diff --git a/usrsctplib/netinet/sctp.h b/usrsctplib/netinet/sctp.h
new file mode 100755
index 0000000..276cade
--- /dev/null
+++ b/usrsctplib/netinet/sctp.h
@@ -0,0 +1,667 @@
+/*-
+ * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
+ * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * a) Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * b) Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the distribution.
+ *
+ * c) Neither the name of Cisco Systems, Inc. nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef __FreeBSD__
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: head/sys/netinet/sctp.h 297662 2016-04-07 09:10:34Z rrs $");
+#endif
+
+#ifndef _NETINET_SCTP_H_
+#define _NETINET_SCTP_H_
+
+#if (defined(__APPLE__) || defined(__Userspace_os_Linux) || defined(__Userspace_os_Darwin))
+#include <stdint.h>
+#endif
+
+#include <sys/types.h>
+
+
+#if !defined(__Userspace_os_Windows)
+#define SCTP_PACKED __attribute__((packed))
+#else
+#pragma pack (push, 1)
+#define SCTP_PACKED
+#endif
+
+/*
+ * SCTP protocol - RFC4960.
+ */
+struct sctphdr {
+	uint16_t src_port;	/* source port */
+	uint16_t dest_port;	/* destination port */
+	uint32_t v_tag;		/* verification tag of packet */
+	uint32_t checksum;	/* CRC32C checksum */
+	/* chunks follow... */
+} SCTP_PACKED;
+
+/*
+ * SCTP Chunks
+ */
+struct sctp_chunkhdr {
+	uint8_t chunk_type;	/* chunk type */
+	uint8_t chunk_flags;	/* chunk flags */
+	uint16_t chunk_length;	/* chunk length */
+	/* optional params follow */
+} SCTP_PACKED;
+
+/*
+ * SCTP chunk parameters
+ */
+struct sctp_paramhdr {
+	uint16_t param_type;	/* parameter type */
+	uint16_t param_length;	/* parameter length */
+} SCTP_PACKED;
+
+/*
+ * user socket options: socket API defined
+ */
+/*
+ * read-write options
+ */
+#define SCTP_RTOINFO			0x00000001
+#define SCTP_ASSOCINFO			0x00000002
+#define SCTP_INITMSG			0x00000003
+#define SCTP_NODELAY			0x00000004
+#define SCTP_AUTOCLOSE			0x00000005
+#define SCTP_SET_PEER_PRIMARY_ADDR	0x00000006
+#define SCTP_PRIMARY_ADDR		0x00000007
+#define SCTP_ADAPTATION_LAYER		0x00000008
+/* same as above */
+#define SCTP_ADAPTION_LAYER		0x00000008
+#define SCTP_DISABLE_FRAGMENTS		0x00000009
+#define SCTP_PEER_ADDR_PARAMS 		0x0000000a
+#define SCTP_DEFAULT_SEND_PARAM		0x0000000b
+/* ancillary data/notification interest options */
+#define SCTP_EVENTS			0x0000000c /* deprecated */
+/* Without this applied we will give V4 and V6 addresses on a V6 socket */
+#define SCTP_I_WANT_MAPPED_V4_ADDR	0x0000000d
+#define SCTP_MAXSEG 			0x0000000e
+#define SCTP_DELAYED_SACK               0x0000000f
+#define SCTP_FRAGMENT_INTERLEAVE        0x00000010
+#define SCTP_PARTIAL_DELIVERY_POINT     0x00000011
+/* authentication support */
+#define SCTP_AUTH_CHUNK 		0x00000012
+#define SCTP_AUTH_KEY 			0x00000013
+#define SCTP_HMAC_IDENT 		0x00000014
+#define SCTP_AUTH_ACTIVE_KEY 		0x00000015
+#define SCTP_AUTH_DELETE_KEY 		0x00000016
+#define SCTP_USE_EXT_RCVINFO		0x00000017
+#define SCTP_AUTO_ASCONF		0x00000018 /* rw */
+#define SCTP_MAXBURST			0x00000019 /* rw */
+#define SCTP_MAX_BURST			0x00000019 /* rw */
+/* assoc level context */
+#define SCTP_CONTEXT                    0x0000001a /* rw */
+/* explicit EOR signalling */
+#define SCTP_EXPLICIT_EOR               0x0000001b
+#define SCTP_REUSE_PORT                 0x0000001c /* rw */
+#define SCTP_AUTH_DEACTIVATE_KEY	0x0000001d
+#define SCTP_EVENT                      0x0000001e
+#define SCTP_RECVRCVINFO                0x0000001f
+#define SCTP_RECVNXTINFO                0x00000020
+#define SCTP_DEFAULT_SNDINFO            0x00000021
+#define SCTP_DEFAULT_PRINFO             0x00000022
+#define SCTP_PEER_ADDR_THLDS            0x00000023
+#define SCTP_REMOTE_UDP_ENCAPS_PORT     0x00000024
+#define SCTP_ECN_SUPPORTED              0x00000025
+#define SCTP_PR_SUPPORTED               0x00000026
+#define SCTP_AUTH_SUPPORTED             0x00000027
+#define SCTP_ASCONF_SUPPORTED           0x00000028
+#define SCTP_RECONFIG_SUPPORTED         0x00000029
+#define SCTP_NRSACK_SUPPORTED           0x00000030
+#define SCTP_PKTDROP_SUPPORTED          0x00000031
+#define SCTP_MAX_CWND                   0x00000032
+
+/*
+ * read-only options
+ */
+#define SCTP_STATUS			0x00000100
+#define SCTP_GET_PEER_ADDR_INFO		0x00000101
+/* authentication support */
+#define SCTP_PEER_AUTH_CHUNKS 		0x00000102
+#define SCTP_LOCAL_AUTH_CHUNKS 		0x00000103
+#define SCTP_GET_ASSOC_NUMBER           0x00000104 /* ro */
+#define SCTP_GET_ASSOC_ID_LIST          0x00000105 /* ro */
+#define SCTP_TIMEOUTS                   0x00000106
+#define SCTP_PR_STREAM_STATUS           0x00000107
+#define SCTP_PR_ASSOC_STATUS            0x00000108
+
+/*
+ * user socket options: BSD implementation specific
+ */
+/*
+ * Blocking I/O is enabled on any TCP type socket by default. For the UDP
+ * model if this is turned on then the socket buffer is shared for send
+ * resources amongst all associations.  The default for the UDP model is that
+ * is SS_NBIO is set.  Which means all associations have a separate send
+ * limit BUT they will NOT ever BLOCK instead you will get an error back
+ * EAGAIN if you try to send too much. If you want the blocking semantics you
+ * set this option at the cost of sharing one socket send buffer size amongst
+ * all associations. Peeled off sockets turn this option off and block. But
+ * since both TCP and peeled off sockets have only one assoc per socket this
+ * is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP
+ * model OR peeled off UDP model, but we do allow you to do so. You just use
+ * the normal syscall to toggle SS_NBIO the way you want.
+ *
+ * Blocking I/O is controlled by the SS_NBIO flag on the socket state so_state
+ * field.
+ */
+
+#define SCTP_ENABLE_STREAM_RESET	0x00000900 /* struct sctp_assoc_value */
+#define SCTP_RESET_STREAMS		0x00000901 /* struct sctp_reset_streams */
+#define SCTP_RESET_ASSOC		0x00000902 /* sctp_assoc_t */
+#define SCTP_ADD_STREAMS		0x00000903 /* struct sctp_add_streams */
+
+/* For enable stream reset */
+#define SCTP_ENABLE_RESET_STREAM_REQ 	0x00000001
+#define SCTP_ENABLE_RESET_ASSOC_REQ 	0x00000002
+#define SCTP_ENABLE_CHANGE_ASSOC_REQ 	0x00000004
+#define SCTP_ENABLE_VALUE_MASK		0x00000007
+/* For reset streams */
+#define SCTP_STREAM_RESET_INCOMING	0x00000001
+#define SCTP_STREAM_RESET_OUTGOING	0x00000002
+
+
+/* here on down are more implementation specific */
+#define SCTP_SET_DEBUG_LEVEL		0x00001005
+#define SCTP_CLR_STAT_LOG               0x00001007
+/* CMT ON/OFF socket option */
+#define SCTP_CMT_ON_OFF                 0x00001200
+#define SCTP_CMT_USE_DAC                0x00001201
+/* JRS - Pluggable Congestion Control Socket option */
+#define SCTP_PLUGGABLE_CC               0x00001202
+/* RS - Pluggable Stream Scheduling Socket option */
+#define SCTP_PLUGGABLE_SS		0x00001203
+#define SCTP_SS_VALUE			0x00001204
+#define SCTP_CC_OPTION			0x00001205 /* Options for CC modules */
+/* For I-DATA */
+#define SCTP_INTERLEAVING_SUPPORTED	0x00001206
+
+/* read only */
+#define SCTP_GET_SNDBUF_USE		0x00001101
+#define SCTP_GET_STAT_LOG		0x00001103
+#define SCTP_PCB_STATUS			0x00001104
+#define SCTP_GET_NONCE_VALUES           0x00001105
+
+
+/* Special hook for dynamically setting primary for all assoc's,
+ * this is a write only option that requires root privilege.
+ */
+#define SCTP_SET_DYNAMIC_PRIMARY        0x00002001
+
+/* VRF (virtual router feature) and multi-VRF support
+ * options. VRF's provide splits within a router
+ * that give the views of multiple routers. A
+ * standard host, without VRF support, is just
+ * a single VRF. If VRF's are supported then
+ * the transport must be VRF aware. This means
+ * that every socket call coming in must be directed
+ * within the endpoint to one of the VRF's it belongs
+ * to. The endpoint, before binding, may select
+ * the "default" VRF it is in by using a set socket
+ * option with SCTP_VRF_ID. This will also
+ * get propagated to the default VRF. Once the
+ * endpoint binds an address then it CANNOT add
+ * additional VRF's to become a Multi-VRF endpoint.
+ *
+ * Before BINDING additional VRF's can be added with
+ * the SCTP_ADD_VRF_ID call or deleted with
+ * SCTP_DEL_VRF_ID.
+ *
+ * Associations are ALWAYS contained inside a single
+ * VRF. They cannot reside in two (or more) VRF's. Incoming
+ * packets, assuming the router is VRF aware, can always
+ * tell us what VRF they arrived on. A host not supporting
+ * any VRF's will find that the packets always arrived on the
+ * single VRF that the host has.
+ *
+ */
+
+#define SCTP_VRF_ID			0x00003001
+#define SCTP_ADD_VRF_ID			0x00003002
+#define SCTP_GET_VRF_IDS		0x00003003
+#define SCTP_GET_ASOC_VRF               0x00003004
+#define SCTP_DEL_VRF_ID                 0x00003005
+
+/*
+ * If you enable packet logging you can get
+ * a poor mans ethereal output in binary
+ * form. Note this is a compile option to
+ * the kernel,  SCTP_PACKET_LOGGING, and
+ * without it in your kernel you
+ * will get a EOPNOTSUPP
+ */
+#define SCTP_GET_PACKET_LOG             0x00004001
+
+/*
+ * hidden implementation specific options these are NOT user visible (should
+ * move out of sctp.h)
+ */
+/* sctp_bindx() flags as hidden socket options */
+#define SCTP_BINDX_ADD_ADDR		0x00008001
+#define SCTP_BINDX_REM_ADDR		0x00008002
+/* Hidden socket option that gets the addresses */
+#define SCTP_GET_PEER_ADDRESSES		0x00008003
+#define SCTP_GET_LOCAL_ADDRESSES	0x00008004
+/* return the total count in bytes needed to hold all local addresses bound */
+#define SCTP_GET_LOCAL_ADDR_SIZE	0x00008005
+/* Return the total count in bytes needed to hold the remote address */
+#define SCTP_GET_REMOTE_ADDR_SIZE	0x00008006
+/* hidden option for connectx */
+#define SCTP_CONNECT_X			0x00008007
+/* hidden option for connectx_delayed, part of sendx */
+#define SCTP_CONNECT_X_DELAYED		0x00008008
+#define SCTP_CONNECT_X_COMPLETE         0x00008009
+/* hidden socket option based sctp_peeloff */
+#define SCTP_PEELOFF                    0x0000800a
+/* the real worker for sctp_getaddrlen() */
+#define SCTP_GET_ADDR_LEN               0x0000800b
+#if defined(__APPLE__)
+/* temporary workaround for Apple listen() issue, no args used */
+#define SCTP_LISTEN_FIX			0x0000800c
+#endif
+#if defined(__Windows__)
+/* workaround for Cygwin on Windows: returns the SOCKET handle */
+#define SCTP_GET_HANDLE			0x0000800d
+#endif
+/* Debug things that need to be purged */
+#define SCTP_SET_INITIAL_DBG_SEQ	0x00009f00
+
+/* JRS - Supported congestion control modules for pluggable
+ * congestion control
+ */
+/* Standard TCP Congestion Control */
+#define SCTP_CC_RFC2581		0x00000000
+/* High Speed TCP Congestion Control (Floyd) */
+#define SCTP_CC_HSTCP		0x00000001
+/* HTCP Congestion Control */
+#define SCTP_CC_HTCP		0x00000002
+/* RTCC Congestion Control - RFC2581 plus */
+#define SCTP_CC_RTCC            0x00000003
+
+#define SCTP_CC_OPT_RTCC_SETMODE	0x00002000
+#define SCTP_CC_OPT_USE_DCCC_ECN	0x00002001
+#define SCTP_CC_OPT_STEADY_STEP         0x00002002
+
+#define SCTP_CMT_OFF            0
+#define SCTP_CMT_BASE           1
+#define SCTP_CMT_RPV1           2
+#define SCTP_CMT_RPV2           3
+#define SCTP_CMT_MPTCP          4
+#define SCTP_CMT_MAX            SCTP_CMT_MPTCP
+
+/* RS - Supported stream scheduling modules for pluggable
+ * stream scheduling
+ */
+/* Default simple round-robin */
+#define SCTP_SS_DEFAULT			0x00000000
+/* Real round-robin */
+#define SCTP_SS_ROUND_ROBIN		0x00000001
+/* Real round-robin per packet */
+#define SCTP_SS_ROUND_ROBIN_PACKET	0x00000002
+/* Priority */
+#define SCTP_SS_PRIORITY		0x00000003
+/* Fair Bandwidth */
+#define SCTP_SS_FAIR_BANDWITH		0x00000004
+/* First-come, first-serve */
+#define SCTP_SS_FIRST_COME		0x00000005
+
+
+/* fragment interleave constants
+ * setting must be one of these or
+ * EINVAL returned.
+ */
+#define SCTP_FRAG_LEVEL_0    0x00000000
+#define SCTP_FRAG_LEVEL_1    0x00000001
+#define SCTP_FRAG_LEVEL_2    0x00000002
+
+/*
+ * user state values
+ */
+#define SCTP_CLOSED			0x0000
+#define SCTP_BOUND			0x1000
+#define SCTP_LISTEN			0x2000
+#define SCTP_COOKIE_WAIT		0x0002
+#define SCTP_COOKIE_ECHOED		0x0004
+#define SCTP_ESTABLISHED		0x0008
+#define SCTP_SHUTDOWN_SENT		0x0010
+#define SCTP_SHUTDOWN_RECEIVED		0x0020
+#define SCTP_SHUTDOWN_ACK_SENT		0x0040
+#define SCTP_SHUTDOWN_PENDING		0x0080
+
+/*
+ * SCTP operational error codes (user visible)
+ */
+#define SCTP_CAUSE_NO_ERROR		0x0000
+#define SCTP_CAUSE_INVALID_STREAM	0x0001
+#define SCTP_CAUSE_MISSING_PARAM	0x0002
+#define SCTP_CAUSE_STALE_COOKIE		0x0003
+#define SCTP_CAUSE_OUT_OF_RESC		0x0004
+#define SCTP_CAUSE_UNRESOLVABLE_ADDR	0x0005
+#define SCTP_CAUSE_UNRECOG_CHUNK	0x0006
+#define SCTP_CAUSE_INVALID_PARAM	0x0007
+#define SCTP_CAUSE_UNRECOG_PARAM	0x0008
+#define SCTP_CAUSE_NO_USER_DATA		0x0009
+#define SCTP_CAUSE_COOKIE_IN_SHUTDOWN	0x000a
+#define SCTP_CAUSE_RESTART_W_NEWADDR	0x000b
+#define SCTP_CAUSE_USER_INITIATED_ABT	0x000c
+#define SCTP_CAUSE_PROTOCOL_VIOLATION	0x000d
+
+/* Error causes from RFC5061 */
+#define SCTP_CAUSE_DELETING_LAST_ADDR	0x00a0
+#define SCTP_CAUSE_RESOURCE_SHORTAGE	0x00a1
+#define SCTP_CAUSE_DELETING_SRC_ADDR	0x00a2
+#define SCTP_CAUSE_ILLEGAL_ASCONF_ACK	0x00a3
+#define SCTP_CAUSE_REQUEST_REFUSED	0x00a4
+
+/* Error causes from nat-draft */
+#define SCTP_CAUSE_NAT_COLLIDING_STATE  0x00b0
+#define SCTP_CAUSE_NAT_MISSING_STATE    0x00b1
+
+/* Error causes from RFC4895 */
+#define SCTP_CAUSE_UNSUPPORTED_HMACID	0x0105
+
+/*
+ * error cause parameters (user visible)
+ */
+struct sctp_gen_error_cause {
+	uint16_t code;
+	uint16_t length;
+	uint8_t info[];
+} SCTP_PACKED;
+
+struct sctp_error_cause {
+	uint16_t code;
+	uint16_t length;
+	/* optional cause-specific info may follow */
+} SCTP_PACKED;
+
+struct sctp_error_invalid_stream {
+	struct sctp_error_cause cause;	/* code=SCTP_CAUSE_INVALID_STREAM */
+	uint16_t stream_id;	/* stream id of the DATA in error */
+	uint16_t reserved;
+} SCTP_PACKED;
+
+struct sctp_error_missing_param {
+	struct sctp_error_cause cause;	/* code=SCTP_CAUSE_MISSING_PARAM */
+	uint32_t num_missing_params;	/* number of missing parameters */
+	uint16_t type[];
+} SCTP_PACKED;
+
+struct sctp_error_stale_cookie {
+	struct sctp_error_cause cause;	/* code=SCTP_CAUSE_STALE_COOKIE */
+	uint32_t stale_time;	/* time in usec of staleness */
+} SCTP_PACKED;
+
+struct sctp_error_out_of_resource {
+	struct sctp_error_cause cause;	/* code=SCTP_CAUSE_OUT_OF_RESOURCES */
+} SCTP_PACKED;
+
+struct sctp_error_unresolv_addr {
+	struct sctp_error_cause cause;	/* code=SCTP_CAUSE_UNRESOLVABLE_ADDR */
+} SCTP_PACKED;
+
+struct sctp_error_unrecognized_chunk {
+	struct sctp_error_cause cause;	/* code=SCTP_CAUSE_UNRECOG_CHUNK */
+	struct sctp_chunkhdr ch;/* header from chunk in error */
+} SCTP_PACKED;
+
+struct sctp_error_no_user_data {
+	struct sctp_error_cause cause;	/* code=SCTP_CAUSE_NO_USER_DATA */
+	uint32_t tsn;			/* TSN of the empty data chunk */
+} SCTP_PACKED;
+
+struct sctp_error_auth_invalid_hmac {
+	struct sctp_error_cause cause;	/* code=SCTP_CAUSE_UNSUPPORTED_HMACID */
+	uint16_t hmac_id;
+} SCTP_PACKED;
+
+/*
+ * Main SCTP chunk types we place these here so natd and f/w's in user land
+ * can find them.
+ */
+/************0x00 series ***********/
+#define SCTP_DATA		0x00
+#define SCTP_INITIATION		0x01
+#define SCTP_INITIATION_ACK	0x02
+#define SCTP_SELECTIVE_ACK	0x03
+#define SCTP_HEARTBEAT_REQUEST	0x04
+#define SCTP_HEARTBEAT_ACK	0x05
+#define SCTP_ABORT_ASSOCIATION	0x06
+#define SCTP_SHUTDOWN		0x07
+#define SCTP_SHUTDOWN_ACK	0x08
+#define SCTP_OPERATION_ERROR	0x09
+#define SCTP_COOKIE_ECHO	0x0a
+#define SCTP_COOKIE_ACK		0x0b
+#define SCTP_ECN_ECHO		0x0c
+#define SCTP_ECN_CWR		0x0d
+#define SCTP_SHUTDOWN_COMPLETE	0x0e
+/* RFC4895 */
+#define SCTP_AUTHENTICATION     0x0f
+/* EY nr_sack chunk id*/
+#define SCTP_NR_SELECTIVE_ACK	0x10
+/************0x40 series ***********/
+#define SCTP_IDATA		0x40
+/************0x80 series ***********/
+/* RFC5061 */
+#define	SCTP_ASCONF_ACK		0x80
+/* draft-ietf-stewart-pktdrpsctp */
+#define SCTP_PACKET_DROPPED	0x81
+/* draft-ietf-stewart-strreset-xxx */
+#define SCTP_STREAM_RESET       0x82
+
+/* RFC4820                         */
+#define SCTP_PAD_CHUNK          0x84
+/************0xc0 series ***********/
+/* RFC3758 */
+#define SCTP_FORWARD_CUM_TSN	0xc0
+/* RFC5061 */
+#define SCTP_ASCONF		0xc1
+#define SCTP_IFORWARD_CUM_TSN	0xc2
+
+/* ABORT and SHUTDOWN COMPLETE FLAG */
+#define SCTP_HAD_NO_TCB		0x01
+
+/* Packet dropped flags */
+#define SCTP_FROM_MIDDLE_BOX	SCTP_HAD_NO_TCB
+#define SCTP_BADCRC		0x02
+#define SCTP_PACKET_TRUNCATED	0x04
+
+/* Flag for ECN -CWR */
+#define SCTP_CWR_REDUCE_OVERRIDE 0x01
+#define SCTP_CWR_IN_SAME_WINDOW  0x02
+
+#define SCTP_SAT_NETWORK_MIN	400	/* min ms for RTT to set satellite
+					 * time */
+#define SCTP_SAT_NETWORK_BURST_INCR  2	/* how many times to multiply maxburst
+					 * in sat */
+
+/* Data Chuck Specific Flags */
+#define SCTP_DATA_FRAG_MASK        0x03
+#define SCTP_DATA_MIDDLE_FRAG      0x00
+#define SCTP_DATA_LAST_FRAG        0x01
+#define SCTP_DATA_FIRST_FRAG       0x02
+#define SCTP_DATA_NOT_FRAG         0x03
+#define SCTP_DATA_UNORDERED        0x04
+#define SCTP_DATA_SACK_IMMEDIATELY 0x08
+/* ECN Nonce: SACK Chunk Specific Flags */
+#define SCTP_SACK_NONCE_SUM        0x01
+
+/* CMT DAC algorithm SACK flag */
+#define SCTP_SACK_CMT_DAC          0x80
+
+/*
+ * PCB flags (in sctp_flags bitmask).
+ * Note the features and flags are meant
+ * for use by netstat.
+ */
+#define SCTP_PCB_FLAGS_UDPTYPE		0x00000001
+#define SCTP_PCB_FLAGS_TCPTYPE		0x00000002
+#define SCTP_PCB_FLAGS_BOUNDALL		0x00000004
+#define SCTP_PCB_FLAGS_ACCEPTING	0x00000008
+#define SCTP_PCB_FLAGS_UNBOUND		0x00000010
+#define SCTP_PCB_FLAGS_CLOSE_IP         0x00040000
+#define SCTP_PCB_FLAGS_WAS_CONNECTED    0x00080000
+#define SCTP_PCB_FLAGS_WAS_ABORTED      0x00100000
+/* TCP model support */
+
+#define SCTP_PCB_FLAGS_CONNECTED	0x00200000
+#define SCTP_PCB_FLAGS_IN_TCPPOOL	0x00400000
+#define SCTP_PCB_FLAGS_DONT_WAKE	0x00800000
+#define SCTP_PCB_FLAGS_WAKEOUTPUT	0x01000000
+#define SCTP_PCB_FLAGS_WAKEINPUT	0x02000000
+#define SCTP_PCB_FLAGS_BOUND_V6		0x04000000
+#define SCTP_PCB_FLAGS_BLOCKING_IO	0x08000000
+#define SCTP_PCB_FLAGS_SOCKET_GONE	0x10000000
+#define SCTP_PCB_FLAGS_SOCKET_ALLGONE	0x20000000
+#define SCTP_PCB_FLAGS_SOCKET_CANT_READ	0x40000000
+#if defined(__Userspace__)
+#define SCTP_PCB_FLAGS_BOUND_CONN       0x80000000
+
+/* flags to copy to new PCB */
+#define SCTP_PCB_COPY_FLAGS		(SCTP_PCB_FLAGS_BOUNDALL|\
+					 SCTP_PCB_FLAGS_WAKEINPUT|\
+					 SCTP_PCB_FLAGS_BOUND_V6|\
+					 SCTP_PCB_FLAGS_BOUND_CONN)
+#else
+
+/* flags to copy to new PCB */
+#define SCTP_PCB_COPY_FLAGS		(SCTP_PCB_FLAGS_BOUNDALL|\
+					 SCTP_PCB_FLAGS_WAKEINPUT|\
+					 SCTP_PCB_FLAGS_BOUND_V6)
+#endif
+
+/*
+ * PCB Features (in sctp_features bitmask)
+ */
+#define SCTP_PCB_FLAGS_DO_NOT_PMTUD      0x0000000000000001
+#define SCTP_PCB_FLAGS_EXT_RCVINFO       0x0000000000000002 /* deprecated */
+#define SCTP_PCB_FLAGS_DONOT_HEARTBEAT   0x0000000000000004
+#define SCTP_PCB_FLAGS_FRAG_INTERLEAVE   0x0000000000000008
+#define SCTP_PCB_FLAGS_INTERLEAVE_STRMS  0x0000000000000010
+#define SCTP_PCB_FLAGS_DO_ASCONF         0x0000000000000020
+#define SCTP_PCB_FLAGS_AUTO_ASCONF       0x0000000000000040
+#define SCTP_PCB_FLAGS_ZERO_COPY_ACTIVE  0x0000000000000080
+/* socket options */
+#define SCTP_PCB_FLAGS_NODELAY           0x0000000000000100
+#define SCTP_PCB_FLAGS_AUTOCLOSE         0x0000000000000200
+#define SCTP_PCB_FLAGS_RECVDATAIOEVNT    0x0000000000000400 /* deprecated */
+#define SCTP_PCB_FLAGS_RECVASSOCEVNT     0x0000000000000800
+#define SCTP_PCB_FLAGS_RECVPADDREVNT     0x0000000000001000
+#define SCTP_PCB_FLAGS_RECVPEERERR       0x0000000000002000
+#define SCTP_PCB_FLAGS_RECVSENDFAILEVNT  0x0000000000004000 /* deprecated */
+#define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT  0x0000000000008000
+#define SCTP_PCB_FLAGS_ADAPTATIONEVNT    0x0000000000010000
+#define SCTP_PCB_FLAGS_PDAPIEVNT         0x0000000000020000
+#define SCTP_PCB_FLAGS_AUTHEVNT          0x0000000000040000
+#define SCTP_PCB_FLAGS_STREAM_RESETEVNT  0x0000000000080000
+#define SCTP_PCB_FLAGS_NO_FRAGMENT       0x0000000000100000
+#define SCTP_PCB_FLAGS_EXPLICIT_EOR      0x0000000000400000
+#define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4   0x0000000000800000
+#define SCTP_PCB_FLAGS_MULTIPLE_ASCONFS  0x0000000001000000
+#define SCTP_PCB_FLAGS_PORTREUSE         0x0000000002000000
+#define SCTP_PCB_FLAGS_DRYEVNT           0x0000000004000000
+#define SCTP_PCB_FLAGS_RECVRCVINFO       0x0000000008000000
+#define SCTP_PCB_FLAGS_RECVNXTINFO       0x0000000010000000
+#define SCTP_PCB_FLAGS_ASSOC_RESETEVNT   0x0000000020000000
+#define SCTP_PCB_FLAGS_STREAM_CHANGEEVNT 0x0000000040000000
+#define SCTP_PCB_FLAGS_RECVNSENDFAILEVNT 0x0000000080000000
+
+/*-
+ * mobility_features parameters (by micchie).Note
+ * these features are applied against the
+ * sctp_mobility_features flags.. not the sctp_features
+ * flags.
+ */
+#define SCTP_MOBILITY_BASE               0x00000001
+#define SCTP_MOBILITY_FASTHANDOFF        0x00000002
+#define SCTP_MOBILITY_PRIM_DELETED       0x00000004
+
+
+#define SCTP_SMALLEST_PMTU 512	 /* smallest pmtu allowed when disabling PMTU discovery */
+
+#if defined(__Userspace_os_Windows)
+#pragma pack()
+#endif
+#undef SCTP_PACKED
+
+#include <netinet/sctp_uio.h>
+
+/* This dictates the size of the packet
+ * collection buffer. This only applies
+ * if SCTP_PACKET_LOGGING is enabled in
+ * your config.
+ */
+#define SCTP_PACKET_LOG_SIZE 65536
+
+/* Maximum delays and such a user can set for options that
+ * take ms.
+ */
+#define SCTP_MAX_SACK_DELAY 500 /* per RFC4960 */
+#define SCTP_MAX_HB_INTERVAL 14400000 /* 4 hours in ms */
+#define SCTP_MAX_COOKIE_LIFE  3600000 /* 1 hour in ms */
+
+
+/* Types of logging/KTR tracing  that can be enabled via the
+ * sysctl net.inet.sctp.sctp_logging. You must also enable
+ * SUBSYS tracing.
+ * Note that you must have the SCTP option in the kernel
+ * to enable these as well.
+ */
+#define SCTP_BLK_LOGGING_ENABLE				0x00000001
+#define SCTP_CWND_MONITOR_ENABLE			0x00000002
+#define SCTP_CWND_LOGGING_ENABLE			0x00000004
+#define SCTP_FLIGHT_LOGGING_ENABLE			0x00000020
+#define SCTP_FR_LOGGING_ENABLE				0x00000040
+#define SCTP_LOCK_LOGGING_ENABLE			0x00000080
+#define SCTP_MAP_LOGGING_ENABLE				0x00000100
+#define SCTP_MBCNT_LOGGING_ENABLE			0x00000200
+#define SCTP_MBUF_LOGGING_ENABLE			0x00000400
+#define SCTP_NAGLE_LOGGING_ENABLE			0x00000800
+#define SCTP_RECV_RWND_LOGGING_ENABLE			0x00001000
+#define SCTP_RTTVAR_LOGGING_ENABLE			0x00002000
+#define SCTP_SACK_LOGGING_ENABLE			0x00004000
+#define SCTP_SACK_RWND_LOGGING_ENABLE			0x00008000
+#define SCTP_SB_LOGGING_ENABLE				0x00010000
+#define SCTP_STR_LOGGING_ENABLE				0x00020000
+#define SCTP_WAKE_LOGGING_ENABLE			0x00040000
+#define SCTP_LOG_MAXBURST_ENABLE			0x00080000
+#define SCTP_LOG_RWND_ENABLE    			0x00100000
+#define SCTP_LOG_SACK_ARRIVALS_ENABLE			0x00200000
+#define SCTP_LTRACE_CHUNK_ENABLE			0x00400000
+#define SCTP_LTRACE_ERROR_ENABLE			0x00800000
+#define SCTP_LAST_PACKET_TRACING			0x01000000
+#define SCTP_THRESHOLD_LOGGING				0x02000000
+#define SCTP_LOG_AT_SEND_2_SCTP				0x04000000
+#define SCTP_LOG_AT_SEND_2_OUTQ				0x08000000
+#define SCTP_LOG_TRY_ADVANCE				0x10000000
+
+#endif				/* !_NETINET_SCTP_H_ */