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      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 
     47 struct 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  */
     59 struct 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 };
     65 struct 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
     82 struct lwp;
     83 
     84 int nfs_boot_init(struct nfs_diskless *, struct lwp *);
     85 void nfs_boot_cleanup(struct nfs_diskless *, struct lwp *);
     86 int nfs_boot_ifupdown(struct ifnet *, struct lwp *, int);
     87 int nfs_boot_setaddress(struct ifnet *, struct lwp *,
     88     uint32_t, uint32_t, uint32_t);
     89 void nfs_boot_setmtu (struct ifnet *, int, struct lwp *);
     90 int nfs_boot_deladdress(struct ifnet *, struct lwp *, uint32_t);
     91 void nfs_boot_flushrt(struct ifnet *);
     92 int nfs_boot_setrecvtimo(struct socket *);
     93 int nfs_boot_enbroadcast(struct socket *);
     94 int nfs_boot_sobind_ipport(struct socket *, uint16_t, struct lwp *);
     95 int 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 
    100 int nfs_bootdhcp(struct nfs_diskless *, struct lwp *, int *);
    101 int nfs_bootparam(struct nfs_diskless *, struct lwp *, int *);
    102 int nfs_bootstatic(struct nfs_diskless *, struct lwp *, int *);
    103 
    104 extern 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_ */
    121