/*- * 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 __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 /* Largest length of an error cause */ #define SCTP_MAX_CAUSE_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) #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