ipf.h revision 170268 
1/*	$FreeBSD: head/contrib/ipfilter/ipf.h 170268 2007-06-04 02:54:36Z darrenr $	*/
2
3/*
4 * Copyright (C) 1993-2001, 2003 by Darren Reed.
5 *
6 * See the IPFILTER.LICENCE file for details on licencing.
7 *
8 * @(#)ipf.h	1.12 6/5/96
9 * $Id: ipf.h,v 2.71.2.15 2007/05/11 10:44:14 darrenr Exp $
10 */
11
12#ifndef	__IPF_H__
13#define	__IPF_H__
14
15#if defined(__osf__)
16# define radix_mask ipf_radix_mask
17# define radix_node ipf_radix_node
18# define radix_node_head ipf_radix_node_head
19#endif
20
21#include <sys/param.h>
22#include <sys/types.h>
23#include <sys/file.h>
24/*
25 * This is a workaround for <sys/uio.h> troubles on FreeBSD, HPUX, OpenBSD.
26 * Needed here because on some systems <sys/uio.h> gets included by things
27 * like <sys/socket.h>
28 */
29#ifndef _KERNEL
30# define ADD_KERNEL
31# define _KERNEL
32# define KERNEL
33#endif
34#ifdef __OpenBSD__
35struct file;
36#endif
37#include <sys/uio.h>
38#ifdef ADD_KERNEL
39# undef _KERNEL
40# undef KERNEL
41#endif
42#include <sys/time.h>
43#include <sys/socket.h>
44#include <net/if.h>
45#if __FreeBSD_version >= 300000
46# include <net/if_var.h>
47#endif
48#include <netinet/in.h>
49#include <netinet/in_systm.h>
50#include <netinet/ip.h>
51#include <netinet/ip_icmp.h>
52#ifndef	TCP_PAWS_IDLE	/* IRIX */
53# include <netinet/tcp.h>
54#endif
55#include <netinet/udp.h>
56
57#include <arpa/inet.h>
58
59#include <errno.h>
60#include <limits.h>
61#include <netdb.h>
62#include <stdlib.h>
63#include <stddef.h>
64#include <stdio.h>
65#if !defined(__SVR4) && !defined(__svr4__) && defined(sun)
66# include <strings.h>
67#endif
68#include <string.h>
69#include <unistd.h>
70
71#include "netinet/ip_compat.h"
72#include "netinet/ip_fil.h"
73#include "netinet/ip_nat.h"
74#include "netinet/ip_frag.h"
75#include "netinet/ip_state.h"
76#include "netinet/ip_proxy.h"
77#include "netinet/ip_auth.h"
78#include "netinet/ip_lookup.h"
79#include "netinet/ip_pool.h"
80#include "netinet/ip_scan.h"
81#include "netinet/ip_htable.h"
82#include "netinet/ip_sync.h"
83
84#include "opts.h"
85
86#ifndef __P
87# ifdef __STDC__
88#  define	__P(x)	x
89# else
90#  define	__P(x)	()
91# endif
92#endif
93#ifndef __STDC__
94# undef		const
95# define	const
96#endif
97
98#ifndef	U_32_T
99# define	U_32_T	1
100# if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__) || \
101    defined(__sgi)
102typedef	u_int32_t	u_32_t;
103# else
104#  if defined(__alpha__) || defined(__alpha) || defined(_LP64)
105typedef unsigned int	u_32_t;
106#  else
107#   if SOLARIS2 >= 6
108typedef uint32_t	u_32_t;
109#   else
110typedef unsigned int	u_32_t;
111#   endif
112#  endif
113# endif /* __NetBSD__ || __OpenBSD__ || __FreeBSD__ || __sgi */
114#endif /* U_32_T */
115
116#ifndef	MAXHOSTNAMELEN
117# define	MAXHOSTNAMELEN	256
118#endif
119
120#define	MAX_ICMPCODE	16
121#define	MAX_ICMPTYPE	19
122
123
124struct	ipopt_names	{
125	int	on_value;
126	int	on_bit;
127	int	on_siz;
128	char	*on_name;
129};
130
131
132typedef struct  alist_s {
133	struct	alist_s	*al_next;
134	int		al_not;
135	i6addr_t	al_i6addr;
136	i6addr_t	al_i6mask;
137} alist_t;
138
139#define	al_addr	al_i6addr.in4_addr
140#define	al_mask	al_i6mask.in4_addr
141#define	al_1	al_addr
142#define	al_2	al_mask
143
144
145typedef	struct	{
146	u_short	fb_c;
147	u_char	fb_t;
148	u_char	fb_f;
149	u_32_t	fb_k;
150} fakebpf_t;
151
152
153#if defined(__NetBSD__) || defined(__OpenBSD__) || \
154        (_BSDI_VERSION >= 199701) || (__FreeBSD_version >= 300000) || \
155	SOLARIS || defined(__sgi) || defined(__osf__) || defined(linux)
156# include <stdarg.h>
157typedef	int	(* ioctlfunc_t) __P((int, ioctlcmd_t, ...));
158#else
159typedef	int	(* ioctlfunc_t) __P((dev_t, ioctlcmd_t, void *));
160#endif
161typedef	void	(* addfunc_t) __P((int, ioctlfunc_t, void *));
162typedef	int	(* copyfunc_t) __P((void *, void *, size_t));
163
164
165/*
166 * SunOS4
167 */
168#if defined(sun) && !defined(__SVR4) && !defined(__svr4__)
169extern	int	ioctl __P((int, int, void *));
170#endif
171
172extern	char	thishost[];
173extern	char	flagset[];
174extern	u_char	flags[];
175extern	struct ipopt_names ionames[];
176extern	struct ipopt_names secclass[];
177extern	char	*icmpcodes[MAX_ICMPCODE + 1];
178extern	char	*icmptypes[MAX_ICMPTYPE + 1];
179extern	int	use_inet6;
180extern	int	lineNum;
181extern	struct ipopt_names v6ionames[];
182
183
184extern int addicmp __P((char ***, struct frentry *, int));
185extern int addipopt __P((char *, struct ipopt_names *, int, char *));
186extern void alist_free __P((alist_t *));
187extern alist_t *alist_new __P((int, char *));
188extern void binprint __P((void *, size_t));
189extern void initparse __P((void));
190extern u_32_t buildopts __P((char *, char *, int));
191extern int checkrev __P((char *));
192extern int count6bits __P((u_32_t *));
193extern int count4bits __P((u_32_t));
194extern char *fac_toname __P((int));
195extern int fac_findname __P((char *));
196extern void fill6bits __P((int, u_int *));
197extern int gethost __P((char *, u_32_t *));
198extern int getport __P((struct frentry *, char *, u_short *));
199extern int getportproto __P((char *, int));
200extern int getproto __P((char *));
201extern char *getnattype __P((struct nat *, int));
202extern char *getsumd __P((u_32_t));
203extern u_32_t getoptbyname __P((char *));
204extern u_32_t getoptbyvalue __P((int));
205extern u_32_t getv6optbyname __P((char *));
206extern u_32_t getv6optbyvalue __P((int));
207extern void initparse __P((void));
208extern void ipf_dotuning __P((int, char *, ioctlfunc_t));
209extern void ipf_addrule __P((int, ioctlfunc_t, void *));
210extern int ipf_parsefile __P((int, addfunc_t, ioctlfunc_t *, char *));
211extern int ipf_parsesome __P((int, addfunc_t, ioctlfunc_t *, FILE *));
212extern int ipmon_parsefile __P((char *));
213extern int ipmon_parsesome __P((FILE *));
214extern void ipnat_addrule __P((int, ioctlfunc_t, void *));
215extern int ipnat_parsefile __P((int, addfunc_t, ioctlfunc_t, char *));
216extern int ipnat_parsesome __P((int, addfunc_t, ioctlfunc_t, FILE *));
217extern int ippool_parsefile __P((int, char *, ioctlfunc_t));
218extern int ippool_parsesome __P((int, FILE *, ioctlfunc_t));
219extern int kmemcpywrap __P((void *, void *, size_t));
220extern char *kvatoname __P((ipfunc_t, ioctlfunc_t));
221extern alist_t *load_file __P((char *));
222extern int load_hash __P((struct iphtable_s *, struct iphtent_s *,
223			  ioctlfunc_t));
224extern int load_hashnode __P((int, char *, struct iphtent_s *, ioctlfunc_t));
225extern alist_t *load_http __P((char *));
226extern int load_pool __P((struct ip_pool_s *list, ioctlfunc_t));
227extern int load_poolnode __P((int, char *, ip_pool_node_t *, ioctlfunc_t));
228extern alist_t *load_url __P((char *));
229extern alist_t *make_range __P((int, struct in_addr, struct in_addr));
230extern ipfunc_t nametokva __P((char *, ioctlfunc_t));
231extern void nat_setgroupmap __P((struct ipnat *));
232extern int ntomask __P((int, int, u_32_t *));
233extern u_32_t optname __P((char ***, u_short *, int));
234extern struct frentry *parse __P((char *, int));
235extern char *portname __P((int, int));
236extern int pri_findname __P((char *));
237extern char *pri_toname __P((int));
238extern void print_toif __P((char *, struct frdest *));
239extern void printaps __P((ap_session_t *, int));
240extern void printbuf __P((char *, int, int));
241extern void printfr __P((struct frentry *, ioctlfunc_t));
242extern void printtunable __P((ipftune_t *));
243extern struct iphtable_s *printhash __P((struct iphtable_s *, copyfunc_t,
244					 char *, int));
245extern struct iphtable_s *printhash_live __P((iphtable_t *, int, char *, int));
246extern void printhashdata __P((iphtable_t *, int));
247extern struct iphtent_s *printhashnode __P((struct iphtable_s *,
248					    struct iphtent_s *,
249					    copyfunc_t, int));
250extern void printhostmask __P((int, u_32_t *, u_32_t *));
251extern void printip __P((u_32_t *));
252extern void printlog __P((struct frentry *));
253extern void printlookup __P((i6addr_t *addr, i6addr_t *mask));
254extern void printmask __P((u_32_t *));
255extern void printpacket __P((struct ip *));
256extern void printpacket6 __P((struct ip *));
257extern struct ip_pool_s *printpool __P((struct ip_pool_s *, copyfunc_t,
258					char *, int));
259extern struct ip_pool_s *printpool_live __P((struct ip_pool_s *, int,
260					     char *, int));
261extern void printpooldata __P((ip_pool_t *, int));
262extern struct ip_pool_node *printpoolnode __P((struct ip_pool_node *, int));
263extern void printproto __P((struct protoent *, int, struct ipnat *));
264extern void printportcmp __P((int, struct frpcmp *));
265extern void optprint __P((u_short *, u_long, u_long));
266#ifdef	USE_INET6
267extern void optprintv6 __P((u_short *, u_long, u_long));
268#endif
269extern int remove_hash __P((struct iphtable_s *, ioctlfunc_t));
270extern int remove_hashnode __P((int, char *, struct iphtent_s *, ioctlfunc_t));
271extern int remove_pool __P((ip_pool_t *, ioctlfunc_t));
272extern int remove_poolnode __P((int, char *, ip_pool_node_t *, ioctlfunc_t));
273extern u_char tcp_flags __P((char *, u_char *, int));
274extern u_char tcpflags __P((char *));
275extern void printc __P((struct frentry *));
276extern void printC __P((int));
277extern void emit __P((int, int, void *, struct frentry *));
278extern u_char secbit __P((int));
279extern u_char seclevel __P((char *));
280extern void printfraginfo __P((char *, struct ipfr *));
281extern void printifname __P((char *, char *, void *));
282extern char *hostname __P((int, void *));
283extern struct ipstate *printstate __P((struct ipstate *, int, u_long));
284extern void printsbuf __P((char *));
285extern void printnat __P((struct ipnat *, int));
286extern void printactivenat __P((struct nat *, int, int, u_long));
287extern void printhostmap __P((struct hostmap *, u_int));
288extern void printtqtable __P((ipftq_t *));
289
290extern void set_variable __P((char *, char *));
291extern char *get_variable __P((char *, char **, int));
292extern void resetlexer __P((void));
293
294#if SOLARIS
295extern int gethostname __P((char *, int ));
296extern void sync __P((void));
297#endif
298
299#endif /* __IPF_H__ */
300