/*- * Copyright (c) 2009-2010 Brad Penoff * Copyright (c) 2009-2010 Humaira Kamal * Copyright (c) 2011-2012 Irene Ruengeler * Copyright (c) 2011-2012 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: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. */ #ifndef __USRSCTP_H__ #define __USRSCTP_H__ #ifdef __cplusplus extern "C" { #endif #include #include #ifdef _WIN32 #ifdef _MSC_VER #pragma warning(disable: 4200) #endif #include #include #else #include #include #endif #ifndef MSG_NOTIFICATION /* This definition MUST be in sync with usrsctplib/user_socketvar.h */ #define MSG_NOTIFICATION 0x2000 #endif #ifndef IPPROTO_SCTP /* This is the IANA assigned protocol number of SCTP. */ #define IPPROTO_SCTP 132 #endif #ifdef _WIN32 #if defined(_MSC_VER) && _MSC_VER >= 1600 #include #elif defined(SCTP_STDINT_INCLUDE) #include SCTP_STDINT_INCLUDE #else typedef unsigned __int8 uint8_t; typedef unsigned __int16 uint16_t; typedef unsigned __int32 uint32_t; typedef unsigned __int64 uint64_t; typedef __int16 int16_t; typedef __int32 int32_t; #endif #ifndef ssize_t #ifdef _WIN64 typedef __int64 ssize_t; #elif defined _WIN32 typedef int ssize_t; #else #error "Unknown platform!" #endif #endif #define MSG_EOR 0x8 #ifndef EWOULDBLOCK #define EWOULDBLOCK WSAEWOULDBLOCK #endif #ifndef EINPROGRESS #define EINPROGRESS WSAEINPROGRESS #endif #define SHUT_RD 1 #define SHUT_WR 2 #define SHUT_RDWR 3 #endif typedef uint32_t sctp_assoc_t; #if defined(_WIN32) && defined(_MSC_VER) #pragma pack (push, 1) #define SCTP_PACKED #else #define SCTP_PACKED __attribute__((packed)) #endif struct sctp_common_header { uint16_t source_port; uint16_t destination_port; uint32_t verification_tag; uint32_t crc32c; } SCTP_PACKED; #if defined(_WIN32) && defined(_MSC_VER) #pragma pack(pop) #endif #undef SCTP_PACKED #define AF_CONN 123 /* The definition of struct sockaddr_conn MUST be in * tune with other sockaddr_* structures. */ #if defined(__APPLE__) || defined(__Bitrig__) || defined(__DragonFly__) || \ defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) struct sockaddr_conn { uint8_t sconn_len; uint8_t sconn_family; uint16_t sconn_port; void *sconn_addr; }; #else struct sockaddr_conn { uint16_t sconn_family; uint16_t sconn_port; void *sconn_addr; }; #endif union sctp_sockstore { struct sockaddr_in sin; struct sockaddr_in6 sin6; struct sockaddr_conn sconn; struct sockaddr sa; }; #define SCTP_FUTURE_ASSOC 0 #define SCTP_CURRENT_ASSOC 1 #define SCTP_ALL_ASSOC 2 #define SCTP_EVENT_READ 0x0001 #define SCTP_EVENT_WRITE 0x0002 #define SCTP_EVENT_ERROR 0x0004 /*** Structures and definitions to use the socket API ***/ #define SCTP_ALIGN_RESV_PAD 92 #define SCTP_ALIGN_RESV_PAD_SHORT 76 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 #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; }; 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_authinfo { uint16_t auth_keynumber; }; struct sctp_sendv_spa { uint32_t sendv_flags; struct sctp_sndinfo sendv_sndinfo; struct sctp_prinfo sendv_prinfo; struct sctp_authinfo sendv_authinfo; }; struct sctp_udpencaps { struct sockaddr_storage sue_address; uint32_t sue_assoc_id; uint16_t sue_port; }; /******** Notifications **************/ /* 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 #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 #define SCTP_ASSOC_RESET_EVENT 0x000c #define SCTP_STREAM_CHANGE_EVENT 0x000d #define SCTP_SEND_FAILED_EVENT 0x000e /* 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[]; /* not available yet */ }; /* 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_INTERLEAVING 0x06 #define SCTP_ASSOC_SUPPORTS_MAX 0x06 /* 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 /* 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[]; }; /* 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 */ 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; }; /* Partial delivery event */ struct sctp_pdapi_event { uint16_t pdapi_type; uint16_t pdapi_flags; uint32_t pdapi_length; uint32_t pdapi_indication; uint32_t pdapi_stream; uint32_t pdapi_seq; sctp_assoc_t pdapi_assoc_id; }; /* indication values */ #define SCTP_PARTIAL_DELIVERY_ABORTED 0x0001 /* SCTP authentication event */ struct sctp_authkey_event { uint16_t auth_type; uint16_t auth_flags; uint32_t auth_length; uint16_t auth_keynumber; uint32_t auth_indication; sctp_assoc_t auth_assoc_id; }; /* indication values */ #define SCTP_AUTH_NEW_KEY 0x0001 #define SCTP_AUTH_NO_AUTH 0x0002 #define SCTP_AUTH_FREE_KEY 0x0003 /* SCTP sender dry event */ 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 /* SCTP_STRRESET_FAILED */ #define SCTP_STREAM_RESET_FAILED 0x0008 /* SCTP_STRRESET_FAILED */ #define SCTP_STREAM_CHANGED_DENIED 0x0010 #define SCTP_STREAM_RESET_INCOMING 0x00000001 #define SCTP_STREAM_RESET_OUTGOING 0x00000002 /* 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 send failed event */ 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 */ /* SCTP event option */ struct sctp_event { sctp_assoc_t se_assoc_id; uint16_t se_type; uint8_t se_on; }; union sctp_notification { struct sctp_tlv { uint16_t sn_type; uint16_t sn_flags; uint32_t sn_length; } 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_shutdown_event sn_shutdown_event; struct sctp_adaptation_event sn_adaptation_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; }; 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; }; /* Flags that go into the sinfo->sinfo_flags field */ #define SCTP_DATA_LAST_FRAG 0x0001 /* tail part of the message could not be sent */ #define SCTP_DATA_NOT_FRAG 0x0003 /* complete message could not be sent */ #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) /* * user socket options: socket API defined */ /* * read-write options */ #define SCTP_RTOINFO 0x00000001 #define SCTP_ASSOCINFO 0x00000002 #define SCTP_INITMSG 0x00000003 #define SCTP_NODELAY 0x00000004 #define SCTP_AUTOCLOSE 0x00000005 #define SCTP_PRIMARY_ADDR 0x00000007 #define SCTP_ADAPTATION_LAYER 0x00000008 #define SCTP_DISABLE_FRAGMENTS 0x00000009 #define SCTP_PEER_ADDR_PARAMS 0x0000000a /* ancillary data/notification interest options */ /* Without this applied we will give V4 and V6 addresses on a V6 socket */ #define SCTP_I_WANT_MAPPED_V4_ADDR 0x0000000d #define SCTP_MAXSEG 0x0000000e #define SCTP_DELAYED_SACK 0x0000000f #define SCTP_FRAGMENT_INTERLEAVE 0x00000010 #define SCTP_PARTIAL_DELIVERY_POINT 0x00000011 /* authentication support */ #define SCTP_HMAC_IDENT 0x00000014 #define SCTP_AUTH_ACTIVE_KEY 0x00000015 #define SCTP_AUTO_ASCONF 0x00000018 #define SCTP_MAX_BURST 0x00000019 /* assoc level context */ #define SCTP_CONTEXT 0x0000001a /* explicit EOR signalling */ #define SCTP_EXPLICIT_EOR 0x0000001b #define SCTP_REUSE_PORT 0x0000001c #define SCTP_EVENT 0x0000001e #define SCTP_RECVRCVINFO 0x0000001f #define SCTP_RECVNXTINFO 0x00000020 #define SCTP_DEFAULT_SNDINFO 0x00000021 #define SCTP_DEFAULT_PRINFO 0x00000022 #define SCTP_REMOTE_UDP_ENCAPS_PORT 0x00000024 #define SCTP_ECN_SUPPORTED 0x00000025 #define SCTP_PR_SUPPORTED 0x00000026 #define SCTP_AUTH_SUPPORTED 0x00000027 #define SCTP_ASCONF_SUPPORTED 0x00000028 #define SCTP_RECONFIG_SUPPORTED 0x00000029 #define SCTP_NRSACK_SUPPORTED 0x00000030 #define SCTP_PKTDROP_SUPPORTED 0x00000031 #define SCTP_MAX_CWND 0x00000032 #define SCTP_ENABLE_STREAM_RESET 0x00000900 /* struct sctp_assoc_value */ /* Pluggable Stream Scheduling Socket option */ #define SCTP_PLUGGABLE_SS 0x00001203 #define SCTP_SS_VALUE 0x00001204 /* * read-only options */ #define SCTP_STATUS 0x00000100 #define SCTP_GET_PEER_ADDR_INFO 0x00000101 /* authentication support */ #define SCTP_PEER_AUTH_CHUNKS 0x00000102 #define SCTP_LOCAL_AUTH_CHUNKS 0x00000103 #define SCTP_GET_ASSOC_NUMBER 0x00000104 #define SCTP_GET_ASSOC_ID_LIST 0x00000105 #define SCTP_TIMEOUTS 0x00000106 #define SCTP_PR_STREAM_STATUS 0x00000107 #define SCTP_PR_ASSOC_STATUS 0x00000108 /* * write-only options */ #define SCTP_SET_PEER_PRIMARY_ADDR 0x00000006 #define SCTP_AUTH_CHUNK 0x00000012 #define SCTP_AUTH_KEY 0x00000013 #define SCTP_AUTH_DEACTIVATE_KEY 0x0000001d #define SCTP_AUTH_DELETE_KEY 0x00000016 #define SCTP_RESET_STREAMS 0x00000901 /* struct sctp_reset_streams */ #define SCTP_RESET_ASSOC 0x00000902 /* sctp_assoc_t */ #define SCTP_ADD_STREAMS 0x00000903 /* struct sctp_add_streams */ struct sctp_initmsg { uint16_t sinit_num_ostreams; uint16_t sinit_max_instreams; uint16_t sinit_max_attempts; uint16_t sinit_max_init_timeo; }; 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_setadaptation { uint32_t ssb_adaptation_ind; }; 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_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 /* Used for SCTP_MAXSEG, SCTP_MAX_BURST, SCTP_ENABLE_STREAM_RESET, and SCTP_CONTEXT */ struct sctp_assoc_value { sctp_assoc_t assoc_id; uint32_t assoc_value; }; /* To enable stream reset */ #define SCTP_ENABLE_RESET_STREAM_REQ 0x00000001 #define SCTP_ENABLE_RESET_ASSOC_REQ 0x00000002 #define SCTP_ENABLE_CHANGE_ASSOC_REQ 0x00000004 #define SCTP_ENABLE_VALUE_MASK 0x00000007 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_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 #define SCTP_AUTH_HMAC_ID_SHA224 0x0004 #define SCTP_AUTH_HMAC_ID_SHA384 0x0005 #define SCTP_AUTH_HMAC_ID_SHA512 0x0006 struct sctp_sack_info { sctp_assoc_t sack_assoc_id; uint32_t sack_delay; uint32_t sack_freq; }; struct sctp_default_prinfo { uint16_t pr_policy; uint32_t pr_value; sctp_assoc_t pr_assoc_id; }; 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_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; }; /* * user state values */ #define SCTP_CLOSED 0x0000 #define SCTP_BOUND 0x1000 #define SCTP_LISTEN 0x2000 #define SCTP_COOKIE_WAIT 0x0002 #define SCTP_COOKIE_ECHOED 0x0004 #define SCTP_ESTABLISHED 0x0008 #define SCTP_SHUTDOWN_SENT 0x0010 #define SCTP_SHUTDOWN_RECEIVED 0x0020 #define SCTP_SHUTDOWN_ACK_SENT 0x0040 #define SCTP_SHUTDOWN_PENDING 0x0080 #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 */ struct sctp_authchunks { sctp_assoc_t gauth_assoc_id; /* uint32_t gauth_number_of_chunks; not available */ uint8_t gauth_chunks[]; }; struct sctp_assoc_ids { uint32_t gaids_number_of_ids; sctp_assoc_t gaids_assoc_id[]; }; struct sctp_setpeerprim { struct sockaddr_storage sspp_addr; sctp_assoc_t sspp_assoc_id; uint8_t sspp_padding[4]; }; struct sctp_authchunk { uint8_t sauth_chunk; }; struct sctp_get_nonce_values { sctp_assoc_t gn_assoc_id; uint32_t gn_peers_tag; uint32_t gn_local_tag; }; /* * Main SCTP chunk types */ /************0x00 series ***********/ #define SCTP_DATA 0x00 #define SCTP_INITIATION 0x01 #define SCTP_INITIATION_ACK 0x02 #define SCTP_SELECTIVE_ACK 0x03 #define SCTP_HEARTBEAT_REQUEST 0x04 #define SCTP_HEARTBEAT_ACK 0x05 #define SCTP_ABORT_ASSOCIATION 0x06 #define SCTP_SHUTDOWN 0x07 #define SCTP_SHUTDOWN_ACK 0x08 #define SCTP_OPERATION_ERROR 0x09 #define SCTP_COOKIE_ECHO 0x0a #define SCTP_COOKIE_ACK 0x0b #define SCTP_ECN_ECHO 0x0c #define SCTP_ECN_CWR 0x0d #define SCTP_SHUTDOWN_COMPLETE 0x0e /* RFC4895 */ #define SCTP_AUTHENTICATION 0x0f /* EY nr_sack chunk id*/ #define SCTP_NR_SELECTIVE_ACK 0x10 /************0x40 series ***********/ /************0x80 series ***********/ /* RFC5061 */ #define SCTP_ASCONF_ACK 0x80 /* draft-ietf-stewart-pktdrpsctp */ #define SCTP_PACKET_DROPPED 0x81 /* draft-ietf-stewart-strreset-xxx */ #define SCTP_STREAM_RESET 0x82 /* RFC4820 */ #define SCTP_PAD_CHUNK 0x84 /************0xc0 series ***********/ /* RFC3758 */ #define SCTP_FORWARD_CUM_TSN 0xc0 /* RFC5061 */ #define SCTP_ASCONF 0xc1 struct sctp_authkey { sctp_assoc_t sca_assoc_id; uint16_t sca_keynumber; uint16_t sca_keylength; uint8_t sca_key[]; }; struct sctp_authkeyid { sctp_assoc_t scact_assoc_id; uint16_t scact_keynumber; }; 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_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_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; }; /* Standard TCP Congestion Control */ #define SCTP_CC_RFC2581 0x00000000 /* High Speed TCP Congestion Control (Floyd) */ #define SCTP_CC_HSTCP 0x00000001 /* HTCP Congestion Control */ #define SCTP_CC_HTCP 0x00000002 /* RTCC Congestion Control - RFC2581 plus */ #define SCTP_CC_RTCC 0x00000003 #define SCTP_CC_OPT_RTCC_SETMODE 0x00002000 #define SCTP_CC_OPT_USE_DCCC_EC 0x00002001 #define SCTP_CC_OPT_STEADY_STEP 0x00002002 #define SCTP_CMT_OFF 0 #define SCTP_CMT_BASE 1 #define SCTP_CMT_RPV1 2 #define SCTP_CMT_RPV2 3 #define SCTP_CMT_MPTCP 4 #define SCTP_CMT_MAX SCTP_CMT_MPTCP /* RS - Supported stream scheduling modules for pluggable * stream scheduling */ /* Default simple round-robin */ #define SCTP_SS_DEFAULT 0x00000000 /* Real round-robin */ #define SCTP_SS_ROUND_ROBIN 0x00000001 /* Real round-robin per packet */ #define SCTP_SS_ROUND_ROBIN_PACKET 0x00000002 /* Priority */ #define SCTP_SS_PRIORITY 0x00000003 /* Fair Bandwidth */ #define SCTP_SS_FAIR_BANDWITH 0x00000004 /* First-come, first-serve */ #define SCTP_SS_FIRST_COME 0x00000005 /******************** System calls *************/ struct socket; void usrsctp_init(uint16_t, int (*)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df), void (*)(const char *format, ...)); void usrsctp_init_nothreads(uint16_t, int (*)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df), void (*)(const char *format, ...)); struct socket * usrsctp_socket(int domain, int type, int protocol, int (*receive_cb)(struct socket *sock, union sctp_sockstore addr, void *data, size_t datalen, struct sctp_rcvinfo, int flags, void *ulp_info), int (*send_cb)(struct socket *sock, uint32_t sb_free, void *ulp_info), uint32_t sb_threshold, void *ulp_info); int usrsctp_setsockopt(struct socket *so, int level, int option_name, const void *option_value, socklen_t option_len); int usrsctp_getsockopt(struct socket *so, int level, int option_name, void *option_value, socklen_t *option_len); int usrsctp_opt_info(struct socket *so, sctp_assoc_t id, int opt, void *arg, socklen_t *size); int usrsctp_getpaddrs(struct socket *so, sctp_assoc_t id, struct sockaddr **raddrs); void usrsctp_freepaddrs(struct sockaddr *addrs); int usrsctp_getladdrs(struct socket *so, sctp_assoc_t id, struct sockaddr **raddrs); void usrsctp_freeladdrs(struct sockaddr *addrs); ssize_t usrsctp_sendv(struct socket *so, const void *data, size_t len, struct sockaddr *to, int addrcnt, void *info, socklen_t infolen, unsigned int infotype, int flags); ssize_t usrsctp_recvv(struct socket *so, void *dbuf, size_t len, struct sockaddr *from, socklen_t * fromlen, void *info, socklen_t *infolen, unsigned int *infotype, int *msg_flags); int usrsctp_bind(struct socket *so, struct sockaddr *name, socklen_t namelen); #define SCTP_BINDX_ADD_ADDR 0x00008001 #define SCTP_BINDX_REM_ADDR 0x00008002 int usrsctp_bindx(struct socket *so, struct sockaddr *addrs, int addrcnt, int flags); int usrsctp_listen(struct socket *so, int backlog); struct socket * usrsctp_accept(struct socket *so, struct sockaddr * aname, socklen_t * anamelen); struct socket * usrsctp_peeloff(struct socket *, sctp_assoc_t); int usrsctp_connect(struct socket *so, struct sockaddr *name, socklen_t namelen); int usrsctp_connectx(struct socket *so, const struct sockaddr *addrs, int addrcnt, sctp_assoc_t *id); void usrsctp_close(struct socket *so); sctp_assoc_t usrsctp_getassocid(struct socket *, struct sockaddr *); int usrsctp_finish(void); int usrsctp_shutdown(struct socket *so, int how); void usrsctp_conninput(void *, const void *, size_t, uint8_t); int usrsctp_set_non_blocking(struct socket *, int); int usrsctp_get_non_blocking(struct socket *); void usrsctp_register_address(void *); void usrsctp_deregister_address(void *); int usrsctp_set_ulpinfo(struct socket *, void *); int usrsctp_get_ulpinfo(struct socket *, void **); int usrsctp_set_upcall(struct socket *so, void (*upcall)(struct socket *, void *, int), void *arg); int usrsctp_get_events(struct socket *so); void usrsctp_handle_timers(uint32_t elapsed_milliseconds); #define SCTP_DUMP_OUTBOUND 1 #define SCTP_DUMP_INBOUND 0 char * usrsctp_dumppacket(const void *, size_t, int); void usrsctp_freedumpbuffer(char *); void usrsctp_enable_crc32c_offload(void); void usrsctp_disable_crc32c_offload(void); uint32_t usrsctp_crc32c(void *, size_t); #define USRSCTP_TUNABLE_DECL(__field) \ int usrsctp_tunable_set_ ## __field(uint32_t value);\ uint32_t usrsctp_sysctl_get_ ## __field(void); USRSCTP_TUNABLE_DECL(sctp_hashtblsize) USRSCTP_TUNABLE_DECL(sctp_pcbtblsize) USRSCTP_TUNABLE_DECL(sctp_chunkscale) #define USRSCTP_SYSCTL_DECL(__field) \ int usrsctp_sysctl_set_ ## __field(uint32_t value);\ uint32_t usrsctp_sysctl_get_ ## __field(void); USRSCTP_SYSCTL_DECL(sctp_sendspace) USRSCTP_SYSCTL_DECL(sctp_recvspace) USRSCTP_SYSCTL_DECL(sctp_auto_asconf) USRSCTP_SYSCTL_DECL(sctp_multiple_asconfs) USRSCTP_SYSCTL_DECL(sctp_ecn_enable) USRSCTP_SYSCTL_DECL(sctp_pr_enable) USRSCTP_SYSCTL_DECL(sctp_auth_enable) USRSCTP_SYSCTL_DECL(sctp_asconf_enable) USRSCTP_SYSCTL_DECL(sctp_reconfig_enable) USRSCTP_SYSCTL_DECL(sctp_nrsack_enable) USRSCTP_SYSCTL_DECL(sctp_pktdrop_enable) USRSCTP_SYSCTL_DECL(sctp_no_csum_on_loopback) USRSCTP_SYSCTL_DECL(sctp_peer_chunk_oh) USRSCTP_SYSCTL_DECL(sctp_max_burst_default) USRSCTP_SYSCTL_DECL(sctp_max_chunks_on_queue) USRSCTP_SYSCTL_DECL(sctp_min_split_point) USRSCTP_SYSCTL_DECL(sctp_delayed_sack_time_default) USRSCTP_SYSCTL_DECL(sctp_sack_freq_default) USRSCTP_SYSCTL_DECL(sctp_system_free_resc_limit) USRSCTP_SYSCTL_DECL(sctp_asoc_free_resc_limit) USRSCTP_SYSCTL_DECL(sctp_heartbeat_interval_default) USRSCTP_SYSCTL_DECL(sctp_pmtu_raise_time_default) USRSCTP_SYSCTL_DECL(sctp_shutdown_guard_time_default) USRSCTP_SYSCTL_DECL(sctp_secret_lifetime_default) USRSCTP_SYSCTL_DECL(sctp_rto_max_default) USRSCTP_SYSCTL_DECL(sctp_rto_min_default) USRSCTP_SYSCTL_DECL(sctp_rto_initial_default) USRSCTP_SYSCTL_DECL(sctp_init_rto_max_default) USRSCTP_SYSCTL_DECL(sctp_valid_cookie_life_default) USRSCTP_SYSCTL_DECL(sctp_init_rtx_max_default) USRSCTP_SYSCTL_DECL(sctp_assoc_rtx_max_default) USRSCTP_SYSCTL_DECL(sctp_path_rtx_max_default) USRSCTP_SYSCTL_DECL(sctp_add_more_threshold) USRSCTP_SYSCTL_DECL(sctp_nr_incoming_streams_default) USRSCTP_SYSCTL_DECL(sctp_nr_outgoing_streams_default) USRSCTP_SYSCTL_DECL(sctp_cmt_on_off) USRSCTP_SYSCTL_DECL(sctp_cmt_use_dac) USRSCTP_SYSCTL_DECL(sctp_use_cwnd_based_maxburst) USRSCTP_SYSCTL_DECL(sctp_nat_friendly) USRSCTP_SYSCTL_DECL(sctp_L2_abc_variable) USRSCTP_SYSCTL_DECL(sctp_mbuf_threshold_count) USRSCTP_SYSCTL_DECL(sctp_do_drain) USRSCTP_SYSCTL_DECL(sctp_hb_maxburst) USRSCTP_SYSCTL_DECL(sctp_abort_if_one_2_one_hits_limit) USRSCTP_SYSCTL_DECL(sctp_min_residual) USRSCTP_SYSCTL_DECL(sctp_max_retran_chunk) USRSCTP_SYSCTL_DECL(sctp_logging_level) USRSCTP_SYSCTL_DECL(sctp_default_cc_module) USRSCTP_SYSCTL_DECL(sctp_default_frag_interleave) USRSCTP_SYSCTL_DECL(sctp_mobility_base) USRSCTP_SYSCTL_DECL(sctp_mobility_fasthandoff) USRSCTP_SYSCTL_DECL(sctp_inits_include_nat_friendly) USRSCTP_SYSCTL_DECL(sctp_udp_tunneling_port) USRSCTP_SYSCTL_DECL(sctp_enable_sack_immediately) USRSCTP_SYSCTL_DECL(sctp_vtag_time_wait) USRSCTP_SYSCTL_DECL(sctp_blackhole) USRSCTP_SYSCTL_DECL(sctp_sendall_limit) USRSCTP_SYSCTL_DECL(sctp_diag_info_code) USRSCTP_SYSCTL_DECL(sctp_fr_max_burst_default) USRSCTP_SYSCTL_DECL(sctp_path_pf_threshold) USRSCTP_SYSCTL_DECL(sctp_default_ss_module) USRSCTP_SYSCTL_DECL(sctp_rttvar_bw) USRSCTP_SYSCTL_DECL(sctp_rttvar_rtt) USRSCTP_SYSCTL_DECL(sctp_rttvar_eqret) USRSCTP_SYSCTL_DECL(sctp_steady_step) USRSCTP_SYSCTL_DECL(sctp_use_dccc_ecn) USRSCTP_SYSCTL_DECL(sctp_buffer_splitting) USRSCTP_SYSCTL_DECL(sctp_initial_cwnd) #ifdef SCTP_DEBUG USRSCTP_SYSCTL_DECL(sctp_debug_on) /* More specific values can be found in sctp_constants, but * are not considered to be part of the API. */ #define SCTP_DEBUG_NONE 0x00000000 #define SCTP_DEBUG_ALL 0xffffffff #endif #undef USRSCTP_SYSCTL_DECL 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_recv_spare; /* formerly 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_send_spare; /* formerly 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 */ }; void usrsctp_get_stat(struct sctpstat *); #ifdef _WIN32 #ifdef _MSC_VER #pragma warning(default: 4200) #endif #endif #ifdef __cplusplus } #endif #endif