src/libping/linux.h

   1 #define ICMP_ECHOREPLY          0
   2 #define ICMP_ECHO               8
   3 #define ICMP_MINLEN             8
   4
   5 struct ip {
   6 #if (BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN)
   7         u_char  ip_hl:4,                /* header length */
   8                 ip_v:4;                 /* version */
   9 #else
  10         u_char  ip_v:4,                 /* version */
  11                 ip_hl:4;                /* header length */
  12 #endif
  13         u_char  ip_tos;                 /* type of service */
  14         short   ip_len;                 /* total length */
  15         u_short ip_id;                  /* identification */
  16         short   ip_off;                 /* fragment offset field */
  17 #define IP_DF 0x4000                    /* dont fragment flag */
  18 #define IP_MF 0x2000                    /* more fragments flag */
  19         u_char  ip_ttl;                 /* time to live */
  20         u_char  ip_p;                   /* protocol */
  21         u_short ip_sum;                 /* checksum */
  22         struct  in_addr ip_src,ip_dst;  /* source and dest address */
  23 };
  24
  25 #define n_short u_short                 /* normally defined in in_systm.h */
  26 #define n_long  u_int                   /* redefine for 64-bit machines */
  27 #define n_time  u_int                   /* redefine for 64-bit machines */
  28
  29 struct icmp {
  30         u_char  icmp_type;              /* type of message, see below */
  31         u_char  icmp_code;              /* type sub code */
  32         u_short icmp_cksum;             /* ones complement cksum of struct */
  33         union {
  34                 u_char ih_pptr;                 /* ICMP_PARAMPROB */
  35                 struct in_addr ih_gwaddr;       /* ICMP_REDIRECT */
  36                 struct ih_idseq {
  37                         n_short icd_id;
  38                         n_short icd_seq;
  39                 } ih_idseq;
  40                 int ih_void;
  41         } icmp_hun;
  42 #define icmp_pptr       icmp_hun.ih_pptr
  43 #define icmp_gwaddr     icmp_hun.ih_gwaddr
  44 #define icmp_id         icmp_hun.ih_idseq.icd_id
  45 #define icmp_seq        icmp_hun.ih_idseq.icd_seq
  46 #define icmp_void       icmp_hun.ih_void
  47         union {
  48                 struct id_ts {
  49                         n_time its_otime;
  50                         n_time its_rtime;
  51                         n_time its_ttime;
  52                 } id_ts;
  53                 struct id_ip  {
  54                         struct ip idi_ip;
  55                         /* options and then 64 bits of data */
  56                 } id_ip;
  57                 n_long  id_mask;
  58                 char    id_data[1];
  59         } icmp_dun;
  60 #define icmp_otime      icmp_dun.id_ts.its_otime
  61 #define icmp_rtime      icmp_dun.id_ts.its_rtime
  62 #define icmp_ttime      icmp_dun.id_ts.its_ttime
  63 #define icmp_ip         icmp_dun.id_ip.idi_ip
  64 #define icmp_mask       icmp_dun.id_mask
  65 #define icmp_data       icmp_dun.id_data
  66 };