From a4504e850fe1f91ceec11839eff7e18c25e99e25 Mon Sep 17 00:00:00 2001
From: Forrest Voight <forrest@forre.st>
Date: Sat, 7 Jan 2012 03:07:17 -0500
Subject: [PATCH] don't accept connections from peer versions < 2

---
 p2pool/p2p.py |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/p2pool/p2p.py b/p2pool/p2p.py
index 3e4f3e3..b2f0faf 100644
--- a/p2pool/p2p.py
+++ b/p2pool/p2p.py
@@ -95,6 +95,10 @@ class Protocol(bitcoin_p2p.BaseProtocol):
         ('best_share_hash', bitcoin_data.PossiblyNoneType(0, bitcoin_data.HashType())),
     ])
     def handle_version(self, version, services, addr_to, addr_from, nonce, sub_version, mode, best_share_hash):
+        if self.other_version is not None or version < 2:
+            self.transport.loseConnection()
+            return
+        
         self.other_version = version
         self.other_sub_version = sub_version[:512]
         self.other_services = services
-- 
1.7.1