496 lines
12 KiB
C
496 lines
12 KiB
C
/* $NetBSD: osf1_mount.c,v 1.7 1998/05/20 16:34:29 chs Exp $ */
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/*
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* Copyright (c) 1994, 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include "fs_nfs.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/namei.h>
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#include <sys/proc.h>
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#include <sys/file.h>
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#include <sys/kernel.h>
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#include <sys/mount.h>
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#include <sys/vnode.h>
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#include <sys/syscallargs.h>
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#include <compat/osf1/osf1_syscallargs.h>
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#include <compat/osf1/osf1_util.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <nfs/rpcv2.h>
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#include <nfs/nfsproto.h>
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#include <nfs/nfs.h>
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#include <nfs/nfsmount.h>
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#include <ufs/ufs/quota.h>
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#include <ufs/ufs/ufsmount.h>
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#include <machine/vmparam.h>
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/* File system type numbers. */
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#define OSF1_MOUNT_NONE 0
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#define OSF1_MOUNT_UFS 1
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#define OSF1_MOUNT_NFS 2
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#define OSF1_MOUNT_MFS 3
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#define OSF1_MOUNT_PC 4
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#define OSF1_MOUNT_S5FS 5
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#define OSF1_MOUNT_CDFS 6
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#define OSF1_MOUNT_DFS 7
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#define OSF1_MOUNT_EFS 8
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#define OSF1_MOUNT_PROCFS 9
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#define OSF1_MOUNT_MSFS 10
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#define OSF1_MOUNT_FFM 11
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#define OSF1_MOUNT_FDFS 12
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#define OSF1_MOUNT_ADDON 13
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#define OSF1_MOUNT_MAXTYPE OSF1_MOUNT_ADDON
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#define OSF1_MNT_WAIT 0x1
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#define OSF1_MNT_NOWAIT 0x2
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#define OSF1_MNT_FORCE 0x1
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#define OSF1_MNT_NOFORCE 0x2
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/* acceptable flags for various calls */
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#define OSF1_GETFSSTAT_FLAGS (OSF1_MNT_WAIT|OSF1_MNT_NOWAIT)
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#define OSF1_MOUNT_FLAGS 0xffffffff /* XXX */
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#define OSF1_UNMOUNT_FLAGS (OSF1_MNT_FORCE|OSF1_MNT_NOFORCE)
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struct osf1_statfs {
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int16_t f_type; /* 0 */
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int16_t f_flags; /* 2 */
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int32_t f_fsize; /* 4 */
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int32_t f_bsize; /* 8 */
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int32_t f_blocks; /* 12 */
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int32_t f_bfree; /* 16 */
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int32_t f_bavail; /* 20 */
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int32_t f_files; /* 24 */
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int32_t f_ffree; /* 28 */
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int64_t f_fsid; /* 32 */
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int32_t f_spare[9]; /* 40 (36 bytes) */
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char f_mntonname[90]; /* 76 (90 bytes) */
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char f_mntfromname[90]; /* 166 (90 bytes) */
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char f_xxx[80]; /* 256 (80 bytes) XXX */
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};
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/* Arguments to mount() for various FS types. */
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#ifdef notyet /* XXX */
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struct osf1_ufs_args {
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char *fspec;
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int32_t exflags;
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u_int32_t exroot;
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};
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struct osf1_cdfs_args {
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char *fspec;
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int32_t exflags;
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u_int32_t exroot;
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int32_t flags;
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};
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#endif
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struct osf1_mfs_args {
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char *name;
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caddr_t base;
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u_int size;
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};
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struct osf1_nfs_args {
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struct sockaddr_in *addr;
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void *fh;
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int32_t flags;
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int32_t wsize;
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int32_t rsize;
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int32_t timeo;
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int32_t retrans;
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char *hostname;
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int32_t acregmin;
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int32_t acregmax;
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int32_t acdirmin;
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int32_t acdirmax;
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char *netname;
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void *pathconf;
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};
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#define OSF1_NFSMNT_SOFT 0x00001
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#define OSF1_NFSMNT_WSIZE 0x00002
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#define OSF1_NFSMNT_RSIZE 0x00004
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#define OSF1_NFSMNT_TIMEO 0x00008
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#define OSF1_NFSMNT_RETRANS 0x00010
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#define OSF1_NFSMNT_HOSTNAME 0x00020
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#define OSF1_NFSMNT_INT 0x00040
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#define OSF1_NFSMNT_NOCONN 0x00080
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#define OSF1_NFSMNT_NOAC 0x00100 /* ??? */
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#define OSF1_NFSMNT_ACREGMIN 0x00200 /* ??? */
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#define OSF1_NFSMNT_ACREGMAX 0x00400 /* ??? */
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#define OSF1_NFSMNT_ACDIRMIN 0x00800 /* ??? */
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#define OSF1_NFSMNT_ACDIRMAX 0x01000 /* ??? */
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#define OSF1_NFSMNT_NOCTO 0x02000 /* ??? */
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#define OSF1_NFSMNT_POSIX 0x04000 /* ??? */
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#define OSF1_NFSMNT_AUTO 0x08000 /* ??? */
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#define OSF1_NFSMNT_FLAGS \
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(OSF1_NFSMNT_SOFT|OSF1_NFSMNT_WSIZE|OSF1_NFSMNT_RSIZE| \
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OSF1_NFSMNT_TIMEO|OSF1_NFSMNT_RETRANS|OSF1_NFSMNT_HOSTNAME| \
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OSF1_NFSMNT_INT|OSF1_NFSMNT_NOCONN)
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void bsd2osf_statfs __P((struct statfs *, struct osf1_statfs *));
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int osf1_mount_mfs __P((struct proc *, struct osf1_sys_mount_args *,
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struct sys_mount_args *));
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int osf1_mount_nfs __P((struct proc *, struct osf1_sys_mount_args *,
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struct sys_mount_args *));
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void
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bsd2osf_statfs(bsfs, osfs)
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struct statfs *bsfs;
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struct osf1_statfs *osfs;
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{
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bzero(osfs, sizeof (struct osf1_statfs));
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if (!strncmp(MOUNT_FFS, bsfs->f_fstypename, MFSNAMELEN))
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osfs->f_type = OSF1_MOUNT_UFS;
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else if (!strncmp(MOUNT_NFS, bsfs->f_fstypename, MFSNAMELEN))
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osfs->f_type = OSF1_MOUNT_NFS;
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else if (!strncmp(MOUNT_MFS, bsfs->f_fstypename, MFSNAMELEN))
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osfs->f_type = OSF1_MOUNT_MFS;
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else
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/* uh oh... XXX = PC, CDFS, PROCFS, etc. */
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osfs->f_type = OSF1_MOUNT_ADDON;
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osfs->f_flags = bsfs->f_flags; /* XXX translate */
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osfs->f_fsize = bsfs->f_bsize;
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osfs->f_bsize = bsfs->f_iosize;
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osfs->f_blocks = bsfs->f_blocks;
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osfs->f_bfree = bsfs->f_bfree;
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osfs->f_bavail = bsfs->f_bavail;
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osfs->f_files = bsfs->f_files;
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osfs->f_ffree = bsfs->f_ffree;
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bcopy(&bsfs->f_fsid, &osfs->f_fsid,
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max(sizeof bsfs->f_fsid, sizeof osfs->f_fsid));
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/* osfs->f_spare zeroed above */
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bcopy(bsfs->f_mntonname, osfs->f_mntonname,
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max(sizeof bsfs->f_mntonname, sizeof osfs->f_mntonname));
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bcopy(bsfs->f_mntfromname, osfs->f_mntfromname,
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max(sizeof bsfs->f_mntfromname, sizeof osfs->f_mntfromname));
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/* XXX osfs->f_xxx should be filled in... */
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}
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int
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osf1_sys_statfs(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_statfs_args /* {
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syscallarg(char *) path;
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syscallarg(struct osf1_statfs *) buf;
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syscallarg(int) len;
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} */ *uap = v;
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struct mount *mp;
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struct statfs *sp;
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struct osf1_statfs osfs;
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int error;
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struct nameidata nd;
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NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
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if ((error = namei(&nd)))
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return (error);
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mp = nd.ni_vp->v_mount;
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sp = &mp->mnt_stat;
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vrele(nd.ni_vp);
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if ((error = VFS_STATFS(mp, sp, p)))
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return (error);
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sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
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bsd2osf_statfs(sp, &osfs);
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return copyout(&osfs, SCARG(uap, buf), min(sizeof osfs,
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SCARG(uap, len)));
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}
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int
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osf1_sys_fstatfs(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_fstatfs_args /* {
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syscallarg(int) fd;
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syscallarg(struct osf1_statfs *) buf;
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syscallarg(int) len;
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} */ *uap = v;
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struct file *fp;
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struct mount *mp;
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struct statfs *sp;
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struct osf1_statfs osfs;
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int error;
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if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)))
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return (error);
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mp = ((struct vnode *)fp->f_data)->v_mount;
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sp = &mp->mnt_stat;
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if ((error = VFS_STATFS(mp, sp, p)))
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return (error);
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sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
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bsd2osf_statfs(sp, &osfs);
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return copyout(&osfs, SCARG(uap, buf), min(sizeof osfs,
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SCARG(uap, len)));
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}
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int
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osf1_sys_getfsstat(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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register struct osf1_sys_getfsstat_args /* {
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syscallarg(struct osf1_statfs *) buf;
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syscallarg(long) bufsize;
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syscallarg(int) flags;
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} */ *uap = v;
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struct mount *mp, *nmp;
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struct statfs *sp;
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struct osf1_statfs osfs;
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caddr_t osf_sfsp;
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long count, maxcount, error;
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if (SCARG(uap, flags) & ~OSF1_GETFSSTAT_FLAGS)
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return (EINVAL);
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maxcount = SCARG(uap, bufsize) / sizeof(struct osf1_statfs);
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osf_sfsp = (caddr_t)SCARG(uap, buf);
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for (count = 0, mp = mountlist.cqh_first; mp != (void *)&mountlist;
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mp = nmp) {
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nmp = mp->mnt_list.cqe_next;
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if (osf_sfsp && count < maxcount) {
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sp = &mp->mnt_stat;
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/*
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* If OSF1_MNT_NOWAIT is specified, do not refresh the
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* fsstat cache. OSF1_MNT_WAIT overrides
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* OSF1_MNT_NOWAIT.
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*/
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if (((SCARG(uap, flags) & OSF1_MNT_NOWAIT) == 0 ||
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(SCARG(uap, flags) & OSF1_MNT_WAIT)) &&
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(error = VFS_STATFS(mp, sp, p)))
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continue;
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sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
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bsd2osf_statfs(sp, &osfs);
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if ((error = copyout(&osfs, osf_sfsp,
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sizeof (struct osf1_statfs))))
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return (error);
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osf_sfsp += sizeof (struct osf1_statfs);
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}
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count++;
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}
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if (osf_sfsp && count > maxcount)
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*retval = maxcount;
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else
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*retval = count;
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return (0);
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}
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int
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osf1_sys_unmount(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_unmount_args /* {
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syscallarg(char *) path;
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syscallarg(int) flags;
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} */ *uap = v;
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struct sys_unmount_args a;
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SCARG(&a, path) = SCARG(uap, path);
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if (SCARG(uap, flags) & ~OSF1_UNMOUNT_FLAGS)
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return (EINVAL);
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SCARG(&a, flags) = 0;
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if ((SCARG(uap, flags) & OSF1_MNT_FORCE) &&
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(SCARG(uap, flags) & OSF1_MNT_NOFORCE) == 0)
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SCARG(&a, flags) |= MNT_FORCE;
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return sys_unmount(p, &a, retval);
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}
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int
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osf1_sys_mount(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_mount_args /* {
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syscallarg(int) type;
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syscallarg(char *) path;
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syscallarg(int) flags;
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syscallarg(caddr_t) data;
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} */ *uap = v;
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struct sys_mount_args a;
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int error;
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SCARG(&a, path) = SCARG(uap, path);
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if (SCARG(uap, flags) & ~OSF1_MOUNT_FLAGS)
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return (EINVAL);
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SCARG(&a, flags) = SCARG(uap, flags); /* XXX - xlate */
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switch (SCARG(uap, type)) {
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case OSF1_MOUNT_UFS: /* XXX */
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return (EINVAL);
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break;
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case OSF1_MOUNT_NFS: /* XXX */
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if ((error = osf1_mount_nfs(p, uap, &a)))
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return error;
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break;
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case OSF1_MOUNT_MFS: /* XXX */
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if ((error = osf1_mount_mfs(p, uap, &a)))
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return error;
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break;
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case OSF1_MOUNT_CDFS: /* XXX */
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return (EINVAL);
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break;
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case OSF1_MOUNT_PROCFS: /* XXX */
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return (EINVAL);
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break;
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case OSF1_MOUNT_NONE:
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case OSF1_MOUNT_PC:
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case OSF1_MOUNT_S5FS:
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case OSF1_MOUNT_DFS:
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case OSF1_MOUNT_EFS:
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case OSF1_MOUNT_MSFS:
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case OSF1_MOUNT_FFM:
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case OSF1_MOUNT_FDFS:
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case OSF1_MOUNT_ADDON:
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default:
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return (EINVAL);
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}
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return sys_mount(p, &a, retval);
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}
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int
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osf1_mount_mfs(p, osf_argp, bsd_argp)
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struct proc *p;
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struct osf1_sys_mount_args *osf_argp;
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struct sys_mount_args *bsd_argp;
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{
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struct osf1_mfs_args osf_ma;
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struct mfs_args bsd_ma;
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caddr_t sg = stackgap_init(p->p_emul);
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int error, len;
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static const char mfs_name[] = MOUNT_MFS;
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if ((error = copyin(SCARG(osf_argp, data), &osf_ma, sizeof osf_ma)))
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return error;
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bzero(&bsd_ma, sizeof bsd_ma);
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bsd_ma.fspec = osf_ma.name;
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/* XXX export args */
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bsd_ma.base = osf_ma.base;
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bsd_ma.size = osf_ma.size;
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SCARG(bsd_argp, data) = stackgap_alloc(&sg, sizeof bsd_ma);
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if ((error = copyout(&bsd_ma, SCARG(bsd_argp, data), sizeof bsd_ma)))
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return error;
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len = strlen(mfs_name) + 1;
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SCARG(bsd_argp, type) = stackgap_alloc(&sg, len);
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if ((error = copyout(mfs_name, (void *)SCARG(bsd_argp, type), len)))
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return error;
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return 0;
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}
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int
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osf1_mount_nfs(p, osf_argp, bsd_argp)
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struct proc *p;
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struct osf1_sys_mount_args *osf_argp;
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struct sys_mount_args *bsd_argp;
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{
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struct osf1_nfs_args osf_na;
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struct nfs_args bsd_na;
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caddr_t sg = stackgap_init(p->p_emul);
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int error, len;
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static const char nfs_name[] = MOUNT_NFS;
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if ((error = copyin(SCARG(osf_argp, data), &osf_na, sizeof osf_na)))
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return error;
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bzero(&bsd_na, sizeof bsd_na);
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bsd_na.addr = (struct sockaddr *)osf_na.addr;
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bsd_na.addrlen = sizeof (struct sockaddr_in);
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bsd_na.sotype = SOCK_DGRAM;
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bsd_na.proto = 0;
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bsd_na.fh = osf_na.fh;
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if (osf_na.flags & ~OSF1_NFSMNT_FLAGS)
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return EINVAL;
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if (osf_na.flags & OSF1_NFSMNT_SOFT)
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bsd_na.flags |= NFSMNT_SOFT;
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if (osf_na.flags & OSF1_NFSMNT_WSIZE) {
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bsd_na.wsize = osf_na.wsize;
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bsd_na.flags |= NFSMNT_WSIZE;
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}
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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;
|
|
|
|
SCARG(bsd_argp, data) = stackgap_alloc(&sg, sizeof bsd_na);
|
|
if ((error = copyout(&bsd_na, SCARG(bsd_argp, data), sizeof bsd_na)))
|
|
return error;
|
|
|
|
len = strlen(nfs_name) + 1;
|
|
SCARG(bsd_argp, type) = stackgap_alloc(&sg, len);
|
|
if ((error = copyout(MOUNT_NFS, (void *)SCARG(bsd_argp, type), len)))
|
|
return error;
|
|
|
|
return 0;
|
|
}
|