int jfs_acl_chmod(struct inode *inode)
{
struct posix_acl *acl, *clone;
int rc;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
acl = jfs_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
clone = posix_acl_clone(acl, GFP_KERNEL);
posix_acl_release(acl);
if (!clone)
return -ENOMEM;
rc = posix_acl_chmod_masq(clone, inode->i_mode);
if (!rc) {
tid_t tid = txBegin(inode->i_sb, 0);
mutex_lock(&JFS_IP(inode)->commit_mutex);
rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, clone);
if (!rc)
rc = txCommit(tid, 1, &inode, 0);
txEnd(tid);
mutex_unlock(&JFS_IP(inode)->commit_mutex);
}
posix_acl_release(clone);
return rc;
}
int ocfs2_acl_chmod(struct inode *inode)
{
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct posix_acl *acl, *clone;
int ret;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
return 0;
acl = ocfs2_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
clone = posix_acl_clone(acl, GFP_KERNEL);
posix_acl_release(acl);
if (!clone)
return -ENOMEM;
ret = posix_acl_chmod_masq(clone, inode->i_mode);
if (!ret)
ret = ocfs2_set_acl(NULL, inode, NULL, ACL_TYPE_ACCESS,
clone, NULL, NULL);
posix_acl_release(clone);
return ret;
}
int
xfs_acl_chmod(struct inode *inode)
{
struct posix_acl *acl, *clone;
int error;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
acl = xfs_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
clone = posix_acl_clone(acl, GFP_KERNEL);
posix_acl_release(acl);
if (!clone)
return -ENOMEM;
error = posix_acl_chmod_masq(clone, inode->i_mode);
if (!error)
error = xfs_set_acl(inode, ACL_TYPE_ACCESS, clone);
posix_acl_release(clone);
return error;
}
int btrfs_acl_chmod(struct inode *inode)
{
struct posix_acl *acl, *clone;
int ret = 0;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
if (!IS_POSIXACL(inode))
return 0;
acl = btrfs_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
clone = posix_acl_clone(acl, GFP_KERNEL);
posix_acl_release(acl);
if (!clone)
return -ENOMEM;
ret = posix_acl_chmod_masq(clone, inode->i_mode);
if (!ret)
ret = btrfs_set_acl(NULL, inode, clone, ACL_TYPE_ACCESS);
posix_acl_release(clone);
return ret;
}
int f2fs_acl_chmod(struct inode *inode)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct posix_acl *acl, *clone;
int error;
mode_t mode = get_inode_mode(inode);
if (!test_opt(sbi, POSIX_ACL))
return 0;
if (S_ISLNK(mode))
return -EOPNOTSUPP;
acl = f2fs_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
//error = posix_acl_chmod(&acl, GFP_KERNEL, mode);
clone = posix_acl_clone(acl, GFP_KERNEL);
posix_acl_release(acl);
if (!clone)
return -ENOMEM;
error = posix_acl_chmod_masq(clone, inode->i_mode);
if (error)
return error;
error = f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl);
posix_acl_release(acl);
return error;
}
/*
* Handles the case when a chmod is done for an inode that may have an
* access control list.
* The inode->i_mode field is updated to the desired value by the caller
* before calling this function which returns 0 on success and a -ve
* number on failure.
*/
int pvfs2_acl_chmod(struct inode *inode)
{
struct posix_acl *acl, *clone;
int error;
if (get_acl_flag(inode) == 0)
{
gossip_debug(GOSSIP_ACL_DEBUG, "pvfs2_acl_chmod: ACL options "
"disabled on this FS!\n");
return 0;
}
if (S_ISLNK(inode->i_mode))
{
gossip_err("pvfs2_acl_chmod: operation not permitted on symlink!\n");
error = -EACCES;
goto out;
}
acl = pvfs2_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl))
{
error = PTR_ERR(acl);
gossip_err("pvfs2_acl_chmod: get acl (access) failed with %d\n", error);
goto out;
}
if(!acl)
{
error = 0;
goto out;
}
clone = posix_acl_clone(acl, GFP_KERNEL);
posix_acl_release(acl);
if (!clone)
{
gossip_err("pvfs2_acl_chmod failed with ENOMEM\n");
error = -ENOMEM;
goto out;
}
error = posix_acl_chmod_masq(clone, inode->i_mode);
if (!error)
{
error = pvfs2_set_acl(inode, ACL_TYPE_ACCESS, clone);
gossip_debug(GOSSIP_ACL_DEBUG, "pvfs2_acl_chmod: pvfs2 set acl "
"(access) returned %d\n", error);
}
posix_acl_release(clone);
out:
return error;
}
int reiserfs_acl_chmod(struct inode *inode)
{
struct posix_acl *acl, *clone;
int error;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
if (get_inode_sd_version(inode) == STAT_DATA_V1 ||
!reiserfs_posixacl(inode->i_sb)) {
return 0;
}
reiserfs_write_unlock(inode->i_sb);
acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS);
reiserfs_write_lock(inode->i_sb);
if (!acl)
return 0;
if (IS_ERR(acl))
return PTR_ERR(acl);
clone = posix_acl_clone(acl, GFP_NOFS);
posix_acl_release(acl);
if (!clone)
return -ENOMEM;
error = posix_acl_chmod_masq(clone, inode->i_mode);
if (!error) {
struct reiserfs_transaction_handle th;
size_t size = reiserfs_xattr_nblocks(inode,
reiserfs_acl_size(clone->a_count));
int depth;
depth = reiserfs_write_lock_once(inode->i_sb);
error = journal_begin(&th, inode->i_sb, size * 2);
if (!error) {
int error2;
error = reiserfs_set_acl(&th, inode, ACL_TYPE_ACCESS,
clone);
error2 = journal_end(&th, inode->i_sb, size * 2);
if (error2)
error = error2;
}
reiserfs_write_unlock_once(inode->i_sb, depth);
}
posix_acl_release(clone);
return error;
}
int
reiserfs_acl_chmod (struct inode *inode)
{
struct posix_acl *acl, *clone;
int error;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
if (get_inode_sd_version (inode) == STAT_DATA_V1 ||
!reiserfs_posixacl(inode->i_sb))
{
return 0;
}
reiserfs_read_lock_xattrs (inode->i_sb);
acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS);
reiserfs_read_unlock_xattrs (inode->i_sb);
if (!acl)
return 0;
if (IS_ERR(acl))
return PTR_ERR(acl);
clone = posix_acl_clone(acl, GFP_NOFS);
posix_acl_release(acl);
if (!clone)
return -ENOMEM;
error = posix_acl_chmod_masq(clone, inode->i_mode);
if (!error) {
int lock = !has_xattr_dir (inode);
reiserfs_write_lock_xattr_i (inode);
if (lock)
reiserfs_write_lock_xattrs (inode->i_sb);
else
reiserfs_read_lock_xattrs (inode->i_sb);
error = reiserfs_set_acl(inode, ACL_TYPE_ACCESS, clone);
if (lock)
reiserfs_write_unlock_xattrs (inode->i_sb);
else
reiserfs_read_unlock_xattrs (inode->i_sb);
reiserfs_write_unlock_xattr_i (inode);
}
posix_acl_release(clone);
return error;
}
int jffs2_acl_chmod(struct inode *inode)
{
struct posix_acl *acl, *clone;
int rc;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
acl = jffs2_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
clone = posix_acl_clone(acl, GFP_KERNEL);
posix_acl_release(acl);
if (!clone)
return -ENOMEM;
rc = posix_acl_chmod_masq(clone, inode->i_mode);
if (!rc)
rc = jffs2_set_acl(inode, ACL_TYPE_ACCESS, clone);
posix_acl_release(clone);
return rc;
}
/**
* generic_acl_chmod - change the access acl of @inode upon chmod()
* @ops: FIlesystem specific getacl and setacl callbacks
*
* A chmod also changes the permissions of the owner, group/mask, and
* other ACL entries.
*/
int
generic_acl_chmod(struct inode *inode, struct generic_acl_operations *ops)
{
struct posix_acl *acl, *clone;
int error = 0;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
acl = ops->getacl(inode, ACL_TYPE_ACCESS);
if (acl) {
clone = posix_acl_clone(acl, GFP_KERNEL);
posix_acl_release(acl);
if (!clone)
return -ENOMEM;
error = posix_acl_chmod_masq(clone, inode->i_mode);
if (!error)
ops->setacl(inode, ACL_TYPE_ACCESS, clone);
posix_acl_release(clone);
}
return error;
}
/*
* Does chmod for an inode that may have an Access Control List. The
* inode->i_mode field must be updated to the desired value by the caller
* before calling this function.
* Returns 0 on success, or a negative error number.
*
* We change the ACL rather than storing some ACL entries in the file
* mode permission bits (which would be more efficient), because that
* would break once additional permissions (like ACL_APPEND, ACL_DELETE
* for directories) are added. There are no more bits available in the
* file mode.
*
* inode->i_mutex: down
*/
int
ext3_acl_chmod(struct inode *inode)
{
struct posix_acl *acl, *clone;
int error;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
if (!test_opt(inode->i_sb, POSIX_ACL))
return 0;
acl = ext3_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
clone = posix_acl_clone(acl, GFP_KERNEL);
posix_acl_release(acl);
if (!clone)
return -ENOMEM;
error = posix_acl_chmod_masq(clone, inode->i_mode);
if (!error) {
handle_t *handle;
int retries = 0;
retry:
handle = ext3_journal_start(inode,
EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
ext3_std_error(inode->i_sb, error);
goto out;
}
error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
ext3_journal_stop(handle);
if (error == -ENOSPC &&
ext3_should_retry_alloc(inode->i_sb, &retries))
goto retry;
}
out:
posix_acl_release(clone);
return error;
}
/*
* Does chmod for an inode that may have an Access Control List. The
* inode->i_mode field must be updated to the desired value by the caller
* before calling this function.
* Returns 0 on success, or a negative error number.
*
* We change the ACL rather than storing some ACL entries in the file
* mode permission bits (which would be more efficient), because that
* would break once additional permissions (like ACL_APPEND, ACL_DELETE
* for directories) are added. There are no more bits available in the
* file mode.
*
* inode->i_mutex: down
*/
int
ext2_acl_chmod(struct _inode *inode)
{
struct posix_acl *acl, *clone;
int error;
if (!test_opt(i_get_sb_ro(inode), POSIX_ACL))
return 0;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
acl = ext2_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
clone = posix_acl_clone(acl, GFP_KERNEL);
posix_acl_release(acl);
if (!clone)
return -ENOMEM;
error = posix_acl_chmod_masq(clone, inode->i_mode);
if (!error)
error = ext2_set_acl(inode, ACL_TYPE_ACCESS, clone);
posix_acl_release(clone);
return error;
}
int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
{
struct posix_acl *acl, *clone;
char *data;
unsigned int len;
int error;
acl = gfs2_acl_get(ip, ACL_TYPE_ACCESS);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (!acl)
return gfs2_setattr_simple(ip, attr);
clone = posix_acl_clone(acl, GFP_NOFS);
error = -ENOMEM;
if (!clone)
goto out;
posix_acl_release(acl);
acl = clone;
error = posix_acl_chmod_masq(acl, attr->ia_mode);
if (!error) {
len = posix_acl_to_xattr(acl, NULL, 0);
data = kmalloc(len, GFP_NOFS);
error = -ENOMEM;
if (data == NULL)
goto out;
posix_acl_to_xattr(acl, data, len);
error = gfs2_xattr_acl_chmod(ip, attr, data);
kfree(data);
set_cached_acl(&ip->i_inode, ACL_TYPE_ACCESS, acl);
}
out:
posix_acl_release(acl);
return error;
}
