/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (c) 2004 - 2005 Cluster File Systems, Inc.
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * 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 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 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.
+ * 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 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.
+ * 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
+ *
+ * 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) 2005, 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.
*/
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/smp_lock.h>
-#ifdef HAVE_LINUX_XATTR_ACL_H
-#include <linux/xattr_acl.h>
-#else
-#define XATTR_NAME_ACL_ACCESS "system.posix_acl_access"
-#define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default"
-#endif
#define DEBUG_SUBSYSTEM S_LLITE
-#include <linux/obd_support.h>
-#include <linux/lustre_lite.h>
-#include <linux/lustre_dlm.h>
+#include <obd_support.h>
+#include <lustre_lite.h>
+#include <lustre_dlm.h>
#include <linux/lustre_version.h>
-#include <linux/lustre_mdc.h>
+
+#ifndef POSIX_ACL_XATTR_ACCESS
+#ifndef XATTR_NAME_ACL_ACCESS
+#define XATTR_NAME_ACL_ACCESS "system.posix_acl_access"
+#endif
+#define POSIX_ACL_XATTR_ACCESS XATTR_NAME_ACL_ACCESS
+#endif
+#ifndef POSIX_ACL_XATTR_DEFAULT
+#ifndef XATTR_NAME_ACL_DEFAULT
+#define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default"
+#endif
+#define POSIX_ACL_XATTR_DEFAULT XATTR_NAME_ACL_DEFAULT
+#endif
#include "llite_internal.h"
#define XATTR_USER_PREFIX "user."
#define XATTR_TRUSTED_PREFIX "trusted."
#define XATTR_SECURITY_PREFIX "security."
+#define XATTR_LUSTRE_PREFIX "lustre."
#define XATTR_USER_T (1)
#define XATTR_TRUSTED_T (2)
#define XATTR_SECURITY_T (3)
-#define XATTR_ACL_T (4)
-#define XATTR_OTHER_T (5)
+#define XATTR_ACL_ACCESS_T (4)
+#define XATTR_ACL_DEFAULT_T (5)
+#define XATTR_LUSTRE_T (6)
+#define XATTR_OTHER_T (7)
static
int get_xattr_type(const char *name)
{
- if (!strcmp(name, XATTR_NAME_ACL_ACCESS) ||
- !strcmp(name, XATTR_NAME_ACL_DEFAULT))
- return XATTR_ACL_T;
+ if (!strcmp(name, POSIX_ACL_XATTR_ACCESS))
+ return XATTR_ACL_ACCESS_T;
+
+ if (!strcmp(name, POSIX_ACL_XATTR_DEFAULT))
+ return XATTR_ACL_DEFAULT_T;
if (!strncmp(name, XATTR_USER_PREFIX,
sizeof(XATTR_USER_PREFIX) - 1))
sizeof(XATTR_SECURITY_PREFIX) - 1))
return XATTR_SECURITY_T;
+ if (!strncmp(name, XATTR_LUSTRE_PREFIX,
+ sizeof(XATTR_LUSTRE_PREFIX) - 1))
+ return XATTR_LUSTRE_T;
+
return XATTR_OTHER_T;
}
static
int xattr_type_filter(struct ll_sb_info *sbi, int xattr_type)
{
- if (xattr_type == XATTR_ACL_T && !(sbi->ll_flags & LL_SBI_ACL))
+ if ((xattr_type == XATTR_ACL_ACCESS_T ||
+ xattr_type == XATTR_ACL_DEFAULT_T) &&
+ !(sbi->ll_flags & LL_SBI_ACL))
return -EOPNOTSUPP;
+
if (xattr_type == XATTR_USER_T && !(sbi->ll_flags & LL_SBI_USER_XATTR))
return -EOPNOTSUPP;
- if (xattr_type == XATTR_TRUSTED_T && !capable(CAP_SYS_ADMIN))
+ if (xattr_type == XATTR_TRUSTED_T && !cfs_capable(CFS_CAP_SYS_ADMIN))
return -EPERM;
if (xattr_type == XATTR_OTHER_T)
return -EOPNOTSUPP;
{
struct ll_sb_info *sbi = ll_i2sbi(inode);
struct ptlrpc_request *req;
+ struct ll_fid fid;
int xattr_type, rc;
ENTRY;
- lprocfs_counter_incr(sbi->ll_stats, LPROC_LL_SETXATTR);
xattr_type = get_xattr_type(name);
rc = xattr_type_filter(sbi, xattr_type);
if (rc)
RETURN(rc);
- rc = md_setxattr(sbi->ll_md_exp, ll_inode2fid(inode), valid,
- name, value, size, 0, flags, &req);
+ /* b10667: ignore lustre special xattr for now */
+ if ((xattr_type == XATTR_TRUSTED_T && strcmp(name, "trusted.lov") == 0) ||
+ (xattr_type == XATTR_LUSTRE_T && strcmp(name, "lustre.lov") == 0))
+ RETURN(0);
+
+ /* b15587: ignore security.capability xattr for now */
+ if ((xattr_type == XATTR_SECURITY_T &&
+ strcmp(name, "security.capability") == 0))
+ RETURN(0);
+
+ ll_inode2fid(&fid, inode);
+ rc = mdc_setxattr(sbi->ll_mdc_exp, &fid, valid,
+ name, value, size, 0, flags, &req);
if (rc) {
if (rc == -EOPNOTSUPP && xattr_type == XATTR_USER_T) {
LCONSOLE_INFO("Disabling user_xattr feature because "
- "it is not supported on the server\n");
+ "it is not supported on the server\n");
sbi->ll_flags &= ~LL_SBI_USER_XATTR;
}
RETURN(rc);
CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n",
inode->i_ino, inode->i_generation, inode, name);
+ ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETXATTR, 1);
+
+ if ((strncmp(name, XATTR_TRUSTED_PREFIX,
+ sizeof(XATTR_TRUSTED_PREFIX) - 1) == 0 &&
+ strcmp(name + sizeof(XATTR_TRUSTED_PREFIX) - 1, "lov") == 0) ||
+ (strncmp(name, XATTR_LUSTRE_PREFIX,
+ sizeof(XATTR_LUSTRE_PREFIX) - 1) == 0 &&
+ strcmp(name + sizeof(XATTR_LUSTRE_PREFIX) - 1, "lov") == 0)) {
+ struct lov_user_md *lump = (struct lov_user_md *)value;
+ int rc = 0;
+
+ /* Attributes that are saved via getxattr will always have
+ * the stripe_offset as 0. Instead, the MDS should be
+ * allowed to pick the starting OST index. b=17846 */
+ if (lump != NULL && lump->lmm_stripe_offset == 0)
+ lump->lmm_stripe_offset = -1;
+
+ if (lump != NULL && S_ISREG(inode->i_mode)) {
+ struct file f;
+ int flags = FMODE_WRITE;
+
+ f.f_dentry = dentry;
+ ll_lov_setstripe_ea_info(inode, &f, flags, lump, size);
+ /* b10667: rc always be 0 here for now */
+ } else if (S_ISDIR(inode->i_mode)) {
+ rc = ll_dir_setstripe(inode, lump, 0);
+ }
+
+ return rc;
+ } else if (strcmp(name, "trusted.lma") == 0 &&
+ !OBD_FAIL_CHECK(OBD_FAIL_MDS_ALLOW_COMMON_EA_SETTING))
+ return 0;
+
+
return ll_setxattr_common(inode, name, value, size, flags,
OBD_MD_FLXATTR);
}
CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n",
inode->i_ino, inode->i_generation, inode, name);
+ ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_REMOVEXATTR, 1);
return ll_setxattr_common(inode, name, NULL, 0, 0,
OBD_MD_FLXATTRRM);
}
{
struct ll_sb_info *sbi = ll_i2sbi(inode);
struct ptlrpc_request *req = NULL;
- struct mdt_body *body;
- int xattr_type, rc;
+ struct mds_body *body;
+ struct ll_fid fid;
void *xdata;
+ int xattr_type, rc;
ENTRY;
CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
inode->i_ino, inode->i_generation, inode);
- lprocfs_counter_incr(sbi->ll_stats, LPROC_LL_GETXATTR);
/* listxattr have slightly different behavior from of ext3:
* without 'user_xattr' ext3 will list all xattr names but
if (rc)
RETURN(rc);
+ /* b15587: ignore security.capability xattr for now */
+ if ((xattr_type == XATTR_SECURITY_T &&
+ strcmp(name, "security.capability") == 0))
+ RETURN(-ENODATA);
+
+ /* posix acl is under protection of LOOKUP lock. when calling to this,
+ * we just have path resolution to the target inode, so we have great
+ * chance that cached ACL is uptodate.
+ */
+#ifdef CONFIG_FS_POSIX_ACL
+ if (xattr_type == XATTR_ACL_ACCESS_T) {
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct posix_acl *acl;
+
+ spin_lock(&lli->lli_lock);
+ acl = posix_acl_dup(lli->lli_posix_acl);
+ spin_unlock(&lli->lli_lock);
+
+ if (!acl)
+ RETURN(-ENODATA);
+
+ rc = posix_acl_to_xattr(acl, buffer, size);
+ posix_acl_release(acl);
+ RETURN(rc);
+ }
+ if (xattr_type == XATTR_ACL_DEFAULT_T && !S_ISDIR(inode->i_mode))
+ RETURN(-ENODATA);
+#endif
+
do_getxattr:
- rc = md_getxattr(sbi->ll_md_exp, ll_inode2fid(inode), valid,
- name, NULL, 0, size, 0, &req);
+ ll_inode2fid(&fid, inode);
+ rc = mdc_getxattr(sbi->ll_mdc_exp, &fid, valid, name, NULL, 0, size,
+ &req);
if (rc) {
if (rc == -EOPNOTSUPP && xattr_type == XATTR_USER_T) {
LCONSOLE_INFO("Disabling user_xattr feature because "
- "it is not supported on the server\n");
+ "it is not supported on the server\n");
sbi->ll_flags &= ~LL_SBI_USER_XATTR;
}
RETURN(rc);
}
- body = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*body));
+ body = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF, sizeof(*body));
LASSERT(body);
- LASSERT_REPSWABBED(req, 0);
+ LASSERT(lustre_rep_swabbed(req, REPLY_REC_OFF));
/* only detect the xattr size */
if (size == 0)
GOTO(out, rc = -ERANGE);
}
- if (req->rq_repmsg->bufcount < 2) {
- CERROR("reply bufcount %u\n", req->rq_repmsg->bufcount);
+ if (lustre_msg_bufcount(req->rq_repmsg) < 3) {
+ CERROR("reply bufcount %u\n",
+ lustre_msg_bufcount(req->rq_repmsg));
GOTO(out, rc = -EFAULT);
}
/* do not need swab xattr data */
- LASSERT_REPSWAB(req, 1);
- xdata = lustre_msg_buf(req->rq_repmsg, 1, body->eadatasize);
+ lustre_set_rep_swabbed(req, REPLY_REC_OFF + 1);
+ xdata = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF + 1,
+ body->eadatasize);
if (!xdata) {
CERROR("can't extract: %u : %u\n", body->eadatasize,
- lustre_msg_buflen(req->rq_repmsg, 1));
+ lustre_msg_buflen(req->rq_repmsg, REPLY_REC_OFF + 1));
GOTO(out, rc = -EFAULT);
}
CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n",
inode->i_ino, inode->i_generation, inode, name);
+ ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_GETXATTR, 1);
+
+ if ((strncmp(name, XATTR_TRUSTED_PREFIX,
+ sizeof(XATTR_TRUSTED_PREFIX) - 1) == 0 &&
+ strcmp(name + sizeof(XATTR_TRUSTED_PREFIX) - 1, "lov") == 0) ||
+ (strncmp(name, XATTR_LUSTRE_PREFIX,
+ sizeof(XATTR_LUSTRE_PREFIX) - 1) == 0 &&
+ strcmp(name + sizeof(XATTR_LUSTRE_PREFIX) - 1, "lov") == 0)) {
+ struct lov_user_md *lump;
+ struct lov_mds_md *lmm = NULL;
+ struct ptlrpc_request *request = NULL;
+ int rc = 0, lmmsize = 0;
+
+ if (S_ISREG(inode->i_mode)) {
+ rc = ll_lov_getstripe_ea_info(dentry->d_parent->d_inode,
+ dentry->d_name.name, &lmm,
+ &lmmsize, &request);
+ } else if (S_ISDIR(inode->i_mode)) {
+ rc = ll_dir_getstripe(inode, &lmm, &lmmsize, &request);
+ } else {
+ rc = -ENODATA;
+ }
+
+ if (rc < 0)
+ GOTO(out, rc);
+ if (size == 0)
+ GOTO(out, rc = lmmsize);
+
+ if (size < lmmsize) {
+ CERROR("server bug: replied size %d > %d for %s (%s)\n",
+ lmmsize, (int)size, dentry->d_name.name, name);
+ GOTO(out, rc = -ERANGE);
+ }
+
+ lump = (struct lov_user_md *)buffer;
+ memcpy(lump, lmm, lmmsize);
+
+ rc = lmmsize;
+out:
+ ptlrpc_req_finished(request);
+ return(rc);
+ }
+
return ll_getxattr_common(inode, name, buffer, size, OBD_MD_FLXATTR);
}
ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size)
{
struct inode *inode = dentry->d_inode;
+ int rc = 0, rc2 = 0;
+ struct lov_mds_md *lmm = NULL;
+ struct ptlrpc_request *request = NULL;
+ int lmmsize;
LASSERT(inode);
CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
inode->i_ino, inode->i_generation, inode);
- return ll_getxattr_common(inode, NULL, buffer, size, OBD_MD_FLXATTRLS);
-}
+ ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_LISTXATTR, 1);
+
+ rc = ll_getxattr_common(inode, NULL, buffer, size, OBD_MD_FLXATTRLS);
+ if (rc < 0)
+ GOTO(out, rc);
+ if (S_ISREG(inode->i_mode)) {
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct lov_stripe_md *lsm = NULL;
+ lsm = lli->lli_smd;
+ if (lsm == NULL)
+ rc2 = -1;
+ } else if (S_ISDIR(inode->i_mode)) {
+ rc2 = ll_dir_getstripe(inode, &lmm, &lmmsize, &request);
+ }
+
+ if (rc2 < 0) {
+ GOTO(out, rc2 = 0);
+ } else if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)) {
+ const int prefix_len = sizeof(XATTR_LUSTRE_PREFIX) - 1;
+ const size_t name_len = sizeof("lov") - 1;
+ const size_t total_len = prefix_len + name_len + 1;
+
+ if (buffer && (rc + total_len) <= size) {
+ buffer += rc;
+ memcpy(buffer,XATTR_LUSTRE_PREFIX, prefix_len);
+ memcpy(buffer+prefix_len, "lov", name_len);
+ buffer[prefix_len + name_len] = '\0';
+ }
+ rc2 = total_len;
+ }
+out:
+ ptlrpc_req_finished(request);
+ rc = rc + rc2;
+
+ return rc;
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff