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 | |
Neels Hofmeyr | 4ac8009 | 2019-03-04 02:46:37 +0100 | [diff] [blame] | 36 | #include "config.h" |
Harald Welte | 9c3dc90 | 2012-04-08 16:59:24 +0200 | [diff] [blame] | 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> |
Vadim Yanitskiy | 4eca09f | 2019-04-16 15:18:33 +0700 | [diff] [blame] | 45 | #include <osmocom/gsm/protocol/gsm_03_40.h> |
Holger Hans Peter Freyther | 7517212 | 2012-11-10 18:11:22 +0100 | [diff] [blame] | 46 | |
Neels Hofmeyr | 9084396 | 2017-09-04 15:04:35 +0200 | [diff] [blame] | 47 | #include <osmocom/msc/debug.h> |
| 48 | #include <osmocom/msc/gsm_data.h> |
| 49 | #include <osmocom/msc/db.h> |
| 50 | #include <osmocom/msc/gsm_subscriber.h> |
| 51 | #include <osmocom/msc/gsm_04_08.h> |
Neels Hofmeyr | 9084396 | 2017-09-04 15:04:35 +0200 | [diff] [blame] | 52 | #include <osmocom/msc/signal.h> |
| 53 | #include <osmocom/msc/db.h> |
| 54 | #include <osmocom/msc/transaction.h> |
Neels Hofmeyr | 9084396 | 2017-09-04 15:04:35 +0200 | [diff] [blame] | 55 | #include <osmocom/msc/vlr.h> |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 56 | #include <osmocom/msc/msub.h> |
| 57 | #include <osmocom/msc/msc_a.h> |
| 58 | #include <osmocom/msc/paging.h> |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 59 | |
Harald Welte | e07b6a7 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 60 | #ifdef BUILD_SMPP |
Max | 5346f69 | 2022-07-28 14:19:22 +0700 | [diff] [blame] | 61 | #include <osmocom/smpp/smpp_smsc.h> |
Harald Welte | e07b6a7 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 62 | #endif |
| 63 | |
Harald Welte (local) | d19e58b | 2009-08-15 02:30:58 +0200 | [diff] [blame] | 64 | void *tall_gsms_ctx; |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 65 | static uint32_t new_callref = 0x40000001; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 66 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 67 | struct gsm_sms *sms_alloc(void) |
| 68 | { |
| 69 | return talloc_zero(tall_gsms_ctx, struct gsm_sms); |
| 70 | } |
| 71 | |
| 72 | void sms_free(struct gsm_sms *sms) |
| 73 | { |
| 74 | /* drop references to subscriber structure */ |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 75 | if (sms->receiver) |
Neels Hofmeyr | 7c5346c | 2019-02-19 02:36:35 +0100 | [diff] [blame] | 76 | vlr_subscr_put(sms->receiver, VSUB_USE_SMS_RECEIVER); |
Harald Welte | 6c7680d | 2012-11-16 22:15:22 +0100 | [diff] [blame] | 77 | #ifdef BUILD_SMPP |
Harald Welte | e94db49 | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 78 | if (sms->smpp.esme) |
| 79 | smpp_esme_put(sms->smpp.esme); |
Harald Welte | 6c7680d | 2012-11-16 22:15:22 +0100 | [diff] [blame] | 80 | #endif |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 81 | |
| 82 | talloc_free(sms); |
| 83 | } |
| 84 | |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 85 | struct gsm_sms *sms_from_text(struct vlr_subscr *receiver, |
Harald Welte | 39b5548 | 2018-04-09 19:19:33 +0200 | [diff] [blame] | 86 | const char *sender_msisdn, |
Sylvain Munaut | 01c13a3 | 2012-12-28 00:49:01 +0100 | [diff] [blame] | 87 | int dcs, const char *text) |
Holger Hans Peter Freyther | c464491 | 2011-01-10 15:21:34 +0100 | [diff] [blame] | 88 | { |
| 89 | struct gsm_sms *sms = sms_alloc(); |
| 90 | |
| 91 | if (!sms) |
| 92 | return NULL; |
| 93 | |
Neels Hofmeyr | 7c5346c | 2019-02-19 02:36:35 +0100 | [diff] [blame] | 94 | vlr_subscr_get(receiver, VSUB_USE_SMS_RECEIVER); |
| 95 | sms->receiver = receiver; |
Max | 98f7467 | 2018-02-05 12:57:06 +0100 | [diff] [blame] | 96 | OSMO_STRLCPY_ARRAY(sms->text, text); |
Holger Hans Peter Freyther | c464491 | 2011-01-10 15:21:34 +0100 | [diff] [blame] | 97 | |
Harald Welte | 39b5548 | 2018-04-09 19:19:33 +0200 | [diff] [blame] | 98 | OSMO_STRLCPY_ARRAY(sms->src.addr, sender_msisdn); |
Holger Hans Peter Freyther | c464491 | 2011-01-10 15:21:34 +0100 | [diff] [blame] | 99 | sms->reply_path_req = 0; |
| 100 | sms->status_rep_req = 0; |
| 101 | sms->ud_hdr_ind = 0; |
| 102 | sms->protocol_id = 0; /* implicit */ |
Holger Hans Peter Freyther | cdfcbee | 2011-01-10 15:34:09 +0100 | [diff] [blame] | 103 | sms->data_coding_scheme = dcs; |
Max | 98f7467 | 2018-02-05 12:57:06 +0100 | [diff] [blame] | 104 | OSMO_STRLCPY_ARRAY(sms->dst.addr, receiver->msisdn); |
Holger Hans Peter Freyther | c464491 | 2011-01-10 15:21:34 +0100 | [diff] [blame] | 105 | /* Generate user_data */ |
Holger Hans Peter Freyther | 91acfa0 | 2013-12-26 22:33:02 +0100 | [diff] [blame] | 106 | sms->user_data_len = gsm_7bit_encode_n(sms->user_data, sizeof(sms->user_data), |
| 107 | sms->text, NULL); |
Holger Hans Peter Freyther | c464491 | 2011-01-10 15:21:34 +0100 | [diff] [blame] | 108 | |
| 109 | return sms; |
| 110 | } |
| 111 | |
| 112 | |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 113 | static void send_signal(int sig_no, |
| 114 | struct gsm_trans *trans, |
| 115 | struct gsm_sms *sms, |
| 116 | int paging_result) |
| 117 | { |
| 118 | struct sms_signal_data sig; |
| 119 | sig.trans = trans; |
| 120 | sig.sms = sms; |
| 121 | sig.paging_result = paging_result; |
Pablo Neira Ayuso | bbc5b99 | 2011-05-06 12:12:31 +0200 | [diff] [blame] | 122 | osmo_signal_dispatch(SS_SMS, sig_no, &sig); |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 123 | } |
| 124 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 125 | static int gsm411_sendmsg(struct gsm_trans *trans, struct msgb *msg) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 126 | { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 127 | LOG_TRANS(trans, LOGL_DEBUG, "GSM4.11 TX %s\n", msgb_hexdump(msg)); |
Holger Hans Peter Freyther | ec32b58 | 2010-03-23 07:40:46 +0100 | [diff] [blame] | 128 | msg->l3h = msg->data; |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 129 | return msc_a_tx_dtap_to_i(trans->msc_a, msg); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 130 | } |
| 131 | |
Vadim Yanitskiy | 643270f | 2019-05-12 05:38:41 +0700 | [diff] [blame] | 132 | /* Handle MMTS (More Messages to Send) indication */ |
| 133 | static void gsm411_handle_mmts_ind(const struct gsm_trans *trans) |
| 134 | { |
| 135 | int32_t use_count; |
| 136 | |
| 137 | OSMO_ASSERT(trans); |
| 138 | OSMO_ASSERT(trans->msc_a); |
| 139 | |
| 140 | use_count = osmo_use_count_by(&trans->msc_a->use_count, MSC_A_USE_SMS_MMTS); |
| 141 | OSMO_ASSERT(use_count >= 0); /* Shall not be negative */ |
| 142 | |
| 143 | if (trans->sms.sm_rp_mmts_ind && use_count == 0) { |
| 144 | LOG_TRANS(trans, LOGL_INFO, "Multi-part SMS delivery is initiated\n"); |
| 145 | msc_a_get(trans->msc_a, MSC_A_USE_SMS_MMTS); |
| 146 | } else if (trans->sms.sm_rp_mmts_ind && use_count > 0) { |
| 147 | LOG_TRANS(trans, LOGL_INFO, "Continuing multi-part SMS delivery\n"); |
| 148 | } else if (!trans->sms.sm_rp_mmts_ind && use_count > 0) { |
| 149 | LOG_TRANS(trans, LOGL_INFO, "Multi-part SMS delivery has been completed\n"); |
| 150 | msc_a_put(trans->msc_a, MSC_A_USE_SMS_MMTS); |
| 151 | } |
| 152 | } |
| 153 | |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 154 | /* Paging callback for MT SMS (Paging is triggered by SMC) */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 155 | static void mmsms_paging_cb(struct msc_a *msc_a, struct gsm_trans *trans) |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 156 | { |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 157 | struct gsm_sms *sms = trans->sms.sms; |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 158 | |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 159 | LOG_TRANS(trans, LOGL_DEBUG, "%s(%s)\n", __func__, msc_a ? "success" : "expired"); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 160 | |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 161 | if (msc_a) { |
| 162 | /* Paging succeeded */ |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 163 | /* Associate transaction with established connection */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 164 | msc_a_get(msc_a, MSC_A_USE_SMS); |
| 165 | trans->msc_a = msc_a; |
Vadim Yanitskiy | 643270f | 2019-05-12 05:38:41 +0700 | [diff] [blame] | 166 | |
| 167 | /* Multi-part SMS: handle MMTS (More Messages to Send) indication */ |
| 168 | gsm411_handle_mmts_ind(trans); |
| 169 | |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 170 | /* Confirm successful connection establishment */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 171 | gsm411_smc_recv(&trans->sms.smc_inst, GSM411_MMSMS_EST_CNF, NULL, 0); |
| 172 | } else { |
| 173 | /* Paging expired or failed */ |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 174 | /* Inform SMC about channel establishment failure */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 175 | gsm411_smc_recv(&trans->sms.smc_inst, GSM411_MMSMS_REL_IND, NULL, 0); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 176 | |
Vadim Yanitskiy | 82cc8a5 | 2018-11-15 01:05:53 +0700 | [diff] [blame] | 177 | /* gsm411_send_rp_data() doesn't set trans->sms.sms */ |
| 178 | if (sms != NULL) { |
| 179 | /* Notify the SMSqueue and free stored SMS */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 180 | send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, 0); |
Vadim Yanitskiy | 82cc8a5 | 2018-11-15 01:05:53 +0700 | [diff] [blame] | 181 | trans->sms.sms = NULL; |
| 182 | sms_free(sms); |
| 183 | } |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 184 | |
| 185 | /* Destroy this transaction */ |
| 186 | trans_free(trans); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 187 | } |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | static int gsm411_mmsms_est_req(struct gsm_trans *trans) |
| 191 | { |
| 192 | /* Subscriber's data shall be associated */ |
| 193 | OSMO_ASSERT(trans->vsub != NULL); |
| 194 | |
| 195 | /* Check if connection is already established */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 196 | if (trans->msc_a != NULL) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 197 | LOG_TRANS(trans, LOGL_DEBUG, "Using an existing connection\n"); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 198 | return gsm411_smc_recv(&trans->sms.smc_inst, |
| 199 | GSM411_MMSMS_EST_CNF, NULL, 0); |
| 200 | } |
| 201 | |
| 202 | /* Initiate Paging procedure */ |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 203 | LOG_TRANS(trans, LOGL_DEBUG, "Initiating Paging due to MMSMS_EST_REQ\n"); |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 204 | trans->paging_request = paging_request_start(trans->vsub, PAGING_CAUSE_SIGNALLING_LOW_PRIO, |
| 205 | mmsms_paging_cb, trans, "MT-SMS"); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 206 | if (!trans->paging_request) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 207 | LOG_TRANS(trans, LOGL_ERROR, "Failed to initiate Paging\n"); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 208 | /* Inform SMC about channel establishment failure */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 209 | gsm411_smc_recv(&trans->sms.smc_inst, GSM411_MMSMS_REL_IND, NULL, 0); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 210 | trans_free(trans); |
| 211 | return -EIO; |
| 212 | } |
| 213 | |
| 214 | return 0; |
| 215 | } |
| 216 | |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 217 | /* Prefix msg with a 04.08/04.11 CP header */ |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 218 | 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] | 219 | uint8_t msg_type) |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 220 | { |
| 221 | struct gsm48_hdr *gh; |
| 222 | |
| 223 | gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh)); |
| 224 | /* Outgoing needs the highest bit set */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 225 | gh->proto_discr = GSM48_PDISC_SMS | (trans->transaction_id<<4); |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 226 | gh->msg_type = msg_type; |
Harald Welte | 0e2fa5d | 2018-04-09 16:35:01 +0200 | [diff] [blame] | 227 | OMSC_LINKID_CB(msg) = trans->dlci; |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 228 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 229 | LOG_TRANS(trans, LOGL_DEBUG, "sending CP message (trans=%x)\n", trans->transaction_id); |
Harald Welte (local) | c89a511 | 2009-08-14 10:42:43 +0200 | [diff] [blame] | 230 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 231 | return gsm411_sendmsg(trans, msg); |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 232 | } |
| 233 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 234 | /* mm_send: receive MMCCSMS sap message from SMC */ |
| 235 | static int gsm411_mm_send(struct gsm411_smc_inst *inst, int msg_type, |
| 236 | struct msgb *msg, int cp_msg_type) |
| 237 | { |
| 238 | struct gsm_trans *trans = |
| 239 | container_of(inst, struct gsm_trans, sms.smc_inst); |
| 240 | int rc = 0; |
| 241 | |
| 242 | switch (msg_type) { |
| 243 | case GSM411_MMSMS_EST_REQ: |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 244 | rc = gsm411_mmsms_est_req(trans); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 245 | break; |
| 246 | case GSM411_MMSMS_DATA_REQ: |
| 247 | rc = gsm411_cp_sendmsg(msg, trans, cp_msg_type); |
Vadim Yanitskiy | 6a689b2 | 2019-05-12 03:23:00 +0700 | [diff] [blame] | 248 | return rc; /* gsm411_cp_sendmsg() takes msg ownership */ |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 249 | case GSM411_MMSMS_REL_REQ: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 250 | LOG_TRANS(trans, LOGL_DEBUG, "Got MMSMS_REL_REQ, destroying transaction.\n"); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 251 | trans_free(trans); |
| 252 | break; |
| 253 | default: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 254 | LOG_TRANS(trans, LOGL_NOTICE, "Unhandled MMCCSMS msg 0x%x\n", msg_type); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 255 | rc = -EINVAL; |
| 256 | } |
| 257 | |
Vadim Yanitskiy | 6a689b2 | 2019-05-12 03:23:00 +0700 | [diff] [blame] | 258 | msgb_free(msg); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 259 | return rc; |
| 260 | } |
| 261 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 262 | /* mm_send: receive MNCCSMS sap message from SMR */ |
| 263 | int gsm411_mn_send(struct gsm411_smr_inst *inst, int msg_type, |
| 264 | struct msgb *msg) |
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 | struct gsm_trans *trans = |
| 267 | container_of(inst, struct gsm_trans, sms.smr_inst); |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 268 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 269 | /* forward to SMC */ |
| 270 | return gsm411_smc_send(&trans->sms.smc_inst, msg_type, msg); |
Harald Welte | 87f5d63 | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 271 | } |
| 272 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 273 | static int gsm340_rx_sms_submit(struct gsm_trans *trans, struct gsm_sms *gsms) |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 274 | { |
| 275 | if (db_sms_store(gsms) != 0) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 276 | LOG_TRANS(trans, LOGL_ERROR, "Failed to store SMS in Database\n"); |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 277 | return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 278 | } |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 279 | /* dispatch a signal to tell higher level about it */ |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 280 | send_signal(S_SMS_SUBMITTED, NULL, gsms, 0); |
Harald Welte (local) | ee4410a | 2009-08-17 09:39:55 +0200 | [diff] [blame] | 281 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 282 | return 0; |
| 283 | } |
| 284 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 285 | /* 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] | 286 | 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] | 287 | const struct gsm_sms_addr *src) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 288 | { |
Holger Hans Peter Freyther | 366c331 | 2012-11-10 18:24:54 +0100 | [diff] [blame] | 289 | /* network specific, private numbering plan */ |
Harald Welte | c0de14d | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 290 | 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] | 291 | } |
| 292 | |
Alexander Chemeris | 9e15e18 | 2014-03-08 23:54:28 +0100 | [diff] [blame] | 293 | /* generate a msgb containing an 03.40 9.2.2.1 SMS-DELIVER TPDU derived from |
| 294 | * struct gsm_sms, returns total size of TPDU */ |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 295 | static int gsm340_gen_sms_deliver_tpdu(struct gsm_trans *trans, struct msgb *msg, struct gsm_sms *sms) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 296 | { |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 297 | uint8_t *smsp; |
| 298 | uint8_t oa[12]; /* max len per 03.40 */ |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 299 | uint8_t octet_len; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 300 | unsigned int old_msg_len = msg->len; |
Pablo Neira Ayuso | 4b50924 | 2017-08-10 09:38:58 +0200 | [diff] [blame] | 301 | int oa_len; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 302 | |
| 303 | /* generate first octet with masked bits */ |
| 304 | smsp = msgb_put(msg, 1); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 305 | /* TP-MTI (message type indicator) */ |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 306 | *smsp = GSM340_SMS_DELIVER_SC2MS; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 307 | /* TP-MMS (more messages to send) */ |
| 308 | if (0 /* FIXME */) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 309 | *smsp |= 0x04; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 310 | /* TP-SRI(deliver)/SRR(submit) */ |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 311 | if (sms->status_rep_req) |
| 312 | *smsp |= 0x20; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 313 | /* TP-UDHI (indicating TP-UD contains a header) */ |
| 314 | if (sms->ud_hdr_ind) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 315 | *smsp |= 0x40; |
Harald Welte | c0de14d | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 316 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 317 | /* generate originator address */ |
Harald Welte | c0de14d | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 318 | oa_len = gsm340_gen_oa_sub(oa, sizeof(oa), &sms->src); |
Pablo Neira Ayuso | 4b50924 | 2017-08-10 09:38:58 +0200 | [diff] [blame] | 319 | if (oa_len < 0) |
| 320 | return -ENOSPC; |
| 321 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 322 | smsp = msgb_put(msg, oa_len); |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 323 | memcpy(smsp, oa, oa_len); |
| 324 | |
| 325 | /* generate TP-PID */ |
| 326 | smsp = msgb_put(msg, 1); |
| 327 | *smsp = sms->protocol_id; |
| 328 | |
| 329 | /* generate TP-DCS */ |
| 330 | smsp = msgb_put(msg, 1); |
| 331 | *smsp = sms->data_coding_scheme; |
| 332 | |
| 333 | /* generate TP-SCTS */ |
| 334 | smsp = msgb_put(msg, 7); |
| 335 | gsm340_gen_scts(smsp, time(NULL)); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 336 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 337 | /* generate TP-UDL */ |
| 338 | smsp = msgb_put(msg, 1); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 339 | *smsp = sms->user_data_len; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 340 | |
| 341 | /* generate TP-UD */ |
Daniel Willmann | 6b024cb | 2009-08-15 03:01:46 +0200 | [diff] [blame] | 342 | switch (gsm338_get_sms_alphabet(sms->data_coding_scheme)) { |
| 343 | case DCS_7BIT_DEFAULT: |
Daniel Willmann | 9aef145 | 2009-08-13 03:39:07 +0200 | [diff] [blame] | 344 | octet_len = sms->user_data_len*7/8; |
| 345 | if (sms->user_data_len*7%8 != 0) |
| 346 | octet_len++; |
Daniel Willmann | 6b1e822 | 2009-08-12 21:17:06 +0200 | [diff] [blame] | 347 | /* Warning, user_data_len indicates the amount of septets |
| 348 | * (characters), we need amount of octets occupied */ |
Daniel Willmann | 9aef145 | 2009-08-13 03:39:07 +0200 | [diff] [blame] | 349 | smsp = msgb_put(msg, octet_len); |
| 350 | memcpy(smsp, sms->user_data, octet_len); |
Daniel Willmann | 6b024cb | 2009-08-15 03:01:46 +0200 | [diff] [blame] | 351 | break; |
| 352 | case DCS_UCS2: |
| 353 | case DCS_8BIT_DATA: |
| 354 | smsp = msgb_put(msg, sms->user_data_len); |
| 355 | memcpy(smsp, sms->user_data, sms->user_data_len); |
| 356 | break; |
| 357 | default: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 358 | LOG_TRANS(trans, LOGL_NOTICE, "Unhandled Data Coding Scheme: 0x%02X\n", |
| 359 | sms->data_coding_scheme); |
Daniel Willmann | 6b024cb | 2009-08-15 03:01:46 +0200 | [diff] [blame] | 360 | break; |
Daniel Willmann | 6b1e822 | 2009-08-12 21:17:06 +0200 | [diff] [blame] | 361 | } |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 362 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 363 | return msg->len - old_msg_len; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 364 | } |
| 365 | |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 366 | /* As defined by GSM 03.40, Section 9.2.2.3. */ |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 367 | static int gsm340_gen_sms_status_report_tpdu(struct gsm_trans *trans, struct msgb *msg, |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 368 | struct gsm_sms *sms) |
| 369 | { |
| 370 | unsigned int old_msg_len = msg->len; |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 371 | uint8_t oa[12]; /* max len per 03.40 */ |
| 372 | uint8_t *smsp; |
Pablo Neira Ayuso | 4b50924 | 2017-08-10 09:38:58 +0200 | [diff] [blame] | 373 | int oa_len; |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 374 | |
| 375 | /* generate first octet with masked bits */ |
| 376 | smsp = msgb_put(msg, 1); |
| 377 | /* TP-MTI (message type indicator) */ |
| 378 | *smsp = GSM340_SMS_STATUS_REP_SC2MS; |
| 379 | /* TP-MMS (more messages to send) */ |
| 380 | if (0 /* FIXME */) |
| 381 | *smsp |= 0x04; |
| 382 | /* TP-MR (message reference) */ |
| 383 | smsp = msgb_put(msg, 1); |
| 384 | *smsp = sms->msg_ref; |
Pablo Neira Ayuso | 4b50924 | 2017-08-10 09:38:58 +0200 | [diff] [blame] | 385 | |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 386 | /* generate recipient address */ |
Keith | ab9d863 | 2017-08-14 15:06:33 +0200 | [diff] [blame] | 387 | oa_len = gsm340_gen_oa_sub(oa, sizeof(oa), &sms->src); |
Pablo Neira Ayuso | 4b50924 | 2017-08-10 09:38:58 +0200 | [diff] [blame] | 388 | if (oa_len < 0) |
| 389 | return -ENOSPC; |
| 390 | |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 391 | smsp = msgb_put(msg, oa_len); |
| 392 | memcpy(smsp, oa, oa_len); |
| 393 | |
| 394 | /* generate TP-SCTS (Service centre timestamp) */ |
| 395 | smsp = msgb_put(msg, 7); |
Keith | c601adc | 2017-08-16 22:45:07 +0200 | [diff] [blame] | 396 | gsm340_gen_scts(smsp, sms->created); |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 397 | |
| 398 | /* generate TP-DT (Discharge time, in TP-SCTS format). */ |
| 399 | smsp = msgb_put(msg, 7); |
Keith | c601adc | 2017-08-16 22:45:07 +0200 | [diff] [blame] | 400 | gsm340_gen_scts(smsp, sms->created); |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 401 | |
| 402 | /* TP-ST (status) */ |
| 403 | smsp = msgb_put(msg, 1); |
| 404 | /* From GSM 03.40, Section 9.2.3.15, 0x00 means OK. */ |
| 405 | *smsp = 0x00; |
| 406 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 407 | LOG_TRANS(trans, LOGL_INFO, "sending status report for SMS reference %x\n", |
| 408 | sms->msg_ref); |
Pablo Neira Ayuso | bd71d32 | 2017-08-07 14:01:40 +0100 | [diff] [blame] | 409 | |
| 410 | return msg->len - old_msg_len; |
| 411 | } |
| 412 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 413 | static int sms_route_mt_sms(struct gsm_trans *trans, struct gsm_sms *gsms) |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 414 | { |
| 415 | int rc; |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 416 | struct msc_a *msc_a = trans->msc_a; |
| 417 | struct gsm_network *net = msc_a_net(msc_a); |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 418 | |
Holger Hans Peter Freyther | 42cf2e0 | 2015-07-06 16:41:30 +0200 | [diff] [blame] | 419 | #ifdef BUILD_SMPP |
| 420 | /* |
| 421 | * Route through SMPP first before going to the local database. In case |
| 422 | * of a unroutable message and no local subscriber, SMPP will be tried |
| 423 | * twice. In case of an unknown subscriber continue with the normal |
| 424 | * delivery of the SMS. |
| 425 | */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 426 | if (smpp_route_smpp_first()) { |
| 427 | rc = smpp_try_deliver(gsms, msc_a); |
Pablo Neira Ayuso | 638ad06 | 2017-05-03 18:59:05 +0200 | [diff] [blame] | 428 | if (rc == GSM411_RP_CAUSE_MO_NUM_UNASSIGNED) |
Benoit Bolsee | d34ed57 | 2017-07-05 11:46:55 +0200 | [diff] [blame] | 429 | /* unknown subscriber, try local */ |
Holger Hans Peter Freyther | 42cf2e0 | 2015-07-06 16:41:30 +0200 | [diff] [blame] | 430 | goto try_local; |
| 431 | if (rc < 0) { |
Neels Hofmeyr | 5b1e030 | 2019-05-06 23:45:09 +0200 | [diff] [blame] | 432 | LOG_TRANS(trans, LOGL_ERROR, "SMS delivery error: %d\n", rc); |
Alexander Couzens | aa386d2 | 2016-08-21 20:16:33 +0200 | [diff] [blame] | 433 | rc = GSM411_RP_CAUSE_MO_TEMP_FAIL; |
| 434 | /* rc will be logged by gsm411_send_rp_error() */ |
Pau Espin Pedrol | 2e21a68 | 2021-06-04 16:45:44 +0200 | [diff] [blame] | 435 | rate_ctr_inc(rate_ctr_group_get_ctr(net->msc_ctrs, 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 */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 444 | gsms->receiver = vlr_subscr_find_by_msisdn(net->vlr, gsms->dst.addr, VSUB_USE_SMS_RECEIVER); |
Keith Whyte | 2cad562 | 2020-01-13 06:30:27 +0100 | [diff] [blame] | 445 | if (gsms->receiver) |
| 446 | return 0; |
Holger Hans Peter Freyther | 7c19c6b | 2015-07-13 10:39:51 +0200 | [diff] [blame] | 447 | |
Keith Whyte | 2cad562 | 2020-01-13 06:30:27 +0100 | [diff] [blame] | 448 | #ifdef BUILD_SMPP |
| 449 | /* Avoid a second look-up */ |
| 450 | if (smpp_route_smpp_first()) { |
Pau Espin Pedrol | 2e21a68 | 2021-06-04 16:45:44 +0200 | [diff] [blame] | 451 | rate_ctr_inc(rate_ctr_group_get_ctr(net->msc_ctrs, MSC_CTR_SMS_NO_RECEIVER)); |
Keith Whyte | 2cad562 | 2020-01-13 06:30:27 +0100 | [diff] [blame] | 452 | return GSM411_RP_CAUSE_MO_NUM_UNASSIGNED; |
| 453 | } |
| 454 | |
| 455 | rc = smpp_try_deliver(gsms, msc_a); |
| 456 | if (rc == GSM411_RP_CAUSE_MO_NUM_UNASSIGNED) { |
Pau Espin Pedrol | 2e21a68 | 2021-06-04 16:45:44 +0200 | [diff] [blame] | 457 | rate_ctr_inc(rate_ctr_group_get_ctr(net->msc_ctrs, MSC_CTR_SMS_NO_RECEIVER)); |
Keith Whyte | 2cad562 | 2020-01-13 06:30:27 +0100 | [diff] [blame] | 458 | } else if (rc < 0) { |
| 459 | LOG_TRANS(trans, LOGL_ERROR, "SMS delivery error: %d\n", rc); |
| 460 | rc = GSM411_RP_CAUSE_MO_TEMP_FAIL; |
| 461 | /* rc will be logged by gsm411_send_rp_error() */ |
Pau Espin Pedrol | 2e21a68 | 2021-06-04 16:45:44 +0200 | [diff] [blame] | 462 | rate_ctr_inc(rate_ctr_group_get_ctr(net->msc_ctrs, MSC_CTR_SMS_DELIVER_UNKNOWN_ERROR)); |
Keith Whyte | 2cad562 | 2020-01-13 06:30:27 +0100 | [diff] [blame] | 463 | } |
| 464 | #else |
| 465 | rc = GSM411_RP_CAUSE_MO_NUM_UNASSIGNED; |
Pau Espin Pedrol | 2e21a68 | 2021-06-04 16:45:44 +0200 | [diff] [blame] | 466 | rate_ctr_inc(rate_ctr_group_get_ctr(net->msc_ctrs, MSC_CTR_SMS_NO_RECEIVER)); |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 467 | #endif |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 468 | |
Holger Hans Peter Freyther | af1b968 | 2015-07-06 15:54:25 +0200 | [diff] [blame] | 469 | return rc; |
| 470 | } |
| 471 | |
| 472 | |
Holger Hans Peter Freyther | acf8a0c | 2010-03-29 08:47:44 +0200 | [diff] [blame] | 473 | /* process an incoming TPDU (called from RP-DATA) |
| 474 | * 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] | 475 | 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] | 476 | uint32_t gsm411_msg_ref) |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 477 | { |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 478 | uint8_t *smsp = msgb_sms(msg); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 479 | struct gsm_sms *gsms; |
Harald Welte | 258c713 | 2011-07-16 13:34:52 +0200 | [diff] [blame] | 480 | unsigned int sms_alphabet; |
Neels Hofmeyr | 58d5430 | 2016-02-24 19:30:52 +0100 | [diff] [blame] | 481 | uint8_t sms_mti, sms_vpf; |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 482 | uint8_t *sms_vp; |
| 483 | uint8_t da_len_bytes; |
| 484 | 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] | 485 | int rc = 0; |
Vadim Yanitskiy | 36c8153 | 2019-05-11 03:35:45 +0700 | [diff] [blame] | 486 | struct gsm_network *net; |
| 487 | struct vlr_subscr *vsub; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 488 | |
Vadim Yanitskiy | 36c8153 | 2019-05-11 03:35:45 +0700 | [diff] [blame] | 489 | if (!trans->msc_a) { |
| 490 | LOG_TRANS(trans, LOGL_ERROR, "Insufficient info to process TPDU: " |
| 491 | "MSC-A role is NULL?!?\n"); |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 492 | return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
Vadim Yanitskiy | 36c8153 | 2019-05-11 03:35:45 +0700 | [diff] [blame] | 493 | } |
| 494 | |
| 495 | net = msc_a_net(trans->msc_a); |
| 496 | vsub = msc_a_vsub(trans->msc_a); |
| 497 | if (!net || !vsub) { |
| 498 | LOG_TRANS(trans, LOGL_ERROR, "Insufficient info to process TPDU: " |
| 499 | "gsm_network and/or vlr_subscr is NULL?!?\n"); |
| 500 | return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
| 501 | } |
| 502 | |
| 503 | /* FIXME: should we do this on success, after all checks? */ |
Pau Espin Pedrol | 2e21a68 | 2021-06-04 16:45:44 +0200 | [diff] [blame] | 504 | rate_ctr_inc(rate_ctr_group_get_ctr(net->msc_ctrs, MSC_CTR_SMS_SUBMITTED)); |
Harald Welte | 24ff6ee | 2009-12-22 00:41:05 +0100 | [diff] [blame] | 505 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 506 | gsms = sms_alloc(); |
| 507 | if (!gsms) |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 508 | return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 509 | |
| 510 | /* invert those fields where 0 means active/present */ |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 511 | sms_mti = *smsp & 0x03; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 512 | sms_vpf = (*smsp & 0x18) >> 3; |
Pablo Neira Ayuso | db5ed3b | 2017-08-07 14:01:21 +0100 | [diff] [blame] | 513 | gsms->status_rep_req = (*smsp & 0x20) >> 5; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 514 | gsms->ud_hdr_ind = (*smsp & 0x40); |
Neels Hofmeyr | 58d5430 | 2016-02-24 19:30:52 +0100 | [diff] [blame] | 515 | /* |
| 516 | * Not evaluating MMS (More Messages to Send) because the |
| 517 | * lchan stays open anyway. |
| 518 | * Not evaluating RP (Reply Path) because we're not aware of its |
| 519 | * benefits. |
| 520 | */ |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 521 | |
| 522 | smsp++; |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 523 | gsms->msg_ref = *smsp++; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 524 | |
Pablo Neira Ayuso | 93ffbd0 | 2017-05-04 18:44:22 +0200 | [diff] [blame] | 525 | gsms->gsm411.transaction_id = trans->transaction_id; |
| 526 | gsms->gsm411.msg_ref = gsm411_msg_ref; |
| 527 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 528 | /* length in bytes of the destination address */ |
| 529 | da_len_bytes = 2 + *smsp/2 + *smsp%2; |
| 530 | if (da_len_bytes > 12) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 531 | LOG_TRANS(trans, LOGL_ERROR, "Destination Address > 12 bytes ?!?\n"); |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 532 | rc = GSM411_RP_CAUSE_SEMANT_INC_MSG; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 533 | goto out; |
Harald Welte | e07b6a7 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 534 | } else if (da_len_bytes < 4) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 535 | LOG_TRANS(trans, LOGL_ERROR, "Destination Address < 4 bytes ?!?\n"); |
Harald Welte | e07b6a7 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 536 | rc = GSM411_RP_CAUSE_SEMANT_INC_MSG; |
| 537 | goto out; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 538 | } |
Harald Welte | 3cfdb22 | 2009-06-12 02:42:11 +0800 | [diff] [blame] | 539 | memset(address_lv, 0, sizeof(address_lv)); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 540 | memcpy(address_lv, smsp, da_len_bytes); |
| 541 | /* mangle first byte to reflect length in bytes, not digits */ |
Harald Welte | 3cfdb22 | 2009-06-12 02:42:11 +0800 | [diff] [blame] | 542 | address_lv[0] = da_len_bytes - 1; |
Harald Welte | e07b6a7 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 543 | |
Harald Welte | c0de14d | 2012-11-23 23:35:01 +0100 | [diff] [blame] | 544 | gsms->dst.ton = (address_lv[1] >> 4) & 7; |
| 545 | gsms->dst.npi = address_lv[1] & 0xF; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 546 | /* convert to real number */ |
Neels Hofmeyr | 56f9013 | 2019-04-29 19:14:43 +0200 | [diff] [blame] | 547 | if (gsm48_decode_bcd_number2(gsms->dst.addr, |
| 548 | sizeof(gsms->dst.addr), address_lv, da_len_bytes, 1)) { |
| 549 | LOG_TRANS(trans, LOGL_ERROR, "Failed to decode destination Address\n"); |
| 550 | rc = GSM411_RP_CAUSE_SEMANT_INC_MSG; |
| 551 | goto out; |
| 552 | } |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 553 | smsp += da_len_bytes; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 554 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 555 | gsms->protocol_id = *smsp++; |
| 556 | gsms->data_coding_scheme = *smsp++; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 557 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 558 | sms_alphabet = gsm338_get_sms_alphabet(gsms->data_coding_scheme); |
Holger Hans Peter Freyther | 8e78fa7 | 2010-06-14 16:13:16 +0800 | [diff] [blame] | 559 | if (sms_alphabet == 0xffffffff) { |
Alexander Chemeris | 4ad593c | 2013-10-04 02:42:27 +0200 | [diff] [blame] | 560 | rc = GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
| 561 | goto out; |
Holger Hans Peter Freyther | 8e78fa7 | 2010-06-14 16:13:16 +0800 | [diff] [blame] | 562 | } |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 563 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 564 | switch (sms_vpf) { |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 565 | case GSM340_TP_VPF_RELATIVE: |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 566 | sms_vp = smsp++; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 567 | break; |
| 568 | case GSM340_TP_VPF_ABSOLUTE: |
| 569 | case GSM340_TP_VPF_ENHANCED: |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 570 | sms_vp = smsp; |
Steffen Neubauer | f326267 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 571 | /* the additional functionality indicator... */ |
Steffen Neubauer | ac0c13c | 2009-12-05 12:44:41 +0100 | [diff] [blame] | 572 | if (sms_vpf == GSM340_TP_VPF_ENHANCED && *smsp & (1<<7)) |
| 573 | smsp++; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 574 | smsp += 7; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 575 | break; |
Daniel Willmann | 58c83d8 | 2009-08-13 03:40:49 +0200 | [diff] [blame] | 576 | case GSM340_TP_VPF_NONE: |
| 577 | sms_vp = 0; |
| 578 | break; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 579 | default: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 580 | LOG_TRANS(trans, LOGL_NOTICE, "SMS Validity period not implemented: 0x%02x\n", sms_vpf); |
Alexander Chemeris | 4ad593c | 2013-10-04 02:42:27 +0200 | [diff] [blame] | 581 | rc = GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
| 582 | goto out; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 583 | } |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 584 | |
Vadim Yanitskiy | 4eca09f | 2019-04-16 15:18:33 +0700 | [diff] [blame] | 585 | /* As per 3GPP TS 03.40, section 9.2.3.16, TP-User-Data-Length (TP-UDL) |
| 586 | * may indicate either the number of septets, or the number of octets, |
| 587 | * depending on Data Coding Scheme. We store TP-UDL value as-is, |
| 588 | * so this should be kept in mind to avoid buffer overruns. */ |
| 589 | gsms->user_data_len = *smsp++; |
| 590 | if (gsms->user_data_len > 0) { |
| 591 | if (sms_alphabet == DCS_7BIT_DEFAULT) { |
| 592 | /* TP-UDL is indicated in septets (up to 160) */ |
| 593 | if (gsms->user_data_len > GSM340_UDL_SPT_MAX) { |
| 594 | LOG_TRANS(trans, LOGL_NOTICE, |
| 595 | "TP-User-Data-Length %u (septets) " |
| 596 | "is too big, truncating to %u\n", |
| 597 | gsms->user_data_len, GSM340_UDL_SPT_MAX); |
| 598 | gsms->user_data_len = GSM340_UDL_SPT_MAX; |
| 599 | } |
| 600 | memcpy(gsms->user_data, smsp, gsm_get_octet_len(gsms->user_data_len)); |
| 601 | gsm_7bit_decode_n(gsms->text, sizeof(gsms->text), |
| 602 | smsp, gsms->user_data_len); |
| 603 | } else { |
| 604 | /* TP-UDL is indicated in octets (up to 140) */ |
| 605 | if (gsms->user_data_len > GSM340_UDL_OCT_MAX) { |
| 606 | LOG_TRANS(trans, LOGL_NOTICE, |
| 607 | "TP-User-Data-Length %u (octets) " |
| 608 | "is too big, truncating to %u\n", |
| 609 | gsms->user_data_len, GSM340_UDL_OCT_MAX); |
| 610 | gsms->user_data_len = GSM340_UDL_OCT_MAX; |
| 611 | } |
| 612 | memcpy(gsms->user_data, smsp, gsms->user_data_len); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 613 | } |
| 614 | } |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 615 | |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 616 | OSMO_STRLCPY_ARRAY(gsms->src.addr, vsub->msisdn); |
Harald Welte | d0cf7ba | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 617 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 618 | LOG_TRANS(trans, LOGL_INFO, |
| 619 | "MO SMS -- MTI: 0x%02x, VPF: 0x%02x, " |
| 620 | "MR: 0x%02x PID: 0x%02x, DCS: 0x%02x, DA: %s, " |
| 621 | "UserDataLength: 0x%02x, UserData: \"%s\"\n", |
| 622 | sms_mti, sms_vpf, gsms->msg_ref, |
| 623 | gsms->protocol_id, gsms->data_coding_scheme, gsms->dst.addr, |
| 624 | gsms->user_data_len, |
| 625 | sms_alphabet == DCS_7BIT_DEFAULT ? gsms->text : |
| 626 | osmo_hexdump(gsms->user_data, gsms->user_data_len)); |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 627 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 628 | gsms->validity_minutes = gsm340_validity_period(sms_vpf, sms_vp); |
Harald Welte | a3c639f | 2022-05-17 19:01:43 +0200 | [diff] [blame] | 629 | if (gsms->validity_minutes < net->sms_queue_cfg->minimum_validity_mins) { |
| 630 | LOG_TRANS(trans, LOGL_INFO, "Overriding user-provided validity period (%lu) " |
| 631 | "with minimum SMSC validity period (%u) minutes\n", gsms->validity_minutes, |
| 632 | net->sms_queue_cfg->minimum_validity_mins); |
| 633 | gsms->validity_minutes = net->sms_queue_cfg->minimum_validity_mins; |
| 634 | } |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 635 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 636 | rc = sms_route_mt_sms(trans, gsms); |
Pablo Neira Ayuso | 3c14803 | 2017-08-07 14:01:13 +0100 | [diff] [blame] | 637 | |
Pablo Neira Ayuso | 83616a8 | 2020-01-15 10:00:24 +0100 | [diff] [blame] | 638 | /* This SMS got routed through SMPP and we are waiting on the response. */ |
| 639 | if (gsms->smpp.esme) { |
Vadim Yanitskiy | ef19fc1 | 2021-11-29 02:09:43 +0300 | [diff] [blame] | 640 | rc = -EINPROGRESS; |
| 641 | goto out; |
Pablo Neira Ayuso | 83616a8 | 2020-01-15 10:00:24 +0100 | [diff] [blame] | 642 | } |
Keith Whyte | 192fefe | 2020-09-01 16:41:32 +0200 | [diff] [blame] | 643 | |
| 644 | /* This SMS got routed through SMPP, but the configured ESME was |
| 645 | * unavailable at this time. This is an OOO condition. |
| 646 | * Don't store this SMS in the database as we may never be |
| 647 | * able to deliver it. (we would need to process the stored SMS and |
| 648 | * attempt re-submission to the ESME) |
| 649 | */ |
| 650 | if (rc == GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER) |
Vadim Yanitskiy | 6d594e4 | 2021-11-29 15:45:25 +0300 | [diff] [blame] | 651 | goto out; /* free() the message */ |
Keith Whyte | 192fefe | 2020-09-01 16:41:32 +0200 | [diff] [blame] | 652 | |
Stefan Sperling | 1e67fea | 2018-01-22 18:33:42 +0100 | [diff] [blame] | 653 | /* |
| 654 | * This SMS got routed through SMPP or no receiver exists. |
| 655 | * In any case, we store it in the database for further processing. |
| 656 | */ |
Pablo Neira Ayuso | 3c14803 | 2017-08-07 14:01:13 +0100 | [diff] [blame] | 657 | |
| 658 | switch (sms_mti) { |
| 659 | case GSM340_SMS_SUBMIT_MS2SC: |
| 660 | /* MS is submitting a SMS */ |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 661 | rc = gsm340_rx_sms_submit(trans, gsms); |
Pablo Neira Ayuso | 3c14803 | 2017-08-07 14:01:13 +0100 | [diff] [blame] | 662 | break; |
| 663 | case GSM340_SMS_COMMAND_MS2SC: |
| 664 | case GSM340_SMS_DELIVER_REP_MS2SC: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 665 | LOG_TRANS(trans, LOGL_NOTICE, "Unimplemented MTI 0x%02x\n", sms_mti); |
Pablo Neira Ayuso | 3c14803 | 2017-08-07 14:01:13 +0100 | [diff] [blame] | 666 | rc = GSM411_RP_CAUSE_IE_NOTEXIST; |
| 667 | break; |
| 668 | default: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 669 | LOG_TRANS(trans, LOGL_NOTICE, "Undefined MTI 0x%02x\n", sms_mti); |
Pablo Neira Ayuso | 3c14803 | 2017-08-07 14:01:13 +0100 | [diff] [blame] | 670 | rc = GSM411_RP_CAUSE_IE_NOTEXIST; |
| 671 | break; |
| 672 | } |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 673 | out: |
Pablo Neira Ayuso | fdc9966 | 2017-08-07 14:01:10 +0100 | [diff] [blame] | 674 | sms_free(gsms); |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 675 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 676 | return rc; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 677 | } |
| 678 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 679 | /* Prefix msg with a RP-DATA header and send as SMR DATA */ |
| 680 | static int gsm411_rp_sendmsg(struct gsm411_smr_inst *inst, struct msgb *msg, |
| 681 | uint8_t rp_msg_type, uint8_t rp_msg_ref, |
| 682 | int rl_msg_type) |
| 683 | { |
| 684 | struct gsm411_rp_hdr *rp; |
| 685 | uint8_t len = msg->len; |
| 686 | |
| 687 | /* GSM 04.11 RP-DATA header */ |
| 688 | rp = (struct gsm411_rp_hdr *)msgb_push(msg, sizeof(*rp)); |
| 689 | rp->len = len + 2; |
| 690 | rp->msg_type = rp_msg_type; |
Holger Hans Peter Freyther | ca11443 | 2014-02-08 15:20:48 +0100 | [diff] [blame] | 691 | rp->msg_ref = rp_msg_ref; |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 692 | |
| 693 | return gsm411_smr_send(inst, rl_msg_type, msg); |
| 694 | } |
| 695 | |
Pablo Neira Ayuso | 93ffbd0 | 2017-05-04 18:44:22 +0200 | [diff] [blame] | 696 | 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] | 697 | { |
| 698 | struct msgb *msg = gsm411_msgb_alloc(); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 699 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 700 | LOG_TRANS(trans, LOGL_DEBUG, "TX: SMS RP ACK\n"); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 701 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 702 | return gsm411_rp_sendmsg(&trans->sms.smr_inst, msg, GSM411_MT_RP_ACK_MT, |
| 703 | msg_ref, GSM411_SM_RL_REPORT_REQ); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 704 | } |
| 705 | |
Pablo Neira Ayuso | 93ffbd0 | 2017-05-04 18:44:22 +0200 | [diff] [blame] | 706 | int gsm411_send_rp_error(struct gsm_trans *trans, uint8_t msg_ref, |
| 707 | uint8_t cause) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 708 | { |
| 709 | struct msgb *msg = gsm411_msgb_alloc(); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 710 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 711 | msgb_tv_put(msg, 1, cause); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 712 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 713 | LOG_TRANS(trans, LOGL_NOTICE, "TX: SMS RP ERROR, cause %d (%s)\n", cause, |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 714 | get_value_string(gsm411_rp_cause_strs, cause)); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 715 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 716 | return gsm411_rp_sendmsg(&trans->sms.smr_inst, msg, |
| 717 | GSM411_MT_RP_ERROR_MT, msg_ref, GSM411_SM_RL_REPORT_REQ); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 718 | } |
| 719 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 720 | /* Receive a 04.11 TPDU inside RP-DATA / user data */ |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 721 | 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] | 722 | struct gsm411_rp_hdr *rph, |
| 723 | uint8_t *dst, uint8_t dst_len) |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 724 | { |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 725 | int rc = 0; |
| 726 | |
Vadim Yanitskiy | 76ef72d | 2018-11-07 05:08:18 +0700 | [diff] [blame] | 727 | if (trans->net->sms_over_gsup) { |
| 728 | /* RP-ACK or RP-ERROR is triggered as soon as we get the response */ |
| 729 | rc = gsm411_gsup_mo_fwd_sm_req(trans, msg, rph->msg_ref, dst, dst_len); |
| 730 | if (rc) /* GSUP message sending error */ |
| 731 | return gsm411_send_rp_error(trans, rph->msg_ref, rc); |
| 732 | |
| 733 | return 0; |
| 734 | } |
| 735 | |
Pablo Neira Ayuso | fdc9966 | 2017-08-07 14:01:10 +0100 | [diff] [blame] | 736 | rc = gsm340_rx_tpdu(trans, msg, rph->msg_ref); |
| 737 | if (rc == 0) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 738 | return gsm411_send_rp_ack(trans, rph->msg_ref); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 739 | else if (rc > 0) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 740 | return gsm411_send_rp_error(trans, rph->msg_ref, rc); |
Pablo Neira Ayuso | 83616a8 | 2020-01-15 10:00:24 +0100 | [diff] [blame] | 741 | else if (rc == -EINPROGRESS) |
| 742 | rc = 0; |
| 743 | |
| 744 | return rc; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 745 | } |
| 746 | |
| 747 | /* 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] | 748 | static int gsm411_rx_rp_data(struct msgb *msg, struct gsm_trans *trans, |
| 749 | struct gsm411_rp_hdr *rph) |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 750 | { |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 751 | uint8_t src_len, dst_len, rpud_len; |
| 752 | uint8_t *src = NULL, *dst = NULL , *rp_ud = NULL; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 753 | |
| 754 | /* in the MO case, this should always be zero length */ |
| 755 | src_len = rph->data[0]; |
| 756 | if (src_len) |
| 757 | src = &rph->data[1]; |
| 758 | |
| 759 | dst_len = rph->data[1+src_len]; |
| 760 | if (dst_len) |
| 761 | dst = &rph->data[1+src_len+1]; |
| 762 | |
| 763 | rpud_len = rph->data[1+src_len+1+dst_len]; |
| 764 | if (rpud_len) |
| 765 | rp_ud = &rph->data[1+src_len+1+dst_len+1]; |
| 766 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 767 | LOG_TRANS(trans, LOGL_DEBUG, "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] | 768 | src_len, dst_len, rpud_len); |
Vadim Yanitskiy | 535f110 | 2018-11-07 03:20:00 +0700 | [diff] [blame] | 769 | |
| 770 | if (src_len && src) |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 771 | LOG_TRANS(trans, LOGL_ERROR, "RP-DATA (MO) with SRC ?!?\n"); |
Vadim Yanitskiy | 535f110 | 2018-11-07 03:20:00 +0700 | [diff] [blame] | 772 | |
| 773 | if (!dst_len || !dst || !rpud_len || !rp_ud) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 774 | LOG_TRANS(trans, LOGL_ERROR, |
Vadim Yanitskiy | 535f110 | 2018-11-07 03:20:00 +0700 | [diff] [blame] | 775 | "RP-DATA (MO) without DST or TPDU ?!?\n"); |
| 776 | gsm411_send_rp_error(trans, rph->msg_ref, |
| 777 | GSM411_RP_CAUSE_INV_MAND_INF); |
| 778 | return -EIO; |
| 779 | } |
| 780 | |
| 781 | msg->l4h = rp_ud; |
| 782 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 783 | LOG_TRANS(trans, LOGL_DEBUG, "DST(%u,%s)\n", dst_len, osmo_hexdump(dst, dst_len)); |
Vadim Yanitskiy | 535f110 | 2018-11-07 03:20:00 +0700 | [diff] [blame] | 784 | |
Vadim Yanitskiy | 76ef72d | 2018-11-07 05:08:18 +0700 | [diff] [blame] | 785 | return gsm411_rx_rp_ud(msg, trans, rph, dst, dst_len); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 786 | } |
| 787 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 788 | static struct gsm_sms *sms_report_alloc(struct gsm_sms *sms, struct gsm_trans *trans) |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 789 | { |
| 790 | struct gsm_sms *sms_report; |
| 791 | int len; |
| 792 | |
| 793 | sms_report = sms_alloc(); |
| 794 | OSMO_ASSERT(sms_report); |
| 795 | |
| 796 | sms_report->msg_ref = sms->msg_ref; |
| 797 | sms_report->protocol_id = sms->protocol_id; |
| 798 | sms_report->data_coding_scheme = GSM338_DCS_1111_8BIT_DATA; |
| 799 | |
| 800 | /* Invert address to send status report back to origin. */ |
| 801 | sms_report->src = sms->dst; |
| 802 | sms_report->dst = sms->src; |
| 803 | |
| 804 | /* As specified by Appendix B. Delivery Receipt Format. |
| 805 | * TODO: Many fields in this string are just set with dummy values, |
| 806 | * revisit this. |
| 807 | */ |
| 808 | len = snprintf((char *)sms_report->user_data, |
| 809 | sizeof(sms_report->user_data), |
| 810 | "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] | 811 | sms->id, sms->text); |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 812 | sms_report->user_data_len = len; |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 813 | LOG_TRANS(trans, LOGL_NOTICE, "%s\n", sms_report->user_data); |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 814 | |
| 815 | /* This represents a sms report. */ |
| 816 | sms_report->is_report = true; |
| 817 | |
| 818 | return sms_report; |
| 819 | } |
| 820 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 821 | static void sms_status_report(struct gsm_sms *gsms, struct gsm_trans *trans) |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 822 | { |
| 823 | struct gsm_sms *sms_report; |
| 824 | int rc; |
| 825 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 826 | sms_report = sms_report_alloc(gsms, trans); |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 827 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 828 | rc = sms_route_mt_sms(trans, sms_report); |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 829 | if (rc < 0) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 830 | LOG_TRANS(trans, LOGL_ERROR, "Failed to send status report! err=%d\n", rc); |
| 831 | return; |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 832 | } |
Pablo Neira Ayuso | 27aed14 | 2017-08-07 16:17:17 +0200 | [diff] [blame] | 833 | |
| 834 | /* No route via SMPP, send the GSM 03.40 status-report now. */ |
Keith Whyte | bea25f1 | 2018-11-16 13:29:05 +0000 | [diff] [blame] | 835 | if (sms_report->receiver) |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 836 | gsm340_rx_sms_submit(trans, sms_report); |
Pablo Neira Ayuso | 27aed14 | 2017-08-07 16:17:17 +0200 | [diff] [blame] | 837 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 838 | LOG_TRANS(trans, LOGL_NOTICE, "Status report has been sent\n"); |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 839 | |
| 840 | sms_free(sms_report); |
| 841 | } |
| 842 | |
Harald Welte | cb8f443 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 843 | /* 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] | 844 | static int gsm411_rx_rp_ack(struct gsm_trans *trans, |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 845 | struct gsm411_rp_hdr *rph) |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 846 | { |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 847 | struct gsm_sms *sms = trans->sms.sms; |
| 848 | |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 849 | /* Acnkowledgement to MT RP_DATA, i.e. the MS confirms it |
| 850 | * successfully received a SMS. We can now safely mark it as |
| 851 | * transmitted */ |
| 852 | |
Vadim Yanitskiy | 82cc8a5 | 2018-11-15 01:05:53 +0700 | [diff] [blame] | 853 | if (trans->net->sms_over_gsup) { |
| 854 | /* Forward towards SMSC via GSUP */ |
| 855 | return gsm411_gsup_mt_fwd_sm_res(trans, rph->msg_ref); |
| 856 | } |
| 857 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 858 | if (!sms) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 859 | LOG_TRANS(trans, LOGL_ERROR, "RX RP-ACK but no sms in transaction?!?\n"); |
Harald Welte | cb8f443 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 860 | return gsm411_send_rp_error(trans, rph->msg_ref, |
| 861 | GSM411_RP_CAUSE_PROTOCOL_ERR); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 862 | } |
| 863 | |
| 864 | /* mark this SMS as sent in database */ |
Alexander Chemeris | 1e77e3d | 2014-03-08 21:27:37 +0100 | [diff] [blame] | 865 | db_sms_mark_delivered(sms); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 866 | |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 867 | send_signal(S_SMS_DELIVERED, trans, sms, 0); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 868 | |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 869 | if (sms->status_rep_req) |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 870 | sms_status_report(sms, trans); |
Pablo Neira Ayuso | adae859 | 2017-08-07 14:01:30 +0100 | [diff] [blame] | 871 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 872 | sms_free(sms); |
| 873 | trans->sms.sms = NULL; |
| 874 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 875 | return 0; |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 876 | } |
| 877 | |
Vadim Yanitskiy | 0c8998f | 2018-11-22 16:54:36 +0700 | [diff] [blame] | 878 | static int gsm411_rx_rp_error(struct gsm_trans *trans, |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 879 | struct gsm411_rp_hdr *rph) |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 880 | { |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 881 | struct msc_a *msc_a = trans->msc_a; |
| 882 | struct gsm_network *net = msc_a_net(msc_a); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 883 | struct gsm_sms *sms = trans->sms.sms; |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 884 | uint8_t cause_len = rph->data[0]; |
| 885 | uint8_t cause = rph->data[1]; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 886 | |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 887 | /* Error in response to MT RP_DATA, i.e. the MS did not |
| 888 | * successfully receive the SMS. We need to investigate |
| 889 | * the cause and take action depending on it */ |
| 890 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 891 | LOG_TRANS(trans, LOGL_NOTICE, "RX SMS RP-ERROR, cause %d:%d (%s)\n", |
| 892 | cause_len, cause, get_value_string(gsm411_rp_cause_strs, cause)); |
Harald Welte | 3e0f617 | 2009-07-09 23:52:59 +0200 | [diff] [blame] | 893 | |
Vadim Yanitskiy | 82cc8a5 | 2018-11-15 01:05:53 +0700 | [diff] [blame] | 894 | if (trans->net->sms_over_gsup) { |
| 895 | /* Forward towards SMSC via GSUP */ |
| 896 | return gsm411_gsup_mt_fwd_sm_err(trans, rph->msg_ref, cause); |
| 897 | } |
| 898 | |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 899 | if (!sms) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 900 | LOG_TRANS(trans, LOGL_ERROR, "RX RP-ERR, but no sms in transaction?!?\n"); |
Harald Welte (local) | ee4410a | 2009-08-17 09:39:55 +0200 | [diff] [blame] | 901 | return -EINVAL; |
| 902 | #if 0 |
Harald Welte | cb8f443 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 903 | return gsm411_send_rp_error(trans, rph->msg_ref, |
| 904 | GSM411_RP_CAUSE_PROTOCOL_ERR); |
Harald Welte (local) | ee4410a | 2009-08-17 09:39:55 +0200 | [diff] [blame] | 905 | #endif |
Harald Welte | cb8f443 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 906 | } |
| 907 | |
| 908 | if (cause == GSM411_RP_CAUSE_MT_MEM_EXCEEDED) { |
| 909 | /* 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] | 910 | * to store this in our database and wait for a SMMA message */ |
Harald Welte | cb8f443 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 911 | /* FIXME */ |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 912 | send_signal(S_SMS_MEM_EXCEEDED, trans, sms, 0); |
Pau Espin Pedrol | 2e21a68 | 2021-06-04 16:45:44 +0200 | [diff] [blame] | 913 | rate_ctr_inc(rate_ctr_group_get_ctr(net->msc_ctrs, MSC_CTR_SMS_RP_ERR_MEM)); |
Holger Hans Peter Freyther | 0eb7666 | 2010-12-24 09:47:04 +0100 | [diff] [blame] | 914 | } else { |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 915 | send_signal(S_SMS_UNKNOWN_ERROR, trans, sms, 0); |
Pau Espin Pedrol | 2e21a68 | 2021-06-04 16:45:44 +0200 | [diff] [blame] | 916 | rate_ctr_inc(rate_ctr_group_get_ctr(net->msc_ctrs, MSC_CTR_SMS_RP_ERR_OTHER)); |
Holger Hans Peter Freyther | 0eb7666 | 2010-12-24 09:47:04 +0100 | [diff] [blame] | 917 | } |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 918 | |
| 919 | sms_free(sms); |
| 920 | trans->sms.sms = NULL; |
| 921 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 922 | return 0; |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 923 | } |
| 924 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 925 | static int gsm411_rx_rp_smma(struct msgb *msg, struct gsm_trans *trans, |
| 926 | struct gsm411_rp_hdr *rph) |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 927 | { |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 928 | int rc; |
| 929 | |
Vadim Yanitskiy | 76ef72d | 2018-11-07 05:08:18 +0700 | [diff] [blame] | 930 | if (trans->net->sms_over_gsup) { |
| 931 | /* RP-ACK or RP-ERROR is triggered as soon as we get the response */ |
| 932 | rc = gsm411_gsup_mo_ready_for_sm_req(trans, rph->msg_ref); |
| 933 | if (rc) /* GSUP message sending error */ |
| 934 | return gsm411_send_rp_error(trans, rph->msg_ref, rc); |
| 935 | |
| 936 | return 0; |
| 937 | } |
| 938 | |
Harald Welte | cf6a381 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 939 | rc = gsm411_send_rp_ack(trans, rph->msg_ref); |
Harald Welte | cf6a381 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 940 | |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 941 | /* MS tells us that it has memory for more SMS, we need |
| 942 | * to check if we have any pending messages for it and then |
| 943 | * transfer those */ |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 944 | send_signal(S_SMS_SMMA, trans, NULL, 0); |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 945 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 946 | return rc; |
Harald Welte | b9c758b | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 947 | } |
| 948 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 949 | /* receive RL DATA */ |
| 950 | 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] | 951 | struct gsm_trans *trans) |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 952 | { |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 953 | 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] | 954 | uint8_t msg_type = rp_data->msg_type & 0x07; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 955 | int rc = 0; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 956 | |
| 957 | switch (msg_type) { |
| 958 | case GSM411_MT_RP_DATA_MO: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 959 | LOG_TRANS(trans, LOGL_DEBUG, "RX SMS RP-DATA (MO)\n"); |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 960 | rc = gsm411_rx_rp_data(msg, trans, rp_data); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 961 | break; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 962 | case GSM411_MT_RP_SMMA_MO: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 963 | LOG_TRANS(trans, LOGL_DEBUG, "RX SMS RP-SMMA\n"); |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 964 | rc = gsm411_rx_rp_smma(msg, trans, rp_data); |
| 965 | break; |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 966 | default: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 967 | LOG_TRANS(trans, LOGL_NOTICE, "Invalid RP type 0x%02x\n", msg_type); |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 968 | rc = -EINVAL; |
| 969 | break; |
| 970 | } |
| 971 | |
| 972 | return rc; |
| 973 | } |
| 974 | |
| 975 | /* receive RL REPORT */ |
| 976 | static int gsm411_rx_rl_report(struct msgb *msg, struct gsm48_hdr *gh, |
| 977 | struct gsm_trans *trans) |
| 978 | { |
| 979 | struct gsm411_rp_hdr *rp_data = (struct gsm411_rp_hdr*)&gh->data; |
| 980 | uint8_t msg_type = rp_data->msg_type & 0x07; |
| 981 | int rc = 0; |
| 982 | |
| 983 | switch (msg_type) { |
| 984 | case GSM411_MT_RP_ACK_MO: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 985 | LOG_TRANS(trans, LOGL_DEBUG, "RX SMS RP-ACK (MO)\n"); |
Vadim Yanitskiy | 0c8998f | 2018-11-22 16:54:36 +0700 | [diff] [blame] | 986 | rc = gsm411_rx_rp_ack(trans, rp_data); |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 987 | break; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 988 | case GSM411_MT_RP_ERROR_MO: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 989 | LOG_TRANS(trans, LOGL_DEBUG, "RX SMS RP-ERROR (MO)\n"); |
Vadim Yanitskiy | 0c8998f | 2018-11-22 16:54:36 +0700 | [diff] [blame] | 990 | rc = gsm411_rx_rp_error(trans, rp_data); |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 991 | break; |
| 992 | default: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 993 | LOG_TRANS(trans, LOGL_NOTICE, "Invalid RP type 0x%02x\n", msg_type); |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 994 | rc = -EINVAL; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 995 | break; |
| 996 | } |
| 997 | |
| 998 | return rc; |
| 999 | } |
| 1000 | |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 1001 | /* receive SM-RL sap message from SMR |
| 1002 | * NOTE: Message is freed by sender |
| 1003 | */ |
| 1004 | int gsm411_rl_recv(struct gsm411_smr_inst *inst, int msg_type, |
| 1005 | struct msgb *msg) |
| 1006 | { |
| 1007 | struct gsm_trans *trans = |
| 1008 | container_of(inst, struct gsm_trans, sms.smr_inst); |
| 1009 | struct gsm48_hdr *gh = msgb_l3(msg); |
| 1010 | int rc = 0; |
| 1011 | |
| 1012 | switch (msg_type) { |
| 1013 | case GSM411_SM_RL_DATA_IND: |
| 1014 | rc = gsm411_rx_rl_data(msg, gh, trans); |
| 1015 | break; |
| 1016 | case GSM411_SM_RL_REPORT_IND: |
| 1017 | if (gh) |
| 1018 | rc = gsm411_rx_rl_report(msg, gh, trans); |
| 1019 | break; |
| 1020 | default: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1021 | LOG_TRANS(trans, LOGL_NOTICE, "Unhandled SM-RL message 0x%x\n", msg_type); |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 1022 | rc = -EINVAL; |
| 1023 | } |
| 1024 | |
| 1025 | return rc; |
| 1026 | } |
| 1027 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1028 | /* receive MNCCSMS sap message from SMC |
| 1029 | * NOTE: Message is freed by sender |
| 1030 | */ |
| 1031 | static int gsm411_mn_recv(struct gsm411_smc_inst *inst, int msg_type, |
| 1032 | struct msgb *msg) |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1033 | { |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1034 | struct gsm_trans *trans = |
| 1035 | container_of(inst, struct gsm_trans, sms.smc_inst); |
| 1036 | struct gsm48_hdr *gh = msgb_l3(msg); |
| 1037 | int rc = 0; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1038 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1039 | switch (msg_type) { |
| 1040 | case GSM411_MNSMS_EST_IND: |
| 1041 | case GSM411_MNSMS_DATA_IND: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1042 | LOG_TRANS(trans, LOGL_DEBUG, "MNSMS-DATA/EST-IND\n"); |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 1043 | rc = gsm411_smr_recv(&trans->sms.smr_inst, msg_type, msg); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1044 | break; |
| 1045 | case GSM411_MNSMS_ERROR_IND: |
| 1046 | if (gh) |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1047 | LOG_TRANS(trans, LOGL_DEBUG, "MNSMS-ERROR-IND, cause %d (%s)\n", |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1048 | gh->data[0], |
| 1049 | get_value_string(gsm411_cp_cause_strs, |
| 1050 | gh->data[0])); |
| 1051 | else |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1052 | LOG_TRANS(trans, LOGL_DEBUG, "MNSMS-ERROR-IND, no cause\n"); |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 1053 | rc = gsm411_smr_recv(&trans->sms.smr_inst, msg_type, msg); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1054 | break; |
| 1055 | default: |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1056 | LOG_TRANS(trans, LOGL_NOTICE, "Unhandled MNCCSMS msg 0x%x\n", msg_type); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1057 | rc = -EINVAL; |
Harald Welte | cf6a381 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1058 | } |
Holger Hans Peter Freyther | 09e364b | 2009-08-10 07:59:27 +0200 | [diff] [blame] | 1059 | |
| 1060 | return rc; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1061 | } |
| 1062 | |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1063 | static struct gsm_trans *gsm411_trans_init(struct gsm_network *net, struct vlr_subscr *vsub, struct msc_a *msc_a, |
| 1064 | uint8_t tid, bool mo) |
Max | 0e8dfad | 2019-01-16 12:05:30 +0100 | [diff] [blame] | 1065 | { |
| 1066 | /* Allocate a new transaction */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1067 | struct gsm_trans *trans = trans_alloc(net, vsub, TRANS_SMS, tid, new_callref++); |
Max | 0e8dfad | 2019-01-16 12:05:30 +0100 | [diff] [blame] | 1068 | if (!trans) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1069 | LOG_TRANS(trans, LOGL_ERROR, "No memory for transaction\n"); |
Max | 0e8dfad | 2019-01-16 12:05:30 +0100 | [diff] [blame] | 1070 | return NULL; |
| 1071 | } |
| 1072 | |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1073 | if (msc_a) { |
| 1074 | msc_a_get(msc_a, MSC_A_USE_SMS); |
| 1075 | trans->msc_a = msc_a; |
| 1076 | |
| 1077 | osmo_fsm_inst_dispatch(msc_a->c.fi, MSC_A_EV_TRANSACTION_ACCEPTED, trans); |
| 1078 | if (mo) { |
| 1079 | if (!osmo_use_count_by(&msc_a->use_count, MSC_A_USE_CM_SERVICE_SMS)) |
| 1080 | LOG_TRANS(trans, LOGL_ERROR, "MO SMS without prior CM Service Request\n"); |
| 1081 | else |
| 1082 | msc_a_put(msc_a, MSC_A_USE_CM_SERVICE_SMS); |
| 1083 | } |
| 1084 | } |
| 1085 | |
| 1086 | /* Init both SMC and SMR state machines */ |
| 1087 | gsm411_smc_init(&trans->sms.smc_inst, 0, 1, |
| 1088 | gsm411_mn_recv, gsm411_mm_send); |
| 1089 | gsm411_smr_init(&trans->sms.smr_inst, 0, 1, |
| 1090 | gsm411_rl_recv, gsm411_mn_send); |
Max | 0e8dfad | 2019-01-16 12:05:30 +0100 | [diff] [blame] | 1091 | |
| 1092 | return trans; |
| 1093 | } |
| 1094 | |
Vadim Yanitskiy | c7de62c | 2019-01-18 16:01:50 +0700 | [diff] [blame] | 1095 | /* Assigns an (unused) SM-RP-MR value to a given transaction */ |
| 1096 | static int gsm411_assign_sm_rp_mr(struct gsm_trans *trans) |
| 1097 | { |
| 1098 | uint8_t mr; |
| 1099 | |
| 1100 | /* After allocation a given transaction has zero-initialized |
| 1101 | * SM-RP-MR value, so trans_find_by_sm_rp_mr() may consider |
| 1102 | * 0x00 as used. This is why we "poison" this transaction |
| 1103 | * using the highest value. */ |
| 1104 | trans->sms.sm_rp_mr = 0xff; |
| 1105 | |
| 1106 | /* According to 8.2.3, MR is in the range 0 through 255 */ |
| 1107 | for (mr = 0x00; mr < 0xff; mr++) { |
| 1108 | if (trans_find_by_sm_rp_mr(trans->net, trans->vsub, mr)) |
| 1109 | continue; /* this MR is busy, find another one */ |
| 1110 | /* An unused value has been found, assign it */ |
| 1111 | trans->sms.sm_rp_mr = mr; |
| 1112 | return 0; |
| 1113 | } |
| 1114 | |
| 1115 | /* All possible values are busy */ |
| 1116 | return -EBUSY; |
| 1117 | } |
| 1118 | |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1119 | static struct gsm_trans *gsm411_alloc_mt_trans(struct gsm_network *net, |
| 1120 | struct vlr_subscr *vsub) |
| 1121 | { |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1122 | struct msc_a *msc_a; |
Vadim Yanitskiy | 7659482 | 2019-06-19 20:10:38 +0700 | [diff] [blame] | 1123 | struct gsm_trans *trans; |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1124 | int tid; |
| 1125 | |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1126 | /* Generate a new transaction ID */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1127 | tid = trans_assign_trans_id(net, vsub, TRANS_SMS); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1128 | if (tid == -1) { |
Vadim Yanitskiy | 7659482 | 2019-06-19 20:10:38 +0700 | [diff] [blame] | 1129 | LOGP(DLSMS, LOGL_ERROR, "No available transaction IDs\n"); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1130 | return NULL; |
| 1131 | } |
| 1132 | |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1133 | /* Attempt to find an existing connection */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1134 | msc_a = msc_a_for_vsub(vsub, true); |
Max | 0e8dfad | 2019-01-16 12:05:30 +0100 | [diff] [blame] | 1135 | |
| 1136 | /* Allocate a new transaction */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1137 | trans = gsm411_trans_init(net, vsub, msc_a, tid, false); |
Max | 0e8dfad | 2019-01-16 12:05:30 +0100 | [diff] [blame] | 1138 | if (!trans) |
| 1139 | return NULL; |
| 1140 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1141 | LOG_TRANS(trans, LOGL_INFO, "Going to send a MT SMS\n"); |
| 1142 | |
Vadim Yanitskiy | c7de62c | 2019-01-18 16:01:50 +0700 | [diff] [blame] | 1143 | /* Assign a unique SM-RP Message Reference */ |
| 1144 | if (gsm411_assign_sm_rp_mr(trans) != 0) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1145 | LOG_TRANS(trans, LOGL_ERROR, "Failed to assign SM-RP-MR\n"); |
Vadim Yanitskiy | c7de62c | 2019-01-18 16:01:50 +0700 | [diff] [blame] | 1146 | trans_free(trans); |
| 1147 | return NULL; |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1148 | } |
| 1149 | |
Vadim Yanitskiy | 14e32a4 | 2018-11-30 19:10:37 +0700 | [diff] [blame] | 1150 | /* Use SAPI 3 (see GSM 04.11, section 2.3) */ |
| 1151 | trans->dlci = UM_SAPI_SMS; |
| 1152 | |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1153 | return trans; |
| 1154 | } |
| 1155 | |
| 1156 | /* High-level function to send an SMS to a given subscriber */ |
| 1157 | int gsm411_send_sms(struct gsm_network *net, |
| 1158 | struct vlr_subscr *vsub, |
| 1159 | struct gsm_sms *sms) |
| 1160 | { |
| 1161 | uint8_t *data, *rp_ud_len; |
| 1162 | struct gsm_trans *trans; |
| 1163 | struct msgb *msg; |
| 1164 | int rc; |
| 1165 | |
| 1166 | /* Allocate a new transaction for MT SMS */ |
| 1167 | trans = gsm411_alloc_mt_trans(net, vsub); |
| 1168 | if (!trans) { |
| 1169 | send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, 0); |
| 1170 | sms_free(sms); |
| 1171 | return -ENOMEM; |
| 1172 | } |
| 1173 | |
| 1174 | /* Allocate a message buffer for to be encoded SMS */ |
| 1175 | msg = gsm411_msgb_alloc(); |
| 1176 | if (!msg) { |
| 1177 | send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, 0); |
| 1178 | trans_free(trans); |
| 1179 | sms_free(sms); |
| 1180 | return -ENOMEM; |
| 1181 | } |
| 1182 | |
| 1183 | /* Hardcode SMSC Originating Address for now */ |
| 1184 | data = (uint8_t *)msgb_put(msg, 8); |
| 1185 | data[0] = 0x07; /* originator length == 7 */ |
| 1186 | data[1] = 0x91; /* type of number: international, ISDN */ |
| 1187 | data[2] = 0x44; /* 447785016005 */ |
| 1188 | data[3] = 0x77; |
| 1189 | data[4] = 0x58; |
| 1190 | data[5] = 0x10; |
| 1191 | data[6] = 0x06; |
| 1192 | data[7] = 0x50; |
| 1193 | |
| 1194 | /* Hardcoded Destination Address */ |
| 1195 | data = (uint8_t *)msgb_put(msg, 1); |
| 1196 | data[0] = 0; /* destination length == 0 */ |
| 1197 | |
| 1198 | /* obtain a pointer for the rp_ud_len, so we can fill it later */ |
| 1199 | rp_ud_len = (uint8_t *)msgb_put(msg, 1); |
| 1200 | |
| 1201 | if (sms->is_report) { |
| 1202 | /* generate the 03.40 SMS-STATUS-REPORT TPDU */ |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1203 | rc = gsm340_gen_sms_status_report_tpdu(trans, msg, sms); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1204 | } else { |
| 1205 | /* generate the 03.40 SMS-DELIVER TPDU */ |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1206 | rc = gsm340_gen_sms_deliver_tpdu(trans, msg, sms); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1207 | } |
| 1208 | if (rc < 0) { |
| 1209 | send_signal(S_SMS_UNKNOWN_ERROR, trans, sms, 0); |
| 1210 | sms_free(sms); |
| 1211 | trans_free(trans); |
| 1212 | msgb_free(msg); |
| 1213 | return rc; |
| 1214 | } |
| 1215 | |
| 1216 | *rp_ud_len = rc; |
| 1217 | |
| 1218 | /* Store a pointer to abstract SMS representation */ |
| 1219 | trans->sms.sms = sms; |
| 1220 | |
Pau Espin Pedrol | 2e21a68 | 2021-06-04 16:45:44 +0200 | [diff] [blame] | 1221 | rate_ctr_inc(rate_ctr_group_get_ctr(net->msc_ctrs, MSC_CTR_SMS_DELIVERED)); |
Vadim Yanitskiy | 24e025e | 2018-11-22 15:42:39 +0700 | [diff] [blame] | 1222 | db_sms_inc_deliver_attempts(trans->sms.sms); |
| 1223 | |
| 1224 | return gsm411_rp_sendmsg(&trans->sms.smr_inst, msg, |
| 1225 | GSM411_MT_RP_DATA_MT, trans->sms.sm_rp_mr, |
| 1226 | GSM411_SM_RL_DATA_REQ); |
| 1227 | } |
| 1228 | |
Vadim Yanitskiy | 82cc8a5 | 2018-11-15 01:05:53 +0700 | [diff] [blame] | 1229 | /* Low-level function to send raw RP-DATA to a given subscriber */ |
| 1230 | int gsm411_send_rp_data(struct gsm_network *net, struct vlr_subscr *vsub, |
| 1231 | size_t sm_rp_oa_len, const uint8_t *sm_rp_oa, |
Vadim Yanitskiy | 643270f | 2019-05-12 05:38:41 +0700 | [diff] [blame] | 1232 | size_t sm_rp_ud_len, const uint8_t *sm_rp_ud, |
| 1233 | bool sm_rp_mmts_ind) |
Vadim Yanitskiy | 82cc8a5 | 2018-11-15 01:05:53 +0700 | [diff] [blame] | 1234 | { |
| 1235 | struct gsm_trans *trans; |
| 1236 | struct msgb *msg; |
| 1237 | |
| 1238 | /* Allocate a new transaction for MT SMS */ |
| 1239 | trans = gsm411_alloc_mt_trans(net, vsub); |
| 1240 | if (!trans) |
| 1241 | return -ENOMEM; |
| 1242 | |
Vadim Yanitskiy | 643270f | 2019-05-12 05:38:41 +0700 | [diff] [blame] | 1243 | /* Multi-part SMS: handle MMTS (More Messages to Send) indication */ |
| 1244 | trans->sms.sm_rp_mmts_ind = sm_rp_mmts_ind; |
| 1245 | if (trans->msc_a != NULL) |
| 1246 | gsm411_handle_mmts_ind(trans); |
| 1247 | |
Vadim Yanitskiy | 82cc8a5 | 2018-11-15 01:05:53 +0700 | [diff] [blame] | 1248 | /* Allocate a message buffer for to be encoded SMS */ |
| 1249 | msg = gsm411_msgb_alloc(); |
| 1250 | if (!msg) { |
| 1251 | trans_free(trans); |
| 1252 | return -ENOMEM; |
| 1253 | } |
| 1254 | |
| 1255 | /* Encode SM-RP-OA (SMSC address) */ |
| 1256 | msgb_lv_put(msg, sm_rp_oa_len, sm_rp_oa); |
| 1257 | |
| 1258 | /* Encode SM-RP-DA (shall be empty, len=0) */ |
| 1259 | msgb_v_put(msg, 0x00); |
| 1260 | |
| 1261 | /* Encode RP-UD itself (SM TPDU) */ |
| 1262 | msgb_lv_put(msg, sm_rp_ud_len, sm_rp_ud); |
| 1263 | |
Pau Espin Pedrol | 2e21a68 | 2021-06-04 16:45:44 +0200 | [diff] [blame] | 1264 | rate_ctr_inc(rate_ctr_group_get_ctr(net->msc_ctrs, MSC_CTR_SMS_DELIVERED)); |
Vadim Yanitskiy | 82cc8a5 | 2018-11-15 01:05:53 +0700 | [diff] [blame] | 1265 | |
| 1266 | return gsm411_rp_sendmsg(&trans->sms.smr_inst, msg, |
| 1267 | GSM411_MT_RP_DATA_MT, trans->sms.sm_rp_mr, |
| 1268 | GSM411_SM_RL_DATA_REQ); |
| 1269 | } |
| 1270 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1271 | /* Entry point for incoming GSM48_PDISC_SMS from abis_rsl.c */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1272 | int gsm0411_rcv_sms(struct msc_a *msc_a, struct msgb *msg) |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 1273 | { |
| 1274 | struct gsm48_hdr *gh = msgb_l3(msg); |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 1275 | uint8_t msg_type = gh->msg_type; |
Neels Hofmeyr | 961bd0b | 2016-03-14 16:13:25 +0100 | [diff] [blame] | 1276 | uint8_t transaction_id = gsm48_hdr_trans_id_flip_ti(gh); |
Vadim Yanitskiy | cfd058d | 2019-01-23 23:34:31 +0700 | [diff] [blame] | 1277 | struct gsm411_rp_hdr *rph = (struct gsm411_rp_hdr *) gh->data; |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1278 | struct gsm_trans *trans; |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1279 | int new_trans = 0; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 1280 | int rc = 0; |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1281 | struct vlr_subscr *vsub = msc_a_vsub(msc_a); |
| 1282 | struct gsm_network *net = msc_a_net(msc_a); |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 1283 | |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1284 | trans = trans_find_by_id(msc_a, TRANS_SMS, transaction_id); |
Holger Hans Peter Freyther | ba36bf4 | 2013-01-13 16:23:36 +0100 | [diff] [blame] | 1285 | |
| 1286 | /* |
| 1287 | * A transaction we created but don't know about? |
| 1288 | */ |
| 1289 | if (!trans && (transaction_id & 0x8) == 0) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1290 | LOG_TRANS(trans, LOGL_ERROR, "trans_id=%x allocated by us but known " |
Holger Hans Peter Freyther | ba36bf4 | 2013-01-13 16:23:36 +0100 | [diff] [blame] | 1291 | "to us anymore. We are ignoring it, maybe a CP-ERROR " |
| 1292 | "from a MS?\n", |
| 1293 | transaction_id); |
| 1294 | return -EINVAL; |
| 1295 | } |
| 1296 | |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1297 | if (!trans) { |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1298 | new_trans = 1; |
| 1299 | trans = gsm411_trans_init(net, vsub, msc_a, transaction_id, true); |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1300 | if (!trans) { |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1301 | /* FIXME: send some error message */ |
| 1302 | return -ENOMEM; |
| 1303 | } |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1304 | |
Vadim Yanitskiy | cfd058d | 2019-01-23 23:34:31 +0700 | [diff] [blame] | 1305 | trans->sms.sm_rp_mr = rph->msg_ref; /* SM-RP Message Reference */ |
Harald Welte | 0e2fa5d | 2018-04-09 16:35:01 +0200 | [diff] [blame] | 1306 | trans->dlci = OMSC_LINKID_CB(msg); /* DLCI as received from BSC */ |
Harald Welte | f3efc59 | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1307 | } |
| 1308 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1309 | LOG_TRANS(trans, LOGL_DEBUG, "receiving SMS message %s\n", |
| 1310 | gsm48_pdisc_msgtype_name(gsm48_hdr_pdisc(gh), gsm48_hdr_msg_type(gh))); |
| 1311 | |
Vadim Yanitskiy | 03e8754 | 2019-04-14 18:34:18 +0700 | [diff] [blame] | 1312 | /* According to section 5.3.4, due to structure of message flow on |
| 1313 | * SAPI 0 and 3 it is possible that the CP-ACK of a short message |
| 1314 | * transfer might not be received. In this case the reception of |
| 1315 | * CP-DATA may be interpreted as the reception of the awaited |
| 1316 | * CP-ACK (implicit) and CP-DATA message. */ |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1317 | if (trans->sms.smc_inst.cp_state == GSM411_CPS_IDLE |
Vadim Yanitskiy | 03e8754 | 2019-04-14 18:34:18 +0700 | [diff] [blame] | 1318 | && msg_type == GSM411_MT_CP_DATA) { |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1319 | int i; |
| 1320 | struct gsm_trans *ptrans; |
Sylvain Munaut | 258e2f9 | 2009-12-24 16:47:08 +0100 | [diff] [blame] | 1321 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1322 | /* Scan through all remote initiated transactions */ |
| 1323 | for (i=8; i<15; i++) { |
| 1324 | if (i == transaction_id) |
| 1325 | continue; |
Sylvain Munaut | 258e2f9 | 2009-12-24 16:47:08 +0100 | [diff] [blame] | 1326 | |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1327 | ptrans = trans_find_by_id(msc_a, TRANS_SMS, i); |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1328 | if (!ptrans) |
| 1329 | continue; |
Sylvain Munaut | 258e2f9 | 2009-12-24 16:47:08 +0100 | [diff] [blame] | 1330 | |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1331 | LOG_TRANS(ptrans, LOGL_DEBUG, "Implicit CP-ACK for trans_id=%x\n", i); |
Sylvain Munaut | 258e2f9 | 2009-12-24 16:47:08 +0100 | [diff] [blame] | 1332 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1333 | /* Finish it for good */ |
| 1334 | trans_free(ptrans); |
Sylvain Munaut | 258e2f9 | 2009-12-24 16:47:08 +0100 | [diff] [blame] | 1335 | } |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 1336 | } |
| 1337 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1338 | gsm411_smc_recv(&trans->sms.smc_inst, |
| 1339 | (new_trans) ? GSM411_MMSMS_EST_IND : GSM411_MMSMS_DATA_IND, |
| 1340 | msg, msg_type); |
| 1341 | |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 1342 | return rc; |
| 1343 | } |
| 1344 | |
Harald Welte (local) | 86b1717 | 2009-08-14 14:52:17 +0200 | [diff] [blame] | 1345 | void _gsm411_sms_trans_free(struct gsm_trans *trans) |
| 1346 | { |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1347 | /* cleanup SMS instance */ |
Andreas Eversberg | bc6c43f | 2011-10-28 11:11:13 +0200 | [diff] [blame] | 1348 | gsm411_smr_clear(&trans->sms.smr_inst); |
| 1349 | trans->sms.smr_inst.rl_recv = NULL; |
| 1350 | trans->sms.smr_inst.mn_send = NULL; |
| 1351 | |
Andreas Eversberg | f7396ea | 2011-10-28 04:07:07 +0200 | [diff] [blame] | 1352 | gsm411_smc_clear(&trans->sms.smc_inst); |
| 1353 | trans->sms.smc_inst.mn_recv = NULL; |
| 1354 | trans->sms.smc_inst.mm_send = NULL; |
| 1355 | |
Holger Hans Peter Freyther | cea722b | 2010-06-15 12:29:37 +0800 | [diff] [blame] | 1356 | if (trans->sms.sms) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1357 | LOG_TRANS(trans, LOGL_ERROR, "Freeing transaction that still contains an SMS -- discarding\n"); |
Holger Hans Peter Freyther | 04144c1 | 2010-12-24 10:15:55 +0100 | [diff] [blame] | 1358 | 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] | 1359 | sms_free(trans->sms.sms); |
| 1360 | trans->sms.sms = NULL; |
| 1361 | } |
Harald Welte (local) | 86b1717 | 2009-08-14 14:52:17 +0200 | [diff] [blame] | 1362 | } |
| 1363 | |
Harald Welte | 2483f1b | 2016-06-19 18:06:02 +0200 | [diff] [blame] | 1364 | /* Process incoming SAPI N-REJECT from BSC */ |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1365 | void gsm411_sapi_n_reject(struct msc_a *msc_a) |
Holger Hans Peter Freyther | 6a3d765 | 2010-06-15 12:03:10 +0800 | [diff] [blame] | 1366 | { |
Holger Hans Peter Freyther | 79eff7e | 2010-12-27 23:25:53 +0100 | [diff] [blame] | 1367 | struct gsm_network *net; |
Holger Hans Peter Freyther | 6a3d765 | 2010-06-15 12:03:10 +0800 | [diff] [blame] | 1368 | struct gsm_trans *trans, *tmp; |
| 1369 | |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1370 | net = msc_a_net(msc_a); |
Holger Hans Peter Freyther | 79eff7e | 2010-12-27 23:25:53 +0100 | [diff] [blame] | 1371 | |
Holger Hans Peter Freyther | f76ed2d | 2013-12-27 22:47:09 +0100 | [diff] [blame] | 1372 | llist_for_each_entry_safe(trans, tmp, &net->trans_list, entry) { |
| 1373 | struct gsm_sms *sms; |
Holger Hans Peter Freyther | 6a3d765 | 2010-06-15 12:03:10 +0800 | [diff] [blame] | 1374 | |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1375 | if (trans->msc_a != msc_a) |
Holger Hans Peter Freyther | f76ed2d | 2013-12-27 22:47:09 +0100 | [diff] [blame] | 1376 | continue; |
Neels Hofmeyr | c4628a3 | 2018-12-07 14:47:34 +0100 | [diff] [blame] | 1377 | if (trans->type != TRANS_SMS) |
Holger Hans Peter Freyther | f76ed2d | 2013-12-27 22:47:09 +0100 | [diff] [blame] | 1378 | continue; |
| 1379 | |
| 1380 | sms = trans->sms.sms; |
| 1381 | if (!sms) { |
Neels Hofmeyr | ff7074a | 2019-02-28 05:50:06 +0100 | [diff] [blame] | 1382 | LOG_TRANS(trans, LOGL_ERROR, "SAPI Reject but no SMS.\n"); |
Holger Hans Peter Freyther | f76ed2d | 2013-12-27 22:47:09 +0100 | [diff] [blame] | 1383 | continue; |
Holger Hans Peter Freyther | 6a3d765 | 2010-06-15 12:03:10 +0800 | [diff] [blame] | 1384 | } |
Holger Hans Peter Freyther | f76ed2d | 2013-12-27 22:47:09 +0100 | [diff] [blame] | 1385 | |
| 1386 | send_signal(S_SMS_UNKNOWN_ERROR, trans, sms, 0); |
| 1387 | sms_free(sms); |
| 1388 | trans->sms.sms = NULL; |
| 1389 | trans_free(trans); |
| 1390 | } |
Holger Hans Peter Freyther | 6a3d765 | 2010-06-15 12:03:10 +0800 | [diff] [blame] | 1391 | } |