tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* 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 */
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
22struct mptcp_mib {
23 unsigned long mibs[LINUX_MIB_MPTCP_MAX];
24};
25
26static 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
33static 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
40bool mptcp_mib_alloc(struct net *net);