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authorThomas Graf <tgraf@infradead.org>2011-07-08 04:37:46 +0000
committerDavid S. Miller <davem@davemloft.net>2011-07-08 09:53:08 -0700
commitcd4fcc704f30f2064ab30b5300d44d431e46db50 (patch)
treecc08106433d2353adb5f7b52b7bfe6e4f9ebceb8 /include/net/sctp
parent3f97fae9482dac1dbdd870a25c89033d3a0b35dc (diff)
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sctp: ABORT if receive, reassmbly, or reodering queue is not empty while closing socket
Trigger user ABORT if application closes a socket which has data queued on the socket receive queue or chunks waiting on the reassembly or ordering queue as this would imply data being lost which defeats the point of a graceful shutdown. This behavior is already practiced in TCP. We do not check the input queue because that would mean to parse all chunks on it to look for unacknowledged data which seems too much of an effort. Control chunks or duplicated chunks may also be in the input queue and should not be stopping a graceful shutdown. Signed-off-by: Thomas Graf <tgraf@infradead.org> Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sctp')
-rw-r--r--include/net/sctp/ulpevent.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/sctp/ulpevent.h b/include/net/sctp/ulpevent.h
index 99b027b..ca4693b 100644
--- a/include/net/sctp/ulpevent.h
+++ b/include/net/sctp/ulpevent.h
@@ -80,7 +80,7 @@ static inline struct sctp_ulpevent *sctp_skb2event(struct sk_buff *skb)
void sctp_ulpevent_free(struct sctp_ulpevent *);
int sctp_ulpevent_is_notification(const struct sctp_ulpevent *);
-void sctp_queue_purge_ulpevents(struct sk_buff_head *list);
+unsigned int sctp_queue_purge_ulpevents(struct sk_buff_head *list);
struct sctp_ulpevent *sctp_ulpevent_make_assoc_change(
const struct sctp_association *asoc,
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