2 * firewall3 - 3rd OpenWrt UCI firewall implementation
4 * Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
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.
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.
19 #ifndef __FW3_IPTABLES_H
20 #define __FW3_IPTABLES_H
22 #include <libiptc/libiptc.h>
23 #include <libiptc/libip6tc.h>
28 #include <sys/utsname.h>
33 extern struct xtables_match *xtables_pending_matches;
34 extern struct xtables_target *xtables_pending_targets;
36 /* libext.a interface */
37 void libip6t_icmp6_init(void);
38 void libip6t_LOG_init(void);
39 void libip6t_REJECT_init(void);
40 void libipt_DNAT_init(void);
41 void libipt_icmp_init(void);
42 void libipt_LOG_init(void);
43 void libipt_MASQUERADE_init(void);
44 void libipt_REDIRECT_init(void);
45 void libipt_REJECT_init(void);
46 void libipt_SNAT_init(void);
47 void libxt_comment_init(void);
48 void libxt_conntrack_init(void);
49 void libxt_CT_init(void);
50 void libxt_limit_init(void);
51 void libxt_mac_init(void);
52 void libxt_mark_init(void);
53 void libxt_MARK_init(void);
54 void libxt_set_init(void);
55 void libxt_SET_init(void);
56 void libxt_standard_init(void);
57 void libxt_TCPMSS_init(void);
58 void libxt_tcp_init(void);
59 void libxt_time_init(void);
60 void libxt_udp_init(void);
62 /* Required by certain extensions like SNAT and DNAT */
63 extern int kernel_version;
64 void get_kernel_version(void);
66 struct fw3_ipt_handle {
67 enum fw3_family family;
69 struct xtc_handle *handle;
73 struct fw3_ipt_handle *h;
80 struct xtables_rule_match *matches;
81 struct xtables_target *target;
90 struct fw3_ipt_handle *fw3_ipt_open(enum fw3_family family,
91 enum fw3_table table);
93 void fw3_ipt_set_policy(struct fw3_ipt_handle *h, const char *chain,
94 enum fw3_flag policy);
96 void fw3_ipt_delete_chain(struct fw3_ipt_handle *h, const char *chain);
97 void fw3_ipt_delete_rules(struct fw3_ipt_handle *h, const char *target);
99 void fw3_ipt_create_chain(struct fw3_ipt_handle *h, const char *fmt, ...);
101 void fw3_ipt_flush(struct fw3_ipt_handle *h);
103 void fw3_ipt_commit(struct fw3_ipt_handle *h);
105 struct fw3_ipt_rule *fw3_ipt_rule_new(struct fw3_ipt_handle *h);
107 void fw3_ipt_rule_proto(struct fw3_ipt_rule *r, struct fw3_protocol *proto);
109 void fw3_ipt_rule_in_out(struct fw3_ipt_rule *r,
110 struct fw3_device *in, struct fw3_device *out);
112 void fw3_ipt_rule_src_dest(struct fw3_ipt_rule *r,
113 struct fw3_address *src, struct fw3_address *dest);
115 void fw3_ipt_rule_sport_dport(struct fw3_ipt_rule *r,
116 struct fw3_port *sp, struct fw3_port *dp);
118 void fw3_ipt_rule_mac(struct fw3_ipt_rule *r, struct fw3_mac *mac);
120 void fw3_ipt_rule_icmptype(struct fw3_ipt_rule *r, struct fw3_icmptype *icmp);
122 void fw3_ipt_rule_limit(struct fw3_ipt_rule *r, struct fw3_limit *limit);
124 void fw3_ipt_rule_ipset(struct fw3_ipt_rule *r, struct fw3_ipset *ipset,
127 void fw3_ipt_rule_time(struct fw3_ipt_rule *r, struct fw3_time *time);
129 void fw3_ipt_rule_mark(struct fw3_ipt_rule *r, struct fw3_mark *mark);
131 void fw3_ipt_rule_comment(struct fw3_ipt_rule *r, const char *fmt, ...);
133 void fw3_ipt_rule_extra(struct fw3_ipt_rule *r, const char *extra);
135 void fw3_ipt_rule_addarg(struct fw3_ipt_rule *r, bool inv,
136 const char *k, const char *v);
138 struct fw3_ipt_rule * fw3_ipt_rule_create(struct fw3_ipt_handle *handle,
139 struct fw3_protocol *proto,
140 struct fw3_device *in,
141 struct fw3_device *out,
142 struct fw3_address *src,
143 struct fw3_address *dest);
145 void fw3_ipt_rule_append(struct fw3_ipt_rule *r, const char *fmt, ...);
148 fw3_ipt_rule_target(struct fw3_ipt_rule *r, const char *fmt, ...)
154 vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
157 fw3_ipt_rule_addarg(r, false, "-j", buf);