diff options
Diffstat (limited to 'include/uapi')
77 files changed, 3028 insertions, 0 deletions
diff --git a/include/uapi/linux/netfilter/Kbuild b/include/uapi/linux/netfilter/Kbuild index 4afbace8e869..08f555fef13f 100644 --- a/include/uapi/linux/netfilter/Kbuild +++ b/include/uapi/linux/netfilter/Kbuild @@ -1,2 +1,78 @@ # UAPI Header export list header-y += ipset/ +header-y += nf_conntrack_common.h +header-y += nf_conntrack_ftp.h +header-y += nf_conntrack_sctp.h +header-y += nf_conntrack_tcp.h +header-y += nf_conntrack_tuple_common.h +header-y += nf_nat.h +header-y += nfnetlink.h +header-y += nfnetlink_acct.h +header-y += nfnetlink_compat.h +header-y += nfnetlink_conntrack.h +header-y += nfnetlink_cthelper.h +header-y += nfnetlink_cttimeout.h +header-y += nfnetlink_log.h +header-y += nfnetlink_queue.h +header-y += x_tables.h +header-y += xt_AUDIT.h +header-y += xt_CHECKSUM.h +header-y += xt_CLASSIFY.h +header-y += xt_CONNMARK.h +header-y += xt_CONNSECMARK.h +header-y += xt_CT.h +header-y += xt_DSCP.h +header-y += xt_IDLETIMER.h +header-y += xt_LED.h +header-y += xt_LOG.h +header-y += xt_MARK.h +header-y += xt_NFLOG.h +header-y += xt_NFQUEUE.h +header-y += xt_RATEEST.h +header-y += xt_SECMARK.h +header-y += xt_TCPMSS.h +header-y += xt_TCPOPTSTRIP.h +header-y += xt_TEE.h +header-y += xt_TPROXY.h +header-y += xt_addrtype.h +header-y += xt_cluster.h +header-y += xt_comment.h +header-y += xt_connbytes.h +header-y += xt_connlimit.h +header-y += xt_connmark.h +header-y += xt_conntrack.h +header-y += xt_cpu.h +header-y += xt_dccp.h +header-y += xt_devgroup.h +header-y += xt_dscp.h +header-y += xt_ecn.h +header-y += xt_esp.h +header-y += xt_hashlimit.h +header-y += xt_helper.h +header-y += xt_iprange.h +header-y += xt_ipvs.h +header-y += xt_length.h +header-y += xt_limit.h +header-y += xt_mac.h +header-y += xt_mark.h +header-y += xt_multiport.h +header-y += xt_nfacct.h +header-y += xt_osf.h +header-y += xt_owner.h +header-y += xt_physdev.h +header-y += xt_pkttype.h +header-y += xt_policy.h +header-y += xt_quota.h +header-y += xt_rateest.h +header-y += xt_realm.h +header-y += xt_recent.h +header-y += xt_sctp.h +header-y += xt_set.h +header-y += xt_socket.h +header-y += xt_state.h +header-y += xt_statistic.h +header-y += xt_string.h +header-y += xt_tcpmss.h +header-y += xt_tcpudp.h +header-y += xt_time.h +header-y += xt_u32.h diff --git a/include/uapi/linux/netfilter/nf_conntrack_common.h b/include/uapi/linux/netfilter/nf_conntrack_common.h new file mode 100644 index 000000000000..1644cdd8be91 --- /dev/null +++ b/include/uapi/linux/netfilter/nf_conntrack_common.h @@ -0,0 +1,117 @@ +#ifndef _UAPI_NF_CONNTRACK_COMMON_H +#define _UAPI_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, + + IP_CT_ESTABLISHED_REPLY = IP_CT_ESTABLISHED + IP_CT_IS_REPLY, + IP_CT_RELATED_REPLY = IP_CT_RELATED + IP_CT_IS_REPLY, + IP_CT_NEW_REPLY = IP_CT_NEW + IP_CT_IS_REPLY, + /* Number of distinct IP_CT types (no NEW in reply dirn). */ + IP_CT_NUMBER = IP_CT_IS_REPLY * 2 - 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), + + /* Conntrack is a template */ + IPS_TEMPLATE_BIT = 11, + IPS_TEMPLATE = (1 << IPS_TEMPLATE_BIT), + + /* Conntrack is a fake untracked entry */ + IPS_UNTRACKED_BIT = 12, + IPS_UNTRACKED = (1 << IPS_UNTRACKED_BIT), + + /* Conntrack got a helper explicitly attached via CT target. */ + IPS_HELPER_BIT = 13, + IPS_HELPER = (1 << IPS_HELPER_BIT), +}; + +/* Connection tracking event types */ +enum ip_conntrack_events { + IPCT_NEW, /* new conntrack */ + IPCT_RELATED, /* related conntrack */ + IPCT_DESTROY, /* destroyed conntrack */ + IPCT_REPLY, /* connection has seen two-way traffic */ + IPCT_ASSURED, /* connection status has changed to assured */ + IPCT_PROTOINFO, /* protocol information has changed */ + IPCT_HELPER, /* new helper has been set */ + IPCT_MARK, /* new mark has been set */ + IPCT_NATSEQADJ, /* NAT is doing sequence adjustment */ + IPCT_SECMARK, /* new security mark has been set */ +}; + +enum ip_conntrack_expect_events { + IPEXP_NEW, /* new expectation */ + IPEXP_DESTROY, /* destroyed expectation */ +}; + +/* expectation flags */ +#define NF_CT_EXPECT_PERMANENT 0x1 +#define NF_CT_EXPECT_INACTIVE 0x2 +#define NF_CT_EXPECT_USERSPACE 0x4 + + +#endif /* _UAPI_NF_CONNTRACK_COMMON_H */ diff --git a/include/uapi/linux/netfilter/nf_conntrack_ftp.h b/include/uapi/linux/netfilter/nf_conntrack_ftp.h new file mode 100644 index 000000000000..1030315a41b5 --- /dev/null +++ b/include/uapi/linux/netfilter/nf_conntrack_ftp.h @@ -0,0 +1,18 @@ +#ifndef _UAPI_NF_CONNTRACK_FTP_H +#define _UAPI_NF_CONNTRACK_FTP_H +/* FTP tracking. */ + +/* This enum is exposed to userspace */ +enum nf_ct_ftp_type { + /* PORT command from client */ + NF_CT_FTP_PORT, + /* PASV response from server */ + NF_CT_FTP_PASV, + /* EPRT command from client */ + NF_CT_FTP_EPRT, + /* EPSV response from server */ + NF_CT_FTP_EPSV, +}; + + +#endif /* _UAPI_NF_CONNTRACK_FTP_H */ diff --git a/include/uapi/linux/netfilter/nf_conntrack_sctp.h b/include/uapi/linux/netfilter/nf_conntrack_sctp.h new file mode 100644 index 000000000000..ceeefe6681b5 --- /dev/null +++ b/include/uapi/linux/netfilter/nf_conntrack_sctp.h @@ -0,0 +1,25 @@ +#ifndef _NF_CONNTRACK_SCTP_H +#define _NF_CONNTRACK_SCTP_H +/* SCTP tracking. */ + +#include <linux/netfilter/nf_conntrack_tuple_common.h> + +enum sctp_conntrack { + SCTP_CONNTRACK_NONE, + SCTP_CONNTRACK_CLOSED, + SCTP_CONNTRACK_COOKIE_WAIT, + SCTP_CONNTRACK_COOKIE_ECHOED, + SCTP_CONNTRACK_ESTABLISHED, + SCTP_CONNTRACK_SHUTDOWN_SENT, + SCTP_CONNTRACK_SHUTDOWN_RECD, + SCTP_CONNTRACK_SHUTDOWN_ACK_SENT, + SCTP_CONNTRACK_MAX +}; + +struct ip_ct_sctp { + enum sctp_conntrack state; + + __be32 vtag[IP_CT_DIR_MAX]; +}; + +#endif /* _NF_CONNTRACK_SCTP_H */ diff --git a/include/uapi/linux/netfilter/nf_conntrack_tcp.h b/include/uapi/linux/netfilter/nf_conntrack_tcp.h new file mode 100644 index 000000000000..9993a421201c --- /dev/null +++ b/include/uapi/linux/netfilter/nf_conntrack_tcp.h @@ -0,0 +1,51 @@ +#ifndef _UAPI_NF_CONNTRACK_TCP_H +#define _UAPI_NF_CONNTRACK_TCP_H +/* TCP tracking. */ + +#include <linux/types.h> + +/* This is exposed to userspace (ctnetlink) */ +enum tcp_conntrack { + TCP_CONNTRACK_NONE, + TCP_CONNTRACK_SYN_SENT, + TCP_CONNTRACK_SYN_RECV, + TCP_CONNTRACK_ESTABLISHED, + TCP_CONNTRACK_FIN_WAIT, + TCP_CONNTRACK_CLOSE_WAIT, + TCP_CONNTRACK_LAST_ACK, + TCP_CONNTRACK_TIME_WAIT, + TCP_CONNTRACK_CLOSE, + TCP_CONNTRACK_LISTEN, /* obsolete */ +#define TCP_CONNTRACK_SYN_SENT2 TCP_CONNTRACK_LISTEN + TCP_CONNTRACK_MAX, + TCP_CONNTRACK_IGNORE, + TCP_CONNTRACK_RETRANS, + TCP_CONNTRACK_UNACK, + TCP_CONNTRACK_TIMEOUT_MAX +}; + +/* Window scaling is advertised by the sender */ +#define IP_CT_TCP_FLAG_WINDOW_SCALE 0x01 + +/* SACK is permitted by the sender */ +#define IP_CT_TCP_FLAG_SACK_PERM 0x02 + +/* This sender sent FIN first */ +#define IP_CT_TCP_FLAG_CLOSE_INIT 0x04 + +/* Be liberal in window checking */ +#define IP_CT_TCP_FLAG_BE_LIBERAL 0x08 + +/* Has unacknowledged data */ +#define IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED 0x10 + +/* The field td_maxack has been set */ +#define IP_CT_TCP_FLAG_MAXACK_SET 0x20 + +struct nf_ct_tcp_flags { + __u8 flags; + __u8 mask; +}; + + +#endif /* _UAPI_NF_CONNTRACK_TCP_H */ diff --git a/include/uapi/linux/netfilter/nf_conntrack_tuple_common.h b/include/uapi/linux/netfilter/nf_conntrack_tuple_common.h new file mode 100644 index 000000000000..2f6bbc5b8125 --- /dev/null +++ b/include/uapi/linux/netfilter/nf_conntrack_tuple_common.h @@ -0,0 +1,39 @@ +#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 +}; + +/* The protocol-specific manipulable parts of the tuple: always in + * network order + */ +union nf_conntrack_man_proto { + /* Add other protocols here. */ + __be16 all; + + struct { + __be16 port; + } tcp; + struct { + __be16 port; + } udp; + struct { + __be16 id; + } icmp; + struct { + __be16 port; + } dccp; + struct { + __be16 port; + } sctp; + struct { + __be16 key; /* GRE key is 32bit, PPtP only uses 16bit */ + } gre; +}; + +#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/uapi/linux/netfilter/nf_nat.h b/include/uapi/linux/netfilter/nf_nat.h new file mode 100644 index 000000000000..bf0cc373ffb6 --- /dev/null +++ b/include/uapi/linux/netfilter/nf_nat.h @@ -0,0 +1,33 @@ +#ifndef _NETFILTER_NF_NAT_H +#define _NETFILTER_NF_NAT_H + +#include <linux/netfilter.h> +#include <linux/netfilter/nf_conntrack_tuple_common.h> + +#define NF_NAT_RANGE_MAP_IPS 1 +#define NF_NAT_RANGE_PROTO_SPECIFIED 2 +#define NF_NAT_RANGE_PROTO_RANDOM 4 +#define NF_NAT_RANGE_PERSISTENT 8 + +struct nf_nat_ipv4_range { + unsigned int flags; + __be32 min_ip; + __be32 max_ip; + union nf_conntrack_man_proto min; + union nf_conntrack_man_proto max; +}; + +struct nf_nat_ipv4_multi_range_compat { + unsigned int rangesize; + struct nf_nat_ipv4_range range[1]; +}; + +struct nf_nat_range { + unsigned int flags; + union nf_inet_addr min_addr; + union nf_inet_addr max_addr; + union nf_conntrack_man_proto min_proto; + union nf_conntrack_man_proto max_proto; +}; + +#endif /* _NETFILTER_NF_NAT_H */ diff --git a/include/uapi/linux/netfilter/nfnetlink.h b/include/uapi/linux/netfilter/nfnetlink.h new file mode 100644 index 000000000000..4a4efafad5f4 --- /dev/null +++ b/include/uapi/linux/netfilter/nfnetlink.h @@ -0,0 +1,56 @@ +#ifndef _UAPI_NFNETLINK_H +#define _UAPI_NFNETLINK_H +#include <linux/types.h> +#include <linux/netfilter/nfnetlink_compat.h> + +enum nfnetlink_groups { + NFNLGRP_NONE, +#define NFNLGRP_NONE NFNLGRP_NONE + NFNLGRP_CONNTRACK_NEW, +#define NFNLGRP_CONNTRACK_NEW NFNLGRP_CONNTRACK_NEW + NFNLGRP_CONNTRACK_UPDATE, +#define NFNLGRP_CONNTRACK_UPDATE NFNLGRP_CONNTRACK_UPDATE + NFNLGRP_CONNTRACK_DESTROY, +#define NFNLGRP_CONNTRACK_DESTROY NFNLGRP_CONNTRACK_DESTROY + NFNLGRP_CONNTRACK_EXP_NEW, +#define NFNLGRP_CONNTRACK_EXP_NEW NFNLGRP_CONNTRACK_EXP_NEW + NFNLGRP_CONNTRACK_EXP_UPDATE, +#define NFNLGRP_CONNTRACK_EXP_UPDATE NFNLGRP_CONNTRACK_EXP_UPDATE + NFNLGRP_CONNTRACK_EXP_DESTROY, +#define NFNLGRP_CONNTRACK_EXP_DESTROY NFNLGRP_CONNTRACK_EXP_DESTROY + __NFNLGRP_MAX, +}; +#define NFNLGRP_MAX (__NFNLGRP_MAX - 1) + +/* General form of address family dependent message. + */ +struct nfgenmsg { + __u8 nfgen_family; /* AF_xxx */ + __u8 version; /* nfnetlink version */ + __be16 res_id; /* resource id */ +}; + +#define NFNETLINK_V0 0 + +/* netfilter netlink message types are split in two pieces: + * 8 bit subsystem, 8bit operation. + */ + +#define NFNL_SUBSYS_ID(x) ((x & 0xff00) >> 8) +#define NFNL_MSG_TYPE(x) (x & 0x00ff) + +/* No enum here, otherwise __stringify() trick of MODULE_ALIAS_NFNL_SUBSYS() + * won't work anymore */ +#define NFNL_SUBSYS_NONE 0 +#define NFNL_SUBSYS_CTNETLINK 1 +#define NFNL_SUBSYS_CTNETLINK_EXP 2 +#define NFNL_SUBSYS_QUEUE 3 +#define NFNL_SUBSYS_ULOG 4 +#define NFNL_SUBSYS_OSF 5 +#define NFNL_SUBSYS_IPSET 6 +#define NFNL_SUBSYS_ACCT 7 +#define NFNL_SUBSYS_CTNETLINK_TIMEOUT 8 +#define NFNL_SUBSYS_CTHELPER 9 +#define NFNL_SUBSYS_COUNT 10 + +#endif /* _UAPI_NFNETLINK_H */ diff --git a/include/uapi/linux/netfilter/nfnetlink_acct.h b/include/uapi/linux/netfilter/nfnetlink_acct.h new file mode 100644 index 000000000000..c7b6269e760b --- /dev/null +++ b/include/uapi/linux/netfilter/nfnetlink_acct.h @@ -0,0 +1,27 @@ +#ifndef _UAPI_NFNL_ACCT_H_ +#define _UAPI_NFNL_ACCT_H_ + +#ifndef NFACCT_NAME_MAX +#define NFACCT_NAME_MAX 32 +#endif + +enum nfnl_acct_msg_types { + NFNL_MSG_ACCT_NEW, + NFNL_MSG_ACCT_GET, + NFNL_MSG_ACCT_GET_CTRZERO, + NFNL_MSG_ACCT_DEL, + NFNL_MSG_ACCT_MAX +}; + +enum nfnl_acct_type { + NFAC |