xref: /netbsd/lib/libquota/quota_schema.c (revision 2f739562)
1 /*	$NetBSD: quota_schema.c,v 1.7 2012/02/01 05:46:46 dholland Exp $	*/
2 /*-
3  * Copyright (c) 2011 The NetBSD Foundation, Inc.
4  * All rights reserved.
5  *
6  * This code is derived from software contributed to The NetBSD Foundation
7  * by David A. Holland.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28  * POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: quota_schema.c,v 1.7 2012/02/01 05:46:46 dholland Exp $");
33 
34 #include <sys/types.h>
35 #include <sys/statvfs.h>
36 #include <stdlib.h>
37 #include <string.h>
38 #include <errno.h>
39 
40 #include <quota.h>
41 #include "quotapvt.h"
42 
43 /*
44  * Functions for getting information about idtypes and such.
45  */
46 
47 const char *
quota_getimplname(struct quotahandle * qh)48 quota_getimplname(struct quotahandle *qh)
49 {
50 	switch (qh->qh_mode) {
51 	    case QUOTA_MODE_NFS:
52 		/* XXX this should maybe report the rquotad protocol version */
53 		return "nfs via rquotad";
54 
55 	    case QUOTA_MODE_OLDFILES:
56 		return __quota_oldfiles_getimplname(qh);
57 
58 	    case QUOTA_MODE_KERNEL:
59 		return __quota_kernel_getimplname(qh);
60 
61 	    default:
62 		break;
63 	}
64 	errno = EINVAL;
65 	return NULL;
66 }
67 
68 unsigned
quota_getrestrictions(struct quotahandle * qh)69 quota_getrestrictions(struct quotahandle *qh)
70 {
71 	switch (qh->qh_mode) {
72 	    case QUOTA_MODE_NFS:
73 		/* XXX this should maybe report the rquotad protocol version */
74 		return QUOTA_RESTRICT_32BIT | QUOTA_RESTRICT_READONLY;
75 
76 	    case QUOTA_MODE_OLDFILES:
77 		return QUOTA_RESTRICT_NEEDSQUOTACHECK |
78 			QUOTA_RESTRICT_UNIFORMGRACE |
79 			QUOTA_RESTRICT_32BIT;
80 
81 	    case QUOTA_MODE_KERNEL:
82 		return __quota_kernel_getrestrictions(qh);
83 
84 	    default:
85 		break;
86 	}
87 	errno = EINVAL;
88 	return 0;
89 }
90 
91 int
quota_getnumidtypes(struct quotahandle * qh)92 quota_getnumidtypes(struct quotahandle *qh)
93 {
94 	switch (qh->qh_mode) {
95 	    case QUOTA_MODE_NFS:
96 		/* XXX for old rquotad versions this should be 1... */
97 		return 2;
98 
99 	    case QUOTA_MODE_KERNEL:
100 		return __quota_kernel_getnumidtypes(qh);
101 
102 	    case QUOTA_MODE_OLDFILES:
103 	    default:
104 		break;
105 	}
106 	return 2;
107 }
108 
109 const char *
quota_idtype_getname(struct quotahandle * qh,int idtype)110 quota_idtype_getname(struct quotahandle *qh, int idtype)
111 {
112 	switch (qh->qh_mode) {
113 	    case QUOTA_MODE_KERNEL:
114 		return __quota_kernel_idtype_getname(qh, idtype);
115 
116 	    case QUOTA_MODE_NFS:
117 	    case QUOTA_MODE_OLDFILES:
118 		break;
119 	}
120 
121 	switch (idtype) {
122 	    case QUOTA_IDTYPE_USER:
123 		return "user";
124 
125 	    case QUOTA_IDTYPE_GROUP:
126 		return "group";
127 
128 	    default:
129 		break;
130 	}
131 	errno = EINVAL;
132 	return "???";
133 }
134 
135 int
quota_getnumobjtypes(struct quotahandle * qh)136 quota_getnumobjtypes(struct quotahandle *qh)
137 {
138 	switch (qh->qh_mode) {
139 	    case QUOTA_MODE_KERNEL:
140 		return __quota_kernel_getnumobjtypes(qh);
141 
142 	    case QUOTA_MODE_NFS:
143 	    case QUOTA_MODE_OLDFILES:
144 	    default:
145 		break;
146 	}
147 	return 2;
148 }
149 
150 const char *
quota_objtype_getname(struct quotahandle * qh,int objtype)151 quota_objtype_getname(struct quotahandle *qh, int objtype)
152 {
153 	switch (qh->qh_mode) {
154 	    case QUOTA_MODE_KERNEL:
155 		return __quota_kernel_objtype_getname(qh, objtype);
156 	    case QUOTA_MODE_NFS:
157 	    case QUOTA_MODE_OLDFILES:
158 	    default:
159 		break;
160 	}
161 
162 	switch (objtype) {
163 	    case QUOTA_OBJTYPE_BLOCKS:
164 		return "block";
165 	    case QUOTA_OBJTYPE_FILES:
166 		return "file";
167 	    default:
168 		break;
169 	}
170 	errno = EINVAL;
171 	return "???"; /* ? */
172 }
173 
174 int
quota_objtype_isbytes(struct quotahandle * qh,int objtype)175 quota_objtype_isbytes(struct quotahandle *qh, int objtype)
176 {
177 	switch (qh->qh_mode) {
178 	    case QUOTA_MODE_KERNEL:
179 		return __quota_kernel_objtype_isbytes(qh, objtype);
180 	    case QUOTA_MODE_NFS:
181 	    case QUOTA_MODE_OLDFILES:
182 	    default:
183 		break;
184 	}
185 
186 	switch (objtype) {
187 	    case QUOTA_OBJTYPE_BLOCKS:
188 		return 1;
189 	    case QUOTA_OBJTYPE_FILES:
190 		return 0;
191 	    default:
192 		break;
193 	}
194 	errno = EINVAL;
195 	return 0; /* ? */
196 }
197