4 #define XT_FUNCTION_MAXNAMELEN 30
5 #define XT_TABLE_MAXNAMELEN 32
13 /* Used by userspace */
14 char name[XT_FUNCTION_MAXNAMELEN-1];
21 /* Used inside the kernel */
22 struct xt_match *match;
29 unsigned char data[0];
32 struct xt_entry_target
36 u_int16_t target_size;
38 /* Used by userspace */
39 char name[XT_FUNCTION_MAXNAMELEN-1];
44 u_int16_t target_size;
46 /* Used inside the kernel */
47 struct xt_target *target;
51 u_int16_t target_size;
54 unsigned char data[0];
57 #define XT_TARGET_INIT(__name, __size) \
60 .target_size = XT_ALIGN(__size), \
65 struct xt_standard_target
67 struct xt_entry_target target;
71 /* The argument to IPT_SO_GET_REVISION_*. Returns highest revision
72 * kernel supports, if >= revision. */
73 struct xt_get_revision
75 char name[XT_FUNCTION_MAXNAMELEN-1];
80 /* CONTINUE verdict for targets */
81 #define XT_CONTINUE 0xFFFFFFFF
83 /* For standard target */
84 #define XT_RETURN (-NF_REPEAT - 1)
86 /* this is a dummy structure to find out the alignment requirement for a struct
87 * containing all the fundamental data types that are used in ipt_entry,
88 * ip6t_entry and arpt_entry. This sucks, and it is a hack. It will be my
89 * personal pleasure to remove it -HW
99 #define XT_ALIGN(s) (((s) + (__alignof__(struct _xt_align)-1)) \
100 & ~(__alignof__(struct _xt_align)-1))
102 /* Standard return verdict, or do jump. */
103 #define XT_STANDARD_TARGET ""
105 #define XT_ERROR_TARGET "ERROR"
107 #define SET_COUNTER(c,b,p) do { (c).bcnt = (b); (c).pcnt = (p); } while(0)
108 #define ADD_COUNTER(c,b,p) do { (c).bcnt += (b); (c).pcnt += (p); } while(0)
112 u_int64_t pcnt, bcnt; /* Packet and byte counters */
115 /* The argument to IPT_SO_ADD_COUNTERS. */
116 struct xt_counters_info
119 char name[XT_TABLE_MAXNAMELEN];
121 unsigned int num_counters;
123 /* The counters (actually `number' of these). */
124 struct xt_counters counters[0];
127 #define XT_INV_PROTO 0x40 /* Invert the sense of PROTO. */
129 /* fn returns 0 to continue iteration */
130 #define XT_MATCH_ITERATE(type, e, fn, args...) \
134 struct xt_entry_match *__m; \
136 for (__i = sizeof(type); \
137 __i < (e)->target_offset; \
138 __i += __m->u.match_size) { \
139 __m = (void *)e + __i; \
141 __ret = fn(__m , ## args); \
148 /* fn returns 0 to continue iteration */
149 #define XT_ENTRY_ITERATE_CONTINUE(type, entries, size, n, fn, args...) \
151 unsigned int __i, __n; \
155 for (__i = 0, __n = 0; __i < (size); \
156 __i += __entry->next_offset, __n++) { \
157 __entry = (void *)(entries) + __i; \
161 __ret = fn(__entry , ## args); \
168 /* fn returns 0 to continue iteration */
169 #define XT_ENTRY_ITERATE(type, entries, size, fn, args...) \
170 XT_ENTRY_ITERATE_CONTINUE(type, entries, size, 0, fn, args)
173 #endif /* _X_TABLES_H */