[SR-Users] crash on using the $expires variable

[Jayesh Nambiar]

So someone planning to patch it? Just asking?

Thanks,

- Jayesh

On Thu, Nov 26, 2015 at 6:48 PM Sergey Okhapkin <sos at sokhapkin.dyndns.org>
wrote:

> Confirmed, I'm getting crash too.
>
> On Thursday 26 November 2015 13:05:57 Jayesh Nambiar wrote:
> > Hi,
> > I am trying to extract out the expires value from the incoming REGISTER
> > request. It might be present in the Contact header or as a separate
> Expires
> > header and hence I planned to use the $expires(max) PV to get this. But
> > kamailio just crashes as soon as I use the variable. Here's when it
> crashes:
> >
> > if(is_method("REGISTER")) {
> >      xlog("L_INFO", "Expires is $expires(max)");
> >      if(!save("location", "0x01")) {
> > t_reply("500", "Error while saving AOR");
> >      }
> > }
> >
> > It crashes at the xlog point. Here's the backtrace for reference:
> > Reading symbols from /usr/local/kamailio/sbin/kamailio...done.
> > [New LWP 16609]
> > [Thread debugging using libthread_db enabled]
> > Using host libthread_db library
> "/lib/x86_64-linux-gnu/libthread_db.so.1".
> > Core was generated by `/usr/local/kamailio/sbin/kamailio -P
> > /var/run/kamailio.pid -f /usr/local/kamail'.
> > Program terminated with signal SIGSEGV, Segmentation fault.
> > #0  0x00007f34b658b311 in pv_get_expires (msg=0x7f34bd879e58,
> > param=0x7f34bd7e9220, res=0x7ffcf67af530) at pv_core.c:3060
> > 3060 if(c->expires && c->expires->body.len) {
> > (gdb) backtrace
> > #0  0x00007f34b658b311 in pv_get_expires (msg=0x7f34bd879e58,
> > param=0x7f34bd7e9220, res=0x7ffcf67af530) at pv_core.c:3060
> > #1  0x00000000004fb6e1 in pv_get_spec_value (msg=0x7f34bd879e58,
> > sp=0x7f34bd7e9208, value=0x7ffcf67af530) at pvapi.c:1304
> > #2  0x00000000004fbb46 in pv_printf (msg=0x7f34bd879e58,
> > list=0x7f34bd80ef38, buf=0x7f34bd8735a0 "Expires is ",
> len=0x7ffcf67af618)
> > at pvapi.c:1363
> > #3  0x00007f34b67ea745 in xl_print_log (msg=0x7f34bd879e58,
> > list=0x7f34bd80ef38, buf=0x7f34bd8735a0 "Expires is ",
> len=0x7ffcf67af618)
> > at xl_lib.c:37
> > #4  0x00007f34b67eb0f9 in xlog_helper (msg=0x7f34bd879e58,
> > xm=0x7f34bd808648, level=2, line=0, facility=-1) at xlog.c:215
> > #5  0x00007f34b67ec160 in xlog_2_helper (msg=0x7f34bd879e58,
> > lev=0x7f34bd7e9130 "", frm=0x7f34bd808648 "84\177", mode=0, facility=-1)
> > at xlog.c:284
> > #6  0x00007f34b67ec19c in xlog_2 (msg=0x7f34bd879e58, lev=0x7f34bd7e9130
> > "", frm=0x7f34bd808648 "84\177") at xlog.c:292
> > #7  0x000000000041e23b in do_action (h=0x7ffcf67b0b40, a=0x7f34bd817cd0,
> > msg=0x7f34bd879e58) at action.c:1065
> > #8  0x000000000042a8e7 in run_actions (h=0x7ffcf67b0b40,
> a=0x7f34bd813e18,
> > msg=0x7f34bd879e58) at action.c:1548
> > #9  0x000000000041ab16 in do_action (h=0x7ffcf67b0b40, a=0x7f34bd7e8738,
> > msg=0x7f34bd879e58) at action.c:677
> > #10 0x000000000042a8e7 in run_actions (h=0x7ffcf67b0b40,
> a=0x7f34bd7e8738,
> > msg=0x7f34bd879e58) at action.c:1548
> > #11 0x000000000041e094 in do_action (h=0x7ffcf67b0b40, a=0x7f34bd7e89c8,
> > msg=0x7f34bd879e58) at action.c:1044
> > #12 0x000000000042a8e7 in run_actions (h=0x7ffcf67b0b40,
> a=0x7f34bd7e19d8,
> > msg=0x7f34bd879e58) at action.c:1548
> > #13 0x000000000042b04d in run_top_route (a=0x7f34bd7e19d8,
> > msg=0x7f34bd879e58, c=0x0) at action.c:1634
> > #14 0x000000000050f3d4 in receive_msg (
> >     buf=0xa80c00 <buf> "REGISTER sip:devsip.tlkn.com SIP/2.0\r\nVia:
> > SIP/2.0/UDP
> > 203.153.53.145:8300
> ;branch=z9hG4bK119a.e23ed10b856f38b41c93d1d259d8869f.0;i
> > =b1\r\nVia: SIP/2.0/TCP
> > 172.16.16.32:52358;rport=52359;received=203.153."..., len=712,
> > rcv_info=0x7ffcf67b0e60) at receive.c:196
> > #15 0x0000000000613b9e in udp_rcv_loop () at udp_server.c:495
> > #16 0x00000000004aa119 in main_loop () at main.c:1577
> > #17 0x00000000004b0e1e in main (argc=5, argv=0x7ffcf67b1318) at
> main.c:2553
> >
> > Thanks,
> >
> > - Jayesh
>
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