diff options
| -rw-r--r-- | src/net_processing.cpp | 6 | ||||
| -rwxr-xr-x | test/functional/p2p_invalid_messages.py | 9 |
2 files changed, 11 insertions, 4 deletions
diff --git a/src/net_processing.cpp b/src/net_processing.cpp index df97d0e2e7..f21fb8a49b 100644 --- a/src/net_processing.cpp +++ b/src/net_processing.cpp @@ -2286,10 +2286,8 @@ void PeerManager::ProcessMessage(CNode& pfrom, const std::string& msg_type, CDat if (peer == nullptr) return; if (msg_type == NetMsgType::VERSION) { - // Each connection can only send one version message - if (pfrom.nVersion != 0) - { - Misbehaving(pfrom.GetId(), 1, "redundant version message"); + if (pfrom.nVersion != 0) { + LogPrint(BCLog::NET, "redundant version message from peer=%d\n", pfrom.GetId()); return; } diff --git a/test/functional/p2p_invalid_messages.py b/test/functional/p2p_invalid_messages.py index db72a361d9..c0b3c2cb12 100755 --- a/test/functional/p2p_invalid_messages.py +++ b/test/functional/p2p_invalid_messages.py @@ -18,6 +18,7 @@ from test_framework.messages import ( msg_inv, msg_ping, MSG_TX, + msg_version, ser_string, ) from test_framework.p2p import ( @@ -60,6 +61,7 @@ class InvalidMessagesTest(BitcoinTestFramework): def run_test(self): self.test_buffer() + self.test_duplicate_version_msg() self.test_magic_bytes() self.test_checksum() self.test_size() @@ -92,6 +94,13 @@ class InvalidMessagesTest(BitcoinTestFramework): conn.sync_with_ping(timeout=1) self.nodes[0].disconnect_p2ps() + def test_duplicate_version_msg(self): + self.log.info("Test duplicate version message is ignored") + conn = self.nodes[0].add_p2p_connection(P2PDataStore()) + with self.nodes[0].assert_debug_log(['redundant version message from peer']): + conn.send_and_ping(msg_version()) + self.nodes[0].disconnect_p2ps() + def test_magic_bytes(self): self.log.info("Test message with invalid magic bytes disconnects peer") conn = self.nodes[0].add_p2p_connection(P2PDataStore()) |