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linux
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netfilter
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ipset
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ip_set.h
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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 */