Revert "Switch sentry to eth/67 (#113)" (#114)

This reverts commit 319e7d0.

_docs/README.md

@@ -82,7 +82,7 @@ In Erigon, there are with two interfaces:
 
 ## 2. Sentry
 
-Sentry is the component, connecting the node to the p2p network of the blockchain. In case of Erigon and Ethereum, it implements [`eth/67`](https://github.com/ethereum/devp2p/blob/master/caps/eth.md) protocol via [devp2p](https://github.com/ethereum/devp2p).
+Sentry is the component, connecting the node to the p2p network of the blockchain. In case of Erigon and Ethereum, it implements [`eth/65`, `eth/66`, etc](https://github.com/ethereum/devp2p/blob/master/caps/eth.md#change-log) protocols via [devp2p](https://github.com/ethereum/devp2p).
 
 Sentry accepts connections from [Core] and [Transaction Pool] components.
 

p2psentry/sentry.proto

@@ -8,27 +8,53 @@ package sentry;
 option go_package = "./sentry;sentry";
 
 enum MessageId {
-  // ======= eth/67 protocol ===========
-  // Version 67 removed the GetNodeData and NodeData messages.
-
-  // eth/64 (or earlier) announcement messages (no request-id)
-  STATUS = 0;
-  NEW_BLOCK_HASHES = 1;
-  TRANSACTIONS = 2;
-  NEW_BLOCK = 3;
-
-  // eth/65 announcement messages (no request-id)
-  NEW_POOLED_TRANSACTION_HASHES = 4;
-
-  // eth/66 messages with request-id
-  GET_BLOCK_HEADERS = 5;
-  BLOCK_HEADERS = 6;
-  GET_BLOCK_BODIES = 7;
-  BLOCK_BODIES = 8;
-  GET_POOLED_TRANSACTIONS = 9;
-  POOLED_TRANSACTIONS = 10;
-  GET_RECEIPTS = 11;
-  RECEIPTS = 12;
+  // ======= eth 65 protocol ===========
+
+  STATUS_65 = 0;
+  GET_BLOCK_HEADERS_65 = 1;
+  BLOCK_HEADERS_65 = 2;
+  BLOCK_HASHES_65 = 3;
+  GET_BLOCK_BODIES_65 = 4;
+  BLOCK_BODIES_65 = 5;
+  GET_NODE_DATA_65 = 6;
+  NODE_DATA_65 = 7;
+  GET_RECEIPTS_65 = 8;
+  RECEIPTS_65 = 9;
+  NEW_BLOCK_HASHES_65 = 10;
+  NEW_BLOCK_65 = 11;
+  TRANSACTIONS_65 = 12;
+  NEW_POOLED_TRANSACTION_HASHES_65 = 13;
+  GET_POOLED_TRANSACTIONS_65 = 14;
+  POOLED_TRANSACTIONS_65 = 15;
+
+
+  // ======= eth 66 protocol ===========
+
+  // eth64 announcement messages (no id)
+  STATUS_66 = 17;
+  NEW_BLOCK_HASHES_66 = 18;
+  NEW_BLOCK_66 = 19;
+  TRANSACTIONS_66 = 20;
+
+  // eth65 announcement messages (no id)
+  NEW_POOLED_TRANSACTION_HASHES_66 = 21;
+
+  // eth66 messages with request-id
+  GET_BLOCK_HEADERS_66 = 22;
+  GET_BLOCK_BODIES_66 = 23;
+  GET_NODE_DATA_66 = 24;
+  GET_RECEIPTS_66 = 25;
+  GET_POOLED_TRANSACTIONS_66 = 26;
+  BLOCK_HEADERS_66 = 27;
+  BLOCK_BODIES_66 = 28;
+  NODE_DATA_66 = 29;
+  RECEIPTS_66 = 30;
+  POOLED_TRANSACTIONS_66 = 31;
+
+
+
+  // ======= eth 67 protocol ===========
+  // ...
 }
 
 message OutboundMessageData {
@@ -85,7 +111,8 @@ message StatusData {
 }
 
 enum Protocol {
-  ETH67 = 0;
+  ETH65 = 0;
+  ETH66 = 1;
 }
 
 message SetStatusReply {}

remote/ethbackend.proto

@@ -32,7 +32,7 @@ service ETHBACKEND {
   // Version returns the service version number
   rpc Version(google.protobuf.Empty) returns (types.VersionReply);
 
-  // ProtocolVersion returns the Ethereum protocol version number (e.g. 67 for ETH67).
+  // ProtocolVersion returns the Ethereum protocol version number (e.g. 66 for ETH66).
   rpc ProtocolVersion(ProtocolVersionRequest) returns (ProtocolVersionReply);
 
   // ClientVersion returns the Ethereum client version string using node name convention (e.g. TurboGeth/v2021.03.2-alpha/Linux).