plaintext: use varint msg read/writer

libp2p/security/insecure/transport.py

@@ -3,7 +3,7 @@ from libp2p.crypto.keys import PrivateKey, PublicKey
 from libp2p.crypto.pb import crypto_pb2
 from libp2p.crypto.serialization import deserialize_public_key
 from libp2p.io.abc import ReadWriteCloser
-from libp2p.io.msgio import FixedSizeLenMsgReadWriter
+from libp2p.io.msgio import VarIntLengthMsgReadWriter
 from libp2p.network.connection.exceptions import RawConnError
 from libp2p.network.connection.raw_connection_interface import IRawConnection
 from libp2p.peer.id import ID
@@ -20,11 +20,9 @@ from .pb import plaintext_pb2
 
 PLAINTEXT_PROTOCOL_ID = TProtocol("/plaintext/2.0.0")
 
-SIZE_PLAINTEXT_LEN_BYTES = 4
 
-
-class PlaintextHandshakeReadWriter(FixedSizeLenMsgReadWriter):
-    size_len_bytes = SIZE_PLAINTEXT_LEN_BYTES
+class PlaintextHandshakeReadWriter(VarIntLengthMsgReadWriter):
+    max_msg_size = 1 << 16
 
 
 class InsecureSession(BaseSession):

libp2p/tools/interop/daemon.py

@@ -8,7 +8,6 @@ import trio
 
 from libp2p.peer.id import ID
 from libp2p.peer.peerinfo import PeerInfo, info_from_p2p_addr
-from libp2p.security.insecure.transport import PLAINTEXT_PROTOCOL_ID
 from libp2p.typing import TProtocol
 
 from .constants import LOCALHOST_IP
@@ -28,10 +27,8 @@ class P2PDProcess(BaseInteractiveProcess):
         is_pubsub_signing: bool = False,
         is_pubsub_signing_strict: bool = False,
     ) -> None:
-        args = [f"-listen={control_maddr!s}"]
-        # NOTE: To support `-insecure`, we need to hack `go-libp2p-daemon`.
-        if security_protocol == PLAINTEXT_PROTOCOL_ID:
-            args.append("-insecure=true")
+        # NOTE: To support `-security`, we need to hack `go-libp2p-daemon`.
+        args = [f"-listen={control_maddr!s}", f"-security={security_protocol}"]
         if is_pubsub_enabled:
             args.append("-pubsub")
             if is_gossipsub:

tests_interop/test_echo.py

@@ -6,7 +6,6 @@ import pytest
 import trio
 
 from libp2p.peer.peerinfo import PeerInfo, info_from_p2p_addr
-from libp2p.security.insecure.transport import PLAINTEXT_PROTOCOL_ID
 from libp2p.tools.factories import HostFactory
 from libp2p.tools.interop.envs import GO_BIN_PATH
 from libp2p.tools.interop.process import BaseInteractiveProcess