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

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