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res_rtp_asterisk.c: Add "seqno" strictrtp option

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When networks experience disruptions, there can be large gaps of time
between receiving packets. When strictrtp is enabled, this created
issues where a flood of packets could come in and be seen as an attack.
Another option - seqno - has been added to the strictrtp option that
ignores the time interval and goes strictly by sequence number for
validity.

Change-Id: I8a42b8d193673899c8fc22fe7f98ea87df89be71
This commit is contained in:
Ben Ford
2018-09-10 11:28:09 -05:00
committed by Benjamin Keith Ford
parent 94ef074cc7
commit 67e1e49e08
3 changed files with 65 additions and 23 deletions
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@@ -8,6 +8,17 @@
===
==============================================================================
------------------------------------------------------------------------------
--- Functionality changes from Asterisk 16.0.0 to Asterisk 16.1.0 ------------
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res_rtp_asterisk
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* The existing strictrtp option in rtp.conf has a new choice availabe, called
'seqno', which behaves the same way as setting strictrtp to 'yes', but will
ignore the time interval during learning so that bursts of packets can still
trigger learning our source.
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--- Functionality changes from Asterisk 15 to Asterisk 16 --------------------
------------------------------------------------------------------------------