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Diffstat (limited to 'c/src/libnetworking/nfs/nfsdiskless.h')
-rw-r--r-- | c/src/libnetworking/nfs/nfsdiskless.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/c/src/libnetworking/nfs/nfsdiskless.h b/c/src/libnetworking/nfs/nfsdiskless.h new file mode 100644 index 0000000000..0ed5c8f6f7 --- /dev/null +++ b/c/src/libnetworking/nfs/nfsdiskless.h @@ -0,0 +1,100 @@ +/* + * 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 8.1 (Berkeley) 6/10/93 + * $Id$ + */ + +#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_diskless { + struct ifaliasreq myif; /* Default interface */ + struct sockaddr_in mygateway; /* Default gateway */ + struct nfs_args swap_args; /* Mount args for swap file */ + u_char swap_fh[NFSX_V2FH]; /* 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 */ + u_char root_fh[NFSX_V2FH]; /* 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 */ +}; + +#endif |