From: Laurent Mazet <mazet@softndesign.org>
Date: Sun, 8 Jun 2025 23:02:50 +0000 (+0200)
Subject: closer...
X-Git-Tag: v1.0~14
X-Git-Url: https://secure.softndesign.org/git/?a=commitdiff_plain;h=9b600023e35d312798e9aef627c2659b09390482;p=ulvpn.git

closer...
---

diff --git a/encrypted_data.eth b/encrypted_data.eth
index 0427538..d943c2b 100644
--- a/encrypted_data.eth
+++ b/encrypted_data.eth
@@ -1 +1 @@
-T0809 MSG=1 DATA=00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:45:00:00:2f:91:d7:40:00:40:11:93:e1:0a:02:00:01:0a:02:01:01:8e:bb:0b:b8:00:1b:53:3b:54:68:69:73:20:69:73:20:61:20:6c:6f:6e:67:20:54:45:53:0a:01:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00
+T0809 MSG=1 DATA=00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:45:00:00:3b:bf:14:40:00:40:11:66:98:0a:02:00:01:0a:02:01:01:8f:6f:0b:b8:00:27:e4:7f:54:45:53:54:3a:20:54:68:69:73:20:69:73:20:61:20:76:65:72:79:20:6c:6f:6e:67:20:74:65:78:74:0a:00:00:00:00:05:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00
diff --git a/test.sh b/test.sh
index 90498ed..9fa3526 100755
--- a/test.sh
+++ b/test.sh
@@ -17,7 +17,7 @@ rm -f in.log out.log
                    -t $DEV://00:00:00:00:00:00/0829 \
                    -l out.log | \
             awk '{print "CM R->B [rx]:", $0}';
-            grep 54:45:53:54 out.log || break
+            grep 54:45:53:54 out.log && break
     done;
 
     $MOREP -v 4 \
@@ -33,7 +33,7 @@ rm -f in.log out.log
                    -t $DEV://00:00:00:00:00:00/0809 \
                    -l in.log | \
             awk '{print "CM B->R [rx]:", $0}';
-            grep 54:45:53:54 in.log || break
+            grep 54:45:53:54 in.log && break
     done;
 
     $MOREP -v 4 \
@@ -43,11 +43,12 @@ rm -f in.log out.log
        awk '{print "CM B->R [tx]:", $0}';
 } &
 pid=$!
+trap "kill -9 $pid; ip addr del dev eth0 10.1.0.1/24 && ip link del eth0 type dummy || echo no need to remove eth0;" 0 1 2 15
 
 { sleep 1; echo "TEST: This is a very long text" | nc -uq0 10.2.1.1 3000; } &
 
-$VPN \
 #gdb $VPN --args $VPN \
+$VPN \
   -v 5 -V 4 \
   -d tun://tun0:$MTU \
   -l tun://10.2.0.1 -r tun://10.2.1.0 \
diff --git a/ulvpn.c b/ulvpn.c
index be29eac..1655e6b 100644
--- a/ulvpn.c
+++ b/ulvpn.c
@@ -45,7 +45,7 @@ char *cmlocred = NULL;
 char *cmremred = NULL;
 
 int seqcheck = 0;
-int timeout = 100; /* ms */
+int timeout = 900; /* ms */
 int stop = 0;
 
 #define BUFMAX 4096
@@ -125,8 +125,8 @@ int encrypt (uint8_t *buffer, int len, cm_t *cm)
     uint8_t msgtype = 0;
     int in_len = 0;
     int seqrx = MOREP_Receive_timeout (cm->rxblack, &msgtype, in, &in_len, timeout);
-    VERBOSE (ulvpn, DEBUG, PRINTF ("received %d bytes from MOREP CM black\n", in_len));
-    if ((msgtype != 0x01) || (in_len != out_len + 16) || ((seqcheck) && (seqtx != seqrx))) {
+    VERBOSE (ulvpn, DEBUG, PRINTF ("received msg %d, seq %d/%d, length %d/%d bytes from MOREP CM black\n", msgtype, seqtx, seqrx, out_len, in_len));
+    if ((msgtype != 0x01) || (in_len != out_len + 12 + 16) || ((seqcheck) && (seqtx != seqrx))) {
         VERBOSE (ulvpn, WARNING, PRINTF ("non-coherent encrypted message\n"));
         return 0;
     }
@@ -200,8 +200,9 @@ int decrypt (uint8_t *buffer, int len, cm_t *cm)
     uint8_t msgtype = 0;
     int in_len = 0;
     int seqrx = MOREP_Receive_timeout (cm->rxred, &msgtype, in, &in_len, timeout);
+    VERBOSE (ulvpn, DEBUG, PRINTF ("received msg %d, seq %d/%d, length %d/%d bytes from MOREP CM black\n", msgtype, seqtx, seqrx, out_len, in_len));
     VERBOSE (ulvpn, DEBUG, PRINTF ("received %d bytes from MOREP CM red\n", in_len));
-    if ((msgtype != 0x03) || (in_len != out_len - 16) || ((seqcheck) && (seqtx != seqrx))) {
+    if ((msgtype != 0x03) || (in_len != out_len - 12 - 16) || ((seqcheck) && (seqtx != seqrx))) {
         VERBOSE (ulvpn, WARNING, PRINTF ("non-coherent decrypted message\n"));
         return 0;
     }