s3:smbd: s/struct timed_event/struct tevent_timer
[Samba/gebeck_regimport.git] / source3 / smbd / ntquotas.c
blob15fd35b92e4d9c7cb004e714bbdd3e058aa8f09c
1 /*
2 Unix SMB/CIFS implementation.
3 NT QUOTA suppport
4 Copyright (C) Stefan (metze) Metzmacher 2003
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.
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.
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/>.
20 #include "includes.h"
21 #include "smbd/smbd.h"
22 #include "../lib/util/util_pw.h"
23 #include "system/passwd.h"
24 #include "passdb/lookup_sid.h"
25 #include "libsmb/libsmb.h"
27 #undef DBGC_CLASS
28 #define DBGC_CLASS DBGC_QUOTA
30 static uint64_t limit_nt2unix(uint64_t in, uint64_t bsize)
32 uint64_t ret = (uint64_t)0;
34 ret = (uint64_t)(in/bsize);
35 if (in>0 && ret==0) {
36 /* we have to make sure that a overflow didn't set NO_LIMIT */
37 ret = (uint64_t)1;
40 if (in == SMB_NTQUOTAS_NO_LIMIT)
41 ret = SMB_QUOTAS_NO_LIMIT;
42 else if (in == SMB_NTQUOTAS_NO_SPACE)
43 ret = SMB_QUOTAS_NO_SPACE;
44 else if (in == SMB_NTQUOTAS_NO_ENTRY)
45 ret = SMB_QUOTAS_NO_LIMIT;
47 return ret;
50 static uint64_t limit_unix2nt(uint64_t in, uint64_t bsize)
52 uint64_t ret = (uint64_t)0;
54 ret = (uint64_t)(in*bsize);
56 if (ret < in) {
57 /* we overflow */
58 ret = SMB_NTQUOTAS_NO_LIMIT;
61 if (in == SMB_QUOTAS_NO_LIMIT)
62 ret = SMB_NTQUOTAS_NO_LIMIT;
64 return ret;
67 static uint64_t limit_blk2inodes(uint64_t in)
69 uint64_t ret = (uint64_t)0;
71 ret = (uint64_t)(in/2);
73 if (ret == 0 && in != 0)
74 ret = (uint64_t)1;
76 return ret;
79 int vfs_get_ntquota(files_struct *fsp, enum SMB_QUOTA_TYPE qtype, struct dom_sid *psid, SMB_NTQUOTA_STRUCT *qt)
81 int ret;
82 SMB_DISK_QUOTA D;
83 unid_t id;
85 ZERO_STRUCT(D);
87 if (!fsp||!fsp->conn||!qt)
88 return (-1);
90 ZERO_STRUCT(*qt);
92 id.uid = -1;
94 if (psid && !sid_to_uid(psid, &id.uid)) {
95 DEBUG(0,("sid_to_uid: failed, SID[%s]\n",
96 sid_string_dbg(psid)));
99 ret = SMB_VFS_GET_QUOTA(fsp->conn, qtype, id, &D);
101 if (psid)
102 qt->sid = *psid;
104 if (ret!=0) {
105 return ret;
108 qt->usedspace = (uint64_t)D.curblocks*D.bsize;
109 qt->softlim = limit_unix2nt(D.softlimit, D.bsize);
110 qt->hardlim = limit_unix2nt(D.hardlimit, D.bsize);
111 qt->qflags = D.qflags;
114 return 0;
117 int vfs_set_ntquota(files_struct *fsp, enum SMB_QUOTA_TYPE qtype, struct dom_sid *psid, SMB_NTQUOTA_STRUCT *qt)
119 int ret;
120 SMB_DISK_QUOTA D;
121 unid_t id;
122 ZERO_STRUCT(D);
124 if (!fsp||!fsp->conn||!qt)
125 return (-1);
127 id.uid = -1;
129 D.bsize = (uint64_t)QUOTABLOCK_SIZE;
131 D.softlimit = limit_nt2unix(qt->softlim,D.bsize);
132 D.hardlimit = limit_nt2unix(qt->hardlim,D.bsize);
133 D.qflags = qt->qflags;
135 D.isoftlimit = limit_blk2inodes(D.softlimit);
136 D.ihardlimit = limit_blk2inodes(D.hardlimit);
138 if (psid && !sid_to_uid(psid, &id.uid)) {
139 DEBUG(0,("sid_to_uid: failed, SID[%s]\n",
140 sid_string_dbg(psid)));
143 ret = SMB_VFS_SET_QUOTA(fsp->conn, qtype, id, &D);
145 return ret;
148 static bool allready_in_quota_list(SMB_NTQUOTA_LIST *qt_list, uid_t uid)
150 SMB_NTQUOTA_LIST *tmp_list = NULL;
152 if (!qt_list)
153 return False;
155 for (tmp_list=qt_list;tmp_list!=NULL;tmp_list=tmp_list->next) {
156 if (tmp_list->uid == uid) {
157 return True;
161 return False;
164 int vfs_get_user_ntquota_list(files_struct *fsp, SMB_NTQUOTA_LIST **qt_list)
166 struct passwd *usr;
167 TALLOC_CTX *mem_ctx = NULL;
169 if (!fsp||!fsp->conn||!qt_list)
170 return (-1);
172 *qt_list = NULL;
174 if ((mem_ctx=talloc_init("SMB_USER_QUOTA_LIST"))==NULL) {
175 DEBUG(0,("talloc_init() failed\n"));
176 return (-1);
179 setpwent();
180 while ((usr = getpwent()) != NULL) {
181 SMB_NTQUOTA_STRUCT tmp_qt;
182 SMB_NTQUOTA_LIST *tmp_list_ent;
183 struct dom_sid sid;
185 ZERO_STRUCT(tmp_qt);
187 if (allready_in_quota_list((*qt_list),usr->pw_uid)) {
188 DEBUG(5,("record for uid[%ld] allready in the list\n",(long)usr->pw_uid));
189 continue;
192 uid_to_sid(&sid, usr->pw_uid);
194 if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &tmp_qt)!=0) {
195 DEBUG(5,("no quota entry for sid[%s] path[%s]\n",
196 sid_string_dbg(&sid),
197 fsp->conn->connectpath));
198 continue;
201 DEBUG(15,("quota entry for id[%s] path[%s]\n",
202 sid_string_dbg(&sid), fsp->conn->connectpath));
204 if ((tmp_list_ent=talloc_zero(mem_ctx,SMB_NTQUOTA_LIST))==NULL) {
205 DEBUG(0,("TALLOC_ZERO() failed\n"));
206 *qt_list = NULL;
207 talloc_destroy(mem_ctx);
208 return (-1);
211 if ((tmp_list_ent->quotas=talloc_zero(mem_ctx,SMB_NTQUOTA_STRUCT))==NULL) {
212 DEBUG(0,("TALLOC_ZERO() failed\n"));
213 *qt_list = NULL;
214 talloc_destroy(mem_ctx);
215 return (-1);
218 tmp_list_ent->uid = usr->pw_uid;
219 memcpy(tmp_list_ent->quotas,&tmp_qt,sizeof(tmp_qt));
220 tmp_list_ent->mem_ctx = mem_ctx;
222 DLIST_ADD((*qt_list),tmp_list_ent);
225 endpwent();
227 return 0;
230 static int quota_handle_destructor(SMB_NTQUOTA_HANDLE *handle)
232 if (handle->quota_list)
233 free_ntquota_list(&handle->quota_list);
234 return 0;
237 void *init_quota_handle(TALLOC_CTX *mem_ctx)
239 SMB_NTQUOTA_HANDLE *qt_handle;
241 if (!mem_ctx)
242 return NULL;
244 qt_handle = talloc_zero(mem_ctx,SMB_NTQUOTA_HANDLE);
245 if (qt_handle==NULL) {
246 DEBUG(0,("TALLOC_ZERO() failed\n"));
247 return NULL;
250 talloc_set_destructor(qt_handle, quota_handle_destructor);
251 return (void *)qt_handle;