d75991c9fe
interface was left in an active, but not connected, state, which resulted in data being sent to it and the transmit queue filling up. This happened because the driver never informed sppp that it shoulkd clean up the connection. This fix informs sppp that it should clean things up. The fix was actually developed and tested under -stable, so a short MFC period seems appropriate, say 2 days. Contributed by: Ari Suutari <ari.suutari@syncrontech.com>
680 lines
19 KiB
C
680 lines
19 KiB
C
/*
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* Copyright (c) 1997 Joerg Wunsch. All rights reserved.
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*
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* Copyright (c) 1997, 2002 Hellmuth Michaelis. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*---------------------------------------------------------------------------
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*
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* i4b_isppp.c - isdn4bsd kernel SyncPPP driver
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* --------------------------------------------
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*
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* Uses Serge Vakulenko's sppp backend (originally contributed with
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* the "cx" driver for Cronyx's HDLC-in-hardware device). This driver
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* is only the glue between sppp and i4b.
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*
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* $FreeBSD$
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*
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* last edit-date: [Sat Mar 9 14:09:27 2002]
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*
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*---------------------------------------------------------------------------*/
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#include "i4bisppp.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/errno.h>
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#include <sys/ioccom.h>
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#include <sys/sockio.h>
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#include <sys/kernel.h>
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#include <net/if.h>
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#include <net/if_types.h>
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#include <net/if_sppp.h>
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#include <sys/time.h>
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#include <net/bpf.h>
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#include <machine/i4b_ioctl.h>
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#include <machine/i4b_debug.h>
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#include <i4b/include/i4b_global.h>
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#include <i4b/include/i4b_l3l4.h>
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#include <i4b/layer4/i4b_l4.h>
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#define ISPPP_FMT "isp%d: "
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#define ISPPP_ARG(sc) ((sc)->sc_if.if_unit)
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#define PDEVSTATIC static
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#define IFP2UNIT(ifp) (ifp)->if_unit
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# define CALLOUT_INIT(chan) callout_handle_init(chan)
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# define TIMEOUT(fun, arg, chan, tick) chan = timeout(fun, arg, tick)
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# define UNTIMEOUT(fun, arg, chan) untimeout(fun, arg, chan)
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# define IOCTL_CMD_T u_long
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PDEVSTATIC void i4bispppattach(void *);
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PSEUDO_SET(i4bispppattach, i4b_isppp);
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#define I4BISPPPACCT 1 /* enable accounting messages */
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#define I4BISPPPACCTINTVL 2 /* accounting msg interval in secs */
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#define I4BISPPPDISCDEBUG 1
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#define PPP_HDRLEN 4 /* 4 octetts PPP header length */
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struct i4bisppp_softc {
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/*
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* struct sppp starts with a struct ifnet, but we gotta allocate
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* more space for it. NB: do not relocate this union, it must
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* be first in isppp_softc. The tls and tlf hooks below want to
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* convert a ``struct sppp *'' into a ``struct isppp_softc *''.
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*/
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union {
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struct ifnet scu_if;
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struct sppp scu_sp;
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} sc_if_un;
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#define sc_if sc_if_un.scu_if
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int sc_state; /* state of the interface */
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call_desc_t *sc_cdp; /* ptr to call descriptor */
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#ifdef I4BISPPPACCT
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int sc_iinb; /* isdn driver # of inbytes */
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int sc_ioutb; /* isdn driver # of outbytes */
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int sc_inb; /* # of bytes rx'd */
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int sc_outb; /* # of bytes tx'd */
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int sc_linb; /* last # of bytes rx'd */
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int sc_loutb; /* last # of bytes tx'd */
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int sc_fn; /* flag, first null acct */
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#endif
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struct callout_handle sc_ch;
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} i4bisppp_softc[NI4BISPPP];
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static void i4bisppp_init_linktab(int unit);
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static int i4bisppp_ioctl(struct ifnet *ifp, IOCTL_CMD_T cmd, caddr_t data);
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#if 0
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static void i4bisppp_send(struct ifnet *ifp);
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#endif
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static void i4bisppp_start(struct ifnet *ifp);
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#if 0 /* never used ??? */
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static void i4bisppp_timeout(void *cookie);
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#endif
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static void i4bisppp_tls(struct sppp *sp);
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static void i4bisppp_tlf(struct sppp *sp);
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static void i4bisppp_state_changed(struct sppp *sp, int new_state);
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static void i4bisppp_negotiation_complete(struct sppp *sp);
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static void i4bisppp_watchdog(struct ifnet *ifp);
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time_t i4bisppp_idletime(int unit);
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/* initialized by L4 */
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static drvr_link_t i4bisppp_drvr_linktab[NI4BISPPP];
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static isdn_link_t *isdn_linktab[NI4BISPPP];
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enum i4bisppp_states {
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ST_IDLE, /* initialized, ready, idle */
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ST_DIALING, /* dialling out to remote */
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ST_CONNECTED, /* connected to remote */
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};
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/*===========================================================================*
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* DEVICE DRIVER ROUTINES
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*===========================================================================*/
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/*---------------------------------------------------------------------------*
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* interface attach routine at kernel boot time
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*---------------------------------------------------------------------------*/
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PDEVSTATIC void
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i4bispppattach(void *dummy)
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{
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struct i4bisppp_softc *sc = i4bisppp_softc;
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int i;
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#ifdef SPPP_VJ
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printf("i4bisppp: %d ISDN SyncPPP device(s) attached (VJ header compression)\n", NI4BISPPP);
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#else
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printf("i4bisppp: %d ISDN SyncPPP device(s) attached\n", NI4BISPPP);
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#endif
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for(i = 0; i < NI4BISPPP; sc++, i++) {
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i4bisppp_init_linktab(i);
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sc->sc_if.if_softc = sc;
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sc->sc_if.if_name = "isp";
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sc->sc_if.if_unit = i;
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sc->sc_if.if_mtu = PP_MTU;
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sc->sc_if.if_flags = IFF_SIMPLEX | IFF_POINTOPOINT;
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sc->sc_if.if_type = IFT_ISDNBASIC;
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sc->sc_state = ST_IDLE;
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sc->sc_if.if_ioctl = i4bisppp_ioctl;
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/* actually initialized by sppp_attach() */
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/* sc->sc_if.if_output = sppp_output; */
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sc->sc_if.if_start = i4bisppp_start;
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sc->sc_if.if_hdrlen = 0;
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sc->sc_if.if_addrlen = 0;
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sc->sc_if.if_snd.ifq_maxlen = IFQ_MAXLEN;
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sc->sc_if.if_ipackets = 0;
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sc->sc_if.if_ierrors = 0;
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sc->sc_if.if_opackets = 0;
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sc->sc_if.if_oerrors = 0;
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sc->sc_if.if_collisions = 0;
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sc->sc_if.if_ibytes = 0;
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sc->sc_if.if_obytes = 0;
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sc->sc_if.if_imcasts = 0;
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sc->sc_if.if_omcasts = 0;
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sc->sc_if.if_iqdrops = 0;
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sc->sc_if.if_noproto = 0;
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#if I4BISPPPACCT
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sc->sc_if.if_timer = 0;
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sc->sc_if.if_watchdog = i4bisppp_watchdog;
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sc->sc_iinb = 0;
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sc->sc_ioutb = 0;
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sc->sc_inb = 0;
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sc->sc_outb = 0;
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sc->sc_linb = 0;
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sc->sc_loutb = 0;
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sc->sc_fn = 1;
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#endif
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sc->sc_if_un.scu_sp.pp_tls = i4bisppp_tls;
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sc->sc_if_un.scu_sp.pp_tlf = i4bisppp_tlf;
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sc->sc_if_un.scu_sp.pp_con = i4bisppp_negotiation_complete;
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sc->sc_if_un.scu_sp.pp_chg = i4bisppp_state_changed;
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sppp_attach(&sc->sc_if);
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#if 0 /* ??? -hm */
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ether_ifattach(&sc->sc_if, 0);
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#else
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if_attach(&sc->sc_if);
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#endif
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CALLOUT_INIT(&sc->sc_ch);
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bpfattach(&sc->sc_if, DLT_PPP, PPP_HDRLEN);
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}
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}
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/*---------------------------------------------------------------------------*
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* process ioctl
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*---------------------------------------------------------------------------*/
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static int
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i4bisppp_ioctl(struct ifnet *ifp, IOCTL_CMD_T cmd, caddr_t data)
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{
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struct i4bisppp_softc *sc = ifp->if_softc;
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#if 0
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struct sppp *sp = (struct sppp *)sc;
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struct ifaddr *ifa = (struct ifaddr *) data;
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struct ifreq *ifr = (struct ifreq *) data;
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#endif
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int error;
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error = sppp_ioctl(&sc->sc_if, cmd, data);
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if (error)
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return error;
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switch(cmd) {
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case SIOCSIFFLAGS:
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#if 0 /* never used ??? */
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x = splimp();
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if ((ifp->if_flags & IFF_UP) == 0)
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UNTIMEOUT(i4bisppp_timeout, (void *)sp, sc->sc_ch);
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splx(x);
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#endif
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break;
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}
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return 0;
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}
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/*---------------------------------------------------------------------------*
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* start output to ISDN B-channel
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*---------------------------------------------------------------------------*/
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static void
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i4bisppp_start(struct ifnet *ifp)
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{
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struct i4bisppp_softc *sc = ifp->if_softc;
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struct mbuf *m;
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/* int s; */
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int unit = IFP2UNIT(ifp);
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if (sppp_isempty(ifp))
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return;
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if(sc->sc_state != ST_CONNECTED)
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return;
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/*
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* s = splimp();
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* ifp->if_flags |= IFF_OACTIVE; // - need to clear this somewhere
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* splx(s);
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*/
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while ((m = sppp_dequeue(&sc->sc_if)) != NULL)
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{
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BPF_MTAP(ifp, m);
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microtime(&ifp->if_lastchange);
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IF_LOCK(isdn_linktab[unit]->tx_queue);
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if(_IF_QFULL(isdn_linktab[unit]->tx_queue))
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{
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NDBGL4(L4_ISPDBG, "isp%d, tx queue full!", unit);
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m_freem(m);
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}
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else
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{
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#if 0
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sc->sc_if.if_obytes += m->m_pkthdr.len;
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#endif
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sc->sc_outb += m->m_pkthdr.len;
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sc->sc_if.if_opackets++;
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_IF_ENQUEUE(isdn_linktab[unit]->tx_queue, m);
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}
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IF_UNLOCK(isdn_linktab[unit]->tx_queue);
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}
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isdn_linktab[unit]->bch_tx_start(isdn_linktab[unit]->unit,
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isdn_linktab[unit]->channel);
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}
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#ifdef I4BISPPPACCT
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/*---------------------------------------------------------------------------*
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* watchdog routine
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*---------------------------------------------------------------------------*/
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static void
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i4bisppp_watchdog(struct ifnet *ifp)
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{
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struct i4bisppp_softc *sc = ifp->if_softc;
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int unit = IFP2UNIT(ifp);
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bchan_statistics_t bs;
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(*isdn_linktab[unit]->bch_stat)
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(isdn_linktab[unit]->unit, isdn_linktab[unit]->channel, &bs);
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sc->sc_ioutb += bs.outbytes;
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sc->sc_iinb += bs.inbytes;
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if((sc->sc_iinb != sc->sc_linb) || (sc->sc_ioutb != sc->sc_loutb) || sc->sc_fn)
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{
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int ri = (sc->sc_iinb - sc->sc_linb)/I4BISPPPACCTINTVL;
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int ro = (sc->sc_ioutb - sc->sc_loutb)/I4BISPPPACCTINTVL;
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if((sc->sc_iinb == sc->sc_linb) && (sc->sc_ioutb == sc->sc_loutb))
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sc->sc_fn = 0;
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else
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sc->sc_fn = 1;
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sc->sc_linb = sc->sc_iinb;
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sc->sc_loutb = sc->sc_ioutb;
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i4b_l4_accounting(BDRV_ISPPP, unit, ACCT_DURING,
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sc->sc_ioutb, sc->sc_iinb, ro, ri, sc->sc_outb, sc->sc_inb);
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}
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sc->sc_if.if_timer = I4BISPPPACCTINTVL;
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#if 0 /* old stuff, keep it around */
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printf(ISPPP_FMT "transmit timeout\n", ISPPP_ARG(sc));
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i4bisppp_start(ifp);
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#endif
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}
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#endif /* I4BISPPPACCT */
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/*
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*===========================================================================*
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* SyncPPP layer interface routines
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*===========================================================================*
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*/
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#if 0 /* never used ??? */
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/*---------------------------------------------------------------------------*
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* just an alias for i4bisppp_tls, but of type timeout_t
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*---------------------------------------------------------------------------*/
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static void
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i4bisppp_timeout(void *cookie)
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{
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i4bisppp_tls((struct sppp *)cookie);
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}
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#endif
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/*---------------------------------------------------------------------------*
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* PPP this-layer-started action
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*---------------------------------------------------------------------------*
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*/
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static void
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i4bisppp_tls(struct sppp *sp)
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{
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struct i4bisppp_softc *sc = (struct i4bisppp_softc *)sp;
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struct ifnet *ifp = (struct ifnet *)sp;
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if(sc->sc_state == ST_CONNECTED)
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return;
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i4b_l4_dialout(BDRV_ISPPP, IFP2UNIT(ifp));
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}
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/*---------------------------------------------------------------------------*
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* PPP this-layer-finished action
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*---------------------------------------------------------------------------*
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*/
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static void
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i4bisppp_tlf(struct sppp *sp)
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{
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struct i4bisppp_softc *sc = (struct i4bisppp_softc *)sp;
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/* call_desc_t *cd = sc->sc_cdp; */
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struct ifnet *ifp = (struct ifnet *)sp;
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if(sc->sc_state != ST_CONNECTED)
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return;
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#if 0 /* never used ??? */
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UNTIMEOUT(i4bisppp_timeout, (void *)sp, sc->sc_ch);
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#endif
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i4b_l4_drvrdisc(BDRV_ISPPP, IFP2UNIT(ifp));
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}
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/*---------------------------------------------------------------------------*
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* PPP interface phase change
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*---------------------------------------------------------------------------*
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*/
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static void
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i4bisppp_state_changed(struct sppp *sp, int new_state)
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{
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struct i4bisppp_softc *sc = (struct i4bisppp_softc *)sp;
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i4b_l4_ifstate_changed(sc->sc_cdp, new_state);
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}
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/*---------------------------------------------------------------------------*
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* PPP control protocol negotiation complete (run ip-up script now)
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*---------------------------------------------------------------------------*
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*/
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static void
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i4bisppp_negotiation_complete(struct sppp *sp)
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{
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struct i4bisppp_softc *sc = (struct i4bisppp_softc *)sp;
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i4b_l4_negcomplete(sc->sc_cdp);
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}
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/*===========================================================================*
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* ISDN INTERFACE ROUTINES
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*===========================================================================*/
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/*---------------------------------------------------------------------------*
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* this routine is called from L4 handler at connect time
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*---------------------------------------------------------------------------*/
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static void
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i4bisppp_connect(int unit, void *cdp)
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{
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struct i4bisppp_softc *sc = &i4bisppp_softc[unit];
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struct sppp *sp = &sc->sc_if_un.scu_sp;
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int s = splimp();
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sc->sc_cdp = (call_desc_t *)cdp;
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sc->sc_state = ST_CONNECTED;
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#if I4BISPPPACCT
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sc->sc_iinb = 0;
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sc->sc_ioutb = 0;
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sc->sc_inb = 0;
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sc->sc_outb = 0;
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sc->sc_linb = 0;
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sc->sc_loutb = 0;
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sc->sc_if.if_timer = I4BISPPPACCTINTVL;
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#endif
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#if 0 /* never used ??? */
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UNTIMEOUT(i4bisppp_timeout, (void *)sp, sc->sc_ch);
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#endif
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sp->pp_up(sp); /* tell PPP we are ready */
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sp->pp_last_sent = sp->pp_last_recv = SECOND;
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splx(s);
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}
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/*---------------------------------------------------------------------------*
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* this routine is called from L4 handler at disconnect time
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*---------------------------------------------------------------------------*/
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static void
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i4bisppp_disconnect(int unit, void *cdp)
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{
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call_desc_t *cd = (call_desc_t *)cdp;
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struct i4bisppp_softc *sc = &i4bisppp_softc[unit];
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struct sppp *sp = &sc->sc_if_un.scu_sp;
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|
|
int s = splimp();
|
|
|
|
/* new stuff to check that the active channel is being closed */
|
|
if (cd != sc->sc_cdp)
|
|
{
|
|
NDBGL4(L4_ISPDBG, "isp%d, channel%d not active!", unit, cd->channelid);
|
|
splx(s);
|
|
return;
|
|
}
|
|
|
|
#if I4BISPPPACCT
|
|
sc->sc_if.if_timer = 0;
|
|
#endif
|
|
|
|
i4b_l4_accounting(BDRV_ISPPP, unit, ACCT_FINAL,
|
|
sc->sc_ioutb, sc->sc_iinb, 0, 0, sc->sc_outb, sc->sc_inb);
|
|
|
|
if (sc->sc_state == ST_CONNECTED)
|
|
{
|
|
#if 0 /* never used ??? */
|
|
UNTIMEOUT(i4bisppp_timeout, (void *)sp, sc->sc_ch);
|
|
#endif
|
|
sc->sc_cdp = (call_desc_t *)0;
|
|
/* do thhis here because pp_down calls i4bisppp_tlf */
|
|
sc->sc_state = ST_IDLE;
|
|
sp->pp_down(sp); /* tell PPP we have hung up */
|
|
}
|
|
|
|
splx(s);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* this routine is used to give a feedback from userland demon
|
|
* in case of dial problems
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
i4bisppp_dialresponse(int unit, int status, cause_t cause)
|
|
{
|
|
struct i4bisppp_softc *sc = &i4bisppp_softc[unit];
|
|
struct sppp *sp = &sc->sc_if_un.scu_sp;
|
|
|
|
NDBGL4(L4_ISPDBG, "isp%d: status=%d, cause=%d", unit, status, cause);
|
|
|
|
if(status != DSTAT_NONE)
|
|
{
|
|
struct mbuf *m;
|
|
|
|
NDBGL4(L4_ISPDBG, "isp%d: clearing queues", unit);
|
|
|
|
if(!(sppp_isempty(&sc->sc_if)))
|
|
{
|
|
while((m = sppp_dequeue(&sc->sc_if)) != NULL)
|
|
m_freem(m);
|
|
}
|
|
|
|
sc->sc_cdp = (call_desc_t *)0;
|
|
/* do thhis here because pp_down calls i4bisppp_tlf */
|
|
sc->sc_state = ST_IDLE;
|
|
|
|
/* Ahh. ppp does't like to get a down event when
|
|
* dialing fails. So first tell that we are up
|
|
* (doesn't hurt us since sc_state != ST_CONNECTED)
|
|
* and then go down.
|
|
*/
|
|
sp->pp_up(sp);
|
|
sp->pp_down(sp);
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* interface up/down
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
i4bisppp_updown(int unit, int updown)
|
|
{
|
|
/* could probably do something useful here */
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* this routine is called from the HSCX interrupt handler
|
|
* when a new frame (mbuf) has been received and was put on
|
|
* the rx queue.
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
i4bisppp_rx_data_rdy(int unit)
|
|
{
|
|
struct i4bisppp_softc *sc = &i4bisppp_softc[unit];
|
|
struct mbuf *m;
|
|
int s;
|
|
|
|
if((m = *isdn_linktab[unit]->rx_mbuf) == NULL)
|
|
return;
|
|
|
|
m->m_pkthdr.rcvif = &sc->sc_if;
|
|
m->m_pkthdr.len = m->m_len;
|
|
|
|
microtime(&sc->sc_if.if_lastchange);
|
|
|
|
sc->sc_if.if_ipackets++;
|
|
#if 0
|
|
sc->sc_if.if_ibytes += m->m_pkthdr.len;
|
|
#endif
|
|
|
|
#if I4BISPPPACCT
|
|
sc->sc_inb += m->m_pkthdr.len;
|
|
#endif
|
|
|
|
#ifdef I4BISPPPDEBUG
|
|
printf("i4bisppp_rx_data_ready: received packet!\n");
|
|
#endif
|
|
|
|
BPF_MTAP(&sc->sc_if, m);
|
|
|
|
s = splimp();
|
|
|
|
sppp_input(&sc->sc_if, m);
|
|
|
|
splx(s);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* this routine is called from the HSCX interrupt handler
|
|
* when the last frame has been sent out and there is no
|
|
* further frame (mbuf) in the tx queue.
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
i4bisppp_tx_queue_empty(int unit)
|
|
{
|
|
i4bisppp_start(&i4bisppp_softc[unit].sc_if);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* THIS should be used instead of last_active_time to implement
|
|
* an activity timeout mechanism.
|
|
*
|
|
* Sending back the time difference unneccessarily complicates the
|
|
* idletime checks in i4b_l4.c. Return the largest time instead.
|
|
* That way the code in i4b_l4.c needs only minimal changes.
|
|
*---------------------------------------------------------------------------*/
|
|
time_t
|
|
i4bisppp_idletime(int unit)
|
|
{
|
|
struct sppp *sp;
|
|
sp = (struct sppp *) &i4bisppp_softc[unit];
|
|
|
|
return((sp->pp_last_recv < sp->pp_last_sent) ?
|
|
sp->pp_last_sent : sp->pp_last_recv);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* this routine is called from the HSCX interrupt handler
|
|
* each time a packet is received or transmitted. It should
|
|
* be used to implement an activity timeout mechanism.
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
i4bisppp_activity(int unit, int rxtx)
|
|
{
|
|
i4bisppp_softc[unit].sc_cdp->last_active_time = SECOND;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* return this drivers linktab address
|
|
*---------------------------------------------------------------------------*/
|
|
drvr_link_t *
|
|
i4bisppp_ret_linktab(int unit)
|
|
{
|
|
return(&i4bisppp_drvr_linktab[unit]);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* setup the isdn_linktab for this driver
|
|
*---------------------------------------------------------------------------*/
|
|
void
|
|
i4bisppp_set_linktab(int unit, isdn_link_t *ilt)
|
|
{
|
|
isdn_linktab[unit] = ilt;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* initialize this drivers linktab
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
i4bisppp_init_linktab(int unit)
|
|
{
|
|
i4bisppp_drvr_linktab[unit].unit = unit;
|
|
i4bisppp_drvr_linktab[unit].bch_rx_data_ready = i4bisppp_rx_data_rdy;
|
|
i4bisppp_drvr_linktab[unit].bch_tx_queue_empty = i4bisppp_tx_queue_empty;
|
|
i4bisppp_drvr_linktab[unit].bch_activity = i4bisppp_activity;
|
|
i4bisppp_drvr_linktab[unit].line_connected = i4bisppp_connect;
|
|
i4bisppp_drvr_linktab[unit].line_disconnected = i4bisppp_disconnect;
|
|
i4bisppp_drvr_linktab[unit].dial_response = i4bisppp_dialresponse;
|
|
i4bisppp_drvr_linktab[unit].updown_ind = i4bisppp_updown;
|
|
}
|
|
|
|
/*===========================================================================*/
|