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> |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 7 | * |
| 8 | * All Rights Reserved |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License along |
| 21 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 22 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 23 | * |
| 24 | */ |
| 25 | |
| 26 | |
| 27 | #include <stdio.h> |
| 28 | #include <stdlib.h> |
| 29 | #include <string.h> |
| 30 | #include <errno.h> |
| 31 | #include <netinet/in.h> |
| 32 | |
| 33 | #include <openbsc/msgb.h> |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 34 | #include <openbsc/tlv.h> |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 35 | #include <openbsc/debug.h> |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 36 | #include <openbsc/gsm_data.h> |
| 37 | #include <openbsc/gsm_subscriber.h> |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 38 | #include <openbsc/gsm_04_11.h> |
| 39 | #include <openbsc/gsm_04_08.h> |
Holger Freyther | 76c9569 | 2009-02-17 20:31:30 +0000 | [diff] [blame] | 40 | #include <openbsc/gsm_utils.h> |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 41 | #include <openbsc/abis_rsl.h> |
Holger Freyther | 9b17776 | 2009-02-16 19:07:18 +0000 | [diff] [blame] | 42 | #include <openbsc/signal.h> |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 43 | #include <openbsc/db.h> |
Harald Welte | 2cf161b | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 44 | #include <openbsc/talloc.h> |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 45 | |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 46 | #define GSM411_ALLOC_SIZE 1024 |
| 47 | #define GSM411_ALLOC_HEADROOM 128 |
| 48 | |
Harald Welte | 2cf161b | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 49 | static void *tall_sms_ctx; |
| 50 | static void *tall_gsms_ctx; |
| 51 | |
Holger Freyther | a553d09 | 2009-01-04 20:16:25 +0000 | [diff] [blame] | 52 | struct msgb *gsm411_msgb_alloc(void) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 53 | { |
Harald Welte | 966636f | 2009-06-26 19:39:35 +0200 | [diff] [blame] | 54 | return msgb_alloc_headroom(GSM411_ALLOC_SIZE, GSM411_ALLOC_HEADROOM, |
| 55 | "GSM 04.11"); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 56 | } |
| 57 | |
Holger Freyther | a553d09 | 2009-01-04 20:16:25 +0000 | [diff] [blame] | 58 | int gsm0411_sendmsg(struct msgb *msg) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 59 | { |
| 60 | if (msg->lchan) |
| 61 | msg->trx = msg->lchan->ts->trx; |
| 62 | |
| 63 | msg->l3h = msg->data; |
| 64 | |
| 65 | return rsl_data_request(msg, 0); |
| 66 | } |
| 67 | |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 68 | |
Holger Freyther | ca362a6 | 2009-01-04 21:05:01 +0000 | [diff] [blame] | 69 | #if 0 |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 70 | static u_int8_t gsm0411_tpdu_from_sms(u_int8_t *tpdu, struct sms_deliver *sms) |
| 71 | { |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 72 | } |
Holger Freyther | ca362a6 | 2009-01-04 21:05:01 +0000 | [diff] [blame] | 73 | #endif |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 74 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 75 | static unsigned long gsm340_validity_period(struct sms_submit *sms) |
| 76 | { |
| 77 | u_int8_t vp; |
| 78 | unsigned long minutes; |
| 79 | |
| 80 | switch (sms->vpf) { |
| 81 | case GSM340_TP_VPF_RELATIVE: |
| 82 | /* Chapter 9.2.3.12.1 */ |
| 83 | vp = *(sms->vp); |
| 84 | if (vp <= 143) |
| 85 | minutes = vp + 1 * 5; |
| 86 | else if (vp <= 167) |
| 87 | minutes = 12*60 + (vp-143) * 30; |
| 88 | else if (vp <= 196) |
| 89 | minutes = vp-166 * 60 * 24; |
| 90 | else |
| 91 | minutes = vp-192 * 60 * 24 * 7; |
| 92 | break; |
| 93 | case GSM340_TP_VPF_ABSOLUTE: |
| 94 | /* Chapter 9.2.3.12.2 */ |
| 95 | /* FIXME: like service center time stamp */ |
| 96 | DEBUGP(DSMS, "VPI absolute not implemented yet\n"); |
| 97 | break; |
| 98 | case GSM340_TP_VPF_ENHANCED: |
| 99 | /* Chapter 9.2.3.12.3 */ |
| 100 | /* FIXME: implementation */ |
| 101 | DEBUGP(DSMS, "VPI enhanced not implemented yet\n"); |
| 102 | break; |
| 103 | } |
| 104 | return minutes; |
| 105 | } |
| 106 | |
| 107 | /* determine coding alphabet dependent on GSM 03.38 Section 4 DCS */ |
| 108 | enum sms_alphabet gsm338_get_sms_alphabet(u_int8_t dcs) |
| 109 | { |
| 110 | u_int8_t cgbits = dcs >> 4; |
| 111 | enum sms_alphabet alpha = DCS_NONE; |
| 112 | |
| 113 | if ((cgbits & 0xc) == 0) { |
| 114 | if (cgbits & 2) |
| 115 | DEBUGP(DSMS, "Compressed SMS not supported yet\n"); |
| 116 | |
| 117 | switch (dcs & 3) { |
| 118 | case 0: |
| 119 | alpha = DCS_7BIT_DEFAULT; |
| 120 | break; |
| 121 | case 1: |
| 122 | alpha = DCS_8BIT_DATA; |
| 123 | break; |
| 124 | case 2: |
| 125 | alpha = DCS_UCS2; |
| 126 | break; |
| 127 | } |
| 128 | } else if (cgbits == 0xc || cgbits == 0xd) |
| 129 | alpha = DCS_7BIT_DEFAULT; |
| 130 | else if (cgbits == 0xe) |
| 131 | alpha = DCS_UCS2; |
| 132 | else if (cgbits == 0xf) { |
| 133 | if (dcs & 4) |
| 134 | alpha = DCS_8BIT_DATA; |
| 135 | else |
| 136 | alpha = DCS_7BIT_DEFAULT; |
| 137 | } |
| 138 | |
| 139 | return alpha; |
| 140 | } |
| 141 | |
| 142 | static int gsm340_rx_sms_submit(struct msgb *msg, struct sms_submit *sms, |
| 143 | struct gsm_sms *gsms) |
| 144 | { |
| 145 | if (db_sms_store(gsms) != 0) { |
| 146 | DEBUGP(DSMS, "Failed to store SMS in Database\n"); |
Harald Welte | 2cf161b | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 147 | talloc_free(sms); |
| 148 | talloc_free(gsms); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 149 | return -EIO; |
| 150 | } |
| 151 | return 0; |
| 152 | } |
| 153 | |
| 154 | /* process an incoming TPDU (called from RP-DATA) */ |
| 155 | static int gsm340_rx_tpdu(struct msgb *msg) |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 156 | { |
| 157 | u_int8_t *smsp = msgb_sms(msg); |
| 158 | struct sms_submit *sms; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 159 | struct gsm_sms *gsms; |
| 160 | u_int8_t da_len_bytes; |
| 161 | u_int8_t address_lv[12]; /* according to 03.40 / 9.1.2.5 */ |
| 162 | int rc = 0; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 163 | |
Harald Welte | 2cf161b | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 164 | if (!tall_sms_ctx) |
| 165 | tall_sms_ctx = talloc_named_const(tall_bsc_ctx, 1, |
| 166 | "sms_submit"); |
| 167 | |
| 168 | sms = talloc(tall_sms_ctx, struct sms_submit); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 169 | if (!sms) |
| 170 | return -ENOMEM; |
| 171 | memset(sms, 0, sizeof(*sms)); |
| 172 | |
Harald Welte | 2cf161b | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 173 | if (!tall_gsms_ctx) |
| 174 | tall_gsms_ctx = talloc_named_const(tall_bsc_ctx, 1, |
| 175 | "sms"); |
| 176 | |
| 177 | gsms = talloc(tall_gsms_ctx, struct gsm_sms); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 178 | if (!gsms) { |
Harald Welte | 2cf161b | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 179 | talloc_free(sms); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 180 | return -ENOMEM; |
| 181 | } |
| 182 | memset(gsms, 0, sizeof(*gsms)); |
| 183 | |
| 184 | /* invert those fields where 0 means active/present */ |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 185 | sms->mti = *smsp & 0x03; |
| 186 | sms->mms = !!(*smsp & 0x04); |
| 187 | sms->vpf = (*smsp & 0x18) >> 3; |
| 188 | sms->sri = !!(*smsp & 0x20); |
| 189 | sms->udhi= !!(*smsp & 0x40); |
| 190 | sms->rp = !!(*smsp & 0x80); |
| 191 | |
| 192 | smsp++; |
| 193 | sms->msg_ref = *smsp++; |
| 194 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 195 | /* length in bytes of the destination address */ |
| 196 | da_len_bytes = 2 + *smsp/2 + *smsp%2; |
| 197 | if (da_len_bytes > 12) { |
| 198 | DEBUGP(DSMS, "Destination Address > 12 bytes ?!?\n"); |
| 199 | rc = -EIO; |
| 200 | goto out; |
| 201 | } |
Harald Welte | 3cfdb22 | 2009-06-12 02:42:11 +0800 | [diff] [blame] | 202 | memset(address_lv, 0, sizeof(address_lv)); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 203 | memcpy(address_lv, smsp, da_len_bytes); |
| 204 | /* mangle first byte to reflect length in bytes, not digits */ |
Harald Welte | 3cfdb22 | 2009-06-12 02:42:11 +0800 | [diff] [blame] | 205 | address_lv[0] = da_len_bytes - 1; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 206 | /* convert to real number */ |
Harald Welte | 3cfdb22 | 2009-06-12 02:42:11 +0800 | [diff] [blame] | 207 | decode_bcd_number(sms->dest_addr, sizeof(sms->dest_addr), address_lv, 1); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 208 | |
| 209 | smsp += da_len_bytes; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 210 | |
| 211 | sms->pid = *smsp++; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 212 | |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 213 | sms->dcs = *smsp++; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 214 | sms->alphabet = gsm338_get_sms_alphabet(sms->dcs); |
| 215 | |
| 216 | switch (sms->vpf) { |
| 217 | case GSM340_TP_VPF_RELATIVE: |
| 218 | sms->vp = smsp++; |
| 219 | break; |
| 220 | case GSM340_TP_VPF_ABSOLUTE: |
| 221 | case GSM340_TP_VPF_ENHANCED: |
| 222 | sms->vp = smsp; |
| 223 | smsp += 7; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 224 | break; |
| 225 | default: |
| 226 | DEBUGP(DSMS, "SMS Validity period not implemented: 0x%02x\n", |
| 227 | sms->vpf); |
| 228 | } |
| 229 | sms->ud_len = *smsp++; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 230 | if (sms->ud_len) |
| 231 | sms->user_data = smsp; |
| 232 | else |
| 233 | sms->user_data = NULL; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 234 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 235 | if (sms->ud_len) { |
| 236 | switch (sms->alphabet) { |
| 237 | case DCS_7BIT_DEFAULT: |
| 238 | gsm_7bit_decode(sms->decoded, smsp, sms->ud_len); |
| 239 | break; |
| 240 | case DCS_8BIT_DATA: |
| 241 | case DCS_UCS2: |
| 242 | case DCS_NONE: |
| 243 | memcpy(sms->decoded, sms->user_data, sms->ud_len); |
| 244 | break; |
| 245 | } |
| 246 | } |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 247 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 248 | DEBUGP(DSMS, "SMS:\nMTI: 0x%02x, VPF: 0x%02x, MR: 0x%02x " |
| 249 | "PID: 0x%02x, DCS: 0x%02x, DA: %s, UserDataLength: 0x%02x " |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 250 | "UserData: \"%s\"\n", sms->mti, sms->vpf, sms->msg_ref, |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 251 | sms->pid, sms->dcs, sms->dest_addr, sms->ud_len, |
| 252 | sms->alphabet == DCS_7BIT_DEFAULT ? sms->decoded : hexdump(sms->user_data, sms->ud_len)); |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 253 | |
Harald Welte | 595ad7b | 2009-02-16 22:05:44 +0000 | [diff] [blame] | 254 | dispatch_signal(SS_SMS, 0, sms); |
Holger Freyther | 9b17776 | 2009-02-16 19:07:18 +0000 | [diff] [blame] | 255 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 256 | gsms->sender = msg->lchan->subscr; |
| 257 | /* FIXME: sender refcount */ |
| 258 | |
| 259 | /* determine gsms->receiver based on dialled number */ |
| 260 | gsms->receiver = subscr_get_by_extension(sms->dest_addr); |
| 261 | if (!gsms->receiver) { |
| 262 | rc = 1; /* cause 1: unknown subscriber */ |
| 263 | goto out; |
| 264 | } |
| 265 | |
| 266 | if (sms->user_data) |
| 267 | strncpy(gsms->text, sms->decoded, sizeof(gsms->text)); |
| 268 | |
| 269 | switch (sms->mti) { |
| 270 | case GSM340_SMS_SUBMIT_MS2SC: |
| 271 | /* MS is submitting a SMS */ |
| 272 | rc = gsm340_rx_sms_submit(msg, sms, gsms); |
| 273 | break; |
| 274 | case GSM340_SMS_COMMAND_MS2SC: |
| 275 | case GSM340_SMS_DELIVER_REP_MS2SC: |
| 276 | DEBUGP(DSMS, "Unimplemented MTI 0x%02x\n", sms->mti); |
| 277 | break; |
| 278 | default: |
| 279 | DEBUGP(DSMS, "Undefined MTI 0x%02x\n", sms->mti); |
| 280 | break; |
| 281 | } |
| 282 | |
| 283 | out: |
Harald Welte | 2cf161b | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 284 | talloc_free(gsms); |
| 285 | talloc_free(sms); |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 286 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 287 | return rc; |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 288 | } |
| 289 | |
Daniel Willmann | 9dfbf25 | 2008-12-29 03:24:29 +0000 | [diff] [blame] | 290 | static int gsm411_send_rp_ack(struct gsm_lchan *lchan, u_int8_t trans_id, |
| 291 | u_int8_t msg_ref) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 292 | { |
| 293 | struct msgb *msg = gsm411_msgb_alloc(); |
| 294 | struct gsm48_hdr *gh; |
| 295 | struct gsm411_rp_hdr *rp; |
| 296 | |
| 297 | msg->lchan = lchan; |
| 298 | |
| 299 | gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh)); |
Daniel Willmann | aecbbed | 2008-12-29 03:45:50 +0000 | [diff] [blame] | 300 | // Outgoing needs the highest bit set |
| 301 | gh->proto_discr = GSM48_PDISC_SMS | trans_id<<4 | 0x80; |
| 302 | gh->msg_type = GSM411_MT_CP_DATA; |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 303 | |
| 304 | rp = (struct gsm411_rp_hdr *)msgb_put(msg, sizeof(*rp)); |
Daniel Willmann | aecbbed | 2008-12-29 03:45:50 +0000 | [diff] [blame] | 305 | rp->len = 2; |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 306 | rp->msg_type = GSM411_MT_RP_ACK_MT; |
| 307 | rp->msg_ref = msg_ref; |
| 308 | |
| 309 | DEBUGP(DSMS, "TX: SMS RP ACK\n"); |
| 310 | |
| 311 | return gsm0411_sendmsg(msg); |
| 312 | } |
| 313 | |
Daniel Willmann | 9dfbf25 | 2008-12-29 03:24:29 +0000 | [diff] [blame] | 314 | static int gsm411_send_rp_error(struct gsm_lchan *lchan, u_int8_t trans_id, |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 315 | u_int8_t msg_ref, u_int8_t cause) |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 316 | { |
| 317 | struct msgb *msg = gsm411_msgb_alloc(); |
| 318 | struct gsm48_hdr *gh; |
| 319 | struct gsm411_rp_hdr *rp; |
| 320 | |
| 321 | msg->lchan = lchan; |
| 322 | |
| 323 | gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh)); |
Daniel Willmann | aecbbed | 2008-12-29 03:45:50 +0000 | [diff] [blame] | 324 | // Outgoing needs the highest bit set |
| 325 | gh->proto_discr = GSM48_PDISC_SMS | trans_id<<4 | 0x80; |
| 326 | gh->msg_type = GSM411_MT_CP_DATA; |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 327 | |
| 328 | rp = (struct gsm411_rp_hdr *)msgb_put(msg, sizeof(*rp)); |
| 329 | rp->msg_type = GSM411_MT_RP_ERROR_MT; |
| 330 | rp->msg_ref = msg_ref; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 331 | msgb_tv_put(msg, 1, cause); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 332 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 333 | DEBUGP(DSMS, "TX: SMS RP ERROR (cause %02d)\n", cause); |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 334 | |
| 335 | return gsm0411_sendmsg(msg); |
| 336 | } |
| 337 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 338 | /* Receive a 04.11 TPDU inside RP-DATA / user data */ |
| 339 | static int gsm411_rx_rp_ud(struct msgb *msg, struct gsm411_rp_hdr *rph, |
| 340 | u_int8_t src_len, u_int8_t *src, |
| 341 | u_int8_t dst_len, u_int8_t *dst, |
| 342 | u_int8_t tpdu_len, u_int8_t *tpdu) |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 343 | { |
| 344 | struct gsm48_hdr *gh = msgb_l3(msg); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 345 | u_int8_t trans_id = gh->proto_discr >> 4; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 346 | int rc = 0; |
| 347 | |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 348 | if (src_len && src) |
| 349 | DEBUGP(DSMS, "RP-DATA (MO) with SRC ?!?\n"); |
| 350 | |
| 351 | if (!dst_len || !dst || !tpdu_len || !tpdu) { |
| 352 | DEBUGP(DSMS, "RP-DATA (MO) without DST or TPDU ?!?\n"); |
| 353 | return -EIO; |
| 354 | } |
| 355 | msg->smsh = tpdu; |
| 356 | |
| 357 | DEBUGP(DSMS, "DST(%u,%s)\n", dst_len, hexdump(dst, dst_len)); |
| 358 | //return gsm411_send_rp_error(msg->lchan, trans_id, rph->msg_ref, rc); |
| 359 | |
| 360 | rc = gsm340_rx_tpdu(msg); |
| 361 | if (rc == 0) |
| 362 | return gsm411_send_rp_ack(msg->lchan, trans_id, rph->msg_ref); |
| 363 | else if (rc > 0) |
| 364 | return gsm411_send_rp_error(msg->lchan, trans_id, rph->msg_ref, rc); |
| 365 | else |
| 366 | return rc; |
| 367 | } |
| 368 | |
| 369 | /* Receive a 04.11 RP-DATA message in accordance with Section 7.3.1.2 */ |
| 370 | static int gsm411_rx_rp_data(struct msgb *msg, struct gsm411_rp_hdr *rph) |
| 371 | { |
| 372 | u_int8_t src_len, dst_len, rpud_len; |
| 373 | u_int8_t *src = NULL, *dst = NULL , *rp_ud = NULL; |
| 374 | |
| 375 | /* in the MO case, this should always be zero length */ |
| 376 | src_len = rph->data[0]; |
| 377 | if (src_len) |
| 378 | src = &rph->data[1]; |
| 379 | |
| 380 | dst_len = rph->data[1+src_len]; |
| 381 | if (dst_len) |
| 382 | dst = &rph->data[1+src_len+1]; |
| 383 | |
| 384 | rpud_len = rph->data[1+src_len+1+dst_len]; |
| 385 | if (rpud_len) |
| 386 | rp_ud = &rph->data[1+src_len+1+dst_len+1]; |
| 387 | |
| 388 | DEBUGP(DSMS, "RX_RP-DATA: src_len=%u, dst_len=%u ud_len=%u\n", src_len, dst_len, rpud_len); |
| 389 | return gsm411_rx_rp_ud(msg, rph, src_len, src, dst_len, dst, |
| 390 | rpud_len, rp_ud); |
| 391 | } |
| 392 | |
| 393 | static int gsm411_rx_cp_data(struct msgb *msg, struct gsm48_hdr *gh) |
| 394 | { |
Daniel Willmann | 471712b | 2008-12-29 01:54:02 +0000 | [diff] [blame] | 395 | struct gsm411_rp_hdr *rp_data = (struct gsm411_rp_hdr*)&gh->data; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 396 | u_int8_t msg_type = rp_data->msg_type & 0x07; |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 397 | int rc = 0; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 398 | |
| 399 | switch (msg_type) { |
| 400 | case GSM411_MT_RP_DATA_MO: |
Daniel Willmann | e0fbec8 | 2008-12-29 00:44:41 +0000 | [diff] [blame] | 401 | DEBUGP(DSMS, "SMS RP-DATA (MO)\n"); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 402 | rc = gsm411_rx_rp_data(msg, rp_data); |
| 403 | break; |
| 404 | case GSM411_MT_RP_ACK_MO: |
| 405 | /* Acnkowledgement to MT RP_DATA */ |
| 406 | case GSM411_MT_RP_ERROR_MO: |
| 407 | /* Error in response to MT RP_DATA */ |
| 408 | case GSM411_MT_RP_SMMA_MO: |
| 409 | /* MS tells us that it has memory for more SMS, we need |
| 410 | * to check if we have any pending messages for it and then |
| 411 | * transfer those */ |
| 412 | DEBUGP(DSMS, "Unimplemented RP type 0x%02x\n", msg_type); |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 413 | break; |
| 414 | default: |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 415 | DEBUGP(DSMS, "Invalid RP type 0x%02x\n", msg_type); |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 416 | break; |
| 417 | } |
| 418 | |
| 419 | return rc; |
| 420 | } |
| 421 | |
| 422 | int gsm0411_rcv_sms(struct msgb *msg) |
| 423 | { |
| 424 | struct gsm48_hdr *gh = msgb_l3(msg); |
| 425 | u_int8_t msg_type = gh->msg_type; |
| 426 | int rc = 0; |
| 427 | |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 428 | switch(msg_type) { |
| 429 | case GSM411_MT_CP_DATA: |
| 430 | DEBUGP(DSMS, "SMS CP-DATA\n"); |
Harald Welte | 7e310b1 | 2009-03-30 20:56:32 +0000 | [diff] [blame] | 431 | rc = gsm411_rx_cp_data(msg, gh); |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 432 | break; |
| 433 | case GSM411_MT_CP_ACK: |
Daniel Willmann | bb16e8e | 2008-12-29 03:53:50 +0000 | [diff] [blame] | 434 | DEBUGP(DSMS, "SMS CP-ACK\n"); |
| 435 | break; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 436 | case GSM411_MT_CP_ERROR: |
Daniel Willmann | bb16e8e | 2008-12-29 03:53:50 +0000 | [diff] [blame] | 437 | DEBUGP(DSMS, "SMS CP-ERROR, cause 0x%02x\n", gh->data[0]); |
| 438 | break; |
Daniel Willmann | 8b3390e | 2008-12-28 00:31:09 +0000 | [diff] [blame] | 439 | default: |
| 440 | DEBUGP(DSMS, "Unimplemented CP msg_type: 0x%02x\n", msg_type); |
| 441 | break; |
| 442 | } |
| 443 | |
| 444 | |
| 445 | return rc; |
| 446 | } |
| 447 | |
Daniel Willmann | 3b3f001 | 2008-12-30 13:56:46 +0000 | [diff] [blame] | 448 | /* Test TPDU - 25c3 welcome */ |
Harald Welte | 8c2e36e | 2008-12-30 15:00:14 +0000 | [diff] [blame] | 449 | #if 0 |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 450 | static u_int8_t tpdu_test[] = { |
Daniel Willmann | 3b3f001 | 2008-12-30 13:56:46 +0000 | [diff] [blame] | 451 | 0x04, 0x04, 0x81, 0x32, 0x24, 0x00, 0x00, 0x80, 0x21, 0x92, 0x90, 0x32, |
| 452 | 0x24, 0x40, 0x4D, 0xB2, 0xDA, 0x70, 0xD6, 0x9A, 0x97, 0xE5, 0xF6, 0xF4, |
| 453 | 0xB8, 0x0C, 0x0A, 0xBB, 0xDD, 0xEF, 0xBA, 0x7B, 0x5C, 0x6E, 0x97, 0xDD, |
| 454 | 0x74, 0x1D, 0x08, 0xCA, 0x2E, 0x87, 0xE7, 0x65, 0x50, 0x98, 0x4E, 0x2F, |
| 455 | 0xBB, 0xC9, 0x20, 0x3A, 0xBA, 0x0C, 0x3A, 0x4E, 0x9B, 0x20, 0x7A, 0x98, |
| 456 | 0xBD, 0x06, 0x85, 0xE9, 0xA0, 0x58, 0x4C, 0x37, 0x83, 0x81, 0xD2, 0x6E, |
| 457 | 0xD0, 0x34, 0x1C, 0x66, 0x83, 0x62, 0x21, 0x90, 0xAE, 0x95, 0x02 |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 458 | }; |
Harald Welte | 8c2e36e | 2008-12-30 15:00:14 +0000 | [diff] [blame] | 459 | #else |
Daniel Willmann | 3b3f001 | 2008-12-30 13:56:46 +0000 | [diff] [blame] | 460 | /* Test TPDU - ALL YOUR */ |
| 461 | static u_int8_t tpdu_test[] = { |
| 462 | 0x04, 0x04, 0x81, 0x32, 0x24, 0x00, 0x00, 0x80, 0x21, 0x03, 0x41, 0x24, |
| 463 | 0x32, 0x40, 0x1F, 0x41, 0x26, 0x13, 0x94, 0x7D, 0x56, 0xA5, 0x20, 0x28, |
| 464 | 0xF2, 0xE9, 0x2C, 0x82, 0x82, 0xD2, 0x22, 0x48, 0x58, 0x64, 0x3E, 0x9D, |
| 465 | 0x47, 0x10, 0xF5, 0x09, 0xAA, 0x4E, 0x01 |
Daniel Willmann | e2a728d | 2008-12-30 14:03:09 +0000 | [diff] [blame] | 466 | }; |
Harald Welte | 8c2e36e | 2008-12-30 15:00:14 +0000 | [diff] [blame] | 467 | #endif |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 468 | |
| 469 | int gsm0411_send_sms(struct gsm_lchan *lchan, struct sms_deliver *sms) |
| 470 | { |
| 471 | struct msgb *msg = gsm411_msgb_alloc(); |
| 472 | struct gsm48_hdr *gh; |
| 473 | struct gsm411_rp_hdr *rp; |
Holger Freyther | ca362a6 | 2009-01-04 21:05:01 +0000 | [diff] [blame] | 474 | u_int8_t *data; |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 475 | |
| 476 | msg->lchan = lchan; |
| 477 | |
| 478 | gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh)); |
| 479 | gh->proto_discr = GSM48_PDISC_SMS; |
| 480 | gh->msg_type = GSM411_MT_CP_DATA; |
| 481 | |
| 482 | rp = (struct gsm411_rp_hdr *)msgb_put(msg, sizeof(*rp)); |
Daniel Willmann | a3e2984 | 2008-12-29 16:03:54 +0000 | [diff] [blame] | 483 | rp->len = sizeof(tpdu_test) + 10; |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 484 | rp->msg_type = GSM411_MT_RP_DATA_MT; |
| 485 | rp->msg_ref = 42; /* FIXME: Choose randomly */ |
Daniel Willmann | fad5d0d | 2008-12-29 16:04:14 +0000 | [diff] [blame] | 486 | /* Hardcode OA for now */ |
Daniel Willmann | a3e2984 | 2008-12-29 16:03:54 +0000 | [diff] [blame] | 487 | data = (u_int8_t *)msgb_put(msg, 8); |
| 488 | data[0] = 0x07; |
| 489 | data[1] = 0x91; |
| 490 | data[2] = 0x44; |
| 491 | data[3] = 0x77; |
| 492 | data[4] = 0x58; |
| 493 | data[5] = 0x10; |
| 494 | data[6] = 0x06; |
| 495 | data[7] = 0x50; |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 496 | data = (u_int8_t *)msgb_put(msg, 1); |
| 497 | data[0] = 0; |
| 498 | |
| 499 | /* FIXME: Hardcoded for now */ |
Daniel Willmann | 4a1e879 | 2008-12-29 06:23:56 +0000 | [diff] [blame] | 500 | //smslen = gsm0411_tpdu_from_sms(tpdu, sms); |
| 501 | |
| 502 | /* RPDU length */ |
| 503 | data = (u_int8_t *)msgb_put(msg, 1); |
| 504 | data[0] = sizeof(tpdu_test); |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 505 | |
| 506 | data = (u_int8_t *)msgb_put(msg, sizeof(tpdu_test)); |
| 507 | |
| 508 | //memcpy(data, tpdu, smslen); |
| 509 | memcpy(data, tpdu_test, sizeof(tpdu_test)); |
| 510 | |
Daniel Willmann | 6fe997e | 2008-12-29 04:20:41 +0000 | [diff] [blame] | 511 | DEBUGP(DSMS, "TX: SMS SUBMIT\n"); |
| 512 | |
| 513 | return gsm0411_sendmsg(msg); |
| 514 | } |