blob: f0da4f060fe1a99da57ff14159efa727c7ba2fed [file] [log] [blame]
Florian Westphalfc518952020-03-27 14:48:50 -07001/* SPDX-License-Identifier: GPL-2.0-or-later */
2
3enum linux_mptcp_mib_field {
4 MPTCP_MIB_NUM = 0,
5 MPTCP_MIB_MPCAPABLEPASSIVE, /* Received SYN with MP_CAPABLE */
Paolo Abeni5695eb82021-04-01 16:19:42 -07006 MPTCP_MIB_MPCAPABLEACTIVE, /* Sent SYN with MP_CAPABLE */
7 MPTCP_MIB_MPCAPABLEACTIVEACK, /* Received SYN/ACK with MP_CAPABLE */
Florian Westphalfc518952020-03-27 14:48:50 -07008 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 */
Paolo Abenia16195e2021-04-01 16:19:41 -070011 MPTCP_MIB_TOKENFALLBACKINIT, /* Could not init/allocate token */
Florian Westphalfc518952020-03-27 14:48:50 -070012 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 */
Paolo Abeni06242e42020-09-14 10:01:14 +020021 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 */
Geliang Tanga877de062020-09-24 08:29:51 +080026 MPTCP_MIB_ADDADDR, /* Received ADD_ADDR with echo-flag=0 */
27 MPTCP_MIB_ECHOADD, /* Received ADD_ADDR with echo-flag=1 */
Geliang Tang2fbdd9e2021-02-01 15:09:19 -080028 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 */
Geliang Tang7a7e52e2020-09-24 08:29:56 +080034 MPTCP_MIB_RMADDR, /* Received RM_ADDR */
35 MPTCP_MIB_RMSUBFLOW, /* Remove a subflow */
Geliang Tang0be2ac22021-01-08 16:48:01 -080036 MPTCP_MIB_MPPRIOTX, /* Transmit a MP_PRIO */
37 MPTCP_MIB_MPPRIORX, /* Received a MP_PRIO */
Florian Westphalfc518952020-03-27 14:48:50 -070038 __MPTCP_MIB_MAX
39};
40
41#define LINUX_MIB_MPTCP_MAX __MPTCP_MIB_MAX
42struct mptcp_mib {
43 unsigned long mibs[LINUX_MIB_MPTCP_MAX];
44};
45
46static 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
53static 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
60bool mptcp_mib_alloc(struct net *net);