feat(controller, orchestratror): Add bitcoin-seed command

CHANGELOG.md

@@ -7,9 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+- ORCHESTRATOR: We incorrectly passed the `--mainnet` flag to the `asb` binary but it is the default for the asb.
+- CONTROLLER: Add a `bitcoin-seed` command to the controller. You can use it to export the descriptor of the internal Bitcoin wallet.
+
 ## [3.0.0-beta.10] - 2025-08-14
 
-GUI + CLI + ASB: Fix an issue where the Monero RPC pool would fail to build TLS handshakes over Tor
+- GUI + CLI + ASB: Fix an issue where the Monero RPC pool would fail to build TLS handshakes over Tor
 
 ## [3.0.0-beta.9] - 2025-08-12
 

justfile

@@ -69,7 +69,7 @@ swap:
 
 # Run the asb on testnet
 asb-testnet:
-	cargo run -p swap-asb --bin asb -- --trace --testnet start
+	cargo run -p swap-asb --bin asb -- --trace --testnet start --rpc-bind-port 9944 --rpc-bind-host 0.0.0.0
 
 # Updates our submodules (currently only Monero C++ codebase)
 update_submodules:

swap-controller-api/src/lib.rs

@@ -8,6 +8,11 @@ pub struct BitcoinBalanceResponse {
     pub balance: bitcoin::Amount,
 }
 
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct BitcoinSeedResponse {
+    pub descriptor: String,
+}
+
 #[derive(Serialize, Deserialize, Debug, Clone)]
 pub struct MoneroBalanceResponse {
     pub balance: u64,
@@ -46,6 +51,8 @@ pub trait AsbApi {
     async fn check_connection(&self) -> Result<(), ErrorObjectOwned>;
     #[method(name = "bitcoin_balance")]
     async fn bitcoin_balance(&self) -> Result<BitcoinBalanceResponse, ErrorObjectOwned>;
+    #[method(name = "bitcoin_seed")]
+    async fn bitcoin_seed(&self) -> Result<BitcoinSeedResponse, ErrorObjectOwned>;
     #[method(name = "monero_balance")]
     async fn monero_balance(&self) -> Result<MoneroBalanceResponse, ErrorObjectOwned>;
     #[method(name = "monero_address")]

swap-controller/src/cli.rs

@@ -19,6 +19,8 @@ pub enum Cmd {
     CheckConnection,
     /// Get Bitcoin balance
     BitcoinBalance,
+    /// Get Bitcoin descriptor containing private keys
+    BitcoinSeed,
     /// Get Monero balance
     MoneroBalance,
     /// Get Monero wallet address

swap-controller/src/main.rs

@@ -80,6 +80,10 @@ async fn dispatch(cmd: Cmd, client: impl AsbApiClient) -> anyhow::Result<()> {
                 }
             }
         }
+        Cmd::BitcoinSeed => {
+            let response = client.bitcoin_seed().await?;
+            println!("Descriptor (BIP-0382) containing the private keys of the internal Bitcoin wallet: \n{}", response.descriptor);
+        }
     }
     Ok(())
 }

swap-orchestrator/src/asb.rs

@@ -18,7 +18,9 @@ impl Network {
 impl IntoFlag for Network {
     fn to_flag(self) -> Flag {
         match self.0 {
-            (monero::Network::Mainnet, bitcoin::Network::Bitcoin) => flag!("--mainnet"),
+            // Mainnet is the default for the asb
+            (monero::Network::Mainnet, bitcoin::Network::Bitcoin) => Flag(None),
+            // Testnet requires the --testnet flag
             (monero::Network::Stagenet, bitcoin::Network::Testnet) => flag!("--testnet"),
             _ => panic!("Only either Mainnet Bitcoin & Mainnet Monero or Testnet Bitcoin & Stagenet Monero are supported"),
         }

swap/src/asb/rpc/server.rs

@@ -7,8 +7,8 @@ use jsonrpsee::types::error::ErrorCode;
 use jsonrpsee::types::ErrorObjectOwned;
 use std::sync::Arc;
 use swap_controller_api::{
-    ActiveConnectionsResponse, AsbApiServer, BitcoinBalanceResponse, MoneroAddressResponse,
+    ActiveConnectionsResponse, AsbApiServer, BitcoinBalanceResponse, BitcoinSeedResponse,
-    MoneroBalanceResponse, MoneroSeedResponse, MultiaddressesResponse, Swap,
+    MoneroAddressResponse, MoneroBalanceResponse, MoneroSeedResponse, MultiaddressesResponse, Swap,
 };
 use tokio_util::task::AbortOnDropHandle;
 
@@ -72,6 +72,20 @@ impl AsbApiServer for RpcImpl {
         Ok(BitcoinBalanceResponse { balance })
     }
 
+    async fn bitcoin_seed(&self) -> Result<BitcoinSeedResponse, ErrorObjectOwned> {
+        static EXPORT_ROLE: &str = "asb";
+
+        let wallet_export = self
+            .bitcoin_wallet
+            .wallet_export(EXPORT_ROLE)
+            .await
+            .into_json_rpc_result()?;
+
+        Ok(BitcoinSeedResponse {
+            descriptor: format!("{}", wallet_export.descriptor()),
+        })
+    }
+
     async fn monero_balance(&self) -> Result<MoneroBalanceResponse, ErrorObjectOwned> {
         let wallet = self.monero_wallet.main_wallet().await;
         let balance = wallet.total_balance().await;