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_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 */ 35 __MPTCP_MIB_MAX 36 }; 37 38 #define LINUX_MIB_MPTCP_MAX __MPTCP_MIB_MAX 39 struct mptcp_mib { 40 unsigned long mibs[LINUX_MIB_MPTCP_MAX]; 41 }; 42 43 static inline void MPTCP_INC_STATS(struct net *net, 44 enum linux_mptcp_mib_field field) 45 { 46 if (likely(net->mib.mptcp_statistics)) 47 SNMP_INC_STATS(net->mib.mptcp_statistics, field); 48 } 49 50 static inline void __MPTCP_INC_STATS(struct net *net, 51 enum linux_mptcp_mib_field field) 52 { 53 if (likely(net->mib.mptcp_statistics)) 54 __SNMP_INC_STATS(net->mib.mptcp_statistics, field); 55 } 56 57 bool mptcp_mib_alloc(struct net *net); 58