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ðŸ“ ipset
ðŸ“„ nf_conntrack_common.h(4.48 KB)
ðŸ“„ nf_conntrack_ftp.h(438 B)
ðŸ“„ nf_conntrack_sctp.h(576 B)
ðŸ“„ nf_conntrack_tcp.h(1.38 KB)
ðŸ“„ nf_conntrack_tuple_common.h(896 B)
ðŸ“„ nf_log.h(538 B)
ðŸ“„ nf_nat.h(1.49 KB)
ðŸ“„ nf_osf.h(1.9 KB)
ðŸ“„ nf_tables.h(48.24 KB)
ðŸ“„ nf_tables_compat.h(731 B)
ðŸ“„ nfnetlink.h(2.37 KB)
ðŸ“„ nfnetlink_acct.h(900 B)
ðŸ“„ nfnetlink_compat.h(2.39 KB)
ðŸ“„ nfnetlink_conntrack.h(6.02 KB)
ðŸ“„ nfnetlink_cthelper.h(1.17 KB)
ðŸ“„ nfnetlink_cttimeout.h(2.86 KB)
ðŸ“„ nfnetlink_log.h(2.73 KB)
ðŸ“„ nfnetlink_queue.h(3.42 KB)
ðŸ“„ x_tables.h(4.36 KB)
ðŸ“„ xt_AUDIT.h(718 B)
ðŸ“„ xt_CHECKSUM.h(563 B)
ðŸ“„ xt_CLASSIFY.h(217 B)
ðŸ“„ xt_CONNMARK.h(199 B)
ðŸ“„ xt_CONNSECMARK.h(301 B)
ðŸ“„ xt_CT.h(853 B)
ðŸ“„ xt_DSCP.h(697 B)
ðŸ“„ xt_HMARK.h(933 B)
ðŸ“„ xt_IDLETIMER.h(1.36 KB)
ðŸ“„ xt_LED.h(470 B)
ðŸ“„ xt_LOG.h(642 B)
ðŸ“„ xt_MARK.h(184 B)
ðŸ“„ xt_NFLOG.h(556 B)
ðŸ“„ xt_NFQUEUE.h(779 B)
ðŸ“„ xt_RATEEST.h(390 B)
ðŸ“„ xt_SECMARK.h(648 B)
ðŸ“„ xt_SYNPROXY.h(419 B)
ðŸ“„ xt_TCPMSS.h(235 B)
ðŸ“„ xt_TCPOPTSTRIP.h(407 B)
ðŸ“„ xt_TEE.h(333 B)
ðŸ“„ xt_TPROXY.h(575 B)
ðŸ“„ xt_addrtype.h(1.06 KB)
ðŸ“„ xt_bpf.h(935 B)
ðŸ“„ xt_cgroup.h(463 B)
ðŸ“„ xt_cluster.h(374 B)
ðŸ“„ xt_comment.h(230 B)
ðŸ“„ xt_connbytes.h(577 B)
ðŸ“„ xt_connlabel.h(360 B)
ðŸ“„ xt_connlimit.h(575 B)
ðŸ“„ xt_connmark.h(900 B)
ðŸ“„ xt_conntrack.h(2.5 KB)
ðŸ“„ xt_cpu.h(199 B)
ðŸ“„ xt_dccp.h(483 B)
ðŸ“„ xt_devgroup.h(429 B)
ðŸ“„ xt_dscp.h(701 B)
ðŸ“„ xt_ecn.h(736 B)
ðŸ“„ xt_esp.h(418 B)
ðŸ“„ xt_hashlimit.h(3.18 KB)
ðŸ“„ xt_helper.h(188 B)
ðŸ“„ xt_ipcomp.h(485 B)
ðŸ“„ xt_iprange.h(581 B)
ðŸ“„ xt_ipvs.h(680 B)
ðŸ“„ xt_l2tp.h(739 B)
ðŸ“„ xt_length.h(221 B)
ðŸ“„ xt_limit.h(673 B)
ðŸ“„ xt_mac.h(227 B)
ðŸ“„ xt_mark.h(260 B)
ðŸ“„ xt_multiport.h(721 B)
ðŸ“„ xt_nfacct.h(301 B)
ðŸ“„ xt_osf.h(1.79 KB)
ðŸ“„ xt_owner.h(420 B)
ðŸ“„ xt_physdev.h(553 B)
ðŸ“„ xt_pkttype.h(188 B)
ðŸ“„ xt_policy.h(1022 B)
ðŸ“„ xt_quota.h(400 B)
ðŸ“„ xt_rateest.h(859 B)
ðŸ“„ xt_realm.h(220 B)
ðŸ“„ xt_recent.h(1.03 KB)
ðŸ“„ xt_rpfilter.h(320 B)
ðŸ“„ xt_sctp.h(2.27 KB)
ðŸ“„ xt_set.h(1.78 KB)
ðŸ“„ xt_socket.h(640 B)
ðŸ“„ xt_state.h(331 B)
ðŸ“„ xt_statistic.h(716 B)
ðŸ“„ xt_string.h(664 B)
ðŸ“„ xt_tcpmss.h(253 B)
ðŸ“„ xt_tcpudp.h(1.22 KB)
ðŸ“„ xt_time.h(730 B)
ðŸ“„ xt_u32.h(752 B)

Editing: x_tables.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _X_TABLES_H
#define _X_TABLES_H
#include <linux/kernel.h>
#include <linux/types.h>

#define XT_FUNCTION_MAXNAMELEN 30
#define XT_EXTENSION_MAXNAMELEN 29
#define XT_TABLE_MAXNAMELEN 32

struct xt_entry_match {
	union {
		struct {
			__u16 match_size;

/* Used by userspace */
			char name[XT_EXTENSION_MAXNAMELEN];
			__u8 revision;
		} user;
		struct {
			__u16 match_size;

/* Used inside the kernel */
			struct xt_match *match;
		} kernel;

/* Total length */
		__u16 match_size;
	} u;

unsigned char data[0];
};

struct xt_entry_target {
	union {
		struct {
			__u16 target_size;

/* Used by userspace */
			char name[XT_EXTENSION_MAXNAMELEN];
			__u8 revision;
		} user;
		struct {
			__u16 target_size;

/* Used inside the kernel */
			struct xt_target *target;
		} kernel;

/* Total length */
		__u16 target_size;
	} u;

unsigned char data[0];
};

#define XT_TARGET_INIT(__name, __size)					       \
{									       \
	.target.u.user = {						       \
		.target_size	= XT_ALIGN(__size),			       \
		.name		= __name,				       \
	},								       \
}

struct xt_standard_target {
	struct xt_entry_target target;
	int verdict;
};

struct xt_error_target {
	struct xt_entry_target target;
	char errorname[XT_FUNCTION_MAXNAMELEN];
};

/* The argument to IPT_SO_GET_REVISION_*.  Returns highest revision
 * kernel supports, if >= revision. */
struct xt_get_revision {
	char name[XT_EXTENSION_MAXNAMELEN];
	__u8 revision;
};

/* CONTINUE verdict for targets */
#define XT_CONTINUE 0xFFFFFFFF

/* For standard target */
#define XT_RETURN (-NF_REPEAT - 1)

/* this is a dummy structure to find out the alignment requirement for a struct
 * containing all the fundamental data types that are used in ipt_entry,
 * ip6t_entry and arpt_entry.  This sucks, and it is a hack.  It will be my
 * personal pleasure to remove it -HW
 */
struct _xt_align {
	__u8 u8;
	__u16 u16;
	__u32 u32;
	__u64 u64;
};

#define XT_ALIGN(s) __ALIGN_KERNEL((s), __alignof__(struct _xt_align))

/* Standard return verdict, or do jump. */
#define XT_STANDARD_TARGET ""
/* Error verdict. */
#define XT_ERROR_TARGET "ERROR"

#define SET_COUNTER(c,b,p) do { (c).bcnt = (b); (c).pcnt = (p); } while(0)
#define ADD_COUNTER(c,b,p) do { (c).bcnt += (b); (c).pcnt += (p); } while(0)

struct xt_counters {
	__u64 pcnt, bcnt;			/* Packet and byte counters */
};

/* The argument to IPT_SO_ADD_COUNTERS. */
struct xt_counters_info {
	/* Which table. */
	char name[XT_TABLE_MAXNAMELEN];

unsigned int num_counters;

/* The counters (actually `number' of these). */
	struct xt_counters counters[0];
};

#define XT_INV_PROTO		0x40	/* Invert the sense of PROTO. */

/* fn returns 0 to continue iteration */
#define XT_MATCH_ITERATE(type, e, fn, args...)			\
({								\
	unsigned int __i;					\
	int __ret = 0;						\
	struct xt_entry_match *__m;				\
								\
	for (__i = sizeof(type);				\
	     __i < (e)->target_offset;				\
	     __i += __m->u.match_size) {			\
		__m = (void *)e + __i;				\
								\
		__ret = fn(__m , ## args);			\
		if (__ret != 0)					\
			break;					\
	}							\
	__ret;							\
})

/* fn returns 0 to continue iteration */
#define XT_ENTRY_ITERATE_CONTINUE(type, entries, size, n, fn, args...) \
({								\
	unsigned int __i, __n;					\
	int __ret = 0;						\
	type *__entry;						\
								\
	for (__i = 0, __n = 0; __i < (size);			\
	     __i += __entry->next_offset, __n++) { 		\
		__entry = (void *)(entries) + __i;		\
		if (__n < n)					\
			continue;				\
								\
		__ret = fn(__entry , ## args);			\
		if (__ret != 0)					\
			break;					\
	}							\
	__ret;							\
})

/* fn returns 0 to continue iteration */
#define XT_ENTRY_ITERATE(type, entries, size, fn, args...) \
	XT_ENTRY_ITERATE_CONTINUE(type, entries, size, 0, fn, args)

/* pos is normally a struct ipt_entry/ip6t_entry/etc. */
#define xt_entry_foreach(pos, ehead, esize) \
	for ((pos) = (typeof(pos))(ehead); \
	     (pos) < (typeof(pos))((char *)(ehead) + (esize)); \
	     (pos) = (typeof(pos))((char *)(pos) + (pos)->next_offset))

/* can only be xt_entry_match, so no use of typeof here */
#define xt_ematch_foreach(pos, entry) \
	for ((pos) = (struct xt_entry_match *)entry->elems; \
	     (pos) < (struct xt_entry_match *)((char *)(entry) + \
	             (entry)->target_offset); \
	     (pos) = (struct xt_entry_match *)((char *)(pos) + \
	             (pos)->u.match_size))

#endif /* _X_TABLES_H */

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Editing: x_tables.h

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