Holger Hans Peter Freyther | 857e5e6 | 2009-06-12 07:08:13 +0200 | [diff] [blame] | 1 | /* The concept of a subscriber for the MSC, roughly HLR/VLR functionality */ |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 2 | |
| 3 | /* (C) 2008 by Harald Welte <laforge@gnumonks.org> |
Holger Hans Peter Freyther | e7bd863 | 2013-06-30 15:30:47 +0200 | [diff] [blame] | 4 | * (C) 2009,2013 by Holger Hans Peter Freyther <zecke@selfish.org> |
Harald Welte | 8470bf2 | 2008-12-25 23:28:35 +0000 | [diff] [blame] | 5 | * |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 6 | * All Rights Reserved |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 9 | * it under the terms of the GNU Affero General Public License as published by |
| 10 | * the Free Software Foundation; either version 3 of the License, or |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 16 | * GNU Affero General Public License for more details. |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 17 | * |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 18 | * You should have received a copy of the GNU Affero General Public License |
| 19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 20 | * |
| 21 | */ |
| 22 | |
Harald Welte | 75a983f | 2008-12-27 21:34:06 +0000 | [diff] [blame] | 23 | #include <unistd.h> |
| 24 | #include <stdlib.h> |
| 25 | #include <stdio.h> |
| 26 | #include <string.h> |
Holger Freyther | 85a7b36 | 2009-04-18 13:48:55 +0200 | [diff] [blame] | 27 | #include <assert.h> |
Jan Luebbe | bfbdeec | 2012-12-27 00:27:16 +0100 | [diff] [blame] | 28 | #include <time.h> |
Max | e6052c4 | 2016-06-30 10:25:49 +0200 | [diff] [blame] | 29 | #include <stdbool.h> |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 30 | |
Pablo Neira Ayuso | 136f453 | 2011-03-22 16:47:59 +0100 | [diff] [blame] | 31 | #include <osmocom/core/talloc.h> |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 32 | |
Holger Hans Peter Freyther | 763b42a | 2010-12-29 11:07:22 +0100 | [diff] [blame] | 33 | #include <osmocom/vty/vty.h> |
| 34 | |
Harald Welte | 8470bf2 | 2008-12-25 23:28:35 +0000 | [diff] [blame] | 35 | #include <openbsc/gsm_subscriber.h> |
Sylvain Munaut | 5a86e06 | 2010-12-01 22:38:03 +0100 | [diff] [blame] | 36 | #include <openbsc/gsm_04_08.h> |
Holger Freyther | 3e0ef7c | 2009-06-02 02:54:48 +0000 | [diff] [blame] | 37 | #include <openbsc/debug.h> |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 38 | #include <openbsc/paging.h> |
Harald Welte | ea5cf30 | 2009-07-29 23:14:15 +0200 | [diff] [blame] | 39 | #include <openbsc/signal.h> |
Harald Welte | 75a983f | 2008-12-27 21:34:06 +0000 | [diff] [blame] | 40 | #include <openbsc/db.h> |
Holger Hans Peter Freyther | e7bd863 | 2013-06-30 15:30:47 +0200 | [diff] [blame] | 41 | #include <openbsc/chan_alloc.h> |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 42 | |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 43 | void *tall_sub_req_ctx; |
| 44 | |
Jan Luebbe | 6e30068 | 2012-12-25 18:58:34 +0100 | [diff] [blame] | 45 | extern struct llist_head *subscr_bsc_active_subscribers(void); |
Harald Welte | 75a983f | 2008-12-27 21:34:06 +0000 | [diff] [blame] | 46 | |
Sylvain Munaut | 5a86e06 | 2010-12-01 22:38:03 +0100 | [diff] [blame] | 47 | int gsm48_secure_channel(struct gsm_subscriber_connection *conn, int key_seq, |
| 48 | gsm_cbfn *cb, void *cb_data); |
| 49 | |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 50 | |
| 51 | /* |
| 52 | * Struct for pending channel requests. This is managed in the |
| 53 | * llist_head requests of each subscriber. The reference counting |
| 54 | * should work in such a way that a subscriber with a pending request |
| 55 | * remains in memory. |
| 56 | */ |
| 57 | struct subscr_request { |
| 58 | struct llist_head entry; |
| 59 | |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 60 | /* the callback data */ |
| 61 | gsm_cbfn *cbfn; |
| 62 | void *param; |
| 63 | }; |
| 64 | |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 65 | static struct gsm_subscriber *get_subscriber(struct gsm_subscriber_group *sgrp, |
Holger Hans Peter Freyther | 7634ec1 | 2013-10-04 08:35:11 +0200 | [diff] [blame] | 66 | int type, const char *ident) |
| 67 | { |
| 68 | struct gsm_subscriber *subscr = db_get_subscriber(type, ident); |
| 69 | if (subscr) |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 70 | subscr->group = sgrp; |
Holger Hans Peter Freyther | 7634ec1 | 2013-10-04 08:35:11 +0200 | [diff] [blame] | 71 | return subscr; |
| 72 | } |
| 73 | |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 74 | /* |
| 75 | * We got the channel assigned and can now hand this channel |
| 76 | * over to one of our callbacks. |
| 77 | */ |
Sylvain Munaut | 5a86e06 | 2010-12-01 22:38:03 +0100 | [diff] [blame] | 78 | static int subscr_paging_dispatch(unsigned int hooknum, unsigned int event, |
| 79 | struct msgb *msg, void *data, void *param) |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 80 | { |
Holger Hans Peter Freyther | d6d7aff | 2015-04-06 12:03:45 +0200 | [diff] [blame] | 81 | struct subscr_request *request, *tmp; |
Sylvain Munaut | 8a31a3f | 2010-12-01 23:04:03 +0100 | [diff] [blame] | 82 | struct gsm_subscriber_connection *conn = data; |
Sylvain Munaut | 5a86e06 | 2010-12-01 22:38:03 +0100 | [diff] [blame] | 83 | struct gsm_subscriber *subscr = param; |
Sylvain Munaut | 8a31a3f | 2010-12-01 23:04:03 +0100 | [diff] [blame] | 84 | struct paging_signal_data sig_data; |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 85 | |
Holger Hans Peter Freyther | d6d7aff | 2015-04-06 12:03:45 +0200 | [diff] [blame] | 86 | OSMO_ASSERT(subscr->is_paging); |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 87 | |
Holger Hans Peter Freyther | 778c7d1 | 2015-08-03 11:18:23 +0200 | [diff] [blame] | 88 | /* |
| 89 | * Stop paging on all other BTS. E.g. if this is |
| 90 | * the first timeout on a BTS then the others will |
| 91 | * timeout soon as well. Let's just stop everything |
| 92 | * and forget we wanted to page. |
| 93 | */ |
| 94 | paging_request_stop(NULL, subscr, NULL, NULL); |
Holger Hans Peter Freyther | 778c7d1 | 2015-08-03 11:18:23 +0200 | [diff] [blame] | 95 | |
Holger Hans Peter Freyther | d6d7aff | 2015-04-06 12:03:45 +0200 | [diff] [blame] | 96 | /* Inform parts of the system we don't know */ |
Sylvain Munaut | 8a31a3f | 2010-12-01 23:04:03 +0100 | [diff] [blame] | 97 | sig_data.subscr = subscr; |
| 98 | sig_data.bts = conn ? conn->bts : NULL; |
| 99 | sig_data.conn = conn; |
Holger Hans Peter Freyther | d3baf41 | 2010-12-23 18:19:17 +0100 | [diff] [blame] | 100 | sig_data.paging_result = event; |
Pablo Neira Ayuso | bbc5b99 | 2011-05-06 12:12:31 +0200 | [diff] [blame] | 101 | osmo_signal_dispatch( |
Sylvain Munaut | 8a31a3f | 2010-12-01 23:04:03 +0100 | [diff] [blame] | 102 | SS_PAGING, |
| 103 | event == GSM_PAGING_SUCCEEDED ? |
| 104 | S_PAGING_SUCCEEDED : S_PAGING_EXPIRED, |
| 105 | &sig_data |
| 106 | ); |
| 107 | |
Holger Hans Peter Freyther | d6d7aff | 2015-04-06 12:03:45 +0200 | [diff] [blame] | 108 | llist_for_each_entry_safe(request, tmp, &subscr->requests, entry) { |
| 109 | llist_del(&request->entry); |
| 110 | request->cbfn(hooknum, event, msg, data, request->param); |
| 111 | talloc_free(request); |
Holger Hans Peter Freyther | ffccb77 | 2010-12-28 17:47:43 +0100 | [diff] [blame] | 112 | } |
Holger Hans Peter Freyther | f72b3d5 | 2010-12-28 17:27:05 +0100 | [diff] [blame] | 113 | |
Holger Hans Peter Freyther | d6d7aff | 2015-04-06 12:03:45 +0200 | [diff] [blame] | 114 | /* balanced with the moment we start paging */ |
Holger Hans Peter Freyther | eb48caf | 2015-08-03 11:34:35 +0200 | [diff] [blame] | 115 | subscr->is_paging = 0; |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 116 | subscr_put(subscr); |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 117 | return 0; |
| 118 | } |
| 119 | |
Sylvain Munaut | 5a86e06 | 2010-12-01 22:38:03 +0100 | [diff] [blame] | 120 | static int subscr_paging_sec_cb(unsigned int hooknum, unsigned int event, |
| 121 | struct msgb *msg, void *data, void *param) |
| 122 | { |
| 123 | int rc; |
| 124 | |
| 125 | switch (event) { |
| 126 | case GSM_SECURITY_AUTH_FAILED: |
| 127 | /* Dispatch as paging failure */ |
| 128 | rc = subscr_paging_dispatch( |
| 129 | GSM_HOOK_RR_PAGING, GSM_PAGING_EXPIRED, |
| 130 | msg, data, param); |
| 131 | break; |
| 132 | |
| 133 | case GSM_SECURITY_NOAVAIL: |
| 134 | case GSM_SECURITY_SUCCEEDED: |
| 135 | /* Dispatch as paging failure */ |
| 136 | rc = subscr_paging_dispatch( |
| 137 | GSM_HOOK_RR_PAGING, GSM_PAGING_SUCCEEDED, |
| 138 | msg, data, param); |
| 139 | break; |
| 140 | |
| 141 | default: |
| 142 | rc = -EINVAL; |
| 143 | } |
| 144 | |
| 145 | return rc; |
| 146 | } |
| 147 | |
| 148 | static int subscr_paging_cb(unsigned int hooknum, unsigned int event, |
| 149 | struct msgb *msg, void *data, void *param) |
| 150 | { |
| 151 | struct gsm_subscriber_connection *conn = data; |
| 152 | struct gsm48_hdr *gh; |
| 153 | struct gsm48_pag_resp *pr; |
| 154 | |
| 155 | /* Other cases mean problem, dispatch direclty */ |
| 156 | if (event != GSM_PAGING_SUCCEEDED) |
| 157 | return subscr_paging_dispatch(hooknum, event, msg, data, param); |
| 158 | |
| 159 | /* Get paging response */ |
| 160 | gh = msgb_l3(msg); |
| 161 | pr = (struct gsm48_pag_resp *)gh->data; |
| 162 | |
| 163 | /* We _really_ have a channel, secure it now ! */ |
| 164 | return gsm48_secure_channel(conn, pr->key_seq, subscr_paging_sec_cb, param); |
| 165 | } |
| 166 | |
Holger Hans Peter Freyther | d6d7aff | 2015-04-06 12:03:45 +0200 | [diff] [blame] | 167 | struct subscr_request *subscr_request_channel(struct gsm_subscriber *subscr, |
| 168 | int channel_type, gsm_cbfn *cbfn, void *param) |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 169 | { |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 170 | int rc; |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 171 | struct subscr_request *request; |
| 172 | |
Holger Hans Peter Freyther | d6d7aff | 2015-04-06 12:03:45 +0200 | [diff] [blame] | 173 | /* Start paging.. we know it is async so we can do it before */ |
| 174 | if (!subscr->is_paging) { |
| 175 | LOGP(DMM, LOGL_DEBUG, "Subscriber %s not paged yet.\n", |
| 176 | subscr_name(subscr)); |
| 177 | rc = paging_request(subscr->group->net, subscr, channel_type, |
| 178 | subscr_paging_cb, subscr); |
| 179 | if (rc <= 0) { |
| 180 | LOGP(DMM, LOGL_ERROR, "Subscriber %s paging failed: %d\n", |
| 181 | subscr_name(subscr), rc); |
| 182 | return NULL; |
| 183 | } |
| 184 | /* reduced on the first paging callback */ |
| 185 | subscr_get(subscr); |
| 186 | subscr->is_paging = 1; |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 187 | } |
| 188 | |
Holger Hans Peter Freyther | d6d7aff | 2015-04-06 12:03:45 +0200 | [diff] [blame] | 189 | /* TODO: Stop paging in case of memory allocation failure */ |
| 190 | request = talloc_zero(subscr, struct subscr_request); |
| 191 | if (!request) |
| 192 | return NULL; |
| 193 | |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 194 | request->cbfn = cbfn; |
| 195 | request->param = param; |
Holger Hans Peter Freyther | d6d7aff | 2015-04-06 12:03:45 +0200 | [diff] [blame] | 196 | llist_add_tail(&request->entry, &subscr->requests); |
| 197 | return request; |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 198 | } |
| 199 | |
Holger Hans Peter Freyther | d6d7aff | 2015-04-06 12:03:45 +0200 | [diff] [blame] | 200 | void subscr_remove_request(struct subscr_request *request) |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 201 | { |
Holger Hans Peter Freyther | d6d7aff | 2015-04-06 12:03:45 +0200 | [diff] [blame] | 202 | llist_del(&request->entry); |
| 203 | talloc_free(request); |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 204 | } |
| 205 | |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 206 | struct gsm_subscriber *subscr_create_subscriber(struct gsm_subscriber_group *sgrp, |
Max | e6052c4 | 2016-06-30 10:25:49 +0200 | [diff] [blame] | 207 | const char *imsi) |
Holger Hans Peter Freyther | 7634ec1 | 2013-10-04 08:35:11 +0200 | [diff] [blame] | 208 | { |
Max | e6052c4 | 2016-06-30 10:25:49 +0200 | [diff] [blame] | 209 | struct gsm_subscriber *subscr = db_create_subscriber(imsi, |
| 210 | sgrp->net->ext_min, |
| 211 | sgrp->net->ext_max, |
| 212 | sgrp->net->auto_assign_exten); |
Holger Hans Peter Freyther | 7634ec1 | 2013-10-04 08:35:11 +0200 | [diff] [blame] | 213 | if (subscr) |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 214 | subscr->group = sgrp; |
Holger Hans Peter Freyther | 7634ec1 | 2013-10-04 08:35:11 +0200 | [diff] [blame] | 215 | return subscr; |
| 216 | } |
Sylvain Munaut | 1e24550 | 2010-12-01 21:07:29 +0100 | [diff] [blame] | 217 | |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 218 | struct gsm_subscriber *subscr_get_by_tmsi(struct gsm_subscriber_group *sgrp, |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 219 | uint32_t tmsi) |
Harald Welte | 75a983f | 2008-12-27 21:34:06 +0000 | [diff] [blame] | 220 | { |
Holger Hans Peter Freyther | 2223025 | 2009-08-19 12:53:57 +0200 | [diff] [blame] | 221 | char tmsi_string[14]; |
Holger Freyther | 12aa50d | 2009-01-01 18:02:05 +0000 | [diff] [blame] | 222 | struct gsm_subscriber *subscr; |
Harald Welte | 75a983f | 2008-12-27 21:34:06 +0000 | [diff] [blame] | 223 | |
Holger Freyther | 12aa50d | 2009-01-01 18:02:05 +0000 | [diff] [blame] | 224 | /* we might have a record in memory already */ |
Jan Luebbe | 6e30068 | 2012-12-25 18:58:34 +0100 | [diff] [blame] | 225 | llist_for_each_entry(subscr, subscr_bsc_active_subscribers(), entry) { |
Holger Hans Peter Freyther | 2223025 | 2009-08-19 12:53:57 +0200 | [diff] [blame] | 226 | if (tmsi == subscr->tmsi) |
Holger Freyther | 12aa50d | 2009-01-01 18:02:05 +0000 | [diff] [blame] | 227 | return subscr_get(subscr); |
Harald Welte | 75a983f | 2008-12-27 21:34:06 +0000 | [diff] [blame] | 228 | } |
| 229 | |
Holger Hans Peter Freyther | 2223025 | 2009-08-19 12:53:57 +0200 | [diff] [blame] | 230 | sprintf(tmsi_string, "%u", tmsi); |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 231 | return get_subscriber(sgrp, GSM_SUBSCRIBER_TMSI, tmsi_string); |
Harald Welte | 75a983f | 2008-12-27 21:34:06 +0000 | [diff] [blame] | 232 | } |
| 233 | |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 234 | struct gsm_subscriber *subscr_get_by_imsi(struct gsm_subscriber_group *sgrp, |
Harald Welte | 9176bd4 | 2009-07-23 18:46:00 +0200 | [diff] [blame] | 235 | const char *imsi) |
Harald Welte | 75a983f | 2008-12-27 21:34:06 +0000 | [diff] [blame] | 236 | { |
Holger Freyther | 12aa50d | 2009-01-01 18:02:05 +0000 | [diff] [blame] | 237 | struct gsm_subscriber *subscr; |
Harald Welte | 75a983f | 2008-12-27 21:34:06 +0000 | [diff] [blame] | 238 | |
Jan Luebbe | 6e30068 | 2012-12-25 18:58:34 +0100 | [diff] [blame] | 239 | llist_for_each_entry(subscr, subscr_bsc_active_subscribers(), entry) { |
Holger Freyther | 12aa50d | 2009-01-01 18:02:05 +0000 | [diff] [blame] | 240 | if (strcmp(subscr->imsi, imsi) == 0) |
| 241 | return subscr_get(subscr); |
Harald Welte | 75a983f | 2008-12-27 21:34:06 +0000 | [diff] [blame] | 242 | } |
| 243 | |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 244 | return get_subscriber(sgrp, GSM_SUBSCRIBER_IMSI, imsi); |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 245 | } |
| 246 | |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 247 | struct gsm_subscriber *subscr_get_by_extension(struct gsm_subscriber_group *sgrp, |
Harald Welte | 9176bd4 | 2009-07-23 18:46:00 +0200 | [diff] [blame] | 248 | const char *ext) |
Holger Freyther | 9c564b8 | 2009-02-09 23:39:20 +0000 | [diff] [blame] | 249 | { |
| 250 | struct gsm_subscriber *subscr; |
| 251 | |
Jan Luebbe | 6e30068 | 2012-12-25 18:58:34 +0100 | [diff] [blame] | 252 | llist_for_each_entry(subscr, subscr_bsc_active_subscribers(), entry) { |
Holger Freyther | 9c564b8 | 2009-02-09 23:39:20 +0000 | [diff] [blame] | 253 | if (strcmp(subscr->extension, ext) == 0) |
| 254 | return subscr_get(subscr); |
| 255 | } |
| 256 | |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 257 | return get_subscriber(sgrp, GSM_SUBSCRIBER_EXTENSION, ext); |
Holger Freyther | 9c564b8 | 2009-02-09 23:39:20 +0000 | [diff] [blame] | 258 | } |
| 259 | |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 260 | struct gsm_subscriber *subscr_get_by_id(struct gsm_subscriber_group *sgrp, |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 261 | unsigned long long id) |
| 262 | { |
| 263 | struct gsm_subscriber *subscr; |
| 264 | char buf[32]; |
| 265 | sprintf(buf, "%llu", id); |
| 266 | |
Jan Luebbe | 6e30068 | 2012-12-25 18:58:34 +0100 | [diff] [blame] | 267 | llist_for_each_entry(subscr, subscr_bsc_active_subscribers(), entry) { |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 268 | if (subscr->id == id) |
| 269 | return subscr_get(subscr); |
| 270 | } |
| 271 | |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 272 | return get_subscriber(sgrp, GSM_SUBSCRIBER_ID, buf); |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 273 | } |
| 274 | |
Holger Hans Peter Freyther | e7bd863 | 2013-06-30 15:30:47 +0200 | [diff] [blame] | 275 | int subscr_update_expire_lu(struct gsm_subscriber *s, struct gsm_bts *bts) |
| 276 | { |
| 277 | int rc; |
| 278 | |
| 279 | /* Table 10.5.33: The T3212 timeout value field is coded as the |
| 280 | * binary representation of the timeout value for |
| 281 | * periodic updating in decihours. Mark the subscriber as |
| 282 | * inactive if it missed two consecutive location updates. |
| 283 | * Timeout is twice the t3212 value plus one minute */ |
Holger Hans Peter Freyther | c63f6f1 | 2013-07-27 21:07:57 +0200 | [diff] [blame] | 284 | |
| 285 | /* Is expiration handling enabled? */ |
| 286 | if (bts->si_common.chan_desc.t3212 == 0) |
| 287 | s->expire_lu = GSM_SUBSCRIBER_NO_EXPIRATION; |
| 288 | else |
| 289 | s->expire_lu = time(NULL) + |
Holger Hans Peter Freyther | e7bd863 | 2013-06-30 15:30:47 +0200 | [diff] [blame] | 290 | (bts->si_common.chan_desc.t3212 * 60 * 6 * 2) + 60; |
Holger Hans Peter Freyther | c63f6f1 | 2013-07-27 21:07:57 +0200 | [diff] [blame] | 291 | |
Holger Hans Peter Freyther | e7bd863 | 2013-06-30 15:30:47 +0200 | [diff] [blame] | 292 | rc = db_sync_subscriber(s); |
| 293 | db_subscriber_update(s); |
| 294 | return rc; |
| 295 | } |
Harald Welte | 7604218 | 2009-08-08 16:03:15 +0200 | [diff] [blame] | 296 | |
Holger Freyther | 4a49e77 | 2009-04-12 05:37:29 +0000 | [diff] [blame] | 297 | int subscr_update(struct gsm_subscriber *s, struct gsm_bts *bts, int reason) |
Harald Welte | 52b1f98 | 2008-12-23 20:25:15 +0000 | [diff] [blame] | 298 | { |
Holger Hans Peter Freyther | e25445b | 2010-12-25 19:40:14 +0100 | [diff] [blame] | 299 | int rc; |
| 300 | |
Holger Freyther | 4a49e77 | 2009-04-12 05:37:29 +0000 | [diff] [blame] | 301 | /* FIXME: Migrate pending requests from one BSC to another */ |
| 302 | switch (reason) { |
| 303 | case GSM_SUBSCRIBER_UPDATE_ATTACHED: |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 304 | s->group = bts->network->subscr_group; |
Holger Freyther | 6d5200b | 2009-06-02 02:54:38 +0000 | [diff] [blame] | 305 | /* Indicate "attached to LAC" */ |
| 306 | s->lac = bts->location_area_code; |
Jan Luebbe | bfbdeec | 2012-12-27 00:27:16 +0100 | [diff] [blame] | 307 | |
Holger Hans Peter Freyther | e7bd863 | 2013-06-30 15:30:47 +0200 | [diff] [blame] | 308 | LOGP(DMM, LOGL_INFO, "Subscriber %s ATTACHED LAC=%u\n", |
| 309 | subscr_name(s), s->lac); |
| 310 | |
Holger Hans Peter Freyther | e7bd863 | 2013-06-30 15:30:47 +0200 | [diff] [blame] | 311 | /* |
| 312 | * The below will set a new expire_lu but as a side-effect |
| 313 | * the new lac will be saved in the database. |
| 314 | */ |
| 315 | rc = subscr_update_expire_lu(s, bts); |
Pablo Neira Ayuso | bbc5b99 | 2011-05-06 12:12:31 +0200 | [diff] [blame] | 316 | osmo_signal_dispatch(SS_SUBSCR, S_SUBSCR_ATTACHED, s); |
Holger Freyther | 4a49e77 | 2009-04-12 05:37:29 +0000 | [diff] [blame] | 317 | break; |
| 318 | case GSM_SUBSCRIBER_UPDATE_DETACHED: |
Holger Freyther | c3d4b2d | 2009-06-04 14:27:39 +0000 | [diff] [blame] | 319 | /* Only detach if we are currently in this area */ |
| 320 | if (bts->location_area_code == s->lac) |
Holger Hans Peter Freyther | e48b956 | 2009-10-01 04:07:15 +0200 | [diff] [blame] | 321 | s->lac = GSM_LAC_RESERVED_DETACHED; |
Harald Welte | 2e6d468 | 2009-12-24 14:50:24 +0100 | [diff] [blame] | 322 | LOGP(DMM, LOGL_INFO, "Subscriber %s DETACHED\n", subscr_name(s)); |
Holger Hans Peter Freyther | e25445b | 2010-12-25 19:40:14 +0100 | [diff] [blame] | 323 | rc = db_sync_subscriber(s); |
| 324 | db_subscriber_update(s); |
Pablo Neira Ayuso | bbc5b99 | 2011-05-06 12:12:31 +0200 | [diff] [blame] | 325 | osmo_signal_dispatch(SS_SUBSCR, S_SUBSCR_DETACHED, s); |
Holger Freyther | 4a49e77 | 2009-04-12 05:37:29 +0000 | [diff] [blame] | 326 | break; |
| 327 | default: |
| 328 | fprintf(stderr, "subscr_update with unknown reason: %d\n", |
| 329 | reason); |
Holger Hans Peter Freyther | e25445b | 2010-12-25 19:40:14 +0100 | [diff] [blame] | 330 | rc = db_sync_subscriber(s); |
| 331 | db_subscriber_update(s); |
Holger Freyther | 4a49e77 | 2009-04-12 05:37:29 +0000 | [diff] [blame] | 332 | break; |
| 333 | }; |
Holger Hans Peter Freyther | e25445b | 2010-12-25 19:40:14 +0100 | [diff] [blame] | 334 | |
| 335 | return rc; |
Holger Freyther | 12aa50d | 2009-01-01 18:02:05 +0000 | [diff] [blame] | 336 | } |
| 337 | |
Holger Hans Peter Freyther | abd0cac | 2010-12-22 18:12:11 +0100 | [diff] [blame] | 338 | void subscr_update_from_db(struct gsm_subscriber *sub) |
| 339 | { |
| 340 | db_subscriber_update(sub); |
| 341 | } |
Holger Hans Peter Freyther | ebdd3cb | 2010-12-28 22:12:30 +0100 | [diff] [blame] | 342 | |
Jan Luebbe | bfbdeec | 2012-12-27 00:27:16 +0100 | [diff] [blame] | 343 | static void subscr_expire_callback(void *data, long long unsigned int id) |
| 344 | { |
| 345 | struct gsm_network *net = data; |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 346 | struct gsm_subscriber *s = subscr_get_by_id(net->subscr_group, id); |
Holger Hans Peter Freyther | e7bd863 | 2013-06-30 15:30:47 +0200 | [diff] [blame] | 347 | struct gsm_subscriber_connection *conn = connection_for_subscr(s); |
| 348 | |
| 349 | /* |
| 350 | * The subscriber is active and the phone stopped the timer. As |
| 351 | * we don't want to periodically update the database for active |
| 352 | * subscribers we will just do it when the subscriber was selected |
| 353 | * for expiration. This way on the next around another subscriber |
| 354 | * will be selected. |
| 355 | */ |
| 356 | if (conn && conn->expire_timer_stopped) { |
| 357 | LOGP(DMM, LOGL_DEBUG, "Not expiring subscriber %s (ID %llu)\n", |
| 358 | subscr_name(s), id); |
| 359 | subscr_update_expire_lu(s, conn->bts); |
Holger Hans Peter Freyther | 8159455 | 2015-08-04 11:37:30 +0200 | [diff] [blame] | 360 | subscr_put(s); |
Holger Hans Peter Freyther | e7bd863 | 2013-06-30 15:30:47 +0200 | [diff] [blame] | 361 | return; |
| 362 | } |
| 363 | |
Jan Luebbe | bfbdeec | 2012-12-27 00:27:16 +0100 | [diff] [blame] | 364 | |
Holger Hans Peter Freyther | 81cff91 | 2013-07-04 20:22:27 +0200 | [diff] [blame] | 365 | LOGP(DMM, LOGL_NOTICE, "Expiring inactive subscriber %s (ID %llu)\n", |
Jan Luebbe | bfbdeec | 2012-12-27 00:27:16 +0100 | [diff] [blame] | 366 | subscr_name(s), id); |
| 367 | s->lac = GSM_LAC_RESERVED_DETACHED; |
| 368 | db_sync_subscriber(s); |
| 369 | |
| 370 | subscr_put(s); |
| 371 | } |
| 372 | |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 373 | void subscr_expire(struct gsm_subscriber_group *sgrp) |
Jan Luebbe | bfbdeec | 2012-12-27 00:27:16 +0100 | [diff] [blame] | 374 | { |
Jacob Erlbeck | 1e30a28 | 2014-12-03 09:28:24 +0100 | [diff] [blame] | 375 | db_subscriber_expire(sgrp->net, subscr_expire_callback); |
Jan Luebbe | bfbdeec | 2012-12-27 00:27:16 +0100 | [diff] [blame] | 376 | } |