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authorwollman <wollman@FreeBSD.org>1995-08-31 15:21:31 +0000
committerwollman <wollman@FreeBSD.org>1995-08-31 15:21:31 +0000
commit2807c8cd41fd1112fbdc01fbead9c6ca6c5cd1f3 (patch)
tree9128f8f17515feabc5264e8be42902bfaef080f1 /sys/net/if.h
parentb4490d7ddfb097e187678481e355b3b3c63f3b56 (diff)
downloadFreeBSD-src-2807c8cd41fd1112fbdc01fbead9c6ca6c5cd1f3.zip
FreeBSD-src-2807c8cd41fd1112fbdc01fbead9c6ca6c5cd1f3.tar.gz
Add a few hooks (in the form of an array of four void *'s) to allow
various bits of software to save some data in the ifnet structure without having to constantly change the declaration thereof.
Diffstat (limited to 'sys/net/if.h')
-rw-r--r--sys/net/if.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/net/if.h b/sys/net/if.h
index 6283851..f1e634b 100644
--- a/sys/net/if.h
+++ b/sys/net/if.h
@@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)if.h 8.1 (Berkeley) 6/10/93
- * $Id: if.h,v 1.20 1995/08/16 16:13:39 bde Exp $
+ * $Id: if.h,v 1.21 1995/08/30 00:33:17 bde Exp $
*/
#ifndef _NET_IF_H_
@@ -117,6 +117,8 @@ struct ifqueue {
int ifq_drops;
};
+#define IF_NPRIVATE 4
+
/*
* Structure describing information about an interface
* which may be of interest to management entities.
@@ -149,6 +151,7 @@ struct ifnet {
void (*if_watchdog) /* timer routine */
__P((int));
struct ifqueue if_snd; /* output queue */
+ void *if_private[IF_NPRIVATE]; /* opaque data for various clients */
};
#define if_mtu if_data.ifi_mtu
#define if_type if_data.ifi_type
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