Defining global filters?

[Anders Broman <anders.broman () ericsson com>]

Hi,
How to define filters and display the data of fields that may occur in multiple protocols? One example is IMSI ( 
International Mobile Subscriber identity) that exists in multiple 3GPP and 3GPP2 protocols, following a call flow 
through the system it could be interesting to filter on
IMSI across multiple protocols to build a filter covering all messages in the call flow.

Suggestion:

Create global_filters.[ch] in epan/dissectors or (packet-global_filters?) define functions to parse the data there 
and/or export the hf
Variable to be used in the protocol dissectors.

> From GTPv2 current:
:
International Mobile Subscriber Identity (IMSI) : 262021030000050
IE Type: International Mobile Subscriber Identity (IMSI) (1)
IE Length: 8
0000 .... = CR flag: 0
.... 0000 = Instance: 0
IMSI(International Mobile Subscriber Identity number): 262021030000050
:

New
International Mobile Subscriber Identity (IMSI) : 262021030000050
IE Type: International Mobile Subscriber Identity (IMSI) (1)
IE Length: 8
0000 .... = CR flag: 0
.... 0000 = Instance: 0
IMSI(International Mobile Subscriber Identity number): 262021030000050
[Global filter IMSI : 262021030000050]

Comments?

Regards
Anders

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