dccp: reset packet

*** 50,64 ****
--- 50,66 ----
  #ifdef  _BIG_ENDIAN
  #define IP_HDR_CSUM_TTL_ADJUST  256
  #define IP_TCP_CSUM_COMP        IPPROTO_TCP
  #define IP_UDP_CSUM_COMP        IPPROTO_UDP
  #define IP_ICMPV6_CSUM_COMP     IPPROTO_ICMPV6
+ #define IP_DCCP_CSUM_COMP       IPPROTO_DCCP
  #else
  #define IP_HDR_CSUM_TTL_ADJUST  1
  #define IP_TCP_CSUM_COMP        (IPPROTO_TCP << 8)
  #define IP_UDP_CSUM_COMP        (IPPROTO_UDP << 8)
  #define IP_ICMPV6_CSUM_COMP     (IPPROTO_ICMPV6 << 8)
+ #define IP_DCCP_CSUM_COMP       (IPPROTO_DCCP << 8)
  #endif
  
  #define TCP_CHECKSUM_OFFSET     16
  #define TCP_CHECKSUM_SIZE       2
  
*** 66,84 ****
--- 68,92 ----
  #define UDP_CHECKSUM_SIZE       2
  
  #define ICMPV6_CHECKSUM_OFFSET  2
  #define ICMPV6_CHECKSUM_SIZE    2
  
+ #define DCCP_CHECKSUM_OFFSET    6
+ #define DCCP_CHECKSUM_SIZE      2
+ 
  #define IPH_TCPH_CHECKSUMP(ipha, hlen)  \
          ((uint16_t *)(((uchar_t *)(ipha)) + ((hlen) + TCP_CHECKSUM_OFFSET)))
  
  #define IPH_UDPH_CHECKSUMP(ipha, hlen)  \
          ((uint16_t *)(((uchar_t *)(ipha)) + ((hlen) + UDP_CHECKSUM_OFFSET)))
  
  #define IPH_ICMPV6_CHECKSUMP(ipha, hlen)        \
          ((uint16_t *)(((uchar_t *)(ipha)) + ((hlen) + ICMPV6_CHECKSUM_OFFSET)))
  
+ #define IPH_DCCPH_CHECKSUMP(ipha, hlen) \
+         ((uint16_t *)(((uchar_t *)(ipha)) + ((hlen) + DCCP_CHECKSUM_OFFSET)))
+ 
  #define ILL_HCKSUM_CAPABLE(ill)         \
          (((ill)->ill_capabilities & ILL_CAPAB_HCKSUM) != 0)
  
  /*
   * Macro to adjust a given checksum value depending on any prepended