X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Fpeer_channel_encryptor.rs;fp=lightning%2Fsrc%2Fln%2Fpeer_channel_encryptor.rs;h=111c86ecae30a6afba8c8d61f1fae9ef72bea40c;hb=4bb5955be9a87cdaa645d011f135a3d5af3e6956;hp=db38d4ca75035aced2e33c9772c8f9673bbe33c4;hpb=0e5dfadf64474dbfa876a830a45fe7f734b4244e;p=rust-lightning

diff --git a/lightning/src/ln/peer_channel_encryptor.rs b/lightning/src/ln/peer_channel_encryptor.rs
index db38d4ca7..111c86eca 100644
--- a/lightning/src/ln/peer_channel_encryptor.rs
+++ b/lightning/src/ln/peer_channel_encryptor.rs
@@ -1,6 +1,5 @@
 use ln::msgs::LightningError;
 use ln::msgs;
-use ln::wire::LN_MAX_MSG_LEN;
 
 use bitcoin::hashes::{Hash, HashEngine, Hmac, HmacEngine};
 use bitcoin::hashes::sha256::Hash as Sha256;
@@ -13,6 +12,11 @@ use bitcoin::secp256k1;
 use util::chacha20poly1305rfc::ChaCha20Poly1305RFC;
 use util::byte_utils;
 
+/// Maximum Lightning message data length according to
+/// [BOLT-8](https://github.com/lightningnetwork/lightning-rfc/blob/v1.0/08-transport.md#lightning-message-specification)
+/// and [BOLT-1](https://github.com/lightningnetwork/lightning-rfc/blob/master/01-messaging.md#lightning-message-format):
+pub const LN_MAX_MSG_LEN: usize = ::std::u16::MAX as usize; // Must be equal to 65535
+
 // Sha256("Noise_XK_secp256k1_ChaChaPoly_SHA256")
 const NOISE_CK: [u8; 32] = [0x26, 0x40, 0xf5, 0x2e, 0xeb, 0xcd, 0x9e, 0x88, 0x29, 0x58, 0x95, 0x1c, 0x79, 0x42, 0x50, 0xee, 0xdb, 0x28, 0x00, 0x2c, 0x05, 0xd7, 0xdc, 0x2e, 0xa0, 0xf1, 0x95, 0x40, 0x60, 0x42, 0xca, 0xf1];
 // Sha256(NOISE_CK || "lightning")
@@ -698,6 +702,12 @@ mod tests {
 		}
 	}
 
+	#[test]
+	fn max_msg_len_limit_value() {
+		assert_eq!(LN_MAX_MSG_LEN, 65535);
+		assert_eq!(LN_MAX_MSG_LEN, ::std::u16::MAX as usize);
+	}
+
 	#[test]
 	#[should_panic(expected = "Attempted to encrypt message longer than 65535 bytes!")]
 	fn max_message_len_encryption() {