bootstrap fixes

src/miner/fairness.rs

@@ -1,3 +1,4 @@
+use crate::common::types::BLOCKS_PER_HALVING;
 use crate::log::info;
 use crate::miner::flag::{is_mining_stop_requested, is_normal_mode, set_mining_state, MiningState};
 use crate::records::block_height::get_block_height::get_height;
@@ -8,12 +9,12 @@ use crate::sleep;
 use crate::Duration;
 
 pub async fn fairness_difficulty(block_height: u32, miner_wallet: &str) -> bool {
-    // The fairness window tightens once peri tenth of the first halving interval.
-    let current_interval = (block_height / 960000) + 1;
+    // The fairness window tightens once per completed halving interval.
+    let current_interval = block_height / BLOCKS_PER_HALVING;
 
     // Start by allowing ten consecutive blocks, then reduce the
     // allowance over time without ever dropping below one.
-    let max_consecutive_blocks = u8::max(10 - current_interval as u8, 1) as u32;
+    let max_consecutive_blocks = 10_u32.saturating_sub(current_interval).max(1);
 
     // Only the trailing fairness window needs to be checked.
     let start_block = block_height.saturating_sub(max_consecutive_blocks);

src/records/memory/connections.rs

@@ -166,7 +166,7 @@ async fn retry_dropped_outgoing(ip: String, port: u16) {
                 wallet: context.wallet.clone(),
                 db: context.db.clone(),
                 map: context.map.clone(),
-                first: false,
+                first: peer_connection_count().await == 0,
             };
 
             match connect_and_handshake(connect).await {
@@ -312,7 +312,9 @@ impl Connection {
             });
         }
         if let Some(connection_info) = removed.as_ref() {
-            let client_role = ClientType::from_bytes(&connection_info.client_type)
+            let client_type = ClientType::from_bytes(&connection_info.client_type);
+            if client_type != Some(ClientType::Client) {
+                let client_role = client_type
                     .map(|client_type| client_type.as_str())
                     .unwrap_or("unknown");
                 info!(
@@ -323,6 +325,7 @@ impl Connection {
                     port
                 );
             }
+        }
         removed
     }
 
@@ -927,6 +930,37 @@ pub async fn peer_is_operational(key: &str) -> bool {
         .unwrap_or(false)
 }
 
+pub async fn peer_accepts_live_relay(key: &str) -> bool {
+    let Some((ip, port)) = split_ip_port_key(key) else {
+        return false;
+    };
+    let ip_bytes = ip_to_binary(&ip);
+
+    CONNECTIONS
+        .read()
+        .await
+        .as_ref()
+        .and_then(|connection| {
+            connection
+                .connection_map
+                .iter()
+                .find_map(|(connection_key, info)| {
+                    if connection_key.ip == ip_bytes
+                        && connection_key.port == port
+                        && ClientType::from_bytes(&info.client_type) == Some(ClientType::Miner)
+                    {
+                        Some(
+                            info.ready
+                                || (info.wallet_registry_synced && info.network_map_synced),
+                        )
+                    } else {
+                        None
+                    }
+                })
+        })
+        .unwrap_or(false)
+}
+
 pub async fn live_miner_peer_streams() -> Vec<(String, Arc<Mutex<TcpStream>>)> {
     // Snapshot consensus and recovery checks vote only across currently
     // connected miner peers, regardless of incoming/outgoing direction.

src/rpc/client/genesis_compat.rs

@@ -28,7 +28,11 @@ pub async fn ensure_compatible_genesis(
         match request_block_hash_at_height(stream, map, connections_key.clone(), 0).await {
             Ok(hash) => Some(hash),
             Err(err) if err.contains("Block 0 not found") => None,
-            Err(err) if remote_height == 0 && err.contains("Node is syncing") => None,
+            Err(err) if err.contains("Node is syncing") => {
+                return Err(format!(
+                    "remote peer {connections_key} is syncing; cannot verify genesis before sync"
+                ));
+            }
             Err(err) => {
                 return Err(format!(
                     "remote genesis compatibility check failed for {connections_key}: {err}"

src/rpc/client/syncing.rs

@@ -7,6 +7,7 @@ use crate::records::block_height::get_block_height::get_height;
 use crate::records::memory::response_channels::reserve_entry_with_context;
 use crate::records::memory::response_channels::Command;
 use crate::records::memory::torrent_status::{set_torrent_status, TorrentStatus};
+use crate::rpc::client::genesis_compat::ensure_compatible_genesis;
 use crate::rpc::command_maps::RPC_TORRENT_BY_HEIGHT;
 use crate::sled::Db;
 use crate::timeout;
@@ -159,6 +160,15 @@ pub async fn node_syncing(
     wallet: Arc<Wallet>,
     connections_key: String,
 ) -> io::Result<()> {
+    ensure_compatible_genesis(
+        stream.clone(),
+        map.clone(),
+        connections_key.clone(),
+        remote_height,
+    )
+    .await
+    .map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err))?;
+
     let mut local_height = get_height(db);
     // Normalize the local height into the next expected block height
     // so sync requests start at the first missing block.

src/rpc/commands/block_hash_at_height.rs

@@ -4,7 +4,7 @@ use crate::records::unpack_block::unpack_header::load_block_header;
 use crate::rpc::responses::RpcResponse;
 
 pub async fn request_block_hash_at_height(block_number: u32) -> RpcResponse {
-    if is_syncing_mode() {
+    if is_syncing_mode() && block_number != 0 {
         return RpcResponse::Binary(b"error: Node is syncing".to_vec());
     }
 

src/rpc/server/command_loop_state.rs

@@ -1,9 +1,10 @@
 use crate::io::ErrorKind;
 use crate::log::warn;
-use crate::records::memory::connections::get_client_type_from_memory;
+use crate::records::memory::connections::{get_client_type_from_memory, peer_accepts_live_relay};
 use crate::records::memory::enums::ClientType;
 use crate::rpc::command_maps::{
-    RPC_BLOCK_HEIGHT, RPC_BLOCK_PIECE, RPC_REPLY, RPC_TORRENT_BY_HEIGHT,
+    RPC_BLOCK_HEIGHT, RPC_BLOCK_PIECE, RPC_NETWORK_MONITOR_ADD, RPC_NETWORK_MONITOR_REMOVE,
+    RPC_REPLY, RPC_SUBMIT_TORRENT, RPC_SUBMIT_TRANSACTION, RPC_TORRENT_BY_HEIGHT,
 };
 use crate::rpc::server::connection_memory_manager::remove_stream_from_memory;
 use crate::rpc::server::flood_protection::check_request_frequency_with_client_type;
@@ -72,6 +73,16 @@ fn skip_flood_check(command: u8, client_type: ClientType) -> bool {
         )
 }
 
+fn requires_operational_miner(command: u8) -> bool {
+    matches!(
+        command,
+        RPC_SUBMIT_TRANSACTION
+            | RPC_SUBMIT_TORRENT
+            | RPC_NETWORK_MONITOR_ADD
+            | RPC_NETWORK_MONITOR_REMOVE
+    )
+}
+
 pub async fn next_incoming_command(
     stream_locked: Arc<Mutex<TcpStream>>,
     db: &Db,
@@ -91,6 +102,17 @@ pub async fn next_incoming_command(
         .await
         .unwrap_or(ClientType::Miner);
 
+    if client_type == ClientType::Miner
+        && requires_operational_miner(command)
+        && !peer_accepts_live_relay(connections_key).await
+    {
+        warn!(
+            "[rpc] closing unsynced miner peer that sent relay command: peer={connections_key} cmd={command}"
+        );
+        remove_stream_from_memory(&stream_locked).await;
+        return Ok(None);
+    }
+
     // Replies and miner sync traffic belong to expected node-to-node
     // maintenance paths. All other commands still count against flood
     // protection, including non-sync commands from miners.

src/rpc/server/handshake.rs

@@ -77,9 +77,11 @@ async fn sync_incoming_peer_before_operational(
 
     if local_genesis_exists && remote_height < local_height {
         warn!(
-            "[startup] incoming peer is behind local chain and will remain non-operational until it catches up: local_height={local_height} remote_height={remote_height}"
+            "[startup] incoming peer is behind local chain and must reconnect through its own sync path: local_height={local_height} remote_height={remote_height}"
         );
-        return Ok(false);
+        return Err(format!(
+            "incoming peer is behind local chain: local_height={local_height} remote_height={remote_height}"
+        ));
     }
 
     if !local_genesis_exists || remote_height > local_height + 10 {

src/startup/connections.rs

@@ -4,7 +4,7 @@ use crate::miner::flag::{
     clear_mining_stop_request, is_normal_mode, set_mining_state, set_node_mode, MiningState,
     NodeMode,
 };
-use crate::records::memory::connections::{miner_connection_count, peer_connection_count};
+use crate::records::memory::connections::peer_connection_count;
 use crate::records::memory::response_channels::Command;
 use crate::rpc::client::handshake::connect_and_handshake;
 use crate::rpc::client::structs::Connect;
@@ -137,10 +137,6 @@ pub fn spawn_isolated_bootstrap_recovery(db: Db, wallet: Arc<Wallet>, map: Arc<M
                 continue;
             }
 
-            if miner_connection_count().await > 0 {
-                continue;
-            }
-
             info!("[reconnect] no operational peers remain; retrying bootstrap recovery");
             match attempt_bootstrap_connections(
                 db.clone(),