Hi Charles,
1. tcp_dport == 3200:7 is wrong
Use tcp_dport:7 = 3200
2. To see bit manipulation in tcng:
/usr/lib/tcng/include/
fields4.tc:field tcp_SYN = (tcp_hdr[13].b >> 1) & 1; /* SYN */
idiomatic.tc:field ip_tos_throughput = (ip_tos >> 3) & 1;
- Jacob
Message: 7
From: "lartc@xxxxxxxxxxxxxxxxxxx" <lartc@xxxxxxxxxxxxxxxxxxx>
To: LARTC list <lartc@xxxxxxxxxxxxxxx>
Date: Tue, 02 Dec 2003 18:36:13 +0100
Subject: port masks in tcng
hi all,
hopefully a simple question:
i would like to have a range of ports from 3200 to 3299, so i did the
standard calculation
65535 - ( 3299 - 3200 ) = 65436 = 0xff9c
what is the syntax for a hex mask in tcng?
for the moment, i have
<snip>
(<$high>) if tcp_dport == 3200:7;
<snip>
which gives me a wee bit too much
thanks!
cheers
charles
_______________________________________________
LARTC mailing list / LARTC@xxxxxxxxxxxxxxx
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
