Star64_linux/include/uapi/linux/snmp.h
Priyaranjan Jha ad2b9b0f8d tcp: skip DSACKs with dubious sequence ranges
Currently, we use length of DSACKed range to compute number of
delivered packets. And if sequence range in DSACK is corrupted,
we can get bogus dsacked/acked count, and bogus cwnd.

This patch put bounds on DSACKed range to skip update of data
delivery and spurious retransmission information, if the DSACK
is unlikely caused by sender's action:
- DSACKed range shouldn't be greater than maximum advertised rwnd.
- Total no. of DSACKed segments shouldn't be greater than total
  no. of retransmitted segs. Unlike spurious retransmits, network
  duplicates or corrupted DSACKs shouldn't be counted as delivery.

Signed-off-by: Priyaranjan Jha <priyarjha@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24 20:15:45 -07:00

347 lines
14 KiB
C

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* Definitions for MIBs
*
* Author: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
*/
#ifndef _LINUX_SNMP_H
#define _LINUX_SNMP_H
/* ipstats mib definitions */
/*
* RFC 1213: MIB-II
* RFC 2011 (updates 1213): SNMPv2-MIB-IP
* RFC 2863: Interfaces Group MIB
* RFC 2465: IPv6 MIB: General Group
* draft-ietf-ipv6-rfc2011-update-10.txt: MIB for IP: IP Statistics Tables
*/
enum
{
IPSTATS_MIB_NUM = 0,
/* frequently written fields in fast path, kept in same cache line */
IPSTATS_MIB_INPKTS, /* InReceives */
IPSTATS_MIB_INOCTETS, /* InOctets */
IPSTATS_MIB_INDELIVERS, /* InDelivers */
IPSTATS_MIB_OUTFORWDATAGRAMS, /* OutForwDatagrams */
IPSTATS_MIB_OUTPKTS, /* OutRequests */
IPSTATS_MIB_OUTOCTETS, /* OutOctets */
/* other fields */
IPSTATS_MIB_INHDRERRORS, /* InHdrErrors */
IPSTATS_MIB_INTOOBIGERRORS, /* InTooBigErrors */
IPSTATS_MIB_INNOROUTES, /* InNoRoutes */
IPSTATS_MIB_INADDRERRORS, /* InAddrErrors */
IPSTATS_MIB_INUNKNOWNPROTOS, /* InUnknownProtos */
IPSTATS_MIB_INTRUNCATEDPKTS, /* InTruncatedPkts */
IPSTATS_MIB_INDISCARDS, /* InDiscards */
IPSTATS_MIB_OUTDISCARDS, /* OutDiscards */
IPSTATS_MIB_OUTNOROUTES, /* OutNoRoutes */
IPSTATS_MIB_REASMTIMEOUT, /* ReasmTimeout */
IPSTATS_MIB_REASMREQDS, /* ReasmReqds */
IPSTATS_MIB_REASMOKS, /* ReasmOKs */
IPSTATS_MIB_REASMFAILS, /* ReasmFails */
IPSTATS_MIB_FRAGOKS, /* FragOKs */
IPSTATS_MIB_FRAGFAILS, /* FragFails */
IPSTATS_MIB_FRAGCREATES, /* FragCreates */
IPSTATS_MIB_INMCASTPKTS, /* InMcastPkts */
IPSTATS_MIB_OUTMCASTPKTS, /* OutMcastPkts */
IPSTATS_MIB_INBCASTPKTS, /* InBcastPkts */
IPSTATS_MIB_OUTBCASTPKTS, /* OutBcastPkts */
IPSTATS_MIB_INMCASTOCTETS, /* InMcastOctets */
IPSTATS_MIB_OUTMCASTOCTETS, /* OutMcastOctets */
IPSTATS_MIB_INBCASTOCTETS, /* InBcastOctets */
IPSTATS_MIB_OUTBCASTOCTETS, /* OutBcastOctets */
IPSTATS_MIB_CSUMERRORS, /* InCsumErrors */
IPSTATS_MIB_NOECTPKTS, /* InNoECTPkts */
IPSTATS_MIB_ECT1PKTS, /* InECT1Pkts */
IPSTATS_MIB_ECT0PKTS, /* InECT0Pkts */
IPSTATS_MIB_CEPKTS, /* InCEPkts */
IPSTATS_MIB_REASM_OVERLAPS, /* ReasmOverlaps */
__IPSTATS_MIB_MAX
};
/* icmp mib definitions */
/*
* RFC 1213: MIB-II ICMP Group
* RFC 2011 (updates 1213): SNMPv2 MIB for IP: ICMP group
*/
enum
{
ICMP_MIB_NUM = 0,
ICMP_MIB_INMSGS, /* InMsgs */
ICMP_MIB_INERRORS, /* InErrors */
ICMP_MIB_INDESTUNREACHS, /* InDestUnreachs */
ICMP_MIB_INTIMEEXCDS, /* InTimeExcds */
ICMP_MIB_INPARMPROBS, /* InParmProbs */
ICMP_MIB_INSRCQUENCHS, /* InSrcQuenchs */
ICMP_MIB_INREDIRECTS, /* InRedirects */
ICMP_MIB_INECHOS, /* InEchos */
ICMP_MIB_INECHOREPS, /* InEchoReps */
ICMP_MIB_INTIMESTAMPS, /* InTimestamps */
ICMP_MIB_INTIMESTAMPREPS, /* InTimestampReps */
ICMP_MIB_INADDRMASKS, /* InAddrMasks */
ICMP_MIB_INADDRMASKREPS, /* InAddrMaskReps */
ICMP_MIB_OUTMSGS, /* OutMsgs */
ICMP_MIB_OUTERRORS, /* OutErrors */
ICMP_MIB_OUTDESTUNREACHS, /* OutDestUnreachs */
ICMP_MIB_OUTTIMEEXCDS, /* OutTimeExcds */
ICMP_MIB_OUTPARMPROBS, /* OutParmProbs */
ICMP_MIB_OUTSRCQUENCHS, /* OutSrcQuenchs */
ICMP_MIB_OUTREDIRECTS, /* OutRedirects */
ICMP_MIB_OUTECHOS, /* OutEchos */
ICMP_MIB_OUTECHOREPS, /* OutEchoReps */
ICMP_MIB_OUTTIMESTAMPS, /* OutTimestamps */
ICMP_MIB_OUTTIMESTAMPREPS, /* OutTimestampReps */
ICMP_MIB_OUTADDRMASKS, /* OutAddrMasks */
ICMP_MIB_OUTADDRMASKREPS, /* OutAddrMaskReps */
ICMP_MIB_CSUMERRORS, /* InCsumErrors */
__ICMP_MIB_MAX
};
#define __ICMPMSG_MIB_MAX 512 /* Out+In for all 8-bit ICMP types */
/* icmp6 mib definitions */
/*
* RFC 2466: ICMPv6-MIB
*/
enum
{
ICMP6_MIB_NUM = 0,
ICMP6_MIB_INMSGS, /* InMsgs */
ICMP6_MIB_INERRORS, /* InErrors */
ICMP6_MIB_OUTMSGS, /* OutMsgs */
ICMP6_MIB_OUTERRORS, /* OutErrors */
ICMP6_MIB_CSUMERRORS, /* InCsumErrors */
__ICMP6_MIB_MAX
};
#define __ICMP6MSG_MIB_MAX 512 /* Out+In for all 8-bit ICMPv6 types */
/* tcp mib definitions */
/*
* RFC 1213: MIB-II TCP group
* RFC 2012 (updates 1213): SNMPv2-MIB-TCP
*/
enum
{
TCP_MIB_NUM = 0,
TCP_MIB_RTOALGORITHM, /* RtoAlgorithm */
TCP_MIB_RTOMIN, /* RtoMin */
TCP_MIB_RTOMAX, /* RtoMax */
TCP_MIB_MAXCONN, /* MaxConn */
TCP_MIB_ACTIVEOPENS, /* ActiveOpens */
TCP_MIB_PASSIVEOPENS, /* PassiveOpens */
TCP_MIB_ATTEMPTFAILS, /* AttemptFails */
TCP_MIB_ESTABRESETS, /* EstabResets */
TCP_MIB_CURRESTAB, /* CurrEstab */
TCP_MIB_INSEGS, /* InSegs */
TCP_MIB_OUTSEGS, /* OutSegs */
TCP_MIB_RETRANSSEGS, /* RetransSegs */
TCP_MIB_INERRS, /* InErrs */
TCP_MIB_OUTRSTS, /* OutRsts */
TCP_MIB_CSUMERRORS, /* InCsumErrors */
__TCP_MIB_MAX
};
/* udp mib definitions */
/*
* RFC 1213: MIB-II UDP group
* RFC 2013 (updates 1213): SNMPv2-MIB-UDP
*/
enum
{
UDP_MIB_NUM = 0,
UDP_MIB_INDATAGRAMS, /* InDatagrams */
UDP_MIB_NOPORTS, /* NoPorts */
UDP_MIB_INERRORS, /* InErrors */
UDP_MIB_OUTDATAGRAMS, /* OutDatagrams */
UDP_MIB_RCVBUFERRORS, /* RcvbufErrors */
UDP_MIB_SNDBUFERRORS, /* SndbufErrors */
UDP_MIB_CSUMERRORS, /* InCsumErrors */
UDP_MIB_IGNOREDMULTI, /* IgnoredMulti */
__UDP_MIB_MAX
};
/* linux mib definitions */
enum
{
LINUX_MIB_NUM = 0,
LINUX_MIB_SYNCOOKIESSENT, /* SyncookiesSent */
LINUX_MIB_SYNCOOKIESRECV, /* SyncookiesRecv */
LINUX_MIB_SYNCOOKIESFAILED, /* SyncookiesFailed */
LINUX_MIB_EMBRYONICRSTS, /* EmbryonicRsts */
LINUX_MIB_PRUNECALLED, /* PruneCalled */
LINUX_MIB_RCVPRUNED, /* RcvPruned */
LINUX_MIB_OFOPRUNED, /* OfoPruned */
LINUX_MIB_OUTOFWINDOWICMPS, /* OutOfWindowIcmps */
LINUX_MIB_LOCKDROPPEDICMPS, /* LockDroppedIcmps */
LINUX_MIB_ARPFILTER, /* ArpFilter */
LINUX_MIB_TIMEWAITED, /* TimeWaited */
LINUX_MIB_TIMEWAITRECYCLED, /* TimeWaitRecycled */
LINUX_MIB_TIMEWAITKILLED, /* TimeWaitKilled */
LINUX_MIB_PAWSACTIVEREJECTED, /* PAWSActiveRejected */
LINUX_MIB_PAWSESTABREJECTED, /* PAWSEstabRejected */
LINUX_MIB_DELAYEDACKS, /* DelayedACKs */
LINUX_MIB_DELAYEDACKLOCKED, /* DelayedACKLocked */
LINUX_MIB_DELAYEDACKLOST, /* DelayedACKLost */
LINUX_MIB_LISTENOVERFLOWS, /* ListenOverflows */
LINUX_MIB_LISTENDROPS, /* ListenDrops */
LINUX_MIB_TCPHPHITS, /* TCPHPHits */
LINUX_MIB_TCPPUREACKS, /* TCPPureAcks */
LINUX_MIB_TCPHPACKS, /* TCPHPAcks */
LINUX_MIB_TCPRENORECOVERY, /* TCPRenoRecovery */
LINUX_MIB_TCPSACKRECOVERY, /* TCPSackRecovery */
LINUX_MIB_TCPSACKRENEGING, /* TCPSACKReneging */
LINUX_MIB_TCPSACKREORDER, /* TCPSACKReorder */
LINUX_MIB_TCPRENOREORDER, /* TCPRenoReorder */
LINUX_MIB_TCPTSREORDER, /* TCPTSReorder */
LINUX_MIB_TCPFULLUNDO, /* TCPFullUndo */
LINUX_MIB_TCPPARTIALUNDO, /* TCPPartialUndo */
LINUX_MIB_TCPDSACKUNDO, /* TCPDSACKUndo */
LINUX_MIB_TCPLOSSUNDO, /* TCPLossUndo */
LINUX_MIB_TCPLOSTRETRANSMIT, /* TCPLostRetransmit */
LINUX_MIB_TCPRENOFAILURES, /* TCPRenoFailures */
LINUX_MIB_TCPSACKFAILURES, /* TCPSackFailures */
LINUX_MIB_TCPLOSSFAILURES, /* TCPLossFailures */
LINUX_MIB_TCPFASTRETRANS, /* TCPFastRetrans */
LINUX_MIB_TCPSLOWSTARTRETRANS, /* TCPSlowStartRetrans */
LINUX_MIB_TCPTIMEOUTS, /* TCPTimeouts */
LINUX_MIB_TCPLOSSPROBES, /* TCPLossProbes */
LINUX_MIB_TCPLOSSPROBERECOVERY, /* TCPLossProbeRecovery */
LINUX_MIB_TCPRENORECOVERYFAIL, /* TCPRenoRecoveryFail */
LINUX_MIB_TCPSACKRECOVERYFAIL, /* TCPSackRecoveryFail */
LINUX_MIB_TCPRCVCOLLAPSED, /* TCPRcvCollapsed */
LINUX_MIB_TCPDSACKOLDSENT, /* TCPDSACKOldSent */
LINUX_MIB_TCPDSACKOFOSENT, /* TCPDSACKOfoSent */
LINUX_MIB_TCPDSACKRECV, /* TCPDSACKRecv */
LINUX_MIB_TCPDSACKOFORECV, /* TCPDSACKOfoRecv */
LINUX_MIB_TCPABORTONDATA, /* TCPAbortOnData */
LINUX_MIB_TCPABORTONCLOSE, /* TCPAbortOnClose */
LINUX_MIB_TCPABORTONMEMORY, /* TCPAbortOnMemory */
LINUX_MIB_TCPABORTONTIMEOUT, /* TCPAbortOnTimeout */
LINUX_MIB_TCPABORTONLINGER, /* TCPAbortOnLinger */
LINUX_MIB_TCPABORTFAILED, /* TCPAbortFailed */
LINUX_MIB_TCPMEMORYPRESSURES, /* TCPMemoryPressures */
LINUX_MIB_TCPMEMORYPRESSURESCHRONO, /* TCPMemoryPressuresChrono */
LINUX_MIB_TCPSACKDISCARD, /* TCPSACKDiscard */
LINUX_MIB_TCPDSACKIGNOREDOLD, /* TCPSACKIgnoredOld */
LINUX_MIB_TCPDSACKIGNOREDNOUNDO, /* TCPSACKIgnoredNoUndo */
LINUX_MIB_TCPSPURIOUSRTOS, /* TCPSpuriousRTOs */
LINUX_MIB_TCPMD5NOTFOUND, /* TCPMD5NotFound */
LINUX_MIB_TCPMD5UNEXPECTED, /* TCPMD5Unexpected */
LINUX_MIB_TCPMD5FAILURE, /* TCPMD5Failure */
LINUX_MIB_SACKSHIFTED,
LINUX_MIB_SACKMERGED,
LINUX_MIB_SACKSHIFTFALLBACK,
LINUX_MIB_TCPBACKLOGDROP,
LINUX_MIB_PFMEMALLOCDROP,
LINUX_MIB_TCPMINTTLDROP, /* RFC 5082 */
LINUX_MIB_TCPDEFERACCEPTDROP,
LINUX_MIB_IPRPFILTER, /* IP Reverse Path Filter (rp_filter) */
LINUX_MIB_TCPTIMEWAITOVERFLOW, /* TCPTimeWaitOverflow */
LINUX_MIB_TCPREQQFULLDOCOOKIES, /* TCPReqQFullDoCookies */
LINUX_MIB_TCPREQQFULLDROP, /* TCPReqQFullDrop */
LINUX_MIB_TCPRETRANSFAIL, /* TCPRetransFail */
LINUX_MIB_TCPRCVCOALESCE, /* TCPRcvCoalesce */
LINUX_MIB_TCPBACKLOGCOALESCE, /* TCPBacklogCoalesce */
LINUX_MIB_TCPOFOQUEUE, /* TCPOFOQueue */
LINUX_MIB_TCPOFODROP, /* TCPOFODrop */
LINUX_MIB_TCPOFOMERGE, /* TCPOFOMerge */
LINUX_MIB_TCPCHALLENGEACK, /* TCPChallengeACK */
LINUX_MIB_TCPSYNCHALLENGE, /* TCPSYNChallenge */
LINUX_MIB_TCPFASTOPENACTIVE, /* TCPFastOpenActive */
LINUX_MIB_TCPFASTOPENACTIVEFAIL, /* TCPFastOpenActiveFail */
LINUX_MIB_TCPFASTOPENPASSIVE, /* TCPFastOpenPassive*/
LINUX_MIB_TCPFASTOPENPASSIVEFAIL, /* TCPFastOpenPassiveFail */
LINUX_MIB_TCPFASTOPENLISTENOVERFLOW, /* TCPFastOpenListenOverflow */
LINUX_MIB_TCPFASTOPENCOOKIEREQD, /* TCPFastOpenCookieReqd */
LINUX_MIB_TCPFASTOPENBLACKHOLE, /* TCPFastOpenBlackholeDetect */
LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES, /* TCPSpuriousRtxHostQueues */
LINUX_MIB_BUSYPOLLRXPACKETS, /* BusyPollRxPackets */
LINUX_MIB_TCPAUTOCORKING, /* TCPAutoCorking */
LINUX_MIB_TCPFROMZEROWINDOWADV, /* TCPFromZeroWindowAdv */
LINUX_MIB_TCPTOZEROWINDOWADV, /* TCPToZeroWindowAdv */
LINUX_MIB_TCPWANTZEROWINDOWADV, /* TCPWantZeroWindowAdv */
LINUX_MIB_TCPSYNRETRANS, /* TCPSynRetrans */
LINUX_MIB_TCPORIGDATASENT, /* TCPOrigDataSent */
LINUX_MIB_TCPHYSTARTTRAINDETECT, /* TCPHystartTrainDetect */
LINUX_MIB_TCPHYSTARTTRAINCWND, /* TCPHystartTrainCwnd */
LINUX_MIB_TCPHYSTARTDELAYDETECT, /* TCPHystartDelayDetect */
LINUX_MIB_TCPHYSTARTDELAYCWND, /* TCPHystartDelayCwnd */
LINUX_MIB_TCPACKSKIPPEDSYNRECV, /* TCPACKSkippedSynRecv */
LINUX_MIB_TCPACKSKIPPEDPAWS, /* TCPACKSkippedPAWS */
LINUX_MIB_TCPACKSKIPPEDSEQ, /* TCPACKSkippedSeq */
LINUX_MIB_TCPACKSKIPPEDFINWAIT2, /* TCPACKSkippedFinWait2 */
LINUX_MIB_TCPACKSKIPPEDTIMEWAIT, /* TCPACKSkippedTimeWait */
LINUX_MIB_TCPACKSKIPPEDCHALLENGE, /* TCPACKSkippedChallenge */
LINUX_MIB_TCPWINPROBE, /* TCPWinProbe */
LINUX_MIB_TCPKEEPALIVE, /* TCPKeepAlive */
LINUX_MIB_TCPMTUPFAIL, /* TCPMTUPFail */
LINUX_MIB_TCPMTUPSUCCESS, /* TCPMTUPSuccess */
LINUX_MIB_TCPDELIVERED, /* TCPDelivered */
LINUX_MIB_TCPDELIVEREDCE, /* TCPDeliveredCE */
LINUX_MIB_TCPACKCOMPRESSED, /* TCPAckCompressed */
LINUX_MIB_TCPZEROWINDOWDROP, /* TCPZeroWindowDrop */
LINUX_MIB_TCPRCVQDROP, /* TCPRcvQDrop */
LINUX_MIB_TCPWQUEUETOOBIG, /* TCPWqueueTooBig */
LINUX_MIB_TCPFASTOPENPASSIVEALTKEY, /* TCPFastOpenPassiveAltKey */
LINUX_MIB_TCPTIMEOUTREHASH, /* TCPTimeoutRehash */
LINUX_MIB_TCPDUPLICATEDATAREHASH, /* TCPDuplicateDataRehash */
LINUX_MIB_TCPDSACKRECVSEGS, /* TCPDSACKRecvSegs */
LINUX_MIB_TCPDSACKIGNOREDDUBIOUS, /* TCPDSACKIgnoredDubious */
__LINUX_MIB_MAX
};
/* linux Xfrm mib definitions */
enum
{
LINUX_MIB_XFRMNUM = 0,
LINUX_MIB_XFRMINERROR, /* XfrmInError */
LINUX_MIB_XFRMINBUFFERERROR, /* XfrmInBufferError */
LINUX_MIB_XFRMINHDRERROR, /* XfrmInHdrError */
LINUX_MIB_XFRMINNOSTATES, /* XfrmInNoStates */
LINUX_MIB_XFRMINSTATEPROTOERROR, /* XfrmInStateProtoError */
LINUX_MIB_XFRMINSTATEMODEERROR, /* XfrmInStateModeError */
LINUX_MIB_XFRMINSTATESEQERROR, /* XfrmInStateSeqError */
LINUX_MIB_XFRMINSTATEEXPIRED, /* XfrmInStateExpired */
LINUX_MIB_XFRMINSTATEMISMATCH, /* XfrmInStateMismatch */
LINUX_MIB_XFRMINSTATEINVALID, /* XfrmInStateInvalid */
LINUX_MIB_XFRMINTMPLMISMATCH, /* XfrmInTmplMismatch */
LINUX_MIB_XFRMINNOPOLS, /* XfrmInNoPols */
LINUX_MIB_XFRMINPOLBLOCK, /* XfrmInPolBlock */
LINUX_MIB_XFRMINPOLERROR, /* XfrmInPolError */
LINUX_MIB_XFRMOUTERROR, /* XfrmOutError */
LINUX_MIB_XFRMOUTBUNDLEGENERROR, /* XfrmOutBundleGenError */
LINUX_MIB_XFRMOUTBUNDLECHECKERROR, /* XfrmOutBundleCheckError */
LINUX_MIB_XFRMOUTNOSTATES, /* XfrmOutNoStates */
LINUX_MIB_XFRMOUTSTATEPROTOERROR, /* XfrmOutStateProtoError */
LINUX_MIB_XFRMOUTSTATEMODEERROR, /* XfrmOutStateModeError */
LINUX_MIB_XFRMOUTSTATESEQERROR, /* XfrmOutStateSeqError */
LINUX_MIB_XFRMOUTSTATEEXPIRED, /* XfrmOutStateExpired */
LINUX_MIB_XFRMOUTPOLBLOCK, /* XfrmOutPolBlock */
LINUX_MIB_XFRMOUTPOLDEAD, /* XfrmOutPolDead */
LINUX_MIB_XFRMOUTPOLERROR, /* XfrmOutPolError */
LINUX_MIB_XFRMFWDHDRERROR, /* XfrmFwdHdrError*/
LINUX_MIB_XFRMOUTSTATEINVALID, /* XfrmOutStateInvalid */
LINUX_MIB_XFRMACQUIREERROR, /* XfrmAcquireError */
__LINUX_MIB_XFRMMAX
};
/* linux TLS mib definitions */
enum
{
LINUX_MIB_TLSNUM = 0,
LINUX_MIB_TLSCURRTXSW, /* TlsCurrTxSw */
LINUX_MIB_TLSCURRRXSW, /* TlsCurrRxSw */
LINUX_MIB_TLSCURRTXDEVICE, /* TlsCurrTxDevice */
LINUX_MIB_TLSCURRRXDEVICE, /* TlsCurrRxDevice */
LINUX_MIB_TLSTXSW, /* TlsTxSw */
LINUX_MIB_TLSRXSW, /* TlsRxSw */
LINUX_MIB_TLSTXDEVICE, /* TlsTxDevice */
LINUX_MIB_TLSRXDEVICE, /* TlsRxDevice */
LINUX_MIB_TLSDECRYPTERROR, /* TlsDecryptError */
LINUX_MIB_TLSRXDEVICERESYNC, /* TlsRxDeviceResync */
__LINUX_MIB_TLSMAX
};
#endif /* _LINUX_SNMP_H */