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| author | Xin Long <lucien.xin@gmail.com> | 2016-07-30 14:14:41 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-07-30 22:06:22 -0700 |
| commit | e08786942e0ea3a3cb268e6c62523d40f1c5eeb8 (patch) | |
| tree | e738a612df3e51d18ca95d387a1d778483c20f44 | |
| parent | a0fc6843f948345fa85c218fec662f571804d2f9 (diff) | |
| download | linux-e08786942e0ea3a3cb268e6c62523d40f1c5eeb8.tar.bz2 | |
sctp: allow receiving msg when TCP-style sk is in CLOSED state
Commit 141ddefce7c8 ("sctp: change sk state to CLOSED instead of
CLOSING in sctp_sock_migrate") changed sk state to CLOSED if the
assoc is closed when sctp_accept clones a new sk.
If there is still data in sk receive queue, users will not be able
to read it any more, as sctp_recvmsg returns directly if sk state
is CLOSED.
This patch is to add CLOSED state check in sctp_recvmsg to allow
reading data from TCP-style sk with CLOSED state as what TCP does.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/sctp/socket.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 8812e1bf6c1c..9fc417a8b476 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -2079,7 +2079,7 @@ static int sctp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, lock_sock(sk); if (sctp_style(sk, TCP) && !sctp_sstate(sk, ESTABLISHED) && - !sctp_sstate(sk, CLOSING)) { + !sctp_sstate(sk, CLOSING) && !sctp_sstate(sk, CLOSED)) { err = -ENOTCONN; goto out; } |