Hi Razvan,
This is a part of the config that's supposed to catch parse errors:
error_route{
xlog ("Entering error route");
# SIP message parse error
if ( $(err.class)==1 ) {
xlog ("Parse error from $si:$sp");
xlog ("$mb");
sl_send_reply("$err.rcode", "$err.rreason");
exit;
}
else {
xlog ("Error class=$(err.class) level=$(err.level)
info=$(err.info)");
}
}
route{
if ( !sipmsg_validate() ) {
xlog ("Bad request from $si:$sp");
xlog ("$mb");
sl_send_reply("400", "Bad Request");
exit;
}
...
I'm sure it didn't go through error route for TCP because none of the xlog
messages showed up in syslog.
I've also tried "s", "sh", and nothing as flags for sipmsg_validate. Same
error every time.
Thanks.
Cindy
On Mar 25, 2013, at 1:26 PM, Răzvan Crainea wrote:
> Hi Cindy!
>
> for TCP: the error seems to occur while reading the message. Are you sure the
> error route is not called for this type?
> for UDP: Are you passing any flags to the sipmsg_validate() function? Have
> you tried using the 's' flag [1]?
>
> [1] http://www.opensips.org/html/docs/modules/1.9.x/sipmsgops.html#id293070
>
> Best regards,
> Razvan Crainea
> OpenSIPS Core Developer
> http://www.opensips-solutions.com
> On 03/22/2013 02:30 AM, Cindy Leung wrote:
>> Hi all,
>>
>> So we encountered a malformed SIP message one day that looks like this...
>>
>> INVITE sip:[email protected]:5060 SIP/2.0
>> Via: SIP/2.0/UDP 127.0.1.1:5060;branch=z9hG4bK-15598-12-0
>> From: sipp <sip:[email protected]>;tag=12
>> To: <sip:[email protected]:5060>
>> Call-ID: [email protected]
>> CSeq: 1 INVITE
>> Contact: "1234" <sip:[email protected]:5060;transport=udp>
>> User-Agent: SIPp
>> Max-Forwards: 70
>> Content-Type: application/sdp
>> Content-Lenght: 0
>>
>> Typo in Content-Length.
>>
>> This message successfully passed through error_route and sipmsg_validate()
>> and continue through the rest of the config. Interesting enough, I get
>> different errors when I send it over different protocol.
>>
>> TCP:
>> /usr/local/sbin/opensips[18814]: ERROR:core:tcp_read_req: bad request,
>> state=4, error=4 buf: <SIP message here>
>>
>> UDP:
>> /usr/local/sbin/opensips[18804]: ERROR:core:clen_builder: no message body
>> found (missing crlf?)
>> /usr/local/sbin/opensips[18804]: ERROR:core:build_req_buf_from_sip_req:
>> failed to adjust Content-Length
>> /usr/local/sbin/opensips[18804]: ERROR:tm:print_uac_request: no more shm_mem
>> /usr/local/sbin/opensips[18804]: ERROR:tm:t_forward_nonack: failure to add
>> branches
>>
>> Can you let me know if I have missed anything please? Thanks!
>>
>>
>> Cindy
>>
>>
>> _______________________________________________
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>
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