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freebsd-skq/sys/netinet/sctp_uio.h
tuexen 9db28b75f0 MFC r269945: 
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.
2014-08-22 20:26:20 +00:00

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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;
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_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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