[Asterisk-code-review] res rtp asterisk: Prevent simultaneous access to DTLS SSL co... (asterisk[13])

[Joshua Colp]

Hello Anonymous Coward #1000019,

I'd like you to reexamine a change.  Please visit

    https://gerrit.asterisk.org/787

to look at the new patch set (#3).

Change subject: res_rtp_asterisk: Prevent simultaneous access to DTLS SSL context.
......................................................................

res_rtp_asterisk: Prevent simultaneous access to DTLS SSL context.

This change moves logic for setting up the DTLS SSL contexts to
when the SDP is done being processed instead of when ICE negotiation
completes. It also stops handshakes from being initiated when we
are acting as a server.

Manipulating the SSL context when ICE negotiation has completed
is problematic as the SSL context is not protected and if acting
as a client the remote side may have started DTLS negotiation
already.

The retransmission timeout timer code has also been split up
and simplified some. Both RTP and RTCP now have their own timers
and the points at which the timer is stopped and started is now
more specific. When a packet is sent the timer is started. When
a response is received but before it is processed the timer is
stopped. This provides a guarantee that the timeout is not
occurring while the response is processed.

ASTERISK-22805 #close
ASTERISK-24550 #close
ASTERISK-24651 #close
ASTERISK-24832 #close
ASTERISK-25103 #close
ASTERISK-25127 #close

Change-Id: Ib75ea2546f29d6efc3d2d37c58df6986c7bd9b91
---
M res/res_rtp_asterisk.c
1 file changed, 134 insertions(+), 85 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/87/787/3
-- 
To view, visit https://gerrit.asterisk.org/787
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ib75ea2546f29d6efc3d2d37c58df6986c7bd9b91
Gerrit-PatchSet: 3
Gerrit-Project: asterisk
Gerrit-Branch: 13
Gerrit-Owner: Joshua Colp <jcolp at digium.com>
Gerrit-Reviewer: Anonymous Coward #1000019