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 *
path_to_sysctl(const char * path,int out_len,char * out)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