log.c revision ec5347e2c775f027573ce5648b910361aa926c01
/*
* Copyright (C) 2004-2006 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 1999-2002 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: log.c,v 1.45 2007/06/18 23:47:18 tbox Exp $ */
/*! \file */
#include <config.h>
#include <isc/result.h>
#include <isccfg/log.h>
#include <named/log.h>
#ifndef ISC_FACILITY
#define ISC_FACILITY LOG_DAEMON
#endif
/*%
* When adding a new category, be sure to add the appropriate
* \#define to <named/log.h> and to update the list in
* bin/check/check-tool.c.
*/
static isc_logcategory_t categories[] = {
{ "", 0 },
{ "client", 0 },
{ "network", 0 },
{ "update", 0 },
{ "queries", 0 },
{ "unmatched", 0 },
{ "update-security", 0 },
{ NULL, 0 }
};
/*%
* When adding a new module, be sure to add the appropriate
* \#define to <dns/log.h>.
*/
static isc_logmodule_t modules[] = {
{ "main", 0 },
{ "client", 0 },
{ "server", 0 },
{ "query", 0 },
{ "interfacemgr", 0 },
{ "update", 0 },
{ "xfer-in", 0 },
{ "xfer-out", 0 },
{ "notify", 0 },
{ "control", 0 },
{ "lwresd", 0 },
{ NULL, 0 }
};
isc_result_t
ns_log_init(isc_boolean_t safe) {
isc_result_t result;
isc_logconfig_t *lcfg = NULL;
ns_g_categories = categories;
ns_g_modules = modules;
/*
* Setup a logging context.
*/
result = isc_log_create(ns_g_mctx, &ns_g_lctx, &lcfg);
if (result != ISC_R_SUCCESS)
return (result);
/*
* named-checktool.c:setup_logging() needs to be kept in sync.
*/
isc_log_registercategories(ns_g_lctx, ns_g_categories);
isc_log_registermodules(ns_g_lctx, ns_g_modules);
isc_log_setcontext(ns_g_lctx);
dns_log_init(ns_g_lctx);
dns_log_setcontext(ns_g_lctx);
cfg_log_init(ns_g_lctx);
if (safe)
result = ns_log_setsafechannels(lcfg);
else
result = ns_log_setdefaultchannels(lcfg);
if (result != ISC_R_SUCCESS)
goto cleanup;
result = ns_log_setdefaultcategory(lcfg);
if (result != ISC_R_SUCCESS)
goto cleanup;
return (ISC_R_SUCCESS);
cleanup:
isc_log_destroy(&ns_g_lctx);
isc_log_setcontext(NULL);
dns_log_setcontext(NULL);
return (result);
}
isc_result_t
ns_log_setdefaultchannels(isc_logconfig_t *lcfg) {
isc_result_t result;
isc_logdestination_t destination;
/*
* By default, the logging library makes "default_debug" log to
* stderr. In BIND, we want to override this and log to named.run
* instead, unless the the -g option was given.
*/
if (! ns_g_logstderr) {
destination.file.stream = NULL;
destination.file.name = "named.run";
destination.file.versions = ISC_LOG_ROLLNEVER;
destination.file.maximum_size = 0;
result = isc_log_createchannel(lcfg, "default_debug",
ISC_LOG_TOFILE,
ISC_LOG_DYNAMIC,
&destination,
ISC_LOG_PRINTTIME|
ISC_LOG_DEBUGONLY);
if (result != ISC_R_SUCCESS)
goto cleanup;
}
#if ISC_FACILITY != LOG_DAEMON
destination.facility = ISC_FACILITY;
result = isc_log_createchannel(lcfg, "default_syslog",
ISC_LOG_TOSYSLOG, ISC_LOG_INFO,
&destination, 0);
if (result != ISC_R_SUCCESS)
goto cleanup;
#endif
/*
* Set the initial debug level.
*/
isc_log_setdebuglevel(ns_g_lctx, ns_g_debuglevel);
result = ISC_R_SUCCESS;
cleanup:
return (result);
}
isc_result_t
ns_log_setsafechannels(isc_logconfig_t *lcfg) {
isc_result_t result;
#if ISC_FACILITY != LOG_DAEMON
isc_logdestination_t destination;
#endif
if (! ns_g_logstderr) {
result = isc_log_createchannel(lcfg, "default_debug",
ISC_LOG_TONULL,
ISC_LOG_DYNAMIC,
NULL, 0);
if (result != ISC_R_SUCCESS)
goto cleanup;
/*
* Setting the debug level to zero should get the output
* discarded a bit faster.
*/
isc_log_setdebuglevel(ns_g_lctx, 0);
} else {
isc_log_setdebuglevel(ns_g_lctx, ns_g_debuglevel);
}
#if ISC_FACILITY != LOG_DAEMON
destination.facility = ISC_FACILITY;
result = isc_log_createchannel(lcfg, "default_syslog",
ISC_LOG_TOSYSLOG, ISC_LOG_INFO,
&destination, 0);
if (result != ISC_R_SUCCESS)
goto cleanup;
#endif
result = ISC_R_SUCCESS;
cleanup:
return (result);
}
isc_result_t
ns_log_setdefaultcategory(isc_logconfig_t *lcfg) {
isc_result_t result;
if (! ns_g_logstderr) {
result = isc_log_usechannel(lcfg, "default_syslog",
ISC_LOGCATEGORY_DEFAULT, NULL);
if (result != ISC_R_SUCCESS)
goto cleanup;
}
result = isc_log_usechannel(lcfg, "default_debug",
ISC_LOGCATEGORY_DEFAULT, NULL);
if (result != ISC_R_SUCCESS)
goto cleanup;
result = ISC_R_SUCCESS;
cleanup:
return (result);
}
isc_result_t
ns_log_setunmatchedcategory(isc_logconfig_t *lcfg) {
isc_result_t result;
result = isc_log_usechannel(lcfg, "null",
NS_LOGCATEGORY_UNMATCHED, NULL);
return (result);
}
void
ns_log_shutdown(void) {
isc_log_destroy(&ns_g_lctx);
isc_log_setcontext(NULL);
dns_log_setcontext(NULL);
}