xref: /illumos-gate/usr/src/uts/common/inet/ipf/ipf.h (revision af5f29dd)
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__
35 struct 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)
107 typedef	u_int32_t	u_32_t;
108 # else
109 #  if defined(__alpha__) || defined(__alpha) || defined(_LP64)
110 typedef unsigned int	u_32_t;
111 #  else
112 #   if SOLARIS2 >= 6
113 typedef uint32_t	u_32_t;
114 #   else
115 typedef 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 
129 struct	ipopt_names	{
130 	int	on_value;
131 	int	on_bit;
132 	int	on_siz;
133 	char	*on_name;
134 };
135 
136 
137 typedef 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 
151 typedef	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 	defined(SOLARIS) || defined(__sgi) || defined(__osf__) || \
162 	defined(linux)
163 # include <stdarg.h>
164 typedef	int	(* ioctlfunc_t) __P((int, ioctlcmd_t, ...));
165 #else
166 typedef	int	(* ioctlfunc_t) __P((dev_t, ioctlcmd_t, void *));
167 #endif
168 typedef	void	(* addfunc_t) __P((int, ioctlfunc_t, void *));
169 typedef	int	(* copyfunc_t) __P((void *, void *, size_t));
170 
171 
172 /*
173  * SunOS4
174  */
175 #if defined(sun) && !defined(__SVR4) && !defined(__svr4__)
176 extern	int	ioctl __P((int, int, void *));
177 #endif
178 
179 extern	char	thishost[];
180 extern	char	flagset[];
181 extern	u_char	flags[];
182 extern	struct ipopt_names ionames[];
183 extern	struct ipopt_names secclass[];
184 extern	char	*icmpcodes[MAX_ICMPCODE + 1];
185 extern	char	*icmptypes[MAX_ICMPTYPE + 1];
186 extern	int	use_inet6;
187 extern	int	lineNum;
188 extern	struct ipopt_names v6ionames[];
189 
190 
191 extern int addicmp __P((char ***, struct frentry *, int));
192 extern int addipopt __P((char *, struct ipopt_names *, int, char *));
193 extern int addkeep __P((char ***, struct frentry *, int));
194 extern int bcopywrap __P((void *, void *, size_t));
195 extern void binprint __P((void *, size_t));
196 extern void initparse __P((void));
197 extern u_32_t buildopts __P((char *, char *, int));
198 extern int checkrev __P((char *));
199 extern int count6bits __P((u_32_t *));
200 extern int count4bits __P((u_32_t));
201 extern int extras __P((char ***, struct frentry *, int));
202 extern char *fac_toname __P((int));
203 extern int fac_findname __P((char *));
204 extern void fill6bits __P((int, u_int *));
205 extern int gethost __P((char *, i6addr_t *, int));
206 extern int getport __P((struct frentry *, char *, u_short *));
207 extern int getportproto __P((char *, int));
208 extern int getproto __P((char *));
209 extern char *getaline __P((char *, size_t, FILE *, int *));
210 extern int genmask __P((char *, u_32_t *));
211 extern char *getnattype __P((struct nat *, int));
212 extern char *getsumd __P((u_32_t));
213 extern u_32_t getoptbyname __P((char *));
214 extern u_32_t getoptbyvalue __P((int));
215 extern u_32_t getv6optbyname __P((char *));
216 extern u_32_t getv6optbyvalue __P((int));
217 extern void hexdump __P((FILE *, void *, int, int));
218 extern int icmpcode __P((char *));
219 extern void initparse __P((void));
220 extern void ipf_dotuning __P((int, char *, ioctlfunc_t));
221 extern void ipf_addrule __P((int, ioctlfunc_t, void *));
222 extern int ipf_parsefile __P((int, addfunc_t, ioctlfunc_t *, char *));
223 extern int ipf_parsesome __P((int, addfunc_t, ioctlfunc_t *, FILE *));
224 extern int ipmon_parsefile __P((char *));
225 extern int ipmon_parsesome __P((FILE *));
226 extern void ipnat_addrule __P((int, ioctlfunc_t, void *));
227 extern int ipnat_parsefile __P((int, addfunc_t, ioctlfunc_t, char *));
228 extern int ipnat_parsesome __P((int, addfunc_t, ioctlfunc_t, FILE *));
229 extern int ippool_parsefile __P((int, char *, ioctlfunc_t));
230 extern int ippool_parsesome __P((int, FILE *, ioctlfunc_t));
231 extern int kmemcpywrap __P((void *, void *, size_t));
232 extern char *kvatoname __P((ipfunc_t, ioctlfunc_t));
233 extern int load_hash __P((struct iphtable_s *, struct iphtent_s *,
234 			  ioctlfunc_t));
235 extern int load_hashnode __P((int, char *, struct iphtent_s *, ioctlfunc_t));
236 extern int load_pool __P((struct ip_pool_s *list, ioctlfunc_t));
237 extern int load_poolnode __P((int, char *, ip_pool_node_t *, ioctlfunc_t));
238 extern int loglevel __P((char **, u_int *, int));
239 extern alist_t *make_range __P((int, struct in_addr, struct in_addr));
240 extern ipfunc_t nametokva __P((char *, ioctlfunc_t));
241 extern void nat_setgroupmap __P((struct ipnat *));
242 extern int ntomask __P((int, int, u_32_t *));
243 extern u_32_t optname __P((char ***, u_short *, int));
244 extern struct frentry *parse __P((char *, int));
245 extern char *portname __P((int, int));
246 extern int portnum __P((char *, char *, u_short *, int));
247 extern int ports __P((char ***, char *, u_short *, int *, u_short *, int));
248 extern int pri_findname __P((char *));
249 extern char *pri_toname __P((int));
250 extern void print_toif __P((char *, struct frdest *));
251 extern void printaddr __P((int, int, char *, u_32_t *, u_32_t *));
252 extern void printaps __P((ap_session_t *, int));
253 extern void printbuf __P((char *, int, int));
254 extern void printfr __P((struct frentry *, ioctlfunc_t));
255 extern struct iphtable_s *printhash_live __P((struct iphtable_s *, int, char*, int));
256 extern void printhashdata __P((struct iphtable_s *, int));
257 extern void printtunable __P((ipftune_t *));
258 extern struct iphtable_s *printhash __P((struct iphtable_s *, copyfunc_t,
259 					 char *, int));
260 extern struct iphtent_s *printhashnode __P((struct iphtable_s *,
261 					    struct iphtent_s *,
262 					    copyfunc_t, int));
263 extern void printhostmask __P((int, u_32_t *, u_32_t *));
264 extern void printip __P((u_32_t *));
265 extern void printlog __P((struct frentry *));
266 extern void printlookup __P((i6addr_t *addr, i6addr_t *mask));
267 extern void printmask __P((int, u_32_t *));
268 extern void printpacket __P((struct ip *));
269 extern void printpacket6 __P((struct ip *));
270 extern struct ip_pool_s *printpool __P((struct ip_pool_s *, copyfunc_t,
271 					char *, int));
272 extern struct ip_pool_s *printpool_live __P((struct ip_pool_s *, int, char*, int));
273 extern void printpooldata __P((struct ip_pool_s *, int));
274 extern struct ip_pool_node *printpoolnode __P((struct ip_pool_node *, int));
275 extern void printproto __P((struct protoent *, int, struct ipnat *));
276 extern void printportcmp __P((int, struct frpcmp *));
277 extern void optprint __P((u_short *, u_long, u_long));
278 #ifdef	USE_INET6
279 extern void optprintv6 __P((u_short *, u_long, u_long));
280 #endif
281 extern int ratoi __P((char *, int *, int, int));
282 extern int ratoui __P((char *, u_int *, u_int, u_int));
283 extern int remove_hash __P((struct iphtable_s *, ioctlfunc_t));
284 extern int remove_hashnode __P((int, char *, struct iphtent_s *, ioctlfunc_t));
285 extern int remove_pool __P((ip_pool_t *, ioctlfunc_t));
286 extern int remove_poolnode __P((int, char *, ip_pool_node_t *, ioctlfunc_t));
287 extern u_char tcp_flags __P((char *, u_char *, int));
288 extern u_char tcpflags __P((char *));
289 extern void printc __P((struct frentry *));
290 extern void printC __P((int));
291 extern void emit __P((int, int, void *, struct frentry *));
292 extern u_char secbit __P((int));
293 extern u_char seclevel __P((char *));
294 extern void printfraginfo __P((char *, struct ipfr *));
295 extern void printifname __P((char *, char *, void *));
296 extern char *hostname __P((int, void *));
297 extern struct ipstate *printstate __P((struct ipstate *, int, u_long));
298 extern void printsbuf __P((char *));
299 extern void printnat __P((struct ipnat *, int));
300 extern void printactiveaddress __P((int, char *, i6addr_t *, char *));
301 extern void printactivenat __P((struct nat *, int, int));
302 extern void printhostmap __P((struct hostmap *, u_int));
303 extern void printpacket __P((struct ip *));
304 
305 extern void set_variable __P((char *, char *));
306 extern char *get_variable __P((char *, char **, int));
307 extern void resetlexer __P((void));
308 
309 #ifdef SOLARIS
310 extern int gethostname __P((char *, int ));
311 extern void sync __P((void));
312 #endif
313 
314 #endif /* __IPF_H__ */
315