From 89e35df44c641b580c17d6325250b740eeaffb7e Mon Sep 17 00:00:00 2001
From: Mikael Magnusson <mikma@users.sourceforge.net>
Date: Fri, 1 Mar 2019 21:53:19 +0100
Subject: Wireguard: Debug

---
 proto/wireguard/wireguard.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

(limited to 'proto')

diff --git a/proto/wireguard/wireguard.c b/proto/wireguard/wireguard.c
index cdc50317..d959de6f 100644
--- a/proto/wireguard/wireguard.c
+++ b/proto/wireguard/wireguard.c
@@ -34,6 +34,17 @@ wg_if_notify(struct proto *P, unsigned flags, struct iface *i)
   }
 }
 
+static void
+dump(void *ptr, size_t len)
+{
+  unsigned char *data = ptr;
+
+  for (size_t i=0; i<len; i++) {
+    fprintf(stderr, "%02x ", data[i]);
+  }
+  fprintf(stderr, "\n");
+}
+
 static void
 wg_rt_notify(struct proto *P, struct channel *ch UNUSED, struct network *n,
   struct rte *new, struct rte *old UNUSED)
@@ -168,8 +179,10 @@ wg_rt_notify(struct proto *P, struct channel *ch UNUSED, struct network *n,
     /* Withdraw */
     en = fib_find(&p->rtable, n->n.addr);
 
-    if (!en) // || en->valid != RIP_ENTRY_VALID)
+    if (!en) { // || en->valid != RIP_ENTRY_VALID)
+      debug("WG: fib not found\n");
       return;
+    }
 
 	struct wg_device *dev = NULL;
 
@@ -201,16 +214,21 @@ wg_rt_notify(struct proto *P, struct channel *ch UNUSED, struct network *n,
 	      
 	      wg_for_each_allowedip(peer, ip) {
 		if (allowedip->family != ip->family) {
+		  debug("WG: family no match\n");
 		  previp = ip;
 		  continue;
 		}
 
 		if (allowedip->cidr != ip->cidr) {
+		  debug("WG: cidr no match\n");
 		  previp = ip;
 		  continue;
 		}
 		
 		if (memcmp(&allowedip->ip6, &ip->ip6, sizeof(struct in6_addr))) {
+		  debug("WG: ip no match\n");
+		  dump(&allowedip->ip6, sizeof(struct in6_addr));
+		  dump(&ip->ip6, sizeof(struct in6_addr));
 		  previp = ip;
 		  continue;
 		}
-- 
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