diff options
Diffstat (limited to 'net/mptcp/protocol.c')
-rw-r--r-- | net/mptcp/protocol.c | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 8d2777092390..1833bc1f4a43 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -21,6 +21,7 @@ #endif #include <net/mptcp.h> #include "protocol.h" +#include "mib.h" #define MPTCP_SAME_STATE TCP_MAX_STATES @@ -1032,6 +1033,7 @@ static void mptcp_worker(struct work_struct *work) if (ret < 0) break; + MPTCP_INC_STATS(sock_net(sk), MPTCP_MIB_RETRANSSEGS); copied += ret; dfrag->data_len -= ret; dfrag->offset += ret; @@ -1081,17 +1083,22 @@ static int __mptcp_init_sock(struct sock *sk) static int mptcp_init_sock(struct sock *sk) { - int ret = __mptcp_init_sock(sk); + struct net *net = sock_net(sk); + int ret; + if (!mptcp_is_enabled(net)) + return -ENOPROTOOPT; + + if (unlikely(!net->mib.mptcp_statistics) && !mptcp_mib_alloc(net)) + return -ENOMEM; + + ret = __mptcp_init_sock(sk); if (ret) return ret; sk_sockets_allocated_inc(sk); sk->sk_sndbuf = sock_net(sk)->ipv4.sysctl_tcp_wmem[2]; - if (!mptcp_is_enabled(sock_net(sk))) - return -ENOPROTOOPT; - return 0; } @@ -1327,7 +1334,12 @@ static struct sock *mptcp_accept(struct sock *sk, int flags, int *err, list_add(&subflow->node, &msk->conn_list); bh_unlock_sock(new_mptcp_sock); + + __MPTCP_INC_STATS(sock_net(sk), MPTCP_MIB_MPCAPABLEPASSIVEACK); local_bh_enable(); + } else { + MPTCP_INC_STATS(sock_net(sk), + MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK); } return newsk; @@ -1448,13 +1460,15 @@ void mptcp_finish_connect(struct sock *ssk) u64 ack_seq; subflow = mptcp_subflow_ctx(ssk); - - if (!subflow->mp_capable) - return; - sk = subflow->conn; msk = mptcp_sk(sk); + if (!subflow->mp_capable) { + MPTCP_INC_STATS(sock_net(sk), + MPTCP_MIB_MPCAPABLEACTIVEFALLBACK); + return; + } + pr_debug("msk=%p, token=%u", sk, subflow->token); mptcp_crypto_key_sha(subflow->remote_key, NULL, &ack_seq); |