58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
#ifndef _DECODE_IPV6_H
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#define _DECODE_IPV6_H
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#ifdef __cpluscplus
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extern "C"
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{
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#endif
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#include "public.h"
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#define IPV6_HEADER_LEN 40
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typedef struct ipv6_header_s
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{
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union
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{
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struct ip6_un1_
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{
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uint32_t ip6_un1_flow; /* 20 bits of flow-ID */
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uint16_t ip6_un1_plen; /* payload length */
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uint8_t ip6_un1_nxt; /* next header */
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uint8_t ip6_un1_hlim; /* hop limit */
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} ip6_un1;
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uint8_t ip6_un2_vfc; /* 4 bits version, top 4 bits class */
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} ip6_hdrun;
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union
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{
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struct
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{
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uint32_t ip6_src[4];
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uint32_t ip6_dst[4];
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} ip6_un2;
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uint16_t ip6_addrs[16];
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} ip6_hdrun2;
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} __attribute__((__packed__)) ipv6_header_t;
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typedef struct ipv6_info_s
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{
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char src_addr[INET6_ADDRSTRLEN];
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char dst_addr[INET6_ADDRSTRLEN];
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ipv6_header_t *hdr;
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uint8_t *payload;
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uint8_t next_protocol;
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uint32_t hdr_len;
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uint32_t payload_len;
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} ipv6_info_t;
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int decode_ipv6(ipv6_info_t *packet, const uint8_t *data, uint32_t len);
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int dump_ipv6_info(ipv6_info_t *packet, char *buff, size_t size);
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#ifdef __cpluscplus
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}
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#endif
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#endif |