1#ifndef _IP6TABLES_USER_H
2#define _IP6TABLES_USER_H
3
4#include "iptables_common.h"
5#include "libiptc/libip6tc.h"
6
7struct ip6tables_rule_match
8{
9	struct ip6tables_rule_match *next;
10
11	struct ip6tables_match *match;
12};
13
14/* Include file for additions: new matches and targets. */
15struct ip6tables_match
16{
17	struct ip6tables_match *next;
18
19	ip6t_chainlabel name;
20
21	const char *version;
22
23	/* Size of match data. */
24	size_t size;
25
26	/* Size of match data relevent for userspace comparison purposes */
27	size_t userspacesize;
28
29	/* Function which prints out usage message. */
30	void (*help)(void);
31
32	/* Initialize the match. */
33	void (*init)(struct ip6t_entry_match *m, unsigned int *nfcache);
34
35	/* Function which parses command options; returns true if it
36	   ate an option */
37	int (*parse)(int c, char **argv, int invert, unsigned int *flags,
38		     const struct ip6t_entry *entry,
39		     unsigned int *nfcache,
40		     struct ip6t_entry_match **match);
41
42	/* Final check; exit if not ok. */
43	void (*final_check)(unsigned int flags);
44
45	/* Prints out the match iff non-NULL: put space at end */
46	void (*print)(const struct ip6t_ip6 *ip,
47		      const struct ip6t_entry_match *match, int numeric);
48
49	/* Saves the union ipt_matchinfo in parsable form to stdout. */
50	void (*save)(const struct ip6t_ip6 *ip,
51		     const struct ip6t_entry_match *match);
52
53	/* Pointer to list of extra command-line options */
54	const struct option *extra_opts;
55
56	/* Ignore these men behind the curtain: */
57	unsigned int option_offset;
58	struct ip6t_entry_match *m;
59	unsigned int mflags;
60#ifdef NO_SHARED_LIBS
61	unsigned int loaded; /* simulate loading so options are merged properly */
62#endif
63};
64
65struct ip6tables_target
66{
67	struct ip6tables_target *next;
68
69	ip6t_chainlabel name;
70
71	const char *version;
72
73	/* Size of target data. */
74	size_t size;
75
76	/* Size of target data relevent for userspace comparison purposes */
77	size_t userspacesize;
78
79	/* Function which prints out usage message. */
80	void (*help)(void);
81
82	/* Initialize the target. */
83	void (*init)(struct ip6t_entry_target *t, unsigned int *nfcache);
84
85	/* Function which parses command options; returns true if it
86	   ate an option */
87	int (*parse)(int c, char **argv, int invert, unsigned int *flags,
88		     const struct ip6t_entry *entry,
89		     struct ip6t_entry_target **target);
90
91	/* Final check; exit if not ok. */
92	void (*final_check)(unsigned int flags);
93
94	/* Prints out the target iff non-NULL: put space at end */
95	void (*print)(const struct ip6t_ip6 *ip,
96		      const struct ip6t_entry_target *target, int numeric);
97
98	/* Saves the targinfo in parsable form to stdout. */
99	void (*save)(const struct ip6t_ip6 *ip,
100		     const struct ip6t_entry_target *target);
101
102	/* Pointer to list of extra command-line options */
103	struct option *extra_opts;
104
105	/* Ignore these men behind the curtain: */
106	unsigned int option_offset;
107	struct ip6t_entry_target *t;
108	unsigned int tflags;
109	unsigned int used;
110#ifdef NO_SHARED_LIBS
111	unsigned int loaded; /* simulate loading so options are merged properly */
112#endif
113};
114
115extern int line;
116
117/* Your shared library should call one of these. */
118extern void register_match6(struct ip6tables_match *me);
119extern void register_target6(struct ip6tables_target *me);
120
121extern int do_command6(int argc, char *argv[], char **table,
122		       ip6tc_handle_t *handle);
123/* Keeping track of external matches and targets: linked lists. */
124extern struct ip6tables_match *ip6tables_matches;
125extern struct ip6tables_target *ip6tables_targets;
126
127enum ip6t_tryload {
128	DONT_LOAD,
129	TRY_LOAD,
130	LOAD_MUST_SUCCEED
131};
132
133extern struct ip6tables_target *find_target(const char *name, enum ip6t_tryload);
134extern struct ip6tables_match *find_match(const char *name, enum ip6t_tryload, struct ip6tables_rule_match **match);
135
136extern int for_each_chain(int (*fn)(const ip6t_chainlabel, int, ip6tc_handle_t *), int verbose, int builtinstoo, ip6tc_handle_t *handle);
137extern int flush_entries(const ip6t_chainlabel chain, int verbose, ip6tc_handle_t *handle);
138extern int delete_chain(const ip6t_chainlabel chain, int verbose, ip6tc_handle_t *handle);
139extern int ip6tables_insmod(const char *modname, const char *modprobe);
140
141#endif /*_IP6TABLES_USER_H*/
142