diff options
Diffstat (limited to 'openbsc/src')
| -rw-r--r-- | openbsc/src/gsm_04_80.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/openbsc/src/gsm_04_80.c b/openbsc/src/gsm_04_80.c index 2d061e316..1eada9c9c 100644 --- a/openbsc/src/gsm_04_80.c +++ b/openbsc/src/gsm_04_80.c @@ -308,6 +308,41 @@ struct msgb *gsm0480_create_notifySS(const char *text) return msg; } +struct msgb *gsm0480_create_unstructuredSS_Notify(const char *text) +{ + struct msgb *msg; + uint8_t *seq_len_ptr, *ussd_len_ptr, *data; + int len; + + msg = gsm48_msgb_alloc(); + if (!msg) + return NULL; + + /* SEQUENCE { */ + msgb_put_u8(msg, GSM_0480_SEQUENCE_TAG); + seq_len_ptr = msgb_put(msg, 1); + + /* DCS { */ + msgb_put_u8(msg, ASN1_OCTET_STRING_TAG); + msgb_put_u8(msg, 1); + msgb_put_u8(msg, 0x0F); + /* } DCS */ + + /* USSD-String { */ + msgb_put_u8(msg, ASN1_OCTET_STRING_TAG); + ussd_len_ptr = msgb_put(msg, 1); + data = msgb_put(msg, 0); + len = gsm_7bit_encode(data, text); + msgb_put(msg, len); + ussd_len_ptr[0] = len; + /* USSD-String } */ + + seq_len_ptr[0] = 3 + 2 + ussd_len_ptr[0]; + /* } SEQUENCE */ + + return msg; +} + /* Send response to a mobile-originated ProcessUnstructuredSS-Request */ int gsm0480_send_ussd_response(struct gsm_subscriber_connection *conn, const struct msgb *in_msg, const char *response_text, |