Hi ,
I had to include some RANAP messages in my dissector.
I have included in the following way:
dissect_xxx_msg(tvbuff_t *tvb,int offset,proto_tree
*macic_tree,packet_info *pinfo)
{
guint8 *buf = ep_alloc(10240);
tvbuff_t *ranap_tvb;
int i;
asn1_ctx_t actx;
offset = add_IE_indicator(tvb, offset, macic_tree); /* To add IE
Indicator */
offset = add_IE_length(tvb, offset, macic_tree); /* To add IE length
*/
ranap_tvb = tvb_new_real_data(buf,i,i);
tvb_set_child_real_data_tvbuff(tvb,ranap_tvb);
add_new_data_source(pinfo, ranap_tvb, "RANAP OVER MACIC");
asn1_ctx_init(&actx, ASN1_ENC_PER, TRUE, pinfo);
offset= dissect_ranap_ResetAcknowledge(ranap_tvb, offset, &actx,
macic_tree, hf_macic_ranap_resetAcknowledge);
................
.........
Remaining part of the msg continues..
}
I have included the appropriate headers : packet_ranap.h, packet_per.h,
packet_ber.h etc etc...
I am getting a run-time error mentioned below:
undefined symbol: dissect_ranap_ResetResource
Any other place that I have to declare the functions ????
Please help.....
Regards,
Tarani
________________________________
From: Taraniteja Vishwanatha (WT01 - IP-Multimedia Carrier & Ent
Networks)
Sent: Friday, April 13, 2007 12:52 PM
To: 'wireshark-dev@wireshark.org'
Subject: RE: Including ASN.1 format coding in a C dissector
Hi Anders,
To include the RANAP messages in my dissector, I have done the
following:
1.In ranap.cnf under #.EXPORTS, I have added the message id s which I
want to export.
2.In packet-ranap.h, I have included the corresponding functions of the
messages which I want to add.
3.In my dissector , I have included packet-ranap.h , packet-per.h and
called the functions appropriately.
But I am getting errors due to some linking problems.
error: `actx' undeclared (first use in this function)
error: (Each undeclared identifier is reported only once
I have not defined asn1_ctx_t *actx in my dissector as I have included
the appropriate headers.
Can you please help???
Regards,
Tarani
________________________________
From: Taraniteja Vishwanatha (WT01 - IP-Multimedia Carrier & Ent
Networks)
Sent: Thursday, April 12, 2007 11:32 AM
To: 'wireshark-dev@wireshark.org'
Subject: RE: Including ASN.1 format coding in a C dissector
Hi Anders,
Thanks for the information. The dissector is propreitary , hence I cant
include it in Wireshark.
I will include RANAP messages in the way you have mentioned.
But then , I will have a tough time forming packets for testing . Any
clue how can I form the packets.
Thanks in advance.
Regards,
Tarani
________________________________
From: Taraniteja Vishwanatha (WT01 - IP-Multimedia Carrier & Ent
Networks)
Sent: Wednesday, April 11, 2007 5:40 PM
To: 'wireshark-dev@wireshark.org'
Subject: Including ASN.1 format coding in a C dissector
Hi ,
I have written a dissector for a protocol which has a coding standard
of Tag-Length-Value. Now in this dissector , I have to add some messages
of RANAP protocol which has a coding standard in ASN.1 format.Already
the dissector for RANAP is available in the wireshark. Now:
1.Can I call the existing dissector for those particular messages??? If
so how do I do that??
2. If I want to include it normally in my dissector, how can I convert
the ASN.1 format to obtain the tag and lengths of individual
parameters??
Can anybody please help??
//Tarani
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