projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| fc518953 FW |
1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 2 | ||
| 3 | #include <linux/seq_file.h> | |
| 4 | #include <net/ip.h> | |
| 5 | #include <net/mptcp.h> | |
| 6 | #include <net/snmp.h> | |
| 7 | #include <net/net_namespace.h> | |
| 8 | ||
| 9 | #include "mib.h" | |
| 10 | ||
| 11 | static const struct snmp_mib mptcp_snmp_list[] = { | |
| 12 | SNMP_MIB_ITEM("MPCapableSYNRX", MPTCP_MIB_MPCAPABLEPASSIVE), | |
| 5695eb88 PA |
13 | SNMP_MIB_ITEM("MPCapableSYNTX", MPTCP_MIB_MPCAPABLEACTIVE), |
| 14 | SNMP_MIB_ITEM("MPCapableSYNACKRX", MPTCP_MIB_MPCAPABLEACTIVEACK), | |
| fc518953 FW |
15 | SNMP_MIB_ITEM("MPCapableACKRX", MPTCP_MIB_MPCAPABLEPASSIVEACK), |
| 16 | SNMP_MIB_ITEM("MPCapableFallbackACK", MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK), | |
| 17 | SNMP_MIB_ITEM("MPCapableFallbackSYNACK", MPTCP_MIB_MPCAPABLEACTIVEFALLBACK), | |
| a16195e3 | 18 | SNMP_MIB_ITEM("MPFallbackTokenInit", MPTCP_MIB_TOKENFALLBACKINIT), |
| fc518953 FW |
19 | SNMP_MIB_ITEM("MPTCPRetrans", MPTCP_MIB_RETRANSSEGS), |
| 20 | SNMP_MIB_ITEM("MPJoinNoTokenFound", MPTCP_MIB_JOINNOTOKEN), | |
| 21 | SNMP_MIB_ITEM("MPJoinSynRx", MPTCP_MIB_JOINSYNRX), | |
| 22 | SNMP_MIB_ITEM("MPJoinSynAckRx", MPTCP_MIB_JOINSYNACKRX), | |
| 23 | SNMP_MIB_ITEM("MPJoinSynAckHMacFailure", MPTCP_MIB_JOINSYNACKMAC), | |
| 24 | SNMP_MIB_ITEM("MPJoinAckRx", MPTCP_MIB_JOINACKRX), | |
| 25 | SNMP_MIB_ITEM("MPJoinAckHMacFailure", MPTCP_MIB_JOINACKMAC), | |
| 26 | SNMP_MIB_ITEM("DSSNotMatching", MPTCP_MIB_DSSNOMATCH), | |
| 104125b8 | 27 | SNMP_MIB_ITEM("InfiniteMapTx", MPTCP_MIB_INFINITEMAPTX), |
| fc518953 | 28 | SNMP_MIB_ITEM("InfiniteMapRx", MPTCP_MIB_INFINITEMAPRX), |
| 06285da9 | 29 | SNMP_MIB_ITEM("DSSNoMatchTCP", MPTCP_MIB_DSSTCPMISMATCH), |
| fe3ab1cb | 30 | SNMP_MIB_ITEM("DataCsumErr", MPTCP_MIB_DATACSUMERR), |
| 06242e44 PA |
31 | SNMP_MIB_ITEM("OFOQueueTail", MPTCP_MIB_OFOQUEUETAIL), |
| 32 | SNMP_MIB_ITEM("OFOQueue", MPTCP_MIB_OFOQUEUE), | |
| 33 | SNMP_MIB_ITEM("OFOMerge", MPTCP_MIB_OFOMERGE), | |
| 34 | SNMP_MIB_ITEM("NoDSSInWindow", MPTCP_MIB_NODSSWINDOW), | |
| 35 | SNMP_MIB_ITEM("DuplicateData", MPTCP_MIB_DUPDATA), | |
| a877de06 GT |
36 | SNMP_MIB_ITEM("AddAddr", MPTCP_MIB_ADDADDR), |
| 37 | SNMP_MIB_ITEM("EchoAdd", MPTCP_MIB_ECHOADD), | |
| 2fbdd9ea | 38 | SNMP_MIB_ITEM("PortAdd", MPTCP_MIB_PORTADD), |
| f73c1194 | 39 | SNMP_MIB_ITEM("AddAddrDrop", MPTCP_MIB_ADDADDRDROP), |
| 2fbdd9ea GT |
40 | SNMP_MIB_ITEM("MPJoinPortSynRx", MPTCP_MIB_JOINPORTSYNRX), |
| 41 | SNMP_MIB_ITEM("MPJoinPortSynAckRx", MPTCP_MIB_JOINPORTSYNACKRX), | |
| 42 | SNMP_MIB_ITEM("MPJoinPortAckRx", MPTCP_MIB_JOINPORTACKRX), | |
| 43 | SNMP_MIB_ITEM("MismatchPortSynRx", MPTCP_MIB_MISMATCHPORTSYNRX), | |
| 44 | SNMP_MIB_ITEM("MismatchPortAckRx", MPTCP_MIB_MISMATCHPORTACKRX), | |
| 7a7e52e3 | 45 | SNMP_MIB_ITEM("RmAddr", MPTCP_MIB_RMADDR), |
| f73c1194 | 46 | SNMP_MIB_ITEM("RmAddrDrop", MPTCP_MIB_RMADDRDROP), |
| 7a7e52e3 | 47 | SNMP_MIB_ITEM("RmSubflow", MPTCP_MIB_RMSUBFLOW), |
| 0be2ac28 GT |
48 | SNMP_MIB_ITEM("MPPrioTx", MPTCP_MIB_MPPRIOTX), |
| 49 | SNMP_MIB_ITEM("MPPrioRx", MPTCP_MIB_MPPRIORX), | |
| eb7f3365 GT |
50 | SNMP_MIB_ITEM("MPFailTx", MPTCP_MIB_MPFAILTX), |
| 51 | SNMP_MIB_ITEM("MPFailRx", MPTCP_MIB_MPFAILRX), | |
| 1e75629c GT |
52 | SNMP_MIB_ITEM("MPFastcloseTx", MPTCP_MIB_MPFASTCLOSETX), |
| 53 | SNMP_MIB_ITEM("MPFastcloseRx", MPTCP_MIB_MPFASTCLOSERX), | |
| e40dd439 GT |
54 | SNMP_MIB_ITEM("MPRstTx", MPTCP_MIB_MPRSTTX), |
| 55 | SNMP_MIB_ITEM("MPRstRx", MPTCP_MIB_MPRSTRX), | |
| ce599c51 | 56 | SNMP_MIB_ITEM("RcvPruned", MPTCP_MIB_RCVPRUNED), |
| fc1b4e3b PA |
57 | SNMP_MIB_ITEM("SubflowStale", MPTCP_MIB_SUBFLOWSTALE), |
| 58 | SNMP_MIB_ITEM("SubflowRecover", MPTCP_MIB_SUBFLOWRECOVER), | |
| 92be2f52 | 59 | SNMP_MIB_ITEM("SndWndShared", MPTCP_MIB_SNDWNDSHARED), |
| 38acb626 PA |
60 | SNMP_MIB_ITEM("RcvWndShared", MPTCP_MIB_RCVWNDSHARED), |
| 61 | SNMP_MIB_ITEM("RcvWndConflictUpdate", MPTCP_MIB_RCVWNDCONFLICTUPDATE), | |
| 62 | SNMP_MIB_ITEM("RcvWndConflict", MPTCP_MIB_RCVWNDCONFLICT), | |
| fc518953 FW |
63 | SNMP_MIB_SENTINEL |
| 64 | }; | |
| 65 | ||
| 66 | /* mptcp_mib_alloc - allocate percpu mib counters | |
| 67 | * | |
| 68 | * These are allocated when the first mptcp socket is created so | |
| 69 | * we do not waste percpu memory if mptcp isn't in use. | |
| 70 | */ | |
| 71 | bool mptcp_mib_alloc(struct net *net) | |
| 72 | { | |
| 73 | struct mptcp_mib __percpu *mib = alloc_percpu(struct mptcp_mib); | |
| 74 | ||
| 75 | if (!mib) | |
| 76 | return false; | |
| 77 | ||
| 78 | if (cmpxchg(&net->mib.mptcp_statistics, NULL, mib)) | |
| 79 | free_percpu(mib); | |
| 80 | ||
| 81 | return true; | |
| 82 | } | |
| 83 | ||
| 84 | void mptcp_seq_show(struct seq_file *seq) | |
| 85 | { | |
| acbd0c81 | 86 | unsigned long sum[ARRAY_SIZE(mptcp_snmp_list) - 1]; |
| fc518953 FW |
87 | struct net *net = seq->private; |
| 88 | int i; | |
| 89 | ||
| 90 | seq_puts(seq, "MPTcpExt:"); | |
| 91 | for (i = 0; mptcp_snmp_list[i].name; i++) | |
| 92 | seq_printf(seq, " %s", mptcp_snmp_list[i].name); | |
| 93 | ||
| 94 | seq_puts(seq, "\nMPTcpExt:"); | |
| 95 | ||
| acbd0c81 ED |
96 | memset(sum, 0, sizeof(sum)); |
| 97 | if (net->mib.mptcp_statistics) | |
| 98 | snmp_get_cpu_field_batch(sum, mptcp_snmp_list, | |
| 99 | net->mib.mptcp_statistics); | |
| fc518953 FW |
100 | |
| 101 | for (i = 0; mptcp_snmp_list[i].name; i++) | |
| acbd0c81 ED |
102 | seq_printf(seq, " %lu", sum[i]); |
| 103 | ||
| fc518953 FW |
104 | seq_putc(seq, '\n'); |
| 105 | } |