diff options
Diffstat (limited to 'sys/i4b/driver/i4b_isppp.c')
-rw-r--r-- | sys/i4b/driver/i4b_isppp.c | 710 |
1 files changed, 710 insertions, 0 deletions
diff --git a/sys/i4b/driver/i4b_isppp.c b/sys/i4b/driver/i4b_isppp.c new file mode 100644 index 0000000..b1cb2cf --- /dev/null +++ b/sys/i4b/driver/i4b_isppp.c @@ -0,0 +1,710 @@ +/* + * Copyright (c) 1997 Joerg Wunsch. All rights reserved. + * + * Copyright (c) 1997, 1998 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_isppp.c - isdn4bsd kernel SyncPPP driver + * -------------------------------------------- + * + * Uses Serge Vakulenko's sppp backend (originally contributed with + * the "cx" driver for Cronyx's HDLC-in-hardware device). This driver + * is only the glue between sppp and i4b. + * + * $Id: i4b_isppp.c,v 1.20 1998/12/18 14:20:44 hm Exp $ + * + * last edit-date: [Fri Dec 18 11:47:58 1998] + * + *---------------------------------------------------------------------------*/ + +#include "i4bisppp.h" +#ifdef __FreeBSD__ +#include "sppp.h" +#endif + +#if NI4BISPPP == 0 +# error "You need to define `pseudo-device sppp <N>' with options ISPPP" +#endif + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/mbuf.h> +#include <sys/socket.h> +#include <sys/errno.h> +#include <sys/ioccom.h> +#include <sys/sockio.h> +#include <sys/kernel.h> +#include <sys/protosw.h> + +#include <net/if.h> +#include <net/if_types.h> +#include <net/netisr.h> +#include <net/route.h> +#ifdef __FreeBSD__ +#include <net/if_sppp.h> +#else +#include <i4b/sppp/if_sppp.h> +#endif + +#include <netinet/in.h> +#include <netinet/in_systm.h> +#include <netinet/in_var.h> +#include <netinet/ip.h> + +#include "bpfilter.h" +#if NBPFILTER > 0 +#include <sys/time.h> +#include <net/bpf.h> +#endif + +#ifdef __FreeBSD__ +#include <machine/i4b_ioctl.h> +#include <machine/i4b_cause.h> +#else +#include <i4b/i4b_ioctl.h> +#include <i4b/i4b_cause.h> +#endif + +#include <i4b/include/i4b_global.h> +#include <i4b/include/i4b_mbuf.h> +#include <i4b/include/i4b_l3l4.h> + +#include <i4b/layer4/i4b_l4.h> + +#ifdef __FreeBSD__ +#define ISPPP_FMT "isp%d: " +#define ISPPP_ARG(sc) ((sc)->sc_if.if_unit) +#define PDEVSTATIC static +#define IFP2UNIT(ifp) (ifp)->if_unit + +# if __FreeBSD_version >= 300001 +# define CALLOUT_INIT(chan) callout_handle_init(chan) +# define TIMEOUT(fun, arg, chan, tick) chan = timeout(fun, arg, tick) +# define UNTIMEOUT(fun, arg, chan) untimeout(fun, arg, chan) +# define IOCTL_CMD_T u_long +# else +# define CALLOUT_INIT(chan) do {} while(0) +# define TIMEOUT(fun, arg, chan, tick) timeout(fun, arg, tick) +# define UNTIMEOUT(fun, arg, chan) untimeout(fun, arg) +# define IOCTL_CMD_T int +# endif + +#elif defined __NetBSD__ || defined __OpenBSD__ +#define ISPPP_FMT "%s: " +#define ISPPP_ARG(sc) ((sc)->sc_if.if_xname) +#define PDEVSTATIC /* not static */ +#define IOCTL_CMD_T u_long +#define IFP2UNIT(ifp) ((struct i4bisppp_softc *)ifp->if_softc)->sc_unit +#else +# error "What system are you using?" +#endif + +#ifdef __FreeBSD__ +PDEVSTATIC void i4bispppattach(void *); +PSEUDO_SET(i4bispppattach, i4b_isppp); +#else +PDEVSTATIC void i4bispppattach __P((void)); +#endif + +#define I4BISPPPACCT 1 /* enable accounting messages */ +#define I4BISPPPACCTINTVL 2 /* accounting msg interval in secs */ +#define I4BISPPPDISCDEBUG 1 + +#define PPP_HDRLEN 4 /* 4 octetts PPP header length */ + +struct i4bisppp_softc { + /* + * struct sppp starts with a struct ifnet, but we gotta allocate + * more space for it. NB: do not relocate this union, it must + * be first in isppp_softc. The tls and tlf hooks below want to + * convert a ``struct sppp *'' into a ``struct isppp_softc *''. + */ + union { + struct ifnet scu_if; + struct sppp scu_sp; + } sc_if_un; +#define sc_if sc_if_un.scu_if + + int sc_state; /* state of the interface */ + +#ifndef __FreeBSD__ + int sc_unit; /* unit number for Net/OpenBSD */ +#endif + + call_desc_t *sc_cdp; /* ptr to call descriptor */ + +#ifdef I4BISPPPACCT + int sc_iinb; /* isdn driver # of inbytes */ + int sc_ioutb; /* isdn driver # of outbytes */ + int sc_inb; /* # of bytes rx'd */ + int sc_outb; /* # of bytes tx'd */ + int sc_linb; /* last # of bytes rx'd */ + int sc_loutb; /* last # of bytes tx'd */ + int sc_fn; /* flag, first null acct */ +#endif + +#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001 + struct callout_handle sc_ch; +#endif + +} i4bisppp_softc[NI4BISPPP]; + +static void i4bisppp_init_linktab(int unit); +static int i4bisppp_ioctl(struct ifnet *ifp, IOCTL_CMD_T cmd, caddr_t data); + +#if 0 +static void i4bisppp_send(struct ifnet *ifp); +#endif + +static void i4bisppp_start(struct ifnet *ifp); + +#if 0 /* never used ??? */ +static void i4bisppp_timeout(void *cookie); +#endif + +static void i4bisppp_tls(struct sppp *sp); +static void i4bisppp_tlf(struct sppp *sp); +static void i4bisppp_state_changed(struct sppp *sp, int new_state); +static void i4bisppp_negotiation_complete(struct sppp *sp); +static void i4bisppp_watchdog(struct ifnet *ifp); + +/* initialized by L4 */ + +static drvr_link_t i4bisppp_drvr_linktab[NI4BISPPP]; +static isdn_link_t *isdn_linktab[NI4BISPPP]; + +enum i4bisppp_states { + ST_IDLE, /* initialized, ready, idle */ + ST_DIALING, /* dialling out to remote */ + ST_CONNECTED, /* connected to remote */ +}; + +/*===========================================================================* + * DEVICE DRIVER ROUTINES + *===========================================================================*/ + +/*---------------------------------------------------------------------------* + * interface attach routine at kernel boot time + *---------------------------------------------------------------------------*/ +PDEVSTATIC void +#ifdef __FreeBSD__ +i4bispppattach(void *dummy) +#else +i4bispppattach(void) +#endif +{ + struct i4bisppp_softc *sc = i4bisppp_softc; + int i; + +#ifndef HACK_NO_PSEUDO_ATTACH_MSG + printf("i4bisppp: %d ISDN SyncPPP device(s) attached\n", + NI4BISPPP); +#endif + + for(i = 0; i < NI4BISPPP; sc++, i++) { + i4bisppp_init_linktab(i); + + sc->sc_if.if_softc = sc; + +#ifdef __FreeBSD__ + sc->sc_if.if_name = "isp"; +#if defined(__FreeBSD_version) && __FreeBSD_version < 300001 + sc->sc_if.if_next = NULL; +#endif + sc->sc_if.if_unit = i; +#else + sprintf(sc->sc_if.if_xname, "isp%d", i); + sc->sc_unit = i; +#endif + + sc->sc_if.if_mtu = PP_MTU; + sc->sc_if.if_flags = IFF_SIMPLEX | IFF_POINTOPOINT; + sc->sc_if.if_type = IFT_ISDNBASIC; + sc->sc_state = ST_IDLE; + + sc->sc_if.if_ioctl = i4bisppp_ioctl; + + /* actually initialized by sppp_attach() */ + /* sc->sc_if.if_output = sppp_output; */ + + sc->sc_if.if_start = i4bisppp_start; + + sc->sc_if.if_hdrlen = 0; + sc->sc_if.if_addrlen = 0; + sc->sc_if.if_snd.ifq_maxlen = IFQ_MAXLEN; + + sc->sc_if.if_ipackets = 0; + sc->sc_if.if_ierrors = 0; + sc->sc_if.if_opackets = 0; + sc->sc_if.if_oerrors = 0; + sc->sc_if.if_collisions = 0; + sc->sc_if.if_ibytes = 0; + sc->sc_if.if_obytes = 0; + sc->sc_if.if_imcasts = 0; + sc->sc_if.if_omcasts = 0; + sc->sc_if.if_iqdrops = 0; + sc->sc_if.if_noproto = 0; + +#if I4BISPPPACCT + sc->sc_if.if_timer = 0; + sc->sc_if.if_watchdog = i4bisppp_watchdog; + sc->sc_iinb = 0; + sc->sc_ioutb = 0; + sc->sc_inb = 0; + sc->sc_outb = 0; + sc->sc_linb = 0; + sc->sc_loutb = 0; + sc->sc_fn = 1; +#endif + + sc->sc_if_un.scu_sp.pp_tls = i4bisppp_tls; + sc->sc_if_un.scu_sp.pp_tlf = i4bisppp_tlf; + sc->sc_if_un.scu_sp.pp_con = i4bisppp_negotiation_complete; + sc->sc_if_un.scu_sp.pp_chg = i4bisppp_state_changed; + + sppp_attach(&sc->sc_if); + if_attach(&sc->sc_if); + +#if NBPFILTER > 0 +#ifdef __FreeBSD__ + bpfattach(&sc->sc_if, DLT_PPP, PPP_HDRLEN); + CALLOUT_INIT(&sc->sc_ch); +#endif /* __FreeBSD__ */ +#ifdef __NetBSD__ + bpfattach(&sc->sc_if.if_bpf, &sc->sc_if, DLT_PPP, sizeof(u_int)); +#endif +#endif + } +} + +/*---------------------------------------------------------------------------* + * process ioctl + *---------------------------------------------------------------------------*/ +static int +i4bisppp_ioctl(struct ifnet *ifp, IOCTL_CMD_T cmd, caddr_t data) +{ + struct i4bisppp_softc *sc = ifp->if_softc; +#if 0 + struct sppp *sp = (struct sppp *)sc; + struct ifaddr *ifa = (struct ifaddr *) data; + struct ifreq *ifr = (struct ifreq *) data; +#endif + + int error; + + error = sppp_ioctl(&sc->sc_if, cmd, data); + if (error) + return error; + + switch(cmd) { + case SIOCSIFFLAGS: +#if 0 /* never used ??? */ + x = splimp(); + if ((ifp->if_flags & IFF_UP) == 0) + UNTIMEOUT(i4bisppp_timeout, (void *)sp, sc->sc_ch); + splx(x); +#endif + break; + } + + return 0; +} + +/*---------------------------------------------------------------------------* + * start output to ISDN B-channel + *---------------------------------------------------------------------------*/ +static void +i4bisppp_start(struct ifnet *ifp) +{ + struct i4bisppp_softc *sc = ifp->if_softc; + struct mbuf *m; + int s; + int unit = IFP2UNIT(ifp); + + if (sppp_isempty(ifp)) + return; + + if(sc->sc_state != ST_CONNECTED) + return; + + s = splimp(); + /*ifp->if_flags |= IFF_OACTIVE; - need to clear this somewhere */ + splx(s); + + while ((m = sppp_dequeue(&sc->sc_if)) != NULL) + { + +#if NBPFILTER > 0 +#ifdef __FreeBSD__ + if (ifp->if_bpf) + bpf_mtap(ifp, m); +#endif /* __FreeBSD__ */ + +#ifdef __NetBSD__ + if (ifp->if_bpf) + bpf_mtap(ifp->if_bpf, m); +#endif +#endif /* NBPFILTER > 0 */ + + microtime(&ifp->if_lastchange); + + IF_ENQUEUE(isdn_linktab[unit]->tx_queue, m); + + sc->sc_if.if_obytes += m->m_pkthdr.len; + sc->sc_outb += m->m_pkthdr.len; + sc->sc_if.if_opackets++; + } + isdn_linktab[unit]->bch_tx_start(isdn_linktab[unit]->unit, + isdn_linktab[unit]->channel); +} + +#ifdef I4BISPPPACCT +/*---------------------------------------------------------------------------* + * watchdog routine + *---------------------------------------------------------------------------*/ +static void +i4bisppp_watchdog(struct ifnet *ifp) +{ + struct i4bisppp_softc *sc = ifp->if_softc; + int unit = IFP2UNIT(ifp); + bchan_statistics_t bs; + + (*isdn_linktab[unit]->bch_stat) + (isdn_linktab[unit]->unit, isdn_linktab[unit]->channel, &bs); + + sc->sc_ioutb += bs.outbytes; + sc->sc_iinb += bs.inbytes; + + if((sc->sc_iinb != sc->sc_linb) || (sc->sc_ioutb != sc->sc_loutb) || sc->sc_fn) + { + int ri = (sc->sc_iinb - sc->sc_linb)/I4BISPPPACCTINTVL; + int ro = (sc->sc_ioutb - sc->sc_loutb)/I4BISPPPACCTINTVL; + + if((sc->sc_iinb == sc->sc_linb) && (sc->sc_ioutb == sc->sc_loutb)) + sc->sc_fn = 0; + else + sc->sc_fn = 1; + + sc->sc_linb = sc->sc_iinb; + sc->sc_loutb = sc->sc_ioutb; + + i4b_l4_accounting(BDRV_ISPPP, unit, ACCT_DURING, + sc->sc_ioutb, sc->sc_iinb, ro, ri, sc->sc_outb, sc->sc_inb); + } + sc->sc_if.if_timer = I4BISPPPACCTINTVL; + +#if 0 /* old stuff, keep it around */ + printf(ISPPP_FMT "transmit timeout\n", ISPPP_ARG(sc)); + i4bisppp_start(ifp); +#endif +} +#endif /* I4BISPPPACCT */ + +/* + *===========================================================================* + * SyncPPP layer interface routines + *===========================================================================* + */ + +#if 0 /* never used ??? */ +/*---------------------------------------------------------------------------* + * just an alias for i4bisppp_tls, but of type timeout_t + *---------------------------------------------------------------------------*/ +static void +i4bisppp_timeout(void *cookie) +{ + i4bisppp_tls((struct sppp *)cookie); +} +#endif + +/*---------------------------------------------------------------------------* + * PPP this-layer-started action + *---------------------------------------------------------------------------* + */ +static void +i4bisppp_tls(struct sppp *sp) +{ + struct i4bisppp_softc *sc = (struct i4bisppp_softc *)sp; + struct ifnet *ifp = (struct ifnet *)sp; + + if(sc->sc_state == ST_CONNECTED) + return; + + i4b_l4_dialout(BDRV_ISPPP, IFP2UNIT(ifp)); +} + +/*---------------------------------------------------------------------------* + * PPP this-layer-finished action + *---------------------------------------------------------------------------* + */ +static void +i4bisppp_tlf(struct sppp *sp) +{ + struct i4bisppp_softc *sc = (struct i4bisppp_softc *)sp; +/* call_desc_t *cd = sc->sc_cdp; */ + struct ifnet *ifp = (struct ifnet *)sp; + + if(sc->sc_state != ST_CONNECTED) + return; + +#if 0 /* never used ??? */ + UNTIMEOUT(i4bisppp_timeout, (void *)sp, sc->sc_ch); +#endif + + i4b_l4_drvrdisc(BDRV_ISPPP, IFP2UNIT(ifp)); +} +/*---------------------------------------------------------------------------* + * PPP interface phase change + *---------------------------------------------------------------------------* + */ +static void +i4bisppp_state_changed(struct sppp *sp, int new_state) +{ + struct i4bisppp_softc *sc = (struct i4bisppp_softc *)sp; + + i4b_l4_ifstate_changed(sc->sc_cdp, new_state); +} + +/*---------------------------------------------------------------------------* + * PPP control protocol negotiation complete (run ip-up script now) + *---------------------------------------------------------------------------* + */ +static void +i4bisppp_negotiation_complete(struct sppp *sp) +{ + struct i4bisppp_softc *sc = (struct i4bisppp_softc *)sp; + + i4b_l4_negcomplete(sc->sc_cdp); +} + +/*===========================================================================* + * ISDN INTERFACE ROUTINES + *===========================================================================*/ + +/*---------------------------------------------------------------------------* + * this routine is called from L4 handler at connect time + *---------------------------------------------------------------------------*/ +static void +i4bisppp_connect(int unit, void *cdp) +{ + struct i4bisppp_softc *sc = &i4bisppp_softc[unit]; + struct sppp *sp = &sc->sc_if_un.scu_sp; + int s = splimp(); + + sc->sc_cdp = (call_desc_t *)cdp; + sc->sc_state = ST_CONNECTED; + +#if I4BISPPPACCT + sc->sc_iinb = 0; + sc->sc_ioutb = 0; + sc->sc_inb = 0; + sc->sc_outb = 0; + sc->sc_linb = 0; + sc->sc_loutb = 0; + sc->sc_if.if_timer = I4BISPPPACCTINTVL; +#endif + +#if 0 /* never used ??? */ + UNTIMEOUT(i4bisppp_timeout, (void *)sp, sc->sc_ch); +#endif + + sp->pp_up(sp); /* tell PPP we are ready */ + + splx(s); +} + +/*---------------------------------------------------------------------------* + * this routine is called from L4 handler at disconnect time + *---------------------------------------------------------------------------*/ +static void +i4bisppp_disconnect(int unit, void *cdp) +{ + call_desc_t *cd = (call_desc_t *)cdp; + struct i4bisppp_softc *sc = &i4bisppp_softc[unit]; + struct sppp *sp = &sc->sc_if_un.scu_sp; + + int s = splimp(); + + /* new stuff to check that the active channel is being closed */ + if (cd != sc->sc_cdp) + { +#ifdef I4BISPPPDISCDEBUG + printf("i4bisppp_disconnect: isppp%d channel%d not active\n", + cd->driver_unit, cd->channelid); +#endif + 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) +{ +/* struct i4bisppp_softc *sc = &i4bisppp_softc[unit]; */ +} + +/*---------------------------------------------------------------------------* + * 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++; + sc->sc_if.if_ibytes += m->m_pkthdr.len; + +#if I4BISPPPACCT + sc->sc_inb += m->m_pkthdr.len; +#endif + +#ifdef I4BISPPPDEBUG + printf("i4bisppp_rx_data_ready: received packet!\n"); +#endif + +#if NBPFILTER > 0 + +#ifdef __FreeBSD__ + if(sc->sc_if.if_bpf) + bpf_mtap(&sc->sc_if, m); +#endif /* __FreeBSD__ */ + +#ifdef __NetBSD__ + if(sc->sc_if.if_bpf) + bpf_mtap(sc->sc_if.if_bpf, m); +#endif + +#endif /* NBPFILTER > 0 */ + + 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 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; +} + +/*===========================================================================*/ |