UAPI: (Scripted) Disintegrate include/linux/netfilter_ipv4

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_ipv4/Kbuild

···
-header-y += ip_tables.h
-header-y += ipt_CLUSTERIP.h
-header-y += ipt_ECN.h
-header-y += ipt_LOG.h
-header-y += ipt_REJECT.h
-header-y += ipt_TTL.h
-header-y += ipt_ULOG.h
-header-y += ipt_ah.h
-header-y += ipt_ecn.h
-header-y += ipt_ttl.h

include/linux/netfilter_ipv4/ip_tables.h

···
  * 	flags are stored in host byte order (of course).
  * 	Port numbers are stored in HOST byte order.
  */
-
 #ifndef _IPTABLES_H
 #define _IPTABLES_H
 
-#ifdef __KERNEL__
 #include <linux/if.h>
 #include <linux/in.h>
 #include <linux/ip.h>
 #include <linux/skbuff.h>
-#endif
-#include <linux/types.h>
-#include <linux/compiler.h>
-#include <linux/netfilter_ipv4.h>
-
-#include <linux/netfilter/x_tables.h>
-
-#ifndef __KERNEL__
-#define IPT_FUNCTION_MAXNAMELEN XT_FUNCTION_MAXNAMELEN
-#define IPT_TABLE_MAXNAMELEN XT_TABLE_MAXNAMELEN
-#define ipt_match xt_match
-#define ipt_target xt_target
-#define ipt_table xt_table
-#define ipt_get_revision xt_get_revision
-#define ipt_entry_match xt_entry_match
-#define ipt_entry_target xt_entry_target
-#define ipt_standard_target xt_standard_target
-#define ipt_error_target xt_error_target
-#define ipt_counters xt_counters
-#define IPT_CONTINUE XT_CONTINUE
-#define IPT_RETURN XT_RETURN
-
-/* This group is older than old (iptables < v1.4.0-rc1~89) */
-#include <linux/netfilter/xt_tcpudp.h>
-#define ipt_udp xt_udp
-#define ipt_tcp xt_tcp
-#define IPT_TCP_INV_SRCPT	XT_TCP_INV_SRCPT
-#define IPT_TCP_INV_DSTPT	XT_TCP_INV_DSTPT
-#define IPT_TCP_INV_FLAGS	XT_TCP_INV_FLAGS
-#define IPT_TCP_INV_OPTION	XT_TCP_INV_OPTION
-#define IPT_TCP_INV_MASK	XT_TCP_INV_MASK
-#define IPT_UDP_INV_SRCPT	XT_UDP_INV_SRCPT
-#define IPT_UDP_INV_DSTPT	XT_UDP_INV_DSTPT
-#define IPT_UDP_INV_MASK	XT_UDP_INV_MASK
-
-/* The argument to IPT_SO_ADD_COUNTERS. */
-#define ipt_counters_info xt_counters_info
-/* Standard return verdict, or do jump. */
-#define IPT_STANDARD_TARGET XT_STANDARD_TARGET
-/* Error verdict. */
-#define IPT_ERROR_TARGET XT_ERROR_TARGET
-
-/* fn returns 0 to continue iteration */
-#define IPT_MATCH_ITERATE(e, fn, args...) \
-	XT_MATCH_ITERATE(struct ipt_entry, e, fn, ## args)
-
-/* fn returns 0 to continue iteration */
-#define IPT_ENTRY_ITERATE(entries, size, fn, args...) \
-	XT_ENTRY_ITERATE(struct ipt_entry, entries, size, fn, ## args)
-#endif
-
-/* Yes, Virginia, you have to zero the padding. */
-struct ipt_ip {
-	/* Source and destination IP addr */
-	struct in_addr src, dst;
-	/* Mask for src and dest IP addr */
-	struct in_addr smsk, dmsk;
-	char iniface[IFNAMSIZ], outiface[IFNAMSIZ];
-	unsigned char iniface_mask[IFNAMSIZ], outiface_mask[IFNAMSIZ];
-
-	/* Protocol, 0 = ANY */
-	__u16 proto;
-
-	/* Flags word */
-	__u8 flags;
-	/* Inverse flags */
-	__u8 invflags;
-};
-
-/* Values for "flag" field in struct ipt_ip (general ip structure). */
-#define IPT_F_FRAG		0x01	/* Set if rule is a fragment rule */
-#define IPT_F_GOTO		0x02	/* Set if jump is a goto */
-#define IPT_F_MASK		0x03	/* All possible flag bits mask. */
-
-/* Values for "inv" field in struct ipt_ip. */
-#define IPT_INV_VIA_IN		0x01	/* Invert the sense of IN IFACE. */
-#define IPT_INV_VIA_OUT		0x02	/* Invert the sense of OUT IFACE */
-#define IPT_INV_TOS		0x04	/* Invert the sense of TOS. */
-#define IPT_INV_SRCIP		0x08	/* Invert the sense of SRC IP. */
-#define IPT_INV_DSTIP		0x10	/* Invert the sense of DST OP. */
-#define IPT_INV_FRAG		0x20	/* Invert the sense of FRAG. */
-#define IPT_INV_PROTO		XT_INV_PROTO
-#define IPT_INV_MASK		0x7F	/* All possible flag bits mask. */
-
-/* This structure defines each of the firewall rules.  Consists of 3
-   parts which are 1) general IP header stuff 2) match specific
-   stuff 3) the target to perform if the rule matches */
-struct ipt_entry {
-	struct ipt_ip ip;
-
-	/* Mark with fields that we care about. */
-	unsigned int nfcache;
-
-	/* Size of ipt_entry + matches */
-	__u16 target_offset;
-	/* Size of ipt_entry + matches + target */
-	__u16 next_offset;
-
-	/* Back pointer */
-	unsigned int comefrom;
-
-	/* Packet and byte counters. */
-	struct xt_counters counters;
-
-	/* The matches (if any), then the target. */
-	unsigned char elems[0];
-};
-
-/*
- * New IP firewall options for [gs]etsockopt at the RAW IP level.
- * Unlike BSD Linux inherits IP options so you don't have to use a raw
- * socket for this. Instead we check rights in the calls.
- *
- * ATTENTION: check linux/in.h before adding new number here.
- */
-#define IPT_BASE_CTL		64
-
-#define IPT_SO_SET_REPLACE	(IPT_BASE_CTL)
-#define IPT_SO_SET_ADD_COUNTERS	(IPT_BASE_CTL + 1)
-#define IPT_SO_SET_MAX		IPT_SO_SET_ADD_COUNTERS
-
-#define IPT_SO_GET_INFO			(IPT_BASE_CTL)
-#define IPT_SO_GET_ENTRIES		(IPT_BASE_CTL + 1)
-#define IPT_SO_GET_REVISION_MATCH	(IPT_BASE_CTL + 2)
-#define IPT_SO_GET_REVISION_TARGET	(IPT_BASE_CTL + 3)
-#define IPT_SO_GET_MAX			IPT_SO_GET_REVISION_TARGET
-
-/* ICMP matching stuff */
-struct ipt_icmp {
-	__u8 type;				/* type to match */
-	__u8 code[2];				/* range of code */
-	__u8 invflags;				/* Inverse flags */
-};
-
-/* Values for "inv" field for struct ipt_icmp. */
-#define IPT_ICMP_INV	0x01	/* Invert the sense of type/code test */
-
-/* The argument to IPT_SO_GET_INFO */
-struct ipt_getinfo {
-	/* Which table: caller fills this in. */
-	char name[XT_TABLE_MAXNAMELEN];
-
-	/* Kernel fills these in. */
-	/* Which hook entry points are valid: bitmask */
-	unsigned int valid_hooks;
-
-	/* Hook entry points: one per netfilter hook. */
-	unsigned int hook_entry[NF_INET_NUMHOOKS];
-
-	/* Underflow points. */
-	unsigned int underflow[NF_INET_NUMHOOKS];
-
-	/* Number of entries */
-	unsigned int num_entries;
-
-	/* Size of entries. */
-	unsigned int size;
-};
-
-/* The argument to IPT_SO_SET_REPLACE. */
-struct ipt_replace {
-	/* Which table. */
-	char name[XT_TABLE_MAXNAMELEN];
-
-	/* Which hook entry points are valid: bitmask.  You can't
-           change this. */
-	unsigned int valid_hooks;
-
-	/* Number of entries */
-	unsigned int num_entries;
-
-	/* Total size of new entries */
-	unsigned int size;
-
-	/* Hook entry points. */
-	unsigned int hook_entry[NF_INET_NUMHOOKS];
-
-	/* Underflow points. */
-	unsigned int underflow[NF_INET_NUMHOOKS];
-
-	/* Information about old entries: */
-	/* Number of counters (must be equal to current number of entries). */
-	unsigned int num_counters;
-	/* The old entries' counters. */
-	struct xt_counters __user *counters;
-
-	/* The entries (hang off end: not really an array). */
-	struct ipt_entry entries[0];
-};
-
-/* The argument to IPT_SO_GET_ENTRIES. */
-struct ipt_get_entries {
-	/* Which table: user fills this in. */
-	char name[XT_TABLE_MAXNAMELEN];
-
-	/* User fills this in: total entry size. */
-	unsigned int size;
-
-	/* The entries. */
-	struct ipt_entry entrytable[0];
-};
-
-/* Helper functions */
-static __inline__ struct xt_entry_target *
-ipt_get_target(struct ipt_entry *e)
-{
-	return (void *)e + e->target_offset;
-}
-
-/*
- *	Main firewall chains definitions and global var's definitions.
- */
-#ifdef __KERNEL__
 
 #include <linux/init.h>
+#include <uapi/linux/netfilter_ipv4/ip_tables.h>
+
 extern void ipt_init(void) __init;
 
 extern struct xt_table *ipt_register_table(struct net *net,
···
 }
 
 #endif /* CONFIG_COMPAT */
-#endif /*__KERNEL__*/
 #endif /* _IPTABLES_H */

include/uapi/linux/netfilter_ipv4/Kbuild

···
 # UAPI Header export list
+header-y += ip_tables.h
+header-y += ipt_CLUSTERIP.h
+header-y += ipt_ECN.h
+header-y += ipt_LOG.h
+header-y += ipt_REJECT.h
+header-y += ipt_TTL.h
+header-y += ipt_ULOG.h
+header-y += ipt_ah.h
+header-y += ipt_ecn.h
+header-y += ipt_ttl.h

include/uapi/linux/netfilter_ipv4/ip_tables.h

···
+/*
+ * 25-Jul-1998 Major changes to allow for ip chain table
+ *
+ * 3-Jan-2000 Named tables to allow packet selection for different uses.
+ */
+
+/*
+ * 	Format of an IP firewall descriptor
+ *
+ * 	src, dst, src_mask, dst_mask are always stored in network byte order.
+ * 	flags are stored in host byte order (of course).
+ * 	Port numbers are stored in HOST byte order.
+ */
+
+#ifndef _UAPI_IPTABLES_H
+#define _UAPI_IPTABLES_H
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+#include <linux/netfilter_ipv4.h>
+
+#include <linux/netfilter/x_tables.h>
+
+#ifndef __KERNEL__
+#define IPT_FUNCTION_MAXNAMELEN XT_FUNCTION_MAXNAMELEN
+#define IPT_TABLE_MAXNAMELEN XT_TABLE_MAXNAMELEN
+#define ipt_match xt_match
+#define ipt_target xt_target
+#define ipt_table xt_table
+#define ipt_get_revision xt_get_revision
+#define ipt_entry_match xt_entry_match
+#define ipt_entry_target xt_entry_target
+#define ipt_standard_target xt_standard_target
+#define ipt_error_target xt_error_target
+#define ipt_counters xt_counters
+#define IPT_CONTINUE XT_CONTINUE
+#define IPT_RETURN XT_RETURN
+
+/* This group is older than old (iptables < v1.4.0-rc1~89) */
+#include <linux/netfilter/xt_tcpudp.h>
+#define ipt_udp xt_udp
+#define ipt_tcp xt_tcp
+#define IPT_TCP_INV_SRCPT	XT_TCP_INV_SRCPT
+#define IPT_TCP_INV_DSTPT	XT_TCP_INV_DSTPT
+#define IPT_TCP_INV_FLAGS	XT_TCP_INV_FLAGS
+#define IPT_TCP_INV_OPTION	XT_TCP_INV_OPTION
+#define IPT_TCP_INV_MASK	XT_TCP_INV_MASK
+#define IPT_UDP_INV_SRCPT	XT_UDP_INV_SRCPT
+#define IPT_UDP_INV_DSTPT	XT_UDP_INV_DSTPT
+#define IPT_UDP_INV_MASK	XT_UDP_INV_MASK
+
+/* The argument to IPT_SO_ADD_COUNTERS. */
+#define ipt_counters_info xt_counters_info
+/* Standard return verdict, or do jump. */
+#define IPT_STANDARD_TARGET XT_STANDARD_TARGET
+/* Error verdict. */
+#define IPT_ERROR_TARGET XT_ERROR_TARGET
+
+/* fn returns 0 to continue iteration */
+#define IPT_MATCH_ITERATE(e, fn, args...) \
+	XT_MATCH_ITERATE(struct ipt_entry, e, fn, ## args)
+
+/* fn returns 0 to continue iteration */
+#define IPT_ENTRY_ITERATE(entries, size, fn, args...) \
+	XT_ENTRY_ITERATE(struct ipt_entry, entries, size, fn, ## args)
+#endif
+
+/* Yes, Virginia, you have to zero the padding. */
+struct ipt_ip {
+	/* Source and destination IP addr */
+	struct in_addr src, dst;
+	/* Mask for src and dest IP addr */
+	struct in_addr smsk, dmsk;
+	char iniface[IFNAMSIZ], outiface[IFNAMSIZ];
+	unsigned char iniface_mask[IFNAMSIZ], outiface_mask[IFNAMSIZ];
+
+	/* Protocol, 0 = ANY */
+	__u16 proto;
+
+	/* Flags word */
+	__u8 flags;
+	/* Inverse flags */
+	__u8 invflags;
+};
+
+/* Values for "flag" field in struct ipt_ip (general ip structure). */
+#define IPT_F_FRAG		0x01	/* Set if rule is a fragment rule */
+#define IPT_F_GOTO		0x02	/* Set if jump is a goto */
+#define IPT_F_MASK		0x03	/* All possible flag bits mask. */
+
+/* Values for "inv" field in struct ipt_ip. */
+#define IPT_INV_VIA_IN		0x01	/* Invert the sense of IN IFACE. */
+#define IPT_INV_VIA_OUT		0x02	/* Invert the sense of OUT IFACE */
+#define IPT_INV_TOS		0x04	/* Invert the sense of TOS. */
+#define IPT_INV_SRCIP		0x08	/* Invert the sense of SRC IP. */
+#define IPT_INV_DSTIP		0x10	/* Invert the sense of DST OP. */
+#define IPT_INV_FRAG		0x20	/* Invert the sense of FRAG. */
+#define IPT_INV_PROTO		XT_INV_PROTO
+#define IPT_INV_MASK		0x7F	/* All possible flag bits mask. */
+
+/* This structure defines each of the firewall rules.  Consists of 3
+   parts which are 1) general IP header stuff 2) match specific
+   stuff 3) the target to perform if the rule matches */
+struct ipt_entry {
+	struct ipt_ip ip;
+
+	/* Mark with fields that we care about. */
+	unsigned int nfcache;
+
+	/* Size of ipt_entry + matches */
+	__u16 target_offset;
+	/* Size of ipt_entry + matches + target */
+	__u16 next_offset;
+
+	/* Back pointer */
+	unsigned int comefrom;
+
+	/* Packet and byte counters. */
+	struct xt_counters counters;
+
+	/* The matches (if any), then the target. */
+	unsigned char elems[0];
+};
+
+/*
+ * New IP firewall options for [gs]etsockopt at the RAW IP level.
+ * Unlike BSD Linux inherits IP options so you don't have to use a raw
+ * socket for this. Instead we check rights in the calls.
+ *
+ * ATTENTION: check linux/in.h before adding new number here.
+ */
+#define IPT_BASE_CTL		64
+
+#define IPT_SO_SET_REPLACE	(IPT_BASE_CTL)
+#define IPT_SO_SET_ADD_COUNTERS	(IPT_BASE_CTL + 1)
+#define IPT_SO_SET_MAX		IPT_SO_SET_ADD_COUNTERS
+
+#define IPT_SO_GET_INFO			(IPT_BASE_CTL)
+#define IPT_SO_GET_ENTRIES		(IPT_BASE_CTL + 1)
+#define IPT_SO_GET_REVISION_MATCH	(IPT_BASE_CTL + 2)
+#define IPT_SO_GET_REVISION_TARGET	(IPT_BASE_CTL + 3)
+#define IPT_SO_GET_MAX			IPT_SO_GET_REVISION_TARGET
+
+/* ICMP matching stuff */
+struct ipt_icmp {
+	__u8 type;				/* type to match */
+	__u8 code[2];				/* range of code */
+	__u8 invflags;				/* Inverse flags */
+};
+
+/* Values for "inv" field for struct ipt_icmp. */
+#define IPT_ICMP_INV	0x01	/* Invert the sense of type/code test */
+
+/* The argument to IPT_SO_GET_INFO */
+struct ipt_getinfo {
+	/* Which table: caller fills this in. */
+	char name[XT_TABLE_MAXNAMELEN];
+
+	/* Kernel fills these in. */
+	/* Which hook entry points are valid: bitmask */
+	unsigned int valid_hooks;
+
+	/* Hook entry points: one per netfilter hook. */
+	unsigned int hook_entry[NF_INET_NUMHOOKS];
+
+	/* Underflow points. */
+	unsigned int underflow[NF_INET_NUMHOOKS];
+
+	/* Number of entries */
+	unsigned int num_entries;
+
+	/* Size of entries. */
+	unsigned int size;
+};
+
+/* The argument to IPT_SO_SET_REPLACE. */
+struct ipt_replace {
+	/* Which table. */
+	char name[XT_TABLE_MAXNAMELEN];
+
+	/* Which hook entry points are valid: bitmask.  You can't
+           change this. */
+	unsigned int valid_hooks;
+
+	/* Number of entries */
+	unsigned int num_entries;
+
+	/* Total size of new entries */
+	unsigned int size;
+
+	/* Hook entry points. */
+	unsigned int hook_entry[NF_INET_NUMHOOKS];
+
+	/* Underflow points. */
+	unsigned int underflow[NF_INET_NUMHOOKS];
+
+	/* Information about old entries: */
+	/* Number of counters (must be equal to current number of entries). */
+	unsigned int num_counters;
+	/* The old entries' counters. */
+	struct xt_counters __user *counters;
+
+	/* The entries (hang off end: not really an array). */
+	struct ipt_entry entries[0];
+};
+
+/* The argument to IPT_SO_GET_ENTRIES. */
+struct ipt_get_entries {
+	/* Which table: user fills this in. */
+	char name[XT_TABLE_MAXNAMELEN];
+
+	/* User fills this in: total entry size. */
+	unsigned int size;
+
+	/* The entries. */
+	struct ipt_entry entrytable[0];
+};
+
+/* Helper functions */
+static __inline__ struct xt_entry_target *
+ipt_get_target(struct ipt_entry *e)
+{
+	return (void *)e + e->target_offset;
+}
+
+/*
+ *	Main firewall chains definitions and global var's definitions.
+ */
+#endif /* _UAPI_IPTABLES_H */