Jacob Erlbeck | e8b6968 | 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> |
| 23 | |
| 24 | #include <openbsc/sgsn.h> |
| 25 | #include <openbsc/gprs_sgsn.h> |
| 26 | #include <openbsc/gprs_gmm.h> |
| 27 | |
| 28 | #include <openbsc/debug.h> |
| 29 | |
| 30 | extern void *tall_bsc_ctx; |
| 31 | |
| 32 | void gprs_subscr_init(struct sgsn_instance *sgi) |
| 33 | { |
| 34 | } |
| 35 | |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 36 | static struct sgsn_subscriber_data *sgsn_subscriber_data_alloc(void *ctx) |
| 37 | { |
| 38 | struct sgsn_subscriber_data *sdata; |
| 39 | |
| 40 | sdata = talloc_zero(ctx, struct sgsn_subscriber_data); |
| 41 | |
| 42 | return sdata; |
| 43 | } |
| 44 | |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 45 | struct gsm_subscriber *gprs_subscr_get_or_create(const char *imsi) |
| 46 | { |
| 47 | struct gsm_subscriber *subscr; |
| 48 | |
| 49 | subscr = subscr_get_or_create(NULL, imsi); |
| 50 | if (!subscr) |
| 51 | return NULL; |
| 52 | |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 53 | if (!subscr->sgsn_data) |
| 54 | subscr->sgsn_data = sgsn_subscriber_data_alloc(subscr); |
| 55 | |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 56 | subscr->keep_in_ram = 1; |
| 57 | |
| 58 | return subscr; |
| 59 | } |
| 60 | |
| 61 | struct gsm_subscriber *gprs_subscr_get_by_imsi(const char *imsi) |
| 62 | { |
| 63 | return subscr_active_by_imsi(NULL, imsi); |
| 64 | } |
| 65 | |
| 66 | void gprs_subscr_delete(struct gsm_subscriber *subscr) |
| 67 | { |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 68 | if (subscr->sgsn_data->mm) { |
| 69 | subscr_put(subscr->sgsn_data->mm->subscr); |
| 70 | subscr->sgsn_data->mm->subscr = NULL; |
| 71 | subscr->sgsn_data->mm = NULL; |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | if ((subscr->flags & GPRS_SUBSCRIBER_CANCELLED) || |
| 75 | (subscr->flags & GSM_SUBSCRIBER_FIRST_CONTACT)) |
| 76 | subscr->keep_in_ram = 0; |
| 77 | |
| 78 | subscr_put(subscr); |
| 79 | } |
| 80 | |
| 81 | void gprs_subscr_put_and_cancel(struct gsm_subscriber *subscr) |
| 82 | { |
| 83 | subscr->authorized = 0; |
| 84 | subscr->flags |= GPRS_SUBSCRIBER_CANCELLED; |
| 85 | |
| 86 | gprs_subscr_update(subscr); |
| 87 | |
| 88 | gprs_subscr_delete(subscr); |
| 89 | } |
| 90 | |
| 91 | int gprs_subscr_query(struct gsm_subscriber *subscr) |
| 92 | { |
| 93 | /* TODO: Implement remote query to MSC, ... */ |
| 94 | |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 95 | LOGMMCTXP(LOGL_INFO, subscr->sgsn_data->mm, |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 96 | "subscriber data is not available (remote query NYI)\n"); |
| 97 | return -ENOTSUP; |
| 98 | } |
| 99 | |
| 100 | void gprs_subscr_update(struct gsm_subscriber *subscr) |
| 101 | { |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 102 | LOGMMCTXP(LOGL_DEBUG, subscr->sgsn_data->mm, "Updating subscriber data\n"); |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 103 | |
| 104 | subscr->flags &= ~GPRS_SUBSCRIBER_UPDATE_PENDING; |
| 105 | subscr->flags &= ~GSM_SUBSCRIBER_FIRST_CONTACT; |
| 106 | |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 107 | sgsn_update_subscriber_data(subscr->sgsn_data->mm, subscr); |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | int gprs_subscr_request_update(struct sgsn_mm_ctx *mmctx) |
| 111 | { |
| 112 | struct gsm_subscriber *subscr = NULL; |
| 113 | int need_update = 0; |
| 114 | int rc; |
| 115 | |
| 116 | LOGMMCTXP(LOGL_DEBUG, mmctx, "Requesting subscriber data update\n"); |
| 117 | |
| 118 | if (mmctx->subscr) { |
| 119 | subscr = subscr_get(mmctx->subscr); |
| 120 | } else if (mmctx->imsi[0]) { |
| 121 | subscr = gprs_subscr_get_by_imsi(mmctx->imsi); |
| 122 | need_update = 1; |
| 123 | } |
| 124 | |
| 125 | if (!subscr) { |
| 126 | subscr = gprs_subscr_get_or_create(mmctx->imsi); |
| 127 | subscr->flags |= GSM_SUBSCRIBER_FIRST_CONTACT; |
| 128 | need_update = 1; |
| 129 | } |
| 130 | |
| 131 | if (strcpy(subscr->equipment.imei, mmctx->imei) != 0) { |
| 132 | strncpy(subscr->equipment.imei, mmctx->imei, GSM_IMEI_LENGTH-1); |
| 133 | subscr->equipment.imei[GSM_IMEI_LENGTH-1] = 0; |
| 134 | need_update = 1; |
| 135 | } |
| 136 | |
| 137 | if (subscr->lac != mmctx->ra.lac) { |
| 138 | subscr->lac = mmctx->ra.lac; |
| 139 | need_update = 1; |
| 140 | } |
| 141 | |
| 142 | if (need_update) { |
| 143 | subscr->flags |= GPRS_SUBSCRIBER_UPDATE_PENDING; |
| 144 | if (!mmctx->subscr) { |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 145 | subscr->sgsn_data->mm = mmctx; |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 146 | mmctx->subscr = subscr_get(subscr); |
| 147 | } |
| 148 | |
| 149 | rc = gprs_subscr_query(subscr); |
| 150 | subscr_put(subscr); |
| 151 | return rc; |
| 152 | } |
| 153 | gprs_subscr_update(subscr); |
| 154 | subscr_put(subscr); |
| 155 | return 0; |
| 156 | } |