42551e993f
- moved away from ifn/ifa access to sctp_ifa/sctp_ifn built and managed by the add-ip code. - cleaned up add-ip code to use the iterator - made iterator be a thread, which enables auto-asconf now. - rewrote and cleaned up source address selection (also made it use new structures). - Fixed a couple of memory leaks. - DACK now settable as to how many packets to delay as well as time. - connectx() to latest socket API, new associd arg. - Fixed issue with revoking and loosing potential to send when we inflate the flight size. We now inflate the cwnd too and deflate it later when the revoked chunk is sent or acked. - Got rid of some temp debug code - src addr selection moved to a common file (sctp_output.c) - Support for simple VRF's (we have support for multi-vfr via compile switch that is scrubbed from BSD but we won't need multi-vrf until we first get VRF :-D) - Rest of mib work for address information now done - Limit number of addresses in INIT/INIT-ACK to a #def (30). Reviewed by: gnn
1028 lines
34 KiB
C
1028 lines
34 KiB
C
/*-
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* Copyright (c) 2001-2007, Cisco Systems, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* a) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* b) Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the distribution.
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*
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* c) Neither the name of Cisco Systems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* $KAME: sctp_constants.h,v 1.17 2005/03/06 16:04:17 itojun Exp $ */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef __sctp_constants_h__
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#define __sctp_constants_h__
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/* Number of packets to get before sack sent by default */
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#define SCTP_DEFAULT_SACK_FREQ 2
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/* Address limit - This variable is calculated
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* based on an 1500 byte mtu. We take out 100 bytes
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* for the cookie, 40 bytes for a v6 header and 32
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* bytes for the init structure. A second init structure
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* for the init-ack and then finally a third one for the
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* imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes.
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* This leaves 1264 bytes for addresses. Now whatever we
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* send in the INIT() we need to allow to get back in the
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* INIT-ACK plus all the values from INIT and INIT-ACK
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* listed in the cookie. Plus we need some overhead for
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* maybe copied parameters in the COOKIE. If we
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* allow 20 addresses, and each side has 20 V6 addresses
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* that will be 400 bytes. In the INIT-ACK we will
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* see the INIT-ACK 400 + 800 in the cookie. This leaves
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* 64 bytes slack for misc things in the cookie. Otherwise
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* we need to allow IP fragmentation.. which I believe
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* the INIT-ACK and COOKIE do, I don't think we do that
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* to the INIT though. So the max you could make this
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* value is 60 addresses.
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*/
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#define SCTP_ADDRESS_LIMIT 20
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/* Number of addresses where we just skip the counting */
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#define SCTP_COUNT_LIMIT 40
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/* Number of ticks to delay before running
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* iterator on an address change.
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*/
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#define SCTP_ADDRESS_TICK_DELAY 2
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#define SCTP_VERSION_STRING "KAME-BSD 1.1"
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/* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */
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#define SCTP_AUDIT_SIZE 256
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#define SCTP_STAT_LOG_SIZE 80000
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#define SCTP_USE_THREAD_BASED_ITERATOR 1
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#define SCTP_KTRHEAD_NAME "sctp_iterator"
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#define SCTP_KTHREAD_PAGES 2
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/* If you support Multi-VRF how big to
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* make the initial array of VRF's to.
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*/
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#define SCTP_DEFAULT_VRF_SIZE 4
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/* Places that CWND log can happen from */
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#define SCTP_CWND_LOG_FROM_FR 1
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#define SCTP_CWND_LOG_FROM_RTX 2
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#define SCTP_CWND_LOG_FROM_BRST 3
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#define SCTP_CWND_LOG_FROM_SS 4
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#define SCTP_CWND_LOG_FROM_CA 5
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#define SCTP_CWND_LOG_FROM_SAT 6
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#define SCTP_BLOCK_LOG_INTO_BLK 7
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#define SCTP_BLOCK_LOG_OUTOF_BLK 8
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#define SCTP_BLOCK_LOG_CHECK 9
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#define SCTP_STR_LOG_FROM_INTO_STRD 10
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#define SCTP_STR_LOG_FROM_IMMED_DEL 11
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#define SCTP_STR_LOG_FROM_INSERT_HD 12
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#define SCTP_STR_LOG_FROM_INSERT_MD 13
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#define SCTP_STR_LOG_FROM_INSERT_TL 14
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#define SCTP_STR_LOG_FROM_MARK_TSN 15
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#define SCTP_STR_LOG_FROM_EXPRS_DEL 16
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#define SCTP_FR_LOG_BIGGEST_TSNS 17
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#define SCTP_FR_LOG_STRIKE_TEST 18
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#define SCTP_FR_LOG_STRIKE_CHUNK 19
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#define SCTP_FR_T3_TIMEOUT 20
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#define SCTP_MAP_PREPARE_SLIDE 21
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#define SCTP_MAP_SLIDE_FROM 22
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#define SCTP_MAP_SLIDE_RESULT 23
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#define SCTP_MAP_SLIDE_CLEARED 24
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#define SCTP_MAP_SLIDE_NONE 25
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#define SCTP_FR_T3_MARK_TIME 26
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#define SCTP_FR_T3_MARKED 27
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#define SCTP_FR_T3_STOPPED 28
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#define SCTP_FR_MARKED 30
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#define SCTP_CWND_LOG_NOADV_SS 31
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#define SCTP_CWND_LOG_NOADV_CA 32
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#define SCTP_MAX_BURST_APPLIED 33
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#define SCTP_MAX_IFP_APPLIED 34
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#define SCTP_MAX_BURST_ERROR_STOP 35
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#define SCTP_INCREASE_PEER_RWND 36
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#define SCTP_DECREASE_PEER_RWND 37
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#define SCTP_SET_PEER_RWND_VIA_SACK 38
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#define SCTP_LOG_MBCNT_INCREASE 39
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#define SCTP_LOG_MBCNT_DECREASE 40
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#define SCTP_LOG_MBCNT_CHKSET 41
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#define SCTP_LOG_NEW_SACK 42
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#define SCTP_LOG_TSN_ACKED 43
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#define SCTP_LOG_TSN_REVOKED 44
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#define SCTP_LOG_LOCK_TCB 45
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#define SCTP_LOG_LOCK_INP 46
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#define SCTP_LOG_LOCK_SOCK 47
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#define SCTP_LOG_LOCK_SOCKBUF_R 48
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#define SCTP_LOG_LOCK_SOCKBUF_S 49
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#define SCTP_LOG_LOCK_CREATE 50
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#define SCTP_LOG_INITIAL_RTT 51
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#define SCTP_LOG_RTTVAR 52
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#define SCTP_LOG_SBALLOC 53
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#define SCTP_LOG_SBFREE 54
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#define SCTP_LOG_SBRESULT 55
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#define SCTP_FR_DUPED 56
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#define SCTP_FR_MARKED_EARLY 57
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#define SCTP_FR_CWND_REPORT 58
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#define SCTP_FR_CWND_REPORT_START 59
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#define SCTP_FR_CWND_REPORT_STOP 60
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#define SCTP_CWND_LOG_FROM_SEND 61
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#define SCTP_CWND_INITIALIZATION 62
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#define SCTP_CWND_LOG_FROM_T3 63
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#define SCTP_CWND_LOG_FROM_SACK 64
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#define SCTP_CWND_LOG_NO_CUMACK 65
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#define SCTP_CWND_LOG_FROM_RESEND 66
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#define SCTP_FR_LOG_CHECK_STRIKE 67
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#define SCTP_SEND_NOW_COMPLETES 68
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#define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69
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#define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70
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#define SCTP_LOG_FREE_SENT 71
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#define SCTP_NAGLE_APPLIED 72
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#define SCTP_NAGLE_SKIPPED 73
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#define SCTP_WAKESND_FROM_SACK 74
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#define SCTP_WAKESND_FROM_FWDTSN 75
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#define SCTP_NOWAKE_FROM_SACK 76
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#define SCTP_CWNDLOG_PRESEND 77
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#define SCTP_CWNDLOG_ENDSEND 78
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#define SCTP_AT_END_OF_SACK 79
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#define SCTP_REASON_FOR_SC 80
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#define SCTP_BLOCK_LOG_INTO_BLKA 81
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#define SCTP_ENTER_USER_RECV 82
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#define SCTP_USER_RECV_SACKS 83
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#define SCTP_SORECV_BLOCKSA 84
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#define SCTP_SORECV_BLOCKSB 85
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#define SCTP_SORECV_DONE 86
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#define SCTP_SACK_RWND_UPDATE 87
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#define SCTP_SORECV_ENTER 88
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#define SCTP_SORECV_ENTERPL 89
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#define SCTP_MBUF_INPUT 90
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#define SCTP_MBUF_IALLOC 91
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#define SCTP_MBUF_IFREE 92
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#define SCTP_MBUF_ICOPY 93
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#define SCTP_SORCV_FREECTL 94
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#define SCTP_SORCV_DOESCPY 95
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#define SCTP_SORCV_DOESLCK 96
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#define SCTP_SORCV_DOESADJ 97
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#define SCTP_SORCV_BOTWHILE 98
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#define SCTP_SORCV_PASSBF 99
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#define SCTP_SORCV_ADJD 100
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#define SCTP_UNKNOWN_MAX 101
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#define SCTP_RANDY_STUFF 102
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#define SCTP_RANDY_STUFF1 103
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#define SCTP_STRMOUT_LOG_ASSIGN 104
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#define SCTP_STRMOUT_LOG_SEND 105
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#define SCTP_FLIGHT_LOG_DOWN 106
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#define SCTP_FLIGHT_LOG_UP 107
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#define SCTP_LOG_MAX_TYPES 108
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/*
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* To turn on various logging, you must first define SCTP_STAT_LOGGING. Then
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* to get something to log you define one of the logging defines i.e.
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*
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* SCTP_CWND_LOGGING SCTP_BLK_LOGGING SCTP_STR_LOGGING SCTP_FR_LOGGING
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*
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* Any one or a combination of the logging can be turned on.
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*/
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#define SCTP_LOG_EVENT_UNKNOWN 0
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#define SCTP_LOG_EVENT_CWND 1
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#define SCTP_LOG_EVENT_BLOCK 2
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#define SCTP_LOG_EVENT_STRM 3
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#define SCTP_LOG_EVENT_FR 4
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#define SCTP_LOG_EVENT_MAP 5
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#define SCTP_LOG_EVENT_MAXBURST 6
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#define SCTP_LOG_EVENT_RWND 7
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#define SCTP_LOG_EVENT_MBCNT 8
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#define SCTP_LOG_EVENT_SACK 9
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#define SCTP_LOG_LOCK_EVENT 10
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#define SCTP_LOG_EVENT_RTT 11
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#define SCTP_LOG_EVENT_SB 12
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#define SCTP_LOG_EVENT_NAGLE 13
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#define SCTP_LOG_EVENT_WAKE 14
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#define SCTP_LOG_MISC_EVENT 15
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#define SCTP_LOG_EVENT_CLOSE 16
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#define SCTP_LOG_EVENT_MBUF 17
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#define SCTP_LOG_MAX_EVENT 18
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#define SCTP_LOCK_UNKNOWN 2
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/* number of associations by default for zone allocation */
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#define SCTP_MAX_NUM_OF_ASOC 40000
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/* how many addresses per assoc remote and local */
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#define SCTP_SCALE_FOR_ADDR 2
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/* default AUTO_ASCONF mode enable(1)/disable(0) value (sysctl) */
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#if defined (__APPLE__) && !defined(SCTP_APPLE_AUTO_ASCONF)
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#define SCTP_DEFAULT_AUTO_ASCONF 0
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#else
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#define SCTP_DEFAULT_AUTO_ASCONF 1
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#endif
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/*
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* Theshold for rwnd updates, we have to read (sb_hiwat >>
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* SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a
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* window update sack. When we look, we compare the last rwnd we sent vs the
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* current rwnd. It too must be greater than this value. Using 3 divdes the
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* hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need
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* to read 8k. This seems about right.. I hope :-D.. we do set a
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* min of a MTU on it so if the rwnd is real small we will insist
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* on a full MTU of 1500 bytes.
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*/
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#define SCTP_RWND_HIWAT_SHIFT 3
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/* How much of the rwnd must the
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* message be taking up to start partial delivery.
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* We calculate this by shifing the hi_water (recv_win)
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* left the following .. set to 1, when a message holds
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* 1/2 the rwnd. If we set it to 2 when a message holds
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* 1/4 the rwnd...etc..
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*/
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#define SCTP_PARTIAL_DELIVERY_SHIFT 1
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/* Minimum number of bytes read by user before we
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* condsider doing a rwnd update
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*/
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#define SCTP_MIN_READ_BEFORE_CONSIDERING 3000
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/*
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* default HMAC for cookies, etc... use one of the AUTH HMAC id's
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* SCTP_HMAC is the HMAC_ID to use
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* SCTP_SIGNATURE_SIZE is the digest length
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*/
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#define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1
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#define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1
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#define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE
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/* DEFINE HERE WHAT CRC YOU WANT TO USE */
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#define SCTP_USECRC_RFC2960 1
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/* #define SCTP_USECRC_FLETCHER 1 */
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/* #define SCTP_USECRC_SSHCRC32 1 */
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/* #define SCTP_USECRC_FASTCRC32 1 */
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/* #define SCTP_USECRC_CRC32 1 */
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/* #define SCTP_USECRC_TCP32 1 */
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/* #define SCTP_USECRC_CRC16SMAL 1 */
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/* #define SCTP_USECRC_CRC16 1 */
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/* #define SCTP_USECRC_MODADLER 1 */
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#ifndef SCTP_ADLER32_BASE
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#define SCTP_ADLER32_BASE 65521
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#endif
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/*
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* the SCTP protocol signature this includes the version number encoded in
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* the last 4 bits of the signature.
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*/
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#define PROTO_SIGNATURE_A 0x30000000
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#define SCTP_VERSION_NUMBER 0x3
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#define MAX_TSN 0xffffffff
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#define MAX_SEQ 0xffff
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/* how many executions every N tick's */
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#define SCTP_ITERATOR_MAX_AT_ONCE 20
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/* number of clock ticks between iterator executions */
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#define SCTP_ITERATOR_TICKS 1
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/*
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* option: If you comment out the following you will receive the old behavior
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* of obeying cwnd for the fast retransmit algorithm. With this defined a FR
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* happens right away with-out waiting for the flightsize to drop below the
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* cwnd value (which is reduced by the FR to 1/2 the inflight packets).
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*/
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#define SCTP_IGNORE_CWND_ON_FR 1
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/*
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* Adds implementors guide behavior to only use newest highest update in SACK
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* gap ack's to figure out if you need to stroke a chunk for FR.
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*/
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#define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1
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/* default max I can burst out after a fast retransmit */
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#define SCTP_DEF_MAX_BURST 4
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/* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */
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#define SCTP_FIRST_MBUF_RESV 68
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/* Packet transmit states in the sent field */
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#define SCTP_DATAGRAM_UNSENT 0
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#define SCTP_DATAGRAM_SENT 1
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#define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may
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* hit this value) */
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#define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may
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* hit this value) */
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#define SCTP_DATAGRAM_RESEND 4
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#define SCTP_DATAGRAM_ACKED 10010
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#define SCTP_DATAGRAM_INBOUND 10011
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#define SCTP_READY_TO_TRANSMIT 10012
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#define SCTP_DATAGRAM_MARKED 20010
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#define SCTP_FORWARD_TSN_SKIP 30010
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/* chunk output send from locations */
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#define SCTP_OUTPUT_FROM_USR_SEND 0
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#define SCTP_OUTPUT_FROM_T3 1
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#define SCTP_OUTPUT_FROM_INPUT_ERROR 2
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#define SCTP_OUTPUT_FROM_CONTROL_PROC 3
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#define SCTP_OUTPUT_FROM_SACK_TMR 4
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#define SCTP_OUTPUT_FROM_SHUT_TMR 5
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#define SCTP_OUTPUT_FROM_HB_TMR 6
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#define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7
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#define SCTP_OUTPUT_FROM_ASCONF_TMR 8
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#define SCTP_OUTPUT_FROM_STRRST_TMR 9
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#define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10
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#define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11
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#define SCTP_OUTPUT_FROM_STRRST_REQ 12
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#define SCTP_OUTPUT_FROM_USR_RCVD 13
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#define SCTP_OUTPUT_FROM_COOKIE_ACK 14
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#define SCTP_OUTPUT_FROM_DRAIN 15
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/* SCTP chunk types are moved sctp.h for application (NAT, FW) use */
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/* align to 32-bit sizes */
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#define SCTP_SIZE32(x) ((((x)+3) >> 2) << 2)
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#define IS_SCTP_CONTROL(a) ((a)->chunk_type != SCTP_DATA)
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#define IS_SCTP_DATA(a) ((a)->chunk_type == SCTP_DATA)
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|
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/* SCTP parameter types */
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/*************0x0000 series*************/
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#define SCTP_HEARTBEAT_INFO 0x0001
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#define SCTP_IPV4_ADDRESS 0x0005
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#define SCTP_IPV6_ADDRESS 0x0006
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#define SCTP_STATE_COOKIE 0x0007
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#define SCTP_UNRECOG_PARAM 0x0008
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#define SCTP_COOKIE_PRESERVE 0x0009
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#define SCTP_HOSTNAME_ADDRESS 0x000b
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#define SCTP_SUPPORTED_ADDRTYPE 0x000c
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/* draft-ietf-stewart-strreset-xxx */
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#define SCTP_STR_RESET_OUT_REQUEST 0x000d
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#define SCTP_STR_RESET_IN_REQUEST 0x000e
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#define SCTP_STR_RESET_TSN_REQUEST 0x000f
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#define SCTP_STR_RESET_RESPONSE 0x0010
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#define SCTP_MAX_RESET_PARAMS 2
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#define SCTP_STREAM_RESET_TSN_DELTA 0x1000
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/*************0x4000 series*************/
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/*************0x8000 series*************/
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#define SCTP_ECN_CAPABLE 0x8000
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/* ECN Nonce: draft-ladha-sctp-ecn-nonce */
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#define SCTP_ECN_NONCE_SUPPORTED 0x8001
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/* draft-ietf-tsvwg-auth-xxx */
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#define SCTP_RANDOM 0x8002
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#define SCTP_CHUNK_LIST 0x8003
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#define SCTP_HMAC_LIST 0x8004
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/*
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* draft-ietf-tsvwg-addip-sctp-xx param=0x8008 len=0xNNNN Byte | Byte | Byte
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* | Byte Byte | Byte ...
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*
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* Where each byte is a chunk type extension supported. For example, to support
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* all chunks one would have (in hex):
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*
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* 80 01 00 09 C0 C1 80 81 82 00 00 00
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*
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* Has the parameter. C0 = PR-SCTP (RFC3758) C1, 80 = ASCONF (addip draft) 81
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* = Packet Drop 82 = Stream Reset 83 = Authentication
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*/
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#define SCTP_SUPPORTED_CHUNK_EXT 0x8008
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/*************0xC000 series*************/
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#define SCTP_PRSCTP_SUPPORTED 0xc000
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/* draft-ietf-tsvwg-addip-sctp */
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#define SCTP_ADD_IP_ADDRESS 0xc001
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#define SCTP_DEL_IP_ADDRESS 0xc002
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#define SCTP_ERROR_CAUSE_IND 0xc003
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#define SCTP_SET_PRIM_ADDR 0xc004
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#define SCTP_SUCCESS_REPORT 0xc005
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#define SCTP_ULP_ADAPTATION 0xc006
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/* Notification error codes */
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#define SCTP_NOTIFY_DATAGRAM_UNSENT 0x0001
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#define SCTP_NOTIFY_DATAGRAM_SENT 0x0002
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#define SCTP_FAILED_THRESHOLD 0x0004
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#define SCTP_HEARTBEAT_SUCCESS 0x0008
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#define SCTP_RESPONSE_TO_USER_REQ 0x000f
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#define SCTP_INTERNAL_ERROR 0x0010
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#define SCTP_SHUTDOWN_GUARD_EXPIRES 0x0020
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#define SCTP_RECEIVED_SACK 0x0040
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#define SCTP_PEER_FAULTY 0x0080
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/* bits for TOS field */
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#define SCTP_ECT0_BIT 0x02
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#define SCTP_ECT1_BIT 0x01
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#define SCTP_CE_BITS 0x03
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/* below turns off above */
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#define SCTP_FLEXIBLE_ADDRESS 0x20
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#define SCTP_NO_HEARTBEAT 0x40
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/* mask to get sticky */
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#define SCTP_STICKY_OPTIONS_MASK 0x0c
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/* Chunk flags */
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#define SCTP_WINDOW_PROBE 0x01
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/*
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* SCTP states for internal state machine XXX (should match "user" values)
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*/
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#define SCTP_STATE_EMPTY 0x0000
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#define SCTP_STATE_INUSE 0x0001
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#define SCTP_STATE_COOKIE_WAIT 0x0002
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#define SCTP_STATE_COOKIE_ECHOED 0x0004
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#define SCTP_STATE_OPEN 0x0008
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#define SCTP_STATE_SHUTDOWN_SENT 0x0010
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#define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020
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#define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040
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#define SCTP_STATE_SHUTDOWN_PENDING 0x0080
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#define SCTP_STATE_CLOSED_SOCKET 0x0100
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#define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200
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#define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400
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#define SCTP_STATE_MASK 0x007f
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#define SCTP_GET_STATE(asoc) ((asoc)->state & SCTP_STATE_MASK)
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/* SCTP reachability state for each address */
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#define SCTP_ADDR_REACHABLE 0x001
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#define SCTP_ADDR_NOT_REACHABLE 0x002
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#define SCTP_ADDR_NOHB 0x004
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#define SCTP_ADDR_BEING_DELETED 0x008
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#define SCTP_ADDR_NOT_IN_ASSOC 0x010
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#define SCTP_ADDR_WAS_PRIMARY 0x020
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#define SCTP_ADDR_SWITCH_PRIMARY 0x040
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#define SCTP_ADDR_OUT_OF_SCOPE 0x080
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#define SCTP_ADDR_DOUBLE_SWITCH 0x100
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#define SCTP_ADDR_UNCONFIRMED 0x200
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#define SCTP_ADDR_REQ_PRIMARY 0x400
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#define SCTP_REACHABLE_MASK 0x203
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/* bound address types (e.g. valid address types to allow) */
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#define SCTP_BOUND_V6 0x01
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#define SCTP_BOUND_V4 0x02
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/*
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* what is the default number of mbufs in a chain I allow before switching to
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* a cluster
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*/
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#define SCTP_DEFAULT_MBUFS_IN_CHAIN 5
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/* How long a cookie lives in seconds */
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#define SCTP_DEFAULT_COOKIE_LIFE 60
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/* resource limit of streams */
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#define MAX_SCTP_STREAMS 2048
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/* Maximum the mapping array will grow to (TSN mapping array) */
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#define SCTP_MAPPING_ARRAY 512
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/* size of the inital malloc on the mapping array */
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#define SCTP_INITIAL_MAPPING_ARRAY 16
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/* how much we grow the mapping array each call */
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#define SCTP_MAPPING_ARRAY_INCR 32
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/*
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* Here we define the timer types used by the implementation as arguments in
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* the set/get timer type calls.
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*/
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#define SCTP_TIMER_INIT 0
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#define SCTP_TIMER_RECV 1
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#define SCTP_TIMER_SEND 2
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#define SCTP_TIMER_HEARTBEAT 3
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#define SCTP_TIMER_PMTU 4
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#define SCTP_TIMER_MAXSHUTDOWN 5
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#define SCTP_TIMER_SIGNATURE 6
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/*
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* number of timer types in the base SCTP structure used in the set/get and
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* has the base default.
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*/
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#define SCTP_NUM_TMRS 7
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/* timer types */
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#define SCTP_TIMER_TYPE_NONE 0
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#define SCTP_TIMER_TYPE_SEND 1
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#define SCTP_TIMER_TYPE_INIT 2
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#define SCTP_TIMER_TYPE_RECV 3
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#define SCTP_TIMER_TYPE_SHUTDOWN 4
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#define SCTP_TIMER_TYPE_HEARTBEAT 5
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#define SCTP_TIMER_TYPE_COOKIE 6
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#define SCTP_TIMER_TYPE_NEWCOOKIE 7
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#define SCTP_TIMER_TYPE_PATHMTURAISE 8
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#define SCTP_TIMER_TYPE_SHUTDOWNACK 9
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#define SCTP_TIMER_TYPE_ASCONF 10
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#define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11
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#define SCTP_TIMER_TYPE_AUTOCLOSE 12
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#define SCTP_TIMER_TYPE_EVENTWAKE 13
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#define SCTP_TIMER_TYPE_STRRESET 14
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#define SCTP_TIMER_TYPE_INPKILL 15
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#define SCTP_TIMER_TYPE_ITERATOR 16
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#define SCTP_TIMER_TYPE_EARLYFR 17
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#define SCTP_TIMER_TYPE_ASOCKILL 18
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#define SCTP_TIMER_TYPE_ADDR_WQ 19
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/* add new timers here - and increment LAST */
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#define SCTP_TIMER_TYPE_LAST 20
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#define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \
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((t) < SCTP_TIMER_TYPE_LAST))
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/*
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* Number of ticks before the soxwakeup() event that is delayed is sent AFTER
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* the accept() call
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*/
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#define SCTP_EVENTWAKEUP_WAIT_TICKS 3000
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/*
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* Of course we really don't collect stale cookies, being folks of decerning
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* taste. However we do count them, if we get too many before the association
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* comes up.. we give up. Below is the constant that dictates when we give it
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* up...this is a implemenation dependent treatment. In ours we do not ask
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* for a extension of time, but just retry this many times...
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*/
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#define SCTP_MAX_STALE_COOKIES_I_COLLECT 10
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/* max number of TSN's dup'd that I will hold */
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#define SCTP_MAX_DUP_TSNS 20
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/*
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* Here we define the types used when setting the retry amounts.
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*/
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/* constants for type of set */
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#define SCTP_MAXATTEMPT_INIT 2
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#define SCTP_MAXATTEMPT_SEND 3
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/* Maximum TSN's we will summarize in a drop report */
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#define SCTP_MAX_DROP_REPORT 16
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/* How many drop re-attempts we make on INIT/COOKIE-ECHO */
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#define SCTP_RETRY_DROPPED_THRESH 4
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/*
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* And the max we will keep a history of in the tcb which MUST be lower than
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* 256.
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*/
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#define SCTP_MAX_DROP_SAVE_REPORT 16
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/*
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* Here we define the default timers and the default number of attemts we
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* make for each respective side (send/init).
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*/
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/*
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* Maxmium number of chunks a single association can have on it. Note that
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* this is a squishy number since the count can run over this if the user
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* sends a large message down .. the fragmented chunks don't count until
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* AFTER the message is on queue.. it would be the next send that blocks
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* things. This number will get tuned up at boot in the sctp_init and use the
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* number of clusters as a base. This way high bandwidth environments will
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* not get impacted by the lower bandwidth sending a bunch of 1 byte chunks
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*/
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#define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512
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/* The conversion from time to ticks and vice versa is done by rounding
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* upwards. This way we can test in the code the time to be positive and
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* know that this corresponds to a positive number of ticks.
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*/
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#define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000))
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#define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz))
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#define SEC_TO_TICKS(x) ((x) * hz)
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#define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz)
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/*
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* Basically the minimum amount of time before I do a early FR. Making this
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* value to low will cause duplicate retransmissions.
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*/
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#define SCTP_MINFR_MSEC_TIMER 250
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/* The floor this value is allowed to fall to when starting a timer. */
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#define SCTP_MINFR_MSEC_FLOOR 20
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/* init timer def = 1 sec */
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#define SCTP_INIT_SEC 1
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/* send timer def = 1 seconds */
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#define SCTP_SEND_SEC 1
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/* recv timer def = 200ms */
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#define SCTP_RECV_MSEC 200
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/* 30 seconds + RTO (in ms) */
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#define SCTP_HB_DEFAULT_MSEC 30000
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/* Max time I will wait for Shutdown to complete */
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#define SCTP_DEF_MAX_SHUTDOWN_SEC 180
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/*
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* This is how long a secret lives, NOT how long a cookie lives how many
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* ticks the current secret will live.
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*/
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#define SCTP_DEFAULT_SECRET_LIFE_SEC 3600
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#define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */
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#define SCTP_RTO_UPPER_BOUND_SEC 60 /* for the init timer */
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#define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec in ms */
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#define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */
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#define SCTP_INP_KILL_TIMEOUT 20/* number of ms to retry kill of inpcb */
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#define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */
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#define SCTP_DEF_MAX_INIT 8
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#define SCTP_DEF_MAX_SEND 10
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#define SCTP_DEF_MAX_PATH_RTX 4
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#define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */
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#define SCTP_DEF_PMTU_MIN 600
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#define SCTP_MSEC_IN_A_SEC 1000
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#define SCTP_USEC_IN_A_SEC 1000000
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#define SCTP_NSEC_IN_A_SEC 1000000000
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#define SCTP_MAX_OUTSTANDING_DG 10000
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/* How many streams I request initally by default */
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#define SCTP_OSTREAM_INITIAL 10
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/*
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* How many smallest_mtu's need to increase before a window update sack is
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* sent (should be a power of 2).
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*/
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#define SCTP_SEG_TO_RWND_UPD 32
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/* Send window update (incr * this > hiwat). Should be a power of 2 */
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#define SCTP_SCALE_OF_RWND_TO_UPD 4
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#define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */
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#define SCTP_ADDRMAX 20
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/* SCTP DEBUG Switch parameters */
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#define SCTP_DEBUG_TIMER1 0x00000001
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#define SCTP_DEBUG_TIMER2 0x00000002
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#define SCTP_DEBUG_TIMER3 0x00000004
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#define SCTP_DEBUG_TIMER4 0x00000008
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#define SCTP_DEBUG_OUTPUT1 0x00000010
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#define SCTP_DEBUG_OUTPUT2 0x00000020
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#define SCTP_DEBUG_OUTPUT3 0x00000040
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#define SCTP_DEBUG_OUTPUT4 0x00000080
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#define SCTP_DEBUG_UTIL1 0x00000100
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#define SCTP_DEBUG_UTIL2 0x00000200
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#define SCTP_DEBUG_AUTH1 0x00000400
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#define SCTP_DEBUG_AUTH2 0x00000800
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#define SCTP_DEBUG_INPUT1 0x00001000
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#define SCTP_DEBUG_INPUT2 0x00002000
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#define SCTP_DEBUG_INPUT3 0x00004000
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#define SCTP_DEBUG_INPUT4 0x00008000
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#define SCTP_DEBUG_ASCONF1 0x00010000
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#define SCTP_DEBUG_ASCONF2 0x00020000
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#define SCTP_DEBUG_OUTPUT5 0x00040000
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#define SCTP_DEBUG_XXX 0x00080000
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#define SCTP_DEBUG_PCB1 0x00100000
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#define SCTP_DEBUG_PCB2 0x00200000
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#define SCTP_DEBUG_PCB3 0x00400000
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#define SCTP_DEBUG_PCB4 0x00800000
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#define SCTP_DEBUG_INDATA1 0x01000000
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#define SCTP_DEBUG_INDATA2 0x02000000
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#define SCTP_DEBUG_INDATA3 0x04000000
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#define SCTP_DEBUG_INDATA4 0x08000000
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#define SCTP_DEBUG_USRREQ1 0x10000000
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#define SCTP_DEBUG_USRREQ2 0x20000000
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#define SCTP_DEBUG_PEEL1 0x40000000
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#define SCTP_DEBUG_XXXXX 0x80000000
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#define SCTP_DEBUG_ALL 0x7ff3ffff
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#define SCTP_DEBUG_NOISY 0x00040000
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/* What sender needs to see to avoid SWS or we consider peers rwnd 0 */
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#define SCTP_SWS_SENDER_DEF 1420
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/*
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* SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1
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* would be hiwat/2 etc.
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*/
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/* What receiver needs to see in sockbuf or we tell peer its 1 */
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#define SCTP_SWS_RECEIVER_DEF 3000
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#define SCTP_INITIAL_CWND 4380
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/* amount peer is obligated to have in rwnd or I will abort */
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#define SCTP_MIN_RWND 1500
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#define SCTP_WINDOW_MIN 1500 /* smallest rwnd can be */
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#define SCTP_WINDOW_MAX 1048576 /* biggest I can grow rwnd to My playing
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* around suggests a value greater than 64k
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* does not do much, I guess via the kernel
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* limitations on the stream/socket. */
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/* I can handle a 1meg re-assembly */
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#define SCTP_DEFAULT_MAXMSGREASM 1048576
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#define SCTP_DEFAULT_MAXSEGMENT 65535
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#define SCTP_CHUNK_BUFFER_SIZE 2048
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#define SCTP_PARAM_BUFFER_SIZE 512
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#define SCTP_DEFAULT_MINSEGMENT 512 /* MTU size ... if no mtu disc */
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#define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */
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#define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */
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#define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */
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/*
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* SCTP upper layer notifications
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*/
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#define SCTP_NOTIFY_ASSOC_UP 1
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#define SCTP_NOTIFY_ASSOC_DOWN 2
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#define SCTP_NOTIFY_INTERFACE_DOWN 3
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#define SCTP_NOTIFY_INTERFACE_UP 4
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#define SCTP_NOTIFY_DG_FAIL 5
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#define SCTP_NOTIFY_STRDATA_ERR 6
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#define SCTP_NOTIFY_ASSOC_ABORTED 7
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#define SCTP_NOTIFY_PEER_OPENED_STREAM 8
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#define SCTP_NOTIFY_STREAM_OPENED_OK 9
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#define SCTP_NOTIFY_ASSOC_RESTART 10
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#define SCTP_NOTIFY_HB_RESP 11
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#define SCTP_NOTIFY_ASCONF_SUCCESS 12
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#define SCTP_NOTIFY_ASCONF_FAILED 13
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#define SCTP_NOTIFY_PEER_SHUTDOWN 14
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#define SCTP_NOTIFY_ASCONF_ADD_IP 15
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#define SCTP_NOTIFY_ASCONF_DELETE_IP 16
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#define SCTP_NOTIFY_ASCONF_SET_PRIMARY 17
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#define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 18
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#define SCTP_NOTIFY_ADAPTATION_INDICATION 19
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/* same as above */
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#define SCTP_NOTIFY_ADAPTION_INDICATION 19
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#define SCTP_NOTIFY_INTERFACE_CONFIRMED 20
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#define SCTP_NOTIFY_STR_RESET_RECV 21
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#define SCTP_NOTIFY_STR_RESET_SEND 22
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#define SCTP_NOTIFY_STR_RESET_FAILED_OUT 23
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#define SCTP_NOTIFY_STR_RESET_FAILED_IN 24
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#define SCTP_NOTIFY_AUTH_NEW_KEY 25
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#define SCTP_NOTIFY_AUTH_KEY_CONFLICT 26
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#define SCTP_NOTIFY_SPECIAL_SP_FAIL 27
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#define SCTP_NOTIFY_MAX 27
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/* This is the value for messages that are NOT completely
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* copied down where we will start to split the message.
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* So, with our default, we split only if the piece we
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* want to take will fill up a full MTU (assuming
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* a 1500 byte MTU).
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*/
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#define SCTP_DEFAULT_SPLIT_POINT_MIN 1452
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/* ABORT CODES and other tell-tale location
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* codes are generated by adding the below
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* to the instance id.
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*/
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/* File defines */
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#define SCTP_FROM_SCTP_INPUT 0x10000000
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#define SCTP_FROM_SCTP_PCB 0x20000000
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#define SCTP_FROM_SCTP_INDATA 0x30000000
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#define SCTP_FROM_SCTP_TIMER 0x40000000
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#define SCTP_FROM_SCTP_USRREQ 0x50000000
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#define SCTP_FROM_SCTPUTIL 0x60000000
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#define SCTP_FROM_SCTP6_USRREQ 0x70000000
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#define SCTP_FROM_SCTP_ASCONF 0x80000000
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#define SCTP_FROM_SCTP_OUTPUT 0x90000000
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#define SCTP_FROM_SCTP_PEELOFF 0xa0000000
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/* Location ID's */
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#define SCTP_LOC_1 0x00000001
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#define SCTP_LOC_2 0x00000002
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#define SCTP_LOC_3 0x00000003
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#define SCTP_LOC_4 0x00000004
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#define SCTP_LOC_5 0x00000005
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#define SCTP_LOC_6 0x00000006
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#define SCTP_LOC_7 0x00000007
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#define SCTP_LOC_8 0x00000008
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#define SCTP_LOC_9 0x00000009
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#define SCTP_LOC_10 0x0000000a
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#define SCTP_LOC_11 0x0000000b
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#define SCTP_LOC_12 0x0000000c
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#define SCTP_LOC_13 0x0000000d
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#define SCTP_LOC_14 0x0000000e
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#define SCTP_LOC_15 0x0000000f
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#define SCTP_LOC_16 0x00000010
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#define SCTP_LOC_17 0x00000011
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#define SCTP_LOC_18 0x00000012
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#define SCTP_LOC_19 0x00000013
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#define SCTP_LOC_20 0x00000014
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#define SCTP_LOC_21 0x00000015
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#define SCTP_LOC_22 0x00000016
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#define SCTP_LOC_23 0x00000017
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#define SCTP_LOC_24 0x00000018
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#define SCTP_LOC_25 0x00000019
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#define SCTP_LOC_26 0x0000001a
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#define SCTP_LOC_27 0x0000001b
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#define SCTP_LOC_28 0x0000001c
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#define SCTP_LOC_29 0x0000001d
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#define SCTP_LOC_30 0x0000001e
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#define SCTP_LOC_31 0x0000001f
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#define SCTP_LOC_32 0x00000020
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/* Free assoc codes */
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#define SCTP_NORMAL_PROC 0
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#define SCTP_PCBFREE_NOFORCE 1
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#define SCTP_PCBFREE_FORCE 2
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|
|
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/* From codes for adding addresses */
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#define SCTP_ADDR_IS_CONFIRMED 8
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#define SCTP_ADDR_DYNAMIC_ADDED 6
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#define SCTP_IN_COOKIE_PROC 100
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#define SCTP_ALLOC_ASOC 1
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#define SCTP_LOAD_ADDR_2 2
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#define SCTP_LOAD_ADDR_3 3
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#define SCTP_LOAD_ADDR_4 4
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#define SCTP_LOAD_ADDR_5 5
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|
|
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#define SCTP_DONOT_SETSCOPE 0
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#define SCTP_DO_SETSCOPE 1
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|
|
|
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/* 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
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|
|
|
#ifndef SCTP_PCBHASHSIZE
|
|
/* default number of association hash buckets in each endpoint */
|
|
#define SCTP_PCBHASHSIZE 256
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|
#endif
|
|
#ifndef SCTP_TCBHASHSIZE
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|
#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 */
|
|
|
|
#ifndef IPPROTO_SCTP
|
|
#define IPPROTO_SCTP 132 /* the Official IANA number :-) */
|
|
#endif /* !IPPROTO_SCTP */
|
|
|
|
#define SCTP_MAX_DATA_BUNDLING 256
|
|
#define SCTP_MAX_CONTROL_BUNDLING 20
|
|
|
|
/* modular comparison */
|
|
/* True if a > b (mod = M) */
|
|
#define compare_with_wrap(a, b, M) (((a > b) && ((a - b) < ((M >> 1) + 1))) || \
|
|
((b > a) && ((b - a) > ((M >> 1) + 1))))
|
|
|
|
|
|
/* 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))
|
|
|
|
|
|
/*
|
|
* 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 31
|
|
|
|
/*
|
|
* If we use the per-endpoint model than we do not have a hash table of
|
|
* entries but instead have a single head pointer and we must crawl through
|
|
* the entire list.
|
|
*/
|
|
|
|
/*
|
|
* Number of seconds of time wait, tied to MSL value (2 minutes), so 2 * MSL
|
|
* = 4 minutes or 480 seconds.
|
|
*/
|
|
#define SCTP_TIME_WAIT 480
|
|
|
|
/* This time wait is the same as the default cookie life
|
|
* since we now enter a tag in every time we send a cookie.
|
|
* We want this shorter to avoid vtag depletion.
|
|
*/
|
|
#define SCTP_TIME_WAIT_SHORT 60
|
|
|
|
/* 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
|
|
|
|
|
|
#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))
|
|
|
|
|
|
#if defined(_KERNEL)
|
|
|
|
#define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x))
|
|
#define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x))
|
|
/*#if defined(__FreeBSD__) || defined(__APPLE__)*/
|
|
/*#define SCTP_GETTIME_TIMEVAL(x) { \*/
|
|
/* (x)->tv_sec = ticks / 1000; \*/
|
|
/* (x)->tv_usec = (ticks % 1000) * 1000; \*/
|
|
/*}*/
|
|
|
|
/*#else*/
|
|
/*#define SCTP_GETTIME_TIMEVAL(x) (microtime(x))*/
|
|
/*#endif __FreeBSD__ */
|
|
|
|
#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 */
|
|
#endif
|