[SR-Users] GDB debugging Kamailio 5.2.2 IMS authorization failed by the SCSCF

[Federico Cabiddu]

Hi,
if I'm not wrong you should attach to the udp receiver process (8457).
The cdp threads are used to send Diameter messages and process
asynchronously the replies.

Cheers,

Federico


On Wed, 8 May 2019, 12:43 Woscek, Martin W., <mwoscek at mitre.org> wrote:

> Hi,
>
>
>
> Looking for some advice running the debugger and setting breakpoints in
> Kamailio modules such as the SCSCF.
>
> Example: We were trying to watch the authenticate() function:
>
> 714 int authenticate(struct sip_msg* msg, char* _realm, char* str2, int
> is_proxy_auth) {
>
>
>
> Our Kamailio 5.2.2 code was compiled and linked from source with the -g
> option already enabled by default.
>
>
>
> We also dropped our Workers to 1 from 16 in the scscf.xml file for the
> SCSCF to limit the thread count and get the following list of threads below:
>
> We tried the first cdp threads: 8462, 8463, and 8464 and while we could
> set a break point at line 714 for the authenticate() function, it didn’t
> actually break there at all.
>
>
>
> Question:
>
> What pid will we use to catch the authenticate() called during an initial
> registration from a boghe client?
>
> Anything special we may be missing, gdb related or Kamailio settings?
>
>
>
>
>
> kamcmd -s /run/kamailio_scscf/kamailio_ctl
>
> kamcmd 1.5
>
> Copyright 2006 iptelorg GmbH
>
> This is free software with ABSOLUTELY NO WARRANTY.
>
> For details type `warranty'.
>
> kamcmd> ps
>
> 8456    main process - attendant
>
> 8457    udp receiver child=0 sock=10.0.20.1:6060
>
> 8458    slow timer
>
> 8459    timer
>
> 8460    secondary timer
>
> 8461    ctl handler
>
> 8462    cdp worker child=0
>
> 8463    cdp receiver peer unknown
>
> 8464    cdp_receiver_peer=hss522.irisims.org
>
> 8465    cdp_acceptor
>
> 8466    cdp_timer
>
> 8470    notification_worker
>
> 8471    notification_worker
>
> 8472    notification_worker
>
> 8473    notification_worker
>
> 8477    JSONRPCS FIFO
>
> 8478    JSONRPCS DATAGRAM
>
>
>
> Any advice appreciated.
>
>
>
> Thanks,
>
> Martin Woscek
>
>
>
>
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