fix

Dockerfile

@@ -4,7 +4,7 @@ RUN apk --no-cache add build-base cmake linux-headers boost-dev boost-static
 WORKDIR /usr/src/app
 COPY CMakeLists.txt .
 COPY src src
-RUN cmake -DCMAKE_BUILD_TYPE=Debug . && cmake --build .
+RUN cmake -DCMAKE_BUILD_TYPE=Release . && cmake --build .
 
 FROM alpine
 RUN apk --no-cache add libgcc libstdc++ bash iproute2 iptables ipset netcat-openbsd

src/main.cpp

@@ -105,7 +105,7 @@ void outbound(int raw, int tun) {
     meta->reversed = 0;
     auto inner = buffer + sizeof(Meta);
     size_t packet_length;
-    while ((packet_length = read(tun, inner, sizeof(buffer) + sizeof(Meta))) >= 0) {
+    while ((packet_length = read(tun, inner, sizeof(buffer) - sizeof(Meta))) >= 0) {
 //        std::cout << "sendto: " << inet_ntoa(remote_addr.sin_addr) << std::endl;
         if (!remote_addr.sin_addr.s_addr) continue;
         localSecret->encrypt(inner, packet_length);