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fe089c0d1e
This patch helps to address two issues that are present on Ubuntu 15.04 (and most likely other Linux distributions) where rsyslog daemon is configured to relay log messages from OVS to a remote log collector and syslog format being used is something other than the one defined in RFC 3164. These two issues are: 1. libc syslog() function always adds RFC 3164 prefix to syslog messages before sending them over /dev/log Unix domain socket. This does not allow us to use libc syslog() function to log in RFC 5424 format; and 2. rsyslogd daemon that comes with Ubuntu 15.04 is too old and uses hardcoded syslog message parser when it received messages over /dev/log UNIX domain socket. Solution to those two issues would be to use the newly introduced --syslog-method=udp:127.0.0.1:514 command line argument when starting OVS. Signed-off-by: Ansis Atteka <aatteka@nicira.com> Acked-by: Ben Pfaff <blp@nicira.com>
51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
/*
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* Copyright (c) 2015 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SYSLOG_PROVIDER_H
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#define SYSLOG_PROVIDER_H 1
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/* Open vSwitch interface to syslog daemon's interface.
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*
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* 'syslogger' is the base class that provides abstraction. */
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struct syslogger {
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const struct syslog_class *class; /* Virtual functions for concrete
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* syslogger implementations. */
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const char *prefix; /* Prefix that is enforced by concrete
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* syslogger implementation. Used
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* in vlog/list-pattern function. */
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};
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/* Each concrete syslogger implementation must define it's own table with
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* following functions. These functions must never call any other VLOG_
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* function to prevent deadlocks. */
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struct syslog_class {
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/* openlog() function should be called before syslog() function. It
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* should initialize all system resources needed to perform logging. */
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void (*openlog)(struct syslogger *this, int facility);
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/* syslog() function sends message 'msg' to syslog daemon. */
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void (*syslog)(struct syslogger *this, int pri, const char *msg);
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};
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static inline const char *
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syslog_get_prefix(struct syslogger *this)
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{
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return this->prefix;
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}
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#endif /* syslog-provider.h */
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