[SR-Users-ES] Kamailio como SBC
sip user
sipuser404 en gmail.com
Mie Abr 15 11:22:33 CEST 2020
Hola buenos días... soy nuevo en esta lista y estaba empezzando a meterme
con Kamailio, principalmente para configurarlo como SBC contra Teams, en
este caso.
Pero no consigo que me funcione. Si lanzo una llamadas desde el Teams, en
el Kamailio veo:
1.- En syslog:
Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
[ip_addr.c:243]: print_ip(): tcpconn_new: new tcp connection: 52.114.7.24
Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
[tcp_main.c:1073]: tcpconn_new(): tcpconn_new: on port 4160, type 3
Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
[tcp_main.c:1382]: tcpconn_add(): tcpconn_add: hashes: 171:1857:1187, 30
Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
[io_wait.h:388]: io_watch_add(): DBG: io_watch_add(0xa1f240, 23, 2,
0x7f90f2438f80), fd_no=17
Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
[io_wait.h:610]: io_watch_del(): DBG: io_watch_del (0xa1f240, 23, -1, 0x0)
fd_no=18 called
Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
[tcp_main.c:4219]: handle_tcpconn_ev(): tcp: DBG: sending to child, events 1
Apr 15 11:11:41 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
[tcp_main.c:3902]: send2child(): selected tcp worker 1 10(23159) for
activity on [tls:SBC_IP:5061], 0x7f90f2438f80
Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
[tcp_read.c:1507]: handle_io(): received n=8 con=0x7f90f2438f80, fd=9
Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: tls
[tls_server.c:184]: tls_complete_init(): Using TLS domain TLSs<default>
Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: tls
[tls_domain.c:700]: sr_ssl_ctx_info_callback(): SSL handshake started
Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
[tcp_main.c:2516]: tcpconn_do_send(): tcp_send: sending...
Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
[tcp_main.c:2550]: tcpconn_do_send(): tcp_send: after real write: c=
0x7f90f2438f80 n=1468 fd=9
Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
[tcp_main.c:2551]: tcpconn_do_send(): tcp_send: buf=
Apr 15 11:11:41 vps793907 kamailio[23122]: #026#003#003
Apr 15 11:11:41 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
[io_wait.h:388]: io_watch_add(): DBG: io_watch_add(0x9c1700, 9, 2,
0x7f90f2438f80), fd_no=1
Apr 15 11:11:42 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
[tcp_read.c:296]: tcp_read_data(): EOF on 0x7f90f2438f80, FD 9
Apr 15 11:11:42 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
[tcp_read.c:1291]: tcp_read_req(): tcp_read_req: EOF
Apr 15 11:11:42 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
[io_wait.h:610]: io_watch_del(): DBG: io_watch_del (0x9c1700, 9, -1, 0x10)
fd_no=2 called
Apr 15 11:11:42 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
[tcp_read.c:1434]: release_tcpconn(): releasing con 0x7f90f2438f80, state
-1, fd=9, id=30
Apr 15 11:11:42 vps793907 kamailio[23122]: 10(23159) DEBUG: <core>
[tcp_read.c:1435]: release_tcpconn(): extra_data 0x7f90f2432b40
Apr 15 11:11:42 vps793907 kamailio[23122]: 13(23167) DEBUG: <core>
[tcp_main.c:3331]: handle_tcp_child(): handle_tcp_child: reader response=
7f90f2438f80, -1 from 1
Apr 15 11:11:42 vps793907 kamailio[23122]: 13(23167) DEBUG: tls
[tls_server.c:604]: tls_h_close(): Closing SSL connection 0x7f90f2432b40
2.- Con un TCPDUMP:
11:13:09.311797 IP SBC_IP .1024 > SBC_IP .eu.sip-tls: Flags [S], seq
261244614, win 64240, options [mss 1440,nop,wscale 8,nop,nop,sackOK],
length 0
11:13:09.311898 IP SBC_IP .eu.sip-tls > 52.114.76.76.1024: Flags [S.], seq
812357247, ack 261244615, win 29200, options [mss
1460,nop,nop,sackOK,nop,wscale 7], length 0
11:13:09.340358 IP 52.114.76.76.1024 > SBC_IP .eu.sip-tls: Flags [.], ack
1, win 2053, length 0
11:13:09.340560 IP 52.114.76.76.1024 > SBC_IP .eu.sip-tls: Flags [P.], seq
1:187, ack 1, win 2053, length 186
11:13:09.340578 IP SBC_IP .eu.sip-tls > 52.114.76.76.1024: Flags [.], ack
187, win 237, length 0
11:13:09.341361 IP SBC_IP .eu.sip-tls > 52.114.76.76.1024: Flags [P.], seq
1:1469, ack 187, win 237, length 1468
11:13:09.369606 IP 52.114.76.76.1024 > SBC_IP .eu.sip-tls: Flags [.], ack
1469, win 2053, length 0
11:13:12.451498 IP 52.114.7.24.1216 > SBC_IP .eu.sip-tls: Flags [S], seq
309084204, win 64240, options [mss 1440,nop,wscale 8,nop,nop,sackOK],
length 0
11:13:12.451587 IP SBC_IP .eu.sip-tls > 52.114.7.24.1216: Flags [S.], seq
3275066862, ack 309084205, win 29200, options [mss
1460,nop,nop,sackOK,nop,wscale 7], length 0
11:13:12.707119 IP 52.114.7.24.1216 > SBC_IP .eu.sip-tls: Flags [.], ack 1,
win 2053, length 0
11:13:12.707311 IP 52.114.7.24.1216 > SBC_IP .eu.sip-tls: Flags [P.], seq
1:187, ack 1, win 2053, length 186
11:13:12.707345 IP SBC_IP .eu.sip-tls > 52.114.7.24.1216: Flags [.], ack
187, win 237, length 0
11:13:12.708273 IP SBC_IP .eu.sip-tls > 52.114.7.24.1216: Flags [P.], seq
1:1469, ack 187, win 237, length 1468
11:13:12.965101 IP 52.114.7.24.1216 > SBC_IP .eu.sip-tls: Flags [.], ack
1469, win 2053, length 0
11:13:12.965156 IP 52.114.7.24.1216 > SBC_IP .eu.sip-tls: Flags [F.], seq
187, ack 1469, win 2053, length 0
11:13:12.965688 IP SBC_IP .eu.sip-tls > 52.114.7.24.1216: Flags [F.], seq
1469, ack 188, win 237, length 0
11:13:13.220871 IP 52.114.7.24.1216 > SBC_IP .eu.sip-tls: Flags [.], ack
1470, win 2053, length 0
No consigo "recibir" nada.
Tengo generados los certificados y configurados en el tls.cfg del Kamailio:
[server:default]
method = TLSv1.2
verify_certificate = no
require_certificate = no
private_key = /etc/letsencrypt/ssl/cert.key
certificate = /etc/letsencrypt/ssl/cert.crt
ca_list = /etc/letsencrypt/ssl/ca.crt
Dentro del propio Kamailio tengo configurado para que devuelva un 200
KeepAlive al Teams cuando recibe un OPTIONS:
event_route[tm:local-request] {
if(is_method("OPTIONS") && $ru =~ "pstnhub.microsoft.com") {
append_hf("Contact: <sip: SBC_DNS :5061;transport=tls>\r\n");
}
xlog("L_INFO", "Sent out tm request: $mb\n");
}
Y he midificado el record_route por este nuevo:
record_route_preset(" SBC_DNS :5061;transport=tls", " SBC_IP :5061");
He creado una dispatcher.list:
# setid(integer) destination(sip uri) flags (integer, optional),
priority(int,opt), attrs (str,optional)
1:1:sip:sip.pstnhub.microsoft.com;transport=tls 0 3 socket=tls: SBC_IP
:5061;ping_from= sip:SBC_DNS
2:1:sip:sip2.pstnhub.microsoft.com;transport=tls 0 2 socket=tls: SBC_IP
:5061;ping_from=sip: SBC_DNS
3:1:sip:sip3.pstnhub.microsoft.com;transport=tls 0 1 socket=tls: SBC_IP
:5061;ping_from=sip: SBC_DNS
4:1:sip:sip-all.pstnhub.microsoft.com;transport=tls 0 1 socket=tls: SBC_IP
:5061;ping_from=sip: SBC_DNS
Creo, que uno de los problemas es que no mando bien el OPTIONS hacia el
Teams, ya que este en su panel, me indica que el SBC está INACTIVO.
No se si podrías ayudarme a enderezar un poco esto....
Muchas gracias por todo..
Un saludo
------------ próxima parte ------------
Se ha borrado un adjunto en formato HTML...
URL: <http://lists.kamailio.org/pipermail/sr-users-es/attachments/20200415/af6b867d/attachment.html>
Más información sobre la lista de distribución sr-users-es