Based on work from Florent Drouin, split the 32-bit link-layer type

[libpcap] / pcap / bpf.h

diff --git a/pcap/bpf.h b/pcap/bpf.h
index 2a97cdf26f7acc9988c5e4354f9515f86a8b5f4d..05ec514aec24bc71344d444f3c46fb80d653b189 100644 (file)
--- a/pcap/bpf.h
+++ b/pcap/bpf.h
@@ -37,7 +37,7 @@
  *
  *      @(#)bpf.h       7.1 (Berkeley) 5/7/91
  *
- * @(#) $Header: /tcpdump/master/libpcap/pcap/bpf.h,v 1.17 2007-09-19 02:40:35 guy Exp $ (LBL)
+ * @(#) $Header: /tcpdump/master/libpcap/pcap/bpf.h,v 1.18 2007-09-29 19:33:29 guy Exp $ (LBL)
  */
 
 /*
@@ -742,6 +742,26 @@ struct bpf_version {
 #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201
 
 
+/*
+ * DLT and savefile link type values are split into a class and
+ * a member of that class.  A class value of 0 indicates a regular
+ * DLT_/LINKTYPE_ value.
+ */
+#define DLT_CLASS(x)           ((x) & 0x03ff0000)
+
+/*
+ * NetBSD-specific generic "raw" link type.  The class value indicates
+ * that this is the generic raw type, and the lower 16 bits are the
+ * address family we're dealing with.  Those values are NetBSD-specific;
+ * do not assume that they correspond to AF_ values for your operating
+ * system.
+ */
+#define        DLT_CLASS_NETBSD_RAWAF  0x02240000
+#define        DLT_NETBSD_RAWAF(af)    (DLT_CLASS_NETBSD_RAWAF | (af))
+#define        DLT_NETBSD_RAWAF_AF(x)  ((x) & 0x0000ffff)
+#define        DLT_IS_NETBSD_RAWAF(x)  (DLT_CLASS(x) == DLT_CLASS_NETBSD_RAWAF)
+
+
 /*
  * The instruction encodings.
  */