1 //! Various utilities for building scripts and deriving keys related to channels. These are
2 //! largely of interest for those implementing chain::keysinterface::ChannelKeys message signing
6 use bitcoin::hashes::Hash;
9 /// Build the commitment secret from the seed and the commitment number
11 pub extern "C" fn build_commitment_secret(commitment_seed: *const [u8; 32], mut idx: u64) -> crate::c_types::ThirtyTwoBytes {
12 let mut ret = lightning::ln::chan_utils::build_commitment_secret(unsafe { &*commitment_seed}, idx);
13 crate::c_types::ThirtyTwoBytes { data: ret }
16 /// Derives a per-commitment-transaction private key (eg an htlc key or delayed_payment key)
17 /// from the base secret and the per_commitment_point.
19 /// Note that this is infallible iff we trust that at least one of the two input keys are randomly
20 /// generated (ie our own).
22 pub extern "C" fn derive_private_key(mut per_commitment_point: crate::c_types::PublicKey, base_secret: *const [u8; 32]) -> crate::c_types::derived::CResult_SecretKeySecpErrorZ {
23 let mut ret = lightning::ln::chan_utils::derive_private_key(&bitcoin::secp256k1::Secp256k1::new(), &per_commitment_point.into_rust(), &::bitcoin::secp256k1::key::SecretKey::from_slice(&unsafe { *base_secret}[..]).unwrap());
24 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::SecretKey::from_rust(o) }), Err(mut e) => crate::c_types::CResultTempl::err( { crate::c_types::Secp256k1Error::from_rust(e) }) };
28 /// Derives a per-commitment-transaction public key (eg an htlc key or a delayed_payment key)
29 /// from the base point and the per_commitment_key. This is the public equivalent of
30 /// derive_private_key - using only public keys to derive a public key instead of private keys.
32 /// Note that this is infallible iff we trust that at least one of the two input keys are randomly
33 /// generated (ie our own).
35 pub extern "C" fn derive_public_key(mut per_commitment_point: crate::c_types::PublicKey, mut base_point: crate::c_types::PublicKey) -> crate::c_types::derived::CResult_PublicKeySecpErrorZ {
36 let mut ret = lightning::ln::chan_utils::derive_public_key(&bitcoin::secp256k1::Secp256k1::new(), &per_commitment_point.into_rust(), &base_point.into_rust());
37 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::PublicKey::from_rust(&o) }), Err(mut e) => crate::c_types::CResultTempl::err( { crate::c_types::Secp256k1Error::from_rust(e) }) };
41 /// Derives a per-commitment-transaction revocation key from its constituent parts.
43 /// Only the cheating participant owns a valid witness to propagate a revoked
44 /// commitment transaction, thus per_commitment_secret always come from cheater
45 /// and revocation_base_secret always come from punisher, which is the broadcaster
46 /// of the transaction spending with this key knowledge.
48 /// Note that this is infallible iff we trust that at least one of the two input keys are randomly
49 /// generated (ie our own).
51 pub extern "C" fn derive_private_revocation_key(per_commitment_secret: *const [u8; 32], countersignatory_revocation_base_secret: *const [u8; 32]) -> crate::c_types::derived::CResult_SecretKeySecpErrorZ {
52 let mut ret = lightning::ln::chan_utils::derive_private_revocation_key(&bitcoin::secp256k1::Secp256k1::new(), &::bitcoin::secp256k1::key::SecretKey::from_slice(&unsafe { *per_commitment_secret}[..]).unwrap(), &::bitcoin::secp256k1::key::SecretKey::from_slice(&unsafe { *countersignatory_revocation_base_secret}[..]).unwrap());
53 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::SecretKey::from_rust(o) }), Err(mut e) => crate::c_types::CResultTempl::err( { crate::c_types::Secp256k1Error::from_rust(e) }) };
57 /// Derives a per-commitment-transaction revocation public key from its constituent parts. This is
58 /// the public equivalend of derive_private_revocation_key - using only public keys to derive a
59 /// public key instead of private keys.
61 /// Only the cheating participant owns a valid witness to propagate a revoked
62 /// commitment transaction, thus per_commitment_point always come from cheater
63 /// and revocation_base_point always come from punisher, which is the broadcaster
64 /// of the transaction spending with this key knowledge.
66 /// Note that this is infallible iff we trust that at least one of the two input keys are randomly
67 /// generated (ie our own).
69 pub extern "C" fn derive_public_revocation_key(mut per_commitment_point: crate::c_types::PublicKey, mut countersignatory_revocation_base_point: crate::c_types::PublicKey) -> crate::c_types::derived::CResult_PublicKeySecpErrorZ {
70 let mut ret = lightning::ln::chan_utils::derive_public_revocation_key(&bitcoin::secp256k1::Secp256k1::new(), &per_commitment_point.into_rust(), &countersignatory_revocation_base_point.into_rust());
71 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::c_types::PublicKey::from_rust(&o) }), Err(mut e) => crate::c_types::CResultTempl::err( { crate::c_types::Secp256k1Error::from_rust(e) }) };
76 use lightning::ln::chan_utils::TxCreationKeys as nativeTxCreationKeysImport;
77 type nativeTxCreationKeys = nativeTxCreationKeysImport;
79 /// The set of public keys which are used in the creation of one commitment transaction.
80 /// These are derived from the channel base keys and per-commitment data.
82 /// A broadcaster key is provided from potential broadcaster of the computed transaction.
83 /// A countersignatory key is coming from a protocol participant unable to broadcast the
86 /// These keys are assumed to be good, either because the code derived them from
87 /// channel basepoints via the new function, or they were obtained via
88 /// CommitmentTransaction.trust().keys() because we trusted the source of the
89 /// pre-calculated keys.
92 pub struct TxCreationKeys {
93 /// Nearly everywhere, inner must be non-null, however in places where
94 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
95 pub inner: *mut nativeTxCreationKeys,
99 impl Drop for TxCreationKeys {
101 if self.is_owned && !self.inner.is_null() {
102 let _ = unsafe { Box::from_raw(self.inner) };
107 pub extern "C" fn TxCreationKeys_free(this_ptr: TxCreationKeys) { }
109 /// Used only if an object of this type is returned as a trait impl by a method
110 extern "C" fn TxCreationKeys_free_void(this_ptr: *mut c_void) {
111 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeTxCreationKeys); }
114 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
115 impl TxCreationKeys {
116 pub(crate) fn take_ptr(mut self) -> *mut nativeTxCreationKeys {
117 assert!(self.is_owned);
118 let ret = self.inner;
119 self.inner = std::ptr::null_mut();
123 impl Clone for TxCreationKeys {
124 fn clone(&self) -> Self {
126 inner: Box::into_raw(Box::new(unsafe { &*self.inner }.clone())),
132 /// Used only if an object of this type is returned as a trait impl by a method
133 pub(crate) extern "C" fn TxCreationKeys_clone_void(this_ptr: *const c_void) -> *mut c_void {
134 Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeTxCreationKeys)).clone() })) as *mut c_void
137 pub extern "C" fn TxCreationKeys_clone(orig: &TxCreationKeys) -> TxCreationKeys {
138 TxCreationKeys { inner: Box::into_raw(Box::new(unsafe { &*orig.inner }.clone())), is_owned: true }
140 /// The broadcaster's per-commitment public key which was used to derive the other keys.
142 pub extern "C" fn TxCreationKeys_get_per_commitment_point(this_ptr: &TxCreationKeys) -> crate::c_types::PublicKey {
143 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.per_commitment_point;
144 crate::c_types::PublicKey::from_rust(&(*inner_val))
146 /// The broadcaster's per-commitment public key which was used to derive the other keys.
148 pub extern "C" fn TxCreationKeys_set_per_commitment_point(this_ptr: &mut TxCreationKeys, mut val: crate::c_types::PublicKey) {
149 unsafe { &mut *this_ptr.inner }.per_commitment_point = val.into_rust();
151 /// The revocation key which is used to allow the broadcaster of the commitment
152 /// transaction to provide their counterparty the ability to punish them if they broadcast
155 pub extern "C" fn TxCreationKeys_get_revocation_key(this_ptr: &TxCreationKeys) -> crate::c_types::PublicKey {
156 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.revocation_key;
157 crate::c_types::PublicKey::from_rust(&(*inner_val))
159 /// The revocation key which is used to allow the broadcaster of the commitment
160 /// transaction to provide their counterparty the ability to punish them if they broadcast
163 pub extern "C" fn TxCreationKeys_set_revocation_key(this_ptr: &mut TxCreationKeys, mut val: crate::c_types::PublicKey) {
164 unsafe { &mut *this_ptr.inner }.revocation_key = val.into_rust();
166 /// Broadcaster's HTLC Key
168 pub extern "C" fn TxCreationKeys_get_broadcaster_htlc_key(this_ptr: &TxCreationKeys) -> crate::c_types::PublicKey {
169 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.broadcaster_htlc_key;
170 crate::c_types::PublicKey::from_rust(&(*inner_val))
172 /// Broadcaster's HTLC Key
174 pub extern "C" fn TxCreationKeys_set_broadcaster_htlc_key(this_ptr: &mut TxCreationKeys, mut val: crate::c_types::PublicKey) {
175 unsafe { &mut *this_ptr.inner }.broadcaster_htlc_key = val.into_rust();
177 /// Countersignatory's HTLC Key
179 pub extern "C" fn TxCreationKeys_get_countersignatory_htlc_key(this_ptr: &TxCreationKeys) -> crate::c_types::PublicKey {
180 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.countersignatory_htlc_key;
181 crate::c_types::PublicKey::from_rust(&(*inner_val))
183 /// Countersignatory's HTLC Key
185 pub extern "C" fn TxCreationKeys_set_countersignatory_htlc_key(this_ptr: &mut TxCreationKeys, mut val: crate::c_types::PublicKey) {
186 unsafe { &mut *this_ptr.inner }.countersignatory_htlc_key = val.into_rust();
188 /// Broadcaster's Payment Key (which isn't allowed to be spent from for some delay)
190 pub extern "C" fn TxCreationKeys_get_broadcaster_delayed_payment_key(this_ptr: &TxCreationKeys) -> crate::c_types::PublicKey {
191 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.broadcaster_delayed_payment_key;
192 crate::c_types::PublicKey::from_rust(&(*inner_val))
194 /// Broadcaster's Payment Key (which isn't allowed to be spent from for some delay)
196 pub extern "C" fn TxCreationKeys_set_broadcaster_delayed_payment_key(this_ptr: &mut TxCreationKeys, mut val: crate::c_types::PublicKey) {
197 unsafe { &mut *this_ptr.inner }.broadcaster_delayed_payment_key = val.into_rust();
201 pub extern "C" fn TxCreationKeys_new(mut per_commitment_point_arg: crate::c_types::PublicKey, mut revocation_key_arg: crate::c_types::PublicKey, mut broadcaster_htlc_key_arg: crate::c_types::PublicKey, mut countersignatory_htlc_key_arg: crate::c_types::PublicKey, mut broadcaster_delayed_payment_key_arg: crate::c_types::PublicKey) -> TxCreationKeys {
202 TxCreationKeys { inner: Box::into_raw(Box::new(nativeTxCreationKeys {
203 per_commitment_point: per_commitment_point_arg.into_rust(),
204 revocation_key: revocation_key_arg.into_rust(),
205 broadcaster_htlc_key: broadcaster_htlc_key_arg.into_rust(),
206 countersignatory_htlc_key: countersignatory_htlc_key_arg.into_rust(),
207 broadcaster_delayed_payment_key: broadcaster_delayed_payment_key_arg.into_rust(),
208 })), is_owned: true }
211 pub extern "C" fn TxCreationKeys_write(obj: *const TxCreationKeys) -> crate::c_types::derived::CVec_u8Z {
212 crate::c_types::serialize_obj(unsafe { &(*(*obj).inner) })
215 pub(crate) extern "C" fn TxCreationKeys_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
216 crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeTxCreationKeys) })
219 pub extern "C" fn TxCreationKeys_read(ser: crate::c_types::u8slice) -> TxCreationKeys {
220 if let Ok(res) = crate::c_types::deserialize_obj(ser) {
221 TxCreationKeys { inner: Box::into_raw(Box::new(res)), is_owned: true }
223 TxCreationKeys { inner: std::ptr::null_mut(), is_owned: true }
227 use lightning::ln::chan_utils::ChannelPublicKeys as nativeChannelPublicKeysImport;
228 type nativeChannelPublicKeys = nativeChannelPublicKeysImport;
230 /// One counterparty's public keys which do not change over the life of a channel.
233 pub struct ChannelPublicKeys {
234 /// Nearly everywhere, inner must be non-null, however in places where
235 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
236 pub inner: *mut nativeChannelPublicKeys,
240 impl Drop for ChannelPublicKeys {
242 if self.is_owned && !self.inner.is_null() {
243 let _ = unsafe { Box::from_raw(self.inner) };
248 pub extern "C" fn ChannelPublicKeys_free(this_ptr: ChannelPublicKeys) { }
250 /// Used only if an object of this type is returned as a trait impl by a method
251 extern "C" fn ChannelPublicKeys_free_void(this_ptr: *mut c_void) {
252 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeChannelPublicKeys); }
255 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
256 impl ChannelPublicKeys {
257 pub(crate) fn take_ptr(mut self) -> *mut nativeChannelPublicKeys {
258 assert!(self.is_owned);
259 let ret = self.inner;
260 self.inner = std::ptr::null_mut();
264 impl Clone for ChannelPublicKeys {
265 fn clone(&self) -> Self {
267 inner: Box::into_raw(Box::new(unsafe { &*self.inner }.clone())),
273 /// Used only if an object of this type is returned as a trait impl by a method
274 pub(crate) extern "C" fn ChannelPublicKeys_clone_void(this_ptr: *const c_void) -> *mut c_void {
275 Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeChannelPublicKeys)).clone() })) as *mut c_void
278 pub extern "C" fn ChannelPublicKeys_clone(orig: &ChannelPublicKeys) -> ChannelPublicKeys {
279 ChannelPublicKeys { inner: Box::into_raw(Box::new(unsafe { &*orig.inner }.clone())), is_owned: true }
281 /// The public key which is used to sign all commitment transactions, as it appears in the
282 /// on-chain channel lock-in 2-of-2 multisig output.
284 pub extern "C" fn ChannelPublicKeys_get_funding_pubkey(this_ptr: &ChannelPublicKeys) -> crate::c_types::PublicKey {
285 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.funding_pubkey;
286 crate::c_types::PublicKey::from_rust(&(*inner_val))
288 /// The public key which is used to sign all commitment transactions, as it appears in the
289 /// on-chain channel lock-in 2-of-2 multisig output.
291 pub extern "C" fn ChannelPublicKeys_set_funding_pubkey(this_ptr: &mut ChannelPublicKeys, mut val: crate::c_types::PublicKey) {
292 unsafe { &mut *this_ptr.inner }.funding_pubkey = val.into_rust();
294 /// The base point which is used (with derive_public_revocation_key) to derive per-commitment
295 /// revocation keys. This is combined with the per-commitment-secret generated by the
296 /// counterparty to create a secret which the counterparty can reveal to revoke previous
299 pub extern "C" fn ChannelPublicKeys_get_revocation_basepoint(this_ptr: &ChannelPublicKeys) -> crate::c_types::PublicKey {
300 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.revocation_basepoint;
301 crate::c_types::PublicKey::from_rust(&(*inner_val))
303 /// The base point which is used (with derive_public_revocation_key) to derive per-commitment
304 /// revocation keys. This is combined with the per-commitment-secret generated by the
305 /// counterparty to create a secret which the counterparty can reveal to revoke previous
308 pub extern "C" fn ChannelPublicKeys_set_revocation_basepoint(this_ptr: &mut ChannelPublicKeys, mut val: crate::c_types::PublicKey) {
309 unsafe { &mut *this_ptr.inner }.revocation_basepoint = val.into_rust();
311 /// The public key on which the non-broadcaster (ie the countersignatory) receives an immediately
312 /// spendable primary channel balance on the broadcaster's commitment transaction. This key is
313 /// static across every commitment transaction.
315 pub extern "C" fn ChannelPublicKeys_get_payment_point(this_ptr: &ChannelPublicKeys) -> crate::c_types::PublicKey {
316 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.payment_point;
317 crate::c_types::PublicKey::from_rust(&(*inner_val))
319 /// The public key on which the non-broadcaster (ie the countersignatory) receives an immediately
320 /// spendable primary channel balance on the broadcaster's commitment transaction. This key is
321 /// static across every commitment transaction.
323 pub extern "C" fn ChannelPublicKeys_set_payment_point(this_ptr: &mut ChannelPublicKeys, mut val: crate::c_types::PublicKey) {
324 unsafe { &mut *this_ptr.inner }.payment_point = val.into_rust();
326 /// The base point which is used (with derive_public_key) to derive a per-commitment payment
327 /// public key which receives non-HTLC-encumbered funds which are only available for spending
328 /// after some delay (or can be claimed via the revocation path).
330 pub extern "C" fn ChannelPublicKeys_get_delayed_payment_basepoint(this_ptr: &ChannelPublicKeys) -> crate::c_types::PublicKey {
331 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.delayed_payment_basepoint;
332 crate::c_types::PublicKey::from_rust(&(*inner_val))
334 /// The base point which is used (with derive_public_key) to derive a per-commitment payment
335 /// public key which receives non-HTLC-encumbered funds which are only available for spending
336 /// after some delay (or can be claimed via the revocation path).
338 pub extern "C" fn ChannelPublicKeys_set_delayed_payment_basepoint(this_ptr: &mut ChannelPublicKeys, mut val: crate::c_types::PublicKey) {
339 unsafe { &mut *this_ptr.inner }.delayed_payment_basepoint = val.into_rust();
341 /// The base point which is used (with derive_public_key) to derive a per-commitment public key
342 /// which is used to encumber HTLC-in-flight outputs.
344 pub extern "C" fn ChannelPublicKeys_get_htlc_basepoint(this_ptr: &ChannelPublicKeys) -> crate::c_types::PublicKey {
345 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.htlc_basepoint;
346 crate::c_types::PublicKey::from_rust(&(*inner_val))
348 /// The base point which is used (with derive_public_key) to derive a per-commitment public key
349 /// which is used to encumber HTLC-in-flight outputs.
351 pub extern "C" fn ChannelPublicKeys_set_htlc_basepoint(this_ptr: &mut ChannelPublicKeys, mut val: crate::c_types::PublicKey) {
352 unsafe { &mut *this_ptr.inner }.htlc_basepoint = val.into_rust();
356 pub extern "C" fn ChannelPublicKeys_new(mut funding_pubkey_arg: crate::c_types::PublicKey, mut revocation_basepoint_arg: crate::c_types::PublicKey, mut payment_point_arg: crate::c_types::PublicKey, mut delayed_payment_basepoint_arg: crate::c_types::PublicKey, mut htlc_basepoint_arg: crate::c_types::PublicKey) -> ChannelPublicKeys {
357 ChannelPublicKeys { inner: Box::into_raw(Box::new(nativeChannelPublicKeys {
358 funding_pubkey: funding_pubkey_arg.into_rust(),
359 revocation_basepoint: revocation_basepoint_arg.into_rust(),
360 payment_point: payment_point_arg.into_rust(),
361 delayed_payment_basepoint: delayed_payment_basepoint_arg.into_rust(),
362 htlc_basepoint: htlc_basepoint_arg.into_rust(),
363 })), is_owned: true }
366 pub extern "C" fn ChannelPublicKeys_write(obj: *const ChannelPublicKeys) -> crate::c_types::derived::CVec_u8Z {
367 crate::c_types::serialize_obj(unsafe { &(*(*obj).inner) })
370 pub(crate) extern "C" fn ChannelPublicKeys_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
371 crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeChannelPublicKeys) })
374 pub extern "C" fn ChannelPublicKeys_read(ser: crate::c_types::u8slice) -> ChannelPublicKeys {
375 if let Ok(res) = crate::c_types::deserialize_obj(ser) {
376 ChannelPublicKeys { inner: Box::into_raw(Box::new(res)), is_owned: true }
378 ChannelPublicKeys { inner: std::ptr::null_mut(), is_owned: true }
381 /// Create per-state keys from channel base points and the per-commitment point.
382 /// Key set is asymmetric and can't be used as part of counter-signatory set of transactions.
385 pub extern "C" fn TxCreationKeys_derive_new(mut per_commitment_point: crate::c_types::PublicKey, mut broadcaster_delayed_payment_base: crate::c_types::PublicKey, mut broadcaster_htlc_base: crate::c_types::PublicKey, mut countersignatory_revocation_base: crate::c_types::PublicKey, mut countersignatory_htlc_base: crate::c_types::PublicKey) -> crate::c_types::derived::CResult_TxCreationKeysSecpErrorZ {
386 let mut ret = lightning::ln::chan_utils::TxCreationKeys::derive_new(&bitcoin::secp256k1::Secp256k1::new(), &per_commitment_point.into_rust(), &broadcaster_delayed_payment_base.into_rust(), &broadcaster_htlc_base.into_rust(), &countersignatory_revocation_base.into_rust(), &countersignatory_htlc_base.into_rust());
387 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::ln::chan_utils::TxCreationKeys { inner: Box::into_raw(Box::new(o)), is_owned: true } }), Err(mut e) => crate::c_types::CResultTempl::err( { crate::c_types::Secp256k1Error::from_rust(e) }) };
391 /// Generate per-state keys from channel static keys.
392 /// Key set is asymmetric and can't be used as part of counter-signatory set of transactions.
395 pub extern "C" fn TxCreationKeys_from_channel_static_keys(mut per_commitment_point: crate::c_types::PublicKey, broadcaster_keys: &crate::ln::chan_utils::ChannelPublicKeys, countersignatory_keys: &crate::ln::chan_utils::ChannelPublicKeys) -> crate::c_types::derived::CResult_TxCreationKeysSecpErrorZ {
396 let mut ret = lightning::ln::chan_utils::TxCreationKeys::from_channel_static_keys(&per_commitment_point.into_rust(), unsafe { &*broadcaster_keys.inner }, unsafe { &*countersignatory_keys.inner }, &bitcoin::secp256k1::Secp256k1::new());
397 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::ln::chan_utils::TxCreationKeys { inner: Box::into_raw(Box::new(o)), is_owned: true } }), Err(mut e) => crate::c_types::CResultTempl::err( { crate::c_types::Secp256k1Error::from_rust(e) }) };
401 /// A script either spendable by the revocation
402 /// key or the broadcaster_delayed_payment_key and satisfying the relative-locktime OP_CSV constrain.
403 /// Encumbering a `to_holder` output on a commitment transaction or 2nd-stage HTLC transactions.
405 pub extern "C" fn get_revokeable_redeemscript(mut revocation_key: crate::c_types::PublicKey, mut contest_delay: u16, mut broadcaster_delayed_payment_key: crate::c_types::PublicKey) -> crate::c_types::derived::CVec_u8Z {
406 let mut ret = lightning::ln::chan_utils::get_revokeable_redeemscript(&revocation_key.into_rust(), contest_delay, &broadcaster_delayed_payment_key.into_rust());
407 ret.into_bytes().into()
411 use lightning::ln::chan_utils::HTLCOutputInCommitment as nativeHTLCOutputInCommitmentImport;
412 type nativeHTLCOutputInCommitment = nativeHTLCOutputInCommitmentImport;
414 /// Information about an HTLC as it appears in a commitment transaction
417 pub struct HTLCOutputInCommitment {
418 /// Nearly everywhere, inner must be non-null, however in places where
419 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
420 pub inner: *mut nativeHTLCOutputInCommitment,
424 impl Drop for HTLCOutputInCommitment {
426 if self.is_owned && !self.inner.is_null() {
427 let _ = unsafe { Box::from_raw(self.inner) };
432 pub extern "C" fn HTLCOutputInCommitment_free(this_ptr: HTLCOutputInCommitment) { }
434 /// Used only if an object of this type is returned as a trait impl by a method
435 extern "C" fn HTLCOutputInCommitment_free_void(this_ptr: *mut c_void) {
436 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeHTLCOutputInCommitment); }
439 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
440 impl HTLCOutputInCommitment {
441 pub(crate) fn take_ptr(mut self) -> *mut nativeHTLCOutputInCommitment {
442 assert!(self.is_owned);
443 let ret = self.inner;
444 self.inner = std::ptr::null_mut();
448 impl Clone for HTLCOutputInCommitment {
449 fn clone(&self) -> Self {
451 inner: Box::into_raw(Box::new(unsafe { &*self.inner }.clone())),
457 /// Used only if an object of this type is returned as a trait impl by a method
458 pub(crate) extern "C" fn HTLCOutputInCommitment_clone_void(this_ptr: *const c_void) -> *mut c_void {
459 Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeHTLCOutputInCommitment)).clone() })) as *mut c_void
462 pub extern "C" fn HTLCOutputInCommitment_clone(orig: &HTLCOutputInCommitment) -> HTLCOutputInCommitment {
463 HTLCOutputInCommitment { inner: Box::into_raw(Box::new(unsafe { &*orig.inner }.clone())), is_owned: true }
465 /// Whether the HTLC was \"offered\" (ie outbound in relation to this commitment transaction).
466 /// Note that this is not the same as whether it is ountbound *from us*. To determine that you
467 /// need to compare this value to whether the commitment transaction in question is that of
468 /// the counterparty or our own.
470 pub extern "C" fn HTLCOutputInCommitment_get_offered(this_ptr: &HTLCOutputInCommitment) -> bool {
471 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.offered;
474 /// Whether the HTLC was \"offered\" (ie outbound in relation to this commitment transaction).
475 /// Note that this is not the same as whether it is ountbound *from us*. To determine that you
476 /// need to compare this value to whether the commitment transaction in question is that of
477 /// the counterparty or our own.
479 pub extern "C" fn HTLCOutputInCommitment_set_offered(this_ptr: &mut HTLCOutputInCommitment, mut val: bool) {
480 unsafe { &mut *this_ptr.inner }.offered = val;
482 /// The value, in msat, of the HTLC. The value as it appears in the commitment transaction is
483 /// this divided by 1000.
485 pub extern "C" fn HTLCOutputInCommitment_get_amount_msat(this_ptr: &HTLCOutputInCommitment) -> u64 {
486 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.amount_msat;
489 /// The value, in msat, of the HTLC. The value as it appears in the commitment transaction is
490 /// this divided by 1000.
492 pub extern "C" fn HTLCOutputInCommitment_set_amount_msat(this_ptr: &mut HTLCOutputInCommitment, mut val: u64) {
493 unsafe { &mut *this_ptr.inner }.amount_msat = val;
495 /// The CLTV lock-time at which this HTLC expires.
497 pub extern "C" fn HTLCOutputInCommitment_get_cltv_expiry(this_ptr: &HTLCOutputInCommitment) -> u32 {
498 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.cltv_expiry;
501 /// The CLTV lock-time at which this HTLC expires.
503 pub extern "C" fn HTLCOutputInCommitment_set_cltv_expiry(this_ptr: &mut HTLCOutputInCommitment, mut val: u32) {
504 unsafe { &mut *this_ptr.inner }.cltv_expiry = val;
506 /// The hash of the preimage which unlocks this HTLC.
508 pub extern "C" fn HTLCOutputInCommitment_get_payment_hash(this_ptr: &HTLCOutputInCommitment) -> *const [u8; 32] {
509 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.payment_hash;
512 /// The hash of the preimage which unlocks this HTLC.
514 pub extern "C" fn HTLCOutputInCommitment_set_payment_hash(this_ptr: &mut HTLCOutputInCommitment, mut val: crate::c_types::ThirtyTwoBytes) {
515 unsafe { &mut *this_ptr.inner }.payment_hash = ::lightning::ln::channelmanager::PaymentHash(val.data);
518 pub extern "C" fn HTLCOutputInCommitment_write(obj: *const HTLCOutputInCommitment) -> crate::c_types::derived::CVec_u8Z {
519 crate::c_types::serialize_obj(unsafe { &(*(*obj).inner) })
522 pub(crate) extern "C" fn HTLCOutputInCommitment_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
523 crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeHTLCOutputInCommitment) })
526 pub extern "C" fn HTLCOutputInCommitment_read(ser: crate::c_types::u8slice) -> HTLCOutputInCommitment {
527 if let Ok(res) = crate::c_types::deserialize_obj(ser) {
528 HTLCOutputInCommitment { inner: Box::into_raw(Box::new(res)), is_owned: true }
530 HTLCOutputInCommitment { inner: std::ptr::null_mut(), is_owned: true }
533 /// Gets the witness redeemscript for an HTLC output in a commitment transaction. Note that htlc
534 /// does not need to have its previous_output_index filled.
536 pub extern "C" fn get_htlc_redeemscript(htlc: &crate::ln::chan_utils::HTLCOutputInCommitment, keys: &crate::ln::chan_utils::TxCreationKeys) -> crate::c_types::derived::CVec_u8Z {
537 let mut ret = lightning::ln::chan_utils::get_htlc_redeemscript(unsafe { &*htlc.inner }, unsafe { &*keys.inner });
538 ret.into_bytes().into()
541 /// Gets the redeemscript for a funding output from the two funding public keys.
542 /// Note that the order of funding public keys does not matter.
544 pub extern "C" fn make_funding_redeemscript(mut broadcaster: crate::c_types::PublicKey, mut countersignatory: crate::c_types::PublicKey) -> crate::c_types::derived::CVec_u8Z {
545 let mut ret = lightning::ln::chan_utils::make_funding_redeemscript(&broadcaster.into_rust(), &countersignatory.into_rust());
546 ret.into_bytes().into()
549 /// panics if htlc.transaction_output_index.is_none()!
551 pub extern "C" fn build_htlc_transaction(prev_hash: *const [u8; 32], mut feerate_per_kw: u32, mut contest_delay: u16, htlc: &crate::ln::chan_utils::HTLCOutputInCommitment, mut broadcaster_delayed_payment_key: crate::c_types::PublicKey, mut revocation_key: crate::c_types::PublicKey) -> crate::c_types::Transaction {
552 let mut ret = lightning::ln::chan_utils::build_htlc_transaction(&::bitcoin::hash_types::Txid::from_slice(&unsafe { &*prev_hash }[..]).unwrap(), feerate_per_kw, contest_delay, unsafe { &*htlc.inner }, &broadcaster_delayed_payment_key.into_rust(), &revocation_key.into_rust());
553 let mut local_ret = ::bitcoin::consensus::encode::serialize(&ret);
554 crate::c_types::Transaction::from_vec(local_ret)
558 use lightning::ln::chan_utils::ChannelTransactionParameters as nativeChannelTransactionParametersImport;
559 type nativeChannelTransactionParameters = nativeChannelTransactionParametersImport;
561 /// Per-channel data used to build transactions in conjunction with the per-commitment data (CommitmentTransaction).
562 /// The fields are organized by holder/counterparty.
564 /// Normally, this is converted to the broadcaster/countersignatory-organized DirectedChannelTransactionParameters
565 /// before use, via the as_holder_broadcastable and as_counterparty_broadcastable functions.
568 pub struct ChannelTransactionParameters {
569 /// Nearly everywhere, inner must be non-null, however in places where
570 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
571 pub inner: *mut nativeChannelTransactionParameters,
575 impl Drop for ChannelTransactionParameters {
577 if self.is_owned && !self.inner.is_null() {
578 let _ = unsafe { Box::from_raw(self.inner) };
583 pub extern "C" fn ChannelTransactionParameters_free(this_ptr: ChannelTransactionParameters) { }
585 /// Used only if an object of this type is returned as a trait impl by a method
586 extern "C" fn ChannelTransactionParameters_free_void(this_ptr: *mut c_void) {
587 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeChannelTransactionParameters); }
590 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
591 impl ChannelTransactionParameters {
592 pub(crate) fn take_ptr(mut self) -> *mut nativeChannelTransactionParameters {
593 assert!(self.is_owned);
594 let ret = self.inner;
595 self.inner = std::ptr::null_mut();
599 impl Clone for ChannelTransactionParameters {
600 fn clone(&self) -> Self {
602 inner: Box::into_raw(Box::new(unsafe { &*self.inner }.clone())),
608 /// Used only if an object of this type is returned as a trait impl by a method
609 pub(crate) extern "C" fn ChannelTransactionParameters_clone_void(this_ptr: *const c_void) -> *mut c_void {
610 Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeChannelTransactionParameters)).clone() })) as *mut c_void
613 pub extern "C" fn ChannelTransactionParameters_clone(orig: &ChannelTransactionParameters) -> ChannelTransactionParameters {
614 ChannelTransactionParameters { inner: Box::into_raw(Box::new(unsafe { &*orig.inner }.clone())), is_owned: true }
616 /// Holder public keys
618 pub extern "C" fn ChannelTransactionParameters_get_holder_pubkeys(this_ptr: &ChannelTransactionParameters) -> crate::ln::chan_utils::ChannelPublicKeys {
619 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.holder_pubkeys;
620 crate::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ( (&((*inner_val)) as *const _) as *mut _) }, is_owned: false }
622 /// Holder public keys
624 pub extern "C" fn ChannelTransactionParameters_set_holder_pubkeys(this_ptr: &mut ChannelTransactionParameters, mut val: crate::ln::chan_utils::ChannelPublicKeys) {
625 unsafe { &mut *this_ptr.inner }.holder_pubkeys = *unsafe { Box::from_raw(val.take_ptr()) };
627 /// The contest delay selected by the holder, which applies to counterparty-broadcast transactions
629 pub extern "C" fn ChannelTransactionParameters_get_holder_selected_contest_delay(this_ptr: &ChannelTransactionParameters) -> u16 {
630 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.holder_selected_contest_delay;
633 /// The contest delay selected by the holder, which applies to counterparty-broadcast transactions
635 pub extern "C" fn ChannelTransactionParameters_set_holder_selected_contest_delay(this_ptr: &mut ChannelTransactionParameters, mut val: u16) {
636 unsafe { &mut *this_ptr.inner }.holder_selected_contest_delay = val;
638 /// Whether the holder is the initiator of this channel.
639 /// This is an input to the commitment number obscure factor computation.
641 pub extern "C" fn ChannelTransactionParameters_get_is_outbound_from_holder(this_ptr: &ChannelTransactionParameters) -> bool {
642 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.is_outbound_from_holder;
645 /// Whether the holder is the initiator of this channel.
646 /// This is an input to the commitment number obscure factor computation.
648 pub extern "C" fn ChannelTransactionParameters_set_is_outbound_from_holder(this_ptr: &mut ChannelTransactionParameters, mut val: bool) {
649 unsafe { &mut *this_ptr.inner }.is_outbound_from_holder = val;
651 /// The late-bound counterparty channel transaction parameters.
652 /// These parameters are populated at the point in the protocol where the counterparty provides them.
654 pub extern "C" fn ChannelTransactionParameters_get_counterparty_parameters(this_ptr: &ChannelTransactionParameters) -> crate::ln::chan_utils::CounterpartyChannelTransactionParameters {
655 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.counterparty_parameters;
656 let mut local_inner_val = crate::ln::chan_utils::CounterpartyChannelTransactionParameters { inner: unsafe { (if inner_val.is_none() { std::ptr::null() } else { { (inner_val.as_ref().unwrap()) } } as *const _) as *mut _ }, is_owned: false };
659 /// The late-bound counterparty channel transaction parameters.
660 /// These parameters are populated at the point in the protocol where the counterparty provides them.
662 pub extern "C" fn ChannelTransactionParameters_set_counterparty_parameters(this_ptr: &mut ChannelTransactionParameters, mut val: crate::ln::chan_utils::CounterpartyChannelTransactionParameters) {
663 let mut local_val = if val.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(val.take_ptr()) } }) };
664 unsafe { &mut *this_ptr.inner }.counterparty_parameters = local_val;
666 /// The late-bound funding outpoint
668 pub extern "C" fn ChannelTransactionParameters_get_funding_outpoint(this_ptr: &ChannelTransactionParameters) -> crate::chain::transaction::OutPoint {
669 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.funding_outpoint;
670 let mut local_inner_val = crate::chain::transaction::OutPoint { inner: unsafe { (if inner_val.is_none() { std::ptr::null() } else { { (inner_val.as_ref().unwrap()) } } as *const _) as *mut _ }, is_owned: false };
673 /// The late-bound funding outpoint
675 pub extern "C" fn ChannelTransactionParameters_set_funding_outpoint(this_ptr: &mut ChannelTransactionParameters, mut val: crate::chain::transaction::OutPoint) {
676 let mut local_val = if val.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(val.take_ptr()) } }) };
677 unsafe { &mut *this_ptr.inner }.funding_outpoint = local_val;
681 pub extern "C" fn ChannelTransactionParameters_new(mut holder_pubkeys_arg: crate::ln::chan_utils::ChannelPublicKeys, mut holder_selected_contest_delay_arg: u16, mut is_outbound_from_holder_arg: bool, mut counterparty_parameters_arg: crate::ln::chan_utils::CounterpartyChannelTransactionParameters, mut funding_outpoint_arg: crate::chain::transaction::OutPoint) -> ChannelTransactionParameters {
682 let mut local_counterparty_parameters_arg = if counterparty_parameters_arg.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(counterparty_parameters_arg.take_ptr()) } }) };
683 let mut local_funding_outpoint_arg = if funding_outpoint_arg.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(funding_outpoint_arg.take_ptr()) } }) };
684 ChannelTransactionParameters { inner: Box::into_raw(Box::new(nativeChannelTransactionParameters {
685 holder_pubkeys: *unsafe { Box::from_raw(holder_pubkeys_arg.take_ptr()) },
686 holder_selected_contest_delay: holder_selected_contest_delay_arg,
687 is_outbound_from_holder: is_outbound_from_holder_arg,
688 counterparty_parameters: local_counterparty_parameters_arg,
689 funding_outpoint: local_funding_outpoint_arg,
690 })), is_owned: true }
693 use lightning::ln::chan_utils::CounterpartyChannelTransactionParameters as nativeCounterpartyChannelTransactionParametersImport;
694 type nativeCounterpartyChannelTransactionParameters = nativeCounterpartyChannelTransactionParametersImport;
696 /// Late-bound per-channel counterparty data used to build transactions.
699 pub struct CounterpartyChannelTransactionParameters {
700 /// Nearly everywhere, inner must be non-null, however in places where
701 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
702 pub inner: *mut nativeCounterpartyChannelTransactionParameters,
706 impl Drop for CounterpartyChannelTransactionParameters {
708 if self.is_owned && !self.inner.is_null() {
709 let _ = unsafe { Box::from_raw(self.inner) };
714 pub extern "C" fn CounterpartyChannelTransactionParameters_free(this_ptr: CounterpartyChannelTransactionParameters) { }
716 /// Used only if an object of this type is returned as a trait impl by a method
717 extern "C" fn CounterpartyChannelTransactionParameters_free_void(this_ptr: *mut c_void) {
718 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeCounterpartyChannelTransactionParameters); }
721 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
722 impl CounterpartyChannelTransactionParameters {
723 pub(crate) fn take_ptr(mut self) -> *mut nativeCounterpartyChannelTransactionParameters {
724 assert!(self.is_owned);
725 let ret = self.inner;
726 self.inner = std::ptr::null_mut();
730 impl Clone for CounterpartyChannelTransactionParameters {
731 fn clone(&self) -> Self {
733 inner: Box::into_raw(Box::new(unsafe { &*self.inner }.clone())),
739 /// Used only if an object of this type is returned as a trait impl by a method
740 pub(crate) extern "C" fn CounterpartyChannelTransactionParameters_clone_void(this_ptr: *const c_void) -> *mut c_void {
741 Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeCounterpartyChannelTransactionParameters)).clone() })) as *mut c_void
744 pub extern "C" fn CounterpartyChannelTransactionParameters_clone(orig: &CounterpartyChannelTransactionParameters) -> CounterpartyChannelTransactionParameters {
745 CounterpartyChannelTransactionParameters { inner: Box::into_raw(Box::new(unsafe { &*orig.inner }.clone())), is_owned: true }
747 /// Counter-party public keys
749 pub extern "C" fn CounterpartyChannelTransactionParameters_get_pubkeys(this_ptr: &CounterpartyChannelTransactionParameters) -> crate::ln::chan_utils::ChannelPublicKeys {
750 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.pubkeys;
751 crate::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ( (&((*inner_val)) as *const _) as *mut _) }, is_owned: false }
753 /// Counter-party public keys
755 pub extern "C" fn CounterpartyChannelTransactionParameters_set_pubkeys(this_ptr: &mut CounterpartyChannelTransactionParameters, mut val: crate::ln::chan_utils::ChannelPublicKeys) {
756 unsafe { &mut *this_ptr.inner }.pubkeys = *unsafe { Box::from_raw(val.take_ptr()) };
758 /// The contest delay selected by the counterparty, which applies to holder-broadcast transactions
760 pub extern "C" fn CounterpartyChannelTransactionParameters_get_selected_contest_delay(this_ptr: &CounterpartyChannelTransactionParameters) -> u16 {
761 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.selected_contest_delay;
764 /// The contest delay selected by the counterparty, which applies to holder-broadcast transactions
766 pub extern "C" fn CounterpartyChannelTransactionParameters_set_selected_contest_delay(this_ptr: &mut CounterpartyChannelTransactionParameters, mut val: u16) {
767 unsafe { &mut *this_ptr.inner }.selected_contest_delay = val;
771 pub extern "C" fn CounterpartyChannelTransactionParameters_new(mut pubkeys_arg: crate::ln::chan_utils::ChannelPublicKeys, mut selected_contest_delay_arg: u16) -> CounterpartyChannelTransactionParameters {
772 CounterpartyChannelTransactionParameters { inner: Box::into_raw(Box::new(nativeCounterpartyChannelTransactionParameters {
773 pubkeys: *unsafe { Box::from_raw(pubkeys_arg.take_ptr()) },
774 selected_contest_delay: selected_contest_delay_arg,
775 })), is_owned: true }
777 /// Whether the late bound parameters are populated.
780 pub extern "C" fn ChannelTransactionParameters_is_populated(this_arg: &ChannelTransactionParameters) -> bool {
781 let mut ret = unsafe { &*this_arg.inner }.is_populated();
785 /// Convert the holder/counterparty parameters to broadcaster/countersignatory-organized parameters,
786 /// given that the holder is the broadcaster.
788 /// self.is_populated() must be true before calling this function.
791 pub extern "C" fn ChannelTransactionParameters_as_holder_broadcastable(this_arg: &ChannelTransactionParameters) -> crate::ln::chan_utils::DirectedChannelTransactionParameters {
792 let mut ret = unsafe { &*this_arg.inner }.as_holder_broadcastable();
793 crate::ln::chan_utils::DirectedChannelTransactionParameters { inner: Box::into_raw(Box::new(ret)), is_owned: true }
796 /// Convert the holder/counterparty parameters to broadcaster/countersignatory-organized parameters,
797 /// given that the counterparty is the broadcaster.
799 /// self.is_populated() must be true before calling this function.
802 pub extern "C" fn ChannelTransactionParameters_as_counterparty_broadcastable(this_arg: &ChannelTransactionParameters) -> crate::ln::chan_utils::DirectedChannelTransactionParameters {
803 let mut ret = unsafe { &*this_arg.inner }.as_counterparty_broadcastable();
804 crate::ln::chan_utils::DirectedChannelTransactionParameters { inner: Box::into_raw(Box::new(ret)), is_owned: true }
808 pub extern "C" fn CounterpartyChannelTransactionParameters_write(obj: *const CounterpartyChannelTransactionParameters) -> crate::c_types::derived::CVec_u8Z {
809 crate::c_types::serialize_obj(unsafe { &(*(*obj).inner) })
812 pub(crate) extern "C" fn CounterpartyChannelTransactionParameters_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
813 crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeCounterpartyChannelTransactionParameters) })
816 pub extern "C" fn CounterpartyChannelTransactionParameters_read(ser: crate::c_types::u8slice) -> CounterpartyChannelTransactionParameters {
817 if let Ok(res) = crate::c_types::deserialize_obj(ser) {
818 CounterpartyChannelTransactionParameters { inner: Box::into_raw(Box::new(res)), is_owned: true }
820 CounterpartyChannelTransactionParameters { inner: std::ptr::null_mut(), is_owned: true }
824 pub extern "C" fn ChannelTransactionParameters_write(obj: *const ChannelTransactionParameters) -> crate::c_types::derived::CVec_u8Z {
825 crate::c_types::serialize_obj(unsafe { &(*(*obj).inner) })
828 pub(crate) extern "C" fn ChannelTransactionParameters_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
829 crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeChannelTransactionParameters) })
832 pub extern "C" fn ChannelTransactionParameters_read(ser: crate::c_types::u8slice) -> ChannelTransactionParameters {
833 if let Ok(res) = crate::c_types::deserialize_obj(ser) {
834 ChannelTransactionParameters { inner: Box::into_raw(Box::new(res)), is_owned: true }
836 ChannelTransactionParameters { inner: std::ptr::null_mut(), is_owned: true }
840 use lightning::ln::chan_utils::DirectedChannelTransactionParameters as nativeDirectedChannelTransactionParametersImport;
841 type nativeDirectedChannelTransactionParameters = nativeDirectedChannelTransactionParametersImport<'static>;
843 /// Static channel fields used to build transactions given per-commitment fields, organized by
844 /// broadcaster/countersignatory.
846 /// This is derived from the holder/counterparty-organized ChannelTransactionParameters via the
847 /// as_holder_broadcastable and as_counterparty_broadcastable functions.
850 pub struct DirectedChannelTransactionParameters {
851 /// Nearly everywhere, inner must be non-null, however in places where
852 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
853 pub inner: *mut nativeDirectedChannelTransactionParameters,
857 impl Drop for DirectedChannelTransactionParameters {
859 if self.is_owned && !self.inner.is_null() {
860 let _ = unsafe { Box::from_raw(self.inner) };
865 pub extern "C" fn DirectedChannelTransactionParameters_free(this_ptr: DirectedChannelTransactionParameters) { }
867 /// Used only if an object of this type is returned as a trait impl by a method
868 extern "C" fn DirectedChannelTransactionParameters_free_void(this_ptr: *mut c_void) {
869 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeDirectedChannelTransactionParameters); }
872 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
873 impl DirectedChannelTransactionParameters {
874 pub(crate) fn take_ptr(mut self) -> *mut nativeDirectedChannelTransactionParameters {
875 assert!(self.is_owned);
876 let ret = self.inner;
877 self.inner = std::ptr::null_mut();
881 /// Get the channel pubkeys for the broadcaster
884 pub extern "C" fn DirectedChannelTransactionParameters_broadcaster_pubkeys(this_arg: &DirectedChannelTransactionParameters) -> crate::ln::chan_utils::ChannelPublicKeys {
885 let mut ret = unsafe { &*this_arg.inner }.broadcaster_pubkeys();
886 crate::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false }
889 /// Get the channel pubkeys for the countersignatory
892 pub extern "C" fn DirectedChannelTransactionParameters_countersignatory_pubkeys(this_arg: &DirectedChannelTransactionParameters) -> crate::ln::chan_utils::ChannelPublicKeys {
893 let mut ret = unsafe { &*this_arg.inner }.countersignatory_pubkeys();
894 crate::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false }
897 /// Get the contest delay applicable to the transactions.
898 /// Note that the contest delay was selected by the countersignatory.
901 pub extern "C" fn DirectedChannelTransactionParameters_contest_delay(this_arg: &DirectedChannelTransactionParameters) -> u16 {
902 let mut ret = unsafe { &*this_arg.inner }.contest_delay();
906 /// Whether the channel is outbound from the broadcaster.
908 /// The boolean representing the side that initiated the channel is
909 /// an input to the commitment number obscure factor computation.
912 pub extern "C" fn DirectedChannelTransactionParameters_is_outbound(this_arg: &DirectedChannelTransactionParameters) -> bool {
913 let mut ret = unsafe { &*this_arg.inner }.is_outbound();
917 /// The funding outpoint
920 pub extern "C" fn DirectedChannelTransactionParameters_funding_outpoint(this_arg: &DirectedChannelTransactionParameters) -> crate::chain::transaction::OutPoint {
921 let mut ret = unsafe { &*this_arg.inner }.funding_outpoint();
922 crate::c_types::bitcoin_to_C_outpoint(ret)
926 use lightning::ln::chan_utils::HolderCommitmentTransaction as nativeHolderCommitmentTransactionImport;
927 type nativeHolderCommitmentTransaction = nativeHolderCommitmentTransactionImport;
929 /// Information needed to build and sign a holder's commitment transaction.
931 /// The transaction is only signed once we are ready to broadcast.
934 pub struct HolderCommitmentTransaction {
935 /// Nearly everywhere, inner must be non-null, however in places where
936 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
937 pub inner: *mut nativeHolderCommitmentTransaction,
941 impl Drop for HolderCommitmentTransaction {
943 if self.is_owned && !self.inner.is_null() {
944 let _ = unsafe { Box::from_raw(self.inner) };
949 pub extern "C" fn HolderCommitmentTransaction_free(this_ptr: HolderCommitmentTransaction) { }
951 /// Used only if an object of this type is returned as a trait impl by a method
952 extern "C" fn HolderCommitmentTransaction_free_void(this_ptr: *mut c_void) {
953 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeHolderCommitmentTransaction); }
956 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
957 impl HolderCommitmentTransaction {
958 pub(crate) fn take_ptr(mut self) -> *mut nativeHolderCommitmentTransaction {
959 assert!(self.is_owned);
960 let ret = self.inner;
961 self.inner = std::ptr::null_mut();
965 impl Clone for HolderCommitmentTransaction {
966 fn clone(&self) -> Self {
968 inner: Box::into_raw(Box::new(unsafe { &*self.inner }.clone())),
974 /// Used only if an object of this type is returned as a trait impl by a method
975 pub(crate) extern "C" fn HolderCommitmentTransaction_clone_void(this_ptr: *const c_void) -> *mut c_void {
976 Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeHolderCommitmentTransaction)).clone() })) as *mut c_void
979 pub extern "C" fn HolderCommitmentTransaction_clone(orig: &HolderCommitmentTransaction) -> HolderCommitmentTransaction {
980 HolderCommitmentTransaction { inner: Box::into_raw(Box::new(unsafe { &*orig.inner }.clone())), is_owned: true }
982 /// Our counterparty's signature for the transaction
984 pub extern "C" fn HolderCommitmentTransaction_get_counterparty_sig(this_ptr: &HolderCommitmentTransaction) -> crate::c_types::Signature {
985 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.counterparty_sig;
986 crate::c_types::Signature::from_rust(&(*inner_val))
988 /// Our counterparty's signature for the transaction
990 pub extern "C" fn HolderCommitmentTransaction_set_counterparty_sig(this_ptr: &mut HolderCommitmentTransaction, mut val: crate::c_types::Signature) {
991 unsafe { &mut *this_ptr.inner }.counterparty_sig = val.into_rust();
993 /// All non-dust counterparty HTLC signatures, in the order they appear in the transaction
995 pub extern "C" fn HolderCommitmentTransaction_set_counterparty_htlc_sigs(this_ptr: &mut HolderCommitmentTransaction, mut val: crate::c_types::derived::CVec_SignatureZ) {
996 let mut local_val = Vec::new(); for mut item in val.into_rust().drain(..) { local_val.push( { item.into_rust() }); };
997 unsafe { &mut *this_ptr.inner }.counterparty_htlc_sigs = local_val;
1000 pub extern "C" fn HolderCommitmentTransaction_write(obj: *const HolderCommitmentTransaction) -> crate::c_types::derived::CVec_u8Z {
1001 crate::c_types::serialize_obj(unsafe { &(*(*obj).inner) })
1004 pub(crate) extern "C" fn HolderCommitmentTransaction_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
1005 crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeHolderCommitmentTransaction) })
1008 pub extern "C" fn HolderCommitmentTransaction_read(ser: crate::c_types::u8slice) -> HolderCommitmentTransaction {
1009 if let Ok(res) = crate::c_types::deserialize_obj(ser) {
1010 HolderCommitmentTransaction { inner: Box::into_raw(Box::new(res)), is_owned: true }
1012 HolderCommitmentTransaction { inner: std::ptr::null_mut(), is_owned: true }
1015 /// Create a new holder transaction with the given counterparty signatures.
1016 /// The funding keys are used to figure out which signature should go first when building the transaction for broadcast.
1019 pub extern "C" fn HolderCommitmentTransaction_new(mut commitment_tx: crate::ln::chan_utils::CommitmentTransaction, mut counterparty_sig: crate::c_types::Signature, mut counterparty_htlc_sigs: crate::c_types::derived::CVec_SignatureZ, mut holder_funding_key: crate::c_types::PublicKey, mut counterparty_funding_key: crate::c_types::PublicKey) -> HolderCommitmentTransaction {
1020 let mut local_counterparty_htlc_sigs = Vec::new(); for mut item in counterparty_htlc_sigs.into_rust().drain(..) { local_counterparty_htlc_sigs.push( { item.into_rust() }); };
1021 let mut ret = lightning::ln::chan_utils::HolderCommitmentTransaction::new(*unsafe { Box::from_raw(commitment_tx.take_ptr()) }, counterparty_sig.into_rust(), local_counterparty_htlc_sigs, &holder_funding_key.into_rust(), &counterparty_funding_key.into_rust());
1022 HolderCommitmentTransaction { inner: Box::into_raw(Box::new(ret)), is_owned: true }
1026 use lightning::ln::chan_utils::BuiltCommitmentTransaction as nativeBuiltCommitmentTransactionImport;
1027 type nativeBuiltCommitmentTransaction = nativeBuiltCommitmentTransactionImport;
1029 /// A pre-built Bitcoin commitment transaction and its txid.
1032 pub struct BuiltCommitmentTransaction {
1033 /// Nearly everywhere, inner must be non-null, however in places where
1034 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
1035 pub inner: *mut nativeBuiltCommitmentTransaction,
1039 impl Drop for BuiltCommitmentTransaction {
1040 fn drop(&mut self) {
1041 if self.is_owned && !self.inner.is_null() {
1042 let _ = unsafe { Box::from_raw(self.inner) };
1047 pub extern "C" fn BuiltCommitmentTransaction_free(this_ptr: BuiltCommitmentTransaction) { }
1049 /// Used only if an object of this type is returned as a trait impl by a method
1050 extern "C" fn BuiltCommitmentTransaction_free_void(this_ptr: *mut c_void) {
1051 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeBuiltCommitmentTransaction); }
1054 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
1055 impl BuiltCommitmentTransaction {
1056 pub(crate) fn take_ptr(mut self) -> *mut nativeBuiltCommitmentTransaction {
1057 assert!(self.is_owned);
1058 let ret = self.inner;
1059 self.inner = std::ptr::null_mut();
1063 impl Clone for BuiltCommitmentTransaction {
1064 fn clone(&self) -> Self {
1066 inner: Box::into_raw(Box::new(unsafe { &*self.inner }.clone())),
1072 /// Used only if an object of this type is returned as a trait impl by a method
1073 pub(crate) extern "C" fn BuiltCommitmentTransaction_clone_void(this_ptr: *const c_void) -> *mut c_void {
1074 Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeBuiltCommitmentTransaction)).clone() })) as *mut c_void
1077 pub extern "C" fn BuiltCommitmentTransaction_clone(orig: &BuiltCommitmentTransaction) -> BuiltCommitmentTransaction {
1078 BuiltCommitmentTransaction { inner: Box::into_raw(Box::new(unsafe { &*orig.inner }.clone())), is_owned: true }
1080 /// The commitment transaction
1082 pub extern "C" fn BuiltCommitmentTransaction_get_transaction(this_ptr: &BuiltCommitmentTransaction) -> crate::c_types::Transaction {
1083 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.transaction;
1084 let mut local_inner_val = ::bitcoin::consensus::encode::serialize(inner_val);
1085 crate::c_types::Transaction::from_vec(local_inner_val)
1087 /// The commitment transaction
1089 pub extern "C" fn BuiltCommitmentTransaction_set_transaction(this_ptr: &mut BuiltCommitmentTransaction, mut val: crate::c_types::Transaction) {
1090 unsafe { &mut *this_ptr.inner }.transaction = val.into_bitcoin();
1092 /// The txid for the commitment transaction.
1094 /// This is provided as a performance optimization, instead of calling transaction.txid()
1097 pub extern "C" fn BuiltCommitmentTransaction_get_txid(this_ptr: &BuiltCommitmentTransaction) -> *const [u8; 32] {
1098 let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.txid;
1099 (*inner_val).as_inner()
1101 /// The txid for the commitment transaction.
1103 /// This is provided as a performance optimization, instead of calling transaction.txid()
1106 pub extern "C" fn BuiltCommitmentTransaction_set_txid(this_ptr: &mut BuiltCommitmentTransaction, mut val: crate::c_types::ThirtyTwoBytes) {
1107 unsafe { &mut *this_ptr.inner }.txid = ::bitcoin::hash_types::Txid::from_slice(&val.data[..]).unwrap();
1111 pub extern "C" fn BuiltCommitmentTransaction_new(mut transaction_arg: crate::c_types::Transaction, mut txid_arg: crate::c_types::ThirtyTwoBytes) -> BuiltCommitmentTransaction {
1112 BuiltCommitmentTransaction { inner: Box::into_raw(Box::new(nativeBuiltCommitmentTransaction {
1113 transaction: transaction_arg.into_bitcoin(),
1114 txid: ::bitcoin::hash_types::Txid::from_slice(&txid_arg.data[..]).unwrap(),
1115 })), is_owned: true }
1118 pub extern "C" fn BuiltCommitmentTransaction_write(obj: *const BuiltCommitmentTransaction) -> crate::c_types::derived::CVec_u8Z {
1119 crate::c_types::serialize_obj(unsafe { &(*(*obj).inner) })
1122 pub(crate) extern "C" fn BuiltCommitmentTransaction_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
1123 crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeBuiltCommitmentTransaction) })
1126 pub extern "C" fn BuiltCommitmentTransaction_read(ser: crate::c_types::u8slice) -> BuiltCommitmentTransaction {
1127 if let Ok(res) = crate::c_types::deserialize_obj(ser) {
1128 BuiltCommitmentTransaction { inner: Box::into_raw(Box::new(res)), is_owned: true }
1130 BuiltCommitmentTransaction { inner: std::ptr::null_mut(), is_owned: true }
1133 /// Get the SIGHASH_ALL sighash value of the transaction.
1135 /// This can be used to verify a signature.
1138 pub extern "C" fn BuiltCommitmentTransaction_get_sighash_all(this_arg: &BuiltCommitmentTransaction, mut funding_redeemscript: crate::c_types::u8slice, mut channel_value_satoshis: u64) -> crate::c_types::ThirtyTwoBytes {
1139 let mut ret = unsafe { &*this_arg.inner }.get_sighash_all(&::bitcoin::blockdata::script::Script::from(Vec::from(funding_redeemscript.to_slice())), channel_value_satoshis);
1140 crate::c_types::ThirtyTwoBytes { data: ret.as_ref().clone() }
1143 /// Sign a transaction, either because we are counter-signing the counterparty's transaction or
1144 /// because we are about to broadcast a holder transaction.
1147 pub extern "C" fn BuiltCommitmentTransaction_sign(this_arg: &BuiltCommitmentTransaction, funding_key: *const [u8; 32], mut funding_redeemscript: crate::c_types::u8slice, mut channel_value_satoshis: u64) -> crate::c_types::Signature {
1148 let mut ret = unsafe { &*this_arg.inner }.sign(&::bitcoin::secp256k1::key::SecretKey::from_slice(&unsafe { *funding_key}[..]).unwrap(), &::bitcoin::blockdata::script::Script::from(Vec::from(funding_redeemscript.to_slice())), channel_value_satoshis, &bitcoin::secp256k1::Secp256k1::new());
1149 crate::c_types::Signature::from_rust(&ret)
1153 use lightning::ln::chan_utils::CommitmentTransaction as nativeCommitmentTransactionImport;
1154 type nativeCommitmentTransaction = nativeCommitmentTransactionImport;
1156 /// This class tracks the per-transaction information needed to build a commitment transaction and to
1157 /// actually build it and sign. It is used for holder transactions that we sign only when needed
1158 /// and for transactions we sign for the counterparty.
1160 /// This class can be used inside a signer implementation to generate a signature given the relevant
1164 pub struct CommitmentTransaction {
1165 /// Nearly everywhere, inner must be non-null, however in places where
1166 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
1167 pub inner: *mut nativeCommitmentTransaction,
1171 impl Drop for CommitmentTransaction {
1172 fn drop(&mut self) {
1173 if self.is_owned && !self.inner.is_null() {
1174 let _ = unsafe { Box::from_raw(self.inner) };
1179 pub extern "C" fn CommitmentTransaction_free(this_ptr: CommitmentTransaction) { }
1181 /// Used only if an object of this type is returned as a trait impl by a method
1182 extern "C" fn CommitmentTransaction_free_void(this_ptr: *mut c_void) {
1183 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeCommitmentTransaction); }
1186 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
1187 impl CommitmentTransaction {
1188 pub(crate) fn take_ptr(mut self) -> *mut nativeCommitmentTransaction {
1189 assert!(self.is_owned);
1190 let ret = self.inner;
1191 self.inner = std::ptr::null_mut();
1195 impl Clone for CommitmentTransaction {
1196 fn clone(&self) -> Self {
1198 inner: Box::into_raw(Box::new(unsafe { &*self.inner }.clone())),
1204 /// Used only if an object of this type is returned as a trait impl by a method
1205 pub(crate) extern "C" fn CommitmentTransaction_clone_void(this_ptr: *const c_void) -> *mut c_void {
1206 Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeCommitmentTransaction)).clone() })) as *mut c_void
1209 pub extern "C" fn CommitmentTransaction_clone(orig: &CommitmentTransaction) -> CommitmentTransaction {
1210 CommitmentTransaction { inner: Box::into_raw(Box::new(unsafe { &*orig.inner }.clone())), is_owned: true }
1213 pub extern "C" fn CommitmentTransaction_write(obj: *const CommitmentTransaction) -> crate::c_types::derived::CVec_u8Z {
1214 crate::c_types::serialize_obj(unsafe { &(*(*obj).inner) })
1217 pub(crate) extern "C" fn CommitmentTransaction_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z {
1218 crate::c_types::serialize_obj(unsafe { &*(obj as *const nativeCommitmentTransaction) })
1221 pub extern "C" fn CommitmentTransaction_read(ser: crate::c_types::u8slice) -> CommitmentTransaction {
1222 if let Ok(res) = crate::c_types::deserialize_obj(ser) {
1223 CommitmentTransaction { inner: Box::into_raw(Box::new(res)), is_owned: true }
1225 CommitmentTransaction { inner: std::ptr::null_mut(), is_owned: true }
1228 /// The backwards-counting commitment number
1231 pub extern "C" fn CommitmentTransaction_commitment_number(this_arg: &CommitmentTransaction) -> u64 {
1232 let mut ret = unsafe { &*this_arg.inner }.commitment_number();
1236 /// The value to be sent to the broadcaster
1239 pub extern "C" fn CommitmentTransaction_to_broadcaster_value_sat(this_arg: &CommitmentTransaction) -> u64 {
1240 let mut ret = unsafe { &*this_arg.inner }.to_broadcaster_value_sat();
1244 /// The value to be sent to the counterparty
1247 pub extern "C" fn CommitmentTransaction_to_countersignatory_value_sat(this_arg: &CommitmentTransaction) -> u64 {
1248 let mut ret = unsafe { &*this_arg.inner }.to_countersignatory_value_sat();
1252 /// The feerate paid per 1000-weight-unit in this commitment transaction.
1255 pub extern "C" fn CommitmentTransaction_feerate_per_kw(this_arg: &CommitmentTransaction) -> u32 {
1256 let mut ret = unsafe { &*this_arg.inner }.feerate_per_kw();
1260 /// Trust our pre-built transaction and derived transaction creation public keys.
1262 /// Applies a wrapper which allows access to these fields.
1264 /// This should only be used if you fully trust the builder of this object. It should not
1265 ///\tbe used by an external signer - instead use the verify function.
1268 pub extern "C" fn CommitmentTransaction_trust(this_arg: &CommitmentTransaction) -> crate::ln::chan_utils::TrustedCommitmentTransaction {
1269 let mut ret = unsafe { &*this_arg.inner }.trust();
1270 crate::ln::chan_utils::TrustedCommitmentTransaction { inner: Box::into_raw(Box::new(ret)), is_owned: true }
1273 /// Verify our pre-built transaction and derived transaction creation public keys.
1275 /// Applies a wrapper which allows access to these fields.
1277 /// An external validating signer must call this method before signing
1278 /// or using the built transaction.
1281 pub extern "C" fn CommitmentTransaction_verify(this_arg: &CommitmentTransaction, channel_parameters: &crate::ln::chan_utils::DirectedChannelTransactionParameters, broadcaster_keys: &crate::ln::chan_utils::ChannelPublicKeys, countersignatory_keys: &crate::ln::chan_utils::ChannelPublicKeys) -> crate::c_types::derived::CResult_TrustedCommitmentTransactionNoneZ {
1282 let mut ret = unsafe { &*this_arg.inner }.verify(unsafe { &*channel_parameters.inner }, unsafe { &*broadcaster_keys.inner }, unsafe { &*countersignatory_keys.inner }, &bitcoin::secp256k1::Secp256k1::new());
1283 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::ln::chan_utils::TrustedCommitmentTransaction { inner: Box::into_raw(Box::new(o)), is_owned: true } }), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }) };
1288 use lightning::ln::chan_utils::TrustedCommitmentTransaction as nativeTrustedCommitmentTransactionImport;
1289 type nativeTrustedCommitmentTransaction = nativeTrustedCommitmentTransactionImport<'static>;
1291 /// A wrapper on CommitmentTransaction indicating that the derived fields (the built bitcoin
1292 /// transaction and the transaction creation keys) are trusted.
1294 /// See trust() and verify() functions on CommitmentTransaction.
1296 /// This structure implements Deref.
1299 pub struct TrustedCommitmentTransaction {
1300 /// Nearly everywhere, inner must be non-null, however in places where
1301 /// the Rust equivalent takes an Option, it may be set to null to indicate None.
1302 pub inner: *mut nativeTrustedCommitmentTransaction,
1306 impl Drop for TrustedCommitmentTransaction {
1307 fn drop(&mut self) {
1308 if self.is_owned && !self.inner.is_null() {
1309 let _ = unsafe { Box::from_raw(self.inner) };
1314 pub extern "C" fn TrustedCommitmentTransaction_free(this_ptr: TrustedCommitmentTransaction) { }
1316 /// Used only if an object of this type is returned as a trait impl by a method
1317 extern "C" fn TrustedCommitmentTransaction_free_void(this_ptr: *mut c_void) {
1318 unsafe { let _ = Box::from_raw(this_ptr as *mut nativeTrustedCommitmentTransaction); }
1321 /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy
1322 impl TrustedCommitmentTransaction {
1323 pub(crate) fn take_ptr(mut self) -> *mut nativeTrustedCommitmentTransaction {
1324 assert!(self.is_owned);
1325 let ret = self.inner;
1326 self.inner = std::ptr::null_mut();
1330 /// The transaction ID of the built Bitcoin transaction
1333 pub extern "C" fn TrustedCommitmentTransaction_txid(this_arg: &TrustedCommitmentTransaction) -> crate::c_types::ThirtyTwoBytes {
1334 let mut ret = unsafe { &*this_arg.inner }.txid();
1335 crate::c_types::ThirtyTwoBytes { data: ret.into_inner() }
1338 /// The pre-built Bitcoin commitment transaction
1341 pub extern "C" fn TrustedCommitmentTransaction_built_transaction(this_arg: &TrustedCommitmentTransaction) -> crate::ln::chan_utils::BuiltCommitmentTransaction {
1342 let mut ret = unsafe { &*this_arg.inner }.built_transaction();
1343 crate::ln::chan_utils::BuiltCommitmentTransaction { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false }
1346 /// The pre-calculated transaction creation public keys.
1349 pub extern "C" fn TrustedCommitmentTransaction_keys(this_arg: &TrustedCommitmentTransaction) -> crate::ln::chan_utils::TxCreationKeys {
1350 let mut ret = unsafe { &*this_arg.inner }.keys();
1351 crate::ln::chan_utils::TxCreationKeys { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false }
1354 /// Get a signature for each HTLC which was included in the commitment transaction (ie for
1355 /// which HTLCOutputInCommitment::transaction_output_index.is_some()).
1357 /// The returned Vec has one entry for each HTLC, and in the same order.
1360 pub extern "C" fn TrustedCommitmentTransaction_get_htlc_sigs(this_arg: &TrustedCommitmentTransaction, htlc_base_key: *const [u8; 32], channel_parameters: &crate::ln::chan_utils::DirectedChannelTransactionParameters) -> crate::c_types::derived::CResult_CVec_SignatureZNoneZ {
1361 let mut ret = unsafe { &*this_arg.inner }.get_htlc_sigs(&::bitcoin::secp256k1::key::SecretKey::from_slice(&unsafe { *htlc_base_key}[..]).unwrap(), unsafe { &*channel_parameters.inner }, &bitcoin::secp256k1::Secp256k1::new());
1362 let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { let mut local_ret_0 = Vec::new(); for item in o.drain(..) { local_ret_0.push( { crate::c_types::Signature::from_rust(&item) }); }; local_ret_0.into() }), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }) };
1366 /// Get the transaction number obscure factor
1368 pub extern "C" fn get_commitment_transaction_number_obscure_factor(mut broadcaster_payment_basepoint: crate::c_types::PublicKey, mut countersignatory_payment_basepoint: crate::c_types::PublicKey, mut outbound_from_broadcaster: bool) -> u64 {
1369 let mut ret = lightning::ln::chan_utils::get_commitment_transaction_number_obscure_factor(&broadcaster_payment_basepoint.into_rust(), &countersignatory_payment_basepoint.into_rust(), outbound_from_broadcaster);