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grub/netboot/netboot.h
T
okuji be514997d2 add netboot support.
1999-09-14 06:55:57 +00:00

472 lines
11 KiB
C
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/**************************************************************************
NETBOOT - BOOTP/TFTP Bootstrap Program
Author: Martin Renters
Date: Dec/93
**************************************************************************/
#define NETBOOT32
#include "../stage2/shared.h"
#include "byteorder.h"
#include "io.h"
typedef unsigned long Address;
extern int _pending_key;
extern inline int getchar(void);
extern inline int getchar(void) {
int foo;
if (_pending_key == -1)
return getkey();
foo = _pending_key;
_pending_key = -1;
return foo;
}
extern inline int iskey(void);
extern inline int iskey(void) {
return _pending_key != -1 ? 1 : ((_pending_key = checkkey()) != -1);
}
#if 0 /*Edmund*/
#define bcmp __builtin_memcmp
#define memcpy(d,s,sz) bcopy((s),(d),(sz))
#else
#define bcopy(src, dest, n) memcpy(dest, src, n)
#define bzero(s, n) memset(s, 0, n)
#define bcmp(s1, s2, n) memcmp(s1, s2, n)
#endif
/* ANSI prototyping macro */
#ifdef __STDC__
#define P(x) x
#else
#define P(x) ()
#endif
#define ESC 0x1B
#ifndef DEFAULT_BOOTFILE
#define DEFAULT_BOOTFILE "/kernel"
#endif
#ifndef MAX_TFTP_RETRIES
#define MAX_TFTP_RETRIES 20
#endif
#ifndef MAX_BOOTP_RETRIES
#define MAX_BOOTP_RETRIES 20
#endif
#ifndef MAX_BOOTP_EXTLEN
#define MAX_BOOTP_EXTLEN 1024
#endif
#ifndef MAX_ARP_RETRIES
#define MAX_ARP_RETRIES 20
#endif
#ifndef MAX_RPC_RETRIES
#define MAX_RPC_RETRIES 20
#endif
#ifndef TIMEOUT /* Inter-packet retry in ticks 18/sec */
#define TIMEOUT 180
#endif
#ifndef NULL
#define NULL ((void *)0)
#endif
#define TRUE 1
#define FALSE 0
#define ETHER_ADDR_SIZE 6 /* Size of Ethernet address */
#define ETHER_HDR_SIZE 14 /* Size of ethernet header */
#define ETH_MIN_PACKET 64
#define ETH_MAX_PACKET 1518
#define VENDOR_NONE 0
#define VENDOR_WD 1
#define VENDOR_NOVELL 2
#define VENDOR_3COM 3
#define VENDOR_3C509 4
#define VENDOR_CS89x0 5
#define FLAG_PIO 0x01
#define FLAG_16BIT 0x02
#define FLAG_790 0x04
#define ARP_CLIENT 0
#define ARP_SERVER 1
#define ARP_GATEWAY 2
#define ARP_ROOTSERVER 3
#define ARP_SWAPSERVER 4
#define MAX_ARP ARP_SWAPSERVER+1
#define IP 0x0800
#define ARP 0x0806
#define BOOTP_SERVER 67
#define BOOTP_CLIENT 68
#define TFTP 69
#define SUNRPC 111
#define RPC_SOCKET 620 /* Arbitrary */
#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 TAG_LEN(p) (*((p)+1))
#define RFC1533_COOKIE 99, 130, 83, 99
#define RFC1533_PAD 0
#define RFC1533_NETMASK 1
#define RFC1533_TIMEOFFSET 2
#define RFC1533_GATEWAY 3
#define RFC1533_TIMESERVER 4
#define RFC1533_IEN116NS 5
#define RFC1533_DNS 6
#define RFC1533_LOGSERVER 7
#define RFC1533_COOKIESERVER 8
#define RFC1533_LPRSERVER 9
#define RFC1533_IMPRESSSERVER 10
#define RFC1533_RESOURCESERVER 11
#define RFC1533_HOSTNAME 12
#define RFC1533_BOOTFILESIZE 13
#define RFC1533_MERITDUMPFILE 14
#define RFC1533_DOMAINNAME 15
#define RFC1533_SWAPSERVER 16
#define RFC1533_ROOTPATH 17
#define RFC1533_EXTENSIONPATH 18
#define RFC1533_IPFORWARDING 19
#define RFC1533_IPSOURCEROUTING 20
#define RFC1533_IPPOLICYFILTER 21
#define RFC1533_IPMAXREASSEMBLY 22
#define RFC1533_IPTTL 23
#define RFC1533_IPMTU 24
#define RFC1533_IPMTUPLATEAU 25
#define RFC1533_INTMTU 26
#define RFC1533_INTLOCALSUBNETS 27
#define RFC1533_INTBROADCAST 28
#define RFC1533_INTICMPDISCOVER 29
#define RFC1533_INTICMPRESPOND 30
#define RFC1533_INTROUTEDISCOVER 31
#define RFC1533_INTROUTESOLICIT 32
#define RFC1533_INTSTATICROUTES 33
#define RFC1533_LLTRAILERENCAP 34
#define RFC1533_LLARPCACHETMO 35
#define RFC1533_LLETHERNETENCAP 36
#define RFC1533_TCPTTL 37
#define RFC1533_TCPKEEPALIVETMO 38
#define RFC1533_TCPKEEPALIVEGB 39
#define RFC1533_NISDOMAIN 40
#define RFC1533_NISSERVER 41
#define RFC1533_NTPSERVER 42
#define RFC1533_VENDOR 43
#define RFC1533_NBNS 44
#define RFC1533_NBDD 45
#define RFC1533_NBNT 46
#define RFC1533_NBSCOPE 47
#define RFC1533_XFS 48
#define RFC1533_XDM 49
#define RFC1533_VENDOR_MAJOR 0
#define RFC1533_VENDOR_MINOR 0
#define RFC1533_VENDOR_MAGIC 128
#define RFC1533_VENDOR_ADDPARM 129
#define RFC1533_VENDOR_MNUOPTS 160
#define RFC1533_VENDOR_SELECTION 176
#define RFC1533_VENDOR_MOTD 184
#define RFC1533_VENDOR_NUMOFMOTD 8
#define RFC1533_VENDOR_IMG 192
#define RFC1533_VENDOR_NUMOFIMG 16
#define RFC1533_END 255
#define BOOTP_VENDOR_LEN 64
#define TFTP_DEFAULTSIZE_PACKET 512
#define TFTP_MAX_PACKET 1432 /* 512 */
#define TFTP_RRQ 1
#define TFTP_WRQ 2
#define TFTP_DATA 3
#define TFTP_ACK 4
#define TFTP_ERROR 5
#define TFTP_OACK 6
#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
#define PROG_PORTMAP 100000
#define PROG_NFS 100003
#define PROG_MOUNT 100005
#define MSG_CALL 0
#define MSG_REPLY 1
#define PORTMAP_LOOKUP 3
#define MOUNT_ADDENTRY 1
#define MOUNT_UMNTALL 4
#define NFS_LOOKUP 4
#define NFS_READ 6
#define NFS_READ_SIZE 1024
#define AWAIT_ARP 0
#define AWAIT_BOOTP 1
#define AWAIT_TFTP 2
#define AWAIT_RPC 3
struct arptable_t {
unsigned long ipaddr;
unsigned char node[6];
};
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[BOOTP_VENDOR_LEN];
};
struct bootpd_t {
struct bootp_t bootp_reply;
unsigned char bootp_extension[MAX_BOOTP_EXTLEN];
};
struct tftp_t {
struct iphdr ip;
struct udphdr udp;
unsigned short opcode;
union {
char rrq[TFTP_DEFAULTSIZE_PACKET];
struct {
unsigned short block;
char download[TFTP_MAX_PACKET];
} data;
struct {
unsigned short block;
} ack;
struct {
unsigned short errcode;
char errmsg[TFTP_DEFAULTSIZE_PACKET];
} err;
struct {
char data[TFTP_DEFAULTSIZE_PACKET+2];
} oack;
} u;
};
struct rpc_t {
struct iphdr ip;
struct udphdr udp;
union {
char data[1400];
struct {
long id;
long type;
long rstatus;
long verifier;
long v2;
long astatus;
long data[1];
} reply;
} u;
};
#define TFTP_MIN_PACKET (sizeof(struct iphdr) + sizeof(struct udphdr) + 4)
/***************************************************************************
RPC Functions
***************************************************************************/
#define PUTLONG(val) {\
register int lval = val; \
*(rpcptr++) = ((lval) >> 24); \
*(rpcptr++) = ((lval) >> 16); \
*(rpcptr++) = ((lval) >> 8); \
*(rpcptr++) = (lval); \
rpclen+=4; }
#if 0 /* XXX */
/***************************************************************************
External prototypes
***************************************************************************/
/* main.c */
extern void load P((void));
extern int load_linux P((int root_mount_port,int swap_mount_port,
int root_nfs_port,char *kernel_handle));
extern int linux_tftp P((unsigned int block,unsigned char *data,int len));
extern int tftpkernel P((unsigned char *, int, int, int));
extern int tftp P((char *name, int (*)(unsigned char *, int, int, int)));
extern int bootp P((void));
extern int udp_transmit P((unsigned long destip, unsigned int srcsock,
unsigned int destsock, int len, char *buf));
extern int await_reply P((int type, int ival, char *ptr));
extern void default_netmask P((void));
extern int decode_rfc1533 P((unsigned char *, int, int, int));
extern unsigned short ipchksum P((unsigned short *, int len));
extern void convert_ipaddr P((char *, char *));
extern void rfc951_sleep P((int));
/* bootmenu.c */
extern int execute P((char *string));
extern void bootmenu P((void));
extern void show_motd P((void));
extern void parse_menuopts P((char *,int));
extern int getoptvalue P((char **, int *, int *));
extern void selectImage P((char **, char *, struct arptable_t *));
/* linuxloader.c */
extern char *linux_add_cmdline P((char *string));
/* rpc.c */
extern int rpclookup P((int addr, int prog, int ver));
extern int nfs_mount P((int server, int port, char *path, char *fh));
extern int nfs_umountall P((int server, int port));
extern int nfs_lookup P((int server, int port, char *fh, char *path, char *file_fh));
extern int nfs_read P((int server, int port, char *fh, int offset, int len, char *buffer));
extern void rpc_err P((struct rpc_t *rpc));
extern void nfs_err P((int err));
/* misc.c */
#if 0 /*Edmund*/
extern void bcopy P((void *src, void *dst, int cnt));
extern void bzero P((void *dst, int cnt));
extern int bcmp P((void *src, void *dst, int cnt));
#endif
extern int strcasecmp P((char *a, char *b));
extern char *substr P((char *a, char *b));
extern int getdec P((char **));
extern void twiddle P((void));
extern void printf(); /* old style to avoid varargs */
extern char *sprintf();
extern int setip P((char *p, unsigned long *i));
extern void gateA20 P((void));
/* start*.S */
extern int getchar P((void));
extern void putchar P((int));
extern int iskey P((void));
extern int getshift P((void));
extern unsigned short memsize P((void));
extern void disk_init P((void));
extern short disk_read P((int drv,int c,int h,int s,char *buf));
extern void start_linux P((void));
extern void xstart P((unsigned long, unsigned long, unsigned long));
extern long currticks P((void));
extern int setjmp P((void *jmpbuf));
extern void longjmp P((void *jmpbuf, int where));
extern void exit P((int status));
/* ansiesc.c */
extern void ansi_reset P((void));
extern void enable_cursor P((int));
/* md5.c */
extern void md5_put P((unsigned int ch));
extern void md5_done P((unsigned char *buf));
/* floppy.c */
extern int bootdisk P((int dev,int part));
#endif
/***************************************************************************
External variables
***************************************************************************/
/* main.c */
extern char *kernel;
extern char kernel_buf[];
extern struct nfs_diskless nfsdiskless;
extern int hostnamelen;
extern unsigned long netmask;
extern int jmp_bootmenu[10];
extern char kernel_buf[128];
extern struct bootpd_t bootp_data;
extern struct arptable_t arptable[MAX_ARP];
extern char *imagelist[RFC1533_VENDOR_NUMOFIMG];
extern char *motd[RFC1533_VENDOR_NUMOFMOTD];
extern int menutmo,menudefault;
extern unsigned char *end_of_rfc1533;
/* bootmenu.c */
/* linuxloader.c */
/* rpc.c */
extern int rpc_id;
/* created by linker */
extern char _edata[], _end[];
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
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