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SSLproxy/xnu/10.9/net/pfvar.h
Daniel Roethlisberger 6643d832d9 Add experimental support for pf on Mac OS X 
Support pf rdr on Mac OS X 10.7, 10.8 and 10.9 by including the missing
Apple headers in the source tree and enable private Apple code.  Since
we are using an interface marked private by Apple, this code is very
experimental.

Issue:		#15
Reported by:	Amit Chowdhary
2014-01-10 15:03:13 +01:00

2430 lines
71 KiB
C
Raw Blame History

/*
* Copyright (c) 2007-2013 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
* 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>
#ifdef KERNEL
#include <kern/kern_types.h>
#include <kern/zalloc.h>
#include <kern/lock.h>
#include <machine/endian.h>
#include <sys/systm.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 };
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_UNTIL_PACKET };
/* 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 v4;
struct in6_addr v6;
u_int8_t addr8[16];
u_int16_t addr16[8];
u_int32_t addr32[4];
} pfa; /* 128-bit address */
#define v4 pfa.v4
#define v6 pfa.v6
#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;
};
/* 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_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;
sa_family_t af;
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;
sa_family_t af;
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;
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;
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;
struct pf_addr baddr; /* address before translation */
struct pf_addr naddr; /* 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;
struct mbuf *mp;
int lmw; /* lazy writable offset */
struct pf_mtag *pf_mtag;
u_int16_t *ip_sum;
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;
u_int8_t proto;
u_int8_t tos;
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];
};
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;
#if PF_ALTQ
TAILQ_HEAD(pf_altqqueue, pf_altq);
extern struct pf_altqqueue pf_altqs[2];
extern u_int32_t ticket_altqs_active;
extern u_int32_t ticket_altqs_inactive;
extern int altqs_inactive_open;
extern struct pf_altqqueue *pf_altqs_active;
extern struct pf_altqqueue *pf_altqs_inactive;
#endif /* PF_ALTQ */
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;
#if PF_ALTQ
extern struct pool pf_altq_pl;
#endif /* PF_ALTQ */
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;
#if INET
__private_extern__ int pf_test(int, struct ifnet *, struct mbuf **,
struct ether_header *, struct ip_fw_args *);
#endif /* INET */
#if INET6
__private_extern__ int pf_test6(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__ struct mbuf *pf_lazy_makewritable(struct pf_pdesc *,
struct mbuf *, int);
__private_extern__ void *pf_pull_hdr(struct mbuf *, 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 *, struct mbuf *,
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(struct mbuf **, int, struct pfi_kif *,
u_short *, struct pf_pdesc *);
__private_extern__ int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *,
u_short *, struct pf_pdesc *);
__private_extern__ int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *,
int, int, void *, struct pf_pdesc *);
__private_extern__ void pf_normalize_tcp_cleanup(struct pf_state *);
__private_extern__ int pf_normalize_tcp_init(struct mbuf *, int,
struct pf_pdesc *, struct tcphdr *, struct pf_state_peer *,
struct pf_state_peer *);
__private_extern__ int pf_normalize_tcp_stateful(struct mbuf *, 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(struct mbuf *, 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;
#define PF_IS_ENABLED (pf_is_enabled != 0)
extern u_int32_t pf_hash_seed;
#if PF_ALTQ
extern u_int32_t altq_allowed;
#endif /* PF_ALTQ */
/* 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 *,
struct mbuf *, 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_get_mtag(struct mbuf *);
#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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