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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
11static const struct snmp_mib mptcp_snmp_list[] = {
12 SNMP_MIB_ITEM("MPCapableSYNRX", MPTCP_MIB_MPCAPABLEPASSIVE),
13 SNMP_MIB_ITEM("MPCapableSYNTX", MPTCP_MIB_MPCAPABLEACTIVE),
14 SNMP_MIB_ITEM("MPCapableSYNACKRX", MPTCP_MIB_MPCAPABLEACTIVEACK),
15 SNMP_MIB_ITEM("MPCapableACKRX", MPTCP_MIB_MPCAPABLEPASSIVEACK),
16 SNMP_MIB_ITEM("MPCapableFallbackACK", MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK),
17 SNMP_MIB_ITEM("MPCapableFallbackSYNACK", MPTCP_MIB_MPCAPABLEACTIVEFALLBACK),
18 SNMP_MIB_ITEM("MPCapableSYNTXDrop", MPTCP_MIB_MPCAPABLEACTIVEDROP),
19 SNMP_MIB_ITEM("MPCapableSYNTXDisabled", MPTCP_MIB_MPCAPABLEACTIVEDISABLED),
20 SNMP_MIB_ITEM("MPCapableEndpAttempt", MPTCP_MIB_MPCAPABLEENDPATTEMPT),
21 SNMP_MIB_ITEM("MPFallbackTokenInit", MPTCP_MIB_TOKENFALLBACKINIT),
22 SNMP_MIB_ITEM("MPTCPRetrans", MPTCP_MIB_RETRANSSEGS),
23 SNMP_MIB_ITEM("MPJoinNoTokenFound", MPTCP_MIB_JOINNOTOKEN),
24 SNMP_MIB_ITEM("MPJoinSynRx", MPTCP_MIB_JOINSYNRX),
25 SNMP_MIB_ITEM("MPJoinSynBackupRx", MPTCP_MIB_JOINSYNBACKUPRX),
26 SNMP_MIB_ITEM("MPJoinSynAckRx", MPTCP_MIB_JOINSYNACKRX),
27 SNMP_MIB_ITEM("MPJoinSynAckBackupRx", MPTCP_MIB_JOINSYNACKBACKUPRX),
28 SNMP_MIB_ITEM("MPJoinSynAckHMacFailure", MPTCP_MIB_JOINSYNACKMAC),
29 SNMP_MIB_ITEM("MPJoinAckRx", MPTCP_MIB_JOINACKRX),
30 SNMP_MIB_ITEM("MPJoinAckHMacFailure", MPTCP_MIB_JOINACKMAC),
31 SNMP_MIB_ITEM("MPJoinSynTx", MPTCP_MIB_JOINSYNTX),
32 SNMP_MIB_ITEM("MPJoinSynTxCreatSkErr", MPTCP_MIB_JOINSYNTXCREATSKERR),
33 SNMP_MIB_ITEM("MPJoinSynTxBindErr", MPTCP_MIB_JOINSYNTXBINDERR),
34 SNMP_MIB_ITEM("MPJoinSynTxConnectErr", MPTCP_MIB_JOINSYNTXCONNECTERR),
35 SNMP_MIB_ITEM("DSSNotMatching", MPTCP_MIB_DSSNOMATCH),
36 SNMP_MIB_ITEM("DSSCorruptionFallback", MPTCP_MIB_DSSCORRUPTIONFALLBACK),
37 SNMP_MIB_ITEM("DSSCorruptionReset", MPTCP_MIB_DSSCORRUPTIONRESET),
38 SNMP_MIB_ITEM("InfiniteMapTx", MPTCP_MIB_INFINITEMAPTX),
39 SNMP_MIB_ITEM("InfiniteMapRx", MPTCP_MIB_INFINITEMAPRX),
40 SNMP_MIB_ITEM("DSSNoMatchTCP", MPTCP_MIB_DSSTCPMISMATCH),
41 SNMP_MIB_ITEM("DataCsumErr", MPTCP_MIB_DATACSUMERR),
42 SNMP_MIB_ITEM("OFOQueueTail", MPTCP_MIB_OFOQUEUETAIL),
43 SNMP_MIB_ITEM("OFOQueue", MPTCP_MIB_OFOQUEUE),
44 SNMP_MIB_ITEM("OFOMerge", MPTCP_MIB_OFOMERGE),
45 SNMP_MIB_ITEM("NoDSSInWindow", MPTCP_MIB_NODSSWINDOW),
46 SNMP_MIB_ITEM("DuplicateData", MPTCP_MIB_DUPDATA),
47 SNMP_MIB_ITEM("AddAddr", MPTCP_MIB_ADDADDR),
48 SNMP_MIB_ITEM("AddAddrTx", MPTCP_MIB_ADDADDRTX),
49 SNMP_MIB_ITEM("AddAddrTxDrop", MPTCP_MIB_ADDADDRTXDROP),
50 SNMP_MIB_ITEM("EchoAdd", MPTCP_MIB_ECHOADD),
51 SNMP_MIB_ITEM("EchoAddTx", MPTCP_MIB_ECHOADDTX),
52 SNMP_MIB_ITEM("EchoAddTxDrop", MPTCP_MIB_ECHOADDTXDROP),
53 SNMP_MIB_ITEM("PortAdd", MPTCP_MIB_PORTADD),
54 SNMP_MIB_ITEM("AddAddrDrop", MPTCP_MIB_ADDADDRDROP),
55 SNMP_MIB_ITEM("MPJoinPortSynRx", MPTCP_MIB_JOINPORTSYNRX),
56 SNMP_MIB_ITEM("MPJoinPortSynAckRx", MPTCP_MIB_JOINPORTSYNACKRX),
57 SNMP_MIB_ITEM("MPJoinPortAckRx", MPTCP_MIB_JOINPORTACKRX),
58 SNMP_MIB_ITEM("MismatchPortSynRx", MPTCP_MIB_MISMATCHPORTSYNRX),
59 SNMP_MIB_ITEM("MismatchPortAckRx", MPTCP_MIB_MISMATCHPORTACKRX),
60 SNMP_MIB_ITEM("RmAddr", MPTCP_MIB_RMADDR),
61 SNMP_MIB_ITEM("RmAddrDrop", MPTCP_MIB_RMADDRDROP),
62 SNMP_MIB_ITEM("RmAddrTx", MPTCP_MIB_RMADDRTX),
63 SNMP_MIB_ITEM("RmAddrTxDrop", MPTCP_MIB_RMADDRTXDROP),
64 SNMP_MIB_ITEM("RmSubflow", MPTCP_MIB_RMSUBFLOW),
65 SNMP_MIB_ITEM("MPPrioTx", MPTCP_MIB_MPPRIOTX),
66 SNMP_MIB_ITEM("MPPrioRx", MPTCP_MIB_MPPRIORX),
67 SNMP_MIB_ITEM("MPFailTx", MPTCP_MIB_MPFAILTX),
68 SNMP_MIB_ITEM("MPFailRx", MPTCP_MIB_MPFAILRX),
69 SNMP_MIB_ITEM("MPFastcloseTx", MPTCP_MIB_MPFASTCLOSETX),
70 SNMP_MIB_ITEM("MPFastcloseRx", MPTCP_MIB_MPFASTCLOSERX),
71 SNMP_MIB_ITEM("MPRstTx", MPTCP_MIB_MPRSTTX),
72 SNMP_MIB_ITEM("MPRstRx", MPTCP_MIB_MPRSTRX),
73 SNMP_MIB_ITEM("RcvPruned", MPTCP_MIB_RCVPRUNED),
74 SNMP_MIB_ITEM("SubflowStale", MPTCP_MIB_SUBFLOWSTALE),
75 SNMP_MIB_ITEM("SubflowRecover", MPTCP_MIB_SUBFLOWRECOVER),
76 SNMP_MIB_ITEM("SndWndShared", MPTCP_MIB_SNDWNDSHARED),
77 SNMP_MIB_ITEM("RcvWndShared", MPTCP_MIB_RCVWNDSHARED),
78 SNMP_MIB_ITEM("RcvWndConflictUpdate", MPTCP_MIB_RCVWNDCONFLICTUPDATE),
79 SNMP_MIB_ITEM("RcvWndConflict", MPTCP_MIB_RCVWNDCONFLICT),
80 SNMP_MIB_ITEM("MPCurrEstab", MPTCP_MIB_CURRESTAB),
81 SNMP_MIB_ITEM("Blackhole", MPTCP_MIB_BLACKHOLE),
82 SNMP_MIB_SENTINEL
83};
84
85/* mptcp_mib_alloc - allocate percpu mib counters
86 *
87 * These are allocated when the first mptcp socket is created so
88 * we do not waste percpu memory if mptcp isn't in use.
89 */
90bool mptcp_mib_alloc(struct net *net)
91{
92 struct mptcp_mib __percpu *mib = alloc_percpu(struct mptcp_mib);
93
94 if (!mib)
95 return false;
96
97 if (cmpxchg(&net->mib.mptcp_statistics, NULL, mib))
98 free_percpu(mib);
99
100 return true;
101}
102
103void mptcp_seq_show(struct seq_file *seq)
104{
105 unsigned long sum[ARRAY_SIZE(mptcp_snmp_list) - 1];
106 struct net *net = seq->private;
107 int i;
108
109 seq_puts(seq, "MPTcpExt:");
110 for (i = 0; mptcp_snmp_list[i].name; i++)
111 seq_printf(seq, " %s", mptcp_snmp_list[i].name);
112
113 seq_puts(seq, "\nMPTcpExt:");
114
115 memset(sum, 0, sizeof(sum));
116 if (net->mib.mptcp_statistics)
117 snmp_get_cpu_field_batch(sum, mptcp_snmp_list,
118 net->mib.mptcp_statistics);
119
120 for (i = 0; mptcp_snmp_list[i].name; i++)
121 seq_printf(seq, " %lu", sum[i]);
122
123 seq_putc(seq, '\n');
124}
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
11static const struct snmp_mib mptcp_snmp_list[] = {
12 SNMP_MIB_ITEM("MPCapableSYNRX", MPTCP_MIB_MPCAPABLEPASSIVE),
13 SNMP_MIB_ITEM("MPCapableSYNTX", MPTCP_MIB_MPCAPABLEACTIVE),
14 SNMP_MIB_ITEM("MPCapableSYNACKRX", MPTCP_MIB_MPCAPABLEACTIVEACK),
15 SNMP_MIB_ITEM("MPCapableACKRX", MPTCP_MIB_MPCAPABLEPASSIVEACK),
16 SNMP_MIB_ITEM("MPCapableFallbackACK", MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK),
17 SNMP_MIB_ITEM("MPCapableFallbackSYNACK", MPTCP_MIB_MPCAPABLEACTIVEFALLBACK),
18 SNMP_MIB_ITEM("MPFallbackTokenInit", MPTCP_MIB_TOKENFALLBACKINIT),
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),
27 SNMP_MIB_ITEM("InfiniteMapTx", MPTCP_MIB_INFINITEMAPTX),
28 SNMP_MIB_ITEM("InfiniteMapRx", MPTCP_MIB_INFINITEMAPRX),
29 SNMP_MIB_ITEM("DSSNoMatchTCP", MPTCP_MIB_DSSTCPMISMATCH),
30 SNMP_MIB_ITEM("DataCsumErr", MPTCP_MIB_DATACSUMERR),
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),
36 SNMP_MIB_ITEM("AddAddr", MPTCP_MIB_ADDADDR),
37 SNMP_MIB_ITEM("EchoAdd", MPTCP_MIB_ECHOADD),
38 SNMP_MIB_ITEM("PortAdd", MPTCP_MIB_PORTADD),
39 SNMP_MIB_ITEM("AddAddrDrop", MPTCP_MIB_ADDADDRDROP),
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),
45 SNMP_MIB_ITEM("RmAddr", MPTCP_MIB_RMADDR),
46 SNMP_MIB_ITEM("RmAddrDrop", MPTCP_MIB_RMADDRDROP),
47 SNMP_MIB_ITEM("RmSubflow", MPTCP_MIB_RMSUBFLOW),
48 SNMP_MIB_ITEM("MPPrioTx", MPTCP_MIB_MPPRIOTX),
49 SNMP_MIB_ITEM("MPPrioRx", MPTCP_MIB_MPPRIORX),
50 SNMP_MIB_ITEM("MPFailTx", MPTCP_MIB_MPFAILTX),
51 SNMP_MIB_ITEM("MPFailRx", MPTCP_MIB_MPFAILRX),
52 SNMP_MIB_ITEM("MPFastcloseTx", MPTCP_MIB_MPFASTCLOSETX),
53 SNMP_MIB_ITEM("MPFastcloseRx", MPTCP_MIB_MPFASTCLOSERX),
54 SNMP_MIB_ITEM("MPRstTx", MPTCP_MIB_MPRSTTX),
55 SNMP_MIB_ITEM("MPRstRx", MPTCP_MIB_MPRSTRX),
56 SNMP_MIB_ITEM("RcvPruned", MPTCP_MIB_RCVPRUNED),
57 SNMP_MIB_ITEM("SubflowStale", MPTCP_MIB_SUBFLOWSTALE),
58 SNMP_MIB_ITEM("SubflowRecover", MPTCP_MIB_SUBFLOWRECOVER),
59 SNMP_MIB_ITEM("SndWndShared", MPTCP_MIB_SNDWNDSHARED),
60 SNMP_MIB_ITEM("RcvWndShared", MPTCP_MIB_RCVWNDSHARED),
61 SNMP_MIB_ITEM("RcvWndConflictUpdate", MPTCP_MIB_RCVWNDCONFLICTUPDATE),
62 SNMP_MIB_ITEM("RcvWndConflict", MPTCP_MIB_RCVWNDCONFLICT),
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 */
71bool 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
84void mptcp_seq_show(struct seq_file *seq)
85{
86 unsigned long sum[ARRAY_SIZE(mptcp_snmp_list) - 1];
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
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);
100
101 for (i = 0; mptcp_snmp_list[i].name; i++)
102 seq_printf(seq, " %lu", sum[i]);
103
104 seq_putc(seq, '\n');
105}