Hi SMS msg can be carried over packet switched GPRS, and I am trying to have Wireshark decode SMS carried on GPRS LLC protocol (SAPI 7).
The stack is the following: ------------------- | sms msg | ------------------- | sms T-PDU | --> dissector exists (gsm_sms) in packet-gsm_sms.c ------------------- | sms RP | --> dissector exists (gsm_a_rp) in packet-gsm_a.c ------------------- | sms CP | ------------------- | GPRS LLC | --> dissector exists (gprs-llc) in packet-gprs-llc.c ------------------- some SMS Control Protocol (SMS CP) fields are included in GSM A DTAP dissector, but not the whole protocol. So I basically wrote a small plugin for SMS CP -following the dev guidelines-, and linked to GPRS-LLC and SMS-RP and it works fine. The questions are: - is there any interest in having this submitted back to the Wireshark source ? - if it is the case, what is the best practice (plugin, native) and recommendations for the dissector calls - restrain the calls to be within the new protocol code, or rather use call_dissector() etc in other dissectors, which implies a small diff on other dissectors too. Thks, and btw I found the developper doc extremely useful -many thks to the author(s). Cyrille
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