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3a14019e82
path, prop = "type".rsplit('/', 1) sets path to "", which doesn't
work. Correct to "/".
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200723142738.1868568-4-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
148 lines
4.4 KiB
Python
Executable File
148 lines
4.4 KiB
Python
Executable File
#!/usr/bin/env python3
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##
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# QEMU Object Model test tools
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#
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# Copyright IBM, Corp. 2012
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# Copyright (C) 2020 Red Hat, Inc.
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#
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# Authors:
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# Anthony Liguori <aliguori@us.ibm.com>
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# Markus Armbruster <armbru@redhat.com>
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#
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# This work is licensed under the terms of the GNU GPL, version 2 or later. See
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# the COPYING file in the top-level directory.
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##
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import fuse, stat
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from fuse import FUSE, FuseOSError, Operations
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import os, posix, sys
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from errno import *
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sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
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from qemu.qmp import QEMUMonitorProtocol
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fuse.fuse_python_api = (0, 2)
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class QOMFS(Operations):
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def __init__(self, qmp):
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self.qmp = qmp
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self.qmp.connect()
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self.ino_map = {}
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self.ino_count = 1
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def get_ino(self, path):
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if path in self.ino_map:
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return self.ino_map[path]
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self.ino_map[path] = self.ino_count
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self.ino_count += 1
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return self.ino_map[path]
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def is_object(self, path):
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try:
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items = self.qmp.command('qom-list', path=path)
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return True
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except:
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return False
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def is_property(self, path):
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path, prop = path.rsplit('/', 1)
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if path == '':
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path = '/'
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try:
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for item in self.qmp.command('qom-list', path=path):
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if item['name'] == prop:
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return True
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return False
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except:
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return False
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def is_link(self, path):
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path, prop = path.rsplit('/', 1)
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if path == '':
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path = '/'
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try:
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for item in self.qmp.command('qom-list', path=path):
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if item['name'] == prop:
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if item['type'].startswith('link<'):
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return True
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return False
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return False
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except:
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return False
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def read(self, path, length, offset, fh):
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if not self.is_property(path):
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return -ENOENT
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path, prop = path.rsplit('/', 1)
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if path == '':
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path = '/'
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try:
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data = self.qmp.command('qom-get', path=path, property=prop)
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data += '\n' # make values shell friendly
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except:
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raise FuseOSError(EPERM)
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if offset > len(data):
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return ''
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return bytes(data[offset:][:length], encoding='utf-8')
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def readlink(self, path):
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if not self.is_link(path):
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return False
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path, prop = path.rsplit('/', 1)
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prefix = '/'.join(['..'] * (len(path.split('/')) - 1))
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return prefix + str(self.qmp.command('qom-get', path=path,
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property=prop))
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def getattr(self, path, fh=None):
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if self.is_link(path):
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value = { 'st_mode': 0o755 | stat.S_IFLNK,
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'st_ino': self.get_ino(path),
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'st_dev': 0,
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'st_nlink': 2,
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'st_uid': 1000,
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'st_gid': 1000,
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'st_size': 4096,
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'st_atime': 0,
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'st_mtime': 0,
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'st_ctime': 0 }
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elif self.is_object(path):
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value = { 'st_mode': 0o755 | stat.S_IFDIR,
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'st_ino': self.get_ino(path),
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'st_dev': 0,
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'st_nlink': 2,
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'st_uid': 1000,
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'st_gid': 1000,
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'st_size': 4096,
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'st_atime': 0,
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'st_mtime': 0,
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'st_ctime': 0 }
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elif self.is_property(path):
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value = { 'st_mode': 0o644 | stat.S_IFREG,
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'st_ino': self.get_ino(path),
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'st_dev': 0,
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'st_nlink': 1,
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'st_uid': 1000,
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'st_gid': 1000,
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'st_size': 4096,
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'st_atime': 0,
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'st_mtime': 0,
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'st_ctime': 0 }
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else:
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raise FuseOSError(ENOENT)
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return value
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def readdir(self, path, fh):
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yield '.'
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yield '..'
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for item in self.qmp.command('qom-list', path=path):
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yield str(item['name'])
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if __name__ == '__main__':
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import os
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fuse = FUSE(QOMFS(QEMUMonitorProtocol(os.environ['QMP_SOCKET'])),
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sys.argv[1], foreground=True)
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