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/*
* Copyright (c) 2002-2012 Balabit
* Copyright (c) 1998-2012 Balázs Scheidler
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include "msg-format.h"
#include "cfg.h"
#include "plugin.h"
#include "plugin-types.h"
void
msg_format_inject_parse_error(LogMessage *msg, const guchar *data, gsize length, gint problem_position)
{
gchar buf[2048];
log_msg_clear(msg);
msg->timestamps[LM_TS_STAMP] = msg->timestamps[LM_TS_RECVD];
log_msg_set_value(msg, LM_V_HOST, "", 0);
g_snprintf(buf, sizeof(buf), "Error processing log message: %.*s>@<%.*s", (gint) problem_position-1,
data, (gint) (length-problem_position+1), data+problem_position-1);
log_msg_set_value(msg, LM_V_MESSAGE, buf, -1);
log_msg_set_value(msg, LM_V_PROGRAM, "syslog-ng", 9);
g_snprintf(buf, sizeof(buf), "%d", (int) getpid());
log_msg_set_value(msg, LM_V_PID, buf, -1);
msg->pri = LOG_SYSLOG | LOG_ERR;
}
void
msg_format_parse(MsgFormatOptions *options, const guchar *data, gsize length, LogMessage *msg)
{
if (G_LIKELY(options->format_handler))
{
msg_trace("Initial message parsing follows");
options->format_handler->parse(options, data, length, msg);
if (options->flags & LP_NO_PARSE_DATE)
{
msg->timestamps[LM_TS_STAMP] = msg->timestamps[LM_TS_RECVD];
unix_time_set_timezone(&msg->timestamps[LM_TS_STAMP],
time_zone_info_get_offset(options->recv_time_zone_info,
msg->timestamps[LM_TS_RECVD].ut_sec));
}
}
else
{
log_msg_set_value(msg, LM_V_MESSAGE, "Error parsing message, format module is not loaded", -1);
}
}
void
msg_format_options_defaults(MsgFormatOptions *options)
{
options->flags = LP_EXPECT_HOSTNAME | LP_STORE_LEGACY_MSGHDR;
options->recv_time_zone = NULL;
options->recv_time_zone_info = NULL;
options->bad_hostname = NULL;
options->default_pri = 0xFFFF;
options->sdata_param_value_max = 65535;
}
/* NOTE: _init needs to be idempotent when called multiple times w/o invoking _destroy */
void
msg_format_options_init(MsgFormatOptions *options, GlobalConfig *cfg)
{
Plugin *p;
if (options->initialized)
return;
if (cfg->bad_hostname_compiled)
options->bad_hostname = &cfg->bad_hostname;
if (options->recv_time_zone == NULL)
options->recv_time_zone = g_strdup(cfg->recv_time_zone);
if (options->recv_time_zone_info == NULL)
options->recv_time_zone_info = time_zone_info_new(options->recv_time_zone);
if (!options->format)
options->format = g_strdup("syslog");
p = cfg_find_plugin(cfg, LL_CONTEXT_FORMAT, options->format);
if (p)
options->format_handler = plugin_construct(p);
options->initialized = TRUE;
}
void
msg_format_options_copy(MsgFormatOptions *options, const MsgFormatOptions *source)
{
g_assert(!options->initialized);
options->format = g_strdup(source->format);
options->flags = source->flags;
options->default_pri = source->default_pri;
options->recv_time_zone = g_strdup(source->recv_time_zone);
options->sdata_param_value_max = source->sdata_param_value_max;
}
void
msg_format_options_destroy(MsgFormatOptions *options)
{
if (options->format)
{
g_free(options->format);
options->format = NULL;
}
if (options->recv_time_zone)
{
g_free(options->recv_time_zone);
options->recv_time_zone = NULL;
}
if (options->recv_time_zone_info)
{
time_zone_info_free(options->recv_time_zone_info);
options->recv_time_zone_info = NULL;
}
options->initialized = FALSE;
}
CfgFlagHandler msg_format_flag_handlers[] =
{
{ "no-parse", CFH_SET, offsetof(MsgFormatOptions, flags), LP_NOPARSE },
{ "check-hostname", CFH_SET, offsetof(MsgFormatOptions, flags), LP_CHECK_HOSTNAME },
{ "syslog-protocol", CFH_SET, offsetof(MsgFormatOptions, flags), LP_SYSLOG_PROTOCOL },
{ "assume-utf8", CFH_SET, offsetof(MsgFormatOptions, flags), LP_ASSUME_UTF8 },
{ "validate-utf8", CFH_SET, offsetof(MsgFormatOptions, flags), LP_VALIDATE_UTF8 },
{ "sanitize-utf8", CFH_SET, offsetof(MsgFormatOptions, flags), LP_SANITIZE_UTF8 },
{ "no-multi-line", CFH_SET, offsetof(MsgFormatOptions, flags), LP_NO_MULTI_LINE },
{ "store-legacy-msghdr", CFH_SET, offsetof(MsgFormatOptions, flags), LP_STORE_LEGACY_MSGHDR },
{ "store-raw-message", CFH_SET, offsetof(MsgFormatOptions, flags), LP_STORE_RAW_MESSAGE },
{ "dont-store-legacy-msghdr", CFH_CLEAR, offsetof(MsgFormatOptions, flags), LP_STORE_LEGACY_MSGHDR },
{ "expect-hostname", CFH_SET, offsetof(MsgFormatOptions, flags), LP_EXPECT_HOSTNAME },
{ "no-hostname", CFH_CLEAR, offsetof(MsgFormatOptions, flags), LP_EXPECT_HOSTNAME },
{ "guess-timezone", CFH_SET, offsetof(MsgFormatOptions, flags), LP_GUESS_TIMEZONE },
{ NULL },
};
gboolean
msg_format_options_process_flag(MsgFormatOptions *options, const gchar *flag)
{
return cfg_process_flag(msg_format_flag_handlers, options, flag);
}
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