-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (c) 2004 - 2005 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * 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 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 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 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.
+ * 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
*
- * 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.
+ * 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) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
+ */
+/*
+ * 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>
+#include <linux/selinux.h>
#define DEBUG_SUBSYSTEM S_LLITE
#include <lustre_lite.h>
#include <lustre_dlm.h>
#include <lustre_ver.h>
-//#include <lustre_mdc.h>
-#include <linux/lustre_acl.h>
+#include <lustre_eacl.h>
#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)
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;
static
int ll_setxattr_common(struct inode *inode, const char *name,
- const void *value, size_t size,
- int flags, __u64 valid)
+ const void *value, size_t size,
+ int flags, __u64 valid)
{
- struct ll_sb_info *sbi = ll_i2sbi(inode);
- struct ptlrpc_request *req;
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct ptlrpc_request *req = NULL;
int xattr_type, rc;
struct obd_capa *oc;
posix_acl_xattr_header *new_value = NULL;
(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);
+
+ /* LU-549: Disable security.selinux when selinux is disabled */
+ if (xattr_type == XATTR_SECURITY_T && !selinux_is_enabled() &&
+ strcmp(name, "security.selinux") == 0)
+ RETURN(-EOPNOTSUPP);
+
#ifdef CONFIG_FS_POSIX_ACL
if (sbi->ll_flags & LL_SBI_RMT_CLIENT &&
(xattr_type == XATTR_ACL_ACCESS_T ||
}
ee_free(ee);
} else if (rce->rce_ops == RMT_RSETFACL) {
- size = lustre_posix_acl_xattr_filter(
- (posix_acl_xattr_header *)value,
- size, &new_value);
- if (unlikely(size < 0))
- RETURN(size);
+ int acl_size = lustre_posix_acl_xattr_filter(
+ (posix_acl_xattr_header *)value,
+ size, &new_value);
+ if (unlikely(acl_size < 0))
+ RETURN(acl_size);
+ size = acl_size;
pv = (const char *)new_value;
} else
valid |= rce_ops2valid(rce->rce_ops);
}
#endif
- oc = ll_mdscapa_get(inode);
- rc = md_setxattr(sbi->ll_md_exp, ll_inode2fid(inode), oc,
- valid, name, pv, size, 0, flags, ll_i2suppgid(inode),
- &req);
- capa_put(oc);
+ if (sbi->ll_xattr_cache_enabled &&
+ (rce == NULL || rce->rce_ops == RMT_LSETFACL)) {
+ rc = ll_xattr_cache_update(inode, name, pv, size, valid, flags);
+ } else {
+ oc = ll_mdscapa_get(inode);
+ rc = md_setxattr(sbi->ll_md_exp, ll_inode2fid(inode), oc,
+ valid, name, pv, size, 0, flags,
+ ll_i2suppgid(inode), &req);
+ capa_put(oc);
+ }
+
#ifdef CONFIG_FS_POSIX_ACL
if (new_value != NULL)
lustre_posix_acl_xattr_free(new_value, size);
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);
ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETXATTR, 1);
- if ((strncmp(name, XATTR_TRUSTED_PREFIX,
+ 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,
+ (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;
- if (S_ISREG(inode->i_mode)) {
- struct file f;
- int flags = FMODE_WRITE;
-
- f.f_dentry = dentry;
- rc = ll_lov_setstripe_ea_info(inode, &f, flags,
- lump, sizeof(*lump));
- /* b10667: rc always be 0 here for now */
- 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;
+ __u64 it_flags = FMODE_WRITE;
+ int lum_size = (lump->lmm_magic == LOV_USER_MAGIC_V1) ?
+ sizeof(*lump) : sizeof(struct lov_user_md_v3);
+
+ f.f_dentry = dentry;
+ rc = ll_lov_setstripe_ea_info(inode, &f, it_flags, lump,
+ lum_size);
+ /* b10667: rc always be 0 here for now */
+ rc = 0;
} else if (S_ISDIR(inode->i_mode)) {
rc = ll_dir_setstripe(inode, lump, 0);
}
-
+
return rc;
- }
+
+ } else if (strcmp(name, XATTR_NAME_LMA) == 0 ||
+ strcmp(name, XATTR_NAME_LINK) == 0)
+ return 0;
return ll_setxattr_common(inode, name, value, size, flags,
OBD_MD_FLXATTR);
if (rc)
RETURN(rc);
+ /* b15587: ignore security.capability xattr for now */
+ if ((xattr_type == XATTR_SECURITY_T &&
+ strcmp(name, "security.capability") == 0))
+ RETURN(-ENODATA);
+
+ /* LU-549: Disable security.selinux when selinux is disabled */
+ if (xattr_type == XATTR_SECURITY_T && !selinux_is_enabled() &&
+ strcmp(name, "security.selinux") == 0)
+ RETURN(-EOPNOTSUPP);
+
#ifdef CONFIG_FS_POSIX_ACL
if (sbi->ll_flags & LL_SBI_RMT_CLIENT &&
(xattr_type == XATTR_ACL_ACCESS_T ||
rce->rce_ops != RMT_RGETFACL))
RETURN(-EOPNOTSUPP);
}
-#endif
/* 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 &&
!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) {
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);
+ 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);
+ rc = posix_acl_to_xattr(&init_user_ns, acl, buffer, size);
posix_acl_release(acl);
RETURN(rc);
}
#endif
do_getxattr:
- oc = ll_mdscapa_get(inode);
- rc = md_getxattr(sbi->ll_md_exp, ll_inode2fid(inode), oc,
- valid | (rce ? rce_ops2valid(rce->rce_ops) : 0),
- name, NULL, 0, size, 0, &req);
- capa_put(oc);
- 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");
- sbi->ll_flags &= ~LL_SBI_USER_XATTR;
- }
- RETURN(rc);
- }
-
- body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
- LASSERT(body);
-
- /* only detect the xattr size */
- if (size == 0)
- GOTO(out, rc = body->eadatasize);
-
- if (size < body->eadatasize) {
- CERROR("server bug: replied size %u > %u\n",
- body->eadatasize, (int)size);
- GOTO(out, rc = -ERANGE);
- }
-
- /* do not need swab xattr data */
- xdata = req_capsule_server_sized_get(&req->rq_pill, &RMF_EADATA,
- body->eadatasize);
- if (!xdata)
- GOTO(out, rc = -EFAULT);
+ if (sbi->ll_xattr_cache_enabled && (rce == NULL ||
+ rce->rce_ops == RMT_LGETFACL ||
+ rce->rce_ops == RMT_LSETFACL)) {
+ rc = ll_xattr_cache_get(inode, name, buffer, size, valid);
+ if (rc < 0)
+ GOTO(out_xattr, rc);
+ } else {
+ oc = ll_mdscapa_get(inode);
+ rc = md_getxattr(sbi->ll_md_exp, ll_inode2fid(inode), oc,
+ valid | (rce ? rce_ops2valid(rce->rce_ops) : 0),
+ name, NULL, 0, size, 0, &req);
+ capa_put(oc);
+
+ if (rc < 0)
+ GOTO(out_xattr, rc);
+
+ body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
+ LASSERT(body);
+
+ /* only detect the xattr size */
+ if (size == 0)
+ GOTO(out, rc = body->eadatasize);
+
+ if (size < body->eadatasize) {
+ CERROR("server bug: replied size %u > %u\n",
+ body->eadatasize, (int)size);
+ GOTO(out, rc = -ERANGE);
+ }
+
+ if (body->eadatasize == 0)
+ GOTO(out, rc = -ENODATA);
+
+ /* do not need swab xattr data */
+ xdata = req_capsule_server_sized_get(&req->rq_pill, &RMF_EADATA,
+ body->eadatasize);
+ if (!xdata)
+ GOTO(out, rc = -EFAULT);
+
+ memcpy(buffer, xdata, body->eadatasize);
+ rc = body->eadatasize;
+ }
#ifdef CONFIG_FS_POSIX_ACL
- if (body->eadatasize >= 0 && rce && rce->rce_ops == RMT_LSETFACL) {
- ext_acl_xattr_header *acl;
+ if (rce && rce->rce_ops == RMT_LSETFACL) {
+ ext_acl_xattr_header *acl;
- acl = lustre_posix_acl_xattr_2ext((posix_acl_xattr_header *)xdata,
- body->eadatasize);
+ acl = lustre_posix_acl_xattr_2ext((posix_acl_xattr_header *)buffer,
+ rc);
if (IS_ERR(acl))
GOTO(out, rc = PTR_ERR(acl));
GOTO(out, rc);
}
}
-
- if (xattr_type == XATTR_ACL_ACCESS_T && !body->eadatasize)
- GOTO(out, rc = -ENODATA);
#endif
- LASSERT(buffer);
- memcpy(buffer, xdata, body->eadatasize);
- rc = body->eadatasize;
- EXIT;
+ EXIT;
+
+out_xattr:
+ if (rc == -EOPNOTSUPP && xattr_type == XATTR_USER_T) {
+ LCONSOLE_INFO("%s: disabling user_xattr feature because "
+ "it is not supported on the server: rc = %d\n",
+ ll_get_fsname(inode->i_sb, NULL, 0), rc);
+ sbi->ll_flags &= ~LL_SBI_USER_XATTR;
+ }
out:
ptlrpc_req_finished(req);
return rc;
ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_GETXATTR, 1);
- if ((strncmp(name, XATTR_TRUSTED_PREFIX,
+ 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,
+ (strncmp(name, XATTR_LUSTRE_PREFIX,
sizeof(XATTR_LUSTRE_PREFIX) - 1) == 0 &&
strcmp(name + sizeof(XATTR_LUSTRE_PREFIX) - 1, "lov") == 0)) {
+ struct lov_stripe_md *lsm;
struct lov_user_md *lump;
struct lov_mds_md *lmm = NULL;
struct ptlrpc_request *request = NULL;
- int rc = 0, lmmsize;
+ 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);
+ if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode))
+ return -ENODATA;
+
+ if (size == 0 && S_ISDIR(inode->i_mode)) {
+ /* XXX directory EA is fix for now, optimize to save
+ * RPC transfer */
+ GOTO(out, rc = sizeof(struct lov_user_md));
}
+ lsm = ccc_inode_lsm_get(inode);
+ if (lsm == NULL) {
+ if (S_ISDIR(inode->i_mode)) {
+ rc = ll_dir_getstripe(inode, &lmm,
+ &lmmsize, &request);
+ } else {
+ rc = -ENODATA;
+ }
+ } else {
+ /* LSM is present already after lookup/getattr call.
+ * we need to grab layout lock once it is implemented */
+ rc = obd_packmd(ll_i2dtexp(inode), &lmm, lsm);
+ lmmsize = rc;
+ }
+ ccc_inode_lsm_put(inode, lsm);
+
if (rc < 0)
GOTO(out, rc);
- if (size == 0)
- GOTO(out, rc = lmmsize);
+
+ if (size == 0) {
+ /* used to call ll_get_max_mdsize() forward to get
+ * the maximum buffer size, while some apps (such as
+ * rsync 3.0.x) care much about the exact xattr value
+ * size */
+ rc = lmmsize;
+ GOTO(out, rc);
+ }
if (size < lmmsize) {
- CERROR("server bug: replied size %u > %u\n",
- lmmsize, (int)size);
+ 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);
+ /* do not return layout gen for getxattr otherwise it would
+ * confuse tar --xattr by recognizing layout gen as stripe
+ * offset when the file is restored. See LU-2809. */
+ lump->lmm_layout_gen = 0;
rc = lmmsize;
out:
- ptlrpc_req_finished(request);
+ if (request)
+ ptlrpc_req_finished(request);
+ else if (lmm)
+ obd_free_diskmd(ll_i2dtexp(inode), &lmm);
return(rc);
}
ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_LISTXATTR, 1);
rc = ll_getxattr_common(inode, NULL, buffer, size, OBD_MD_FLXATTRLS);
-
- 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;
+ if (rc < 0)
+ GOTO(out, rc);
+
+ if (buffer != NULL) {
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ char *xattr_name = buffer;
+ int xlen, rem = rc;
+
+ while (rem > 0) {
+ xlen = strnlen(xattr_name, rem - 1) + 1;
+ rem -= xlen;
+ if (xattr_type_filter(sbi,
+ get_xattr_type(xattr_name)) == 0) {
+ /* skip OK xattr type
+ * leave it in buffer
+ */
+ xattr_name += xlen;
+ continue;
+ }
+ /* move up remaining xattrs in buffer
+ * removing the xattr that is not OK
+ */
+ memmove(xattr_name, xattr_name + xlen, rem);
+ rc -= xlen;
+ }
+ }
+ if (S_ISREG(inode->i_mode)) {
+ if (!ll_i2info(inode)->lli_has_smd)
+ 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 {
+ } 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;
- }
+ if (((rc + total_len) > size) && (buffer != NULL)) {
+ ptlrpc_req_finished(request);
+ return -ERANGE;
+ }
+
+ if (buffer != NULL) {
+ 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