[Spce-user] master/mr5.3: rtpengine computing MOS on SRTCP(encrypted): issue 366

Anthony Alba ascanio.alba7 at gmail.com
Thu May 18 22:14:32 EDT 2017


https://github.com/sipwise/rtpengine/issues/366

I am testing mr5.3 and master mr5.4. rtpengine is trying to compute
MOS over SRTCP so of course gets nonsense answers (SRTP session).

rtpengine -i priv/10.0.0.1 -i public/10.1.0.1\!5.6.7.8 -n 12221 -f -F
-t 0 -c 12222 -E

[1495159131.405362] INFO: Generating new DTLS certificate
[1495159131.423543] INFO: Startup complete, version git-mr5.4-b6c9c6c

Many messages like this:

[1495159231.018974] INFO: [A9KQiDWsm7DfMmLBXkfY17bdMR7-mnKr port
30055]: SSRC hash table exceeded size limit (trying to add 3443372870)
[1495159231.336048] INFO: [A9KQiDWsm7DfMmLBXkfY17bdMR7-mnKr port
30055]: SSRC hash table exceeded size limit (trying to add 4077210622)
[1495159231.663612] INFO: [A9KQiDWsm7DfMmLBXkfY17bdMR7-mnKr port
30055]: SSRC hash table exceeded size limit (trying to add 807792821)
[1495159231.983316] INFO: [A9KQiDWsm7DfMmLBXkfY17bdMR7-mnKr port
30055]: SSRC hash table exceeded size limit (trying to add 1997791840)
[1495159232.327094] INFO: [A9KQiDWsm7DfMmLBXkfY17bdMR7-mnKr port
30055]: SSRC hash table exceeded size limit (trying to add 995538883)
[1495159232.619282] INFO: [A9KQiDWsm7DfMmLBXkfY17bdMR7-mnKr port
30055]: SSRC hash table exceeded size limit (trying to add 43688544)


I did a tcpdump of the session and indeed the numbers like 3443372870
are ciphertext.

Is there a way to disable MOS during SRTP? Filed as #366.

Thanks



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