helpers: implement explicit CT helper assignment support

[project/firewall3.git] / helpers.h

diff --git a/helpers.h b/helpers.h
new file mode 100644 (file)
index 0000000..450428e
--- /dev/null
+++ b/helpers.h
@@ -0,0 +1,50 @@
+/*
+ * firewall3 - 3rd OpenWrt UCI firewall implementation
+ *
+ *   Copyright (C) 2018 Jo-Philipp Wich <jo@mein.io>
+ *
+ * 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 THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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.
+ */
+
+#ifndef __FW3_HELPERS_H
+#define __FW3_HELPERS_H
+
+#include "options.h"
+#include "utils.h"
+#include "iptables.h"
+
+
+extern const struct fw3_option fw3_cthelper_opts[];
+
+void
+fw3_load_cthelpers(struct fw3_state *state, struct uci_package *p);
+
+struct fw3_cthelper *
+fw3_lookup_cthelper(struct fw3_state *state, const char *name);
+
+struct fw3_cthelper *
+fw3_lookup_cthelper_by_proto_port(struct fw3_state *state,
+                                  struct fw3_protocol *proto,
+                                  struct fw3_port *port);
+
+void
+fw3_print_cthelpers(struct fw3_ipt_handle *handle, struct fw3_state *state,
+                    struct fw3_zone *zone);
+
+static inline void fw3_free_cthelper(struct fw3_cthelper *helper)
+{
+       list_del(&helper->list);
+       fw3_free_object(helper, fw3_cthelper_opts);
+}
+
+#endif