[asterisk-bugs] [JIRA] (ASTERISK-24291) res_srtp module stops working after about 35.000 processed calls

[Matt Jordan (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-24291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=222489#comment-222489 ] 

Matt Jordan commented on ASTERISK-24291:
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We require a complete debug log to help triage the issue. This document will provide instructions on how to collect debugging logs from an Asterisk machine for the purpose of helping bug marshals troubleshoot an issue: https://wiki.asterisk.org/wiki/display/AST/Collecting+Debug+Information

When the issue occurs, please make sure you have both 'sip set debug on' and 'rtp set debug on' enabled.

> res_srtp module stops working after about 35.000 processed calls
> ----------------------------------------------------------------
>
>                 Key: ASTERISK-24291
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-24291
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_srtp
>    Affects Versions: 11.11.0, 11.12.0
>         Environment: Ubuntu 12.04.5 LTS (GNU/Linux 3.13.0-34-generic x86_64) running on HP DL360 G6/7, latest  libsrtp0 version 1.4.4+20100615~dfsg-1build, SIP only environment
>            Reporter: Robert H.
>            Severity: Critical
>
> When using encryption for RTP streams, asterisk does not accept any calls after about 35k calls (reproducable) have been processed correctly.
> All further inbound and outbound calls are rejected with a 
> "488 - Not Acceptable Here".
> When this happens, one asterisk machine shows:
> [2014-08-29 17:32:23.807] DEBUG[28500][C-00009387]: chan_sip.c:10530 process_sdp: Processing media-level (audio) SDP a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:cYswzW2zYpdgsVkKgQWvdbUSLedzlE8nByMqEYiI... UNSUPPORTED OR FAILED.
> [2014-08-29 17:32:23.807] WARNING[28500][C-00009387]: chan_sip.c:10535 process_sdp: Rejecting secure audio stream without encryption details: audio 11070 RTP/SAVP 8 0 101
> the destination asterisk shows:
> WARNING[10222][C-0000883a]: chan_sip.c:12925 get_crypto_attrib: No SRTP key management enabled
> Active srtp calls are not affected when this issue occurs, but all further Invites are rejected with the 488 response, so no more calls can be processed.
> The only solution at the moment is to restart asterisk or to wait until no more SRTP calls are active and then unload res_srtp.so followed by loading the module again.
> add info:
> - problem occurs regardless of using SIP over TLS or SIP without TLS
> - other (unencrypted) RTP connections are still working  
> If you need further info, just let me know.
> Thanks for checking into this!
> Robert
>     



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