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NetBSD/usr.sbin/isdn/isdnd/support.c

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/*
* Copyright (c) 1997, 2000 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 - misc support routines
* ----------------------------------
*
* $Id: support.c,v 1.8 2002/06/01 23:51:05 lukem Exp $
*
* $FreeBSD$
*
* last edit-date: [Wed Oct 4 18:24:27 2000]
*
*---------------------------------------------------------------------------*/
#include "isdnd.h"
static int isvalidtime(struct cfg_entry *cep);
static SLIST_HEAD(, isdn_ctrl_state) isdn_ctrl_list =
SLIST_HEAD_INITIALIZER(isdn_ctrl_list);
static SIMPLEQ_HEAD(, cfg_entry) cfg_entry_list =
SIMPLEQ_HEAD_INITIALIZER(cfg_entry_list);
/*---------------------------------------------------------------------------*
* find an active entry by driver type and driver unit
*---------------------------------------------------------------------------*/
struct cfg_entry *
find_active_entry_by_driver(int drivertype, int driverunit)
{
struct cfg_entry *cep = NULL;
int i;
SIMPLEQ_FOREACH(cep, &cfg_entry_list, cfgq) {
if(!((cep->usrdevice == drivertype) &&
(cep->usrdeviceunit == driverunit)))
{
continue;
}
/* check time interval */
if(isvalidtime(cep) == 0)
{
DBGL(DL_MSG, (log(LL_DBG, "find_active_entry_by_driver: entry %d, time not valid!", i)));
continue;
}
/* found */
if(cep->cdid == CDID_UNUSED)
{
DBGL(DL_MSG, (log(LL_DBG, "find_active_entry_by_driver: entry %d [%s%d], cdid=CDID_UNUSED !",
cep->index, cep->usrdevicename, driverunit)));
return(NULL);
}
else if(cep->cdid == CDID_RESERVED)
{
DBGL(DL_MSG, (log(LL_DBG, "find_active_entry_by_driver: entry %d [%s%d], cdid=CDID_RESERVED!",
cep->index, cep->usrdevicename, driverunit)));
return(NULL);
}
return(cep);
}
return(NULL);
}
/*---------------------------------------------------------------------------*
* find entry by drivertype and driverunit and setup for dialing out
*---------------------------------------------------------------------------*/
struct cfg_entry *
find_by_device_for_dialout(int drivertype, int driverunit)
{
struct cfg_entry *cep;
SIMPLEQ_FOREACH(cep, &cfg_entry_list, cfgq) {
/* compare driver type and unit */
if(!((cep->usrdevice == drivertype) &&
(cep->usrdeviceunit == driverunit)))
{
continue;
}
/* check time interval */
if(isvalidtime(cep) == 0)
{
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialout: entry %d, time not valid!", cep->index)));
continue;
}
/* found, check if already reserved */
if(cep->cdid == CDID_RESERVED)
{
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialout: entry %d, cdid reserved!", cep->index)));
return(NULL);
}
/* check if this entry is already in use ? */
if(cep->cdid != CDID_UNUSED)
{
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialout: entry %d, cdid in use", cep->index)));
return(NULL);
}
if((setup_dialout(cep)) == GOOD)
{
/* found an entry to be used for calling out */
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialout: found entry %d!", cep->index)));
return(cep);
}
else
{
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialout: entry %d, setup_dialout() failed!", cep->index)));
return(NULL);
}
}
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialout: no entry found!")));
return(NULL);
}
/*---------------------------------------------------------------------------*
* find entry by drivertype and driverunit and setup for dialing out
*---------------------------------------------------------------------------*/
struct cfg_entry *
find_by_device_for_dialoutnumber(int drivertype, int driverunit, int cmdlen, char *cmd)
{
struct cfg_entry *cep;
int j;
SIMPLEQ_FOREACH(cep, &cfg_entry_list, cfgq) {
/* compare driver type and unit */
if(!((cep->usrdevice == drivertype) &&
(cep->usrdeviceunit == driverunit)))
{
continue;
}
/* check time interval */
if(isvalidtime(cep) == 0)
{
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialoutnumber: entry %d, time not valid!", cep->index)));
continue;
}
/* found, check if already reserved */
if(cep->cdid == CDID_RESERVED)
{
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialoutnumber: entry %d, cdid reserved!", cep->index)));
return(NULL);
}
/* check if this entry is already in use ? */
if(cep->cdid != CDID_UNUSED)
{
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialoutnumber: entry %d, cdid in use", cep->index)));
return(NULL);
}
/* check number and copy to cep->remote_numbers[] */
for(j = 0; j < cmdlen; j++)
{
if(!(isdigit(*(cmd+j))))
{
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialoutnumber: entry %d, dial string contains non-digit at pos %d", cep->index, j)));
return(NULL);
}
/* fill in number to dial */
cep->remote_numbers[0].number[j] = *(cmd+j);
}
cep->remote_numbers[0].number[j] = '\0';
cep->remote_numbers_count = 1;
if((setup_dialout(cep)) == GOOD)
{
/* found an entry to be used for calling out */
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialoutnumber: found entry %d!", cep->index)));
return(cep);
}
else
{
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialoutnumber: entry %d, setup_dialout() failed!", cep->index)));
return(NULL);
}
}
DBGL(DL_MSG, (log(LL_DBG, "find_by_device_for_dialoutnumber: no entry found!")));
return(NULL);
}
/*---------------------------------------------------------------------------*
* find entry by drivertype and driverunit and setup for dialing out
*---------------------------------------------------------------------------*/
int
setup_dialout(struct cfg_entry *cep)
{
struct isdn_ctrl_state *ctrl;
if (cep->isdncontroller < 0) {
/* we are free to choose a controller */
for (ctrl = get_first_ctrl_state(); ctrl; ctrl = NEXT_CTRL(ctrl)) {
if (get_controller_state(ctrl) != CTRL_UP)
continue;
switch(cep->isdnchannel) {
case CHAN_B1:
case CHAN_B2:
if (ret_channel_state(ctrl, cep->isdnchannel) != CHAN_IDLE)
continue;
break;
case CHAN_ANY:
if (ret_channel_state(ctrl, CHAN_B1) != CHAN_IDLE &&
ret_channel_state(ctrl, CHAN_B2) != CHAN_IDLE)
continue;
break;
}
/* this controller looks ok */
break;
}
} else {
/* fixed controller in config, use that */
ctrl = find_ctrl_state(cep->isdncontroller);
}
if (ctrl == NULL)
return (ERROR);
/* check controller operational */
if (get_controller_state(ctrl) != CTRL_UP)
{
DBGL(DL_MSG, (log(LL_DBG, "setup_dialout: entry %s, controller is down", cep->name)));
return(ERROR);
}
cep->isdncontrollerused = ctrl->bri;
/* check channel available */
switch(cep->isdnchannel)
{
case CHAN_B1:
case CHAN_B2:
if (ret_channel_state(ctrl, cep->isdnchannel) != CHAN_IDLE)
{
DBGL(DL_MSG, (log(LL_DBG, "setup_dialout: entry %s, channel not free", cep->name)));
return(ERROR);
}
cep->isdnchannelused = cep->isdnchannel;
break;
case CHAN_ANY:
if (ret_channel_state(ctrl, CHAN_B1) != CHAN_IDLE &&
ret_channel_state(ctrl, CHAN_B2) != CHAN_IDLE)
{
DBGL(DL_MSG, (log(LL_DBG, "setup_dialout: entry %s, no channel free", cep->name)));
return(ERROR);
}
cep->isdnchannelused = CHAN_ANY;
break;
default:
DBGL(DL_MSG, (log(LL_DBG, "setup_dialout: entry %s, channel undefined", cep->name)));
return(ERROR);
break;
}
DBGL(DL_MSG, (log(LL_DBG, "setup_dialout: entry %s ok!", cep->name)));
/* preset disconnect cause */
SET_CAUSE_TYPE(cep->disc_cause, CAUSET_I4B);
SET_CAUSE_VAL(cep->disc_cause, CAUSE_I4B_NORMAL);
return(GOOD);
}
/*---------------------------------------------------------------------------*
* find entry by drivertype and driverunit
*---------------------------------------------------------------------------*/
struct cfg_entry *
get_cep_by_driver(int drivertype, int driverunit)
{
struct cfg_entry *cep;
SIMPLEQ_FOREACH(cep, &cfg_entry_list, cfgq) {
if(!((cep->usrdevice == drivertype) &&
(cep->usrdeviceunit == driverunit)))
{
continue;
}
/* check time interval */
if(isvalidtime(cep) == 0)
{
DBGL(DL_MSG, (log(LL_DBG, "get_cep_by_driver: entry %d, time not valid!", cep->index)));
continue;
}
DBGL(DL_MSG, (log(LL_DBG, "get_cep_by_driver: found entry %d!", cep->index)));
return(cep);
}
return(NULL);
}
/*---------------------------------------------------------------------------*
* find a matching entry for an incoming call
*
* - not found/no match: log output with LL_CHD and return NULL
* - found/match: make entry in free cep, return address
*---------------------------------------------------------------------------*/
struct cfg_entry *
find_matching_entry_incoming(msg_connect_ind_t *mp, int len)
{
struct cfg_entry *cep = NULL;
static const char resvd_type[] = "reserverd";
static const char no_type[] = "no type";
static const char * const numbering_types[] = {
"unknown",
"international",
"national",
"network specific",
"subscriber",
"abbreviated",
resvd_type,
resvd_type,
resvd_type
};
const char * ntype;
/* older kernels do not deliver all the information */
if (((u_int8_t*)&mp->type_plan - (u_int8_t*)mp + sizeof(mp->type_plan)) <= len) {
ntype = numbering_types[(mp->type_plan & 0x70)>>4];
} else {
ntype = no_type;
}
/* check for CW (call waiting) early */
if(mp->channel == CHAN_NO)
{
if(aliasing)
{
char *src_tela = "ERROR-src_tela";
char *dst_tela = "ERROR-dst_tela";
src_tela = get_alias(mp->src_telno);
dst_tela = get_alias(mp->dst_telno);
log(LL_CHD, "%05d <unknown> CW from %s (%s) to %s (%s) (no channel free)",
mp->header.cdid, src_tela, ntype, dst_tela, mp->display);
}
else
{
log(LL_CHD, "%05d <unknown> call waiting from %s (%s) to %s (%s) (no channel free)",
mp->header.cdid, mp->src_telno, ntype, mp->dst_telno, mp->display);
}
return(NULL);
}
SIMPLEQ_FOREACH(cep, &cfg_entry_list, cfgq) {
int n;
struct isdn_ctrl_state *ctrl;
/* check my number */
if(strncmp(cep->local_phone_incoming, mp->dst_telno, strlen(cep->local_phone_incoming)))
{
DBGL(DL_MSG, (log(LL_DBG, "find_matching_entry_incoming: entry %d, myno %s != incomingno %s",
cep->index, cep->local_phone_incoming, mp->dst_telno)));
continue;
}
/* check all allowed remote number's for this entry */
for (n = 0; n < cep->incoming_numbers_count; n++)
{
incoming_number_t *in = &cep->remote_phone_incoming[n];
if(in->number[0] == '*')
break;
if(strncmp(in->number, mp->src_telno, strlen(in->number)))
{
DBGL(DL_MSG, (log(LL_DBG, "find_matching_entry_incoming: entry %d, remno %s != incomingfromno %s",
cep->index, in->number, mp->src_telno)));
}
else
break;
}
if (n >= cep->incoming_numbers_count)
continue;
/* check b protocol */
if(cep->b1protocol != mp->bprot)
{
DBGL(DL_MSG, (log(LL_DBG, "find_matching_entry_incoming: entry %d, bprot %d != incomingprot %d",
cep->index, cep->b1protocol, mp->bprot)));
continue;
}
/* is this entry currently in use ? */
if(cep->cdid != CDID_UNUSED)
{
if(cep->cdid == CDID_RESERVED)
{
DBGL(DL_MSG, (log(LL_DBG, "find_matching_entry_incoming: entry %d, cdid is reserved", cep->index)));
}
else if (cep->dialin_reaction == REACT_ACCEPT
&& cep->dialouttype == DIALOUT_CALLEDBACK)
{
/*
* We might consider doing this even if this is
* not a calledback config entry - BUT: there are
* severe race conditions and timinig problems
* ex. if both sides run I4B with no callback
* delay - both may shutdown the outgoing call
* and never be able to establish a connection.
* In the called-back case this should not happen.
*/
DBGL(DL_MSG, (log(LL_DBG, "find_matching_entry_incoming: entry %d, incoming call for callback in progress (cdid %05d)", cep->index, cep->cdid)));
/* save the current call state, we're going to overwrite it with the
* new incoming state below... */
cep->saved_call.cdid = cep->cdid;
cep->saved_call.controller = cep->isdncontrollerused;
cep->saved_call.channel = cep->isdnchannelused;
}
else
{
DBGL(DL_MSG, (log(LL_DBG, "find_matching_entry_incoming: entry %d, cdid in use", cep->index)));
continue; /* yes, next */
}
}
/* check controller value ok */
ctrl = find_ctrl_state(mp->controller);
if (ctrl == NULL)
{
log(LL_CHD, "%05d %s incoming call with invalid controller %d",
mp->header.cdid, cep->name, mp->controller);
return(NULL);
}
/* check controller marked up */
if (get_controller_state(ctrl) != CTRL_UP)
{
log(LL_CHD, "%05d %s incoming call, controller %d DOWN!",
mp->header.cdid, cep->name, mp->controller);
return(NULL);
}
/* check channel he wants */
switch(mp->channel)
{
case CHAN_B1:
case CHAN_B2:
if ((ret_channel_state(ctrl, mp->channel)) != CHAN_IDLE)
{
log(LL_CHD, "%05d %s incoming call, channel %s not free!",
mp->header.cdid, cep->name, mp->channel == CHAN_B1 ? "B1" : "B2");
return(NULL);
}
break;
case CHAN_ANY:
if (ret_channel_state(ctrl, CHAN_B1) != CHAN_IDLE &&
ret_channel_state(ctrl, CHAN_B2) != CHAN_IDLE)
{
log(LL_CHD, "%05d %s incoming call, no channel free!",
mp->header.cdid, cep->name);
return(NULL);
}
break;
case CHAN_NO:
log(LL_CHD, "%05d %s incoming call, call waiting (no channel available)!",
mp->header.cdid, cep->name);
return(NULL);
break;
default:
log(LL_CHD, "%05d %s incoming call, ERROR, channel undefined!",
mp->header.cdid, cep->name);
return(NULL);
break;
}
/* check time interval */
if(isvalidtime(cep) == 0)
{
DBGL(DL_MSG, (log(LL_DBG, "find_matching_entry_incoming: entry %d, time not valid!", cep->index)));
continue;
}
/* found a matching entry */
cep->cdid = mp->header.cdid;
cep->isdncontrollerused = mp->controller;
cep->isdnchannelused = mp->channel;
/*XXX*/ cep->disc_cause = 0;
/* cp number to real one used */
strcpy(cep->real_phone_incoming, mp->src_telno);
/* copy display string */
strcpy(cep->display, mp->display);
/* entry currently down ? */
if(cep->state == ST_DOWN)
{
msg_updown_ind_t mui;
/* set interface up */
DBGL(DL_MSG, (log(LL_DBG, "find_matching_entry_incoming: entry %d, ", cep->index)));
mui.driver = cep->usrdevice;
mui.driver_unit = cep->usrdeviceunit;
mui.updown = SOFT_ENA;
if((ioctl(isdnfd, I4B_UPDOWN_IND, &mui)) < 0)
{
log(LL_ERR, "find_matching_entry_incoming: ioctl I4B_UPDOWN_IND failed: %s", strerror(errno));
error_exit(1, "find_matching_entry_incoming: ioctl I4B_UPDOWN_IND failed: %s", strerror(errno));
}
cep->down_retry_count = 0;
cep->state = ST_IDLE;
}
return(cep);
}
if(aliasing)
{
char *src_tela = "ERROR-src_tela";
char *dst_tela = "ERROR-dst_tela";
src_tela = get_alias(mp->src_telno);
dst_tela = get_alias(mp->dst_telno);
log(LL_CHD, "%05d Call from %s (%s) to %s (%s)",
mp->header.cdid, src_tela, ntype, dst_tela, mp->display);
}
else
{
log(LL_CHD, "%05d <unknown> incoming call from %s (%s) to %s (%s)",
mp->header.cdid, mp->src_telno, ntype, mp->dst_telno, mp->display);
}
return(NULL);
}
/*---------------------------------------------------------------------------*
* return address of ACTIVE config entry by controller and channel
*---------------------------------------------------------------------------*/
struct cfg_entry *
get_cep_by_cc(int ctrlr, int chan)
{
struct cfg_entry *cep;
struct isdn_ctrl_state *cts;
if((chan != CHAN_B1) && (chan != CHAN_B2))
return(NULL);
cts = find_ctrl_state(ctrlr);
if (cts == NULL)
return(NULL);
SIMPLEQ_FOREACH(cep, &cfg_entry_list, cfgq) {
if((cep->cdid != CDID_UNUSED) &&
(cep->cdid != CDID_RESERVED) &&
(cep->isdnchannelused == chan) &&
(cep->isdncontrollerused == ctrlr) &&
((ret_channel_state(cts, chan)) == CHAN_RUN))
{
return (cep);
}
}
return(NULL);
}
/*---------------------------------------------------------------------------*
* return address of config entry identified by cdid
*---------------------------------------------------------------------------*/
struct cfg_entry *
get_cep_by_cdid(int cdid)
{
struct cfg_entry *cep;
SIMPLEQ_FOREACH(cep, &cfg_entry_list, cfgq) {
if (cep->cdid == cdid || cep->saved_call.cdid == cdid)
return(cep);
}
return(NULL);
}
/*---------------------------------------------------------------------------*
* process AOCD charging messages
*---------------------------------------------------------------------------*/
void
handle_charge(struct cfg_entry *cep)
{
time_t now = time(NULL);
if(cep->aoc_last == 0) /* no last timestamp yet ? */
{
cep->aoc_last = now; /* add time stamp */
}
else if(cep->aoc_now == 0) /* no current timestamp yet ? */
{
cep->aoc_now = now; /* current timestamp */
}
else
{
cep->aoc_last = cep->aoc_now;
cep->aoc_now = now;
cep->aoc_diff = cep->aoc_now - cep->aoc_last;
cep->aoc_valid = AOC_VALID;
}
#ifdef USE_CURSES
if(do_fullscreen)
display_charge(cep);
#endif
#ifdef I4B_EXTERNAL_MONITOR
if(do_monitor && accepted)
monitor_evnt_charge(cep, cep->charge, 0);
#endif
if(cep->aoc_valid == AOC_VALID)
{
if(cep->aoc_diff != cep->unitlength)
{
DBGL(DL_MSG, (log(LL_DBG, "handle_charge: AOCD unit length updated %d -> %d secs", cep->unitlength, cep->aoc_diff)));
cep->unitlength = cep->aoc_diff;
unitlen_chkupd(cep);
}
else
{
#ifdef NOTDEF
DBGL(DL_MSG, (log(LL_DBG, "handle_charge: AOCD unit length still %d secs", cep->unitlength)));
#endif
}
}
}
/*---------------------------------------------------------------------------*
* update kernel idle_time, earlyhup_time and unitlen_time
*---------------------------------------------------------------------------*/
void
unitlen_chkupd(struct cfg_entry *cep)
{
msg_timeout_upd_t tupd;
tupd.cdid = cep->cdid;
/* init the short hold data based on the shorthold algorithm type */
switch(cep->shorthold_algorithm)
{
case SHA_FIXU:
tupd.shorthold_data.shorthold_algorithm = SHA_FIXU;
tupd.shorthold_data.unitlen_time = cep->unitlength;
tupd.shorthold_data.idle_time = cep->idle_time_out;
tupd.shorthold_data.earlyhup_time = cep->earlyhangup;
break;
case SHA_VARU:
tupd.shorthold_data.shorthold_algorithm = SHA_VARU;
tupd.shorthold_data.unitlen_time = cep->unitlength;
tupd.shorthold_data.idle_time = cep->idle_time_out;
tupd.shorthold_data.earlyhup_time = 0;
break;
default:
log(LL_ERR, "unitlen_chkupd bad shorthold_algorithm %d", cep->shorthold_algorithm );
return;
break;
}
if((ioctl(isdnfd, I4B_TIMEOUT_UPD, &tupd)) < 0)
{
log(LL_ERR, "ioctl I4B_TIMEOUT_UPD failed: %s", strerror(errno));
error_exit(1, "ioctl I4B_TIMEOUT_UPD failed: %s", strerror(errno));
}
}
/*--------------------------------------------------------------------------*
* this is intended to be called by do_exit and closes down all
* active connections before the daemon exits or is reconfigured.
*--------------------------------------------------------------------------*/
void
close_allactive(void)
{
int j;
struct cfg_entry *cep = NULL;
struct isdn_ctrl_state *cst;
j = 0;
SLIST_FOREACH(cst, &isdn_ctrl_list, ctrlq) {
if((get_controller_state(cst)) != CTRL_UP)
continue;
if((ret_channel_state(cst, CHAN_B1)) == CHAN_RUN)
{
if((cep = get_cep_by_cc(cst->bri, CHAN_B1)) != NULL)
{
#ifdef USE_CURSES
if(do_fullscreen)
display_disconnect(cep);
#endif
#ifdef I4B_EXTERNAL_MONITOR
monitor_evnt_disconnect(cep);
#endif
next_state(cep, EV_DRQ);
j++;
}
}
if((ret_channel_state(cst, CHAN_B2)) == CHAN_RUN)
{
if((cep = get_cep_by_cc(cst->bri, CHAN_B2)) != NULL)
{
#ifdef USE_CURSES
if(do_fullscreen)
display_disconnect(cep);
#endif
#ifdef I4B_EXTERNAL_MONITOR
monitor_evnt_disconnect(cep);
#endif
next_state(cep, EV_DRQ);
j++;
}
}
}
if(j)
{
log(LL_DMN, "close_allactive: waiting for all connections terminated");
sleep(5);
}
SIMPLEQ_FOREACH(cep, &cfg_entry_list, cfgq) {
if (cep->autoupdown & AUTOUPDOWN_DONE) {
struct ifreq ifr;
int r, s;
s = socket(AF_INET, SOCK_DGRAM, 0);
memset(&ifr, 0, sizeof ifr);
snprintf(ifr.ifr_name, sizeof ifr.ifr_name, "%s%d", cep->usrdevicename, cep->usrdeviceunit);
r = ioctl(s, SIOCGIFFLAGS, &ifr);
if (r >= 0) {
ifr.ifr_flags &= ~IFF_UP;
ioctl(s, SIOCSIFFLAGS, &ifr);
}
close(s);
cep->autoupdown &= ~AUTOUPDOWN_DONE;
}
}
}
/*--------------------------------------------------------------------------*
* set an interface up
*--------------------------------------------------------------------------*/
void
if_up(struct cfg_entry *cep)
{
msg_updown_ind_t mui;
/* set interface up */
DBGL(DL_MSG, (log(LL_DBG, "if_up: taking %s%d up", cep->usrdevicename, cep->usrdeviceunit)));
mui.driver = cep->usrdevice;
mui.driver_unit = cep->usrdeviceunit;
mui.updown = SOFT_ENA;
if((ioctl(isdnfd, I4B_UPDOWN_IND, &mui)) < 0)
{
log(LL_ERR, "if_up: ioctl I4B_UPDOWN_IND failed: %s", strerror(errno));
error_exit(1, "if_up: ioctl I4B_UPDOWN_IND failed: %s", strerror(errno));
}
cep->down_retry_count = 0;
#ifdef USE_CURSES
if(do_fullscreen)
display_updown(cep, 1);
#endif
#ifdef I4B_EXTERNAL_MONITOR
monitor_evnt_updown(cep, 1);
#endif
}
/*--------------------------------------------------------------------------*
* set an interface down
*--------------------------------------------------------------------------*/
void
if_down(struct cfg_entry *cep)
{
msg_updown_ind_t mui;
/* set interface up */
DBGL(DL_MSG, (log(LL_DBG, "if_down: taking %s%d down", cep->usrdevicename, cep->usrdeviceunit)));
mui.driver = cep->usrdevice;
mui.driver_unit = cep->usrdeviceunit;
mui.updown = SOFT_DIS;
if((ioctl(isdnfd, I4B_UPDOWN_IND, &mui)) < 0)
{
log(LL_ERR, "if_down: ioctl I4B_UPDOWN_IND failed: %s", strerror(errno));
error_exit(1, "if_down: ioctl I4B_UPDOWN_IND failed: %s", strerror(errno));
}
cep->went_down_time = time(NULL);
cep->down_retry_count = 0;
#ifdef USE_CURSES
if(do_fullscreen)
display_updown(cep, 0);
#endif
#ifdef I4B_EXTERNAL_MONITOR
monitor_evnt_updown(cep, 0);
#endif
}
/*--------------------------------------------------------------------------*
* send a dial response to (an interface in) the kernel
*--------------------------------------------------------------------------*/
void
dialresponse(struct cfg_entry *cep, int dstat)
{
msg_dialout_resp_t mdr;
static char *stattab[] = {
"normal condition",
"temporary failure",
"permanent failure",
"dialout not allowed"
};
if(dstat < DSTAT_NONE || dstat > DSTAT_INONLY)
{
log(LL_ERR, "dialresponse: dstat out of range %d!", dstat);
return;
}
mdr.driver = cep->usrdevice;
mdr.driver_unit = cep->usrdeviceunit;
mdr.stat = dstat;
mdr.cause = cep->disc_cause;
if((ioctl(isdnfd, I4B_DIALOUT_RESP, &mdr)) < 0)
{
log(LL_ERR, "dialresponse: ioctl I4B_DIALOUT_RESP failed: %s", strerror(errno));
error_exit(1, "dialresponse: ioctl I4B_DIALOUT_RESP failed: %s", strerror(errno));
}
DBGL(DL_DRVR, (log(LL_DBG, "dialresponse: sent [%s]", stattab[dstat])));
}
/*--------------------------------------------------------------------------*
* screening/presentation indicator
*--------------------------------------------------------------------------*/
void
handle_scrprs(int cdid, int scr, int prs, char *caller)
{
/* screening indicator */
if(scr < SCR_NONE || scr > SCR_NET)
{
log(LL_ERR, "msg_connect_ind: invalid screening indicator value %d!", scr);
}
else
{
static char *scrtab[] = {
"no screening indicator",
"sreening user provided, not screened",
"screening user provided, verified & passed",
"screening user provided, verified & failed",
"screening network provided", };
if(extcallattr)
{
log(LL_CHD, "%05d %s %s", cdid, caller, scrtab[scr]);
}
else
{
DBGL(DL_MSG, (log(LL_DBG, "%s - %s", caller, scrtab[scr])));
}
}
/* presentation indicator */
if(prs < PRS_NONE || prs > PRS_RESERVED)
{
log(LL_ERR, "msg_connect_ind: invalid presentation indicator value %d!", prs);
}
else
{
static char *prstab[] = {
"no presentation indicator",
"presentation allowed",
"presentation restricted",
"number not available due to interworking",
"reserved presentation value" };
if(extcallattr)
{
log(LL_CHD, "%05d %s %s", cdid, caller, prstab[prs]);
}
else
{
DBGL(DL_MSG, (log(LL_DBG, "%s - %s", caller, prstab[prs])));
}
}
}
/*--------------------------------------------------------------------------*
* check if the time is valid for an entry
*--------------------------------------------------------------------------*/
static int
isvalidtime(struct cfg_entry *cep)
{
time_t t;
struct tm *tp;
if(cep->day == 0)
return(1);
t = time(NULL);
tp = localtime(&t);
if(cep->day & HD)
{
if(isholiday(tp->tm_mday, (tp->tm_mon)+1, (tp->tm_year)+1900))
{
DBGL(DL_MSG, (log(LL_DBG, "isvalidtime: holiday %d.%d.%d", tp->tm_mday, (tp->tm_mon)+1, (tp->tm_year)+1900)));
goto dayok;
}
}
if(cep->day & (1 << tp->tm_wday))
{
DBGL(DL_MSG, (log(LL_DBG, "isvalidtime: day match")));
goto dayok;
}
return(0);
dayok:
if(cep->fromhr==0 && cep->frommin==0 && cep->tohr==0 && cep->tomin==0)
{
DBGL(DL_MSG, (log(LL_DBG, "isvalidtime: no time specified, match!")));
return(1);
}
if(cep->tohr < cep->fromhr)
{
/* before 00:00 */
if( (tp->tm_hour > cep->fromhr) ||
(tp->tm_hour == cep->fromhr && tp->tm_min > cep->frommin) )
{
DBGL(DL_MSG, (log(LL_DBG, "isvalidtime: t<f-1, spec=%02d:%02d-%02d:%02d, curr=%02d:%02d, match!",
cep->fromhr, cep->frommin,
cep->tohr, cep->tomin,
tp->tm_hour, tp->tm_min)));
return(1);
}
/* after 00:00 */
if( (tp->tm_hour < cep->tohr) ||
(tp->tm_hour == cep->tohr && tp->tm_min < cep->tomin) )
{
DBGL(DL_MSG, (log(LL_DBG, "isvalidtime: t<f-2, spec=%02d:%02d-%02d:%02d, curr=%02d:%02d, match!",
cep->fromhr, cep->frommin,
cep->tohr, cep->tomin,
tp->tm_hour, tp->tm_min)));
return(1);
}
}
else if(cep->fromhr == cep->tohr)
{
if(tp->tm_min >= cep->frommin && tp->tm_min < cep->tomin)
{
DBGL(DL_MSG, (log(LL_DBG, "isvalidtime: f=t, spec=%02d:%02d-%02d:%02d, curr=%02d:%02d, match!",
cep->fromhr, cep->frommin,
cep->tohr, cep->tomin,
tp->tm_hour, tp->tm_min)));
return(1);
}
}
else
{
if((tp->tm_hour > cep->fromhr && tp->tm_hour < cep->tohr) ||
(tp->tm_hour == cep->fromhr && tp->tm_min >= cep->frommin) ||
(tp->tm_hour == cep->tohr && tp->tm_min < cep->tomin) )
{
DBGL(DL_MSG, (log(LL_DBG, "isvalidtime: t>f, spec=%02d:%02d-%02d:%02d, curr=%02d:%02d, match!",
cep->fromhr, cep->frommin,
cep->tohr, cep->tomin,
tp->tm_hour, tp->tm_min)));
return(1);
}
}
DBGL(DL_MSG, (log(LL_DBG, "isvalidtime: spec=%02d:%02d-%02d:%02d, curr=%02d:%02d, no match!",
cep->fromhr, cep->frommin,
cep->tohr, cep->tomin,
tp->tm_hour, tp->tm_min)));
return(0);
}
struct cfg_entry *
get_first_cfg_entry()
{
return (SIMPLEQ_FIRST(&cfg_entry_list));
}
int count_cfg_entries()
{
int cnt;
struct cfg_entry *cfe;
cnt = 0;
SIMPLEQ_FOREACH(cfe, &cfg_entry_list, cfgq)
cnt++;
return (cnt);
}
struct cfg_entry *
find_cfg_entry(int index)
{
struct cfg_entry *cep;
SIMPLEQ_FOREACH(cep, &cfg_entry_list, cfgq)
if (cep->index == index)
return cep;
return NULL;
}
int
add_cfg_entry(struct cfg_entry *cfe)
{
struct cfg_entry *cep;
int max = -1;
SIMPLEQ_FOREACH(cep, &cfg_entry_list, cfgq)
if (cep->index > max)
max = cep->index;
cfe->index = max;
SIMPLEQ_INSERT_TAIL(&cfg_entry_list, cfe, cfgq);
return max;
}
void
remove_all_cfg_entries()
{
struct cfg_entry *cep;
while (!SIMPLEQ_EMPTY(&cfg_entry_list)) {
cep = SIMPLEQ_FIRST(&cfg_entry_list);
SIMPLEQ_REMOVE_HEAD(&cfg_entry_list, cfgq);
if (cep->ppp_expect_name)
free(cep->ppp_expect_name);
if (cep->ppp_expect_password)
free(cep->ppp_expect_password);
if (cep->ppp_send_name)
free(cep->ppp_send_name);
if (cep->ppp_send_password)
free(cep->ppp_send_password);
free(cep);
}
}
struct isdn_ctrl_state * get_first_ctrl_state()
{
return SLIST_FIRST(&isdn_ctrl_list);
}
int count_ctrl_states()
{
int cnt = 0;
struct isdn_ctrl_state *ctrl;
SLIST_FOREACH(ctrl, &isdn_ctrl_list, ctrlq)
cnt++;
return (cnt);
}
void remove_all_ctrl_state()
{
struct isdn_ctrl_state *ctrl;
while (!SLIST_EMPTY(&isdn_ctrl_list)) {
ctrl = SLIST_FIRST(&isdn_ctrl_list);
SLIST_REMOVE_HEAD(&isdn_ctrl_list, ctrlq);
free(ctrl);
}
}
struct isdn_ctrl_state *
find_ctrl_state(int controller)
{
struct isdn_ctrl_state *ctrl;
SLIST_FOREACH(ctrl, &isdn_ctrl_list, ctrlq)
if (ctrl->bri == controller)
return ctrl;
return NULL;
}
int
add_ctrl_state(struct isdn_ctrl_state *cstate)
{
SLIST_INSERT_HEAD(&isdn_ctrl_list, cstate, ctrlq);
return 0;
}
int
remove_ctrl_state(int controller)
{
struct isdn_ctrl_state *ctrl = find_ctrl_state(controller);
struct cfg_entry *cep;
if (ctrl == NULL)
return 0;
if ((get_controller_state(ctrl)) == CTRL_UP) {
if((ret_channel_state(ctrl, CHAN_B1)) == CHAN_RUN)
{
if((cep = get_cep_by_cc(controller, CHAN_B1)) != NULL)
{
#ifdef USE_CURSES
if(do_fullscreen)
display_disconnect(cep);
#endif
#ifdef I4B_EXTERNAL_MONITOR
monitor_evnt_disconnect(cep);
#endif
cep->cdid = -1;
cep->isdncontrollerused = -1;
cep->isdnchannelused = -1;
cep->state = ST_IDLE;
}
}
if ((ret_channel_state(ctrl, CHAN_B2)) == CHAN_RUN)
{
if((cep = get_cep_by_cc(controller, CHAN_B2)) != NULL)
{
#ifdef USE_CURSES
if(do_fullscreen)
display_disconnect(cep);
#endif
#ifdef I4B_EXTERNAL_MONITOR
monitor_evnt_disconnect(cep);
#endif
cep->cdid = -1;
cep->isdncontrollerused = -1;
cep->isdnchannelused = -1;
cep->state = ST_IDLE;
}
}
}
SLIST_REMOVE(&isdn_ctrl_list, ctrl, isdn_ctrl_state, ctrlq);
return 0;
}
/* EOF */
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