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Re: [PATCH] packet-gsmtap.c: handling LTE RRC and MAC messages


From: Pascal Quantin <pascal.quantin () gmail com>
Date: Mon, 19 Jan 2015 11:20:26 +0100

2015-01-19 11:04 GMT+01:00 altaf sk <altaf329 () gmail com>:

Hello

Here is a patch to the packet-gsmtap.c  that

1. can handle LTE RRC messages and call respective dissectors

2. can handle LTE MAC frames, fill in the struct mac_lte_info and then
call the mac-lte dissector. Following the GSMTAP header, there is a 15 byte
mac_info which is needed to fill the struct mac_lte_info. Following this
mac_info is the MAC payload (frame).

The size mac_info need not necessarily be 15 byte. But these 15 bytes are
necessary for the lte-mac dissector to understand the frame. 15 byte header
is used by the LTE_FDD_EnodeB application from the openLTE project.

The corresponding gsmtap.h file is patched on the libosmocore directory.

Please let me know your comments.


Best Regards,

Altaf


Hi Altaf,

I see that those changes are already merged in Osmocom repository, which is
good.
Could I convince you to upload your change to Gerrit so that we can perform
the review here? See
https://www.wireshark.org/docs/wsdg_html_chunked/ChSrcContribute.html for
details.
For example I do not see the frame number being forwarded to MAC LTE
dissector, while it would be better if it is available.

Regards,
Pascal.
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