8 #include "include/lightningpp.hpp"
12 #include <sys/socket.h>
13 #include <netinet/in.h>
14 #include <arpa/inet.h>
24 const uint8_t valid_node_announcement[] = {
25 0x94, 0xe4, 0xf5, 0x61, 0x41, 0x24, 0x7d, 0x90, 0x23, 0xa0, 0xc8, 0x34, 0x8c, 0xc4, 0xca, 0x51,
26 0xd8, 0x17, 0x59, 0xff, 0x7d, 0xac, 0x8c, 0x9b, 0x63, 0x29, 0x1c, 0xe6, 0x12, 0x12, 0x93, 0xbd,
27 0x66, 0x4d, 0x6b, 0x9c, 0xfb, 0x35, 0xda, 0x16, 0x06, 0x3d, 0xf0, 0x8f, 0x8a, 0x39, 0x99, 0xa2,
28 0xf2, 0x5d, 0x12, 0x0f, 0x2b, 0x42, 0x1b, 0x8b, 0x9a, 0xfe, 0x33, 0x0c, 0xeb, 0x33, 0x5e, 0x52,
29 0xee, 0x99, 0xa1, 0x07, 0x06, 0xed, 0xf8, 0x48, 0x7a, 0xc6, 0xe5, 0xf5, 0x5e, 0x01, 0x3a, 0x41,
30 0x2f, 0x18, 0x94, 0x8a, 0x3b, 0x0a, 0x52, 0x3f, 0xbf, 0x61, 0xa9, 0xc5, 0x4f, 0x70, 0xee, 0xb8,
31 0x79, 0x23, 0xbb, 0x1a, 0x44, 0x7d, 0x91, 0xe6, 0x2a, 0xbc, 0xa1, 0x07, 0xbc, 0x65, 0x3b, 0x02,
32 0xd9, 0x1d, 0xb2, 0xf2, 0x3a, 0xcb, 0x75, 0x79, 0xc6, 0x66, 0xd8, 0xc1, 0x71, 0x29, 0xdf, 0x04,
33 0x60, 0xf4, 0xbf, 0x07, 0x7b, 0xb9, 0xc2, 0x11, 0x94, 0x6a, 0x28, 0xc2, 0xdd, 0xd8, 0x7b, 0x44,
34 0x8f, 0x08, 0xe3, 0xc8, 0xd8, 0xf4, 0x81, 0xb0, 0x9f, 0x94, 0xcb, 0xc8, 0xc1, 0x3c, 0xc2, 0x6e,
35 0x31, 0x26, 0xfc, 0x33, 0x16, 0x3b, 0xe0, 0xde, 0xa1, 0x16, 0x21, 0x9f, 0x89, 0xdd, 0x97, 0xa4,
36 0x41, 0xf2, 0x9f, 0x19, 0xb1, 0xae, 0x82, 0xf7, 0x85, 0x9a, 0xb7, 0x8f, 0xb7, 0x52, 0x7a, 0x72,
37 0xf1, 0x5e, 0x89, 0xe1, 0x8a, 0xcd, 0x40, 0xb5, 0x8e, 0xc3, 0xca, 0x42, 0x76, 0xa3, 0x6e, 0x1b,
38 0xf4, 0x87, 0x35, 0x30, 0x58, 0x43, 0x04, 0xd9, 0x2c, 0x50, 0x54, 0x55, 0x47, 0x6f, 0x70, 0x9b,
39 0x42, 0x1f, 0x91, 0xfc, 0xa1, 0xdb, 0x72, 0x53, 0x96, 0xc8, 0xe5, 0xcd, 0x0e, 0xcb, 0xa0, 0xfe,
40 0x6b, 0x08, 0x77, 0x48, 0xb7, 0xad, 0x4a, 0x69, 0x7c, 0xdc, 0xd8, 0x04, 0x28, 0x35, 0x9b, 0x73,
41 0x00, 0x00, 0x43, 0x49, 0x7f, 0xd7, 0xf8, 0x26, 0x95, 0x71, 0x08, 0xf4, 0xa3, 0x0f, 0xd9, 0xce,
42 0xc3, 0xae, 0xba, 0x79, 0x97, 0x20, 0x84, 0xe9, 0x0e, 0xad, 0x01, 0xea, 0x33, 0x09, 0x00, 0x00,
43 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x5b, 0xe5, 0xe9, 0x47, 0x82,
44 0x09, 0x67, 0x4a, 0x96, 0xe6, 0x0f, 0x1f, 0x03, 0x7f, 0x61, 0x76, 0x54, 0x0f, 0xd0, 0x01, 0xfa,
45 0x1d, 0x64, 0x69, 0x47, 0x70, 0xc5, 0x6a, 0x77, 0x09, 0xc4, 0x2c, 0x03, 0x5c, 0x4e, 0x0d, 0xec,
46 0x72, 0x15, 0xe2, 0x68, 0x33, 0x93, 0x87, 0x30, 0xe5, 0xe5, 0x05, 0xaa, 0x62, 0x50, 0x4d, 0xa8,
47 0x5b, 0xa5, 0x71, 0x06, 0xa4, 0x6b, 0x5a, 0x24, 0x04, 0xfc, 0x9d, 0x8e, 0x02, 0xba, 0x72, 0xa6,
48 0xe8, 0xba, 0x53, 0xe8, 0xb9, 0x71, 0xad, 0x0c, 0x98, 0x23, 0x96, 0x8a, 0xef, 0x4d, 0x78, 0xce,
49 0x8a, 0xf2, 0x55, 0xab, 0x43, 0xdf, 0xf8, 0x30, 0x03, 0xc9, 0x02, 0xfb, 0x8d, 0x02, 0x16, 0x34,
50 0x5b, 0xf8, 0x31, 0x16, 0x4a, 0x03, 0x75, 0x8e, 0xae, 0xa5, 0xe8, 0xb6, 0x6f, 0xee, 0x2b, 0xe7,
51 0x71, 0x0b, 0x8f, 0x19, 0x0e, 0xe8, 0x80, 0x24, 0x90, 0x32, 0xa2, 0x9e, 0xd6, 0x6e
54 // A simple block containing only one transaction (which is the channel-open transaction for the
55 // channel we'll create). This was originally created by printing additional data in a simple
56 // rust-lightning unit test.
57 const uint8_t channel_open_block[] = {
58 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
59 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
60 0x00, 0x00, 0x00, 0x00, 0xa2, 0x47, 0xd2, 0xf8, 0xd4, 0xe0, 0x6a, 0x3f, 0xf9, 0x7a, 0x9a, 0x34,
61 0xbb, 0xa9, 0x96, 0xde, 0x63, 0x84, 0x5a, 0xce, 0xcf, 0x98, 0xb8, 0xbb, 0x75, 0x4c, 0x4f, 0x7d,
62 0xee, 0x4c, 0xa9, 0x5f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
63 0x01, // transaction count
64 0x02, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
65 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
66 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
67 0x01, 0x40, 0x9c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x22, 0x00, 0x20, 0xd1, 0xd9, 0x13, 0xa9,
68 0x76, 0x09, 0x05, 0xa3, 0x4d, 0x13, 0x5b, 0x69, 0xaa, 0xe7, 0x79, 0x71, 0xb9, 0x75, 0xa1, 0xd0,
69 0x77, 0xcb, 0xa2, 0xf6, 0x6a, 0x25, 0x37, 0x3a, 0xaf, 0xdc, 0x11, 0x09, 0x01, 0x00, 0x00, 0x00,
73 // The first transaction in the block is header (80 bytes) + transaction count (1 byte) into the block data.
74 const uint8_t channel_open_txid[] = {
75 0x02, 0xe0, 0x50, 0x05, 0x33, 0xd3, 0x29, 0x66, 0x0c, 0xb2, 0xcb, 0x1e, 0x7a, 0x4a, 0xc7, 0xc7,
76 0x8b, 0x02, 0x46, 0x7e, 0x30, 0x2c, 0xe6, 0x19, 0xce, 0x43, 0x3e, 0xdf, 0x43, 0x65, 0xae, 0xf9,
79 // Two blocks built on top of channel_open_block:
80 const uint8_t block_1[81] = {
81 0x01, 0x00, 0x00, 0x00, 0x0c, 0x7a, 0xc2, 0xdc, 0x08, 0xaf, 0x40, 0x7d, 0x58, 0x81, 0x9b, 0x44,
82 0xc7, 0xe0, 0x0f, 0x78, 0xc0, 0xd1, 0x01, 0xa2, 0x03, 0x16, 0x4a, 0x8d, 0x92, 0x66, 0x4e, 0xaf,
83 0x7f, 0xfc, 0x6e, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
84 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
85 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
86 0x00, // transaction count
88 const uint8_t block_2[81] = {
89 0x01, 0x00, 0x00, 0x00, 0x36, 0x0b, 0xf5, 0x46, 0x4a, 0xc7, 0x26, 0x4c, 0x4b, 0x36, 0xa6, 0x9d,
90 0x0e, 0xf0, 0x14, 0xfb, 0x8a, 0xcb, 0x20, 0x84, 0x18, 0xf3, 0xaa, 0x77, 0x32, 0x2d, 0xf7, 0x48,
91 0x62, 0x92, 0xb1, 0xb4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
92 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
93 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
94 0x00, // transaction count
97 const LDKThirtyTwoBytes genesis_hash = { // We don't care particularly if this is "right"
98 .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 }
101 void print_log(const void *this_arg, const LDKRecord *record) {
102 LDK::Str mod = Record_get_module_path(record);
103 LDK::Str str = Record_get_args(record);
104 printf("%p - %.*s:%d - %.*s\n", this_arg, (int)mod->len, mod->chars, Record_get_line(record), (int)str->len, str->chars);
107 uint32_t get_fee(const void *this_arg, LDKConfirmationTarget target) {
108 if (target == LDKConfirmationTarget_Background) {
113 // Note that we don't call _free() on target, but that's OK, its unitary
115 // We use the same fee estimator globally:
116 const LDKFeeEstimator fee_est {
118 .get_est_sat_per_1000_weight = get_fee,
122 static std::atomic_int num_txs_broadcasted(0);
123 void broadcast_tx(const void *this_arg, LDKTransaction tx) {
124 num_txs_broadcasted += 1;
126 Transaction_free(tx);
129 struct NodeMonitors {
131 std::vector<std::pair<LDK::OutPoint, LDK::ChannelMonitor>> mons;
134 void ConnectBlock(const uint8_t (*header)[80], uint32_t height, LDKCVec_C2Tuple_usizeTransactionZZ tx_data, LDKBroadcasterInterface broadcast, LDKFeeEstimator fee_est) {
135 std::unique_lock<std::mutex> l(mut);
136 for (auto& mon : mons) {
137 LDK::CVec_TransactionOutputsZ res = ChannelMonitor_block_connected(&mon.second, header, tx_data, height, broadcast, fee_est, *logger);
142 LDKCResult_NoneChannelMonitorUpdateErrZ add_channel_monitor(const void *this_arg, LDKOutPoint funding_txo_arg, LDKChannelMonitor monitor_arg) {
143 // First bind the args to C++ objects so they auto-free
144 LDK::ChannelMonitor mon(std::move(monitor_arg));
145 LDK::OutPoint funding_txo(std::move(funding_txo_arg));
147 NodeMonitors* arg = (NodeMonitors*) this_arg;
148 std::unique_lock<std::mutex> l(arg->mut);
150 arg->mons.push_back(std::make_pair(std::move(funding_txo), std::move(mon)));
151 return CResult_NoneChannelMonitorUpdateErrZ_ok();
153 static std::atomic_int mons_updated(0);
154 LDKCResult_NoneChannelMonitorUpdateErrZ update_channel_monitor(const void *this_arg, LDKOutPoint funding_txo_arg, LDKChannelMonitorUpdate monitor_arg) {
155 // First bind the args to C++ objects so they auto-free
156 LDK::ChannelMonitorUpdate update(std::move(monitor_arg));
157 LDK::OutPoint funding_txo(std::move(funding_txo_arg));
159 NodeMonitors* arg = (NodeMonitors*) this_arg;
160 std::unique_lock<std::mutex> l(arg->mut);
162 bool updated = false;
163 for (auto& mon : arg->mons) {
164 if (OutPoint_get_index(&mon.first) == OutPoint_get_index(&funding_txo) &&
165 !memcmp(OutPoint_get_txid(&mon.first), OutPoint_get_txid(&funding_txo), 32)) {
167 LDKBroadcasterInterface broadcaster = {
168 .broadcast_transaction = broadcast_tx,
170 LDK::CResult_NoneNoneZ res = ChannelMonitor_update_monitor(&mon.second, &update, &broadcaster, &fee_est, arg->logger);
171 assert(res->result_ok);
177 return CResult_NoneChannelMonitorUpdateErrZ_ok();
179 LDKCVec_MonitorEventZ monitors_pending_monitor_events(const void *this_arg) {
180 NodeMonitors* arg = (NodeMonitors*) this_arg;
181 std::unique_lock<std::mutex> l(arg->mut);
183 if (arg->mons.size() == 0) {
184 return LDKCVec_MonitorEventZ {
189 // We only ever actually have one channel per node, plus concatenating two
190 // Rust Vecs to each other from C++ will require a bit of effort.
191 assert(arg->mons.size() == 1);
192 return ChannelMonitor_get_and_clear_pending_monitor_events(&arg->mons[0].second);
197 std::vector<LDK::Event> events;
199 void handle_event(const void *this_arg, const LDKEvent *event) {
200 EventQueue* arg = (EventQueue*) this_arg;
201 arg->events.push_back(Event_clone(event));
205 class PeersConnection {
210 PeersConnection(LDK::ChannelManager& cm1, LDK::ChannelManager& cm2, LDK::PeerManager& net1, LDK::PeerManager& net2) {
211 node1_handler = init_socket_handling(&net1);
212 node2_handler = init_socket_handling(&net2);
214 struct sockaddr_in listen_addr;
215 listen_addr.sin_family = AF_INET;
216 listen_addr.sin_addr.s_addr = htonl((127 << 8*3) | 1);
217 listen_addr.sin_port = htons(10042);
218 assert(!socket_bind(node2_handler, (sockaddr*)&listen_addr, sizeof(listen_addr)));
220 assert(!socket_connect(node1_handler, ChannelManager_get_our_node_id(&cm2), (sockaddr*)&listen_addr, sizeof(listen_addr)));
223 // Wait for the initial handshakes to complete...
224 LDK::CVec_PublicKeyZ peers_1 = PeerManager_get_peer_node_ids(&net1);
225 LDK::CVec_PublicKeyZ peers_2 = PeerManager_get_peer_node_ids(&net2);
226 if (peers_1->datalen == 1 && peers_2->datalen == 1) { break; }
227 std::this_thread::yield();
230 // Connect twice, which should auto-disconnect, and is a good test of our disconnect pipeline
231 assert(!socket_connect(node1_handler, ChannelManager_get_our_node_id(&cm2), (sockaddr*)&listen_addr, sizeof(listen_addr)));
232 assert(!socket_connect(node1_handler, ChannelManager_get_our_node_id(&cm2), (sockaddr*)&listen_addr, sizeof(listen_addr)));
234 // Then disconnect the "main" connection, while another connection is being made.
235 PeerManager_disconnect_by_node_id(&net1, ChannelManager_get_our_node_id(&cm2), false);
236 assert(!socket_connect(node1_handler, ChannelManager_get_our_node_id(&cm2), (sockaddr*)&listen_addr, sizeof(listen_addr)));
238 // Wait for all our sockets to disconnect (making sure we disconnect any new connections)...
240 PeerManager_disconnect_by_node_id(&net1, ChannelManager_get_our_node_id(&cm2), false);
241 // Wait for the peers to disconnect...
242 LDK::CVec_PublicKeyZ peers_1 = PeerManager_get_peer_node_ids(&net1);
243 LDK::CVec_PublicKeyZ peers_2 = PeerManager_get_peer_node_ids(&net2);
244 if (peers_1->datalen == 0 && peers_2->datalen == 0) { break; }
245 std::this_thread::yield();
247 // Note that the above is somewhat race-y, as node 2 may still think its connected.
248 // Thus, make sure any connections are disconnected on its end as well.
249 PeerManager_disconnect_by_node_id(&net2, ChannelManager_get_our_node_id(&cm1), false);
251 // Finally make an actual connection and keep it this time
252 assert(!socket_connect(node1_handler, ChannelManager_get_our_node_id(&cm2), (sockaddr*)&listen_addr, sizeof(listen_addr)));
255 // Wait for the initial handshakes to complete...
256 LDK::CVec_PublicKeyZ peers_1 = PeerManager_get_peer_node_ids(&net1);
257 LDK::CVec_PublicKeyZ peers_2 = PeerManager_get_peer_node_ids(&net2);
258 if (peers_1->datalen == 1 && peers_2->datalen == 1) { break; }
259 std::this_thread::yield();
263 interrupt_socket_handling(node1_handler);
264 interrupt_socket_handling(node2_handler);
270 uintptr_t sock_send_data(void *this_arg, LDKu8slice data, bool resume_read) {
271 return write((int)((long)this_arg), data.data, data.datalen);
273 void sock_disconnect_socket(void *this_arg) {
274 close((int)((long)this_arg));
276 bool sock_eq(const void *this_arg, const LDKSocketDescriptor *other_arg) {
277 return this_arg == other_arg->this_arg;
279 uint64_t sock_hash(const void *this_arg) {
280 return (uint64_t)this_arg;
282 void sock_read_data_thread(int rdfd, LDKSocketDescriptor *peer_descriptor, LDKPeerManager *pm) {
283 unsigned char buf[1024];
287 while ((readlen = read(rdfd, buf, 1024)) > 0) {
288 data.datalen = readlen;
289 LDK::CResult_boolPeerHandleErrorZ res = PeerManager_read_event(&*pm, peer_descriptor, data);
290 if (!res->result_ok) {
291 peer_descriptor->disconnect_socket(peer_descriptor->this_arg);
294 PeerManager_process_events(pm);
296 PeerManager_socket_disconnected(&*pm, peer_descriptor);
299 class PeersConnection {
300 int pipefds_1_to_2[2];
301 int pipefds_2_to_1[2];
303 LDKSocketDescriptor sock1, sock2;
306 PeersConnection(LDK::ChannelManager& cm1, LDK::ChannelManager& cm2, LDK::PeerManager& net1, LDK::PeerManager& net2) {
307 assert(!pipe(pipefds_1_to_2));
308 assert(!pipe(pipefds_2_to_1));
310 sock1 = LDKSocketDescriptor {
311 .this_arg = (void*)(long)pipefds_1_to_2[1],
312 .send_data = sock_send_data,
313 .disconnect_socket = sock_disconnect_socket,
320 sock2 = LDKSocketDescriptor {
321 .this_arg = (void*)(long)pipefds_2_to_1[1],
322 .send_data = sock_send_data,
323 .disconnect_socket = sock_disconnect_socket,
330 t1 = std::thread(&sock_read_data_thread, pipefds_2_to_1[0], &sock1, &net1);
331 t2 = std::thread(&sock_read_data_thread, pipefds_1_to_2[0], &sock2, &net2);
333 // Note that we have to bind the result to a C++ class to make sure it gets free'd
334 LDK::CResult_CVec_u8ZPeerHandleErrorZ con_res = PeerManager_new_outbound_connection(&net1, ChannelManager_get_our_node_id(&cm2), sock1);
335 assert(con_res->result_ok);
336 LDK::CResult_NonePeerHandleErrorZ con_res2 = PeerManager_new_inbound_connection(&net2, sock2);
337 assert(con_res2->result_ok);
339 auto writelen = write(pipefds_1_to_2[1], con_res->contents.result->data, con_res->contents.result->datalen);
340 assert(writelen > 0 && uint64_t(writelen) == con_res->contents.result->datalen);
343 // Wait for the initial handshakes to complete...
344 LDK::CVec_PublicKeyZ peers_1 = PeerManager_get_peer_node_ids(&net1);
345 LDK::CVec_PublicKeyZ peers_2 = PeerManager_get_peer_node_ids(&net2);
346 if (peers_1->datalen == 1 && peers_2->datalen ==1) { break; }
347 std::this_thread::yield();
352 close(pipefds_1_to_2[0]);
353 close(pipefds_2_to_1[0]);
354 close(pipefds_1_to_2[1]);
355 close(pipefds_2_to_1[1]);
362 struct CustomMsgQueue {
363 std::vector<LDK::Type> msgs;
366 uint16_t custom_msg_type_id(const void *this_arg) {
369 LDKCVec_u8Z custom_msg_bytes(const void *this_arg) {
370 uint8_t *bytes = (uint8_t *) malloc(1024);
371 memset(bytes, 42, 1024);
373 .data = bytes, .datalen = 1024
376 LDKStr custom_msg_debug(const void *this_arg) {
378 .chars = NULL, .len = 0, .chars_is_owned = false
382 LDKCResult_COption_TypeZDecodeErrorZ read_custom_message(const void* this_arg, uint16_t type_id, LDKu8slice buf) {
383 assert(type_id == 8888);
384 assert(buf.datalen == 1024);
386 memset(cmp, 42, 1024);
387 assert(!memcmp(cmp, buf.data, 1024));
388 return CResult_COption_TypeZDecodeErrorZ_ok(COption_TypeZ_some(LDKType {
390 .type_id = custom_msg_type_id,
391 .debug_str = custom_msg_debug,
396 LDKCResult_NoneLightningErrorZ handle_custom_message(const void* this_arg, struct LDKType msg, struct LDKPublicKey _sender_node_id) {
397 CustomMsgQueue* arg = (CustomMsgQueue*) this_arg;
398 arg->msgs.push_back(std::move(msg));
399 return CResult_NoneLightningErrorZ_ok();
401 LDKCVec_C2Tuple_PublicKeyTypeZZ never_send_custom_msgs(const void* this_arg) {
402 return LDKCVec_C2Tuple_PublicKeyTypeZZ {
403 .data = NULL, .datalen = 0
407 LDKCVec_C2Tuple_PublicKeyTypeZZ create_custom_msg(const void* this_arg) {
408 const LDKPublicKey *counterparty_node_id = (const LDKPublicKey *)this_arg;
409 LDKCVec_C2Tuple_PublicKeyTypeZZ ret = {
410 .data = ((LDKC2Tuple_PublicKeyTypeZ*)malloc(sizeof(LDKC2Tuple_PublicKeyTypeZ))),
413 ret.data[0].a = *counterparty_node_id;
414 ret.data[0].b = LDKType {
416 .type_id = custom_msg_type_id,
417 .debug_str = custom_msg_debug,
418 .write = custom_msg_bytes,
424 uint64_t get_chan_score(const void *this_arg, uint64_t scid, uint64_t htlc_amt, uint64_t chan_capacity, const LDKNodeId *src, const LDKNodeId *dst) {
428 struct CustomRouteFinderParams {
430 LDKNetworkGraph *graph_ref;
432 struct LDKCResult_RouteLightningErrorZ custom_find_route(const void *this_arg, struct LDKPublicKey payer, const struct LDKRouteParameters *NONNULL_PTR route_params, const uint8_t (*payment_hash)[32], struct LDKCVec_ChannelDetailsZ *first_hops, const struct LDKScore *NONNULL_PTR scorer) {
433 const struct CustomRouteFinderParams *params = (struct CustomRouteFinderParams *)this_arg;
434 assert(first_hops->datalen == 1);
435 assert(ChannelDetails_get_is_usable(&first_hops->data[0]));
436 return find_route(payer, route_params, params->graph_ref, first_hops, *params->logger, scorer);
440 uint8_t channel_open_header[80];
441 uint8_t header_1[80];
442 uint8_t header_2[80];
443 memcpy(channel_open_header, channel_open_block, 80);
444 memcpy(header_1, block_1, 80);
445 memcpy(header_2, block_2, 80);
447 LDKPublicKey null_pk;
448 memset(&null_pk, 0, sizeof(null_pk));
450 LDKThirtyTwoBytes random_bytes;
451 LDKThirtyTwoBytes chain_tip;
452 memset(&chain_tip, 0, sizeof(chain_tip)); // channel_open_header's prev_blockhash is all-0s
454 LDKNetwork network = LDKNetwork_Testnet;
456 // Trait implementations:
457 LDKBroadcasterInterface broadcast {
459 .broadcast_transaction = broadcast_tx,
463 // Instantiate classes for the nodes that don't get reloaded on a ser-des reload
465 .this_arg = (void*)1,
471 mons1.logger = &logger1;
474 .watch_channel = add_channel_monitor,
475 .update_channel = update_channel_monitor,
476 .release_pending_monitor_events = monitors_pending_monitor_events,
480 LDK::NetworkGraph net_graph1 = NetworkGraph_new(genesis_hash);
481 LDK::NetGraphMsgHandler graph_msg_handler1 = NetGraphMsgHandler_new(&net_graph1, COption_AccessZ_none(), logger1);
482 LDKSecretKey node_secret1;
485 .this_arg = (void*)2,
491 mons2.logger = &logger2;
494 .watch_channel = add_channel_monitor,
495 .update_channel = update_channel_monitor,
496 .release_pending_monitor_events = monitors_pending_monitor_events,
500 LDK::NetworkGraph net_graph2 = NetworkGraph_new(genesis_hash);
501 LDK::NetGraphMsgHandler graph_msg_handler2 = NetGraphMsgHandler_new(&net_graph2, COption_AccessZ_none(), logger2);
502 LDKSecretKey node_secret2;
504 LDK::CVec_u8Z cm1_ser = LDKCVec_u8Z {}; // ChannelManager 1 serialization at the end of the ser-des scope
505 LDK::CVec_u8Z cm2_ser = LDKCVec_u8Z {}; // ChannelManager 2 serialization at the end of the ser-des scope
507 { // Scope for the ser-des reload
508 // Instantiate classes for node 1:
509 uint8_t node_seed[32];
510 memset(&node_seed, 0, 32);
511 LDK::KeysManager keys1 = KeysManager_new(&node_seed, 0, 0);
512 LDK::KeysInterface keys_source1 = KeysManager_as_KeysInterface(&keys1);
513 LDK::CResult_SecretKeyNoneZ node_secret1_res = keys_source1->get_node_secret(keys_source1->this_arg, LDKRecipient_Node);
514 assert(node_secret1_res->result_ok);
515 node_secret1 = *node_secret1_res->contents.result;
517 LDK::ChannelManager cm1 = ChannelManager_new(fee_est, mon1, broadcast, logger1, KeysManager_as_KeysInterface(&keys1), UserConfig_default(), ChainParameters_new(network, BestBlock_new(chain_tip, 0)));
519 LDK::CVec_ChannelDetailsZ channels = ChannelManager_list_channels(&cm1);
520 assert(channels->datalen == 0);
522 LDK::MessageHandler msg_handler1 = MessageHandler_new(ChannelManager_as_ChannelMessageHandler(&cm1), NetGraphMsgHandler_as_RoutingMessageHandler(&graph_msg_handler1));
524 LDK::IgnoringMessageHandler ignoring_handler1 = IgnoringMessageHandler_new();
525 LDK::CustomMessageHandler custom_msg_handler1 = IgnoringMessageHandler_as_CustomMessageHandler(&ignoring_handler1);
527 random_bytes = keys_source1->get_secure_random_bytes(keys_source1->this_arg);
528 LDK::PeerManager net1 = PeerManager_new(std::move(msg_handler1), node_secret1, &random_bytes.data, logger1, std::move(custom_msg_handler1));
530 // Demo getting a channel key and check that its returning real pubkeys:
531 LDK::Sign chan_signer1 = keys_source1->get_channel_signer(keys_source1->this_arg, false, 42);
532 chan_signer1->BaseSign.set_pubkeys(&chan_signer1->BaseSign); // Make sure pubkeys is defined
533 LDKPublicKey payment_point = ChannelPublicKeys_get_payment_point(&chan_signer1->BaseSign.pubkeys);
534 assert(memcmp(&payment_point, &null_pk, sizeof(null_pk)));
536 // Instantiate classes for node 2:
537 memset(&node_seed, 1, 32);
538 LDK::KeysManager keys2 = KeysManager_new(&node_seed, 0, 0);
539 LDK::KeysInterface keys_source2 = KeysManager_as_KeysInterface(&keys2);
540 LDK::CResult_SecretKeyNoneZ node_secret2_res = keys_source2->get_node_secret(keys_source2->this_arg, LDKRecipient_Node);
541 assert(node_secret2_res->result_ok);
542 node_secret2 = *node_secret2_res->contents.result;
544 LDK::ChannelHandshakeConfig handshake_config2 = ChannelHandshakeConfig_default();
545 ChannelHandshakeConfig_set_minimum_depth(&handshake_config2, 2);
546 LDK::UserConfig config2 = UserConfig_default();
547 UserConfig_set_own_channel_config(&config2, std::move(handshake_config2));
549 LDK::ChannelManager cm2 = ChannelManager_new(fee_est, mon2, broadcast, logger2, KeysManager_as_KeysInterface(&keys2), std::move(config2), ChainParameters_new(network, BestBlock_new(chain_tip, 0)));
551 LDK::CVec_ChannelDetailsZ channels2 = ChannelManager_list_channels(&cm2);
552 assert(channels2->datalen == 0);
554 LDK::RoutingMessageHandler net_msgs2 = NetGraphMsgHandler_as_RoutingMessageHandler(&graph_msg_handler2);
555 LDK::CResult_ChannelAnnouncementDecodeErrorZ chan_ann = ChannelAnnouncement_read(LDKu8slice { .data = valid_node_announcement, .datalen = sizeof(valid_node_announcement) });
556 assert(chan_ann->result_ok);
557 LDK::CResult_boolLightningErrorZ ann_res = net_msgs2->handle_channel_announcement(net_msgs2->this_arg, chan_ann->contents.result);
558 assert(ann_res->result_ok);
560 LDK::MessageHandler msg_handler2 = MessageHandler_new(ChannelManager_as_ChannelMessageHandler(&cm2), std::move(net_msgs2));
562 LDK::IgnoringMessageHandler ignoring_handler2 = IgnoringMessageHandler_new();
563 LDK::CustomMessageHandler custom_msg_handler2 = IgnoringMessageHandler_as_CustomMessageHandler(&ignoring_handler2);
565 random_bytes = keys_source2->get_secure_random_bytes(keys_source2->this_arg);
566 LDK::PeerManager net2 = PeerManager_new(std::move(msg_handler2), node_secret2, &random_bytes.data, logger2, std::move(custom_msg_handler2));
568 // Open a connection!
569 PeersConnection conn(cm1, cm2, net1, net2);
571 // Note that we have to bind the result to a C++ class to make sure it gets free'd
572 LDK::CResult__u832APIErrorZ res = ChannelManager_create_channel(&cm1, ChannelManager_get_our_node_id(&cm2), 40000, 1000, 42, UserConfig_default());
573 assert(res->result_ok);
574 PeerManager_process_events(&net1);
576 LDK::CVec_ChannelDetailsZ new_channels = ChannelManager_list_channels(&cm1);
577 assert(new_channels->datalen == 1);
578 LDK::ChannelCounterparty new_channels_counterparty = ChannelDetails_get_counterparty(&new_channels->data[0]);
579 LDKPublicKey chan_open_pk = ChannelCounterparty_get_node_id(&new_channels_counterparty);
580 assert(!memcmp(chan_open_pk.compressed_form, ChannelManager_get_our_node_id(&cm2).compressed_form, 33));
583 LDK::CVec_ChannelDetailsZ new_channels_2 = ChannelManager_list_channels(&cm2);
584 if (new_channels_2->datalen == 1) {
585 // Sample getting our counterparty's init features (which used to be hard to do without a memory leak):
586 LDK::ChannelCounterparty new_channels_2_counterparty = ChannelDetails_get_counterparty(&new_channels_2->data[0]);
587 const LDK::InitFeatures init_feats = ChannelCounterparty_get_features(&new_channels_2_counterparty);
588 assert(init_feats->inner != NULL);
591 std::this_thread::yield();
594 LDKEventsProvider ev1 = ChannelManager_as_EventsProvider(&cm1);
597 LDKEventHandler handler = { .this_arg = &queue, .handle_event = handle_event, .free = NULL };
598 ev1.process_pending_events(ev1.this_arg, handler);
599 if (queue.events.size() == 1) {
600 assert(queue.events[0]->tag == LDKEvent_FundingGenerationReady);
601 assert(queue.events[0]->funding_generation_ready.user_channel_id == 42);
602 assert(queue.events[0]->funding_generation_ready.channel_value_satoshis == 40000);
603 assert(queue.events[0]->funding_generation_ready.output_script.datalen == 34);
604 assert(!memcmp(queue.events[0]->funding_generation_ready.output_script.data, channel_open_block + 58 + 81, 34));
605 LDKTransaction funding_transaction { .data = const_cast<uint8_t*>(channel_open_block + 81), .datalen = sizeof(channel_open_block) - 81, .data_is_owned = false };
607 LDK::CResult_NoneAPIErrorZ fund_res = ChannelManager_funding_transaction_generated(&cm1, &queue.events[0]->funding_generation_ready.temporary_channel_id.data, funding_transaction);
608 assert(fund_res->result_ok);
611 std::this_thread::yield();
614 // We observe when the funding signed messages have been exchanged by
615 // waiting for two monitors to be registered.
616 assert(num_txs_broadcasted == 0);
617 PeerManager_process_events(&net1);
618 while (num_txs_broadcasted != 1) {
619 std::this_thread::yield();
622 LDK::Listen listener1 = ChannelManager_as_Listen(&cm1);
623 listener1->block_connected(listener1->this_arg, LDKu8slice { .data = channel_open_block, .datalen = sizeof(channel_open_block) }, 1);
625 LDK::Listen listener2 = ChannelManager_as_Listen(&cm2);
626 listener2->block_connected(listener2->this_arg, LDKu8slice { .data = channel_open_block, .datalen = sizeof(channel_open_block) }, 1);
628 LDKCVec_C2Tuple_usizeTransactionZZ txdata { .data = (LDKC2Tuple_usizeTransactionZ*)malloc(sizeof(LDKC2Tuple_usizeTransactionZ)), .datalen = 1 };
629 *txdata.data = C2Tuple_usizeTransactionZ_new(0, LDKTransaction { .data = (uint8_t*)channel_open_block + 81, .datalen = sizeof(channel_open_block) - 81, .data_is_owned = false });
630 mons1.ConnectBlock(&channel_open_header, 1, txdata, broadcast, fee_est);
632 txdata = LDKCVec_C2Tuple_usizeTransactionZZ { .data = (LDKC2Tuple_usizeTransactionZ*)malloc(sizeof(LDKC2Tuple_usizeTransactionZ)), .datalen = 1 };
633 *txdata.data = C2Tuple_usizeTransactionZ_new(0, LDKTransaction { .data = (uint8_t*)channel_open_block + 81, .datalen = sizeof(channel_open_block) - 81, .data_is_owned = false });
634 mons2.ConnectBlock(&channel_open_header, 1, txdata, broadcast, fee_est);
636 listener1->block_connected(listener1->this_arg, LDKu8slice { .data = block_1, .datalen = sizeof(block_1) }, 2);
637 listener2->block_connected(listener2->this_arg, LDKu8slice { .data = block_1, .datalen = sizeof(block_1) }, 2);
638 mons1.ConnectBlock(&header_1, 2, LDKCVec_C2Tuple_usizeTransactionZZ { .data = NULL, .datalen = 0 }, broadcast, fee_est);
639 mons2.ConnectBlock(&header_1, 2, LDKCVec_C2Tuple_usizeTransactionZZ { .data = NULL, .datalen = 0 }, broadcast, fee_est);
641 listener1->block_connected(listener1->this_arg, LDKu8slice { .data = block_2, .datalen = sizeof(block_1) }, 3);
642 listener2->block_connected(listener2->this_arg, LDKu8slice { .data = block_2, .datalen = sizeof(block_1) }, 3);
643 mons1.ConnectBlock(&header_2, 3, LDKCVec_C2Tuple_usizeTransactionZZ { .data = NULL, .datalen = 0 }, broadcast, fee_est);
644 mons2.ConnectBlock(&header_2, 3, LDKCVec_C2Tuple_usizeTransactionZZ { .data = NULL, .datalen = 0 }, broadcast, fee_est);
646 PeerManager_process_events(&net1);
647 PeerManager_process_events(&net2);
649 // Now send funds from 1 to 2!
650 uint64_t channel_scid;
652 LDK::CVec_ChannelDetailsZ outbound_channels = ChannelManager_list_usable_channels(&cm1);
653 if (outbound_channels->datalen == 1) {
654 const LDKChannelDetails *channel = &outbound_channels->data[0];
655 LDK::ChannelCounterparty counterparty = ChannelDetails_get_counterparty(channel);
656 // Note that the channel ID is the same as the channel txid reversed as the output index is 0
657 uint8_t expected_chan_id[32];
658 for (int i = 0; i < 32; i++) { expected_chan_id[i] = channel_open_txid[31-i]; }
659 assert(!memcmp(ChannelDetails_get_channel_id(channel), expected_chan_id, 32));
661 ChannelCounterparty_get_node_id(&counterparty).compressed_form,
662 ChannelManager_get_our_node_id(&cm2).compressed_form, 33));
663 assert(ChannelDetails_get_channel_value_satoshis(channel) == 40000);
664 // We opened the channel with 1000 push_msat:
665 assert(ChannelDetails_get_outbound_capacity_msat(channel) ==
666 40000*1000 - 1000 - 1000 * ChannelCounterparty_get_unspendable_punishment_reserve(&counterparty));
667 int64_t inbound_capacity = ((int64_t)1000) - ChannelCounterparty_get_unspendable_punishment_reserve(&counterparty);
668 if (inbound_capacity < 0) inbound_capacity = 0;
669 assert(ChannelDetails_get_inbound_capacity_msat(channel) == (uint64_t)inbound_capacity);
670 assert(ChannelDetails_get_is_usable(channel));
671 LDK::COption_u64Z scid_opt = ChannelDetails_get_short_channel_id(channel);
672 assert(scid_opt->some);
673 channel_scid = scid_opt->some;
676 std::this_thread::yield();
679 LDKCOption_u64Z min_value = {
680 .tag = LDKCOption_u64Z_Some,
683 LDK::CResult_InvoiceSignOrCreationErrorZ invoice = create_invoice_from_channelmanager(&cm2,
684 KeysManager_as_KeysInterface(&keys2),
685 LDKCurrency_Bitcoin, min_value,
687 .chars = (const uint8_t *)"Invoice Description",
688 .len = strlen("Invoice Description"),
689 .chars_is_owned = false
691 assert(invoice->result_ok);
692 LDKThirtyTwoBytes payment_hash;
693 memcpy(payment_hash.data, Invoice_payment_hash(invoice->contents.result), 32);
696 LDK::CVec_ChannelDetailsZ outbound_channels = ChannelManager_list_usable_channels(&cm1);
697 LDK::Score chan_scorer = LDKScore {
698 .this_arg = NULL, .channel_penalty_msat = get_chan_score, .free = NULL
700 LDK::RouteParameters route_params = RouteParameters_new(PaymentParameters_new(
701 ChannelManager_get_our_node_id(&cm2), LDKInvoiceFeatures {
702 .inner = NULL, .is_owned = false
703 }, Invoice_route_hints(invoice->contents.result), COption_u64Z_none(), 0xffffffff),
704 5000, Invoice_min_final_cltv_expiry(invoice->contents.result));
705 LDK::CResult_RouteLightningErrorZ route = find_route(ChannelManager_get_our_node_id(&cm1), &route_params, &net_graph2, &outbound_channels, logger1, &chan_scorer);
706 assert(route->result_ok);
707 LDK::CVec_CVec_RouteHopZZ paths = Route_get_paths(route->contents.result);
708 assert(paths->datalen == 1);
709 assert(paths->data[0].datalen == 1);
710 assert(!memcmp(RouteHop_get_pubkey(&paths->data[0].data[0]).compressed_form,
711 ChannelManager_get_our_node_id(&cm2).compressed_form, 33));
712 assert(RouteHop_get_short_channel_id(&paths->data[0].data[0]) == channel_scid);
713 LDKThirtyTwoBytes payment_secret;
714 memcpy(payment_secret.data, Invoice_payment_secret(invoice->contents.result), 32);
715 LDK::CResult_PaymentIdPaymentSendFailureZ send_res = ChannelManager_send_payment(&cm1, route->contents.result, payment_hash, payment_secret);
716 assert(send_res->result_ok);
720 PeerManager_process_events(&net1);
721 while (mons_updated != 4) {
722 std::this_thread::yield();
725 // Check that we received the payment!
726 LDK::EventsProvider ev2 = ChannelManager_as_EventsProvider(&cm2);
729 LDKEventHandler handler = { .this_arg = &queue, .handle_event = handle_event, .free = NULL };
730 ev2.process_pending_events(handler);
731 if (queue.events.size() == 1) {
732 assert(queue.events[0]->tag == LDKEvent_PendingHTLCsForwardable);
735 std::this_thread::yield();
737 ChannelManager_process_pending_htlc_forwards(&cm2);
738 PeerManager_process_events(&net2);
741 LDKThirtyTwoBytes payment_preimage;
744 LDKEventHandler handler = { .this_arg = &queue, .handle_event = handle_event, .free = NULL };
745 ev2.process_pending_events(handler);
746 assert(queue.events.size() == 1);
747 assert(queue.events[0]->tag == LDKEvent_PaymentReceived);
748 assert(!memcmp(queue.events[0]->payment_received.payment_hash.data, payment_hash.data, 32));
749 assert(queue.events[0]->payment_received.purpose.tag == LDKPaymentPurpose_InvoicePayment);
750 assert(!memcmp(queue.events[0]->payment_received.purpose.invoice_payment.payment_secret.data,
751 Invoice_payment_secret(invoice->contents.result), 32));
752 assert(queue.events[0]->payment_received.amt == 5000);
753 memcpy(payment_preimage.data, queue.events[0]->payment_received.purpose.invoice_payment.payment_preimage.data, 32);
754 assert(ChannelManager_claim_funds(&cm2, payment_preimage));
756 PeerManager_process_events(&net2);
757 // Wait until we've passed through a full set of monitor updates (ie new preimage + CS/RAA messages)
758 while (mons_updated != 5) {
759 std::this_thread::yield();
763 LDKEventHandler handler = { .this_arg = &queue, .handle_event = handle_event, .free = NULL };
764 while (queue.events.size() < 2)
765 ev1.process_pending_events(ev1.this_arg, handler);
766 assert(queue.events.size() == 2);
767 assert(queue.events[0]->tag == LDKEvent_PaymentSent);
768 assert(!memcmp(queue.events[0]->payment_sent.payment_preimage.data, payment_preimage.data, 32));
769 assert(queue.events[1]->tag == LDKEvent_PaymentPathSuccessful);
770 assert(!memcmp(queue.events[1]->payment_path_successful.payment_hash.data, payment_hash.data, 32));
775 cm1_ser = ChannelManager_write(&cm1);
776 cm2_ser = ChannelManager_write(&cm2);
779 LDK::CVec_ChannelMonitorZ mons_list1 = LDKCVec_ChannelMonitorZ { .data = (LDKChannelMonitor*)malloc(sizeof(LDKChannelMonitor)), .datalen = 1 };
780 assert(mons1.mons.size() == 1);
781 mons_list1->data[0] = *& std::get<1>(mons1.mons[0]); // Note that we need a reference, thus need a raw clone here, which *& does.
782 mons_list1->data[0].is_owned = false; // XXX: God this sucks
783 uint8_t node_seed[32];
784 memset(&node_seed, 0, 32);
785 LDK::KeysManager keys1 = KeysManager_new(&node_seed, 1, 0);
786 LDK::KeysInterface keys_source1 = KeysManager_as_KeysInterface(&keys1);
788 LDK::ChannelManagerReadArgs cm1_args = ChannelManagerReadArgs_new(KeysManager_as_KeysInterface(&keys1), fee_est, mon1, broadcast, logger1, UserConfig_default(), std::move(mons_list1));
789 LDK::CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ cm1_read =
790 C2Tuple_BlockHashChannelManagerZ_read(LDKu8slice { .data = cm1_ser->data, .datalen = cm1_ser -> datalen}, std::move(cm1_args));
791 assert(cm1_read->result_ok);
792 LDK::ChannelManager cm1(std::move(cm1_read->contents.result->b));
794 LDK::CVec_ChannelMonitorZ mons_list2 = LDKCVec_ChannelMonitorZ { .data = (LDKChannelMonitor*)malloc(sizeof(LDKChannelMonitor)), .datalen = 1 };
795 assert(mons2.mons.size() == 1);
796 mons_list2->data[0] = *& std::get<1>(mons2.mons[0]); // Note that we need a reference, thus need a raw clone here, which *& does.
797 mons_list2->data[0].is_owned = false; // XXX: God this sucks
798 memset(&node_seed, 1, 32);
799 LDK::KeysManager keys2 = KeysManager_new(&node_seed, 1, 0);
801 LDK::ChannelManagerReadArgs cm2_args = ChannelManagerReadArgs_new(KeysManager_as_KeysInterface(&keys2), fee_est, mon2, broadcast, logger2, UserConfig_default(), std::move(mons_list2));
802 LDK::CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ cm2_read =
803 C2Tuple_BlockHashChannelManagerZ_read(LDKu8slice { .data = cm2_ser->data, .datalen = cm2_ser -> datalen}, std::move(cm2_args));
804 assert(cm2_read->result_ok);
805 LDK::ChannelManager cm2(std::move(cm2_read->contents.result->b));
807 // Attempt to close the channel...
809 for (int i = 0; i < 32; i++) { chan_id[i] = channel_open_txid[31-i]; }
810 LDK::CResult_NoneAPIErrorZ close_res = ChannelManager_close_channel(&cm1, &chan_id);
811 assert(!close_res->result_ok); // Note that we can't close while disconnected!
813 // Open a connection!
814 LDK::MessageHandler msg_handler1 = MessageHandler_new(ChannelManager_as_ChannelMessageHandler(&cm1), NetGraphMsgHandler_as_RoutingMessageHandler(&graph_msg_handler1));
815 random_bytes = keys_source1->get_secure_random_bytes(keys_source1->this_arg);
817 LDKPublicKey chan_2_node_id = ChannelManager_get_our_node_id(&cm2);
818 LDKCustomMessageHandler custom_msg_handler1 = {
819 .this_arg = &chan_2_node_id,
820 .handle_custom_message = NULL, // We only create custom messages, not handle them
821 .get_and_clear_pending_msg = create_custom_msg,
822 .CustomMessageReader = LDKCustomMessageReader {
824 .read = read_custom_message,
829 LDK::PeerManager net1 = PeerManager_new(std::move(msg_handler1), node_secret1, &random_bytes.data, logger1, std::move(custom_msg_handler1));
831 LDK::MessageHandler msg_handler2 = MessageHandler_new(ChannelManager_as_ChannelMessageHandler(&cm2), NetGraphMsgHandler_as_RoutingMessageHandler(&graph_msg_handler2));
832 CustomMsgQueue peer_2_custom_messages;
833 LDKCustomMessageHandler custom_msg_handler2 = {
834 .this_arg = &peer_2_custom_messages,
835 .handle_custom_message = handle_custom_message,
836 .get_and_clear_pending_msg = never_send_custom_msgs,
837 .CustomMessageReader = LDKCustomMessageReader {
839 .read = read_custom_message,
844 random_bytes = keys_source1->get_secure_random_bytes(keys_source1->this_arg);
845 LDK::PeerManager net2 = PeerManager_new(std::move(msg_handler2), node_secret2, &random_bytes.data, logger2, std::move(custom_msg_handler2));
847 PeersConnection conn(cm1, cm2, net1, net2);
850 // Wait for the channels to be considered up once the reestablish messages are processed
851 LDK::CVec_ChannelDetailsZ outbound_channels = ChannelManager_list_usable_channels(&cm1);
852 if (outbound_channels->datalen == 1) {
857 // Send another payment, this time via the InvoicePayer
858 struct CustomRouteFinderParams router_params = {
860 .graph_ref = &net_graph1,
862 LDKRouter sending_router = {
863 .this_arg = &router_params,
864 .find_route = custom_find_route,
867 LDK::ProbabilisticScorer scorer = ProbabilisticScorer_new(ProbabilisticScoringParameters_default(), &net_graph1);
868 LDK::MultiThreadedLockableScore scorer_mtx = MultiThreadedLockableScore_new(ProbabilisticScorer_as_Score(&scorer));
870 LDKEventHandler handler1 = { .this_arg = &queue1, .handle_event = handle_event, .free = NULL };
871 LDK::InvoicePayer payer = InvoicePayer_new(ChannelManager_as_Payer(&cm1), sending_router, &scorer_mtx, logger1, handler1, RetryAttempts_new(0));
873 LDK::CResult_InvoiceSignOrCreationErrorZ invoice_res2 = create_invoice_from_channelmanager(&cm2,
874 KeysManager_as_KeysInterface(&keys2),
875 LDKCurrency_Bitcoin, COption_u64Z_some(10000),
877 .chars = (const uint8_t *)"Invoice 2 Description",
878 .len = strlen("Invoice 2 Description"),
879 .chars_is_owned = false
881 assert(invoice_res2->result_ok);
882 const LDKInvoice *invoice2 = invoice_res2->contents.result;
883 LDK::CResult_PaymentIdPaymentErrorZ invoice_pay_res = InvoicePayer_pay_invoice(&payer, invoice2);
884 assert(invoice_pay_res->result_ok);
885 PeerManager_process_events(&net1);
887 // Check that we received the payment!
890 LDKEventHandler handler2 = { .this_arg = &queue2, .handle_event = handle_event, .free = NULL };
891 LDK::EventsProvider ev2 = ChannelManager_as_EventsProvider(&cm2);
892 ev2.process_pending_events(handler2);
893 if (queue2.events.size() == 1) {
894 assert(queue2.events[0]->tag == LDKEvent_PendingHTLCsForwardable);
897 std::this_thread::yield();
899 ChannelManager_process_pending_htlc_forwards(&cm2);
900 PeerManager_process_events(&net2);
904 LDKEventHandler handler2 = { .this_arg = &queue2, .handle_event = handle_event, .free = NULL };
905 LDK::EventsProvider ev2 = ChannelManager_as_EventsProvider(&cm2);
906 ev2.process_pending_events(handler2);
907 if (queue2.events.size() == 1) {
908 assert(queue2.events[0]->tag == LDKEvent_PaymentReceived);
909 const struct LDKEvent_LDKPaymentReceived_Body *event_data = &queue2.events[0]->payment_received;
910 assert(!memcmp(event_data->payment_hash.data, Invoice_payment_hash(invoice2), 32));
911 assert(event_data->purpose.tag == LDKPaymentPurpose_InvoicePayment);
912 assert(!memcmp(event_data->purpose.invoice_payment.payment_secret.data,
913 Invoice_payment_secret(invoice2), 32));
914 assert(event_data->amt == 10000);
915 assert(ChannelManager_claim_funds(&cm2, event_data->purpose.invoice_payment.payment_preimage));
918 std::this_thread::yield();
921 while (queue1.events.size() < 2) {
922 PeerManager_process_events(&net2);
923 PeerManager_process_events(&net1);
925 LDK::EventsProvider ev1 = ChannelManager_as_EventsProvider(&cm1);
926 LDK::EventHandler evh1 = InvoicePayer_as_EventHandler(&payer);
927 ev1.process_pending_events(std::move(evh1));
929 assert(queue1.events.size() == 2);
930 assert(queue1.events[0]->tag == LDKEvent_PaymentSent);
931 assert(queue1.events[1]->tag == LDKEvent_PaymentPathSuccessful);
933 // Actually close the channel
934 num_txs_broadcasted = 0;
935 close_res = ChannelManager_close_channel(&cm1, &chan_id);
936 assert(close_res->result_ok);
937 PeerManager_process_events(&net1);
938 while (num_txs_broadcasted != 2) {
939 std::this_thread::yield();
941 LDK::CVec_ChannelDetailsZ chans_after_close1 = ChannelManager_list_channels(&cm1);
942 assert(chans_after_close1->datalen == 0);
943 LDK::CVec_ChannelDetailsZ chans_after_close2 = ChannelManager_list_channels(&cm2);
944 assert(chans_after_close2->datalen == 0);
948 assert(peer_2_custom_messages.msgs.size() != 0);
950 // Few extra random tests:
953 LDKThirtyTwoBytes kdiv_params;
954 memset(&kdiv_params, 43, 32);
955 LDK::InMemorySigner signer = InMemorySigner_new(sk, sk, sk, sk, sk, sk, random_bytes, 42, kdiv_params);