From a3f12874517dc2eee00db10ac06741a91a2e665f Mon Sep 17 00:00:00 2001
From: Mikael Magnusson <mikma@users.sourceforge.net>
Date: Fri, 28 Sep 2018 01:01:24 +0200
Subject: wg: Native function WIP

---
 proto/wireguard/wireguard.c | 49 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/proto/wireguard/wireguard.c b/proto/wireguard/wireguard.c
index f45796d5..92310def 100644
--- a/proto/wireguard/wireguard.c
+++ b/proto/wireguard/wireguard.c
@@ -1,6 +1,10 @@
 // Based on proto/rip/rip.c
 
 #include <stdio.h>
+
+#include "lib/lists.h"
+#include "lib/resource.h"
+#include "filter/filter.h"
 #include "nest/protocol.h"
 #include "nest/iface.h"
 #include "sysdep/linux/wireguard.h"
@@ -14,6 +18,50 @@ wg_init_entry(void *e_)
 //  debug("wg_init_entry\n");
 }
 
+
+/* struct symbol { */
+/*   struct symbol *next; */
+/*   struct sym_scope *scope; */
+/*   int class; */
+/*   int aux; */
+/*   void *aux2; */
+/*   void *def; */
+/*   char name[1]; */
+/* }; */
+
+static struct symbol *wg_arg;
+
+static struct f_val
+wg_foobar(void)
+{
+  struct f_val *var = wg_arg->def;
+  debug("**********************foobar**************************%x %x %s %x %x\n", wg_arg->class, var->type, var->val.s, f_rte, f_eattrs);
+  struct f_val res;
+  res.type = T_RETURN | T_VOID;
+  return res;
+}
+
+static void
+wg_preconfig(struct protocol *P, struct config *C)
+{
+  P, C;
+  debug("preconfig\n");
+  struct symbol *sym = cf_get_symbol("foobar");
+  struct symbol *res = cf_define_symbol(sym, SYM_FUNCTION_NATIVE, NULL);
+  cf_push_scope(res);
+  res->def = wg_foobar;		/* body */
+
+  wg_arg = cf_get_symbol("value");
+  struct f_val *val = cfg_alloc(sizeof(struct f_val));
+  val->type = T_VOID;
+  wg_arg = cf_define_symbol(wg_arg, SYM_VARIABLE | T_STRING, val);
+  wg_arg->aux2 = NULL;
+
+  res->aux2 = wg_arg;		/* params */
+
+  cf_pop_scope();
+}
+
 static void
 wg_postconfig(struct proto_config *C)
 {
@@ -208,6 +256,7 @@ struct protocol proto_wireguard = {
   .channel_mask =       NB_ANY,
   .proto_size =         sizeof(struct wg_proto),
   .config_size =	sizeof(struct wg_config),
+  .preconfig =		wg_preconfig,
   .postconfig =		wg_postconfig,
   .init =		wg_init,
   .start =		wg_start,
-- 
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