1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager system settings service
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* (C) Copyright 2008 - 2009 Red Hat, Inc.
*/
#include <glib.h>
#include <stdlib.h>
#include <string.h>
#include "utils.h"
#include "sha1.h"
#include "shvar.h"
/*
* utils_bin2hexstr
*
* Convert a byte-array into a hexadecimal string.
*
* Code originally by Alex Larsson <alexl@redhat.com> and
* copyright Red Hat, Inc. under terms of the LGPL.
*
*/
char *
utils_bin2hexstr (const char *bytes, int len, int final_len)
{
static char hex_digits[] = "0123456789abcdef";
char *result;
int i;
gsize buflen = (len * 2) + 1;
g_return_val_if_fail (bytes != NULL, NULL);
g_return_val_if_fail (len > 0, NULL);
g_return_val_if_fail (len < 4096, NULL); /* Arbitrary limit */
if (final_len > -1)
g_return_val_if_fail (final_len < buflen, NULL);
result = g_malloc0 (buflen);
for (i = 0; i < len; i++)
{
result[2*i] = hex_digits[(bytes[i] >> 4) & 0xf];
result[2*i+1] = hex_digits[bytes[i] & 0xf];
}
/* Cut converted key off at the correct length for this cipher type */
if (final_len > -1)
result[final_len] = '\0';
else
result[buflen - 1] = '\0';
return result;
}
/* From hostap, Copyright (c) 2002-2005, Jouni Malinen <jkmaline@cc.hut.fi> */
static int hex2num (char c)
{
if (c >= '0' && c <= '9')
return c - '0';
if (c >= 'a' && c <= 'f')
return c - 'a' + 10;
if (c >= 'A' && c <= 'F')
return c - 'A' + 10;
return -1;
}
static int hex2byte (const char *hex)
{
int a, b;
a = hex2num(*hex++);
if (a < 0)
return -1;
b = hex2num(*hex++);
if (b < 0)
return -1;
return (a << 4) | b;
}
char *
utils_hexstr2bin (const char *hex, size_t len)
{
size_t i;
int a;
const char * ipos = hex;
char * buf = NULL;
char * opos;
/* Length must be a multiple of 2 */
if ((len % 2) != 0)
return NULL;
opos = buf = g_malloc0 ((len / 2) + 1);
for (i = 0; i < len; i += 2) {
a = hex2byte (ipos);
if (a < 0) {
g_free (buf);
return NULL;
}
*opos++ = a;
ipos += 2;
}
return buf;
}
/* End from hostap */
char *
utils_hash_byte_array (const GByteArray *data)
{
unsigned char buf[SHA1_MAC_LEN];
static const char *key = "0123456789abcdefghijklmnopqrstuvwxyz";
memset (buf, 0, sizeof (buf));
sha1_mac ((const unsigned char *) key, strlen (key), (const u_int8_t *) data->data, data->len, &buf[0]);
return utils_bin2hexstr ((const char *) &buf[0], SHA1_MAC_LEN, SHA1_MAC_LEN * 2);
}
char *
utils_cert_path (const char *parent, const char *suffix)
{
char *name, *dir, *path;
name = utils_get_ifcfg_name (parent);
dir = g_path_get_dirname (parent);
path = g_strdup_printf ("%s/%s-%s", dir, name, suffix);
g_free (dir);
g_free (name);
return path;
}
char *
utils_get_ifcfg_name (const char *file)
{
char *ifcfg_name;
char *base;
base = g_path_get_basename (file);
if (!base)
return NULL;
ifcfg_name = g_strdup (base + strlen (IFCFG_TAG));
g_free (base);
return ifcfg_name;
}
char *
utils_get_keys_path (const char *parent)
{
char *ifcfg_name;
char *keys_file = NULL;
char *tmp = NULL;
ifcfg_name = utils_get_ifcfg_name (parent);
if (!ifcfg_name)
return NULL;
tmp = g_path_get_dirname (parent);
if (!tmp)
goto out;
keys_file = g_strdup_printf ("%s/" KEYS_TAG "%s", tmp, ifcfg_name);
out:
g_free (tmp);
g_free (ifcfg_name);
return keys_file;
}
shvarFile *
utils_get_keys_ifcfg (const char *parent, gboolean should_create)
{
shvarFile *ifcfg = NULL;
char *path;
path = utils_get_keys_path (parent);
if (!path)
return NULL;
if (should_create && !g_file_test (path, G_FILE_TEST_EXISTS))
ifcfg = svCreateFile (path);
if (!ifcfg)
ifcfg = svNewFile (path);
g_free (path);
return ifcfg;
}
|
