From cf35d35b460ddb2dc36d3b9514e1a0543ad0dbff Mon Sep 17 00:00:00 2001
From: Stefan Werfling <stefan.werfling@googlemail.com>
Date: Thu, 25 Jul 2024 09:59:50 +0200
Subject: [PATCH] update vpn build, add node-rohc

---
 vpn/Dockerfile   | 20 ++++++++++++++++++++
 vpn/package.json |  1 +
 vpn/src/main.ts  |  4 ++++
 3 files changed, 25 insertions(+)

diff --git a/vpn/Dockerfile b/vpn/Dockerfile
index 363fd49..8a20acd 100644
--- a/vpn/Dockerfile
+++ b/vpn/Dockerfile
@@ -6,6 +6,23 @@ RUN apt-get update -y
 RUN apt-get upgrade -y
 RUN npm install -g node-gyp
 
+# Install Rohc ---------------------------------------------------------------------------------------------------------
+
+RUN apt-get install autotools-dev -y
+RUN apt-get install automake -y
+RUN apt-get install libtool -y
+RUN apt-get install libpcap-dev -y
+RUN apt-get install libcmocka-dev -y
+
+WORKDIR /opt/
+RUN git clone https://github.com/stefanwerfling/rohc.git
+WORKDIR /opt/rohc/
+RUN ./autogen.sh --prefix=/usr
+RUN make all
+RUN make install
+
+# Create dirs ----------------------------------------------------------------------------------------------------------
+
 RUN mkdir -p /opt/flyingfish
 RUN mkdir -p /opt/flyingfish/schemas
 RUN mkdir -p /opt/flyingfish/core
@@ -57,6 +74,9 @@ RUN npm run build
 WORKDIR /opt/flyingfish/node_modules/tuntap2
 RUN npm run build --loglevel verbose
 
+WORKDIR /opt/flyingfish/node_modules/node-rohc
+RUN npm run build --loglevel verbose
+
 WORKDIR /opt/flyingfish/vpn
 RUN npm run build
 
diff --git a/vpn/package.json b/vpn/package.json
index 06ba3cd..3afc7c9 100644
--- a/vpn/package.json
+++ b/vpn/package.json
@@ -43,6 +43,7 @@
     "got": "^12.5.3",
     "node-schedule": "^2.1.0",
     "tuntap2": "git+https://github.com/stefanwerfling/node-tuntap2.git#ESModule",
+    "node-rohc": "git+https://github.com/stefanwerfling/node-rohc.git",
     "uuid": "^9.0.0",
     "ws": "^8.12.1",
     "vts": "git+https://github.com/OpenSourcePKG/vts.git",
diff --git a/vpn/src/main.ts b/vpn/src/main.ts
index a868bb2..2418b87 100644
--- a/vpn/src/main.ts
+++ b/vpn/src/main.ts
@@ -2,6 +2,7 @@ import * as process from 'process';
 import {Tun} from 'tuntap2';
 import {IP} from './inc/Decode/IP.js';
 import {IPv4} from './inc/Decode/IPv4.js';
+import {Rohc} from 'node-rohc';
 
 /**
  * Main
@@ -9,12 +10,15 @@ import {IPv4} from './inc/Decode/IPv4.js';
 (async(): Promise<void> => {
     try {
         const tun = new Tun();
+        const rohc = new Rohc();
 
         tun.mtu = 1400;
         tun.ipv4 = '4.3.2.1/24';
         tun.on('data', (buf) => {
+            const cmpBuf = rohc.compress(new Uint8Array(buf));
             const ippacket = IP.decodeIP(buf);
             console.log(ippacket);
+            console.log(cmpBuf);
 
             if (ippacket instanceof IPv4) {
                 console.log(ippacket.getSourceAddress().toString());