<div dir="ltr"><div><div><div><div><div><div>Hi Rob<br><br></div>Thanks for the fixes, I hope you have everything working now.<br><br></div>sem_post issue: we have had the same issue on Ubuntu and have added -lpthread to the Makefiles. We didn't commit as we are not 100% sure of the impact on other OS'. Does anyone have any objections to adding -lpthread to the Makefile of cdp, ims_qos and ims_registrar_pcscf?<br>
<br></div>seg_fault and memory management: The seg fault has been fixed in the master branch. Please feel free to commit the fix to 4.0. The memory management does seem odd, this code comes from the OpenIMSCore project, will have a look and see if I can figure it out.<br>
<br></div>SIP digest: This was accidentally left off as we do not use it - please feel free to commit.<br><br></div>Config file: You are correct these are out of date in 4.0 - Please feel free to commit the fix to 4.0. The master branch config files are up to date.<br>
<br></div>I recommend using the master branch for the time being as there are still quite a few changes coming through.<br><br>Regards<br>Richard.<br><div class="gmail_extra"><div><div dir="ltr"><table style="width:450.0pt" border="0" cellpadding="0" cellspacing="0" width="600">
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<br><br><div class="gmail_quote">On 28 December 2013 23:04, Rob Day <span dir="ltr"><<a href="mailto:rkd@rkd.me.uk" target="_blank">rkd@rkd.me.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<font size="-1">Hi,<br>
<br>
I've been trying to set up Kamailio 4.0.5 as a P-CSCF, I-CSCF and
S-CSCF today, and hit a few issues which I've fixed.
<a href="http://sip-router.org/contribute/" target="_blank">http://sip-router.org/contribute/</a> suggests that patches should be
submitted to this list, so here I am.<br>
<br>
The first issue I hit was the sem_post issue that has been
reported from time to time
(<a href="http://lists.kamailio.org/pipermail/sr-users/2013-January/076554.html" target="_blank">http://lists.kamailio.org/pipermail/sr-users/2013-January/076554.html</a>)
- it looks as though sem_post is only included in -lpthread on
Ubuntu 12.04, not -lrt
(<a href="https://bugs.launchpad.net/ubuntu/+source/manpages/+bug/874418" target="_blank">https://bugs.launchpad.net/ubuntu/+source/manpages/+bug/874418</a>),
so I've updated some Makefiles to reflect that.<br>
<br>
I subsequently hit a segfault when calling pcscf_save: I've
tracked this down to a while loop that was missing curly braces,
and so tried to dereference a null pointer. I think there's
another bug in this piece of code - because h is NULL at the end
of the first while loop, we never go round the second loop, and so
never call free_rr. It looks like even if we did, h->parsed has
been set to 0 before we try and free it, so nothing would happen.
I wasn't sure how the memory management here works, though, and so
haven't tried to change this.<br>
<br>
I also found that the ims_auth module didn't handle standard SIP
Digest authentication on the MAR interface, only AKA and
Digest-MD5 (which seems to be specific to OpenIMSCore HSS, and not
mentioned in the IMS specs). Most of the code to allow SIP Digest
authentication was already there, so I just hooked the last piece
in to get it to work. I'm not sure whether this counts as a new
feature or a bugfix - it's not clear whether this was meant to be
supported but just missing a piece, or not meant to be supported
but very easy to add in.<br>
<br>
Finally, I was working from the 4.0 nightlies Debian repository,
and the examples/scsf/kamailio.cfg file for 4.0.x seems to skip
authentication. It looks like this section has been reworked
heavily in 4.1.0, so this may be less important - but I put
together a different kamailio.cfg based on a mailing list post
(<a href="http://lists.sip-router.org/pipermail/sr-users/2013-March/077142.html" target="_blank">http://lists.sip-router.org/pipermail/sr-users/2013-March/077142.html</a>),
and it might make sense to use that as the default file for 4.0.x.<br>
<br>
The attached patches are against the 4.0 branch in Git
(specifically, commit 1b98961522fd8a7eb73ecc7d1772541f8b81aabc).
I'm happy to apply any feedback which more knowledgeable
contributors have.<br>
<br>
Best regards,<br>
Rob<br>
</font>
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