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-rw-r--r--net/dccp/input.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/dccp/input.c b/net/dccp/input.c
index 19d7e1dbd87..3560a2a875a 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -19,6 +19,9 @@
#include "ccid.h"
#include "dccp.h"
+/* rate-limit for syncs in reply to sequence-invalid packets; RFC 4340, 7.5.4 */
+int sysctl_dccp_sync_ratelimit __read_mostly = HZ / 8;
+
static void dccp_fin(struct sock *sk, struct sk_buff *skb)
{
sk->sk_shutdown |= RCV_SHUTDOWN;