1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2
3 enum linux_mptcp_mib_field {
4 MPTCP_MIB_NUM = 0,
5 MPTCP_MIB_MPCAPABLEPASSIVE, /* Received SYN with MP_CAPABLE */
6 MPTCP_MIB_MPCAPABLEPASSIVEACK, /* Received third ACK with MP_CAPABLE */
7 MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK,/* Server-side fallback during 3-way handshake */
8 MPTCP_MIB_MPCAPABLEACTIVEFALLBACK, /* Client-side fallback during 3-way handshake */
9 MPTCP_MIB_RETRANSSEGS, /* Segments retransmitted at the MPTCP-level */
10 MPTCP_MIB_JOINNOTOKEN, /* Received MP_JOIN but the token was not found */
11 MPTCP_MIB_JOINSYNRX, /* Received a SYN + MP_JOIN */
12 MPTCP_MIB_JOINSYNACKRX, /* Received a SYN/ACK + MP_JOIN */
13 MPTCP_MIB_JOINSYNACKMAC, /* HMAC was wrong on SYN/ACK + MP_JOIN */
14 MPTCP_MIB_JOINACKRX, /* Received an ACK + MP_JOIN */
15 MPTCP_MIB_JOINACKMAC, /* HMAC was wrong on ACK + MP_JOIN */
16 MPTCP_MIB_DSSNOMATCH, /* Received a new mapping that did not match the previous one */
17 MPTCP_MIB_INFINITEMAPRX, /* Received an infinite mapping */
18 MPTCP_MIB_OFOQUEUETAIL, /* Segments inserted into OoO queue tail */
19 MPTCP_MIB_OFOQUEUE, /* Segments inserted into OoO queue */
20 MPTCP_MIB_OFOMERGE, /* Segments merged in OoO queue */
21 MPTCP_MIB_NODSSWINDOW, /* Segments not in MPTCP windows */
22 MPTCP_MIB_DUPDATA, /* Segments discarded due to duplicate DSS */
23 MPTCP_MIB_ADDADDR, /* Received ADD_ADDR with echo-flag=0 */
24 MPTCP_MIB_ECHOADD, /* Received ADD_ADDR with echo-flag=1 */
25 MPTCP_MIB_RMADDR, /* Received RM_ADDR */
26 MPTCP_MIB_RMSUBFLOW, /* Remove a subflow */
27 __MPTCP_MIB_MAX
28 };
29
30 #define LINUX_MIB_MPTCP_MAX __MPTCP_MIB_MAX
31 struct mptcp_mib {
32 unsigned long mibs[LINUX_MIB_MPTCP_MAX];
33 };
34
MPTCP_INC_STATS(struct net * net,enum linux_mptcp_mib_field field)35 static inline void MPTCP_INC_STATS(struct net *net,
36 enum linux_mptcp_mib_field field)
37 {
38 if (likely(net->mib.mptcp_statistics))
39 SNMP_INC_STATS(net->mib.mptcp_statistics, field);
40 }
41
__MPTCP_INC_STATS(struct net * net,enum linux_mptcp_mib_field field)42 static inline void __MPTCP_INC_STATS(struct net *net,
43 enum linux_mptcp_mib_field field)
44 {
45 if (likely(net->mib.mptcp_statistics))
46 __SNMP_INC_STATS(net->mib.mptcp_statistics, field);
47 }
48
49 bool mptcp_mib_alloc(struct net *net);
50
