diff options
Diffstat (limited to 'usr.sbin/i4b/isdnd/fsm.c')
| -rw-r--r-- | usr.sbin/i4b/isdnd/fsm.c | 446 |
1 files changed, 0 insertions, 446 deletions
diff --git a/usr.sbin/i4b/isdnd/fsm.c b/usr.sbin/i4b/isdnd/fsm.c deleted file mode 100644 index b87b17e1c113..000000000000 --- a/usr.sbin/i4b/isdnd/fsm.c +++ /dev/null @@ -1,446 +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. - * - *--------------------------------------------------------------------------- - * - * FSM for isdnd - * ------------- - * - * $FreeBSD$ - * - * last edit-date: [Sat May 13 13:06:40 2006] - * - *---------------------------------------------------------------------------*/ - -#include "isdnd.h" - -/* table of state descriptions */ - -static char *state_text[N_STATES] = { - "idle", - "dialing", - "waitdialretry", - "dialretry", - - "pcb-dialing", - "pcb-dialfail", - "pcb-waitcall", - - "acb-waitdisc", - "acb-waitdial", - "acb-dialing", - "acb-dialfail", - - "accepted", - "connected", - "waitdisconnect", - "down", - "alert", - - "Illegal State" -}; - -/* table of event descriptions */ - -static char *event_text[N_EVENTS] = { - - /* incoming messages */ - - "msg-con-ind", - "msg-con-act-ind", - "msg-disc-ind", - "msg-dialout", - - /* local events */ - - "timeout", - "disconnect-req", - "callback-req", - "alert-req", - - /* illegal */ - - "Illegal Event" -}; - -/*---------------------------------------------------------------------------* - * illegal state default action - *---------------------------------------------------------------------------*/ -static void -F_ill(cfg_entry_t *cep) -{ - DBGL(DL_STATE, (llog(LL_DBG, "F_ill: Illegal State reached !!!"))); -} - -/*---------------------------------------------------------------------------* - * No change, No action - *---------------------------------------------------------------------------*/ -static void -F_NcNa(cfg_entry_t *cep) -{ -} - -/*---------------------------------------------------------------------------* - * incoming CONNECT, accepting call - *---------------------------------------------------------------------------*/ -static void -F_MCI(cfg_entry_t *cep) -{ - DBGL(DL_STATE, (llog(LL_DBG, "F_MCI: tx SETUP_RESP_ACCEPT"))); - sendm_connect_resp(cep, cep->cdid, SETUP_RESP_ACCEPT, 0); - start_timer(cep, TIMEOUT_CONNECT_ACTIVE); -} - -/*---------------------------------------------------------------------------* - * incoming connect active, call is now active - *---------------------------------------------------------------------------*/ -static void -F_MCAI(cfg_entry_t *cep) -{ - DBGL(DL_STATE, (llog(LL_DBG, "F_MCAI: Connection active!"))); - - stop_timer(cep); - - if((cep->dialin_reaction == REACT_ANSWER) && - (cep->b1protocol == BPROT_NONE)) - { - exec_answer(cep); - } -} - -/*---------------------------------------------------------------------------* - * timeout - *---------------------------------------------------------------------------*/ -static void -F_TIMO(cfg_entry_t *cep) -{ - DBGL(DL_STATE, (llog(LL_DBG, "F_TIMO: Timout occured!"))); - sendm_disconnect_req(cep, (CAUSET_I4B << 8) | CAUSE_I4B_NORMAL); - cep->cdid = CDID_UNUSED; -} - -/*---------------------------------------------------------------------------* - * incoming disconnect indication - *---------------------------------------------------------------------------*/ -static void -F_IDIS(cfg_entry_t *cep) -{ - DBGL(DL_STATE, (llog(LL_DBG, "F_IDIS: disconnect indication"))); - cep->cdid = CDID_UNUSED; -} - -/*---------------------------------------------------------------------------* - * local disconnect request - *---------------------------------------------------------------------------*/ -static void -F_DRQ(cfg_entry_t *cep) -{ - DBGL(DL_STATE, (llog(LL_DBG, "F_DRQ: local disconnect request"))); - sendm_disconnect_req(cep, (CAUSET_I4B << 8) | CAUSE_I4B_NORMAL); -} - -/*---------------------------------------------------------------------------* - * disconnect indication after local disconnect req - *---------------------------------------------------------------------------*/ -static void -F_MDI(cfg_entry_t *cep) -{ - DBGL(DL_STATE, (llog(LL_DBG, "F_MDI: disconnect indication, local disconnected"))); - cep->cdid = CDID_UNUSED; -} - -/*---------------------------------------------------------------------------* - * local requested outgoing dial - *---------------------------------------------------------------------------*/ -static void -F_DIAL(cfg_entry_t *cep) -{ - DBGL(DL_STATE, (llog(LL_DBG, "F_DIAL: local dial out request"))); - - if(cep->dialrandincr) - cep->randomtime = (random() & RANDOM_MASK) + cep->recoverytime; - - cep->dial_count = 0; - - select_first_dialno(cep); - - sendm_connect_req(cep); -} - -/*---------------------------------------------------------------------------* - * outgoing dial successfull - *---------------------------------------------------------------------------*/ -static void -F_DOK(cfg_entry_t *cep) -{ - DBGL(DL_STATE, (llog(LL_DBG, "F_DOK: dial out ok"))); - select_this_dialno(cep); -} - -/*---------------------------------------------------------------------------* - * outgoing dial fail (ST_SUSE !!!) - *---------------------------------------------------------------------------*/ -static void -F_DFL(cfg_entry_t *cep) -{ - cep->last_release_time = time(NULL); - - if(cep->dialouttype == DIALOUT_NORMAL) - { - cep->dial_count++; - - if(cep->dial_count < cep->dialretries || cep->dialretries == -1) - { - /* inside normal retry cycle */ - - DBGL(DL_STATE, (llog(LL_DBG, "F_DFL: dial fail, dial retry"))); - select_next_dialno(cep); - cep->cdid = CDID_RESERVED; - cep->state = ST_DIALRTMRCHD; - return; - } - - /* retries exhausted */ - - if(!cep->usedown) - { - DBGL(DL_STATE, (llog(LL_DBG, "F_DFL: dial retry fail, dial retries exhausted"))); - dialresponse(cep, DSTAT_TFAIL); - cep->cdid = CDID_UNUSED; - cep->dial_count = 0; - cep->state = ST_IDLE; - return; - } - - /* interface up/down active */ - - cep->down_retry_count++; - - if(cep->down_retry_count > cep->downtries) - { - /* set interface down */ - DBGL(DL_STATE, (llog(LL_DBG, "F_DFL: dial retry cycle fail, setting interface down!"))); - dialresponse(cep, DSTAT_PFAIL); - if_down(cep); - cep->state = ST_DOWN; - } - else - { - /* enter new dial retry cycle */ - DBGL(DL_STATE, (llog(LL_DBG, "F_DFL: dial retry cycle fail, enter new retry cycle!"))); - select_next_dialno(cep); - cep->state = ST_DIALRTMRCHD; - } - - cep->dial_count = 0; - cep->cdid = CDID_RESERVED; - } - else /* cdp->dialouttype == DIALOUT_CALLEDBACK */ - { - DBGL(DL_STATE, (llog(LL_DBG, "F_DFL: calledback dial done, wait for incoming call"))); - cep->cdid = CDID_RESERVED; - cep->state = ST_PCB_WAITCALL; - } -} - -/*---------------------------------------------------------------------------* - * local requested outgoing dial - *---------------------------------------------------------------------------*/ -static void -F_ACBW(cfg_entry_t *cep) -{ - DBGL(DL_STATE, (llog(LL_DBG, "F_ACBW: local callback, wait callback recovery time"))); - - if(cep->dialrandincr) - cep->randomtime = (random() & RANDOM_MASK) + cep->recoverytime; - - cep->dial_count = 0; - - cep->cdid = CDID_RESERVED; -} - -/*---------------------------------------------------------------------------* - * active callback dialout retry (ST_SUSE !!!) - *---------------------------------------------------------------------------*/ -static void -F_ACBR(cfg_entry_t *cep) -{ - cep->dial_count++; - - if(cep->dial_count < cep->dialretries || cep->dialretries == -1) - { - /* inside normal retry cycle */ - - DBGL(DL_STATE, (llog(LL_DBG, "F_ACBR: dial fail, dial retry"))); - select_next_dialno(cep); - cep->cdid = CDID_RESERVED; - cep->state = ST_ACB_DIALFAIL; - return; - } - - /* retries exhausted */ - - if(!cep->usedown) - { - DBGL(DL_STATE, (llog(LL_DBG, "F_ACBR: dial retry fail, dial retries exhausted"))); - dialresponse(cep, DSTAT_TFAIL); - cep->cdid = CDID_UNUSED; - cep->dial_count = 0; - cep->state = ST_IDLE; - return; - } - - /* interface up/down active */ - - cep->down_retry_count++; - - if(cep->down_retry_count > cep->downtries) - { - /* set interface down */ - DBGL(DL_STATE, (llog(LL_DBG, "F_ACBR: dial retry cycle fail, setting interface down!"))); - dialresponse(cep, DSTAT_PFAIL); - if_down(cep); - cep->state = ST_DOWN; - } - else - { - /* enter new dial retry cycle */ - DBGL(DL_STATE, (llog(LL_DBG, "F_ACBR: dial retry cycle fail, enter new retry cycle!"))); - select_next_dialno(cep); - cep->state = ST_ACB_DIALFAIL; - } - - cep->dial_count = 0; - cep->cdid = CDID_RESERVED; -} - -/*---------------------------------------------------------------------------* - * local requested to send ALERT message - *---------------------------------------------------------------------------*/ -static void -F_ALRT(cfg_entry_t *cep) -{ - DBGL(DL_STATE, (llog(LL_DBG, "F_ALRT: local send alert request"))); - - cep->alert_time = cep->alert; - - sendm_alert_req(cep); -} - -/*---------------------------------------------------------------------------* - * isdn daemon state transition table - *---------------------------------------------------------------------------*/ -struct state_tab { - void(*func)(cfg_entry_t *cep); /* function to execute */ - int newstate; /* next state */ -} state_tab[N_EVENTS][N_STATES] = { - -/* STATE: ST_IDLE ST_DIAL ST_DIALRTMRCHD ST_DIALRETRY ST_PCB_DIAL ST_PCB_DIALFAIL ST_PCB_WAITCALL ST_ACB_WAITDISC ST_ACB_WAITDIAL ST_ACB_DIAL ST_ACB_DIALFAIL ST_ACCEPTED ST_CONNECTED ST_WAITDISCI ST_DOWN ST_ALERT ST_ILLEGAL */ -/* -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/ -/* messages */ -/* EV_MCI */{{F_MCI, ST_ACCEPTED}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_MCI, ST_ACCEPTED}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_MCI, ST_ACCEPTED}, {F_ill, ST_ILL}}, -/* EV_MCAI */{{F_ill, ST_ILL}, {F_DOK, ST_CONNECTED}, {F_ill, ST_ILL}, {F_DOK, ST_CONNECTED}, {F_DOK, ST_CONNECTED}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_DOK, ST_CONNECTED}, {F_ill, ST_ILL}, {F_MCAI,ST_CONNECTED}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}}, -/* EV_MDI */{{F_ill, ST_ILL}, {F_DFL, ST_SUSE}, {F_ill, ST_ILL}, {F_DFL, ST_SUSE}, {F_DFL, ST_SUSE}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ACBW,ST_ACB_WAITDIAL},{F_ill, ST_ILL}, {F_ACBR, ST_SUSE}, {F_ACBR,ST_SUSE}, {F_IDIS,ST_IDLE}, {F_IDIS,ST_IDLE}, {F_MDI, ST_IDLE}, {F_ill, ST_ILL}, {F_MDI, ST_IDLE}, {F_ill, ST_ILL}}, -/* EV_MDO */{{F_DIAL,ST_DIAL}, {F_NcNa,ST_DIAL}, {F_NcNa,ST_DIALRTMRCHD},{F_NcNa,ST_DIALRETRY}, {F_NcNa,ST_PCB_DIAL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}}, - -/* local requests */ -/* EV_TIMO */{{F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_TIMO,ST_IDLE}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}}, -/* EV_DRQ */{{F_NcNa, ST_IDLE}, {F_DRQ, ST_WAITDISCI}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_DRQ, ST_WAITDISCI}, {F_NcNa,ST_WAITDISCI}, {F_NcNa, ST_DOWN}, {F_ill, ST_ILL}, {F_ill, ST_ILL}}, -/* EV_CBRQ */{{F_NcNa,ST_ACB_WAITDIAL},{F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_NcNa,ST_ACB_WAITDIAL},{F_NcNa, ST_ACB_DIAL}, {F_NcNa,ST_ACB_DIALFAIL},{F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}}, -/* EV_ALRT */{{F_ALRT,ST_ALERT}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}}, - -/* illegal */ - -/* EV_ILL */{{F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}, {F_ill, ST_ILL}} -}; - -/*---------------------------------------------------------------------------* - * event handler - *---------------------------------------------------------------------------*/ -void -next_state(cfg_entry_t *cep, int event) -{ - int currstate, newstate; - - if(event > N_EVENTS) - { - llog(LL_ERR, "next_state: event > N_EVENTS"); - error_exit(1, "next_state: event > N_EVENTS"); - } - - currstate = cep->state; - - if(currstate > N_STATES) - { - llog(LL_ERR, "next_state: currstate > N_STATES"); - error_exit(1, "next_state: currstate > N_STATES"); - } - - newstate = state_tab[event][currstate].newstate; - - if(newstate > N_STATES) - { - llog(LL_ERR, "next_state: newstate > N_STATES"); - error_exit(1, "next_state: newstate > N_STATES"); - } - - if(newstate != ST_SUSE) - { - DBGL(DL_STATE, (llog(LL_DBG, "FSM event [%s]: [%s => %s]", event_text[event], - state_text[currstate], - state_text[newstate]))); - } - - (*state_tab[event][currstate].func)(cep); - - if(newstate == ST_ILL) - { - llog(LL_ERR, "FSM ILLEGAL STATE, event=%s: oldstate=%s => newstate=%s]", - event_text[event], - state_text[currstate], - state_text[newstate]); - } - - if(newstate == ST_SUSE) - { - DBGL(DL_STATE, (llog(LL_DBG, "FSM (SUSE) event [%s]: [%s => %s]", event_text[event], - state_text[currstate], - state_text[cep->state]))); - } - else - { - cep->state = newstate; - } -} - -/*---------------------------------------------------------------------------* - * return pointer to current state description - *---------------------------------------------------------------------------*/ -char * -printstate(cfg_entry_t *cep) -{ - return((char *) state_text[cep->state]); -} - -/* EOF */ |