async def setxattr(self, id_, name, value, ctx):
log.debug('started with %d, %r, %r', id_, name, value)
# Handle S3QL commands
if id_ == CTRL_INODE:
if name == b's3ql_flushcache!':
self.inodes.flush()
await self.cache.flush()
elif name == b's3ql_dropcache!':
self.inodes.drop()
await self.cache.drop()
elif name == b'copy':
try:
tup = parse_literal(value, (int, int))
except ValueError:
log.warning('Received malformed command via control inode')
raise FUSEError.EINVAL()
await self.copy_tree(*tup)
elif name == b'upload-meta':
if self.upload_event is not None:
self.inodes.flush()
self.upload_event.set()
else:
raise FUSEError(errno.ENOTTY)
elif name == b'lock':
try:
id_ = parse_literal(value, int)
except ValueError:
log.warning('Received malformed command via control inode')
raise FUSEError.EINVAL()
await self.lock_tree(id_)
elif name == b'rmtree':
try:
tup = parse_literal(value, (int, bytes))
except ValueError:
log.warning('Received malformed command via control inode')
raise FUSEError.EINVAL()
await self.remove_tree(*tup)
elif name == b'logging':
try:
(lvl, modules) = parse_literal(value, (int, str))
except (ValueError, KeyError):
log.warning('Received malformed command via control inode')
raise FUSEError.EINVAL()
update_logging(lvl, modules.split(',') if modules else None)
elif name == b'cachesize':
try:
self.cache.cache.max_size = parse_literal(value, int)
except ValueError:
log.warning('Received malformed command via control inode')
raise FUSEError.EINVAL()
log.debug('updated cache size to %d bytes',
self.cache.cache.max_size)
else:
log.warning('Received unknown command via control inode')
raise FUSEError(errno.EINVAL)
# http://code.google.com/p/s3ql/issues/detail?id=385
elif name in (b'system.posix_acl_access', b'system.posix_acl_default'):
raise FUSEError(ACL_ERRNO)
else:
if self.failsafe or self.inodes[id_].locked:
raise FUSEError(errno.EPERM)
if len(value) > deltadump.MAX_BLOB_SIZE:
raise FUSEError(errno.EINVAL)
self.db.execute(
'INSERT OR REPLACE INTO ext_attributes (inode, name_id, value) '
'VALUES(?, ?, ?)', (id_, self._add_name(name), value))
self.inodes[id_].ctime_ns = time_ns()
