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/* $OpenBSD: pfctl_parser.h,v 1.50 2003/03/07 12:55:37 henning 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 _PFCTL_PARSER_H_
#define _PFCTL_PARSER_H_
#define PF_OPT_DISABLE 0x0001
#define PF_OPT_ENABLE 0x0002
#define PF_OPT_VERBOSE 0x0004
#define PF_OPT_NOACTION 0x0008
#define PF_OPT_QUIET 0x0010
#define PF_OPT_CLRRULECTRS 0x0020
#define PF_OPT_USEDNS 0x0040
#define PF_OPT_VERBOSE2 0x0080
#define PF_OPT_DUMMYACTION 0x0100
#define PF_OPT_DEBUG 0x0200
#define PF_TH_ALL 0xFF
#define PF_NAT_PROXY_PORT_LOW 50001
#define PF_NAT_PROXY_PORT_HIGH 65535
#define FCNT_NAMES { \
"searches", \
"inserts", \
"removals", \
NULL \
}
struct pfctl {
int dev;
int opts;
int loadopt;
u_int32_t rule_nr;
struct pfioc_pooladdr paddr;
struct pfioc_rule *prule[PF_RULESET_MAX];
struct pfioc_altq *paltq;
struct pfioc_queue *pqueue;
};
enum pfctl_iflookup_mode {
PFCTL_IFLOOKUP_HOST,
PFCTL_IFLOOKUP_NET,
PFCTL_IFLOOKUP_BCAST
};
struct node_if {
char ifname[IFNAMSIZ];
u_int8_t not;
u_int ifa_flags;
struct node_if *next;
struct node_if *tail;
};
struct node_host {
struct pf_addr_wrap addr;
struct pf_addr bcast;
sa_family_t af;
u_int8_t not;
u_int32_t ifindex; /* link-local IPv6 addrs */
char *ifname;
u_int ifa_flags;
struct node_host *next;
struct node_host *tail;
};
int pfctl_add_rule(struct pfctl *, struct pf_rule *);
int pfctl_add_altq(struct pfctl *, struct pf_altq *);
int pfctl_add_pool(struct pfctl *, struct pf_pool *, sa_family_t);
void pfctl_clear_pool(struct pf_pool *);
int pfctl_set_timeout(struct pfctl *, const char *, int, int);
int pfctl_set_optimization(struct pfctl *, const char *);
int pfctl_set_limit(struct pfctl *, const char *, unsigned int);
int pfctl_set_logif(struct pfctl *, char *);
int parse_rules(FILE *, struct pfctl *);
int parse_flags(char *);
void print_filter(struct pf_rule *, int);
void print_pool(struct pf_pool *, u_int16_t, u_int16_t, sa_family_t, int);
void print_rule(struct pf_rule *, int);
void print_nat(struct pf_rule *, int);
void print_binat(struct pf_rule *, int);
void print_rdr(struct pf_rule *, int);
void print_status(struct pf_status *);
int eval_pfaltq(struct pfctl *, struct pf_altq *, u_int32_t, u_int16_t);
int eval_pfqueue(struct pfctl *, struct pf_altq *, u_int32_t, u_int16_t);
void pfctl_begin_table(void);
void pfctl_append_addr(char *, int, int);
void pfctl_append_file(char *);
void pfctl_define_table(char *, int, int, int);
void pfctl_commit_table(void);
struct icmptypeent {
char *name;
u_int8_t type;
};
struct icmpcodeent {
char *name;
u_int8_t type;
u_int8_t code;
};
const struct icmptypeent *geticmptypebynumber(u_int8_t, u_int8_t);
const struct icmptypeent *geticmptypebyname(char *, u_int8_t);
const struct icmpcodeent *geticmpcodebynumber(u_int8_t, u_int8_t, u_int8_t);
const struct icmpcodeent *geticmpcodebyname(u_long, char *, u_int8_t);
struct pf_timeout {
const char *name;
int timeout;
};
#define PFCTL_FLAG_ALL 0x01
#define PFCTL_FLAG_FILTER 0x02
#define PFCTL_FLAG_NAT 0x04
#define PFCTL_FLAG_OPTION 0x08
#define PFCTL_FLAG_ALTQ 0x10
#define PFCTL_FLAG_TABLE 0x20
extern const struct pf_timeout pf_timeouts[];
void set_ipmask(struct node_host *, u_int8_t);
void ifa_load(void);
struct node_host *ifa_exists(const char *);
struct node_host *ifa_lookup(const char *, enum pfctl_iflookup_mode);
struct node_host *host(const char *, int);
#endif /* _PFCTL_PARSER_H_ */
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