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fcafb71b CH |
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_dmapi.h" | |
20 | #include "xfs_sb.h" | |
21 | #include "xfs_inum.h" | |
22 | #include "xfs_ag.h" | |
23 | #include "xfs_mount.h" | |
24 | #include "xfs_quota.h" | |
25 | #include "xfs_log.h" | |
26 | #include "xfs_trans.h" | |
27 | #include "xfs_bmap_btree.h" | |
28 | #include "xfs_inode.h" | |
29 | #include "quota/xfs_qm.h" | |
30 | #include <linux/quota.h> | |
31 | ||
32 | ||
33 | STATIC int | |
34 | xfs_quota_type(int type) | |
35 | { | |
36 | switch (type) { | |
37 | case USRQUOTA: | |
38 | return XFS_DQ_USER; | |
39 | case GRPQUOTA: | |
40 | return XFS_DQ_GROUP; | |
41 | default: | |
42 | return XFS_DQ_PROJ; | |
43 | } | |
44 | } | |
45 | ||
46 | STATIC int | |
47 | xfs_fs_quota_sync( | |
48 | struct super_block *sb, | |
49 | int type) | |
50 | { | |
51 | struct xfs_mount *mp = XFS_M(sb); | |
52 | ||
075fe102 CH |
53 | if (sb->s_flags & MS_RDONLY) |
54 | return -EROFS; | |
fcafb71b CH |
55 | if (!XFS_IS_QUOTA_RUNNING(mp)) |
56 | return -ENOSYS; | |
075fe102 | 57 | return -xfs_sync_data(mp, 0); |
fcafb71b CH |
58 | } |
59 | ||
60 | STATIC int | |
61 | xfs_fs_get_xstate( | |
62 | struct super_block *sb, | |
63 | struct fs_quota_stat *fqs) | |
64 | { | |
65 | struct xfs_mount *mp = XFS_M(sb); | |
66 | ||
67 | if (!XFS_IS_QUOTA_RUNNING(mp)) | |
68 | return -ENOSYS; | |
69 | return -xfs_qm_scall_getqstat(mp, fqs); | |
70 | } | |
71 | ||
72 | STATIC int | |
73 | xfs_fs_set_xstate( | |
74 | struct super_block *sb, | |
75 | unsigned int uflags, | |
76 | int op) | |
77 | { | |
78 | struct xfs_mount *mp = XFS_M(sb); | |
79 | unsigned int flags = 0; | |
80 | ||
81 | if (sb->s_flags & MS_RDONLY) | |
82 | return -EROFS; | |
83 | if (!XFS_IS_QUOTA_RUNNING(mp)) | |
84 | return -ENOSYS; | |
85 | if (!capable(CAP_SYS_ADMIN)) | |
86 | return -EPERM; | |
87 | ||
88 | if (uflags & XFS_QUOTA_UDQ_ACCT) | |
89 | flags |= XFS_UQUOTA_ACCT; | |
90 | if (uflags & XFS_QUOTA_PDQ_ACCT) | |
91 | flags |= XFS_PQUOTA_ACCT; | |
92 | if (uflags & XFS_QUOTA_GDQ_ACCT) | |
93 | flags |= XFS_GQUOTA_ACCT; | |
94 | if (uflags & XFS_QUOTA_UDQ_ENFD) | |
95 | flags |= XFS_UQUOTA_ENFD; | |
96 | if (uflags & (XFS_QUOTA_PDQ_ENFD|XFS_QUOTA_GDQ_ENFD)) | |
97 | flags |= XFS_OQUOTA_ENFD; | |
98 | ||
99 | switch (op) { | |
100 | case Q_XQUOTAON: | |
101 | return -xfs_qm_scall_quotaon(mp, flags); | |
102 | case Q_XQUOTAOFF: | |
103 | if (!XFS_IS_QUOTA_ON(mp)) | |
104 | return -EINVAL; | |
105 | return -xfs_qm_scall_quotaoff(mp, flags); | |
106 | case Q_XQUOTARM: | |
107 | if (XFS_IS_QUOTA_ON(mp)) | |
108 | return -EINVAL; | |
109 | return -xfs_qm_scall_trunc_qfiles(mp, flags); | |
110 | } | |
111 | ||
112 | return -EINVAL; | |
113 | } | |
114 | ||
115 | STATIC int | |
116 | xfs_fs_get_xquota( | |
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 (!XFS_IS_QUOTA_RUNNING(mp)) | |
125 | return -ENOSYS; | |
126 | if (!XFS_IS_QUOTA_ON(mp)) | |
127 | return -ESRCH; | |
128 | ||
129 | return -xfs_qm_scall_getquota(mp, id, xfs_quota_type(type), fdq); | |
130 | } | |
131 | ||
132 | STATIC int | |
133 | xfs_fs_set_xquota( | |
134 | struct super_block *sb, | |
135 | int type, | |
136 | qid_t id, | |
137 | struct fs_disk_quota *fdq) | |
138 | { | |
139 | struct xfs_mount *mp = XFS_M(sb); | |
140 | ||
141 | if (sb->s_flags & MS_RDONLY) | |
142 | return -EROFS; | |
143 | if (!XFS_IS_QUOTA_RUNNING(mp)) | |
144 | return -ENOSYS; | |
145 | if (!XFS_IS_QUOTA_ON(mp)) | |
146 | return -ESRCH; | |
147 | if (!capable(CAP_SYS_ADMIN)) | |
148 | return -EPERM; | |
149 | ||
150 | return -xfs_qm_scall_setqlim(mp, id, xfs_quota_type(type), fdq); | |
151 | } | |
152 | ||
153 | struct quotactl_ops xfs_quotactl_operations = { | |
154 | .quota_sync = xfs_fs_quota_sync, | |
155 | .get_xstate = xfs_fs_get_xstate, | |
156 | .set_xstate = xfs_fs_set_xstate, | |
157 | .get_xquota = xfs_fs_get_xquota, | |
158 | .set_xquota = xfs_fs_set_xquota, | |
159 | }; |