src/proto_ipv6_no_nxt_hdr.h

   1 /*
   2  * netsniff-ng - the packet sniffing beast
   3  * Copyright 2012 Markus Amend <markus@netsniff-ng.org>
   4  * Subject to the GPL, version 2.
   5  *
   6  * IPv6 No Next Header described in RFC2460
   7  */
   8
   9 #ifndef PROTO_IPV6_NO_NXT_HDR_H
  10 #define PROTO_IPV6_NO_NXT_HDR_H
  11
  12 #include <stdio.h>
  13 #include <stdint.h>
  14 #include <netinet/in.h>    /* for ntohs() */
  15
  16 #include "proto_struct.h"
  17 #include "dissector_eth.h"
  18
  19 static inline void no_next_header(struct pkt_buff *pkt)
  20 {
  21         /*
  22          * The value 59 in the Next Header field of an IPv6 header or any
  23          * extension header indicates that there is nothing following that
  24          * header.  If the Payload Length field of the IPv6 header indicates the
  25          * presence of octets past the end of a header whose Next Header field
  26          * contains 59, those octets must be ignored, and passed on unchanged if
  27          * the packet is forwarded.
  28          */
  29         tprintf(" [ No Next Header");
  30         tprintf(" ]\n");
  31 }
  32
  33 static inline void no_next_header_less(struct pkt_buff *pkt)
  34 {
  35         tprintf(" No Next Header");
  36 }
  37
  38 struct protocol ipv6_no_next_header_ops = {
  39         .key = 0x3B,
  40         .print_full = no_next_header,
  41         .print_less = no_next_header_less,
  42 };
  43
  44 #endif /* PROTO_IPV6_NO_NXT_HDR_H */