Move files to match FreeBSD layout

1 files changed, 3896 insertions, 0 deletions

diff --git a/freebsd/sys/contrib/pf/net/pf_ioctl.c b/freebsd/sys/contrib/pf/net/pf_ioctl.c
new file mode 100644
index 00000000..de612b4f
--- /dev/null
+++ b/freebsd/sys/contrib/pf/net/pf_ioctl.c
@@ -0,0 +1,3896 @@
+#include <freebsd/machine/rtems-bsd-config.h>
+
+/*	$OpenBSD: pf_ioctl.c,v 1.175 2007/02/26 22:47:43 deraadt Exp $ */
+
+/*
+ * Copyright (c) 2001 Daniel Hartmeier
+ * Copyright (c) 2002,2003 Henning Brauer
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *    - Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *    - 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 COPYRIGHT HOLDERS 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
+ * COPYRIGHT HOLDERS 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.
+ *
+ * Effort sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F30602-01-2-0537.
+ *
+ */
+
+#ifdef __FreeBSD__
+#include <freebsd/sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <freebsd/local/opt_inet.h>
+#include <freebsd/local/opt_inet6.h>
+#include <freebsd/local/opt_bpf.h>
+#include <freebsd/local/opt_pf.h>
+
+#ifdef DEV_BPF
+#define	NBPFILTER	DEV_BPF
+#else
+#define	NBPFILTER	0
+#endif
+
+#ifdef DEV_PFLOG
+#define	NPFLOG		DEV_PFLOG
+#else
+#define	NPFLOG		0
+#endif
+
+#ifdef DEV_PFSYNC
+#define	NPFSYNC		DEV_PFSYNC
+#else
+#define	NPFSYNC		0
+#endif
+
+#else
+#include <freebsd/local/bpfilter.h>
+#include <freebsd/local/pflog.h>
+#include <freebsd/local/pfsync.h>
+#endif
+
+#include <freebsd/sys/param.h>
+#include <freebsd/sys/systm.h>
+#include <freebsd/sys/mbuf.h>
+#include <freebsd/sys/filio.h>
+#include <freebsd/sys/fcntl.h>
+#include <freebsd/sys/socket.h>
+#include <freebsd/sys/socketvar.h>
+#include <freebsd/sys/kernel.h>
+#include <freebsd/sys/time.h>
+#include <freebsd/sys/malloc.h>
+#ifdef __FreeBSD__
+#include <freebsd/sys/module.h>
+#include <freebsd/sys/conf.h>
+#include <freebsd/sys/proc.h>
+#include <freebsd/sys/sysctl.h>
+#else
+#include <freebsd/sys/timeout.h>
+#include <freebsd/sys/pool.h>
+#endif
+#include <freebsd/sys/proc.h>
+#include <freebsd/sys/malloc.h>
+#include <freebsd/sys/kthread.h>
+#ifndef __FreeBSD__
+#include <freebsd/sys/rwlock.h>
+#include <freebsd/uvm/uvm_extern.h>
+#endif
+
+#include <freebsd/net/if.h>
+#include <freebsd/net/if_types.h>
+#ifdef __FreeBSD__
+#include <freebsd/net/vnet.h>
+#endif
+
+#include <freebsd/netinet/in.h>
+#include <freebsd/netinet/in_var.h>
+#include <freebsd/netinet/in_systm.h>
+#include <freebsd/netinet/ip.h>
+#include <freebsd/netinet/ip_var.h>
+#include <freebsd/netinet/ip_icmp.h>
+
+#ifdef __FreeBSD__
+#include <freebsd/sys/md5.h>
+#else
+#include <freebsd/dev/rndvar.h>
+#include <freebsd/crypto/md5.h>
+#endif
+#include <freebsd/net/pfvar.h>
+
+#if NPFSYNC > 0
+#include <freebsd/net/if_pfsync.h>
+#endif /* NPFSYNC > 0 */
+
+#include <freebsd/net/if_pflog.h>
+
+#ifdef INET6
+#include <freebsd/netinet/ip6.h>
+#include <freebsd/netinet/in_pcb.h>
+#endif /* INET6 */
+
+#ifdef ALTQ
+#include <freebsd/altq/altq.h>
+#endif
+
+#ifdef __FreeBSD__
+#include <freebsd/sys/limits.h>
+#include <freebsd/sys/lock.h>
+#include <freebsd/sys/mutex.h>
+#include <freebsd/net/pfil.h>
+#endif /* __FreeBSD__ */
+
+#ifdef __FreeBSD__
+void			 init_zone_var(void);
+void			 cleanup_pf_zone(void);
+int			 pfattach(void);
+#else
+void			 pfattach(int);
+void			 pf_thread_create(void *);
+int			 pfopen(dev_t, int, int, struct proc *);
+int			 pfclose(dev_t, int, int, struct proc *);
+#endif
+struct pf_pool		*pf_get_pool(char *, u_int32_t, u_int8_t, u_int32_t,
+			    u_int8_t, u_int8_t, u_int8_t);
+
+void			 pf_mv_pool(struct pf_palist *, struct pf_palist *);
+void			 pf_empty_pool(struct pf_palist *);
+#ifdef __FreeBSD__
+int			 pfioctl(struct cdev *, u_long, caddr_t, int, struct thread *);
+#else
+int			 pfioctl(struct cdev *, u_long, caddr_t, int, struct proc *);
+#endif
+#ifdef ALTQ
+int			 pf_begin_altq(u_int32_t *);
+int			 pf_rollback_altq(u_int32_t);
+int			 pf_commit_altq(u_int32_t);
+int			 pf_enable_altq(struct pf_altq *);
+int			 pf_disable_altq(struct pf_altq *);
+#endif /* ALTQ */
+int			 pf_begin_rules(u_int32_t *, int, const char *);
+int			 pf_rollback_rules(u_int32_t, int, char *);
+int			 pf_setup_pfsync_matching(struct pf_ruleset *);
+void			 pf_hash_rule(MD5_CTX *, struct pf_rule *);
+void			 pf_hash_rule_addr(MD5_CTX *, struct pf_rule_addr *);
+int			 pf_commit_rules(u_int32_t, int, char *);
+
+struct pf_rule		 pf_default_rule;
+#ifdef __FreeBSD__
+struct sx		 pf_consistency_lock;
+SX_SYSINIT(pf_consistency_lock, &pf_consistency_lock, "pf_statetbl_lock");
+#else
+struct rwlock		 pf_consistency_lock = RWLOCK_INITIALIZER;
+#endif
+#ifdef ALTQ
+static int		 pf_altq_running;
+#endif
+
+#define	TAGID_MAX	 50000
+TAILQ_HEAD(pf_tags, pf_tagname)	pf_tags = TAILQ_HEAD_INITIALIZER(pf_tags),
+				pf_qids = TAILQ_HEAD_INITIALIZER(pf_qids);
+
+#if (PF_QNAME_SIZE != PF_TAG_NAME_SIZE)
+#error PF_QNAME_SIZE must be equal to PF_TAG_NAME_SIZE
+#endif
+u_int16_t		 tagname2tag(struct pf_tags *, char *);
+void			 tag2tagname(struct pf_tags *, u_int16_t, char *);
+void			 tag_unref(struct pf_tags *, u_int16_t);
+int			 pf_rtlabel_add(struct pf_addr_wrap *);
+void			 pf_rtlabel_remove(struct pf_addr_wrap *);
+void			 pf_rtlabel_copyout(struct pf_addr_wrap *);
+
+#define DPFPRINTF(n, x) if (pf_status.debug >= (n)) printf x
+
+
+#ifdef __FreeBSD__
+static struct cdev	*pf_dev;
+
+/*
+ * XXX - These are new and need to be checked when moveing to a new version
+ */
+static void		 pf_clear_states(void);
+static int		 pf_clear_tables(void);
+static void		 pf_clear_srcnodes(void);
+/*
+ * XXX - These are new and need to be checked when moveing to a new version
+ */
+ 
+/*
+ * Wrapper functions for pfil(9) hooks
+ */
+static int pf_check_in(void *arg, struct mbuf **m, struct ifnet *ifp,
+		int dir, struct inpcb *inp);
+static int pf_check_out(void *arg, struct mbuf **m, struct ifnet *ifp,
+		int dir, struct inpcb *inp);
+#ifdef INET6
+static int pf_check6_in(void *arg, struct mbuf **m, struct ifnet *ifp,
+		int dir, struct inpcb *inp);
+static int pf_check6_out(void *arg, struct mbuf **m, struct ifnet *ifp,
+		int dir, struct inpcb *inp);
+#endif
+
+static int 		 hook_pf(void);
+static int 		 dehook_pf(void);
+static int 		 shutdown_pf(void);
+static int 		 pf_load(void);
+static int 		 pf_unload(void);
+
+static struct cdevsw pf_cdevsw = {
+	.d_ioctl =	pfioctl,
+	.d_name =	PF_NAME,
+	.d_version =	D_VERSION,
+};
+
+static volatile int pf_pfil_hooked = 0;
+int pf_end_threads = 0;
+struct mtx pf_task_mtx;
+pflog_packet_t *pflog_packet_ptr = NULL;
+
+int debug_pfugidhack = 0;
+SYSCTL_INT(_debug, OID_AUTO, pfugidhack, CTLFLAG_RW, &debug_pfugidhack, 0,
+    "Enable/disable pf user/group rules mpsafe hack");
+
+void
+init_pf_mutex(void)
+{
+	mtx_init(&pf_task_mtx, "pf task mtx", NULL, MTX_DEF);
+}
+
+void
+destroy_pf_mutex(void)
+{
+	mtx_destroy(&pf_task_mtx);
+}
+
+void
+init_zone_var(void)
+{
+	pf_src_tree_pl = pf_rule_pl = NULL;
+	pf_state_pl = pf_altq_pl = pf_pooladdr_pl = NULL;
+	pf_frent_pl = pf_frag_pl = pf_cache_pl = pf_cent_pl = NULL;
+	pf_state_scrub_pl = NULL;
+	pfr_ktable_pl = pfr_kentry_pl = NULL;
+}
+
+void
+cleanup_pf_zone(void)
+{
+	UMA_DESTROY(pf_src_tree_pl);
+	UMA_DESTROY(pf_rule_pl);
+	UMA_DESTROY(pf_state_pl);
+	UMA_DESTROY(pf_altq_pl);
+	UMA_DESTROY(pf_pooladdr_pl);
+	UMA_DESTROY(pf_frent_pl);
+	UMA_DESTROY(pf_frag_pl);
+	UMA_DESTROY(pf_cache_pl);
+	UMA_DESTROY(pf_cent_pl);
+	UMA_DESTROY(pfr_ktable_pl);
+	UMA_DESTROY(pfr_kentry_pl2);
+	UMA_DESTROY(pfr_kentry_pl);
+	UMA_DESTROY(pf_state_scrub_pl);
+	UMA_DESTROY(pfi_addr_pl);
+}
+
+int
+pfattach(void)
+{
+	u_int32_t *my_timeout = pf_default_rule.timeout;
+	int error = 1;
+
+	do {
+		UMA_CREATE(pf_src_tree_pl,struct pf_src_node, "pfsrctrpl");
+		UMA_CREATE(pf_rule_pl,	  struct pf_rule, "pfrulepl");
+		UMA_CREATE(pf_state_pl,	  struct pf_state, "pfstatepl");
+		UMA_CREATE(pf_altq_pl,	  struct pf_altq, "pfaltqpl");
+		UMA_CREATE(pf_pooladdr_pl, struct pf_pooladdr, "pfpooladdrpl");
+		UMA_CREATE(pfr_ktable_pl,  struct pfr_ktable, "pfrktable");
+		UMA_CREATE(pfr_kentry_pl,  struct pfr_kentry, "pfrkentry");
+		UMA_CREATE(pfr_kentry_pl2,  struct pfr_kentry, "pfrkentry2");
+		UMA_CREATE(pf_frent_pl,	  struct pf_frent, "pffrent");
+		UMA_CREATE(pf_frag_pl,	  struct pf_fragment, "pffrag");
+		UMA_CREATE(pf_cache_pl,	  struct pf_fragment, "pffrcache");
+		UMA_CREATE(pf_cent_pl,	  struct pf_frcache, "pffrcent");
+		UMA_CREATE(pf_state_scrub_pl, struct pf_state_scrub, 
+		    "pfstatescrub");
+		UMA_CREATE(pfi_addr_pl, struct pfi_dynaddr, "pfiaddrpl");
+		error = 0;
+	} while(0);
+	if (error) {
+		cleanup_pf_zone();
+		return (error);
+	}
+	pfr_initialize();
+	pfi_initialize();
+	if ( (error = pf_osfp_initialize()) ) {
+		cleanup_pf_zone();
+		pf_osfp_cleanup();
+		return (error);
+	}
+
+	pf_pool_limits[PF_LIMIT_STATES].pp = pf_state_pl;
+	pf_pool_limits[PF_LIMIT_STATES].limit = PFSTATE_HIWAT;
+	pf_pool_limits[PF_LIMIT_SRC_NODES].pp = pf_src_tree_pl;
+	pf_pool_limits[PF_LIMIT_SRC_NODES].limit = PFSNODE_HIWAT;
+	pf_pool_limits[PF_LIMIT_FRAGS].pp = pf_frent_pl;
+	pf_pool_limits[PF_LIMIT_FRAGS].limit = PFFRAG_FRENT_HIWAT;
+	pf_pool_limits[PF_LIMIT_TABLES].pp = pfr_ktable_pl;
+	pf_pool_limits[PF_LIMIT_TABLES].limit = PFR_KTABLE_HIWAT;
+	pf_pool_limits[PF_LIMIT_TABLE_ENTRIES].pp = pfr_kentry_pl;
+	pf_pool_limits[PF_LIMIT_TABLE_ENTRIES].limit = PFR_KENTRY_HIWAT;
+	uma_zone_set_max(pf_pool_limits[PF_LIMIT_STATES].pp,
+		pf_pool_limits[PF_LIMIT_STATES].limit);
+
+	RB_INIT(&tree_src_tracking);
+	RB_INIT(&pf_anchors);
+	pf_init_ruleset(&pf_main_ruleset);
+	TAILQ_INIT(&pf_altqs[0]);
+	TAILQ_INIT(&pf_altqs[1]);
+	TAILQ_INIT(&pf_pabuf);
+	pf_altqs_active = &pf_altqs[0];
+	pf_altqs_inactive = &pf_altqs[1];
+	TAILQ_INIT(&state_list);
+
+	/* default rule should never be garbage collected */
+	pf_default_rule.entries.tqe_prev = &pf_default_rule.entries.tqe_next;
+	pf_default_rule.action = PF_PASS;
+	pf_default_rule.nr = -1;
+	pf_default_rule.rtableid = -1;
+
+	/* initialize default timeouts */
+	my_timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
+	my_timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL;
+	my_timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
+	my_timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL;
+	my_timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL;
+	my_timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL;
+	my_timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
+	my_timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
+	my_timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL;
+	my_timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
+	my_timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL;
+	my_timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL;
+	my_timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL;
+	my_timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL;
+	my_timeout[PFTM_FRAG] = PFTM_FRAG_VAL;
+	my_timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL;
+	my_timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL;
+	my_timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL;
+	my_timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START;
+	my_timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END;
+
+	pf_normalize_init();
+	bzero(&pf_status, sizeof(pf_status));
+	pf_status.debug = PF_DEBUG_URGENT;
+
+	pf_pfil_hooked = 0;
+
+	/* XXX do our best to avoid a conflict */
+	pf_status.hostid = arc4random();
+
+	if (kproc_create(pf_purge_thread, NULL, NULL, 0, 0, "pfpurge"))
+		return (ENXIO);
+
+	return (error);
+}
+#else /* !__FreeBSD__ */
+void
+pfattach(int num)
+{
+	u_int32_t *timeout = pf_default_rule.timeout;
+
+	pool_init(&pf_rule_pl, sizeof(struct pf_rule), 0, 0, 0, "pfrulepl",
+	    &pool_allocator_nointr);
+	pool_init(&pf_src_tree_pl, sizeof(struct pf_src_node), 0, 0, 0,
+	    "pfsrctrpl", NULL);
+	pool_init(&pf_state_pl, sizeof(struct pf_state), 0, 0, 0, "pfstatepl",
+	    NULL);
+	pool_init(&pf_altq_pl, sizeof(struct pf_altq), 0, 0, 0, "pfaltqpl",
+	    &pool_allocator_nointr);
+	pool_init(&pf_pooladdr_pl, sizeof(struct pf_pooladdr), 0, 0, 0,
+	    "pfpooladdrpl", &pool_allocator_nointr);
+	pfr_initialize();
+	pfi_initialize();
+	pf_osfp_initialize();
+
+	pool_sethardlimit(pf_pool_limits[PF_LIMIT_STATES].pp,
+	    pf_pool_limits[PF_LIMIT_STATES].limit, NULL, 0);
+
+	if (ctob(physmem) <= 100*1024*1024)
+		pf_pool_limits[PF_LIMIT_TABLE_ENTRIES].limit =
+		    PFR_KENTRY_HIWAT_SMALL;
+
+	RB_INIT(&tree_src_tracking);
+	RB_INIT(&pf_anchors);
+	pf_init_ruleset(&pf_main_ruleset);
+	TAILQ_INIT(&pf_altqs[0]);
+	TAILQ_INIT(&pf_altqs[1]);
+	TAILQ_INIT(&pf_pabuf);
+	pf_altqs_active = &pf_altqs[0];
+	pf_altqs_inactive = &pf_altqs[1];
+	TAILQ_INIT(&state_list);
+
+	/* default rule should never be garbage collected */
+	pf_default_rule.entries.tqe_prev = &pf_default_rule.entries.tqe_next;
+	pf_default_rule.action = PF_PASS;
+	pf_default_rule.nr = -1;
+	pf_default_rule.rtableid = -1;
+
+	/* initialize default timeouts */
+	timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
+	timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL;
+	timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
+	timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL;
+	timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL;
+	timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL;
+	timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
+	timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
+	timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL;
+	timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
+	timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL;
+	timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL;
+	timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL;
+	timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL;
+	timeout[PFTM_FRAG] = PFTM_FRAG_VAL;
+	timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL;
+	timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL;
+	timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL;
+	timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START;
+	timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END;
+
+	pf_normalize_init();
+	bzero(&pf_status, sizeof(pf_status));
+	pf_status.debug = PF_DEBUG_URGENT;
+
+	/* XXX do our best to avoid a conflict */
+	pf_status.hostid = arc4random();
+
+	/* require process context to purge states, so perform in a thread */
+	kproc_create_deferred(pf_thread_create, NULL);
+}
+
+void
+pf_thread_create(void *v)
+{
+	if (kproc_create(pf_purge_thread, NULL, NULL, "pfpurge"))
+		panic("pfpurge thread");
+}
+
+int
+pfopen(struct cdev *dev, int flags, int fmt, struct proc *p)
+{
+	if (dev2unit(dev) >= 1)
+		return (ENXIO);
+	return (0);
+}
+
+int
+pfclose(struct cdev *dev, int flags, int fmt, struct proc *p)
+{
+	if (dev2unit(dev) >= 1)
+		return (ENXIO);
+	return (0);
+}
+#endif /* __FreeBSD__ */
+
+struct pf_pool *
+pf_get_pool(char *anchor, u_int32_t ticket, u_int8_t rule_action,
+    u_int32_t rule_number, u_int8_t r_last, u_int8_t active,
+    u_int8_t check_ticket)
+{
+	struct pf_ruleset	*ruleset;
+	struct pf_rule		*rule;
+	int			 rs_num;
+
+	ruleset = pf_find_ruleset(anchor);
+	if (ruleset == NULL)
+		return (NULL);
+	rs_num = pf_get_ruleset_number(rule_action);
+	if (rs_num >= PF_RULESET_MAX)
+		return (NULL);
+	if (active) {
+		if (check_ticket && ticket !=
+		    ruleset->rules[rs_num].active.ticket)
+			return (NULL);
+		if (r_last)
+			rule = TAILQ_LAST(ruleset->rules[rs_num].active.ptr,
+			    pf_rulequeue);
+		else
+			rule = TAILQ_FIRST(ruleset->rules[rs_num].active.ptr);
+	} else {
+		if (check_ticket && ticket !=
+		    ruleset->rules[rs_num].inactive.ticket)
+			return (NULL);
+		if (r_last)
+			rule = TAILQ_LAST(ruleset->rules[rs_num].inactive.ptr,
+			    pf_rulequeue);
+		else
+			rule = TAILQ_FIRST(ruleset->rules[rs_num].inactive.ptr);
+	}
+	if (!r_last) {
+		while ((rule != NULL) && (rule->nr != rule_number))
+			rule = TAILQ_NEXT(rule, entries);
+	}
+	if (rule == NULL)
+		return (NULL);
+
+	return (&rule->rpool);
+}
+
+void
+pf_mv_pool(struct pf_palist *poola, struct pf_palist *poolb)
+{
+	struct pf_pooladdr	*mv_pool_pa;
+
+	while ((mv_pool_pa = TAILQ_FIRST(poola)) != NULL) {
+		TAILQ_REMOVE(poola, mv_pool_pa, entries);
+		TAILQ_INSERT_TAIL(poolb, mv_pool_pa, entries);
+	}
+}
+
+void
+pf_empty_pool(struct pf_palist *poola)
+{
+	struct pf_pooladdr	*empty_pool_pa;
+
+	while ((empty_pool_pa = TAILQ_FIRST(poola)) != NULL) {
+		pfi_dynaddr_remove(&empty_pool_pa->addr);
+		pf_tbladdr_remove(&empty_pool_pa->addr);
+		pfi_kif_unref(empty_pool_pa->kif, PFI_KIF_REF_RULE);
+		TAILQ_REMOVE(poola, empty_pool_pa, entries);
+		pool_put(&pf_pooladdr_pl, empty_pool_pa);
+	}
+}
+
+void
+pf_rm_rule(struct pf_rulequeue *rulequeue, struct pf_rule *rule)
+{
+	if (rulequeue != NULL) {
+		if (rule->states <= 0) {
+			/*
+			 * XXX - we need to remove the table *before* detaching
+			 * the rule to make sure the table code does not delete
+			 * the anchor under our feet.
+			 */
+			pf_tbladdr_remove(&rule->src.addr);
+			pf_tbladdr_remove(&rule->dst.addr);
+			if (rule->overload_tbl)
+				pfr_detach_table(rule->overload_tbl);
+		}
+		TAILQ_REMOVE(rulequeue, rule, entries);
+		rule->entries.tqe_prev = NULL;
+		rule->nr = -1;
+	}
+
+	if (rule->states > 0 || rule->src_nodes > 0 ||
+	    rule->entries.tqe_prev != NULL)
+		return;
+	pf_tag_unref(rule->tag);
+	pf_tag_unref(rule->match_tag);
+#ifdef ALTQ
+	if (rule->pqid != rule->qid)
+		pf_qid_unref(rule->pqid);
+	pf_qid_unref(rule->qid);
+#endif
+	pf_rtlabel_remove(&rule->src.addr);
+	pf_rtlabel_remove(&rule->dst.addr);
+	pfi_dynaddr_remove(&rule->src.addr);
+	pfi_dynaddr_remove(&rule->dst.addr);
+	if (rulequeue == NULL) {
+		pf_tbladdr_remove(&rule->src.addr);
+		pf_tbladdr_remove(&rule->dst.addr);
+		if (rule->overload_tbl)
+			pfr_detach_table(rule->overload_tbl);
+	}
+	pfi_kif_unref(rule->kif, PFI_KIF_REF_RULE);
+	pf_anchor_remove(rule);
+	pf_empty_pool(&rule->rpool.list);
+	pool_put(&pf_rule_pl, rule);
+}
+
+u_int16_t
+tagname2tag(struct pf_tags *head, char *tagname)
+{
+	struct pf_tagname	*tag, *p = NULL;
+	u_int16_t		 new_tagid = 1;
+
+	TAILQ_FOREACH(tag, head, entries)
+		if (strcmp(tagname, tag->name) == 0) {
+			tag->ref++;
+			return (tag->tag);
+		}
+
+	/*
+	 * to avoid fragmentation, we do a linear search from the beginning
+	 * and take the first free slot we find. if there is none or the list
+	 * is empty, append a new entry at the end.
+	 */
+
+	/* new entry */
+	if (!TAILQ_EMPTY(head))
+		for (p = TAILQ_FIRST(head); p != NULL &&
+		    p->tag == new_tagid; p = TAILQ_NEXT(p, entries))
+			new_tagid = p->tag + 1;
+
+	if (new_tagid > TAGID_MAX)
+		return (0);
+
+	/* allocate and fill new struct pf_tagname */
+	tag = (struct pf_tagname *)malloc(sizeof(struct pf_tagname),
+	    M_TEMP, M_NOWAIT);
+	if (tag == NULL)
+		return (0);
+	bzero(tag, sizeof(struct pf_tagname));
+	strlcpy(tag->name, tagname, sizeof(tag->name));
+	tag->tag = new_tagid;
+	tag->ref++;
+
+	if (p != NULL)	/* insert new entry before p */
+		TAILQ_INSERT_BEFORE(p, tag, entries);
+	else	/* either list empty or no free slot in between */
+		TAILQ_INSERT_TAIL(head, tag, entries);
+
+	return (tag->tag);
+}
+
+void
+tag2tagname(struct pf_tags *head, u_int16_t tagid, char *p)
+{
+	struct pf_tagname	*tag;
+
+	TAILQ_FOREACH(tag, head, entries)
+		if (tag->tag == tagid) {
+			strlcpy(p, tag->name, PF_TAG_NAME_SIZE);
+			return;
+		}
+}
+
+void
+tag_unref(struct pf_tags *head, u_int16_t tag)
+{
+	struct pf_tagname	*p, *next;
+
+	if (tag == 0)
+		return;
+
+	for (p = TAILQ_FIRST(head); p != NULL; p = next) {
+		next = TAILQ_NEXT(p, entries);
+		if (tag == p->tag) {
+			if (--p->ref == 0) {
+				TAILQ_REMOVE(head, p, entries);
+				free(p, M_TEMP);
+			}
+			break;
+		}
+	}
+}
+
+u_int16_t
+pf_tagname2tag(char *tagname)
+{
+	return (tagname2tag(&pf_tags, tagname));
+}
+
+void
+pf_tag2tagname(u_int16_t tagid, char *p)
+{
+	tag2tagname(&pf_tags, tagid, p);
+}
+
+void
+pf_tag_ref(u_int16_t tag)
+{
+	struct pf_tagname *t;
+
+	TAILQ_FOREACH(t, &pf_tags, entries)
+		if (t->tag == tag)
+			break;
+	if (t != NULL)
+		t->ref++;
+}
+
+void
+pf_tag_unref(u_int16_t tag)
+{
+	tag_unref(&pf_tags, tag);
+}
+
+int
+pf_rtlabel_add(struct pf_addr_wrap *a)
+{
+#ifdef __FreeBSD__
+	/* XXX_IMPORT: later */
+	return (0);
+#else
+	if (a->type == PF_ADDR_RTLABEL &&
+	    (a->v.rtlabel = rtlabel_name2id(a->v.rtlabelname)) == 0)
+		return (-1);
+	return (0);
+#endif
+}
+
+void
+pf_rtlabel_remove(struct pf_addr_wrap *a)
+{
+#ifdef __FreeBSD__
+	/* XXX_IMPORT: later */
+#else
+	if (a->type == PF_ADDR_RTLABEL)
+		rtlabel_unref(a->v.rtlabel);
+#endif
+}
+
+void
+pf_rtlabel_copyout(struct pf_addr_wrap *a)
+{
+#ifdef __FreeBSD__
+	/* XXX_IMPORT: later */
+	if (a->type == PF_ADDR_RTLABEL && a->v.rtlabel)
+		strlcpy(a->v.rtlabelname, "?", sizeof(a->v.rtlabelname));
+#else
+	const char	*name;
+
+	if (a->type == PF_ADDR_RTLABEL && a->v.rtlabel) {
+		if ((name = rtlabel_id2name(a->v.rtlabel)) == NULL)
+			strlcpy(a->v.rtlabelname, "?",
+			    sizeof(a->v.rtlabelname));
+		else
+			strlcpy(a->v.rtlabelname, name,
+			    sizeof(a->v.rtlabelname));
+	}
+#endif
+}
+
+#ifdef ALTQ
+u_int32_t
+pf_qname2qid(char *qname)
+{
+	return ((u_int32_t)tagname2tag(&pf_qids, qname));
+}
+
+void
+pf_qid2qname(u_int32_t qid, char *p)
+{
+	tag2tagname(&pf_qids, (u_int16_t)qid, p);
+}
+
+void
+pf_qid_unref(u_int32_t qid)
+{
+	tag_unref(&pf_qids, (u_int16_t)qid);
+}
+
+int
+pf_begin_altq(u_int32_t *ticket)
+{
+	struct pf_altq	*altq;
+	int		 error = 0;
+
+	/* Purge the old altq list */
+	while ((altq = TAILQ_FIRST(pf_altqs_inactive)) != NULL) {
+		TAILQ_REMOVE(pf_altqs_inactive, altq, entries);
+#ifdef __FreeBSD__
+		if (altq->qname[0] == 0 &&
+		    (altq->local_flags & PFALTQ_FLAG_IF_REMOVED) == 0) {
+#else
+		if (altq->qname[0] == 0) {
+#endif
+			/* detach and destroy the discipline */
+			error = altq_remove(altq);
+		} else
+			pf_qid_unref(altq->qid);
+		pool_put(&pf_altq_pl, altq);
+	}
+	if (error)
+		return (error);
+	*ticket = ++ticket_altqs_inactive;
+	altqs_inactive_open = 1;
+	return (0);
+}
+
+int
+pf_rollback_altq(u_int32_t ticket)
+{
+	struct pf_altq	*altq;
+	int		 error = 0;
+
+	if (!altqs_inactive_open || ticket != ticket_altqs_inactive)
+		return (0);
+	/* Purge the old altq list */
+	while ((altq = TAILQ_FIRST(pf_altqs_inactive)) != NULL) {
+		TAILQ_REMOVE(pf_altqs_inactive, altq, entries);
+#ifdef __FreeBSD__
+		if (altq->qname[0] == 0 &&
+		    (altq->local_flags & PFALTQ_FLAG_IF_REMOVED) == 0) {
+#else
+		if (altq->qname[0] == 0) {
+#endif
+			/* detach and destroy the discipline */
+			error = altq_remove(altq);
+		} else
+			pf_qid_unref(altq->qid);
+		pool_put(&pf_altq_pl, altq);
+	}
+	altqs_inactive_open = 0;
+	return (error);
+}
+
+int
+pf_commit_altq(u_int32_t ticket)
+{
+	struct pf_altqqueue	*old_altqs;
+	struct pf_altq		*altq;
+	int			 s, err, error = 0;
+
+	if (!altqs_inactive_open || ticket != ticket_altqs_inactive)
+		return (EBUSY);
+
+	/* swap altqs, keep the old. */
+	s = splsoftnet();
+	old_altqs = pf_altqs_active;
+	pf_altqs_active = pf_altqs_inactive;
+	pf_altqs_inactive = old_altqs;
+	ticket_altqs_active = ticket_altqs_inactive;
+
+	/* Attach new disciplines */
+	TAILQ_FOREACH(altq, pf_altqs_active, entries) {
+#ifdef __FreeBSD__
+		if (altq->qname[0] == 0 &&
+		    (altq->local_flags & PFALTQ_FLAG_IF_REMOVED) == 0) {
+#else
+		if (altq->qname[0] == 0) {
+#endif
+			/* attach the discipline */
+			error = altq_pfattach(altq);
+			if (error == 0 && pf_altq_running)
+				error = pf_enable_altq(altq);
+			if (error != 0) {
+				splx(s);
+				return (error);
+			}
+		}
+	}
+
+	/* Purge the old altq list */
+	while ((altq = TAILQ_FIRST(pf_altqs_inactive)) != NULL) {
+		TAILQ_REMOVE(pf_altqs_inactive, altq, entries);
+#ifdef __FreeBSD__
+		if (altq->qname[0] == 0 &&
+		    (altq->local_flags & PFALTQ_FLAG_IF_REMOVED) == 0) {
+#else
+		if (altq->qname[0] == 0) {
+#endif
+			/* detach and destroy the discipline */
+			if (pf_altq_running)
+				error = pf_disable_altq(altq);
+			err = altq_pfdetach(altq);
+			if (err != 0 && error == 0)
+				error = err;
+			err = altq_remove(altq);
+			if (err != 0 && error == 0)
+				error = err;
+		} else
+			pf_qid_unref(altq->qid);
+		pool_put(&pf_altq_pl, altq);
+	}
+	splx(s);
+
+	altqs_inactive_open = 0;
+	return (error);
+}
+
+int
+pf_enable_altq(struct pf_altq *altq)
+{
+	struct ifnet		*ifp;
+	struct tb_profile	 tb;
+	int			 s, error = 0;
+
+	if ((ifp = ifunit(altq->ifname)) == NULL)
+		return (EINVAL);
+
+	if (ifp->if_snd.altq_type != ALTQT_NONE)
+		error = altq_enable(&ifp->if_snd);
+
+	/* set tokenbucket regulator */
+	if (error == 0 && ifp != NULL && ALTQ_IS_ENABLED(&ifp->if_snd)) {
+		tb.rate = altq->ifbandwidth;
+		tb.depth = altq->tbrsize;
+		s = splnet();
+#ifdef __FreeBSD__
+		PF_UNLOCK();
+#endif
+		error = tbr_set(&ifp->if_snd, &tb);
+#ifdef __FreeBSD__
+		PF_LOCK();
+#endif
+		splx(s);
+	}
+
+	return (error);
+}
+
+int
+pf_disable_altq(struct pf_altq *altq)
+{
+	struct ifnet		*ifp;
+	struct tb_profile	 tb;
+	int			 s, error;
+
+	if ((ifp = ifunit(altq->ifname)) == NULL)
+		return (EINVAL);
+
+	/*
+	 * when the discipline is no longer referenced, it was overridden
+	 * by a new one.  if so, just return.
+	 */
+	if (altq->altq_disc != ifp->if_snd.altq_disc)
+		return (0);
+
+	error = altq_disable(&ifp->if_snd);
+
+	if (error == 0) {
+		/* clear tokenbucket regulator */
+		tb.rate = 0;
+		s = splnet();
+#ifdef __FreeBSD__
+		PF_UNLOCK();
+#endif
+		error = tbr_set(&ifp->if_snd, &tb);
+#ifdef __FreeBSD__
+		PF_LOCK();
+#endif
+		splx(s);
+	}
+
+	return (error);
+}
+
+#ifdef __FreeBSD__
+void
+pf_altq_ifnet_event(struct ifnet *ifp, int remove)
+{
+	struct ifnet		*ifp1;
+	struct pf_altq		*a1, *a2, *a3;
+	u_int32_t		 ticket;
+	int			 error = 0;
+
+	/* Interrupt userland queue modifications */
+	if (altqs_inactive_open)
+		pf_rollback_altq(ticket_altqs_inactive);
+
+	/* Start new altq ruleset */
+	if (pf_begin_altq(&ticket))
+		return;
+
+	/* Copy the current active set */
+	TAILQ_FOREACH(a1, pf_altqs_active, entries) {
+		a2 = pool_get(&pf_altq_pl, PR_NOWAIT);
+		if (a2 == NULL) {
+			error = ENOMEM;
+			break;
+		}
+		bcopy(a1, a2, sizeof(struct pf_altq));
+
+		if (a2->qname[0] != 0) {
+			if ((a2->qid = pf_qname2qid(a2->qname)) == 0) {
+				error = EBUSY;
+				pool_put(&pf_altq_pl, a2);
+				break;
+			}
+			a2->altq_disc = NULL;
+			TAILQ_FOREACH(a3, pf_altqs_inactive, entries) {
+				if (strncmp(a3->ifname, a2->ifname,
+				    IFNAMSIZ) == 0 && a3->qname[0] == 0) {
+					a2->altq_disc = a3->altq_disc;
+					break;
+				}
+			}
+		}
+		/* Deactivate the interface in question */
+		a2->local_flags &= ~PFALTQ_FLAG_IF_REMOVED;
+		if ((ifp1 = ifunit(a2->ifname)) == NULL ||
+		    (remove && ifp1 == ifp)) {
+			a2->local_flags |= PFALTQ_FLAG_IF_REMOVED;
+		} else {
+			PF_UNLOCK();
+			error = altq_add(a2);
+			PF_LOCK();
+
+			if (ticket != ticket_altqs_inactive)
+				error = EBUSY;
+
+			if (error) {
+				pool_put(&pf_altq_pl, a2);
+				break;
+			}
+		}
+
+		TAILQ_INSERT_TAIL(pf_altqs_inactive, a2, entries);
+	}
+
+	if (error != 0)
+		pf_rollback_altq(ticket);
+	else
+		pf_commit_altq(ticket);
+}
+#endif
+#endif /* ALTQ */
+
+int
+pf_begin_rules(u_int32_t *ticket, int rs_num, const char *anchor)
+{
+	struct pf_ruleset	*rs;
+	struct pf_rule		*rule;
+
+	if (rs_num < 0 || rs_num >= PF_RULESET_MAX)
+		return (EINVAL);
+	rs = pf_find_or_create_ruleset(anchor);
+	if (rs == NULL)
+		return (EINVAL);
+	while ((rule = TAILQ_FIRST(rs->rules[rs_num].inactive.ptr)) != NULL) {
+		pf_rm_rule(rs->rules[rs_num].inactive.ptr, rule);
+		rs->rules[rs_num].inactive.rcount--;
+	}
+	*ticket = ++rs->rules[rs_num].inactive.ticket;
+	rs->rules[rs_num].inactive.open = 1;
+	return (0);
+}
+
+int
+pf_rollback_rules(u_int32_t ticket, int rs_num, char *anchor)
+{
+	struct pf_ruleset	*rs;
+	struct pf_rule		*rule;
+
+	if (rs_num < 0 || rs_num >= PF_RULESET_MAX)
+		return (EINVAL);
+	rs = pf_find_ruleset(anchor);
+	if (rs == NULL || !rs->rules[rs_num].inactive.open ||
+	    rs->rules[rs_num].inactive.ticket != ticket)
+		return (0);
+	while ((rule = TAILQ_FIRST(rs->rules[rs_num].inactive.ptr)) != NULL) {
+		pf_rm_rule(rs->rules[rs_num].inactive.ptr, rule);
+		rs->rules[rs_num].inactive.rcount--;
+	}
+	rs->rules[rs_num].inactive.open = 0;
+	return (0);
+}
+
+#define PF_MD5_UPD(st, elm)						\
+		MD5Update(ctx, (u_int8_t *) &(st)->elm, sizeof((st)->elm))
+
+#define PF_MD5_UPD_STR(st, elm)						\
+		MD5Update(ctx, (u_int8_t *) (st)->elm, strlen((st)->elm))
+
+#define PF_MD5_UPD_HTONL(st, elm, stor) do {				\
+		(stor) = htonl((st)->elm);				\
+		MD5Update(ctx, (u_int8_t *) &(stor), sizeof(u_int32_t));\
+} while (0)
+
+#define PF_MD5_UPD_HTONS(st, elm, stor) do {				\
+		(stor) = htons((st)->elm);				\
+		MD5Update(ctx, (u_int8_t *) &(stor), sizeof(u_int16_t));\
+} while (0)
+
+void
+pf_hash_rule_addr(MD5_CTX *ctx, struct pf_rule_addr *pfr)
+{
+	PF_MD5_UPD(pfr, addr.type);
+	switch (pfr->addr.type) {
+		case PF_ADDR_DYNIFTL:
+			PF_MD5_UPD(pfr, addr.v.ifname);
+			PF_MD5_UPD(pfr, addr.iflags);
+			break;
+		case PF_ADDR_TABLE:
+			PF_MD5_UPD(pfr, addr.v.tblname);
+			break;
+		case PF_ADDR_ADDRMASK:
+			/* XXX ignore af? */
+			PF_MD5_UPD(pfr, addr.v.a.addr.addr32);
+			PF_MD5_UPD(pfr, addr.v.a.mask.addr32);
+			break;
+		case PF_ADDR_RTLABEL:
+			PF_MD5_UPD(pfr, addr.v.rtlabelname);
+			break;
+	}
+
+	PF_MD5_UPD(pfr, port[0]);
+	PF_MD5_UPD(pfr, port[1]);
+	PF_MD5_UPD(pfr, neg);
+	PF_MD5_UPD(pfr, port_op);
+}
+
+void
+pf_hash_rule(MD5_CTX *ctx, struct pf_rule *rule)
+{
+	u_int16_t x;
+	u_int32_t y;
+
+	pf_hash_rule_addr(ctx, &rule->src);
+	pf_hash_rule_addr(ctx, &rule->dst);
+	PF_MD5_UPD_STR(rule, label);
+	PF_MD5_UPD_STR(rule, ifname);
+	PF_MD5_UPD_STR(rule, match_tagname);
+	PF_MD5_UPD_HTONS(rule, match_tag, x); /* dup? */
+	PF_MD5_UPD_HTONL(rule, os_fingerprint, y);
+	PF_MD5_UPD_HTONL(rule, prob, y);
+	PF_MD5_UPD_HTONL(rule, uid.uid[0], y);
+	PF_MD5_UPD_HTONL(rule, uid.uid[1], y);
+	PF_MD5_UPD(rule, uid.op);
+	PF_MD5_UPD_HTONL(rule, gid.gid[0], y);
+	PF_MD5_UPD_HTONL(rule, gid.gid[1], y);
+	PF_MD5_UPD(rule, gid.op);
+	PF_MD5_UPD_HTONL(rule, rule_flag, y);
+	PF_MD5_UPD(rule, action);
+	PF_MD5_UPD(rule, direction);
+	PF_MD5_UPD(rule, af);
+	PF_MD5_UPD(rule, quick);
+	PF_MD5_UPD(rule, ifnot);
+	PF_MD5_UPD(rule, match_tag_not);
+	PF_MD5_UPD(rule, natpass);
+	PF_MD5_UPD(rule, keep_state);
+	PF_MD5_UPD(rule, proto);
+	PF_MD5_UPD(rule, type);
+	PF_MD5_UPD(rule, code);
+	PF_MD5_UPD(rule, flags);
+	PF_MD5_UPD(rule, flagset);
+	PF_MD5_UPD(rule, allow_opts);
+	PF_MD5_UPD(rule, rt);
+	PF_MD5_UPD(rule, tos);
+}
+
+int
+pf_commit_rules(u_int32_t ticket, int rs_num, char *anchor)
+{
+	struct pf_ruleset	*rs;
+	struct pf_rule		*rule, **old_array;
+	struct pf_rulequeue	*old_rules;
+	int			 s, error;
+	u_int32_t		 old_rcount;
+
+	if (rs_num < 0 || rs_num >= PF_RULESET_MAX)
+		return (EINVAL);
+	rs = pf_find_ruleset(anchor);
+	if (rs == NULL || !rs->rules[rs_num].inactive.open ||
+	    ticket != rs->rules[rs_num].inactive.ticket)
+		return (EBUSY);
+
+	/* Calculate checksum for the main ruleset */
+	if (rs == &pf_main_ruleset) {
+		error = pf_setup_pfsync_matching(rs);
+		if (error != 0)
+			return (error);
+	}
+
+	/* Swap rules, keep the old. */
+	s = splsoftnet();
+	old_rules = rs->rules[rs_num].active.ptr;
+	old_rcount = rs->rules[rs_num].active.rcount;
+	old_array = rs->rules[rs_num].active.ptr_array;
+
+	rs->rules[rs_num].active.ptr =
+	    rs->rules[rs_num].inactive.ptr;
+	rs->rules[rs_num].active.ptr_array =
+	    rs->rules[rs_num].inactive.ptr_array;
+	rs->rules[rs_num].active.rcount =
+	    rs->rules[rs_num].inactive.rcount;
+	rs->rules[rs_num].inactive.ptr = old_rules;
+	rs->rules[rs_num].inactive.ptr_array = old_array;
+	rs->rules[rs_num].inactive.rcount = old_rcount;
+
+	rs->rules[rs_num].active.ticket =
+	    rs->rules[rs_num].inactive.ticket;
+	pf_calc_skip_steps(rs->rules[rs_num].active.ptr);
+
+
+	/* Purge the old rule list. */
+	while ((rule = TAILQ_FIRST(old_rules)) != NULL)
+		pf_rm_rule(old_rules, rule);
+	if (rs->rules[rs_num].inactive.ptr_array)
+		free(rs->rules[rs_num].inactive.ptr_array, M_TEMP);
+	rs->rules[rs_num].inactive.ptr_array = NULL;
+	rs->rules[rs_num].inactive.rcount = 0;
+	rs->rules[rs_num].inactive.open = 0;
+	pf_remove_if_empty_ruleset(rs);
+	splx(s);
+	return (0);
+}
+
+int
+pf_setup_pfsync_matching(struct pf_ruleset *rs)
+{
+	MD5_CTX			 ctx;
+	struct pf_rule		*rule;
+	int			 rs_cnt;
+	u_int8_t		 digest[PF_MD5_DIGEST_LENGTH];
+
+	MD5Init(&ctx);
+	for (rs_cnt = 0; rs_cnt < PF_RULESET_MAX; rs_cnt++) {
+		/* XXX PF_RULESET_SCRUB as well? */
+		if (rs_cnt == PF_RULESET_SCRUB)
+			continue;
+
+		if (rs->rules[rs_cnt].inactive.ptr_array)
+			free(rs->rules[rs_cnt].inactive.ptr_array, M_TEMP);
+		rs->rules[rs_cnt].inactive.ptr_array = NULL;
+
+		if (rs->rules[rs_cnt].inactive.rcount) {
+			rs->rules[rs_cnt].inactive.ptr_array =
+			    malloc(sizeof(caddr_t) *
+			    rs->rules[rs_cnt].inactive.rcount,
+			    M_TEMP, M_NOWAIT);
+
+			if (!rs->rules[rs_cnt].inactive.ptr_array)
+				return (ENOMEM);
+		}
+
+		TAILQ_FOREACH(rule, rs->rules[rs_cnt].inactive.ptr,
+		    entries) {
+			pf_hash_rule(&ctx, rule);
+			(rs->rules[rs_cnt].inactive.ptr_array)[rule->nr] = rule;
+		}
+	}
+
+	MD5Final(digest, &ctx);
+	memcpy(pf_status.pf_chksum, digest, sizeof(pf_status.pf_chksum));
+	return (0);
+}
+
+int
+#ifdef __FreeBSD__
+pfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td)
+#else
+pfioctl(dev_t dev, u_long cmd, caddr_t addr, int flags, struct proc *p)
+#endif
+{
+	struct pf_pooladdr	*pa = NULL;
+	struct pf_pool		*pool = NULL;
+#ifndef __FreeBSD__
+	int			 s;
+#endif
+	int			 error = 0;
+
+	/* XXX keep in sync with switch() below */
+#ifdef __FreeBSD__
+	if (securelevel_gt(td->td_ucred, 2))
+#else
+	if (securelevel > 1)
+#endif
+		switch (cmd) {
+		case DIOCGETRULES:
+		case DIOCGETRULE:
+		case DIOCGETADDRS:
+		case DIOCGETADDR:
+		case DIOCGETSTATE:
+		case DIOCSETSTATUSIF:
+		case DIOCGETSTATUS:
+		case DIOCCLRSTATUS:
+		case DIOCNATLOOK:
+		case DIOCSETDEBUG:
+		case DIOCGETSTATES:
+		case DIOCGETTIMEOUT:
+		case DIOCCLRRULECTRS:
+		case DIOCGETLIMIT:
+		case DIOCGETALTQS:
+		case DIOCGETALTQ:
+		case DIOCGETQSTATS:
+		case DIOCGETRULESETS:
+		case DIOCGETRULESET:
+		case DIOCRGETTABLES:
+		case DIOCRGETTSTATS:
+		case DIOCRCLRTSTATS:
+		case DIOCRCLRADDRS:
+		case DIOCRADDADDRS:
+		case DIOCRDELADDRS:
+		case DIOCRSETADDRS:
+		case DIOCRGETADDRS:
+		case DIOCRGETASTATS:
+		case DIOCRCLRASTATS:
+		case DIOCRTSTADDRS:
+		case DIOCOSFPGET:
+		case DIOCGETSRCNODES:
+		case DIOCCLRSRCNODES:
+		case DIOCIGETIFACES:
+#ifdef __FreeBSD__
+		case DIOCGIFSPEED:
+#endif
+		case DIOCSETIFFLAG:
+		case DIOCCLRIFFLAG:
+			break;
+		case DIOCRCLRTABLES:
+		case DIOCRADDTABLES:
+		case DIOCRDELTABLES:
+		case DIOCRSETTFLAGS:
+			if (((struct pfioc_table *)addr)->pfrio_flags &
+			    PFR_FLAG_DUMMY)
+				break; /* dummy operation ok */
+			return (EPERM);
+		default:
+			return (EPERM);
+		}
+
+	if (!(flags & FWRITE))
+		switch (cmd) {
+		case DIOCGETRULES:
+		case DIOCGETADDRS:
+		case DIOCGETADDR:
+		case DIOCGETSTATE:
+		case DIOCGETSTATUS:
+		case DIOCGETSTATES:
+		case DIOCGETTIMEOUT:
+		case DIOCGETLIMIT:
+		case DIOCGETALTQS:
+		case DIOCGETALTQ:
+		case DIOCGETQSTATS:
+		case DIOCGETRULESETS:
+		case DIOCGETRULESET:
+		case DIOCNATLOOK:
+		case DIOCRGETTABLES:
+		case DIOCRGETTSTATS:
+		case DIOCRGETADDRS:
+		case DIOCRGETASTATS:
+		case DIOCRTSTADDRS:
+		case DIOCOSFPGET:
+		case DIOCGETSRCNODES:
+		case DIOCIGETIFACES:
+#ifdef __FreeBSD__
+		case DIOCGIFSPEED:
+#endif
+			break;
+		case DIOCRCLRTABLES:
+		case DIOCRADDTABLES:
+		case DIOCRDELTABLES:
+		case DIOCRCLRTSTATS:
+		case DIOCRCLRADDRS:
+		case DIOCRADDADDRS:
+		case DIOCRDELADDRS:
+		case DIOCRSETADDRS:
+		case DIOCRSETTFLAGS:
+			if (((struct pfioc_table *)addr)->pfrio_flags &
+			    PFR_FLAG_DUMMY) {
+				flags |= FWRITE; /* need write lock for dummy */
+				break; /* dummy operation ok */
+			}
+			return (EACCES);
+		case DIOCGETRULE:
+			if (((struct pfioc_rule *)addr)->action == PF_GET_CLR_CNTR)
+				return (EACCES);
+			break;
+		default:
+			return (EACCES);
+		}
+
+	if (flags & FWRITE)
+#ifdef __FreeBSD__
+		sx_xlock(&pf_consistency_lock);
+	else
+		sx_slock(&pf_consistency_lock);
+#else
+		rw_enter_write(&pf_consistency_lock);
+	else
+		rw_enter_read(&pf_consistency_lock);
+#endif
+
+#ifdef __FreeBSD__
+	PF_LOCK();
+#else
+	s = splsoftnet();
+#endif
+	switch (cmd) {
+
+	case DIOCSTART:
+		if (pf_status.running)
+			error = EEXIST;
+		else {
+#ifdef __FreeBSD__
+			PF_UNLOCK();
+			error = hook_pf();
+			PF_LOCK();
+			if (error) {
+				DPFPRINTF(PF_DEBUG_MISC,
+				    ("pf: pfil registeration fail\n"));
+				break;
+			}
+#endif
+			pf_status.running = 1;
+			pf_status.since = time_second;
+			if (pf_status.stateid == 0) {
+				pf_status.stateid = time_second;
+				pf_status.stateid = pf_status.stateid << 32;
+			}
+			DPFPRINTF(PF_DEBUG_MISC, ("pf: started\n"));
+		}
+		break;
+
+	case DIOCSTOP:
+		if (!pf_status.running)
+			error = ENOENT;
+		else {
+			pf_status.running = 0;
+#ifdef __FreeBSD__
+			PF_UNLOCK();
+			error = dehook_pf();
+			PF_LOCK();
+			if (error) {
+				pf_status.running = 1;
+				DPFPRINTF(PF_DEBUG_MISC,
+					("pf: pfil unregisteration failed\n"));
+			}
+#endif
+			pf_status.since = time_second;
+			DPFPRINTF(PF_DEBUG_MISC, ("pf: stopped\n"));
+		}
+		break;
+
+	case DIOCADDRULE: {
+		struct pfioc_rule	*pr = (struct pfioc_rule *)addr;
+		struct pf_ruleset	*ruleset;
+		struct pf_rule		*rule, *tail;
+		struct pf_pooladdr	*pa;
+		int			 rs_num;
+
+		pr->anchor[sizeof(pr->anchor) - 1] = 0;
+		ruleset = pf_find_ruleset(pr->anchor);
+		if (ruleset == NULL) {
+			error = EINVAL;
+			break;
+		}
+		rs_num = pf_get_ruleset_number(pr->rule.action);
+		if (rs_num >= PF_RULESET_MAX) {
+			error = EINVAL;
+			break;
+		}
+		if (pr->rule.return_icmp >> 8 > ICMP_MAXTYPE) {
+			error = EINVAL;
+			break;
+		}
+		if (pr->ticket != ruleset->rules[rs_num].inactive.ticket) {
+#ifdef __FreeBSD__
+			DPFPRINTF(PF_DEBUG_MISC,
+			    ("ticket: %d != [%d]%d\n", pr->ticket, rs_num,
+			    ruleset->rules[rs_num].inactive.ticket));
+#endif
+			error = EBUSY;
+			break;
+		}
+		if (pr->pool_ticket != ticket_pabuf) {
+#ifdef __FreeBSD__
+			DPFPRINTF(PF_DEBUG_MISC,
+			    ("pool_ticket: %d != %d\n", pr->pool_ticket,
+			    ticket_pabuf));
+#endif
+			error = EBUSY;
+			break;
+		}
+		rule = pool_get(&pf_rule_pl, PR_NOWAIT);
+		if (rule == NULL) {
+			error = ENOMEM;
+			break;
+		}
+		bcopy(&pr->rule, rule, sizeof(struct pf_rule));
+#ifdef __FreeBSD__
+		rule->cuid = td->td_ucred->cr_ruid;
+		rule->cpid = td->td_proc ? td->td_proc->p_pid : 0;
+#else
+		rule->cuid = p->p_cred->p_ruid;
+		rule->cpid = p->p_pid;
+#endif
+		rule->anchor = NULL;
+		rule->kif = NULL;
+		TAILQ_INIT(&rule->rpool.list);
+		/* initialize refcounting */
+		rule->states = 0;
+		rule->src_nodes = 0;
+		rule->entries.tqe_prev = NULL;
+#ifndef INET
+		if (rule->af == AF_INET) {
+			pool_put(&pf_rule_pl, rule);
+			error = EAFNOSUPPORT;
+			break;
+		}
+#endif /* INET */
+#ifndef INET6
+		if (rule->af == AF_INET6) {
+			pool_put(&pf_rule_pl, rule);
+			error = EAFNOSUPPORT;
+			break;
+		}
+#endif /* INET6 */
+		tail = TAILQ_LAST(ruleset->rules[rs_num].inactive.ptr,
+		    pf_rulequeue);
+		if (tail)
+			rule->nr = tail->nr + 1;
+		else
+			rule->nr = 0;
+		if (rule->ifname[0]) {
+			rule->kif = pfi_kif_get(rule->ifname);
+			if (rule->kif == NULL) {
+				pool_put(&pf_rule_pl, rule);
+				error = EINVAL;
+				break;
+			}
+			pfi_kif_ref(rule->kif, PFI_KIF_REF_RULE);
+		}
+
+#ifdef __FreeBSD__ /* ROUTING */
+		if (rule->rtableid > 0 && rule->rtableid > rt_numfibs)
+#else
+		if (rule->rtableid > 0 && !rtable_exists(rule->rtableid))
+#endif
+			error = EBUSY;
+
+#ifdef ALTQ
+		/* set queue IDs */
+		if (rule->qname[0] != 0) {
+			if ((rule->qid = pf_qname2qid(rule->qname)) == 0)
+				error = EBUSY;
+			else if (rule->pqname[0] != 0) {
+				if ((rule->pqid =
+				    pf_qname2qid(rule->pqname)) == 0)
+					error = EBUSY;
+			} else
+				rule->pqid = rule->qid;
+		}
+#endif
+		if (rule->tagname[0])
+			if ((rule->tag = pf_tagname2tag(rule->tagname)) == 0)
+				error = EBUSY;
+		if (rule->match_tagname[0])
+			if ((rule->match_tag =
+			    pf_tagname2tag(rule->match_tagname)) == 0)
+				error = EBUSY;
+		if (rule->rt && !rule->direction)
+			error = EINVAL;
+#if NPFLOG > 0
+#ifdef __FreeBSD__
+		if (!rule->log)
+			rule->logif = 0;
+#endif
+		if (rule->logif >= PFLOGIFS_MAX)
+			error = EINVAL;
+#endif
+		if (pf_rtlabel_add(&rule->src.addr) ||
+		    pf_rtlabel_add(&rule->dst.addr))
+			error = EBUSY;
+		if (pfi_dynaddr_setup(&rule->src.addr, rule->af))
+			error = EINVAL;
+		if (pfi_dynaddr_setup(&rule->dst.addr, rule->af))
+			error = EINVAL;
+		if (pf_tbladdr_setup(ruleset, &rule->src.addr))
+			error = EINVAL;
+		if (pf_tbladdr_setup(ruleset, &rule->dst.addr))
+			error = EINVAL;
+		if (pf_anchor_setup(rule, ruleset, pr->anchor_call))
+			error = EINVAL;
+		TAILQ_FOREACH(pa, &pf_pabuf, entries)
+			if (pf_tbladdr_setup(ruleset, &pa->addr))
+				error = EINVAL;
+
+		if (rule->overload_tblname[0]) {
+			if ((rule->overload_tbl = pfr_attach_table(ruleset,
+			    rule->overload_tblname)) == NULL)
+				error = EINVAL;
+			else
+				rule->overload_tbl->pfrkt_flags |=
+				    PFR_TFLAG_ACTIVE;
+		}
+
+		pf_mv_pool(&pf_pabuf, &rule->rpool.list);
+		if (((((rule->action == PF_NAT) || (rule->action == PF_RDR) ||
+		    (rule->action == PF_BINAT)) && rule->anchor == NULL) ||
+		    (rule->rt > PF_FASTROUTE)) &&
+		    (TAILQ_FIRST(&rule->rpool.list) == NULL))
+			error = EINVAL;
+
+		if (error) {
+			pf_rm_rule(NULL, rule);
+			break;
+		}
+
+#ifdef __FreeBSD__
+		if (!debug_pfugidhack && (rule->uid.op || rule->gid.op ||
+		    rule->log & PF_LOG_SOCKET_LOOKUP)) {
+			DPFPRINTF(PF_DEBUG_MISC,
+			    ("pf: debug.pfugidhack enabled\n"));
+			debug_pfugidhack = 1;
+		}
+#endif
+
+		rule->rpool.cur = TAILQ_FIRST(&rule->rpool.list);
+		rule->evaluations = rule->packets[0] = rule->packets[1] =
+		    rule->bytes[0] = rule->bytes[1] = 0;
+		TAILQ_INSERT_TAIL(ruleset->rules[rs_num].inactive.ptr,
+		    rule, entries);
+		ruleset->rules[rs_num].inactive.rcount++;
+		break;
+	}
+
+	case DIOCGETRULES: {
+		struct pfioc_rule	*pr = (struct pfioc_rule *)addr;
+		struct pf_ruleset	*ruleset;
+		struct pf_rule		*tail;
+		int			 rs_num;
+
+		pr->anchor[sizeof(pr->anchor) - 1] = 0;
+		ruleset = pf_find_ruleset(pr->anchor);
+		if (ruleset == NULL) {
+			error = EINVAL;
+			break;
+		}
+		rs_num = pf_get_ruleset_number(pr->rule.action);
+		if (rs_num >= PF_RULESET_MAX) {
+			error = EINVAL;
+			break;
+		}
+		tail = TAILQ_LAST(ruleset->rules[rs_num].active.ptr,
+		    pf_rulequeue);
+		if (tail)
+			pr->nr = tail->nr + 1;
+		else
+			pr->nr = 0;
+		pr->ticket = ruleset->rules[rs_num].active.ticket;
+		break;
+	}
+
+	case DIOCGETRULE: {
+		struct pfioc_rule	*pr = (struct pfioc_rule *)addr;
+		struct pf_ruleset	*ruleset;
+		struct pf_rule		*rule;
+		int			 rs_num, i;
+
+		pr->anchor[sizeof(pr->anchor) - 1] = 0;
+		ruleset = pf_find_ruleset(pr->anchor);
+		if (ruleset == NULL) {
+			error = EINVAL;
+			break;
+		}
+		rs_num = pf_get_ruleset_number(pr->rule.action);
+		if (rs_num >= PF_RULESET_MAX) {
+			error = EINVAL;
+			break;
+		}
+		if (pr->ticket != ruleset->rules[rs_num].active.ticket) {
+			error = EBUSY;
+			break;
+		}
+		rule = TAILQ_FIRST(ruleset->rules[rs_num].active.ptr);
+		while ((rule != NULL) && (rule->nr != pr->nr))
+			rule = TAILQ_NEXT(rule, entries);
+		if (rule == NULL) {
+			error = EBUSY;
+			break;
+		}
+		bcopy(rule, &pr->rule, sizeof(struct pf_rule));
+		if (pf_anchor_copyout(ruleset, rule, pr)) {
+			error = EBUSY;
+			break;
+		}
+		pfi_dynaddr_copyout(&pr->rule.src.addr);
+		pfi_dynaddr_copyout(&pr->rule.dst.addr);
+		pf_tbladdr_copyout(&pr->rule.src.addr);
+		pf_tbladdr_copyout(&pr->rule.dst.addr);
+		pf_rtlabel_copyout(&pr->rule.src.addr);
+		pf_rtlabel_copyout(&pr->rule.dst.addr);
+		for (i = 0; i < PF_SKIP_COUNT; ++i)
+			if (rule->skip[i].ptr == NULL)
+				pr->rule.skip[i].nr = -1;
+			else
+				pr->rule.skip[i].nr =
+				    rule->skip[i].ptr->nr;
+
+		if (pr->action == PF_GET_CLR_CNTR) {
+			rule->evaluations = 0;
+			rule->packets[0] = rule->packets[1] = 0;
+			rule->bytes[0] = rule->bytes[1] = 0;
+		}
+		break;
+	}
+
+	case DIOCCHANGERULE: {
+		struct pfioc_rule	*pcr = (struct pfioc_rule *)addr;
+		struct pf_ruleset	*ruleset;
+		struct pf_rule		*oldrule = NULL, *newrule = NULL;
+		u_int32_t		 nr = 0;
+		int			 rs_num;
+
+		if (!(pcr->action == PF_CHANGE_REMOVE ||
+		    pcr->action == PF_CHANGE_GET_TICKET) &&
+		    pcr->pool_ticket != ticket_pabuf) {
+			error = EBUSY;
+			break;
+		}
+
+		if (pcr->action < PF_CHANGE_ADD_HEAD ||
+		    pcr->action > PF_CHANGE_GET_TICKET) {
+			error = EINVAL;
+			break;
+		}
+		ruleset = pf_find_ruleset(pcr->anchor);
+		if (ruleset == NULL) {
+			error = EINVAL;
+			break;
+		}
+		rs_num = pf_get_ruleset_number(pcr->rule.action);
+		if (rs_num >= PF_RULESET_MAX) {
+			error = EINVAL;
+			break;
+		}
+
+		if (pcr->action == PF_CHANGE_GET_TICKET) {
+			pcr->ticket = ++ruleset->rules[rs_num].active.ticket;
+			break;
+		} else {
+			if (pcr->ticket !=
+			    ruleset->rules[rs_num].active.ticket) {
+				error = EINVAL;
+				break;
+			}
+			if (pcr->rule.return_icmp >> 8 > ICMP_MAXTYPE) {
+				error = EINVAL;
+				break;
+			}
+		}
+
+		if (pcr->action != PF_CHANGE_REMOVE) {
+			newrule = pool_get(&pf_rule_pl, PR_NOWAIT);
+			if (newrule == NULL) {
+				error = ENOMEM;
+				break;
+			}
+			bcopy(&pcr->rule, newrule, sizeof(struct pf_rule));
+#ifdef __FreeBSD__
+			newrule->cuid = td->td_ucred->cr_ruid;
+			newrule->cpid = td->td_proc ? td->td_proc->p_pid : 0;
+#else
+			newrule->cuid = p->p_cred->p_ruid;
+			newrule->cpid = p->p_pid;
+#endif
+			TAILQ_INIT(&newrule->rpool.list);
+			/* initialize refcounting */
+			newrule->states = 0;
+			newrule->entries.tqe_prev = NULL;
+#ifndef INET
+			if (newrule->af == AF_INET) {
+				pool_put(&pf_rule_pl, newrule);
+				error = EAFNOSUPPORT;
+				break;
+			}
+#endif /* INET */
+#ifndef INET6
+			if (newrule->af == AF_INET6) {
+				pool_put(&pf_rule_pl, newrule);
+				error = EAFNOSUPPORT;
+				break;
+			}
+#endif /* INET6 */
+			if (newrule->ifname[0]) {
+				newrule->kif = pfi_kif_get(newrule->ifname);
+				if (newrule->kif == NULL) {
+					pool_put(&pf_rule_pl, newrule);
+					error = EINVAL;
+					break;
+				}
+				pfi_kif_ref(newrule->kif, PFI_KIF_REF_RULE);
+			} else
+				newrule->kif = NULL;
+
+			if (newrule->rtableid > 0 &&
+#ifdef __FreeBSD__ /* ROUTING */
+			    newrule->rtableid > rt_numfibs)
+#else
+			    !rtable_exists(newrule->rtableid))
+#endif
+				error = EBUSY;
+
+#ifdef ALTQ
+			/* set queue IDs */
+			if (newrule->qname[0] != 0) {
+				if ((newrule->qid =
+				    pf_qname2qid(newrule->qname)) == 0)
+					error = EBUSY;
+				else if (newrule->pqname[0] != 0) {
+					if ((newrule->pqid =
+					    pf_qname2qid(newrule->pqname)) == 0)
+						error = EBUSY;
+				} else
+					newrule->pqid = newrule->qid;
+			}
+#endif /* ALTQ */
+			if (newrule->tagname[0])
+				if ((newrule->tag =
+				    pf_tagname2tag(newrule->tagname)) == 0)
+					error = EBUSY;
+			if (newrule->match_tagname[0])
+				if ((newrule->match_tag = pf_tagname2tag(
+				    newrule->match_tagname)) == 0)
+					error = EBUSY;
+			if (newrule->rt && !newrule->direction)
+				error = EINVAL;
+#ifdef __FreeBSD__
+#if NPFLOG > 0
+			if (!newrule->log)
+				newrule->logif = 0;
+			if (newrule->logif >= PFLOGIFS_MAX)
+				error = EINVAL;
+#endif
+#endif
+			if (pf_rtlabel_add(&newrule->src.addr) ||
+			    pf_rtlabel_add(&newrule->dst.addr))
+				error = EBUSY;
+			if (pfi_dynaddr_setup(&newrule->src.addr, newrule->af))
+				error = EINVAL;
+			if (pfi_dynaddr_setup(&newrule->dst.addr, newrule->af))
+				error = EINVAL;
+			if (pf_tbladdr_setup(ruleset, &newrule->src.addr))
+				error = EINVAL;
+			if (pf_tbladdr_setup(ruleset, &newrule->dst.addr))
+				error = EINVAL;
+			if (pf_anchor_setup(newrule, ruleset, pcr->anchor_call))
+				error = EINVAL;
+			TAILQ_FOREACH(pa, &pf_pabuf, entries)
+				if (pf_tbladdr_setup(ruleset, &pa->addr))
+					error = EINVAL;
+
+			if (newrule->overload_tblname[0]) {
+				if ((newrule->overload_tbl = pfr_attach_table(
+				    ruleset, newrule->overload_tblname)) ==
+				    NULL)
+					error = EINVAL;
+				else
+					newrule->overload_tbl->pfrkt_flags |=
+					    PFR_TFLAG_ACTIVE;
+			}
+
+			pf_mv_pool(&pf_pabuf, &newrule->rpool.list);
+			if (((((newrule->action == PF_NAT) ||
+			    (newrule->action == PF_RDR) ||
+			    (newrule->action == PF_BINAT) ||
+			    (newrule->rt > PF_FASTROUTE)) &&
+			    !newrule->anchor)) &&
+			    (TAILQ_FIRST(&newrule->rpool.list) == NULL))
+				error = EINVAL;
+
+			if (error) {
+				pf_rm_rule(NULL, newrule);
+				break;
+			}
+
+#ifdef __FreeBSD__
+			if (!debug_pfugidhack && (newrule->uid.op ||
+			    newrule->gid.op ||
+			    newrule->log & PF_LOG_SOCKET_LOOKUP)) {
+				DPFPRINTF(PF_DEBUG_MISC,
+				    ("pf: debug.pfugidhack enabled\n"));
+				debug_pfugidhack = 1;
+			}
+#endif
+
+			newrule->rpool.cur = TAILQ_FIRST(&newrule->rpool.list);
+			newrule->evaluations = 0;
+			newrule->packets[0] = newrule->packets[1] = 0;
+			newrule->bytes[0] = newrule->bytes[1] = 0;
+		}
+		pf_empty_pool(&pf_pabuf);
+
+		if (pcr->action == PF_CHANGE_ADD_HEAD)
+			oldrule = TAILQ_FIRST(
+			    ruleset->rules[rs_num].active.ptr);
+		else if (pcr->action == PF_CHANGE_ADD_TAIL)
+			oldrule = TAILQ_LAST(
+			    ruleset->rules[rs_num].active.ptr, pf_rulequeue);
+		else {
+			oldrule = TAILQ_FIRST(
+			    ruleset->rules[rs_num].active.ptr);
+			while ((oldrule != NULL) && (oldrule->nr != pcr->nr))
+				oldrule = TAILQ_NEXT(oldrule, entries);
+			if (oldrule == NULL) {
+				if (newrule != NULL)
+					pf_rm_rule(NULL, newrule);
+				error = EINVAL;
+				break;
+			}
+		}
+
+		if (pcr->action == PF_CHANGE_REMOVE) {
+			pf_rm_rule(ruleset->rules[rs_num].active.ptr, oldrule);
+			ruleset->rules[rs_num].active.rcount--;
+		} else {
+			if (oldrule == NULL)
+				TAILQ_INSERT_TAIL(
+				    ruleset->rules[rs_num].active.ptr,
+				    newrule, entries);
+			else if (pcr->action == PF_CHANGE_ADD_HEAD ||
+			    pcr->action == PF_CHANGE_ADD_BEFORE)
+				TAILQ_INSERT_BEFORE(oldrule, newrule, entries);
+			else
+				TAILQ_INSERT_AFTER(
+				    ruleset->rules[rs_num].active.ptr,
+				    oldrule, newrule, entries);
+			ruleset->rules[rs_num].active.rcount++;
+		}
+
+		nr = 0;
+		TAILQ_FOREACH(oldrule,
+		    ruleset->rules[rs_num].active.ptr, entries)
+			oldrule->nr = nr++;
+
+		ruleset->rules[rs_num].active.ticket++;
+
+		pf_calc_skip_steps(ruleset->rules[rs_num].active.ptr);
+		pf_remove_if_empty_ruleset(ruleset);
+
+		break;
+	}
+
+	case DIOCCLRSTATES: {
+		struct pf_state		*state, *nexts;
+		struct pfioc_state_kill *psk = (struct pfioc_state_kill *)addr;
+		int			 killed = 0;
+
+		for (state = RB_MIN(pf_state_tree_id, &tree_id); state;
+		    state = nexts) {
+			nexts = RB_NEXT(pf_state_tree_id, &tree_id, state);
+
+			if (!psk->psk_ifname[0] || !strcmp(psk->psk_ifname,
+			    state->u.s.kif->pfik_name)) {
+#if NPFSYNC
+				/* don't send out individual delete messages */
+				state->sync_flags = PFSTATE_NOSYNC;
+#endif
+				pf_unlink_state(state);
+				killed++;
+			}
+		}
+		psk->psk_af = killed;
+#if NPFSYNC
+		pfsync_clear_states(pf_status.hostid, psk->psk_ifname);
+#endif
+		break;
+	}
+
+	case DIOCKILLSTATES: {
+		struct pf_state		*state, *nexts;
+		struct pf_state_host	*src, *dst;
+		struct pfioc_state_kill	*psk = (struct pfioc_state_kill *)addr;
+		int			 killed = 0;
+
+		for (state = RB_MIN(pf_state_tree_id, &tree_id); state;
+		    state = nexts) {
+			nexts = RB_NEXT(pf_state_tree_id, &tree_id, state);
+
+			if (state->direction == PF_OUT) {
+				src = &state->lan;
+				dst = &state->ext;
+			} else {
+				src = &state->ext;
+				dst = &state->lan;
+			}
+			if ((!psk->psk_af || state->af == psk->psk_af)
+			    && (!psk->psk_proto || psk->psk_proto ==
+			    state->proto) &&
+			    PF_MATCHA(psk->psk_src.neg,
+			    &psk->psk_src.addr.v.a.addr,
+			    &psk->psk_src.addr.v.a.mask,
+			    &src->addr, state->af) &&
+			    PF_MATCHA(psk->psk_dst.neg,
+			    &psk->psk_dst.addr.v.a.addr,
+			    &psk->psk_dst.addr.v.a.mask,
+			    &dst->addr, state->af) &&
+			    (psk->psk_src.port_op == 0 ||
+			    pf_match_port(psk->psk_src.port_op,
+			    psk->psk_src.port[0], psk->psk_src.port[1],
+			    src->port)) &&
+			    (psk->psk_dst.port_op == 0 ||
+			    pf_match_port(psk->psk_dst.port_op,
+			    psk->psk_dst.port[0], psk->psk_dst.port[1],
+			    dst->port)) &&
+			    (!psk->psk_ifname[0] || !strcmp(psk->psk_ifname,
+			    state->u.s.kif->pfik_name))) {
+#if NPFSYNC > 0
+				/* send immediate delete of state */
+				pfsync_delete_state(state);
+				state->sync_flags |= PFSTATE_NOSYNC;
+#endif
+				pf_unlink_state(state);
+				killed++;
+			}
+		}
+		psk->psk_af = killed;
+		break;
+	}
+
+	case DIOCADDSTATE: {
+		struct pfioc_state	*ps = (struct pfioc_state *)addr;
+		struct pf_state		*state;
+		struct pfi_kif		*kif;
+
+		if (ps->state.timeout >= PFTM_MAX &&
+		    ps->state.timeout != PFTM_UNTIL_PACKET) {
+			error = EINVAL;
+			break;
+		}
+		state = pool_get(&pf_state_pl, PR_NOWAIT);
+		if (state == NULL) {
+			error = ENOMEM;
+			break;
+		}
+		kif = pfi_kif_get(ps->state.u.ifname);
+		if (kif == NULL) {
+			pool_put(&pf_state_pl, state);
+			error = ENOENT;
+			break;
+		}
+		bcopy(&ps->state, state, sizeof(struct pf_state));
+		bzero(&state->u, sizeof(state->u));
+		state->rule.ptr = &pf_default_rule;
+		state->nat_rule.ptr = NULL;
+		state->anchor.ptr = NULL;
+		state->rt_kif = NULL;
+		state->creation = time_second;
+		state->pfsync_time = 0;
+		state->packets[0] = state->packets[1] = 0;
+		state->bytes[0] = state->bytes[1] = 0;
+
+		if (pf_insert_state(kif, state)) {
+			pfi_kif_unref(kif, PFI_KIF_REF_NONE);
+			pool_put(&pf_state_pl, state);
+			error = ENOMEM;
+		}
+		break;
+	}
+
+	case DIOCGETSTATE: {
+		struct pfioc_state	*ps = (struct pfioc_state *)addr;
+		struct pf_state		*state;
+		u_int32_t		 nr;
+		int			 secs;
+
+		nr = 0;
+		RB_FOREACH(state, pf_state_tree_id, &tree_id) {
+			if (nr >= ps->nr)
+				break;
+			nr++;
+		}
+		if (state == NULL) {
+			error = EBUSY;
+			break;
+		}
+		secs = time_second;
+		bcopy(state, &ps->state, sizeof(ps->state));
+		strlcpy(ps->state.u.ifname, state->u.s.kif->pfik_name,
+		    sizeof(ps->state.u.ifname));
+		ps->state.rule.nr = state->rule.ptr->nr;
+		ps->state.nat_rule.nr = (state->nat_rule.ptr == NULL) ?
+		    -1 : state->nat_rule.ptr->nr;
+		ps->state.anchor.nr = (state->anchor.ptr == NULL) ?
+		    -1 : state->anchor.ptr->nr;
+		ps->state.creation = secs - ps->state.creation;
+		ps->state.expire = pf_state_expires(state);
+		if (ps->state.expire > secs)
+			ps->state.expire -= secs;
+		else
+			ps->state.expire = 0;
+		break;
+	}
+
+	case DIOCGETSTATES: {
+		struct pfioc_states	*ps = (struct pfioc_states *)addr;
+		struct pf_state		*state;
+		struct pf_state		*p, *pstore;
+		u_int32_t		 nr = 0;
+		int			 space = ps->ps_len;
+
+		if (space == 0) {
+			nr = pf_status.states;
+			ps->ps_len = sizeof(struct pf_state) * nr;
+			break;
+		}
+
+#ifdef __FreeBSD__
+		PF_UNLOCK();
+#endif
+		pstore = malloc(sizeof(*pstore), M_TEMP, M_WAITOK);
+#ifdef __FreeBSD__
+		PF_LOCK();
+#endif
+
+		p = ps->ps_states;
+
+		state = TAILQ_FIRST(&state_list);
+		while (state) {
+			if (state->timeout != PFTM_UNLINKED) {
+				int	secs = time_second;
+
+				if ((nr+1) * sizeof(*p) > (unsigned)ps->ps_len)
+					break;
+
+				bcopy(state, pstore, sizeof(*pstore));
+				strlcpy(pstore->u.ifname,
+				    state->u.s.kif->pfik_name,
+				    sizeof(pstore->u.ifname));
+				pstore->rule.nr = state->rule.ptr->nr;
+				pstore->nat_rule.nr = (state->nat_rule.ptr ==
+				    NULL) ? -1 : state->nat_rule.ptr->nr;
+				pstore->anchor.nr = (state->anchor.ptr ==
+				    NULL) ? -1 : state->anchor.ptr->nr;
+				pstore->creation = secs - pstore->creation;
+				pstore->expire = pf_state_expires(state);
+				if (pstore->expire > secs)
+					pstore->expire -= secs;
+				else
+					pstore->expire = 0;
+#ifdef __FreeBSD__
+				PF_COPYOUT(pstore, p, sizeof(*p), error);
+#else
+				error = copyout(pstore, p, sizeof(*p));
+#endif
+				if (error) {
+					free(pstore, M_TEMP);
+					goto fail;
+				}
+				p++;
+				nr++;
+			}
+			state = TAILQ_NEXT(state, u.s.entry_list);
+		}
+
+		ps->ps_len = sizeof(struct pf_state) * nr;
+
+		free(pstore, M_TEMP);
+		break;
+	}
+
+	case DIOCGETSTATUS: {
+		struct pf_status *s = (struct pf_status *)addr;
+		bcopy(&pf_status, s, sizeof(struct pf_status));
+		pfi_fill_oldstatus(s);
+		break;
+	}
+
+	case DIOCSETSTATUSIF: {
+		struct pfioc_if	*pi = (struct pfioc_if *)addr;
+
+		if (pi->ifname[0] == 0) {
+			bzero(pf_status.ifname, IFNAMSIZ);
+			break;
+		}
+		if (ifunit(pi->ifname) == NULL) {
+			error = EINVAL;
+			break;
+		}
+		strlcpy(pf_status.ifname, pi->ifname, IFNAMSIZ);
+		break;
+	}
+
+	case DIOCCLRSTATUS: {
+		bzero(pf_status.counters, sizeof(pf_status.counters));
+		bzero(pf_status.fcounters, sizeof(pf_status.fcounters));
+		bzero(pf_status.scounters, sizeof(pf_status.scounters));
+		pf_status.since = time_second;
+		if (*pf_status.ifname)
+			pfi_clr_istats(pf_status.ifname);
+		break;
+	}
+
+	case DIOCNATLOOK: {
+		struct pfioc_natlook	*pnl = (struct pfioc_natlook *)addr;
+		struct pf_state		*state;
+		struct pf_state_cmp	 key;
+		int			 m = 0, direction = pnl->direction;
+
+		key.af = pnl->af;
+		key.proto = pnl->proto;
+
+		if (!pnl->proto ||
+		    PF_AZERO(&pnl->saddr, pnl->af) ||
+		    PF_AZERO(&pnl->daddr, pnl->af) ||
+		    ((pnl->proto == IPPROTO_TCP ||
+		    pnl->proto == IPPROTO_UDP) &&
+		    (!pnl->dport || !pnl->sport)))
+			error = EINVAL;
+		else {
+			/*
+			 * userland gives us source and dest of connection,
+			 * reverse the lookup so we ask for what happens with
+			 * the return traffic, enabling us to find it in the
+			 * state tree.
+			 */
+			if (direction == PF_IN) {
+				PF_ACPY(&key.ext.addr, &pnl->daddr, pnl->af);
+				key.ext.port = pnl->dport;
+				PF_ACPY(&key.gwy.addr, &pnl->saddr, pnl->af);
+				key.gwy.port = pnl->sport;
+				state = pf_find_state_all(&key, PF_EXT_GWY, &m);
+			} else {
+				PF_ACPY(&key.lan.addr, &pnl->daddr, pnl->af);
+				key.lan.port = pnl->dport;
+				PF_ACPY(&key.ext.addr, &pnl->saddr, pnl->af);
+				key.ext.port = pnl->sport;
+				state = pf_find_state_all(&key, PF_LAN_EXT, &m);
+			}
+			if (m > 1)
+				error = E2BIG;	/* more than one state */
+			else if (state != NULL) {
+				if (direction == PF_IN) {
+					PF_ACPY(&pnl->rsaddr, &state->lan.addr,
+					    state->af);
+					pnl->rsport = state->lan.port;
+					PF_ACPY(&pnl->rdaddr, &pnl->daddr,
+					    pnl->af);
+					pnl->rdport = pnl->dport;
+				} else {
+					PF_ACPY(&pnl->rdaddr, &state->gwy.addr,
+					    state->af);
+					pnl->rdport = state->gwy.port;
+					PF_ACPY(&pnl->rsaddr, &pnl->saddr,
+					    pnl->af);
+					pnl->rsport = pnl->sport;
+				}
+			} else
+				error = ENOENT;
+		}
+		break;
+	}
+
+	case DIOCSETTIMEOUT: {
+		struct pfioc_tm	*pt = (struct pfioc_tm *)addr;
+		int		 old;
+
+		if (pt->timeout < 0 || pt->timeout >= PFTM_MAX ||
+		    pt->seconds < 0) {
+			error = EINVAL;
+			goto fail;
+		}
+		old = pf_default_rule.timeout[pt->timeout];
+		if (pt->timeout == PFTM_INTERVAL && pt->seconds == 0)
+			pt->seconds = 1;
+		pf_default_rule.timeout[pt->timeout] = pt->seconds;
+		if (pt->timeout == PFTM_INTERVAL && pt->seconds < old)
+			wakeup(pf_purge_thread);
+		pt->seconds = old;
+		break;
+	}
+
+	case DIOCGETTIMEOUT: {
+		struct pfioc_tm	*pt = (struct pfioc_tm *)addr;
+
+		if (pt->timeout < 0 || pt->timeout >= PFTM_MAX) {
+			error = EINVAL;
+			goto fail;
+		}
+		pt->seconds = pf_default_rule.timeout[pt->timeout];
+		break;
+	}
+
+	case DIOCGETLIMIT: {
+		struct pfioc_limit	*pl = (struct pfioc_limit *)addr;
+
+		if (pl->index < 0 || pl->index >= PF_LIMIT_MAX) {
+			error = EINVAL;
+			goto fail;
+		}
+		pl->limit = pf_pool_limits[pl->index].limit;
+		break;
+	}
+
+	case DIOCSETLIMIT: {
+		struct pfioc_limit	*pl = (struct pfioc_limit *)addr;
+		int			 old_limit;
+
+		if (pl->index < 0 || pl->index >= PF_LIMIT_MAX ||
+		    pf_pool_limits[pl->index].pp == NULL) {
+			error = EINVAL;
+			goto fail;
+		}
+#ifdef __FreeBSD__
+		uma_zone_set_max(pf_pool_limits[pl->index].pp, pl->limit);
+#else
+		if (pool_sethardlimit(pf_pool_limits[pl->index].pp,
+		    pl->limit, NULL, 0) != 0) {
+			error = EBUSY;
+			goto fail;
+		}
+#endif
+		old_limit = pf_pool_limits[pl->index].limit;
+		pf_pool_limits[pl->index].limit = pl->limit;
+		pl->limit = old_limit;
+		break;
+	}
+
+	case DIOCSETDEBUG: {
+		u_int32_t	*level = (u_int32_t *)addr;
+
+		pf_status.debug = *level;
+		break;
+	}
+
+	case DIOCCLRRULECTRS: {
+		/* obsoleted by DIOCGETRULE with action=PF_GET_CLR_CNTR */
+		struct pf_ruleset	*ruleset = &pf_main_ruleset;
+		struct pf_rule		*rule;
+
+		TAILQ_FOREACH(rule,
+		    ruleset->rules[PF_RULESET_FILTER].active.ptr, entries) {
+			rule->evaluations = 0;
+			rule->packets[0] = rule->packets[1] = 0;
+			rule->bytes[0] = rule->bytes[1] = 0;
+		}
+		break;
+	}
+
+#ifdef __FreeBSD__
+	case DIOCGIFSPEED: {
+		struct pf_ifspeed	*psp = (struct pf_ifspeed *)addr;
+		struct pf_ifspeed	ps;
+		struct ifnet		*ifp;
+
+		if (psp->ifname[0] != 0) {
+			/* Can we completely trust user-land? */
+			strlcpy(ps.ifname, psp->ifname, IFNAMSIZ);
+			ifp = ifunit(ps.ifname);
+			if (ifp != NULL)
+				psp->baudrate = ifp->if_baudrate;
+			else
+				error = EINVAL;
+		} else
+			error = EINVAL;
+		break;
+	}
+#endif /* __FreeBSD__ */
+
+#ifdef ALTQ
+	case DIOCSTARTALTQ: {
+		struct pf_altq		*altq;
+
+		/* enable all altq interfaces on active list */
+		TAILQ_FOREACH(altq, pf_altqs_active, entries) {
+#ifdef __FreeBSD__
+			if (altq->qname[0] == 0 && (altq->local_flags &
+			    PFALTQ_FLAG_IF_REMOVED) == 0) {
+#else
+			if (altq->qname[0] == 0) {
+#endif
+				error = pf_enable_altq(altq);
+				if (error != 0)
+					break;
+			}
+		}
+		if (error == 0)
+			pf_altq_running = 1;
+		DPFPRINTF(PF_DEBUG_MISC, ("altq: started\n"));
+		break;
+	}
+
+	case DIOCSTOPALTQ: {
+		struct pf_altq		*altq;
+
+		/* disable all altq interfaces on active list */
+		TAILQ_FOREACH(altq, pf_altqs_active, entries) {
+#ifdef __FreeBSD__
+			if (altq->qname[0] == 0 && (altq->local_flags &
+			    PFALTQ_FLAG_IF_REMOVED) == 0) {
+#else
+			if (altq->qname[0] == 0) {
+#endif
+				error = pf_disable_altq(altq);
+				if (error != 0)
+					break;
+			}
+		}
+		if (error == 0)
+			pf_altq_running = 0;
+		DPFPRINTF(PF_DEBUG_MISC, ("altq: stopped\n"));
+		break;
+	}
+
+	case DIOCADDALTQ: {
+		struct pfioc_altq	*pa = (struct pfioc_altq *)addr;
+		struct pf_altq		*altq, *a;
+
+		if (pa->ticket != ticket_altqs_inactive) {
+			error = EBUSY;
+			break;
+		}
+		altq = pool_get(&pf_altq_pl, PR_NOWAIT);
+		if (altq == NULL) {
+			error = ENOMEM;
+			break;
+		}
+		bcopy(&pa->altq, altq, sizeof(struct pf_altq));
+#ifdef __FreeBSD__
+		altq->local_flags = 0;
+#endif
+
+		/*
+		 * if this is for a queue, find the discipline and
+		 * copy the necessary fields
+		 */
+		if (altq->qname[0] != 0) {
+			if ((altq->qid = pf_qname2qid(altq->qname)) == 0) {
+				error = EBUSY;
+				pool_put(&pf_altq_pl, altq);
+				break;
+			}
+			altq->altq_disc = NULL;
+			TAILQ_FOREACH(a, pf_altqs_inactive, entries) {
+				if (strncmp(a->ifname, altq->ifname,
+				    IFNAMSIZ) == 0 && a->qname[0] == 0) {
+					altq->altq_disc = a->altq_disc;
+					break;
+				}
+			}
+		}
+
+#ifdef __FreeBSD__
+		struct ifnet *ifp;
+
+		if ((ifp = ifunit(altq->ifname)) == NULL) {
+			altq->local_flags |= PFALTQ_FLAG_IF_REMOVED;
+		} else {
+			PF_UNLOCK();
+#endif		
+		error = altq_add(altq);
+#ifdef __FreeBSD__
+			PF_LOCK();
+		}
+#endif
+		if (error) {
+			pool_put(&pf_altq_pl, altq);
+			break;
+		}
+
+		TAILQ_INSERT_TAIL(pf_altqs_inactive, altq, entries);
+		bcopy(altq, &pa->altq, sizeof(struct pf_altq));
+		break;
+	}
+
+	case DIOCGETALTQS: {
+		struct pfioc_altq	*pa = (struct pfioc_altq *)addr;
+		struct pf_altq		*altq;
+
+		pa->nr = 0;
+		TAILQ_FOREACH(altq, pf_altqs_active, entries)
+			pa->nr++;
+		pa->ticket = ticket_altqs_active;
+		break;
+	}
+
+	case DIOCGETALTQ: {
+		struct pfioc_altq	*pa = (struct pfioc_altq *)addr;
+		struct pf_altq		*altq;
+		u_int32_t		 nr;
+
+		if (pa->ticket != ticket_altqs_active) {
+			error = EBUSY;
+			break;
+		}
+		nr = 0;
+		altq = TAILQ_FIRST(pf_altqs_active);
+		while ((altq != NULL) && (nr < pa->nr)) {
+			altq = TAILQ_NEXT(altq, entries);
+			nr++;
+		}
+		if (altq == NULL) {
+			error = EBUSY;
+			break;
+		}
+		bcopy(altq, &pa->altq, sizeof(struct pf_altq));
+		break;
+	}
+
+	case DIOCCHANGEALTQ:
+		/* CHANGEALTQ not supported yet! */
+		error = ENODEV;
+		break;
+
+	case DIOCGETQSTATS: {
+		struct pfioc_qstats	*pq = (struct pfioc_qstats *)addr;
+		struct pf_altq		*altq;
+		u_int32_t		 nr;
+		int			 nbytes;
+
+		if (pq->ticket != ticket_altqs_active) {
+			error = EBUSY;
+			break;
+		}
+		nbytes = pq->nbytes;
+		nr = 0;
+		altq = TAILQ_FIRST(pf_altqs_active);
+		while ((altq != NULL) && (nr < pq->nr)) {
+			altq = TAILQ_NEXT(altq, entries);
+			nr++;
+		}
+		if (altq == NULL) {
+			error = EBUSY;
+			break;
+		}
+#ifdef __FreeBSD__
+		if ((altq->local_flags & PFALTQ_FLAG_IF_REMOVED) != 0) {
+			error = ENXIO;
+			break;
+		}
+		PF_UNLOCK();
+#endif
+		error = altq_getqstats(altq, pq->buf, &nbytes);
+#ifdef __FreeBSD__
+		PF_LOCK();
+#endif
+		if (error == 0) {
+			pq->scheduler = altq->scheduler;
+			pq->nbytes = nbytes;
+		}
+		break;
+	}
+#endif /* ALTQ */
+
+	case DIOCBEGINADDRS: {
+		struct pfioc_pooladdr	*pp = (struct pfioc_pooladdr *)addr;
+
+		pf_empty_pool(&pf_pabuf);
+		pp->ticket = ++ticket_pabuf;
+		break;
+	}
+
+	case DIOCADDADDR: {
+		struct pfioc_pooladdr	*pp = (struct pfioc_pooladdr *)addr;
+
+		if (pp->ticket != ticket_pabuf) {
+			error = EBUSY;
+			break;
+		}
+#ifndef INET
+		if (pp->af == AF_INET) {
+			error = EAFNOSUPPORT;
+			break;
+		}
+#endif /* INET */
+#ifndef INET6
+		if (pp->af == AF_INET6) {
+			error = EAFNOSUPPORT;
+			break;
+		}
+#endif /* INET6 */
+		if (pp->addr.addr.type != PF_ADDR_ADDRMASK &&
+		    pp->addr.addr.type != PF_ADDR_DYNIFTL &&
+		    pp->addr.addr.type != PF_ADDR_TABLE) {
+			error = EINVAL;
+			break;
+		}
+		pa = pool_get(&pf_pooladdr_pl, PR_NOWAIT);
+		if (pa == NULL) {
+			error = ENOMEM;
+			break;
+		}
+		bcopy(&pp->addr, pa, sizeof(struct pf_pooladdr));
+		if (pa->ifname[0]) {
+			pa->kif = pfi_kif_get(pa->ifname);
+			if (pa->kif == NULL) {
+				pool_put(&pf_pooladdr_pl, pa);
+				error = EINVAL;
+				break;
+			}
+			pfi_kif_ref(pa->kif, PFI_KIF_REF_RULE);
+		}
+		if (pfi_dynaddr_setup(&pa->addr, pp->af)) {
+			pfi_dynaddr_remove(&pa->addr);
+			pfi_kif_unref(pa->kif, PFI_KIF_REF_RULE);
+			pool_put(&pf_pooladdr_pl, pa);
+			error = EINVAL;
+			break;
+		}
+		TAILQ_INSERT_TAIL(&pf_pabuf, pa, entries);
+		break;
+	}
+
+	case DIOCGETADDRS: {
+		struct pfioc_pooladdr	*pp = (struct pfioc_pooladdr *)addr;
+
+		pp->nr = 0;
+		pool = pf_get_pool(pp->anchor, pp->ticket, pp->r_action,
+		    pp->r_num, 0, 1, 0);
+		if (pool == NULL) {
+			error = EBUSY;
+			break;
+		}
+		TAILQ_FOREACH(pa, &pool->list, entries)
+			pp->nr++;
+		break;
+	}
+
+	case DIOCGETADDR: {
+		struct pfioc_pooladdr	*pp = (struct pfioc_pooladdr *)addr;
+		u_int32_t		 nr = 0;
+
+		pool = pf_get_pool(pp->anchor, pp->ticket, pp->r_action,
+		    pp->r_num, 0, 1, 1);
+		if (pool == NULL) {
+			error = EBUSY;
+			break;
+		}
+		pa = TAILQ_FIRST(&pool->list);
+		while ((pa != NULL) && (nr < pp->nr)) {
+			pa = TAILQ_NEXT(pa, entries);
+			nr++;
+		}
+		if (pa == NULL) {
+			error = EBUSY;
+			break;
+		}
+		bcopy(pa, &pp->addr, sizeof(struct pf_pooladdr));
+		pfi_dynaddr_copyout(&pp->addr.addr);
+		pf_tbladdr_copyout(&pp->addr.addr);
+		pf_rtlabel_copyout(&pp->addr.addr);
+		break;
+	}
+
+	case DIOCCHANGEADDR: {
+		struct pfioc_pooladdr	*pca = (struct pfioc_pooladdr *)addr;
+		struct pf_pooladdr	*oldpa = NULL, *newpa = NULL;
+		struct pf_ruleset	*ruleset;
+
+		if (pca->action < PF_CHANGE_ADD_HEAD ||
+		    pca->action > PF_CHANGE_REMOVE) {
+			error = EINVAL;
+			break;
+		}
+		if (pca->addr.addr.type != PF_ADDR_ADDRMASK &&
+		    pca->addr.addr.type != PF_ADDR_DYNIFTL &&
+		    pca->addr.addr.type != PF_ADDR_TABLE) {
+			error = EINVAL;
+			break;
+		}
+
+		ruleset = pf_find_ruleset(pca->anchor);
+		if (ruleset == NULL) {
+			error = EBUSY;
+			break;
+		}
+		pool = pf_get_pool(pca->anchor, pca->ticket, pca->r_action,
+		    pca->r_num, pca->r_last, 1, 1);
+		if (pool == NULL) {
+			error = EBUSY;
+			break;
+		}
+		if (pca->action != PF_CHANGE_REMOVE) {
+			newpa = pool_get(&pf_pooladdr_pl, PR_NOWAIT);
+			if (newpa == NULL) {
+				error = ENOMEM;
+				break;
+			}
+			bcopy(&pca->addr, newpa, sizeof(struct pf_pooladdr));
+#ifndef INET
+			if (pca->af == AF_INET) {
+				pool_put(&pf_pooladdr_pl, newpa);
+				error = EAFNOSUPPORT;
+				break;
+			}
+#endif /* INET */
+#ifndef INET6
+			if (pca->af == AF_INET6) {
+				pool_put(&pf_pooladdr_pl, newpa);
+				error = EAFNOSUPPORT;
+				break;
+			}
+#endif /* INET6 */
+			if (newpa->ifname[0]) {
+				newpa->kif = pfi_kif_get(newpa->ifname);
+				if (newpa->kif == NULL) {
+					pool_put(&pf_pooladdr_pl, newpa);
+					error = EINVAL;
+					break;
+				}
+				pfi_kif_ref(newpa->kif, PFI_KIF_REF_RULE);
+			} else
+				newpa->kif = NULL;
+			if (pfi_dynaddr_setup(&newpa->addr, pca->af) ||
+			    pf_tbladdr_setup(ruleset, &newpa->addr)) {
+				pfi_dynaddr_remove(&newpa->addr);
+				pfi_kif_unref(newpa->kif, PFI_KIF_REF_RULE);
+				pool_put(&pf_pooladdr_pl, newpa);
+				error = EINVAL;
+				break;
+			}
+		}
+
+		if (pca->action == PF_CHANGE_ADD_HEAD)
+			oldpa = TAILQ_FIRST(&pool->list);
+		else if (pca->action == PF_CHANGE_ADD_TAIL)
+			oldpa = TAILQ_LAST(&pool->list, pf_palist);
+		else {
+			int	i = 0;
+
+			oldpa = TAILQ_FIRST(&pool->list);
+			while ((oldpa != NULL) && (i < pca->nr)) {
+				oldpa = TAILQ_NEXT(oldpa, entries);
+				i++;
+			}
+			if (oldpa == NULL) {
+				error = EINVAL;
+				break;
+			}
+		}
+
+		if (pca->action == PF_CHANGE_REMOVE) {
+			TAILQ_REMOVE(&pool->list, oldpa, entries);
+			pfi_dynaddr_remove(&oldpa->addr);
+			pf_tbladdr_remove(&oldpa->addr);
+			pfi_kif_unref(oldpa->kif, PFI_KIF_REF_RULE);
+			pool_put(&pf_pooladdr_pl, oldpa);
+		} else {
+			if (oldpa == NULL)
+				TAILQ_INSERT_TAIL(&pool->list, newpa, entries);
+			else if (pca->action == PF_CHANGE_ADD_HEAD ||
+			    pca->action == PF_CHANGE_ADD_BEFORE)
+				TAILQ_INSERT_BEFORE(oldpa, newpa, entries);
+			else
+				TAILQ_INSERT_AFTER(&pool->list, oldpa,
+				    newpa, entries);
+		}
+
+		pool->cur = TAILQ_FIRST(&pool->list);
+		PF_ACPY(&pool->counter, &pool->cur->addr.v.a.addr,
+		    pca->af);
+		break;
+	}
+
+	case DIOCGETRULESETS: {
+		struct pfioc_ruleset	*pr = (struct pfioc_ruleset *)addr;
+		struct pf_ruleset	*ruleset;
+		struct pf_anchor	*anchor;
+
+		pr->path[sizeof(pr->path) - 1] = 0;
+		if ((ruleset = pf_find_ruleset(pr->path)) == NULL) {
+			error = EINVAL;
+			break;
+		}
+		pr->nr = 0;
+		if (ruleset->anchor == NULL) {
+			/* XXX kludge for pf_main_ruleset */
+			RB_FOREACH(anchor, pf_anchor_global, &pf_anchors)
+				if (anchor->parent == NULL)
+					pr->nr++;
+		} else {
+			RB_FOREACH(anchor, pf_anchor_node,
+			    &ruleset->anchor->children)
+				pr->nr++;
+		}
+		break;
+	}
+
+	case DIOCGETRULESET: {
+		struct pfioc_ruleset	*pr = (struct pfioc_ruleset *)addr;
+		struct pf_ruleset	*ruleset;
+		struct pf_anchor	*anchor;
+		u_int32_t		 nr = 0;
+
+		pr->path[sizeof(pr->path) - 1] = 0;
+		if ((ruleset = pf_find_ruleset(pr->path)) == NULL) {
+			error = EINVAL;
+			break;
+		}
+		pr->name[0] = 0;
+		if (ruleset->anchor == NULL) {
+			/* XXX kludge for pf_main_ruleset */
+			RB_FOREACH(anchor, pf_anchor_global, &pf_anchors)
+				if (anchor->parent == NULL && nr++ == pr->nr) {
+					strlcpy(pr->name, anchor->name,
+					    sizeof(pr->name));
+					break;
+				}
+		} else {
+			RB_FOREACH(anchor, pf_anchor_node,
+			    &ruleset->anchor->children)
+				if (nr++ == pr->nr) {
+					strlcpy(pr->name, anchor->name,
+					    sizeof(pr->name));
+					break;
+				}
+		}
+		if (!pr->name[0])
+			error = EBUSY;
+		break;
+	}
+
+	case DIOCRCLRTABLES: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != 0) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_clr_tables(&io->pfrio_table, &io->pfrio_ndel,
+		    io->pfrio_flags | PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRADDTABLES: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_table)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_add_tables(io->pfrio_buffer, io->pfrio_size,
+		    &io->pfrio_nadd, io->pfrio_flags | PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRDELTABLES: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_table)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_del_tables(io->pfrio_buffer, io->pfrio_size,
+		    &io->pfrio_ndel, io->pfrio_flags | PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRGETTABLES: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_table)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_get_tables(&io->pfrio_table, io->pfrio_buffer,
+		    &io->pfrio_size, io->pfrio_flags | PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRGETTSTATS: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_tstats)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_get_tstats(&io->pfrio_table, io->pfrio_buffer,
+		    &io->pfrio_size, io->pfrio_flags | PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRCLRTSTATS: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_table)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_clr_tstats(io->pfrio_buffer, io->pfrio_size,
+		    &io->pfrio_nzero, io->pfrio_flags | PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRSETTFLAGS: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_table)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_set_tflags(io->pfrio_buffer, io->pfrio_size,
+		    io->pfrio_setflag, io->pfrio_clrflag, &io->pfrio_nchange,
+		    &io->pfrio_ndel, io->pfrio_flags | PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRCLRADDRS: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != 0) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_clr_addrs(&io->pfrio_table, &io->pfrio_ndel,
+		    io->pfrio_flags | PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRADDADDRS: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_addr)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_add_addrs(&io->pfrio_table, io->pfrio_buffer,
+		    io->pfrio_size, &io->pfrio_nadd, io->pfrio_flags |
+		    PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRDELADDRS: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_addr)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_del_addrs(&io->pfrio_table, io->pfrio_buffer,
+		    io->pfrio_size, &io->pfrio_ndel, io->pfrio_flags |
+		    PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRSETADDRS: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_addr)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_set_addrs(&io->pfrio_table, io->pfrio_buffer,
+		    io->pfrio_size, &io->pfrio_size2, &io->pfrio_nadd,
+		    &io->pfrio_ndel, &io->pfrio_nchange, io->pfrio_flags |
+		    PFR_FLAG_USERIOCTL, 0);
+		break;
+	}
+
+	case DIOCRGETADDRS: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_addr)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_get_addrs(&io->pfrio_table, io->pfrio_buffer,
+		    &io->pfrio_size, io->pfrio_flags | PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRGETASTATS: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_astats)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_get_astats(&io->pfrio_table, io->pfrio_buffer,
+		    &io->pfrio_size, io->pfrio_flags | PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRCLRASTATS: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_addr)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_clr_astats(&io->pfrio_table, io->pfrio_buffer,
+		    io->pfrio_size, &io->pfrio_nzero, io->pfrio_flags |
+		    PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRTSTADDRS: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_addr)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_tst_addrs(&io->pfrio_table, io->pfrio_buffer,
+		    io->pfrio_size, &io->pfrio_nmatch, io->pfrio_flags |
+		    PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCRINADEFINE: {
+		struct pfioc_table *io = (struct pfioc_table *)addr;
+
+		if (io->pfrio_esize != sizeof(struct pfr_addr)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfr_ina_define(&io->pfrio_table, io->pfrio_buffer,
+		    io->pfrio_size, &io->pfrio_nadd, &io->pfrio_naddr,
+		    io->pfrio_ticket, io->pfrio_flags | PFR_FLAG_USERIOCTL);
+		break;
+	}
+
+	case DIOCOSFPADD: {
+		struct pf_osfp_ioctl *io = (struct pf_osfp_ioctl *)addr;
+		error = pf_osfp_add(io);
+		break;
+	}
+
+	case DIOCOSFPGET: {
+		struct pf_osfp_ioctl *io = (struct pf_osfp_ioctl *)addr;
+		error = pf_osfp_get(io);
+		break;
+	}
+
+	case DIOCXBEGIN: {
+		struct pfioc_trans	*io = (struct pfioc_trans *)addr;
+		struct pfioc_trans_e	*ioe;
+		struct pfr_table	*table;
+		int			 i;
+
+		if (io->esize != sizeof(*ioe)) {
+			error = ENODEV;
+			goto fail;
+		}
+#ifdef __FreeBSD__
+		PF_UNLOCK();
+#endif
+		ioe = (struct pfioc_trans_e *)malloc(sizeof(*ioe),
+		    M_TEMP, M_WAITOK);
+		table = (struct pfr_table *)malloc(sizeof(*table),
+		    M_TEMP, M_WAITOK);
+#ifdef __FreeBSD__
+		PF_LOCK();
+#endif
+		for (i = 0; i < io->size; i++) {
+#ifdef __FreeBSD__
+			PF_COPYIN(io->array+i, ioe, sizeof(*ioe), error);
+			if (error) {
+#else
+			if (copyin(io->array+i, ioe, sizeof(*ioe))) {
+#endif
+				free(table, M_TEMP);
+				free(ioe, M_TEMP);
+				error = EFAULT;
+				goto fail;
+			}
+			switch (ioe->rs_num) {
+#ifdef ALTQ
+			case PF_RULESET_ALTQ:
+				if (ioe->anchor[0]) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					error = EINVAL;
+					goto fail;
+				}
+				if ((error = pf_begin_altq(&ioe->ticket))) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					goto fail;
+				}
+				break;
+#endif /* ALTQ */
+			case PF_RULESET_TABLE:
+				bzero(table, sizeof(*table));
+				strlcpy(table->pfrt_anchor, ioe->anchor,
+				    sizeof(table->pfrt_anchor));
+				if ((error = pfr_ina_begin(table,
+				    &ioe->ticket, NULL, 0))) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					goto fail;
+				}
+				break;
+			default:
+				if ((error = pf_begin_rules(&ioe->ticket,
+				    ioe->rs_num, ioe->anchor))) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					goto fail;
+				}
+				break;
+			}
+#ifdef __FreeBSD__
+			PF_COPYOUT(ioe, io->array+i, sizeof(io->array[i]),
+			    error);
+			if (error) {
+#else
+			if (copyout(ioe, io->array+i, sizeof(io->array[i]))) {
+#endif
+				free(table, M_TEMP);
+				free(ioe, M_TEMP);
+				error = EFAULT;
+				goto fail;
+			}
+		}
+		free(table, M_TEMP);
+		free(ioe, M_TEMP);
+		break;
+	}
+
+	case DIOCXROLLBACK: {
+		struct pfioc_trans	*io = (struct pfioc_trans *)addr;
+		struct pfioc_trans_e	*ioe;
+		struct pfr_table	*table;
+		int			 i;
+
+		if (io->esize != sizeof(*ioe)) {
+			error = ENODEV;
+			goto fail;
+		}
+#ifdef __FreeBSD__
+		PF_UNLOCK();
+#endif
+		ioe = (struct pfioc_trans_e *)malloc(sizeof(*ioe),
+		    M_TEMP, M_WAITOK);
+		table = (struct pfr_table *)malloc(sizeof(*table),
+		    M_TEMP, M_WAITOK);
+#ifdef __FreeBSD__
+		PF_LOCK();
+#endif
+		for (i = 0; i < io->size; i++) {
+#ifdef __FreeBSD__
+			PF_COPYIN(io->array+i, ioe, sizeof(*ioe), error);
+			if (error) {
+#else
+			if (copyin(io->array+i, ioe, sizeof(*ioe))) {
+#endif
+				free(table, M_TEMP);
+				free(ioe, M_TEMP);
+				error = EFAULT;
+				goto fail;
+			}
+			switch (ioe->rs_num) {
+#ifdef ALTQ
+			case PF_RULESET_ALTQ:
+				if (ioe->anchor[0]) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					error = EINVAL;
+					goto fail;
+				}
+				if ((error = pf_rollback_altq(ioe->ticket))) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					goto fail; /* really bad */
+				}
+				break;
+#endif /* ALTQ */
+			case PF_RULESET_TABLE:
+				bzero(table, sizeof(*table));
+				strlcpy(table->pfrt_anchor, ioe->anchor,
+				    sizeof(table->pfrt_anchor));
+				if ((error = pfr_ina_rollback(table,
+				    ioe->ticket, NULL, 0))) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					goto fail; /* really bad */
+				}
+				break;
+			default:
+				if ((error = pf_rollback_rules(ioe->ticket,
+				    ioe->rs_num, ioe->anchor))) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					goto fail; /* really bad */
+				}
+				break;
+			}
+		}
+		free(table, M_TEMP);
+		free(ioe, M_TEMP);
+		break;
+	}
+
+	case DIOCXCOMMIT: {
+		struct pfioc_trans	*io = (struct pfioc_trans *)addr;
+		struct pfioc_trans_e	*ioe;
+		struct pfr_table	*table;
+		struct pf_ruleset	*rs;
+		int			 i;
+
+		if (io->esize != sizeof(*ioe)) {
+			error = ENODEV;
+			goto fail;
+		}
+#ifdef __FreeBSD__
+		PF_UNLOCK();
+#endif
+		ioe = (struct pfioc_trans_e *)malloc(sizeof(*ioe),
+		    M_TEMP, M_WAITOK);
+		table = (struct pfr_table *)malloc(sizeof(*table),
+		    M_TEMP, M_WAITOK);
+#ifdef __FreeBSD__
+		PF_LOCK();
+#endif
+		/* first makes sure everything will succeed */
+		for (i = 0; i < io->size; i++) {
+#ifdef __FreeBSD__
+			PF_COPYIN(io->array+i, ioe, sizeof(*ioe), error);
+			if (error) {
+#else
+			if (copyin(io->array+i, ioe, sizeof(*ioe))) {
+#endif
+				free(table, M_TEMP);
+				free(ioe, M_TEMP);
+				error = EFAULT;
+				goto fail;
+			}
+			switch (ioe->rs_num) {
+#ifdef ALTQ
+			case PF_RULESET_ALTQ:
+				if (ioe->anchor[0]) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					error = EINVAL;
+					goto fail;
+				}
+				if (!altqs_inactive_open || ioe->ticket !=
+				    ticket_altqs_inactive) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					error = EBUSY;
+					goto fail;
+				}
+				break;
+#endif /* ALTQ */
+			case PF_RULESET_TABLE:
+				rs = pf_find_ruleset(ioe->anchor);
+				if (rs == NULL || !rs->topen || ioe->ticket !=
+				     rs->tticket) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					error = EBUSY;
+					goto fail;
+				}
+				break;
+			default:
+				if (ioe->rs_num < 0 || ioe->rs_num >=
+				    PF_RULESET_MAX) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					error = EINVAL;
+					goto fail;
+				}
+				rs = pf_find_ruleset(ioe->anchor);
+				if (rs == NULL ||
+				    !rs->rules[ioe->rs_num].inactive.open ||
+				    rs->rules[ioe->rs_num].inactive.ticket !=
+				    ioe->ticket) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					error = EBUSY;
+					goto fail;
+				}
+				break;
+			}
+		}
+		/* now do the commit - no errors should happen here */
+		for (i = 0; i < io->size; i++) {
+#ifdef __FreeBSD__
+			PF_COPYIN(io->array+i, ioe, sizeof(*ioe), error);
+			if (error) {
+#else
+			if (copyin(io->array+i, ioe, sizeof(*ioe))) {
+#endif
+				free(table, M_TEMP);
+				free(ioe, M_TEMP);
+				error = EFAULT;
+				goto fail;
+			}
+			switch (ioe->rs_num) {
+#ifdef ALTQ
+			case PF_RULESET_ALTQ:
+				if ((error = pf_commit_altq(ioe->ticket))) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					goto fail; /* really bad */
+				}
+				break;
+#endif /* ALTQ */
+			case PF_RULESET_TABLE:
+				bzero(table, sizeof(*table));
+				strlcpy(table->pfrt_anchor, ioe->anchor,
+				    sizeof(table->pfrt_anchor));
+				if ((error = pfr_ina_commit(table, ioe->ticket,
+				    NULL, NULL, 0))) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					goto fail; /* really bad */
+				}
+				break;
+			default:
+				if ((error = pf_commit_rules(ioe->ticket,
+				    ioe->rs_num, ioe->anchor))) {
+					free(table, M_TEMP);
+					free(ioe, M_TEMP);
+					goto fail; /* really bad */
+				}
+				break;
+			}
+		}
+		free(table, M_TEMP);
+		free(ioe, M_TEMP);
+		break;
+	}
+
+	case DIOCGETSRCNODES: {
+		struct pfioc_src_nodes	*psn = (struct pfioc_src_nodes *)addr;
+		struct pf_src_node	*n, *p, *pstore;
+		u_int32_t		 nr = 0;
+		int			 space = psn->psn_len;
+
+		if (space == 0) {
+			RB_FOREACH(n, pf_src_tree, &tree_src_tracking)
+				nr++;
+			psn->psn_len = sizeof(struct pf_src_node) * nr;
+			break;
+		}
+
+#ifdef __FreeBSD__
+		PF_UNLOCK();
+#endif
+		pstore = malloc(sizeof(*pstore), M_TEMP, M_WAITOK);
+#ifdef __FreeBSD__
+		PF_LOCK();
+#endif
+
+		p = psn->psn_src_nodes;
+		RB_FOREACH(n, pf_src_tree, &tree_src_tracking) {
+			int	secs = time_second, diff;
+
+			if ((nr + 1) * sizeof(*p) > (unsigned)psn->psn_len)
+				break;
+
+			bcopy(n, pstore, sizeof(*pstore));
+			if (n->rule.ptr != NULL)
+				pstore->rule.nr = n->rule.ptr->nr;
+			pstore->creation = secs - pstore->creation;
+			if (pstore->expire > secs)
+				pstore->expire -= secs;
+			else
+				pstore->expire = 0;
+
+			/* adjust the connection rate estimate */
+			diff = secs - n->conn_rate.last;
+			if (diff >= n->conn_rate.seconds)
+				pstore->conn_rate.count = 0;
+			else
+				pstore->conn_rate.count -=
+				    n->conn_rate.count * diff /
+				    n->conn_rate.seconds;
+
+#ifdef __FreeBSD__
+			PF_COPYOUT(pstore, p, sizeof(*p), error);
+#else
+			error = copyout(pstore, p, sizeof(*p));
+#endif
+			if (error) {
+				free(pstore, M_TEMP);
+				goto fail;
+			}
+			p++;
+			nr++;
+		}
+		psn->psn_len = sizeof(struct pf_src_node) * nr;
+
+		free(pstore, M_TEMP);
+		break;
+	}
+
+	case DIOCCLRSRCNODES: {
+		struct pf_src_node	*n;
+		struct pf_state		*state;
+
+		RB_FOREACH(state, pf_state_tree_id, &tree_id) {
+			state->src_node = NULL;
+			state->nat_src_node = NULL;
+		}
+		RB_FOREACH(n, pf_src_tree, &tree_src_tracking) {
+			n->expire = 1;
+			n->states = 0;
+		}
+		pf_purge_expired_src_nodes(1);
+		pf_status.src_nodes = 0;
+		break;
+	}
+
+	case DIOCKILLSRCNODES: {
+		struct pf_src_node	*sn;
+		struct pf_state		*s;
+		struct pfioc_src_node_kill *psnk = \
+			(struct pfioc_src_node_kill *) addr;
+		int			killed = 0;
+
+		RB_FOREACH(sn, pf_src_tree, &tree_src_tracking) {
+        		if (PF_MATCHA(psnk->psnk_src.neg, \
+				      &psnk->psnk_src.addr.v.a.addr, \
+				      &psnk->psnk_src.addr.v.a.mask, \
+				      &sn->addr, sn->af) &&
+			    PF_MATCHA(psnk->psnk_dst.neg, \
+				      &psnk->psnk_dst.addr.v.a.addr, \
+				      &psnk->psnk_dst.addr.v.a.mask, \
+				      &sn->raddr, sn->af)) {
+				/* Handle state to src_node linkage */
+				if (sn->states != 0) {
+					RB_FOREACH(s, pf_state_tree_id, 
+					    &tree_id) {
+						if (s->src_node == sn)
+							s->src_node = NULL;
+						if (s->nat_src_node == sn)
+							s->nat_src_node = NULL;
+					}
+					sn->states = 0;
+				}
+				sn->expire = 1;
+				killed++;
+			}
+		}
+
+		if (killed > 0)
+			pf_purge_expired_src_nodes(1);
+
+		psnk->psnk_af = killed;
+		break;
+	}
+
+	case DIOCSETHOSTID: {
+		u_int32_t	*hostid = (u_int32_t *)addr;
+
+		if (*hostid == 0)
+			pf_status.hostid = arc4random();
+		else
+			pf_status.hostid = *hostid;
+		break;
+	}
+
+	case DIOCOSFPFLUSH:
+		pf_osfp_flush();
+		break;
+
+	case DIOCIGETIFACES: {
+		struct pfioc_iface *io = (struct pfioc_iface *)addr;
+
+		if (io->pfiio_esize != sizeof(struct pfi_kif)) {
+			error = ENODEV;
+			break;
+		}
+		error = pfi_get_ifaces(io->pfiio_name, io->pfiio_buffer,
+		    &io->pfiio_size);
+		break;
+	}
+
+	case DIOCSETIFFLAG: {
+		struct pfioc_iface *io = (struct pfioc_iface *)addr;
+
+		error = pfi_set_flags(io->pfiio_name, io->pfiio_flags);
+		break;
+	}
+
+	case DIOCCLRIFFLAG: {
+		struct pfioc_iface *io = (struct pfioc_iface *)addr;
+
+		error = pfi_clear_flags(io->pfiio_name, io->pfiio_flags);
+		break;
+	}
+
+	default:
+		error = ENODEV;
+		break;
+	}
+fail:
+#ifdef __FreeBSD__
+	PF_UNLOCK();
+
+	if (flags & FWRITE)
+		sx_xunlock(&pf_consistency_lock);
+	else
+		sx_sunlock(&pf_consistency_lock);
+#else
+	splx(s);
+	/* XXX: Lock order? */
+	if (flags & FWRITE)
+		rw_exit_write(&pf_consistency_lock);
+	else
+		rw_exit_read(&pf_consistency_lock);
+#endif
+	return (error);
+}
+
+#ifdef __FreeBSD__
+/*
+ * XXX - Check for version missmatch!!!
+ */
+static void
+pf_clear_states(void)
+{
+	struct pf_state		*state;
+
+	RB_FOREACH(state, pf_state_tree_id, &tree_id) {
+		state->timeout = PFTM_PURGE;
+#if NPFSYNC
+		/* don't send out individual delete messages */
+		state->sync_flags = PFSTATE_NOSYNC;
+#endif
+		pf_unlink_state(state);
+	}
+
+#if 0 /* NPFSYNC */
+/*
+ * XXX This is called on module unload, we do not want to sync that over? */
+ */
+	pfsync_clear_states(pf_status.hostid, psk->psk_ifname);
+#endif
+}
+
+static int
+pf_clear_tables(void)
+{
+	struct pfioc_table io;
+	int error;
+
+	bzero(&io, sizeof(io));
+
+	error = pfr_clr_tables(&io.pfrio_table, &io.pfrio_ndel,
+	    io.pfrio_flags);
+
+	return (error);
+}
+
+static void
+pf_clear_srcnodes(void)
+{
+	struct pf_src_node	*n;
+	struct pf_state		*state;
+
+	RB_FOREACH(state, pf_state_tree_id, &tree_id) {
+		state->src_node = NULL;
+		state->nat_src_node = NULL;
+	}
+	RB_FOREACH(n, pf_src_tree, &tree_src_tracking) {
+		n->expire = 1;
+		n->states = 0;
+	}
+}
+/*
+ * XXX - Check for version missmatch!!!
+ */
+
+/*
+ * Duplicate pfctl -Fa operation to get rid of as much as we can.
+ */
+static int
+shutdown_pf(void)
+{
+	int error = 0;
+	u_int32_t t[5];
+	char nn = '\0';
+
+	pf_status.running = 0;
+	do {
+		if ((error = pf_begin_rules(&t[0], PF_RULESET_SCRUB, &nn))
+		    != 0) {
+			DPFPRINTF(PF_DEBUG_MISC, ("shutdown_pf: SCRUB\n"));
+			break;
+		}
+		if ((error = pf_begin_rules(&t[1], PF_RULESET_FILTER, &nn))
+		    != 0) {
+			DPFPRINTF(PF_DEBUG_MISC, ("shutdown_pf: FILTER\n"));
+			break;		/* XXX: rollback? */
+		}
+		if ((error = pf_begin_rules(&t[2], PF_RULESET_NAT, &nn))
+		    != 0) {
+			DPFPRINTF(PF_DEBUG_MISC, ("shutdown_pf: NAT\n"));
+			break;		/* XXX: rollback? */
+		}
+		if ((error = pf_begin_rules(&t[3], PF_RULESET_BINAT, &nn))
+		    != 0) {
+			DPFPRINTF(PF_DEBUG_MISC, ("shutdown_pf: BINAT\n"));
+			break;		/* XXX: rollback? */
+		}
+		if ((error = pf_begin_rules(&t[4], PF_RULESET_RDR, &nn))
+		    != 0) {
+			DPFPRINTF(PF_DEBUG_MISC, ("shutdown_pf: RDR\n"));
+			break;		/* XXX: rollback? */
+		}
+
+		/* XXX: these should always succeed here */
+		pf_commit_rules(t[0], PF_RULESET_SCRUB, &nn);
+		pf_commit_rules(t[1], PF_RULESET_FILTER, &nn);
+		pf_commit_rules(t[2], PF_RULESET_NAT, &nn);
+		pf_commit_rules(t[3], PF_RULESET_BINAT, &nn);
+		pf_commit_rules(t[4], PF_RULESET_RDR, &nn);
+
+		if ((error = pf_clear_tables()) != 0)
+			break;
+
+#ifdef ALTQ
+		if ((error = pf_begin_altq(&t[0])) != 0) {
+			DPFPRINTF(PF_DEBUG_MISC, ("shutdown_pf: ALTQ\n"));
+			break;
+		}
+		pf_commit_altq(t[0]);
+#endif
+
+		pf_clear_states();
+
+		pf_clear_srcnodes();
+
+		/* status does not use malloced mem so no need to cleanup */
+		/* fingerprints and interfaces have thier own cleanup code */
+	} while(0);
+
+        return (error);
+}
+
+static int
+pf_check_in(void *arg, struct mbuf **m, struct ifnet *ifp, int dir,
+    struct inpcb *inp)
+{
+	/*
+	 * XXX Wed Jul 9 22:03:16 2003 UTC
+	 * OpenBSD has changed its byte ordering convention on ip_len/ip_off
+	 * in network stack. OpenBSD's network stack have converted
+	 * ip_len/ip_off to host byte order frist as FreeBSD.
+	 * Now this is not true anymore , so we should convert back to network
+	 * byte order. 
+	 */
+	struct ip *h = NULL;
+	int chk;
+
+	if ((*m)->m_pkthdr.len >= (int)sizeof(struct ip)) {
+		/* if m_pkthdr.len is less than ip header, pf will handle. */
+		h = mtod(*m, struct ip *);
+	        HTONS(h->ip_len);
+	        HTONS(h->ip_off);
+	}
+	chk = pf_test(PF_IN, ifp, m, NULL, inp);
+	if (chk && *m) {
+		m_freem(*m);
+		*m = NULL;
+	}
+	if (*m != NULL) {
+		/* pf_test can change ip header location */
+		h = mtod(*m, struct ip *);
+		NTOHS(h->ip_len);
+		NTOHS(h->ip_off);
+	}
+	return chk;
+}
+
+static int
+pf_check_out(void *arg, struct mbuf **m, struct ifnet *ifp, int dir,
+    struct inpcb *inp)
+{
+	/*
+	 * XXX Wed Jul 9 22:03:16 2003 UTC
+	 * OpenBSD has changed its byte ordering convention on ip_len/ip_off
+	 * in network stack. OpenBSD's network stack have converted
+	 * ip_len/ip_off to host byte order frist as FreeBSD.
+	 * Now this is not true anymore , so we should convert back to network
+	 * byte order. 
+	 */
+	struct ip *h = NULL;
+	int chk;
+
+	/* We need a proper CSUM befor we start (s. OpenBSD ip_output) */
+	if ((*m)->m_pkthdr.csum_flags & CSUM_DELAY_DATA) {
+		in_delayed_cksum(*m);
+		(*m)->m_pkthdr.csum_flags &= ~CSUM_DELAY_DATA;
+	}
+	if ((*m)->m_pkthdr.len >= (int)sizeof(*h)) {
+		/* if m_pkthdr.len is less than ip header, pf will handle. */
+		h = mtod(*m, struct ip *);
+	        HTONS(h->ip_len);
+	        HTONS(h->ip_off);
+	}
+	chk = pf_test(PF_OUT, ifp, m, NULL, inp);
+	if (chk && *m) {
+		m_freem(*m);
+		*m = NULL;
+	}
+	if (*m != NULL) {
+		/* pf_test can change ip header location */
+		h = mtod(*m, struct ip *);
+		NTOHS(h->ip_len);
+		NTOHS(h->ip_off);
+	}
+	return chk;
+}
+
+#ifdef INET6
+static int
+pf_check6_in(void *arg, struct mbuf **m, struct ifnet *ifp, int dir,
+    struct inpcb *inp)
+{
+
+	/*
+	 * IPv6 is not affected by ip_len/ip_off byte order changes.
+	 */
+	int chk;
+
+	/*
+	 * In case of loopback traffic IPv6 uses the real interface in
+	 * order to support scoped addresses. In order to support stateful
+	 * filtering we have change this to lo0 as it is the case in IPv4.
+	 */
+	chk = pf_test6(PF_IN, (*m)->m_flags & M_LOOP ? V_loif : ifp, m,
+	    NULL, inp);
+	if (chk && *m) {
+		m_freem(*m);
+		*m = NULL;
+	}
+	return chk;
+}
+
+static int
+pf_check6_out(void *arg, struct mbuf **m, struct ifnet *ifp, int dir,
+    struct inpcb *inp)
+{
+	/*
+	 * IPv6 does not affected ip_len/ip_off byte order changes.
+	 */
+	int chk;
+
+	/* We need a proper CSUM befor we start (s. OpenBSD ip_output) */
+	if ((*m)->m_pkthdr.csum_flags & CSUM_DELAY_DATA) {
+		in_delayed_cksum(*m);
+		(*m)->m_pkthdr.csum_flags &= ~CSUM_DELAY_DATA;
+	}
+	chk = pf_test6(PF_OUT, ifp, m, NULL, inp);
+	if (chk && *m) {
+		m_freem(*m);
+		*m = NULL;
+	}
+	return chk;
+}
+#endif /* INET6 */
+
+static int
+hook_pf(void)
+{
+	struct pfil_head *pfh_inet;
+#ifdef INET6
+	struct pfil_head *pfh_inet6;
+#endif
+	
+	PF_ASSERT(MA_NOTOWNED);
+
+	if (pf_pfil_hooked)
+		return (0); 
+	
+	pfh_inet = pfil_head_get(PFIL_TYPE_AF, AF_INET);
+	if (pfh_inet == NULL)
+		return (ESRCH); /* XXX */
+	pfil_add_hook(pf_check_in, NULL, PFIL_IN | PFIL_WAITOK, pfh_inet);
+	pfil_add_hook(pf_check_out, NULL, PFIL_OUT | PFIL_WAITOK, pfh_inet);
+#ifdef INET6
+	pfh_inet6 = pfil_head_get(PFIL_TYPE_AF, AF_INET6);
+	if (pfh_inet6 == NULL) {
+		pfil_remove_hook(pf_check_in, NULL, PFIL_IN | PFIL_WAITOK,
+		    pfh_inet);
+		pfil_remove_hook(pf_check_out, NULL, PFIL_OUT | PFIL_WAITOK,
+		    pfh_inet);
+		return (ESRCH); /* XXX */
+	}
+	pfil_add_hook(pf_check6_in, NULL, PFIL_IN | PFIL_WAITOK, pfh_inet6);
+	pfil_add_hook(pf_check6_out, NULL, PFIL_OUT | PFIL_WAITOK, pfh_inet6);
+#endif
+
+	pf_pfil_hooked = 1;
+	return (0);
+}
+
+static int
+dehook_pf(void)
+{
+	struct pfil_head *pfh_inet;
+#ifdef INET6
+	struct pfil_head *pfh_inet6;
+#endif
+
+	PF_ASSERT(MA_NOTOWNED);
+
+	if (pf_pfil_hooked == 0)
+		return (0);
+
+	pfh_inet = pfil_head_get(PFIL_TYPE_AF, AF_INET);
+	if (pfh_inet == NULL)
+		return (ESRCH); /* XXX */
+	pfil_remove_hook(pf_check_in, NULL, PFIL_IN | PFIL_WAITOK,
+	    pfh_inet);
+	pfil_remove_hook(pf_check_out, NULL, PFIL_OUT | PFIL_WAITOK,
+	    pfh_inet);
+#ifdef INET6
+	pfh_inet6 = pfil_head_get(PFIL_TYPE_AF, AF_INET6);
+	if (pfh_inet6 == NULL)
+		return (ESRCH); /* XXX */
+	pfil_remove_hook(pf_check6_in, NULL, PFIL_IN | PFIL_WAITOK,
+	    pfh_inet6);
+	pfil_remove_hook(pf_check6_out, NULL, PFIL_OUT | PFIL_WAITOK,
+	    pfh_inet6);
+#endif
+
+	pf_pfil_hooked = 0;
+	return (0);
+}
+
+static int
+pf_load(void)
+{
+	init_zone_var();
+	init_pf_mutex();
+	pf_dev = make_dev(&pf_cdevsw, 0, 0, 0, 0600, PF_NAME);
+	if (pfattach() < 0) {
+		destroy_dev(pf_dev);
+		destroy_pf_mutex();
+		return (ENOMEM);
+	}
+	return (0);
+}
+
+static int
+pf_unload(void)
+{
+	int error = 0;
+
+	PF_LOCK();
+	pf_status.running = 0;
+	PF_UNLOCK();
+	error = dehook_pf();
+	if (error) {
+		/*
+		 * Should not happen!
+		 * XXX Due to error code ESRCH, kldunload will show
+		 * a message like 'No such process'.
+		 */
+		printf("%s : pfil unregisteration fail\n", __FUNCTION__);
+		return error;
+	}
+	PF_LOCK();
+	shutdown_pf();
+	pf_end_threads = 1;
+	while (pf_end_threads < 2) {
+		wakeup_one(pf_purge_thread);
+		msleep(pf_purge_thread, &pf_task_mtx, 0, "pftmo", hz);
+	}
+	pfi_cleanup();
+	pf_osfp_flush();
+	pf_osfp_cleanup();
+	cleanup_pf_zone();
+	PF_UNLOCK();
+	destroy_dev(pf_dev);
+	destroy_pf_mutex();
+	return error;
+}
+
+static int
+pf_modevent(module_t mod, int type, void *data)
+{
+	int error = 0;
+
+	switch(type) {
+	case MOD_LOAD:
+		error = pf_load();
+		break;
+
+	case MOD_UNLOAD:
+		error = pf_unload();
+		break;
+	default:
+		error = EINVAL;
+		break;
+	}
+	return error;
+}
+
+static moduledata_t pf_mod = {
+	"pf",
+	pf_modevent,
+	0
+};
+
+DECLARE_MODULE(pf, pf_mod, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_FIRST);
+MODULE_VERSION(pf, PF_MODVER);
+#endif	/* __FreeBSD__ */