[apple/xnu.git] / bsd / nfs / nfsdiskless.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
 * Copyright (c) 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Rick Macklem at The University of Guelph.
 *
 * 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.
 *
 *	@(#)nfsdiskless.h	8.2 (Berkeley) 3/30/95
 * FreeBSD-Id: nfsdiskless.h,v 1.10 1997/09/07 12:56:46 bde Exp $
 */


#ifndef _NFS_NFSDISKLESS_H_
#define _NFS_NFSDISKLESS_H_

/*
 * Structure that must be initialized for a diskless nfs client.
 * This structure is used by nfs_mountroot() to set up the root and swap
 * vnodes plus do a partial ifconfig(8) and route(8) so that the critical net
 * interface can communicate with the server.
 * The primary bootstrap is expected to fill in the appropriate fields before
 * starting the kernel. Whether or not the swap area is nfs mounted is
 * determined by the value in swdevt[0]. (equal to NODEV --> swap over nfs)
 * Currently only works for AF_INET protocols.
 * NB: All fields are stored in net byte order to avoid hassles with
 * client/server byte ordering differences.
 */

/*
 * I have defined a new structure that can handle an NFS Version 3 file handle
 * but the kernel still expects the old Version 2 one to be provided. The
 * changes required in nfs_vfsops.c for using the new are documented there in
 * comments. (I felt that breaking network booting code by changing this
 * structure would not be prudent at this time, since almost all servers are
 * still Version 2 anyhow.)
 */
struct nfsv3_diskless {
	struct ifaliasreq myif;			/* Default interface */
	struct sockaddr_in mygateway;		/* Default gateway */
	struct nfs_args	swap_args;		/* Mount args for swap file */
	int		swap_fhsize;		/* Size of file handle */
	u_char		swap_fh[NFSX_V3FHMAX];	/* Swap file's file handle */
	struct sockaddr_in swap_saddr;		/* Address of swap server */
	char		swap_hostnam[MNAMELEN];	/* Host name for mount pt */
	int		swap_nblks;		/* Size of server swap file */
	struct ucred	swap_ucred;		/* Swap credentials */
	struct nfs_args	root_args;		/* Mount args for root fs */
	int		root_fhsize;		/* Size of root file handle */
	u_char		root_fh[NFSX_V3FHMAX];	/* File handle of root dir */
	struct sockaddr_in root_saddr;		/* Address of root server */
	char		root_hostnam[MNAMELEN];	/* Host name for mount pt */
	long		root_time;		/* Timestamp of root fs */
	char		my_hostnam[MAXHOSTNAMELEN]; /* Client host name */
};

struct nfs_dlmount {
	struct sockaddr_in ndm_saddr;  		/* Address of file server */
	char		ndm_host[MNAMELEN]; 	/* Host name for mount pt */
	u_char		ndm_fh[NFSX_V2FH]; 		/* The file's file handle */
};

/*
 * Old arguments to mount NFS
 */
struct onfs_args {
	struct sockaddr	*addr;		/* file server address */
	int		addrlen;	/* length of address */
	int		sotype;		/* Socket type */
	int		proto;		/* and Protocol */
	u_char		*fh;		/* File handle to be mounted */
	int		fhsize;		/* Size, in bytes, of fh */
	int		flags;		/* flags */
	int		wsize;		/* write size in bytes */
	int		rsize;		/* read size in bytes */
	int		readdirsize;	/* readdir size in bytes */
	int		timeo;		/* initial timeout in .1 secs */
	int		retrans;	/* times to retry send */
	int		maxgrouplist;	/* Max. size of group list */
	int		readahead;	/* # of blocks to readahead */
	int		leaseterm;	/* Term (sec) of lease */
	int		deadthresh;	/* Retrans threshold */
	char		*hostname;	/* server's name */
};

struct nfs_diskless {
	struct nfs_dlmount nd_root; 	/* Mount info for root */
	struct nfs_dlmount nd_private; 	/* Mount info for private */
};

#endif
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
	23	/*
	24	* Copyright (c) 1991, 1993
	25	* The Regents of the University of California. All rights reserved.
	26	*
	27	* This code is derived from software contributed to Berkeley by
	28	* Rick Macklem at The University of Guelph.
	29	*
	30	* Redistribution and use in source and binary forms, with or without
	31	* modification, are permitted provided that the following conditions
	32	* are met:
	33	* 1. Redistributions of source code must retain the above copyright
	34	* notice, this list of conditions and the following disclaimer.
	35	* 2. Redistributions in binary form must reproduce the above copyright
	36	* notice, this list of conditions and the following disclaimer in the
	37	* documentation and/or other materials provided with the distribution.
	38	* 3. All advertising materials mentioning features or use of this software
	39	* must display the following acknowledgement:
	40	* This product includes software developed by the University of
	41	* California, Berkeley and its contributors.
	42	* 4. Neither the name of the University nor the names of its contributors
	43	* may be used to endorse or promote products derived from this software
	44	* without specific prior written permission.
	45	*
	46	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	47	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	48	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	49	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	50	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	51	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	52	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	53	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	54	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	55	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	56	* SUCH DAMAGE.
	57	*
	58	* @(#)nfsdiskless.h 8.2 (Berkeley) 3/30/95
	59	* FreeBSD-Id: nfsdiskless.h,v 1.10 1997/09/07 12:56:46 bde Exp $
	60	*/
	61
	62
	63	#ifndef _NFS_NFSDISKLESS_H_
	64	#define _NFS_NFSDISKLESS_H_
65
66	/*
67	* Structure that must be initialized for a diskless nfs client.
68	* This structure is used by nfs_mountroot() to set up the root and swap
69	* vnodes plus do a partial ifconfig(8) and route(8) so that the critical net
70	* interface can communicate with the server.
71	* The primary bootstrap is expected to fill in the appropriate fields before
72	* starting the kernel. Whether or not the swap area is nfs mounted is
73	* determined by the value in swdevt[0]. (equal to NODEV --> swap over nfs)
74	* Currently only works for AF_INET protocols.
75	* NB: All fields are stored in net byte order to avoid hassles with
76	* client/server byte ordering differences.
77	*/
78
79	/*
80	* I have defined a new structure that can handle an NFS Version 3 file handle
81	* but the kernel still expects the old Version 2 one to be provided. The
82	* changes required in nfs_vfsops.c for using the new are documented there in
83	* comments. (I felt that breaking network booting code by changing this
84	* structure would not be prudent at this time, since almost all servers are
85	* still Version 2 anyhow.)
86	*/
87	struct nfsv3_diskless {
88	struct ifaliasreq myif; /* Default interface */
89	struct sockaddr_in mygateway; /* Default gateway */
90	struct nfs_args swap_args; /* Mount args for swap file */
91	int swap_fhsize; /* Size of file handle */
92	u_char swap_fh[NFSX_V3FHMAX]; /* Swap file's file handle */
93	struct sockaddr_in swap_saddr; /* Address of swap server */
94	char swap_hostnam[MNAMELEN]; /* Host name for mount pt */
95	int swap_nblks; /* Size of server swap file */
96	struct ucred swap_ucred; /* Swap credentials */
97	struct nfs_args root_args; /* Mount args for root fs */
98	int root_fhsize; /* Size of root file handle */
99	u_char root_fh[NFSX_V3FHMAX]; /* File handle of root dir */
100	struct sockaddr_in root_saddr; /* Address of root server */
101	char root_hostnam[MNAMELEN]; /* Host name for mount pt */
102	long root_time; /* Timestamp of root fs */
103	char my_hostnam[MAXHOSTNAMELEN]; /* Client host name */
104	};
105
106	struct nfs_dlmount {
107	struct sockaddr_in ndm_saddr; /* Address of file server */
108	char ndm_host[MNAMELEN]; /* Host name for mount pt */
109	u_char ndm_fh[NFSX_V2FH]; /* The file's file handle */
110	};
111
112	/*
113	* Old arguments to mount NFS
114	*/
115	struct onfs_args {
116	struct sockaddr addr; / file server address */
117	int addrlen; /* length of address */
118	int sotype; /* Socket type */
119	int proto; /* and Protocol */
120	u_char fh; / File handle to be mounted */
121	int fhsize; /* Size, in bytes, of fh */
122	int flags; /* flags */
123	int wsize; /* write size in bytes */
124	int rsize; /* read size in bytes */
125	int readdirsize; /* readdir size in bytes */
126	int timeo; /* initial timeout in .1 secs */
127	int retrans; /* times to retry send */
128	int maxgrouplist; /* Max. size of group list */
129	int readahead; /* # of blocks to readahead */
130	int leaseterm; /* Term (sec) of lease */
131	int deadthresh; /* Retrans threshold */
132	char hostname; / server's name */
133	};
134
135	struct nfs_diskless {
136	struct nfs_dlmount nd_root; /* Mount info for root */
137	struct nfs_dlmount nd_private; /* Mount info for private */
138	};
139
140	#endif