static int smpp_handle_deliver(struct esme *esme, struct msgb *msg)
{
struct deliver_sm_t deliver;
struct deliver_sm_resp_t deliver_r;
struct submit_sm_t submit;
int rc;
memset(&deliver, 0, sizeof(deliver));
SMPP34_UNPACK(rc, DELIVER_SM, &deliver, msgb_data(msg), msgb_length(msg));
if (rc < 0)
return rc;
INIT_RESP(DELIVER_SM_RESP, &deliver_r, &deliver);
PACK_AND_SEND(esme, &deliver_r);
memset(&submit, 0, sizeof(submit));
submit.command_id = SUBMIT_SM;
submit.command_status = ESME_ROK;
submit.sequence_number = esme_inc_seq_nr(esme);
submit.dest_addr_ton = deliver.source_addr_ton;
submit.dest_addr_npi = deliver.source_addr_npi;
memcpy(submit.destination_addr, deliver.source_addr,
OSMO_MIN(sizeof(submit.destination_addr),
sizeof(deliver.source_addr)));
submit.source_addr_ton = deliver.dest_addr_ton;
submit.source_addr_npi = deliver.dest_addr_npi;
memcpy(submit.source_addr, deliver.destination_addr,
OSMO_MIN(sizeof(submit.source_addr),
sizeof(deliver.destination_addr)));
submit.esm_class = deliver.esm_class;
submit.protocol_id = deliver.protocol_id;
submit.priority_flag = deliver.priority_flag;
memcpy(submit.schedule_delivery_time, deliver.schedule_delivery_time,
OSMO_MIN(sizeof(submit.schedule_delivery_time),
sizeof(deliver.schedule_delivery_time)));
memcpy(submit.validity_period, deliver.validity_period,
OSMO_MIN(sizeof(submit.validity_period),
sizeof(deliver.validity_period)));
submit.registered_delivery = deliver.registered_delivery;
submit.replace_if_present_flag = deliver.replace_if_present_flag;
submit.data_coding = deliver.data_coding;
submit.sm_default_msg_id = deliver.sm_default_msg_id;
submit.sm_length = deliver.sm_length;
memcpy(submit.short_message, deliver.short_message,
OSMO_MIN(sizeof(submit.short_message),
sizeof(deliver.short_message)));
/* FIXME: TLV? */
return PACK_AND_SEND(esme, &submit);
}
/*! \brief Store the last SID frame in lchan context
* \param[in] lchan Logical channel on which we check scheduling
* \param[in] l1_payload buffer with SID data
* \param[in] length length of l1_payload
* \param[in] fn Frame Number for which we check scheduling
* \param[in] update 0 if SID_FIRST, 1 if SID_UPDATE, -1 if not AMR SID
*/
void dtx_cache_payload(struct gsm_lchan *lchan, const uint8_t *l1_payload,
size_t length, uint32_t fn, int update)
{
size_t amr = (update < 0) ? 0 : 2,
copy_len = OSMO_MIN(length + 1,
ARRAY_SIZE(lchan->tch.dtx.cache) - amr);
lchan->tch.dtx.len = copy_len + amr;
/* SID FIRST is special because it's both sent and cached: */
if (update == 0) {
lchan->tch.dtx.is_update = false; /* Mark SID FIRST explicitly */
/* for non-AMR case - always update FN for incoming SID FIRST */
if (!amr ||
(dtx_dl_amr_enabled(lchan) &&
lchan->tch.dtx.dl_amr_fsm->state != ST_SID_U))
lchan->tch.dtx.fn = fn;
/* for AMR case - do not update FN if SID FIRST arrives in a
middle of silence: this should not be happening according to
the spec */
}
memcpy(lchan->tch.dtx.cache + amr, l1_payload, copy_len);
}
/* FIXME: merge with smpp_smsc.c */
static int esme_read_cb(struct osmo_fd *ofd)
{
struct esme *esme = ofd->data;
uint32_t len;
uint8_t *lenptr = (uint8_t *) &len;
uint8_t *cur;
struct msgb *msg;
int rdlen;
int rc;
switch (esme->read_state) {
case READ_ST_IN_LEN:
rdlen = sizeof(uint32_t) - esme->read_idx;
rc = read(ofd->fd, lenptr + esme->read_idx, rdlen);
if (rc < 0) {
LOGP(DSMPP, LOGL_ERROR, "[%s] read returned %d\n",
esme->system_id, rc);
} else if (rc == 0) {
goto dead_socket;
} else
esme->read_idx += rc;
if (esme->read_idx >= sizeof(uint32_t)) {
esme->read_len = ntohl(len);
msg = msgb_alloc(esme->read_len, "SMPP Rx");
if (!msg)
return -ENOMEM;
esme->read_msg = msg;
cur = msgb_put(msg, sizeof(uint32_t));
memcpy(cur, lenptr, sizeof(uint32_t));
esme->read_state = READ_ST_IN_MSG;
esme->read_idx = sizeof(uint32_t);
}
break;
case READ_ST_IN_MSG:
msg = esme->read_msg;
rdlen = esme->read_len - esme->read_idx;
rc = read(ofd->fd, msg->tail, OSMO_MIN(rdlen, msgb_tailroom(msg)));
if (rc < 0) {
LOGP(DSMPP, LOGL_ERROR, "[%s] read returned %d\n",
esme->system_id, rc);
} else if (rc == 0) {
goto dead_socket;
} else {
esme->read_idx += rc;
msgb_put(msg, rc);
}
if (esme->read_idx >= esme->read_len) {
rc = smpp_pdu_rx(esme, esme->read_msg);
esme->read_msg = NULL;
esme->read_idx = 0;
esme->read_len = 0;
esme->read_state = READ_ST_IN_LEN;
}
break;
}
return 0;
dead_socket:
msgb_free(esme->read_msg);
osmo_fd_unregister(&esme->wqueue.bfd);
close(esme->wqueue.bfd.fd);
esme->wqueue.bfd.fd = -1;
exit(2342);
return 0;
}