/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * linux/mdt/mdt_xattr.c
- * Lustre Metadata Target (mdt) extended attributes management.
+ * GPL HEADER START
*
- * 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>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * 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 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.
*
- * 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.
+ * 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).
*
- * 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.
+ * 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
*
- * 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.
+ * 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 2008 Sun Microsystems, Inc. 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_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
#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"
/* 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 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 (MDT_FAIL_CHECK(OBD_FAIL_MDS_GETXATTR_PACK))
+
+ 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);
-
- if (!strcmp(xattr_name, XATTR_NAME_LUSTRE_ACL))
- size = RMTACL_SIZE_MAX;
- else
- 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) {
+
+ 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 {
- CERROR("Valid bits: "LPX64"\n", info->mti_body->valid);
+ CDEBUG(D_INFO, "Valid bits: "LPX64"\n", info->mti_body->valid);
RETURN(-EINVAL);
}
if (size == -ENODATA)
size = 0;
else if (size != -EOPNOTSUPP) {
- CERROR("Error geting EA size: %d\n", size);
+ CDEBUG(D_INFO, "Error geting EA size: %d\n", size);
RETURN(size);
}
}
req_capsule_set_size(pill, &RMF_EADATA, RCL_SERVER,
min_t(int, size, info->mti_body->eadatasize));
- rc = req_capsule_pack(pill);
+ rc = req_capsule_server_pack(pill);
if (rc) {
LASSERT(rc < 0);
RETURN(rc);
RETURN(size);
}
-static int do_remote_getfacl(struct mdt_thread_info *info, struct lu_buf *buf)
-{
- struct ptlrpc_request *req = mdt_info_req(info);
- char *cmd;
- int rc;
- ENTRY;
-
- if (!buf->lb_buf || (buf->lb_len != RMTACL_SIZE_MAX))
- RETURN(-EINVAL);
-
- cmd = req_capsule_client_get(&info->mti_pill, &RMF_EADATA);
- if (!cmd) {
- CERROR("missing getfacl command!\n");
- RETURN(-EFAULT);
- }
-
- rc = mdt_rmtacl_upcall(info, cmd, buf);
- if (rc)
- CERROR("remote acl upcall failed: %d\n", rc);
-
- lustre_shrink_reply(req, REPLY_REC_OFF + 1, strlen(buf->lb_buf) + 1, 0);
- RETURN(rc ?: strlen(buf->lb_buf) + 1);
-}
-
int mdt_getxattr(struct mdt_thread_info *info)
{
- struct mdt_body *reqbody;
- struct mdt_body *repbody = NULL;
- struct md_object *next;
- struct lu_buf *buf;
+ struct ptlrpc_request *req = mdt_info_req(info);
+ struct mdt_export_data *med = mdt_req2med(req);
+ struct md_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;
CDEBUG(D_INODE, "getxattr "DFID"\n", PFID(&info->mti_body->fid1));
- reqbody = req_capsule_client_get(&info->mti_pill, &RMF_MDT_BODY);
+ reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
if (reqbody == NULL)
RETURN(err_serious(-EFAULT));
if (rc)
RETURN(err_serious(rc));
+ next = mdt_object_child(info->mti_object);
+
+ if (info->mti_body->valid & OBD_MD_FLRMTRGETFACL) {
+ if (unlikely(!remote))
+ GOTO(out, rc = err_serious(-EINVAL));
+
+ perm = mdt_identity_get_perm(uc->mu_identity, remote,
+ req->rq_peer.nid);
+ 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));
- repbody = req_capsule_server_get(&info->mti_pill, &RMF_MDT_BODY);
+ repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
LASSERT(repbody != NULL);
/* No need further getxattr. */
GOTO(out, rc = easize);
buf = &info->mti_buf;
- buf->lb_buf = req_capsule_server_get(&info->mti_pill, &RMF_EADATA);
+ buf->lb_buf = req_capsule_server_get(info->mti_pill, &RMF_EADATA);
buf->lb_len = easize;
- next = mdt_object_child(info->mti_object);
if (info->mti_body->valid & OBD_MD_FLXATTR) {
- char *xattr_name = req_capsule_client_get(&info->mti_pill,
+ 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);
- if (!strcmp(xattr_name, XATTR_NAME_LUSTRE_ACL))
- rc = do_remote_getfacl(info, buf);
- else
- rc = mo_xattr_get(info->mti_env, next, buf, xattr_name);
-
- if (rc < 0)
+ 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;
+
+ if (unlikely(!remote))
+ GOTO(out, rc = -EINVAL);
+
+ 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)
- CERROR("listxattr failed: %d\n", rc);
+ CDEBUG(D_INFO, "listxattr failed: %d\n", rc);
} else
LBUG();
return rc;
}
-/* return EADATA length to the caller. negative value means error */
-static int mdt_setxattr_pack_reply(struct mdt_thread_info * info)
-{
- struct req_capsule *pill = &info->mti_pill ;
- __u64 valid = info->mti_body->valid;
- int rc = 0, rc1;
-
- if ((valid & OBD_MD_FLXATTR) == OBD_MD_FLXATTR) {
- char *xattr_name;
-
- xattr_name = req_capsule_client_get(pill, &RMF_NAME);
- if (!xattr_name)
- return -EFAULT;
-
- if (!strcmp(xattr_name, XATTR_NAME_LUSTRE_ACL))
- rc = RMTACL_SIZE_MAX;
- }
-
- req_capsule_set_size(pill, &RMF_EADATA, RCL_SERVER, rc);
-
- rc1 = req_capsule_pack(pill);
-
- return rc = rc1 ? rc1 : rc;
-}
-
-static int do_remote_setfacl(struct mdt_thread_info *info)
+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)
{
- struct ptlrpc_request *req = mdt_info_req(info);
- struct lu_buf *buf = &info->mti_buf;
- char *cmd;
- int rc;
+ 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;
- cmd = req_capsule_client_get(&info->mti_pill, &RMF_EADATA);
- if (!cmd) {
- CERROR("missing setfacl command!\n");
- RETURN(-EFAULT);
- }
+ 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_buf = req_capsule_server_get(&info->mti_pill, &RMF_EADATA);
- LASSERT(buf->lb_buf);
- buf->lb_len = RMTACL_SIZE_MAX;
+ 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 = mdt_rmtacl_upcall(info, cmd, buf);
- if (rc)
- CERROR("remote acl upcall failed: %d\n", rc);
+ 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;
- lustre_shrink_reply(req, REPLY_REC_OFF, strlen(buf->lb_buf) + 1, 0);
- RETURN(rc);
+ 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;
}
-int mdt_setxattr(struct mdt_thread_info *info)
+int mdt_reint_setxattr(struct mdt_thread_info *info,
+ struct mdt_lock_handle *unused)
{
struct ptlrpc_request *req = mdt_info_req(info);
- struct mdt_body *reqbody;
- const char user_string[] = "user.";
- const char trust_string[] = "trusted.";
+ struct md_ucred *uc = mdt_ucred(info);
struct mdt_lock_handle *lh;
- struct req_capsule *pill = &info->mti_pill;
- struct mdt_object *obj = info->mti_object;
- struct mdt_body *body = (struct mdt_body *)info->mti_body;
+ struct req_capsule *pill = info->mti_pill;
const struct lu_env *env = info->mti_env;
- struct md_object *child = mdt_object_child(obj);
struct lu_buf *buf = &info->mti_buf;
- __u64 valid = body->valid;
- char *xattr_name;
- int xattr_len;
+ 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;
+ int xattr_len = 0;
__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 "DFID"\n", PFID(&body->fid1));
+ CDEBUG(D_INODE, "setxattr for "DFID"\n", PFID(rr->rr_fid1));
- if (MDT_FAIL_CHECK(OBD_FAIL_MDS_SETXATTR))
+ if (OBD_FAIL_CHECK(OBD_FAIL_MDS_SETXATTR))
RETURN(err_serious(-ENOMEM));
- reqbody = req_capsule_client_get(pill, &RMF_MDT_BODY);
- if (reqbody == NULL)
- RETURN(err_serious(-EFAULT));
+ xattr_name = rr->rr_name;
- rc = mdt_init_ucred(info, reqbody);
- if (rc)
- RETURN(err_serious(rc));
+ CDEBUG(D_INODE, "%s xattr %s\n",
+ valid & OBD_MD_FLXATTR ? "set" : "remove", xattr_name);
+
+ rc = mdt_init_ucred_reint(info);
+ if (rc != 0)
+ RETURN(rc);
+
+ if (valid & OBD_MD_FLRMTRSETFACL) {
+ if (unlikely(!remote))
+ GOTO(out, rc = err_serious(-EINVAL));
- rc = mdt_setxattr_pack_reply(info);
- if (rc < 0)
- GOTO(out, rc = err_serious(rc));
+ perm = mdt_identity_get_perm(uc->mu_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));
- CDEBUG(D_INODE, "%s xattr %s\n",
- body->valid & OBD_MD_FLXATTR ? "set" : "remove", xattr_name);
-
- if (((valid & OBD_MD_FLXATTR) == OBD_MD_FLXATTR) &&
- (!strcmp(xattr_name, XATTR_NAME_LUSTRE_ACL))) {
- rc = do_remote_setfacl(info);
- GOTO(out, rc);
- }
-
- 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 (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)) {
+ /* currently lustre limit acl access size */
+ xattr_len = req_capsule_get_size(pill, &RMF_EADATA, RCL_CLIENT);
- 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 (xattr_len > LUSTRE_POSIX_ACL_MAX_SIZE)
+ GOTO(out, -ERANGE);
}
lockpart = MDS_INODELOCK_UPDATE;
lh = &info->mti_lh[MDT_LH_PARENT];
mdt_lock_reg_init(lh, LCK_PW);
- rc = mdt_object_lock(info, obj, lh, lockpart, MDT_LOCAL_LOCK);
- if (rc != 0)
- GOTO(out, rc);
+ obj = mdt_object_find_lock(info, rr->rr_fid1, lh, lockpart);
+ if (IS_ERR(obj))
+ GOTO(out, rc = PTR_ERR(obj));
+
+ info->mti_mos[0] = obj;
+ rc = mdt_version_get_check(info, 0);
+ if (rc)
+ GOTO(out_unlock, rc);
- if ((valid & OBD_MD_FLXATTR) == OBD_MD_FLXATTR) {
+ if (unlikely(!(valid & OBD_MD_FLCTIME))) {
+ CWARN("client miss to set OBD_MD_FLCTIME when "
+ "setxattr: [object "DFID"] [valid "LPU64"]\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)) {
- CERROR("no xattr data supplied\n");
+ CDEBUG(D_INFO, "no xattr data supplied\n");
GOTO(out_unlock, rc = -EFAULT);
}
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 (body->flags & XATTR_REPLACE)
+ if (valid & OBD_MD_FLRMTLSETFACL) {
+ if (unlikely(!remote))
+ GOTO(out_unlock, rc = -EINVAL);
+
+ 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);
+
+ xattr = (char *)new_xattr;
+ }
+
+ if (attr->la_flags & XATTR_REPLACE)
flags |= LU_XATTR_REPLACE;
- if (body->flags & XATTR_CREATE)
+ if (attr->la_flags & XATTR_CREATE)
flags |= LU_XATTR_CREATE;
mdt_fail_write(env, info->mti_mdt->mdt_bottom,
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 {
- CERROR("valid bits: "LPX64"\n", body->valid);
+ CDEBUG(D_INFO, "valid bits: "LPX64"\n", valid);
rc = -EINVAL;
}
EXIT;
out_unlock:
- mdt_object_unlock(info, obj, lh, rc);
+ 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;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff