Reapply SNAT/MASQUERADE rules on firewall reloads

[project/firewall3.git] / iptables.h

diff --git a/iptables.h b/iptables.h
index 05a1c72..96d71bf 100644 (file)
--- a/iptables.h
+++ b/iptables.h
@@ -23,13 +23,14 @@
 #include <libiptc/libip6tc.h>
 #include <xtables.h>
 
+#include <dlfcn.h>
 #include <unistd.h>
 #include <getopt.h>
 #include <sys/utsname.h>
 
 #include "options.h"
 
-
+/* xtables interface */
 #if (XTABLES_VERSION_CODE == 10)
 # include "xtables-10.h"
 #elif (XTABLES_VERSION_CODE == 5)
@@ -38,9 +39,6 @@
 # error "Unsupported xtables version"
 #endif
 
-extern struct xtables_match *xtables_pending_matches;
-extern struct xtables_target *xtables_pending_targets;
-
 /* libext.a interface */
 #define FW3_IPT_MODULES                        \
        __ipt_module(comment)           \
@@ -66,11 +64,18 @@ extern struct xtables_target *xtables_pending_targets;
        __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
 
@@ -83,6 +88,9 @@ struct fw3_ipt_handle {
        enum fw3_family family;
        enum fw3_table table;
        void *handle;
+
+       int libc;
+       void **libv;
 };
 
 struct fw3_ipt_rule {
@@ -109,8 +117,9 @@ struct fw3_ipt_handle *fw3_ipt_open(enum fw3_family family,
 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, ...);
 
@@ -118,6 +127,8 @@ void fw3_ipt_flush(struct fw3_ipt_handle *h);
 
 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);
@@ -137,8 +148,7 @@ void fw3_ipt_rule_icmptype(struct fw3_ipt_rule *r, struct fw3_icmptype *icmp);
 
 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);
 
@@ -158,7 +168,14 @@ struct fw3_ipt_rule * fw3_ipt_rule_create(struct fw3_ipt_handle *handle,
                                           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, ...)