C++ (Cpp) make_eth_header Beispiele

Beispiel #1

Datei: module_dns.c Projekt: Fale/zmap

int dns_init_perthread(void* buf, macaddr_t *src,
		macaddr_t *gw, UNUSED port_h_t dst_port,
		UNUSED void **arg_ptr) 
{
	memset(buf, 0, MAX_PACKET_SIZE);
	
	struct ether_header *eth_header = (struct ether_header *) buf;
	make_eth_header(eth_header, src, gw);
	
	struct ip *ip_header = (struct ip*)(&eth_header[1]);
	uint16_t len = htons(sizeof(struct ip) + sizeof(struct udphdr) + 
		dns_packet_len);
	make_ip_header(ip_header, IPPROTO_UDP, len);

	struct udphdr *udp_header = (struct udphdr*)(&ip_header[1]);
	len = sizeof(struct udphdr) + dns_packet_len;
	make_udp_header(udp_header, zconf.target_port, len);

	char* payload = (char*)(&udp_header[1]);

	module_dns.packet_length = sizeof(struct ether_header) + sizeof(struct ip)
				+ sizeof(struct udphdr) + dns_packet_len;
	assert(module_dns.packet_length <= MAX_PACKET_SIZE);

	memcpy(payload, dns_packet, dns_packet_len);

	return EXIT_SUCCESS;
}

Beispiel #2

Datei: module_tcp_synscan.c Projekt: prelongs/zmapscan

int synscan_init_perthread(void* buf, macaddr_t *src,
		macaddr_t *gw, port_h_t dst_port)
{
	memset(buf, 0, MAX_PACKET_SIZE);
	struct ether_header *eth_header = (struct ether_header *) buf;
	make_eth_header(eth_header, src, gw);
	struct ip *ip_header = (struct ip*)(&eth_header[1]);
	uint16_t len = htons(sizeof(struct ip) + sizeof(struct tcphdr));
	make_ip_header(ip_header, IPPROTO_TCP, len);
	struct tcphdr *tcp_header = (struct tcphdr*)(&ip_header[1]);
	make_tcp_header(tcp_header, dst_port);
	return EXIT_SUCCESS;
}