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1/*
2 * Copyright (c) 2008, Christoph Hellwig
3 * All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18#include "xfs.h"
19#include "xfs_sb.h"
20#include "xfs_inum.h"
21#include "xfs_log.h"
22#include "xfs_ag.h"
23#include "xfs_mount.h"
24#include "xfs_quota.h"
25#include "xfs_trans.h"
26#include "xfs_bmap_btree.h"
27#include "xfs_inode.h"
28#include "xfs_qm.h"
29#include <linux/quota.h>
30
31
32STATIC int
33xfs_quota_type(int type)
34{
35 switch (type) {
36 case USRQUOTA:
37 return XFS_DQ_USER;
38 case GRPQUOTA:
39 return XFS_DQ_GROUP;
40 default:
41 return XFS_DQ_PROJ;
42 }
43}
44
45STATIC int
46xfs_fs_get_xstate(
47 struct super_block *sb,
48 struct fs_quota_stat *fqs)
49{
50 struct xfs_mount *mp = XFS_M(sb);
51
52 if (!XFS_IS_QUOTA_RUNNING(mp))
53 return -ENOSYS;
54 return -xfs_qm_scall_getqstat(mp, fqs);
55}
56
57STATIC int
58xfs_fs_set_xstate(
59 struct super_block *sb,
60 unsigned int uflags,
61 int op)
62{
63 struct xfs_mount *mp = XFS_M(sb);
64 unsigned int flags = 0;
65
66 if (sb->s_flags & MS_RDONLY)
67 return -EROFS;
68 if (op != Q_XQUOTARM && !XFS_IS_QUOTA_RUNNING(mp))
69 return -ENOSYS;
70
71 if (uflags & FS_QUOTA_UDQ_ACCT)
72 flags |= XFS_UQUOTA_ACCT;
73 if (uflags & FS_QUOTA_PDQ_ACCT)
74 flags |= XFS_PQUOTA_ACCT;
75 if (uflags & FS_QUOTA_GDQ_ACCT)
76 flags |= XFS_GQUOTA_ACCT;
77 if (uflags & FS_QUOTA_UDQ_ENFD)
78 flags |= XFS_UQUOTA_ENFD;
79 if (uflags & (FS_QUOTA_PDQ_ENFD|FS_QUOTA_GDQ_ENFD))
80 flags |= XFS_OQUOTA_ENFD;
81
82 switch (op) {
83 case Q_XQUOTAON:
84 return -xfs_qm_scall_quotaon(mp, flags);
85 case Q_XQUOTAOFF:
86 if (!XFS_IS_QUOTA_ON(mp))
87 return -EINVAL;
88 return -xfs_qm_scall_quotaoff(mp, flags);
89 case Q_XQUOTARM:
90 if (XFS_IS_QUOTA_ON(mp))
91 return -EINVAL;
92 return -xfs_qm_scall_trunc_qfiles(mp, flags);
93 }
94
95 return -EINVAL;
96}
97
98STATIC int
99xfs_fs_get_dqblk(
100 struct super_block *sb,
101 int type,
102 qid_t id,
103 struct fs_disk_quota *fdq)
104{
105 struct xfs_mount *mp = XFS_M(sb);
106
107 if (!XFS_IS_QUOTA_RUNNING(mp))
108 return -ENOSYS;
109 if (!XFS_IS_QUOTA_ON(mp))
110 return -ESRCH;
111
112 return -xfs_qm_scall_getquota(mp, id, xfs_quota_type(type), fdq);
113}
114
115STATIC int
116xfs_fs_set_dqblk(
117 struct super_block *sb,
118 int type,
119 qid_t id,
120 struct fs_disk_quota *fdq)
121{
122 struct xfs_mount *mp = XFS_M(sb);
123
124 if (sb->s_flags & MS_RDONLY)
125 return -EROFS;
126 if (!XFS_IS_QUOTA_RUNNING(mp))
127 return -ENOSYS;
128 if (!XFS_IS_QUOTA_ON(mp))
129 return -ESRCH;
130
131 return -xfs_qm_scall_setqlim(mp, id, xfs_quota_type(type), fdq);
132}
133
134const struct quotactl_ops xfs_quotactl_operations = {
135 .get_xstate = xfs_fs_get_xstate,
136 .set_xstate = xfs_fs_set_xstate,
137 .get_dqblk = xfs_fs_get_dqblk,
138 .set_dqblk = xfs_fs_set_dqblk,
139};
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2008, Christoph Hellwig
4 * All Rights Reserved.
5 */
6#include "xfs.h"
7#include "xfs_shared.h"
8#include "xfs_format.h"
9#include "xfs_log_format.h"
10#include "xfs_trans_resv.h"
11#include "xfs_mount.h"
12#include "xfs_inode.h"
13#include "xfs_quota.h"
14#include "xfs_trans.h"
15#include "xfs_icache.h"
16#include "xfs_qm.h"
17
18
19static void
20xfs_qm_fill_state(
21 struct qc_type_state *tstate,
22 struct xfs_mount *mp,
23 struct xfs_inode *ip,
24 xfs_ino_t ino)
25{
26 struct xfs_quotainfo *q = mp->m_quotainfo;
27 bool tempqip = false;
28
29 tstate->ino = ino;
30 if (!ip && ino == NULLFSINO)
31 return;
32 if (!ip) {
33 if (xfs_iget(mp, NULL, ino, 0, 0, &ip))
34 return;
35 tempqip = true;
36 }
37 tstate->flags |= QCI_SYSFILE;
38 tstate->blocks = ip->i_d.di_nblocks;
39 tstate->nextents = ip->i_d.di_nextents;
40 tstate->spc_timelimit = q->qi_btimelimit;
41 tstate->ino_timelimit = q->qi_itimelimit;
42 tstate->rt_spc_timelimit = q->qi_rtbtimelimit;
43 tstate->spc_warnlimit = q->qi_bwarnlimit;
44 tstate->ino_warnlimit = q->qi_iwarnlimit;
45 tstate->rt_spc_warnlimit = q->qi_rtbwarnlimit;
46 if (tempqip)
47 xfs_irele(ip);
48}
49
50/*
51 * Return quota status information, such as enforcements, quota file inode
52 * numbers etc.
53 */
54static int
55xfs_fs_get_quota_state(
56 struct super_block *sb,
57 struct qc_state *state)
58{
59 struct xfs_mount *mp = XFS_M(sb);
60 struct xfs_quotainfo *q = mp->m_quotainfo;
61
62 memset(state, 0, sizeof(*state));
63 if (!XFS_IS_QUOTA_RUNNING(mp))
64 return 0;
65 state->s_incoredqs = q->qi_dquots;
66 if (XFS_IS_UQUOTA_RUNNING(mp))
67 state->s_state[USRQUOTA].flags |= QCI_ACCT_ENABLED;
68 if (XFS_IS_UQUOTA_ENFORCED(mp))
69 state->s_state[USRQUOTA].flags |= QCI_LIMITS_ENFORCED;
70 if (XFS_IS_GQUOTA_RUNNING(mp))
71 state->s_state[GRPQUOTA].flags |= QCI_ACCT_ENABLED;
72 if (XFS_IS_GQUOTA_ENFORCED(mp))
73 state->s_state[GRPQUOTA].flags |= QCI_LIMITS_ENFORCED;
74 if (XFS_IS_PQUOTA_RUNNING(mp))
75 state->s_state[PRJQUOTA].flags |= QCI_ACCT_ENABLED;
76 if (XFS_IS_PQUOTA_ENFORCED(mp))
77 state->s_state[PRJQUOTA].flags |= QCI_LIMITS_ENFORCED;
78
79 xfs_qm_fill_state(&state->s_state[USRQUOTA], mp, q->qi_uquotaip,
80 mp->m_sb.sb_uquotino);
81 xfs_qm_fill_state(&state->s_state[GRPQUOTA], mp, q->qi_gquotaip,
82 mp->m_sb.sb_gquotino);
83 xfs_qm_fill_state(&state->s_state[PRJQUOTA], mp, q->qi_pquotaip,
84 mp->m_sb.sb_pquotino);
85 return 0;
86}
87
88STATIC int
89xfs_quota_type(int type)
90{
91 switch (type) {
92 case USRQUOTA:
93 return XFS_DQ_USER;
94 case GRPQUOTA:
95 return XFS_DQ_GROUP;
96 default:
97 return XFS_DQ_PROJ;
98 }
99}
100
101#define XFS_QC_SETINFO_MASK (QC_TIMER_MASK | QC_WARNS_MASK)
102
103/*
104 * Adjust quota timers & warnings
105 */
106static int
107xfs_fs_set_info(
108 struct super_block *sb,
109 int type,
110 struct qc_info *info)
111{
112 struct xfs_mount *mp = XFS_M(sb);
113 struct qc_dqblk newlim;
114
115 if (sb_rdonly(sb))
116 return -EROFS;
117 if (!XFS_IS_QUOTA_RUNNING(mp))
118 return -ENOSYS;
119 if (!XFS_IS_QUOTA_ON(mp))
120 return -ESRCH;
121 if (info->i_fieldmask & ~XFS_QC_SETINFO_MASK)
122 return -EINVAL;
123 if ((info->i_fieldmask & XFS_QC_SETINFO_MASK) == 0)
124 return 0;
125
126 newlim.d_fieldmask = info->i_fieldmask;
127 newlim.d_spc_timer = info->i_spc_timelimit;
128 newlim.d_ino_timer = info->i_ino_timelimit;
129 newlim.d_rt_spc_timer = info->i_rt_spc_timelimit;
130 newlim.d_ino_warns = info->i_ino_warnlimit;
131 newlim.d_spc_warns = info->i_spc_warnlimit;
132 newlim.d_rt_spc_warns = info->i_rt_spc_warnlimit;
133
134 return xfs_qm_scall_setqlim(mp, 0, xfs_quota_type(type), &newlim);
135}
136
137static unsigned int
138xfs_quota_flags(unsigned int uflags)
139{
140 unsigned int flags = 0;
141
142 if (uflags & FS_QUOTA_UDQ_ACCT)
143 flags |= XFS_UQUOTA_ACCT;
144 if (uflags & FS_QUOTA_PDQ_ACCT)
145 flags |= XFS_PQUOTA_ACCT;
146 if (uflags & FS_QUOTA_GDQ_ACCT)
147 flags |= XFS_GQUOTA_ACCT;
148 if (uflags & FS_QUOTA_UDQ_ENFD)
149 flags |= XFS_UQUOTA_ENFD;
150 if (uflags & FS_QUOTA_GDQ_ENFD)
151 flags |= XFS_GQUOTA_ENFD;
152 if (uflags & FS_QUOTA_PDQ_ENFD)
153 flags |= XFS_PQUOTA_ENFD;
154
155 return flags;
156}
157
158STATIC int
159xfs_quota_enable(
160 struct super_block *sb,
161 unsigned int uflags)
162{
163 struct xfs_mount *mp = XFS_M(sb);
164
165 if (sb_rdonly(sb))
166 return -EROFS;
167 if (!XFS_IS_QUOTA_RUNNING(mp))
168 return -ENOSYS;
169
170 return xfs_qm_scall_quotaon(mp, xfs_quota_flags(uflags));
171}
172
173STATIC int
174xfs_quota_disable(
175 struct super_block *sb,
176 unsigned int uflags)
177{
178 struct xfs_mount *mp = XFS_M(sb);
179
180 if (sb_rdonly(sb))
181 return -EROFS;
182 if (!XFS_IS_QUOTA_RUNNING(mp))
183 return -ENOSYS;
184 if (!XFS_IS_QUOTA_ON(mp))
185 return -EINVAL;
186
187 return xfs_qm_scall_quotaoff(mp, xfs_quota_flags(uflags));
188}
189
190STATIC int
191xfs_fs_rm_xquota(
192 struct super_block *sb,
193 unsigned int uflags)
194{
195 struct xfs_mount *mp = XFS_M(sb);
196 unsigned int flags = 0;
197
198 if (sb_rdonly(sb))
199 return -EROFS;
200
201 if (XFS_IS_QUOTA_ON(mp))
202 return -EINVAL;
203
204 if (uflags & FS_USER_QUOTA)
205 flags |= XFS_DQ_USER;
206 if (uflags & FS_GROUP_QUOTA)
207 flags |= XFS_DQ_GROUP;
208 if (uflags & FS_PROJ_QUOTA)
209 flags |= XFS_DQ_PROJ;
210
211 return xfs_qm_scall_trunc_qfiles(mp, flags);
212}
213
214STATIC int
215xfs_fs_get_dqblk(
216 struct super_block *sb,
217 struct kqid qid,
218 struct qc_dqblk *qdq)
219{
220 struct xfs_mount *mp = XFS_M(sb);
221 xfs_dqid_t id;
222
223 if (!XFS_IS_QUOTA_RUNNING(mp))
224 return -ENOSYS;
225 if (!XFS_IS_QUOTA_ON(mp))
226 return -ESRCH;
227
228 id = from_kqid(&init_user_ns, qid);
229 return xfs_qm_scall_getquota(mp, id, xfs_quota_type(qid.type), qdq);
230}
231
232/* Return quota info for active quota >= this qid */
233STATIC int
234xfs_fs_get_nextdqblk(
235 struct super_block *sb,
236 struct kqid *qid,
237 struct qc_dqblk *qdq)
238{
239 int ret;
240 struct xfs_mount *mp = XFS_M(sb);
241 xfs_dqid_t id;
242
243 if (!XFS_IS_QUOTA_RUNNING(mp))
244 return -ENOSYS;
245 if (!XFS_IS_QUOTA_ON(mp))
246 return -ESRCH;
247
248 id = from_kqid(&init_user_ns, *qid);
249 ret = xfs_qm_scall_getquota_next(mp, &id, xfs_quota_type(qid->type),
250 qdq);
251 if (ret)
252 return ret;
253
254 /* ID may be different, so convert back what we got */
255 *qid = make_kqid(current_user_ns(), qid->type, id);
256 return 0;
257}
258
259STATIC int
260xfs_fs_set_dqblk(
261 struct super_block *sb,
262 struct kqid qid,
263 struct qc_dqblk *qdq)
264{
265 struct xfs_mount *mp = XFS_M(sb);
266
267 if (sb_rdonly(sb))
268 return -EROFS;
269 if (!XFS_IS_QUOTA_RUNNING(mp))
270 return -ENOSYS;
271 if (!XFS_IS_QUOTA_ON(mp))
272 return -ESRCH;
273
274 return xfs_qm_scall_setqlim(mp, from_kqid(&init_user_ns, qid),
275 xfs_quota_type(qid.type), qdq);
276}
277
278const struct quotactl_ops xfs_quotactl_operations = {
279 .get_state = xfs_fs_get_quota_state,
280 .set_info = xfs_fs_set_info,
281 .quota_enable = xfs_quota_enable,
282 .quota_disable = xfs_quota_disable,
283 .rm_xquota = xfs_fs_rm_xquota,
284 .get_dqblk = xfs_fs_get_dqblk,
285 .get_nextdqblk = xfs_fs_get_nextdqblk,
286 .set_dqblk = xfs_fs_set_dqblk,
287};