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[SCTP]: Do not increase rwnd when reading partial notification. 

When a user reads a partial notification message, do not
update rwnd since notifications must not be counted towards
receive window.

Tested-by: Oliver Roll <mail@oliroll.de>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
This commit is contained in:
Vlad Yasevich 2008-01-11 10:12:56 -05:00
parent 60c778b259
commit 0eca8fee0c
1 changed files with 2 additions and 1 deletions
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3
net/sctp/socket.c
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@ -1911,7 +1911,8 @@ SCTP_STATIC int sctp_recvmsg(struct kiocb *iocb, struct sock *sk,
* rwnd by that amount. If all the data in the skb is read,
* rwnd is updated when the event is freed.
*/
sctp_assoc_rwnd_increase(event->asoc, copied);
if (!sctp_ulpevent_is_notification(event))
sctp_assoc_rwnd_increase(event->asoc, copied);
goto out;
} else if ((event->msg_flags & MSG_NOTIFICATION) ||
(event->msg_flags & MSG_EOR))