The Tor Browser / file revision

 /*-

  * Copyright (c) 2001-2007, 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_uio.h 255160 2013-09-02 22:48:41Z tuexen $");

 #endif

 #ifndef _NETINET_SCTP_UIO_H_

 #define _NETINET_SCTP_UIO_H_

 #if (defined(__APPLE__) && defined(KERNEL))

 #ifndef _KERNEL

 #define _KERNEL

 #endif

 #endif

 #if !(defined(__Windows__)) && !defined(__Userspace_os_Windows)

 #if ! defined(_KERNEL)

 #include <stdint.h>

 #endif

 #include <sys/types.h>

 #include <sys/socket.h>

 #include <netinet/in.h>

 #endif

 #if defined(__Windows__)

 #pragma warning(push)

 #pragma warning(disable: 4200)

 #if defined(_KERNEL)

 #include <sys/types.h>

 #include <sys/socket.h>

 #include <netinet/in.h>

 #endif

 #endif

 typedef uint32_t sctp_assoc_t;

 #define SCTP_FUTURE_ASSOC  0

 #define SCTP_CURRENT_ASSOC 1

 #define SCTP_ALL_ASSOC     2

 struct sctp_event {

 	sctp_assoc_t se_assoc_id;

 	uint16_t     se_type;

 	uint8_t      se_on;

 };

 /* Compatibility to previous define's */

 #define sctp_stream_reset_events sctp_stream_reset_event

 /* On/Off setup for subscription to events */

 struct sctp_event_subscribe {

 	uint8_t sctp_data_io_event;

 	uint8_t sctp_association_event;

 	uint8_t sctp_address_event;

 	uint8_t sctp_send_failure_event;

 	uint8_t sctp_peer_error_event;

 	uint8_t sctp_shutdown_event;

 	uint8_t sctp_partial_delivery_event;

 	uint8_t sctp_adaptation_layer_event;

 	uint8_t sctp_authentication_event;

 	uint8_t sctp_sender_dry_event;

 	uint8_t sctp_stream_reset_event;

 };

 /* ancillary data types */

 #define SCTP_INIT	0x0001

 #define SCTP_SNDRCV	0x0002

 #define SCTP_EXTRCV	0x0003

 #define SCTP_SNDINFO    0x0004

 #define SCTP_RCVINFO    0x0005

 #define SCTP_NXTINFO    0x0006

 #define SCTP_PRINFO     0x0007

 #define SCTP_AUTHINFO   0x0008

 #define SCTP_DSTADDRV4  0x0009

 #define SCTP_DSTADDRV6  0x000a

 /*

  * ancillary data structures

  */

 struct sctp_initmsg {

 #if defined(__FreeBSD__) && __FreeBSD_version < 800000

 	/* This is a bug. Not fixed for ABI compatibility */

 	uint32_t sinit_num_ostreams;

 	uint32_t sinit_max_instreams;

 #else

 	uint16_t sinit_num_ostreams;

 	uint16_t sinit_max_instreams;

 #endif

 	uint16_t sinit_max_attempts;

 	uint16_t sinit_max_init_timeo;

 };

 /* We add 96 bytes to the size of sctp_sndrcvinfo.

  * This makes the current structure 128 bytes long

  * which is nicely 64 bit aligned but also has room

  * for us to add more and keep ABI compatibility.

  * For example, already we have the sctp_extrcvinfo

  * when enabled which is 48 bytes.

  */

 /*

  * The assoc up needs a verfid

  * all sendrcvinfo's need a verfid for SENDING only.

  */

 #define SCTP_ALIGN_RESV_PAD 92

 #define SCTP_ALIGN_RESV_PAD_SHORT 76

 struct sctp_sndrcvinfo {

 	uint16_t sinfo_stream;

 	uint16_t sinfo_ssn;

 	uint16_t sinfo_flags;

 #if defined(__FreeBSD__) && __FreeBSD_version < 800000

 	uint16_t sinfo_pr_policy;

 #endif

 	uint32_t sinfo_ppid;

 	uint32_t sinfo_context;

 	uint32_t sinfo_timetolive;

 	uint32_t sinfo_tsn;

 	uint32_t sinfo_cumtsn;

 	sctp_assoc_t sinfo_assoc_id;

 	uint16_t sinfo_keynumber;

 	uint16_t sinfo_keynumber_valid;

 	uint8_t  __reserve_pad[SCTP_ALIGN_RESV_PAD];

 };

 struct sctp_extrcvinfo {

 	uint16_t sinfo_stream;

 	uint16_t sinfo_ssn;

 	uint16_t sinfo_flags;

 #if defined(__FreeBSD__) && __FreeBSD_version < 800000

 	uint16_t sinfo_pr_policy;

 #endif

 	uint32_t sinfo_ppid;

 	uint32_t sinfo_context;

 	uint32_t sinfo_timetolive;

 	uint32_t sinfo_tsn;

 	uint32_t sinfo_cumtsn;

 	sctp_assoc_t sinfo_assoc_id;

 	uint16_t sreinfo_next_flags;

 	uint16_t sreinfo_next_stream;

 	uint32_t sreinfo_next_aid;

 	uint32_t sreinfo_next_length;

 	uint32_t sreinfo_next_ppid;

 	uint16_t sinfo_keynumber;

 	uint16_t sinfo_keynumber_valid;

 	uint8_t  __reserve_pad[SCTP_ALIGN_RESV_PAD_SHORT];

 };

 struct sctp_sndinfo {

 	uint16_t snd_sid;

 	uint16_t snd_flags;

 	uint32_t snd_ppid;

 	uint32_t snd_context;

 	sctp_assoc_t snd_assoc_id;

 };

 struct sctp_prinfo {

 	uint16_t pr_policy;

 	uint32_t pr_value;

 };

 struct sctp_default_prinfo {

 	uint16_t pr_policy;

 	uint32_t pr_value;

 	sctp_assoc_t pr_assoc_id;

 };

 struct sctp_authinfo {

 	uint16_t auth_keynumber;

 };

 struct sctp_rcvinfo {

 	uint16_t rcv_sid;

 	uint16_t rcv_ssn;

 	uint16_t rcv_flags;

 	uint32_t rcv_ppid;

 	uint32_t rcv_tsn;

 	uint32_t rcv_cumtsn;

 	uint32_t rcv_context;

 	sctp_assoc_t rcv_assoc_id;

 };

 struct sctp_nxtinfo {

 	uint16_t nxt_sid;

 	uint16_t nxt_flags;

 	uint32_t nxt_ppid;

 	uint32_t nxt_length;

 	sctp_assoc_t nxt_assoc_id;

 };

 #define SCTP_NO_NEXT_MSG           0x0000

 #define SCTP_NEXT_MSG_AVAIL        0x0001

 #define SCTP_NEXT_MSG_ISCOMPLETE   0x0002

 #define SCTP_NEXT_MSG_IS_UNORDERED 0x0004

 #define SCTP_NEXT_MSG_IS_NOTIFICATION 0x0008

 struct sctp_recvv_rn {

 	struct sctp_rcvinfo recvv_rcvinfo;

 	struct sctp_nxtinfo recvv_nxtinfo;

 };

 #define SCTP_RECVV_NOINFO  0

 #define SCTP_RECVV_RCVINFO 1

 #define SCTP_RECVV_NXTINFO 2

 #define SCTP_RECVV_RN      3

 #define SCTP_SENDV_NOINFO   0

 #define SCTP_SENDV_SNDINFO  1

 #define SCTP_SENDV_PRINFO   2

 #define SCTP_SENDV_AUTHINFO 3

 #define SCTP_SENDV_SPA      4

 struct sctp_sendv_spa {

 	uint32_t sendv_flags;

 	struct sctp_sndinfo sendv_sndinfo;

 	struct sctp_prinfo sendv_prinfo;

 	struct sctp_authinfo sendv_authinfo;

 };

 #define SCTP_SEND_SNDINFO_VALID  0x00000001

 #define SCTP_SEND_PRINFO_VALID   0x00000002

 #define SCTP_SEND_AUTHINFO_VALID 0x00000004

 struct sctp_snd_all_completes {

 	uint16_t sall_stream;

 	uint16_t sall_flags;

 	uint32_t sall_ppid;

 	uint32_t sall_context;

 	uint32_t sall_num_sent;

 	uint32_t sall_num_failed;

 };

 /* Flags that go into the sinfo->sinfo_flags field */

 #define SCTP_NOTIFICATION     0x0010 /* next message is a notification */

 #define SCTP_COMPLETE         0x0020 /* next message is complete */

 #define SCTP_EOF              0x0100 /* Start shutdown procedures */

 #define SCTP_ABORT            0x0200 /* Send an ABORT to peer */

 #define SCTP_UNORDERED        0x0400 /* Message is un-ordered */

 #define SCTP_ADDR_OVER        0x0800 /* Override the primary-address */

 #define SCTP_SENDALL          0x1000 /* Send this on all associations */

 #define SCTP_EOR              0x2000 /* end of message signal */

 #define SCTP_SACK_IMMEDIATELY 0x4000 /* Set I-Bit */

 #define INVALID_SINFO_FLAG(x) (((x) & 0xfffffff0 \

                                     & ~(SCTP_EOF | SCTP_ABORT | SCTP_UNORDERED |\

 				        SCTP_ADDR_OVER | SCTP_SENDALL | SCTP_EOR |\

 					SCTP_SACK_IMMEDIATELY)) != 0)

 /* for the endpoint */

 /* The lower byte is an enumeration of PR-SCTP policies */

 #define SCTP_PR_SCTP_NONE 0x0000 /* Reliable transfer */

 #define SCTP_PR_SCTP_TTL  0x0001 /* Time based PR-SCTP */

 #define SCTP_PR_SCTP_BUF  0x0002 /* Buffer based PR-SCTP */

 #define SCTP_PR_SCTP_RTX  0x0003 /* Number of retransmissions based PR-SCTP */

 #define PR_SCTP_POLICY(x)         ((x) & 0x0f)

 #define PR_SCTP_ENABLED(x)        (PR_SCTP_POLICY(x) != SCTP_PR_SCTP_NONE)

 #define PR_SCTP_TTL_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_TTL)

 #define PR_SCTP_BUF_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_BUF)

 #define PR_SCTP_RTX_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_RTX)

 #define PR_SCTP_INVALID_POLICY(x) (PR_SCTP_POLICY(x) > SCTP_PR_SCTP_RTX)

 /* Stat's */

 struct sctp_pcbinfo {

 	uint32_t ep_count;

 	uint32_t asoc_count;

 	uint32_t laddr_count;

 	uint32_t raddr_count;

 	uint32_t chk_count;

 	uint32_t readq_count;

 	uint32_t free_chunks;

 	uint32_t stream_oque;

 };

 struct sctp_sockstat {

 	sctp_assoc_t ss_assoc_id;

 	uint32_t ss_total_sndbuf;

 	uint32_t ss_total_recv_buf;

 };

 /*

  * notification event structures

  */

 /*

  * association change event

  */

 struct sctp_assoc_change {

 	uint16_t sac_type;

 	uint16_t sac_flags;

 	uint32_t sac_length;

 	uint16_t sac_state;

 	uint16_t sac_error;

 	uint16_t sac_outbound_streams;

 	uint16_t sac_inbound_streams;

 	sctp_assoc_t sac_assoc_id;

 	uint8_t sac_info[];

 };

 /* sac_state values */

 #define SCTP_COMM_UP            0x0001

 #define SCTP_COMM_LOST          0x0002

 #define SCTP_RESTART            0x0003

 #define SCTP_SHUTDOWN_COMP      0x0004

 #define SCTP_CANT_STR_ASSOC     0x0005

 /* sac_info values */

 #define SCTP_ASSOC_SUPPORTS_PR        0x01

 #define SCTP_ASSOC_SUPPORTS_AUTH      0x02

 #define SCTP_ASSOC_SUPPORTS_ASCONF    0x03

 #define SCTP_ASSOC_SUPPORTS_MULTIBUF  0x04

 #define SCTP_ASSOC_SUPPORTS_RE_CONFIG 0x05

 #define SCTP_ASSOC_SUPPORTS_MAX       0x05

 /*

  * Address event

  */

 struct sctp_paddr_change {

 	uint16_t spc_type;

 	uint16_t spc_flags;

 	uint32_t spc_length;

 	struct sockaddr_storage spc_aaddr;

 	uint32_t spc_state;

 	uint32_t spc_error;

 	sctp_assoc_t spc_assoc_id;

 	uint8_t spc_padding[4];

 };

 /* paddr state values */

 #define SCTP_ADDR_AVAILABLE	0x0001

 #define SCTP_ADDR_UNREACHABLE	0x0002

 #define SCTP_ADDR_REMOVED	0x0003

 #define SCTP_ADDR_ADDED		0x0004

 #define SCTP_ADDR_MADE_PRIM	0x0005

 #define SCTP_ADDR_CONFIRMED	0x0006

 #define SCTP_ACTIVE		0x0001	/* SCTP_ADDR_REACHABLE */

 #define SCTP_INACTIVE		0x0002	/* neither SCTP_ADDR_REACHABLE

 					   nor SCTP_ADDR_UNCONFIRMED */

 #define SCTP_UNCONFIRMED	0x0200	/* SCTP_ADDR_UNCONFIRMED */

 /* remote error events */

 struct sctp_remote_error {

 	uint16_t sre_type;

 	uint16_t sre_flags;

 	uint32_t sre_length;

 	uint16_t sre_error;

 	sctp_assoc_t sre_assoc_id;

 	uint8_t sre_data[4];

 };

 /* data send failure event (deprecated) */

 struct sctp_send_failed {

 	uint16_t ssf_type;

 	uint16_t ssf_flags;

 	uint32_t ssf_length;

 	uint32_t ssf_error;

 	struct sctp_sndrcvinfo ssf_info;

 	sctp_assoc_t ssf_assoc_id;

 	uint8_t ssf_data[];

 };

 /* data send failure event (not deprecated) */

 struct sctp_send_failed_event {

 	uint16_t ssfe_type;

 	uint16_t ssfe_flags;

 	uint32_t ssfe_length;

 	uint32_t ssfe_error;

 	struct sctp_sndinfo ssfe_info;

 	sctp_assoc_t ssfe_assoc_id;

 	uint8_t  ssfe_data[];

 };

 /* flag that indicates state of data */

 #define SCTP_DATA_UNSENT	0x0001	/* inqueue never on wire */

 #define SCTP_DATA_SENT		0x0002	/* on wire at failure */

 /* shutdown event */

 struct sctp_shutdown_event {

 	uint16_t sse_type;

 	uint16_t sse_flags;

 	uint32_t sse_length;

 	sctp_assoc_t sse_assoc_id;

 };

 /* Adaptation layer indication stuff */

 struct sctp_adaptation_event {

 	uint16_t sai_type;

 	uint16_t sai_flags;

 	uint32_t sai_length;

 	uint32_t sai_adaptation_ind;

 	sctp_assoc_t sai_assoc_id;

 };

 struct sctp_setadaptation {

 	uint32_t ssb_adaptation_ind;

 };

 /* compatible old spelling */

 struct sctp_adaption_event {

 	uint16_t sai_type;

 	uint16_t sai_flags;

 	uint32_t sai_length;

 	uint32_t sai_adaption_ind;

 	sctp_assoc_t sai_assoc_id;

 };

 struct sctp_setadaption {

 	uint32_t ssb_adaption_ind;

 };

 /*

  * Partial Delivery API event

  */

 struct sctp_pdapi_event {

 	uint16_t pdapi_type;

 	uint16_t pdapi_flags;

 	uint32_t pdapi_length;

 	uint32_t pdapi_indication;

 	uint16_t pdapi_stream;

 	uint16_t pdapi_seq;

 	sctp_assoc_t pdapi_assoc_id;

 };

 /* indication values */

 #define SCTP_PARTIAL_DELIVERY_ABORTED	0x0001

 /*

  * authentication key event

  */

 struct sctp_authkey_event {

 	uint16_t auth_type;

 	uint16_t auth_flags;

 	uint32_t auth_length;

 	uint16_t auth_keynumber;

 	uint16_t auth_altkeynumber;

 	uint32_t auth_indication;

 	sctp_assoc_t auth_assoc_id;

 };

 /* indication values */

 #define SCTP_AUTH_NEW_KEY	0x0001

 #define SCTP_AUTH_NEWKEY	SCTP_AUTH_NEW_KEY

 #define SCTP_AUTH_NO_AUTH	0x0002

 #define SCTP_AUTH_FREE_KEY	0x0003

 struct sctp_sender_dry_event {

 	uint16_t sender_dry_type;

 	uint16_t sender_dry_flags;

 	uint32_t sender_dry_length;

 	sctp_assoc_t sender_dry_assoc_id;

 };

 /*

  * Stream reset event - subscribe to SCTP_STREAM_RESET_EVENT

  */

 struct sctp_stream_reset_event {

 	uint16_t strreset_type;

 	uint16_t strreset_flags;

 	uint32_t strreset_length;

 	sctp_assoc_t strreset_assoc_id;

 	uint16_t strreset_stream_list[];

 };

 /* flags in stream_reset_event (strreset_flags) */

 #define SCTP_STREAM_RESET_INCOMING_SSN  0x0001

 #define SCTP_STREAM_RESET_OUTGOING_SSN  0x0002

 #define SCTP_STREAM_RESET_DENIED        0x0004

 #define SCTP_STREAM_RESET_FAILED        0x0008

 /*

  * Assoc reset event - subscribe to SCTP_ASSOC_RESET_EVENT

  */

 struct sctp_assoc_reset_event {

 	uint16_t 	assocreset_type;

 	uint16_t	assocreset_flags;

 	uint32_t	assocreset_length;

 	sctp_assoc_t	assocreset_assoc_id;

 	uint32_t	assocreset_local_tsn;

 	uint32_t	assocreset_remote_tsn;

 };

 #define SCTP_ASSOC_RESET_DENIED		0x0004

 #define SCTP_ASSOC_RESET_FAILED		0x0008

 /*

  * Stream change event - subscribe to SCTP_STREAM_CHANGE_EVENT

  */

 struct sctp_stream_change_event {

 	uint16_t	strchange_type;

 	uint16_t	strchange_flags;

 	uint32_t	strchange_length;

 	sctp_assoc_t	strchange_assoc_id;

 	uint16_t	strchange_instrms;

 	uint16_t	strchange_outstrms;

 };

 #define SCTP_STREAM_CHANGE_DENIED	0x0004

 #define SCTP_STREAM_CHANGE_FAILED	0x0008

 /* SCTP notification event */

 struct sctp_tlv {

 	uint16_t sn_type;

 	uint16_t sn_flags;

 	uint32_t sn_length;

 };

 union sctp_notification {

 	struct sctp_tlv sn_header;

 	struct sctp_assoc_change sn_assoc_change;

 	struct sctp_paddr_change sn_paddr_change;

 	struct sctp_remote_error sn_remote_error;

 	struct sctp_send_failed sn_send_failed;

 	struct sctp_shutdown_event sn_shutdown_event;

 	struct sctp_adaptation_event sn_adaptation_event;

 	/* compatibility same as above */

 	struct sctp_adaption_event sn_adaption_event;

 	struct sctp_pdapi_event sn_pdapi_event;

 	struct sctp_authkey_event sn_auth_event;

 	struct sctp_sender_dry_event sn_sender_dry_event;

 	struct sctp_send_failed_event sn_send_failed_event;

 	struct sctp_stream_reset_event sn_strreset_event;

 	struct sctp_assoc_reset_event  sn_assocreset_event;

 	struct sctp_stream_change_event sn_strchange_event;

 };

 /* notification types */

 #define SCTP_ASSOC_CHANGE                       0x0001

 #define SCTP_PEER_ADDR_CHANGE                   0x0002

 #define SCTP_REMOTE_ERROR                       0x0003

 #define SCTP_SEND_FAILED                        0x0004

 #define SCTP_SHUTDOWN_EVENT                     0x0005

 #define SCTP_ADAPTATION_INDICATION              0x0006

 /* same as above */

 #define SCTP_ADAPTION_INDICATION                0x0006

 #define SCTP_PARTIAL_DELIVERY_EVENT             0x0007

 #define SCTP_AUTHENTICATION_EVENT               0x0008

 #define SCTP_STREAM_RESET_EVENT                 0x0009

 #define SCTP_SENDER_DRY_EVENT                   0x000a

 #define SCTP_NOTIFICATIONS_STOPPED_EVENT        0x000b /* we don't send this*/

 #define SCTP_ASSOC_RESET_EVENT                  0x000c

 #define SCTP_STREAM_CHANGE_EVENT                0x000d

 #define SCTP_SEND_FAILED_EVENT                  0x000e

 /*

  * socket option structs

  */

 struct sctp_paddrparams {

 	struct sockaddr_storage spp_address;

 	sctp_assoc_t spp_assoc_id;

 	uint32_t spp_hbinterval;

 	uint32_t spp_pathmtu;

 	uint32_t spp_flags;

 	uint32_t spp_ipv6_flowlabel;

 	uint16_t spp_pathmaxrxt;

 	uint8_t spp_dscp;

 };

 #define spp_ipv4_tos spp_dscp

 #define SPP_HB_ENABLE		0x00000001

 #define SPP_HB_DISABLE		0x00000002

 #define SPP_HB_DEMAND		0x00000004

 #define SPP_PMTUD_ENABLE	0x00000008

 #define SPP_PMTUD_DISABLE	0x00000010

 #define SPP_HB_TIME_IS_ZERO     0x00000080

 #define SPP_IPV6_FLOWLABEL      0x00000100

 #define SPP_DSCP                0x00000200

 #define SPP_IPV4_TOS            SPP_DSCP

 struct sctp_paddrthlds {

 	struct sockaddr_storage spt_address;

 	sctp_assoc_t spt_assoc_id;

 	uint16_t spt_pathmaxrxt;

 	uint16_t spt_pathpfthld;

 };

 struct sctp_paddrinfo {

 	struct sockaddr_storage spinfo_address;

 	sctp_assoc_t spinfo_assoc_id;

 	int32_t spinfo_state;

 	uint32_t spinfo_cwnd;

 	uint32_t spinfo_srtt;

 	uint32_t spinfo_rto;

 	uint32_t spinfo_mtu;

 };

 struct sctp_rtoinfo {

 	sctp_assoc_t srto_assoc_id;

 	uint32_t srto_initial;

 	uint32_t srto_max;

 	uint32_t srto_min;

 };

 struct sctp_assocparams {

 	sctp_assoc_t sasoc_assoc_id;

 	uint32_t sasoc_peer_rwnd;

 	uint32_t sasoc_local_rwnd;

 	uint32_t sasoc_cookie_life;

 	uint16_t sasoc_asocmaxrxt;

 	uint16_t sasoc_number_peer_destinations;

 };

 struct sctp_setprim {

 	struct sockaddr_storage ssp_addr;

 	sctp_assoc_t ssp_assoc_id;

 	uint8_t ssp_padding[4];

 };

 struct sctp_setpeerprim {

 	struct sockaddr_storage sspp_addr;

 	sctp_assoc_t sspp_assoc_id;

 	uint8_t sspp_padding[4];

 };

 struct sctp_getaddresses {

 	sctp_assoc_t sget_assoc_id;

 	/* addr is filled in for N * sockaddr_storage */

 	struct sockaddr addr[1];

 };

 struct sctp_status {

 	sctp_assoc_t sstat_assoc_id;

 	int32_t sstat_state;

 	uint32_t sstat_rwnd;

 	uint16_t sstat_unackdata;

 	uint16_t sstat_penddata;

 	uint16_t sstat_instrms;

 	uint16_t sstat_outstrms;

 	uint32_t sstat_fragmentation_point;

 	struct sctp_paddrinfo sstat_primary;

 };

 /*

  * AUTHENTICATION support

  */

 /* SCTP_AUTH_CHUNK */

 struct sctp_authchunk {

 	uint8_t sauth_chunk;

 };

 /* SCTP_AUTH_KEY */

 struct sctp_authkey {

 	sctp_assoc_t sca_assoc_id;

 	uint16_t sca_keynumber;

 	uint16_t sca_keylength;

 	uint8_t sca_key[];

 };

 /* SCTP_HMAC_IDENT */

 struct sctp_hmacalgo {

 	uint32_t shmac_number_of_idents;

 	uint16_t shmac_idents[];

 };

 /* AUTH hmac_id */

 #define SCTP_AUTH_HMAC_ID_RSVD		0x0000

 #define SCTP_AUTH_HMAC_ID_SHA1		0x0001	/* default, mandatory */

 #define SCTP_AUTH_HMAC_ID_SHA256	0x0003

 /* SCTP_AUTH_ACTIVE_KEY / SCTP_AUTH_DELETE_KEY */

 struct sctp_authkeyid {

 	sctp_assoc_t scact_assoc_id;

 	uint16_t scact_keynumber;

 };

 /* SCTP_PEER_AUTH_CHUNKS / SCTP_LOCAL_AUTH_CHUNKS */

 struct sctp_authchunks {

 	sctp_assoc_t gauth_assoc_id;

 	uint32_t gauth_number_of_chunks;

 	uint8_t gauth_chunks[];

 };

 struct sctp_assoc_value {

 	sctp_assoc_t assoc_id;

 	uint32_t assoc_value;

 };

 struct sctp_cc_option {

 	int option;

 	struct sctp_assoc_value aid_value;

 };

 struct sctp_stream_value {

 	sctp_assoc_t assoc_id;

 	uint16_t stream_id;

 	uint16_t stream_value;

 };

 struct sctp_assoc_ids {

 	uint32_t gaids_number_of_ids;

 	sctp_assoc_t gaids_assoc_id[];

 };

 struct sctp_sack_info {

 	sctp_assoc_t sack_assoc_id;

 	uint32_t sack_delay;

 	uint32_t sack_freq;

 };

 struct sctp_timeouts {

 	sctp_assoc_t stimo_assoc_id;

 	uint32_t stimo_init;

 	uint32_t stimo_data;

 	uint32_t stimo_sack;

 	uint32_t stimo_shutdown;

 	uint32_t stimo_heartbeat;

 	uint32_t stimo_cookie;

 	uint32_t stimo_shutdownack;

 };

 struct sctp_udpencaps {

 	struct sockaddr_storage sue_address;

 	sctp_assoc_t sue_assoc_id;

 	uint16_t sue_port;

 };

 struct sctp_cwnd_args {

 	struct sctp_nets *net;	/* network to */ /* FIXME: LP64 issue */

 	uint32_t cwnd_new_value;/* cwnd in k */

 	uint32_t pseudo_cumack;

 	uint16_t inflight;	/* flightsize in k */

 	uint16_t cwnd_augment;	/* increment to it */

 	uint8_t meets_pseudo_cumack;

 	uint8_t need_new_pseudo_cumack;

 	uint8_t cnt_in_send;

 	uint8_t cnt_in_str;

 };

 struct sctp_blk_args {

 	uint32_t onsb;		/* in 1k bytes */

 	uint32_t sndlen;	/* len of send being attempted */

 	uint32_t peer_rwnd;	/* rwnd of peer */

 	uint16_t send_sent_qcnt;/* chnk cnt */

 	uint16_t stream_qcnt;	/* chnk cnt */

 	uint16_t chunks_on_oque;/* chunks out */

 	uint16_t flight_size;   /* flight size in k */

 };

 /*

  * Max we can reset in one setting, note this is dictated not by the define

  * but the size of a mbuf cluster so don't change this define and think you

  * can specify more. You must do multiple resets if you want to reset more

  * than SCTP_MAX_EXPLICIT_STR_RESET.

  */

 #define SCTP_MAX_EXPLICT_STR_RESET   1000

 struct sctp_reset_streams {

 	sctp_assoc_t srs_assoc_id;

 	uint16_t srs_flags;

 	uint16_t srs_number_streams;	/* 0 == ALL */

 	uint16_t srs_stream_list[];/* list if strrst_num_streams is not 0 */

 };

 struct sctp_add_streams {

 	sctp_assoc_t	sas_assoc_id;

 	uint16_t	sas_instrms;

 	uint16_t	sas_outstrms;

 };

 struct sctp_get_nonce_values {

 	sctp_assoc_t gn_assoc_id;

 	uint32_t gn_peers_tag;

 	uint32_t gn_local_tag;

 };

 /* Debugging logs */

 struct sctp_str_log {

 	void *stcb; /* FIXME: LP64 issue */

 	uint32_t n_tsn;

 	uint32_t e_tsn;

 	uint16_t n_sseq;

 	uint16_t e_sseq;

 	uint16_t strm;

 };

 struct sctp_sb_log {

 	void  *stcb; /* FIXME: LP64 issue */

 	uint32_t so_sbcc;

 	uint32_t stcb_sbcc;

 	uint32_t incr;

 };

 struct sctp_fr_log {

 	uint32_t largest_tsn;

 	uint32_t largest_new_tsn;

 	uint32_t tsn;

 };

 struct sctp_fr_map {

 	uint32_t base;

 	uint32_t cum;

 	uint32_t high;

 };

 struct sctp_rwnd_log {

 	uint32_t rwnd;

 	uint32_t send_size;

 	uint32_t overhead;

 	uint32_t new_rwnd;

 };

 struct sctp_mbcnt_log {

 	uint32_t total_queue_size;

 	uint32_t size_change;

 	uint32_t total_queue_mb_size;

 	uint32_t mbcnt_change;

 };

 struct sctp_sack_log {

 	uint32_t cumack;

 	uint32_t oldcumack;

 	uint32_t tsn;

 	uint16_t numGaps;

 	uint16_t numDups;

 };

 struct sctp_lock_log {

 	void *sock;  /* FIXME: LP64 issue */

 	void *inp; /* FIXME: LP64 issue */

 	uint8_t tcb_lock;

 	uint8_t inp_lock;

 	uint8_t info_lock;

 	uint8_t sock_lock;

 	uint8_t sockrcvbuf_lock;

 	uint8_t socksndbuf_lock;

 	uint8_t create_lock;

 	uint8_t resv;

 };

 struct sctp_rto_log {

 	void * net; /* FIXME: LP64 issue */

 	uint32_t rtt;

 };

 struct sctp_nagle_log {

 	void  *stcb; /* FIXME: LP64 issue */

 	uint32_t total_flight;

 	uint32_t total_in_queue;

 	uint16_t count_in_queue;

 	uint16_t count_in_flight;

 };

 struct sctp_sbwake_log {

 	void *stcb; /* FIXME: LP64 issue */

 	uint16_t send_q;

 	uint16_t sent_q;

 	uint16_t flight;

 	uint16_t wake_cnt;

 	uint8_t stream_qcnt;	/* chnk cnt */

 	uint8_t chunks_on_oque;/* chunks out */

 	uint8_t sbflags;

 	uint8_t sctpflags;

 };

 struct sctp_misc_info {

 	uint32_t log1;

 	uint32_t log2;

 	uint32_t log3;

 	uint32_t log4;

 };

 struct sctp_log_closing {

 	void *inp; /* FIXME: LP64 issue */

 	void *stcb;  /* FIXME: LP64 issue */

 	uint32_t sctp_flags;

 	uint16_t  state;

 	int16_t  loc;

 };

 struct sctp_mbuf_log {

 	struct mbuf *mp; /* FIXME: LP64 issue */

 	caddr_t  ext;

 	caddr_t  data;

 	uint16_t size;

 	uint8_t  refcnt;

 	uint8_t  mbuf_flags;

 };

 struct sctp_cwnd_log {

 	uint64_t time_event;

 	uint8_t  from;

 	uint8_t  event_type;

 	uint8_t  resv[2];

 	union {

 		struct sctp_log_closing close;

 		struct sctp_blk_args blk;

 		struct sctp_cwnd_args cwnd;

 		struct sctp_str_log strlog;

 		struct sctp_fr_log fr;

 		struct sctp_fr_map map;

 		struct sctp_rwnd_log rwnd;

 		struct sctp_mbcnt_log mbcnt;

 		struct sctp_sack_log sack;

 		struct sctp_lock_log lock;

 		struct sctp_rto_log rto;

 		struct sctp_sb_log sb;

 		struct sctp_nagle_log nagle;

 		struct sctp_sbwake_log wake;

 		struct sctp_mbuf_log mb;

 		struct sctp_misc_info misc;

 	}     x;

 };

 struct sctp_cwnd_log_req {

 	int32_t num_in_log;		/* Number in log */

 	int32_t num_ret;		/* Number returned */

 	int32_t start_at;		/* start at this one */

 	int32_t end_at;		        /* end at this one */

 	struct sctp_cwnd_log log[];

 };

 struct sctp_timeval {

 	uint32_t tv_sec;

 	uint32_t tv_usec;

 };

 struct sctpstat {

 	struct sctp_timeval sctps_discontinuitytime; /* sctpStats 18 (TimeStamp) */

 	/* MIB according to RFC 3873 */

 	uint32_t  sctps_currestab;           /* sctpStats  1   (Gauge32) */

 	uint32_t  sctps_activeestab;         /* sctpStats  2 (Counter32) */

 	uint32_t  sctps_restartestab;

 	uint32_t  sctps_collisionestab;

 	uint32_t  sctps_passiveestab;        /* sctpStats  3 (Counter32) */

 	uint32_t  sctps_aborted;             /* sctpStats  4 (Counter32) */

 	uint32_t  sctps_shutdown;            /* sctpStats  5 (Counter32) */

 	uint32_t  sctps_outoftheblue;        /* sctpStats  6 (Counter32) */

 	uint32_t  sctps_checksumerrors;      /* sctpStats  7 (Counter32) */

 	uint32_t  sctps_outcontrolchunks;    /* sctpStats  8 (Counter64) */

 	uint32_t  sctps_outorderchunks;      /* sctpStats  9 (Counter64) */

 	uint32_t  sctps_outunorderchunks;    /* sctpStats 10 (Counter64) */

 	uint32_t  sctps_incontrolchunks;     /* sctpStats 11 (Counter64) */

 	uint32_t  sctps_inorderchunks;       /* sctpStats 12 (Counter64) */

 	uint32_t  sctps_inunorderchunks;     /* sctpStats 13 (Counter64) */

 	uint32_t  sctps_fragusrmsgs;         /* sctpStats 14 (Counter64) */

 	uint32_t  sctps_reasmusrmsgs;        /* sctpStats 15 (Counter64) */

 	uint32_t  sctps_outpackets;          /* sctpStats 16 (Counter64) */

 	uint32_t  sctps_inpackets;           /* sctpStats 17 (Counter64) */

 	/* input statistics: */

 	uint32_t  sctps_recvpackets;         /* total input packets        */

 	uint32_t  sctps_recvdatagrams;       /* total input datagrams      */

 	uint32_t  sctps_recvpktwithdata;     /* total packets that had data */

 	uint32_t  sctps_recvsacks;           /* total input SACK chunks    */

 	uint32_t  sctps_recvdata;            /* total input DATA chunks    */

 	uint32_t  sctps_recvdupdata;         /* total input duplicate DATA chunks */

 	uint32_t  sctps_recvheartbeat;       /* total input HB chunks      */

 	uint32_t  sctps_recvheartbeatack;    /* total input HB-ACK chunks  */

 	uint32_t  sctps_recvecne;            /* total input ECNE chunks    */

 	uint32_t  sctps_recvauth;            /* total input AUTH chunks    */

 	uint32_t  sctps_recvauthmissing;     /* total input chunks missing AUTH */

 	uint32_t  sctps_recvivalhmacid;      /* total number of invalid HMAC ids received */

 	uint32_t  sctps_recvivalkeyid;       /* total number of invalid secret ids received */

 	uint32_t  sctps_recvauthfailed;      /* total number of auth failed */

 	uint32_t  sctps_recvexpress;         /* total fast path receives all one chunk */

 	uint32_t  sctps_recvexpressm;        /* total fast path multi-part data */

 	uint32_t  sctps_recvnocrc;

 	uint32_t  sctps_recvswcrc;

 	uint32_t  sctps_recvhwcrc;

 	/* output statistics: */

 	uint32_t  sctps_sendpackets;         /* total output packets       */

 	uint32_t  sctps_sendsacks;           /* total output SACKs         */

 	uint32_t  sctps_senddata;            /* total output DATA chunks   */

 	uint32_t  sctps_sendretransdata;     /* total output retransmitted DATA chunks */

 	uint32_t  sctps_sendfastretrans;     /* total output fast retransmitted DATA chunks */

 	uint32_t  sctps_sendmultfastretrans; /* total FR's that happened more than once

                                               * to same chunk (u-del multi-fr algo).

 					      */

 	uint32_t  sctps_sendheartbeat;       /* total output HB chunks     */

 	uint32_t  sctps_sendecne;            /* total output ECNE chunks    */

 	uint32_t  sctps_sendauth;            /* total output AUTH chunks FIXME   */

 	uint32_t  sctps_senderrors;	     /* ip_output error counter */

 	uint32_t  sctps_sendnocrc;

 	uint32_t  sctps_sendswcrc;

 	uint32_t  sctps_sendhwcrc;

 	/* PCKDROPREP statistics: */

 	uint32_t  sctps_pdrpfmbox;           /* Packet drop from middle box */

 	uint32_t  sctps_pdrpfehos;           /* P-drop from end host */

 	uint32_t  sctps_pdrpmbda;            /* P-drops with data */

 	uint32_t  sctps_pdrpmbct;            /* P-drops, non-data, non-endhost */

 	uint32_t  sctps_pdrpbwrpt;           /* P-drop, non-endhost, bandwidth rep only */

 	uint32_t  sctps_pdrpcrupt;           /* P-drop, not enough for chunk header */

 	uint32_t  sctps_pdrpnedat;           /* P-drop, not enough data to confirm */

 	uint32_t  sctps_pdrppdbrk;           /* P-drop, where process_chunk_drop said break */

 	uint32_t  sctps_pdrptsnnf;           /* P-drop, could not find TSN */

 	uint32_t  sctps_pdrpdnfnd;           /* P-drop, attempt reverse TSN lookup */

 	uint32_t  sctps_pdrpdiwnp;           /* P-drop, e-host confirms zero-rwnd */

 	uint32_t  sctps_pdrpdizrw;           /* P-drop, midbox confirms no space */

 	uint32_t  sctps_pdrpbadd;            /* P-drop, data did not match TSN */

 	uint32_t  sctps_pdrpmark;            /* P-drop, TSN's marked for Fast Retran */

 	/* timeouts */

 	uint32_t  sctps_timoiterator;        /* Number of iterator timers that fired */

 	uint32_t  sctps_timodata;            /* Number of T3 data time outs */

 	uint32_t  sctps_timowindowprobe;     /* Number of window probe (T3) timers that fired */

 	uint32_t  sctps_timoinit;            /* Number of INIT timers that fired */

 	uint32_t  sctps_timosack;            /* Number of sack timers that fired */

 	uint32_t  sctps_timoshutdown;        /* Number of shutdown timers that fired */

 	uint32_t  sctps_timoheartbeat;       /* Number of heartbeat timers that fired */

 	uint32_t  sctps_timocookie;          /* Number of times a cookie timeout fired */

 	uint32_t  sctps_timosecret;          /* Number of times an endpoint changed its cookie secret*/

 	uint32_t  sctps_timopathmtu;         /* Number of PMTU timers that fired */

 	uint32_t  sctps_timoshutdownack;     /* Number of shutdown ack timers that fired */

 	uint32_t  sctps_timoshutdownguard;   /* Number of shutdown guard timers that fired */

 	uint32_t  sctps_timostrmrst;         /* Number of stream reset timers that fired */

 	uint32_t  sctps_timoearlyfr;         /* Number of early FR timers that fired */

 	uint32_t  sctps_timoasconf;          /* Number of times an asconf timer fired */

 	uint32_t  sctps_timodelprim;	     /* Number of times a prim_deleted timer fired */

 	uint32_t  sctps_timoautoclose;       /* Number of times auto close timer fired */

 	uint32_t  sctps_timoassockill;       /* Number of asoc free timers expired */

 	uint32_t  sctps_timoinpkill;         /* Number of inp free timers expired */

 	/* former early FR counters */

 	uint32_t  sctps_spare[11];

 	/* others */

 	uint32_t  sctps_hdrops;	          /* packet shorter than header */

 	uint32_t  sctps_badsum;	          /* checksum error             */

 	uint32_t  sctps_noport;           /* no endpoint for port       */

 	uint32_t  sctps_badvtag;          /* bad v-tag                  */

 	uint32_t  sctps_badsid;           /* bad SID                    */

 	uint32_t  sctps_nomem;            /* no memory                  */

 	uint32_t  sctps_fastretransinrtt; /* number of multiple FR in a RTT window */

 	uint32_t  sctps_markedretrans;

 	uint32_t  sctps_naglesent;        /* nagle allowed sending      */

 	uint32_t  sctps_naglequeued;      /* nagle doesn't allow sending */

 	uint32_t  sctps_maxburstqueued;   /* max burst doesn't allow sending */

 	uint32_t  sctps_ifnomemqueued;    /* look ahead tells us no memory in

                                          * interface ring buffer OR we had a

 					 * send error and are queuing one send.

                                          */

 	uint32_t  sctps_windowprobed;     /* total number of window probes sent */

 	uint32_t  sctps_lowlevelerr;	/* total times an output error causes us

 					 * to clamp down on next user send.

 					 */

 	uint32_t  sctps_lowlevelerrusr;	/* total times sctp_senderrors were caused from

 					 * a user send from a user invoked send not

 					 * a sack response

 					 */

 	uint32_t  sctps_datadropchklmt;	/* Number of in data drops due to chunk limit reached */

 	uint32_t  sctps_datadroprwnd;	/* Number of in data drops due to rwnd limit reached */

 	uint32_t  sctps_ecnereducedcwnd;  /* Number of times a ECN reduced the cwnd */

 	uint32_t  sctps_vtagexpress;	/* Used express lookup via vtag */

 	uint32_t  sctps_vtagbogus;	/* Collision in express lookup. */

 	uint32_t  sctps_primary_randry;	/* Number of times the sender ran dry of user data on primary */

 	uint32_t  sctps_cmt_randry;       /* Same for above */

 	uint32_t  sctps_slowpath_sack;    /* Sacks the slow way */

 	uint32_t  sctps_wu_sacks_sent;	/* Window Update only sacks sent */

 	uint32_t  sctps_sends_with_flags; /* number of sends with sinfo_flags !=0 */

 	uint32_t  sctps_sends_with_unord; /* number of unordered sends */

 	uint32_t  sctps_sends_with_eof; 	/* number of sends with EOF flag set */

 	uint32_t  sctps_sends_with_abort; /* number of sends with ABORT flag set */

 	uint32_t  sctps_protocol_drain_calls;	/* number of times protocol drain called */

 	uint32_t  sctps_protocol_drains_done; 	/* number of times we did a protocol drain */

 	uint32_t  sctps_read_peeks;	/* Number of times recv was called with peek */

 	uint32_t  sctps_cached_chk;       /* Number of cached chunks used */

 	uint32_t  sctps_cached_strmoq;    /* Number of cached stream oq's used */

 	uint32_t  sctps_left_abandon;     /* Number of unread messages abandoned by close */

 	uint32_t  sctps_send_burst_avoid; /* Unused */

 	uint32_t  sctps_send_cwnd_avoid;  /* Send cwnd full  avoidance, already max burst inflight to net */

 	uint32_t  sctps_fwdtsn_map_over;  /* number of map array over-runs via fwd-tsn's */

 	uint32_t  sctps_queue_upd_ecne;  /* Number of times we queued or updated an ECN chunk on send queue */

 	uint32_t  sctps_reserved[31];     /* Future ABI compat - remove int's from here when adding new */

 };

 #define SCTP_STAT_INCR(_x) SCTP_STAT_INCR_BY(_x,1)

 #define SCTP_STAT_DECR(_x) SCTP_STAT_DECR_BY(_x,1)

 #if defined(__FreeBSD__) && defined(SMP) && defined(SCTP_USE_PERCPU_STAT)

 #define SCTP_STAT_INCR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x += _d)

 #define SCTP_STAT_DECR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x -= _d)

 #else

 #define SCTP_STAT_INCR_BY(_x,_d) atomic_add_int(&SCTP_BASE_STAT(_x), _d)

 #define SCTP_STAT_DECR_BY(_x,_d) atomic_subtract_int(&SCTP_BASE_STAT(_x), _d)

 #endif

 /* The following macros are for handling MIB values, */

 #define SCTP_STAT_INCR_COUNTER32(_x) SCTP_STAT_INCR(_x)

 #define SCTP_STAT_INCR_COUNTER64(_x) SCTP_STAT_INCR(_x)

 #define SCTP_STAT_INCR_GAUGE32(_x) SCTP_STAT_INCR(_x)

 #define SCTP_STAT_DECR_COUNTER32(_x) SCTP_STAT_DECR(_x)

 #define SCTP_STAT_DECR_COUNTER64(_x) SCTP_STAT_DECR(_x)

 #define SCTP_STAT_DECR_GAUGE32(_x) SCTP_STAT_DECR(_x)

 #if defined(__Userspace__)

 union sctp_sockstore {

 #if defined(INET)

 	struct sockaddr_in sin;

 #endif

 #if defined(INET6)

 	struct sockaddr_in6 sin6;

 #endif

 	struct sockaddr_conn sconn;

 	struct sockaddr sa;

 };

 #else

 union sctp_sockstore {

 	struct sockaddr_in sin;

 	struct sockaddr_in6 sin6;

 	struct sockaddr sa;

 };

 #endif

 /***********************************/

 /* And something for us old timers */

 /***********************************/

 #ifndef __APPLE__

 #ifndef __Userspace__

 #ifndef ntohll

 #if defined(__Userspace_os_Linux)

 #ifndef _BSD_SOURCE

 #define _BSD_SOURCE

 #endif

 #include <endian.h>

 #else

 #include <sys/endian.h>

 #endif

 #define ntohll(x) be64toh(x)

 #endif

 #ifndef htonll

 #if defined(__Userspace_os_Linux)

 #ifndef _BSD_SOURCE

 #define _BSD_SOURCE

 #endif

 #include <endian.h>

 #else

 #include <sys/endian.h>

 #endif

 #define htonll(x) htobe64(x)

 #endif

 #endif

 #endif

 /***********************************/

 struct xsctp_inpcb {

 	uint32_t last;

 	uint32_t flags;

 #if defined(__FreeBSD__) && __FreeBSD_version < 1000048

 	uint32_t features;

 #else

 	uint64_t features;

 #endif

 	uint32_t total_sends;

 	uint32_t total_recvs;

 	uint32_t total_nospaces;

 	uint32_t fragmentation_point;

 	uint16_t local_port;

 	uint16_t qlen;

 	uint16_t maxqlen;

 #if defined(__Windows__)

 	uint16_t padding;

 #endif

 #if defined(__FreeBSD__) && __FreeBSD_version < 1000048

 	uint32_t extra_padding[32]; /* future */

 #else

 	uint32_t extra_padding[31]; /* future */

 #endif

 };

 struct xsctp_tcb {

 	union sctp_sockstore primary_addr;      /* sctpAssocEntry 5/6 */

 	uint32_t last;

 	uint32_t heartbeat_interval;            /* sctpAssocEntry 7   */

 	uint32_t state;                         /* sctpAssocEntry 8   */

 	uint32_t in_streams;                    /* sctpAssocEntry 9   */

 	uint32_t out_streams;                   /* sctpAssocEntry 10  */

 	uint32_t max_nr_retrans;                /* sctpAssocEntry 11  */

 	uint32_t primary_process;               /* sctpAssocEntry 12  */

 	uint32_t T1_expireries;                 /* sctpAssocEntry 13  */

 	uint32_t T2_expireries;                 /* sctpAssocEntry 14  */

 	uint32_t retransmitted_tsns;            /* sctpAssocEntry 15  */

 	uint32_t total_sends;

 	uint32_t total_recvs;

 	uint32_t local_tag;

 	uint32_t remote_tag;

 	uint32_t initial_tsn;

 	uint32_t highest_tsn;

 	uint32_t cumulative_tsn;

 	uint32_t cumulative_tsn_ack;

 	uint32_t mtu;

 	uint32_t refcnt;

 	uint16_t local_port;                    /* sctpAssocEntry 3   */

 	uint16_t remote_port;                   /* sctpAssocEntry 4   */

 	struct sctp_timeval start_time;         /* sctpAssocEntry 16  */

 	struct sctp_timeval discontinuity_time; /* sctpAssocEntry 17  */

 #if defined(__FreeBSD__)

 #if __FreeBSD_version >= 800000

 	uint32_t peers_rwnd;

 	sctp_assoc_t assoc_id;                  /* sctpAssocEntry 1   */

 	uint32_t extra_padding[32];              /* future */

 #else

 #endif

 #else

 	uint32_t peers_rwnd;

 	sctp_assoc_t assoc_id;                  /* sctpAssocEntry 1   */

 	uint32_t extra_padding[32];              /* future */

 #endif

 };

 struct xsctp_laddr {

 	union sctp_sockstore address;    /* sctpAssocLocalAddrEntry 1/2 */

 	uint32_t last;

 	struct sctp_timeval start_time;  /* sctpAssocLocalAddrEntry 3   */

 	uint32_t extra_padding[32];       /* future */

 };

 struct xsctp_raddr {

 	union sctp_sockstore address;      /* sctpAssocLocalRemEntry 1/2 */

 	uint32_t last;

 	uint32_t rto;                      /* sctpAssocLocalRemEntry 5   */

 	uint32_t max_path_rtx;             /* sctpAssocLocalRemEntry 6   */

 	uint32_t rtx;                      /* sctpAssocLocalRemEntry 7   */

 	uint32_t error_counter;            /*                            */

 	uint32_t cwnd;                     /*                            */

 	uint32_t flight_size;              /*                            */

 	uint32_t mtu;                      /*                            */

 	uint8_t active;                    /* sctpAssocLocalRemEntry 3   */

 	uint8_t confirmed;                 /*                            */

 	uint8_t heartbeat_enabled;         /* sctpAssocLocalRemEntry 4   */

 	uint8_t potentially_failed;

 	struct sctp_timeval start_time;    /* sctpAssocLocalRemEntry 8   */

 #if defined(__FreeBSD__)

 #if __FreeBSD_version >= 800000

 	uint32_t rtt;

 	uint32_t heartbeat_interval;

 	uint32_t extra_padding[31];              /* future */

 #endif

 #else

 	uint32_t rtt;

 	uint32_t heartbeat_interval;

 	uint32_t extra_padding[31];              /* future */

 #endif

 };

 #define SCTP_MAX_LOGGING_SIZE 30000

 #define SCTP_TRACE_PARAMS 6                /* This number MUST be even   */

 struct sctp_log_entry {

 	uint64_t timestamp;

 	uint32_t subsys;

 	uint32_t padding;

 	uint32_t params[SCTP_TRACE_PARAMS];

 };

 struct sctp_log {

 	struct sctp_log_entry entry[SCTP_MAX_LOGGING_SIZE];

 	uint32_t index;

 	uint32_t padding;

 };

 /*

  * Kernel defined for sctp_send

  */

 #if defined(_KERNEL) || defined(__Userspace__)

 int

 sctp_lower_sosend(struct socket *so,

     struct sockaddr *addr,

     struct uio *uio,

 #if defined(__Panda__)

     pakhandle_type i_pak,

     pakhandle_type i_control,

 #else

     struct mbuf *i_pak,

     struct mbuf *control,

 #endif

     int flags,

     struct sctp_sndrcvinfo *srcv

 #if !(defined(__Panda__) || defined(__Userspace__))

 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000

     ,struct thread *p

 #elif defined(__Windows__)

     , PKTHREAD p

 #else

     ,struct proc *p

 #endif

 #endif

 );

 int

 sctp_sorecvmsg(struct socket *so,

     struct uio *uio,

 #if defined(__Panda__)

     particletype **mp,

 #else

     struct mbuf **mp,

 #endif

     struct sockaddr *from,

     int fromlen,

     int *msg_flags,

     struct sctp_sndrcvinfo *sinfo,

     int filling_sinfo);

 #endif

 /*

  * API system calls

  */

 #if !(defined(_KERNEL)) && !(defined(__Userspace__))

 __BEGIN_DECLS

 #if defined(__FreeBSD__) && __FreeBSD_version < 902000

 int	sctp_peeloff __P((int, sctp_assoc_t));

 int	sctp_bindx __P((int, struct sockaddr *, int, int));

 int	sctp_connectx __P((int, const struct sockaddr *, int, sctp_assoc_t *));

 int	sctp_getaddrlen __P((sa_family_t));

 int	sctp_getpaddrs __P((int, sctp_assoc_t, struct sockaddr **));

 void	sctp_freepaddrs __P((struct sockaddr *));

 int	sctp_getladdrs __P((int, sctp_assoc_t, struct sockaddr **));

 void	sctp_freeladdrs __P((struct sockaddr *));

 int	sctp_opt_info __P((int, sctp_assoc_t, int, void *, socklen_t *));

 /* deprecated */

 ssize_t	sctp_sendmsg __P((int, const void *, size_t, const struct sockaddr *,

 	    socklen_t, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t));

 /* deprecated */

 ssize_t	sctp_send __P((int, const void *, size_t,

 	    const struct sctp_sndrcvinfo *, int));

 /* deprecated */

 ssize_t	sctp_sendx __P((int, const void *, size_t, struct sockaddr *,

 	    int, struct sctp_sndrcvinfo *, int));

 /* deprecated */

 ssize_t	sctp_sendmsgx __P((int sd, const void *, size_t, struct sockaddr *,

 	    int, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t));

 sctp_assoc_t	sctp_getassocid __P((int, struct sockaddr *));

 /* deprecated */

 ssize_t	sctp_recvmsg __P((int, void *, size_t, struct sockaddr *, socklen_t *,

 	    struct sctp_sndrcvinfo *, int *));

 ssize_t	sctp_sendv __P((int, const struct iovec *, int, struct sockaddr *,

 	    int, void *, socklen_t, unsigned int, int));

 ssize_t	sctp_recvv __P((int, const struct iovec *, int, struct sockaddr *,

 	    socklen_t *, void *, socklen_t *, unsigned int *, int *));

 #else

 int	sctp_peeloff(int, sctp_assoc_t);

 int	sctp_bindx(int, struct sockaddr *, int, int);

 int	sctp_connectx(int, const struct sockaddr *, int, sctp_assoc_t *);

 int	sctp_getaddrlen(sa_family_t);

 int	sctp_getpaddrs(int, sctp_assoc_t, struct sockaddr **);

 void	sctp_freepaddrs(struct sockaddr *);

 int	sctp_getladdrs(int, sctp_assoc_t, struct sockaddr **);

 void	sctp_freeladdrs(struct sockaddr *);

 int	sctp_opt_info(int, sctp_assoc_t, int, void *, socklen_t *);

 /* deprecated */

 ssize_t	sctp_sendmsg(int, const void *, size_t, const struct sockaddr *,

 	    socklen_t, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);

 /* deprecated */

 ssize_t	sctp_send(int, const void *, size_t,

 	    const struct sctp_sndrcvinfo *, int);

 /* deprecated */

 ssize_t	sctp_sendx(int, const void *, size_t, struct sockaddr *,

 	    int, struct sctp_sndrcvinfo *, int);

 /* deprecated */

 ssize_t	sctp_sendmsgx(int sd, const void *, size_t, struct sockaddr *,

 	    int, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);

 sctp_assoc_t	sctp_getassocid(int, struct sockaddr *);

 /* deprecated */

 ssize_t	sctp_recvmsg(int, void *, size_t, struct sockaddr *, socklen_t *,

 	    struct sctp_sndrcvinfo *, int *);

 ssize_t	sctp_sendv(int, const struct iovec *, int, struct sockaddr *,

 	    int, void *, socklen_t, unsigned int, int);

 ssize_t	sctp_recvv(int, const struct iovec *, int, struct sockaddr *,

 	    socklen_t *, void *, socklen_t *, unsigned int *, int *);

 #endif

 __END_DECLS

 #endif				/* !_KERNEL */

 #endif				/* !__sctp_uio_h__ */