ttInvoke part 1

Builds/CMake/RippledCore.cmake

@@ -441,6 +441,7 @@ target_sources (rippled PRIVATE
   src/ripple/app/tx/impl/SetRegularKey.cpp
   src/ripple/app/tx/impl/SetHook.cpp
   src/ripple/app/tx/impl/ClaimReward.cpp
+  src/ripple/app/tx/impl/Invoke.cpp
   src/ripple/app/tx/impl/SetSignerList.cpp
   src/ripple/app/tx/impl/SetTrust.cpp
   src/ripple/app/tx/impl/SignerEntries.cpp

src/ripple/app/hook/applyHook.h

@@ -66,7 +66,8 @@ namespace hook
         {ttNFTOKEN_CREATE_OFFER,    tshROLLBACK },
         {ttNFTOKEN_CANCEL_OFFER,    tshCOLLECT  },
         {ttNFTOKEN_ACCEPT_OFFER,    tshROLLBACK },
-        {ttCLAIM_REWARD,            tshROLLBACK }
+        {ttCLAIM_REWARD,            tshROLLBACK },
+        {ttINVOKE,                  tshROLLBACK }
     };
 
 

src/ripple/app/hook/impl/applyHook.cpp

@@ -202,6 +202,7 @@ namespace hook
             case ttCHECK_CREATE:
             case ttACCOUNT_DELETE:
             case ttPAYCHAN_CREATE:
+            case ttINVOKE:
             {
                 ADD_TSH(*destAcc, canRollback);
                 break;

src/ripple/app/tx/impl/applySteps.cpp

@@ -41,6 +41,7 @@
 #include <ripple/app/tx/impl/SetSignerList.h>
 #include <ripple/app/tx/impl/SetTrust.h>
 #include <ripple/app/tx/impl/SetHook.h>
+#include <ripple/app/tx/impl/Invoke.h>
 
 namespace ripple {
 
@@ -153,6 +154,8 @@ invoke_preflight(PreflightContext const& ctx)
             return invoke_preflight_helper<NFTokenAcceptOffer>(ctx);
         case ttCLAIM_REWARD:
             return invoke_preflight_helper<ClaimReward>(ctx);
+        case ttINVOKE:
+            return invoke_preflight_helper<Invoke>(ctx);
         default:
             assert(false);
             return {temUNKNOWN, TxConsequences{temUNKNOWN}};
@@ -260,6 +263,8 @@ invoke_preclaim(PreclaimContext const& ctx)
             return invoke_preclaim<NFTokenAcceptOffer>(ctx);
         case ttCLAIM_REWARD:
             return invoke_preclaim<ClaimReward>(ctx);
+        case ttINVOKE:
+            return invoke_preclaim<Invoke>(ctx);
         default:
             assert(false);
             return temUNKNOWN;
@@ -328,6 +333,8 @@ invoke_calculateBaseFee(ReadView const& view, STTx const& tx)
             return NFTokenAcceptOffer::calculateBaseFee(view, tx);
         case ttCLAIM_REWARD:
             return ClaimReward::calculateBaseFee(view, tx);
+        case ttINVOKE:
+            return Invoke::calculateBaseFee(view, tx);
         default:
             assert(false);
             return FeeUnit64{0};
@@ -490,6 +497,10 @@ invoke_apply(ApplyContext& ctx)
             ClaimReward p(ctx);
             return p();
         }
+        case ttINVOKE: {
+            Invoke p(ctx);
+            return p();
+        }
         default:
             assert(false);
             return {temUNKNOWN, false};

src/ripple/protocol/SField.h

@@ -519,6 +519,7 @@ extern SF_VL const sfHookStateData;
 extern SF_VL const sfHookReturnString;
 extern SF_VL const sfHookParameterName;
 extern SF_VL const sfHookParameterValue;
+extern SF_VL const sfBlob;
 
 // account
 extern SF_ACCOUNT const sfAccount;

src/ripple/protocol/TxFormats.h

@@ -142,6 +142,9 @@ enum TxType : std::uint16_t
     /** This transaction resets accumulator/counters and claims a reward for holding an average balance
      * from a specified hook */
     ttCLAIM_REWARD = 98,
+    
+    /** This transaction invokes a hook, providing arbitrary data. Essentially as a 0 drop payment. **/
+    ttINVOKE = 99,
 
     /** This system-generated transaction type is used to update the status of the various amendments.
 

src/ripple/protocol/impl/SField.cpp

@@ -270,6 +270,7 @@ CONSTRUCT_TYPED_SFIELD(sfHookStateData,         "HookStateData",        VL,
 CONSTRUCT_TYPED_SFIELD(sfHookReturnString,      "HookReturnString",     VL,        23);
 CONSTRUCT_TYPED_SFIELD(sfHookParameterName,     "HookParameterName",    VL,        24);
 CONSTRUCT_TYPED_SFIELD(sfHookParameterValue,    "HookParameterValue",   VL,        25);
+CONSTRUCT_TYPED_SFIELD(sfBlob,                  "Blob",                 VL,        26);
 
 // account
 CONSTRUCT_TYPED_SFIELD(sfAccount,               "Account",              ACCOUNT,    1);

src/ripple/protocol/impl/TxFormats.cpp

@@ -350,6 +350,15 @@ TxFormats::TxFormats()
             {sfTicketSequence, soeOPTIONAL},
         },
         commonFields);
+
+    add(jss::Invoke,
+        ttINVOKE,
+        {
+            {sfBlob, soeOPTIONAL},
+            {sfHookParameters, soeOPTIONAL},
+            {sfDestination, soeREQUIRED}
+        },
+        commonFields);
 }
 
 TxFormats const&

src/ripple/protocol/jss.h

@@ -83,6 +83,7 @@ JSS(HookParameterValue);     // field
 JSS(HookParameter);          // field
 JSS(HookGrant);              // field
 JSS(Invalid);                //
+JSS(Invoke);                 // transaction type
 JSS(LastLedgerSequence);     // in: TransactionSign; field
 JSS(LedgerHashes);           // ledger type.
 JSS(LimitAmount);            // field.