diff options
Diffstat (limited to 'usr.sbin/i4b/isdnd/timer.c')
| -rw-r--r-- | usr.sbin/i4b/isdnd/timer.c | 447 |
1 files changed, 0 insertions, 447 deletions
diff --git a/usr.sbin/i4b/isdnd/timer.c b/usr.sbin/i4b/isdnd/timer.c deleted file mode 100644 index 90bee19..0000000 --- a/usr.sbin/i4b/isdnd/timer.c +++ /dev/null @@ -1,447 +0,0 @@ -/* - * Copyright (c) 1997, 2002 Hellmuth Michaelis. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - *--------------------------------------------------------------------------- - * - * i4b daemon - timer/timing support routines - * ------------------------------------------ - * - * $FreeBSD$ - * - * last edit-date: [Sat May 13 13:13:13 2006] - * - *---------------------------------------------------------------------------*/ - -#include "isdnd.h" - -static int hr_callgate(void); -static void handle_reserved(cfg_entry_t *cep, time_t now); -static void handle_active(cfg_entry_t *cep, time_t now); -static void recover_illegal(cfg_entry_t *cep); - -/*---------------------------------------------------------------------------* - * recover from illegal state - *---------------------------------------------------------------------------*/ -static void -recover_illegal(cfg_entry_t *cep) -{ - llog(LL_ERR, "recover_illegal: ERROR, entry %s attempting disconnect!", cep->name); - sendm_disconnect_req(cep, (CAUSET_I4B << 8) | CAUSE_I4B_NORMAL); - llog(LL_ERR, "recover_illegal: ERROR, entry %s - reset state/cdid!", cep->name); - cep->state = ST_IDLE; - cep->cdid = CDID_UNUSED; -} - -/*---------------------------------------------------------------------------* - * start the timer - *---------------------------------------------------------------------------*/ -void -start_timer(cfg_entry_t *cep, int seconds) -{ - cep->timerval = cep->timerremain = seconds; -} - -/*---------------------------------------------------------------------------* - * stop the timer - *---------------------------------------------------------------------------*/ -void -stop_timer(cfg_entry_t *cep) -{ - cep->timerval = cep->timerremain = 0; -} - -/*---------------------------------------------------------------------------* - * callgate for handle_recovery() - *---------------------------------------------------------------------------*/ -static int -hr_callgate(void) -{ - static int tv_first = 1; - static struct timeval tv_last; - struct timeval tv_now; - - /* there must be 1 sec minimum between calls to this section */ - - if(tv_first) - { - gettimeofday(&tv_last, NULL); - tv_first = 0; - } - - gettimeofday(&tv_now, NULL); - - if((tv_now.tv_sec - tv_last.tv_sec) < 1) - { - - DBGL(DL_TIME, (llog(LL_DBG, "time < 1 - last %ld:%ld now %ld:%ld", - tv_last.tv_sec, tv_last.tv_usec, - tv_now.tv_sec, tv_now.tv_usec))); - return(1); - } - else if((tv_now.tv_sec - tv_last.tv_sec) == 1) - { - if(((1000000 - tv_last.tv_usec) + tv_now.tv_usec) < 900000) - { - DBGL(DL_TIME, (llog(LL_DBG, "time < 900000us - last %ld:%ld now %ld:%ld", - tv_last.tv_sec, tv_last.tv_usec, - tv_now.tv_sec, tv_now.tv_usec))); - return(1); - } - } - - DBGL(DL_TIME, (llog(LL_DBG, "time OK! - last %ld:%ld now %ld:%ld", - tv_last.tv_sec, tv_last.tv_usec, - tv_now.tv_sec, tv_now.tv_usec))); - - gettimeofday(&tv_last, NULL); - - return(0); -} - -/*---------------------------------------------------------------------------* - * timeout, recovery and retry handling - *---------------------------------------------------------------------------*/ -void -handle_recovery(void) -{ - cfg_entry_t *cep = NULL; - int i; - time_t now; - - if(hr_callgate()) /* last call to handle_recovery < 1 sec ? */ - return; /* yes, exit */ - - now = time(NULL); /* get current time */ - - /* walk thru all entries, look for work to do */ - - for(i=0; i < nentries; i++) - { - cep = &cfg_entry_tab[i]; /* ptr to config entry */ - - if(cep->budget_callbackperiod && cep->budget_callbackncalls) - { - if(cep->budget_callbackperiod_time <= now) - { - DBGL(DL_BDGT, (llog(LL_DBG, "%s: new cback-budget-period (%d s, %d left)", - cep->name, cep->budget_callbackperiod, cep->budget_callbackncalls_cnt))); - cep->budget_callbackperiod_time = now + cep->budget_callbackperiod; - cep->budget_callbackncalls_cnt = cep->budget_callbackncalls; - } - } - - if(cep->budget_calloutperiod && cep->budget_calloutncalls) - { - if(cep->budget_calloutperiod_time <= now) - { - DBGL(DL_BDGT, (llog(LL_DBG, "%s: new cout-budget-period (%d s, %d left)", - cep->name, cep->budget_calloutperiod, cep->budget_calloutncalls_cnt))); - cep->budget_calloutperiod_time = now + cep->budget_calloutperiod; - cep->budget_calloutncalls_cnt = cep->budget_calloutncalls; - } - } - - switch(cep->cdid) - { - case CDID_UNUSED: /* entry unused */ - continue; - break; - - case CDID_RESERVED: /* entry reserved */ - handle_reserved(cep, now); - break; - - default: /* entry in use */ - handle_active(cep, now); - break; - } - } -} - -/*---------------------------------------------------------------------------* - * timeout, recovery and retry handling for active entry - *---------------------------------------------------------------------------*/ -static void -handle_active(cfg_entry_t *cep, time_t now) -{ - switch(cep->state) - { - case ST_ACCEPTED: - if(cep->timerval && (--(cep->timerremain)) <= 0) - { - DBGL(DL_RCVRY, (llog(LL_DBG, "handle_active: entry %s, TIMEOUT !!!", cep->name))); - cep->timerval = cep->timerremain = 0; - next_state(cep, EV_TIMO); - } - break; - - case ST_ALERT: - if(cep->alert_time > 0) - { - cep->alert_time--; - } - else - { - llog(LL_CHD, "%05d %s answering: incoming call from %s to %s", - cep->cdid, cep->name, - cep->real_phone_incoming.number, - cep->local_phone_incoming.number); - next_state(cep, EV_MCI); - } - break; - - case ST_ILL: - recover_illegal(cep); - break; - - default: - /* check hangup flag: if active, close connection */ - - if(cep->hangup) - { - DBGL(DL_RCVRY, (llog(LL_DBG, "handle_active: entry %s, hangup request!", cep->name))); - cep->hangup = 0; - next_state(cep, EV_DRQ); - } - - /* check maximum connect time reached */ - - if(cep->maxconnecttime > 0 && cep->connect_time > 0) - { - int connecttime = (int)difftime(now, cep->connect_time); - if(connecttime > cep->maxconnecttime) - { - DBGL(DL_RCVRY, (llog(LL_DBG, - "handle_active: entry %s, maxconnecttime %d reached!", - cep->name, cep->maxconnecttime))); - next_state(cep, EV_DRQ); - } - } - - /* - * if shorthold mode is rates based, check if - * we entered a time with a new unit length - */ - - if(cep->unitlengthsrc == ULSRC_RATE) - { - int connecttime = (int)difftime(now, cep->connect_time); - - if((connecttime > 1) && - (connecttime % 60)) - { - int newrate = get_current_rate(cep, 0); - - if(newrate != cep->unitlength) - { - DBGL(DL_MSG, (llog(LL_DBG, "handle_active: rates unit length updated %d -> %d", cep->unitlength, newrate))); - - cep->unitlength = newrate; - - unitlen_chkupd(cep); - } - } - } - break; - } -} - -/*---------------------------------------------------------------------------* - * timeout, recovery and retry handling for reserved entry - *---------------------------------------------------------------------------*/ -static void -handle_reserved(cfg_entry_t *cep, time_t now) -{ - time_t waittime; - - switch(cep->state) - { - case ST_DIALRTMRCHD: /* wait for dial retry time reached */ - - if(cep->dialrandincr) - waittime = cep->randomtime; - else - waittime = cep->recoverytime; - - - if(now > (cep->last_dial_time + waittime)) - { - DBGL(DL_RCVRY, (llog(LL_DBG, "handle_reserved: entry %s, dial retry request!", cep->name))); - cep->state = ST_DIALRETRY; - - if((cep->cdid = get_cdid()) == 0) - { - llog(LL_ERR, "handle_reserved: dialretry get_cdid() returned 0!"); - cep->state = ST_IDLE; - cep->cdid = CDID_UNUSED; - return; - } - - if((setup_dialout(cep)) == GOOD) - { - sendm_connect_req(cep); - } - else - { - llog(LL_ERR, "handle_reserved: dialretry setup_dialout returned ERROR!"); - cep->state = ST_IDLE; - cep->cdid = CDID_UNUSED; - return; - } - } - break; - - - case ST_ACB_WAITDIAL: /* active callback wait for time between disconnect and dial */ - - if(now > (cep->last_release_time + cep->callbackwait)) - { - DBGL(DL_RCVRY, (llog(LL_DBG, "handle_reserved: entry %s, callback dial!", cep->name))); - cep->state = ST_ACB_DIAL; - - if((cep->cdid = get_cdid()) == 0) - { - llog(LL_ERR, "handle_reserved: callback get_cdid() returned 0!"); - cep->state = ST_IDLE; - cep->cdid = CDID_UNUSED; - return; - } - - select_first_dialno(cep); - - if((setup_dialout(cep)) == GOOD) - { - sendm_connect_req(cep); - } - else - { - llog(LL_ERR, "handle_reserved: callback setup_dialout returned ERROR!"); - cep->state = ST_IDLE; - cep->cdid = CDID_UNUSED; - return; - } - } - break; - - case ST_ACB_DIALFAIL: /* callback to remote failed */ - - if(cep->dialrandincr) - waittime = cep->randomtime + cep->recoverytime; - else - waittime = cep->recoverytime; - - if(now > (cep->last_release_time + waittime)) - { - DBGL(DL_RCVRY, (llog(LL_DBG, "handle_reserved: entry %s, callback dial retry request!", cep->name))); - cep->state = ST_ACB_DIAL; - - if((cep->cdid = get_cdid()) == 0) - { - llog(LL_ERR, "handle_reserved: callback dialretry get_cdid() returned 0!"); - cep->state = ST_IDLE; - cep->cdid = CDID_UNUSED; - return; - } - - if((setup_dialout(cep)) == GOOD) - { - sendm_connect_req(cep); - } - else - { - llog(LL_ERR, "handle_reserved: callback dialretry setup_dialout returned ERROR!"); - cep->state = ST_IDLE; - cep->cdid = CDID_UNUSED; - return; - } - } - break; - - case ST_PCB_WAITCALL: /* wait for remote calling back */ - - if(now > (cep->last_release_time + cep->calledbackwait)) - { - cep->dial_count++; - - if(cep->dial_count < cep->dialretries) - { - /* inside normal retry cycle */ - - DBGL(DL_RCVRY, (llog(LL_DBG, "handle_reserved: entry %s, retry calledback dial #%d!", - cep->name, cep->dial_count))); - cep->state = ST_PCB_DIAL; - - if((cep->cdid = get_cdid()) == 0) - { - llog(LL_ERR, "handle_reserved: calledback get_cdid() returned 0!"); - cep->state = ST_IDLE; - cep->cdid = CDID_UNUSED; - return; - } - select_next_dialno(cep); - - if((setup_dialout(cep)) == GOOD) - { - sendm_connect_req(cep); - } - else - { - llog(LL_ERR, "handle_reserved: calledback setup_dialout returned ERROR!"); - cep->state = ST_IDLE; - cep->cdid = CDID_UNUSED; - return; - } - } - else - { - /* retries exhausted */ - - DBGL(DL_RCVRY, (llog(LL_DBG, "handle_reserved: calledback dial retries exhausted"))); - dialresponse(cep, DSTAT_TFAIL); - cep->cdid = CDID_UNUSED; - cep->dial_count = 0; - cep->state = ST_IDLE; - } - } - break; - - case ST_DOWN: /* interface was taken down */ - - if(now > (cep->went_down_time + cep->downtime)) - { - DBGL(DL_RCVRY, (llog(LL_DBG, "handle_reserved: taking %s%d up", bdrivername(cep->usrdevicename), cep->usrdeviceunit))); - if_up(cep); - cep->state = ST_IDLE; - cep->cdid = CDID_UNUSED; - } - break; - - case ST_ILL: /* illegal state reached, recover ! */ - - recover_illegal(cep); - break; - } -} - -/* EOF */ |
