diff options
Diffstat (limited to 'bin/named/log.c')
| -rw-r--r-- | bin/named/log.c | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/bin/named/log.c b/bin/named/log.c new file mode 100644 index 0000000..3aa25e9 --- /dev/null +++ b/bin/named/log.c @@ -0,0 +1,261 @@ +/* + * Copyright (C) Internet Systems Consortium, Inc. ("ISC") + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * See the COPYRIGHT file distributed with this work for additional + * information regarding copyright ownership. + */ + +/*! \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 }, + { "query-errors", 0 }, + { "trust-anchor-telemetry", 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(bool 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 -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 (ns_g_logfile != NULL) { + destination.file.stream = NULL; + destination.file.name = ns_g_logfile; + destination.file.versions = ISC_LOG_ROLLNEVER; + destination.file.maximum_size = 0; + result = isc_log_createchannel(lcfg, "default_logfile", + ISC_LOG_TOFILE, + ISC_LOG_DYNAMIC, + &destination, + ISC_LOG_PRINTTIME| + ISC_LOG_PRINTCATEGORY| + ISC_LOG_PRINTLEVEL); + 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; + isc_logdestination_t destination; + + 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 (ns_g_logfile != NULL) { + destination.file.stream = NULL; + destination.file.name = ns_g_logfile; + destination.file.versions = ISC_LOG_ROLLNEVER; + destination.file.maximum_size = 0; + result = isc_log_createchannel(lcfg, "default_logfile", + ISC_LOG_TOFILE, + ISC_LOG_DYNAMIC, + &destination, + ISC_LOG_PRINTTIME| + ISC_LOG_PRINTCATEGORY| + ISC_LOG_PRINTLEVEL); + 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 + + result = ISC_R_SUCCESS; + + cleanup: + return (result); +} + +isc_result_t +ns_log_setdefaultcategory(isc_logconfig_t *lcfg) { + isc_result_t result = ISC_R_SUCCESS; + + result = isc_log_usechannel(lcfg, "default_debug", + ISC_LOGCATEGORY_DEFAULT, NULL); + if (result != ISC_R_SUCCESS) + goto cleanup; + + if (! ns_g_logstderr) { + if (ns_g_logfile != NULL) + result = isc_log_usechannel(lcfg, "default_logfile", + ISC_LOGCATEGORY_DEFAULT, + NULL); + else if (! ns_g_nosyslog) + result = isc_log_usechannel(lcfg, "default_syslog", + ISC_LOGCATEGORY_DEFAULT, + NULL); + } + + 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); +} |