Snort mailing list archives

Re: How to log an IP address in dpx.c ?


From: Emiliano Fausto <emiliano.fausto () gmail com>
Date: Thu, 24 Jul 2014 13:49:14 -0300

Hello Luc,

I've tried this testing and it works fine:

iphdt = iphd.ip_src;unsigned char* ipsrcp_test = (unsigned char*)
&iphdt.ip;unsigned int src_ip_test = (*ipsrcp_test << 24) +
(*(ipsrcp_test+1) << 16) + (*(ipsrcp_test+2) << 8) +
*(ipsrcp_test+3);unsigned short int src_port_test = p->src_port;
iphdt = iphd.ip_dst;unsigned char* ipdstp_test = (unsigned char*)
&iphdt.ip;unsigned int dst_ip_test = (*ipdstp_test << 24) +
(*(ipdstp_test+1) << 16) + (*(ipdstp_test+2) << 8) +
*(ipdstp_test+3);unsigned short int dst_port_test = p->dst_port;
_dpd.logMsg("\tTest: ipsrc%u portsrc%u ipdst%u
portDst%u\n",src_ip_test,src_port_test, dst_ip_test,dst_port_test);


Hope it helps,
Emiliano.


2014-07-24 10:35 GMT-03:00 Zeeuw, L.V. de <l.v.de.zeeuw () hr nl>:

Hi,

i am experimenting with the dpx. Its working. Now i started adding some
statements to view the content ip4/tcp headers. I am able log things like
src/dst, TCP payload size, etc.


*SFSnortPacket* p = (SFSnortPacket*)pkt;*

*_dpd.logMsg("Source port: %i, Destination port: %i\n",p->src_port,
p->dst_port);_dpd.logMsg("Payload size %i\n",p->payload_size); *
but from sf_snort_packet.h and sf_ip.h  (??) i do not know how to log an
ip-address ...

I should like to ...



*_dpd.logMsg("Source ip %?? \n", ?????);*BTW: Are there any recent
books/tutorials for these kind of questions you would recommend? What about
Snort development documentation for the most recent Snort version?

Any help is appreciated.

Regards,

Luc

the Netherlands







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