// SPDX-License-Identifier: GPL-2.0-or-later #include <linux/seq_file.h>#include <net/ip.h>#include <net/mptcp.h>#include <net/snmp.h>#include <net/net_namespace.h>#include "mib.h" static const struct snmp_mib mptcp_snmp_list[] = {"MPCapableSYNRX" , MPTCP_MIB_MPCAPABLEPASSIVE),"MPCapableSYNTX" , MPTCP_MIB_MPCAPABLEACTIVE),"MPCapableSYNACKRX" , MPTCP_MIB_MPCAPABLEACTIVEACK),"MPCapableACKRX" , MPTCP_MIB_MPCAPABLEPASSIVEACK),"MPCapableFallbackACK" , MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK),"MPCapableFallbackSYNACK" , MPTCP_MIB_MPCAPABLEACTIVEFALLBACK),"MPCapableSYNTXDrop" , MPTCP_MIB_MPCAPABLEACTIVEDROP),"MPCapableSYNTXDisabled" , MPTCP_MIB_MPCAPABLEACTIVEDISABLED),"MPCapableEndpAttempt" , MPTCP_MIB_MPCAPABLEENDPATTEMPT),"MPFallbackTokenInit" , MPTCP_MIB_TOKENFALLBACKINIT),"MPTCPRetrans" , MPTCP_MIB_RETRANSSEGS),"MPJoinNoTokenFound" , MPTCP_MIB_JOINNOTOKEN),"MPJoinSynRx" , MPTCP_MIB_JOINSYNRX),"MPJoinSynBackupRx" , MPTCP_MIB_JOINSYNBACKUPRX),"MPJoinSynAckRx" , MPTCP_MIB_JOINSYNACKRX),"MPJoinSynAckBackupRx" , MPTCP_MIB_JOINSYNACKBACKUPRX),"MPJoinSynAckHMacFailure" , MPTCP_MIB_JOINSYNACKMAC),"MPJoinAckRx" , MPTCP_MIB_JOINACKRX),"MPJoinAckHMacFailure" , MPTCP_MIB_JOINACKMAC),"MPJoinRejected" , MPTCP_MIB_JOINREJECTED),"MPJoinSynTx" , MPTCP_MIB_JOINSYNTX),"MPJoinSynTxCreatSkErr" , MPTCP_MIB_JOINSYNTXCREATSKERR),"MPJoinSynTxBindErr" , MPTCP_MIB_JOINSYNTXBINDERR),"MPJoinSynTxConnectErr" , MPTCP_MIB_JOINSYNTXCONNECTERR),"DSSNotMatching" , MPTCP_MIB_DSSNOMATCH),"DSSCorruptionFallback" , MPTCP_MIB_DSSCORRUPTIONFALLBACK),"DSSCorruptionReset" , MPTCP_MIB_DSSCORRUPTIONRESET),"InfiniteMapTx" , MPTCP_MIB_INFINITEMAPTX),"InfiniteMapRx" , MPTCP_MIB_INFINITEMAPRX),"DSSNoMatchTCP" , MPTCP_MIB_DSSTCPMISMATCH),"DataCsumErr" , MPTCP_MIB_DATACSUMERR),"OFOQueueTail" , MPTCP_MIB_OFOQUEUETAIL),"OFOQueue" , MPTCP_MIB_OFOQUEUE),"OFOMerge" , MPTCP_MIB_OFOMERGE),"NoDSSInWindow" , MPTCP_MIB_NODSSWINDOW),"DuplicateData" , MPTCP_MIB_DUPDATA),"AddAddr" , MPTCP_MIB_ADDADDR),"AddAddrTx" , MPTCP_MIB_ADDADDRTX),"AddAddrTxDrop" , MPTCP_MIB_ADDADDRTXDROP),"EchoAdd" , MPTCP_MIB_ECHOADD),"EchoAddTx" , MPTCP_MIB_ECHOADDTX),"EchoAddTxDrop" , MPTCP_MIB_ECHOADDTXDROP),"PortAdd" , MPTCP_MIB_PORTADD),"AddAddrDrop" , MPTCP_MIB_ADDADDRDROP),"MPJoinPortSynRx" , MPTCP_MIB_JOINPORTSYNRX),"MPJoinPortSynAckRx" , MPTCP_MIB_JOINPORTSYNACKRX),"MPJoinPortAckRx" , MPTCP_MIB_JOINPORTACKRX),"MismatchPortSynRx" , MPTCP_MIB_MISMATCHPORTSYNRX),"MismatchPortAckRx" , MPTCP_MIB_MISMATCHPORTACKRX),"RmAddr" , MPTCP_MIB_RMADDR),"RmAddrDrop" , MPTCP_MIB_RMADDRDROP),"RmAddrTx" , MPTCP_MIB_RMADDRTX),"RmAddrTxDrop" , MPTCP_MIB_RMADDRTXDROP),"RmSubflow" , MPTCP_MIB_RMSUBFLOW),"MPPrioTx" , MPTCP_MIB_MPPRIOTX),"MPPrioRx" , MPTCP_MIB_MPPRIORX),"MPFailTx" , MPTCP_MIB_MPFAILTX),"MPFailRx" , MPTCP_MIB_MPFAILRX),"MPFastcloseTx" , MPTCP_MIB_MPFASTCLOSETX),"MPFastcloseRx" , MPTCP_MIB_MPFASTCLOSERX),"MPRstTx" , MPTCP_MIB_MPRSTTX),"MPRstRx" , MPTCP_MIB_MPRSTRX),"RcvPruned" , MPTCP_MIB_RCVPRUNED),"SubflowStale" , MPTCP_MIB_SUBFLOWSTALE),"SubflowRecover" , MPTCP_MIB_SUBFLOWRECOVER),"SndWndShared" , MPTCP_MIB_SNDWNDSHARED),"RcvWndShared" , MPTCP_MIB_RCVWNDSHARED),"RcvWndConflictUpdate" , MPTCP_MIB_RCVWNDCONFLICTUPDATE),"RcvWndConflict" , MPTCP_MIB_RCVWNDCONFLICT),"MPCurrEstab" , MPTCP_MIB_CURRESTAB),"Blackhole" , MPTCP_MIB_BLACKHOLE),"MPCapableDataFallback" , MPTCP_MIB_MPCAPABLEDATAFALLBACK),"MD5SigFallback" , MPTCP_MIB_MD5SIGFALLBACK),"DssFallback" , MPTCP_MIB_DSSFALLBACK),"SimultConnectFallback" , MPTCP_MIB_SIMULTCONNFALLBACK),"FallbackFailed" , MPTCP_MIB_FALLBACKFAILED),/* mptcp_mib_alloc - allocate percpu mib counters * * These are allocated when the first mptcp socket is created so * we do not waste percpu memory if mptcp isn't in use. bool mptcp_mib_alloc(struct net *net)struct mptcp_mib __percpu *mib = alloc_percpu(struct mptcp_mib);if (!mib)return false ;if (cmpxchg(&net->mib.mptcp_statistics, NULL, mib))return true ;void mptcp_seq_show(struct seq_file *seq)unsigned long sum[ARRAY_SIZE(mptcp_snmp_list) - 1];struct net *net = seq->private ;int i;"MPTcpExt:" );for (i = 0; mptcp_snmp_list[i].name; i++)" %s" , mptcp_snmp_list[i].name);"\nMPTcpExt:" );sizeof (sum));if (net->mib.mptcp_statistics)for (i = 0; mptcp_snmp_list[i].name; i++)" %lu" , sum[i]);'\n' );
Messung V0.5 C=95 H=92 G=93
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