Created
April 12, 2021 15:54
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| #define ETH_P_IP 0x0800 | |
| { | |
| /* --- Ethernet Header --- */ | |
| 0x7e, 0x2e, 0x1a, 0x3b, 0x70, 0x18, # MAC Dest | |
| 0xde, 0xde, 0xde, 0xde, 0xde, 0xde, # MAC Source | |
| const16(ETH_P_IP), | |
| /* --- IPv4 Header --- */ | |
| 0b01000101, 0, /* IPv4 Version, IHL, TOS */ | |
| const16(46), /* IPv4 Total Len (UDP len + IP hdr 20 bytes)*/ | |
| const16(2), /* IPv4 Ident */ | |
| 0b01000000, 0, /* IPv4 Flags, Frag Off */ | |
| 64, /* IPv4 TTL */ | |
| 17, /* Proto UDP */ | |
| csumip(14, 33), /* IPv4 Checksum (IP header from, to) */ | |
| /* --- UDP Header --- */ | |
| 10, 0, 3, 100, /* Source IP */ | |
| 10, 0, 3, 101, /* Dest IP */ | |
| const16(9999), /* UDP Source Port e.g. drnd(2)*/ | |
| const16(9999), /* UDP Dest Port */ | |
| const16(26), /* UDP length (UDP hdr 8 bytes + payload size */ | |
| /* UDP checksum can be dyn calc via csumudp(offset IP, offset TCP) | |
| * which is csumudp(14, 34), but for UDP its allowed to be zero | |
| */ | |
| const16(0), | |
| /*** Payload ***/ | |
| fill('B', 18), | |
| } |
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