xnu-4570.31.3.tar.gz

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

diff --git a/bsd/net/if_arp.h b/bsd/net/if_arp.h
index 0a6c2e874f4253cea058a01147d5dd55a3639da5..45bb0508884bca8d1f6f9a11797f945ec9dc14e4 100644 (file)
--- a/bsd/net/if_arp.h
+++ b/bsd/net/if_arp.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -63,6 +63,7 @@
 
 #ifndef _NET_IF_ARP_H_
 #define        _NET_IF_ARP_H_
+#include <stdint.h>
 #include <sys/appleapiopts.h>
 #include <netinet/in.h>
 
@@ -120,4 +121,33 @@ struct arpreq {
 #define        ATF_PUBL        0x08    /* publish entry (respond for other host) */
 #define        ATF_USETRAILERS 0x10    /* has requested trailers */
 
+struct arpstat {
+       /* Normal things that happen: */
+       uint32_t txrequests;    /* # of ARP requests sent by this host. */
+       uint32_t txreplies;     /* # of ARP replies sent by this host. */
+       uint32_t txannounces;   /* # of ARP announcements sent by this host. */
+       uint32_t rxrequests;    /* # of ARP requests received by this host. */
+       uint32_t rxreplies;     /* # of ARP replies received by this host. */
+       uint32_t received;      /* # of ARP packets received by this host. */
+
+       /* Abnormal event and error counting: */
+       uint32_t txconflicts;   /* # of ARP conflict probes sent */
+       uint32_t invalidreqs;   /* # of invalid ARP resolve requests */
+       uint32_t reqnobufs;     /* # of failed requests due to no memory */
+       uint32_t dropped;       /* # of packets dropped waiting for a reply. */
+       uint32_t purged;        /* # of packets purged while removing entries */
+       uint32_t timeouts;      /* # of times with entries removed */
+                               /* due to timeout. */
+       uint32_t dupips;        /* # of duplicate IPs detected. */
+
+       /* General statistics */
+       uint32_t inuse;         /* # of ARP entries in routing table */
+       uint32_t txurequests;   /* # of ARP requests sent (unicast) */
+       uint32_t held;          /* # of packets held waiting for a reply */
+};
+
+#ifdef BSD_KERNEL_PRIVATE
+extern struct arpstat arpstat;
+#endif /* BSD_KERNEL_PRIVATE */
+
 #endif /* !_NET_IF_ARP_H_ */