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
|
/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004-2012
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
*
* @file access.c
* @brief User access control code
* @author Simone Fedele
*
*/
#include "sesman.h"
extern struct config_sesman *g_cfg; /* in sesman.c */
/******************************************************************************/
int DEFAULT_CC
access_login_allowed(char *user)
{
int gid;
int ok;
if ((0 == g_strncmp(user, "root", 5)) && (0 == g_cfg->sec.allow_root))
{
log_message(LOG_LEVEL_WARNING,
"ROOT login attempted, but root login is disabled");
return 0;
}
if ((0 == g_cfg->sec.ts_users_enable) && (0==g_cfg->sec.ts_always_group_check))
{
LOG_DBG("Terminal Server Users group is disabled, allowing authentication",
1);
return 1;
}
if (0 != g_getuser_info(user, &gid, 0, 0, 0, 0))
{
log_message(LOG_LEVEL_ERROR, "Cannot read user info! - login denied");
return 0;
}
if (g_cfg->sec.ts_users == gid)
{
log_message(LOG_LEVEL_DEBUG,"ts_users is user's primary group");
return 1;
}
if (0 != g_check_user_in_group(user, g_cfg->sec.ts_users, &ok))
{
log_message(LOG_LEVEL_ERROR, "Cannot read group info! - login denied");
return 0;
}
if (ok)
{
return 1;
}
log_message(LOG_LEVEL_INFO, "login denied for user %s", user);
return 0;
}
/******************************************************************************/
int DEFAULT_CC
access_login_mng_allowed(char *user)
{
int gid;
int ok;
if ((0 == g_strncmp(user, "root", 5)) && (0 == g_cfg->sec.allow_root))
{
log_message(LOG_LEVEL_WARNING,
"[MNG] ROOT login attempted, but root login is disabled");
return 0;
}
if (0 == g_cfg->sec.ts_admins_enable)
{
LOG_DBG("[MNG] Terminal Server Admin group is disabled,"
"allowing authentication", 1);
return 1;
}
if (0 != g_getuser_info(user, &gid, 0, 0, 0, 0))
{
log_message(LOG_LEVEL_ERROR, "[MNG] Cannot read user info! - login denied");
return 0;
}
if (g_cfg->sec.ts_admins == gid)
{
LOG_DBG("[MNG] ts_users is user's primary group");
return 1;
}
if (0 != g_check_user_in_group(user, g_cfg->sec.ts_admins, &ok))
{
log_message(LOG_LEVEL_ERROR, "[MNG] Cannot read group info! - login denied");
return 0;
}
if (ok)
{
return 1;
}
log_message(LOG_LEVEL_INFO, "[MNG] login denied for user %s", user);
return 0;
}
|
