1 /* 2 * Copyright (c) 2008 Voltaire Inc. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 * 32 */ 33 #ifndef _UMAD_SYSFS_H 34 #define _UMAD_SYSFS_H 35 36 #include <stdint.h> 37 #include <string.h> 38 #include <stdlib.h> 39 #include <infiniband/types.h> 40 #include <infiniband/umad.h> 41 42 struct dirent; 43 44 extern int sys_read_string(const char *dir_name, const char *file_name, char *str, int len); 45 extern int sys_read_guid(const char *dir_name, const char *file_name, __be64 * net_guid); 46 extern int sys_read_gid(const char *dir_name, const char *file_name, 47 union umad_gid *gid); 48 extern int sys_read_uint64(const char *dir_name, const char *file_name, uint64_t * u); 49 extern int sys_read_uint(const char *dir_name, const char *file_name, unsigned *u); 50 extern int sys_scandir(const char *dirname, struct dirent ***namelist, 51 int (*select)(const struct dirent *), 52 int (*compar)(const struct dirent **, const struct dirent **)); 53 54 #ifdef __FreeBSD__ 55 static inline const char * 56 path_to_sysctl(const char *path, int out_len, char *out) 57 { 58 const char *retval = out; 59 60 /* Validate that out is at least as long as the original path */ 61 if (out_len < (strlen(path) + 1)) 62 return NULL; 63 64 while (*path == '/') 65 path++; 66 67 while (*path) { 68 if (*path == '/') { 69 if (*(path + 1) == '/') 70 *out = '.'; 71 else 72 *out++ = '.'; 73 } else 74 *out++ = *path; 75 path++; 76 } 77 *out = 0; 78 return (retval); 79 } 80 81 #define PATH_TO_SYS(str) \ 82 path_to_sysctl(str, strlen(str) + 1, alloca(strlen(str) + 1)) 83 #else 84 #define PATH_TO_SYS(str) str 85 #endif 86 87 #endif /* _UMAD_SYSFS_H */ 88