278 lines
8.9 KiB
C
278 lines
8.9 KiB
C
#ifndef _GSM_DATA_H
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#define _GSM_DATA_H
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#include <stdint.h>
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#include <regex.h>
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#include <sys/types.h>
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#include <stdbool.h>
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#include <osmocom/core/timer.h>
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#include <osmocom/core/rate_ctr.h>
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#include <osmocom/core/select.h>
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#include <osmocom/core/stats.h>
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#include <osmocom/gsm/gsm48.h>
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#include <osmocom/crypt/auth.h>
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#include <osmocom/mgcp_client/mgcp_client.h>
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#include <osmocom/msc/msc_common.h>
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#include "gsm_data_shared.h"
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/* TS 48.008 DLCI containing DCCH/ACCH + SAPI */
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#define OMSC_LINKID_CB(__msgb) (__msgb)->cb[3]
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#include "../../bscconfig.h"
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#if BUILD_IU
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#include <osmocom/ranap/iu_client.h>
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#endif
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/** annotations for msgb ownership */
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#define __uses
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struct mncc_sock_state;
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struct vlr_instance;
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struct vlr_subscr;
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#define tmsi_from_string(str) strtoul(str, NULL, 10)
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struct msgb;
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typedef int gsm_cbfn(unsigned int hooknum,
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unsigned int event,
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struct msgb *msg,
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void *data, void *param);
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enum {
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MSC_CTR_LOC_UPDATE_TYPE_ATTACH,
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MSC_CTR_LOC_UPDATE_TYPE_NORMAL,
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MSC_CTR_LOC_UPDATE_TYPE_PERIODIC,
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MSC_CTR_LOC_UPDATE_TYPE_DETACH,
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MSC_CTR_LOC_UPDATE_FAILED,
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MSC_CTR_LOC_UPDATE_COMPLETED,
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MSC_CTR_CM_SERVICE_REQUEST_REJECTED,
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MSC_CTR_CM_SERVICE_REQUEST_ACCEPTED,
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MSC_CTR_PAGING_RESP_REJECTED,
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MSC_CTR_PAGING_RESP_ACCEPTED,
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MSC_CTR_SMS_SUBMITTED,
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MSC_CTR_SMS_NO_RECEIVER,
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MSC_CTR_SMS_DELIVERED,
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MSC_CTR_SMS_RP_ERR_MEM,
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MSC_CTR_SMS_RP_ERR_OTHER,
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MSC_CTR_SMS_DELIVER_UNKNOWN_ERROR,
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MSC_CTR_CALL_MO_SETUP,
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MSC_CTR_CALL_MO_CONNECT_ACK,
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MSC_CTR_CALL_MT_SETUP,
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MSC_CTR_CALL_MT_CONNECT,
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MSC_CTR_CALL_ACTIVE,
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MSC_CTR_CALL_COMPLETE,
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MSC_CTR_CALL_INCOMPLETE,
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MSC_CTR_NC_SS_MO_REQUESTS,
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MSC_CTR_NC_SS_MO_ESTABLISHED,
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MSC_CTR_NC_SS_MT_REQUESTS,
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MSC_CTR_NC_SS_MT_ESTABLISHED,
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MSC_CTR_BSSMAP_CIPHER_MODE_REJECT,
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MSC_CTR_BSSMAP_CIPHER_MODE_COMPLETE,
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};
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static const struct rate_ctr_desc msc_ctr_description[] = {
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[MSC_CTR_LOC_UPDATE_TYPE_ATTACH] = {"loc_update_type:attach", "Received location update imsi attach requests."},
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[MSC_CTR_LOC_UPDATE_TYPE_NORMAL] = {"loc_update_type:normal", "Received location update normal requests."},
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[MSC_CTR_LOC_UPDATE_TYPE_PERIODIC] = {"loc_update_type:periodic", "Received location update periodic requests."},
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[MSC_CTR_LOC_UPDATE_TYPE_DETACH] = {"loc_update_type:detach", "Received location update detach indication."},
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[MSC_CTR_LOC_UPDATE_FAILED] = {"loc_update_resp:failed", "Rejected location updates."},
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[MSC_CTR_LOC_UPDATE_COMPLETED] = {"loc_update_resp:completed", "Successful location updates."},
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[MSC_CTR_CM_SERVICE_REQUEST_REJECTED] = {"cm_service_request:rejected", "Rejected CM Service Request."},
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[MSC_CTR_CM_SERVICE_REQUEST_ACCEPTED] = {"cm_service_request:accepted", "Accepted CM Service Request."},
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[MSC_CTR_PAGING_RESP_REJECTED] = {"paging_resp:rejected", "Rejected Paging Response."},
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[MSC_CTR_PAGING_RESP_ACCEPTED] = {"paging_resp:accepted", "Accepted Paging Response."},
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[MSC_CTR_SMS_SUBMITTED] = {"sms:submitted", "Received a RPDU from a MS (MO)."},
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[MSC_CTR_SMS_NO_RECEIVER] = {"sms:no_receiver", "Counts SMS which couldn't routed because no receiver found."},
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[MSC_CTR_SMS_DELIVERED] = {"sms:delivered", "Global SMS Deliver attempts."},
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[MSC_CTR_SMS_RP_ERR_MEM] = {"sms:rp_err_mem", "CAUSE_MT_MEM_EXCEEDED errors of MS responses on a sms deliver attempt."},
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[MSC_CTR_SMS_RP_ERR_OTHER] = {"sms:rp_err_other", "Other error of MS responses on a sms delive attempt."},
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[MSC_CTR_SMS_DELIVER_UNKNOWN_ERROR] = {"sms:deliver_unknown_error", "Unknown error occured during sms delivery."},
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/* FIXME: count also sms delivered */
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[MSC_CTR_CALL_MO_SETUP] = {"call:mo_setup", "Received setup requests from a MS to init a MO call."},
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[MSC_CTR_CALL_MO_CONNECT_ACK] = {"call:mo_connect_ack", "Received a connect ack from MS of a MO call. Call is now succesful connected up."},
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[MSC_CTR_CALL_MT_SETUP] = {"call:mt_setup", "Sent setup requests to the MS (MT)."},
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[MSC_CTR_CALL_MT_CONNECT] = {"call:mt_connect", "Sent a connect to the MS (MT)."},
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[MSC_CTR_CALL_ACTIVE] = {"call:active", "Count total amount of calls that ever reached active state."},
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[MSC_CTR_CALL_COMPLETE] = {"call:complete", "Count total amount of calls which got terminated by disconnect req or ind after reaching active state."},
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[MSC_CTR_CALL_INCOMPLETE] = {"call:incomplete", "Count total amount of call which got terminated by any other reason after reaching active state."},
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[MSC_CTR_NC_SS_MO_REQUESTS] = {"nc_ss:mo_requests", "Received MS-initiated call independent SS/USSD requests."},
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[MSC_CTR_NC_SS_MO_ESTABLISHED] = {"nc_ss:mo_established", "Established MS-initiated call independent SS/USSD sessions."},
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[MSC_CTR_NC_SS_MT_REQUESTS] = {"nc_ss:mt_requests", "Received network-initiated call independent SS/USSD requests."},
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[MSC_CTR_NC_SS_MT_ESTABLISHED] = {"nc_ss:mt_established", "Established network-initiated call independent SS/USSD sessions."},
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[MSC_CTR_BSSMAP_CIPHER_MODE_REJECT] = {"bssmap:cipher_mode_reject", "Number of CIPHER MODE REJECT messages processed by BSSMAP layer"},
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[MSC_CTR_BSSMAP_CIPHER_MODE_COMPLETE] = {"bssmap:cipher_mode_complete", "Number of CIPHER MODE COMPLETE messages processed by BSSMAP layer"},
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};
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static const struct rate_ctr_group_desc msc_ctrg_desc = {
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"msc",
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"mobile switching center",
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OSMO_STATS_CLASS_GLOBAL,
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ARRAY_SIZE(msc_ctr_description),
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msc_ctr_description,
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};
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#define MSC_PAGING_RESPONSE_TIMER_DEFAULT 10
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struct gsm_tz {
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int override; /* if 0, use system's time zone instead. */
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int hr; /* hour */
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int mn; /* minute */
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int dst; /* daylight savings */
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};
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struct gsm_network {
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/* TODO MSCSPLIT the gsm_network struct is basically a kitchen sink for
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* global settings and variables, "madly" mixing BSC and MSC stuff. Split
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* this in e.g. struct osmo_bsc and struct osmo_msc, with the things
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* these have in common, like country and network code, put in yet
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* separate structs and placed as members in osmo_bsc and osmo_msc. */
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struct osmo_plmn_id plmn;
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char *name_long;
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char *name_short;
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/* bit-mask of permitted encryption algorithms. LSB=A5/0, MSB=A5/7 */
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uint8_t a5_encryption_mask;
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bool authentication_required;
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int send_mm_info;
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struct rate_ctr_group *msc_ctrs;
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struct osmo_counter *active_calls;
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struct osmo_counter *active_nc_ss;
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/* layer 4 */
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struct mncc_sock_state *mncc_state;
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mncc_recv_cb_t mncc_recv;
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struct llist_head upqueue;
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/*
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* TODO: Move the trans_list into the RAN connection and
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* create a pending list for MT transactions. These exist before
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* we have a RAN connection.
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*/
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struct llist_head trans_list;
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unsigned int paging_response_timer;
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/* Radio Resource Location Protocol (TS 04.31) */
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struct {
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enum rrlp_mode mode;
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} rrlp;
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struct gsm_sms_queue *sms_queue;
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/* control interface */
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struct ctrl_handle *ctrl;
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/* all active RAN connections. */
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struct llist_head ran_conns;
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/* if override is nonzero, this timezone data is used for all MM
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* contexts. */
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/* TODO: in OsmoNITB, tz-override used to be BTS-specific. To enable
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* BTS|RNC specific timezone overrides for multi-tz networks in
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* OsmoMSC, this should be tied to the location area code (LAC). */
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struct gsm_tz tz;
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/* MSC: GSUP server address of the HLR */
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const char *gsup_server_addr_str;
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uint16_t gsup_server_port;
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struct vlr_instance *vlr;
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/* Periodic location update default value */
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uint8_t t3212;
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/* Global MNCC guard timer value */
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int mncc_guard_timeout;
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struct {
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struct mgcp_client_conf conf;
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struct mgcp_client *client;
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} mgw;
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#if BUILD_IU
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struct {
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/* CS7 instance id number (set via VTY) */
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uint32_t cs7_instance;
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enum ranap_nsap_addr_enc rab_assign_addr_enc;
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struct osmo_sccp_instance *sccp;
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} iu;
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#endif
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struct {
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/* CS7 instance id number (set via VTY) */
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uint32_t cs7_instance;
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/* A list with the context information about
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* all BSCs we have connections with */
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struct llist_head bscs;
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struct osmo_sccp_instance *sccp;
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} a;
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struct {
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/* MSISDN to which to route MO emergency calls */
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char *route_to_msisdn;
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} emergency;
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};
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struct osmo_esme;
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enum gsm_sms_source_id {
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SMS_SOURCE_UNKNOWN = 0,
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SMS_SOURCE_MS, /* received from MS */
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SMS_SOURCE_VTY, /* received from VTY */
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SMS_SOURCE_SMPP, /* received via SMPP */
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};
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#define SMS_HDR_SIZE 128
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#define SMS_TEXT_SIZE 256
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struct gsm_sms_addr {
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uint8_t ton;
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uint8_t npi;
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char addr[21+1];
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};
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struct gsm_sms {
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unsigned long long id;
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struct vlr_subscr *receiver;
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struct gsm_sms_addr src, dst;
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enum gsm_sms_source_id source;
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struct {
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uint8_t transaction_id;
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uint32_t msg_ref;
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} gsm411;
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struct {
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struct osmo_esme *esme;
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uint32_t sequence_nr;
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int transaction_mode;
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char msg_id[16];
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} smpp;
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unsigned long validity_minutes;
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time_t created;
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bool is_report;
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uint8_t reply_path_req;
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uint8_t status_rep_req;
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uint8_t ud_hdr_ind;
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uint8_t protocol_id;
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uint8_t data_coding_scheme;
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uint8_t msg_ref;
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uint8_t user_data_len;
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uint8_t user_data[SMS_TEXT_SIZE];
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char text[SMS_TEXT_SIZE];
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};
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/* control interface handling */
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int bsc_base_ctrl_cmds_install(void);
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int msc_ctrl_cmds_install(struct gsm_network *net);
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#endif /* _GSM_DATA_H */
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