Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 1 | /* MS subscriber data handling */ |
| 2 | |
| 3 | /* (C) 2014 by sysmocom s.f.m.c. GmbH |
| 4 | * |
| 5 | * All Rights Reserved |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU Affero General Public License as published by |
| 9 | * the Free Software Foundation; either version 3 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU Affero General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Affero General Public License |
| 18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 | * |
| 20 | */ |
| 21 | |
| 22 | #include <openbsc/gsm_subscriber.h> |
Jacob Erlbeck | 39f040d | 2014-12-18 12:46:47 +0100 | [diff] [blame] | 23 | #include <openbsc/gprs_gsup_client.h> |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 24 | |
| 25 | #include <openbsc/sgsn.h> |
| 26 | #include <openbsc/gprs_sgsn.h> |
| 27 | #include <openbsc/gprs_gmm.h> |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 28 | #include <openbsc/gprs_gsup_messages.h> |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 29 | |
| 30 | #include <openbsc/debug.h> |
| 31 | |
Jacob Erlbeck | 39f040d | 2014-12-18 12:46:47 +0100 | [diff] [blame] | 32 | #include <netinet/in.h> |
| 33 | #include <arpa/inet.h> |
| 34 | |
Jacob Erlbeck | 743dec4 | 2015-01-08 15:18:39 +0100 | [diff] [blame] | 35 | #define SGSN_SUBSCR_MAX_RETRIES 3 |
| 36 | #define SGSN_SUBSCR_RETRY_INTERVAL 10 |
| 37 | |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 38 | extern void *tall_bsc_ctx; |
| 39 | |
Jacob Erlbeck | 39f040d | 2014-12-18 12:46:47 +0100 | [diff] [blame] | 40 | static int gsup_read_cb(struct gprs_gsup_client *gsupc, struct msgb *msg); |
| 41 | |
| 42 | /* TODO: Some functions are specific to the SGSN, but this file is more general |
| 43 | * (it has gprs_* name). Either move these functions elsewhere, split them and |
| 44 | * move a part, or replace the gprs_ prefix by sgsn_. The applies to |
| 45 | * gprs_subscr_init, gsup_read_cb, and gprs_subscr_tx_gsup_message. |
| 46 | */ |
| 47 | |
| 48 | int gprs_subscr_init(struct sgsn_instance *sgi) |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 49 | { |
Jacob Erlbeck | 39f040d | 2014-12-18 12:46:47 +0100 | [diff] [blame] | 50 | const char *addr_str; |
| 51 | |
| 52 | if (!sgi->cfg.gsup_server_addr.sin_addr.s_addr) |
| 53 | return 0; |
| 54 | |
| 55 | addr_str = inet_ntoa(sgi->cfg.gsup_server_addr.sin_addr); |
| 56 | |
| 57 | sgi->gsup_client = gprs_gsup_client_create( |
| 58 | addr_str, sgi->cfg.gsup_server_port, |
| 59 | &gsup_read_cb); |
| 60 | |
| 61 | if (!sgi->gsup_client) |
| 62 | return -1; |
| 63 | |
| 64 | return 1; |
| 65 | } |
| 66 | |
| 67 | static int gsup_read_cb(struct gprs_gsup_client *gsupc, struct msgb *msg) |
| 68 | { |
| 69 | int rc; |
| 70 | |
| 71 | rc = gprs_subscr_rx_gsup_message(msg); |
Jacob Erlbeck | e154d8b | 2014-12-19 19:15:55 +0100 | [diff] [blame] | 72 | msgb_free(msg); |
Jacob Erlbeck | 39f040d | 2014-12-18 12:46:47 +0100 | [diff] [blame] | 73 | if (rc < 0) |
| 74 | return -1; |
| 75 | |
| 76 | return rc; |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 77 | } |
| 78 | |
Jacob Erlbeck | f81cacc | 2015-01-08 16:23:25 +0100 | [diff] [blame^] | 79 | static int check_blocking( |
| 80 | struct gsm_subscriber *subscr, |
| 81 | enum sgsn_subscriber_proc what) |
| 82 | { |
| 83 | if (subscr->sgsn_data->blocked_by == SGSN_SUBSCR_PROC_NONE || |
| 84 | subscr->sgsn_data->blocked_by == what) |
| 85 | return 1; |
| 86 | |
| 87 | return 0; |
| 88 | } |
| 89 | |
| 90 | static void abort_blocking_procedure(struct gsm_subscriber *subscr) |
| 91 | { |
| 92 | /* Best effort, stop retries at least */ |
| 93 | subscr->sgsn_data->retries = SGSN_SUBSCR_MAX_RETRIES; |
| 94 | } |
| 95 | |
Jacob Erlbeck | 0f47b8f | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 96 | static void sgsn_subscriber_timeout_cb(void *subscr_); |
| 97 | int gprs_subscr_purge(struct gsm_subscriber *subscr); |
| 98 | |
| 99 | void gprs_subscr_stop_timer(struct gsm_subscriber *subscr) |
| 100 | { |
| 101 | if (subscr->sgsn_data->timer.data) { |
| 102 | osmo_timer_del(&subscr->sgsn_data->timer); |
| 103 | subscr->sgsn_data->timer.cb = NULL; |
| 104 | OSMO_ASSERT(subscr->sgsn_data->timer.data == subscr); |
| 105 | subscr->sgsn_data->timer.data = NULL; |
| 106 | subscr_put(subscr); |
| 107 | } |
| 108 | } |
| 109 | |
| 110 | void gprs_subscr_start_timer(struct gsm_subscriber *subscr, unsigned seconds) |
| 111 | { |
| 112 | if (!subscr->sgsn_data->timer.data) { |
| 113 | subscr->sgsn_data->timer.cb = sgsn_subscriber_timeout_cb; |
| 114 | subscr->sgsn_data->timer.data = subscr_get(subscr); |
Jacob Erlbeck | 743dec4 | 2015-01-08 15:18:39 +0100 | [diff] [blame] | 115 | subscr->sgsn_data->retries = 0; |
Jacob Erlbeck | 0f47b8f | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | osmo_timer_schedule(&subscr->sgsn_data->timer, seconds, 0); |
| 119 | } |
| 120 | |
| 121 | static void sgsn_subscriber_timeout_cb(void *subscr_) |
| 122 | { |
| 123 | struct gsm_subscriber *subscr = subscr_; |
| 124 | |
| 125 | LOGGSUBSCRP(LOGL_INFO, subscr, |
| 126 | "Expired, deleting subscriber entry\n"); |
| 127 | |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 128 | subscr_get(subscr); |
| 129 | |
| 130 | /* Check, whether to cleanup immediately */ |
Jacob Erlbeck | 743dec4 | 2015-01-08 15:18:39 +0100 | [diff] [blame] | 131 | if (!(subscr->flags & GPRS_SUBSCRIBER_ENABLE_PURGE) || |
| 132 | subscr->sgsn_data->retries >= SGSN_SUBSCR_MAX_RETRIES) |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 133 | goto force_cleanup; |
| 134 | |
| 135 | /* Send a 'purge MS' message to the HLR */ |
| 136 | if (gprs_subscr_purge(subscr) < 0) |
| 137 | goto force_cleanup; |
| 138 | |
| 139 | /* Purge request has been sent */ |
| 140 | |
Jacob Erlbeck | 743dec4 | 2015-01-08 15:18:39 +0100 | [diff] [blame] | 141 | /* Check, whether purge is still enabled */ |
| 142 | if (!(subscr->flags & GPRS_SUBSCRIBER_ENABLE_PURGE)) |
| 143 | goto force_cleanup; |
| 144 | |
| 145 | /* Make sure this will be tried again if there is no response in time */ |
| 146 | subscr->sgsn_data->retries += 1; |
| 147 | gprs_subscr_start_timer(subscr, SGSN_SUBSCR_RETRY_INTERVAL); |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 148 | subscr_put(subscr); |
| 149 | return; |
| 150 | |
| 151 | force_cleanup: |
Jacob Erlbeck | f81cacc | 2015-01-08 16:23:25 +0100 | [diff] [blame^] | 152 | /* Make sure to clear blocking */ |
| 153 | if (check_blocking(subscr, SGSN_SUBSCR_PROC_PURGE)) |
| 154 | subscr->sgsn_data->blocked_by = SGSN_SUBSCR_PROC_NONE; |
| 155 | |
Jacob Erlbeck | 0f47b8f | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 156 | /* Make sure, the timer is cleaned up */ |
| 157 | subscr->keep_in_ram = 0; |
| 158 | gprs_subscr_stop_timer(subscr); |
| 159 | /* The subscr is freed now, if the timer was the last user */ |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 160 | subscr_put(subscr); |
Jacob Erlbeck | 0f47b8f | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 161 | } |
| 162 | |
Jacob Erlbeck | a1e0373 | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 163 | static struct sgsn_subscriber_data *sgsn_subscriber_data_alloc(void *ctx) |
| 164 | { |
| 165 | struct sgsn_subscriber_data *sdata; |
Jacob Erlbeck | 7921ab1 | 2014-12-08 15:52:00 +0100 | [diff] [blame] | 166 | int idx; |
Jacob Erlbeck | a1e0373 | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 167 | |
| 168 | sdata = talloc_zero(ctx, struct sgsn_subscriber_data); |
| 169 | |
Jacob Erlbeck | 7921ab1 | 2014-12-08 15:52:00 +0100 | [diff] [blame] | 170 | for (idx = 0; idx < ARRAY_SIZE(sdata->auth_triplets); idx++) |
| 171 | sdata->auth_triplets[idx].key_seq = GSM_KEY_SEQ_INVAL; |
| 172 | |
Jacob Erlbeck | a1e0373 | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 173 | return sdata; |
| 174 | } |
| 175 | |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 176 | struct gsm_subscriber *gprs_subscr_get_or_create(const char *imsi) |
| 177 | { |
| 178 | struct gsm_subscriber *subscr; |
| 179 | |
| 180 | subscr = subscr_get_or_create(NULL, imsi); |
| 181 | if (!subscr) |
| 182 | return NULL; |
| 183 | |
Jacob Erlbeck | a1e0373 | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 184 | if (!subscr->sgsn_data) |
| 185 | subscr->sgsn_data = sgsn_subscriber_data_alloc(subscr); |
| 186 | |
Jacob Erlbeck | 0f47b8f | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 187 | gprs_subscr_stop_timer(subscr); |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 188 | |
| 189 | return subscr; |
| 190 | } |
| 191 | |
| 192 | struct gsm_subscriber *gprs_subscr_get_by_imsi(const char *imsi) |
| 193 | { |
| 194 | return subscr_active_by_imsi(NULL, imsi); |
| 195 | } |
| 196 | |
| 197 | void gprs_subscr_delete(struct gsm_subscriber *subscr) |
| 198 | { |
Jacob Erlbeck | a1e0373 | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 199 | if (subscr->sgsn_data->mm) { |
| 200 | subscr_put(subscr->sgsn_data->mm->subscr); |
| 201 | subscr->sgsn_data->mm->subscr = NULL; |
| 202 | subscr->sgsn_data->mm = NULL; |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 203 | } |
| 204 | |
| 205 | if ((subscr->flags & GPRS_SUBSCRIBER_CANCELLED) || |
Jacob Erlbeck | 0f47b8f | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 206 | (subscr->flags & GSM_SUBSCRIBER_FIRST_CONTACT)) { |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 207 | subscr->keep_in_ram = 0; |
Jacob Erlbeck | 0f47b8f | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 208 | gprs_subscr_stop_timer(subscr); |
| 209 | } else if (sgsn->cfg.subscriber_expiry_timeout != SGSN_TIMEOUT_NEVER) { |
| 210 | gprs_subscr_start_timer(subscr, sgsn->cfg.subscriber_expiry_timeout); |
| 211 | } else { |
| 212 | subscr->keep_in_ram = 1; |
| 213 | } |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 214 | |
| 215 | subscr_put(subscr); |
| 216 | } |
| 217 | |
| 218 | void gprs_subscr_put_and_cancel(struct gsm_subscriber *subscr) |
| 219 | { |
| 220 | subscr->authorized = 0; |
| 221 | subscr->flags |= GPRS_SUBSCRIBER_CANCELLED; |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 222 | subscr->flags &= ~GPRS_SUBSCRIBER_ENABLE_PURGE; |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 223 | |
| 224 | gprs_subscr_update(subscr); |
| 225 | |
| 226 | gprs_subscr_delete(subscr); |
| 227 | } |
| 228 | |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 229 | static int gprs_subscr_tx_gsup_message(struct gsm_subscriber *subscr, |
| 230 | struct gprs_gsup_message *gsup_msg) |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 231 | { |
Jacob Erlbeck | 39f040d | 2014-12-18 12:46:47 +0100 | [diff] [blame] | 232 | struct msgb *msg = gprs_gsup_msgb_alloc(); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 233 | |
| 234 | strncpy(gsup_msg->imsi, subscr->imsi, sizeof(gsup_msg->imsi) - 1); |
| 235 | |
| 236 | gprs_gsup_encode(msg, gsup_msg); |
Jacob Erlbeck | 98a95ac | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 237 | |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 238 | LOGGSUBSCRP(LOGL_INFO, subscr, |
| 239 | "Sending GSUP, will send: %s\n", msgb_hexdump(msg)); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 240 | |
Jacob Erlbeck | 39f040d | 2014-12-18 12:46:47 +0100 | [diff] [blame] | 241 | if (!sgsn->gsup_client) { |
| 242 | msgb_free(msg); |
| 243 | return -ENOTSUP; |
| 244 | } |
| 245 | |
| 246 | return gprs_gsup_client_send(sgsn->gsup_client, msg); |
Jacob Erlbeck | 98a95ac | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 247 | } |
| 248 | |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 249 | static int gprs_subscr_handle_gsup_auth_res(struct gsm_subscriber *subscr, |
| 250 | struct gprs_gsup_message *gsup_msg) |
| 251 | { |
| 252 | unsigned idx; |
| 253 | struct sgsn_subscriber_data *sdata = subscr->sgsn_data; |
| 254 | |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 255 | LOGGSUBSCRP(LOGL_INFO, subscr, |
| 256 | "Got SendAuthenticationInfoResult, num_auth_tuples = %d\n", |
| 257 | gsup_msg->num_auth_tuples); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 258 | |
| 259 | if (gsup_msg->num_auth_tuples > 0) { |
| 260 | memset(sdata->auth_triplets, 0, sizeof(sdata->auth_triplets)); |
| 261 | |
| 262 | for (idx = 0; idx < ARRAY_SIZE(sdata->auth_triplets); idx++) |
| 263 | sdata->auth_triplets[idx].key_seq = GSM_KEY_SEQ_INVAL; |
| 264 | } |
| 265 | |
| 266 | for (idx = 0; idx < gsup_msg->num_auth_tuples; idx++) { |
| 267 | size_t key_seq = gsup_msg->auth_tuples[idx].key_seq; |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 268 | LOGGSUBSCRP(LOGL_DEBUG, subscr, |
| 269 | "Adding auth tuple, cksn = %d\n", key_seq); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 270 | if (key_seq >= ARRAY_SIZE(sdata->auth_triplets)) { |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 271 | LOGGSUBSCRP(LOGL_NOTICE, subscr, |
| 272 | "Skipping auth triplet with invalid cksn %d\n", |
| 273 | key_seq); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 274 | continue; |
| 275 | } |
| 276 | sdata->auth_triplets[key_seq] = gsup_msg->auth_tuples[idx]; |
| 277 | } |
| 278 | |
| 279 | sdata->auth_triplets_updated = 1; |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 280 | sdata->error_cause = 0; |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 281 | |
| 282 | gprs_subscr_update_auth_info(subscr); |
| 283 | |
| 284 | return 0; |
| 285 | } |
| 286 | |
| 287 | static int gprs_subscr_handle_gsup_upd_loc_res(struct gsm_subscriber *subscr, |
| 288 | struct gprs_gsup_message *gsup_msg) |
| 289 | { |
| 290 | unsigned idx; |
| 291 | |
| 292 | if (gsup_msg->pdp_info_compl) { |
| 293 | LOGP(DGPRS, LOGL_INFO, "Would clear existing PDP info\n"); |
| 294 | |
| 295 | /* TODO: clear existing PDP info entries */ |
| 296 | } |
| 297 | |
| 298 | for (idx = 0; idx < gsup_msg->num_pdp_infos; idx++) { |
| 299 | struct gprs_gsup_pdp_info *pdp_info = &gsup_msg->pdp_infos[idx]; |
| 300 | size_t ctx_id = pdp_info->context_id; |
| 301 | |
| 302 | LOGP(DGPRS, LOGL_INFO, |
| 303 | "Would set PDP info, context id = %d, APN = %s\n", |
| 304 | ctx_id, osmo_hexdump(pdp_info->apn_enc, pdp_info->apn_enc_len)); |
| 305 | |
| 306 | /* TODO: set PDP info [ctx_id] */ |
| 307 | } |
| 308 | |
| 309 | subscr->authorized = 1; |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 310 | subscr->sgsn_data->error_cause = 0; |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 311 | |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 312 | subscr->flags |= GPRS_SUBSCRIBER_ENABLE_PURGE; |
| 313 | |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 314 | gprs_subscr_update(subscr); |
| 315 | return 0; |
| 316 | } |
| 317 | |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 318 | static int check_cause(int cause) |
| 319 | { |
| 320 | switch (cause) { |
| 321 | case GMM_CAUSE_IMSI_UNKNOWN ... GMM_CAUSE_ILLEGAL_ME: |
| 322 | case GMM_CAUSE_GPRS_NOTALLOWED ... GMM_CAUSE_NO_GPRS_PLMN: |
| 323 | return EACCES; |
| 324 | |
| 325 | case GMM_CAUSE_MSC_TEMP_NOTREACH ... GMM_CAUSE_CONGESTION: |
Jacob Erlbeck | f06fe29 | 2015-01-05 16:20:47 +0100 | [diff] [blame] | 326 | return EHOSTUNREACH; |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 327 | |
| 328 | case GMM_CAUSE_SEM_INCORR_MSG ... GMM_CAUSE_PROTO_ERR_UNSPEC: |
| 329 | default: |
| 330 | return EINVAL; |
| 331 | } |
| 332 | } |
| 333 | |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 334 | static int gprs_subscr_handle_gsup_auth_err(struct gsm_subscriber *subscr, |
| 335 | struct gprs_gsup_message *gsup_msg) |
| 336 | { |
| 337 | unsigned idx; |
| 338 | struct sgsn_subscriber_data *sdata = subscr->sgsn_data; |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 339 | int cause_err; |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 340 | |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 341 | cause_err = check_cause(gsup_msg->cause); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 342 | |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 343 | LOGGSUBSCRP(LOGL_DEBUG, subscr, |
| 344 | "Send authentication info has failed with cause %d, " |
| 345 | "handled as: %s\n", |
| 346 | gsup_msg->cause, strerror(cause_err)); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 347 | |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 348 | switch (cause_err) { |
| 349 | case EACCES: |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 350 | LOGGSUBSCRP(LOGL_NOTICE, subscr, |
| 351 | "GPRS send auth info req failed, access denied, " |
| 352 | "GMM cause = '%s' (%d)\n", |
| 353 | get_value_string(gsm48_gmm_cause_names, gsup_msg->cause), |
| 354 | gsup_msg->cause); |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 355 | /* Clear auth tuples */ |
| 356 | memset(sdata->auth_triplets, 0, sizeof(sdata->auth_triplets)); |
| 357 | for (idx = 0; idx < ARRAY_SIZE(sdata->auth_triplets); idx++) |
| 358 | sdata->auth_triplets[idx].key_seq = GSM_KEY_SEQ_INVAL; |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 359 | |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 360 | subscr->authorized = 0; |
| 361 | sdata->error_cause = gsup_msg->cause; |
| 362 | gprs_subscr_update_auth_info(subscr); |
| 363 | break; |
| 364 | |
Jacob Erlbeck | f06fe29 | 2015-01-05 16:20:47 +0100 | [diff] [blame] | 365 | case EHOSTUNREACH: |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 366 | LOGGSUBSCRP(LOGL_NOTICE, subscr, |
| 367 | "GPRS send auth info req failed, GMM cause = '%s' (%d)\n", |
| 368 | get_value_string(gsm48_gmm_cause_names, gsup_msg->cause), |
| 369 | gsup_msg->cause); |
Jacob Erlbeck | f06fe29 | 2015-01-05 16:20:47 +0100 | [diff] [blame] | 370 | |
| 371 | sdata->error_cause = gsup_msg->cause; |
| 372 | gprs_subscr_update_auth_info(subscr); |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 373 | break; |
| 374 | |
| 375 | default: |
| 376 | case EINVAL: |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 377 | LOGGSUBSCRP(LOGL_ERROR, subscr, |
| 378 | "GSUP protocol remote error, GMM cause = '%s' (%d)\n", |
| 379 | get_value_string(gsm48_gmm_cause_names, gsup_msg->cause), |
| 380 | gsup_msg->cause); |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 381 | break; |
| 382 | } |
| 383 | |
| 384 | return -gsup_msg->cause; |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 385 | } |
| 386 | |
| 387 | static int gprs_subscr_handle_gsup_upd_loc_err(struct gsm_subscriber *subscr, |
| 388 | struct gprs_gsup_message *gsup_msg) |
| 389 | { |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 390 | int cause_err; |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 391 | |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 392 | cause_err = check_cause(gsup_msg->cause); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 393 | |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 394 | LOGGSUBSCRP(LOGL_DEBUG, subscr, |
| 395 | "Update location has failed with cause %d, handled as: %s\n", |
| 396 | gsup_msg->cause, strerror(cause_err)); |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 397 | |
| 398 | switch (cause_err) { |
| 399 | case EACCES: |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 400 | LOGGSUBSCRP(LOGL_NOTICE, subscr, |
| 401 | "GPRS update location failed, access denied, " |
| 402 | "GMM cause = '%s' (%d)\n", |
| 403 | get_value_string(gsm48_gmm_cause_names, gsup_msg->cause), |
| 404 | gsup_msg->cause); |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 405 | |
| 406 | subscr->authorized = 0; |
| 407 | subscr->sgsn_data->error_cause = gsup_msg->cause; |
| 408 | gprs_subscr_update_auth_info(subscr); |
| 409 | break; |
| 410 | |
Jacob Erlbeck | f06fe29 | 2015-01-05 16:20:47 +0100 | [diff] [blame] | 411 | case EHOSTUNREACH: |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 412 | LOGGSUBSCRP(LOGL_NOTICE, subscr, |
| 413 | "GPRS update location failed, GMM cause = '%s' (%d)\n", |
| 414 | get_value_string(gsm48_gmm_cause_names, gsup_msg->cause), |
| 415 | gsup_msg->cause); |
Jacob Erlbeck | f06fe29 | 2015-01-05 16:20:47 +0100 | [diff] [blame] | 416 | |
| 417 | subscr->sgsn_data->error_cause = gsup_msg->cause; |
| 418 | gprs_subscr_update_auth_info(subscr); |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 419 | break; |
| 420 | |
| 421 | default: |
| 422 | case EINVAL: |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 423 | LOGGSUBSCRP(LOGL_ERROR, subscr, |
| 424 | "GSUP protocol remote error, GMM cause = '%s' (%d)\n", |
| 425 | get_value_string(gsm48_gmm_cause_names, gsup_msg->cause), |
| 426 | gsup_msg->cause); |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 427 | break; |
| 428 | } |
| 429 | |
| 430 | return -gsup_msg->cause; |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 431 | } |
| 432 | |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 433 | static int gprs_subscr_handle_gsup_purge_res(struct gsm_subscriber *subscr, |
| 434 | struct gprs_gsup_message *gsup_msg) |
| 435 | { |
| 436 | LOGGSUBSCRP(LOGL_INFO, subscr, "Completing purge MS\n"); |
| 437 | |
| 438 | /* Force silent cancellation */ |
| 439 | subscr->sgsn_data->error_cause = 0; |
| 440 | gprs_subscr_put_and_cancel(subscr_get(subscr)); |
| 441 | |
| 442 | return 0; |
| 443 | } |
| 444 | |
| 445 | static int gprs_subscr_handle_gsup_purge_err(struct gsm_subscriber *subscr, |
| 446 | struct gprs_gsup_message *gsup_msg) |
| 447 | { |
| 448 | LOGGSUBSCRP(LOGL_NOTICE, subscr, |
| 449 | "Purge MS has failed with cause '%s' (%d)\n", |
| 450 | get_value_string(gsm48_gmm_cause_names, gsup_msg->cause), |
| 451 | gsup_msg->cause); |
| 452 | |
| 453 | /* In GSM 09.02, 19.1.4.4, the text and the SDL diagram imply that |
| 454 | * the subscriber data is not removed if the request has failed. On the |
| 455 | * other hand, keeping the subscriber data in either error case |
| 456 | * (subscriber unknown, syntactical message error, connection error) |
| 457 | * doesn't seem to give any advantage, since the data will be restored |
| 458 | * on the next Attach Request anyway. |
| 459 | * This approach ensures, that the subscriber record will not stick if |
| 460 | * an error happens. |
| 461 | */ |
| 462 | |
| 463 | /* TODO: Check whether this behaviour is acceptable and either just |
| 464 | * remove this TODO-notice or change the implementation to not delete |
| 465 | * the subscriber data (eventually resetting the ENABLE_PURGE flag and |
| 466 | * restarting the expiry timer based on the cause). |
| 467 | * |
| 468 | * Subscriber Unknown: cancel subscr |
| 469 | * Temporary network problems: do nothing (handled by timer based retry) |
| 470 | * Message problems (syntax, nyi, ...): cancel subscr (retry won't help) |
| 471 | */ |
| 472 | |
| 473 | gprs_subscr_handle_gsup_purge_res(subscr, gsup_msg); |
| 474 | |
| 475 | return -gsup_msg->cause; |
| 476 | } |
| 477 | |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 478 | int gprs_subscr_rx_gsup_message(struct msgb *msg) |
| 479 | { |
| 480 | uint8_t *data = msgb_l2(msg); |
| 481 | size_t data_len = msgb_l2len(msg); |
| 482 | int rc = 0; |
| 483 | |
| 484 | struct gprs_gsup_message gsup_msg = {0}; |
| 485 | struct gsm_subscriber *subscr; |
| 486 | |
| 487 | rc = gprs_gsup_decode(data, data_len, &gsup_msg); |
| 488 | if (rc < 0) { |
| 489 | LOGP(DGPRS, LOGL_ERROR, |
Jacob Erlbeck | bce2061 | 2015-01-05 18:57:32 +0100 | [diff] [blame] | 490 | "decoding GSUP message fails with error '%s' (%d)\n", |
| 491 | get_value_string(gsm48_gmm_cause_names, -rc), -rc); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 492 | return rc; |
| 493 | } |
| 494 | |
| 495 | if (!gsup_msg.imsi[0]) |
| 496 | return -GMM_CAUSE_INV_MAND_INFO; |
| 497 | |
| 498 | if (gsup_msg.message_type == GPRS_GSUP_MSGT_INSERT_DATA_REQUEST) |
| 499 | subscr = gprs_subscr_get_or_create(gsup_msg.imsi); |
| 500 | else |
| 501 | subscr = gprs_subscr_get_by_imsi(gsup_msg.imsi); |
| 502 | |
| 503 | if (!subscr) { |
| 504 | LOGP(DGPRS, LOGL_NOTICE, |
| 505 | "Unknown IMSI %s, discarding GSUP message\n", gsup_msg.imsi); |
| 506 | return -GMM_CAUSE_IMSI_UNKNOWN; |
| 507 | } |
| 508 | |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 509 | LOGGSUBSCRP(LOGL_INFO, subscr, |
| 510 | "Received GSUP message of type 0x%02x\n", gsup_msg.message_type); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 511 | |
| 512 | switch (gsup_msg.message_type) { |
| 513 | case GPRS_GSUP_MSGT_LOCATION_CANCEL_REQUEST: |
Jacob Erlbeck | 9aa9991 | 2015-01-05 18:38:41 +0100 | [diff] [blame] | 514 | subscr->sgsn_data->error_cause = 0; |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 515 | gprs_subscr_put_and_cancel(subscr); |
| 516 | subscr = NULL; |
| 517 | break; |
| 518 | |
| 519 | case GPRS_GSUP_MSGT_SEND_AUTH_INFO_RESULT: |
Jacob Erlbeck | bce2061 | 2015-01-05 18:57:32 +0100 | [diff] [blame] | 520 | rc = gprs_subscr_handle_gsup_auth_res(subscr, &gsup_msg); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 521 | break; |
| 522 | |
| 523 | case GPRS_GSUP_MSGT_SEND_AUTH_INFO_ERROR: |
Jacob Erlbeck | bce2061 | 2015-01-05 18:57:32 +0100 | [diff] [blame] | 524 | rc = gprs_subscr_handle_gsup_auth_err(subscr, &gsup_msg); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 525 | break; |
| 526 | |
| 527 | case GPRS_GSUP_MSGT_UPDATE_LOCATION_RESULT: |
Jacob Erlbeck | bce2061 | 2015-01-05 18:57:32 +0100 | [diff] [blame] | 528 | rc = gprs_subscr_handle_gsup_upd_loc_res(subscr, &gsup_msg); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 529 | break; |
| 530 | |
| 531 | case GPRS_GSUP_MSGT_UPDATE_LOCATION_ERROR: |
Jacob Erlbeck | bce2061 | 2015-01-05 18:57:32 +0100 | [diff] [blame] | 532 | rc = gprs_subscr_handle_gsup_upd_loc_err(subscr, &gsup_msg); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 533 | break; |
| 534 | |
| 535 | case GPRS_GSUP_MSGT_PURGE_MS_ERROR: |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 536 | rc = gprs_subscr_handle_gsup_purge_err(subscr, &gsup_msg); |
| 537 | break; |
| 538 | |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 539 | case GPRS_GSUP_MSGT_PURGE_MS_RESULT: |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 540 | rc = gprs_subscr_handle_gsup_purge_res(subscr, &gsup_msg); |
| 541 | break; |
| 542 | |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 543 | case GPRS_GSUP_MSGT_INSERT_DATA_REQUEST: |
| 544 | case GPRS_GSUP_MSGT_DELETE_DATA_REQUEST: |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 545 | LOGGSUBSCRP(LOGL_ERROR, subscr, |
| 546 | "Rx GSUP message type %d not yet implemented\n", |
| 547 | gsup_msg.message_type); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 548 | rc = -GMM_CAUSE_MSGT_NOTEXIST_NOTIMPL; |
| 549 | break; |
| 550 | |
| 551 | default: |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 552 | LOGGSUBSCRP(LOGL_ERROR, subscr, |
| 553 | "Rx GSUP message type %d not valid at SGSN\n", |
| 554 | gsup_msg.message_type); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 555 | rc = -GMM_CAUSE_MSGT_INCOMP_P_STATE; |
| 556 | break; |
| 557 | }; |
| 558 | |
| 559 | if (subscr) |
| 560 | subscr_put(subscr); |
| 561 | |
| 562 | return rc; |
| 563 | } |
| 564 | |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 565 | int gprs_subscr_purge(struct gsm_subscriber *subscr) |
| 566 | { |
| 567 | struct gprs_gsup_message gsup_msg = {0}; |
Jacob Erlbeck | f81cacc | 2015-01-08 16:23:25 +0100 | [diff] [blame^] | 568 | int rc; |
| 569 | |
| 570 | if (!check_blocking(subscr, SGSN_SUBSCR_PROC_PURGE)) { |
| 571 | LOGGSUBSCRP( |
| 572 | LOGL_NOTICE, subscr, |
| 573 | "Cannot purge MS subscriber, blocked\n"); |
| 574 | return -EAGAIN; |
| 575 | } |
| 576 | |
| 577 | /* GSM 09.02, 19.4.1.4 requires other MAP requests to be blocked until |
| 578 | * this procedure is completed |
| 579 | */ |
| 580 | subscr->sgsn_data->blocked_by = SGSN_SUBSCR_PROC_PURGE; |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 581 | |
| 582 | LOGGSUBSCRP(LOGL_INFO, subscr, "purging MS subscriber\n"); |
| 583 | |
| 584 | gsup_msg.message_type = GPRS_GSUP_MSGT_PURGE_MS_REQUEST; |
Jacob Erlbeck | f81cacc | 2015-01-08 16:23:25 +0100 | [diff] [blame^] | 585 | rc = gprs_subscr_tx_gsup_message(subscr, &gsup_msg); |
| 586 | if (rc < 0) |
| 587 | subscr->sgsn_data->blocked_by = SGSN_SUBSCR_PROC_NONE; |
| 588 | |
| 589 | return rc; |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 590 | } |
| 591 | |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 592 | int gprs_subscr_query_auth_info(struct gsm_subscriber *subscr) |
| 593 | { |
| 594 | struct gprs_gsup_message gsup_msg = {0}; |
| 595 | |
Jacob Erlbeck | f81cacc | 2015-01-08 16:23:25 +0100 | [diff] [blame^] | 596 | if (!check_blocking(subscr, SGSN_SUBSCR_PROC_UPD_AUTH)) { |
| 597 | LOGGSUBSCRP( |
| 598 | LOGL_NOTICE, subscr, |
| 599 | "Cannot start update auth info request procedure, blocked\n"); |
| 600 | abort_blocking_procedure(subscr); |
| 601 | return -EAGAIN; |
| 602 | } |
| 603 | |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 604 | LOGGSUBSCRP(LOGL_INFO, subscr, |
| 605 | "subscriber auth info is not available\n"); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 606 | |
| 607 | gsup_msg.message_type = GPRS_GSUP_MSGT_SEND_AUTH_INFO_REQUEST; |
| 608 | return gprs_subscr_tx_gsup_message(subscr, &gsup_msg); |
| 609 | } |
| 610 | |
Jacob Erlbeck | 98a95ac | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 611 | int gprs_subscr_location_update(struct gsm_subscriber *subscr) |
| 612 | { |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 613 | struct gprs_gsup_message gsup_msg = {0}; |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 614 | |
Jacob Erlbeck | f81cacc | 2015-01-08 16:23:25 +0100 | [diff] [blame^] | 615 | if (!check_blocking(subscr, SGSN_SUBSCR_PROC_UPD_LOC)) { |
| 616 | LOGGSUBSCRP( |
| 617 | LOGL_NOTICE, subscr, |
| 618 | "Cannot start update location procedure, blocked\n"); |
| 619 | abort_blocking_procedure(subscr); |
| 620 | return -EAGAIN; |
| 621 | } |
| 622 | |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 623 | LOGGSUBSCRP(LOGL_INFO, subscr, |
| 624 | "subscriber data is not available\n"); |
Jacob Erlbeck | a6ddc2d | 2014-12-12 15:01:37 +0100 | [diff] [blame] | 625 | |
| 626 | gsup_msg.message_type = GPRS_GSUP_MSGT_UPDATE_LOCATION_REQUEST; |
| 627 | return gprs_subscr_tx_gsup_message(subscr, &gsup_msg); |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 628 | } |
| 629 | |
| 630 | void gprs_subscr_update(struct gsm_subscriber *subscr) |
| 631 | { |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 632 | LOGGSUBSCRP(LOGL_DEBUG, subscr, "Updating subscriber data\n"); |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 633 | |
Jacob Erlbeck | 98a95ac | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 634 | subscr->flags &= ~GPRS_SUBSCRIBER_UPDATE_LOCATION_PENDING; |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 635 | subscr->flags &= ~GSM_SUBSCRIBER_FIRST_CONTACT; |
| 636 | |
Jacob Erlbeck | a1e0373 | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 637 | sgsn_update_subscriber_data(subscr->sgsn_data->mm, subscr); |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 638 | } |
| 639 | |
Jacob Erlbeck | 98a95ac | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 640 | void gprs_subscr_update_auth_info(struct gsm_subscriber *subscr) |
| 641 | { |
Jacob Erlbeck | bf34c67 | 2014-12-23 14:24:16 +0100 | [diff] [blame] | 642 | LOGGSUBSCRP(LOGL_DEBUG, subscr, |
| 643 | "Updating subscriber authentication info\n"); |
Jacob Erlbeck | 98a95ac | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 644 | |
| 645 | subscr->flags &= ~GPRS_SUBSCRIBER_UPDATE_AUTH_INFO_PENDING; |
| 646 | subscr->flags &= ~GSM_SUBSCRIBER_FIRST_CONTACT; |
| 647 | |
| 648 | sgsn_update_subscriber_data(subscr->sgsn_data->mm, subscr); |
| 649 | } |
| 650 | |
| 651 | struct gsm_subscriber *gprs_subscr_get_or_create_by_mmctx(struct sgsn_mm_ctx *mmctx) |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 652 | { |
| 653 | struct gsm_subscriber *subscr = NULL; |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 654 | |
Jacob Erlbeck | 98a95ac | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 655 | if (mmctx->subscr) |
| 656 | return subscr_get(mmctx->subscr); |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 657 | |
Jacob Erlbeck | 98a95ac | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 658 | if (mmctx->imsi[0]) |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 659 | subscr = gprs_subscr_get_by_imsi(mmctx->imsi); |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 660 | |
| 661 | if (!subscr) { |
| 662 | subscr = gprs_subscr_get_or_create(mmctx->imsi); |
| 663 | subscr->flags |= GSM_SUBSCRIBER_FIRST_CONTACT; |
Jacob Erlbeck | 65fa3f7 | 2015-01-06 16:32:41 +0100 | [diff] [blame] | 664 | subscr->flags &= ~GPRS_SUBSCRIBER_ENABLE_PURGE; |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 665 | } |
| 666 | |
| 667 | if (strcpy(subscr->equipment.imei, mmctx->imei) != 0) { |
| 668 | strncpy(subscr->equipment.imei, mmctx->imei, GSM_IMEI_LENGTH-1); |
| 669 | subscr->equipment.imei[GSM_IMEI_LENGTH-1] = 0; |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 670 | } |
| 671 | |
Jacob Erlbeck | 98a95ac | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 672 | if (subscr->lac != mmctx->ra.lac) |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 673 | subscr->lac = mmctx->ra.lac; |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 674 | |
Jacob Erlbeck | 98a95ac | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 675 | subscr->sgsn_data->mm = mmctx; |
| 676 | mmctx->subscr = subscr_get(subscr); |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 677 | |
Jacob Erlbeck | 98a95ac | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 678 | return subscr; |
| 679 | } |
| 680 | |
| 681 | int gprs_subscr_request_update_location(struct sgsn_mm_ctx *mmctx) |
| 682 | { |
| 683 | struct gsm_subscriber *subscr = NULL; |
| 684 | int rc; |
| 685 | |
| 686 | LOGMMCTXP(LOGL_DEBUG, mmctx, "Requesting subscriber data update\n"); |
| 687 | |
| 688 | subscr = gprs_subscr_get_or_create_by_mmctx(mmctx); |
| 689 | |
| 690 | subscr->flags |= GPRS_SUBSCRIBER_UPDATE_LOCATION_PENDING; |
| 691 | |
| 692 | rc = gprs_subscr_location_update(subscr); |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 693 | subscr_put(subscr); |
Jacob Erlbeck | 98a95ac | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 694 | return rc; |
| 695 | } |
| 696 | |
| 697 | int gprs_subscr_request_auth_info(struct sgsn_mm_ctx *mmctx) |
| 698 | { |
| 699 | struct gsm_subscriber *subscr = NULL; |
| 700 | int rc; |
| 701 | |
| 702 | LOGMMCTXP(LOGL_DEBUG, mmctx, "Requesting subscriber authentication info\n"); |
| 703 | |
| 704 | subscr = gprs_subscr_get_or_create_by_mmctx(mmctx); |
| 705 | |
| 706 | subscr->flags |= GPRS_SUBSCRIBER_UPDATE_AUTH_INFO_PENDING; |
| 707 | |
| 708 | rc = gprs_subscr_query_auth_info(subscr); |
| 709 | subscr_put(subscr); |
| 710 | return rc; |
Jacob Erlbeck | 33b6dad | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 711 | } |