Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 1 | /* OpenBSC SMPP 3.4 interface, SMSC-side implementation */ |
| 2 | |
Harald Welte | f243cb9 | 2013-03-13 15:29:27 +0100 | [diff] [blame] | 3 | /* (C) 2012-2013 by Harald Welte <laforge@gnumonks.org> |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
| 19 | |
| 20 | |
| 21 | #include <stdio.h> |
| 22 | #include <unistd.h> |
| 23 | #include <string.h> |
| 24 | #include <stdint.h> |
| 25 | #include <errno.h> |
| 26 | |
| 27 | #include <smpp34.h> |
| 28 | #include <smpp34_structs.h> |
| 29 | #include <smpp34_params.h> |
| 30 | |
| 31 | #include <osmocom/core/utils.h> |
| 32 | #include <osmocom/core/msgb.h> |
| 33 | #include <osmocom/core/logging.h> |
| 34 | #include <osmocom/core/talloc.h> |
| 35 | #include <osmocom/gsm/protocol/gsm_04_11.h> |
Harald Welte | f243cb9 | 2013-03-13 15:29:27 +0100 | [diff] [blame] | 36 | #include <osmocom/gsm/protocol/smpp34_osmocom.h> |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 37 | |
| 38 | #include <openbsc/gsm_subscriber.h> |
| 39 | #include <openbsc/debug.h> |
| 40 | #include <openbsc/db.h> |
| 41 | #include <openbsc/gsm_04_11.h> |
Harald Welte | 4341309 | 2012-11-08 19:44:08 +0100 | [diff] [blame] | 42 | #include <openbsc/gsm_data.h> |
| 43 | #include <openbsc/signal.h> |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 44 | |
| 45 | #include "smpp_smsc.h" |
| 46 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 47 | /*! \brief find gsm_subscriber for a given SMPP NPI/TON/Address */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 48 | static struct gsm_subscriber *subscr_by_dst(struct gsm_network *net, |
| 49 | uint8_t npi, uint8_t ton, const char *addr) |
| 50 | { |
| 51 | struct gsm_subscriber *subscr = NULL; |
| 52 | |
| 53 | switch (npi) { |
| 54 | case NPI_Land_Mobile_E212: |
| 55 | subscr = subscr_get_by_imsi(net, addr); |
| 56 | break; |
| 57 | case NPI_ISDN_E163_E164: |
| 58 | case NPI_Private: |
| 59 | subscr = subscr_get_by_extension(net, addr); |
| 60 | break; |
| 61 | default: |
| 62 | LOGP(DSMPP, LOGL_NOTICE, "Unsupported NPI: %u\n", npi); |
| 63 | break; |
| 64 | } |
| 65 | |
| 66 | return subscr; |
| 67 | } |
| 68 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 69 | /*! \brief find a TLV with given tag in list of libsmpp34 TLVs */ |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 70 | static struct tlv_t *find_tlv(struct tlv_t *head, uint16_t tag) |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 71 | { |
| 72 | struct tlv_t *t; |
| 73 | |
| 74 | for (t = head; t != NULL; t = t->next) { |
| 75 | if (t->tag == tag) |
| 76 | return t; |
| 77 | } |
| 78 | return NULL; |
| 79 | } |
| 80 | |
Harald Welte | 6f17700 | 2013-05-28 20:37:07 +0200 | [diff] [blame] | 81 | #define MODE_7BIT 7 |
| 82 | #define MODE_8BIT 8 |
| 83 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 84 | /*! \brief convert from submit_sm_t to gsm_sms */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 85 | static int submit_to_sms(struct gsm_sms **psms, struct gsm_network *net, |
| 86 | const struct submit_sm_t *submit) |
| 87 | { |
| 88 | struct gsm_subscriber *dest; |
| 89 | struct gsm_sms *sms; |
| 90 | struct tlv_t *t; |
| 91 | const uint8_t *sms_msg; |
| 92 | unsigned int sms_msg_len; |
Harald Welte | 6f17700 | 2013-05-28 20:37:07 +0200 | [diff] [blame] | 93 | int mode; |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 94 | |
| 95 | dest = subscr_by_dst(net, submit->dest_addr_npi, |
| 96 | submit->dest_addr_ton, |
| 97 | (const char *)submit->destination_addr); |
| 98 | if (!dest) { |
Harald Welte | 1a1791c | 2012-11-24 11:13:19 +0100 | [diff] [blame] | 99 | LOGP(DLSMS, LOGL_NOTICE, "SMPP SUBMIT-SM for unknown subscriber: " |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 100 | "%s (NPI=%u)\n", submit->destination_addr, |
| 101 | submit->dest_addr_npi); |
| 102 | return ESME_RINVDSTADR; |
| 103 | } |
| 104 | |
| 105 | t = find_tlv(submit->tlv, TLVID_message_payload); |
| 106 | if (t) { |
| 107 | if (submit->sm_length) { |
| 108 | /* ERROR: we cannot have botH! */ |
Harald Welte | 1a1791c | 2012-11-24 11:13:19 +0100 | [diff] [blame] | 109 | LOGP(DLSMS, LOGL_ERROR, "SMPP Cannot have payload in " |
Harald Welte | 4dfd580 | 2012-11-09 19:43:50 +0100 | [diff] [blame] | 110 | "TLV _and_ in the header\n"); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 111 | return ESME_ROPTPARNOTALLWD; |
| 112 | } |
| 113 | sms_msg = t->value.octet; |
| 114 | sms_msg_len = t->length; |
| 115 | } else if (submit->short_message && submit->sm_length) { |
| 116 | sms_msg = submit->short_message; |
| 117 | sms_msg_len = submit->sm_length; |
| 118 | } else { |
| 119 | sms_msg = NULL; |
| 120 | sms_msg_len = 0; |
| 121 | } |
| 122 | |
| 123 | sms = sms_alloc(); |
Harald Welte | 4341309 | 2012-11-08 19:44:08 +0100 | [diff] [blame] | 124 | sms->source = SMS_SOURCE_SMPP; |
| 125 | sms->smpp.sequence_nr = submit->sequence_number; |
Harald Welte | fde4916 | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 126 | |
| 127 | /* fill in the destination address */ |
Harald Welte | 2ee1eed | 2012-11-09 19:48:48 +0100 | [diff] [blame] | 128 | sms->receiver = dest; |
Harald Welte | fde4916 | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 129 | sms->dst.ton = submit->dest_addr_ton; |
| 130 | sms->dst.npi = submit->dest_addr_npi; |
| 131 | strncpy(sms->dst.addr, dest->extension, sizeof(sms->dst.addr)-1); |
| 132 | |
| 133 | /* fill in the source address */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 134 | sms->sender = subscr_get_by_id(net, 1); |
Harald Welte | fde4916 | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 135 | sms->src.ton = submit->source_addr_ton; |
| 136 | sms->src.npi = submit->source_addr_npi; |
| 137 | strncpy(sms->src.addr, (char *)submit->source_addr, sizeof(sms->src.addr)-1); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 138 | |
| 139 | if (submit->esm_class & 0x40) |
| 140 | sms->ud_hdr_ind = 1; |
| 141 | |
| 142 | if (submit->esm_class & 0x80) { |
| 143 | sms->reply_path_req = 1; |
| 144 | #warning Implement reply path |
| 145 | } |
| 146 | |
Harald Welte | 870d2be | 2012-11-08 22:15:04 +0100 | [diff] [blame] | 147 | if (submit->data_coding == 0x00 || /* SMSC default */ |
Harald Welte | 6f17700 | 2013-05-28 20:37:07 +0200 | [diff] [blame] | 148 | submit->data_coding == 0x01) { /* GSM default alphabet */ |
| 149 | sms->data_coding_scheme = GSM338_DCS_1111_7BIT; |
| 150 | mode = MODE_7BIT; |
| 151 | } else if ((submit->data_coding & 0xFC) == 0xF0) { /* 03.38 DCS default */ |
| 152 | /* pass DCS 1:1 through from SMPP to GSM */ |
| 153 | sms->data_coding_scheme = submit->data_coding; |
| 154 | mode = MODE_7BIT; |
| 155 | } else if (submit->data_coding == 0x02 || |
| 156 | submit->data_coding == 0x04) { |
| 157 | /* 8-bit binary */ |
| 158 | sms->data_coding_scheme = GSM338_DCS_1111_8BIT_DATA; |
| 159 | mode = MODE_8BIT; |
| 160 | } else if ((submit->data_coding & 0xFC) == 0xF4) { /* 03.38 DCS 8bit */ |
| 161 | /* pass DCS 1:1 through from SMPP to GSM */ |
| 162 | sms->data_coding_scheme = submit->data_coding; |
| 163 | mode = MODE_8BIT; |
| 164 | } else if (submit->data_coding == 0x80) { |
| 165 | /* UCS-2 */ |
| 166 | sms->data_coding_scheme = (2 << 2); |
| 167 | mode = MODE_8BIT; |
| 168 | } else { |
| 169 | sms_free(sms); |
| 170 | LOGP(DLSMS, LOGL_ERROR, "SMPP Unknown Data Coding 0x%02x\n", |
| 171 | submit->data_coding); |
| 172 | return ESME_RUNKNOWNERR; |
| 173 | } |
| 174 | |
Harald Welte | af16c81 | 2013-05-28 20:58:02 +0200 | [diff] [blame] | 175 | if (mode == MODE_7BIT) { |
Harald Welte | 5c1ef5b | 2012-11-24 01:37:39 +0100 | [diff] [blame] | 176 | uint8_t ud_len = 0, padbits = 0; |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 177 | sms->data_coding_scheme = GSM338_DCS_1111_7BIT; |
Harald Welte | 4dfd580 | 2012-11-09 19:43:50 +0100 | [diff] [blame] | 178 | if (sms->ud_hdr_ind) { |
| 179 | ud_len = *sms_msg + 1; |
| 180 | printf("copying %u bytes user data...\n", ud_len); |
| 181 | memcpy(sms->user_data, sms_msg, |
| 182 | OSMO_MIN(ud_len, sizeof(sms->user_data))); |
| 183 | sms_msg += ud_len; |
| 184 | sms_msg_len -= ud_len; |
Harald Welte | 5c1ef5b | 2012-11-24 01:37:39 +0100 | [diff] [blame] | 185 | padbits = 7 - (ud_len % 7); |
Harald Welte | 4dfd580 | 2012-11-09 19:43:50 +0100 | [diff] [blame] | 186 | } |
Harald Welte | 5c1ef5b | 2012-11-24 01:37:39 +0100 | [diff] [blame] | 187 | gsm_septets2octets(sms->user_data+ud_len, sms_msg, |
| 188 | sms_msg_len, padbits); |
| 189 | sms->user_data_len = (ud_len*8 + padbits)/7 + sms_msg_len;/* SEPTETS */ |
| 190 | /* FIXME: sms->text */ |
Harald Welte | 6f17700 | 2013-05-28 20:37:07 +0200 | [diff] [blame] | 191 | } else { |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 192 | memcpy(sms->user_data, sms_msg, sms_msg_len); |
| 193 | sms->user_data_len = sms_msg_len; |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 194 | } |
| 195 | |
| 196 | *psms = sms; |
| 197 | return ESME_ROK; |
| 198 | } |
| 199 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 200 | /*! \brief handle incoming libsmpp34 ssubmit_sm_t from remote ESME */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 201 | int handle_smpp_submit(struct osmo_esme *esme, struct submit_sm_t *submit, |
| 202 | struct submit_sm_resp_t *submit_r) |
| 203 | { |
| 204 | struct gsm_sms *sms; |
Holger Hans Peter Freyther | a528daf | 2013-01-20 17:43:50 +0100 | [diff] [blame] | 205 | struct gsm_network *net = esme->smsc->priv; |
| 206 | struct sms_signal_data sig; |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 207 | int rc = -1; |
| 208 | |
Holger Hans Peter Freyther | a528daf | 2013-01-20 17:43:50 +0100 | [diff] [blame] | 209 | rc = submit_to_sms(&sms, net, submit); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 210 | if (rc != ESME_ROK) { |
| 211 | submit_r->command_status = rc; |
| 212 | return 0; |
| 213 | } |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 214 | smpp_esme_get(esme); |
Harald Welte | 4341309 | 2012-11-08 19:44:08 +0100 | [diff] [blame] | 215 | sms->smpp.esme = esme; |
Harald Welte | 870d2be | 2012-11-08 22:15:04 +0100 | [diff] [blame] | 216 | sms->protocol_id = submit->protocol_id; |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 217 | |
| 218 | switch (submit->esm_class & 3) { |
| 219 | case 0: /* default */ |
| 220 | case 1: /* datagram */ |
| 221 | case 3: /* store-and-forward */ |
| 222 | rc = db_sms_store(sms); |
Holger Hans Peter Freyther | 5831dd9 | 2013-01-20 17:21:31 +0100 | [diff] [blame] | 223 | sms_free(sms); |
| 224 | sms = NULL; |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 225 | if (rc < 0) { |
Harald Welte | 1a1791c | 2012-11-24 11:13:19 +0100 | [diff] [blame] | 226 | LOGP(DLSMS, LOGL_ERROR, "SMPP SUBMIT-SM: Unable to " |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 227 | "store SMS in database\n"); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 228 | submit_r->command_status = ESME_RSYSERR; |
| 229 | return 0; |
| 230 | } |
| 231 | strcpy((char *)submit_r->message_id, "msg_id_not_implemented"); |
Harald Welte | 1a1791c | 2012-11-24 11:13:19 +0100 | [diff] [blame] | 232 | LOGP(DLSMS, LOGL_INFO, "SMPP SUBMIT-SM: Stored in DB\n"); |
Holger Hans Peter Freyther | a528daf | 2013-01-20 17:43:50 +0100 | [diff] [blame] | 233 | |
| 234 | memset(&sig, 0, sizeof(sig)); |
| 235 | osmo_signal_dispatch(SS_SMS, S_SMS_SUBMITTED, &sig); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 236 | rc = 0; |
| 237 | break; |
| 238 | case 2: /* forward (i.e. transaction) mode */ |
Harald Welte | 1a1791c | 2012-11-24 11:13:19 +0100 | [diff] [blame] | 239 | LOGP(DLSMS, LOGL_DEBUG, "SMPP SUBMIT-SM: Forwarding in " |
Harald Welte | 4dfd580 | 2012-11-09 19:43:50 +0100 | [diff] [blame] | 240 | "real time (Transaction/Forward mode)\n"); |
Harald Welte | 4341309 | 2012-11-08 19:44:08 +0100 | [diff] [blame] | 241 | sms->smpp.transaction_mode = 1; |
| 242 | gsm411_send_sms_subscr(sms->receiver, sms); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 243 | rc = 1; /* don't send any response yet */ |
| 244 | break; |
| 245 | } |
| 246 | return rc; |
| 247 | } |
| 248 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 249 | /*! \brief signal handler for status of attempted SMS deliveries */ |
Harald Welte | 4341309 | 2012-11-08 19:44:08 +0100 | [diff] [blame] | 250 | static int smpp_sms_cb(unsigned int subsys, unsigned int signal, |
| 251 | void *handler_data, void *signal_data) |
| 252 | { |
Harald Welte | 4341309 | 2012-11-08 19:44:08 +0100 | [diff] [blame] | 253 | struct sms_signal_data *sig_sms = signal_data; |
| 254 | struct gsm_sms *sms = sig_sms->sms; |
| 255 | int rc = 0; |
| 256 | |
| 257 | if (!sms) |
| 258 | return 0; |
| 259 | |
| 260 | if (sms->source != SMS_SOURCE_SMPP) |
| 261 | return 0; |
| 262 | |
| 263 | switch (signal) { |
| 264 | case S_SMS_UNKNOWN_ERROR: |
| 265 | if (sms->smpp.transaction_mode) { |
| 266 | /* Send back the SUBMIT-SM response with apropriate error */ |
Harald Welte | 1a1791c | 2012-11-24 11:13:19 +0100 | [diff] [blame] | 267 | LOGP(DLSMS, LOGL_INFO, "SMPP SUBMIT-SM: Error\n"); |
Harald Welte | 4341309 | 2012-11-08 19:44:08 +0100 | [diff] [blame] | 268 | rc = smpp_tx_submit_r(sms->smpp.esme, |
| 269 | sms->smpp.sequence_nr, |
| 270 | ESME_RDELIVERYFAILURE, |
| 271 | sms->smpp.msg_id); |
| 272 | } |
| 273 | break; |
| 274 | case S_SMS_DELIVERED: |
| 275 | /* SMS layer tells us the delivery has been completed */ |
| 276 | if (sms->smpp.transaction_mode) { |
| 277 | /* Send back the SUBMIT-SM response */ |
Harald Welte | 1a1791c | 2012-11-24 11:13:19 +0100 | [diff] [blame] | 278 | LOGP(DLSMS, LOGL_INFO, "SMPP SUBMIT-SM: Success\n"); |
Harald Welte | 4341309 | 2012-11-08 19:44:08 +0100 | [diff] [blame] | 279 | rc = smpp_tx_submit_r(sms->smpp.esme, |
| 280 | sms->smpp.sequence_nr, |
| 281 | ESME_ROK, sms->smpp.msg_id); |
| 282 | } |
| 283 | break; |
| 284 | } |
| 285 | |
| 286 | return rc; |
| 287 | } |
| 288 | |
Harald Welte | 475cb61 | 2012-11-09 12:51:44 +0100 | [diff] [blame] | 289 | /*! \brief signal handler for subscriber related signals */ |
| 290 | static int smpp_subscr_cb(unsigned int subsys, unsigned int signal, |
| 291 | void *handler_data, void *signal_data) |
| 292 | { |
| 293 | struct gsm_subscriber *subscr = signal_data; |
| 294 | struct smsc *smsc = handler_data; |
| 295 | struct osmo_esme *esme; |
| 296 | uint8_t smpp_avail_status; |
| 297 | |
| 298 | /* determine the smpp_avail_status depending on attach/detach */ |
| 299 | switch (signal) { |
| 300 | case S_SUBSCR_ATTACHED: |
| 301 | smpp_avail_status = 0; |
| 302 | break; |
| 303 | case S_SUBSCR_DETACHED: |
| 304 | smpp_avail_status = 2; |
| 305 | break; |
| 306 | default: |
| 307 | return 0; |
| 308 | } |
| 309 | |
| 310 | llist_for_each_entry(esme, &smsc->esme_list, list) { |
| 311 | /* we currently send an alert notification to each ESME that is |
| 312 | * connected, and do not require a (non-existant) delivery |
| 313 | * pending flag to be set before, FIXME: make this VTY |
| 314 | * configurable */ |
| 315 | smpp_tx_alert(esme, TON_Subscriber_Number, |
| 316 | NPI_Land_Mobile_E212, subscr->imsi, |
| 317 | smpp_avail_status); |
| 318 | } |
| 319 | |
| 320 | return 0; |
| 321 | } |
| 322 | |
Harald Welte | 5c1ef5b | 2012-11-24 01:37:39 +0100 | [diff] [blame] | 323 | /* GSM 03.38 6.2.1 Character expanding (no decode!) */ |
| 324 | static int gsm_7bit_expand(char *text, const uint8_t *user_data, uint8_t septet_l, uint8_t ud_hdr_ind) |
| 325 | { |
| 326 | int i = 0; |
| 327 | int shift = 0; |
| 328 | uint8_t c; |
| 329 | |
| 330 | /* skip the user data header */ |
| 331 | if (ud_hdr_ind) { |
| 332 | /* get user data header length + 1 (for the 'user data header length'-field) */ |
| 333 | shift = ((user_data[0] + 1) * 8) / 7; |
| 334 | if ((((user_data[0] + 1) * 8) % 7) != 0) |
| 335 | shift++; |
| 336 | septet_l = septet_l - shift; |
| 337 | } |
| 338 | |
| 339 | for (i = 0; i < septet_l; i++) { |
| 340 | c = |
| 341 | ((user_data[((i + shift) * 7 + 7) >> 3] << |
| 342 | (7 - (((i + shift) * 7 + 7) & 7))) | |
| 343 | (user_data[((i + shift) * 7) >> 3] >> |
| 344 | (((i + shift) * 7) & 7))) & 0x7f; |
| 345 | |
| 346 | *(text++) = c; |
| 347 | } |
| 348 | |
| 349 | *text = '\0'; |
| 350 | |
| 351 | return i; |
| 352 | } |
| 353 | |
| 354 | |
Harald Welte | f243cb9 | 2013-03-13 15:29:27 +0100 | [diff] [blame] | 355 | /* FIXME: libsmpp34 helpers, they should be part of libsmpp34! */ |
| 356 | void append_tlv(tlv_t **req_tlv, uint16_t tag, |
| 357 | const uint8_t *data, uint16_t len) |
| 358 | { |
| 359 | tlv_t tlv; |
| 360 | |
| 361 | memset(&tlv, 0, sizeof(tlv)); |
| 362 | tlv.tag = tag; |
| 363 | tlv.length = len; |
| 364 | memcpy(tlv.value.octet, data, tlv.length); |
| 365 | build_tlv(req_tlv, &tlv); |
| 366 | } |
| 367 | void append_tlv_u8(tlv_t **req_tlv, uint16_t tag, uint8_t val) |
| 368 | { |
| 369 | tlv_t tlv; |
| 370 | |
| 371 | memset(&tlv, 0, sizeof(tlv)); |
| 372 | tlv.tag = tag; |
| 373 | tlv.length = 1; |
| 374 | tlv.value.val08 = val; |
| 375 | build_tlv(req_tlv, &tlv); |
| 376 | } |
| 377 | void append_tlv_u16(tlv_t **req_tlv, uint16_t tag, uint16_t val) |
| 378 | { |
| 379 | tlv_t tlv; |
| 380 | |
| 381 | memset(&tlv, 0, sizeof(tlv)); |
| 382 | tlv.tag = tag; |
| 383 | tlv.length = 2; |
| 384 | tlv.value.val16 = htons(val); |
| 385 | build_tlv(req_tlv, &tlv); |
| 386 | } |
| 387 | |
| 388 | /* Append the Osmocom vendor-specific additional TLVs to a SMPP msg */ |
| 389 | static void append_osmo_tlvs(tlv_t **req_tlv, const struct gsm_lchan *lchan) |
| 390 | { |
| 391 | int idx = calc_initial_idx(ARRAY_SIZE(lchan->meas_rep), |
| 392 | lchan->meas_rep_idx, 1); |
| 393 | const struct gsm_meas_rep *mr = &lchan->meas_rep[idx]; |
| 394 | const struct gsm_meas_rep_unidir *ul_meas = &mr->ul; |
| 395 | const struct gsm_meas_rep_unidir *dl_meas = &mr->dl; |
| 396 | |
| 397 | /* Osmocom vendor-specific SMPP34 extensions */ |
| 398 | append_tlv_u16(req_tlv, TLVID_osmo_arfcn, lchan->ts->trx->arfcn); |
| 399 | if (mr->flags & MEAS_REP_F_MS_L1) { |
| 400 | uint8_t ms_dbm; |
| 401 | append_tlv_u8(req_tlv, TLVID_osmo_ta, mr->ms_l1.ta); |
| 402 | ms_dbm = ms_pwr_dbm(lchan->ts->trx->bts->band, mr->ms_l1.pwr); |
| 403 | append_tlv_u8(req_tlv, TLVID_osmo_ms_l1_txpwr, ms_dbm); |
| 404 | } else if (mr->flags & MEAS_REP_F_MS_TO) |
| 405 | append_tlv_u8(req_tlv, TLVID_osmo_ta, mr->ms_timing_offset); |
| 406 | |
| 407 | append_tlv_u16(req_tlv, TLVID_osmo_rxlev_ul, |
| 408 | rxlev2dbm(ul_meas->full.rx_lev)); |
| 409 | append_tlv_u8(req_tlv, TLVID_osmo_rxqual_ul, ul_meas->full.rx_qual); |
| 410 | |
| 411 | if (mr->flags & MEAS_REP_F_DL_VALID) { |
| 412 | append_tlv_u16(req_tlv, TLVID_osmo_rxlev_dl, |
| 413 | rxlev2dbm(dl_meas->full.rx_lev)); |
| 414 | append_tlv_u8(req_tlv, TLVID_osmo_rxqual_dl, |
| 415 | dl_meas->full.rx_qual); |
| 416 | } |
| 417 | |
| 418 | if (lchan->conn && lchan->conn->subscr) { |
| 419 | struct gsm_subscriber *subscr = lchan->conn->subscr; |
| 420 | size_t imei_len = strlen(subscr->equipment.imei); |
| 421 | if (imei_len) |
| 422 | append_tlv(req_tlv, TLVID_osmo_imei, |
| 423 | (uint8_t *)subscr->equipment.imei, imei_len+1); |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | static int deliver_to_esme(struct osmo_esme *esme, struct gsm_sms *sms, |
| 428 | struct gsm_subscriber_connection *conn) |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 429 | { |
| 430 | struct deliver_sm_t deliver; |
| 431 | uint8_t dcs; |
Harald Welte | af16c81 | 2013-05-28 20:58:02 +0200 | [diff] [blame] | 432 | int mode; |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 433 | |
| 434 | memset(&deliver, 0, sizeof(deliver)); |
| 435 | deliver.command_length = 0; |
| 436 | deliver.command_id = DELIVER_SM; |
| 437 | deliver.command_status = ESME_ROK; |
| 438 | |
| 439 | strcpy((char *)deliver.service_type, "CMT"); |
| 440 | if (esme->acl && esme->acl->deliver_src_imsi) { |
| 441 | deliver.source_addr_ton = TON_Subscriber_Number; |
| 442 | deliver.source_addr_npi = NPI_Land_Mobile_E212; |
| 443 | snprintf((char *)deliver.source_addr, |
| 444 | sizeof(deliver.source_addr), "%s", |
| 445 | sms->sender->imsi); |
| 446 | } else { |
| 447 | deliver.source_addr_ton = TON_Network_Specific; |
| 448 | deliver.source_addr_npi = NPI_ISDN_E163_E164; |
| 449 | snprintf((char *)deliver.source_addr, |
| 450 | sizeof(deliver.source_addr), "%s", |
| 451 | sms->sender->extension); |
| 452 | } |
| 453 | |
Harald Welte | fde4916 | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 454 | deliver.dest_addr_ton = sms->dst.ton; |
| 455 | deliver.dest_addr_npi = sms->dst.npi; |
| 456 | memcpy(deliver.destination_addr, sms->dst.addr, |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 457 | sizeof(deliver.destination_addr)); |
| 458 | |
| 459 | deliver.esm_class = 1; /* datagram mode */ |
| 460 | if (sms->ud_hdr_ind) |
| 461 | deliver.esm_class |= 0x40; |
| 462 | if (sms->reply_path_req) |
| 463 | deliver.esm_class |= 0x80; |
| 464 | |
| 465 | deliver.protocol_id = sms->protocol_id; |
| 466 | deliver.priority_flag = 0; |
| 467 | deliver.registered_delivery = 0; |
| 468 | |
Harald Welte | af16c81 | 2013-05-28 20:58:02 +0200 | [diff] [blame] | 469 | /* Figure out SMPP DCS from TP-DCS */ |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 470 | dcs = sms->data_coding_scheme; |
Harald Welte | af16c81 | 2013-05-28 20:58:02 +0200 | [diff] [blame] | 471 | if ((dcs & 0xFC) == GSM338_DCS_1111_7BIT) { |
| 472 | deliver.data_coding = 0x01; |
| 473 | mode = MODE_7BIT; |
| 474 | } else if ((dcs & 0xE0) == 0 && (dcs & 0xC) == 0) { |
| 475 | deliver.data_coding = 0x01; |
| 476 | mode = MODE_7BIT; |
| 477 | } else if ((dcs & 0xFC) == GSM338_DCS_1111_8BIT_DATA) { |
| 478 | deliver.data_coding = 0x02; |
| 479 | mode = MODE_8BIT; |
| 480 | } else if ((dcs & 0xE0) == 0 && (dcs & 0xC) == 4) { |
| 481 | deliver.data_coding = 0x02; |
| 482 | mode = MODE_8BIT; |
| 483 | } else if ((dcs & 0xE0) == 0 && (dcs & 0xC) == 8) { |
| 484 | deliver.data_coding = 0x08; /* UCS-2 */ |
| 485 | mode = MODE_8BIT; |
| 486 | } else { |
| 487 | LOGP(DLSMS, LOGL_ERROR, "SMPP MO Unknown Data Coding 0x%02x\n", |
| 488 | dcs); |
| 489 | return -1; |
| 490 | } |
| 491 | |
| 492 | /* Transparently pass on DCS via SMPP if requested */ |
| 493 | if (esme->acl->dcs_transparent) |
| 494 | deliver.data_coding = dcs; |
| 495 | |
| 496 | if (mode == MODE_7BIT) { |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 497 | uint8_t *dst = deliver.short_message; |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 498 | |
| 499 | /* SMPP has this strange notion of putting 7bit SMS in |
| 500 | * an octet-aligned mode */ |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 501 | if (sms->ud_hdr_ind) { |
Harald Welte | 5c1ef5b | 2012-11-24 01:37:39 +0100 | [diff] [blame] | 502 | /* length (bytes) of UDH inside UD */ |
| 503 | uint8_t udh_len = sms->user_data[0] + 1; |
| 504 | |
| 505 | /* copy over the UDH */ |
| 506 | memcpy(dst, sms->user_data, udh_len); |
| 507 | dst += udh_len; |
| 508 | deliver.sm_length = udh_len; |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 509 | } |
Harald Welte | 5c1ef5b | 2012-11-24 01:37:39 +0100 | [diff] [blame] | 510 | /* add decoded text */ |
| 511 | deliver.sm_length += gsm_7bit_expand((char *)dst, sms->user_data, sms->user_data_len, sms->ud_hdr_ind); |
Harald Welte | af16c81 | 2013-05-28 20:58:02 +0200 | [diff] [blame] | 512 | } else { |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 513 | deliver.sm_length = sms->user_data_len; |
| 514 | memcpy(deliver.short_message, sms->user_data, deliver.sm_length); |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 515 | deliver.sm_length = sms->user_data_len; |
| 516 | memcpy(deliver.short_message, sms->user_data, deliver.sm_length); |
| 517 | } |
| 518 | |
Harald Welte | f243cb9 | 2013-03-13 15:29:27 +0100 | [diff] [blame] | 519 | if (esme->acl->osmocom_ext && conn && conn->lchan) |
| 520 | append_osmo_tlvs(&deliver.tlv, conn->lchan); |
| 521 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 522 | return smpp_tx_deliver(esme, &deliver); |
| 523 | } |
| 524 | |
Harald Welte | b7dd661 | 2012-11-20 22:22:04 +0100 | [diff] [blame] | 525 | static struct smsc *g_smsc; |
| 526 | |
Harald Welte | f243cb9 | 2013-03-13 15:29:27 +0100 | [diff] [blame] | 527 | int smpp_try_deliver(struct gsm_sms *sms, struct gsm_subscriber_connection *conn) |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 528 | { |
| 529 | struct osmo_esme *esme; |
| 530 | struct osmo_smpp_addr dst; |
| 531 | |
| 532 | memset(&dst, 0, sizeof(dst)); |
Harald Welte | fde4916 | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 533 | dst.ton = sms->dst.ton; |
| 534 | dst.npi = sms->dst.npi; |
| 535 | memcpy(dst.addr, sms->dst.addr, sizeof(dst.addr)); |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 536 | |
| 537 | esme = smpp_route(g_smsc, &dst); |
| 538 | if (!esme) |
| 539 | return 1; /* unknown subscriber */ |
| 540 | |
Harald Welte | f243cb9 | 2013-03-13 15:29:27 +0100 | [diff] [blame] | 541 | return deliver_to_esme(esme, sms, conn); |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 542 | } |
| 543 | |
Harald Welte | b7dd661 | 2012-11-20 22:22:04 +0100 | [diff] [blame] | 544 | struct smsc *smsc_from_vty(struct vty *v) |
| 545 | { |
| 546 | /* FIXME: this is ugly */ |
| 547 | return g_smsc; |
| 548 | } |
| 549 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 550 | /*! \brief Initialize the OpenBSC SMPP interface */ |
Harald Welte | 51f6548 | 2013-03-13 15:05:26 +0100 | [diff] [blame] | 551 | int smpp_openbsc_init(void *ctx, uint16_t port) |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 552 | { |
Harald Welte | 51f6548 | 2013-03-13 15:05:26 +0100 | [diff] [blame] | 553 | struct smsc *smsc = talloc_zero(ctx, struct smsc); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 554 | int rc; |
| 555 | |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 556 | rc = smpp_smsc_init(smsc, port); |
| 557 | if (rc < 0) |
| 558 | talloc_free(smsc); |
| 559 | |
Harald Welte | 51f6548 | 2013-03-13 15:05:26 +0100 | [diff] [blame] | 560 | osmo_signal_register_handler(SS_SMS, smpp_sms_cb, smsc); |
Harald Welte | 475cb61 | 2012-11-09 12:51:44 +0100 | [diff] [blame] | 561 | osmo_signal_register_handler(SS_SUBSCR, smpp_subscr_cb, smsc); |
Harald Welte | 4341309 | 2012-11-08 19:44:08 +0100 | [diff] [blame] | 562 | |
Harald Welte | b7dd661 | 2012-11-20 22:22:04 +0100 | [diff] [blame] | 563 | g_smsc = smsc; |
| 564 | |
| 565 | smpp_vty_init(); |
| 566 | |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 567 | return rc; |
| 568 | } |
Harald Welte | 51f6548 | 2013-03-13 15:05:26 +0100 | [diff] [blame] | 569 | |
| 570 | void smpp_openbsc_set_net(struct gsm_network *net) |
| 571 | { |
| 572 | g_smsc->priv = net; |
| 573 | } |