[PATCH] libosmocore[master]: gsm0480: add gsm0480_create_ussd_notify() and *_release_comp...

[Neels Hofmeyr]

Review at  https://gerrit.osmocom.org/1340

gsm0480: add gsm0480_create_ussd_notify() and *_release_complete()

Add two functions to create USSD messages. Moves and generalizes code from
openbsc. Pending: use the new functions in openbsc.

It looks like _release_complete() should also set trans_id and direction flag;
but since this is moving code from openbsc that is apparently working, just
place a fixme comment and don't change the functionality.

Change-Id: Ia80e32c7105359915bfad3cc5621a1c09caf20f0
---
M include/osmocom/gsm/gsm0480.h
M src/gsm/gsm0480.c
2 files changed, 31 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/40/1340/1

diff --git a/include/osmocom/gsm/gsm0480.h b/include/osmocom/gsm/gsm0480.h
index f49ca6b..6ca23e9 100644
--- a/include/osmocom/gsm/gsm0480.h
+++ b/include/osmocom/gsm/gsm0480.h
@@ -32,6 +32,8 @@
 struct msgb *gsm0480_create_ussd_resp(uint8_t invoke_id, uint8_t trans_id, const char *text);
 struct msgb *gsm0480_create_unstructuredSS_Notify(int alertPattern, const char *text);
 struct msgb *gsm0480_create_notifySS(const char *text);
+struct msgb *gsm0480_create_ussd_notify(int level, const char *text);
+struct msgb *gsm0480_create_ussd_release_complete(void);
 
 int gsm0480_wrap_invoke(struct msgb *msg, int op, int link_id);
 int gsm0480_wrap_facility(struct msgb *msg);
diff --git a/src/gsm/gsm0480.c b/src/gsm/gsm0480.c
index cab4d01..3c23f6f 100644
--- a/src/gsm/gsm0480.c
+++ b/src/gsm/gsm0480.c
@@ -540,3 +540,32 @@
 	gh->msg_type = msg_type;
 	return gh;
 }
+
+struct msgb *gsm0480_create_ussd_notify(int level, const char *text)
+{
+	struct msgb *msg;
+
+	msg = gsm0480_create_unstructuredSS_Notify(level, text);
+	if (!msg)
+		return NULL;
+
+	gsm0480_wrap_invoke(msg, GSM0480_OP_CODE_USS_NOTIFY, 0);
+	gsm0480_wrap_facility(msg);
+
+	gsm0480_l3hdr_push(msg, GSM48_PDISC_NC_SS, GSM0480_MTYPE_REGISTER);
+	return msg;
+}
+
+struct msgb *gsm0480_create_ussd_release_complete(void)
+{
+	struct msgb *msg;
+
+	msg = msgb_alloc_headroom(1024, 128, "GSM 04.80 USSD REL COMPL");
+	if (!msg)
+		return NULL;
+
+	/* FIXME: should this set trans_id and TI direction flag? */
+	gsm0480_l3hdr_push(msg, GSM48_PDISC_NC_SS,
+			   GSM0480_MTYPE_RELEASE_COMPLETE);
+	return msg;
+}

-- 
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ia80e32c7105359915bfad3cc5621a1c09caf20f0
Gerrit-PatchSet: 1
Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Owner: Neels Hofmeyr <nhofmeyr at sysmocom.de>