Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [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 | * (C) 2009 by Harald Welte <laforge@gnumonks.org> |
| 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> |
| 34 | #include <openbsc/tlv.h> |
| 35 | #include <openbsc/debug.h> |
| 36 | #include <openbsc/gsm_data.h> |
| 37 | #include <openbsc/gsm_subscriber.h> |
| 38 | #include <openbsc/gsm_04_11.h> |
| 39 | #include <openbsc/gsm_04_08.h> |
| 40 | #include <openbsc/gsm_utils.h> |
| 41 | #include <openbsc/abis_rsl.h> |
| 42 | #include <openbsc/signal.h> |
| 43 | #include <openbsc/db.h> |
Harald Welte | a837977 | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 44 | #include <openbsc/talloc.h> |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 45 | |
| 46 | #define GSM411_ALLOC_SIZE 1024 |
| 47 | #define GSM411_ALLOC_HEADROOM 128 |
| 48 | |
Harald Welte | a837977 | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 49 | static void *tall_sms_ctx; |
| 50 | static void *tall_gsms_ctx; |
| 51 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 52 | struct msgb *gsm411_msgb_alloc(void) |
| 53 | { |
Harald Welte | 9cfc935 | 2009-06-26 19:39:35 +0200 | [diff] [blame] | 54 | return msgb_alloc_headroom(GSM411_ALLOC_SIZE, GSM411_ALLOC_HEADROOM, |
| 55 | "GSM 04.11"); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 56 | } |
| 57 | |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 58 | static int gsm411_sendmsg(struct msgb *msg) |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [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 | |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 68 | /* Prefix msg with a 04.08/04.11 CP header */ |
| 69 | static int gsm411_cp_sendmsg(struct msgb *msg, u_int8_t msg_type, |
| 70 | u_int8_t trans_id) |
| 71 | { |
| 72 | struct gsm48_hdr *gh; |
| 73 | |
| 74 | gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh)); |
| 75 | /* Outgoing needs the highest bit set */ |
| 76 | gh->proto_discr = GSM48_PDISC_SMS | trans_id<<4 | 0x80; |
| 77 | gh->msg_type = msg_type; |
| 78 | |
| 79 | return gsm411_sendmsg(msg); |
| 80 | } |
| 81 | |
| 82 | /* Prefix msg with a RP-DATA header and send as CP-DATA */ |
| 83 | static int gsm411_rp_sendmsg(struct msgb *msg, u_int8_t rp_msg_type, |
| 84 | u_int8_t rp_msg_ref, u_int8_t cp_trans_id) |
| 85 | { |
| 86 | struct gsm411_rp_hdr *rp; |
| 87 | |
| 88 | /* GSM 04.11 RP-DATA header */ |
| 89 | rp = (struct gsm411_rp_hdr *)msgb_push(msg, sizeof(*rp)); |
| 90 | rp->len = msg->len; |
| 91 | rp->msg_type = rp_msg_type; |
| 92 | rp->msg_ref = rp_msg_ref; /* FIXME: Choose randomly */ |
| 93 | |
| 94 | return gsm411_cp_sendmsg(msg, GSM411_MT_CP_DATA, cp_trans_id); |
| 95 | } |
| 96 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 97 | |
| 98 | #if 0 |
| 99 | static u_int8_t gsm0411_tpdu_from_sms(u_int8_t *tpdu, struct sms_deliver *sms) |
| 100 | { |
| 101 | } |
| 102 | #endif |
| 103 | |
| 104 | static unsigned long gsm340_validity_period(struct sms_submit *sms) |
| 105 | { |
| 106 | u_int8_t vp; |
| 107 | unsigned long minutes; |
| 108 | |
| 109 | switch (sms->vpf) { |
| 110 | case GSM340_TP_VPF_RELATIVE: |
| 111 | /* Chapter 9.2.3.12.1 */ |
| 112 | vp = *(sms->vp); |
| 113 | if (vp <= 143) |
| 114 | minutes = vp + 1 * 5; |
| 115 | else if (vp <= 167) |
| 116 | minutes = 12*60 + (vp-143) * 30; |
| 117 | else if (vp <= 196) |
| 118 | minutes = vp-166 * 60 * 24; |
| 119 | else |
| 120 | minutes = vp-192 * 60 * 24 * 7; |
| 121 | break; |
| 122 | case GSM340_TP_VPF_ABSOLUTE: |
| 123 | /* Chapter 9.2.3.12.2 */ |
| 124 | /* FIXME: like service center time stamp */ |
| 125 | DEBUGP(DSMS, "VPI absolute not implemented yet\n"); |
| 126 | break; |
| 127 | case GSM340_TP_VPF_ENHANCED: |
| 128 | /* Chapter 9.2.3.12.3 */ |
| 129 | /* FIXME: implementation */ |
| 130 | DEBUGP(DSMS, "VPI enhanced not implemented yet\n"); |
| 131 | break; |
| 132 | } |
| 133 | return minutes; |
| 134 | } |
| 135 | |
| 136 | /* determine coding alphabet dependent on GSM 03.38 Section 4 DCS */ |
| 137 | enum sms_alphabet gsm338_get_sms_alphabet(u_int8_t dcs) |
| 138 | { |
| 139 | u_int8_t cgbits = dcs >> 4; |
| 140 | enum sms_alphabet alpha = DCS_NONE; |
| 141 | |
| 142 | if ((cgbits & 0xc) == 0) { |
| 143 | if (cgbits & 2) |
| 144 | DEBUGP(DSMS, "Compressed SMS not supported yet\n"); |
| 145 | |
| 146 | switch (dcs & 3) { |
| 147 | case 0: |
| 148 | alpha = DCS_7BIT_DEFAULT; |
| 149 | break; |
| 150 | case 1: |
| 151 | alpha = DCS_8BIT_DATA; |
| 152 | break; |
| 153 | case 2: |
| 154 | alpha = DCS_UCS2; |
| 155 | break; |
| 156 | } |
| 157 | } else if (cgbits == 0xc || cgbits == 0xd) |
| 158 | alpha = DCS_7BIT_DEFAULT; |
| 159 | else if (cgbits == 0xe) |
| 160 | alpha = DCS_UCS2; |
| 161 | else if (cgbits == 0xf) { |
| 162 | if (dcs & 4) |
| 163 | alpha = DCS_8BIT_DATA; |
| 164 | else |
| 165 | alpha = DCS_7BIT_DEFAULT; |
| 166 | } |
| 167 | |
| 168 | return alpha; |
| 169 | } |
| 170 | |
| 171 | static int gsm340_rx_sms_submit(struct msgb *msg, struct sms_submit *sms, |
| 172 | struct gsm_sms *gsms) |
| 173 | { |
| 174 | if (db_sms_store(gsms) != 0) { |
| 175 | DEBUGP(DSMS, "Failed to store SMS in Database\n"); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 176 | return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 177 | } |
| 178 | return 0; |
| 179 | } |
| 180 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 181 | /* process an incoming TPDU (called from RP-DATA) |
| 182 | * return value > 0: RP CAUSE for ERROR; < 0: silent error; 0 = success */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 183 | static int gsm340_rx_tpdu(struct msgb *msg) |
| 184 | { |
Harald Welte | 7535041 | 2009-07-23 18:46:00 +0200 | [diff] [blame] | 185 | struct gsm_bts *bts = msg->lchan->ts->trx->bts; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 186 | u_int8_t *smsp = msgb_sms(msg); |
| 187 | struct sms_submit *sms; |
| 188 | struct gsm_sms *gsms; |
| 189 | u_int8_t da_len_bytes; |
| 190 | u_int8_t address_lv[12]; /* according to 03.40 / 9.1.2.5 */ |
| 191 | int rc = 0; |
| 192 | |
Harald Welte | a837977 | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 193 | if (!tall_sms_ctx) |
| 194 | tall_sms_ctx = talloc_named_const(tall_bsc_ctx, 1, |
| 195 | "sms_submit"); |
| 196 | |
| 197 | sms = talloc(tall_sms_ctx, struct sms_submit); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 198 | if (!sms) |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 199 | return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 200 | memset(sms, 0, sizeof(*sms)); |
| 201 | |
Harald Welte | a837977 | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 202 | if (!tall_gsms_ctx) |
| 203 | tall_gsms_ctx = talloc_named_const(tall_bsc_ctx, 1, |
| 204 | "sms"); |
| 205 | |
| 206 | gsms = talloc(tall_gsms_ctx, struct gsm_sms); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 207 | if (!gsms) { |
Harald Welte | a837977 | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 208 | talloc_free(sms); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 209 | return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 210 | } |
| 211 | memset(gsms, 0, sizeof(*gsms)); |
| 212 | |
| 213 | /* invert those fields where 0 means active/present */ |
| 214 | sms->mti = *smsp & 0x03; |
| 215 | sms->mms = !!(*smsp & 0x04); |
| 216 | sms->vpf = (*smsp & 0x18) >> 3; |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 217 | sms->srr = !!(*smsp & 0x20); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 218 | sms->udhi= !!(*smsp & 0x40); |
| 219 | sms->rp = !!(*smsp & 0x80); |
| 220 | |
| 221 | smsp++; |
| 222 | sms->msg_ref = *smsp++; |
| 223 | |
| 224 | /* length in bytes of the destination address */ |
| 225 | da_len_bytes = 2 + *smsp/2 + *smsp%2; |
| 226 | if (da_len_bytes > 12) { |
| 227 | DEBUGP(DSMS, "Destination Address > 12 bytes ?!?\n"); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 228 | rc = GSM411_RP_CAUSE_SEMANT_INC_MSG; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 229 | goto out; |
| 230 | } |
Harald Welte | 3794e15 | 2009-06-12 02:42:11 +0800 | [diff] [blame] | 231 | memset(address_lv, 0, sizeof(address_lv)); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 232 | memcpy(address_lv, smsp, da_len_bytes); |
| 233 | /* mangle first byte to reflect length in bytes, not digits */ |
Harald Welte | 3794e15 | 2009-06-12 02:42:11 +0800 | [diff] [blame] | 234 | address_lv[0] = da_len_bytes - 1; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 235 | /* convert to real number */ |
Harald Welte | 3794e15 | 2009-06-12 02:42:11 +0800 | [diff] [blame] | 236 | decode_bcd_number(sms->dest_addr, sizeof(sms->dest_addr), address_lv, 1); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 237 | |
| 238 | smsp += da_len_bytes; |
| 239 | |
| 240 | sms->pid = *smsp++; |
| 241 | |
| 242 | sms->dcs = *smsp++; |
| 243 | sms->alphabet = gsm338_get_sms_alphabet(sms->dcs); |
| 244 | |
| 245 | switch (sms->vpf) { |
| 246 | case GSM340_TP_VPF_RELATIVE: |
| 247 | sms->vp = smsp++; |
| 248 | break; |
| 249 | case GSM340_TP_VPF_ABSOLUTE: |
| 250 | case GSM340_TP_VPF_ENHANCED: |
| 251 | sms->vp = smsp; |
| 252 | smsp += 7; |
| 253 | break; |
| 254 | default: |
| 255 | DEBUGP(DSMS, "SMS Validity period not implemented: 0x%02x\n", |
| 256 | sms->vpf); |
| 257 | } |
| 258 | sms->ud_len = *smsp++; |
| 259 | if (sms->ud_len) |
| 260 | sms->user_data = smsp; |
| 261 | else |
| 262 | sms->user_data = NULL; |
| 263 | |
| 264 | if (sms->ud_len) { |
| 265 | switch (sms->alphabet) { |
| 266 | case DCS_7BIT_DEFAULT: |
| 267 | gsm_7bit_decode(sms->decoded, smsp, sms->ud_len); |
| 268 | break; |
| 269 | case DCS_8BIT_DATA: |
| 270 | case DCS_UCS2: |
| 271 | case DCS_NONE: |
| 272 | memcpy(sms->decoded, sms->user_data, sms->ud_len); |
| 273 | break; |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | DEBUGP(DSMS, "SMS:\nMTI: 0x%02x, VPF: 0x%02x, MR: 0x%02x " |
| 278 | "PID: 0x%02x, DCS: 0x%02x, DA: %s, UserDataLength: 0x%02x " |
| 279 | "UserData: \"%s\"\n", sms->mti, sms->vpf, sms->msg_ref, |
| 280 | sms->pid, sms->dcs, sms->dest_addr, sms->ud_len, |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 281 | sms->alphabet == DCS_7BIT_DEFAULT ? sms->decoded : |
| 282 | hexdump(sms->user_data, sms->ud_len)); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 283 | |
| 284 | dispatch_signal(SS_SMS, 0, sms); |
| 285 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 286 | /* now we've filled the 'sms' structure. Go on filling |
| 287 | * the gsms structure based on information from the sms */ |
| 288 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 289 | gsms->sender = msg->lchan->subscr; |
| 290 | /* FIXME: sender refcount */ |
| 291 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 292 | gsms->validity_minutes = gsm340_validity_period(sms); |
| 293 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 294 | /* determine gsms->receiver based on dialled number */ |
Harald Welte | 7535041 | 2009-07-23 18:46:00 +0200 | [diff] [blame] | 295 | gsms->receiver = subscr_get_by_extension(bts->network, sms->dest_addr); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 296 | if (!gsms->receiver) { |
| 297 | rc = 1; /* cause 1: unknown subscriber */ |
| 298 | goto out; |
| 299 | } |
| 300 | |
| 301 | if (sms->user_data) |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 302 | memcpy(gsms->header, sms->user_data, sms->ud_len); |
| 303 | |
| 304 | if (sms->decoded) |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 305 | strncpy(gsms->text, sms->decoded, sizeof(gsms->text)); |
| 306 | |
| 307 | switch (sms->mti) { |
| 308 | case GSM340_SMS_SUBMIT_MS2SC: |
| 309 | /* MS is submitting a SMS */ |
| 310 | rc = gsm340_rx_sms_submit(msg, sms, gsms); |
| 311 | break; |
| 312 | case GSM340_SMS_COMMAND_MS2SC: |
| 313 | case GSM340_SMS_DELIVER_REP_MS2SC: |
| 314 | DEBUGP(DSMS, "Unimplemented MTI 0x%02x\n", sms->mti); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 315 | rc = GSM411_RP_CAUSE_IE_NOTEXIST; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 316 | break; |
| 317 | default: |
| 318 | DEBUGP(DSMS, "Undefined MTI 0x%02x\n", sms->mti); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 319 | rc = GSM411_RP_CAUSE_IE_NOTEXIST; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 320 | break; |
| 321 | } |
| 322 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 323 | if (!rc && !gsms->receiver) |
| 324 | rc = GSM411_RP_CAUSE_MO_NUM_UNASSIGNED; |
| 325 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 326 | out: |
Harald Welte | a837977 | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 327 | talloc_free(gsms); |
| 328 | talloc_free(sms); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 329 | |
| 330 | return rc; |
| 331 | } |
| 332 | |
| 333 | static int gsm411_send_rp_ack(struct gsm_lchan *lchan, u_int8_t trans_id, |
| 334 | u_int8_t msg_ref) |
| 335 | { |
| 336 | struct msgb *msg = gsm411_msgb_alloc(); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 337 | |
| 338 | msg->lchan = lchan; |
| 339 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 340 | DEBUGP(DSMS, "TX: SMS RP ACK\n"); |
| 341 | |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 342 | return gsm411_rp_sendmsg(msg, GSM411_MT_RP_ACK_MT, msg_ref, trans_id); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 343 | } |
| 344 | |
| 345 | static int gsm411_send_rp_error(struct gsm_lchan *lchan, u_int8_t trans_id, |
| 346 | u_int8_t msg_ref, u_int8_t cause) |
| 347 | { |
| 348 | struct msgb *msg = gsm411_msgb_alloc(); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 349 | |
| 350 | msg->lchan = lchan; |
| 351 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 352 | msgb_tv_put(msg, 1, cause); |
| 353 | |
| 354 | DEBUGP(DSMS, "TX: SMS RP ERROR (cause %02d)\n", cause); |
| 355 | |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 356 | return gsm411_rp_sendmsg(msg, GSM411_MT_RP_ERROR_MT, msg_ref, trans_id); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 357 | } |
| 358 | |
| 359 | /* Receive a 04.11 TPDU inside RP-DATA / user data */ |
| 360 | static int gsm411_rx_rp_ud(struct msgb *msg, struct gsm411_rp_hdr *rph, |
| 361 | u_int8_t src_len, u_int8_t *src, |
| 362 | u_int8_t dst_len, u_int8_t *dst, |
| 363 | u_int8_t tpdu_len, u_int8_t *tpdu) |
| 364 | { |
| 365 | struct gsm48_hdr *gh = msgb_l3(msg); |
| 366 | u_int8_t trans_id = gh->proto_discr >> 4; |
| 367 | int rc = 0; |
| 368 | |
| 369 | if (src_len && src) |
| 370 | DEBUGP(DSMS, "RP-DATA (MO) with SRC ?!?\n"); |
| 371 | |
| 372 | if (!dst_len || !dst || !tpdu_len || !tpdu) { |
| 373 | DEBUGP(DSMS, "RP-DATA (MO) without DST or TPDU ?!?\n"); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 374 | gsm411_send_rp_error(msg->lchan, trans_id, rph->msg_ref, |
| 375 | GSM411_RP_CAUSE_INV_MAND_INF); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 376 | return -EIO; |
| 377 | } |
| 378 | msg->smsh = tpdu; |
| 379 | |
| 380 | DEBUGP(DSMS, "DST(%u,%s)\n", dst_len, hexdump(dst, dst_len)); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 381 | |
| 382 | rc = gsm340_rx_tpdu(msg); |
| 383 | if (rc == 0) |
| 384 | return gsm411_send_rp_ack(msg->lchan, trans_id, rph->msg_ref); |
| 385 | else if (rc > 0) |
| 386 | return gsm411_send_rp_error(msg->lchan, trans_id, rph->msg_ref, rc); |
| 387 | else |
| 388 | return rc; |
| 389 | } |
| 390 | |
| 391 | /* Receive a 04.11 RP-DATA message in accordance with Section 7.3.1.2 */ |
| 392 | static int gsm411_rx_rp_data(struct msgb *msg, struct gsm411_rp_hdr *rph) |
| 393 | { |
| 394 | u_int8_t src_len, dst_len, rpud_len; |
| 395 | u_int8_t *src = NULL, *dst = NULL , *rp_ud = NULL; |
| 396 | |
| 397 | /* in the MO case, this should always be zero length */ |
| 398 | src_len = rph->data[0]; |
| 399 | if (src_len) |
| 400 | src = &rph->data[1]; |
| 401 | |
| 402 | dst_len = rph->data[1+src_len]; |
| 403 | if (dst_len) |
| 404 | dst = &rph->data[1+src_len+1]; |
| 405 | |
| 406 | rpud_len = rph->data[1+src_len+1+dst_len]; |
| 407 | if (rpud_len) |
| 408 | rp_ud = &rph->data[1+src_len+1+dst_len+1]; |
| 409 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 410 | DEBUGP(DSMS, "RX_RP-DATA: src_len=%u, dst_len=%u ud_len=%u\n", |
| 411 | src_len, dst_len, rpud_len); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 412 | return gsm411_rx_rp_ud(msg, rph, src_len, src, dst_len, dst, |
| 413 | rpud_len, rp_ud); |
| 414 | } |
| 415 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 416 | |
| 417 | static int gsm411_rx_rp_ack(struct msgb *msg, struct gsm411_rp_hdr *rph) |
| 418 | { |
| 419 | /* Acnkowledgement to MT RP_DATA, i.e. the MS confirms it |
| 420 | * successfully received a SMS. We can now safely mark it as |
| 421 | * transmitted */ |
| 422 | |
Harald Welte | dd62b16 | 2009-07-09 23:52:59 +0200 | [diff] [blame] | 423 | /* we need to look-up the transaction based on rph->msg_ref to |
| 424 | * identify which particular RP_DATA/SMS-submit was ACKed */ |
| 425 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | static int gsm411_rx_rp_error(struct msgb *msg, struct gsm411_rp_hdr *rph) |
| 429 | { |
| 430 | /* Error in response to MT RP_DATA, i.e. the MS did not |
| 431 | * successfully receive the SMS. We need to investigate |
| 432 | * the cause and take action depending on it */ |
| 433 | |
Harald Welte | dd62b16 | 2009-07-09 23:52:59 +0200 | [diff] [blame] | 434 | /* we need to look-up the transaction based on rph->msg_ref to |
| 435 | * identify which particular RP_DATA/SMS-submit failed */ |
| 436 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 437 | } |
| 438 | |
| 439 | static int gsm411_rx_rp_smma(struct msgb *msg, struct gsm411_rp_hdr *rph) |
| 440 | { |
| 441 | /* MS tells us that it has memory for more SMS, we need |
| 442 | * to check if we have any pending messages for it and then |
| 443 | * transfer those */ |
| 444 | } |
| 445 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 446 | static int gsm411_rx_cp_data(struct msgb *msg, struct gsm48_hdr *gh) |
| 447 | { |
| 448 | struct gsm411_rp_hdr *rp_data = (struct gsm411_rp_hdr*)&gh->data; |
| 449 | u_int8_t msg_type = rp_data->msg_type & 0x07; |
| 450 | int rc = 0; |
| 451 | |
| 452 | switch (msg_type) { |
| 453 | case GSM411_MT_RP_DATA_MO: |
| 454 | DEBUGP(DSMS, "SMS RP-DATA (MO)\n"); |
| 455 | rc = gsm411_rx_rp_data(msg, rp_data); |
| 456 | break; |
| 457 | case GSM411_MT_RP_ACK_MO: |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 458 | rc = gsm411_rx_rp_ack(msg, rp_data); |
| 459 | break; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 460 | case GSM411_MT_RP_ERROR_MO: |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 461 | rc = gsm411_rx_rp_error(msg, rp_data); |
| 462 | break; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 463 | case GSM411_MT_RP_SMMA_MO: |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 464 | rc = gsm411_rx_rp_smma(msg, rp_data); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 465 | DEBUGP(DSMS, "Unimplemented RP type 0x%02x\n", msg_type); |
| 466 | break; |
| 467 | default: |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 468 | /* FIXME: send GSM411_CP_CAUSE_MSGTYPE_NOTEXIST */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 469 | DEBUGP(DSMS, "Invalid RP type 0x%02x\n", msg_type); |
| 470 | break; |
| 471 | } |
| 472 | |
| 473 | return rc; |
| 474 | } |
| 475 | |
| 476 | int gsm0411_rcv_sms(struct msgb *msg) |
| 477 | { |
| 478 | struct gsm48_hdr *gh = msgb_l3(msg); |
| 479 | u_int8_t msg_type = gh->msg_type; |
| 480 | int rc = 0; |
| 481 | |
| 482 | switch(msg_type) { |
| 483 | case GSM411_MT_CP_DATA: |
| 484 | DEBUGP(DSMS, "SMS CP-DATA\n"); |
| 485 | rc = gsm411_rx_cp_data(msg, gh); |
| 486 | break; |
| 487 | case GSM411_MT_CP_ACK: |
| 488 | DEBUGP(DSMS, "SMS CP-ACK\n"); |
| 489 | break; |
| 490 | case GSM411_MT_CP_ERROR: |
| 491 | DEBUGP(DSMS, "SMS CP-ERROR, cause 0x%02x\n", gh->data[0]); |
| 492 | break; |
| 493 | default: |
| 494 | DEBUGP(DSMS, "Unimplemented CP msg_type: 0x%02x\n", msg_type); |
| 495 | break; |
| 496 | } |
| 497 | |
| 498 | |
| 499 | return rc; |
| 500 | } |
| 501 | |
| 502 | /* Test TPDU - 25c3 welcome */ |
| 503 | #if 0 |
| 504 | static u_int8_t tpdu_test[] = { |
| 505 | 0x04, 0x04, 0x81, 0x32, 0x24, 0x00, 0x00, 0x80, 0x21, 0x92, 0x90, 0x32, |
| 506 | 0x24, 0x40, 0x4D, 0xB2, 0xDA, 0x70, 0xD6, 0x9A, 0x97, 0xE5, 0xF6, 0xF4, |
| 507 | 0xB8, 0x0C, 0x0A, 0xBB, 0xDD, 0xEF, 0xBA, 0x7B, 0x5C, 0x6E, 0x97, 0xDD, |
| 508 | 0x74, 0x1D, 0x08, 0xCA, 0x2E, 0x87, 0xE7, 0x65, 0x50, 0x98, 0x4E, 0x2F, |
| 509 | 0xBB, 0xC9, 0x20, 0x3A, 0xBA, 0x0C, 0x3A, 0x4E, 0x9B, 0x20, 0x7A, 0x98, |
| 510 | 0xBD, 0x06, 0x85, 0xE9, 0xA0, 0x58, 0x4C, 0x37, 0x83, 0x81, 0xD2, 0x6E, |
| 511 | 0xD0, 0x34, 0x1C, 0x66, 0x83, 0x62, 0x21, 0x90, 0xAE, 0x95, 0x02 |
| 512 | }; |
| 513 | #else |
| 514 | /* Test TPDU - ALL YOUR */ |
| 515 | static u_int8_t tpdu_test[] = { |
| 516 | 0x04, 0x04, 0x81, 0x32, 0x24, 0x00, 0x00, 0x80, 0x21, 0x03, 0x41, 0x24, |
| 517 | 0x32, 0x40, 0x1F, 0x41, 0x26, 0x13, 0x94, 0x7D, 0x56, 0xA5, 0x20, 0x28, |
| 518 | 0xF2, 0xE9, 0x2C, 0x82, 0x82, 0xD2, 0x22, 0x48, 0x58, 0x64, 0x3E, 0x9D, |
| 519 | 0x47, 0x10, 0xF5, 0x09, 0xAA, 0x4E, 0x01 |
| 520 | }; |
| 521 | #endif |
| 522 | |
| 523 | int gsm0411_send_sms(struct gsm_lchan *lchan, struct sms_deliver *sms) |
| 524 | { |
| 525 | struct msgb *msg = gsm411_msgb_alloc(); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 526 | u_int8_t *data; |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 527 | u_int8_t msg_ref = 42; |
| 528 | u_int8_t trans_id = 23; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 529 | |
| 530 | msg->lchan = lchan; |
| 531 | |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 532 | /* Hardcode Originating Address for now */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 533 | data = (u_int8_t *)msgb_put(msg, 8); |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 534 | data[0] = 0x07; /* originator length == 7 */ |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 535 | data[1] = 0x91; /* type of number: international, ISDN */ |
| 536 | data[2] = 0x44; /* 447785016005 */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 537 | data[3] = 0x77; |
| 538 | data[4] = 0x58; |
| 539 | data[5] = 0x10; |
| 540 | data[6] = 0x06; |
| 541 | data[7] = 0x50; |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 542 | |
| 543 | /* Hardcoded Destination Address */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 544 | data = (u_int8_t *)msgb_put(msg, 1); |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 545 | data[0] = 0; /* destination length == 0 */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 546 | |
| 547 | /* FIXME: Hardcoded for now */ |
| 548 | //smslen = gsm0411_tpdu_from_sms(tpdu, sms); |
| 549 | |
| 550 | /* RPDU length */ |
| 551 | data = (u_int8_t *)msgb_put(msg, 1); |
| 552 | data[0] = sizeof(tpdu_test); |
| 553 | |
| 554 | data = (u_int8_t *)msgb_put(msg, sizeof(tpdu_test)); |
| 555 | |
| 556 | //memcpy(data, tpdu, smslen); |
| 557 | memcpy(data, tpdu_test, sizeof(tpdu_test)); |
| 558 | |
| 559 | DEBUGP(DSMS, "TX: SMS SUBMIT\n"); |
| 560 | |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 561 | return gsm411_rp_sendmsg(msg, GSM411_MT_RP_DATA_MT, msg_ref, trans_id); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 562 | } |