diff options
| author | Vadim Yanitskiy <axilirator@gmail.com> | 2018-06-12 08:21:20 +0700 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2018-07-30 15:35:14 +0000 |
| commit | 8a6ef55ec5838bdac3b5780bfc404c9b732d944f (patch) | |
| tree | 6c6020d1532aefb25d05cdc9c0a5faaebaf84060 /src/libmsc/gsm_04_08.c | |
| parent | 8a0e2588e208e1975c74d7e849e66fd205129acb (diff) | |
libmsc/gsm_09_11.c: forward SS/USSD messages to HLR over GSUP
In order to be able to support external SS/USSD gateway, we should
not terminate the GSM 04.80 messages at OsmoMSC. Instead, we need
to follow the GSM TS 09.11 specification, and forward all messages
unhandled by OsmoMSC to OsmoHLR over GSUP protocol.
This change implements forwarding of MO SS/USSD messages. The
forwarding assumes transcoding between GSM 04.80 messages and
GSUP messages. The payload of Facility IE is carried 'as is'.
As a side-effect, this will disable the osmo-msc internal handler
implementing the "*#100#" for obtaining the subscribers own phone
number. In order to re-gain this functionality, you will need a
modern osmo-hlr (Change-Id I1d09fab810a6bb9ab02904de72dbc9e8a414f9f9)
and the following line in your osmo-hlr.cfg:
hlr
ussd route prefix *#100# internal own-msisdn
TTCN-3 test case: I01de73aced6057328a121577a5a83bc2615fb2d4
Change-Id: Ide5f7e350b537db80cd8326fc59c8bf2e01cb68c
Diffstat (limited to 'src/libmsc/gsm_04_08.c')
| -rw-r--r-- | src/libmsc/gsm_04_08.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/libmsc/gsm_04_08.c b/src/libmsc/gsm_04_08.c index c10a701e2..19b0572ee 100644 --- a/src/libmsc/gsm_04_08.c +++ b/src/libmsc/gsm_04_08.c @@ -1702,7 +1702,13 @@ static int msc_vlr_route_gsup_msg(struct vlr_subscr *vsub, struct osmo_gsup_message *gsup_msg) { switch (gsup_msg->message_type) { - /* Nowhere to route for now */ + /* GSM 09.11 code implementing SS/USSD */ + case OSMO_GSUP_MSGT_PROC_SS_REQUEST: + case OSMO_GSUP_MSGT_PROC_SS_RESULT: + case OSMO_GSUP_MSGT_PROC_SS_ERROR: + DEBUGP(DMSC, "Routed to GSM 09.11 SS/USSD handler\n"); + return gsm0911_gsup_handler(vsub, gsup_msg); + default: LOGP(DMM, LOGL_ERROR, "No handler found for %s, dropping message...\n", osmo_gsup_message_type_name(gsup_msg->message_type)); |