407 lines
8.5 KiB
C
407 lines
8.5 KiB
C
#ifndef _GSM_DATA_H
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#define _GSM_DATA_H
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#include <sys/types.h>
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#include <openbsc/timer.h>
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#include <openbsc/gsm_04_08.h>
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#define GSM_MAX_BTS 8
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#define BTS_MAX_TRX 8
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#define TRX_NR_TS 8
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#define TS_MAX_LCHAN 8
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#define HARDCODED_ARFCN 123
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#define HARDCODED_TSC 7
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#define HARDCODED_BSIC 0x3f /* NCC = 7 / BCC = 7 */
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enum gsm_hooks {
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GSM_HOOK_NM_SWLOAD,
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GSM_HOOK_RR_PAGING,
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};
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enum gsm_paging_event {
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GSM_PAGING_SUCCEEDED,
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GSM_PAGING_EXPIRED,
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};
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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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/*
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* Use the channel. As side effect the lchannel recycle timer
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* will be started.
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*/
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#define LCHAN_RELEASE_TIMEOUT 4, 0
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#define use_lchan(lchan) \
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do { lchan->use_count++; \
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DEBUGP(DCC, "lchan (bts=%d,trx=%d,ts=%d,ch=%d) increases usage to: %d\n", \
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lchan->ts->trx->bts->nr, lchan->ts->trx->nr, lchan->ts->nr, \
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lchan->nr, lchan->use_count); \
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bsc_schedule_timer(&lchan->release_timer, LCHAN_RELEASE_TIMEOUT); } while(0);
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#define put_lchan(lchan) \
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do { lchan->use_count--; \
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DEBUGP(DCC, "lchan (bts=%d,trx=%d,ts=%d,ch=%d) decreases usage to: %d\n", \
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lchan->ts->trx->bts->nr, lchan->ts->trx->nr, lchan->ts->nr, \
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lchan->nr, lchan->use_count); \
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} while(0);
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/* communications link with a BTS */
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struct gsm_bts_link {
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struct gsm_bts *bts;
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};
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enum gsm_call_type {
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GSM_CT_NONE,
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GSM_CT_MO,
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GSM_CT_MT,
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};
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enum gsm_call_state {
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GSM_CSTATE_NULL,
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GSM_CSTATE_INITIATED,
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GSM_CSTATE_ACTIVE,
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GSM_CSTATE_RELEASE_REQ,
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};
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struct gsm_lchan;
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struct gsm_subscriber;
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/* One end of a call */
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struct gsm_call {
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enum gsm_call_type type;
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enum gsm_call_state state;
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u_int8_t transaction_id; /* 10.3.2 */
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/* the 'local' channel */
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struct gsm_lchan *local_lchan;
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/* the 'remote' channel */
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struct gsm_lchan *remote_lchan;
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/* the 'remote' subscriber */
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struct gsm_subscriber *called_subscr;
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};
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enum gsm_phys_chan_config {
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GSM_PCHAN_NONE,
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GSM_PCHAN_CCCH,
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GSM_PCHAN_CCCH_SDCCH4,
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GSM_PCHAN_TCH_F,
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GSM_PCHAN_TCH_H,
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GSM_PCHAN_SDCCH8_SACCH8C,
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GSM_PCHAN_UNKNOWN,
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};
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enum gsm_chan_t {
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GSM_LCHAN_NONE,
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GSM_LCHAN_SDCCH,
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GSM_LCHAN_TCH_F,
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GSM_LCHAN_TCH_H,
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GSM_LCHAN_UNKNOWN,
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};
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/* Channel Request reason */
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enum gsm_chreq_reason_t {
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GSM_CHREQ_REASON_EMERG,
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GSM_CHREQ_REASON_PAG,
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GSM_CHREQ_REASON_CALL,
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GSM_CHREQ_REASON_LOCATION_UPD,
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GSM_CHREQ_REASON_OTHER,
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};
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/* Network Management State */
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struct gsm_nm_state {
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u_int8_t operational;
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u_int8_t administrative;
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u_int8_t availability;
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};
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struct gsm_attr {
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u_int8_t len;
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u_int8_t data[0];
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};
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/*
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* LOCATION UPDATING REQUEST state
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*
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* Our current operation is:
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* - Get imei/tmsi
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* - Accept/Reject according to global policy
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*/
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struct gsm_loc_updating_operation {
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struct timer_list updating_timer;
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int waiting_for_imsi : 1;
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int waiting_for_imei : 1;
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};
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struct gsm_lchan {
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/* The TS that we're part of */
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struct gsm_bts_trx_ts *ts;
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/* The logical subslot number in the TS */
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u_int8_t nr;
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/* The logical channel type */
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enum gsm_chan_t type;
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/* If TCH, traffic channel mode */
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enum gsm_chan_t tch_mode;
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/* Power levels for MS and BTS */
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u_int8_t bs_power;
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u_int8_t ms_power;
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/* To whom we are allocated at the moment */
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struct gsm_subscriber *subscr;
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/* Timer started to release the channel */
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struct timer_list release_timer;
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/* local end of a call, if any */
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struct gsm_call call;
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/* temporary user data, to be removed... and merged into gsm_call */
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void *user_data;
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/*
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* Operations that have a state and might be pending
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*/
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struct gsm_loc_updating_operation *loc_operation;
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/* use count. how many users use this channel */
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unsigned int use_count;
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};
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struct gsm_e1_subslot {
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/* Number of E1 link */
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u_int8_t e1_nr;
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/* Number of E1 TS inside E1 link */
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u_int8_t e1_ts;
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/* Sub-slot within the E1 TS, 0xff if full TS */
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u_int8_t e1_ts_ss;
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};
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#define BTS_TRX_F_ACTIVATED 0x0001
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/* One Timeslot in a TRX */
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struct gsm_bts_trx_ts {
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struct gsm_bts_trx *trx;
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/* number of this timeslot at the TRX */
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u_int8_t nr;
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enum gsm_phys_chan_config pchan;
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unsigned int flags;
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struct gsm_nm_state nm_state;
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struct gsm_attr *nm_attr;
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/* To which E1 subslot are we connected */
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struct gsm_e1_subslot e1_link;
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struct {
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u_int32_t bound_ip;
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u_int16_t bound_port;
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u_int8_t attr_fc;
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u_int16_t attr_f8;
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} abis_ip;
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struct gsm_lchan lchan[TS_MAX_LCHAN];
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};
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/* One TRX in a BTS */
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struct gsm_bts_trx {
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struct gsm_bts *bts;
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/* number of this TRX in the BTS */
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u_int8_t nr;
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/* how do we talk RSL with this TRX? */
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struct e1inp_sign_link *rsl_link;
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struct gsm_nm_state nm_state;
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struct gsm_attr *nm_attr;
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struct {
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struct gsm_nm_state nm_state;
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} bb_transc;
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u_int16_t arfcn;
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union {
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struct {
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struct {
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struct gsm_nm_state nm_state;
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} bbsig;
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struct {
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struct gsm_nm_state nm_state;
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} pa;
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} bs11;
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};
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struct gsm_bts_trx_ts ts[TRX_NR_TS];
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};
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enum gsm_bts_type {
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GSM_BTS_TYPE_UNKNOWN,
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GSM_BTS_TYPE_BS11,
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GSM_BTS_TYPE_NANOBTS_900,
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GSM_BTS_TYPE_NANOBTS_1800,
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};
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/**
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* A pending paging request
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*/
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struct gsm_paging_request {
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/* list_head for list of all paging requests */
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struct llist_head entry;
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/* the subscriber which we're paging. Later gsm_paging_request
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* should probably become a part of the gsm_subscriber struct? */
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struct gsm_subscriber *subscr;
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/* back-pointer to the BTS on which we are paging */
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struct gsm_bts *bts;
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/* what kind of channel type do we ask the MS to establish */
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int chan_type;
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/* Timer 3113: how long do we try to page? */
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struct timer_list T3113;
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/* callback to be called in case paging completes */
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gsm_cbfn *cbfn;
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void *cbfn_param;
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};
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#define T3113_VALUE 60, 0
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/*
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* This keeps track of the paging status of one BTS. It
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* includes a number of pending requests, a back pointer
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* to the gsm_bts, a timer and some more state.
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*/
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struct gsm_bts_paging_state {
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/* pending requests */
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struct llist_head pending_requests;
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struct gsm_paging_request *last_request;
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struct gsm_bts *bts;
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struct timer_list work_timer;
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/* load */
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u_int16_t available_slots;
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};
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struct gsm_envabtse {
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struct gsm_nm_state nm_state;
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};
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/* One BTS */
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struct gsm_bts {
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struct gsm_network *network;
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/* number of ths BTS in network */
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u_int8_t nr;
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/* location area code of this BTS */
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u_int8_t location_area_code;
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/* Training Sequence Code */
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u_int8_t tsc;
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/* Base Station Identification Code (BSIC) */
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u_int8_t bsic;
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/* type of BTS */
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enum gsm_bts_type type;
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/* how do we talk OML with this TRX? */
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struct e1inp_sign_link *oml_link;
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/* Abis network management O&M handle */
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struct abis_nm_h *nmh;
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struct gsm_nm_state nm_state;
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struct gsm_attr *nm_attr;
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/* number of this BTS on given E1 link */
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u_int8_t bts_nr;
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struct gsm48_control_channel_descr chan_desc;
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/* paging state and control */
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struct gsm_bts_paging_state paging;
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/* CCCH is on C0 */
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struct gsm_bts_trx *c0;
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struct {
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struct gsm_nm_state nm_state;
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} site_mgr;
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/* ip.accesss Unit ID's have Site/BTS/TRX layout */
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union {
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struct {
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u_int16_t site_id;
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u_int16_t bts_id;
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} ip_access;
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struct {
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struct {
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struct gsm_nm_state nm_state;
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} cclk;
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struct {
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struct gsm_nm_state nm_state;
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} rack;
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struct gsm_envabtse envabtse[4];
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} bs11;
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};
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/* transceivers */
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int num_trx;
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struct gsm_bts_trx trx[BTS_MAX_TRX+1];
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};
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struct gsm_network {
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/* global parameters */
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u_int16_t country_code;
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u_int16_t network_code;
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char *name_long;
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char *name_short;
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unsigned int num_bts;
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/* private lists */
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struct gsm_bts bts[GSM_MAX_BTS+1];
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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 {
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u_int64_t id;
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struct gsm_subscriber *sender;
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struct gsm_subscriber *receiver;
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unsigned char header[SMS_HDR_SIZE];
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char text[SMS_TEXT_SIZE];
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};
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struct gsm_network *gsm_network_init(unsigned int num_bts, enum gsm_bts_type bts_type,
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u_int16_t country_code, u_int16_t network_code);
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const char *gsm_pchan_name(enum gsm_phys_chan_config c);
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const char *gsm_lchan_name(enum gsm_chan_t c);
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const char *gsm_chreq_name(enum gsm_chreq_reason_t c);
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char *gsm_ts_name(struct gsm_bts_trx_ts *ts);
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enum gsm_e1_event {
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EVT_E1_NONE,
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EVT_E1_TEI_UP,
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EVT_E1_TEI_DN,
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};
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void set_ts_e1link(struct gsm_bts_trx_ts *ts, u_int8_t e1_nr,
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u_int8_t e1_ts, u_int8_t e1_ts_ss);
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enum gsm_bts_type parse_btstype(char *arg);
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char *btstype2str(enum gsm_bts_type type);
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struct gsm_bts *gsm_bts_by_lac(struct gsm_network *net, unsigned int lac,
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struct gsm_bts *start_bts);
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static inline int is_ipaccess_bts(struct gsm_bts *bts)
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{
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switch (bts->type) {
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case GSM_BTS_TYPE_NANOBTS_900:
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case GSM_BTS_TYPE_NANOBTS_1800:
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return 1;
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default:
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break;
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}
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return 0;
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}
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#endif
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