1/* $NetBSD: nfsdiskless.h,v 1.33 2024/12/07 02:05:55 riastradh Exp $ */
2
3/*-
4 * Copyright (c) 1995, 1997 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Adam Glass and Gordon W. Ross.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 *
31 * @(#)nfsdiskless.h 8.1 (Berkeley) 6/10/93
32 */
33
34#ifndef _NFS_NFSDISKLESS_H_
35#define _NFS_NFSDISKLESS_H_
36
37#include <sys/types.h>
38
39#include <sys/mount.h>
40#include <sys/socket.h>
41
42#include <netinet/in.h>
43
44#include <nfs/nfsmount.h>
45#include <nfs/nfsproto.h>
46
47struct ifnet;
48
49/*
50 * Structure holds parameters needed by nfs_mountroot(),
51 * which are filled in by nfs_boot_init() using either
52 * BOOTP (RFC951, RFC1048) or Sun RPC/bootparams. These
53 * parameters are INET specific because nfs_boot_init()
54 * currently supports only AF_INET protocols.
55 *
56 * NB: All fields are stored in net byte order to avoid hassles
57 * with client/server byte ordering differences.
58 */
59struct nfs_dlmount {
60 struct nfs_args ndm_args;
61 struct sockaddr ndm_saddr; /* Address of file server */
62 char ndm_host[MNAMELEN]; /* server:pathname */
63 u_char ndm_fh[NFSX_V3FHMAX]; /* The file's file handle */
64};
65struct nfs_diskless {
66 /* the interface used */
67 struct ifnet *nd_ifp;
68 /* A collection of IP addresses, for convenience. */
69 struct in_addr nd_myip; /* My IP address */
70 struct in_addr nd_mask; /* My netmask */
71 struct in_addr nd_gwip; /* My gateway */
72 int nd_mtu; /* Interface MTU */
73 /* Information for each mount point we need. */
74 struct nfs_dlmount nd_root; /* Mount info for root */
75#ifdef TFTPROOT
76 char nd_bootfile[MNAMELEN]; /* Boot file */
77 int nd_nomount;
78#endif
79};
80
81#ifdef _KERNEL
82struct lwp;
83
84int nfs_boot_init(struct nfs_diskless *, struct lwp *);
85void nfs_boot_cleanup(struct nfs_diskless *, struct lwp *);
86int nfs_boot_ifupdown(struct ifnet *, struct lwp *, int);
87int nfs_boot_setaddress(struct ifnet *, struct lwp *,
88 uint32_t, uint32_t, uint32_t);
89void nfs_boot_setmtu (struct ifnet *, int, struct lwp *);
90int nfs_boot_deladdress(struct ifnet *, struct lwp *, uint32_t);
91void nfs_boot_flushrt(struct ifnet *);
92int nfs_boot_setrecvtimo(struct socket *);
93int nfs_boot_enbroadcast(struct socket *);
94int nfs_boot_sobind_ipport(struct socket *, uint16_t, struct lwp *);
95int nfs_boot_sendrecv(struct socket *, struct sockaddr_in *,
96 int (*)(struct mbuf *, void*, int), struct mbuf *,
97 int (*)(struct mbuf **, void*), struct mbuf **,
98 struct mbuf **, void*, struct lwp *);
99
100int nfs_bootdhcp(struct nfs_diskless *, struct lwp *, int *);
101int nfs_bootparam(struct nfs_diskless *, struct lwp *, int *);
102int nfs_bootstatic(struct nfs_diskless *, struct lwp *, int *);
103
104extern int (*nfs_bootstatic_callback)(struct nfs_diskless *);
105
106#define NFS_BOOT_HAS_MYIP 0x01
107#define NFS_BOOT_HAS_GWIP 0x02
108#define NFS_BOOT_HAS_MASK 0x04
109#define NFS_BOOT_HAS_SERVADDR 0x08
110#define NFS_BOOT_HAS_SERVER 0x10
111#define NFS_BOOT_NOSTATIC 0x20
112#define NFS_BOOT_HAS_ROOTPATH 0x40
113
114#define NFS_BOOT_ALLINFO \
115 (NFS_BOOT_HAS_MYIP|NFS_BOOT_HAS_GWIP|NFS_BOOT_HAS_MASK| \
116 NFS_BOOT_HAS_SERVADDR|NFS_BOOT_HAS_SERVER|NFS_BOOT_HAS_ROOTPATH)
117
118#endif /* _KERNEL */
119
120#endif /* _NFS_NFSDISKLESS_H_ */