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 | } |