Add native local port forwarding

src/protocol.rs

@@ -30,6 +30,13 @@ pub enum PacketKind {
     NativeServerHello = 15,
     NativeUserAuth = 16,
     NativeAuthOk = 17,
+    StreamOpen = 18,
+    StreamOpenOk = 19,
+    StreamOpenReject = 20,
+    StreamData = 21,
+    StreamWindowAdjust = 22,
+    StreamEof = 23,
+    StreamClose = 24,
 }
 
 impl TryFrom<u8> for PacketKind {
@@ -54,6 +61,13 @@ impl TryFrom<u8> for PacketKind {
             15 => Self::NativeServerHello,
             16 => Self::NativeUserAuth,
             17 => Self::NativeAuthOk,
+            18 => Self::StreamOpen,
+            19 => Self::StreamOpenOk,
+            20 => Self::StreamOpenReject,
+            21 => Self::StreamData,
+            22 => Self::StreamWindowAdjust,
+            23 => Self::StreamEof,
+            24 => Self::StreamClose,
             _ => bail!("unknown packet kind {value}"),
         })
     }
@@ -278,6 +292,46 @@ pub struct Resize {
     pub rows: u16,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct StreamOpen {
+    pub stream_id: u64,
+    pub target_host: String,
+    pub target_port: u16,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct StreamOpenOk {
+    pub stream_id: u64,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct StreamOpenReject {
+    pub stream_id: u64,
+    pub reason: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct StreamData {
+    pub stream_id: u64,
+    pub bytes: Vec<u8>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct StreamWindowAdjust {
+    pub stream_id: u64,
+    pub bytes: u32,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct StreamEof {
+    pub stream_id: u64,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct StreamClose {
+    pub stream_id: u64,
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct Frame {
     pub session: String,