#!/usr/bin/python ## # QEMU Object Model test tools # # Copyright IBM, Corp. 2012 # # Authors: # Anthony Liguori <aliguori@us.ibm.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 import os, posix from errno import * from qmp import QEMUMonitorProtocol fuse.fuse_python_api = (0, 2) class QOMFS(Fuse): def __init__(self, qmp, *args, **kwds): Fuse.__init__(self, *args, **kwds) self.qmp = qmp self.qmp.connect() self.ino_map = {} self.ino_count = 1 def get_ino(self, path): if self.ino_map.has_key(path): return self.ino_map[path] self.ino_map[path] = self.ino_count self.ino_count += 1 return self.ino_map[path] def is_object(self, path): try: items = self.qmp.command('qom-list', path=path) return True except: return False def is_property(self, path): try: path, prop = path.rsplit('/', 1) for item in self.qmp.command('qom-list', path=path): if item['name'] == prop: return True return False except: return False def is_link(self, path): try: path, prop = path.rsplit('/', 1) for item in self.qmp.command('qom-list', path=path): if item['name'] == prop: if item['type'].startswith('link<'): return True return False return False except: return False def read(self, path, length, offset): 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 += '\n' # make values shell friendly except: return -EPERM if offset > len(data): return '' return str(data[offset:][:length]) def readlink(self, path): if not self.is_link(path): return False path, prop = path.rsplit('/', 1) prefix = '/'.join(['..'] * (len(path.split('/')) - 1)) return prefix + str(self.qmp.command('qom-get', path=path, property=prop)) def getattr(self, path): if self.is_link(path): value = posix.stat_result((0755 | stat.S_IFLNK, self.get_ino(path), 0, 2, 1000, 1000, 4096, 0, 0, 0)) elif self.is_object(path): value = posix.stat_result((0755 | stat.S_IFDIR, self.get_ino(path), 0, 2, 1000, 1000, 4096, 0, 0, 0)) elif self.is_property(path): value = posix.stat_result((0644 | stat.S_IFREG, self.get_ino(path), 0, 1, 1000, 1000, 4096, 0, 0, 0)) else: value = -ENOENT return value def readdir(self, path, offset): yield fuse.Direntry('.') yield fuse.Direntry('..') for item in self.qmp.command('qom-list', path=path): yield fuse.Direntry(str(item['name'])) if __name__ == '__main__': import sys, os fs = QOMFS(QEMUMonitorProtocol(os.environ['QMP_SOCKET'])) fs.main(sys.argv)