/usr/share/pyshared/ovs/ovsuuid.py is in python-openvswitch 2.0.1+git20140120-0ubuntu2.
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 | # Copyright (c) 2009, 2010, 2011 Nicira, Inc.
#
# 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 re
import uuid
from ovs.db import error
import ovs.db.parser
uuidRE = re.compile("^xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx$"
.replace('x', '[0-9a-fA-F]'))
def zero():
return uuid.UUID(int=0)
def is_valid_string(s):
return uuidRE.match(s) is not None
def from_string(s):
if not is_valid_string(s):
raise error.Error("%s is not a valid UUID" % s)
return uuid.UUID(s)
def from_json(json, symtab=None):
try:
s = ovs.db.parser.unwrap_json(json, "uuid", [str, unicode], "string")
if not uuidRE.match(s):
raise error.Error("\"%s\" is not a valid UUID" % s, json)
return uuid.UUID(s)
except error.Error, e:
if not symtab:
raise e
try:
name = ovs.db.parser.unwrap_json(json, "named-uuid",
[str, unicode], "string")
except error.Error:
raise e
if name not in symtab:
symtab[name] = uuid.uuid4()
return symtab[name]
def to_json(uuid_):
return ["uuid", str(uuid_)]
def to_c_assignment(uuid_, var):
"""Returns an array of strings, each of which contain a C statement. The
statements assign 'uuid_' to a "struct uuid" as defined in Open vSwitch
lib/uuid.h."""
hex_string = uuid_.hex
return ["%s.parts[%d] = 0x%s;" % (var, x, hex_string[x * 8:(x + 1) * 8])
for x in range(4)]
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