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gsm_04_80: Create a unstructuredSS-Notify message 

Create a unstructuredSS-Notify for a given type.
This commit is contained in:
Holger Hans Peter Freyther 2010-07-26 18:34:27 +08:00
parent 80dfa75df2
commit 15ef17e70e
2 changed files with 36 additions and 0 deletions
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1
openbsc/include/openbsc/gsm_04_80.h
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@ -24,6 +24,7 @@ int gsm0480_send_ussd_reject(struct gsm_subscriber_connection *conn,
const struct ussd_request *request);
struct msgb *gsm0480_create_notifySS(const char *text);
struct msgb *gsm0480_create_unstructuredSS_Notify(const char *text);
int gsm0480_wrap_invoke(struct msgb *msg, int op, int link_id);
#endif

35
openbsc/src/gsm_04_80.c
View File

@ -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,