that the previously "
"used probing function will be called again in the next Probe.do_probe() call.\n"
"This is necessary for example if you erase or modify on-disk superblock according to the "
"current libblkid probing result.\n"
"Note that Probe.hide_range() changes semantic of this function and cached buffers are "
"not reset, but library uses in-memory modified buffers to call the next probing function.");
static PyObject *Probe_step_back (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
int ret = 0;
ret = blkid_probe_step_back (self->probe);
if (ret < 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to step back the probe");
return NULL;
}
Py_RETURN_NONE;
}
#ifdef HAVE_BLKID_2_31
PyDoc_STRVAR(Probe_reset_buffers__doc__,
"reset_buffers ()\n\n"
"libblkid reuse all already read buffers from the device. The buffers may be modified by Probe.hide_range().\n"
"This function reset and free all cached buffers. The next Probe.do_probe() will read all data from the device.");
static PyObject *Probe_reset_buffers (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
int ret = 0;
ret = blkid_probe_reset_buffers (self->probe);
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to reset buffers");
return NULL;
}
Py_RETURN_NONE;
}
#endif
PyDoc_STRVAR(Probe_reset_probe__doc__,
"reset_probe ()\n\n"
"Zeroize probing results and resets the current probing (this has impact to do_probe() only).\n"
"This function does not touch probing filters and keeps assigned device.");
static PyObject *Probe_reset_probe (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
blkid_reset_probe (self->probe);
if (self->topology) {
Py_DECREF (self->topology);
self->topology = NULL;
}
if (self->partlist) {
Py_DECREF (self->partlist);
self->partlist = NULL;
}
Py_RETURN_NONE;
}
#ifdef HAVE_BLKID_2_31
PyDoc_STRVAR(Probe_hide_range__doc__,
"hide_range (offset, length)\n\n" \
"This function modifies in-memory cached data from the device. The specified range is zeroized. "
"This is usable together with Probe.step_back(). The next Probe.do_probe() will not see specified area.\n"
"Note that this is usable for already (by library) read data, and this function is not a way "
"how to hide any large areas on your device.\n"
"The function Probe.reset_buffers() reverts all.");
static PyObject *Probe_hide_range (ProbeObject *self, PyObject *args, PyObject *kwargs) {
int ret = 0;
char *kwlist[] = { "offset", "length", NULL };
uint64_t offset = 0;
uint64_t length = 0;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "ii", kwlist, &offset, &length)) {
return NULL;
}
ret = blkid_probe_hide_range (self->probe, offset, length);
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to hide range");
return NULL;
}
Py_RETURN_NONE;
}
#endif
#ifdef HAVE_BLKID_2_40
PyDoc_STRVAR(Probe_wipe_all__doc__,
"wipe_all ()\n\n"
"This function erases all detectable signatures from probe. The probe has to be open in O_RDWR mode. "
"All other necessary configurations will be enabled automatically.");
static PyObject *Probe_wipe_all (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
int ret = 0;
ret = blkid_wipe_all (self->probe);
if (ret < 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to probe the device");
return NULL;
}
Py_RETURN_NONE;
}
#endif
PyDoc_STRVAR(Probe_do_wipe__doc__,
"do_wipe (dryrun=False)\n\n"
"This function erases the current signature detected by the probe. The probe has to be open in "
"O_RDWR mode, blkid.SUBLKS_MAGIC or/and blkid.PARTS_MAGIC flags has to be enabled (if you want "
"to erase also superblock with broken check sums then use blkid.SUBLKS_BADCSUM too).\n\n"
"After successful signature removing the probe prober will be moved one step back and the next "
"do_probe() call will again call previously called probing function. All in-memory cached data "
"from the device are always reset.");
static PyObject *Probe_do_wipe (ProbeObject *self, PyObject *args, PyObject *kwargs) {
int ret = 0;
char *kwlist[] = { "dryrun", NULL };
bool dryrun = false;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|p", kwlist, &dryrun)) {
return NULL;
}
ret = blkid_do_wipe (self->probe, dryrun);
if (ret != 0) {
PyErr_Format (PyExc_RuntimeError, "Failed to wipe the device: %s", strerror (errno));
return NULL;
}
Py_RETURN_NONE;
}
static PyObject * probe_to_dict (ProbeObject *self) {
PyObject *dict = NULL;
int ret = 0;
int nvalues = 0;
const char *name = NULL;
const char *value = NULL;
PyObject *py_value = NULL;
ret = blkid_probe_numof_values (self->probe);
if (ret < 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to get probe results");
return NULL;
}
nvalues = ret;
dict = PyDict_New ();
if (!dict) {
PyErr_NoMemory ();
return NULL;
}
for (int i = 0; i < nvalues; i++) {
ret = blkid_probe_get_value (self->probe, i, &name, &value, NULL);
if (ret < 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to get probe results");
return NULL;
}
py_value = PyUnicode_FromString (value);
if (py_value == NULL) {
Py_INCREF (Py_None);
py_value = Py_None;
}
PyDict_SetItemString (dict, name, py_value);
Py_DECREF (py_value);
}
return dict;
}
PyDoc_STRVAR(Probe_items__doc__,
"items ()\n");
static PyObject *Probe_items (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
PyObject *dict = probe_to_dict (self);
if (PyErr_Occurred ())
return NULL;
PyObject *ret = PyDict_Items (dict);
PyDict_Clear (dict);
return ret;
}
PyDoc_STRVAR(Probe_values__doc__,
"values ()\n");
static PyObject *Probe_values (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
PyObject *dict = probe_to_dict (self);
if (PyErr_Occurred ())
return NULL;
PyObject *ret = PyDict_Values (dict);
PyDict_Clear (dict);
return ret;
}
PyDoc_STRVAR(Probe_keys__doc__,
"keys ()\n");
static PyObject *Probe_keys (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
PyObject *dict = probe_to_dict (self);
if (PyErr_Occurred ())
return NULL;
PyObject *ret = PyDict_Keys (dict);
PyDict_Clear (dict);
return ret;
}
static PyMethodDef Probe_methods[] = {
{"set_device", (PyCFunction)(void(*)(void)) Probe_set_device, METH_VARARGS|METH_KEYWORDS, Probe_set_device__doc__},
{"do_safeprobe", (PyCFunction) Probe_do_safeprobe, METH_NOARGS, Probe_do_safeprobe__doc__},
{"do_fullprobe", (PyCFunction) Probe_do_fullprobe, METH_NOARGS, Probe_do_fullprobe__doc__},
{"do_probe", (PyCFunction) Probe_do_probe, METH_NOARGS, Probe_do_probe__doc__},
{"step_back", (PyCFunction) Probe_step_back, METH_NOARGS, Probe_step_back__doc__},
#ifdef HAVE_BLKID_2_31
{"reset_buffers", (PyCFunction) Probe_reset_buffers, METH_NOARGS, Probe_reset_buffers__doc__},
#endif
{"reset_probe", (PyCFunction) Probe_reset_probe, METH_NOARGS, Probe_reset_probe__doc__},
#ifdef HAVE_BLKID_2_31
{"hide_range", (PyCFunction)(void(*)(void)) Probe_hide_range, METH_VARARGS|METH_KEYWORDS, Probe_hide_range__doc__},
#endif
#ifdef HAVE_BLKID_2_40
{"wipe_all", (PyCFunction) Probe_wipe_all, METH_NOARGS, Probe_wipe_all__doc__},
#endif
{"do_wipe", (PyCFunction)(void(*)(void)) Probe_do_wipe, METH_VARARGS|METH_KEYWORDS, Probe_do_wipe__doc__},
{"enable_partitions", (PyCFunction)(void(*)(void)) Probe_enable_partitions, METH_VARARGS|METH_KEYWORDS, Probe_enable_partitions__doc__},
{"set_partitions_flags", (PyCFunction)(void(*)(void)) Probe_set_partitions_flags, METH_VARARGS|METH_KEYWORDS, Probe_set_partitions_flags__doc__},
{"filter_partitions_type", (PyCFunction)(void(*)(void)) Probe_filter_partitions_type, METH_VARARGS|METH_KEYWORDS, Probe_filter_partitions_type__doc__},
{"invert_partitions_filter", (PyCFunction) Probe_invert_partitions_filter, METH_NOARGS, Probe_invert_partitions_filter__doc__},
{"reset_partitions_filter", (PyCFunction) Probe_reset_partitions_filter, METH_NOARGS, Probe_reset_partitions_filter__doc__},
{"enable_topology", (PyCFunction)(void(*)(void)) Probe_enable_topology, METH_VARARGS|METH_KEYWORDS, Probe_enable_topology__doc__},
{"enable_superblocks", (PyCFunction)(void(*)(void)) Probe_enable_superblocks, METH_VARARGS|METH_KEYWORDS, Probe_enable_superblocks__doc__},
{"filter_superblocks_type", (PyCFunction)(void(*)(void)) Probe_filter_superblocks_type, METH_VARARGS|METH_KEYWORDS, Probe_filter_superblocks_type__doc__},
{"filter_superblocks_usage", (PyCFunction)(void(*)(void)) Probe_filter_superblocks_usage, METH_VARARGS|METH_KEYWORDS, Probe_filter_superblocks_usage__doc__},
{"set_superblocks_flags", (PyCFunction)(void(*)(void)) Probe_set_superblocks_flags, METH_VARARGS|METH_KEYWORDS, Probe_set_superblocks_flags__doc__},
{"invert_superblocks_filter", (PyCFunction) Probe_invert_superblocks_filter, METH_NOARGS, Probe_invert_superblocks_filter__doc__},
{"reset_superblocks_filter", (PyCFunction) Probe_reset_superblocks_filter, METH_NOARGS, Probe_reset_superblocks_filter__doc__},
{"lookup_value", (PyCFunction)(void(*)(void)) Probe_lookup_value, METH_VARARGS|METH_KEYWORDS, Probe_lookup_value__doc__},
{"items", (PyCFunction) Probe_items, METH_NOARGS, Probe_items__doc__},
{"values", (PyCFunction) Probe_values, METH_NOARGS, Probe_values__doc__},
{"keys", (PyCFunction) Probe_keys, METH_NOARGS, Probe_keys__doc__},
{NULL, NULL, 0, NULL}
};
static PyObject *Probe_get_devno (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
dev_t devno = blkid_probe_get_devno (self->probe);
return PyLong_FromUnsignedLong (devno);
}
static PyObject *Probe_get_fd (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
return PyLong_FromLong (self->fd);
}
static PyObject *Probe_get_offset (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
blkid_loff_t offset = blkid_probe_get_offset (self->probe);
return PyLong_FromLongLong (offset);
}
static PyObject *Probe_get_sectors (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
blkid_loff_t sectors = blkid_probe_get_sectors (self->probe);
return PyLong_FromLongLong (sectors);
}
static PyObject *Probe_get_size (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
blkid_loff_t size = blkid_probe_get_size (self->probe);
return PyLong_FromLongLong (size);
}
static PyObject *Probe_get_sector_size (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
unsigned int sector_size = blkid_probe_get_sectorsize (self->probe);
return PyLong_FromUnsignedLong (sector_size);
}
#ifdef HAVE_BLKID_2_30
static int Probe_set_sector_size (ProbeObject *self, PyObject *value, void *closure UNUSED) {
unsigned int sector_size = 0;
int ret = 0;
if (!PyLong_Check (value)) {
PyErr_SetString (PyExc_TypeError, "Invalid argument");
return -1;
}
sector_size = PyLong_AsLong (value);
ret = blkid_probe_set_sectorsize (self->probe, sector_size);
if (ret != 0) {
PyErr_Format (PyExc_RuntimeError, "Failed to set sector size");
return -1;
}
return 0;
}
#endif
static PyObject *Probe_get_wholedisk_devno (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
dev_t devno = blkid_probe_get_wholedisk_devno (self->probe);
return PyLong_FromUnsignedLong (devno);
}
static PyObject *Probe_get_is_wholedisk (ProbeObject *self __attribute__((unused)), PyObject *Py_UNUSED (ignored)) {
int wholedisk = blkid_probe_is_wholedisk (self->probe);
return PyBool_FromLong (wholedisk);
}
static PyObject *Probe_get_topology (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
if (self->topology) {
Py_INCREF (self->topology);
return self->topology;
}
self->topology = _Topology_get_topology_object (self->probe);
return self->topology;
}
static PyObject *Probe_get_partitions (ProbeObject *self, PyObject *Py_UNUSED (ignored)) {
if (self->partlist) {
Py_INCREF (self->partlist);
return self->partlist;
}
self->partlist = _Partlist_get_partlist_object (self->probe);
return self->partlist;
}
static PyGetSetDef Probe_getseters[] = {
{"devno", (getter) Probe_get_devno, NULL, "block device number, or 0 for regular files", NULL},
{"fd", (getter) Probe_get_fd, NULL, "file descriptor for assigned device/file or -1 in case of error", NULL},
{"offset", (getter) Probe_get_offset, NULL, "offset of probing area as defined by Probe.set_device() or -1 in case of error", NULL},
{"sectors", (getter) Probe_get_sectors, NULL, "512-byte sector count or -1 in case of error", NULL},
{"size", (getter) Probe_get_size, NULL, "size of probing area as defined by Probe.set_device()", NULL},
#ifdef HAVE_BLKID_2_30
{"sector_size", (getter) Probe_get_sector_size, (setter) Probe_set_sector_size, "block device logical sector size (BLKSSZGET ioctl, default 512).", NULL},
#else
{"sector_size", (getter) Probe_get_sector_size, NULL, "block device logical sector size (BLKSSZGET ioctl, default 512).", NULL},
#endif
{"wholedisk_devno", (getter) Probe_get_wholedisk_devno, NULL, "device number of the wholedisk, or 0 for regular files", NULL},
{"is_wholedisk", (getter) Probe_get_is_wholedisk, NULL, "True if the device is whole-disk, False otherwise", NULL},
{"topology", (getter) Probe_get_topology, NULL, "binary interface for topology values", NULL},
{"partitions", (getter) Probe_get_partitions, NULL, "binary interface for partitions", NULL},
{NULL, NULL, NULL, NULL, NULL}
};
static Py_ssize_t Probe_len (ProbeObject *self) {
int ret = 0;
ret = blkid_probe_numof_values (self->probe);
if (ret < 0)
return 0;
return (Py_ssize_t) ret;
}
static PyObject * Probe_getitem (ProbeObject *self, PyObject *item) {
int ret = 0;
const char *key = NULL;
const char *value = NULL;
if (!PyUnicode_Check (item)) {
PyErr_SetObject(PyExc_KeyError, item);
return NULL;
}
key = PyUnicode_AsUTF8 (item);
ret = blkid_probe_lookup_value (self->probe, key, &value, NULL);
if (ret != 0) {
PyErr_SetObject (PyExc_KeyError, item);
return NULL;
}
return PyBytes_FromString (value);
}
PyMappingMethods ProbeMapping = {
.mp_length = (lenfunc) Probe_len,
.mp_subscript = (binaryfunc) Probe_getitem,
};
PyTypeObject ProbeType = {
PyVarObject_HEAD_INIT (NULL, 0)
.tp_name = "blkid.Probe",
.tp_basicsize = sizeof (ProbeObject),
.tp_itemsize = 0,
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_new = Probe_new,
.tp_dealloc = (destructor) Probe_dealloc,
.tp_init = (initproc) Probe_init,
.tp_methods = Probe_methods,
.tp_getset = Probe_getseters,
.tp_as_mapping = &ProbeMapping,
};

39
packages/pyblkid/opengnsys-pyblkid-0.3/src/probe.h vendored 100644
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@ -0,0 +1,39 @@
/*
* Copyright (C) 2020 Red Hat, Inc.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef PROBE_H
#define PROBE_H
#include <Python.h>
#include <blkid/blkid.h>
typedef struct {
PyObject_HEAD
blkid_probe probe;
PyObject *topology;
PyObject *partlist;
int fd;
} ProbeObject;
extern PyTypeObject ProbeType;
PyObject *Probe_new (PyTypeObject *type, PyObject *args, PyObject *kwargs);
int Probe_init (ProbeObject *self, PyObject *args, PyObject *kwargs);
void Probe_dealloc (ProbeObject *self);
#endif /* PROBE_H */

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@ -0,0 +1,631 @@
/*
* Copyright (C) 2020 Red Hat, Inc.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "pyblkid.h"
#include "probe.h"
#include "topology.h"
#include "partitions.h"
#include "cache.h"
#include <blkid/blkid.h>
#include <errno.h>
#include <fcntl.h>
#define UNUSED __attribute__((unused))
PyDoc_STRVAR(Blkid_init_debug__doc__,
"init_debug (mask)\n\n"
"If the mask is not specified then this function reads LIBBLKID_DEBUG environment variable to get the mask.\n"
"Already initialized debugging stuff cannot be changed. It does not have effect to call this function twice.\n\n"
"Use '0xffff' to enable full debugging.\n");
static PyObject *Blkid_init_debug (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
int mask = 0;
char *kwlist[] = { "mask", NULL };
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "|i", kwlist, &mask))
return NULL;
blkid_init_debug (mask);
Py_RETURN_NONE;
}
PyDoc_STRVAR(Blkid_known_fstype__doc__,
"known_fstype (fstype)\n\n"
"Returns whether fstype is a known filesystem type or not.\n");
static PyObject *Blkid_known_fstype (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
const char *fstype = NULL;
char *kwlist[] = { "fstype", NULL };
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "s", kwlist, &fstype))
return NULL;
return PyBool_FromLong (blkid_known_fstype (fstype));
}
PyDoc_STRVAR(Blkid_send_uevent__doc__,
"send_uevent (devname, action)\n\n");
static PyObject *Blkid_send_uevent (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
const char *devname = NULL;
const char *action = NULL;
char *kwlist[] = { "devname", "action", NULL };
int ret = 0;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "ss", kwlist, &devname, &action))
return NULL;
ret = blkid_send_uevent (devname, action);
if (ret < 0) {
PyErr_Format (PyExc_RuntimeError, "Failed to send %s uevent do device '%s'", action, devname);
return NULL;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(Blkid_known_pttype__doc__,
"known_pttype (pttype)\n\n"
"Returns whether pttype is a known partition type or not.\n");
static PyObject *Blkid_known_pttype (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
const char *pttype = NULL;
char *kwlist[] = { "pttype", NULL };
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "s", kwlist, &pttype))
return NULL;
return PyBool_FromLong (blkid_known_pttype (pttype));
}
static int _Py_Dev_Converter (PyObject *obj, void *p) {
#ifdef HAVE_LONG_LONG
*((dev_t *)p) = PyLong_AsUnsignedLongLong (obj);
#else
*((dev_t *)p) = PyLong_AsUnsignedLong (obj);
#endif
if (PyErr_Occurred ())
return 0;
return 1;
}
#ifdef HAVE_LONG_LONG
#define _PyLong_FromDev PyLong_FromLongLong
#else
#define _PyLong_FromDev PyLong_FromLong
#endif
PyDoc_STRVAR(Blkid_devno_to_devname__doc__,
"devno_to_devname (devno)\n\n"
"This function finds the pathname to a block device with a given device number.\n");
static PyObject *Blkid_devno_to_devname (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
dev_t devno = 0;
char *kwlist[] = { "devno", NULL };
char *devname = NULL;
PyObject *ret = NULL;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "O&:devno_to_devname", kwlist, _Py_Dev_Converter, &devno))
return NULL;
devname = blkid_devno_to_devname (devno);
if (!devname) {
PyErr_SetString (PyExc_RuntimeError, "Failed to get devname");
return NULL;
}
ret = PyUnicode_FromString (devname);
free (devname);
return ret;
}
PyDoc_STRVAR(Blkid_devno_to_wholedisk__doc__,
"devno_to_wholedisk (devno)\n\n"
"This function uses sysfs to convert the devno device number to the name and devno of the whole disk.");
static PyObject *Blkid_devno_to_wholedisk (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
dev_t devno = 0;
dev_t diskdevno = 0;
char *kwlist[] = { "devno", NULL };
#ifdef HAVE_BLKID_2_28
char diskname[32];
#else
char diskname[PATH_MAX];
#endif
int ret = 0;
PyObject *tuple = NULL;
PyObject *py_name = NULL;
PyObject *py_devno = NULL;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "O&:devno_to_wholedisk", kwlist, _Py_Dev_Converter, &devno))
return NULL;
#ifdef HAVE_BLKID_2_28
ret = blkid_devno_to_wholedisk (devno, diskname, 32, &diskdevno);
#else
ret = blkid_devno_to_wholedisk (devno, diskname, PATH_MAX, &diskdevno);
#endif
if (ret != 0) {
PyErr_SetString (PyExc_RuntimeError, "Failed to get whole disk name");
return NULL;
}
tuple = PyTuple_New (2);
py_name = PyUnicode_FromString (diskname);
if (py_name == NULL) {
Py_INCREF (Py_None);
py_name = Py_None;
}
PyTuple_SetItem (tuple, 0, py_name);
py_devno = _PyLong_FromDev (diskdevno);
if (py_devno == NULL) {
Py_INCREF (Py_None);
py_devno = Py_None;
}
PyTuple_SetItem (tuple, 1, py_devno);
return tuple;
}
PyDoc_STRVAR(Blkid_parse_version_string__doc__,
"parse_version_string (version)\n\n"
"Convert version string (e.g. '2.16.0') to release version code (e.g. '2160').\n");
static PyObject *Blkid_parse_version_string (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
char *ver_str = NULL;
char *kwlist[] = { "version", NULL };
int ret = 0;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "s", kwlist, &ver_str))
return NULL;
ret = blkid_parse_version_string (ver_str);
return PyLong_FromLong (ret);
}
PyDoc_STRVAR(Blkid_get_library_version__doc__,
"get_library_version ()\n\n"
"Returns tuple of release version code (int), version string and date.\n");
static PyObject *Blkid_get_library_version (ProbeObject *self UNUSED, PyObject *Py_UNUSED (ignored)) {
const char *ver_str = NULL;
const char *date = NULL;
int ver_code = 0;
PyObject *ret = NULL;
PyObject *py_code = NULL;
PyObject *py_ver = NULL;
PyObject *py_date = NULL;
ver_code = blkid_get_library_version (&ver_str, &date);
ret = PyTuple_New (3);
py_code = PyLong_FromLong (ver_code);
PyTuple_SetItem (ret, 0, py_code);
py_ver = PyUnicode_FromString (ver_str);
if (py_ver == NULL) {
Py_INCREF (Py_None);
py_ver = Py_None;
}
PyTuple_SetItem (ret, 1, py_ver);
py_date = PyUnicode_FromString (date);
if (py_date == NULL) {
Py_INCREF (Py_None);
py_date = Py_None;
}
PyTuple_SetItem (ret, 2, py_date);
return ret;
}
PyDoc_STRVAR(Blkid_parse_tag_string__doc__,
"parse_tag_string (tag)\n\n"
"Parse a 'NAME=value' string, returns tuple of type and value.\n");
static PyObject *Blkid_parse_tag_string (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
char *tag_str = NULL;
char *kwlist[] = { "tag", NULL };
int ret = 0;
char *type = NULL;
char *value = NULL;
PyObject *py_type = NULL;
PyObject *py_value = NULL;
PyObject *tuple = NULL;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "s", kwlist, &tag_str))
return NULL;
ret = blkid_parse_tag_string (tag_str, &type, &value);
if (ret < 0) {
PyErr_Format (PyExc_RuntimeError, "Failed to parse tag '%s'", tag_str);
return NULL;
}
tuple = PyTuple_New (2);
py_type = PyUnicode_FromString (type);
if (py_type == NULL) {
Py_INCREF (Py_None);
py_type = Py_None;
}
PyTuple_SetItem (tuple, 0, py_type);
free (type);
py_value = PyUnicode_FromString (value);
if (py_value == NULL) {
Py_INCREF (Py_None);
py_value = Py_None;
}
PyTuple_SetItem (tuple, 1, py_value);
free (value);
return tuple;
}
PyDoc_STRVAR(Blkid_get_dev_size__doc__,
"get_dev_size (device)\n\n"
"Returns size (in bytes) of the block device or size of the regular file.\n");
static PyObject *Blkid_get_dev_size (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
char *device = NULL;
char *kwlist[] = { "device", NULL };
blkid_loff_t ret = 0;
int fd = 0;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "s", kwlist, &device))
return NULL;
fd = open (device, O_RDONLY|O_CLOEXEC);
if (fd == -1) {
PyErr_Format (PyExc_OSError, "Failed to open device '%s': %s", device, strerror (errno));
return NULL;
}
ret = blkid_get_dev_size (fd);
if (ret == 0) {
PyErr_Format (PyExc_RuntimeError, "Failed to get size of device '%s'", device);
close (fd);
return NULL;
}
close (fd);
return PyLong_FromLongLong (ret);
}
PyDoc_STRVAR(Blkid_encode_string__doc__,
"encode_string (string)\n\n"
"Encode all potentially unsafe characters of a string to the corresponding hex value prefixed by '\\x'.\n");
static PyObject *Blkid_encode_string (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
char *string = NULL;
char *kwlist[] = { "string", NULL };
char *encoded_string = NULL;
int ret = 0;
size_t inlen = 0;
size_t outlen = 0;
PyObject *py_ret = NULL;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "s", kwlist, &string))
return NULL;
inlen = strlen (string);
outlen = inlen * 4;
encoded_string = malloc (sizeof (char) * (outlen + 1 ));
ret = blkid_encode_string (string, encoded_string, outlen);
if (ret != 0) {
PyErr_Format (PyExc_RuntimeError, "Failed to encode string");
free (encoded_string);
return NULL;
}
py_ret = PyUnicode_FromString (encoded_string);
free (encoded_string);
return py_ret;
}
PyDoc_STRVAR(Blkid_safe_string__doc__,
"safe_string (string)\n\n"
"Allows plain ascii, hex-escaping and valid utf8. Replaces all whitespaces with '_'.\n");
static PyObject *Blkid_safe_string (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
char *string = NULL;
char *kwlist[] = { "string", NULL };
char *safe_string = NULL;
int ret = 0;
size_t inlen = 0;
size_t outlen = 0;
PyObject *py_ret = NULL;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "s", kwlist, &string))
return NULL;
inlen = strlen (string);
outlen = inlen * 4;
safe_string = malloc (sizeof (char) * (outlen + 1 ));
ret = blkid_safe_string (string, safe_string, outlen);
if (ret != 0) {
PyErr_Format (PyExc_RuntimeError, "Failed to make safe string");
free (safe_string);
return NULL;
}
py_ret = PyUnicode_FromString (safe_string);
free (safe_string);
return py_ret;
}
#ifdef HAVE_BLKID_2_30
PyDoc_STRVAR(Blkid_partition_types__doc__,
"partition_types ()\n\n"
"List of supported partition types.\n");
static PyObject *Blkid_partition_types (ProbeObject *self UNUSED, PyObject *Py_UNUSED (ignored)) {
PyObject *ret = NULL;
PyObject *py_name = NULL;
size_t idx = 0;
const char *name = NULL;
ret = PyList_New (0);
while (blkid_partitions_get_name (idx++, &name) == 0) {
py_name = PyUnicode_FromString (name);
if (py_name != NULL)
PyList_Append (ret, py_name);
}
return ret;
}
#endif
PyDoc_STRVAR(Blkid_superblocks__doc__,
"superblocks ()\n\n"
"List of supported superblocks.\n");
static PyObject *Blkid_superblocks (ProbeObject *self UNUSED, PyObject *Py_UNUSED (ignored)) {
PyObject *ret = NULL;
PyObject *py_name = NULL;
size_t idx = 0;
const char *name = NULL;
ret = PyList_New (0);
while (blkid_superblocks_get_name (idx++, &name, NULL) == 0) {
py_name = PyUnicode_FromString (name);
if (py_name != NULL)
PyList_Append (ret, py_name);
}
return ret;
}
PyDoc_STRVAR(Blkid_evaluate_tag__doc__,
"evaluate_tag (token, value)\n\n"
"Get device name that match the specified token (e.g \"LABEL\" or \"UUID\") and token value.\n"
"The evaluation could be controlled by the /etc/blkid.conf config file. The default is to try \"udev\" and then \"scan\" method.\n");
static PyObject *Blkid_evaluate_tag (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
char *token = NULL;
char *value = NULL;
char *kwlist[] = { "token", "value", NULL };
PyObject *py_ret = NULL;
char *ret = NULL;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "ss", kwlist, &token, &value))
return NULL;
ret = blkid_evaluate_tag (token, value, NULL);
if (ret == NULL) {
Py_INCREF (Py_None);
py_ret = Py_None;
} else {
py_ret = PyUnicode_FromString (ret);
free (ret);
}
return py_ret;
}
PyDoc_STRVAR(Blkid_evaluate_spec__doc__,
"evaluate_spec (spec)\n\n"
"Get device name that match the unparsed tag (e.g. \"LABEL=foo\") or path (e.g. /dev/dm-0)\n"
"The evaluation could be controlled by the /etc/blkid.conf config file. The default is to try \"udev\" and then \"scan\" method.\n");
static PyObject *Blkid_evaluate_spec (PyObject *self UNUSED, PyObject *args, PyObject *kwargs) {
char *spec = NULL;
char *kwlist[] = { "spec", NULL };
PyObject *py_ret = NULL;
char *ret = NULL;
if (!PyArg_ParseTupleAndKeywords (args, kwargs, "s", kwlist, &spec))
return NULL;
ret = blkid_evaluate_spec (spec, NULL);
if (ret == NULL) {
Py_INCREF (Py_None);
py_ret = Py_None;
} else {
py_ret = PyUnicode_FromString (ret);
free (ret);
}
return py_ret;
}
static PyMethodDef BlkidMethods[] = {
{"init_debug", (PyCFunction)(void(*)(void)) Blkid_init_debug, METH_VARARGS|METH_KEYWORDS, Blkid_init_debug__doc__},
{"known_fstype", (PyCFunction)(void(*)(void)) Blkid_known_fstype, METH_VARARGS|METH_KEYWORDS, Blkid_known_fstype__doc__},
{"send_uevent", (PyCFunction)(void(*)(void)) Blkid_send_uevent, METH_VARARGS|METH_KEYWORDS, Blkid_send_uevent__doc__},
{"devno_to_devname", (PyCFunction)(void(*)(void)) Blkid_devno_to_devname, METH_VARARGS|METH_KEYWORDS, Blkid_devno_to_devname__doc__},
{"devno_to_wholedisk", (PyCFunction)(void(*)(void)) Blkid_devno_to_wholedisk, METH_VARARGS|METH_KEYWORDS, Blkid_devno_to_wholedisk__doc__},
{"known_pttype", (PyCFunction)(void(*)(void)) Blkid_known_pttype, METH_VARARGS|METH_KEYWORDS, Blkid_known_pttype__doc__},
{"parse_version_string", (PyCFunction)(void(*)(void)) Blkid_parse_version_string, METH_VARARGS|METH_KEYWORDS, Blkid_parse_version_string__doc__},
{"get_library_version", (PyCFunction) Blkid_get_library_version, METH_NOARGS, Blkid_get_library_version__doc__},
{"parse_tag_string", (PyCFunction)(void(*)(void)) Blkid_parse_tag_string, METH_VARARGS|METH_KEYWORDS, Blkid_parse_tag_string__doc__},
{"get_dev_size", (PyCFunction)(void(*)(void)) Blkid_get_dev_size, METH_VARARGS|METH_KEYWORDS, Blkid_get_dev_size__doc__},
{"encode_string", (PyCFunction)(void(*)(void)) Blkid_encode_string, METH_VARARGS|METH_KEYWORDS, Blkid_encode_string__doc__},
{"safe_string", (PyCFunction)(void(*)(void)) Blkid_safe_string, METH_VARARGS|METH_KEYWORDS, Blkid_safe_string__doc__},
#ifdef HAVE_BLKID_2_30
{"partition_types", (PyCFunction) Blkid_partition_types, METH_NOARGS, Blkid_partition_types__doc__},
#endif
{"superblocks", (PyCFunction) Blkid_superblocks, METH_NOARGS, Blkid_superblocks__doc__},
{"evaluate_tag", (PyCFunction)(void(*)(void)) Blkid_evaluate_tag, METH_VARARGS|METH_KEYWORDS, Blkid_evaluate_tag__doc__},
{"evaluate_spec", (PyCFunction)(void(*)(void)) Blkid_evaluate_spec, METH_VARARGS|METH_KEYWORDS, Blkid_evaluate_spec__doc__},
{NULL, NULL, 0, NULL}
};
static struct PyModuleDef blkidmodule = {
PyModuleDef_HEAD_INIT,
.m_name = "blkid",
.m_doc = "Python interface for the libblkid C library",
.m_size = -1,
.m_methods = BlkidMethods,
};
PyMODINIT_FUNC PyInit_blkid (void) {
PyObject *module = NULL;
if (PyType_Ready (&ProbeType) < 0)
return NULL;
if (PyType_Ready (&TopologyType) < 0)
return NULL;
if (PyType_Ready (&PartlistType) < 0)
return NULL;
if (PyType_Ready (&ParttableType) < 0)
return NULL;
if (PyType_Ready (&PartitionType) < 0)
return NULL;
if (PyType_Ready (&CacheType) < 0)
return NULL;
if (PyType_Ready (&DeviceType) < 0)
return NULL;
module = PyModule_Create (&blkidmodule);
if (!module)
return NULL;
PyModule_AddIntConstant (module, "FLTR_NOTIN", BLKID_FLTR_NOTIN);
PyModule_AddIntConstant (module, "FLTR_ONLYIN", BLKID_FLTR_ONLYIN);
PyModule_AddIntConstant (module, "DEV_CREATE", BLKID_DEV_CREATE);
PyModule_AddIntConstant (module, "DEV_FIND", BLKID_DEV_FIND);
PyModule_AddIntConstant (module, "DEV_NORMAL", BLKID_DEV_NORMAL);
PyModule_AddIntConstant (module, "DEV_VERIFY", BLKID_DEV_VERIFY);
PyModule_AddIntConstant (module, "PARTS_ENTRY_DETAILS", BLKID_PARTS_ENTRY_DETAILS);
PyModule_AddIntConstant (module, "PARTS_FORCE_GPT", BLKID_PARTS_FORCE_GPT);
PyModule_AddIntConstant (module, "PARTS_MAGIC", BLKID_PARTS_MAGIC);
#ifdef HAVE_BLKID_2_24
PyModule_AddIntConstant (module, "SUBLKS_BADCSUM", BLKID_SUBLKS_BADCSUM);
#endif
PyModule_AddIntConstant (module, "SUBLKS_DEFAULT", BLKID_SUBLKS_DEFAULT);
#ifdef HAVE_BLKID_2_39
PyModule_AddIntConstant (module, "SUBLKS_FSINFO", BLKID_SUBLKS_FSINFO);
#endif
PyModule_AddIntConstant (module, "SUBLKS_LABEL", BLKID_SUBLKS_LABEL);
PyModule_AddIntConstant (module, "SUBLKS_LABELRAW", BLKID_SUBLKS_LABELRAW);
PyModule_AddIntConstant (module, "SUBLKS_MAGIC", BLKID_SUBLKS_MAGIC);
PyModule_AddIntConstant (module, "SUBLKS_SECTYPE", BLKID_SUBLKS_SECTYPE);
PyModule_AddIntConstant (module, "SUBLKS_TYPE", BLKID_SUBLKS_TYPE);
PyModule_AddIntConstant (module, "SUBLKS_USAGE", BLKID_SUBLKS_USAGE);
PyModule_AddIntConstant (module, "SUBLKS_UUID", BLKID_SUBLKS_UUID);
PyModule_AddIntConstant (module, "SUBLKS_UUIDRAW", BLKID_SUBLKS_UUIDRAW);
PyModule_AddIntConstant (module, "SUBLKS_VERSION", BLKID_SUBLKS_VERSION);
PyModule_AddIntConstant (module, "USAGE_CRYPTO", BLKID_USAGE_CRYPTO);
PyModule_AddIntConstant (module, "USAGE_FILESYSTEM", BLKID_USAGE_FILESYSTEM);
PyModule_AddIntConstant (module, "USAGE_OTHER", BLKID_USAGE_OTHER);
PyModule_AddIntConstant (module, "USAGE_RAID", BLKID_USAGE_RAID);
Py_INCREF (&ProbeType);
if (PyModule_AddObject (module, "Probe", (PyObject *) &ProbeType) < 0) {
Py_DECREF (&ProbeType);
Py_DECREF (module);
return NULL;
}
Py_INCREF (&TopologyType);
if (PyModule_AddObject (module, "Topology", (PyObject *) &TopologyType) < 0) {
Py_DECREF (&ProbeType);
Py_DECREF (&TopologyType);
Py_DECREF (module);
return NULL;
}
Py_INCREF (&PartlistType);
if (PyModule_AddObject (module, "Partlist", (PyObject *) &PartlistType) < 0) {
Py_DECREF (&ProbeType);
Py_DECREF (&TopologyType);
Py_DECREF (&PartlistType);
Py_DECREF (module);
return NULL;
}
Py_INCREF (&ParttableType);
if (PyModule_AddObject (module, "Parttable", (PyObject *) &ParttableType) < 0) {
Py_DECREF (&ProbeType);
Py_DECREF (&TopologyType);
Py_DECREF (&PartlistType);
Py_DECREF (&ParttableType);
Py_DECREF (module);
return NULL;
}
Py_INCREF (&PartitionType);
if (PyModule_AddObject (module, "Partition", (PyObject *) &PartitionType) < 0) {
Py_DECREF (&ProbeType);
Py_DECREF (&TopologyType);
Py_DECREF (&PartlistType);
Py_DECREF (&ParttableType);
Py_DECREF (&PartitionType);
Py_DECREF (module);
return NULL;
}
Py_INCREF (&CacheType);
if (PyModule_AddObject (module, "Cache", (PyObject *) &CacheType) < 0) {
Py_DECREF (&ProbeType);
Py_DECREF (&TopologyType);
Py_DECREF (&PartlistType);
Py_DECREF (&ParttableType);
Py_DECREF (&PartitionType);
Py_DECREF (&CacheType);
Py_DECREF (module);
return NULL;
}
Py_INCREF (&DeviceType);
if (PyModule_AddObject (module, "Device", (PyObject *) &DeviceType) < 0) {
Py_DECREF (&ProbeType);
Py_DECREF (&TopologyType);
Py_DECREF (&PartlistType);
Py_DECREF (&ParttableType);
Py_DECREF (&PartitionType);
Py_DECREF (&CacheType);
Py_DECREF (&DeviceType);
Py_DECREF (module);
return NULL;
}
return module;
}

25
packages/pyblkid/opengnsys-pyblkid-0.3/src/pyblkid.h vendored 100644
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/*
* Copyright (C) 2020 Red Hat, Inc.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef PYBLKID_H
#define PYBLKID_H
#include <Python.h>
extern PyMODINIT_FUNC PyInit_blkid (void);
#endif /* PYBLKID_H */

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packages/pyblkid/opengnsys-pyblkid-0.3/src/topology.c vendored 100644
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/*
* Copyright (C) 2020 Red Hat, Inc.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "topology.h"
#include <blkid/blkid.h>
#define UNUSED __attribute__((unused))
PyObject *Topology_new (PyTypeObject *type, PyObject *args UNUSED, PyObject *kwargs UNUSED) {
TopologyObject *self = (TopologyObject*) type->tp_alloc (type, 0);
return (PyObject *) self;
}
int Topology_init (TopologyObject *self UNUSED, PyObject *args UNUSED, PyObject *kwargs UNUSED) {
return 0;
}
void Topology_dealloc (TopologyObject *self) {
Py_TYPE (self)->tp_free ((PyObject *) self);
}
PyObject *_Topology_get_topology_object (blkid_probe probe) {
TopologyObject *result = NULL;
blkid_topology topology = NULL;
if (!probe) {
PyErr_SetString(PyExc_RuntimeError, "internal error");
return NULL;
}
topology = blkid_probe_get_topology (probe);
if (!topology) {
PyErr_SetString (PyExc_RuntimeError, "Failed to get topology");
return NULL;
}
result = PyObject_New (TopologyObject, &TopologyType);
if (!result) {
PyErr_SetString (PyExc_MemoryError, "Failed to create a new Topology object");
return NULL;
}
Py_INCREF (result);
result->topology = topology;
return (PyObject *) result;
}
static PyObject *Topology_get_alignment_offset (TopologyObject *self, PyObject *Py_UNUSED (ignored)) {
unsigned long alignment_offset = blkid_topology_get_alignment_offset (self->topology);
return PyLong_FromUnsignedLong (alignment_offset);
}
static PyObject *Topology_get_logical_sector_size (TopologyObject *self, PyObject *Py_UNUSED (ignored)) {
unsigned long logical_sector_size = blkid_topology_get_logical_sector_size (self->topology);
return PyLong_FromUnsignedLong (logical_sector_size);
}
static PyObject *Topology_get_minimum_io_size (TopologyObject *self, PyObject *Py_UNUSED (ignored)) {
unsigned long minimum_io_size = blkid_topology_get_minimum_io_size (self->topology);
return PyLong_FromUnsignedLong (minimum_io_size);
}
static PyObject *Topology_get_optimal_io_size (TopologyObject *self, PyObject *Py_UNUSED (ignored)) {
unsigned long optimal_io_size = blkid_topology_get_optimal_io_size (self->topology);
return PyLong_FromUnsignedLong (optimal_io_size);
}
static PyObject *Topology_get_physical_sector_size (TopologyObject *self, PyObject *Py_UNUSED (ignored)) {
unsigned long physical_sector_size = blkid_topology_get_physical_sector_size (self->topology);
return PyLong_FromUnsignedLong (physical_sector_size);
}
#ifdef HAVE_BLKID_2_36
static PyObject *Topology_get_dax (TopologyObject *self, PyObject *Py_UNUSED (ignored)) {
int dax = blkid_topology_get_dax (self->topology);
if (dax == 1)
Py_RETURN_TRUE;
else
Py_RETURN_FALSE;
}
#endif
#ifdef HAVE_BLKID_2_39
static PyObject *Topology_get_diskseq (TopologyObject *self, PyObject *Py_UNUSED (ignored)) {
uint64_t diskseq = blkid_topology_get_diskseq (self->topology);
return PyLong_FromUnsignedLongLong (diskseq);
}
#endif
static PyGetSetDef Topology_getseters[] = {
{"alignment_offset", (getter) Topology_get_alignment_offset, NULL, "alignment offset in bytes or 0", NULL},
{"logical_sector_size", (getter) Topology_get_logical_sector_size, NULL, "logical sector size (BLKSSZGET ioctl) in bytes or 0", NULL},
{"minimum_io_size", (getter) Topology_get_minimum_io_size, NULL, "minimum io size in bytes or 0", NULL},
{"optimal_io_size", (getter) Topology_get_optimal_io_size, NULL, "optimal io size in bytes or 0", NULL},
{"physical_sector_size", (getter) Topology_get_physical_sector_size, NULL, "logical sector size (BLKSSZGET ioctl) in bytes or 0", NULL},
#ifdef HAVE_BLKID_2_36
{"dax", (getter) Topology_get_dax, NULL, "whether DAX is supported or not", NULL},
#endif
#ifdef HAVE_BLKID_2_39
{"diskseq", (getter) Topology_get_diskseq, NULL, "disk sequence number", NULL},
#endif
{NULL, NULL, NULL, NULL, NULL}
};
PyTypeObject TopologyType = {
PyVarObject_HEAD_INIT (NULL, 0)
.tp_name = "blkid.Topology",
.tp_basicsize = sizeof (TopologyObject),
.tp_itemsize = 0,
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_new = Topology_new,
.tp_dealloc = (destructor) Topology_dealloc,
.tp_init = (initproc) Topology_init,
.tp_getset = Topology_getseters,
};

38
packages/pyblkid/opengnsys-pyblkid-0.3/src/topology.h vendored 100644
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/*
* Copyright (C) 2020 Red Hat, Inc.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef TOPOLOGY_H
#define TOPOLOGY_H
#include <Python.h>
#include <blkid/blkid.h>
typedef struct {
PyObject_HEAD
blkid_topology topology;
} TopologyObject;
extern PyTypeObject TopologyType;
PyObject *Topology_new (PyTypeObject *type, PyObject *args, PyObject *kwargs);
int Topology_init (TopologyObject *self, PyObject *args, PyObject *kwargs);
void Topology_dealloc (TopologyObject *self);
PyObject *_Topology_get_topology_object (blkid_probe probe);
#endif /* TOPOLOGY_H */

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import os
import unittest
from . import utils
import blkid
class BlkidTestCase(unittest.TestCase):
test_image = "test.img.xz"
loop_dev = None
@classmethod
def setUpClass(cls):
test_dir = os.path.abspath(os.path.dirname(__file__))
cls.loop_dev = utils.loop_setup(os.path.join(test_dir, cls.test_image))
@classmethod
def tearDownClass(cls):
if cls.loop_dev:
utils.loop_teardown(cls.loop_dev)
def test_blkid(self):
self.assertTrue(blkid.known_fstype("ext4"))
self.assertFalse(blkid.known_fstype("not-a-filesystem"))
self.assertTrue(blkid.known_pttype("dos"))
self.assertFalse(blkid.known_fstype("not-a-partition-table"))
self.assertEqual(blkid.parse_version_string("2.16.0"), 2160)
code, version, date = blkid.get_library_version()
self.assertGreater(code, 0)
self.assertIsNotNone(version)
self.assertIsNotNone(date)
ttype, tvalue = blkid.parse_tag_string("NAME=test")
self.assertEqual(ttype, "NAME")
self.assertEqual(tvalue, "test")
size = blkid.get_dev_size(self.loop_dev)
self.assertEqual(size, 2097152) # test.img is 2 MiB
# dos should be always supported so we can use it here to test
if hasattr(blkid, "partition_types"):
types = blkid.partition_types()
self.assertIn("dos", types)
# ext4 should be always supported so we can use it here to test
supers = blkid.superblocks()
self.assertIn("ext4", supers)
def test_uevent(self):
with self.assertRaises(RuntimeError):
blkid.send_uevent("not-a-device", "change")
blkid.send_uevent(self.loop_dev, "change")
def test_devname(self):
sysfs_path = "/sys/block/%s/dev" % os.path.basename(self.loop_dev)
major_minor = utils.read_file(sysfs_path).strip()
major, minor = major_minor.split(":")
devno = os.makedev(int(major), int(minor))
devpath = blkid.devno_to_devname(devno)
self.assertEqual(devpath, self.loop_dev)
# we don't have a partition so let's just ask for the disk name and devno
(dname, ddevno) = blkid.devno_to_wholedisk(devno)
self.assertEqual(dname, os.path.basename(self.loop_dev))
self.assertEqual(ddevno, devno)
def test_safe_encode_string(self):
string = "aaaaaa"
safe_string = blkid.safe_string(string)
encoded_string = blkid.encode_string(string)
self.assertEqual(string, safe_string)
self.assertEqual(string, encoded_string)
string = "aa aaa"
safe_string = blkid.safe_string(string)
encoded_string = blkid.encode_string(string)
self.assertEqual(safe_string, "aa_aaa")
self.assertEqual(encoded_string, "aa\\x20aaa")
def test_tags(self):
device = blkid.evaluate_tag("LABEL", "test-ext3")
self.assertEqual(device, self.loop_dev)
device = blkid.evaluate_tag("LABEL", "definitely-not-a-valid-label")
self.assertIsNone(device)
device = blkid.evaluate_spec("LABEL=test-ext3")
self.assertEqual(device, self.loop_dev)
device = blkid.evaluate_spec("LABEL=definitely-not-a-valid-label")
self.assertIsNone(device)

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import os
import unittest
import tempfile
from . import utils
import blkid
@unittest.skipUnless(os.geteuid() == 0, "requires root access")
class CacheTestCase(unittest.TestCase):
test_image = "test.img.xz"
loop_dev = None
cache_file = None
@classmethod
def setUpClass(cls):
test_dir = os.path.abspath(os.path.dirname(__file__))
cls.loop_dev = utils.loop_setup(os.path.join(test_dir, cls.test_image))
_, cls.cache_file = tempfile.mkstemp()
@classmethod
def tearDownClass(cls):
if cls.loop_dev:
utils.loop_teardown(cls.loop_dev)
if cls.cache_file:
os.remove(cls.cache_file)
def test_cache(self):
cache = blkid.Cache(filename=self.cache_file)
cache.probe_all()
cache.probe_all(removable=True)
cache.gc()
device = cache.get_device(self.loop_dev)
self.assertIsNotNone(device)
self.assertEqual(device.devname, self.loop_dev)
device = cache.find_device("LABEL", "not-in-cache")
self.assertIsNone(device)
device = cache.find_device("LABEL", "test-ext3")
self.assertIsNotNone(device)
self.assertEqual(device.devname, self.loop_dev)
self.assertIsNotNone(device.tags)
self.assertIn("UUID", device.tags.keys())
self.assertEqual(device.tags["UUID"], "35f66dab-477e-4090-a872-95ee0e493ad6")
self.assertIn("LABEL", device.tags.keys())
self.assertEqual(device.tags["LABEL"], "test-ext3")
self.assertIn("TYPE", device.tags.keys())
self.assertEqual(device.tags["TYPE"], "ext3")
self.assertTrue(cache.devices)
self.assertIn(self.loop_dev, [d.devname for d in cache.devices])
device.verify()
self.assertIsNotNone(device)
self.assertEqual(device.devname, self.loop_dev)
# we don't have new devices, so just a sanity check
cache.probe_all(new_only=True)
if __name__ == "__main__":
unittest.main()

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import os
import unittest
from . import utils
import blkid
@unittest.skipUnless(os.geteuid() == 0, "requires root access")
class PartitionsTestCase(unittest.TestCase):
test_image = "gpt.img.xz"
loop_dev = None
@classmethod
def setUpClass(cls):
test_dir = os.path.abspath(os.path.dirname(__file__))
cls.loop_dev = utils.loop_setup(os.path.join(test_dir, cls.test_image))
@classmethod
def tearDownClass(cls):
if cls.loop_dev:
utils.loop_teardown(cls.loop_dev)
def test_partlist(self):
pr = blkid.Probe()
pr.set_device(self.loop_dev)
pr.enable_partitions(True)
ret = pr.do_safeprobe()
self.assertTrue(ret)
plist = pr.partitions
self.assertEqual(plist.numof_partitions, 5)
def test_partitions_filter(self):
pr = blkid.Probe()
pr.set_device(self.loop_dev)
pr.enable_partitions(True)
ret = pr.do_safeprobe()
self.assertTrue(ret)
self.assertEqual(pr.partitions.numof_partitions, 5)
pr.filter_partitions_type(blkid.FLTR_ONLYIN, ["gpt"])
ret = pr.do_safeprobe()
self.assertTrue(ret)
self.assertEqual(pr.partitions.numof_partitions, 5)
pr.filter_partitions_type(blkid.FLTR_ONLYIN, ["gpt", "dos"])
ret = pr.do_safeprobe()
self.assertTrue(ret)
self.assertEqual(pr.partitions.numof_partitions, 5)
pr.filter_partitions_type(blkid.FLTR_NOTIN, ["gpt"])
ret = pr.do_safeprobe()
self.assertFalse(ret)
with self.assertRaises(RuntimeError):
pr.partitions
pr.invert_partitions_filter()
ret = pr.do_safeprobe()
self.assertTrue(ret)
self.assertEqual(pr.partitions.numof_partitions, 5)
pr.filter_partitions_type(blkid.FLTR_NOTIN, ["gpt"])
ret = pr.do_safeprobe()
self.assertFalse(ret)
with self.assertRaises(RuntimeError):
pr.partitions
pr.reset_partitions_filter()
ret = pr.do_safeprobe()
self.assertTrue(ret)
self.assertEqual(pr.partitions.numof_partitions, 5)
def test_partition_table(self):
pr = blkid.Probe()
pr.set_device(self.loop_dev)
pr.enable_partitions(True)
ret = pr.do_safeprobe()
self.assertTrue(ret)
self.assertIsNotNone(pr.partitions)
self.assertIsNotNone(pr.partitions.table)
self.assertEqual(pr.partitions.table.type, "gpt")
self.assertEqual(pr.partitions.table.id, "dd27f98d-7519-4c9e-8041-f2bfa7b1ef61")
self.assertEqual(pr.partitions.table.offset, 512)
nested = pr.partitions.table.get_parent()
self.assertIsNone(nested)
def test_partition(self):
pr = blkid.Probe()
pr.set_device(self.loop_dev)
pr.enable_partitions(True)
ret = pr.do_safeprobe()
self.assertTrue(ret)
self.assertIsNotNone(pr.partitions)
part = pr.partitions.get_partition(0)
self.assertEqual(part.type, 0)
self.assertEqual(part.type_string, "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7")
self.assertEqual(part.uuid, "1dcf10bc-637e-4c52-8203-087ae10a820b")
self.assertTrue(part.is_primary)
self.assertFalse(part.is_extended)
self.assertFalse(part.is_logical)
self.assertEqual(part.name, "ThisIsName")
self.assertEqual(part.flags, 0)
self.assertEqual(part.partno, 1)
self.assertEqual(part.start, 34)
self.assertEqual(part.size, 2014)
if not hasattr(pr.partitions, "get_partition_by_partno"):
return
part = pr.partitions.get_partition_by_partno(1)
self.assertEqual(part.uuid, "1dcf10bc-637e-4c52-8203-087ae10a820b")
# no nested partition table here, just the gpt
table = part.table
self.assertEqual(table.type, "gpt")
# devno_to_part
disk_name = os.path.basename(self.loop_dev)
sysfs_path = "/sys/block/%s/%s/dev" % (disk_name, disk_name + "p" + str(part.partno))
major_minor = utils.read_file(sysfs_path).strip()
major, minor = major_minor.split(":")
devno = os.makedev(int(major), int(minor))
part = pr.partitions.devno_to_partition(devno)
self.assertEqual(part.uuid, "1dcf10bc-637e-4c52-8203-087ae10a820b")

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import os
import unittest
from . import utils
import blkid
@unittest.skipUnless(os.geteuid() == 0, "requires root access")
class ProbeTestCase(unittest.TestCase):
test_image = "test.img.xz"
loop_dev = None
@classmethod
def setUpClass(cls):
test_dir = os.path.abspath(os.path.dirname(__file__))
cls.loop_dev = utils.loop_setup(os.path.join(test_dir, cls.test_image))
cls.ver_code, _version, _date = blkid.get_library_version()
@classmethod
def tearDownClass(cls):
if cls.loop_dev:
utils.loop_teardown(cls.loop_dev)
def test_probe(self):
pr = blkid.Probe()
pr.set_device(self.loop_dev)
self.assertEqual(pr.offset, 0)
self.assertEqual(pr.sectors, 4096)
self.assertEqual(pr.sector_size, 512)
self.assertEqual(pr.size, pr.sectors * pr.sector_size)
self.assertGreater(pr.fd, 0)
self.assertNotEqual(pr.devno, 0)
self.assertNotEqual(pr.wholedisk_devno, 0)
self.assertTrue(pr.is_wholedisk)
if self.ver_code >= 2300:
pr.sector_size = 4096
self.assertEqual(pr.sector_size, 4096)
else:
with self.assertRaises(AttributeError):
pr.sector_size = 4096
pr.reset_probe()
def test_probing(self):
pr = blkid.Probe()
with self.assertRaises(ValueError):
pr.do_probe()
pr.set_device(self.loop_dev)
pr.enable_superblocks(True)
pr.set_superblocks_flags(blkid.SUBLKS_TYPE | blkid.SUBLKS_USAGE | blkid.SUBLKS_MAGIC)
ret = pr.do_probe()
self.assertTrue(ret)
usage = pr.lookup_value("USAGE")
self.assertEqual(usage, b"filesystem")
pr.step_back()
ret = pr.do_probe()
self.assertTrue(ret)
usage = pr.lookup_value("USAGE")
self.assertEqual(usage, b"filesystem")
if hasattr(pr, "reset_buffers"):
pr.reset_buffers()
pr.step_back()
ret = pr.do_probe()
self.assertTrue(ret)
usage = pr.lookup_value("USAGE")
self.assertEqual(usage, b"filesystem")
if hasattr(pr, "hide_range"):
offset = pr.lookup_value("SBMAGIC_OFFSET")
magic = pr.lookup_value("SBMAGIC")
pr.hide_range(int(offset), len(magic))
pr.step_back()
ret = pr.do_probe()
self.assertFalse(ret)
with self.assertRaises(RuntimeError):
usage = pr.lookup_value("USAGE")
def test_safe_probing(self):
pr = blkid.Probe()
pr.set_device(self.loop_dev)
pr.enable_superblocks(True)
pr.set_superblocks_flags(blkid.SUBLKS_TYPE | blkid.SUBLKS_USAGE | blkid.SUBLKS_UUID)
# not probed yet, len should be 0
self.assertEqual(len(pr), 0)
self.assertFalse(pr.keys())
self.assertFalse(pr.values())
self.assertFalse(pr.items())
ret = pr.do_safeprobe()
self.assertTrue(ret)
# three or more items should be in the probe now
self.assertGreaterEqual(len(pr), 3)
usage = pr.lookup_value("USAGE")
self.assertEqual(usage, b"filesystem")
usage = pr["USAGE"]
self.assertEqual(usage, b"filesystem")
fstype = pr.lookup_value("TYPE")
self.assertEqual(fstype, b"ext3")
fstype = pr["TYPE"]
self.assertEqual(fstype, b"ext3")
fsuuid = pr.lookup_value("UUID")
self.assertEqual(fsuuid, b"35f66dab-477e-4090-a872-95ee0e493ad6")
fsuuid = pr["UUID"]
self.assertEqual(fsuuid, b"35f66dab-477e-4090-a872-95ee0e493ad6")
keys = pr.keys()
self.assertIn("USAGE", keys)
self.assertIn("TYPE", keys)
self.assertIn("UUID", keys)
values = pr.values()
self.assertIn("filesystem", values)
self.assertIn("ext3", values)
self.assertIn("35f66dab-477e-4090-a872-95ee0e493ad6", values)
items = pr.items()
self.assertIn(("USAGE", "filesystem"), items)
self.assertIn(("TYPE", "ext3"), items)
self.assertIn(("UUID", "35f66dab-477e-4090-a872-95ee0e493ad6"), items)
def test_probe_filter_type(self):
pr = blkid.Probe()
pr.set_device(self.loop_dev)
pr.enable_superblocks(True)
pr.set_superblocks_flags(blkid.SUBLKS_TYPE | blkid.SUBLKS_USAGE | blkid.SUBLKS_UUID)
pr.filter_superblocks_type(blkid.FLTR_ONLYIN, ["ext3", "ext4"])
ret = pr.do_safeprobe()
self.assertTrue(ret)
fstype = pr.lookup_value("TYPE")
self.assertEqual(fstype, b"ext3")
pr.filter_superblocks_type(blkid.FLTR_NOTIN, ["ext3", "ext4"])
ret = pr.do_safeprobe()
self.assertFalse(ret)
with self.assertRaises(RuntimeError):
fstype = pr.lookup_value("TYPE")
pr.filter_superblocks_type(blkid.FLTR_NOTIN, ["vfat", "ntfs"])
ret = pr.do_safeprobe()
self.assertTrue(ret)
fstype = pr.lookup_value("TYPE")
self.assertEqual(fstype, b"ext3")
# invert the filter
pr.invert_superblocks_filter()
ret = pr.do_safeprobe()
self.assertFalse(ret)
with self.assertRaises(RuntimeError):
fstype = pr.lookup_value("TYPE")
# reset to default
pr.reset_superblocks_filter()
ret = pr.do_safeprobe()
self.assertTrue(ret)
fstype = pr.lookup_value("TYPE")
self.assertEqual(fstype, b"ext3")
def test_probe_filter_usage(self):
pr = blkid.Probe()
pr.set_device(self.loop_dev)
pr.enable_superblocks(True)
pr.set_superblocks_flags(blkid.SUBLKS_TYPE | blkid.SUBLKS_USAGE | blkid.SUBLKS_UUID)
pr.filter_superblocks_usage(blkid.FLTR_ONLYIN, blkid.USAGE_FILESYSTEM)
pr.do_safeprobe()
usage = pr.lookup_value("USAGE")
self.assertEqual(usage, b"filesystem")
pr.filter_superblocks_usage(blkid.FLTR_NOTIN, blkid.USAGE_FILESYSTEM | blkid.USAGE_CRYPTO)
pr.do_safeprobe()
with self.assertRaises(RuntimeError):
usage = pr.lookup_value("USAGE")
pr.filter_superblocks_usage(blkid.FLTR_NOTIN, blkid.USAGE_RAID | blkid.USAGE_CRYPTO)
pr.do_safeprobe()
usage = pr.lookup_value("USAGE")
self.assertEqual(usage, b"filesystem")
# invert the filter
pr.invert_superblocks_filter()
pr.do_safeprobe()
with self.assertRaises(RuntimeError):
usage = pr.lookup_value("USAGE")
# reset to default
pr.reset_superblocks_filter()
pr.do_safeprobe()
usage = pr.lookup_value("USAGE")
self.assertEqual(usage, b"filesystem")
def test_topology(self):
pr = blkid.Probe()
pr.set_device(self.loop_dev)
pr.enable_superblocks(True)
pr.set_superblocks_flags(blkid.SUBLKS_TYPE | blkid.SUBLKS_USAGE | blkid.SUBLKS_UUID)
pr.enable_topology(True)
ret = pr.do_safeprobe()
self.assertTrue(ret)
self.assertIsNotNone(pr.topology)
self.assertEqual(pr.topology.alignment_offset, 0)
self.assertEqual(pr.topology.logical_sector_size, 512)
self.assertEqual(pr.topology.minimum_io_size, 512)
self.assertEqual(pr.topology.optimal_io_size, 0)
self.assertEqual(pr.topology.physical_sector_size, 512)
if self.ver_code >= 2360:
self.assertFalse(pr.topology.dax)
else:
with self.assertRaises(AttributeError):
self.assertIsNone(pr.topology.dax)
@unittest.skipUnless(os.geteuid() == 0, "requires root access")
class WipeTestCase(unittest.TestCase):
test_image = "test.img.xz"
loop_dev = None
def setUp(self):
test_dir = os.path.abspath(os.path.dirname(__file__))
self.loop_dev = utils.loop_setup(os.path.join(test_dir, self.test_image))
def tearDown(self):
test_dir = os.path.abspath(os.path.dirname(__file__))
if self.loop_dev:
utils.loop_teardown(self.loop_dev,
filename=os.path.join(test_dir, self.test_image))
def test_wipe(self):
pr = blkid.Probe()
pr.set_device(self.loop_dev, flags=os.O_RDWR)
pr.enable_superblocks(True)
pr.set_superblocks_flags(blkid.SUBLKS_TYPE | blkid.SUBLKS_USAGE | blkid.SUBLKS_MAGIC)
while pr.do_probe():
pr.do_wipe(False)
pr.reset_probe()
ret = pr.do_probe()
self.assertFalse(ret)
if __name__ == "__main__":
unittest.main()

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import os
import subprocess
def run_command(command):
res = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
out, err = res.communicate()
if res.returncode != 0:
output = out.decode().strip() + "\n\n" + err.decode().strip()
else:
output = out.decode().strip()
return (res.returncode, output)
def read_file(filename):
with open(filename, "r") as f:
content = f.read()
return content
def loop_setup(filename):
if filename.endswith(".xz") and not os.path.exists(filename[:-3]):
ret, out = run_command("xz --decompress --keep %s" % filename)
if ret != 0:
raise RuntimeError("Failed to decompress file %s: %s" % (filename, out))
filename = filename[:-3]
ret, out = run_command("losetup --show --partscan -f %s" % filename)
if ret != 0:
raise RuntimeError("Failed to create loop device from %s: %s" % (filename, out))
return out
def loop_teardown(loopdev, filename=None):
ret, out = run_command("losetup -d %s" % loopdev)
if ret != 0:
raise RuntimeError("Failed to detach loop device %s: %s" % (loopdev, out))
# remove the extracted test file
if filename and filename.endswith(".xz") and os.path.exists(filename[:-3]):
os.remove(filename[:-3])

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