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/*-
* Copyright (c) 2000 Brian Somers <brian@Awfulhak.org>
* 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/mbuf.h>
#include <sys/random.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/time.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/netisr.h>
#include <net/intrq.h>
/*
* If the appropriate intrq_present variable is zero, don't use
* the queue (as it'll never get processed).
* Each of the active network stacks sets their own
* *intrq_present variable non-zero.
*/
int atintrq1_present;
int atintrq2_present;
int atmintrq_present;
int ipintrq_present;
int ip6intrq_present;
int ipxintrq_present;
int natmintrq_present;
int nsintrq_present;
struct ifqueue atintrq1;
struct ifqueue atintrq2;
struct ifqueue atm_intrq;
struct ifqueue ipintrq;
struct ifqueue ip6intrq;
struct ifqueue ipxintrq;
struct ifqueue natmintrq;
struct ifqueue nsintrq;
static const struct {
sa_family_t family;
struct ifqueue *q;
int const *present;
int isr;
} queue[] = {
{ AF_ATM, &atm_intrq, &atmintrq_present, NETISR_ATM },
{ AF_INET, &ipintrq, &ipintrq_present, NETISR_IP },
{ AF_INET6, &ip6intrq, &ip6intrq_present, NETISR_IPV6 },
{ AF_IPX, &ipxintrq, &ipxintrq_present, NETISR_IPX },
{ AF_NATM, &natmintrq, &natmintrq_present, NETISR_NATM },
{ AF_APPLETALK, &atintrq2, &atintrq2_present, NETISR_ATALK },
{ AF_NS, &nsintrq, &nsintrq_present, NETISR_NS }
};
int
family_enqueue(family, m)
sa_family_t family;
struct mbuf *m;
{
int entry;
for (entry = 0; entry < sizeof queue / sizeof queue[0]; entry++)
if (queue[entry].family == family) {
if (queue[entry].present) {
if (! IF_HANDOFF(queue[entry].q, m, NULL))
return ENOBUFS;
schednetisr(queue[entry].isr);
/* First chunk of an mbuf contains good junk */
if (harvest.point_to_point)
random_harvest(m, 16, 3, 0, RANDOM_NET);
return 0;
} else
break;
}
m_freem(m);
return EAFNOSUPPORT;
}
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