From: Paolo Abeni Date: Thu, 1 Apr 2021 23:19:42 +0000 (-0700) Subject: mptcp: add active MPC mibs X-Git-Tag: v5.15~1236^2~253^2~5 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5695eb8891f9eb5317ca0c3af7a773468524022d;p=platform%2Fkernel%2Flinux-starfive.git mptcp: add active MPC mibs We are not currently tracking the active MPTCP connection attempts. Let's add the related counters. Signed-off-by: Paolo Abeni Signed-off-by: Mat Martineau Signed-off-by: David S. Miller --- diff --git a/net/mptcp/mib.c b/net/mptcp/mib.c index b0429ac..eb2dc6d 100644 --- a/net/mptcp/mib.c +++ b/net/mptcp/mib.c @@ -10,6 +10,8 @@ static const struct snmp_mib mptcp_snmp_list[] = { SNMP_MIB_ITEM("MPCapableSYNRX", MPTCP_MIB_MPCAPABLEPASSIVE), + SNMP_MIB_ITEM("MPCapableSYNTX", MPTCP_MIB_MPCAPABLEACTIVE), + SNMP_MIB_ITEM("MPCapableSYNACKRX", MPTCP_MIB_MPCAPABLEACTIVEACK), SNMP_MIB_ITEM("MPCapableACKRX", MPTCP_MIB_MPCAPABLEPASSIVEACK), SNMP_MIB_ITEM("MPCapableFallbackACK", MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK), SNMP_MIB_ITEM("MPCapableFallbackSYNACK", MPTCP_MIB_MPCAPABLEACTIVEFALLBACK), diff --git a/net/mptcp/mib.h b/net/mptcp/mib.h index 50e1668..f0da4f0 100644 --- a/net/mptcp/mib.h +++ b/net/mptcp/mib.h @@ -3,6 +3,8 @@ 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 */ diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 3b50e8c..0c916d4 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -3228,6 +3228,8 @@ static int mptcp_stream_connect(struct socket *sock, struct sockaddr *uaddr, MPTCP_INC_STATS(sock_net(ssock->sk), MPTCP_MIB_TOKENFALLBACKINIT); mptcp_subflow_early_fallback(msk, subflow); } + if (likely(!__mptcp_check_fallback(msk))) + MPTCP_INC_STATS(sock_net(sock->sk), MPTCP_MIB_MPCAPABLEACTIVE); do_connect: err = ssock->ops->connect(ssock, uaddr, addr_len, flags); diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index b96e8dc..7a5f50d 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -395,6 +395,7 @@ static void subflow_finish_connect(struct sock *sk, const struct sk_buff *skb) subflow->remote_key = mp_opt.sndr_key; pr_debug("subflow=%p, remote_key=%llu", subflow, subflow->remote_key); + MPTCP_INC_STATS(sock_net(sk), MPTCP_MIB_MPCAPABLEACTIVEACK); mptcp_finish_connect(sk); } else if (subflow->request_join) { u8 hmac[SHA256_DIGEST_SIZE];