decode/ppp: add missing types definitions

Recognize PPP_CCP, PPP_CBCP and PPP_COMP_DGRAM.

Does not implement decoders for these record types, so these
are logged as unsupported types. Was "wrong_type" before.

src/decode-ppp.c

@@ -158,6 +158,9 @@ static int DecodePPPUncompressedProto(ThreadVars *tv, DecodeThreadVars *dtv, Pac
         case PPP_PAP:
         case PPP_LQM:
         case PPP_CHAP:
+        case PPP_CCP:
+        case PPP_CBCP:
+        case PPP_COMP_DGRAM:
             ENGINE_SET_EVENT(p,PPP_UNSUP_PROTO);
             return TM_ECODE_OK;
 

src/decode-ppp.h

@@ -59,6 +59,9 @@
 #define PPP_PAP        0xc023       /* Password Authentication Protocol */
 #define PPP_LQM        0xc025       /* Link Quality Monitoring */
 #define PPP_CHAP       0xc223       /* Challenge Handshake Authentication Protocol */
+#define PPP_CCP        0x80fd       /* Compression Control Protocol */
+#define PPP_CBCP       0xc029       /* Callback Control Protocol CBCP */
+#define PPP_COMP_DGRAM 0x00fd       /* Compressed datagram */
 
 /** PPP Packet header */
 typedef struct PPPHdr_ {