* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/mm.h>
-#include <linux/smp_lock.h>
-#ifdef HAVE_SELINUX_IS_ENABLED
#include <linux/selinux.h>
-#endif
#define DEBUG_SUBSYSTEM S_LLITE
#include <lustre_lite.h>
#include <lustre_dlm.h>
#include <lustre_ver.h>
-#include <lustre_acl.h>
+#include <lustre_eacl.h>
#include "llite_internal.h"
!(sbi->ll_flags & LL_SBI_ACL))
return -EOPNOTSUPP;
- if (xattr_type == XATTR_SECURITY_T && !selinux_is_enabled())
- return -EOPNOTSUPP;
if (xattr_type == XATTR_USER_T && !(sbi->ll_flags & LL_SBI_USER_XATTR))
return -EOPNOTSUPP;
if (xattr_type == XATTR_TRUSTED_T && !cfs_capable(CFS_CAP_SYS_ADMIN))
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;
if (rc)
RETURN(rc);
+ if ((xattr_type == XATTR_ACL_ACCESS_T ||
+ xattr_type == XATTR_ACL_DEFAULT_T) &&
+#ifdef HAVE_INODE_OWNER_OR_CAPABLE
+ !inode_owner_or_capable(inode))
+#else
+ !is_owner_or_cap(inode))
+#endif
+ return -EPERM;
+
/* 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))
strcmp(name, "security.capability") == 0))
RETURN(0);
-#ifdef CONFIG_FS_POSIX_ACL
- if (sbi->ll_flags & LL_SBI_RMT_CLIENT &&
- (xattr_type == XATTR_ACL_ACCESS_T ||
- xattr_type == XATTR_ACL_DEFAULT_T)) {
- rce = rct_search(&sbi->ll_rct, cfs_curproc_pid());
- if (rce == NULL ||
- (rce->rce_ops != RMT_LSETFACL &&
- rce->rce_ops != RMT_RSETFACL))
- RETURN(-EOPNOTSUPP);
+ /* 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);
- if (rce->rce_ops == RMT_LSETFACL) {
- struct eacl_entry *ee;
-
- ee = et_search_del(&sbi->ll_et, cfs_curproc_pid(),
- ll_inode2fid(inode), xattr_type);
- LASSERT(ee != NULL);
+#ifdef CONFIG_FS_POSIX_ACL
+ if (sbi->ll_flags & LL_SBI_RMT_CLIENT &&
+ (xattr_type == XATTR_ACL_ACCESS_T ||
+ xattr_type == XATTR_ACL_DEFAULT_T)) {
+ rce = rct_search(&sbi->ll_rct, current_pid());
+ if (rce == NULL ||
+ (rce->rce_ops != RMT_LSETFACL &&
+ rce->rce_ops != RMT_RSETFACL))
+ RETURN(-EOPNOTSUPP);
+
+ if (rce->rce_ops == RMT_LSETFACL) {
+ struct eacl_entry *ee;
+
+ ee = et_search_del(&sbi->ll_et, current_pid(),
+ ll_inode2fid(inode), xattr_type);
+ LASSERT(ee != NULL);
if (valid & OBD_MD_FLXATTR) {
acl = lustre_acl_xattr_merge2ext(
(posix_acl_xattr_header *)value,
}
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);
+ 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);
LASSERT(inode);
LASSERT(name);
- CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n",
- inode->i_ino, inode->i_generation, inode, name);
+ CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), xattr %s\n",
+ PFID(ll_inode2fid(inode)), inode, name);
ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETXATTR, 1);
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;
- rc = ll_lov_setstripe_ea_info(inode, &f, flags,
- lump, sizeof(*lump));
- /* b10667: rc always be 0 here for now */
- rc = 0;
+ 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);
}
LASSERT(inode);
LASSERT(name);
- CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n",
- inode->i_ino, inode->i_generation, inode, name);
+ CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), xattr %s\n",
+ PFID(ll_inode2fid(inode)), inode, name);
ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_REMOVEXATTR, 1);
return ll_setxattr_common(inode, name, NULL, 0, 0,
void *xdata;
struct obd_capa *oc;
struct rmtacl_ctl_entry *rce = NULL;
+ struct ll_inode_info *lli = ll_i2info(inode);
ENTRY;
- CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
- inode->i_ino, inode->i_generation, inode);
+ CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n",
+ PFID(ll_inode2fid(inode)), inode);
/* listxattr have slightly different behavior from of ext3:
* without 'user_xattr' ext3 will list all xattr names but
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 ||
- xattr_type == XATTR_ACL_DEFAULT_T)) {
- rce = rct_search(&sbi->ll_rct, cfs_curproc_pid());
- if (rce == NULL ||
- (rce->rce_ops != RMT_LSETFACL &&
- rce->rce_ops != RMT_LGETFACL &&
- rce->rce_ops != RMT_RSETFACL &&
- rce->rce_ops != RMT_RGETFACL))
- RETURN(-EOPNOTSUPP);
- }
+ if (sbi->ll_flags & LL_SBI_RMT_CLIENT &&
+ (xattr_type == XATTR_ACL_ACCESS_T ||
+ xattr_type == XATTR_ACL_DEFAULT_T)) {
+ rce = rct_search(&sbi->ll_rct, current_pid());
+ if (rce == NULL ||
+ (rce->rce_ops != RMT_LSETFACL &&
+ rce->rce_ops != RMT_LGETFACL &&
+ rce->rce_ops != RMT_RSETFACL &&
+ rce->rce_ops != RMT_RGETFACL))
+ RETURN(-EOPNOTSUPP);
+ }
/* 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
*/
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;
- cfs_spin_lock(&lli->lli_lock);
- acl = posix_acl_dup(lli->lli_posix_acl);
- cfs_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 (sbi->ll_xattr_cache_enabled && xattr_type != XATTR_ACL_ACCESS_T) {
+ rc = ll_xattr_cache_get(inode, name, buffer, size, valid);
+ if (rc == -EAGAIN)
+ goto getxattr_nocache;
+ if (rc < 0)
+ GOTO(out_xattr, rc);
+
+ /* Add "system.posix_acl_access" to the list */
+ if (lli->lli_posix_acl != NULL && valid & OBD_MD_FLXATTRLS) {
+ if (size == 0) {
+ rc += sizeof(XATTR_NAME_ACL_ACCESS);
+ } else if (size - rc >= sizeof(XATTR_NAME_ACL_ACCESS)) {
+ memcpy(buffer + rc, XATTR_NAME_ACL_ACCESS,
+ sizeof(XATTR_NAME_ACL_ACCESS));
+ rc += sizeof(XATTR_NAME_ACL_ACCESS);
+ } else {
+ GOTO(out_xattr, rc = -ERANGE);
+ }
+ }
+ } else {
+getxattr_nocache:
+ 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 (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);
- 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);
- /* 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;
-
- acl = lustre_posix_acl_xattr_2ext((posix_acl_xattr_header *)xdata,
- body->eadatasize);
- if (IS_ERR(acl))
- GOTO(out, rc = PTR_ERR(acl));
-
- rc = ee_add(&sbi->ll_et, cfs_curproc_pid(), ll_inode2fid(inode),
- xattr_type, acl);
- if (unlikely(rc < 0)) {
- lustre_ext_acl_xattr_free(acl);
- GOTO(out, rc);
- }
- }
+ if (rce != NULL && rce->rce_ops == RMT_LSETFACL) {
+ ext_acl_xattr_header *acl;
+
+ acl = lustre_posix_acl_xattr_2ext(buffer, rc);
+ if (IS_ERR(acl))
+ GOTO(out, rc = PTR_ERR(acl));
+
+ rc = ee_add(&sbi->ll_et, current_pid(), ll_inode2fid(inode),
+ xattr_type, acl);
+ if (unlikely(rc < 0)) {
+ lustre_ext_acl_xattr_free(acl);
+ GOTO(out, rc);
+ }
+ }
#endif
-
- if (body->eadatasize == 0) {
- rc = -ENODATA;
- } else {
- 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;
LASSERT(inode);
LASSERT(name);
- CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n",
- inode->i_ino, inode->i_generation, inode, name);
+ CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), xattr %s\n",
+ PFID(ll_inode2fid(inode)), inode, name);
ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_GETXATTR, 1);
(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;
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));
- }
-
- if (!ll_i2info(inode)->lli_smd) {
- 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,
- ll_i2info(inode)->lli_smd);
- lmmsize = rc;
- }
+ lsm = ccc_inode_lsm_get(inode);
+ if (lsm == NULL) {
+ if (S_ISDIR(inode->i_mode)) {
+ rc = ll_dir_getstripe(inode, (void **)&lmm,
+ &lmmsize, &request, 0);
+ } 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);
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:
LASSERT(inode);
- CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
- inode->i_ino, inode->i_generation, inode);
+ CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n",
+ PFID(ll_inode2fid(inode)), inode);
ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_LISTXATTR, 1);
rc -= xlen;
}
}
- if (S_ISREG(inode->i_mode)) {
- if (ll_i2info(inode)->lli_smd == NULL)
- rc2 = -1;
- } else if (S_ISDIR(inode->i_mode)) {
- rc2 = ll_dir_getstripe(inode, &lmm, &lmmsize, &request);
- }
+ 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, (void **)&lmm, &lmmsize, &request,
+ 0);
+ }
if (rc2 < 0) {
GOTO(out, rc2 = 0);
const size_t name_len = sizeof("lov") - 1;
const size_t total_len = prefix_len + name_len + 1;
- if (buffer && (rc + total_len) <= size) {
+ 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);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff