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freebsd-dev/sys/netinet/sctp_uio.h
Michael Tuexen f0396ad15e Add support for the SCTP_PR_STREAM_STATUS and SCTP_PR_ASSOC_STATUS 
socket options. This includes managing the correspoing stat counters.
Add the SCTP_DETAILED_STR_STATS kernel option to control per policy
counters on every stream. The default is off and only an aggregated
counter is available. This is sufficient for the RTCWeb usecase.

MFC after: 1 week
2014-08-13 15:50:16 +00:00

1327 lines
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/*-
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifndef _NETINET_SCTP_UIO_H_
#define _NETINET_SCTP_UIO_H_
#if ! defined(_KERNEL)
#include <stdint.h>
#endif
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
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 {
uint16_t sinit_num_ostreams;
uint16_t sinit_max_instreams;
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;
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;
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 four bits 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 SCTP_PR_SCTP_MAX SCTP_PR_SCTP_RTX
#define SCTP_PR_SCTP_ALL 0x000f/* Used for aggregated stats */
#define PR_SCTP_POLICY(x) ((x) & 0x0f)
#define PR_SCTP_ENABLED(x) ((PR_SCTP_POLICY(x) != SCTP_PR_SCTP_NONE) && \
(PR_SCTP_POLICY(x) != SCTP_PR_SCTP_ALL))
#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_MAX)
#define PR_SCTP_VALID_POLICY(x) (PR_SCTP_POLICY(x) <= SCTP_PR_SCTP_MAX)
/* 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;
};
/* 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[];
};
/* 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_prstatus {
sctp_assoc_t sprstat_assoc_id;
uint16_t sprstat_sid;
uint16_t sprstat_policy;
uint64_t sprstat_abandoned_unsent;
uint64_t sprstat_abandoned_sent;
};
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)
union sctp_sockstore {
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
struct sockaddr sa;
};
/***********************************/
/* And something for us old timers */
/***********************************/
#ifndef ntohll
#include <sys/endian.h>
#define ntohll(x) be64toh(x)
#endif
#ifndef htonll
#include <sys/endian.h>
#define htonll(x) htobe64(x)
#endif
/***********************************/
struct xsctp_inpcb {
uint32_t last;
uint32_t flags;
uint64_t features;
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;
uint32_t extra_padding[31]; /* future */
};
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 */
uint32_t peers_rwnd;
sctp_assoc_t assoc_id; /* sctpAssocEntry 1 */
uint32_t extra_padding[32]; /* future */
};
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 */
uint32_t rtt;
uint32_t heartbeat_interval;
uint32_t extra_padding[31]; /* future */
};
#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,
struct mbuf *i_pak,
struct mbuf *control,
int flags,
struct sctp_sndrcvinfo *srcv
,struct thread *p
);
int
sctp_sorecvmsg(struct socket *so,
struct uio *uio,
struct mbuf **mp,
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
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 *);
__END_DECLS
#endif /* !_KERNEL */
#endif /* !__sctp_uio_h__ */
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