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ip_nat.h (139255) ip_nat.h (145522)
1/* $FreeBSD: head/sys/contrib/ipfilter/netinet/ip_nat.h 145522 2005-04-25 18:43:14Z darrenr $ */
2
1/*
3/*
2 * Copyright (C) 1995-2001 by Darren Reed.
4 * Copyright (C) 1995-2001, 2003 by Darren Reed.
3 *
4 * See the IPFILTER.LICENCE file for details on licencing.
5 *
6 * @(#)ip_nat.h 1.5 2/4/96
5 *
6 * See the IPFILTER.LICENCE file for details on licencing.
7 *
8 * @(#)ip_nat.h 1.5 2/4/96
7 * $Id: ip_nat.h,v 2.17.2.14 2000/11/18 03:58:04 darrenr Exp $
8 * $FreeBSD: head/sys/contrib/ipfilter/netinet/ip_nat.h 139255 2004-12-24 09:14:26Z darrenr $
9 * $FreeBSD: head/sys/contrib/ipfilter/netinet/ip_nat.h 145522 2005-04-25 18:43:14Z darrenr $
10 * Id: ip_nat.h,v 2.90.2.9 2005/03/28 11:09:55 darrenr Exp
9 */
10
11#ifndef __IP_NAT_H__
12#define __IP_NAT_H__
13
14#ifndef SOLARIS
11 */
12
13#ifndef __IP_NAT_H__
14#define __IP_NAT_H__
15
16#ifndef SOLARIS
15#define SOLARIS (defined(sun) && (defined(__svr4__) || defined(__SVR4)))
17#define SOLARIS (defined(sun) && (defined(__svr4__) || defined(__SVR4)))
16#endif
17
18#if defined(__STDC__) || defined(__GNUC__)
18#endif
19
20#if defined(__STDC__) || defined(__GNUC__)
19#define SIOCADNAT _IOW('r', 60, struct ipnat *)
20#define SIOCRMNAT _IOW('r', 61, struct ipnat *)
21#define SIOCGNATS _IOWR('r', 62, struct natstat *)
22#define SIOCGNATL _IOWR('r', 63, struct natlookup *)
21#define SIOCADNAT _IOW('r', 60, struct ipfobj)
22#define SIOCRMNAT _IOW('r', 61, struct ipfobj)
23#define SIOCGNATS _IOWR('r', 62, struct ipfobj)
24#define SIOCGNATL _IOWR('r', 63, struct ipfobj)
25#define SIOCPROXY _IOWR('r', 64, struct ap_control)
23#else
26#else
24#define SIOCADNAT _IOW(r, 60, struct ipnat *)
25#define SIOCRMNAT _IOW(r, 61, struct ipnat *)
26#define SIOCGNATS _IOWR(r, 62, struct natstat *)
27#define SIOCGNATL _IOWR(r, 63, struct natlookup *)
27#define SIOCADNAT _IOW(r, 60, struct ipfobj)
28#define SIOCRMNAT _IOW(r, 61, struct ipfobj)
29#define SIOCGNATS _IOWR(r, 62, struct ipfobj)
30#define SIOCGNATL _IOWR(r, 63, struct ipfobj)
31#define SIOCPROXY _IOWR(r, 64, struct ap_control)
28#endif
29
32#endif
33
30#undef LARGE_NAT /* define this if you're setting up a system to NAT
34#undef LARGE_NAT /* define this if you're setting up a system to NAT
31 * LARGE numbers of networks/hosts - i.e. in the
32 * hundreds or thousands. In such a case, you should
33 * also change the RDR_SIZE and NAT_SIZE below to more
34 * appropriate sizes. The figures below were used for
35 * a setup with 1000-2000 networks to NAT.
36 */
35 * LARGE numbers of networks/hosts - i.e. in the
36 * hundreds or thousands. In such a case, you should
37 * also change the RDR_SIZE and NAT_SIZE below to more
38 * appropriate sizes. The figures below were used for
39 * a setup with 1000-2000 networks to NAT.
40 */
37#ifndef NAT_SIZE
38# ifdef LARGE_NAT
41#ifndef NAT_SIZE
42# ifdef LARGE_NAT
39# define NAT_SIZE 2047
40# else
41# define NAT_SIZE 127
42# endif
43#endif
43# define NAT_SIZE 2047
44# else
45# define NAT_SIZE 127
46# endif
47#endif
44#ifndef RDR_SIZE
45# ifdef LARGE_NAT
48#ifndef RDR_SIZE
49# ifdef LARGE_NAT
46# define RDR_SIZE 2047
47# else
48# define RDR_SIZE 127
49# endif
50#endif
50# define RDR_SIZE 2047
51# else
52# define RDR_SIZE 127
53# endif
54#endif
51#ifndef HOSTMAP_SIZE
52# ifdef LARGE_NAT
55#ifndef HOSTMAP_SIZE
56# ifdef LARGE_NAT
53# define HOSTMAP_SIZE 8191
54# else
55# define HOSTMAP_SIZE 2047
56# endif
57#endif
58#ifndef NAT_TABLE_MAX
57# define HOSTMAP_SIZE 8191
58# else
59# define HOSTMAP_SIZE 2047
60# endif
61#endif
62#ifndef NAT_TABLE_MAX
63/*
64 * This is newly introduced and for the sake of "least surprise", the numbers
65 * present aren't what we'd normally use for creating a proper hash table.
66 */
59# ifdef LARGE_NAT
60# define NAT_TABLE_MAX 180000
61# else
62# define NAT_TABLE_MAX 30000
63# endif
64#endif
67# ifdef LARGE_NAT
68# define NAT_TABLE_MAX 180000
69# else
70# define NAT_TABLE_MAX 30000
71# endif
72#endif
65#ifndef NAT_TABLE_SZ
66# ifdef LARGE_NAT
73#ifndef NAT_TABLE_SZ
74# ifdef LARGE_NAT
67# define NAT_TABLE_SZ 16383
68# else
69# define NAT_TABLE_SZ 2047
70# endif
71#endif
72#ifndef APR_LABELLEN
73#define APR_LABELLEN 16
74#endif
75#define NAT_HW_CKSUM 0x80000000
76
77#define DEF_NAT_AGE 1200 /* 10 minutes (600 seconds) */
78
75# define NAT_TABLE_SZ 16383
76# else
77# define NAT_TABLE_SZ 2047
78# endif
79#endif
80#ifndef APR_LABELLEN
81#define APR_LABELLEN 16
82#endif
83#define NAT_HW_CKSUM 0x80000000
84
85#define DEF_NAT_AGE 1200 /* 10 minutes (600 seconds) */
86
87struct ipstate;
79struct ap_session;
80
81typedef struct nat {
88struct ap_session;
89
90typedef struct nat {
82 u_long nat_age;
83 int nat_flags;
84 u_32_t nat_sumd[2];
85 u_32_t nat_ipsumd;
86 void *nat_data;
87 struct ap_session *nat_aps; /* proxy session */
88 struct frentry *nat_fr; /* filter rule ptr if appropriate */
89 struct in_addr nat_inip;
90 struct in_addr nat_outip;
91 struct in_addr nat_oip; /* other ip */
92 U_QUAD_T nat_pkts;
93 U_QUAD_T nat_bytes;
94 u_int nat_drop[2];
95 u_short nat_oport; /* other port */
96 u_short nat_inport;
97 u_short nat_outport;
98 u_short nat_use;
99 u_char nat_tcpstate[2];
100 u_char nat_p; /* protocol for NAT */
101 u_32_t nat_mssclamp; /* if != zero clamp MSS to this */
102 struct ipnat *nat_ptr; /* pointer back to the rule */
103 struct hostmap *nat_hm;
91 ipfmutex_t nat_lock;
104 struct nat *nat_next;
92 struct nat *nat_next;
93 struct nat **nat_pnext;
105 struct nat *nat_hnext[2];
106 struct nat **nat_phnext[2];
94 struct nat *nat_hnext[2];
95 struct nat **nat_phnext[2];
96 struct hostmap *nat_hm;
97 void *nat_data;
107 struct nat **nat_me;
98 struct nat **nat_me;
108 void *nat_ifp;
109 int nat_dir;
110 char nat_ifname[IFNAMSIZ];
111#if SOLARIS || defined(__sgi) || (__FreeBSD_version >= 500043)
112 kmutex_t nat_lock;
113#endif
99 struct ipstate *nat_state;
100 struct ap_session *nat_aps; /* proxy session */
101 frentry_t *nat_fr; /* filter rule ptr if appropriate */
102 struct ipnat *nat_ptr; /* pointer back to the rule */
103 void *nat_ifps[2];
104 void *nat_sync;
105 ipftqent_t nat_tqe;
106 u_32_t nat_flags;
107 u_32_t nat_sumd[2]; /* ip checksum delta for data segment*/
108 u_32_t nat_ipsumd; /* ip checksum delta for ip header */
109 u_32_t nat_mssclamp; /* if != zero clamp MSS to this */
110 i6addr_t nat_inip6;
111 i6addr_t nat_outip6;
112 i6addr_t nat_oip6; /* other ip */
113 U_QUAD_T nat_pkts[2];
114 U_QUAD_T nat_bytes[2];
115 union {
116 udpinfo_t nat_unu;
117 tcpinfo_t nat_unt;
118 icmpinfo_t nat_uni;
119 greinfo_t nat_ugre;
120 } nat_un;
121 u_short nat_oport; /* other port */
122 u_short nat_use;
123 u_char nat_p; /* protocol for NAT */
124 int nat_dir;
125 int nat_ref; /* reference count */
126 int nat_hv[2];
127 char nat_ifnames[2][LIFNAMSIZ];
128 int nat_rev; /* 0 = forward, 1 = reverse */
114} nat_t;
115
129} nat_t;
130
131#define nat_inip nat_inip6.in4
132#define nat_outip nat_outip6.in4
133#define nat_oip nat_oip6.in4
134#define nat_age nat_tqe.tqe_die
135#define nat_inport nat_un.nat_unt.ts_sport
136#define nat_outport nat_un.nat_unt.ts_dport
137#define nat_type nat_un.nat_uni.ici_type
138#define nat_seq nat_un.nat_uni.ici_seq
139#define nat_id nat_un.nat_uni.ici_id
140#define nat_tcpstate nat_tqe.tqe_state
141
142/*
143 * Values for nat_dir
144 */
145#define NAT_INBOUND 0
146#define NAT_OUTBOUND 1
147
148/*
149 * Definitions for nat_flags
150 */
151#define NAT_TCP 0x0001 /* IPN_TCP */
152#define NAT_UDP 0x0002 /* IPN_UDP */
153#define NAT_ICMPERR 0x0004 /* IPN_ICMPERR */
154#define NAT_ICMPQUERY 0x0008 /* IPN_ICMPQUERY */
155#define NAT_SEARCH 0x0010
156#define NAT_SLAVE 0x0020 /* Slave connection for a proxy */
157#define NAT_NOTRULEPORT 0x0040
158
159#define NAT_TCPUDP (NAT_TCP|NAT_UDP)
160#define NAT_TCPUDPICMP (NAT_TCP|NAT_UDP|NAT_ICMPERR)
161#define NAT_TCPUDPICMPQ (NAT_TCP|NAT_UDP|NAT_ICMPQUERY)
162#define NAT_FROMRULE (NAT_TCP|NAT_UDP)
163
164/* 0x0100 reserved for FI_W_SPORT */
165/* 0x0200 reserved for FI_W_DPORT */
166/* 0x0400 reserved for FI_W_SADDR */
167/* 0x0800 reserved for FI_W_DADDR */
168/* 0x1000 reserved for FI_W_NEWFR */
169/* 0x2000 reserved for SI_CLONE */
170/* 0x4000 reserved for SI_CLONED */
171/* 0x8000 reserved for SI_IGNOREPKT */
172
173#define NAT_DEBUG 0x800000
174
116typedef struct ipnat {
175typedef struct ipnat {
117 struct ipnat *in_next;
118 struct ipnat *in_rnext;
119 struct ipnat **in_prnext;
120 struct ipnat *in_mnext;
121 struct ipnat **in_pmnext;
122 void *in_ifp;
123 void *in_apr;
124 u_long in_space;
125 u_int in_use;
126 u_int in_hits;
127 struct in_addr in_nextip;
128 u_short in_pnext;
129 u_short in_ippip; /* IP #'s per IP# */
130 u_32_t in_flags; /* From here to in_dport must be reflected */
131 u_32_t in_mssclamp; /* if != zero clamp MSS to this */
132 u_short in_spare;
133 u_short in_ppip; /* ports per IP */
134 u_short in_port[2]; /* correctly in IPN_CMPSIZ */
135 struct in_addr in_in[2];
136 struct in_addr in_out[2];
137 struct in_addr in_src[2];
138 struct frtuc in_tuc;
139 u_int in_age[2]; /* Aging for NAT entries. Not for TCP */
140 int in_redir; /* 0 if it's a mapping, 1 if it's a hard redir */
141 char in_ifname[IFNAMSIZ];
142 char in_plabel[APR_LABELLEN]; /* proxy label */
143 char in_p; /* protocol */
176 struct ipnat *in_next; /* NAT rule list next */
177 struct ipnat *in_rnext; /* rdr rule hash next */
178 struct ipnat **in_prnext; /* prior rdr next ptr */
179 struct ipnat *in_mnext; /* map rule hash next */
180 struct ipnat **in_pmnext; /* prior map next ptr */
181 struct ipftq *in_tqehead[2];
182 void *in_ifps[2];
183 void *in_apr;
184 char *in_comment;
185 i6addr_t in_next6;
186 u_long in_space;
187 u_long in_hits;
188 u_int in_use;
189 u_int in_hv;
190 int in_flineno; /* conf. file line number */
191 u_short in_pnext;
192 u_char in_v;
193 u_char in_xxx;
194 /* From here to the end is covered by IPN_CMPSIZ */
195 u_32_t in_flags;
196 u_32_t in_mssclamp; /* if != 0 clamp MSS to this */
197 u_int in_age[2];
198 int in_redir; /* see below for values */
199 int in_p; /* protocol. */
200 i6addr_t in_in[2];
201 i6addr_t in_out[2];
202 i6addr_t in_src[2];
203 frtuc_t in_tuc;
204 u_short in_port[2];
205 u_short in_ppip; /* ports per IP. */
206 u_short in_ippip; /* IP #'s per IP# */
207 char in_ifnames[2][LIFNAMSIZ];
208 char in_plabel[APR_LABELLEN]; /* proxy label. */
209 ipftag_t in_tag;
144} ipnat_t;
145
146#define in_pmin in_port[0] /* Also holds static redir port */
147#define in_pmax in_port[1]
210} ipnat_t;
211
212#define in_pmin in_port[0] /* Also holds static redir port */
213#define in_pmax in_port[1]
148#define in_nip in_nextip.s_addr
149#define in_inip in_in[0].s_addr
150#define in_inmsk in_in[1].s_addr
151#define in_outip in_out[0].s_addr
152#define in_outmsk in_out[1].s_addr
153#define in_srcip in_src[0].s_addr
154#define in_srcmsk in_src[1].s_addr
214#define in_nextip in_next6.in4
215#define in_nip in_next6.in4.s_addr
216#define in_inip in_in[0].in4.s_addr
217#define in_inmsk in_in[1].in4.s_addr
218#define in_outip in_out[0].in4.s_addr
219#define in_outmsk in_out[1].in4.s_addr
220#define in_srcip in_src[0].in4.s_addr
221#define in_srcmsk in_src[1].in4.s_addr
155#define in_scmp in_tuc.ftu_scmp
156#define in_dcmp in_tuc.ftu_dcmp
157#define in_stop in_tuc.ftu_stop
158#define in_dtop in_tuc.ftu_dtop
159#define in_sport in_tuc.ftu_sport
160#define in_dport in_tuc.ftu_dport
161
222#define in_scmp in_tuc.ftu_scmp
223#define in_dcmp in_tuc.ftu_dcmp
224#define in_stop in_tuc.ftu_stop
225#define in_dtop in_tuc.ftu_dtop
226#define in_sport in_tuc.ftu_sport
227#define in_dport in_tuc.ftu_dport
228
162#define NAT_OUTBOUND 0
163#define NAT_INBOUND 1
229/*
230 * Bit definitions for in_flags
231 */
232#define IPN_ANY 0x00000
233#define IPN_TCP 0x00001
234#define IPN_UDP 0x00002
235#define IPN_TCPUDP (IPN_TCP|IPN_UDP)
236#define IPN_ICMPERR 0x00004
237#define IPN_TCPUDPICMP (IPN_TCP|IPN_UDP|IPN_ICMPERR)
238#define IPN_ICMPQUERY 0x00008
239#define IPN_TCPUDPICMPQ (IPN_TCP|IPN_UDP|IPN_ICMPQUERY)
240#define IPN_RF (IPN_TCPUDP|IPN_DELETE|IPN_ICMPERR)
241#define IPN_AUTOPORTMAP 0x00010
242#define IPN_IPRANGE 0x00020
243#define IPN_FILTER 0x00040
244#define IPN_SPLIT 0x00080
245#define IPN_ROUNDR 0x00100
246#define IPN_NOTSRC 0x04000
247#define IPN_NOTDST 0x08000
248#define IPN_DYNSRCIP 0x10000 /* dynamic src IP# */
249#define IPN_DYNDSTIP 0x20000 /* dynamic dst IP# */
250#define IPN_DELETE 0x40000
251#define IPN_STICKY 0x80000
252#define IPN_FRAG 0x100000
253#define IPN_FIXEDDPORT 0x200000
254#define IPN_FINDFORWARD 0x400000
255#define IPN_IN 0x800000
256#define IPN_USERFLAGS (IPN_TCPUDP|IPN_AUTOPORTMAP|IPN_IPRANGE|IPN_SPLIT|\
257 IPN_ROUNDR|IPN_FILTER|IPN_NOTSRC|IPN_NOTDST|\
258 IPN_FRAG|IPN_STICKY|IPN_FIXEDDPORT|IPN_ICMPQUERY)
164
259
260/*
261 * Values for in_redir
262 */
165#define NAT_MAP 0x01
166#define NAT_REDIRECT 0x02
167#define NAT_BIMAP (NAT_MAP|NAT_REDIRECT)
168#define NAT_MAPBLK 0x04
263#define NAT_MAP 0x01
264#define NAT_REDIRECT 0x02
265#define NAT_BIMAP (NAT_MAP|NAT_REDIRECT)
266#define NAT_MAPBLK 0x04
169/* 0x100 reserved for FI_W_SPORT */
170/* 0x200 reserved for FI_W_DPORT */
171/* 0x400 reserved for FI_W_SADDR */
172/* 0x800 reserved for FI_W_DADDR */
173/* 0x1000 reserved for FI_W_NEWFR */
174
175#define MAPBLK_MINPORT 1024 /* don't use reserved ports for src port */
176#define USABLE_PORTS (65536 - MAPBLK_MINPORT)
177
178#define IPN_CMPSIZ (sizeof(ipnat_t) - offsetof(ipnat_t, in_flags))
179
180typedef struct natlookup {
181 struct in_addr nl_inip;

--- 18 unchanged lines hidden (view full) ---

200#define ipn_rule ipn_nat.nat_fr
201
202typedef struct natget {
203 void *ng_ptr;
204 int ng_sz;
205} natget_t;
206
207
267
268#define MAPBLK_MINPORT 1024 /* don't use reserved ports for src port */
269#define USABLE_PORTS (65536 - MAPBLK_MINPORT)
270
271#define IPN_CMPSIZ (sizeof(ipnat_t) - offsetof(ipnat_t, in_flags))
272
273typedef struct natlookup {
274 struct in_addr nl_inip;

--- 18 unchanged lines hidden (view full) ---

293#define ipn_rule ipn_nat.nat_fr
294
295typedef struct natget {
296 void *ng_ptr;
297 int ng_sz;
298} natget_t;
299
300
301typedef struct nattrpnt {
302 struct in_addr tr_dstip; /* real destination IP# */
303 struct in_addr tr_srcip; /* real source IP# */
304 struct in_addr tr_locip; /* local source IP# */
305 u_int tr_flags;
306 int tr_expire;
307 u_short tr_dstport; /* real destination port# */
308 u_short tr_srcport; /* real source port# */
309 u_short tr_locport; /* local source port# */
310 struct nattrpnt *tr_hnext;
311 struct nattrpnt **tr_phnext;
312 struct nattrpnt *tr_next;
313 struct nattrpnt **tr_pnext; /* previous next */
314} nattrpnt_t;
315
316#define TN_CMPSIZ offsetof(nattrpnt_t, tr_hnext)
317
318
319/*
320 * This structure gets used to help NAT sessions keep the same NAT rule (and
321 * thus translation for IP address) when:
322 * (a) round-robin redirects are in use
323 * (b) different IP add
324 */
208typedef struct hostmap {
209 struct hostmap *hm_next;
210 struct hostmap **hm_pnext;
211 struct ipnat *hm_ipnat;
325typedef struct hostmap {
326 struct hostmap *hm_next;
327 struct hostmap **hm_pnext;
328 struct ipnat *hm_ipnat;
212 struct in_addr hm_realip;
329 struct in_addr hm_srcip;
330 struct in_addr hm_dstip;
213 struct in_addr hm_mapip;
331 struct in_addr hm_mapip;
214 int hm_ref;
332 u_32_t hm_port;
333 int hm_ref;
215} hostmap_t;
216
217
334} hostmap_t;
335
336
337/*
338 * Structure used to pass information in to nat_newmap and nat_newrdr.
339 */
340typedef struct natinfo {
341 ipnat_t *nai_np;
342 u_32_t nai_sum1;
343 u_32_t nai_sum2;
344 u_32_t nai_nflags;
345 u_32_t nai_flags;
346 struct in_addr nai_ip;
347 u_short nai_port;
348 u_short nai_nport;
349 u_short nai_sport;
350 u_short nai_dport;
351} natinfo_t;
352
353
218typedef struct natstat {
219 u_long ns_mapped[2];
220 u_long ns_rules;
221 u_long ns_added;
222 u_long ns_expire;
223 u_long ns_inuse;
224 u_long ns_logged;
225 u_long ns_logfail;
226 u_long ns_memfail;
227 u_long ns_badnat;
354typedef struct natstat {
355 u_long ns_mapped[2];
356 u_long ns_rules;
357 u_long ns_added;
358 u_long ns_expire;
359 u_long ns_inuse;
360 u_long ns_logged;
361 u_long ns_logfail;
362 u_long ns_memfail;
363 u_long ns_badnat;
364 u_long ns_addtrpnt;
228 nat_t **ns_table[2];
229 hostmap_t **ns_maptable;
230 ipnat_t *ns_list;
231 void *ns_apslist;
365 nat_t **ns_table[2];
366 hostmap_t **ns_maptable;
367 ipnat_t *ns_list;
368 void *ns_apslist;
369 u_int ns_wilds;
232 u_int ns_nattab_sz;
370 u_int ns_nattab_sz;
371 u_int ns_nattab_max;
233 u_int ns_rultab_sz;
234 u_int ns_rdrtab_sz;
372 u_int ns_rultab_sz;
373 u_int ns_rdrtab_sz;
374 u_int ns_trpntab_sz;
235 u_int ns_hostmap_sz;
236 nat_t *ns_instances;
375 u_int ns_hostmap_sz;
376 nat_t *ns_instances;
237 u_int ns_wilds;
377 nattrpnt_t *ns_trpntlist;
378 u_long *ns_bucketlen[2];
238} natstat_t;
239
379} natstat_t;
380
240#define IPN_ANY 0x000
241#define IPN_TCP 0x001
242#define IPN_UDP 0x002
243#define IPN_TCPUDP (IPN_TCP|IPN_UDP)
244#define IPN_DELETE 0x004
245#define IPN_ICMPERR 0x008
246#define IPN_RF (IPN_TCPUDP|IPN_DELETE|IPN_ICMPERR)
247#define IPN_AUTOPORTMAP 0x010
248#define IPN_IPRANGE 0x020
249#define IPN_USERFLAGS (IPN_TCPUDP|IPN_AUTOPORTMAP|IPN_IPRANGE|IPN_SPLIT|\
250 IPN_ROUNDR|IPN_FILTER|IPN_NOTSRC|IPN_NOTDST|IPN_FRAG)
251#define IPN_FILTER 0x040
252#define IPN_SPLIT 0x080
253#define IPN_ROUNDR 0x100
254#define IPN_NOTSRC 0x080000
255#define IPN_NOTDST 0x100000
256#define IPN_FRAG 0x200000
257
258
259typedef struct natlog {
260 struct in_addr nl_origip;
261 struct in_addr nl_outip;
262 struct in_addr nl_inip;
263 u_short nl_origport;
264 u_short nl_outport;
265 u_short nl_inport;
266 u_short nl_type;
267 int nl_rule;
381typedef struct natlog {
382 struct in_addr nl_origip;
383 struct in_addr nl_outip;
384 struct in_addr nl_inip;
385 u_short nl_origport;
386 u_short nl_outport;
387 u_short nl_inport;
388 u_short nl_type;
389 int nl_rule;
268 U_QUAD_T nl_pkts;
269 U_QUAD_T nl_bytes;
390 U_QUAD_T nl_pkts[2];
391 U_QUAD_T nl_bytes[2];
270 u_char nl_p;
271} natlog_t;
272
273
274#define NL_NEWMAP NAT_MAP
275#define NL_NEWRDR NAT_REDIRECT
276#define NL_NEWBIMAP NAT_BIMAP
277#define NL_NEWBLOCK NAT_MAPBLK
392 u_char nl_p;
393} natlog_t;
394
395
396#define NL_NEWMAP NAT_MAP
397#define NL_NEWRDR NAT_REDIRECT
398#define NL_NEWBIMAP NAT_BIMAP
399#define NL_NEWBLOCK NAT_MAPBLK
400#define NL_CLONE 0xfffd
278#define NL_FLUSH 0xfffe
279#define NL_EXPIRE 0xffff
280
281#define NAT_HASH_FN(k,l,m) (((k) + ((k) >> 12) + l) % (m))
282
283#define LONG_SUM(in) (((in) & 0xffff) + ((in) >> 16))
284
285#define CALC_SUMD(s1, s2, sd) { \

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291 /* Because ~1 == -2, We really need ~1 == -1 */ \
292 if ((s1) > (s2)) (s2)--; \
293 (sd) = (s2) - (s1); \
294 (sd) = ((sd) & 0xffff) + ((sd) >> 16); }
295
296#define NAT_SYSSPACE 0x80000000
297#define NAT_LOCKHELD 0x40000000
298
401#define NL_FLUSH 0xfffe
402#define NL_EXPIRE 0xffff
403
404#define NAT_HASH_FN(k,l,m) (((k) + ((k) >> 12) + l) % (m))
405
406#define LONG_SUM(in) (((in) & 0xffff) + ((in) >> 16))
407
408#define CALC_SUMD(s1, s2, sd) { \

--- 5 unchanged lines hidden (view full) ---

414 /* Because ~1 == -2, We really need ~1 == -1 */ \
415 if ((s1) > (s2)) (s2)--; \
416 (sd) = (s2) - (s1); \
417 (sd) = ((sd) & 0xffff) + ((sd) >> 16); }
418
419#define NAT_SYSSPACE 0x80000000
420#define NAT_LOCKHELD 0x40000000
421
422
299extern u_int ipf_nattable_sz;
423extern u_int ipf_nattable_sz;
424extern u_int ipf_nattable_max;
300extern u_int ipf_natrules_sz;
301extern u_int ipf_rdrrules_sz;
425extern u_int ipf_natrules_sz;
426extern u_int ipf_rdrrules_sz;
427extern u_int ipf_hostmap_sz;
428extern u_int fr_nat_maxbucket;
429extern u_int fr_nat_maxbucket_reset;
302extern int fr_nat_lock;
430extern int fr_nat_lock;
303extern void ip_natsync __P((void *));
431extern void fr_natsync __P((void *));
304extern u_long fr_defnatage;
305extern u_long fr_defnaticmpage;
432extern u_long fr_defnatage;
433extern u_long fr_defnaticmpage;
434extern u_long fr_defnatipage;
435 /* nat_table[0] -> hashed list sorted by inside (ip, port) */
436 /* nat_table[1] -> hashed list sorted by outside (ip, port) */
306extern nat_t **nat_table[2];
307extern nat_t *nat_instances;
437extern nat_t **nat_table[2];
438extern nat_t *nat_instances;
439extern ipnat_t *nat_list;
308extern ipnat_t **nat_rules;
309extern ipnat_t **rdr_rules;
440extern ipnat_t **nat_rules;
441extern ipnat_t **rdr_rules;
310extern ipnat_t *nat_list;
442extern ipftq_t *nat_utqe;
311extern natstat_t nat_stats;
443extern natstat_t nat_stats;
444
312#if defined(__OpenBSD__)
313extern void nat_ifdetach __P((void *));
314#endif
445#if defined(__OpenBSD__)
446extern void nat_ifdetach __P((void *));
447#endif
315#if defined(__NetBSD__) || defined(__OpenBSD__) || (__FreeBSD_version >= 300003)
316extern int nat_ioctl __P((caddr_t, u_long, int));
317#else
318extern int nat_ioctl __P((caddr_t, int, int));
319#endif
320extern int nat_init __P((void));
321extern nat_t *nat_new __P((fr_info_t *, ip_t *, ipnat_t *, nat_t **,
322 u_int, int));
448extern int fr_nat_ioctl __P((caddr_t, ioctlcmd_t, int));
449extern int fr_natinit __P((void));
450extern nat_t *nat_new __P((fr_info_t *, ipnat_t *, nat_t **, u_int, int));
323extern nat_t *nat_outlookup __P((fr_info_t *, u_int, u_int, struct in_addr,
451extern nat_t *nat_outlookup __P((fr_info_t *, u_int, u_int, struct in_addr,
324 struct in_addr, int));
452 struct in_addr));
453extern void fix_datacksum __P((u_short *, u_32_t));
325extern nat_t *nat_inlookup __P((fr_info_t *, u_int, u_int, struct in_addr,
454extern nat_t *nat_inlookup __P((fr_info_t *, u_int, u_int, struct in_addr,
326 struct in_addr, int));
455 struct in_addr));
456extern nat_t *nat_tnlookup __P((fr_info_t *, int));
457extern nat_t *nat_maplookup __P((void *, u_int, struct in_addr,
458 struct in_addr));
327extern nat_t *nat_lookupredir __P((natlookup_t *));
459extern nat_t *nat_lookupredir __P((natlookup_t *));
328extern nat_t *nat_icmplookup __P((ip_t *, fr_info_t *, int));
329extern nat_t *nat_icmp __P((ip_t *, fr_info_t *, u_int *, int));
330extern int nat_clearlist __P((void));
331extern void nat_insert __P((nat_t *));
460extern nat_t *nat_icmperrorlookup __P((fr_info_t *, int));
461extern nat_t *nat_icmperror __P((fr_info_t *, u_int *, int));
462extern int nat_insert __P((nat_t *, int));
332
463
333extern int ip_natout __P((ip_t *, fr_info_t *));
334extern int ip_natin __P((ip_t *, fr_info_t *));
335extern void ip_natunload __P((void)), ip_natexpire __P((void));
464extern int fr_checknatout __P((fr_info_t *, u_32_t *));
465extern int fr_natout __P((fr_info_t *, nat_t *, int, u_32_t));
466extern int fr_checknatin __P((fr_info_t *, u_32_t *));
467extern int fr_natin __P((fr_info_t *, nat_t *, int, u_32_t));
468extern void fr_natunload __P((void));
469extern void fr_natexpire __P((void));
336extern void nat_log __P((struct nat *, u_int));
337extern void fix_incksum __P((fr_info_t *, u_short *, u_32_t));
338extern void fix_outcksum __P((fr_info_t *, u_short *, u_32_t));
470extern void nat_log __P((struct nat *, u_int));
471extern void fix_incksum __P((fr_info_t *, u_short *, u_32_t));
472extern void fix_outcksum __P((fr_info_t *, u_short *, u_32_t));
339extern void fix_datacksum __P((u_short *, u_32_t));
473extern void fr_natderef __P((nat_t **));
474extern u_short *nat_proto __P((fr_info_t *, nat_t *, u_int));
475extern void nat_update __P((fr_info_t *, nat_t *, ipnat_t *));
476extern void fr_setnatqueue __P((nat_t *, int));
340
341#endif /* __IP_NAT_H__ */
477
478#endif /* __IP_NAT_H__ */