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> |
| 6 | * |
| 7 | * All Rights Reserved |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License along |
| 20 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 21 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | |
| 26 | #include <stdio.h> |
| 27 | #include <stdlib.h> |
| 28 | #include <string.h> |
| 29 | #include <errno.h> |
| 30 | #include <netinet/in.h> |
| 31 | |
| 32 | #include <openbsc/msgb.h> |
| 33 | #include <openbsc/debug.h> |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 34 | #include <openbsc/gsm_data.h> |
| 35 | #include <openbsc/gsm_subscriber.h> |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 36 | #include <openbsc/gsm_04_11.h> |
| 37 | #include <openbsc/gsm_04_08.h> |
Holger Freyther | 76c9569 | 2009-02-17 20:31:30 +0000 | [diff] [blame] | 38 | #include <openbsc/gsm_utils.h> |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 39 | #include <openbsc/abis_rsl.h> |
Holger Freyther | 9b17776 | 2009-02-16 19:07:18 +0000 | [diff] [blame] | 40 | #include <openbsc/signal.h> |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 41 | |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 42 | #define GSM411_ALLOC_SIZE 1024 |
| 43 | #define GSM411_ALLOC_HEADROOM 128 |
| 44 | |
Holger Freyther | a553d09 | 2009-01-04 20:16:25 +0000 | [diff] [blame] | 45 | struct msgb *gsm411_msgb_alloc(void) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 46 | { |
| 47 | return msgb_alloc_headroom(GSM411_ALLOC_SIZE, GSM411_ALLOC_HEADROOM); |
| 48 | } |
| 49 | |
Holger Freyther | a553d09 | 2009-01-04 20:16:25 +0000 | [diff] [blame] | 50 | int gsm0411_sendmsg(struct msgb *msg) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 51 | { |
| 52 | if (msg->lchan) |
| 53 | msg->trx = msg->lchan->ts->trx; |
| 54 | |
| 55 | msg->l3h = msg->data; |
| 56 | |
| 57 | return rsl_data_request(msg, 0); |
| 58 | } |
| 59 | |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 60 | |
Holger Freyther | ca362a6 | 2009-01-04 21:05:01 +0000 | [diff] [blame] | 61 | #if 0 |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 62 | static u_int8_t gsm0411_tpdu_from_sms(u_int8_t *tpdu, struct sms_deliver *sms) |
| 63 | { |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 64 | } |
Holger Freyther | ca362a6 | 2009-01-04 21:05:01 +0000 | [diff] [blame] | 65 | #endif |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 66 | |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 67 | static int gsm411_sms_submit_from_msgb(struct msgb *msg) |
| 68 | { |
| 69 | u_int8_t *smsp = msgb_sms(msg); |
| 70 | struct sms_submit *sms; |
| 71 | |
| 72 | sms = malloc(sizeof(*sms)); |
| 73 | sms->mti = *smsp & 0x03; |
| 74 | sms->mms = !!(*smsp & 0x04); |
| 75 | sms->vpf = (*smsp & 0x18) >> 3; |
| 76 | sms->sri = !!(*smsp & 0x20); |
| 77 | sms->udhi= !!(*smsp & 0x40); |
| 78 | sms->rp = !!(*smsp & 0x80); |
| 79 | |
| 80 | smsp++; |
| 81 | sms->msg_ref = *smsp++; |
| 82 | |
| 83 | /* Skip destination address for now */ |
| 84 | smsp += 2 + *smsp/2 + *smsp%2; |
| 85 | |
| 86 | sms->pid = *smsp++; |
| 87 | sms->dcs = *smsp++; |
| 88 | switch (sms->vpf) |
| 89 | { |
| 90 | case 2: /* relative */ |
| 91 | sms->vp = *smsp++; |
| 92 | break; |
| 93 | default: |
| 94 | DEBUGP(DSMS, "SMS Validity period not implemented: 0x%02x\n", |
| 95 | sms->vpf); |
| 96 | } |
| 97 | sms->ud_len = *smsp++; |
| 98 | |
Holger Freyther | 76c9569 | 2009-02-17 20:31:30 +0000 | [diff] [blame] | 99 | sms->user_data = (u_int8_t *)gsm_7bit_decode(smsp, sms->ud_len); |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 100 | |
| 101 | DEBUGP(DSMS, "SMS:\nMTI: 0x%02x, VPF: 0x%02x, MR: 0x%02x\n" |
| 102 | "PID: 0x%02x, DCS: 0x%02x, UserDataLength: 0x%02x\n" |
| 103 | "UserData: \"%s\"\n", sms->mti, sms->vpf, sms->msg_ref, |
| 104 | sms->pid, sms->dcs, sms->ud_len, sms->user_data); |
| 105 | |
Harald Welte | 595ad7b | 2009-02-16 22:05:44 +0000 | [diff] [blame] | 106 | dispatch_signal(SS_SMS, 0, sms); |
Holger Freyther | 9b17776 | 2009-02-16 19:07:18 +0000 | [diff] [blame] | 107 | |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 108 | free(sms); |
| 109 | |
| 110 | return 0; |
| 111 | } |
| 112 | |
Daniel Willmann | 9dfbf25 | 2008-12-29 03:24:29 +0000 | [diff] [blame] | 113 | static int gsm411_send_rp_ack(struct gsm_lchan *lchan, u_int8_t trans_id, |
| 114 | u_int8_t msg_ref) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 115 | { |
| 116 | struct msgb *msg = gsm411_msgb_alloc(); |
| 117 | struct gsm48_hdr *gh; |
| 118 | struct gsm411_rp_hdr *rp; |
| 119 | |
| 120 | msg->lchan = lchan; |
| 121 | |
| 122 | gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh)); |
Daniel Willmann | aecbbed | 2008-12-29 03:45:50 +0000 | [diff] [blame] | 123 | // Outgoing needs the highest bit set |
| 124 | gh->proto_discr = GSM48_PDISC_SMS | trans_id<<4 | 0x80; |
| 125 | gh->msg_type = GSM411_MT_CP_DATA; |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 126 | |
| 127 | rp = (struct gsm411_rp_hdr *)msgb_put(msg, sizeof(*rp)); |
Daniel Willmann | aecbbed | 2008-12-29 03:45:50 +0000 | [diff] [blame] | 128 | rp->len = 2; |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 129 | rp->msg_type = GSM411_MT_RP_ACK_MT; |
| 130 | rp->msg_ref = msg_ref; |
| 131 | |
| 132 | DEBUGP(DSMS, "TX: SMS RP ACK\n"); |
| 133 | |
| 134 | return gsm0411_sendmsg(msg); |
| 135 | } |
| 136 | |
Holger Freyther | ca362a6 | 2009-01-04 21:05:01 +0000 | [diff] [blame] | 137 | #if 0 |
Daniel Willmann | 9dfbf25 | 2008-12-29 03:24:29 +0000 | [diff] [blame] | 138 | static int gsm411_send_rp_error(struct gsm_lchan *lchan, u_int8_t trans_id, |
| 139 | u_int8_t msg_ref) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 140 | { |
| 141 | struct msgb *msg = gsm411_msgb_alloc(); |
| 142 | struct gsm48_hdr *gh; |
| 143 | struct gsm411_rp_hdr *rp; |
| 144 | |
| 145 | msg->lchan = lchan; |
| 146 | |
| 147 | gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh)); |
Daniel Willmann | aecbbed | 2008-12-29 03:45:50 +0000 | [diff] [blame] | 148 | // Outgoing needs the highest bit set |
| 149 | gh->proto_discr = GSM48_PDISC_SMS | trans_id<<4 | 0x80; |
| 150 | gh->msg_type = GSM411_MT_CP_DATA; |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 151 | |
| 152 | rp = (struct gsm411_rp_hdr *)msgb_put(msg, sizeof(*rp)); |
| 153 | rp->msg_type = GSM411_MT_RP_ERROR_MT; |
| 154 | rp->msg_ref = msg_ref; |
| 155 | |
| 156 | DEBUGP(DSMS, "TX: SMS RP ERROR\n"); |
| 157 | |
| 158 | return gsm0411_sendmsg(msg); |
| 159 | } |
Holger Freyther | ca362a6 | 2009-01-04 21:05:01 +0000 | [diff] [blame] | 160 | #endif |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 161 | |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 162 | static int gsm411_cp_data(struct msgb *msg) |
| 163 | { |
| 164 | struct gsm48_hdr *gh = msgb_l3(msg); |
| 165 | int rc = 0; |
| 166 | |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 167 | struct gsm411_rp_hdr *rp_data = (struct gsm411_rp_hdr*)&gh->data; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 168 | u_int8_t msg_type = rp_data->msg_type & 0x07; |
| 169 | |
| 170 | switch (msg_type) { |
| 171 | case GSM411_MT_RP_DATA_MO: |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 172 | DEBUGP(DSMS, "SMS RP-DATA (MO)\n"); |
| 173 | /* Skip SMSC no and RP-UD length */ |
| 174 | msg->smsh = &rp_data->data[1] + rp_data->data[1] + 2; |
| 175 | gsm411_sms_submit_from_msgb(msg); |
Daniel Willmann | 9dfbf25 | 2008-12-29 03:24:29 +0000 | [diff] [blame] | 176 | gsm411_send_rp_ack(msg->lchan, (gh->proto_discr & 0xf0)>>4, rp_data->msg_ref); |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 177 | break; |
| 178 | default: |
| 179 | DEBUGP(DSMS, "Unimplemented RP type 0x%02x\n", msg_type); |
| 180 | break; |
| 181 | } |
| 182 | |
| 183 | return rc; |
| 184 | } |
| 185 | |
| 186 | int gsm0411_rcv_sms(struct msgb *msg) |
| 187 | { |
| 188 | struct gsm48_hdr *gh = msgb_l3(msg); |
| 189 | u_int8_t msg_type = gh->msg_type; |
| 190 | int rc = 0; |
| 191 | |
| 192 | DEBUGP(DSMS, "SMS Message\n"); |
| 193 | |
| 194 | switch(msg_type) { |
| 195 | case GSM411_MT_CP_DATA: |
| 196 | DEBUGP(DSMS, "SMS CP-DATA\n"); |
| 197 | rc = gsm411_cp_data(msg); |
| 198 | break; |
| 199 | case GSM411_MT_CP_ACK: |
Daniel Willmann | bb16e8e | 2008-12-29 03:53:50 +0000 | [diff] [blame] | 200 | DEBUGP(DSMS, "SMS CP-ACK\n"); |
| 201 | break; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 202 | case GSM411_MT_CP_ERROR: |
Daniel Willmann | bb16e8e | 2008-12-29 03:53:50 +0000 | [diff] [blame] | 203 | DEBUGP(DSMS, "SMS CP-ERROR, cause 0x%02x\n", gh->data[0]); |
| 204 | break; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 205 | default: |
| 206 | DEBUGP(DSMS, "Unimplemented CP msg_type: 0x%02x\n", msg_type); |
| 207 | break; |
| 208 | } |
| 209 | |
| 210 | |
| 211 | return rc; |
| 212 | } |
| 213 | |
Daniel Willmann | 3b3f001 | 2008-12-30 13:56:46 +0000 | [diff] [blame] | 214 | /* Test TPDU - 25c3 welcome */ |
Harald Welte | 8c2e36e | 2008-12-30 15:00:14 +0000 | [diff] [blame] | 215 | #if 0 |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 216 | static u_int8_t tpdu_test[] = { |
Daniel Willmann | 3b3f001 | 2008-12-30 13:56:46 +0000 | [diff] [blame] | 217 | 0x04, 0x04, 0x81, 0x32, 0x24, 0x00, 0x00, 0x80, 0x21, 0x92, 0x90, 0x32, |
| 218 | 0x24, 0x40, 0x4D, 0xB2, 0xDA, 0x70, 0xD6, 0x9A, 0x97, 0xE5, 0xF6, 0xF4, |
| 219 | 0xB8, 0x0C, 0x0A, 0xBB, 0xDD, 0xEF, 0xBA, 0x7B, 0x5C, 0x6E, 0x97, 0xDD, |
| 220 | 0x74, 0x1D, 0x08, 0xCA, 0x2E, 0x87, 0xE7, 0x65, 0x50, 0x98, 0x4E, 0x2F, |
| 221 | 0xBB, 0xC9, 0x20, 0x3A, 0xBA, 0x0C, 0x3A, 0x4E, 0x9B, 0x20, 0x7A, 0x98, |
| 222 | 0xBD, 0x06, 0x85, 0xE9, 0xA0, 0x58, 0x4C, 0x37, 0x83, 0x81, 0xD2, 0x6E, |
| 223 | 0xD0, 0x34, 0x1C, 0x66, 0x83, 0x62, 0x21, 0x90, 0xAE, 0x95, 0x02 |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 224 | }; |
Harald Welte | 8c2e36e | 2008-12-30 15:00:14 +0000 | [diff] [blame] | 225 | #else |
Daniel Willmann | 3b3f001 | 2008-12-30 13:56:46 +0000 | [diff] [blame] | 226 | /* Test TPDU - ALL YOUR */ |
| 227 | static u_int8_t tpdu_test[] = { |
| 228 | 0x04, 0x04, 0x81, 0x32, 0x24, 0x00, 0x00, 0x80, 0x21, 0x03, 0x41, 0x24, |
| 229 | 0x32, 0x40, 0x1F, 0x41, 0x26, 0x13, 0x94, 0x7D, 0x56, 0xA5, 0x20, 0x28, |
| 230 | 0xF2, 0xE9, 0x2C, 0x82, 0x82, 0xD2, 0x22, 0x48, 0x58, 0x64, 0x3E, 0x9D, |
| 231 | 0x47, 0x10, 0xF5, 0x09, 0xAA, 0x4E, 0x01 |
Daniel Willmann | e2a728d | 2008-12-30 14:03:09 +0000 | [diff] [blame] | 232 | }; |
Harald Welte | 8c2e36e | 2008-12-30 15:00:14 +0000 | [diff] [blame] | 233 | #endif |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 234 | |
| 235 | int gsm0411_send_sms(struct gsm_lchan *lchan, struct sms_deliver *sms) |
| 236 | { |
| 237 | struct msgb *msg = gsm411_msgb_alloc(); |
| 238 | struct gsm48_hdr *gh; |
| 239 | struct gsm411_rp_hdr *rp; |
Holger Freyther | ca362a6 | 2009-01-04 21:05:01 +0000 | [diff] [blame] | 240 | u_int8_t *data; |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 241 | |
| 242 | msg->lchan = lchan; |
| 243 | |
| 244 | gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh)); |
| 245 | gh->proto_discr = GSM48_PDISC_SMS; |
| 246 | gh->msg_type = GSM411_MT_CP_DATA; |
| 247 | |
| 248 | rp = (struct gsm411_rp_hdr *)msgb_put(msg, sizeof(*rp)); |
Daniel Willmann | a3e2984 | 2008-12-29 16:03:54 +0000 | [diff] [blame] | 249 | rp->len = sizeof(tpdu_test) + 10; |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 250 | rp->msg_type = GSM411_MT_RP_DATA_MT; |
| 251 | rp->msg_ref = 42; /* FIXME: Choose randomly */ |
Daniel Willmann | fad5d0d | 2008-12-29 16:04:14 +0000 | [diff] [blame] | 252 | /* Hardcode OA for now */ |
Daniel Willmann | a3e2984 | 2008-12-29 16:03:54 +0000 | [diff] [blame] | 253 | data = (u_int8_t *)msgb_put(msg, 8); |
| 254 | data[0] = 0x07; |
| 255 | data[1] = 0x91; |
| 256 | data[2] = 0x44; |
| 257 | data[3] = 0x77; |
| 258 | data[4] = 0x58; |
| 259 | data[5] = 0x10; |
| 260 | data[6] = 0x06; |
| 261 | data[7] = 0x50; |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 262 | data = (u_int8_t *)msgb_put(msg, 1); |
| 263 | data[0] = 0; |
| 264 | |
| 265 | /* FIXME: Hardcoded for now */ |
Daniel Willmann | 4a1e879 | 2008-12-29 06:23:56 +0000 | [diff] [blame] | 266 | //smslen = gsm0411_tpdu_from_sms(tpdu, sms); |
| 267 | |
| 268 | /* RPDU length */ |
| 269 | data = (u_int8_t *)msgb_put(msg, 1); |
| 270 | data[0] = sizeof(tpdu_test); |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 271 | |
| 272 | data = (u_int8_t *)msgb_put(msg, sizeof(tpdu_test)); |
| 273 | |
| 274 | //memcpy(data, tpdu, smslen); |
| 275 | memcpy(data, tpdu_test, sizeof(tpdu_test)); |
| 276 | |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 277 | DEBUGP(DSMS, "TX: SMS SUBMIT\n"); |
| 278 | |
| 279 | return gsm0411_sendmsg(msg); |
| 280 | } |
| 281 | |