Add support for PCAP LINKTYPE_IPV4

src/decode.h

@@ -1090,6 +1090,7 @@ void DecodeGlobalConfig(void);
 /* http://www.tcpdump.org/linktypes.html defines DLT_RAW as 101, yet others don't.
  * Libpcap on at least OpenBSD returns 101 as datalink type for RAW pcaps though. */
 #define LINKTYPE_RAW2       101
+#define LINKTYPE_IPV4       228
 #define PPP_OVER_GRE        11
 #define VLAN_OVER_GRE       13
 

src/source-pcap-file.c

@@ -326,6 +326,7 @@ TmEcode ReceivePcapFileThreadInit(ThreadVars *tv, const void *initdata, void **d
         case LINKTYPE_PPP:
             pcap_g.Decoder = DecodePPP;
             break;
+        case LINKTYPE_IPV4:
         case LINKTYPE_RAW:
         case LINKTYPE_RAW2:
             pcap_g.Decoder = DecodeRaw;