391 lines
8.7 KiB
C
391 lines
8.7 KiB
C
/*-
|
||
* Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
|
||
* 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. The name of the author may not be used to endorse or promote products
|
||
* derived from this software withough specific prior written permission
|
||
*
|
||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
|
||
*
|
||
* $Id: pdq_ifsubr.c,v 1.6 1998/01/08 23:40:28 eivind Exp $
|
||
*
|
||
*/
|
||
|
||
/*
|
||
* DEC PDQ FDDI Controller; code for BSD derived operating systems
|
||
*
|
||
* This module provide bus independent BSD specific O/S functions.
|
||
* (ie. it provides an ifnet interface to the rest of the system)
|
||
*/
|
||
|
||
|
||
#include "opt_inet.h"
|
||
|
||
#include <sys/param.h>
|
||
#include <sys/socket.h>
|
||
#include <sys/sockio.h>
|
||
#if defined(__bsdi__) || defined(__NetBSD__)
|
||
#include <sys/device.h>
|
||
#endif
|
||
|
||
#include <net/if.h>
|
||
#include <net/if_dl.h>
|
||
|
||
#include "bpfilter.h"
|
||
#if NBPFILTER > 0
|
||
#include <net/bpf.h>
|
||
#endif
|
||
|
||
#if defined(__FreeBSD__)
|
||
#ifdef INET
|
||
#include <netinet/in.h>
|
||
#include <netinet/if_ether.h>
|
||
#endif
|
||
#include <netinet/if_fddi.h>
|
||
#else
|
||
#include <net/if_fddi.h>
|
||
#endif
|
||
|
||
#if defined(__bsdi__)
|
||
#include <i386/isa/isavar.h>
|
||
#endif
|
||
|
||
#ifdef NS
|
||
#include <netns/ns.h>
|
||
#include <netns/ns_if.h>
|
||
#endif
|
||
|
||
#if defined(__FreeBSD__)
|
||
#include <dev/pdq/pdqvar.h>
|
||
#include <dev/pdq/pdqreg.h>
|
||
#else
|
||
#include "pdqvar.h"
|
||
#include "pdqreg.h"
|
||
#endif
|
||
|
||
#if defined(__bsdi__) && _BSDI_VERSION < 199506 /* XXX */
|
||
static void
|
||
arp_ifinit(
|
||
struct arpcom *ac,
|
||
struct ifaddr *ifa)
|
||
{
|
||
sc->sc_ac.ac_ipaddr = IA_SIN(ifa)->sin_addr;
|
||
arpwhohas(&sc->sc_ac, &IA_SIN(ifa)->sin_addr);
|
||
#if _BSDI_VERSION >= 199401
|
||
ifa->ifa_rtrequest = arp_rtrequest;
|
||
ifa->ifa_flags |= RTF_CLONING;
|
||
#endif
|
||
#endif
|
||
|
||
|
||
void
|
||
pdq_ifinit(
|
||
pdq_softc_t *sc)
|
||
{
|
||
if (sc->sc_if.if_flags & IFF_UP) {
|
||
sc->sc_if.if_flags |= IFF_RUNNING;
|
||
if (sc->sc_if.if_flags & IFF_PROMISC) {
|
||
sc->sc_pdq->pdq_flags |= PDQ_PROMISC;
|
||
} else {
|
||
sc->sc_pdq->pdq_flags &= ~PDQ_PROMISC;
|
||
}
|
||
if (sc->sc_if.if_flags & IFF_ALLMULTI) {
|
||
sc->sc_pdq->pdq_flags |= PDQ_ALLMULTI;
|
||
} else {
|
||
sc->sc_pdq->pdq_flags &= ~PDQ_ALLMULTI;
|
||
}
|
||
if (sc->sc_if.if_flags & IFF_LINK1) {
|
||
sc->sc_pdq->pdq_flags |= PDQ_PASS_SMT;
|
||
} else {
|
||
sc->sc_pdq->pdq_flags &= ~PDQ_PASS_SMT;
|
||
}
|
||
sc->sc_pdq->pdq_flags |= PDQ_RUNNING;
|
||
pdq_run(sc->sc_pdq);
|
||
} else {
|
||
sc->sc_if.if_flags &= ~IFF_RUNNING;
|
||
sc->sc_pdq->pdq_flags &= ~PDQ_RUNNING;
|
||
pdq_stop(sc->sc_pdq);
|
||
}
|
||
}
|
||
|
||
void
|
||
pdq_ifwatchdog(
|
||
struct ifnet *ifp)
|
||
{
|
||
/*
|
||
* No progress was made on the transmit queue for PDQ_OS_TX_TRANSMIT
|
||
* seconds. Remove all queued packets.
|
||
*/
|
||
|
||
ifp->if_flags &= ~IFF_OACTIVE;
|
||
ifp->if_timer = 0;
|
||
for (;;) {
|
||
struct mbuf *m;
|
||
IF_DEQUEUE(&ifp->if_snd, m);
|
||
if (m == NULL)
|
||
return;
|
||
m_freem(m);
|
||
}
|
||
}
|
||
|
||
ifnet_ret_t
|
||
pdq_ifstart(
|
||
struct ifnet *ifp)
|
||
{
|
||
pdq_softc_t *sc = (pdq_softc_t *) ((caddr_t) ifp - offsetof(pdq_softc_t, sc_ac.ac_if));
|
||
struct ifqueue *ifq = &ifp->if_snd;
|
||
struct mbuf *m;
|
||
int tx = 0;
|
||
|
||
if ((ifp->if_flags & IFF_RUNNING) == 0)
|
||
return;
|
||
|
||
if (sc->sc_if.if_timer == 0)
|
||
sc->sc_if.if_timer = PDQ_OS_TX_TIMEOUT;
|
||
|
||
if ((sc->sc_pdq->pdq_flags & PDQ_TXOK) == 0) {
|
||
sc->sc_if.if_flags |= IFF_OACTIVE;
|
||
return;
|
||
}
|
||
for (;; tx = 1) {
|
||
IF_DEQUEUE(ifq, m);
|
||
if (m == NULL)
|
||
break;
|
||
|
||
if (pdq_queue_transmit_data(sc->sc_pdq, m) == PDQ_FALSE) {
|
||
ifp->if_flags |= IFF_OACTIVE;
|
||
IF_PREPEND(ifq, m);
|
||
break;
|
||
}
|
||
}
|
||
if (tx)
|
||
PDQ_DO_TYPE2_PRODUCER(sc->sc_pdq);
|
||
}
|
||
|
||
void
|
||
pdq_os_receive_pdu(
|
||
pdq_t *pdq,
|
||
struct mbuf *m,
|
||
size_t pktlen)
|
||
{
|
||
pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx;
|
||
struct fddi_header *fh = mtod(m, struct fddi_header *);
|
||
|
||
sc->sc_if.if_ipackets++;
|
||
#if NBPFILTER > 0
|
||
if (sc->sc_bpf != NULL)
|
||
PDQ_BPF_MTAP(sc, m);
|
||
if ((fh->fddi_fc & (FDDIFC_L|FDDIFC_F)) != FDDIFC_LLC_ASYNC) {
|
||
m_freem(m);
|
||
return;
|
||
}
|
||
#endif
|
||
|
||
m->m_data += sizeof(struct fddi_header);
|
||
m->m_len -= sizeof(struct fddi_header);
|
||
m->m_pkthdr.len = pktlen - sizeof(struct fddi_header);
|
||
m->m_pkthdr.rcvif = &sc->sc_if;
|
||
fddi_input(&sc->sc_if, fh, m);
|
||
}
|
||
|
||
void
|
||
pdq_os_restart_transmitter(
|
||
pdq_t *pdq)
|
||
{
|
||
pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx;
|
||
sc->sc_if.if_flags &= ~IFF_OACTIVE;
|
||
if (sc->sc_if.if_snd.ifq_head != NULL) {
|
||
sc->sc_if.if_timer = PDQ_OS_TX_TIMEOUT;
|
||
pdq_ifstart(&sc->sc_if);
|
||
} else {
|
||
sc->sc_if.if_timer = 0;
|
||
}
|
||
}
|
||
|
||
void
|
||
pdq_os_transmit_done(
|
||
pdq_t *pdq,
|
||
struct mbuf *m)
|
||
{
|
||
pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx;
|
||
#if NBPFILTER > 0
|
||
if (sc->sc_bpf != NULL)
|
||
PDQ_BPF_MTAP(sc, m);
|
||
#endif
|
||
m_freem(m);
|
||
sc->sc_if.if_opackets++;
|
||
}
|
||
|
||
void
|
||
pdq_os_addr_fill(
|
||
pdq_t *pdq,
|
||
pdq_lanaddr_t *addr,
|
||
size_t num_addrs)
|
||
{
|
||
pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx;
|
||
struct ifmultiaddr *ifma;
|
||
|
||
for (ifma = sc->sc_if.if_multiaddrs.lh_first; ifma && num_addrs > 0;
|
||
ifma = ifma->ifma_link.le_next) {
|
||
char *mcaddr;
|
||
if (ifma->ifma_addr->sa_family != AF_LINK)
|
||
continue;
|
||
mcaddr = LLADDR((struct sockaddr_dl *)ifma->ifma_addr);
|
||
((u_short *) addr->lanaddr_bytes)[0] = ((u_short *) mcaddr)[0];
|
||
((u_short *) addr->lanaddr_bytes)[1] = ((u_short *) mcaddr)[1];
|
||
((u_short *) addr->lanaddr_bytes)[2] = ((u_short *) mcaddr)[2];
|
||
addr++;
|
||
num_addrs--;
|
||
}
|
||
}
|
||
|
||
int
|
||
pdq_ifioctl(
|
||
struct ifnet *ifp,
|
||
ioctl_cmd_t cmd,
|
||
caddr_t data)
|
||
{
|
||
pdq_softc_t *sc = (pdq_softc_t *) ((caddr_t) ifp - offsetof(pdq_softc_t, sc_ac.ac_if));
|
||
int s, error = 0;
|
||
|
||
s = splimp();
|
||
|
||
switch (cmd) {
|
||
case SIOCSIFADDR: {
|
||
struct ifaddr *ifa = (struct ifaddr *)data;
|
||
|
||
ifp->if_flags |= IFF_UP;
|
||
switch(ifa->ifa_addr->sa_family) {
|
||
#if defined(INET)
|
||
case AF_INET: {
|
||
pdq_ifinit(sc);
|
||
arp_ifinit(&sc->sc_ac, ifa);
|
||
break;
|
||
}
|
||
#endif /* INET */
|
||
|
||
#if defined(NS)
|
||
/* This magic copied from if_is.c; I don't use XNS,
|
||
* so I have no way of telling if this actually
|
||
* works or not.
|
||
*/
|
||
case AF_NS: {
|
||
struct ns_addr *ina = &(IA_SNS(ifa)->sns_addr);
|
||
if (ns_nullhost(*ina)) {
|
||
ina->x_host = *(union ns_host *)(sc->sc_ac.ac_enaddr);
|
||
} else {
|
||
ifp->if_flags &= ~IFF_RUNNING;
|
||
bcopy((caddr_t)ina->x_host.c_host,
|
||
(caddr_t)sc->sc_ac.ac_enaddr,
|
||
sizeof sc->sc_ac.ac_enaddr);
|
||
}
|
||
|
||
pdq_ifinit(sc);
|
||
break;
|
||
}
|
||
#endif /* NS */
|
||
|
||
default: {
|
||
pdq_ifinit(sc);
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
case SIOCGIFADDR: {
|
||
struct ifreq *ifr = (struct ifreq *)data;
|
||
bcopy((caddr_t) sc->sc_ac.ac_enaddr,
|
||
(caddr_t) ((struct sockaddr *)&ifr->ifr_data)->sa_data,
|
||
6);
|
||
break;
|
||
}
|
||
|
||
case SIOCSIFFLAGS: {
|
||
pdq_ifinit(sc);
|
||
break;
|
||
}
|
||
|
||
case SIOCADDMULTI:
|
||
case SIOCDELMULTI:
|
||
/*
|
||
* Update multicast listeners
|
||
*/
|
||
if (sc->sc_if.if_flags & IFF_RUNNING)
|
||
pdq_run(sc->sc_pdq);
|
||
error = 0;
|
||
break;
|
||
|
||
#if defined(SIOCSIFMTU)
|
||
#if !defined(ifr_mtu)
|
||
#define ifr_mtu ifr_metric
|
||
#endif
|
||
case SIOCSIFMTU: {
|
||
struct ifreq *ifr = (struct ifreq *)data;
|
||
/*
|
||
* Set the interface MTU.
|
||
*/
|
||
if (ifr->ifr_mtu > FDDIMTU) {
|
||
error = EINVAL;
|
||
break;
|
||
}
|
||
ifp->if_mtu = ifr->ifr_mtu;
|
||
break;
|
||
}
|
||
#endif /* SIOCSIFMTU */
|
||
|
||
default: {
|
||
error = EINVAL;
|
||
break;
|
||
}
|
||
}
|
||
|
||
splx(s);
|
||
return error;
|
||
}
|
||
|
||
#ifndef IFF_NOTRAILERS
|
||
#define IFF_NOTRAILERS 0
|
||
#endif
|
||
|
||
void
|
||
pdq_ifattach(
|
||
pdq_softc_t *sc,
|
||
ifnet_ret_t (*ifwatchdog)(int unit))
|
||
{
|
||
struct ifnet *ifp = &sc->sc_if;
|
||
|
||
ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST;
|
||
|
||
#if (defined(__FreeBSD__) && BSD >= 199506) || defined(__NetBSD__)
|
||
ifp->if_watchdog = pdq_ifwatchdog;
|
||
#else
|
||
ifp->if_watchdog = ifwatchdog;
|
||
#endif
|
||
|
||
ifp->if_ioctl = pdq_ifioctl;
|
||
ifp->if_output = fddi_output;
|
||
ifp->if_start = pdq_ifstart;
|
||
#warning "Implement fddi_resolvemulti!"
|
||
/* ifp->if_resolvemulti = ether_resolvemulti; XXX */
|
||
|
||
if_attach(ifp);
|
||
fddi_ifattach(ifp);
|
||
#if NBPFILTER > 0
|
||
PDQ_BPFATTACH(sc, DLT_FDDI, sizeof(struct fddi_header));
|
||
#endif
|
||
}
|