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/* $NetBSD: if_ieee1394subr.c,v 1.48 2014/11/28 08:29:00 ozaki-r Exp $ */
/*
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Atsushi Onoe.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_ieee1394subr.c,v 1.48 2014/11/28 08:29:00 ozaki-r Exp $");
#include "opt_inet.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/select.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_ieee1394.h>
#include <net/if_types.h>
#include <net/if_media.h>
#include <net/ethertypes.h>
#include <net/netisr.h>
#include <net/route.h>
#include <net/bpf.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <netinet/if_inarp.h>
#endif /* INET */
#ifdef INET6
#include <netinet/in.h>
#include <netinet6/in6_var.h>
#include <netinet6/nd6.h>
#endif /* INET6 */
#include <dev/ieee1394/firewire.h>
#include <dev/ieee1394/firewirereg.h>
#include <dev/ieee1394/iec13213.h>
#include <dev/ieee1394/if_fwipvar.h>
#define IEEE1394_REASS_TIMEOUT 3 /* 3 sec */
#define senderr(e) do { error = (e); goto bad; } while(0/*CONSTCOND*/)
static int ieee1394_output(struct ifnet *, struct mbuf *,
const struct sockaddr *, struct rtentry *);
static struct mbuf *ieee1394_reass(struct ifnet *, struct mbuf *, uint16_t);
static int
ieee1394_output(struct ifnet *ifp, struct mbuf *m0, const struct sockaddr *dst,
struct rtentry *rt0)
{
uint16_t etype = 0;
struct mbuf *m;
int s, hdrlen, error = 0;
struct rtentry *rt;
struct mbuf *mcopy = NULL;
struct ieee1394_hwaddr *hwdst, baddr;
const struct ieee1394_hwaddr *myaddr;
ALTQ_DECL(struct altq_pktattr pktattr;)
#ifdef INET
struct arphdr *ah;
#endif /* INET */
struct m_tag *mtag;
int unicast;
if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
senderr(ENETDOWN);
if ((rt = rt0) != NULL) {
if ((rt->rt_flags & RTF_UP) == 0) {
if ((rt0 = rt = rtalloc1(dst, 1)) != NULL) {
rt->rt_refcnt--;
if (rt->rt_ifp != ifp)
return (*rt->rt_ifp->if_output)
(ifp, m0, dst, rt);
} else
senderr(EHOSTUNREACH);
}
if (rt->rt_flags & RTF_GATEWAY) {
if (rt->rt_gwroute == NULL)
goto lookup;
if (((rt = rt->rt_gwroute)->rt_flags & RTF_UP) == 0) {
rtfree(rt);
rt = rt0;
lookup:
rt->rt_gwroute = rtalloc1(rt->rt_gateway, 1);
if ((rt = rt->rt_gwroute) == NULL)
senderr(EHOSTUNREACH);
/* the "G" test below also prevents rt == rt0 */
if ((rt->rt_flags & RTF_GATEWAY) ||
(rt->rt_ifp != ifp)) {
rt->rt_refcnt--;
rt0->rt_gwroute = NULL;
senderr(EHOSTUNREACH);
}
}
}
if (rt->rt_flags & RTF_REJECT)
if (rt->rt_rmx.rmx_expire == 0 ||
time_second < rt->rt_rmx.rmx_expire)
senderr(rt == rt0 ? EHOSTDOWN : EHOSTUNREACH);
}
/*
* If the queueing discipline needs packet classification,
* do it before prepending link headers.
*/
IFQ_CLASSIFY(&ifp->if_snd, m0, dst->sa_family, &pktattr);
/*
* For unicast, we make a tag to store the lladdr of the
* destination. This might not be the first time we have seen
* the packet (for instance, the arp code might be trying to
* re-send it after receiving an arp reply) so we only
* allocate a tag if there isn't one there already. For
* multicast, we will eventually use a different tag to store
* the channel number.
*/
unicast = !(m0->m_flags & (M_BCAST | M_MCAST));
if (unicast) {
mtag =
m_tag_find(m0, MTAG_FIREWIRE_HWADDR, NULL);
if (!mtag) {
mtag = m_tag_get(MTAG_FIREWIRE_HWADDR,
sizeof (struct ieee1394_hwaddr), M_NOWAIT);
if (!mtag) {
error = ENOMEM;
goto bad;
}
m_tag_prepend(m0, mtag);
}
hwdst = (struct ieee1394_hwaddr *)(mtag + 1);
} else {
hwdst = &baddr;
}
switch (dst->sa_family) {
#ifdef INET
case AF_INET:
if (unicast && (!arpresolve(ifp, rt, m0, dst, (u_char *)hwdst)))
return 0; /* if not yet resolved */
/* if broadcasting on a simplex interface, loopback a copy */
if ((m0->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX))
mcopy = m_copy(m0, 0, M_COPYALL);
etype = htons(ETHERTYPE_IP);
break;
case AF_ARP:
ah = mtod(m0, struct arphdr *);
ah->ar_hrd = htons(ARPHRD_IEEE1394);
etype = htons(ETHERTYPE_ARP);
break;
#endif /* INET */
#ifdef INET6
case AF_INET6:
if (unicast && (!nd6_storelladdr(ifp, rt, m0, dst,
hwdst->iha_uid, IEEE1394_ADDR_LEN))) {
/* something bad happened */
return 0;
}
etype = htons(ETHERTYPE_IPV6);
break;
#endif /* INET6 */
case pseudo_AF_HDRCMPLT:
case AF_UNSPEC:
/* TODO? */
default:
printf("%s: can't handle af%d\n", ifp->if_xname,
dst->sa_family);
senderr(EAFNOSUPPORT);
break;
}
if (mcopy)
looutput(ifp, mcopy, dst, rt);
myaddr = (const struct ieee1394_hwaddr *)CLLADDR(ifp->if_sadl);
if (ifp->if_bpf) {
struct ieee1394_bpfhdr h;
if (unicast)
memcpy(h.ibh_dhost, hwdst->iha_uid, 8);
else
memcpy(h.ibh_dhost,
((const struct ieee1394_hwaddr *)
ifp->if_broadcastaddr)->iha_uid, 8);
memcpy(h.ibh_shost, myaddr->iha_uid, 8);
h.ibh_type = etype;
bpf_mtap2(ifp->if_bpf, &h, sizeof(h), m0);
}
if ((ifp->if_flags & IFF_SIMPLEX) &&
unicast &&
memcmp(hwdst, myaddr, IEEE1394_ADDR_LEN) == 0)
return looutput(ifp, m0, dst, rt);
/*
* XXX:
* The maximum possible rate depends on the topology.
* So the determination of maxrec and fragmentation should be
* called from the driver after probing the topology map.
*/
if (unicast) {
hdrlen = IEEE1394_GASP_LEN;
hwdst->iha_speed = 0; /* XXX */
} else
hdrlen = 0;
if (hwdst->iha_speed > myaddr->iha_speed)
hwdst->iha_speed = myaddr->iha_speed;
if (hwdst->iha_maxrec > myaddr->iha_maxrec)
hwdst->iha_maxrec = myaddr->iha_maxrec;
if (hwdst->iha_maxrec > (8 + hwdst->iha_speed))
hwdst->iha_maxrec = 8 + hwdst->iha_speed;
if (hwdst->iha_maxrec < 8)
hwdst->iha_maxrec = 8;
m0 = ieee1394_fragment(ifp, m0, (2<<hwdst->iha_maxrec) - hdrlen, etype);
if (m0 == NULL)
senderr(ENOBUFS);
s = splnet();
ifp->if_obytes += m0->m_pkthdr.len;
if (m0->m_flags & M_MCAST)
ifp->if_omcasts++;
while ((m = m0) != NULL) {
m0 = m->m_nextpkt;
if (m == NULL) {
splx(s);
senderr(ENOBUFS);
}
IFQ_ENQUEUE(&ifp->if_snd, m, &pktattr, error);
if (error) {
/* mbuf is already freed */
splx(s);
goto bad;
}
}
if ((ifp->if_flags & IFF_OACTIVE) == 0)
(*ifp->if_start)(ifp);
splx(s);
return 0;
bad:
while (m0 != NULL) {
m = m0->m_nextpkt;
m_freem(m0);
m0 = m;
}
return error;
}
struct mbuf *
ieee1394_fragment(struct ifnet *ifp, struct mbuf *m0, int maxsize,
uint16_t etype)
{
struct ieee1394com *ic = (struct ieee1394com *)ifp;
int totlen, fraglen, off;
struct mbuf *m, **mp;
struct ieee1394_fraghdr *ifh;
struct ieee1394_unfraghdr *iuh;
totlen = m0->m_pkthdr.len;
if (totlen + sizeof(struct ieee1394_unfraghdr) <= maxsize) {
M_PREPEND(m0, sizeof(struct ieee1394_unfraghdr), M_DONTWAIT);
if (m0 == NULL)
goto bad;
iuh = mtod(m0, struct ieee1394_unfraghdr *);
iuh->iuh_ft = 0;
iuh->iuh_etype = etype;
return m0;
}
fraglen = maxsize - sizeof(struct ieee1394_fraghdr);
M_PREPEND(m0, sizeof(struct ieee1394_fraghdr), M_DONTWAIT);
if (m0 == NULL)
goto bad;
ifh = mtod(m0, struct ieee1394_fraghdr *);
ifh->ifh_ft_size = htons(IEEE1394_FT_MORE | (totlen - 1));
ifh->ifh_etype_off = etype;
ifh->ifh_dgl = htons(ic->ic_dgl);
ifh->ifh_reserved = 0;
off = fraglen;
mp = &m0->m_nextpkt;
while (off < totlen) {
if (off + fraglen > totlen)
fraglen = totlen - off;
MGETHDR(m, M_DONTWAIT, MT_HEADER);
if (m == NULL)
goto bad;
m->m_flags |= m0->m_flags & (M_BCAST|M_MCAST); /* copy bcast */
MH_ALIGN(m, sizeof(struct ieee1394_fraghdr));
m->m_len = sizeof(struct ieee1394_fraghdr);
ifh = mtod(m, struct ieee1394_fraghdr *);
ifh->ifh_ft_size =
htons(IEEE1394_FT_SUBSEQ | IEEE1394_FT_MORE | (totlen - 1));
ifh->ifh_etype_off = htons(off);
ifh->ifh_dgl = htons(ic->ic_dgl);
ifh->ifh_reserved = 0;
m->m_next = m_copy(m0, sizeof(*ifh) + off, fraglen);
if (m->m_next == NULL)
goto bad;
m->m_pkthdr.len = sizeof(*ifh) + fraglen;
off += fraglen;
*mp = m;
mp = &m->m_nextpkt;
}
ifh->ifh_ft_size &= ~htons(IEEE1394_FT_MORE); /* last fragment */
m_adj(m0, -(m0->m_pkthdr.len - maxsize));
ic->ic_dgl++;
return m0;
bad:
while ((m = m0) != NULL) {
m0 = m->m_nextpkt;
m->m_nextpkt = NULL;
m_freem(m);
}
return NULL;
}
void
ieee1394_input(struct ifnet *ifp, struct mbuf *m, uint16_t src)
{
pktqueue_t *pktq = NULL;
struct ifqueue *inq;
uint16_t etype;
int s;
struct ieee1394_unfraghdr *iuh;
int isr = 0;
if ((ifp->if_flags & IFF_UP) == 0) {
m_freem(m);
return;
}
if (m->m_len < sizeof(*iuh)) {
if ((m = m_pullup(m, sizeof(*iuh))) == NULL)
return;
}
iuh = mtod(m, struct ieee1394_unfraghdr *);
if (ntohs(iuh->iuh_ft) & (IEEE1394_FT_SUBSEQ | IEEE1394_FT_MORE)) {
if ((m = ieee1394_reass(ifp, m, src)) == NULL)
return;
iuh = mtod(m, struct ieee1394_unfraghdr *);
}
etype = ntohs(iuh->iuh_etype);
/* strip off the ieee1394 header */
m_adj(m, sizeof(*iuh));
if (ifp->if_bpf) {
struct ieee1394_bpfhdr h;
struct m_tag *mtag;
const struct ieee1394_hwaddr *myaddr;
mtag = m_tag_find(m, MTAG_FIREWIRE_SENDER_EUID, 0);
if (mtag)
memcpy(h.ibh_shost, mtag + 1, 8);
else
memset(h.ibh_shost, 0, 8);
if (m->m_flags & M_BCAST)
memcpy(h.ibh_dhost,
((const struct ieee1394_hwaddr *)
ifp->if_broadcastaddr)->iha_uid, 8);
else {
myaddr =
(const struct ieee1394_hwaddr *)CLLADDR(ifp->if_sadl);
memcpy(h.ibh_dhost, myaddr->iha_uid, 8);
}
h.ibh_type = htons(etype);
bpf_mtap2(ifp->if_bpf, &h, sizeof(h), m);
}
switch (etype) {
#ifdef INET
case ETHERTYPE_IP:
pktq = ip_pktq;
break;
case ETHERTYPE_ARP:
isr = NETISR_ARP;
inq = &arpintrq;
break;
#endif /* INET */
#ifdef INET6
case ETHERTYPE_IPV6:
pktq = ip6_pktq;
break;
#endif /* INET6 */
default:
m_freem(m);
return;
}
if (__predict_true(pktq)) {
if (__predict_false(!pktq_enqueue(pktq, m, 0))) {
m_freem(m);
}
return;
}
s = splnet();
if (IF_QFULL(inq)) {
IF_DROP(inq);
m_freem(m);
} else {
IF_ENQUEUE(inq, m);
schednetisr(isr);
}
splx(s);
}
static struct mbuf *
ieee1394_reass(struct ifnet *ifp, struct mbuf *m0, uint16_t src)
{
struct ieee1394com *ic = (struct ieee1394com *)ifp;
struct ieee1394_fraghdr *ifh;
struct ieee1394_unfraghdr *iuh;
struct ieee1394_reassq *rq;
struct ieee1394_reass_pkt *rp, *trp, *nrp = NULL;
int len;
uint16_t etype, off, ftype, size, dgl;
uint32_t id;
if (m0->m_len < sizeof(*ifh)) {
if ((m0 = m_pullup(m0, sizeof(*ifh))) == NULL)
return NULL;
}
ifh = mtod(m0, struct ieee1394_fraghdr *);
m_adj(m0, sizeof(*ifh));
size = ntohs(ifh->ifh_ft_size);
ftype = size & (IEEE1394_FT_SUBSEQ | IEEE1394_FT_MORE);
size = (size & ~ftype) + 1;
dgl = ntohs(ifh->ifh_dgl);
len = m0->m_pkthdr.len;
id = dgl | (src << 16);
if (ftype & IEEE1394_FT_SUBSEQ) {
m_tag_delete_chain(m0, NULL);
m0->m_flags &= ~M_PKTHDR;
etype = 0;
off = ntohs(ifh->ifh_etype_off);
} else {
etype = ifh->ifh_etype_off;
off = 0;
}
for (rq = LIST_FIRST(&ic->ic_reassq); ; rq = LIST_NEXT(rq, rq_node)) {
if (rq == NULL) {
/*
* Create a new reassemble queue head for the node.
*/
rq = malloc(sizeof(*rq), M_FTABLE, M_NOWAIT);
if (rq == NULL) {
m_freem(m0);
return NULL;
}
rq->fr_id = id;
LIST_INIT(&rq->rq_pkt);
LIST_INSERT_HEAD(&ic->ic_reassq, rq, rq_node);
break;
}
if (rq->fr_id == id)
break;
}
for (rp = LIST_FIRST(&rq->rq_pkt); rp != NULL; rp = nrp) {
nrp = LIST_NEXT(rp, rp_next);
if (rp->rp_dgl != dgl)
continue;
/*
* sanity check:
* datagram size must be same for all fragments, and
* no overlap is allowed.
*/
if (rp->rp_size != size ||
(off < rp->rp_off + rp->rp_len && off + len > rp->rp_off)) {
/*
* This happens probably due to wrapping dgl value.
* Destroy all previously received fragment and
* enqueue current fragment.
*/
for (rp = LIST_FIRST(&rq->rq_pkt); rp != NULL;
rp = nrp) {
nrp = LIST_NEXT(rp, rp_next);
if (rp->rp_dgl == dgl) {
LIST_REMOVE(rp, rp_next);
m_freem(rp->rp_m);
free(rp, M_FTABLE);
}
}
break;
}
if (rp->rp_off + rp->rp_len == off) {
/*
* All the subsequent fragments received in sequence
* come here.
* Concatinate mbuf to previous one instead of
* allocating new reassemble queue structure,
* and try to merge more with the subsequent fragment
* in the queue.
*/
m_cat(rp->rp_m, m0);
rp->rp_len += len;
while (rp->rp_off + rp->rp_len < size &&
nrp != NULL && nrp->rp_dgl == dgl &&
nrp->rp_off == rp->rp_off + rp->rp_len) {
LIST_REMOVE(nrp, rp_next);
m_cat(rp->rp_m, nrp->rp_m);
rp->rp_len += nrp->rp_len;
free(nrp, M_FTABLE);
nrp = LIST_NEXT(rp, rp_next);
}
m0 = NULL; /* mark merged */
break;
}
if (off + m0->m_pkthdr.len == rp->rp_off) {
m_cat(m0, rp->rp_m);
rp->rp_m = m0;
rp->rp_off = off;
rp->rp_etype = etype; /* over writing trust etype */
rp->rp_len += len;
m0 = NULL; /* mark merged */
break;
}
if (rp->rp_off > off) {
/* insert before rp */
nrp = rp;
break;
}
if (nrp == NULL || nrp->rp_dgl != dgl) {
/* insert after rp */
nrp = NULL;
break;
}
}
if (m0 == NULL) {
if (rp->rp_off != 0 || rp->rp_len != size)
return NULL;
/* fragment done */
LIST_REMOVE(rp, rp_next);
m0 = rp->rp_m;
m0->m_pkthdr.len = rp->rp_len;
M_PREPEND(m0, sizeof(*iuh), M_DONTWAIT);
if (m0 != NULL) {
iuh = mtod(m0, struct ieee1394_unfraghdr *);
iuh->iuh_ft = 0;
iuh->iuh_etype = rp->rp_etype;
}
free(rp, M_FTABLE);
return m0;
}
/*
* New fragment received. Allocate reassemble queue structure.
*/
trp = malloc(sizeof(*trp), M_FTABLE, M_NOWAIT);
if (trp == NULL) {
m_freem(m0);
return NULL;
}
trp->rp_m = m0;
trp->rp_size = size;
trp->rp_etype = etype; /* valid only if off==0 */
trp->rp_off = off;
trp->rp_dgl = dgl;
trp->rp_len = len;
trp->rp_ttl = IEEE1394_REASS_TIMEOUT;
if (trp->rp_ttl <= ifp->if_timer)
trp->rp_ttl = ifp->if_timer + 1;
if (rp == NULL) {
/* first fragment for the dgl */
LIST_INSERT_HEAD(&rq->rq_pkt, trp, rp_next);
} else if (nrp == NULL) {
/* no next fragment for the dgl */
LIST_INSERT_AFTER(rp, trp, rp_next);
} else {
/* there is a hole */
LIST_INSERT_BEFORE(nrp, trp, rp_next);
}
return NULL;
}
void
ieee1394_drain(struct ifnet *ifp)
{
struct ieee1394com *ic = (struct ieee1394com *)ifp;
struct ieee1394_reassq *rq;
struct ieee1394_reass_pkt *rp;
while ((rq = LIST_FIRST(&ic->ic_reassq)) != NULL) {
LIST_REMOVE(rq, rq_node);
while ((rp = LIST_FIRST(&rq->rq_pkt)) != NULL) {
LIST_REMOVE(rp, rp_next);
m_freem(rp->rp_m);
free(rp, M_FTABLE);
}
free(rq, M_FTABLE);
}
}
void
ieee1394_watchdog(struct ifnet *ifp)
{
struct ieee1394com *ic = (struct ieee1394com *)ifp;
struct ieee1394_reassq *rq;
struct ieee1394_reass_pkt *rp, *nrp;
int dec;
dec = (ifp->if_timer > 0) ? ifp->if_timer : 1;
for (rq = LIST_FIRST(&ic->ic_reassq); rq != NULL;
rq = LIST_NEXT(rq, rq_node)) {
for (rp = LIST_FIRST(&rq->rq_pkt); rp != NULL; rp = nrp) {
nrp = LIST_NEXT(rp, rp_next);
if (rp->rp_ttl >= dec)
rp->rp_ttl -= dec;
else {
LIST_REMOVE(rp, rp_next);
m_freem(rp->rp_m);
free(rp, M_FTABLE);
}
}
}
}
const char *
ieee1394_sprintf(const uint8_t *laddr)
{
static char buf[3*8];
snprintf(buf, sizeof(buf), "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
laddr[0], laddr[1], laddr[2], laddr[3],
laddr[4], laddr[5], laddr[6], laddr[7]);
return buf;
}
void
ieee1394_ifattach(struct ifnet *ifp, const struct ieee1394_hwaddr *hwaddr)
{
struct ieee1394_hwaddr *baddr;
struct ieee1394com *ic = (struct ieee1394com *)ifp;
ifp->if_type = IFT_IEEE1394;
ifp->if_hdrlen = sizeof(struct ieee1394_header);
ifp->if_dlt = DLT_EN10MB; /* XXX */
ifp->if_mtu = IEEE1394MTU;
ifp->if_output = ieee1394_output;
ifp->if_drain = ieee1394_drain;
ifp->if_watchdog = ieee1394_watchdog;
ifp->if_timer = 1;
if (ifp->if_baudrate == 0)
ifp->if_baudrate = IF_Mbps(100);
if_set_sadl(ifp, hwaddr, sizeof(struct ieee1394_hwaddr), true);
baddr = malloc(ifp->if_addrlen, M_DEVBUF, M_WAITOK);
memset(baddr->iha_uid, 0xff, IEEE1394_ADDR_LEN);
baddr->iha_speed = 0; /*XXX: how to determine the speed for bcast? */
baddr->iha_maxrec = 512 << baddr->iha_speed;
memset(baddr->iha_offset, 0, sizeof(baddr->iha_offset));
ifp->if_broadcastaddr = (uint8_t *)baddr;
LIST_INIT(&ic->ic_reassq);
bpf_attach(ifp, DLT_APPLE_IP_OVER_IEEE1394,
sizeof(struct ieee1394_hwaddr));
}
void
ieee1394_ifdetach(struct ifnet *ifp)
{
ieee1394_drain(ifp);
bpf_detach(ifp);
free(__UNCONST(ifp->if_broadcastaddr), M_DEVBUF);
ifp->if_broadcastaddr = NULL;
}
int
ieee1394_ioctl(struct ifnet *ifp, u_long cmd, void *data)
{
struct ifreq *ifr = (struct ifreq *)data;
struct ifaddr *ifa = (struct ifaddr *)data;
int error = 0;
switch (cmd) {
case SIOCINITIFADDR:
ifp->if_flags |= IFF_UP;
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
if ((error = (*ifp->if_init)(ifp)) != 0)
break;
arp_ifinit(ifp, ifa);
break;
#endif /* INET */
default:
error = (*ifp->if_init)(ifp);
break;
}
break;
case SIOCSIFMTU:
if (ifr->ifr_mtu > IEEE1394MTU)
error = EINVAL;
else if ((error = ifioctl_common(ifp, cmd, data)) == ENETRESET)
error = 0;
break;
default:
error = ifioctl_common(ifp, cmd, data);
break;
}
return error;
}
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