/usr/src/openvswitch-1.4.0/tests/test-jsonrpc.py is in openvswitch-datapath-dkms 1.4.0-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 | # Copyright (c) 2009, 2010, 2011 Nicira Networks
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import argparse
import errno
import os
import sys
import ovs.daemon
import ovs.json
import ovs.jsonrpc
import ovs.poller
import ovs.stream
def handle_rpc(rpc, msg):
done = False
reply = None
if msg.type == ovs.jsonrpc.Message.T_REQUEST:
if msg.method == "echo":
reply = ovs.jsonrpc.Message.create_reply(msg.params, msg.id)
else:
reply = ovs.jsonrpc.Message.create_error(
{"error": "unknown method"}, msg.id)
sys.stderr.write("unknown request %s" % msg.method)
elif msg.type == ovs.jsonrpc.Message.T_NOTIFY:
if msg.method == "shutdown":
done = True
else:
rpc.error(errno.ENOTTY)
sys.stderr.write("unknown notification %s" % msg.method)
else:
rpc.error(errno.EPROTO)
sys.stderr.write("unsolicited JSON-RPC reply or error\n")
if reply:
rpc.send(reply)
return done
def do_listen(name):
error, pstream = ovs.stream.PassiveStream.open(name)
if error:
sys.stderr.write("could not listen on \"%s\": %s\n"
% (name, os.strerror(error)))
sys.exit(1)
ovs.daemon.daemonize()
rpcs = []
done = False
while True:
# Accept new connections.
error, stream = pstream.accept()
if stream:
rpcs.append(ovs.jsonrpc.Connection(stream))
elif error != errno.EAGAIN:
sys.stderr.write("PassiveStream.accept() failed\n")
sys.exit(1)
# Service existing connections.
dead_rpcs = []
for rpc in rpcs:
rpc.run()
error = 0
if not rpc.get_backlog():
error, msg = rpc.recv()
if not error:
if handle_rpc(rpc, msg):
done = True
error = rpc.get_status()
if error:
rpc.close()
dead_rpcs.append(rpc)
rpcs = [rpc for rpc in rpcs if not rpc in dead_rpcs]
if done and not rpcs:
break
poller = ovs.poller.Poller()
pstream.wait(poller)
for rpc in rpcs:
rpc.wait(poller)
if not rpc.get_backlog():
rpc.recv_wait(poller)
poller.block()
pstream.close()
def do_request(name, method, params_string):
params = ovs.json.from_string(params_string)
msg = ovs.jsonrpc.Message.create_request(method, params)
s = msg.is_valid()
if s:
sys.stderr.write("not a valid JSON-RPC request: %s\n" % s)
sys.exit(1)
error, stream = ovs.stream.Stream.open_block(ovs.stream.Stream.open(name))
if error:
sys.stderr.write("could not open \"%s\": %s\n"
% (name, os.strerror(error)))
sys.exit(1)
rpc = ovs.jsonrpc.Connection(stream)
error = rpc.send(msg)
if error:
sys.stderr.write("could not send request: %s\n" % os.strerror(error))
sys.exit(1)
error, msg = rpc.recv_block()
if error:
sys.stderr.write("error waiting for reply: %s\n" % os.strerror(error))
sys.exit(1)
print ovs.json.to_string(msg.to_json())
rpc.close()
def do_notify(name, method, params_string):
params = ovs.json.from_string(params_string)
msg = ovs.jsonrpc.Message.create_notify(method, params)
s = msg.is_valid()
if s:
sys.stderr.write("not a valid JSON-RPC notification: %s\n" % s)
sys.exit(1)
error, stream = ovs.stream.Stream.open_block(ovs.stream.Stream.open(name))
if error:
sys.stderr.write("could not open \"%s\": %s\n"
% (name, os.strerror(error)))
sys.exit(1)
rpc = ovs.jsonrpc.Connection(stream)
error = rpc.send_block(msg)
if error:
sys.stderr.write("could not send notification: %s\n"
% os.strerror(error))
sys.exit(1)
rpc.close()
def main(argv):
parser = argparse.ArgumentParser(
description="JSON-RPC test utility for Python.",
formatter_class=argparse.RawDescriptionHelpFormatter)
commands = {"listen": (do_listen, 1),
"request": (do_request, 3),
"notify": (do_notify, 3),
"help": (parser.print_help, (0,))}
group_description = """\
listen LOCAL listen for connections on LOCAL
request REMOTE METHOD PARAMS send request, print reply
notify REMOTE METHOD PARAMS send notification and exit
""" + ovs.stream.usage("JSON-RPC")
group = parser.add_argument_group(title="Commands",
description=group_description)
group.add_argument('command', metavar="COMMAND", nargs=1,
choices=commands, help="Command to use.")
group.add_argument('command_args', metavar="ARG", nargs='*',
help="Arguments to COMMAND.")
ovs.daemon.add_args(parser)
args = parser.parse_args()
ovs.daemon.handle_args(args)
command_name = args.command[0]
args = args.command_args
if not command_name in commands:
sys.stderr.write("%s: unknown command \"%s\" "
"(use --help for help)\n" % (argv[0], command_name))
sys.exit(1)
func, n_args = commands[command_name]
if type(n_args) == tuple:
if len(args) < n_args[0]:
sys.stderr.write("%s: \"%s\" requires at least %d arguments but "
"only %d provided\n"
% (argv[0], command_name, n_args, len(args)))
sys.exit(1)
elif type(n_args) == int:
if len(args) != n_args:
sys.stderr.write("%s: \"%s\" requires %d arguments but %d "
"provided\n"
% (argv[0], command_name, n_args, len(args)))
sys.exit(1)
else:
assert False
func(*args)
if __name__ == '__main__':
main(sys.argv)
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