diff options
Diffstat (limited to 'src/libmsc/gsm_04_80.c')
| -rw-r--r-- | src/libmsc/gsm_04_80.c | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/src/libmsc/gsm_04_80.c b/src/libmsc/gsm_04_80.c index 12b41a19d..8799fcbdc 100644 --- a/src/libmsc/gsm_04_80.c +++ b/src/libmsc/gsm_04_80.c @@ -108,15 +108,42 @@ int gsm0480_send_ussd_response(struct gsm_subscriber_connection *conn, return msc_tx_dtap(conn, msg); } +int gsm0480_send_ussd_return_error(struct gsm_subscriber_connection *conn, + const struct ss_request *req, uint8_t error_code) +{ + struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 USSD ERR"); + struct gsm48_hdr *gh; + + /* First insert the problem code */ + msgb_push_TLV1(msg, GSM_0480_ERROR_CODE_TAG, error_code); + + /* Before it insert the invoke ID */ + msgb_push_TLV1(msg, GSM0480_COMPIDTAG_INVOKE_ID, req->invoke_id); + + /* Wrap this up as a Reject component */ + msgb_wrap_with_TL(msg, GSM0480_CTYPE_RETURN_ERROR); + + /* Wrap the component in a Facility message */ + msgb_wrap_with_TL(msg, GSM0480_IE_FACILITY); + + /* And finally pre-pend the L3 header */ + gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh)); + gh->proto_discr = GSM48_PDISC_NC_SS; + gh->proto_discr |= req->transaction_id | (1<<7); /* TI direction = 1 */ + gh->msg_type = GSM0480_MTYPE_RELEASE_COMPLETE; + + return msc_tx_dtap(conn, msg); +} + int gsm0480_send_ussd_reject(struct gsm_subscriber_connection *conn, - const struct ss_request *req) + const struct ss_request *req, + uint8_t error_tag, uint8_t error_code) { struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 USSD REJ"); struct gsm48_hdr *gh; /* First insert the problem code */ - msgb_push_TLV1(msg, GSM_0480_PROBLEM_CODE_TAG_GENERAL, - GSM_0480_GEN_PROB_CODE_UNRECOGNISED); + msgb_push_TLV1(msg, error_tag, error_code); /* Before it insert the invoke ID */ msgb_push_TLV1(msg, GSM0480_COMPIDTAG_INVOKE_ID, req->invoke_id); |