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gsm0480: Implement a generic "invoke" wrapping for messages. 

Implement a GSM 04.80 invoke wrapper for a component and an
invoke id.
This commit is contained in:
Holger Hans Peter Freyther 2010-07-26 03:41:11 +08:00
parent 680833e2ba
commit 6a4b362ceb
2 changed files with 22 additions and 0 deletions
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1
openbsc/include/openbsc/gsm_04_80.h
View File

@ -24,5 +24,6 @@ int gsm0480_send_ussd_reject(struct gsm_subscriber_connection *conn,
const struct ussd_request *request);
struct msgb * gsm0480_create_notifySS(const char *text);
int gsm0480_wrap_invoke(struct msgb *msg, int op, int link_id);
#endif

21
openbsc/src/gsm_04_80.c
View File

@ -360,6 +360,27 @@ int gsm0480_send_ussd_response(struct gsm_subscriber_connection *conn,
return gsm0808_submit_dtap(conn, msg, 0);
}
/* wrap an invoke around it... the other way around
*
* 1.) Invoke Component tag
* 2.) Invoke ID Tag
* 3.) Operation
* 4.) Data
*/
int gsm0480_wrap_invoke(struct msgb *msg, int op, int link_id)
{
/* 3. operation */
msgb_push_TLV1(msg, GSM0480_OPERATION_CODE, op);
/* 2. invoke id tag */
msgb_push_TLV1(msg, GSM0480_COMPIDTAG_INVOKE_ID, link_id);
/* 1. component tag */
msgb_wrap_with_TL(msg, GSM0480_CTYPE_INVOKE);
return 0;
}
int gsm0480_send_ussd_reject(struct gsm_subscriber_connection *conn,
const struct msgb *in_msg,
const struct ussd_request *req)