245 lines
8.9 KiB
C
245 lines
8.9 KiB
C
/*
|
|
* Copyright (c) 1988, 1992 The University of Utah and the Center
|
|
* for Software Science (CSS).
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* the Center for Software Science of the University of Utah Computer
|
|
* Science Department. CSS requests users of this software to return
|
|
* to css-dist@cs.utah.edu any improvements that they make and grant
|
|
* CSS redistribution rights.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)rmp_var.h 8.1 (Berkeley) 6/4/93
|
|
*
|
|
* Utah $Hdr: rmp_var.h 3.1 92/07/06$
|
|
* Author: Jeff Forys, University of Utah CSS
|
|
*/
|
|
|
|
/*
|
|
* Possible values for "rmp_type" fields.
|
|
*/
|
|
|
|
#define RMP_BOOT_REQ 1 /* boot request packet */
|
|
#define RMP_BOOT_REPL 129 /* boot reply packet */
|
|
#define RMP_READ_REQ 2 /* read request packet */
|
|
#define RMP_READ_REPL 130 /* read reply packet */
|
|
#define RMP_BOOT_DONE 3 /* boot complete packet */
|
|
|
|
/*
|
|
* Useful constants.
|
|
*/
|
|
|
|
#define RMP_VERSION 2 /* protocol version */
|
|
#define RMP_TIMEOUT 600 /* timeout connection after ten minutes */
|
|
#define RMP_PROBESID 0xffff /* session ID for probes */
|
|
#define RMP_HOSTLEN 13 /* max length of server's name */
|
|
#define RMP_MACHLEN 20 /* length of machine type field */
|
|
|
|
/*
|
|
* RMP error codes
|
|
*/
|
|
|
|
#define RMP_E_OKAY 0
|
|
#define RMP_E_EOF 2 /* read reply: returned end of file */
|
|
#define RMP_E_ABORT 3 /* abort operation */
|
|
#define RMP_E_BUSY 4 /* boot reply: server busy */
|
|
#define RMP_E_TIMEOUT 5 /* lengthen time out (not implemented) */
|
|
#define RMP_E_NOFILE 16 /* boot reply: file does not exist */
|
|
#define RMP_E_OPENFILE 17 /* boot reply: file open failed */
|
|
#define RMP_E_NODFLT 18 /* boot reply: default file does not exist */
|
|
#define RMP_E_OPENDFLT 19 /* boot reply: default file open failed */
|
|
#define RMP_E_BADSID 25 /* read reply: bad session ID */
|
|
#define RMP_E_BADPACKET 27 /* Bad packet detected */
|
|
|
|
/*
|
|
* RMPDATALEN is the maximum number of data octets that can be stuffed
|
|
* into an RMP packet. This excludes the 802.2 LLC w/HP extensions.
|
|
*/
|
|
#define RMPDATALEN (RMP_MAX_PACKET - (sizeof(struct hp_hdr) + \
|
|
sizeof(struct hp_llc)))
|
|
|
|
/*
|
|
* Define sizes of packets we send. Boot and Read replies are variable
|
|
* in length depending on the length of `s'.
|
|
*
|
|
* Also, define how much space `restofpkt' can take up for outgoing
|
|
* Boot and Read replies. Boot Request packets are effectively
|
|
* limited to 255 bytes due to the preceding 1-byte length field.
|
|
*/
|
|
|
|
#define RMPBOOTSIZE(s) (sizeof(struct hp_hdr) + sizeof(struct hp_llc) + \
|
|
sizeof(struct rmp_boot_repl) + s - sizeof(restofpkt))
|
|
#define RMPREADSIZE(s) (sizeof(struct hp_hdr) + sizeof(struct hp_llc) + \
|
|
sizeof(struct rmp_read_repl) + s - sizeof(restofpkt) \
|
|
- sizeof(u_char))
|
|
#define RMPDONESIZE (sizeof(struct hp_hdr) + sizeof(struct hp_llc) + \
|
|
sizeof(struct rmp_boot_done))
|
|
#define RMPBOOTDATA 255
|
|
#define RMPREADDATA (RMPDATALEN - \
|
|
(2*sizeof(u_char)+sizeof(u_short)+sizeof(u_word)))
|
|
|
|
/*
|
|
* This protocol defines some field sizes as "rest of ethernet packet".
|
|
* There is no easy way to specify this in C, so we use a one character
|
|
* field to denote it, and index past it to the end of the packet.
|
|
*/
|
|
|
|
typedef char restofpkt;
|
|
|
|
/*
|
|
* Due to the RMP packet layout, we'll run into alignment problems
|
|
* on machines that cant access words on half-word boundaries. If
|
|
* you know that your machine does not suffer from this problem,
|
|
* add it to the hp300 #define below.
|
|
*
|
|
* The following macros are used to deal with this problem:
|
|
* WORDZE(w) Return True if u_word `w' is zero, False otherwise.
|
|
* ZEROWORD(w) Set u_word `w' to zero.
|
|
* COPYWORD(w1,w2) Copy u_word `w1' to `w2'.
|
|
* GETWORD(w,i) Copy u_word `w' into int `i'.
|
|
* PUTWORD(i,w) Copy int `i' into u_word `w'.
|
|
*
|
|
* N.B. We do not support little endian alignment-challenged machines.
|
|
*/
|
|
#if defined(vax) || defined(tahoe) || defined(hp300)
|
|
|
|
typedef u_int u_word;
|
|
|
|
#define WORDZE(w) ((w) == 0)
|
|
#define ZEROWORD(w) (w) = 0
|
|
#define COPYWORD(w1,w2) (w2) = (w1)
|
|
#define GETWORD(w, i) (i) = (w)
|
|
#define PUTWORD(i, w) (w) = (i)
|
|
|
|
#else
|
|
|
|
#define _WORD_HIGHPART 0 /* XXX: assume Big Endian for now */
|
|
#define _WORD_LOWPART 1
|
|
|
|
typedef struct _uword { u_short val[2]; } u_word;
|
|
|
|
#define WORDZE(w) \
|
|
((w.val[_WORD_HIGHPART] == 0) && (w.val[_WORD_LOWPART] == 0))
|
|
#define ZEROWORD(w) \
|
|
(w).val[_WORD_HIGHPART] = (w).val[_WORD_LOWPART] = 0
|
|
#define COPYWORD(w1, w2) \
|
|
{ (w2).val[_WORD_HIGHPART] = (w1).val[_WORD_HIGHPART]; \
|
|
(w2).val[_WORD_LOWPART] = (w1).val[_WORD_LOWPART]; \
|
|
}
|
|
#define GETWORD(w, i) \
|
|
(i) = (((u_int)(w).val[_WORD_HIGHPART]) << 16) | (w).val[_WORD_LOWPART]
|
|
#define PUTWORD(i, w) \
|
|
{ (w).val[_WORD_HIGHPART] = (u_short) (((i) >> 16) & 0xffff); \
|
|
(w).val[_WORD_LOWPART] = (u_short) (i & 0xffff); \
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Packet structures.
|
|
*/
|
|
|
|
struct rmp_raw { /* generic RMP packet */
|
|
u_char rmp_type; /* packet type */
|
|
u_char rmp_rawdata[RMPDATALEN-1];
|
|
};
|
|
|
|
struct rmp_boot_req { /* boot request */
|
|
u_char rmp_type; /* packet type (RMP_BOOT_REQ) */
|
|
u_char rmp_retcode; /* return code (0) */
|
|
u_word rmp_seqno; /* sequence number (real time clock) */
|
|
u_short rmp_session; /* session id (normally 0) */
|
|
u_short rmp_version; /* protocol version (RMP_VERSION) */
|
|
char rmp_machtype[RMP_MACHLEN]; /* machine type */
|
|
u_char rmp_flnmsize; /* length of rmp_flnm */
|
|
restofpkt rmp_flnm; /* name of file to be read */
|
|
};
|
|
|
|
struct rmp_boot_repl { /* boot reply */
|
|
u_char rmp_type; /* packet type (RMP_BOOT_REPL) */
|
|
u_char rmp_retcode; /* return code (normally 0) */
|
|
u_word rmp_seqno; /* sequence number (from boot req) */
|
|
u_short rmp_session; /* session id (generated) */
|
|
u_short rmp_version; /* protocol version (RMP_VERSION) */
|
|
u_char rmp_flnmsize; /* length of rmp_flnm */
|
|
restofpkt rmp_flnm; /* name of file (from boot req) */
|
|
};
|
|
|
|
struct rmp_read_req { /* read request */
|
|
u_char rmp_type; /* packet type (RMP_READ_REQ) */
|
|
u_char rmp_retcode; /* return code (0) */
|
|
u_word rmp_offset; /* file relative byte offset */
|
|
u_short rmp_session; /* session id (from boot repl) */
|
|
u_short rmp_size; /* max no of bytes to send */
|
|
};
|
|
|
|
struct rmp_read_repl { /* read reply */
|
|
u_char rmp_type; /* packet type (RMP_READ_REPL) */
|
|
u_char rmp_retcode; /* return code (normally 0) */
|
|
u_word rmp_offset; /* byte offset (from read req) */
|
|
u_short rmp_session; /* session id (from read req) */
|
|
restofpkt rmp_data; /* data (max size from read req) */
|
|
u_char rmp_unused; /* padding to 16-bit boundary */
|
|
};
|
|
|
|
struct rmp_boot_done { /* boot complete */
|
|
u_char rmp_type; /* packet type (RMP_BOOT_DONE) */
|
|
u_char rmp_retcode; /* return code (0) */
|
|
u_word rmp_unused; /* not used (0) */
|
|
u_short rmp_session; /* session id (from read repl) */
|
|
};
|
|
|
|
struct rmp_packet {
|
|
struct hp_hdr hp_hdr;
|
|
struct hp_llc hp_llc;
|
|
union {
|
|
struct rmp_boot_req rmp_brq; /* boot request */
|
|
struct rmp_boot_repl rmp_brpl; /* boot reply */
|
|
struct rmp_read_req rmp_rrq; /* read request */
|
|
struct rmp_read_repl rmp_rrpl; /* read reply */
|
|
struct rmp_boot_done rmp_done; /* boot complete */
|
|
struct rmp_raw rmp_raw; /* raw data */
|
|
} rmp_proto;
|
|
};
|
|
|
|
/*
|
|
* Make life easier...
|
|
*/
|
|
|
|
#define r_type rmp_proto.rmp_raw.rmp_type
|
|
#define r_data rmp_proto.rmp_raw.rmp_data
|
|
#define r_brq rmp_proto.rmp_brq
|
|
#define r_brpl rmp_proto.rmp_brpl
|
|
#define r_rrq rmp_proto.rmp_rrq
|
|
#define r_rrpl rmp_proto.rmp_rrpl
|
|
#define r_done rmp_proto.rmp_done
|