Keith Whyte has submitted this change and it was merged.

Change subject: libmsc: Map SMPP command status to GSM 04.11 cause
......................................................................


libmsc: Map SMPP command status to GSM 04.11 cause

Send SMS RP ERROR with a failure cause that relates to
the status returned by the ESME in the deliver_sm_resp.

Actual mapping array is limited as most phones I tested
don't seem to care about the failure cause anyway,
although some will display a different notification for
GSM411_RP_CAUSE_MO_NUM_UNASSIGNED

Change-Id: I61fb2d9ef4f2d2eabdc49b53d9966ad328d15e51
---
M openbsc/src/libmsc/smpp_openbsc.c
M openbsc/src/libmsc/smpp_smsc.c
M openbsc/src/libmsc/smpp_smsc.h
3 files changed, 41 insertions(+), 7 deletions(-)

Approvals:
  Harald Welte: Looks good to me, approved
  Jenkins Builder: Verified



diff --git a/openbsc/src/libmsc/smpp_openbsc.c 
b/openbsc/src/libmsc/smpp_openbsc.c
index 8111d92..f94968a 100644
--- a/openbsc/src/libmsc/smpp_openbsc.c
+++ b/openbsc/src/libmsc/smpp_openbsc.c
@@ -461,6 +461,37 @@
        }
 }
 
+struct {
+       uint32_t smpp_status_code;
+       uint8_t gsm411_cause;
+} smpp_to_gsm411_err_array[] = {
+
+       /* Seems like most phones don't care about the failure cause,
+        * although some will display a different notification for
+        * GSM411_RP_CAUSE_MO_NUM_UNASSIGNED
+        * Some provoke a display of "Try again later"
+        * while others a more definitive "Message sending failed"
+        */
+
+       { ESME_RSYSERR,         GSM411_RP_CAUSE_MO_DEST_OUT_OF_ORDER    },
+       { ESME_RINVDSTADR,      GSM411_RP_CAUSE_MO_NUM_UNASSIGNED       },
+       { ESME_RMSGQFUL,        GSM411_RP_CAUSE_MO_CONGESTION           },
+       { ESME_RINVSRCADR,      GSM411_RP_CAUSE_MO_SMS_REJECTED         },
+       { ESME_RINVMSGID,       GSM411_RP_CAUSE_INV_TRANS_REF           }
+};
+
+static int smpp_to_gsm411_err(uint32_t smpp_status_code, int *gsm411_cause)
+{
+       int i;
+       for (i = 0; i < ARRAY_SIZE(smpp_to_gsm411_err_array); i++) {
+               if (smpp_to_gsm411_err_array[i].smpp_status_code != 
smpp_status_code)
+                       continue;
+               *gsm411_cause = smpp_to_gsm411_err_array[i].gsm411_cause;
+               return 0;
+       }
+       return -1;
+}
+
 static void smpp_cmd_free(struct osmo_smpp_cmd *cmd)
 {
        osmo_timer_del(&cmd->response_timer);
@@ -501,10 +532,11 @@
        smpp_cmd_free(cmd);
 }
 
-void smpp_cmd_err(struct osmo_smpp_cmd *cmd)
+void smpp_cmd_err(struct osmo_smpp_cmd *cmd, uint32_t status)
 {
        struct gsm_subscriber_connection *conn;
        struct gsm_trans *trans;
+       int gsm411_cause;
 
        conn = connection_for_subscr(cmd->subscr);
        if (!conn) {
@@ -520,14 +552,17 @@
                return;
        }
 
-       gsm411_send_rp_error(trans, cmd->sms->gsm411.msg_ref,
-                            GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER);
+       if (smpp_to_gsm411_err(status, &gsm411_cause) < 0)
+               gsm411_cause = GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER;
+
+       gsm411_send_rp_error(trans, cmd->sms->gsm411.msg_ref, gsm411_cause);
+
        smpp_cmd_free(cmd);
 }
 
 static void smpp_deliver_sm_cb(void *data)
 {
-       smpp_cmd_err(data);
+       smpp_cmd_err(data, ESME_RSYSERR);
 }
 
 static int smpp_cmd_enqueue(struct osmo_esme *esme,
diff --git a/openbsc/src/libmsc/smpp_smsc.c b/openbsc/src/libmsc/smpp_smsc.c
index bd25918..48a1192 100644
--- a/openbsc/src/libmsc/smpp_smsc.c
+++ b/openbsc/src/libmsc/smpp_smsc.c
@@ -681,11 +681,10 @@
                return -1;
        }
 
-       /* Map SMPP command status to GSM 04.11 cause? */
        if (deliver_r.command_status == ESME_ROK)
                smpp_cmd_ack(cmd);
        else
-               smpp_cmd_err(cmd);
+               smpp_cmd_err(cmd, deliver_r.command_status);
 
        LOGP(DSMPP, LOGL_INFO, "[%s] Rx DELIVER-SM RESP (%s)\n",
                esme->system_id, get_value_string(smpp_status_strs,
diff --git a/openbsc/src/libmsc/smpp_smsc.h b/openbsc/src/libmsc/smpp_smsc.h
index b95a1f5..d8e82e4 100644
--- a/openbsc/src/libmsc/smpp_smsc.h
+++ b/openbsc/src/libmsc/smpp_smsc.h
@@ -97,7 +97,7 @@
 struct osmo_smpp_cmd *smpp_cmd_find_by_seqnum(struct osmo_esme *esme,
                                              uint32_t sequence_number);
 void smpp_cmd_ack(struct osmo_smpp_cmd *cmd);
-void smpp_cmd_err(struct osmo_smpp_cmd *cmd);
+void smpp_cmd_err(struct osmo_smpp_cmd *cmd, uint32_t status);
 void smpp_cmd_flush_pending(struct osmo_esme *esme);
 
 struct smsc {

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Gerrit-MessageType: merged
Gerrit-Change-Id: I61fb2d9ef4f2d2eabdc49b53d9966ad328d15e51
Gerrit-PatchSet: 3
Gerrit-Project: openbsc
Gerrit-Branch: master
Gerrit-Owner: Keith Whyte <ke...@rhizomatica.org>
Gerrit-Reviewer: Harald Welte <lafo...@gnumonks.org>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: Keith Whyte <ke...@rhizomatica.org>
Gerrit-Reviewer: Neels Hofmeyr <nhofm...@sysmocom.de>
Gerrit-Reviewer: Pablo Neira Ayuso <pa...@gnumonks.org>

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