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Merge branch 'laforge/smpp'

This commit is contained in:
Harald Welte 2012-11-16 22:17:49 +01:00
parent eedb45362d 6c7680d726
commit 0a1a312311
11 changed files with 1063 additions and 4 deletions
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12
openbsc/configure.ac
View File

@ -41,6 +41,18 @@ AC_ARG_ENABLE([osmo-bsc], [AS_HELP_STRING([--enable-osmo-bsc], [Build the Osmo B
])
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)

1
openbsc/include/openbsc/debug.h
View File

@ -32,6 +32,7 @@ enum {
DSNDCP,
DNAT,
DCTRL,
DSMPP,
Debug_LastEntry,
};

17
openbsc/include/openbsc/gsm_data.h
View File

@ -271,12 +271,29 @@ struct gsm_network {
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;

5
openbsc/src/libcommon/debug.c
View File

@ -161,6 +161,11 @@ static const struct log_info_cat default_categories[] = {
.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 {

3
openbsc/src/libmsc/Makefile.am
View File

@ -18,3 +18,6 @@ libmsc_a_SOURCES = auth.c \
transaction.c \
osmo_msc.c
if BUILD_SMPP
libmsc_a_SOURCES += smpp_smsc.c smpp_openbsc.c
endif

4
openbsc/src/libmsc/gsm_04_11.c
View File

@ -117,6 +117,10 @@ void sms_free(struct gsm_sms *sms)
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);
}

307
openbsc/src/libmsc/smpp_openbsc.c Normal file
View File

@ -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;
}

638
openbsc/src/libmsc/smpp_smsc.c Normal file
View File

@ -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;
}

65
openbsc/src/libmsc/smpp_smsc.h Normal file
View File

@ -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

10
openbsc/src/osmo-nitb/Makefile.am
View File

@ -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 @@ osmo_nitb_LDADD = \
$(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)

5
openbsc/src/osmo-nitb/bsc_hack.c
View File

@ -312,7 +312,10 @@ int main(int argc, char **argv)
/* 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) {