/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * lustre/obdclass/idmap.c
- * Lustre user identity mapping.
- * Author: Fan Yong <fanyong@clusterfs.com>
+ * GPL HEADER START
*
- * Copyright (C) 2004-2007 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/obdclass/idmap.c
+ *
+ * Lustre user identity mapping.
+ *
+ * Author: Fan Yong <fanyong@clusterfs.com>
*/
#ifndef EXPORT_SYMTAB
#include <obd_support.h>
#define lustre_get_group_info(group_info) do { \
- atomic_inc(&(group_info)->usage); \
+ cfs_atomic_inc(&(group_info)->usage); \
} while (0)
#define lustre_put_group_info(group_info) do { \
- if (atomic_dec_and_test(&(group_info)->usage)) \
- groups_free(group_info); \
+ if (cfs_atomic_dec_and_test(&(group_info)->usage)) \
+ cfs_groups_free(group_info); \
} while (0)
/*
* groups_search() is copied from linux kernel!
* A simple bsearch.
*/
-static int lustre_groups_search(struct group_info *group_info, gid_t grp)
+static int lustre_groups_search(cfs_group_info_t *group_info,
+ gid_t grp)
{
int left, right;
return 0;
}
-void lustre_groups_from_list(struct group_info *ginfo, gid_t *glist)
+void lustre_groups_from_list(cfs_group_info_t *ginfo, gid_t *glist)
{
int i;
int count = ginfo->ngroups;
/* groups_sort() is copied from linux kernel! */
/* a simple shell-metzner sort */
-void lustre_groups_sort(struct group_info *group_info)
+void lustre_groups_sort(cfs_group_info_t *group_info)
{
int base, max, stride;
int gidsetsize = group_info->ngroups;
int rc = 1;
if (grp != mu->mu_fsgid) {
- struct group_info *group_info = NULL;
+ cfs_group_info_t *group_info = NULL;
if (mu->mu_ginfo || !mu->mu_identity ||
mu->mu_valid == UCRED_OLD)
EXPORT_SYMBOL(lustre_in_group_p);
struct lustre_idmap_entry {
- struct list_head lie_rmt_uid_hash; /* hashed as lie_rmt_uid; */
- struct list_head lie_lcl_uid_hash; /* hashed as lie_lcl_uid; */
- struct list_head lie_rmt_gid_hash; /* hashed as lie_rmt_gid; */
- struct list_head lie_lcl_gid_hash; /* hashed as lie_lcl_gid; */
+ cfs_list_t lie_rmt_uid_hash; /* hashed as lie_rmt_uid; */
+ cfs_list_t lie_lcl_uid_hash; /* hashed as lie_lcl_uid; */
+ cfs_list_t lie_rmt_gid_hash; /* hashed as lie_rmt_gid; */
+ cfs_list_t lie_lcl_gid_hash; /* hashed as lie_lcl_gid; */
uid_t lie_rmt_uid; /* remote uid */
uid_t lie_lcl_uid; /* local uid */
gid_t lie_rmt_gid; /* remote gid */
static void idmap_entry_free(struct lustre_idmap_entry *e)
{
- if (!list_empty(&e->lie_rmt_uid_hash))
- list_del(&e->lie_rmt_uid_hash);
- if (!list_empty(&e->lie_lcl_uid_hash))
- list_del(&e->lie_lcl_uid_hash);
- if (!list_empty(&e->lie_rmt_gid_hash))
- list_del(&e->lie_rmt_gid_hash);
- if (!list_empty(&e->lie_lcl_gid_hash))
- list_del(&e->lie_lcl_gid_hash);
+ if (!cfs_list_empty(&e->lie_rmt_uid_hash))
+ cfs_list_del(&e->lie_rmt_uid_hash);
+ if (!cfs_list_empty(&e->lie_lcl_uid_hash))
+ cfs_list_del(&e->lie_lcl_uid_hash);
+ if (!cfs_list_empty(&e->lie_rmt_gid_hash))
+ cfs_list_del(&e->lie_rmt_gid_hash);
+ if (!cfs_list_empty(&e->lie_lcl_gid_hash))
+ cfs_list_del(&e->lie_lcl_gid_hash);
OBD_FREE_PTR(e);
}
uid_t rmt_uid, uid_t lcl_uid,
gid_t rmt_gid, gid_t lcl_gid)
{
- struct list_head *head;
+ cfs_list_t *head;
struct lustre_idmap_entry *e;
head = &t->lit_idmaps[RMT_UIDMAP_IDX][lustre_idmap_hashfunc(rmt_uid)];
- list_for_each_entry(e, head, lie_rmt_uid_hash)
+ cfs_list_for_each_entry(e, head, lie_rmt_uid_hash)
if (e->lie_rmt_uid == rmt_uid) {
if (e->lie_lcl_uid == lcl_uid) {
if (e->lie_rmt_gid == rmt_gid &&
}
head = &t->lit_idmaps[RMT_GIDMAP_IDX][lustre_idmap_hashfunc(rmt_gid)];
- list_for_each_entry(e, head, lie_rmt_gid_hash)
+ cfs_list_for_each_entry(e, head, lie_rmt_gid_hash)
if (e->lie_rmt_gid == rmt_gid) {
if (e->lie_lcl_gid == lcl_gid) {
if (unlikely(e->lie_rmt_uid == rmt_uid &&
return NULL;
}
-static __u32 idmap_lookup_uid(struct list_head *hash, int reverse, __u32 uid)
+static __u32 idmap_lookup_uid(cfs_list_t *hash, int reverse,
+ __u32 uid)
{
- struct list_head *head = &hash[lustre_idmap_hashfunc(uid)];
+ cfs_list_t *head = &hash[lustre_idmap_hashfunc(uid)];
struct lustre_idmap_entry *e;
if (!reverse) {
- list_for_each_entry(e, head, lie_rmt_uid_hash)
+ cfs_list_for_each_entry(e, head, lie_rmt_uid_hash)
if (e->lie_rmt_uid == uid)
return e->lie_lcl_uid;
} else {
- list_for_each_entry(e, head, lie_lcl_uid_hash)
+ cfs_list_for_each_entry(e, head, lie_lcl_uid_hash)
if (e->lie_lcl_uid == uid)
return e->lie_rmt_uid;
}
return CFS_IDMAP_NOTFOUND;
}
-static __u32 idmap_lookup_gid(struct list_head *hash, int reverse, __u32 gid)
+static __u32 idmap_lookup_gid(cfs_list_t *hash, int reverse, __u32 gid)
{
- struct list_head *head = &hash[lustre_idmap_hashfunc(gid)];
+ cfs_list_t *head = &hash[lustre_idmap_hashfunc(gid)];
struct lustre_idmap_entry *e;
if (!reverse) {
- list_for_each_entry(e, head, lie_rmt_gid_hash)
+ cfs_list_for_each_entry(e, head, lie_rmt_gid_hash)
if (e->lie_rmt_gid == gid)
return e->lie_lcl_gid;
} else {
- list_for_each_entry(e, head, lie_lcl_gid_hash)
+ cfs_list_for_each_entry(e, head, lie_lcl_gid_hash)
if (e->lie_lcl_gid == gid)
return e->lie_rmt_gid;
}
LASSERT(t);
- spin_lock(&t->lit_lock);
+ cfs_spin_lock(&t->lit_lock);
e0 = idmap_search_entry(t, ruid, luid, rgid, lgid);
- spin_unlock(&t->lit_lock);
+ cfs_spin_unlock(&t->lit_lock);
if (!e0) {
e0 = idmap_entry_alloc(ruid, luid, rgid, lgid);
if (!e0)
return -ENOMEM;
- spin_lock(&t->lit_lock);
+ cfs_spin_lock(&t->lit_lock);
e1 = idmap_search_entry(t, ruid, luid, rgid, lgid);
if (e1 == NULL) {
- list_add_tail(&e0->lie_rmt_uid_hash,
- &t->lit_idmaps[RMT_UIDMAP_IDX]
- [lustre_idmap_hashfunc(ruid)]);
- list_add_tail(&e0->lie_lcl_uid_hash,
- &t->lit_idmaps[LCL_UIDMAP_IDX]
- [lustre_idmap_hashfunc(luid)]);
- list_add_tail(&e0->lie_rmt_gid_hash,
- &t->lit_idmaps[RMT_GIDMAP_IDX]
- [lustre_idmap_hashfunc(rgid)]);
- list_add_tail(&e0->lie_lcl_gid_hash,
- &t->lit_idmaps[LCL_GIDMAP_IDX]
- [lustre_idmap_hashfunc(lgid)]);
- }
- spin_unlock(&t->lit_lock);
+ cfs_list_add_tail(&e0->lie_rmt_uid_hash,
+ &t->lit_idmaps[RMT_UIDMAP_IDX]
+ [lustre_idmap_hashfunc(ruid)]);
+ cfs_list_add_tail(&e0->lie_lcl_uid_hash,
+ &t->lit_idmaps[LCL_UIDMAP_IDX]
+ [lustre_idmap_hashfunc(luid)]);
+ cfs_list_add_tail(&e0->lie_rmt_gid_hash,
+ &t->lit_idmaps[RMT_GIDMAP_IDX]
+ [lustre_idmap_hashfunc(rgid)]);
+ cfs_list_add_tail(&e0->lie_lcl_gid_hash,
+ &t->lit_idmaps[LCL_GIDMAP_IDX]
+ [lustre_idmap_hashfunc(lgid)]);
+ }
+ cfs_spin_unlock(&t->lit_lock);
if (e1 != NULL) {
idmap_entry_free(e0);
if (IS_ERR(e1))
LASSERT(t);
- spin_lock(&t->lit_lock);
+ cfs_spin_lock(&t->lit_lock);
e = idmap_search_entry(t, ruid, luid, rgid, lgid);
if (IS_ERR(e))
rc = PTR_ERR(e);
else if (e)
idmap_entry_free(e);
- spin_unlock(&t->lit_lock);
+ cfs_spin_unlock(&t->lit_lock);
return rc;
}
struct lustre_idmap_table *t,
int reverse, uid_t uid)
{
- struct list_head *hash;
+ cfs_list_t *hash;
if (mu && (mu->mu_valid == UCRED_OLD || mu->mu_valid == UCRED_NEW)) {
if (!reverse) {
hash = t->lit_idmaps[reverse ? LCL_UIDMAP_IDX : RMT_UIDMAP_IDX];
- spin_lock(&t->lit_lock);
+ cfs_spin_lock(&t->lit_lock);
uid = idmap_lookup_uid(hash, reverse, uid);
- spin_unlock(&t->lit_lock);
+ cfs_spin_unlock(&t->lit_lock);
return uid;
}
int lustre_idmap_lookup_gid(struct md_ucred *mu, struct lustre_idmap_table *t,
int reverse, gid_t gid)
{
- struct list_head *hash;
+ cfs_list_t *hash;
if (mu && (mu->mu_valid == UCRED_OLD || mu->mu_valid == UCRED_NEW)) {
if (!reverse) {
hash = t->lit_idmaps[reverse ? LCL_GIDMAP_IDX : RMT_GIDMAP_IDX];
- spin_lock(&t->lit_lock);
+ cfs_spin_lock(&t->lit_lock);
gid = idmap_lookup_gid(hash, reverse, gid);
- spin_unlock(&t->lit_lock);
+ cfs_spin_unlock(&t->lit_lock);
return gid;
}
if(unlikely(t == NULL))
return (ERR_PTR(-ENOMEM));
- spin_lock_init(&t->lit_lock);
+ cfs_spin_lock_init(&t->lit_lock);
for (i = 0; i < ARRAY_SIZE(t->lit_idmaps); i++)
for (j = 0; j < ARRAY_SIZE(t->lit_idmaps[i]); j++)
- INIT_LIST_HEAD(&t->lit_idmaps[i][j]);
+ CFS_INIT_LIST_HEAD(&t->lit_idmaps[i][j]);
return t;
}
void lustre_idmap_fini(struct lustre_idmap_table *t)
{
- struct list_head *list;
+ cfs_list_t *list;
struct lustre_idmap_entry *e;
int i;
LASSERT(t);
list = t->lit_idmaps[RMT_UIDMAP_IDX];
- spin_lock(&t->lit_lock);
+ cfs_spin_lock(&t->lit_lock);
for (i = 0; i < CFS_IDMAP_HASHSIZE; i++)
- while (!list_empty(&list[i])) {
- e = list_entry(list[i].next, struct lustre_idmap_entry,
- lie_rmt_uid_hash);
+ while (!cfs_list_empty(&list[i])) {
+ e = cfs_list_entry(list[i].next,
+ struct lustre_idmap_entry,
+ lie_rmt_uid_hash);
idmap_entry_free(e);
}
- spin_unlock(&t->lit_lock);
+ cfs_spin_unlock(&t->lit_lock);
OBD_FREE_PTR(t);
}