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16#ifndef _UAPI_IPTABLES_H
17#define _UAPI_IPTABLES_H
18
19#include <linux/types.h>
20#include <linux/compiler.h>
21#include <linux/if.h>
22#include <linux/netfilter_ipv4.h>
23
24#include <linux/netfilter/x_tables.h>
25
26#ifndef __KERNEL__
27#define IPT_FUNCTION_MAXNAMELEN XT_FUNCTION_MAXNAMELEN
28#define IPT_TABLE_MAXNAMELEN XT_TABLE_MAXNAMELEN
29#define ipt_match xt_match
30#define ipt_target xt_target
31#define ipt_table xt_table
32#define ipt_get_revision xt_get_revision
33#define ipt_entry_match xt_entry_match
34#define ipt_entry_target xt_entry_target
35#define ipt_standard_target xt_standard_target
36#define ipt_error_target xt_error_target
37#define ipt_counters xt_counters
38#define IPT_CONTINUE XT_CONTINUE
39#define IPT_RETURN XT_RETURN
40
41
42#include <linux/netfilter/xt_tcpudp.h>
43#define ipt_udp xt_udp
44#define ipt_tcp xt_tcp
45#define IPT_TCP_INV_SRCPT XT_TCP_INV_SRCPT
46#define IPT_TCP_INV_DSTPT XT_TCP_INV_DSTPT
47#define IPT_TCP_INV_FLAGS XT_TCP_INV_FLAGS
48#define IPT_TCP_INV_OPTION XT_TCP_INV_OPTION
49#define IPT_TCP_INV_MASK XT_TCP_INV_MASK
50#define IPT_UDP_INV_SRCPT XT_UDP_INV_SRCPT
51#define IPT_UDP_INV_DSTPT XT_UDP_INV_DSTPT
52#define IPT_UDP_INV_MASK XT_UDP_INV_MASK
53
54
55#define ipt_counters_info xt_counters_info
56
57#define IPT_STANDARD_TARGET XT_STANDARD_TARGET
58
59#define IPT_ERROR_TARGET XT_ERROR_TARGET
60
61
62#define IPT_MATCH_ITERATE(e, fn, args...) \
63 XT_MATCH_ITERATE(struct ipt_entry, e, fn, ## args)
64
65
66#define IPT_ENTRY_ITERATE(entries, size, fn, args...) \
67 XT_ENTRY_ITERATE(struct ipt_entry, entries, size, fn, ## args)
68#endif
69
70
71struct ipt_ip {
72
73 struct in_addr src, dst;
74
75 struct in_addr smsk, dmsk;
76 char iniface[IFNAMSIZ], outiface[IFNAMSIZ];
77 unsigned char iniface_mask[IFNAMSIZ], outiface_mask[IFNAMSIZ];
78
79
80 __u16 proto;
81
82
83 __u8 flags;
84
85 __u8 invflags;
86};
87
88
89#define IPT_F_FRAG 0x01
90#define IPT_F_GOTO 0x02
91#define IPT_F_MASK 0x03
92
93
94#define IPT_INV_VIA_IN 0x01
95#define IPT_INV_VIA_OUT 0x02
96#define IPT_INV_TOS 0x04
97#define IPT_INV_SRCIP 0x08
98#define IPT_INV_DSTIP 0x10
99#define IPT_INV_FRAG 0x20
100#define IPT_INV_PROTO XT_INV_PROTO
101#define IPT_INV_MASK 0x7F
102
103
104
105
106struct ipt_entry {
107 struct ipt_ip ip;
108
109
110 unsigned int nfcache;
111
112
113 __u16 target_offset;
114
115 __u16 next_offset;
116
117
118 unsigned int comefrom;
119
120
121 struct xt_counters counters;
122
123
124 unsigned char elems[0];
125};
126
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132
133
134#define IPT_BASE_CTL 64
135
136#define IPT_SO_SET_REPLACE (IPT_BASE_CTL)
137#define IPT_SO_SET_ADD_COUNTERS (IPT_BASE_CTL + 1)
138#define IPT_SO_SET_MAX IPT_SO_SET_ADD_COUNTERS
139
140#define IPT_SO_GET_INFO (IPT_BASE_CTL)
141#define IPT_SO_GET_ENTRIES (IPT_BASE_CTL + 1)
142#define IPT_SO_GET_REVISION_MATCH (IPT_BASE_CTL + 2)
143#define IPT_SO_GET_REVISION_TARGET (IPT_BASE_CTL + 3)
144#define IPT_SO_GET_MAX IPT_SO_GET_REVISION_TARGET
145
146
147struct ipt_icmp {
148 __u8 type;
149 __u8 code[2];
150 __u8 invflags;
151};
152
153
154#define IPT_ICMP_INV 0x01
155
156
157struct ipt_getinfo {
158
159 char name[XT_TABLE_MAXNAMELEN];
160
161
162
163 unsigned int valid_hooks;
164
165
166 unsigned int hook_entry[NF_INET_NUMHOOKS];
167
168
169 unsigned int underflow[NF_INET_NUMHOOKS];
170
171
172 unsigned int num_entries;
173
174
175 unsigned int size;
176};
177
178
179struct ipt_replace {
180
181 char name[XT_TABLE_MAXNAMELEN];
182
183
184
185 unsigned int valid_hooks;
186
187
188 unsigned int num_entries;
189
190
191 unsigned int size;
192
193
194 unsigned int hook_entry[NF_INET_NUMHOOKS];
195
196
197 unsigned int underflow[NF_INET_NUMHOOKS];
198
199
200
201 unsigned int num_counters;
202
203 struct xt_counters __user *counters;
204
205
206 struct ipt_entry entries[0];
207};
208
209
210struct ipt_get_entries {
211
212 char name[XT_TABLE_MAXNAMELEN];
213
214
215 unsigned int size;
216
217
218 struct ipt_entry entrytable[0];
219};
220
221
222static __inline__ struct xt_entry_target *
223ipt_get_target(struct ipt_entry *e)
224{
225 return (void *)e + e->target_offset;
226}
227
228
229
230
231#endif
232