.-.-.-.-.-

ip6_tables.h000064400000017513151707172760006771 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * 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 IP6 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 _IP6_TABLES_H
#define _IP6_TABLES_H

#include <linux/types.h>

#include <linux/if.h>
#include <linux/netfilter_ipv6.h>

#include <linux/netfilter/x_tables.h>

#define IP6T_FUNCTION_MAXNAMELEN XT_FUNCTION_MAXNAMELEN
#define IP6T_TABLE_MAXNAMELEN XT_TABLE_MAXNAMELEN
#define ip6t_match xt_match
#define ip6t_target xt_target
#define ip6t_table xt_table
#define ip6t_get_revision xt_get_revision
#define ip6t_entry_match xt_entry_match
#define ip6t_entry_target xt_entry_target
#define ip6t_standard_target xt_standard_target
#define ip6t_error_target xt_error_target
#define ip6t_counters xt_counters
#define IP6T_CONTINUE XT_CONTINUE
#define IP6T_RETURN XT_RETURN

/* Pre-iptables-1.4.0 */
#include <linux/netfilter/xt_tcpudp.h>
#define ip6t_tcp xt_tcp
#define ip6t_udp xt_udp
#define IP6T_TCP_INV_SRCPT	XT_TCP_INV_SRCPT
#define IP6T_TCP_INV_DSTPT	XT_TCP_INV_DSTPT
#define IP6T_TCP_INV_FLAGS	XT_TCP_INV_FLAGS
#define IP6T_TCP_INV_OPTION	XT_TCP_INV_OPTION
#define IP6T_TCP_INV_MASK	XT_TCP_INV_MASK
#define IP6T_UDP_INV_SRCPT	XT_UDP_INV_SRCPT
#define IP6T_UDP_INV_DSTPT	XT_UDP_INV_DSTPT
#define IP6T_UDP_INV_MASK	XT_UDP_INV_MASK

#define ip6t_counters_info xt_counters_info
#define IP6T_STANDARD_TARGET XT_STANDARD_TARGET
#define IP6T_ERROR_TARGET XT_ERROR_TARGET
#define IP6T_MATCH_ITERATE(e, fn, args...) \
	XT_MATCH_ITERATE(struct ip6t_entry, e, fn, ## args)
#define IP6T_ENTRY_ITERATE(entries, size, fn, args...) \
	XT_ENTRY_ITERATE(struct ip6t_entry, entries, size, fn, ## args)

/* Yes, Virginia, you have to zero the padding. */
struct ip6t_ip6 {
	/* Source and destination IP6 addr */
	struct in6_addr src, dst;		
	/* Mask for src and dest IP6 addr */
	struct in6_addr smsk, dmsk;
	char iniface[IFNAMSIZ], outiface[IFNAMSIZ];
	unsigned char iniface_mask[IFNAMSIZ], outiface_mask[IFNAMSIZ];

/* Upper protocol number
	 * - The allowed value is 0 (any) or protocol number of last parsable
	 *   header, which is 50 (ESP), 59 (No Next Header), 135 (MH), or
	 *   the non IPv6 extension headers.
	 * - The protocol numbers of IPv6 extension headers except of ESP and
	 *   MH do not match any packets.
	 * - You also need to set IP6T_FLAGS_PROTO to "flags" to check protocol.
	 */
	__u16 proto;
	/* TOS to match iff flags & IP6T_F_TOS */
	__u8 tos;

/* Flags word */
	__u8 flags;
	/* Inverse flags */
	__u8 invflags;
};

/* Values for "flag" field in struct ip6t_ip6 (general ip6 structure). */
#define IP6T_F_PROTO		0x01	/* Set if rule cares about upper 
					   protocols */
#define IP6T_F_TOS		0x02	/* Match the TOS. */
#define IP6T_F_GOTO		0x04	/* Set if jump is a goto */
#define IP6T_F_MASK		0x07	/* All possible flag bits mask. */

/* Values for "inv" field in struct ip6t_ip6. */
#define IP6T_INV_VIA_IN		0x01	/* Invert the sense of IN IFACE. */
#define IP6T_INV_VIA_OUT		0x02	/* Invert the sense of OUT IFACE */
#define IP6T_INV_TOS		0x04	/* Invert the sense of TOS. */
#define IP6T_INV_SRCIP		0x08	/* Invert the sense of SRC IP. */
#define IP6T_INV_DSTIP		0x10	/* Invert the sense of DST OP. */
#define IP6T_INV_FRAG		0x20	/* Invert the sense of FRAG. */
#define IP6T_INV_PROTO		XT_INV_PROTO
#define IP6T_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 ip6t_entry {
	struct ip6t_ip6 ipv6;

/* 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];
};

/* Standard entry */
struct ip6t_standard {
	struct ip6t_entry entry;
	struct xt_standard_target target;
};

struct ip6t_error {
	struct ip6t_entry entry;
	struct xt_error_target target;
};

#define IP6T_ENTRY_INIT(__size)						       \
{									       \
	.target_offset	= sizeof(struct ip6t_entry),			       \
	.next_offset	= (__size),					       \
}

#define IP6T_STANDARD_INIT(__verdict)					       \
{									       \
	.entry		= IP6T_ENTRY_INIT(sizeof(struct ip6t_standard)),       \
	.target		= XT_TARGET_INIT(XT_STANDARD_TARGET,		       \
					 sizeof(struct xt_standard_target)),   \
	.target.verdict	= -(__verdict) - 1,				       \
}

#define IP6T_ERROR_INIT							       \
{									       \
	.entry		= IP6T_ENTRY_INIT(sizeof(struct ip6t_error)),	       \
	.target		= XT_TARGET_INIT(XT_ERROR_TARGET,		       \
					 sizeof(struct xt_error_target)),      \
	.target.errorname = "ERROR",					       \
}

/*
 * 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/in6.h before adding new number here.
 */
#define IP6T_BASE_CTL			64

#define IP6T_SO_SET_REPLACE		(IP6T_BASE_CTL)
#define IP6T_SO_SET_ADD_COUNTERS	(IP6T_BASE_CTL + 1)
#define IP6T_SO_SET_MAX			IP6T_SO_SET_ADD_COUNTERS

#define IP6T_SO_GET_INFO		(IP6T_BASE_CTL)
#define IP6T_SO_GET_ENTRIES		(IP6T_BASE_CTL + 1)
#define IP6T_SO_GET_REVISION_MATCH	(IP6T_BASE_CTL + 4)
#define IP6T_SO_GET_REVISION_TARGET	(IP6T_BASE_CTL + 5)
#define IP6T_SO_GET_MAX			IP6T_SO_GET_REVISION_TARGET

/* obtain original address if REDIRECT'd connection */
#define IP6T_SO_ORIGINAL_DST            80

/* ICMP matching stuff */
struct ip6t_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 IP6T_ICMP_INV	0x01	/* Invert the sense of type/code test */

/* The argument to IP6T_SO_GET_INFO */
struct ip6t_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 IP6T_SO_SET_REPLACE. */
struct ip6t_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 *counters;

/* The entries (hang off end: not really an array). */
	struct ip6t_entry entries[0];
};

/* The argument to IP6T_SO_GET_ENTRIES. */
struct ip6t_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 ip6t_entry entrytable[0];
};

/* Helper functions */
static __inline__ struct xt_entry_target *
ip6t_get_target(struct ip6t_entry *e)
{
	return (void *)e + e->target_offset;
}

/*
 *	Main firewall chains definitions and global var's definitions.
 */

#endif /* _IP6_TABLES_H */
ip6t_HL.h000064400000000630151707172760006176 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/* Hop Limit modification module for ip6tables
 * Maciej Soltysiak <solt@dns.toxicfilms.tv>
 * Based on HW's TTL module */

#ifndef _IP6T_HL_H
#define _IP6T_HL_H

#include <linux/types.h>

enum {
	IP6T_HL_SET = 0,
	IP6T_HL_INC,
	IP6T_HL_DEC
};

#define IP6T_HL_MAXMODE	IP6T_HL_DEC

struct ip6t_HL_info {
	__u8	mode;
	__u8	hop_limit;
};

#endif
ip6t_LOG.h000064400000001332151707172760006314 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _IP6T_LOG_H
#define _IP6T_LOG_H

#warning "Please update iptables, this file will be removed soon!"

/* make sure not to change this without changing netfilter.h:NF_LOG_* (!) */
#define IP6T_LOG_TCPSEQ		0x01	/* Log TCP sequence numbers */
#define IP6T_LOG_TCPOPT		0x02	/* Log TCP options */
#define IP6T_LOG_IPOPT		0x04	/* Log IP options */
#define IP6T_LOG_UID		0x08	/* Log UID owning local socket */
#define IP6T_LOG_NFLOG		0x10	/* Unsupported, don't use */
#define IP6T_LOG_MACDECODE	0x20	/* Decode MAC header */
#define IP6T_LOG_MASK		0x2f

struct ip6t_log_info {
	unsigned char level;
	unsigned char logflags;
	char prefix[30];
};

#endif /*_IPT_LOG_H*/
ip6t_NPT.h000064400000000620151707172760006333 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __NETFILTER_IP6T_NPT
#define __NETFILTER_IP6T_NPT

#include <linux/types.h>
#include <linux/netfilter.h>

struct ip6t_npt_tginfo {
	union nf_inet_addr	src_pfx;
	union nf_inet_addr	dst_pfx;
	__u8			src_pfx_len;
	__u8			dst_pfx_len;
	/* Used internally by the kernel */
	__sum16			adjustment;
};

#endif /* __NETFILTER_IP6T_NPT */
ip6t_REJECT.h000064400000000726151707172760006655 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _IP6T_REJECT_H
#define _IP6T_REJECT_H

#include <linux/types.h>

enum ip6t_reject_with {
	IP6T_ICMP6_NO_ROUTE,
	IP6T_ICMP6_ADM_PROHIBITED,
	IP6T_ICMP6_NOT_NEIGHBOUR,
	IP6T_ICMP6_ADDR_UNREACH,
	IP6T_ICMP6_PORT_UNREACH,
	IP6T_ICMP6_ECHOREPLY,
	IP6T_TCP_RESET,
	IP6T_ICMP6_POLICY_FAIL,
	IP6T_ICMP6_REJECT_ROUTE
};

struct ip6t_reject_info {
	__u32	with;	/* reject type */
};

#endif /*_IP6T_REJECT_H*/
ip6t_ah.h000064400000001221151707172760006260 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _IP6T_AH_H
#define _IP6T_AH_H

#include <linux/types.h>

struct ip6t_ah {
	__u32 spis[2];			/* Security Parameter Index */
	__u32 hdrlen;			/* Header Length */
	__u8  hdrres;			/* Test of the Reserved Filed */
	__u8  invflags;			/* Inverse flags */
};

#define IP6T_AH_SPI 0x01
#define IP6T_AH_LEN 0x02
#define IP6T_AH_RES 0x04

/* Values for "invflags" field in struct ip6t_ah. */
#define IP6T_AH_INV_SPI		0x01	/* Invert the sense of spi. */
#define IP6T_AH_INV_LEN		0x02	/* Invert the sense of length. */
#define IP6T_AH_INV_MASK	0x03	/* All possible flags. */

#endif /*_IP6T_AH_H*/
ip6t_frag.h000064400000001350151707172760006612 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _IP6T_FRAG_H
#define _IP6T_FRAG_H

#include <linux/types.h>

struct ip6t_frag {
	__u32 ids[2];			/* Identification range */
	__u32 hdrlen;			/* Header Length */
	__u8  flags;			/* Flags */
	__u8  invflags;			/* Inverse flags */
};

#define IP6T_FRAG_IDS 		0x01
#define IP6T_FRAG_LEN 		0x02
#define IP6T_FRAG_RES 		0x04
#define IP6T_FRAG_FST 		0x08
#define IP6T_FRAG_MF  		0x10
#define IP6T_FRAG_NMF  		0x20

/* Values for "invflags" field in struct ip6t_frag. */
#define IP6T_FRAG_INV_IDS	0x01	/* Invert the sense of ids. */
#define IP6T_FRAG_INV_LEN	0x02	/* Invert the sense of length. */
#define IP6T_FRAG_INV_MASK	0x03	/* All possible flags. */

#endif /*_IP6T_FRAG_H*/
ip6t_hl.h000064400000000712151707172760006277 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/* ip6tables module for matching the Hop Limit value
 * Maciej Soltysiak <solt@dns.toxicfilms.tv>
 * Based on HW's ttl module */

#ifndef _IP6T_HL_H
#define _IP6T_HL_H

#include <linux/types.h>

enum {
	IP6T_HL_EQ = 0,		/* equals */
	IP6T_HL_NE,		/* not equals */
	IP6T_HL_LT,		/* less than */
	IP6T_HL_GT,		/* greater than */
};

struct ip6t_hl_info {
	__u8	mode;
	__u8	hop_limit;
};

#endif
ip6t_ipv6header.h000064400000001205151707172760007727 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/* ipv6header match - matches IPv6 packets based
on whether they contain certain headers */

/* Original idea: Brad Chapman 
 * Rewritten by: Andras Kis-Szabo <kisza@sch.bme.hu> */

#ifndef __IPV6HEADER_H
#define __IPV6HEADER_H

#include <linux/types.h>

struct ip6t_ipv6header_info {
	__u8 matchflags;
	__u8 invflags;
	__u8 modeflag;
};

#define MASK_HOPOPTS    128
#define MASK_DSTOPTS    64
#define MASK_ROUTING    32
#define MASK_FRAGMENT   16
#define MASK_AH         8
#define MASK_ESP        4
#define MASK_NONE       2
#define MASK_PROTO      1

#endif /* __IPV6HEADER_H */
ip6t_mh.h000064400000000667151707172760006311 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _IP6T_MH_H
#define _IP6T_MH_H

#include <linux/types.h>

/* MH matching stuff */
struct ip6t_mh {
	__u8 types[2];	/* MH type range */
	__u8 invflags;	/* Inverse flags */
};

/* Values for "invflags" field in struct ip6t_mh. */
#define IP6T_MH_INV_TYPE	0x01	/* Invert the sense of type. */
#define IP6T_MH_INV_MASK	0x01	/* All possible flags. */

#endif /*_IP6T_MH_H*/
ip6t_opts.h000064400000001211151707172760006654 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _IP6T_OPTS_H
#define _IP6T_OPTS_H

#include <linux/types.h>

#define IP6T_OPTS_OPTSNR 16

struct ip6t_opts {
	__u32 hdrlen;			/* Header Length */
	__u8 flags;				/*  */
	__u8 invflags;			/* Inverse flags */
	__u16 opts[IP6T_OPTS_OPTSNR];	/* opts */
	__u8 optsnr;			/* Nr of OPts */
};

#define IP6T_OPTS_LEN 		0x01
#define IP6T_OPTS_OPTS 		0x02
#define IP6T_OPTS_NSTRICT	0x04

/* Values for "invflags" field in struct ip6t_rt. */
#define IP6T_OPTS_INV_LEN	0x01	/* Invert the sense of length. */
#define IP6T_OPTS_INV_MASK	0x01	/* All possible flags. */

#endif /*_IP6T_OPTS_H*/
ip6t_rt.h000064400000001731151707172760006323 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _IP6T_RT_H
#define _IP6T_RT_H

#include <linux/types.h>
#include <linux/in6.h>

#define IP6T_RT_HOPS 16

struct ip6t_rt {
	__u32 rt_type;			/* Routing Type */
	__u32 segsleft[2];			/* Segments Left */
	__u32 hdrlen;			/* Header Length */
	__u8  flags;			/*  */
	__u8  invflags;			/* Inverse flags */
	struct in6_addr addrs[IP6T_RT_HOPS];	/* Hops */
	__u8 addrnr;			/* Nr of Addresses */
};

#define IP6T_RT_TYP 		0x01
#define IP6T_RT_SGS 		0x02
#define IP6T_RT_LEN 		0x04
#define IP6T_RT_RES 		0x08
#define IP6T_RT_FST_MASK	0x30
#define IP6T_RT_FST 		0x10
#define IP6T_RT_FST_NSTRICT	0x20

/* Values for "invflags" field in struct ip6t_rt. */
#define IP6T_RT_INV_TYP		0x01	/* Invert the sense of type. */
#define IP6T_RT_INV_SGS		0x02	/* Invert the sense of Segments. */
#define IP6T_RT_INV_LEN		0x04	/* Invert the sense of length. */
#define IP6T_RT_INV_MASK	0x07	/* All possible flags. */

#endif /*_IP6T_RT_H*/
ip6t_srh.h000064400000006351151707172760006475 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _IP6T_SRH_H
#define _IP6T_SRH_H

#include <linux/types.h>
#include <linux/netfilter.h>

/* Values for "mt_flags" field in struct ip6t_srh */
#define IP6T_SRH_NEXTHDR        0x0001
#define IP6T_SRH_LEN_EQ         0x0002
#define IP6T_SRH_LEN_GT         0x0004
#define IP6T_SRH_LEN_LT         0x0008
#define IP6T_SRH_SEGS_EQ        0x0010
#define IP6T_SRH_SEGS_GT        0x0020
#define IP6T_SRH_SEGS_LT        0x0040
#define IP6T_SRH_LAST_EQ        0x0080
#define IP6T_SRH_LAST_GT        0x0100
#define IP6T_SRH_LAST_LT        0x0200
#define IP6T_SRH_TAG            0x0400
#define IP6T_SRH_PSID           0x0800
#define IP6T_SRH_NSID           0x1000
#define IP6T_SRH_LSID           0x2000
#define IP6T_SRH_MASK           0x3FFF

/* Values for "mt_invflags" field in struct ip6t_srh */
#define IP6T_SRH_INV_NEXTHDR    0x0001
#define IP6T_SRH_INV_LEN_EQ     0x0002
#define IP6T_SRH_INV_LEN_GT     0x0004
#define IP6T_SRH_INV_LEN_LT     0x0008
#define IP6T_SRH_INV_SEGS_EQ    0x0010
#define IP6T_SRH_INV_SEGS_GT    0x0020
#define IP6T_SRH_INV_SEGS_LT    0x0040
#define IP6T_SRH_INV_LAST_EQ    0x0080
#define IP6T_SRH_INV_LAST_GT    0x0100
#define IP6T_SRH_INV_LAST_LT    0x0200
#define IP6T_SRH_INV_TAG        0x0400
#define IP6T_SRH_INV_PSID       0x0800
#define IP6T_SRH_INV_NSID       0x1000
#define IP6T_SRH_INV_LSID       0x2000
#define IP6T_SRH_INV_MASK       0x3FFF

/**
 *      struct ip6t_srh - SRH match options
 *      @ next_hdr: Next header field of SRH
 *      @ hdr_len: Extension header length field of SRH
 *      @ segs_left: Segments left field of SRH
 *      @ last_entry: Last entry field of SRH
 *      @ tag: Tag field of SRH
 *      @ mt_flags: match options
 *      @ mt_invflags: Invert the sense of match options
 */

struct ip6t_srh {
	__u8                    next_hdr;
	__u8                    hdr_len;
	__u8                    segs_left;
	__u8                    last_entry;
	__u16                   tag;
	__u16                   mt_flags;
	__u16                   mt_invflags;
};

/**
 *      struct ip6t_srh1 - SRH match options (revision 1)
 *      @ next_hdr: Next header field of SRH
 *      @ hdr_len: Extension header length field of SRH
 *      @ segs_left: Segments left field of SRH
 *      @ last_entry: Last entry field of SRH
 *      @ tag: Tag field of SRH
 *      @ psid_addr: Address of previous SID in SRH SID list
 *      @ nsid_addr: Address of NEXT SID in SRH SID list
 *      @ lsid_addr: Address of LAST SID in SRH SID list
 *      @ psid_msk: Mask of previous SID in SRH SID list
 *      @ nsid_msk: Mask of next SID in SRH SID list
 *      @ lsid_msk: MAsk of last SID in SRH SID list
 *      @ mt_flags: match options
 *      @ mt_invflags: Invert the sense of match options
 */

struct ip6t_srh1 {
	__u8                    next_hdr;
	__u8                    hdr_len;
	__u8                    segs_left;
	__u8                    last_entry;
	__u16                   tag;
	struct in6_addr         psid_addr;
	struct in6_addr         nsid_addr;
	struct in6_addr         lsid_addr;
	struct in6_addr         psid_msk;
	struct in6_addr         nsid_msk;
	struct in6_addr         lsid_msk;
	__u16                   mt_flags;
	__u16                   mt_invflags;
};

#endif /*_IP6T_SRH_H*/

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