| #ifndef BOOTP_PACKET_H |
| #define BOOTP_PACKET_H |
| |
| #include <sys/uio.h> |
| |
| struct netdev; |
| |
| /* packet ops */ |
| #define BOOTP_REQUEST 1 |
| #define BOOTP_REPLY 2 |
| |
| /* your basic bootp packet */ |
| struct bootp_hdr { |
| 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]; |
| char server_name[64]; |
| char boot_file[128]; |
| /* 312 bytes of extensions */ |
| }; |
| |
| /* |
| * memory size of BOOTP Vendor Extensions/DHCP Options for receiving |
| * |
| * generic_ether_mtu:1500, min_sizeof(ip_hdr):20, sizeof(udp_hdr):8 |
| * |
| * #define BOOTP_EXTS_SIZE (1500 - 20 - 8 - sizeof(struct bootp_hdr)) |
| */ |
| /* larger size for backward compatibility of ipconfig */ |
| #define BOOTP_EXTS_SIZE 1500 |
| |
| /* minimum length of BOOTP/DHCP packet on sending */ |
| #define BOOTP_MIN_LEN 300 |
| |
| #endif /* BOOTP_PACKET_H */ |
