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

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

1 files changed, 179 insertions, 0 deletions

diff --git a/bin/tests/system/dyndb/driver/driver.c b/bin/tests/system/dyndb/driver/driver.c
new file mode 100644
index 0000000..51bcbd2
--- /dev/null
+++ b/bin/tests/system/dyndb/driver/driver.c
@@ -0,0 +1,179 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0 AND 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 https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*
+ * Copyright (C) Red Hat
+ *
+ * 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 AUTHORS 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.
+ */
+
+/*
+ * Driver API implementation and main entry point for BIND.
+ *
+ * BIND calls dyndb_version() before loading, dyndb_init() during startup
+ * and dyndb_destroy() during shutdown.
+ *
+ * It is completely up to implementation what to do.
+ *
+ * dyndb <name> <driver> {} sections in named.conf are independent so
+ * driver init() and destroy() functions are called independently for
+ * each section even if they reference the same driver/library. It is
+ * up to driver implementation to detect and catch this situation if
+ * it is undesirable.
+ */
+
+#include <isc/commandline.h>
+#include <isc/hash.h>
+#include <isc/lib.h>
+#include <isc/mem.h>
+#include <isc/util.h>
+
+#include <dns/db.h>
+#include <dns/dyndb.h>
+#include <dns/lib.h>
+#include <dns/types.h>
+
+#include "db.h"
+#include "instance.h"
+#include "log.h"
+#include "util.h"
+
+dns_dyndb_destroy_t dyndb_destroy;
+dns_dyndb_register_t dyndb_init;
+dns_dyndb_version_t dyndb_version;
+
+/*
+ * Driver init is called for each dyndb section in named.conf
+ * once during startup and then again on every reload.
+ *
+ * @code
+ * dyndb example-name "sample.so" { param1 param2 };
+ * @endcode
+ *
+ * @param[in] name        User-defined string from dyndb "name" {}; definition
+ *                        in named.conf.
+ *                        The example above will have name = "example-name".
+ * @param[in] parameters  User-defined parameters from dyndb section as one
+ *                        string. The example above will have
+ *                        params = "param1 param2";
+ * @param[in] file	  The name of the file from which the parameters
+ *                        were read.
+ * @param[in] line	  The line number from which the parameters were read.
+ * @param[out] instp      Pointer to instance-specific data
+ *                        (for one dyndb section).
+ */
+isc_result_t
+dyndb_init(isc_mem_t *mctx, const char *name, const char *parameters,
+	   const char *file, unsigned long line, const dns_dyndbctx_t *dctx,
+	   void **instp) {
+	isc_result_t result;
+	unsigned int argc;
+	char **argv = NULL;
+	char *s = NULL;
+	sample_instance_t *sample_inst = NULL;
+
+	REQUIRE(name != NULL);
+	REQUIRE(dctx != NULL);
+
+	/*
+	 * Depending on how dlopen() was called, we may not have
+	 * access to named's global namespace, in which case we need
+	 * to initialize libisc/libdns. We check this by comparing
+	 * the value of isc_mem_debugging to the value passed via
+	 * the context object.
+	 */
+	if (dctx->memdebug != &isc_mem_debugging) {
+		isc_lib_register();
+		isc_log_setcontext(dctx->lctx);
+		dns_log_setcontext(dctx->lctx);
+		isc_hash_set_initializer(dctx->hashinit);
+		isc_mem_debugging = *(unsigned int *)dctx->memdebug;
+	}
+
+	s = isc_mem_strdup(mctx, parameters);
+
+	result = isc_commandline_strtoargv(mctx, s, &argc, &argv, 0);
+	if (result != ISC_R_SUCCESS) {
+		log_write(ISC_LOG_ERROR,
+			  "dyndb_init: isc_commandline_strtoargv -> %s\n",
+			  isc_result_totext(result));
+		goto cleanup;
+	}
+
+	log_write(ISC_LOG_DEBUG(9), "loading params for dyndb '%s' from %s:%lu",
+		  name, file, line);
+
+	/* Finally, create the instance. */
+	result = new_sample_instance(mctx, name, argc, argv, dctx,
+				     &sample_inst);
+	if (result != ISC_R_SUCCESS) {
+		log_write(ISC_LOG_ERROR,
+			  "dyndb_init: new_sample_instance -> %s\n",
+			  isc_result_totext(result));
+		goto cleanup;
+	}
+
+	/*
+	 * This is an example so we create and load zones
+	 * right now.  This step can be arbitrarily postponed.
+	 */
+	result = load_sample_instance_zones(sample_inst);
+	if (result != ISC_R_SUCCESS) {
+		log_write(ISC_LOG_ERROR,
+			  "dyndb_init: load_sample_instance_zones -> %s\n",
+			  isc_result_totext(result));
+		goto cleanup;
+	}
+
+	*instp = sample_inst;
+
+cleanup:
+	isc_mem_free(mctx, s);
+	if (argv != NULL) {
+		isc_mem_put(mctx, argv, argc * sizeof(*argv));
+	}
+
+	return (result);
+}
+
+/*
+ * Driver destroy is called for every instance on every reload and then once
+ * during shutdown.
+ *
+ * @param[out] instp Pointer to instance-specific data (for one dyndb section).
+ */
+void
+dyndb_destroy(void **instp) {
+	destroy_sample_instance((sample_instance_t **)instp);
+}
+
+/*
+ * Driver version is called when loading the driver to ensure there
+ * is no API mismatch between the driver and the caller.
+ */
+int
+dyndb_version(unsigned int *flags) {
+	UNUSED(flags);
+
+	return (DNS_DYNDB_VERSION);
+}