1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 enum linux_mptcp_mib_field {
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_PORTADD, /* Received ADD_ADDR with a port-number */
26 MPTCP_MIB_JOINPORTSYNRX, /* Received a SYN MP_JOIN with a different port-number */
27 MPTCP_MIB_JOINPORTSYNACKRX, /* Received a SYNACK MP_JOIN with a different port-number */
28 MPTCP_MIB_JOINPORTACKRX, /* Received an ACK MP_JOIN with a different port-number */
29 MPTCP_MIB_MISMATCHPORTSYNRX, /* Received a SYN MP_JOIN with a mismatched port-number */
30 MPTCP_MIB_MISMATCHPORTACKRX, /* Received an ACK MP_JOIN with a mismatched port-number */
31 MPTCP_MIB_RMADDR, /* Received RM_ADDR */
32 MPTCP_MIB_RMSUBFLOW, /* Remove a subflow */
33 MPTCP_MIB_MPPRIOTX, /* Transmit a MP_PRIO */
34 MPTCP_MIB_MPPRIORX, /* Received a MP_PRIO */
38 #define LINUX_MIB_MPTCP_MAX __MPTCP_MIB_MAX
40 unsigned long mibs[LINUX_MIB_MPTCP_MAX];
43 static inline void MPTCP_INC_STATS(struct net *net,
44 enum linux_mptcp_mib_field field)
46 if (likely(net->mib.mptcp_statistics))
47 SNMP_INC_STATS(net->mib.mptcp_statistics, field);
50 static inline void __MPTCP_INC_STATS(struct net *net,
51 enum linux_mptcp_mib_field field)
53 if (likely(net->mib.mptcp_statistics))
54 __SNMP_INC_STATS(net->mib.mptcp_statistics, field);
57 bool mptcp_mib_alloc(struct net *net);