From: Sourabh Nanoti <snanoti@parallelwireless.com>
To: netfilter@vger.kernel.org
Subject: libiptc - 'string' match module - --hex-string
Date: Thu, 19 Jun 2014 18:08:50 +0530 [thread overview]
Message-ID: <2d22d536c6674e70b5d453a2d7a803df@mail.gmail.com> (raw)
Hello,
I wanted to know how to have a rule in iptables that uses the –hex-string
pattern matching module via libiptc.
Following are my xt_string_info structure:
1)
strcpy(strinfo->algo,"bm");
strcpy(strinfo->pattern,"|05010001|\\");
strinfo->from_offset = 32;
strinfo->to_offset = 36;
strinfo->patlen = 11;
When I do iptables -L I get the following:
STRING match "|7c30353031303030317c5c|" ALGO name bm FROM 32 TO 36
2)
strcpy(strinfo->algo,"bm");
strcpy(strinfo->pattern,"05010001\\");
strinfo->from_offset = 32;
strinfo->to_offset = 36;
strinfo->patlen = 9;
When I do iptables -L I get the following:
STRING match "|30353031303030315c|" ALGO name bm FROM 32 TO 36
Both seem incorrect. What am I missing here ?
Thanks
Sourabh
reply other threads:[~2014-06-19 12:38 UTC|newest]
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