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NetBSD/sys/compat/osf1/osf1_mount.c

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/* $NetBSD: osf1_mount.c,v 1.3 1995/06/18 14:46:44 cgd Exp $ */
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/exec.h>
#include <sys/file.h>
#include <sys/mount.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/vnode.h>
#include <net/if.h>
#include <netinet/in.h>
#include <machine/vmparam.h>
#include <sys/syscallargs.h>
#include <compat/osf1/osf1_syscallargs.h>
extern char sigcode[], esigcode[];
#define szsigcode (esigcode - sigcode)
/* File system type numbers. */
#define OSF1_MOUNT_NONE 0
#define OSF1_MOUNT_UFS 1
#define OSF1_MOUNT_NFS 2
#define OSF1_MOUNT_MFS 3
#define OSF1_MOUNT_PC 4
#define OSF1_MOUNT_S5FS 5
#define OSF1_MOUNT_CDFS 6
#define OSF1_MOUNT_DFS 7
#define OSF1_MOUNT_EFS 8
#define OSF1_MOUNT_PROCFS 9
#define OSF1_MOUNT_MSFS 10
#define OSF1_MOUNT_FFM 11
#define OSF1_MOUNT_FDFS 12
#define OSF1_MOUNT_ADDON 13
#define OSF1_MOUNT_MAXTYPE OSF1_MOUNT_ADDON
#define OSF1_MNT_WAIT 0x1
#define OSF1_MNT_NOWAIT 0x2
#define OSF1_MNT_FORCE 0x1
#define OSF1_MNT_NOFORCE 0x2
/* acceptable flags for various calls */
#define OSF1_GETFSSTAT_FLAGS (OSF1_MNT_WAIT|OSF1_MNT_NOWAIT)
#define OSF1_MOUNT_FLAGS 0xffffffff /* XXX */
#define OSF1_UNMOUNT_FLAGS (OSF1_MNT_FORCE|OSF1_MNT_NOFORCE)
struct osf1_statfs {
int16_t f_type; /* 0 */
int16_t f_flags; /* 2 */
int32_t f_fsize; /* 4 */
int32_t f_bsize; /* 8 */
int32_t f_blocks; /* 12 */
int32_t f_bfree; /* 16 */
int32_t f_bavail; /* 20 */
int32_t f_files; /* 24 */
int32_t f_ffree; /* 28 */
int64_t f_fsid; /* 32 */
int32_t f_spare[9]; /* 40 (36 bytes) */
char f_mntonname[90]; /* 76 (90 bytes) */
char f_mntfromname[90]; /* 166 (90 bytes) */
char f_xxx[80]; /* 256 (80 bytes) XXX */
};
/* Arguments to mount() for various FS types. */
#ifdef notyet /* XXX */
struct osf1_ufs_args {
char *fspec;
int32_t exflags;
u_int32_t exroot;
};
struct osf1_cdfs_args {
char *fspec;
int32_t exflags;
u_int32_t exroot;
int32_t flags;
};
#endif
struct osf1_mfs_args {
char *name;
caddr_t base;
u_int size;
};
struct osf1_nfs_args {
struct sockaddr_in *addr;
nfsv2fh_t *fh;
int32_t flags;
int32_t wsize;
int32_t rsize;
int32_t timeo;
int32_t retrans;
char *hostname;
int32_t acregmin;
int32_t acregmax;
int32_t acdirmin;
int32_t acdirmax;
char *netname;
void *pathconf;
};
#define OSF1_NFSMNT_SOFT 0x00001
#define OSF1_NFSMNT_WSIZE 0x00002
#define OSF1_NFSMNT_RSIZE 0x00004
#define OSF1_NFSMNT_TIMEO 0x00008
#define OSF1_NFSMNT_RETRANS 0x00010
#define OSF1_NFSMNT_HOSTNAME 0x00020
#define OSF1_NFSMNT_INT 0x00040
#define OSF1_NFSMNT_NOCONN 0x00080
#define OSF1_NFSMNT_NOAC 0x00100 /* ??? */
#define OSF1_NFSMNT_ACREGMIN 0x00200 /* ??? */
#define OSF1_NFSMNT_ACREGMAX 0x00400 /* ??? */
#define OSF1_NFSMNT_ACDIRMIN 0x00800 /* ??? */
#define OSF1_NFSMNT_ACDIRMAX 0x01000 /* ??? */
#define OSF1_NFSMNT_NOCTO 0x02000 /* ??? */
#define OSF1_NFSMNT_POSIX 0x04000 /* ??? */
#define OSF1_NFSMNT_AUTO 0x08000 /* ??? */
#define OSF1_NFSMNT_FLAGS \
(OSF1_NFSMNT_SOFT|OSF1_NFSMNT_WSIZE|OSF1_NFSMNT_RSIZE| \
OSF1_NFSMNT_TIMEO|OSF1_NFSMNT_RETRANS|OSF1_NFSMNT_HOSTNAME| \
OSF1_NFSMNT_INT|OSF1_NFSMNT_NOCONN)
void
bsd2osf_statfs(bsfs, osfs)
struct statfs *bsfs;
struct osf1_statfs *osfs;
{
bzero(osfs, sizeof (struct osf1_statfs));
if (!strncmp(MOUNT_UFS, bsfs->f_fstypename, MFSNAMELEN))
osfs->f_type = OSF1_MOUNT_UFS;
else if (!strncmp(MOUNT_NFS, bsfs->f_fstypename, MFSNAMELEN))
osfs->f_type = OSF1_MOUNT_NFS;
else if (!strncmp(MOUNT_MFS, bsfs->f_fstypename, MFSNAMELEN))
osfs->f_type = OSF1_MOUNT_MFS;
else
/* uh oh... XXX = PC, CDFS, PROCFS, etc. */
osfs->f_type = OSF1_MOUNT_ADDON;
osfs->f_flags = bsfs->f_flags; /* XXX translate */
osfs->f_fsize = bsfs->f_bsize;
osfs->f_bsize = bsfs->f_iosize;
osfs->f_blocks = bsfs->f_blocks;
osfs->f_bfree = bsfs->f_bfree;
osfs->f_bavail = bsfs->f_bavail;
osfs->f_files = bsfs->f_files;
osfs->f_ffree = bsfs->f_ffree;
bcopy(&bsfs->f_fsid, &osfs->f_fsid,
max(sizeof bsfs->f_fsid, sizeof osfs->f_fsid));
/* osfs->f_spare zeroed above */
bcopy(bsfs->f_mntonname, osfs->f_mntonname,
max(sizeof bsfs->f_mntonname, sizeof osfs->f_mntonname));
bcopy(bsfs->f_mntfromname, osfs->f_mntfromname,
max(sizeof bsfs->f_mntfromname, sizeof osfs->f_mntfromname));
/* XXX osfs->f_xxx should be filled in... */
}
int
osf1_statfs(p, uap, retval)
struct proc *p;
struct osf1_statfs_args /* {
syscallarg(char *) path;
syscallarg(struct osf1_statfs *) buf;
syscallarg(int) len;
} */ *uap;
register_t *retval;
{
struct mount *mp;
struct statfs *sp;
struct osf1_statfs osfs;
int error;
struct nameidata nd;
NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
if (error = namei(&nd))
return (error);
mp = nd.ni_vp->v_mount;
sp = &mp->mnt_stat;
vrele(nd.ni_vp);
if (error = VFS_STATFS(mp, sp, p))
return (error);
sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
bsd2osf_statfs(sp, &osfs);
return copyout(&osfs, SCARG(uap, buf), min(sizeof osfs,
SCARG(uap, len)));
}
int
osf1_fstatfs(p, uap, retval)
struct proc *p;
struct osf1_fstatfs_args /* {
syscallarg(int) fd;
syscallarg(struct osf1_statfs *) buf;
syscallarg(int) len;
} */ *uap;
register_t *retval;
{
struct file *fp;
struct mount *mp;
struct statfs *sp;
struct osf1_statfs osfs;
int error;
if (error = getvnode(p->p_fd, uap->fd, &fp))
return (error);
mp = ((struct vnode *)fp->f_data)->v_mount;
sp = &mp->mnt_stat;
if (error = VFS_STATFS(mp, sp, p))
return (error);
sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
bsd2osf_statfs(sp, &osfs);
return copyout(&osfs, SCARG(uap, buf), min(sizeof osfs,
SCARG(uap, len)));
}
int
osf1_getfsstat(p, uap, retval)
struct proc *p;
register struct osf1_getfsstat_args /* {
syscallarg(struct osf1_statfs *) buf;
syscallarg(long) bufsize;
syscallarg(int) flags;
} */ *uap;
register_t *retval;
{
struct mount *mp, *nmp;
struct statfs *sp;
struct osf1_statfs osfs;
caddr_t osf_sfsp;
long count, maxcount, error;
if (SCARG(uap, flags) & ~OSF1_GETFSSTAT_FLAGS)
return (EINVAL);
maxcount = SCARG(uap, bufsize) / sizeof(struct osf1_statfs);
osf_sfsp = (caddr_t)SCARG(uap, buf);
for (count = 0, mp = mountlist.cqh_first; mp != (void *)&mountlist;
mp = nmp) {
nmp = mp->mnt_list.cqe_next;
if (osf_sfsp && count < maxcount &&
((mp->mnt_flag & MNT_MLOCK) == 0)) {
sp = &mp->mnt_stat;
/*
* If OSF1_MNT_NOWAIT is specified, do not refresh the
* fsstat cache. OSF1_MNT_WAIT overrides
* OSF1_MNT_NOWAIT.
*/
if (((SCARG(uap, flags) & OSF1_MNT_NOWAIT) == 0 ||
(SCARG(uap, flags) & OSF1_MNT_WAIT)) &&
(error = VFS_STATFS(mp, sp, p)))
continue;
sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
bsd2osf_statfs(sp, &osfs);
if (error = copyout(&osfs, osf_sfsp,
sizeof (struct osf1_statfs)))
return (error);
osf_sfsp += sizeof (struct osf1_statfs);
}
count++;
}
if (osf_sfsp && count > maxcount)
*retval = maxcount;
else
*retval = count;
return (0);
}
int
osf1_unmount(p, uap, retval)
struct proc *p;
struct osf1_unmount_args /* {
syscallarg(char *) path;
syscallarg(int) flags;
} */ *uap;
register_t *retval;
{
struct unmount_args a;
SCARG(&a, path) = SCARG(uap, path);
if (SCARG(uap, flags) & ~OSF1_UNMOUNT_FLAGS)
return (EINVAL);
SCARG(&a, flags) = 0;
if ((SCARG(uap, flags) & OSF1_MNT_FORCE) &&
(SCARG(uap, flags) & OSF1_MNT_NOFORCE) == 0)
SCARG(&a, flags) |= MNT_FORCE;
return unmount(p, &a, retval);
}
int
osf1_mount(p, uap, retval)
struct proc *p;
struct osf1_mount_args /* {
syscallarg(int) type;
syscallarg(char *) path;
syscallarg(int) flags;
syscallarg(caddr_t) data;
} */ *uap;
register_t *retval;
{
struct mount_args a;
int error;
SCARG(&a, path) = SCARG(uap, path);
if (SCARG(uap, flags) & ~OSF1_MOUNT_FLAGS)
return (EINVAL);
SCARG(&a, flags) = SCARG(uap, flags); /* XXX - xlate */
switch (SCARG(uap, type)) {
case OSF1_MOUNT_UFS: /* XXX */
return (EINVAL);
break;
case OSF1_MOUNT_NFS: /* XXX */
if (error = osf1_mount_nfs(p, uap, &a))
return error;
break;
case OSF1_MOUNT_MFS: /* XXX */
if (error = osf1_mount_mfs(p, uap, &a))
return error;
break;
case OSF1_MOUNT_CDFS: /* XXX */
return (EINVAL);
break;
case OSF1_MOUNT_PROCFS: /* XXX */
return (EINVAL);
break;
case OSF1_MOUNT_NONE:
case OSF1_MOUNT_PC:
case OSF1_MOUNT_S5FS:
case OSF1_MOUNT_DFS:
case OSF1_MOUNT_EFS:
case OSF1_MOUNT_MSFS:
case OSF1_MOUNT_FFM:
case OSF1_MOUNT_FDFS:
case OSF1_MOUNT_ADDON:
default:
return (EINVAL);
}
return mount(p, &a, retval);
}
int
osf1_mount_mfs(p, osf_argp, bsd_argp)
struct proc *p;
struct osf1_mount_args *osf_argp;
struct mount_args *bsd_argp;
{
struct osf1_mfs_args osf_ma;
struct mfs_args bsd_ma;
caddr_t cp;
int error;
if (error = copyin(SCARG(osf_argp, data), &osf_ma, sizeof osf_ma))
return error;
bzero(&bsd_ma, sizeof bsd_ma);
bsd_ma.fspec = osf_ma.name;
/* XXX export args */
bsd_ma.base = osf_ma.base;
bsd_ma.size = osf_ma.size;
cp = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
SCARG(bsd_argp, data) = cp;
if (error = copyout(&bsd_ma, cp, sizeof bsd_ma))
return error;
cp += ALIGN(sizeof bsd_ma);
SCARG(bsd_argp, type) = cp;
if (error = copyout(MOUNT_MFS, cp, strlen(MOUNT_MFS) + 1))
return error;
return 0;
}
int
osf1_mount_nfs(p, osf_argp, bsd_argp)
struct proc *p;
struct osf1_mount_args *osf_argp;
struct mount_args *bsd_argp;
{
struct osf1_nfs_args osf_na;
struct nfs_args bsd_na;
caddr_t cp;
int error;
if (error = copyin(SCARG(osf_argp, data), &osf_na, sizeof osf_na))
return error;
bzero(&bsd_na, sizeof bsd_na);
bsd_na.addr = (struct sockaddr *)osf_na.addr;
bsd_na.addrlen = sizeof (struct sockaddr_in);
bsd_na.sotype = SOCK_DGRAM;
bsd_na.proto = 0;
bsd_na.fh = osf_na.fh;
if (osf_na.flags & ~OSF1_NFSMNT_FLAGS)
return EINVAL;
if (osf_na.flags & OSF1_NFSMNT_SOFT)
bsd_na.flags |= NFSMNT_SOFT;
if (osf_na.flags & OSF1_NFSMNT_WSIZE) {
bsd_na.wsize = osf_na.wsize;
bsd_na.flags |= NFSMNT_WSIZE;
}
if (osf_na.flags & OSF1_NFSMNT_RSIZE) {
bsd_na.rsize = osf_na.rsize;
bsd_na.flags |= NFSMNT_RSIZE;
}
if (osf_na.flags & OSF1_NFSMNT_TIMEO) {
bsd_na.timeo = osf_na.timeo;
bsd_na.flags |= NFSMNT_TIMEO;
}
if (osf_na.flags & OSF1_NFSMNT_RETRANS) {
bsd_na.retrans = osf_na.retrans;
bsd_na.flags |= NFSMNT_RETRANS;
}
if (osf_na.flags & OSF1_NFSMNT_HOSTNAME)
bsd_na.hostname = osf_na.hostname;
if (osf_na.flags & OSF1_NFSMNT_INT)
bsd_na.flags |= NFSMNT_INT;
if (osf_na.flags & OSF1_NFSMNT_NOCONN)
bsd_na.flags |= NFSMNT_NOCONN;
cp = (caddr_t)ALIGN(PS_STRINGS - szsigcode - STACKGAPLEN);
SCARG(bsd_argp, data) = cp;
if (error = copyout(&bsd_na, cp, sizeof bsd_na))
return error;
cp += ALIGN(sizeof bsd_na);
SCARG(bsd_argp, type) = cp;
if (error = copyout(MOUNT_NFS, cp, strlen(MOUNT_NFS) + 1))
return error;
return 0;
}
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