Add DLT_AX25_KISS, for AX.25 with a KISS header, as per discussions in

[libpcap] / gencode.c

diff --git a/gencode.c b/gencode.c
index 54598eb8ed5ee0eb0693fb41dc0203af195f360d..142c31db3ac62d2e29945046ec9af77cb628a0c0 100644 (file)
--- a/gencode.c
+++ b/gencode.c
@@ -21,7 +21,7 @@
  */
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.289 2007-10-05 01:03:53 guy Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.290 2007-10-05 01:40:14 guy Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -1403,6 +1403,16 @@ init_linktype(p)
                off_nl = -1;
                off_nl_nosnap = -1;
                return;
+
+       case DLT_AX25_KISS:
+               /*
+                * Currently, only raw "link[N:M]" filtering is supported.
+                */
+               off_linktype = -1;      /* variable, min 15, max 71 steps of 7 */
+               off_nl = -1;            /* variable, min 16, max 71 steps of 7 */
+               off_nl_nosnap = -1;     /* no 802.2 LLC */
+               off_mac = 1;            /* step over the kiss length byte */
+               return;
        }
        bpf_error("unknown data link type %d", linktype);
        /* NOTREACHED */
@@ -2677,6 +2687,9 @@ gen_linktype(proto)
 
        case DLT_LINUX_LAPD:
                bpf_error("LAPD link-layer type filtering not implemented");
+
+       case DLT_AX25_KISS:
+               bpf_error("AX.25 link-layer type filtering not implemented");
        }
 
        /*