added my responsibility for the `cpm' port

[unix-history] / sys / i386 / netboot / netboot.h

/**************************************************************************
NETBOOT -  BOOTP/TFTP Bootstrap Program

Author: Martin Renters
 Date: Dec/93

**************************************************************************/

#include <a.out.h>
#include <netdb.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/mount.h>
#include <net/if.h>
#include <nfs/nfsv2.h>
#include <nfs/nfsdiskless.h>

#ifndef DEFAULT_BOOTFILE
#define DEFAULT_BOOTFILE        "386bsd"
#endif

#ifndef MAX_TFTP_RETRIES
#define MAX_TFTP_RETRIES        20
#endif

#ifndef MAX_BOOTP_RETRIES
#define MAX_BOOTP_RETRIES       20
#endif

#ifndef MAX_ARP_RETRIES
#define MAX_ARP_RETRIES         20
#endif

#ifndef TIMEOUT                 /* Inter-packet retry in ticks 18/sec */
#define TIMEOUT                 20
#endif

#ifndef NULL
#define NULL    ((void *)0)
#endif

#define ETHER_ADDR_SIZE         6       /* Size of Ethernet address */
#define ETHER_HDR_SIZE          14      /* Size of ethernet header */

#define ARP_CLIENT      0
#define ARP_SERVER      1
#define ARP_GATEWAY     2
#define ARP_NS          3
#define MAX_ARP         ARP_NS+1

#define IP              0x0800
#define ARP             0x0806

#define BOOTP_SERVER    67
#define BOOTP_CLIENT    68
#define TFTP            69

#define IP_UDP          17
#define IP_BROADCAST    0xFFFFFFFF

#define ARP_REQUEST     1
#define ARP_REPLY       2

#define BOOTP_REQUEST   1
#define BOOTP_REPLY     2

#define TFTP_RRQ        1
#define TFTP_WRQ        2
#define TFTP_DATA       3
#define TFTP_ACK        4
#define TFTP_ERROR      5

#define TFTP_CODE_EOF   1
#define TFTP_CODE_MORE  2
#define TFTP_CODE_ERROR 3
#define TFTP_CODE_BOOT  4
#define TFTP_CODE_CFG   5

struct arptable_t {
       unsigned long ipaddr;
       unsigned char node[6];
} arptable[MAX_ARP];

struct arprequest {
       unsigned short hwtype;
       unsigned short protocol;
       char hwlen;
       char protolen;
       unsigned short opcode;
       char shwaddr[6];
       char sipaddr[4];
       char thwaddr[6];
       char tipaddr[4];
};

struct iphdr {
       char verhdrlen;
       char service;
       unsigned short len;
       unsigned short ident;
       unsigned short frags;
       char ttl;
       char protocol;
       unsigned short chksum;
       char src[4];
       char dest[4];
};

struct udphdr {
       unsigned short src;
       unsigned short dest;
       unsigned short len;
       unsigned short chksum;
};

struct bootp_t {
       struct iphdr ip;
       struct udphdr udp;
       char bp_op;
       char bp_htype;
       char bp_hlen;
       char bp_hops;
       unsigned long bp_xid;
       unsigned short bp_secs;
       unsigned short unused;
       char bp_ciaddr[4];
       char bp_yiaddr[4];
       char bp_siaddr[4];
       char bp_giaddr[4];
       char bp_hwaddr[16];
       char bp_sname[64];
       char bp_file[128];
       char bp_vend[64];
};

struct tftp_t {
       struct iphdr ip;
       struct udphdr udp;
       unsigned short opcode;
       union {
               char rrq[512];
               struct {
                       unsigned short block;
                       char download[512];
               } data;
               struct {
                       unsigned short block;
               } ack;
               struct {
                       unsigned short errcode;
                       char errmsg[512];
               } err;
       } u;
};
#define TFTP_MIN_PACKET_SIZE    (sizeof(struct iphdr) + sizeof(struct udphdr) + 4)

#ifdef oldstuff
static inline unsigned short htons(unsigned short in)
{
       return((in >> 8) | (in << 8));
}
#define ntohs htons

static inline unsigned long htonl(unsigned long in)
{
       return((in >> 24) | ((in >> 16) & 0x0000FF00) |
               ((in << 16) & 0x00FF0000) | (in << 24));
}
#define ntohl htonl
#endif

static inline unsigned char inb(a)
       unsigned short a;
{
       unsigned char d;
       asm volatile( "inb %1, %0" : "=a" (d) : "d" (a));
       return d;
}

static inline void outb(a,d)
       unsigned short a;
       unsigned char d;
{
       asm volatile( "outb %0, %1" : : "a" (d), "d" (a));
}