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authorMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>2015-12-04 15:14:04 -0200
committerDavid S. Miller <davem@davemloft.net>2015-12-05 22:23:22 -0500
commit01ce63c90170283a9855d1db4fe81934dddce648 (patch)
treeeab8388f522d7f71c2e96b343370ac50f6ff64d8 /include
parentcb5e173ed7c03a0d4630ce68a95a186cce3cc872 (diff)
sctp: update the netstamp_needed counter when copying sockets
Dmitry Vyukov reported that SCTP was triggering a WARN on socket destroy related to disabling sock timestamp. When SCTP accepts an association or peel one off, it copies sock flags but forgot to call net_enable_timestamp() if a packet timestamping flag was copied, leading to extra calls to net_disable_timestamp() whenever such clones were closed. The fix is to call net_enable_timestamp() whenever we copy a sock with that flag on, like tcp does. Reported-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/sock.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 52d27ee924f4..b1d475b5db68 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -740,6 +740,8 @@ enum sock_flags {
SOCK_SELECT_ERR_QUEUE, /* Wake select on error queue */
};
+#define SK_FLAGS_TIMESTAMP ((1UL << SOCK_TIMESTAMP) | (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE))
+
static inline void sock_copy_flags(struct sock *nsk, struct sock *osk)
{
nsk->sk_flags = osk->sk_flags;