ip6tables.h revision 8a5eb6dd67e5fac875da51742d9a954c0ff5d92f 
1#ifndef _IP6TABLES_USER_H
2#define _IP6TABLES_USER_H
3
4#include "iptables_common.h"
5#include "libiptc/libip6tc.h"
6
7/* Include file for additions: new matches and targets. */
8struct ip6tables_match
9{
10	struct ip6tables_match *next;
11
12	ip6t_chainlabel name;
13
14	const char *version;
15
16	/* Size of match data. */
17	size_t size;
18
19	/* Size of match data relevent for userspace comparison purposes */
20	size_t userspacesize;
21
22	/* Function which prints out usage message. */
23	void (*help)(void);
24
25	/* Initialize the match. */
26	void (*init)(struct ip6t_entry_match *m, unsigned int *nfcache);
27
28	/* Function which parses command options; returns true if it
29	   ate an option */
30	int (*parse)(int c, char **argv, int invert, unsigned int *flags,
31		     const struct ip6t_entry *entry,
32		     unsigned int *nfcache,
33		     struct ip6t_entry_match **match);
34
35	/* Final check; exit if not ok. */
36	void (*final_check)(unsigned int flags);
37
38	/* Prints out the match iff non-NULL: put space at end */
39	void (*print)(const struct ip6t_ip6 *ip,
40		      const struct ip6t_entry_match *match, int numeric);
41
42	/* Saves the union ipt_matchinfo in parsable form to stdout. */
43	void (*save)(const struct ip6t_ip6 *ip,
44		     const struct ip6t_entry_match *match);
45
46	/* Pointer to list of extra command-line options */
47	const struct option *extra_opts;
48
49	/* Ignore these men behind the curtain: */
50	unsigned int option_offset;
51	struct ip6t_entry_match *m;
52	unsigned int mflags;
53	unsigned int used;
54};
55
56struct ip6tables_target
57{
58	struct ip6tables_target *next;
59
60	ip6t_chainlabel name;
61
62	const char *version;
63
64	/* Size of target data. */
65	size_t size;
66
67	/* Size of target data relevent for userspace comparison purposes */
68	size_t userspacesize;
69
70	/* Function which prints out usage message. */
71	void (*help)(void);
72
73	/* Initialize the target. */
74	void (*init)(struct ip6t_entry_target *t, unsigned int *nfcache);
75
76	/* Function which parses command options; returns true if it
77	   ate an option */
78	int (*parse)(int c, char **argv, int invert, unsigned int *flags,
79		     const struct ip6t_entry *entry,
80		     struct ip6t_entry_target **target);
81
82	/* Final check; exit if not ok. */
83	void (*final_check)(unsigned int flags);
84
85	/* Prints out the target iff non-NULL: put space at end */
86	void (*print)(const struct ip6t_ip6 *ip,
87		      const struct ip6t_entry_target *target, int numeric);
88
89	/* Saves the targinfo in parsable form to stdout. */
90	void (*save)(const struct ip6t_ip6 *ip,
91		     const struct ip6t_entry_target *target);
92
93	/* Pointer to list of extra command-line options */
94	struct option *extra_opts;
95
96	/* Ignore these men behind the curtain: */
97	unsigned int option_offset;
98	struct ip6t_entry_target *t;
99	unsigned int tflags;
100	unsigned int used;
101};
102
103/* Your shared library should call one of these. */
104extern void register_match6(struct ip6tables_match *me);
105extern void register_target6(struct ip6tables_target *me);
106
107extern int do_command6(int argc, char *argv[], char **table,
108		       ip6tc_handle_t *handle);
109/* Keeping track of external matches and targets: linked lists. */
110extern struct ip6tables_match *ip6tables_matches;
111extern struct ip6tables_target *ip6tables_targets;
112
113enum ip6t_tryload {
114	DONT_LOAD,
115	TRY_LOAD,
116	LOAD_MUST_SUCCEED
117};
118
119extern struct ip6tables_target *find_target(const char *name, enum ip6t_tryload);
120extern struct ip6tables_match *find_match(const char *name, enum ip6t_tryload);
121
122extern int for_each_chain(int (*fn)(const ip6t_chainlabel, int, ip6tc_handle_t *), int verbose, int builtinstoo, ip6tc_handle_t *handle);
123extern int flush_entries(const ip6t_chainlabel chain, int verbose, ip6tc_handle_t *handle);
124extern int delete_chain(const ip6t_chainlabel chain, int verbose, ip6tc_handle_t *handle);
125
126#endif /*_IP6TABLES_USER_H*/
127