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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