[39e6e65a] | 1 | /* |
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| 2 | * Copyright (c) 1991, 1993 |
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| 3 | * The Regents of the University of California. All rights reserved. |
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| 4 | * |
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| 5 | * This code is derived from software contributed to Berkeley by |
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| 6 | * Rick Macklem at The University of Guelph. |
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| 7 | * |
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| 8 | * Redistribution and use in source and binary forms, with or without |
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| 9 | * modification, are permitted provided that the following conditions |
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| 10 | * are met: |
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| 11 | * 1. Redistributions of source code must retain the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer. |
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| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 14 | * notice, this list of conditions and the following disclaimer in the |
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| 15 | * documentation and/or other materials provided with the distribution. |
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| 16 | * 3. All advertising materials mentioning features or use of this software |
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| 17 | * must display the following acknowledgement: |
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| 18 | * This product includes software developed by the University of |
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| 19 | * California, Berkeley and its contributors. |
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| 20 | * 4. Neither the name of the University nor the names of its contributors |
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| 21 | * may be used to endorse or promote products derived from this software |
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| 22 | * without specific prior written permission. |
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| 23 | * |
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| 24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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| 25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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| 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 34 | * SUCH DAMAGE. |
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| 35 | * |
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| 36 | * @(#)nfsdiskless.h 8.1 (Berkeley) 6/10/93 |
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| 37 | * $Id$ |
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| 38 | */ |
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| 39 | |
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| 40 | #ifndef _NFS_NFSDISKLESS_H_ |
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| 41 | #define _NFS_NFSDISKLESS_H_ |
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| 42 | |
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| 43 | /* |
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| 44 | * Structure that must be initialized for a diskless nfs client. |
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| 45 | * This structure is used by nfs_mountroot() to set up the root and swap |
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| 46 | * vnodes plus do a partial ifconfig(8) and route(8) so that the critical net |
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| 47 | * interface can communicate with the server. |
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| 48 | * The primary bootstrap is expected to fill in the appropriate fields before |
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| 49 | * starting the kernel. Whether or not the swap area is nfs mounted is determined |
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| 50 | * by the value in swdevt[0]. (equal to NODEV --> swap over nfs) |
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| 51 | * Currently only works for AF_INET protocols. |
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| 52 | * NB: All fields are stored in net byte order to avoid hassles with |
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| 53 | * client/server byte ordering differences. |
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| 54 | */ |
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| 55 | |
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| 56 | /* |
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| 57 | * I have defined a new structure that can handle an NFS Version 3 file handle |
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| 58 | * but the kernel still expects the old Version 2 one to be provided. The |
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| 59 | * changes required in nfs_vfsops.c for using the new are documented there in |
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| 60 | * comments. (I felt that breaking network booting code by changing this |
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| 61 | * structure would not be prudent at this time, since almost all servers are |
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| 62 | * still Version 2 anyhow.) |
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| 63 | */ |
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| 64 | struct nfsv3_diskless { |
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| 65 | struct ifaliasreq myif; /* Default interface */ |
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| 66 | struct sockaddr_in mygateway; /* Default gateway */ |
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| 67 | struct nfs_args swap_args; /* Mount args for swap file */ |
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| 68 | int swap_fhsize; /* Size of file handle */ |
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| 69 | u_char swap_fh[NFSX_V3FHMAX]; /* Swap file's file handle */ |
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| 70 | struct sockaddr_in swap_saddr; /* Address of swap server */ |
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| 71 | char swap_hostnam[MNAMELEN]; /* Host name for mount pt */ |
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| 72 | int swap_nblks; /* Size of server swap file */ |
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| 73 | struct ucred swap_ucred; /* Swap credentials */ |
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| 74 | struct nfs_args root_args; /* Mount args for root fs */ |
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| 75 | int root_fhsize; /* Size of root file handle */ |
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| 76 | u_char root_fh[NFSX_V3FHMAX]; /* File handle of root dir */ |
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| 77 | struct sockaddr_in root_saddr; /* Address of root server */ |
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| 78 | char root_hostnam[MNAMELEN]; /* Host name for mount pt */ |
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| 79 | long root_time; /* Timestamp of root fs */ |
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| 80 | char my_hostnam[MAXHOSTNAMELEN]; /* Client host name */ |
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| 81 | }; |
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| 82 | |
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| 83 | struct nfs_diskless { |
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| 84 | struct ifaliasreq myif; /* Default interface */ |
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| 85 | struct sockaddr_in mygateway; /* Default gateway */ |
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| 86 | struct nfs_args swap_args; /* Mount args for swap file */ |
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| 87 | u_char swap_fh[NFSX_V2FH]; /* Swap file's file handle */ |
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| 88 | struct sockaddr_in swap_saddr; /* Address of swap server */ |
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| 89 | char swap_hostnam[MNAMELEN]; /* Host name for mount pt */ |
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| 90 | int swap_nblks; /* Size of server swap file */ |
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| 91 | struct ucred swap_ucred; /* Swap credentials */ |
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| 92 | struct nfs_args root_args; /* Mount args for root fs */ |
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| 93 | u_char root_fh[NFSX_V2FH]; /* File handle of root dir */ |
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| 94 | struct sockaddr_in root_saddr; /* Address of root server */ |
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| 95 | char root_hostnam[MNAMELEN]; /* Host name for mount pt */ |
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| 96 | long root_time; /* Timestamp of root fs */ |
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| 97 | char my_hostnam[MAXHOSTNAMELEN]; /* Client host name */ |
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| 98 | }; |
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| 99 | |
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| 100 | #endif |
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