Merge branch 'master' of https://github.com/rmfought/libnl

18 files changed, 2708 insertions, 196 deletions

diff --git a/include/Makefile.am b/include/Makefile.am
index 2ba0ece..80c615c 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -16,6 +16,7 @@ nobase_libnlinclude_HEADERS = \
 	netlink/netfilter/nfnl.h \
 	netlink/netfilter/queue.h \
 	netlink/netfilter/queue_msg.h \
+	netlink/netfilter/exp.h \
 	netlink/addr.h \
 	netlink/attr.h \
 	netlink/cache-api.h \
diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index 1e59984..43979ac 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -1,60 +1,96 @@
 #ifndef _NFNETLINK_H
 #define _NFNETLINK_H
 #include <linux/types.h>
-
-#ifndef __KERNEL__
-/* nfnetlink groups: Up to 32 maximum - backwards compatibility for userspace */
-#define NF_NETLINK_CONNTRACK_NEW 		0x00000001
-#define NF_NETLINK_CONNTRACK_UPDATE		0x00000002
-#define NF_NETLINK_CONNTRACK_DESTROY		0x00000004
-#define NF_NETLINK_CONNTRACK_EXP_NEW		0x00000008
-#define NF_NETLINK_CONNTRACK_EXP_UPDATE		0x00000010
-#define NF_NETLINK_CONNTRACK_EXP_DESTROY	0x00000020
-#endif
+#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,
+    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)
+#define NFNLGRP_MAX (__NFNLGRP_MAX - 1)
 
 /* General form of address family dependent message.
  */
 struct nfgenmsg {
-	u_int8_t  nfgen_family;		/* AF_xxx */
-	u_int8_t  version;		/* nfnetlink version */
-	__be16    res_id;		/* resource id */
+    __u8  nfgen_family;     /* AF_xxx */
+    __u8  version;      /* nfnetlink version */
+    __be16    res_id;       /* resource id */
 };
 
-#define NFNETLINK_V0	0
+#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)
+#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_COUNT		5
-
-#endif	/* _NFNETLINK_H */
+#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
+
+#ifdef __KERNEL__
+
+#include <linux/netlink.h>
+#include <linux/capability.h>
+#include <net/netlink.h>
+
+struct nfnl_callback {
+    int (*call)(struct sock *nl, struct sk_buff *skb,
+            const struct nlmsghdr *nlh,
+            const struct nlattr * const cda[]);
+    int (*call_rcu)(struct sock *nl, struct sk_buff *skb,
+            const struct nlmsghdr *nlh,
+            const struct nlattr * const cda[]);
+    const struct nla_policy *policy;    /* netlink attribute policy */
+    const u_int16_t attr_count;     /* number of nlattr's */
+};
+
+struct nfnetlink_subsystem {
+    const char *name;
+    __u8 subsys_id;         /* nfnetlink subsystem ID */
+    __u8 cb_count;          /* number of callbacks */
+    const struct nfnl_callback *cb; /* callback for individual types */
+};
+
+extern int nfnetlink_subsys_register(const struct nfnetlink_subsystem *n);
+extern int nfnetlink_subsys_unregister(const struct nfnetlink_subsystem *n);
+
+extern int nfnetlink_has_listeners(struct net *net, unsigned int group);
+extern int nfnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, unsigned int group,
+              int echo, gfp_t flags);
+extern int nfnetlink_set_err(struct net *net, u32 pid, u32 group, int error);
+extern int nfnetlink_unicast(struct sk_buff *skb, struct net *net, u_int32_t pid, int flags);
+
+extern void nfnl_lock(void);
+extern void nfnl_unlock(void);
+
+#define MODULE_ALIAS_NFNL_SUBSYS(subsys) \
+    MODULE_ALIAS("nfnetlink-subsys-" __stringify(subsys))
+
+#endif  /* __KERNEL__ */
+#endif  /* _NFNETLINK_H */
diff --git a/include/linux/netfilter/nfnetlink_conntrack.h b/include/linux/netfilter/nfnetlink_conntrack.h
index d7c3503..c91be60 100644
--- a/include/linux/netfilter/nfnetlink_conntrack.h
+++ b/include/linux/netfilter/nfnetlink_conntrack.h
@@ -3,138 +3,242 @@
 #include <linux/netfilter/nfnetlink.h>
 
 enum cntl_msg_types {
-	IPCTNL_MSG_CT_NEW,
-	IPCTNL_MSG_CT_GET,
-	IPCTNL_MSG_CT_DELETE,
-	IPCTNL_MSG_CT_GET_CTRZERO,
-
-	IPCTNL_MSG_MAX
+    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_MAX
 };
 
 enum ctnl_exp_msg_types {
-	IPCTNL_MSG_EXP_NEW,
-	IPCTNL_MSG_EXP_GET,
-	IPCTNL_MSG_EXP_DELETE,
+    IPCTNL_MSG_EXP_NEW,
+    IPCTNL_MSG_EXP_GET,
+    IPCTNL_MSG_EXP_DELETE,
+    IPCTNL_MSG_EXP_GET_STATS_CPU,
 
-	IPCTNL_MSG_EXP_MAX
+    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	/* backwards compatibility */
-	CTA_TIMEOUT,
-	CTA_MARK,
-	CTA_COUNTERS_ORIG,
-	CTA_COUNTERS_REPLY,
-	CTA_USE,
-	CTA_ID,
-	CTA_NAT_DST,
-	__CTA_MAX
+    CTA_UNSPEC,
+    CTA_TUPLE_ORIG,
+    CTA_TUPLE_REPLY,
+    CTA_STATUS,
+    CTA_PROTOINFO,
+    CTA_HELP,
+    CTA_NAT_SRC,
+#define CTA_NAT CTA_NAT_SRC /* backwards compatibility */
+    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,        /* obsolete */
+    CTA_ZONE,
+    CTA_SECCTX,
+    CTA_TIMESTAMP,
+    CTA_MARK_MASK,
+    __CTA_MAX
 };
 #define CTA_MAX (__CTA_MAX - 1)
 
 enum ctattr_tuple {
-	CTA_TUPLE_UNSPEC,
-	CTA_TUPLE_IP,
-	CTA_TUPLE_PROTO,
-	__CTA_TUPLE_MAX
+    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
+    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
+    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_MAX
+    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
+    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,		/* old 64bit counters */
-	CTA_COUNTERS_BYTES,		/* old 64bit counters */
-	CTA_COUNTERS32_PACKETS,
-	CTA_COUNTERS32_BYTES,
-	__CTA_COUNTERS_MAX
+    CTA_COUNTERS_UNSPEC,
+    CTA_COUNTERS_PACKETS,       /* 64bit counters */
+    CTA_COUNTERS_BYTES,     /* 64bit counters */
+    CTA_COUNTERS32_PACKETS,     /* old 32bit counters, unused */
+    CTA_COUNTERS32_BYTES,       /* old 32bit counters, unused */
+    __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_MINIP,
-	CTA_NAT_MAXIP,
-	CTA_NAT_PROTO,
-	__CTA_NAT_MAX
+    CTA_NAT_UNSPEC,
+    CTA_NAT_MINIP,
+    CTA_NAT_MAXIP,
+    CTA_NAT_PROTO,
+    __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
+    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_MAX
+    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_MAX
+    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)
+
 #endif /* _IPCONNTRACK_NETLINK_H */
diff --git a/include/linux/netfilter/nfnetlink_log.h b/include/linux/netfilter/nfnetlink_log.h
index 38fafc1..90c2c95 100644
--- a/include/linux/netfilter/nfnetlink_log.h
+++ b/include/linux/netfilter/nfnetlink_log.h
@@ -5,10 +5,6 @@
  * and not any kind of function definitions.  It is shared between kernel and
  * userspace.  Don't put kernel specific stuff in here */
 
-#ifndef aligned_be64
-#define aligned_be64 u_int64_t __attribute__((aligned(8)))
-#endif
-
 #include <linux/types.h>
 #include <linux/netfilter/nfnetlink.h>
 
@@ -21,30 +17,30 @@ enum nfulnl_msg_types {
 
 struct nfulnl_msg_packet_hdr {
 	__be16		hw_protocol;	/* hw protocol (network order) */
-	u_int8_t	hook;		/* netfilter hook */
-	u_int8_t	_pad;
+	__u8	hook;		/* netfilter hook */
+	__u8	_pad;
 };
 
 struct nfulnl_msg_packet_hw {
 	__be16		hw_addrlen;
-	u_int16_t	_pad;
-	u_int8_t	hw_addr[8];
+	__u16	_pad;
+	__u8	hw_addr[8];
 };
 
 struct nfulnl_msg_packet_timestamp {
-	aligned_be64	sec;
-	aligned_be64	usec;
+	__aligned_be64	sec;
+	__aligned_be64	usec;
 };
 
 enum nfulnl_attr_type {
 	NFULA_UNSPEC,
 	NFULA_PACKET_HDR,
-	NFULA_MARK,			/* u_int32_t nfmark */
+	NFULA_MARK,			/* __u32 nfmark */
 	NFULA_TIMESTAMP,		/* nfulnl_msg_packet_timestamp */
-	NFULA_IFINDEX_INDEV,		/* u_int32_t ifindex */
-	NFULA_IFINDEX_OUTDEV,		/* u_int32_t ifindex */
-	NFULA_IFINDEX_PHYSINDEV,	/* u_int32_t ifindex */
-	NFULA_IFINDEX_PHYSOUTDEV,	/* u_int32_t ifindex */
+	NFULA_IFINDEX_INDEV,		/* __u32 ifindex */
+	NFULA_IFINDEX_OUTDEV,		/* __u32 ifindex */
+	NFULA_IFINDEX_PHYSINDEV,	/* __u32 ifindex */
+	NFULA_IFINDEX_PHYSOUTDEV,	/* __u32 ifindex */
 	NFULA_HWADDR,			/* nfulnl_msg_packet_hw */
 	NFULA_PAYLOAD,			/* opaque data payload */
 	NFULA_PREFIX,			/* string prefix */
@@ -52,6 +48,9 @@ enum nfulnl_attr_type {
 	NFULA_SEQ,			/* instance-local sequence number */
 	NFULA_SEQ_GLOBAL,		/* global sequence number */
 	NFULA_GID,			/* group id of socket */
+	NFULA_HWTYPE,			/* hardware type */
+	NFULA_HWHEADER,			/* hardware header */
+	NFULA_HWLEN,			/* hardware header length */
 
 	__NFULA_MAX
 };
@@ -66,23 +65,23 @@ enum nfulnl_msg_config_cmds {
 };
 
 struct nfulnl_msg_config_cmd {
-	u_int8_t	command;	/* nfulnl_msg_config_cmds */
+	__u8	command;	/* nfulnl_msg_config_cmds */
 } __attribute__ ((packed));
 
 struct nfulnl_msg_config_mode {
 	__be32		copy_range;
-	u_int8_t	copy_mode;
-	u_int8_t	_pad;
+	__u8	copy_mode;
+	__u8	_pad;
 } __attribute__ ((packed));
 
 enum nfulnl_attr_config {
 	NFULA_CFG_UNSPEC,
 	NFULA_CFG_CMD,			/* nfulnl_msg_config_cmd */
 	NFULA_CFG_MODE,			/* nfulnl_msg_config_mode */
-	NFULA_CFG_NLBUFSIZ,		/* u_int32_t buffer size */
-	NFULA_CFG_TIMEOUT,		/* u_int32_t in 1/100 s */
-	NFULA_CFG_QTHRESH,		/* u_int32_t */
-	NFULA_CFG_FLAGS,		/* u_int16_t */
+	NFULA_CFG_NLBUFSIZ,		/* __u32 buffer size */
+	NFULA_CFG_TIMEOUT,		/* __u32 in 1/100 s */
+	NFULA_CFG_QTHRESH,		/* __u32 */
+	NFULA_CFG_FLAGS,		/* __u16 */
 	__NFULA_CFG_MAX
 };
 #define NFULA_CFG_MAX (__NFULA_CFG_MAX -1)
@@ -90,6 +89,7 @@ enum nfulnl_attr_config {
 #define NFULNL_COPY_NONE	0x00
 #define NFULNL_COPY_META	0x01
 #define NFULNL_COPY_PACKET	0x02
+/* 0xff is reserved, don't use it for new copy modes. */
 
 #define NFULNL_CFG_F_SEQ	0x0001
 #define NFULNL_CFG_F_SEQ_GLOBAL	0x0002
diff --git a/include/linux/netfilter/nfnetlink_queue.h b/include/linux/netfilter/nfnetlink_queue.h
index bf7cfb6..5fcd48c 100644
--- a/include/linux/netfilter/nfnetlink_queue.h
+++ b/include/linux/netfilter/nfnetlink_queue.h
@@ -4,91 +4,97 @@
 #include <linux/types.h>
 #include <linux/netfilter/nfnetlink.h>
 
-#ifndef aligned_be64
-#define aligned_be64 u_int64_t __attribute__((aligned(8)))
-#endif
-
 enum nfqnl_msg_types {
-	NFQNL_MSG_PACKET,		/* packet from kernel to userspace */
-	NFQNL_MSG_VERDICT,		/* verdict from userspace to kernel */
-	NFQNL_MSG_CONFIG,		/* connect to a particular queue */
+    NFQNL_MSG_PACKET,       /* packet from kernel to userspace */
+    NFQNL_MSG_VERDICT,      /* verdict from userspace to kernel */
+    NFQNL_MSG_CONFIG,       /* connect to a particular queue */
+    NFQNL_MSG_VERDICT_BATCH,    /* batchv from userspace to kernel */
 
-	NFQNL_MSG_MAX
+    NFQNL_MSG_MAX
 };
 
 struct nfqnl_msg_packet_hdr {
-	__be32		packet_id;	/* unique ID of packet in queue */
-	__be16		hw_protocol;	/* hw protocol (network order) */
-	u_int8_t	hook;		/* netfilter hook */
+    __be32      packet_id;  /* unique ID of packet in queue */
+    __be16      hw_protocol;    /* hw protocol (network order) */
+    __u8    hook;       /* netfilter hook */
 } __attribute__ ((packed));
 
 struct nfqnl_msg_packet_hw {
-	__be16		hw_addrlen;
-	u_int16_t	_pad;
-	u_int8_t	hw_addr[8];
+    __be16      hw_addrlen;
+    __u16   _pad;
+    __u8    hw_addr[8];
 };
 
 struct nfqnl_msg_packet_timestamp {
-	aligned_be64	sec;
-	aligned_be64	usec;
+    __aligned_be64  sec;
+    __aligned_be64  usec;
 };
 
 enum nfqnl_attr_type {
-	NFQA_UNSPEC,
-	NFQA_PACKET_HDR,
-	NFQA_VERDICT_HDR,		/* nfqnl_msg_verdict_hrd */
-	NFQA_MARK,			/* u_int32_t nfmark */
-	NFQA_TIMESTAMP,			/* nfqnl_msg_packet_timestamp */
-	NFQA_IFINDEX_INDEV,		/* u_int32_t ifindex */
-	NFQA_IFINDEX_OUTDEV,		/* u_int32_t ifindex */
-	NFQA_IFINDEX_PHYSINDEV,		/* u_int32_t ifindex */
-	NFQA_IFINDEX_PHYSOUTDEV,	/* u_int32_t ifindex */
-	NFQA_HWADDR,			/* nfqnl_msg_packet_hw */
-	NFQA_PAYLOAD,			/* opaque data payload */
-
-	__NFQA_MAX
+    NFQA_UNSPEC,
+    NFQA_PACKET_HDR,
+    NFQA_VERDICT_HDR,       /* nfqnl_msg_verdict_hrd */
+    NFQA_MARK,          /* __u32 nfmark */
+    NFQA_TIMESTAMP,         /* nfqnl_msg_packet_timestamp */
+    NFQA_IFINDEX_INDEV,     /* __u32 ifindex */
+    NFQA_IFINDEX_OUTDEV,        /* __u32 ifindex */
+    NFQA_IFINDEX_PHYSINDEV,     /* __u32 ifindex */
+    NFQA_IFINDEX_PHYSOUTDEV,    /* __u32 ifindex */
+    NFQA_HWADDR,            /* nfqnl_msg_packet_hw */
+    NFQA_PAYLOAD,           /* opaque data payload */
+    NFQA_CT,            /* nf_conntrack_netlink.h */
+    NFQA_CT_INFO,           /* enum ip_conntrack_info */
+
+    __NFQA_MAX
 };
 #define NFQA_MAX (__NFQA_MAX - 1)
 
 struct nfqnl_msg_verdict_hdr {
-	__be32 verdict;
-	__be32 id;
+    __be32 verdict;
+    __be32 id;
 };
 
 
 enum nfqnl_msg_config_cmds {
-	NFQNL_CFG_CMD_NONE,
-	NFQNL_CFG_CMD_BIND,
-	NFQNL_CFG_CMD_UNBIND,
-	NFQNL_CFG_CMD_PF_BIND,
-	NFQNL_CFG_CMD_PF_UNBIND,
+    NFQNL_CFG_CMD_NONE,
+    NFQNL_CFG_CMD_BIND,
+    NFQNL_CFG_CMD_UNBIND,
+    NFQNL_CFG_CMD_PF_BIND,
+    NFQNL_CFG_CMD_PF_UNBIND,
 };
 
 struct nfqnl_msg_config_cmd {
-	u_int8_t	command;	/* nfqnl_msg_config_cmds */
-	u_int8_t	_pad;
-	__be16		pf;		/* AF_xxx for PF_[UN]BIND */
+    __u8    command;    /* nfqnl_msg_config_cmds */
+    __u8    _pad;
+    __be16      pf;     /* AF_xxx for PF_[UN]BIND */
 };
 
 enum nfqnl_config_mode {
-	NFQNL_COPY_NONE,
-	NFQNL_COPY_META,
-	NFQNL_COPY_PACKET,
+    NFQNL_COPY_NONE,
+    NFQNL_COPY_META,
+    NFQNL_COPY_PACKET,
 };
 
 struct nfqnl_msg_config_params {
-	__be32		copy_range;
-	u_int8_t	copy_mode;	/* enum nfqnl_config_mode */
+    __be32      copy_range;
+    __u8    copy_mode;  /* enum nfqnl_config_mode */
 } __attribute__ ((packed));
 
 
 enum nfqnl_attr_config {
-	NFQA_CFG_UNSPEC,
-	NFQA_CFG_CMD,			/* nfqnl_msg_config_cmd */
-	NFQA_CFG_PARAMS,		/* nfqnl_msg_config_params */
-	NFQA_CFG_QUEUE_MAXLEN,		/* u_int32_t */
-	__NFQA_CFG_MAX
+    NFQA_CFG_UNSPEC,
+    NFQA_CFG_CMD,           /* nfqnl_msg_config_cmd */
+    NFQA_CFG_PARAMS,        /* nfqnl_msg_config_params */
+    NFQA_CFG_QUEUE_MAXLEN,      /* __u32 */
+    NFQA_CFG_MASK,          /* identify which flags to change */
+    NFQA_CFG_FLAGS,         /* value of these flags (__u32) */
+    __NFQA_CFG_MAX
 };
 #define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)
 
+/* Flags for NFQA_CFG_FLAGS */
+#define NFQA_CFG_F_FAIL_OPEN            (1 << 0)
+#define NFQA_CFG_F_CONNTRACK            (1 << 1)
+#define NFQA_CFG_F_MAX              (1 << 2)
+
 #endif /* _NFNETLINK_QUEUE_H */
diff --git a/include/netlink-types.h b/include/netlink-types.h
index 10ef218..23930b8 100644
--- a/include/netlink-types.h
+++ b/include/netlink-types.h
@@ -784,6 +784,50 @@ struct nfnl_ct {
 	struct nfnl_ct_dir	ct_repl;
 };
 
+union nfnl_exp_protodata {
+	struct {
+		uint16_t	src;
+		uint16_t	dst;
+	} port;
+	struct {
+		uint16_t	id;
+		uint8_t		type;
+		uint8_t		code;
+	} icmp;
+};
+
+// Allow for different master/expect l4 protocols
+struct nfnl_exp_proto
+{
+	uint8_t						l4protonum;
+	union nfnl_exp_protodata	l4protodata;
+};
+
+struct nfnl_exp_dir {
+	struct nl_addr *		src;
+	struct nl_addr *		dst;
+	struct nfnl_exp_proto	proto;
+};
+
+struct nfnl_exp {
+	NLHDR_COMMON
+
+	uint8_t			exp_family;
+	uint32_t		exp_timeout;
+	uint32_t		exp_id;
+	uint16_t		exp_zone;
+	uint32_t		exp_class;
+	uint32_t		exp_flags;
+	char *			exp_helper_name;
+	char *			exp_fn;
+	uint8_t			exp_nat_dir;
+
+	struct nfnl_exp_dir		exp_expect;
+	struct nfnl_exp_dir		exp_master;
+	struct nfnl_exp_dir		exp_mask;
+	struct nfnl_exp_dir		exp_nat;
+};
+
 struct nfnl_log {
 	NLHDR_COMMON
 
diff --git a/include/netlink/cli/exp.h b/include/netlink/cli/exp.h
new file mode 100644
index 0000000..b2418f8
--- /dev/null
+++ b/include/netlink/cli/exp.h
@@ -0,0 +1,42 @@
+/*
+ * netlink/cli/exp.h	CLI Expectation Helper
+ *
+ *	This library is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU Lesser General Public
+ *	License as published by the Free Software Foundation version 2.1
+ *	of the License.
+ *
+ * Copyright (c) 2012 Rich Fought <Rich.Fought@watchguard.com>
+ * Copyright (c) 2008-2009 Thomas Graf <tgraf@suug.ch>
+ */
+
+#ifndef __NETLINK_CLI_EXP_H_
+#define __NETLINK_CLI_EXP_H_
+
+#include <netlink/netfilter/exp.h>
+#include <linux/netfilter/nf_conntrack_common.h>
+
+extern struct nfnl_exp *nl_cli_exp_alloc(void);
+extern struct nl_cache *nl_cli_exp_alloc_cache(struct nl_sock *);
+
+extern void nl_cli_exp_parse_family(struct nfnl_exp *, char *);
+extern void nl_cli_exp_parse_timeout(struct nfnl_exp *, char *);
+extern void nl_cli_exp_parse_id(struct nfnl_exp *, char *);
+extern void nl_cli_exp_parse_helper_name(struct nfnl_exp *, char *);
+extern void nl_cli_exp_parse_zone(struct nfnl_exp *, char *);
+extern void nl_cli_exp_parse_flags(struct nfnl_exp *, char *);
+extern void nl_cli_exp_parse_class(struct nfnl_exp *, char *);
+extern void nl_cli_exp_parse_nat_dir(struct nfnl_exp *, char *);
+extern void nl_cli_exp_parse_fn(struct nfnl_exp *, char *);
+
+extern void nl_cli_exp_parse_src(struct nfnl_exp *, int, char *);
+extern void nl_cli_exp_parse_dst(struct nfnl_exp *, int, char *);
+extern void nl_cli_exp_parse_l4protonum(struct nfnl_exp *, int, char *);
+extern void nl_cli_exp_parse_src_port(struct nfnl_exp *, int, char *);
+extern void nl_cli_exp_parse_dst_port(struct nfnl_exp *, int, char *);
+extern void nl_cli_exp_parse_icmp_id(struct nfnl_exp *, int, char *);
+extern void nl_cli_exp_parse_icmp_type(struct nfnl_exp *, int, char *);
+extern void nl_cli_exp_parse_icmp_code(struct nfnl_exp *, int, char *);
+
+
+#endif
diff --git a/include/netlink/netfilter/exp.h b/include/netlink/netfilter/exp.h
new file mode 100644
index 0000000..4e95014
--- /dev/null
+++ b/include/netlink/netfilter/exp.h
@@ -0,0 +1,129 @@
+/*
+ * netlink/netfilter/exp.h   Conntrack Expectation
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation version 2.1
+ *  of the License.
+ *
+ * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
+ * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
+ * Copyright (c) 2007 Secure Computing Corporation
+ * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
+ */
+
+#ifndef NETLINK_EXP_H_
+#define NETLINK_EXP_H_
+
+#include <netlink/netlink.h>
+#include <netlink/addr.h>
+#include <netlink/cache.h>
+#include <netlink/msg.h>
+
+#include <linux/version.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct nfnl_exp;
+
+enum nfnl_exp_tuples {
+	NFNL_EXP_TUPLE_EXPECT,
+	NFNL_EXP_TUPLE_MASTER,
+	NFNL_EXP_TUPLE_MASK,
+	NFNL_EXP_TUPLE_NAT,
+	NFNL_EXP_TUPLE_MAX
+};
+
+extern struct nl_object_ops exp_obj_ops;
+
+extern struct nfnl_exp * nfnl_exp_alloc(void);
+extern int  nfnl_exp_alloc_cache(struct nl_sock *, struct nl_cache **);
+
+extern int  nfnlmsg_exp_group(struct nlmsghdr *);
+extern int  nfnlmsg_exp_parse(struct nlmsghdr *, struct nfnl_exp **);
+
+extern void nfnl_exp_get(struct nfnl_exp *);
+extern void nfnl_exp_put(struct nfnl_exp *);
+
+extern int  nfnl_exp_dump_request(struct nl_sock *);
+
+extern int  nfnl_exp_build_add_request(const struct nfnl_exp *, int,
+						struct nl_msg **);
+extern int  nfnl_exp_add(struct nl_sock *, const struct nfnl_exp *, int);
+
+extern int  nfnl_exp_build_delete_request(const struct nfnl_exp *, int,
+						struct nl_msg **);
+extern int  nfnl_exp_del(struct nl_sock *, const struct nfnl_exp *, int);
+
+extern int  nfnl_exp_build_query_request(const struct nfnl_exp *, int,
+						struct nl_msg **);
+extern int  nfnl_exp_query(struct nl_sock *, const struct nfnl_exp *, int);
+
+extern void nfnl_exp_set_family(struct nfnl_exp *, uint8_t);
+extern uint8_t  nfnl_exp_get_family(const struct nfnl_exp *);
+
+extern void nfnl_exp_set_timeout(struct nfnl_exp *, uint32_t);
+extern int  nfnl_exp_test_timeout(const struct nfnl_exp *);
+extern uint32_t nfnl_exp_get_timeout(const struct nfnl_exp *);
+
+extern void nfnl_exp_set_id(struct nfnl_exp *, uint32_t);
+extern int  nfnl_exp_test_id(const struct nfnl_exp *);
+extern uint32_t nfnl_exp_get_id(const struct nfnl_exp *);
+
+extern int  nfnl_exp_set_helper_name(struct nfnl_exp *, void *);
+extern int  nfnl_exp_test_helper_name(const struct nfnl_exp *);
+extern const char * nfnl_exp_get_helper_name(const struct nfnl_exp *);
+
+extern void nfnl_exp_set_zone(struct nfnl_exp *, uint16_t);
+extern int  nfnl_exp_test_zone(const struct nfnl_exp *);
+extern uint16_t nfnl_exp_get_zone(const struct nfnl_exp *);
+
+extern void nfnl_exp_set_flags(struct nfnl_exp *, uint32_t);
+extern int  nfnl_exp_test_flags(const struct nfnl_exp *);
+extern uint32_t nfnl_exp_get_flags(const struct nfnl_exp *);
+
+extern void nfnl_exp_set_class(struct nfnl_exp *, uint32_t);
+extern int  nfnl_exp_test_class(const struct nfnl_exp *);
+extern uint32_t nfnl_exp_get_class(const struct nfnl_exp *);
+
+extern int  nfnl_exp_set_fn(struct nfnl_exp *, void *);
+extern int  nfnl_exp_test_fn(const struct nfnl_exp *);
+extern const char * nfnl_exp_get_fn(const struct nfnl_exp *);
+
+extern void nfnl_exp_set_nat_dir(struct nfnl_exp *, uint8_t);
+extern int  nfnl_exp_test_nat_dir(const struct nfnl_exp *);
+extern uint8_t nfnl_exp_get_nat_dir(const struct nfnl_exp *);
+
+// The int argument specifies which nfnl_exp_dir (expect, master, mask or nat)
+// Expectation objects only use orig, not reply
+
+extern int  nfnl_exp_set_src(struct nfnl_exp *, int, struct nl_addr *);
+extern int  nfnl_exp_test_src(const struct nfnl_exp *, int);
+extern struct nl_addr * nfnl_exp_get_src(const struct nfnl_exp *, int);
+
+extern int  nfnl_exp_set_dst(struct nfnl_exp *, int, struct nl_addr *);
+extern int  nfnl_exp_test_dst(const struct nfnl_exp *, int);
+extern struct nl_addr * nfnl_exp_get_dst(const struct nfnl_exp *, int);
+
+extern void  nfnl_exp_set_l4protonum(struct nfnl_exp *, int, uint8_t);
+extern int  nfnl_exp_test_l4protonum(const struct nfnl_exp *, int);
+extern uint8_t nfnl_exp_get_l4protonum(const struct nfnl_exp *, int);
+
+extern void nfnl_exp_set_ports(struct nfnl_exp *, int, uint16_t, uint16_t);
+extern int nfnl_exp_test_ports(const struct nfnl_exp *, int);
+extern uint16_t nfnl_exp_get_src_port(const struct nfnl_exp *, int);
+extern uint16_t nfnl_exp_get_dst_port(const struct nfnl_exp *, int);
+
+extern void nfnl_exp_set_icmp(struct nfnl_exp *, int, uint16_t, uint8_t, uint8_t);
+extern int nfnl_exp_test_icmp(const struct nfnl_exp *, int);
+extern uint16_t nfnl_exp_get_icmp_id(const struct nfnl_exp *, int);
+extern uint8_t  nfnl_exp_get_icmp_type(const struct nfnl_exp *, int);
+extern uint8_t  nfnl_exp_get_icmp_code(const struct nfnl_exp *, int);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 9e5efd8..e31e594 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -29,7 +29,8 @@ libnl_nf_3_la_SOURCES = \
 	netfilter/ct.c netfilter/ct_obj.c netfilter/log.c \
 	netfilter/log_msg.c netfilter/log_msg_obj.c netfilter/log_obj.c \
 	netfilter/netfilter.c netfilter/nfnl.c netfilter/queue.c \
-	netfilter/queue_msg.c netfilter/queue_msg_obj.c netfilter/queue_obj.c
+	netfilter/queue_msg.c netfilter/queue_msg_obj.c netfilter/queue_obj.c \
+	netfilter/exp.c netfilter/exp_obj.c
 
 CLEANFILES = \
 	route/pktloc_grammar.c route/pktloc_grammar.h \
diff --git a/lib/netfilter/exp.c b/lib/netfilter/exp.c
new file mode 100644
index 0000000..5ba2bcb
--- /dev/null
+++ b/lib/netfilter/exp.c
@@ -0,0 +1,617 @@
+/*
+ * lib/netfilter/exp.c	Conntrack Expectation
+ *
+ *	This library is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU Lesser General Public
+ *	License as published by the Free Software Foundation version 2.1
+ *	of the License.
+ *
+ * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
+ * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
+ * Copyright (c) 2007 Secure Computing Corporation
+ * Copyright (c= 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
+ */
+
+/**
+ * @ingroup nfnl
+ * @defgroup exp Expectation
+ * @brief
+ * @{
+ */
+
+#include <byteswap.h>
+#include <sys/types.h>
+#include <linux/netfilter/nfnetlink_conntrack.h>
+
+#include <netlink-local.h>
+#include <netlink/attr.h>
+#include <netlink/netfilter/nfnl.h>
+#include <netlink/netfilter/exp.h>
+
+static struct nl_cache_ops nfnl_exp_ops;
+
+static struct nla_policy exp_policy[CTA_EXPECT_MAX+1] = {
+	[CTA_EXPECT_MASTER]	= { .type = NLA_NESTED },
+	[CTA_EXPECT_TUPLE]	= { .type = NLA_NESTED },
+	[CTA_EXPECT_MASK]	= { .type = NLA_NESTED },
+	[CTA_EXPECT_TIMEOUT]	= { .type = NLA_U32 },
+	[CTA_EXPECT_ID]		= { .type = NLA_U32 },
+	[CTA_EXPECT_HELP_NAME]	= { .type = NLA_STRING },
+	[CTA_EXPECT_ZONE]	= { .type = NLA_U16 },
+	[CTA_EXPECT_FLAGS]	= { .type = NLA_U32 },    // Added in kernel 2.6.37
+	[CTA_EXPECT_CLASS]	= { .type = NLA_U32 },    // Added in kernel 3.5
+	[CTA_EXPECT_NAT]	= { .type = NLA_NESTED }, // Added in kernel 3.5
+	[CTA_EXPECT_FN]		= { .type = NLA_STRING }, // Added in kernel 3.5
+};
+
+static struct nla_policy exp_tuple_policy[CTA_TUPLE_MAX+1] = {
+	[CTA_TUPLE_IP]		= { .type = NLA_NESTED },
+	[CTA_TUPLE_PROTO]	= { .type = NLA_NESTED },
+};
+
+static struct nla_policy exp_ip_policy[CTA_IP_MAX+1] = {
+	[CTA_IP_V4_SRC]		= { .type = NLA_U32 },
+	[CTA_IP_V4_DST]		= { .type = NLA_U32 },
+	[CTA_IP_V6_SRC]		= { .minlen = 16 },
+	[CTA_IP_V6_DST]		= { .minlen = 16 },
+};
+
+static struct nla_policy exp_proto_policy[CTA_PROTO_MAX+1] = {
+	[CTA_PROTO_NUM]		= { .type = NLA_U8 },
+	[CTA_PROTO_SRC_PORT]	= { .type = NLA_U16 },
+	[CTA_PROTO_DST_PORT]	= { .type = NLA_U16 },
+	[CTA_PROTO_ICMP_ID]	= { .type = NLA_U16 },
+	[CTA_PROTO_ICMP_TYPE]	= { .type = NLA_U8 },
+	[CTA_PROTO_ICMP_CODE]	= { .type = NLA_U8 },
+	[CTA_PROTO_ICMPV6_ID]	= { .type = NLA_U16 },
+	[CTA_PROTO_ICMPV6_TYPE]	= { .type = NLA_U8 },
+	[CTA_PROTO_ICMPV6_CODE]	= { .type = NLA_U8 },
+};
+
+static struct nla_policy exp_nat_policy[CTA_EXPECT_NAT_MAX+1] = {
+	[CTA_EXPECT_NAT_DIR]	= { .type = NLA_U8 },
+	[CTA_EXPECT_NAT_TUPLE]	= { .type = NLA_NESTED },
+};
+
+static int exp_parse_ip(struct nfnl_exp *exp, int tuple, struct nlattr *attr)
+{
+	struct nlattr *tb[CTA_IP_MAX+1];
+	struct nl_addr *addr;
+	int err;
+
+	err = nla_parse_nested(tb, CTA_IP_MAX, attr, exp_ip_policy);
+	if (err < 0)
+		goto errout;
+
+	if (tb[CTA_IP_V4_SRC]) {
+		addr = nl_addr_alloc_attr(tb[CTA_IP_V4_SRC], AF_INET);
+		if (addr == NULL)
+			goto errout_enomem;
+		err = nfnl_exp_set_src(exp, tuple, addr);
+		nl_addr_put(addr);
+		if (err < 0)
+			goto errout;
+	}
+	if (tb[CTA_IP_V4_DST]) {
+		addr = nl_addr_alloc_attr(tb[CTA_IP_V4_DST], AF_INET);
+		if (addr == NULL)
+			goto errout_enomem;
+		err = nfnl_exp_set_dst(exp, tuple, addr);
+		nl_addr_put(addr);
+		if (err < 0)
+			goto errout;
+	}
+	if (tb[CTA_IP_V6_SRC]) {
+		addr = nl_addr_alloc_attr(tb[CTA_IP_V6_SRC], AF_INET6);
+		if (addr == NULL)
+			goto errout_enomem;
+		err = nfnl_exp_set_src(exp, tuple, addr);
+		nl_addr_put(addr);
+		if (err < 0)
+			goto errout;
+	}
+	if (tb[CTA_IP_V6_DST]) {
+		addr = nl_addr_alloc_attr(tb[CTA_IP_V6_DST], AF_INET6);
+		if (addr == NULL)
+			goto errout_enomem;
+		err = nfnl_exp_set_dst(exp, tuple, addr);
+		nl_addr_put(addr);
+		if (err < 0)
+			goto errout;
+	}
+
+	return 0;
+
+errout_enomem:
+	err = -NLE_NOMEM;
+errout:
+	return err;
+}
+
+static int exp_parse_proto(struct nfnl_exp *exp, int tuple, struct nlattr *attr)
+{
+	struct nlattr *tb[CTA_PROTO_MAX+1];
+	int err;
+	uint16_t srcport = 0, dstport = 0, icmpid = 0;
+	uint8_t icmptype = 0, icmpcode = 0;
+
+	err = nla_parse_nested(tb, CTA_PROTO_MAX, attr, exp_proto_policy);
+	if (err < 0)
+		return err;
+
+	if (tb[CTA_PROTO_NUM])
+		nfnl_exp_set_l4protonum(exp, tuple, nla_get_u8(tb[CTA_PROTO_NUM]));
+
+	if (tb[CTA_PROTO_SRC_PORT])
+		srcport = ntohs(nla_get_u16(tb[CTA_PROTO_SRC_PORT]));
+	if (tb[CTA_PROTO_DST_PORT])
+		dstport = ntohs(nla_get_u16(tb[CTA_PROTO_DST_PORT]));
+	if (tb[CTA_PROTO_SRC_PORT] || tb[CTA_PROTO_DST_PORT])
+		nfnl_exp_set_ports(exp, tuple, srcport, dstport);
+
+	if (tb[CTA_PROTO_ICMP_ID])
+		icmpid = ntohs(nla_get_u16(tb[CTA_PROTO_ICMP_ID]));
+	if (tb[CTA_PROTO_ICMP_TYPE])
+		icmptype = nla_get_u8(tb[CTA_PROTO_ICMP_TYPE]);
+	if (tb[CTA_PROTO_ICMP_CODE])
+		icmpcode = nla_get_u8(tb[CTA_PROTO_ICMP_CODE]);
+	if (tb[CTA_PROTO_ICMP_ID] || tb[CTA_PROTO_ICMP_TYPE] || tb[CTA_PROTO_ICMP_CODE])
+		nfnl_exp_set_icmp(exp, tuple, icmpid, icmptype, icmpcode);
+	return 0;
+}
+
+static int exp_parse_tuple(struct nfnl_exp *exp, int tuple, struct nlattr *attr)
+{
+	struct nlattr *tb[CTA_TUPLE_MAX+1];
+	int err;
+
+	err = nla_parse_nested(tb, CTA_TUPLE_MAX, attr, exp_tuple_policy);
+	if (err < 0)
+		return err;
+
+	if (tb[CTA_TUPLE_IP]) {
+		err = exp_parse_ip(exp, tuple, tb[CTA_TUPLE_IP]);
+		if (err < 0)
+			return err;
+	}
+
+	if (tb[CTA_TUPLE_PROTO]) {
+		err = exp_parse_proto(exp, tuple, tb[CTA_TUPLE_PROTO]);
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
+
+static int exp_parse_nat(struct nfnl_exp *exp, struct nlattr *attr)
+{
+	struct nlattr *tb[CTA_EXPECT_NAT_MAX+1];
+	int err;
+
+	err = nla_parse_nested(tb, CTA_EXPECT_NAT_MAX, attr, exp_nat_policy);
+	if (err < 0)
+		return err;
+
+	if (tb[CTA_EXPECT_NAT_DIR])
+		nfnl_exp_set_nat_dir(exp, nla_get_u8(tb[CTA_EXPECT_NAT_DIR]));
+
+	if (tb[CTA_EXPECT_NAT_TUPLE]) {
+		err = exp_parse_tuple(exp, NFNL_EXP_TUPLE_NAT, tb[CTA_EXPECT_NAT_TUPLE]);
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
+
+int nfnlmsg_exp_group(struct nlmsghdr *nlh)
+{
+	switch (nfnlmsg_subtype(nlh)) {
+	case IPCTNL_MSG_EXP_NEW:
+		if (nlh->nlmsg_flags & (NLM_F_CREATE|NLM_F_EXCL))
+			return NFNLGRP_CONNTRACK_EXP_NEW;
+		else
+			return NFNLGRP_CONNTRACK_EXP_UPDATE;
+	case IPCTNL_MSG_EXP_DELETE:
+		return NFNLGRP_CONNTRACK_EXP_DESTROY;
+	default:
+		return NFNLGRP_NONE;
+	}
+}
+
+int nfnlmsg_exp_parse(struct nlmsghdr *nlh, struct nfnl_exp **result)
+{
+	struct nfnl_exp *exp;
+	struct nlattr *tb[CTA_MAX+1];
+	int err;
+
+	exp = nfnl_exp_alloc();
+	if (!exp)
+		return -NLE_NOMEM;
+
+	exp->ce_msgtype = nlh->nlmsg_type;
+
+	err = nlmsg_parse(nlh, sizeof(struct nfgenmsg), tb, CTA_EXPECT_MAX,
+			  exp_policy);
+	if (err < 0)
+		goto errout;
+
+	nfnl_exp_set_family(exp, nfnlmsg_family(nlh));
+
+	if (tb[CTA_EXPECT_TUPLE]) {
+		err = exp_parse_tuple(exp, NFNL_EXP_TUPLE_EXPECT, tb[CTA_EXPECT_TUPLE]);
+		if (err < 0)
+			goto errout;
+	}
+	if (tb[CTA_EXPECT_MASTER]) {
+		err = exp_parse_tuple(exp, NFNL_EXP_TUPLE_MASTER, tb[CTA_EXPECT_MASTER]);
+		if (err < 0)
+			goto errout;
+	}
+	if (tb[CTA_EXPECT_MASK]) {
+		err = exp_parse_tuple(exp, NFNL_EXP_TUPLE_MASK, tb[CTA_EXPECT_MASK]);
+		if (err < 0)
+			goto errout;
+	}
+
+	if (tb[CTA_EXPECT_NAT]) {
+		err = exp_parse_nat(exp, tb[CTA_EXPECT_MASK]);
+		if (err < 0)
+			goto errout;
+	}
+
+	if (tb[CTA_EXPECT_CLASS])
+		nfnl_exp_set_class(exp, ntohl(nla_get_u32(tb[CTA_EXPECT_CLASS])));
+
+	if (tb[CTA_EXPECT_FN])
+		nfnl_exp_set_fn(exp, nla_data(tb[CTA_EXPECT_FN]));
+
+	if (tb[CTA_EXPECT_TIMEOUT])
+		nfnl_exp_set_timeout(exp, ntohl(nla_get_u32(tb[CTA_EXPECT_TIMEOUT])));
+
+	if (tb[CTA_EXPECT_ID])
+		nfnl_exp_set_id(exp, ntohl(nla_get_u32(tb[CTA_EXPECT_ID])));
+
+	if (tb[CTA_EXPECT_HELP_NAME])
+		nfnl_exp_set_helper_name(exp, nla_data(tb[CTA_EXPECT_HELP_NAME]));
+
+	if (tb[CTA_EXPECT_ZONE])
+		nfnl_exp_set_zone(exp, ntohs(nla_get_u16(tb[CTA_EXPECT_ZONE])));
+
+	if (tb[CTA_EXPECT_FLAGS])
+		nfnl_exp_set_flags(exp, ntohl(nla_get_u32(tb[CTA_EXPECT_FLAGS])));
+
+	*result = exp;
+	return 0;
+
+errout:
+	nfnl_exp_put(exp);
+	return err;
+}
+
+static int exp_msg_parser(struct nl_cache_ops *ops, struct sockaddr_nl *who,
+			 struct nlmsghdr *nlh, struct nl_parser_param *pp)
+{
+	struct nfnl_exp *exp;
+	int err;
+
+	if ((err = nfnlmsg_exp_parse(nlh, &exp)) < 0)
+		goto errout;
+
+	err = pp->pp_cb((struct nl_object *) exp, pp);
+errout:
+	nfnl_exp_put(exp);
+	return err;
+}
+
+int nfnl_exp_dump_request(struct nl_sock *sk)
+{
+	return nfnl_send_simple(sk, NFNL_SUBSYS_CTNETLINK_EXP, IPCTNL_MSG_EXP_GET,
+				NLM_F_DUMP, AF_UNSPEC, 0);
+}
+
+static int exp_request_update(struct nl_cache *cache, struct nl_sock *sk)
+{
+	return nfnl_exp_dump_request(sk);
+}
+
+static int exp_get_tuple_attr(int tuple)
+{
+	int attr = 0;
+
+	switch (tuple) {
+		case CTA_EXPECT_MASTER:
+			attr = NFNL_EXP_TUPLE_MASTER;
+			break;
+		case CTA_EXPECT_MASK:
+			attr = NFNL_EXP_TUPLE_MASK;
+			break;
+		case CTA_EXPECT_NAT:
+			attr = NFNL_EXP_TUPLE_NAT;
+			break;
+		case CTA_EXPECT_TUPLE:
+		default :
+			attr = NFNL_EXP_TUPLE_EXPECT;
+			break;
+	}
+
+	return attr;
+}
+
+static int nfnl_exp_build_tuple(struct nl_msg *msg, const struct nfnl_exp *exp,
+			       int cta)
+{
+	struct nlattr *tuple, *ip, *proto;
+	struct nl_addr *addr;
+	int family;
+
+	family = nfnl_exp_get_family(exp);
+
+	int type = exp_get_tuple_attr(cta);
+
+	tuple = nla_nest_start(msg, cta);
+	if (!tuple)
+		goto nla_put_failure;
+
+	ip = nla_nest_start(msg, CTA_TUPLE_IP);
+	if (!ip)
+		goto nla_put_failure;
+
+	addr = nfnl_exp_get_src(exp, type);
+	if (addr)
+		NLA_PUT_ADDR(msg,
+			     family == AF_INET ? CTA_IP_V4_SRC : CTA_IP_V6_SRC,
+			     addr);
+
+	addr = nfnl_exp_get_dst(exp, type);
+	if (addr)
+		NLA_PUT_ADDR(msg,
+			     family == AF_INET ? CTA_IP_V4_DST : CTA_IP_V6_DST,
+			     addr);
+
+	nla_nest_end(msg, ip);
+
+	proto = nla_nest_start(msg, CTA_TUPLE_PROTO);
+	if (!proto)
+		goto nla_put_failure;
+
+	if (nfnl_exp_test_l4protonum(exp, type))
+		NLA_PUT_U8(msg, CTA_PROTO_NUM, nfnl_exp_get_l4protonum(exp, type));
+
+	if (nfnl_exp_test_ports(exp, type)) {
+		NLA_PUT_U16(msg, CTA_PROTO_SRC_PORT,
+			htons(nfnl_exp_get_src_port(exp, type)));
+
+		NLA_PUT_U16(msg, CTA_PROTO_DST_PORT,
+			htons(nfnl_exp_get_dst_port(exp, type)));
+	}
+
+	if (nfnl_exp_test_icmp(exp, type)) {
+		NLA_PUT_U16(msg, CTA_PROTO_ICMP_ID,
+			htons(nfnl_exp_get_icmp_id(exp, type)));
+
+		NLA_PUT_U8(msg, CTA_PROTO_ICMP_TYPE,
+			    nfnl_exp_get_icmp_type(exp, type));
+
+		NLA_PUT_U8(msg, CTA_PROTO_ICMP_CODE,
+			    nfnl_exp_get_icmp_code(exp, type));
+	}
+
+	nla_nest_end(msg, proto);
+
+	nla_nest_end(msg, tuple);
+	return 0;
+
+nla_put_failure:
+	return -NLE_MSGSIZE;
+}
+
+static int nfnl_exp_build_nat(struct nl_msg *msg, const struct nfnl_exp *exp)
+{
+	struct nlattr *nat;
+	int err;
+
+	nat = nla_nest_start(msg, CTA_EXPECT_NAT);
+
+	if (nfnl_exp_test_nat_dir(exp)) {
+		NLA_PUT_U8(msg, CTA_EXPECT_NAT_DIR,
+				nfnl_exp_get_nat_dir(exp));
+	}
+
+	if ((err = nfnl_exp_build_tuple(msg, exp, CTA_EXPECT_NAT_TUPLE)) < 0)
+		goto nla_put_failure;
+
+	nla_nest_end(msg, nat);
+	return 0;
+
+nla_put_failure:
+	return -NLE_MSGSIZE;
+}
+
+static int nfnl_exp_build_message(const struct nfnl_exp *exp, int cmd, int flags,
+				 struct nl_msg **result)
+{
+	struct nl_msg *msg;
+	int err;
+
+	msg = nfnlmsg_alloc_simple(NFNL_SUBSYS_CTNETLINK_EXP, cmd, flags,
+				   nfnl_exp_get_family(exp), 0);
+	if (msg == NULL)
+		return -NLE_NOMEM;
+
+	if ((err = nfnl_exp_build_tuple(msg, exp, CTA_EXPECT_TUPLE)) < 0)
+		goto err_out;
+
+	if ((err = nfnl_exp_build_tuple(msg, exp, CTA_EXPECT_MASTER)) < 0)
+		goto err_out;
+
+	if ((err = nfnl_exp_build_tuple(msg, exp, CTA_EXPECT_MASK)) < 0)
+		goto err_out;
+
+	if (nfnl_exp_test_src(exp, NFNL_EXP_TUPLE_NAT)) {
+		if ((err = nfnl_exp_build_nat(msg, exp)) < 0)
+			goto err_out;
+	}
+
+	if (nfnl_exp_test_class(exp))
+		NLA_PUT_U32(msg, CTA_EXPECT_CLASS, htonl(nfnl_exp_get_class(exp)));
+
+	if (nfnl_exp_test_fn(exp))
+		NLA_PUT_STRING(msg, CTA_EXPECT_FN, nfnl_exp_get_fn(exp));
+
+	if (nfnl_exp_test_id(exp))
+		NLA_PUT_U32(msg, CTA_EXPECT_ID, htonl(nfnl_exp_get_id(exp)));
+
+	if (nfnl_exp_test_timeout(exp))
+		NLA_PUT_U32(msg, CTA_EXPECT_TIMEOUT, htonl(nfnl_exp_get_timeout(exp)));
+
+	if (nfnl_exp_test_helper_name(exp))
+		NLA_PUT_STRING(msg, CTA_EXPECT_HELP_NAME, nfnl_exp_get_helper_name(exp));
+
+	if (nfnl_exp_test_zone(exp))
+		NLA_PUT_U16(msg, CTA_EXPECT_ZONE, htons(nfnl_exp_get_zone(exp)));
+
+	if (nfnl_exp_test_flags(exp))
+		NLA_PUT_U32(msg, CTA_EXPECT_FLAGS, htonl(nfnl_exp_get_flags(exp)));
+
+	*result = msg;
+	return 0;
+
+nla_put_failure:
+err_out:
+	nlmsg_free(msg);
+	return err;
+}
+
+int nfnl_exp_build_add_request(const struct nfnl_exp *exp, int flags,
+			      struct nl_msg **result)
+{
+	return nfnl_exp_build_message(exp, IPCTNL_MSG_EXP_NEW, flags, result);
+}
+
+int nfnl_exp_add(struct nl_sock *sk, const struct nfnl_exp *exp, int flags)
+{
+	struct nl_msg *msg;
+	int err;
+
+	if ((err = nfnl_exp_build_add_request(exp, flags, &msg)) < 0)
+		return err;
+
+	err = nl_send_auto_complete(sk, msg);
+	nlmsg_free(msg);
+	if (err < 0)
+		return err;
+
+	return wait_for_ack(sk);
+}
+
+int nfnl_exp_build_delete_request(const struct nfnl_exp *exp, int flags,
+				 struct nl_msg **result)
+{
+	return nfnl_exp_build_message(exp, IPCTNL_MSG_EXP_DELETE, flags, result);
+}
+
+int nfnl_exp_del(struct nl_sock *sk, const struct nfnl_exp *exp, int flags)
+{
+	struct nl_msg *msg;
+	int err;
+
+	if ((err = nfnl_exp_build_delete_request(exp, flags, &msg)) < 0)
+		return err;
+
+	err = nl_send_auto_complete(sk, msg);
+	nlmsg_free(msg);
+	if (err < 0)
+		return err;
+
+	return wait_for_ack(sk);
+}
+
+int nfnl_exp_build_query_request(const struct nfnl_exp *exp, int flags,
+				struct nl_msg **result)
+{
+	return nfnl_exp_build_message(exp, IPCTNL_MSG_EXP_GET, flags, result);
+}
+
+int nfnl_exp_query(struct nl_sock *sk, const struct nfnl_exp *exp, int flags)
+{
+	struct nl_msg *msg;
+	int err;
+
+	if ((err = nfnl_exp_build_query_request(exp, flags, &msg)) < 0)
+		return err;
+
+	err = nl_send_auto_complete(sk, msg);
+	nlmsg_free(msg);
+	if (err < 0)
+		return err;
+
+	return wait_for_ack(sk);
+}
+
+/**
+ * @name Cache Management
+ * @{
+ */
+
+/**
+ * Build a expectation cache holding all expectations currently in the kernel
+ * @arg sk		Netlink socket.
+ * @arg result		Pointer to store resulting cache.
+ *
+ * Allocates a new cache, initializes it properly and updates it to
+ * contain all expectations currently in the kernel.
+ *
+ * @return 0 on success or a negative error code.
+ */
+int nfnl_exp_alloc_cache(struct nl_sock *sk, struct nl_cache **result)
+{
+	return nl_cache_alloc_and_fill(&nfnl_exp_ops, sk, result);
+}
+
+/** @} */
+
+/**
+ * @name Expectation Addition
+ * @{
+ */
+
+/** @} */
+
+static struct nl_af_group exp_groups[] = {
+	{ AF_UNSPEC, NFNLGRP_CONNTRACK_EXP_NEW },
+	{ AF_UNSPEC, NFNLGRP_CONNTRACK_EXP_UPDATE },
+	{ AF_UNSPEC, NFNLGRP_CONNTRACK_EXP_DESTROY },
+	{ END_OF_GROUP_LIST },
+};
+
+#define NFNLMSG_EXP_TYPE(type) NFNLMSG_TYPE(NFNL_SUBSYS_CTNETLINK_EXP, (type))
+static struct nl_cache_ops nfnl_exp_ops = {
+	.co_name		    = "netfilter/exp",
+	.co_hdrsize		    = NFNL_HDRLEN,
+	.co_msgtypes		= {
+		{ NFNLMSG_EXP_TYPE(IPCTNL_MSG_EXP_NEW), NL_ACT_NEW, "new" },
+		{ NFNLMSG_EXP_TYPE(IPCTNL_MSG_EXP_GET), NL_ACT_GET, "get" },
+		{ NFNLMSG_EXP_TYPE(IPCTNL_MSG_EXP_DELETE), NL_ACT_DEL, "del" },
+		END_OF_MSGTYPES_LIST,
+	},
+	.co_protocol		= NETLINK_NETFILTER,
+	.co_groups		= exp_groups,
+	.co_request_update	= exp_request_update,
+	.co_msg_parser		= exp_msg_parser,
+	.co_obj_ops		= &exp_obj_ops,
+};
+
+static void __init exp_init(void)
+{
+	nl_cache_mngt_register(&nfnl_exp_ops);
+}
+
+static void __exit exp_exit(void)
+{
+	nl_cache_mngt_unregister(&nfnl_exp_ops);
+}
+
+/** @} */
diff --git a/lib/netfilter/exp_obj.c b/lib/netfilter/exp_obj.c
new file mode 100644
index 0000000..182df23
--- /dev/null
+++ b/lib/netfilter/exp_obj.c
@@ -0,0 +1,888 @@
+/*
+ * lib/netfilter/exp_obj.c	Conntrack Expectation Object
+ *
+ *	This library is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU Lesser General Public
+ *	License as published by the Free Software Foundation version 2.1
+ *	of the License.
+ *
+ * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
+ * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
+ * Copyright (c) 2007 Secure Computing Corporation
+ * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
+ */
+
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <linux/netfilter/nfnetlink_conntrack.h>
+#include <linux/netfilter/nf_conntrack_common.h>
+#include <linux/netfilter/nf_conntrack_tcp.h>
+
+#include <netlink-local.h>
+#include <netlink/netfilter/nfnl.h>
+#include <netlink/netfilter/exp.h>
+
+// The 32-bit attribute mask in the common object header isn't
+// big enough to handle all attributes of an expectation.  So
+// we'll for sure specify optional attributes + parent attributes
+// that are required for valid object comparison.  Comparison of
+// these parent attributes will include nested attributes.
+
+/** @cond SKIP */
+#define EXP_ATTR_FAMILY			(1UL << 0) // 8-bit
+#define EXP_ATTR_TIMEOUT		(1UL << 1) // 32-bit
+#define EXP_ATTR_ID			(1UL << 2) // 32-bit
+#define EXP_ATTR_HELPER_NAME		(1UL << 3) // string
+#define EXP_ATTR_ZONE			(1UL << 4) // 16-bit
+#define EXP_ATTR_FLAGS			(1UL << 5) // 32-bit
+#define EXP_ATTR_CLASS			(1UL << 6) // 32-bit
+#define EXP_ATTR_FN			(1UL << 7) // String
+// Tuples
+#define EXP_ATTR_EXPECT_IP_SRC		(1UL << 8)
+#define EXP_ATTR_EXPECT_IP_DST		(1UL << 9)
+#define EXP_ATTR_EXPECT_L4PROTO_NUM	(1UL << 10)
+#define EXP_ATTR_EXPECT_L4PROTO_PORTS	(1UL << 11)
+#define EXP_ATTR_EXPECT_L4PROTO_ICMP	(1UL << 12)
+#define EXP_ATTR_MASTER_IP_SRC		(1UL << 13)
+#define EXP_ATTR_MASTER_IP_DST		(1UL << 14)
+#define EXP_ATTR_MASTER_L4PROTO_NUM	(1UL << 15)
+#define EXP_ATTR_MASTER_L4PROTO_PORTS	(1UL << 16)
+#define EXP_ATTR_MASTER_L4PROTO_ICMP	(1UL << 17)
+#define EXP_ATTR_MASK_IP_SRC		(1UL << 18)
+#define EXP_ATTR_MASK_IP_DST		(1UL << 19)
+#define EXP_ATTR_MASK_L4PROTO_NUM	(1UL << 20)
+#define EXP_ATTR_MASK_L4PROTO_PORTS	(1UL << 21)
+#define EXP_ATTR_MASK_L4PROTO_ICMP	(1UL << 22)
+#define EXP_ATTR_NAT_IP_SRC		(1UL << 23)
+#define EXP_ATTR_NAT_IP_DST		(1UL << 24)
+#define EXP_ATTR_NAT_L4PROTO_NUM	(1UL << 25)
+#define EXP_ATTR_NAT_L4PROTO_PORTS	(1UL << 26)
+#define EXP_ATTR_NAT_L4PROTO_ICMP	(1UL << 27)
+#define EXP_ATTR_NAT_DIR		(1UL << 28)
+/** @endcond */
+
+static void exp_free_data(struct nl_object *c)
+{
+	struct nfnl_exp *exp = (struct nfnl_exp *) c;
+
+	if (exp == NULL)
+		return;
+
+	nl_addr_put(exp->exp_expect.src);
+	nl_addr_put(exp->exp_expect.dst);
+	nl_addr_put(exp->exp_master.src);
+	nl_addr_put(exp->exp_master.dst);
+	nl_addr_put(exp->exp_mask.src);
+	nl_addr_put(exp->exp_mask.dst);
+	nl_addr_put(exp->exp_nat.src);
+	nl_addr_put(exp->exp_nat.dst);
+
+	free(exp->exp_fn);
+	free(exp->exp_helper_name);
+}
+
+static int exp_clone(struct nl_object *_dst, struct nl_object *_src)
+{
+	struct nfnl_exp *dst = (struct nfnl_exp *) _dst;
+	struct nfnl_exp *src = (struct nfnl_exp *) _src;
+	struct nl_addr *addr;
+
+	// Expectation
+	if (src->exp_expect.src) {
+		addr = nl_addr_clone(src->exp_expect.src);
+		if (!addr)
+			return -NLE_NOMEM;
+		dst->exp_expect.src = addr;
+	}
+
+	if (src->exp_expect.dst) {
+		addr = nl_addr_clone(src->exp_expect.dst);
+		if (!addr)
+			return -NLE_NOMEM;
+		dst->exp_expect.dst = addr;
+	}
+
+	// Master CT
+	if (src->exp_master.src) {
+		addr = nl_addr_clone(src->exp_master.src);
+		if (!addr)
+			return -NLE_NOMEM;
+		dst->exp_master.src = addr;
+	}
+
+	if (src->exp_master.dst) {
+		addr = nl_addr_clone(src->exp_master.dst);
+		if (!addr)
+			return -NLE_NOMEM;
+		dst->exp_master.dst = addr;
+	}
+
+	// Mask
+	if (src->exp_mask.src) {
+		addr = nl_addr_clone(src->exp_mask.src);
+		if (!addr)
+			return -NLE_NOMEM;
+		dst->exp_mask.src = addr;
+	}
+
+	if (src->exp_mask.dst) {
+		addr = nl_addr_clone(src->exp_mask.dst);
+		if (!addr)
+			return -NLE_NOMEM;
+		dst->exp_mask.dst = addr;
+	}
+
+    // NAT
+	if (src->exp_nat.src) {
+		addr = nl_addr_clone(src->exp_nat.src);
+		if (!addr)
+			return -NLE_NOMEM;
+		dst->exp_nat.src = addr;
+	}
+
+	if (src->exp_nat.dst) {
+		addr = nl_addr_clone(src->exp_nat.dst);
+		if (!addr)
+			return -NLE_NOMEM;
+		dst->exp_nat.dst = addr;
+	}
+
+	if (src->exp_fn)
+		dst->exp_fn = strdup(src->exp_fn);
+
+	if (src->exp_helper_name)
+		dst->exp_helper_name = strdup(src->exp_helper_name);
+
+	return 0;
+}
+
+static void dump_addr(struct nl_dump_params *p, struct nl_addr *addr, int port)
+{
+	char buf[64];
+
+	if (addr)
+		nl_dump(p, "%s", nl_addr2str(addr, buf, sizeof(buf)));
+
+	if (port)
+		nl_dump(p, ":%u ", port);
+	else if (addr)
+		nl_dump(p, " ");
+}
+
+static void dump_icmp(struct nl_dump_params *p, struct nfnl_exp *exp, int tuple)
+{
+	if (nfnl_exp_test_icmp(exp, tuple)) {
+
+		nl_dump(p, "icmp type %d ", nfnl_exp_get_icmp_type(exp, tuple));
+
+		nl_dump(p, "code %d ", nfnl_exp_get_icmp_code(exp, tuple));
+
+		nl_dump(p, "id %d ", nfnl_exp_get_icmp_id(exp, tuple));
+	}
+}
+
+static void exp_dump_tuples(struct nfnl_exp *exp, struct nl_dump_params *p)
+{
+	struct nl_addr *tuple_src, *tuple_dst;
+	int tuple_sport, tuple_dport;
+	int i = 0;
+	char buf[64];
+
+	for (i = NFNL_EXP_TUPLE_EXPECT; i < NFNL_EXP_TUPLE_MAX; i++) {
+		tuple_src = NULL;
+		tuple_dst = NULL;
+		tuple_sport = 0;
+		tuple_dport = 0;
+
+		// Test needed for NAT case
+		if (nfnl_exp_test_src(exp, i))
+			tuple_src = nfnl_exp_get_src(exp, i);
+		if (nfnl_exp_test_dst(exp, i))
+			tuple_dst = nfnl_exp_get_dst(exp, i);
+
+        // Don't have tests for individual ports/types/codes/ids,
+		if (nfnl_exp_test_l4protonum(exp, i)) {
+			nl_dump(p, "%s ",
+				nl_ip_proto2str(nfnl_exp_get_l4protonum(exp, i), buf, sizeof(buf)));
+		}
+
+		if (nfnl_exp_test_ports(exp, i)) {
+			tuple_sport = nfnl_exp_get_src_port(exp, i);
+			tuple_dport = nfnl_exp_get_dst_port(exp, i);
+		}
+
+		dump_addr(p, tuple_src, tuple_sport);
+		dump_addr(p, tuple_dst, tuple_dport);
+		dump_icmp(p, exp, 0);
+	}
+
+	if (nfnl_exp_test_nat_dir(exp))
+		nl_dump(p, "nat dir %s ", exp->exp_nat_dir);
+
+}
+
+/* FIXME Compatible with /proc/net/nf_conntrack */
+static void exp_dump_line(struct nl_object *a, struct nl_dump_params *p)
+{
+	struct nfnl_exp *exp = (struct nfnl_exp *) a;
+
+	nl_new_line(p);
+
+	exp_dump_tuples(exp, p);
+
+	nl_dump(p, "\n");
+}
+
+static void exp_dump_details(struct nl_object *a, struct nl_dump_params *p)
+{
+	struct nfnl_exp *exp = (struct nfnl_exp *) a;
+	char buf[64];
+	int fp = 0;
+
+	exp_dump_line(a, p);
+
+	nl_dump(p, "    id 0x%x ", exp->exp_id);
+	nl_dump_line(p, "family %s ",
+		nl_af2str(exp->exp_family, buf, sizeof(buf)));
+
+	if (nfnl_exp_test_timeout(exp)) {
+		uint64_t timeout_ms = nfnl_exp_get_timeout(exp) * 1000UL;
+		nl_dump(p, "timeout %s ",
+			nl_msec2str(timeout_ms, buf, sizeof(buf)));
+	}
+
+	if (nfnl_exp_test_helper_name(exp))
+		nl_dump(p, "helper %s ", exp->exp_helper_name);
+
+	if (nfnl_exp_test_fn(exp))
+		nl_dump(p, "fn %s ", exp->exp_fn);
+
+	if (nfnl_exp_test_class(exp))
+		nl_dump(p, "class %u ", nfnl_exp_get_class(exp));
+
+	if (nfnl_exp_test_zone(exp))
+		nl_dump(p, "zone %u ", nfnl_exp_get_zone(exp));
+
+	if (nfnl_exp_test_flags(exp))
+		nl_dump(p, "<");
+#define PRINT_FLAG(str) \
+	{ nl_dump(p, "%s%s", fp++ ? "," : "", (str)); }
+
+	if (exp->exp_flags & NF_CT_EXPECT_PERMANENT)
+		PRINT_FLAG("PERMANENT");
+	if (exp->exp_flags & NF_CT_EXPECT_INACTIVE)
+		PRINT_FLAG("INACTIVE");
+	if (exp->exp_flags & NF_CT_EXPECT_USERSPACE)
+		PRINT_FLAG("USERSPACE");
+#undef PRINT_FLAG
+
+	if (nfnl_exp_test_flags(exp))
+		nl_dump(p, ">");
+
+	nl_dump(p, "\n");
+}
+
+static int exp_cmp_l4proto_ports (union nfnl_exp_protodata *a, union nfnl_exp_protodata *b) {
+	// Must return 0 for match, 1 for mismatch
+	int d = 0;
+	d = ( (a->port.src != b->port.src) ||
+		  (a->port.dst != b->port.dst) );
+
+	return d;
+}
+
+static int exp_cmp_l4proto_icmp (union nfnl_exp_protodata *a, union nfnl_exp_protodata *b) {
+    // Must return 0 for match, 1 for mismatch
+	int d = 0;
+	d = ( (a->icmp.code != b->icmp.code) ||
+		  (a->icmp.type != b->icmp.type) ||
+		  (a->icmp.id != b->icmp.id) );
+
+	return d;
+}
+
+static int exp_compare(struct nl_object *_a, struct nl_object *_b,
+							uint32_t attrs, int flags)
+{
+	struct nfnl_exp *a = (struct nfnl_exp *) _a;
+	struct nfnl_exp *b = (struct nfnl_exp *) _b;
+	int diff = 0;
+
+#define EXP_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, EXP_ATTR_##ATTR, a, b, EXPR)
+#define EXP_DIFF_VAL(ATTR, FIELD) EXP_DIFF(ATTR, a->FIELD != b->FIELD)
+#define EXP_DIFF_STRING(ATTR, FIELD) EXP_DIFF(ATTR, (strcmp(a->FIELD, b->FIELD) != 0))
+#define EXP_DIFF_ADDR(ATTR, FIELD) \
+		((flags & LOOSE_COMPARISON) \
+		? EXP_DIFF(ATTR, nl_addr_cmp_prefix(a->FIELD, b->FIELD)) \
+		: EXP_DIFF(ATTR, nl_addr_cmp(a->FIELD, b->FIELD)))
+#define EXP_DIFF_L4PROTO_PORTS(ATTR, FIELD) \
+		EXP_DIFF(ATTR, exp_cmp_l4proto_ports(&(a->FIELD), &(b->FIELD)))
+#define EXP_DIFF_L4PROTO_ICMP(ATTR, FIELD) \
+		EXP_DIFF(ATTR, exp_cmp_l4proto_icmp(&(a->FIELD), &(b->FIELD)))
+
+		diff |= EXP_DIFF_VAL(FAMILY,			exp_family);
+		diff |= EXP_DIFF_VAL(TIMEOUT,			exp_timeout);
+		diff |= EXP_DIFF_VAL(ID,			exp_id);
+		diff |= EXP_DIFF_VAL(ZONE,			exp_zone);
+		diff |= EXP_DIFF_VAL(CLASS,			exp_class);
+		diff |= EXP_DIFF_VAL(FLAGS,			exp_flags);
+		diff |= EXP_DIFF_VAL(NAT_DIR,			exp_nat_dir);
+
+		diff |= EXP_DIFF_STRING(FN,			exp_fn);
+		diff |= EXP_DIFF_STRING(HELPER_NAME,		exp_helper_name);
+
+		diff |= EXP_DIFF_ADDR(EXPECT_IP_SRC,			exp_expect.src);
+		diff |= EXP_DIFF_ADDR(EXPECT_IP_DST,			exp_expect.dst);
+		diff |= EXP_DIFF_VAL(EXPECT_L4PROTO_NUM,		exp_expect.proto.l4protonum);
+		diff |= EXP_DIFF_L4PROTO_PORTS(EXPECT_L4PROTO_PORTS,	exp_expect.proto.l4protodata);
+		diff |= EXP_DIFF_L4PROTO_ICMP(EXPECT_L4PROTO_ICMP,	exp_expect.proto.l4protodata);
+
+		diff |= EXP_DIFF_ADDR(MASTER_IP_SRC,			exp_master.src);
+		diff |= EXP_DIFF_ADDR(MASTER_IP_DST,			exp_master.dst);
+		diff |= EXP_DIFF_VAL(MASTER_L4PROTO_NUM,		exp_master.proto.l4protonum);
+		diff |= EXP_DIFF_L4PROTO_PORTS(MASTER_L4PROTO_PORTS,	exp_master.proto.l4protodata);
+		diff |= EXP_DIFF_L4PROTO_ICMP(MASTER_L4PROTO_ICMP,	exp_master.proto.l4protodata);
+
+		diff |= EXP_DIFF_ADDR(MASK_IP_SRC,			exp_mask.src);
+		diff |= EXP_DIFF_ADDR(MASK_IP_DST,			exp_mask.dst);
+		diff |= EXP_DIFF_VAL(MASK_L4PROTO_NUM,			exp_mask.proto.l4protonum);
+		diff |= EXP_DIFF_L4PROTO_PORTS(MASK_L4PROTO_PORTS,	exp_mask.proto.l4protodata);
+		diff |= EXP_DIFF_L4PROTO_ICMP(MASK_L4PROTO_ICMP,	exp_mask.proto.l4protodata);
+
+		diff |= EXP_DIFF_ADDR(NAT_IP_SRC,			exp_nat.src);
+		diff |= EXP_DIFF_ADDR(NAT_IP_DST,			exp_nat.dst);
+		diff |= EXP_DIFF_VAL(NAT_L4PROTO_NUM,			exp_nat.proto.l4protonum);
+		diff |= EXP_DIFF_L4PROTO_PORTS(NAT_L4PROTO_PORTS,	exp_nat.proto.l4protodata);
+		diff |= EXP_DIFF_L4PROTO_ICMP(NAT_L4PROTO_ICMP,		exp_nat.proto.l4protodata);
+
+#undef EXP_DIFF
+#undef EXP_DIFF_VAL
+#undef EXP_DIFF_STRING
+#undef EXP_DIFF_ADDR
+#undef EXP_DIFF_L4PROTO_PORTS
+#undef EXP_DIFF_L4PROTO_ICMP
+
+	return diff;
+}
+
+// CLI arguments?
+static const struct trans_tbl exp_attrs[] = {
+	__ADD(EXP_ATTR_FAMILY,				family)
+	__ADD(EXP_ATTR_TIMEOUT,				timeout)
+	__ADD(EXP_ATTR_ID,				id)
+	__ADD(EXP_ATTR_HELPER_NAME,			helpername)
+	__ADD(EXP_ATTR_ZONE,				zone)
+	__ADD(EXP_ATTR_CLASS,				class)
+	__ADD(EXP_ATTR_FLAGS,				flags)
+	__ADD(EXP_ATTR_FN,				function)
+	__ADD(EXP_ATTR_EXPECT_IP_SRC,			expectipsrc)
+	__ADD(EXP_ATTR_EXPECT_IP_DST,			expectipdst)
+	__ADD(EXP_ATTR_EXPECT_L4PROTO_NUM,		expectprotonum)
+	__ADD(EXP_ATTR_EXPECT_L4PROTO_PORTS,		expectports)
+	__ADD(EXP_ATTR_EXPECT_L4PROTO_ICMP,		expecticmp)
+	__ADD(EXP_ATTR_MASTER_IP_SRC,			masteripsrc)
+	__ADD(EXP_ATTR_MASTER_IP_DST,			masteripdst)
+	__ADD(EXP_ATTR_MASTER_L4PROTO_NUM,		masterprotonum)
+	__ADD(EXP_ATTR_MASTER_L4PROTO_PORTS,		masterports)
+	__ADD(EXP_ATTR_MASTER_L4PROTO_ICMP,		mastericmp)
+	__ADD(EXP_ATTR_MASK_IP_SRC,			maskipsrc)
+	__ADD(EXP_ATTR_MASK_IP_DST,			maskipdst)
+	__ADD(EXP_ATTR_MASK_L4PROTO_NUM,		maskprotonum)
+	__ADD(EXP_ATTR_MASK_L4PROTO_PORTS,		maskports)
+	__ADD(EXP_ATTR_MASK_L4PROTO_ICMP,		maskicmp)
+	__ADD(EXP_ATTR_NAT_IP_SRC,			natipsrc)
+	__ADD(EXP_ATTR_NAT_IP_DST,			natipdst)
+	__ADD(EXP_ATTR_NAT_L4PROTO_NUM,			natprotonum)
+	__ADD(EXP_ATTR_NAT_L4PROTO_PORTS,		natports)
+	__ADD(EXP_ATTR_NAT_L4PROTO_ICMP,		naticmp)
+	__ADD(EXP_ATTR_NAT_DIR,				natdir)
+};
+
+static char *exp_attrs2str(int attrs, char *buf, size_t len)
+{
+	return __flags2str(attrs, buf, len, exp_attrs, ARRAY_SIZE(exp_attrs));
+}
+
+/**
+ * @name Allocation/Freeing
+ * @{
+ */
+
+struct nfnl_exp *nfnl_exp_alloc(void)
+{
+	return (struct nfnl_exp *) nl_object_alloc(&exp_obj_ops);
+}
+
+void nfnl_exp_get(struct nfnl_exp *exp)
+{
+	nl_object_get((struct nl_object *) exp);
+}
+
+void nfnl_exp_put(struct nfnl_exp *exp)
+{
+	nl_object_put((struct nl_object *) exp);
+}
+
+/** @} */
+
+/**
+ * @name Attributes
+ * @{
+ */
+
+void nfnl_exp_set_family(struct nfnl_exp *exp, uint8_t family)
+{
+	exp->exp_family = family;
+	exp->ce_mask |= EXP_ATTR_FAMILY;
+}
+
+uint8_t nfnl_exp_get_family(const struct nfnl_exp *exp)
+{
+	if (exp->ce_mask & EXP_ATTR_FAMILY)
+		return exp->exp_family;
+	else
+		return AF_UNSPEC;
+}
+
+void nfnl_exp_set_flags(struct nfnl_exp *exp, uint32_t flags)
+{
+	exp->exp_flags |= flags;
+	exp->ce_mask |= EXP_ATTR_FLAGS;
+}
+
+int nfnl_exp_test_flags(const struct nfnl_exp *exp)
+{
+	return !!(exp->ce_mask & EXP_ATTR_FLAGS);
+}
+
+void nfnl_exp_unset_flags(struct nfnl_exp *exp, uint32_t flags)
+{
+	exp->exp_flags &= ~flags;
+	exp->ce_mask |= EXP_ATTR_FLAGS;
+}
+
+uint32_t nfnl_exp_get_flags(const struct nfnl_exp *exp)
+{
+	return exp->exp_flags;
+}
+
+static const struct trans_tbl flag_table[] = {
+	__ADD(IPS_EXPECTED, expected)
+	__ADD(IPS_SEEN_REPLY, seen_reply)
+	__ADD(IPS_ASSURED, assured)
+};
+
+char * nfnl_exp_flags2str(int flags, char *buf, size_t len)
+{
+	return __flags2str(flags, buf, len, flag_table,
+			   ARRAY_SIZE(flag_table));
+}
+
+int nfnl_exp_str2flags(const char *name)
+{
+	return __str2flags(name, flag_table, ARRAY_SIZE(flag_table));
+}
+
+void nfnl_exp_set_timeout(struct nfnl_exp *exp, uint32_t timeout)
+{
+	exp->exp_timeout = timeout;
+	exp->ce_mask |= EXP_ATTR_TIMEOUT;
+}
+
+int nfnl_exp_test_timeout(const struct nfnl_exp *exp)
+{
+	return !!(exp->ce_mask & EXP_ATTR_TIMEOUT);
+}
+
+uint32_t nfnl_exp_get_timeout(const struct nfnl_exp *exp)
+{
+	return exp->exp_timeout;
+}
+
+void nfnl_exp_set_id(struct nfnl_exp *exp, uint32_t id)
+{
+	exp->exp_id = id;
+	exp->ce_mask |= EXP_ATTR_ID;
+}
+
+int nfnl_exp_test_id(const struct nfnl_exp *exp)
+{
+	return !!(exp->ce_mask & EXP_ATTR_ID);
+}
+
+uint32_t nfnl_exp_get_id(const struct nfnl_exp *exp)
+{
+	return exp->exp_id;
+}
+
+int nfnl_exp_set_helper_name(struct nfnl_exp *exp, void *name)
+{
+	free(exp->exp_helper_name);
+	exp->exp_helper_name = strdup(name);
+	if (!exp->exp_helper_name)
+		return -NLE_NOMEM;
+
+	exp->ce_mask |= EXP_ATTR_HELPER_NAME;
+	return 0;
+}
+
+int  nfnl_exp_test_helper_name(const struct nfnl_exp *exp)
+{
+	return !!(exp->ce_mask & EXP_ATTR_HELPER_NAME);
+}
+
+const char * nfnl_exp_get_helper_name(const struct nfnl_exp *exp)
+{
+	return exp->exp_helper_name;
+}
+
+void nfnl_exp_set_zone(struct nfnl_exp *exp, uint16_t zone)
+{
+	exp->exp_zone = zone;
+	exp->ce_mask |= EXP_ATTR_ZONE;
+}
+
+int nfnl_exp_test_zone(const struct nfnl_exp *exp)
+{
+	return !!(exp->ce_mask & EXP_ATTR_ZONE);
+}
+
+uint16_t nfnl_exp_get_zone(const struct nfnl_exp *exp)
+{
+	return exp->exp_zone;
+}
+
+void nfnl_exp_set_class(struct nfnl_exp *exp, uint32_t class)
+{
+	exp->exp_class = class;
+	exp->ce_mask |= EXP_ATTR_CLASS;
+}
+
+int nfnl_exp_test_class(const struct nfnl_exp *exp)
+{
+	return !!(exp->ce_mask & EXP_ATTR_CLASS);
+}
+
+uint32_t nfnl_exp_get_class(const struct nfnl_exp *exp)
+{
+	return exp->exp_class;
+}
+
+int nfnl_exp_set_fn(struct nfnl_exp *exp, void *fn)
+{
+	free(exp->exp_fn);
+	exp->exp_fn = strdup(fn);
+	if (!exp->exp_fn)
+		return -NLE_NOMEM;
+
+	exp->ce_mask |= EXP_ATTR_FN;
+	return 0;
+}
+
+int nfnl_exp_test_fn(const struct nfnl_exp *exp)
+{
+	return !!(exp->ce_mask & EXP_ATTR_FN);
+}
+
+const char * nfnl_exp_get_fn(const struct nfnl_exp *exp)
+{
+	return exp->exp_fn;
+}
+
+void nfnl_exp_set_nat_dir(struct nfnl_exp *exp, uint8_t nat_dir)
+{
+	exp->exp_nat_dir = nat_dir;
+	exp->ce_mask |= EXP_ATTR_NAT_DIR;
+}
+
+int nfnl_exp_test_nat_dir(const struct nfnl_exp *exp)
+{
+	return !!(exp->ce_mask & EXP_ATTR_NAT_DIR);
+}
+
+uint8_t nfnl_exp_get_nat_dir(const struct nfnl_exp *exp)
+{
+	return exp->exp_nat_dir;
+}
+
+#define EXP_GET_TUPLE(e, t) \
+	(t == NFNL_EXP_TUPLE_MASTER) ? \
+		&(e->exp_master) : \
+	(t == NFNL_EXP_TUPLE_MASK) ? \
+		&(e->exp_mask) : \
+	(t == NFNL_EXP_TUPLE_NAT) ? \
+		&(e->exp_nat) : &(exp->exp_expect)
+
+static int exp_get_src_attr(int tuple)
+{
+	int attr = 0;
+
+	switch (tuple) {
+		case NFNL_EXP_TUPLE_MASTER:
+			attr = EXP_ATTR_MASTER_IP_SRC;
+			break;
+		case NFNL_EXP_TUPLE_MASK:
+			attr = EXP_ATTR_MASK_IP_SRC;
+			break;
+		case NFNL_EXP_TUPLE_NAT:
+			attr = EXP_ATTR_NAT_IP_SRC;
+			break;
+		case NFNL_EXP_TUPLE_EXPECT:
+		default :
+			attr = EXP_ATTR_EXPECT_IP_SRC;
+	}
+
+	return attr;
+}
+
+static int exp_get_dst_attr(int tuple)
+{
+	int attr = 0;
+
+	switch (tuple) {
+		case NFNL_EXP_TUPLE_MASTER:
+			attr = EXP_ATTR_MASTER_IP_DST;
+			break;
+		case NFNL_EXP_TUPLE_MASK:
+			attr = EXP_ATTR_MASK_IP_DST;
+			break;
+		case NFNL_EXP_TUPLE_NAT:
+			attr = EXP_ATTR_NAT_IP_DST;
+			break;
+		case NFNL_EXP_TUPLE_EXPECT:
+		default :
+			attr = EXP_ATTR_EXPECT_IP_DST;
+	}
+
+	return attr;
+}
+
+
+static int exp_set_addr(struct nfnl_exp *exp, struct nl_addr *addr,
+                          int attr, struct nl_addr ** exp_addr)
+{
+	if (exp->ce_mask & EXP_ATTR_FAMILY) {
+		if (addr->a_family != exp->exp_family)
+			return -NLE_AF_MISMATCH;
+	} else
+		nfnl_exp_set_family(exp, addr->a_family);
+
+	if (*exp_addr)
+		nl_addr_put(*exp_addr);
+
+	nl_addr_get(addr);
+	*exp_addr = addr;
+	exp->ce_mask |= attr;
+
+	return 0;
+}
+
+int nfnl_exp_set_src(struct nfnl_exp *exp, int tuple, struct nl_addr *addr)
+{
+	struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+
+	return exp_set_addr(exp, addr, exp_get_src_attr(tuple), &dir->src);
+}
+
+int nfnl_exp_set_dst(struct nfnl_exp *exp, int tuple, struct nl_addr *addr)
+{
+	struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+
+	return exp_set_addr(exp, addr, exp_get_dst_attr(tuple), &dir->dst);
+}
+
+int nfnl_exp_test_src(const struct nfnl_exp *exp, int tuple)
+{
+	return !!(exp->ce_mask & exp_get_src_attr(tuple));
+}
+
+int nfnl_exp_test_dst(const struct nfnl_exp *exp, int tuple)
+{
+	return !!(exp->ce_mask & exp_get_dst_attr(tuple));
+}
+
+struct nl_addr *nfnl_exp_get_src(const struct nfnl_exp *exp, int tuple)
+{
+	const struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+
+	if (!(exp->ce_mask & exp_get_src_attr(tuple)))
+		return NULL;
+	return dir->src;
+}
+
+struct nl_addr *nfnl_exp_get_dst(const struct nfnl_exp *exp, int tuple)
+{
+	const struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+
+	if (!(exp->ce_mask & exp_get_dst_attr(tuple)))
+		return NULL;
+	return dir->dst;
+}
+
+static int exp_get_l4protonum_attr(int tuple)
+{
+	int attr = 0;
+
+	switch (tuple) {
+		case NFNL_EXP_TUPLE_MASTER:
+			attr = EXP_ATTR_MASTER_L4PROTO_NUM;
+			break;
+		case NFNL_EXP_TUPLE_MASK:
+			attr = EXP_ATTR_MASK_L4PROTO_NUM;
+			break;
+		case NFNL_EXP_TUPLE_NAT:
+			attr = EXP_ATTR_NAT_L4PROTO_NUM;
+			break;
+		case NFNL_EXP_TUPLE_EXPECT:
+		default :
+			attr = EXP_ATTR_EXPECT_L4PROTO_NUM;
+	}
+
+	return attr;
+}
+
+void nfnl_exp_set_l4protonum(struct nfnl_exp *exp, int tuple, uint8_t l4protonum)
+{
+	struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+
+	dir->proto.l4protonum = l4protonum;
+	exp->ce_mask |= exp_get_l4protonum_attr(tuple);
+}
+
+int nfnl_exp_test_l4protonum(const struct nfnl_exp *exp, int tuple)
+{
+	return !!(exp->ce_mask & exp_get_l4protonum_attr(tuple));
+}
+
+uint8_t nfnl_exp_get_l4protonum(const struct nfnl_exp *exp, int tuple)
+{
+	const struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+	return dir->proto.l4protonum;
+}
+
+static int exp_get_l4ports_attr(int tuple)
+{
+	int attr = 0;
+
+	switch (tuple) {
+		case NFNL_EXP_TUPLE_MASTER:
+			attr = EXP_ATTR_MASTER_L4PROTO_PORTS;
+			break;
+		case NFNL_EXP_TUPLE_MASK:
+			attr = EXP_ATTR_MASK_L4PROTO_PORTS;
+			break;
+		case NFNL_EXP_TUPLE_NAT:
+			attr = EXP_ATTR_NAT_L4PROTO_PORTS;
+			break;
+		case NFNL_EXP_TUPLE_EXPECT:
+		default :
+			attr = EXP_ATTR_EXPECT_L4PROTO_PORTS;
+	}
+
+	return attr;
+}
+
+void nfnl_exp_set_ports(struct nfnl_exp *exp, int tuple, uint16_t srcport, uint16_t dstport)
+{
+	struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+
+	dir->proto.l4protodata.port.src = srcport;
+	dir->proto.l4protodata.port.dst = dstport;
+
+	exp->ce_mask |= exp_get_l4ports_attr(tuple);
+}
+
+int nfnl_exp_test_ports(const struct nfnl_exp *exp, int tuple)
+{
+	return !!(exp->ce_mask & exp_get_l4ports_attr(tuple));
+}
+
+uint16_t nfnl_exp_get_src_port(const struct nfnl_exp *exp, int tuple)
+{
+	const struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+	return dir->proto.l4protodata.port.src;
+}
+
+uint16_t nfnl_exp_get_dst_port(const struct nfnl_exp *exp, int tuple)
+{
+	const struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+
+	return dir->proto.l4protodata.port.dst;
+}
+
+static int exp_get_l4icmp_attr(int tuple)
+{
+	int attr = 0;
+
+	switch (tuple) {
+		case NFNL_EXP_TUPLE_MASTER:
+			attr = EXP_ATTR_MASTER_L4PROTO_ICMP;
+			break;
+		case NFNL_EXP_TUPLE_MASK:
+			attr = EXP_ATTR_MASK_L4PROTO_ICMP;
+			break;
+		case NFNL_EXP_TUPLE_NAT:
+			attr = EXP_ATTR_NAT_L4PROTO_ICMP;
+			break;
+		case NFNL_EXP_TUPLE_EXPECT:
+		default :
+			attr = EXP_ATTR_EXPECT_L4PROTO_ICMP;
+	}
+
+	return attr;
+}
+
+void nfnl_exp_set_icmp(struct nfnl_exp *exp, int tuple, uint16_t id, uint8_t type, uint8_t code)
+{
+	struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+
+	dir->proto.l4protodata.icmp.id = id;
+	dir->proto.l4protodata.icmp.type = type;
+	dir->proto.l4protodata.icmp.code = code;
+
+	exp->ce_mask |= exp_get_l4icmp_attr(tuple);
+}
+
+int nfnl_exp_test_icmp(const struct nfnl_exp *exp, int tuple)
+{
+	int attr = exp_get_l4icmp_attr(tuple);
+	return !!(exp->ce_mask & attr);
+}
+
+uint16_t nfnl_exp_get_icmp_id(const struct nfnl_exp *exp, int tuple)
+{
+	const struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+
+	return dir->proto.l4protodata.icmp.id;
+}
+
+uint8_t nfnl_exp_get_icmp_type(const struct nfnl_exp *exp, int tuple)
+{
+	const struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+
+	return dir->proto.l4protodata.icmp.type;
+}
+
+uint8_t nfnl_exp_get_icmp_code(const struct nfnl_exp *exp, int tuple)
+{
+	const struct nfnl_exp_dir *dir = EXP_GET_TUPLE(exp, tuple);
+
+	return dir->proto.l4protodata.icmp.code;
+}
+
+/** @} */
+
+struct nl_object_ops exp_obj_ops = {
+	.oo_name	= "netfilter/exp",
+	.oo_size	= sizeof(struct nfnl_exp),
+	.oo_free_data   = exp_free_data,
+	.oo_clone	= exp_clone,
+	.oo_dump = {
+		[NL_DUMP_LINE]		= exp_dump_line,
+		[NL_DUMP_DETAILS]	= exp_dump_details,
+	},
+	.oo_compare	= exp_compare,
+	.oo_attrs2str	= exp_attrs2str,
+};
+
+/** @} */
diff --git a/src/.gitignore b/src/.gitignore
index cad6f75..3e091cb 100644
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -1,5 +1,8 @@
 genl-ctrl-list
 nf-ct-list
+nf-exp-list
+nf-exp-add
+nf-exp-delete
 nf-log
 nf-monitor
 nl-addr-add
diff --git a/src/Makefile.am b/src/Makefile.am
index 132a415..c318dcc 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -22,6 +22,7 @@ sbin_PROGRAMS = \
 
 noinst_PROGRAMS = \
 	nf-ct-list nf-log nf-queue nf-monitor \
+	nf-exp-list nf-exp-add nf-exp-delete \
 	nl-addr-add nl-addr-delete nl-addr-list \
 	nl-link-set nl-link-stats \
 	nl-link-ifindex2name nl-link-name2ifindex \
@@ -44,6 +45,10 @@ nf_log_SOURCES = nf-log.c
 nf_queue_SOURCES = nf-queue.c 
 nf_monitor_SOURCES = nf-monitor.c
 
+nf_exp_list_SOURCES = nf-exp-list.c 
+nf_exp_add_SOURCES = nf-exp-add.c 
+nf_exp_delete_SOURCES = nf-exp-delete.c 
+
 nl_addr_add_SOURCES = nl-addr-add.c
 nl_addr_delete_SOURCES = nl-addr-delete.c
 nl_addr_list_SOURCES = nl-addr-list.c
diff --git a/src/lib/Makefile.am b/src/lib/Makefile.am
index a88163a..6688e7c 100644
--- a/src/lib/Makefile.am
+++ b/src/lib/Makefile.am
@@ -38,6 +38,6 @@ libnl_cli_3_la_LIBADD  = ${top_builddir}/lib/libnl-3.la \
 
 libnl_cli_3_la_SOURCES = \
 	utils.c addr.c ct.c link.c neigh.c rule.c route.c \
-	tc.c qdisc.c class.c cls.c
+	tc.c qdisc.c class.c cls.c exp.c
 #	cls/ematch_syntax.c cls/ematch_grammar.c cls/ematch.c
 #	cls/pktloc_syntax.c cls/pktloc_grammar.c cls/utils.c
diff --git a/src/lib/exp.c b/src/lib/exp.c
new file mode 100644
index 0000000..a7a74f5
--- /dev/null
+++ b/src/lib/exp.c
@@ -0,0 +1,165 @@
+/*
+ * src/lib/exp.c		CLI Expectation Helpers
+ *
+ *	This library is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU Lesser General Public
+ *	License as published by the Free Software Foundation version 2.1
+ *	of the License.
+ *
+ * Copyright (c) 2008-2009 Thomas Graf <tgraf@suug.ch>
+ * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
+ */
+
+/**
+ * @ingroup cli
+ * @defgroup cli_exp Expectation Tracking
+ *
+ * @{
+ */
+
+#include <netlink/cli/utils.h>
+#include <netlink/cli/exp.h>
+
+struct nfnl_exp *nl_cli_exp_alloc(void)
+{
+	struct nfnl_exp *exp;
+
+	exp = nfnl_exp_alloc();
+	if (!exp)
+		nl_cli_fatal(ENOMEM, "Unable to allocate expectation object");
+
+	return exp;
+}
+
+struct nl_cache *nl_cli_exp_alloc_cache(struct nl_sock *sk)
+{
+	return nl_cli_alloc_cache(sk, "expectation", nfnl_exp_alloc_cache);
+}
+
+void nl_cli_exp_parse_family(struct nfnl_exp *exp, char *arg)
+{
+	int family;
+
+	if ((family = nl_str2af(arg)) == AF_UNSPEC)
+		nl_cli_fatal(EINVAL,
+			     "Unable to nl_cli_exp_parse family \"%s\": %s",
+			     arg, nl_geterror(NLE_INVAL));
+
+	nfnl_exp_set_family(exp, family);
+}
+
+void nl_cli_exp_parse_timeout(struct nfnl_exp *exp, char *arg)
+{
+	uint32_t timeout = nl_cli_parse_u32(arg);
+	nfnl_exp_set_timeout(exp, timeout);
+}
+
+void nl_cli_exp_parse_id(struct nfnl_exp *exp, char *arg)
+{
+	uint32_t id = nl_cli_parse_u32(arg);
+	nfnl_exp_set_id(exp, id);
+}
+
+void nl_cli_exp_parse_helper_name(struct nfnl_exp *exp, char *arg)
+{
+	nfnl_exp_set_helper_name(exp, arg);
+}
+
+void nl_cli_exp_parse_zone(struct nfnl_exp *exp, char *arg)
+{
+	uint32_t zone = nl_cli_parse_u32(arg);
+	nfnl_exp_set_zone(exp, zone);
+}
+
+void nl_cli_exp_parse_flags(struct nfnl_exp *exp, char *arg)
+{
+	uint32_t flags = nl_cli_parse_u32(arg);
+	nfnl_exp_set_flags(exp, flags);
+}
+
+void nl_cli_exp_parse_class(struct nfnl_exp *exp, char *arg)
+{
+	uint32_t class = nl_cli_parse_u32(arg);
+	nfnl_exp_set_class(exp, class);
+}
+
+void nl_cli_exp_parse_nat_dir(struct nfnl_exp *exp, char *arg)
+{
+	uint32_t nat_dir = nl_cli_parse_u32(arg);
+	nfnl_exp_set_nat_dir(exp, nat_dir);
+}
+
+void nl_cli_exp_parse_fn(struct nfnl_exp *exp, char *arg)
+{
+	nfnl_exp_set_fn(exp, arg);
+}
+
+void nl_cli_exp_parse_src(struct nfnl_exp *exp, int tuple, char *arg)
+{
+	int err;
+	struct nl_addr *a = nl_cli_addr_parse(arg, nfnl_exp_get_family(exp));
+	if ((err = nfnl_exp_set_src(exp, tuple, a)) < 0)
+		nl_cli_fatal(err, "Unable to set source address: %s",
+			     nl_geterror(err));
+}
+
+void nl_cli_exp_parse_dst(struct nfnl_exp *exp, int tuple, char *arg)
+{
+	int err;
+	struct nl_addr *a = nl_cli_addr_parse(arg, nfnl_exp_get_family(exp));
+	if ((err = nfnl_exp_set_dst(exp, tuple, a)) < 0)
+		nl_cli_fatal(err, "Unable to set destination address: %s",
+			     nl_geterror(err));
+}
+
+void nl_cli_exp_parse_l4protonum(struct nfnl_exp *exp, int tuple, char *arg)
+{
+	int l4protonum;
+
+	if ((l4protonum = nl_str2ip_proto(arg)) < 0)
+		nl_cli_fatal(l4protonum,
+			"Unable to nl_cli_exp_parse protocol \"%s\": %s",
+			arg, nl_geterror(l4protonum));
+
+	nfnl_exp_set_l4protonum(exp, tuple, l4protonum);
+}
+
+void nl_cli_exp_parse_src_port(struct nfnl_exp *exp, int tuple, char *arg)
+{
+	uint32_t sport = nl_cli_parse_u32(arg);
+	uint16_t dport = nfnl_exp_get_dst_port(exp, tuple);
+	nfnl_exp_set_ports(exp, tuple, sport, dport);
+}
+
+void nl_cli_exp_parse_dst_port(struct nfnl_exp *exp, int tuple, char *arg)
+{
+	uint32_t dport = nl_cli_parse_u32(arg);
+	uint16_t sport = nfnl_exp_get_src_port(exp, tuple);
+	nfnl_exp_set_ports(exp, tuple, sport, dport);
+}
+
+void nl_cli_exp_parse_icmp_id(struct nfnl_exp *exp, int tuple, char *arg)
+{
+	uint32_t id = nl_cli_parse_u32(arg);
+	uint8_t type = nfnl_exp_get_icmp_type(exp, tuple);
+	uint8_t code = nfnl_exp_get_icmp_code(exp, tuple);
+	nfnl_exp_set_icmp(exp, tuple, id, type, code);
+}
+
+void nl_cli_exp_parse_icmp_type(struct nfnl_exp *exp, int tuple, char *arg)
+{
+	uint32_t type = nl_cli_parse_u32(arg);
+	uint16_t id = nfnl_exp_get_icmp_id(exp, tuple);
+	uint8_t code = nfnl_exp_get_icmp_code(exp, tuple);
+	nfnl_exp_set_icmp(exp, tuple, id, type, code);
+}
+
+void nl_cli_exp_parse_icmp_code(struct nfnl_exp *exp, int tuple, char *arg)
+{
+	uint32_t code = nl_cli_parse_u32(arg);
+	uint16_t id = nfnl_exp_get_icmp_id(exp, tuple);
+	uint8_t type = nfnl_exp_get_icmp_type(exp, tuple);
+	nfnl_exp_set_icmp(exp, tuple, id, type, code);
+}
+
+/** @} */
diff --git a/src/nf-exp-add.c b/src/nf-exp-add.c
new file mode 100644
index 0000000..f760ee5
--- /dev/null
+++ b/src/nf-exp-add.c
@@ -0,0 +1,169 @@
+/*
+ * src/nf-exp-add.c     Create an expectation
+ *
+ *	This library is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU Lesser General Public
+ *	License as published by the Free Software Foundation version 2.1
+ *	of the License.
+ *
+ * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
+ * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
+ * Copyright (c) 2007 Secure Computing Corporation
+ * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
+ *
+ */
+
+#include <netlink/cli/utils.h>
+#include <netlink/cli/exp.h>
+
+static int quiet = 0;
+
+static void print_usage(void)
+{
+	printf(
+	"Usage: nf-exp-list [OPTION]... [CONNTRACK ENTRY]\n"
+	"\n"
+	"Options\n"
+	"     --replace             Replace the address if it exists.\n"
+	" -q, --quiet               Do not print informal notifications.\n"
+	" -h, --help            Show this help\n"
+	" -v, --version         Show versioning information\n"
+	"\n"
+	"Expectation Selection\n"
+	" -i, --id=NUM                Identifier\n"
+	"     --expect-proto=PROTOCOL Expectation protocol\n"
+	"     --expect-src=ADDR       Expectation source address\n"
+	"     --expect-sport=PORT     Expectation source port\n"
+	"     --expect-dst=ADDR       Expectation destination address\n"
+	"     --expect-dport=PORT     Expectation destination port\n"
+	"     --master-proto=PROTOCOL Master conntrack protocol\n"
+	"     --master-src=ADDR       Master conntrack source address\n"
+	"     --master-sport=PORT     Master conntrack source port\n"
+	"     --master-dst=ADDR       Master conntrack destination address\n"
+	"     --master-dport=PORT     Master conntrack destination port\n"
+	"     --mask-proto=PROTOCOL   Mask protocol\n"
+	"     --mask-src=ADDR         Mask source address\n"
+	"     --mask-sport=PORT       Mask source port\n"
+	"     --mask-dst=ADDR         Mask destination address\n"
+	"     --mask-dport=PORT       Mask destination port\n"
+	" -F, --family=FAMILY         Address family\n"
+	"     --timeout=NUM           Timeout value\n"
+	"     --helper=STRING         Helper Name\n"
+	"     --flags                 Flags (Kernel 2.6.37)\n"
+	);
+	exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+	struct nl_sock *sock;
+	struct nfnl_exp *exp;
+	struct nl_dump_params params = {
+		.dp_type = NL_DUMP_LINE,
+		.dp_fd = stdout,
+	};
+	int err, nlflags = NLM_F_CREATE;
+
+ 	exp = nl_cli_exp_alloc();
+ 
+	for (;;) {
+		int c, optidx = 0;
+		enum {
+			ARG_MARK = 270,
+			ARG_TCP_STATE = 271,
+			ARG_EXPECT_PROTO,
+			ARG_EXPECT_SRC,
+			ARG_EXPECT_SPORT,
+			ARG_EXPECT_DST,
+			ARG_EXPECT_DPORT,
+			ARG_MASTER_PROTO,
+			ARG_MASTER_SRC,
+			ARG_MASTER_SPORT,
+			ARG_MASTER_DST,
+			ARG_MASTER_DPORT,
+			ARG_MASK_PROTO,
+			ARG_MASK_SRC,
+			ARG_MASK_SPORT,
+			ARG_MASK_DST,
+			ARG_MASK_DPORT,
+			ARG_TIMEOUT,
+			ARG_HELPER_NAME,
+			ARG_REPLACE,
+			ARG_FLAGS,
+		};
+		static struct option long_opts[] = {
+			{ "replace", 1, 0, ARG_REPLACE },
+			{ "quiet", 0, 0, 'q' },
+			{ "help", 0, 0, 'h' },
+			{ "version", 0, 0, 'v' },
+			{ "id", 1, 0, 'i' },
+			{ "expect-proto", 1, 0, ARG_EXPECT_PROTO },
+			{ "expect-src", 1, 0, ARG_EXPECT_SRC },
+			{ "expect-sport", 1, 0, ARG_EXPECT_SPORT },
+			{ "expect-dst", 1, 0, ARG_EXPECT_DST },
+			{ "expect-dport", 1, 0, ARG_EXPECT_DPORT },
+			{ "master-proto", 1, 0, ARG_MASTER_PROTO },
+			{ "master-src", 1, 0, ARG_MASTER_SRC },
+			{ "master-sport", 1, 0, ARG_MASTER_SPORT },
+			{ "master-dst", 1, 0, ARG_MASTER_DST },
+			{ "master-dport", 1, 0, ARG_MASTER_DPORT },
+			{ "mask-proto", 1, 0, ARG_MASK_PROTO },
+			{ "mask-src", 1, 0, ARG_MASK_SRC },
+			{ "mask-sport", 1, 0, ARG_MASK_SPORT },
+			{ "mask-dst", 1, 0, ARG_MASK_DST },
+			{ "mask-dport", 1, 0, ARG_MASK_DPORT },
+			{ "family", 1, 0, 'F' },
+			{ "timeout", 1, 0, ARG_TIMEOUT },
+			{ "helper", 1, 0, ARG_HELPER_NAME },
+			{ "flags", 1, 0, ARG_FLAGS},
+			{ 0, 0, 0, 0 }
+		};
+	
+		c = getopt_long(argc, argv, "46f:hvi:p:F:", long_opts, &optidx);
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case '?': exit(NLE_INVAL);
+		case ARG_REPLACE: nlflags |= NLM_F_REPLACE; break;
+		case 'q': quiet = 1; break;
+		case '4': nfnl_exp_set_family(exp, AF_INET); break;
+		case '6': nfnl_exp_set_family(exp, AF_INET6); break;
+		case 'h': print_usage(); break;
+		case 'v': nl_cli_print_version(); break;
+		case 'i': nl_cli_exp_parse_id(exp, optarg); break;
+		case ARG_EXPECT_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_EXPECT_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_EXPECT_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_EXPECT_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_EXPECT_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_MASTER_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASTER_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASTER_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASTER_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASTER_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASK_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
+		case ARG_MASK_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
+		case ARG_MASK_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
+		case ARG_MASK_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
+		case ARG_MASK_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
+		case 'F': nl_cli_exp_parse_family(exp, optarg); break;
+		case ARG_TIMEOUT: nl_cli_exp_parse_timeout(exp, optarg); break;
+		case ARG_HELPER_NAME: nl_cli_exp_parse_helper_name(exp, optarg); break;
+		case ARG_FLAGS: nl_cli_exp_parse_flags(exp, optarg); break;
+		}
+ 	}
+
+	sock = nl_cli_alloc_socket();
+	nl_cli_connect(sock, NETLINK_NETFILTER);
+
+	if ((err = nfnl_exp_add(sock, exp, nlflags)) < 0)
+		nl_cli_fatal(err, "Unable to add expectation: %s", nl_geterror(err));
+
+	if (!quiet) {
+		printf("Added ");
+		nl_object_dump(OBJ_CAST(exp), &params);
+	}
+
+	return 0;
+}
diff --git a/src/nf-exp-delete.c b/src/nf-exp-delete.c
new file mode 100644
index 0000000..2ec45ae
--- /dev/null
+++ b/src/nf-exp-delete.c
@@ -0,0 +1,165 @@
+/*
+ * src/nf-exp-delete.c     Delete an expectation
+ *
+ *	This library is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU Lesser General Public
+ *	License as published by the Free Software Foundation version 2.1
+ *	of the License.
+ *
+ * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
+ * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
+ * Copyright (c) 2007 Secure Computing Corporation
+ * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
+ */
+
+#include <netlink/cli/utils.h>
+#include <netlink/cli/exp.h>
+
+static int quiet = 0;
+
+static void print_usage(void)
+{
+	printf(
+	"Usage: nf-exp-list [OPTION]... [CONNTRACK ENTRY]\n"
+	"\n"
+	"Options\n"
+	"     --replace             Replace the address if it exists.\n"
+	" -q, --quiet               Do not print informal notifications.\n"
+	" -h, --help                Show this help\n"
+	" -v, --version             Show versioning information\n"
+	"\n"
+	"Expectation Selection\n"
+	" -i, --id=NUM                Identifier\n"
+	"     --expect-proto=PROTOCOL Expectation protocol\n"
+	"     --expect-src=ADDR       Expectation source address\n"
+	"     --expect-sport=PORT     Expectation source port\n"
+	"     --expect-dst=ADDR       Expectation destination address\n"
+	"     --expect-dport=PORT     Expectation destination port\n"
+	"     --master-proto=PROTOCOL Master conntrack protocol\n"
+	"     --master-src=ADDR       Master conntrack source address\n"
+	"     --master-sport=PORT     Master conntrack source port\n"
+	"     --master-dst=ADDR       Master conntrack destination address\n"
+	"     --master-dport=PORT     Master conntrack destination port\n"
+	"     --mask-proto=PROTOCOL   Mask protocol\n"
+	"     --mask-src=ADDR         Mask source address\n"
+	"     --mask-sport=PORT       Mask source port\n"
+	"     --mask-dst=ADDR         Mask destination address\n"
+	"     --mask-dport=PORT       Mask destination port\n"
+	" -F, --family=FAMILY         Address family\n"
+	"     --timeout=NUM           Timeout value\n"
+	"     --helper=STRING         Helper Name\n"
+	"     --flags                 Flags\n"
+	);
+	exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+	struct nl_sock *sock;
+	struct nfnl_exp *exp;
+	struct nl_dump_params params = {
+		.dp_type = NL_DUMP_LINE,
+		.dp_fd = stdout,
+	};
+	int err, nlflags = 0;
+
+ 	exp = nl_cli_exp_alloc();
+ 
+	for (;;) {
+		int c, optidx = 0;
+		enum {
+			ARG_MARK = 270,
+			ARG_TCP_STATE = 271,
+			ARG_EXPECT_PROTO,
+			ARG_EXPECT_SRC,
+			ARG_EXPECT_SPORT,
+			ARG_EXPECT_DST,
+			ARG_EXPECT_DPORT,
+			ARG_MASTER_PROTO,
+			ARG_MASTER_SRC,
+			ARG_MASTER_SPORT,
+			ARG_MASTER_DST,
+			ARG_MASTER_DPORT,
+ 			ARG_MASK_PROTO,
+ 			ARG_MASK_SRC,
+			ARG_MASK_SPORT,
+			ARG_MASK_DST,
+			ARG_MASK_DPORT,
+			ARG_TIMEOUT,
+ 			ARG_HELPER_NAME,
+			ARG_FLAGS,
+		};
+		static struct option long_opts[] = {
+ 			{ "quiet", 0, 0, 'q' },
+			{ "help", 0, 0, 'h' },
+			{ "version", 0, 0, 'v' },
+			{ "id", 1, 0, 'i' },
+			{ "expect-proto", 1, 0, ARG_EXPECT_PROTO },
+			{ "expect-src", 1, 0, ARG_EXPECT_SRC },
+			{ "expect-sport", 1, 0, ARG_EXPECT_SPORT },
+			{ "expect-dst", 1, 0, ARG_EXPECT_DST },
+			{ "expect-dport", 1, 0, ARG_EXPECT_DPORT },
+			{ "master-proto", 1, 0, ARG_MASTER_PROTO },
+			{ "master-src", 1, 0, ARG_MASTER_SRC },
+			{ "master-sport", 1, 0, ARG_MASTER_SPORT },
+			{ "master-dst", 1, 0, ARG_MASTER_DST },
+			{ "master-dport", 1, 0, ARG_MASTER_DPORT },
+			{ "mask-proto", 1, 0, ARG_MASK_PROTO },
+ 			{ "mask-src", 1, 0, ARG_MASK_SRC },
+ 			{ "mask-sport", 1, 0, ARG_MASK_SPORT },
+ 			{ "mask-dst", 1, 0, ARG_MASK_DST },
+ 			{ "mask-dport", 1, 0, ARG_MASK_DPORT },
+			{ "family", 1, 0, 'F' },
+			{ "timeout", 1, 0, ARG_TIMEOUT },
+			{ "helper", 1, 0, ARG_HELPER_NAME },
+ 			{ "flags", 1, 0, ARG_FLAGS},
+			{ 0, 0, 0, 0 }
+		};
+	
+		c = getopt_long(argc, argv, "46f:hvi:p:F:", long_opts, &optidx);
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case '?': exit(NLE_INVAL);
+		case 'q': quiet = 1; break;
+		case '4': nfnl_exp_set_family(exp, AF_INET); break;
+		case '6': nfnl_exp_set_family(exp, AF_INET6); break;
+		case 'h': print_usage(); break;
+		case 'v': nl_cli_print_version(); break;
+		case 'i': nl_cli_exp_parse_id(exp, optarg); break;
+		case ARG_EXPECT_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_EXPECT_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_EXPECT_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_EXPECT_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_EXPECT_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_MASTER_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASTER_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASTER_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASTER_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASTER_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASK_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
+		case ARG_MASK_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
+		case ARG_MASK_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
+		case ARG_MASK_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
+ 		case ARG_MASK_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
+		case 'F': nl_cli_exp_parse_family(exp, optarg); break;
+		case ARG_TIMEOUT: nl_cli_exp_parse_timeout(exp, optarg); break;
+		case ARG_HELPER_NAME: nl_cli_exp_parse_helper_name(exp, optarg); break;
+		case ARG_FLAGS: nl_cli_exp_parse_flags(exp, optarg); break;
+		}
+ 	}
+
+	sock = nl_cli_alloc_socket();
+	nl_cli_connect(sock, NETLINK_NETFILTER);
+
+	if ((err = nfnl_exp_del(sock, exp, nlflags)) < 0)
+		nl_cli_fatal(err, "Unable to delete expectation: %s", nl_geterror(err));
+
+	if (!quiet) {
+		printf("Deleted ");
+		nl_object_dump(OBJ_CAST(exp), &params);
+	}
+
+	return 0;
+}
diff --git a/src/nf-exp-list.c b/src/nf-exp-list.c
new file mode 100644
index 0000000..1c6ec69
--- /dev/null
+++ b/src/nf-exp-list.c
@@ -0,0 +1,137 @@
+/*
+ * src/nf-exp-list.c     List Expectation Entries
+ *
+ *	This library is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU Lesser General Public
+ *	License as published by the Free Software Foundation version 2.1
+ *	of the License.
+ *
+ * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
+ * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
+ * Copyright (c) 2007 Secure Computing Corporation
+ * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
+ */
+
+#include <netlink/cli/utils.h>
+#include <netlink/cli/exp.h>
+
+static void print_usage(void)
+{
+	printf(
+	"Usage: nf-exp-list [OPTION]... [EXPECTATION ENTRY]\n"
+	"\n"
+	"Options\n"
+	" -f, --format=TYPE     Output format { brief | details }\n"
+	" -h, --help            Show this help\n"
+	" -v, --version         Show versioning information\n"
+	"\n"
+	"Expectation Selection\n"
+	" -i, --id=NUM                Identifier\n"
+	"     --expect-proto=PROTOCOL Expectation protocol\n"
+	"     --expect-src=ADDR       Expectation source address\n"
+	"     --expect-sport=PORT     Expectation source port\n"
+	"     --expect-dst=ADDR       Expectation destination address\n"
+	"     --expect-dport=PORT     Expectation destination port\n"
+	"     --master-proto=PROTOCOL Master conntrack protocol\n"
+	"     --master-src=ADDR       Master conntrack source address\n"
+	"     --master-sport=PORT     Master conntrack source port\n"
+	"     --master-dst=ADDR       Master conntrack destination address\n"
+	"     --master-dport=PORT     Master conntrack destination port\n"
+	" -F, --family=FAMILY         Address family\n"
+	"     --timeout=NUM           Timeout value\n"
+	"     --helper=STRING         Helper Name\n"
+	//"     --flags                 Flags\n"
+	);
+	exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+	struct nl_sock *sock;
+	struct nl_cache *exp_cache;
+	struct nfnl_exp *exp;
+	struct nl_dump_params params = {
+		.dp_type = NL_DUMP_LINE,
+		.dp_fd = stdout,
+	};
+ 
+ 	exp = nl_cli_exp_alloc();
+ 
+	for (;;) {
+		int c, optidx = 0;
+		enum {
+			ARG_MARK = 270,
+			ARG_TCP_STATE = 271,
+			ARG_EXPECT_PROTO,
+			ARG_EXPECT_SRC,
+			ARG_EXPECT_SPORT,
+			ARG_EXPECT_DST,
+			ARG_EXPECT_DPORT,
+			ARG_MASTER_PROTO,
+			ARG_MASTER_SRC,
+			ARG_MASTER_SPORT,
+			ARG_MASTER_DST,
+			ARG_MASTER_DPORT,
+			ARG_TIMEOUT,
+ 			ARG_HELPER_NAME,
+			ARG_FLAGS,
+		};
+		static struct option long_opts[] = {
+			{ "format", 1, 0, 'f' },
+			{ "help", 0, 0, 'h' },
+			{ "version", 0, 0, 'v' },
+			{ "id", 1, 0, 'i' },
+			{ "expect-proto", 1, 0, ARG_EXPECT_PROTO },
+			{ "expect-src", 1, 0, ARG_EXPECT_SRC },
+			{ "expect-sport", 1, 0, ARG_EXPECT_SPORT },
+			{ "expect-dst", 1, 0, ARG_EXPECT_DST },
+			{ "expect-dport", 1, 0, ARG_EXPECT_DPORT },
+			{ "master-proto", 1, 0, ARG_MASTER_PROTO },
+			{ "master-src", 1, 0, ARG_MASTER_SRC },
+			{ "master-sport", 1, 0, ARG_MASTER_SPORT },
+			{ "master-dst", 1, 0, ARG_MASTER_DST },
+			{ "master-dport", 1, 0, ARG_MASTER_DPORT },
+			{ "family", 1, 0, 'F' },
+			{ "timeout", 1, 0, ARG_TIMEOUT },
+			{ "helper", 1, 0, ARG_HELPER_NAME },
+			{ "flags", 1, 0, ARG_FLAGS},
+			{ 0, 0, 0, 0 }
+		};
+	
+		c = getopt_long(argc, argv, "46f:hvi:p:F:", long_opts, &optidx);
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case '?': exit(NLE_INVAL);
+		case '4': nfnl_exp_set_family(exp, AF_INET); break;
+		case '6': nfnl_exp_set_family(exp, AF_INET6); break;
+		case 'f': params.dp_type = nl_cli_parse_dumptype(optarg); break;
+		case 'h': print_usage(); break;
+		case 'v': nl_cli_print_version(); break;
+		case 'i': nl_cli_exp_parse_id(exp, optarg); break;
+		case ARG_EXPECT_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_EXPECT_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_EXPECT_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_EXPECT_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_EXPECT_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
+		case ARG_MASTER_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASTER_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASTER_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASTER_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case ARG_MASTER_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
+		case 'F': nl_cli_exp_parse_family(exp, optarg); break;
+		case ARG_TIMEOUT: nl_cli_exp_parse_timeout(exp, optarg); break;
+		case ARG_HELPER_NAME: nl_cli_exp_parse_helper_name(exp, optarg); break;
+		case ARG_FLAGS: nl_cli_exp_parse_flags(exp, optarg); break;
+		}
+ 	}
+
+	sock = nl_cli_alloc_socket();
+	nl_cli_connect(sock, NETLINK_NETFILTER);
+	exp_cache = nl_cli_exp_alloc_cache(sock);
+
+	nl_cache_dump_filter(exp_cache, &params, OBJ_CAST(exp));
+
+	return 0;
+}