xnu-2782.30.5.tar.gz

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

diff --git a/bsd/net/if_var.h b/bsd/net/if_var.h
index 7b82a0fbec2c3ce7c486b1c0296c863bb367da39..efa21e8b88fbe5c84ec44d87a8ffb8360f46ad35 100644 (file)
--- a/bsd/net/if_var.h
+++ b/bsd/net/if_var.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2014 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
@@ -683,6 +683,7 @@ struct ifnet {
                u_int32_t       type;           /* delegated i/f type */
                u_int32_t       family;         /* delegated i/f family */
                u_int32_t       subfamily;      /* delegated i/f sub-family */
+               uint32_t        expensive:1;    /* delegated i/f expensive? */
        } if_delegated;
 
        u_int64_t               if_data_threshold;
@@ -989,6 +990,42 @@ struct ifmultiaddr {
        ((_ifp)->if_subfamily == IFNET_SUBFAMILY_WIFI ||                \
        (_ifp)->if_delegated.subfamily == IFNET_SUBFAMILY_WIFI)
 
+/*
+ * Indicate whether or not the immediate interface, or the interface delegated
+ * by it, is a Wired interface (several families).  Delegated interface
+ * family is set/cleared along with the delegated ifp; we cache the family
+ * for performance to avoid dereferencing delegated ifp each time.
+ *
+ * Note that this is meant to be used only for accounting and policy purposes;
+ * certain places need to explicitly know the immediate interface type, and
+ * this macro should not be used there.
+ */
+#define        IFNET_IS_WIRED(_ifp)                                            \
+       ((_ifp)->if_family == IFNET_FAMILY_ETHERNET ||                  \
+       (_ifp)->if_delegated.family == IFNET_FAMILY_ETHERNET ||         \
+       (_ifp)->if_family == IFNET_FAMILY_FIREWIRE ||                   \
+       (_ifp)->if_delegated.family == IFNET_FAMILY_FIREWIRE)
+
+/*
+ * Indicate whether or not the immediate interface, or the interface delegated
+ * by it, is marked as expensive.  The delegated interface is set/cleared 
+ * along with the delegated ifp; we cache the flag for performance to avoid 
+ * dereferencing delegated ifp each time.
+ *
+ * Note that this is meant to be used only for policy purposes.
+ */
+#define        IFNET_IS_EXPENSIVE(_ifp)                                        \
+       ((_ifp)->if_eflags & IFEF_EXPENSIVE ||                          \
+       (_ifp)->if_delegated.expensive)
+
+/*
+ * We don't support AWDL interface delegation.
+ */
+#define        IFNET_IS_AWDL_RESTRICTED(_ifp)                                  \
+       (((_ifp)->if_eflags & (IFEF_AWDL|IFEF_AWDL_RESTRICTED)) ==      \
+           (IFEF_AWDL|IFEF_AWDL_RESTRICTED))
+
+
 extern struct ifnethead ifnet_head;
 extern struct ifnet **ifindex2ifnet;
 extern u_int32_t if_sndq_maxlen;