source: vendor/3.6.9/source3/lib/sysquotas_nfs.c

Last change on this file was 740, checked in by Silvan Scherrer, 13 years ago

Samba Server: update vendor to 3.6.0
File size: 7.1 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 System QUOTA function wrappers for NFS
4 Copyright (C) Michael Adam 2010
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
18*/
19
20
21#include "includes.h"
22
23#undef DBGC_CLASS
24#define DBGC_CLASS DBGC_QUOTA
25
26#ifndef HAVE_SYS_QUOTAS
27#ifdef HAVE_NFS_QUOTAS
28#undef HAVE_NFS_QUOTAS
29#endif
30#endif
31
32#ifdef HAVE_NFS_QUOTAS
33
34/*
35 * nfs quota support
36 * This is based on the FreeBSD / SUNOS5 section of quotas.c
37 */
38
39#include <rpc/rpc.h>
40#include <rpc/types.h>
41#include <rpcsvc/rquota.h>
42#ifdef HAVE_RPC_NETTYPE_H
43#include <rpc/nettype.h>
44#endif
45#include <rpc/xdr.h>
46
47static int my_xdr_getquota_args(XDR *xdrsp, struct getquota_args *args)
48{
49 if (!xdr_string(xdrsp, &args->gqa_pathp, RQ_PATHLEN ))
50 return(0);
51 if (!xdr_int(xdrsp, &args->gqa_uid))
52 return(0);
53 return (1);
54}
55
56static int my_xdr_getquota_rslt(XDR *xdrsp, struct getquota_rslt *gqr)
57{
58 int quotastat;
59
60 if (!xdr_int(xdrsp, &quotastat)) {
61 DEBUG(6,("nfs_quotas: Status bad or zero\n"));
62 return 0;
63 }
64 gqr->status = quotastat;
65
66 if (!xdr_int(xdrsp, &gqr->getquota_rslt_u.gqr_rquota.rq_bsize)) {
67 DEBUG(6,("nfs_quotas: Block size bad or zero\n"));
68 return 0;
69 }
70 if (!xdr_bool(xdrsp, &gqr->getquota_rslt_u.gqr_rquota.rq_active)) {
71 DEBUG(6,("nfs_quotas: Active bad or zero\n"));
72 return 0;
73 }
74 if (!xdr_int(xdrsp, (int *)&gqr->getquota_rslt_u.gqr_rquota.rq_bhardlimit)) {
75 DEBUG(6,("nfs_quotas: Hardlimit bad or zero\n"));
76 return 0;
77 }
78 if (!xdr_int(xdrsp, (int *)&gqr->getquota_rslt_u.gqr_rquota.rq_bsoftlimit)) {
79 DEBUG(6,("nfs_quotas: Softlimit bad or zero\n"));
80 return 0;
81 }
82 if (!xdr_int(xdrsp, (int *)&gqr->getquota_rslt_u.gqr_rquota.rq_curblocks)) {
83 DEBUG(6,("nfs_quotas: Currentblocks bad or zero\n"));
84 return 0;
85 }
86 return (1);
87}
88
89
90int sys_get_nfs_quota(const char *path, const char *bdev,
91 enum SMB_QUOTA_TYPE qtype,
92 unid_t id, SMB_DISK_QUOTA *dp)
93{
94 CLIENT *clnt = NULL;
95 struct getquota_rslt gq_rslt;
96 struct getquota_args gq_args;
97 const char *mnttype;
98 char *cutstr, *pathname, *host, *testpath;
99 int len;
100 static struct timeval timeout = {2,0};
101 enum clnt_stat clnt_stat;
102
103 int ret = -1;
104 uint32 qflags = 0;
105
106 if (!path || !bdev || !dp) {
107 smb_panic("sys_get_nfs_quota: called with NULL pointer");
108 }
109
110 DEBUG(10, ("sys_get_nfs_quota: path[%s] bdev[%s] qtype[%d]\n",
111 path, bdev, qtype));
112
113 ZERO_STRUCT(*dp);
114
115 dp->qtype = qtype;
116
117 if (qtype != SMB_USER_QUOTA_TYPE) {
118 DEBUG(3, ("sys_get_nfs_quota: got unsupported quota type '%d', "
119 "only supported type is '%d' (SMB_USER_QUOTA_TYPE)\n",
120 qtype, SMB_USER_QUOTA_TYPE));
121 errno = ENOSYS;
122 return -1;
123 }
124
125 mnttype = bdev;
126 len = strcspn(mnttype, ":");
127 pathname = strstr(mnttype, ":");
128 cutstr = (char *) SMB_MALLOC(len+1);
129 if (cutstr == NULL) {
130 errno = ENOMEM;
131 return -1;
132 }
133
134 memset(cutstr, '\0', len+1);
135 host = strncat(cutstr, mnttype, sizeof(char) * len);
136 testpath = strchr_m(mnttype, ':');
137 if (testpath == NULL) {
138 errno = EINVAL;
139 goto out;
140 }
141 testpath++;
142 gq_args.gqa_pathp = testpath;
143 gq_args.gqa_uid = id.uid;
144
145 DEBUG(10, ("sys_get_nfs_quotas: Asking for quota of path '%s' on "
146 "host '%s', rpcprog '%i', rpcvers '%i', network '%s'\n",
147 host, testpath+1, RQUOTAPROG, RQUOTAVERS, "udp"));
148
149 clnt = clnt_create(host, RQUOTAPROG, RQUOTAVERS, "udp");
150 if (clnt == NULL) {
151 ret = -1;
152 goto out;
153 }
154
155 clnt->cl_auth = authunix_create_default();
156 if (clnt->cl_auth == NULL) {
157 DEBUG(3, ("sys_get_nfs_quotas: authunix_create_default "
158 "failed\n"));
159 ret = -1;
160 goto out;
161 }
162
163 clnt_stat = clnt_call(clnt,
164 RQUOTAPROC_GETQUOTA,
165 (const xdrproc_t) my_xdr_getquota_args,
166 (caddr_t)&gq_args,
167 (const xdrproc_t) my_xdr_getquota_rslt,
168 (caddr_t)&gq_rslt,
169 timeout);
170
171 if (clnt_stat != RPC_SUCCESS) {
172 DEBUG(3, ("sys_get_nfs_quotas: clnt_call failed\n"));
173 ret = -1;
174 goto out;
175 }
176
177 DEBUG(10, ("sys_get_nfs_quotas: getquota_rslt:\n"
178 "status : '%i'\n"
179 "bsize : '%i'\n"
180 "active : '%s'\n"
181 "bhardlimit : '%u'\n"
182 "bsoftlimit : '%u'\n"
183 "curblocks : '%u'\n"
184 "fhardlimit : '%u'\n"
185 "fsoftlimit : '%u'\n"
186 "curfiles : '%u'\n"
187 "btimeleft : '%u'\n"
188 "ftimeleft : '%u'\n",
189 gq_rslt.status,
190 gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize,
191 gq_rslt.getquota_rslt_u.gqr_rquota.rq_active?"yes":"no",
192 gq_rslt.getquota_rslt_u.gqr_rquota.rq_bhardlimit,
193 gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsoftlimit,
194 gq_rslt.getquota_rslt_u.gqr_rquota.rq_curblocks,
195 gq_rslt.getquota_rslt_u.gqr_rquota.rq_fhardlimit,
196 gq_rslt.getquota_rslt_u.gqr_rquota.rq_fsoftlimit,
197 gq_rslt.getquota_rslt_u.gqr_rquota.rq_curfiles,
198 gq_rslt.getquota_rslt_u.gqr_rquota.rq_btimeleft,
199 gq_rslt.getquota_rslt_u.gqr_rquota.rq_ftimeleft));
200
201 /*
202 * gqr.status returns
203 * 0 if the rpc call fails,
204 * 1 if quotas exist,
205 * 2 if there is no quota set, and
206 * 3 if no permission to get the quota.
207 */
208
209 switch (gq_rslt.status) {
210 case 0:
211 DEBUG(3, ("sys_get_nfs_quotas: Remote Quotas Failed! "
212 "Error '%i'\n", gq_rslt.status));
213 ret = -1;
214 goto out;
215
216 case 1:
217 DEBUG(10, ("sys_get_nfs_quotas: Good quota data\n"));
218 dp->bsize = (uint64_t)gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsize;
219 dp->softlimit = gq_rslt.getquota_rslt_u.gqr_rquota.rq_bsoftlimit;
220 dp->hardlimit = gq_rslt.getquota_rslt_u.gqr_rquota.rq_bhardlimit;
221 dp->curblocks = gq_rslt.getquota_rslt_u.gqr_rquota.rq_curblocks;
222 break;
223
224 case 2:
225 DEBUG(5, ("sys_get_nfs_quotas: No quota set\n"));
226 SMB_QUOTAS_SET_NO_LIMIT(dp);
227 break;
228
229 case 3:
230 DEBUG(3, ("sys_get_nfs_quotas: no permission to get quota\n"));
231 errno = EPERM;
232 ret = -1;
233 goto out;
234
235 default:
236 DEBUG(5, ("sys_get_nfs_quotas: Unknown remote quota status "
237 "code '%i'\n", gq_rslt.status));
238 ret = -1;
239 goto out;
240 break;
241 }
242
243 dp->qflags = qflags;
244
245 ret = 0;
246
247out:
248 if (clnt) {
249 if (clnt->cl_auth) {
250 auth_destroy(clnt->cl_auth);
251 }
252 clnt_destroy(clnt);
253 }
254
255 SAFE_FREE(cutstr);
256
257 DEBUG(10, ("sys_get_nfs_quotas: finished\n" ));
258 return ret;
259}
260
261int sys_set_nfs_quota(const char *path, const char *bdev,
262 enum SMB_QUOTA_TYPE qtype,
263 unid_t id, SMB_DISK_QUOTA *dp)
264{
265 DEBUG(1, ("sys_set_nfs_quota : not supported\n"));
266 errno = ENOSYS;
267 return -1;
268}
269
270#else /* HAVE_NFS_QUOTAS */
271
272void dummy_sysquotas_nfs(void);
273void dummy_sysquotas_nfs(void) {}
274
275#endif /* HAVE_NFS_QUOTAS */
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