X-Git-Url: http://git.bitcoin.ninja/index.cgi?p=ldk-c-bindings;a=blobdiff_plain;f=lightning-c-bindings%2Fsrc%2Flightning%2Fln%2Fchan_utils.rs;h=9874c87a264b8e2bd5b4655080f0dfe8ffbf2e5b;hp=fe989bdc782ba77d39c51ec9d8661df55c44bc92;hb=1eaf50a3d9f777b462ff1817678473567a00eb75;hpb=1ea51d14faf91619495778e82bca2e6fad0ae1ae diff --git a/lightning-c-bindings/src/lightning/ln/chan_utils.rs b/lightning-c-bindings/src/lightning/ln/chan_utils.rs index fe989bd..9874c87 100644 --- a/lightning-c-bindings/src/lightning/ln/chan_utils.rs +++ b/lightning-c-bindings/src/lightning/ln/chan_utils.rs @@ -9,9 +9,27 @@ //! Various utilities for building scripts and deriving keys related to channels. These are //! largely of interest for those implementing chain::keysinterface::Sign message signing by hand. -use std::ffi::c_void; +use alloc::str::FromStr; +use core::ffi::c_void; +use core::convert::Infallible; use bitcoin::hashes::Hash; use crate::c_types::*; +#[cfg(feature="no-std")] +use alloc::{vec::Vec, boxed::Box}; + +/// Gets the weight for an HTLC-Success transaction. +#[no_mangle] +pub extern "C" fn htlc_success_tx_weight(mut opt_anchors: bool) -> u64 { + let mut ret = lightning::ln::chan_utils::htlc_success_tx_weight(opt_anchors); + ret +} + +/// Gets the weight for an HTLC-Timeout transaction. +#[no_mangle] +pub extern "C" fn htlc_timeout_tx_weight(mut opt_anchors: bool) -> u64 { + let mut ret = lightning::ln::chan_utils::htlc_timeout_tx_weight(opt_anchors); + ret +} /// Build the commitment secret from the seed and the commitment number #[no_mangle] @@ -20,6 +38,13 @@ pub extern "C" fn build_commitment_secret(commitment_seed: *const [u8; 32], mut crate::c_types::ThirtyTwoBytes { data: ret } } +/// Build a closing transaction +#[no_mangle] +pub extern "C" fn build_closing_transaction(mut to_holder_value_sat: u64, mut to_counterparty_value_sat: u64, mut to_holder_script: crate::c_types::derived::CVec_u8Z, mut to_counterparty_script: crate::c_types::derived::CVec_u8Z, mut funding_outpoint: crate::lightning::chain::transaction::OutPoint) -> crate::c_types::Transaction { + let mut ret = lightning::ln::chan_utils::build_closing_transaction(to_holder_value_sat, to_counterparty_value_sat, ::bitcoin::blockdata::script::Script::from(to_holder_script.into_rust()), ::bitcoin::blockdata::script::Script::from(to_counterparty_script.into_rust()), crate::c_types::C_to_bitcoin_outpoint(funding_outpoint)); + crate::c_types::Transaction::from_bitcoin(&ret) +} + /// Derives a per-commitment-transaction private key (eg an htlc key or delayed_payment key) /// from the base secret and the per_commitment_point. /// @@ -81,7 +106,7 @@ pub extern "C" fn derive_public_revocation_key(mut per_commitment_point: crate:: use lightning::ln::chan_utils::TxCreationKeys as nativeTxCreationKeysImport; -type nativeTxCreationKeys = nativeTxCreationKeysImport; +pub(crate) type nativeTxCreationKeys = nativeTxCreationKeysImport; /// The set of public keys which are used in the creation of one commitment transaction. /// These are derived from the channel base keys and per-commitment data. @@ -112,7 +137,7 @@ pub struct TxCreationKeys { impl Drop for TxCreationKeys { fn drop(&mut self) { if self.is_owned && !<*mut nativeTxCreationKeys>::is_null(self.inner) { - let _ = unsafe { Box::from_raw(self.inner) }; + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; } } } @@ -121,95 +146,101 @@ impl Drop for TxCreationKeys { pub extern "C" fn TxCreationKeys_free(this_obj: TxCreationKeys) { } #[allow(unused)] /// Used only if an object of this type is returned as a trait impl by a method -extern "C" fn TxCreationKeys_free_void(this_ptr: *mut c_void) { +pub(crate) extern "C" fn TxCreationKeys_free_void(this_ptr: *mut c_void) { unsafe { let _ = Box::from_raw(this_ptr as *mut nativeTxCreationKeys); } } #[allow(unused)] -/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy impl TxCreationKeys { + pub(crate) fn get_native_ref(&self) -> &'static nativeTxCreationKeys { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeTxCreationKeys { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy pub(crate) fn take_inner(mut self) -> *mut nativeTxCreationKeys { assert!(self.is_owned); - let ret = self.inner; - self.inner = std::ptr::null_mut(); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); ret } } /// The broadcaster's per-commitment public key which was used to derive the other keys. #[no_mangle] pub extern "C" fn TxCreationKeys_get_per_commitment_point(this_ptr: &TxCreationKeys) -> crate::c_types::PublicKey { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.per_commitment_point; - crate::c_types::PublicKey::from_rust(&(*inner_val)) + let mut inner_val = &mut this_ptr.get_native_mut_ref().per_commitment_point; + crate::c_types::PublicKey::from_rust(&inner_val) } /// The broadcaster's per-commitment public key which was used to derive the other keys. #[no_mangle] pub extern "C" fn TxCreationKeys_set_per_commitment_point(this_ptr: &mut TxCreationKeys, mut val: crate::c_types::PublicKey) { - unsafe { &mut *this_ptr.inner }.per_commitment_point = val.into_rust(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.per_commitment_point = val.into_rust(); } /// The revocation key which is used to allow the broadcaster of the commitment /// transaction to provide their counterparty the ability to punish them if they broadcast /// an old state. #[no_mangle] pub extern "C" fn TxCreationKeys_get_revocation_key(this_ptr: &TxCreationKeys) -> crate::c_types::PublicKey { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.revocation_key; - crate::c_types::PublicKey::from_rust(&(*inner_val)) + let mut inner_val = &mut this_ptr.get_native_mut_ref().revocation_key; + crate::c_types::PublicKey::from_rust(&inner_val) } /// The revocation key which is used to allow the broadcaster of the commitment /// transaction to provide their counterparty the ability to punish them if they broadcast /// an old state. #[no_mangle] pub extern "C" fn TxCreationKeys_set_revocation_key(this_ptr: &mut TxCreationKeys, mut val: crate::c_types::PublicKey) { - unsafe { &mut *this_ptr.inner }.revocation_key = val.into_rust(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.revocation_key = val.into_rust(); } /// Broadcaster's HTLC Key #[no_mangle] pub extern "C" fn TxCreationKeys_get_broadcaster_htlc_key(this_ptr: &TxCreationKeys) -> crate::c_types::PublicKey { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.broadcaster_htlc_key; - crate::c_types::PublicKey::from_rust(&(*inner_val)) + let mut inner_val = &mut this_ptr.get_native_mut_ref().broadcaster_htlc_key; + crate::c_types::PublicKey::from_rust(&inner_val) } /// Broadcaster's HTLC Key #[no_mangle] pub extern "C" fn TxCreationKeys_set_broadcaster_htlc_key(this_ptr: &mut TxCreationKeys, mut val: crate::c_types::PublicKey) { - unsafe { &mut *this_ptr.inner }.broadcaster_htlc_key = val.into_rust(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.broadcaster_htlc_key = val.into_rust(); } /// Countersignatory's HTLC Key #[no_mangle] pub extern "C" fn TxCreationKeys_get_countersignatory_htlc_key(this_ptr: &TxCreationKeys) -> crate::c_types::PublicKey { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.countersignatory_htlc_key; - crate::c_types::PublicKey::from_rust(&(*inner_val)) + let mut inner_val = &mut this_ptr.get_native_mut_ref().countersignatory_htlc_key; + crate::c_types::PublicKey::from_rust(&inner_val) } /// Countersignatory's HTLC Key #[no_mangle] pub extern "C" fn TxCreationKeys_set_countersignatory_htlc_key(this_ptr: &mut TxCreationKeys, mut val: crate::c_types::PublicKey) { - unsafe { &mut *this_ptr.inner }.countersignatory_htlc_key = val.into_rust(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.countersignatory_htlc_key = val.into_rust(); } /// Broadcaster's Payment Key (which isn't allowed to be spent from for some delay) #[no_mangle] pub extern "C" fn TxCreationKeys_get_broadcaster_delayed_payment_key(this_ptr: &TxCreationKeys) -> crate::c_types::PublicKey { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.broadcaster_delayed_payment_key; - crate::c_types::PublicKey::from_rust(&(*inner_val)) + let mut inner_val = &mut this_ptr.get_native_mut_ref().broadcaster_delayed_payment_key; + crate::c_types::PublicKey::from_rust(&inner_val) } /// Broadcaster's Payment Key (which isn't allowed to be spent from for some delay) #[no_mangle] pub extern "C" fn TxCreationKeys_set_broadcaster_delayed_payment_key(this_ptr: &mut TxCreationKeys, mut val: crate::c_types::PublicKey) { - unsafe { &mut *this_ptr.inner }.broadcaster_delayed_payment_key = val.into_rust(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.broadcaster_delayed_payment_key = val.into_rust(); } /// Constructs a new TxCreationKeys given each field #[must_use] #[no_mangle] 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 { - TxCreationKeys { inner: Box::into_raw(Box::new(nativeTxCreationKeys { + TxCreationKeys { inner: ObjOps::heap_alloc(nativeTxCreationKeys { per_commitment_point: per_commitment_point_arg.into_rust(), revocation_key: revocation_key_arg.into_rust(), broadcaster_htlc_key: broadcaster_htlc_key_arg.into_rust(), countersignatory_htlc_key: countersignatory_htlc_key_arg.into_rust(), broadcaster_delayed_payment_key: broadcaster_delayed_payment_key_arg.into_rust(), - })), is_owned: true } + }), is_owned: true } } impl Clone for TxCreationKeys { fn clone(&self) -> Self { Self { - inner: if <*mut nativeTxCreationKeys>::is_null(self.inner) { std::ptr::null_mut() } else { - Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) }, + inner: if <*mut nativeTxCreationKeys>::is_null(self.inner) { core::ptr::null_mut() } else { + ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) }, is_owned: true, } } @@ -227,7 +258,7 @@ pub extern "C" fn TxCreationKeys_clone(orig: &TxCreationKeys) -> TxCreationKeys #[no_mangle] /// Serialize the TxCreationKeys object into a byte array which can be read by TxCreationKeys_read pub extern "C" fn TxCreationKeys_write(obj: &TxCreationKeys) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*unsafe { &*obj }.inner }) + crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] pub(crate) extern "C" fn TxCreationKeys_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { @@ -236,13 +267,13 @@ pub(crate) extern "C" fn TxCreationKeys_write_void(obj: *const c_void) -> crate: #[no_mangle] /// Read a TxCreationKeys from a byte array, created by TxCreationKeys_write pub extern "C" fn TxCreationKeys_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_TxCreationKeysDecodeErrorZ { - let res = crate::c_types::deserialize_obj(ser); - let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::TxCreationKeys { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() }; + let res: Result = crate::c_types::deserialize_obj(ser); + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::TxCreationKeys { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; local_res } use lightning::ln::chan_utils::ChannelPublicKeys as nativeChannelPublicKeysImport; -type nativeChannelPublicKeys = nativeChannelPublicKeysImport; +pub(crate) type nativeChannelPublicKeys = nativeChannelPublicKeysImport; /// One counterparty's public keys which do not change over the life of a channel. #[must_use] @@ -263,7 +294,7 @@ pub struct ChannelPublicKeys { impl Drop for ChannelPublicKeys { fn drop(&mut self) { if self.is_owned && !<*mut nativeChannelPublicKeys>::is_null(self.inner) { - let _ = unsafe { Box::from_raw(self.inner) }; + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; } } } @@ -272,16 +303,22 @@ impl Drop for ChannelPublicKeys { pub extern "C" fn ChannelPublicKeys_free(this_obj: ChannelPublicKeys) { } #[allow(unused)] /// Used only if an object of this type is returned as a trait impl by a method -extern "C" fn ChannelPublicKeys_free_void(this_ptr: *mut c_void) { +pub(crate) extern "C" fn ChannelPublicKeys_free_void(this_ptr: *mut c_void) { unsafe { let _ = Box::from_raw(this_ptr as *mut nativeChannelPublicKeys); } } #[allow(unused)] -/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy impl ChannelPublicKeys { + pub(crate) fn get_native_ref(&self) -> &'static nativeChannelPublicKeys { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeChannelPublicKeys { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy pub(crate) fn take_inner(mut self) -> *mut nativeChannelPublicKeys { assert!(self.is_owned); - let ret = self.inner; - self.inner = std::ptr::null_mut(); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); ret } } @@ -289,14 +326,14 @@ impl ChannelPublicKeys { /// on-chain channel lock-in 2-of-2 multisig output. #[no_mangle] pub extern "C" fn ChannelPublicKeys_get_funding_pubkey(this_ptr: &ChannelPublicKeys) -> crate::c_types::PublicKey { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.funding_pubkey; - crate::c_types::PublicKey::from_rust(&(*inner_val)) + let mut inner_val = &mut this_ptr.get_native_mut_ref().funding_pubkey; + crate::c_types::PublicKey::from_rust(&inner_val) } /// The public key which is used to sign all commitment transactions, as it appears in the /// on-chain channel lock-in 2-of-2 multisig output. #[no_mangle] pub extern "C" fn ChannelPublicKeys_set_funding_pubkey(this_ptr: &mut ChannelPublicKeys, mut val: crate::c_types::PublicKey) { - unsafe { &mut *this_ptr.inner }.funding_pubkey = val.into_rust(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.funding_pubkey = val.into_rust(); } /// The base point which is used (with derive_public_revocation_key) to derive per-commitment /// revocation keys. This is combined with the per-commitment-secret generated by the @@ -304,8 +341,8 @@ pub extern "C" fn ChannelPublicKeys_set_funding_pubkey(this_ptr: &mut ChannelPub /// states. #[no_mangle] pub extern "C" fn ChannelPublicKeys_get_revocation_basepoint(this_ptr: &ChannelPublicKeys) -> crate::c_types::PublicKey { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.revocation_basepoint; - crate::c_types::PublicKey::from_rust(&(*inner_val)) + let mut inner_val = &mut this_ptr.get_native_mut_ref().revocation_basepoint; + crate::c_types::PublicKey::from_rust(&inner_val) } /// The base point which is used (with derive_public_revocation_key) to derive per-commitment /// revocation keys. This is combined with the per-commitment-secret generated by the @@ -313,68 +350,68 @@ pub extern "C" fn ChannelPublicKeys_get_revocation_basepoint(this_ptr: &ChannelP /// states. #[no_mangle] pub extern "C" fn ChannelPublicKeys_set_revocation_basepoint(this_ptr: &mut ChannelPublicKeys, mut val: crate::c_types::PublicKey) { - unsafe { &mut *this_ptr.inner }.revocation_basepoint = val.into_rust(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.revocation_basepoint = val.into_rust(); } /// The public key on which the non-broadcaster (ie the countersignatory) receives an immediately /// spendable primary channel balance on the broadcaster's commitment transaction. This key is /// static across every commitment transaction. #[no_mangle] pub extern "C" fn ChannelPublicKeys_get_payment_point(this_ptr: &ChannelPublicKeys) -> crate::c_types::PublicKey { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.payment_point; - crate::c_types::PublicKey::from_rust(&(*inner_val)) + let mut inner_val = &mut this_ptr.get_native_mut_ref().payment_point; + crate::c_types::PublicKey::from_rust(&inner_val) } /// The public key on which the non-broadcaster (ie the countersignatory) receives an immediately /// spendable primary channel balance on the broadcaster's commitment transaction. This key is /// static across every commitment transaction. #[no_mangle] pub extern "C" fn ChannelPublicKeys_set_payment_point(this_ptr: &mut ChannelPublicKeys, mut val: crate::c_types::PublicKey) { - unsafe { &mut *this_ptr.inner }.payment_point = val.into_rust(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.payment_point = val.into_rust(); } /// The base point which is used (with derive_public_key) to derive a per-commitment payment /// public key which receives non-HTLC-encumbered funds which are only available for spending /// after some delay (or can be claimed via the revocation path). #[no_mangle] pub extern "C" fn ChannelPublicKeys_get_delayed_payment_basepoint(this_ptr: &ChannelPublicKeys) -> crate::c_types::PublicKey { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.delayed_payment_basepoint; - crate::c_types::PublicKey::from_rust(&(*inner_val)) + let mut inner_val = &mut this_ptr.get_native_mut_ref().delayed_payment_basepoint; + crate::c_types::PublicKey::from_rust(&inner_val) } /// The base point which is used (with derive_public_key) to derive a per-commitment payment /// public key which receives non-HTLC-encumbered funds which are only available for spending /// after some delay (or can be claimed via the revocation path). #[no_mangle] pub extern "C" fn ChannelPublicKeys_set_delayed_payment_basepoint(this_ptr: &mut ChannelPublicKeys, mut val: crate::c_types::PublicKey) { - unsafe { &mut *this_ptr.inner }.delayed_payment_basepoint = val.into_rust(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.delayed_payment_basepoint = val.into_rust(); } /// The base point which is used (with derive_public_key) to derive a per-commitment public key /// which is used to encumber HTLC-in-flight outputs. #[no_mangle] pub extern "C" fn ChannelPublicKeys_get_htlc_basepoint(this_ptr: &ChannelPublicKeys) -> crate::c_types::PublicKey { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.htlc_basepoint; - crate::c_types::PublicKey::from_rust(&(*inner_val)) + let mut inner_val = &mut this_ptr.get_native_mut_ref().htlc_basepoint; + crate::c_types::PublicKey::from_rust(&inner_val) } /// The base point which is used (with derive_public_key) to derive a per-commitment public key /// which is used to encumber HTLC-in-flight outputs. #[no_mangle] pub extern "C" fn ChannelPublicKeys_set_htlc_basepoint(this_ptr: &mut ChannelPublicKeys, mut val: crate::c_types::PublicKey) { - unsafe { &mut *this_ptr.inner }.htlc_basepoint = val.into_rust(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.htlc_basepoint = val.into_rust(); } /// Constructs a new ChannelPublicKeys given each field #[must_use] #[no_mangle] 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 { - ChannelPublicKeys { inner: Box::into_raw(Box::new(nativeChannelPublicKeys { + ChannelPublicKeys { inner: ObjOps::heap_alloc(nativeChannelPublicKeys { funding_pubkey: funding_pubkey_arg.into_rust(), revocation_basepoint: revocation_basepoint_arg.into_rust(), payment_point: payment_point_arg.into_rust(), delayed_payment_basepoint: delayed_payment_basepoint_arg.into_rust(), htlc_basepoint: htlc_basepoint_arg.into_rust(), - })), is_owned: true } + }), is_owned: true } } impl Clone for ChannelPublicKeys { fn clone(&self) -> Self { Self { - inner: if <*mut nativeChannelPublicKeys>::is_null(self.inner) { std::ptr::null_mut() } else { - Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) }, + inner: if <*mut nativeChannelPublicKeys>::is_null(self.inner) { core::ptr::null_mut() } else { + ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) }, is_owned: true, } } @@ -392,7 +429,7 @@ pub extern "C" fn ChannelPublicKeys_clone(orig: &ChannelPublicKeys) -> ChannelPu #[no_mangle] /// Serialize the ChannelPublicKeys object into a byte array which can be read by ChannelPublicKeys_read pub extern "C" fn ChannelPublicKeys_write(obj: &ChannelPublicKeys) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*unsafe { &*obj }.inner }) + crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] pub(crate) extern "C" fn ChannelPublicKeys_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { @@ -401,8 +438,8 @@ pub(crate) extern "C" fn ChannelPublicKeys_write_void(obj: *const c_void) -> cra #[no_mangle] /// Read a ChannelPublicKeys from a byte array, created by ChannelPublicKeys_write pub extern "C" fn ChannelPublicKeys_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_ChannelPublicKeysDecodeErrorZ { - let res = crate::c_types::deserialize_obj(ser); - let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() }; + let res: Result = crate::c_types::deserialize_obj(ser); + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; local_res } /// Create per-state keys from channel base points and the per-commitment point. @@ -411,7 +448,7 @@ pub extern "C" fn ChannelPublicKeys_read(ser: crate::c_types::u8slice) -> crate: #[no_mangle] 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_TxCreationKeysErrorZ { let mut ret = lightning::ln::chan_utils::TxCreationKeys::derive_new(secp256k1::SECP256K1, &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()); - let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::TxCreationKeys { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::c_types::Secp256k1Error::from_rust(e) }).into() }; + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::TxCreationKeys { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::c_types::Secp256k1Error::from_rust(e) }).into() }; local_ret } @@ -420,8 +457,8 @@ pub extern "C" fn TxCreationKeys_derive_new(mut per_commitment_point: crate::c_t #[must_use] #[no_mangle] pub extern "C" fn TxCreationKeys_from_channel_static_keys(mut per_commitment_point: crate::c_types::PublicKey, broadcaster_keys: &crate::lightning::ln::chan_utils::ChannelPublicKeys, countersignatory_keys: &crate::lightning::ln::chan_utils::ChannelPublicKeys) -> crate::c_types::derived::CResult_TxCreationKeysErrorZ { - 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 }, secp256k1::SECP256K1); - let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::TxCreationKeys { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::c_types::Secp256k1Error::from_rust(e) }).into() }; + let mut ret = lightning::ln::chan_utils::TxCreationKeys::from_channel_static_keys(&per_commitment_point.into_rust(), broadcaster_keys.get_native_ref(), countersignatory_keys.get_native_ref(), secp256k1::SECP256K1); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::TxCreationKeys { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::c_types::Secp256k1Error::from_rust(e) }).into() }; local_ret } @@ -440,7 +477,7 @@ pub extern "C" fn get_revokeable_redeemscript(mut revocation_key: crate::c_types use lightning::ln::chan_utils::HTLCOutputInCommitment as nativeHTLCOutputInCommitmentImport; -type nativeHTLCOutputInCommitment = nativeHTLCOutputInCommitmentImport; +pub(crate) type nativeHTLCOutputInCommitment = nativeHTLCOutputInCommitmentImport; /// Information about an HTLC as it appears in a commitment transaction #[must_use] @@ -461,7 +498,7 @@ pub struct HTLCOutputInCommitment { impl Drop for HTLCOutputInCommitment { fn drop(&mut self) { if self.is_owned && !<*mut nativeHTLCOutputInCommitment>::is_null(self.inner) { - let _ = unsafe { Box::from_raw(self.inner) }; + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; } } } @@ -470,16 +507,22 @@ impl Drop for HTLCOutputInCommitment { pub extern "C" fn HTLCOutputInCommitment_free(this_obj: HTLCOutputInCommitment) { } #[allow(unused)] /// Used only if an object of this type is returned as a trait impl by a method -extern "C" fn HTLCOutputInCommitment_free_void(this_ptr: *mut c_void) { +pub(crate) extern "C" fn HTLCOutputInCommitment_free_void(this_ptr: *mut c_void) { unsafe { let _ = Box::from_raw(this_ptr as *mut nativeHTLCOutputInCommitment); } } #[allow(unused)] -/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy impl HTLCOutputInCommitment { + pub(crate) fn get_native_ref(&self) -> &'static nativeHTLCOutputInCommitment { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeHTLCOutputInCommitment { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy pub(crate) fn take_inner(mut self) -> *mut nativeHTLCOutputInCommitment { assert!(self.is_owned); - let ret = self.inner; - self.inner = std::ptr::null_mut(); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); ret } } @@ -489,8 +532,8 @@ impl HTLCOutputInCommitment { /// the counterparty or our own. #[no_mangle] pub extern "C" fn HTLCOutputInCommitment_get_offered(this_ptr: &HTLCOutputInCommitment) -> bool { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.offered; - (*inner_val) + let mut inner_val = &mut this_ptr.get_native_mut_ref().offered; + *inner_val } /// Whether the HTLC was \"offered\" (ie outbound in relation to this commitment transaction). /// Note that this is not the same as whether it is ountbound *from us*. To determine that you @@ -498,50 +541,50 @@ pub extern "C" fn HTLCOutputInCommitment_get_offered(this_ptr: &HTLCOutputInComm /// the counterparty or our own. #[no_mangle] pub extern "C" fn HTLCOutputInCommitment_set_offered(this_ptr: &mut HTLCOutputInCommitment, mut val: bool) { - unsafe { &mut *this_ptr.inner }.offered = val; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.offered = val; } /// The value, in msat, of the HTLC. The value as it appears in the commitment transaction is /// this divided by 1000. #[no_mangle] pub extern "C" fn HTLCOutputInCommitment_get_amount_msat(this_ptr: &HTLCOutputInCommitment) -> u64 { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.amount_msat; - (*inner_val) + let mut inner_val = &mut this_ptr.get_native_mut_ref().amount_msat; + *inner_val } /// The value, in msat, of the HTLC. The value as it appears in the commitment transaction is /// this divided by 1000. #[no_mangle] pub extern "C" fn HTLCOutputInCommitment_set_amount_msat(this_ptr: &mut HTLCOutputInCommitment, mut val: u64) { - unsafe { &mut *this_ptr.inner }.amount_msat = val; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.amount_msat = val; } /// The CLTV lock-time at which this HTLC expires. #[no_mangle] pub extern "C" fn HTLCOutputInCommitment_get_cltv_expiry(this_ptr: &HTLCOutputInCommitment) -> u32 { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.cltv_expiry; - (*inner_val) + let mut inner_val = &mut this_ptr.get_native_mut_ref().cltv_expiry; + *inner_val } /// The CLTV lock-time at which this HTLC expires. #[no_mangle] pub extern "C" fn HTLCOutputInCommitment_set_cltv_expiry(this_ptr: &mut HTLCOutputInCommitment, mut val: u32) { - unsafe { &mut *this_ptr.inner }.cltv_expiry = val; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.cltv_expiry = val; } /// The hash of the preimage which unlocks this HTLC. #[no_mangle] pub extern "C" fn HTLCOutputInCommitment_get_payment_hash(this_ptr: &HTLCOutputInCommitment) -> *const [u8; 32] { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.payment_hash; - &(*inner_val).0 + let mut inner_val = &mut this_ptr.get_native_mut_ref().payment_hash; + &inner_val.0 } /// The hash of the preimage which unlocks this HTLC. #[no_mangle] pub extern "C" fn HTLCOutputInCommitment_set_payment_hash(this_ptr: &mut HTLCOutputInCommitment, mut val: crate::c_types::ThirtyTwoBytes) { - unsafe { &mut *this_ptr.inner }.payment_hash = ::lightning::ln::channelmanager::PaymentHash(val.data); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.payment_hash = ::lightning::ln::PaymentHash(val.data); } /// The position within the commitment transactions' outputs. This may be None if the value is /// below the dust limit (in which case no output appears in the commitment transaction and the /// value is spent to additional transaction fees). #[no_mangle] pub extern "C" fn HTLCOutputInCommitment_get_transaction_output_index(this_ptr: &HTLCOutputInCommitment) -> crate::c_types::derived::COption_u32Z { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.transaction_output_index; - let mut local_inner_val = if inner_val.is_none() { crate::c_types::derived::COption_u32Z::None } else { { crate::c_types::derived::COption_u32Z::Some(inner_val.unwrap()) } }; + let mut inner_val = &mut this_ptr.get_native_mut_ref().transaction_output_index; + let mut local_inner_val = if inner_val.is_none() { crate::c_types::derived::COption_u32Z::None } else { crate::c_types::derived::COption_u32Z::Some( { inner_val.unwrap() }) }; local_inner_val } /// The position within the commitment transactions' outputs. This may be None if the value is @@ -550,26 +593,26 @@ pub extern "C" fn HTLCOutputInCommitment_get_transaction_output_index(this_ptr: #[no_mangle] pub extern "C" fn HTLCOutputInCommitment_set_transaction_output_index(this_ptr: &mut HTLCOutputInCommitment, mut val: crate::c_types::derived::COption_u32Z) { let mut local_val = if val.is_some() { Some( { val.take() }) } else { None }; - unsafe { &mut *this_ptr.inner }.transaction_output_index = local_val; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.transaction_output_index = local_val; } /// Constructs a new HTLCOutputInCommitment given each field #[must_use] #[no_mangle] pub extern "C" fn HTLCOutputInCommitment_new(mut offered_arg: bool, mut amount_msat_arg: u64, mut cltv_expiry_arg: u32, mut payment_hash_arg: crate::c_types::ThirtyTwoBytes, mut transaction_output_index_arg: crate::c_types::derived::COption_u32Z) -> HTLCOutputInCommitment { let mut local_transaction_output_index_arg = if transaction_output_index_arg.is_some() { Some( { transaction_output_index_arg.take() }) } else { None }; - HTLCOutputInCommitment { inner: Box::into_raw(Box::new(nativeHTLCOutputInCommitment { + HTLCOutputInCommitment { inner: ObjOps::heap_alloc(nativeHTLCOutputInCommitment { offered: offered_arg, amount_msat: amount_msat_arg, cltv_expiry: cltv_expiry_arg, - payment_hash: ::lightning::ln::channelmanager::PaymentHash(payment_hash_arg.data), + payment_hash: ::lightning::ln::PaymentHash(payment_hash_arg.data), transaction_output_index: local_transaction_output_index_arg, - })), is_owned: true } + }), is_owned: true } } impl Clone for HTLCOutputInCommitment { fn clone(&self) -> Self { Self { - inner: if <*mut nativeHTLCOutputInCommitment>::is_null(self.inner) { std::ptr::null_mut() } else { - Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) }, + inner: if <*mut nativeHTLCOutputInCommitment>::is_null(self.inner) { core::ptr::null_mut() } else { + ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) }, is_owned: true, } } @@ -587,7 +630,7 @@ pub extern "C" fn HTLCOutputInCommitment_clone(orig: &HTLCOutputInCommitment) -> #[no_mangle] /// Serialize the HTLCOutputInCommitment object into a byte array which can be read by HTLCOutputInCommitment_read pub extern "C" fn HTLCOutputInCommitment_write(obj: &HTLCOutputInCommitment) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*unsafe { &*obj }.inner }) + crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] pub(crate) extern "C" fn HTLCOutputInCommitment_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { @@ -596,15 +639,15 @@ pub(crate) extern "C" fn HTLCOutputInCommitment_write_void(obj: *const c_void) - #[no_mangle] /// Read a HTLCOutputInCommitment from a byte array, created by HTLCOutputInCommitment_write pub extern "C" fn HTLCOutputInCommitment_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_HTLCOutputInCommitmentDecodeErrorZ { - let res = crate::c_types::deserialize_obj(ser); - let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::HTLCOutputInCommitment { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() }; + let res: Result = crate::c_types::deserialize_obj(ser); + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::HTLCOutputInCommitment { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; local_res } /// Gets the witness redeemscript for an HTLC output in a commitment transaction. Note that htlc /// does not need to have its previous_output_index filled. #[no_mangle] -pub extern "C" fn get_htlc_redeemscript(htlc: &crate::lightning::ln::chan_utils::HTLCOutputInCommitment, keys: &crate::lightning::ln::chan_utils::TxCreationKeys) -> crate::c_types::derived::CVec_u8Z { - let mut ret = lightning::ln::chan_utils::get_htlc_redeemscript(unsafe { &*htlc.inner }, unsafe { &*keys.inner }); +pub extern "C" fn get_htlc_redeemscript(htlc: &crate::lightning::ln::chan_utils::HTLCOutputInCommitment, mut opt_anchors: bool, keys: &crate::lightning::ln::chan_utils::TxCreationKeys) -> crate::c_types::derived::CVec_u8Z { + let mut ret = lightning::ln::chan_utils::get_htlc_redeemscript(htlc.get_native_ref(), opt_anchors, keys.get_native_ref()); ret.into_bytes().into() } @@ -616,17 +659,34 @@ pub extern "C" fn make_funding_redeemscript(mut broadcaster: crate::c_types::Pub ret.into_bytes().into() } -/// panics if htlc.transaction_output_index.is_none()! +/// Builds an unsigned HTLC-Success or HTLC-Timeout transaction from the given channel and HTLC +/// parameters. This is used by [`TrustedCommitmentTransaction::get_htlc_sigs`] to fetch the +/// transaction which needs signing, and can be used to construct an HTLC transaction which is +/// broadcastable given a counterparty HTLC signature. +/// +/// Panics if htlc.transaction_output_index.is_none() (as such HTLCs do not appear in the +/// commitment transaction). +#[no_mangle] +pub extern "C" fn build_htlc_transaction(commitment_txid: *const [u8; 32], mut feerate_per_kw: u32, mut contest_delay: u16, htlc: &crate::lightning::ln::chan_utils::HTLCOutputInCommitment, mut opt_anchors: bool, mut broadcaster_delayed_payment_key: crate::c_types::PublicKey, mut revocation_key: crate::c_types::PublicKey) -> crate::c_types::Transaction { + let mut ret = lightning::ln::chan_utils::build_htlc_transaction(&::bitcoin::hash_types::Txid::from_slice(&unsafe { &*commitment_txid }[..]).unwrap(), feerate_per_kw, contest_delay, htlc.get_native_ref(), opt_anchors, &broadcaster_delayed_payment_key.into_rust(), &revocation_key.into_rust()); + crate::c_types::Transaction::from_bitcoin(&ret) +} + +/// Gets the witnessScript for an anchor output from the funding public key. +/// The witness in the spending input must be: +/// +/// After 16 blocks of confirmation, an alternative satisfying witness could be: +/// <> +/// (empty vector required to satisfy compliance with MINIMALIF-standard rule) #[no_mangle] -pub extern "C" fn build_htlc_transaction(prev_hash: *const [u8; 32], mut feerate_per_kw: u32, mut contest_delay: u16, htlc: &crate::lightning::ln::chan_utils::HTLCOutputInCommitment, mut broadcaster_delayed_payment_key: crate::c_types::PublicKey, mut revocation_key: crate::c_types::PublicKey) -> crate::c_types::Transaction { - 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()); - let mut local_ret = ::bitcoin::consensus::encode::serialize(&ret); - crate::c_types::Transaction::from_vec(local_ret) +pub extern "C" fn get_anchor_redeemscript(mut funding_pubkey: crate::c_types::PublicKey) -> crate::c_types::derived::CVec_u8Z { + let mut ret = lightning::ln::chan_utils::get_anchor_redeemscript(&funding_pubkey.into_rust()); + ret.into_bytes().into() } use lightning::ln::chan_utils::ChannelTransactionParameters as nativeChannelTransactionParametersImport; -type nativeChannelTransactionParameters = nativeChannelTransactionParametersImport; +pub(crate) type nativeChannelTransactionParameters = nativeChannelTransactionParametersImport; /// Per-channel data used to build transactions in conjunction with the per-commitment data (CommitmentTransaction). /// The fields are organized by holder/counterparty. @@ -651,7 +711,7 @@ pub struct ChannelTransactionParameters { impl Drop for ChannelTransactionParameters { fn drop(&mut self) { if self.is_owned && !<*mut nativeChannelTransactionParameters>::is_null(self.inner) { - let _ = unsafe { Box::from_raw(self.inner) }; + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; } } } @@ -660,101 +720,130 @@ impl Drop for ChannelTransactionParameters { pub extern "C" fn ChannelTransactionParameters_free(this_obj: ChannelTransactionParameters) { } #[allow(unused)] /// Used only if an object of this type is returned as a trait impl by a method -extern "C" fn ChannelTransactionParameters_free_void(this_ptr: *mut c_void) { +pub(crate) extern "C" fn ChannelTransactionParameters_free_void(this_ptr: *mut c_void) { unsafe { let _ = Box::from_raw(this_ptr as *mut nativeChannelTransactionParameters); } } #[allow(unused)] -/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy impl ChannelTransactionParameters { + pub(crate) fn get_native_ref(&self) -> &'static nativeChannelTransactionParameters { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeChannelTransactionParameters { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy pub(crate) fn take_inner(mut self) -> *mut nativeChannelTransactionParameters { assert!(self.is_owned); - let ret = self.inner; - self.inner = std::ptr::null_mut(); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); ret } } /// Holder public keys #[no_mangle] pub extern "C" fn ChannelTransactionParameters_get_holder_pubkeys(this_ptr: &ChannelTransactionParameters) -> crate::lightning::ln::chan_utils::ChannelPublicKeys { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.holder_pubkeys; - crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ( (&((*inner_val)) as *const _) as *mut _) }, is_owned: false } + let mut inner_val = &mut this_ptr.get_native_mut_ref().holder_pubkeys; + crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ObjOps::nonnull_ptr_to_inner((inner_val as *const lightning::ln::chan_utils::ChannelPublicKeys<>) as *mut _) }, is_owned: false } } /// Holder public keys #[no_mangle] pub extern "C" fn ChannelTransactionParameters_set_holder_pubkeys(this_ptr: &mut ChannelTransactionParameters, mut val: crate::lightning::ln::chan_utils::ChannelPublicKeys) { - unsafe { &mut *this_ptr.inner }.holder_pubkeys = *unsafe { Box::from_raw(val.take_inner()) }; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.holder_pubkeys = *unsafe { Box::from_raw(val.take_inner()) }; } /// The contest delay selected by the holder, which applies to counterparty-broadcast transactions #[no_mangle] pub extern "C" fn ChannelTransactionParameters_get_holder_selected_contest_delay(this_ptr: &ChannelTransactionParameters) -> u16 { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.holder_selected_contest_delay; - (*inner_val) + let mut inner_val = &mut this_ptr.get_native_mut_ref().holder_selected_contest_delay; + *inner_val } /// The contest delay selected by the holder, which applies to counterparty-broadcast transactions #[no_mangle] pub extern "C" fn ChannelTransactionParameters_set_holder_selected_contest_delay(this_ptr: &mut ChannelTransactionParameters, mut val: u16) { - unsafe { &mut *this_ptr.inner }.holder_selected_contest_delay = val; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.holder_selected_contest_delay = val; } /// Whether the holder is the initiator of this channel. /// This is an input to the commitment number obscure factor computation. #[no_mangle] pub extern "C" fn ChannelTransactionParameters_get_is_outbound_from_holder(this_ptr: &ChannelTransactionParameters) -> bool { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.is_outbound_from_holder; - (*inner_val) + let mut inner_val = &mut this_ptr.get_native_mut_ref().is_outbound_from_holder; + *inner_val } /// Whether the holder is the initiator of this channel. /// This is an input to the commitment number obscure factor computation. #[no_mangle] pub extern "C" fn ChannelTransactionParameters_set_is_outbound_from_holder(this_ptr: &mut ChannelTransactionParameters, mut val: bool) { - unsafe { &mut *this_ptr.inner }.is_outbound_from_holder = val; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.is_outbound_from_holder = val; } /// The late-bound counterparty channel transaction parameters. /// These parameters are populated at the point in the protocol where the counterparty provides them. +/// +/// Note that the return value (or a relevant inner pointer) may be NULL or all-0s to represent None #[no_mangle] pub extern "C" fn ChannelTransactionParameters_get_counterparty_parameters(this_ptr: &ChannelTransactionParameters) -> crate::lightning::ln::chan_utils::CounterpartyChannelTransactionParameters { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.counterparty_parameters; - let mut local_inner_val = crate::lightning::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 }; + let mut inner_val = &mut this_ptr.get_native_mut_ref().counterparty_parameters; + let mut local_inner_val = crate::lightning::ln::chan_utils::CounterpartyChannelTransactionParameters { inner: unsafe { (if inner_val.is_none() { core::ptr::null() } else { ObjOps::nonnull_ptr_to_inner( { (inner_val.as_ref().unwrap()) }) } as *const lightning::ln::chan_utils::CounterpartyChannelTransactionParameters<>) as *mut _ }, is_owned: false }; local_inner_val } /// The late-bound counterparty channel transaction parameters. /// These parameters are populated at the point in the protocol where the counterparty provides them. +/// +/// Note that val (or a relevant inner pointer) may be NULL or all-0s to represent None #[no_mangle] pub extern "C" fn ChannelTransactionParameters_set_counterparty_parameters(this_ptr: &mut ChannelTransactionParameters, mut val: crate::lightning::ln::chan_utils::CounterpartyChannelTransactionParameters) { let mut local_val = if val.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(val.take_inner()) } }) }; - unsafe { &mut *this_ptr.inner }.counterparty_parameters = local_val; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.counterparty_parameters = local_val; } /// The late-bound funding outpoint +/// +/// Note that the return value (or a relevant inner pointer) may be NULL or all-0s to represent None #[no_mangle] pub extern "C" fn ChannelTransactionParameters_get_funding_outpoint(this_ptr: &ChannelTransactionParameters) -> crate::lightning::chain::transaction::OutPoint { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.funding_outpoint; - let mut local_inner_val = crate::lightning::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 }; + let mut inner_val = &mut this_ptr.get_native_mut_ref().funding_outpoint; + let mut local_inner_val = crate::lightning::chain::transaction::OutPoint { inner: unsafe { (if inner_val.is_none() { core::ptr::null() } else { ObjOps::nonnull_ptr_to_inner( { (inner_val.as_ref().unwrap()) }) } as *const lightning::chain::transaction::OutPoint<>) as *mut _ }, is_owned: false }; local_inner_val } /// The late-bound funding outpoint +/// +/// Note that val (or a relevant inner pointer) may be NULL or all-0s to represent None #[no_mangle] pub extern "C" fn ChannelTransactionParameters_set_funding_outpoint(this_ptr: &mut ChannelTransactionParameters, mut val: crate::lightning::chain::transaction::OutPoint) { let mut local_val = if val.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(val.take_inner()) } }) }; - unsafe { &mut *this_ptr.inner }.funding_outpoint = local_val; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.funding_outpoint = local_val; +} +/// Are anchors used for this channel. Boolean is serialization backwards-compatible +#[no_mangle] +pub extern "C" fn ChannelTransactionParameters_get_opt_anchors(this_ptr: &ChannelTransactionParameters) -> crate::c_types::derived::COption_NoneZ { + let mut inner_val = &mut this_ptr.get_native_mut_ref().opt_anchors; + let mut local_inner_val = if inner_val.is_none() { crate::c_types::derived::COption_NoneZ::None } else { crate::c_types::derived::COption_NoneZ::Some /* { () /**/ } */}; + local_inner_val +} +/// Are anchors used for this channel. Boolean is serialization backwards-compatible +#[no_mangle] +pub extern "C" fn ChannelTransactionParameters_set_opt_anchors(this_ptr: &mut ChannelTransactionParameters, mut val: crate::c_types::derived::COption_NoneZ) { + let mut local_val = if val.is_some() { Some( { () /*val.take()*/ }) } else { None }; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.opt_anchors = local_val; } /// Constructs a new ChannelTransactionParameters given each field #[must_use] #[no_mangle] -pub extern "C" fn ChannelTransactionParameters_new(mut holder_pubkeys_arg: crate::lightning::ln::chan_utils::ChannelPublicKeys, mut holder_selected_contest_delay_arg: u16, mut is_outbound_from_holder_arg: bool, mut counterparty_parameters_arg: crate::lightning::ln::chan_utils::CounterpartyChannelTransactionParameters, mut funding_outpoint_arg: crate::lightning::chain::transaction::OutPoint) -> ChannelTransactionParameters { +pub extern "C" fn ChannelTransactionParameters_new(mut holder_pubkeys_arg: crate::lightning::ln::chan_utils::ChannelPublicKeys, mut holder_selected_contest_delay_arg: u16, mut is_outbound_from_holder_arg: bool, mut counterparty_parameters_arg: crate::lightning::ln::chan_utils::CounterpartyChannelTransactionParameters, mut funding_outpoint_arg: crate::lightning::chain::transaction::OutPoint, mut opt_anchors_arg: crate::c_types::derived::COption_NoneZ) -> ChannelTransactionParameters { let mut local_counterparty_parameters_arg = if counterparty_parameters_arg.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(counterparty_parameters_arg.take_inner()) } }) }; let mut local_funding_outpoint_arg = if funding_outpoint_arg.inner.is_null() { None } else { Some( { *unsafe { Box::from_raw(funding_outpoint_arg.take_inner()) } }) }; - ChannelTransactionParameters { inner: Box::into_raw(Box::new(nativeChannelTransactionParameters { + let mut local_opt_anchors_arg = if opt_anchors_arg.is_some() { Some( { () /*opt_anchors_arg.take()*/ }) } else { None }; + ChannelTransactionParameters { inner: ObjOps::heap_alloc(nativeChannelTransactionParameters { holder_pubkeys: *unsafe { Box::from_raw(holder_pubkeys_arg.take_inner()) }, holder_selected_contest_delay: holder_selected_contest_delay_arg, is_outbound_from_holder: is_outbound_from_holder_arg, counterparty_parameters: local_counterparty_parameters_arg, funding_outpoint: local_funding_outpoint_arg, - })), is_owned: true } + opt_anchors: local_opt_anchors_arg, + }), is_owned: true } } impl Clone for ChannelTransactionParameters { fn clone(&self) -> Self { Self { - inner: if <*mut nativeChannelTransactionParameters>::is_null(self.inner) { std::ptr::null_mut() } else { - Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) }, + inner: if <*mut nativeChannelTransactionParameters>::is_null(self.inner) { core::ptr::null_mut() } else { + ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) }, is_owned: true, } } @@ -771,7 +860,7 @@ pub extern "C" fn ChannelTransactionParameters_clone(orig: &ChannelTransactionPa } use lightning::ln::chan_utils::CounterpartyChannelTransactionParameters as nativeCounterpartyChannelTransactionParametersImport; -type nativeCounterpartyChannelTransactionParameters = nativeCounterpartyChannelTransactionParametersImport; +pub(crate) type nativeCounterpartyChannelTransactionParameters = nativeCounterpartyChannelTransactionParametersImport; /// Late-bound per-channel counterparty data used to build transactions. #[must_use] @@ -792,7 +881,7 @@ pub struct CounterpartyChannelTransactionParameters { impl Drop for CounterpartyChannelTransactionParameters { fn drop(&mut self) { if self.is_owned && !<*mut nativeCounterpartyChannelTransactionParameters>::is_null(self.inner) { - let _ = unsafe { Box::from_raw(self.inner) }; + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; } } } @@ -801,55 +890,61 @@ impl Drop for CounterpartyChannelTransactionParameters { pub extern "C" fn CounterpartyChannelTransactionParameters_free(this_obj: CounterpartyChannelTransactionParameters) { } #[allow(unused)] /// Used only if an object of this type is returned as a trait impl by a method -extern "C" fn CounterpartyChannelTransactionParameters_free_void(this_ptr: *mut c_void) { +pub(crate) extern "C" fn CounterpartyChannelTransactionParameters_free_void(this_ptr: *mut c_void) { unsafe { let _ = Box::from_raw(this_ptr as *mut nativeCounterpartyChannelTransactionParameters); } } #[allow(unused)] -/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy impl CounterpartyChannelTransactionParameters { + pub(crate) fn get_native_ref(&self) -> &'static nativeCounterpartyChannelTransactionParameters { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeCounterpartyChannelTransactionParameters { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy pub(crate) fn take_inner(mut self) -> *mut nativeCounterpartyChannelTransactionParameters { assert!(self.is_owned); - let ret = self.inner; - self.inner = std::ptr::null_mut(); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); ret } } /// Counter-party public keys #[no_mangle] pub extern "C" fn CounterpartyChannelTransactionParameters_get_pubkeys(this_ptr: &CounterpartyChannelTransactionParameters) -> crate::lightning::ln::chan_utils::ChannelPublicKeys { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.pubkeys; - crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ( (&((*inner_val)) as *const _) as *mut _) }, is_owned: false } + let mut inner_val = &mut this_ptr.get_native_mut_ref().pubkeys; + crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ObjOps::nonnull_ptr_to_inner((inner_val as *const lightning::ln::chan_utils::ChannelPublicKeys<>) as *mut _) }, is_owned: false } } /// Counter-party public keys #[no_mangle] pub extern "C" fn CounterpartyChannelTransactionParameters_set_pubkeys(this_ptr: &mut CounterpartyChannelTransactionParameters, mut val: crate::lightning::ln::chan_utils::ChannelPublicKeys) { - unsafe { &mut *this_ptr.inner }.pubkeys = *unsafe { Box::from_raw(val.take_inner()) }; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.pubkeys = *unsafe { Box::from_raw(val.take_inner()) }; } /// The contest delay selected by the counterparty, which applies to holder-broadcast transactions #[no_mangle] pub extern "C" fn CounterpartyChannelTransactionParameters_get_selected_contest_delay(this_ptr: &CounterpartyChannelTransactionParameters) -> u16 { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.selected_contest_delay; - (*inner_val) + let mut inner_val = &mut this_ptr.get_native_mut_ref().selected_contest_delay; + *inner_val } /// The contest delay selected by the counterparty, which applies to holder-broadcast transactions #[no_mangle] pub extern "C" fn CounterpartyChannelTransactionParameters_set_selected_contest_delay(this_ptr: &mut CounterpartyChannelTransactionParameters, mut val: u16) { - unsafe { &mut *this_ptr.inner }.selected_contest_delay = val; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.selected_contest_delay = val; } /// Constructs a new CounterpartyChannelTransactionParameters given each field #[must_use] #[no_mangle] pub extern "C" fn CounterpartyChannelTransactionParameters_new(mut pubkeys_arg: crate::lightning::ln::chan_utils::ChannelPublicKeys, mut selected_contest_delay_arg: u16) -> CounterpartyChannelTransactionParameters { - CounterpartyChannelTransactionParameters { inner: Box::into_raw(Box::new(nativeCounterpartyChannelTransactionParameters { + CounterpartyChannelTransactionParameters { inner: ObjOps::heap_alloc(nativeCounterpartyChannelTransactionParameters { pubkeys: *unsafe { Box::from_raw(pubkeys_arg.take_inner()) }, selected_contest_delay: selected_contest_delay_arg, - })), is_owned: true } + }), is_owned: true } } impl Clone for CounterpartyChannelTransactionParameters { fn clone(&self) -> Self { Self { - inner: if <*mut nativeCounterpartyChannelTransactionParameters>::is_null(self.inner) { std::ptr::null_mut() } else { - Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) }, + inner: if <*mut nativeCounterpartyChannelTransactionParameters>::is_null(self.inner) { core::ptr::null_mut() } else { + ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) }, is_owned: true, } } @@ -868,7 +963,7 @@ pub extern "C" fn CounterpartyChannelTransactionParameters_clone(orig: &Counterp #[must_use] #[no_mangle] pub extern "C" fn ChannelTransactionParameters_is_populated(this_arg: &ChannelTransactionParameters) -> bool { - let mut ret = unsafe { &*this_arg.inner }.is_populated(); + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.is_populated(); ret } @@ -879,8 +974,8 @@ pub extern "C" fn ChannelTransactionParameters_is_populated(this_arg: &ChannelTr #[must_use] #[no_mangle] pub extern "C" fn ChannelTransactionParameters_as_holder_broadcastable(this_arg: &ChannelTransactionParameters) -> crate::lightning::ln::chan_utils::DirectedChannelTransactionParameters { - let mut ret = unsafe { &*this_arg.inner }.as_holder_broadcastable(); - crate::lightning::ln::chan_utils::DirectedChannelTransactionParameters { inner: Box::into_raw(Box::new(ret)), is_owned: true } + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.as_holder_broadcastable(); + crate::lightning::ln::chan_utils::DirectedChannelTransactionParameters { inner: ObjOps::heap_alloc(ret), is_owned: true } } /// Convert the holder/counterparty parameters to broadcaster/countersignatory-organized parameters, @@ -890,14 +985,14 @@ pub extern "C" fn ChannelTransactionParameters_as_holder_broadcastable(this_arg: #[must_use] #[no_mangle] pub extern "C" fn ChannelTransactionParameters_as_counterparty_broadcastable(this_arg: &ChannelTransactionParameters) -> crate::lightning::ln::chan_utils::DirectedChannelTransactionParameters { - let mut ret = unsafe { &*this_arg.inner }.as_counterparty_broadcastable(); - crate::lightning::ln::chan_utils::DirectedChannelTransactionParameters { inner: Box::into_raw(Box::new(ret)), is_owned: true } + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.as_counterparty_broadcastable(); + crate::lightning::ln::chan_utils::DirectedChannelTransactionParameters { inner: ObjOps::heap_alloc(ret), is_owned: true } } #[no_mangle] /// Serialize the CounterpartyChannelTransactionParameters object into a byte array which can be read by CounterpartyChannelTransactionParameters_read pub extern "C" fn CounterpartyChannelTransactionParameters_write(obj: &CounterpartyChannelTransactionParameters) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*unsafe { &*obj }.inner }) + crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] pub(crate) extern "C" fn CounterpartyChannelTransactionParameters_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { @@ -906,14 +1001,14 @@ pub(crate) extern "C" fn CounterpartyChannelTransactionParameters_write_void(obj #[no_mangle] /// Read a CounterpartyChannelTransactionParameters from a byte array, created by CounterpartyChannelTransactionParameters_write pub extern "C" fn CounterpartyChannelTransactionParameters_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_CounterpartyChannelTransactionParametersDecodeErrorZ { - let res = crate::c_types::deserialize_obj(ser); - let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::CounterpartyChannelTransactionParameters { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() }; + let res: Result = crate::c_types::deserialize_obj(ser); + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::CounterpartyChannelTransactionParameters { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; local_res } #[no_mangle] /// Serialize the ChannelTransactionParameters object into a byte array which can be read by ChannelTransactionParameters_read pub extern "C" fn ChannelTransactionParameters_write(obj: &ChannelTransactionParameters) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*unsafe { &*obj }.inner }) + crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] pub(crate) extern "C" fn ChannelTransactionParameters_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { @@ -922,13 +1017,13 @@ pub(crate) extern "C" fn ChannelTransactionParameters_write_void(obj: *const c_v #[no_mangle] /// Read a ChannelTransactionParameters from a byte array, created by ChannelTransactionParameters_write pub extern "C" fn ChannelTransactionParameters_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_ChannelTransactionParametersDecodeErrorZ { - let res = crate::c_types::deserialize_obj(ser); - let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::ChannelTransactionParameters { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() }; + let res: Result = crate::c_types::deserialize_obj(ser); + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::ChannelTransactionParameters { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; local_res } use lightning::ln::chan_utils::DirectedChannelTransactionParameters as nativeDirectedChannelTransactionParametersImport; -type nativeDirectedChannelTransactionParameters = nativeDirectedChannelTransactionParametersImport<'static>; +pub(crate) type nativeDirectedChannelTransactionParameters = nativeDirectedChannelTransactionParametersImport<'static>; /// Static channel fields used to build transactions given per-commitment fields, organized by /// broadcaster/countersignatory. @@ -953,7 +1048,7 @@ pub struct DirectedChannelTransactionParameters { impl Drop for DirectedChannelTransactionParameters { fn drop(&mut self) { if self.is_owned && !<*mut nativeDirectedChannelTransactionParameters>::is_null(self.inner) { - let _ = unsafe { Box::from_raw(self.inner) }; + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; } } } @@ -962,16 +1057,22 @@ impl Drop for DirectedChannelTransactionParameters { pub extern "C" fn DirectedChannelTransactionParameters_free(this_obj: DirectedChannelTransactionParameters) { } #[allow(unused)] /// Used only if an object of this type is returned as a trait impl by a method -extern "C" fn DirectedChannelTransactionParameters_free_void(this_ptr: *mut c_void) { +pub(crate) extern "C" fn DirectedChannelTransactionParameters_free_void(this_ptr: *mut c_void) { unsafe { let _ = Box::from_raw(this_ptr as *mut nativeDirectedChannelTransactionParameters); } } #[allow(unused)] -/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy impl DirectedChannelTransactionParameters { + pub(crate) fn get_native_ref(&self) -> &'static nativeDirectedChannelTransactionParameters { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeDirectedChannelTransactionParameters { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy pub(crate) fn take_inner(mut self) -> *mut nativeDirectedChannelTransactionParameters { assert!(self.is_owned); - let ret = self.inner; - self.inner = std::ptr::null_mut(); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); ret } } @@ -979,16 +1080,16 @@ impl DirectedChannelTransactionParameters { #[must_use] #[no_mangle] pub extern "C" fn DirectedChannelTransactionParameters_broadcaster_pubkeys(this_arg: &DirectedChannelTransactionParameters) -> crate::lightning::ln::chan_utils::ChannelPublicKeys { - let mut ret = unsafe { &*this_arg.inner }.broadcaster_pubkeys(); - crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false } + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.broadcaster_pubkeys(); + crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ObjOps::nonnull_ptr_to_inner((ret as *const lightning::ln::chan_utils::ChannelPublicKeys<>) as *mut _) }, is_owned: false } } /// Get the channel pubkeys for the countersignatory #[must_use] #[no_mangle] pub extern "C" fn DirectedChannelTransactionParameters_countersignatory_pubkeys(this_arg: &DirectedChannelTransactionParameters) -> crate::lightning::ln::chan_utils::ChannelPublicKeys { - let mut ret = unsafe { &*this_arg.inner }.countersignatory_pubkeys(); - crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false } + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.countersignatory_pubkeys(); + crate::lightning::ln::chan_utils::ChannelPublicKeys { inner: unsafe { ObjOps::nonnull_ptr_to_inner((ret as *const lightning::ln::chan_utils::ChannelPublicKeys<>) as *mut _) }, is_owned: false } } /// Get the contest delay applicable to the transactions. @@ -996,7 +1097,7 @@ pub extern "C" fn DirectedChannelTransactionParameters_countersignatory_pubkeys( #[must_use] #[no_mangle] pub extern "C" fn DirectedChannelTransactionParameters_contest_delay(this_arg: &DirectedChannelTransactionParameters) -> u16 { - let mut ret = unsafe { &*this_arg.inner }.contest_delay(); + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.contest_delay(); ret } @@ -1007,7 +1108,7 @@ pub extern "C" fn DirectedChannelTransactionParameters_contest_delay(this_arg: & #[must_use] #[no_mangle] pub extern "C" fn DirectedChannelTransactionParameters_is_outbound(this_arg: &DirectedChannelTransactionParameters) -> bool { - let mut ret = unsafe { &*this_arg.inner }.is_outbound(); + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.is_outbound(); ret } @@ -1015,13 +1116,21 @@ pub extern "C" fn DirectedChannelTransactionParameters_is_outbound(this_arg: &Di #[must_use] #[no_mangle] pub extern "C" fn DirectedChannelTransactionParameters_funding_outpoint(this_arg: &DirectedChannelTransactionParameters) -> crate::lightning::chain::transaction::OutPoint { - let mut ret = unsafe { &*this_arg.inner }.funding_outpoint(); + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.funding_outpoint(); crate::c_types::bitcoin_to_C_outpoint(ret) } +/// Whether to use anchors for this channel +#[must_use] +#[no_mangle] +pub extern "C" fn DirectedChannelTransactionParameters_opt_anchors(this_arg: &DirectedChannelTransactionParameters) -> bool { + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.opt_anchors(); + ret +} + use lightning::ln::chan_utils::HolderCommitmentTransaction as nativeHolderCommitmentTransactionImport; -type nativeHolderCommitmentTransaction = nativeHolderCommitmentTransactionImport; +pub(crate) type nativeHolderCommitmentTransaction = nativeHolderCommitmentTransactionImport; /// Information needed to build and sign a holder's commitment transaction. /// @@ -1044,7 +1153,7 @@ pub struct HolderCommitmentTransaction { impl Drop for HolderCommitmentTransaction { fn drop(&mut self) { if self.is_owned && !<*mut nativeHolderCommitmentTransaction>::is_null(self.inner) { - let _ = unsafe { Box::from_raw(self.inner) }; + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; } } } @@ -1053,41 +1162,47 @@ impl Drop for HolderCommitmentTransaction { pub extern "C" fn HolderCommitmentTransaction_free(this_obj: HolderCommitmentTransaction) { } #[allow(unused)] /// Used only if an object of this type is returned as a trait impl by a method -extern "C" fn HolderCommitmentTransaction_free_void(this_ptr: *mut c_void) { +pub(crate) extern "C" fn HolderCommitmentTransaction_free_void(this_ptr: *mut c_void) { unsafe { let _ = Box::from_raw(this_ptr as *mut nativeHolderCommitmentTransaction); } } #[allow(unused)] -/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy impl HolderCommitmentTransaction { + pub(crate) fn get_native_ref(&self) -> &'static nativeHolderCommitmentTransaction { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeHolderCommitmentTransaction { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy pub(crate) fn take_inner(mut self) -> *mut nativeHolderCommitmentTransaction { assert!(self.is_owned); - let ret = self.inner; - self.inner = std::ptr::null_mut(); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); ret } } /// Our counterparty's signature for the transaction #[no_mangle] pub extern "C" fn HolderCommitmentTransaction_get_counterparty_sig(this_ptr: &HolderCommitmentTransaction) -> crate::c_types::Signature { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.counterparty_sig; - crate::c_types::Signature::from_rust(&(*inner_val)) + let mut inner_val = &mut this_ptr.get_native_mut_ref().counterparty_sig; + crate::c_types::Signature::from_rust(&inner_val) } /// Our counterparty's signature for the transaction #[no_mangle] pub extern "C" fn HolderCommitmentTransaction_set_counterparty_sig(this_ptr: &mut HolderCommitmentTransaction, mut val: crate::c_types::Signature) { - unsafe { &mut *this_ptr.inner }.counterparty_sig = val.into_rust(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.counterparty_sig = val.into_rust(); } /// All non-dust counterparty HTLC signatures, in the order they appear in the transaction #[no_mangle] pub extern "C" fn HolderCommitmentTransaction_set_counterparty_htlc_sigs(this_ptr: &mut HolderCommitmentTransaction, mut val: crate::c_types::derived::CVec_SignatureZ) { let mut local_val = Vec::new(); for mut item in val.into_rust().drain(..) { local_val.push( { item.into_rust() }); }; - unsafe { &mut *this_ptr.inner }.counterparty_htlc_sigs = local_val; + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.counterparty_htlc_sigs = local_val; } impl Clone for HolderCommitmentTransaction { fn clone(&self) -> Self { Self { - inner: if <*mut nativeHolderCommitmentTransaction>::is_null(self.inner) { std::ptr::null_mut() } else { - Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) }, + inner: if <*mut nativeHolderCommitmentTransaction>::is_null(self.inner) { core::ptr::null_mut() } else { + ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) }, is_owned: true, } } @@ -1105,7 +1220,7 @@ pub extern "C" fn HolderCommitmentTransaction_clone(orig: &HolderCommitmentTrans #[no_mangle] /// Serialize the HolderCommitmentTransaction object into a byte array which can be read by HolderCommitmentTransaction_read pub extern "C" fn HolderCommitmentTransaction_write(obj: &HolderCommitmentTransaction) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*unsafe { &*obj }.inner }) + crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] pub(crate) extern "C" fn HolderCommitmentTransaction_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { @@ -1114,8 +1229,8 @@ pub(crate) extern "C" fn HolderCommitmentTransaction_write_void(obj: *const c_vo #[no_mangle] /// Read a HolderCommitmentTransaction from a byte array, created by HolderCommitmentTransaction_write pub extern "C" fn HolderCommitmentTransaction_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_HolderCommitmentTransactionDecodeErrorZ { - let res = crate::c_types::deserialize_obj(ser); - let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::HolderCommitmentTransaction { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() }; + let res: Result = crate::c_types::deserialize_obj(ser); + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::HolderCommitmentTransaction { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; local_res } /// Create a new holder transaction with the given counterparty signatures. @@ -1125,12 +1240,12 @@ pub extern "C" fn HolderCommitmentTransaction_read(ser: crate::c_types::u8slice) pub extern "C" fn HolderCommitmentTransaction_new(mut commitment_tx: crate::lightning::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 { 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() }); }; let mut ret = lightning::ln::chan_utils::HolderCommitmentTransaction::new(*unsafe { Box::from_raw(commitment_tx.take_inner()) }, counterparty_sig.into_rust(), local_counterparty_htlc_sigs, &holder_funding_key.into_rust(), &counterparty_funding_key.into_rust()); - HolderCommitmentTransaction { inner: Box::into_raw(Box::new(ret)), is_owned: true } + HolderCommitmentTransaction { inner: ObjOps::heap_alloc(ret), is_owned: true } } use lightning::ln::chan_utils::BuiltCommitmentTransaction as nativeBuiltCommitmentTransactionImport; -type nativeBuiltCommitmentTransaction = nativeBuiltCommitmentTransactionImport; +pub(crate) type nativeBuiltCommitmentTransaction = nativeBuiltCommitmentTransactionImport; /// A pre-built Bitcoin commitment transaction and its txid. #[must_use] @@ -1151,7 +1266,7 @@ pub struct BuiltCommitmentTransaction { impl Drop for BuiltCommitmentTransaction { fn drop(&mut self) { if self.is_owned && !<*mut nativeBuiltCommitmentTransaction>::is_null(self.inner) { - let _ = unsafe { Box::from_raw(self.inner) }; + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; } } } @@ -1160,30 +1275,35 @@ impl Drop for BuiltCommitmentTransaction { pub extern "C" fn BuiltCommitmentTransaction_free(this_obj: BuiltCommitmentTransaction) { } #[allow(unused)] /// Used only if an object of this type is returned as a trait impl by a method -extern "C" fn BuiltCommitmentTransaction_free_void(this_ptr: *mut c_void) { +pub(crate) extern "C" fn BuiltCommitmentTransaction_free_void(this_ptr: *mut c_void) { unsafe { let _ = Box::from_raw(this_ptr as *mut nativeBuiltCommitmentTransaction); } } #[allow(unused)] -/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy impl BuiltCommitmentTransaction { + pub(crate) fn get_native_ref(&self) -> &'static nativeBuiltCommitmentTransaction { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeBuiltCommitmentTransaction { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy pub(crate) fn take_inner(mut self) -> *mut nativeBuiltCommitmentTransaction { assert!(self.is_owned); - let ret = self.inner; - self.inner = std::ptr::null_mut(); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); ret } } /// The commitment transaction #[no_mangle] pub extern "C" fn BuiltCommitmentTransaction_get_transaction(this_ptr: &BuiltCommitmentTransaction) -> crate::c_types::Transaction { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.transaction; - let mut local_inner_val = ::bitcoin::consensus::encode::serialize(inner_val); - crate::c_types::Transaction::from_vec(local_inner_val) + let mut inner_val = &mut this_ptr.get_native_mut_ref().transaction; + crate::c_types::Transaction::from_bitcoin(inner_val) } /// The commitment transaction #[no_mangle] pub extern "C" fn BuiltCommitmentTransaction_set_transaction(this_ptr: &mut BuiltCommitmentTransaction, mut val: crate::c_types::Transaction) { - unsafe { &mut *this_ptr.inner }.transaction = val.into_bitcoin(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.transaction = val.into_bitcoin(); } /// The txid for the commitment transaction. /// @@ -1191,8 +1311,8 @@ pub extern "C" fn BuiltCommitmentTransaction_set_transaction(this_ptr: &mut Buil /// multiple times. #[no_mangle] pub extern "C" fn BuiltCommitmentTransaction_get_txid(this_ptr: &BuiltCommitmentTransaction) -> *const [u8; 32] { - let mut inner_val = &mut unsafe { &mut *this_ptr.inner }.txid; - (*inner_val).as_inner() + let mut inner_val = &mut this_ptr.get_native_mut_ref().txid; + inner_val.as_inner() } /// The txid for the commitment transaction. /// @@ -1200,22 +1320,22 @@ pub extern "C" fn BuiltCommitmentTransaction_get_txid(this_ptr: &BuiltCommitment /// multiple times. #[no_mangle] pub extern "C" fn BuiltCommitmentTransaction_set_txid(this_ptr: &mut BuiltCommitmentTransaction, mut val: crate::c_types::ThirtyTwoBytes) { - unsafe { &mut *this_ptr.inner }.txid = ::bitcoin::hash_types::Txid::from_slice(&val.data[..]).unwrap(); + unsafe { &mut *ObjOps::untweak_ptr(this_ptr.inner) }.txid = ::bitcoin::hash_types::Txid::from_slice(&val.data[..]).unwrap(); } /// Constructs a new BuiltCommitmentTransaction given each field #[must_use] #[no_mangle] pub extern "C" fn BuiltCommitmentTransaction_new(mut transaction_arg: crate::c_types::Transaction, mut txid_arg: crate::c_types::ThirtyTwoBytes) -> BuiltCommitmentTransaction { - BuiltCommitmentTransaction { inner: Box::into_raw(Box::new(nativeBuiltCommitmentTransaction { + BuiltCommitmentTransaction { inner: ObjOps::heap_alloc(nativeBuiltCommitmentTransaction { transaction: transaction_arg.into_bitcoin(), txid: ::bitcoin::hash_types::Txid::from_slice(&txid_arg.data[..]).unwrap(), - })), is_owned: true } + }), is_owned: true } } impl Clone for BuiltCommitmentTransaction { fn clone(&self) -> Self { Self { - inner: if <*mut nativeBuiltCommitmentTransaction>::is_null(self.inner) { std::ptr::null_mut() } else { - Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) }, + inner: if <*mut nativeBuiltCommitmentTransaction>::is_null(self.inner) { core::ptr::null_mut() } else { + ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) }, is_owned: true, } } @@ -1233,7 +1353,7 @@ pub extern "C" fn BuiltCommitmentTransaction_clone(orig: &BuiltCommitmentTransac #[no_mangle] /// Serialize the BuiltCommitmentTransaction object into a byte array which can be read by BuiltCommitmentTransaction_read pub extern "C" fn BuiltCommitmentTransaction_write(obj: &BuiltCommitmentTransaction) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*unsafe { &*obj }.inner }) + crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] pub(crate) extern "C" fn BuiltCommitmentTransaction_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { @@ -1242,8 +1362,8 @@ pub(crate) extern "C" fn BuiltCommitmentTransaction_write_void(obj: *const c_voi #[no_mangle] /// Read a BuiltCommitmentTransaction from a byte array, created by BuiltCommitmentTransaction_write pub extern "C" fn BuiltCommitmentTransaction_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_BuiltCommitmentTransactionDecodeErrorZ { - let res = crate::c_types::deserialize_obj(ser); - let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::BuiltCommitmentTransaction { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() }; + let res: Result = crate::c_types::deserialize_obj(ser); + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::BuiltCommitmentTransaction { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; local_res } /// Get the SIGHASH_ALL sighash value of the transaction. @@ -1252,7 +1372,7 @@ pub extern "C" fn BuiltCommitmentTransaction_read(ser: crate::c_types::u8slice) #[must_use] #[no_mangle] 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 { - let mut ret = unsafe { &*this_arg.inner }.get_sighash_all(&::bitcoin::blockdata::script::Script::from(Vec::from(funding_redeemscript.to_slice())), channel_value_satoshis); + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_sighash_all(&::bitcoin::blockdata::script::Script::from(Vec::from(funding_redeemscript.to_slice())), channel_value_satoshis); crate::c_types::ThirtyTwoBytes { data: ret.as_ref().clone() } } @@ -1261,15 +1381,249 @@ pub extern "C" fn BuiltCommitmentTransaction_get_sighash_all(this_arg: &BuiltCom #[must_use] #[no_mangle] 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 { - 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, secp256k1::SECP256K1); + let mut ret = unsafe { &*ObjOps::untweak_ptr(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, secp256k1::SECP256K1); + crate::c_types::Signature::from_rust(&ret) +} + + +use lightning::ln::chan_utils::ClosingTransaction as nativeClosingTransactionImport; +pub(crate) type nativeClosingTransaction = nativeClosingTransactionImport; + +/// This class tracks the per-transaction information needed to build a closing transaction and will +/// actually build it and sign. +/// +/// This class can be used inside a signer implementation to generate a signature given the relevant +/// secret key. +#[must_use] +#[repr(C)] +pub struct ClosingTransaction { + /// A pointer to the opaque Rust object. + + /// Nearly everywhere, inner must be non-null, however in places where + /// the Rust equivalent takes an Option, it may be set to null to indicate None. + pub inner: *mut nativeClosingTransaction, + /// Indicates that this is the only struct which contains the same pointer. + + /// Rust functions which take ownership of an object provided via an argument require + /// this to be true and invalidate the object pointed to by inner. + pub is_owned: bool, +} + +impl Drop for ClosingTransaction { + fn drop(&mut self) { + if self.is_owned && !<*mut nativeClosingTransaction>::is_null(self.inner) { + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; + } + } +} +/// Frees any resources used by the ClosingTransaction, if is_owned is set and inner is non-NULL. +#[no_mangle] +pub extern "C" fn ClosingTransaction_free(this_obj: ClosingTransaction) { } +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +pub(crate) extern "C" fn ClosingTransaction_free_void(this_ptr: *mut c_void) { + unsafe { let _ = Box::from_raw(this_ptr as *mut nativeClosingTransaction); } +} +#[allow(unused)] +impl ClosingTransaction { + pub(crate) fn get_native_ref(&self) -> &'static nativeClosingTransaction { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeClosingTransaction { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy + pub(crate) fn take_inner(mut self) -> *mut nativeClosingTransaction { + assert!(self.is_owned); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); + ret + } +} +impl Clone for ClosingTransaction { + fn clone(&self) -> Self { + Self { + inner: if <*mut nativeClosingTransaction>::is_null(self.inner) { core::ptr::null_mut() } else { + ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) }, + is_owned: true, + } + } +} +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +pub(crate) extern "C" fn ClosingTransaction_clone_void(this_ptr: *const c_void) -> *mut c_void { + Box::into_raw(Box::new(unsafe { (*(this_ptr as *mut nativeClosingTransaction)).clone() })) as *mut c_void +} +#[no_mangle] +/// Creates a copy of the ClosingTransaction +pub extern "C" fn ClosingTransaction_clone(orig: &ClosingTransaction) -> ClosingTransaction { + orig.clone() +} +/// Checks if two ClosingTransactions contain equal inner contents. +#[no_mangle] +pub extern "C" fn ClosingTransaction_hash(o: &ClosingTransaction) -> u64 { + if o.inner.is_null() { return 0; } + // Note that we'd love to use alloc::collections::hash_map::DefaultHasher but it's not in core + #[allow(deprecated)] + let mut hasher = core::hash::SipHasher::new(); + core::hash::Hash::hash(o.get_native_ref(), &mut hasher); + core::hash::Hasher::finish(&hasher) +} +/// Construct an object of the class +#[must_use] +#[no_mangle] +pub extern "C" fn ClosingTransaction_new(mut to_holder_value_sat: u64, mut to_counterparty_value_sat: u64, mut to_holder_script: crate::c_types::derived::CVec_u8Z, mut to_counterparty_script: crate::c_types::derived::CVec_u8Z, mut funding_outpoint: crate::lightning::chain::transaction::OutPoint) -> ClosingTransaction { + let mut ret = lightning::ln::chan_utils::ClosingTransaction::new(to_holder_value_sat, to_counterparty_value_sat, ::bitcoin::blockdata::script::Script::from(to_holder_script.into_rust()), ::bitcoin::blockdata::script::Script::from(to_counterparty_script.into_rust()), crate::c_types::C_to_bitcoin_outpoint(funding_outpoint)); + ClosingTransaction { inner: ObjOps::heap_alloc(ret), is_owned: true } +} + +/// Trust our pre-built transaction. +/// +/// Applies a wrapper which allows access to the transaction. +/// +/// This should only be used if you fully trust the builder of this object. It should not +/// be used by an external signer - instead use the verify function. +#[must_use] +#[no_mangle] +pub extern "C" fn ClosingTransaction_trust(this_arg: &ClosingTransaction) -> crate::lightning::ln::chan_utils::TrustedClosingTransaction { + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.trust(); + crate::lightning::ln::chan_utils::TrustedClosingTransaction { inner: ObjOps::heap_alloc(ret), is_owned: true } +} + +/// Verify our pre-built transaction. +/// +/// Applies a wrapper which allows access to the transaction. +/// +/// An external validating signer must call this method before signing +/// or using the built transaction. +#[must_use] +#[no_mangle] +pub extern "C" fn ClosingTransaction_verify(this_arg: &ClosingTransaction, mut funding_outpoint: crate::lightning::chain::transaction::OutPoint) -> crate::c_types::derived::CResult_TrustedClosingTransactionNoneZ { + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.verify(crate::c_types::C_to_bitcoin_outpoint(funding_outpoint)); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::TrustedClosingTransaction { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { () /*e*/ }).into() }; + local_ret +} + +/// The value to be sent to the holder, or zero if the output will be omitted +#[must_use] +#[no_mangle] +pub extern "C" fn ClosingTransaction_to_holder_value_sat(this_arg: &ClosingTransaction) -> u64 { + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.to_holder_value_sat(); + ret +} + +/// The value to be sent to the counterparty, or zero if the output will be omitted +#[must_use] +#[no_mangle] +pub extern "C" fn ClosingTransaction_to_counterparty_value_sat(this_arg: &ClosingTransaction) -> u64 { + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.to_counterparty_value_sat(); + ret +} + +/// The destination of the holder's output +#[must_use] +#[no_mangle] +pub extern "C" fn ClosingTransaction_to_holder_script(this_arg: &ClosingTransaction) -> crate::c_types::u8slice { + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.to_holder_script(); + crate::c_types::u8slice::from_slice(&ret[..]) +} + +/// The destination of the counterparty's output +#[must_use] +#[no_mangle] +pub extern "C" fn ClosingTransaction_to_counterparty_script(this_arg: &ClosingTransaction) -> crate::c_types::u8slice { + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.to_counterparty_script(); + crate::c_types::u8slice::from_slice(&ret[..]) +} + + +use lightning::ln::chan_utils::TrustedClosingTransaction as nativeTrustedClosingTransactionImport; +pub(crate) type nativeTrustedClosingTransaction = nativeTrustedClosingTransactionImport<'static>; + +/// A wrapper on ClosingTransaction indicating that the built bitcoin +/// transaction is trusted. +/// +/// See trust() and verify() functions on CommitmentTransaction. +/// +/// This structure implements Deref. +#[must_use] +#[repr(C)] +pub struct TrustedClosingTransaction { + /// A pointer to the opaque Rust object. + + /// Nearly everywhere, inner must be non-null, however in places where + /// the Rust equivalent takes an Option, it may be set to null to indicate None. + pub inner: *mut nativeTrustedClosingTransaction, + /// Indicates that this is the only struct which contains the same pointer. + + /// Rust functions which take ownership of an object provided via an argument require + /// this to be true and invalidate the object pointed to by inner. + pub is_owned: bool, +} + +impl Drop for TrustedClosingTransaction { + fn drop(&mut self) { + if self.is_owned && !<*mut nativeTrustedClosingTransaction>::is_null(self.inner) { + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; + } + } +} +/// Frees any resources used by the TrustedClosingTransaction, if is_owned is set and inner is non-NULL. +#[no_mangle] +pub extern "C" fn TrustedClosingTransaction_free(this_obj: TrustedClosingTransaction) { } +#[allow(unused)] +/// Used only if an object of this type is returned as a trait impl by a method +pub(crate) extern "C" fn TrustedClosingTransaction_free_void(this_ptr: *mut c_void) { + unsafe { let _ = Box::from_raw(this_ptr as *mut nativeTrustedClosingTransaction); } +} +#[allow(unused)] +impl TrustedClosingTransaction { + pub(crate) fn get_native_ref(&self) -> &'static nativeTrustedClosingTransaction { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeTrustedClosingTransaction { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy + pub(crate) fn take_inner(mut self) -> *mut nativeTrustedClosingTransaction { + assert!(self.is_owned); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); + ret + } +} +/// The pre-built Bitcoin commitment transaction +#[must_use] +#[no_mangle] +pub extern "C" fn TrustedClosingTransaction_built_transaction(this_arg: &TrustedClosingTransaction) -> crate::c_types::Transaction { + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.built_transaction(); + crate::c_types::Transaction::from_bitcoin(ret) +} + +/// Get the SIGHASH_ALL sighash value of the transaction. +/// +/// This can be used to verify a signature. +#[must_use] +#[no_mangle] +pub extern "C" fn TrustedClosingTransaction_get_sighash_all(this_arg: &TrustedClosingTransaction, mut funding_redeemscript: crate::c_types::u8slice, mut channel_value_satoshis: u64) -> crate::c_types::ThirtyTwoBytes { + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_sighash_all(&::bitcoin::blockdata::script::Script::from(Vec::from(funding_redeemscript.to_slice())), channel_value_satoshis); + crate::c_types::ThirtyTwoBytes { data: ret.as_ref().clone() } +} + +/// Sign a transaction, either because we are counter-signing the counterparty's transaction or +/// because we are about to broadcast a holder transaction. +#[must_use] +#[no_mangle] +pub extern "C" fn TrustedClosingTransaction_sign(this_arg: &TrustedClosingTransaction, funding_key: *const [u8; 32], mut funding_redeemscript: crate::c_types::u8slice, mut channel_value_satoshis: u64) -> crate::c_types::Signature { + let mut ret = unsafe { &*ObjOps::untweak_ptr(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, secp256k1::SECP256K1); crate::c_types::Signature::from_rust(&ret) } use lightning::ln::chan_utils::CommitmentTransaction as nativeCommitmentTransactionImport; -type nativeCommitmentTransaction = nativeCommitmentTransactionImport; +pub(crate) type nativeCommitmentTransaction = nativeCommitmentTransactionImport; -/// This class tracks the per-transaction information needed to build a commitment transaction and to +/// This class tracks the per-transaction information needed to build a commitment transaction and will /// actually build it and sign. It is used for holder transactions that we sign only when needed /// and for transactions we sign for the counterparty. /// @@ -1293,7 +1647,7 @@ pub struct CommitmentTransaction { impl Drop for CommitmentTransaction { fn drop(&mut self) { if self.is_owned && !<*mut nativeCommitmentTransaction>::is_null(self.inner) { - let _ = unsafe { Box::from_raw(self.inner) }; + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; } } } @@ -1302,24 +1656,30 @@ impl Drop for CommitmentTransaction { pub extern "C" fn CommitmentTransaction_free(this_obj: CommitmentTransaction) { } #[allow(unused)] /// Used only if an object of this type is returned as a trait impl by a method -extern "C" fn CommitmentTransaction_free_void(this_ptr: *mut c_void) { +pub(crate) extern "C" fn CommitmentTransaction_free_void(this_ptr: *mut c_void) { unsafe { let _ = Box::from_raw(this_ptr as *mut nativeCommitmentTransaction); } } #[allow(unused)] -/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy impl CommitmentTransaction { + pub(crate) fn get_native_ref(&self) -> &'static nativeCommitmentTransaction { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeCommitmentTransaction { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy pub(crate) fn take_inner(mut self) -> *mut nativeCommitmentTransaction { assert!(self.is_owned); - let ret = self.inner; - self.inner = std::ptr::null_mut(); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); ret } } impl Clone for CommitmentTransaction { fn clone(&self) -> Self { Self { - inner: if <*mut nativeCommitmentTransaction>::is_null(self.inner) { std::ptr::null_mut() } else { - Box::into_raw(Box::new(unsafe { &*self.inner }.clone())) }, + inner: if <*mut nativeCommitmentTransaction>::is_null(self.inner) { core::ptr::null_mut() } else { + ObjOps::heap_alloc(unsafe { &*ObjOps::untweak_ptr(self.inner) }.clone()) }, is_owned: true, } } @@ -1337,7 +1697,7 @@ pub extern "C" fn CommitmentTransaction_clone(orig: &CommitmentTransaction) -> C #[no_mangle] /// Serialize the CommitmentTransaction object into a byte array which can be read by CommitmentTransaction_read pub extern "C" fn CommitmentTransaction_write(obj: &CommitmentTransaction) -> crate::c_types::derived::CVec_u8Z { - crate::c_types::serialize_obj(unsafe { &*unsafe { &*obj }.inner }) + crate::c_types::serialize_obj(unsafe { &*obj }.get_native_ref()) } #[no_mangle] pub(crate) extern "C" fn CommitmentTransaction_write_void(obj: *const c_void) -> crate::c_types::derived::CVec_u8Z { @@ -1346,15 +1706,15 @@ pub(crate) extern "C" fn CommitmentTransaction_write_void(obj: *const c_void) -> #[no_mangle] /// Read a CommitmentTransaction from a byte array, created by CommitmentTransaction_write pub extern "C" fn CommitmentTransaction_read(ser: crate::c_types::u8slice) -> crate::c_types::derived::CResult_CommitmentTransactionDecodeErrorZ { - let res = crate::c_types::deserialize_obj(ser); - let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::CommitmentTransaction { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: Box::into_raw(Box::new(e)), is_owned: true } }).into() }; + let res: Result = crate::c_types::deserialize_obj(ser); + let mut local_res = match res { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::CommitmentTransaction { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning::ln::msgs::DecodeError { inner: ObjOps::heap_alloc(e), is_owned: true } }).into() }; local_res } /// The backwards-counting commitment number #[must_use] #[no_mangle] pub extern "C" fn CommitmentTransaction_commitment_number(this_arg: &CommitmentTransaction) -> u64 { - let mut ret = unsafe { &*this_arg.inner }.commitment_number(); + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.commitment_number(); ret } @@ -1362,7 +1722,7 @@ pub extern "C" fn CommitmentTransaction_commitment_number(this_arg: &CommitmentT #[must_use] #[no_mangle] pub extern "C" fn CommitmentTransaction_to_broadcaster_value_sat(this_arg: &CommitmentTransaction) -> u64 { - let mut ret = unsafe { &*this_arg.inner }.to_broadcaster_value_sat(); + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.to_broadcaster_value_sat(); ret } @@ -1370,7 +1730,7 @@ pub extern "C" fn CommitmentTransaction_to_broadcaster_value_sat(this_arg: &Comm #[must_use] #[no_mangle] pub extern "C" fn CommitmentTransaction_to_countersignatory_value_sat(this_arg: &CommitmentTransaction) -> u64 { - let mut ret = unsafe { &*this_arg.inner }.to_countersignatory_value_sat(); + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.to_countersignatory_value_sat(); ret } @@ -1378,7 +1738,7 @@ pub extern "C" fn CommitmentTransaction_to_countersignatory_value_sat(this_arg: #[must_use] #[no_mangle] pub extern "C" fn CommitmentTransaction_feerate_per_kw(this_arg: &CommitmentTransaction) -> u32 { - let mut ret = unsafe { &*this_arg.inner }.feerate_per_kw(); + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.feerate_per_kw(); ret } @@ -1387,12 +1747,12 @@ pub extern "C" fn CommitmentTransaction_feerate_per_kw(this_arg: &CommitmentTran /// Applies a wrapper which allows access to these fields. /// /// This should only be used if you fully trust the builder of this object. It should not -///\tbe used by an external signer - instead use the verify function. +/// be used by an external signer - instead use the verify function. #[must_use] #[no_mangle] pub extern "C" fn CommitmentTransaction_trust(this_arg: &CommitmentTransaction) -> crate::lightning::ln::chan_utils::TrustedCommitmentTransaction { - let mut ret = unsafe { &*this_arg.inner }.trust(); - crate::lightning::ln::chan_utils::TrustedCommitmentTransaction { inner: Box::into_raw(Box::new(ret)), is_owned: true } + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.trust(); + crate::lightning::ln::chan_utils::TrustedCommitmentTransaction { inner: ObjOps::heap_alloc(ret), is_owned: true } } /// Verify our pre-built transaction and derived transaction creation public keys. @@ -1404,14 +1764,14 @@ pub extern "C" fn CommitmentTransaction_trust(this_arg: &CommitmentTransaction) #[must_use] #[no_mangle] pub extern "C" fn CommitmentTransaction_verify(this_arg: &CommitmentTransaction, channel_parameters: &crate::lightning::ln::chan_utils::DirectedChannelTransactionParameters, broadcaster_keys: &crate::lightning::ln::chan_utils::ChannelPublicKeys, countersignatory_keys: &crate::lightning::ln::chan_utils::ChannelPublicKeys) -> crate::c_types::derived::CResult_TrustedCommitmentTransactionNoneZ { - let mut ret = unsafe { &*this_arg.inner }.verify(unsafe { &*channel_parameters.inner }, unsafe { &*broadcaster_keys.inner }, unsafe { &*countersignatory_keys.inner }, secp256k1::SECP256K1); - let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::TrustedCommitmentTransaction { inner: Box::into_raw(Box::new(o)), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() }; + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.verify(channel_parameters.get_native_ref(), broadcaster_keys.get_native_ref(), countersignatory_keys.get_native_ref(), secp256k1::SECP256K1); + let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning::ln::chan_utils::TrustedCommitmentTransaction { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { () /*e*/ }).into() }; local_ret } use lightning::ln::chan_utils::TrustedCommitmentTransaction as nativeTrustedCommitmentTransactionImport; -type nativeTrustedCommitmentTransaction = nativeTrustedCommitmentTransactionImport<'static>; +pub(crate) type nativeTrustedCommitmentTransaction = nativeTrustedCommitmentTransactionImport<'static>; /// A wrapper on CommitmentTransaction indicating that the derived fields (the built bitcoin /// transaction and the transaction creation keys) are trusted. @@ -1437,7 +1797,7 @@ pub struct TrustedCommitmentTransaction { impl Drop for TrustedCommitmentTransaction { fn drop(&mut self) { if self.is_owned && !<*mut nativeTrustedCommitmentTransaction>::is_null(self.inner) { - let _ = unsafe { Box::from_raw(self.inner) }; + let _ = unsafe { Box::from_raw(ObjOps::untweak_ptr(self.inner)) }; } } } @@ -1446,16 +1806,22 @@ impl Drop for TrustedCommitmentTransaction { pub extern "C" fn TrustedCommitmentTransaction_free(this_obj: TrustedCommitmentTransaction) { } #[allow(unused)] /// Used only if an object of this type is returned as a trait impl by a method -extern "C" fn TrustedCommitmentTransaction_free_void(this_ptr: *mut c_void) { +pub(crate) extern "C" fn TrustedCommitmentTransaction_free_void(this_ptr: *mut c_void) { unsafe { let _ = Box::from_raw(this_ptr as *mut nativeTrustedCommitmentTransaction); } } #[allow(unused)] -/// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy impl TrustedCommitmentTransaction { + pub(crate) fn get_native_ref(&self) -> &'static nativeTrustedCommitmentTransaction { + unsafe { &*ObjOps::untweak_ptr(self.inner) } + } + pub(crate) fn get_native_mut_ref(&self) -> &'static mut nativeTrustedCommitmentTransaction { + unsafe { &mut *ObjOps::untweak_ptr(self.inner) } + } + /// When moving out of the pointer, we have to ensure we aren't a reference, this makes that easy pub(crate) fn take_inner(mut self) -> *mut nativeTrustedCommitmentTransaction { assert!(self.is_owned); - let ret = self.inner; - self.inner = std::ptr::null_mut(); + let ret = ObjOps::untweak_ptr(self.inner); + self.inner = core::ptr::null_mut(); ret } } @@ -1463,7 +1829,7 @@ impl TrustedCommitmentTransaction { #[must_use] #[no_mangle] pub extern "C" fn TrustedCommitmentTransaction_txid(this_arg: &TrustedCommitmentTransaction) -> crate::c_types::ThirtyTwoBytes { - let mut ret = unsafe { &*this_arg.inner }.txid(); + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.txid(); crate::c_types::ThirtyTwoBytes { data: ret.into_inner() } } @@ -1471,16 +1837,24 @@ pub extern "C" fn TrustedCommitmentTransaction_txid(this_arg: &TrustedCommitment #[must_use] #[no_mangle] pub extern "C" fn TrustedCommitmentTransaction_built_transaction(this_arg: &TrustedCommitmentTransaction) -> crate::lightning::ln::chan_utils::BuiltCommitmentTransaction { - let mut ret = unsafe { &*this_arg.inner }.built_transaction(); - crate::lightning::ln::chan_utils::BuiltCommitmentTransaction { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false } + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.built_transaction(); + crate::lightning::ln::chan_utils::BuiltCommitmentTransaction { inner: unsafe { ObjOps::nonnull_ptr_to_inner((ret as *const lightning::ln::chan_utils::BuiltCommitmentTransaction<>) as *mut _) }, is_owned: false } } /// The pre-calculated transaction creation public keys. #[must_use] #[no_mangle] pub extern "C" fn TrustedCommitmentTransaction_keys(this_arg: &TrustedCommitmentTransaction) -> crate::lightning::ln::chan_utils::TxCreationKeys { - let mut ret = unsafe { &*this_arg.inner }.keys(); - crate::lightning::ln::chan_utils::TxCreationKeys { inner: unsafe { ( (&(*ret) as *const _) as *mut _) }, is_owned: false } + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.keys(); + crate::lightning::ln::chan_utils::TxCreationKeys { inner: unsafe { ObjOps::nonnull_ptr_to_inner((ret as *const lightning::ln::chan_utils::TxCreationKeys<>) as *mut _) }, is_owned: false } +} + +/// Should anchors be used. +#[must_use] +#[no_mangle] +pub extern "C" fn TrustedCommitmentTransaction_opt_anchors(this_arg: &TrustedCommitmentTransaction) -> bool { + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.opt_anchors(); + ret } /// Get a signature for each HTLC which was included in the commitment transaction (ie for @@ -1490,12 +1864,17 @@ pub extern "C" fn TrustedCommitmentTransaction_keys(this_arg: &TrustedCommitment #[must_use] #[no_mangle] pub extern "C" fn TrustedCommitmentTransaction_get_htlc_sigs(this_arg: &TrustedCommitmentTransaction, htlc_base_key: *const [u8; 32], channel_parameters: &crate::lightning::ln::chan_utils::DirectedChannelTransactionParameters) -> crate::c_types::derived::CResult_CVec_SignatureZNoneZ { - 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 }, secp256k1::SECP256K1); - 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( { crate::c_types::Signature::from_rust(&item) }); }; local_ret_0.into() }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { 0u8 /*e*/ }).into() }; + let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_htlc_sigs(&::bitcoin::secp256k1::key::SecretKey::from_slice(&unsafe { *htlc_base_key}[..]).unwrap(), channel_parameters.get_native_ref(), secp256k1::SECP256K1); + 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( { crate::c_types::Signature::from_rust(&item) }); }; local_ret_0.into() }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { () /*e*/ }).into() }; local_ret } -/// Get the transaction number obscure factor +/// Commitment transaction numbers which appear in the transactions themselves are XOR'd with a +/// shared secret first. This prevents on-chain observers from discovering how many commitment +/// transactions occurred in a channel before it was closed. +/// +/// This function gets the shared secret from relevant channel public keys and can be used to +/// \"decrypt\" the commitment transaction number given a commitment transaction on-chain. #[no_mangle] 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 { 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);