Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 1 | /* Point-to-Point (PP) Short Message Service (SMS) |
| 2 | * Support on Mobile Radio Interface |
| 3 | * 3GPP TS 04.11 version 7.1.0 Release 1998 / ETSI TS 100 942 V7.1.0 */ |
| 4 | |
| 5 | /* (C) 2008 by Daniel Willmann <daniel@totalueberwachung.de> |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 6 | * (C) 2009 by Harald Welte <laforge@gnumonks.org> |
Holger Hans Peter Freyther | 7517212 | 2012-11-10 18:11:22 +0100 | [diff] [blame] | 7 | * (C) 2010-2012 by Holger Hans Peter Freyther <zecke@selfish.org> |
Holger Hans Peter Freyther | 85531cc | 2010-10-06 20:37:09 +0800 | [diff] [blame] | 8 | * (C) 2010 by On-Waves |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 9 | * (C) 2011 by Andreas Eversberg <jolly@eversberg.eu> |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 10 | * |
| 11 | * All Rights Reserved |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 14 | * it under the terms of the GNU Affero General Public License as published by |
| 15 | * the Free Software Foundation; either version 3 of the License, or |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 16 | * (at your option) any later version. |
| 17 | * |
| 18 | * This program is distributed in the hope that it will be useful, |
| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 21 | * GNU Affero General Public License for more details. |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 22 | * |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 23 | * You should have received a copy of the GNU Affero General Public License |
| 24 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 25 | * |
| 26 | */ |
| 27 | |
| 28 | |
| 29 | #include <stdio.h> |
| 30 | #include <stdlib.h> |
| 31 | #include <string.h> |
| 32 | #include <errno.h> |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 33 | #include <time.h> |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 34 | #include <netinet/in.h> |
| 35 | |
Harald Welte | 9c3dc90 | 2012-04-08 16:59:24 +0200 | [diff] [blame] | 36 | #include "bscconfig.h" |
| 37 | |
Pablo Neira Ayuso | 136f453 | 2011-03-22 16:47:59 +0100 | [diff] [blame] | 38 | #include <osmocom/core/msgb.h> |
Holger Hans Peter Freyther | 7517212 | 2012-11-10 18:11:22 +0100 | [diff] [blame] | 39 | #include <osmocom/core/talloc.h> |
Neels Hofmeyr | 93bafb6 | 2017-01-13 03:12:08 +0100 | [diff] [blame] | 40 | #include <osmocom/core/utils.h> |
Holger Hans Peter Freyther | 7517212 | 2012-11-10 18:11:22 +0100 | [diff] [blame] | 41 | |
Holger Hans Peter Freyther | 7517212 | 2012-11-10 18:11:22 +0100 | [diff] [blame] | 42 | #include <osmocom/gsm/gsm_utils.h> |
Holger Hans Peter Freyther | 366c331 | 2012-11-10 18:24:54 +0100 | [diff] [blame] | 43 | #include <osmocom/gsm/gsm0411_utils.h> |
Alexander Couzens | aa386d2 | 2016-08-21 20:16:33 +0200 | [diff] [blame] | 44 | #include <osmocom/gsm/protocol/gsm_04_11.h> |
Holger Hans Peter Freyther | 7517212 | 2012-11-10 18:11:22 +0100 | [diff] [blame] | 45 | |
Neels Hofmeyr | 9084396 | 2017-09-04 15:04:35 +0200 | [diff] [blame] | 46 | #include <osmocom/msc/debug.h> |
| 47 | #include <osmocom/msc/gsm_data.h> |
| 48 | #include <osmocom/msc/db.h> |
| 49 | #include <osmocom/msc/gsm_subscriber.h> |
| 50 | #include <osmocom/msc/gsm_04_08.h> |
Neels Hofmeyr | 9084396 | 2017-09-04 15:04:35 +0200 | [diff] [blame] | 51 | #include <osmocom/msc/signal.h> |
| 52 | #include <osmocom/msc/db.h> |
| 53 | #include <osmocom/msc/transaction.h> |
Neels Hofmeyr | 9084396 | 2017-09-04 15:04:35 +0200 | [diff] [blame] | 54 | #include <osmocom/msc/msc_ifaces.h> |
Neels Hofmeyr | 9084396 | 2017-09-04 15:04:35 +0200 | [diff] [blame] | 55 | #include <osmocom/msc/vlr.h> |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 56 | |
Harald Welte | e07b6a7 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 57 | #ifdef BUILD_SMPP |
| 58 | #include "smpp_smsc.h" |
Harald Welte | e07b6a7 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 59 | #endif |
| 60 | |
Harald Welte (local) | d19e58b | 2009-08-15 02:30:58 +0200 | [diff] [blame] | 61 | void *tall_gsms_ctx; |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 62 | static uint32_t new_callref = 0x40000001; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 63 | |
Holger Hans Peter Freyther | 0fbb3ec | 2010-06-16 14:19:31 +0800 | [diff] [blame] | 64 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 65 | struct gsm_sms *sms_alloc(void) |
| 66 | { |
| 67 | return talloc_zero(tall_gsms_ctx, struct gsm_sms); |
| 68 | } |
| 69 | |
| 70 | void sms_free(struct gsm_sms *sms) |
| 71 | { |
| 72 | /* drop references to subscriber structure */ |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 73 | if (sms->receiver) |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 74 | vlr_subscr_put(sms->receiver); |
Harald Welte | 6c7680d | 2012-11-16 22:15:22 +0100 | [diff] [blame] | 75 | #ifdef BUILD_SMPP |
Harald Welte | e94db49 | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 76 | if (sms->smpp.esme) |
| 77 | smpp_esme_put(sms->smpp.esme); |
Harald Welte | 6c7680d | 2012-11-16 22:15:22 +0100 | [diff] [blame] | 78 | #endif |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 79 | |
| 80 | talloc_free(sms); |
| 81 | } |
| 82 | |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 83 | struct gsm_sms *sms_from_text(struct vlr_subscr *receiver, |
Harald Welte | 39b5548 | 2018-04-09 19:19:33 +0200 | [diff] [blame] | 84 | const char *sender_msisdn, |
Sylvain Munaut | 01c13a3 | 2012-12-28 00:49:01 +0100 | [diff] [blame] | 85 | int dcs, const char *text) |
Holger Hans Peter Freyther | c464491 | 2011-01-10 15:21:34 +0100 | [diff] [blame] | 86 | { |
| 87 | struct gsm_sms *sms = sms_alloc(); |
| 88 | |
| 89 | if (!sms) |
| 90 | return NULL; |
| 91 | |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 92 | sms->receiver = vlr_subscr_get(receiver); |
Max | 98f7467 | 2018-02-05 12:57:06 +0100 | [diff] [blame] | 93 | OSMO_STRLCPY_ARRAY(sms->text, text); |
Holger Hans Peter Freyther | c464491 | 2011-01-10 15:21:34 +0100 | [diff] [blame] | 94 | |
Harald Welte | 39b5548 | 2018-04-09 19:19:33 +0200 | [diff] [blame] | 95 | OSMO_STRLCPY_ARRAY(sms->src.addr, sender_msisdn); |
Holger Hans Peter Freyther | c464491 | 2011-01-10 15:21:34 +0100 | [diff] [blame] | 96 | sms->reply_path_req = 0; |
| 97 | sms->status_rep_req = 0; |
| 98 | sms->ud_hdr_ind = 0; |
| 99 | sms->protocol_id = 0; /* implicit */ |
Holger Hans Peter Freyther | cdfcbee | 2011-01-10 15:34:09 +0100 | [diff] [blame] | 100 | sms->data_coding_scheme = dcs; |
Max | 98f7467 | 2018-02-05 12:57:06 +0100 | [diff] [blame] | 101 | OSMO_STRLCPY_ARRAY(sms->dst.addr, receiver->msisdn); |
Holger Hans Peter Freyther | c464491 | 2011-01-10 15:21:34 +0100 | [diff] [blame] | 102 | /* Generate user_data */ |
Holger Hans Peter Freyther | 91acfa0 | 2013-12-26 22:33:02 +0100 | [diff] [blame] | 103 | sms->user_data_len = gsm_7bit_encode_n(sms->user_data, sizeof(sms->user_data), |
| 104 | sms->text, NULL); |
Holger Hans Peter Freyther | c464491 | 2011-01-10 15:21:34 +0100 | [diff] [blame] | 105 | |
| 106 | return sms; |
| 107 | } |
| 108 | |
| 109 | |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 110 | static void send_signal(int sig_no, |
| 111 | struct gsm_trans *trans, |
| 112 | struct gsm_sms *sms, |
| 113 | int paging_result) |
| 114 | { |
| 115 | struct sms_signal_data sig; |
| 116 | sig.trans = trans; |
| 117 | sig.sms = sms; |
| 118 | sig.paging_result = paging_result; |
Pablo Neira Ayuso | bbc5b99 | 2011-05-06 12:12:31 +0200 | [diff] [blame] | 119 | osmo_signal_dispatch(SS_SMS, sig_no, &sig); |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 120 | } |
| 121 | |
Neels Hofmeyr | c036b79 | 2018-11-29 22:37:51 +0100 | [diff] [blame] | 122 | static int gsm411_sendmsg(struct ran_conn *conn, struct msgb *msg) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 123 | { |
Harald Welte | a41b630 | 2018-02-09 00:27:56 +0100 | [diff] [blame] | 124 | DEBUGP(DLSMS, "GSM4.11 TX %s\n", msgb_hexdump(msg)); |
Holger Hans Peter Freyther | ec32b58 | 2010-03-23 07:40:46 +0100 | [diff] [blame] | 125 | msg->l3h = msg->data; |
Neels Hofmeyr | 84da6b1 | 2016-05-20 21:59:55 +0200 | [diff] [blame] | 126 | return msc_tx_dtap(conn, msg); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 127 | } |
| 128 | |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 129 | /* Paging callback for MT SMS (Paging is triggered by SMC) */ |
| 130 | static int paging_cb_mmsms_est_req(unsigned int hooknum, unsigned int event, |
| 131 | struct msgb *msg, void *_conn, void *_trans) |
| 132 | { |
Neels Hofmeyr | c036b79 | 2018-11-29 22:37:51 +0100 | [diff] [blame] | 133 | struct ran_conn *conn = _conn; |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 134 | struct gsm_trans *trans = _trans; |
| 135 | struct gsm_sms *sms = trans->sms.sms; |
| 136 | int rc = 0; |
| 137 | |
Max | 4813152 | 2019-01-16 12:47:39 +0100 | [diff] [blame] | 138 | DEBUGP(DLSMS, "paging_cb_mmsms_est_req(hooknum=%u, event=%u)\n", hooknum, event); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 139 | |
| 140 | if (hooknum != GSM_HOOK_RR_PAGING) |
| 141 | return -EINVAL; |
| 142 | |
| 143 | /* Paging procedure has finished */ |
| 144 | trans->paging_request = NULL; |
| 145 | |
| 146 | switch (event) { |
| 147 | case GSM_PAGING_SUCCEEDED: |
| 148 | /* Associate transaction with established connection */ |
Neels Hofmeyr | 3c20a5e | 2018-11-30 01:08:36 +0100 | [diff] [blame] | 149 | trans->conn = ran_conn_get(conn, RAN_CONN_USE_TRANS_SMS); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 150 | /* Confirm successful connection establishment */ |
| 151 | gsm411_smc_recv(&trans->sms.smc_inst, |
| 152 | GSM411_MMSMS_EST_CNF, NULL, 0); |
| 153 | break; |
| 154 | case GSM_PAGING_EXPIRED: |
| 155 | case GSM_PAGING_BUSY: |
| 156 | /* Inform SMC about channel establishment failure */ |
| 157 | gsm411_smc_recv(&trans->sms.smc_inst, |
| 158 | GSM411_MMSMS_REL_IND, NULL, 0); |
| 159 | |
Vadim Yanitskiy | 82cc8a5 | 2018-11-15 01:05:53 +0700 | [diff] [blame] | 160 | /* gsm411_send_rp_data() doesn't set trans->sms.sms */ |
| 161 | if (sms != NULL) { |
| 162 | /* Notify the SMSqueue and free stored SMS */ |
| 163 | send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, event); |
| 164 | trans->sms.sms = NULL; |
| 165 | sms_free(sms); |
| 166 | } |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 167 | |
| 168 | /* Destroy this transaction */ |
| 169 | trans_free(trans); |
| 170 | rc = -ETIMEDOUT; |
| 171 | break; |
| 172 | default: |
| 173 | LOGP(DLSMS, LOGL_ERROR, "Unhandled paging event: %d\n", event); |
| 174 | } |
| 175 | |
| 176 | return rc; |
| 177 | } |
| 178 | |
| 179 | static int gsm411_mmsms_est_req(struct gsm_trans *trans) |
| 180 | { |
| 181 | /* Subscriber's data shall be associated */ |
| 182 | OSMO_ASSERT(trans->vsub != NULL); |
| 183 | |
| 184 | /* Check if connection is already established */ |
| 185 | if (trans->conn != NULL) { |
| 186 | LOGP(DLSMS, LOGL_DEBUG, "Using an existing connection " |
| 187 | "for %s\n", vlr_subscr_name(trans->vsub)); |
| 188 | return gsm411_smc_recv(&trans->sms.smc_inst, |
| 189 | GSM411_MMSMS_EST_CNF, NULL, 0); |
| 190 | } |
| 191 | |
| 192 | /* Initiate Paging procedure */ |
| 193 | LOGP(DLSMS, LOGL_DEBUG, "Initiating Paging procedure " |
| 194 | "for %s due to MMSMS_EST_REQ\n", vlr_subscr_name(trans->vsub)); |
| 195 | trans->paging_request = subscr_request_conn(trans->vsub, |
Harald Welte | 0df904d | 2018-12-03 11:00:04 +0100 | [diff] [blame] | 196 | paging_cb_mmsms_est_req, |
| 197 | trans, "MT SMS", |
| 198 | SGSAP_SERV_IND_SMS); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 199 | if (!trans->paging_request) { |
| 200 | LOGP(DLSMS, LOGL_ERROR, "Failed to initiate Paging " |
| 201 | "procedure for %s\n", vlr_subscr_name(trans->vsub)); |
| 202 | /* Inform SMC about channel establishment failure */ |
| 203 | gsm411_smc_recv(&trans->sms.smc_inst, |
| 204 | GSM411_MMSMS_REL_IND, NULL, 0); |
| 205 | trans_free(trans); |
| 206 | return -EIO; |
| 207 | } |
| 208 | |
| 209 | return 0; |
| 210 | } |
| 211 | |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 212 | /* Prefix msg with a 04.08/04.11 CP header */ |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 213 | static int gsm411_cp_sendmsg(struct msgb *msg, struct gsm_trans *trans, |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 214 | uint8_t msg_type) |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 215 | { |
| 216 | struct gsm48_hdr *gh; |
| 217 | |
| 218 | gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh)); |
| 219 | /* Outgoing needs the highest bit set */ |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 220 | gh->proto_discr = trans->protocol | (trans->transaction_id<<4); |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 221 | gh->msg_type = msg_type; |
Harald Welte | 0e2fa5d | 2018-04-09 16:35:01 +0200 | [diff] [blame] | 222 | OMSC_LINKID_CB(msg) = trans->dlci; |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 223 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 224 | DEBUGP(DLSMS, "sending CP message (trans=%x)\n", trans->transaction_id); |
Harald Welte (local) | c89a511 | 2009-08-14 10:42:43 +0200 | [diff] [blame] | 225 | |
Holger Hans Peter Freyther | 536a10b | 2012-11-24 17:13:56 +0100 | [diff] [blame] | 226 | return gsm411_sendmsg(trans->conn, msg); |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 227 | } |
| 228 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 229 | /* mm_send: receive MMCCSMS sap message from SMC */ |
| 230 | static int gsm411_mm_send(struct gsm411_smc_inst *inst, int msg_type, |
| 231 | struct msgb *msg, int cp_msg_type) |
| 232 | { |
| 233 | struct gsm_trans *trans = |
| 234 | container_of(inst, struct gsm_trans, sms.smc_inst); |
| 235 | int rc = 0; |
| 236 | |
| 237 | switch (msg_type) { |
| 238 | case GSM411_MMSMS_EST_REQ: |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 239 | rc = gsm411_mmsms_est_req(trans); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 240 | msgb_free(msg); /* upper layer does not free msg */ |
| 241 | break; |
| 242 | case GSM411_MMSMS_DATA_REQ: |
| 243 | rc = gsm411_cp_sendmsg(msg, trans, cp_msg_type); |
| 244 | break; |
| 245 | case GSM411_MMSMS_REL_REQ: |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 246 | DEBUGP(DLSMS, "Got MMSMS_REL_REQ, destroying transaction.\n"); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 247 | msgb_free(msg); |
| 248 | trans_free(trans); |
| 249 | break; |
| 250 | default: |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 251 | LOGP(DLSMS, LOGL_NOTICE, "Unhandled MMCCSMS msg 0x%x\n", msg_type); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 252 | msgb_free(msg); |
| 253 | rc = -EINVAL; |
| 254 | } |
| 255 | |
| 256 | return rc; |
| 257 | } |
| 258 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 259 | /* mm_send: receive MNCCSMS sap message from SMR */ |
| 260 | int gsm411_mn_send(struct gsm411_smr_inst *inst, int msg_type, |
| 261 | struct msgb *msg) |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 262 | { |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 263 | struct gsm_trans *trans = |
| 264 | container_of(inst, struct gsm_trans, sms.smr_inst); |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 265 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 266 | /* forward to SMC */ |
| 267 | return gsm411_smc_send(&trans->sms.smc_inst, msg_type, msg); |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 268 | } |
| 269 | |
Pablo Neira Ayuso | c022719 | 2017-07-24 18:32:41 +0200 | [diff] [blame] | 270 | static int gsm340_rx_sms_submit(struct gsm_sms *gsms) |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 271 | { |
| 272 | if (db_sms_store(gsms) != 0) { |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 273 | LOGP(DLSMS, LOGL_ERROR, "Failed to store SMS in Database\n"); |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 274 | return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 275 | } |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 276 | /* dispatch a signal to tell higher level about it */ |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 277 | send_signal(S_SMS_SUBMITTED, NULL, gsms, 0); |
Harald Welte (local) | ee4410a | 2009-08-17 09:39:55 +0200 | [diff] [blame] | 278 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 279 | return 0; |
| 280 | } |
| 281 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 282 | /* generate a TPDU address field compliant with 03.40 sec. 9.1.2.5 */ |
Holger Hans Peter Freyther | 366c331 | 2012-11-10 18:24:54 +0100 | [diff] [blame] | 283 | static int gsm340_gen_oa_sub(uint8_t *oa, unsigned int oa_len, |
Harald Welte | c0de14d | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 284 | const struct gsm_sms_addr *src) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 285 | { |
Holger Hans Peter Freyther | 366c331 | 2012-11-10 18:24:54 +0100 | [diff] [blame] | 286 | /* network specific, private numbering plan */ |
Harald Welte | c0de14d | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 287 | return gsm340_gen_oa(oa, oa_len, src->ton, src->npi, src->addr); |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 288 | } |
| 289 | |
Alexander Chemeris | 9e15e18 | 2014-03-08 23:54:28 +0100 | [diff] [blame] | 290 | /* generate a msgb containing an 03.40 9.2.2.1 SMS-DELIVER TPDU derived from |
| 291 | * struct gsm_sms, returns total size of TPDU */ |
| 292 | static int gsm340_gen_sms_deliver_tpdu(struct msgb *msg, struct gsm_sms *sms) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 293 | { |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 294 | uint8_t *smsp; |
| 295 | uint8_t oa[12]; /* max len per 03.40 */ |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 296 | uint8_t octet_len; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 297 | unsigned int old_msg_len = msg->len; |
Pablo Neira Ayuso | 4b50924 | 2017-08-10 09:38:58 +0200 | [diff] [blame] | 298 | int oa_len; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 299 | |
| 300 | /* generate first octet with masked bits */ |
| 301 | smsp = msgb_put(msg, 1); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 302 | /* TP-MTI (message type indicator) */ |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 303 | *smsp = GSM340_SMS_DELIVER_SC2MS; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 304 | /* TP-MMS (more messages to send) */ |
| 305 | if (0 /* FIXME */) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 306 | *smsp |= 0x04; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 307 | /* TP-SRI(deliver)/SRR(submit) */ |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 308 | if (sms->status_rep_req) |
| 309 | *smsp |= 0x20; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 310 | /* TP-UDHI (indicating TP-UD contains a header) */ |
| 311 | if (sms->ud_hdr_ind) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 312 | *smsp |= 0x40; |
Harald Welte | c0de14d | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 313 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 314 | /* generate originator address */ |
Harald Welte | c0de14d | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 315 | oa_len = gsm340_gen_oa_sub(oa, sizeof(oa), &sms->src); |
Pablo Neira Ayuso | 4b50924 | 2017-08-10 09:38:58 +0200 | [diff] [blame] | 316 | if (oa_len < 0) |
| 317 | return -ENOSPC; |
| 318 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 319 | smsp = msgb_put(msg, oa_len); |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 320 | memcpy(smsp, oa, oa_len); |
| 321 | |
| 322 | /* generate TP-PID */ |
| 323 | smsp = msgb_put(msg, 1); |
| 324 | *smsp = sms->protocol_id; |
| 325 | |
| 326 | /* generate TP-DCS */ |
| 327 | smsp = msgb_put(msg, 1); |
| 328 | *smsp = sms->data_coding_scheme; |
| 329 | |
| 330 | /* generate TP-SCTS */ |
| 331 | smsp = msgb_put(msg, 7); |
| 332 | gsm340_gen_scts(smsp, time(NULL)); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 333 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 334 | /* generate TP-UDL */ |
| 335 | smsp = msgb_put(msg, 1); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 336 | *smsp = sms->user_data_len; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 337 | |
| 338 | /* generate TP-UD */ |
Daniel Willmann | 6b024cb | 2009-08-15 03:01:46 +0200 | [diff] [blame] | 339 | switch (gsm338_get_sms_alphabet(sms->data_coding_scheme)) { |
| 340 | case DCS_7BIT_DEFAULT: |
Daniel Willmann | 9aef145 | 2009-08-13 03:39:07 +0200 | [diff] [blame] | 341 | octet_len = sms->user_data_len*7/8; |
| 342 | if (sms->user_data_len*7%8 != 0) |
| 343 | octet_len++; |
Daniel Willmann | 6b1e822 | 2009-08-12 21:17:06 +0200 | [diff] [blame] | 344 | /* Warning, user_data_len indicates the amount of septets |
| 345 | * (characters), we need amount of octets occupied */ |
Daniel Willmann | 9aef145 | 2009-08-13 03:39:07 +0200 | [diff] [blame] | 346 | smsp = msgb_put(msg, octet_len); |
| 347 | memcpy(smsp, sms->user_data, octet_len); |
Daniel Willmann | 6b024cb | 2009-08-15 03:01:46 +0200 | [diff] [blame] | 348 | break; |
| 349 | case DCS_UCS2: |
| 350 | case DCS_8BIT_DATA: |
| 351 | smsp = msgb_put(msg, sms->user_data_len); |
| 352 | memcpy(smsp, sms->user_data, sms->user_data_len); |
| 353 | break; |
| 354 | default: |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 355 | LOGP(DLSMS, LOGL_NOTICE, "Unhandled Data Coding Scheme: 0x%02X\n", |
Harald Welte | d0cf7ba | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 356 | sms->data_coding_scheme); |
Daniel Willmann | 6b024cb | 2009-08-15 03:01:46 +0200 | [diff] [blame] | 357 | break; |
Daniel Willmann | 6b1e822 | 2009-08-12 21:17:06 +0200 | [diff] [blame] | 358 | } |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 359 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 360 | return msg->len - old_msg_len; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 361 | } |
| 362 | |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 363 | /* As defined by GSM 03.40, Section 9.2.2.3. */ |
| 364 | static int gsm340_gen_sms_status_report_tpdu(struct msgb *msg, |
| 365 | struct gsm_sms *sms) |
| 366 | { |
| 367 | unsigned int old_msg_len = msg->len; |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 368 | uint8_t oa[12]; /* max len per 03.40 */ |
| 369 | uint8_t *smsp; |
Pablo Neira Ayuso | 4b50924 | 2017-08-10 09:38:58 +0200 | [diff] [blame] | 370 | int oa_len; |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 371 | |
| 372 | /* generate first octet with masked bits */ |
| 373 | smsp = msgb_put(msg, 1); |
| 374 | /* TP-MTI (message type indicator) */ |
| 375 | *smsp = GSM340_SMS_STATUS_REP_SC2MS; |
| 376 | /* TP-MMS (more messages to send) */ |
| 377 | if (0 /* FIXME */) |
| 378 | *smsp |= 0x04; |
| 379 | /* TP-MR (message reference) */ |
| 380 | smsp = msgb_put(msg, 1); |
| 381 | *smsp = sms->msg_ref; |
Pablo Neira Ayuso | 4b50924 | 2017-08-10 09:38:58 +0200 | [diff] [blame] | 382 | |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 383 | /* generate recipient address */ |
Keith | ab9d863 | 2017-08-14 15:06:33 +0200 | [diff] [blame] | 384 | oa_len = gsm340_gen_oa_sub(oa, sizeof(oa), &sms->src); |
Pablo Neira Ayuso | 4b50924 | 2017-08-10 09:38:58 +0200 | [diff] [blame] | 385 | if (oa_len < 0) |
| 386 | return -ENOSPC; |
| 387 | |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 388 | smsp = msgb_put(msg, oa_len); |
| 389 | memcpy(smsp, oa, oa_len); |
| 390 | |
| 391 | /* generate TP-SCTS (Service centre timestamp) */ |
| 392 | smsp = msgb_put(msg, 7); |
Keith | c601adc | 2017-08-16 22:45:07 +0200 | [diff] [blame] | 393 | gsm340_gen_scts(smsp, sms->created); |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 394 | |
| 395 | /* generate TP-DT (Discharge time, in TP-SCTS format). */ |
| 396 | smsp = msgb_put(msg, 7); |
Keith | c601adc | 2017-08-16 22:45:07 +0200 | [diff] [blame] | 397 | gsm340_gen_scts(smsp, sms->created); |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 398 | |
| 399 | /* TP-ST (status) */ |
| 400 | smsp = msgb_put(msg, 1); |
| 401 | /* From GSM 03.40, Section 9.2.3.15, 0x00 means OK. */ |
| 402 | *smsp = 0x00; |
| 403 | |
| 404 | LOGP(DLSMS, LOGL_INFO, "sending status report for SMS reference %x\n", |
| 405 | sms->msg_ref); |
| 406 | |
| 407 | return msg->len - old_msg_len; |
| 408 | } |
| 409 | |
Neels Hofmeyr | c036b79 | 2018-11-29 22:37:51 +0100 | [diff] [blame] | 410 | static int sms_route_mt_sms(struct ran_conn *conn, |
Pablo Neira Ayuso | 3c14803 | 2017-08-07 14:01:13 +0100 | [diff] [blame] | 411 | struct gsm_sms *gsms) |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 412 | { |
| 413 | int rc; |
| 414 | |
Holger Hans Peter Freyther | 42cf2e0 | 2015-07-06 16:41:30 +0200 | [diff] [blame] | 415 | #ifdef BUILD_SMPP |
Holger Hans Peter Freyther | 7c19c6b | 2015-07-13 10:39:51 +0200 | [diff] [blame] | 416 | int smpp_first = smpp_route_smpp_first(gsms, conn); |
| 417 | |
Holger Hans Peter Freyther | 42cf2e0 | 2015-07-06 16:41:30 +0200 | [diff] [blame] | 418 | /* |
| 419 | * Route through SMPP first before going to the local database. In case |
| 420 | * of a unroutable message and no local subscriber, SMPP will be tried |
| 421 | * twice. In case of an unknown subscriber continue with the normal |
| 422 | * delivery of the SMS. |
| 423 | */ |
Holger Hans Peter Freyther | 7c19c6b | 2015-07-13 10:39:51 +0200 | [diff] [blame] | 424 | if (smpp_first) { |
Pablo Neira Ayuso | fdc9966 | 2017-08-07 14:01:10 +0100 | [diff] [blame] | 425 | rc = smpp_try_deliver(gsms, conn); |
Pablo Neira Ayuso | 638ad06 | 2017-05-03 18:59:05 +0200 | [diff] [blame] | 426 | if (rc == GSM411_RP_CAUSE_MO_NUM_UNASSIGNED) |
Benoit Bolsee | d34ed57 | 2017-07-05 11:46:55 +0200 | [diff] [blame] | 427 | /* unknown subscriber, try local */ |
Holger Hans Peter Freyther | 42cf2e0 | 2015-07-06 16:41:30 +0200 | [diff] [blame] | 428 | goto try_local; |
| 429 | if (rc < 0) { |
Alexander Couzens | aa386d2 | 2016-08-21 20:16:33 +0200 | [diff] [blame] | 430 | LOGP(DLSMS, LOGL_ERROR, "%s: SMS delivery error: %d.", |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 431 | vlr_subscr_name(conn->vsub), rc); |
Alexander Couzens | aa386d2 | 2016-08-21 20:16:33 +0200 | [diff] [blame] | 432 | rc = GSM411_RP_CAUSE_MO_TEMP_FAIL; |
| 433 | /* rc will be logged by gsm411_send_rp_error() */ |
Harald Welte | d35038d | 2018-01-25 00:07:33 +0100 | [diff] [blame] | 434 | rate_ctr_inc(&conn->network->msc_ctrs->ctr[ |
Alexander Couzens | aa386d2 | 2016-08-21 20:16:33 +0200 | [diff] [blame] | 435 | MSC_CTR_SMS_DELIVER_UNKNOWN_ERROR]); |
Holger Hans Peter Freyther | 42cf2e0 | 2015-07-06 16:41:30 +0200 | [diff] [blame] | 436 | } |
| 437 | return rc; |
| 438 | } |
| 439 | |
| 440 | try_local: |
| 441 | #endif |
| 442 | |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 443 | /* determine gsms->receiver based on dialled number */ |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 444 | gsms->receiver = vlr_subscr_find_by_msisdn(conn->network->vlr, |
| 445 | gsms->dst.addr); |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 446 | if (!gsms->receiver) { |
| 447 | #ifdef BUILD_SMPP |
Holger Hans Peter Freyther | 7c19c6b | 2015-07-13 10:39:51 +0200 | [diff] [blame] | 448 | /* Avoid a second look-up */ |
Alexander Couzens | 7130683 | 2016-07-12 16:52:32 +0200 | [diff] [blame] | 449 | if (smpp_first) { |
Neels Hofmeyr | a9f2bb5 | 2016-05-09 21:09:47 +0200 | [diff] [blame] | 450 | rate_ctr_inc(&conn->network->msc_ctrs->ctr[MSC_CTR_SMS_NO_RECEIVER]); |
Pablo Neira Ayuso | 638ad06 | 2017-05-03 18:59:05 +0200 | [diff] [blame] | 451 | return GSM411_RP_CAUSE_MO_NUM_UNASSIGNED; |
Alexander Couzens | 7130683 | 2016-07-12 16:52:32 +0200 | [diff] [blame] | 452 | } |
Holger Hans Peter Freyther | 7c19c6b | 2015-07-13 10:39:51 +0200 | [diff] [blame] | 453 | |
Pablo Neira Ayuso | fdc9966 | 2017-08-07 14:01:10 +0100 | [diff] [blame] | 454 | rc = smpp_try_deliver(gsms, conn); |
Pablo Neira Ayuso | 638ad06 | 2017-05-03 18:59:05 +0200 | [diff] [blame] | 455 | if (rc == GSM411_RP_CAUSE_MO_NUM_UNASSIGNED) { |
Neels Hofmeyr | a9f2bb5 | 2016-05-09 21:09:47 +0200 | [diff] [blame] | 456 | rate_ctr_inc(&conn->network->msc_ctrs->ctr[MSC_CTR_SMS_NO_RECEIVER]); |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 457 | } else if (rc < 0) { |
Alexander Couzens | aa386d2 | 2016-08-21 20:16:33 +0200 | [diff] [blame] | 458 | LOGP(DLSMS, LOGL_ERROR, "%s: SMS delivery error: %d.", |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 459 | vlr_subscr_name(conn->vsub), rc); |
Alexander Couzens | aa386d2 | 2016-08-21 20:16:33 +0200 | [diff] [blame] | 460 | rc = GSM411_RP_CAUSE_MO_TEMP_FAIL; |
| 461 | /* rc will be logged by gsm411_send_rp_error() */ |
Harald Welte | d35038d | 2018-01-25 00:07:33 +0100 | [diff] [blame] | 462 | rate_ctr_inc(&conn->network->msc_ctrs->ctr[ |
Alexander Couzens | aa386d2 | 2016-08-21 20:16:33 +0200 | [diff] [blame] | 463 | MSC_CTR_SMS_DELIVER_UNKNOWN_ERROR]); |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 464 | } |
| 465 | #else |
Pablo Neira Ayuso | 638ad06 | 2017-05-03 18:59:05 +0200 | [diff] [blame] | 466 | rc = GSM411_RP_CAUSE_MO_NUM_UNASSIGNED; |
Neels Hofmeyr | a9f2bb5 | 2016-05-09 21:09:47 +0200 | [diff] [blame] | 467 | rate_ctr_inc(&conn->network->msc_ctrs->ctr[MSC_CTR_SMS_NO_RECEIVER]); |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 468 | #endif |
Harald Welte | 0f2555e | 2017-11-06 03:43:21 +0900 | [diff] [blame] | 469 | } else |
| 470 | rc = 0; |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 471 | |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 472 | return rc; |
| 473 | } |
| 474 | |
| 475 | |
Holger Hans Peter Freyther | acf8a0c | 2010-03-29 08:47:44 +0200 | [diff] [blame] | 476 | /* process an incoming TPDU (called from RP-DATA) |
| 477 | * return value > 0: RP CAUSE for ERROR; < 0: silent error; 0 = success */ |
Pablo Neira Ayuso | 93ffbd0 | 2017-05-04 18:44:22 +0200 | [diff] [blame] | 478 | static int gsm340_rx_tpdu(struct gsm_trans *trans, struct msgb *msg, |
Pablo Neira Ayuso | fdc9966 | 2017-08-07 14:01:10 +0100 | [diff] [blame] | 479 | uint32_t gsm411_msg_ref) |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 480 | { |
Neels Hofmeyr | c036b79 | 2018-11-29 22:37:51 +0100 | [diff] [blame] | 481 | struct ran_conn *conn = trans->conn; |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 482 | uint8_t *smsp = msgb_sms(msg); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 483 | struct gsm_sms *gsms; |
Harald Welte | 258c713 | 2011-07-16 13:34:52 +0200 | [diff] [blame] | 484 | unsigned int sms_alphabet; |
Neels Hofmeyr | 58d5430 | 2016-02-24 19:30:52 +0100 | [diff] [blame] | 485 | uint8_t sms_mti, sms_vpf; |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 486 | uint8_t *sms_vp; |
| 487 | uint8_t da_len_bytes; |
| 488 | uint8_t address_lv[12]; /* according to 03.40 / 9.1.2.5 */ |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 489 | int rc = 0; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 490 | |
Neels Hofmeyr | a9f2bb5 | 2016-05-09 21:09:47 +0200 | [diff] [blame] | 491 | rate_ctr_inc(&conn->network->msc_ctrs->ctr[MSC_CTR_SMS_SUBMITTED]); |
Harald Welte | 24ff6ee | 2009-12-22 00:41:05 +0100 | [diff] [blame] | 492 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 493 | gsms = sms_alloc(); |
| 494 | if (!gsms) |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 495 | return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 496 | |
| 497 | /* invert those fields where 0 means active/present */ |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 498 | sms_mti = *smsp & 0x03; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 499 | sms_vpf = (*smsp & 0x18) >> 3; |
Pablo Neira Ayuso | db5ed3b | 2017-08-07 14:01:21 +0100 | [diff] [blame] | 500 | gsms->status_rep_req = (*smsp & 0x20) >> 5; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 501 | gsms->ud_hdr_ind = (*smsp & 0x40); |
Neels Hofmeyr | 58d5430 | 2016-02-24 19:30:52 +0100 | [diff] [blame] | 502 | /* |
| 503 | * Not evaluating MMS (More Messages to Send) because the |
| 504 | * lchan stays open anyway. |
| 505 | * Not evaluating RP (Reply Path) because we're not aware of its |
| 506 | * benefits. |
| 507 | */ |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 508 | |
| 509 | smsp++; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 510 | gsms->msg_ref = *smsp++; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 511 | |
Pablo Neira Ayuso | 93ffbd0 | 2017-05-04 18:44:22 +0200 | [diff] [blame] | 512 | gsms->gsm411.transaction_id = trans->transaction_id; |
| 513 | gsms->gsm411.msg_ref = gsm411_msg_ref; |
| 514 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 515 | /* length in bytes of the destination address */ |
| 516 | da_len_bytes = 2 + *smsp/2 + *smsp%2; |
| 517 | if (da_len_bytes > 12) { |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 518 | LOGP(DLSMS, LOGL_ERROR, "Destination Address > 12 bytes ?!?\n"); |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 519 | rc = GSM411_RP_CAUSE_SEMANT_INC_MSG; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 520 | goto out; |
Harald Welte | e07b6a7 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 521 | } else if (da_len_bytes < 4) { |
| 522 | LOGP(DLSMS, LOGL_ERROR, "Destination Address < 4 bytes ?!?\n"); |
| 523 | rc = GSM411_RP_CAUSE_SEMANT_INC_MSG; |
| 524 | goto out; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 525 | } |
Harald Welte | 3cfdb22 | 2009-06-12 02:42:11 +0800 | [diff] [blame] | 526 | memset(address_lv, 0, sizeof(address_lv)); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 527 | memcpy(address_lv, smsp, da_len_bytes); |
| 528 | /* mangle first byte to reflect length in bytes, not digits */ |
Harald Welte | 3cfdb22 | 2009-06-12 02:42:11 +0800 | [diff] [blame] | 529 | address_lv[0] = da_len_bytes - 1; |
Harald Welte | e07b6a7 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 530 | |
Harald Welte | c0de14d | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 531 | gsms->dst.ton = (address_lv[1] >> 4) & 7; |
| 532 | gsms->dst.npi = address_lv[1] & 0xF; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 533 | /* convert to real number */ |
Harald Welte | c0de14d | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 534 | gsm48_decode_bcd_number(gsms->dst.addr, |
| 535 | sizeof(gsms->dst.addr), address_lv, 1); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 536 | smsp += da_len_bytes; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 537 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 538 | gsms->protocol_id = *smsp++; |
| 539 | gsms->data_coding_scheme = *smsp++; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 540 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 541 | sms_alphabet = gsm338_get_sms_alphabet(gsms->data_coding_scheme); |
Holger Hans Peter Freyther | 8e78fa7 | 2010-06-14 16:13:16 +0800 | [diff] [blame] | 542 | if (sms_alphabet == 0xffffffff) { |
Alexander Chemeris | 4ad593c | 2013-10-04 02:42:27 +0200 | [diff] [blame] | 543 | rc = GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
| 544 | goto out; |
Holger Hans Peter Freyther | 8e78fa7 | 2010-06-14 16:13:16 +0800 | [diff] [blame] | 545 | } |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 546 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 547 | switch (sms_vpf) { |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 548 | case GSM340_TP_VPF_RELATIVE: |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 549 | sms_vp = smsp++; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 550 | break; |
| 551 | case GSM340_TP_VPF_ABSOLUTE: |
| 552 | case GSM340_TP_VPF_ENHANCED: |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 553 | sms_vp = smsp; |
Steffen Neubauer | f326267 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 554 | /* the additional functionality indicator... */ |
Steffen Neubauer | ac0c13c | 2009-12-05 12:44:41 +0100 | [diff] [blame] | 555 | if (sms_vpf == GSM340_TP_VPF_ENHANCED && *smsp & (1<<7)) |
| 556 | smsp++; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 557 | smsp += 7; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 558 | break; |
Daniel Willmann | 58c83d8 | 2009-08-13 03:40:49 +0200 | [diff] [blame] | 559 | case GSM340_TP_VPF_NONE: |
| 560 | sms_vp = 0; |
| 561 | break; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 562 | default: |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 563 | LOGP(DLSMS, LOGL_NOTICE, |
Harald Welte | d0cf7ba | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 564 | "SMS Validity period not implemented: 0x%02x\n", sms_vpf); |
Alexander Chemeris | 4ad593c | 2013-10-04 02:42:27 +0200 | [diff] [blame] | 565 | rc = GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
| 566 | goto out; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 567 | } |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 568 | gsms->user_data_len = *smsp++; |
| 569 | if (gsms->user_data_len) { |
| 570 | memcpy(gsms->user_data, smsp, gsms->user_data_len); |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 571 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 572 | switch (sms_alphabet) { |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 573 | case DCS_7BIT_DEFAULT: |
Harald Welte | 5468f76 | 2015-01-01 12:41:17 +0100 | [diff] [blame] | 574 | gsm_7bit_decode_n(gsms->text, sizeof(gsms->text), smsp, |
| 575 | gsms->user_data_len); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 576 | break; |
| 577 | case DCS_8BIT_DATA: |
| 578 | case DCS_UCS2: |
| 579 | case DCS_NONE: |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 580 | break; |
| 581 | } |
| 582 | } |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 583 | |
Max | 98f7467 | 2018-02-05 12:57:06 +0100 | [diff] [blame] | 584 | OSMO_STRLCPY_ARRAY(gsms->src.addr, conn->vsub->msisdn); |
Harald Welte | d0cf7ba | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 585 | |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 586 | LOGP(DLSMS, LOGL_INFO, "RX SMS: Sender: %s, MTI: 0x%02x, VPF: 0x%02x, " |
Harald Welte | d0cf7ba | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 587 | "MR: 0x%02x PID: 0x%02x, DCS: 0x%02x, DA: %s, " |
| 588 | "UserDataLength: 0x%02x, UserData: \"%s\"\n", |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 589 | vlr_subscr_name(conn->vsub), sms_mti, sms_vpf, gsms->msg_ref, |
Harald Welte | c0de14d | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 590 | gsms->protocol_id, gsms->data_coding_scheme, gsms->dst.addr, |
Harald Welte | d0cf7ba | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 591 | gsms->user_data_len, |
Holger Hans Peter Freyther | acf8a0c | 2010-03-29 08:47:44 +0200 | [diff] [blame] | 592 | sms_alphabet == DCS_7BIT_DEFAULT ? gsms->text : |
Pablo Neira Ayuso | c0d17f2 | 2011-05-07 12:12:48 +0200 | [diff] [blame] | 593 | osmo_hexdump(gsms->user_data, gsms->user_data_len)); |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 594 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 595 | gsms->validity_minutes = gsm340_validity_period(sms_vpf, sms_vp); |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 596 | |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 597 | /* FIXME: This looks very wrong */ |
| 598 | send_signal(0, NULL, gsms, 0); |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 599 | |
Pablo Neira Ayuso | 3c14803 | 2017-08-07 14:01:13 +0100 | [diff] [blame] | 600 | rc = sms_route_mt_sms(conn, gsms); |
| 601 | |
Stefan Sperling | 1e67fea | 2018-01-22 18:33:42 +0100 | [diff] [blame] | 602 | /* |
| 603 | * This SMS got routed through SMPP or no receiver exists. |
| 604 | * In any case, we store it in the database for further processing. |
| 605 | */ |
Pablo Neira Ayuso | 3c14803 | 2017-08-07 14:01:13 +0100 | [diff] [blame] | 606 | |
| 607 | switch (sms_mti) { |
| 608 | case GSM340_SMS_SUBMIT_MS2SC: |
| 609 | /* MS is submitting a SMS */ |
| 610 | rc = gsm340_rx_sms_submit(gsms); |
| 611 | break; |
| 612 | case GSM340_SMS_COMMAND_MS2SC: |
| 613 | case GSM340_SMS_DELIVER_REP_MS2SC: |
| 614 | LOGP(DLSMS, LOGL_NOTICE, "Unimplemented MTI 0x%02x\n", sms_mti); |
| 615 | rc = GSM411_RP_CAUSE_IE_NOTEXIST; |
| 616 | break; |
| 617 | default: |
| 618 | LOGP(DLSMS, LOGL_NOTICE, "Undefined MTI 0x%02x\n", sms_mti); |
| 619 | rc = GSM411_RP_CAUSE_IE_NOTEXIST; |
| 620 | break; |
| 621 | } |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 622 | out: |
Pablo Neira Ayuso | fdc9966 | 2017-08-07 14:01:10 +0100 | [diff] [blame] | 623 | sms_free(gsms); |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 624 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 625 | return rc; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 626 | } |
| 627 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 628 | /* Prefix msg with a RP-DATA header and send as SMR DATA */ |
| 629 | static int gsm411_rp_sendmsg(struct gsm411_smr_inst *inst, struct msgb *msg, |
| 630 | uint8_t rp_msg_type, uint8_t rp_msg_ref, |
| 631 | int rl_msg_type) |
| 632 | { |
| 633 | struct gsm411_rp_hdr *rp; |
| 634 | uint8_t len = msg->len; |
| 635 | |
| 636 | /* GSM 04.11 RP-DATA header */ |
| 637 | rp = (struct gsm411_rp_hdr *)msgb_push(msg, sizeof(*rp)); |
| 638 | rp->len = len + 2; |
| 639 | rp->msg_type = rp_msg_type; |
Holger Hans Peter Freyther | ca11443 | 2014-02-08 15:20:48 +0100 | [diff] [blame] | 640 | rp->msg_ref = rp_msg_ref; |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 641 | |
| 642 | return gsm411_smr_send(inst, rl_msg_type, msg); |
| 643 | } |
| 644 | |
Pablo Neira Ayuso | 93ffbd0 | 2017-05-04 18:44:22 +0200 | [diff] [blame] | 645 | int gsm411_send_rp_ack(struct gsm_trans *trans, uint8_t msg_ref) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 646 | { |
| 647 | struct msgb *msg = gsm411_msgb_alloc(); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 648 | |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 649 | DEBUGP(DLSMS, "TX: SMS RP ACK\n"); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 650 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 651 | return gsm411_rp_sendmsg(&trans->sms.smr_inst, msg, GSM411_MT_RP_ACK_MT, |
| 652 | msg_ref, GSM411_SM_RL_REPORT_REQ); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 653 | } |
| 654 | |
Pablo Neira Ayuso | 93ffbd0 | 2017-05-04 18:44:22 +0200 | [diff] [blame] | 655 | int gsm411_send_rp_error(struct gsm_trans *trans, uint8_t msg_ref, |
| 656 | uint8_t cause) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 657 | { |
| 658 | struct msgb *msg = gsm411_msgb_alloc(); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 659 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 660 | msgb_tv_put(msg, 1, cause); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 661 | |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 662 | LOGP(DLSMS, LOGL_NOTICE, "TX: SMS RP ERROR, cause %d (%s)\n", cause, |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 663 | get_value_string(gsm411_rp_cause_strs, cause)); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 664 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 665 | return gsm411_rp_sendmsg(&trans->sms.smr_inst, msg, |
| 666 | GSM411_MT_RP_ERROR_MT, msg_ref, GSM411_SM_RL_REPORT_REQ); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 667 | } |
| 668 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 669 | /* Receive a 04.11 TPDU inside RP-DATA / user data */ |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 670 | static int gsm411_rx_rp_ud(struct msgb *msg, struct gsm_trans *trans, |
Vadim Yanitskiy | 76ef72d | 2018-11-07 05:08:18 +0700 | [diff] [blame] | 671 | struct gsm411_rp_hdr *rph, |
| 672 | uint8_t *dst, uint8_t dst_len) |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 673 | { |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 674 | int rc = 0; |
| 675 | |
Vadim Yanitskiy | 76ef72d | 2018-11-07 05:08:18 +0700 | [diff] [blame] | 676 | if (trans->net->sms_over_gsup) { |
| 677 | /* RP-ACK or RP-ERROR is triggered as soon as we get the response */ |
| 678 | rc = gsm411_gsup_mo_fwd_sm_req(trans, msg, rph->msg_ref, dst, dst_len); |
| 679 | if (rc) /* GSUP message sending error */ |
| 680 | return gsm411_send_rp_error(trans, rph->msg_ref, rc); |
| 681 | |
| 682 | return 0; |
| 683 | } |
| 684 | |
Pablo Neira Ayuso | fdc9966 | 2017-08-07 14:01:10 +0100 | [diff] [blame] | 685 | rc = gsm340_rx_tpdu(trans, msg, rph->msg_ref); |
| 686 | if (rc == 0) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 687 | return gsm411_send_rp_ack(trans, rph->msg_ref); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 688 | else if (rc > 0) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 689 | return gsm411_send_rp_error(trans, rph->msg_ref, rc); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 690 | else |
| 691 | return rc; |
| 692 | } |
| 693 | |
| 694 | /* Receive a 04.11 RP-DATA message in accordance with Section 7.3.1.2 */ |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 695 | static int gsm411_rx_rp_data(struct msgb *msg, struct gsm_trans *trans, |
| 696 | struct gsm411_rp_hdr *rph) |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 697 | { |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 698 | uint8_t src_len, dst_len, rpud_len; |
| 699 | uint8_t *src = NULL, *dst = NULL , *rp_ud = NULL; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 700 | |
| 701 | /* in the MO case, this should always be zero length */ |
| 702 | src_len = rph->data[0]; |
| 703 | if (src_len) |
| 704 | src = &rph->data[1]; |
| 705 | |
| 706 | dst_len = rph->data[1+src_len]; |
| 707 | if (dst_len) |
| 708 | dst = &rph->data[1+src_len+1]; |
| 709 | |
| 710 | rpud_len = rph->data[1+src_len+1+dst_len]; |
| 711 | if (rpud_len) |
| 712 | rp_ud = &rph->data[1+src_len+1+dst_len+1]; |
| 713 | |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 714 | DEBUGP(DLSMS, "RX_RP-DATA: src_len=%u, dst_len=%u ud_len=%u\n", |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 715 | src_len, dst_len, rpud_len); |
Vadim Yanitskiy | 535f110 | 2018-11-07 03:20:00 +0700 | [diff] [blame] | 716 | |
| 717 | if (src_len && src) |
| 718 | LOGP(DLSMS, LOGL_ERROR, "RP-DATA (MO) with SRC ?!?\n"); |
| 719 | |
| 720 | if (!dst_len || !dst || !rpud_len || !rp_ud) { |
| 721 | LOGP(DLSMS, LOGL_ERROR, |
| 722 | "RP-DATA (MO) without DST or TPDU ?!?\n"); |
| 723 | gsm411_send_rp_error(trans, rph->msg_ref, |
| 724 | GSM411_RP_CAUSE_INV_MAND_INF); |
| 725 | return -EIO; |
| 726 | } |
| 727 | |
| 728 | msg->l4h = rp_ud; |
| 729 | |
| 730 | DEBUGP(DLSMS, "DST(%u,%s)\n", dst_len, osmo_hexdump(dst, dst_len)); |
| 731 | |
Vadim Yanitskiy | 76ef72d | 2018-11-07 05:08:18 +0700 | [diff] [blame] | 732 | return gsm411_rx_rp_ud(msg, trans, rph, dst, dst_len); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 733 | } |
| 734 | |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 735 | static struct gsm_sms *sms_report_alloc(struct gsm_sms *sms) |
| 736 | { |
| 737 | struct gsm_sms *sms_report; |
| 738 | int len; |
| 739 | |
| 740 | sms_report = sms_alloc(); |
| 741 | OSMO_ASSERT(sms_report); |
| 742 | |
| 743 | sms_report->msg_ref = sms->msg_ref; |
| 744 | sms_report->protocol_id = sms->protocol_id; |
| 745 | sms_report->data_coding_scheme = GSM338_DCS_1111_8BIT_DATA; |
| 746 | |
| 747 | /* Invert address to send status report back to origin. */ |
| 748 | sms_report->src = sms->dst; |
| 749 | sms_report->dst = sms->src; |
| 750 | |
| 751 | /* As specified by Appendix B. Delivery Receipt Format. |
| 752 | * TODO: Many fields in this string are just set with dummy values, |
| 753 | * revisit this. |
| 754 | */ |
| 755 | len = snprintf((char *)sms_report->user_data, |
| 756 | sizeof(sms_report->user_data), |
| 757 | "id:%.08llu sub:000 dlvrd:000 submit date:YYMMDDhhmm done date:YYMMDDhhmm stat:DELIVRD err:000 text:%.20s", |
Keith | 04982bd | 2017-08-14 15:11:57 +0200 | [diff] [blame] | 758 | sms->id, sms->text); |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 759 | sms_report->user_data_len = len; |
| 760 | LOGP(DLSMS, LOGL_NOTICE, "%s\n", sms_report->user_data); |
| 761 | |
| 762 | /* This represents a sms report. */ |
| 763 | sms_report->is_report = true; |
| 764 | |
| 765 | return sms_report; |
| 766 | } |
| 767 | |
| 768 | static void sms_status_report(struct gsm_sms *gsms, |
Neels Hofmeyr | c036b79 | 2018-11-29 22:37:51 +0100 | [diff] [blame] | 769 | struct ran_conn *conn) |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 770 | { |
| 771 | struct gsm_sms *sms_report; |
| 772 | int rc; |
| 773 | |
| 774 | sms_report = sms_report_alloc(gsms); |
| 775 | |
| 776 | rc = sms_route_mt_sms(conn, sms_report); |
| 777 | if (rc < 0) { |
| 778 | LOGP(DLSMS, LOGL_ERROR, |
| 779 | "Failed to send status report! err=%d\n", rc); |
| 780 | } |
Pablo Neira Ayuso | 27aed14 | 2017-08-07 16:17:17 +0200 | [diff] [blame] | 781 | |
| 782 | /* No route via SMPP, send the GSM 03.40 status-report now. */ |
Keith Whyte | bea25f1 | 2018-11-16 13:29:05 +0000 | [diff] [blame] | 783 | if (sms_report->receiver) |
Pablo Neira Ayuso | 27aed14 | 2017-08-07 16:17:17 +0200 | [diff] [blame] | 784 | gsm340_rx_sms_submit(sms_report); |
| 785 | |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 786 | LOGP(DLSMS, LOGL_NOTICE, "Status report has been sent\n"); |
| 787 | |
| 788 | sms_free(sms_report); |
| 789 | } |
| 790 | |
Harald Welte | cb8f443 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 791 | /* Receive a 04.11 RP-ACK message (response to RP-DATA from us) */ |
Vadim Yanitskiy | 0c8998f | 2018-11-22 16:54:36 +0700 | [diff] [blame] | 792 | static int gsm411_rx_rp_ack(struct gsm_trans *trans, |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 793 | struct gsm411_rp_hdr *rph) |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 794 | { |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 795 | struct gsm_sms *sms = trans->sms.sms; |
| 796 | |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 797 | /* Acnkowledgement to MT RP_DATA, i.e. the MS confirms it |
| 798 | * successfully received a SMS. We can now safely mark it as |
| 799 | * transmitted */ |
| 800 | |
Vadim Yanitskiy | 82cc8a5 | 2018-11-15 01:05:53 +0700 | [diff] [blame] | 801 | if (trans->net->sms_over_gsup) { |
| 802 | /* Forward towards SMSC via GSUP */ |
| 803 | return gsm411_gsup_mt_fwd_sm_res(trans, rph->msg_ref); |
| 804 | } |
| 805 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 806 | if (!sms) { |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 807 | LOGP(DLSMS, LOGL_ERROR, "RX RP-ACK but no sms in transaction?!?\n"); |
Harald Welte | cb8f443 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 808 | return gsm411_send_rp_error(trans, rph->msg_ref, |
| 809 | GSM411_RP_CAUSE_PROTOCOL_ERR); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 810 | } |
| 811 | |
| 812 | /* mark this SMS as sent in database */ |
Alexander Chemeris | 1e77e3d | 2014-03-08 21:27:37 +0100 | [diff] [blame] | 813 | db_sms_mark_delivered(sms); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 814 | |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 815 | send_signal(S_SMS_DELIVERED, trans, sms, 0); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 816 | |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 817 | if (sms->status_rep_req) |
| 818 | sms_status_report(sms, trans->conn); |
| 819 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 820 | sms_free(sms); |
| 821 | trans->sms.sms = NULL; |
| 822 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 823 | return 0; |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 824 | } |
| 825 | |
Vadim Yanitskiy | 0c8998f | 2018-11-22 16:54:36 +0700 | [diff] [blame] | 826 | static int gsm411_rx_rp_error(struct gsm_trans *trans, |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 827 | struct gsm411_rp_hdr *rph) |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 828 | { |
Neels Hofmeyr | a9f2bb5 | 2016-05-09 21:09:47 +0200 | [diff] [blame] | 829 | struct gsm_network *net = trans->conn->network; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 830 | struct gsm_sms *sms = trans->sms.sms; |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 831 | uint8_t cause_len = rph->data[0]; |
| 832 | uint8_t cause = rph->data[1]; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 833 | |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 834 | /* Error in response to MT RP_DATA, i.e. the MS did not |
| 835 | * successfully receive the SMS. We need to investigate |
| 836 | * the cause and take action depending on it */ |
| 837 | |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 838 | LOGP(DLSMS, LOGL_NOTICE, "%s: RX SMS RP-ERROR, cause %d:%d (%s)\n", |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 839 | vlr_subscr_name(trans->conn->vsub), cause_len, cause, |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 840 | get_value_string(gsm411_rp_cause_strs, cause)); |
Harald Welte | 3e0f617 | 2009-07-09 23:52:59 +0200 | [diff] [blame] | 841 | |
Vadim Yanitskiy | 82cc8a5 | 2018-11-15 01:05:53 +0700 | [diff] [blame] | 842 | if (trans->net->sms_over_gsup) { |
| 843 | /* Forward towards SMSC via GSUP */ |
| 844 | return gsm411_gsup_mt_fwd_sm_err(trans, rph->msg_ref, cause); |
| 845 | } |
| 846 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 847 | if (!sms) { |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 848 | LOGP(DLSMS, LOGL_ERROR, |
Harald Welte | d0cf7ba | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 849 | "RX RP-ERR, but no sms in transaction?!?\n"); |
Harald Welte (local) | ee4410a | 2009-08-17 09:39:55 +0200 | [diff] [blame] | 850 | return -EINVAL; |
| 851 | #if 0 |
Harald Welte | cb8f443 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 852 | return gsm411_send_rp_error(trans, rph->msg_ref, |
| 853 | GSM411_RP_CAUSE_PROTOCOL_ERR); |
Harald Welte (local) | ee4410a | 2009-08-17 09:39:55 +0200 | [diff] [blame] | 854 | #endif |
Harald Welte | cb8f443 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 855 | } |
| 856 | |
| 857 | if (cause == GSM411_RP_CAUSE_MT_MEM_EXCEEDED) { |
| 858 | /* MS has not enough memory to store the message. We need |
Holger Hans Peter Freyther | dd715bd | 2010-12-23 22:23:15 +0100 | [diff] [blame] | 859 | * to store this in our database and wait for a SMMA message */ |
Harald Welte | cb8f443 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 860 | /* FIXME */ |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 861 | send_signal(S_SMS_MEM_EXCEEDED, trans, sms, 0); |
Alexander Couzens | b847a21 | 2016-08-02 11:34:11 +0200 | [diff] [blame] | 862 | rate_ctr_inc(&net->msc_ctrs->ctr[MSC_CTR_SMS_RP_ERR_MEM]); |
Holger Hans Peter Freyther | 0eb7666 | 2010-12-24 09:47:04 +0100 | [diff] [blame] | 863 | } else { |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 864 | send_signal(S_SMS_UNKNOWN_ERROR, trans, sms, 0); |
Alexander Couzens | b847a21 | 2016-08-02 11:34:11 +0200 | [diff] [blame] | 865 | rate_ctr_inc(&net->msc_ctrs->ctr[MSC_CTR_SMS_RP_ERR_OTHER]); |
Holger Hans Peter Freyther | 0eb7666 | 2010-12-24 09:47:04 +0100 | [diff] [blame] | 866 | } |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 867 | |
| 868 | sms_free(sms); |
| 869 | trans->sms.sms = NULL; |
| 870 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 871 | return 0; |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 872 | } |
| 873 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 874 | static int gsm411_rx_rp_smma(struct msgb *msg, struct gsm_trans *trans, |
| 875 | struct gsm411_rp_hdr *rph) |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 876 | { |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 877 | int rc; |
| 878 | |
Vadim Yanitskiy | 76ef72d | 2018-11-07 05:08:18 +0700 | [diff] [blame] | 879 | if (trans->net->sms_over_gsup) { |
| 880 | /* RP-ACK or RP-ERROR is triggered as soon as we get the response */ |
| 881 | rc = gsm411_gsup_mo_ready_for_sm_req(trans, rph->msg_ref); |
| 882 | if (rc) /* GSUP message sending error */ |
| 883 | return gsm411_send_rp_error(trans, rph->msg_ref, rc); |
| 884 | |
| 885 | return 0; |
| 886 | } |
| 887 | |
Harald Welte | cf6a381 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 888 | rc = gsm411_send_rp_ack(trans, rph->msg_ref); |
Harald Welte | cf6a381 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 889 | |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 890 | /* MS tells us that it has memory for more SMS, we need |
| 891 | * to check if we have any pending messages for it and then |
| 892 | * transfer those */ |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 893 | send_signal(S_SMS_SMMA, trans, NULL, 0); |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 894 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 895 | return rc; |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 896 | } |
| 897 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 898 | /* receive RL DATA */ |
| 899 | static int gsm411_rx_rl_data(struct msgb *msg, struct gsm48_hdr *gh, |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 900 | struct gsm_trans *trans) |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 901 | { |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 902 | struct gsm411_rp_hdr *rp_data = (struct gsm411_rp_hdr*)&gh->data; |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 903 | uint8_t msg_type = rp_data->msg_type & 0x07; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 904 | int rc = 0; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 905 | |
| 906 | switch (msg_type) { |
| 907 | case GSM411_MT_RP_DATA_MO: |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 908 | DEBUGP(DLSMS, "RX SMS RP-DATA (MO)\n"); |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 909 | rc = gsm411_rx_rp_data(msg, trans, rp_data); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 910 | break; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 911 | case GSM411_MT_RP_SMMA_MO: |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 912 | DEBUGP(DLSMS, "RX SMS RP-SMMA\n"); |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 913 | rc = gsm411_rx_rp_smma(msg, trans, rp_data); |
| 914 | break; |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 915 | default: |
| 916 | LOGP(DLSMS, LOGL_NOTICE, "Invalid RP type 0x%02x\n", msg_type); |
| 917 | rc = -EINVAL; |
| 918 | break; |
| 919 | } |
| 920 | |
| 921 | return rc; |
| 922 | } |
| 923 | |
| 924 | /* receive RL REPORT */ |
| 925 | static int gsm411_rx_rl_report(struct msgb *msg, struct gsm48_hdr *gh, |
| 926 | struct gsm_trans *trans) |
| 927 | { |
| 928 | struct gsm411_rp_hdr *rp_data = (struct gsm411_rp_hdr*)&gh->data; |
| 929 | uint8_t msg_type = rp_data->msg_type & 0x07; |
| 930 | int rc = 0; |
| 931 | |
| 932 | switch (msg_type) { |
| 933 | case GSM411_MT_RP_ACK_MO: |
| 934 | DEBUGP(DLSMS, "RX SMS RP-ACK (MO)\n"); |
Vadim Yanitskiy | 0c8998f | 2018-11-22 16:54:36 +0700 | [diff] [blame] | 935 | rc = gsm411_rx_rp_ack(trans, rp_data); |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 936 | break; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 937 | case GSM411_MT_RP_ERROR_MO: |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 938 | DEBUGP(DLSMS, "RX SMS RP-ERROR (MO)\n"); |
Vadim Yanitskiy | 0c8998f | 2018-11-22 16:54:36 +0700 | [diff] [blame] | 939 | rc = gsm411_rx_rp_error(trans, rp_data); |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 940 | break; |
| 941 | default: |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 942 | LOGP(DLSMS, LOGL_NOTICE, "Invalid RP type 0x%02x\n", msg_type); |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 943 | rc = -EINVAL; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 944 | break; |
| 945 | } |
| 946 | |
| 947 | return rc; |
| 948 | } |
| 949 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 950 | /* receive SM-RL sap message from SMR |
| 951 | * NOTE: Message is freed by sender |
| 952 | */ |
| 953 | int gsm411_rl_recv(struct gsm411_smr_inst *inst, int msg_type, |
| 954 | struct msgb *msg) |
| 955 | { |
| 956 | struct gsm_trans *trans = |
| 957 | container_of(inst, struct gsm_trans, sms.smr_inst); |
| 958 | struct gsm48_hdr *gh = msgb_l3(msg); |
| 959 | int rc = 0; |
| 960 | |
| 961 | switch (msg_type) { |
| 962 | case GSM411_SM_RL_DATA_IND: |
| 963 | rc = gsm411_rx_rl_data(msg, gh, trans); |
| 964 | break; |
| 965 | case GSM411_SM_RL_REPORT_IND: |
| 966 | if (gh) |
| 967 | rc = gsm411_rx_rl_report(msg, gh, trans); |
| 968 | break; |
| 969 | default: |
| 970 | LOGP(DLSMS, LOGL_NOTICE, "Unhandled SM-RL message 0x%x\n", msg_type); |
| 971 | rc = -EINVAL; |
| 972 | } |
| 973 | |
| 974 | return rc; |
| 975 | } |
| 976 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 977 | /* receive MNCCSMS sap message from SMC |
| 978 | * NOTE: Message is freed by sender |
| 979 | */ |
| 980 | static int gsm411_mn_recv(struct gsm411_smc_inst *inst, int msg_type, |
| 981 | struct msgb *msg) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 982 | { |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 983 | struct gsm_trans *trans = |
| 984 | container_of(inst, struct gsm_trans, sms.smc_inst); |
| 985 | struct gsm48_hdr *gh = msgb_l3(msg); |
| 986 | int rc = 0; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 987 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 988 | switch (msg_type) { |
| 989 | case GSM411_MNSMS_EST_IND: |
| 990 | case GSM411_MNSMS_DATA_IND: |
| 991 | DEBUGP(DLSMS, "MNSMS-DATA/EST-IND\n"); |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 992 | rc = gsm411_smr_recv(&trans->sms.smr_inst, msg_type, msg); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 993 | break; |
| 994 | case GSM411_MNSMS_ERROR_IND: |
| 995 | if (gh) |
| 996 | DEBUGP(DLSMS, "MNSMS-ERROR-IND, cause %d (%s)\n", |
| 997 | gh->data[0], |
| 998 | get_value_string(gsm411_cp_cause_strs, |
| 999 | gh->data[0])); |
| 1000 | else |
| 1001 | DEBUGP(DLSMS, "MNSMS-ERROR-IND, no cause\n"); |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 1002 | rc = gsm411_smr_recv(&trans->sms.smr_inst, msg_type, msg); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1003 | break; |
| 1004 | default: |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 1005 | LOGP(DLSMS, LOGL_NOTICE, "Unhandled MNCCSMS msg 0x%x\n", msg_type); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1006 | rc = -EINVAL; |
Harald Welte | cf6a381 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1007 | } |
Holger Hans Peter Freyther | 09e364b | 2009-08-10 07:59:27 +0200 | [diff] [blame] | 1008 | |
| 1009 | return rc; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1010 | } |
| 1011 | |
Max | 0e8dfad | 2019-01-16 12:05:30 +0100 | [diff] [blame] | 1012 | static struct gsm_trans *gsm411_trans_init(struct gsm_network *net, struct vlr_subscr *vsub, struct ran_conn *conn, |
| 1013 | uint8_t tid) |
| 1014 | { |
| 1015 | /* Allocate a new transaction */ |
| 1016 | struct gsm_trans *trans = trans_alloc(net, vsub, GSM48_PDISC_SMS, tid, new_callref++); |
| 1017 | if (!trans) { |
| 1018 | LOGP(DLSMS, LOGL_ERROR, "No memory for transaction\n"); |
| 1019 | return NULL; |
| 1020 | } |
| 1021 | |
| 1022 | /* Init both SMC and SMR state machines */ |
| 1023 | gsm411_smc_init(&trans->sms.smc_inst, 0, 1, gsm411_mn_recv, gsm411_mm_send); |
| 1024 | gsm411_smr_init(&trans->sms.smr_inst, 0, 1, gsm411_rl_recv, gsm411_mn_send); |
| 1025 | |
| 1026 | /* Associate transaction with connection */ |
| 1027 | if (conn) |
| 1028 | trans->conn = ran_conn_get(conn, RAN_CONN_USE_TRANS_SMS); |
| 1029 | |
| 1030 | return trans; |
| 1031 | } |
| 1032 | |
Vadim Yanitskiy | c7de62c | 2019-01-18 16:01:50 +0700 | [diff] [blame] | 1033 | /* Assigns an (unused) SM-RP-MR value to a given transaction */ |
| 1034 | static int gsm411_assign_sm_rp_mr(struct gsm_trans *trans) |
| 1035 | { |
| 1036 | uint8_t mr; |
| 1037 | |
| 1038 | /* After allocation a given transaction has zero-initialized |
| 1039 | * SM-RP-MR value, so trans_find_by_sm_rp_mr() may consider |
| 1040 | * 0x00 as used. This is why we "poison" this transaction |
| 1041 | * using the highest value. */ |
| 1042 | trans->sms.sm_rp_mr = 0xff; |
| 1043 | |
| 1044 | /* According to 8.2.3, MR is in the range 0 through 255 */ |
| 1045 | for (mr = 0x00; mr < 0xff; mr++) { |
| 1046 | if (trans_find_by_sm_rp_mr(trans->net, trans->vsub, mr)) |
| 1047 | continue; /* this MR is busy, find another one */ |
| 1048 | /* An unused value has been found, assign it */ |
| 1049 | trans->sms.sm_rp_mr = mr; |
| 1050 | return 0; |
| 1051 | } |
| 1052 | |
| 1053 | /* All possible values are busy */ |
| 1054 | return -EBUSY; |
| 1055 | } |
| 1056 | |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1057 | static struct gsm_trans *gsm411_alloc_mt_trans(struct gsm_network *net, |
| 1058 | struct vlr_subscr *vsub) |
| 1059 | { |
Neels Hofmeyr | c036b79 | 2018-11-29 22:37:51 +0100 | [diff] [blame] | 1060 | struct ran_conn *conn; |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1061 | struct gsm_trans *trans; |
| 1062 | int tid; |
| 1063 | |
| 1064 | LOGP(DLSMS, LOGL_INFO, "Going to send a MT SMS\n"); |
| 1065 | |
| 1066 | /* Generate a new transaction ID */ |
Max | 30fb97a | 2019-01-10 17:25:33 +0100 | [diff] [blame] | 1067 | tid = trans_assign_trans_id(net, vsub, GSM48_PDISC_SMS); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1068 | if (tid == -1) { |
| 1069 | LOGP(DLSMS, LOGL_ERROR, "No available transaction IDs\n"); |
| 1070 | return NULL; |
| 1071 | } |
| 1072 | |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1073 | /* Attempt to find an existing connection */ |
| 1074 | conn = connection_for_subscr(vsub); |
Max | 0e8dfad | 2019-01-16 12:05:30 +0100 | [diff] [blame] | 1075 | |
| 1076 | /* Allocate a new transaction */ |
| 1077 | trans = gsm411_trans_init(net, vsub, conn, tid); |
| 1078 | if (!trans) |
| 1079 | return NULL; |
| 1080 | |
Vadim Yanitskiy | c7de62c | 2019-01-18 16:01:50 +0700 | [diff] [blame] | 1081 | /* Assign a unique SM-RP Message Reference */ |
| 1082 | if (gsm411_assign_sm_rp_mr(trans) != 0) { |
| 1083 | LOGP(DLSMS, LOGL_ERROR, "Failed to assign SM-RP-MR\n"); |
| 1084 | trans_free(trans); |
| 1085 | return NULL; |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1086 | } |
| 1087 | |
Vadim Yanitskiy | 14e32a4 | 2018-11-30 19:10:37 +0700 | [diff] [blame] | 1088 | /* Use SAPI 3 (see GSM 04.11, section 2.3) */ |
| 1089 | trans->dlci = UM_SAPI_SMS; |
| 1090 | |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1091 | return trans; |
| 1092 | } |
| 1093 | |
| 1094 | /* High-level function to send an SMS to a given subscriber */ |
| 1095 | int gsm411_send_sms(struct gsm_network *net, |
| 1096 | struct vlr_subscr *vsub, |
| 1097 | struct gsm_sms *sms) |
| 1098 | { |
| 1099 | uint8_t *data, *rp_ud_len; |
| 1100 | struct gsm_trans *trans; |
| 1101 | struct msgb *msg; |
| 1102 | int rc; |
| 1103 | |
| 1104 | /* Allocate a new transaction for MT SMS */ |
| 1105 | trans = gsm411_alloc_mt_trans(net, vsub); |
| 1106 | if (!trans) { |
| 1107 | send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, 0); |
| 1108 | sms_free(sms); |
| 1109 | return -ENOMEM; |
| 1110 | } |
| 1111 | |
| 1112 | /* Allocate a message buffer for to be encoded SMS */ |
| 1113 | msg = gsm411_msgb_alloc(); |
| 1114 | if (!msg) { |
| 1115 | send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, 0); |
| 1116 | trans_free(trans); |
| 1117 | sms_free(sms); |
| 1118 | return -ENOMEM; |
| 1119 | } |
| 1120 | |
| 1121 | /* Hardcode SMSC Originating Address for now */ |
| 1122 | data = (uint8_t *)msgb_put(msg, 8); |
| 1123 | data[0] = 0x07; /* originator length == 7 */ |
| 1124 | data[1] = 0x91; /* type of number: international, ISDN */ |
| 1125 | data[2] = 0x44; /* 447785016005 */ |
| 1126 | data[3] = 0x77; |
| 1127 | data[4] = 0x58; |
| 1128 | data[5] = 0x10; |
| 1129 | data[6] = 0x06; |
| 1130 | data[7] = 0x50; |
| 1131 | |
| 1132 | /* Hardcoded Destination Address */ |
| 1133 | data = (uint8_t *)msgb_put(msg, 1); |
| 1134 | data[0] = 0; /* destination length == 0 */ |
| 1135 | |
| 1136 | /* obtain a pointer for the rp_ud_len, so we can fill it later */ |
| 1137 | rp_ud_len = (uint8_t *)msgb_put(msg, 1); |
| 1138 | |
| 1139 | if (sms->is_report) { |
| 1140 | /* generate the 03.40 SMS-STATUS-REPORT TPDU */ |
| 1141 | rc = gsm340_gen_sms_status_report_tpdu(msg, sms); |
| 1142 | } else { |
| 1143 | /* generate the 03.40 SMS-DELIVER TPDU */ |
| 1144 | rc = gsm340_gen_sms_deliver_tpdu(msg, sms); |
| 1145 | } |
| 1146 | if (rc < 0) { |
| 1147 | send_signal(S_SMS_UNKNOWN_ERROR, trans, sms, 0); |
| 1148 | sms_free(sms); |
| 1149 | trans_free(trans); |
| 1150 | msgb_free(msg); |
| 1151 | return rc; |
| 1152 | } |
| 1153 | |
| 1154 | *rp_ud_len = rc; |
| 1155 | |
| 1156 | /* Store a pointer to abstract SMS representation */ |
| 1157 | trans->sms.sms = sms; |
| 1158 | |
| 1159 | rate_ctr_inc(&net->msc_ctrs->ctr[MSC_CTR_SMS_DELIVERED]); |
| 1160 | db_sms_inc_deliver_attempts(trans->sms.sms); |
| 1161 | |
| 1162 | return gsm411_rp_sendmsg(&trans->sms.smr_inst, msg, |
| 1163 | GSM411_MT_RP_DATA_MT, trans->sms.sm_rp_mr, |
| 1164 | GSM411_SM_RL_DATA_REQ); |
| 1165 | } |
| 1166 | |
Vadim Yanitskiy | 82cc8a5 | 2018-11-15 01:05:53 +0700 | [diff] [blame] | 1167 | /* Low-level function to send raw RP-DATA to a given subscriber */ |
| 1168 | int gsm411_send_rp_data(struct gsm_network *net, struct vlr_subscr *vsub, |
| 1169 | size_t sm_rp_oa_len, const uint8_t *sm_rp_oa, |
| 1170 | size_t sm_rp_ud_len, const uint8_t *sm_rp_ud) |
| 1171 | { |
| 1172 | struct gsm_trans *trans; |
| 1173 | struct msgb *msg; |
| 1174 | |
| 1175 | /* Allocate a new transaction for MT SMS */ |
| 1176 | trans = gsm411_alloc_mt_trans(net, vsub); |
| 1177 | if (!trans) |
| 1178 | return -ENOMEM; |
| 1179 | |
| 1180 | /* Allocate a message buffer for to be encoded SMS */ |
| 1181 | msg = gsm411_msgb_alloc(); |
| 1182 | if (!msg) { |
| 1183 | trans_free(trans); |
| 1184 | return -ENOMEM; |
| 1185 | } |
| 1186 | |
| 1187 | /* Encode SM-RP-OA (SMSC address) */ |
| 1188 | msgb_lv_put(msg, sm_rp_oa_len, sm_rp_oa); |
| 1189 | |
| 1190 | /* Encode SM-RP-DA (shall be empty, len=0) */ |
| 1191 | msgb_v_put(msg, 0x00); |
| 1192 | |
| 1193 | /* Encode RP-UD itself (SM TPDU) */ |
| 1194 | msgb_lv_put(msg, sm_rp_ud_len, sm_rp_ud); |
| 1195 | |
| 1196 | rate_ctr_inc(&net->msc_ctrs->ctr[MSC_CTR_SMS_DELIVERED]); |
| 1197 | |
| 1198 | return gsm411_rp_sendmsg(&trans->sms.smr_inst, msg, |
| 1199 | GSM411_MT_RP_DATA_MT, trans->sms.sm_rp_mr, |
| 1200 | GSM411_SM_RL_DATA_REQ); |
| 1201 | } |
| 1202 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1203 | /* Entry point for incoming GSM48_PDISC_SMS from abis_rsl.c */ |
Neels Hofmeyr | c036b79 | 2018-11-29 22:37:51 +0100 | [diff] [blame] | 1204 | int gsm0411_rcv_sms(struct ran_conn *conn, |
Holger Hans Peter Freyther | 9764331 | 2010-06-17 16:41:25 +0800 | [diff] [blame] | 1205 | struct msgb *msg) |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 1206 | { |
| 1207 | struct gsm48_hdr *gh = msgb_l3(msg); |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 1208 | uint8_t msg_type = gh->msg_type; |
Neels Hofmeyr | 961bd0b | 2016-03-14 16:13:25 +0100 | [diff] [blame] | 1209 | uint8_t transaction_id = gsm48_hdr_trans_id_flip_ti(gh); |
Vadim Yanitskiy | cfd058d | 2019-01-23 23:34:31 +0700 | [diff] [blame] | 1210 | struct gsm411_rp_hdr *rph = (struct gsm411_rp_hdr *) gh->data; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1211 | struct gsm_trans *trans; |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1212 | int new_trans = 0; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 1213 | int rc = 0; |
| 1214 | |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 1215 | if (!conn->vsub) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1216 | return -EIO; |
| 1217 | /* FIXME: send some error message */ |
| 1218 | |
Neels Hofmeyr | 4585317 | 2017-07-18 01:52:16 +0200 | [diff] [blame] | 1219 | DEBUGP(DLSMS, "receiving data (trans_id=%x, msg_type=%s)\n", transaction_id, |
| 1220 | gsm48_pdisc_msgtype_name(gsm48_hdr_pdisc(gh), gsm48_hdr_msg_type(gh))); |
| 1221 | |
Jacob Erlbeck | dae1f64 | 2014-12-02 14:22:53 +0100 | [diff] [blame] | 1222 | trans = trans_find_by_id(conn, GSM48_PDISC_SMS, transaction_id); |
Holger Hans Peter Freyther | ba36bf4 | 2013-01-13 16:23:36 +0100 | [diff] [blame] | 1223 | |
| 1224 | /* |
| 1225 | * A transaction we created but don't know about? |
| 1226 | */ |
| 1227 | if (!trans && (transaction_id & 0x8) == 0) { |
| 1228 | LOGP(DLSMS, LOGL_ERROR, "trans_id=%x allocated by us but known " |
| 1229 | "to us anymore. We are ignoring it, maybe a CP-ERROR " |
| 1230 | "from a MS?\n", |
| 1231 | transaction_id); |
| 1232 | return -EINVAL; |
| 1233 | } |
| 1234 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1235 | if (!trans) { |
Max | 0e8dfad | 2019-01-16 12:05:30 +0100 | [diff] [blame] | 1236 | trans = gsm411_trans_init(conn->network, conn->vsub, conn, transaction_id); |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1237 | if (!trans) { |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1238 | /* FIXME: send some error message */ |
| 1239 | return -ENOMEM; |
| 1240 | } |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1241 | |
Vadim Yanitskiy | cfd058d | 2019-01-23 23:34:31 +0700 | [diff] [blame] | 1242 | trans->sms.sm_rp_mr = rph->msg_ref; /* SM-RP Message Reference */ |
Harald Welte | 0e2fa5d | 2018-04-09 16:35:01 +0200 | [diff] [blame] | 1243 | trans->dlci = OMSC_LINKID_CB(msg); /* DLCI as received from BSC */ |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1244 | |
| 1245 | new_trans = 1; |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 1246 | cm_service_request_concludes(conn, msg); |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1247 | } |
| 1248 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1249 | /* 5.4: For MO, if a CP-DATA is received for a new |
| 1250 | * transaction, equals reception of an implicit |
| 1251 | * last CP-ACK for previous transaction */ |
| 1252 | if (trans->sms.smc_inst.cp_state == GSM411_CPS_IDLE |
| 1253 | && msg_type == GSM411_MT_CP_DATA) { |
| 1254 | int i; |
| 1255 | struct gsm_trans *ptrans; |
Sylvain Munaut | 258e2f9 | 2009-12-24 16:47:08 +0100 | [diff] [blame] | 1256 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1257 | /* Scan through all remote initiated transactions */ |
| 1258 | for (i=8; i<15; i++) { |
| 1259 | if (i == transaction_id) |
| 1260 | continue; |
Sylvain Munaut | 258e2f9 | 2009-12-24 16:47:08 +0100 | [diff] [blame] | 1261 | |
Jacob Erlbeck | dae1f64 | 2014-12-02 14:22:53 +0100 | [diff] [blame] | 1262 | ptrans = trans_find_by_id(conn, GSM48_PDISC_SMS, i); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1263 | if (!ptrans) |
| 1264 | continue; |
Sylvain Munaut | 258e2f9 | 2009-12-24 16:47:08 +0100 | [diff] [blame] | 1265 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1266 | DEBUGP(DLSMS, "Implicit CP-ACK for trans_id=%x\n", i); |
Sylvain Munaut | 258e2f9 | 2009-12-24 16:47:08 +0100 | [diff] [blame] | 1267 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1268 | /* Finish it for good */ |
| 1269 | trans_free(ptrans); |
Sylvain Munaut | 258e2f9 | 2009-12-24 16:47:08 +0100 | [diff] [blame] | 1270 | } |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 1271 | } |
| 1272 | |
Neels Hofmeyr | c036b79 | 2018-11-29 22:37:51 +0100 | [diff] [blame] | 1273 | ran_conn_communicating(conn); |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 1274 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1275 | gsm411_smc_recv(&trans->sms.smc_inst, |
| 1276 | (new_trans) ? GSM411_MMSMS_EST_IND : GSM411_MMSMS_DATA_IND, |
| 1277 | msg, msg_type); |
| 1278 | |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 1279 | return rc; |
| 1280 | } |
| 1281 | |
Harald Welte (local) | 86b1717 | 2009-08-14 14:52:17 +0200 | [diff] [blame] | 1282 | void _gsm411_sms_trans_free(struct gsm_trans *trans) |
| 1283 | { |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1284 | /* cleanup SMS instance */ |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 1285 | gsm411_smr_clear(&trans->sms.smr_inst); |
| 1286 | trans->sms.smr_inst.rl_recv = NULL; |
| 1287 | trans->sms.smr_inst.mn_send = NULL; |
| 1288 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1289 | gsm411_smc_clear(&trans->sms.smc_inst); |
| 1290 | trans->sms.smc_inst.mn_recv = NULL; |
| 1291 | trans->sms.smc_inst.mm_send = NULL; |
| 1292 | |
Holger Hans Peter Freyther | cea722b | 2010-06-15 12:29:37 +0800 | [diff] [blame] | 1293 | if (trans->sms.sms) { |
Holger Hans Peter Freyther | eff40949 | 2012-11-10 19:46:58 +0100 | [diff] [blame] | 1294 | LOGP(DLSMS, LOGL_ERROR, "Transaction contains SMS.\n"); |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 1295 | send_signal(S_SMS_UNKNOWN_ERROR, trans, trans->sms.sms, 0); |
Holger Hans Peter Freyther | cea722b | 2010-06-15 12:29:37 +0800 | [diff] [blame] | 1296 | sms_free(trans->sms.sms); |
| 1297 | trans->sms.sms = NULL; |
| 1298 | } |
Harald Welte (local) | 86b1717 | 2009-08-14 14:52:17 +0200 | [diff] [blame] | 1299 | } |
| 1300 | |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 1301 | /* Process incoming SAPI N-REJECT from BSC */ |
Neels Hofmeyr | c036b79 | 2018-11-29 22:37:51 +0100 | [diff] [blame] | 1302 | void gsm411_sapi_n_reject(struct ran_conn *conn) |
Holger Hans Peter Freyther | 6a3d765 | 2010-06-15 12:03:10 +0800 | [diff] [blame] | 1303 | { |
Holger Hans Peter Freyther | 79eff7e | 2010-12-27 23:25:53 +0100 | [diff] [blame] | 1304 | struct gsm_network *net; |
Holger Hans Peter Freyther | 6a3d765 | 2010-06-15 12:03:10 +0800 | [diff] [blame] | 1305 | struct gsm_trans *trans, *tmp; |
| 1306 | |
Neels Hofmeyr | a9f2bb5 | 2016-05-09 21:09:47 +0200 | [diff] [blame] | 1307 | net = conn->network; |
Holger Hans Peter Freyther | 79eff7e | 2010-12-27 23:25:53 +0100 | [diff] [blame] | 1308 | |
Holger Hans Peter Freyther | f76ed2d | 2013-12-27 22:47:09 +0100 | [diff] [blame] | 1309 | llist_for_each_entry_safe(trans, tmp, &net->trans_list, entry) { |
| 1310 | struct gsm_sms *sms; |
Holger Hans Peter Freyther | 6a3d765 | 2010-06-15 12:03:10 +0800 | [diff] [blame] | 1311 | |
Holger Hans Peter Freyther | f76ed2d | 2013-12-27 22:47:09 +0100 | [diff] [blame] | 1312 | if (trans->conn != conn) |
| 1313 | continue; |
| 1314 | if (trans->protocol != GSM48_PDISC_SMS) |
| 1315 | continue; |
| 1316 | |
| 1317 | sms = trans->sms.sms; |
| 1318 | if (!sms) { |
| 1319 | LOGP(DLSMS, LOGL_ERROR, "SAPI Reject but no SMS.\n"); |
| 1320 | continue; |
Holger Hans Peter Freyther | 6a3d765 | 2010-06-15 12:03:10 +0800 | [diff] [blame] | 1321 | } |
Holger Hans Peter Freyther | f76ed2d | 2013-12-27 22:47:09 +0100 | [diff] [blame] | 1322 | |
| 1323 | send_signal(S_SMS_UNKNOWN_ERROR, trans, sms, 0); |
| 1324 | sms_free(sms); |
| 1325 | trans->sms.sms = NULL; |
| 1326 | trans_free(trans); |
| 1327 | } |
Holger Hans Peter Freyther | 6a3d765 | 2010-06-15 12:03:10 +0800 | [diff] [blame] | 1328 | } |
| 1329 | |