1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
/*-
* 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. 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
* $FreeBSD$
*/
#ifndef _NFSCLIENT_NFSDISKLESS_H_
#define _NFSCLIENT_NFSDISKLESS_H_
/*
* Structure that must be initialized for a diskless nfs client.
* This structure is used by nfs_mountroot() to set up the root vnode,
* and to 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.
* 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 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 */
};
/*
* 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 ifaliasreq myif; /* Default interface */
struct sockaddr_in mygateway; /* Default gateway */
struct onfs_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 */
};
#ifdef _KERNEL
extern struct nfsv3_diskless nfsv3_diskless;
extern struct nfs_diskless nfs_diskless;
extern int nfs_diskless_valid;
void bootpc_init(void);
void nfs_setup_diskless(void);
void nfs_parse_options(const char *, struct nfs_args *);
#endif
#endif
|
