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/* $OpenBSD: pfvar.h,v 1.5 2001/06/24 23:44:00 art 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_
#include <sys/types.h>
enum { PF_IN=0, PF_OUT=1 };
enum { PF_PASS=0, PF_DROP=1, PF_DROP_RST=2 };
struct rule_addr {
u_int32_t addr;
u_int32_t mask;
u_int16_t port[2];
u_int8_t not;
u_int8_t port_op;
};
struct rule {
char ifname[IFNAMSIZ];
struct ifnet *ifp;
struct rule_addr src;
struct rule_addr dst;
struct rule *next;
u_int8_t action;
u_int8_t direction;
u_int8_t log;
u_int8_t quick;
u_int8_t keep_state;
u_int8_t proto;
u_int8_t type;
u_int8_t code;
u_int8_t flags;
u_int8_t flagset;
};
struct state_host {
u_int32_t addr;
u_int16_t port;
};
struct state_peer {
u_int32_t seqlo;
u_int32_t seqhi;
u_int8_t state;
};
struct state {
struct state *next;
struct state_host lan;
struct state_host gwy;
struct state_host ext;
struct state_peer src;
struct state_peer dst;
u_int32_t creation;
u_int32_t expire;
u_int32_t packets;
u_int32_t bytes;
u_int8_t proto;
u_int8_t direction;
};
struct nat {
char ifname[IFNAMSIZ];
struct ifnet *ifp;
struct nat *next;
u_int32_t saddr;
u_int32_t smask;
u_int32_t daddr;
u_int8_t proto;
u_int8_t not;
};
struct rdr {
char ifname[IFNAMSIZ];
struct ifnet *ifp;
struct rdr *next;
u_int32_t daddr;
u_int32_t dmask;
u_int32_t raddr;
u_int16_t dport;
u_int16_t rport;
u_int8_t proto;
u_int8_t not;
};
struct status {
u_int32_t running;
u_int32_t bytes[2];
u_int32_t packets[2][2];
u_int32_t states;
u_int32_t state_inserts;
u_int32_t state_removals;
u_int32_t state_searches;
u_int32_t since;
};
/*
* ioctl parameter structure
*/
struct pfioc {
u_int32_t size;
u_int16_t entries;
void *buffer;
};
/*
* ioctl operations
*/
#define DIOCSTART _IO ('D', 1)
#define DIOCSTOP _IO ('D', 2)
#define DIOCSETRULES _IOWR('D', 3, struct pfioc)
#define DIOCGETRULES _IOWR('D', 4, struct pfioc)
#define DIOCSETNAT _IOWR('D', 5, struct pfioc)
#define DIOCGETNAT _IOWR('D', 6, struct pfioc)
#define DIOCSETRDR _IOWR('D', 7, struct pfioc)
#define DIOCGETRDR _IOWR('D', 8, struct pfioc)
#define DIOCCLRSTATES _IO ('D', 9)
#define DIOCGETSTATES _IOWR('D', 10, struct pfioc)
#define DIOCSETSTATUSIF _IOWR('D', 11, struct pfioc)
#define DIOCGETSTATUS _IOWR('D', 12, struct pfioc)
/*
* ioctl errors
*/
enum error_msg {
NO_ERROR=0,
ERROR_INVALID_OP=100,
ERROR_ALREADY_RUNNING,
ERROR_NOT_RUNNING,
ERROR_INVALID_PARAMETERS,
ERROR_MALLOC,
MAX_ERROR_NUM
};
#ifdef _KERNEL
int pf_test(int, struct ifnet *, struct mbuf **);
#endif /* _KERNEL */
#endif /* _NET_PFVAR_H_ */
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