1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Kernel Connection Multiplexor 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (c) 2016 Tom Herbert <tom@herbertland.com> 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or modify 8*4882a593Smuzhiyun * it under the terms of the GNU General Public License version 2 9*4882a593Smuzhiyun * as published by the Free Software Foundation. 10*4882a593Smuzhiyun * 11*4882a593Smuzhiyun * User API to clone KCM sockets and attach transport socket to a KCM 12*4882a593Smuzhiyun * multiplexor. 13*4882a593Smuzhiyun */ 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun #ifndef KCM_KERNEL_H 16*4882a593Smuzhiyun #define KCM_KERNEL_H 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun struct kcm_attach { 19*4882a593Smuzhiyun int fd; 20*4882a593Smuzhiyun int bpf_fd; 21*4882a593Smuzhiyun }; 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun struct kcm_unattach { 24*4882a593Smuzhiyun int fd; 25*4882a593Smuzhiyun }; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun struct kcm_clone { 28*4882a593Smuzhiyun int fd; 29*4882a593Smuzhiyun }; 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun #define SIOCKCMATTACH (SIOCPROTOPRIVATE + 0) 32*4882a593Smuzhiyun #define SIOCKCMUNATTACH (SIOCPROTOPRIVATE + 1) 33*4882a593Smuzhiyun #define SIOCKCMCLONE (SIOCPROTOPRIVATE + 2) 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun #define KCMPROTO_CONNECTED 0 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun /* Socket options */ 38*4882a593Smuzhiyun #define KCM_RECV_DISABLE 1 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun #endif 41*4882a593Smuzhiyun 42