diff --git a/cmd/lncli/commands.go b/cmd/lncli/commands.go index bf54c7650..80601d4c6 100644 --- a/cmd/lncli/commands.go +++ b/cmd/lncli/commands.go @@ -139,7 +139,8 @@ var newAddressCommand = cli.Command{ Description: ` Generate a wallet new address. Address-types has to be one of: - p2wkh: Pay to witness key hash - - np2wkh: Pay to nested witness key hash`, + - np2wkh: Pay to nested witness key hash + - p2tr: Pay to taproot pubkey`, Action: actionDecorator(newAddress), } @@ -161,6 +162,8 @@ func newAddress(ctx *cli.Context) error { addrType = lnrpc.AddressType_WITNESS_PUBKEY_HASH case "np2wkh": addrType = lnrpc.AddressType_NESTED_PUBKEY_HASH + case "p2tr": + addrType = lnrpc.AddressType_TAPROOT_PUBKEY default: return fmt.Errorf("invalid address type %v, support address type "+ "are: p2wkh and np2wkh", stringAddrType) diff --git a/config_builder.go b/config_builder.go index 0e1bc5560..48498173d 100644 --- a/config_builder.go +++ b/config_builder.go @@ -1112,7 +1112,14 @@ func importWatchOnlyAccounts(wallet *wallet.Wallet, for _, scope := range scopes { addrSchema := waddrmgr.ScopeAddrMap[waddrmgr.KeyScopeBIP0084] - if scope.Scope.Purpose == waddrmgr.KeyScopeBIP0049Plus.Purpose { + + // We want witness pubkey hash by default, except for BIP49 + // where we want mixed and BIP86 where we want taproot address + // formats. + switch scope.Scope.Purpose { + case waddrmgr.KeyScopeBIP0049Plus.Purpose, + waddrmgr.KeyScopeBIP0086.Purpose: + addrSchema = waddrmgr.ScopeAddrMap[scope.Scope] } diff --git a/input/size.go b/input/size.go index ed6d4cb71..1b9e8d991 100644 --- a/input/size.go +++ b/input/size.go @@ -77,6 +77,18 @@ const ( // - pkscript (p2sh): 23 bytes P2SHOutputSize = 8 + 1 + P2SHSize + // P2TRSize 34 bytes + // - OP_0: 1 byte + // - OP_DATA: 1 byte (x-only public key length) + // - x-only public key length: 32 bytes + P2TRSize = 34 + + // P2TROutputSize 43 bytes + // - value: 8 bytes + // - var_int: 1 byte (pkscript_length) + // - pkscript (p2tr): 34 bytes + P2TROutputSize = 8 + 1 + P2TRSize + // P2PKHScriptSigSize 108 bytes // - OP_DATA: 1 byte (signature length) // - signature @@ -519,6 +531,19 @@ const ( // - witness_script_length: 1 byte // - witness_script (anchor_script) AnchorWitnessSize = 1 + 1 + 73 + 1 + AnchorScriptSize + + // TaprootKeyPathWitnessSize 66 bytes + // - NumberOfWitnessElements: 1 byte + // - sigLength: 1 byte + // - sig: 64 bytes + TaprootKeyPathWitnessSize = 1 + 1 + 64 + + // TaprootKeyPathCustomSighashWitnessSize 67 bytes + // - NumberOfWitnessElements: 1 byte + // - sigLength: 1 byte + // - sig: 64 bytes + // - sighashFlag: 1 byte + TaprootKeyPathCustomSighashWitnessSize = TaprootKeyPathWitnessSize + 1 ) // EstimateCommitTxWeight estimate commitment transaction weight depending on @@ -639,6 +664,15 @@ func (twe *TxWeightEstimator) AddP2WSHOutput() *TxWeightEstimator { return twe } +// AddP2TROutput updates the weight estimate to account for an additional native +// SegWit v1 P2TR output. +func (twe *TxWeightEstimator) AddP2TROutput() *TxWeightEstimator { + twe.outputSize += P2TROutputSize + twe.outputCount++ + + return twe +} + // AddP2SHOutput updates the weight estimate to account for an additional P2SH // output. func (twe *TxWeightEstimator) AddP2SHOutput() *TxWeightEstimator { diff --git a/input/witnessgen.go b/input/witnessgen.go index 9fea91799..7df388c7c 100644 --- a/input/witnessgen.go +++ b/input/witnessgen.go @@ -175,6 +175,11 @@ const ( // and CLTV locktime as part of the script enforced lease commitment // type. LeaseHtlcAcceptedSuccessSecondLevel StandardWitnessType = 20 + + // TaprootPubKeySpend is a witness type that allows us to spend a + // regular p2tr output that's sent to an output which is under complete + // control of the backing wallet. + TaprootPubKeySpend StandardWitnessType = 21 ) // String returns a human readable version of the target WitnessType. @@ -245,6 +250,9 @@ func (wt StandardWitnessType) String() string { case LeaseHtlcAcceptedSuccessSecondLevel: return "LeaseHtlcAcceptedSuccessSecondLevel" + case TaprootPubKeySpend: + return "TaprootPubKeySpend" + default: return fmt.Sprintf("Unknown WitnessType: %v", uint32(wt)) } @@ -388,6 +396,8 @@ func (wt StandardWitnessType) WitnessGenerator(signer Signer, case WitnessKeyHash: fallthrough + case TaprootPubKeySpend: + fallthrough case NestedWitnessKeyHash: return signer.ComputeInputScript(tx, desc) @@ -494,6 +504,9 @@ func (wt StandardWitnessType) SizeUpperBound() (int, bool, error) { // The revocation output of a second level output of an HTLC. case HtlcSecondLevelRevoke: return ToLocalPenaltyWitnessSize, false, nil + + case TaprootPubKeySpend: + return TaprootKeyPathCustomSighashWitnessSize, false, nil } return 0, false, fmt.Errorf("unexpected witness type: %v", wt) diff --git a/lnrpc/lightning.pb.go b/lnrpc/lightning.pb.go index bd6c0ab93..2fb6649a9 100644 --- a/lnrpc/lightning.pb.go +++ b/lnrpc/lightning.pb.go @@ -92,6 +92,7 @@ func (OutputScriptType) EnumDescriptor() ([]byte, []int) { // //- `p2wkh`: Pay to witness key hash (`WITNESS_PUBKEY_HASH` = 0) //- `np2wkh`: Pay to nested witness key hash (`NESTED_PUBKEY_HASH` = 1) +//- `p2tr`: Pay to taproot pubkey (`TAPROOT_PUBKEY` = 4) type AddressType int32 const ( @@ -99,6 +100,8 @@ const ( AddressType_NESTED_PUBKEY_HASH AddressType = 1 AddressType_UNUSED_WITNESS_PUBKEY_HASH AddressType = 2 AddressType_UNUSED_NESTED_PUBKEY_HASH AddressType = 3 + AddressType_TAPROOT_PUBKEY AddressType = 4 + AddressType_UNUSED_TAPROOT_PUBKEY AddressType = 5 ) // Enum value maps for AddressType. @@ -108,12 +111,16 @@ var ( 1: "NESTED_PUBKEY_HASH", 2: "UNUSED_WITNESS_PUBKEY_HASH", 3: "UNUSED_NESTED_PUBKEY_HASH", + 4: "TAPROOT_PUBKEY", + 5: "UNUSED_TAPROOT_PUBKEY", } AddressType_value = map[string]int32{ "WITNESS_PUBKEY_HASH": 0, "NESTED_PUBKEY_HASH": 1, "UNUSED_WITNESS_PUBKEY_HASH": 2, "UNUSED_NESTED_PUBKEY_HASH": 3, + "TAPROOT_PUBKEY": 4, + "UNUSED_TAPROOT_PUBKEY": 5, } ) @@ -18964,15 +18971,18 @@ var file_lightning_proto_rawDesc = []byte{ 0x53, 0x43, 0x52, 0x49, 0x50, 0x54, 0x5f, 0x54, 0x59, 0x50, 0x45, 0x5f, 0x4e, 0x4f, 0x4e, 0x5f, 0x53, 0x54, 0x41, 0x4e, 0x44, 0x41, 0x52, 0x44, 0x10, 0x07, 0x12, 0x1f, 0x0a, 0x1b, 0x53, 0x43, 0x52, 0x49, 0x50, 0x54, 0x5f, 0x54, 0x59, 0x50, 0x45, 0x5f, 0x57, 0x49, 0x54, 0x4e, 0x45, 0x53, - 0x53, 0x5f, 0x55, 0x4e, 0x4b, 0x4e, 0x4f, 0x57, 0x4e, 0x10, 0x08, 0x2a, 0x7d, 0x0a, 0x0b, 0x41, - 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x54, 0x79, 0x70, 0x65, 0x12, 0x17, 0x0a, 0x13, 0x57, 0x49, - 0x54, 0x4e, 0x45, 0x53, 0x53, 0x5f, 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0x54, 0x4d, 0x45, 0x4e, 0x54, 0x5f, 0x54, 0x59, 0x50, 0x45, 0x10, 0x00, 0x12, 0x0a, 0x0a, 0x06, 0x4c, 0x45, 0x47, diff --git a/lnrpc/lightning.proto b/lnrpc/lightning.proto index 6cf88b6bc..088e8f743 100644 --- a/lnrpc/lightning.proto +++ b/lnrpc/lightning.proto @@ -1138,12 +1138,15 @@ message ListUnspentResponse { - `p2wkh`: Pay to witness key hash (`WITNESS_PUBKEY_HASH` = 0) - `np2wkh`: Pay to nested witness key hash (`NESTED_PUBKEY_HASH` = 1) +- `p2tr`: Pay to taproot pubkey (`TAPROOT_PUBKEY` = 4) */ enum AddressType { WITNESS_PUBKEY_HASH = 0; NESTED_PUBKEY_HASH = 1; UNUSED_WITNESS_PUBKEY_HASH = 2; UNUSED_NESTED_PUBKEY_HASH = 3; + TAPROOT_PUBKEY = 4; + UNUSED_TAPROOT_PUBKEY = 5; } message NewAddressRequest { diff --git a/lnrpc/lightning.swagger.json b/lnrpc/lightning.swagger.json index 85f004bc4..cdc66dad3 100644 --- a/lnrpc/lightning.swagger.json +++ b/lnrpc/lightning.swagger.json @@ -1801,7 +1801,9 @@ "WITNESS_PUBKEY_HASH", "NESTED_PUBKEY_HASH", "UNUSED_WITNESS_PUBKEY_HASH", - "UNUSED_NESTED_PUBKEY_HASH" + "UNUSED_NESTED_PUBKEY_HASH", + "TAPROOT_PUBKEY", + "UNUSED_TAPROOT_PUBKEY" ], "default": "WITNESS_PUBKEY_HASH" }, @@ -2923,10 +2925,12 @@ "WITNESS_PUBKEY_HASH", "NESTED_PUBKEY_HASH", "UNUSED_WITNESS_PUBKEY_HASH", - "UNUSED_NESTED_PUBKEY_HASH" + "UNUSED_NESTED_PUBKEY_HASH", + "TAPROOT_PUBKEY", + "UNUSED_TAPROOT_PUBKEY" ], "default": "WITNESS_PUBKEY_HASH", - "description": "- `p2wkh`: Pay to witness key hash (`WITNESS_PUBKEY_HASH` = 0)\n- `np2wkh`: Pay to nested witness key hash (`NESTED_PUBKEY_HASH` = 1)", + "description": "- `p2wkh`: Pay to witness key hash (`WITNESS_PUBKEY_HASH` = 0)\n- `np2wkh`: Pay to nested witness key hash (`NESTED_PUBKEY_HASH` = 1)\n- `p2tr`: Pay to taproot pubkey (`TAPROOT_PUBKEY` = 4)", "title": "`AddressType` has to be one of:" }, "lnrpcAmount": { diff --git a/lnrpc/marshall_utils.go b/lnrpc/marshall_utils.go index f2567c8f8..4e79f7dea 100644 --- a/lnrpc/marshall_utils.go +++ b/lnrpc/marshall_utils.go @@ -94,6 +94,9 @@ func MarshalUtxos(utxos []*lnwallet.Utxo, activeNetParams *chaincfg.Params) ( case lnwallet.NestedWitnessPubKey: addrType = AddressType_NESTED_PUBKEY_HASH + case lnwallet.TaprootPubkey: + addrType = AddressType_TAPROOT_PUBKEY + case lnwallet.UnknownAddressType: continue diff --git a/lnrpc/walletrpc/walletkit.pb.go b/lnrpc/walletrpc/walletkit.pb.go index baddd9d11..9e3daf086 100644 --- a/lnrpc/walletrpc/walletkit.pb.go +++ b/lnrpc/walletrpc/walletkit.pb.go @@ -29,6 +29,7 @@ const ( AddressType_WITNESS_PUBKEY_HASH AddressType = 1 AddressType_NESTED_WITNESS_PUBKEY_HASH AddressType = 2 AddressType_HYBRID_NESTED_WITNESS_PUBKEY_HASH AddressType = 3 + AddressType_TAPROOT_PUBKEY AddressType = 4 ) // Enum value maps for AddressType. @@ -38,12 +39,14 @@ var ( 1: "WITNESS_PUBKEY_HASH", 2: "NESTED_WITNESS_PUBKEY_HASH", 3: "HYBRID_NESTED_WITNESS_PUBKEY_HASH", + 4: "TAPROOT_PUBKEY", } AddressType_value = map[string]int32{ "UNKNOWN": 0, "WITNESS_PUBKEY_HASH": 1, "NESTED_WITNESS_PUBKEY_HASH": 2, "HYBRID_NESTED_WITNESS_PUBKEY_HASH": 3, + "TAPROOT_PUBKEY": 4, } ) @@ -3207,139 +3210,141 @@ var file_walletrpc_walletkit_proto_rawDesc = []byte{ 0x65, 0x64, 0x5f, 0x75, 0x74, 0x78, 0x6f, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x14, 0x2e, 0x77, 0x61, 0x6c, 0x6c, 0x65, 0x74, 0x72, 0x70, 0x63, 0x2e, 0x55, 0x74, 0x78, 0x6f, 0x4c, 0x65, 0x61, 0x73, 0x65, 0x52, 0x0b, 0x6c, 0x6f, 0x63, 0x6b, 0x65, 0x64, 0x55, 0x74, 0x78, 0x6f, - 0x73, 0x2a, 0x7a, 0x0a, 0x0b, 0x41, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x54, 0x79, 0x70, 0x65, - 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x4e, 0x4b, 0x4e, 0x4f, 0x57, 0x4e, 0x10, 0x00, 0x12, 0x17, 0x0a, - 0x13, 0x57, 0x49, 0x54, 0x4e, 0x45, 0x53, 0x53, 0x5f, 0x50, 0x55, 0x42, 0x4b, 0x45, 0x59, 0x5f, - 0x48, 0x41, 0x53, 0x48, 0x10, 0x01, 0x12, 0x1e, 0x0a, 0x1a, 0x4e, 0x45, 0x53, 0x54, 0x45, 0x44, - 0x5f, 0x57, 0x49, 0x54, 0x4e, 0x45, 0x53, 0x53, 0x5f, 0x50, 0x55, 0x42, 0x4b, 0x45, 0x59, 0x5f, - 0x48, 0x41, 0x53, 0x48, 0x10, 0x02, 0x12, 0x25, 0x0a, 0x21, 0x48, 0x59, 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a/lnrpc/walletrpc/walletkit.swagger.json +++ b/lnrpc/walletrpc/walletkit.swagger.json @@ -52,7 +52,8 @@ "UNKNOWN", "WITNESS_PUBKEY_HASH", "NESTED_WITNESS_PUBKEY_HASH", - "HYBRID_NESTED_WITNESS_PUBKEY_HASH" + "HYBRID_NESTED_WITNESS_PUBKEY_HASH", + "TAPROOT_PUBKEY" ], "default": "UNKNOWN" } @@ -695,10 +696,12 @@ "WITNESS_PUBKEY_HASH", "NESTED_PUBKEY_HASH", "UNUSED_WITNESS_PUBKEY_HASH", - "UNUSED_NESTED_PUBKEY_HASH" + "UNUSED_NESTED_PUBKEY_HASH", + "TAPROOT_PUBKEY", + "UNUSED_TAPROOT_PUBKEY" ], "default": "WITNESS_PUBKEY_HASH", - "description": "- `p2wkh`: Pay to witness key hash (`WITNESS_PUBKEY_HASH` = 0)\n- `np2wkh`: Pay to nested witness key hash (`NESTED_PUBKEY_HASH` = 1)", + "description": "- `p2wkh`: Pay to witness key hash (`WITNESS_PUBKEY_HASH` = 0)\n- `np2wkh`: Pay to nested witness key hash (`NESTED_PUBKEY_HASH` = 1)\n- `p2tr`: Pay to taproot pubkey (`TAPROOT_PUBKEY` = 4)", "title": "`AddressType` has to be one of:" }, "lnrpcOutPoint": { @@ -1015,7 +1018,8 @@ "UNKNOWN", "WITNESS_PUBKEY_HASH", "NESTED_WITNESS_PUBKEY_HASH", - "HYBRID_NESTED_WITNESS_PUBKEY_HASH" + "HYBRID_NESTED_WITNESS_PUBKEY_HASH", + "TAPROOT_PUBKEY" ], "default": "UNKNOWN" }, diff --git a/lnrpc/walletrpc/walletkit_server.go b/lnrpc/walletrpc/walletkit_server.go index 1ee37276f..946f1298f 100644 --- a/lnrpc/walletrpc/walletkit_server.go +++ b/lnrpc/walletrpc/walletkit_server.go @@ -1347,6 +1347,9 @@ func marshalWalletAccount(internalScope waddrmgr.KeyScope, case waddrmgr.KeyScopeBIP0084: addrType = AddressType_WITNESS_PUBKEY_HASH + case waddrmgr.KeyScopeBIP0086: + addrType = AddressType_TAPROOT_PUBKEY + case internalScope: addrType = AddressType_WITNESS_PUBKEY_HASH @@ -1405,6 +1408,10 @@ func (w *WalletKit) ListAccounts(ctx context.Context, keyScope := waddrmgr.KeyScopeBIP0049Plus keyScopeFilter = &keyScope + case AddressType_TAPROOT_PUBKEY: + keyScope := waddrmgr.KeyScopeBIP0086 + keyScopeFilter = &keyScope + default: return nil, fmt.Errorf("unhandled address type %v", req.AddressType) } @@ -1460,6 +1467,10 @@ func parseAddrType(addrType AddressType, addrTyp := waddrmgr.WitnessPubKey return &addrTyp, nil + case AddressType_TAPROOT_PUBKEY: + addrTyp := waddrmgr.TaprootPubKey + return &addrTyp, nil + default: return nil, fmt.Errorf("unhandled address type %v", addrType) } diff --git a/lntest/itest/lnd_remote_signer_test.go b/lntest/itest/lnd_remote_signer_test.go index 18027f5c2..ecd564519 100644 --- a/lntest/itest/lnd_remote_signer_test.go +++ b/lntest/itest/lnd_remote_signer_test.go @@ -24,7 +24,7 @@ var ( accounts = []*lnrpc.WatchOnlyAccount{{ Purpose: waddrmgr.KeyScopeBIP0049Plus.Purpose, - // We always use the mainnet coin type for our BIP49/84 + // We always use the mainnet coin type for our BIP49/84/86 // addresses! CoinType: 0, Account: 0, @@ -33,13 +33,22 @@ var ( "FPhTq", }, { Purpose: waddrmgr.KeyScopeBIP0084.Purpose, - // We always use the mainnet coin type for our BIP49/84 + // We always use the mainnet coin type for our BIP49/84/86 // addresses! CoinType: 0, Account: 0, Xpub: "tpubDDWAWrSLRSFrG1KdqXMQQyTKYGSKLKaY7gxpvK7RdV3e3Dkhvu" + "W2GgsFvsPN4RGmuoYtUgZ1LHZE8oftz7T4mzc1BxGt5rt8zJcVQi" + "KTPPV", + }, { + Purpose: waddrmgr.KeyScopeBIP0086.Purpose, + // We always use the mainnet coin type for our BIP49/84/86 + // addresses! + CoinType: 0, + Account: 0, + Xpub: "tpubDDtdXpdJFU2zFKWHJwe5M2WtYtcV7qSWtKohT9VP9zarNSwKnm" + + "kwDQawsu1vUf9xwXhUDYXbdUqpcrRTn9bLyW4BAVRimZ4K7r5o1J" + + "S924u", }} ) diff --git a/lntest/itest/lnd_taproot_test.go b/lntest/itest/lnd_taproot_test.go new file mode 100644 index 000000000..89f24de86 --- /dev/null +++ b/lntest/itest/lnd_taproot_test.go @@ -0,0 +1,83 @@ +package itest + +import ( + "context" + + "github.com/btcsuite/btcd/btcutil" + "github.com/lightningnetwork/lnd/lnrpc" + "github.com/lightningnetwork/lnd/lntest" + "github.com/stretchr/testify/require" +) + +// testTaproot ensures that the daemon can send to and spend from taproot (p2tr) +// outputs. +func testTaproot(net *lntest.NetworkHarness, t *harnessTest) { + ctxb := context.Background() + ctxt, cancel := context.WithTimeout(ctxb, defaultTimeout) + defer cancel() + + // We'll start the test by sending Alice some coins, which she'll use to + // send to herself on a p2tr output. + net.SendCoins(t.t, btcutil.SatoshiPerBitcoin, net.Alice) + + // Let's create a p2tr address now. + p2trResp, err := net.Alice.NewAddress(ctxt, &lnrpc.NewAddressRequest{ + Type: lnrpc.AddressType_TAPROOT_PUBKEY, + }) + require.NoError(t.t, err) + + // Assert this is a segwit v1 address that starts with bcrt1p. + require.Contains( + t.t, p2trResp.Address, net.Miner.ActiveNet.Bech32HRPSegwit+"1p", + ) + + // Send the coins from Alice's wallet to her own, but to the new p2tr + // address. + _, err = net.Alice.SendCoins(ctxt, &lnrpc.SendCoinsRequest{ + Addr: p2trResp.Address, + Amount: 0.5 * btcutil.SatoshiPerBitcoin, + }) + require.NoError(t.t, err) + + txid, err := waitForTxInMempool(net.Miner.Client, defaultTimeout) + require.NoError(t.t, err) + + // Wait until bob has seen the tx and considers it as owned. + p2trOutputIndex := getOutputIndex(t, net.Miner, txid, p2trResp.Address) + op := &lnrpc.OutPoint{ + TxidBytes: txid[:], + OutputIndex: uint32(p2trOutputIndex), + } + assertWalletUnspent(t, net.Alice, op) + + // Mine a block to clean up the mempool. + mineBlocks(t, net, 1, 1) + + // Let's sweep the whole wallet to a new p2tr address, making sure we + // can sign transactions with v0 and v1 inputs. + p2trResp, err = net.Alice.NewAddress(ctxt, &lnrpc.NewAddressRequest{ + Type: lnrpc.AddressType_TAPROOT_PUBKEY, + }) + require.NoError(t.t, err) + + _, err = net.Alice.SendCoins(ctxt, &lnrpc.SendCoinsRequest{ + Addr: p2trResp.Address, + SendAll: true, + }) + require.NoError(t.t, err) + + // Wait until the wallet cleaning sweep tx is found. + txid, err = waitForTxInMempool(net.Miner.Client, minerMempoolTimeout) + require.NoError(t.t, err) + + // Wait until bob has seen the tx and considers it as owned. + p2trOutputIndex = getOutputIndex(t, net.Miner, txid, p2trResp.Address) + op = &lnrpc.OutPoint{ + TxidBytes: txid[:], + OutputIndex: uint32(p2trOutputIndex), + } + assertWalletUnspent(t, net.Alice, op) + + // Mine another block to clean up the mempool. + mineBlocks(t, net, 1, 1) +} diff --git a/lntest/itest/lnd_test_list_on_test.go b/lntest/itest/lnd_test_list_on_test.go index 72c2ed0d0..28a3a9b6a 100644 --- a/lntest/itest/lnd_test_list_on_test.go +++ b/lntest/itest/lnd_test_list_on_test.go @@ -387,4 +387,8 @@ var allTestCases = []*testCase{ name: "3rd party anchor spend", test: testAnchorThirdPartySpend, }, + { + name: "taproot", + test: testTaproot, + }, } diff --git a/lnwallet/btcwallet/btcwallet.go b/lnwallet/btcwallet/btcwallet.go index d6a63b0b8..5a19f5cfb 100644 --- a/lnwallet/btcwallet/btcwallet.go +++ b/lnwallet/btcwallet/btcwallet.go @@ -461,6 +461,8 @@ func (b *BtcWallet) keyScopeForAccountAddr(accountName string, addrKeyScope = waddrmgr.KeyScopeBIP0084 case lnwallet.NestedWitnessPubKey: addrKeyScope = waddrmgr.KeyScopeBIP0049Plus + case lnwallet.TaprootPubkey: + addrKeyScope = waddrmgr.KeyScopeBIP0086 default: return waddrmgr.KeyScope{}, 0, fmt.Errorf("unknown address type") @@ -575,7 +577,7 @@ func (b *BtcWallet) ListAccounts(name string, // Only the name filter was provided. case name != "" && keyScope == nil: // If the name corresponds to the default or imported accounts, - // we'll return them for both of our supported key scopes. + // we'll return them for all our supported key scopes. if name == lnwallet.DefaultAccountName || name == waddrmgr.ImportedAddrAccountName { @@ -594,6 +596,14 @@ func (b *BtcWallet) ListAccounts(name string, return nil, err } res = append(res, a2) + + a3, err := b.wallet.AccountPropertiesByName( + waddrmgr.KeyScopeBIP0086, name, + ) + if err != nil { + return nil, err + } + res = append(res, a3) break } @@ -642,6 +652,15 @@ func (b *BtcWallet) ListAccounts(name string, res = append(res, &account.AccountProperties) } + accounts, err = b.wallet.Accounts(waddrmgr.KeyScopeBIP0086) + if err != nil { + return nil, err + } + for _, account := range accounts.Accounts { + account := account + res = append(res, &account.AccountProperties) + } + accounts, err = b.wallet.Accounts(waddrmgr.KeyScope{ Purpose: keychain.BIP0043Purpose, Coin: b.cfg.CoinType, @@ -912,10 +931,13 @@ func (b *BtcWallet) ListUnspentWitness(minConfs, maxConfs int32, // wallet are nested p2pkh. We can't check the redeem script because // the btcwallet service does not include it. addressType = lnwallet.NestedWitnessPubKey + } else if txscript.IsPayToTaproot(pkScript) { + addressType = lnwallet.TaprootPubkey } if addressType == lnwallet.WitnessPubKey || - addressType == lnwallet.NestedWitnessPubKey { + addressType == lnwallet.NestedWitnessPubKey || + addressType == lnwallet.TaprootPubkey { txid, err := chainhash.NewHashFromStr(output.TxID) if err != nil { diff --git a/lnwallet/btcwallet/signer.go b/lnwallet/btcwallet/signer.go index c9c3c6c44..cbbb7283a 100644 --- a/lnwallet/btcwallet/signer.go +++ b/lnwallet/btcwallet/signer.go @@ -129,7 +129,8 @@ func (b *BtcWallet) deriveKeyByBIP32Path(path []uint32) (*btcec.PrivateKey, // Is it a standard, BIP defined purpose that the wallet understands? case waddrmgr.KeyScopeBIP0044.Purpose, waddrmgr.KeyScopeBIP0049Plus.Purpose, - waddrmgr.KeyScopeBIP0084.Purpose: + waddrmgr.KeyScopeBIP0084.Purpose, + waddrmgr.KeyScopeBIP0086.Purpose: // We're going to continue below the switch statement to avoid // unnecessary indentation for this default case. diff --git a/lnwallet/interface.go b/lnwallet/interface.go index f91b1ae81..e9c06b5e2 100644 --- a/lnwallet/interface.go +++ b/lnwallet/interface.go @@ -42,6 +42,9 @@ const ( // NestedWitnessPubKey represents a p2sh output which is itself a // nested p2wkh output. NestedWitnessPubKey + + // TaprootPubkey represents a p2tr key path spending address. + TaprootPubkey ) var ( diff --git a/rpcserver.go b/rpcserver.go index b3696167f..6a08b342d 100644 --- a/rpcserver.go +++ b/rpcserver.go @@ -1496,6 +1496,14 @@ func (r *rpcServer) NewAddress(ctx context.Context, return nil, err } + case lnrpc.AddressType_TAPROOT_PUBKEY: + addr, err = r.server.cc.Wallet.NewAddress( + lnwallet.TaprootPubkey, false, account, + ) + if err != nil { + return nil, err + } + case lnrpc.AddressType_UNUSED_WITNESS_PUBKEY_HASH: addr, err = r.server.cc.Wallet.LastUnusedAddress( lnwallet.WitnessPubKey, account, @@ -1511,6 +1519,14 @@ func (r *rpcServer) NewAddress(ctx context.Context, if err != nil { return nil, err } + + case lnrpc.AddressType_UNUSED_TAPROOT_PUBKEY: + addr, err = r.server.cc.Wallet.LastUnusedAddress( + lnwallet.TaprootPubkey, account, + ) + if err != nil { + return nil, err + } } rpcsLog.Debugf("[newaddress] account=%v type=%v addr=%v", account, diff --git a/sweep/sweeper_test.go b/sweep/sweeper_test.go index a541ae6f5..5f4830711 100644 --- a/sweep/sweeper_test.go +++ b/sweep/sweeper_test.go @@ -355,7 +355,7 @@ func assertTxFeeRate(t *testing.T, tx *wire.MsgTx, outputAmt := tx.TxOut[0].Value fee := btcutil.Amount(inputAmt - outputAmt) - _, estimator := getWeightEstimate(inputs, nil, 0) + _, estimator := getWeightEstimate(inputs, nil, 0, nil) txWeight := estimator.weight() expectedFee := expectedFeeRate.FeeForWeight(int64(txWeight)) diff --git a/sweep/txgenerator.go b/sweep/txgenerator.go index 76e959380..95da8a764 100644 --- a/sweep/txgenerator.go +++ b/sweep/txgenerator.go @@ -139,7 +139,9 @@ func createSweepTx(inputs []input.Input, outputs []*wire.TxOut, feePerKw chainfee.SatPerKWeight, signer input.Signer) (*wire.MsgTx, error) { - inputs, estimator := getWeightEstimate(inputs, outputs, feePerKw) + inputs, estimator := getWeightEstimate( + inputs, outputs, feePerKw, changePkScript, + ) txFee := estimator.fee() var ( @@ -312,7 +314,8 @@ func createSweepTx(inputs []input.Input, outputs []*wire.TxOut, // getWeightEstimate returns a weight estimate for the given inputs. // Additionally, it returns counts for the number of csv and cltv inputs. func getWeightEstimate(inputs []input.Input, outputs []*wire.TxOut, - feeRate chainfee.SatPerKWeight) ([]input.Input, *weightEstimator) { + feeRate chainfee.SatPerKWeight, outputPkScript []byte) ([]input.Input, + *weightEstimator) { // We initialize a weight estimator so we can accurately asses the // amount of fees we need to pay for this sweep transaction. @@ -327,14 +330,18 @@ func getWeightEstimate(inputs []input.Input, outputs []*wire.TxOut, } // If there is any leftover change after paying to the given outputs - // and required outputs, it will go to a single segwit p2wkh address. - // This will be our change address, so ensure it contributes to our - // weight estimate. Note that if we have other outputs, we might end up - // creating a sweep tx without a change output. It is okay to add the + // and required outputs, it will go to a single segwit p2wkh or p2tr + // address. This will be our change address, so ensure it contributes to + // our weight estimate. Note that if we have other outputs, we might end + // up creating a sweep tx without a change output. It is okay to add the // change output to the weight estimate regardless, since the estimated // fee will just be subtracted from this already dust output, and // trimmed. - weightEstimate.addP2WKHOutput() + if txscript.IsPayToTaproot(outputPkScript) { + weightEstimate.addP2TROutput() + } else { + weightEstimate.addP2WKHOutput() + } // For each output, use its witness type to determine the estimate // weight of its witness, and add it to the proper set of spendable diff --git a/sweep/txgenerator_test.go b/sweep/txgenerator_test.go index f8a6b8ac4..960da63d3 100644 --- a/sweep/txgenerator_test.go +++ b/sweep/txgenerator_test.go @@ -39,7 +39,7 @@ func TestWeightEstimate(t *testing.T) { )) } - _, estimator := getWeightEstimate(inputs, nil, 0) + _, estimator := getWeightEstimate(inputs, nil, 0, nil) weight := int64(estimator.weight()) if weight != expectedWeight { t.Fatalf("unexpected weight. expected %d but got %d.", diff --git a/sweep/walletsweep.go b/sweep/walletsweep.go index e541c190e..6044b85f8 100644 --- a/sweep/walletsweep.go +++ b/sweep/walletsweep.go @@ -255,6 +255,10 @@ func CraftSweepAllTx(feeRate chainfee.SatPerKWeight, blockHeight uint32, case lnwallet.NestedWitnessPubKey: witnessType = input.NestedWitnessKeyHash + case lnwallet.TaprootPubkey: + witnessType = input.TaprootPubKeySpend + signDesc.HashType = txscript.SigHashDefault + // All other output types we count as unknown and will fail to // sweep. default: diff --git a/sweep/weight_estimator.go b/sweep/weight_estimator.go index ad8c978ba..aba61cd92 100644 --- a/sweep/weight_estimator.go +++ b/sweep/weight_estimator.go @@ -77,6 +77,12 @@ func (w *weightEstimator) addP2WKHOutput() { w.estimator.AddP2WKHOutput() } +// addP2TROutput updates the weight estimate to account for an additional native +// SegWit v1 P2TR output. +func (w *weightEstimator) addP2TROutput() { + w.estimator.AddP2TROutput() +} + // addOutput updates the weight estimate to account for the known // output given. func (w *weightEstimator) addOutput(txOut *wire.TxOut) {