firewall3: add UBUS support for redirect sections
[project/firewall3.git] / xtables-10.h
1 /*
2  * firewall3 - 3rd OpenWrt UCI firewall implementation
3  *
4  *   Copyright (C) 2013 Jo-Philipp Wich <jo@mein.io>
5  *
6  * Permission to use, copy, modify, and/or distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18
19 #ifndef __FW3_XTABLES_10_H
20 #define __FW3_XTABLES_10_H
21
22 extern struct xtables_match *xtables_pending_matches;
23 extern struct xtables_target *xtables_pending_targets;
24
25 static inline void
26 fw3_xt_reset(void)
27 {
28         xtables_matches = NULL;
29         xtables_targets = NULL;
30
31         xtables_pending_matches = NULL;
32         xtables_pending_targets = NULL;
33 }
34
35
36 static inline const char *
37 fw3_xt_get_match_name(struct xtables_match *m)
38 {
39     if (m->alias)
40         return m->alias(m->m);
41
42     return m->m->u.user.name;
43 }
44
45 static inline void
46 fw3_xt_set_match_name(struct xtables_match *m)
47 {
48     if (m->real_name)
49         strcpy(m->m->u.user.name, m->real_name);
50     else
51         strcpy(m->m->u.user.name, m->name);
52 }
53
54 static inline bool
55 fw3_xt_has_match_parse(struct xtables_match *m)
56 {
57     return (m->parse || m->x6_parse);
58 }
59
60 static inline void
61 fw3_xt_free_match_udata(struct xtables_match *m)
62 {
63     if (m->udata_size)
64     {
65         free(m->udata);
66         m->udata = fw3_alloc(m->udata_size);
67     }
68 }
69
70 static inline void
71 fw3_xt_merge_match_options(struct xtables_globals *g, struct xtables_match *m)
72 {
73         if (m->x6_options)
74                 g->opts = xtables_options_xfrm(g->orig_opts, g->opts,
75                                                                            m->x6_options, &m->option_offset);
76
77         if (m->extra_opts)
78                 g->opts = xtables_merge_options(g->orig_opts, g->opts,
79                                                                                 m->extra_opts, &m->option_offset);
80 }
81
82
83 static inline const char *
84 fw3_xt_get_target_name(struct xtables_target *t)
85 {
86     if (t->alias)
87         return t->alias(t->t);
88
89     return t->t->u.user.name;
90 }
91
92 static inline void
93 fw3_xt_set_target_name(struct xtables_target *t, const char *name)
94 {
95     if (t->real_name)
96         strcpy(t->t->u.user.name, t->real_name);
97     else
98         strcpy(t->t->u.user.name, name);
99 }
100
101 static inline bool
102 fw3_xt_has_target_parse(struct xtables_target *t)
103 {
104     return (t->parse || t->x6_parse);
105 }
106
107 static inline void
108 fw3_xt_free_target_udata(struct xtables_target *t)
109 {
110     if (t->udata_size)
111     {
112         free(t->udata);
113         t->udata = fw3_alloc(t->udata_size);
114     }
115 }
116
117 static inline void
118 fw3_xt_merge_target_options(struct xtables_globals *g, struct xtables_target *t)
119 {
120         if (t->x6_options)
121                 g->opts = xtables_options_xfrm(g->orig_opts, g->opts,
122                                                t->x6_options, &t->option_offset);
123         else
124                 g->opts = xtables_merge_options(g->orig_opts, g->opts,
125                                                 t->extra_opts, &t->option_offset);
126 }
127
128 static inline void
129 fw3_xt_print_matches(void *ip, struct xtables_rule_match *matches)
130 {
131         struct xtables_rule_match *rm;
132         struct xtables_match *m;
133
134         for (rm = matches; rm; rm = rm->next)
135         {
136                 m = rm->match;
137                 printf(" -m %s", fw3_xt_get_match_name(m));
138
139                 if (m->save)
140                         m->save(ip, m->m);
141         }
142 }
143
144 static inline void
145 fw3_xt_print_target(void *ip, struct xtables_target *target)
146 {
147         if (target)
148         {
149                 printf(" -j %s", fw3_xt_get_target_name(target));
150
151                 if (target->save)
152                         target->save(ip, target->t);
153         }
154 }
155
156 #endif