Review at https://gerrit.osmocom.org/3649
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
---
M src/libmsc/gsm_04_11.c
M src/libmsc/smpp_openbsc.c
2 files changed, 54 insertions(+), 2 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-msc refs/changes/49/3649/1
diff --git a/src/libmsc/gsm_04_11.c b/src/libmsc/gsm_04_11.c
index b4fa3df..0a1348d 100644
--- a/src/libmsc/gsm_04_11.c
+++ b/src/libmsc/gsm_04_11.c
@@ -279,6 +279,49 @@
return msg->len - old_msg_len;
}
+/* As defined by GSM 03.40, Section 9.2.2.3. */
+static int gsm340_gen_sms_status_report_tpdu(struct msgb *msg,
+ struct gsm_sms *sms)
+{
+ unsigned int old_msg_len = msg->len;
+ uint8_t oa_len = 0;
+ uint8_t oa[12]; /* max len per 03.40 */
+ uint8_t *smsp;
+
+ /* generate first octet with masked bits */
+ smsp = msgb_put(msg, 1);
+ /* TP-MTI (message type indicator) */
+ *smsp = GSM340_SMS_STATUS_REP_SC2MS;
+ /* TP-MMS (more messages to send) */
+ if (0 /* FIXME */)
+ *smsp |= 0x04;
+ /* TP-MR (message reference) */
+ smsp = msgb_put(msg, 1);
+ *smsp = sms->msg_ref;
+ /* generate recipient address */
+ oa_len = gsm340_gen_oa_sub(oa, sizeof(oa), &sms->dst);
+ smsp = msgb_put(msg, oa_len);
+ memcpy(smsp, oa, oa_len);
+
+ /* generate TP-SCTS (Service centre timestamp) */
+ smsp = msgb_put(msg, 7);
+ gsm340_gen_scts(smsp, time(NULL));
+
+ /* generate TP-DT (Discharge time, in TP-SCTS format). */
+ smsp = msgb_put(msg, 7);
+ gsm340_gen_scts(smsp, time(NULL));
+
+ /* TP-ST (status) */
+ smsp = msgb_put(msg, 1);
+ /* From GSM 03.40, Section 9.2.3.15, 0x00 means OK. */
+ *smsp = 0x00;
+
+ LOGP(DLSMS, LOGL_INFO, "sending status report for SMS reference %x\n",
+ sms->msg_ref);
+
+ return msg->len - old_msg_len;
+}
+
static int sms_route_mt_sms(struct gsm_subscriber_connection *conn,
struct gsm_sms *gsms)
{
@@ -993,8 +1036,13 @@
/* obtain a pointer for the rp_ud_len, so we can fill it later */
rp_ud_len = (uint8_t *)msgb_put(msg, 1);
- /* generate the 03.40 SMS-DELIVER TPDU */
- rc = gsm340_gen_sms_deliver_tpdu(msg, sms);
+ if (sms->is_report) {
+ /* generate the 03.40 SMS-STATUS-REPORT TPDU */
+ rc = gsm340_gen_sms_status_report_tpdu(msg, sms);
+ } else {
+ /* generate the 03.40 SMS-DELIVER TPDU */
+ rc = gsm340_gen_sms_deliver_tpdu(msg, sms);
+ }
if (rc < 0) {
send_signal(S_SMS_UNKNOWN_ERROR, trans, sms, 0);
sms_free(sms);
diff --git a/src/libmsc/smpp_openbsc.c b/src/libmsc/smpp_openbsc.c
index 03482be..09012d0 100644
--- a/src/libmsc/smpp_openbsc.c
+++ b/src/libmsc/smpp_openbsc.c
@@ -144,6 +144,10 @@
osmo_strlcpy(sms->src.addr, (char *)submit->source_addr,
sizeof(sms->src.addr));
+ /* This is a Delivery Acknowledgment. */
+ if (submit->esm_class == 0x08)
+ sms->is_report = true;
+
if (submit->esm_class & 0x40)
sms->ud_hdr_ind = 1;
--
To view, visit https://gerrit.osmocom.org/3649
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ib70e534840308ed315f7add440351e649de3f907
Gerrit-PatchSet: 1
Gerrit-Project: osmo-msc
Gerrit-Branch: master
Gerrit-Owner: Neels Hofmeyr <nhofm...@sysmocom.de>
Gerrit-Reviewer: Pablo Neira Ayuso <pa...@gnumonks.org>
