1 #ifndef _IPTABLES_USER_H
2 #define _IPTABLES_USER_H
4 #include "iptables_common.h"
5 #include "libiptc/libiptc.h"
8 #define IPT_LIB_DIR "/usr/local/lib/iptables"
12 #define IPPROTO_SCTP 132
15 #ifndef IPT_SO_GET_REVISION_MATCH /* Old kernel source. */
16 #define IPT_SO_GET_REVISION_MATCH (IPT_BASE_CTL + 2)
17 #define IPT_SO_GET_REVISION_TARGET (IPT_BASE_CTL + 3)
19 struct ipt_get_revision
21 char name[IPT_FUNCTION_MAXNAMELEN-1];
25 #endif /* IPT_SO_GET_REVISION_MATCH Old kernel source */
27 struct iptables_rule_match
29 struct iptables_rule_match *next;
31 struct iptables_match *match;
34 /* Include file for additions: new matches and targets. */
37 struct iptables_match *next;
41 /* Revision of match (0 by default). */
46 /* Size of match data. */
49 /* Size of match data relevent for userspace comparison purposes */
52 /* Function which prints out usage message. */
55 /* Initialize the match. */
56 void (*init)(struct ipt_entry_match *m, unsigned int *nfcache);
58 /* Function which parses command options; returns true if it
60 int (*parse)(int c, char **argv, int invert, unsigned int *flags,
61 const struct ipt_entry *entry,
62 unsigned int *nfcache,
63 struct ipt_entry_match **match);
65 /* Final check; exit if not ok. */
66 void (*final_check)(unsigned int flags);
68 /* Prints out the match iff non-NULL: put space at end */
69 void (*print)(const struct ipt_ip *ip,
70 const struct ipt_entry_match *match, int numeric);
72 /* Saves the match info in parsable form to stdout. */
73 void (*save)(const struct ipt_ip *ip,
74 const struct ipt_entry_match *match);
76 /* Pointer to list of extra command-line options */
77 const struct option *extra_opts;
79 /* Ignore these men behind the curtain: */
80 unsigned int option_offset;
81 struct ipt_entry_match *m;
84 unsigned int loaded; /* simulate loading so options are merged properly */
88 struct iptables_target
90 struct iptables_target *next;
94 /* Revision of target (0 by default). */
99 /* Size of target data. */
102 /* Size of target data relevent for userspace comparison purposes */
103 size_t userspacesize;
105 /* Function which prints out usage message. */
108 /* Initialize the target. */
109 void (*init)(struct ipt_entry_target *t, unsigned int *nfcache);
111 /* Function which parses command options; returns true if it
113 int (*parse)(int c, char **argv, int invert, unsigned int *flags,
114 const struct ipt_entry *entry,
115 struct ipt_entry_target **target);
117 /* Final check; exit if not ok. */
118 void (*final_check)(unsigned int flags);
120 /* Prints out the target iff non-NULL: put space at end */
121 void (*print)(const struct ipt_ip *ip,
122 const struct ipt_entry_target *target, int numeric);
124 /* Saves the targinfo in parsable form to stdout. */
125 void (*save)(const struct ipt_ip *ip,
126 const struct ipt_entry_target *target);
128 /* Pointer to list of extra command-line options */
129 struct option *extra_opts;
131 /* Ignore these men behind the curtain: */
132 unsigned int option_offset;
133 struct ipt_entry_target *t;
136 #ifdef NO_SHARED_LIBS
137 unsigned int loaded; /* simulate loading so options are merged properly */
143 /* Your shared library should call one of these. */
144 extern void register_match(struct iptables_match *me);
145 extern void register_target(struct iptables_target *me);
147 extern struct in_addr *dotted_to_addr(const char *dotted);
148 extern char *addr_to_dotted(const struct in_addr *addrp);
149 extern char *addr_to_anyname(const struct in_addr *addr);
150 extern char *mask_to_dotted(const struct in_addr *mask);
152 extern void parse_hostnetworkmask(const char *name, struct in_addr **addrpp,
153 struct in_addr *maskp, unsigned int *naddrs);
154 extern u_int16_t parse_protocol(const char *s);
156 extern int do_command(int argc, char *argv[], char **table,
157 iptc_handle_t *handle);
158 /* Keeping track of external matches and targets: linked lists. */
159 extern struct iptables_match *iptables_matches;
160 extern struct iptables_target *iptables_targets;
168 extern struct iptables_target *find_target(const char *name, enum ipt_tryload);
169 extern struct iptables_match *find_match(const char *name, enum ipt_tryload, struct iptables_rule_match **match);
171 extern int delete_chain(const ipt_chainlabel chain, int verbose,
172 iptc_handle_t *handle);
173 extern int flush_entries(const ipt_chainlabel chain, int verbose,
174 iptc_handle_t *handle);
175 extern int for_each_chain(int (*fn)(const ipt_chainlabel, int, iptc_handle_t *),
176 int verbose, int builtinstoo, iptc_handle_t *handle);
177 #endif /*_IPTABLES_USER_H*/