Adding upstream version 5.7.1.upstream/5.7.1

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

1 files changed, 78 insertions, 0 deletions

diff --git a/modules/cookies/cookies.c b/modules/cookies/cookies.c
new file mode 100644
index 0000000..5b688d3
--- /dev/null
+++ b/modules/cookies/cookies.c
@@ -0,0 +1,78 @@
+/*  Copyright (C) CZ.NIC, z.s.p.o. <knot-resolver@labs.nic.cz>
+ *  SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#include "daemon/engine.h"
+#include "lib/layer.h"
+#include "modules/cookies/cookiectl.h"
+#include "modules/cookies/cookiemonster.h"
+
+/**
+ * Get/set DNS cookie related stuff.
+ *
+ * Input: { name: value, ... }
+ * Output: current configuration
+ */
+static char *cookies_config(void *env, struct kr_module *module,
+                            const char *args)
+{
+	struct kr_cookie_ctx *cookie_ctx = module->data;
+	if (kr_fails_assert(cookie_ctx))
+		return NULL;
+
+	/* Apply configuration, if any. */
+	config_apply(cookie_ctx, args);
+
+	/* Return current configuration. */
+	return config_read(cookie_ctx);
+}
+
+/*
+ * Module implementation.
+ */
+
+KR_EXPORT
+int cookies_init(struct kr_module *module)
+{
+	/* The function answer_finalize() in resolver is called before any
+	 * .finish callback. Therefore this layer does not use it. */
+	static kr_layer_api_t layer = {
+		.begin = &check_request,
+		.consume = &check_response
+	};
+	/* Store module reference */
+	layer.data = module;
+	module->layer = &layer;
+
+	static const struct kr_prop props[] = {
+	    { &cookies_config, "config", "Empty value to return current configuration.", },
+	    { NULL, NULL, NULL }
+	};
+	module->props = props;
+
+	struct engine *engine = module->data;
+
+	struct kr_cookie_ctx *cookie_ctx = &engine->resolver.cookie_ctx;
+
+	int ret = config_init(cookie_ctx);
+	if (ret != kr_ok()) {
+		return ret;
+	}
+
+	/* Replace engine pointer. */
+	module->data = cookie_ctx;
+
+	return kr_ok();
+}
+
+KR_EXPORT
+int cookies_deinit(struct kr_module *module)
+{
+	struct kr_cookie_ctx *cookie_ctx = module->data;
+
+	config_deinit(cookie_ctx);
+
+	return kr_ok();
+}
+
+KR_MODULE_EXPORT(cookies)