X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/21362eb3e66fd2c787aee132bce100a44d71a99c..593a1d5fd87cdf5b46dd5fcb84467b432cea0f91:/bsd/netinet/ip.h?ds=sidebyside

diff --git a/bsd/netinet/ip.h b/bsd/netinet/ip.h
index 0bcda2140..c21698f61 100644
--- a/bsd/netinet/ip.h
+++ b/bsd/netinet/ip.h
@@ -64,7 +64,7 @@
 #ifndef _NETINET_IP_H_
 #define _NETINET_IP_H_
 #include <sys/appleapiopts.h>
-#include <sys/types.h>>		/* XXX temporary hack to get u_ types */
+#include <sys/types.h>		/* XXX temporary hack to get u_ types */
 #include <netinet/in.h>
 #include <netinet/in_systm.h>
 
@@ -121,10 +121,21 @@ struct ip {
 #define	IPTOS_THROUGHPUT	0x08
 #define	IPTOS_RELIABILITY	0x04
 #define	IPTOS_MINCOST		0x02
-/* ECN bits proposed by Sally Floyd */
-#define	IPTOS_CE		0x01	/* congestion experienced */
-#define	IPTOS_ECT		0x02	/* ECN-capable transport */
+#if 1
+/* ECN RFC3168 obsoletes RFC2481, and these will be deprecated soon. */
+#define	IPTOS_CE		0x01
+#define	IPTOS_ECT		0x02
+#endif
 
+/*
+ * ECN (Explicit Congestion Notification) codepoints in RFC3168
+ * mapped to the lower 2 bits of the TOS field.
+ */
+#define	IPTOS_ECN_NOTECT	0x00	/* not-ECT */
+#define	IPTOS_ECN_ECT1		0x01	/* ECN-capable transport (1) */
+#define	IPTOS_ECN_ECT0		0x02	/* ECN-capable transport (0) */
+#define	IPTOS_ECN_CE		0x03	/* congestion experienced */
+#define	IPTOS_ECN_MASK		0x03	/* ECN field mask */
 
 /*
  * Definitions for IP precedence (also in ip_tos) (hopefully unused)