-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2004-2006 Cluster File Systems, Inc.
- * Author: Lai Siyao <lsy@clusterfs.com>
- * Author: Fan Yong <fanyong@clusterfs.com>
+ * 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) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
+ */
+/*
+ * 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
-#define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/version.h>
#include <linux/unistd.h>
-#include <asm/system.h>
#include <asm/uaccess.h>
#include <linux/fs.h>
#include <linux/stat.h>
#include <asm/uaccess.h>
#include <linux/slab.h>
-#ifdef HAVE_SEGMENT_H
-#include <asm/segment.h>
-#endif
-#include <libcfs/kp30.h>
+#include <libcfs/libcfs.h>
+#include <libcfs/lucache.h>
#include <obd.h>
#include <obd_class.h>
#include <obd_support.h>
#include <lustre_dlm.h>
#include <lustre_sec.h>
#include <lustre_lib.h>
-#include <lustre_ucache.h>
#include "mdt_internal.h"
-int mdt_init_idmap(struct mdt_thread_info *info)
+int mdt_init_idmap(struct tgt_session_info *tsi)
{
- 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_connect_data *data, *reply;
- int rc = 0, remote;
- ENTRY;
-
- data = req_capsule_client_get(info->mti_pill, &RMF_CONNECT_DATA);
- reply = req_capsule_server_get(info->mti_pill, &RMF_CONNECT_DATA);
- 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;
- RETURN(0);
- }
-
- remote = data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT;
-
- if (remote) {
- med->med_rmtclient = 1;
- if (!req->rq_auth_remote)
- CWARN("client (local realm) %s -> target %s asked "
- "to be remote!\n", client, obd->obd_name);
- } else if (req->rq_auth_remote) {
- med->med_rmtclient = 1;
- CWARN("client (remote realm) %s -> target %s forced "
- "to be remote!\n", client, obd->obd_name);
- }
-
- if (med->med_rmtclient) {
- down(&med->med_idmap_sem);
- if (!med->med_idmap)
- med->med_idmap = lustre_idmap_init();
- up(&med->med_idmap_sem);
-
- if (IS_ERR(med->med_idmap)) {
- long err = PTR_ERR(med->med_idmap);
-
- med->med_idmap = NULL;
- CERROR("client %s -> target %s "
- "failed to init idmap [%ld]!\n",
- client, obd->obd_name, err);
- RETURN(err);
- } else if (!med->med_idmap) {
- CERROR("client %s -> target %s "
- "failed to init(2) idmap!\n",
- client, obd->obd_name);
- 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) {
- CERROR("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);
+ struct ptlrpc_request *req = tgt_ses_req(tsi);
+ struct mdt_export_data *med = mdt_req2med(req);
+ struct obd_export *exp = req->rq_export;
+ char *client = libcfs_nid2str(req->rq_peer.nid);
+ int rc = 0;
+ ENTRY;
+
+ if (exp_connect_rmtclient(exp)) {
+ mutex_lock(&med->med_idmap_mutex);
+ if (!med->med_idmap)
+ med->med_idmap = lustre_idmap_init();
+ mutex_unlock(&med->med_idmap_mutex);
+
+ if (IS_ERR(med->med_idmap)) {
+ long err = PTR_ERR(med->med_idmap);
+
+ med->med_idmap = NULL;
+ CERROR("%s: client %s -> target %s "
+ "failed to init idmap [%ld]!\n",
+ tgt_name(tsi->tsi_tgt), client,
+ tgt_name(tsi->tsi_tgt), err);
+ RETURN(err);
+ } else if (!med->med_idmap) {
+ CERROR("%s: client %s -> target %s "
+ "failed to init(2) idmap!\n",
+ tgt_name(tsi->tsi_tgt), client,
+ tgt_name(tsi->tsi_tgt));
+ RETURN(-ENOMEM);
+ }
+
+ CDEBUG(D_SEC, "%s: client %s -> target %s is remote.\n",
+ tgt_name(tsi->tsi_tgt), client,
+ tgt_name(tsi->tsi_tgt));
+ /* NB, MDS_CONNECT establish root idmap too! */
+ rc = mdt_handle_idmap(tsi);
+ }
+ RETURN(rc);
}
void mdt_cleanup_idmap(struct mdt_export_data *med)
{
- LASSERT(med->med_rmtclient);
-
- down(&med->med_idmap_sem);
+ mutex_lock(&med->med_idmap_mutex);
if (med->med_idmap != NULL) {
lustre_idmap_fini(med->med_idmap);
- med->med_idmap = NULL;
+ med->med_idmap = NULL;
}
- up(&med->med_idmap_sem);
+ mutex_unlock(&med->med_idmap_mutex);
}
static inline void mdt_revoke_export_locks(struct obd_export *exp)
ldlm_revoke_export_locks(exp);
}
-int mdt_handle_idmap(struct mdt_thread_info *info)
+int mdt_handle_idmap(struct tgt_session_info *tsi)
{
- struct ptlrpc_request *req = mdt_info_req(info);
- struct mdt_device *mdt = info->mti_mdt;
+ struct ptlrpc_request *req = tgt_ses_req(tsi);
+ struct mdt_device *mdt = mdt_exp2dev(req->rq_export);
struct mdt_export_data *med;
struct ptlrpc_user_desc *pud = req->rq_user_desc;
struct md_identity *identity;
RETURN(0);
med = mdt_req2med(req);
- if (!med->med_rmtclient)
+ if (!exp_connect_rmtclient(req->rq_export))
RETURN(0);
opc = lustre_msg_get_opc(req->rq_reqmsg);
LASSERT(med->med_idmap);
if (unlikely(!pud)) {
- CERROR("remote client must run with rq_user_desc present\n");
+ CDEBUG(D_SEC, "remote client must run with rq_user_desc "
+ "present\n");
RETURN(-EACCES);
- }
+ }
- if (req->rq_auth_mapped_uid == INVALID_UID) {
- CERROR("invalid authorized mapped uid, please check "
+ if (!uid_valid(make_kuid(&init_user_ns, req->rq_auth_mapped_uid))) {
+ CDEBUG(D_SEC, "invalid authorized mapped uid, please check "
"/etc/lustre/idmap.conf!\n");
RETURN(-EACCES);
}
if (is_identity_get_disabled(mdt->mdt_identity_cache)) {
- CERROR("remote client must run with identity_get enabled!\n");
+ CDEBUG(D_SEC, "remote client must run with identity_get "
+ "enabled!\n");
RETURN(-EACCES);
}
identity = mdt_identity_get(mdt->mdt_identity_cache,
req->rq_auth_mapped_uid);
- if (!identity) {
- CERROR("can't get mdt identity(%u), no mapping added\n",
+ if (IS_ERR(identity)) {
+ CDEBUG(D_SEC, "can't get mdt identity(%u), no mapping added\n",
req->rq_auth_mapped_uid);
RETURN(-EACCES);
}
switch (opc) {
- case SEC_CTX_INIT:
- case SEC_CTX_INIT_CONT:
- case MDS_CONNECT:
+ case SEC_CTX_INIT:
+ case SEC_CTX_INIT_CONT:
+ case MDS_CONNECT:
rc = lustre_idmap_add(med->med_idmap,
- pud->pud_uid, identity->mi_uid,
- pud->pud_gid, identity->mi_gid);
- break;
- case SEC_CTX_FINI:
+ pud->pud_uid, identity->mi_uid,
+ pud->pud_gid, identity->mi_gid);
+ break;
+ case SEC_CTX_FINI:
rc = lustre_idmap_del(med->med_idmap,
- pud->pud_uid, identity->mi_uid,
- pud->pud_gid, identity->mi_gid);
- break;
+ pud->pud_uid, identity->mi_uid,
+ pud->pud_gid, identity->mi_gid);
+ break;
}
mdt_identity_put(mdt->mdt_identity_cache, identity);
RETURN(rc);
switch (opc) {
- case SEC_CTX_INIT:
- case SEC_CTX_INIT_CONT:
- case SEC_CTX_FINI:
- mdt_revoke_export_locks(req->rq_export);
- break;
+ case SEC_CTX_INIT:
+ case SEC_CTX_INIT_CONT:
+ case SEC_CTX_FINI:
+ mdt_revoke_export_locks(req->rq_export);
+ break;
}
RETURN(0);
int ptlrpc_user_desc_do_idmap(struct ptlrpc_request *req,
struct ptlrpc_user_desc *pud)
{
- struct mdt_export_data *med = mdt_req2med(req);
+ struct mdt_export_data *med = mdt_req2med(req);
struct lustre_idmap_table *idmap = med->med_idmap;
uid_t uid, fsuid;
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);
if (uid == CFS_IDMAP_NOTFOUND) {
- CERROR("no mapping for uid %u\n", pud->pud_uid);
+ CDEBUG(D_SEC, "no mapping for uid %u\n", pud->pud_uid);
return -EACCES;
}
} else {
fsuid = lustre_idmap_lookup_uid(NULL, idmap, 0, pud->pud_fsuid);
if (fsuid == CFS_IDMAP_NOTFOUND) {
- CERROR("no mapping for fsuid %u\n", pud->pud_fsuid);
+ CDEBUG(D_SEC, "no mapping for fsuid %u\n",
+ pud->pud_fsuid);
return -EACCES;
}
}
gid = lustre_idmap_lookup_gid(NULL, idmap, 0, pud->pud_gid);
if (gid == CFS_IDMAP_NOTFOUND) {
- CERROR("no mapping for gid %u\n", pud->pud_gid);
+ CDEBUG(D_SEC, "no mapping for gid %u\n", pud->pud_gid);
return -EACCES;
}
} else {
fsgid = lustre_idmap_lookup_gid(NULL, idmap, 0, pud->pud_fsgid);
if (fsgid == CFS_IDMAP_NOTFOUND) {
- CERROR("no mapping for fsgid %u\n", pud->pud_fsgid);
+ CDEBUG(D_SEC, "no mapping for fsgid %u\n",
+ pud->pud_fsgid);
return -EACCES;
}
}
*/
void mdt_body_reverse_idmap(struct mdt_thread_info *info, struct mdt_body *body)
{
- struct ptlrpc_request *req = mdt_info_req(info);
- struct md_ucred *uc = mdt_ucred(info);
- struct mdt_export_data *med = mdt_req2med(req);
+ struct ptlrpc_request *req = mdt_info_req(info);
+ struct lu_ucred *uc = mdt_ucred(info);
+ 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) {
- uid_t uid = lustre_idmap_lookup_uid(uc, idmap, 1, body->uid);
+ if (body->mbo_valid & OBD_MD_FLUID) {
+ uid_t uid;
- if (uid == CFS_IDMAP_NOTFOUND) {
- uid = NOBODY_UID;
- if (body->valid & OBD_MD_FLMODE)
- body->mode = (body->mode & ~S_IRWXU) |
- ((body->mode & S_IRWXO) << 6);
- }
+ uid = lustre_idmap_lookup_uid(uc, idmap, 1, body->mbo_uid);
- body->uid = uid;
- }
+ if (uid == CFS_IDMAP_NOTFOUND) {
+ uid = NOBODY_UID;
+ if (body->mbo_valid & OBD_MD_FLMODE)
+ body->mbo_mode = (body->mbo_mode & ~S_IRWXU) |
+ ((body->mbo_mode & S_IRWXO) << 6);
+ }
- if (body->valid & OBD_MD_FLGID) {
- gid_t gid = lustre_idmap_lookup_gid(uc, idmap, 1, body->gid);
+ body->mbo_uid = uid;
+ }
- if (gid == CFS_IDMAP_NOTFOUND) {
- gid = NOBODY_GID;
- if (body->valid & OBD_MD_FLMODE)
- body->mode = (body->mode & ~S_IRWXG) |
- ((body->mode & S_IRWXO) << 3);
- }
+ if (body->mbo_valid & OBD_MD_FLGID) {
+ gid_t gid;
+
+ gid = lustre_idmap_lookup_gid(uc, idmap, 1, body->mbo_gid);
+
+ if (gid == CFS_IDMAP_NOTFOUND) {
+ gid = NOBODY_GID;
+ if (body->mbo_valid & OBD_MD_FLMODE)
+ body->mbo_mode = (body->mbo_mode & ~S_IRWXG) |
+ ((body->mbo_mode & S_IRWXO) << 3);
+ }
- body->gid = gid;
+ body->mbo_gid = gid;
}
}
/* Do not ignore root_squash for non-setattr case. */
int mdt_fix_attr_ucred(struct mdt_thread_info *info, __u32 op)
{
- struct ptlrpc_request *req = mdt_info_req(info);
- struct md_ucred *uc = mdt_ucred(info);
- struct lu_attr *attr = &info->mti_attr.ma_attr;
- struct mdt_export_data *med = mdt_req2med(req);
+ struct ptlrpc_request *req = mdt_info_req(info);
+ struct lu_ucred *uc = mdt_ucred_check(info);
+ struct lu_attr *attr = &info->mti_attr.ma_attr;
+ struct mdt_export_data *med = mdt_req2med(req);
struct lustre_idmap_table *idmap = med->med_idmap;
- if ((uc->mu_valid != UCRED_OLD) && (uc->mu_valid != UCRED_NEW))
- return -EINVAL;
+ if (uc == NULL)
+ return -EINVAL;
if (op != REINT_SETATTR) {
- if ((attr->la_valid & LA_UID) && (attr->la_uid != -1))
- attr->la_uid = uc->mu_fsuid;
- /* for S_ISGID, inherit gid from his parent, such work will be
- * 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) {
+ if ((attr->la_valid & LA_UID) && (attr->la_uid != -1))
+ attr->la_uid = uc->uc_fsuid;
+ /* for S_ISGID, inherit gid from his parent, such work will be
+ * done in cmm/mdd layer, here set all cases as uc->uc_fsgid. */
+ if ((attr->la_valid & LA_GID) && (attr->la_gid != -1))
+ attr->la_gid = uc->uc_fsgid;
+ } 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,
- attr->la_uid);
+ attr->la_uid);
if (uid == CFS_IDMAP_NOTFOUND) {
- CWARN("Deny chown to uid %u\n", attr->la_uid);
+ CDEBUG(D_SEC, "Deny chown to uid %u\n",
+ attr->la_uid);
return -EPERM;
}
}
if ((attr->la_valid & LA_GID) && (attr->la_gid != -1)) {
gid_t gid = lustre_idmap_lookup_gid(uc, idmap, 0,
- attr->la_gid);
+ attr->la_gid);
if (gid == CFS_IDMAP_NOTFOUND) {
- CWARN("Deny chown to gid %u\n", attr->la_gid);
+ CDEBUG(D_SEC, "Deny chown to gid %u\n",
+ attr->la_gid);
return -EPERM;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff