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