From fac10ea799fe9b6158d74f66d6ad46536d38a545 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Wed, 18 Mar 2009 04:55:00 +0100 Subject: Initial commit --- include/linux/netfilter.h | 59 ++++ include/linux/netfilter/nf_conntrack_common.h | 152 ++++++++++ .../linux/netfilter/nf_conntrack_tuple_common.h | 13 + include/linux/netfilter/nf_tables.h | 337 +++++++++++++++++++++ include/linux/netfilter_arp.h | 19 ++ include/linux/netfilter_bridge.h | 27 ++ include/linux/netfilter_decnet.h | 72 +++++ include/linux/netfilter_ipv4.h | 75 +++++ include/linux/netfilter_ipv6.h | 72 +++++ 9 files changed, 826 insertions(+) create mode 100644 include/linux/netfilter.h create mode 100644 include/linux/netfilter/nf_conntrack_common.h create mode 100644 include/linux/netfilter/nf_conntrack_tuple_common.h create mode 100644 include/linux/netfilter/nf_tables.h create mode 100644 include/linux/netfilter_arp.h create mode 100644 include/linux/netfilter_bridge.h create mode 100644 include/linux/netfilter_decnet.h create mode 100644 include/linux/netfilter_ipv4.h create mode 100644 include/linux/netfilter_ipv6.h (limited to 'include/linux') diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h new file mode 100644 index 00000000..2eb00b6c --- /dev/null +++ b/include/linux/netfilter.h @@ -0,0 +1,59 @@ +#ifndef __LINUX_NETFILTER_H +#define __LINUX_NETFILTER_H + +#include + + +/* Responses from hook functions. */ +#define NF_DROP 0 +#define NF_ACCEPT 1 +#define NF_STOLEN 2 +#define NF_QUEUE 3 +#define NF_REPEAT 4 +#define NF_STOP 5 +#define NF_MAX_VERDICT NF_STOP + +/* we overload the higher bits for encoding auxiliary data such as the queue + * number. Not nice, but better than additional function arguments. */ +#define NF_VERDICT_MASK 0x0000ffff +#define NF_VERDICT_BITS 16 + +#define NF_VERDICT_QMASK 0xffff0000 +#define NF_VERDICT_QBITS 16 + +#define NF_QUEUE_NR(x) ((((x) << NF_VERDICT_BITS) & NF_VERDICT_QMASK) | NF_QUEUE) + +/* only for userspace compatibility */ +/* Generic cache responses from hook functions. + <= 0x2000 is used for protocol-flags. */ +#define NFC_UNKNOWN 0x4000 +#define NFC_ALTERED 0x8000 + +enum nf_inet_hooks { + NF_INET_PRE_ROUTING, + NF_INET_LOCAL_IN, + NF_INET_FORWARD, + NF_INET_LOCAL_OUT, + NF_INET_POST_ROUTING, + NF_INET_NUMHOOKS +}; + +enum { + NFPROTO_UNSPEC = 0, + NFPROTO_IPV4 = 2, + NFPROTO_ARP = 3, + NFPROTO_BRIDGE = 7, + NFPROTO_IPV6 = 10, + NFPROTO_DECNET = 12, + NFPROTO_NUMPROTO, +}; + +union nf_inet_addr { + __u32 all[4]; + __be32 ip; + __be32 ip6[4]; + struct in_addr in; + struct in6_addr in6; +}; + +#endif /*__LINUX_NETFILTER_H*/ diff --git a/include/linux/netfilter/nf_conntrack_common.h b/include/linux/netfilter/nf_conntrack_common.h new file mode 100644 index 00000000..27a18952 --- /dev/null +++ b/include/linux/netfilter/nf_conntrack_common.h @@ -0,0 +1,152 @@ +#ifndef _NF_CONNTRACK_COMMON_H +#define _NF_CONNTRACK_COMMON_H +/* Connection state tracking for netfilter. This is separated from, + but required by, the NAT layer; it can also be used by an iptables + extension. */ +enum ip_conntrack_info +{ + /* Part of an established connection (either direction). */ + IP_CT_ESTABLISHED, + + /* Like NEW, but related to an existing connection, or ICMP error + (in either direction). */ + IP_CT_RELATED, + + /* Started a new connection to track (only + IP_CT_DIR_ORIGINAL); may be a retransmission. */ + IP_CT_NEW, + + /* >= this indicates reply direction */ + IP_CT_IS_REPLY, + + /* Number of distinct IP_CT types (no NEW in reply dirn). */ + IP_CT_NUMBER = IP_CT_IS_REPLY * 2 - 1 +}; + +#define NF_CT_STATE_INVALID_BIT (1 << 0) +#define NF_CT_STATE_BIT(ctinfo) (1 << ((ctinfo) % IP_CT_IS_REPLY + 1)) +#define NF_CT_STATE_UNTRACKED_BIT (1 << (IP_CT_NUMBER + 1)) + +/* Bitset representing status of connection. */ +enum ip_conntrack_status { + /* It's an expected connection: bit 0 set. This bit never changed */ + IPS_EXPECTED_BIT = 0, + IPS_EXPECTED = (1 << IPS_EXPECTED_BIT), + + /* We've seen packets both ways: bit 1 set. Can be set, not unset. */ + IPS_SEEN_REPLY_BIT = 1, + IPS_SEEN_REPLY = (1 << IPS_SEEN_REPLY_BIT), + + /* Conntrack should never be early-expired. */ + IPS_ASSURED_BIT = 2, + IPS_ASSURED = (1 << IPS_ASSURED_BIT), + + /* Connection is confirmed: originating packet has left box */ + IPS_CONFIRMED_BIT = 3, + IPS_CONFIRMED = (1 << IPS_CONFIRMED_BIT), + + /* Connection needs src nat in orig dir. This bit never changed. */ + IPS_SRC_NAT_BIT = 4, + IPS_SRC_NAT = (1 << IPS_SRC_NAT_BIT), + + /* Connection needs dst nat in orig dir. This bit never changed. */ + IPS_DST_NAT_BIT = 5, + IPS_DST_NAT = (1 << IPS_DST_NAT_BIT), + + /* Both together. */ + IPS_NAT_MASK = (IPS_DST_NAT | IPS_SRC_NAT), + + /* Connection needs TCP sequence adjusted. */ + IPS_SEQ_ADJUST_BIT = 6, + IPS_SEQ_ADJUST = (1 << IPS_SEQ_ADJUST_BIT), + + /* NAT initialization bits. */ + IPS_SRC_NAT_DONE_BIT = 7, + IPS_SRC_NAT_DONE = (1 << IPS_SRC_NAT_DONE_BIT), + + IPS_DST_NAT_DONE_BIT = 8, + IPS_DST_NAT_DONE = (1 << IPS_DST_NAT_DONE_BIT), + + /* Both together */ + IPS_NAT_DONE_MASK = (IPS_DST_NAT_DONE | IPS_SRC_NAT_DONE), + + /* Connection is dying (removed from lists), can not be unset. */ + IPS_DYING_BIT = 9, + IPS_DYING = (1 << IPS_DYING_BIT), + + /* Connection has fixed timeout. */ + IPS_FIXED_TIMEOUT_BIT = 10, + IPS_FIXED_TIMEOUT = (1 << IPS_FIXED_TIMEOUT_BIT), +}; + +/* Connection tracking event bits */ +enum ip_conntrack_events +{ + /* New conntrack */ + IPCT_NEW_BIT = 0, + IPCT_NEW = (1 << IPCT_NEW_BIT), + + /* Expected connection */ + IPCT_RELATED_BIT = 1, + IPCT_RELATED = (1 << IPCT_RELATED_BIT), + + /* Destroyed conntrack */ + IPCT_DESTROY_BIT = 2, + IPCT_DESTROY = (1 << IPCT_DESTROY_BIT), + + /* Timer has been refreshed */ + IPCT_REFRESH_BIT = 3, + IPCT_REFRESH = (1 << IPCT_REFRESH_BIT), + + /* Status has changed */ + IPCT_STATUS_BIT = 4, + IPCT_STATUS = (1 << IPCT_STATUS_BIT), + + /* Update of protocol info */ + IPCT_PROTOINFO_BIT = 5, + IPCT_PROTOINFO = (1 << IPCT_PROTOINFO_BIT), + + /* Volatile protocol info */ + IPCT_PROTOINFO_VOLATILE_BIT = 6, + IPCT_PROTOINFO_VOLATILE = (1 << IPCT_PROTOINFO_VOLATILE_BIT), + + /* New helper for conntrack */ + IPCT_HELPER_BIT = 7, + IPCT_HELPER = (1 << IPCT_HELPER_BIT), + + /* Update of helper info */ + IPCT_HELPINFO_BIT = 8, + IPCT_HELPINFO = (1 << IPCT_HELPINFO_BIT), + + /* Volatile helper info */ + IPCT_HELPINFO_VOLATILE_BIT = 9, + IPCT_HELPINFO_VOLATILE = (1 << IPCT_HELPINFO_VOLATILE_BIT), + + /* NAT info */ + IPCT_NATINFO_BIT = 10, + IPCT_NATINFO = (1 << IPCT_NATINFO_BIT), + + /* Counter highest bit has been set, unused */ + IPCT_COUNTER_FILLING_BIT = 11, + IPCT_COUNTER_FILLING = (1 << IPCT_COUNTER_FILLING_BIT), + + /* Mark is set */ + IPCT_MARK_BIT = 12, + IPCT_MARK = (1 << IPCT_MARK_BIT), + + /* NAT sequence adjustment */ + IPCT_NATSEQADJ_BIT = 13, + IPCT_NATSEQADJ = (1 << IPCT_NATSEQADJ_BIT), + + /* Secmark is set */ + IPCT_SECMARK_BIT = 14, + IPCT_SECMARK = (1 << IPCT_SECMARK_BIT), +}; + +enum ip_conntrack_expect_events { + IPEXP_NEW_BIT = 0, + IPEXP_NEW = (1 << IPEXP_NEW_BIT), +}; + + +#endif /* _NF_CONNTRACK_COMMON_H */ diff --git a/include/linux/netfilter/nf_conntrack_tuple_common.h b/include/linux/netfilter/nf_conntrack_tuple_common.h new file mode 100644 index 00000000..8e145f0d --- /dev/null +++ b/include/linux/netfilter/nf_conntrack_tuple_common.h @@ -0,0 +1,13 @@ +#ifndef _NF_CONNTRACK_TUPLE_COMMON_H +#define _NF_CONNTRACK_TUPLE_COMMON_H + +enum ip_conntrack_dir +{ + IP_CT_DIR_ORIGINAL, + IP_CT_DIR_REPLY, + IP_CT_DIR_MAX +}; + +#define CTINFO2DIR(ctinfo) ((ctinfo) >= IP_CT_IS_REPLY ? IP_CT_DIR_REPLY : IP_CT_DIR_ORIGINAL) + +#endif /* _NF_CONNTRACK_TUPLE_COMMON_H */ diff --git a/include/linux/netfilter/nf_tables.h b/include/linux/netfilter/nf_tables.h new file mode 100644 index 00000000..b4d518e3 --- /dev/null +++ b/include/linux/netfilter/nf_tables.h @@ -0,0 +1,337 @@ +#ifndef _LINUX_NF_TABLES_H +#define _LINUX_NF_TABLES_H + +enum nft_registers { + NFT_REG_VERDICT, + NFT_REG_1, + NFT_REG_2, + NFT_REG_3, + NFT_REG_4, + __NFT_REG_MAX +}; +#define NFT_REG_MAX (__NFT_REG_MAX - 1) + +enum nft_verdicts { + NFT_CONTINUE = -1, + NFT_BREAK = -2, + NFT_JUMP = -3, + NFT_GOTO = -4, + NFT_RETURN = -5, +}; + +enum nf_tables_msg_types { + NFT_MSG_NEWTABLE, + NFT_MSG_GETTABLE, + NFT_MSG_DELTABLE, + NFT_MSG_NEWCHAIN, + NFT_MSG_GETCHAIN, + NFT_MSG_DELCHAIN, + NFT_MSG_NEWRULE, + NFT_MSG_GETRULE, + NFT_MSG_DELRULE, + NFT_MSG_MAX, +}; + +enum nft_list_attributes { + NFTA_LIST_UNPEC, + NFTA_LIST_ELEM, + __NFTA_LIST_MAX +}; +#define NFTA_LIST_MAX (__NFTA_LIST_MAX - 1) + +enum nft_hook_attributes { + NFTA_HOOK_UNSPEC, + NFTA_HOOK_HOOKNUM, + NFTA_HOOK_PRIORITY, + __NFTA_HOOK_MAX +}; +#define NFTA_HOOK_MAX (__NFTA_HOOK_MAX - 1) + +enum nft_table_attributes { + NFTA_TABLE_UNSPEC, + NFTA_TABLE_NAME, + __NFTA_TABLE_MAX +}; +#define NFTA_TABLE_MAX (__NFTA_TABLE_MAX - 1) + +enum nft_chain_attributes { + NFTA_CHAIN_UNSPEC, + NFTA_CHAIN_TABLE, + NFTA_CHAIN_NAME, + NFTA_CHAIN_HOOK, + __NFTA_CHAIN_MAX +}; +#define NFTA_CHAIN_MAX (__NFTA_CHAIN_MAX - 1) + +enum nft_rule_attributes { + NFTA_RULE_UNSPEC, + NFTA_RULE_TABLE, + NFTA_RULE_CHAIN, + NFTA_RULE_HANDLE, + NFTA_RULE_EXPRESSIONS, + __NFTA_RULE_MAX +}; +#define NFTA_RULE_MAX (__NFTA_RULE_MAX - 1) + +enum nft_data_attributes { + NFTA_DATA_UNSPEC, + NFTA_DATA_VALUE, + NFTA_DATA_VERDICT, + __NFTA_DATA_MAX +}; +#define NFTA_DATA_MAX (__NFTA_DATA_MAX - 1) + +enum nft_verdict_attributes { + NFTA_VERDICT_UNSPEC, + NFTA_VERDICT_CODE, + NFTA_VERDICT_CHAIN, + __NFTA_VERDICT_MAX +}; +#define NFTA_VERDICT_MAX (__NFTA_VERDICT_MAX - 1) + +enum nft_expr_attributes { + NFTA_EXPR_UNSPEC, + NFTA_EXPR_NAME, + NFTA_EXPR_DATA, + __NFTA_EXPR_MAX +}; +#define NFTA_EXPR_MAX (__NFTA_EXPR_MAX - 1) + +enum nft_immediate_attributes { + NFTA_IMMEDIATE_UNSPEC, + NFTA_IMMEDIATE_DREG, + NFTA_IMMEDIATE_DATA, + __NFTA_IMMEDIATE_MAX +}; +#define NFTA_IMMEDIATE_MAX (__NFTA_IMMEDIATE_MAX - 1) + +enum nft_bitwise_attributes { + NFTA_BITWISE_UNSPEC, + NFTA_BITWISE_SREG, + NFTA_BITWISE_DREG, + NFTA_BITWISE_LEN, + NFTA_BITWISE_MASK, + NFTA_BITWISE_XOR, + __NFTA_BITWISE_MAX +}; +#define NFTA_BITWISE_MAX (__NFTA_BITWISE_MAX - 1) + +enum nft_byteorder_ops { + NFT_BYTEORDER_NTOH, + NFT_BYTEORDER_HTON, +}; + +enum nft_byteorder_attributes { + NFTA_BYTEORDER_UNSPEC, + NFTA_BYTEORDER_SREG, + NFTA_BYTEORDER_DREG, + NFTA_BYTEORDER_OP, + NFTA_BYTEORDER_LEN, + NFTA_BYTEORDER_SIZE, + __NFTA_BYTEORDER_MAX +}; +#define NFTA_BYTEORDER_MAX (__NFTA_BYTEORDER_MAX - 1) + +enum nft_cmp_ops { + NFT_CMP_EQ, + NFT_CMP_NEQ, + NFT_CMP_LT, + NFT_CMP_LTE, + NFT_CMP_GT, + NFT_CMP_GTE, +}; + +enum nft_cmp_attributes { + NFTA_CMP_UNSPEC, + NFTA_CMP_SREG, + NFTA_CMP_OP, + NFTA_CMP_DATA, + __NFTA_CMP_MAX +}; +#define NFTA_CMP_MAX (__NFTA_CMP_MAX - 1) + +enum nft_set_elem_flags { + NFT_SE_INTERVAL_END = 0x1, +}; + +enum nft_set_elem_attributes { + NFTA_SE_UNSPEC, + NFTA_SE_KEY, + NFTA_SE_DATA, + NFTA_SE_FLAGS, + __NFTA_SE_MAX +}; +#define NFTA_SE_MAX (__NFTA_SE_MAX - 1) + +enum nft_set_flags { + NFT_SET_INTERVAL = 0x1, + NFT_SET_MAP = 0x2, +}; + +enum nft_set_attributes { + NFTA_SET_UNSPEC, + NFTA_SET_FLAGS, + NFTA_SET_SREG, + NFTA_SET_DREG, + NFTA_SET_KLEN, + NFTA_SET_ELEMENTS, + __NFTA_SET_MAX +}; +#define NFTA_SET_MAX (__NFTA_SET_MAX - 1) + +enum nft_hash_flags { + NFT_HASH_MAP = 0x1, +}; + +enum nft_hash_elem_attributes { + NFTA_HE_UNSPEC, + NFTA_HE_KEY, + NFTA_HE_DATA, + __NFTA_HE_MAX +}; +#define NFTA_HE_MAX (__NFTA_HE_MAX - 1) + +enum nft_hash_attributes { + NFTA_HASH_UNSPEC, + NFTA_HASH_FLAGS, + NFTA_HASH_SREG, + NFTA_HASH_DREG, + NFTA_HASH_KLEN, + NFTA_HASH_ELEMENTS, + __NFTA_HASH_MAX +}; +#define NFTA_HASH_MAX (__NFTA_HASH_MAX - 1) + +enum nft_payload_bases { + NFT_PAYLOAD_LL_HEADER, + NFT_PAYLOAD_NETWORK_HEADER, + NFT_PAYLOAD_TRANSPORT_HEADER, +}; + +enum nft_payload_attributes { + NFTA_PAYLOAD_UNSPEC, + NFTA_PAYLOAD_DREG, + NFTA_PAYLOAD_BASE, + NFTA_PAYLOAD_OFFSET, + NFTA_PAYLOAD_LEN, + __NFTA_PAYLOAD_MAX +}; +#define NFTA_PAYLOAD_MAX (__NFTA_PAYLOAD_MAX - 1) + +enum nft_exthdr_attributes { + NFTA_EXTHDR_UNSPEC, + NFTA_EXTHDR_DREG, + NFTA_EXTHDR_TYPE, + NFTA_EXTHDR_OFFSET, + NFTA_EXTHDR_LEN, + __NFTA_EXTHDR_MAX +}; +#define NFTA_EXTHDR_MAX (__NFTA_EXTHDR_MAX - 1) + +enum nft_meta_keys { + NFT_META_LEN, + NFT_META_PROTOCOL, + NFT_META_PRIORITY, + NFT_META_MARK, + NFT_META_IIF, + NFT_META_OIF, + NFT_META_IIFNAME, + NFT_META_OIFNAME, + NFT_META_IIFTYPE, + NFT_META_OIFTYPE, + NFT_META_SKUID, + NFT_META_SKGID, + NFT_META_NFTRACE, + NFT_META_RTCLASSID, + NFT_META_SECMARK, +}; + +enum nft_meta_attributes { + NFTA_META_UNSPEC, + NFTA_META_DREG, + NFTA_META_KEY, + __NFTA_META_MAX +}; +#define NFTA_META_MAX (__NFTA_META_MAX - 1) + +enum nft_ct_keys { + NFT_CT_STATE, + NFT_CT_DIRECTION, + NFT_CT_STATUS, + NFT_CT_MARK, + NFT_CT_SECMARK, + NFT_CT_EXPIRATION, + NFT_CT_HELPER, + NFT_CT_L3PROTO, + NFT_CT_SADDR, + NFT_CT_DADDR, + NFT_CT_PROTOCOL, + NFT_CT_PROTO_SRC, + NFT_CT_PROTO_DST, +}; + +enum nft_ct_attributes { + NFTA_CT_UNSPEC, + NFTA_CT_DREG, + NFTA_CT_KEY, + NFTA_CT_DIRECTION, + __NFTA_CT_MAX +}; +#define NFTA_CT_MAX (__NFTA_CT_MAX - 1) + +enum nft_limit_attributes { + NFTA_LIMIT_UNSPEC, + NFTA_LIMIT_RATE, + NFTA_LIMIT_DEPTH, + __NFTA_LIMIT_MAX +}; +#define NFTA_LIMIT_MAX (__NFTA_LIMIT_MAX - 1) + +enum nft_counter_attributes { + NFTA_COUNTER_UNSPEC, + NFTA_COUNTER_BYTES, + NFTA_COUNTER_PACKETS, + __NFTA_COUNTER_MAX +}; +#define NFTA_COUNTER_MAX (__NFTA_COUNTER_MAX - 1) + +enum nft_log_attributes { + NFTA_LOG_UNSPEC, + NFTA_LOG_GROUP, + NFTA_LOG_PREFIX, + NFTA_LOG_SNAPLEN, + NFTA_LOG_QTHRESHOLD, + __NFTA_LOG_MAX +}; +#define NFTA_LOG_MAX (__NFTA_LOG_MAX - 1) + +enum nft_reject_types { + NFT_REJECT_ICMP_UNREACH, + NFT_REJECT_TCP_RST, +}; + +enum nft_reject_attributes { + NFTA_REJECT_UNSPEC, + NFTA_REJECT_TYPE, + NFTA_REJECT_ICMP_CODE, + __NFTA_REJECT_MAX +}; +#define NFTA_REJECT_MAX (__NFTA_REJECT_MAX - 1) + +enum nft_nat_types { + NFT_NAT_SNAT, + NFT_NAT_DNAT, +}; + +enum nft_nat_attributes { + NFTA_NAT_UNSPEC, + NFTA_NAT_TYPE, + NFTA_NAT_ADDR_MIN, + NFTA_NAT_ADDR_MAX, + NFTA_NAT_PROTO_MIN, + NFTA_NAT_PROTO_MAX, + __NFTA_NAT_MAX +}; +#define NFTA_NAT_MAX (__NFTA_NAT_MAX - 1) + +#endif /* _LINUX_NF_TABLES_H */ diff --git a/include/linux/netfilter_arp.h b/include/linux/netfilter_arp.h new file mode 100644 index 00000000..92bc6ddc --- /dev/null +++ b/include/linux/netfilter_arp.h @@ -0,0 +1,19 @@ +#ifndef __LINUX_ARP_NETFILTER_H +#define __LINUX_ARP_NETFILTER_H + +/* ARP-specific defines for netfilter. + * (C)2002 Rusty Russell IBM -- This code is GPL. + */ + +#include + +/* There is no PF_ARP. */ +#define NF_ARP 0 + +/* ARP Hooks */ +#define NF_ARP_IN 0 +#define NF_ARP_OUT 1 +#define NF_ARP_FORWARD 2 +#define NF_ARP_NUMHOOKS 3 + +#endif /* __LINUX_ARP_NETFILTER_H */ diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h new file mode 100644 index 00000000..5094ecca --- /dev/null +++ b/include/linux/netfilter_bridge.h @@ -0,0 +1,27 @@ +#ifndef __LINUX_BRIDGE_NETFILTER_H +#define __LINUX_BRIDGE_NETFILTER_H + +/* bridge-specific defines for netfilter. + */ + +#include +#include +#include +#include + +/* Bridge Hooks */ +/* After promisc drops, checksum checks. */ +#define NF_BR_PRE_ROUTING 0 +/* If the packet is destined for this box. */ +#define NF_BR_LOCAL_IN 1 +/* If the packet is destined for another interface. */ +#define NF_BR_FORWARD 2 +/* Packets coming from a local process. */ +#define NF_BR_LOCAL_OUT 3 +/* Packets about to hit the wire. */ +#define NF_BR_POST_ROUTING 4 +/* Not really a hook, but used for the ebtables broute table */ +#define NF_BR_BROUTING 5 +#define NF_BR_NUMHOOKS 6 + +#endif diff --git a/include/linux/netfilter_decnet.h b/include/linux/netfilter_decnet.h new file mode 100644 index 00000000..ca70c6cd --- /dev/null +++ b/include/linux/netfilter_decnet.h @@ -0,0 +1,72 @@ +#ifndef __LINUX_DECNET_NETFILTER_H +#define __LINUX_DECNET_NETFILTER_H + +/* DECnet-specific defines for netfilter. + * This file (C) Steve Whitehouse 1999 derived from the + * ipv4 netfilter header file which is + * (C)1998 Rusty Russell -- This code is GPL. + */ + +#include + +/* only for userspace compatibility */ +/* IP Cache bits. */ +/* Src IP address. */ +#define NFC_DN_SRC 0x0001 +/* Dest IP address. */ +#define NFC_DN_DST 0x0002 +/* Input device. */ +#define NFC_DN_IF_IN 0x0004 +/* Output device. */ +#define NFC_DN_IF_OUT 0x0008 + +/* DECnet Hooks */ +/* After promisc drops, checksum checks. */ +#define NF_DN_PRE_ROUTING 0 +/* If the packet is destined for this box. */ +#define NF_DN_LOCAL_IN 1 +/* If the packet is destined for another interface. */ +#define NF_DN_FORWARD 2 +/* Packets coming from a local process. */ +#define NF_DN_LOCAL_OUT 3 +/* Packets about to hit the wire. */ +#define NF_DN_POST_ROUTING 4 +/* Input Hello Packets */ +#define NF_DN_HELLO 5 +/* Input Routing Packets */ +#define NF_DN_ROUTE 6 +#define NF_DN_NUMHOOKS 7 + +enum nf_dn_hook_priorities { + NF_DN_PRI_FIRST = INT_MIN, + NF_DN_PRI_CONNTRACK = -200, + NF_DN_PRI_MANGLE = -150, + NF_DN_PRI_NAT_DST = -100, + NF_DN_PRI_FILTER = 0, + NF_DN_PRI_NAT_SRC = 100, + NF_DN_PRI_DNRTMSG = 200, + NF_DN_PRI_LAST = INT_MAX, +}; + +struct nf_dn_rtmsg { + int nfdn_ifindex; +}; + +#define NFDN_RTMSG(r) ((unsigned char *)(r) + NLMSG_ALIGN(sizeof(struct nf_dn_rtmsg))) + +/* backwards compatibility for userspace */ +#define DNRMG_L1_GROUP 0x01 +#define DNRMG_L2_GROUP 0x02 + +enum { + DNRNG_NLGRP_NONE, +#define DNRNG_NLGRP_NONE DNRNG_NLGRP_NONE + DNRNG_NLGRP_L1, +#define DNRNG_NLGRP_L1 DNRNG_NLGRP_L1 + DNRNG_NLGRP_L2, +#define DNRNG_NLGRP_L2 DNRNG_NLGRP_L2 + __DNRNG_NLGRP_MAX +}; +#define DNRNG_NLGRP_MAX (__DNRNG_NLGRP_MAX - 1) + +#endif /*__LINUX_DECNET_NETFILTER_H*/ diff --git a/include/linux/netfilter_ipv4.h b/include/linux/netfilter_ipv4.h new file mode 100644 index 00000000..4d7ba3e4 --- /dev/null +++ b/include/linux/netfilter_ipv4.h @@ -0,0 +1,75 @@ +#ifndef __LINUX_IP_NETFILTER_H +#define __LINUX_IP_NETFILTER_H + +/* IPv4-specific defines for netfilter. + * (C)1998 Rusty Russell -- This code is GPL. + */ + +#include + +/* only for userspace compatibility */ +/* IP Cache bits. */ +/* Src IP address. */ +#define NFC_IP_SRC 0x0001 +/* Dest IP address. */ +#define NFC_IP_DST 0x0002 +/* Input device. */ +#define NFC_IP_IF_IN 0x0004 +/* Output device. */ +#define NFC_IP_IF_OUT 0x0008 +/* TOS. */ +#define NFC_IP_TOS 0x0010 +/* Protocol. */ +#define NFC_IP_PROTO 0x0020 +/* IP options. */ +#define NFC_IP_OPTIONS 0x0040 +/* Frag & flags. */ +#define NFC_IP_FRAG 0x0080 + +/* Per-protocol information: only matters if proto match. */ +/* TCP flags. */ +#define NFC_IP_TCPFLAGS 0x0100 +/* Source port. */ +#define NFC_IP_SRC_PT 0x0200 +/* Dest port. */ +#define NFC_IP_DST_PT 0x0400 +/* Something else about the proto */ +#define NFC_IP_PROTO_UNKNOWN 0x2000 + +/* IP Hooks */ +/* After promisc drops, checksum checks. */ +#define NF_IP_PRE_ROUTING 0 +/* If the packet is destined for this box. */ +#define NF_IP_LOCAL_IN 1 +/* If the packet is destined for another interface. */ +#define NF_IP_FORWARD 2 +/* Packets coming from a local process. */ +#define NF_IP_LOCAL_OUT 3 +/* Packets about to hit the wire. */ +#define NF_IP_POST_ROUTING 4 +#define NF_IP_NUMHOOKS 5 + +enum nf_ip_hook_priorities { + NF_IP_PRI_FIRST = INT_MIN, + NF_IP_PRI_CONNTRACK_DEFRAG = -400, + NF_IP_PRI_RAW = -300, + NF_IP_PRI_SELINUX_FIRST = -225, + NF_IP_PRI_CONNTRACK = -200, + NF_IP_PRI_MANGLE = -150, + NF_IP_PRI_NAT_DST = -100, + NF_IP_PRI_FILTER = 0, + NF_IP_PRI_SECURITY = 50, + NF_IP_PRI_NAT_SRC = 100, + NF_IP_PRI_SELINUX_LAST = 225, + NF_IP_PRI_CONNTRACK_CONFIRM = INT_MAX, + NF_IP_PRI_LAST = INT_MAX, +}; + +/* Arguments for setsockopt SOL_IP: */ +/* 2.0 firewalling went from 64 through 71 (and +256, +512, etc). */ +/* 2.2 firewalling (+ masq) went from 64 through 76 */ +/* 2.4 firewalling went 64 through 67. */ +#define SO_ORIGINAL_DST 80 + + +#endif /*__LINUX_IP_NETFILTER_H*/ diff --git a/include/linux/netfilter_ipv6.h b/include/linux/netfilter_ipv6.h new file mode 100644 index 00000000..7430b392 --- /dev/null +++ b/include/linux/netfilter_ipv6.h @@ -0,0 +1,72 @@ +#ifndef __LINUX_IP6_NETFILTER_H +#define __LINUX_IP6_NETFILTER_H + +/* IPv6-specific defines for netfilter. + * (C)1998 Rusty Russell -- This code is GPL. + * (C)1999 David Jeffery + * this header was blatantly ripped from netfilter_ipv4.h + * it's amazing what adding a bunch of 6s can do =8^) + */ + +#include + +/* only for userspace compatibility */ +/* IP Cache bits. */ +/* Src IP address. */ +#define NFC_IP6_SRC 0x0001 +/* Dest IP address. */ +#define NFC_IP6_DST 0x0002 +/* Input device. */ +#define NFC_IP6_IF_IN 0x0004 +/* Output device. */ +#define NFC_IP6_IF_OUT 0x0008 +/* TOS. */ +#define NFC_IP6_TOS 0x0010 +/* Protocol. */ +#define NFC_IP6_PROTO 0x0020 +/* IP options. */ +#define NFC_IP6_OPTIONS 0x0040 +/* Frag & flags. */ +#define NFC_IP6_FRAG 0x0080 + + +/* Per-protocol information: only matters if proto match. */ +/* TCP flags. */ +#define NFC_IP6_TCPFLAGS 0x0100 +/* Source port. */ +#define NFC_IP6_SRC_PT 0x0200 +/* Dest port. */ +#define NFC_IP6_DST_PT 0x0400 +/* Something else about the proto */ +#define NFC_IP6_PROTO_UNKNOWN 0x2000 + +/* IP6 Hooks */ +/* After promisc drops, checksum checks. */ +#define NF_IP6_PRE_ROUTING 0 +/* If the packet is destined for this box. */ +#define NF_IP6_LOCAL_IN 1 +/* If the packet is destined for another interface. */ +#define NF_IP6_FORWARD 2 +/* Packets coming from a local process. */ +#define NF_IP6_LOCAL_OUT 3 +/* Packets about to hit the wire. */ +#define NF_IP6_POST_ROUTING 4 +#define NF_IP6_NUMHOOKS 5 + + +enum nf_ip6_hook_priorities { + NF_IP6_PRI_FIRST = INT_MIN, + NF_IP6_PRI_CONNTRACK_DEFRAG = -400, + NF_IP6_PRI_SELINUX_FIRST = -225, + NF_IP6_PRI_CONNTRACK = -200, + NF_IP6_PRI_MANGLE = -150, + NF_IP6_PRI_NAT_DST = -100, + NF_IP6_PRI_FILTER = 0, + NF_IP6_PRI_SECURITY = 50, + NF_IP6_PRI_NAT_SRC = 100, + NF_IP6_PRI_SELINUX_LAST = 225, + NF_IP6_PRI_LAST = INT_MAX, +}; + + +#endif /*__LINUX_IP6_NETFILTER_H*/ -- cgit v1.2.3