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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/*
*Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.
*
*Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
*"Software"), to deal in the Software without restriction, including
*without limitation the rights to use, copy, modify, merge, publish,
*distribute, sublicense, and/or sell copies of the Software, and to
*permit persons to whom the Software is furnished to do so, subject to
*the following conditions:
*
*The above copyright notice and this permission notice shall be
*included in all copies or substantial portions of the Software.
*
*THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
*EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
*MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
*NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
*ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
*CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
*WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*Except as contained in this notice, the name of Harold L Hunt II
*shall not be used in advertising or otherwise to promote the sale, use
*or other dealings in this Software without prior written authorization
*from Harold L Hunt II.
*
* Authors: Harold L Hunt II
*/
#ifdef HAVE_XWIN_CONFIG_H
#include <xwin-config.h>
#endif
#include "win.h"
/* Includes for authorization */
#include "securitysrv.h"
/*
* Constants
*/
#define AUTH_NAME "MIT-MAGIC-COOKIE-1"
/*
* Locals
*/
static XID g_authId = 0;
static unsigned int g_uiAuthDataLen = 0;
static char *g_pAuthData = NULL;
/*
* Code to generate a MIT-MAGIC-COOKIE-1, copied from under XCSECURITY
*/
#ifndef XCSECURITY
static
void
GenerateRandomData (int len, char *buf)
{
int fd;
#ifdef _MSC_VER
static HANDLE hAdvApi32;
static BOOLEAN (_stdcall * RtlGenRandom)(void *,unsigned long);
if (!hAdvApi32)
{
hAdvApi32=LoadLibrary("advapi32.dll");
RtlGenRandom=(BOOLEAN (_stdcall *)(void*,unsigned long))GetProcAddress(hAdvApi32,"SystemFunction036");
}
RtlGenRandom(buf, len);
#else
fd = open("/dev/urandom", O_RDONLY);
read(fd, buf, len);
close(fd);
#endif
}
static char cookie[16]; /* 128 bits */
XID
static MitGenerateCookie (
unsigned data_length,
char *data,
XID id,
unsigned *data_length_return,
char **data_return)
{
int i = 0;
int status;
while (data_length--)
{
cookie[i++] += *data++;
if (i >= sizeof (cookie)) i = 0;
}
GenerateRandomData(sizeof (cookie), cookie);
status = MitAddCookie(sizeof (cookie), cookie, id);
if (!status)
{
id = -1;
}
else
{
*data_return = cookie;
*data_length_return = sizeof (cookie);
}
return id;
}
static
XID
GenerateAuthorization(
unsigned name_length,
char *name,
unsigned data_length,
char *data,
unsigned *data_length_return,
char **data_return)
{
return MitGenerateCookie(data_length, data,
FakeClientID(0), data_length_return, data_return);
}
#endif
/*
* Generate authorization cookie for internal server clients
*/
Bool
winGenerateAuthorization (void)
{
Bool fFreeAuth = FALSE;
SecurityAuthorizationPtr pAuth = NULL;
/* Call OS layer to generate authorization key */
g_authId = GenerateAuthorization (strlen (AUTH_NAME),
AUTH_NAME,
0,
NULL,
&g_uiAuthDataLen,
&g_pAuthData);
if ((XID) ~0L == g_authId)
{
ErrorF ("winGenerateAuthorization - GenerateAuthorization failed\n");
goto auth_bailout;
}
#ifdef WINDBG
else
{
winDebug("winGenerateAuthorization - GenerateAuthorization success!\n"
"AuthDataLen: %d AuthData: %s\n",
g_uiAuthDataLen, g_pAuthData);
}
#endif
#ifdef XCSECURITY
/* Allocate structure for additional auth information */
pAuth = (SecurityAuthorizationPtr)
xalloc (sizeof (SecurityAuthorizationRec));
if (!(pAuth))
{
ErrorF ("winGenerateAuthorization - Failed allocating "
"SecurityAuthorizationPtr.\n");
goto auth_bailout;
}
/* Fill in the auth fields */
pAuth->id = g_authId;
pAuth->timeout = 0; /* live for x seconds after refcnt == 0 */
pAuth->group = None;
pAuth->trustLevel = XSecurityClientTrusted;
pAuth->refcnt = 1; /* this auth must stick around */
pAuth->secondsRemaining = 0;
pAuth->timer = NULL;
pAuth->eventClients = NULL;
/* Add the authorization to the server's auth list */
if (!AddResource (g_authId,
SecurityAuthorizationResType,
pAuth))
{
ErrorF ("winGenerateAuthorization - AddResource failed for auth.\n");
fFreeAuth = TRUE;
goto auth_bailout;
}
/* Don't free the auth data, since it is still used internally */
pAuth = NULL;
#endif
return TRUE;
auth_bailout:
if (fFreeAuth)
xfree (pAuth);
return FALSE;
}
/* Use our generated cookie for authentication */
void
winSetAuthorization(void)
{
XSetAuthorization (AUTH_NAME,
strlen (AUTH_NAME),
g_pAuthData,
g_uiAuthDataLen);
}
|
