ebtables: Convert to standalone buildcm-14.1cm-14.0

 * There is no need to create 20 shared libraries on an Android
   build. Convert to a standalone build to eliminate this noise.
 * Additionally, the scriptage in the Android makefile causes
   Ninja to regenerate it's configuration for every build. Fix it.
 * These files can be generated by the standard makefile as part
   of the "static" target.

Change-Id: I1de9f93caf563c10f49c72a884b4c96aaf5335e0

24 files changed, 503 insertions, 31 deletions

diff --git a/Android.mk b/Android.mk
index 02b9bee..c8f8c32 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1,6 +1,68 @@
-#Avoid building ebtables for emulator
-ifeq ($(call is-vendor-board-platform,QCOM),true)
-    include $(call all-subdir-makefiles)
-else
-    $(info "ebtables is disabled on this build")
-endif
+# BUILD libebtc.so
+
+LOCAL_PATH:= $(call my-dir)
+
+cflags := -O2 -g \
+    -DPROGNAME=\"ebtables\" \
+    -DPROGVERSION=\"2.0.10\" \
+    -DPROGDATE=\"December\ 2011\" \
+    -Wno-sign-compare -Wno-missing-field-initializers \
+    -Wno-ignored-qualifiers -Wno-unused-parameter \
+	-Wno-#pragma-messages
+
+extensions_src_files := \
+    extensions/ebt_802_3.c \
+    extensions/ebt_among.c \
+    extensions/ebt_arp.c \
+    extensions/ebt_arpreply.c \
+    extensions/ebt_ip.c \
+    extensions/ebt_ip6.c \
+    extensions/ebt_limit.c \
+    extensions/ebt_log.c \
+    extensions/ebt_mark.c \
+    extensions/ebt_mark_m.c \
+    extensions/ebt_nat.c \
+    extensions/ebt_nflog.c \
+    extensions/ebt_pkttype.c \
+    extensions/ebt_redirect.c \
+    extensions/ebt_standard.c \
+    extensions/ebt_stp.c \
+    extensions/ebt_ulog.c \
+    extensions/ebt_vlan.c \
+    extensions/ebtable_broute.c \
+    extensions/ebtable_filter.c \
+    extensions/ebtable_nat.c
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+    getethertype.c \
+    communication.c \
+    libebtc.c \
+    useful_functions.c \
+    ebtables.c \
+    $(extensions_src_files) \
+    ebtables-standalone.c
+
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
+LOCAL_C_INCLUDES += $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr/include
+LOCAL_ADDITIONAL_DEPENDENCIES := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr
+
+LOCAL_CFLAGS := $(cflags)
+LOCAL_LDFLAGS := -nostartfiles
+LOCAL_MODULE := ebtables
+
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_EXECUTABLE)
+
+
+#######dss_test_104##########
+include $(CLEAR_VARS)
+LOCAL_MODULE:= ethertypes
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_SRC_FILES := ethertypes
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)
+include $(BUILD_PREBUILT)
+
diff --git a/extensions/ebt_802_3.c b/extensions/ebt_802_3.c
index dd22eb2..2d84349 100644
--- a/extensions/ebt_802_3.c
+++ b/extensions/ebt_802_3.c
@@ -141,7 +141,7 @@ static struct ebt_u_match _802_3_match =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _802_3_init(void)
 {
 	ebt_register_match(&_802_3_match);
 }
diff --git a/extensions/ebt_among.c b/extensions/ebt_among.c
index f97d07e..2f78ad1 100644
--- a/extensions/ebt_among.c
+++ b/extensions/ebt_among.c
@@ -491,7 +491,7 @@ static struct ebt_u_match among_match = {
 	.extra_ops 	= opts,
 };
 
-void _init(void)
+void _among_init(void)
 {
 	ebt_register_match(&among_match);
 }
diff --git a/extensions/ebt_arp.c b/extensions/ebt_arp.c
index 64d337d..fd684ac 100644
--- a/extensions/ebt_arp.c
+++ b/extensions/ebt_arp.c
@@ -362,7 +362,7 @@ static struct ebt_u_match arp_match =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _arp_init(void)
 {
 	ebt_register_match(&arp_match);
 }
diff --git a/extensions/ebt_arpreply.c b/extensions/ebt_arpreply.c
index c3757f3..3757097 100644
--- a/extensions/ebt_arpreply.c
+++ b/extensions/ebt_arpreply.c
@@ -133,7 +133,7 @@ static struct ebt_u_target arpreply_target =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _arpreply_init(void)
 {
 	ebt_register_target(&arpreply_target);
 }
diff --git a/extensions/ebt_ip.c b/extensions/ebt_ip.c
index 4e0b7f0..86e9659 100644
--- a/extensions/ebt_ip.c
+++ b/extensions/ebt_ip.c
@@ -338,7 +338,7 @@ static struct ebt_u_match ip_match =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _ip_init(void)
 {
 	ebt_register_match(&ip_match);
 }
diff --git a/extensions/ebt_ip6.c b/extensions/ebt_ip6.c
index 0465e77..7e65d76 100644
--- a/extensions/ebt_ip6.c
+++ b/extensions/ebt_ip6.c
@@ -556,7 +556,7 @@ static struct ebt_u_match ip6_match =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _ip6_init(void)
 {
 	ebt_register_match(&ip6_match);
 }
diff --git a/extensions/ebt_limit.c b/extensions/ebt_limit.c
index ee40e5c..6a443e5 100644
--- a/extensions/ebt_limit.c
+++ b/extensions/ebt_limit.c
@@ -212,7 +212,7 @@ static struct ebt_u_match limit_match =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _limit_init(void)
 {
 	ebt_register_match(&limit_match);
 }
diff --git a/extensions/ebt_log.c b/extensions/ebt_log.c
index 1cf831a..053d73b 100644
--- a/extensions/ebt_log.c
+++ b/extensions/ebt_log.c
@@ -217,7 +217,7 @@ static struct ebt_u_watcher log_watcher =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _log_init(void)
 {
 	ebt_register_watcher(&log_watcher);
 }
diff --git a/extensions/ebt_mark.c b/extensions/ebt_mark.c
index 5776b1c..051e2e7 100644
--- a/extensions/ebt_mark.c
+++ b/extensions/ebt_mark.c
@@ -172,7 +172,7 @@ static struct ebt_u_target mark_target =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _mark_init(void)
 {
 	ebt_register_target(&mark_target);
 }
diff --git a/extensions/ebt_mark_m.c b/extensions/ebt_mark_m.c
index 2a259b0..3ef6651 100644
--- a/extensions/ebt_mark_m.c
+++ b/extensions/ebt_mark_m.c
@@ -121,7 +121,7 @@ static struct ebt_u_match mark_match =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _mark_m_init(void)
 {
 	ebt_register_match(&mark_match);
 }
diff --git a/extensions/ebt_nat.c b/extensions/ebt_nat.c
index e6afbf8..8405091 100644
--- a/extensions/ebt_nat.c
+++ b/extensions/ebt_nat.c
@@ -231,7 +231,7 @@ static struct ebt_u_target dnat_target =
 	.extra_ops	= opts_d,
 };
 
-void _init(void)
+void _nat_init(void)
 {
 	ebt_register_target(&snat_target);
 	ebt_register_target(&dnat_target);
diff --git a/extensions/ebt_nflog.c b/extensions/ebt_nflog.c
index 0cd10e0..89c5ce1 100644
--- a/extensions/ebt_nflog.c
+++ b/extensions/ebt_nflog.c
@@ -166,7 +166,7 @@ static struct ebt_u_watcher nflog_watcher = {
 	.extra_ops = nflog_opts,
 };
 
-void _init(void)
+void _nflog_init(void)
 {
 	ebt_register_watcher(&nflog_watcher);
 }
diff --git a/extensions/ebt_pkttype.c b/extensions/ebt_pkttype.c
index 5b5cb03..d3d925e 100644
--- a/extensions/ebt_pkttype.c
+++ b/extensions/ebt_pkttype.c
@@ -125,7 +125,7 @@ static struct ebt_u_match pkttype_match =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _pkttype_init(void)
 {
 	ebt_register_match(&pkttype_match);
 }
diff --git a/extensions/ebt_redirect.c b/extensions/ebt_redirect.c
index e470818..2ec4736 100644
--- a/extensions/ebt_redirect.c
+++ b/extensions/ebt_redirect.c
@@ -108,7 +108,7 @@ static struct ebt_u_target redirect_target =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _redirect_init(void)
 {
 	ebt_register_target(&redirect_target);
 }
diff --git a/extensions/ebt_standard.c b/extensions/ebt_standard.c
index 67d4d7c..a0e98d4 100644
--- a/extensions/ebt_standard.c
+++ b/extensions/ebt_standard.c
@@ -84,7 +84,7 @@ static struct ebt_u_target standard =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _standard_init(void)
 {
 	ebt_register_target(&standard);
 }
diff --git a/extensions/ebt_stp.c b/extensions/ebt_stp.c
index 2b108a7..5e20f28 100644
--- a/extensions/ebt_stp.c
+++ b/extensions/ebt_stp.c
@@ -337,7 +337,7 @@ static struct ebt_u_match stp_match =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _stp_init(void)
 {
 	ebt_register_match(&stp_match);
 }
diff --git a/extensions/ebt_ulog.c b/extensions/ebt_ulog.c
index 162586d..5c2896a 100644
--- a/extensions/ebt_ulog.c
+++ b/extensions/ebt_ulog.c
@@ -180,7 +180,7 @@ static struct ebt_u_watcher ulog_watcher =
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _ulog_init(void)
 {
 	ebt_register_watcher(&ulog_watcher);
 }
diff --git a/extensions/ebt_vlan.c b/extensions/ebt_vlan.c
index 6714c82..a6b5e1c 100644
--- a/extensions/ebt_vlan.c
+++ b/extensions/ebt_vlan.c
@@ -181,7 +181,7 @@ static struct ebt_u_match vlan_match = {
 	.extra_ops	= opts,
 };
 
-void _init(void)
+void _vlan_init(void)
 {
 	ebt_register_match(&vlan_match);
 }
diff --git a/extensions/ebtable_broute.c b/extensions/ebtable_broute.c
index 5259355..ea7aa89 100644
--- a/extensions/ebtable_broute.c
+++ b/extensions/ebtable_broute.c
@@ -23,7 +23,7 @@ ebt_u_table table =
 	.help		= print_help,
 };
 
-void _init(void)
+void _t_broute_init(void)
 {
 	ebt_register_table(&table);
 }
diff --git a/extensions/ebtable_filter.c b/extensions/ebtable_filter.c
index e41fb84..5887d28 100644
--- a/extensions/ebtable_filter.c
+++ b/extensions/ebtable_filter.c
@@ -29,7 +29,7 @@ static struct ebt_u_table table =
 	.help		= print_help,
 };
 
-void _init(void)
+void _t_filter_init(void)
 {
 	ebt_register_table(&table);
 }
diff --git a/extensions/ebtable_nat.c b/extensions/ebtable_nat.c
index b21c9dd..52c5542 100644
--- a/extensions/ebtable_nat.c
+++ b/extensions/ebtable_nat.c
@@ -30,7 +30,7 @@ ebt_u_table table =
 	.help		= print_help,
 };
 
-void _init(void)
+void _t_nat_init(void)
 {
 	ebt_register_table(&table);
 }
diff --git a/include/ebtables_u.h b/include/ebtables_u.h
index 07dae8e..63ce231 100644
--- a/include/ebtables_u.h
+++ b/include/ebtables_u.h
@@ -26,12 +26,9 @@
 #include <netinet/in.h>
 
 #ifdef __ANDROID_API__
-#pragma message "Found __ANDRIOD_API__, #undef __unused"
 #undef __unused
-#include <ebtables.h>
-#else
-#include <linux/netfilter_bridge/ebtables.h>
 #endif
+#include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter/x_tables.h>
 
 #ifndef IPPROTO_SCTP
@@ -390,3 +387,24 @@ extern int ebt_printstyle_mac;
 # define ARRAY_SIZE(x)	(sizeof(x) / sizeof((x)[0]))
 #endif
 #endif /* EBTABLES_U_H */
+extern void _802_3_init();
+extern void _nat_init();
+extern void _arp_init();
+extern void _arpreply_init();
+extern void _ip_init();
+extern void _ip6_init();
+extern void _standard_init();
+extern void _log_init();
+extern void _redirect_init();
+extern void _vlan_init();
+extern void _mark_m_init();
+extern void _mark_init();
+extern void _pkttype_init();
+extern void _stp_init();
+extern void _among_init();
+extern void _limit_init();
+extern void _ulog_init();
+extern void _nflog_init();
+extern void _t_filter_init();
+extern void _t_nat_init();
+extern void _t_broute_init();
diff --git a/include/ebtables_u.h_ b/include/ebtables_u.h_
new file mode 100644
index 0000000..07dae8e
--- /dev/null
+++ b/include/ebtables_u.h_
@@ -0,0 +1,392 @@
+/*
+ * $Id: ebtables.c,v 1.03 2002/01/19
+ *
+ * Copyright (C) 2001-2002 Bart De Schuymer
+ *
+ *  This code is stongly inspired on the iptables code which is
+ *  Copyright (C) 1999 Paul `Rusty' Russell & Michael J. Neuling
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef EBTABLES_U_H
+#define EBTABLES_U_H
+#include <netinet/in.h>
+
+#ifdef __ANDROID_API__
+#pragma message "Found __ANDRIOD_API__, #undef __unused"
+#undef __unused
+#include <ebtables.h>
+#else
+#include <linux/netfilter_bridge/ebtables.h>
+#endif
+#include <linux/netfilter/x_tables.h>
+
+#ifndef IPPROTO_SCTP
+#define IPPROTO_SCTP		132
+#endif
+#ifndef IPPROTO_DCCP
+#define IPPROTO_DCCP		33
+#endif
+
+#define EXEC_STYLE_PRG		0
+#define EXEC_STYLE_DAEMON	1
+
+#ifndef EBT_MIN_ALIGN
+#define EBT_MIN_ALIGN (__alignof__(struct _xt_align))
+#endif
+#define EBT_ALIGN(s) (((s) + (EBT_MIN_ALIGN-1)) & ~(EBT_MIN_ALIGN-1))
+#define ERRORMSG_MAXLEN 128
+
+struct ebt_u_entries
+{
+	int policy;
+	unsigned int nentries;
+	/* counter offset for this chain */
+	unsigned int counter_offset;
+	/* used for udc */
+	unsigned int hook_mask;
+	char *kernel_start;
+	char name[EBT_CHAIN_MAXNAMELEN];
+	struct ebt_u_entry *entries;
+};
+
+struct ebt_cntchanges
+{
+	unsigned short type;
+	unsigned short change; /* determines incremental/decremental/change */
+	struct ebt_cntchanges *prev;
+	struct ebt_cntchanges *next;
+};
+
+#define EBT_ORI_MAX_CHAINS 10
+struct ebt_u_replace
+{
+	char name[EBT_TABLE_MAXNAMELEN];
+	unsigned int valid_hooks;
+	/* nr of rules in the table */
+	unsigned int nentries;
+	unsigned int num_chains;
+	unsigned int max_chains;
+	struct ebt_u_entries **chains;
+	/* nr of counters userspace expects back */
+	unsigned int num_counters;
+	/* where the kernel will put the old counters */
+	struct ebt_counter *counters;
+	/*
+	 * can be used e.g. to know if a standard option
+	 * has been specified twice
+	 */
+	unsigned int flags;
+	/* we stick the specified command (e.g. -A) in here */
+	char command;
+	/*
+	 * here we stick the chain to do our thing on (can be -1 if unspecified)
+	 */
+	int selected_chain;
+	/* used for the atomic option */
+	char *filename;
+	/* tells what happened to the old rules (counter changes) */
+	struct ebt_cntchanges *cc;
+};
+
+struct ebt_u_table
+{
+	char name[EBT_TABLE_MAXNAMELEN];
+	void (*check)(struct ebt_u_replace *repl);
+	void (*help)(const char **);
+	struct ebt_u_table *next;
+};
+
+struct ebt_u_match_list
+{
+	struct ebt_u_match_list *next;
+	struct ebt_entry_match *m;
+};
+
+struct ebt_u_watcher_list
+{
+	struct ebt_u_watcher_list *next;
+	struct ebt_entry_watcher *w;
+};
+
+struct ebt_u_entry
+{
+	unsigned int bitmask;
+	unsigned int invflags;
+	uint16_t ethproto;
+	char in[IFNAMSIZ];
+	char logical_in[IFNAMSIZ];
+	char out[IFNAMSIZ];
+	char logical_out[IFNAMSIZ];
+	unsigned char sourcemac[ETH_ALEN];
+	unsigned char sourcemsk[ETH_ALEN];
+	unsigned char destmac[ETH_ALEN];
+	unsigned char destmsk[ETH_ALEN];
+	struct ebt_u_match_list *m_list;
+	struct ebt_u_watcher_list *w_list;
+	struct ebt_entry_target *t;
+	struct ebt_u_entry *prev;
+	struct ebt_u_entry *next;
+	struct ebt_counter cnt;
+	struct ebt_counter cnt_surplus; /* for increasing/decreasing a counter and for option 'C' */
+	struct ebt_cntchanges *cc;
+	/* the standard target needs this to know the name of a udc when
+	 * printing out rules. */
+	struct ebt_u_replace *replace;
+};
+
+struct ebt_u_match
+{
+	char name[EBT_FUNCTION_MAXNAMELEN];
+	/* size of the real match data */
+	unsigned int size;
+	void (*help)(void);
+	void (*init)(struct ebt_entry_match *m);
+	int (*parse)(int c, char **argv, int argc,
+	        const struct ebt_u_entry *entry, unsigned int *flags,
+	        struct ebt_entry_match **match);
+	void (*final_check)(const struct ebt_u_entry *entry,
+	   const struct ebt_entry_match *match,
+	   const char *name, unsigned int hookmask, unsigned int time);
+	void (*print)(const struct ebt_u_entry *entry,
+	   const struct ebt_entry_match *match);
+	int (*compare)(const struct ebt_entry_match *m1,
+	   const struct ebt_entry_match *m2);
+	const struct option *extra_ops;
+	/*
+	 * can be used e.g. to check for multiple occurance of the same option
+	 */
+	unsigned int flags;
+	unsigned int option_offset;
+	struct ebt_entry_match *m;
+	/*
+	 * if used == 1 we no longer have to add it to
+	 * the match chain of the new entry
+	 * be sure to put it back on 0 when finished
+	 */
+	unsigned int used;
+	struct ebt_u_match *next;
+};
+
+struct ebt_u_watcher
+{
+	char name[EBT_FUNCTION_MAXNAMELEN];
+	unsigned int size;
+	void (*help)(void);
+	void (*init)(struct ebt_entry_watcher *w);
+	int (*parse)(int c, char **argv, int argc,
+	   const struct ebt_u_entry *entry, unsigned int *flags,
+	   struct ebt_entry_watcher **watcher);
+	void (*final_check)(const struct ebt_u_entry *entry,
+	   const struct ebt_entry_watcher *watch, const char *name,
+	   unsigned int hookmask, unsigned int time);
+	void (*print)(const struct ebt_u_entry *entry,
+	   const struct ebt_entry_watcher *watcher);
+	int (*compare)(const struct ebt_entry_watcher *w1,
+	   const struct ebt_entry_watcher *w2);
+	const struct option *extra_ops;
+	unsigned int flags;
+	unsigned int option_offset;
+	struct ebt_entry_watcher *w;
+	unsigned int used;
+	struct ebt_u_watcher *next;
+};
+
+struct ebt_u_target
+{
+	char name[EBT_FUNCTION_MAXNAMELEN];
+	unsigned int size;
+	void (*help)(void);
+	void (*init)(struct ebt_entry_target *t);
+	int (*parse)(int c, char **argv, int argc,
+	   const struct ebt_u_entry *entry, unsigned int *flags,
+	   struct ebt_entry_target **target);
+	void (*final_check)(const struct ebt_u_entry *entry,
+	   const struct ebt_entry_target *target, const char *name,
+	   unsigned int hookmask, unsigned int time);
+	void (*print)(const struct ebt_u_entry *entry,
+	   const struct ebt_entry_target *target);
+	int (*compare)(const struct ebt_entry_target *t1,
+	   const struct ebt_entry_target *t2);
+	const struct option *extra_ops;
+	unsigned int option_offset;
+	unsigned int flags;
+	struct ebt_entry_target *t;
+	unsigned int used;
+	struct ebt_u_target *next;
+};
+
+/* libebtc.c */
+
+extern struct ebt_u_table *ebt_tables;
+extern struct ebt_u_match *ebt_matches;
+extern struct ebt_u_watcher *ebt_watchers;
+extern struct ebt_u_target *ebt_targets;
+
+extern int use_lockfd;
+
+void ebt_register_table(struct ebt_u_table *);
+void ebt_register_match(struct ebt_u_match *);
+void ebt_register_watcher(struct ebt_u_watcher *);
+void ebt_register_target(struct ebt_u_target *t);
+int ebt_get_kernel_table(struct ebt_u_replace *replace, int init);
+struct ebt_u_target *ebt_find_target(const char *name);
+struct ebt_u_match *ebt_find_match(const char *name);
+struct ebt_u_watcher *ebt_find_watcher(const char *name);
+struct ebt_u_table *ebt_find_table(const char *name);
+int ebtables_insmod(const char *modname);
+void ebt_list_extensions();
+void ebt_initialize_entry(struct ebt_u_entry *e);
+void ebt_cleanup_replace(struct ebt_u_replace *replace);
+void ebt_reinit_extensions();
+void ebt_double_chains(struct ebt_u_replace *replace);
+void ebt_free_u_entry(struct ebt_u_entry *e);
+struct ebt_u_entries *ebt_name_to_chain(const struct ebt_u_replace *replace,
+				    const char* arg);
+struct ebt_u_entries *ebt_name_to_chain(const struct ebt_u_replace *replace,
+				    const char* arg);
+int ebt_get_chainnr(const struct ebt_u_replace *replace, const char* arg);
+/**/
+void ebt_change_policy(struct ebt_u_replace *replace, int policy);
+void ebt_flush_chains(struct ebt_u_replace *replace);
+int ebt_check_rule_exists(struct ebt_u_replace *replace,
+			  struct ebt_u_entry *new_entry);
+void ebt_add_rule(struct ebt_u_replace *replace, struct ebt_u_entry *new_entry,
+		  int rule_nr);
+void ebt_delete_rule(struct ebt_u_replace *replace,
+		     struct ebt_u_entry *new_entry, int begin, int end);
+void ebt_zero_counters(struct ebt_u_replace *replace);
+void ebt_change_counters(struct ebt_u_replace *replace,
+		     struct ebt_u_entry *new_entry, int begin, int end,
+		     struct ebt_counter *cnt, int mask);
+void ebt_new_chain(struct ebt_u_replace *replace, const char *name, int policy);
+void ebt_delete_chain(struct ebt_u_replace *replace);
+void ebt_rename_chain(struct ebt_u_replace *replace, const char *name);
+/**/
+void ebt_do_final_checks(struct ebt_u_replace *replace, struct ebt_u_entry *e,
+			 struct ebt_u_entries *entries);
+int ebt_check_for_references(struct ebt_u_replace *replace, int print_err);
+int ebt_check_for_references2(struct ebt_u_replace *replace, int chain_nr,
+			      int print_err);
+void ebt_check_for_loops(struct ebt_u_replace *replace);
+void ebt_add_match(struct ebt_u_entry *new_entry, struct ebt_u_match *m);
+void ebt_add_watcher(struct ebt_u_entry *new_entry, struct ebt_u_watcher *w);
+void ebt_iterate_matches(void (*f)(struct ebt_u_match *));
+void ebt_iterate_watchers(void (*f)(struct ebt_u_watcher *));
+void ebt_iterate_targets(void (*f)(struct ebt_u_target *));
+void __ebt_print_bug(char *file, int line, char *format, ...);
+void __ebt_print_error(char *format, ...);
+
+/* communication.c */
+
+int ebt_get_table(struct ebt_u_replace *repl, int init);
+void ebt_deliver_counters(struct ebt_u_replace *repl);
+void ebt_deliver_table(struct ebt_u_replace *repl);
+
+/* useful_functions.c */
+
+extern int ebt_invert;
+void ebt_check_option(unsigned int *flags, unsigned int mask);
+#define ebt_check_inverse(arg) _ebt_check_inverse(arg, argc, argv)
+int _ebt_check_inverse(const char option[], int argc, char **argv);
+void ebt_print_mac(const unsigned char *mac);
+void ebt_print_mac_and_mask(const unsigned char *mac, const unsigned char *mask);
+int ebt_get_mac_and_mask(const char *from, unsigned char *to, unsigned char *mask);
+void ebt_parse_ip_address(char *address, uint32_t *addr, uint32_t *msk);
+char *ebt_mask_to_dotted(uint32_t mask);
+void ebt_parse_ip6_address(char *address, struct in6_addr *addr, 
+						   struct in6_addr *msk);
+char *ebt_ip6_to_numeric(const struct in6_addr *addrp);
+
+
+int do_command(int argc, char *argv[], int exec_style,
+               struct ebt_u_replace *replace_);
+
+struct ethertypeent *parseethertypebynumber(int type);
+
+#define ebt_to_chain(repl)				\
+({struct ebt_u_entries *_ch = NULL;			\
+if (repl->selected_chain != -1)				\
+	_ch = repl->chains[repl->selected_chain];	\
+_ch;})
+#define ebt_print_bug(format, args...) \
+   __ebt_print_bug(__FILE__, __LINE__, format, ##args)
+#define ebt_print_error(format,args...) __ebt_print_error(format, ##args);
+#define ebt_print_error2(format, args...) do {__ebt_print_error(format, ##args); \
+   return -1;} while (0)
+#define ebt_check_option2(flags,mask)	\
+({ebt_check_option(flags,mask);		\
+ if (ebt_errormsg[0] != '\0')		\
+	return -1;})
+#define ebt_check_inverse2(option)					\
+({int __ret = ebt_check_inverse(option);				\
+if (ebt_errormsg[0] != '\0')						\
+	return -1;							\
+if (!optarg) {								\
+	__ebt_print_error("Option without (mandatory) argument");	\
+	return -1;							\
+}									\
+__ret;})
+#define ebt_print_memory() do {printf("Ebtables: " __FILE__ \
+   " %s %d :Out of memory.\n", __FUNCTION__, __LINE__); exit(-1);} while (0)
+
+/* used for keeping the rule counters right during rule adds or deletes */
+#define CNT_NORM 	0
+#define CNT_DEL 	1
+#define CNT_ADD 	2
+#define CNT_CHANGE 	3
+
+extern const char *ebt_hooknames[NF_BR_NUMHOOKS];
+extern const char *ebt_standard_targets[NUM_STANDARD_TARGETS];
+extern char ebt_errormsg[ERRORMSG_MAXLEN];
+extern char *ebt_modprobe;
+extern int ebt_silent;
+extern int ebt_printstyle_mac;
+
+/*
+ * Transforms a target string into the right integer,
+ * returns 0 on success.
+ */
+#define FILL_TARGET(_str, _pos) ({                            \
+	int _i, _ret = 0;                                     \
+	for (_i = 0; _i < NUM_STANDARD_TARGETS; _i++)         \
+		if (!strcmp(_str, ebt_standard_targets[_i])) {\
+			_pos = -_i - 1;                       \
+			break;                                \
+		}                                             \
+	if (_i == NUM_STANDARD_TARGETS)                       \
+		_ret = 1;                                     \
+	_ret;                                                 \
+})
+
+/* Transforms the target value to an index into standard_targets[] */
+#define TARGET_INDEX(_value) (-_value - 1)
+/* Returns a target string corresponding to the value */
+#define TARGET_NAME(_value) (ebt_standard_targets[TARGET_INDEX(_value)])
+/* True if the hook mask denotes that the rule is in a base chain */
+#define BASE_CHAIN (hookmask & (1 << NF_BR_NUMHOOKS))
+/* Clear the bit in the hook_mask that tells if the rule is on a base chain */
+#define CLEAR_BASE_CHAIN_BIT (hookmask &= ~(1 << NF_BR_NUMHOOKS))
+#define PRINT_VERSION printf(PROGNAME" v"PROGVERSION" ("PROGDATE")\n")
+#ifndef PROC_SYS_MODPROBE
+#define PROC_SYS_MODPROBE "/proc/sys/kernel/modprobe"
+#endif
+#define ATOMIC_ENV_VARIABLE "EBTABLES_ATOMIC_FILE"
+
+#ifndef ARRAY_SIZE
+# define ARRAY_SIZE(x)	(sizeof(x) / sizeof((x)[0]))
+#endif
+#endif /* EBTABLES_U_H */