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-rw-r--r--sys/netinet/tcp_var.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/netinet/tcp_var.h b/sys/netinet/tcp_var.h
index a339f52c2ffa..f0a034bd1ea7 100644
--- a/sys/netinet/tcp_var.h
+++ b/sys/netinet/tcp_var.h
@@ -846,6 +846,7 @@ tcp_packets_this_ack(struct tcpcb *tp, tcp_seq ack)
#define TF2_MBUF_QUEUE_READY 0x00020000 /* Inputs can be queued */
#define TF2_DONT_SACK_QUEUE 0x00040000 /* Don't wake on sack */
#define TF2_CANNOT_DO_ECN 0x00080000 /* The stack does not do ECN */
+#define TF2_PROC_SACK_PROHIBIT 0x00100000 /* Due to small MSS size do not process sack's */
/*
* Structure to hold TCP options that are only used during segment