diff options
Diffstat (limited to 'networking/udhcp/packet.h')
| -rw-r--r-- | networking/udhcp/packet.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/networking/udhcp/packet.h b/networking/udhcp/packet.h new file mode 100644 index 0000000..f5859e8 --- /dev/null +++ b/networking/udhcp/packet.h @@ -0,0 +1,41 @@ +#ifndef _PACKET_H +#define _PACKET_H + +#include <netinet/udp.h> +#include <netinet/ip.h> + +struct dhcpMessage { + uint8_t op; + uint8_t htype; + uint8_t hlen; + uint8_t hops; + uint32_t xid; + uint16_t secs; + uint16_t flags; + uint32_t ciaddr; + uint32_t yiaddr; + uint32_t siaddr; + uint32_t giaddr; + uint8_t chaddr[16]; + uint8_t sname[64]; + uint8_t file[128]; + uint32_t cookie; + uint8_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); +uint16_t checksum(void *addr, int count); +int raw_packet(struct dhcpMessage *payload, uint32_t source_ip, int source_port, + uint32_t dest_ip, int dest_port, uint8_t *dest_arp, int ifindex); +int kernel_packet(struct dhcpMessage *payload, uint32_t source_ip, int source_port, + uint32_t dest_ip, int dest_port); + + +#endif |