1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copied from LiMon - BOOTP. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright 1994, 1995, 2000 Neil Russell. 5*4882a593Smuzhiyun * (See License) 6*4882a593Smuzhiyun * Copyright 2000 Paolo Scaffardi 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #ifndef __BOOTP_H__ 10*4882a593Smuzhiyun #define __BOOTP_H__ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #ifndef __NET_H__ 13*4882a593Smuzhiyun #include <net.h> 14*4882a593Smuzhiyun #endif /* __NET_H__ */ 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun /**********************************************************************/ 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun /* 19*4882a593Smuzhiyun * BOOTP header. 20*4882a593Smuzhiyun */ 21*4882a593Smuzhiyun #if defined(CONFIG_CMD_DHCP) 22*4882a593Smuzhiyun /* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */ 23*4882a593Smuzhiyun #define OPT_FIELD_SIZE 312 24*4882a593Smuzhiyun #if defined(CONFIG_BOOTP_VENDOREX) 25*4882a593Smuzhiyun extern u8 *dhcp_vendorex_prep(u8 *e); /*rtn new e after add own opts. */ 26*4882a593Smuzhiyun extern u8 *dhcp_vendorex_proc(u8 *e); /*rtn next e if mine,else NULL */ 27*4882a593Smuzhiyun #endif 28*4882a593Smuzhiyun #else 29*4882a593Smuzhiyun #define OPT_FIELD_SIZE 64 30*4882a593Smuzhiyun #endif 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun struct bootp_hdr { 33*4882a593Smuzhiyun u8 bp_op; /* Operation */ 34*4882a593Smuzhiyun # define OP_BOOTREQUEST 1 35*4882a593Smuzhiyun # define OP_BOOTREPLY 2 36*4882a593Smuzhiyun u8 bp_htype; /* Hardware type */ 37*4882a593Smuzhiyun # define HWT_ETHER 1 38*4882a593Smuzhiyun u8 bp_hlen; /* Hardware address length */ 39*4882a593Smuzhiyun # define HWL_ETHER 6 40*4882a593Smuzhiyun u8 bp_hops; /* Hop count (gateway thing) */ 41*4882a593Smuzhiyun u32 bp_id; /* Transaction ID */ 42*4882a593Smuzhiyun u16 bp_secs; /* Seconds since boot */ 43*4882a593Smuzhiyun u16 bp_spare1; /* Alignment */ 44*4882a593Smuzhiyun struct in_addr bp_ciaddr; /* Client IP address */ 45*4882a593Smuzhiyun struct in_addr bp_yiaddr; /* Your (client) IP address */ 46*4882a593Smuzhiyun struct in_addr bp_siaddr; /* Server IP address */ 47*4882a593Smuzhiyun struct in_addr bp_giaddr; /* Gateway IP address */ 48*4882a593Smuzhiyun u8 bp_chaddr[16]; /* Client hardware address */ 49*4882a593Smuzhiyun char bp_sname[64]; /* Server host name */ 50*4882a593Smuzhiyun char bp_file[128]; /* Boot file name */ 51*4882a593Smuzhiyun char bp_vend[OPT_FIELD_SIZE]; /* Vendor information */ 52*4882a593Smuzhiyun } __attribute__((packed)); 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun #define BOOTP_HDR_SIZE sizeof(struct bootp_hdr) 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun /**********************************************************************/ 57*4882a593Smuzhiyun /* 58*4882a593Smuzhiyun * Global functions and variables. 59*4882a593Smuzhiyun */ 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun /* bootp.c */ 62*4882a593Smuzhiyun extern u32 bootp_id; /* ID of cur BOOTP request */ 63*4882a593Smuzhiyun extern int bootp_try; 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun 66*4882a593Smuzhiyun /* Send a BOOTP request */ 67*4882a593Smuzhiyun void bootp_reset(void); 68*4882a593Smuzhiyun void bootp_request(void); 69*4882a593Smuzhiyun 70*4882a593Smuzhiyun /****************** DHCP Support *********************/ 71*4882a593Smuzhiyun void dhcp_request(void); 72*4882a593Smuzhiyun 73*4882a593Smuzhiyun /* DHCP States */ 74*4882a593Smuzhiyun typedef enum { INIT, 75*4882a593Smuzhiyun INIT_REBOOT, 76*4882a593Smuzhiyun REBOOTING, 77*4882a593Smuzhiyun SELECTING, 78*4882a593Smuzhiyun REQUESTING, 79*4882a593Smuzhiyun REBINDING, 80*4882a593Smuzhiyun BOUND, 81*4882a593Smuzhiyun RENEWING } dhcp_state_t; 82*4882a593Smuzhiyun 83*4882a593Smuzhiyun #define DHCP_DISCOVER 1 84*4882a593Smuzhiyun #define DHCP_OFFER 2 85*4882a593Smuzhiyun #define DHCP_REQUEST 3 86*4882a593Smuzhiyun #define DHCP_DECLINE 4 87*4882a593Smuzhiyun #define DHCP_ACK 5 88*4882a593Smuzhiyun #define DHCP_NAK 6 89*4882a593Smuzhiyun #define DHCP_RELEASE 7 90*4882a593Smuzhiyun 91*4882a593Smuzhiyun /**********************************************************************/ 92*4882a593Smuzhiyun 93*4882a593Smuzhiyun #endif /* __BOOTP_H__ */ 94