include/netinet/ip_icmp.h

   1 #ifndef _NETINET_IP_ICMP_H
   2 #define _NETINET_IP_ICMP_H
   3
   4 #include <stdint.h>
   5 #include <netinet/in.h>
   6 #include <netinet/ip.h>
   7
   8 #ifdef __cplusplus
   9 extern "C" {
  10 #endif
  11
  12 struct icmphdr {
  13         uint8_t type;
  14         uint8_t code;
  15         uint16_t checksum;
  16         union {
  17                 struct {
  18                         uint16_t id;
  19                         uint16_t sequence;
  20                 } echo;
  21                 uint32_t gateway;
  22                 struct {
  23                         uint16_t __unused;
  24                         uint16_t mtu;
  25                 } frag;
  26                 uint8_t reserved[4];
  27         } un;
  28 };
  29
  30 #define ICMP_ECHOREPLY          0
  31 #define ICMP_DEST_UNREACH       3
  32 #define ICMP_SOURCE_QUENCH      4
  33 #define ICMP_REDIRECT           5
  34 #define ICMP_ECHO               8
  35 #define ICMP_TIME_EXCEEDED      11
  36 #define ICMP_PARAMETERPROB      12
  37 #define ICMP_TIMESTAMP          13
  38 #define ICMP_TIMESTAMPREPLY     14
  39 #define ICMP_INFO_REQUEST       15
  40 #define ICMP_INFO_REPLY         16
  41 #define ICMP_ADDRESS            17
  42 #define ICMP_ADDRESSREPLY       18
  43 #define NR_ICMP_TYPES           18
  44
  45
  46 #define ICMP_NET_UNREACH        0
  47 #define ICMP_HOST_UNREACH       1
  48 #define ICMP_PROT_UNREACH       2
  49 #define ICMP_PORT_UNREACH       3
  50 #define ICMP_FRAG_NEEDED        4
  51 #define ICMP_SR_FAILED          5
  52 #define ICMP_NET_UNKNOWN        6
  53 #define ICMP_HOST_UNKNOWN       7
  54 #define ICMP_HOST_ISOLATED      8
  55 #define ICMP_NET_ANO            9
  56 #define ICMP_HOST_ANO           10
  57 #define ICMP_NET_UNR_TOS        11
  58 #define ICMP_HOST_UNR_TOS       12
  59 #define ICMP_PKT_FILTERED       13
  60 #define ICMP_PREC_VIOLATION     14
  61 #define ICMP_PREC_CUTOFF        15
  62 #define NR_ICMP_UNREACH         15
  63
  64 #define ICMP_REDIR_NET          0
  65 #define ICMP_REDIR_HOST         1
  66 #define ICMP_REDIR_NETTOS       2
  67 #define ICMP_REDIR_HOSTTOS      3
  68
  69 #define ICMP_EXC_TTL            0
  70 #define ICMP_EXC_FRAGTIME       1
  71
  72
  73 struct icmp_ra_addr {
  74         uint32_t ira_addr;
  75         uint32_t ira_preference;
  76 };
  77
  78 struct icmp {
  79         uint8_t  icmp_type;
  80         uint8_t  icmp_code;
  81         uint16_t icmp_cksum;
  82         union {
  83                 uint8_t ih_pptr;
  84                 struct in_addr ih_gwaddr;
  85                 struct ih_idseq {
  86                         uint16_t icd_id;
  87                         uint16_t icd_seq;
  88                 } ih_idseq;
  89                 uint32_t ih_void;
  90
  91                 struct ih_pmtu {
  92                         uint16_t ipm_void;
  93                         uint16_t ipm_nextmtu;
  94                 } ih_pmtu;
  95
  96                 struct ih_rtradv {
  97                         uint8_t irt_num_addrs;
  98                         uint8_t irt_wpa;
  99                         uint16_t irt_lifetime;
 100                 } ih_rtradv;
 101         } icmp_hun;
 102         union {
 103                 struct {
 104                         uint32_t its_otime;
 105                         uint32_t its_rtime;
 106                         uint32_t its_ttime;
 107                 } id_ts;
 108                 struct {
 109                         struct ip idi_ip;
 110                 } id_ip;
 111                 struct icmp_ra_addr id_radv;
 112                 uint32_t   id_mask;
 113                 uint8_t    id_data[1];
 114         } icmp_dun;
 115 };
 116
 117 #define icmp_pptr       icmp_hun.ih_pptr
 118 #define icmp_gwaddr     icmp_hun.ih_gwaddr
 119 #define icmp_id         icmp_hun.ih_idseq.icd_id
 120 #define icmp_seq        icmp_hun.ih_idseq.icd_seq
 121 #define icmp_void       icmp_hun.ih_void
 122 #define icmp_pmvoid     icmp_hun.ih_pmtu.ipm_void
 123 #define icmp_nextmtu    icmp_hun.ih_pmtu.ipm_nextmtu
 124 #define icmp_num_addrs  icmp_hun.ih_rtradv.irt_num_addrs
 125 #define icmp_wpa        icmp_hun.ih_rtradv.irt_wpa
 126 #define icmp_lifetime   icmp_hun.ih_rtradv.irt_lifetime
 127 #define icmp_otime      icmp_dun.id_ts.its_otime
 128 #define icmp_rtime      icmp_dun.id_ts.its_rtime
 129 #define icmp_ttime      icmp_dun.id_ts.its_ttime
 130 #define icmp_ip         icmp_dun.id_ip.idi_ip
 131 #define icmp_radv       icmp_dun.id_radv
 132 #define icmp_mask       icmp_dun.id_mask
 133 #define icmp_data       icmp_dun.id_data
 134
 135 #define ICMP_MINLEN     8
 136 #define ICMP_TSLEN      (8 + 3 * sizeof (n_time))
 137 #define ICMP_MASKLEN    12
 138 #define ICMP_ADVLENMIN  (8 + sizeof (struct ip) + 8)
 139 #define ICMP_ADVLEN(p)  (8 + ((p)->icmp_ip.ip_hl << 2) + 8)
 140
 141 #define ICMP_UNREACH            3
 142 #define ICMP_SOURCEQUENCH       4
 143 #define ICMP_ROUTERADVERT       9
 144 #define ICMP_ROUTERSOLICIT      10
 145 #define ICMP_TIMXCEED           11
 146 #define ICMP_PARAMPROB          12
 147 #define ICMP_TSTAMP             13
 148 #define ICMP_TSTAMPREPLY        14
 149 #define ICMP_IREQ               15
 150 #define ICMP_IREQREPLY          16
 151 #define ICMP_MASKREQ            17
 152 #define ICMP_MASKREPLY          18
 153 #define ICMP_MAXTYPE            18
 154
 155 #define ICMP_UNREACH_NET                0
 156 #define ICMP_UNREACH_HOST               1
 157 #define ICMP_UNREACH_PROTOCOL           2
 158 #define ICMP_UNREACH_PORT               3
 159 #define ICMP_UNREACH_NEEDFRAG           4
 160 #define ICMP_UNREACH_SRCFAIL            5
 161 #define ICMP_UNREACH_NET_UNKNOWN        6
 162 #define ICMP_UNREACH_HOST_UNKNOWN       7
 163 #define ICMP_UNREACH_ISOLATED           8
 164 #define ICMP_UNREACH_NET_PROHIB         9
 165 #define ICMP_UNREACH_HOST_PROHIB        10
 166 #define ICMP_UNREACH_TOSNET             11
 167 #define ICMP_UNREACH_TOSHOST            12
 168 #define ICMP_UNREACH_FILTER_PROHIB      13
 169 #define ICMP_UNREACH_HOST_PRECEDENCE    14
 170 #define ICMP_UNREACH_PRECEDENCE_CUTOFF  15
 171
 172 #define ICMP_REDIRECT_NET       0
 173 #define ICMP_REDIRECT_HOST      1
 174 #define ICMP_REDIRECT_TOSNET    2
 175 #define ICMP_REDIRECT_TOSHOST   3
 176
 177 #define ICMP_TIMXCEED_INTRANS   0
 178 #define ICMP_TIMXCEED_REASS     1
 179
 180 #define ICMP_PARAMPROB_OPTABSENT 1
 181
 182 #define ICMP_INFOTYPE(type) \
 183         ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
 184         (type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
 185         (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
 186         (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
 187         (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
 188
 189 #ifdef __cplusplus
 190 }
 191 #endif
 192
 193 #endif