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freebsd/sys/netinet/sctp_constants.h
Michael Tuexen e629b9fc56 Ensure that ERROR chunks are always padded by implementing this 
in the routine, which queues an ERROR chunk, instead on relyinh
on the callers to do so. Since one caller missed this, this actially
fixes a bug.

MFC after:	1 week
2015-09-11 13:54:33 +00:00

1037 lines
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/*-
* Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifndef _NETINET_SCTP_CONSTANTS_H_
#define _NETINET_SCTP_CONSTANTS_H_
/* IANA assigned port number for SCTP over UDP encapsulation */
#define SCTP_OVER_UDP_TUNNELING_PORT 9899
/* Number of packets to get before sack sent by default */
#define SCTP_DEFAULT_SACK_FREQ 2
/* Address limit - This variable is calculated
* based on an 65535 byte max ip packet. We take out 100 bytes
* for the cookie, 40 bytes for a v6 header and 32
* bytes for the init structure. A second init structure
* for the init-ack and then finally a third one for the
* imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes.
* This leaves 65299 bytes for addresses. We throw out the 299 bytes.
* Now whatever we send in the INIT() we need to allow to get back in the
* INIT-ACK plus all the values from INIT and INIT-ACK
* listed in the cookie. Plus we need some overhead for
* maybe copied parameters in the COOKIE. If we
* allow 1080 addresses, and each side has 1080 V6 addresses
* that will be 21600 bytes. In the INIT-ACK we will
* see the INIT-ACK 21600 + 43200 in the cookie. This leaves
* about 500 bytes slack for misc things in the cookie.
*/
#define SCTP_ADDRESS_LIMIT 1080
/* We need at least 2k of space for us, inits
* larger than that lets abort.
*/
#define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048)
/* Largest length of a chunk */
#define SCTP_MAX_CHUNK_LENGTH 0xffff
/* Number of addresses where we just skip the counting */
#define SCTP_COUNT_LIMIT 40
#define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000)
#define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000)
/* Number of ticks to delay before running
* iterator on an address change.
*/
#define SCTP_ADDRESS_TICK_DELAY 2
#define SCTP_VERSION_STRING "KAME-BSD 1.1"
/* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */
#define SCTP_AUDIT_SIZE 256
#define SCTP_KTRHEAD_NAME "sctp_iterator"
#define SCTP_KTHREAD_PAGES 0
#define SCTP_MCORE_NAME "sctp_core_worker"
/* If you support Multi-VRF how big to
* make the initial array of VRF's to.
*/
#define SCTP_DEFAULT_VRF_SIZE 4
/* constants for rto calc */
#define sctp_align_safe_nocopy 0
#define sctp_align_unsafe_makecopy 1
/* JRS - Values defined for the HTCP algorithm */
#define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */
#define BETA_MIN (1<<6) /* 0.5 with shift << 7 */
#define BETA_MAX 102 /* 0.8 with shift << 7 */
/* Places that CWND log can happen from */
#define SCTP_CWND_LOG_FROM_FR 1
#define SCTP_CWND_LOG_FROM_RTX 2
#define SCTP_CWND_LOG_FROM_BRST 3
#define SCTP_CWND_LOG_FROM_SS 4
#define SCTP_CWND_LOG_FROM_CA 5
#define SCTP_CWND_LOG_FROM_SAT 6
#define SCTP_BLOCK_LOG_INTO_BLK 7
#define SCTP_BLOCK_LOG_OUTOF_BLK 8
#define SCTP_BLOCK_LOG_CHECK 9
#define SCTP_STR_LOG_FROM_INTO_STRD 10
#define SCTP_STR_LOG_FROM_IMMED_DEL 11
#define SCTP_STR_LOG_FROM_INSERT_HD 12
#define SCTP_STR_LOG_FROM_INSERT_MD 13
#define SCTP_STR_LOG_FROM_INSERT_TL 14
#define SCTP_STR_LOG_FROM_MARK_TSN 15
#define SCTP_STR_LOG_FROM_EXPRS_DEL 16
#define SCTP_FR_LOG_BIGGEST_TSNS 17
#define SCTP_FR_LOG_STRIKE_TEST 18
#define SCTP_FR_LOG_STRIKE_CHUNK 19
#define SCTP_FR_T3_TIMEOUT 20
#define SCTP_MAP_PREPARE_SLIDE 21
#define SCTP_MAP_SLIDE_FROM 22
#define SCTP_MAP_SLIDE_RESULT 23
#define SCTP_MAP_SLIDE_CLEARED 24
#define SCTP_MAP_SLIDE_NONE 25
#define SCTP_FR_T3_MARK_TIME 26
#define SCTP_FR_T3_MARKED 27
#define SCTP_FR_T3_STOPPED 28
#define SCTP_FR_MARKED 30
#define SCTP_CWND_LOG_NOADV_SS 31
#define SCTP_CWND_LOG_NOADV_CA 32
#define SCTP_MAX_BURST_APPLIED 33
#define SCTP_MAX_IFP_APPLIED 34
#define SCTP_MAX_BURST_ERROR_STOP 35
#define SCTP_INCREASE_PEER_RWND 36
#define SCTP_DECREASE_PEER_RWND 37
#define SCTP_SET_PEER_RWND_VIA_SACK 38
#define SCTP_LOG_MBCNT_INCREASE 39
#define SCTP_LOG_MBCNT_DECREASE 40
#define SCTP_LOG_MBCNT_CHKSET 41
#define SCTP_LOG_NEW_SACK 42
#define SCTP_LOG_TSN_ACKED 43
#define SCTP_LOG_TSN_REVOKED 44
#define SCTP_LOG_LOCK_TCB 45
#define SCTP_LOG_LOCK_INP 46
#define SCTP_LOG_LOCK_SOCK 47
#define SCTP_LOG_LOCK_SOCKBUF_R 48
#define SCTP_LOG_LOCK_SOCKBUF_S 49
#define SCTP_LOG_LOCK_CREATE 50
#define SCTP_LOG_INITIAL_RTT 51
#define SCTP_LOG_RTTVAR 52
#define SCTP_LOG_SBALLOC 53
#define SCTP_LOG_SBFREE 54
#define SCTP_LOG_SBRESULT 55
#define SCTP_FR_DUPED 56
#define SCTP_FR_MARKED_EARLY 57
#define SCTP_FR_CWND_REPORT 58
#define SCTP_FR_CWND_REPORT_START 59
#define SCTP_FR_CWND_REPORT_STOP 60
#define SCTP_CWND_LOG_FROM_SEND 61
#define SCTP_CWND_INITIALIZATION 62
#define SCTP_CWND_LOG_FROM_T3 63
#define SCTP_CWND_LOG_FROM_SACK 64
#define SCTP_CWND_LOG_NO_CUMACK 65
#define SCTP_CWND_LOG_FROM_RESEND 66
#define SCTP_FR_LOG_CHECK_STRIKE 67
#define SCTP_SEND_NOW_COMPLETES 68
#define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69
#define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70
#define SCTP_LOG_FREE_SENT 71
#define SCTP_NAGLE_APPLIED 72
#define SCTP_NAGLE_SKIPPED 73
#define SCTP_WAKESND_FROM_SACK 74
#define SCTP_WAKESND_FROM_FWDTSN 75
#define SCTP_NOWAKE_FROM_SACK 76
#define SCTP_CWNDLOG_PRESEND 77
#define SCTP_CWNDLOG_ENDSEND 78
#define SCTP_AT_END_OF_SACK 79
#define SCTP_REASON_FOR_SC 80
#define SCTP_BLOCK_LOG_INTO_BLKA 81
#define SCTP_ENTER_USER_RECV 82
#define SCTP_USER_RECV_SACKS 83
#define SCTP_SORECV_BLOCKSA 84
#define SCTP_SORECV_BLOCKSB 85
#define SCTP_SORECV_DONE 86
#define SCTP_SACK_RWND_UPDATE 87
#define SCTP_SORECV_ENTER 88
#define SCTP_SORECV_ENTERPL 89
#define SCTP_MBUF_INPUT 90
#define SCTP_MBUF_IALLOC 91
#define SCTP_MBUF_IFREE 92
#define SCTP_MBUF_ICOPY 93
#define SCTP_MBUF_SPLIT 94
#define SCTP_SORCV_FREECTL 95
#define SCTP_SORCV_DOESCPY 96
#define SCTP_SORCV_DOESLCK 97
#define SCTP_SORCV_DOESADJ 98
#define SCTP_SORCV_BOTWHILE 99
#define SCTP_SORCV_PASSBF 100
#define SCTP_SORCV_ADJD 101
#define SCTP_UNKNOWN_MAX 102
#define SCTP_RANDY_STUFF 103
#define SCTP_RANDY_STUFF1 104
#define SCTP_STRMOUT_LOG_ASSIGN 105
#define SCTP_STRMOUT_LOG_SEND 106
#define SCTP_FLIGHT_LOG_DOWN_CA 107
#define SCTP_FLIGHT_LOG_UP 108
#define SCTP_FLIGHT_LOG_DOWN_GAP 109
#define SCTP_FLIGHT_LOG_DOWN_RSND 110
#define SCTP_FLIGHT_LOG_UP_RSND 111
#define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112
#define SCTP_FLIGHT_LOG_DOWN_WP 113
#define SCTP_FLIGHT_LOG_UP_REVOKE 114
#define SCTP_FLIGHT_LOG_DOWN_PDRP 115
#define SCTP_FLIGHT_LOG_DOWN_PMTU 116
#define SCTP_SACK_LOG_NORMAL 117
#define SCTP_SACK_LOG_EXPRESS 118
#define SCTP_MAP_TSN_ENTERS 119
#define SCTP_THRESHOLD_CLEAR 120
#define SCTP_THRESHOLD_INCR 121
#define SCTP_FLIGHT_LOG_DWN_WP_FWD 122
#define SCTP_FWD_TSN_CHECK 123
#define SCTP_LOG_MAX_TYPES 124
/*
* To turn on various logging, you must first enable 'options KTR' and
* you might want to bump the entires 'options KTR_ENTRIES=80000'.
* To get something to log you define one of the logging defines.
* (see LINT).
*
* This gets the compile in place, but you still need to turn the
* logging flag on too in the sysctl (see in sctp.h).
*/
#define SCTP_LOG_EVENT_UNKNOWN 0
#define SCTP_LOG_EVENT_CWND 1
#define SCTP_LOG_EVENT_BLOCK 2
#define SCTP_LOG_EVENT_STRM 3
#define SCTP_LOG_EVENT_FR 4
#define SCTP_LOG_EVENT_MAP 5
#define SCTP_LOG_EVENT_MAXBURST 6
#define SCTP_LOG_EVENT_RWND 7
#define SCTP_LOG_EVENT_MBCNT 8
#define SCTP_LOG_EVENT_SACK 9
#define SCTP_LOG_LOCK_EVENT 10
#define SCTP_LOG_EVENT_RTT 11
#define SCTP_LOG_EVENT_SB 12
#define SCTP_LOG_EVENT_NAGLE 13
#define SCTP_LOG_EVENT_WAKE 14
#define SCTP_LOG_MISC_EVENT 15
#define SCTP_LOG_EVENT_CLOSE 16
#define SCTP_LOG_EVENT_MBUF 17
#define SCTP_LOG_CHUNK_PROC 18
#define SCTP_LOG_ERROR_RET 19
#define SCTP_LOG_MAX_EVENT 20
#define SCTP_LOCK_UNKNOWN 2
/* number of associations by default for zone allocation */
#define SCTP_MAX_NUM_OF_ASOC 40000
/* how many addresses per assoc remote and local */
#define SCTP_SCALE_FOR_ADDR 2
/* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */
#define SCTP_DEFAULT_MULTIPLE_ASCONFS 0
/*
* Theshold for rwnd updates, we have to read (sb_hiwat >>
* SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a
* window update sack. When we look, we compare the last rwnd we sent vs the
* current rwnd. It too must be greater than this value. Using 3 divdes the
* hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need
* to read 8k. This seems about right.. I hope :-D.. we do set a
* min of a MTU on it so if the rwnd is real small we will insist
* on a full MTU of 1500 bytes.
*/
#define SCTP_RWND_HIWAT_SHIFT 3
/* How much of the rwnd must the
* message be taking up to start partial delivery.
* We calculate this by shifing the hi_water (recv_win)
* left the following .. set to 1, when a message holds
* 1/2 the rwnd. If we set it to 2 when a message holds
* 1/4 the rwnd...etc..
*/
#define SCTP_PARTIAL_DELIVERY_SHIFT 1
/*
* default HMAC for cookies, etc... use one of the AUTH HMAC id's
* SCTP_HMAC is the HMAC_ID to use
* SCTP_SIGNATURE_SIZE is the digest length
*/
#define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1
#define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1
#define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE
/*
* the SCTP protocol signature this includes the version number encoded in
* the last 4 bits of the signature.
*/
#define PROTO_SIGNATURE_A 0x30000000
#define SCTP_VERSION_NUMBER 0x3
#define MAX_TSN 0xffffffff
/* how many executions every N tick's */
#define SCTP_ITERATOR_MAX_AT_ONCE 20
/* number of clock ticks between iterator executions */
#define SCTP_ITERATOR_TICKS 1
/*
* option: If you comment out the following you will receive the old behavior
* of obeying cwnd for the fast retransmit algorithm. With this defined a FR
* happens right away with-out waiting for the flightsize to drop below the
* cwnd value (which is reduced by the FR to 1/2 the inflight packets).
*/
#define SCTP_IGNORE_CWND_ON_FR 1
/*
* Adds implementors guide behavior to only use newest highest update in SACK
* gap ack's to figure out if you need to stroke a chunk for FR.
*/
#define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1
/* default max I can burst out after a fast retransmit, 0 disables it */
#define SCTP_DEF_MAX_BURST 4
#define SCTP_DEF_HBMAX_BURST 4
#define SCTP_DEF_FRMAX_BURST 4
/* RTO calculation flag to say if it
* is safe to determine local lan or not.
*/
#define SCTP_RTT_FROM_NON_DATA 0
#define SCTP_RTT_FROM_DATA 1
/* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */
#define SCTP_FIRST_MBUF_RESV 68
/* Packet transmit states in the sent field */
#define SCTP_DATAGRAM_UNSENT 0
#define SCTP_DATAGRAM_SENT 1
#define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may
* hit this value) */
#define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may
* hit this value) */
#define SCTP_DATAGRAM_RESEND 4
#define SCTP_DATAGRAM_ACKED 10010
#define SCTP_DATAGRAM_MARKED 20010
#define SCTP_FORWARD_TSN_SKIP 30010
#define SCTP_DATAGRAM_NR_ACKED 40010
/* chunk output send from locations */
#define SCTP_OUTPUT_FROM_USR_SEND 0
#define SCTP_OUTPUT_FROM_T3 1
#define SCTP_OUTPUT_FROM_INPUT_ERROR 2
#define SCTP_OUTPUT_FROM_CONTROL_PROC 3
#define SCTP_OUTPUT_FROM_SACK_TMR 4
#define SCTP_OUTPUT_FROM_SHUT_TMR 5
#define SCTP_OUTPUT_FROM_HB_TMR 6
#define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7
#define SCTP_OUTPUT_FROM_ASCONF_TMR 8
#define SCTP_OUTPUT_FROM_STRRST_TMR 9
#define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10
#define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11
#define SCTP_OUTPUT_FROM_STRRST_REQ 12
#define SCTP_OUTPUT_FROM_USR_RCVD 13
#define SCTP_OUTPUT_FROM_COOKIE_ACK 14
#define SCTP_OUTPUT_FROM_DRAIN 15
#define SCTP_OUTPUT_FROM_CLOSING 16
#define SCTP_OUTPUT_FROM_SOCKOPT 17
/* SCTP chunk types are moved sctp.h for application (NAT, FW) use */
/* align to 32-bit sizes */
#define SCTP_SIZE32(x) ((((x) + 3) >> 2) << 2)
#define IS_SCTP_CONTROL(a) ((a)->chunk_type != SCTP_DATA)
#define IS_SCTP_DATA(a) ((a)->chunk_type == SCTP_DATA)
/* SCTP parameter types */
/*************0x0000 series*************/
#define SCTP_HEARTBEAT_INFO 0x0001
#define SCTP_IPV4_ADDRESS 0x0005
#define SCTP_IPV6_ADDRESS 0x0006
#define SCTP_STATE_COOKIE 0x0007
#define SCTP_UNRECOG_PARAM 0x0008
#define SCTP_COOKIE_PRESERVE 0x0009
#define SCTP_HOSTNAME_ADDRESS 0x000b
#define SCTP_SUPPORTED_ADDRTYPE 0x000c
/* draft-ietf-stewart-tsvwg-strreset-xxx */
#define SCTP_STR_RESET_OUT_REQUEST 0x000d
#define SCTP_STR_RESET_IN_REQUEST 0x000e
#define SCTP_STR_RESET_TSN_REQUEST 0x000f
#define SCTP_STR_RESET_RESPONSE 0x0010
#define SCTP_STR_RESET_ADD_OUT_STREAMS 0x0011
#define SCTP_STR_RESET_ADD_IN_STREAMS 0x0012
#define SCTP_MAX_RESET_PARAMS 2
#define SCTP_STREAM_RESET_TSN_DELTA 0x1000
/*************0x4000 series*************/
/*************0x8000 series*************/
#define SCTP_ECN_CAPABLE 0x8000
/* draft-ietf-tsvwg-auth-xxx */
#define SCTP_RANDOM 0x8002
#define SCTP_CHUNK_LIST 0x8003
#define SCTP_HMAC_LIST 0x8004
/*
* draft-ietf-tsvwg-addip-sctp-xx param=0x8008 len=0xNNNN Byte | Byte | Byte
* | Byte Byte | Byte ...
*
* Where each byte is a chunk type extension supported. For example, to support
* all chunks one would have (in hex):
*
* 80 01 00 09 C0 C1 80 81 82 00 00 00
*
* Has the parameter. C0 = PR-SCTP (RFC3758) C1, 80 = ASCONF (addip draft) 81
* = Packet Drop 82 = Stream Reset 83 = Authentication
*/
#define SCTP_SUPPORTED_CHUNK_EXT 0x8008
/*************0xC000 series*************/
#define SCTP_PRSCTP_SUPPORTED 0xc000
/* draft-ietf-tsvwg-addip-sctp */
#define SCTP_ADD_IP_ADDRESS 0xc001
#define SCTP_DEL_IP_ADDRESS 0xc002
#define SCTP_ERROR_CAUSE_IND 0xc003
#define SCTP_SET_PRIM_ADDR 0xc004
#define SCTP_SUCCESS_REPORT 0xc005
#define SCTP_ULP_ADAPTATION 0xc006
/* behave-nat-draft */
#define SCTP_HAS_NAT_SUPPORT 0xc007
#define SCTP_NAT_VTAGS 0xc008
/* bits for TOS field */
#define SCTP_ECT0_BIT 0x02
#define SCTP_ECT1_BIT 0x01
#define SCTP_CE_BITS 0x03
/* below turns off above */
#define SCTP_FLEXIBLE_ADDRESS 0x20
#define SCTP_NO_HEARTBEAT 0x40
/* mask to get sticky */
#define SCTP_STICKY_OPTIONS_MASK 0x0c
/*
* SCTP states for internal state machine
*/
#define SCTP_STATE_EMPTY 0x0000
#define SCTP_STATE_INUSE 0x0001
#define SCTP_STATE_COOKIE_WAIT 0x0002
#define SCTP_STATE_COOKIE_ECHOED 0x0004
#define SCTP_STATE_OPEN 0x0008
#define SCTP_STATE_SHUTDOWN_SENT 0x0010
#define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020
#define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040
#define SCTP_STATE_SHUTDOWN_PENDING 0x0080
#define SCTP_STATE_CLOSED_SOCKET 0x0100
#define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200
#define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400
#define SCTP_STATE_WAS_ABORTED 0x0800
#define SCTP_STATE_IN_ACCEPT_QUEUE 0x1000
#define SCTP_STATE_MASK 0x007f
#define SCTP_GET_STATE(asoc) ((asoc)->state & SCTP_STATE_MASK)
#define SCTP_SET_STATE(asoc, newstate) ((asoc)->state = ((asoc)->state & ~SCTP_STATE_MASK) | newstate)
#define SCTP_CLEAR_SUBSTATE(asoc, substate) ((asoc)->state &= ~substate)
#define SCTP_ADD_SUBSTATE(asoc, substate) ((asoc)->state |= substate)
/* SCTP reachability state for each address */
#define SCTP_ADDR_REACHABLE 0x001
#define SCTP_ADDR_NO_PMTUD 0x002
#define SCTP_ADDR_NOHB 0x004
#define SCTP_ADDR_BEING_DELETED 0x008
#define SCTP_ADDR_NOT_IN_ASSOC 0x010
#define SCTP_ADDR_OUT_OF_SCOPE 0x080
#define SCTP_ADDR_UNCONFIRMED 0x200
#define SCTP_ADDR_REQ_PRIMARY 0x400
/* JRS 5/13/07 - Added potentially failed state for CMT PF */
#define SCTP_ADDR_PF 0x800
/* bound address types (e.g. valid address types to allow) */
#define SCTP_BOUND_V6 0x01
#define SCTP_BOUND_V4 0x02
/*
* what is the default number of mbufs in a chain I allow before switching to
* a cluster
*/
#define SCTP_DEFAULT_MBUFS_IN_CHAIN 5
/* How long a cookie lives in milli-seconds */
#define SCTP_DEFAULT_COOKIE_LIFE 60000
/* Maximum the mapping array will grow to (TSN mapping array) */
#define SCTP_MAPPING_ARRAY 512
/* size of the inital malloc on the mapping array */
#define SCTP_INITIAL_MAPPING_ARRAY 16
/* how much we grow the mapping array each call */
#define SCTP_MAPPING_ARRAY_INCR 32
/*
* Here we define the timer types used by the implementation as arguments in
* the set/get timer type calls.
*/
#define SCTP_TIMER_INIT 0
#define SCTP_TIMER_RECV 1
#define SCTP_TIMER_SEND 2
#define SCTP_TIMER_HEARTBEAT 3
#define SCTP_TIMER_PMTU 4
#define SCTP_TIMER_MAXSHUTDOWN 5
#define SCTP_TIMER_SIGNATURE 6
/*
* number of timer types in the base SCTP structure used in the set/get and
* has the base default.
*/
#define SCTP_NUM_TMRS 7
/* timer types */
#define SCTP_TIMER_TYPE_NONE 0
#define SCTP_TIMER_TYPE_SEND 1
#define SCTP_TIMER_TYPE_INIT 2
#define SCTP_TIMER_TYPE_RECV 3
#define SCTP_TIMER_TYPE_SHUTDOWN 4
#define SCTP_TIMER_TYPE_HEARTBEAT 5
#define SCTP_TIMER_TYPE_COOKIE 6
#define SCTP_TIMER_TYPE_NEWCOOKIE 7
#define SCTP_TIMER_TYPE_PATHMTURAISE 8
#define SCTP_TIMER_TYPE_SHUTDOWNACK 9
#define SCTP_TIMER_TYPE_ASCONF 10
#define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11
#define SCTP_TIMER_TYPE_AUTOCLOSE 12
#define SCTP_TIMER_TYPE_EVENTWAKE 13
#define SCTP_TIMER_TYPE_STRRESET 14
#define SCTP_TIMER_TYPE_INPKILL 15
#define SCTP_TIMER_TYPE_ASOCKILL 16
#define SCTP_TIMER_TYPE_ADDR_WQ 17
#define SCTP_TIMER_TYPE_ZERO_COPY 18
#define SCTP_TIMER_TYPE_ZCOPY_SENDQ 19
#define SCTP_TIMER_TYPE_PRIM_DELETED 20
/* add new timers here - and increment LAST */
#define SCTP_TIMER_TYPE_LAST 21
#define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \
((t) < SCTP_TIMER_TYPE_LAST))
/* max number of TSN's dup'd that I will hold */
#define SCTP_MAX_DUP_TSNS 20
/*
* Here we define the types used when setting the retry amounts.
*/
/* How many drop re-attempts we make on INIT/COOKIE-ECHO */
#define SCTP_RETRY_DROPPED_THRESH 4
/*
* Maxmium number of chunks a single association can have on it. Note that
* this is a squishy number since the count can run over this if the user
* sends a large message down .. the fragmented chunks don't count until
* AFTER the message is on queue.. it would be the next send that blocks
* things. This number will get tuned up at boot in the sctp_init and use the
* number of clusters as a base. This way high bandwidth environments will
* not get impacted by the lower bandwidth sending a bunch of 1 byte chunks
*/
#define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512
/* The conversion from time to ticks and vice versa is done by rounding
* upwards. This way we can test in the code the time to be positive and
* know that this corresponds to a positive number of ticks.
*/
#define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000))
#define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz))
#define SEC_TO_TICKS(x) ((x) * hz)
#define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz)
/*
* Basically the minimum amount of time before I do a early FR. Making this
* value to low will cause duplicate retransmissions.
*/
#define SCTP_MINFR_MSEC_TIMER 250
/* The floor this value is allowed to fall to when starting a timer. */
#define SCTP_MINFR_MSEC_FLOOR 20
/* init timer def = 1 sec */
#define SCTP_INIT_SEC 1
/* send timer def = 1 seconds */
#define SCTP_SEND_SEC 1
/* recv timer def = 200ms */
#define SCTP_RECV_MSEC 200
/* 30 seconds + RTO (in ms) */
#define SCTP_HB_DEFAULT_MSEC 30000
/*
* This is how long a secret lives, NOT how long a cookie lives how many
* ticks the current secret will live.
*/
#define SCTP_DEFAULT_SECRET_LIFE_SEC 3600
#define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */
#define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec is ms */
#define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */
#define SCTP_INP_KILL_TIMEOUT 20/* number of ms to retry kill of inpcb */
#define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */
#define SCTP_DEF_MAX_INIT 8
#define SCTP_DEF_MAX_SEND 10
#define SCTP_DEF_MAX_PATH_RTX 5
#define SCTP_DEF_PATH_PF_THRESHOLD SCTP_DEF_MAX_PATH_RTX
#define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */
/* How many streams I request initally by default */
#define SCTP_OSTREAM_INITIAL 10
#define SCTP_ISTREAM_INITIAL 2048
/*
* How many smallest_mtu's need to increase before a window update sack is
* sent (should be a power of 2).
*/
/* Send window update (incr * this > hiwat). Should be a power of 2 */
#define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */
#define SCTP_ADDRMAX 16
/* SCTP DEBUG Switch parameters */
#define SCTP_DEBUG_TIMER1 0x00000001
#define SCTP_DEBUG_TIMER2 0x00000002 /* unused */
#define SCTP_DEBUG_TIMER3 0x00000004 /* unused */
#define SCTP_DEBUG_TIMER4 0x00000008
#define SCTP_DEBUG_OUTPUT1 0x00000010
#define SCTP_DEBUG_OUTPUT2 0x00000020
#define SCTP_DEBUG_OUTPUT3 0x00000040
#define SCTP_DEBUG_OUTPUT4 0x00000080
#define SCTP_DEBUG_UTIL1 0x00000100
#define SCTP_DEBUG_UTIL2 0x00000200 /* unused */
#define SCTP_DEBUG_AUTH1 0x00000400
#define SCTP_DEBUG_AUTH2 0x00000800 /* unused */
#define SCTP_DEBUG_INPUT1 0x00001000
#define SCTP_DEBUG_INPUT2 0x00002000
#define SCTP_DEBUG_INPUT3 0x00004000
#define SCTP_DEBUG_INPUT4 0x00008000 /* unused */
#define SCTP_DEBUG_ASCONF1 0x00010000
#define SCTP_DEBUG_ASCONF2 0x00020000
#define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */
#define SCTP_DEBUG_XXX 0x00080000 /* unused */
#define SCTP_DEBUG_PCB1 0x00100000
#define SCTP_DEBUG_PCB2 0x00200000 /* unused */
#define SCTP_DEBUG_PCB3 0x00400000
#define SCTP_DEBUG_PCB4 0x00800000
#define SCTP_DEBUG_INDATA1 0x01000000
#define SCTP_DEBUG_INDATA2 0x02000000 /* unused */
#define SCTP_DEBUG_INDATA3 0x04000000 /* unused */
#define SCTP_DEBUG_CRCOFFLOAD 0x08000000 /* unused */
#define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */
#define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */
#define SCTP_DEBUG_PEEL1 0x40000000
#define SCTP_DEBUG_XXXXX 0x80000000 /* unused */
#define SCTP_DEBUG_ALL 0x7ff3ffff
#define SCTP_DEBUG_NOISY 0x00040000
/* What sender needs to see to avoid SWS or we consider peers rwnd 0 */
#define SCTP_SWS_SENDER_DEF 1420
/*
* SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1
* would be hiwat/2 etc.
*/
/* What receiver needs to see in sockbuf or we tell peer its 1 */
#define SCTP_SWS_RECEIVER_DEF 3000
#define SCTP_INITIAL_CWND 4380
#define SCTP_DEFAULT_MTU 1500 /* emergency default MTU */
/* amount peer is obligated to have in rwnd or I will abort */
#define SCTP_MIN_RWND 1500
#define SCTP_DEFAULT_MAXSEGMENT 65535
#define SCTP_CHUNK_BUFFER_SIZE 512
#define SCTP_PARAM_BUFFER_SIZE 512
/* small chunk store for looking at chunk_list in auth */
#define SCTP_SMALL_CHUNK_STORE 260
#define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */
#define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */
#define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */
/*
* SCTP upper layer notifications
*/
#define SCTP_NOTIFY_ASSOC_UP 1
#define SCTP_NOTIFY_ASSOC_DOWN 2
#define SCTP_NOTIFY_INTERFACE_DOWN 3
#define SCTP_NOTIFY_INTERFACE_UP 4
#define SCTP_NOTIFY_SENT_DG_FAIL 5
#define SCTP_NOTIFY_UNSENT_DG_FAIL 6
#define SCTP_NOTIFY_SPECIAL_SP_FAIL 7
#define SCTP_NOTIFY_ASSOC_LOC_ABORTED 8
#define SCTP_NOTIFY_ASSOC_REM_ABORTED 9
#define SCTP_NOTIFY_ASSOC_RESTART 10
#define SCTP_NOTIFY_PEER_SHUTDOWN 11
#define SCTP_NOTIFY_ASCONF_ADD_IP 12
#define SCTP_NOTIFY_ASCONF_DELETE_IP 13
#define SCTP_NOTIFY_ASCONF_SET_PRIMARY 14
#define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 15
#define SCTP_NOTIFY_INTERFACE_CONFIRMED 16
#define SCTP_NOTIFY_STR_RESET_RECV 17
#define SCTP_NOTIFY_STR_RESET_SEND 18
#define SCTP_NOTIFY_STR_RESET_FAILED_OUT 19
#define SCTP_NOTIFY_STR_RESET_FAILED_IN 20
#define SCTP_NOTIFY_STR_RESET_DENIED_OUT 21
#define SCTP_NOTIFY_STR_RESET_DENIED_IN 22
#define SCTP_NOTIFY_AUTH_NEW_KEY 23
#define SCTP_NOTIFY_AUTH_FREE_KEY 24
#define SCTP_NOTIFY_NO_PEER_AUTH 25
#define SCTP_NOTIFY_SENDER_DRY 26
#define SCTP_NOTIFY_REMOTE_ERROR 27
/* This is the value for messages that are NOT completely
* copied down where we will start to split the message.
* So, with our default, we split only if the piece we
* want to take will fill up a full MTU (assuming
* a 1500 byte MTU).
*/
#define SCTP_DEFAULT_SPLIT_POINT_MIN 2904
/* Maximum length of diagnostic information in error causes */
#define SCTP_DIAG_INFO_LEN 64
/* ABORT CODES and other tell-tale location
* codes are generated by adding the below
* to the instance id.
*/
/* File defines */
#define SCTP_FROM_SCTP_INPUT 0x10000000
#define SCTP_FROM_SCTP_PCB 0x20000000
#define SCTP_FROM_SCTP_INDATA 0x30000000
#define SCTP_FROM_SCTP_TIMER 0x40000000
#define SCTP_FROM_SCTP_USRREQ 0x50000000
#define SCTP_FROM_SCTPUTIL 0x60000000
#define SCTP_FROM_SCTP6_USRREQ 0x70000000
#define SCTP_FROM_SCTP_ASCONF 0x80000000
#define SCTP_FROM_SCTP_OUTPUT 0x90000000
#define SCTP_FROM_SCTP_PEELOFF 0xa0000000
#define SCTP_FROM_SCTP_PANDA 0xb0000000
#define SCTP_FROM_SCTP_SYSCTL 0xc0000000
#define SCTP_FROM_SCTP_CC_FUNCTIONS 0xd0000000
/* Location ID's */
#define SCTP_LOC_1 0x00000001
#define SCTP_LOC_2 0x00000002
#define SCTP_LOC_3 0x00000003
#define SCTP_LOC_4 0x00000004
#define SCTP_LOC_5 0x00000005
#define SCTP_LOC_6 0x00000006
#define SCTP_LOC_7 0x00000007
#define SCTP_LOC_8 0x00000008
#define SCTP_LOC_9 0x00000009
#define SCTP_LOC_10 0x0000000a
#define SCTP_LOC_11 0x0000000b
#define SCTP_LOC_12 0x0000000c
#define SCTP_LOC_13 0x0000000d
#define SCTP_LOC_14 0x0000000e
#define SCTP_LOC_15 0x0000000f
#define SCTP_LOC_16 0x00000010
#define SCTP_LOC_17 0x00000011
#define SCTP_LOC_18 0x00000012
#define SCTP_LOC_19 0x00000013
#define SCTP_LOC_20 0x00000014
#define SCTP_LOC_21 0x00000015
#define SCTP_LOC_22 0x00000016
#define SCTP_LOC_23 0x00000017
#define SCTP_LOC_24 0x00000018
#define SCTP_LOC_25 0x00000019
#define SCTP_LOC_26 0x0000001a
#define SCTP_LOC_27 0x0000001b
#define SCTP_LOC_28 0x0000001c
#define SCTP_LOC_29 0x0000001d
#define SCTP_LOC_30 0x0000001e
#define SCTP_LOC_31 0x0000001f
#define SCTP_LOC_32 0x00000020
#define SCTP_LOC_33 0x00000021
#define SCTP_LOC_34 0x00000022
#define SCTP_LOC_35 0x00000023
/* Free assoc codes */
#define SCTP_NORMAL_PROC 0
#define SCTP_PCBFREE_NOFORCE 1
#define SCTP_PCBFREE_FORCE 2
/* From codes for adding addresses */
#define SCTP_ADDR_IS_CONFIRMED 8
#define SCTP_ADDR_DYNAMIC_ADDED 6
#define SCTP_IN_COOKIE_PROC 100
#define SCTP_ALLOC_ASOC 1
#define SCTP_LOAD_ADDR_2 2
#define SCTP_LOAD_ADDR_3 3
#define SCTP_LOAD_ADDR_4 4
#define SCTP_LOAD_ADDR_5 5
#define SCTP_DONOT_SETSCOPE 0
#define SCTP_DO_SETSCOPE 1
/* This value determines the default for when
* we try to add more on the send queue., if
* there is room. This prevents us from cycling
* into the copy_resume routine to often if
* we have not got enough space to add a decent
* enough size message. Note that if we have enough
* space to complete the message copy we will always
* add to the message, no matter what the size. Its
* only when we reach the point that we have some left
* to add, there is only room for part of it that we
* will use this threshold. Its also a sysctl.
*/
#define SCTP_DEFAULT_ADD_MORE 1452
#ifndef SCTP_PCBHASHSIZE
/* default number of association hash buckets in each endpoint */
#define SCTP_PCBHASHSIZE 256
#endif
#ifndef SCTP_TCBHASHSIZE
#define SCTP_TCBHASHSIZE 1024
#endif
#ifndef SCTP_CHUNKQUEUE_SCALE
#define SCTP_CHUNKQUEUE_SCALE 10
#endif
/* clock variance is 1 ms */
#define SCTP_CLOCK_GRANULARITY 1
#define IP_HDR_SIZE 40 /* we use the size of a IP6 header here this
* detracts a small amount for ipv4 but it
* simplifies the ipv6 addition */
/* Argument magic number for sctp_inpcb_free() */
/* third argument */
#define SCTP_CALLED_DIRECTLY_NOCMPSET 0
#define SCTP_CALLED_AFTER_CMPSET_OFCLOSE 1
#define SCTP_CALLED_FROM_INPKILL_TIMER 2
/* second argument */
#define SCTP_FREE_SHOULD_USE_ABORT 1
#define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0
#ifndef IPPROTO_SCTP
#define IPPROTO_SCTP 132 /* the Official IANA number :-) */
#endif /* !IPPROTO_SCTP */
#define SCTP_MAX_DATA_BUNDLING 256
/* modular comparison */
/* See RFC 1982 for details. */
#define SCTP_SSN_GT(a, b) (((a < b) && ((uint16_t)(b - a) > (1U<<15))) || \
((a > b) && ((uint16_t)(a - b) < (1U<<15))))
#define SCTP_SSN_GE(a, b) (SCTP_SSN_GT(a, b) || (a == b))
#define SCTP_TSN_GT(a, b) (((a < b) && ((uint32_t)(b - a) > (1U<<31))) || \
((a > b) && ((uint32_t)(a - b) < (1U<<31))))
#define SCTP_TSN_GE(a, b) (SCTP_TSN_GT(a, b) || (a == b))
/* Mapping array manipulation routines */
#define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01)
#define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07))))
#define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff))
#define SCTP_CALC_TSN_TO_GAP(gap, tsn, mapping_tsn) do { \
if (tsn >= mapping_tsn) { \
gap = tsn - mapping_tsn; \
} else { \
gap = (MAX_TSN - mapping_tsn) + tsn + 1; \
} \
} while (0)
#define SCTP_RETRAN_DONE -1
#define SCTP_RETRAN_EXIT -2
/*
* This value defines the number of vtag block time wait entry's per list
* element. Each entry will take 2 4 byte ints (and of course the overhead
* of the next pointer as well). Using 15 as an example will yield * ((8 *
* 15) + 8) or 128 bytes of overhead for each timewait block that gets
* initialized. Increasing it to 31 would yeild 256 bytes per block.
*/
#define SCTP_NUMBER_IN_VTAG_BLOCK 15
/*
* If we use the STACK option, we have an array of this size head pointers.
* This array is mod'd the with the size to find which bucket and then all
* entries must be searched to see if the tag is in timed wait. If so we
* reject it.
*/
#define SCTP_STACK_VTAG_HASH_SIZE 32
/*
* Number of seconds of time wait for a vtag.
*/
#define SCTP_TIME_WAIT 60
/* How many micro seconds is the cutoff from
* local lan type rtt's
*/
/*
* We allow 900us for the rtt.
*/
#define SCTP_LOCAL_LAN_RTT 900
#define SCTP_LAN_UNKNOWN 0
#define SCTP_LAN_LOCAL 1
#define SCTP_LAN_INTERNET 2
#define SCTP_SEND_BUFFER_SPLITTING 0x00000001
#define SCTP_RECV_BUFFER_SPLITTING 0x00000002
/* The system retains a cache of free chunks such to
* cut down on calls the memory allocation system. There
* is a per association limit of free items and a overall
* system limit. If either one gets hit then the resource
* stops being cached.
*/
#define SCTP_DEF_ASOC_RESC_LIMIT 10
#define SCTP_DEF_SYSTEM_RESC_LIMIT 1000
/*-
* defines for socket lock states.
* Used by __APPLE__ and SCTP_SO_LOCK_TESTING
*/
#define SCTP_SO_LOCKED 1
#define SCTP_SO_NOT_LOCKED 0
#define SCTP_HOLDS_LOCK 1
#define SCTP_NOT_LOCKED 0
/*-
* For address locks, do we hold the lock?
*/
#define SCTP_ADDR_LOCKED 1
#define SCTP_ADDR_NOT_LOCKED 0
#define IN4_ISPRIVATE_ADDRESS(a) \
((((uint8_t *)&(a)->s_addr)[0] == 10) || \
((((uint8_t *)&(a)->s_addr)[0] == 172) && \
(((uint8_t *)&(a)->s_addr)[1] >= 16) && \
(((uint8_t *)&(a)->s_addr)[1] <= 32)) || \
((((uint8_t *)&(a)->s_addr)[0] == 192) && \
(((uint8_t *)&(a)->s_addr)[1] == 168)))
#define IN4_ISLOOPBACK_ADDRESS(a) \
((((uint8_t *)&(a)->s_addr)[0] == 127) && \
(((uint8_t *)&(a)->s_addr)[1] == 0) && \
(((uint8_t *)&(a)->s_addr)[2] == 0) && \
(((uint8_t *)&(a)->s_addr)[3] == 1))
#define IN4_ISLINKLOCAL_ADDRESS(a) \
((((uint8_t *)&(a)->s_addr)[0] == 169) && \
(((uint8_t *)&(a)->s_addr)[1] == 254))
#if defined(_KERNEL)
#define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x))
#define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x))
#endif
#if defined(_KERNEL) || defined(__Userspace__)
#define sctp_sowwakeup(inp, so) \
do { \
if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \
} else { \
sowwakeup(so); \
} \
} while (0)
#define sctp_sowwakeup_locked(inp, so) \
do { \
if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
SOCKBUF_UNLOCK(&((so)->so_snd)); \
inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \
} else { \
sowwakeup_locked(so); \
} \
} while (0)
#define sctp_sorwakeup(inp, so) \
do { \
if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \
} else { \
sorwakeup(so); \
} \
} while (0)
#define sctp_sorwakeup_locked(inp, so) \
do { \
if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \
SOCKBUF_UNLOCK(&((so)->so_rcv)); \
} else { \
sorwakeup_locked(so); \
} \
} while (0)
#endif /* _KERNEL || __Userspace__ */
#endif
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