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scripts/qmp/qom-fuse: Port to current Python module fuse 

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200723142738.1868568-3-armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
This commit is contained in:
Markus Armbruster 2020-07-23 16:27:37 +02:00
parent 67abc3ddea
commit f713ed4f7e
1 changed files with 47 additions and 46 deletions
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93
scripts/qmp/qom-fuse
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@ -3,16 +3,18 @@
# QEMU Object Model test tools
#
# Copyright IBM, Corp. 2012
# Copyright (C) 2020 Red Hat, Inc.
#
# Authors:
# Anthony Liguori <aliguori@us.ibm.com>
# Markus Armbruster <armbru@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2 or later. See
# the COPYING file in the top-level directory.
##
import fuse, stat
from fuse import Fuse
from fuse import FUSE, FuseOSError, Operations
import os, posix, sys
from errno import *
@ -21,9 +23,8 @@ from qemu.qmp import QEMUMonitorProtocol
fuse.fuse_python_api = (0, 2)
class QOMFS(Fuse):
def __init__(self, qmp, *args, **kwds):
Fuse.__init__(self, *args, **kwds)
class QOMFS(Operations):
def __init__(self, qmp):
self.qmp = qmp
self.qmp.connect()
self.ino_map = {}
@ -65,21 +66,21 @@ class QOMFS(Fuse):
except:
return False
def read(self, path, length, offset):
def read(self, path, length, offset, fh):
if not self.is_property(path):
return -ENOENT
path, prop = path.rsplit('/', 1)
try:
data = str(self.qmp.command('qom-get', path=path, property=prop))
data = self.qmp.command('qom-get', path=path, property=prop)
data += '\n' # make values shell friendly
except:
return -EPERM
raise FuseOSError(EPERM)
if offset > len(data):
return ''
return str(data[offset:][:length])
return bytes(data[offset:][:length], encoding='utf-8')
def readlink(self, path):
if not self.is_link(path):
@ -89,52 +90,52 @@ class QOMFS(Fuse):
return prefix + str(self.qmp.command('qom-get', path=path,
property=prop))
def getattr(self, path):
def getattr(self, path, fh=None):
if self.is_link(path):
value = posix.stat_result((0o755 | stat.S_IFLNK,
self.get_ino(path),
0,
2,
1000,
1000,
4096,
0,
0,
0))
value = { 'st_mode': 0o755 | stat.S_IFLNK,
'st_ino': self.get_ino(path),
'st_dev': 0,
'st_nlink': 2,
'st_uid': 1000,
'st_gid': 1000,
'st_size': 4096,
'st_atime': 0,
'st_mtime': 0,
'st_ctime': 0 }
elif self.is_object(path):
value = posix.stat_result((0o755 | stat.S_IFDIR,
self.get_ino(path),
0,
2,
1000,
1000,
4096,
0,
0,
0))
value = { 'st_mode': 0o755 | stat.S_IFDIR,
'st_ino': self.get_ino(path),
'st_dev': 0,
'st_nlink': 2,
'st_uid': 1000,
'st_gid': 1000,
'st_size': 4096,
'st_atime': 0,
'st_mtime': 0,
'st_ctime': 0 }
elif self.is_property(path):
value = posix.stat_result((0o644 | stat.S_IFREG,
self.get_ino(path),
0,
1,
1000,
1000,
4096,
0,
0,
0))
value = { 'st_mode': 0o644 | stat.S_IFREG,
'st_ino': self.get_ino(path),
'st_dev': 0,
'st_nlink': 1,
'st_uid': 1000,
'st_gid': 1000,
'st_size': 4096,
'st_atime': 0,
'st_mtime': 0,
'st_ctime': 0 }
else:
value = -ENOENT
raise FuseOSError(ENOENT)
return value
def readdir(self, path, offset):
yield fuse.Direntry('.')
yield fuse.Direntry('..')
def readdir(self, path, fh):
yield '.'
yield '..'
for item in self.qmp.command('qom-list', path=path):
yield fuse.Direntry(str(item['name']))
yield str(item['name'])
if __name__ == '__main__':
import os
fs = QOMFS(QEMUMonitorProtocol(os.environ['QMP_SOCKET']))
fs.main(sys.argv)
fuse = FUSE(QOMFS(QEMUMonitorProtocol(os.environ['QMP_SOCKET'])),
sys.argv[1], foreground=True)