From ebf0ea3a0460a61dd13b13c9a58b4c6875369b15 Mon Sep 17 00:00:00 2001
From: alex <asxalex@163.com>
Date: Tue, 30 Jun 2026 09:25:38 +0800
Subject: [PATCH] upgrade to ipv6 if available

---
 src/network/packet.rs | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/network/packet.rs b/src/network/packet.rs
index b811c08..ce3ecc9 100755
--- a/src/network/packet.rs
+++ b/src/network/packet.rs
@@ -550,7 +550,7 @@ pub async fn check_peer_registration_needed(
     _v6_info: &Option<V6Info>,
     peer_sock: &SdlanSock,
 ) {
-    let p = eee.known_peers.peers.get(&src_mac);
+    let mut p = eee.known_peers.peers.get_mut(&src_mac);
     let last_seen;
     let now;
     match p {
@@ -561,7 +561,7 @@ pub async fn check_peer_registration_needed(
             return;
             // unimplemented!();
         }
-        Some(k) => {
+        Some(ref mut k) => {
             // let mut ipv4_to_ipv6 = false;
             now = get_current_timestamp();
             if !from_sn {
@@ -569,7 +569,13 @@ pub async fn check_peer_registration_needed(
             }
             let origin_family = k.sock.family;
             if origin_family != peer_sock.family {
-                return;
+                if peer_sock.family == AF_INET6 && origin_family == AF_INET {
+                    info!("Upgrading peer {} from IPv4 to IPv6 P2P", mac_to_string(&src_mac));
+                    k.sock = peer_sock.deepcopy();
+                    k.last_seen.store(now, Ordering::Relaxed);
+                } else {
+                    return;
+                }
             }
             /*
             if peer_sock.family == AF_INET6 && k.sock.read().unwrap().family == AF_INET {