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) 2013, Trustees of Indiana University
25 * Copyright (c) 2014, 2017, Intel Corporation.
27 * Author: Joshua Walgenbach <jjw@iu.edu>
30 #define NODEMAP_LPROC_ID_LEN 16
31 #define NODEMAP_LPROC_FLAG_LEN 2
33 #include <lprocfs_status.h>
34 #include <lustre_net.h>
35 #include <lustre_export.h>
36 #include <obd_class.h>
37 #include <interval_tree.h>
38 #include "nodemap_internal.h"
40 static LIST_HEAD(nodemap_pde_list);
43 * Reads and prints the idmap for the given nodemap.
45 * \param m seq file in proc fs
49 static int nodemap_idmap_show(struct seq_file *m, void *data)
51 struct lu_nodemap *nodemap;
52 struct lu_idmap *idmap;
57 mutex_lock(&active_config_lock);
58 nodemap = nodemap_lookup(m->private);
59 mutex_unlock(&active_config_lock);
60 if (IS_ERR(nodemap)) {
61 rc = PTR_ERR(nodemap);
62 CERROR("cannot find nodemap '%s': rc = %d\n",
63 (char *)m->private, rc);
68 down_read(&nodemap->nm_idmap_lock);
69 for (node = rb_first(&nodemap->nm_client_to_fs_uidmap); node;
70 node = rb_next(node)) {
74 idmap = rb_entry(node, struct lu_idmap, id_client_to_fs);
76 seq_printf(m, " { idtype: uid, client_id: %u, "
77 "fs_id: %u }", idmap->id_client,
80 for (node = rb_first(&nodemap->nm_client_to_fs_gidmap);
81 node; node = rb_next(node)) {
84 idmap = rb_entry(node, struct lu_idmap, id_client_to_fs);
86 seq_printf(m, " { idtype: gid, client_id: %u, "
87 "fs_id: %u }", idmap->id_client,
90 up_read(&nodemap->nm_idmap_lock);
94 nodemap_putref(nodemap);
99 * Attaches nodemap_idmap_show to proc file.
101 * \param inode inode of seq file in proc fs
102 * \param file seq file
105 static int nodemap_idmap_open(struct inode *inode, struct file *file)
107 return single_open(file, nodemap_idmap_show, PDE_DATA(inode));
111 * Reads and prints the NID ranges for the given nodemap.
113 * \param m seq file in proc fs
117 static int nodemap_ranges_show(struct seq_file *m, void *data)
119 struct lu_nodemap *nodemap;
120 struct lu_nid_range *range;
121 struct interval_node_extent ext;
122 char start_nidstr[LNET_NIDSTR_SIZE];
123 char end_nidstr[LNET_NIDSTR_SIZE];
127 mutex_lock(&active_config_lock);
128 nodemap = nodemap_lookup(m->private);
129 if (IS_ERR(nodemap)) {
130 mutex_unlock(&active_config_lock);
131 rc = PTR_ERR(nodemap);
132 CERROR("cannot find nodemap '%s': rc = %d\n",
133 (char *)m->private, rc);
137 seq_printf(m, "[\n");
138 down_read(&active_config->nmc_range_tree_lock);
139 list_for_each_entry(range, &nodemap->nm_ranges, rn_list) {
141 seq_printf(m, ",\n");
143 ext = range->rn_node.in_extent;
144 libcfs_nid2str_r(ext.start, start_nidstr, sizeof(start_nidstr));
145 libcfs_nid2str_r(ext.end, end_nidstr, sizeof(end_nidstr));
146 seq_printf(m, " { id: %u, start_nid: %s, end_nid: %s }",
147 range->rn_id, start_nidstr, end_nidstr);
149 up_read(&active_config->nmc_range_tree_lock);
150 mutex_unlock(&active_config_lock);
152 seq_printf(m, "]\n");
154 nodemap_putref(nodemap);
159 * Connects nodemap_idmap_show to proc file.
161 * \param inode inode of seq file in proc fs
162 * \param file seq file
165 static int nodemap_ranges_open(struct inode *inode, struct file *file)
167 return single_open(file, nodemap_ranges_show, PDE_DATA(inode));
171 * Reads and prints the fileset for the given nodemap.
173 * \param m seq file in proc fs
177 static int nodemap_fileset_seq_show(struct seq_file *m, void *data)
179 struct lu_nodemap *nodemap;
182 mutex_lock(&active_config_lock);
183 nodemap = nodemap_lookup(m->private);
184 mutex_unlock(&active_config_lock);
185 if (IS_ERR(nodemap)) {
186 rc = PTR_ERR(nodemap);
187 CERROR("cannot find nodemap '%s': rc = %d\n",
188 (char *)m->private, rc);
192 seq_printf(m, "%s\n", nodemap->nm_fileset);
193 nodemap_putref(nodemap);
198 * Set a fileset on a nodemap.
200 * \param[in] file proc file
201 * \param[in] buffer string, "<fileset>"
202 * \param[in] count \a buffer length
203 * \param[in] off unused
204 * \retval \a count on success
205 * \retval negative number on error
208 nodemap_fileset_seq_write(struct file *file,
209 const char __user *buffer,
210 size_t count, loff_t *off)
212 struct seq_file *m = file->private_data;
220 if (count > PATH_MAX)
223 OBD_ALLOC(nm_fileset, count + 1);
224 /* OBD_ALLOC zero-fills the buffer */
225 if (nm_fileset == NULL)
228 if (copy_from_user(nm_fileset, buffer, count))
229 GOTO(out, rc = -EFAULT);
231 rc = nodemap_set_fileset(m->private, nm_fileset);
233 GOTO(out, rc = -EINVAL);
237 OBD_FREE(nm_fileset, count + 1);
241 LPROC_SEQ_FOPS(nodemap_fileset);
244 * Reads and prints the exports attached to the given nodemap.
246 * \param m seq file in proc fs, stores nodemap
250 static int nodemap_exports_show(struct seq_file *m, void *data)
252 struct lu_nodemap *nodemap;
253 struct obd_export *exp;
254 char nidstr[LNET_NIDSTR_SIZE] = "<unknown>";
257 mutex_lock(&active_config_lock);
258 nodemap = nodemap_lookup(m->private);
259 mutex_unlock(&active_config_lock);
260 if (IS_ERR(nodemap)) {
261 rc = PTR_ERR(nodemap);
262 CERROR("cannot find nodemap '%s': rc = %d\n",
263 (char *)m->private, rc);
267 seq_printf(m, "[\n");
269 mutex_lock(&nodemap->nm_member_list_lock);
270 list_for_each_entry(exp, &nodemap->nm_member_list,
271 exp_target_data.ted_nodemap_member) {
272 if (exp->exp_connection != NULL)
273 libcfs_nid2str_r(exp->exp_connection->c_peer.nid,
274 nidstr, sizeof(nidstr));
276 seq_printf(m, " { nid: %s, uuid: %s },",
277 nidstr, exp->exp_client_uuid.uuid);
279 mutex_unlock(&nodemap->nm_member_list_lock);
282 seq_printf(m, "]\n");
284 nodemap_putref(nodemap);
289 * Attaches nodemap_idmap_show to proc file.
291 * \param inode inode of seq file in proc fs
292 * \param file seq file
295 static int nodemap_exports_open(struct inode *inode, struct file *file)
297 return single_open(file, nodemap_exports_show, PDE_DATA(inode));
301 * Reads and prints the active flag for the given nodemap.
303 * \param m seq file in proc fs
307 static int nodemap_active_seq_show(struct seq_file *m, void *data)
309 seq_printf(m, "%u\n", (unsigned int)nodemap_active);
314 * Activate/deactivate nodemap.
316 * \param[in] file proc file
317 * \param[in] buffer string, "1" or "0" to activate/deactivate nodemap
318 * \param[in] count \a buffer length
319 * \param[in] off unused
320 * \retval \a count on success
321 * \retval negative number on error
324 nodemap_active_seq_write(struct file *file, const char __user *buffer,
325 size_t count, loff_t *off)
327 char active_string[NODEMAP_LPROC_FLAG_LEN + 1];
328 long unsigned int active;
334 if (count >= sizeof(active_string))
337 if (copy_from_user(active_string, buffer, count))
340 active_string[count] = '\0';
341 rc = kstrtoul(active_string, 10, &active);
345 nodemap_activate(active);
349 LPROC_SEQ_FOPS(nodemap_active);
352 * Reads and prints the nodemap ID for the given nodemap.
354 * \param m seq file in proc fs
358 static int nodemap_id_seq_show(struct seq_file *m, void *data)
360 struct lu_nodemap *nodemap;
362 mutex_lock(&active_config_lock);
363 nodemap = nodemap_lookup(m->private);
364 mutex_unlock(&active_config_lock);
365 if (IS_ERR(nodemap)) {
366 int rc = PTR_ERR(nodemap);
367 CERROR("cannot find nodemap '%s': rc = %d\n",
368 (char *)m->private, rc);
372 seq_printf(m, "%u\n", nodemap->nm_id);
373 nodemap_putref(nodemap);
376 LPROC_SEQ_FOPS_RO(nodemap_id);
379 * Reads and prints the root squash UID for the given nodemap.
381 * \param m seq file in proc fs
385 static int nodemap_squash_uid_seq_show(struct seq_file *m, void *data)
387 struct lu_nodemap *nodemap;
389 mutex_lock(&active_config_lock);
390 nodemap = nodemap_lookup(m->private);
391 mutex_unlock(&active_config_lock);
392 if (IS_ERR(nodemap)) {
393 int rc = PTR_ERR(nodemap);
394 CERROR("cannot find nodemap '%s': rc = %d\n",
395 (char *)m->private, rc);
399 seq_printf(m, "%u\n", nodemap->nm_squash_uid);
400 nodemap_putref(nodemap);
405 * Reads and prints the root squash GID for the given nodemap.
407 * \param m seq file in proc fs
411 static int nodemap_squash_gid_seq_show(struct seq_file *m, void *data)
413 struct lu_nodemap *nodemap;
415 mutex_lock(&active_config_lock);
416 nodemap = nodemap_lookup(m->private);
417 mutex_unlock(&active_config_lock);
418 if (IS_ERR(nodemap)) {
419 int rc = PTR_ERR(nodemap);
420 CERROR("cannot find nodemap '%s': rc = %d\n",
421 (char *)m->private, rc);
425 seq_printf(m, "%u\n", nodemap->nm_squash_gid);
426 nodemap_putref(nodemap);
431 * Reads and prints the trusted flag for the given nodemap.
433 * \param m seq file in proc fs
437 static int nodemap_trusted_seq_show(struct seq_file *m, void *data)
439 struct lu_nodemap *nodemap;
441 mutex_lock(&active_config_lock);
442 nodemap = nodemap_lookup(m->private);
443 mutex_unlock(&active_config_lock);
444 if (IS_ERR(nodemap)) {
445 int rc = PTR_ERR(nodemap);
447 CERROR("cannot find nodemap '%s': rc = %d\n",
448 (char *)m->private, rc);
452 seq_printf(m, "%d\n", (int)nodemap->nmf_trust_client_ids);
453 nodemap_putref(nodemap);
458 * Reads and prints the admin flag for the given nodemap.
460 * \param m seq file in proc fs
464 static int nodemap_admin_seq_show(struct seq_file *m, void *data)
466 struct lu_nodemap *nodemap;
469 mutex_lock(&active_config_lock);
470 nodemap = nodemap_lookup(m->private);
471 mutex_unlock(&active_config_lock);
472 if (IS_ERR(nodemap)) {
473 rc = PTR_ERR(nodemap);
474 CERROR("cannot find nodemap '%s': rc = %d\n",
475 (char *)m->private, rc);
479 seq_printf(m, "%d\n", (int)nodemap->nmf_allow_root_access);
480 nodemap_putref(nodemap);
485 * Reads and prints the mapping mode for the given nodemap.
487 * \param m seq file in proc fs
491 static int nodemap_map_mode_seq_show(struct seq_file *m, void *data)
493 struct lu_nodemap *nodemap;
496 mutex_lock(&active_config_lock);
497 nodemap = nodemap_lookup(m->private);
498 mutex_unlock(&active_config_lock);
499 if (IS_ERR(nodemap)) {
500 rc = PTR_ERR(nodemap);
501 CERROR("cannot find nodemap '%s': rc = %d\n",
502 (char *)m->private, rc);
506 if (nodemap->nmf_map_uid_only)
507 seq_printf(m, "uid_only\n");
508 else if (nodemap->nmf_map_gid_only)
509 seq_printf(m, "gid_only\n");
511 seq_printf(m, "both\n");
513 nodemap_putref(nodemap);
518 * Reads and prints the deny_unknown flag for the given nodemap.
520 * \param m seq file in proc fs
524 static int nodemap_deny_unknown_seq_show(struct seq_file *m, void *data)
526 struct lu_nodemap *nodemap;
529 mutex_lock(&active_config_lock);
530 nodemap = nodemap_lookup(m->private);
531 mutex_unlock(&active_config_lock);
532 if (IS_ERR(nodemap)) {
533 rc = PTR_ERR(nodemap);
534 CERROR("cannot find nodemap '%s': rc = %d\n",
535 (char *)m->private, rc);
539 seq_printf(m, "%d\n", (int)nodemap->nmf_deny_unknown);
540 nodemap_putref(nodemap);
544 #ifdef NODEMAP_PROC_DEBUG
546 * Helper functions to set nodemap flags.
548 * \param[in] buffer string, which is "1" or "0" to set/unset flag
549 * \param[in] count \a buffer length
550 * \param[out] flag_p where to store flag value
551 * \retval \a count on success
552 * \retval negative number on error
554 static int nodemap_proc_read_flag(const char __user *buffer,
555 unsigned long count, unsigned int *flag_p)
557 char scratch[NODEMAP_LPROC_FLAG_LEN + 1];
558 long unsigned int flag_buf;
564 if (count >= sizeof(scratch))
567 if (copy_from_user(scratch, buffer, count))
570 scratch[count] = '\0';
571 rc = kstrtoul(scratch, 10, &flag_buf);
581 * Set the squash UID.
583 * \param[in] file proc file
584 * \param[in] buffer string representing squash UID to set
585 * \param[in] count \a buffer length
586 * \param[in] off unused
587 * \retval \a count on success
588 * \retval negative number on error
591 nodemap_squash_uid_seq_write(struct file *file, const char __user *buffer,
592 size_t count, loff_t *off)
594 char squash[NODEMAP_LPROC_ID_LEN + 1];
595 struct seq_file *m = file->private_data;
596 long unsigned int squash_uid;
602 if (count >= sizeof(squash))
605 if (copy_from_user(squash, buffer, count))
608 squash[count] = '\0';
609 rc = kstrtoul(squash, 10, &squash_uid);
613 rc = nodemap_set_squash_uid(m->private, squash_uid);
621 * Set the squash GID.
623 * \param[in] file proc file
624 * \param[in] buffer string representing squash GID to set
625 * \param[in] count \a buffer length
626 * \param[in] off unused
627 * \retval \a count on success
628 * \retval negative number on error
631 nodemap_squash_gid_seq_write(struct file *file, const char __user *buffer,
632 size_t count, loff_t *off)
634 char squash[NODEMAP_LPROC_ID_LEN + 1];
635 struct seq_file *m = file->private_data;
636 long unsigned int squash_gid;
642 if (count >= sizeof(squash))
645 if (copy_from_user(squash, buffer, count))
648 squash[count] = '\0';
649 rc = kstrtoul(squash, 10, &squash_gid);
653 rc = nodemap_set_squash_gid(m->private, squash_gid);
661 * Set/unset the trusted flag.
663 * \param[in] file proc file
664 * \param[in] buffer string, "1" or "0"
665 * \param[in] count \a buffer length
666 * \param[in] off unused
667 * \retval \a count on success
668 * \retval negative number on error
671 nodemap_trusted_seq_write(struct file *file, const char __user *buffer,
672 size_t count, loff_t *off)
674 struct seq_file *m = file->private_data;
678 rc = nodemap_proc_read_flag(buffer, count, &flags);
682 rc = nodemap_set_trust_client_ids(m->private, flags);
690 * Set/unset the admin flag.
692 * \param[in] file proc file
693 * \param[in] buffer string, "1" or "0"
694 * \param[in] count \a buffer length
695 * \param[in] off unused
696 * \retval \a count on success
697 * \retval negative number on error
700 nodemap_admin_seq_write(struct file *file, const char __user *buffer,
701 size_t count, loff_t *off)
703 struct seq_file *m = file->private_data;
707 rc = nodemap_proc_read_flag(buffer, count, &flags);
711 rc = nodemap_set_allow_root(m->private, flags);
721 * \param[in] file proc file
722 * \param[in] buffer string, name of the nodemap to add
723 * \param[in] count \a buffer length
724 * \param[in] off unused
725 * \retval \a count on success
726 * \retval negative number on error
729 lprocfs_add_nodemap_seq_write(struct file *file, const char __user *buffer,
730 size_t count, loff_t *off)
732 char nodemap_name[LUSTRE_NODEMAP_NAME_LENGTH + 1];
740 if (count >= sizeof(nodemap_name))
743 if (copy_from_user(nodemap_name, buffer, count))
746 nodemap_name[count] = '\0';
748 cpybuf = nodemap_name;
749 pos = strsep(&cpybuf, " \n");
753 rc = nodemap_add(nodemap_name);
759 LPROC_SEQ_FOPS_WR_ONLY(nodemap, add_nodemap);
764 * \param[in] file proc file
765 * \param[in] buffer string, name of the nodemap to delete
766 * \param[in] count \a buffer length
767 * \param[in] off unused
768 * \retval \a count on success
769 * \retval negative number on error
772 lprocfs_del_nodemap_seq_write(struct file *file, const char __user *buffer,
773 size_t count, loff_t *off)
775 char nodemap_name[LUSTRE_NODEMAP_NAME_LENGTH + 1];
783 if (count >= sizeof(nodemap_name))
786 if (copy_from_user(nodemap_name, buffer, count))
789 nodemap_name[count] = '\0';
791 cpybuf = nodemap_name;
792 pos = strsep(&cpybuf, " \n");
796 rc = nodemap_del(nodemap_name);
803 LPROC_SEQ_FOPS_WR_ONLY(nodemap, del_nodemap);
806 * Helper function to parse a NID string.
808 * \param[in] rangestr string representation of NIDs, see libcfs_str2nid()
809 * \param[out] nids array of two nids
810 * \retval 0 on success
811 * \retval negative number on error
813 static int parse_nids(char *rangestr, lnet_nid_t nids[2])
815 struct list_head nidlist;
816 char nidstr[2][LNET_NIDSTR_SIZE];
817 char nidrange_str[2 * LNET_NIDSTR_SIZE + 2];
820 INIT_LIST_HEAD(&nidlist);
822 if (cfs_parse_nidlist(rangestr, strlen(rangestr),
826 if (!cfs_nidrange_is_contiguous(&nidlist))
829 cfs_nidrange_find_min_max(&nidlist, nidstr[0], nidstr[1],
831 snprintf(nidrange_str, sizeof(nidrange_str), "%s:%s",
832 nidstr[0], nidstr[1]);
834 rc = nodemap_parse_range(nidrange_str, nids);
838 cfs_free_nidlist(&nidlist);
844 * Add a NID range to nodemap.
846 * \param[in] file proc file
847 * \param[in] buffer string, "<nodemap name> <nid range>"
848 * \param[in] count \a buffer length
849 * \param[in] off unused
850 * \retval \a count on success
851 * \retval negative number on error
854 lprocfs_add_nodemap_range_seq_write(struct file *file,
855 const char __user *buffer,
856 size_t count, loff_t *off)
858 char name_range[LUSTRE_NODEMAP_NAME_LENGTH +
859 LNET_NIDSTR_SIZE * 2 + 2];
862 char *rangestr = NULL;
869 if (count >= sizeof(name_range))
870 GOTO(out, rc = -EINVAL);
872 if (copy_from_user(name_range, buffer, count))
873 GOTO(out, rc = -EFAULT);
875 name_range[count] = '\0';
878 name = strsep(&cpybuf, " ");
880 GOTO(out, rc = -EINVAL);
882 rangestr = strsep(&cpybuf, " \n");
883 if (rangestr == NULL)
884 GOTO(out, rc = -EINVAL);
886 rc = parse_nids(rangestr, nids);
890 rc = nodemap_add_range(name, nids);
892 GOTO(out, rc = -EINVAL);
900 LPROC_SEQ_FOPS_WR_ONLY(nodemap, add_nodemap_range);
903 * Delete a NID range from nodemap.
905 * \param[in] file proc file
906 * \param[in] buffer string, "<nodemap name> <nid range>"
907 * \param[in] count \a buffer length
908 * \param[in] off unused
909 * \retval \a count on success
910 * \retval negative number on error
913 lprocfs_del_nodemap_range_seq_write(struct file *file,
914 const char __user *buffer,
915 size_t count, loff_t *off)
917 char name_range[LUSTRE_NODEMAP_NAME_LENGTH +
918 LNET_NIDSTR_SIZE * 2 + 2];
921 char *rangestr = NULL;
928 if (count >= sizeof(name_range))
929 GOTO(out, rc = -EINVAL);
931 if (copy_from_user(name_range, buffer, count))
932 GOTO(out, rc = -EFAULT);
934 name_range[count] = '\0';
937 name = strsep(&cpybuf, " ");
939 GOTO(out, rc = -EINVAL);
941 rangestr = strsep(&cpybuf, " \n");
942 if (rangestr == NULL)
943 GOTO(out, rc = -EINVAL);
945 rc = parse_nids(rangestr, nids);
949 rc = nodemap_del_range(name, nids);
951 GOTO(out, rc = -EINVAL);
959 LPROC_SEQ_FOPS_WR_ONLY(nodemap, del_nodemap_range);
962 * Add an idmap to nodemap.
964 * \param[in] file proc file
965 * \param[in] buffer string, "<nodemap name> <uid|gid> <idmap>"
966 * \param[in] count \a buffer length
967 * \param[in] off unused
968 * \retval \a count on success
969 * \retval negative number on error
972 lprocfs_add_nodemap_idmap_seq_write(struct file *file,
973 const char __user *buffer,
974 size_t count, loff_t *off)
976 char name_idmapstr[LUSTRE_NODEMAP_NAME_LENGTH + 16];
979 char *idtypestr = NULL;
980 char *idmapstr = NULL;
987 if (count >= sizeof(name_idmapstr))
988 GOTO(out, rc = -EINVAL);
990 if (copy_from_user(name_idmapstr, buffer, count))
991 GOTO(out, rc = -EFAULT);
993 name_idmapstr[count] = '\0';
995 cpybuf = name_idmapstr;
996 name = strsep(&cpybuf, " ");
998 GOTO(out, rc = -EINVAL);
1000 idtypestr = strsep(&cpybuf, " ");
1001 if (idtypestr == NULL)
1002 GOTO(out, rc = -EINVAL);
1004 idmapstr = strsep(&cpybuf, " \n");
1005 if (idmapstr == NULL)
1006 GOTO(out, rc = -EINVAL);
1008 rc = nodemap_parse_idmap(idmapstr, idmap);
1010 GOTO(out, rc = -EINVAL);
1012 if (strcmp(idtypestr, "uid") == 0)
1013 rc = nodemap_add_idmap(name, NODEMAP_UID, idmap);
1014 else if (strcmp(idtypestr, "gid") == 0)
1015 rc = nodemap_add_idmap(name, NODEMAP_GID, idmap);
1017 GOTO(out, rc = -EINVAL);
1020 GOTO(out, rc = -EINVAL);
1028 LPROC_SEQ_FOPS_WR_ONLY(nodemap, add_nodemap_idmap);
1031 * Delete an idmap from nodemap.
1033 * \param[in] file proc file
1034 * \param[in] buffer string, "<nodemap name> <uid|gid> <idmap>"
1035 * \param[in] count \a buffer length
1036 * \param[in] off unused
1037 * \retval \a count on success
1038 * \retval negative number on error
1041 lprocfs_del_nodemap_idmap_seq_write(struct file *file,
1042 const char __user *buffer,
1043 size_t count, loff_t *off)
1045 char name_idmapstr[LUSTRE_NODEMAP_NAME_LENGTH + 16];
1046 char *cpybuf = NULL;
1048 char *idtypestr = NULL;
1049 char *idmapstr = NULL;
1056 if (count >= sizeof(name_idmapstr))
1057 GOTO(out, rc = -EINVAL);
1059 if (copy_from_user(name_idmapstr, buffer, count))
1060 GOTO(out, rc = -EFAULT);
1062 name_idmapstr[count] = '\0';
1064 cpybuf = name_idmapstr;
1065 name = strsep(&cpybuf, " ");
1067 GOTO(out, rc = -EINVAL);
1069 idtypestr = strsep(&cpybuf, " ");
1070 if (idtypestr == NULL)
1071 GOTO(out, rc = -EINVAL);
1073 idmapstr = strsep(&cpybuf, " \n");
1074 if (idmapstr == NULL)
1075 GOTO(out, rc = -EINVAL);
1077 rc = nodemap_parse_idmap(idmapstr, idmap);
1079 GOTO(out, rc = -EINVAL);
1081 if (strcmp(idtypestr, "uid") == 0)
1082 rc = nodemap_del_idmap(name, NODEMAP_UID, idmap);
1083 else if (strcmp(idtypestr, "gid") == 0)
1084 rc = nodemap_del_idmap(name, NODEMAP_GID, idmap);
1086 GOTO(out, rc = -EINVAL);
1089 GOTO(out, rc = -EINVAL);
1097 LPROC_SEQ_FOPS_WR_ONLY(nodemap, del_nodemap_idmap);
1098 #endif /* NODEMAP_PROC_DEBUG */
1100 static struct lprocfs_vars lprocfs_nm_module_vars[] = {
1103 .fops = &nodemap_active_fops,
1105 #ifdef NODEMAP_PROC_DEBUG
1107 .name = "add_nodemap",
1108 .fops = &nodemap_add_nodemap_fops,
1111 .name = "remove_nodemap",
1112 .fops = &nodemap_del_nodemap_fops,
1115 .name = "add_nodemap_range",
1116 .fops = &nodemap_add_nodemap_range_fops,
1119 .name = "del_nodemap_range",
1120 .fops = &nodemap_del_nodemap_range_fops,
1123 .name = "add_nodemap_idmap",
1124 .fops = &nodemap_add_nodemap_idmap_fops,
1127 .name = "del_nodemap_idmap",
1128 .fops = &nodemap_del_nodemap_idmap_fops,
1130 #endif /* NODEMAP_PROC_DEBUG */
1136 #ifdef NODEMAP_PROC_DEBUG
1137 LPROC_SEQ_FOPS(nodemap_trusted);
1138 LPROC_SEQ_FOPS(nodemap_admin);
1139 LPROC_SEQ_FOPS(nodemap_squash_uid);
1140 LPROC_SEQ_FOPS(nodemap_squash_gid);
1142 LPROC_SEQ_FOPS_RO(nodemap_trusted);
1143 LPROC_SEQ_FOPS_RO(nodemap_admin);
1144 LPROC_SEQ_FOPS_RO(nodemap_squash_uid);
1145 LPROC_SEQ_FOPS_RO(nodemap_squash_gid);
1148 LPROC_SEQ_FOPS_RO(nodemap_deny_unknown);
1149 LPROC_SEQ_FOPS_RO(nodemap_map_mode);
1151 const struct file_operations nodemap_ranges_fops = {
1152 .open = nodemap_ranges_open,
1154 .llseek = seq_lseek,
1155 .release = single_release
1158 const struct file_operations nodemap_idmap_fops = {
1159 .open = nodemap_idmap_open,
1161 .llseek = seq_lseek,
1162 .release = single_release
1165 const struct file_operations nodemap_exports_fops = {
1166 .open = nodemap_exports_open,
1168 .llseek = seq_lseek,
1169 .release = single_release
1172 static struct lprocfs_vars lprocfs_nodemap_vars[] = {
1175 .fops = &nodemap_id_fops,
1178 .name = "trusted_nodemap",
1179 .fops = &nodemap_trusted_fops,
1182 .name = "admin_nodemap",
1183 .fops = &nodemap_admin_fops,
1186 .name = "deny_unknown",
1187 .fops = &nodemap_deny_unknown_fops,
1191 .fops = &nodemap_map_mode_fops,
1194 .name = "squash_uid",
1195 .fops = &nodemap_squash_uid_fops,
1198 .name = "squash_gid",
1199 .fops = &nodemap_squash_gid_fops,
1203 .fops = &nodemap_ranges_fops,
1207 .fops = &nodemap_fileset_fops,
1211 .fops = &nodemap_exports_fops,
1215 .fops = &nodemap_idmap_fops,
1222 static struct lprocfs_vars lprocfs_default_nodemap_vars[] = {
1225 .fops = &nodemap_id_fops,
1228 .name = "trusted_nodemap",
1229 .fops = &nodemap_trusted_fops,
1232 .name = "admin_nodemap",
1233 .fops = &nodemap_admin_fops,
1236 .name = "squash_uid",
1237 .fops = &nodemap_squash_uid_fops,
1240 .name = "squash_gid",
1241 .fops = &nodemap_squash_gid_fops,
1245 .fops = &nodemap_fileset_fops,
1249 .fops = &nodemap_exports_fops,
1257 * Initialize the nodemap procfs directory.
1261 int nodemap_procfs_init(void)
1265 proc_lustre_nodemap_root = lprocfs_register(LUSTRE_NODEMAP_NAME,
1267 lprocfs_nm_module_vars,
1269 if (IS_ERR(proc_lustre_nodemap_root)) {
1270 rc = PTR_ERR(proc_lustre_nodemap_root);
1271 CERROR("cannot create 'nodemap' directory: rc = %d\n",
1273 proc_lustre_nodemap_root = NULL;
1279 * Cleanup nodemap proc entry data structures.
1281 void nodemap_procfs_exit(void)
1283 struct nodemap_pde *nm_pde;
1284 struct nodemap_pde *tmp;
1286 lprocfs_remove(&proc_lustre_nodemap_root);
1287 list_for_each_entry_safe(nm_pde, tmp, &nodemap_pde_list,
1289 list_del(&nm_pde->npe_list_member);
1290 OBD_FREE_PTR(nm_pde);
1295 * Remove a nodemap's procfs entry and related data.
1297 void lprocfs_nodemap_remove(struct nodemap_pde *nm_pde)
1299 lprocfs_remove(&nm_pde->npe_proc_entry);
1300 list_del(&nm_pde->npe_list_member);
1301 OBD_FREE_PTR(nm_pde);
1305 * Register the proc directory for a nodemap
1307 * \param nodemap nodemap to make the proc dir for
1308 * \param is_default: 1 if default nodemap
1311 int lprocfs_nodemap_register(struct lu_nodemap *nodemap, bool is_default)
1313 struct nodemap_pde *nm_entry;
1316 OBD_ALLOC_PTR(nm_entry);
1317 if (nm_entry == NULL)
1318 GOTO(out, rc = -ENOMEM);
1320 nm_entry->npe_proc_entry = proc_mkdir(nodemap->nm_name,
1321 proc_lustre_nodemap_root);
1322 if (IS_ERR(nm_entry->npe_proc_entry))
1323 GOTO(out, rc = PTR_ERR(nm_entry->npe_proc_entry));
1325 snprintf(nm_entry->npe_name, sizeof(nm_entry->npe_name), "%s",
1328 /* Use the nodemap name as stored on the PDE as the private data. This
1329 * is so a nodemap struct can be replaced without updating the proc
1332 rc = lprocfs_add_vars(nm_entry->npe_proc_entry,
1333 (is_default ? lprocfs_default_nodemap_vars :
1334 lprocfs_nodemap_vars),
1335 nm_entry->npe_name);
1337 lprocfs_remove(&nm_entry->npe_proc_entry);
1339 list_add(&nm_entry->npe_list_member, &nodemap_pde_list);
1343 CERROR("cannot create 'nodemap/%s': rc = %d\n",
1344 nodemap->nm_name, rc);
1345 if (nm_entry != NULL) {
1346 OBD_FREE_PTR(nm_entry);
1351 nodemap->nm_pde_data = nm_entry;