minix/include/net/gen/icmp_hdr.h

   1 /*
   2 server/ip/gen/icmp_hdr.h
   3 */
   4
   5 #ifndef __SERVER__IP__GEN__ICMP_HDR_H__
   6 #define __SERVER__IP__GEN__ICMP_HDR_H__
   7
   8 typedef struct icmp_id_seq
   9 {
  10         u16_t   iis_id, iis_seq;
  11 } icmp_id_seq_t;
  12
  13 typedef struct icmp_ip_id
  14 {
  15         ip_hdr_t iii_hdr;
  16         /* ip_hdr_options and 64 bytes of data */
  17 } icmp_ip_id_t;
  18
  19 typedef struct icmp_ram         /* RFC 1256 */
  20 {
  21         u8_t    iram_na;
  22         u8_t    iram_aes;
  23         u16_t   iram_lt;
  24 } icmp_ram_t;
  25
  26 typedef struct icmp_pp
  27 {
  28         u8_t    ipp_ptr;
  29         u8_t    ipp_unused[3];
  30 } icmp_pp_t;
  31
  32 typedef struct icmp_mtu         /* RFC 1191 */
  33 {
  34         u16_t   im_unused;
  35         u16_t   im_mtu;
  36 } icmp_mtu_t;
  37
  38 typedef struct icmp_hdr
  39 {
  40         u8_t ih_type, ih_code;
  41         u16_t ih_chksum;
  42         union
  43         {
  44                 u32_t ihh_unused;
  45                 icmp_id_seq_t ihh_idseq;
  46                 ipaddr_t ihh_gateway;
  47                 icmp_ram_t ihh_ram;
  48                 icmp_pp_t ihh_pp;
  49                 icmp_mtu_t ihh_mtu;
  50         } ih_hun;
  51         union
  52         {
  53                 icmp_ip_id_t ihd_ipid;
  54                 u8_t uhd_data[1];
  55         } ih_dun;
  56 } icmp_hdr_t;
  57
  58 #endif /* __SERVER__IP__GEN__ICMP_HDR_H__ */
  59
  60 /*
  61  * $PchId: icmp_hdr.h,v 1.5 2002/06/10 07:10:48 philip Exp $
  62  */