2 #include "include/rust_types.h"
3 #include "include/lightning.h"
5 #include "include/lightningpp.hpp"
9 #include <sys/socket.h>
19 const uint8_t valid_node_announcement[] = {
20 0x94, 0xe4, 0xf5, 0x61, 0x41, 0x24, 0x7d, 0x90, 0x23, 0xa0, 0xc8, 0x34, 0x8c, 0xc4, 0xca, 0x51,
21 0xd8, 0x17, 0x59, 0xff, 0x7d, 0xac, 0x8c, 0x9b, 0x63, 0x29, 0x1c, 0xe6, 0x12, 0x12, 0x93, 0xbd,
22 0x66, 0x4d, 0x6b, 0x9c, 0xfb, 0x35, 0xda, 0x16, 0x06, 0x3d, 0xf0, 0x8f, 0x8a, 0x39, 0x99, 0xa2,
23 0xf2, 0x5d, 0x12, 0x0f, 0x2b, 0x42, 0x1b, 0x8b, 0x9a, 0xfe, 0x33, 0x0c, 0xeb, 0x33, 0x5e, 0x52,
24 0xee, 0x99, 0xa1, 0x07, 0x06, 0xed, 0xf8, 0x48, 0x7a, 0xc6, 0xe5, 0xf5, 0x5e, 0x01, 0x3a, 0x41,
25 0x2f, 0x18, 0x94, 0x8a, 0x3b, 0x0a, 0x52, 0x3f, 0xbf, 0x61, 0xa9, 0xc5, 0x4f, 0x70, 0xee, 0xb8,
26 0x79, 0x23, 0xbb, 0x1a, 0x44, 0x7d, 0x91, 0xe6, 0x2a, 0xbc, 0xa1, 0x07, 0xbc, 0x65, 0x3b, 0x02,
27 0xd9, 0x1d, 0xb2, 0xf2, 0x3a, 0xcb, 0x75, 0x79, 0xc6, 0x66, 0xd8, 0xc1, 0x71, 0x29, 0xdf, 0x04,
28 0x60, 0xf4, 0xbf, 0x07, 0x7b, 0xb9, 0xc2, 0x11, 0x94, 0x6a, 0x28, 0xc2, 0xdd, 0xd8, 0x7b, 0x44,
29 0x8f, 0x08, 0xe3, 0xc8, 0xd8, 0xf4, 0x81, 0xb0, 0x9f, 0x94, 0xcb, 0xc8, 0xc1, 0x3c, 0xc2, 0x6e,
30 0x31, 0x26, 0xfc, 0x33, 0x16, 0x3b, 0xe0, 0xde, 0xa1, 0x16, 0x21, 0x9f, 0x89, 0xdd, 0x97, 0xa4,
31 0x41, 0xf2, 0x9f, 0x19, 0xb1, 0xae, 0x82, 0xf7, 0x85, 0x9a, 0xb7, 0x8f, 0xb7, 0x52, 0x7a, 0x72,
32 0xf1, 0x5e, 0x89, 0xe1, 0x8a, 0xcd, 0x40, 0xb5, 0x8e, 0xc3, 0xca, 0x42, 0x76, 0xa3, 0x6e, 0x1b,
33 0xf4, 0x87, 0x35, 0x30, 0x58, 0x43, 0x04, 0xd9, 0x2c, 0x50, 0x54, 0x55, 0x47, 0x6f, 0x70, 0x9b,
34 0x42, 0x1f, 0x91, 0xfc, 0xa1, 0xdb, 0x72, 0x53, 0x96, 0xc8, 0xe5, 0xcd, 0x0e, 0xcb, 0xa0, 0xfe,
35 0x6b, 0x08, 0x77, 0x48, 0xb7, 0xad, 0x4a, 0x69, 0x7c, 0xdc, 0xd8, 0x04, 0x28, 0x35, 0x9b, 0x73,
36 0x00, 0x00, 0x43, 0x49, 0x7f, 0xd7, 0xf8, 0x26, 0x95, 0x71, 0x08, 0xf4, 0xa3, 0x0f, 0xd9, 0xce,
37 0xc3, 0xae, 0xba, 0x79, 0x97, 0x20, 0x84, 0xe9, 0x0e, 0xad, 0x01, 0xea, 0x33, 0x09, 0x00, 0x00,
38 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x5b, 0xe5, 0xe9, 0x47, 0x82,
39 0x09, 0x67, 0x4a, 0x96, 0xe6, 0x0f, 0x1f, 0x03, 0x7f, 0x61, 0x76, 0x54, 0x0f, 0xd0, 0x01, 0xfa,
40 0x1d, 0x64, 0x69, 0x47, 0x70, 0xc5, 0x6a, 0x77, 0x09, 0xc4, 0x2c, 0x03, 0x5c, 0x4e, 0x0d, 0xec,
41 0x72, 0x15, 0xe2, 0x68, 0x33, 0x93, 0x87, 0x30, 0xe5, 0xe5, 0x05, 0xaa, 0x62, 0x50, 0x4d, 0xa8,
42 0x5b, 0xa5, 0x71, 0x06, 0xa4, 0x6b, 0x5a, 0x24, 0x04, 0xfc, 0x9d, 0x8e, 0x02, 0xba, 0x72, 0xa6,
43 0xe8, 0xba, 0x53, 0xe8, 0xb9, 0x71, 0xad, 0x0c, 0x98, 0x23, 0x96, 0x8a, 0xef, 0x4d, 0x78, 0xce,
44 0x8a, 0xf2, 0x55, 0xab, 0x43, 0xdf, 0xf8, 0x30, 0x03, 0xc9, 0x02, 0xfb, 0x8d, 0x02, 0x16, 0x34,
45 0x5b, 0xf8, 0x31, 0x16, 0x4a, 0x03, 0x75, 0x8e, 0xae, 0xa5, 0xe8, 0xb6, 0x6f, 0xee, 0x2b, 0xe7,
46 0x71, 0x0b, 0x8f, 0x19, 0x0e, 0xe8, 0x80, 0x24, 0x90, 0x32, 0xa2, 0x9e, 0xd6, 0x6e
49 // A simple block containing only one transaction (which is the channel-open transaction for the
50 // channel we'll create). This was originally created by printing additional data in a simple
51 // rust-lightning unit test.
52 const uint8_t channel_open_header[80] = {
53 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
54 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
55 0x00, 0x00, 0x00, 0x00, 0xa2, 0x47, 0xd2, 0xf8, 0xd4, 0xe0, 0x6a, 0x3f, 0xf9, 0x7a, 0x9a, 0x34,
56 0xbb, 0xa9, 0x96, 0xde, 0x63, 0x84, 0x5a, 0xce, 0xcf, 0x98, 0xb8, 0xbb, 0x75, 0x4c, 0x4f, 0x7d,
57 0xee, 0x4c, 0xa9, 0x5f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
60 const uint8_t channel_open_tx[] = {
61 0x02, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
62 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
63 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
64 0x01, 0x40, 0x9c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x22, 0x00, 0x20, 0xd1, 0xd9, 0x13, 0xa9,
65 0x76, 0x09, 0x05, 0xa3, 0x4d, 0x13, 0x5b, 0x69, 0xaa, 0xe7, 0x79, 0x71, 0xb9, 0x75, 0xa1, 0xd0,
66 0x77, 0xcb, 0xa2, 0xf6, 0x6a, 0x25, 0x37, 0x3a, 0xaf, 0xdc, 0x11, 0x09, 0x01, 0x00, 0x00, 0x00,
70 // The first transaction in the block is header (80 bytes) + transaction count (1 byte) into the block data.
71 const uint8_t channel_open_txid[] = {
72 0x02, 0xe0, 0x50, 0x05, 0x33, 0xd3, 0x29, 0x66, 0x0c, 0xb2, 0xcb, 0x1e, 0x7a, 0x4a, 0xc7, 0xc7,
73 0x8b, 0x02, 0x46, 0x7e, 0x30, 0x2c, 0xe6, 0x19, 0xce, 0x43, 0x3e, 0xdf, 0x43, 0x65, 0xae, 0xf9,
76 // Two blocks built on top of channel_open_block:
77 const uint8_t header_1[80] = {
78 0x01, 0x00, 0x00, 0x00, 0x65, 0x8e, 0xf1, 0x90, 0x88, 0xfa, 0x13, 0x9c, 0x6a, 0xea, 0xf7, 0xc1,
79 0x5a, 0xdd, 0x52, 0x4d, 0x3c, 0x48, 0x03, 0xb3, 0x9b, 0x25, 0x4f, 0x02, 0x79, 0x05, 0x90, 0xe0,
80 0xc4, 0x8d, 0xa0, 0x62, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
81 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
82 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
84 const uint8_t header_2[80] = {
85 0x01, 0x00, 0x00, 0x00, 0xf2, 0x08, 0x87, 0x51, 0xcb, 0xb1, 0x1a, 0x51, 0x76, 0x01, 0x6c, 0x5d,
86 0x76, 0x26, 0x54, 0x6f, 0xd9, 0xbd, 0xa6, 0xa5, 0xe9, 0x4b, 0x21, 0x6e, 0xda, 0xa3, 0x64, 0x23,
87 0xcd, 0xf1, 0xe2, 0xe2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
88 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
89 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
92 const LDKThirtyTwoBytes payment_preimage_1 = {
93 .data = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1 }
95 const LDKThirtyTwoBytes payment_hash_1 = {
97 0xdc, 0xb1, 0xac, 0x4a, 0x5d, 0xe3, 0x70, 0xca, 0xd0, 0x91, 0xc1, 0x3f, 0x13, 0xae, 0xe2, 0xf9,
98 0x36, 0xc2, 0x78, 0xfa, 0x05, 0xd2, 0x64, 0x65, 0x3c, 0x0c, 0x13, 0x21, 0x85, 0x2a, 0x35, 0xe8
102 const LDKThirtyTwoBytes genesis_hash = { // We don't care particularly if this is "right"
103 .data = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1 }
106 void print_log(const void *this_arg, const char *record) {
107 printf("%p - %s\n", this_arg, record);
110 uint32_t get_fee(const void *this_arg, LDKConfirmationTarget target) {
111 if (target == LDKConfirmationTarget_Background) {
116 // Note that we don't call _free() on target, but that's OK, its unitary
118 // We use the same fee estimator globally:
119 const LDKFeeEstimator fee_est {
121 .get_est_sat_per_1000_weight = get_fee,
125 static std::atomic_int num_txs_broadcasted(0);
126 void broadcast_tx(const void *this_arg, LDKTransaction tx) {
127 num_txs_broadcasted += 1;
129 Transaction_free(tx);
132 struct NodeMonitors {
134 std::vector<std::pair<LDK::OutPoint, LDK::ChannelMonitor>> mons;
137 void ConnectBlock(const uint8_t (*header)[80], uint32_t height, LDKCVec_C2Tuple_usizeTransactionZZ tx_data, LDKBroadcasterInterface broadcast, LDKFeeEstimator fee_est) {
138 std::unique_lock<std::mutex> l(mut);
139 for (auto& mon : mons) {
140 LDK::CVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ res = ChannelMonitor_block_connected(&mon.second, &header_2, tx_data, height, broadcast, fee_est, *logger);
145 LDKCResult_NoneChannelMonitorUpdateErrZ add_channel_monitor(const void *this_arg, LDKOutPoint funding_txo_arg, LDKChannelMonitor monitor_arg) {
146 // First bind the args to C++ objects so they auto-free
147 LDK::ChannelMonitor mon(std::move(monitor_arg));
148 LDK::OutPoint funding_txo(std::move(funding_txo_arg));
150 NodeMonitors* arg = (NodeMonitors*) this_arg;
151 std::unique_lock<std::mutex> l(arg->mut);
153 arg->mons.push_back(std::make_pair(std::move(funding_txo), std::move(mon)));
154 return CResult_NoneChannelMonitorUpdateErrZ_ok();
156 static std::atomic_int mons_updated(0);
157 LDKCResult_NoneChannelMonitorUpdateErrZ update_channel_monitor(const void *this_arg, LDKOutPoint funding_txo_arg, LDKChannelMonitorUpdate monitor_arg) {
158 // First bind the args to C++ objects so they auto-free
159 LDK::ChannelMonitorUpdate update(std::move(monitor_arg));
160 LDK::OutPoint funding_txo(std::move(funding_txo_arg));
162 NodeMonitors* arg = (NodeMonitors*) this_arg;
163 std::unique_lock<std::mutex> l(arg->mut);
165 bool updated = false;
166 for (auto& mon : arg->mons) {
167 if (OutPoint_get_index(&mon.first) == OutPoint_get_index(&funding_txo) &&
168 !memcmp(OutPoint_get_txid(&mon.first), OutPoint_get_txid(&funding_txo), 32)) {
170 LDKBroadcasterInterface broadcaster = {
171 .broadcast_transaction = broadcast_tx,
173 LDK::CResult_NoneMonitorUpdateErrorZ res = ChannelMonitor_update_monitor(&mon.second, &update, &broadcaster, &fee_est, arg->logger);
174 assert(res->result_ok);
180 return CResult_NoneChannelMonitorUpdateErrZ_ok();
182 LDKCVec_MonitorEventZ monitors_pending_monitor_events(const void *this_arg) {
183 NodeMonitors* arg = (NodeMonitors*) this_arg;
184 std::unique_lock<std::mutex> l(arg->mut);
186 if (arg->mons.size() == 0) {
187 return LDKCVec_MonitorEventZ {
192 // We only ever actually have one channel per node, plus concatenating two
193 // Rust Vecs to each other from C++ will require a bit of effort.
194 assert(arg->mons.size() == 1);
195 return ChannelMonitor_get_and_clear_pending_monitor_events(&arg->mons[0].second);
199 uintptr_t sock_send_data(void *this_arg, LDKu8slice data, bool resume_read) {
200 return write((int)((long)this_arg), data.data, data.datalen);
202 void sock_disconnect_socket(void *this_arg) {
203 close((int)((long)this_arg));
205 bool sock_eq(const void *this_arg, const LDKSocketDescriptor *other_arg) {
206 return this_arg == other_arg->this_arg;
208 uint64_t sock_hash(const void *this_arg) {
209 return (uint64_t)this_arg;
211 void sock_read_data_thread(int rdfd, LDKSocketDescriptor *peer_descriptor, LDKPeerManager *pm) {
212 unsigned char buf[1024];
216 while ((readlen = read(rdfd, buf, 1024)) > 0) {
217 data.datalen = readlen;
218 LDK::CResult_boolPeerHandleErrorZ res = PeerManager_read_event(&*pm, peer_descriptor, data);
219 if (!res->result_ok) {
220 peer_descriptor->disconnect_socket(peer_descriptor->this_arg);
223 PeerManager_process_events(pm);
225 PeerManager_socket_disconnected(&*pm, peer_descriptor);
228 class PeersConnection {
229 int pipefds_1_to_2[2];
230 int pipefds_2_to_1[2];
232 LDKSocketDescriptor sock1, sock2;
235 PeersConnection(LDK::ChannelManager& cm1, LDK::ChannelManager& cm2, LDK::PeerManager& net1, LDK::PeerManager& net2) {
236 assert(!pipe(pipefds_1_to_2));
237 assert(!pipe(pipefds_2_to_1));
239 sock1 = LDKSocketDescriptor {
240 .this_arg = (void*)(long)pipefds_1_to_2[1],
241 .send_data = sock_send_data,
242 .disconnect_socket = sock_disconnect_socket,
249 sock2 = LDKSocketDescriptor {
250 .this_arg = (void*)(long)pipefds_2_to_1[1],
251 .send_data = sock_send_data,
252 .disconnect_socket = sock_disconnect_socket,
259 t1 = std::thread(&sock_read_data_thread, pipefds_2_to_1[0], &sock1, &net1);
260 t2 = std::thread(&sock_read_data_thread, pipefds_1_to_2[0], &sock2, &net2);
262 // Note that we have to bind the result to a C++ class to make sure it gets free'd
263 LDK::CResult_CVec_u8ZPeerHandleErrorZ con_res = PeerManager_new_outbound_connection(&net1, ChannelManager_get_our_node_id(&cm2), sock1);
264 assert(con_res->result_ok);
265 LDK::CResult_NonePeerHandleErrorZ con_res2 = PeerManager_new_inbound_connection(&net2, sock2);
266 assert(con_res2->result_ok);
268 auto writelen = write(pipefds_1_to_2[1], con_res->contents.result->data, con_res->contents.result->datalen);
269 assert(writelen > 0 && uint64_t(writelen) == con_res->contents.result->datalen);
272 // Wait for the initial handshakes to complete...
273 LDK::CVec_PublicKeyZ peers_1 = PeerManager_get_peer_node_ids(&net1);
274 LDK::CVec_PublicKeyZ peers_2 = PeerManager_get_peer_node_ids(&net2);
275 if (peers_1->datalen == 1 && peers_2->datalen ==1) { break; }
276 std::this_thread::yield();
281 close(pipefds_1_to_2[0]);
282 close(pipefds_2_to_1[0]);
283 close(pipefds_1_to_2[1]);
284 close(pipefds_2_to_1[1]);
291 LDKPublicKey null_pk;
292 memset(&null_pk, 0, sizeof(null_pk));
294 LDKThirtyTwoBytes random_bytes;
295 LDKThirtyTwoBytes chain_tip;
296 memset(&chain_tip, 0, sizeof(chain_tip)); // channel_open_header's prev_blockhash is all-0s
298 LDKNetwork network = LDKNetwork_Testnet;
300 // Trait implementations:
301 LDKBroadcasterInterface broadcast {
303 .broadcast_transaction = broadcast_tx,
307 // Instantiate classes for the nodes that don't get reloaded on a ser-des reload
309 .this_arg = (void*)1,
315 mons1.logger = &logger1;
318 .watch_channel = add_channel_monitor,
319 .update_channel = update_channel_monitor,
320 .release_pending_monitor_events = monitors_pending_monitor_events,
324 LDK::NetGraphMsgHandler net_graph1 = NetGraphMsgHandler_new(genesis_hash, NULL, logger1);
325 LDKSecretKey node_secret1;
328 .this_arg = (void*)2,
334 mons2.logger = &logger2;
337 .watch_channel = add_channel_monitor,
338 .update_channel = update_channel_monitor,
339 .release_pending_monitor_events = monitors_pending_monitor_events,
343 LDK::NetGraphMsgHandler net_graph2 = NetGraphMsgHandler_new(genesis_hash, NULL, logger2);
344 LDKSecretKey node_secret2;
346 LDK::CVec_u8Z cm1_ser = LDKCVec_u8Z {}; // ChannelManager 1 serialization at the end of the ser-des scope
347 LDK::CVec_u8Z cm2_ser = LDKCVec_u8Z {}; // ChannelManager 2 serialization at the end of the ser-des scope
349 { // Scope for the ser-des reload
350 // Instantiate classes for node 1:
351 uint8_t node_seed[32];
352 memset(&node_seed, 0, 32);
353 LDK::KeysManager keys1 = KeysManager_new(&node_seed, 0, 0);
354 LDK::KeysInterface keys_source1 = KeysManager_as_KeysInterface(&keys1);
355 node_secret1 = keys_source1->get_node_secret(keys_source1->this_arg);
357 LDK::ChannelManager cm1 = ChannelManager_new(fee_est, mon1, broadcast, logger1, KeysManager_as_KeysInterface(&keys1), UserConfig_default(), ChainParameters_new(network, chain_tip, 0));
359 LDK::CVec_ChannelDetailsZ channels = ChannelManager_list_channels(&cm1);
360 assert(channels->datalen == 0);
362 LDK::MessageHandler msg_handler1 = MessageHandler_new(ChannelManager_as_ChannelMessageHandler(&cm1), NetGraphMsgHandler_as_RoutingMessageHandler(&net_graph1));
364 random_bytes = keys_source1->get_secure_random_bytes(keys_source1->this_arg);
365 LDK::PeerManager net1 = PeerManager_new(std::move(msg_handler1), node_secret1, &random_bytes.data, logger1);
367 // Demo getting a channel key and check that its returning real pubkeys:
368 LDK::Sign chan_signer1 = keys_source1->get_channel_signer(keys_source1->this_arg, false, 42);
369 chan_signer1->set_pubkeys(&chan_signer1); // Make sure pubkeys is defined
370 LDKPublicKey payment_point = ChannelPublicKeys_get_payment_point(&chan_signer1->pubkeys);
371 assert(memcmp(&payment_point, &null_pk, sizeof(null_pk)));
373 // Instantiate classes for node 2:
374 memset(&node_seed, 1, 32);
375 LDK::KeysManager keys2 = KeysManager_new(&node_seed, 0, 0);
376 LDK::KeysInterface keys_source2 = KeysManager_as_KeysInterface(&keys2);
377 node_secret2 = keys_source2->get_node_secret(keys_source2->this_arg);
379 LDK::ChannelHandshakeConfig handshake_config2 = ChannelHandshakeConfig_default();
380 ChannelHandshakeConfig_set_minimum_depth(&handshake_config2, 2);
381 LDK::UserConfig config2 = UserConfig_default();
382 UserConfig_set_own_channel_config(&config2, std::move(handshake_config2));
384 LDK::ChannelManager cm2 = ChannelManager_new(fee_est, mon2, broadcast, logger2, KeysManager_as_KeysInterface(&keys2), std::move(config2), ChainParameters_new(network, chain_tip, 0));
386 LDK::CVec_ChannelDetailsZ channels2 = ChannelManager_list_channels(&cm2);
387 assert(channels2->datalen == 0);
389 LDK::RoutingMessageHandler net_msgs2 = NetGraphMsgHandler_as_RoutingMessageHandler(&net_graph2);
390 LDK::CResult_ChannelAnnouncementDecodeErrorZ chan_ann = ChannelAnnouncement_read(LDKu8slice { .data = valid_node_announcement, .datalen = sizeof(valid_node_announcement) });
391 assert(chan_ann->result_ok);
392 LDK::CResult_boolLightningErrorZ ann_res = net_msgs2->handle_channel_announcement(net_msgs2->this_arg, chan_ann->contents.result);
393 assert(ann_res->result_ok);
395 LDK::MessageHandler msg_handler2 = MessageHandler_new(ChannelManager_as_ChannelMessageHandler(&cm2), std::move(net_msgs2));
397 random_bytes = keys_source2->get_secure_random_bytes(keys_source2->this_arg);
398 LDK::PeerManager net2 = PeerManager_new(std::move(msg_handler2), node_secret2, &random_bytes.data, logger2);
400 // Open a connection!
401 PeersConnection conn(cm1, cm2, net1, net2);
403 // Note that we have to bind the result to a C++ class to make sure it gets free'd
404 LDK::CResult_NoneAPIErrorZ res = ChannelManager_create_channel(&cm1, ChannelManager_get_our_node_id(&cm2), 40000, 1000, 42, UserConfig_default());
405 assert(res->result_ok);
406 PeerManager_process_events(&net1);
408 LDK::CVec_ChannelDetailsZ new_channels = ChannelManager_list_channels(&cm1);
409 assert(new_channels->datalen == 1);
410 LDKPublicKey chan_open_pk = ChannelDetails_get_remote_network_id(&new_channels->data[0]);
411 assert(!memcmp(chan_open_pk.compressed_form, ChannelManager_get_our_node_id(&cm2).compressed_form, 33));
414 LDK::CVec_ChannelDetailsZ new_channels_2 = ChannelManager_list_channels(&cm2);
415 if (new_channels_2->datalen == 1) {
416 // Sample getting our counterparty's init features (which used to be hard to do without a memory leak):
417 const LDK::InitFeatures init_feats = ChannelDetails_get_counterparty_features(&new_channels_2->data[0]);
418 assert(init_feats->inner != NULL);
421 std::this_thread::yield();
424 LDKEventsProvider ev1 = ChannelManager_as_EventsProvider(&cm1);
426 LDK::CVec_EventZ events = ev1.get_and_clear_pending_events(ev1.this_arg);
427 if (events->datalen == 1) {
428 assert(events->data[0].tag == LDKEvent_FundingGenerationReady);
429 assert(events->data[0].funding_generation_ready.user_channel_id == 42);
430 assert(events->data[0].funding_generation_ready.channel_value_satoshis == 40000);
431 assert(events->data[0].funding_generation_ready.output_script.datalen == 34);
432 assert(!memcmp(events->data[0].funding_generation_ready.output_script.data, channel_open_tx + 58, 34));
433 LDKThirtyTwoBytes txid;
434 for (int i = 0; i < 32; i++) { txid.data[i] = channel_open_txid[31-i]; }
435 LDK::OutPoint outp = OutPoint_new(txid, 0);
436 ChannelManager_funding_transaction_generated(&cm1, &events->data[0].funding_generation_ready.temporary_channel_id.data, std::move(outp));
439 std::this_thread::yield();
442 // We observe when the funding signed messages have been exchanged by
443 // waiting for two monitors to be registered.
444 PeerManager_process_events(&net1);
446 LDK::CVec_EventZ events = ev1.get_and_clear_pending_events(ev1.this_arg);
447 if (events->datalen == 1) {
448 assert(events->data[0].tag == LDKEvent_FundingBroadcastSafe);
449 assert(events->data[0].funding_broadcast_safe.user_channel_id == 42);
452 std::this_thread::yield();
455 LDKCVec_C2Tuple_usizeTransactionZZ txdata { .data = (LDKC2Tuple_usizeTransactionZ*)malloc(sizeof(LDKC2Tuple_usizeTransactionZ)), .datalen = 1 };
456 *txdata.data = C2Tuple_usizeTransactionZ_new(0, LDKTransaction { .data = (uint8_t*)channel_open_tx, .datalen = sizeof(channel_open_tx), .data_is_owned = false });
457 ChannelManager_block_connected(&cm1, &channel_open_header, txdata, 1);
459 txdata = LDKCVec_C2Tuple_usizeTransactionZZ { .data = (LDKC2Tuple_usizeTransactionZ*)malloc(sizeof(LDKC2Tuple_usizeTransactionZ)), .datalen = 1 };
460 *txdata.data = C2Tuple_usizeTransactionZ_new(0, LDKTransaction { .data = (uint8_t*)channel_open_tx, .datalen = sizeof(channel_open_tx), .data_is_owned = false });
461 ChannelManager_block_connected(&cm2, &channel_open_header, txdata, 1);
463 txdata = LDKCVec_C2Tuple_usizeTransactionZZ { .data = (LDKC2Tuple_usizeTransactionZ*)malloc(sizeof(LDKC2Tuple_usizeTransactionZ)), .datalen = 1 };
464 *txdata.data = C2Tuple_usizeTransactionZ_new(0, LDKTransaction { .data = (uint8_t*)channel_open_tx, .datalen = sizeof(channel_open_tx), .data_is_owned = false });
465 mons1.ConnectBlock(&channel_open_header, 1, txdata, broadcast, fee_est);
467 txdata = LDKCVec_C2Tuple_usizeTransactionZZ { .data = (LDKC2Tuple_usizeTransactionZ*)malloc(sizeof(LDKC2Tuple_usizeTransactionZ)), .datalen = 1 };
468 *txdata.data = C2Tuple_usizeTransactionZ_new(0, LDKTransaction { .data = (uint8_t*)channel_open_tx, .datalen = sizeof(channel_open_tx), .data_is_owned = false });
469 mons2.ConnectBlock(&channel_open_header, 1, txdata, broadcast, fee_est);
471 ChannelManager_block_connected(&cm1, &header_1, LDKCVec_C2Tuple_usizeTransactionZZ { .data = NULL, .datalen = 0 }, 2);
472 ChannelManager_block_connected(&cm2, &header_1, LDKCVec_C2Tuple_usizeTransactionZZ { .data = NULL, .datalen = 0 }, 2);
473 mons1.ConnectBlock(&header_1, 2, LDKCVec_C2Tuple_usizeTransactionZZ { .data = NULL, .datalen = 0 }, broadcast, fee_est);
474 mons2.ConnectBlock(&header_1, 2, LDKCVec_C2Tuple_usizeTransactionZZ { .data = NULL, .datalen = 0 }, broadcast, fee_est);
476 ChannelManager_block_connected(&cm1, &header_2, LDKCVec_C2Tuple_usizeTransactionZZ { .data = NULL, .datalen = 0 }, 3);
477 ChannelManager_block_connected(&cm2, &header_2, LDKCVec_C2Tuple_usizeTransactionZZ { .data = NULL, .datalen = 0 }, 3);
478 mons1.ConnectBlock(&header_2, 3, LDKCVec_C2Tuple_usizeTransactionZZ { .data = NULL, .datalen = 0 }, broadcast, fee_est);
479 mons2.ConnectBlock(&header_2, 3, LDKCVec_C2Tuple_usizeTransactionZZ { .data = NULL, .datalen = 0 }, broadcast, fee_est);
481 PeerManager_process_events(&net1);
482 PeerManager_process_events(&net2);
484 // Now send funds from 1 to 2!
486 LDK::CVec_ChannelDetailsZ outbound_channels = ChannelManager_list_usable_channels(&cm1);
487 if (outbound_channels->datalen == 1) {
488 const LDKChannelDetails *channel = &outbound_channels->data[0];
489 // Note that the channel ID is the same as the channel txid reversed as the output index is 0
490 uint8_t expected_chan_id[32];
491 for (int i = 0; i < 32; i++) { expected_chan_id[i] = channel_open_txid[31-i]; }
492 assert(!memcmp(ChannelDetails_get_channel_id(channel), expected_chan_id, 32));
493 assert(!memcmp(ChannelDetails_get_remote_network_id(channel).compressed_form,
494 ChannelManager_get_our_node_id(&cm2).compressed_form, 33));
495 assert(ChannelDetails_get_channel_value_satoshis(channel) == 40000);
496 // We opened the channel with 1000 push_msat:
497 assert(ChannelDetails_get_outbound_capacity_msat(channel) == 40000*1000 - 1000);
498 assert(ChannelDetails_get_inbound_capacity_msat(channel) == 1000);
499 assert(ChannelDetails_get_is_live(channel));
502 std::this_thread::yield();
505 LDK::CVec_ChannelDetailsZ outbound_channels = ChannelManager_list_usable_channels(&cm1);
506 LDKThirtyTwoBytes payment_secret;
507 memset(payment_secret.data, 0x42, 32);
509 LDK::LockedNetworkGraph graph_2_locked = NetGraphMsgHandler_read_locked_graph(&net_graph2);
510 LDK::NetworkGraph graph_2_ref = LockedNetworkGraph_graph(&graph_2_locked);
511 LDK::CResult_RouteLightningErrorZ route = get_route(ChannelManager_get_our_node_id(&cm1), &graph_2_ref, ChannelManager_get_our_node_id(&cm2), LDKInvoiceFeatures {
512 .inner = NULL, .is_owned = false
513 }, &outbound_channels, LDKCVec_RouteHintZ {
514 .data = NULL, .datalen = 0
515 }, 5000, 10, logger1);
516 assert(route->result_ok);
517 LDK::CResult_NonePaymentSendFailureZ send_res = ChannelManager_send_payment(&cm1, route->contents.result, payment_hash_1, payment_secret);
518 assert(send_res->result_ok);
522 PeerManager_process_events(&net1);
523 while (mons_updated != 4) {
524 std::this_thread::yield();
527 // Check that we received the payment!
528 LDKEventsProvider ev2 = ChannelManager_as_EventsProvider(&cm2);
530 LDK::CVec_EventZ events = ev2.get_and_clear_pending_events(ev2.this_arg);
531 if (events->datalen == 1) {
532 assert(events->data[0].tag == LDKEvent_PendingHTLCsForwardable);
535 std::this_thread::yield();
537 ChannelManager_process_pending_htlc_forwards(&cm2);
538 PeerManager_process_events(&net2);
542 LDK::CVec_EventZ events = ev2.get_and_clear_pending_events(ev2.this_arg);
543 assert(events->datalen == 1);
544 assert(events->data[0].tag == LDKEvent_PaymentReceived);
545 assert(!memcmp(events->data[0].payment_received.payment_hash.data, payment_hash_1.data, 32));
546 assert(!memcmp(events->data[0].payment_received.payment_secret.data, payment_secret.data, 32));
547 assert(events->data[0].payment_received.amt == 5000);
548 assert(ChannelManager_claim_funds(&cm2, payment_preimage_1, payment_secret, 5000));
550 PeerManager_process_events(&net2);
551 // Wait until we've passed through a full set of monitor updates (ie new preimage + CS/RAA messages)
552 while (mons_updated != 5) {
553 std::this_thread::yield();
556 LDK::CVec_EventZ events = ev1.get_and_clear_pending_events(ev1.this_arg);
557 assert(events->datalen == 1);
558 assert(events->data[0].tag == LDKEvent_PaymentSent);
559 assert(!memcmp(events->data[0].payment_sent.payment_preimage.data, payment_preimage_1.data, 32));
564 cm1_ser = ChannelManager_write(&cm1);
565 cm2_ser = ChannelManager_write(&cm2);
568 LDK::CVec_ChannelMonitorZ mons_list1 = LDKCVec_ChannelMonitorZ { .data = (LDKChannelMonitor*)malloc(sizeof(LDKChannelMonitor)), .datalen = 1 };
569 assert(mons1.mons.size() == 1);
570 mons_list1->data[0] = *& std::get<1>(mons1.mons[0]); // Note that we need a reference, thus need a raw clone here, which *& does.
571 mons_list1->data[0].is_owned = false; // XXX: God this sucks
572 uint8_t node_seed[32];
573 memset(&node_seed, 0, 32);
574 LDK::KeysManager keys1 = KeysManager_new(&node_seed, 1, 0);
575 LDK::KeysInterface keys_source1 = KeysManager_as_KeysInterface(&keys1);
577 LDK::ChannelManagerReadArgs cm1_args = ChannelManagerReadArgs_new(KeysManager_as_KeysInterface(&keys1), fee_est, mon1, broadcast, logger1, UserConfig_default(), std::move(mons_list1));
578 LDK::CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ cm1_read =
579 C2Tuple_BlockHashChannelManagerZ_read(LDKu8slice { .data = cm1_ser->data, .datalen = cm1_ser -> datalen}, std::move(cm1_args));
580 assert(cm1_read->result_ok);
581 LDK::ChannelManager cm1(std::move(cm1_read->contents.result->b));
583 LDK::CVec_ChannelMonitorZ mons_list2 = LDKCVec_ChannelMonitorZ { .data = (LDKChannelMonitor*)malloc(sizeof(LDKChannelMonitor)), .datalen = 1 };
584 assert(mons2.mons.size() == 1);
585 mons_list2->data[0] = *& std::get<1>(mons2.mons[0]); // Note that we need a reference, thus need a raw clone here, which *& does.
586 mons_list2->data[0].is_owned = false; // XXX: God this sucks
587 memset(&node_seed, 1, 32);
588 LDK::KeysManager keys2 = KeysManager_new(&node_seed, 1, 0);
590 LDK::ChannelManagerReadArgs cm2_args = ChannelManagerReadArgs_new(KeysManager_as_KeysInterface(&keys2), fee_est, mon2, broadcast, logger2, UserConfig_default(), std::move(mons_list2));
591 LDK::CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ cm2_read =
592 C2Tuple_BlockHashChannelManagerZ_read(LDKu8slice { .data = cm2_ser->data, .datalen = cm2_ser -> datalen}, std::move(cm2_args));
593 assert(cm2_read->result_ok);
594 LDK::ChannelManager cm2(std::move(cm2_read->contents.result->b));
596 // Attempt to close the channel...
598 for (int i = 0; i < 32; i++) { chan_id[i] = channel_open_txid[31-i]; }
599 LDK::CResult_NoneAPIErrorZ close_res = ChannelManager_close_channel(&cm1, &chan_id);
600 assert(!close_res->result_ok); // Note that we can't close while disconnected!
602 // Open a connection!
603 LDK::MessageHandler msg_handler1 = MessageHandler_new(ChannelManager_as_ChannelMessageHandler(&cm1), NetGraphMsgHandler_as_RoutingMessageHandler(&net_graph1));
604 random_bytes = keys_source1->get_secure_random_bytes(keys_source1->this_arg);
605 LDK::PeerManager net1 = PeerManager_new(std::move(msg_handler1), node_secret1, &random_bytes.data, logger1);
607 LDK::MessageHandler msg_handler2 = MessageHandler_new(ChannelManager_as_ChannelMessageHandler(&cm2), NetGraphMsgHandler_as_RoutingMessageHandler(&net_graph2));
608 random_bytes = keys_source1->get_secure_random_bytes(keys_source1->this_arg);
609 LDK::PeerManager net2 = PeerManager_new(std::move(msg_handler2), node_secret2, &random_bytes.data, logger2);
611 PeersConnection conn(cm1, cm2, net1, net2);
614 // Wait for the channels to be considered up once the reestablish messages are processed
615 LDK::CVec_ChannelDetailsZ outbound_channels = ChannelManager_list_usable_channels(&cm1);
616 if (outbound_channels->datalen == 1) {
621 // Actually close the channel
622 close_res = ChannelManager_close_channel(&cm1, &chan_id);
623 assert(close_res->result_ok);
624 PeerManager_process_events(&net1);
625 num_txs_broadcasted = 0;
626 while (num_txs_broadcasted != 2) {
627 std::this_thread::yield();
629 LDK::CVec_ChannelDetailsZ chans_after_close1 = ChannelManager_list_channels(&cm1);
630 assert(chans_after_close1->datalen == 0);
631 LDK::CVec_ChannelDetailsZ chans_after_close2 = ChannelManager_list_channels(&cm2);
632 assert(chans_after_close2->datalen == 0);
636 // Few extra random tests:
639 LDKThirtyTwoBytes kdiv_params;
640 memset(&kdiv_params, 43, 32);
641 LDK::InMemorySigner signer = InMemorySigner_new(sk, sk, sk, sk, sk, random_bytes, 42, kdiv_params);