From 31b0b8e7ad821c87bde36f9f4f3aeb483645c52d Mon Sep 17 00:00:00 2001
From: M66B <marcel@faircode.eu>
Date: Thu, 11 Feb 2016 15:21:55 +0100
Subject: [PATCH] Native warning for urgent TCP

---
 app/src/main/jni/netguard/ip.c  | 2 ++
 app/src/main/jni/netguard/tcp.c | 6 +++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/app/src/main/jni/netguard/ip.c b/app/src/main/jni/netguard/ip.c
index 3a5e288e..3df0c106 100644
--- a/app/src/main/jni/netguard/ip.c
+++ b/app/src/main/jni/netguard/ip.c
@@ -254,6 +254,8 @@ void handle_ip(const struct arguments *args,
             flags[flen++] = 'F';
         if (tcp->rst)
             flags[flen++] = 'R';
+        if (tcp->urg)
+            flags[flen++] = 'U';
 
         // TODO checksum
     }
diff --git a/app/src/main/jni/netguard/tcp.c b/app/src/main/jni/netguard/tcp.c
index a561bb83..7fb34cbf 100644
--- a/app/src/main/jni/netguard/tcp.c
+++ b/app/src/main/jni/netguard/tcp.c
@@ -380,10 +380,14 @@ jboolean handle_tcp(const struct arguments *args,
         flags[flen++] = 'S';
     if (tcphdr->ack)
         flags[flen++] = 'A';
+    if (tcphdr->psh)
+        flags[flen++] = 'P';
     if (tcphdr->fin)
         flags[flen++] = 'F';
     if (tcphdr->rst)
         flags[flen++] = 'R';
+    if (tcphdr->urg)
+        flags[flen++] = 'U';
     flags[flen] = 0;
 
     char packet[250];
@@ -395,7 +399,7 @@ jboolean handle_tcp(const struct arguments *args,
             ntohl(tcphdr->seq) - (cur == NULL ? 0 : cur->remote_start),
             tcphdr->ack ? ntohl(tcphdr->ack_seq) - (cur == NULL ? 0 : cur->local_start) : 0,
             datalen, ntohs(tcphdr->window), uid);
-    log_android(ANDROID_LOG_DEBUG, packet);
+    log_android(tcphdr->urg ? ANDROID_LOG_WARN : ANDROID_LOG_DEBUG, packet);
 
     // Check session
     if (cur == NULL) {