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; |
Jacob Erlbeck | b1332b6 | 2014-12-08 15:52:00 +0100 | [diff] [blame] | 39 | int idx; |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 40 | |
| 41 | sdata = talloc_zero(ctx, struct sgsn_subscriber_data); |
| 42 | |
Jacob Erlbeck | b1332b6 | 2014-12-08 15:52:00 +0100 | [diff] [blame] | 43 | for (idx = 0; idx < ARRAY_SIZE(sdata->auth_triplets); idx++) |
| 44 | sdata->auth_triplets[idx].key_seq = GSM_KEY_SEQ_INVAL; |
| 45 | |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 46 | return sdata; |
| 47 | } |
| 48 | |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 49 | struct gsm_subscriber *gprs_subscr_get_or_create(const char *imsi) |
| 50 | { |
| 51 | struct gsm_subscriber *subscr; |
| 52 | |
| 53 | subscr = subscr_get_or_create(NULL, imsi); |
| 54 | if (!subscr) |
| 55 | return NULL; |
| 56 | |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 57 | if (!subscr->sgsn_data) |
| 58 | subscr->sgsn_data = sgsn_subscriber_data_alloc(subscr); |
| 59 | |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 60 | subscr->keep_in_ram = 1; |
| 61 | |
| 62 | return subscr; |
| 63 | } |
| 64 | |
| 65 | struct gsm_subscriber *gprs_subscr_get_by_imsi(const char *imsi) |
| 66 | { |
| 67 | return subscr_active_by_imsi(NULL, imsi); |
| 68 | } |
| 69 | |
| 70 | void gprs_subscr_delete(struct gsm_subscriber *subscr) |
| 71 | { |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 72 | if (subscr->sgsn_data->mm) { |
| 73 | subscr_put(subscr->sgsn_data->mm->subscr); |
| 74 | subscr->sgsn_data->mm->subscr = NULL; |
| 75 | subscr->sgsn_data->mm = NULL; |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 76 | } |
| 77 | |
| 78 | if ((subscr->flags & GPRS_SUBSCRIBER_CANCELLED) || |
| 79 | (subscr->flags & GSM_SUBSCRIBER_FIRST_CONTACT)) |
| 80 | subscr->keep_in_ram = 0; |
| 81 | |
| 82 | subscr_put(subscr); |
| 83 | } |
| 84 | |
| 85 | void gprs_subscr_put_and_cancel(struct gsm_subscriber *subscr) |
| 86 | { |
| 87 | subscr->authorized = 0; |
| 88 | subscr->flags |= GPRS_SUBSCRIBER_CANCELLED; |
| 89 | |
| 90 | gprs_subscr_update(subscr); |
| 91 | |
| 92 | gprs_subscr_delete(subscr); |
| 93 | } |
| 94 | |
Jacob Erlbeck | 828059f | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 95 | int gprs_subscr_query_auth_info(struct gsm_subscriber *subscr) |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 96 | { |
Jacob Erlbeck | 828059f | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 97 | /* TODO: Implement remote query to HLR, ... */ |
| 98 | |
| 99 | LOGMMCTXP(LOGL_INFO, subscr->sgsn_data->mm, |
| 100 | "subscriber auth info is not available (remote query NYI)\n"); |
| 101 | return -ENOTSUP; |
| 102 | } |
| 103 | |
| 104 | int gprs_subscr_location_update(struct gsm_subscriber *subscr) |
| 105 | { |
| 106 | /* TODO: Implement remote query to HLR, ... */ |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 107 | |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 108 | LOGMMCTXP(LOGL_INFO, subscr->sgsn_data->mm, |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 109 | "subscriber data is not available (remote query NYI)\n"); |
| 110 | return -ENOTSUP; |
| 111 | } |
| 112 | |
| 113 | void gprs_subscr_update(struct gsm_subscriber *subscr) |
| 114 | { |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 115 | LOGMMCTXP(LOGL_DEBUG, subscr->sgsn_data->mm, "Updating subscriber data\n"); |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 116 | |
Jacob Erlbeck | 828059f | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 117 | subscr->flags &= ~GPRS_SUBSCRIBER_UPDATE_LOCATION_PENDING; |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 118 | subscr->flags &= ~GSM_SUBSCRIBER_FIRST_CONTACT; |
| 119 | |
Jacob Erlbeck | 359cafa | 2014-12-02 11:28:38 +0100 | [diff] [blame] | 120 | sgsn_update_subscriber_data(subscr->sgsn_data->mm, subscr); |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 121 | } |
| 122 | |
Jacob Erlbeck | 828059f | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 123 | void gprs_subscr_update_auth_info(struct gsm_subscriber *subscr) |
| 124 | { |
| 125 | LOGMMCTXP(LOGL_DEBUG, subscr->sgsn_data->mm, |
| 126 | "Updating subscriber authentication info\n"); |
| 127 | |
| 128 | subscr->flags &= ~GPRS_SUBSCRIBER_UPDATE_AUTH_INFO_PENDING; |
| 129 | subscr->flags &= ~GSM_SUBSCRIBER_FIRST_CONTACT; |
| 130 | |
| 131 | sgsn_update_subscriber_data(subscr->sgsn_data->mm, subscr); |
| 132 | } |
| 133 | |
| 134 | struct gsm_subscriber *gprs_subscr_get_or_create_by_mmctx(struct sgsn_mm_ctx *mmctx) |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 135 | { |
| 136 | struct gsm_subscriber *subscr = NULL; |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 137 | |
Jacob Erlbeck | 828059f | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 138 | if (mmctx->subscr) |
| 139 | return subscr_get(mmctx->subscr); |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 140 | |
Jacob Erlbeck | 828059f | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 141 | if (mmctx->imsi[0]) |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 142 | subscr = gprs_subscr_get_by_imsi(mmctx->imsi); |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 143 | |
| 144 | if (!subscr) { |
| 145 | subscr = gprs_subscr_get_or_create(mmctx->imsi); |
| 146 | subscr->flags |= GSM_SUBSCRIBER_FIRST_CONTACT; |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 147 | } |
| 148 | |
| 149 | if (strcpy(subscr->equipment.imei, mmctx->imei) != 0) { |
| 150 | strncpy(subscr->equipment.imei, mmctx->imei, GSM_IMEI_LENGTH-1); |
| 151 | subscr->equipment.imei[GSM_IMEI_LENGTH-1] = 0; |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 152 | } |
| 153 | |
Jacob Erlbeck | 828059f | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 154 | if (subscr->lac != mmctx->ra.lac) |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 155 | subscr->lac = mmctx->ra.lac; |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 156 | |
Jacob Erlbeck | 828059f | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 157 | subscr->sgsn_data->mm = mmctx; |
| 158 | mmctx->subscr = subscr_get(subscr); |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 159 | |
Jacob Erlbeck | 828059f | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 160 | return subscr; |
| 161 | } |
| 162 | |
| 163 | int gprs_subscr_request_update_location(struct sgsn_mm_ctx *mmctx) |
| 164 | { |
| 165 | struct gsm_subscriber *subscr = NULL; |
| 166 | int rc; |
| 167 | |
| 168 | LOGMMCTXP(LOGL_DEBUG, mmctx, "Requesting subscriber data update\n"); |
| 169 | |
| 170 | subscr = gprs_subscr_get_or_create_by_mmctx(mmctx); |
| 171 | |
| 172 | subscr->flags |= GPRS_SUBSCRIBER_UPDATE_LOCATION_PENDING; |
| 173 | |
| 174 | rc = gprs_subscr_location_update(subscr); |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 175 | subscr_put(subscr); |
Jacob Erlbeck | 828059f | 2014-11-28 14:55:25 +0100 | [diff] [blame] | 176 | return rc; |
| 177 | } |
| 178 | |
| 179 | int gprs_subscr_request_auth_info(struct sgsn_mm_ctx *mmctx) |
| 180 | { |
| 181 | struct gsm_subscriber *subscr = NULL; |
| 182 | int rc; |
| 183 | |
| 184 | LOGMMCTXP(LOGL_DEBUG, mmctx, "Requesting subscriber authentication info\n"); |
| 185 | |
| 186 | subscr = gprs_subscr_get_or_create_by_mmctx(mmctx); |
| 187 | |
| 188 | subscr->flags |= GPRS_SUBSCRIBER_UPDATE_AUTH_INFO_PENDING; |
| 189 | |
| 190 | rc = gprs_subscr_query_auth_info(subscr); |
| 191 | subscr_put(subscr); |
| 192 | return rc; |
Jacob Erlbeck | e8b6968 | 2014-11-12 10:12:11 +0100 | [diff] [blame] | 193 | } |