firewall3: check the return value of fw3_parse_options()

[project/firewall3.git] / iptables.h

diff --git a/iptables.h b/iptables.h
index 31d3268..8a4ce8f 100644 (file)
--- a/iptables.h
+++ b/iptables.h
@@ -1,7 +1,7 @@
 /*
  * firewall3 - 3rd OpenWrt UCI firewall implementation
  *
- *   Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
+ *   Copyright (C) 2013 Jo-Philipp Wich <jo@mein.io>
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -19,24 +19,16 @@
 #ifndef __FW3_IPTABLES_H
 #define __FW3_IPTABLES_H
 
-#include <libiptc/libiptc.h>
-#include <libiptc/libip6tc.h>
-#include <xtables.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;
-
-/* libext.a interface */
-void init_extensions(void);
-void init_extensions4(void);
-void init_extensions6(void);
+#ifndef DISABLE_STATIC_EXTENSIONS
+/* libipt*ext.so interfaces */
+extern void init_extensions(void);
+extern void init_extensions4(void);
+extern void init_extensions6(void);
+#else
+static inline void init_extensions(void) { }
+static inline void init_extensions4(void) { }
+static inline void init_extensions6(void) { }
+#endif
 
 /* Required by certain extensions like SNAT and DNAT */
 extern int kernel_version;
@@ -45,26 +37,10 @@ void get_kernel_version(void);
 struct fw3_ipt_handle {
        enum fw3_family family;
        enum fw3_table table;
-       struct xtc_handle *handle;
+       void *handle;
 };
 
-struct fw3_ipt_rule {
-       struct fw3_ipt_handle *h;
-
-       union {
-               struct ipt_entry e;
-               struct ip6t_entry e6;
-       };
-
-       struct xtables_rule_match *matches;
-       struct xtables_target *target;
-
-       int argc;
-       char **argv;
-
-       uint32_t protocol;
-       bool protocol_loaded;
-};
+struct fw3_ipt_rule;
 
 struct fw3_ipt_handle *fw3_ipt_open(enum fw3_family family,
                                     enum fw3_table table);
@@ -72,29 +48,22 @@ 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_delete_chain(struct fw3_ipt_handle *h, const char *chain);
-void fw3_ipt_delete_rules(struct fw3_ipt_handle *h, const char *target);
 
-static inline void
-fw3_ipt_create_chain(struct fw3_ipt_handle *h, const char *fmt, ...)
-{
-       char buf[32];
-       va_list ap;
+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);
 
-       va_start(ap, fmt);
-       vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
-       va_end(ap);
+void fw3_ipt_delete_id_rules(struct fw3_ipt_handle *h, const char *chain);
 
-       if (fw3_pr_debug)
-               printf("-N %s\n", buf);
-
-       iptc_create_chain(buf, h->handle);
-}
+void fw3_ipt_create_chain(struct fw3_ipt_handle *h, const char *fmt, ...);
 
 void fw3_ipt_flush(struct fw3_ipt_handle *h);
 
+void fw3_ipt_gc(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);
@@ -108,14 +77,15 @@ void fw3_ipt_rule_src_dest(struct fw3_ipt_rule *r,
 void fw3_ipt_rule_sport_dport(struct fw3_ipt_rule *r,
                               struct fw3_port *sp, struct fw3_port *dp);
 
+void fw3_ipt_rule_device(struct fw3_ipt_rule *r, const char *device, bool out);
+
 void fw3_ipt_rule_mac(struct fw3_ipt_rule *r, struct fw3_mac *mac);
 
 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);
 
@@ -135,7 +105,14 @@ 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, ...)