tree 341de74cb10282afce4cafa4f7cea9a047f2f4f6
parent eacb4007fb6cbd8da437ca0967055cdac1d35a67
author Pablo Neira Ayuso <pablo@gnumonks.org> 1502110900 +0100
committer Neels Hofmeyr <neels@hofmeyr.de> 1503794029 +0200

libmsc: handle delivery ack via SMPP SUBMIT SM / send GSM 03.40 status report

This patch adds gsm340_sms_send_status_report_tpdu() to build a
status-report. Moreover, set sms->report field if we see a SMPP
SUBMIT_SM with Delivery Acknowledgment esm_class, so this identifies
that this is a delivery report.

    MS        GSM 03.40           SMSC       SMPP 3.4               ESME
     |                             |                                |
     |                             |           SUBMIT-SM            |
     |                             |    esm_class = Delivery Ack    |
     |                             |<-------------------------------|
     |                             |         SUBMIT-SM-RESP         |
     |                             |------------------------------->|
     |                             |                                |
     |     SMS-STATUS-REPORT       |                                |
     |<----------------------------|                                |
     |     GSM 04.11 RP-ACK        |                                |
     |---------------------------->|                                |
     |                             |                                |

There is a FIXME message in this patch, that I just copied from
gsm340_gen_sms_deliver_tpdu() since TP-MMS is not supported by OpenBSC.

Change-Id: Ib70e534840308ed315f7add440351e649de3f907