SMPP: Implement ALERT NOTIFICATION on attach/detach of subscribers
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@ -238,6 +238,40 @@ static int smpp_sms_cb(unsigned int subsys, unsigned int signal,
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return rc;
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}
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/*! \brief signal handler for subscriber related signals */
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static int smpp_subscr_cb(unsigned int subsys, unsigned int signal,
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void *handler_data, void *signal_data)
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{
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struct gsm_subscriber *subscr = signal_data;
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struct smsc *smsc = handler_data;
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struct osmo_esme *esme;
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uint8_t smpp_avail_status;
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/* determine the smpp_avail_status depending on attach/detach */
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switch (signal) {
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case S_SUBSCR_ATTACHED:
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smpp_avail_status = 0;
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break;
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case S_SUBSCR_DETACHED:
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smpp_avail_status = 2;
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break;
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default:
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return 0;
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}
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llist_for_each_entry(esme, &smsc->esme_list, list) {
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/* we currently send an alert notification to each ESME that is
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* connected, and do not require a (non-existant) delivery
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* pending flag to be set before, FIXME: make this VTY
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* configurable */
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smpp_tx_alert(esme, TON_Subscriber_Number,
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NPI_Land_Mobile_E212, subscr->imsi,
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smpp_avail_status);
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}
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return 0;
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}
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/*! \brief Initialize the OpenBSC SMPP interface */
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int smpp_openbsc_init(struct gsm_network *net, uint16_t port)
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{
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@ -251,7 +285,7 @@ int smpp_openbsc_init(struct gsm_network *net, uint16_t port)
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talloc_free(smsc);
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osmo_signal_register_handler(SS_SMS, smpp_sms_cb, net);
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osmo_signal_register_handler(SS_SUBSCR, smpp_subscr_cb, smsc);
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return rc;
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}
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@ -341,11 +341,47 @@ int smpp_tx_submit_r(struct osmo_esme *esme, uint32_t sequence_nr,
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submit_r.command_id = SUBMIT_SM_RESP;
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submit_r.command_status = command_status;
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submit_r.sequence_number= sequence_nr;
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snprintf(submit_r.message_id, sizeof(submit_r.message_id), "%s", msg_id);
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snprintf((char *) submit_r.message_id, sizeof(submit_r.message_id), "%s", msg_id);
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return PACK_AND_SEND(esme, &submit_r);
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}
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static const struct value_string smpp_avail_strs[] = {
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{ 0, "Available" },
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{ 1, "Denied" },
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{ 2, "Unavailable" },
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{ 0, NULL }
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};
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/*! \brief send an ALERT_NOTIFICATION to a remote ESME */
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int smpp_tx_alert(struct osmo_esme *esme, uint8_t ton, uint8_t npi,
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const char *addr, uint8_t avail_status)
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{
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struct alert_notification_t alert;
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struct tlv_t tlv;
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memset(&alert, 0, sizeof(alert));
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alert.command_length = 0;
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alert.command_id = ALERT_NOTIFICATION;
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alert.command_status = ESME_ROK;
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alert.sequence_number = esme->own_seq_nr++;
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alert.source_addr_ton = ton;
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alert.source_addr_npi = npi;
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snprintf(alert.source_addr, sizeof(alert.source_addr), "%s", addr);
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tlv.tag = TLVID_ms_availability_status;
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tlv.length = sizeof(uint8_t);
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tlv.value.val08 = avail_status;
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build_tlv(&alert.tlv, &tlv);
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LOGP(DSMPP, LOGL_DEBUG, "[%s] Tx ALERT_NOTIFICATION (%s/%u/%u): %s\n",
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esme->system_id, alert.source_addr, alert.source_addr_ton,
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alert.source_addr_npi,
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get_value_string(smpp_avail_strs, avail_status));
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return PACK_AND_SEND(esme, &alert);
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}
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/*! \brief handle an incoming SMPP SUBMIT-SM */
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static int smpp_handle_submit(struct osmo_esme *esme, struct msgb *msg)
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{
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@ -524,6 +560,7 @@ static int link_accept_cb(struct smsc *smsc, int fd,
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return -ENOMEM;
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smpp_esme_get(esme);
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esme->own_seq_nr = rand();
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esme->smsc = smsc;
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osmo_wqueue_init(&esme->wqueue, 10);
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esme->wqueue.bfd.fd = fd;
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@ -23,6 +23,8 @@ struct osmo_esme {
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int use;
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uint32_t own_seq_nr;
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struct osmo_wqueue wqueue;
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struct sockaddr_storage sa;
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socklen_t sa_len;
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@ -54,6 +56,9 @@ void smpp_esme_put(struct osmo_esme *esme);
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int smpp_tx_submit_r(struct osmo_esme *esme, uint32_t sequence_nr,
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uint32_t command_status, char *msg_id);
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int smpp_tx_alert(struct osmo_esme *esme, uint8_t ton, uint8_t npi,
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const char *addr, uint8_t avail_status);
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int handle_smpp_submit(struct osmo_esme *esme, struct submit_sm_t *submit,
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struct submit_sm_resp_t *submit_r);
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