1 # Copyright (c) 2012 Nicira, Inc.
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at:
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
21 import ovs.unixctl.client
26 def connect_to_target(target):
27 error, str_result = ovs.unixctl.socket_name_from_target(target)
29 ovs.util.ovs_fatal(error, str_result)
31 socket_name = str_result
33 error, client = ovs.unixctl.client.UnixctlClient.create(socket_name)
35 ovs.util.ovs_fatal(error, "cannot connect to \"%s\"" % socket_name)
41 parser = argparse.ArgumentParser(description="Python Implementation of"
43 parser.add_argument("-t", "--target", default="ovs-vswitchd",
44 help="pidfile or socket to contact")
46 parser.add_argument("command", metavar="COMMAND",
47 help="Command to run.")
48 parser.add_argument("argv", metavar="ARG", nargs="*",
49 help="Arguments to the command.")
50 parser.add_argument("-T", "--timeout", metavar="SECS",
51 help="wait at most SECS seconds for a response")
52 args = parser.parse_args()
55 signal.alarm(int(args.timeout))
59 client = connect_to_target(target)
60 err_no, error, result = client.transact(args.command, args.argv)
64 ovs.util.ovs_fatal(err_no, "%s: transaction error" % target)
65 elif error is not None:
66 sys.stderr.write(error)
67 ovs.util.ovs_error(0, "%s: server returned an error" % target)
70 assert result is not None
71 sys.stdout.write(result)
74 if __name__ == '__main__':