Re: snort sFsnortPakcet header file to count TCP, ICMP and UDP packets

[Amtul Saboor <saboor.amtul () gmail com>]

Thank you Steven , I have looked at this but can you guide me about how to
write a piece of code for knowing whether the incoming packet belongs to
TCP , UDP or ICMP protocol .

Kind Regards


On Thu, Jun 19, 2014 at 11:35 PM, Steven Sturges <
steve.sturges () sourcefire com> wrote:

> The data you're looking for is within the SFSnortPacket struct...
>
> typedef struct _SFSnortPacket
> {
> ...
>      const TCPHeader *tcp_header, *orig_tcp_header;
>      const UDPHeader *udp_header, *orig_udp_header;
>      const UDPHeader *inner_udph;   /* if Teredo + UDP, this will be the
> inner UDP header */
>      const UDPHeader *outer_udph;   /* if Teredo + UDP, this will be the
> outer UDP header */
>      const ICMPHeader *icmp_header, *orig_icmp_header;
> ...
>
>
> On 6/19/14, 1:09 PM, Amtul Saboor wrote:
>
> > Hello
> >
> > I am trying to make some changes in snort sample prperocessor dpx , i
> > have read the following information from snort manual online:
> >
> >
> >     /4.1.4 SFSnortPacket/
> >
> > /*The SFSnortPacket structure mirrors the snort Packet structure and
> > provides access to all of the data contained in a given packet.*/
> >
> > /*It and the data structures it incorporates are defined in
> >
> > sf_snort_packet.h. Additional data structures may be defined to
> > reference other protocol fields. Check the header file for the current
> > definitions.*/
> >
> > _Source: http://manual.snort.org/node38.html
> > <http://manual.snort.org/node38.html>_
> >
> >
> >  I want to output the average number of TCP Syn, UDP and ICMP PAckets
> > > > > received per second, I  have gone through this file sf_snort_packet.h , but
> > > > > i am unable to
> > > > locate the exact data structure that deals with incoming TCP Syn, ICMP
> > and UDP packets. I just need these3 data structures to make the desired
> > variation.
> >
> > Any one would be appreciated. Thanks
> >
> >
> > Regards
> > Amtul
> >
> >
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-- 
*Amtul Saboor*

*MS (Information Security)*

*Military College of Signals, National University of Science & Technology,
Rawalpindi*

*Pakistan*

------------------------------------------------------------------------------
HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions
Find What Matters Most in Your Big Data with HPCC Systems
Open Source. Fast. Scalable. Simple. Ideal for Dirty Data.
Leverages Graph Analysis for Fast Processing & Easy Data Exploration
http://p.sf.net/sfu/hpccsystems

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