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April 6, 2020 06:11
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wake on lan using ethernet frame in windows
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| #include <iostream> | |
| #include <stdlib.h> | |
| #include <stdio.h> | |
| #include <pcap.h> | |
| u_char char_to_hex(char c) | |
| { | |
| if (c >= '0' && c <= '9') | |
| { | |
| return c - '0'; | |
| } | |
| else if (c >= 'A' && c <= 'F') | |
| { | |
| return c - 'A' + 0xa; | |
| } | |
| else if (c >= 'a' && c <= 'f') | |
| { | |
| return c - 'a' + 0xa; | |
| } | |
| return 0; | |
| } | |
| void mac_to_hex(char* str_mac, u_char* dst_data) | |
| { | |
| dst_data[0] = (char_to_hex(str_mac[0]) << 4) + char_to_hex(str_mac[1]); | |
| dst_data[1] = (char_to_hex(str_mac[3]) << 4) + char_to_hex(str_mac[4]); | |
| dst_data[2] = (char_to_hex(str_mac[6]) << 4) + char_to_hex(str_mac[7]); | |
| dst_data[3] = (char_to_hex(str_mac[9]) << 4) + char_to_hex(str_mac[10]); | |
| dst_data[4] = (char_to_hex(str_mac[12]) << 4) + char_to_hex(str_mac[13]); | |
| dst_data[5] = (char_to_hex(str_mac[15]) << 4) + char_to_hex(str_mac[16]); | |
| } | |
| int main(int argc, char** argv) | |
| { | |
| pcap_t* fp; | |
| char errbuf[PCAP_ERRBUF_SIZE]; | |
| u_char packet[200]; | |
| //char pSource[] = "rpcap://\\Device\\NPF_{82f71d8f-5ed1-4aa9-a247-bda3db206c40}"; | |
| if (argc < 4) | |
| { | |
| fprintf(stderr, "usage:\nwin_wol.exe device_id src_mac dst_mac"); | |
| return 0; | |
| } | |
| if (strlen(argv[2]) != 17 || strlen(argv[3]) != 17) | |
| { | |
| fprintf(stderr, "illegal mac address format, src_mac: %s, dst_mac: %s\n", argv[2], argv[3]); | |
| return 0; | |
| } | |
| std::string strSource = "rpcap://\\Device\\NPF_{" + std::string(argv[1]) + "}"; | |
| u_char src_mac[7] = { 0xd0, 0xc6, 0x37, 0x05, 0x68, 0xa6, 0 }; | |
| u_char dst_mac[7] = { 0x8c, 0x16, 0x45, 0x90, 0x1d, 0x8e, 0 }; | |
| mac_to_hex(argv[2], src_mac); | |
| mac_to_hex(argv[3], dst_mac); | |
| if ((fp = pcap_open(strSource.c_str(), | |
| 100, | |
| PCAP_OPENFLAG_PROMISCUOUS, | |
| 1000, | |
| NULL, | |
| errbuf | |
| )) == NULL) | |
| { | |
| fprintf(stderr, "\nUnable to open the adapter. %s is not supported by WinPcap\n", argv[1]); | |
| return 0; | |
| } | |
| // dst mac | |
| memset(packet, 0xff, 6); | |
| // memcpy(packet, dst_mac, 6); | |
| // src mac | |
| memcpy(packet + 6, src_mac, 6); | |
| // WOL protocol | |
| packet[12] = 0x08; | |
| packet[13] = 0x42; | |
| // sync stream | |
| memset(packet + 14, 0xff, 6); | |
| int baseidx = 20; | |
| for (int i = 0; i < 16; ++i) | |
| { | |
| memcpy(packet + baseidx, dst_mac, 6); | |
| baseidx += 6; | |
| } | |
| if (pcap_sendpacket(fp, packet, baseidx) != 0) | |
| { | |
| fprintf(stderr, "\nError sending the packet: %s\n", pcap_geterr(fp)); | |
| return 0; | |
| } | |
| std::cout << "Done\n"; | |
| } |
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