Adding upstream version 1:9.16.44.upstream/1%9.16.44upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 212 insertions, 0 deletions

diff --git a/bin/named/log.c b/bin/named/log.c
new file mode 100644
index 0000000..b59002d
--- /dev/null
+++ b/bin/named/log.c
@@ -0,0 +1,212 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * 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 https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*! \file */
+
+#include <isc/result.h>
+
+#include <dns/log.h>
+
+#include <isccfg/log.h>
+
+#include <ns/log.h>
+
+#include <named/log.h>
+
+#ifndef ISC_FACILITY
+#define ISC_FACILITY LOG_DAEMON
+#endif /* ifndef ISC_FACILITY */
+
+/*%
+ * 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 },
+					  { "unmatched", 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 }, { "server", 0 }, { "control", 0 }, { NULL, 0 }
+};
+
+isc_result_t
+named_log_init(bool safe) {
+	isc_result_t result;
+	isc_logconfig_t *lcfg = NULL;
+
+	named_g_categories = categories;
+	named_g_modules = modules;
+
+	/*
+	 * Setup a logging context.
+	 */
+	isc_log_create(named_g_mctx, &named_g_lctx, &lcfg);
+
+	/*
+	 * named-checktool.c:setup_logging() needs to be kept in sync.
+	 */
+	isc_log_registercategories(named_g_lctx, named_g_categories);
+	isc_log_registermodules(named_g_lctx, named_g_modules);
+	isc_log_setcontext(named_g_lctx);
+	dns_log_init(named_g_lctx);
+	dns_log_setcontext(named_g_lctx);
+	cfg_log_init(named_g_lctx);
+	ns_log_init(named_g_lctx);
+	ns_log_setcontext(named_g_lctx);
+
+	if (safe) {
+		named_log_setsafechannels(lcfg);
+	} else {
+		named_log_setdefaultchannels(lcfg);
+	}
+
+	result = named_log_setdefaultcategory(lcfg);
+	if (result != ISC_R_SUCCESS) {
+		goto cleanup;
+	}
+
+	return (ISC_R_SUCCESS);
+
+cleanup:
+	isc_log_destroy(&named_g_lctx);
+	isc_log_setcontext(NULL);
+	dns_log_setcontext(NULL);
+
+	return (result);
+}
+
+void
+named_log_setdefaultchannels(isc_logconfig_t *lcfg) {
+	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 (!named_g_logstderr) {
+		destination.file.stream = NULL;
+		destination.file.name = "named.run";
+		destination.file.versions = ISC_LOG_ROLLNEVER;
+		destination.file.maximum_size = 0;
+		isc_log_createchannel(lcfg, "default_debug", ISC_LOG_TOFILE,
+				      ISC_LOG_DYNAMIC, &destination,
+				      ISC_LOG_PRINTTIME | ISC_LOG_DEBUGONLY);
+	}
+
+	if (named_g_logfile != NULL) {
+		destination.file.stream = NULL;
+		destination.file.name = named_g_logfile;
+		destination.file.versions = ISC_LOG_ROLLNEVER;
+		destination.file.maximum_size = 0;
+		isc_log_createchannel(lcfg, "default_logfile", ISC_LOG_TOFILE,
+				      ISC_LOG_DYNAMIC, &destination,
+				      ISC_LOG_PRINTTIME |
+					      ISC_LOG_PRINTCATEGORY |
+					      ISC_LOG_PRINTLEVEL);
+	}
+
+#if ISC_FACILITY != LOG_DAEMON
+	destination.facility = ISC_FACILITY;
+	isc_log_createchannel(lcfg, "default_syslog", ISC_LOG_TOSYSLOG,
+			      ISC_LOG_INFO, &destination, 0);
+#endif /* if ISC_FACILITY != LOG_DAEMON */
+
+	/*
+	 * Set the initial debug level.
+	 */
+	isc_log_setdebuglevel(named_g_lctx, named_g_debuglevel);
+}
+
+void
+named_log_setsafechannels(isc_logconfig_t *lcfg) {
+	isc_logdestination_t destination;
+
+	if (!named_g_logstderr) {
+		isc_log_createchannel(lcfg, "default_debug", ISC_LOG_TONULL,
+				      ISC_LOG_DYNAMIC, NULL, 0);
+
+		/*
+		 * Setting the debug level to zero should get the output
+		 * discarded a bit faster.
+		 */
+		isc_log_setdebuglevel(named_g_lctx, 0);
+	} else {
+		isc_log_setdebuglevel(named_g_lctx, named_g_debuglevel);
+	}
+
+	if (named_g_logfile != NULL) {
+		destination.file.stream = NULL;
+		destination.file.name = named_g_logfile;
+		destination.file.versions = ISC_LOG_ROLLNEVER;
+		destination.file.maximum_size = 0;
+		isc_log_createchannel(lcfg, "default_logfile", ISC_LOG_TOFILE,
+				      ISC_LOG_DYNAMIC, &destination,
+				      ISC_LOG_PRINTTIME |
+					      ISC_LOG_PRINTCATEGORY |
+					      ISC_LOG_PRINTLEVEL);
+	}
+
+#if ISC_FACILITY != LOG_DAEMON
+	destination.facility = ISC_FACILITY;
+	isc_log_createchannel(lcfg, "default_syslog", ISC_LOG_TOSYSLOG,
+			      ISC_LOG_INFO, &destination, 0);
+#endif /* if ISC_FACILITY != LOG_DAEMON */
+}
+
+isc_result_t
+named_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 (!named_g_logstderr) {
+		if (named_g_logfile != NULL) {
+			result = isc_log_usechannel(lcfg, "default_logfile",
+						    ISC_LOGCATEGORY_DEFAULT,
+						    NULL);
+		} else if (!named_g_nosyslog) {
+			result = isc_log_usechannel(lcfg, "default_syslog",
+						    ISC_LOGCATEGORY_DEFAULT,
+						    NULL);
+		}
+	}
+
+cleanup:
+	return (result);
+}
+
+isc_result_t
+named_log_setunmatchedcategory(isc_logconfig_t *lcfg) {
+	isc_result_t result;
+
+	result = isc_log_usechannel(lcfg, "null", NAMED_LOGCATEGORY_UNMATCHED,
+				    NULL);
+	return (result);
+}
+
+void
+named_log_shutdown(void) {
+	isc_log_destroy(&named_g_lctx);
+	isc_log_setcontext(NULL);
+	dns_log_setcontext(NULL);
+}