xnu-2422.1.72.tar.gz

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

diff --git a/bsd/net/ndrv.h b/bsd/net/ndrv.h
index d06b949a06123509fcae1ff0c91f0c416bf4c08e..a201a2fd70908d55b72ed58b9a94c9201deec2f6 100644 (file)
--- a/bsd/net/ndrv.h
+++ b/bsd/net/ndrv.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2008 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -107,19 +107,39 @@ 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 */
 #define NDRV_SETDMXSPEC                0x04                    /* Set the protocol spec */
@@ -149,4 +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 */