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SSLproxy/xnu/xnu-4903.221.2/net/pfvar.h
Soner Tari 009fe9f6ad Merge sslsplit develop changes
2019-08-08 12:23:04 +03:00

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/*
* Copyright (c) 2007-2017 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* $apfw: git commit b6bf13f8321283cd7ee82b1795e86506084b1b95 $ */
/* $OpenBSD: pfvar.h,v 1.259 2007/12/02 12:08:04 pascoe Exp $ */
/*
* Copyright (c) 2001 Daniel Hartmeier
* NAT64 - Copyright (c) 2010 Viagenie Inc. (http://www.viagenie.ca)
* 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.
*
*/
#ifndef _NET_PFVAR_H_
#define _NET_PFVAR_H_
#ifdef PRIVATE
/*
* XXX
* XXX Private interfaces. Do not include this file; use pfctl(8) instead.
* XXX
*/
#if PF || !defined(KERNEL)
#ifdef __cplusplus
extern "C" {
#endif
#include <stdbool.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/queue.h>
#include <libkern/tree.h>
#include <net/radix.h>
#include <netinet/in.h>
#include <net/if_var.h>
#ifdef KERNEL
#include <kern/kern_types.h>
#include <kern/zalloc.h>
#include <kern/locks.h>
#include <machine/endian.h>
#include <sys/systm.h>
#include <net/pf_pbuf.h>
#if BYTE_ORDER == BIG_ENDIAN
#define htobe64(x) (x)
#else /* LITTLE ENDIAN */
#define htobe64(x) __DARWIN_OSSwapInt64(x)
#endif /* LITTLE_ENDIAN */
#define be64toh(x) htobe64(x)
extern lck_rw_t *pf_perim_lock;
extern lck_mtx_t *pf_lock;
struct pool {
struct zone *pool_zone; /* pointer to backend zone */
const char *pool_name; /* name of pool */
unsigned int pool_count; /* # of outstanding elements */
unsigned int pool_hiwat; /* high watermark */
unsigned int pool_limit; /* hard limit */
unsigned int pool_fails; /* # of failed allocs due to limit */
};
#define PR_NOWAIT FALSE
#define PR_WAITOK TRUE
__private_extern__ void pool_init(struct pool *, size_t, unsigned int,
unsigned int, int, const char *, void *);
__private_extern__ void pool_destroy(struct pool *);
__private_extern__ void pool_sethiwat(struct pool *, int);
__private_extern__ void pool_sethardlimit(struct pool *, int,
const char *, int);
__private_extern__ void *pool_get(struct pool *, int);
__private_extern__ void pool_put(struct pool *, void *);
__private_extern__ u_int64_t pf_time_second(void);
__private_extern__ u_int64_t pf_calendar_time_second(void);
#endif /* KERNEL */
union sockaddr_union {
struct sockaddr sa;
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
};
#define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0)
#define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1)
#define PF_MD5_DIGEST_LENGTH 16
#ifdef MD5_DIGEST_LENGTH
#if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH
#error
#endif /* PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH */
#endif /* MD5_DIGEST_LENGTH */
#ifdef KERNEL
struct ip;
struct ip6_hdr;
struct tcphdr;
struct pf_grev1_hdr;
struct pf_esp_hdr;
#endif /* KERNEL */
#define PF_GRE_PPTP_VARIANT 0x01
enum { PF_INOUT, PF_IN, PF_OUT };
enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT,
PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP,
PF_DUMMYNET, PF_NODUMMYNET, PF_NAT64, PF_NONAT64 };
enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_DUMMYNET,
PF_RULESET_MAX };
enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG };
enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER,
PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET };
enum { PF_GET_NONE, PF_GET_CLR_CNTR };
/*
* Note about PFTM_*: real indices into pf_rule.timeout[] come before
* PFTM_MAX, special cases afterwards. See pf_state_expires().
*/
enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED,
PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE,
PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY,
PFTM_GREv1_FIRST_PACKET, PFTM_GREv1_INITIATING,
PFTM_GREv1_ESTABLISHED, PFTM_ESP_FIRST_PACKET, PFTM_ESP_INITIATING,
PFTM_ESP_ESTABLISHED, PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE,
PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL,
PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE,
PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED };
/* PFTM default values */
#define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */
#define PFTM_TCP_OPENING_VAL 30 /* No response yet */
#define PFTM_TCP_ESTABLISHED_VAL (24 * 60 * 60) /* Established */
#define PFTM_TCP_CLOSING_VAL (15 * 60) /* Half closed */
#define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */
#define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */
#define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */
#define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */
#define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */
#define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */
#define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */
#define PFTM_GREv1_FIRST_PACKET_VAL 120
#define PFTM_GREv1_INITIATING_VAL 30
#define PFTM_GREv1_ESTABLISHED_VAL 1800
#define PFTM_ESP_FIRST_PACKET_VAL 120
#define PFTM_ESP_INITIATING_VAL 30
#define PFTM_ESP_ESTABLISHED_VAL 900
#define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */
#define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */
#define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */
#define PFTM_FRAG_VAL 30 /* Fragment expire */
#define PFTM_INTERVAL_VAL 10 /* Expire interval */
#define PFTM_SRC_NODE_VAL 0 /* Source tracking */
#define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */
enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
enum { PF_LIMIT_STATES,
PF_LIMIT_APP_STATES,
PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS,
PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX };
#define PF_POOL_IDMASK 0x0f
enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN };
enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED,
PF_ADDR_RANGE };
#define PF_POOL_TYPEMASK 0x0f
#define PF_POOL_STICKYADDR 0x20
#define PF_WSCALE_FLAG 0x80
#define PF_WSCALE_MASK 0x0f
#define PF_LOG 0x01
#define PF_LOG_ALL 0x02
#define PF_LOG_SOCKET_LOOKUP 0x04
struct pf_addr {
union {
struct in_addr _v4addr;
struct in6_addr _v6addr;
u_int8_t _addr8[16];
u_int16_t _addr16[8];
u_int32_t _addr32[4];
} pfa; /* 128-bit address */
#define v4addr pfa._v4addr
#define v6addr pfa._v6addr
#define addr8 pfa._addr8
#define addr16 pfa._addr16
#define addr32 pfa._addr32
};
#define PF_TABLE_NAME_SIZE 32
#define PFI_AFLAG_NETWORK 0x01
#define PFI_AFLAG_BROADCAST 0x02
#define PFI_AFLAG_PEER 0x04
#define PFI_AFLAG_MODEMASK 0x07
#define PFI_AFLAG_NOALIAS 0x08
#ifndef RTLABEL_LEN
#define RTLABEL_LEN 32
#endif
struct pf_addr_wrap {
union {
struct {
struct pf_addr addr;
struct pf_addr mask;
} a;
char ifname[IFNAMSIZ];
char tblname[PF_TABLE_NAME_SIZE];
char rtlabelname[RTLABEL_LEN];
u_int32_t rtlabel;
} v;
union {
#ifdef KERNEL
struct pfi_dynaddr *dyn __attribute__((aligned(8)));
struct pfr_ktable *tbl __attribute__((aligned(8)));
#else /* !KERNEL */
void *dyn __attribute__((aligned(8)));
void *tbl __attribute__((aligned(8)));
#endif /* !KERNEL */
int dyncnt __attribute__((aligned(8)));
int tblcnt __attribute__((aligned(8)));
} p __attribute__((aligned(8)));
u_int8_t type; /* PF_ADDR_* */
u_int8_t iflags; /* PFI_AFLAG_* */
};
struct pf_port_range {
u_int16_t port[2];
u_int8_t op;
};
union pf_rule_xport {
struct pf_port_range range;
u_int16_t call_id;
u_int32_t spi;
};
#ifdef KERNEL
struct pfi_dynaddr {
TAILQ_ENTRY(pfi_dynaddr) entry;
struct pf_addr pfid_addr4;
struct pf_addr pfid_mask4;
struct pf_addr pfid_addr6;
struct pf_addr pfid_mask6;
struct pfr_ktable *pfid_kt;
struct pfi_kif *pfid_kif;
void *pfid_hook_cookie;
int pfid_net; /* mask or 128 */
int pfid_acnt4; /* address count IPv4 */
int pfid_acnt6; /* address count IPv6 */
sa_family_t pfid_af; /* rule af */
u_int8_t pfid_iflags; /* PFI_AFLAG_* */
};
/*
* Address manipulation macros
*/
#if INET
#if !INET6
#define PF_INET_ONLY
#endif /* ! INET6 */
#endif /* INET */
#if INET6
#if !INET
#define PF_INET6_ONLY
#endif /* ! INET */
#endif /* INET6 */
#if INET
#if INET6
#define PF_INET_INET6
#endif /* INET6 */
#endif /* INET */
#else /* !KERNEL */
#define PF_INET_INET6
#endif /* !KERNEL */
/* Both IPv4 and IPv6 */
#ifdef PF_INET_INET6
#define PF_AEQ(a, b, c) \
((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \
((a)->addr32[3] == (b)->addr32[3] && \
(a)->addr32[2] == (b)->addr32[2] && \
(a)->addr32[1] == (b)->addr32[1] && \
(a)->addr32[0] == (b)->addr32[0])) \
#define PF_ANEQ(a, b, c) \
((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \
((a)->addr32[3] != (b)->addr32[3] || \
(a)->addr32[2] != (b)->addr32[2] || \
(a)->addr32[1] != (b)->addr32[1] || \
(a)->addr32[0] != (b)->addr32[0])) \
#define PF_ALEQ(a, b, c) \
((c == AF_INET && (a)->addr32[0] <= (b)->addr32[0]) || \
((a)->addr32[3] <= (b)->addr32[3] && \
(a)->addr32[2] <= (b)->addr32[2] && \
(a)->addr32[1] <= (b)->addr32[1] && \
(a)->addr32[0] <= (b)->addr32[0])) \
#define PF_AZERO(a, c) \
((c == AF_INET && !(a)->addr32[0]) || \
(!(a)->addr32[0] && !(a)->addr32[1] && \
!(a)->addr32[2] && !(a)->addr32[3])) \
#define PF_MATCHA(n, a, m, b, f) \
pf_match_addr(n, a, m, b, f)
#define PF_ACPY(a, b, f) \
pf_addrcpy(a, b, f)
#define PF_AINC(a, f) \
pf_addr_inc(a, f)
#define PF_POOLMASK(a, b, c, d, f) \
pf_poolmask(a, b, c, d, f)
#else
/* Just IPv6 */
#ifdef PF_INET6_ONLY
#define PF_AEQ(a, b, c) \
((a)->addr32[3] == (b)->addr32[3] && \
(a)->addr32[2] == (b)->addr32[2] && \
(a)->addr32[1] == (b)->addr32[1] && \
(a)->addr32[0] == (b)->addr32[0]) \
#define PF_ANEQ(a, b, c) \
((a)->addr32[3] != (b)->addr32[3] || \
(a)->addr32[2] != (b)->addr32[2] || \
(a)->addr32[1] != (b)->addr32[1] || \
(a)->addr32[0] != (b)->addr32[0]) \
#define PF_ALEQ(a, b, c) \
((a)->addr32[3] <= (b)->addr32[3] && \
(a)->addr32[2] <= (b)->addr32[2] && \
(a)->addr32[1] <= (b)->addr32[1] && \
(a)->addr32[0] <= (b)->addr32[0]) \
#define PF_AZERO(a, c) \
(!(a)->addr32[0] && \
!(a)->addr32[1] && \
!(a)->addr32[2] && \
!(a)->addr32[3]) \
#define PF_MATCHA(n, a, m, b, f) \
pf_match_addr(n, a, m, b, f)
#define PF_ACPY(a, b, f) \
pf_addrcpy(a, b, f)
#define PF_AINC(a, f) \
pf_addr_inc(a, f)
#define PF_POOLMASK(a, b, c, d, f) \
pf_poolmask(a, b, c, d, f)
#else
/* Just IPv4 */
#ifdef PF_INET_ONLY
#define PF_AEQ(a, b, c) \
((a)->addr32[0] == (b)->addr32[0])
#define PF_ANEQ(a, b, c) \
((a)->addr32[0] != (b)->addr32[0])
#define PF_ALEQ(a, b, c) \
((a)->addr32[0] <= (b)->addr32[0])
#define PF_AZERO(a, c) \
(!(a)->addr32[0])
#define PF_MATCHA(n, a, m, b, f) \
pf_match_addr(n, a, m, b, f)
#define PF_ACPY(a, b, f) \
(a)->v4.s_addr = (b)->v4.s_addr
#define PF_AINC(a, f) \
do { \
(a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \
} while (0)
#define PF_POOLMASK(a, b, c, d, f) \
do { \
(a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \
(((c)->addr32[0] ^ 0xffffffff) & (d)->addr32[0]); \
} while (0)
#endif /* PF_INET_ONLY */
#endif /* PF_INET6_ONLY */
#endif /* PF_INET_INET6 */
#ifdef KERNEL
#define PF_MISMATCHAW(aw, x, af, neg, ifp) \
( \
(((aw)->type == PF_ADDR_NOROUTE && \
pf_routable((x), (af), NULL)) || \
(((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
pf_routable((x), (af), (ifp))) || \
((aw)->type == PF_ADDR_RTLABEL && \
!pf_rtlabel_match((x), (af), (aw))) || \
((aw)->type == PF_ADDR_TABLE && \
!pfr_match_addr((aw)->p.tbl, (x), (af))) || \
((aw)->type == PF_ADDR_DYNIFTL && \
!pfi_match_addr((aw)->p.dyn, (x), (af))) || \
((aw)->type == PF_ADDR_RANGE && \
!pf_match_addr_range(&(aw)->v.a.addr, \
&(aw)->v.a.mask, (x), (af))) || \
((aw)->type == PF_ADDR_ADDRMASK && \
!PF_AZERO(&(aw)->v.a.mask, (af)) && \
!PF_MATCHA(0, &(aw)->v.a.addr, \
&(aw)->v.a.mask, (x), (af))))) != \
(neg) \
)
#endif /* KERNEL */
struct pf_rule_uid {
uid_t uid[2];
u_int8_t op;
u_int8_t _pad[3];
};
struct pf_rule_gid {
uid_t gid[2];
u_int8_t op;
u_int8_t _pad[3];
};
struct pf_rule_addr {
struct pf_addr_wrap addr;
union pf_rule_xport xport;
u_int8_t neg;
};
struct pf_pooladdr {
struct pf_addr_wrap addr;
TAILQ_ENTRY(pf_pooladdr) entries;
#if !defined(__LP64__)
u_int32_t _pad[2];
#endif /* !__LP64__ */
char ifname[IFNAMSIZ];
#ifdef KERNEL
struct pfi_kif *kif __attribute__((aligned(8)));
#else /* !KERNEL */
void *kif __attribute__((aligned(8)));
#endif /* !KERNEL */
};
TAILQ_HEAD(pf_palist, pf_pooladdr);
struct pf_poolhashkey {
union {
u_int8_t key8[16];
u_int16_t key16[8];
u_int32_t key32[4];
} pfk; /* 128-bit hash key */
#define key8 pfk.key8
#define key16 pfk.key16
#define key32 pfk.key32
};
struct pf_pool {
struct pf_palist list;
#if !defined(__LP64__)
u_int32_t _pad[2];
#endif /* !__LP64__ */
#ifdef KERNEL
struct pf_pooladdr *cur __attribute__((aligned(8)));
#else /* !KERNEL */
void *cur __attribute__((aligned(8)));
#endif /* !KERNEL */
struct pf_poolhashkey key __attribute__((aligned(8)));
struct pf_addr counter;
int tblidx;
u_int16_t proxy_port[2];
u_int8_t port_op;
u_int8_t opts;
sa_family_t af;
};
/* A packed Operating System description for fingerprinting */
typedef u_int32_t pf_osfp_t;
#define PF_OSFP_ANY ((pf_osfp_t)0)
#define PF_OSFP_UNKNOWN ((pf_osfp_t)-1)
#define PF_OSFP_NOMATCH ((pf_osfp_t)-2)
struct pf_osfp_entry {
SLIST_ENTRY(pf_osfp_entry) fp_entry;
#if !defined(__LP64__)
u_int32_t _pad;
#endif /* !__LP64__ */
pf_osfp_t fp_os;
int fp_enflags;
#define PF_OSFP_EXPANDED 0x001 /* expanded entry */
#define PF_OSFP_GENERIC 0x002 /* generic signature */
#define PF_OSFP_NODETAIL 0x004 /* no p0f details */
#define PF_OSFP_LEN 32
char fp_class_nm[PF_OSFP_LEN];
char fp_version_nm[PF_OSFP_LEN];
char fp_subtype_nm[PF_OSFP_LEN];
};
#define PF_OSFP_ENTRY_EQ(a, b) \
((a)->fp_os == (b)->fp_os && \
memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
/* handle pf_osfp_t packing */
#define _FP_RESERVED_BIT 1 /* For the special negative #defines */
#define _FP_UNUSED_BITS 1
#define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */
#define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */
#define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */
#define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \
(class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \
((1 << _FP_CLASS_BITS) - 1); \
(version) = ((osfp) >> _FP_SUBTYPE_BITS) & \
((1 << _FP_VERSION_BITS) - 1);\
(subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \
} while (0)
#define PF_OSFP_PACK(osfp, class, version, subtype) do { \
(osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \
+ _FP_SUBTYPE_BITS); \
(osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \
_FP_SUBTYPE_BITS; \
(osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \
} while (0)
/* the fingerprint of an OSes TCP SYN packet */
typedef u_int64_t pf_tcpopts_t;
struct pf_os_fingerprint {
SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
pf_tcpopts_t fp_tcpopts; /* packed TCP options */
u_int16_t fp_wsize; /* TCP window size */
u_int16_t fp_psize; /* ip->ip_len */
u_int16_t fp_mss; /* TCP MSS */
u_int16_t fp_flags;
#define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */
#define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */
#define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */
#define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */
#define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */
#define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */
#define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */
#define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */
#define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */
#define PF_OSFP_MSS 0x0200 /* TCP MSS */
#define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */
#define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */
#define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */
#define PF_OSFP_TS0 0x2000 /* Zero timestamp */
#define PF_OSFP_INET6 0x4000 /* IPv6 */
u_int8_t fp_optcnt; /* TCP option count */
u_int8_t fp_wscale; /* TCP window scaling */
u_int8_t fp_ttl; /* IPv4 TTL */
#define PF_OSFP_MAXTTL_OFFSET 40
/* TCP options packing */
#define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */
#define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */
#define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */
#define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */
#define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */
#define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */
#define PF_OSFP_MAX_OPTS \
(sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \
/ PF_OSFP_TCPOPT_BITS
SLIST_ENTRY(pf_os_fingerprint) fp_next;
};
struct pf_osfp_ioctl {
struct pf_osfp_entry fp_os;
pf_tcpopts_t fp_tcpopts; /* packed TCP options */
u_int16_t fp_wsize; /* TCP window size */
u_int16_t fp_psize; /* ip->ip_len */
u_int16_t fp_mss; /* TCP MSS */
u_int16_t fp_flags;
u_int8_t fp_optcnt; /* TCP option count */
u_int8_t fp_wscale; /* TCP window scaling */
u_int8_t fp_ttl; /* IPv4 TTL */
int fp_getnum; /* DIOCOSFPGET number */
};
union pf_rule_ptr {
struct pf_rule *ptr __attribute__((aligned(8)));
u_int32_t nr __attribute__((aligned(8)));
} __attribute__((aligned(8)));
#define PF_ANCHOR_NAME_SIZE 64
struct pf_rule {
struct pf_rule_addr src;
struct pf_rule_addr dst;
#define PF_SKIP_IFP 0
#define PF_SKIP_DIR 1
#define PF_SKIP_AF 2
#define PF_SKIP_PROTO 3
#define PF_SKIP_SRC_ADDR 4
#define PF_SKIP_SRC_PORT 5
#define PF_SKIP_DST_ADDR 6
#define PF_SKIP_DST_PORT 7
#define PF_SKIP_COUNT 8
union pf_rule_ptr skip[PF_SKIP_COUNT];
#define PF_RULE_LABEL_SIZE 64
char label[PF_RULE_LABEL_SIZE];
#define PF_QNAME_SIZE 64
char ifname[IFNAMSIZ];
char qname[PF_QNAME_SIZE];
char pqname[PF_QNAME_SIZE];
#define PF_TAG_NAME_SIZE 64
char tagname[PF_TAG_NAME_SIZE];
char match_tagname[PF_TAG_NAME_SIZE];
char overload_tblname[PF_TABLE_NAME_SIZE];
TAILQ_ENTRY(pf_rule) entries;
#if !defined(__LP64__)
u_int32_t _pad[2];
#endif /* !__LP64__ */
struct pf_pool rpool;
u_int64_t evaluations;
u_int64_t packets[2];
u_int64_t bytes[2];
u_int64_t ticket;
#define PF_OWNER_NAME_SIZE 64
char owner[PF_OWNER_NAME_SIZE];
u_int32_t priority;
#ifdef KERNEL
struct pfi_kif *kif __attribute__((aligned(8)));
#else /* !KERNEL */
void *kif __attribute__((aligned(8)));
#endif /* !KERNEL */
struct pf_anchor *anchor __attribute__((aligned(8)));
#ifdef KERNEL
struct pfr_ktable *overload_tbl __attribute__((aligned(8)));
#else /* !KERNEL */
void *overload_tbl __attribute__((aligned(8)));
#endif /* !KERNEL */
pf_osfp_t os_fingerprint __attribute__((aligned(8)));
unsigned int rtableid;
u_int32_t timeout[PFTM_MAX];
u_int32_t states;
u_int32_t max_states;
u_int32_t src_nodes;
u_int32_t max_src_nodes;
u_int32_t max_src_states;
u_int32_t max_src_conn;
struct {
u_int32_t limit;
u_int32_t seconds;
} max_src_conn_rate;
u_int32_t qid;
u_int32_t pqid;
u_int32_t rt_listid;
u_int32_t nr;
u_int32_t prob;
uid_t cuid;
pid_t cpid;
u_int16_t return_icmp;
u_int16_t return_icmp6;
u_int16_t max_mss;
u_int16_t tag;
u_int16_t match_tag;
struct pf_rule_uid uid;
struct pf_rule_gid gid;
u_int32_t rule_flag;
u_int8_t action;
u_int8_t direction;
u_int8_t log;
u_int8_t logif;
u_int8_t quick;
u_int8_t ifnot;
u_int8_t match_tag_not;
u_int8_t natpass;
#define PF_STATE_NORMAL 0x1
#define PF_STATE_MODULATE 0x2
#define PF_STATE_SYNPROXY 0x3
u_int8_t keep_state;
sa_family_t af;
u_int8_t proto;
u_int8_t type;
u_int8_t code;
u_int8_t flags;
u_int8_t flagset;
u_int8_t min_ttl;
u_int8_t allow_opts;
u_int8_t rt;
u_int8_t return_ttl;
/* service class categories */
#define SCIDX_MASK 0x0f
#define SC_BE 0x10
#define SC_BK_SYS 0x11
#define SC_BK 0x12
#define SC_RD 0x13
#define SC_OAM 0x14
#define SC_AV 0x15
#define SC_RV 0x16
#define SC_VI 0x17
#define SC_SIG 0x17
#define SC_VO 0x18
#define SC_CTL 0x19
/* diffserve code points */
#define DSCP_MASK 0xfc
#define DSCP_CUMASK 0x03
#define DSCP_EF 0xb8
#define DSCP_AF11 0x28
#define DSCP_AF12 0x30
#define DSCP_AF13 0x38
#define DSCP_AF21 0x48
#define DSCP_AF22 0x50
#define DSCP_AF23 0x58
#define DSCP_AF31 0x68
#define DSCP_AF32 0x70
#define DSCP_AF33 0x78
#define DSCP_AF41 0x88
#define DSCP_AF42 0x90
#define DSCP_AF43 0x98
#define AF_CLASSMASK 0xe0
#define AF_DROPPRECMASK 0x18
u_int8_t tos;
u_int8_t anchor_relative;
u_int8_t anchor_wildcard;
#define PF_FLUSH 0x01
#define PF_FLUSH_GLOBAL 0x02
u_int8_t flush;
u_int8_t proto_variant;
u_int8_t extfilter; /* Filter mode [PF_EXTFILTER_xxx] */
u_int8_t extmap; /* Mapping mode [PF_EXTMAP_xxx] */
u_int32_t dnpipe;
u_int32_t dntype;
};
/* pf device identifiers */
#define PFDEV_PF 0
#define PFDEV_PFM 1
#define PFDEV_MAX 2
/* rule flags */
#define PFRULE_DROP 0x0000
#define PFRULE_RETURNRST 0x0001
#define PFRULE_FRAGMENT 0x0002
#define PFRULE_RETURNICMP 0x0004
#define PFRULE_RETURN 0x0008
#define PFRULE_NOSYNC 0x0010
#define PFRULE_SRCTRACK 0x0020 /* track source states */
#define PFRULE_RULESRCTRACK 0x0040 /* per rule */
/* scrub flags */
#define PFRULE_NODF 0x0100
#define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */
#define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */
#define PFRULE_RANDOMID 0x0800
#define PFRULE_REASSEMBLE_TCP 0x1000
/* rule flags for TOS/DSCP/service class differentiation */
#define PFRULE_TOS 0x2000
#define PFRULE_DSCP 0x4000
#define PFRULE_SC 0x8000
/* rule flags again */
#define PFRULE_IFBOUND 0x00010000 /* if-bound */
#define PFRULE_PFM 0x00020000 /* created by pfm device */
#define PFSTATE_HIWAT 10000 /* default state table size */
#define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */
#define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */
#define PFAPPSTATE_HIWAT 10000 /* default same as state table */
enum pf_extmap {
PF_EXTMAP_APD = 1, /* Address-port-dependent mapping */
PF_EXTMAP_AD, /* Address-dependent mapping */
PF_EXTMAP_EI /* Endpoint-independent mapping */
};
enum pf_extfilter {
PF_EXTFILTER_APD = 1, /* Address-port-dependent filtering */
PF_EXTFILTER_AD, /* Address-dependent filtering */
PF_EXTFILTER_EI /* Endpoint-independent filtering */
};
struct pf_threshold {
u_int32_t limit;
#define PF_THRESHOLD_MULT 1000
#define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT
u_int32_t seconds;
u_int32_t count;
u_int32_t last;
};
struct pf_src_node {
RB_ENTRY(pf_src_node) entry;
struct pf_addr addr;
struct pf_addr raddr;
union pf_rule_ptr rule;
#ifdef KERNEL
struct pfi_kif *kif;
#else /* !KERNEL */
void *kif;
#endif /* !KERNEL */
u_int64_t bytes[2];
u_int64_t packets[2];
u_int32_t states;
u_int32_t conn;
struct pf_threshold conn_rate;
u_int64_t creation;
u_int64_t expire;
sa_family_t af;
u_int8_t ruletype;
};
#define PFSNODE_HIWAT 10000 /* default source node table size */
#ifdef KERNEL
struct pf_state_scrub {
struct timeval pfss_last; /* time received last packet */
u_int32_t pfss_tsecr; /* last echoed timestamp */
u_int32_t pfss_tsval; /* largest timestamp */
u_int32_t pfss_tsval0; /* original timestamp */
u_int16_t pfss_flags;
#define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */
#define PFSS_PAWS 0x0010 /* stricter PAWS checks */
#define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */
#define PFSS_DATA_TS 0x0040 /* timestamp on data packets */
#define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */
u_int8_t pfss_ttl; /* stashed TTL */
u_int8_t pad;
u_int32_t pfss_ts_mod; /* timestamp modulation */
};
#endif /* KERNEL */
union pf_state_xport {
u_int16_t port;
u_int16_t call_id;
u_int32_t spi;
};
struct pf_state_host {
struct pf_addr addr;
union pf_state_xport xport;
};
#ifdef KERNEL
struct pf_state_peer {
u_int32_t seqlo; /* Max sequence number sent */
u_int32_t seqhi; /* Max the other end ACKd + win */
u_int32_t seqdiff; /* Sequence number modulator */
u_int16_t max_win; /* largest window (pre scaling) */
u_int8_t state; /* active state level */
u_int8_t wscale; /* window scaling factor */
u_int16_t mss; /* Maximum segment size option */
u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
struct pf_state_scrub *scrub; /* state is scrubbed */
u_int8_t pad[3];
};
TAILQ_HEAD(pf_state_queue, pf_state);
struct pf_state;
struct pf_pdesc;
struct pf_app_state;
typedef void (*pf_app_handler)(struct pf_state *, int, int, struct pf_pdesc *,
struct pfi_kif *);
typedef int (*pf_app_compare)(struct pf_app_state *, struct pf_app_state *);
struct pf_pptp_state {
struct pf_state *grev1_state;
};
struct pf_grev1_state {
struct pf_state *pptp_state;
};
struct pf_ike_state {
u_int64_t cookie;
};
struct pf_app_state {
pf_app_handler handler;
pf_app_compare compare_lan_ext;
pf_app_compare compare_ext_gwy;
union {
struct pf_pptp_state pptp;
struct pf_grev1_state grev1;
struct pf_ike_state ike;
} u;
};
/* keep synced with struct pf_state, used in RB_FIND */
struct pf_state_key_cmp {
struct pf_state_host lan;
struct pf_state_host gwy;
struct pf_state_host ext_lan;
struct pf_state_host ext_gwy;
sa_family_t af_lan;
sa_family_t af_gwy;
u_int8_t proto;
u_int8_t direction;
u_int8_t proto_variant;
struct pf_app_state *app_state;
};
TAILQ_HEAD(pf_statelist, pf_state);
struct pf_state_key {
struct pf_state_host lan;
struct pf_state_host gwy;
struct pf_state_host ext_lan;
struct pf_state_host ext_gwy;
sa_family_t af_lan;
sa_family_t af_gwy;
u_int8_t proto;
u_int8_t direction;
u_int8_t proto_variant;
struct pf_app_state *app_state;
u_int32_t flowsrc;
u_int32_t flowhash;
RB_ENTRY(pf_state_key) entry_lan_ext;
RB_ENTRY(pf_state_key) entry_ext_gwy;
struct pf_statelist states;
u_int32_t refcnt;
};
/* keep synced with struct pf_state, used in RB_FIND */
struct pf_state_cmp {
u_int64_t id;
u_int32_t creatorid;
u_int32_t pad;
};
/* flowhash key (12-bytes multiple for performance) */
struct pf_flowhash_key {
struct pf_state_host ap1; /* address+port blob 1 */
struct pf_state_host ap2; /* address+port blob 2 */
u_int32_t af;
u_int32_t proto;
};
#endif /* KERNEL */
struct hook_desc;
TAILQ_HEAD(hook_desc_head, hook_desc);
#ifdef KERNEL
struct pf_state {
u_int64_t id;
u_int32_t creatorid;
u_int32_t pad;
TAILQ_ENTRY(pf_state) entry_list;
TAILQ_ENTRY(pf_state) next;
RB_ENTRY(pf_state) entry_id;
struct pf_state_peer src;
struct pf_state_peer dst;
union pf_rule_ptr rule;
union pf_rule_ptr anchor;
union pf_rule_ptr nat_rule;
struct pf_addr rt_addr;
struct hook_desc_head unlink_hooks;
struct pf_state_key *state_key;
struct pfi_kif *kif;
struct pfi_kif *rt_kif;
struct pf_src_node *src_node;
struct pf_src_node *nat_src_node;
u_int64_t packets[2];
u_int64_t bytes[2];
u_int64_t creation;
u_int64_t expire;
u_int64_t pfsync_time;
u_int16_t tag;
u_int8_t log;
u_int8_t allow_opts;
u_int8_t timeout;
u_int8_t sync_flags;
};
#endif /* KERNEL */
#define PFSTATE_NOSYNC 0x01
#define PFSTATE_FROMSYNC 0x02
#define PFSTATE_STALE 0x04
#define __packed __attribute__((__packed__))
/*
* Unified state structures for pulling states out of the kernel
* used by pfsync(4) and the pf(4) ioctl.
*/
struct pfsync_state_scrub {
u_int16_t pfss_flags;
u_int8_t pfss_ttl; /* stashed TTL */
#define PFSYNC_SCRUB_FLAG_VALID 0x01
u_int8_t scrub_flag;
u_int32_t pfss_ts_mod; /* timestamp modulation */
} __packed;
struct pfsync_state_host {
struct pf_addr addr;
union pf_state_xport xport;
u_int16_t pad[2];
} __packed;
struct pfsync_state_peer {
struct pfsync_state_scrub scrub; /* state is scrubbed */
u_int32_t seqlo; /* Max sequence number sent */
u_int32_t seqhi; /* Max the other end ACKd + win */
u_int32_t seqdiff; /* Sequence number modulator */
u_int16_t max_win; /* largest window (pre scaling) */
u_int16_t mss; /* Maximum segment size option */
u_int8_t state; /* active state level */
u_int8_t wscale; /* window scaling factor */
u_int8_t pad[6];
} __packed;
struct pfsync_state {
u_int32_t id[2];
char ifname[IFNAMSIZ];
struct pfsync_state_host lan;
struct pfsync_state_host gwy;
struct pfsync_state_host ext_lan;
struct pfsync_state_host ext_gwy;
struct pfsync_state_peer src;
struct pfsync_state_peer dst;
struct pf_addr rt_addr;
struct hook_desc_head unlink_hooks;
#if !defined(__LP64__)
u_int32_t _pad[2];
#endif /* !__LP64__ */
u_int32_t rule;
u_int32_t anchor;
u_int32_t nat_rule;
u_int64_t creation;
u_int64_t expire;
u_int32_t packets[2][2];
u_int32_t bytes[2][2];
u_int32_t creatorid;
u_int16_t tag;
sa_family_t af_lan;
sa_family_t af_gwy;
u_int8_t proto;
u_int8_t direction;
u_int8_t log;
u_int8_t allow_opts;
u_int8_t timeout;
u_int8_t sync_flags;
u_int8_t updates;
u_int8_t proto_variant;
u_int8_t __pad;
u_int32_t flowhash;
} __packed;
#define PFSYNC_FLAG_COMPRESS 0x01
#define PFSYNC_FLAG_STALE 0x02
#define PFSYNC_FLAG_SRCNODE 0x04
#define PFSYNC_FLAG_NATSRCNODE 0x08
#ifdef KERNEL
/* for copies to/from userland via pf_ioctl() */
#define pf_state_peer_to_pfsync(s, d) do { \
(d)->seqlo = (s)->seqlo; \
(d)->seqhi = (s)->seqhi; \
(d)->seqdiff = (s)->seqdiff; \
(d)->max_win = (s)->max_win; \
(d)->mss = (s)->mss; \
(d)->state = (s)->state; \
(d)->wscale = (s)->wscale; \
if ((s)->scrub) { \
(d)->scrub.pfss_flags = \
(s)->scrub->pfss_flags & PFSS_TIMESTAMP; \
(d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \
(d)->scrub.pfss_ts_mod = (s)->scrub->pfss_ts_mod; \
(d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \
} \
} while (0)
#define pf_state_peer_from_pfsync(s, d) do { \
(d)->seqlo = (s)->seqlo; \
(d)->seqhi = (s)->seqhi; \
(d)->seqdiff = (s)->seqdiff; \
(d)->max_win = (s)->max_win; \
(d)->mss = ntohs((s)->mss); \
(d)->state = (s)->state; \
(d)->wscale = (s)->wscale; \
if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
(d)->scrub != NULL) { \
(d)->scrub->pfss_flags = \
ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \
(d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \
(d)->scrub->pfss_ts_mod = (s)->scrub.pfss_ts_mod; \
} \
} while (0)
#endif /* KERNEL */
#define pf_state_counter_to_pfsync(s, d) do { \
d[0] = (s>>32)&0xffffffff; \
d[1] = s&0xffffffff; \
} while (0)
#define pf_state_counter_from_pfsync(s) \
(((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1]))
TAILQ_HEAD(pf_rulequeue, pf_rule);
struct pf_anchor;
struct pf_ruleset {
struct {
struct pf_rulequeue queues[2];
struct {
struct pf_rulequeue *ptr;
struct pf_rule **ptr_array;
u_int32_t rcount;
u_int32_t ticket;
int open;
} active, inactive;
} rules[PF_RULESET_MAX];
struct pf_anchor *anchor;
u_int32_t tticket;
int tables;
int topen;
};
RB_HEAD(pf_anchor_global, pf_anchor);
RB_HEAD(pf_anchor_node, pf_anchor);
struct pf_anchor {
RB_ENTRY(pf_anchor) entry_global;
RB_ENTRY(pf_anchor) entry_node;
struct pf_anchor *parent;
struct pf_anchor_node children;
char name[PF_ANCHOR_NAME_SIZE];
char path[MAXPATHLEN];
struct pf_ruleset ruleset;
int refcnt; /* anchor rules */
int match;
char owner[PF_OWNER_NAME_SIZE];
};
#ifdef KERNEL
RB_PROTOTYPE_SC(__private_extern__, pf_anchor_global, pf_anchor, entry_global,
pf_anchor_compare);
RB_PROTOTYPE_SC(__private_extern__, pf_anchor_node, pf_anchor, entry_node,
pf_anchor_compare);
#else /* !KERNEL */
RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
#endif /* !KERNEL */
#define PF_RESERVED_ANCHOR "_pf"
#define PFR_TFLAG_PERSIST 0x00000001
#define PFR_TFLAG_CONST 0x00000002
#define PFR_TFLAG_ACTIVE 0x00000004
#define PFR_TFLAG_INACTIVE 0x00000008
#define PFR_TFLAG_REFERENCED 0x00000010
#define PFR_TFLAG_REFDANCHOR 0x00000020
#define PFR_TFLAG_USRMASK 0x00000003
#define PFR_TFLAG_SETMASK 0x0000003C
#define PFR_TFLAG_ALLMASK 0x0000003F
struct pfr_table {
char pfrt_anchor[MAXPATHLEN];
char pfrt_name[PF_TABLE_NAME_SIZE];
u_int32_t pfrt_flags;
u_int8_t pfrt_fback;
};
enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE,
PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX };
struct pfr_addr {
union {
struct in_addr _pfra_ip4addr;
struct in6_addr _pfra_ip6addr;
} pfra_u;
u_int8_t pfra_af;
u_int8_t pfra_net;
u_int8_t pfra_not;
u_int8_t pfra_fback;
};
#define pfra_ip4addr pfra_u._pfra_ip4addr
#define pfra_ip6addr pfra_u._pfra_ip6addr
enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
#define PFR_OP_XPASS PFR_OP_ADDR_MAX
struct pfr_astats {
struct pfr_addr pfras_a;
#if !defined(__LP64__)
u_int32_t _pad;
#endif /* !__LP64__ */
u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
u_int64_t pfras_tzero;
};
enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
struct pfr_tstats {
struct pfr_table pfrts_t;
u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX];
u_int64_t pfrts_match;
u_int64_t pfrts_nomatch;
u_int64_t pfrts_tzero;
int pfrts_cnt;
int pfrts_refcnt[PFR_REFCNT_MAX];
#if !defined(__LP64__)
u_int32_t _pad;
#endif /* !__LP64__ */
};
#define pfrts_name pfrts_t.pfrt_name
#define pfrts_flags pfrts_t.pfrt_flags
#ifdef KERNEL
SLIST_HEAD(pfr_kentryworkq, pfr_kentry);
struct pfr_kentry {
struct radix_node pfrke_node[2];
union sockaddr_union pfrke_sa;
u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX];
SLIST_ENTRY(pfr_kentry) pfrke_workq;
u_int64_t pfrke_tzero;
u_int8_t pfrke_af;
u_int8_t pfrke_net;
u_int8_t pfrke_not;
u_int8_t pfrke_mark;
u_int8_t pfrke_intrpool;
};
SLIST_HEAD(pfr_ktableworkq, pfr_ktable);
RB_HEAD(pfr_ktablehead, pfr_ktable);
struct pfr_ktable {
struct pfr_tstats pfrkt_ts;
RB_ENTRY(pfr_ktable) pfrkt_tree;
SLIST_ENTRY(pfr_ktable) pfrkt_workq;
struct radix_node_head *pfrkt_ip4;
struct radix_node_head *pfrkt_ip6;
struct pfr_ktable *pfrkt_shadow;
struct pfr_ktable *pfrkt_root;
struct pf_ruleset *pfrkt_rs;
u_int64_t pfrkt_larg;
u_int32_t pfrkt_nflags;
};
#define pfrkt_t pfrkt_ts.pfrts_t
#define pfrkt_name pfrkt_t.pfrt_name
#define pfrkt_anchor pfrkt_t.pfrt_anchor
#define pfrkt_ruleset pfrkt_t.pfrt_ruleset
#define pfrkt_flags pfrkt_t.pfrt_flags
#define pfrkt_cnt pfrkt_ts.pfrts_cnt
#define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
#define pfrkt_packets pfrkt_ts.pfrts_packets
#define pfrkt_bytes pfrkt_ts.pfrts_bytes
#define pfrkt_match pfrkt_ts.pfrts_match
#define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
#define pfrkt_tzero pfrkt_ts.pfrts_tzero
RB_HEAD(pf_state_tree_lan_ext, pf_state_key);
RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_lan_ext, pf_state_key,
entry_lan_ext, pf_state_compare_lan_ext);
RB_HEAD(pf_state_tree_ext_gwy, pf_state_key);
RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_ext_gwy, pf_state_key,
entry_ext_gwy, pf_state_compare_ext_gwy);
RB_HEAD(pfi_ifhead, pfi_kif);
/* state tables */
extern struct pf_state_tree_lan_ext pf_statetbl_lan_ext;
extern struct pf_state_tree_ext_gwy pf_statetbl_ext_gwy;
/* keep synced with pfi_kif, used in RB_FIND */
struct pfi_kif_cmp {
char pfik_name[IFNAMSIZ];
};
struct pfi_kif {
char pfik_name[IFNAMSIZ];
RB_ENTRY(pfi_kif) pfik_tree;
u_int64_t pfik_packets[2][2][2];
u_int64_t pfik_bytes[2][2][2];
u_int64_t pfik_tzero;
int pfik_flags;
void *pfik_ah_cookie;
struct ifnet *pfik_ifp;
int pfik_states;
int pfik_rules;
TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs;
};
enum pfi_kif_refs {
PFI_KIF_REF_NONE,
PFI_KIF_REF_STATE,
PFI_KIF_REF_RULE
};
struct pfi_uif {
#else /* !KERNEL */
struct pfi_kif {
#endif /* !KERNEL */
char pfik_name[IFNAMSIZ];
u_int64_t pfik_packets[2][2][2];
u_int64_t pfik_bytes[2][2][2];
u_int64_t pfik_tzero;
int pfik_flags;
int pfik_states;
int pfik_rules;
#if !defined(__LP64__)
u_int32_t _pad;
#endif /* !__LP64__ */
};
#define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */
#ifdef KERNEL
struct pf_pdesc {
struct {
int done;
uid_t uid;
gid_t gid;
pid_t pid;
} lookup;
u_int64_t tot_len; /* Make Mickey money */
union {
struct tcphdr *tcp;
struct udphdr *udp;
struct icmp *icmp;
#if INET6
struct icmp6_hdr *icmp6;
#endif /* INET6 */
struct pf_grev1_hdr *grev1;
struct pf_esp_hdr *esp;
void *any;
} hdr;
/* XXX TODO: Change baddr and naddr to *saddr */
struct pf_addr baddr; /* src address before translation */
struct pf_addr bdaddr; /* dst address before translation */
struct pf_addr naddr; /* src address after translation */
struct pf_addr ndaddr; /* dst address after translation */
struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */
struct pf_addr *src;
struct pf_addr *dst;
struct ether_header
*eh;
pbuf_t *mp;
int lmw; /* lazy writable offset */
struct pf_mtag *pf_mtag;
u_int16_t *ip_sum;
u_int32_t off; /* protocol header offset */
u_int32_t hdrlen; /* protocol header length */
u_int32_t p_len; /* total length of payload */
u_int16_t flags; /* Let SCRUB trigger behavior in */
/* state code. Easier than tags */
#define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */
#define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */
#define PFDESC_IP_FRAG 0x0004 /* This is a fragment */
sa_family_t af;
sa_family_t naf; /* address family after translation */
u_int8_t proto;
u_int8_t tos;
u_int8_t ttl;
u_int8_t proto_variant;
mbuf_svc_class_t sc; /* mbuf service class (MBUF_SVC) */
u_int32_t pktflags; /* mbuf packet flags (PKTF) */
u_int32_t flowsrc; /* flow source (FLOWSRC) */
u_int32_t flowhash; /* flow hash to identify the sender */
};
#endif /* KERNEL */
/* flags for RDR options */
#define PF_DPORT_RANGE 0x01 /* Dest port uses range */
#define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */
/* Reasons code for passing/dropping a packet */
#define PFRES_MATCH 0 /* Explicit match of a rule */
#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */
#define PFRES_FRAG 2 /* Dropping following fragment */
#define PFRES_SHORT 3 /* Dropping short packet */
#define PFRES_NORM 4 /* Dropping by normalizer */
#define PFRES_MEMORY 5 /* Dropped due to lacking mem */
#define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */
#define PFRES_CONGEST 7 /* Congestion (of ipintrq) */
#define PFRES_IPOPTIONS 8 /* IP option */
#define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */
#define PFRES_BADSTATE 10 /* State mismatch */
#define PFRES_STATEINS 11 /* State insertion failure */
#define PFRES_MAXSTATES 12 /* State limit */
#define PFRES_SRCLIMIT 13 /* Source node/conn limit */
#define PFRES_SYNPROXY 14 /* SYN proxy */
#define PFRES_DUMMYNET 15 /* Dummynet */
#define PFRES_MAX 16 /* total+1 */
#define PFRES_NAMES { \
"match", \
"bad-offset", \
"fragment", \
"short", \
"normalize", \
"memory", \
"bad-timestamp", \
"congestion", \
"ip-option", \
"proto-cksum", \
"state-mismatch", \
"state-insert", \
"state-limit", \
"src-limit", \
"synproxy", \
"dummynet", \
NULL \
}
/* Counters for other things we want to keep track of */
#define LCNT_STATES 0 /* states */
#define LCNT_SRCSTATES 1 /* max-src-states */
#define LCNT_SRCNODES 2 /* max-src-nodes */
#define LCNT_SRCCONN 3 /* max-src-conn */
#define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */
#define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */
#define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */
#define LCNT_MAX 7 /* total+1 */
#define LCNT_NAMES { \
"max states per rule", \
"max-src-states", \
"max-src-nodes", \
"max-src-conn", \
"max-src-conn-rate", \
"overload table insertion", \
"overload flush states", \
NULL \
}
/* UDP state enumeration */
#define PFUDPS_NO_TRAFFIC 0
#define PFUDPS_SINGLE 1
#define PFUDPS_MULTIPLE 2
#define PFUDPS_NSTATES 3 /* number of state levels */
#define PFUDPS_NAMES { \
"NO_TRAFFIC", \
"SINGLE", \
"MULTIPLE", \
NULL \
}
/* GREv1 protocol state enumeration */
#define PFGRE1S_NO_TRAFFIC 0
#define PFGRE1S_INITIATING 1
#define PFGRE1S_ESTABLISHED 2
#define PFGRE1S_NSTATES 3 /* number of state levels */
#define PFGRE1S_NAMES { \
"NO_TRAFFIC", \
"INITIATING", \
"ESTABLISHED", \
NULL \
}
#define PFESPS_NO_TRAFFIC 0
#define PFESPS_INITIATING 1
#define PFESPS_ESTABLISHED 2
#define PFESPS_NSTATES 3 /* number of state levels */
#define PFESPS_NAMES { "NO_TRAFFIC", "INITIATING", "ESTABLISHED", NULL }
/* Other protocol state enumeration */
#define PFOTHERS_NO_TRAFFIC 0
#define PFOTHERS_SINGLE 1
#define PFOTHERS_MULTIPLE 2
#define PFOTHERS_NSTATES 3 /* number of state levels */
#define PFOTHERS_NAMES { \
"NO_TRAFFIC", \
"SINGLE", \
"MULTIPLE", \
NULL \
}
#define FCNT_STATE_SEARCH 0
#define FCNT_STATE_INSERT 1
#define FCNT_STATE_REMOVALS 2
#define FCNT_MAX 3
#define SCNT_SRC_NODE_SEARCH 0
#define SCNT_SRC_NODE_INSERT 1
#define SCNT_SRC_NODE_REMOVALS 2
#define SCNT_MAX 3
#ifdef KERNEL
#define ACTION_SET(a, x) \
do { \
if ((a) != NULL) \
*(a) = (x); \
} while (0)
#define REASON_SET(a, x) \
do { \
if ((a) != NULL) \
*(a) = (x); \
if (x < PFRES_MAX) \
pf_status.counters[x]++; \
} while (0)
#endif /* KERNEL */
struct pf_status {
u_int64_t counters[PFRES_MAX];
u_int64_t lcounters[LCNT_MAX]; /* limit counters */
u_int64_t fcounters[FCNT_MAX];
u_int64_t scounters[SCNT_MAX];
u_int64_t pcounters[2][2][3];
u_int64_t bcounters[2][2];
u_int64_t stateid;
u_int32_t running;
u_int32_t states;
u_int32_t src_nodes;
u_int64_t since __attribute__((aligned(8)));
u_int32_t debug;
u_int32_t hostid;
char ifname[IFNAMSIZ];
u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH];
};
struct cbq_opts {
u_int32_t minburst;
u_int32_t maxburst;
u_int32_t pktsize;
u_int32_t maxpktsize;
u_int32_t ns_per_byte;
u_int32_t maxidle;
int32_t minidle;
u_int32_t offtime;
u_int32_t flags;
};
struct priq_opts {
u_int32_t flags;
};
struct qfq_opts {
u_int32_t flags;
u_int32_t lmax;
};
struct hfsc_opts {
/* real-time service curve */
u_int64_t rtsc_m1; /* slope of the 1st segment in bps */
u_int64_t rtsc_d; /* the x-projection of m1 in msec */
u_int64_t rtsc_m2; /* slope of the 2nd segment in bps */
u_int32_t rtsc_fl; /* service curve flags */
#if !defined(__LP64__)
u_int32_t _pad;
#endif /* !__LP64__ */
/* link-sharing service curve */
u_int64_t lssc_m1;
u_int64_t lssc_d;
u_int64_t lssc_m2;
u_int32_t lssc_fl;
#if !defined(__LP64__)
u_int32_t __pad;
#endif /* !__LP64__ */
/* upper-limit service curve */
u_int64_t ulsc_m1;
u_int64_t ulsc_d;
u_int64_t ulsc_m2;
u_int32_t ulsc_fl;
u_int32_t flags; /* scheduler flags */
};
struct fairq_opts {
u_int32_t nbuckets; /* hash buckets */
u_int32_t flags;
u_int64_t hogs_m1; /* hog detection bandwidth */
/* link-sharing service curve */
u_int64_t lssc_m1;
u_int64_t lssc_d;
u_int64_t lssc_m2;
};
/* bandwidth types */
#define PF_ALTQ_BW_ABSOLUTE 1 /* bw in absolute value (bps) */
#define PF_ALTQ_BW_PERCENT 2 /* bandwidth in percentage */
/* ALTQ rule flags */
#define PF_ALTQF_TBR 0x1 /* enable Token Bucket Regulator */
/* queue rule flags */
#define PF_ALTQ_QRF_WEIGHT 0x1 /* weight instead of priority */
struct pf_altq {
char ifname[IFNAMSIZ];
/* discipline-specific state */
void *altq_disc __attribute__((aligned(8)));
TAILQ_ENTRY(pf_altq) entries __attribute__((aligned(8)));
#if !defined(__LP64__)
u_int32_t _pad[2];
#endif /* !__LP64__ */
u_int32_t aflags; /* ALTQ rule flags */
u_int32_t bwtype; /* bandwidth type */
/* scheduler spec */
u_int32_t scheduler; /* scheduler type */
u_int32_t tbrsize; /* tokenbucket regulator size */
u_int64_t ifbandwidth; /* interface bandwidth */
/* queue spec */
char qname[PF_QNAME_SIZE]; /* queue name */
char parent[PF_QNAME_SIZE]; /* parent name */
u_int32_t parent_qid; /* parent queue id */
u_int32_t qrflags; /* queue rule flags */
union {
u_int32_t priority; /* priority */
u_int32_t weight; /* weight */
};
u_int32_t qlimit; /* queue size limit */
u_int32_t flags; /* misc flags */
#if !defined(__LP64__)
u_int32_t __pad;
#endif /* !__LP64__ */
u_int64_t bandwidth; /* queue bandwidth */
union {
struct cbq_opts cbq_opts;
struct priq_opts priq_opts;
struct hfsc_opts hfsc_opts;
struct fairq_opts fairq_opts;
struct qfq_opts qfq_opts;
} pq_u;
u_int32_t qid; /* return value */
};
struct pf_tagname {
TAILQ_ENTRY(pf_tagname) entries;
char name[PF_TAG_NAME_SIZE];
u_int16_t tag;
int ref;
};
#define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */
#define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */
#define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */
#define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */
#define PFR_KTABLE_HIWAT 1000 /* Number of tables */
#define PFR_KENTRY_HIWAT 200000 /* Number of table entries */
#define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */
/*
* ioctl parameter structures
*/
struct pfioc_pooladdr {
u_int32_t action;
u_int32_t ticket;
u_int32_t nr;
u_int32_t r_num;
u_int8_t r_action;
u_int8_t r_last;
u_int8_t af;
char anchor[MAXPATHLEN];
struct pf_pooladdr addr;
};
struct pfioc_rule {
u_int32_t action;
u_int32_t ticket;
u_int32_t pool_ticket;
u_int32_t nr;
char anchor[MAXPATHLEN];
char anchor_call[MAXPATHLEN];
struct pf_rule rule;
};
struct pfioc_natlook {
struct pf_addr saddr;
struct pf_addr daddr;
struct pf_addr rsaddr;
struct pf_addr rdaddr;
union pf_state_xport sxport;
union pf_state_xport dxport;
union pf_state_xport rsxport;
union pf_state_xport rdxport;
sa_family_t af;
u_int8_t proto;
u_int8_t proto_variant;
u_int8_t direction;
};
struct pfioc_state {
struct pfsync_state state;
};
struct pfioc_src_node_kill {
/* XXX returns the number of src nodes killed in psnk_af */
sa_family_t psnk_af;
struct pf_rule_addr psnk_src;
struct pf_rule_addr psnk_dst;
};
struct pfioc_state_addr_kill {
struct pf_addr_wrap addr;
u_int8_t reserved_[3];
u_int8_t neg;
union pf_rule_xport xport;
};
struct pfioc_state_kill {
/* XXX returns the number of states killed in psk_af */
sa_family_t psk_af;
u_int8_t psk_proto;
u_int8_t psk_proto_variant;
u_int8_t _pad;
struct pfioc_state_addr_kill psk_src;
struct pfioc_state_addr_kill psk_dst;
char psk_ifname[IFNAMSIZ];
char psk_ownername[PF_OWNER_NAME_SIZE];
};
struct pfioc_states {
int ps_len;
union {
caddr_t psu_buf;
struct pfsync_state *psu_states;
} ps_u __attribute__((aligned(8)));
#define ps_buf ps_u.psu_buf
#define ps_states ps_u.psu_states
};
#ifdef KERNEL
struct pfioc_states_32 {
int ps_len;
union {
user32_addr_t psu_buf;
user32_addr_t psu_states;
} ps_u __attribute__((aligned(8)));
};
struct pfioc_states_64 {
int ps_len;
union {
user64_addr_t psu_buf;
user64_addr_t psu_states;
} ps_u __attribute__((aligned(8)));
};
#endif /* KERNEL */
#define PFTOK_PROCNAME_LEN 64
#pragma pack(1)
struct pfioc_token {
u_int64_t token_value;
u_int64_t timestamp;
pid_t pid;
char proc_name[PFTOK_PROCNAME_LEN];
};
#pragma pack()
struct pfioc_kernel_token {
SLIST_ENTRY(pfioc_kernel_token) next;
struct pfioc_token token;
};
struct pfioc_remove_token {
u_int64_t token_value;
u_int64_t refcount;
};
struct pfioc_tokens {
int size;
union {
caddr_t pgtu_buf;
struct pfioc_token *pgtu_tokens;
} pgt_u __attribute__((aligned(8)));
#define pgt_buf pgt_u.pgtu_buf
#define pgt_tokens pgt_u.pgtu_tokens
};
#ifdef KERNEL
struct pfioc_tokens_32 {
int size;
union {
user32_addr_t pgtu_buf;
user32_addr_t pgtu_tokens;
} pgt_u __attribute__((aligned(8)));
};
struct pfioc_tokens_64 {
int size;
union {
user64_addr_t pgtu_buf;
user64_addr_t pgtu_tokens;
} pgt_u __attribute__((aligned(8)));
};
#endif /* KERNEL */
struct pfioc_src_nodes {
int psn_len;
union {
caddr_t psu_buf;
struct pf_src_node *psu_src_nodes;
} psn_u __attribute__((aligned(8)));
#define psn_buf psn_u.psu_buf
#define psn_src_nodes psn_u.psu_src_nodes
};
#ifdef KERNEL
struct pfioc_src_nodes_32 {
int psn_len;
union {
user32_addr_t psu_buf;
user32_addr_t psu_src_nodes;
} psn_u __attribute__((aligned(8)));
};
struct pfioc_src_nodes_64 {
int psn_len;
union {
user64_addr_t psu_buf;
user64_addr_t psu_src_nodes;
} psn_u __attribute__((aligned(8)));
};
#endif /* KERNEL */
struct pfioc_if {
char ifname[IFNAMSIZ];
};
struct pfioc_tm {
int timeout;
int seconds;
};
struct pfioc_limit {
int index;
unsigned limit;
};
struct pfioc_altq {
u_int32_t action;
u_int32_t ticket;
u_int32_t nr;
struct pf_altq altq __attribute__((aligned(8)));
};
struct pfioc_qstats {
u_int32_t ticket;
u_int32_t nr;
void *buf __attribute__((aligned(8)));
int nbytes __attribute__((aligned(8)));
u_int8_t scheduler;
};
struct pfioc_ruleset {
u_int32_t nr;
char path[MAXPATHLEN];
char name[PF_ANCHOR_NAME_SIZE];
};
#define PF_RULESET_ALTQ (PF_RULESET_MAX)
#define PF_RULESET_TABLE (PF_RULESET_MAX+1)
struct pfioc_trans {
int size; /* number of elements */
int esize; /* size of each element in bytes */
struct pfioc_trans_e {
int rs_num;
char anchor[MAXPATHLEN];
u_int32_t ticket;
} *array __attribute__((aligned(8)));
};
#ifdef KERNEL
struct pfioc_trans_32 {
int size; /* number of elements */
int esize; /* size of each element in bytes */
user32_addr_t array __attribute__((aligned(8)));
};
struct pfioc_trans_64 {
int size; /* number of elements */
int esize; /* size of each element in bytes */
user64_addr_t array __attribute__((aligned(8)));
};
#endif /* KERNEL */
#define PFR_FLAG_ATOMIC 0x00000001
#define PFR_FLAG_DUMMY 0x00000002
#define PFR_FLAG_FEEDBACK 0x00000004
#define PFR_FLAG_CLSTATS 0x00000008
#define PFR_FLAG_ADDRSTOO 0x00000010
#define PFR_FLAG_REPLACE 0x00000020
#define PFR_FLAG_ALLRSETS 0x00000040
#define PFR_FLAG_ALLMASK 0x0000007F
#ifdef KERNEL
#define PFR_FLAG_USERIOCTL 0x10000000
#endif /* KERNEL */
struct pfioc_table {
struct pfr_table pfrio_table;
void *pfrio_buffer __attribute__((aligned(8)));
int pfrio_esize __attribute__((aligned(8)));
int pfrio_size;
int pfrio_size2;
int pfrio_nadd;
int pfrio_ndel;
int pfrio_nchange;
int pfrio_flags;
u_int32_t pfrio_ticket;
};
#define pfrio_exists pfrio_nadd
#define pfrio_nzero pfrio_nadd
#define pfrio_nmatch pfrio_nadd
#define pfrio_naddr pfrio_size2
#define pfrio_setflag pfrio_size2
#define pfrio_clrflag pfrio_nadd
#ifdef KERNEL
struct pfioc_table_32 {
struct pfr_table pfrio_table;
user32_addr_t pfrio_buffer __attribute__((aligned(8)));
int pfrio_esize __attribute__((aligned(8)));
int pfrio_size;
int pfrio_size2;
int pfrio_nadd;
int pfrio_ndel;
int pfrio_nchange;
int pfrio_flags;
u_int32_t pfrio_ticket;
};
struct pfioc_table_64 {
struct pfr_table pfrio_table;
user64_addr_t pfrio_buffer __attribute__((aligned(8)));
int pfrio_esize __attribute__((aligned(8)));
int pfrio_size;
int pfrio_size2;
int pfrio_nadd;
int pfrio_ndel;
int pfrio_nchange;
int pfrio_flags;
u_int32_t pfrio_ticket;
};
#endif /* KERNEL */
struct pfioc_iface {
char pfiio_name[IFNAMSIZ];
void *pfiio_buffer __attribute__((aligned(8)));
int pfiio_esize __attribute__((aligned(8)));
int pfiio_size;
int pfiio_nzero;
int pfiio_flags;
};
#ifdef KERNEL
struct pfioc_iface_32 {
char pfiio_name[IFNAMSIZ];
user32_addr_t pfiio_buffer __attribute__((aligned(8)));
int pfiio_esize __attribute__((aligned(8)));
int pfiio_size;
int pfiio_nzero;
int pfiio_flags;
};
struct pfioc_iface_64 {
char pfiio_name[IFNAMSIZ];
user64_addr_t pfiio_buffer __attribute__((aligned(8)));
int pfiio_esize __attribute__((aligned(8)));
int pfiio_size;
int pfiio_nzero;
int pfiio_flags;
};
#endif /* KERNEL */
struct pf_ifspeed {
char ifname[IFNAMSIZ];
u_int64_t baudrate;
};
/*
* ioctl operations
*/
#define DIOCSTART _IO ('D', 1)
#define DIOCSTOP _IO ('D', 2)
#define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule)
#define DIOCGETSTARTERS _IOWR('D', 5, struct pfioc_tokens)
#define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule)
#define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule)
#define DIOCSTARTREF _IOR ('D', 8, u_int64_t)
#define DIOCSTOPREF _IOWR('D', 9, struct pfioc_remove_token)
/* XXX cut 10 - 17 */
#define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill)
#define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state)
#define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if)
#define DIOCGETSTATUS _IOWR('D', 21, struct pf_status)
#define DIOCCLRSTATUS _IO ('D', 22)
#define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook)
#define DIOCSETDEBUG _IOWR('D', 24, u_int32_t)
#define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states)
#define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule)
#define DIOCINSERTRULE _IOWR('D', 27, struct pfioc_rule)
#define DIOCDELETERULE _IOWR('D', 28, struct pfioc_rule)
#define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm)
#define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm)
#define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state)
#define DIOCCLRRULECTRS _IO ('D', 38)
#define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit)
#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
#define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill)
#define DIOCSTARTALTQ _IO ('D', 42)
#define DIOCSTOPALTQ _IO ('D', 43)
#define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq)
#define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq)
#define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq)
#define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq)
#define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats)
#define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr)
#define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr)
#define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr)
#define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr)
#define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr)
/* XXX cut 55 - 57 */
#define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset)
#define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset)
#define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table)
#define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table)
#define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table)
#define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table)
#define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table)
#define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table)
#define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table)
#define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table)
#define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table)
#define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table)
#define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table)
#define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table)
#define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table)
#define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table)
#define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table)
#define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table)
#define DIOCOSFPFLUSH _IO('D', 78)
#define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl)
#define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl)
#define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans)
#define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans)
#define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans)
#define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes)
#define DIOCCLRSRCNODES _IO('D', 85)
#define DIOCSETHOSTID _IOWR('D', 86, u_int32_t)
#define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface)
#define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface)
#define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface)
#define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill)
#define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed)
#ifdef KERNEL
RB_HEAD(pf_src_tree, pf_src_node);
RB_PROTOTYPE_SC(__private_extern__, pf_src_tree, pf_src_node, entry,
pf_src_compare);
extern struct pf_src_tree tree_src_tracking;
RB_HEAD(pf_state_tree_id, pf_state);
RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_id, pf_state,
entry_id, pf_state_compare_id);
extern struct pf_state_tree_id tree_id;
extern struct pf_state_queue state_list;
TAILQ_HEAD(pf_poolqueue, pf_pool);
extern struct pf_poolqueue pf_pools[2];
extern struct pf_palist pf_pabuf;
extern u_int32_t ticket_pabuf;
extern struct pf_poolqueue *pf_pools_active;
extern struct pf_poolqueue *pf_pools_inactive;
__private_extern__ int pf_tbladdr_setup(struct pf_ruleset *,
struct pf_addr_wrap *);
__private_extern__ void pf_tbladdr_remove(struct pf_addr_wrap *);
__private_extern__ void pf_tbladdr_copyout(struct pf_addr_wrap *);
__private_extern__ void pf_calc_skip_steps(struct pf_rulequeue *);
__private_extern__ u_int32_t pf_calc_state_key_flowhash(struct pf_state_key *);
extern struct pool pf_src_tree_pl, pf_rule_pl;
extern struct pool pf_state_pl, pf_state_key_pl, pf_pooladdr_pl;
extern struct pool pf_state_scrub_pl;
extern struct pool pf_app_state_pl;
extern struct thread *pf_purge_thread;
__private_extern__ void pfinit(void);
__private_extern__ void pf_purge_thread_fn(void *, wait_result_t);
__private_extern__ void pf_purge_expired_src_nodes(void);
__private_extern__ void pf_purge_expired_states(u_int32_t);
__private_extern__ void pf_unlink_state(struct pf_state *);
__private_extern__ void pf_free_state(struct pf_state *);
__private_extern__ int pf_insert_state(struct pfi_kif *, struct pf_state *);
__private_extern__ int pf_insert_src_node(struct pf_src_node **,
struct pf_rule *, struct pf_addr *, sa_family_t);
__private_extern__ void pf_src_tree_remove_state(struct pf_state *);
__private_extern__ struct pf_state *pf_find_state_byid(struct pf_state_cmp *);
__private_extern__ struct pf_state *pf_find_state_all(struct pf_state_key_cmp *,
u_int, int *);
__private_extern__ void pf_print_state(struct pf_state *);
__private_extern__ void pf_print_flags(u_int8_t);
__private_extern__ u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
u_int8_t);
extern struct ifnet *sync_ifp;
extern struct pf_rule pf_default_rule;
__private_extern__ void pf_addrcpy(struct pf_addr *, struct pf_addr *,
u_int8_t);
__private_extern__ void pf_rm_rule(struct pf_rulequeue *, struct pf_rule *);
struct ip_fw_args;
extern boolean_t is_nlc_enabled_glb;
extern boolean_t pf_is_nlc_enabled(void);
#if INET
__private_extern__ int pf_test(int, struct ifnet *, pbuf_t **,
struct ether_header *, struct ip_fw_args *);
__private_extern__ int pf_test_mbuf(int, struct ifnet *, struct mbuf **,
struct ether_header *, struct ip_fw_args *);
#endif /* INET */
#if INET6
__private_extern__ int pf_test6(int, struct ifnet *, pbuf_t **,
struct ether_header *, struct ip_fw_args *);
__private_extern__ int pf_test6_mbuf(int, struct ifnet *, struct mbuf **,
struct ether_header *, struct ip_fw_args *);
__private_extern__ void pf_poolmask(struct pf_addr *, struct pf_addr *,
struct pf_addr *, struct pf_addr *, u_int8_t);
__private_extern__ void pf_addr_inc(struct pf_addr *, sa_family_t);
#endif /* INET6 */
__private_extern__ void *pf_lazy_makewritable(struct pf_pdesc *,
pbuf_t *, int);
__private_extern__ void *pf_pull_hdr(pbuf_t *, int, void *, int,
u_short *, u_short *, sa_family_t);
__private_extern__ void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t);
__private_extern__ int pflog_packet(struct pfi_kif *, pbuf_t *,
sa_family_t, u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *,
struct pf_ruleset *, struct pf_pdesc *);
__private_extern__ int pf_match_addr(u_int8_t, struct pf_addr *,
struct pf_addr *, struct pf_addr *, sa_family_t);
__private_extern__ int pf_match_addr_range(struct pf_addr *, struct pf_addr *,
struct pf_addr *, sa_family_t);
__private_extern__ int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t);
__private_extern__ int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
__private_extern__ int pf_match_xport(u_int8_t, u_int8_t, union pf_rule_xport *,
union pf_state_xport *);
__private_extern__ int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
__private_extern__ int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
__private_extern__ void pf_normalize_init(void);
__private_extern__ int pf_normalize_isempty(void);
__private_extern__ int pf_normalize_ip(pbuf_t *, int, struct pfi_kif *,
u_short *, struct pf_pdesc *);
__private_extern__ int pf_normalize_ip6(pbuf_t *, int, struct pfi_kif *,
u_short *, struct pf_pdesc *);
__private_extern__ int pf_normalize_tcp(int, struct pfi_kif *, pbuf_t *,
int, int, void *, struct pf_pdesc *);
__private_extern__ void pf_normalize_tcp_cleanup(struct pf_state *);
__private_extern__ int pf_normalize_tcp_init(pbuf_t *, int,
struct pf_pdesc *, struct tcphdr *, struct pf_state_peer *,
struct pf_state_peer *);
__private_extern__ int pf_normalize_tcp_stateful(pbuf_t *, int,
struct pf_pdesc *, u_short *, struct tcphdr *, struct pf_state *,
struct pf_state_peer *, struct pf_state_peer *, int *);
__private_extern__ u_int64_t pf_state_expires(const struct pf_state *);
__private_extern__ void pf_purge_expired_fragments(void);
__private_extern__ int pf_routable(struct pf_addr *addr, sa_family_t af,
struct pfi_kif *);
__private_extern__ int pf_rtlabel_match(struct pf_addr *, sa_family_t,
struct pf_addr_wrap *);
__private_extern__ int pf_socket_lookup(int, struct pf_pdesc *);
__private_extern__ struct pf_state_key *pf_alloc_state_key(struct pf_state *,
struct pf_state_key *);
__private_extern__ void pfr_initialize(void);
__private_extern__ int pfr_match_addr(struct pfr_ktable *, struct pf_addr *,
sa_family_t);
__private_extern__ void pfr_update_stats(struct pfr_ktable *, struct pf_addr *,
sa_family_t, u_int64_t, int, int, int);
__private_extern__ int pfr_pool_get(struct pfr_ktable *, int *,
struct pf_addr *, struct pf_addr **, struct pf_addr **, sa_family_t);
__private_extern__ void pfr_dynaddr_update(struct pfr_ktable *,
struct pfi_dynaddr *);
__private_extern__ void pfr_table_copyin_cleanup(struct pfr_table *);
__private_extern__ struct pfr_ktable *pfr_attach_table(struct pf_ruleset *,
char *);
__private_extern__ void pfr_detach_table(struct pfr_ktable *);
__private_extern__ int pfr_clr_tables(struct pfr_table *, int *, int);
__private_extern__ int pfr_add_tables(user_addr_t, int, int *, int);
__private_extern__ int pfr_del_tables(user_addr_t, int, int *, int);
__private_extern__ int pfr_get_tables(struct pfr_table *, user_addr_t,
int *, int);
__private_extern__ int pfr_get_tstats(struct pfr_table *, user_addr_t,
int *, int);
__private_extern__ int pfr_clr_tstats(user_addr_t, int, int *, int);
__private_extern__ int pfr_set_tflags(user_addr_t, int, int, int, int *,
int *, int);
__private_extern__ int pfr_clr_addrs(struct pfr_table *, int *, int);
__private_extern__ int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *,
u_int64_t);
__private_extern__ int pfr_add_addrs(struct pfr_table *, user_addr_t,
int, int *, int);
__private_extern__ int pfr_del_addrs(struct pfr_table *, user_addr_t,
int, int *, int);
__private_extern__ int pfr_set_addrs(struct pfr_table *, user_addr_t,
int, int *, int *, int *, int *, int, u_int32_t);
__private_extern__ int pfr_get_addrs(struct pfr_table *, user_addr_t,
int *, int);
__private_extern__ int pfr_get_astats(struct pfr_table *, user_addr_t,
int *, int);
__private_extern__ int pfr_clr_astats(struct pfr_table *, user_addr_t,
int, int *, int);
__private_extern__ int pfr_tst_addrs(struct pfr_table *, user_addr_t,
int, int *, int);
__private_extern__ int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *,
int);
__private_extern__ int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *,
int);
__private_extern__ int pfr_ina_commit(struct pfr_table *, u_int32_t, int *,
int *, int);
__private_extern__ int pfr_ina_define(struct pfr_table *, user_addr_t,
int, int *, int *, u_int32_t, int);
extern struct pfi_kif *pfi_all;
__private_extern__ void pfi_initialize(void);
__private_extern__ struct pfi_kif *pfi_kif_get(const char *);
__private_extern__ void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs);
__private_extern__ void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs);
__private_extern__ int pfi_kif_match(struct pfi_kif *, struct pfi_kif *);
__private_extern__ void pfi_attach_ifnet(struct ifnet *);
__private_extern__ void pfi_detach_ifnet(struct ifnet *);
__private_extern__ int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *,
sa_family_t);
__private_extern__ int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t);
__private_extern__ void pfi_dynaddr_remove(struct pf_addr_wrap *);
__private_extern__ void pfi_dynaddr_copyout(struct pf_addr_wrap *);
__private_extern__ void pfi_update_status(const char *, struct pf_status *);
__private_extern__ int pfi_get_ifaces(const char *, user_addr_t, int *);
__private_extern__ int pfi_set_flags(const char *, int);
__private_extern__ int pfi_clear_flags(const char *, int);
__private_extern__ u_int16_t pf_tagname2tag(char *);
__private_extern__ void pf_tag2tagname(u_int16_t, char *);
__private_extern__ void pf_tag_ref(u_int16_t);
__private_extern__ void pf_tag_unref(u_int16_t);
__private_extern__ int pf_tag_packet(pbuf_t *, struct pf_mtag *,
int, unsigned int, struct pf_pdesc *);
__private_extern__ void pf_step_into_anchor(int *, struct pf_ruleset **, int,
struct pf_rule **, struct pf_rule **, int *);
__private_extern__ int pf_step_out_of_anchor(int *, struct pf_ruleset **, int,
struct pf_rule **, struct pf_rule **, int *);
__private_extern__ u_int32_t pf_qname2qid(char *);
__private_extern__ void pf_qid2qname(u_int32_t, char *);
__private_extern__ void pf_qid_unref(u_int32_t);
extern struct pf_status pf_status;
extern struct pool pf_frent_pl, pf_frag_pl;
struct pf_pool_limit {
void *pp;
unsigned limit;
};
extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX];
__private_extern__ int pf_af_hook(struct ifnet *, struct mbuf **,
struct mbuf **, unsigned int, int, struct ip_fw_args *);
__private_extern__ int pf_ifaddr_hook(struct ifnet *);
__private_extern__ void pf_ifnet_hook(struct ifnet *, int);
/*
* The following are defined with "private extern" storage class for
* kernel, and "extern" for user-space.
*/
extern struct pf_anchor_global pf_anchors;
extern struct pf_anchor pf_main_anchor;
#define pf_main_ruleset pf_main_anchor.ruleset
extern int pf_is_enabled;
extern int16_t pf_nat64_configured;
#define PF_IS_ENABLED (pf_is_enabled != 0)
extern u_int32_t pf_hash_seed;
/* these ruleset functions can be linked into userland programs (pfctl) */
__private_extern__ int pf_get_ruleset_number(u_int8_t);
__private_extern__ void pf_init_ruleset(struct pf_ruleset *);
__private_extern__ int pf_anchor_setup(struct pf_rule *,
const struct pf_ruleset *, const char *);
__private_extern__ int pf_anchor_copyout(const struct pf_ruleset *,
const struct pf_rule *, struct pfioc_rule *);
__private_extern__ void pf_anchor_remove(struct pf_rule *);
__private_extern__ void pf_remove_if_empty_ruleset(struct pf_ruleset *);
__private_extern__ struct pf_anchor *pf_find_anchor(const char *);
__private_extern__ struct pf_ruleset *pf_find_ruleset(const char *);
__private_extern__ struct pf_ruleset *pf_find_ruleset_with_owner(const char *,
const char *, int, int *);
__private_extern__ struct pf_ruleset *pf_find_or_create_ruleset(const char *);
__private_extern__ void pf_rs_initialize(void);
__private_extern__ int pf_osfp_add(struct pf_osfp_ioctl *);
__private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint(struct pf_pdesc *,
pbuf_t *, int, const struct tcphdr *);
__private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint_hdr(
const struct ip *, const struct ip6_hdr *, const struct tcphdr *);
__private_extern__ void pf_osfp_flush(void);
__private_extern__ int pf_osfp_get(struct pf_osfp_ioctl *);
__private_extern__ void pf_osfp_initialize(void);
__private_extern__ int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t);
__private_extern__ struct pf_os_fingerprint *pf_osfp_validate(void);
__private_extern__ struct pf_mtag *pf_find_mtag(struct mbuf *);
__private_extern__ struct pf_mtag *pf_find_mtag_pbuf(pbuf_t *);
__private_extern__ struct pf_mtag *pf_get_mtag(struct mbuf *);
__private_extern__ struct pf_mtag *pf_get_mtag_pbuf(pbuf_t *);
#else /* !KERNEL */
extern struct pf_anchor_global pf_anchors;
extern struct pf_anchor pf_main_anchor;
#define pf_main_ruleset pf_main_anchor.ruleset
/* these ruleset functions can be linked into userland programs (pfctl) */
extern int pf_get_ruleset_number(u_int8_t);
extern void pf_init_ruleset(struct pf_ruleset *);
extern int pf_anchor_setup(struct pf_rule *, const struct pf_ruleset *,
const char *);
extern int pf_anchor_copyout(const struct pf_ruleset *, const struct pf_rule *,
struct pfioc_rule *);
extern void pf_anchor_remove(struct pf_rule *);
extern void pf_remove_if_empty_ruleset(struct pf_ruleset *);
extern struct pf_anchor *pf_find_anchor(const char *);
extern struct pf_ruleset *pf_find_ruleset(const char *);
extern struct pf_ruleset *pf_find_ruleset_with_owner(const char *,
const char *, int, int *);
extern struct pf_ruleset *pf_find_or_create_ruleset(const char *);
extern void pf_rs_initialize(void);
#endif /* !KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* PF || !KERNEL */
#endif /* PRIVATE */
#endif /* _NET_PFVAR_H_ */
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