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38 * @(#)ufs_vfsops.c 8.8 (Berkeley) 5/20/95
39 * $FreeBSD: src/sys/ufs/ufs/ufs_vfsops.c,v 1.17.2.3 2001/10/14 19:08:16 iedowse Exp $
40 * $DragonFly: src/sys/vfs/ufs/ufs_vfsops.c,v 1.2 2003/06/17 04:29:00 dillon Exp $
43 #include "opt_quota.h"
45 #include <sys/param.h>
46 #include <sys/kernel.h>
47 #include <sys/mount.h>
49 #include <sys/malloc.h>
50 #include <sys/vnode.h>
52 #include <ufs/ufs/quota.h>
53 #include <ufs/ufs/inode.h>
54 #include <ufs/ufs/ufsmount.h>
55 #include <ufs/ufs/ufs_extern.h>
57 MALLOC_DEFINE(M_UFSMNT, "UFS mount", "UFS mount structure");
59 * Make a filesystem operational.
60 * Nothing to do at the moment.
64 ufs_start(mp, flags, p)
74 * Return the root of a filesystem.
84 error = VFS_VGET(mp, (ino_t)ROOTINO, &nvp);
92 * Do operations associated with quotas
95 ufs_quotactl(mp, cmds, uid, arg, p)
105 int cmd, type, error;
108 uid = p->p_cred->p_ruid;
109 cmd = cmds >> SUBCMDSHIFT;
115 if (uid == p->p_cred->p_ruid)
119 if ((error = suser_xxx(0, p, PRISON_ROOT)) != 0)
123 type = cmds & SUBCMDMASK;
124 if ((u_int)type >= MAXQUOTAS)
126 if (vfs_busy(mp, LK_NOWAIT, 0, p))
132 error = quotaon(p, mp, type, arg);
136 error = quotaoff(p, mp, type);
140 error = setquota(mp, uid, type, arg);
144 error = setuse(mp, uid, type, arg);
148 error = getquota(mp, uid, type, arg);
165 * Initial UFS filesystems, done only once.
169 struct vfsconf *vfsp;
184 * This is the generic part of fhtovp called after the underlying
185 * filesystem has validated the file handle.
187 * Call the VFS_CHECKEXP beforehand to verify access.
190 ufs_fhtovp(mp, ufhp, vpp)
191 register struct mount *mp;
195 register struct inode *ip;
199 error = VFS_VGET(mp, ufhp->ufid_ino, &nvp);
205 if (ip->i_mode == 0 ||
206 ip->i_gen != ufhp->ufid_gen ||
207 (VFSTOUFS(mp)->um_i_effnlink_valid ? ip->i_effnlink :
219 * This is the generic part of fhtovp called after the underlying
220 * filesystem has validated the file handle.
222 * Verify that a host should have access to a filesystem.
225 ufs_check_export(mp, nam, exflagsp, credanonp)
226 register struct mount *mp;
227 struct sockaddr *nam;
229 struct ucred **credanonp;
231 register struct netcred *np;
232 register struct ufsmount *ump;;
236 * Get the export permission structure for this <mp, client> tuple.
238 np = vfs_export_lookup(mp, &ump->um_export, nam);
242 *exflagsp = np->netc_exflags;
243 *credanonp = &np->netc_anon;