UAPI: (Scripted) Disintegrate include/linux/netfilter_bridge

Signed-off-by: David Howells <[e-mail]>
Acked-by: Arnd Bergmann <[e-mail]>
Acked-by: Thomas Gleixner <[e-mail]>
Acked-by: Michael Kerrisk <[e-mail]>
Acked-by: Paul E. McKenney <[e-mail]>
Acked-by: Dave Jones <[e-mail]>

include/linux/netfilter_bridge/Kbuild

···
-header-y += ebt_802_3.h
-header-y += ebt_among.h
-header-y += ebt_arp.h
-header-y += ebt_arpreply.h
-header-y += ebt_ip.h
-header-y += ebt_ip6.h
-header-y += ebt_limit.h
-header-y += ebt_log.h
-header-y += ebt_mark_m.h
-header-y += ebt_mark_t.h
-header-y += ebt_nat.h
-header-y += ebt_nflog.h
-header-y += ebt_pkttype.h
-header-y += ebt_redirect.h
-header-y += ebt_stp.h
-header-y += ebt_ulog.h
-header-y += ebt_vlan.h
-header-y += ebtables.h

include/linux/netfilter_bridge/ebt_802_3.h

···
 #ifndef __LINUX_BRIDGE_EBT_802_3_H
 #define __LINUX_BRIDGE_EBT_802_3_H
 
-#include <linux/types.h>
-
-#define EBT_802_3_SAP 0x01
-#define EBT_802_3_TYPE 0x02
-
-#define EBT_802_3_MATCH "802_3"
-
-/*
- * If frame has DSAP/SSAP value 0xaa you must check the SNAP type
- * to discover what kind of packet we're carrying. 
- */
-#define CHECK_TYPE 0xaa
-
-/*
- * Control field may be one or two bytes.  If the first byte has
- * the value 0x03 then the entire length is one byte, otherwise it is two.
- * One byte controls are used in Unnumbered Information frames.
- * Two byte controls are used in Numbered Information frames.
- */
-#define IS_UI 0x03
-
-#define EBT_802_3_MASK (EBT_802_3_SAP | EBT_802_3_TYPE | EBT_802_3)
-
-/* ui has one byte ctrl, ni has two */
-struct hdr_ui {
-	__u8 dsap;
-	__u8 ssap;
-	__u8 ctrl;
-	__u8 orig[3];
-	__be16 type;
-};
-
-struct hdr_ni {
-	__u8 dsap;
-	__u8 ssap;
-	__be16 ctrl;
-	__u8  orig[3];
-	__be16 type;
-};
-
-struct ebt_802_3_hdr {
-	__u8  daddr[6];
-	__u8  saddr[6];
-	__be16 len;
-	union {
-		struct hdr_ui ui;
-		struct hdr_ni ni;
-	} llc;
-};
-
-#ifdef __KERNEL__
 #include <linux/skbuff.h>
+#include <uapi/linux/netfilter_bridge/ebt_802_3.h>
 
 static inline struct ebt_802_3_hdr *ebt_802_3_hdr(const struct sk_buff *skb)
 {
 	return (struct ebt_802_3_hdr *)skb_mac_header(skb);
 }
-#endif
-
-struct ebt_802_3_info {
-	__u8  sap;
-	__be16 type;
-	__u8  bitmask;
-	__u8  invflags;
-};
-
 #endif

include/linux/netfilter_bridge/ebtables.h

···
  *  This code is stongly inspired on the iptables code which is
  *  Copyright (C) 1999 Paul `Rusty' Russell & Michael J. Neuling
  */
-
 #ifndef __LINUX_BRIDGE_EFF_H
 #define __LINUX_BRIDGE_EFF_H
-#include <linux/if.h>
-#include <linux/netfilter_bridge.h>
-#include <linux/if_ether.h>
 
-#define EBT_TABLE_MAXNAMELEN 32
-#define EBT_CHAIN_MAXNAMELEN EBT_TABLE_MAXNAMELEN
-#define EBT_FUNCTION_MAXNAMELEN EBT_TABLE_MAXNAMELEN
+#include <uapi/linux/netfilter_bridge/ebtables.h>
 
-/* verdicts >0 are "branches" */
-#define EBT_ACCEPT   -1
-#define EBT_DROP     -2
-#define EBT_CONTINUE -3
-#define EBT_RETURN   -4
-#define NUM_STANDARD_TARGETS   4
-/* ebtables target modules store the verdict inside an int. We can
- * reclaim a part of this int for backwards compatible extensions.
- * The 4 lsb are more than enough to store the verdict. */
-#define EBT_VERDICT_BITS 0x0000000F
-
-struct xt_match;
-struct xt_target;
-
-struct ebt_counter {
-	uint64_t pcnt;
-	uint64_t bcnt;
-};
-
-struct ebt_replace {
-	char name[EBT_TABLE_MAXNAMELEN];
-	unsigned int valid_hooks;
-	/* nr of rules in the table */
-	unsigned int nentries;
-	/* total size of the entries */
-	unsigned int entries_size;
-	/* start of the chains */
-	struct ebt_entries __user *hook_entry[NF_BR_NUMHOOKS];
-	/* nr of counters userspace expects back */
-	unsigned int num_counters;
-	/* where the kernel will put the old counters */
-	struct ebt_counter __user *counters;
-	char __user *entries;
-};
-
-struct ebt_replace_kernel {
-	char name[EBT_TABLE_MAXNAMELEN];
-	unsigned int valid_hooks;
-	/* nr of rules in the table */
-	unsigned int nentries;
-	/* total size of the entries */
-	unsigned int entries_size;
-	/* start of the chains */
-	struct ebt_entries *hook_entry[NF_BR_NUMHOOKS];
-	/* nr of counters userspace expects back */
-	unsigned int num_counters;
-	/* where the kernel will put the old counters */
-	struct ebt_counter *counters;
-	char *entries;
-};
-
-struct ebt_entries {
-	/* this field is always set to zero
-	 * See EBT_ENTRY_OR_ENTRIES.
-	 * Must be same size as ebt_entry.bitmask */
-	unsigned int distinguisher;
-	/* the chain name */
-	char name[EBT_CHAIN_MAXNAMELEN];
-	/* counter offset for this chain */
-	unsigned int counter_offset;
-	/* one standard (accept, drop, return) per hook */
-	int policy;
-	/* nr. of entries */
-	unsigned int nentries;
-	/* entry list */
-	char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
-};
-
-/* used for the bitmask of struct ebt_entry */
-
-/* This is a hack to make a difference between an ebt_entry struct and an
- * ebt_entries struct when traversing the entries from start to end.
- * Using this simplifies the code a lot, while still being able to use
- * ebt_entries.
- * Contrary, iptables doesn't use something like ebt_entries and therefore uses
- * different techniques for naming the policy and such. So, iptables doesn't
- * need a hack like this.
- */
-#define EBT_ENTRY_OR_ENTRIES 0x01
-/* these are the normal masks */
-#define EBT_NOPROTO 0x02
-#define EBT_802_3 0x04
-#define EBT_SOURCEMAC 0x08
-#define EBT_DESTMAC 0x10
-#define EBT_F_MASK (EBT_NOPROTO | EBT_802_3 | EBT_SOURCEMAC | EBT_DESTMAC \
-   | EBT_ENTRY_OR_ENTRIES)
-
-#define EBT_IPROTO 0x01
-#define EBT_IIN 0x02
-#define EBT_IOUT 0x04
-#define EBT_ISOURCE 0x8
-#define EBT_IDEST 0x10
-#define EBT_ILOGICALIN 0x20
-#define EBT_ILOGICALOUT 0x40
-#define EBT_INV_MASK (EBT_IPROTO | EBT_IIN | EBT_IOUT | EBT_ILOGICALIN \
-   | EBT_ILOGICALOUT | EBT_ISOURCE | EBT_IDEST)
-
-struct ebt_entry_match {
-	union {
-		char name[EBT_FUNCTION_MAXNAMELEN];
-		struct xt_match *match;
-	} u;
-	/* size of data */
-	unsigned int match_size;
-	unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
-};
-
-struct ebt_entry_watcher {
-	union {
-		char name[EBT_FUNCTION_MAXNAMELEN];
-		struct xt_target *watcher;
-	} u;
-	/* size of data */
-	unsigned int watcher_size;
-	unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
-};
-
-struct ebt_entry_target {
-	union {
-		char name[EBT_FUNCTION_MAXNAMELEN];
-		struct xt_target *target;
-	} u;
-	/* size of data */
-	unsigned int target_size;
-	unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
-};
-
-#define EBT_STANDARD_TARGET "standard"
-struct ebt_standard_target {
-	struct ebt_entry_target target;
-	int verdict;
-};
-
-/* one entry */
-struct ebt_entry {
-	/* this needs to be the first field */
-	unsigned int bitmask;
-	unsigned int invflags;
-	__be16 ethproto;
-	/* the physical in-dev */
-	char in[IFNAMSIZ];
-	/* the logical in-dev */
-	char logical_in[IFNAMSIZ];
-	/* the physical out-dev */
-	char out[IFNAMSIZ];
-	/* the logical out-dev */
-	char logical_out[IFNAMSIZ];
-	unsigned char sourcemac[ETH_ALEN];
-	unsigned char sourcemsk[ETH_ALEN];
-	unsigned char destmac[ETH_ALEN];
-	unsigned char destmsk[ETH_ALEN];
-	/* sizeof ebt_entry + matches */
-	unsigned int watchers_offset;
-	/* sizeof ebt_entry + matches + watchers */
-	unsigned int target_offset;
-	/* sizeof ebt_entry + matches + watchers + target */
-	unsigned int next_offset;
-	unsigned char elems[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
-};
-
-/* {g,s}etsockopt numbers */
-#define EBT_BASE_CTL            128
-
-#define EBT_SO_SET_ENTRIES      (EBT_BASE_CTL)
-#define EBT_SO_SET_COUNTERS     (EBT_SO_SET_ENTRIES+1)
-#define EBT_SO_SET_MAX          (EBT_SO_SET_COUNTERS+1)
-
-#define EBT_SO_GET_INFO         (EBT_BASE_CTL)
-#define EBT_SO_GET_ENTRIES      (EBT_SO_GET_INFO+1)
-#define EBT_SO_GET_INIT_INFO    (EBT_SO_GET_ENTRIES+1)
-#define EBT_SO_GET_INIT_ENTRIES (EBT_SO_GET_INIT_INFO+1)
-#define EBT_SO_GET_MAX          (EBT_SO_GET_INIT_ENTRIES+1)
-
-#ifdef __KERNEL__
 
 /* return values for match() functions */
 #define EBT_MATCH 0
···
 #define CLEAR_BASE_CHAIN_BIT (par->hook_mask &= ~(1 << NF_BR_NUMHOOKS))
 /* True if the target is not a standard target */
 #define INVALID_TARGET (info->target < -NUM_STANDARD_TARGETS || info->target >= 0)
-
-#endif /* __KERNEL__ */
-
-/* blatently stolen from ip_tables.h
- * fn returns 0 to continue iteration */
-#define EBT_MATCH_ITERATE(e, fn, args...)                   \
-({                                                          \
-	unsigned int __i;                                   \
-	int __ret = 0;                                      \
-	struct ebt_entry_match *__match;                    \
-	                                                    \
-	for (__i = sizeof(struct ebt_entry);                \
-	     __i < (e)->watchers_offset;                    \
-	     __i += __match->match_size +                   \
-	     sizeof(struct ebt_entry_match)) {              \
-		__match = (void *)(e) + __i;                \
-		                                            \
-		__ret = fn(__match , ## args);              \
-		if (__ret != 0)                             \
-			break;                              \
-	}                                                   \
-	if (__ret == 0) {                                   \
-		if (__i != (e)->watchers_offset)            \
-			__ret = -EINVAL;                    \
-	}                                                   \
-	__ret;                                              \
-})
-
-#define EBT_WATCHER_ITERATE(e, fn, args...)                 \
-({                                                          \
-	unsigned int __i;                                   \
-	int __ret = 0;                                      \
-	struct ebt_entry_watcher *__watcher;                \
-	                                                    \
-	for (__i = e->watchers_offset;                      \
-	     __i < (e)->target_offset;                      \
-	     __i += __watcher->watcher_size +               \
-	     sizeof(struct ebt_entry_watcher)) {            \
-		__watcher = (void *)(e) + __i;              \
-		                                            \
-		__ret = fn(__watcher , ## args);            \
-		if (__ret != 0)                             \
-			break;                              \
-	}                                                   \
-	if (__ret == 0) {                                   \
-		if (__i != (e)->target_offset)              \
-			__ret = -EINVAL;                    \
-	}                                                   \
-	__ret;                                              \
-})
-
-#define EBT_ENTRY_ITERATE(entries, size, fn, args...)       \
-({                                                          \
-	unsigned int __i;                                   \
-	int __ret = 0;                                      \
-	struct ebt_entry *__entry;                          \
-	                                                    \
-	for (__i = 0; __i < (size);) {                      \
-		__entry = (void *)(entries) + __i;          \
-		__ret = fn(__entry , ## args);              \
-		if (__ret != 0)                             \
-			break;                              \
-		if (__entry->bitmask != 0)                  \
-			__i += __entry->next_offset;        \
-		else                                        \
-			__i += sizeof(struct ebt_entries);  \
-	}                                                   \
-	if (__ret == 0) {                                   \
-		if (__i != (size))                          \
-			__ret = -EINVAL;                    \
-	}                                                   \
-	__ret;                                              \
-})
 
 #endif

include/uapi/linux/netfilter_bridge/Kbuild

···
 # UAPI Header export list
+header-y += ebt_802_3.h
+header-y += ebt_among.h
+header-y += ebt_arp.h
+header-y += ebt_arpreply.h
+header-y += ebt_ip.h
+header-y += ebt_ip6.h
+header-y += ebt_limit.h
+header-y += ebt_log.h
+header-y += ebt_mark_m.h
+header-y += ebt_mark_t.h
+header-y += ebt_nat.h
+header-y += ebt_nflog.h
+header-y += ebt_pkttype.h
+header-y += ebt_redirect.h
+header-y += ebt_stp.h
+header-y += ebt_ulog.h
+header-y += ebt_vlan.h
+header-y += ebtables.h

include/uapi/linux/netfilter_bridge/ebt_802_3.h

···
+#ifndef _UAPI__LINUX_BRIDGE_EBT_802_3_H
+#define _UAPI__LINUX_BRIDGE_EBT_802_3_H
+
+#include <linux/types.h>
+
+#define EBT_802_3_SAP 0x01
+#define EBT_802_3_TYPE 0x02
+
+#define EBT_802_3_MATCH "802_3"
+
+/*
+ * If frame has DSAP/SSAP value 0xaa you must check the SNAP type
+ * to discover what kind of packet we're carrying. 
+ */
+#define CHECK_TYPE 0xaa
+
+/*
+ * Control field may be one or two bytes.  If the first byte has
+ * the value 0x03 then the entire length is one byte, otherwise it is two.
+ * One byte controls are used in Unnumbered Information frames.
+ * Two byte controls are used in Numbered Information frames.
+ */
+#define IS_UI 0x03
+
+#define EBT_802_3_MASK (EBT_802_3_SAP | EBT_802_3_TYPE | EBT_802_3)
+
+/* ui has one byte ctrl, ni has two */
+struct hdr_ui {
+	__u8 dsap;
+	__u8 ssap;
+	__u8 ctrl;
+	__u8 orig[3];
+	__be16 type;
+};
+
+struct hdr_ni {
+	__u8 dsap;
+	__u8 ssap;
+	__be16 ctrl;
+	__u8  orig[3];
+	__be16 type;
+};
+
+struct ebt_802_3_hdr {
+	__u8  daddr[6];
+	__u8  saddr[6];
+	__be16 len;
+	union {
+		struct hdr_ui ui;
+		struct hdr_ni ni;
+	} llc;
+};
+
+
+struct ebt_802_3_info {
+	__u8  sap;
+	__be16 type;
+	__u8  bitmask;
+	__u8  invflags;
+};
+
+#endif /* _UAPI__LINUX_BRIDGE_EBT_802_3_H */

include/uapi/linux/netfilter_bridge/ebtables.h

···
+/*
+ *  ebtables
+ *
+ *	Authors:
+ *	Bart De Schuymer		<[e-mail]>
+ *
+ *  ebtables.c,v 2.0, April, 2002
+ *
+ *  This code is stongly inspired on the iptables code which is
+ *  Copyright (C) 1999 Paul `Rusty' Russell & Michael J. Neuling
+ */
+
+#ifndef _UAPI__LINUX_BRIDGE_EFF_H
+#define _UAPI__LINUX_BRIDGE_EFF_H
+#include <linux/if.h>
+#include <linux/netfilter_bridge.h>
+#include <linux/if_ether.h>
+
+#define EBT_TABLE_MAXNAMELEN 32
+#define EBT_CHAIN_MAXNAMELEN EBT_TABLE_MAXNAMELEN
+#define EBT_FUNCTION_MAXNAMELEN EBT_TABLE_MAXNAMELEN
+
+/* verdicts >0 are "branches" */
+#define EBT_ACCEPT   -1
+#define EBT_DROP     -2
+#define EBT_CONTINUE -3
+#define EBT_RETURN   -4
+#define NUM_STANDARD_TARGETS   4
+/* ebtables target modules store the verdict inside an int. We can
+ * reclaim a part of this int for backwards compatible extensions.
+ * The 4 lsb are more than enough to store the verdict. */
+#define EBT_VERDICT_BITS 0x0000000F
+
+struct xt_match;
+struct xt_target;
+
+struct ebt_counter {
+	uint64_t pcnt;
+	uint64_t bcnt;
+};
+
+struct ebt_replace {
+	char name[EBT_TABLE_MAXNAMELEN];
+	unsigned int valid_hooks;
+	/* nr of rules in the table */
+	unsigned int nentries;
+	/* total size of the entries */
+	unsigned int entries_size;
+	/* start of the chains */
+	struct ebt_entries __user *hook_entry[NF_BR_NUMHOOKS];
+	/* nr of counters userspace expects back */
+	unsigned int num_counters;
+	/* where the kernel will put the old counters */
+	struct ebt_counter __user *counters;
+	char __user *entries;
+};
+
+struct ebt_replace_kernel {
+	char name[EBT_TABLE_MAXNAMELEN];
+	unsigned int valid_hooks;
+	/* nr of rules in the table */
+	unsigned int nentries;
+	/* total size of the entries */
+	unsigned int entries_size;
+	/* start of the chains */
+	struct ebt_entries *hook_entry[NF_BR_NUMHOOKS];
+	/* nr of counters userspace expects back */
+	unsigned int num_counters;
+	/* where the kernel will put the old counters */
+	struct ebt_counter *counters;
+	char *entries;
+};
+
+struct ebt_entries {
+	/* this field is always set to zero
+	 * See EBT_ENTRY_OR_ENTRIES.
+	 * Must be same size as ebt_entry.bitmask */
+	unsigned int distinguisher;
+	/* the chain name */
+	char name[EBT_CHAIN_MAXNAMELEN];
+	/* counter offset for this chain */
+	unsigned int counter_offset;
+	/* one standard (accept, drop, return) per hook */
+	int policy;
+	/* nr. of entries */
+	unsigned int nentries;
+	/* entry list */
+	char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
+};
+
+/* used for the bitmask of struct ebt_entry */
+
+/* This is a hack to make a difference between an ebt_entry struct and an
+ * ebt_entries struct when traversing the entries from start to end.
+ * Using this simplifies the code a lot, while still being able to use
+ * ebt_entries.
+ * Contrary, iptables doesn't use something like ebt_entries and therefore uses
+ * different techniques for naming the policy and such. So, iptables doesn't
+ * need a hack like this.
+ */
+#define EBT_ENTRY_OR_ENTRIES 0x01
+/* these are the normal masks */
+#define EBT_NOPROTO 0x02
+#define EBT_802_3 0x04
+#define EBT_SOURCEMAC 0x08
+#define EBT_DESTMAC 0x10
+#define EBT_F_MASK (EBT_NOPROTO | EBT_802_3 | EBT_SOURCEMAC | EBT_DESTMAC \
+   | EBT_ENTRY_OR_ENTRIES)
+
+#define EBT_IPROTO 0x01
+#define EBT_IIN 0x02
+#define EBT_IOUT 0x04
+#define EBT_ISOURCE 0x8
+#define EBT_IDEST 0x10
+#define EBT_ILOGICALIN 0x20
+#define EBT_ILOGICALOUT 0x40
+#define EBT_INV_MASK (EBT_IPROTO | EBT_IIN | EBT_IOUT | EBT_ILOGICALIN \
+   | EBT_ILOGICALOUT | EBT_ISOURCE | EBT_IDEST)
+
+struct ebt_entry_match {
+	union {
+		char name[EBT_FUNCTION_MAXNAMELEN];
+		struct xt_match *match;
+	} u;
+	/* size of data */
+	unsigned int match_size;
+	unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
+};
+
+struct ebt_entry_watcher {
+	union {
+		char name[EBT_FUNCTION_MAXNAMELEN];
+		struct xt_target *watcher;
+	} u;
+	/* size of data */
+	unsigned int watcher_size;
+	unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
+};
+
+struct ebt_entry_target {
+	union {
+		char name[EBT_FUNCTION_MAXNAMELEN];
+		struct xt_target *target;
+	} u;
+	/* size of data */
+	unsigned int target_size;
+	unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
+};
+
+#define EBT_STANDARD_TARGET "standard"
+struct ebt_standard_target {
+	struct ebt_entry_target target;
+	int verdict;
+};
+
+/* one entry */
+struct ebt_entry {
+	/* this needs to be the first field */
+	unsigned int bitmask;
+	unsigned int invflags;
+	__be16 ethproto;
+	/* the physical in-dev */
+	char in[IFNAMSIZ];
+	/* the logical in-dev */
+	char logical_in[IFNAMSIZ];
+	/* the physical out-dev */
+	char out[IFNAMSIZ];
+	/* the logical out-dev */
+	char logical_out[IFNAMSIZ];
+	unsigned char sourcemac[ETH_ALEN];
+	unsigned char sourcemsk[ETH_ALEN];
+	unsigned char destmac[ETH_ALEN];
+	unsigned char destmsk[ETH_ALEN];
+	/* sizeof ebt_entry + matches */
+	unsigned int watchers_offset;
+	/* sizeof ebt_entry + matches + watchers */
+	unsigned int target_offset;
+	/* sizeof ebt_entry + matches + watchers + target */
+	unsigned int next_offset;
+	unsigned char elems[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
+};
+
+/* {g,s}etsockopt numbers */
+#define EBT_BASE_CTL            128
+
+#define EBT_SO_SET_ENTRIES      (EBT_BASE_CTL)
+#define EBT_SO_SET_COUNTERS     (EBT_SO_SET_ENTRIES+1)
+#define EBT_SO_SET_MAX          (EBT_SO_SET_COUNTERS+1)
+
+#define EBT_SO_GET_INFO         (EBT_BASE_CTL)
+#define EBT_SO_GET_ENTRIES      (EBT_SO_GET_INFO+1)
+#define EBT_SO_GET_INIT_INFO    (EBT_SO_GET_ENTRIES+1)
+#define EBT_SO_GET_INIT_ENTRIES (EBT_SO_GET_INIT_INFO+1)
+#define EBT_SO_GET_MAX          (EBT_SO_GET_INIT_ENTRIES+1)
+
+
+/* blatently stolen from ip_tables.h
+ * fn returns 0 to continue iteration */
+#define EBT_MATCH_ITERATE(e, fn, args...)                   \
+({                                                          \
+	unsigned int __i;                                   \
+	int __ret = 0;                                      \
+	struct ebt_entry_match *__match;                    \
+	                                                    \
+	for (__i = sizeof(struct ebt_entry);                \
+	     __i < (e)->watchers_offset;                    \
+	     __i += __match->match_size +                   \
+	     sizeof(struct ebt_entry_match)) {              \
+		__match = (void *)(e) + __i;                \
+		                                            \
+		__ret = fn(__match , ## args);              \
+		if (__ret != 0)                             \
+			break;                              \
+	}                                                   \
+	if (__ret == 0) {                                   \
+		if (__i != (e)->watchers_offset)            \
+			__ret = -EINVAL;                    \
+	}                                                   \
+	__ret;                                              \
+})
+
+#define EBT_WATCHER_ITERATE(e, fn, args...)                 \
+({                                                          \
+	unsigned int __i;                                   \
+	int __ret = 0;                                      \
+	struct ebt_entry_watcher *__watcher;                \
+	                                                    \
+	for (__i = e->watchers_offset;                      \
+	     __i < (e)->target_offset;                      \
+	     __i += __watcher->watcher_size +               \
+	     sizeof(struct ebt_entry_watcher)) {            \
+		__watcher = (void *)(e) + __i;              \
+		                                            \
+		__ret = fn(__watcher , ## args);            \
+		if (__ret != 0)                             \
+			break;                              \
+	}                                                   \
+	if (__ret == 0) {                                   \
+		if (__i != (e)->target_offset)              \
+			__ret = -EINVAL;                    \
+	}                                                   \
+	__ret;                                              \
+})
+
+#define EBT_ENTRY_ITERATE(entries, size, fn, args...)       \
+({                                                          \
+	unsigned int __i;                                   \
+	int __ret = 0;                                      \
+	struct ebt_entry *__entry;                          \
+	                                                    \
+	for (__i = 0; __i < (size);) {                      \
+		__entry = (void *)(entries) + __i;          \
+		__ret = fn(__entry , ## args);              \
+		if (__ret != 0)                             \
+			break;                              \
+		if (__entry->bitmask != 0)                  \
+			__i += __entry->next_offset;        \
+		else                                        \
+			__i += sizeof(struct ebt_entries);  \
+	}                                                   \
+	if (__ret == 0) {                                   \
+		if (__i != (size))                          \
+			__ret = -EINVAL;                    \
+	}                                                   \
+	__ret;                                              \
+})
+
+#endif /* _UAPI__LINUX_BRIDGE_EFF_H */