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| 1 | 13 | up20180614 | /* $NetBSD: pfvar.h,v 1.22 2014/06/05 23:48:16 rmind Exp $ */
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| 2 | /* $OpenBSD: pfvar.h,v 1.254 2007/07/13 09:17:48 markus Exp $ */
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| 3 | |||
| 4 | /*
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| 5 | * Copyright (c) 2001 Daniel Hartmeier
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| 6 | * All rights reserved.
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| 7 | *
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| 8 | * Redistribution and use in source and binary forms, with or without
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| 9 | * modification, are permitted provided that the following conditions
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| 10 | * are met:
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| 11 | *
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| 12 | * - Redistributions of source code must retain the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer.
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| 14 | * - Redistributions in binary form must reproduce the above
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| 15 | * copyright notice, this list of conditions and the following
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| 16 | * disclaimer in the documentation and/or other materials provided
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| 17 | * with the distribution.
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| 18 | *
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| 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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| 22 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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| 23 | * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 24 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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| 25 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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| 26 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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| 27 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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| 29 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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| 30 | * POSSIBILITY OF SUCH DAMAGE.
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| 31 | *
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| 32 | */
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| 33 | |||
| 34 | #ifndef _NET_PFVAR_H_
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| 35 | #define _NET_PFVAR_H_
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| 36 | |||
| 37 | #include <sys/param.h> |
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| 38 | #include <sys/types.h> |
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| 39 | #include <sys/queue.h> |
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| 40 | #include <sys/tree.h> |
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| 41 | #include <sys/rwlock.h> |
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| 42 | |||
| 43 | #include <net/radix.h> |
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| 44 | #if !defined(__NetBSD__) && !defined(__minix)
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| 45 | #include <net/route.h> |
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| 46 | #include <netinet/ip_ipsp.h> |
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| 47 | #else /* __NetBSD__ || __minix */ |
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| 48 | /* files above include netinet/in.h so include it too for compatibility */
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| 49 | #include <netinet/in.h> |
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| 50 | #endif /* __NetBSD__ || __minix */ |
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| 51 | #include <netinet/tcp_fsm.h> |
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| 52 | |||
| 53 | #if defined(__NetBSD__) && defined(_KERNEL)
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| 54 | #include <net/if_compat.h> |
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| 55 | #include <net/pf_mtag.h> |
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| 56 | #endif /* __NetBSD__ && _KERNEL */ |
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| 57 | |||
| 58 | struct ip;
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| 59 | struct ip6_hdr;
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| 60 | |||
| 61 | #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) |
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| 62 | #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) |
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| 63 | |||
| 64 | #define PF_MD5_DIGEST_LENGTH 16 |
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| 65 | #ifdef MD5_DIGEST_LENGTH
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| 66 | #if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH
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| 67 | #error
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| 68 | #endif
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| 69 | #endif
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| 70 | |||
| 71 | enum { PF_INOUT, PF_IN, PF_OUT };
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| 72 | enum { PF_LAN_EXT, PF_EXT_GWY, PF_ID };
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| 73 | enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT,
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| 74 | PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP }; |
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| 75 | enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT,
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| 76 | PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_MAX }; |
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| 77 | enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT,
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| 78 | PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; |
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| 79 | enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY };
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| 80 | enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL,
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| 81 | PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, |
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| 82 | PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; |
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| 83 | enum { PF_GET_NONE, PF_GET_CLR_CNTR };
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| 84 | |||
| 85 | /*
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| 86 | * Note about PFTM_*: real indices into pf_rule.timeout[] come before
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| 87 | * PFTM_MAX, special cases afterwards. See pf_state_expires().
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| 88 | */
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| 89 | enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED,
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| 90 | PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, |
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| 91 | PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, |
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| 92 | PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, |
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| 93 | PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, |
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| 94 | PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, |
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| 95 | PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, |
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| 96 | PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED, |
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| 97 | PFTM_UNTIL_PACKET }; |
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| 98 | |||
| 99 | /* PFTM default values */
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| 100 | #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */ |
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| 101 | #define PFTM_TCP_OPENING_VAL 30 /* No response yet */ |
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| 102 | #define PFTM_TCP_ESTABLISHED_VAL 24*60*60/* Established */ |
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| 103 | #define PFTM_TCP_CLOSING_VAL 15 * 60 /* Half closed */ |
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| 104 | #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */ |
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| 105 | #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */ |
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| 106 | #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */ |
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| 107 | #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */ |
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| 108 | #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */ |
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| 109 | #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */ |
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| 110 | #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */ |
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| 111 | #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */ |
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| 112 | #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */ |
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| 113 | #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */ |
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| 114 | #define PFTM_FRAG_VAL 30 /* Fragment expire */ |
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| 115 | #define PFTM_INTERVAL_VAL 10 /* Expire interval */ |
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| 116 | #define PFTM_SRC_NODE_VAL 0 /* Source tracking */ |
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| 117 | #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */ |
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| 118 | |||
| 119 | enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO };
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| 120 | enum { PF_LIMIT_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS,
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| 121 | PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX }; |
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| 122 | #define PF_POOL_IDMASK 0x0f |
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| 123 | enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM,
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| 124 | PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; |
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| 125 | enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL,
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| 126 | PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED }; |
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| 127 | #define PF_POOL_TYPEMASK 0x0f |
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| 128 | #define PF_POOL_STICKYADDR 0x20 |
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| 129 | #define PF_WSCALE_FLAG 0x80 |
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| 130 | #define PF_WSCALE_MASK 0x0f |
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| 131 | |||
| 132 | #define PF_LOG 0x01 |
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| 133 | #define PF_LOG_ALL 0x02 |
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| 134 | #define PF_LOG_SOCKET_LOOKUP 0x04 |
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| 135 | |||
| 136 | struct pf_addr {
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| 137 | union {
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| 138 | struct in_addr v4;
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| 139 | struct in6_addr v6;
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| 140 | u_int8_t addr8[16];
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| 141 | u_int16_t addr16[8];
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| 142 | u_int32_t addr32[4];
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| 143 | } pfa; /* 128-bit address */
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| 144 | #define v4 pfa.v4
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| 145 | #define v6 pfa.v6
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| 146 | #define addr8 pfa.addr8
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| 147 | #define addr16 pfa.addr16
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| 148 | #define addr32 pfa.addr32
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| 149 | }; |
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| 150 | |||
| 151 | #define PF_TABLE_NAME_SIZE 32 |
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| 152 | |||
| 153 | #define PFI_AFLAG_NETWORK 0x01 |
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| 154 | #define PFI_AFLAG_BROADCAST 0x02 |
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| 155 | #define PFI_AFLAG_PEER 0x04 |
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| 156 | #define PFI_AFLAG_MODEMASK 0x07 |
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| 157 | #define PFI_AFLAG_NOALIAS 0x08 |
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| 158 | |||
| 159 | #ifndef RTLABEL_LEN
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| 160 | #define RTLABEL_LEN 32 |
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| 161 | #endif
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| 162 | |||
| 163 | struct pf_addr_wrap {
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| 164 | union {
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| 165 | struct {
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| 166 | struct pf_addr addr;
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| 167 | struct pf_addr mask;
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| 168 | } a; |
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| 169 | char ifname[IFNAMSIZ];
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| 170 | char tblname[PF_TABLE_NAME_SIZE];
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| 171 | char rtlabelname[RTLABEL_LEN];
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| 172 | u_int32_t rtlabel; |
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| 173 | } v; |
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| 174 | union {
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| 175 | struct pfi_dynaddr *dyn;
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| 176 | struct pfr_ktable *tbl;
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| 177 | int dyncnt;
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| 178 | int tblcnt;
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| 179 | } p; |
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| 180 | u_int8_t type; /* PF_ADDR_* */
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| 181 | u_int8_t iflags; /* PFI_AFLAG_* */
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| 182 | }; |
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| 183 | |||
| 184 | #ifdef _KERNEL
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| 185 | |||
| 186 | struct pfi_dynaddr {
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| 187 | TAILQ_ENTRY(pfi_dynaddr) entry; |
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| 188 | struct pf_addr pfid_addr4;
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| 189 | struct pf_addr pfid_mask4;
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| 190 | struct pf_addr pfid_addr6;
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| 191 | struct pf_addr pfid_mask6;
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| 192 | struct pfr_ktable *pfid_kt;
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| 193 | struct pfi_kif *pfid_kif;
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| 194 | void *pfid_hook_cookie;
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| 195 | int pfid_net; /* mask or 128 */ |
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| 196 | int pfid_acnt4; /* address count IPv4 */ |
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| 197 | int pfid_acnt6; /* address count IPv6 */ |
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| 198 | sa_family_t pfid_af; /* rule af */
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| 199 | u_int8_t pfid_iflags; /* PFI_AFLAG_* */
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| 200 | }; |
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| 201 | |||
| 202 | /*
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| 203 | * Address manipulation macros
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| 204 | */
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| 205 | |||
| 206 | #ifdef INET
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| 207 | #ifndef INET6
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| 208 | #define PF_INET_ONLY
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| 209 | #endif /* ! INET6 */ |
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| 210 | #endif /* INET */ |
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| 211 | |||
| 212 | #ifdef INET6
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| 213 | #ifndef INET
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| 214 | #define PF_INET6_ONLY
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| 215 | #endif /* ! INET */ |
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| 216 | #endif /* INET6 */ |
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| 217 | |||
| 218 | #ifdef INET
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| 219 | #ifdef INET6
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| 220 | #define PF_INET_INET6
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| 221 | #endif /* INET6 */ |
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| 222 | #endif /* INET */ |
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| 223 | |||
| 224 | #else
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| 225 | |||
| 226 | #define PF_INET_INET6
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| 227 | |||
| 228 | #endif /* _KERNEL */ |
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| 229 | |||
| 230 | /* Both IPv4 and IPv6 */
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| 231 | #ifdef PF_INET_INET6
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| 232 | |||
| 233 | #define PF_AEQ(a, b, c) \
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| 234 | ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ |
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| 235 | ((a)->addr32[3] == (b)->addr32[3] && \ |
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| 236 | (a)->addr32[2] == (b)->addr32[2] && \ |
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| 237 | (a)->addr32[1] == (b)->addr32[1] && \ |
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| 238 | (a)->addr32[0] == (b)->addr32[0])) \ |
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| 239 | |||
| 240 | #define PF_ANEQ(a, b, c) \
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| 241 | ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ |
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| 242 | ((a)->addr32[3] != (b)->addr32[3] || \ |
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| 243 | (a)->addr32[2] != (b)->addr32[2] || \ |
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| 244 | (a)->addr32[1] != (b)->addr32[1] || \ |
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| 245 | (a)->addr32[0] != (b)->addr32[0])) \ |
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| 246 | |||
| 247 | #define PF_AZERO(a, c) \
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| 248 | ((c == AF_INET && !(a)->addr32[0]) || \
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| 249 | (!(a)->addr32[0] && !(a)->addr32[1] && \ |
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| 250 | !(a)->addr32[2] && !(a)->addr32[3] )) \ |
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| 251 | |||
| 252 | #define PF_MATCHA(n, a, m, b, f) \
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| 253 | pf_match_addr(n, a, m, b, f) |
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| 254 | |||
| 255 | #define PF_ACPY(a, b, f) \
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| 256 | pf_addrcpy(a, b, f) |
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| 257 | |||
| 258 | #define PF_AINC(a, f) \
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| 259 | pf_addr_inc(a, f) |
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| 260 | |||
| 261 | #define PF_POOLMASK(a, b, c, d, f) \
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| 262 | pf_poolmask(a, b, c, d, f) |
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| 263 | |||
| 264 | #else
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| 265 | |||
| 266 | /* Just IPv6 */
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| 267 | |||
| 268 | #ifdef PF_INET6_ONLY
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| 269 | |||
| 270 | #define PF_AEQ(a, b, c) \
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| 271 | ((a)->addr32[3] == (b)->addr32[3] && \ |
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| 272 | (a)->addr32[2] == (b)->addr32[2] && \ |
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| 273 | (a)->addr32[1] == (b)->addr32[1] && \ |
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| 274 | (a)->addr32[0] == (b)->addr32[0]) \ |
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| 275 | |||
| 276 | #define PF_ANEQ(a, b, c) \
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| 277 | ((a)->addr32[3] != (b)->addr32[3] || \ |
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| 278 | (a)->addr32[2] != (b)->addr32[2] || \ |
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| 279 | (a)->addr32[1] != (b)->addr32[1] || \ |
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| 280 | (a)->addr32[0] != (b)->addr32[0]) \ |
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| 281 | |||
| 282 | #define PF_AZERO(a, c) \
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| 283 | (!(a)->addr32[0] && \
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| 284 | !(a)->addr32[1] && \
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| 285 | !(a)->addr32[2] && \
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| 286 | !(a)->addr32[3] ) \
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| 287 | |||
| 288 | #define PF_MATCHA(n, a, m, b, f) \
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| 289 | pf_match_addr(n, a, m, b, f) |
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| 290 | |||
| 291 | #define PF_ACPY(a, b, f) \
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| 292 | pf_addrcpy(a, b, f) |
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| 293 | |||
| 294 | #define PF_AINC(a, f) \
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| 295 | pf_addr_inc(a, f) |
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| 296 | |||
| 297 | #define PF_POOLMASK(a, b, c, d, f) \
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| 298 | pf_poolmask(a, b, c, d, f) |
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| 299 | |||
| 300 | #else
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| 301 | |||
| 302 | /* Just IPv4 */
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| 303 | #ifdef PF_INET_ONLY
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| 304 | |||
| 305 | #define PF_AEQ(a, b, c) \
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| 306 | ((a)->addr32[0] == (b)->addr32[0]) |
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| 307 | |||
| 308 | #define PF_ANEQ(a, b, c) \
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| 309 | ((a)->addr32[0] != (b)->addr32[0]) |
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| 310 | |||
| 311 | #define PF_AZERO(a, c) \
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| 312 | (!(a)->addr32[0])
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| 313 | |||
| 314 | #define PF_MATCHA(n, a, m, b, f) \
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| 315 | pf_match_addr(n, a, m, b, f) |
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| 316 | |||
| 317 | #define PF_ACPY(a, b, f) \
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| 318 | (a)->v4.s_addr = (b)->v4.s_addr |
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| 319 | |||
| 320 | #define PF_AINC(a, f) \
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| 321 | do { \
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| 322 | (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ |
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| 323 | } while (0) |
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| 324 | |||
| 325 | #define PF_POOLMASK(a, b, c, d, f) \
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| 326 | do { \
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| 327 | (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ |
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| 328 | (((c)->addr32[0] ^ 0xffffffff ) & (d)->addr32[0]); \ |
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| 329 | } while (0) |
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| 330 | |||
| 331 | #endif /* PF_INET_ONLY */ |
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| 332 | #endif /* PF_INET6_ONLY */ |
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| 333 | #endif /* PF_INET_INET6 */ |
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| 334 | |||
| 335 | #define PF_MISMATCHAW(aw, x, af, neg, ifp) \
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| 336 | ( \ |
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| 337 | (((aw)->type == PF_ADDR_NOROUTE && \ |
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| 338 | pf_routable((x), (af), NULL)) || \
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| 339 | (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \
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| 340 | pf_routable((x), (af), (ifp))) || \ |
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| 341 | ((aw)->type == PF_ADDR_RTLABEL && \ |
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| 342 | !pf_rtlabel_match((x), (af), (aw))) || \ |
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| 343 | ((aw)->type == PF_ADDR_TABLE && \ |
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| 344 | !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ |
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| 345 | ((aw)->type == PF_ADDR_DYNIFTL && \ |
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| 346 | !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ |
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| 347 | ((aw)->type == PF_ADDR_ADDRMASK && \ |
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| 348 | !PF_AZERO(&(aw)->v.a.mask, (af)) && \ |
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| 349 | !PF_MATCHA(0, &(aw)->v.a.addr, \
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| 350 | &(aw)->v.a.mask, (x), (af))))) != \ |
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| 351 | (neg) \ |
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| 352 | ) |
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| 353 | |||
| 354 | |||
| 355 | struct pf_rule_uid {
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| 356 | uid_t uid[2];
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| 357 | u_int8_t op; |
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| 358 | }; |
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| 359 | |||
| 360 | struct pf_rule_gid {
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| 361 | uid_t gid[2];
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| 362 | u_int8_t op; |
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| 363 | }; |
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| 364 | |||
| 365 | struct pf_rule_addr {
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| 366 | struct pf_addr_wrap addr;
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| 367 | u_int16_t port[2];
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| 368 | u_int8_t neg; |
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| 369 | u_int8_t port_op; |
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| 370 | }; |
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| 371 | |||
| 372 | struct pf_pooladdr {
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| 373 | struct pf_addr_wrap addr;
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| 374 | TAILQ_ENTRY(pf_pooladdr) entries; |
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| 375 | char ifname[IFNAMSIZ];
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| 376 | struct pfi_kif *kif;
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| 377 | }; |
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| 378 | |||
| 379 | TAILQ_HEAD(pf_palist, pf_pooladdr); |
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| 380 | |||
| 381 | struct pf_poolhashkey {
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| 382 | union {
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| 383 | u_int8_t key8[16];
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| 384 | u_int16_t key16[8];
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| 385 | u_int32_t key32[4];
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| 386 | } pfk; /* 128-bit hash key */
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| 387 | #define key8 pfk.key8
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| 388 | #define key16 pfk.key16
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| 389 | #define key32 pfk.key32
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| 390 | }; |
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| 391 | |||
| 392 | struct pf_pool {
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| 393 | struct pf_palist list;
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| 394 | struct pf_pooladdr *cur;
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| 395 | struct pf_poolhashkey key;
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| 396 | struct pf_addr counter;
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| 397 | int tblidx;
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| 398 | u_int16_t proxy_port[2];
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| 399 | u_int8_t port_op; |
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| 400 | u_int8_t opts; |
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| 401 | }; |
||
| 402 | |||
| 403 | |||
| 404 | /* A packed Operating System description for fingerprinting */
|
||
| 405 | typedef u_int32_t pf_osfp_t;
|
||
| 406 | #define PF_OSFP_ANY ((pf_osfp_t)0) |
||
| 407 | #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) |
||
| 408 | #define PF_OSFP_NOMATCH ((pf_osfp_t)-2) |
||
| 409 | |||
| 410 | struct pf_osfp_entry {
|
||
| 411 | SLIST_ENTRY(pf_osfp_entry) fp_entry; |
||
| 412 | pf_osfp_t fp_os; |
||
| 413 | int fp_enflags;
|
||
| 414 | #define PF_OSFP_EXPANDED 0x001 /* expanded entry */ |
||
| 415 | #define PF_OSFP_GENERIC 0x002 /* generic signature */ |
||
| 416 | #define PF_OSFP_NODETAIL 0x004 /* no p0f details */ |
||
| 417 | #define PF_OSFP_LEN 32 |
||
| 418 | char fp_class_nm[PF_OSFP_LEN];
|
||
| 419 | char fp_version_nm[PF_OSFP_LEN];
|
||
| 420 | char fp_subtype_nm[PF_OSFP_LEN];
|
||
| 421 | }; |
||
| 422 | #define PF_OSFP_ENTRY_EQ(a, b) \
|
||
| 423 | ((a)->fp_os == (b)->fp_os && \ |
||
| 424 | memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \
|
||
| 425 | memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \
|
||
| 426 | memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0)
|
||
| 427 | |||
| 428 | /* handle pf_osfp_t packing */
|
||
| 429 | #define _FP_RESERVED_BIT 1 /* For the special negative #defines */ |
||
| 430 | #define _FP_UNUSED_BITS 1 |
||
| 431 | #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ |
||
| 432 | #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ |
||
| 433 | #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ |
||
| 434 | #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ |
||
| 435 | (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ |
||
| 436 | ((1 << _FP_CLASS_BITS) - 1); \ |
||
| 437 | (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ |
||
| 438 | ((1 << _FP_VERSION_BITS) - 1);\ |
||
| 439 | (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ |
||
| 440 | } while(0) |
||
| 441 | #define PF_OSFP_PACK(osfp, class, version, subtype) do { \ |
||
| 442 | (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ |
||
| 443 | + _FP_SUBTYPE_BITS); \ |
||
| 444 | (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ |
||
| 445 | _FP_SUBTYPE_BITS; \ |
||
| 446 | (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ |
||
| 447 | } while(0) |
||
| 448 | |||
| 449 | /* the fingerprint of an OSes TCP SYN packet */
|
||
| 450 | typedef u_int64_t pf_tcpopts_t;
|
||
| 451 | struct pf_os_fingerprint {
|
||
| 452 | SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */
|
||
| 453 | pf_tcpopts_t fp_tcpopts; /* packed TCP options */
|
||
| 454 | u_int16_t fp_wsize; /* TCP window size */
|
||
| 455 | u_int16_t fp_psize; /* ip->ip_len */
|
||
| 456 | u_int16_t fp_mss; /* TCP MSS */
|
||
| 457 | u_int16_t fp_flags; |
||
| 458 | #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ |
||
| 459 | #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ |
||
| 460 | #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ |
||
| 461 | #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ |
||
| 462 | #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ |
||
| 463 | #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ |
||
| 464 | #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ |
||
| 465 | #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ |
||
| 466 | #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ |
||
| 467 | #define PF_OSFP_MSS 0x0200 /* TCP MSS */ |
||
| 468 | #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ |
||
| 469 | #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ |
||
| 470 | #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ |
||
| 471 | #define PF_OSFP_TS0 0x2000 /* Zero timestamp */ |
||
| 472 | #define PF_OSFP_INET6 0x4000 /* IPv6 */ |
||
| 473 | u_int8_t fp_optcnt; /* TCP option count */
|
||
| 474 | u_int8_t fp_wscale; /* TCP window scaling */
|
||
| 475 | u_int8_t fp_ttl; /* IPv4 TTL */
|
||
| 476 | #define PF_OSFP_MAXTTL_OFFSET 40 |
||
| 477 | /* TCP options packing */
|
||
| 478 | #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ |
||
| 479 | #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ |
||
| 480 | #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ |
||
| 481 | #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ |
||
| 482 | #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ |
||
| 483 | #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ |
||
| 484 | #define PF_OSFP_MAX_OPTS \
|
||
| 485 | (sizeof(((struct pf_os_fingerprint *)0)->fp_tcpopts) * 8) \ |
||
| 486 | / PF_OSFP_TCPOPT_BITS |
||
| 487 | |||
| 488 | SLIST_ENTRY(pf_os_fingerprint) fp_next; |
||
| 489 | }; |
||
| 490 | |||
| 491 | struct pf_osfp_ioctl {
|
||
| 492 | struct pf_osfp_entry fp_os;
|
||
| 493 | pf_tcpopts_t fp_tcpopts; /* packed TCP options */
|
||
| 494 | u_int16_t fp_wsize; /* TCP window size */
|
||
| 495 | u_int16_t fp_psize; /* ip->ip_len */
|
||
| 496 | u_int16_t fp_mss; /* TCP MSS */
|
||
| 497 | u_int16_t fp_flags; |
||
| 498 | u_int8_t fp_optcnt; /* TCP option count */
|
||
| 499 | u_int8_t fp_wscale; /* TCP window scaling */
|
||
| 500 | u_int8_t fp_ttl; /* IPv4 TTL */
|
||
| 501 | |||
| 502 | int fp_getnum; /* DIOCOSFPGET number */ |
||
| 503 | }; |
||
| 504 | |||
| 505 | |||
| 506 | union pf_rule_ptr {
|
||
| 507 | struct pf_rule *ptr;
|
||
| 508 | u_int32_t nr; |
||
| 509 | }; |
||
| 510 | |||
| 511 | #define PF_ANCHOR_NAME_SIZE 64 |
||
| 512 | |||
| 513 | struct pf_rule {
|
||
| 514 | struct pf_rule_addr src;
|
||
| 515 | struct pf_rule_addr dst;
|
||
| 516 | #define PF_SKIP_IFP 0 |
||
| 517 | #define PF_SKIP_DIR 1 |
||
| 518 | #define PF_SKIP_AF 2 |
||
| 519 | #define PF_SKIP_PROTO 3 |
||
| 520 | #define PF_SKIP_SRC_ADDR 4 |
||
| 521 | #define PF_SKIP_SRC_PORT 5 |
||
| 522 | #define PF_SKIP_DST_ADDR 6 |
||
| 523 | #define PF_SKIP_DST_PORT 7 |
||
| 524 | #define PF_SKIP_COUNT 8 |
||
| 525 | union pf_rule_ptr skip[PF_SKIP_COUNT];
|
||
| 526 | #define PF_RULE_LABEL_SIZE 64 |
||
| 527 | char label[PF_RULE_LABEL_SIZE];
|
||
| 528 | #define PF_QNAME_SIZE 64 |
||
| 529 | char ifname[IFNAMSIZ];
|
||
| 530 | char qname[PF_QNAME_SIZE];
|
||
| 531 | char pqname[PF_QNAME_SIZE];
|
||
| 532 | #define PF_TAG_NAME_SIZE 64 |
||
| 533 | char tagname[PF_TAG_NAME_SIZE];
|
||
| 534 | char match_tagname[PF_TAG_NAME_SIZE];
|
||
| 535 | |||
| 536 | char overload_tblname[PF_TABLE_NAME_SIZE];
|
||
| 537 | |||
| 538 | TAILQ_ENTRY(pf_rule) entries; |
||
| 539 | struct pf_pool rpool;
|
||
| 540 | |||
| 541 | u_int64_t evaluations; |
||
| 542 | u_int64_t packets[2];
|
||
| 543 | u_int64_t bytes[2];
|
||
| 544 | |||
| 545 | struct pfi_kif *kif;
|
||
| 546 | struct pf_anchor *anchor;
|
||
| 547 | struct pfr_ktable *overload_tbl;
|
||
| 548 | |||
| 549 | pf_osfp_t os_fingerprint; |
||
| 550 | |||
| 551 | int rtableid;
|
||
| 552 | u_int32_t timeout[PFTM_MAX]; |
||
| 553 | u_int32_t states; |
||
| 554 | u_int32_t max_states; |
||
| 555 | u_int32_t src_nodes; |
||
| 556 | u_int32_t max_src_nodes; |
||
| 557 | u_int32_t max_src_states; |
||
| 558 | u_int32_t max_src_conn; |
||
| 559 | struct {
|
||
| 560 | u_int32_t limit; |
||
| 561 | u_int32_t seconds; |
||
| 562 | } max_src_conn_rate; |
||
| 563 | u_int32_t qid; |
||
| 564 | u_int32_t pqid; |
||
| 565 | u_int32_t rt_listid; |
||
| 566 | u_int32_t nr; |
||
| 567 | u_int32_t prob; |
||
| 568 | uid_t cuid; |
||
| 569 | pid_t cpid; |
||
| 570 | |||
| 571 | u_int16_t return_icmp; |
||
| 572 | u_int16_t return_icmp6; |
||
| 573 | u_int16_t max_mss; |
||
| 574 | u_int16_t tag; |
||
| 575 | u_int16_t match_tag; |
||
| 576 | |||
| 577 | struct pf_rule_uid uid;
|
||
| 578 | struct pf_rule_gid gid;
|
||
| 579 | |||
| 580 | u_int32_t rule_flag; |
||
| 581 | u_int8_t action; |
||
| 582 | u_int8_t direction; |
||
| 583 | u_int8_t log; |
||
| 584 | u_int8_t logif; |
||
| 585 | u_int8_t quick; |
||
| 586 | u_int8_t ifnot; |
||
| 587 | u_int8_t match_tag_not; |
||
| 588 | u_int8_t natpass; |
||
| 589 | |||
| 590 | #define PF_STATE_NORMAL 0x1 |
||
| 591 | #define PF_STATE_MODULATE 0x2 |
||
| 592 | #define PF_STATE_SYNPROXY 0x3 |
||
| 593 | u_int8_t keep_state; |
||
| 594 | sa_family_t af; |
||
| 595 | u_int8_t proto; |
||
| 596 | u_int8_t type; |
||
| 597 | u_int8_t code; |
||
| 598 | u_int8_t flags; |
||
| 599 | u_int8_t flagset; |
||
| 600 | u_int8_t min_ttl; |
||
| 601 | u_int8_t allow_opts; |
||
| 602 | u_int8_t rt; |
||
| 603 | u_int8_t return_ttl; |
||
| 604 | u_int8_t tos; |
||
| 605 | u_int8_t anchor_relative; |
||
| 606 | u_int8_t anchor_wildcard; |
||
| 607 | |||
| 608 | #define PF_FLUSH 0x01 |
||
| 609 | #define PF_FLUSH_GLOBAL 0x02 |
||
| 610 | u_int8_t flush; |
||
| 611 | }; |
||
| 612 | |||
| 613 | /* rule flags */
|
||
| 614 | #define PFRULE_DROP 0x0000 |
||
| 615 | #define PFRULE_RETURNRST 0x0001 |
||
| 616 | #define PFRULE_FRAGMENT 0x0002 |
||
| 617 | #define PFRULE_RETURNICMP 0x0004 |
||
| 618 | #define PFRULE_RETURN 0x0008 |
||
| 619 | #define PFRULE_NOSYNC 0x0010 |
||
| 620 | #define PFRULE_SRCTRACK 0x0020 /* track source states */ |
||
| 621 | #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ |
||
| 622 | |||
| 623 | /* scrub flags */
|
||
| 624 | #define PFRULE_NODF 0x0100 |
||
| 625 | #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ |
||
| 626 | #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ |
||
| 627 | #define PFRULE_RANDOMID 0x0800 |
||
| 628 | #define PFRULE_REASSEMBLE_TCP 0x1000 |
||
| 629 | |||
| 630 | /* rule flags again */
|
||
| 631 | #define PFRULE_IFBOUND 0x00010000 /* if-bound */ |
||
| 632 | |||
| 633 | #define PFSTATE_HIWAT 10000 /* default state table size */ |
||
| 634 | #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ |
||
| 635 | #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ |
||
| 636 | |||
| 637 | |||
| 638 | struct pf_threshold {
|
||
| 639 | u_int32_t limit; |
||
| 640 | #define PF_THRESHOLD_MULT 1000 |
||
| 641 | #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT |
||
| 642 | u_int32_t seconds; |
||
| 643 | u_int32_t count; |
||
| 644 | u_int32_t last; |
||
| 645 | }; |
||
| 646 | |||
| 647 | struct pf_src_node {
|
||
| 648 | RB_ENTRY(pf_src_node) entry; |
||
| 649 | struct pf_addr addr;
|
||
| 650 | struct pf_addr raddr;
|
||
| 651 | union pf_rule_ptr rule;
|
||
| 652 | struct pfi_kif *kif;
|
||
| 653 | u_int64_t bytes[2];
|
||
| 654 | u_int64_t packets[2];
|
||
| 655 | u_int32_t states; |
||
| 656 | u_int32_t conn; |
||
| 657 | struct pf_threshold conn_rate;
|
||
| 658 | u_int32_t creation; |
||
| 659 | u_int32_t expire; |
||
| 660 | sa_family_t af; |
||
| 661 | u_int8_t ruletype; |
||
| 662 | }; |
||
| 663 | |||
| 664 | #define PFSNODE_HIWAT 10000 /* default source node table size */ |
||
| 665 | |||
| 666 | struct pf_state_scrub {
|
||
| 667 | struct timeval pfss_last; /* time received last packet */ |
||
| 668 | u_int32_t pfss_tsecr; /* last echoed timestamp */
|
||
| 669 | u_int32_t pfss_tsval; /* largest timestamp */
|
||
| 670 | u_int32_t pfss_tsval0; /* original timestamp */
|
||
| 671 | u_int16_t pfss_flags; |
||
| 672 | #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ |
||
| 673 | #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ |
||
| 674 | #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ |
||
| 675 | #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ |
||
| 676 | #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ |
||
| 677 | u_int8_t pfss_ttl; /* stashed TTL */
|
||
| 678 | u_int8_t pad; |
||
| 679 | u_int32_t pfss_ts_mod; /* timestamp modulation */
|
||
| 680 | }; |
||
| 681 | |||
| 682 | struct pf_state_host {
|
||
| 683 | struct pf_addr addr;
|
||
| 684 | u_int16_t port; |
||
| 685 | u_int16_t pad; |
||
| 686 | }; |
||
| 687 | |||
| 688 | struct pf_state_peer {
|
||
| 689 | u_int32_t seqlo; /* Max sequence number sent */
|
||
| 690 | u_int32_t seqhi; /* Max the other end ACKd + win */
|
||
| 691 | u_int32_t seqdiff; /* Sequence number modulator */
|
||
| 692 | u_int16_t max_win; /* largest window (pre scaling) */
|
||
| 693 | u_int8_t state; /* active state level */
|
||
| 694 | u_int8_t wscale; /* window scaling factor */
|
||
| 695 | u_int16_t mss; /* Maximum segment size option */
|
||
| 696 | u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */
|
||
| 697 | struct pf_state_scrub *scrub; /* state is scrubbed */ |
||
| 698 | u_int8_t pad[3];
|
||
| 699 | }; |
||
| 700 | |||
| 701 | TAILQ_HEAD(pf_state_queue, pf_state); |
||
| 702 | |||
| 703 | /* keep synced with struct pf_state_key, used in RB_FIND */
|
||
| 704 | struct pf_state_key_cmp {
|
||
| 705 | struct pf_state_host lan;
|
||
| 706 | struct pf_state_host gwy;
|
||
| 707 | struct pf_state_host ext;
|
||
| 708 | sa_family_t af; |
||
| 709 | u_int8_t proto; |
||
| 710 | u_int8_t direction; |
||
| 711 | u_int8_t pad; |
||
| 712 | }; |
||
| 713 | |||
| 714 | TAILQ_HEAD(pf_statelist, pf_state); |
||
| 715 | |||
| 716 | struct pf_state_key {
|
||
| 717 | struct pf_state_host lan;
|
||
| 718 | struct pf_state_host gwy;
|
||
| 719 | struct pf_state_host ext;
|
||
| 720 | sa_family_t af; |
||
| 721 | u_int8_t proto; |
||
| 722 | u_int8_t direction; |
||
| 723 | u_int8_t pad; |
||
| 724 | |||
| 725 | RB_ENTRY(pf_state_key) entry_lan_ext; |
||
| 726 | RB_ENTRY(pf_state_key) entry_ext_gwy; |
||
| 727 | struct pf_statelist states;
|
||
| 728 | u_short refcnt; /* same size as if_index */
|
||
| 729 | }; |
||
| 730 | |||
| 731 | |||
| 732 | /* keep synced with struct pf_state, used in RB_FIND */
|
||
| 733 | struct pf_state_cmp {
|
||
| 734 | u_int64_t id; |
||
| 735 | u_int32_t creatorid; |
||
| 736 | u_int32_t pad; |
||
| 737 | }; |
||
| 738 | |||
| 739 | struct pf_state {
|
||
| 740 | u_int64_t id; |
||
| 741 | u_int32_t creatorid; |
||
| 742 | u_int32_t pad; |
||
| 743 | |||
| 744 | TAILQ_ENTRY(pf_state) entry_list; |
||
| 745 | TAILQ_ENTRY(pf_state) next; |
||
| 746 | RB_ENTRY(pf_state) entry_id; |
||
| 747 | struct pf_state_peer src;
|
||
| 748 | struct pf_state_peer dst;
|
||
| 749 | union pf_rule_ptr rule;
|
||
| 750 | union pf_rule_ptr anchor;
|
||
| 751 | union pf_rule_ptr nat_rule;
|
||
| 752 | struct pf_addr rt_addr;
|
||
| 753 | struct pf_state_key *state_key;
|
||
| 754 | struct pfi_kif *kif;
|
||
| 755 | struct pfi_kif *rt_kif;
|
||
| 756 | struct pf_src_node *src_node;
|
||
| 757 | struct pf_src_node *nat_src_node;
|
||
| 758 | u_int64_t packets[2];
|
||
| 759 | u_int64_t bytes[2];
|
||
| 760 | u_int32_t creation; |
||
| 761 | u_int32_t expire; |
||
| 762 | u_int32_t pfsync_time; |
||
| 763 | u_int16_t tag; |
||
| 764 | u_int8_t log; |
||
| 765 | u_int8_t allow_opts; |
||
| 766 | u_int8_t timeout; |
||
| 767 | u_int8_t sync_flags; |
||
| 768 | #define PFSTATE_NOSYNC 0x01 |
||
| 769 | #define PFSTATE_FROMSYNC 0x02 |
||
| 770 | #define PFSTATE_STALE 0x04 |
||
| 771 | }; |
||
| 772 | |||
| 773 | /*
|
||
| 774 | * Unified state structures for pulling states out of the kernel
|
||
| 775 | * used by pfsync(4) and the pf(4) ioctl.
|
||
| 776 | */
|
||
| 777 | struct pfsync_state_scrub {
|
||
| 778 | u_int16_t pfss_flags; |
||
| 779 | u_int8_t pfss_ttl; /* stashed TTL */
|
||
| 780 | #define PFSYNC_SCRUB_FLAG_VALID 0x01 |
||
| 781 | u_int8_t scrub_flag; |
||
| 782 | u_int32_t pfss_ts_mod; /* timestamp modulation */
|
||
| 783 | } __packed; |
||
| 784 | |||
| 785 | struct pfsync_state_host {
|
||
| 786 | struct pf_addr addr;
|
||
| 787 | u_int16_t port; |
||
| 788 | u_int16_t pad[3];
|
||
| 789 | } __packed; |
||
| 790 | |||
| 791 | struct pfsync_state_peer {
|
||
| 792 | struct pfsync_state_scrub scrub; /* state is scrubbed */ |
||
| 793 | u_int32_t seqlo; /* Max sequence number sent */
|
||
| 794 | u_int32_t seqhi; /* Max the other end ACKd + win */
|
||
| 795 | u_int32_t seqdiff; /* Sequence number modulator */
|
||
| 796 | u_int16_t max_win; /* largest window (pre scaling) */
|
||
| 797 | u_int16_t mss; /* Maximum segment size option */
|
||
| 798 | u_int8_t state; /* active state level */
|
||
| 799 | u_int8_t wscale; /* window scaling factor */
|
||
| 800 | u_int8_t pad[6];
|
||
| 801 | } __packed; |
||
| 802 | |||
| 803 | struct pfsync_state {
|
||
| 804 | u_int32_t id[2];
|
||
| 805 | char ifname[IFNAMSIZ];
|
||
| 806 | struct pfsync_state_host lan;
|
||
| 807 | struct pfsync_state_host gwy;
|
||
| 808 | struct pfsync_state_host ext;
|
||
| 809 | struct pfsync_state_peer src;
|
||
| 810 | struct pfsync_state_peer dst;
|
||
| 811 | struct pf_addr rt_addr;
|
||
| 812 | u_int32_t rule; |
||
| 813 | u_int32_t anchor; |
||
| 814 | u_int32_t nat_rule; |
||
| 815 | u_int32_t creation; |
||
| 816 | u_int32_t expire; |
||
| 817 | u_int32_t packets[2][2]; |
||
| 818 | u_int32_t bytes[2][2]; |
||
| 819 | u_int32_t creatorid; |
||
| 820 | sa_family_t af; |
||
| 821 | u_int8_t proto; |
||
| 822 | u_int8_t direction; |
||
| 823 | u_int8_t log; |
||
| 824 | u_int8_t allow_opts; |
||
| 825 | u_int8_t timeout; |
||
| 826 | u_int8_t sync_flags; |
||
| 827 | u_int8_t updates; |
||
| 828 | } __packed; |
||
| 829 | |||
| 830 | #define PFSYNC_FLAG_COMPRESS 0x01 |
||
| 831 | #define PFSYNC_FLAG_STALE 0x02 |
||
| 832 | #define PFSYNC_FLAG_SRCNODE 0x04 |
||
| 833 | #define PFSYNC_FLAG_NATSRCNODE 0x08 |
||
| 834 | |||
| 835 | /* for copies to/from userland via pf_ioctl() */
|
||
| 836 | #define pf_state_peer_to_pfsync(s,d) do { \ |
||
| 837 | (d)->seqlo = (s)->seqlo; \ |
||
| 838 | (d)->seqhi = (s)->seqhi; \ |
||
| 839 | (d)->seqdiff = (s)->seqdiff; \ |
||
| 840 | (d)->max_win = (s)->max_win; \ |
||
| 841 | (d)->mss = (s)->mss; \ |
||
| 842 | (d)->state = (s)->state; \ |
||
| 843 | (d)->wscale = (s)->wscale; \ |
||
| 844 | if ((s)->scrub) { \
|
||
| 845 | (d)->scrub.pfss_flags = \ |
||
| 846 | (s)->scrub->pfss_flags & PFSS_TIMESTAMP; \ |
||
| 847 | (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ |
||
| 848 | (d)->scrub.pfss_ts_mod = (s)->scrub->pfss_ts_mod; \ |
||
| 849 | (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ |
||
| 850 | } \ |
||
| 851 | } while (0) |
||
| 852 | |||
| 853 | #define pf_state_peer_from_pfsync(s,d) do { \ |
||
| 854 | (d)->seqlo = (s)->seqlo; \ |
||
| 855 | (d)->seqhi = (s)->seqhi; \ |
||
| 856 | (d)->seqdiff = (s)->seqdiff; \ |
||
| 857 | (d)->max_win = (s)->max_win; \ |
||
| 858 | (d)->mss = ntohs((s)->mss); \ |
||
| 859 | (d)->state = (s)->state; \ |
||
| 860 | (d)->wscale = (s)->wscale; \ |
||
| 861 | if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \
|
||
| 862 | (d)->scrub != NULL) { \
|
||
| 863 | (d)->scrub->pfss_flags = \ |
||
| 864 | ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ |
||
| 865 | (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ |
||
| 866 | (d)->scrub->pfss_ts_mod = (s)->scrub.pfss_ts_mod; \ |
||
| 867 | } \ |
||
| 868 | } while (0) |
||
| 869 | |||
| 870 | #define pf_state_counter_to_pfsync(s,d) do { \ |
||
| 871 | d[0] = (s>>32)&0xffffffff; \ |
||
| 872 | d[1] = s&0xffffffff; \ |
||
| 873 | } while (0) |
||
| 874 | |||
| 875 | #define pf_state_counter_from_pfsync(s) \
|
||
| 876 | (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) |
||
| 877 | |||
| 878 | |||
| 879 | |||
| 880 | TAILQ_HEAD(pf_rulequeue, pf_rule); |
||
| 881 | |||
| 882 | struct pf_anchor;
|
||
| 883 | |||
| 884 | struct pf_ruleset {
|
||
| 885 | struct {
|
||
| 886 | struct pf_rulequeue queues[2]; |
||
| 887 | struct {
|
||
| 888 | struct pf_rulequeue *ptr;
|
||
| 889 | struct pf_rule **ptr_array;
|
||
| 890 | u_int32_t rcount; |
||
| 891 | u_int32_t ticket; |
||
| 892 | int open;
|
||
| 893 | } active, inactive; |
||
| 894 | } rules[PF_RULESET_MAX]; |
||
| 895 | struct pf_anchor *anchor;
|
||
| 896 | u_int32_t tticket; |
||
| 897 | int tables;
|
||
| 898 | int topen;
|
||
| 899 | }; |
||
| 900 | |||
| 901 | RB_HEAD(pf_anchor_global, pf_anchor); |
||
| 902 | RB_HEAD(pf_anchor_node, pf_anchor); |
||
| 903 | struct pf_anchor {
|
||
| 904 | RB_ENTRY(pf_anchor) entry_global; |
||
| 905 | RB_ENTRY(pf_anchor) entry_node; |
||
| 906 | struct pf_anchor *parent;
|
||
| 907 | struct pf_anchor_node children;
|
||
| 908 | char name[PF_ANCHOR_NAME_SIZE];
|
||
| 909 | char path[MAXPATHLEN];
|
||
| 910 | struct pf_ruleset ruleset;
|
||
| 911 | int refcnt; /* anchor rules */ |
||
| 912 | int match;
|
||
| 913 | }; |
||
| 914 | RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); |
||
| 915 | RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); |
||
| 916 | |||
| 917 | #define PF_RESERVED_ANCHOR "_pf" |
||
| 918 | |||
| 919 | #define PFR_TFLAG_PERSIST 0x00000001 |
||
| 920 | #define PFR_TFLAG_CONST 0x00000002 |
||
| 921 | #define PFR_TFLAG_ACTIVE 0x00000004 |
||
| 922 | #define PFR_TFLAG_INACTIVE 0x00000008 |
||
| 923 | #define PFR_TFLAG_REFERENCED 0x00000010 |
||
| 924 | #define PFR_TFLAG_REFDANCHOR 0x00000020 |
||
| 925 | #define PFR_TFLAG_USRMASK 0x00000003 |
||
| 926 | #define PFR_TFLAG_SETMASK 0x0000003C |
||
| 927 | #define PFR_TFLAG_ALLMASK 0x0000003F |
||
| 928 | |||
| 929 | struct pfr_table {
|
||
| 930 | char pfrt_anchor[MAXPATHLEN];
|
||
| 931 | char pfrt_name[PF_TABLE_NAME_SIZE];
|
||
| 932 | u_int32_t pfrt_flags; |
||
| 933 | u_int8_t pfrt_fback; |
||
| 934 | }; |
||
| 935 | |||
| 936 | enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED,
|
||
| 937 | PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, |
||
| 938 | PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; |
||
| 939 | |||
| 940 | struct pfr_addr {
|
||
| 941 | union {
|
||
| 942 | struct in_addr _pfra_ip4addr;
|
||
| 943 | struct in6_addr _pfra_ip6addr;
|
||
| 944 | } pfra_u; |
||
| 945 | u_int8_t pfra_af; |
||
| 946 | u_int8_t pfra_net; |
||
| 947 | u_int8_t pfra_not; |
||
| 948 | u_int8_t pfra_fback; |
||
| 949 | }; |
||
| 950 | #define pfra_ip4addr pfra_u._pfra_ip4addr
|
||
| 951 | #define pfra_ip6addr pfra_u._pfra_ip6addr
|
||
| 952 | |||
| 953 | enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX };
|
||
| 954 | enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX };
|
||
| 955 | #define PFR_OP_XPASS PFR_OP_ADDR_MAX
|
||
| 956 | |||
| 957 | struct pfr_astats {
|
||
| 958 | struct pfr_addr pfras_a;
|
||
| 959 | u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; |
||
| 960 | u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; |
||
| 961 | long pfras_tzero;
|
||
| 962 | }; |
||
| 963 | |||
| 964 | enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX };
|
||
| 965 | |||
| 966 | struct pfr_tstats {
|
||
| 967 | struct pfr_table pfrts_t;
|
||
| 968 | u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; |
||
| 969 | u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; |
||
| 970 | u_int64_t pfrts_match; |
||
| 971 | u_int64_t pfrts_nomatch; |
||
| 972 | long pfrts_tzero;
|
||
| 973 | int pfrts_cnt;
|
||
| 974 | int pfrts_refcnt[PFR_REFCNT_MAX];
|
||
| 975 | }; |
||
| 976 | #define pfrts_name pfrts_t.pfrt_name
|
||
| 977 | #define pfrts_flags pfrts_t.pfrt_flags
|
||
| 978 | |||
| 979 | #ifndef _SOCKADDR_UNION_DEFINED
|
||
| 980 | #define _SOCKADDR_UNION_DEFINED
|
||
| 981 | union sockaddr_union {
|
||
| 982 | struct sockaddr sa;
|
||
| 983 | struct sockaddr_in sin;
|
||
| 984 | struct sockaddr_in6 sin6;
|
||
| 985 | }; |
||
| 986 | #endif /* _SOCKADDR_UNION_DEFINED */ |
||
| 987 | |||
| 988 | SLIST_HEAD(pfr_kentryworkq, pfr_kentry); |
||
| 989 | struct pfr_kentry {
|
||
| 990 | struct radix_node pfrke_node[2]; |
||
| 991 | union sockaddr_union pfrke_sa;
|
||
| 992 | u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; |
||
| 993 | u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; |
||
| 994 | SLIST_ENTRY(pfr_kentry) pfrke_workq; |
||
| 995 | long pfrke_tzero;
|
||
| 996 | u_int8_t pfrke_af; |
||
| 997 | u_int8_t pfrke_net; |
||
| 998 | u_int8_t pfrke_not; |
||
| 999 | u_int8_t pfrke_mark; |
||
| 1000 | u_int8_t pfrke_intrpool; |
||
| 1001 | }; |
||
| 1002 | |||
| 1003 | SLIST_HEAD(pfr_ktableworkq, pfr_ktable); |
||
| 1004 | RB_HEAD(pfr_ktablehead, pfr_ktable); |
||
| 1005 | struct pfr_ktable {
|
||
| 1006 | struct pfr_tstats pfrkt_ts;
|
||
| 1007 | RB_ENTRY(pfr_ktable) pfrkt_tree; |
||
| 1008 | SLIST_ENTRY(pfr_ktable) pfrkt_workq; |
||
| 1009 | struct radix_node_head *pfrkt_ip4;
|
||
| 1010 | struct radix_node_head *pfrkt_ip6;
|
||
| 1011 | struct pfr_ktable *pfrkt_shadow;
|
||
| 1012 | struct pfr_ktable *pfrkt_root;
|
||
| 1013 | struct pf_ruleset *pfrkt_rs;
|
||
| 1014 | long pfrkt_larg;
|
||
| 1015 | int pfrkt_nflags;
|
||
| 1016 | }; |
||
| 1017 | #define pfrkt_t pfrkt_ts.pfrts_t
|
||
| 1018 | #define pfrkt_name pfrkt_t.pfrt_name
|
||
| 1019 | #define pfrkt_anchor pfrkt_t.pfrt_anchor
|
||
| 1020 | #define pfrkt_ruleset pfrkt_t.pfrt_ruleset
|
||
| 1021 | #define pfrkt_flags pfrkt_t.pfrt_flags
|
||
| 1022 | #define pfrkt_cnt pfrkt_ts.pfrts_cnt
|
||
| 1023 | #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt
|
||
| 1024 | #define pfrkt_packets pfrkt_ts.pfrts_packets
|
||
| 1025 | #define pfrkt_bytes pfrkt_ts.pfrts_bytes
|
||
| 1026 | #define pfrkt_match pfrkt_ts.pfrts_match
|
||
| 1027 | #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch
|
||
| 1028 | #define pfrkt_tzero pfrkt_ts.pfrts_tzero
|
||
| 1029 | |||
| 1030 | RB_HEAD(pf_state_tree_lan_ext, pf_state_key); |
||
| 1031 | RB_PROTOTYPE(pf_state_tree_lan_ext, pf_state_key, |
||
| 1032 | entry_lan_ext, pf_state_compare_lan_ext); |
||
| 1033 | |||
| 1034 | RB_HEAD(pf_state_tree_ext_gwy, pf_state_key); |
||
| 1035 | RB_PROTOTYPE(pf_state_tree_ext_gwy, pf_state_key, |
||
| 1036 | entry_ext_gwy, pf_state_compare_ext_gwy); |
||
| 1037 | |||
| 1038 | RB_HEAD(pfi_ifhead, pfi_kif); |
||
| 1039 | |||
| 1040 | /* state tables */
|
||
| 1041 | extern struct pf_state_tree_lan_ext pf_statetbl_lan_ext; |
||
| 1042 | extern struct pf_state_tree_ext_gwy pf_statetbl_ext_gwy; |
||
| 1043 | |||
| 1044 | /* keep synced with pfi_kif, used in RB_FIND */
|
||
| 1045 | struct pfi_kif_cmp {
|
||
| 1046 | char pfik_name[IFNAMSIZ];
|
||
| 1047 | }; |
||
| 1048 | |||
| 1049 | struct pfi_kif {
|
||
| 1050 | char pfik_name[IFNAMSIZ];
|
||
| 1051 | RB_ENTRY(pfi_kif) pfik_tree; |
||
| 1052 | u_int64_t pfik_packets[2][2][2]; |
||
| 1053 | u_int64_t pfik_bytes[2][2][2]; |
||
| 1054 | u_int32_t pfik_tzero; |
||
| 1055 | int pfik_flags;
|
||
| 1056 | void *pfik_ah_cookie;
|
||
| 1057 | struct ifnet *pfik_ifp;
|
||
| 1058 | struct ifg_group *pfik_group;
|
||
| 1059 | int pfik_states;
|
||
| 1060 | int pfik_rules;
|
||
| 1061 | TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; |
||
| 1062 | }; |
||
| 1063 | |||
| 1064 | enum pfi_kif_refs {
|
||
| 1065 | PFI_KIF_REF_NONE, |
||
| 1066 | PFI_KIF_REF_STATE, |
||
| 1067 | PFI_KIF_REF_RULE |
||
| 1068 | }; |
||
| 1069 | |||
| 1070 | #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ |
||
| 1071 | |||
| 1072 | struct pf_pdesc {
|
||
| 1073 | struct {
|
||
| 1074 | int done;
|
||
| 1075 | uid_t uid; |
||
| 1076 | gid_t gid; |
||
| 1077 | pid_t pid; |
||
| 1078 | } lookup; |
||
| 1079 | u_int64_t tot_len; /* Make Mickey money */
|
||
| 1080 | union {
|
||
| 1081 | struct tcphdr *tcp;
|
||
| 1082 | struct udphdr *udp;
|
||
| 1083 | struct icmp *icmp;
|
||
| 1084 | #ifdef INET6
|
||
| 1085 | struct icmp6_hdr *icmp6;
|
||
| 1086 | #endif /* INET6 */ |
||
| 1087 | void *any;
|
||
| 1088 | } hdr; |
||
| 1089 | struct pf_addr baddr; /* address before translation */ |
||
| 1090 | struct pf_addr naddr; /* address after translation */ |
||
| 1091 | struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ |
||
| 1092 | struct pf_addr *src;
|
||
| 1093 | struct pf_addr *dst;
|
||
| 1094 | struct ether_header
|
||
| 1095 | *eh; |
||
| 1096 | u_int16_t *ip_sum; |
||
| 1097 | u_int32_t p_len; /* total length of payload */
|
||
| 1098 | u_int16_t flags; /* Let SCRUB trigger behavior in
|
||
| 1099 | * state code. Easier than tags */
|
||
| 1100 | #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ |
||
| 1101 | #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ |
||
| 1102 | sa_family_t af; |
||
| 1103 | u_int8_t proto; |
||
| 1104 | u_int8_t tos; |
||
| 1105 | }; |
||
| 1106 | |||
| 1107 | /* flags for RDR options */
|
||
| 1108 | #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ |
||
| 1109 | #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ |
||
| 1110 | |||
| 1111 | /* Reasons code for passing/dropping a packet */
|
||
| 1112 | #define PFRES_MATCH 0 /* Explicit match of a rule */ |
||
| 1113 | #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ |
||
| 1114 | #define PFRES_FRAG 2 /* Dropping following fragment */ |
||
| 1115 | #define PFRES_SHORT 3 /* Dropping short packet */ |
||
| 1116 | #define PFRES_NORM 4 /* Dropping by normalizer */ |
||
| 1117 | #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ |
||
| 1118 | #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ |
||
| 1119 | #define PFRES_CONGEST 7 /* Congestion (of IP queue) */ |
||
| 1120 | #define PFRES_IPOPTIONS 8 /* IP option */ |
||
| 1121 | #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ |
||
| 1122 | #define PFRES_BADSTATE 10 /* State mismatch */ |
||
| 1123 | #define PFRES_STATEINS 11 /* State insertion failure */ |
||
| 1124 | #define PFRES_MAXSTATES 12 /* State limit */ |
||
| 1125 | #define PFRES_SRCLIMIT 13 /* Source node/conn limit */ |
||
| 1126 | #define PFRES_SYNPROXY 14 /* SYN proxy */ |
||
| 1127 | #define PFRES_STATELOCKED 15 /* state table locked */ |
||
| 1128 | #define PFRES_MAX 16 /* total+1 */ |
||
| 1129 | |||
| 1130 | #define PFRES_NAMES { \
|
||
| 1131 | "match", \
|
||
| 1132 | "bad-offset", \
|
||
| 1133 | "fragment", \
|
||
| 1134 | "short", \
|
||
| 1135 | "normalize", \
|
||
| 1136 | "memory", \
|
||
| 1137 | "bad-timestamp", \
|
||
| 1138 | "congestion", \
|
||
| 1139 | "ip-option", \
|
||
| 1140 | "proto-cksum", \
|
||
| 1141 | "state-mismatch", \
|
||
| 1142 | "state-insert", \
|
||
| 1143 | "state-limit", \
|
||
| 1144 | "src-limit", \
|
||
| 1145 | "synproxy", \
|
||
| 1146 | "state-locked", \
|
||
| 1147 | NULL \
|
||
| 1148 | } |
||
| 1149 | |||
| 1150 | /* Counters for other things we want to keep track of */
|
||
| 1151 | #define LCNT_STATES 0 /* states */ |
||
| 1152 | #define LCNT_SRCSTATES 1 /* max-src-states */ |
||
| 1153 | #define LCNT_SRCNODES 2 /* max-src-nodes */ |
||
| 1154 | #define LCNT_SRCCONN 3 /* max-src-conn */ |
||
| 1155 | #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ |
||
| 1156 | #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ |
||
| 1157 | #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ |
||
| 1158 | #define LCNT_MAX 7 /* total+1 */ |
||
| 1159 | |||
| 1160 | #define LCNT_NAMES { \
|
||
| 1161 | "max states per rule", \
|
||
| 1162 | "max-src-states", \
|
||
| 1163 | "max-src-nodes", \
|
||
| 1164 | "max-src-conn", \
|
||
| 1165 | "max-src-conn-rate", \
|
||
| 1166 | "overload table insertion", \
|
||
| 1167 | "overload flush states", \
|
||
| 1168 | NULL \
|
||
| 1169 | } |
||
| 1170 | |||
| 1171 | /* UDP state enumeration */
|
||
| 1172 | #define PFUDPS_NO_TRAFFIC 0 |
||
| 1173 | #define PFUDPS_SINGLE 1 |
||
| 1174 | #define PFUDPS_MULTIPLE 2 |
||
| 1175 | |||
| 1176 | #define PFUDPS_NSTATES 3 /* number of state levels */ |
||
| 1177 | |||
| 1178 | #define PFUDPS_NAMES { \
|
||
| 1179 | "NO_TRAFFIC", \
|
||
| 1180 | "SINGLE", \
|
||
| 1181 | "MULTIPLE", \
|
||
| 1182 | NULL \
|
||
| 1183 | } |
||
| 1184 | |||
| 1185 | /* Other protocol state enumeration */
|
||
| 1186 | #define PFOTHERS_NO_TRAFFIC 0 |
||
| 1187 | #define PFOTHERS_SINGLE 1 |
||
| 1188 | #define PFOTHERS_MULTIPLE 2 |
||
| 1189 | |||
| 1190 | #define PFOTHERS_NSTATES 3 /* number of state levels */ |
||
| 1191 | |||
| 1192 | #define PFOTHERS_NAMES { \
|
||
| 1193 | "NO_TRAFFIC", \
|
||
| 1194 | "SINGLE", \
|
||
| 1195 | "MULTIPLE", \
|
||
| 1196 | NULL \
|
||
| 1197 | } |
||
| 1198 | |||
| 1199 | #define FCNT_STATE_SEARCH 0 |
||
| 1200 | #define FCNT_STATE_INSERT 1 |
||
| 1201 | #define FCNT_STATE_REMOVALS 2 |
||
| 1202 | #define FCNT_MAX 3 |
||
| 1203 | |||
| 1204 | #define SCNT_SRC_NODE_SEARCH 0 |
||
| 1205 | #define SCNT_SRC_NODE_INSERT 1 |
||
| 1206 | #define SCNT_SRC_NODE_REMOVALS 2 |
||
| 1207 | #define SCNT_MAX 3 |
||
| 1208 | |||
| 1209 | #define ACTION_SET(a, x) \
|
||
| 1210 | do { \
|
||
| 1211 | if ((a) != NULL) \ |
||
| 1212 | *(a) = (x); \ |
||
| 1213 | } while (0) |
||
| 1214 | |||
| 1215 | #define REASON_SET(a, x) \
|
||
| 1216 | do { \
|
||
| 1217 | if ((a) != NULL) \ |
||
| 1218 | *(a) = (x); \ |
||
| 1219 | if (x < PFRES_MAX) \
|
||
| 1220 | pf_status.counters[x]++; \ |
||
| 1221 | } while (0) |
||
| 1222 | #define REASON_SET_NOPTR(a, x) \
|
||
| 1223 | do { \
|
||
| 1224 | *(a) = (x); \ |
||
| 1225 | if (x < PFRES_MAX) \
|
||
| 1226 | pf_status.counters[x]++; \ |
||
| 1227 | } while (0) |
||
| 1228 | |||
| 1229 | struct pf_status {
|
||
| 1230 | u_int64_t counters[PFRES_MAX]; |
||
| 1231 | u_int64_t lcounters[LCNT_MAX]; /* limit counters */
|
||
| 1232 | u_int64_t fcounters[FCNT_MAX]; |
||
| 1233 | u_int64_t scounters[SCNT_MAX]; |
||
| 1234 | u_int64_t pcounters[2][2][3]; |
||
| 1235 | u_int64_t bcounters[2][2]; |
||
| 1236 | u_int64_t stateid; |
||
| 1237 | u_int32_t running; |
||
| 1238 | u_int32_t states; |
||
| 1239 | u_int32_t src_nodes; |
||
| 1240 | u_int32_t since; |
||
| 1241 | u_int32_t debug; |
||
| 1242 | u_int32_t hostid; |
||
| 1243 | char ifname[IFNAMSIZ];
|
||
| 1244 | u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; |
||
| 1245 | }; |
||
| 1246 | |||
| 1247 | struct cbq_opts {
|
||
| 1248 | u_int minburst; |
||
| 1249 | u_int maxburst; |
||
| 1250 | u_int pktsize; |
||
| 1251 | u_int maxpktsize; |
||
| 1252 | u_int ns_per_byte; |
||
| 1253 | u_int maxidle; |
||
| 1254 | int minidle;
|
||
| 1255 | u_int offtime; |
||
| 1256 | int flags;
|
||
| 1257 | }; |
||
| 1258 | |||
| 1259 | struct priq_opts {
|
||
| 1260 | int flags;
|
||
| 1261 | }; |
||
| 1262 | |||
| 1263 | struct hfsc_opts {
|
||
| 1264 | /* real-time service curve */
|
||
| 1265 | u_int rtsc_m1; /* slope of the 1st segment in bps */
|
||
| 1266 | u_int rtsc_d; /* the x-projection of m1 in msec */
|
||
| 1267 | u_int rtsc_m2; /* slope of the 2nd segment in bps */
|
||
| 1268 | /* link-sharing service curve */
|
||
| 1269 | u_int lssc_m1; |
||
| 1270 | u_int lssc_d; |
||
| 1271 | u_int lssc_m2; |
||
| 1272 | /* upper-limit service curve */
|
||
| 1273 | u_int ulsc_m1; |
||
| 1274 | u_int ulsc_d; |
||
| 1275 | u_int ulsc_m2; |
||
| 1276 | int flags;
|
||
| 1277 | }; |
||
| 1278 | |||
| 1279 | struct pf_altq {
|
||
| 1280 | char ifname[IFNAMSIZ];
|
||
| 1281 | |||
| 1282 | void *altq_disc; /* discipline-specific state */ |
||
| 1283 | TAILQ_ENTRY(pf_altq) entries; |
||
| 1284 | |||
| 1285 | /* scheduler spec */
|
||
| 1286 | u_int8_t scheduler; /* scheduler type */
|
||
| 1287 | u_int16_t tbrsize; /* tokenbucket regulator size */
|
||
| 1288 | u_int32_t ifbandwidth; /* interface bandwidth */
|
||
| 1289 | |||
| 1290 | /* queue spec */
|
||
| 1291 | char qname[PF_QNAME_SIZE]; /* queue name */ |
||
| 1292 | char parent[PF_QNAME_SIZE]; /* parent name */ |
||
| 1293 | u_int32_t parent_qid; /* parent queue id */
|
||
| 1294 | u_int32_t bandwidth; /* queue bandwidth */
|
||
| 1295 | u_int8_t priority; /* priority */
|
||
| 1296 | u_int16_t qlimit; /* queue size limit */
|
||
| 1297 | u_int16_t flags; /* misc flags */
|
||
| 1298 | union {
|
||
| 1299 | struct cbq_opts cbq_opts;
|
||
| 1300 | struct priq_opts priq_opts;
|
||
| 1301 | struct hfsc_opts hfsc_opts;
|
||
| 1302 | } pq_u; |
||
| 1303 | |||
| 1304 | u_int32_t qid; /* return value */
|
||
| 1305 | }; |
||
| 1306 | |||
| 1307 | struct pf_tag {
|
||
| 1308 | u_int16_t tag; /* tag id */
|
||
| 1309 | }; |
||
| 1310 | |||
| 1311 | struct pf_tagname {
|
||
| 1312 | TAILQ_ENTRY(pf_tagname) entries; |
||
| 1313 | char name[PF_TAG_NAME_SIZE];
|
||
| 1314 | u_int16_t tag; |
||
| 1315 | int ref;
|
||
| 1316 | }; |
||
| 1317 | |||
| 1318 | #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ |
||
| 1319 | #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ |
||
| 1320 | #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ |
||
| 1321 | #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ |
||
| 1322 | |||
| 1323 | #define PFR_KTABLE_HIWAT 1000 /* Number of tables */ |
||
| 1324 | #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ |
||
| 1325 | #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */ |
||
| 1326 | |||
| 1327 | /*
|
||
| 1328 | * ioctl parameter structures
|
||
| 1329 | */
|
||
| 1330 | |||
| 1331 | struct pfioc_pooladdr {
|
||
| 1332 | u_int32_t action; |
||
| 1333 | u_int32_t ticket; |
||
| 1334 | u_int32_t nr; |
||
| 1335 | u_int32_t r_num; |
||
| 1336 | u_int8_t r_action; |
||
| 1337 | u_int8_t r_last; |
||
| 1338 | u_int8_t af; |
||
| 1339 | char anchor[MAXPATHLEN];
|
||
| 1340 | struct pf_pooladdr addr;
|
||
| 1341 | }; |
||
| 1342 | |||
| 1343 | struct pfioc_rule {
|
||
| 1344 | u_int32_t action; |
||
| 1345 | u_int32_t ticket; |
||
| 1346 | u_int32_t pool_ticket; |
||
| 1347 | u_int32_t nr; |
||
| 1348 | char anchor[MAXPATHLEN];
|
||
| 1349 | char anchor_call[MAXPATHLEN];
|
||
| 1350 | struct pf_rule rule;
|
||
| 1351 | }; |
||
| 1352 | |||
| 1353 | struct pfioc_natlook {
|
||
| 1354 | struct pf_addr saddr;
|
||
| 1355 | struct pf_addr daddr;
|
||
| 1356 | struct pf_addr rsaddr;
|
||
| 1357 | struct pf_addr rdaddr;
|
||
| 1358 | u_int16_t sport; |
||
| 1359 | u_int16_t dport; |
||
| 1360 | u_int16_t rsport; |
||
| 1361 | u_int16_t rdport; |
||
| 1362 | sa_family_t af; |
||
| 1363 | u_int8_t proto; |
||
| 1364 | u_int8_t direction; |
||
| 1365 | }; |
||
| 1366 | |||
| 1367 | struct pfioc_state {
|
||
| 1368 | u_int32_t nr; |
||
| 1369 | void *state;
|
||
| 1370 | }; |
||
| 1371 | |||
| 1372 | struct pfioc_src_node_kill {
|
||
| 1373 | /* XXX returns the number of src nodes killed in psnk_af */
|
||
| 1374 | sa_family_t psnk_af; |
||
| 1375 | struct pf_rule_addr psnk_src;
|
||
| 1376 | struct pf_rule_addr psnk_dst;
|
||
| 1377 | }; |
||
| 1378 | |||
| 1379 | struct pfioc_state_kill {
|
||
| 1380 | /* XXX returns the number of states killed in psk_af */
|
||
| 1381 | sa_family_t psk_af; |
||
| 1382 | int psk_proto;
|
||
| 1383 | struct pf_rule_addr psk_src;
|
||
| 1384 | struct pf_rule_addr psk_dst;
|
||
| 1385 | char psk_ifname[IFNAMSIZ];
|
||
| 1386 | }; |
||
| 1387 | |||
| 1388 | struct pfioc_states {
|
||
| 1389 | int ps_len;
|
||
| 1390 | union {
|
||
| 1391 | void *psu_buf;
|
||
| 1392 | struct pfsync_state *psu_states;
|
||
| 1393 | } ps_u; |
||
| 1394 | #define ps_buf ps_u.psu_buf
|
||
| 1395 | #define ps_states ps_u.psu_states
|
||
| 1396 | }; |
||
| 1397 | |||
| 1398 | struct pfioc_src_nodes {
|
||
| 1399 | int psn_len;
|
||
| 1400 | union {
|
||
| 1401 | void *psu_buf;
|
||
| 1402 | struct pf_src_node *psu_src_nodes;
|
||
| 1403 | } psn_u; |
||
| 1404 | #define psn_buf psn_u.psu_buf
|
||
| 1405 | #define psn_src_nodes psn_u.psu_src_nodes
|
||
| 1406 | }; |
||
| 1407 | |||
| 1408 | struct pfioc_if {
|
||
| 1409 | char ifname[IFNAMSIZ];
|
||
| 1410 | }; |
||
| 1411 | |||
| 1412 | struct pfioc_tm {
|
||
| 1413 | int timeout;
|
||
| 1414 | int seconds;
|
||
| 1415 | }; |
||
| 1416 | |||
| 1417 | struct pfioc_limit {
|
||
| 1418 | int index;
|
||
| 1419 | unsigned limit;
|
||
| 1420 | }; |
||
| 1421 | |||
| 1422 | struct pfioc_altq {
|
||
| 1423 | u_int32_t action; |
||
| 1424 | u_int32_t ticket; |
||
| 1425 | u_int32_t nr; |
||
| 1426 | struct pf_altq altq;
|
||
| 1427 | }; |
||
| 1428 | |||
| 1429 | struct pfioc_qstats {
|
||
| 1430 | u_int32_t ticket; |
||
| 1431 | u_int32_t nr; |
||
| 1432 | void *buf;
|
||
| 1433 | int nbytes;
|
||
| 1434 | u_int8_t scheduler; |
||
| 1435 | }; |
||
| 1436 | |||
| 1437 | struct pfioc_ruleset {
|
||
| 1438 | u_int32_t nr; |
||
| 1439 | char path[MAXPATHLEN];
|
||
| 1440 | char name[PF_ANCHOR_NAME_SIZE];
|
||
| 1441 | }; |
||
| 1442 | |||
| 1443 | #define PF_RULESET_ALTQ (PF_RULESET_MAX)
|
||
| 1444 | #define PF_RULESET_TABLE (PF_RULESET_MAX+1) |
||
| 1445 | struct pfioc_trans {
|
||
| 1446 | int size; /* number of elements */ |
||
| 1447 | int esize; /* size of each element in bytes */ |
||
| 1448 | struct pfioc_trans_e {
|
||
| 1449 | int rs_num;
|
||
| 1450 | char anchor[MAXPATHLEN];
|
||
| 1451 | u_int32_t ticket; |
||
| 1452 | } *array; |
||
| 1453 | }; |
||
| 1454 | |||
| 1455 | #define PFR_FLAG_ATOMIC 0x00000001 |
||
| 1456 | #define PFR_FLAG_DUMMY 0x00000002 |
||
| 1457 | #define PFR_FLAG_FEEDBACK 0x00000004 |
||
| 1458 | #define PFR_FLAG_CLSTATS 0x00000008 |
||
| 1459 | #define PFR_FLAG_ADDRSTOO 0x00000010 |
||
| 1460 | #define PFR_FLAG_REPLACE 0x00000020 |
||
| 1461 | #define PFR_FLAG_ALLRSETS 0x00000040 |
||
| 1462 | #define PFR_FLAG_ALLMASK 0x0000007F |
||
| 1463 | #ifdef _KERNEL
|
||
| 1464 | #define PFR_FLAG_USERIOCTL 0x10000000 |
||
| 1465 | #endif
|
||
| 1466 | |||
| 1467 | struct pfioc_table {
|
||
| 1468 | struct pfr_table pfrio_table;
|
||
| 1469 | void *pfrio_buffer;
|
||
| 1470 | int pfrio_esize;
|
||
| 1471 | int pfrio_size;
|
||
| 1472 | int pfrio_size2;
|
||
| 1473 | int pfrio_nadd;
|
||
| 1474 | int pfrio_ndel;
|
||
| 1475 | int pfrio_nchange;
|
||
| 1476 | int pfrio_flags;
|
||
| 1477 | u_int32_t pfrio_ticket; |
||
| 1478 | }; |
||
| 1479 | #define pfrio_exists pfrio_nadd
|
||
| 1480 | #define pfrio_nzero pfrio_nadd
|
||
| 1481 | #define pfrio_nmatch pfrio_nadd
|
||
| 1482 | #define pfrio_naddr pfrio_size2
|
||
| 1483 | #define pfrio_setflag pfrio_size2
|
||
| 1484 | #define pfrio_clrflag pfrio_nadd
|
||
| 1485 | |||
| 1486 | struct pfioc_iface {
|
||
| 1487 | char pfiio_name[IFNAMSIZ];
|
||
| 1488 | void *pfiio_buffer;
|
||
| 1489 | int pfiio_esize;
|
||
| 1490 | int pfiio_size;
|
||
| 1491 | int pfiio_nzero;
|
||
| 1492 | int pfiio_flags;
|
||
| 1493 | }; |
||
| 1494 | |||
| 1495 | |||
| 1496 | /*
|
||
| 1497 | * ioctl operations
|
||
| 1498 | */
|
||
| 1499 | |||
| 1500 | #define DIOCSTART _IO ('D', 1) |
||
| 1501 | #define DIOCSTOP _IO ('D', 2) |
||
| 1502 | #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) |
||
| 1503 | #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) |
||
| 1504 | #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) |
||
| 1505 | #define DIOCSETLCK _IOWR('D', 8, uint32_t) |
||
| 1506 | /* XXX cut 9 - 17 */
|
||
| 1507 | #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) |
||
| 1508 | #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) |
||
| 1509 | #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) |
||
| 1510 | #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) |
||
| 1511 | #define DIOCCLRSTATUS _IO ('D', 22) |
||
| 1512 | #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) |
||
| 1513 | #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) |
||
| 1514 | #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) |
||
| 1515 | #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) |
||
| 1516 | /* XXX cut 26 - 28 */
|
||
| 1517 | #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) |
||
| 1518 | #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) |
||
| 1519 | #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) |
||
| 1520 | #define DIOCCLRRULECTRS _IO ('D', 38) |
||
| 1521 | #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) |
||
| 1522 | #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) |
||
| 1523 | #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) |
||
| 1524 | #define DIOCSTARTALTQ _IO ('D', 42) |
||
| 1525 | #define DIOCSTOPALTQ _IO ('D', 43) |
||
| 1526 | #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) |
||
| 1527 | #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) |
||
| 1528 | #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) |
||
| 1529 | #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) |
||
| 1530 | #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) |
||
| 1531 | #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) |
||
| 1532 | #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) |
||
| 1533 | #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) |
||
| 1534 | #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) |
||
| 1535 | #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) |
||
| 1536 | #define DIOCADDSTATES _IOWR('D', 56, struct pfioc_states) |
||
| 1537 | /* XXX cut 57 - 57 */
|
||
| 1538 | #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) |
||
| 1539 | #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) |
||
| 1540 | #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) |
||
| 1541 | #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) |
||
| 1542 | #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) |
||
| 1543 | #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) |
||
| 1544 | #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) |
||
| 1545 | #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) |
||
| 1546 | #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) |
||
| 1547 | #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) |
||
| 1548 | #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) |
||
| 1549 | #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) |
||
| 1550 | #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) |
||
| 1551 | #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) |
||
| 1552 | #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) |
||
| 1553 | #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) |
||
| 1554 | #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) |
||
| 1555 | #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) |
||
| 1556 | #define DIOCOSFPFLUSH _IO('D', 78) |
||
| 1557 | #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) |
||
| 1558 | #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) |
||
| 1559 | #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) |
||
| 1560 | #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) |
||
| 1561 | #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) |
||
| 1562 | #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) |
||
| 1563 | #define DIOCCLRSRCNODES _IO('D', 85) |
||
| 1564 | #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) |
||
| 1565 | #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) |
||
| 1566 | #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) |
||
| 1567 | #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) |
||
| 1568 | #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) |
||
| 1569 | |||
| 1570 | #ifdef _KERNEL
|
||
| 1571 | RB_HEAD(pf_src_tree, pf_src_node); |
||
| 1572 | RB_PROTOTYPE(pf_src_tree, pf_src_node, entry, pf_src_compare); |
||
| 1573 | extern struct pf_src_tree tree_src_tracking; |
||
| 1574 | |||
| 1575 | RB_HEAD(pf_state_tree_id, pf_state); |
||
| 1576 | RB_PROTOTYPE(pf_state_tree_id, pf_state, |
||
| 1577 | entry_id, pf_state_compare_id); |
||
| 1578 | extern struct pf_state_tree_id tree_id; |
||
| 1579 | extern struct pf_state_queue state_list; |
||
| 1580 | |||
| 1581 | TAILQ_HEAD(pf_poolqueue, pf_pool); |
||
| 1582 | extern struct pf_poolqueue pf_pools[2]; |
||
| 1583 | TAILQ_HEAD(pf_altqqueue, pf_altq); |
||
| 1584 | extern struct pf_altqqueue pf_altqs[2]; |
||
| 1585 | extern struct pf_palist pf_pabuf; |
||
| 1586 | |||
| 1587 | extern u_int32_t ticket_altqs_active;
|
||
| 1588 | extern u_int32_t ticket_altqs_inactive;
|
||
| 1589 | extern int altqs_inactive_open; |
||
| 1590 | extern u_int32_t ticket_pabuf;
|
||
| 1591 | extern struct pf_altqqueue *pf_altqs_active; |
||
| 1592 | extern struct pf_altqqueue *pf_altqs_inactive; |
||
| 1593 | extern struct pf_poolqueue *pf_pools_active; |
||
| 1594 | extern struct pf_poolqueue *pf_pools_inactive; |
||
| 1595 | extern int pf_tbladdr_setup(struct pf_ruleset *, |
||
| 1596 | struct pf_addr_wrap *);
|
||
| 1597 | extern void pf_tbladdr_remove(struct pf_addr_wrap *); |
||
| 1598 | extern void pf_tbladdr_copyout(struct pf_addr_wrap *); |
||
| 1599 | extern void pf_calc_skip_steps(struct pf_rulequeue *); |
||
| 1600 | extern struct pool pf_src_tree_pl, pf_rule_pl; |
||
| 1601 | extern struct pool pf_state_pl, pf_state_key_pl, pf_altq_pl, |
||
| 1602 | pf_pooladdr_pl; |
||
| 1603 | extern struct pool pf_state_scrub_pl; |
||
| 1604 | extern void pf_purge_thread(void *); |
||
| 1605 | extern void pf_purge_expired_src_nodes(int); |
||
| 1606 | extern void pf_purge_expired_states(u_int32_t); |
||
| 1607 | extern void pf_unlink_state(struct pf_state *); |
||
| 1608 | extern void pf_free_state(struct pf_state *); |
||
| 1609 | extern int pf_insert_state(struct pfi_kif *, |
||
| 1610 | struct pf_state *);
|
||
| 1611 | extern int pf_insert_src_node(struct pf_src_node **, |
||
| 1612 | struct pf_rule *, struct pf_addr *, |
||
| 1613 | sa_family_t); |
||
| 1614 | void pf_src_tree_remove_state(struct pf_state *); |
||
| 1615 | extern struct pf_state *pf_find_state_byid(struct pf_state_cmp *); |
||
| 1616 | extern struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, |
||
| 1617 | u_int8_t, int *);
|
||
| 1618 | extern void pf_print_state(struct pf_state *); |
||
| 1619 | extern void pf_print_flags(u_int8_t); |
||
| 1620 | extern u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t,
|
||
| 1621 | u_int8_t); |
||
| 1622 | |||
| 1623 | extern struct ifnet *sync_ifp; |
||
| 1624 | extern struct pf_rule pf_default_rule; |
||
| 1625 | extern void pf_addrcpy(struct pf_addr *, |
||
| 1626 | const struct pf_addr *, u_int8_t); |
||
| 1627 | void pf_rm_rule(struct pf_rulequeue *, |
||
| 1628 | struct pf_rule *);
|
||
| 1629 | |||
| 1630 | #ifdef INET
|
||
| 1631 | int pf_test(int, struct ifnet *, struct mbuf **, struct ether_header *); |
||
| 1632 | #endif /* INET */ |
||
| 1633 | |||
| 1634 | #ifdef INET6
|
||
| 1635 | int pf_test6(int, struct ifnet *, struct mbuf **, struct ether_header *); |
||
| 1636 | void pf_poolmask(struct pf_addr *, struct pf_addr*, |
||
| 1637 | struct pf_addr *, const struct pf_addr *, u_int8_t); |
||
| 1638 | void pf_addr_inc(struct pf_addr *, sa_family_t); |
||
| 1639 | #endif /* INET6 */ |
||
| 1640 | |||
| 1641 | void *pf_pull_hdr(struct mbuf *, int, void *, int, u_short *, u_short *, |
||
| 1642 | sa_family_t); |
||
| 1643 | void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); |
||
| 1644 | int pflog_packet(struct pfi_kif *, struct mbuf *, sa_family_t, u_int8_t, |
||
| 1645 | u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *, |
||
| 1646 | struct pf_pdesc *);
|
||
| 1647 | int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, |
||
| 1648 | struct pf_addr *, sa_family_t);
|
||
| 1649 | int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t);
|
||
| 1650 | int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t);
|
||
| 1651 | int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t);
|
||
| 1652 | int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t);
|
||
| 1653 | |||
| 1654 | void pf_normalize_init(void); |
||
| 1655 | #ifdef _MODULE
|
||
| 1656 | void pf_normalize_destroy(void); |
||
| 1657 | #endif /* _MODULE */ |
||
| 1658 | int pf_normalize_ip(struct mbuf **, int, struct pfi_kif *, u_short *, |
||
| 1659 | struct pf_pdesc *);
|
||
| 1660 | int pf_normalize_ip6(struct mbuf **, int, struct pfi_kif *, u_short *, |
||
| 1661 | struct pf_pdesc *);
|
||
| 1662 | int pf_normalize_tcp(int, struct pfi_kif *, struct mbuf *, int, int, void *, |
||
| 1663 | struct pf_pdesc *);
|
||
| 1664 | void pf_normalize_tcp_cleanup(struct pf_state *); |
||
| 1665 | int pf_normalize_tcp_init(struct mbuf *, int, struct pf_pdesc *, |
||
| 1666 | struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); |
||
| 1667 | int pf_normalize_tcp_stateful(struct mbuf *, int, struct pf_pdesc *, |
||
| 1668 | u_short *, struct tcphdr *, struct pf_state *, |
||
| 1669 | struct pf_state_peer *, struct pf_state_peer *, int *); |
||
| 1670 | u_int32_t |
||
| 1671 | pf_state_expires(const struct pf_state *); |
||
| 1672 | void pf_purge_expired_fragments(void); |
||
| 1673 | int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *); |
||
| 1674 | int pf_rtlabel_match(struct pf_addr *, sa_family_t, struct pf_addr_wrap *); |
||
| 1675 | int pf_socket_lookup(int, struct pf_pdesc *); |
||
| 1676 | struct pf_state_key *
|
||
| 1677 | pf_alloc_state_key(struct pf_state *);
|
||
| 1678 | void pfr_initialize(void); |
||
| 1679 | #ifdef _MODULE
|
||
| 1680 | void pfr_destroy(void); |
||
| 1681 | #endif /* _MODULE */ |
||
| 1682 | int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); |
||
| 1683 | void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, |
||
| 1684 | u_int64_t, int, int, int); |
||
| 1685 | int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, |
||
| 1686 | struct pf_addr **, struct pf_addr **, sa_family_t); |
||
| 1687 | void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); |
||
| 1688 | struct pfr_ktable *
|
||
| 1689 | pfr_attach_table(struct pf_ruleset *, char *); |
||
| 1690 | void pfr_detach_table(struct pfr_ktable *); |
||
| 1691 | int pfr_clr_tables(struct pfr_table *, int *, int); |
||
| 1692 | int pfr_add_tables(struct pfr_table *, int, int *, int); |
||
| 1693 | int pfr_del_tables(struct pfr_table *, int, int *, int); |
||
| 1694 | int pfr_get_tables(struct pfr_table *, struct pfr_table *, int *, int); |
||
| 1695 | int pfr_get_tstats(struct pfr_table *, struct pfr_tstats *, int *, int); |
||
| 1696 | int pfr_clr_tstats(struct pfr_table *, int, int *, int); |
||
| 1697 | int pfr_set_tflags(struct pfr_table *, int, int, int, int *, int *, int); |
||
| 1698 | int pfr_clr_addrs(struct pfr_table *, int *, int); |
||
| 1699 | int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, long); |
||
| 1700 | int pfr_add_addrs(struct pfr_table *, struct pfr_addr *, int, int *, |
||
| 1701 | int);
|
||
| 1702 | int pfr_del_addrs(struct pfr_table *, struct pfr_addr *, int, int *, |
||
| 1703 | int);
|
||
| 1704 | int pfr_set_addrs(struct pfr_table *, struct pfr_addr *, int, int *, |
||
| 1705 | int *, int *, int *, int, u_int32_t); |
||
| 1706 | int pfr_get_addrs(struct pfr_table *, struct pfr_addr *, int *, int); |
||
| 1707 | int pfr_get_astats(struct pfr_table *, struct pfr_astats *, int *, int); |
||
| 1708 | int pfr_clr_astats(struct pfr_table *, struct pfr_addr *, int, int *, |
||
| 1709 | int);
|
||
| 1710 | int pfr_tst_addrs(struct pfr_table *, struct pfr_addr *, int, int *, |
||
| 1711 | int);
|
||
| 1712 | int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); |
||
| 1713 | int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); |
||
| 1714 | int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); |
||
| 1715 | int pfr_ina_define(struct pfr_table *, struct pfr_addr *, int, int *, |
||
| 1716 | int *, u_int32_t, int); |
||
| 1717 | |||
| 1718 | extern struct pfi_kif *pfi_all; |
||
| 1719 | |||
| 1720 | void pfi_initialize(void); |
||
| 1721 | #ifdef _MODULE
|
||
| 1722 | void pfi_destroy(void); |
||
| 1723 | #endif /* _MODULE */ |
||
| 1724 | struct pfi_kif *pfi_kif_get(const char *); |
||
| 1725 | void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs); |
||
| 1726 | void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs); |
||
| 1727 | int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); |
||
| 1728 | void pfi_attach_ifnet(struct ifnet *); |
||
| 1729 | void pfi_detach_ifnet(struct ifnet *); |
||
| 1730 | void pfi_attach_ifgroup(struct ifg_group *); |
||
| 1731 | void pfi_detach_ifgroup(struct ifg_group *); |
||
| 1732 | void pfi_group_change(const char *); |
||
| 1733 | int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, |
||
| 1734 | sa_family_t); |
||
| 1735 | int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); |
||
| 1736 | void pfi_dynaddr_remove(struct pf_addr_wrap *); |
||
| 1737 | void pfi_dynaddr_copyout(struct pf_addr_wrap *); |
||
| 1738 | void pfi_fill_oldstatus(struct pf_status *); |
||
| 1739 | int pfi_clr_istats(const char *); |
||
| 1740 | int pfi_get_ifaces(const char *, struct pfi_kif *, int *); |
||
| 1741 | int pfi_set_flags(const char *, int); |
||
| 1742 | int pfi_clear_flags(const char *, int); |
||
| 1743 | |||
| 1744 | u_int16_t pf_tagname2tag(char *);
|
||
| 1745 | void pf_tag2tagname(u_int16_t, char *); |
||
| 1746 | void pf_tag_ref(u_int16_t);
|
||
| 1747 | void pf_tag_unref(u_int16_t);
|
||
| 1748 | int pf_tag_packet(struct mbuf *, int, int); |
||
| 1749 | u_int32_t pf_qname2qid(char *);
|
||
| 1750 | void pf_qid2qname(u_int32_t, char *); |
||
| 1751 | void pf_qid_unref(u_int32_t);
|
||
| 1752 | |||
| 1753 | extern struct pf_status pf_status; |
||
| 1754 | extern struct pool pf_frent_pl, pf_frag_pl; |
||
| 1755 | #ifdef __NetBSD__
|
||
| 1756 | extern krwlock_t pf_consistency_lock;
|
||
| 1757 | #else
|
||
| 1758 | extern struct rwlock pf_consistency_lock; |
||
| 1759 | #endif /* !__NetBSD__ */ |
||
| 1760 | |||
| 1761 | struct pf_pool_limit {
|
||
| 1762 | void *pp;
|
||
| 1763 | unsigned limit;
|
||
| 1764 | }; |
||
| 1765 | extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; |
||
| 1766 | |||
| 1767 | /*
|
||
| 1768 | * misc compatibility definitions
|
||
| 1769 | */
|
||
| 1770 | #if !defined(PRIu32)
|
||
| 1771 | #define PRIu32 "u" /* XXX */ |
||
| 1772 | #endif
|
||
| 1773 | |||
| 1774 | #if !defined(NO_PID)
|
||
| 1775 | #define NO_PID (PID_MAX + 1) |
||
| 1776 | #endif
|
||
| 1777 | |||
| 1778 | #if defined(__NetBSD__)
|
||
| 1779 | /* rwlock compatibility definitions */
|
||
| 1780 | #define rw_enter_write(a) rw_enter((a), (RW_WRITER))
|
||
| 1781 | #define rw_exit_write(a) rw_exit((a))
|
||
| 1782 | #define rw_enter_read(a) rw_enter((a), (RW_READER))
|
||
| 1783 | #define rw_exit_read(a) rw_exit((a))
|
||
| 1784 | #endif /* __NetBSD__ */ |
||
| 1785 | |||
| 1786 | #endif /* _KERNEL */ |
||
| 1787 | |||
| 1788 | extern struct pf_anchor_global pf_anchors; |
||
| 1789 | extern struct pf_anchor pf_main_anchor; |
||
| 1790 | #define pf_main_ruleset pf_main_anchor.ruleset
|
||
| 1791 | |||
| 1792 | /* these ruleset functions can be linked into userland programs (pfctl) */
|
||
| 1793 | int pf_get_ruleset_number(u_int8_t);
|
||
| 1794 | void pf_init_ruleset(struct pf_ruleset *); |
||
| 1795 | int pf_anchor_setup(struct pf_rule *, |
||
| 1796 | const struct pf_ruleset *, const char *); |
||
| 1797 | int pf_anchor_copyout(const struct pf_ruleset *, |
||
| 1798 | const struct pf_rule *, struct pfioc_rule *); |
||
| 1799 | void pf_anchor_remove(struct pf_rule *); |
||
| 1800 | void pf_remove_if_empty_ruleset(struct pf_ruleset *); |
||
| 1801 | struct pf_anchor *pf_find_anchor(const char *); |
||
| 1802 | struct pf_ruleset *pf_find_ruleset(const char *); |
||
| 1803 | struct pf_ruleset *pf_find_or_create_ruleset(const char *); |
||
| 1804 | void pf_rs_initialize(void); |
||
| 1805 | |||
| 1806 | #ifdef _KERNEL
|
||
| 1807 | int pf_anchor_copyout(const struct pf_ruleset *, |
||
| 1808 | const struct pf_rule *, struct pfioc_rule *); |
||
| 1809 | void pf_anchor_remove(struct pf_rule *); |
||
| 1810 | |||
| 1811 | #endif /* _KERNEL */ |
||
| 1812 | |||
| 1813 | /* The fingerprint functions can be linked into userland programs (tcpdump) */
|
||
| 1814 | int pf_osfp_add(struct pf_osfp_ioctl *); |
||
| 1815 | #ifdef _KERNEL
|
||
| 1816 | struct pf_osfp_enlist *
|
||
| 1817 | pf_osfp_fingerprint(struct pf_pdesc *, struct mbuf *, int, |
||
| 1818 | const struct tcphdr *); |
||
| 1819 | #endif /* _KERNEL */ |
||
| 1820 | struct pf_osfp_enlist *
|
||
| 1821 | pf_osfp_fingerprint_hdr(const struct ip *, const struct ip6_hdr *, |
||
| 1822 | const struct tcphdr *); |
||
| 1823 | void pf_osfp_flush(void); |
||
| 1824 | int pf_osfp_get(struct pf_osfp_ioctl *); |
||
| 1825 | void pf_osfp_initialize(void); |
||
| 1826 | #ifdef _MODULE
|
||
| 1827 | void pf_osfp_destroy(void); |
||
| 1828 | #endif /* _MODULE */ |
||
| 1829 | int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); |
||
| 1830 | struct pf_os_fingerprint *
|
||
| 1831 | pf_osfp_validate(void);
|
||
| 1832 | |||
| 1833 | |||
| 1834 | #endif /* _NET_PFVAR_H_ */ |