1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */
2*4882a593Smuzhiyun
3*4882a593Smuzhiyun enum linux_mptcp_mib_field {
4*4882a593Smuzhiyun MPTCP_MIB_NUM = 0,
5*4882a593Smuzhiyun MPTCP_MIB_MPCAPABLEPASSIVE, /* Received SYN with MP_CAPABLE */
6*4882a593Smuzhiyun MPTCP_MIB_MPCAPABLEPASSIVEACK, /* Received third ACK with MP_CAPABLE */
7*4882a593Smuzhiyun MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK,/* Server-side fallback during 3-way handshake */
8*4882a593Smuzhiyun MPTCP_MIB_MPCAPABLEACTIVEFALLBACK, /* Client-side fallback during 3-way handshake */
9*4882a593Smuzhiyun MPTCP_MIB_RETRANSSEGS, /* Segments retransmitted at the MPTCP-level */
10*4882a593Smuzhiyun MPTCP_MIB_JOINNOTOKEN, /* Received MP_JOIN but the token was not found */
11*4882a593Smuzhiyun MPTCP_MIB_JOINSYNRX, /* Received a SYN + MP_JOIN */
12*4882a593Smuzhiyun MPTCP_MIB_JOINSYNACKRX, /* Received a SYN/ACK + MP_JOIN */
13*4882a593Smuzhiyun MPTCP_MIB_JOINSYNACKMAC, /* HMAC was wrong on SYN/ACK + MP_JOIN */
14*4882a593Smuzhiyun MPTCP_MIB_JOINACKRX, /* Received an ACK + MP_JOIN */
15*4882a593Smuzhiyun MPTCP_MIB_JOINACKMAC, /* HMAC was wrong on ACK + MP_JOIN */
16*4882a593Smuzhiyun MPTCP_MIB_DSSNOMATCH, /* Received a new mapping that did not match the previous one */
17*4882a593Smuzhiyun MPTCP_MIB_INFINITEMAPRX, /* Received an infinite mapping */
18*4882a593Smuzhiyun MPTCP_MIB_OFOQUEUETAIL, /* Segments inserted into OoO queue tail */
19*4882a593Smuzhiyun MPTCP_MIB_OFOQUEUE, /* Segments inserted into OoO queue */
20*4882a593Smuzhiyun MPTCP_MIB_OFOMERGE, /* Segments merged in OoO queue */
21*4882a593Smuzhiyun MPTCP_MIB_NODSSWINDOW, /* Segments not in MPTCP windows */
22*4882a593Smuzhiyun MPTCP_MIB_DUPDATA, /* Segments discarded due to duplicate DSS */
23*4882a593Smuzhiyun MPTCP_MIB_ADDADDR, /* Received ADD_ADDR with echo-flag=0 */
24*4882a593Smuzhiyun MPTCP_MIB_ECHOADD, /* Received ADD_ADDR with echo-flag=1 */
25*4882a593Smuzhiyun MPTCP_MIB_RMADDR, /* Received RM_ADDR */
26*4882a593Smuzhiyun MPTCP_MIB_RMSUBFLOW, /* Remove a subflow */
27*4882a593Smuzhiyun __MPTCP_MIB_MAX
28*4882a593Smuzhiyun };
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun #define LINUX_MIB_MPTCP_MAX __MPTCP_MIB_MAX
31*4882a593Smuzhiyun struct mptcp_mib {
32*4882a593Smuzhiyun unsigned long mibs[LINUX_MIB_MPTCP_MAX];
33*4882a593Smuzhiyun };
34*4882a593Smuzhiyun
MPTCP_INC_STATS(struct net * net,enum linux_mptcp_mib_field field)35*4882a593Smuzhiyun static inline void MPTCP_INC_STATS(struct net *net,
36*4882a593Smuzhiyun enum linux_mptcp_mib_field field)
37*4882a593Smuzhiyun {
38*4882a593Smuzhiyun if (likely(net->mib.mptcp_statistics))
39*4882a593Smuzhiyun SNMP_INC_STATS(net->mib.mptcp_statistics, field);
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun
__MPTCP_INC_STATS(struct net * net,enum linux_mptcp_mib_field field)42*4882a593Smuzhiyun static inline void __MPTCP_INC_STATS(struct net *net,
43*4882a593Smuzhiyun enum linux_mptcp_mib_field field)
44*4882a593Smuzhiyun {
45*4882a593Smuzhiyun if (likely(net->mib.mptcp_statistics))
46*4882a593Smuzhiyun __SNMP_INC_STATS(net->mib.mptcp_statistics, field);
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun bool mptcp_mib_alloc(struct net *net);
50