-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * linux/mdt/mdt_xattr.c
- * Lustre Metadata Target (mdt) extended attributes management.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Copyright (C) 2002-2006 Cluster File Systems, Inc.
- * Author: Peter Braam <braam@clusterfs.com>
- * Author: Andreas Dilger <adilger@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- * Author: Huang Hua <huanghua@clusterfs.com>
+ * 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 the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of Cluster File Systems, Inc.
+ * 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).
*
- * You may have signed or agreed to another license before downloading
- * this software. If so, you are bound by the terms and conditions
- * of that agreement, and the following does not apply to you. See the
- * LICENSE file included with this distribution for more information.
+ * 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
*
- * If you did not agree to a different license, then this copy of Lustre
- * is open source 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.
+ * 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.
*
- * In either case, 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
- * license text for more details.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/mdt/mdt_xattr.c
+ *
+ * Lustre Metadata Target (mdt) extended attributes management.
+ *
+ * Author: Peter Braam <braam@clusterfs.com>
+ * Author: Andreas Dilger <adilger@clusterfs.com>
+ * Author: Phil Schwan <phil@clusterfs.com>
+ * Author: Huang Hua <huanghua@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
-/* prerequisite for linux/xattr.h */
-#include <linux/types.h>
-/* prerequisite for linux/xattr.h */
-#include <linux/fs.h>
-/* XATTR_{REPLACE,CREATE} */
-#include <linux/xattr.h>
-
+#include <lustre_acl.h>
#include "mdt_internal.h"
static const char user_string[] = "user.";
int size, rc;
ENTRY;
-
+
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_GETXATTR_PACK))
RETURN(-ENOMEM);
/* Determine how many bytes we need */
- if ((valid & OBD_MD_FLXATTR) == OBD_MD_FLXATTR) {
+ if (valid & OBD_MD_FLXATTR) {
xattr_name = req_capsule_client_get(pill, &RMF_NAME);
if (!xattr_name)
RETURN(-EFAULT);
if (!(req->rq_export->exp_connect_flags & OBD_CONNECT_XATTR) &&
!strncmp(xattr_name, user_string, sizeof(user_string) - 1))
RETURN(-EOPNOTSUPP);
-
+
size = mo_xattr_get(info->mti_env,
mdt_object_child(info->mti_object),
&LU_BUF_NULL, xattr_name);
- } else if ((valid & OBD_MD_FLXATTRLS) == OBD_MD_FLXATTRLS) {
+ } else if (valid & OBD_MD_FLXATTRLS) {
size = mo_xattr_list(info->mti_env,
mdt_object_child(info->mti_object),
&LU_BUF_NULL);
RETURN(-EINVAL);
}
- if (size < 0) {
- if (size == -ENODATA)
- size = 0;
- else if (size != -EOPNOTSUPP) {
- CDEBUG(D_INFO, "Error geting EA size: %d\n", size);
- RETURN(size);
- }
+ if (size == -ENODATA) {
+ size = 0;
+ } else if (size < 0) {
+ CERROR("Error geting EA size: %d\n", size);
+ RETURN(size);
}
if (info->mti_body->eadatasize != 0 &&
RETURN(-ERANGE);
req_capsule_set_size(pill, &RMF_EADATA, RCL_SERVER,
- min_t(int, size, info->mti_body->eadatasize));
-
+ info->mti_body->eadatasize == 0 ? 0 : size);
rc = req_capsule_server_pack(pill);
if (rc) {
LASSERT(rc < 0);
{
struct ptlrpc_request *req = mdt_info_req(info);
struct mdt_export_data *med = mdt_req2med(req);
- struct md_ucred *uc = mdt_ucred(info);
+ struct lu_ucred *uc = mdt_ucred(info);
struct mdt_body *reqbody;
struct mdt_body *repbody = NULL;
struct md_object *next;
struct lu_buf *buf;
+ __u32 remote = exp_connect_rmtclient(info->mti_exp);
+ __u32 perm;
int easize, rc;
ENTRY;
if (reqbody == NULL)
RETURN(err_serious(-EFAULT));
- rc = mdt_init_ucred(info, reqbody);
+ rc = mdt_init_ucred(info, reqbody);
if (rc)
RETURN(err_serious(rc));
next = mdt_object_child(info->mti_object);
if (info->mti_body->valid & OBD_MD_FLRMTRGETFACL) {
- __u32 perm = mdt_identity_get_perm(uc->mu_identity,
- med->med_rmtclient,
- req->rq_peer.nid);
+ if (unlikely(!remote))
+ GOTO(out, rc = err_serious(-EINVAL));
- LASSERT(med->med_rmtclient);
+ perm = mdt_identity_get_perm(uc->uc_identity, remote,
+ req->rq_peer.nid);
if (!(perm & CFS_RMTACL_PERM))
GOTO(out, rc = err_serious(-EPERM));
if (easize == 0 || reqbody->eadatasize == 0)
GOTO(out, rc = easize);
+
buf = &info->mti_buf;
buf->lb_buf = req_capsule_server_get(info->mti_pill, &RMF_EADATA);
buf->lb_len = easize;
if (rc > 0 && flags != CFS_IC_NOTHING) {
int rc1;
- LASSERT(med->med_rmtclient);
+ if (unlikely(!remote))
+ GOTO(out, rc = -EINVAL);
+
rc1 = lustre_posix_acl_xattr_id2client(uc,
med->med_idmap,
(posix_acl_xattr_header *)(buf->lb_buf),
EXIT;
out:
if (rc >= 0) {
+ mdt_counter_incr(req, LPROC_MDT_GETXATTR);
repbody->eadatasize = rc;
rc = 0;
}
{
struct ptlrpc_request *req = mdt_info_req(info);
struct mdt_export_data *med = mdt_req2med(req);
- struct md_ucred *uc = mdt_ucred(info);
+ struct lu_ucred *uc = mdt_ucred(info);
struct lu_buf *buf = &info->mti_buf;
int rc;
ENTRY;
rc = lustre_ext_acl_xattr_id2server(uc, med->med_idmap, header);
if (rc)
RETURN(rc);
-
+
rc = mo_xattr_get(info->mti_env, next, &LU_BUF_NULL, xattr_name);
if (rc == -ENODATA)
rc = 0;
buf->lb_len = rc;
if (buf->lb_len > 0) {
- OBD_ALLOC(buf->lb_buf, buf->lb_len);
+ OBD_ALLOC_LARGE(buf->lb_buf, buf->lb_len);
if (unlikely(buf->lb_buf == NULL))
RETURN(-ENOMEM);
_out:
if (rc <= 0 && buf->lb_buf != NULL)
- OBD_FREE(buf->lb_buf, buf->lb_len);
+ OBD_FREE_LARGE(buf->lb_buf, buf->lb_len);
return rc;
}
struct mdt_lock_handle *unused)
{
struct ptlrpc_request *req = mdt_info_req(info);
- struct mdt_export_data *med = mdt_req2med(req);
- struct md_ucred *uc = mdt_ucred(info);
- const char user_string[] = "user.";
- const char trust_string[] = "trusted.";
+ struct lu_ucred *uc = mdt_ucred(info);
struct mdt_lock_handle *lh;
- struct req_capsule *pill = info->mti_pill;
const struct lu_env *env = info->mti_env;
struct lu_buf *buf = &info->mti_buf;
struct mdt_reint_record *rr = &info->mti_rr;
+ struct md_attr *ma = &info->mti_attr;
struct lu_attr *attr = &info->mti_attr.ma_attr;
- struct mdt_object *obj;
+ struct mdt_object *obj;
struct md_object *child;
__u64 valid = attr->la_valid;
- const char *xattr_name;
- int xattr_len = 0;
+ const char *xattr_name = rr->rr_name;
+ int xattr_len = rr->rr_eadatalen;
__u64 lockpart;
int rc;
posix_acl_xattr_header *new_xattr = NULL;
+ __u32 remote = exp_connect_rmtclient(info->mti_exp);
+ __u32 perm;
ENTRY;
CDEBUG(D_INODE, "setxattr for "DFID"\n", PFID(rr->rr_fid1));
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_SETXATTR))
RETURN(err_serious(-ENOMEM));
- xattr_name = rr->rr_name;
-
CDEBUG(D_INODE, "%s xattr %s\n",
valid & OBD_MD_FLXATTR ? "set" : "remove", xattr_name);
- rc = mdt_init_ucred_reint(info);
+ rc = mdt_init_ucred_reint(info);
if (rc != 0)
RETURN(rc);
if (valid & OBD_MD_FLRMTRSETFACL) {
- __u32 perm = mdt_identity_get_perm(uc->mu_identity,
- med->med_rmtclient,
- req->rq_peer.nid);
+ if (unlikely(!remote))
+ GOTO(out, rc = err_serious(-EINVAL));
- LASSERT(med->med_rmtclient);
+ perm = mdt_identity_get_perm(uc->uc_identity, remote,
+ req->rq_peer.nid);
if (!(perm & CFS_RMTACL_PERM))
GOTO(out, rc = err_serious(-EPERM));
}
- /* various sanity check for xattr name */
- xattr_name = req_capsule_client_get(pill, &RMF_NAME);
- if (!xattr_name)
- GOTO(out, rc = err_serious(-EFAULT));
-
- if (strncmp(xattr_name, trust_string, sizeof(trust_string) - 1) == 0) {
- if (strcmp(xattr_name + 8, XATTR_NAME_LOV) == 0)
+ if (strncmp(xattr_name, XATTR_USER_PREFIX,
+ sizeof(XATTR_USER_PREFIX) - 1) == 0) {
+ if (!(req->rq_export->exp_connect_flags & OBD_CONNECT_XATTR))
+ GOTO(out, rc = -EOPNOTSUPP);
+ if (strcmp(xattr_name, XATTR_NAME_LOV) == 0)
GOTO(out, rc = -EACCES);
- }
-
- if (!(req->rq_export->exp_connect_flags & OBD_CONNECT_XATTR) &&
- (strncmp(xattr_name, user_string, sizeof(user_string) - 1) == 0)) {
- GOTO(out, rc = -EOPNOTSUPP);
+ if (strcmp(xattr_name, XATTR_NAME_LMA) == 0)
+ GOTO(out, rc = 0);
+ if (strcmp(xattr_name, XATTR_NAME_LINK) == 0)
+ GOTO(out, rc = 0);
+ } else if ((valid & OBD_MD_FLXATTR) &&
+ (strncmp(xattr_name, XATTR_NAME_ACL_ACCESS,
+ sizeof(XATTR_NAME_ACL_ACCESS) - 1) == 0 ||
+ strncmp(xattr_name, XATTR_NAME_ACL_DEFAULT,
+ sizeof(XATTR_NAME_ACL_DEFAULT) - 1) == 0)) {
+ /* currently lustre limit acl access size */
+ if (xattr_len > LUSTRE_POSIX_ACL_MAX_SIZE)
+ GOTO(out, -ERANGE);
}
lockpart = MDS_INODELOCK_UPDATE;
+ /* Revoke all clients' lookup lock, since the access
+ * permissions for this inode is changed when ACL_ACCESS is
+ * set. This isn't needed for ACL_DEFAULT, since that does
+ * not change the access permissions of this inode, nor any
+ * other existing inodes. It is setting the ACLs inherited
+ * by new directories/files at create time. */
if (!strcmp(xattr_name, XATTR_NAME_ACL_ACCESS))
lockpart |= MDS_INODELOCK_LOOKUP;
lh = &info->mti_lh[MDT_LH_PARENT];
- mdt_lock_reg_init(lh, LCK_PW);
+ /* ACLs were sent to clients under LCK_CR locks, so taking LCK_EX
+ * to cancel them. */
+ mdt_lock_reg_init(lh, LCK_EX);
obj = mdt_object_find_lock(info, rr->rr_fid1, lh, lockpart);
if (IS_ERR(obj))
GOTO(out, rc = PTR_ERR(obj));
+ info->mti_mos = obj;
+ rc = mdt_version_get_check_save(info, obj, 0);
+ if (rc)
+ GOTO(out_unlock, rc);
+
+ if (unlikely(!(valid & OBD_MD_FLCTIME))) {
+ /* This isn't strictly an error, but all current clients
+ * should set OBD_MD_FLCTIME when setting attributes. */
+ CWARN("%s: client miss to set OBD_MD_FLCTIME when "
+ "setxattr %s: [object "DFID"] [valid "LPU64"]\n",
+ info->mti_exp->exp_obd->obd_name, xattr_name,
+ PFID(rr->rr_fid1), valid);
+ attr->la_ctime = cfs_time_current_sec();
+ }
+ attr->la_valid = LA_CTIME;
child = mdt_object_child(obj);
- if ((valid & OBD_MD_FLXATTR) == OBD_MD_FLXATTR) {
- char * xattr;
-
- if (!req_capsule_field_present(pill, &RMF_EADATA, RCL_CLIENT)) {
- CDEBUG(D_INFO, "no xattr data supplied\n");
- GOTO(out_unlock, rc = -EFAULT);
- }
+ if (valid & OBD_MD_FLXATTR) {
+ char *xattr = (void *)rr->rr_eadata;
- xattr_len = req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT);
- if (xattr_len) {
+ if (xattr_len > 0) {
int flags = 0;
- xattr = req_capsule_client_get(pill, &RMF_EADATA);
-
if (valid & OBD_MD_FLRMTLSETFACL) {
- LASSERT(med->med_rmtclient);
+ if (unlikely(!remote))
+ GOTO(out_unlock, rc = -EINVAL);
+
xattr_len = mdt_rmtlsetfacl(info, child,
xattr_name,
(ext_acl_xattr_header *)xattr,
buf->lb_buf = xattr;
buf->lb_len = xattr_len;
rc = mo_xattr_set(env, child, buf, xattr_name, flags);
+ /* update ctime after xattr changed */
+ if (rc == 0) {
+ ma->ma_attr_flags |= MDS_PERM_BYPASS;
+ mo_attr_set(env, child, ma);
+ }
}
- } else if ((valid & OBD_MD_FLXATTRRM) == OBD_MD_FLXATTRRM) {
+ } else if (valid & OBD_MD_FLXATTRRM) {
rc = mo_xattr_del(env, child, xattr_name);
+ /* update ctime after xattr changed */
+ if (rc == 0) {
+ ma->ma_attr_flags |= MDS_PERM_BYPASS;
+ mo_attr_set(env, child, ma);
+ }
} else {
CDEBUG(D_INFO, "valid bits: "LPX64"\n", valid);
rc = -EINVAL;
}
+ if (rc == 0)
+ mdt_counter_incr(req, LPROC_MDT_SETXATTR);
+
EXIT;
out_unlock:
mdt_object_unlock_put(info, obj, lh, rc);
if (unlikely(new_xattr != NULL))
lustre_posix_acl_xattr_free(new_xattr, xattr_len);
out:
- mdt_exit_ucred(info);
- return rc;
+ mdt_exit_ucred(info);
+ return rc;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff