X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/6601e61aa18bf4f09af135ff61fc7f4771d23b06..3903760236c30e3b5ace7a4eefac3a269d68957c:/bsd/netinet/ip.h

diff --git a/bsd/netinet/ip.h b/bsd/netinet/ip.h
index 7b75ffb2c..0574f5c23 100644
--- a/bsd/netinet/ip.h
+++ b/bsd/netinet/ip.h
@@ -1,23 +1,29 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * Copyright (c) 1982, 1986, 1993
@@ -58,7 +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>
 
@@ -115,10 +121,23 @@ 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
+
+#define	IPTOS_DSCP_SHIFT	2
 
+/*
+ * 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)
@@ -132,6 +151,17 @@ struct ip {
 #define	IPTOS_PREC_PRIORITY		0x20
 #define	IPTOS_PREC_ROUTINE		0x00
 
+#ifdef PRIVATE
+/*
+ * Definitions of traffic class for use within wireless LAN. 
+ * Mainly used by AFP for backup. Not recommended for general use.
+ */
+#define IP_TCLASS_BE			0x00	/* standard, best effort */
+#define IP_TCLASS_BK			0x20	/* Background, low priority */
+#define IP_TCLASS_VI			0x80	/* Interactive */
+#define IP_TCLASS_VO			0xc0	/* Signalling */
+
+#endif
 /*
  * Definitions for options.
  */
@@ -206,7 +236,7 @@ struct	ip_timestamp {
  */
 #define	MAXTTL		255		/* maximum time to live (seconds) */
 #define	IPDEFTTL	64		/* default ttl, from RFC 1340 */
-#define	IPFRAGTTL	60		/* time to live for frags, slowhz */
+#define	IPFRAGTTL	30		/* time to live for frags (seconds) */
 #define	IPTTLDEC	1		/* subtracted when forwarding */
 
 #define	IP_MSS		576		/* default maximum segment size */