Define RPCErrorCode enum

Defines all the rpc error codes specified in bitcoin's protocol.h file

Cargo.toml

@@ -30,6 +30,8 @@ crossbeam-channel = "0.5"
 dirs-next = "2.0"
 env_logger = "0.10"
 log = "0.4"
+num-traits = "0.2"
+num-derive = "0.4"
 parking_lot = "0.12"
 prometheus = { version = "0.13", optional = true }
 rayon = "1.8"

src/daemon.rs

@@ -253,3 +253,54 @@ pub(crate) fn extract_bitcoind_error(err: &bitcoincore_rpc::Error) -> Option<&Rp
         _ => None,
     }
 }
+
+// Bitcoin RPC error codes
+// https://github.com/bitcoin/bitcoin/blob/master/src/rpc/protocol.h
+#[derive(Debug, PartialEq, FromPrimitive, ToPrimitive)]
+pub(crate) enum RPCErrorCode {
+    RpcInvalidRequest = -32600,
+    RpcMethodNotFound = -32601,
+    RpcInvalidParams = -32602,
+    RpcInternalError = -32603,
+    RpcParseError = -32700,
+
+    RpcMiscError = -1,
+    RpcTypeError = -3,
+    RpcInvalidAddressOrKey = -5,
+    RpcOutOfMemory = -7,
+    RpcInvalidParameter = -8,
+
+    RpcDatabaseError = -20,
+    RpcDeserializationError = -22,
+    RpcVerifyError = -25,
+    RpcVerifyRejected = -26,
+    RpcVerifyAlreadyInChain = -27,
+    RpcInWarmup = -28,
+    RpcMethodDeprecated = -32,
+
+    RpcClientNotConnected = -9,
+    RpcClientInInitialDownload = -10,
+    RpcClientNodeAlreadyAdded = -23,
+    RpcClientNodeNotAdded = -24,
+    RpcClientNodeNotConnected = -29,
+    RpcClientInvalidIpOrSubnet = -30,
+    RpcClientP2pDisabled = -31,
+    RpcClientNodeCapacityReached = -34,
+    RpcClientMempoolDisabled = -33,
+
+    RpcWalletError = -4,
+    RpcWalletInsufficientFunds = -6,
+    RpcWalletInvalidLabelName = -11,
+    RpcWalletKeypoolRanOut = -12,
+    RpcWalletUnlockNeeded = -13,
+    RpcWalletPassphraseIncorrect = -14,
+    RpcWalletWrongEncState = -15,
+    RpcWalletEncryptionFailed = -16,
+    RpcWalletAlreadyUnlocked = -17,
+    RpcWalletNotFound = -18,
+    RpcWalletNotSpecified = -19,
+    RpcWalletAlreadyLoaded = -35,
+    RpcWalletAlreadyExisits = -36,
+
+    RpcForbiddenBySafeMode = -2,
+}

src/lib.rs

@@ -4,6 +4,9 @@ extern crate anyhow;
 #[macro_use]
 extern crate log;
 
+#[macro_use]
+extern crate num_derive;
+
 #[macro_use]
 extern crate serde_derive;