247 lines
4.4 KiB
C
247 lines
4.4 KiB
C
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/**************************************************************************
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NETBOOT - BOOTP/TFTP Bootstrap Program
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Author: Martin Renters
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Date: Dec/93
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**************************************************************************/
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#include <sys/types.h>
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#include <a.out.h>
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#include <netdb.h>
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/mount.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <nfs/nfsv2.h>
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#include <nfs/nfsdiskless.h>
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#include <machine/bootinfo.h>
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#define ESC 0x1B
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#ifndef DEFAULT_BOOTFILE
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#define DEFAULT_BOOTFILE "kernel"
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#endif
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#ifndef MAX_TFTP_RETRIES
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#define MAX_TFTP_RETRIES 20
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#endif
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#ifndef MAX_BOOTP_RETRIES
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#define MAX_BOOTP_RETRIES 20
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#endif
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#ifndef MAX_ARP_RETRIES
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#define MAX_ARP_RETRIES 20
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#endif
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#ifndef MAX_RPC_RETRIES
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#define MAX_RPC_RETRIES 20
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#endif
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#ifndef TIMEOUT /* Inter-packet retry in ticks 18/sec */
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#define TIMEOUT 20
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#endif
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#ifndef NULL
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#define NULL ((void *)0)
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#endif
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#define ETHER_ADDR_SIZE 6 /* Size of Ethernet address */
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#define ETHER_HDR_SIZE 14 /* Size of ethernet header */
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#define ARP_CLIENT 0
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#define ARP_SERVER 1
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#define ARP_GATEWAY 2
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#define ARP_NS 3
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#define ARP_ROOTSERVER 4
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#define ARP_SWAPSERVER 5
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#define MAX_ARP ARP_SWAPSERVER+1
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#define IP 0x0800
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#define ARP 0x0806
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#define BOOTP_SERVER 67
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#define BOOTP_CLIENT 68
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#define TFTP 69
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#define SUNRPC 111
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#define RPC_SOCKET 620 /* Arbitrary */
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#define IP_UDP 17
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#define IP_BROADCAST 0xFFFFFFFF
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#define ARP_REQUEST 1
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#define ARP_REPLY 2
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#define BOOTP_REQUEST 1
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#define BOOTP_REPLY 2
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#define TAG_LEN(p) (*((p)+1))
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#define RFC1048_COOKIE { 99, 130, 83, 99 }
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#define RFC1048_PAD 0
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#define RFC1048_NETMASK 1
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#define RFC1048_GATEWAY 3
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#define RFC1048_HOSTNAME 12
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#define RFC1048_END 255
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#define BOOTP_VENDOR_LEN 64
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#define TFTP_RRQ 1
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#define TFTP_WRQ 2
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#define TFTP_DATA 3
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#define TFTP_ACK 4
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#define TFTP_ERROR 5
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#define TFTP_CODE_EOF 1
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#define TFTP_CODE_MORE 2
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#define TFTP_CODE_ERROR 3
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#define TFTP_CODE_BOOT 4
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#define TFTP_CODE_CFG 5
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#define PROG_PORTMAP 100000
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#define PROG_NFS 100003
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#define PROG_MOUNT 100005
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#define MSG_CALL 0
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#define MSG_REPLY 1
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#define PORTMAP_LOOKUP 3
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#define MOUNT_ADDENTRY 1
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#define NFS_LOOKUP 4
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#define NFS_READ 6
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#define NFS_READ_SIZE 1024
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#define AWAIT_ARP 0
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#define AWAIT_BOOTP 1
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#define AWAIT_TFTP 2
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#define AWAIT_RPC 3
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struct arptable_t {
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unsigned long ipaddr;
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unsigned char node[6];
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} arptable[MAX_ARP];
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struct arprequest {
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unsigned short hwtype;
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unsigned short protocol;
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char hwlen;
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char protolen;
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unsigned short opcode;
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char shwaddr[6];
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char sipaddr[4];
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char thwaddr[6];
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char tipaddr[4];
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};
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struct iphdr {
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char verhdrlen;
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char service;
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unsigned short len;
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unsigned short ident;
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unsigned short frags;
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char ttl;
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char protocol;
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unsigned short chksum;
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char src[4];
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char dest[4];
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};
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struct udphdr {
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unsigned short src;
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unsigned short dest;
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unsigned short len;
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unsigned short chksum;
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};
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struct bootp_t {
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struct iphdr ip;
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struct udphdr udp;
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char bp_op;
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char bp_htype;
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char bp_hlen;
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char bp_hops;
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unsigned long bp_xid;
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unsigned short bp_secs;
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unsigned short unused;
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char bp_ciaddr[4];
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char bp_yiaddr[4];
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char bp_siaddr[4];
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char bp_giaddr[4];
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char bp_hwaddr[16];
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char bp_sname[64];
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char bp_file[128];
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char bp_vend[64];
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};
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struct tftp_t {
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struct iphdr ip;
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struct udphdr udp;
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unsigned short opcode;
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union {
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char rrq[512];
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struct {
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unsigned short block;
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char download[512];
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} data;
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struct {
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unsigned short block;
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} ack;
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struct {
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unsigned short errcode;
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char errmsg[512];
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} err;
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} u;
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};
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struct rpc_t {
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struct iphdr ip;
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struct udphdr udp;
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union {
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char data[1400];
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struct {
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long id;
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long type;
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long rstatus;
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long verifier;
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long v2;
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long astatus;
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long data[1];
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} reply;
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} u;
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};
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#define TFTP_MIN_PACKET_SIZE (sizeof(struct iphdr) + sizeof(struct udphdr) + 4)
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static inline unsigned char inb(a)
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unsigned short a;
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{
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unsigned char d;
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asm volatile( "inb %1, %0" : "=a" (d) : "d" (a));
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return d;
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}
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static inline void outb(a,d)
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unsigned short a;
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unsigned char d;
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{
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asm volatile( "outb %0, %1" : : "a" (d), "d" (a));
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}
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/***************************************************************************
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RPC Functions
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***************************************************************************/
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#define PUTLONG(val) {\
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register int lval = val; \
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*(rpcptr++) = ((lval) >> 24); \
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*(rpcptr++) = ((lval) >> 16); \
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*(rpcptr++) = ((lval) >> 8); \
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*(rpcptr++) = (lval); \
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rpclen+=4; }
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char *sprintf();
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