source3/lib/sysquotas_4A.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    System QUOTA function wrappers for QUOTACTL_4A
   4    Copyright (C) Stefan (metze) Metzmacher      2003
   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_QUOTACTL_4A
  28 #undef HAVE_QUOTACTL_4A
  29 #endif
  30 #endif
  31
  32 #ifdef HAVE_QUOTACTL_4A
  33 /* long quotactl(int cmd, char *special, qid_t id, caddr_t addr) */
  34 /* this is used by: HPUX,IRIX */
  35
  36 #ifdef HAVE_SYS_TYPES_H
  37 #include <sys/types.h>
  38 #endif
  39
  40 #ifdef HAVE_ASM_TYPES_H
  41 #include <asm/types.h>
  42 #endif
  43
  44 #ifdef HAVE_SYS_QUOTA_H
  45 #include <sys/quota.h>
  46 #endif
  47
  48 #ifndef Q_SETQLIM
  49 #define Q_SETQLIM Q_SETQUOTA
  50 #endif
  51
  52 #ifndef QCMD
  53 #define QCMD(x,y) x
  54 #endif
  55
  56 #ifndef QCMD
  57 #define QCMD(x,y) x
  58 #endif
  59
  60 #ifdef GRPQUOTA
  61 #define HAVE_GROUP_QUOTA
  62 #endif
  63
  64 #ifndef QUOTABLOCK_SIZE
  65 #define QUOTABLOCK_SIZE DEV_BSIZE
  66 #endif
  67
  68 #ifdef HAVE_DQB_FSOFTLIMIT
  69 #define dqb_isoftlimit  dqb_fsoftlimit
  70 #define dqb_ihardlimit  dqb_fhardlimit
  71 #define dqb_curinodes   dqb_curfiles
  72 #endif
  73
  74 #ifdef INITQFNAMES
  75 #define USERQUOTAFILE_EXTENSION ".user"
  76 #else
  77 #define USERQUOTAFILE_EXTENSION ""
  78 #endif
  79
  80 #if !defined(QUOTAFILENAME) && defined(QFILENAME)
  81 #define QUOTAFILENAME QFILENAME
  82 #endif
  83
  84 /****************************************************************************
  85  Abstract out the quotactl_4A get calls.
  86 ****************************************************************************/
  87 int sys_get_vfs_quota(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
  88 {
  89         int ret = -1;
  90         uint32_t qflags = 0;
  91         struct dqblk D;
  92         uint64_t bsize = (uint64_t)QUOTABLOCK_SIZE;
  93
  94         ZERO_STRUCT(D);
  95         ZERO_STRUCT(*dp);
  96         dp->qtype = qtype;
  97
  98         switch (qtype) {
  99                 case SMB_USER_QUOTA_TYPE:
 100                         DEBUG(10,("sys_get_vfs_quota: path[%s] bdev[%s] SMB_USER_QUOTA_TYPE uid[%u]\n",
 101                                 path, bdev, (unsigned)id.uid));
 102
 103                         if ((ret = quotactl(QCMD(Q_GETQUOTA,USRQUOTA), (caddr_t)bdev, id.uid, (void *)&D))&&errno != EDQUOT) {
 104                                 return ret;
 105                         }
 106
 107                         ret = 0;
 108                         break;
 109 #ifdef HAVE_GROUP_QUOTA
 110                 case SMB_GROUP_QUOTA_TYPE:
 111                         DEBUG(10,("sys_get_vfs_quota: path[%s] bdev[%s] SMB_GROUP_QUOTA_TYPE gid[%u]\n",
 112                                 path, bdev, (unsigned)id.gid));
 113
 114                         if ((ret = quotactl(QCMD(Q_GETQUOTA,GRPQUOTA), (caddr_t)bdev, id.gid, (void *)&D))&&errno != EDQUOT) {
 115                                 return ret;
 116                         }
 117
 118                         ret = 0;
 119                         break;
 120 #endif /* HAVE_GROUP_QUOTA */
 121                 case SMB_USER_FS_QUOTA_TYPE:
 122                         id.uid = getuid();
 123
 124                         DEBUG(10,("sys_get_vfs_quota: path[%s] bdev[%s] SMB_USER_FS_QUOTA_TYPE (uid[%u])\n",
 125                                 path, (caddr_t)bdev, (unsigned)id.uid));
 126
 127                         if ((ret = quotactl(QCMD(Q_GETQUOTA,USRQUOTA), (caddr_t)bdev, id.uid, (void *)&D))==0) {
 128                                 qflags |= QUOTAS_DENY_DISK;
 129                         }
 130
 131                         ret = 0;
 132                         break;
 133 #ifdef HAVE_GROUP_QUOTA
 134                 case SMB_GROUP_FS_QUOTA_TYPE:
 135                         id.gid = getgid();
 136
 137                         DEBUG(10,("sys_get_vfs_quota: path[%s] bdev[%s] SMB_GROUP_FS_QUOTA_TYPE (gid[%u])\n",
 138                                 path, bdev, (unsigned)id.gid));
 139
 140                         if ((ret = quotactl(QCMD(Q_GETQUOTA,GRPQUOTA), (caddr_t)bdev, id.gid, (void *)&D))==0) {
 141                                 qflags |= QUOTAS_DENY_DISK;
 142                         }
 143
 144                         ret = 0;
 145                         break;
 146 #endif /* HAVE_GROUP_QUOTA */
 147                 default:
 148                         errno = ENOSYS;
 149                         return -1;
 150         }
 151
 152         dp->bsize = bsize;
 153         dp->softlimit = (uint64_t)D.dqb_bsoftlimit;
 154         dp->hardlimit = (uint64_t)D.dqb_bhardlimit;
 155         dp->ihardlimit = (uint64_t)D.dqb_ihardlimit;
 156         dp->isoftlimit = (uint64_t)D.dqb_isoftlimit;
 157         dp->curinodes = (uint64_t)D.dqb_curinodes;
 158         dp->curblocks = (uint64_t)D.dqb_curblocks;
 159
 160
 161         dp->qflags = qflags;
 162
 163         return ret;
 164 }
 165
 166 /****************************************************************************
 167  Abstract out the quotactl_4A set calls.
 168 ****************************************************************************/
 169 int sys_set_vfs_quota(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
 170 {
 171         int ret = -1;
 172         uint32_t qflags = 0;
 173         uint32_t oldqflags = 0;
 174         struct dqblk D;
 175         uint64_t bsize = (uint64_t)QUOTABLOCK_SIZE;
 176
 177         ZERO_STRUCT(D);
 178
 179         if (bsize == dp->bsize) {
 180                 D.dqb_bsoftlimit = dp->softlimit;
 181                 D.dqb_bhardlimit = dp->hardlimit;
 182                 D.dqb_ihardlimit = dp->ihardlimit;
 183                 D.dqb_isoftlimit = dp->isoftlimit;
 184         } else {
 185                 D.dqb_bsoftlimit = (dp->softlimit*dp->bsize)/bsize;
 186                 D.dqb_bhardlimit = (dp->hardlimit*dp->bsize)/bsize;
 187                 D.dqb_ihardlimit = (dp->ihardlimit*dp->bsize)/bsize;
 188                 D.dqb_isoftlimit = (dp->isoftlimit*dp->bsize)/bsize;
 189         }
 190
 191         qflags = dp->qflags;
 192
 193         switch (qtype) {
 194                 case SMB_USER_QUOTA_TYPE:
 195                         DEBUG(10,("sys_set_vfs_quota: path[%s] bdev[%s] SMB_USER_QUOTA_TYPE uid[%u]\n",
 196                                 path, bdev, (unsigned)id.uid));
 197
 198                         ret = quotactl(QCMD(Q_SETQLIM,USRQUOTA), (caddr_t)bdev, id.uid, (void *)&D);
 199                         break;
 200 #ifdef HAVE_GROUP_QUOTA
 201                 case SMB_GROUP_QUOTA_TYPE:
 202                         DEBUG(10,("sys_set_vfs_quota: path[%s] bdev[%s] SMB_GROUP_QUOTA_TYPE gid[%u]\n",
 203                                 path, bdev, (unsigned)id.gid));
 204
 205                         ret = quotactl(QCMD(Q_SETQLIM,GRPQUOTA), (caddr_t)bdev, id.gid, (void *)&D);
 206                         break;
 207 #endif /* HAVE_GROUP_QUOTA */
 208                 case SMB_USER_FS_QUOTA_TYPE:
 209                         /* this stuff didn't work as it should:
 210                          * switching on/off quota via quotactl()
 211                          * didn't work!
 212                          * So we just return 0
 213                          * --metze
 214                          *
 215                          * On HPUX we didn't have the mount path,
 216                          * we need to fix sys_path_to_bdev()
 217                          *
 218                          */
 219                         id.uid = getuid();
 220                         DEBUG(10,("sys_set_vfs_quota: path[%s] bdev[%s] SMB_USER_FS_QUOTA_TYPE (uid[%u])\n",
 221                                 path, bdev, (unsigned)id.uid));
 222
 223 #if 0
 224                         ret = quotactl(QCMD(Q_GETQUOTA,USRQUOTA), (caddr_t)bdev, id.uid, (void *)&D);
 225
 226                         if ((qflags&QUOTAS_DENY_DISK)||(qflags&QUOTAS_ENABLED)) {
 227                                 if (ret == 0) {
 228                                         char *quota_file = NULL;
 229
 230                                         asprintf(&quota_file,"/%s/%s%s",path, QUOTAFILENAME,USERQUOTAFILE_EXTENSION);
 231                                         if (quota_file == NULL) {
 232                                                 DEBUG(0,("asprintf() failed!\n"));
 233                                                 errno = ENOMEM;
 234                                                 return -1;
 235                                         }
 236
 237                                         ret = quotactl(QCMD(Q_QUOTAON,USRQUOTA), (caddr_t)bdev, -1,(void *)quota_file);
 238                                 } else {
 239                                         ret = 0;
 240                                 }
 241                         } else {
 242                                 if (ret != 0) {
 243                                         /* turn off */
 244                                         ret = quotactl(QCMD(Q_QUOTAOFF,USRQUOTA), (caddr_t)bdev, -1, (void *)0);
 245                                 } else {
 246                                         ret = 0;
 247                                 }
 248                         }
 249
 250                         DEBUG(0,("sys_set_vfs_quota: ret(%d) errno(%d)[%s] uid(%d) bdev[%s]\n",
 251                                 ret,errno,strerror(errno),id.uid,bdev));
 252 #else
 253                         if ((ret = quotactl(QCMD(Q_GETQUOTA,USRQUOTA), (caddr_t)bdev, id.uid, (void *)&D))==0) {
 254                                 oldqflags |= QUOTAS_DENY_DISK;
 255                         }
 256
 257                         if (oldqflags == qflags) {
 258                                 ret = 0;
 259                         } else {
 260                                 ret = -1;
 261                         }
 262 #endif
 263                         break;
 264 #ifdef HAVE_GROUP_QUOTA
 265                 case SMB_GROUP_FS_QUOTA_TYPE:
 266                         /* this stuff didn't work as it should:
 267                          * switching on/off quota via quotactl()
 268                          * didn't work!
 269                          * So we just return 0
 270                          * --metze
 271                          *
 272                          * On HPUX we didn't have the mount path,
 273                          * we need to fix sys_path_to_bdev()
 274                          *
 275                          */
 276                         id.gid = getgid();
 277                         DEBUG(10,("sys_set_vfs_quota: path[%s] bdev[%s] SMB_GROUP_FS_QUOTA_TYPE (gid[%u])\n",
 278                                 path, bdev, (unsigned)id.gid));
 279
 280 #if 0
 281                         ret = quotactl(QCMD(Q_GETQUOTA,GRPQUOTA), bdev, id, (void *)&D);
 282
 283                         if ((qflags&QUOTAS_DENY_DISK)||(qflags&QUOTAS_ENABLED)) {
 284                                 if (ret == 0) {
 285                                         char *quota_file = NULL;
 286
 287                                         asprintf(&quota_file,"/%s/%s%s",path, QUOTAFILENAME,GROUPQUOTAFILE_EXTENSION);
 288                                         if (quota_file == NULL) {
 289                                                 DEBUG(0,("asprintf() failed!\n"));
 290                                                 errno = ENOMEM;
 291                                                 return -1;
 292                                         }
 293
 294                                         ret = quotactl(QCMD(Q_QUOTAON,GRPQUOTA), (caddr_t)bdev, -1,(void *)quota_file);
 295                                 } else {
 296                                         ret = 0;
 297                                 }
 298                         } else {
 299                                 if (ret != 0) {
 300                                         /* turn off */
 301                                         ret = quotactl(QCMD(Q_QUOTAOFF,GRPQUOTA), (caddr_t)bdev, -1, (void *)0);
 302                                 } else {
 303                                         ret = 0;
 304                                 }
 305                         }
 306
 307                         DEBUG(0,("sys_set_vfs_quota: ret(%d) errno(%d)[%s] uid(%d) bdev[%s]\n",
 308                                 ret,errno,strerror(errno),id.gid,bdev));
 309 #else
 310                         if ((ret = quotactl(QCMD(Q_GETQUOTA,GRPQUOTA), (caddr_t)bdev, id.gid, (void *)&D))==0) {
 311                                 oldqflags |= QUOTAS_DENY_DISK;
 312                         }
 313
 314                         if (oldqflags == qflags) {
 315                                 ret = 0;
 316                         } else {
 317                                 ret = -1;
 318                         }
 319 #endif
 320                         break;
 321 #endif /* HAVE_GROUP_QUOTA */
 322                 default:
 323                         errno = ENOSYS;
 324                         return -1;
 325         }
 326
 327         return ret;
 328 }
 329
 330 #else /* HAVE_QUOTACTL_4A */
 331  void dummy_sysquotas_4A(void);
 332
 333  void dummy_sysquotas_4A(void){}
 334 #endif /* HAVE_QUOTACTL_4A */