xnu-4903.241.1.tar.gz

[apple/xnu.git] / bsd / net / ndrv.h

diff --git a/bsd/net/ndrv.h b/bsd/net/ndrv.h
index 0a0cd4fa3626bc6e9b5c2f95b5da7d24387ecece..a201a2fd70908d55b72ed58b9a94c9201deec2f6 100644 (file)
--- a/bsd/net/ndrv.h
+++ b/bsd/net/ndrv.h
@@ -1,31 +1,29 @@
 /*
- * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
+ * Copyright (c) 2008 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * @APPLE_LICENSE_OSREFERENCE_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. 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 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.
- *
- * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
- * Please see the License for the specific language governing rights and 
+ * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
  * limitations under the License.
- *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /* Copyright (c) 1997, 1998 Apple Computer, Inc. All Rights Reserved */
 /*
@@ -109,18 +107,38 @@ struct ndrv_demux_desc
  *   Used to "bind" an NDRV socket so that packets that match
  *   given protocol demux descriptions can be received:
  * Field:
- *             version                 :       must be NDRV_PROTOCOL_DESC_VERS
- *             protocol_family :       unique identifier for this protocol
- *             demux_count             :       number of demux_list descriptors in demux_list
- *             demux_list              :       pointer to array of demux descriptors
+ *     version         :       must be NDRV_PROTOCOL_DESC_VERS
+ *     protocol_family :       unique identifier for this protocol
+ *     demux_count     :       number of demux_list descriptors in demux_list; maximum of 10
+ *     demux_list      :       pointer to array of demux descriptors
  */
 struct ndrv_protocol_desc
 {
     u_int32_t                          version;
     u_int32_t                          protocol_family;
     u_int32_t                          demux_count;
-    struct ndrv_demux_desc*    demux_list;
+    struct ndrv_demux_desc             *demux_list;
+};
+
+#ifdef KERNEL_PRIVATE
+/* LP64 version of ndrv_protocol_desc.  all pointers 
+ * grow when we're dealing with a 64-bit process.
+ * WARNING - keep in sync with ndrv_protocol_desc
+ */
+struct ndrv_protocol_desc64 {
+    u_int32_t                          version;
+    u_int32_t                          protocol_family;
+    u_int32_t                          demux_count;
+    user64_addr_t                      demux_list __attribute__((aligned(8)));
+};
+
+struct ndrv_protocol_desc32 {
+    u_int32_t                          version;
+    u_int32_t                          protocol_family;
+    u_int32_t                          demux_count;
+    user32_addr_t                      demux_list;
 };
+#endif /* KERNEL_PRIVATE */
 
 #define SOL_NDRVPROTO          NDRVPROTO_NDRV  /* Use this socket level */
 #define NDRV_DELDMXSPEC                0x02                    /* Delete the registered protocol */
@@ -151,4 +169,12 @@ struct ndrv_protocol_desc
  * you a second or two.
  */
 
+/* Max number of descriptions allowed by default */
+#define NDRV_DMUX_MAX_DESCR    1024
+ 
+/*
+ * sysctl MIB tags at the kern.ipc.nrdv level
+ */
+#define NRDV_MULTICAST_ADDRS_PER_SOCK 1        /* to toggle NDRV_DMUX_MAX_DESCR value */
+
 #endif /* _NET_NDRV_H */