blob: 1a263ef8bab91126bfed9bdc9e24bb813632be92 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
#ifndef _PACKET_H
#define _PACKET_H
#include <netinet/udp.h>
#include <netinet/ip.h>
struct dhcpMessage {
u_int8_t op;
u_int8_t htype;
u_int8_t hlen;
u_int8_t hops;
u_int32_t xid;
u_int16_t secs;
u_int16_t flags;
u_int32_t ciaddr;
u_int32_t yiaddr;
u_int32_t siaddr;
u_int32_t giaddr;
u_int8_t chaddr[16];
u_int8_t sname[64];
u_int8_t file[128];
u_int32_t cookie;
u_int8_t options[308]; /* 312 - cookie */
};
struct udp_dhcp_packet {
struct iphdr ip;
struct udphdr udp;
struct dhcpMessage data;
};
void init_header(struct dhcpMessage *packet, char type);
int get_packet(struct dhcpMessage *packet, int fd);
u_int16_t checksum(void *addr, int count);
int raw_packet(struct dhcpMessage *payload, u_int32_t source_ip, int source_port,
u_int32_t dest_ip, int dest_port, unsigned char *dest_arp, int ifindex);
int kernel_packet(struct dhcpMessage *payload, u_int32_t source_ip, int source_port,
u_int32_t dest_ip, int dest_port);
#endif
|
