diff options
Diffstat (limited to '')
| -rw-r--r-- | net/mptcp/mib.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/net/mptcp/mib.h b/net/mptcp/mib.h new file mode 100644 index 0000000000..cae71d9472 --- /dev/null +++ b/net/mptcp/mib.h @@ -0,0 +1,98 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +enum linux_mptcp_mib_field { + MPTCP_MIB_NUM = 0, + MPTCP_MIB_MPCAPABLEPASSIVE, /* Received SYN with MP_CAPABLE */ + MPTCP_MIB_MPCAPABLEACTIVE, /* Sent SYN with MP_CAPABLE */ + MPTCP_MIB_MPCAPABLEACTIVEACK, /* Received SYN/ACK with MP_CAPABLE */ + MPTCP_MIB_MPCAPABLEPASSIVEACK, /* Received third ACK with MP_CAPABLE */ + MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK,/* Server-side fallback during 3-way handshake */ + MPTCP_MIB_MPCAPABLEACTIVEFALLBACK, /* Client-side fallback during 3-way handshake */ + MPTCP_MIB_TOKENFALLBACKINIT, /* Could not init/allocate token */ + MPTCP_MIB_RETRANSSEGS, /* Segments retransmitted at the MPTCP-level */ + MPTCP_MIB_JOINNOTOKEN, /* Received MP_JOIN but the token was not found */ + MPTCP_MIB_JOINSYNRX, /* Received a SYN + MP_JOIN */ + MPTCP_MIB_JOINSYNACKRX, /* Received a SYN/ACK + MP_JOIN */ + MPTCP_MIB_JOINSYNACKMAC, /* HMAC was wrong on SYN/ACK + MP_JOIN */ + MPTCP_MIB_JOINACKRX, /* Received an ACK + MP_JOIN */ + MPTCP_MIB_JOINACKMAC, /* HMAC was wrong on ACK + MP_JOIN */ + MPTCP_MIB_DSSNOMATCH, /* Received a new mapping that did not match the previous one */ + MPTCP_MIB_INFINITEMAPTX, /* Sent an infinite mapping */ + MPTCP_MIB_INFINITEMAPRX, /* Received an infinite mapping */ + MPTCP_MIB_DSSTCPMISMATCH, /* DSS-mapping did not map with TCP's sequence numbers */ + MPTCP_MIB_DATACSUMERR, /* The data checksum fail */ + MPTCP_MIB_OFOQUEUETAIL, /* Segments inserted into OoO queue tail */ + MPTCP_MIB_OFOQUEUE, /* Segments inserted into OoO queue */ + MPTCP_MIB_OFOMERGE, /* Segments merged in OoO queue */ + MPTCP_MIB_NODSSWINDOW, /* Segments not in MPTCP windows */ + MPTCP_MIB_DUPDATA, /* Segments discarded due to duplicate DSS */ + MPTCP_MIB_ADDADDR, /* Received ADD_ADDR with echo-flag=0 */ + MPTCP_MIB_ADDADDRTX, /* Sent ADD_ADDR with echo-flag=0 */ + MPTCP_MIB_ADDADDRTXDROP, /* ADD_ADDR with echo-flag=0 not send due to + * resource exhaustion + */ + MPTCP_MIB_ECHOADD, /* Received ADD_ADDR with echo-flag=1 */ + MPTCP_MIB_ECHOADDTX, /* Send ADD_ADDR with echo-flag=1 */ + MPTCP_MIB_ECHOADDTXDROP, /* ADD_ADDR with echo-flag=1 not send due + * to resource exhaustion + */ + MPTCP_MIB_PORTADD, /* Received ADD_ADDR with a port-number */ + MPTCP_MIB_ADDADDRDROP, /* Dropped incoming ADD_ADDR */ + MPTCP_MIB_JOINPORTSYNRX, /* Received a SYN MP_JOIN with a different port-number */ + MPTCP_MIB_JOINPORTSYNACKRX, /* Received a SYNACK MP_JOIN with a different port-number */ + MPTCP_MIB_JOINPORTACKRX, /* Received an ACK MP_JOIN with a different port-number */ + MPTCP_MIB_MISMATCHPORTSYNRX, /* Received a SYN MP_JOIN with a mismatched port-number */ + MPTCP_MIB_MISMATCHPORTACKRX, /* Received an ACK MP_JOIN with a mismatched port-number */ + MPTCP_MIB_RMADDR, /* Received RM_ADDR */ + MPTCP_MIB_RMADDRDROP, /* Dropped incoming RM_ADDR */ + MPTCP_MIB_RMADDRTX, /* Sent RM_ADDR */ + MPTCP_MIB_RMADDRTXDROP, /* RM_ADDR not sent due to resource exhaustion */ + MPTCP_MIB_RMSUBFLOW, /* Remove a subflow */ + MPTCP_MIB_MPPRIOTX, /* Transmit a MP_PRIO */ + MPTCP_MIB_MPPRIORX, /* Received a MP_PRIO */ + MPTCP_MIB_MPFAILTX, /* Transmit a MP_FAIL */ + MPTCP_MIB_MPFAILRX, /* Received a MP_FAIL */ + MPTCP_MIB_MPFASTCLOSETX, /* Transmit a MP_FASTCLOSE */ + MPTCP_MIB_MPFASTCLOSERX, /* Received a MP_FASTCLOSE */ + MPTCP_MIB_MPRSTTX, /* Transmit a MP_RST */ + MPTCP_MIB_MPRSTRX, /* Received a MP_RST */ + MPTCP_MIB_RCVPRUNED, /* Incoming packet dropped due to memory limit */ + MPTCP_MIB_SUBFLOWSTALE, /* Subflows entered 'stale' status */ + MPTCP_MIB_SUBFLOWRECOVER, /* Subflows returned to active status after being stale */ + MPTCP_MIB_SNDWNDSHARED, /* Subflow snd wnd is overridden by msk's one */ + MPTCP_MIB_RCVWNDSHARED, /* Subflow rcv wnd is overridden by msk's one */ + MPTCP_MIB_RCVWNDCONFLICTUPDATE, /* subflow rcv wnd is overridden by msk's one due to + * conflict with another subflow while updating msk rcv wnd + */ + MPTCP_MIB_RCVWNDCONFLICT, /* Conflict with while updating msk rcv wnd */ + __MPTCP_MIB_MAX +}; + +#define LINUX_MIB_MPTCP_MAX __MPTCP_MIB_MAX +struct mptcp_mib { + unsigned long mibs[LINUX_MIB_MPTCP_MAX]; +}; + +static inline void MPTCP_ADD_STATS(struct net *net, + enum linux_mptcp_mib_field field, + int val) +{ + if (likely(net->mib.mptcp_statistics)) + SNMP_ADD_STATS(net->mib.mptcp_statistics, field, val); +} + +static inline void MPTCP_INC_STATS(struct net *net, + enum linux_mptcp_mib_field field) +{ + if (likely(net->mib.mptcp_statistics)) + SNMP_INC_STATS(net->mib.mptcp_statistics, field); +} + +static inline void __MPTCP_INC_STATS(struct net *net, + enum linux_mptcp_mib_field field) +{ + if (likely(net->mib.mptcp_statistics)) + __SNMP_INC_STATS(net->mib.mptcp_statistics, field); +} + +bool mptcp_mib_alloc(struct net *net); |