From: Matt Corallo <git@bluematt.me>
Date: Sun, 19 Nov 2023 03:10:19 +0000 (+0000)
Subject: Allow matching on local and remote IPs
X-Git-Url: http://git.bitcoin.ninja/?a=commitdiff_plain;h=refs%2Fheads%2Fmaster;p=bpfnofrags

Allow matching on local and remote IPs
---

diff --git a/swapper.h b/swapper.h
index 9795149..25f4a1f 100644
--- a/swapper.h
+++ b/swapper.h
@@ -59,7 +59,7 @@ struct {
 static inline void _maybe_swap_egress(struct iphdr *ip) {
 	if (unlikely(ip->ihl != 5)) return;
 
-	CHECK_SRC_DST(ip->daddr);
+	CHECK_LOCAL_REMOTE(ip->saddr, ip->daddr);
 
 	if (ip->protocol == IP_PROTO_UDP) {
 		if (ip->frag_off == BE16(IP_MF)) {