コード例 #1
0
STATIC int
xfs_vn_mknod(
	struct inode	*dir,
	struct dentry	*dentry,
	umode_t		mode,
	dev_t		rdev)
{
	struct inode	*inode;
	struct xfs_inode *ip = NULL;
	struct posix_acl *default_acl = NULL;
	struct xfs_name	name;
	int		error;

	if (S_ISCHR(mode) || S_ISBLK(mode)) {
		if (unlikely(!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff))
			return -EINVAL;
		rdev = sysv_encode_dev(rdev);
	} else {
		rdev = 0;
	}

	if (IS_POSIXACL(dir)) {
		default_acl = xfs_get_acl(dir, ACL_TYPE_DEFAULT);
		if (IS_ERR(default_acl))
			return PTR_ERR(default_acl);

		if (!default_acl)
			mode &= ~current_umask();
	}

	xfs_dentry_to_name(&name, dentry);
	error = xfs_create(XFS_I(dir), &name, mode, rdev, &ip);
	if (unlikely(error))
		goto out_free_acl;

	inode = VFS_I(ip);

	error = xfs_init_security(inode, dir, &dentry->d_name);
	if (unlikely(error))
		goto out_cleanup_inode;

	if (default_acl) {
		error = -xfs_inherit_acl(inode, default_acl);
		default_acl = NULL;
		if (unlikely(error))
			goto out_cleanup_inode;
	}


	d_instantiate(dentry, inode);
	return -error;

 out_cleanup_inode:
	xfs_cleanup_inode(dir, inode, dentry);
 out_free_acl:
	posix_acl_release(default_acl);
	return -error;
}
コード例 #2
0
ファイル: xfs_iops.c プロジェクト: luyanseu/linux
STATIC int
xfs_vn_mknod(
	struct inode	*dir,
	struct dentry	*dentry,
	umode_t		mode,
	dev_t		rdev)
{
	struct inode	*inode;
	struct xfs_inode *ip = NULL;
	struct posix_acl *default_acl, *acl;
	struct xfs_name	name;
	int		error;

	/*
	 * Irix uses Missed'em'V split, but doesn't want to see
	 * the upper 5 bits of (14bit) major.
	 */
	if (S_ISCHR(mode) || S_ISBLK(mode)) {
		if (unlikely(!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff))
			return -EINVAL;
		rdev = sysv_encode_dev(rdev);
	} else {
		rdev = 0;
	}

	error = posix_acl_create(dir, &mode, &default_acl, &acl);
	if (error)
		return error;

	xfs_dentry_to_name(&name, dentry, mode);
	error = xfs_create(XFS_I(dir), &name, mode, rdev, &ip);
	if (unlikely(error))
		goto out_free_acl;

	inode = VFS_I(ip);

	error = xfs_init_security(inode, dir, &dentry->d_name);
	if (unlikely(error))
		goto out_cleanup_inode;

#ifdef CONFIG_XFS_POSIX_ACL
	if (default_acl) {
		error = xfs_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
		if (error)
			goto out_cleanup_inode;
	}
	if (acl) {
		error = xfs_set_acl(inode, acl, ACL_TYPE_ACCESS);
		if (error)
			goto out_cleanup_inode;
	}
#endif

	d_instantiate(dentry, inode);
 out_free_acl:
	if (default_acl)
		posix_acl_release(default_acl);
	if (acl)
		posix_acl_release(acl);
	return -error;

 out_cleanup_inode:
	xfs_cleanup_inode(dir, inode, dentry);
	goto out_free_acl;
}
コード例 #3
0
ファイル: xfs_iops.c プロジェクト: Tigrouzen/k1099
STATIC int
xfs_vn_mknod(
	struct inode	*dir,
	struct dentry	*dentry,
	int		mode,
	dev_t		rdev)
{
	struct inode	*ip;
	bhv_vnode_t	*vp = NULL, *dvp = vn_from_inode(dir);
	xfs_acl_t	*default_acl = NULL;
	attrexists_t	test_default_acl = _ACL_DEFAULT_EXISTS;
	int		error;

	/*
	 * Irix uses Missed'em'V split, but doesn't want to see
	 * the upper 5 bits of (14bit) major.
	 */
	if (unlikely(!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff))
		return -EINVAL;

	if (unlikely(test_default_acl && test_default_acl(dvp))) {
		if (!_ACL_ALLOC(default_acl)) {
			return -ENOMEM;
		}
		if (!_ACL_GET_DEFAULT(dvp, default_acl)) {
			_ACL_FREE(default_acl);
			default_acl = NULL;
		}
	}

	if (IS_POSIXACL(dir) && !default_acl && xfs_has_fs_struct(current))
		mode &= ~current->fs->umask;

	switch (mode & S_IFMT) {
	case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
		rdev = sysv_encode_dev(rdev);
	case S_IFREG:
		error = xfs_create(XFS_I(dir), dentry, mode, rdev, &vp, NULL);
		break;
	case S_IFDIR:
		error = xfs_mkdir(XFS_I(dir), dentry, mode, &vp, NULL);
		break;
	default:
		error = EINVAL;
		break;
	}

	if (unlikely(!error)) {
		error = xfs_init_security(vp, dir);
		if (error)
			xfs_cleanup_inode(dir, vp, dentry, mode);
	}

	if (unlikely(default_acl)) {
		if (!error) {
			error = _ACL_INHERIT(vp, mode, default_acl);
			if (!error)
				xfs_iflags_set(XFS_I(vp), XFS_IMODIFIED);
			else
				xfs_cleanup_inode(dir, vp, dentry, mode);
		}
		_ACL_FREE(default_acl);
	}

	if (likely(!error)) {
		ASSERT(vp);
		ip = vn_to_inode(vp);

		if (S_ISDIR(mode))
			xfs_validate_fields(ip);
		d_instantiate(dentry, ip);
		xfs_validate_fields(dir);
	}
	return -error;
}
コード例 #4
0
STATIC int
xfs_vn_mknod(
	struct inode	*dir,
	struct dentry	*dentry,
	int		mode,
	dev_t		rdev)
{
	struct inode	*inode;
	struct xfs_inode *ip = NULL;
	xfs_acl_t	*default_acl = NULL;
	struct xfs_name	name;
	int (*test_default_acl)(struct inode *) = _ACL_DEFAULT_EXISTS;
	int		error;

	/*
	 * Irix uses Missed'em'V split, but doesn't want to see
	 * the upper 5 bits of (14bit) major.
	 */
	if (unlikely(!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff))
		return -EINVAL;

	if (test_default_acl && test_default_acl(dir)) {
		if (!_ACL_ALLOC(default_acl)) {
			return -ENOMEM;
		}
		if (!_ACL_GET_DEFAULT(dir, default_acl)) {
			_ACL_FREE(default_acl);
			default_acl = NULL;
		}
	}

	xfs_dentry_to_name(&name, dentry);

	if (IS_POSIXACL(dir) && !default_acl)
		mode &= ~current->fs->umask;

	switch (mode & S_IFMT) {
	case S_IFCHR:
	case S_IFBLK:
	case S_IFIFO:
	case S_IFSOCK:
		rdev = sysv_encode_dev(rdev);
	case S_IFREG:
		error = xfs_create(XFS_I(dir), &name, mode, rdev, &ip, NULL);
		break;
	case S_IFDIR:
		error = xfs_mkdir(XFS_I(dir), &name, mode, &ip, NULL);
		break;
	default:
		error = EINVAL;
		break;
	}

	if (unlikely(error))
		goto out_free_acl;

	inode = VFS_I(ip);

	error = xfs_init_security(inode, dir);
	if (unlikely(error))
		goto out_cleanup_inode;

	if (default_acl) {
		error = _ACL_INHERIT(inode, mode, default_acl);
		if (unlikely(error))
			goto out_cleanup_inode;
		_ACL_FREE(default_acl);
	}


	d_instantiate(dentry, inode);
	return -error;

 out_cleanup_inode:
	xfs_cleanup_inode(dir, inode, dentry);
 out_free_acl:
	if (default_acl)
		_ACL_FREE(default_acl);
	return -error;
}
STATIC int
linvfs_mknod(
	struct inode	*dir,
	struct dentry	*dentry,
	int		mode,
	dev_t		rdev)
{
	struct inode	*ip;
	vattr_t		va;
	vnode_t		*vp = NULL, *dvp = LINVFS_GET_VP(dir);
	xfs_acl_t	*default_acl = NULL;
	attrexists_t	test_default_acl = _ACL_DEFAULT_EXISTS;
	int		error;

	/*
	 * Irix uses Missed'em'V split, but doesn't want to see
	 * the upper 5 bits of (14bit) major.
	 */
	if (!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff)
		return -EINVAL;

	if (test_default_acl && test_default_acl(dvp)) {
		if (!_ACL_ALLOC(default_acl))
			return -ENOMEM;
		if (!_ACL_GET_DEFAULT(dvp, default_acl)) {
			_ACL_FREE(default_acl);
			default_acl = NULL;
		}
	}

	if (IS_POSIXACL(dir) && !default_acl && has_fs_struct(current))
		mode &= ~current->fs->umask;

	memset(&va, 0, sizeof(va));
	va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
	va.va_mode = mode;

	switch (mode & S_IFMT) {
	case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
		va.va_rdev = sysv_encode_dev(rdev);
		va.va_mask |= XFS_AT_RDEV;
		/*FALLTHROUGH*/
	case S_IFREG:
		VOP_CREATE(dvp, dentry, &va, &vp, NULL, error);
		break;
	case S_IFDIR:
		VOP_MKDIR(dvp, dentry, &va, &vp, NULL, error);
		break;
	default:
		error = EINVAL;
		break;
	}

	if (!error)
	{
		error = linvfs_init_security(vp, dir);
		if (error)
			cleanup_inode(dvp, vp, dentry, mode);
	}

	if (default_acl) {
		if (!error) {
			error = _ACL_INHERIT(vp, &va, default_acl);
			if (!error) 
				VMODIFY(vp);
			else
				cleanup_inode(dvp, vp, dentry, mode);
		}
		_ACL_FREE(default_acl);
	}

	if (!error) {
		ASSERT(vp);
		ip = LINVFS_GET_IP(vp);

		if (S_ISCHR(mode) || S_ISBLK(mode))
			ip->i_rdev = rdev;
		else if (S_ISDIR(mode))
			validate_fields(ip);
		d_instantiate(dentry, ip);
		validate_fields(dir);
	}
	return -error;
}