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38 * @(#)ufs_vfsops.c 8.8 (Berkeley) 5/20/95
39 * $Id: ufs_vfsops.c,v 1.10 1997/08/16 19:16:27 wollman Exp $
42 #include "opt_quota.h"
44 #include <sys/param.h>
45 #include <sys/mount.h>
47 #include <sys/malloc.h>
48 #include <sys/vnode.h>
50 #include <ufs/ufs/quota.h>
51 #include <ufs/ufs/inode.h>
52 #include <ufs/ufs/ufsmount.h>
53 #include <ufs/ufs/ufs_extern.h>
55 MALLOC_DEFINE(M_UFSMNT, "UFS mount", "UFS mount structure");
57 * Make a filesystem operational.
58 * Nothing to do at the moment.
62 ufs_start(mp, flags, p)
72 * Return the root of a filesystem.
82 error = VFS_VGET(mp, (ino_t)ROOTINO, &nvp);
90 * Do operations associated with quotas
93 ufs_quotactl(mp, cmds, uid, arg, p)
103 int cmd, type, error;
106 uid = p->p_cred->p_ruid;
107 cmd = cmds >> SUBCMDSHIFT;
113 if (uid == p->p_cred->p_ruid)
117 if (error = suser(p->p_ucred, &p->p_acflag))
121 type = cmds & SUBCMDMASK;
122 if ((u_int)type >= MAXQUOTAS)
124 if (vfs_busy(mp, LK_NOWAIT, 0, p))
130 error = quotaon(p, mp, type, arg);
134 error = quotaoff(p, mp, type);
138 error = setquota(mp, uid, type, arg);
142 error = setuse(mp, uid, type, arg);
146 error = getquota(mp, uid, type, arg);
163 * Initial UFS filesystems, done only once.
167 struct vfsconf *vfsp;
182 * This is the generic part of fhtovp called after the underlying
183 * filesystem has validated the file handle.
185 * Verify that a host should have access to a filesystem, and if so
186 * return a vnode for the presented file handle.
189 ufs_check_export(mp, ufhp, nam, vpp, exflagsp, credanonp)
190 register struct mount *mp;
192 struct sockaddr *nam;
195 struct ucred **credanonp;
197 register struct inode *ip;
198 register struct netcred *np;
199 register struct ufsmount *ump = VFSTOUFS(mp);
204 * Get the export permission structure for this <mp, client> tuple.
206 np = vfs_export_lookup(mp, &ump->um_export, nam);
210 error = VFS_VGET(mp, ufhp->ufid_ino, &nvp);
216 if (ip->i_mode == 0 || ip->i_gen != ufhp->ufid_gen) {
222 *exflagsp = np->netc_exflags;
223 *credanonp = &np->netc_anon;