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_MAX 19 }; 20 21 #define LINUX_MIB_MPTCP_MAX __MPTCP_MIB_MAX 22 struct mptcp_mib { 23 unsigned long mibs[LINUX_MIB_MPTCP_MAX]; 24 }; 25 26 static inline void MPTCP_INC_STATS(struct net *net, 27 enum linux_mptcp_mib_field field) 28 { 29 if (likely(net->mib.mptcp_statistics)) 30 SNMP_INC_STATS(net->mib.mptcp_statistics, field); 31 } 32 33 static inline void __MPTCP_INC_STATS(struct net *net, 34 enum linux_mptcp_mib_field field) 35 { 36 if (likely(net->mib.mptcp_statistics)) 37 __SNMP_INC_STATS(net->mib.mptcp_statistics, field); 38 } 39 40 bool mptcp_mib_alloc(struct net *net); 41