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root / lab4 / .minix-src / include / net / gen / icmp_hdr.h @ 13

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/*
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server/ip/gen/icmp_hdr.h
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*/
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#ifndef __SERVER__IP__GEN__ICMP_HDR_H__
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#define __SERVER__IP__GEN__ICMP_HDR_H__
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typedef struct icmp_id_seq
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{
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        u16_t        iis_id, iis_seq;
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} icmp_id_seq_t;
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typedef struct icmp_ip_id
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{
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        ip_hdr_t iii_hdr;
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        /* ip_hdr_options and 64 bytes of data */
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} icmp_ip_id_t;
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typedef struct icmp_ram                /* RFC 1256 */
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{
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        u8_t        iram_na;
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        u8_t        iram_aes;
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        u16_t        iram_lt;
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} icmp_ram_t;
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typedef struct icmp_pp
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{
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        u8_t        ipp_ptr;
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        u8_t        ipp_unused[3];
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} icmp_pp_t;
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typedef struct icmp_mtu                /* RFC 1191 */
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{
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        u16_t        im_unused;
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        u16_t        im_mtu;
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} icmp_mtu_t;
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typedef struct icmp_hdr
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{
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        u8_t ih_type, ih_code;
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        u16_t ih_chksum;
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        union
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        {
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                u32_t ihh_unused;
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                icmp_id_seq_t ihh_idseq;
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                ipaddr_t ihh_gateway;
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                icmp_ram_t ihh_ram;
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                icmp_pp_t ihh_pp;
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                icmp_mtu_t ihh_mtu;
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        } ih_hun;
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        union
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        {
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                icmp_ip_id_t ihd_ipid;
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                u8_t uhd_data[1];
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        } ih_dun;
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} icmp_hdr_t;
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#endif /* __SERVER__IP__GEN__ICMP_HDR_H__ */
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/*
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 * $PchId: icmp_hdr.h,v 1.5 2002/06/10 07:10:48 philip Exp $
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 */