[SR-Users] JSON-RPC dgram_socket just part of the output

[Ilie Soltanici]

@Henning Westerholt <hw at skalatan.de> ,

Not sure that it's related to the UDP fragmentation because in Wireshark I
can see some packets coming from the server, yes they are fragmented but I
can't understand why just part of them arrive at the client.

[image: image.png]

In the Kamailio logs there are no warnings or errors, just some debug
messages:

```
Aug 25 09:48:49 svr[25699]: DEBUG: ctl [io_listener.c:518]:
handle_stream_read(): bytes processed: 40
Aug 25 09:48:49 svr[25699]: DEBUG: ctl [io_listener.c:495]:
handle_stream_read(): handle_stream read: eof on
/var/run/kamailio/kamailio_ctl
Aug 25 09:48:49 svr[25699]: DEBUG: ctl [../../core/io_wait.h:600]:
io_watch_del(): DBG: io_watch_del (0x7f0a6b972340, 22, -1, 0x10) fd_no=4
called
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [../../core/io_wait.h:375]:
io_watch_add(): processing io_watch_add(0x7f0a6b972340, 22, 3, 0x1f0f350) -
fd_no=3
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [io_listener.c:442]:
handle_new_connect(): handle_stream read: new connection (1) on
/var/run/kamailio/kamailio_ctl
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [io_listener.c:498]:
handle_stream_read(): bytes read: 18
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [io_listener.c:518]:
handle_stream_read(): bytes processed: 18
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [io_listener.c:498]:
handle_stream_read(): bytes read: 18
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [io_listener.c:518]:
handle_stream_read(): bytes processed: 18
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [io_listener.c:498]:
handle_stream_read(): bytes read: 21
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [io_listener.c:518]:
handle_stream_read(): bytes processed: 21
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [io_listener.c:498]:
handle_stream_read(): bytes read: 21
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [io_listener.c:518]:
handle_stream_read(): bytes processed: 21
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [io_listener.c:498]:
handle_stream_read(): bytes read: 25
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [io_listener.c:518]:
handle_stream_read(): bytes processed: 25
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [io_listener.c:495]:
handle_stream_read(): handle_stream read: eof on
/var/run/kamailio/kamailio_ctl
Aug 25 09:48:50 svr[25699]: DEBUG: ctl [../../core/io_wait.h:600]:
io_watch_del(): DBG: io_watch_del (0x7f0a6b972340, 22, -1, 0x10) fd_no=4
called
```

Thanks.

On Thu, 25 Aug 2022 at 07:43, Henning Westerholt <hw at gilawa.com> wrote:

> Hello,
>
>
>
> any errors in the log when you execute the command? Maybe its related to
> fragmentation of the UDP packet?
>
>
>
> Cheers,
>
>
>
> Henning
>
>
>
> --
>
> Henning Westerholt – https://skalatan.de/blog/
>
> Kamailio services – https://gilawa.com
>
>
>
> *From:* sr-users <sr-users-bounces at lists.kamailio.org> *On Behalf Of *Ilie
> Soltanici
> *Sent:* Thursday, August 25, 2022 2:13 AM
> *To:* Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
> *Subject:* [SR-Users] JSON-RPC dgram_socket just part of the output
>
>
>
> Hello,
>
>
>
> I'm trying to get the dispatcher status from kamailio through the UDP
> datagram but for some reason, it is getting just part of the output. Is
> there any buffer that I have to increase to get the complete output?
>
>
>
> command used:
>
> ```
>
> echo '{"jsonrpc": "2.0", "method": "dispatcher.list", "reply_name":
> "kamailio_reply_fifo", "id": 1}' | nc -u 192.168.1.1 8090
>
> ```
>
>
>
> kamailio related config:
>
> modparam("jsonrpcs", "fifo_name", "/tmp/kamailio_request.fifo")
>
> modparam("jsonrpcs", "transport", 6)
>
> modparam("jsonrpcs", "fifo_mode", 0600)
>
> modparam("jsonrpcs", "fifo_user", "kamailio")
>
> modparam("jsonrpcs", "dgram_socket", "udp:MY_INTERNAL_IP_ADDR:8090")
>
> modparam("jsonrpcs", "dgram_timeout", 2000)
>
> modparam("jsonrpcs", "pretty_format", 1)
>
>
>
> output:
>
>
>
> Thanks
>
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