[ovs-dev] [PATCH v4 01/11] Windows: Add conntrack netfilter netlink definitions to kernel and userspace

Nithin Raju nithin at vmware.com
Fri Jul 1 01:30:13 UTC 2016


Acked-by: Nithin Raju <nithin at vmware.com>

-----Original Message-----
From: dev <dev-bounces at openvswitch.org> on behalf of Sairam Venugopal
<vsairam at vmware.com>
Date: Wednesday, June 29, 2016 at 5:08 PM
To: "dev at openvswitch.org" <dev at openvswitch.org>
Subject: [ovs-dev] [PATCH v4 01/11] Windows: Add conntrack netfilter
netlink	definitions to kernel and userspace

>Include netfilter-conntrack header definitions. This will be used by
>Windows userspace for adding debugging support in Conntrack. Few of these
>files are intentionally left blank to avoid removing #includes in
>userspace. New file - OvsDpInterfaceCtExt.h has been defined similar to
>OvsDpInterfaceExt.h to be reused by userspace and kernel.
>
>Signed-off-by: Sairam Venugopal <vsairam at vmware.com>
>---
> build-aux/extract-odp-netlink-h                    |   1 +
> datapath-windows/automake.mk                       |   1 +
> datapath-windows/include/OvsDpInterfaceCtExt.h     | 423
>+++++++++++++++++++++
> datapath-windows/ovsext/ovsext.vcxproj             |   1 +
> datapath-windows/ovsext/precomp.h                  |   1 +
> include/windows/automake.mk                        |   6 +
> .../windows/linux/netfilter/nf_conntrack_common.h  |   0
> include/windows/linux/netfilter/nf_conntrack_ftp.h |   0
> .../windows/linux/netfilter/nf_conntrack_sctp.h    |   0
> include/windows/linux/netfilter/nf_conntrack_tcp.h |   0
> include/windows/linux/netfilter/nfnetlink.h        |   0
> .../windows/linux/netfilter/nfnetlink_conntrack.h  |   0
> 12 files changed, 433 insertions(+)
> create mode 100644 datapath-windows/include/OvsDpInterfaceCtExt.h
> create mode 100644 include/windows/linux/netfilter/nf_conntrack_common.h
> create mode 100644 include/windows/linux/netfilter/nf_conntrack_ftp.h
> create mode 100644 include/windows/linux/netfilter/nf_conntrack_sctp.h
> create mode 100644 include/windows/linux/netfilter/nf_conntrack_tcp.h
> create mode 100644 include/windows/linux/netfilter/nfnetlink.h
> create mode 100644 include/windows/linux/netfilter/nfnetlink_conntrack.h
>
>diff --git a/build-aux/extract-odp-netlink-h
>b/build-aux/extract-odp-netlink-h
>index aafe69a..111c5cb 100755
>--- a/build-aux/extract-odp-netlink-h
>+++ b/build-aux/extract-odp-netlink-h
>@@ -18,6 +18,7 @@ s/_LINUX_OPENVSWITCH_H/ODP_NETLINK_H/
> $i\
> #ifdef _WIN32\
> #include "OvsDpInterfaceExt.h"\
>+#include "OvsDpInterfaceCtExt.h"\
> #endif\
> 
> # Use OVS's own struct eth_addr instead of a 6-byte char array.
>diff --git a/datapath-windows/automake.mk b/datapath-windows/automake.mk
>index 668cf2c..c34934b 100644
>--- a/datapath-windows/automake.mk
>+++ b/datapath-windows/automake.mk
>@@ -4,6 +4,7 @@ EXTRA_DIST += \
> 	datapath-windows/Package/package.VcxProj \
> 	datapath-windows/Package/package.VcxProj.user \
> 	datapath-windows/include/OvsDpInterfaceExt.h \
>+	datapath-windows/include/OvsDpInterfaceCtExt.h \
> 	datapath-windows/misc/OVS.psm1 \
> 	datapath-windows/misc/install.cmd \
> 	datapath-windows/misc/uninstall.cmd \
>diff --git a/datapath-windows/include/OvsDpInterfaceCtExt.h
>b/datapath-windows/include/OvsDpInterfaceCtExt.h
>new file mode 100644
>index 0000000..2795edc
>--- /dev/null
>+++ b/datapath-windows/include/OvsDpInterfaceCtExt.h
>@@ -0,0 +1,423 @@
>+/*
>+ * Copyright (c) 2016 VMware, Inc.
>+ *
>+ * Licensed under the Apache License, Version 2.0 (the "License");
>+ * you may not use this file except in compliance with the License.
>+ * You may obtain a copy of the License at:
>+ *
>+ *     
>https://urldefense.proofpoint.com/v2/url?u=http-3A__www.apache.org_license
>s_LICENSE-2D2.0&d=CwIGaQ&c=Sqcl0Ez6M0X8aeM67LKIiDJAXVeAw-YihVMNtXt-uEs&r=p
>NHQcdr7B40b4h6Yb7FIedI1dnBsxdDuTLBYD3JqV80&m=1pUfCWy4l0NuhIqJSNKiI4fLJGLXq
>rlJ9N1QEIxd9mk&s=pnCUJGnWFBH4mx0yAcuM-X4vygzcG4NVBp9TKV1sADE&e=
>+ *
>+ * Unless required by applicable law or agreed to in writing, software
>+ * distributed under the License is distributed on an "AS IS" BASIS,
>+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
>implied.
>+ * See the License for the specific language governing permissions and
>+ * limitations under the License.
>+ */
>+
>+#ifndef __OVS_DP_INTERFACE_CT_EXT_H_
>+#define __OVS_DP_INTERFACE_CT_EXT_H_ 1
>+
>+/* Conntrack Netlink headers */
>+#define NFNL_TYPE_CT_GET (NFNL_SUBSYS_CTNETLINK << 8 | IPCTNL_MSG_CT_GET)
>+#define NFNL_TYPE_CT_DEL (NFNL_SUBSYS_CTNETLINK << 8 |
>IPCTNL_MSG_CT_DELETE)
>+#define IS_NFNL_CMD(nlmsgType) ((nlmsgType == NFNL_TYPE_CT_GET) \
>+                                 || (nlmsgType == NFNL_TYPE_CT_DEL))
>+#define OVS_NL_CT_ATTR_MAX (IPCTNL_MSG_MAX - 1)
>+
>+#define OVS_CT_FAMILY  "ovs_ct"
>+#define OVS_CT_MCGROUP "ovs_ct"
>+#define OVS_CT_VERSION 1
>+
>+/* File: nfnetlink.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_NFTABLES,
>+#define NFNLGRP_NFTABLES    NFNLGRP_NFTABLES
>+    __NFNLGRP_MAX,
>+};
>+#define NFNLGRP_MAX (__NFNLGRP_MAX - 1)
>+
>+struct nfgenmsg {
>+    UINT8  nfgen_family;        /* AF_xxx (AF_UNSPEC/AF_INET/AF_INET6) */
>+    UINT8  version;             /* nfnetlink version (currently set to
>v0) */
>+    UINT16 res_id;              /* resource id (unused in Windows) */
>+    struct ovs_header ovsHdr;   /* Pad this for Windows */
>+};
>+
>+#define NFNETLINK_V0    0
>+#define NFNL_SUBSYS_ID(x)   ((x & 0xff00) >> 8)
>+#define NFNL_MSG_TYPE(x)    (x & 0x00ff)
>+
>+#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_NFTABLES            10
>+#define NFNL_SUBSYS_NFT_COMPAT          11
>+#define NFNL_SUBSYS_COUNT               12
>+
>+#define NFNL_MSG_BATCH_BEGIN    NLMSG_MIN_TYPE
>+#define NFNL_MSG_BATCH_END      NLMSG_MIN_TYPE+1
>+
>+/* File: nf_conntrack_common.h */
>+enum ip_conntrack_info {
>+    IP_CT_ESTABLISHED,
>+    IP_CT_RELATED,
>+    IP_CT_NEW,
>+    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,
>+    IP_CT_NUMBER = IP_CT_IS_REPLY * 2 - 1
>+};
>+
>+enum ip_conntrack_status {
>+    IPS_EXPECTED_BIT = 0,
>+    IPS_EXPECTED = (1 << IPS_EXPECTED_BIT),
>+    IPS_SEEN_REPLY_BIT = 1,
>+    IPS_SEEN_REPLY = (1 << IPS_SEEN_REPLY_BIT),
>+    IPS_ASSURED_BIT = 2,
>+    IPS_ASSURED = (1 << IPS_ASSURED_BIT),
>+    IPS_CONFIRMED_BIT = 3,
>+    IPS_CONFIRMED = (1 << IPS_CONFIRMED_BIT),
>+    IPS_SRC_NAT_BIT = 4,
>+    IPS_SRC_NAT = (1 << IPS_SRC_NAT_BIT),
>+    IPS_DST_NAT_BIT = 5,
>+    IPS_DST_NAT = (1 << IPS_DST_NAT_BIT),
>+    IPS_NAT_MASK = (IPS_DST_NAT | IPS_SRC_NAT),
>+    IPS_SEQ_ADJUST_BIT = 6,
>+    IPS_SEQ_ADJUST = (1 << IPS_SEQ_ADJUST_BIT),
>+    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),
>+    IPS_NAT_DONE_MASK = (IPS_DST_NAT_DONE | IPS_SRC_NAT_DONE),
>+    IPS_DYING_BIT = 9,
>+    IPS_DYING = (1 << IPS_DYING_BIT),
>+    IPS_FIXED_TIMEOUT_BIT = 10,
>+    IPS_FIXED_TIMEOUT = (1 << IPS_FIXED_TIMEOUT_BIT),
>+    IPS_TEMPLATE_BIT = 11,
>+    IPS_TEMPLATE = (1 << IPS_TEMPLATE_BIT),
>+    IPS_UNTRACKED_BIT = 12,
>+    IPS_UNTRACKED = (1 << IPS_UNTRACKED_BIT),
>+};
>+
>+enum ip_conntrack_events {
>+    IPCT_NEW,
>+    IPCT_RELATED,
>+    IPCT_DESTROY,
>+    IPCT_REPLY,
>+    IPCT_ASSURED,
>+    IPCT_PROTOINFO,
>+    IPCT_HELPER,
>+    IPCT_MARK,
>+    IPCT_NATSEQADJ,
>+    IPCT_SECMARK,
>+};
>+
>+enum ip_conntrack_expect_events {
>+    IPEXP_NEW,
>+    IPEXP_DESTROY,
>+};
>+
>+#define NF_CT_EXPECT_PERMANENT  0x1
>+#define NF_CT_EXPECT_INACTIVE   0x2
>+#define NF_CT_EXPECT_USERSPACE  0x4
>+
>+/* File: nfnetlink_conntrack.h */
>+enum cntl_msg_types {
>+    IPCTNL_MSG_CT_NEW,
>+    IPCTNL_MSG_CT_GET,
>+    IPCTNL_MSG_CT_DELETE,
>+    IPCTNL_MSG_CT_GET_CTRZERO,
>+    IPCTNL_MSG_CT_GET_STATS_CPU,
>+    IPCTNL_MSG_CT_GET_STATS,
>+    IPCTNL_MSG_CT_GET_DYING,
>+    IPCTNL_MSG_CT_GET_UNCONFIRMED,
>+    IPCTNL_MSG_MAX
>+};
>+
>+enum ctnl_exp_msg_types {
>+    IPCTNL_MSG_EXP_NEW,
>+    IPCTNL_MSG_EXP_GET,
>+    IPCTNL_MSG_EXP_DELETE,
>+    IPCTNL_MSG_EXP_GET_STATS_CPU,
>+    IPCTNL_MSG_EXP_MAX
>+};
>+
>+enum ctattr_type {
>+    CTA_UNSPEC,
>+    CTA_TUPLE_ORIG,
>+    CTA_TUPLE_REPLY,
>+    CTA_STATUS,
>+    CTA_PROTOINFO,
>+    CTA_HELP,
>+    CTA_NAT_SRC,
>+#define CTA_NAT CTA_NAT_SRC
>+    CTA_TIMEOUT,
>+    CTA_MARK,
>+    CTA_COUNTERS_ORIG,
>+    CTA_COUNTERS_REPLY,
>+    CTA_USE,
>+    CTA_ID,
>+    CTA_NAT_DST,
>+    CTA_TUPLE_MASTER,
>+    CTA_NAT_SEQ_ADJ_ORIG,
>+    CTA_NAT_SEQ_ADJ_REPLY,
>+    CTA_SECMARK,
>+    CTA_ZONE,
>+    CTA_SECCTX,
>+    CTA_TIMESTAMP,
>+    CTA_MARK_MASK,
>+    CTA_LABELS,
>+    CTA_LABELS_MASK,
>+    __CTA_MAX
>+};
>+#define CTA_MAX (__CTA_MAX - 1)
>+
>+enum ctattr_tuple {
>+    CTA_TUPLE_UNSPEC,
>+    CTA_TUPLE_IP,
>+    CTA_TUPLE_PROTO,
>+    __CTA_TUPLE_MAX
>+};
>+#define CTA_TUPLE_MAX (__CTA_TUPLE_MAX - 1)
>+
>+enum ctattr_ip {
>+    CTA_IP_UNSPEC,
>+    CTA_IP_V4_SRC,
>+    CTA_IP_V4_DST,
>+    CTA_IP_V6_SRC,
>+    CTA_IP_V6_DST,
>+    __CTA_IP_MAX
>+};
>+#define CTA_IP_MAX (__CTA_IP_MAX - 1)
>+
>+enum ctattr_l4proto {
>+    CTA_PROTO_UNSPEC,
>+    CTA_PROTO_NUM,
>+    CTA_PROTO_SRC_PORT,
>+    CTA_PROTO_DST_PORT,
>+    CTA_PROTO_ICMP_ID,
>+    CTA_PROTO_ICMP_TYPE,
>+    CTA_PROTO_ICMP_CODE,
>+    CTA_PROTO_ICMPV6_ID,
>+    CTA_PROTO_ICMPV6_TYPE,
>+    CTA_PROTO_ICMPV6_CODE,
>+    __CTA_PROTO_MAX
>+};
>+#define CTA_PROTO_MAX (__CTA_PROTO_MAX - 1)
>+
>+enum ctattr_protoinfo {
>+    CTA_PROTOINFO_UNSPEC,
>+    CTA_PROTOINFO_TCP,
>+    CTA_PROTOINFO_DCCP,
>+    CTA_PROTOINFO_SCTP,
>+    __CTA_PROTOINFO_MAX
>+};
>+#define CTA_PROTOINFO_MAX (__CTA_PROTOINFO_MAX - 1)
>+
>+enum ctattr_protoinfo_tcp {
>+    CTA_PROTOINFO_TCP_UNSPEC,
>+    CTA_PROTOINFO_TCP_STATE,
>+    CTA_PROTOINFO_TCP_WSCALE_ORIGINAL,
>+    CTA_PROTOINFO_TCP_WSCALE_REPLY,
>+    CTA_PROTOINFO_TCP_FLAGS_ORIGINAL,
>+    CTA_PROTOINFO_TCP_FLAGS_REPLY,
>+    __CTA_PROTOINFO_TCP_MAX
>+};
>+#define CTA_PROTOINFO_TCP_MAX (__CTA_PROTOINFO_TCP_MAX - 1)
>+
>+enum ctattr_protoinfo_dccp {
>+    CTA_PROTOINFO_DCCP_UNSPEC,
>+    CTA_PROTOINFO_DCCP_STATE,
>+    CTA_PROTOINFO_DCCP_ROLE,
>+    CTA_PROTOINFO_DCCP_HANDSHAKE_SEQ,
>+    __CTA_PROTOINFO_DCCP_MAX,
>+};
>+#define CTA_PROTOINFO_DCCP_MAX (__CTA_PROTOINFO_DCCP_MAX - 1)
>+
>+enum ctattr_protoinfo_sctp {
>+    CTA_PROTOINFO_SCTP_UNSPEC,
>+    CTA_PROTOINFO_SCTP_STATE,
>+    CTA_PROTOINFO_SCTP_VTAG_ORIGINAL,
>+    CTA_PROTOINFO_SCTP_VTAG_REPLY,
>+    __CTA_PROTOINFO_SCTP_MAX
>+};
>+#define CTA_PROTOINFO_SCTP_MAX (__CTA_PROTOINFO_SCTP_MAX - 1)
>+
>+enum ctattr_counters {
>+    CTA_COUNTERS_UNSPEC,
>+    CTA_COUNTERS_PACKETS,
>+    CTA_COUNTERS_BYTES,
>+    CTA_COUNTERS32_PACKETS,
>+    CTA_COUNTERS32_BYTES,
>+    __CTA_COUNTERS_MAX
>+};
>+#define CTA_COUNTERS_MAX (__CTA_COUNTERS_MAX - 1)
>+
>+enum ctattr_tstamp {
>+    CTA_TIMESTAMP_UNSPEC,
>+    CTA_TIMESTAMP_START,
>+    CTA_TIMESTAMP_STOP,
>+    __CTA_TIMESTAMP_MAX
>+};
>+#define CTA_TIMESTAMP_MAX (__CTA_TIMESTAMP_MAX - 1)
>+
>+enum ctattr_nat {
>+    CTA_NAT_UNSPEC,
>+    CTA_NAT_V4_MINIP,
>+#define CTA_NAT_MINIP CTA_NAT_V4_MINIP
>+    CTA_NAT_V4_MAXIP,
>+#define CTA_NAT_MAXIP CTA_NAT_V4_MAXIP
>+    CTA_NAT_PROTO,
>+    CTA_NAT_V6_MINIP,
>+    CTA_NAT_V6_MAXIP,
>+    __CTA_NAT_MAX
>+};
>+#define CTA_NAT_MAX (__CTA_NAT_MAX - 1)
>+
>+enum ctattr_protonat {
>+    CTA_PROTONAT_UNSPEC,
>+    CTA_PROTONAT_PORT_MIN,
>+    CTA_PROTONAT_PORT_MAX,
>+    __CTA_PROTONAT_MAX
>+};
>+#define CTA_PROTONAT_MAX (__CTA_PROTONAT_MAX - 1)
>+
>+enum ctattr_natseq {
>+    CTA_NAT_SEQ_UNSPEC,
>+    CTA_NAT_SEQ_CORRECTION_POS,
>+    CTA_NAT_SEQ_OFFSET_BEFORE,
>+    CTA_NAT_SEQ_OFFSET_AFTER,
>+    __CTA_NAT_SEQ_MAX
>+};
>+#define CTA_NAT_SEQ_MAX (__CTA_NAT_SEQ_MAX - 1)
>+
>+enum ctattr_expect {
>+    CTA_EXPECT_UNSPEC,
>+    CTA_EXPECT_MASTER,
>+    CTA_EXPECT_TUPLE,
>+    CTA_EXPECT_MASK,
>+    CTA_EXPECT_TIMEOUT,
>+    CTA_EXPECT_ID,
>+    CTA_EXPECT_HELP_NAME,
>+    CTA_EXPECT_ZONE,
>+    CTA_EXPECT_FLAGS,
>+    CTA_EXPECT_CLASS,
>+    CTA_EXPECT_NAT,
>+    CTA_EXPECT_FN,
>+    __CTA_EXPECT_MAX
>+};
>+#define CTA_EXPECT_MAX (__CTA_EXPECT_MAX - 1)
>+
>+enum ctattr_expect_nat {
>+    CTA_EXPECT_NAT_UNSPEC,
>+    CTA_EXPECT_NAT_DIR,
>+    CTA_EXPECT_NAT_TUPLE,
>+    __CTA_EXPECT_NAT_MAX
>+};
>+#define CTA_EXPECT_NAT_MAX (__CTA_EXPECT_NAT_MAX - 1)
>+
>+enum ctattr_help {
>+    CTA_HELP_UNSPEC,
>+    CTA_HELP_NAME,
>+    CTA_HELP_INFO,
>+    __CTA_HELP_MAX
>+};
>+#define CTA_HELP_MAX (__CTA_HELP_MAX - 1)
>+
>+enum ctattr_secctx {
>+    CTA_SECCTX_UNSPEC,
>+    CTA_SECCTX_NAME,
>+    __CTA_SECCTX_MAX
>+};
>+#define CTA_SECCTX_MAX (__CTA_SECCTX_MAX - 1)
>+
>+enum ctattr_stats_cpu {
>+    CTA_STATS_UNSPEC,
>+    CTA_STATS_SEARCHED,
>+    CTA_STATS_FOUND,
>+    CTA_STATS_NEW,
>+    CTA_STATS_INVALID,
>+    CTA_STATS_IGNORE,
>+    CTA_STATS_DELETE,
>+    CTA_STATS_DELETE_LIST,
>+    CTA_STATS_INSERT,
>+    CTA_STATS_INSERT_FAILED,
>+    CTA_STATS_DROP,
>+    CTA_STATS_EARLY_DROP,
>+    CTA_STATS_ERROR,
>+    CTA_STATS_SEARCH_RESTART,
>+    __CTA_STATS_MAX,
>+};
>+#define CTA_STATS_MAX (__CTA_STATS_MAX - 1)
>+
>+enum ctattr_stats_global {
>+    CTA_STATS_GLOBAL_UNSPEC,
>+    CTA_STATS_GLOBAL_ENTRIES,
>+    __CTA_STATS_GLOBAL_MAX,
>+};
>+#define CTA_STATS_GLOBAL_MAX (__CTA_STATS_GLOBAL_MAX - 1)
>+
>+enum ctattr_expect_stats {
>+    CTA_STATS_EXP_UNSPEC,
>+    CTA_STATS_EXP_NEW,
>+    CTA_STATS_EXP_CREATE,
>+    CTA_STATS_EXP_DELETE,
>+    __CTA_STATS_EXP_MAX,
>+};
>+#define CTA_STATS_EXP_MAX (__CTA_STATS_EXP_MAX - 1)
>+
>+/* File: nf_conntrack_tcp.h */
>+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,
>+#define TCP_CONNTRACK_SYN_SENT2 TCP_CONNTRACK_LISTEN
>+    TCP_CONNTRACK_MAX,
>+    TCP_CONNTRACK_IGNORE,
>+    TCP_CONNTRACK_RETRANS,
>+    TCP_CONNTRACK_UNACK,
>+    TCP_CONNTRACK_TIMEOUT_MAX
>+};
>+
>+#define IP_CT_TCP_FLAG_WINDOW_SCALE     0x01
>+#define IP_CT_TCP_FLAG_SACK_PERM        0x02
>+#define IP_CT_TCP_FLAG_CLOSE_INIT       0x04
>+#define IP_CT_TCP_FLAG_BE_LIBERAL       0x08
>+#define IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED  0x10
>+#define IP_CT_TCP_FLAG_MAXACK_SET       0x20
>+
>+struct nf_ct_tcp_flags {
>+    UINT8 flags;
>+    UINT8 mask;
>+};
>+
>+#endif /* __OVS_DP_INTERFACE_CT_EXT_H_ */
>diff --git a/datapath-windows/ovsext/ovsext.vcxproj
>b/datapath-windows/ovsext/ovsext.vcxproj
>index 0ad4c58..e0d764b 100644
>--- a/datapath-windows/ovsext/ovsext.vcxproj
>+++ b/datapath-windows/ovsext/ovsext.vcxproj
>@@ -70,6 +70,7 @@
>     <Import 
>Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props"
>Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')"
>/>
>   </ImportGroup>
>   <ItemGroup Label="WrappedTaskItems">
>+    <ClInclude Include="..\include\OvsDpInterfaceCtExt.h" />
>     <ClInclude Include="..\include\OvsDpInterfaceExt.h" />
>     <ClInclude Include="Actions.h" />
>     <ClInclude Include="Atomic.h" />
>diff --git a/datapath-windows/ovsext/precomp.h
>b/datapath-windows/ovsext/precomp.h
>index aaa3d51..a152582 100644
>--- a/datapath-windows/ovsext/precomp.h
>+++ b/datapath-windows/ovsext/precomp.h
>@@ -30,4 +30,5 @@
> #include "Netlink/Netlink.h"
> #include "Netlink/NetlinkProto.h"
> #include "..\include\OvsDpInterfaceExt.h"
>+#include "..\include\OvsDpInterfaceCtExt.h"
> #include "DpInternal.h"
>diff --git a/include/windows/automake.mk b/include/windows/automake.mk
>index 58b52f1..382627b 100644
>--- a/include/windows/automake.mk
>+++ b/include/windows/automake.mk
>@@ -9,6 +9,12 @@ noinst_HEADERS += \
> 	include/windows/arpa/inet.h \
> 	include/windows/dirent.h \
> 	include/windows/getopt.h \
>+	include/windows/linux/netfilter/nf_conntrack_common.h \
>+	include/windows/linux/netfilter/nf_conntrack_ftp.h \
>+	include/windows/linux/netfilter/nf_conntrack_sctp.h \
>+	include/windows/linux/netfilter/nf_conntrack_tcp.h \
>+	include/windows/linux/netfilter/nfnetlink.h \
>+	include/windows/linux/netfilter/nfnetlink_conntrack.h \
> 	include/windows/linux/pkt_sched.h \
> 	include/windows/linux/types.h \
> 	include/windows/net/if.h \
>diff --git a/include/windows/linux/netfilter/nf_conntrack_common.h
>b/include/windows/linux/netfilter/nf_conntrack_common.h
>new file mode 100644
>index 0000000..e69de29
>diff --git a/include/windows/linux/netfilter/nf_conntrack_ftp.h
>b/include/windows/linux/netfilter/nf_conntrack_ftp.h
>new file mode 100644
>index 0000000..e69de29
>diff --git a/include/windows/linux/netfilter/nf_conntrack_sctp.h
>b/include/windows/linux/netfilter/nf_conntrack_sctp.h
>new file mode 100644
>index 0000000..e69de29
>diff --git a/include/windows/linux/netfilter/nf_conntrack_tcp.h
>b/include/windows/linux/netfilter/nf_conntrack_tcp.h
>new file mode 100644
>index 0000000..e69de29
>diff --git a/include/windows/linux/netfilter/nfnetlink.h
>b/include/windows/linux/netfilter/nfnetlink.h
>new file mode 100644
>index 0000000..e69de29
>diff --git a/include/windows/linux/netfilter/nfnetlink_conntrack.h
>b/include/windows/linux/netfilter/nfnetlink_conntrack.h
>new file mode 100644
>index 0000000..e69de29
>-- 
>2.5.0.windows.1
>
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