Merge branch 'laforge/smpp'
diff --git a/openbsc/configure.ac b/openbsc/configure.ac
index 86dab55..b56254c 100644
--- a/openbsc/configure.ac
+++ b/openbsc/configure.ac
@@ -41,6 +41,18 @@
])
AM_CONDITIONAL(BUILD_BSC, test "x$osmo_ac_build_bsc" = "xyes")
+AC_ARG_ENABLE([smpp], [AS_HELP_STRING([--enable-smpp], [Build the SMPP interface])],
+ [
+ PKG_CHECK_MODULES(LIBSMPP34, libsmpp34 >= 1.10)
+ osmo_ac_build_smpp="yes"
+ AC_DEFINE(BUILD_SMPP, 1, [Define if we want to build SMPP])
+ ],
+ [
+ osmo_ac_build_smpp="no"
+ ])
+AM_CONDITIONAL(BUILD_SMPP, test "x$osmo_ac_build_smpp" = "xyes")
+
+
PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 0.3.2)
PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 0.3.0)
PKG_CHECK_MODULES(LIBOSMOGSM, libosmogsm >= 0.3.0)
diff --git a/openbsc/include/openbsc/debug.h b/openbsc/include/openbsc/debug.h
index 0023b8c..84931af 100644
--- a/openbsc/include/openbsc/debug.h
+++ b/openbsc/include/openbsc/debug.h
@@ -32,6 +32,7 @@
DSNDCP,
DNAT,
DCTRL,
+ DSMPP,
Debug_LastEntry,
};
diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h
index dea4119..c6a40e3 100644
--- a/openbsc/include/openbsc/gsm_data.h
+++ b/openbsc/include/openbsc/gsm_data.h
@@ -271,12 +271,29 @@
struct ctrl_handle *ctrl;
};
+struct osmo_esme;
+
+enum gsm_sms_source_id {
+ SMS_SOURCE_UNKNOWN = 0,
+ SMS_SOURCE_MS, /* received from MS */
+ SMS_SOURCE_VTY, /* received from VTY */
+ SMS_SOURCE_SMPP, /* received via SMPP */
+};
+
#define SMS_HDR_SIZE 128
#define SMS_TEXT_SIZE 256
struct gsm_sms {
unsigned long long id;
struct gsm_subscriber *sender;
struct gsm_subscriber *receiver;
+ enum gsm_sms_source_id source;
+
+ struct {
+ struct osmo_esme *esme;
+ uint32_t sequence_nr;
+ int transaction_mode;
+ char msg_id[16];
+ } smpp;
unsigned long validity_minutes;
uint8_t reply_path_req;
diff --git a/openbsc/src/libcommon/debug.c b/openbsc/src/libcommon/debug.c
index fad5e27..d082492 100644
--- a/openbsc/src/libcommon/debug.c
+++ b/openbsc/src/libcommon/debug.c
@@ -161,6 +161,11 @@
.description = "Control interface",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
+ [DSMPP] = {
+ .name = "DSMPP",
+ .description = "SMPP interface for external SMS apps",
+ .enabled = 1, .loglevel = LOGL_DEBUG,
+ },
};
enum log_filter {
diff --git a/openbsc/src/libmsc/Makefile.am b/openbsc/src/libmsc/Makefile.am
index 4a1488d..89fee91 100644
--- a/openbsc/src/libmsc/Makefile.am
+++ b/openbsc/src/libmsc/Makefile.am
@@ -18,3 +18,6 @@
transaction.c \
osmo_msc.c
+if BUILD_SMPP
+libmsc_a_SOURCES += smpp_smsc.c smpp_openbsc.c
+endif
diff --git a/openbsc/src/libmsc/gsm_04_11.c b/openbsc/src/libmsc/gsm_04_11.c
index e695648..fe1b645 100644
--- a/openbsc/src/libmsc/gsm_04_11.c
+++ b/openbsc/src/libmsc/gsm_04_11.c
@@ -117,6 +117,10 @@
subscr_put(sms->sender);
if (sms->receiver)
subscr_put(sms->receiver);
+#ifdef BUILD_SMPP
+ if (sms->smpp.esme)
+ smpp_esme_put(sms->smpp.esme);
+#endif
talloc_free(sms);
}
diff --git a/openbsc/src/libmsc/smpp_openbsc.c b/openbsc/src/libmsc/smpp_openbsc.c
new file mode 100644
index 0000000..4a54e47
--- /dev/null
+++ b/openbsc/src/libmsc/smpp_openbsc.c
@@ -0,0 +1,307 @@
+/* OpenBSC SMPP 3.4 interface, SMSC-side implementation */
+
+/* (C) 2012 by Harald Welte <laforge@gnumonks.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdint.h>
+#include <errno.h>
+
+#include <smpp34.h>
+#include <smpp34_structs.h>
+#include <smpp34_params.h>
+
+#include <osmocom/core/utils.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/logging.h>
+#include <osmocom/core/talloc.h>
+#include <osmocom/gsm/protocol/gsm_04_11.h>
+
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/debug.h>
+#include <openbsc/db.h>
+#include <openbsc/gsm_04_11.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/signal.h>
+
+#include "smpp_smsc.h"
+
+/*! \brief find gsm_subscriber for a given SMPP NPI/TON/Address */
+static struct gsm_subscriber *subscr_by_dst(struct gsm_network *net,
+ uint8_t npi, uint8_t ton, const char *addr)
+{
+ struct gsm_subscriber *subscr = NULL;
+
+ switch (npi) {
+ case NPI_Land_Mobile_E212:
+ subscr = subscr_get_by_imsi(net, addr);
+ break;
+ case NPI_ISDN_E163_E164:
+ case NPI_Private:
+ subscr = subscr_get_by_extension(net, addr);
+ break;
+ default:
+ LOGP(DSMPP, LOGL_NOTICE, "Unsupported NPI: %u\n", npi);
+ break;
+ }
+
+ return subscr;
+}
+
+/*! \brief find a TLV with given tag in list of libsmpp34 TLVs */
+struct tlv_t *find_tlv(struct tlv_t *head, uint16_t tag)
+{
+ struct tlv_t *t;
+
+ for (t = head; t != NULL; t = t->next) {
+ if (t->tag == tag)
+ return t;
+ }
+ return NULL;
+}
+
+/*! \brief convert from submit_sm_t to gsm_sms */
+static int submit_to_sms(struct gsm_sms **psms, struct gsm_network *net,
+ const struct submit_sm_t *submit)
+{
+ struct gsm_subscriber *dest;
+ struct gsm_sms *sms;
+ struct tlv_t *t;
+ const uint8_t *sms_msg;
+ unsigned int sms_msg_len;
+
+ dest = subscr_by_dst(net, submit->dest_addr_npi,
+ submit->dest_addr_ton,
+ (const char *)submit->destination_addr);
+ if (!dest) {
+ LOGP(DSMS, LOGL_NOTICE, "SMPP SUBMIT-SM for unknown subscriber: "
+ "%s (NPI=%u)\n", submit->destination_addr,
+ submit->dest_addr_npi);
+ return ESME_RINVDSTADR;
+ }
+
+ t = find_tlv(submit->tlv, TLVID_message_payload);
+ if (t) {
+ if (submit->sm_length) {
+ /* ERROR: we cannot have botH! */
+ LOGP(DSMS, LOGL_ERROR, "SMPP Cannot have payload in "
+ "TLV _and_ in the header\n");
+ return ESME_ROPTPARNOTALLWD;
+ }
+ sms_msg = t->value.octet;
+ sms_msg_len = t->length;
+ } else if (submit->short_message && submit->sm_length) {
+ sms_msg = submit->short_message;
+ sms_msg_len = submit->sm_length;
+ } else {
+ sms_msg = NULL;
+ sms_msg_len = 0;
+ }
+
+ sms = sms_alloc();
+ sms->source = SMS_SOURCE_SMPP;
+ sms->smpp.sequence_nr = submit->sequence_number;
+ sms->receiver = dest;
+ strncpy(sms->dest_addr, dest->extension, sizeof(sms->dest_addr)-1);
+ sms->sender = subscr_get_by_id(net, 1);
+
+ if (submit->esm_class & 0x40)
+ sms->ud_hdr_ind = 1;
+
+ if (submit->esm_class & 0x80) {
+ sms->reply_path_req = 1;
+#warning Implement reply path
+ }
+
+ if (submit->data_coding == 0x00 || /* SMSC default */
+ submit->data_coding == 0x01 || /* GSM default alphabet */
+ (submit->data_coding & 0xFC) == 0xF0) { /* 03.38 DCS default */
+ uint8_t ud_len = 0;
+ sms->data_coding_scheme = GSM338_DCS_1111_7BIT;
+ if (sms->ud_hdr_ind) {
+ ud_len = *sms_msg + 1;
+ printf("copying %u bytes user data...\n", ud_len);
+ memcpy(sms->user_data, sms_msg,
+ OSMO_MIN(ud_len, sizeof(sms->user_data)));
+ sms_msg += ud_len;
+ sms_msg_len -= ud_len;
+ }
+ strncpy(sms->text, (char *)sms_msg,
+ OSMO_MIN(sizeof(sms->text)-1, sms_msg_len));
+ printf("encoding 7bit to offset %u text(%s)\n", ud_len, sms->text);
+ sms->user_data_len = gsm_7bit_encode(sms->user_data+ud_len, sms->text);
+ } else if (submit->data_coding == 0x02 ||
+ submit->data_coding == 0x04 ||
+ (submit->data_coding & 0xFC) == 0xF4) { /* 03.38 DCS 8bit */
+ /* 8-bit binary */
+ sms->data_coding_scheme = GSM338_DCS_1111_8BIT_DATA;
+ memcpy(sms->user_data, sms_msg, sms_msg_len);
+ sms->user_data_len = sms_msg_len;
+ } else if (submit->data_coding == 0x80) {
+ /* UCS-2 */
+ sms->data_coding_scheme = (2 << 2);
+ memcpy(sms->user_data, sms_msg, submit->sm_length);
+ sms->user_data_len = sms_msg_len;
+ } else {
+ sms_free(sms);
+ LOGP(DSMS, LOGL_ERROR, "SMPP Unknown Data Coding 0x%02x\n",
+ submit->data_coding);
+ return ESME_RUNKNOWNERR;
+ }
+
+ *psms = sms;
+ return ESME_ROK;
+}
+
+/*! \brief handle incoming libsmpp34 ssubmit_sm_t from remote ESME */
+int handle_smpp_submit(struct osmo_esme *esme, struct submit_sm_t *submit,
+ struct submit_sm_resp_t *submit_r)
+{
+ struct gsm_sms *sms;
+ int rc = -1;
+
+ rc = submit_to_sms(&sms, esme->smsc->priv, submit);
+ if (rc != ESME_ROK) {
+ submit_r->command_status = rc;
+ return 0;
+ }
+ smpp_esme_get(esme);
+ sms->smpp.esme = esme;
+ sms->protocol_id = submit->protocol_id;
+
+ switch (submit->esm_class & 3) {
+ case 0: /* default */
+ case 1: /* datagram */
+ case 3: /* store-and-forward */
+ rc = db_sms_store(sms);
+ if (rc < 0) {
+ LOGP(DSMS, LOGL_ERROR, "SMPP SUBMIT-SM: Unable to "
+ "store SMS in database\n");
+ sms_free(sms);
+ submit_r->command_status = ESME_RSYSERR;
+ return 0;
+ }
+ strcpy((char *)submit_r->message_id, "msg_id_not_implemented");
+ LOGP(DSMS, LOGL_INFO, "SMPP SUBMIT-SM: Stored in DB\n");
+ rc = 0;
+ break;
+ case 2: /* forward (i.e. transaction) mode */
+ LOGP(DSMS, LOGL_DEBUG, "SMPP SUBMIT-SM: Forwarding in "
+ "real time (Transaction/Forward mode)\n");
+ sms->smpp.transaction_mode = 1;
+ gsm411_send_sms_subscr(sms->receiver, sms);
+ rc = 1; /* don't send any response yet */
+ break;
+ }
+ return rc;
+}
+
+/*! \brief signal handler for status of attempted SMS deliveries */
+static int smpp_sms_cb(unsigned int subsys, unsigned int signal,
+ void *handler_data, void *signal_data)
+{
+ struct gsm_network *network = handler_data;
+ struct sms_signal_data *sig_sms = signal_data;
+ struct gsm_sms *sms = sig_sms->sms;
+ int rc = 0;
+
+ if (!sms)
+ return 0;
+
+ if (sms->source != SMS_SOURCE_SMPP)
+ return 0;
+
+ switch (signal) {
+ case S_SMS_UNKNOWN_ERROR:
+ if (sms->smpp.transaction_mode) {
+ /* Send back the SUBMIT-SM response with apropriate error */
+ LOGP(DSMS, LOGL_INFO, "SMPP SUBMIT-SM: Error\n");
+ rc = smpp_tx_submit_r(sms->smpp.esme,
+ sms->smpp.sequence_nr,
+ ESME_RDELIVERYFAILURE,
+ sms->smpp.msg_id);
+ }
+ break;
+ case S_SMS_DELIVERED:
+ /* SMS layer tells us the delivery has been completed */
+ if (sms->smpp.transaction_mode) {
+ /* Send back the SUBMIT-SM response */
+ LOGP(DSMS, LOGL_INFO, "SMPP SUBMIT-SM: Success\n");
+ rc = smpp_tx_submit_r(sms->smpp.esme,
+ sms->smpp.sequence_nr,
+ ESME_ROK, sms->smpp.msg_id);
+ }
+ break;
+ }
+
+ return rc;
+}
+
+/*! \brief signal handler for subscriber related signals */
+static int smpp_subscr_cb(unsigned int subsys, unsigned int signal,
+ void *handler_data, void *signal_data)
+{
+ struct gsm_subscriber *subscr = signal_data;
+ struct smsc *smsc = handler_data;
+ struct osmo_esme *esme;
+ uint8_t smpp_avail_status;
+
+ /* determine the smpp_avail_status depending on attach/detach */
+ switch (signal) {
+ case S_SUBSCR_ATTACHED:
+ smpp_avail_status = 0;
+ break;
+ case S_SUBSCR_DETACHED:
+ smpp_avail_status = 2;
+ break;
+ default:
+ return 0;
+ }
+
+ llist_for_each_entry(esme, &smsc->esme_list, list) {
+ /* we currently send an alert notification to each ESME that is
+ * connected, and do not require a (non-existant) delivery
+ * pending flag to be set before, FIXME: make this VTY
+ * configurable */
+ smpp_tx_alert(esme, TON_Subscriber_Number,
+ NPI_Land_Mobile_E212, subscr->imsi,
+ smpp_avail_status);
+ }
+
+ return 0;
+}
+
+/*! \brief Initialize the OpenBSC SMPP interface */
+int smpp_openbsc_init(struct gsm_network *net, uint16_t port)
+{
+ struct smsc *smsc = talloc_zero(net, struct smsc);
+ int rc;
+
+ smsc->priv = net;
+
+ rc = smpp_smsc_init(smsc, port);
+ if (rc < 0)
+ talloc_free(smsc);
+
+ osmo_signal_register_handler(SS_SMS, smpp_sms_cb, net);
+ osmo_signal_register_handler(SS_SUBSCR, smpp_subscr_cb, smsc);
+
+ return rc;
+}
diff --git a/openbsc/src/libmsc/smpp_smsc.c b/openbsc/src/libmsc/smpp_smsc.c
new file mode 100644
index 0000000..8957c8e
--- /dev/null
+++ b/openbsc/src/libmsc/smpp_smsc.c
@@ -0,0 +1,638 @@
+/* SMPP 3.4 interface, SMSC-side implementation */
+/* (C) 2012 by Harald Welte <laforge@gnumonks.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdint.h>
+#include <errno.h>
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#include <smpp34.h>
+#include <smpp34_structs.h>
+#include <smpp34_params.h>
+
+#include <osmocom/core/utils.h>
+#include <osmocom/core/socket.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/logging.h>
+#include <osmocom/core/write_queue.h>
+#include <osmocom/core/talloc.h>
+
+#include "smpp_smsc.h"
+
+#include <openbsc/debug.h>
+
+/*! \brief Ugly wrapper. libsmpp34 should do this itself! */
+#define SMPP34_UNPACK(rc, type, str, data, len) \
+ memset(str, 0, sizeof(*str)); \
+ rc = smpp34_unpack(type, str, data, len)
+
+enum emse_bind {
+ ESME_BIND_RX = 0x01,
+ ESME_BIND_TX = 0x02,
+};
+
+/*! \brief increaes the use/reference count */
+void smpp_esme_get(struct osmo_esme *esme)
+{
+ esme->use++;
+}
+
+static void esme_destroy(struct osmo_esme *esme)
+{
+ osmo_wqueue_clear(&esme->wqueue);
+ if (esme->wqueue.bfd.fd >= 0) {
+ osmo_fd_unregister(&esme->wqueue.bfd);
+ close(esme->wqueue.bfd.fd);
+ }
+ llist_del(&esme->list);
+ talloc_free(esme);
+}
+
+/*! \brief decrease the use/reference count, free if it is 0 */
+void smpp_esme_put(struct osmo_esme *esme)
+{
+ esme->use--;
+ if (esme->use <= 0)
+ esme_destroy(esme);
+}
+
+static struct osmo_esme *
+esme_by_system_id(const struct smsc *smsc, char *system_id)
+{
+ struct osmo_esme *e;
+
+ llist_for_each_entry(e, &smsc->esme_list, list) {
+ if (!strcmp(e->system_id, system_id))
+ return e;
+ }
+ return NULL;
+}
+
+
+/*! \brief initialize the libsmpp34 data structure for a response */
+#define INIT_RESP(type, resp, req) { \
+ memset((resp), 0, sizeof(*(resp))); \
+ (resp)->command_length = 0; \
+ (resp)->command_id = type; \
+ (resp)->command_status = ESME_ROK; \
+ (resp)->sequence_number = (req)->sequence_number; \
+}
+
+/*! \brief pack a libsmpp34 data strcutrure and send it to the ESME */
+#define PACK_AND_SEND(esme, ptr) pack_and_send(esme, (ptr)->command_id, ptr)
+static int pack_and_send(struct osmo_esme *esme, uint32_t type, void *ptr)
+{
+ struct msgb *msg = msgb_alloc(4096, "SMPP_Tx");
+ int rc, rlen;
+ if (!msg)
+ return -ENOMEM;
+
+ rc = smpp34_pack(type, msg->tail, msgb_tailroom(msg), &rlen, ptr);
+ if (rc != 0) {
+ LOGP(DSMPP, LOGL_ERROR, "[%s] Error during smpp34_pack(): %s\n",
+ esme->system_id, smpp34_strerror);
+ msgb_free(msg);
+ return -EINVAL;
+ }
+ msgb_put(msg, rlen);
+
+ return osmo_wqueue_enqueue(&esme->wqueue, msg);
+}
+
+/*! \brief transmit a generic NACK to a remote ESME */
+static int smpp_tx_gen_nack(struct osmo_esme *esme, uint32_t seq, uint32_t status)
+{
+ struct generic_nack_t nack;
+ char buf[SMALL_BUFF];
+
+ nack.command_length = 0;
+ nack.command_id = GENERIC_NACK;
+ nack.sequence_number = seq;
+ nack.command_status = status;
+
+ LOGP(DSMPP, LOGL_ERROR, "[%s] Tx GENERIC NACK: %s\n",
+ esme->system_id, str_command_status(status, buf));
+
+ return PACK_AND_SEND(esme, &nack);
+}
+
+/*! \brief retrieve SMPP command ID from a msgb */
+static inline uint32_t smpp_msgb_cmdid(struct msgb *msg)
+{
+ uint8_t *tmp = msgb_data(msg) + 4;
+ return ntohl(*(uint32_t *)tmp);
+}
+
+/*! \brief retrieve SMPP sequence number from a msgb */
+static inline uint32_t smpp_msgb_seq(struct msgb *msg)
+{
+ uint8_t *tmp = msgb_data(msg);
+ return ntohl(*(uint32_t *)tmp);
+}
+
+/*! \brief handle an incoming SMPP generic NACK */
+static int smpp_handle_gen_nack(struct osmo_esme *esme, struct msgb *msg)
+{
+ struct generic_nack_t nack;
+ char buf[SMALL_BUFF];
+ int rc;
+
+ SMPP34_UNPACK(rc, GENERIC_NACK, &nack, msgb_data(msg),
+ msgb_length(msg));
+ if (rc < 0) {
+ LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n",
+ esme->system_id, smpp34_strerror);
+ return rc;
+ }
+
+ LOGP(DSMPP, LOGL_ERROR, "[%s] Rx GENERIC NACK: %s\n",
+ esme->system_id, str_command_status(nack.command_status, buf));
+
+ return 0;
+}
+
+/*! \brief handle an incoming SMPP BIND RECEIVER */
+static int smpp_handle_bind_rx(struct osmo_esme *esme, struct msgb *msg)
+{
+ struct bind_receiver_t bind;
+ struct bind_receiver_resp_t bind_r;
+ int rc;
+
+ SMPP34_UNPACK(rc, BIND_RECEIVER, &bind, msgb_data(msg),
+ msgb_length(msg));
+ if (rc < 0) {
+ LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n",
+ esme->system_id, smpp34_strerror);
+ return rc;
+ }
+
+ INIT_RESP(BIND_TRANSMITTER_RESP, &bind_r, &bind);
+
+ LOGP(DSMPP, LOGL_INFO, "[%s] Rx BIND Rx from (Version %02x)\n",
+ bind.system_id, bind.interface_version);
+
+ if (bind.interface_version != SMPP_VERSION) {
+ bind_r.command_status = ESME_RSYSERR;
+ goto err;
+ }
+
+ if (esme->bind_flags) {
+ bind_r.command_status = ESME_RALYBND;
+ goto err;
+ }
+
+ esme->smpp_version = bind.interface_version;
+ snprintf(esme->system_id, sizeof(esme->system_id), "%s",
+ bind.system_id);
+ esme->bind_flags = ESME_BIND_RX;
+
+ /* FIXME */
+err:
+ return 0;
+}
+
+/*! \brief handle an incoming SMPP BIND TRANSMITTER */
+static int smpp_handle_bind_tx(struct osmo_esme *esme, struct msgb *msg)
+{
+ struct bind_transmitter_t bind;
+ struct bind_transmitter_resp_t bind_r;
+ struct tlv_t tlv;
+ int rc;
+
+ SMPP34_UNPACK(rc, BIND_TRANSMITTER, &bind, msgb_data(msg),
+ msgb_length(msg));
+ if (rc < 0) {
+ LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n",
+ esme->system_id, smpp34_strerror);
+ return rc;
+ }
+
+ INIT_RESP(BIND_TRANSMITTER_RESP, &bind_r, &bind);
+
+ LOGP(DSMPP, LOGL_INFO, "[%s] Rx BIND Tx (Version %02x)\n",
+ bind.system_id, bind.interface_version);
+
+ if (bind.interface_version != SMPP_VERSION) {
+ bind_r.command_status = ESME_RSYSERR;
+ goto err;
+ }
+
+ if (esme->bind_flags) {
+ bind_r.command_status = ESME_RALYBND;
+ goto err;
+ }
+
+ esme->smpp_version = bind.interface_version;
+ snprintf(esme->system_id, sizeof(esme->system_id), "%s", bind.system_id);
+ esme->bind_flags = ESME_BIND_TX;
+
+ /* build response */
+ snprintf((char *)bind_r.system_id, sizeof(bind_r.system_id), "%s",
+ esme->smsc->system_id);
+
+ /* add interface version TLV */
+ tlv.tag = TLVID_sc_interface_version;
+ tlv.length = sizeof(uint8_t);
+ tlv.value.val16 = esme->smpp_version;
+ build_tlv(&bind_r.tlv, &tlv);
+
+err:
+ return PACK_AND_SEND(esme, &bind_r);
+}
+
+/*! \brief handle an incoming SMPP BIND TRANSCEIVER */
+static int smpp_handle_bind_trx(struct osmo_esme *esme, struct msgb *msg)
+{
+ struct bind_transceiver_t bind;
+ struct bind_transceiver_resp_t bind_r;
+ int rc;
+
+ SMPP34_UNPACK(rc, BIND_TRANSCEIVER, &bind, msgb_data(msg),
+ msgb_length(msg));
+ if (rc < 0) {
+ LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n",
+ esme->system_id, smpp34_strerror);
+ return rc;
+ }
+
+ INIT_RESP(BIND_TRANSMITTER_RESP, &bind_r, &bind);
+
+ LOGP(DSMPP, LOGL_INFO, "[%s] Rx BIND Trx (Version %02x)\n",
+ bind.system_id, bind.interface_version);
+
+ if (bind.interface_version != SMPP_VERSION) {
+ bind_r.command_status = ESME_RSYSERR;
+ goto err;
+ }
+
+ if (esme->bind_flags) {
+ bind_r.command_status = ESME_RALYBND;
+ goto err;
+ }
+
+ esme->smpp_version = bind.interface_version;
+ snprintf(esme->system_id, sizeof(esme->system_id), "%s", bind.system_id);
+ esme->bind_flags |= ESME_BIND_TX | ESME_BIND_RX;
+
+ /* FIXME */
+err:
+ return 0;
+}
+
+/*! \brief handle an incoming SMPP UNBIND */
+static int smpp_handle_unbind(struct osmo_esme *esme, struct msgb *msg)
+{
+ struct unbind_t unbind;
+ struct unbind_resp_t unbind_r;
+ int rc;
+
+ SMPP34_UNPACK(rc, UNBIND, &unbind, msgb_data(msg),
+ msgb_length(msg));
+ if (rc < 0) {
+ LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n",
+ esme->system_id, smpp34_strerror);
+ return rc;
+ }
+
+ INIT_RESP(UNBIND_RESP, &unbind_r, &unbind);
+
+ LOGP(DSMPP, LOGL_INFO, "[%s] Rx UNBIND\n", esme->system_id);
+
+ if (esme->bind_flags == 0) {
+ unbind_r.command_status = ESME_RINVBNDSTS;
+ goto err;
+ }
+
+ esme->bind_flags = 0;
+err:
+ return PACK_AND_SEND(esme, &unbind_r);
+}
+
+/*! \brief handle an incoming SMPP ENQUIRE LINK */
+static int smpp_handle_enq_link(struct osmo_esme *esme, struct msgb *msg)
+{
+ struct enquire_link_t enq;
+ struct enquire_link_resp_t enq_r;
+ int rc;
+
+ SMPP34_UNPACK(rc, ENQUIRE_LINK, &enq, msgb_data(msg),
+ msgb_length(msg));
+ if (rc < 0) {
+ LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n",
+ esme->system_id, smpp34_strerror);
+ return rc;
+ }
+
+ LOGP(DSMPP, LOGL_DEBUG, "[%s] Rx Enquire Link\n", esme->system_id);
+
+ INIT_RESP(ENQUIRE_LINK_RESP, &enq_r, &enq);
+
+ LOGP(DSMPP, LOGL_DEBUG, "[%s] Tx Enquire Link Response\n", esme->system_id);
+
+ return PACK_AND_SEND(esme, &enq_r);
+}
+
+/*! \brief send a SUBMIT-SM RESPONSE to a remote ESME */
+int smpp_tx_submit_r(struct osmo_esme *esme, uint32_t sequence_nr,
+ uint32_t command_status, char *msg_id)
+{
+ struct submit_sm_resp_t submit_r;
+
+ memset(&submit_r, 0, sizeof(submit_r));
+ submit_r.command_length = 0;
+ submit_r.command_id = SUBMIT_SM_RESP;
+ submit_r.command_status = command_status;
+ submit_r.sequence_number= sequence_nr;
+ snprintf((char *) submit_r.message_id, sizeof(submit_r.message_id), "%s", msg_id);
+
+ return PACK_AND_SEND(esme, &submit_r);
+}
+
+static const struct value_string smpp_avail_strs[] = {
+ { 0, "Available" },
+ { 1, "Denied" },
+ { 2, "Unavailable" },
+ { 0, NULL }
+};
+
+/*! \brief send an ALERT_NOTIFICATION to a remote ESME */
+int smpp_tx_alert(struct osmo_esme *esme, uint8_t ton, uint8_t npi,
+ const char *addr, uint8_t avail_status)
+{
+ struct alert_notification_t alert;
+ struct tlv_t tlv;
+
+ memset(&alert, 0, sizeof(alert));
+ alert.command_length = 0;
+ alert.command_id = ALERT_NOTIFICATION;
+ alert.command_status = ESME_ROK;
+ alert.sequence_number = esme->own_seq_nr++;
+ alert.source_addr_ton = ton;
+ alert.source_addr_npi = npi;
+ snprintf((char *)alert.source_addr, sizeof(alert.source_addr), "%s", addr);
+
+ tlv.tag = TLVID_ms_availability_status;
+ tlv.length = sizeof(uint8_t);
+ tlv.value.val08 = avail_status;
+ build_tlv(&alert.tlv, &tlv);
+
+ LOGP(DSMPP, LOGL_DEBUG, "[%s] Tx ALERT_NOTIFICATION (%s/%u/%u): %s\n",
+ esme->system_id, alert.source_addr, alert.source_addr_ton,
+ alert.source_addr_npi,
+ get_value_string(smpp_avail_strs, avail_status));
+
+ return PACK_AND_SEND(esme, &alert);
+}
+
+/*! \brief handle an incoming SMPP SUBMIT-SM */
+static int smpp_handle_submit(struct osmo_esme *esme, struct msgb *msg)
+{
+ struct submit_sm_t submit;
+ struct submit_sm_resp_t submit_r;
+ int rc;
+
+ memset(&submit, 0, sizeof(submit));
+ SMPP34_UNPACK(rc, SUBMIT_SM, &submit, msgb_data(msg),
+ msgb_length(msg));
+ if (rc < 0) {
+ LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n",
+ esme->system_id, smpp34_strerror);
+ return rc;
+ }
+
+ INIT_RESP(SUBMIT_SM_RESP, &submit_r, &submit);
+
+ if (!(esme->bind_flags & ESME_BIND_TX)) {
+ submit_r.command_status = ESME_RINVBNDSTS;
+ return PACK_AND_SEND(esme, &submit_r);
+ }
+
+ LOGP(DSMPP, LOGL_INFO, "[%s] Rx SUBMIT-SM (%s/%u/%u)\n",
+ esme->system_id, submit.destination_addr,
+ submit.dest_addr_ton, submit.dest_addr_npi);
+
+ INIT_RESP(SUBMIT_SM_RESP, &submit_r, &submit);
+
+ rc = handle_smpp_submit(esme, &submit, &submit_r);
+ if (rc == 0)
+ return PACK_AND_SEND(esme, &submit_r);
+
+ return rc;
+}
+
+/*! \brief one complete SMPP PDU from the ESME has been received */
+static int smpp_pdu_rx(struct osmo_esme *esme, struct msgb *msg)
+{
+ uint32_t cmd_id = smpp_msgb_cmdid(msg);
+ int rc = 0;
+
+ LOGP(DSMPP, LOGL_DEBUG, "[%s] smpp_pdu_rx(%s)\n", esme->system_id,
+ osmo_hexdump(msgb_data(msg), msgb_length(msg)));
+
+ switch (cmd_id) {
+ case GENERIC_NACK:
+ rc = smpp_handle_gen_nack(esme, msg);
+ break;
+ case BIND_RECEIVER:
+ rc = smpp_handle_bind_rx(esme, msg);
+ break;
+ case BIND_TRANSMITTER:
+ rc = smpp_handle_bind_tx(esme, msg);
+ break;
+ case BIND_TRANSCEIVER:
+ rc = smpp_handle_bind_trx(esme, msg);
+ break;
+ case UNBIND:
+ rc = smpp_handle_unbind(esme, msg);
+ break;
+ case ENQUIRE_LINK:
+ rc = smpp_handle_enq_link(esme, msg);
+ break;
+ case SUBMIT_SM:
+ rc = smpp_handle_submit(esme, msg);
+ break;
+ case DELIVER_SM:
+ break;
+ case DATA_SM:
+ break;
+ case CANCEL_SM:
+ case QUERY_SM:
+ case REPLACE_SM:
+ case SUBMIT_MULTI:
+ LOGP(DSMPP, LOGL_NOTICE, "[%s] Unimplemented PDU Commmand "
+ "0x%08x\n", esme->system_id, cmd_id);
+ break;
+ default:
+ LOGP(DSMPP, LOGL_ERROR, "[%s] Unknown PDU Command 0x%08x\n",
+ esme->system_id, cmd_id);
+ rc = smpp_tx_gen_nack(esme, smpp_msgb_seq(msg), ESME_RINVCMDID);
+ break;
+ }
+
+ return rc;
+}
+
+/* !\brief call-back when per-ESME TCP socket has some data to be read */
+static int esme_link_read_cb(struct osmo_fd *ofd)
+{
+ struct osmo_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;
+ smpp_esme_put(esme);
+
+ return 0;
+}
+
+/* call-back of write queue once it wishes to write a message to the socket */
+static void esme_link_write_cb(struct osmo_fd *ofd, struct msgb *msg)
+{
+ struct osmo_esme *esme = ofd->data;
+ int rc;
+
+ rc = write(ofd->fd, msgb_data(msg), msgb_length(msg));
+ if (rc == 0) {
+ osmo_fd_unregister(&esme->wqueue.bfd);
+ close(esme->wqueue.bfd.fd);
+ esme->wqueue.bfd.fd = -1;
+ smpp_esme_put(esme);
+ } else if (rc < msgb_length(msg)) {
+ LOGP(DSMPP, LOGL_ERROR, "[%s] Short write\n", esme->system_id);
+ return;
+ }
+}
+
+/* callback for already-accepted new TCP socket */
+static int link_accept_cb(struct smsc *smsc, int fd,
+ struct sockaddr_storage *s, socklen_t s_len)
+{
+ struct osmo_esme *esme = talloc_zero(smsc, struct osmo_esme);
+ if (!esme)
+ return -ENOMEM;
+
+ smpp_esme_get(esme);
+ esme->own_seq_nr = rand();
+ esme->smsc = smsc;
+ osmo_wqueue_init(&esme->wqueue, 10);
+ esme->wqueue.bfd.fd = fd;
+ esme->wqueue.bfd.data = esme;
+ esme->wqueue.bfd.when = BSC_FD_READ;
+ osmo_fd_register(&esme->wqueue.bfd);
+
+ esme->wqueue.read_cb = esme_link_read_cb;
+ esme->wqueue.write_cb = esme_link_write_cb;
+
+ esme->sa_len = OSMO_MIN(sizeof(esme->sa), s_len);
+ memcpy(&esme->sa, s, esme->sa_len);
+
+ llist_add_tail(&esme->list, &smsc->esme_list);
+
+ return 0;
+}
+
+/* callback of listening TCP socket */
+static int smsc_fd_cb(struct osmo_fd *ofd, unsigned int what)
+{
+ int rc;
+ struct sockaddr_storage sa;
+ socklen_t sa_len = sizeof(sa);
+
+ rc = accept(ofd->fd, (struct sockaddr *)&sa, &sa_len);
+ if (rc < 0) {
+ LOGP(DSMPP, LOGL_ERROR, "Accept returns %d (%s)\n",
+ rc, strerror(errno));
+ return rc;
+ }
+ return link_accept_cb(ofd->data, rc, &sa, sa_len);
+}
+
+/*! \brief Initialize the SMSC-side SMPP implementation */
+int smpp_smsc_init(struct smsc *smsc, uint16_t port)
+{
+ int rc;
+
+ INIT_LLIST_HEAD(&smsc->esme_list);
+ smsc->listen_ofd.data = smsc;
+ smsc->listen_ofd.cb = smsc_fd_cb;
+ rc = osmo_sock_init_ofd(&smsc->listen_ofd, AF_UNSPEC, SOCK_STREAM,
+ IPPROTO_TCP, NULL, port, OSMO_SOCK_F_BIND);
+
+ return rc;
+}
diff --git a/openbsc/src/libmsc/smpp_smsc.h b/openbsc/src/libmsc/smpp_smsc.h
new file mode 100644
index 0000000..b1617e6
--- /dev/null
+++ b/openbsc/src/libmsc/smpp_smsc.h
@@ -0,0 +1,65 @@
+#ifndef _SMPP_SMSC_H
+#define _SMPP_SMSC_H
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#include <osmocom/core/utils.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/write_queue.h>
+
+#include <smpp34.h>
+#include <smpp34_structs.h>
+#include <smpp34_params.h>
+
+enum esme_read_state {
+ READ_ST_IN_LEN = 0,
+ READ_ST_IN_MSG = 1,
+};
+
+struct osmo_esme {
+ struct llist_head list;
+ struct smsc *smsc;
+
+ int use;
+
+ uint32_t own_seq_nr;
+
+ struct osmo_wqueue wqueue;
+ struct sockaddr_storage sa;
+ socklen_t sa_len;
+
+ enum esme_read_state read_state;
+ uint32_t read_len;
+ uint32_t read_idx;
+ struct msgb *read_msg;
+
+ uint8_t smpp_version;
+ char system_id[16+1];
+
+ uint8_t bind_flags;
+};
+
+struct smsc {
+ struct osmo_fd listen_ofd;
+ struct llist_head esme_list;
+ char system_id[16+1];
+ void *priv;
+};
+
+
+int smpp_smsc_init(struct smsc *smsc, uint16_t port);
+
+void smpp_esme_get(struct osmo_esme *esme);
+void smpp_esme_put(struct osmo_esme *esme);
+
+int smpp_tx_submit_r(struct osmo_esme *esme, uint32_t sequence_nr,
+ uint32_t command_status, char *msg_id);
+
+int smpp_tx_alert(struct osmo_esme *esme, uint8_t ton, uint8_t npi,
+ const char *addr, uint8_t avail_status);
+
+int handle_smpp_submit(struct osmo_esme *esme, struct submit_sm_t *submit,
+ struct submit_sm_resp_t *submit_r);
+
+#endif
diff --git a/openbsc/src/osmo-nitb/Makefile.am b/openbsc/src/osmo-nitb/Makefile.am
index 48d9ce2..dc69232 100644
--- a/openbsc/src/osmo-nitb/Makefile.am
+++ b/openbsc/src/osmo-nitb/Makefile.am
@@ -1,5 +1,8 @@
INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir)
-AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(LIBOSMOABIS_CFLAGS) $(COVERAGE_CFLAGS)
+AM_CFLAGS=-Wall $(COVERAGE_CFLAGS) \
+ $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBOSMOVTY_CFLAGS) \
+ $(LIBOSMOABIS_CFLAGS) $(LIBSMPP34_CFLAGS)
+
AM_LDFLAGS = $(COVERAGE_LDFLAGS)
bin_PROGRAMS = osmo-nitb
@@ -12,5 +15,6 @@
$(top_builddir)/src/libtrau/libtrau.a \
$(top_builddir)/src/libctrl/libctrl.a \
$(top_builddir)/src/libcommon/libcommon.a \
- -ldbi -ldl $(LIBCRYPT) $(LIBOSMOGSM_LIBS) \
- $(LIBOSMOVTY_LIBS) $(LIBOSMOABIS_LIBS) $(LIBOSMOCORE_LIBS)
+ -ldbi -ldl $(LIBCRYPT) \
+ $(LIBOSMOGSM_LIBS) $(LIBOSMOVTY_LIBS) $(LIBOSMOCORE_LIBS) \
+ $(LIBOSMOABIS_LIBS) $(LIBSMPP34_LIBS)
diff --git a/openbsc/src/osmo-nitb/bsc_hack.c b/openbsc/src/osmo-nitb/bsc_hack.c
index 7427ead..b82a026 100644
--- a/openbsc/src/osmo-nitb/bsc_hack.c
+++ b/openbsc/src/osmo-nitb/bsc_hack.c
@@ -312,7 +312,10 @@
/* start the SMS queue */
if (sms_queue_start(bsc_gsmnet, 20) != 0)
return -1;
-
+#ifdef BUILD_SMPP
+ if (smpp_openbsc_init(bsc_gsmnet, 6040) < 0)
+ return -1;
+#endif
if (daemonize) {
rc = osmo_daemonize();
if (rc < 0) {