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NetBSD/sys/netiso/if_eon.c
dyoung de87fe677d *** Summary *** 
When a link-layer address changes (e.g., ifconfig ex0 link
02🇩🇪ad:be:ef:02 active), send a gratuitous ARP and/or a Neighbor
Advertisement to update the network-/link-layer address bindings
on our LAN peers.

Refuse a change of ethernet address to the address 00:00:00:00:00:00
or to any multicast/broadcast address.  (Thanks matt@.)

Reorder ifnet ioctl operations so that driver ioctls may inherit
the functions of their "class"---ether_ioctl(), fddi_ioctl(), et
cetera---and the class ioctls may inherit from the generic ioctl,
ifioctl_common(), but both driver- and class-ioctls may override
the generic behavior.  Make network drivers share more code.

Distinguish a "factory" link-layer address from others for the
purposes of both protecting that address from deletion and computing
EUI64.

Return consistent, appropriate error codes from network drivers.

Improve readability.  KNF.

*** Details ***

In if_attach(), always initialize the interface ioctl routine,
ifnet->if_ioctl, if the driver has not already initialized it.
Delete if_ioctl == NULL tests everywhere else, because it cannot
happen.

In the ioctl routines of network interfaces, inherit common ioctl
behaviors by calling either ifioctl_common() or whichever ioctl
routine is appropriate for the class of interface---e.g., ether_ioctl()
for ethernets.

Stop (ab)using SIOCSIFADDR and start to use SIOCINITIFADDR.  In
the user->kernel interface, SIOCSIFADDR's argument was an ifreq,
but on the protocol->ifnet interface, SIOCSIFADDR's argument was
an ifaddr.  That was confusing, and it would work against me as I
make it possible for a network interface to overload most ioctls.
On the protocol->ifnet interface, replace SIOCSIFADDR with
SIOCINITIFADDR.  In ifioctl(), return EPERM if userland tries to
invoke SIOCINITIFADDR.

In ifioctl(), give the interface the first shot at handling most
interface ioctls, and give the protocol the second shot, instead
of the other way around. Finally, let compatibility code (COMPAT_OSOCK)
take a shot.

Pull device initialization out of switch statements under
SIOCINITIFADDR.  For example, pull ..._init() out of any switch
statement that looks like this:

        switch (...->sa_family) {
        case ...:
                ..._init();
                ...
                break;
        ...
        default:
                ..._init();
                ...
                break;
        }

Rewrite many if-else clauses that handle all permutations of IFF_UP
and IFF_RUNNING to use a switch statement,

        switch (x & (IFF_UP|IFF_RUNNING)) {
        case 0:
                ...
                break;
        case IFF_RUNNING:
                ...
                break;
        case IFF_UP:
                ...
                break;
        case IFF_UP|IFF_RUNNING:
                ...
                break;
        }

unifdef lots of code containing #ifdef FreeBSD, #ifdef NetBSD, and
#ifdef SIOCSIFMTU, especially in fwip(4) and in ndis(4).

In ipw(4), remove an if_set_sadl() call that is out of place.

In nfe(4), reuse the jumbo MTU logic in ether_ioctl().

Let ethernets register a callback for setting h/w state such as
promiscuous mode and the multicast filter in accord with a change
in the if_flags: ether_set_ifflags_cb() registers a callback that
returns ENETRESET if the caller should reset the ethernet by calling
if_init(), 0 on success, != 0 on failure.  Pull common code from
ex(4), gem(4), nfe(4), sip(4), tlp(4), vge(4) into ether_ioctl(),
and register if_flags callbacks for those drivers.

Return ENOTTY instead of EINVAL for inappropriate ioctls.  In
zyd(4), use ENXIO instead of ENOTTY to indicate that the device is
not any longer attached.

Add to if_set_sadl() a boolean 'factory' argument that indicates
whether a link-layer address was assigned by the factory or some
other source.  In a comment, recommend using the factory address
for generating an EUI64, and update in6_get_hw_ifid() to prefer a
factory address to any other link-layer address.

Add a routing message, RTM_LLINFO_UPD, that tells protocols to
update the binding of network-layer addresses to link-layer addresses.
Implement this message in IPv4 and IPv6 by sending a gratuitous
ARP or a neighbor advertisement, respectively.  Generate RTM_LLINFO_UPD
messages on a change of an interface's link-layer address.

In ether_ioctl(), do not let SIOCALIFADDR set a link-layer address
that is broadcast/multicast or equal to 00:00:00:00:00:00.

Make ether_ioctl() call ifioctl_common() to handle ioctls that it
does not understand.

In gif(4), initialize if_softc and use it, instead of assuming that
the gif_softc and ifp overlap.

Let ifioctl_common() handle SIOCGIFADDR.

Sprinkle rtcache_invariants(), which checks on DIAGNOSTIC kernels
that certain invariants on a struct route are satisfied.

In agr(4), rewrite agr_ioctl_filter() to be a bit more explicit
about the ioctls that we do not allow on an agr(4) member interface.

bzero -> memset.  Delete unnecessary casts to void *.  Use
sockaddr_in_init() and sockaddr_in6_init().  Compare pointers with
NULL instead of "testing truth".  Replace some instances of (type
*)0 with NULL.  Change some K&R prototypes to ANSI C, and join
lines.
2008-11-07 00:20:01 +00:00

628 lines
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/* $NetBSD: if_eon.c,v 1.69 2008/11/07 00:20:18 dyoung Exp $ */
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)if_eon.c 8.2 (Berkeley) 1/9/95
*/
/***********************************************************
Copyright IBM Corporation 1987
All Rights Reserved
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the name of IBM not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.
******************************************************************/
/*
* ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
*/
/*
* EON rfc
* Layer between IP and CLNL
*
* TODO:
* Put together a current rfc986 address format and get the right offset
* for the nsel
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_eon.c,v 1.69 2008/11/07 00:20:18 dyoung Exp $");
#include "opt_eon.h"
#ifdef EON
#define NEON 1
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/buf.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/cpu.h> /* XXX for setsoftnet(). This must die. */
#include <net/if.h>
#include <net/if_types.h>
#include <net/if_dl.h>
#include <net/netisr.h>
#include <net/route.h>
#include <net/if_ether.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/ip_var.h>
#include <netiso/iso.h>
#include <netiso/iso_var.h>
#include <netiso/iso_snpac.h>
#include <netiso/argo_debug.h>
#include <netiso/iso_errno.h>
#include <netiso/eonvar.h>
#include <machine/stdarg.h>
#define EOK 0
struct ifnet eonif[1];
void
eonprotoinit(void)
{
(void) eonattach();
}
struct eon_llinfo eon_llinfo;
#define PROBE_OK 0;
/*
* FUNCTION: eonattach
*
* PURPOSE: autoconf attach routine
*
* RETURNS: void
*/
void
eonattach(void)
{
struct ifnet *ifp = eonif;
#ifdef ARGO_DEBUG
if (argo_debug[D_EON]) {
printf("eonattach()\n");
}
#endif
snprintf(ifp->if_xname, sizeof(ifp->if_xname), "eon%d", 0);
ifp->if_mtu = ETHERMTU;
ifp->if_softc = NULL;
/* since everything will go out over ether or token ring */
ifp->if_ioctl = eonioctl;
ifp->if_output = eonoutput;
ifp->if_type = IFT_EON;
ifp->if_addrlen = 0;
ifp->if_hdrlen = EONIPLEN;
ifp->if_flags = IFF_BROADCAST;
if_attach(ifp);
if_alloc_sadl(ifp);
eonioctl(ifp, SIOCINITIFADDR, ifp->if_dl);
eon_llinfo.el_qhdr.link =
eon_llinfo.el_qhdr.rlink = &(eon_llinfo.el_qhdr);
#ifdef ARGO_DEBUG
if (argo_debug[D_EON]) {
printf("eonattach()\n");
}
#endif
}
/*
* FUNCTION: eonioctl
*
* PURPOSE: io controls - ifconfig
* need commands to
* link-UP (core addr) (flags: ES, IS)
* link-DOWN (core addr) (flags: ES, IS)
* must be callable from kernel or user
*
* RETURNS: nothing
*/
int
eonioctl(struct ifnet *ifp, u_long cmd, void *data)
{
struct ifaddr *ifa = data;
int error = 0, s = splnet();
#ifdef ARGO_DEBUG
if (argo_debug[D_EON]) {
printf("eonioctl (cmd 0x%lx) \n", cmd);
}
#endif
switch (cmd) {
case SIOCINITIFADDR:
if (ifa == NULL)
break;
ifp->if_flags |= IFF_UP;
if (ifa->ifa_addr->sa_family != AF_LINK)
ifa->ifa_rtrequest = eonrtrequest;
break;
default:
error = ifioctl_common(ifp, cmd, data);
break;
}
splx(s);
return (error);
}
void
eoniphdr(struct eon_iphdr *hdr, const void *loc, struct route *ro, int class)
{
struct rtentry *rt;
struct mbuf mhead;
union {
struct sockaddr dst;
struct sockaddr_in dst4;
} u;
struct in_addr addr;
(void)memcpy(&addr, loc, sizeof(addr));
sockaddr_in_init(&u.dst4, &addr, 0);
rtcache_setdst(ro, &u.dst);
if ((rt = rtcache_init(ro)) != NULL)
rt->rt_use++;
hdr->ei_ip.ip_dst = u.dst4.sin_addr;
hdr->ei_ip.ip_p = IPPROTO_EON;
hdr->ei_ip.ip_ttl = MAXTTL;
hdr->ei_eh.eonh_class = class;
hdr->ei_eh.eonh_vers = EON_VERSION;
hdr->ei_eh.eonh_csum = 0;
mhead.m_data = (void *)&hdr->ei_eh;
mhead.m_len = sizeof(struct eon_hdr);
mhead.m_next = NULL;
#ifdef ARGO_DEBUG
if (argo_debug[D_EON]) {
printf("eonoutput : gen csum (%p, offset %lu, datalen %ld)\n",
&mhead, (unsigned long)offsetof(struct eon_hdr, eonh_csum),
(long)sizeof(struct eon_hdr));
}
#endif
iso_gen_csum(&mhead,
offsetof(struct eon_hdr, eonh_csum), sizeof(struct eon_hdr));
}
/*
* FUNCTION: eonrtrequest
*
* PURPOSE: maintains list of direct eon recipients.
* sets up IP route for rest.
*
* RETURNS: nothing
*/
void
eonrtrequest(int cmd, struct rtentry *rt, const struct rt_addrinfo *info)
{
struct rtentry *nrt;
unsigned long zerodst = 0;
const void *ipaddrloc = &zerodst;
struct eon_llinfo *el = (struct eon_llinfo *) rt->rt_llinfo;
const struct sockaddr *gate;
/*
* Common Housekeeping
*/
switch (cmd) {
case RTM_DELETE:
if (el) {
iso_remque(&el->el_qhdr);
rtcache_free(&el->el_iproute);
Free(el);
rt->rt_llinfo = NULL;
}
return;
case RTM_ADD:
case RTM_RESOLVE:
rt->rt_rmx.rmx_mtu = lo0ifp->if_mtu; /* unless better below */
R_Malloc(el, struct eon_llinfo *, sizeof(*el));
rt->rt_llinfo = (void *) el;
if (el == NULL)
return;
memset(el, 0, sizeof(*el));
iso_insque(&el->el_qhdr, &eon_llinfo.el_qhdr);
el->el_rt = rt;
break;
}
if (info != NULL &&
(gate = info->rti_info[RTAX_GATEWAY]) != NULL) { /*XXX*/
switch (gate->sa_family) {
case AF_LINK:
if (satocsdl(gate)->sdl_alen == 1)
el->el_snpaoffset = *(const u_char *)CLLADDR(satocsdl(gate));
else
ipaddrloc = CLLADDR(satocsdl(gate));
break;
case AF_INET:
ipaddrloc = &satocsin(gate)->sin_addr;
break;
default:
return;
}
}
el->el_flags |= RTF_UP;
eoniphdr(&el->el_ei, ipaddrloc, &el->el_iproute, EON_NORMAL_ADDR);
if ((nrt = rtcache_validate(&el->el_iproute)) != NULL)
rt->rt_rmx.rmx_mtu = nrt->rt_rmx.rmx_mtu - sizeof(el->el_ei);
}
/*
* FUNCTION: eonoutput
*
* PURPOSE: prepend an eon header and hand to IP
* ARGUMENTS: (ifp) is points to the ifnet structure for this
* unit/device (m) is an mbuf *, *m is a CLNL packet
* (dst) is a destination address - have to interp. as
* multicast or broadcast or real address.
*
* RETURNS: unix error code
*
* NOTES:
*
*/
int
eonoutput(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *sdst,
struct rtentry *rt)
{
const struct sockaddr_iso *dst = (const struct sockaddr_iso *)sdst;
struct eon_llinfo *el;
struct eon_iphdr *ei;
struct route *ro;
int datalen;
struct mbuf *mh;
int error = 0, class = 0, alen = 0;
const u_char *ipaddrloc = NULL;
static struct eon_iphdr eon_iphdr;
static struct route route;
#ifdef ARGO_DEBUG
if (argo_debug[D_EON]) {
printf("eonoutput \n");
}
#endif
ifp->if_opackets++;
if (rt == NULL || (el = (struct eon_llinfo *)rt->rt_llinfo) == NULL) {
if (dst->siso_family == AF_LINK) {
const struct sockaddr_dl *sdl = satocsdl(dst);
ipaddrloc = CLLADDR(sdl);
alen = sdl->sdl_alen;
} else if (dst->siso_family == AF_ISO &&
dst->siso_data[0] == AFI_SNA) {
alen = dst->siso_nlen - 1;
ipaddrloc = (const char *)dst->siso_data + 1;
}
switch (alen) {
case 5:
class = ipaddrloc[4];
case 4:
ro = &route;
ei = &eon_iphdr;
memset(ei, 0, sizeof(*ei));
eoniphdr(ei, ipaddrloc, ro, class);
goto send;
}
einval:
error = EINVAL;
goto flush;
}
if ((el->el_flags & RTF_UP) == 0) {
eonrtrequest(RTM_CHANGE, rt, NULL);
if ((el->el_flags & RTF_UP) == 0) {
error = EHOSTUNREACH;
goto flush;
}
}
if ((m->m_flags & M_PKTHDR) == 0) {
printf("eon: got non headered packet\n");
goto einval;
}
ei = &el->el_ei;
ro = &el->el_iproute;
if (el->el_snpaoffset == 0)
;
else if (dst->siso_family == AF_ISO) {
memcpy(&ei->ei_ip.ip_dst, &dst->siso_data[el->el_snpaoffset],
sizeof(ei->ei_ip.ip_dst));
} else
goto einval;
send:
/* put an eon_hdr in the buffer, prepended by an ip header */
datalen = m->m_pkthdr.len + EONIPLEN;
if (datalen > IP_MAXPACKET) {
error = EMSGSIZE;
goto flush;
}
MGETHDR(mh, M_DONTWAIT, MT_HEADER);
if (mh == NULL) {
error = ENOBUFS;
goto flush;
}
mh->m_next = m;
m = mh;
MH_ALIGN(m, sizeof(struct eon_iphdr));
m->m_len = sizeof(struct eon_iphdr);
m->m_pkthdr.len = datalen;
ei->ei_ip.ip_len = htons(datalen);
ifp->if_obytes += datalen;
*mtod(m, struct eon_iphdr *) = *ei;
#ifdef ARGO_DEBUG
if (argo_debug[D_EON]) {
printf("eonoutput dst ip addr : %x\n", ei->ei_ip.ip_dst.s_addr);
printf("eonoutput ip_output : eonip header:\n");
dump_buf(ei, sizeof(struct eon_iphdr));
}
#endif
error = ip_output(m, NULL, ro, 0, NULL, NULL);
m = NULL;
if (error) {
ifp->if_oerrors++;
ifp->if_opackets--;
ifp->if_obytes -= datalen;
}
flush:
if (m != NULL)
m_freem(m);
return error;
}
/*
* Strip out IP options, at higher
* level protocol in the kernel.
*/
static void
ip_stripoptions(struct mbuf *m)
{
struct ip *ip = mtod(m, struct ip *);
void *opts;
size_t olen;
olen = (ip->ip_hl << 2) - sizeof(struct ip);
opts = (void *)(ip + 1);
ip->ip_len = htons(ntohs(ip->ip_len) - olen);
ip->ip_hl = sizeof(struct ip) >> 2;
memmove((char *)ip + olen, ip, (size_t)olen);
m_adj(m, olen);
}
void
eoninput(struct mbuf *m, ...)
{
int iphlen;
struct eon_hdr *eonhdr;
struct ip *iphdr;
struct ifnet *eonifp;
int s;
va_list ap;
va_start(ap, m);
iphlen = va_arg(ap, int);
va_end(ap);
eonifp = &eonif[0]; /* kludge - really want to give CLNP the ifp
* for eon, not for the real device */
#ifdef ARGO_DEBUG
if (argo_debug[D_EON]) {
printf("eoninput() %p m_data %p m_len 0x%x dequeued\n",
m, (m ? m->m_data : 0), m ? m->m_len : 0);
}
#endif
if (m == NULL)
return;
if (iphlen > sizeof(struct ip))
ip_stripoptions(m);
if (m->m_len < EONIPLEN) {
if ((m = m_pullup(m, EONIPLEN)) == NULL) {
IncStat(es_badhdr);
drop:
#ifdef ARGO_DEBUG
if (argo_debug[D_EON]) {
printf("eoninput: DROP \n");
}
#endif
eonifp->if_ierrors++;
m_freem(m);
return;
}
}
eonif->if_ibytes += m->m_pkthdr.len;
iphdr = mtod(m, struct ip *);
/* do a few checks for debugging */
if (iphdr->ip_p != IPPROTO_EON) {
IncStat(es_badhdr);
goto drop;
}
/* temporarily drop ip header from the mbuf */
m->m_data += sizeof(struct ip);
eonhdr = mtod(m, struct eon_hdr *);
if (iso_check_csum(m, sizeof(struct eon_hdr)) != EOK) {
IncStat(es_badcsum);
goto drop;
}
m->m_data -= sizeof(struct ip);
#ifdef ARGO_DEBUG
if (argo_debug[D_EON]) {
printf("eoninput csum ok class 0x%x\n", eonhdr->eonh_class);
printf("eoninput: eon header:\n");
dump_buf(eonhdr, sizeof(struct eon_hdr));
}
#endif
/* checks for debugging */
if (eonhdr->eonh_vers != EON_VERSION) {
IncStat(es_badhdr);
goto drop;
}
m->m_flags &= ~(M_BCAST | M_MCAST);
switch (eonhdr->eonh_class) {
case EON_BROADCAST:
IncStat(es_in_broad);
m->m_flags |= M_BCAST;
break;
case EON_NORMAL_ADDR:
IncStat(es_in_normal);
break;
case EON_MULTICAST_ES:
IncStat(es_in_multi_es);
m->m_flags |= M_MCAST;
break;
case EON_MULTICAST_IS:
IncStat(es_in_multi_is);
m->m_flags |= M_MCAST;
break;
}
eonifp->if_ipackets++;
{
/* put it on the CLNP queue and set soft interrupt */
struct ifqueue *ifq;
extern struct ifqueue clnlintrq;
m->m_pkthdr.rcvif = eonifp; /* KLUDGE */
#ifdef ARGO_DEBUG
if (argo_debug[D_EON]) {
printf("eoninput to clnl IFQ\n");
}
#endif
ifq = &clnlintrq;
s = splnet();
if (IF_QFULL(ifq)) {
IF_DROP(ifq);
m_freem(m);
eonifp->if_iqdrops++;
eonifp->if_ipackets--;
splx(s);
return;
}
IF_ENQUEUE(ifq, m);
#ifdef ARGO_DEBUG
if (argo_debug[D_EON]) {
printf(
"%p enqueued on clnp Q: m_len 0x%x m_type 0x%x m_data %p\n",
m, m->m_len, m->m_type, m->m_data);
dump_buf(mtod(m, void *), m->m_len);
}
#endif
schednetisr(NETISR_ISO);
splx(s);
}
}
void *
eonctlinput(int cmd, const struct sockaddr *sa, void *dummy)
{
const struct sockaddr_in *sin = (const struct sockaddr_in *)sa;
#ifdef ARGO_DEBUG
if (argo_debug[D_EON]) {
printf("eonctlinput: cmd 0x%x addr: ", cmd);
dump_isoaddr((const struct sockaddr_iso *)sin);
printf("\n");
}
#endif
if ((unsigned)cmd >= PRC_NCMDS)
return NULL;
IncStat(es_icmp[cmd]);
switch (cmd) {
case PRC_QUENCH:
case PRC_QUENCH2:
/* TODO: set the dec bit */
break;
case PRC_TIMXCEED_REASS:
case PRC_ROUTEDEAD:
case PRC_HOSTUNREACH:
case PRC_UNREACH_NET:
case PRC_IFDOWN:
case PRC_UNREACH_HOST:
case PRC_HOSTDEAD:
case PRC_TIMXCEED_INTRANS:
/* TODO: mark the link down */
break;
case PRC_UNREACH_PROTOCOL:
case PRC_UNREACH_PORT:
case PRC_UNREACH_SRCFAIL:
case PRC_REDIRECT_NET:
case PRC_REDIRECT_HOST:
case PRC_REDIRECT_TOSNET:
case PRC_REDIRECT_TOSHOST:
case PRC_MSGSIZE:
case PRC_PARAMPROB:
#if 0
printf("eonctlinput: ICMP cmd 0x%x\n", cmd );
#endif
break;
}
return NULL;
}
#endif
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