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-rw-r--r--src/rpc/rawtransaction.cpp26
1 files changed, 21 insertions, 5 deletions
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index 0fc5e89809..0d624c2631 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -14,6 +14,7 @@
#include "merkleblock.h"
#include "net.h"
#include "policy/policy.h"
+#include "policy/rbf.h"
#include "primitives/transaction.h"
#include "rpc/server.h"
#include "script/script.h"
@@ -287,9 +288,9 @@ UniValue verifytxoutproof(const JSONRPCRequest& request)
UniValue createrawtransaction(const JSONRPCRequest& request)
{
- if (request.fHelp || request.params.size() < 2 || request.params.size() > 3)
+ if (request.fHelp || request.params.size() < 2 || request.params.size() > 4)
throw std::runtime_error(
- "createrawtransaction [{\"txid\":\"id\",\"vout\":n},...] {\"address\":amount,\"data\":\"hex\",...} ( locktime )\n"
+ "createrawtransaction [{\"txid\":\"id\",\"vout\":n},...] {\"address\":amount,\"data\":\"hex\",...} ( locktime ) ( optintorbf )\n"
"\nCreate a transaction spending the given inputs and creating new outputs.\n"
"Outputs can be addresses or data.\n"
"Returns hex-encoded raw transaction.\n"
@@ -313,6 +314,7 @@ UniValue createrawtransaction(const JSONRPCRequest& request)
" ,...\n"
" }\n"
"3. locktime (numeric, optional, default=0) Raw locktime. Non-0 value also locktime-activates inputs\n"
+ "4. optintorbf (boolean, optional, default=false) Allow this transaction to be replaced by a transaction with higher fees. If provided, it is an error if explicit sequence numbers are incompatible.\n"
"\nResult:\n"
"\"transaction\" (string) hex string of the transaction\n"
@@ -339,6 +341,8 @@ UniValue createrawtransaction(const JSONRPCRequest& request)
rawTx.nLockTime = nLockTime;
}
+ bool rbfOptIn = request.params.size() > 3 ? request.params[3].isTrue() : false;
+
for (unsigned int idx = 0; idx < inputs.size(); idx++) {
const UniValue& input = inputs[idx];
const UniValue& o = input.get_obj();
@@ -352,16 +356,24 @@ UniValue createrawtransaction(const JSONRPCRequest& request)
if (nOutput < 0)
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, vout must be positive");
- uint32_t nSequence = (rawTx.nLockTime ? std::numeric_limits<uint32_t>::max() - 1 : std::numeric_limits<uint32_t>::max());
+ uint32_t nSequence;
+ if (rbfOptIn) {
+ nSequence = MAX_BIP125_RBF_SEQUENCE;
+ } else if (rawTx.nLockTime) {
+ nSequence = std::numeric_limits<uint32_t>::max() - 1;
+ } else {
+ nSequence = std::numeric_limits<uint32_t>::max();
+ }
// set the sequence number if passed in the parameters object
const UniValue& sequenceObj = find_value(o, "sequence");
if (sequenceObj.isNum()) {
int64_t seqNr64 = sequenceObj.get_int64();
- if (seqNr64 < 0 || seqNr64 > std::numeric_limits<uint32_t>::max())
+ if (seqNr64 < 0 || seqNr64 > std::numeric_limits<uint32_t>::max()) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, sequence number is out of range");
- else
+ } else {
nSequence = (uint32_t)seqNr64;
+ }
}
CTxIn in(COutPoint(txid, nOutput), CScript(), nSequence);
@@ -395,6 +407,10 @@ UniValue createrawtransaction(const JSONRPCRequest& request)
}
}
+ if (request.params.size() > 3 && rbfOptIn != SignalsOptInRBF(rawTx)) {
+ throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter combination: Sequence number(s) contradict optintorbf option");
+ }
+
return EncodeHexTx(rawTx);
}