#include <libiptc/libip6tc.h>
#include <xtables.h>
+#include <dlfcn.h>
#include <unistd.h>
#include <getopt.h>
#include <sys/utsname.h>
#include "options.h"
-
-extern struct xtables_match *xtables_pending_matches;
-extern struct xtables_target *xtables_pending_targets;
+/* xtables interface */
+#if (XTABLES_VERSION_CODE == 10)
+# include "xtables-10.h"
+#elif (XTABLES_VERSION_CODE == 5)
+# include "xtables-5.h"
+#else
+# error "Unsupported xtables version"
+#endif
/* libext.a interface */
-void libip6t_icmp6_init(void);
-void libip6t_LOG_init(void);
-void libipt_DNAT_init(void);
-void libipt_icmp_init(void);
-void libipt_LOG_init(void);
-void libipt_MASQUERADE_init(void);
-void libipt_REDIRECT_init(void);
-void libipt_REJECT_init(void);
-void libipt_SNAT_init(void);
-void libxt_comment_init(void);
-void libxt_conntrack_init(void);
-void libxt_CT_init(void);
-void libxt_limit_init(void);
-void libxt_mac_init(void);
-void libxt_mark_init(void);
-void libxt_MARK_init(void);
-void libxt_set_init(void);
-void libxt_SET_init(void);
-void libxt_standard_init(void);
-void libxt_TCPMSS_init(void);
-void libxt_tcp_init(void);
-void libxt_time_init(void);
-void libxt_udp_init(void);
+#define FW3_IPT_MODULES \
+ __ipt_module(comment) \
+ __ipt_module(conntrack) \
+ __ipt_module(icmp) \
+ __ipt_module(icmp6) \
+ __ipt_module(limit) \
+ __ipt_module(connlimit) \
+ __ipt_module(mac) \
+ __ipt_module(mark) \
+ __ipt_module(set) \
+ __ipt_module(standard) \
+ __ipt_module(tcp) \
+ __ipt_module(time) \
+ __ipt_module(udp) \
+ __ipt_module(CT) \
+ __ipt_module(DNAT) \
+ __ipt_module(LOG) \
+ __ipt_module(MARK) \
+ __ipt_module(MASQUERADE) \
+ __ipt_module(REDIRECT) \
+ __ipt_module(REJECT) \
+ __ipt_module(SET) \
+ __ipt_module(SNAT) \
+ __ipt_module(TCPMSS)
+
+#ifdef DISABLE_IPV6
+#undef __ipt_module
+#define __ipt_module(x) \
+ extern void libxt_##x##_init(void) __attribute__((weak)); \
+ extern void libipt_##x##_init(void) __attribute__((weak));
+#else
+#undef __ipt_module
+#define __ipt_module(x) \
+ extern void libxt_##x##_init(void) __attribute__((weak)); \
+ extern void libipt_##x##_init(void) __attribute__((weak)); \
+ extern void libip6t_##x##_init(void) __attribute__((weak));
+#endif
+
+FW3_IPT_MODULES
+
/* Required by certain extensions like SNAT and DNAT */
extern int kernel_version;
struct fw3_ipt_handle {
enum fw3_family family;
enum fw3_table table;
- struct xtc_handle *handle;
+ void *handle;
+
+ int libc;
+ void **libv;
};
struct fw3_ipt_rule {
void fw3_ipt_set_policy(struct fw3_ipt_handle *h, const char *chain,
enum fw3_flag policy);
+
+void fw3_ipt_flush_chain(struct fw3_ipt_handle *h, const char *chain);
void fw3_ipt_delete_chain(struct fw3_ipt_handle *h, const char *chain);
-void fw3_ipt_delete_rules(struct fw3_ipt_handle *h, const char *target);
void fw3_ipt_create_chain(struct fw3_ipt_handle *h, const char *fmt, ...);
void fw3_ipt_commit(struct fw3_ipt_handle *h);
+void fw3_ipt_close(struct fw3_ipt_handle *h);
+
struct fw3_ipt_rule *fw3_ipt_rule_new(struct fw3_ipt_handle *h);
void fw3_ipt_rule_proto(struct fw3_ipt_rule *r, struct fw3_protocol *proto);
void fw3_ipt_rule_limit(struct fw3_ipt_rule *r, struct fw3_limit *limit);
-void fw3_ipt_rule_ipset(struct fw3_ipt_rule *r, struct fw3_ipset *ipset,
- bool invert);
+void fw3_ipt_rule_ipset(struct fw3_ipt_rule *r, struct fw3_setmatch *match);
void fw3_ipt_rule_time(struct fw3_ipt_rule *r, struct fw3_time *time);
struct fw3_address *src,
struct fw3_address *dest);
-void fw3_ipt_rule_append(struct fw3_ipt_rule *r, const char *fmt, ...);
+void __fw3_ipt_rule_append(struct fw3_ipt_rule *r, bool repl,
+ const char *fmt, ...);
+
+#define fw3_ipt_rule_append(rule, ...) \
+ __fw3_ipt_rule_append(rule, false, __VA_ARGS__)
+
+#define fw3_ipt_rule_replace(rule, ...) \
+ __fw3_ipt_rule_append(rule, true, __VA_ARGS__)
static inline void
fw3_ipt_rule_target(struct fw3_ipt_rule *r, const char *fmt, ...)