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ultrix_fs.c revision 1.9
      1  1.9  jonathan /*	$NetBSD: ultrix_fs.c,v 1.9 1997/04/06 23:26:52 jonathan Exp $	*/
      2  1.1  jonathan 
      3  1.1  jonathan /*
      4  1.1  jonathan  * Copyright (c) 1995
      5  1.1  jonathan  *	Jonathan Stone (hereinafter referred to as the author)
      6  1.1  jonathan  *
      7  1.1  jonathan  * Redistribution and use in source and binary forms, with or without
      8  1.1  jonathan  * modification, are permitted provided that the following conditions
      9  1.1  jonathan  * are met:
     10  1.1  jonathan  * 1. Redistributions of source code must retain the above copyright
     11  1.1  jonathan  *    notice, this list of conditions and the following disclaimer.
     12  1.1  jonathan  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1  jonathan  *    notice, this list of conditions and the following disclaimer in the
     14  1.1  jonathan  *    documentation and/or other materials provided with the distribution.
     15  1.7  jonathan  * 3. All advertising materials mentioning features or use of this software
     16  1.7  jonathan  *    must display the following acknowledgement:
     17  1.8  jonathan  *      This product includes software developed by Jonathan Stone for
     18  1.7  jonathan  *      the NetBSD Project.
     19  1.7  jonathan  * 4. The name of the author may not be used to endorse or promote products
     20  1.1  jonathan  *    derived from this software without specific prior written permission.
     21  1.1  jonathan  *
     22  1.1  jonathan  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
     23  1.1  jonathan  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  1.1  jonathan  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  1.1  jonathan  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE
     26  1.1  jonathan  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  1.1  jonathan  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  1.1  jonathan  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  1.1  jonathan  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  1.1  jonathan  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  1.1  jonathan  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  1.1  jonathan  * SUCH DAMAGE.
     33  1.1  jonathan  */
     34  1.1  jonathan 
     35  1.1  jonathan #include <sys/param.h>
     36  1.1  jonathan #include <sys/systm.h>
     37  1.1  jonathan #include <sys/malloc.h>
     38  1.2  jonathan #include <sys/exec.h>
     39  1.2  jonathan #include <sys/namei.h>
     40  1.1  jonathan #include <sys/mount.h>
     41  1.9  jonathan #include <sys/proc.h>
     42  1.2  jonathan #include <net/if.h>
     43  1.2  jonathan #include <netinet/in.h>
     44  1.1  jonathan 
     45  1.3        pk #include <nfs/rpcv2.h>
     46  1.3        pk #include <nfs/nfsproto.h>
     47  1.3        pk #include <nfs/nfs.h>
     48  1.2  jonathan 
     49  1.2  jonathan #include <sys/syscallargs.h>
     50  1.1  jonathan #include <compat/ultrix/ultrix_syscallargs.h>
     51  1.9  jonathan #include <compat/common/compat_util.h>
     52  1.1  jonathan 
     53  1.2  jonathan #include <vm/vm.h>
     54  1.2  jonathan 
     55  1.1  jonathan #define	ULTRIX_MAXPATHLEN	1024
     56  1.1  jonathan 
     57  1.1  jonathan /**
     58  1.1  jonathan  ** Ultrix filesystem operations: mount(), getmnt().
     59  1.1  jonathan  ** These are included purely so one can place an (ECOFF or ELF)
     60  1.1  jonathan  ** NetBSD/pmax kernel in an Ultrix root filesystem, boot it,
     61  1.1  jonathan  ** and over-write the Ultrix root parition with NetBSD binaries.
     62  1.1  jonathan  **/
     63  1.1  jonathan 
     64  1.1  jonathan /*
     65  1.1  jonathan  * Ultrix file system data structure, as modified by
     66  1.1  jonathan  * Ultrix getmntent(). This  structure is padded to 2560 bytes, for
     67  1.1  jonathan  * compatiblity with the size the Ultrix kernel and user apps expect.
     68  1.1  jonathan  */
     69  1.1  jonathan struct ultrix_fs_data {
     70  1.1  jonathan 	u_int32_t	ufsd_flags;	/* how mounted */
     71  1.1  jonathan 	u_int32_t	ufsd_mtsize;	/* max transfer size in bytes */
     72  1.1  jonathan 	u_int32_t	ufsd_otsize;	/* optimal transfer size in bytes */
     73  1.1  jonathan 	u_int32_t	ufsd_bsize;	/* fs block size (bytes) for vm code */
     74  1.1  jonathan 	u_int32_t	ufsd_fstype;	/* see ../h/fs_types.h  */
     75  1.1  jonathan 	u_int32_t	ufsd_gtot;	/* total number of gnodes */
     76  1.1  jonathan 	u_int32_t	ufsd_gfree;	/* # of free gnodes */
     77  1.1  jonathan 	u_int32_t	ufsd_btot;	/* total number of 1K blocks */
     78  1.1  jonathan 	u_int32_t	ufsd_bfree;	/* # of free 1K blocks */
     79  1.1  jonathan 	u_int32_t	ufsd_bfreen;	/* user consumable 1K blocks */
     80  1.1  jonathan 	u_int32_t	ufsd_pgthresh;	/* min size in bytes before paging*/
     81  1.1  jonathan 	int32_t		ufsd_uid;	/* uid that mounted me */
     82  1.1  jonathan 	int16_t		ufsd_dev;	/* major/minor of fs */
     83  1.1  jonathan 	int16_t		ufsd_exroot;	/* root mapping from exports */
     84  1.1  jonathan 	char		ufsd_devname[ULTRIX_MAXPATHLEN + 4]; /* name of dev */
     85  1.1  jonathan 	char		ufsd_path[ULTRIX_MAXPATHLEN + 4]; /* name of mnt point */
     86  1.1  jonathan 	u_int32_t	ufsd_nupdate;	/* number of writes */
     87  1.1  jonathan 	u_int32_t	ufsd_pad[112];	/* pad to 2560 bytes. */
     88  1.1  jonathan };
     89  1.1  jonathan 
     90  1.1  jonathan /*
     91  1.1  jonathan  * Get statistics on mounted filesystems.
     92  1.1  jonathan  */
     93  1.1  jonathan #if 0
     94  1.1  jonathan struct ultrix_getmnt_args {
     95  1.1  jonathan 	int32_t *start;
     96  1.1  jonathan 	struct ultrix_fs_data *buf;
     97  1.1  jonathan 	int32_t bufsize;
     98  1.1  jonathan 	int32_t mode;
     99  1.1  jonathan 	char *path;
    100  1.1  jonathan };
    101  1.1  jonathan 
    102  1.1  jonathan #endif
    103  1.1  jonathan /*
    104  1.1  jonathan  * Ultrix getmnt() flags.
    105  1.1  jonathan  * The operation getmnt() should perform is incoded in the flag
    106  1.1  jonathan  * argument.  There are two independent attributes.
    107  1.1  jonathan  *
    108  1.1  jonathan  * ULTRIX_NOSTAT_xxx will never hang, but it may not return
    109  1.1  jonathan  * up-to-date statistics. (For NFS clients, it returns whatever is
    110  1.1  jonathan  * in the cache.) ULTRIX_STAT_xxx returns up-to-date info but may
    111  1.1  jonathan  * hang (e.g., on dead NFS servers).
    112  1.1  jonathan  *
    113  1.1  jonathan  * ULTRIX_xxSTAT_ONE returns statistics on just one filesystem, determined
    114  1.1  jonathan  * by the parth argument.  ULTRIX_xxSTAT_MANY ignores the path argument and
    115  1.1  jonathan  * returns info on as many  filesystems fit in the structure.
    116  1.1  jonathan  * the start argument, which should be zero on the first call,
    117  1.1  jonathan  * can be used to iterate over all filesystems.
    118  1.1  jonathan  *
    119  1.1  jonathan  */
    120  1.1  jonathan #define	ULTRIX_NOSTAT_MANY	1
    121  1.1  jonathan #define	ULTRIX_STAT_MANY	2
    122  1.1  jonathan #define	ULTRIX_STAT_ONE		3
    123  1.1  jonathan #define	ULTRIX_NOSTAT_ONE	4
    124  1.1  jonathan 
    125  1.1  jonathan /*
    126  1.1  jonathan  * Ultrix gnode-layer  filesystem codes.
    127  1.1  jonathan  */
    128  1.1  jonathan #define ULTRIX_FSTYPE_UNKNOWN	0x0
    129  1.2  jonathan #define ULTRIX_FSTYPE_ULTRIX	0x1	/*  Ultrix UFS: basically 4.2bsd FFS */
    130  1.1  jonathan #define ULTRIX_FSTYPE_NFS	0x5	/*  NFS v2 */
    131  1.1  jonathan 
    132  1.1  jonathan /*
    133  1.2  jonathan  * Ultrix mount(2) options
    134  1.2  jonathan  */
    135  1.2  jonathan #define ULTRIX_NM_RONLY    0x0001  /* mount read-only */
    136  1.2  jonathan #define ULTRIX_NM_SOFT     0x0002  /* soft mount (hard is default) */
    137  1.2  jonathan #define ULTRIX_NM_WSIZE    0x0004  /* set write size */
    138  1.2  jonathan #define ULTRIX_NM_RSIZE    0x0008  /* set read size */
    139  1.2  jonathan #define ULTRIX_NM_TIMEO    0x0010  /* set initial timeout */
    140  1.2  jonathan #define ULTRIX_NM_RETRANS  0x0020  /* set number of request retrys */
    141  1.2  jonathan #define ULTRIX_NM_HOSTNAME 0x0040  /* set hostname for error printf */
    142  1.2  jonathan #define ULTRIX_NM_PGTHRESH 0x0080  /* set page threshold for exec */
    143  1.2  jonathan #define ULTRIX_NM_INT      0x0100  /* allow hard mount keyboard interrupts */
    144  1.2  jonathan #define ULTRIX_NM_NOAC     0x0200  /* don't cache attributes */
    145  1.2  jonathan 
    146  1.2  jonathan 
    147  1.2  jonathan /*
    148  1.1  jonathan  * Construct an Ultrix getmnt() ultrix_fs_data from the native NetBSD
    149  1.1  jonathan  * struct statfs.
    150  1.1  jonathan  */
    151  1.1  jonathan static void
    152  1.1  jonathan make_ultrix_mntent(sp, tem)
    153  1.1  jonathan 	register struct statfs *sp;
    154  1.1  jonathan 	register struct ultrix_fs_data *tem;
    155  1.1  jonathan {
    156  1.1  jonathan 
    157  1.2  jonathan 	bzero(tem, sizeof (*tem));
    158  1.2  jonathan 
    159  1.2  jonathan 	tem->ufsd_flags = sp->f_flags;		/* XXX translate */
    160  1.1  jonathan 	tem->ufsd_mtsize = sp->f_bsize;		/* XXX max transfer size */
    161  1.1  jonathan 	tem->ufsd_otsize = sp->f_iosize;
    162  1.1  jonathan 	tem->ufsd_bsize = sp->f_bsize;
    163  1.1  jonathan 	/*
    164  1.2  jonathan 	 * Translate file system type. NetBSD/1.1 has f_type zero,
    165  1.2  jonathan 	 * and uses an fstype string instead.
    166  1.2  jonathan 	 * For now, map types not in Ultrix (kernfs, null, procfs...)
    167  1.2  jonathan 	 * to UFS, since Ultrix mout will try and call mount_unknown
    168  1.2  jonathan 	 * for ULTRIX_FSTYPE_UNKNOWN, but lacks a mount_unknown binary.
    169  1.1  jonathan 	 */
    170  1.2  jonathan 	tem->ufsd_fstype = ULTRIX_FSTYPE_NFS;
    171  1.2  jonathan 	if (strcmp(sp->f_fstypename, "ffs") == 0)
    172  1.2  jonathan 		tem->ufsd_fstype = ULTRIX_FSTYPE_ULTRIX;
    173  1.2  jonathan 
    174  1.2  jonathan 	tem->ufsd_gtot = sp->f_files;		/* total "gnodes" */
    175  1.4  jonathan 	tem->ufsd_gfree = sp->f_ffree;		/* free "gnodes" */
    176  1.2  jonathan 	tem->ufsd_btot = sp->f_blocks;		/* total 1k blocks */
    177  1.4  jonathan #ifdef needsmorethought	/* XXX */
    178  1.4  jonathan 	/* tem->ufsd_bfree = sp->f_bfree; */	/* free 1k blocks */
    179  1.4  jonathan 	/* tem->ufsd_bfree = sp->f_bavail; */	/* free 1k blocks */
    180  1.4  jonathan #endif
    181  1.4  jonathan 
    182  1.2  jonathan 	tem->ufsd_bfreen = sp->f_bavail;	/* blocks available to users */
    183  1.1  jonathan 	tem->ufsd_pgthresh = 0;			/* not relevant */
    184  1.1  jonathan 	tem->ufsd_uid = 0;			/* XXX kept where ?*/
    185  1.1  jonathan 	tem->ufsd_dev = 0;			/* ?? */
    186  1.1  jonathan 	tem->ufsd_exroot  = 0;			/* ?? */
    187  1.1  jonathan 	strncpy(tem->ufsd_path, sp->f_mntonname, ULTRIX_MAXPATHLEN);
    188  1.1  jonathan 	strncpy(tem->ufsd_devname, sp->f_mntfromname, ULTRIX_MAXPATHLEN);
    189  1.2  jonathan #if 0
    190  1.2  jonathan 	/* In NetBSD-1.1, filesystem type is unused and always 0 */
    191  1.6  christos 	printf("mntent: %s type %d\n", tem->ufsd_devname, tem->ufsd_fstype);
    192  1.6  christos 	printf("mntent: %s tot %d free %d user%d\n",
    193  1.2  jonathan 	 tem->ufsd_devname, sp->f_blocks, sp->f_bfree, sp->f_bavail);
    194  1.2  jonathan #endif
    195  1.1  jonathan }
    196  1.1  jonathan 
    197  1.1  jonathan int
    198  1.1  jonathan ultrix_sys_getmnt(p, v, retval)
    199  1.1  jonathan 	struct proc *p;
    200  1.1  jonathan 	void *v;
    201  1.1  jonathan 	int *retval;
    202  1.1  jonathan {
    203  1.1  jonathan 	struct ultrix_sys_getmnt_args *uap = v;
    204  1.1  jonathan 	struct mount *mp, *nmp;
    205  1.1  jonathan 	struct statfs *sp;
    206  1.1  jonathan 	struct ultrix_fs_data *sfsp;
    207  1.1  jonathan 	char *path;
    208  1.1  jonathan 	int mntflags;
    209  1.1  jonathan 	int skip;
    210  1.1  jonathan 	int start;
    211  1.1  jonathan 	long count, maxcount;
    212  1.1  jonathan 	int error = 0;
    213  1.1  jonathan 
    214  1.1  jonathan 	path = NULL;
    215  1.1  jonathan 	error = 0;
    216  1.1  jonathan 	maxcount = SCARG(uap, bufsize) / sizeof(struct ultrix_fs_data);
    217  1.1  jonathan 	sfsp = SCARG(uap, buf);
    218  1.1  jonathan 
    219  1.1  jonathan 	if (SCARG(uap, mode) == ULTRIX_STAT_ONE ||
    220  1.1  jonathan 	    SCARG(uap, mode) == ULTRIX_STAT_MANY)
    221  1.1  jonathan 		mntflags = MNT_WAIT;
    222  1.1  jonathan 	else
    223  1.1  jonathan 		mntflags = MNT_NOWAIT;
    224  1.1  jonathan 
    225  1.1  jonathan 	if (SCARG(uap, mode) == ULTRIX_STAT_ONE || SCARG(uap, mode) == ULTRIX_NOSTAT_ONE) {
    226  1.1  jonathan 		/*
    227  1.1  jonathan 		 * Only get info on mountpoints that matches the path
    228  1.1  jonathan 		 * provided.
    229  1.1  jonathan 		 */
    230  1.1  jonathan 		MALLOC(path, char *, MAXPATHLEN, M_TEMP, M_WAITOK);
    231  1.4  jonathan 		if ((error = copyinstr(SCARG(uap, path), path,
    232  1.4  jonathan 				       MAXPATHLEN, NULL)) != 0)
    233  1.1  jonathan 			goto bad;
    234  1.1  jonathan 		maxcount = 1;
    235  1.1  jonathan 	} else {
    236  1.1  jonathan 		/*
    237  1.1  jonathan 		 * Get info on any mountpoints, somewhat like readdir().
    238  1.1  jonathan 		 * Find out how many mount list entries to skip, and skip
    239  1.1  jonathan 		 * them.
    240  1.1  jonathan 		 */
    241  1.4  jonathan 		if ((error = copyin((caddr_t)SCARG(uap, start), &start,
    242  1.4  jonathan 				    sizeof(*SCARG(uap, start))))  != 0)
    243  1.1  jonathan 			goto bad;
    244  1.1  jonathan 		for (skip = start, mp = mountlist.cqh_first;
    245  1.1  jonathan 		    mp != (void*)&mountlist && skip-- > 0; mp = nmp)
    246  1.1  jonathan 			nmp = mp->mnt_list.cqe_next;
    247  1.1  jonathan 	}
    248  1.1  jonathan 
    249  1.1  jonathan 	for (count = 0, mp = mountlist.cqh_first;
    250  1.1  jonathan 	    mp != (void*)&mountlist && count < maxcount; mp = nmp) {
    251  1.1  jonathan 		nmp = mp->mnt_list.cqe_next;
    252  1.1  jonathan 		if (sfsp != NULL && (mp->mnt_flag & MNT_MLOCK) == 0) {
    253  1.1  jonathan 			struct ultrix_fs_data tem;
    254  1.1  jonathan 			sp = &mp->mnt_stat;
    255  1.1  jonathan 
    256  1.1  jonathan 			/*
    257  1.1  jonathan 			 * If requested, refresh the fsstat cache.
    258  1.1  jonathan 			 */
    259  1.1  jonathan 			if ((mntflags & MNT_WAIT) != 0 &&
    260  1.1  jonathan 			    (error = VFS_STATFS(mp, sp, p)) != 0)
    261  1.1  jonathan 				continue;
    262  1.1  jonathan 
    263  1.1  jonathan 			/*
    264  1.1  jonathan 			 * XXX what does this do? -- cgd
    265  1.1  jonathan 			 */
    266  1.1  jonathan 			sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
    267  1.1  jonathan 			if (path == NULL ||
    268  1.1  jonathan 			    strcmp(path, sp->f_mntonname) == 0) {
    269  1.1  jonathan 				make_ultrix_mntent(sp, &tem);
    270  1.4  jonathan 				if ((error = copyout((caddr_t)&tem, sfsp,
    271  1.4  jonathan 						     sizeof(tem))) != 0)
    272  1.1  jonathan 					goto bad;
    273  1.1  jonathan 				sfsp++;
    274  1.1  jonathan 				count++;
    275  1.1  jonathan 			}
    276  1.1  jonathan 		}
    277  1.1  jonathan 	}
    278  1.1  jonathan 
    279  1.1  jonathan 	if (sfsp != NULL && count > maxcount)
    280  1.1  jonathan 		*retval = maxcount;
    281  1.1  jonathan 	else
    282  1.1  jonathan 		*retval = count;
    283  1.1  jonathan 
    284  1.1  jonathan bad:
    285  1.1  jonathan 	if (path)
    286  1.1  jonathan 		FREE(path, M_TEMP);
    287  1.1  jonathan 	return (error);
    288  1.2  jonathan }
    289  1.2  jonathan 
    290  1.2  jonathan 
    291  1.2  jonathan 
    292  1.2  jonathan /* Old-style inet sockaddr (no len field) as passed to Ultrix mount(2) */
    293  1.2  jonathan struct osockaddr_in {
    294  1.2  jonathan 	short   sin_family;
    295  1.2  jonathan 	u_short sin_port;
    296  1.2  jonathan 	struct  in_addr sin_addr;
    297  1.2  jonathan 	char    sin_zero[8];
    298  1.2  jonathan };
    299  1.2  jonathan 
    300  1.2  jonathan 
    301  1.2  jonathan /*
    302  1.2  jonathan  * fstype-dependent structure passed to Ultrix mount(2) when
    303  1.2  jonathan  * mounting NFS filesystems
    304  1.2  jonathan  */
    305  1.2  jonathan struct	ultrix_nfs_args {
    306  1.2  jonathan 	struct	osockaddr_in *addr;	/* file server address */
    307  1.3        pk 	void	*fh;			/* file handle to be mounted */
    308  1.2  jonathan 	int	flags;			/* flags */
    309  1.2  jonathan 	int	wsize;			/* write size in bytes */
    310  1.2  jonathan 	int	rsize;			/* read size in bytes */
    311  1.2  jonathan 	int	timeo;			/* initial timeout in .1 secs */
    312  1.2  jonathan 	int	retrans;		/* times to retry send */
    313  1.2  jonathan 	char	*hostname;		/* server's hostname */
    314  1.2  jonathan 	char	*optstr;		/* string of nfs mount options*/
    315  1.2  jonathan 	int	gfs_flags;		/* gnode flags (ugh) */
    316  1.2  jonathan 	int	pg_thresh;		/* paging threshold ? */
    317  1.2  jonathan };
    318  1.2  jonathan 
    319  1.2  jonathan 
    320  1.2  jonathan /*
    321  1.2  jonathan  * fstype-dependent structure passed to Ultrix mount(2) when
    322  1.2  jonathan  * mounting local (4.2bsd FFS) filesystems
    323  1.2  jonathan  */
    324  1.2  jonathan struct ultrix_ufs_args {
    325  1.2  jonathan 	u_long ufs_flags;		/* mount flags?*/
    326  1.2  jonathan 	u_long ufs_pgthresh;		/* minimum file size to page */
    327  1.2  jonathan };
    328  1.2  jonathan 
    329  1.2  jonathan int
    330  1.2  jonathan ultrix_sys_mount(p, v, retval)
    331  1.2  jonathan 	struct proc *p;
    332  1.2  jonathan 	void *v;
    333  1.2  jonathan 	int *retval;
    334  1.2  jonathan {
    335  1.2  jonathan 	struct ultrix_sys_mount_args *uap = v;
    336  1.2  jonathan 
    337  1.2  jonathan 	int error;
    338  1.2  jonathan 	int otype = SCARG(uap, type);
    339  1.2  jonathan 	extern char sigcode[], esigcode[];
    340  1.2  jonathan 	char fsname[MFSNAMELEN];
    341  1.2  jonathan 	char * fstype;
    342  1.2  jonathan 	struct sys_mount_args nuap;
    343  1.8  jonathan 	char *native_fstype;
    344  1.2  jonathan 
    345  1.9  jonathan 	caddr_t usp = stackgap_init(p->p_emul);
    346  1.2  jonathan 
    347  1.2  jonathan 	bzero(&nuap, sizeof(nuap));
    348  1.2  jonathan 	SCARG(&nuap, flags) = 0;
    349  1.2  jonathan 
    350  1.2  jonathan 	/*
    351  1.2  jonathan 	 * Translate Ultrix integer mount codes for UFS and NFS to
    352  1.2  jonathan 	 * NetBSD fstype strings.  Other Ultrix filesystem types
    353  1.2  jonathan 	 *  (msdos, DEC ods-2) are not supported.
    354  1.8  jonathan 	 * Copy resulting string out to userspace (on stack)
    355  1.8  jonathan 	 * so we can pass it to the native mount syscall.
    356  1.2  jonathan 	 */
    357  1.2  jonathan 	if (otype == ULTRIX_FSTYPE_ULTRIX)
    358  1.2  jonathan 		fstype = "ufs";
    359  1.2  jonathan 	else if (otype == ULTRIX_FSTYPE_NFS)
    360  1.2  jonathan 		fstype = "nfs";
    361  1.2  jonathan 	else
    362  1.2  jonathan 		return (EINVAL);
    363  1.2  jonathan 
    364  1.2  jonathan 	/* Translate the Ultrix mount-readonly option parameter */
    365  1.2  jonathan 	if (SCARG(uap, rdonly))
    366  1.2  jonathan 		SCARG(&nuap, flags) |= MNT_RDONLY;
    367  1.2  jonathan 
    368  1.2  jonathan 	/* Copy string-ified version of mount type back out to user space */
    369  1.8  jonathan 	native_fstype = (char *)usp;
    370  1.8  jonathan 	SCARG(&nuap, type) = native_fstype;
    371  1.8  jonathan 	if ((error = copyout(fstype, native_fstype,
    372  1.4  jonathan 			    strlen(fstype)+1)) != 0) {
    373  1.2  jonathan 		return (error);
    374  1.2  jonathan 	}
    375  1.2  jonathan 	usp += strlen(fstype)+1;
    376  1.2  jonathan 
    377  1.2  jonathan #ifdef later
    378  1.2  jonathan 	parse ultrix mount option string and set NetBSD flags
    379  1.2  jonathan #endif
    380  1.2  jonathan 	SCARG(&nuap, path) = SCARG(uap, dir);
    381  1.2  jonathan 
    382  1.8  jonathan 	/*
    383  1.8  jonathan 	 * Translate fstype-dependent mount options from
    384  1.8  jonathan 	 * Ultrix format to native.
    385  1.8  jonathan 	 */
    386  1.2  jonathan 	if (otype == ULTRIX_FSTYPE_ULTRIX) {
    387  1.2  jonathan 		/* attempt to mount a native, rather than 4.2bsd, ffs */
    388  1.2  jonathan 		struct ufs_args ua;
    389  1.2  jonathan 
    390  1.2  jonathan 		ua.fspec = SCARG(uap, special);
    391  1.2  jonathan 		bzero(&ua.export, sizeof(ua.export));
    392  1.2  jonathan 		SCARG(&nuap, data) = usp;
    393  1.2  jonathan 
    394  1.4  jonathan 		if ((error = copyout(&ua, SCARG(&nuap, data),
    395  1.4  jonathan 				     sizeof ua)) !=0) {
    396  1.2  jonathan 			return(error);
    397  1.2  jonathan 		}
    398  1.2  jonathan 		/*
    399  1.2  jonathan 		 * Ultrix mount has no MNT_UPDATE flag.
    400  1.2  jonathan 		 * Attempt to see if this is the root we're mounting,
    401  1.2  jonathan 		 * and if so, set MNT_UPDATE so we can mount / read-write.
    402  1.2  jonathan 		 */
    403  1.2  jonathan 		fsname[0] = 0;
    404  1.4  jonathan 		if ((error = copyinstr((caddr_t)SCARG(&nuap, path), fsname,
    405  1.4  jonathan 				      sizeof fsname, (u_int*)0)) != 0)
    406  1.2  jonathan 			return(error);
    407  1.2  jonathan 		if (strcmp(fsname, "/") == 0) {
    408  1.2  jonathan 			SCARG(&nuap, flags) |= MNT_UPDATE;
    409  1.6  christos 			printf("COMPAT_ULTRIX: mount with MNT_UPDATE on %s\n",
    410  1.5  christos 			    fsname);
    411  1.2  jonathan 		}
    412  1.2  jonathan 	} else if (otype == ULTRIX_FSTYPE_NFS) {
    413  1.2  jonathan 		struct ultrix_nfs_args una;
    414  1.2  jonathan 		struct nfs_args na;
    415  1.2  jonathan 		struct osockaddr_in osa;
    416  1.2  jonathan 		struct sockaddr_in *sap = (struct sockaddr_in *)& osa;
    417  1.2  jonathan 
    418  1.2  jonathan 		bzero(&osa, sizeof(osa));
    419  1.2  jonathan 		bzero(&una, sizeof(una));
    420  1.4  jonathan 		if ((error = copyin(SCARG(uap, data), &una, sizeof una)) !=0) {
    421  1.2  jonathan 			return (error);
    422  1.2  jonathan 		}
    423  1.2  jonathan 		/*
    424  1.2  jonathan 		 * This is the only syscall boundary the
    425  1.2  jonathan 		 * address of the server passes, so do backwards
    426  1.2  jonathan 		 * compatibility on 4.3style sockaddrs here.
    427  1.2  jonathan 		 */
    428  1.4  jonathan 		if ((error = copyin(una.addr, &osa, sizeof osa)) != 0) {
    429  1.6  christos 			printf("ultrix_mount: nfs copyin osa\n");
    430  1.2  jonathan 			return (error);
    431  1.2  jonathan 		}
    432  1.2  jonathan 		sap->sin_family = (u_char)osa.sin_family;
    433  1.2  jonathan 		sap->sin_len = sizeof(*sap);
    434  1.2  jonathan 		/* allocate space above caller's stack for nfs_args */
    435  1.2  jonathan 		SCARG(&nuap, data) = usp;
    436  1.2  jonathan 		usp +=  sizeof (na);
    437  1.2  jonathan 		/* allocate space above caller's stack for server sockaddr */
    438  1.3        pk 		na.version = NFS_ARGSVERSION;
    439  1.2  jonathan 		na.addr = (struct sockaddr *)usp;
    440  1.2  jonathan 		usp += sizeof(*sap);
    441  1.2  jonathan 		na.addrlen = sap->sin_len;
    442  1.2  jonathan 		na.sotype = SOCK_DGRAM;
    443  1.2  jonathan 		na.proto = IPPROTO_UDP;
    444  1.2  jonathan 		na.fh = una.fh;
    445  1.3        pk 		na.fhsize = NFSX_V2FH;
    446  1.2  jonathan 		na.flags = /*una.flags;*/ NFSMNT_NOCONN | NFSMNT_RESVPORT;
    447  1.2  jonathan 		na.wsize = una.wsize;
    448  1.2  jonathan 		na.rsize = una.rsize;
    449  1.2  jonathan 		na.timeo = una.timeo;
    450  1.2  jonathan 		na.retrans = una.retrans;
    451  1.2  jonathan 		na.hostname = una.hostname;
    452  1.4  jonathan 		if ((error = copyout(sap, na.addr, sizeof (*sap) )) != 0)
    453  1.2  jonathan 			return (error);
    454  1.4  jonathan 		if ((error = copyout(&na, SCARG(&nuap, data), sizeof na)) != 0)
    455  1.2  jonathan 			return (error);
    456  1.2  jonathan 	}
    457  1.2  jonathan 	return (sys_mount(p, &nuap, retval));
    458  1.1  jonathan }
    459