libmsc: add support for SMPP delivery receipts
If the mobile phone requests a status report via SMS, send a DELIVER_SM
with esm_class = Delivery Receipt to ESME to indicate that the SMS has
been already delivered to its destination.
MS GSM 03.40 SMSC SMPP 3.4 ESME
| | |
| SMS-DELIVER | |
|<----------------------------| |
| GSM 04.11 RP-ACK | |
|---------------------------->| |
| | DELIVER-SM |
| | esm_class = Delivery Receipt |
| |------------------------------->|
| | DELIVER-SM-RESP |
| |<-------------------------------|
| | |
This patch implements "Appendix B. Delivery Receipt Format" as specified
in the SMPP 3.4 specs. This string is conveyed in the SMS message as
data, and it is only meaningful to the ESME, for logging purposes. The
"submit date" and "done date" are not yet set, and other fields are just
sent with dummy values, so they are left to be finished as future work.
The new SMPP TLV tag TLVID_user_message_reference is added to the SMPP
messages inconditionally now since this information is required by
delivery-reports to associate the status-report with the original SMS.
Change-Id: Ic1a9023074bfa938099377980b6aff9b262fab2a
diff --git a/src/libmsc/smpp_smsc.h b/src/libmsc/smpp_smsc.h
index 0f1d35c..755e685 100644
--- a/src/libmsc/smpp_smsc.h
+++ b/src/libmsc/smpp_smsc.h
@@ -92,6 +92,7 @@
uint32_t sequence_nr;
uint32_t gsm411_msg_ref;
uint8_t gsm411_trans_id;
+ bool is_report;
struct osmo_timer_list response_timer;
};