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-rw-r--r--p2p/src/discovery/refresh.rs4
-rw-r--r--p2p/src/io_codec.rs36
-rw-r--r--p2p/src/message.rs2
3 files changed, 36 insertions, 6 deletions
diff --git a/p2p/src/discovery/refresh.rs b/p2p/src/discovery/refresh.rs
index 1ced266..b9b7bae 100644
--- a/p2p/src/discovery/refresh.rs
+++ b/p2p/src/discovery/refresh.rs
@@ -270,11 +270,11 @@ impl RefreshService {
let ping_msg = PingMsg(nonce);
let buffer = encode(&ping_msg)?;
- conn.send(&buffer).await?;
+ conn.write(&buffer).await?;
let buf = &mut [0; PINGMSG_SIZE];
let t = Duration::from_secs(self.config.refresh_response_timeout);
- timeout(t, conn.recv(buf)).await??;
+ timeout(t, conn.read(buf)).await??;
let (pong_msg, _) = decode::<PongMsg>(buf)?;
diff --git a/p2p/src/io_codec.rs b/p2p/src/io_codec.rs
index 4515832..ea62666 100644
--- a/p2p/src/io_codec.rs
+++ b/p2p/src/io_codec.rs
@@ -38,7 +38,7 @@ impl IOCodec {
pub async fn read(&self) -> Result<NetMsg> {
// Read 6 bytes to get the header of the incoming message
let mut buf = [0; MSG_HEADER_SIZE];
- self.conn.recv(&mut buf).await?;
+ self.read_exact(&mut buf).await?;
// Decode the header from bytes to NetMsgHeader
let (header, _) = decode::<NetMsgHeader>(&buf)?;
@@ -51,7 +51,7 @@ impl IOCodec {
// Create a buffer to hold the message based on its length
let mut payload = vec![0; header.payload_size as usize];
- self.conn.recv(&mut payload).await?;
+ self.read_exact(&mut payload).await?;
Ok(NetMsg { header, payload })
}
@@ -77,7 +77,7 @@ impl IOCodec {
// Append the message payload to the buffer
buffer.extend_from_slice(&payload);
- self.conn.send(&buffer).await?;
+ self.write_all(&buffer).await?;
Ok(())
}
@@ -99,4 +99,34 @@ impl IOCodec {
.await
.map_err(|_| NetError::Timeout)?
}
+
+ /// Reads the exact number of bytes required to fill `buf`.
+ async fn read_exact(&self, mut buf: &mut [u8]) -> Result<()> {
+ while !buf.is_empty() {
+ let n = self.conn.read(buf).await?;
+ let (_, rest) = std::mem::take(&mut buf).split_at_mut(n);
+ buf = rest;
+
+ if n == 0 {
+ return Err(Error::IO(std::io::ErrorKind::UnexpectedEof.into()));
+ }
+ }
+
+ Ok(())
+ }
+
+ /// Writes an entire buffer into the connection.
+ async fn write_all(&self, mut buf: &[u8]) -> Result<()> {
+ while !buf.is_empty() {
+ let n = self.conn.write(buf).await?;
+ let (_, rest) = std::mem::take(&mut buf).split_at(n);
+ buf = rest;
+
+ if n == 0 {
+ return Err(Error::IO(std::io::ErrorKind::UnexpectedEof.into()));
+ }
+ }
+
+ Ok(())
+ }
}
diff --git a/p2p/src/message.rs b/p2p/src/message.rs
index d3691c2..9e73809 100644
--- a/p2p/src/message.rs
+++ b/p2p/src/message.rs
@@ -10,7 +10,7 @@ use crate::{protocol::ProtocolID, routing_table::Entry, utils::VersionInt, PeerI
pub const MSG_HEADER_SIZE: usize = 6;
/// The maximum allowed size for a message in bytes.
-pub const MAX_ALLOWED_MSG_SIZE: u32 = 1000000;
+pub const MAX_ALLOWED_MSG_SIZE: u32 = 1024 * 1024; // 1MB
/// Defines the main message in the karyon p2p network.
///