diff options
| -rw-r--r-- | net/mptcp/protocol.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 320f306ea85c..612f6d49f1bb 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1601,6 +1601,37 @@ static void mptcp_destroy(struct sock *sk) sk_sockets_allocated_dec(sk); } +static int mptcp_setsockopt_sol_socket(struct mptcp_sock *msk, int optname, + char __user *optval, unsigned int optlen) +{ + struct sock *sk = (struct sock *)msk; + struct socket *ssock; + int ret; + + switch (optname) { + case SO_REUSEPORT: + case SO_REUSEADDR: + lock_sock(sk); + ssock = __mptcp_nmpc_socket(msk); + if (!ssock) { + release_sock(sk); + return -EINVAL; + } + + ret = sock_setsockopt(ssock, SOL_SOCKET, optname, optval, optlen); + if (ret == 0) { + if (optname == SO_REUSEPORT) + sk->sk_reuseport = ssock->sk->sk_reuseport; + else if (optname == SO_REUSEADDR) + sk->sk_reuse = ssock->sk->sk_reuse; + } + release_sock(sk); + return ret; + } + + return sock_setsockopt(sk->sk_socket, SOL_SOCKET, optname, optval, optlen); +} + static int mptcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen) { @@ -1610,7 +1641,7 @@ static int mptcp_setsockopt(struct sock *sk, int level, int optname, pr_debug("msk=%p", msk); if (level == SOL_SOCKET) - return sock_setsockopt(sk->sk_socket, level, optname, optval, optlen); + return mptcp_setsockopt_sol_socket(msk, optname, optval, optlen); /* @@ the meaning of setsockopt() when the socket is connected and * there are multiple subflows is not yet defined. It is up to the |