2 Unix SMB/CIFS implementation.
3 System QUOTA function wrappers
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/>.
22 #include "lib/util_file.h"
25 #define DBGC_CLASS DBGC_QUOTA
27 #ifdef HAVE_SYS_QUOTAS
29 #if defined(HAVE_QUOTACTL_4A)
31 /*#endif HAVE_QUOTACTL_4A */
32 #elif defined(HAVE_QUOTACTL_4B)
34 /*#endif HAVE_QUOTACTL_4B */
35 #elif defined(HAVE_QUOTACTL_3)
37 #error HAVE_QUOTACTL_3 not implemented
39 /* #endif HAVE_QUOTACTL_3 */
40 #else /* NO_QUOTACTL_USED */
42 #endif /* NO_QUOTACTL_USED */
44 #if defined(HAVE_MNTENT) && defined(HAVE_REALPATH)
45 static int sys_path_to_bdev(const char *path, char **mntpath, char **bdev, char **fs)
50 struct mntent *mnt = NULL;
52 char *stat_mntpath = NULL;
55 /* find the block device file */
60 if (sys_stat(path, &S, false) != 0) {
66 stat_mntpath = sys_realpath(path);
67 if (stat_mntpath == NULL) {
68 DBG_WARNING("realpath(%s) failed - %s\n", path,
73 if (sys_stat(stat_mntpath, &S, false) != 0) {
74 DBG_WARNING("cannot stat real path %s - %s\n", stat_mntpath,
79 if (S.st_ex_dev != devno) {
80 DBG_WARNING("device on real path has changed\n");
87 p = strrchr(stat_mntpath, '/');
89 DBG_ERR("realpath for %s does not begin with a '/'\n",
94 if (p == stat_mntpath) {
100 if (sys_stat(stat_mntpath, &S, false) != 0) {
101 DBG_WARNING("cannot stat real path component %s - %s\n",
102 stat_mntpath, strerror(errno));
105 if (S.st_ex_dev != devno) {
110 if (p <= stat_mntpath + 1) {
115 fp = setmntent(MOUNTED,"r");
120 while ((mnt = getmntent(fp))) {
121 if (!strequal(mnt->mnt_dir, stat_mntpath)) {
125 if ( sys_stat(mnt->mnt_dir, &S, false) == -1 )
128 if (S.st_ex_dev == devno) {
129 (*mntpath) = SMB_STRDUP(mnt->mnt_dir);
130 (*bdev) = SMB_STRDUP(mnt->mnt_fsname);
131 (*fs) = SMB_STRDUP(mnt->mnt_type);
132 if ((*mntpath)&&(*bdev)&&(*fs)) {
148 SAFE_FREE(stat_mntpath);
151 /* #endif HAVE_MNTENT */
152 #elif defined(HAVE_DEVNM)
154 /* we have this on HPUX, ... */
155 static int sys_path_to_bdev(const char *path, char **mntpath, char **bdev, char **fs)
161 if (!path||!mntpath||!bdev||!fs)
162 smb_panic("sys_path_to_bdev: called with NULL pointer");
168 /* find the block device file */
170 if ((ret=sys_stat(path, &S, false))!=0) {
174 if ((ret=devnm(S_IFBLK, S.st_ex_dev, dev_disk, 256, 1))!=0) {
178 /* we should get the mntpath right...
179 * but I don't know how
182 (*mntpath) = SMB_STRDUP(path);
183 (*bdev) = SMB_STRDUP(dev_disk);
184 if ((*mntpath)&&(*bdev)) {
196 /* #endif HAVE_DEVNM */
198 /* we should fake this up...*/
199 static int sys_path_to_bdev(const char *path, char **mntpath, char **bdev, char **fs)
203 if (!path||!mntpath||!bdev||!fs)
204 smb_panic("sys_path_to_bdev: called with NULL pointer");
210 (*mntpath) = SMB_STRDUP(path);
222 /*********************************************************************
223 Now the list of all filesystem specific quota systems we have found
224 **********************************************************************/
227 int (*get_quota)(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp);
228 int (*set_quota)(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp);
229 } sys_quota_backends[] = {
230 #if defined HAVE_XFS_QUOTAS
231 {"xfs", sys_get_xfs_quota, sys_set_xfs_quota},
232 {"gfs", sys_get_xfs_quota, sys_set_xfs_quota},
233 {"gfs2", sys_get_xfs_quota, sys_set_xfs_quota},
234 #endif /* HAVE_XFS_QUOTAS */
235 #ifdef HAVE_NFS_QUOTAS
236 {"nfs", sys_get_nfs_quota, sys_set_nfs_quota},
237 {"nfs4", sys_get_nfs_quota, sys_set_nfs_quota},
238 #endif /* HAVE_NFS_QUOTAS */
242 static int command_get_quota(const char *path, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
244 const char *get_quota_command;
247 get_quota_command = lp_get_quota_command(talloc_tos());
248 if (get_quota_command && *get_quota_command) {
255 case SMB_USER_QUOTA_TYPE:
256 case SMB_USER_FS_QUOTA_TYPE:
259 case SMB_GROUP_QUOTA_TYPE:
260 case SMB_GROUP_FS_QUOTA_TYPE:
264 DEBUG(0,("invalid quota type.\n"));
268 if (asprintf(&syscmd, "%s %s %d %d",
269 get_quota_command, path, qtype, _id) < 0) {
273 DEBUG (3, ("get_quota: Running command %s\n", syscmd));
275 lines = file_lines_pload(talloc_tos(), syscmd, NULL);
279 char *line = lines[0];
281 DEBUG (3, ("Read output from get_quota, \"%s\"\n", line));
283 /* we need to deal with long long unsigned here, if supported */
285 dp->qflags = strtoul(line, &p2, 10);
287 while (p && *p && isspace(*p)) {
292 dp->curblocks = STR_TO_SMB_BIG_UINT(p, &p);
297 while (p && *p && isspace(*p)) {
302 dp->softlimit = STR_TO_SMB_BIG_UINT(p, &p);
307 while (p && *p && isspace(*p)) {
312 dp->hardlimit = STR_TO_SMB_BIG_UINT(p, &p);
317 while (p && *p && isspace(*p)) {
322 dp->curinodes = STR_TO_SMB_BIG_UINT(p, &p);
327 while (p && *p && isspace(*p)) {
332 dp->isoftlimit = STR_TO_SMB_BIG_UINT(p, &p);
337 while (p && *p && isspace(*p)) {
342 dp->ihardlimit = STR_TO_SMB_BIG_UINT(p, &p);
347 while (p && *p && isspace(*p)) {
352 dp->bsize = STR_TO_SMB_BIG_UINT(p, NULL);
360 DEBUG (3, ("Parsed output of get_quota, ...\n"));
363 "qflags:%u curblocks:%llu softlimit:%llu hardlimit:%llu\n"
364 "curinodes:%llu isoftlimit:%llu ihardlimit:%llu bsize:%llu\n",
365 dp->qflags,(long long unsigned)dp->curblocks,
366 (long long unsigned)dp->softlimit,(long long unsigned)dp->hardlimit,
367 (long long unsigned)dp->curinodes,
368 (long long unsigned)dp->isoftlimit,(long long unsigned)dp->ihardlimit,
369 (long long unsigned)dp->bsize));
373 DEBUG (0, ("get_quota_command failed!\n"));
383 DEBUG(0,("The output of get_quota_command is invalid!\n"));
387 static int command_set_quota(const char *path, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
389 const char *set_quota_command;
391 set_quota_command = lp_set_quota_command(talloc_tos());
392 if (set_quota_command && *set_quota_command) {
398 case SMB_USER_QUOTA_TYPE:
399 case SMB_USER_FS_QUOTA_TYPE:
402 case SMB_GROUP_QUOTA_TYPE:
403 case SMB_GROUP_FS_QUOTA_TYPE:
410 if (asprintf(&syscmd,
414 set_quota_command, path, qtype, _id, dp->qflags,
415 (long long unsigned)dp->softlimit,(long long unsigned)dp->hardlimit,
416 (long long unsigned)dp->isoftlimit,(long long unsigned)dp->ihardlimit,
417 (long long unsigned)dp->bsize) < 0) {
421 DEBUG (3, ("get_quota: Running command %s\n", syscmd));
423 lines = file_lines_pload(talloc_tos(), syscmd, NULL);
426 char *line = lines[0];
428 DEBUG (3, ("Read output from set_quota, \"%s\"\n", line));
434 DEBUG (0, ("set_quota_command failed!\n"));
442 int sys_get_quota(const char *path, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
447 char *mntpath = NULL;
452 smb_panic("sys_get_quota: called with NULL pointer");
454 if (command_get_quota(path, qtype, id, dp)==0) {
456 } else if (errno != ENOSYS) {
460 if ((ret=sys_path_to_bdev(path,&mntpath,&bdev,&fs))!=0) {
461 DEBUG(0,("sys_path_to_bdev() failed for path [%s]!\n",path));
466 DEBUG(10,("sys_get_quota() uid(%u, %u), fs(%s)\n", (unsigned)getuid(), (unsigned)geteuid(), fs));
468 for (i=0;(fs && sys_quota_backends[i].name && sys_quota_backends[i].get_quota);i++) {
469 if (strcmp(fs,sys_quota_backends[i].name)==0) {
470 ret = sys_quota_backends[i].get_quota(mntpath, bdev, qtype, id, dp);
472 DEBUG(3,("sys_get_%s_quota() failed for mntpath[%s] bdev[%s] qtype[%d] id[%d]: %s.\n",
473 fs,mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid),strerror(errno)));
475 DEBUG(10,("sys_get_%s_quota() called for mntpath[%s] bdev[%s] qtype[%d] id[%d].\n",
476 fs,mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid)));
484 /* use the default vfs quota functions */
485 ret=sys_get_vfs_quota(mntpath, bdev, qtype, id, dp);
487 DEBUG(3,("sys_get_%s_quota() failed for mntpath[%s] bdev[%s] qtype[%d] id[%d]: %s\n",
488 "vfs",mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid),strerror(errno)));
490 DEBUG(10,("sys_get_%s_quota() called for mntpath[%s] bdev[%s] qtype[%d] id[%d].\n",
491 "vfs",mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid)));
502 int sys_set_quota(const char *path, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
507 char *mntpath = NULL;
511 /* find the block device file */
514 smb_panic("get_smb_quota: called with NULL pointer");
516 if (command_set_quota(path, qtype, id, dp)==0) {
518 } else if (errno != ENOSYS) {
522 if ((ret=sys_path_to_bdev(path,&mntpath,&bdev,&fs))!=0) {
523 DEBUG(0,("sys_path_to_bdev() failed for path [%s]!\n",path));
528 DEBUG(10,("sys_set_quota() uid(%u, %u)\n", (unsigned)getuid(), (unsigned)geteuid()));
530 for (i=0;(fs && sys_quota_backends[i].name && sys_quota_backends[i].set_quota);i++) {
531 if (strcmp(fs,sys_quota_backends[i].name)==0) {
532 ret = sys_quota_backends[i].set_quota(mntpath, bdev, qtype, id, dp);
534 DEBUG(3,("sys_set_%s_quota() failed for mntpath[%s] bdev[%s] qtype[%d] id[%d]: %s.\n",
535 fs,mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid),strerror(errno)));
537 DEBUG(10,("sys_set_%s_quota() called for mntpath[%s] bdev[%s] qtype[%d] id[%d].\n",
538 fs,mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid)));
546 /* use the default vfs quota functions */
547 ret=sys_set_vfs_quota(mntpath, bdev, qtype, id, dp);
549 DEBUG(3,("sys_set_%s_quota() failed for mntpath[%s] bdev[%s] qtype[%d] id[%d]: %s.\n",
550 "vfs",mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid),strerror(errno)));
552 DEBUG(10,("sys_set_%s_quota() called for mntpath[%s] bdev[%s] qtype[%d] id[%d].\n",
553 "vfs",mntpath,bdev,qtype,(qtype==SMB_GROUP_QUOTA_TYPE?id.gid:id.uid)));
564 #else /* HAVE_SYS_QUOTAS */
565 void dummy_sysquotas_c(void);
567 void dummy_sysquotas_c(void)
571 #endif /* HAVE_SYS_QUOTAS */