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authorGeliang Tang <geliang.tang@suse.com>2022-04-23 00:55:41 +0300
committerDavid S. Miller <davem@davemloft.net>2022-04-23 13:51:05 +0300
commit104125b82e5c92554c500b50a08287aa6a981753 (patch)
treedb55a0340245f50f97c2f0bbc40ad3e3a294a13d /net/mptcp
parentf8d4bcacff3b77f8778ae3ab97e0d175e861babf (diff)
downloadlinux-104125b82e5c92554c500b50a08287aa6a981753.tar.xz
mptcp: add mib for infinite map sending
This patch adds a new mib named MPTCP_MIB_INFINITEMAPTX, increase it when a infinite mapping has been sent out. Signed-off-by: Geliang Tang <geliang.tang@suse.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp')
-rw-r--r--net/mptcp/mib.c1
-rw-r--r--net/mptcp/mib.h1
-rw-r--r--net/mptcp/protocol.c1
3 files changed, 3 insertions, 0 deletions
diff --git a/net/mptcp/mib.c b/net/mptcp/mib.c
index e55d3dfbee0c..d93a8c9996fd 100644
--- a/net/mptcp/mib.c
+++ b/net/mptcp/mib.c
@@ -24,6 +24,7 @@ static const struct snmp_mib mptcp_snmp_list[] = {
SNMP_MIB_ITEM("MPJoinAckRx", MPTCP_MIB_JOINACKRX),
SNMP_MIB_ITEM("MPJoinAckHMacFailure", MPTCP_MIB_JOINACKMAC),
SNMP_MIB_ITEM("DSSNotMatching", MPTCP_MIB_DSSNOMATCH),
+ SNMP_MIB_ITEM("InfiniteMapTx", MPTCP_MIB_INFINITEMAPTX),
SNMP_MIB_ITEM("InfiniteMapRx", MPTCP_MIB_INFINITEMAPRX),
SNMP_MIB_ITEM("DSSNoMatchTCP", MPTCP_MIB_DSSTCPMISMATCH),
SNMP_MIB_ITEM("DataCsumErr", MPTCP_MIB_DATACSUMERR),
diff --git a/net/mptcp/mib.h b/net/mptcp/mib.h
index 00576179a619..529d07af9e14 100644
--- a/net/mptcp/mib.h
+++ b/net/mptcp/mib.h
@@ -17,6 +17,7 @@ enum linux_mptcp_mib_field {
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 */
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 161c07f49db6..4581c570ef68 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -1239,6 +1239,7 @@ static void mptcp_update_infinite_map(struct mptcp_sock *msk,
mpext->infinite_map = 1;
mpext->data_len = 0;
+ MPTCP_INC_STATS(sock_net(ssk), MPTCP_MIB_INFINITEMAPTX);
mptcp_subflow_ctx(ssk)->send_infinite_map = 0;
pr_fallback(msk);
__mptcp_do_fallback(msk);