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_MPCAPABLEACTIVE, /* Sent SYN with MP_CAPABLE */ 7 MPTCP_MIB_MPCAPABLEACTIVEACK, /* Received SYN/ACK with MP_CAPABLE */ 8 MPTCP_MIB_MPCAPABLEPASSIVEACK, /* Received third ACK with MP_CAPABLE */ 9 MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK,/* Server-side fallback during 3-way handshake */ 10 MPTCP_MIB_MPCAPABLEACTIVEFALLBACK, /* Client-side fallback during 3-way handshake */ 11 MPTCP_MIB_TOKENFALLBACKINIT, /* Could not init/allocate token */ 12 MPTCP_MIB_RETRANSSEGS, /* Segments retransmitted at the MPTCP-level */ 13 MPTCP_MIB_JOINNOTOKEN, /* Received MP_JOIN but the token was not found */ 14 MPTCP_MIB_JOINSYNRX, /* Received a SYN + MP_JOIN */ 15 MPTCP_MIB_JOINSYNACKRX, /* Received a SYN/ACK + MP_JOIN */ 16 MPTCP_MIB_JOINSYNACKMAC, /* HMAC was wrong on SYN/ACK + MP_JOIN */ 17 MPTCP_MIB_JOINACKRX, /* Received an ACK + MP_JOIN */ 18 MPTCP_MIB_JOINACKMAC, /* HMAC was wrong on ACK + MP_JOIN */ 19 MPTCP_MIB_DSSNOMATCH, /* Received a new mapping that did not match the previous one */ 20 MPTCP_MIB_INFINITEMAPRX, /* Received an infinite mapping */ 21 MPTCP_MIB_OFOQUEUETAIL, /* Segments inserted into OoO queue tail */ 22 MPTCP_MIB_OFOQUEUE, /* Segments inserted into OoO queue */ 23 MPTCP_MIB_OFOMERGE, /* Segments merged in OoO queue */ 24 MPTCP_MIB_NODSSWINDOW, /* Segments not in MPTCP windows */ 25 MPTCP_MIB_DUPDATA, /* Segments discarded due to duplicate DSS */ 26 MPTCP_MIB_ADDADDR, /* Received ADD_ADDR with echo-flag=0 */ 27 MPTCP_MIB_ECHOADD, /* Received ADD_ADDR with echo-flag=1 */ 28 MPTCP_MIB_PORTADD, /* Received ADD_ADDR with a port-number */ 29 MPTCP_MIB_JOINPORTSYNRX, /* Received a SYN MP_JOIN with a different port-number */ 30 MPTCP_MIB_JOINPORTSYNACKRX, /* Received a SYNACK MP_JOIN with a different port-number */ 31 MPTCP_MIB_JOINPORTACKRX, /* Received an ACK MP_JOIN with a different port-number */ 32 MPTCP_MIB_MISMATCHPORTSYNRX, /* Received a SYN MP_JOIN with a mismatched port-number */ 33 MPTCP_MIB_MISMATCHPORTACKRX, /* Received an ACK MP_JOIN with a mismatched port-number */ 34 MPTCP_MIB_RMADDR, /* Received RM_ADDR */ 35 MPTCP_MIB_RMSUBFLOW, /* Remove a subflow */ 36 MPTCP_MIB_MPPRIOTX, /* Transmit a MP_PRIO */ 37 MPTCP_MIB_MPPRIORX, /* Received a MP_PRIO */ 38 __MPTCP_MIB_MAX 39 }; 40 41 #define LINUX_MIB_MPTCP_MAX __MPTCP_MIB_MAX 42 struct mptcp_mib { 43 unsigned long mibs[LINUX_MIB_MPTCP_MAX]; 44 }; 45 46 static inline void MPTCP_INC_STATS(struct net *net, 47 enum linux_mptcp_mib_field field) 48 { 49 if (likely(net->mib.mptcp_statistics)) 50 SNMP_INC_STATS(net->mib.mptcp_statistics, field); 51 } 52 53 static inline void __MPTCP_INC_STATS(struct net *net, 54 enum linux_mptcp_mib_field field) 55 { 56 if (likely(net->mib.mptcp_statistics)) 57 __SNMP_INC_STATS(net->mib.mptcp_statistics, field); 58 } 59 60 bool mptcp_mib_alloc(struct net *net); 61