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📄 cpufreq_if.m(2.27 KB)
📄 device_if.m(10.41 KB)
📄 firmw.S(2.15 KB)
📄 genassym.sh(1.11 KB)
📄 genoffset.c(1.68 KB)
📄 genoffset.sh(3.58 KB)
📄 imgact_aout.c(9.45 KB)
📄 imgact_binmisc.c(18.64 KB)
📄 imgact_elf.c(76.32 KB)
📄 imgact_elf32.c(1.47 KB)
📄 imgact_elf64.c(1.47 KB)
📄 imgact_shell.c(8.41 KB)
📄 init_main.c(24.31 KB)
📄 init_sysent.c(95.3 KB)
📄 kern_acct.c(19.03 KB)
📄 kern_alq.c(24.97 KB)
📄 kern_clock.c(21.12 KB)
📄 kern_clocksource.c(23.34 KB)
📄 kern_condvar.c(11.28 KB)
📄 kern_conf.c(36.14 KB)
📄 kern_cons.c(15.75 KB)
📄 kern_context.c(3.59 KB)
📄 kern_cpu.c(30.77 KB)
📄 kern_cpuset.c(59.78 KB)
📄 kern_ctf.c(8.73 KB)
📄 kern_descrip.c(112.87 KB)
📄 kern_dtrace.c(2.94 KB)
📄 kern_dump.c(8.51 KB)
📄 kern_environment.c(22.75 KB)
📄 kern_et.c(7.1 KB)
📄 kern_event.c(62.49 KB)
📄 kern_exec.c(46.67 KB)
📄 kern_exit.c(34.61 KB)
📄 kern_fail.c(29.32 KB)
📄 kern_ffclock.c(12.66 KB)
📄 kern_fork.c(28.29 KB)
📄 kern_hhook.c(13.58 KB)
📄 kern_idle.c(2.74 KB)
📄 kern_intr.c(40.44 KB)
📄 kern_jail.c(112.67 KB)
📄 kern_kcov.c(15.32 KB)
📄 kern_khelp.c(9.45 KB)
📄 kern_kthread.c(11.8 KB)
📄 kern_ktr.c(11.93 KB)
📄 kern_ktrace.c(31.41 KB)
📄 kern_linker.c(54.3 KB)
📄 kern_lock.c(46.99 KB)
📄 kern_lockf.c(64.46 KB)
📄 kern_lockstat.c(3.8 KB)
📄 kern_loginclass.c(6.69 KB)
📄 kern_malloc.c(37.09 KB)
📄 kern_mbuf.c(43.16 KB)
📄 kern_mib.c(24.26 KB)
📄 kern_module.c(11.05 KB)
📄 kern_mtxpool.c(5.82 KB)
📄 kern_mutex.c(33.62 KB)
📄 kern_ntptime.c(32.49 KB)
📄 kern_osd.c(12.37 KB)
📄 kern_physio.c(5.74 KB)
📄 kern_pmc.c(8.89 KB)
📄 kern_poll.c(15.86 KB)
📄 kern_priv.c(9.14 KB)
📄 kern_proc.c(80.01 KB)
📄 kern_procctl.c(19.48 KB)
📄 kern_prot.c(57.94 KB)
📄 kern_racct.c(34.01 KB)
📄 kern_rangelock.c(8.67 KB)
📄 kern_rctl.c(53.87 KB)
📄 kern_resource.c(36.66 KB)
📄 kern_rmlock.c(28.27 KB)
📄 kern_rwlock.c(40.72 KB)
📄 kern_sdt.c(2.05 KB)
📄 kern_sema.c(4.85 KB)
📄 kern_sendfile.c(33.97 KB)
📄 kern_sharedpage.c(10.37 KB)
📄 kern_shutdown.c(43.34 KB)
📄 kern_sig.c(101.89 KB)
📄 kern_switch.c(13.85 KB)
📄 kern_sx.c(40.27 KB)
📄 kern_synch.c(18.17 KB)
📄 kern_syscalls.c(6.74 KB)
📄 kern_sysctl.c(67.24 KB)
📄 kern_tc.c(55.73 KB)
📄 kern_thr.c(14.14 KB)
📄 kern_thread.c(41.75 KB)
📄 kern_time.c(40.89 KB)
📄 kern_timeout.c(43.08 KB)
📄 kern_tslog.c(3.44 KB)
📄 kern_ubsan.c(50.74 KB)
📄 kern_umtx.c(107.14 KB)
📄 kern_uuid.c(11.68 KB)
📄 kern_xxx.c(10.44 KB)
📄 ksched.c(6.56 KB)
📄 link_elf.c(47.99 KB)
📄 link_elf_obj.c(44.41 KB)
📄 linker_if.m(3.96 KB)
📄 makesyscalls.sh(23.57 KB)
📄 md4c.c(7.89 KB)
📄 md5c.c(9.56 KB)
📄 msi_if.m(2.48 KB)
📄 p1003_1b.c(8.84 KB)
📄 pic_if.m(3.9 KB)
📄 posix4_mib.c(5.59 KB)
📄 sched_4bsd.c(45.03 KB)
📄 sched_ule.c(82.65 KB)
📄 serdev_if.m(3.49 KB)
📄 stack_protector.c(613 B)
📄 subr_acl_nfs4.c(37.42 KB)
📄 subr_acl_posix1e.c(17.71 KB)
📄 subr_atomic64.c(3.97 KB)
📄 subr_autoconf.c(7.7 KB)
📄 subr_blist.c(31.88 KB)
📄 subr_boot.c(5.8 KB)
📄 subr_bufring.c(2.21 KB)
📄 subr_bus.c(145.4 KB)
📄 subr_bus_dma.c(19.67 KB)
📄 subr_busdma_bufalloc.c(5.24 KB)
📄 subr_capability.c(11.93 KB)
📄 subr_clock.c(10.61 KB)
📄 subr_compressor.c(13.11 KB)
📄 subr_counter.c(4.44 KB)
📄 subr_coverage.c(6.17 KB)
📄 subr_csan.c(25.39 KB)
📄 subr_devmap.c(9.8 KB)
📄 subr_devstat.c(16.21 KB)
📄 subr_disk.c(8.54 KB)
📄 subr_dummy_vdso_tc.c(1.7 KB)
📄 subr_early.c(2.26 KB)
📄 subr_epoch.c(25.02 KB)
📄 subr_eventhandler.c(9.17 KB)
📄 subr_fattime.c(9.98 KB)
📄 subr_filter.c(12.2 KB)
📄 subr_firmware.c(13.88 KB)
📄 subr_gtaskqueue.c(20.19 KB)
📄 subr_hash.c(4.8 KB)
📄 subr_hints.c(12.87 KB)
📄 subr_intr.c(40.61 KB)
📄 subr_kdb.c(16.13 KB)
📄 subr_kobj.c(7.1 KB)
📄 subr_lock.c(18.81 KB)
📄 subr_log.c(7.64 KB)
📄 subr_mchain.c(11.06 KB)
📄 subr_module.c(12.98 KB)
📄 subr_msgbuf.c(10.6 KB)
📄 subr_param.c(10.93 KB)
📄 subr_pcpu.c(10.18 KB)
📄 subr_pctrie.c(20.99 KB)
📄 subr_physmem.c(11.52 KB)
📄 subr_pidctrl.c(5.43 KB)
📄 subr_power.c(3.13 KB)
📄 subr_prf.c(27.42 KB)
📄 subr_prng.c(3.36 KB)
📄 subr_prof.c(15.43 KB)
📄 subr_rangeset.c(8.5 KB)
📄 subr_rman.c(27.61 KB)
📄 subr_rtc.c(11.42 KB)
📄 subr_sbuf.c(20.53 KB)
📄 subr_scanf.c(15.59 KB)
📄 subr_sfbuf.c(6.17 KB)
📄 subr_sglist.c(22.83 KB)
📄 subr_sleepqueue.c(39.43 KB)
📄 subr_smp.c(31.62 KB)
📄 subr_smr.c(20.17 KB)
📄 subr_stack.c(6.47 KB)
📄 subr_stats.c(103.01 KB)
📄 subr_syscall.c(7.98 KB)
📄 subr_taskqueue.c(21.1 KB)
📄 subr_terminal.c(15.52 KB)
📄 subr_trap.c(10.87 KB)
📄 subr_turnstile.c(35.58 KB)
📄 subr_uio.c(11.38 KB)
📄 subr_unit.c(22.97 KB)
📄 subr_vmem.c(43.25 KB)
📄 subr_witness.c(84.59 KB)
📄 sys_capability.c(15.06 KB)
📄 sys_eventfd.c(8.42 KB)
📄 sys_generic.c(44.22 KB)
📄 sys_getrandom.c(4.21 KB)
📄 sys_pipe.c(45.14 KB)
📄 sys_procdesc.c(14.57 KB)
📄 sys_process.c(30.73 KB)
📄 sys_socket.c(20.11 KB)
📄 syscalls.c(22.73 KB)
📄 syscalls.master(60.26 KB)
📄 systrace_args.c(178.49 KB)
📄 sysv_ipc.c(6.53 KB)
📄 sysv_msg.c(48.65 KB)
📄 sysv_sem.c(49.85 KB)
📄 sysv_shm.c(43.93 KB)
📄 tty.c(55.14 KB)
📄 tty_compat.c(11.46 KB)
📄 tty_info.c(9.93 KB)
📄 tty_inq.c(12.22 KB)
📄 tty_outq.c(8.74 KB)
📄 tty_pts.c(19.74 KB)
📄 tty_tty.c(2.83 KB)
📄 tty_ttydisc.c(28.6 KB)
📄 uipc_accf.c(8.07 KB)
📄 uipc_debug.c(12.42 KB)
📄 uipc_domain.c(13.13 KB)
📄 uipc_ktls.c(55.7 KB)
📄 uipc_mbuf.c(52.45 KB)
📄 uipc_mbuf2.c(12.64 KB)
📄 uipc_mbufhash.c(4.9 KB)
📄 uipc_mqueue.c(64.64 KB)
📄 uipc_sem.c(25.18 KB)
📄 uipc_shm.c(50.47 KB)
📄 uipc_sockbuf.c(42.9 KB)
📄 uipc_socket.c(110.61 KB)
📄 uipc_syscalls.c(35.94 KB)
📄 uipc_usrreq.c(75.11 KB)
📄 vfs_acl.c(14.5 KB)
📄 vfs_aio.c(76.32 KB)
📄 vfs_bio.c(145.39 KB)
📄 vfs_cache.c(143.09 KB)
📄 vfs_cluster.c(28.36 KB)
📄 vfs_default.c(33.16 KB)
📄 vfs_export.c(14.55 KB)
📄 vfs_extattr.c(17.91 KB)
📄 vfs_hash.c(6 KB)
📄 vfs_init.c(15.86 KB)
📄 vfs_lookup.c(45.48 KB)
📄 vfs_mount.c(62.58 KB)
📄 vfs_mountroot.c(26.23 KB)
📄 vfs_subr.c(167.52 KB)
📄 vfs_syscalls.c(106.86 KB)
📄 vfs_vnops.c(86.28 KB)
📄 vnode_if.src(13.66 KB)

Editing: uipc_domain.c

/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * 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. 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
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <sys/param.h>
#include <sys/socket.h>
#include <sys/protosw.h>
#include <sys/domain.h>
#include <sys/eventhandler.h>
#include <sys/epoch.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/socketvar.h>
#include <sys/systm.h>

#include <net/vnet.h>

/*
 * System initialization
 *
 * Note: domain initialization takes place on a per domain basis
 * as a result of traversing a SYSINIT linker set.  Most likely,
 * each domain would want to call DOMAIN_SET(9) itself, which
 * would cause the domain to be added just after domaininit()
 * is called during startup.
 *
 * See DOMAIN_SET(9) for details on its use.
 */

static void domaininit(void *);
SYSINIT(domain, SI_SUB_PROTO_DOMAININIT, SI_ORDER_ANY, domaininit, NULL);

static void domainfinalize(void *);
SYSINIT(domainfin, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_FIRST, domainfinalize,
    NULL);

static struct callout pffast_callout;
static struct callout pfslow_callout;

static void	pffasttimo(void *);
static void	pfslowtimo(void *);

struct domain *domains;		/* registered protocol domains */
int domain_init_status = 0;
static struct mtx dom_mtx;		/* domain list lock */
MTX_SYSINIT(domain, &dom_mtx, "domain list", MTX_DEF);

/*
 * Dummy protocol specific user requests function pointer array.
 * All functions return EOPNOTSUPP.
 */
struct pr_usrreqs nousrreqs = {
	.pru_accept =		pru_accept_notsupp,
	.pru_attach =		pru_attach_notsupp,
	.pru_bind =		pru_bind_notsupp,
	.pru_connect =		pru_connect_notsupp,
	.pru_connect2 =		pru_connect2_notsupp,
	.pru_control =		pru_control_notsupp,
	.pru_disconnect	=	pru_disconnect_notsupp,
	.pru_listen =		pru_listen_notsupp,
	.pru_peeraddr =		pru_peeraddr_notsupp,
	.pru_rcvd =		pru_rcvd_notsupp,
	.pru_rcvoob =		pru_rcvoob_notsupp,
	.pru_send =		pru_send_notsupp,
	.pru_sense =		pru_sense_null,
	.pru_shutdown =		pru_shutdown_notsupp,
	.pru_sockaddr =		pru_sockaddr_notsupp,
	.pru_sosend =		pru_sosend_notsupp,
	.pru_soreceive =	pru_soreceive_notsupp,
	.pru_sopoll =		pru_sopoll_notsupp,
};

static void
protosw_init(struct protosw *pr)
{
	struct pr_usrreqs *pu;

pu = pr->pr_usrreqs;
	KASSERT(pu != NULL, ("protosw_init: %ssw[%d] has no usrreqs!",
	    pr->pr_domain->dom_name,
	    (int)(pr - pr->pr_domain->dom_protosw)));

/*
	 * Protocol switch methods fall into three categories: mandatory,
	 * mandatory but protosw_init() provides a default, and optional.
	 *
	 * For true protocols (i.e., pru_attach != NULL), KASSERT truly
	 * mandatory methods with no defaults, and initialize defaults for
	 * other mandatory methods if the protocol hasn't defined an
	 * implementation (NULL function pointer).
	 */
#if 0
	if (pu->pru_attach != NULL) {
		KASSERT(pu->pru_abort != NULL,
		    ("protosw_init: %ssw[%d] pru_abort NULL",
		    pr->pr_domain->dom_name,
		    (int)(pr - pr->pr_domain->dom_protosw)));
		KASSERT(pu->pru_send != NULL,
		    ("protosw_init: %ssw[%d] pru_send NULL",
		    pr->pr_domain->dom_name,
		    (int)(pr - pr->pr_domain->dom_protosw)));
	}
#endif

#define DEFAULT(foo, bar)	if ((foo) == NULL)  (foo) = (bar)
	DEFAULT(pu->pru_accept, pru_accept_notsupp);
	DEFAULT(pu->pru_aio_queue, pru_aio_queue_notsupp);
	DEFAULT(pu->pru_bind, pru_bind_notsupp);
	DEFAULT(pu->pru_bindat, pru_bindat_notsupp);
	DEFAULT(pu->pru_connect, pru_connect_notsupp);
	DEFAULT(pu->pru_connect2, pru_connect2_notsupp);
	DEFAULT(pu->pru_connectat, pru_connectat_notsupp);
	DEFAULT(pu->pru_control, pru_control_notsupp);
	DEFAULT(pu->pru_disconnect, pru_disconnect_notsupp);
	DEFAULT(pu->pru_listen, pru_listen_notsupp);
	DEFAULT(pu->pru_peeraddr, pru_peeraddr_notsupp);
	DEFAULT(pu->pru_rcvd, pru_rcvd_notsupp);
	DEFAULT(pu->pru_rcvoob, pru_rcvoob_notsupp);
	DEFAULT(pu->pru_sense, pru_sense_null);
	DEFAULT(pu->pru_shutdown, pru_shutdown_notsupp);
	DEFAULT(pu->pru_sockaddr, pru_sockaddr_notsupp);
	DEFAULT(pu->pru_sosend, sosend_generic);
	DEFAULT(pu->pru_soreceive, soreceive_generic);
	DEFAULT(pu->pru_sopoll, sopoll_generic);
	DEFAULT(pu->pru_ready, pru_ready_notsupp);
#undef DEFAULT
	if (pr->pr_init)
		(*pr->pr_init)();
}

/*
 * Add a new protocol domain to the list of supported domains
 * Note: you cant unload it again because a socket may be using it.
 * XXX can't fail at this time.
 */
void
domain_init(void *arg)
{
	struct domain *dp = arg;
	struct protosw *pr;

if (dp->dom_init)
		(*dp->dom_init)();
	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
		protosw_init(pr);
	/*
	 * update global information about maximums
	 */
	max_hdr = max_linkhdr + max_protohdr;
	max_datalen = MHLEN - max_hdr;
	if (max_datalen < 1)
		panic("%s: max_datalen < 1", __func__);
}

#ifdef VIMAGE
void
vnet_domain_init(void *arg)
{

/* Virtualized case is no different -- call init functions. */
	domain_init(arg);
}

void
vnet_domain_uninit(void *arg)
{
	struct domain *dp = arg;

if (dp->dom_destroy)
		(*dp->dom_destroy)();
}
#endif

/*
 * Add a new protocol domain to the list of supported domains
 * Note: you cant unload it again because a socket may be using it.
 * XXX can't fail at this time.
 */
void
domain_add(void *data)
{
	struct domain *dp;

dp = (struct domain *)data;
	mtx_lock(&dom_mtx);
	dp->dom_next = domains;
	domains = dp;

KASSERT(domain_init_status >= 1,
	    ("attempt to domain_add(%s) before domaininit()",
	    dp->dom_name));
#ifndef INVARIANTS
	if (domain_init_status < 1)
		printf("WARNING: attempt to domain_add(%s) before "
		    "domaininit()\n", dp->dom_name);
#endif
#ifdef notyet
	KASSERT(domain_init_status < 2,
	    ("attempt to domain_add(%s) after domainfinalize()",
	    dp->dom_name));
#else
	if (domain_init_status >= 2)
		printf("WARNING: attempt to domain_add(%s) after "
		    "domainfinalize()\n", dp->dom_name);
#endif
	mtx_unlock(&dom_mtx);
}

/* ARGSUSED*/
static void
domaininit(void *dummy)
{

if (max_linkhdr < 16)		/* XXX */
		max_linkhdr = 16;

callout_init(&pffast_callout, 1);
	callout_init(&pfslow_callout, 1);

mtx_lock(&dom_mtx);
	KASSERT(domain_init_status == 0, ("domaininit called too late!"));
	domain_init_status = 1;
	mtx_unlock(&dom_mtx);
}

/* ARGSUSED*/
static void
domainfinalize(void *dummy)
{

mtx_lock(&dom_mtx);
	KASSERT(domain_init_status == 1, ("domainfinalize called too late!"));
	domain_init_status = 2;
	mtx_unlock(&dom_mtx);

callout_reset(&pffast_callout, 1, pffasttimo, NULL);
	callout_reset(&pfslow_callout, 1, pfslowtimo, NULL);
}

struct domain *
pffinddomain(int family)
{
	struct domain *dp;

for (dp = domains; dp != NULL; dp = dp->dom_next)
		if (dp->dom_family == family)
			return (dp);
	return (NULL);
}

struct protosw *
pffindtype(int family, int type)
{
	struct domain *dp;
	struct protosw *pr;

dp = pffinddomain(family);
	if (dp == NULL)
		return (NULL);

for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
		if (pr->pr_type && pr->pr_type == type)
			return (pr);
	return (NULL);
}

struct protosw *
pffindproto(int family, int protocol, int type)
{
	struct domain *dp;
	struct protosw *pr;
	struct protosw *maybe;

maybe = NULL;
	if (family == 0)
		return (NULL);

dp = pffinddomain(family);
	if (dp == NULL)
		return (NULL);

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 == NULL)
			maybe = pr;
	}
	return (maybe);
}

/*
 * The caller must make sure that the new protocol is fully set up and ready to
 * accept requests before it is registered.
 */
int
pf_proto_register(int family, struct protosw *npr)
{
	VNET_ITERATOR_DECL(vnet_iter);
	struct domain *dp;
	struct protosw *pr, *fpr;

/* Sanity checks. */
	if (family == 0)
		return (EPFNOSUPPORT);
	if (npr->pr_type == 0)
		return (EPROTOTYPE);
	if (npr->pr_protocol == 0)
		return (EPROTONOSUPPORT);
	if (npr->pr_usrreqs == NULL)
		return (ENXIO);

/* Try to find the specified domain based on the family. */
	dp = pffinddomain(family);
	if (dp == NULL)
		return (EPFNOSUPPORT);

/* Initialize backpointer to struct domain. */
	npr->pr_domain = dp;
	fpr = NULL;

/*
	 * Protect us against races when two protocol registrations for
	 * the same protocol happen at the same time.
	 */
	mtx_lock(&dom_mtx);

/* The new protocol must not yet exist. */
	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
		if ((pr->pr_type == npr->pr_type) &&
		    (pr->pr_protocol == npr->pr_protocol)) {
			mtx_unlock(&dom_mtx);
			return (EEXIST);	/* XXX: Check only protocol? */
		}
		/* While here, remember the first free spacer. */
		if ((fpr == NULL) && (pr->pr_protocol == PROTO_SPACER))
			fpr = pr;
	}

/* If no free spacer is found we can't add the new protocol. */
	if (fpr == NULL) {
		mtx_unlock(&dom_mtx);
		return (ENOMEM);
	}

/* Copy the new struct protosw over the spacer. */
	bcopy(npr, fpr, sizeof(*fpr));

/* Job is done, no more protection required. */
	mtx_unlock(&dom_mtx);

/* Initialize and activate the protocol. */
	VNET_LIST_RLOCK();
	VNET_FOREACH(vnet_iter) {
		CURVNET_SET_QUIET(vnet_iter);
		protosw_init(fpr);
		CURVNET_RESTORE();
	}
	VNET_LIST_RUNLOCK();

return (0);
}

/*
 * The caller must make sure the protocol and its functions correctly shut down
 * all sockets and release all locks and memory references.
 */
int
pf_proto_unregister(int family, int protocol, int type)
{
	struct domain *dp;
	struct protosw *pr, *dpr;

/* Sanity checks. */
	if (family == 0)
		return (EPFNOSUPPORT);
	if (protocol == 0)
		return (EPROTONOSUPPORT);
	if (type == 0)
		return (EPROTOTYPE);

/* Try to find the specified domain based on the family type. */
	dp = pffinddomain(family);
	if (dp == NULL)
		return (EPFNOSUPPORT);

dpr = NULL;

/* Lock out everyone else while we are manipulating the protosw. */
	mtx_lock(&dom_mtx);

/* The protocol must exist and only once. */
	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
		if ((pr->pr_type == type) && (pr->pr_protocol == protocol)) {
			if (dpr != NULL) {
				mtx_unlock(&dom_mtx);
				return (EMLINK);   /* Should not happen! */
			} else
				dpr = pr;
		}
	}

/* Protocol does not exist. */
	if (dpr == NULL) {
		mtx_unlock(&dom_mtx);
		return (EPROTONOSUPPORT);
	}

/* De-orbit the protocol and make the slot available again. */
	dpr->pr_type = 0;
	dpr->pr_domain = dp;
	dpr->pr_protocol = PROTO_SPACER;
	dpr->pr_flags = 0;
	dpr->pr_input = NULL;
	dpr->pr_output = NULL;
	dpr->pr_ctlinput = NULL;
	dpr->pr_ctloutput = NULL;
	dpr->pr_init = NULL;
	dpr->pr_fasttimo = NULL;
	dpr->pr_slowtimo = NULL;
	dpr->pr_drain = NULL;
	dpr->pr_usrreqs = &nousrreqs;

/* Job is done, not more protection required. */
	mtx_unlock(&dom_mtx);

return (0);
}

void
pfctlinput(int cmd, struct sockaddr *sa)
{
	struct domain *dp;
	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(void *arg)
{
	struct epoch_tracker et;
	struct domain *dp;
	struct protosw *pr;

NET_EPOCH_ENTER(et);
	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)();
	NET_EPOCH_EXIT(et);
	callout_reset(&pfslow_callout, hz/2, pfslowtimo, NULL);
}

static void
pffasttimo(void *arg)
{
	struct epoch_tracker et;
	struct domain *dp;
	struct protosw *pr;

NET_EPOCH_ENTER(et);
	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)();
	NET_EPOCH_EXIT(et);
	callout_reset(&pffast_callout, hz/5, pffasttimo, NULL);
}

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