avoid panic on smoltcp socket accept (#1272)

.github/workflows/core.yml

@@ -154,14 +154,13 @@ jobs:
           name: easytier-web-dashboard
           path: easytier-web/frontend/dist/
 
-      - name: Cargo cache
+      - uses: Swatinem/rust-cache@v2
         if: ${{ ! endsWith(matrix.TARGET, 'freebsd') }}
-        uses: actions/cache@v4
         with:
-          path: |
-            ~/.cargo
-            ./target
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          # The prefix cache key, this can be changed to start a new cache manually.
+          # default: "v0-rust"
+          prefix-key: ""
+
 
       - name: Setup protoc
         uses: arduino/setup-protoc@v3

.github/workflows/gui.yml

@@ -151,13 +151,11 @@ jobs:
           pnpm -r install
           pnpm -r build
 
-      - name: Cargo cache
-        uses: actions/cache@v4
+      - uses: Swatinem/rust-cache@v2
         with:
-          path: |
-            ~/.cargo
-            ./target
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          # The prefix cache key, this can be changed to start a new cache manually.
+          # default: "v0-rust"
+          prefix-key: ""
 
       - name: Install rust target
         run: bash ./.github/workflows/install_rust.sh

.github/workflows/mobile.yml

@@ -98,13 +98,11 @@ jobs:
           pnpm -r install
           pnpm -r build
 
-      - name: Cargo cache
-        uses: actions/cache@v4
+      - uses: Swatinem/rust-cache@v2
         with:
-          path: |
-            ~/.cargo
-            ./target
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          # The prefix cache key, this can be changed to start a new cache manually.
+          # default: "v0-rust"
+          prefix-key: ""
 
       - name: Install rust target
         run: |

easytier/src/gateway/tokio_smoltcp/socket.rs

@@ -156,11 +156,14 @@ impl TcpStream {
         }
         let (peer_addr, local_addr) = {
             let socket = reactor.get_socket::<tcp::Socket>(*listener.handle);
-            (
-                // should be Some, because the state is Established
-                ep2sa(&socket.remote_endpoint().unwrap()),
-                ep2sa(&socket.local_endpoint().unwrap()),
-            )
+            match (socket.remote_endpoint(), socket.local_endpoint()) {
+                (Some(remote_endpoint), Some(local_endpoint)) => (
+                    // should be Some, because the state is Established
+                    ep2sa(&remote_endpoint),
+                    ep2sa(&local_endpoint),
+                ),
+                _ => return Err(io::ErrorKind::NotConnected.into()),
+            }
         };
 
         Ok((