| /* MS subscriber data handling */ |
| |
| /* (C) 2014 by sysmocom s.f.m.c. GmbH |
| * |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Affero General Public License as published by |
| * the Free Software Foundation; either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Affero General Public License for more details. |
| * |
| * You should have received a copy of the GNU Affero General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| */ |
| |
| #include <openbsc/gsm_subscriber.h> |
| |
| #include <openbsc/sgsn.h> |
| #include <openbsc/gprs_sgsn.h> |
| #include <openbsc/gprs_gmm.h> |
| |
| #include <openbsc/debug.h> |
| |
| extern void *tall_bsc_ctx; |
| |
| void gprs_subscr_init(struct sgsn_instance *sgi) |
| { |
| } |
| |
| static struct sgsn_subscriber_data *sgsn_subscriber_data_alloc(void *ctx) |
| { |
| struct sgsn_subscriber_data *sdata; |
| int idx; |
| |
| sdata = talloc_zero(ctx, struct sgsn_subscriber_data); |
| |
| for (idx = 0; idx < ARRAY_SIZE(sdata->auth_triplets); idx++) |
| sdata->auth_triplets[idx].key_seq = GSM_KEY_SEQ_INVAL; |
| |
| return sdata; |
| } |
| |
| struct gsm_subscriber *gprs_subscr_get_or_create(const char *imsi) |
| { |
| struct gsm_subscriber *subscr; |
| |
| subscr = subscr_get_or_create(NULL, imsi); |
| if (!subscr) |
| return NULL; |
| |
| if (!subscr->sgsn_data) |
| subscr->sgsn_data = sgsn_subscriber_data_alloc(subscr); |
| |
| subscr->keep_in_ram = 1; |
| |
| return subscr; |
| } |
| |
| struct gsm_subscriber *gprs_subscr_get_by_imsi(const char *imsi) |
| { |
| return subscr_active_by_imsi(NULL, imsi); |
| } |
| |
| void gprs_subscr_delete(struct gsm_subscriber *subscr) |
| { |
| if (subscr->sgsn_data->mm) { |
| subscr_put(subscr->sgsn_data->mm->subscr); |
| subscr->sgsn_data->mm->subscr = NULL; |
| subscr->sgsn_data->mm = NULL; |
| } |
| |
| if ((subscr->flags & GPRS_SUBSCRIBER_CANCELLED) || |
| (subscr->flags & GSM_SUBSCRIBER_FIRST_CONTACT)) |
| subscr->keep_in_ram = 0; |
| |
| subscr_put(subscr); |
| } |
| |
| void gprs_subscr_put_and_cancel(struct gsm_subscriber *subscr) |
| { |
| subscr->authorized = 0; |
| subscr->flags |= GPRS_SUBSCRIBER_CANCELLED; |
| |
| gprs_subscr_update(subscr); |
| |
| gprs_subscr_delete(subscr); |
| } |
| |
| int gprs_subscr_query_auth_info(struct gsm_subscriber *subscr) |
| { |
| /* TODO: Implement remote query to HLR, ... */ |
| |
| LOGMMCTXP(LOGL_INFO, subscr->sgsn_data->mm, |
| "subscriber auth info is not available (remote query NYI)\n"); |
| return -ENOTSUP; |
| } |
| |
| int gprs_subscr_location_update(struct gsm_subscriber *subscr) |
| { |
| /* TODO: Implement remote query to HLR, ... */ |
| |
| LOGMMCTXP(LOGL_INFO, subscr->sgsn_data->mm, |
| "subscriber data is not available (remote query NYI)\n"); |
| return -ENOTSUP; |
| } |
| |
| void gprs_subscr_update(struct gsm_subscriber *subscr) |
| { |
| LOGMMCTXP(LOGL_DEBUG, subscr->sgsn_data->mm, "Updating subscriber data\n"); |
| |
| subscr->flags &= ~GPRS_SUBSCRIBER_UPDATE_LOCATION_PENDING; |
| subscr->flags &= ~GSM_SUBSCRIBER_FIRST_CONTACT; |
| |
| sgsn_update_subscriber_data(subscr->sgsn_data->mm, subscr); |
| } |
| |
| void gprs_subscr_update_auth_info(struct gsm_subscriber *subscr) |
| { |
| LOGMMCTXP(LOGL_DEBUG, subscr->sgsn_data->mm, |
| "Updating subscriber authentication info\n"); |
| |
| subscr->flags &= ~GPRS_SUBSCRIBER_UPDATE_AUTH_INFO_PENDING; |
| subscr->flags &= ~GSM_SUBSCRIBER_FIRST_CONTACT; |
| |
| sgsn_update_subscriber_data(subscr->sgsn_data->mm, subscr); |
| } |
| |
| struct gsm_subscriber *gprs_subscr_get_or_create_by_mmctx(struct sgsn_mm_ctx *mmctx) |
| { |
| struct gsm_subscriber *subscr = NULL; |
| |
| if (mmctx->subscr) |
| return subscr_get(mmctx->subscr); |
| |
| if (mmctx->imsi[0]) |
| subscr = gprs_subscr_get_by_imsi(mmctx->imsi); |
| |
| if (!subscr) { |
| subscr = gprs_subscr_get_or_create(mmctx->imsi); |
| subscr->flags |= GSM_SUBSCRIBER_FIRST_CONTACT; |
| } |
| |
| if (strcpy(subscr->equipment.imei, mmctx->imei) != 0) { |
| strncpy(subscr->equipment.imei, mmctx->imei, GSM_IMEI_LENGTH-1); |
| subscr->equipment.imei[GSM_IMEI_LENGTH-1] = 0; |
| } |
| |
| if (subscr->lac != mmctx->ra.lac) |
| subscr->lac = mmctx->ra.lac; |
| |
| subscr->sgsn_data->mm = mmctx; |
| mmctx->subscr = subscr_get(subscr); |
| |
| return subscr; |
| } |
| |
| int gprs_subscr_request_update_location(struct sgsn_mm_ctx *mmctx) |
| { |
| struct gsm_subscriber *subscr = NULL; |
| int rc; |
| |
| LOGMMCTXP(LOGL_DEBUG, mmctx, "Requesting subscriber data update\n"); |
| |
| subscr = gprs_subscr_get_or_create_by_mmctx(mmctx); |
| |
| subscr->flags |= GPRS_SUBSCRIBER_UPDATE_LOCATION_PENDING; |
| |
| rc = gprs_subscr_location_update(subscr); |
| subscr_put(subscr); |
| return rc; |
| } |
| |
| int gprs_subscr_request_auth_info(struct sgsn_mm_ctx *mmctx) |
| { |
| struct gsm_subscriber *subscr = NULL; |
| int rc; |
| |
| LOGMMCTXP(LOGL_DEBUG, mmctx, "Requesting subscriber authentication info\n"); |
| |
| subscr = gprs_subscr_get_or_create_by_mmctx(mmctx); |
| |
| subscr->flags |= GPRS_SUBSCRIBER_UPDATE_AUTH_INFO_PENDING; |
| |
| rc = gprs_subscr_query_auth_info(subscr); |
| subscr_put(subscr); |
| return rc; |
| } |