static int selinux_socket_accept(struct socket *sock, struct socket *newsock)
{
	int err;
	struct inode_security_struct *isec;
	struct inode_security_struct *newisec;
	u16 sclass;
	u32 sid;

	err = sock_has_perm(current, sock->sk, SOCKET__ACCEPT);
	if (err)
		return err;

	isec = inode_security_novalidate(SOCK_INODE(sock));
	spin_lock(&isec->lock);
	sclass = isec->sclass;
	sid = isec->sid;
	spin_unlock(&isec->lock);

	newisec = inode_security_novalidate(SOCK_INODE(newsock));
	newisec->sclass = sclass;
	newisec->sid = sid;
	newisec->initialized = LABEL_INITIALIZED;

	return 0;
}
Unknown