Add DLT_CAN_SOCKETCAN, for capturing on the Controller Area Network with

[libpcap] / gencode.c

diff --git a/gencode.c b/gencode.c
index 935e7ec8853e7b858b903b33cd894c3a65421d73..8d9a1c78428543381ad1aa55b8565488b3a5758a 100644 (file)
--- a/gencode.c
+++ b/gencode.c
@@ -1559,6 +1559,16 @@ init_linktype(p)
                off_nl = -1;
                off_nl_nosnap = -1;
                return;
+
+       case DLT_CAN_SOCKETCAN:
+               /*
+                * Currently, only raw "link[N:M]" filtering is supported.
+                */
+               off_linktype = -1;
+               off_macpl = -1;
+               off_nl = -1;
+               off_nl_nosnap = -1;
+               return;
        }
        bpf_error("unknown data link type %d", linktype);
        /* NOTREACHED */
@@ -3420,7 +3430,8 @@ gen_linktype(proto)
                bpf_error("Bluetooth link-layer type filtering not implemented");
 
        case DLT_CAN20B:
-               bpf_error("CAN20B link-layer type filtering not implemented");
+       case DLT_CAN_SOCKETCAN:
+               bpf_error("CAN link-layer type filtering not implemented");
 
        case DLT_IEEE802_15_4:
        case DLT_IEEE802_15_4_LINUX: