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-.\" $OpenBSD: rmp.4,v 1.3 2000/03/02 14:46:46 todd Exp $
-.\" Copyright (c) 1990, 1991 The Regents of the University of California.
-.\" All rights reserved.
-.\"
-.\" This code is derived from software contributed to Berkeley by
-.\" the Systems Programming Group of the University of Utah Computer
-.\" Science Department.
-.\" 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.
-.\"
-.\" from: @(#)rmp.4 5.2 (Berkeley) 3/27/91
-.\"
-.Dd March 27, 1991
-.Dt RMP 4 hp300
-.Os
-.Sh NAME
-.Nm rmp
-.Nd
-.Tn HP
-Remote Maintenance Protocol Family
-.Sh SYNOPSIS
-.Cd "options RMP"
-.Fd #include <sys/types.h>
-.Fd #include <sys/socket.h>
-.Fd #include <netrmp/rmp.h>
-.Fd #include <netrmp/rmp_var.h>
-.Ft int
-.Fn socket AF_RMP SOCK_RAW proto
-.Sh DESCRIPTION
-Hewlett-Packard's Remote Maintenance Protocol family is a collection
-of protocols layered atop
-.Tn IEEE 802.3 .
-The current implementation of the RMP family provides protocol support only
-for the
-.Dv SOCK_RAW
-socket type.
-As a result,
-.Xr sendto 2
-and
-.Xr recvfrom 2
-must be used to send and
-receive
-.Tn RMP
-packets.
-.Pp
-The format of an
-.Tn RMP
-packet is defined in the include file
-.Aq Pa netrmp/rmp_var.h .
-The
-.Tn RMP
-packet arrives encapsulated in an
-.Pf ( Tn HP
-extended)
-.Tn IEEE 802.2
-packet.
-The
-.Tn IEEE 802.2
-packet
-is preceded by the kernel address of an
-.Ar ifnet struct
-which is used to `route' a packet out the same interface it
-arrived on.
-Outgoing packets are encapsulated in a standard
-.Tn IEEE 802.3
-packet, while incoming packets have this information stripped away.
-.Sh ADDRESSING
-.Tn RMP
-.Pf ( Tn IEEE
-802.3) addresses are 6 octets in length (48 bytes).
-Sockets in the Remote Maintenance Protocol family use the following
-addressing structure:
-.Bd -literal -offset indent
-struct sockaddr_rmp {
- short srmp_family;
- u_char srmp_dhost[6];
-};
-.Ed
-.Sh PROTOCOLS
-The
-.Tn RMP
-protocol family supported by the operating system
-is currently comprised of the Boot Protocol
-.Pq Em proto= Ns Dv RMPPROTO_BOOT .
-Unfortunately, we have no documentation on the Remote Maintenance
-Protocol and only sketchy information about the Boot Protocol.
-.Sh SEE ALSO
-.Xr bind 2 ,
-.Xr recvfrom 2 ,
-.Xr sendto 2 ,
-.Xr socket 2 ,
-.Xr intro 4 ,
-.Xr rbootd 8
-.Rs
-.%T "An Advanced 4.3 BSD Interprocess Communication Tutorial"
-.Re
-.Sh HISTORY
-The
-.Nm
-protocol interface
-.Ud
-.Sh BUGS
-.Bl -bullet
-.It
-The
-.Tn HP ROM
-uses
-.Tn IEEE
-802.3 (as opposed to Ethernet) packets. While the
-kernel heuristically recognizes these packets, a more general mechanism
-for doing so should be provided.
-.It
-The
-.Tn HP ROM
-uses a multicast address when first trying to locate boot
-servers. While the Ethernet [sic] board is programmed to recognize
-this particular multicast address (9:0:9:0:0:4), a more general
-mechanism for doing so should be provided.
-.It
-The kernel supports only
-.Tn RAW
-sockets for the
-.Tn RMP
-protocol.
-This is either a bug or a feature, since the kernel is smaller at the
-price of greater complexity in the server.
-.It
-There is no support for
-.Xr bind Ns 'ing
-an address in the
-.Tn RMP
-domain.
-Something like an
-.Dv RMPADDR_ANY
-should be provided to prevent more than one
-.Xr rbootd
-server from running at the same time.
-.El