Added IE 187(Maximum Wait Time) and 188(Millisecond Time Stamp) to gtp_v2.py

[mlugo-apx]

Adds to the GTPv2 protocol capability of Scapy by adding support for the Information Elements 187(Maximum Wait Time) and 188(Millisecond Time Stamp).

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 49.23%. Comparing base (8cea357) to head (36ec027).

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #4376       +/-   ##
===========================================
- Coverage   82.21%   49.23%   -32.99%     
===========================================
  Files         353      346        -7     
  Lines       83586    77806     -5780     
===========================================
- Hits        68723    38304    -30419     
- Misses      14863    39502    +24639     

Files	Coverage Δ
scapy/contrib/gtp_v2.py	91.44% <100.00%> (-3.98%)	⬇️

... and 265 files with indirect coverage changes

[gpotter2]

Thanks for the PR ! Could you add a unit test that builds and/or dissects those new packets?
Thanks

[mlugo-apx]

Thanks for the PR ! Could you add a unit test that builds and/or dissects those new packets? Thanks

Is there anywhere that shows how to build the test?

[gpotter2]

You can read the doc: https://scapy.readthedocs.io/en/latest/development.html#testing-with-utscapy

but the format is trivial to understand.

You can add them to:
https://github.com/secdev/scapy/blob/master/test/contrib/gtp_v2.uts