1/*
2 * Copyright (C) 1993-2001, 2003 by Darren Reed.
3 *
4 * See the IPFILTER.LICENCE file for details on licencing.
5 *
6 * @(#)ipf.h	1.12 6/5/96
7 * $Id: ipf.h,v 2.71.2.7 2005/06/12 07:18:31 darrenr Exp $
8 *
9 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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/ipf_stack.h"
72#include "netinet/ip_compat.h"
73#include "netinet/ip_fil.h"
74#include "netinet/ip_nat.h"
75#include "netinet/ip_frag.h"
76#include "netinet/ip_state.h"
77#include "netinet/ip_proxy.h"
78#include "netinet/ip_auth.h"
79#include "netinet/ip_lookup.h"
80#include "netinet/ip_pool.h"
81#ifdef IPFILTER_SCAN
82#include "netinet/ip_scan.h"
83#endif
84#include "netinet/ip_htable.h"
85#ifdef IPFILTER_SYNC
86#include "netinet/ip_sync.h"
87#endif
88
89#include "opts.h"
90
91#ifndef __P
92# ifdef __STDC__
93#  define	__P(x)	x
94# else
95#  define	__P(x)	()
96# endif
97#endif
98#ifndef __STDC__
99# undef		const
100# define	const
101#endif
102
103#ifndef	U_32_T
104# define	U_32_T	1
105# if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__) || \
106    defined(__sgi)
107typedef	u_int32_t	u_32_t;
108# else
109#  if defined(__alpha__) || defined(__alpha) || defined(_LP64)
110typedef unsigned int	u_32_t;
111#  else
112#   if SOLARIS2 >= 6
113typedef uint32_t	u_32_t;
114#   else
115typedef unsigned int	u_32_t;
116#   endif
117#  endif
118# endif /* __NetBSD__ || __OpenBSD__ || __FreeBSD__ || __sgi */
119#endif /* U_32_T */
120
121#ifndef	MAXHOSTNAMELEN
122# define	MAXHOSTNAMELEN	256
123#endif
124
125#define	MAX_ICMPCODE	16
126#define	MAX_ICMPTYPE	19
127
128
129struct	ipopt_names	{
130	int	on_value;
131	int	on_bit;
132	int	on_siz;
133	char	*on_name;
134};
135
136
137typedef struct  alist_s {
138	struct	alist_s	*al_next;
139	int		al_not;
140	sa_family_t	al_family;
141	i6addr_t	al_i6addr;
142	i6addr_t	al_i6mask;
143} alist_t;
144
145#define	al_addr	al_i6addr.in4_addr
146#define	al_mask	al_i6mask.in4_addr
147#define	al_1	al_addr
148#define	al_2	al_mask
149
150
151typedef	struct	{
152	u_short	fb_c;
153	u_char	fb_t;
154	u_char	fb_f;
155	u_32_t	fb_k;
156} fakebpf_t;
157
158
159#if defined(__NetBSD__) || defined(__OpenBSD__) || \
160        (_BSDI_VERSION >= 199701) || (__FreeBSD_version >= 300000) || \
161	SOLARIS || defined(__sgi) || defined(__osf__) || defined(linux)
162# include <stdarg.h>
163typedef	int	(* ioctlfunc_t) __P((int, ioctlcmd_t, ...));
164#else
165typedef	int	(* ioctlfunc_t) __P((dev_t, ioctlcmd_t, void *));
166#endif
167typedef	void	(* addfunc_t) __P((int, ioctlfunc_t, void *));
168typedef	int	(* copyfunc_t) __P((void *, void *, size_t));
169
170
171/*
172 * SunOS4
173 */
174#if defined(sun) && !defined(__SVR4) && !defined(__svr4__)
175extern	int	ioctl __P((int, int, void *));
176#endif
177
178extern	char	thishost[];
179extern	char	flagset[];
180extern	u_char	flags[];
181extern	struct ipopt_names ionames[];
182extern	struct ipopt_names secclass[];
183extern	char	*icmpcodes[MAX_ICMPCODE + 1];
184extern	char	*icmptypes[MAX_ICMPTYPE + 1];
185extern	int	use_inet6;
186extern	int	lineNum;
187extern	struct ipopt_names v6ionames[];
188
189
190extern int addicmp __P((char ***, struct frentry *, int));
191extern int addipopt __P((char *, struct ipopt_names *, int, char *));
192extern int addkeep __P((char ***, struct frentry *, int));
193extern int bcopywrap __P((void *, void *, size_t));
194extern void binprint __P((void *, size_t));
195extern void initparse __P((void));
196extern u_32_t buildopts __P((char *, char *, int));
197extern int checkrev __P((char *));
198extern int count6bits __P((u_32_t *));
199extern int count4bits __P((u_32_t));
200extern int extras __P((char ***, struct frentry *, int));
201extern char *fac_toname __P((int));
202extern int fac_findname __P((char *));
203extern void fill6bits __P((int, u_int *));
204extern int gethost __P((char *, i6addr_t *, int));
205extern int getport __P((struct frentry *, char *, u_short *));
206extern int getportproto __P((char *, int));
207extern int getproto __P((char *));
208extern char *getaline __P((char *, size_t, FILE *, int *));
209extern int genmask __P((char *, u_32_t *));
210extern char *getnattype __P((struct nat *, int));
211extern char *getsumd __P((u_32_t));
212extern u_32_t getoptbyname __P((char *));
213extern u_32_t getoptbyvalue __P((int));
214extern u_32_t getv6optbyname __P((char *));
215extern u_32_t getv6optbyvalue __P((int));
216extern void hexdump __P((FILE *, void *, int, int));
217extern int icmpcode __P((char *));
218extern void initparse __P((void));
219extern void ipf_dotuning __P((int, char *, ioctlfunc_t));
220extern void ipf_addrule __P((int, ioctlfunc_t, void *));
221extern int ipf_parsefile __P((int, addfunc_t, ioctlfunc_t *, char *));
222extern int ipf_parsesome __P((int, addfunc_t, ioctlfunc_t *, FILE *));
223extern int ipmon_parsefile __P((char *));
224extern int ipmon_parsesome __P((FILE *));
225extern void ipnat_addrule __P((int, ioctlfunc_t, void *));
226extern int ipnat_parsefile __P((int, addfunc_t, ioctlfunc_t, char *));
227extern int ipnat_parsesome __P((int, addfunc_t, ioctlfunc_t, FILE *));
228extern int ippool_parsefile __P((int, char *, ioctlfunc_t));
229extern int ippool_parsesome __P((int, FILE *, ioctlfunc_t));
230extern int kmemcpywrap __P((void *, void *, size_t));
231extern char *kvatoname __P((ipfunc_t, ioctlfunc_t));
232extern int load_hash __P((struct iphtable_s *, struct iphtent_s *,
233			  ioctlfunc_t));
234extern int load_hashnode __P((int, char *, struct iphtent_s *, ioctlfunc_t));
235extern int load_pool __P((struct ip_pool_s *list, ioctlfunc_t));
236extern int load_poolnode __P((int, char *, ip_pool_node_t *, ioctlfunc_t));
237extern int loglevel __P((char **, u_int *, int));
238extern alist_t *make_range __P((int, struct in_addr, struct in_addr));
239extern ipfunc_t nametokva __P((char *, ioctlfunc_t));
240extern void nat_setgroupmap __P((struct ipnat *));
241extern int ntomask __P((int, int, u_32_t *));
242extern u_32_t optname __P((char ***, u_short *, int));
243extern struct frentry *parse __P((char *, int));
244extern char *portname __P((int, int));
245extern int portnum __P((char *, char *, u_short *, int));
246extern int ports __P((char ***, char *, u_short *, int *, u_short *, int));
247extern int pri_findname __P((char *));
248extern char *pri_toname __P((int));
249extern void print_toif __P((char *, struct frdest *));
250extern void printaddr __P((int, int, char *, u_32_t *, u_32_t *));
251extern void printaps __P((ap_session_t *, int));
252extern void printbuf __P((char *, int, int));
253extern void printfr __P((struct frentry *, ioctlfunc_t));
254extern struct iphtable_s *printhash_live __P((struct iphtable_s *, int, char*, int));
255extern void printhashdata __P((struct iphtable_s *, int));
256extern void printtunable __P((ipftune_t *));
257extern struct iphtable_s *printhash __P((struct iphtable_s *, copyfunc_t,
258					 char *, int));
259extern struct iphtent_s *printhashnode __P((struct iphtable_s *,
260					    struct iphtent_s *,
261					    copyfunc_t, int));
262extern void printhostmask __P((int, u_32_t *, u_32_t *));
263extern void printip __P((u_32_t *));
264extern void printlog __P((struct frentry *));
265extern void printlookup __P((i6addr_t *addr, i6addr_t *mask));
266extern void printmask __P((int, u_32_t *));
267extern void printpacket __P((struct ip *));
268extern void printpacket6 __P((struct ip *));
269extern struct ip_pool_s *printpool __P((struct ip_pool_s *, copyfunc_t,
270					char *, int));
271extern struct ip_pool_s *printpool_live __P((struct ip_pool_s *, int, char*, int));
272extern void printpooldata __P((struct ip_pool_s *, int));
273extern struct ip_pool_node *printpoolnode __P((struct ip_pool_node *, int));
274extern void printproto __P((struct protoent *, int, struct ipnat *));
275extern void printportcmp __P((int, struct frpcmp *));
276extern void optprint __P((u_short *, u_long, u_long));
277#ifdef	USE_INET6
278extern void optprintv6 __P((u_short *, u_long, u_long));
279#endif
280extern int ratoi __P((char *, int *, int, int));
281extern int ratoui __P((char *, u_int *, u_int, u_int));
282extern int remove_hash __P((struct iphtable_s *, ioctlfunc_t));
283extern int remove_hashnode __P((int, char *, struct iphtent_s *, ioctlfunc_t));
284extern int remove_pool __P((ip_pool_t *, ioctlfunc_t));
285extern int remove_poolnode __P((int, char *, ip_pool_node_t *, ioctlfunc_t));
286extern u_char tcp_flags __P((char *, u_char *, int));
287extern u_char tcpflags __P((char *));
288extern void printc __P((struct frentry *));
289extern void printC __P((int));
290extern void emit __P((int, int, void *, struct frentry *));
291extern u_char secbit __P((int));
292extern u_char seclevel __P((char *));
293extern void printfraginfo __P((char *, struct ipfr *));
294extern void printifname __P((char *, char *, void *));
295extern char *hostname __P((int, void *));
296extern struct ipstate *printstate __P((struct ipstate *, int, u_long));
297extern void printsbuf __P((char *));
298extern void printnat __P((struct ipnat *, int));
299extern void printactiveaddress __P((int, char *, i6addr_t *, char *));
300extern void printactivenat __P((struct nat *, int, int));
301extern void printhostmap __P((struct hostmap *, u_int));
302extern void printpacket __P((struct ip *));
303
304extern void set_variable __P((char *, char *));
305extern char *get_variable __P((char *, char **, int));
306extern void resetlexer __P((void));
307
308#if SOLARIS
309extern int gethostname __P((char *, int ));
310extern void sync __P((void));
311#endif
312
313#endif /* __IPF_H__ */
314