xnu-792.22.5.tar.gz

[apple/xnu.git] / bsd / netat / ddp.h

diff --git a/bsd/netat/ddp.h b/bsd/netat/ddp.h
index d02c3e34f23abcb5a6df4ba407c19b3a490a10dd..0554ddf0e4950fc4a13285967c8b9c2eb787d404 100644 (file)
--- a/bsd/netat/ddp.h
+++ b/bsd/netat/ddp.h
@@ -1,16 +1,19 @@
 /*
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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.
+ * 
+ * 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
@@ -20,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  *
@@ -35,6 +38,8 @@
 #define _NETAT_DDP_H_
 #include <sys/appleapiopts.h>
 
+#ifdef __APPLE_API_OBSOLETE
+
 /* Header and data sizes */
 
 #define  DDP_HDR_SIZE                 5  /* DDP (short) header size */
@@ -63,9 +68,17 @@
 /* DDP extended header packet format */
 
 typedef struct {
-        unsigned   unused:2,
-                  hopcount:4,
-                  length:10;           /* Datagram length */
+#if BYTE_ORDER == BIG_ENDIAN
+               unsigned        unused:2,
+                           hopcount:4,         /* hop count/len high order  */
+                               length_H:2;     
+#endif
+#if BYTE_ORDER == LITTLE_ENDIAN
+               unsigned        length_H:2,
+                                       hopcount:4,
+                                       unused:2;
+#endif
+        u_char    length_L;                    /* len low order */
         ua_short   checksum;           /* Checksum */
         at_net     dst_net;            /* Destination network number */
         at_net     src_net;            /* Source network number */
@@ -73,14 +86,17 @@ typedef struct {
         at_node    src_node;           /* Source node ID */
         at_socket  dst_socket;                 /* Destination socket number */
         at_socket  src_socket;                 /* Source socket number */
-        u_char    type;                /* Protocol type */
+        u_char    type;                        /* Protocol type */
         char       data[DDP_DATA_SIZE];
 } at_ddp_t;
 
 
-#define        DDPLEN_ASSIGN(ddp, len)         ddp->length = len
-#define        DDPLEN_VALUE(ddp)               ddp->length
-
+#define        DDPLEN_ASSIGN(ddp, len)         \
+               ddp->length_H = 0x03 & (len >> 8); \
+               ddp->length_L = len & 0xff;
+               
+#define        DDPLEN_VALUE(ddp)                       \
+               (((u_short)ddp->length_H) << 8) + ddp->length_L
 
 /* DDP module statistics and configuration */
 
@@ -105,6 +121,7 @@ typedef struct at_ddp_stats {
        u_int   xmit_dropped_nobuf;
 } at_ddp_stats_t;
 
+
 /* DDP streams module ioctls */
 
 #define        AT_MID_DDP      203
@@ -127,8 +144,7 @@ typedef struct at_ddp_stats {
 #define DDP_IOC_SET_PROTO      ((AT_MID_DDP<<8) | 13)
 #endif
 
-#ifdef KERNEL
-#ifdef __APPLE_API_PRIVATE
+#ifdef KERNEL_PRIVATE
 
 #define DDP_MIN_NETWORK                0x0001
 #define        DDP_MAX_NETWORK         0xfffe
@@ -187,6 +203,6 @@ void ddp_bit_reverse(unsigned char *);
 /* in ddp_lap.c */
 int ddp_shutdown(int);
 
-#endif /* __APPLE_API_PRIVATE */
-#endif /* KERNEL */
+#endif /* KERNEL_PRIVATE */
+#endif /* __APPLE_API_OBSOLETE */
 #endif /* _NETAT_DDP_H_ */