1 '\" te
2 .\" Copyright (c) 2004, Sun Microsystems, Inc. All Rights Reserved
3 .\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
4 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
5 .\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
6 .TH QUOTACTL 7I "Jun 14, 2004"
7 .SH NAME
8 quotactl \- manipulate disk quotas
9 .SH SYNOPSIS
10 .LP
11 .nf
12 #include <sys/fs/ufs_quota.h>
13 int ioctl(int \fIfd\fR, Q_QUOTACTL, struct quotcl *\fIqp\fR)
14 .fi
15
16 .SH DESCRIPTION
17 .sp
18 .LP
19 This \fBioctl()\fR call manipulates disk quotas. \fIfd\fR is the file
20 descriptor returned by the \fBopen()\fR system call after opening the
21 \fBquotas\fR file (located in the root directory of the filesystem running
22 quotas.) \fBQ_QUOTACTL\fR is defined in \fB/usr/include/sys/fs/ufs_quota.h\fR.
23 \fIqp\fR is the address of the \fBquotctl\fR structure which is defined as
24 .sp
25 .in +2
26 .nf
27 struct quotctl {
28 int op;
29 uid_t uid;
30 caddr_t addr;
31 };
32 .fi
33 .in -2
34
35 .sp
36 .LP
37 \fIop\fR indicates an operation to be applied to the user \fBID\fR \fIuid\fR.
38 (See below.) \fIaddr\fR is the address of an optional, command specific, data
39 structure which is copied in or out of the system. The interpretation of
40 \fIaddr\fR is given with each value of \fIop\fR below.
41 .sp
42 .ne 2
43 .na
44 \fB\fBQ_QUOTAON\fR\fR
45 .ad
46 .RS 14n
47 Turn on quotas for a file system. \fIaddr\fR points to the full pathname of the
48 \fBquotas\fR file. \fIuid\fR is ignored. It is recommended that \fIuid\fR have
49 the value of \fB0\fR. This call is restricted to the super-user.
50 .RE
51
52 .sp
53 .ne 2
54 .na
55 \fB\fBQ_QUOTAOFF\fR\fR
56 .ad
57 .RS 14n
58 Turn off quotas for a file system. \fIaddr\fR and \fIuid\fR are ignored. It is
59 recommended that \fIaddr\fR have the value of \fINULL\fR and \fIuid\fR have the
60 value of \fB0\fR. This call is restricted to the super-user.
61 .RE
62
63 .sp
64 .ne 2
65 .na
66 \fB\fBQ_GETQUOTA\fR\fR
67 .ad
68 .RS 14n
69 Get disk quota limits and current usage for user \fIuid\fR. \fIaddr\fR is a
70 pointer to a \fBdqblk\fR structure (defined in \fB<sys/fs/ufs_quota.h>\fR).
71 Only the super-user may get the quotas of a user other than himself.
72 .RE
73
74 .sp
75 .ne 2
76 .na
77 \fB\fBQ_SETQUOTA\fR\fR
78 .ad
79 .RS 14n
80 Set disk quota limits and current usage for user \fIuid\fR. \fIaddr\fR is a
81 pointer to a \fBdqblk\fR structure (defined in \fBsys/fs/ufs_quota.h\fR). This
82 call is restricted to the super-user.
83 .RE
84
85 .sp
86 .ne 2
87 .na
88 \fB\fBQ_SETQLIM\fR\fR
89 .ad
90 .RS 14n
91 Set disk quota limits for user \fIuid\fR. \fIaddr\fR is a pointer to a
92 \fBdqblk\fR structure (defined in \fBsys/fs/ufs_quota.h\fR). This call is
93 restricted to the super-user.
94 .RE
95
96 .sp
97 .ne 2
98 .na
99 \fB\fBQ_SYNC\fR\fR
100 .ad
101 .RS 14n
102 Update the on-disk copy of quota usages for this file system. \fIaddr\fR and
103 \fIuid\fR are ignored.
104 .RE
105
106 .sp
107 .ne 2
108 .na
109 \fB\fBQ_ALLSYNC\fR\fR
110 .ad
111 .RS 14n
112 Update the on-disk copy of quota usages for all file systems with active
113 quotas. \fIaddr\fR and \fIuid\fR are ignored.
114 .RE
115
116 .SH RETURN VALUES
117 .sp
118 .LP
119 This \fBioctl()\fR returns:
120 .sp
121 .ne 2
122 .na
123 \fB\fB0\fR\fR
124 .ad
125 .RS 9n
126 on success.
127 .RE
128
129 .sp
130 .ne 2
131 .na
132 \fB\fB\(mi1\fR\fR
133 .ad
134 .RS 9n
135 on failure and sets \fBerrno\fR to indicate the error.
136 .RE
137
138 .SH ERRORS
139 .sp
140 .ne 2
141 .na
142 \fB\fBEFAULT\fR\fR
143 .ad
144 .RS 10n
145 \fIaddr\fR is invalid.
146 .RE
147
148 .sp
149 .ne 2
150 .na
151 \fB\fBEINVAL\fR\fR
152 .ad
153 .RS 10n
154 The kernel has not been compiled with the \fBQUOTA\fR option. \fIop\fR is
155 invalid.
156 .RE
157
158 .sp
159 .ne 2
160 .na
161 \fB\fBENOENT\fR\fR
162 .ad
163 .RS 10n
164 The \fBquotas\fR file specified by \fIaddr\fR does not exist.
165 .RE
166
167 .sp
168 .ne 2
169 .na
170 \fB\fBEPERM\fR\fR
171 .ad
172 .RS 10n
173 The call is privileged and the calling process did not assert
174 {PRIV_SYS_MOUNT} in the effective set.
175 .RE
176
177 .sp
178 .ne 2
179 .na
180 \fB\fBESRCH\fR\fR
181 .ad
182 .RS 10n
183 No disk quota is found for the indicated user. Quotas have not been turned on
184 for this file system.
185 .RE
186
187 .sp
188 .ne 2
189 .na
190 \fB\fBEUSERS\fR\fR
191 .ad
192 .RS 10n
193 The quota table is full.
194 .RE
195
196 .sp
197 .LP
198 If \fIop\fR is \fBQ_QUOTAON\fR, \fBioctl()\fR may set \fBerrno\fR to:
199 .sp
200 .ne 2
201 .na
202 \fB\fBEACCES\fR\fR
203 .ad
204 .RS 10n
205 The quota file pointed to by \fIaddr\fR exists but is not a regular file. The
206 quota file pointed to by \fIaddr\fR exists but is not on the file system
207 pointed to by \fIspecial\fR.
208 .RE
209
210 .sp
211 .ne 2
212 .na
213 \fB\fBEIO\fR\fR
214 .ad
215 .RS 10n
216 Internal I/O error while attempting to read the \fBquotas\fR file pointed to by
217 \fIaddr\fR.
218 .RE
219
220 .SH FILES
221 .sp
222 .ne 2
223 .na
224 \fB\fB/usr/include/sys/fs/ufs_quota.h\fR\fR
225 .ad
226 .sp .6
227 .RS 4n
228 quota-related structure/function definitions and defines
229 .RE
230
231 .SH SEE ALSO
232 .sp
233 .LP
234 \fBquota\fR(1M), \fBquotacheck\fR(1M), \fBquotaon\fR(1M), \fBgetrlimit\fR(2),
235 \fBmount\fR(2)
236 .SH BUGS
237 .sp
238 .LP
239 There should be some way to integrate this call with the resource limit
240 interface provided by \fBsetrlimit()\fR and \fBgetrlimit\fR(2).
241 .sp
242 .LP
243 This call is incompatible with Melbourne quotas.
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1 .\" Copyright (c) 2004, Sun Microsystems, Inc. All Rights Reserved
2 .\" Copyright (c) 2017, Joyent, Inc.
3 .\" The contents of this file are subject to the terms of the
4 .\" Common Development and Distribution License (the "License").
5 .\" You may not use this file except in compliance with the License.
6 .\"
7 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
8 .\" or http://www.opensolaris.org/os/licensing.
9 .\" See the License for the specific language governing permissions
10 .\" and limitations under the License.
11 .\"
12 .\" When distributing Covered Code, include this CDDL HEADER in each
13 .\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
14 .\" If applicable, add the following below this CDDL HEADER, with the
15 .\" fields enclosed by brackets "[]" replaced with your own identifying
16 .\" information: Portions Copyright [yyyy] [name of copyright owner]
17 .Dd October 28, 2017
18 .Dt QUOTACTL 7I
19 .Os
20 .Sh NAME
21 .Nm quotactl
22 .Nd manipulate disk quotas
23 .Sh SYNOPSIS
24 .In sys/fs/ufs_quota.h
25 .Fn "int ioctl" "int fd" "Q_QUOTACTL" "struct quotctl *qp"
26 .Sh DESCRIPTION
27 This
28 .Fn ioctl
29 call manipulates disk quotas.
30 .Fa fd
31 is the file descriptor returned by the
32 .Xr open 2
33 system call after opening the
34 .Pa quotas
35 file (located in the root directory of the filesystem running quotas).
36 .Dv Q_QUOTACTL
37 is defined in
38 .Pa /usr/include/sys/fs/ufs_quota.h .
39 .Fa qp
40 is the address of the
41 .Vt quotctl
42 structure which is defined as
43 .Bd -literal -offset 2n
44 struct quotctl {
45 int op;
46 uid_t uid;
47 caddr_t addr;
48 };
49 .Ed
50 .Pp
51 .Fa op
52 indicates an operation to be applied to the user
53 .Sy ID
54 .Fa uid .
55 .Po
56 See below.
57 .Pc
58 .Fa addr
59 is the address of an optional, command specific, data
60 structure which is copied in or out of the system.
61 The interpretation of
62 .Fa addr
63 is given with each value of
64 .Fa op
65 below.
66 .Bl -tag -width Q_GETQUOTA
67 .It Sy Q_QUOTAON
68 Turn on quotas for a file system.
69 .Fa addr
70 points to the full pathname of the
71 .Pa quotas
72 file.
73 .Fa uid
74 is ignored.
75 It is recommended that
76 .Fa uid
77 have the value of
78 .Sy 0 .
79 This call is restricted to the super-user.
80 .It Dv Q_QUOTAOFF
81 Turn off quotas for a file system.
82 .Fa addr
83 and
84 .Fa uid
85 are ignored.
86 It is
87 recommended that
88 .Fa addr
89 have the value of
90 .Sy NULL
91 and
92 .Fa uid
93 have the value of
94 .Sy 0 .
95 This call is restricted to the super-user.
96 .It Dv Q_GETQUOTA
97 Get disk quota limits and current usage for user
98 .Fa uid .
99 .Fa addr
100 is a pointer to a
101 .Vt dqblk
102 structure
103 .Po
104 defined in
105 .In sys/fs/ufs_quota.h
106 .Pc .
107 Only the super-user may get the quotas of a user other than himself.
108 .It Dv Q_SETQUOTA
109 Set disk quota limits and current usage for user
110 .Fa uid .
111 .Fa addr
112 is a pointer to a
113 .Vt dqblk
114 structure
115 .Po
116 defined in
117 .In sys/fs/ufs_quota.h
118 .Pc .
119 This call is restricted to the super-user.
120 .It Dv Q_SETQLIM
121 Set disk quota limits for user
122 .Fa uid .
123 .Fa addr
124 is a pointer to a
125 .Vt dqblk
126 structure
127 .Po
128 defined in
129 .In sys/fs/ufs_quota.h
130 .Pc .
131 This call is restricted to the super-user.
132 .It Dv Q_SYNC
133 Update the on-disk copy of quota usages for this file system.
134 .Fa addr
135 and
136 .Fa uid
137 are ignored.
138 .It Dv Q_ALLSYNC
139 Update the on-disk copy of quota usages for all file systems with active
140 quotas.
141 .Fa addr
142 and
143 .Fa uid
144 are ignored.
145 .El
146 .Sh RETURN VALUES
147 This
148 Fn ioctl
149 returns:
150 .Bl -tag -width xx
151 .It Sy 0
152 on success.
153 .It Sy \(mi1
154 on failure and sets
155 .Va errno
156 to indicate the error.
157 .El
158 .Sh FILES
159 .Bl -tag -width x
160 .It Pa /usr/include/sys/fs/ufs_quota.h
161 quota-related structure/function definitions and defines
162 .El
163 .Sh ERRORS
164 .Bl -tag -width EFAULT
165 .It Er EFAULT
166 .Fa addr
167 is invalid.
168 .It Er EINVAL
169 The kernel has not been compiled with the
170 .Sy QUOTA
171 option.
172 .Fa op
173 is invalid.
174 .It Er ENOENT
175 The
176 .Pa quotas
177 file specified by
178 .Fa addr
179 does not exist.
180 .It Er EPERM
181 The call is privileged and the calling process did not assert
182 .Brq Sy PRIV_SYS_MOUNT
183 in the effective set.
184 .It Er ESRCH
185 No disk quota is found for the indicated user.
186 Quotas have not been turned on for this file system.
187 .It Er EUSERS
188 The quota table is full.
189 .El
190 .Pp
191 If
192 .Fa op
193 is
194 .Dv Q_QUOTAON ,
195 .Fn ioctl
196 may set
197 .Va errno
198 to:
199 .Bl -tag -width EACCES
200 .It Er EACCES
201 The quota file pointed to by
202 .Fa addr
203 exists but is not a regular file.
204 The quota file pointed to by
205 .Fa addr
206 exists but is not on the file system pointed to by
207 .Fa special .
208 .It Er EIO
209 Internal I/O error while attempting to read the
210 .Pa quotas
211 file pointed to by
212 .Fa addr .
213 .El
214 .Sh SEE ALSO
215 .Xr quota 1M ,
216 .Xr quotacheck 1M ,
217 .Xr quotaon 1M ,
218 .Xr getrlimit 2 ,
219 .Xr mount 2
220 .Sh BUGS
221 There should be some way to integrate this call with the resource limit
222 interface provided by
223 .Xr setrlimit 2
224 and
225 .Xr getrlimit 2 .
226 .Pp
227 This call is incompatible with Melbourne quotas.
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