/*
* Copyright (C) 2013, Trustees of Indiana University
*
- * Copyright (c) 2014, Intel Corporation.
+ * Copyright (c) 2017, Intel Corporation.
*
* Author: Joshua Walgenbach <jjw@iu.edu>
*/
#include <linux/module.h>
#include <linux/sort.h>
-#include <lnet/nidstr.h>
+#include <uapi/linux/lnet/nidstr.h>
#include <lustre_net.h>
#include <lustre_acl.h>
#include <lustre_eacl.h>
nm_member_reclassify_nodemap(nodemap);
up_read(&active_config->nmc_range_tree_lock);
- write_lock(&nodemap->nm_idmap_lock);
+ down_write(&nodemap->nm_idmap_lock);
idmap_delete_tree(nodemap);
- write_unlock(&nodemap->nm_idmap_lock);
+ up_write(&nodemap->nm_idmap_lock);
mutex_unlock(&active_config_lock);
/**
* add an idmap to the proper nodemap trees
*
- * \param name name of nodemap
+ * \param nodemap nodemap to add idmap to
* \param id_type NODEMAP_UID or NODEMAP_GID
* \param map array[2] __u32 containing the map values
* map[0] is client id
* map[1] is the filesystem id
*
- * \retval 0 on success
+ * \retval 0 on success
+ * \retval < 0 if error occurs
*/
int nodemap_add_idmap_helper(struct lu_nodemap *nodemap,
enum nodemap_id_type id_type,
const __u32 map[2])
{
struct lu_idmap *idmap;
+ struct lu_idmap *temp;
int rc = 0;
idmap = idmap_create(map[0], map[1]);
if (idmap == NULL)
GOTO(out, rc = -ENOMEM);
- write_lock(&nodemap->nm_idmap_lock);
- idmap_insert(id_type, idmap, nodemap);
- write_unlock(&nodemap->nm_idmap_lock);
+ down_write(&nodemap->nm_idmap_lock);
+ temp = idmap_insert(id_type, idmap, nodemap);
+ /* If the new id_client or id_fs is matched, the old idmap and its
+ * index should be deleted according to its id_client before the new
+ * idmap is added again.
+ */
+ if (IS_ERR(temp))
+ GOTO(out_insert, rc = PTR_ERR(temp));
+ if (temp) {
+ __u32 del_map[2];
+
+ del_map[0] = temp->id_client;
+ idmap_delete(id_type, temp, nodemap);
+ rc = nodemap_idx_idmap_del(nodemap, id_type, del_map);
+ /* In case there is any corrupted idmap */
+ if (!rc || unlikely(rc == -ENOENT)) {
+ temp = idmap_insert(id_type, idmap, nodemap);
+ if (IS_ERR(temp))
+ rc = PTR_ERR(temp);
+ else if (!temp)
+ rc = 0;
+ else
+ rc = -EPERM;
+ }
+ }
+out_insert:
+ if (rc)
+ OBD_FREE_PTR(idmap);
+ up_write(&nodemap->nm_idmap_lock);
nm_member_revoke_locks(nodemap);
out:
struct lu_nodemap *nodemap = NULL;
int rc;
+ ENTRY;
+
mutex_lock(&active_config_lock);
nodemap = nodemap_lookup(name);
if (IS_ERR(nodemap)) {
nodemap_putref(nodemap);
out:
- return rc;
+ RETURN(rc);
}
EXPORT_SYMBOL(nodemap_add_idmap);
struct lu_idmap *idmap = NULL;
int rc = 0;
+ ENTRY;
+
mutex_lock(&active_config_lock);
nodemap = nodemap_lookup(name);
if (IS_ERR(nodemap)) {
if (is_default_nodemap(nodemap))
GOTO(out_putref, rc = -EINVAL);
- write_lock(&nodemap->nm_idmap_lock);
+ down_write(&nodemap->nm_idmap_lock);
idmap = idmap_search(nodemap, NODEMAP_CLIENT_TO_FS, id_type,
map[0]);
if (idmap == NULL) {
idmap_delete(id_type, idmap, nodemap);
rc = nodemap_idx_idmap_del(nodemap, id_type, map);
}
- write_unlock(&nodemap->nm_idmap_lock);
+ up_write(&nodemap->nm_idmap_lock);
out_putref:
mutex_unlock(&active_config_lock);
nodemap_putref(nodemap);
out:
- return rc;
+ RETURN(rc);
}
EXPORT_SYMBOL(nodemap_del_idmap);
* is, return 0. Otherwise, return the squash uid or gid.
*
* if the nodemap is configured to trusted the ids from the client system, just
- * return the passwd id without mapping.
+ * return the passed id without mapping.
*
* if by this point, we haven't returned and the nodemap in question is the
* default nodemap, return the squash uid or gid.
if (is_default_nodemap(nodemap))
goto squash;
- read_lock(&nodemap->nm_idmap_lock);
+ down_read(&nodemap->nm_idmap_lock);
idmap = idmap_search(nodemap, tree_type, id_type, id);
if (idmap == NULL) {
- read_unlock(&nodemap->nm_idmap_lock);
+ up_read(&nodemap->nm_idmap_lock);
goto squash;
}
found_id = idmap->id_client;
else
found_id = idmap->id_fs;
- read_unlock(&nodemap->nm_idmap_lock);
+ up_read(&nodemap->nm_idmap_lock);
RETURN(found_id);
squash:
enum nodemap_tree_type tree_type)
{
posix_acl_xattr_header *header = buf;
- posix_acl_xattr_entry *entry = &header->a_entries[0];
+ posix_acl_xattr_entry *entry = GET_POSIX_ACL_XATTR_ENTRY(header);
posix_acl_xattr_entry *new_entry = entry;
posix_acl_xattr_entry *end;
int count;
+ ENTRY;
+
if (!nodemap_active)
- return size;
+ RETURN(size);
if (unlikely(nodemap == NULL))
- return size;
+ RETURN(size);
count = posix_acl_xattr_count(size);
if (count < 0)
- return -EINVAL;
+ RETURN(-EINVAL);
if (count == 0)
- return 0;
+ RETURN(0);
for (end = entry + count; entry != end; entry++) {
__u16 tag = le16_to_cpu(entry->e_tag);
new_entry++;
}
- return (void *)new_entry - (void *)header;
+ RETURN((void *)new_entry - (void *)header);
}
EXPORT_SYMBOL(nodemap_map_acl);
/**
* delete a range
* \param name nodemap name
- * \param range_str string containing range
+ * \param nid nid range
* \retval 0 on success
*
* Delete range from global range tree, and remove it
up_write(&active_config->nmc_range_tree_lock);
GOTO(out_putref, rc = -EINVAL);
}
+ if (range->rn_nodemap != nodemap) {
+ up_write(&active_config->nmc_range_tree_lock);
+ GOTO(out_putref, rc = -EINVAL);
+ }
rc = nodemap_idx_range_del(range);
range_delete(&active_config->nmc_range_tree, range);
nm_member_reclassify_nodemap(nodemap);
{
int rc = 0;
- /* we allow fileset = "" which means clear fileset info */
- if (fileset == NULL || (fileset[0] != 0 && fileset[0] != '/'))
+ /* Allow 'fileset=clear' in addition to 'fileset=""' to clear fileset
+ * because either command 'lctl set_param -P *.*.fileset=""' or
+ * 'lctl nodemap_set_fileset --fileset ""' can only work correctly
+ * on MGS, while on other servers, both commands will invoke upcall
+ * "/usr/sbin/lctl set_param nodemap.default.fileset=" by function
+ * process_param2_config(), which will cause "no value" error and
+ * won't clear fileset.
+ * 'fileset=""' is still kept for compatibility reason.
+ */
+ if (fileset == NULL)
+ rc = -EINVAL;
+ else if (fileset[0] == '\0' || strcmp(fileset, "clear") == 0)
+ nodemap->nm_fileset[0] = '\0';
+ else if (fileset[0] != '/')
rc = -EINVAL;
else if (strlcpy(nodemap->nm_fileset, fileset,
sizeof(nodemap->nm_fileset)) >=
GOTO(out, rc = PTR_ERR(nodemap));
}
- if (is_default_nodemap(nodemap))
- rc = -EINVAL;
- else
- rc = nodemap_set_fileset_helper(active_config, nodemap,
- fileset);
+ rc = nodemap_set_fileset_helper(active_config, nodemap, fileset);
mutex_unlock(&active_config_lock);
nodemap_putref(nodemap);
*/
char *nodemap_get_fileset(const struct lu_nodemap *nodemap)
{
- if (!nodemap_active || is_default_nodemap(nodemap))
+ if (!nodemap_active)
return NULL;
- else
- return (char *)nodemap->nm_fileset;
+
+ return (char *)nodemap->nm_fileset;
}
EXPORT_SYMBOL(nodemap_get_fileset);
*
* Creates an lu_nodemap structure and assigns sane default
* member values. If this is the default nodemap, the defaults
- * are the most restictive in xterms of mapping behavior. Otherwise
+ * are the most restrictive in terms of mapping behavior. Otherwise
* the default flags should be inherited from the default nodemap.
* The adds nodemap to nodemap_hash.
*
struct lu_nodemap *default_nodemap;
struct cfs_hash *hash = config->nmc_nodemap_hash;
int rc = 0;
+ ENTRY;
default_nodemap = config->nmc_default_nodemap;
INIT_LIST_HEAD(&nodemap->nm_member_list);
mutex_init(&nodemap->nm_member_list_lock);
- rwlock_init(&nodemap->nm_idmap_lock);
+ init_rwsem(&nodemap->nm_idmap_lock);
nodemap->nm_fs_to_client_uidmap = RB_ROOT;
nodemap->nm_client_to_fs_uidmap = RB_ROOT;
nodemap->nm_fs_to_client_gidmap = RB_ROOT;
nodemap->nmf_deny_unknown = 0;
nodemap->nmf_map_uid_only = 0;
nodemap->nmf_map_gid_only = 0;
+ nodemap->nmf_enable_audit = 1;
nodemap->nm_squash_uid = NODEMAP_NOBODY_UID;
nodemap->nm_squash_gid = NODEMAP_NOBODY_GID;
+ nodemap->nm_fileset[0] = '\0';
if (!is_default)
CWARN("adding nodemap '%s' to config without"
" default nodemap\n", nodemap->nm_name);
default_nodemap->nmf_map_uid_only;
nodemap->nmf_map_gid_only =
default_nodemap->nmf_map_gid_only;
+ nodemap->nmf_enable_audit =
+ default_nodemap->nmf_enable_audit;
nodemap->nm_squash_uid = default_nodemap->nm_squash_uid;
nodemap->nm_squash_gid = default_nodemap->nm_squash_gid;
- nodemap->nm_fileset[0] = 0;
+ nodemap->nm_fileset[0] = '\0';
}
- return nodemap;
+ RETURN(nodemap);
out:
CERROR("cannot add nodemap: '%s': rc = %d\n", name, rc);
- return ERR_PTR(rc);
+ RETURN(ERR_PTR(rc));
}
/**
EXPORT_SYMBOL(nodemap_can_setquota);
/**
+ * Set the nmf_enable_audit flag to true or false.
+ * \param name nodemap name
+ * \param audit_mode if true, allow audit
+ * \retval 0 on success
+ *
+ */
+int nodemap_set_audit_mode(const char *name, bool enable_audit)
+{
+ struct lu_nodemap *nodemap = NULL;
+ int rc = 0;
+
+ mutex_lock(&active_config_lock);
+ nodemap = nodemap_lookup(name);
+ mutex_unlock(&active_config_lock);
+ if (IS_ERR(nodemap))
+ GOTO(out, rc = PTR_ERR(nodemap));
+
+ nodemap->nmf_enable_audit = enable_audit;
+ rc = nodemap_idx_nodemap_update(nodemap);
+
+ nm_member_revoke_locks(nodemap);
+ nodemap_putref(nodemap);
+out:
+ return rc;
+}
+EXPORT_SYMBOL(nodemap_set_audit_mode);
+
+
+/**
* Add a nodemap
*
* \param name name of nodemap
git://git.whamcloud.com / fs / lustre-release.git / blobdiff