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/* @(#) $Header: /tcpdump/master/tcpdump/sctpConstants.h,v 1.4 2003-06-03 23:49:23 guy Exp $ (LBL) */
/* SCTP reference Implementation Copyright (C) 1999 Cisco And Motorola
*
* 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.
*
* 3. Neither the name of Cisco nor of Motorola may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* This file is part of the SCTP reference Implementation
*
*
* Please send any bug reports or fixes you make to one of the following email
* addresses:
*
* rstewar1@email.mot.com
* kmorneau@cisco.com
* qxie1@email.mot.com
*
* Any bugs reported given to us we will try to fix... any fixes shared will
* be incorperated into the next SCTP release.
*/
#ifndef __sctpConstants_h__
#define __sctpConstants_h__
/* If you wish to use MD5 instead of SLA uncomment the line
* below. Why you would like to do this:
* a) There may be IPR on SHA-1, or so the FIP-180-1 page says,
* b) MD5 is 3 times faster (has coded here).
*
* The disadvantage is, it is thought that MD5 has been
* cracked... see RFC2104.
*/
/*#define USE_MD5 1*/
/* 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
#define MAX_SEQ 0xffff
/* 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
/* default max I can burst out after a fast retransmit */
#define SCTP_DEF_MAX_BURST 4
/* Packet transmit states in the sent
* field in the SCTP_transmitOnQueue struct
*/
#define SCTP_DATAGRAM_UNSENT 0
#define SCTP_DATAGRAM_SENT 1
#define SCTP_DATAGRAM_RESEND1 2 /* not used */
#define SCTP_DATAGRAM_RESEND2 3 /* not used */
#define SCTP_DATAGRAM_RESEND3 4 /* not used */
#define SCTP_DATAGRAM_RESEND 5
#define SCTP_DATAGRAM_ACKED 10010
#define SCTP_DATAGRAM_INBOUND 10011
#define SCTP_READY_TO_TRANSMIT 10012
#define SCTP_DATAGRAM_MARKED 20010
#define MAX_FSID 64 /* debug 5 ints used for cc dynamic tracking */
/* The valid defines for all message
* types know to SCTP. 0 is reserved
*/
#define SCTP_MSGTYPE_MASK 0xff
#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_ERR 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
#define SCTP_FORWARD_CUM_TSN 0xc0
#define SCTP_RELIABLE_CNTL 0xc1
#define SCTP_RELIABLE_CNTL_ACK 0xc2
/* ABORT and SHUTDOWN COMPLETE FLAG */
#define SCTP_HAD_NO_TCB 0x01
/* Data Chuck Specific Flags */
#define SCTP_DATA_FRAG_MASK 0x03
#define SCTP_DATA_MIDDLE_FRAG 0x00
#define SCTP_DATA_LAST_FRAG 0x01
#define SCTP_DATA_FIRST_FRAG 0x02
#define SCTP_DATA_NOT_FRAG 0x03
#define SCTP_DATA_UNORDERED 0x04
#define SCTP_CRC_ENABLE_BIT 0x01 /* lower bit of reserved */
#define isSCTPControl(a) (a->chunkID != SCTP_DATA)
#define isSCTPData(a) (a->chunkID == SCTP_DATA)
/* sctp parameter types for init/init-ack */
#define SCTP_IPV4_PARAM_TYPE 0x0005
#define SCTP_IPV6_PARAM_TYPE 0x0006
#define SCTP_RESPONDER_COOKIE 0x0007
#define SCTP_UNRECOG_PARAM 0x0008
#define SCTP_COOKIE_PRESERVE 0x0009
#define SCTP_HOSTNAME_VIA_DNS 0x000b
#define SCTP_RESTRICT_ADDR_TO 0x000c
#define SCTP_ECN_I_CAN_DO_ECN 0x8000
#define SCTP_OPERATION_SUCCEED 0x4001
#define SCTP_ERROR_NOT_EXECUTED 0x4002
#define SCTP_UNRELIABLE_STRM 0xc000
#define SCTP_ADD_IP_ADDRESS 0xc001
#define SCTP_DEL_IP_ADDRESS 0xc002
#define SCTP_STRM_FLOW_LIMIT 0xc003
#define SCTP_PARTIAL_CSUM 0xc004
#define SCTP_ERROR_CAUSE_TLV 0xc005
#define SCTP_MIT_STACK_NAME 0xc006
#define SCTP_SETADDRESS_PRIMARY 0xc007
/* bits for TOS field */
#define SCTP_ECT_BIT 0x02
#define SCTP_CE_BIT 0x01
/* error codes */
#define SCTP_OP_ERROR_NO_ERROR 0x0000
#define SCTP_OP_ERROR_INV_STRM 0x0001
#define SCTP_OP_ERROR_MISS_PARAM 0x0002
#define SCTP_OP_ERROR_STALE_COOKIE 0x0003
#define SCTP_OP_ERROR_NO_RESOURCE 0x0004
#define SCTP_OP_ERROR_DNS_FAILED 0x0005
#define SCTP_OP_ERROR_UNK_CHUNK 0x0006
#define SCTP_OP_ERROR_INV_PARAM 0x0007
#define SCTP_OP_ERROR_UNK_PARAM 0x0008
#define SCTP_OP_ERROR_NO_USERD 0x0009
#define SCTP_OP_ERROR_COOKIE_SHUT 0x000a
#define SCTP_OP_ERROR_DELETE_LAST 0x000b
#define SCTP_OP_ERROR_RESOURCE_SHORT 0x000c
#define SCTP_MAX_ERROR_CAUSE 12
/* empty error causes i.e. nothing but the cause
* are SCTP_OP_ERROR_NO_RESOURCE, SCTP_OP_ERROR_INV_PARAM,
* SCTP_OP_ERROR_COOKIE_SHUT.
*/
/* parameter for Heart Beat */
#define HEART_BEAT_PARAM 0x0001
/* send options for SCTP
*/
#define SCTP_ORDERED_DELIVERY 0x01
#define SCTP_NON_ORDERED_DELIVERY 0x02
#define SCTP_DO_CRC16 0x08
#define SCTP_MY_ADDRESS_ONLY 0x10
/* below turns off above */
#define SCTP_FLEXIBLE_ADDRESS 0x20
#define SCTP_NO_HEARTBEAT 0x40
/* mask to get sticky */
#define SCTP_STICKY_OPTIONS_MASK 0x0c
/* MTU discovery flags */
#define SCTP_DONT_FRAGMENT 0x0100
#define SCTP_FRAGMENT_OK 0x0200
/* SCTP state defines for internal state machine */
#define SCTP_STATE_EMPTY 0x0000
#define SCTP_STATE_INUSE 0x0001
#define SCTP_STATE_COOKIE_WAIT 0x0002
#define SCTP_STATE_COOKIE_SENT 0x0004
#define SCTP_STATE_OPEN 0x0008
#define SCTP_STATE_SHUTDOWN 0x0010
#define SCTP_STATE_SHUTDOWN_RECV 0x0020
#define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040
#define SCTP_STATE_SHUTDOWN_PEND 0x0080
#define SCTP_STATE_MASK 0x007f
/* SCTP reachability state for each address */
#define SCTP_ADDR_NOT_REACHABLE 1
#define SCTP_ADDR_REACHABLE 2
#define SCTP_ADDR_NOHB 4
#define SCTP_ADDR_BEING_DELETED 8
/* How long a cookie lives */
#define SCTP_DEFAULT_COOKIE_LIFE 60 /* seconds */
/* resource limit of streams */
#define MAX_SCTP_STREAMS 2048
/* guess at how big to make the TSN mapping array */
#define SCTP_STARTING_MAPARRAY 10000
/* Here we define the timer types used
* by the implementation has
* 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_SHUTDOWN 3
#define SCTP_TIMER_HEARTBEAT 4
#define SCTP_TIMER_PMTU 5
/* number of timer types in the base SCTP
* structure used in the set/get and has
* the base default.
*/
#define SCTP_NUM_TMRS 6
#define SCTP_IPV4_ADDRESS 2
#define SCTP_IPV6_ADDRESS 4
/* timer types */
#define SctpTimerTypeNone 0
#define SctpTimerTypeSend 1
#define SctpTimerTypeInit 2
#define SctpTimerTypeRecv 3
#define SctpTimerTypeShutdown 4
#define SctpTimerTypeHeartbeat 5
#define SctpTimerTypeCookie 6
#define SctpTimerTypeNewCookie 7
#define SctpTimerTypePathMtuRaise 8
#define SctpTimerTypeShutdownAck 9
#define SctpTimerTypeRelReq 10
/* Here are the timer directives given to the
* user provided function
*/
#define SCTP_TIMER_START 1
#define SCTP_TIMER_STOP 2
/* running flag states in timer structure */
#define SCTP_TIMER_IDLE 0x0
#define SCTP_TIMER_EXPIRED 0x1
#define SCTP_TIMER_RUNNING 0x2
/* number of simultaneous timers running */
#define SCTP_MAX_NET_TIMERS 6 /* base of where net timers start */
#define SCTP_NUMBER_TIMERS 12 /* allows up to 6 destinations */
/* Of course we really don't collect stale cookies, being
* folks of decerning taste. However we do count them, if
* we get to many before the association comes up.. we
* give up. Below is the constant that dictates when
* we give it up...this is a implemenation dependant
* treatment. In ours we do not ask for a extension of
* time, but just retry this many times...
*/
#define SCTP_MAX_STALE_COOKIES_I_COLLECT 10
/* 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 ammounts.
*/
/* constants for type of set */
#define SCTP_MAXATTEMPT_INIT 2
#define SCTP_MAXATTEMPT_SEND 3
/* Here we define the default timers and the
* default number of attemts we make for
* each respective side (send/init).
*/
/* init timer def = 3sec */
#define SCTP_INIT_SEC 3
#define SCTP_INIT_NSEC 0
/* send timer def = 3 seconds */
#define SCTP_SEND_SEC 1
#define SCTP_SEND_NSEC 0
/* recv timer def = 200ms (in nsec) */
#define SCTP_RECV_SEC 0
#define SCTP_RECV_NSEC 200000000
/* 30 seconds + RTO */
#define SCTP_HB_SEC 30
#define SCTP_HB_NSEC 0
/* 300 ms */
#define SCTP_SHUTDOWN_SEC 0
#define SCTP_SHUTDOWN_NSEC 300000000
#define SCTP_RTO_UPPER_BOUND 60000000 /* 60 sec in micro-second's */
#define SCTP_RTO_UPPER_BOUND_SEC 60 /* for the init timer */
#define SCTP_RTO_LOWER_BOUND 1000000 /* 1 sec in micro-sec's */
#define SCTP_DEF_MAX_INIT 8
#define SCTP_DEF_MAX_SEND 10
#define SCTP_DEF_PMTU_RAISE 600 /* 10 Minutes between raise attempts */
#define SCTP_DEF_PMTU_MIN 600
#define SCTP_MSEC_IN_A_SEC 1000
#define SCTP_USEC_IN_A_SEC 1000000
#define SCTP_NSEC_IN_A_SEC 1000000000
/* Events that SCTP will look for, these
* are or'd together to declare what SCTP
* wants. Each select mask/poll list should be
* set for the fd, if the bit is on.
*/
#define SCTP_EVENT_READ 0x000001
#define SCTP_EVENT_WRITE 0x000002
#define SCTP_EVENT_EXCEPT 0x000004
/* The following constant is a value for this
* particular implemenation. It is quite arbitrary and
* is used to limit how much data will be queued up to
* a sender, waiting for cwnd to be larger than flightSize.
* All implementations will need this protection is some
* way due to buffer size constraints.
*/
#define SCTP_MAX_OUTSTANDING_DG 10000
/* This constant (SCTP_MAX_READBUFFER) define
* how big the read/write buffer is
* when we enter the fd event notification
* the buffer is put on the stack, so the bigger
* it is the more stack you chew up, however it
* has got to be big enough to handle the bigest
* message this O/S will send you. In solaris
* with sockets (not TLI) we end up at a value
* of 64k. In TLI we could do partial reads to
* get it all in with less hassel.. but we
* write to sockets for generality.
*/
#define SCTP_MAX_READBUFFER 65536
#define SCTP_ADDRMAX 60
/* amount peer is obligated to have in rwnd or
* I will abort
*/
#define SCTP_MIN_RWND 1500
#define SCTP_WINDOW_MIN 1500 /* smallest rwnd can be */
#define SCTP_WINDOW_MAX 1048576 /* biggest I can grow rwnd to
* My playing around suggests a
* value greater than 64k does not
* do much, I guess via the kernel
* limitations on the stream/socket.
*/
#define SCTP_MAX_BUNDLE_UP 256 /* max number of chunks I can bundle */
/* I can handle a 1meg re-assembly */
#define SCTP_DEFAULT_MAXMSGREASM 1048576
#define SCTP_DEFAULT_MAXWINDOW 32768 /* default rwnd size */
#define SCTP_DEFAULT_MAXSEGMENT 1500 /* MTU size, this is the default
* to which we set the smallestMTU
* size to. This governs what is the
* largest size we will use, of course
* PMTU will raise this up to
* the largest interface MTU or the
* ceiling below if there is no
* SIOCGIFMTU.
*/
#ifdef LYNX
#define DEFAULT_MTU_CEILING 1500 /* Since Lynx O/S is brain dead
* in the way it handles the
* raw IP socket, insisting
* on makeing its own IP
* header, we limit the growth
* to that of the e-net size
*/
#else
#define DEFAULT_MTU_CEILING 2048 /* If no SIOCGIFMTU, highest value
* to raise the PMTU to, i.e.
* don't try to raise above this
* value. Tune this per your
* largest MTU interface if your
* system does not support the
* SIOCGIFMTU ioctl.
*/
#endif
#define SCTP_DEFAULT_MINSEGMENT 512 /* MTU size ... if no mtu disc */
#define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */
/* This is how long a secret lives, NOT how long a cookie lives */
#define SCTP_HOW_LONG_COOKIE_LIVE 3600 /* how many seconds the current secret will live */
#define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */
#define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */
#ifdef USE_MD5
#define SCTP_SIGNATURE_SIZE 16 /* size of a MD5 signature */
#else
#define SCTP_SIGNATURE_SIZE 20 /* size of a SLA-1 signature */
#endif
/* Here are the notification constants
* that the code and upper layer will get
*/
/* association is up */
#define SCTP_NOTIFY_ASSOC_UP 1
/* association is down */
#define SCTP_NOTIFY_ASSOC_DOWN 2
/* interface on a association is down
* and out of consideration for selection.
*/
#define SCTP_NOTIFY_INTF_DOWN 3
/* interface on a association is up
* and now back in consideration for selection.
*/
#define SCTP_NOTIFY_INTF_UP 4
/* The given datagram cannot be delivered
* to the peer, this will probably be followed
* by a SCTP_NOTFIY_ASSOC_DOWN.
*/
#define SCTP_NOTIFY_DG_FAIL 5
/* Sent dg on non-open stream extreme code error!
*/
#define SCTP_NOTIFY_STRDATA_ERR 6
#define SCTP_NOTIFY_ASSOC_ABORTED 7
/* The stream ones are not used yet, but could
* be when a association opens.
*/
#define SCTP_NOTIFY_PEER_OPENED_STR 8
#define SCTP_NOTIFY_STREAM_OPENED_OK 9
/* association sees a restart event */
#define SCTP_NOTIFY_ASSOC_RESTART 10
/* a user requested HB returned */
#define SCTP_NOTIFY_HB_RESP 11
/* a result from a REL-REQ */
#define SCTP_NOTIFY_RELREQ_RESULT_OK 12
#define SCTP_NOTIFY_RELREQ_RESULT_FAILED 13
/* clock variance is 10ms or 10,000 us's */
#define SCTP_CLOCK_GRAINULARITY 10000
#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
*/
#define SCTP_NUM_FDS 3
/* raw IP filedescriptor */
#define SCTP_FD_IP 0
/* raw ICMP filedescriptor */
#define SCTP_FD_ICMP 1
/* processes contact me for requests here */
#define SCTP_REQUEST 2
#define SCTP_DEAMON_PORT 9899
/* Deamon registration message types/responses */
#define DEAMON_REGISTER 0x01
#define DEAMON_REGISTER_ACK 0x02
#define DEAMON_DEREGISTER 0x03
#define DEAMON_DEREGISTER_ACK 0x04
#define DEAMON_CHECKADDR_LIST 0x05
#define DEAMON_MAGIC_VER_LEN 0xff
/* max times I will attempt to send a message to deamon */
#define SCTP_MAX_ATTEMPTS_AT_DEAMON 5
#define SCTP_TIMEOUT_IN_POLL_FOR_DEAMON 1500 /* 1.5 seconds */
/* modular comparison */
/* True if a > b (mod = M) */
#define compare_with_wrap(a, b, M) ((a > b) && ((a - b) < (M >> 1))) || \
((b > a) && ((b - a) > (M >> 1)))
#ifndef TIMEVAL_TO_TIMESPEC
#define TIMEVAL_TO_TIMESPEC(tv, ts) \
{ \
(ts)->tv_sec = (tv)->tv_sec; \
(ts)->tv_nsec = (tv)->tv_usec * 1000; \
}
#endif
/* pegs */
#define SCTP_NUMBER_OF_PEGS 21
/* peg index's */
#define SCTP_PEG_SACKS_SEEN 0
#define SCTP_PEG_SACKS_SENT 1
#define SCTP_PEG_TSNS_SENT 2
#define SCTP_PEG_TSNS_RCVD 3
#define SCTP_DATAGRAMS_SENT 4
#define SCTP_DATAGRAMS_RCVD 5
#define SCTP_RETRANTSN_SENT 6
#define SCTP_DUPTSN_RECVD 7
#define SCTP_HBR_RECV 8
#define SCTP_HBA_RECV 9
#define SCTP_HB_SENT 10
#define SCTP_DATA_DG_SENT 11
#define SCTP_DATA_DG_RECV 12
#define SCTP_TMIT_TIMER 13
#define SCTP_RECV_TIMER 14
#define SCTP_HB_TIMER 15
#define SCTP_FAST_RETRAN 16
#define SCTP_PEG_TSNS_READ 17
#define SCTP_NONE_LFT_TO 18
#define SCTP_NONE_LFT_RWND 19
#define SCTP_NONE_LFT_CWND 20
#endif
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