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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
* Patrick Schaaf <bof@bof.de>
* Martin Josefsson <gandalf@wlug.westbo.se>
* Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _IP_SET_H
#define _IP_SET_H
#include <linux/types.h>
/* The protocol versions */
#define IPSET_PROTOCOL 7
#define IPSET_PROTOCOL_MIN 6
/* The max length of strings including NUL: set and type identifiers */
#define IPSET_MAXNAMELEN 32
/* The maximum permissible comment length we will accept over netlink */
#define IPSET_MAX_COMMENT_SIZE 255
/* Message types and commands */
enum ipset_cmd {
IPSET_CMD_NONE,
IPSET_CMD_PROTOCOL, /* 1: Return protocol version */
IPSET_CMD_CREATE, /* 2: Create a new (empty) set */
IPSET_CMD_DESTROY, /* 3: Destroy a (empty) set */
IPSET_CMD_FLUSH, /* 4: Remove all elements from a set */
IPSET_CMD_RENAME, /* 5: Rename a set */
IPSET_CMD_SWAP, /* 6: Swap two sets */
IPSET_CMD_LIST, /* 7: List sets */
IPSET_CMD_SAVE, /* 8: Save sets */
IPSET_CMD_ADD, /* 9: Add an element to a set */
IPSET_CMD_DEL, /* 10: Delete an element from a set */
IPSET_CMD_TEST, /* 11: Test an element in a set */
IPSET_CMD_HEADER, /* 12: Get set header data only */
IPSET_CMD_TYPE, /* 13: Get set type */
IPSET_CMD_GET_BYNAME, /* 14: Get set index by name */
IPSET_CMD_GET_BYINDEX, /* 15: Get set name by index */
IPSET_MSG_MAX, /* Netlink message commands */
/* Commands in userspace: */
IPSET_CMD_RESTORE = IPSET_MSG_MAX, /* 16: Enter restore mode */
IPSET_CMD_HELP, /* 17: Get help */
IPSET_CMD_VERSION, /* 18: Get program version */
IPSET_CMD_QUIT, /* 19: Quit from interactive mode */
IPSET_CMD_MAX,
IPSET_CMD_COMMIT = IPSET_CMD_MAX, /* 20: Commit buffered commands */
};
/* Attributes at command level */
enum {
IPSET_ATTR_UNSPEC,
IPSET_ATTR_PROTOCOL, /* 1: Protocol version */
IPSET_ATTR_SETNAME, /* 2: Name of the set */
IPSET_ATTR_TYPENAME, /* 3: Typename */
IPSET_ATTR_SETNAME2 = IPSET_ATTR_TYPENAME, /* Setname at rename/swap */
IPSET_ATTR_REVISION, /* 4: Settype revision */
IPSET_ATTR_FAMILY, /* 5: Settype family */
IPSET_ATTR_FLAGS, /* 6: Flags at command level */
IPSET_ATTR_DATA, /* 7: Nested attributes */
IPSET_ATTR_ADT, /* 8: Multiple data containers */
IPSET_ATTR_LINENO, /* 9: Restore lineno */
IPSET_ATTR_PROTOCOL_MIN, /* 10: Minimal supported version number */
IPSET_ATTR_REVISION_MIN = IPSET_ATTR_PROTOCOL_MIN, /* type rev min */
IPSET_ATTR_INDEX, /* 11: Kernel index of set */
__IPSET_ATTR_CMD_MAX,
};
#define IPSET_ATTR_CMD_MAX (__IPSET_ATTR_CMD_MAX - 1)
/* CADT specific attributes */
enum {
IPSET_ATTR_IP = IPSET_ATTR_UNSPEC + 1,
IPSET_ATTR_IP_FROM = IPSET_ATTR_IP,
IPSET_ATTR_IP_TO, /* 2 */
IPSET_ATTR_CIDR, /* 3 */
IPSET_ATTR_PORT, /* 4 */
IPSET_ATTR_PORT_FROM = IPSET_ATTR_PORT,
IPSET_ATTR_PORT_TO, /* 5 */
IPSET_ATTR_TIMEOUT, /* 6 */
IPSET_ATTR_PROTO, /* 7 */
IPSET_ATTR_CADT_FLAGS, /* 8 */
IPSET_ATTR_CADT_LINENO = IPSET_ATTR_LINENO, /* 9 */
IPSET_ATTR_MARK, /* 10 */
IPSET_ATTR_MARKMASK, /* 11 */
/* Reserve empty slots */
IPSET_ATTR_CADT_MAX = 16,
/* Create-only specific attributes */
IPSET_ATTR_GC,
IPSET_ATTR_HASHSIZE,
IPSET_ATTR_MAXELEM,
IPSET_ATTR_NETMASK,
IPSET_ATTR_PROBES,
IPSET_ATTR_RESIZE,
IPSET_ATTR_SIZE,
/* Kernel-only */
IPSET_ATTR_ELEMENTS,
IPSET_ATTR_REFERENCES,
IPSET_ATTR_MEMSIZE,
__IPSET_ATTR_CREATE_MAX,
};
#define IPSET_ATTR_CREATE_MAX (__IPSET_ATTR_CREATE_MAX - 1)
/* ADT specific attributes */
enum {
IPSET_ATTR_ETHER = IPSET_ATTR_CADT_MAX + 1,
IPSET_ATTR_NAME,
IPSET_ATTR_NAMEREF,
IPSET_ATTR_IP2,
IPSET_ATTR_CIDR2,
IPSET_ATTR_IP2_TO,
IPSET_ATTR_IFACE,
IPSET_ATTR_BYTES,
IPSET_ATTR_PACKETS,
IPSET_ATTR_COMMENT,
IPSET_ATTR_SKBMARK,
IPSET_ATTR_SKBPRIO,
IPSET_ATTR_SKBQUEUE,
IPSET_ATTR_PAD,
__IPSET_ATTR_ADT_MAX,
};
#define IPSET_ATTR_ADT_MAX (__IPSET_ATTR_ADT_MAX - 1)
/* IP specific attributes */
enum {
IPSET_ATTR_IPADDR_IPV4 = IPSET_ATTR_UNSPEC + 1,
IPSET_ATTR_IPADDR_IPV6,
__IPSET_ATTR_IPADDR_MAX,
};
#define IPSET_ATTR_IPADDR_MAX (__IPSET_ATTR_IPADDR_MAX - 1)
/* Error codes */
enum ipset_errno {
IPSET_ERR_PRIVATE = 4096,
IPSET_ERR_PROTOCOL,
IPSET_ERR_FIND_TYPE,
IPSET_ERR_MAX_SETS,
IPSET_ERR_BUSY,
IPSET_ERR_EXIST_SETNAME2,
IPSET_ERR_TYPE_MISMATCH,
IPSET_ERR_EXIST,
IPSET_ERR_INVALID_CIDR,
IPSET_ERR_INVALID_NETMASK,
IPSET_ERR_INVALID_FAMILY,
IPSET_ERR_TIMEOUT,
IPSET_ERR_REFERENCED,
IPSET_ERR_IPADDR_IPV4,
IPSET_ERR_IPADDR_IPV6,
IPSET_ERR_COUNTER,
IPSET_ERR_COMMENT,
IPSET_ERR_INVALID_MARKMASK,
IPSET_ERR_SKBINFO,
/* Type specific error codes */
IPSET_ERR_TYPE_SPECIFIC = 4352,
};
/* Flags at command level or match/target flags, lower half of cmdattrs*/
enum ipset_cmd_flags {
IPSET_FLAG_BIT_EXIST = 0,
IPSET_FLAG_EXIST = (1 << IPSET_FLAG_BIT_EXIST),
IPSET_FLAG_BIT_LIST_SETNAME = 1,
IPSET_FLAG_LIST_SETNAME = (1 << IPSET_FLAG_BIT_LIST_SETNAME),
IPSET_FLAG_BIT_LIST_HEADER = 2,
IPSET_FLAG_LIST_HEADER = (1 << IPSET_FLAG_BIT_LIST_HEADER),
IPSET_FLAG_BIT_SKIP_COUNTER_UPDATE = 3,
IPSET_FLAG_SKIP_COUNTER_UPDATE =
(1 << IPSET_FLAG_BIT_SKIP_COUNTER_UPDATE),
IPSET_FLAG_BIT_SKIP_SUBCOUNTER_UPDATE = 4,
IPSET_FLAG_SKIP_SUBCOUNTER_UPDATE =
(1 << IPSET_FLAG_BIT_SKIP_SUBCOUNTER_UPDATE),
IPSET_FLAG_BIT_MATCH_COUNTERS = 5,
IPSET_FLAG_MATCH_COUNTERS = (1 << IPSET_FLAG_BIT_MATCH_COUNTERS),
IPSET_FLAG_BIT_RETURN_NOMATCH = 7,
IPSET_FLAG_RETURN_NOMATCH = (1 << IPSET_FLAG_BIT_RETURN_NOMATCH),
IPSET_FLAG_BIT_MAP_SKBMARK = 8,
IPSET_FLAG_MAP_SKBMARK = (1 << IPSET_FLAG_BIT_MAP_SKBMARK),
IPSET_FLAG_BIT_MAP_SKBPRIO = 9,
IPSET_FLAG_MAP_SKBPRIO = (1 << IPSET_FLAG_BIT_MAP_SKBPRIO),
IPSET_FLAG_BIT_MAP_SKBQUEUE = 10,
IPSET_FLAG_MAP_SKBQUEUE = (1 << IPSET_FLAG_BIT_MAP_SKBQUEUE),
IPSET_FLAG_CMD_MAX = 15,
};
/* Flags at CADT attribute level, upper half of cmdattrs */
enum ipset_cadt_flags {
IPSET_FLAG_BIT_BEFORE = 0,
IPSET_FLAG_BEFORE = (1 << IPSET_FLAG_BIT_BEFORE),
IPSET_FLAG_BIT_PHYSDEV = 1,
IPSET_FLAG_PHYSDEV = (1 << IPSET_FLAG_BIT_PHYSDEV),
IPSET_FLAG_BIT_NOMATCH = 2,
IPSET_FLAG_NOMATCH = (1 << IPSET_FLAG_BIT_NOMATCH),
IPSET_FLAG_BIT_WITH_COUNTERS = 3,
IPSET_FLAG_WITH_COUNTERS = (1 << IPSET_FLAG_BIT_WITH_COUNTERS),
IPSET_FLAG_BIT_WITH_COMMENT = 4,
IPSET_FLAG_WITH_COMMENT = (1 << IPSET_FLAG_BIT_WITH_COMMENT),
IPSET_FLAG_BIT_WITH_FORCEADD = 5,
IPSET_FLAG_WITH_FORCEADD = (1 << IPSET_FLAG_BIT_WITH_FORCEADD),
IPSET_FLAG_BIT_WITH_SKBINFO = 6,
IPSET_FLAG_WITH_SKBINFO = (1 << IPSET_FLAG_BIT_WITH_SKBINFO),
IPSET_FLAG_CADT_MAX = 15,
};
/* The flag bits which correspond to the non-extension create flags */
enum ipset_create_flags {
IPSET_CREATE_FLAG_BIT_FORCEADD = 0,
IPSET_CREATE_FLAG_FORCEADD = (1 << IPSET_CREATE_FLAG_BIT_FORCEADD),
IPSET_CREATE_FLAG_BIT_MAX = 7,
};
/* Commands with settype-specific attributes */
enum ipset_adt {
IPSET_ADD,
IPSET_DEL,
IPSET_TEST,
IPSET_ADT_MAX,
IPSET_CREATE = IPSET_ADT_MAX,
IPSET_CADT_MAX,
};
/* Sets are identified by an index in kernel space. Tweak with ip_set_id_t
* and IPSET_INVALID_ID if you want to increase the max number of sets.
* Also, IPSET_ATTR_INDEX must be changed.
*/
typedef __u16 ip_set_id_t;
#define IPSET_INVALID_ID 65535
enum ip_set_dim {
IPSET_DIM_ZERO = 0,
IPSET_DIM_ONE,
IPSET_DIM_TWO,
IPSET_DIM_THREE,
/* Max dimension in elements.
* If changed, new revision of iptables match/target is required.
*/
IPSET_DIM_MAX = 6,
/* Backward compatibility: set match revision 2 */
IPSET_BIT_RETURN_NOMATCH = 7,
};
/* Option flags for kernel operations */
enum ip_set_kopt {
IPSET_INV_MATCH = (1 << IPSET_DIM_ZERO),
IPSET_DIM_ONE_SRC = (1 << IPSET_DIM_ONE),
IPSET_DIM_TWO_SRC = (1 << IPSET_DIM_TWO),
IPSET_DIM_THREE_SRC = (1 << IPSET_DIM_THREE),
IPSET_RETURN_NOMATCH = (1 << IPSET_BIT_RETURN_NOMATCH),
};
enum {
IPSET_COUNTER_NONE = 0,
IPSET_COUNTER_EQ,
IPSET_COUNTER_NE,
IPSET_COUNTER_LT,
IPSET_COUNTER_GT,
};
/* Backward compatibility for set match v3 */
struct ip_set_counter_match0 {
__u8 op;
__u64 value;
};
struct ip_set_counter_match {
__aligned_u64 value;
__u8 op;
};
/* Interface to iptables/ip6tables */
#define SO_IP_SET 83
union ip_set_name_index {
char name[IPSET_MAXNAMELEN];
ip_set_id_t index;
};
#define IP_SET_OP_GET_BYNAME 0x00000006 /* Get set index by name */
struct ip_set_req_get_set {
unsigned int op;
unsigned int version;
union ip_set_name_index set;
};
#define IP_SET_OP_GET_BYINDEX 0x00000007 /* Get set name by index */
/* Uses ip_set_req_get_set */
#define IP_SET_OP_GET_FNAME 0x00000008 /* Get set index and family */
struct ip_set_req_get_set_family {
unsigned int op;
unsigned int version;
unsigned int family;
union ip_set_name_index set;
};
#define IP_SET_OP_VERSION 0x00000100 /* Ask kernel version */
struct ip_set_req_version {
unsigned int op;
unsigned int version;
};
#endif /* _IP_SET_H */
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