cd9660_vfsops.c (97d5f7bb3b3599b1016490a8287cfbd2b761141a) cd9660_vfsops.c (a13234bb35c2671d47ec5b12eb613bb5d62121f2)
1/*-
2 * Copyright (c) 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley
6 * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
7 * Support code is derived from software contributed to Berkeley
8 * by Atsushi Murai (amurai@spec.co.jp).

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68
69static int cd9660_mount __P((struct mount *,
70 char *, caddr_t, struct nameidata *, struct proc *));
71static int cd9660_unmount __P((struct mount *, int, struct proc *));
72static int cd9660_root __P((struct mount *, struct vnode **));
73static int cd9660_statfs __P((struct mount *, struct statfs *, struct proc *));
74static int cd9660_vget __P((struct mount *, ino_t, struct vnode **));
75static int cd9660_fhtovp __P((struct mount *, struct fid *, struct vnode **));
1/*-
2 * Copyright (c) 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley
6 * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
7 * Support code is derived from software contributed to Berkeley
8 * by Atsushi Murai (amurai@spec.co.jp).

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68
69static int cd9660_mount __P((struct mount *,
70 char *, caddr_t, struct nameidata *, struct proc *));
71static int cd9660_unmount __P((struct mount *, int, struct proc *));
72static int cd9660_root __P((struct mount *, struct vnode **));
73static int cd9660_statfs __P((struct mount *, struct statfs *, struct proc *));
74static int cd9660_vget __P((struct mount *, ino_t, struct vnode **));
75static int cd9660_fhtovp __P((struct mount *, struct fid *, struct vnode **));
76static int cd9660_checkexp __P((struct mount *, struct sockaddr *,
77 int *, struct ucred **));
78static int cd9660_vptofh __P((struct vnode *, struct fid *));
79
80static struct vfsops cd9660_vfsops = {
81 cd9660_mount,
82 vfs_stdstart,
83 cd9660_unmount,
84 cd9660_root,
85 vfs_stdquotactl,
86 cd9660_statfs,
87 vfs_stdsync,
88 cd9660_vget,
89 cd9660_fhtovp,
76static int cd9660_vptofh __P((struct vnode *, struct fid *));
77
78static struct vfsops cd9660_vfsops = {
79 cd9660_mount,
80 vfs_stdstart,
81 cd9660_unmount,
82 cd9660_root,
83 vfs_stdquotactl,
84 cd9660_statfs,
85 vfs_stdsync,
86 cd9660_vget,
87 cd9660_fhtovp,
90 cd9660_checkexp,
88 vfs_stdcheckexp,
91 cd9660_vptofh,
92 cd9660_init,
93 cd9660_uninit,
94 vfs_stdextattrctl,
95};
96VFS_SET(cd9660_vfsops, cd9660, VFCF_READONLY);
97MODULE_VERSION(cd9660, 1);
98

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202
203 /*
204 * If updating, check whether changing from read-only to
205 * read/write; if there is no device name, that's all we do.
206 */
207 if (mp->mnt_flag & MNT_UPDATE) {
208 imp = VFSTOISOFS(mp);
209 if (args.fspec == 0)
89 cd9660_vptofh,
90 cd9660_init,
91 cd9660_uninit,
92 vfs_stdextattrctl,
93};
94VFS_SET(cd9660_vfsops, cd9660, VFCF_READONLY);
95MODULE_VERSION(cd9660, 1);
96

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200
201 /*
202 * If updating, check whether changing from read-only to
203 * read/write; if there is no device name, that's all we do.
204 */
205 if (mp->mnt_flag & MNT_UPDATE) {
206 imp = VFSTOISOFS(mp);
207 if (args.fspec == 0)
210 return (vfs_export(mp, &imp->im_export, &args.export));
208 return (vfs_export(mp, &args.export));
211 }
212 /*
213 * Not an update, or updating the name: look up the name
214 * and verify that it refers to a sensible block device.
215 */
216 NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p);
217 if ((error = namei(ndp)))
218 return (error);

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648 *vpp = NULLVP;
649 return (ESTALE);
650 }
651 *vpp = nvp;
652 return (0);
653}
654
655int
209 }
210 /*
211 * Not an update, or updating the name: look up the name
212 * and verify that it refers to a sensible block device.
213 */
214 NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p);
215 if ((error = namei(ndp)))
216 return (error);

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646 *vpp = NULLVP;
647 return (ESTALE);
648 }
649 *vpp = nvp;
650 return (0);
651}
652
653int
656cd9660_checkexp(mp, nam, exflagsp, credanonp)
657 struct mount *mp;
658 struct sockaddr *nam;
659 int *exflagsp;
660 struct ucred **credanonp;
661{
662 register struct netcred *np;
663 register struct iso_mnt *imp;
664
665 imp = VFSTOISOFS(mp);
666
667 /*
668 * Get the export permission structure for this <mp, client> tuple.
669 */
670 np = vfs_export_lookup(mp, &imp->im_export, nam);
671 if (np == NULL)
672 return (EACCES);
673
674 *exflagsp = np->netc_exflags;
675 *credanonp = &np->netc_anon;
676 return (0);
677}
678
679int
680cd9660_vget(mp, ino, vpp)
681 struct mount *mp;
682 ino_t ino;
683 struct vnode **vpp;
684{
685
686 /*
687 * XXXX

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655 struct mount *mp;
656 ino_t ino;
657 struct vnode **vpp;
658{
659
660 /*
661 * XXXX

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