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b5f7e75547
Christoph Lameter mentioned that packets could be dropped in input path
because of rp_filter settings, without any SNMP counter being
incremented. System administrator can have a hard time to track the
problem.
This patch introduces a new counter, LINUX_MIB_IPRPFILTER, incremented
each time we drop a packet because Reverse Path Filter triggers.
(We receive an IPv4 datagram on a given interface, and find the route to
send an answer would use another interface)
netstat -s | grep IPReversePathFilter
IPReversePathFilter: 21714
Reported-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
270 lines
9.8 KiB
C
270 lines
9.8 KiB
C
/*
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* Definitions for MIBs
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*
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* Author: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
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*/
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#ifndef _LINUX_SNMP_H
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#define _LINUX_SNMP_H
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/* ipstats mib definitions */
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/*
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* RFC 1213: MIB-II
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* RFC 2011 (updates 1213): SNMPv2-MIB-IP
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* RFC 2863: Interfaces Group MIB
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* RFC 2465: IPv6 MIB: General Group
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* draft-ietf-ipv6-rfc2011-update-10.txt: MIB for IP: IP Statistics Tables
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*/
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enum
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{
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IPSTATS_MIB_NUM = 0,
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IPSTATS_MIB_INPKTS, /* InReceives */
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IPSTATS_MIB_INHDRERRORS, /* InHdrErrors */
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IPSTATS_MIB_INTOOBIGERRORS, /* InTooBigErrors */
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IPSTATS_MIB_INNOROUTES, /* InNoRoutes */
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IPSTATS_MIB_INADDRERRORS, /* InAddrErrors */
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IPSTATS_MIB_INUNKNOWNPROTOS, /* InUnknownProtos */
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IPSTATS_MIB_INTRUNCATEDPKTS, /* InTruncatedPkts */
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IPSTATS_MIB_INDISCARDS, /* InDiscards */
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IPSTATS_MIB_INDELIVERS, /* InDelivers */
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IPSTATS_MIB_OUTFORWDATAGRAMS, /* OutForwDatagrams */
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IPSTATS_MIB_OUTPKTS, /* OutRequests */
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IPSTATS_MIB_OUTDISCARDS, /* OutDiscards */
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IPSTATS_MIB_OUTNOROUTES, /* OutNoRoutes */
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IPSTATS_MIB_REASMTIMEOUT, /* ReasmTimeout */
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IPSTATS_MIB_REASMREQDS, /* ReasmReqds */
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IPSTATS_MIB_REASMOKS, /* ReasmOKs */
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IPSTATS_MIB_REASMFAILS, /* ReasmFails */
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IPSTATS_MIB_FRAGOKS, /* FragOKs */
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IPSTATS_MIB_FRAGFAILS, /* FragFails */
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IPSTATS_MIB_FRAGCREATES, /* FragCreates */
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IPSTATS_MIB_INMCASTPKTS, /* InMcastPkts */
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IPSTATS_MIB_OUTMCASTPKTS, /* OutMcastPkts */
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IPSTATS_MIB_INBCASTPKTS, /* InBcastPkts */
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IPSTATS_MIB_OUTBCASTPKTS, /* OutBcastPkts */
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IPSTATS_MIB_INOCTETS, /* InOctets */
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IPSTATS_MIB_OUTOCTETS, /* OutOctets */
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IPSTATS_MIB_INMCASTOCTETS, /* InMcastOctets */
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IPSTATS_MIB_OUTMCASTOCTETS, /* OutMcastOctets */
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IPSTATS_MIB_INBCASTOCTETS, /* InBcastOctets */
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IPSTATS_MIB_OUTBCASTOCTETS, /* OutBcastOctets */
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__IPSTATS_MIB_MAX
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};
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/* icmp mib definitions */
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/*
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* RFC 1213: MIB-II ICMP Group
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* RFC 2011 (updates 1213): SNMPv2 MIB for IP: ICMP group
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*/
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enum
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{
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ICMP_MIB_NUM = 0,
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ICMP_MIB_INMSGS, /* InMsgs */
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ICMP_MIB_INERRORS, /* InErrors */
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ICMP_MIB_INDESTUNREACHS, /* InDestUnreachs */
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ICMP_MIB_INTIMEEXCDS, /* InTimeExcds */
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ICMP_MIB_INPARMPROBS, /* InParmProbs */
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ICMP_MIB_INSRCQUENCHS, /* InSrcQuenchs */
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ICMP_MIB_INREDIRECTS, /* InRedirects */
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ICMP_MIB_INECHOS, /* InEchos */
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ICMP_MIB_INECHOREPS, /* InEchoReps */
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ICMP_MIB_INTIMESTAMPS, /* InTimestamps */
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ICMP_MIB_INTIMESTAMPREPS, /* InTimestampReps */
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ICMP_MIB_INADDRMASKS, /* InAddrMasks */
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ICMP_MIB_INADDRMASKREPS, /* InAddrMaskReps */
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ICMP_MIB_OUTMSGS, /* OutMsgs */
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ICMP_MIB_OUTERRORS, /* OutErrors */
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ICMP_MIB_OUTDESTUNREACHS, /* OutDestUnreachs */
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ICMP_MIB_OUTTIMEEXCDS, /* OutTimeExcds */
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ICMP_MIB_OUTPARMPROBS, /* OutParmProbs */
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ICMP_MIB_OUTSRCQUENCHS, /* OutSrcQuenchs */
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ICMP_MIB_OUTREDIRECTS, /* OutRedirects */
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ICMP_MIB_OUTECHOS, /* OutEchos */
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ICMP_MIB_OUTECHOREPS, /* OutEchoReps */
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ICMP_MIB_OUTTIMESTAMPS, /* OutTimestamps */
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ICMP_MIB_OUTTIMESTAMPREPS, /* OutTimestampReps */
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ICMP_MIB_OUTADDRMASKS, /* OutAddrMasks */
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ICMP_MIB_OUTADDRMASKREPS, /* OutAddrMaskReps */
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__ICMP_MIB_MAX
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};
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#define __ICMPMSG_MIB_MAX 512 /* Out+In for all 8-bit ICMP types */
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/* icmp6 mib definitions */
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/*
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* RFC 2466: ICMPv6-MIB
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*/
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enum
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{
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ICMP6_MIB_NUM = 0,
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ICMP6_MIB_INMSGS, /* InMsgs */
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ICMP6_MIB_INERRORS, /* InErrors */
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ICMP6_MIB_OUTMSGS, /* OutMsgs */
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ICMP6_MIB_OUTERRORS, /* OutErrors */
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__ICMP6_MIB_MAX
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};
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#define __ICMP6MSG_MIB_MAX 512 /* Out+In for all 8-bit ICMPv6 types */
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/* tcp mib definitions */
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/*
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* RFC 1213: MIB-II TCP group
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* RFC 2012 (updates 1213): SNMPv2-MIB-TCP
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*/
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enum
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{
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TCP_MIB_NUM = 0,
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TCP_MIB_RTOALGORITHM, /* RtoAlgorithm */
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TCP_MIB_RTOMIN, /* RtoMin */
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TCP_MIB_RTOMAX, /* RtoMax */
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TCP_MIB_MAXCONN, /* MaxConn */
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TCP_MIB_ACTIVEOPENS, /* ActiveOpens */
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TCP_MIB_PASSIVEOPENS, /* PassiveOpens */
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TCP_MIB_ATTEMPTFAILS, /* AttemptFails */
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TCP_MIB_ESTABRESETS, /* EstabResets */
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TCP_MIB_CURRESTAB, /* CurrEstab */
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TCP_MIB_INSEGS, /* InSegs */
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TCP_MIB_OUTSEGS, /* OutSegs */
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TCP_MIB_RETRANSSEGS, /* RetransSegs */
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TCP_MIB_INERRS, /* InErrs */
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TCP_MIB_OUTRSTS, /* OutRsts */
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__TCP_MIB_MAX
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};
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/* udp mib definitions */
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/*
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* RFC 1213: MIB-II UDP group
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* RFC 2013 (updates 1213): SNMPv2-MIB-UDP
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*/
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enum
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{
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UDP_MIB_NUM = 0,
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UDP_MIB_INDATAGRAMS, /* InDatagrams */
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UDP_MIB_NOPORTS, /* NoPorts */
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UDP_MIB_INERRORS, /* InErrors */
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UDP_MIB_OUTDATAGRAMS, /* OutDatagrams */
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UDP_MIB_RCVBUFERRORS, /* RcvbufErrors */
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UDP_MIB_SNDBUFERRORS, /* SndbufErrors */
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__UDP_MIB_MAX
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};
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/* linux mib definitions */
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enum
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{
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LINUX_MIB_NUM = 0,
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LINUX_MIB_SYNCOOKIESSENT, /* SyncookiesSent */
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LINUX_MIB_SYNCOOKIESRECV, /* SyncookiesRecv */
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LINUX_MIB_SYNCOOKIESFAILED, /* SyncookiesFailed */
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LINUX_MIB_EMBRYONICRSTS, /* EmbryonicRsts */
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LINUX_MIB_PRUNECALLED, /* PruneCalled */
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LINUX_MIB_RCVPRUNED, /* RcvPruned */
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LINUX_MIB_OFOPRUNED, /* OfoPruned */
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LINUX_MIB_OUTOFWINDOWICMPS, /* OutOfWindowIcmps */
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LINUX_MIB_LOCKDROPPEDICMPS, /* LockDroppedIcmps */
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LINUX_MIB_ARPFILTER, /* ArpFilter */
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LINUX_MIB_TIMEWAITED, /* TimeWaited */
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LINUX_MIB_TIMEWAITRECYCLED, /* TimeWaitRecycled */
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LINUX_MIB_TIMEWAITKILLED, /* TimeWaitKilled */
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LINUX_MIB_PAWSPASSIVEREJECTED, /* PAWSPassiveRejected */
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LINUX_MIB_PAWSACTIVEREJECTED, /* PAWSActiveRejected */
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LINUX_MIB_PAWSESTABREJECTED, /* PAWSEstabRejected */
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LINUX_MIB_DELAYEDACKS, /* DelayedACKs */
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LINUX_MIB_DELAYEDACKLOCKED, /* DelayedACKLocked */
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LINUX_MIB_DELAYEDACKLOST, /* DelayedACKLost */
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LINUX_MIB_LISTENOVERFLOWS, /* ListenOverflows */
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LINUX_MIB_LISTENDROPS, /* ListenDrops */
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LINUX_MIB_TCPPREQUEUED, /* TCPPrequeued */
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LINUX_MIB_TCPDIRECTCOPYFROMBACKLOG, /* TCPDirectCopyFromBacklog */
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LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE, /* TCPDirectCopyFromPrequeue */
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LINUX_MIB_TCPPREQUEUEDROPPED, /* TCPPrequeueDropped */
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LINUX_MIB_TCPHPHITS, /* TCPHPHits */
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LINUX_MIB_TCPHPHITSTOUSER, /* TCPHPHitsToUser */
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LINUX_MIB_TCPPUREACKS, /* TCPPureAcks */
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LINUX_MIB_TCPHPACKS, /* TCPHPAcks */
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LINUX_MIB_TCPRENORECOVERY, /* TCPRenoRecovery */
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LINUX_MIB_TCPSACKRECOVERY, /* TCPSackRecovery */
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LINUX_MIB_TCPSACKRENEGING, /* TCPSACKReneging */
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LINUX_MIB_TCPFACKREORDER, /* TCPFACKReorder */
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LINUX_MIB_TCPSACKREORDER, /* TCPSACKReorder */
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LINUX_MIB_TCPRENOREORDER, /* TCPRenoReorder */
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LINUX_MIB_TCPTSREORDER, /* TCPTSReorder */
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LINUX_MIB_TCPFULLUNDO, /* TCPFullUndo */
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LINUX_MIB_TCPPARTIALUNDO, /* TCPPartialUndo */
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LINUX_MIB_TCPDSACKUNDO, /* TCPDSACKUndo */
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LINUX_MIB_TCPLOSSUNDO, /* TCPLossUndo */
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LINUX_MIB_TCPLOSS, /* TCPLoss */
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LINUX_MIB_TCPLOSTRETRANSMIT, /* TCPLostRetransmit */
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LINUX_MIB_TCPRENOFAILURES, /* TCPRenoFailures */
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LINUX_MIB_TCPSACKFAILURES, /* TCPSackFailures */
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LINUX_MIB_TCPLOSSFAILURES, /* TCPLossFailures */
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LINUX_MIB_TCPFASTRETRANS, /* TCPFastRetrans */
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LINUX_MIB_TCPFORWARDRETRANS, /* TCPForwardRetrans */
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LINUX_MIB_TCPSLOWSTARTRETRANS, /* TCPSlowStartRetrans */
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LINUX_MIB_TCPTIMEOUTS, /* TCPTimeouts */
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LINUX_MIB_TCPRENORECOVERYFAIL, /* TCPRenoRecoveryFail */
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LINUX_MIB_TCPSACKRECOVERYFAIL, /* TCPSackRecoveryFail */
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LINUX_MIB_TCPSCHEDULERFAILED, /* TCPSchedulerFailed */
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LINUX_MIB_TCPRCVCOLLAPSED, /* TCPRcvCollapsed */
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LINUX_MIB_TCPDSACKOLDSENT, /* TCPDSACKOldSent */
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LINUX_MIB_TCPDSACKOFOSENT, /* TCPDSACKOfoSent */
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LINUX_MIB_TCPDSACKRECV, /* TCPDSACKRecv */
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LINUX_MIB_TCPDSACKOFORECV, /* TCPDSACKOfoRecv */
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LINUX_MIB_TCPABORTONSYN, /* TCPAbortOnSyn */
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LINUX_MIB_TCPABORTONDATA, /* TCPAbortOnData */
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LINUX_MIB_TCPABORTONCLOSE, /* TCPAbortOnClose */
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LINUX_MIB_TCPABORTONMEMORY, /* TCPAbortOnMemory */
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LINUX_MIB_TCPABORTONTIMEOUT, /* TCPAbortOnTimeout */
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LINUX_MIB_TCPABORTONLINGER, /* TCPAbortOnLinger */
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LINUX_MIB_TCPABORTFAILED, /* TCPAbortFailed */
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LINUX_MIB_TCPMEMORYPRESSURES, /* TCPMemoryPressures */
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LINUX_MIB_TCPSACKDISCARD, /* TCPSACKDiscard */
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LINUX_MIB_TCPDSACKIGNOREDOLD, /* TCPSACKIgnoredOld */
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LINUX_MIB_TCPDSACKIGNOREDNOUNDO, /* TCPSACKIgnoredNoUndo */
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LINUX_MIB_TCPSPURIOUSRTOS, /* TCPSpuriousRTOs */
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LINUX_MIB_TCPMD5NOTFOUND, /* TCPMD5NotFound */
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LINUX_MIB_TCPMD5UNEXPECTED, /* TCPMD5Unexpected */
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LINUX_MIB_SACKSHIFTED,
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LINUX_MIB_SACKMERGED,
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LINUX_MIB_SACKSHIFTFALLBACK,
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LINUX_MIB_TCPBACKLOGDROP,
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LINUX_MIB_TCPMINTTLDROP, /* RFC 5082 */
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LINUX_MIB_TCPDEFERACCEPTDROP,
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LINUX_MIB_IPRPFILTER, /* IP Reverse Path Filter (rp_filter) */
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__LINUX_MIB_MAX
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};
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/* linux Xfrm mib definitions */
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enum
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{
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LINUX_MIB_XFRMNUM = 0,
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LINUX_MIB_XFRMINERROR, /* XfrmInError */
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LINUX_MIB_XFRMINBUFFERERROR, /* XfrmInBufferError */
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LINUX_MIB_XFRMINHDRERROR, /* XfrmInHdrError */
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LINUX_MIB_XFRMINNOSTATES, /* XfrmInNoStates */
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LINUX_MIB_XFRMINSTATEPROTOERROR, /* XfrmInStateProtoError */
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LINUX_MIB_XFRMINSTATEMODEERROR, /* XfrmInStateModeError */
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LINUX_MIB_XFRMINSTATESEQERROR, /* XfrmInStateSeqError */
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LINUX_MIB_XFRMINSTATEEXPIRED, /* XfrmInStateExpired */
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LINUX_MIB_XFRMINSTATEMISMATCH, /* XfrmInStateMismatch */
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LINUX_MIB_XFRMINSTATEINVALID, /* XfrmInStateInvalid */
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LINUX_MIB_XFRMINTMPLMISMATCH, /* XfrmInTmplMismatch */
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LINUX_MIB_XFRMINNOPOLS, /* XfrmInNoPols */
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LINUX_MIB_XFRMINPOLBLOCK, /* XfrmInPolBlock */
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LINUX_MIB_XFRMINPOLERROR, /* XfrmInPolError */
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LINUX_MIB_XFRMOUTERROR, /* XfrmOutError */
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LINUX_MIB_XFRMOUTBUNDLEGENERROR, /* XfrmOutBundleGenError */
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LINUX_MIB_XFRMOUTBUNDLECHECKERROR, /* XfrmOutBundleCheckError */
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LINUX_MIB_XFRMOUTNOSTATES, /* XfrmOutNoStates */
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LINUX_MIB_XFRMOUTSTATEPROTOERROR, /* XfrmOutStateProtoError */
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LINUX_MIB_XFRMOUTSTATEMODEERROR, /* XfrmOutStateModeError */
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LINUX_MIB_XFRMOUTSTATESEQERROR, /* XfrmOutStateSeqError */
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LINUX_MIB_XFRMOUTSTATEEXPIRED, /* XfrmOutStateExpired */
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LINUX_MIB_XFRMOUTPOLBLOCK, /* XfrmOutPolBlock */
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LINUX_MIB_XFRMOUTPOLDEAD, /* XfrmOutPolDead */
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LINUX_MIB_XFRMOUTPOLERROR, /* XfrmOutPolError */
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LINUX_MIB_XFRMFWDHDRERROR, /* XfrmFwdHdrError*/
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__LINUX_MIB_XFRMMAX
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};
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#endif /* _LINUX_SNMP_H */
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