This file is indexed.

/usr/share/pyshared/ovs/vlog.py is in python-openvswitch 1.4.2+git20120612-9.1~deb7u1.1.

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
# Copyright (c) 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 datetime
import logging
import logging.handlers
import socket
import sys

import ovs.dirs
import ovs.util

FACILITIES = {"console": "info", "file": "info", "syslog": "info"}
LEVELS = {
    "dbg": logging.DEBUG,
    "info": logging.INFO,
    "warn": logging.WARNING,
    "err": logging.ERROR,
    "emer": logging.CRITICAL,
    "off": logging.CRITICAL
}


def get_level(level_str):
    return LEVELS.get(level_str.lower())


class Vlog:
    __inited = False
    __msg_num = 0
    __mfl = {}  # Module -> facility -> level

    def __init__(self, name):
        """Creates a new Vlog object representing a module called 'name'.  The
        created Vlog object will do nothing until the Vlog.init() static method
        is called.  Once called, no more Vlog objects may be created."""

        assert not Vlog.__inited
        self.name = name.lower()
        if name not in Vlog.__mfl:
            Vlog.__mfl[self.name] = FACILITIES.copy()

    def __log(self, level, message, **kwargs):
        if not Vlog.__inited:
            return

        now = datetime.datetime.now().strftime("%b %d %H:%M:%S")
        message = ("%s|%s|%s|%s|%s"
                   % (now, Vlog.__msg_num, self.name, level, message))

        level = LEVELS.get(level.lower(), logging.DEBUG)
        Vlog.__msg_num += 1

        for f, f_level in Vlog.__mfl[self.name].iteritems():
            f_level = LEVELS.get(f_level, logging.CRITICAL)
            if level >= f_level:
                logging.getLogger(f).log(level, message, **kwargs)

    def emer(self, message, **kwargs):
        self.__log("EMER", message, **kwargs)

    def err(self, message, **kwargs):
        self.__log("ERR", message, **kwargs)

    def warn(self, message, **kwargs):
        self.__log("WARN", message, **kwargs)

    def info(self, message, **kwargs):
        self.__log("INFO", message, **kwargs)

    def dbg(self, message, **kwargs):
        self.__log("DBG", message, **kwargs)

    def exception(self, message):
        """Logs 'message' at ERR log level.  Includes a backtrace when in
        exception context."""
        self.err(message, exc_info=True)

    @staticmethod
    def init(log_file=None):
        """Intializes the Vlog module.  Causes Vlog to write to 'log_file' if
        not None.  Should be called after all Vlog objects have been created.
        No logging will occur until this function is called."""

        if Vlog.__inited:
            return

        Vlog.__inited = True
        logging.raiseExceptions = False
        for f in FACILITIES:
            logger = logging.getLogger(f)
            logger.setLevel(logging.DEBUG)

            try:
                if f == "console":
                    logger.addHandler(logging.StreamHandler(sys.stderr))
                elif f == "syslog":
                    logger.addHandler(logging.handlers.SysLogHandler(
                        address="/dev/log",
                        facility=logging.handlers.SysLogHandler.LOG_DAEMON))
                elif f == "file" and log_file:
                    logger.addHandler(logging.FileHandler(log_file))
            except (IOError, socket.error):
                logger.setLevel(logging.CRITICAL)

    @staticmethod
    def set_level(module, facility, level):
        """ Sets the log level of the 'module'-'facility' tuple to 'level'.
        All three arguments are strings which are interpreted the same as
        arguments to the --verbose flag.  Should be called after all Vlog
        objects have already been created."""

        module = module.lower()
        facility = facility.lower()
        level = level.lower()

        if facility != "any" and facility not in FACILITIES:
            return

        if module != "any" and module not in Vlog.__mfl:
            return

        if level not in LEVELS:
            return

        if module == "any":
            modules = Vlog.__mfl.keys()
        else:
            modules = [module]

        if facility == "any":
            facilities = FACILITIES.keys()
        else:
            facilities = [facility]

        for m in modules:
            for f in facilities:
                Vlog.__mfl[m][f] = level


def add_args(parser):
    """Adds vlog related options to 'parser', an ArgumentParser object.  The
    resulting arguments parsed by 'parser' should be passed to handle_args."""

    group = parser.add_argument_group(title="Logging Options")
    group.add_argument("--log-file", nargs="?", const="default",
                       help="Enables logging to a file.  Default log file"
                       " is used if LOG_FILE is omitted.")
    group.add_argument("-v", "--verbose", nargs="*",
                       help="Sets logging levels, see ovs-vswitchd(8)."
                       "  Defaults to ANY:ANY:dbg.")


def handle_args(args):
    """ Handles command line arguments ('args') parsed by an ArgumentParser.
    The ArgumentParser should have been primed by add_args().  Also takes care
    of initializing the Vlog module."""

    log_file = args.log_file
    if log_file == "default":
        log_file = "%s/%s.log" % (ovs.dirs.LOGDIR, ovs.util.PROGRAM_NAME)

    if args.verbose is None:
        args.verbose = []
    elif args.verbose == []:
        args.verbose = ["any:any:dbg"]

    for verbose in args.verbose:
        args = verbose.split(':')

        if len(args) >= 3:
            level = args[2]
        else:
            level = "dbg"

        if len(args) >= 2:
            facility = args[1]
        else:
            facility = "any"

        if len(args) >= 1:
            module = args[0]
        else:
            module = "any"

        Vlog.set_level(module, facility, level)

    Vlog.init(log_file)