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77 lines
1.6 KiB
C
Executable File
77 lines
1.6 KiB
C
Executable File
#ifndef COMS_NETWORK_PACKET_HEADER_H
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#define COMS_NETWORK_PACKET_HEADER_H
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#include <stdio.h>
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#include "../../stdlib/Types.h"
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#if _WIN32
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#include <winsock2.h>
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#include <Ws2ipdef.h>
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#include <ws2tcpip.h>
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#elif __linux__
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#endif
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#define HEADER_IPV6_SIZE 40
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// Size 40 bytes
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struct HeaderIPv6 {
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byte data[HEADER_IPV6_SIZE];
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};
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// Size 40 bytes
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struct PACKED_STRUCT HeaderIPv6Unpacked {
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uint32 ip6_flow; // also contains version and traffic class
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uint16 ip6_plen;
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byte ip6_nxt;
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byte ip6_hops;
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in6_addr ip6_src;
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in6_addr ip6_dst;
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};
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UNPACKED_STRUCT
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#define HEADER_UDP_SIZE 8
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// Size 8 bytes
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struct UDPHeaderIPv6 {
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byte data[HEADER_UDP_SIZE];
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};
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// Size 8 bytes
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struct PACKED_STRUCT UDPHeaderIPv6Unpacked {
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uint16 source;
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uint16 dest;
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uint16 len;
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uint16 check;
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};
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UNPACKED_STRUCT
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struct PACKED_STRUCT UDPPseudoHeaderIPv6 {
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in6_addr src;
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in6_addr dst;
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uint32 length;
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byte zero[3];
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byte next_header;
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};
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UNPACKED_STRUCT
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inline
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void packet_create_destination_addr(sockaddr_in6* dest_addr, const char* ipv6, uint16 port)
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{
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memset(dest_addr, 0, sizeof(sockaddr_in6));
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dest_addr->sin6_family = AF_INET6;
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dest_addr->sin6_port = SWAP_ENDIAN_BIG(port);
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inet_pton(AF_INET6, ipv6, &dest_addr->sin6_addr);
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}
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inline
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void packet_create_destination_addr(sockaddr_in6* dest_addr, in6_addr* ipv6, uint16 port)
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{
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dest_addr->sin6_family = AF_INET6;
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dest_addr->sin6_port = SWAP_ENDIAN_BIG(port);
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memcpy(&dest_addr->sin6_addr, ipv6, sizeof(in6_addr));
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}
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#endif |