Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 1 | /* Everything related to the BSC connection */ |
| 2 | /* |
| 3 | * (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org> |
| 4 | * (C) 2010 by On-Waves |
| 5 | * All Rights Reserved |
| 6 | * |
Holger Hans Peter Freyther | de56c22 | 2011-01-16 17:45:14 +0100 | [diff] [blame] | 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 |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 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 |
Holger Hans Peter Freyther | de56c22 | 2011-01-16 17:45:14 +0100 | [diff] [blame] | 15 | * GNU Affero General Public License for more details. |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 16 | * |
Holger Hans Peter Freyther | de56c22 | 2011-01-16 17:45:14 +0100 | [diff] [blame] | 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/>. |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 19 | * |
| 20 | */ |
| 21 | |
| 22 | #ifndef BSC_DATA_H |
| 23 | #define BSC_DATA_H |
| 24 | |
Holger Hans Peter Freyther | cbf7d18 | 2010-07-31 05:25:35 +0800 | [diff] [blame] | 25 | #include <osmocore/linuxlist.h> |
| 26 | #include <osmocore/select.h> |
| 27 | #include <osmocore/timer.h> |
| 28 | #include <osmocore/write_queue.h> |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 29 | |
Holger Hans Peter Freyther | 0e4e35f | 2010-09-30 03:04:28 +0800 | [diff] [blame] | 30 | #include <osmocore/protocol/gsm_04_08.h> |
| 31 | |
Holger Hans Peter Freyther | cf381e2 | 2010-08-04 18:39:26 +0800 | [diff] [blame] | 32 | #include <osmocom/sccp/sccp.h> |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 33 | |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 34 | |
| 35 | #include <netinet/in.h> |
| 36 | #include <arpa/inet.h> |
| 37 | |
| 38 | struct bsc_data; |
| 39 | struct snmp_mtp_session; |
| 40 | |
| 41 | /** |
| 42 | * A link to the underlying MTP2 library or such |
| 43 | */ |
| 44 | struct link_data { |
| 45 | union { |
| 46 | struct { |
| 47 | struct thread_notifier *notifier; |
| 48 | struct llist_head mtp_queue; |
| 49 | struct timer_list mtp_timeout; |
| 50 | } c7; |
| 51 | struct { |
| 52 | struct write_queue write_queue; |
| 53 | struct sockaddr_in remote; |
| 54 | struct snmp_mtp_session *session; |
Holger Hans Peter Freyther | b6edf97 | 2011-01-02 16:41:11 +0100 | [diff] [blame] | 55 | int link_index; |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 56 | int reset_timeout; |
| 57 | } udp; |
| 58 | }; |
| 59 | |
| 60 | int pcap_fd; |
| 61 | struct bsc_data *bsc; |
Holger Hans Peter Freyther | 569f1e1 | 2011-01-02 18:47:49 +0100 | [diff] [blame^] | 62 | struct mtp_link_set *the_link; |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 63 | |
| 64 | struct timer_list link_activate; |
| 65 | int forced_down; |
| 66 | |
| 67 | int (*start)(struct link_data *); |
| 68 | int (*write)(struct link_data *, struct msgb *msg); |
| 69 | int (*shutdown)(struct link_data *); |
| 70 | int (*reset)(struct link_data *data); |
| 71 | int (*clear_queue)(struct link_data *data); |
| 72 | }; |
| 73 | |
| 74 | |
| 75 | struct bsc_data { |
| 76 | /* MSC */ |
| 77 | char *msc_address; |
| 78 | struct write_queue msc_connection; |
| 79 | struct timer_list reconnect_timer; |
| 80 | int first_contact; |
| 81 | int msc_time; |
| 82 | struct timer_list msc_timeout; |
| 83 | int msc_ip_dscp; |
| 84 | |
| 85 | int ping_time; |
| 86 | int pong_time; |
| 87 | struct timer_list ping_timeout; |
| 88 | struct timer_list pong_timeout; |
| 89 | |
Holger Hans Peter Freyther | 0c95c6a | 2010-08-07 02:37:43 +0800 | [diff] [blame] | 90 | int msc_link_down; |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 91 | struct llist_head sccp_connections; |
| 92 | struct timer_list reset_timeout; |
| 93 | int reset_count; |
| 94 | |
| 95 | struct timer_list start_timer; |
| 96 | |
| 97 | int setup; |
| 98 | |
| 99 | struct link_data link; |
| 100 | |
| 101 | const char *token; |
| 102 | |
| 103 | /* mgcp messgaes */ |
| 104 | struct write_queue mgcp_agent; |
Holger Hans Peter Freyther | 7942abc | 2010-09-30 00:34:46 +0800 | [diff] [blame] | 105 | |
| 106 | int dpc; |
| 107 | int opc; |
Holger Hans Peter Freyther | 7a72556 | 2011-01-01 13:34:58 +0100 | [diff] [blame] | 108 | int sccp_opc; |
Holger Hans Peter Freyther | 7942abc | 2010-09-30 00:34:46 +0800 | [diff] [blame] | 109 | int src_port; |
| 110 | int udp_port; |
| 111 | char *udp_ip; |
| 112 | int once; |
Holger Hans Peter Freyther | 0e4e35f | 2010-09-30 03:04:28 +0800 | [diff] [blame] | 113 | |
Holger Hans Peter Freyther | b38b33b | 2010-11-26 21:21:04 +0100 | [diff] [blame] | 114 | /* the network header to use */ |
| 115 | int ni_ni; |
| 116 | int ni_spare; |
| 117 | |
Holger Hans Peter Freyther | 0e4e35f | 2010-09-30 03:04:28 +0800 | [diff] [blame] | 118 | /* LAC of the cell */ |
| 119 | struct gsm48_loc_area_id lai; |
| 120 | uint16_t mcc; |
| 121 | uint16_t mnc; |
| 122 | uint16_t lac; |
Holger Hans Peter Freyther | 7694381 | 2010-11-16 11:14:34 +0100 | [diff] [blame] | 123 | |
| 124 | int forward_only; |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 125 | }; |
| 126 | |
| 127 | /* bsc related functions */ |
| 128 | void release_bsc_resources(struct bsc_data *bsc); |
| 129 | void bsc_link_down(struct link_data *data); |
| 130 | void bsc_link_up(struct link_data *data); |
| 131 | |
| 132 | /* msc related functions */ |
Holger Hans Peter Freyther | 594ee9a | 2010-11-16 11:03:19 +0100 | [diff] [blame] | 133 | int msc_init(struct bsc_data *bsc, int mgcp); |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 134 | void msc_send_rlc(struct bsc_data *bsc, struct sccp_source_reference *src, struct sccp_source_reference *dest); |
| 135 | void msc_send_reset(struct bsc_data *bsc); |
| 136 | void msc_send_msg(struct bsc_data *bsc, int rc, struct sccp_parse_result *, struct msgb *msg); |
Holger Hans Peter Freyther | 594ee9a | 2010-11-16 11:03:19 +0100 | [diff] [blame] | 137 | void msc_send_direct(struct bsc_data *bsc, struct msgb *msg); |
Holger Hans Peter Freyther | 43d9eec | 2010-08-07 01:54:19 +0800 | [diff] [blame] | 138 | void msc_close_connection(struct bsc_data *data); |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 139 | |
| 140 | /* connection tracking and action */ |
Holger Hans Peter Freyther | 569f1e1 | 2011-01-02 18:47:49 +0100 | [diff] [blame^] | 141 | void update_con_state(struct mtp_link_set *link, int rc, struct sccp_parse_result *result, struct msgb *msg, int from_msc, int sls); |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 142 | unsigned int sls_for_src_ref(struct sccp_source_reference *ref); |
| 143 | |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 144 | /* udp init */ |
| 145 | int link_udp_init(struct link_data *data, int src_port, const char *dest_ip, int port); |
Holger Hans Peter Freyther | a99b04b | 2011-01-02 11:23:54 +0100 | [diff] [blame] | 146 | int link_init(struct bsc_data *bsc); |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 147 | |
| 148 | /* MGCP */ |
Holger Hans Peter Freyther | 5aa1701 | 2010-07-31 04:37:26 +0800 | [diff] [blame] | 149 | void mgcp_forward(struct bsc_data *bsc, const uint8_t *data, unsigned int length); |
Holger Hans Peter Freyther | 97f66e2 | 2010-07-28 03:32:52 +0800 | [diff] [blame] | 150 | |
| 151 | #endif |