4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2017, DataDirect Networks Storage.
24 * Copyright (c) 2017, Intel Corporation.
27 * This file is part of Lustre, http://www.lustre.org/
29 * lustre/utils/lfs_project.c
31 * Author: Wang Shilong <wshilong@ddn.com>
32 * Author: Fan Yong <fan.yong@intel.com>
45 #include <sys/types.h>
47 #include <libcfs/util/list.h>
48 #include <libcfs/util/ioctl.h>
49 #include <sys/ioctl.h>
51 #include "lfs_project.h"
52 #include <lustre/lustreapi.h>
54 struct lfs_project_item {
55 struct list_head lpi_list;
56 char lpi_pathname[PATH_MAX];
60 lfs_project_item_alloc(struct list_head *head, const char *pathname)
62 struct lfs_project_item *lpi;
64 lpi = malloc(sizeof(struct lfs_project_item));
67 "%s: cannot allocate project item for '%s': %s\n",
68 progname, pathname, strerror(ENOMEM));
72 strncpy(lpi->lpi_pathname, pathname, sizeof(lpi->lpi_pathname) - 1);
73 list_add_tail(&lpi->lpi_list, head);
78 static const char *mode_to_type(mode_t mode)
80 switch (mode & S_IFMT) {
81 case S_IFDIR: return "dir";
82 case S_IFREG: return "regular";
83 case S_IFLNK: return "symlink";
84 case S_IFCHR: return "char device";
85 case S_IFBLK: return "block device";
86 case S_IFIFO: return "fifo";
87 case S_IFSOCK: return "sock";
93 static int project_get_xattr(const char *pathname, struct fsxattr *fsx,
98 ret = lstat(pathname, st);
100 fprintf(stderr, "%s: failed to stat '%s': %s\n",
101 progname, pathname, strerror(errno));
105 /* currently, only file and dir supported */
106 if (!S_ISREG(st->st_mode) && !S_ISDIR(st->st_mode)) {
108 fprintf(stderr, "%s: unable to get xattr for %s '%s': %s\n",
109 progname, mode_to_type(st->st_mode), pathname,
114 fd = open(pathname, O_RDONLY | O_NOCTTY | O_NDELAY);
116 fprintf(stderr, "%s: failed to open '%s': %s\n",
117 progname, pathname, strerror(errno));
121 ret = ioctl(fd, LL_IOC_FSGETXATTR, fsx);
123 fprintf(stderr, "%s: failed to get xattr for '%s': %s\n",
124 progname, pathname, strerror(errno));
132 project_check_one(const char *pathname, struct project_handle_control *phc)
138 ret = project_get_xattr(pathname, &fsx, &st);
142 /* use top directory's project ID if not specified */
143 if (!phc->assign_projid) {
144 phc->assign_projid = true;
145 phc->projid = fsx.fsx_projid;
148 if (!(fsx.fsx_xflags & FS_XFLAG_PROJINHERIT) &&
149 S_ISDIR(st.st_mode)) {
151 printf("%s%c", pathname, '\0');
154 printf("%s - project inheritance flag is not set\n",
158 if (fsx.fsx_projid != phc->projid) {
160 printf("%s%c", pathname, '\0');
163 printf("%s - project identifier is not set (inode=%u, tree=%u)\n",
164 pathname, fsx.fsx_projid, phc->projid);
172 project_list_one(const char *pathname, struct project_handle_control *phc)
178 ret = project_get_xattr(pathname, &fsx, &st);
182 printf("%5u %c %s\n", fsx.fsx_projid,
183 (fsx.fsx_xflags & FS_XFLAG_PROJINHERIT) ?
184 'P' : '-', pathname);
191 project_set_one(const char *pathname, struct project_handle_control *phc)
197 fd = project_get_xattr(pathname, &fsx, &st);
201 if ((!phc->set_projid || fsx.fsx_projid == phc->projid) &&
202 (!phc->set_inherit || (fsx.fsx_xflags & FS_XFLAG_PROJINHERIT)))
205 if (phc->set_inherit)
206 fsx.fsx_xflags |= FS_XFLAG_PROJINHERIT;
208 fsx.fsx_projid = phc->projid;
210 ret = ioctl(fd, LL_IOC_FSSETXATTR, &fsx);
212 fprintf(stderr, "%s: failed to set xattr for '%s': %s\n",
213 progname, pathname, strerror(errno));
220 project_clear_one(const char *pathname, struct project_handle_control *phc)
226 fd = project_get_xattr(pathname, &fsx, &st);
230 if ((!(fsx.fsx_xflags & FS_XFLAG_PROJINHERIT)) &&
231 (fsx.fsx_projid == 0 || phc->keep_projid))
234 fsx.fsx_xflags &= ~FS_XFLAG_PROJINHERIT;
235 if (!phc->keep_projid)
238 ret = ioctl(fd, LL_IOC_FSSETXATTR, &fsx);
240 fprintf(stderr, "%s: failed to set xattr for '%s': %s\n",
241 progname, pathname, strerror(errno));
248 lfs_project_handle_dir(struct list_head *head, const char *pathname,
249 struct project_handle_control *phc,
250 int (*func)(const char *,
251 struct project_handle_control *))
253 char fullname[PATH_MAX];
259 dir = opendir(pathname);
262 fprintf(stderr, "%s: failed to opendir '%s': %s\n",
263 progname, pathname, strerror(-ret));
267 while ((ent = readdir(dir)) != NULL) {
268 /* skip "." and ".." */
269 if (strcmp(ent->d_name, ".") == 0 ||
270 strcmp(ent->d_name, "..") == 0)
273 if (strlen(ent->d_name) + strlen(pathname) + 1 >=
276 errno = ENAMETOOLONG;
277 fprintf(stderr, "%s: ignored too long path: %s/%s\n",
278 progname, pathname, ent->d_name);
281 snprintf(fullname, PATH_MAX, "%s/%s", pathname,
284 rc = func(fullname, phc);
287 if (phc->recursive && ent->d_type == DT_DIR) {
288 rc = lfs_project_item_alloc(head, fullname);
298 static int lfs_project_iterate(const char *pathname,
299 struct project_handle_control *phc,
300 int (*func)(const char *,
301 struct project_handle_control *))
303 struct lfs_project_item *lpi;
304 struct list_head head;
309 ret = stat(pathname, &st);
311 fprintf(stderr, "%s: failed to stat '%s': %s\n",
312 progname, pathname, strerror(errno));
316 /* list opeation will skip top directory in default */
317 if (!S_ISDIR(st.st_mode) || phc->dironly ||
318 project_list_one != func)
319 ret = func(pathname, phc);
321 /* dironly first, recursive will be ignored */
322 if (!S_ISDIR(st.st_mode) || phc->dironly || ret)
325 INIT_LIST_HEAD(&head);
326 ret = lfs_project_item_alloc(&head, pathname);
330 while (!list_empty(&head)) {
331 lpi = list_entry(head.next, struct lfs_project_item, lpi_list);
332 list_del(&lpi->lpi_list);
333 rc = lfs_project_handle_dir(&head, lpi->lpi_pathname,
344 inline int lfs_project_check(const char *pathname,
345 struct project_handle_control *phc)
347 return lfs_project_iterate(pathname, phc, project_check_one);
350 inline int lfs_project_clear(const char *pathname,
351 struct project_handle_control *phc)
353 return lfs_project_iterate(pathname, phc, project_clear_one);
356 inline int lfs_project_set(const char *pathname,
357 struct project_handle_control *phc)
359 return lfs_project_iterate(pathname, phc, project_set_one);
362 inline int lfs_project_list(const char *pathname,
363 struct project_handle_control *phc)
365 return lfs_project_iterate(pathname, phc, project_list_one);