1994-05-24 10:09:53 +00:00
|
|
|
/*
|
|
|
|
* Copyright (c) 1982, 1986, 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. All advertising materials mentioning features or use of this software
|
|
|
|
* must display the following acknowledgement:
|
|
|
|
* This product includes software developed by the University of
|
|
|
|
* California, Berkeley and its contributors.
|
|
|
|
* 4. 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.
|
|
|
|
*
|
2001-10-17 10:44:39 +00:00
|
|
|
* @(#)if_loop.c 8.2 (Berkeley) 1/9/95
|
1999-08-28 01:08:13 +00:00
|
|
|
* $FreeBSD$
|
1994-05-24 10:09:53 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Loopback interface driver for protocol testing and timing.
|
|
|
|
*/
|
|
|
|
|
1998-01-09 00:51:57 +00:00
|
|
|
#include "opt_atalk.h"
|
1998-01-08 23:42:31 +00:00
|
|
|
#include "opt_inet.h"
|
1999-12-07 17:39:16 +00:00
|
|
|
#include "opt_inet6.h"
|
1997-12-15 20:31:25 +00:00
|
|
|
#include "opt_ipx.h"
|
2002-12-18 15:34:17 +00:00
|
|
|
#include "opt_mac.h"
|
1997-12-15 20:31:25 +00:00
|
|
|
|
1994-05-24 10:09:53 +00:00
|
|
|
#include <sys/param.h>
|
|
|
|
#include <sys/systm.h>
|
|
|
|
#include <sys/kernel.h>
|
2002-12-18 15:34:17 +00:00
|
|
|
#include <sys/mac.h>
|
2001-01-29 11:06:26 +00:00
|
|
|
#include <sys/malloc.h>
|
1994-05-24 10:09:53 +00:00
|
|
|
#include <sys/mbuf.h>
|
2001-01-31 07:58:58 +00:00
|
|
|
#include <sys/module.h>
|
2002-03-04 21:46:00 +00:00
|
|
|
#include <machine/bus.h>
|
|
|
|
#include <sys/rman.h>
|
1994-05-24 10:09:53 +00:00
|
|
|
#include <sys/socket.h>
|
1997-03-24 11:33:46 +00:00
|
|
|
#include <sys/sockio.h>
|
2001-01-29 11:06:26 +00:00
|
|
|
#include <sys/sysctl.h>
|
1994-05-24 10:09:53 +00:00
|
|
|
|
|
|
|
#include <net/if.h>
|
|
|
|
#include <net/if_types.h>
|
|
|
|
#include <net/netisr.h>
|
|
|
|
#include <net/route.h>
|
|
|
|
#include <net/bpf.h>
|
2001-06-11 12:39:29 +00:00
|
|
|
#include <net/bpfdesc.h>
|
1994-05-24 10:09:53 +00:00
|
|
|
|
|
|
|
#ifdef INET
|
|
|
|
#include <netinet/in.h>
|
|
|
|
#include <netinet/in_var.h>
|
|
|
|
#endif
|
|
|
|
|
1995-10-26 20:31:59 +00:00
|
|
|
#ifdef IPX
|
|
|
|
#include <netipx/ipx.h>
|
|
|
|
#include <netipx/ipx_if.h>
|
|
|
|
#endif
|
|
|
|
|
1999-11-22 02:45:11 +00:00
|
|
|
#ifdef INET6
|
|
|
|
#ifndef INET
|
|
|
|
#include <netinet/in.h>
|
|
|
|
#endif
|
|
|
|
#include <netinet6/in6_var.h>
|
2000-07-04 16:35:15 +00:00
|
|
|
#include <netinet/ip6.h>
|
1999-11-22 02:45:11 +00:00
|
|
|
#endif
|
|
|
|
|
1996-05-24 01:35:45 +00:00
|
|
|
#ifdef NETATALK
|
|
|
|
#include <netatalk/at.h>
|
|
|
|
#include <netatalk/at_var.h>
|
2001-09-10 01:33:03 +00:00
|
|
|
#endif
|
1996-05-24 01:35:45 +00:00
|
|
|
|
1994-05-29 07:43:54 +00:00
|
|
|
#ifdef TINY_LOMTU
|
1994-05-24 10:09:53 +00:00
|
|
|
#define LOMTU (1024+512)
|
1999-11-22 02:45:11 +00:00
|
|
|
#elif defined(LARGE_LOMTU)
|
|
|
|
#define LOMTU 131072
|
1994-05-29 07:43:54 +00:00
|
|
|
#else
|
1995-03-04 04:28:50 +00:00
|
|
|
#define LOMTU 16384
|
1994-05-29 07:43:54 +00:00
|
|
|
#endif
|
1994-05-24 10:09:53 +00:00
|
|
|
|
2002-03-04 21:46:00 +00:00
|
|
|
#define LONAME "lo"
|
2001-01-29 11:06:26 +00:00
|
|
|
|
|
|
|
struct lo_softc {
|
|
|
|
struct ifnet sc_if; /* network-visible interface */
|
2001-12-14 19:32:47 +00:00
|
|
|
LIST_ENTRY(lo_softc) sc_next;
|
2001-01-29 11:06:26 +00:00
|
|
|
};
|
2002-03-04 21:46:00 +00:00
|
|
|
|
|
|
|
int loioctl(struct ifnet *, u_long, caddr_t);
|
|
|
|
static void lortrequest(int, struct rtentry *, struct rt_addrinfo *);
|
|
|
|
int looutput(struct ifnet *ifp, struct mbuf *m,
|
|
|
|
struct sockaddr *dst, struct rtentry *rt);
|
2002-03-11 09:26:07 +00:00
|
|
|
int lo_clone_create(struct if_clone *, int);
|
2002-05-25 20:17:04 +00:00
|
|
|
void lo_clone_destroy(struct ifnet *);
|
2002-03-04 21:46:00 +00:00
|
|
|
|
|
|
|
struct ifnet *loif = NULL; /* Used externally */
|
|
|
|
|
|
|
|
static MALLOC_DEFINE(M_LO, LONAME, "Loopback Interface");
|
|
|
|
|
2001-01-29 11:06:26 +00:00
|
|
|
static LIST_HEAD(lo_list, lo_softc) lo_list;
|
|
|
|
|
2002-05-25 20:17:04 +00:00
|
|
|
struct if_clone lo_cloner = IF_CLONE_INITIALIZER(LONAME,
|
|
|
|
lo_clone_create, lo_clone_destroy, 1, IF_MAXUNIT);
|
2002-03-04 21:46:00 +00:00
|
|
|
|
2002-05-25 20:17:04 +00:00
|
|
|
void
|
2002-03-04 21:46:00 +00:00
|
|
|
lo_clone_destroy(ifp)
|
|
|
|
struct ifnet *ifp;
|
|
|
|
{
|
|
|
|
struct lo_softc *sc;
|
|
|
|
|
|
|
|
sc = ifp->if_softc;
|
|
|
|
|
2002-05-25 20:17:04 +00:00
|
|
|
/* XXX: destroying lo0 will lead to panics. */
|
|
|
|
KASSERT(loif != ifp, ("%s: destroying lo0", __func__));
|
2002-03-04 21:46:00 +00:00
|
|
|
|
|
|
|
bpfdetach(ifp);
|
|
|
|
if_detach(ifp);
|
|
|
|
LIST_REMOVE(sc, sc_next);
|
2002-04-04 06:03:17 +00:00
|
|
|
free(sc, M_LO);
|
2002-03-04 21:46:00 +00:00
|
|
|
}
|
|
|
|
|
2002-03-11 09:26:07 +00:00
|
|
|
int
|
|
|
|
lo_clone_create(ifc, unit)
|
|
|
|
struct if_clone *ifc;
|
|
|
|
int unit;
|
2001-01-29 11:06:26 +00:00
|
|
|
{
|
|
|
|
struct lo_softc *sc;
|
|
|
|
|
2003-02-19 05:47:46 +00:00
|
|
|
MALLOC(sc, struct lo_softc *, sizeof(*sc), M_LO, M_WAITOK | M_ZERO);
|
2001-01-29 11:06:26 +00:00
|
|
|
|
2002-03-04 21:46:00 +00:00
|
|
|
sc->sc_if.if_name = LONAME;
|
2001-01-29 11:06:26 +00:00
|
|
|
sc->sc_if.if_unit = unit;
|
|
|
|
sc->sc_if.if_mtu = LOMTU;
|
|
|
|
sc->sc_if.if_flags = IFF_LOOPBACK | IFF_MULTICAST;
|
|
|
|
sc->sc_if.if_ioctl = loioctl;
|
|
|
|
sc->sc_if.if_output = looutput;
|
|
|
|
sc->sc_if.if_type = IFT_LOOP;
|
|
|
|
sc->sc_if.if_snd.ifq_maxlen = ifqmaxlen;
|
2002-03-04 21:46:00 +00:00
|
|
|
sc->sc_if.if_softc = sc;
|
2001-01-29 11:06:26 +00:00
|
|
|
if_attach(&sc->sc_if);
|
|
|
|
bpfattach(&sc->sc_if, DLT_NULL, sizeof(u_int));
|
|
|
|
LIST_INSERT_HEAD(&lo_list, sc, sc_next);
|
|
|
|
if (loif == NULL)
|
|
|
|
loif = &sc->sc_if;
|
2002-03-11 09:26:07 +00:00
|
|
|
|
|
|
|
return (0);
|
2001-01-29 11:06:26 +00:00
|
|
|
}
|
|
|
|
|
2001-01-31 07:58:58 +00:00
|
|
|
static int
|
|
|
|
loop_modevent(module_t mod, int type, void *data)
|
|
|
|
{
|
|
|
|
switch (type) {
|
|
|
|
case MOD_LOAD:
|
2002-03-04 21:46:00 +00:00
|
|
|
LIST_INIT(&lo_list);
|
|
|
|
if_clone_attach(&lo_cloner);
|
2001-01-31 07:58:58 +00:00
|
|
|
break;
|
|
|
|
case MOD_UNLOAD:
|
|
|
|
printf("loop module unload - not possible for this module type\n");
|
|
|
|
return EINVAL;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static moduledata_t loop_mod = {
|
|
|
|
"loop",
|
|
|
|
loop_modevent,
|
|
|
|
0
|
|
|
|
};
|
|
|
|
|
2003-10-27 04:16:32 +00:00
|
|
|
DECLARE_MODULE(loop, loop_mod, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY);
|
1994-05-24 10:09:53 +00:00
|
|
|
|
1999-12-07 17:39:16 +00:00
|
|
|
int
|
1994-05-24 10:09:53 +00:00
|
|
|
looutput(ifp, m, dst, rt)
|
|
|
|
struct ifnet *ifp;
|
|
|
|
register struct mbuf *m;
|
|
|
|
struct sockaddr *dst;
|
|
|
|
register struct rtentry *rt;
|
1998-06-12 03:48:19 +00:00
|
|
|
{
|
2003-08-09 05:44:00 +00:00
|
|
|
#ifdef INET6
|
2003-05-28 02:04:33 +00:00
|
|
|
struct mbuf *n;
|
2003-08-09 05:44:00 +00:00
|
|
|
#endif
|
2003-04-08 14:25:47 +00:00
|
|
|
|
|
|
|
M_ASSERTPKTHDR(m); /* check if we have the packet header */
|
1998-06-12 03:48:19 +00:00
|
|
|
|
|
|
|
if (rt && rt->rt_flags & (RTF_REJECT|RTF_BLACKHOLE)) {
|
|
|
|
m_freem(m);
|
|
|
|
return (rt->rt_flags & RTF_BLACKHOLE ? 0 :
|
|
|
|
rt->rt_flags & RTF_HOST ? EHOSTUNREACH : ENETUNREACH);
|
|
|
|
}
|
2003-08-09 02:55:11 +00:00
|
|
|
#ifdef INET6
|
1999-11-22 02:45:11 +00:00
|
|
|
/*
|
|
|
|
* KAME requires that the packet to be contiguous on the
|
|
|
|
* mbuf. We need to make that sure.
|
|
|
|
* this kind of code should be avoided.
|
2003-05-28 02:04:33 +00:00
|
|
|
*
|
|
|
|
* XXX: KAME may no longer need contiguous packets. Once
|
|
|
|
* that has been verified, the following code _should_ be
|
|
|
|
* removed.
|
1999-11-22 02:45:11 +00:00
|
|
|
*/
|
2002-12-30 20:22:40 +00:00
|
|
|
|
2003-05-28 02:04:33 +00:00
|
|
|
if (m && m->m_next != NULL) {
|
|
|
|
|
|
|
|
n = m_defrag(m, M_DONTWAIT);
|
|
|
|
|
|
|
|
if (n == NULL) {
|
|
|
|
m_freem(m);
|
|
|
|
return (ENOBUFS);
|
|
|
|
} else {
|
|
|
|
m = n;
|
|
|
|
}
|
1999-11-22 02:45:11 +00:00
|
|
|
}
|
2003-08-09 02:55:11 +00:00
|
|
|
#endif
|
1999-11-22 02:45:11 +00:00
|
|
|
|
1998-06-12 03:48:19 +00:00
|
|
|
ifp->if_opackets++;
|
|
|
|
ifp->if_obytes += m->m_pkthdr.len;
|
1998-06-14 20:58:17 +00:00
|
|
|
#if 1 /* XXX */
|
|
|
|
switch (dst->sa_family) {
|
|
|
|
case AF_INET:
|
1999-11-22 02:45:11 +00:00
|
|
|
case AF_INET6:
|
1998-06-14 20:58:17 +00:00
|
|
|
case AF_IPX:
|
|
|
|
case AF_APPLETALK:
|
1998-06-14 23:53:43 +00:00
|
|
|
break;
|
1998-06-14 20:58:17 +00:00
|
|
|
default:
|
2000-09-04 21:46:27 +00:00
|
|
|
printf("looutput: af=%d unexpected\n", dst->sa_family);
|
1998-06-14 20:58:17 +00:00
|
|
|
m_freem(m);
|
|
|
|
return (EAFNOSUPPORT);
|
|
|
|
}
|
|
|
|
#endif
|
2000-05-24 21:16:56 +00:00
|
|
|
return(if_simloop(ifp, m, dst->sa_family, 0));
|
1998-06-12 03:48:19 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* if_simloop()
|
|
|
|
*
|
|
|
|
* This function is to support software emulation of hardware loopback,
|
|
|
|
* i.e., for interfaces with the IFF_SIMPLEX attribute. Since they can't
|
|
|
|
* hear their own broadcasts, we create a copy of the packet that we
|
|
|
|
* would normally receive via a hardware loopback.
|
|
|
|
*
|
|
|
|
* This function expects the packet to include the media header of length hlen.
|
|
|
|
*/
|
|
|
|
|
|
|
|
int
|
2000-05-24 21:16:56 +00:00
|
|
|
if_simloop(ifp, m, af, hlen)
|
1998-06-12 03:48:19 +00:00
|
|
|
struct ifnet *ifp;
|
2001-06-11 12:39:29 +00:00
|
|
|
struct mbuf *m;
|
2000-05-24 21:16:56 +00:00
|
|
|
int af;
|
1998-06-12 03:48:19 +00:00
|
|
|
int hlen;
|
1994-05-24 10:09:53 +00:00
|
|
|
{
|
Lock down the network interface queues. The queue mutex must be obtained
before adding/removing packets from the queue. Also, the if_obytes and
if_omcasts fields should only be manipulated under protection of the mutex.
IF_ENQUEUE, IF_PREPEND, and IF_DEQUEUE perform all necessary locking on
the queue. An IF_LOCK macro is provided, as well as the old (mutex-less)
versions of the macros in the form _IF_ENQUEUE, _IF_QFULL, for code which
needs them, but their use is discouraged.
Two new macros are introduced: IF_DRAIN() to drain a queue, and IF_HANDOFF,
which takes care of locking/enqueue, and also statistics updating/start
if necessary.
2000-11-25 07:35:38 +00:00
|
|
|
int isr;
|
1994-05-24 10:09:53 +00:00
|
|
|
|
2003-04-08 14:25:47 +00:00
|
|
|
M_ASSERTPKTHDR(m);
|
1998-06-12 03:48:19 +00:00
|
|
|
m->m_pkthdr.rcvif = ifp;
|
2000-05-24 21:16:56 +00:00
|
|
|
|
1995-09-22 17:57:48 +00:00
|
|
|
/* BPF write needs to be handled specially */
|
2000-05-24 21:16:56 +00:00
|
|
|
if (af == AF_UNSPEC) {
|
|
|
|
KASSERT(m->m_len >= sizeof(int), ("if_simloop: m_len"));
|
|
|
|
af = *(mtod(m, int *));
|
1995-09-22 17:57:48 +00:00
|
|
|
m->m_len -= sizeof(int);
|
|
|
|
m->m_pkthdr.len -= sizeof(int);
|
|
|
|
m->m_data += sizeof(int);
|
|
|
|
}
|
|
|
|
|
2000-05-24 21:16:56 +00:00
|
|
|
/* Let BPF see incoming packet */
|
1995-04-26 18:10:58 +00:00
|
|
|
if (ifp->if_bpf) {
|
1998-06-12 03:48:19 +00:00
|
|
|
struct mbuf m0, *n = m;
|
1994-05-24 10:09:53 +00:00
|
|
|
|
2001-06-11 12:39:29 +00:00
|
|
|
if (ifp->if_bpf->bif_dlt == DLT_NULL) {
|
|
|
|
/*
|
|
|
|
* We need to prepend the address family as
|
|
|
|
* a four byte field. Cons up a dummy header
|
|
|
|
* to pacify bpf. This is safe because bpf
|
|
|
|
* will only read from the mbuf (i.e., it won't
|
|
|
|
* try to free it or keep a pointer a to it).
|
|
|
|
*/
|
|
|
|
m0.m_next = m;
|
|
|
|
m0.m_len = 4;
|
|
|
|
m0.m_data = (char *)⁡
|
|
|
|
n = &m0;
|
|
|
|
}
|
2002-11-15 00:00:15 +00:00
|
|
|
BPF_MTAP(ifp, n);
|
1994-05-24 10:09:53 +00:00
|
|
|
}
|
|
|
|
|
1998-06-12 03:48:19 +00:00
|
|
|
/* Strip away media header */
|
1998-07-12 16:46:52 +00:00
|
|
|
if (hlen > 0) {
|
2000-05-26 13:47:02 +00:00
|
|
|
m_adj(m, hlen);
|
2001-12-29 08:45:17 +00:00
|
|
|
#if defined(__alpha__) || defined(__ia64__) || defined(__sparc64__)
|
1998-07-12 16:46:52 +00:00
|
|
|
/* The alpha doesn't like unaligned data.
|
|
|
|
* We move data down in the first mbuf */
|
2000-05-26 13:47:02 +00:00
|
|
|
if (mtod(m, vm_offset_t) & 3) {
|
2000-06-02 19:06:33 +00:00
|
|
|
KASSERT(hlen >= 3, ("if_simloop: hlen too small"));
|
2000-05-26 13:47:02 +00:00
|
|
|
bcopy(m->m_data,
|
|
|
|
(char *)(mtod(m, vm_offset_t)
|
|
|
|
- (mtod(m, vm_offset_t) & 3)),
|
|
|
|
m->m_len);
|
|
|
|
mtod(m,vm_offset_t) -= (mtod(m, vm_offset_t) & 3);
|
|
|
|
}
|
1998-07-12 16:46:52 +00:00
|
|
|
#endif
|
|
|
|
}
|
1994-05-24 10:09:53 +00:00
|
|
|
|
2000-05-24 21:16:56 +00:00
|
|
|
/* Deliver to upper layer protocol */
|
|
|
|
switch (af) {
|
1994-05-24 10:09:53 +00:00
|
|
|
#ifdef INET
|
|
|
|
case AF_INET:
|
|
|
|
isr = NETISR_IP;
|
|
|
|
break;
|
|
|
|
#endif
|
1999-11-22 02:45:11 +00:00
|
|
|
#ifdef INET6
|
|
|
|
case AF_INET6:
|
|
|
|
m->m_flags |= M_LOOP;
|
|
|
|
isr = NETISR_IPV6;
|
|
|
|
break;
|
|
|
|
#endif
|
1995-10-26 20:31:59 +00:00
|
|
|
#ifdef IPX
|
|
|
|
case AF_IPX:
|
|
|
|
isr = NETISR_IPX;
|
|
|
|
break;
|
|
|
|
#endif
|
1996-05-24 01:35:45 +00:00
|
|
|
#ifdef NETATALK
|
|
|
|
case AF_APPLETALK:
|
2003-03-04 23:19:55 +00:00
|
|
|
isr = NETISR_ATALK2;
|
1996-05-24 01:35:45 +00:00
|
|
|
break;
|
2001-09-10 01:33:03 +00:00
|
|
|
#endif
|
1994-05-24 10:09:53 +00:00
|
|
|
default:
|
2000-05-24 21:16:56 +00:00
|
|
|
printf("if_simloop: can't handle af=%d\n", af);
|
1994-05-24 10:09:53 +00:00
|
|
|
m_freem(m);
|
|
|
|
return (EAFNOSUPPORT);
|
|
|
|
}
|
|
|
|
ifp->if_ipackets++;
|
|
|
|
ifp->if_ibytes += m->m_pkthdr.len;
|
2003-03-04 23:19:55 +00:00
|
|
|
netisr_dispatch(isr, m);
|
1994-05-24 10:09:53 +00:00
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* ARGSUSED */
|
1995-12-09 20:47:15 +00:00
|
|
|
static void
|
2001-10-17 18:07:05 +00:00
|
|
|
lortrequest(cmd, rt, info)
|
1994-05-24 10:09:53 +00:00
|
|
|
int cmd;
|
|
|
|
struct rtentry *rt;
|
2001-10-17 18:07:05 +00:00
|
|
|
struct rt_addrinfo *info;
|
1994-05-24 10:09:53 +00:00
|
|
|
{
|
2003-10-04 03:44:50 +00:00
|
|
|
RT_LOCK_ASSERT(rt);
|
|
|
|
|
1996-02-05 19:34:27 +00:00
|
|
|
if (rt) {
|
|
|
|
rt->rt_rmx.rmx_mtu = rt->rt_ifp->if_mtu; /* for ISO */
|
|
|
|
/*
|
|
|
|
* For optimal performance, the send and receive buffers
|
|
|
|
* should be at least twice the MTU plus a little more for
|
|
|
|
* overhead.
|
|
|
|
*/
|
1999-11-22 02:45:11 +00:00
|
|
|
rt->rt_rmx.rmx_recvpipe =
|
1996-02-05 19:34:27 +00:00
|
|
|
rt->rt_rmx.rmx_sendpipe = 3 * LOMTU;
|
|
|
|
}
|
1994-05-24 10:09:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Process an ioctl request.
|
|
|
|
*/
|
|
|
|
/* ARGSUSED */
|
1999-12-07 17:39:16 +00:00
|
|
|
int
|
1994-05-24 10:09:53 +00:00
|
|
|
loioctl(ifp, cmd, data)
|
|
|
|
register struct ifnet *ifp;
|
1998-06-07 17:13:14 +00:00
|
|
|
u_long cmd;
|
1994-05-24 10:09:53 +00:00
|
|
|
caddr_t data;
|
|
|
|
{
|
|
|
|
register struct ifaddr *ifa;
|
1994-08-08 12:09:04 +00:00
|
|
|
register struct ifreq *ifr = (struct ifreq *)data;
|
1994-05-24 10:09:53 +00:00
|
|
|
register int error = 0;
|
|
|
|
|
|
|
|
switch (cmd) {
|
|
|
|
|
|
|
|
case SIOCSIFADDR:
|
1996-06-19 16:24:10 +00:00
|
|
|
ifp->if_flags |= IFF_UP | IFF_RUNNING;
|
1994-05-24 10:09:53 +00:00
|
|
|
ifa = (struct ifaddr *)data;
|
1996-02-05 19:34:27 +00:00
|
|
|
ifa->ifa_rtrequest = lortrequest;
|
1994-05-24 10:09:53 +00:00
|
|
|
/*
|
|
|
|
* Everything else is done at a higher level.
|
|
|
|
*/
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SIOCADDMULTI:
|
|
|
|
case SIOCDELMULTI:
|
|
|
|
if (ifr == 0) {
|
|
|
|
error = EAFNOSUPPORT; /* XXX */
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
switch (ifr->ifr_addr.sa_family) {
|
|
|
|
|
|
|
|
#ifdef INET
|
|
|
|
case AF_INET:
|
|
|
|
break;
|
|
|
|
#endif
|
1999-11-22 02:45:11 +00:00
|
|
|
#ifdef INET6
|
|
|
|
case AF_INET6:
|
|
|
|
break;
|
|
|
|
#endif
|
1994-05-24 10:09:53 +00:00
|
|
|
|
|
|
|
default:
|
|
|
|
error = EAFNOSUPPORT;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
1994-08-08 12:09:04 +00:00
|
|
|
case SIOCSIFMTU:
|
1999-08-06 16:46:29 +00:00
|
|
|
ifp->if_mtu = ifr->ifr_mtu;
|
1994-08-08 12:09:04 +00:00
|
|
|
break;
|
|
|
|
|
1998-04-30 19:37:00 +00:00
|
|
|
case SIOCSIFFLAGS:
|
|
|
|
break;
|
|
|
|
|
1994-05-24 10:09:53 +00:00
|
|
|
default:
|
|
|
|
error = EINVAL;
|
|
|
|
}
|
|
|
|
return (error);
|
|
|
|
}
|