1 /* $NetBSD: moduleparam.h,v 1.8 2018/08/27 13:57:24 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Taylor R. Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LINUX_MODULEPARAM_H_ 33 #define _LINUX_MODULEPARAM_H_ 34 35 #include <sys/types.h> 36 37 struct linux_module_param_info { 38 const char *dname; // Name used for description 39 const char *name; // Name for sysctl 40 void *ptr; // Pointer to variable value 41 int type; // MTYPE_ 42 mode_t mode; // 600 (rw) or 400 (r) 43 }; 44 45 #define MTYPE_int 0 46 #define MTYPE_bool 1 47 #define MTYPE_charp 2 48 #define MTYPE_uint 3 49 50 #define module_param_named(NAME, VAR, TYPE, MODE) \ 51 static __attribute__((__used__)) struct linux_module_param_info info_ ## NAME = { \ 52 .dname = # NAME, \ 53 .name = # VAR, \ 54 .ptr = & VAR, \ 55 .type = MTYPE_ ## TYPE, \ 56 .mode = MODE, \ 57 }; \ 58 __link_set_add_data(linux_module_param_info, info_ ## NAME) 59 60 #define module_param(VAR, TYPE, MODE) module_param_named(VAR, VAR, TYPE, MODE) 61 #define module_param_unsafe module_param 62 #define module_param_named_unsafe module_param_named 63 64 #endif /* _LINUX_MODULEPARAM_H_ */ 65