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> |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 31 | #include <time.h> |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 32 | #include <netinet/in.h> |
| 33 | |
| 34 | #include <openbsc/msgb.h> |
| 35 | #include <openbsc/tlv.h> |
| 36 | #include <openbsc/debug.h> |
| 37 | #include <openbsc/gsm_data.h> |
| 38 | #include <openbsc/gsm_subscriber.h> |
| 39 | #include <openbsc/gsm_04_11.h> |
| 40 | #include <openbsc/gsm_04_08.h> |
| 41 | #include <openbsc/gsm_utils.h> |
| 42 | #include <openbsc/abis_rsl.h> |
| 43 | #include <openbsc/signal.h> |
| 44 | #include <openbsc/db.h> |
Harald Welte | a837977 | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 45 | #include <openbsc/talloc.h> |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 46 | #include <openbsc/transaction.h> |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 47 | #include <openbsc/paging.h> |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 48 | #include <openbsc/bsc_rll.h> |
Holger Hans Peter Freyther | 735cd9e | 2009-08-10 07:54:02 +0200 | [diff] [blame] | 49 | #include <openbsc/chan_alloc.h> |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 50 | |
| 51 | #define GSM411_ALLOC_SIZE 1024 |
| 52 | #define GSM411_ALLOC_HEADROOM 128 |
| 53 | |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 54 | #define UM_SAPI_SMS 3 /* See GSM 04.05/04.06 */ |
| 55 | |
Harald Welte (local) | 8751ee9 | 2009-08-15 02:30:58 +0200 | [diff] [blame] | 56 | void *tall_gsms_ctx; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 57 | static u_int32_t new_callref = 0x40000001; |
| 58 | |
Harald Welte (local) | cb4715c | 2009-08-14 10:42:43 +0200 | [diff] [blame] | 59 | static const struct value_string cp_cause_strs[] = { |
| 60 | { GSM411_CP_CAUSE_NET_FAIL, "Network Failure" }, |
| 61 | { GSM411_CP_CAUSE_CONGESTION, "Congestion" }, |
| 62 | { GSM411_CP_CAUSE_INV_TRANS_ID, "Invalid Transaction ID" }, |
| 63 | { GSM411_CP_CAUSE_SEMANT_INC_MSG, "Semantically Incorrect Message" }, |
| 64 | { GSM411_CP_CAUSE_INV_MAND_INF, "Invalid Mandatory Information" }, |
| 65 | { GSM411_CP_CAUSE_MSGTYPE_NOTEXIST, "Message Type doesn't exist" }, |
| 66 | { GSM411_CP_CAUSE_MSG_INCOMP_STATE, |
| 67 | "Message incompatible with protocol state" }, |
| 68 | { GSM411_CP_CAUSE_IE_NOTEXIST, "IE does not exist" }, |
| 69 | { GSM411_CP_CAUSE_PROTOCOL_ERR, "Protocol Error" }, |
| 70 | { 0, 0 } |
| 71 | }; |
| 72 | |
| 73 | static const struct value_string rp_cause_strs[] = { |
| 74 | { GSM411_RP_CAUSE_MO_NUM_UNASSIGNED, "(MO) Number not assigned" }, |
| 75 | { GSM411_RP_CAUSE_MO_OP_DET_BARR, "(MO) Operator determined barring" }, |
| 76 | { GSM411_RP_CAUSE_MO_CALL_BARRED, "(MO) Call barred" }, |
| 77 | { GSM411_RP_CAUSE_MO_SMS_REJECTED, "(MO) SMS rejected" }, |
| 78 | { GSM411_RP_CAUSE_MO_DEST_OUT_OF_ORDER, "(MO) Destination out of order" }, |
| 79 | { GSM411_RP_CAUSE_MO_UNIDENTIFIED_SUBSCR, "(MO) Unidentified subscriber" }, |
| 80 | { GSM411_RP_CAUSE_MO_FACILITY_REJ, "(MO) Facility reject" }, |
| 81 | { GSM411_RP_CAUSE_MO_UNKNOWN_SUBSCR, "(MO) Unknown subscriber" }, |
| 82 | { GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER, "(MO) Network out of order" }, |
| 83 | { GSM411_RP_CAUSE_MO_TEMP_FAIL, "(MO) Temporary failure" }, |
| 84 | { GSM411_RP_CAUSE_MO_CONGESTION, "(MO) Congestion" }, |
| 85 | { GSM411_RP_CAUSE_MO_RES_UNAVAIL, "(MO) Resource unavailable" }, |
| 86 | { GSM411_RP_CAUSE_MO_REQ_FAC_NOTSUBSCR, "(MO) Requested facility not subscribed" }, |
| 87 | { GSM411_RP_CAUSE_MO_REQ_FAC_NOTIMPL, "(MO) Requested facility not implemented" }, |
| 88 | { GSM411_RP_CAUSE_MO_INTERWORKING, "(MO) Interworking" }, |
| 89 | /* valid only for MT */ |
| 90 | { GSM411_RP_CAUSE_MT_MEM_EXCEEDED, "(MT) Memory Exceeded" }, |
| 91 | /* valid for both directions */ |
| 92 | { GSM411_RP_CAUSE_INV_TRANS_REF, "Invalid Transaction Reference" }, |
| 93 | { GSM411_RP_CAUSE_SEMANT_INC_MSG, "Semantically Incorrect Message" }, |
| 94 | { GSM411_RP_CAUSE_INV_MAND_INF, "Invalid Mandatory Information" }, |
| 95 | { GSM411_RP_CAUSE_MSGTYPE_NOTEXIST, "Message Type non-existant" }, |
| 96 | { GSM411_RP_CAUSE_MSG_INCOMP_STATE, "Message incompatible with protocol state" }, |
| 97 | { GSM411_RP_CAUSE_IE_NOTEXIST, "Information Element not existing" }, |
| 98 | { GSM411_RP_CAUSE_PROTOCOL_ERR, "Protocol Error" }, |
| 99 | { 0, NULL } |
| 100 | }; |
| 101 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 102 | struct gsm_sms *sms_alloc(void) |
| 103 | { |
| 104 | return talloc_zero(tall_gsms_ctx, struct gsm_sms); |
| 105 | } |
| 106 | |
| 107 | void sms_free(struct gsm_sms *sms) |
| 108 | { |
| 109 | /* drop references to subscriber structure */ |
| 110 | if (sms->sender) |
| 111 | subscr_put(sms->sender); |
| 112 | if (sms->receiver) |
| 113 | subscr_put(sms->receiver); |
| 114 | |
| 115 | talloc_free(sms); |
| 116 | } |
| 117 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 118 | struct msgb *gsm411_msgb_alloc(void) |
| 119 | { |
Harald Welte | 9cfc935 | 2009-06-26 19:39:35 +0200 | [diff] [blame] | 120 | return msgb_alloc_headroom(GSM411_ALLOC_SIZE, GSM411_ALLOC_HEADROOM, |
| 121 | "GSM 04.11"); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 122 | } |
| 123 | |
Harald Welte (local) | 64994ce | 2009-08-14 11:41:12 +0200 | [diff] [blame] | 124 | static int gsm411_sendmsg(struct msgb *msg, u_int8_t link_id) |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 125 | { |
| 126 | if (msg->lchan) |
| 127 | msg->trx = msg->lchan->ts->trx; |
| 128 | |
| 129 | msg->l3h = msg->data; |
| 130 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 131 | DEBUGP(DSMS, "GSM4.11 TX %s\n", hexdump(msg->data, msg->len)); |
| 132 | |
Harald Welte (local) | 64994ce | 2009-08-14 11:41:12 +0200 | [diff] [blame] | 133 | return rsl_data_request(msg, link_id); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 134 | } |
| 135 | |
Harald Welte | 5fa17a2 | 2009-08-10 00:24:32 +0200 | [diff] [blame] | 136 | /* SMC TC1* is expired */ |
| 137 | static void cp_timer_expired(void *data) |
| 138 | { |
| 139 | struct gsm_trans *trans = data; |
| 140 | |
| 141 | DEBUGP(DSMS, "SMC Timer TC1* is expired, calling trans_free()\n"); |
| 142 | /* FIXME: we need to re-transmit the last CP-DATA 1..3 times */ |
| 143 | trans_free(trans); |
| 144 | } |
| 145 | |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 146 | /* Prefix msg with a 04.08/04.11 CP header */ |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 147 | static int gsm411_cp_sendmsg(struct msgb *msg, struct gsm_trans *trans, |
| 148 | u_int8_t msg_type) |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 149 | { |
| 150 | struct gsm48_hdr *gh; |
| 151 | |
| 152 | gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh)); |
| 153 | /* Outgoing needs the highest bit set */ |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 154 | gh->proto_discr = trans->protocol | (trans->transaction_id<<4); |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 155 | gh->msg_type = msg_type; |
| 156 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 157 | /* assign the outgoing lchan */ |
| 158 | msg->lchan = trans->lchan; |
| 159 | |
| 160 | /* mobile originating */ |
| 161 | switch (gh->msg_type) { |
| 162 | case GSM411_MT_CP_DATA: |
| 163 | /* 5.2.3.1.2: enter MO-wait for CP-ack */ |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 164 | /* 5.2.3.2.3: enter MT-wait for CP-ACK */ |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 165 | trans->sms.cp_state = GSM411_CPS_WAIT_CP_ACK; |
Harald Welte | 5fa17a2 | 2009-08-10 00:24:32 +0200 | [diff] [blame] | 166 | trans->sms.cp_timer.data = trans; |
| 167 | trans->sms.cp_timer.cb = cp_timer_expired; |
| 168 | /* 5.3.2.1: Set Timer TC1A */ |
| 169 | bsc_schedule_timer(&trans->sms.cp_timer, GSM411_TMR_TC1A); |
Harald Welte (local) | cb4715c | 2009-08-14 10:42:43 +0200 | [diff] [blame] | 170 | DEBUGP(DSMS, "TX: CP-DATA "); |
| 171 | break; |
| 172 | case GSM411_MT_CP_ACK: |
| 173 | DEBUGP(DSMS, "TX: CP-ACK "); |
| 174 | break; |
| 175 | case GSM411_MT_CP_ERROR: |
Sylvain Munaut | 163a24a | 2009-12-18 18:28:07 +0100 | [diff] [blame] | 176 | DEBUGP(DSMS, "TX: CP-ERROR "); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 177 | break; |
| 178 | } |
| 179 | |
Harald Welte (local) | cb4715c | 2009-08-14 10:42:43 +0200 | [diff] [blame] | 180 | DEBUGPC(DSMS, "trans=%x\n", trans->transaction_id); |
| 181 | |
Harald Welte (local) | 64994ce | 2009-08-14 11:41:12 +0200 | [diff] [blame] | 182 | return gsm411_sendmsg(msg, trans->sms.link_id); |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 183 | } |
| 184 | |
| 185 | /* Prefix msg with a RP-DATA header and send as CP-DATA */ |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 186 | static int gsm411_rp_sendmsg(struct msgb *msg, struct gsm_trans *trans, |
| 187 | u_int8_t rp_msg_type, u_int8_t rp_msg_ref) |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 188 | { |
| 189 | struct gsm411_rp_hdr *rp; |
Harald Welte | f2e680b | 2009-08-10 00:22:19 +0200 | [diff] [blame] | 190 | u_int8_t len = msg->len; |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 191 | |
| 192 | /* GSM 04.11 RP-DATA header */ |
| 193 | rp = (struct gsm411_rp_hdr *)msgb_push(msg, sizeof(*rp)); |
Harald Welte | f2e680b | 2009-08-10 00:22:19 +0200 | [diff] [blame] | 194 | rp->len = len + 2; |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 195 | rp->msg_type = rp_msg_type; |
| 196 | rp->msg_ref = rp_msg_ref; /* FIXME: Choose randomly */ |
| 197 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 198 | return gsm411_cp_sendmsg(msg, trans, GSM411_MT_CP_DATA); |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 199 | } |
| 200 | |
Steffen Neubauer | 9cfb040 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 201 | /* Turn int into semi-octet representation: 98 => 0x89 */ |
| 202 | static u_int8_t bcdify(u_int8_t value) |
| 203 | { |
| 204 | u_int8_t ret; |
Steffen Neubauer | 9443695 | 2009-11-11 23:02:07 +0900 | [diff] [blame] | 205 | |
Steffen Neubauer | 9cfb040 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 206 | ret = value / 10; |
| 207 | ret |= (value % 10) << 4; |
| 208 | |
| 209 | return ret; |
| 210 | } |
| 211 | |
| 212 | /* Turn semi-octet representation into int: 0x89 => 98 */ |
| 213 | static u_int8_t unbcdify(u_int8_t value) |
| 214 | { |
| 215 | u_int8_t ret; |
| 216 | |
| 217 | if ((value & 0x0F) > 9 || (value >> 4) > 9) |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 218 | LOGP(DSMS, LOGL_ERROR, |
| 219 | "unbcdify got too big nibble: 0x%02X\n", value); |
Steffen Neubauer | 9cfb040 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 220 | |
| 221 | ret = (value&0x0F)*10; |
Steffen Neubauer | e5e0eb7 | 2009-11-26 23:38:41 +0100 | [diff] [blame] | 222 | ret += value>>4; |
Steffen Neubauer | 9cfb040 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 223 | |
| 224 | return ret; |
| 225 | } |
| 226 | |
| 227 | /* Generate 03.40 TP-SCTS */ |
| 228 | static void gsm340_gen_scts(u_int8_t *scts, time_t time) |
| 229 | { |
| 230 | struct tm *tm = localtime(&time); |
| 231 | |
| 232 | *scts++ = bcdify(tm->tm_year % 100); |
| 233 | *scts++ = bcdify(tm->tm_mon + 1); |
| 234 | *scts++ = bcdify(tm->tm_mday); |
| 235 | *scts++ = bcdify(tm->tm_hour); |
| 236 | *scts++ = bcdify(tm->tm_min); |
| 237 | *scts++ = bcdify(tm->tm_sec); |
| 238 | *scts++ = bcdify(tm->tm_gmtoff/(60*15)); |
| 239 | } |
| 240 | |
| 241 | /* Decode 03.40 TP-SCTS (into utc/gmt timestamp) */ |
| 242 | static time_t gsm340_scts(u_int8_t *scts) |
| 243 | { |
| 244 | struct tm tm; |
| 245 | |
| 246 | u_int8_t yr = unbcdify(*scts++); |
| 247 | |
| 248 | if (yr <= 80) |
| 249 | tm.tm_year = 100 + yr; |
| 250 | else |
| 251 | tm.tm_year = yr; |
| 252 | tm.tm_mon = unbcdify(*scts++) - 1; |
| 253 | tm.tm_mday = unbcdify(*scts++); |
| 254 | tm.tm_hour = unbcdify(*scts++); |
| 255 | tm.tm_min = unbcdify(*scts++); |
| 256 | tm.tm_sec = unbcdify(*scts++); |
| 257 | /* according to gsm 03.40 time zone is |
| 258 | "expressed in quarters of an hour" */ |
| 259 | tm.tm_gmtoff = unbcdify(*scts++) * 15*60; |
| 260 | |
| 261 | return mktime(&tm); |
| 262 | } |
| 263 | |
| 264 | /* Return the default validity period in minutes */ |
| 265 | static unsigned long gsm340_vp_default(void) |
| 266 | { |
| 267 | unsigned long minutes; |
| 268 | /* Default validity: two days */ |
| 269 | minutes = 24 * 60 * 2; |
| 270 | return minutes; |
| 271 | } |
| 272 | |
| 273 | /* Decode validity period format 'relative' */ |
| 274 | static unsigned long gsm340_vp_relative(u_int8_t *sms_vp) |
| 275 | { |
| 276 | /* Chapter 9.2.3.12.1 */ |
| 277 | u_int8_t vp; |
| 278 | unsigned long minutes; |
| 279 | |
| 280 | vp = *(sms_vp); |
| 281 | if (vp <= 143) |
| 282 | minutes = vp + 1 * 5; |
| 283 | else if (vp <= 167) |
| 284 | minutes = 12*60 + (vp-143) * 30; |
| 285 | else if (vp <= 196) |
| 286 | minutes = vp-166 * 60 * 24; |
| 287 | else |
| 288 | minutes = vp-192 * 60 * 24 * 7; |
| 289 | return minutes; |
| 290 | } |
| 291 | |
| 292 | /* Decode validity period format 'absolute' */ |
| 293 | static unsigned long gsm340_vp_absolute(u_int8_t *sms_vp) |
| 294 | { |
| 295 | /* Chapter 9.2.3.12.2 */ |
| 296 | time_t expires, now; |
| 297 | unsigned long minutes; |
| 298 | |
| 299 | expires = gsm340_scts(sms_vp); |
| 300 | now = mktime(gmtime(NULL)); |
| 301 | if (expires <= now) |
| 302 | minutes = 0; |
| 303 | else |
| 304 | minutes = (expires-now)/60; |
| 305 | return minutes; |
| 306 | } |
| 307 | |
| 308 | /* Decode validity period format 'relative in integer representation' */ |
| 309 | static unsigned long gsm340_vp_relative_integer(u_int8_t *sms_vp) |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 310 | { |
| 311 | u_int8_t vp; |
| 312 | unsigned long minutes; |
Steffen Neubauer | 9cfb040 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 313 | vp = *(sms_vp); |
| 314 | if (vp == 0) { |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 315 | LOGP(DSMS, LOGL_ERROR, |
| 316 | "reserved relative_integer validity period\n"); |
Steffen Neubauer | 9cfb040 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 317 | return gsm340_vp_default(); |
| 318 | } |
| 319 | minutes = vp/60; |
| 320 | return minutes; |
| 321 | } |
| 322 | |
| 323 | /* Decode validity period format 'relative in semi-octet representation' */ |
| 324 | static unsigned long gsm340_vp_relative_semioctet(u_int8_t *sms_vp) |
| 325 | { |
| 326 | unsigned long minutes; |
| 327 | minutes = unbcdify(*sms_vp++)*60; /* hours */ |
| 328 | minutes += unbcdify(*sms_vp++); /* minutes */ |
| 329 | minutes += unbcdify(*sms_vp++)/60; /* seconds */ |
| 330 | return minutes; |
| 331 | } |
| 332 | |
| 333 | /* decode validity period. return minutes */ |
| 334 | static unsigned long gsm340_validity_period(u_int8_t sms_vpf, u_int8_t *sms_vp) |
| 335 | { |
| 336 | u_int8_t fi; /* functionality indicator */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 337 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 338 | switch (sms_vpf) { |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 339 | case GSM340_TP_VPF_RELATIVE: |
Steffen Neubauer | 9cfb040 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 340 | return gsm340_vp_relative(sms_vp); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 341 | case GSM340_TP_VPF_ABSOLUTE: |
Steffen Neubauer | 9cfb040 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 342 | return gsm340_vp_absolute(sms_vp); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 343 | case GSM340_TP_VPF_ENHANCED: |
| 344 | /* Chapter 9.2.3.12.3 */ |
Steffen Neubauer | 9cfb040 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 345 | fi = *sms_vp++; |
| 346 | /* ignore additional fi */ |
| 347 | if (fi & (1<<7)) sms_vp++; |
| 348 | /* read validity period format */ |
| 349 | switch (fi & 0b111) { |
| 350 | case 0b000: |
| 351 | return gsm340_vp_default(); /* no vpf specified */ |
| 352 | case 0b001: |
| 353 | return gsm340_vp_relative(sms_vp); |
| 354 | case 0b010: |
| 355 | return gsm340_vp_relative_integer(sms_vp); |
| 356 | case 0b011: |
| 357 | return gsm340_vp_relative_semioctet(sms_vp); |
| 358 | default: |
| 359 | /* The GSM spec says that the SC should reject any |
| 360 | unsupported and/or undefined values. FIXME */ |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 361 | LOGP(DSMS, LOGL_ERROR, |
| 362 | "Reserved enhanced validity period format\n"); |
Steffen Neubauer | 9cfb040 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 363 | return gsm340_vp_default(); |
| 364 | } |
Daniel Willmann | 426bb16 | 2009-08-13 03:40:49 +0200 | [diff] [blame] | 365 | case GSM340_TP_VPF_NONE: |
Steffen Neubauer | 9cfb040 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 366 | default: |
| 367 | return gsm340_vp_default(); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 368 | } |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 369 | } |
| 370 | |
| 371 | /* determine coding alphabet dependent on GSM 03.38 Section 4 DCS */ |
| 372 | enum sms_alphabet gsm338_get_sms_alphabet(u_int8_t dcs) |
| 373 | { |
| 374 | u_int8_t cgbits = dcs >> 4; |
| 375 | enum sms_alphabet alpha = DCS_NONE; |
| 376 | |
| 377 | if ((cgbits & 0xc) == 0) { |
| 378 | if (cgbits & 2) |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 379 | LOGP(DSMS, LOGL_NOTICE, |
| 380 | "Compressed SMS not supported yet\n"); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 381 | |
Daniel Willmann | f286102 | 2009-08-15 03:01:17 +0200 | [diff] [blame] | 382 | switch ((dcs >> 2)&0x03) { |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 383 | case 0: |
| 384 | alpha = DCS_7BIT_DEFAULT; |
| 385 | break; |
| 386 | case 1: |
| 387 | alpha = DCS_8BIT_DATA; |
| 388 | break; |
| 389 | case 2: |
| 390 | alpha = DCS_UCS2; |
| 391 | break; |
| 392 | } |
| 393 | } else if (cgbits == 0xc || cgbits == 0xd) |
| 394 | alpha = DCS_7BIT_DEFAULT; |
| 395 | else if (cgbits == 0xe) |
| 396 | alpha = DCS_UCS2; |
| 397 | else if (cgbits == 0xf) { |
| 398 | if (dcs & 4) |
| 399 | alpha = DCS_8BIT_DATA; |
| 400 | else |
| 401 | alpha = DCS_7BIT_DEFAULT; |
| 402 | } |
| 403 | |
| 404 | return alpha; |
| 405 | } |
| 406 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 407 | static int gsm340_rx_sms_submit(struct msgb *msg, struct gsm_sms *gsms) |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 408 | { |
| 409 | if (db_sms_store(gsms) != 0) { |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 410 | LOGP(DSMS, LOGL_ERROR, "Failed to store SMS in Database\n"); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 411 | return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 412 | } |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 413 | /* dispatch a signal to tell higher level about it */ |
| 414 | dispatch_signal(SS_SMS, S_SMS_SUBMITTED, gsms); |
Harald Welte (local) | ced09ed | 2009-08-17 09:39:55 +0200 | [diff] [blame] | 415 | /* try delivering the SMS right now */ |
| 416 | //gsm411_send_sms_subscr(gsms->receiver, gsms); |
| 417 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 418 | return 0; |
| 419 | } |
| 420 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 421 | /* generate a TPDU address field compliant with 03.40 sec. 9.1.2.5 */ |
| 422 | static int gsm340_gen_oa(u_int8_t *oa, unsigned int oa_len, |
| 423 | struct gsm_subscriber *subscr) |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 424 | { |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 425 | int len_in_bytes; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 426 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 427 | oa[1] = 0xb9; /* networks-specific number, private numbering plan */ |
| 428 | |
| 429 | len_in_bytes = encode_bcd_number(oa, oa_len, 1, subscr->extension); |
| 430 | |
| 431 | /* GSM 03.40 tells us the length is in 'useful semi-octets' */ |
| 432 | oa[0] = strlen(subscr->extension) & 0xff; |
| 433 | |
| 434 | return len_in_bytes; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 435 | } |
| 436 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 437 | /* generate a msgb containing a TPDU derived from struct gsm_sms, |
| 438 | * returns total size of TPDU */ |
| 439 | static int gsm340_gen_tpdu(struct msgb *msg, struct gsm_sms *sms) |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 440 | { |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 441 | u_int8_t *smsp; |
| 442 | u_int8_t oa[12]; /* max len per 03.40 */ |
| 443 | u_int8_t oa_len = 0; |
Daniel Willmann | a31ed62 | 2009-08-13 03:39:07 +0200 | [diff] [blame] | 444 | u_int8_t octet_len; |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 445 | unsigned int old_msg_len = msg->len; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 446 | |
| 447 | /* generate first octet with masked bits */ |
| 448 | smsp = msgb_put(msg, 1); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 449 | /* TP-MTI (message type indicator) */ |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 450 | *smsp = GSM340_SMS_DELIVER_SC2MS; |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 451 | /* TP-MMS (more messages to send) */ |
| 452 | if (0 /* FIXME */) |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 453 | *smsp |= 0x04; |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 454 | /* TP-SRI(deliver)/SRR(submit) */ |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 455 | if (sms->status_rep_req) |
| 456 | *smsp |= 0x20; |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 457 | /* TP-UDHI (indicating TP-UD contains a header) */ |
| 458 | if (sms->ud_hdr_ind) |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 459 | *smsp |= 0x40; |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 460 | #if 0 |
| 461 | /* TP-RP (indicating that a reply path exists) */ |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 462 | if (sms-> |
| 463 | *smsp |= 0x80; |
| 464 | #endif |
| 465 | |
| 466 | /* generate originator address */ |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 467 | oa_len = gsm340_gen_oa(oa, sizeof(oa), sms->sender); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 468 | smsp = msgb_put(msg, oa_len); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 469 | memcpy(smsp, oa, oa_len); |
| 470 | |
| 471 | /* generate TP-PID */ |
| 472 | smsp = msgb_put(msg, 1); |
| 473 | *smsp = sms->protocol_id; |
| 474 | |
| 475 | /* generate TP-DCS */ |
| 476 | smsp = msgb_put(msg, 1); |
| 477 | *smsp = sms->data_coding_scheme; |
| 478 | |
| 479 | /* generate TP-SCTS */ |
| 480 | smsp = msgb_put(msg, 7); |
| 481 | gsm340_gen_scts(smsp, time(NULL)); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 482 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 483 | /* generate TP-UDL */ |
| 484 | smsp = msgb_put(msg, 1); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 485 | *smsp = sms->user_data_len; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 486 | |
| 487 | /* generate TP-UD */ |
Daniel Willmann | 8d78660 | 2009-08-15 03:01:46 +0200 | [diff] [blame] | 488 | switch (gsm338_get_sms_alphabet(sms->data_coding_scheme)) { |
| 489 | case DCS_7BIT_DEFAULT: |
Daniel Willmann | a31ed62 | 2009-08-13 03:39:07 +0200 | [diff] [blame] | 490 | octet_len = sms->user_data_len*7/8; |
| 491 | if (sms->user_data_len*7%8 != 0) |
| 492 | octet_len++; |
Daniel Willmann | 8f31ed9 | 2009-08-12 21:17:06 +0200 | [diff] [blame] | 493 | /* Warning, user_data_len indicates the amount of septets |
| 494 | * (characters), we need amount of octets occupied */ |
Daniel Willmann | a31ed62 | 2009-08-13 03:39:07 +0200 | [diff] [blame] | 495 | smsp = msgb_put(msg, octet_len); |
| 496 | memcpy(smsp, sms->user_data, octet_len); |
Daniel Willmann | 8d78660 | 2009-08-15 03:01:46 +0200 | [diff] [blame] | 497 | break; |
| 498 | case DCS_UCS2: |
| 499 | case DCS_8BIT_DATA: |
| 500 | smsp = msgb_put(msg, sms->user_data_len); |
| 501 | memcpy(smsp, sms->user_data, sms->user_data_len); |
| 502 | break; |
| 503 | default: |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 504 | LOGP(DSMS, LOGL_NOTICE, "Unhandled Data Coding Scheme: 0x%02X\n", |
| 505 | sms->data_coding_scheme); |
Daniel Willmann | 8d78660 | 2009-08-15 03:01:46 +0200 | [diff] [blame] | 506 | break; |
Daniel Willmann | 8f31ed9 | 2009-08-12 21:17:06 +0200 | [diff] [blame] | 507 | } |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 508 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 509 | return msg->len - old_msg_len; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 510 | } |
| 511 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 512 | /* process an incoming TPDU (called from RP-DATA) |
| 513 | * return value > 0: RP CAUSE for ERROR; < 0: silent error; 0 = success */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 514 | static int gsm340_rx_tpdu(struct msgb *msg) |
| 515 | { |
Harald Welte | 7535041 | 2009-07-23 18:46:00 +0200 | [diff] [blame] | 516 | struct gsm_bts *bts = msg->lchan->ts->trx->bts; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 517 | u_int8_t *smsp = msgb_sms(msg); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 518 | struct gsm_sms *gsms; |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 519 | u_int8_t sms_mti, sms_mms, sms_vpf, sms_alphabet, sms_rp; |
| 520 | u_int8_t *sms_vp; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 521 | u_int8_t da_len_bytes; |
| 522 | u_int8_t address_lv[12]; /* according to 03.40 / 9.1.2.5 */ |
| 523 | int rc = 0; |
| 524 | |
Harald Welte | bdbb744 | 2009-12-22 19:07:32 +0100 | [diff] [blame] | 525 | counter_inc(bts->network->stats.sms.submitted); |
Harald Welte | 3edc5a9 | 2009-12-22 00:41:05 +0100 | [diff] [blame] | 526 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 527 | gsms = sms_alloc(); |
| 528 | if (!gsms) |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 529 | return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 530 | |
| 531 | /* invert those fields where 0 means active/present */ |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 532 | sms_mti = *smsp & 0x03; |
| 533 | sms_mms = !!(*smsp & 0x04); |
| 534 | sms_vpf = (*smsp & 0x18) >> 3; |
| 535 | gsms->status_rep_req = (*smsp & 0x20); |
| 536 | gsms->ud_hdr_ind = (*smsp & 0x40); |
| 537 | sms_rp = (*smsp & 0x80); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 538 | |
| 539 | smsp++; |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 540 | gsms->msg_ref = *smsp++; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 541 | |
| 542 | /* length in bytes of the destination address */ |
| 543 | da_len_bytes = 2 + *smsp/2 + *smsp%2; |
| 544 | if (da_len_bytes > 12) { |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 545 | LOGP(DSMS, LOGL_ERROR, "Destination Address > 12 bytes ?!?\n"); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 546 | rc = GSM411_RP_CAUSE_SEMANT_INC_MSG; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 547 | goto out; |
| 548 | } |
Harald Welte | 3794e15 | 2009-06-12 02:42:11 +0800 | [diff] [blame] | 549 | memset(address_lv, 0, sizeof(address_lv)); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 550 | memcpy(address_lv, smsp, da_len_bytes); |
| 551 | /* mangle first byte to reflect length in bytes, not digits */ |
Harald Welte | 3794e15 | 2009-06-12 02:42:11 +0800 | [diff] [blame] | 552 | address_lv[0] = da_len_bytes - 1; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 553 | /* convert to real number */ |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 554 | decode_bcd_number(gsms->dest_addr, sizeof(gsms->dest_addr), address_lv, 1); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 555 | smsp += da_len_bytes; |
| 556 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 557 | gsms->protocol_id = *smsp++; |
| 558 | gsms->data_coding_scheme = *smsp++; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 559 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 560 | sms_alphabet = gsm338_get_sms_alphabet(gsms->data_coding_scheme); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 561 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 562 | switch (sms_vpf) { |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 563 | case GSM340_TP_VPF_RELATIVE: |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 564 | sms_vp = smsp++; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 565 | break; |
| 566 | case GSM340_TP_VPF_ABSOLUTE: |
| 567 | case GSM340_TP_VPF_ENHANCED: |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 568 | sms_vp = smsp; |
Steffen Neubauer | 9cfb040 | 2009-11-26 12:28:41 +0100 | [diff] [blame] | 569 | /* the additional functionality indicator... */ |
Steffen Neubauer | dd488d1 | 2009-12-05 12:44:41 +0100 | [diff] [blame] | 570 | if (sms_vpf == GSM340_TP_VPF_ENHANCED && *smsp & (1<<7)) |
| 571 | smsp++; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 572 | smsp += 7; |
| 573 | break; |
Daniel Willmann | 426bb16 | 2009-08-13 03:40:49 +0200 | [diff] [blame] | 574 | case GSM340_TP_VPF_NONE: |
| 575 | sms_vp = 0; |
| 576 | break; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 577 | default: |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 578 | LOGP(DSMS, LOGL_NOTICE, |
| 579 | "SMS Validity period not implemented: 0x%02x\n", sms_vpf); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 580 | return GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 581 | } |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 582 | gsms->user_data_len = *smsp++; |
| 583 | if (gsms->user_data_len) { |
| 584 | memcpy(gsms->user_data, smsp, gsms->user_data_len); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 585 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 586 | switch (sms_alphabet) { |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 587 | case DCS_7BIT_DEFAULT: |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 588 | gsm_7bit_decode(gsms->text, smsp, gsms->user_data_len); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 589 | break; |
| 590 | case DCS_8BIT_DATA: |
| 591 | case DCS_UCS2: |
| 592 | case DCS_NONE: |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 593 | break; |
| 594 | } |
| 595 | } |
| 596 | |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 597 | gsms->sender = subscr_get(msg->lchan->subscr); |
| 598 | |
| 599 | LOGP(DSMS, LOGL_INFO, "RX SMS: Sender: %s, MTI: 0x%02x, VPF: 0x%02x, " |
| 600 | "MR: 0x%02x PID: 0x%02x, DCS: 0x%02x, DA: %s, " |
| 601 | "UserDataLength: 0x%02x, UserData: \"%s\"\n", |
| 602 | subscr_name(gsms->sender), sms_mti, sms_vpf, gsms->msg_ref, |
| 603 | gsms->protocol_id, gsms->data_coding_scheme, gsms->dest_addr, |
| 604 | gsms->user_data_len, |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 605 | sms_alphabet == DCS_7BIT_DEFAULT ? gsms->text : |
| 606 | hexdump(gsms->user_data, gsms->user_data_len)); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 607 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 608 | gsms->validity_minutes = gsm340_validity_period(sms_vpf, sms_vp); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 609 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 610 | dispatch_signal(SS_SMS, 0, gsms); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 611 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 612 | /* determine gsms->receiver based on dialled number */ |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 613 | gsms->receiver = subscr_get_by_extension(bts->network, gsms->dest_addr); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 614 | if (!gsms->receiver) { |
| 615 | rc = 1; /* cause 1: unknown subscriber */ |
Harald Welte | bdbb744 | 2009-12-22 19:07:32 +0100 | [diff] [blame] | 616 | counter_inc(bts->network->stats.sms.no_receiver); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 617 | goto out; |
| 618 | } |
| 619 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 620 | switch (sms_mti) { |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 621 | case GSM340_SMS_SUBMIT_MS2SC: |
| 622 | /* MS is submitting a SMS */ |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 623 | rc = gsm340_rx_sms_submit(msg, gsms); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 624 | break; |
| 625 | case GSM340_SMS_COMMAND_MS2SC: |
| 626 | case GSM340_SMS_DELIVER_REP_MS2SC: |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 627 | LOGP(DSMS, LOGL_NOTICE, "Unimplemented MTI 0x%02x\n", sms_mti); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 628 | rc = GSM411_RP_CAUSE_IE_NOTEXIST; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 629 | break; |
| 630 | default: |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 631 | LOGP(DSMS, LOGL_NOTICE, "Undefined MTI 0x%02x\n", sms_mti); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 632 | rc = GSM411_RP_CAUSE_IE_NOTEXIST; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 633 | break; |
| 634 | } |
| 635 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 636 | if (!rc && !gsms->receiver) |
| 637 | rc = GSM411_RP_CAUSE_MO_NUM_UNASSIGNED; |
| 638 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 639 | out: |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 640 | sms_free(gsms); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 641 | |
| 642 | return rc; |
| 643 | } |
| 644 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 645 | static int gsm411_send_rp_ack(struct gsm_trans *trans, u_int8_t msg_ref) |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 646 | { |
| 647 | struct msgb *msg = gsm411_msgb_alloc(); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 648 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 649 | DEBUGP(DSMS, "TX: SMS RP ACK\n"); |
| 650 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 651 | return gsm411_rp_sendmsg(msg, trans, GSM411_MT_RP_ACK_MT, msg_ref); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 652 | } |
| 653 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 654 | static int gsm411_send_rp_error(struct gsm_trans *trans, |
| 655 | u_int8_t msg_ref, u_int8_t cause) |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 656 | { |
| 657 | struct msgb *msg = gsm411_msgb_alloc(); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 658 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 659 | msgb_tv_put(msg, 1, cause); |
| 660 | |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 661 | LOGP(DSMS, LOGL_NOTICE, "TX: SMS RP ERROR, cause %d (%s)\n", cause, |
Harald Welte (local) | cb4715c | 2009-08-14 10:42:43 +0200 | [diff] [blame] | 662 | get_value_string(rp_cause_strs, cause)); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 663 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 664 | return gsm411_rp_sendmsg(msg, trans, GSM411_MT_RP_ERROR_MT, msg_ref); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 665 | } |
| 666 | |
| 667 | /* Receive a 04.11 TPDU inside RP-DATA / user data */ |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 668 | static int gsm411_rx_rp_ud(struct msgb *msg, struct gsm_trans *trans, |
| 669 | struct gsm411_rp_hdr *rph, |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 670 | u_int8_t src_len, u_int8_t *src, |
| 671 | u_int8_t dst_len, u_int8_t *dst, |
| 672 | u_int8_t tpdu_len, u_int8_t *tpdu) |
| 673 | { |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 674 | int rc = 0; |
| 675 | |
| 676 | if (src_len && src) |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 677 | LOGP(DSMS, LOGL_ERROR, "RP-DATA (MO) with SRC ?!?\n"); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 678 | |
| 679 | if (!dst_len || !dst || !tpdu_len || !tpdu) { |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 680 | LOGP(DSMS, LOGL_ERROR, |
| 681 | "RP-DATA (MO) without DST or TPDU ?!?\n"); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 682 | gsm411_send_rp_error(trans, rph->msg_ref, |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 683 | GSM411_RP_CAUSE_INV_MAND_INF); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 684 | return -EIO; |
| 685 | } |
| 686 | msg->smsh = tpdu; |
| 687 | |
| 688 | DEBUGP(DSMS, "DST(%u,%s)\n", dst_len, hexdump(dst, dst_len)); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 689 | |
| 690 | rc = gsm340_rx_tpdu(msg); |
| 691 | if (rc == 0) |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 692 | return gsm411_send_rp_ack(trans, rph->msg_ref); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 693 | else if (rc > 0) |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 694 | return gsm411_send_rp_error(trans, rph->msg_ref, rc); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 695 | else |
| 696 | return rc; |
| 697 | } |
| 698 | |
| 699 | /* Receive a 04.11 RP-DATA message in accordance with Section 7.3.1.2 */ |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 700 | static int gsm411_rx_rp_data(struct msgb *msg, struct gsm_trans *trans, |
| 701 | struct gsm411_rp_hdr *rph) |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 702 | { |
| 703 | u_int8_t src_len, dst_len, rpud_len; |
| 704 | u_int8_t *src = NULL, *dst = NULL , *rp_ud = NULL; |
| 705 | |
| 706 | /* in the MO case, this should always be zero length */ |
| 707 | src_len = rph->data[0]; |
| 708 | if (src_len) |
| 709 | src = &rph->data[1]; |
| 710 | |
| 711 | dst_len = rph->data[1+src_len]; |
| 712 | if (dst_len) |
| 713 | dst = &rph->data[1+src_len+1]; |
| 714 | |
| 715 | rpud_len = rph->data[1+src_len+1+dst_len]; |
| 716 | if (rpud_len) |
| 717 | rp_ud = &rph->data[1+src_len+1+dst_len+1]; |
| 718 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 719 | DEBUGP(DSMS, "RX_RP-DATA: src_len=%u, dst_len=%u ud_len=%u\n", |
| 720 | src_len, dst_len, rpud_len); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 721 | return gsm411_rx_rp_ud(msg, trans, rph, src_len, src, dst_len, dst, |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 722 | rpud_len, rp_ud); |
| 723 | } |
| 724 | |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 725 | /* Receive a 04.11 RP-ACK message (response to RP-DATA from us) */ |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 726 | static int gsm411_rx_rp_ack(struct msgb *msg, struct gsm_trans *trans, |
| 727 | struct gsm411_rp_hdr *rph) |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 728 | { |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 729 | struct gsm_sms *sms = trans->sms.sms; |
| 730 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 731 | /* Acnkowledgement to MT RP_DATA, i.e. the MS confirms it |
| 732 | * successfully received a SMS. We can now safely mark it as |
| 733 | * transmitted */ |
| 734 | |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 735 | if (!trans->sms.is_mt) { |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 736 | LOGP(DSMS, LOGL_ERROR, "RX RP-ACK on a MO transfer ?\n"); |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 737 | return gsm411_send_rp_error(trans, rph->msg_ref, |
| 738 | GSM411_RP_CAUSE_MSG_INCOMP_STATE); |
| 739 | } |
Harald Welte | dd62b16 | 2009-07-09 23:52:59 +0200 | [diff] [blame] | 740 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 741 | if (!sms) { |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 742 | LOGP(DSMS, LOGL_ERROR, "RX RP-ACK but no sms in transaction?!?\n"); |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 743 | return gsm411_send_rp_error(trans, rph->msg_ref, |
| 744 | GSM411_RP_CAUSE_PROTOCOL_ERR); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 745 | } |
| 746 | |
| 747 | /* mark this SMS as sent in database */ |
| 748 | db_sms_mark_sent(sms); |
| 749 | |
| 750 | dispatch_signal(SS_SMS, S_SMS_DELIVERED, sms); |
| 751 | |
| 752 | sms_free(sms); |
| 753 | trans->sms.sms = NULL; |
| 754 | |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 755 | /* check for more messages for this subscriber */ |
| 756 | sms = db_sms_get_unsent_for_subscr(msg->lchan->subscr); |
| 757 | if (sms) |
| 758 | gsm411_send_sms_lchan(msg->lchan, sms); |
Sylvain Munaut | d17cdeb | 2009-12-24 13:33:51 +0100 | [diff] [blame] | 759 | |
| 760 | /* free the transaction here */ |
| 761 | trans_free(trans); |
| 762 | |
| 763 | /* release channel if done */ |
| 764 | if (!sms) |
Harald Welte (local) | 64994ce | 2009-08-14 11:41:12 +0200 | [diff] [blame] | 765 | rsl_release_request(msg->lchan, trans->sms.link_id); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 766 | |
| 767 | return 0; |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 768 | } |
| 769 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 770 | static int gsm411_rx_rp_error(struct msgb *msg, struct gsm_trans *trans, |
| 771 | struct gsm411_rp_hdr *rph) |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 772 | { |
Harald Welte | bdbb744 | 2009-12-22 19:07:32 +0100 | [diff] [blame] | 773 | struct gsm_network *net = trans->lchan->ts->trx->bts->network; |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 774 | struct gsm_sms *sms = trans->sms.sms; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 775 | u_int8_t cause_len = rph->data[0]; |
| 776 | u_int8_t cause = rph->data[1]; |
| 777 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 778 | /* Error in response to MT RP_DATA, i.e. the MS did not |
| 779 | * successfully receive the SMS. We need to investigate |
| 780 | * the cause and take action depending on it */ |
| 781 | |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 782 | LOGP(DSMS, LOGL_NOTICE, "%s: RX SMS RP-ERROR, cause %d:%d (%s)\n", |
| 783 | subscr_name(msg->lchan->subscr), cause_len, cause, |
| 784 | get_value_string(rp_cause_strs, cause)); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 785 | |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 786 | if (!trans->sms.is_mt) { |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 787 | LOGP(DSMS, LOGL_ERROR, "RX RP-ERR on a MO transfer ?\n"); |
Harald Welte (local) | ced09ed | 2009-08-17 09:39:55 +0200 | [diff] [blame] | 788 | #if 0 |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 789 | return gsm411_send_rp_error(trans, rph->msg_ref, |
| 790 | GSM411_RP_CAUSE_MSG_INCOMP_STATE); |
Harald Welte (local) | ced09ed | 2009-08-17 09:39:55 +0200 | [diff] [blame] | 791 | #endif |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 792 | } |
Harald Welte | dd62b16 | 2009-07-09 23:52:59 +0200 | [diff] [blame] | 793 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 794 | if (!sms) { |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 795 | LOGP(DSMS, LOGL_ERROR, |
| 796 | "RX RP-ERR, but no sms in transaction?!?\n"); |
Harald Welte (local) | ced09ed | 2009-08-17 09:39:55 +0200 | [diff] [blame] | 797 | return -EINVAL; |
| 798 | #if 0 |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 799 | return gsm411_send_rp_error(trans, rph->msg_ref, |
| 800 | GSM411_RP_CAUSE_PROTOCOL_ERR); |
Harald Welte (local) | ced09ed | 2009-08-17 09:39:55 +0200 | [diff] [blame] | 801 | #endif |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 802 | } |
| 803 | |
| 804 | if (cause == GSM411_RP_CAUSE_MT_MEM_EXCEEDED) { |
| 805 | /* MS has not enough memory to store the message. We need |
| 806 | * to store this in our database and wati for a SMMA message */ |
| 807 | /* FIXME */ |
| 808 | dispatch_signal(SS_SMS, S_SMS_MEM_EXCEEDED, trans->subscr); |
Harald Welte | bdbb744 | 2009-12-22 19:07:32 +0100 | [diff] [blame] | 809 | counter_inc(net->stats.sms.rp_err_mem); |
Harald Welte | 3edc5a9 | 2009-12-22 00:41:05 +0100 | [diff] [blame] | 810 | } else |
Harald Welte | bdbb744 | 2009-12-22 19:07:32 +0100 | [diff] [blame] | 811 | counter_inc(net->stats.sms.rp_err_other); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 812 | |
| 813 | sms_free(sms); |
| 814 | trans->sms.sms = NULL; |
| 815 | |
Harald Welte (local) | 9d0bd79 | 2009-08-14 14:52:17 +0200 | [diff] [blame] | 816 | //trans_free(trans); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 817 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 818 | return 0; |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 819 | } |
| 820 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 821 | static int gsm411_rx_rp_smma(struct msgb *msg, struct gsm_trans *trans, |
| 822 | struct gsm411_rp_hdr *rph) |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 823 | { |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 824 | struct gsm_sms *sms; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 825 | int rc; |
| 826 | |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 827 | rc = gsm411_send_rp_ack(trans, rph->msg_ref); |
| 828 | trans->sms.rp_state = GSM411_RPS_IDLE; |
| 829 | |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 830 | /* MS tells us that it has memory for more SMS, we need |
| 831 | * to check if we have any pending messages for it and then |
| 832 | * transfer those */ |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 833 | dispatch_signal(SS_SMS, S_SMS_SMMA, trans->subscr); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 834 | |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 835 | /* check for more messages for this subscriber */ |
| 836 | sms = db_sms_get_unsent_for_subscr(msg->lchan->subscr); |
| 837 | if (sms) |
| 838 | gsm411_send_sms_lchan(msg->lchan, sms); |
| 839 | else |
Harald Welte (local) | 64994ce | 2009-08-14 11:41:12 +0200 | [diff] [blame] | 840 | rsl_release_request(msg->lchan, trans->sms.link_id); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 841 | |
| 842 | return rc; |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 843 | } |
| 844 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 845 | static int gsm411_rx_cp_data(struct msgb *msg, struct gsm48_hdr *gh, |
| 846 | struct gsm_trans *trans) |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 847 | { |
| 848 | struct gsm411_rp_hdr *rp_data = (struct gsm411_rp_hdr*)&gh->data; |
| 849 | u_int8_t msg_type = rp_data->msg_type & 0x07; |
| 850 | int rc = 0; |
| 851 | |
| 852 | switch (msg_type) { |
| 853 | case GSM411_MT_RP_DATA_MO: |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 854 | DEBUGP(DSMS, "RX SMS RP-DATA (MO)\n"); |
| 855 | /* start TR2N and enter 'wait to send RP-ACK state' */ |
| 856 | trans->sms.rp_state = GSM411_RPS_WAIT_TO_TX_RP_ACK; |
| 857 | rc = gsm411_rx_rp_data(msg, trans, rp_data); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 858 | break; |
| 859 | case GSM411_MT_RP_ACK_MO: |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 860 | DEBUGP(DSMS,"RX SMS RP-ACK (MO)\n"); |
| 861 | rc = gsm411_rx_rp_ack(msg, trans, rp_data); |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 862 | break; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 863 | case GSM411_MT_RP_SMMA_MO: |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 864 | DEBUGP(DSMS, "RX SMS RP-SMMA\n"); |
| 865 | /* start TR2N and enter 'wait to send RP-ACK state' */ |
| 866 | trans->sms.rp_state = GSM411_RPS_WAIT_TO_TX_RP_ACK; |
| 867 | rc = gsm411_rx_rp_smma(msg, trans, rp_data); |
| 868 | break; |
| 869 | case GSM411_MT_RP_ERROR_MO: |
| 870 | rc = gsm411_rx_rp_error(msg, trans, rp_data); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 871 | break; |
| 872 | default: |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 873 | LOGP(DSMS, LOGL_NOTICE, "Invalid RP type 0x%02x\n", msg_type); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 874 | rc = gsm411_send_rp_error(trans, rp_data->msg_ref, |
| 875 | GSM411_RP_CAUSE_MSGTYPE_NOTEXIST); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 876 | break; |
| 877 | } |
| 878 | |
| 879 | return rc; |
| 880 | } |
| 881 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 882 | /* send CP-ACK to given transaction */ |
| 883 | static int gsm411_tx_cp_ack(struct gsm_trans *trans) |
| 884 | { |
| 885 | struct msgb *msg = gsm411_msgb_alloc(); |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 886 | int rc; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 887 | |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 888 | rc = gsm411_cp_sendmsg(msg, trans, GSM411_MT_CP_ACK); |
| 889 | |
| 890 | if (trans->sms.is_mt) { |
| 891 | /* If this is a MT SMS DELIVER, we can clear transaction here */ |
| 892 | trans->sms.cp_state = GSM411_CPS_IDLE; |
Harald Welte (local) | 9d0bd79 | 2009-08-14 14:52:17 +0200 | [diff] [blame] | 893 | //trans_free(trans); |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 894 | } |
Holger Hans Peter Freyther | 182c745 | 2009-08-10 07:59:27 +0200 | [diff] [blame] | 895 | |
| 896 | return rc; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 897 | } |
| 898 | |
| 899 | static int gsm411_tx_cp_error(struct gsm_trans *trans, u_int8_t cause) |
| 900 | { |
| 901 | struct msgb *msg = gsm411_msgb_alloc(); |
| 902 | u_int8_t *causep; |
| 903 | |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 904 | LOGP(DSMS, LOGL_NOTICE, "TX CP-ERROR, cause %d (%s)\n", cause, |
Harald Welte (local) | cb4715c | 2009-08-14 10:42:43 +0200 | [diff] [blame] | 905 | get_value_string(cp_cause_strs, cause)); |
| 906 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 907 | causep = msgb_put(msg, 1); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 908 | *causep = cause; |
| 909 | |
| 910 | return gsm411_cp_sendmsg(msg, trans, GSM411_MT_CP_ERROR); |
| 911 | } |
| 912 | |
| 913 | /* Entry point for incoming GSM48_PDISC_SMS from abis_rsl.c */ |
Harald Welte (local) | 64994ce | 2009-08-14 11:41:12 +0200 | [diff] [blame] | 914 | int gsm0411_rcv_sms(struct msgb *msg, u_int8_t link_id) |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 915 | { |
| 916 | struct gsm48_hdr *gh = msgb_l3(msg); |
| 917 | u_int8_t msg_type = gh->msg_type; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 918 | u_int8_t transaction_id = ((gh->proto_discr >> 4) ^ 0x8); /* flip */ |
| 919 | struct gsm_lchan *lchan = msg->lchan; |
| 920 | struct gsm_trans *trans; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 921 | int rc = 0; |
| 922 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 923 | if (!lchan->subscr) |
| 924 | return -EIO; |
| 925 | /* FIXME: send some error message */ |
| 926 | |
Sylvain Munaut | e02fb9a | 2009-12-18 18:28:08 +0100 | [diff] [blame] | 927 | DEBUGP(DSMS, "trans_id=%x ", transaction_id); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 928 | trans = trans_find_by_id(lchan->subscr, GSM48_PDISC_SMS, |
| 929 | transaction_id); |
| 930 | if (!trans) { |
Sylvain Munaut | 40c2332 | 2009-12-18 18:28:09 +0100 | [diff] [blame] | 931 | DEBUGPC(DSMS, "(new) "); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 932 | trans = trans_alloc(lchan->subscr, GSM48_PDISC_SMS, |
| 933 | transaction_id, new_callref++); |
| 934 | if (!trans) { |
Harald Welte (local) | cb4715c | 2009-08-14 10:42:43 +0200 | [diff] [blame] | 935 | DEBUGPC(DSMS, "No memory for trans\n"); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 936 | /* FIXME: send some error message */ |
| 937 | return -ENOMEM; |
| 938 | } |
| 939 | trans->sms.cp_state = GSM411_CPS_IDLE; |
| 940 | trans->sms.rp_state = GSM411_RPS_IDLE; |
| 941 | trans->sms.is_mt = 0; |
Harald Welte (local) | 64994ce | 2009-08-14 11:41:12 +0200 | [diff] [blame] | 942 | trans->sms.link_id = link_id; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 943 | |
| 944 | trans->lchan = lchan; |
| 945 | use_lchan(lchan); |
| 946 | } |
| 947 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 948 | switch(msg_type) { |
| 949 | case GSM411_MT_CP_DATA: |
Harald Welte (local) | cb4715c | 2009-08-14 10:42:43 +0200 | [diff] [blame] | 950 | DEBUGPC(DSMS, "RX SMS CP-DATA\n"); |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 951 | /* 5.2.3.1.3: MO state exists when SMC has received |
| 952 | * CP-DATA, including sending of the assoc. CP-ACK */ |
| 953 | /* 5.2.3.2.4: MT state exists when SMC has received |
| 954 | * CP-DATA, including sending of the assoc. CP-ACK */ |
| 955 | trans->sms.cp_state = GSM411_CPS_MM_ESTABLISHED; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 956 | |
Harald Welte (local) | 64994ce | 2009-08-14 11:41:12 +0200 | [diff] [blame] | 957 | /* SMC instance acknowledges the CP-DATA frame */ |
| 958 | gsm411_tx_cp_ack(trans); |
| 959 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 960 | rc = gsm411_rx_cp_data(msg, gh, trans); |
Harald Welte (local) | 64994ce | 2009-08-14 11:41:12 +0200 | [diff] [blame] | 961 | #if 0 |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 962 | /* Send CP-ACK or CP-ERORR in response */ |
| 963 | if (rc < 0) { |
| 964 | rc = gsm411_tx_cp_error(trans, GSM411_CP_CAUSE_NET_FAIL); |
| 965 | } else |
| 966 | rc = gsm411_tx_cp_ack(trans); |
Harald Welte (local) | 64994ce | 2009-08-14 11:41:12 +0200 | [diff] [blame] | 967 | #endif |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 968 | break; |
| 969 | case GSM411_MT_CP_ACK: |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 970 | /* previous CP-DATA in this transaction was confirmed */ |
Harald Welte (local) | cb4715c | 2009-08-14 10:42:43 +0200 | [diff] [blame] | 971 | DEBUGPC(DSMS, "RX SMS CP-ACK\n"); |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 972 | /* 5.2.3.1.3: MO state exists when SMC has received CP-ACK */ |
| 973 | /* 5.2.3.2.4: MT state exists when SMC has received CP-ACK */ |
| 974 | trans->sms.cp_state = GSM411_CPS_MM_ESTABLISHED; |
Harald Welte | 5fa17a2 | 2009-08-10 00:24:32 +0200 | [diff] [blame] | 975 | /* Stop TC1* after CP-ACK has been received */ |
| 976 | bsc_del_timer(&trans->sms.cp_timer); |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 977 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 978 | if (!trans->sms.is_mt) { |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 979 | /* FIXME: we have sont one CP-DATA, which was now |
| 980 | * acknowledged. Check if we want to transfer more, |
| 981 | * i.e. multi-part message */ |
| 982 | trans->sms.cp_state = GSM411_CPS_IDLE; |
| 983 | trans_free(trans); |
| 984 | } |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 985 | break; |
| 986 | case GSM411_MT_CP_ERROR: |
Harald Welte (local) | cb4715c | 2009-08-14 10:42:43 +0200 | [diff] [blame] | 987 | DEBUGPC(DSMS, "RX SMS CP-ERROR, cause %d (%s)\n", gh->data[0], |
| 988 | get_value_string(cp_cause_strs, gh->data[0])); |
Harald Welte | 5fa17a2 | 2009-08-10 00:24:32 +0200 | [diff] [blame] | 989 | bsc_del_timer(&trans->sms.cp_timer); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 990 | trans->sms.cp_state = GSM411_CPS_IDLE; |
| 991 | trans_free(trans); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 992 | break; |
| 993 | default: |
Harald Welte (local) | cb4715c | 2009-08-14 10:42:43 +0200 | [diff] [blame] | 994 | DEBUGPC(DSMS, "RX Unimplemented CP msg_type: 0x%02x\n", msg_type); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 995 | rc = gsm411_tx_cp_error(trans, GSM411_CP_CAUSE_MSGTYPE_NOTEXIST); |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 996 | trans->sms.cp_state = GSM411_CPS_IDLE; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 997 | trans_free(trans); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 998 | break; |
| 999 | } |
| 1000 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1001 | return rc; |
| 1002 | } |
| 1003 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1004 | #if 0 |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1005 | /* Test TPDU - ALL YOUR */ |
| 1006 | static u_int8_t tpdu_test[] = { |
| 1007 | 0x04, 0x04, 0x81, 0x32, 0x24, 0x00, 0x00, 0x80, 0x21, 0x03, 0x41, 0x24, |
| 1008 | 0x32, 0x40, 0x1F, 0x41, 0x26, 0x13, 0x94, 0x7D, 0x56, 0xA5, 0x20, 0x28, |
| 1009 | 0xF2, 0xE9, 0x2C, 0x82, 0x82, 0xD2, 0x22, 0x48, 0x58, 0x64, 0x3E, 0x9D, |
| 1010 | 0x47, 0x10, 0xF5, 0x09, 0xAA, 0x4E, 0x01 |
| 1011 | }; |
| 1012 | #endif |
| 1013 | |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1014 | /* Take a SMS in gsm_sms structure and send it through an already |
| 1015 | * existing lchan. We also assume that the caller ensured this lchan already |
| 1016 | * has a SAPI3 RLL connection! */ |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1017 | int gsm411_send_sms_lchan(struct gsm_lchan *lchan, struct gsm_sms *sms) |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1018 | { |
| 1019 | struct msgb *msg = gsm411_msgb_alloc(); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1020 | struct gsm_trans *trans; |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1021 | u_int8_t *data, *rp_ud_len; |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 1022 | u_int8_t msg_ref = 42; |
Sylvain Munaut | e65af1b | 2009-12-24 13:27:36 +0100 | [diff] [blame] | 1023 | int transaction_id; |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1024 | int rc; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1025 | |
Harald Welte | 6e55abf | 2009-12-22 13:45:58 +0100 | [diff] [blame] | 1026 | transaction_id = trans_assign_trans_id(lchan->subscr, GSM48_PDISC_SMS, 0); |
| 1027 | if (transaction_id == -1) { |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 1028 | LOGP(DSMS, LOGL_ERROR, "No available transaction ids\n"); |
Harald Welte | 6e55abf | 2009-12-22 13:45:58 +0100 | [diff] [blame] | 1029 | return -EBUSY; |
| 1030 | } |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1031 | |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1032 | msg->lchan = lchan; |
| 1033 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1034 | DEBUGP(DSMS, "send_sms_lchan()\n"); |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1035 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1036 | /* FIXME: allocate transaction with message reference */ |
| 1037 | trans = trans_alloc(lchan->subscr, GSM48_PDISC_SMS, |
| 1038 | transaction_id, new_callref++); |
| 1039 | if (!trans) { |
Harald Welte | ced9a91 | 2009-12-24 15:08:18 +0100 | [diff] [blame] | 1040 | LOGP(DSMS, LOGL_ERROR, "No memory for trans\n"); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1041 | /* FIXME: send some error message */ |
| 1042 | return -ENOMEM; |
| 1043 | } |
| 1044 | trans->sms.cp_state = GSM411_CPS_IDLE; |
| 1045 | trans->sms.rp_state = GSM411_RPS_IDLE; |
| 1046 | trans->sms.is_mt = 1; |
| 1047 | trans->sms.sms = sms; |
Harald Welte (local) | 64994ce | 2009-08-14 11:41:12 +0200 | [diff] [blame] | 1048 | trans->sms.link_id = UM_SAPI_SMS; /* FIXME: main or SACCH ? */ |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1049 | |
| 1050 | trans->lchan = lchan; |
| 1051 | use_lchan(lchan); |
| 1052 | |
| 1053 | /* Hardcode SMSC Originating Address for now */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1054 | data = (u_int8_t *)msgb_put(msg, 8); |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 1055 | data[0] = 0x07; /* originator length == 7 */ |
Harald Welte | 156c5e6 | 2009-07-05 14:02:46 +0200 | [diff] [blame] | 1056 | data[1] = 0x91; /* type of number: international, ISDN */ |
| 1057 | data[2] = 0x44; /* 447785016005 */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1058 | data[3] = 0x77; |
| 1059 | data[4] = 0x58; |
| 1060 | data[5] = 0x10; |
| 1061 | data[6] = 0x06; |
| 1062 | data[7] = 0x50; |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 1063 | |
| 1064 | /* Hardcoded Destination Address */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1065 | data = (u_int8_t *)msgb_put(msg, 1); |
Harald Welte | 7e2f57d | 2009-07-04 17:39:00 +0200 | [diff] [blame] | 1066 | data[0] = 0; /* destination length == 0 */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1067 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1068 | /* obtain a pointer for the rp_ud_len, so we can fill it later */ |
| 1069 | rp_ud_len = (u_int8_t *)msgb_put(msg, 1); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1070 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1071 | #if 1 |
| 1072 | /* generate the 03.40 TPDU */ |
| 1073 | rc = gsm340_gen_tpdu(msg, sms); |
| 1074 | if (rc < 0) { |
| 1075 | msgb_free(msg); |
| 1076 | return rc; |
| 1077 | } |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1078 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1079 | *rp_ud_len = rc; |
| 1080 | #else |
| 1081 | data = msgb_put(msg, sizeof(tpdu_test)); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1082 | memcpy(data, tpdu_test, sizeof(tpdu_test)); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1083 | *rp_ud_len = sizeof(tpdu_test); |
| 1084 | #endif |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1085 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1086 | DEBUGP(DSMS, "TX: SMS DELIVER\n"); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1087 | |
Harald Welte | bdbb744 | 2009-12-22 19:07:32 +0100 | [diff] [blame] | 1088 | counter_inc(lchan->ts->trx->bts->network->stats.sms.delivered); |
Harald Welte | 3edc5a9 | 2009-12-22 00:41:05 +0100 | [diff] [blame] | 1089 | |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1090 | return gsm411_rp_sendmsg(msg, trans, GSM411_MT_RP_DATA_MT, msg_ref); |
| 1091 | /* FIXME: enter 'wait for RP-ACK' state, start TR1N */ |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1092 | } |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1093 | |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1094 | /* RLL SAPI3 establish callback. Now we have a RLL connection and |
| 1095 | * can deliver the actual message */ |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 1096 | static void rll_ind_cb(struct gsm_lchan *lchan, u_int8_t link_id, |
| 1097 | void *_sms, enum bsc_rllr_ind type) |
| 1098 | { |
| 1099 | struct gsm_sms *sms = _sms; |
| 1100 | |
| 1101 | DEBUGP(DSMS, "rll_ind_cb(lchan=%p, link_id=%u, sms=%p, type=%u\n", |
| 1102 | lchan, link_id, sms, type); |
| 1103 | |
| 1104 | switch (type) { |
| 1105 | case BSC_RLLR_IND_EST_CONF: |
| 1106 | gsm411_send_sms_lchan(lchan, sms); |
| 1107 | break; |
| 1108 | case BSC_RLLR_IND_REL_IND: |
| 1109 | case BSC_RLLR_IND_ERR_IND: |
| 1110 | case BSC_RLLR_IND_TIMEOUT: |
| 1111 | sms_free(sms); |
| 1112 | break; |
| 1113 | } |
| 1114 | } |
| 1115 | |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1116 | /* paging callback. Here we get called if paging a subscriber has |
| 1117 | * succeeded or failed. */ |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1118 | static int paging_cb_send_sms(unsigned int hooknum, unsigned int event, |
| 1119 | struct msgb *msg, void *_lchan, void *_sms) |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1120 | { |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1121 | struct gsm_lchan *lchan = _lchan; |
| 1122 | struct gsm_sms *sms = _sms; |
| 1123 | int rc; |
Harald Welte | b78996d | 2009-07-27 20:11:35 +0200 | [diff] [blame] | 1124 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1125 | DEBUGP(DSMS, "paging_cb_send_sms(hooknum=%u, event=%u, msg=%p," |
| 1126 | "lchan=%p, sms=%p)\n", hooknum, event, msg, lchan, sms); |
| 1127 | |
| 1128 | if (hooknum != GSM_HOOK_RR_PAGING) |
| 1129 | return -EINVAL; |
| 1130 | |
| 1131 | switch (event) { |
| 1132 | case GSM_PAGING_SUCCEEDED: |
| 1133 | /* Paging aborted without lchan ?!? */ |
| 1134 | if (!lchan) { |
| 1135 | sms_free(sms); |
| 1136 | rc = -EIO; |
| 1137 | break; |
| 1138 | } |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1139 | /* Establish a SAPI3 RLL connection for SMS */ |
Harald Welte | 09421d3 | 2009-08-09 14:59:02 +0200 | [diff] [blame] | 1140 | rc = rll_establish(lchan, UM_SAPI_SMS, rll_ind_cb, sms); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1141 | break; |
| 1142 | case GSM_PAGING_EXPIRED: |
| 1143 | sms_free(sms); |
| 1144 | rc = -ETIMEDOUT; |
| 1145 | break; |
| 1146 | default: |
| 1147 | rc = -EINVAL; |
| 1148 | break; |
| 1149 | } |
| 1150 | |
| 1151 | return rc; |
| 1152 | } |
| 1153 | |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1154 | /* high-level function to send a SMS to a given subscriber. The function |
| 1155 | * will take care of paging the subscriber, establishing the RLL SAPI3 |
| 1156 | * connection, etc. */ |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1157 | int gsm411_send_sms_subscr(struct gsm_subscriber *subscr, |
| 1158 | struct gsm_sms *sms) |
| 1159 | { |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1160 | struct gsm_lchan *lchan; |
Harald Welte | d363c95 | 2009-08-15 03:16:17 +0200 | [diff] [blame] | 1161 | int rc; |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1162 | |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1163 | /* check if we already have an open lchan to the subscriber. |
| 1164 | * if yes, send the SMS this way */ |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1165 | lchan = lchan_for_subscr(subscr); |
| 1166 | if (lchan) |
| 1167 | return rll_establish(lchan, UM_SAPI_SMS, |
| 1168 | rll_ind_cb, sms); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1169 | |
| 1170 | /* if not, we have to start paging */ |
Harald Welte | d363c95 | 2009-08-15 03:16:17 +0200 | [diff] [blame] | 1171 | rc = paging_request(subscr->net, subscr, RSL_CHANNEED_SDCCH, |
| 1172 | paging_cb_send_sms, sms); |
Harald Welte (local) | dec08ee | 2009-08-15 11:25:45 +0200 | [diff] [blame] | 1173 | if (rc <= 0) |
Harald Welte | d363c95 | 2009-08-15 03:16:17 +0200 | [diff] [blame] | 1174 | sms_free(sms); |
Harald Welte | 68b7df2 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 1175 | |
| 1176 | return 0; |
| 1177 | } |
Harald Welte | 5b359d8 | 2009-07-28 00:44:49 +0200 | [diff] [blame] | 1178 | |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1179 | static int subscr_sig_cb(unsigned int subsys, unsigned int signal, |
| 1180 | void *handler_data, void *signal_data) |
| 1181 | { |
| 1182 | struct gsm_subscriber *subscr; |
| 1183 | struct gsm_lchan *lchan; |
| 1184 | struct gsm_sms *sms; |
| 1185 | |
| 1186 | switch (signal) { |
| 1187 | case S_SUBSCR_ATTACHED: |
| 1188 | /* A subscriber has attached. Check if there are |
| 1189 | * any pending SMS for him to be delivered */ |
| 1190 | subscr = signal_data; |
| 1191 | lchan = lchan_for_subscr(subscr); |
| 1192 | if (!lchan) |
| 1193 | break; |
| 1194 | sms = db_sms_get_unsent_for_subscr(subscr); |
| 1195 | if (!sms) |
| 1196 | break; |
| 1197 | /* Establish a SAPI3 RLL connection for SMS */ |
| 1198 | rll_establish(lchan, UM_SAPI_SMS, rll_ind_cb, sms); |
| 1199 | break; |
| 1200 | default: |
| 1201 | break; |
| 1202 | } |
| 1203 | return 0; |
| 1204 | } |
| 1205 | |
Harald Welte (local) | 9d0bd79 | 2009-08-14 14:52:17 +0200 | [diff] [blame] | 1206 | void _gsm411_sms_trans_free(struct gsm_trans *trans) |
| 1207 | { |
| 1208 | bsc_del_timer(&trans->sms.cp_timer); |
| 1209 | } |
| 1210 | |
Harald Welte | 932e20d | 2009-07-28 00:41:45 +0200 | [diff] [blame] | 1211 | static __attribute__((constructor)) void on_dso_load_sms(void) |
| 1212 | { |
Harald Welte | fc01b24 | 2009-08-09 19:07:41 +0200 | [diff] [blame] | 1213 | register_signal_handler(SS_SUBSCR, subscr_sig_cb, NULL); |
Harald Welte | 932e20d | 2009-07-28 00:41:45 +0200 | [diff] [blame] | 1214 | } |