/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2004-2006 Cluster File Systems, Inc.
- * Author: Lai Siyao <lsy@clusterfs.com>
- * Author: Fan Yong <fanyong@clusterfs.com>
+ * GPL HEADER START
*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * 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.
*
- * 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.
+ * 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 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.
+ * 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
*
- * 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.
+ * 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.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 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/mdt/mdt_idmap.c
+ *
+ * Author: Lai Siyao <lsy@clusterfs.com>
+ * Author: Fan Yong <fanyong@clusterfs.com>
*/
#ifndef EXPORT_SYMTAB
#endif
#define DEBUG_SUBSYSTEM S_MDS
+#ifndef AUTOCONF_INCLUDED
#include <linux/config.h>
+#endif
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <asm/uaccess.h>
#include <linux/slab.h>
-#include <libcfs/kp30.h>
+#include <libcfs/libcfs.h>
#include <obd.h>
#include <obd_class.h>
#include <obd_support.h>
#include "mdt_internal.h"
-int mdt_init_idmap(struct mdt_thread_info *info)
+#define mdt_init_sec_none(reply, exp) \
+do { \
+ reply->ocd_connect_flags &= ~(OBD_CONNECT_RMT_CLIENT | \
+ OBD_CONNECT_RMT_CLIENT_FORCE | \
+ OBD_CONNECT_MDS_CAPA | \
+ OBD_CONNECT_OSS_CAPA); \
+ cfs_spin_lock(&exp->exp_lock); \
+ exp->exp_connect_flags = reply->ocd_connect_flags; \
+ cfs_spin_unlock(&exp->exp_lock); \
+} while (0)
+
+int mdt_init_sec_level(struct mdt_thread_info *info)
{
+ struct mdt_device *mdt = info->mti_mdt;
struct ptlrpc_request *req = mdt_info_req(info);
char *client = libcfs_nid2str(req->rq_peer.nid);
- struct mdt_export_data *med = mdt_req2med(req);
- struct obd_device *obd = req->rq_export->exp_obd;
+ struct obd_export *exp = req->rq_export;
+ struct obd_device *obd = exp->exp_obd;
struct obd_connect_data *data, *reply;
int rc = 0, remote;
ENTRY;
if (data == NULL || reply == NULL)
RETURN(-EFAULT);
- if (!req->rq_auth_gss || req->rq_auth_usr_mdt) {
- med->med_rmtclient = 0;
- reply->ocd_connect_flags &= ~OBD_CONNECT_RMT_CLIENT;
+ /* connection from MDT is always trusted */
+ if (req->rq_auth_usr_mdt) {
+ mdt_init_sec_none(reply, exp);
RETURN(0);
}
- remote = data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT;
+ /* no GSS support case */
+ if (!req->rq_auth_gss) {
+ if (mdt->mdt_sec_level > LUSTRE_SEC_NONE) {
+ CWARN("client %s -> target %s does not user GSS, "
+ "can not run under security level %d.\n",
+ client, obd->obd_name, mdt->mdt_sec_level);
+ RETURN(-EACCES);
+ } else {
+ mdt_init_sec_none(reply, exp);
+ RETURN(0);
+ }
+ }
+
+ /* old version case */
+ if (unlikely(!(data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) ||
+ !(data->ocd_connect_flags & OBD_CONNECT_MDS_CAPA) ||
+ !(data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA))) {
+ if (mdt->mdt_sec_level > LUSTRE_SEC_NONE) {
+ CWARN("client %s -> target %s uses old version, "
+ "can not run under security level %d.\n",
+ client, obd->obd_name, mdt->mdt_sec_level);
+ RETURN(-EACCES);
+ } else {
+ CWARN("client %s -> target %s uses old version, "
+ "run under security level %d.\n",
+ client, obd->obd_name, mdt->mdt_sec_level);
+ mdt_init_sec_none(reply, exp);
+ RETURN(0);
+ }
+ }
+ remote = data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT_FORCE;
if (remote) {
- med->med_rmtclient = 1;
if (!req->rq_auth_remote)
CDEBUG(D_SEC, "client (local realm) %s -> target %s "
- "asked to be remote!\n", client, obd->obd_name);
+ "asked to be remote.\n", client, obd->obd_name);
} else if (req->rq_auth_remote) {
- med->med_rmtclient = 1;
- CDEBUG(D_SEC, "client (remote realm) %s -> target %s forced "
- "to be remote!\n", client, obd->obd_name);
+ remote = 1;
+ CDEBUG(D_SEC, "client (remote realm) %s -> target %s is set "
+ "as remote by default.\n", client, obd->obd_name);
}
- if (med->med_rmtclient) {
- down(&med->med_idmap_sem);
+ if (remote) {
+ if (!mdt->mdt_opts.mo_oss_capa) {
+ CDEBUG(D_SEC, "client %s -> target %s is set as remote,"
+ " but OSS capabilities are not enabled: %d.\n",
+ client, obd->obd_name, mdt->mdt_opts.mo_oss_capa);
+ RETURN(-EACCES);
+ }
+ } else {
+ if (req->rq_auth_uid == INVALID_UID) {
+ CDEBUG(D_SEC, "client %s -> target %s: user is not "
+ "authenticated!\n", client, obd->obd_name);
+ RETURN(-EACCES);
+ }
+ }
+
+ switch (mdt->mdt_sec_level) {
+ case LUSTRE_SEC_NONE:
+ if (!remote) {
+ mdt_init_sec_none(reply, exp);
+ break;
+ } else {
+ CDEBUG(D_SEC, "client %s -> target %s is set as remote, "
+ "can not run under security level %d.\n",
+ client, obd->obd_name, mdt->mdt_sec_level);
+ RETURN(-EACCES);
+ }
+ case LUSTRE_SEC_REMOTE:
+ if (!remote)
+ mdt_init_sec_none(reply, exp);
+ break;
+ case LUSTRE_SEC_ALL:
+ if (!remote) {
+ reply->ocd_connect_flags &= ~(OBD_CONNECT_RMT_CLIENT |
+ OBD_CONNECT_RMT_CLIENT_FORCE);
+ if (!mdt->mdt_opts.mo_mds_capa)
+ reply->ocd_connect_flags &= ~OBD_CONNECT_MDS_CAPA;
+ if (!mdt->mdt_opts.mo_oss_capa)
+ reply->ocd_connect_flags &= ~OBD_CONNECT_OSS_CAPA;
+
+ cfs_spin_lock(&exp->exp_lock);
+ exp->exp_connect_flags = reply->ocd_connect_flags;
+ cfs_spin_unlock(&exp->exp_lock);
+ }
+ break;
+ default:
+ RETURN(-EINVAL);
+ }
+
+ RETURN(rc);
+}
+
+int mdt_init_idmap(struct mdt_thread_info *info)
+{
+ struct ptlrpc_request *req = mdt_info_req(info);
+ struct mdt_export_data *med = mdt_req2med(req);
+ struct obd_export *exp = req->rq_export;
+ char *client = libcfs_nid2str(req->rq_peer.nid);
+ struct obd_device *obd = exp->exp_obd;
+ int rc = 0;
+ ENTRY;
+
+ if (exp_connect_rmtclient(exp)) {
+ cfs_down(&med->med_idmap_sem);
if (!med->med_idmap)
med->med_idmap = lustre_idmap_init();
- up(&med->med_idmap_sem);
+ cfs_up(&med->med_idmap_sem);
if (IS_ERR(med->med_idmap)) {
long err = PTR_ERR(med->med_idmap);
RETURN(-ENOMEM);
}
- reply->ocd_connect_flags &= ~OBD_CONNECT_LCL_CLIENT;
CDEBUG(D_SEC, "client %s -> target %s is remote.\n",
client, obd->obd_name);
-
/* NB, MDS_CONNECT establish root idmap too! */
rc = mdt_handle_idmap(info);
- } else {
- if (req->rq_auth_uid == INVALID_UID) {
- CDEBUG(D_SEC, "client %s -> target %s: user is not "
- "authenticated!\n", client, obd->obd_name);
- RETURN(-EACCES);
- }
- reply->ocd_connect_flags &= ~OBD_CONNECT_RMT_CLIENT;
}
-
RETURN(rc);
}
void mdt_cleanup_idmap(struct mdt_export_data *med)
{
- LASSERT(med->med_rmtclient);
-
- down(&med->med_idmap_sem);
+ cfs_down(&med->med_idmap_sem);
if (med->med_idmap != NULL) {
lustre_idmap_fini(med->med_idmap);
med->med_idmap = NULL;
}
- up(&med->med_idmap_sem);
+ cfs_up(&med->med_idmap_sem);
}
static inline void mdt_revoke_export_locks(struct obd_export *exp)
RETURN(0);
med = mdt_req2med(req);
- if (!med->med_rmtclient)
+ if (!exp_connect_rmtclient(info->mti_exp))
RETURN(0);
opc = lustre_msg_get_opc(req->rq_reqmsg);
gid_t gid, fsgid;
/* Only remote client need desc_to_idmap. */
- if (!med->med_rmtclient)
+ if (!exp_connect_rmtclient(req->rq_export))
return 0;
uid = lustre_idmap_lookup_uid(NULL, idmap, 0, pud->pud_uid);
struct mdt_export_data *med = mdt_req2med(req);
struct lustre_idmap_table *idmap = med->med_idmap;
- if (!med->med_rmtclient)
+ if (!exp_connect_rmtclient(info->mti_exp))
return;
if (body->valid & OBD_MD_FLUID) {
* done in cmm/mdd layer, here set all cases as uc->mu_fsgid. */
if ((attr->la_valid & LA_GID) && (attr->la_gid != -1))
attr->la_gid = uc->mu_fsgid;
- } else if (med->med_rmtclient) {
+ } else if (exp_connect_rmtclient(info->mti_exp)) {
/* NB: -1 case will be handled by mdt_fix_attr() later. */
if ((attr->la_valid & LA_UID) && (attr->la_uid != -1)) {
uid_t uid = lustre_idmap_lookup_uid(uc, idmap, 0,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff