1 /* SPDX-License-Identifier: GPL-2.0-or-later * 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 2
3 #include <net/inet_common.h> 3 #include <net/inet_common.h>
4 4
5 enum linux_mptcp_mib_field { 5 enum linux_mptcp_mib_field {
6 MPTCP_MIB_NUM = 0, 6 MPTCP_MIB_NUM = 0,
7 MPTCP_MIB_MPCAPABLEPASSIVE, /* Rec 7 MPTCP_MIB_MPCAPABLEPASSIVE, /* Received SYN with MP_CAPABLE */
8 MPTCP_MIB_MPCAPABLEACTIVE, /* Sen 8 MPTCP_MIB_MPCAPABLEACTIVE, /* Sent SYN with MP_CAPABLE */
9 MPTCP_MIB_MPCAPABLEACTIVEACK, /* Rec 9 MPTCP_MIB_MPCAPABLEACTIVEACK, /* Received SYN/ACK with MP_CAPABLE */
10 MPTCP_MIB_MPCAPABLEPASSIVEACK, /* Rec 10 MPTCP_MIB_MPCAPABLEPASSIVEACK, /* Received third ACK with MP_CAPABLE */
11 MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK,/* 11 MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK,/* Server-side fallback during 3-way handshake */
12 MPTCP_MIB_MPCAPABLEACTIVEFALLBACK, /* 12 MPTCP_MIB_MPCAPABLEACTIVEFALLBACK, /* Client-side fallback during 3-way handshake */
13 MPTCP_MIB_MPCAPABLEACTIVEDROP, /* Cli 13 MPTCP_MIB_MPCAPABLEACTIVEDROP, /* Client-side fallback due to a MPC drop */
14 MPTCP_MIB_MPCAPABLEACTIVEDISABLED, /* 14 MPTCP_MIB_MPCAPABLEACTIVEDISABLED, /* Client-side disabled due to past issues */
15 MPTCP_MIB_MPCAPABLEENDPATTEMPT, /* Pro 15 MPTCP_MIB_MPCAPABLEENDPATTEMPT, /* Prohibited MPC to port-based endp */
16 MPTCP_MIB_TOKENFALLBACKINIT, /* Cou 16 MPTCP_MIB_TOKENFALLBACKINIT, /* Could not init/allocate token */
17 MPTCP_MIB_RETRANSSEGS, /* Seg 17 MPTCP_MIB_RETRANSSEGS, /* Segments retransmitted at the MPTCP-level */
18 MPTCP_MIB_JOINNOTOKEN, /* Rec 18 MPTCP_MIB_JOINNOTOKEN, /* Received MP_JOIN but the token was not found */
19 MPTCP_MIB_JOINSYNRX, /* Rec 19 MPTCP_MIB_JOINSYNRX, /* Received a SYN + MP_JOIN */
20 MPTCP_MIB_JOINSYNBACKUPRX, /* Rec 20 MPTCP_MIB_JOINSYNBACKUPRX, /* Received a SYN + MP_JOIN + backup flag */
21 MPTCP_MIB_JOINSYNACKRX, /* Rec 21 MPTCP_MIB_JOINSYNACKRX, /* Received a SYN/ACK + MP_JOIN */
22 MPTCP_MIB_JOINSYNACKBACKUPRX, /* Rec 22 MPTCP_MIB_JOINSYNACKBACKUPRX, /* Received a SYN/ACK + MP_JOIN + backup flag */
23 MPTCP_MIB_JOINSYNACKMAC, /* HMA 23 MPTCP_MIB_JOINSYNACKMAC, /* HMAC was wrong on SYN/ACK + MP_JOIN */
24 MPTCP_MIB_JOINACKRX, /* Rec 24 MPTCP_MIB_JOINACKRX, /* Received an ACK + MP_JOIN */
25 MPTCP_MIB_JOINACKMAC, /* HMA 25 MPTCP_MIB_JOINACKMAC, /* HMAC was wrong on ACK + MP_JOIN */
26 MPTCP_MIB_JOINSYNTX, /* Sen 26 MPTCP_MIB_JOINSYNTX, /* Sending a SYN + MP_JOIN */
27 MPTCP_MIB_JOINSYNTXCREATSKERR, /* Not 27 MPTCP_MIB_JOINSYNTXCREATSKERR, /* Not able to create a socket when sending a SYN + MP_JOIN */
28 MPTCP_MIB_JOINSYNTXBINDERR, /* Not 28 MPTCP_MIB_JOINSYNTXBINDERR, /* Not able to bind() the address when sending a SYN + MP_JOIN */
29 MPTCP_MIB_JOINSYNTXCONNECTERR, /* Not 29 MPTCP_MIB_JOINSYNTXCONNECTERR, /* Not able to connect() when sending a SYN + MP_JOIN */
30 MPTCP_MIB_DSSNOMATCH, /* Rec 30 MPTCP_MIB_DSSNOMATCH, /* Received a new mapping that did not match the previous one */
31 MPTCP_MIB_DSSCORRUPTIONFALLBACK,/* DSS 31 MPTCP_MIB_DSSCORRUPTIONFALLBACK,/* DSS corruption detected, fallback */
32 MPTCP_MIB_DSSCORRUPTIONRESET, /* DSS 32 MPTCP_MIB_DSSCORRUPTIONRESET, /* DSS corruption detected, MPJ subflow reset */
33 MPTCP_MIB_INFINITEMAPTX, /* Sen 33 MPTCP_MIB_INFINITEMAPTX, /* Sent an infinite mapping */
34 MPTCP_MIB_INFINITEMAPRX, /* Rec 34 MPTCP_MIB_INFINITEMAPRX, /* Received an infinite mapping */
35 MPTCP_MIB_DSSTCPMISMATCH, /* DSS 35 MPTCP_MIB_DSSTCPMISMATCH, /* DSS-mapping did not map with TCP's sequence numbers */
36 MPTCP_MIB_DATACSUMERR, /* The 36 MPTCP_MIB_DATACSUMERR, /* The data checksum fail */
37 MPTCP_MIB_OFOQUEUETAIL, /* Segments in 37 MPTCP_MIB_OFOQUEUETAIL, /* Segments inserted into OoO queue tail */
38 MPTCP_MIB_OFOQUEUE, /* Seg 38 MPTCP_MIB_OFOQUEUE, /* Segments inserted into OoO queue */
39 MPTCP_MIB_OFOMERGE, /* Seg 39 MPTCP_MIB_OFOMERGE, /* Segments merged in OoO queue */
40 MPTCP_MIB_NODSSWINDOW, /* Seg 40 MPTCP_MIB_NODSSWINDOW, /* Segments not in MPTCP windows */
41 MPTCP_MIB_DUPDATA, /* Seg 41 MPTCP_MIB_DUPDATA, /* Segments discarded due to duplicate DSS */
42 MPTCP_MIB_ADDADDR, /* Rec 42 MPTCP_MIB_ADDADDR, /* Received ADD_ADDR with echo-flag=0 */
43 MPTCP_MIB_ADDADDRTX, /* Sen 43 MPTCP_MIB_ADDADDRTX, /* Sent ADD_ADDR with echo-flag=0 */
44 MPTCP_MIB_ADDADDRTXDROP, /* ADD 44 MPTCP_MIB_ADDADDRTXDROP, /* ADD_ADDR with echo-flag=0 not send due to
45 * res 45 * resource exhaustion
46 */ 46 */
47 MPTCP_MIB_ECHOADD, /* Rec 47 MPTCP_MIB_ECHOADD, /* Received ADD_ADDR with echo-flag=1 */
48 MPTCP_MIB_ECHOADDTX, /* Sen 48 MPTCP_MIB_ECHOADDTX, /* Send ADD_ADDR with echo-flag=1 */
49 MPTCP_MIB_ECHOADDTXDROP, /* ADD 49 MPTCP_MIB_ECHOADDTXDROP, /* ADD_ADDR with echo-flag=1 not send due
50 * to 50 * to resource exhaustion
51 */ 51 */
52 MPTCP_MIB_PORTADD, /* Rec 52 MPTCP_MIB_PORTADD, /* Received ADD_ADDR with a port-number */
53 MPTCP_MIB_ADDADDRDROP, /* Dro 53 MPTCP_MIB_ADDADDRDROP, /* Dropped incoming ADD_ADDR */
54 MPTCP_MIB_JOINPORTSYNRX, /* Rec 54 MPTCP_MIB_JOINPORTSYNRX, /* Received a SYN MP_JOIN with a different port-number */
55 MPTCP_MIB_JOINPORTSYNACKRX, /* Rec 55 MPTCP_MIB_JOINPORTSYNACKRX, /* Received a SYNACK MP_JOIN with a different port-number */
56 MPTCP_MIB_JOINPORTACKRX, /* Rec 56 MPTCP_MIB_JOINPORTACKRX, /* Received an ACK MP_JOIN with a different port-number */
57 MPTCP_MIB_MISMATCHPORTSYNRX, /* Rec 57 MPTCP_MIB_MISMATCHPORTSYNRX, /* Received a SYN MP_JOIN with a mismatched port-number */
58 MPTCP_MIB_MISMATCHPORTACKRX, /* Rec 58 MPTCP_MIB_MISMATCHPORTACKRX, /* Received an ACK MP_JOIN with a mismatched port-number */
59 MPTCP_MIB_RMADDR, /* Rec 59 MPTCP_MIB_RMADDR, /* Received RM_ADDR */
60 MPTCP_MIB_RMADDRDROP, /* Dro 60 MPTCP_MIB_RMADDRDROP, /* Dropped incoming RM_ADDR */
61 MPTCP_MIB_RMADDRTX, /* Sen 61 MPTCP_MIB_RMADDRTX, /* Sent RM_ADDR */
62 MPTCP_MIB_RMADDRTXDROP, /* RM_ 62 MPTCP_MIB_RMADDRTXDROP, /* RM_ADDR not sent due to resource exhaustion */
63 MPTCP_MIB_RMSUBFLOW, /* Rem 63 MPTCP_MIB_RMSUBFLOW, /* Remove a subflow */
64 MPTCP_MIB_MPPRIOTX, /* Tra 64 MPTCP_MIB_MPPRIOTX, /* Transmit a MP_PRIO */
65 MPTCP_MIB_MPPRIORX, /* Rec 65 MPTCP_MIB_MPPRIORX, /* Received a MP_PRIO */
66 MPTCP_MIB_MPFAILTX, /* Tra 66 MPTCP_MIB_MPFAILTX, /* Transmit a MP_FAIL */
67 MPTCP_MIB_MPFAILRX, /* Rec 67 MPTCP_MIB_MPFAILRX, /* Received a MP_FAIL */
68 MPTCP_MIB_MPFASTCLOSETX, /* Tra 68 MPTCP_MIB_MPFASTCLOSETX, /* Transmit a MP_FASTCLOSE */
69 MPTCP_MIB_MPFASTCLOSERX, /* Rec 69 MPTCP_MIB_MPFASTCLOSERX, /* Received a MP_FASTCLOSE */
70 MPTCP_MIB_MPRSTTX, /* Tra 70 MPTCP_MIB_MPRSTTX, /* Transmit a MP_RST */
71 MPTCP_MIB_MPRSTRX, /* Rec 71 MPTCP_MIB_MPRSTRX, /* Received a MP_RST */
72 MPTCP_MIB_RCVPRUNED, /* Inc 72 MPTCP_MIB_RCVPRUNED, /* Incoming packet dropped due to memory limit */
73 MPTCP_MIB_SUBFLOWSTALE, /* Sub 73 MPTCP_MIB_SUBFLOWSTALE, /* Subflows entered 'stale' status */
74 MPTCP_MIB_SUBFLOWRECOVER, /* Sub 74 MPTCP_MIB_SUBFLOWRECOVER, /* Subflows returned to active status after being stale */
75 MPTCP_MIB_SNDWNDSHARED, /* Sub 75 MPTCP_MIB_SNDWNDSHARED, /* Subflow snd wnd is overridden by msk's one */
76 MPTCP_MIB_RCVWNDSHARED, /* Sub 76 MPTCP_MIB_RCVWNDSHARED, /* Subflow rcv wnd is overridden by msk's one */
77 MPTCP_MIB_RCVWNDCONFLICTUPDATE, /* sub 77 MPTCP_MIB_RCVWNDCONFLICTUPDATE, /* subflow rcv wnd is overridden by msk's one due to
78 * con 78 * conflict with another subflow while updating msk rcv wnd
79 */ 79 */
80 MPTCP_MIB_RCVWNDCONFLICT, /* Con 80 MPTCP_MIB_RCVWNDCONFLICT, /* Conflict with while updating msk rcv wnd */
81 MPTCP_MIB_CURRESTAB, /* Cur 81 MPTCP_MIB_CURRESTAB, /* Current established MPTCP connections */
82 MPTCP_MIB_BLACKHOLE, /* A b 82 MPTCP_MIB_BLACKHOLE, /* A blackhole has been detected */
83 __MPTCP_MIB_MAX 83 __MPTCP_MIB_MAX
84 }; 84 };
85 85
86 #define LINUX_MIB_MPTCP_MAX __MPTCP_MIB_MA 86 #define LINUX_MIB_MPTCP_MAX __MPTCP_MIB_MAX
87 struct mptcp_mib { 87 struct mptcp_mib {
88 unsigned long mibs[LINUX_MIB_MPTCP_MAX 88 unsigned long mibs[LINUX_MIB_MPTCP_MAX];
89 }; 89 };
90 90
91 static inline void MPTCP_ADD_STATS(struct net 91 static inline void MPTCP_ADD_STATS(struct net *net,
92 enum linux_ 92 enum linux_mptcp_mib_field field,
93 int val) 93 int val)
94 { 94 {
95 if (likely(net->mib.mptcp_statistics)) 95 if (likely(net->mib.mptcp_statistics))
96 SNMP_ADD_STATS(net->mib.mptcp_ 96 SNMP_ADD_STATS(net->mib.mptcp_statistics, field, val);
97 } 97 }
98 98
99 static inline void MPTCP_INC_STATS(struct net 99 static inline void MPTCP_INC_STATS(struct net *net,
100 enum linux_ 100 enum linux_mptcp_mib_field field)
101 { 101 {
102 if (likely(net->mib.mptcp_statistics)) 102 if (likely(net->mib.mptcp_statistics))
103 SNMP_INC_STATS(net->mib.mptcp_ 103 SNMP_INC_STATS(net->mib.mptcp_statistics, field);
104 } 104 }
105 105
106 static inline void __MPTCP_INC_STATS(struct ne 106 static inline void __MPTCP_INC_STATS(struct net *net,
107 enum linu 107 enum linux_mptcp_mib_field field)
108 { 108 {
109 if (likely(net->mib.mptcp_statistics)) 109 if (likely(net->mib.mptcp_statistics))
110 __SNMP_INC_STATS(net->mib.mptc 110 __SNMP_INC_STATS(net->mib.mptcp_statistics, field);
111 } 111 }
112 112
113 static inline void MPTCP_DEC_STATS(struct net 113 static inline void MPTCP_DEC_STATS(struct net *net,
114 enum linux_ 114 enum linux_mptcp_mib_field field)
115 { 115 {
116 if (likely(net->mib.mptcp_statistics)) 116 if (likely(net->mib.mptcp_statistics))
117 SNMP_DEC_STATS(net->mib.mptcp_ 117 SNMP_DEC_STATS(net->mib.mptcp_statistics, field);
118 } 118 }
119 119
120 bool mptcp_mib_alloc(struct net *net); 120 bool mptcp_mib_alloc(struct net *net);
121 121
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