[asterisk-dev] [Code Review] 3992: res_pjsip_sdp_rtp: Add optimistic SRTP support.

[Matt Jordan]

> On Oct. 13, 2014, 11:18 a.m., Matt Jordan wrote:
> > /trunk/res/res_pjsip_sdp_rtp.c, lines 1097-1103
> > <https://reviewboard.asterisk.org/r/3992/diff/2/?file=67982#file67982line1097>
> >
> >     Blobs!
> 
> Joshua Colp wrote:
>     Per other review this needs alembic.

And you're correct on the other review, this actually should be CHANGES.


- Matt


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On Oct. 10, 2014, 3:13 p.m., Joshua Colp wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviewboard.asterisk.org/r/3992/
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> 
> (Updated Oct. 10, 2014, 3:13 p.m.)
> 
> 
> Review request for Asterisk Developers.
> 
> 
> Repository: Asterisk
> 
> 
> Description
> -------
> 
> When enabling SRTP support in PJSIP it is either forced on or disabled. This means that if you specify SRTP but the client does not support it the session will fail. For situations where this guarantee is not required this new functionality can be used to optimistically use SRTP if possible. This has the added benefit of encrypting the media when possible but does not guarantee it. This also fixes an issue where a client may offer SRTP using the normal transport but we reject it.
> 
> 
> Diffs
> -----
> 
>   /trunk/res/res_pjsip_session.c 425156 
>   /trunk/res/res_pjsip_sdp_rtp.c 425156 
>   /trunk/res/res_pjsip/pjsip_configuration.c 425156 
>   /trunk/res/res_pjsip.c 425156 
>   /trunk/include/asterisk/res_pjsip_session.h 425156 
>   /trunk/include/asterisk/res_pjsip.h 425156 
>   /trunk/configs/samples/pjsip.conf.sample 425156 
> 
> Diff: https://reviewboard.asterisk.org/r/3992/diff/
> 
> 
> Testing
> -------
> 
> Used Blink to place calls with optimistic enabled and disabled on the PJSIP side.
> In Blink I alternated between disabled/mandatory/optional.
> Confirmed that for each scenario the expected outcome occurred.
> 
> Blink              Asterisk               Result
> Disabled           Optimistic Off         Failed
> Disabled           Optimistic On          Success (Not encrypted)
> Mandatory          Optimistic Off         Success (Encrypted)
> Mandatory          Optimistic On          Success (Encrypted)
> Optional           Optimistic Off         Success (Encrypted)
> Optional           Optimistic On          Success (Encrypted)
> 
> 
> Thanks,
> 
> Joshua Colp
> 
>

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