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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:26:00 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:26:00 +0000
commit830407e88f9d40d954356c3754f2647f91d5c06a (patch)
treed6a0ece6feea91f3c656166dbaa884ef8a29740e /daemon/engine.h
parentInitial commit. (diff)
downloadknot-resolver-upstream/5.6.0.tar.xz
knot-resolver-upstream/5.6.0.zip
Adding upstream version 5.6.0.upstream/5.6.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'daemon/engine.h')
-rw-r--r--daemon/engine.h84
1 files changed, 84 insertions, 0 deletions
diff --git a/daemon/engine.h b/daemon/engine.h
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+++ b/daemon/engine.h
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+/* Copyright (C) CZ.NIC, z.s.p.o. <knot-resolver@labs.nic.cz>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#pragma once
+
+/*
+ * @internal These are forward decls to allow building modules with engine but without Lua.
+ */
+struct lua_State;
+
+#include "lib/utils.h"
+#include "lib/resolve.h"
+#include "daemon/network.h"
+
+struct engine {
+ struct kr_context resolver;
+ struct network net;
+ module_array_t modules;
+ array_t(const struct kr_cdb_api *) backends;
+ knot_mm_t *pool;
+ char *hostname;
+ struct lua_State *L;
+};
+
+int engine_init(struct engine *engine, knot_mm_t *pool);
+void engine_deinit(struct engine *engine);
+
+/** Perform a lua command within the sandbox.
+ *
+ * @return zero on success.
+ * The result will be returned on the lua stack - an error message in case of failure.
+ * http://www.lua.org/manual/5.1/manual.html#lua_pcall */
+int engine_cmd(struct lua_State *L, const char *str, bool raw);
+
+/** Execute current chunk in the sandbox */
+int engine_pcall(struct lua_State *L, int argc);
+
+int engine_load_sandbox(struct engine *engine);
+int engine_loadconf(struct engine *engine, const char *config_path);
+
+/** Start the lua engine and execute the config. */
+int engine_start(struct engine *engine);
+void engine_stop(struct engine *engine);
+int engine_register(struct engine *engine, const char *name, const char *precedence, const char* ref);
+int engine_unregister(struct engine *engine, const char *name);
+
+/** Set/get the per engine hostname */
+char *engine_get_hostname(struct engine *engine);
+int engine_set_hostname(struct engine *engine, const char *hostname);
+
+/** Load root hints from a zonefile (or config-time default if NULL).
+ *
+ * @return error message or NULL (statically allocated)
+ * @note exported to be usable from the hints module.
+ */
+KR_EXPORT
+const char* engine_hint_root_file(struct kr_context *ctx, const char *file);
+
+/* @internal Array of ip address shorthand. */
+typedef array_t(char*) addr_array_t;
+
+typedef array_t(const char*) config_array_t;
+
+typedef struct {
+ int fd;
+ endpoint_flags_t flags; /**< .sock_type isn't meaningful here */
+} flagged_fd_t;
+typedef array_t(flagged_fd_t) flagged_fd_array_t;
+
+struct args {
+ addr_array_t addrs, addrs_tls;
+ flagged_fd_array_t fds;
+ int control_fd;
+ int forks;
+ config_array_t config;
+ const char *rundir;
+ bool interactive;
+ bool quiet;
+ bool tty_binary_output;
+};
+
+/** Pointer to kresd arguments. */
+KR_EXPORT extern struct args *the_args;