Harald Welte | b68899d | 2009-01-06 21:47:18 +0000 | [diff] [blame] | 1 | /* Paging helper and manager.... */ |
| 2 | /* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org> |
| 3 | * All Rights Reserved |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 6 | * it under the terms of the GNU Affero General Public License as published by |
| 7 | * the Free Software Foundation; either version 3 of the License, or |
Harald Welte | b68899d | 2009-01-06 21:47:18 +0000 | [diff] [blame] | 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 13 | * GNU Affero General Public License for more details. |
Harald Welte | b68899d | 2009-01-06 21:47:18 +0000 | [diff] [blame] | 14 | * |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 15 | * You should have received a copy of the GNU Affero General Public License |
| 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
Harald Welte | b68899d | 2009-01-06 21:47:18 +0000 | [diff] [blame] | 17 | * |
| 18 | */ |
| 19 | |
| 20 | #ifndef PAGING_H |
| 21 | #define PAGING_H |
| 22 | |
Harald Welte | 12247c6 | 2009-05-21 07:23:02 +0000 | [diff] [blame] | 23 | #include <stdlib.h> |
Harald Welte | b68899d | 2009-01-06 21:47:18 +0000 | [diff] [blame] | 24 | #include <string.h> |
| 25 | |
Pablo Neira Ayuso | 136f453 | 2011-03-22 16:47:59 +0100 | [diff] [blame] | 26 | #include <osmocom/core/linuxlist.h> |
Pablo Neira Ayuso | 136f453 | 2011-03-22 16:47:59 +0100 | [diff] [blame] | 27 | #include <osmocom/core/timer.h> |
Harald Welte | b68899d | 2009-01-06 21:47:18 +0000 | [diff] [blame] | 28 | |
Neels Hofmeyr | c016479 | 2017-09-04 15:15:32 +0200 | [diff] [blame] | 29 | #include <osmocom/bsc/gsm_data.h> |
| 30 | #include <osmocom/bsc/bsc_subscriber.h> |
Neels Hofmeyr | 766f590 | 2020-09-18 02:49:15 +0200 | [diff] [blame] | 31 | #include <osmocom/bsc/bsc_msc_data.h> |
Neels Hofmeyr | a5c71bf | 2017-01-25 16:15:43 +0100 | [diff] [blame] | 32 | |
Harald Welte | f4b66fb | 2017-12-11 15:21:48 +0100 | [diff] [blame] | 33 | struct bsc_msc_data; |
| 34 | |
Neels Hofmeyr | 766f590 | 2020-09-18 02:49:15 +0200 | [diff] [blame] | 35 | #define LOG_PAGING(PARAMS, SUBSYS, LEVEL, fmt, args...) \ |
Neels Hofmeyr | 4c5fd38 | 2020-09-18 04:02:13 +0200 | [diff] [blame^] | 36 | LOGP(SUBSYS, LEVEL, "(msc%d) Paging: %s: " fmt, \ |
Neels Hofmeyr | 766f590 | 2020-09-18 02:49:15 +0200 | [diff] [blame] | 37 | (PARAMS)->msc ? (PARAMS)->msc->nr : -1, \ |
Neels Hofmeyr | 4c5fd38 | 2020-09-18 04:02:13 +0200 | [diff] [blame^] | 38 | bsc_subscr_name((PARAMS)->bsub), \ |
Neels Hofmeyr | 766f590 | 2020-09-18 02:49:15 +0200 | [diff] [blame] | 39 | ##args) |
| 40 | |
| 41 | #define LOG_PAGING_BTS(PARAMS, BTS, SUBSYS, LEVEL, fmt, args...) \ |
| 42 | LOG_PAGING(PARAMS, SUBSYS, LEVEL, "(bts%u) " fmt, (BTS) ? (BTS)->nr : 255, ##args) |
| 43 | |
| 44 | struct bsc_paging_params { |
| 45 | struct bsc_msc_data *msc; |
Neels Hofmeyr | 4c5fd38 | 2020-09-18 04:02:13 +0200 | [diff] [blame^] | 46 | struct bsc_subscr *bsub; |
Neels Hofmeyr | 766f590 | 2020-09-18 02:49:15 +0200 | [diff] [blame] | 47 | uint32_t tmsi; |
| 48 | struct osmo_mobile_identity imsi; |
| 49 | uint8_t chan_needed; |
| 50 | struct gsm0808_cell_id_list2 cil; |
| 51 | }; |
| 52 | |
Holger Hans Peter Freyther | 85334f1 | 2010-11-09 17:00:42 +0100 | [diff] [blame] | 53 | /** |
| 54 | * A pending paging request |
| 55 | */ |
| 56 | struct gsm_paging_request { |
| 57 | /* list_head for list of all paging requests */ |
| 58 | struct llist_head entry; |
| 59 | /* the subscriber which we're paging. Later gsm_paging_request |
Neels Hofmeyr | 6d804b1 | 2017-02-18 22:20:46 +0100 | [diff] [blame] | 60 | * should probably become a part of the bsc_subsrc struct? */ |
| 61 | struct bsc_subscr *bsub; |
Holger Hans Peter Freyther | 85334f1 | 2010-11-09 17:00:42 +0100 | [diff] [blame] | 62 | /* back-pointer to the BTS on which we are paging */ |
| 63 | struct gsm_bts *bts; |
| 64 | /* what kind of channel type do we ask the MS to establish */ |
| 65 | int chan_type; |
| 66 | |
| 67 | /* Timer 3113: how long do we try to page? */ |
Pablo Neira Ayuso | bf540cb | 2011-05-06 12:11:06 +0200 | [diff] [blame] | 68 | struct osmo_timer_list T3113; |
Holger Hans Peter Freyther | 85334f1 | 2010-11-09 17:00:42 +0100 | [diff] [blame] | 69 | |
Holger Hans Peter Freyther | d3baf41 | 2010-12-23 18:19:17 +0100 | [diff] [blame] | 70 | /* How often did we ask the BTS to page? */ |
| 71 | int attempts; |
| 72 | |
Harald Welte | f4b66fb | 2017-12-11 15:21:48 +0100 | [diff] [blame] | 73 | /* MSC that has issued this paging */ |
| 74 | struct bsc_msc_data *msc; |
Holger Hans Peter Freyther | 85334f1 | 2010-11-09 17:00:42 +0100 | [diff] [blame] | 75 | }; |
| 76 | |
Harald Welte | b68899d | 2009-01-06 21:47:18 +0000 | [diff] [blame] | 77 | /* schedule paging request */ |
Neels Hofmeyr | 4c5fd38 | 2020-09-18 04:02:13 +0200 | [diff] [blame^] | 78 | int paging_request_bts(const struct bsc_paging_params *params, struct gsm_bts *bts); |
Harald Welte | b68899d | 2009-01-06 21:47:18 +0000 | [diff] [blame] | 79 | |
Neels Hofmeyr | 65a13b4 | 2020-09-12 01:01:58 +0000 | [diff] [blame] | 80 | struct bsc_msc_data *paging_request_stop(struct gsm_bts *bts, struct bsc_subscr *bsub); |
Harald Welte | 763da00 | 2009-02-06 12:52:14 +0000 | [diff] [blame] | 81 | |
Holger Freyther | 392209c | 2009-02-10 00:06:19 +0000 | [diff] [blame] | 82 | /* update paging load */ |
Holger Hans Peter Freyther | c42ad8b | 2011-04-18 17:04:00 +0200 | [diff] [blame] | 83 | void paging_update_buffer_space(struct gsm_bts *bts, uint16_t); |
Holger Freyther | 392209c | 2009-02-10 00:06:19 +0000 | [diff] [blame] | 84 | |
Holger Hans Peter Freyther | 66e14cd | 2011-04-26 15:52:34 +0200 | [diff] [blame] | 85 | /* pending paging requests */ |
| 86 | unsigned int paging_pending_requests_nr(struct gsm_bts *bts); |
| 87 | |
Harald Welte | d382bf6 | 2017-12-11 15:33:35 +0100 | [diff] [blame] | 88 | void paging_flush_bts(struct gsm_bts *bts, struct bsc_msc_data *msc); |
| 89 | void paging_flush_network(struct gsm_network *net, struct bsc_msc_data *msc); |
| 90 | |
Neels Hofmeyr | 86ce105 | 2020-09-18 02:49:32 +0200 | [diff] [blame] | 91 | int bsc_paging_start(struct bsc_paging_params *params); |
Harald Welte | b68899d | 2009-01-06 21:47:18 +0000 | [diff] [blame] | 92 | #endif |