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/*
* 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.
*
* @(#)uipc_domain.c 8.2 (Berkeley) 10/18/93
* $Id$
*/
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/protosw.h>
#include <sys/domain.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/systm.h>
/*
* System initialization
*
* Note: domain initialization wants to take place on a per domain basis
* as a result of traversing a linker set. Most likely, each domain
* want to call a registration function rather than being handled here
* in domaininit(). Probably this will look like:
*
* SYSINIT(unique, SI_SUB_PROTO_DOMAI, SI_ORDER_ANY, domain_add, xxx)
*
* Where 'xxx' is replaced by the address of a parameter struct to be
* passed to the doamin_add() function.
*/
static int x_save_spl; /* used by kludge*/
static void kludge_splimp __P((void *));
static void kludge_splx __P((void *));
static void domaininit __P((void *));
SYSINIT(splimp, SI_SUB_PROTO_BEGIN, SI_ORDER_FIRST, kludge_splimp, &x_save_spl)
SYSINIT(domain, SI_SUB_PROTO_DOMAIN, SI_ORDER_FIRST, domaininit, NULL)
SYSINIT(splx, SI_SUB_PROTO_END, SI_ORDER_FIRST, kludge_splx, &x_save_spl)
static void pffasttimo __P((void *));
static void pfslowtimo __P((void *));
struct domain *domains;
#define ADDDOMAIN(x) { \
__CONCAT(x,domain.dom_next) = domains; \
domains = &__CONCAT(x,domain); \
}
extern struct linker_set domain_set;
/* ARGSUSED*/
static void
domaininit(dummy)
void *dummy;
{
register struct domain *dp, **dpp;
register struct protosw *pr;
/*
* NB - local domain is always present.
*/
ADDDOMAIN(local);
for (dpp = (struct domain **)domain_set.ls_items; *dpp; dpp++) {
(**dpp).dom_next = domains;
domains = *dpp;
}
/* - not in our sources
#ifdef ISDN
ADDDOMAIN(isdn);
#endif
*/
for (dp = domains; dp; dp = dp->dom_next) {
if (dp->dom_init)
(*dp->dom_init)();
for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++){
#ifdef PRU_OLDSTYLE
/* See comments in uipc_socket2.c. */
if (pr->pr_usrreqs == 0 && pr->pr_ousrreq)
pr->pr_usrreqs = &pru_oldstyle;
#endif
if (pr->pr_init)
(*pr->pr_init)();
}
}
if (max_linkhdr < 16) /* XXX */
max_linkhdr = 16;
max_hdr = max_linkhdr + max_protohdr;
max_datalen = MHLEN - max_hdr;
timeout(pffasttimo, (void *)0, 1);
timeout(pfslowtimo, (void *)0, 1);
}
/*
* The following two operations are kludge code. Most likely, they should
* be done as a "domainpreinit()" for the first function and then rolled
* in as the last act of "domaininit()" for the second.
*
* In point of fact, it is questionable why other initialization prior
* to this does not also take place at splimp by default.
*/
static void
kludge_splimp(udata)
void *udata;
{
int *savesplp = udata;
*savesplp = splimp();
}
static void
kludge_splx(udata)
void *udata;
{
int *savesplp = udata;
splx( *savesplp);
}
struct protosw *
pffindtype(int family, int type)
{
register struct domain *dp;
register struct protosw *pr;
for (dp = domains; dp; dp = dp->dom_next)
if (dp->dom_family == family)
goto found;
return (0);
found:
for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
if (pr->pr_type && pr->pr_type == type)
return (pr);
return (0);
}
struct protosw *
pffindproto(int family, int protocol, int type)
{
register struct domain *dp;
register struct protosw *pr;
struct protosw *maybe = 0;
if (family == 0)
return (0);
for (dp = domains; dp; dp = dp->dom_next)
if (dp->dom_family == family)
goto found;
return (0);
found:
for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
if ((pr->pr_protocol == protocol) && (pr->pr_type == type))
return (pr);
if (type == SOCK_RAW && pr->pr_type == SOCK_RAW &&
pr->pr_protocol == 0 && maybe == (struct protosw *)0)
maybe = pr;
}
return (maybe);
}
void
pfctlinput(cmd, sa)
int cmd;
struct sockaddr *sa;
{
register struct domain *dp;
register struct protosw *pr;
for (dp = domains; dp; dp = dp->dom_next)
for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
if (pr->pr_ctlinput)
(*pr->pr_ctlinput)(cmd, sa, (void *)0);
}
static void
pfslowtimo(arg)
void *arg;
{
register struct domain *dp;
register struct protosw *pr;
for (dp = domains; dp; dp = dp->dom_next)
for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
if (pr->pr_slowtimo)
(*pr->pr_slowtimo)();
timeout(pfslowtimo, (void *)0, hz/2);
}
static void
pffasttimo(arg)
void *arg;
{
register struct domain *dp;
register struct protosw *pr;
for (dp = domains; dp; dp = dp->dom_next)
for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
if (pr->pr_fasttimo)
(*pr->pr_fasttimo)();
timeout(pffasttimo, (void *)0, hz/5);
}
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