1 //! keysinterface provides keys into rust-lightning and defines some useful enums which describe
2 //! spendable on-chain outputs which the user owns and is responsible for using just as any other
3 //! on-chain output which is theirs.
6 use bitcoin::hashes::Hash;
10 use lightning::chain::keysinterface::DelayedPaymentOutputDescriptor as nativeDelayedPaymentOutputDescriptorImport;
11 type nativeDelayedPaymentOutputDescriptor = nativeDelayedPaymentOutputDescriptorImport;
13 /// Information about a spendable output to a P2WSH script. See
14 /// SpendableOutputDescriptor::DelayedPaymentOutput for more details on how to spend this.
17 pub struct DelayedPaymentOutputDescriptor {
18 /// Nearly everywhere, inner must be non-null, however in places where
19 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
20 pub inner: *mut nativeDelayedPaymentOutputDescriptor,
24 impl Drop for DelayedPaymentOutputDescriptor {
26 if self.is_owned && !self.inner.is_null() {
27 let _ = unsafe { Box::from_raw(self.inner) };
32 pub extern "C" fn DelayedPaymentOutputDescriptor_free(this_ptr: DelayedPaymentOutputDescriptor) { }
34 /// Used only if an object of this type is returned as a trait impl by a method
35 extern "C" fn DelayedPaymentOutputDescriptor_free_void(this_ptr: *mut c_void) {
36 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeDelayedPaymentOutputDescriptor); }
39 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
40 impl DelayedPaymentOutputDescriptor {
41 pub(crate) fn take_inner(mut self) -> *mut nativeDelayedPaymentOutputDescriptor {
42 assert!(self.is_owned);
44 self.inner = std::ptr::null_mut();
48 /// The outpoint which is spendable
50 pub extern "C" fn DelayedPaymentOutputDescriptor_get_outpoint(this_ptr: &DelayedPaymentOutputDescriptor) -> crate::chain::transaction::OutPoint {
51 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.outpoint;
52 crate::chain::transaction::OutPoint { inner: unsafe { ( (&((*inner_val)) as *const _) as *mut _) }, is_owned: false }
54 /// The outpoint which is spendable
56 pub extern "C" fn DelayedPaymentOutputDescriptor_set_outpoint(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: crate::chain::transaction::OutPoint) {
57 unsafe { &mut *this_ptr.inner }.outpoint = *unsafe { Box::from_raw(val.take_inner()) };
59 /// Per commitment point to derive delayed_payment_key by key holder
61 pub extern "C" fn DelayedPaymentOutputDescriptor_get_per_commitment_point(this_ptr: &DelayedPaymentOutputDescriptor) -> crate::c_types::PublicKey {
62 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.per_commitment_point;
63 crate::c_types::PublicKey::from_rust(&(*inner_val))
65 /// Per commitment point to derive delayed_payment_key by key holder
67 pub extern "C" fn DelayedPaymentOutputDescriptor_set_per_commitment_point(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: crate::c_types::PublicKey) {
68 unsafe { &mut *this_ptr.inner }.per_commitment_point = val.into_rust();
70 /// The nSequence value which must be set in the spending input to satisfy the OP_CSV in
71 /// the witness_script.
73 pub extern "C" fn DelayedPaymentOutputDescriptor_get_to_self_delay(this_ptr: &DelayedPaymentOutputDescriptor) -> u16 {
74 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.to_self_delay;
77 /// The nSequence value which must be set in the spending input to satisfy the OP_CSV in
78 /// the witness_script.
80 pub extern "C" fn DelayedPaymentOutputDescriptor_set_to_self_delay(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: u16) {
81 unsafe { &mut *this_ptr.inner }.to_self_delay = val;
83 /// The output which is referenced by the given outpoint
85 pub extern "C" fn DelayedPaymentOutputDescriptor_set_output(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: crate::c_types::TxOut) {
86 unsafe { &mut *this_ptr.inner }.output = val.into_rust();
88 /// The revocation point specific to the commitment transaction which was broadcast. Used to
89 /// derive the witnessScript for this output.
91 pub extern "C" fn DelayedPaymentOutputDescriptor_get_revocation_pubkey(this_ptr: &DelayedPaymentOutputDescriptor) -> crate::c_types::PublicKey {
92 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.revocation_pubkey;
93 crate::c_types::PublicKey::from_rust(&(*inner_val))
95 /// The revocation point specific to the commitment transaction which was broadcast. Used to
96 /// derive the witnessScript for this output.
98 pub extern "C" fn DelayedPaymentOutputDescriptor_set_revocation_pubkey(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: crate::c_types::PublicKey) {
99 unsafe { &mut *this_ptr.inner }.revocation_pubkey = val.into_rust();
101 /// Arbitrary identification information returned by a call to
102 /// `Sign::channel_keys_id()`. This may be useful in re-deriving keys used in
103 /// the channel to spend the output.
105 pub extern "C" fn DelayedPaymentOutputDescriptor_get_channel_keys_id(this_ptr: &DelayedPaymentOutputDescriptor) -> *const [u8; 32] {
106 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.channel_keys_id;
109 /// Arbitrary identification information returned by a call to
110 /// `Sign::channel_keys_id()`. This may be useful in re-deriving keys used in
111 /// the channel to spend the output.
113 pub extern "C" fn DelayedPaymentOutputDescriptor_set_channel_keys_id(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: crate::c_types::ThirtyTwoBytes) {
114 unsafe { &mut *this_ptr.inner }.channel_keys_id = val.data;
116 /// The value of the channel which this output originated from, possibly indirectly.
118 pub extern "C" fn DelayedPaymentOutputDescriptor_get_channel_value_satoshis(this_ptr: &DelayedPaymentOutputDescriptor) -> u64 {
119 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.channel_value_satoshis;
122 /// The value of the channel which this output originated from, possibly indirectly.
124 pub extern "C" fn DelayedPaymentOutputDescriptor_set_channel_value_satoshis(this_ptr: &mut DelayedPaymentOutputDescriptor, mut val: u64) {
125 unsafe { &mut *this_ptr.inner }.channel_value_satoshis = val;
129 pub extern "C" fn DelayedPaymentOutputDescriptor_new(mut outpoint_arg: crate::chain::transaction::OutPoint, mut per_commitment_point_arg: crate::c_types::PublicKey, mut to_self_delay_arg: u16, mut output_arg: crate::c_types::TxOut, mut revocation_pubkey_arg: crate::c_types::PublicKey, mut channel_keys_id_arg: crate::c_types::ThirtyTwoBytes, mut channel_value_satoshis_arg: u64) -> DelayedPaymentOutputDescriptor {
130 DelayedPaymentOutputDescriptor { inner: Box::into_raw(Box::new(nativeDelayedPaymentOutputDescriptor {
131 outpoint: *unsafe { Box::from_raw(outpoint_arg.take_inner()) },
132 per_commitment_point: per_commitment_point_arg.into_rust(),
133 to_self_delay: to_self_delay_arg,
134 output: output_arg.into_rust(),
135 revocation_pubkey: revocation_pubkey_arg.into_rust(),
136 channel_keys_id: channel_keys_id_arg.data,
137 channel_value_satoshis: channel_value_satoshis_arg,
138 })), is_owned: true }
140 impl Clone for DelayedPaymentOutputDescriptor {
141 fn clone(&self) -> Self {
143 inner: if self.inner.is_null() { std::ptr::null_mut() } else {
144 Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) },
150 /// Used only if an object of this type is returned as a trait impl by a method
151 pub(crate) extern "C" fn DelayedPaymentOutputDescriptor_clone_void(this_ptr: *const c_void) -> *mut c_void {
152 Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeDelayedPaymentOutputDescriptor)).clone() })) as *mut c_void
155 pub extern "C" fn DelayedPaymentOutputDescriptor_clone(orig: &DelayedPaymentOutputDescriptor) -> DelayedPaymentOutputDescriptor {
159 use lightning::chain::keysinterface::StaticPaymentOutputDescriptor as nativeStaticPaymentOutputDescriptorImport;
160 type nativeStaticPaymentOutputDescriptor = nativeStaticPaymentOutputDescriptorImport;
162 /// Information about a spendable output to our \"payment key\". See
163 /// SpendableOutputDescriptor::StaticPaymentOutput for more details on how to spend this.
166 pub struct StaticPaymentOutputDescriptor {
167 /// Nearly everywhere, inner must be non-null, however in places where
168 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
169 pub inner: *mut nativeStaticPaymentOutputDescriptor,
173 impl Drop for StaticPaymentOutputDescriptor {
175 if self.is_owned && !self.inner.is_null() {
176 let _ = unsafe { Box::from_raw(self.inner) };
181 pub extern "C" fn StaticPaymentOutputDescriptor_free(this_ptr: StaticPaymentOutputDescriptor) { }
183 /// Used only if an object of this type is returned as a trait impl by a method
184 extern "C" fn StaticPaymentOutputDescriptor_free_void(this_ptr: *mut c_void) {
185 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeStaticPaymentOutputDescriptor); }
188 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
189 impl StaticPaymentOutputDescriptor {
190 pub(crate) fn take_inner(mut self) -> *mut nativeStaticPaymentOutputDescriptor {
191 assert!(self.is_owned);
192 let ret = self.inner;
193 self.inner = std::ptr::null_mut();
197 /// The outpoint which is spendable
199 pub extern "C" fn StaticPaymentOutputDescriptor_get_outpoint(this_ptr: &StaticPaymentOutputDescriptor) -> crate::chain::transaction::OutPoint {
200 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.outpoint;
201 crate::chain::transaction::OutPoint { inner: unsafe { ( (&((*inner_val)) as *const _) as *mut _) }, is_owned: false }
203 /// The outpoint which is spendable
205 pub extern "C" fn StaticPaymentOutputDescriptor_set_outpoint(this_ptr: &mut StaticPaymentOutputDescriptor, mut val: crate::chain::transaction::OutPoint) {
206 unsafe { &mut *this_ptr.inner }.outpoint = *unsafe { Box::from_raw(val.take_inner()) };
208 /// The output which is referenced by the given outpoint
210 pub extern "C" fn StaticPaymentOutputDescriptor_set_output(this_ptr: &mut StaticPaymentOutputDescriptor, mut val: crate::c_types::TxOut) {
211 unsafe { &mut *this_ptr.inner }.output = val.into_rust();
213 /// Arbitrary identification information returned by a call to
214 /// `Sign::channel_keys_id()`. This may be useful in re-deriving keys used in
215 /// the channel to spend the output.
217 pub extern "C" fn StaticPaymentOutputDescriptor_get_channel_keys_id(this_ptr: &StaticPaymentOutputDescriptor) -> *const [u8; 32] {
218 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.channel_keys_id;
221 /// Arbitrary identification information returned by a call to
222 /// `Sign::channel_keys_id()`. This may be useful in re-deriving keys used in
223 /// the channel to spend the output.
225 pub extern "C" fn StaticPaymentOutputDescriptor_set_channel_keys_id(this_ptr: &mut StaticPaymentOutputDescriptor, mut val: crate::c_types::ThirtyTwoBytes) {
226 unsafe { &mut *this_ptr.inner }.channel_keys_id = val.data;
228 /// The value of the channel which this transactions spends.
230 pub extern "C" fn StaticPaymentOutputDescriptor_get_channel_value_satoshis(this_ptr: &StaticPaymentOutputDescriptor) -> u64 {
231 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.channel_value_satoshis;
234 /// The value of the channel which this transactions spends.
236 pub extern "C" fn StaticPaymentOutputDescriptor_set_channel_value_satoshis(this_ptr: &mut StaticPaymentOutputDescriptor, mut val: u64) {
237 unsafe { &mut *this_ptr.inner }.channel_value_satoshis = val;
241 pub extern "C" fn StaticPaymentOutputDescriptor_new(mut outpoint_arg: crate::chain::transaction::OutPoint, mut output_arg: crate::c_types::TxOut, mut channel_keys_id_arg: crate::c_types::ThirtyTwoBytes, mut channel_value_satoshis_arg: u64) -> StaticPaymentOutputDescriptor {
242 StaticPaymentOutputDescriptor { inner: Box::into_raw(Box::new(nativeStaticPaymentOutputDescriptor {
243 outpoint: *unsafe { Box::from_raw(outpoint_arg.take_inner()) },
244 output: output_arg.into_rust(),
245 channel_keys_id: channel_keys_id_arg.data,
246 channel_value_satoshis: channel_value_satoshis_arg,
247 })), is_owned: true }
249 impl Clone for StaticPaymentOutputDescriptor {
250 fn clone(&self) -> Self {
252 inner: if self.inner.is_null() { std::ptr::null_mut() } else {
253 Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) },
259 /// Used only if an object of this type is returned as a trait impl by a method
260 pub(crate) extern "C" fn StaticPaymentOutputDescriptor_clone_void(this_ptr: *const c_void) -> *mut c_void {
261 Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeStaticPaymentOutputDescriptor)).clone() })) as *mut c_void
264 pub extern "C" fn StaticPaymentOutputDescriptor_clone(orig: &StaticPaymentOutputDescriptor) -> StaticPaymentOutputDescriptor {
267 /// When on-chain outputs are created by rust-lightning (which our counterparty is not able to
268 /// claim at any point in the future) an event is generated which you must track and be able to
269 /// spend on-chain. The information needed to do this is provided in this enum, including the
270 /// outpoint describing which txid and output index is available, the full output which exists at
271 /// that txid/index, and any keys or other information required to sign.
275 pub enum SpendableOutputDescriptor {
276 /// An output to a script which was provided via KeysInterface directly, either from
277 /// `get_destination_script()` or `get_shutdown_pubkey()`, thus you should already know how to
278 /// spend it. No secret keys are provided as rust-lightning was never given any key.
279 /// These may include outputs from a transaction punishing our counterparty or claiming an HTLC
280 /// on-chain using the payment preimage or after it has timed out.
282 outpoint: crate::chain::transaction::OutPoint,
283 output: crate::c_types::TxOut,
285 /// An output to a P2WSH script which can be spent with a single signature after a CSV delay.
287 /// The witness in the spending input should be:
288 /// <BIP 143 signature> <empty vector> (MINIMALIF standard rule) <provided witnessScript>
290 /// Note that the nSequence field in the spending input must be set to to_self_delay
291 /// (which means the transaction is not broadcastable until at least to_self_delay
292 /// blocks after the outpoint confirms).
294 /// These are generally the result of a \"revocable\" output to us, spendable only by us unless
295 /// it is an output from an old state which we broadcast (which should never happen).
297 /// To derive the delayed_payment key which is used to sign for this input, you must pass the
298 /// holder delayed_payment_base_key (ie the private key which corresponds to the pubkey in
299 /// Sign::pubkeys().delayed_payment_basepoint) and the provided per_commitment_point to
300 /// chan_utils::derive_private_key. The public key can be generated without the secret key
301 /// using chan_utils::derive_public_key and only the delayed_payment_basepoint which appears in
304 /// To derive the revocation_pubkey provided here (which is used in the witness
305 /// script generation), you must pass the counterparty revocation_basepoint (which appears in the
306 /// call to Sign::ready_channel) and the provided per_commitment point
307 /// to chan_utils::derive_public_revocation_key.
309 /// The witness script which is hashed and included in the output script_pubkey may be
310 /// regenerated by passing the revocation_pubkey (derived as above), our delayed_payment pubkey
311 /// (derived as above), and the to_self_delay contained here to
312 /// chan_utils::get_revokeable_redeemscript.
313 DelayedPaymentOutput(crate::chain::keysinterface::DelayedPaymentOutputDescriptor),
314 /// An output to a P2WPKH, spendable exclusively by our payment key (ie the private key which
315 /// corresponds to the public key in Sign::pubkeys().payment_point).
316 /// The witness in the spending input, is, thus, simply:
317 /// <BIP 143 signature> <payment key>
319 /// These are generally the result of our counterparty having broadcast the current state,
320 /// allowing us to claim the non-HTLC-encumbered outputs immediately.
321 StaticPaymentOutput(crate::chain::keysinterface::StaticPaymentOutputDescriptor),
323 use lightning::chain::keysinterface::SpendableOutputDescriptor as nativeSpendableOutputDescriptor;
324 impl SpendableOutputDescriptor {
326 pub(crate) fn to_native(&self) -> nativeSpendableOutputDescriptor {
328 SpendableOutputDescriptor::StaticOutput {ref outpoint, ref output, } => {
329 let mut outpoint_nonref = (*outpoint).clone();
330 let mut output_nonref = (*output).clone();
331 nativeSpendableOutputDescriptor::StaticOutput {
332 outpoint: *unsafe { Box::from_raw(outpoint_nonref.take_inner()) },
333 output: output_nonref.into_rust(),
336 SpendableOutputDescriptor::DelayedPaymentOutput (ref a, ) => {
337 let mut a_nonref = (*a).clone();
338 nativeSpendableOutputDescriptor::DelayedPaymentOutput (
339 *unsafe { Box::from_raw(a_nonref.take_inner()) },
342 SpendableOutputDescriptor::StaticPaymentOutput (ref a, ) => {
343 let mut a_nonref = (*a).clone();
344 nativeSpendableOutputDescriptor::StaticPaymentOutput (
345 *unsafe { Box::from_raw(a_nonref.take_inner()) },
351 pub(crate) fn into_native(self) -> nativeSpendableOutputDescriptor {
353 SpendableOutputDescriptor::StaticOutput {mut outpoint, mut output, } => {
354 nativeSpendableOutputDescriptor::StaticOutput {
355 outpoint: *unsafe { Box::from_raw(outpoint.take_inner()) },
356 output: output.into_rust(),
359 SpendableOutputDescriptor::DelayedPaymentOutput (mut a, ) => {
360 nativeSpendableOutputDescriptor::DelayedPaymentOutput (
361 *unsafe { Box::from_raw(a.take_inner()) },
364 SpendableOutputDescriptor::StaticPaymentOutput (mut a, ) => {
365 nativeSpendableOutputDescriptor::StaticPaymentOutput (
366 *unsafe { Box::from_raw(a.take_inner()) },
372 pub(crate) fn from_native(native: &nativeSpendableOutputDescriptor) -> Self {
374 nativeSpendableOutputDescriptor::StaticOutput {ref outpoint, ref output, } => {
375 let mut outpoint_nonref = (*outpoint).clone();
376 let mut output_nonref = (*output).clone();
377 SpendableOutputDescriptor::StaticOutput {
378 outpoint: crate::chain::transaction::OutPoint { inner: Box::into_raw(Box::new(outpoint_nonref)), is_owned: true },
379 output: crate::c_types::TxOut::from_rust(output_nonref),
382 nativeSpendableOutputDescriptor::DelayedPaymentOutput (ref a, ) => {
383 let mut a_nonref = (*a).clone();
384 SpendableOutputDescriptor::DelayedPaymentOutput (
385 crate::chain::keysinterface::DelayedPaymentOutputDescriptor { inner: Box::into_raw(Box::new(a_nonref)), is_owned: true },
388 nativeSpendableOutputDescriptor::StaticPaymentOutput (ref a, ) => {
389 let mut a_nonref = (*a).clone();
390 SpendableOutputDescriptor::StaticPaymentOutput (
391 crate::chain::keysinterface::StaticPaymentOutputDescriptor { inner: Box::into_raw(Box::new(a_nonref)), is_owned: true },
397 pub(crate) fn native_into(native: nativeSpendableOutputDescriptor) -> Self {
399 nativeSpendableOutputDescriptor::StaticOutput {mut outpoint, mut output, } => {
400 SpendableOutputDescriptor::StaticOutput {
401 outpoint: crate::chain::transaction::OutPoint { inner: Box::into_raw(Box::new(outpoint)), is_owned: true },
402 output: crate::c_types::TxOut::from_rust(output),
405 nativeSpendableOutputDescriptor::DelayedPaymentOutput (mut a, ) => {
406 SpendableOutputDescriptor::DelayedPaymentOutput (
407 crate::chain::keysinterface::DelayedPaymentOutputDescriptor { inner: Box::into_raw(Box::new(a)), is_owned: true },
410 nativeSpendableOutputDescriptor::StaticPaymentOutput (mut a, ) => {
411 SpendableOutputDescriptor::StaticPaymentOutput (
412 crate::chain::keysinterface::StaticPaymentOutputDescriptor { inner: Box::into_raw(Box::new(a)), is_owned: true },
419 pub extern "C" fn SpendableOutputDescriptor_free(this_ptr: SpendableOutputDescriptor) { }
421 pub extern "C" fn SpendableOutputDescriptor_clone(orig: &SpendableOutputDescriptor) -> SpendableOutputDescriptor {
425 pub extern "C" fn SpendableOutputDescriptor_write(obj: &SpendableOutputDescriptor) -> crate::c_types::derived::CVec_u8Z {
426 crate::c_types::serialize_obj(&unsafe { &*obj }.to_native())
429 pub extern "C" fn SpendableOutputDescriptor_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_SpendableOutputDescriptorDecodeErrorZ {
430 let res = crate::c_types::deserialize_obj(ser);
431 let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::chain::keysinterface::SpendableOutputDescriptor::native_into(o) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() };
434 /// A trait to sign lightning channel transactions as described in BOLT 3.
436 /// Signing services could be implemented on a hardware wallet. In this case,
437 /// the current Sign would be a front-end on top of a communication
438 /// channel connected to your secure device and lightning key material wouldn't
439 /// reside on a hot server. Nevertheless, a this deployment would still need
440 /// to trust the ChannelManager to avoid loss of funds as this latest component
441 /// could ask to sign commitment transaction with HTLCs paying to attacker pubkeys.
443 /// A more secure iteration would be to use hashlock (or payment points) to pair
444 /// invoice/incoming HTLCs with outgoing HTLCs to implement a no-trust-ChannelManager
445 /// at the price of more state and computation on the hardware wallet side. In the future,
446 /// we are looking forward to design such interface.
448 /// In any case, ChannelMonitor or fallback watchtowers are always going to be trusted
449 /// to act, as liveness and breach reply correctness are always going to be hard requirements
450 /// of LN security model, orthogonal of key management issues.
453 pub this_arg: *mut c_void,
454 /// Gets the per-commitment point for a specific commitment number
456 /// Note that the commitment number starts at (1 << 48) - 1 and counts backwards.
458 pub get_per_commitment_point: extern "C" fn (this_arg: *const c_void, idx: u64) -> crate::c_types::PublicKey,
459 /// Gets the commitment secret for a specific commitment number as part of the revocation process
461 /// An external signer implementation should error here if the commitment was already signed
462 /// and should refuse to sign it in the future.
464 /// May be called more than once for the same index.
466 /// Note that the commitment number starts at (1 << 48) - 1 and counts backwards.
468 pub release_commitment_secret: extern "C" fn (this_arg: *const c_void, idx: u64) -> crate::c_types::ThirtyTwoBytes,
469 /// Gets the holder's channel public keys and basepoints
470 pub pubkeys: crate::ln::chan_utils::ChannelPublicKeys,
471 /// Fill in the pubkeys field as a reference to it will be given to Rust after this returns
472 /// Note that this takes a pointer to this object, not the this_ptr like other methods do
473 /// This function pointer may be NULL if pubkeys is filled in when this object is created and never needs updating.
474 pub set_pubkeys: Option<extern "C" fn(&Sign)>,
475 /// Gets an arbitrary identifier describing the set of keys which are provided back to you in
476 /// some SpendableOutputDescriptor types. This should be sufficient to identify this
477 /// Sign object uniquely and lookup or re-derive its keys.
479 pub channel_keys_id: extern "C" fn (this_arg: *const c_void) -> crate::c_types::ThirtyTwoBytes,
480 /// Create a signature for a counterparty's commitment transaction and associated HTLC transactions.
482 /// Note that if signing fails or is rejected, the channel will be force-closed.
484 pub sign_counterparty_commitment: extern "C" fn (this_arg: *const c_void, commitment_tx: &crate::ln::chan_utils::CommitmentTransaction) -> crate::c_types::derived::CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ,
485 /// Create a signatures for a holder's commitment transaction and its claiming HTLC transactions.
486 /// This will only ever be called with a non-revoked commitment_tx. This will be called with the
487 /// latest commitment_tx when we initiate a force-close.
488 /// This will be called with the previous latest, just to get claiming HTLC signatures, if we are
489 /// reacting to a ChannelMonitor replica that decided to broadcast before it had been updated to
491 /// This may be called multiple times for the same transaction.
493 /// An external signer implementation should check that the commitment has not been revoked.
495 /// May return Err if key derivation fails. Callers, such as ChannelMonitor, will panic in such a case.
497 pub sign_holder_commitment_and_htlcs: extern "C" fn (this_arg: *const c_void, commitment_tx: &crate::ln::chan_utils::HolderCommitmentTransaction) -> crate::c_types::derived::CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ,
498 /// Create a signature for the given input in a transaction spending an HTLC or commitment
499 /// transaction output when our counterparty broadcasts an old state.
501 /// A justice transaction may claim multiples outputs at the same time if timelocks are
502 /// similar, but only a signature for the input at index `input` should be signed for here.
503 /// It may be called multiples time for same output(s) if a fee-bump is needed with regards
504 /// to an upcoming timelock expiration.
506 /// Amount is value of the output spent by this input, committed to in the BIP 143 signature.
508 /// per_commitment_key is revocation secret which was provided by our counterparty when they
509 /// revoked the state which they eventually broadcast. It's not a _holder_ secret key and does
510 /// not allow the spending of any funds by itself (you need our holder revocation_secret to do
513 /// htlc holds HTLC elements (hash, timelock) if the output being spent is a HTLC output, thus
514 /// changing the format of the witness script (which is committed to in the BIP 143
517 pub sign_justice_transaction: extern "C" fn (this_arg: *const c_void, justice_tx: crate::c_types::Transaction, input: usize, amount: u64, per_commitment_key: *const [u8; 32], htlc: &crate::ln::chan_utils::HTLCOutputInCommitment) -> crate::c_types::derived::CResult_SignatureNoneZ,
518 /// Create a signature for a claiming transaction for a HTLC output on a counterparty's commitment
519 /// transaction, either offered or received.
521 /// Such a transaction may claim multiples offered outputs at same time if we know the
522 /// preimage for each when we create it, but only the input at index `input` should be
523 /// signed for here. It may be called multiple times for same output(s) if a fee-bump is
524 /// needed with regards to an upcoming timelock expiration.
526 /// Witness_script is either a offered or received script as defined in BOLT3 for HTLC
529 /// Amount is value of the output spent by this input, committed to in the BIP 143 signature.
531 /// Per_commitment_point is the dynamic point corresponding to the channel state
532 /// detected onchain. It has been generated by our counterparty and is used to derive
533 /// channel state keys, which are then included in the witness script and committed to in the
534 /// BIP 143 signature.
536 pub sign_counterparty_htlc_transaction: extern "C" fn (this_arg: *const c_void, htlc_tx: crate::c_types::Transaction, input: usize, amount: u64, per_commitment_point: crate::c_types::PublicKey, htlc: &crate::ln::chan_utils::HTLCOutputInCommitment) -> crate::c_types::derived::CResult_SignatureNoneZ,
537 /// Create a signature for a (proposed) closing transaction.
539 /// Note that, due to rounding, there may be one \"missing\" satoshi, and either party may have
540 /// chosen to forgo their output as dust.
542 pub sign_closing_transaction: extern "C" fn (this_arg: *const c_void, closing_tx: crate::c_types::Transaction) -> crate::c_types::derived::CResult_SignatureNoneZ,
543 /// Signs a channel announcement message with our funding key, proving it comes from one
544 /// of the channel participants.
546 /// Note that if this fails or is rejected, the channel will not be publicly announced and
547 /// our counterparty may (though likely will not) close the channel on us for violating the
550 pub sign_channel_announcement: extern "C" fn (this_arg: *const c_void, msg: &crate::ln::msgs::UnsignedChannelAnnouncement) -> crate::c_types::derived::CResult_SignatureNoneZ,
551 /// Set the counterparty static channel data, including basepoints,
552 /// counterparty_selected/holder_selected_contest_delay and funding outpoint.
553 /// This is done as soon as the funding outpoint is known. Since these are static channel data,
554 /// they MUST NOT be allowed to change to different values once set.
556 /// channel_parameters.is_populated() MUST be true.
558 /// We bind holder_selected_contest_delay late here for API convenience.
560 /// Will be called before any signatures are applied.
561 pub ready_channel: extern "C" fn (this_arg: *mut c_void, channel_parameters: &crate::ln::chan_utils::ChannelTransactionParameters),
562 pub clone: Option<extern "C" fn (this_arg: *const c_void) -> *mut c_void>,
563 pub write: extern "C" fn (this_arg: *const c_void) -> crate::c_types::derived::CVec_u8Z,
564 pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
566 unsafe impl Send for Sign {}
568 pub extern "C" fn Sign_clone(orig: &Sign) -> Sign {
570 this_arg: if let Some(f) = orig.clone { (f)(orig.this_arg) } else { orig.this_arg },
571 get_per_commitment_point: orig.get_per_commitment_point.clone(),
572 release_commitment_secret: orig.release_commitment_secret.clone(),
573 pubkeys: orig.pubkeys.clone(),
574 set_pubkeys: orig.set_pubkeys.clone(),
575 channel_keys_id: orig.channel_keys_id.clone(),
576 sign_counterparty_commitment: orig.sign_counterparty_commitment.clone(),
577 sign_holder_commitment_and_htlcs: orig.sign_holder_commitment_and_htlcs.clone(),
578 sign_justice_transaction: orig.sign_justice_transaction.clone(),
579 sign_counterparty_htlc_transaction: orig.sign_counterparty_htlc_transaction.clone(),
580 sign_closing_transaction: orig.sign_closing_transaction.clone(),
581 sign_channel_announcement: orig.sign_channel_announcement.clone(),
582 ready_channel: orig.ready_channel.clone(),
583 clone: orig.clone.clone(),
584 write: orig.write.clone(),
585 free: orig.free.clone(),
588 impl Clone for Sign {
589 fn clone(&self) -> Self {
593 impl lightning::util::ser::Writeable for Sign {
594 fn write<W: lightning::util::ser::Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
595 let vec = (self.write)(self.this_arg);
596 w.write_all(vec.as_slice())
600 use lightning::chain::keysinterface::Sign as rustSign;
601 impl rustSign for Sign {
602 fn get_per_commitment_point<T:bitcoin::secp256k1::Signing + bitcoin::secp256k1::Verification>(&self, idx: u64, _secp_ctx: &bitcoin::secp256k1::Secp256k1<T>) -> bitcoin::secp256k1::key::PublicKey {
603 let mut ret = (self.get_per_commitment_point)(self.this_arg, idx);
606 fn release_commitment_secret(&self, idx: u64) -> [u8; 32] {
607 let mut ret = (self.release_commitment_secret)(self.this_arg, idx);
610 fn pubkeys(&self) -> &lightning::ln::chan_utils::ChannelPublicKeys {
611 if let Some(f) = self.set_pubkeys {
614 unsafe { &*self.pubkeys.inner }
616 fn channel_keys_id(&self) -> [u8; 32] {
617 let mut ret = (self.channel_keys_id)(self.this_arg);
620 fn sign_counterparty_commitment<T:bitcoin::secp256k1::Signing + bitcoin::secp256k1::Verification>(&self, commitment_tx: &lightning::ln::chan_utils::CommitmentTransaction, _secp_ctx: &bitcoin::secp256k1::Secp256k1<T>) -> Result<(bitcoin::secp256k1::Signature, Vec<bitcoin::secp256k1::Signature>), ()> {
621 let mut ret = (self.sign_counterparty_commitment)(self.this_arg, &crate::ln::chan_utils::CommitmentTransaction { inner: unsafe { (commitment_tx as *const _) as *mut _ }, is_owned: false });
622 let mut local_ret = match ret.result_ok { true => Ok( { let (mut orig_ret_0_0, mut orig_ret_0_1) = (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).to_rust(); let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.into_rust().drain(..) { local_orig_ret_0_1.push( { item.into_rust() }); }; let mut local_ret_0 = (orig_ret_0_0.into_rust(), local_orig_ret_0_1); local_ret_0 }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })};
625 fn sign_holder_commitment_and_htlcs<T:bitcoin::secp256k1::Signing + bitcoin::secp256k1::Verification>(&self, commitment_tx: &lightning::ln::chan_utils::HolderCommitmentTransaction, _secp_ctx: &bitcoin::secp256k1::Secp256k1<T>) -> Result<(bitcoin::secp256k1::Signature, Vec<bitcoin::secp256k1::Signature>), ()> {
626 let mut ret = (self.sign_holder_commitment_and_htlcs)(self.this_arg, &crate::ln::chan_utils::HolderCommitmentTransaction { inner: unsafe { (commitment_tx as *const _) as *mut _ }, is_owned: false });
627 let mut local_ret = match ret.result_ok { true => Ok( { let (mut orig_ret_0_0, mut orig_ret_0_1) = (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).to_rust(); let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.into_rust().drain(..) { local_orig_ret_0_1.push( { item.into_rust() }); }; let mut local_ret_0 = (orig_ret_0_0.into_rust(), local_orig_ret_0_1); local_ret_0 }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })};
630 fn sign_justice_transaction<T:bitcoin::secp256k1::Signing + bitcoin::secp256k1::Verification>(&self, justice_tx: &bitcoin::blockdata::transaction::Transaction, input: usize, amount: u64, per_commitment_key: &bitcoin::secp256k1::key::SecretKey, htlc: &Option<lightning::ln::chan_utils::HTLCOutputInCommitment>, _secp_ctx: &bitcoin::secp256k1::Secp256k1<T>) -> Result<bitcoin::secp256k1::Signature, ()> {
631 let mut local_justice_tx = ::bitcoin::consensus::encode::serialize(justice_tx);
632 let mut local_htlc = &crate::ln::chan_utils::HTLCOutputInCommitment { inner: unsafe { (if htlc.is_none() { std::ptr::null() } else { { (htlc.as_ref().unwrap()) } } as *const _) as *mut _ }, is_owned: false };
633 let mut ret = (self.sign_justice_transaction)(self.this_arg, crate::c_types::Transaction::from_vec(local_justice_tx), input, amount, per_commitment_key.as_ref(), local_htlc);
634 let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })};
637 fn sign_counterparty_htlc_transaction<T:bitcoin::secp256k1::Signing + bitcoin::secp256k1::Verification>(&self, htlc_tx: &bitcoin::blockdata::transaction::Transaction, input: usize, amount: u64, per_commitment_point: &bitcoin::secp256k1::key::PublicKey, htlc: &lightning::ln::chan_utils::HTLCOutputInCommitment, _secp_ctx: &bitcoin::secp256k1::Secp256k1<T>) -> Result<bitcoin::secp256k1::Signature, ()> {
638 let mut local_htlc_tx = ::bitcoin::consensus::encode::serialize(htlc_tx);
639 let mut ret = (self.sign_counterparty_htlc_transaction)(self.this_arg, crate::c_types::Transaction::from_vec(local_htlc_tx), input, amount, crate::c_types::PublicKey::from_rust(&per_commitment_point), &crate::ln::chan_utils::HTLCOutputInCommitment { inner: unsafe { (htlc as *const _) as *mut _ }, is_owned: false });
640 let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })};
643 fn sign_closing_transaction<T:bitcoin::secp256k1::Signing>(&self, closing_tx: &bitcoin::blockdata::transaction::Transaction, _secp_ctx: &bitcoin::secp256k1::Secp256k1<T>) -> Result<bitcoin::secp256k1::Signature, ()> {
644 let mut local_closing_tx = ::bitcoin::consensus::encode::serialize(closing_tx);
645 let mut ret = (self.sign_closing_transaction)(self.this_arg, crate::c_types::Transaction::from_vec(local_closing_tx));
646 let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })};
649 fn sign_channel_announcement<T:bitcoin::secp256k1::Signing>(&self, msg: &lightning::ln::msgs::UnsignedChannelAnnouncement, _secp_ctx: &bitcoin::secp256k1::Secp256k1<T>) -> Result<bitcoin::secp256k1::Signature, ()> {
650 let mut ret = (self.sign_channel_announcement)(self.this_arg, &crate::ln::msgs::UnsignedChannelAnnouncement { inner: unsafe { (msg as *const _) as *mut _ }, is_owned: false });
651 let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }).into_rust() }), false => Err( { () /*(*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) })*/ })};
654 fn ready_channel(&mut self, channel_parameters: &lightning::ln::chan_utils::ChannelTransactionParameters) {
655 (self.ready_channel)(self.this_arg, &crate::ln::chan_utils::ChannelTransactionParameters { inner: unsafe { (channel_parameters as *const _) as *mut _ }, is_owned: false })
659 // We're essentially a pointer already, or at least a set of pointers, so allow us to be used
660 // directly as a Deref trait in higher-level structs:
661 impl std::ops::Deref for Sign {
663 fn deref(&self) -> &Self {
667 /// Calls the free function if one is set
669 pub extern "C" fn Sign_free(this_ptr: Sign) { }
672 if let Some(f) = self.free {
677 /// A trait to describe an object which can get user secrets and key material.
679 pub struct KeysInterface {
680 pub this_arg: *mut c_void,
681 /// Get node secret key (aka node_id or network_key).
683 /// This method must return the same value each time it is called.
685 pub get_node_secret: extern "C" fn (this_arg: *const c_void) -> crate::c_types::SecretKey,
686 /// Get a script pubkey which we send funds to when claiming on-chain contestable outputs.
688 /// This method should return a different value each time it is called, to avoid linking
689 /// on-chain funds across channels as controlled to the same user.
691 pub get_destination_script: extern "C" fn (this_arg: *const c_void) -> crate::c_types::derived::CVec_u8Z,
692 /// Get a public key which we will send funds to (in the form of a P2WPKH output) when closing
695 /// This method should return a different value each time it is called, to avoid linking
696 /// on-chain funds across channels as controlled to the same user.
698 pub get_shutdown_pubkey: extern "C" fn (this_arg: *const c_void) -> crate::c_types::PublicKey,
699 /// Get a new set of Sign for per-channel secrets. These MUST be unique even if you
700 /// restarted with some stale data!
702 /// This method must return a different value each time it is called.
704 pub get_channel_signer: extern "C" fn (this_arg: *const c_void, inbound: bool, channel_value_satoshis: u64) -> crate::chain::keysinterface::Sign,
705 /// Gets a unique, cryptographically-secure, random 32 byte value. This is used for encrypting
706 /// onion packets and for temporary channel IDs. There is no requirement that these be
707 /// persisted anywhere, though they must be unique across restarts.
709 /// This method must return a different value each time it is called.
711 pub get_secure_random_bytes: extern "C" fn (this_arg: *const c_void) -> crate::c_types::ThirtyTwoBytes,
712 /// Reads a `Signer` for this `KeysInterface` from the given input stream.
713 /// This is only called during deserialization of other objects which contain
714 /// `Sign`-implementing objects (ie `ChannelMonitor`s and `ChannelManager`s).
715 /// The bytes are exactly those which `<Self::Signer as Writeable>::write()` writes, and
716 /// contain no versioning scheme. You may wish to include your own version prefix and ensure
717 /// you've read all of the provided bytes to ensure no corruption occurred.
719 pub read_chan_signer: extern "C" fn (this_arg: *const c_void, reader: crate::c_types::u8slice) -> crate::c_types::derived::CResult_SignDecodeErrorZ,
720 pub free: Option<extern "C" fn(this_arg: *mut c_void)>,
722 unsafe impl Send for KeysInterface {}
723 unsafe impl Sync for KeysInterface {}
725 use lightning::chain::keysinterface::KeysInterface as rustKeysInterface;
726 impl rustKeysInterface for KeysInterface {
727 type Signer = crate::chain::keysinterface::Sign;
728 fn get_node_secret(&self) -> bitcoin::secp256k1::key::SecretKey {
729 let mut ret = (self.get_node_secret)(self.this_arg);
732 fn get_destination_script(&self) -> bitcoin::blockdata::script::Script {
733 let mut ret = (self.get_destination_script)(self.this_arg);
734 ::bitcoin::blockdata::script::Script::from(ret.into_rust())
736 fn get_shutdown_pubkey(&self) -> bitcoin::secp256k1::key::PublicKey {
737 let mut ret = (self.get_shutdown_pubkey)(self.this_arg);
740 fn get_channel_signer(&self, inbound: bool, channel_value_satoshis: u64) -> crate::chain::keysinterface::Sign {
741 let mut ret = (self.get_channel_signer)(self.this_arg, inbound, channel_value_satoshis);
744 fn get_secure_random_bytes(&self) -> [u8; 32] {
745 let mut ret = (self.get_secure_random_bytes)(self.this_arg);
748 fn read_chan_signer(&self, reader: &[u8]) -> Result<crate::chain::keysinterface::Sign, lightning::ln::msgs::DecodeError> {
749 let mut local_reader = crate::c_types::u8slice::from_slice(reader);
750 let mut ret = (self.read_chan_signer)(self.this_arg, local_reader);
751 let mut local_ret = match ret.result_ok { true => Ok( { (*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.result)) }) }), false => Err( { *unsafe { Box::from_raw((*unsafe { Box::from_raw(<*mut _>::take_ptr(&mut ret.contents.err)) }).take_inner()) } })};
756 // We're essentially a pointer already, or at least a set of pointers, so allow us to be used
757 // directly as a Deref trait in higher-level structs:
758 impl std::ops::Deref for KeysInterface {
760 fn deref(&self) -> &Self {
764 /// Calls the free function if one is set
766 pub extern "C" fn KeysInterface_free(this_ptr: KeysInterface) { }
767 impl Drop for KeysInterface {
769 if let Some(f) = self.free {
775 use lightning::chain::keysinterface::InMemorySigner as nativeInMemorySignerImport;
776 type nativeInMemorySigner = nativeInMemorySignerImport;
778 /// A simple implementation of Sign that just keeps the private keys in memory.
780 /// This implementation performs no policy checks and is insufficient by itself as
781 /// a secure external signer.
784 pub struct InMemorySigner {
785 /// Nearly everywhere, inner must be non-null, however in places where
786 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
787 pub inner: *mut nativeInMemorySigner,
791 impl Drop for InMemorySigner {
793 if self.is_owned && !self.inner.is_null() {
794 let _ = unsafe { Box::from_raw(self.inner) };
799 pub extern "C" fn InMemorySigner_free(this_ptr: InMemorySigner) { }
801 /// Used only if an object of this type is returned as a trait impl by a method
802 extern "C" fn InMemorySigner_free_void(this_ptr: *mut c_void) {
803 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeInMemorySigner); }
806 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
807 impl InMemorySigner {
808 pub(crate) fn take_inner(mut self) -> *mut nativeInMemorySigner {
809 assert!(self.is_owned);
810 let ret = self.inner;
811 self.inner = std::ptr::null_mut();
815 /// Private key of anchor tx
817 pub extern "C" fn InMemorySigner_get_funding_key(this_ptr: &InMemorySigner) -> *const [u8; 32] {
818 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.funding_key;
819 (*inner_val).as_ref()
821 /// Private key of anchor tx
823 pub extern "C" fn InMemorySigner_set_funding_key(this_ptr: &mut InMemorySigner, mut val: crate::c_types::SecretKey) {
824 unsafe { &mut *this_ptr.inner }.funding_key = val.into_rust();
826 /// Holder secret key for blinded revocation pubkey
828 pub extern "C" fn InMemorySigner_get_revocation_base_key(this_ptr: &InMemorySigner) -> *const [u8; 32] {
829 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.revocation_base_key;
830 (*inner_val).as_ref()
832 /// Holder secret key for blinded revocation pubkey
834 pub extern "C" fn InMemorySigner_set_revocation_base_key(this_ptr: &mut InMemorySigner, mut val: crate::c_types::SecretKey) {
835 unsafe { &mut *this_ptr.inner }.revocation_base_key = val.into_rust();
837 /// Holder secret key used for our balance in counterparty-broadcasted commitment transactions
839 pub extern "C" fn InMemorySigner_get_payment_key(this_ptr: &InMemorySigner) -> *const [u8; 32] {
840 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.payment_key;
841 (*inner_val).as_ref()
843 /// Holder secret key used for our balance in counterparty-broadcasted commitment transactions
845 pub extern "C" fn InMemorySigner_set_payment_key(this_ptr: &mut InMemorySigner, mut val: crate::c_types::SecretKey) {
846 unsafe { &mut *this_ptr.inner }.payment_key = val.into_rust();
848 /// Holder secret key used in HTLC tx
850 pub extern "C" fn InMemorySigner_get_delayed_payment_base_key(this_ptr: &InMemorySigner) -> *const [u8; 32] {
851 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.delayed_payment_base_key;
852 (*inner_val).as_ref()
854 /// Holder secret key used in HTLC tx
856 pub extern "C" fn InMemorySigner_set_delayed_payment_base_key(this_ptr: &mut InMemorySigner, mut val: crate::c_types::SecretKey) {
857 unsafe { &mut *this_ptr.inner }.delayed_payment_base_key = val.into_rust();
859 /// Holder htlc secret key used in commitment tx htlc outputs
861 pub extern "C" fn InMemorySigner_get_htlc_base_key(this_ptr: &InMemorySigner) -> *const [u8; 32] {
862 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.htlc_base_key;
863 (*inner_val).as_ref()
865 /// Holder htlc secret key used in commitment tx htlc outputs
867 pub extern "C" fn InMemorySigner_set_htlc_base_key(this_ptr: &mut InMemorySigner, mut val: crate::c_types::SecretKey) {
868 unsafe { &mut *this_ptr.inner }.htlc_base_key = val.into_rust();
872 pub extern "C" fn InMemorySigner_get_commitment_seed(this_ptr: &InMemorySigner) -> *const [u8; 32] {
873 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.commitment_seed;
878 pub extern "C" fn InMemorySigner_set_commitment_seed(this_ptr: &mut InMemorySigner, mut val: crate::c_types::ThirtyTwoBytes) {
879 unsafe { &mut *this_ptr.inner }.commitment_seed = val.data;
881 impl Clone for InMemorySigner {
882 fn clone(&self) -> Self {
884 inner: if self.inner.is_null() { std::ptr::null_mut() } else {
885 Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) },
891 /// Used only if an object of this type is returned as a trait impl by a method
892 pub(crate) extern "C" fn InMemorySigner_clone_void(this_ptr: *const c_void) -> *mut c_void {
893 Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeInMemorySigner)).clone() })) as *mut c_void
896 pub extern "C" fn InMemorySigner_clone(orig: &InMemorySigner) -> InMemorySigner {
899 /// Create a new InMemorySigner
902 pub extern "C" fn InMemorySigner_new(mut funding_key: crate::c_types::SecretKey, mut revocation_base_key: crate::c_types::SecretKey, mut payment_key: crate::c_types::SecretKey, mut delayed_payment_base_key: crate::c_types::SecretKey, mut htlc_base_key: crate::c_types::SecretKey, mut commitment_seed: crate::c_types::ThirtyTwoBytes, mut channel_value_satoshis: u64, mut channel_keys_id: crate::c_types::ThirtyTwoBytes) -> crate::chain::keysinterface::InMemorySigner {
903 let mut ret = lightning::chain::keysinterface::InMemorySigner::new(secp256k1::SECP256K1, funding_key.into_rust(), revocation_base_key.into_rust(), payment_key.into_rust(), delayed_payment_base_key.into_rust(), htlc_base_key.into_rust(), commitment_seed.data, channel_value_satoshis, channel_keys_id.data);
904 crate::chain::keysinterface::InMemorySigner { inner: Box::into_raw(Box::new(ret)), is_owned: true }
907 /// Counterparty pubkeys.
908 /// Will panic if ready_channel wasn't called.
911 pub extern "C" fn InMemorySigner_counterparty_pubkeys(this_arg: &InMemorySigner) -> crate::ln::chan_utils::ChannelPublicKeys {
912 let mut ret = unsafe { &*this_arg.inner }.counterparty_pubkeys();
913 crate::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false }
916 /// The contest_delay value specified by our counterparty and applied on holder-broadcastable
917 /// transactions, ie the amount of time that we have to wait to recover our funds if we
918 /// broadcast a transaction.
919 /// Will panic if ready_channel wasn't called.
922 pub extern "C" fn InMemorySigner_counterparty_selected_contest_delay(this_arg: &InMemorySigner) -> u16 {
923 let mut ret = unsafe { &*this_arg.inner }.counterparty_selected_contest_delay();
927 /// The contest_delay value specified by us and applied on transactions broadcastable
928 /// by our counterparty, ie the amount of time that they have to wait to recover their funds
929 /// if they broadcast a transaction.
930 /// Will panic if ready_channel wasn't called.
933 pub extern "C" fn InMemorySigner_holder_selected_contest_delay(this_arg: &InMemorySigner) -> u16 {
934 let mut ret = unsafe { &*this_arg.inner }.holder_selected_contest_delay();
938 /// Whether the holder is the initiator
939 /// Will panic if ready_channel wasn't called.
942 pub extern "C" fn InMemorySigner_is_outbound(this_arg: &InMemorySigner) -> bool {
943 let mut ret = unsafe { &*this_arg.inner }.is_outbound();
948 /// Will panic if ready_channel wasn't called.
951 pub extern "C" fn InMemorySigner_funding_outpoint(this_arg: &InMemorySigner) -> crate::chain::transaction::OutPoint {
952 let mut ret = unsafe { &*this_arg.inner }.funding_outpoint();
953 crate::chain::transaction::OutPoint { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false }
956 /// Obtain a ChannelTransactionParameters for this channel, to be used when verifying or
957 /// building transactions.
959 /// Will panic if ready_channel wasn't called.
962 pub extern "C" fn InMemorySigner_get_channel_parameters(this_arg: &InMemorySigner) -> crate::ln::chan_utils::ChannelTransactionParameters {
963 let mut ret = unsafe { &*this_arg.inner }.get_channel_parameters();
964 crate::ln::chan_utils::ChannelTransactionParameters { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false }
967 /// Sign the single input of spend_tx at index `input_idx` which spends the output
968 /// described by descriptor, returning the witness stack for the input.
970 /// Returns an Err if the input at input_idx does not exist, has a non-empty script_sig,
971 /// or is not spending the outpoint described by `descriptor.outpoint`.
974 pub extern "C" fn InMemorySigner_sign_counterparty_payment_input(this_arg: &InMemorySigner, mut spend_tx: crate::c_types::Transaction, mut input_idx: usize, descriptor: &crate::chain::keysinterface::StaticPaymentOutputDescriptor) -> crate::c_types::derived::CResult_CVec_CVec_u8ZZNoneZ {
975 let mut ret = unsafe { &*this_arg.inner }.sign_counterparty_payment_input(&spend_tx.into_bitcoin(), input_idx, unsafe { &*descriptor.inner }, secp256k1::SECP256K1);
976 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { let mut local_ret_0 = Vec::new(); for mut item in o.drain(..) { local_ret_0.push( { let mut local_ret_0_0 = Vec::new(); for mut item in item.drain(..) { local_ret_0_0.push( { item }); }; local_ret_0_0.into() }); }; local_ret_0.into() }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() };
980 /// Sign the single input of spend_tx at index `input_idx` which spends the output
981 /// described by descriptor, returning the witness stack for the input.
983 /// Returns an Err if the input at input_idx does not exist, has a non-empty script_sig,
984 /// is not spending the outpoint described by `descriptor.outpoint`, or does not have a
985 /// sequence set to `descriptor.to_self_delay`.
988 pub extern "C" fn InMemorySigner_sign_dynamic_p2wsh_input(this_arg: &InMemorySigner, mut spend_tx: crate::c_types::Transaction, mut input_idx: usize, descriptor: &crate::chain::keysinterface::DelayedPaymentOutputDescriptor) -> crate::c_types::derived::CResult_CVec_CVec_u8ZZNoneZ {
989 let mut ret = unsafe { &*this_arg.inner }.sign_dynamic_p2wsh_input(&spend_tx.into_bitcoin(), input_idx, unsafe { &*descriptor.inner }, secp256k1::SECP256K1);
990 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { let mut local_ret_0 = Vec::new(); for mut item in o.drain(..) { local_ret_0.push( { let mut local_ret_0_0 = Vec::new(); for mut item in item.drain(..) { local_ret_0_0.push( { item }); }; local_ret_0_0.into() }); }; local_ret_0.into() }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() };
994 impl From<nativeInMemorySigner> for crate::chain::keysinterface::Sign {
995 fn from(obj: nativeInMemorySigner) -> Self {
996 let mut rust_obj = InMemorySigner { inner: Box::into_raw(Box::new(obj)), is_owned: true };
997 let mut ret = InMemorySigner_as_Sign(&rust_obj);
998 // We want to free rust_obj when ret gets drop()'d, not rust_obj, so wipe rust_obj's pointer and set ret's free() fn
999 rust_obj.inner = std::ptr::null_mut();
1000 ret.free = Some(InMemorySigner_free_void);
1005 pub extern "C" fn InMemorySigner_as_Sign(this_arg: &InMemorySigner) -> crate::chain::keysinterface::Sign {
1006 crate::chain::keysinterface::Sign {
1007 this_arg: unsafe { (*this_arg).inner as *mut c_void },
1009 get_per_commitment_point: InMemorySigner_Sign_get_per_commitment_point,
1010 release_commitment_secret: InMemorySigner_Sign_release_commitment_secret,
1012 pubkeys: crate::ln::chan_utils::ChannelPublicKeys { inner: std::ptr::null_mut(), is_owned: true },
1013 set_pubkeys: Some(InMemorySigner_Sign_set_pubkeys),
1014 channel_keys_id: InMemorySigner_Sign_channel_keys_id,
1015 sign_counterparty_commitment: InMemorySigner_Sign_sign_counterparty_commitment,
1016 sign_holder_commitment_and_htlcs: InMemorySigner_Sign_sign_holder_commitment_and_htlcs,
1017 sign_justice_transaction: InMemorySigner_Sign_sign_justice_transaction,
1018 sign_counterparty_htlc_transaction: InMemorySigner_Sign_sign_counterparty_htlc_transaction,
1019 sign_closing_transaction: InMemorySigner_Sign_sign_closing_transaction,
1020 sign_channel_announcement: InMemorySigner_Sign_sign_channel_announcement,
1021 ready_channel: InMemorySigner_Sign_ready_channel,
1022 clone: Some(InMemorySigner_clone_void),
1023 write: InMemorySigner_write_void,
1026 use lightning::chain::keysinterface::Sign as SignTraitImport;
1028 extern "C" fn InMemorySigner_Sign_get_per_commitment_point(this_arg: *const c_void, mut idx: u64) -> crate::c_types::PublicKey {
1029 let mut ret = <nativeInMemorySigner as SignTraitImport<>>::get_per_commitment_point(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, idx, secp256k1::SECP256K1);
1030 crate::c_types::PublicKey::from_rust(&ret)
1033 extern "C" fn InMemorySigner_Sign_release_commitment_secret(this_arg: *const c_void, mut idx: u64) -> crate::c_types::ThirtyTwoBytes {
1034 let mut ret = <nativeInMemorySigner as SignTraitImport<>>::release_commitment_secret(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, idx);
1035 crate::c_types::ThirtyTwoBytes { data: ret }
1038 extern "C" fn InMemorySigner_Sign_pubkeys(this_arg: *const c_void) -> crate::ln::chan_utils::ChannelPublicKeys {
1039 let mut ret = <nativeInMemorySigner as SignTraitImport<>>::pubkeys(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, );
1040 crate::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false }
1042 extern "C" fn InMemorySigner_Sign_set_pubkeys(trait_self_arg: &Sign) {
1043 // This is a bit race-y in the general case, but for our specific use-cases today, we're safe
1044 // Specifically, we must ensure that the first time we're called it can never be in parallel
1045 if trait_self_arg.pubkeys.inner.is_null() {
1046 unsafe { &mut *(trait_self_arg as *const Sign as *mut Sign) }.pubkeys = InMemorySigner_Sign_pubkeys(trait_self_arg.this_arg);
1050 extern "C" fn InMemorySigner_Sign_channel_keys_id(this_arg: *const c_void) -> crate::c_types::ThirtyTwoBytes {
1051 let mut ret = <nativeInMemorySigner as SignTraitImport<>>::channel_keys_id(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, );
1052 crate::c_types::ThirtyTwoBytes { data: ret }
1055 extern "C" fn InMemorySigner_Sign_sign_counterparty_commitment(this_arg: *const c_void, commitment_tx: &crate::ln::chan_utils::CommitmentTransaction) -> crate::c_types::derived::CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ {
1056 let mut ret = <nativeInMemorySigner as SignTraitImport<>>::sign_counterparty_commitment(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, unsafe { &*commitment_tx.inner }, secp256k1::SECP256K1);
1057 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { let (mut orig_ret_0_0, mut orig_ret_0_1) = o; let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.drain(..) { local_orig_ret_0_1.push( { crate::c_types::Signature::from_rust(&item) }); }; let mut local_ret_0 = (crate::c_types::Signature::from_rust(&orig_ret_0_0), local_orig_ret_0_1.into()).into(); local_ret_0 }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() };
1061 extern "C" fn InMemorySigner_Sign_sign_holder_commitment_and_htlcs(this_arg: *const c_void, commitment_tx: &crate::ln::chan_utils::HolderCommitmentTransaction) -> crate::c_types::derived::CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ {
1062 let mut ret = <nativeInMemorySigner as SignTraitImport<>>::sign_holder_commitment_and_htlcs(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, unsafe { &*commitment_tx.inner }, secp256k1::SECP256K1);
1063 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { let (mut orig_ret_0_0, mut orig_ret_0_1) = o; let mut local_orig_ret_0_1 = Vec::new(); for mut item in orig_ret_0_1.drain(..) { local_orig_ret_0_1.push( { crate::c_types::Signature::from_rust(&item) }); }; let mut local_ret_0 = (crate::c_types::Signature::from_rust(&orig_ret_0_0), local_orig_ret_0_1.into()).into(); local_ret_0 }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() };
1067 extern "C" fn InMemorySigner_Sign_sign_justice_transaction(this_arg: *const c_void, mut justice_tx: crate::c_types::Transaction, mut input: usize, mut amount: u64, per_commitment_key: *const [u8; 32], htlc: &crate::ln::chan_utils::HTLCOutputInCommitment) -> crate::c_types::derived::CResult_SignatureNoneZ {
1068 let mut local_htlc = if htlc.inner.is_null() { None } else { Some((* { unsafe { &*htlc.inner } }).clone()) };
1069 let mut ret = <nativeInMemorySigner as SignTraitImport<>>::sign_justice_transaction(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, &justice_tx.into_bitcoin(), input, amount, &::bitcoin::secp256k1::key::SecretKey::from_slice(&unsafe { *per_commitment_key}[..]).unwrap(), &local_htlc, secp256k1::SECP256K1);
1070 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::Signature::from_rust(&o) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() };
1074 extern "C" fn InMemorySigner_Sign_sign_counterparty_htlc_transaction(this_arg: *const c_void, mut htlc_tx: crate::c_types::Transaction, mut input: usize, mut amount: u64, mut per_commitment_point: crate::c_types::PublicKey, htlc: &crate::ln::chan_utils::HTLCOutputInCommitment) -> crate::c_types::derived::CResult_SignatureNoneZ {
1075 let mut ret = <nativeInMemorySigner as SignTraitImport<>>::sign_counterparty_htlc_transaction(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, &htlc_tx.into_bitcoin(), input, amount, &per_commitment_point.into_rust(), unsafe { &*htlc.inner }, secp256k1::SECP256K1);
1076 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::Signature::from_rust(&o) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() };
1080 extern "C" fn InMemorySigner_Sign_sign_closing_transaction(this_arg: *const c_void, mut closing_tx: crate::c_types::Transaction) -> crate::c_types::derived::CResult_SignatureNoneZ {
1081 let mut ret = <nativeInMemorySigner as SignTraitImport<>>::sign_closing_transaction(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, &closing_tx.into_bitcoin(), secp256k1::SECP256K1);
1082 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::Signature::from_rust(&o) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() };
1086 extern "C" fn InMemorySigner_Sign_sign_channel_announcement(this_arg: *const c_void, msg: &crate::ln::msgs::UnsignedChannelAnnouncement) -> crate::c_types::derived::CResult_SignatureNoneZ {
1087 let mut ret = <nativeInMemorySigner as SignTraitImport<>>::sign_channel_announcement(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, unsafe { &*msg.inner }, secp256k1::SECP256K1);
1088 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::Signature::from_rust(&o) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() };
1091 extern "C" fn InMemorySigner_Sign_ready_channel(this_arg: *mut c_void, channel_parameters: &crate::ln::chan_utils::ChannelTransactionParameters) {
1092 <nativeInMemorySigner as SignTraitImport<>>::ready_channel(unsafe { &mut *(this_arg as *mut nativeInMemorySigner) }, unsafe { &*channel_parameters.inner })
1096 pub extern "C" fn InMemorySigner_write(obj: &InMemorySigner) -> crate::c_types::derived::CVec_u8Z {
1097 crate::c_types::serialize_obj(unsafe { &*unsafe { &*obj }.inner })
1100 pub(crate) extern "C" fn InMemorySigner_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
1101 crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeInMemorySigner) })
1104 pub extern "C" fn InMemorySigner_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_InMemorySignerDecodeErrorZ {
1105 let res = crate::c_types::deserialize_obj(ser);
1106 let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::chain::keysinterface::InMemorySigner { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() };
1110 use lightning::chain::keysinterface::KeysManager as nativeKeysManagerImport;
1111 type nativeKeysManager = nativeKeysManagerImport;
1113 /// Simple KeysInterface implementor that takes a 32-byte seed for use as a BIP 32 extended key
1114 /// and derives keys from that.
1116 /// Your node_id is seed/0'
1117 /// ChannelMonitor closes may use seed/1'
1118 /// Cooperative closes may use seed/2'
1119 /// The two close keys may be needed to claim on-chain funds!
1122 pub struct KeysManager {
1123 /// Nearly everywhere, inner must be non-null, however in places where
1124 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
1125 pub inner: *mut nativeKeysManager,
1129 impl Drop for KeysManager {
1130 fn drop(&mut self) {
1131 if self.is_owned && !self.inner.is_null() {
1132 let _ = unsafe { Box::from_raw(self.inner) };
1137 pub extern "C" fn KeysManager_free(this_ptr: KeysManager) { }
1139 /// Used only if an object of this type is returned as a trait impl by a method
1140 extern "C" fn KeysManager_free_void(this_ptr: *mut c_void) {
1141 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeKeysManager); }
1144 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
1146 pub(crate) fn take_inner(mut self) -> *mut nativeKeysManager {
1147 assert!(self.is_owned);
1148 let ret = self.inner;
1149 self.inner = std::ptr::null_mut();
1153 /// Constructs a KeysManager from a 32-byte seed. If the seed is in some way biased (eg your
1154 /// CSRNG is busted) this may panic (but more importantly, you will possibly lose funds).
1155 /// starting_time isn't strictly required to actually be a time, but it must absolutely,
1156 /// without a doubt, be unique to this instance. ie if you start multiple times with the same
1157 /// seed, starting_time must be unique to each run. Thus, the easiest way to achieve this is to
1158 /// simply use the current time (with very high precision).
1160 /// The seed MUST be backed up safely prior to use so that the keys can be re-created, however,
1161 /// obviously, starting_time should be unique every time you reload the library - it is only
1162 /// used to generate new ephemeral key data (which will be stored by the individual channel if
1165 /// Note that the seed is required to recover certain on-chain funds independent of
1166 /// ChannelMonitor data, though a current copy of ChannelMonitor data is also required for any
1167 /// channel, and some on-chain during-closing funds.
1169 /// Note that until the 0.1 release there is no guarantee of backward compatibility between
1170 /// versions. Once the library is more fully supported, the docs will be updated to include a
1171 /// detailed description of the guarantee.
1174 pub extern "C" fn KeysManager_new(seed: *const [u8; 32], mut starting_time_secs: u64, mut starting_time_nanos: u32) -> KeysManager {
1175 let mut ret = lightning::chain::keysinterface::KeysManager::new(unsafe { &*seed}, starting_time_secs, starting_time_nanos);
1176 KeysManager { inner: Box::into_raw(Box::new(ret)), is_owned: true }
1179 /// Derive an old Sign containing per-channel secrets based on a key derivation parameters.
1181 /// Key derivation parameters are accessible through a per-channel secrets
1182 /// Sign::channel_keys_id and is provided inside DynamicOuputP2WSH in case of
1183 /// onchain output detection for which a corresponding delayed_payment_key must be derived.
1186 pub extern "C" fn KeysManager_derive_channel_keys(this_arg: &KeysManager, mut channel_value_satoshis: u64, params: *const [u8; 32]) -> crate::chain::keysinterface::InMemorySigner {
1187 let mut ret = unsafe { &*this_arg.inner }.derive_channel_keys(channel_value_satoshis, unsafe { &*params});
1188 crate::chain::keysinterface::InMemorySigner { inner: Box::into_raw(Box::new(ret)), is_owned: true }
1191 /// Creates a Transaction which spends the given descriptors to the given outputs, plus an
1192 /// output to the given change destination (if sufficient change value remains). The
1193 /// transaction will have a feerate, at least, of the given value.
1195 /// Returns `Err(())` if the output value is greater than the input value minus required fee or
1196 /// if a descriptor was duplicated.
1198 /// We do not enforce that outputs meet the dust limit or that any output scripts are standard.
1200 /// May panic if the `SpendableOutputDescriptor`s were not generated by Channels which used
1201 /// this KeysManager or one of the `InMemorySigner` created by this KeysManager.
1204 pub extern "C" fn KeysManager_spend_spendable_outputs(this_arg: &KeysManager, mut descriptors: crate::c_types::derived::CVec_SpendableOutputDescriptorZ, mut outputs: crate::c_types::derived::CVec_TxOutZ, mut change_destination_script: crate::c_types::derived::CVec_u8Z, mut feerate_sat_per_1000_weight: u32) -> crate::c_types::derived::CResult_TransactionNoneZ {
1205 let mut local_descriptors = Vec::new(); for mut item in descriptors.into_rust().drain(..) { local_descriptors.push( { item.into_native() }); };
1206 let mut local_outputs = Vec::new(); for mut item in outputs.into_rust().drain(..) { local_outputs.push( { item.into_rust() }); };
1207 let mut ret = unsafe { &*this_arg.inner }.spend_spendable_outputs(&local_descriptors.iter().collect::<Vec<_>>()[..], local_outputs, ::bitcoin::blockdata::script::Script::from(change_destination_script.into_rust()), feerate_sat_per_1000_weight, secp256k1::SECP256K1);
1208 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { let mut local_ret_0 = ::bitcoin::consensus::encode::serialize(&o); crate::c_types::Transaction::from_vec(local_ret_0) }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() };
1212 impl From<nativeKeysManager> for crate::chain::keysinterface::KeysInterface {
1213 fn from(obj: nativeKeysManager) -> Self {
1214 let mut rust_obj = KeysManager { inner: Box::into_raw(Box::new(obj)), is_owned: true };
1215 let mut ret = KeysManager_as_KeysInterface(&rust_obj);
1216 // We want to free rust_obj when ret gets drop()'d, not rust_obj, so wipe rust_obj's pointer and set ret's free() fn
1217 rust_obj.inner = std::ptr::null_mut();
1218 ret.free = Some(KeysManager_free_void);
1223 pub extern "C" fn KeysManager_as_KeysInterface(this_arg: &KeysManager) -> crate::chain::keysinterface::KeysInterface {
1224 crate::chain::keysinterface::KeysInterface {
1225 this_arg: unsafe { (*this_arg).inner as *mut c_void },
1227 get_node_secret: KeysManager_KeysInterface_get_node_secret,
1228 get_destination_script: KeysManager_KeysInterface_get_destination_script,
1229 get_shutdown_pubkey: KeysManager_KeysInterface_get_shutdown_pubkey,
1230 get_channel_signer: KeysManager_KeysInterface_get_channel_signer,
1231 get_secure_random_bytes: KeysManager_KeysInterface_get_secure_random_bytes,
1232 read_chan_signer: KeysManager_KeysInterface_read_chan_signer,
1235 use lightning::chain::keysinterface::KeysInterface as KeysInterfaceTraitImport;
1237 extern "C" fn KeysManager_KeysInterface_get_node_secret(this_arg: *const c_void) -> crate::c_types::SecretKey {
1238 let mut ret = <nativeKeysManager as KeysInterfaceTraitImport<>>::get_node_secret(unsafe { &mut *(this_arg as *mut nativeKeysManager) }, );
1239 crate::c_types::SecretKey::from_rust(ret)
1242 extern "C" fn KeysManager_KeysInterface_get_destination_script(this_arg: *const c_void) -> crate::c_types::derived::CVec_u8Z {
1243 let mut ret = <nativeKeysManager as KeysInterfaceTraitImport<>>::get_destination_script(unsafe { &mut *(this_arg as *mut nativeKeysManager) }, );
1244 ret.into_bytes().into()
1247 extern "C" fn KeysManager_KeysInterface_get_shutdown_pubkey(this_arg: *const c_void) -> crate::c_types::PublicKey {
1248 let mut ret = <nativeKeysManager as KeysInterfaceTraitImport<>>::get_shutdown_pubkey(unsafe { &mut *(this_arg as *mut nativeKeysManager) }, );
1249 crate::c_types::PublicKey::from_rust(&ret)
1252 extern "C" fn KeysManager_KeysInterface_get_channel_signer(this_arg: *const c_void, mut _inbound: bool, mut channel_value_satoshis: u64) -> crate::chain::keysinterface::Sign {
1253 let mut ret = <nativeKeysManager as KeysInterfaceTraitImport<>>::get_channel_signer(unsafe { &mut *(this_arg as *mut nativeKeysManager) }, _inbound, channel_value_satoshis);
1257 extern "C" fn KeysManager_KeysInterface_get_secure_random_bytes(this_arg: *const c_void) -> crate::c_types::ThirtyTwoBytes {
1258 let mut ret = <nativeKeysManager as KeysInterfaceTraitImport<>>::get_secure_random_bytes(unsafe { &mut *(this_arg as *mut nativeKeysManager) }, );
1259 crate::c_types::ThirtyTwoBytes { data: ret }
1262 extern "C" fn KeysManager_KeysInterface_read_chan_signer(this_arg: *const c_void, mut reader: crate::c_types::u8slice) -> crate::c_types::derived::CResult_SignDecodeErrorZ {
1263 let mut ret = <nativeKeysManager as KeysInterfaceTraitImport<>>::read_chan_signer(unsafe { &mut *(this_arg as *mut nativeKeysManager) }, reader.to_slice());
1264 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { o.into() }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() };