source: EcnlProtoTool/trunk/musl-1.1.12/include/netinet/ip_icmp.h@ 279

#ifndef _NETINET_IP_ICMP_H
#define _NETINET_IP_ICMP_H

#include <stdint.h>
#include <netinet/in.h>
#include <netinet/ip.h>

#ifdef __cplusplus
extern "C" {
#endif

struct icmphdr {
        uint8_t type;
        uint8_t code;
        uint16_t checksum;
        union {
                struct {
                        uint16_t id;
                        uint16_t sequence;
                } echo;
                uint32_t gateway;
                struct {
                        uint16_t __unused;
                        uint16_t mtu;
                } frag;
        } un;
};

#define ICMP_ECHOREPLY          0
#define ICMP_DEST_UNREACH       3
#define ICMP_SOURCE_QUENCH      4
#define ICMP_REDIRECT           5
#define ICMP_ECHO               8
#define ICMP_TIME_EXCEEDED      11
#define ICMP_PARAMETERPROB      12
#define ICMP_TIMESTAMP          13
#define ICMP_TIMESTAMPREPLY     14
#define ICMP_INFO_REQUEST       15
#define ICMP_INFO_REPLY         16
#define ICMP_ADDRESS            17
#define ICMP_ADDRESSREPLY       18
#define NR_ICMP_TYPES           18


#define ICMP_NET_UNREACH        0
#define ICMP_HOST_UNREACH       1
#define ICMP_PROT_UNREACH       2
#define ICMP_PORT_UNREACH       3
#define ICMP_FRAG_NEEDED        4
#define ICMP_SR_FAILED          5
#define ICMP_NET_UNKNOWN        6
#define ICMP_HOST_UNKNOWN       7
#define ICMP_HOST_ISOLATED      8
#define ICMP_NET_ANO            9
#define ICMP_HOST_ANO           10
#define ICMP_NET_UNR_TOS        11
#define ICMP_HOST_UNR_TOS       12
#define ICMP_PKT_FILTERED       13
#define ICMP_PREC_VIOLATION     14
#define ICMP_PREC_CUTOFF        15
#define NR_ICMP_UNREACH         15

#define ICMP_REDIR_NET          0
#define ICMP_REDIR_HOST         1
#define ICMP_REDIR_NETTOS       2
#define ICMP_REDIR_HOSTTOS      3

#define ICMP_EXC_TTL            0
#define ICMP_EXC_FRAGTIME       1


struct icmp_ra_addr {
        uint32_t ira_addr;
        uint32_t ira_preference;
};

struct icmp {
        uint8_t  icmp_type;
        uint8_t  icmp_code;
        uint16_t icmp_cksum;
        union {
                uint8_t ih_pptr;
                struct in_addr ih_gwaddr;
                struct ih_idseq {
                        uint16_t icd_id;
                        uint16_t icd_seq;
                } ih_idseq;
                uint32_t ih_void;

                struct ih_pmtu {
                        uint16_t ipm_void;
                        uint16_t ipm_nextmtu;
                } ih_pmtu;

                struct ih_rtradv {
                        uint8_t irt_num_addrs;
                        uint8_t irt_wpa;
                        uint16_t irt_lifetime;
                } ih_rtradv;
        } icmp_hun;
        union {
                struct {
                        uint32_t its_otime;
                        uint32_t its_rtime;
                        uint32_t its_ttime;
                } id_ts;
                struct {
                        struct ip idi_ip;
                } id_ip;
                struct icmp_ra_addr id_radv;
                uint32_t   id_mask;
                uint8_t    id_data[1];
        } icmp_dun;
};

#define icmp_pptr       icmp_hun.ih_pptr
#define icmp_gwaddr     icmp_hun.ih_gwaddr
#define icmp_id         icmp_hun.ih_idseq.icd_id
#define icmp_seq        icmp_hun.ih_idseq.icd_seq
#define icmp_void       icmp_hun.ih_void
#define icmp_pmvoid     icmp_hun.ih_pmtu.ipm_void
#define icmp_nextmtu    icmp_hun.ih_pmtu.ipm_nextmtu
#define icmp_num_addrs  icmp_hun.ih_rtradv.irt_num_addrs
#define icmp_wpa        icmp_hun.ih_rtradv.irt_wpa
#define icmp_lifetime   icmp_hun.ih_rtradv.irt_lifetime
#define icmp_otime      icmp_dun.id_ts.its_otime
#define icmp_rtime      icmp_dun.id_ts.its_rtime
#define icmp_ttime      icmp_dun.id_ts.its_ttime
#define icmp_ip         icmp_dun.id_ip.idi_ip
#define icmp_radv       icmp_dun.id_radv
#define icmp_mask       icmp_dun.id_mask
#define icmp_data       icmp_dun.id_data

#define ICMP_MINLEN     8
#define ICMP_TSLEN      (8 + 3 * sizeof (n_time))
#define ICMP_MASKLEN    12
#define ICMP_ADVLENMIN  (8 + sizeof (struct ip) + 8)
#define ICMP_ADVLEN(p)  (8 + ((p)->icmp_ip.ip_hl << 2) + 8)

#define ICMP_UNREACH            3
#define ICMP_SOURCEQUENCH       4
#define ICMP_ROUTERADVERT       9
#define ICMP_ROUTERSOLICIT      10
#define ICMP_TIMXCEED           11
#define ICMP_PARAMPROB          12
#define ICMP_TSTAMP             13
#define ICMP_TSTAMPREPLY        14
#define ICMP_IREQ               15
#define ICMP_IREQREPLY          16
#define ICMP_MASKREQ            17
#define ICMP_MASKREPLY          18
#define ICMP_MAXTYPE            18

#define ICMP_UNREACH_NET                0
#define ICMP_UNREACH_HOST               1
#define ICMP_UNREACH_PROTOCOL           2
#define ICMP_UNREACH_PORT               3
#define ICMP_UNREACH_NEEDFRAG           4
#define ICMP_UNREACH_SRCFAIL            5
#define ICMP_UNREACH_NET_UNKNOWN        6
#define ICMP_UNREACH_HOST_UNKNOWN       7
#define ICMP_UNREACH_ISOLATED           8
#define ICMP_UNREACH_NET_PROHIB         9
#define ICMP_UNREACH_HOST_PROHIB        10
#define ICMP_UNREACH_TOSNET             11
#define ICMP_UNREACH_TOSHOST            12
#define ICMP_UNREACH_FILTER_PROHIB      13
#define ICMP_UNREACH_HOST_PRECEDENCE    14
#define ICMP_UNREACH_PRECEDENCE_CUTOFF  15

#define ICMP_REDIRECT_NET       0
#define ICMP_REDIRECT_HOST      1
#define ICMP_REDIRECT_TOSNET    2
#define ICMP_REDIRECT_TOSHOST   3

#define ICMP_TIMXCEED_INTRANS   0
#define ICMP_TIMXCEED_REASS     1

#define ICMP_PARAMPROB_OPTABSENT 1

#define ICMP_INFOTYPE(type) \
        ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
        (type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
        (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
        (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
        (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)

#ifdef __cplusplus
}
#endif

#endif