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new file mode 100644 |
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+#include "src/lib.h" |
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+ |
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+int send_wol(const char *interface, unsigned char *buf, int len) {
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+ struct sockaddr_ll sll; |
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+ struct ifreq ifr; |
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+ int sock, arp_source_ip, arp_target_ip; |
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+ |
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+ if((sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL))) < 0) {
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+ perror("socket");
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+ return 1; |
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+ } |
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+ |
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+ memset(&ifr, 0x00, sizeof(ifr)); |
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+ |
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+ strcpy(ifr.ifr_name, interface); |
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+ if(ioctl(sock, SIOCGIFINDEX, &ifr) < 0 ) {
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+ perror("ioctl ");
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+ return 1; |
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+ } |
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+ |
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+ memset(&sll, 0x00, sizeof(sll)); |
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+ sll.sll_family = PF_PACKET; |
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+ sll.sll_ifindex = ifr.ifr_ifindex; |
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+ sll.sll_protocol = htons(ETH_P_ALL); |
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+ |
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+ if(sendto(sock, buf, len, 0, |
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+ (struct sockaddr *)&sll, sizeof(sll)) < 0) {
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+ |
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+ perror("sendto ");
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+ } |
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+ |
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+ return 0; |
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+} |
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+ |
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+void make_ether_packet(char *buf, const char *dstmac) {
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+ struct ether_header *ether_header = (struct ether_header *)buf; |
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+ const char broadmac[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
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+ const char srcmac[6] = {0x00, 0x90, 0x27, 0x85, 0xcf, 0x01};
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+ |
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+ memcpy(ether_header->ether_dhost, broadmac, 6); |
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+ memcpy(ether_header->ether_shost, srcmac, 6); |
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+ |
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+ ether_header->ether_type = htons(0x0842); |
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+} |
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+ |
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+void make_wol_packet(char *buf, const char *dstmac) {
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+ int offset = 0; |
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+ const char broadmac[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
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+ |
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+ memcpy(buf, broadmac, sizeof(broadmac)); |
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+ |
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+ offset += sizeof(broadmac); |
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+ |
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+ for (int i=0; i<16; i++) {
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+ memcpy(buf + offset, dstmac, 6); |
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+ |
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+ offset += 6; |
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+ } |
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+} |
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new file mode 100644 |
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+#include <stdio.h> |
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+#include <string.h> |
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+#include <unistd.h> |
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+#include <sys/types.h> |
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+#include <sys/socket.h> |
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+#include <sys/ioctl.h> |
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+#include <linux/if.h> |
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+#include <linux/if_packet.h> |
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+#include <linux/if_ether.h> |
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+#include <netinet/in.h> |
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+#include <arpa/inet.h> |
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+ |
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+#ifndef __linux__ |
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+ #pragma pack(push, 1) |
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+#endif |
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+struct ether_header |
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+{
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+ uint8_t ether_dhost[6]; /* destination eth addr */ |
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+ uint8_t ether_shost[6]; /* source ether addr */ |
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+ uint16_t ether_type; /* packet type ID field */ |
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+} |
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+#ifndef __linux__ |
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+ ; |
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+ #pragma pack(pop) |
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+#else |
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+__attribute__ ((__packed__)); |
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+#endif |
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+ |
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+int send_wol(const char *interface, unsigned char *buf, int len); |
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+void make_wol_packet(char *buf, const char *dstmac); |
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+void make_ether_packet(char *buf, const char *dstmac); |
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new file mode 100644 |
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@@ -0,0 +1,30 @@ |
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+/*! |
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+ * @file main.c |
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+ * @author Kang IkSeon (ikseon1026@gmail.com) |
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+ * |
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+ * @internal |
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+ * Created: 2018년 01월 30일 |
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+ * Copyright: Copyright (c) 2018, Kang IkSeon |
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+ */ |
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+ |
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+#include <stdio.h> |
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+#include <stdint.h> |
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+ |
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+#include "src/lib.h" |
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+ |
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+#define PACKET_LEN 116 |
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+ |
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+int main() {
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+ int n, len; |
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+ unsigned char packet[PACKET_LEN]; |
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+ char dmac[] = {0x08, 0x62, 0x66, 0x7c, 0xed, 0x6c};
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+ |
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+ printf ("ether size : %zu\n", sizeof(struct ether_header));
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+ |
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+ make_ether_packet(packet, dmac); |
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+ make_wol_packet(packet + sizeof(struct ether_header), dmac); |
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+ |
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+ send_wol("enp0s25", packet, PACKET_LEN);
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+ |
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+ return 0; |
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+} |