version 1.1, 2011/01/20 14:25:02 |
version 1.1.2.2, 2011/02/09 19:49:44 |
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/* $NetBSD$ */ |
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/*- |
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* Copyright (c) 2010 Manuel Bouyer |
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* All rights reserved. |
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* This software is distributed under the following condiions |
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* compliant with the NetBSD foundation policy. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include <sys/cdefs.h> |
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__KERNEL_RCSID(0, "$NetBSD$"); |
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#include <sys/param.h> |
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#include <sys/kernel.h> |
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#include <sys/systm.h> |
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#include <sys/namei.h> |
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#include <sys/file.h> |
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#include <sys/proc.h> |
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#include <sys/vnode.h> |
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#include <sys/mount.h> |
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#include <sys/kauth.h> |
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#include <ufs/ufs/quota2.h> |
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#include <ufs/ufs/inode.h> |
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#include <ufs/ufs/ufsmount.h> |
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#include <ufs/ffs/ffs_extern.h> |
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#include <ufs/ffs/fs.h> |
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int |
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ffs_quota2_mount(struct mount *mp) |
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{ |
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struct ufsmount *ump = VFSTOUFS(mp); |
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struct fs *fs = ump->um_fs; |
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int error = 0; |
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struct vnode *vp; |
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struct lwp *l = curlwp; |
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if ((fs->fs_flags & FS_DOQUOTA2) == 0) |
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return 0; |
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ump->um_flags |= UFS_QUOTA2; |
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ump->umq2_bsize = fs->fs_bsize; |
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ump->umq2_bmask = fs->fs_qbmask; |
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if (fs->fs_quota_magic != Q2_HEAD_MAGIC) { |
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printf("%s: Invalid quota magic number\n", |
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mp->mnt_stat.f_mntonname); |
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return EINVAL; |
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} |
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if ((fs->fs_quota_flags & FS_Q2_DO_TYPE(USRQUOTA)) && |
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fs->fs_quotafile[USRQUOTA] == 0) { |
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printf("%s: no user quota inode\n", |
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mp->mnt_stat.f_mntonname); |
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error = EINVAL; |
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} |
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if ((fs->fs_quota_flags & FS_Q2_DO_TYPE(GRPQUOTA)) && |
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fs->fs_quotafile[GRPQUOTA] == 0) { |
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printf("%s: no group quota inode\n", |
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mp->mnt_stat.f_mntonname); |
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error = EINVAL; |
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} |
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if (error) |
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return error; |
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if (fs->fs_quota_flags & FS_Q2_DO_TYPE(USRQUOTA) && |
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ump->um_quotas[USRQUOTA] == NULLVP) { |
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error = VFS_VGET(mp, fs->fs_quotafile[USRQUOTA], &vp); |
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if (error) { |
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printf("%s: can't vget() user quota inode: %d\n", |
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mp->mnt_stat.f_mntonname, error); |
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return error; |
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} |
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ump->um_quotas[USRQUOTA] = vp; |
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ump->um_cred[USRQUOTA] = l->l_cred; |
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mutex_enter(&vp->v_interlock); |
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vp->v_writecount++; |
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mutex_exit(&vp->v_interlock); |
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VOP_UNLOCK(vp); |
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} |
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if (fs->fs_quota_flags & FS_Q2_DO_TYPE(GRPQUOTA) && |
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ump->um_quotas[GRPQUOTA] == NULLVP) { |
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error = VFS_VGET(mp, fs->fs_quotafile[GRPQUOTA], &vp); |
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if (error) { |
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vn_close(ump->um_quotas[USRQUOTA], |
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FREAD|FWRITE, l->l_cred); |
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printf("%s: can't vget() group quota inode: %d\n", |
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mp->mnt_stat.f_mntonname, error); |
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return error; |
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} |
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ump->um_quotas[GRPQUOTA] = vp; |
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ump->um_cred[GRPQUOTA] = l->l_cred; |
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mutex_enter(&vp->v_interlock); |
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vp->v_vflag |= VV_SYSTEM; |
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vp->v_writecount++; |
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mutex_exit(&vp->v_interlock); |
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VOP_UNLOCK(vp); |
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} |
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mp->mnt_flag |= MNT_QUOTA; |
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return 0; |
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} |