-/* -*- 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.gnu.org/licenses/gpl-2.0.html
*
- * 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.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
*
- * 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.
+ * Copyright (c) 2011, 2017, 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 <obd_class.h>
+#include <lustre_nodemap.h>
+#include <lustre_acl.h>
#include "mdt_internal.h"
/* return EADATA length to the caller. negative value means error */
static int mdt_getxattr_pack_reply(struct mdt_thread_info * info)
{
- struct req_capsule *pill = info->mti_pill ;
- struct ptlrpc_request *req = mdt_info_req(info);
- char *xattr_name;
- __u64 valid = info->mti_body->valid;
- 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) {
- 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) {
- size = mo_xattr_list(info->mti_env,
- mdt_object_child(info->mti_object),
- &LU_BUF_NULL);
- } else {
- CDEBUG(D_INFO, "Valid bits: "LPX64"\n", info->mti_body->valid);
- 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 (info->mti_body->eadatasize != 0 &&
- info->mti_body->eadatasize < size)
- RETURN(-ERANGE);
-
- req_capsule_set_size(pill, &RMF_EADATA, RCL_SERVER,
- min_t(int, size, info->mti_body->eadatasize));
+ struct req_capsule *pill = info->mti_pill;
+ struct ptlrpc_request *req = mdt_info_req(info);
+ const char *xattr_name;
+ u64 valid;
+ static const char user_string[] = "user.";
+ int size;
+ int rc = 0;
+ int rc2;
+ ENTRY;
+
+ valid = info->mti_body->mbo_valid & (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS);
+
+ /* Determine how many bytes we need */
+ if (valid == OBD_MD_FLXATTR) {
+ xattr_name = req_capsule_client_get(pill, &RMF_NAME);
+ if (!xattr_name)
+ RETURN(-EFAULT);
+
+ if (!(exp_connect_flags(req->rq_export) & 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);
+ if (size == -ENODATA) {
+ /* XXX: Some client code will not handle -ENODATA
+ * for XATTR_NAME_LOV (trusted.lov) properly. */
+ if (strcmp(xattr_name, XATTR_NAME_LOV) == 0)
+ rc = 0;
+ else
+ rc = -ENODATA;
+
+ size = 0;
+ }
+ } else if (valid == OBD_MD_FLXATTRLS) {
+ xattr_name = "list";
+ size = mo_xattr_list(info->mti_env,
+ mdt_object_child(info->mti_object),
+ &LU_BUF_NULL);
+ } else if (valid == OBD_MD_FLXATTRALL) {
+ xattr_name = "all";
+ /* N.B. eadatasize = 0 is not valid for FLXATTRALL */
+ /* We could calculate accurate sizes, but this would
+ * introduce a lot of overhead, let's do it later... */
+ size = info->mti_body->mbo_eadatasize;
+ req_capsule_set_size(pill, &RMF_EAVALS, RCL_SERVER, size);
+ req_capsule_set_size(pill, &RMF_EAVALS_LENS, RCL_SERVER, size);
+ } else {
+ CDEBUG(D_INFO, "Valid bits: %#llx\n",
+ info->mti_body->mbo_valid);
+ RETURN(-EINVAL);
+ }
+
+ if (size < 0) {
+ if (size != -EOPNOTSUPP && size != -ENOENT)
+ CERROR("%s: error geting EA size for '%s': rc = %d\n",
+ mdt_obd_name(info->mti_mdt), xattr_name, size);
+ RETURN(size);
+ }
+
+ if (req_capsule_has_field(pill, &RMF_ACL, RCL_SERVER))
+ req_capsule_set_size(pill, &RMF_ACL, RCL_SERVER,
+ LUSTRE_POSIX_ACL_MAX_SIZE_OLD);
+
+ req_capsule_set_size(pill, &RMF_EADATA, RCL_SERVER,
+ info->mti_body->mbo_eadatasize == 0 ? 0 : size);
+
+ rc2 = req_capsule_server_pack(pill);
+ if (rc2 < 0)
+ RETURN(rc2);
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_MDS_GETXATTR_PACK))
+ RETURN(-ENOMEM);
+
+ RETURN(rc < 0 ? rc : size);
+}
- rc = req_capsule_server_pack(pill);
- if (rc) {
- LASSERT(rc < 0);
- RETURN(rc);
- }
+static int mdt_nodemap_map_acl(struct mdt_thread_info *info, void *buf,
+ size_t size, const char *name,
+ enum nodemap_tree_type tree_type)
+{
+ struct lu_nodemap *nodemap;
+ struct obd_export *exp = info->mti_exp;
+ int rc = size;
+
+ ENTRY;
+
+ if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0 ||
+ strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0) {
+ if (size > info->mti_mdt->mdt_max_ea_size ||
+ (!exp_connect_large_acl(exp) &&
+ size > LUSTRE_POSIX_ACL_MAX_SIZE_OLD))
+ GOTO(out, rc = -ERANGE);
+
+ nodemap = nodemap_get_from_exp(exp);
+ if (IS_ERR(nodemap))
+ GOTO(out, rc = PTR_ERR(nodemap));
+
+ rc = nodemap_map_acl(nodemap, buf, size, tree_type);
+ nodemap_putref(nodemap);
+ if (rc < 0)
+ GOTO(out, rc);
+ }
+out:
+ RETURN(rc);
+}
- RETURN(size);
+static int mdt_getxattr_all(struct mdt_thread_info *info,
+ struct mdt_body *reqbody, struct mdt_body *repbody,
+ struct lu_buf *buf, struct md_object *next)
+{
+ const struct lu_env *env = info->mti_env;
+ char *v, *b, *eadatahead, *eadatatail;
+ __u32 *sizes;
+ int eadatasize, eavallen = 0, eavallens = 0, rc;
+
+ ENTRY;
+
+ /*
+ * The format of the pill is the following:
+ * EADATA: attr1\0attr2\0...attrn\0
+ * EAVALS: val1val2...valn
+ * EAVALS_LENS: 4,4,...4
+ */
+
+ eadatahead = buf->lb_buf;
+
+ /* Fill out EADATA first */
+ rc = mo_xattr_list(env, next, buf);
+ if (rc < 0)
+ GOTO(out_shrink, rc);
+
+ eadatasize = rc;
+ eadatatail = eadatahead + eadatasize;
+
+ v = req_capsule_server_get(info->mti_pill, &RMF_EAVALS);
+ sizes = req_capsule_server_get(info->mti_pill, &RMF_EAVALS_LENS);
+
+ /* Fill out EAVALS and EAVALS_LENS */
+ for (b = eadatahead; b < eadatatail; b += strlen(b) + 1, v += rc) {
+ buf->lb_buf = v;
+ buf->lb_len = reqbody->mbo_eadatasize - eavallen;
+ rc = mo_xattr_get(env, next, buf, b);
+ if (rc < 0)
+ GOTO(out_shrink, rc);
+ rc = mdt_nodemap_map_acl(info, buf->lb_buf, rc, b,
+ NODEMAP_FS_TO_CLIENT);
+ if (rc < 0)
+ GOTO(out_shrink, rc);
+ sizes[eavallens] = rc;
+ eavallens++;
+ eavallen += rc;
+ }
+
+out_shrink:
+ if (rc < 0) {
+ eadatasize = 0;
+ eavallens = 0;
+ eavallen = 0;
+ }
+ repbody->mbo_aclsize = eavallen;
+ repbody->mbo_max_mdsize = eavallens;
+
+ req_capsule_shrink(info->mti_pill, &RMF_EAVALS, eavallen, RCL_SERVER);
+ req_capsule_shrink(info->mti_pill, &RMF_EAVALS_LENS,
+ eavallens * sizeof(__u32), RCL_SERVER);
+ req_capsule_shrink(info->mti_pill, &RMF_EADATA, eadatasize, RCL_SERVER);
+
+ if (rc >= 0)
+ RETURN(eadatasize);
+ return rc;
}
int mdt_getxattr(struct mdt_thread_info *info)
{
- struct ptlrpc_request *req = mdt_info_req(info);
- struct mdt_export_data *med = mdt_req2med(req);
- struct md_ucred *uc = mdt_ucred(info);
+ struct ptlrpc_request *req = mdt_info_req(info);
struct mdt_body *reqbody;
struct mdt_body *repbody = NULL;
struct md_object *next;
struct lu_buf *buf;
int easize, rc;
+ u64 valid;
ENTRY;
LASSERT(info->mti_object != NULL);
- LASSERT(lu_object_assert_exists(&info->mti_object->mot_obj.mo_lu));
+ LASSERT(lu_object_assert_exists(&info->mti_object->mot_obj));
- CDEBUG(D_INODE, "getxattr "DFID"\n", PFID(&info->mti_body->fid1));
+ CDEBUG(D_INODE, "getxattr "DFID"\n", PFID(&info->mti_body->mbo_fid1));
reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
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);
-
- LASSERT(med->med_rmtclient);
- if (!(perm & CFS_RMTACL_PERM))
- GOTO(out, rc = err_serious(-EPERM));
-
- rc = mo_permission(info->mti_env, NULL, next, NULL,
- MAY_RGETFACL);
- if (rc)
- GOTO(out, rc = err_serious(rc));
- }
-
easize = mdt_getxattr_pack_reply(info);
- if (easize < 0)
- GOTO(out, rc = err_serious(easize));
+ if (easize == -ENODATA)
+ GOTO(out, rc = easize);
+ else if (easize < 0)
+ GOTO(out, rc = err_serious(easize));
repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
LASSERT(repbody != NULL);
/* No need further getxattr. */
- 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 (info->mti_body->valid & OBD_MD_FLXATTR) {
- int flags = CFS_IC_NOTHING;
- char *xattr_name = req_capsule_client_get(info->mti_pill,
- &RMF_NAME);
- CDEBUG(D_INODE, "getxattr %s\n", xattr_name);
-
- rc = mo_xattr_get(info->mti_env, next, buf, xattr_name);
- if (rc < 0) {
- CERROR("getxattr failed: %d\n", rc);
- GOTO(out, rc);
- }
-
- if (info->mti_body->valid &
- (OBD_MD_FLRMTLSETFACL | OBD_MD_FLRMTLGETFACL))
- flags = CFS_IC_ALL;
- else if (info->mti_body->valid & OBD_MD_FLRMTRGETFACL)
- flags = CFS_IC_MAPPED;
-
- if (rc > 0 && flags != CFS_IC_NOTHING) {
- int rc1;
-
- LASSERT(med->med_rmtclient);
- rc1 = lustre_posix_acl_xattr_id2client(uc,
- med->med_idmap,
- (posix_acl_xattr_header *)(buf->lb_buf),
- rc, flags);
- if (unlikely(rc1 < 0))
- rc = rc1;
- }
- } else if (info->mti_body->valid & OBD_MD_FLXATTRLS) {
- CDEBUG(D_INODE, "listxattr\n");
-
- rc = mo_xattr_list(info->mti_env, next, buf);
- if (rc < 0)
- CDEBUG(D_INFO, "listxattr failed: %d\n", rc);
- } else
- LBUG();
-
- EXIT;
+ if (easize == 0 || reqbody->mbo_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;
+
+ valid = info->mti_body->mbo_valid & (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS);
+
+ if (valid == OBD_MD_FLXATTR) {
+ const char *xattr_name = req_capsule_client_get(info->mti_pill,
+ &RMF_NAME);
+ rc = mo_xattr_get(info->mti_env, next, buf, xattr_name);
+ if (rc < 0)
+ GOTO(out, rc);
+
+ rc = mdt_nodemap_map_acl(info, buf->lb_buf, rc, xattr_name,
+ NODEMAP_FS_TO_CLIENT);
+ } else if (valid == OBD_MD_FLXATTRLS) {
+ CDEBUG(D_INODE, "listxattr\n");
+
+ rc = mo_xattr_list(info->mti_env, next, buf);
+ if (rc < 0)
+ CDEBUG(D_INFO, "listxattr failed: %d\n", rc);
+ } else if (valid == OBD_MD_FLXATTRALL) {
+ rc = mdt_getxattr_all(info, reqbody, repbody,
+ buf, next);
+ } else
+ LBUG();
+
+ EXIT;
out:
- if (rc >= 0) {
- repbody->eadatasize = rc;
- rc = 0;
- }
- mdt_exit_ucred(info);
- return rc;
+ if (rc >= 0) {
+ mdt_counter_incr(req, LPROC_MDT_GETXATTR);
+ /* LU-11109: Set OBD_MD_FLXATTR on success so that
+ * newer clients can distinguish between nonexistent
+ * xattrs and zero length values. */
+ repbody->mbo_valid |= OBD_MD_FLXATTR;
+ repbody->mbo_eadatasize = rc;
+ rc = 0;
+ }
+ mdt_exit_ucred(info);
+ return rc;
}
-static int mdt_rmtlsetfacl(struct mdt_thread_info *info,
- struct md_object *next,
- const char *xattr_name,
- ext_acl_xattr_header *header,
- posix_acl_xattr_header **out)
+/* shrink dir layout after migration */
+static int mdt_dir_layout_shrink(struct mdt_thread_info *info)
{
- 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_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;
- else if (rc < 0)
- RETURN(rc);
-
- buf->lb_len = rc;
- if (buf->lb_len > 0) {
- OBD_ALLOC(buf->lb_buf, buf->lb_len);
- if (unlikely(buf->lb_buf == NULL))
- RETURN(-ENOMEM);
-
- rc = mo_xattr_get(info->mti_env, next, buf, xattr_name);
- if (rc < 0) {
- CERROR("getxattr failed: %d\n", rc);
- GOTO(_out, rc);
- }
- } else
- buf->lb_buf = NULL;
-
- rc = lustre_acl_xattr_merge2posix((posix_acl_xattr_header *)(buf->lb_buf),
- buf->lb_len, header, out);
- EXIT;
-
-_out:
- if (rc <= 0 && buf->lb_buf != NULL)
- OBD_FREE(buf->lb_buf, buf->lb_len);
- return rc;
+ const struct lu_env *env = info->mti_env;
+ struct mdt_device *mdt = info->mti_mdt;
+ struct lu_ucred *uc = mdt_ucred(info);
+ struct mdt_reint_record *rr = &info->mti_rr;
+ struct lmv_user_md *lmu = rr->rr_eadata;
+ __u32 lum_stripe_count = lmu->lum_stripe_count;
+ struct lu_buf *buf = &info->mti_buf;
+ struct lmv_mds_md_v1 *lmv;
+ struct md_attr *ma = &info->mti_attr;
+ struct ldlm_enqueue_info *einfo = &info->mti_einfo[0];
+ struct mdt_object *pobj = NULL;
+ struct mdt_object *obj;
+ struct mdt_lock_handle *lhp = NULL;
+ struct mdt_lock_handle *lhc;
+ int rc;
+
+ ENTRY;
+
+ if (!mdt->mdt_enable_dir_migration)
+ RETURN(-EPERM);
+
+ if (!md_capable(uc, CFS_CAP_SYS_ADMIN) &&
+ uc->uc_gid != mdt->mdt_enable_remote_dir_gid &&
+ mdt->mdt_enable_remote_dir_gid != -1)
+ RETURN(-EPERM);
+
+ /* mti_big_lmm is used to save LMV, but it may be uninitialized. */
+ if (unlikely(!info->mti_big_lmm)) {
+ info->mti_big_lmmsize = lmv_mds_md_size(64, LMV_MAGIC);
+ OBD_ALLOC(info->mti_big_lmm, info->mti_big_lmmsize);
+ if (!info->mti_big_lmm)
+ RETURN(-ENOMEM);
+ }
+
+ obj = mdt_object_find(env, mdt, rr->rr_fid1);
+ if (IS_ERR(obj))
+ RETURN(PTR_ERR(obj));
+
+ /* get parent from PFID */
+ rc = mdt_attr_get_pfid(info, obj, &ma->ma_pfid);
+ if (rc)
+ GOTO(put_obj, rc);
+
+ pobj = mdt_object_find(env, mdt, &ma->ma_pfid);
+ if (IS_ERR(pobj))
+ GOTO(put_obj, rc = PTR_ERR(pobj));
+
+ /* revoke object remote LOOKUP lock */
+ if (mdt_object_remote(pobj)) {
+ rc = mdt_revoke_remote_lookup_lock(info, pobj, obj);
+ if (rc)
+ GOTO(put_pobj, rc);
+ }
+
+ /*
+ * lock parent if dir will be shrunk to 1 stripe, because dir will be
+ * converted to normal directory, as will change dir fid and update
+ * namespace of parent.
+ */
+ lhp = &info->mti_lh[MDT_LH_PARENT];
+ mdt_lock_reg_init(lhp, LCK_PW);
+
+ if (le32_to_cpu(lmu->lum_stripe_count) < 2) {
+ rc = mdt_reint_object_lock(info, pobj, lhp,
+ MDS_INODELOCK_UPDATE, true);
+ if (rc)
+ GOTO(put_pobj, rc);
+ }
+
+ /* lock object */
+ lhc = &info->mti_lh[MDT_LH_CHILD];
+ mdt_lock_reg_init(lhc, LCK_EX);
+ rc = mdt_reint_striped_lock(info, obj, lhc, MDS_INODELOCK_FULL, einfo,
+ true);
+ if (rc)
+ GOTO(unlock_pobj, rc);
+
+ ma->ma_lmv = info->mti_big_lmm;
+ ma->ma_lmv_size = info->mti_big_lmmsize;
+ ma->ma_valid = 0;
+ rc = mdt_stripe_get(info, obj, ma, XATTR_NAME_LMV);
+ if (rc)
+ GOTO(unlock_obj, rc);
+
+ /* user may run 'lfs migrate' multiple times, so it's shrunk already */
+ if (!(ma->ma_valid & MA_LMV))
+ GOTO(unlock_obj, rc = -EALREADY);
+
+ lmv = &ma->ma_lmv->lmv_md_v1;
+
+ /* ditto */
+ if (!(le32_to_cpu(lmv->lmv_hash_type) & LMV_HASH_FLAG_MIGRATION))
+ GOTO(unlock_obj, rc = -EALREADY);
+
+ lum_stripe_count = lmu->lum_stripe_count;
+ if (!lum_stripe_count)
+ lum_stripe_count = cpu_to_le32(1);
+
+ if (lmv->lmv_migrate_offset != lum_stripe_count) {
+ CERROR("%s: "DFID" migrate mdt count mismatch %u != %u\n",
+ mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
+ lmv->lmv_migrate_offset, lmu->lum_stripe_count);
+ GOTO(unlock_obj, rc = -EINVAL);
+ }
+
+ if (lmv->lmv_master_mdt_index != lmu->lum_stripe_offset) {
+ CERROR("%s: "DFID" migrate mdt index mismatch %u != %u\n",
+ mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
+ lmv->lmv_master_mdt_index, lmu->lum_stripe_offset);
+ GOTO(unlock_obj, rc = -EINVAL);
+ }
+
+ if (lum_stripe_count > 1 &&
+ (lmv->lmv_hash_type & cpu_to_le32(LMV_HASH_TYPE_MASK)) !=
+ lmu->lum_hash_type) {
+ CERROR("%s: "DFID" migrate mdt hash mismatch %u != %u\n",
+ mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
+ lmv->lmv_hash_type, lmu->lum_hash_type);
+ GOTO(unlock_obj, rc = -EINVAL);
+ }
+
+ buf->lb_buf = rr->rr_eadata;
+ buf->lb_len = rr->rr_eadatalen;
+ rc = mo_xattr_set(env, mdt_object_child(obj), buf, XATTR_NAME_LMV, 0);
+ GOTO(unlock_obj, rc);
+
+unlock_obj:
+ mdt_reint_striped_unlock(info, obj, lhc, einfo, rc);
+unlock_pobj:
+ mdt_object_unlock(info, pobj, lhp, rc);
+put_pobj:
+ mdt_object_put(env, pobj);
+put_obj:
+ mdt_object_put(env, obj);
+
+ return rc;
}
int mdt_reint_setxattr(struct mdt_thread_info *info,
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 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 lu_attr *attr = &info->mti_attr.ma_attr;
- struct mdt_object *obj;
- struct md_object *child;
- __u64 valid = attr->la_valid;
- const char *xattr_name;
- int xattr_len = 0;
- __u64 lockpart;
- int rc;
- posix_acl_xattr_header *new_xattr = NULL;
- ENTRY;
-
- CDEBUG(D_INODE, "setxattr for "DFID"\n", PFID(rr->rr_fid1));
+ struct ptlrpc_request *req = mdt_info_req(info);
+ struct mdt_lock_handle *lh;
+ 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 md_object *child;
+ __u64 valid = attr->la_valid;
+ const char *xattr_name = rr->rr_name.ln_name;
+ int xattr_len = rr->rr_eadatalen;
+ __u64 lockpart = MDS_INODELOCK_UPDATE;
+ int rc;
+ ENTRY;
+
+ CDEBUG(D_INODE, "setxattr for "DFID": %s %s\n", PFID(rr->rr_fid1),
+ valid & OBD_MD_FLXATTR ? "set" : "remove", xattr_name);
+
+ if (info->mti_dlm_req)
+ ldlm_request_cancel(req, info->mti_dlm_req, 0, LATF_SKIP);
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);
-
- LASSERT(med->med_rmtclient);
- 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)
- 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);
- }
-
- lockpart = MDS_INODELOCK_UPDATE;
+ if (strncmp(xattr_name, XATTR_USER_PREFIX,
+ sizeof(XATTR_USER_PREFIX) - 1) == 0) {
+ if (!(exp_connect_flags(req->rq_export) & OBD_CONNECT_XATTR))
+ GOTO(out, rc = -EOPNOTSUPP);
+ } else if (strncmp(xattr_name, XATTR_TRUSTED_PREFIX,
+ sizeof(XATTR_TRUSTED_PREFIX) - 1) == 0) {
+
+ /* setxattr(LMV) with lum is used to shrink dir layout */
+ if (strcmp(xattr_name, XATTR_NAME_LMV) == 0) {
+ __u32 *magic = rr->rr_eadata;
+
+ /* we don't let to remove LMV? */
+ if (!rr->rr_eadata)
+ GOTO(out, rc = 0);
+
+ if (le32_to_cpu(*magic) == LMV_USER_MAGIC ||
+ le32_to_cpu(*magic) == LMV_USER_MAGIC_SPECIFIC) {
+ rc = mdt_dir_layout_shrink(info);
+ GOTO(out, rc);
+ }
+ }
+
+ if (!md_capable(mdt_ucred(info), CFS_CAP_SYS_ADMIN))
+ GOTO(out, rc = -EPERM);
+
+ if (strcmp(xattr_name, XATTR_NAME_LOV) == 0 ||
+ strcmp(xattr_name, XATTR_NAME_LMA) == 0 ||
+ strcmp(xattr_name, XATTR_NAME_LMV) == 0 ||
+ strcmp(xattr_name, XATTR_NAME_LINK) == 0 ||
+ strcmp(xattr_name, XATTR_NAME_FID) == 0 ||
+ strcmp(xattr_name, XATTR_NAME_VERSION) == 0 ||
+ strcmp(xattr_name, XATTR_NAME_SOM) == 0 ||
+ strcmp(xattr_name, XATTR_NAME_HSM) == 0 ||
+ strcmp(xattr_name, XATTR_NAME_LFSCK_NAMESPACE) == 0)
+ GOTO(out, rc = 0);
+ } else if ((valid & OBD_MD_FLXATTR) &&
+ (strcmp(xattr_name, XATTR_NAME_ACL_ACCESS) == 0 ||
+ strcmp(xattr_name, XATTR_NAME_ACL_DEFAULT) == 0)) {
+ rc = mdt_nodemap_map_acl(info, rr->rr_eadata, xattr_len,
+ xattr_name, NODEMAP_CLIENT_TO_FS);
+ if (rc < 0)
+ GOTO(out, rc);
+ /* ACLs were mapped out, return an error so the user knows */
+ if (rc != xattr_len)
+ GOTO(out, rc = -EPERM);
+ } else if ((strlen(xattr_name) > strlen(XATTR_LUSTRE_LOV) + 1) &&
+ strncmp(xattr_name, XATTR_LUSTRE_LOV,
+ strlen(XATTR_LUSTRE_LOV)) == 0) {
+
+ if (strncmp(xattr_name, XATTR_LUSTRE_LOV".add",
+ strlen(XATTR_LUSTRE_LOV".add")) &&
+ strncmp(xattr_name, XATTR_LUSTRE_LOV".set",
+ strlen(XATTR_LUSTRE_LOV".set")) &&
+ strncmp(xattr_name, XATTR_LUSTRE_LOV".del",
+ strlen(XATTR_LUSTRE_LOV".del"))) {
+ CERROR("%s: invalid xattr name: %s\n",
+ mdt_obd_name(info->mti_mdt), xattr_name);
+ GOTO(out, rc = -EINVAL);
+ }
+
+ lockpart |= MDS_INODELOCK_LAYOUT;
+ }
+
+ /* 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. */
+ /* We need revoke both LOOKUP|PERM lock here, see mdt_attr_set. */
if (!strcmp(xattr_name, XATTR_NAME_ACL_ACCESS))
- lockpart |= MDS_INODELOCK_LOOKUP;
+ lockpart |= MDS_INODELOCK_PERM | MDS_INODELOCK_LOOKUP;
+ /* We need to take the lock on behalf of old clients so that newer
+ * clients flush their xattr caches */
+ else
+ lockpart |= MDS_INODELOCK_XATTR;
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));
-
- if (unlikely(!(valid & OBD_MD_FLCTIME))) {
- CWARN("client miss to set OBD_MD_FLCTIME when "
- "setxattr: [object "DFID"] [valid %llu]\n",
- 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) {
- 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 (IS_ERR(obj))
+ GOTO(out, rc = PTR_ERR(obj));
+
+ tgt_vbr_obj_set(env, mdt_obj2dt(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 %llu]\n",
+ mdt_obd_name(info->mti_mdt), xattr_name,
+ PFID(rr->rr_fid1), valid);
+ attr->la_ctime = ktime_get_real_seconds();
+ }
+ attr->la_valid = LA_CTIME;
+ child = mdt_object_child(obj);
+ if (valid & OBD_MD_FLXATTR) {
+ int flags = 0;
+
+ if (attr->la_flags & XATTR_REPLACE)
+ flags |= LU_XATTR_REPLACE;
+
+ if (attr->la_flags & XATTR_CREATE)
+ flags |= LU_XATTR_CREATE;
+
+ mdt_fail_write(env, info->mti_mdt->mdt_bottom,
+ OBD_FAIL_MDS_SETXATTR_WRITE);
+
+ buf->lb_buf = rr->rr_eadata;
+ 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) {
+ 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: %#llx\n", valid);
+ rc = -EINVAL;
+ }
- xattr_len = req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT);
- if (xattr_len) {
- int flags = 0;
-
- xattr = req_capsule_client_get(pill, &RMF_EADATA);
-
- if (valid & OBD_MD_FLRMTLSETFACL) {
- LASSERT(med->med_rmtclient);
- xattr_len = mdt_rmtlsetfacl(info, child,
- xattr_name,
- (ext_acl_xattr_header *)xattr,
- &new_xattr);
- if (xattr_len < 0)
- GOTO(out_unlock, rc = xattr_len);
+ if (rc == 0)
+ mdt_counter_incr(req, LPROC_MDT_SETXATTR);
- xattr = (char *)new_xattr;
- }
-
- if (attr->la_flags & XATTR_REPLACE)
- flags |= LU_XATTR_REPLACE;
-
- if (attr->la_flags & XATTR_CREATE)
- flags |= LU_XATTR_CREATE;
-
- mdt_fail_write(env, info->mti_mdt->mdt_bottom,
- OBD_FAIL_MDS_SETXATTR_WRITE);
-
- buf->lb_buf = xattr;
- buf->lb_len = xattr_len;
- rc = mo_xattr_set(env, child, buf, xattr_name, flags, attr);
- }
- } else if (valid & OBD_MD_FLXATTRRM) {
- rc = mo_xattr_del(env, child, xattr_name, attr);
- } else {
- CDEBUG(D_INFO, "valid bits: "LPX64"\n", valid);
- rc = -EINVAL;
- }
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