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
|
/**
* 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 scp_v0.c
* @brief scp version 0 implementation
* @author Jay Sorg, Simone Fedele
*
*/
#include "sesman.h"
extern struct config_sesman *g_cfg; /* in sesman.c */
/******************************************************************************/
void DEFAULT_CC
scp_v0_process(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
{
int display = 0;
tbus data;
struct session_item *s_item;
data = auth_userpass(s->username, s->password);
if (s->type == SCP_GW_AUTHENTICATION)
{
/* this is just authentication in a gateway situation */
/* g_writeln("SCP_GW_AUTHENTICATION message received"); */
if (data)
{
if (1 == access_login_allowed(s->username))
{
/* the user is member of the correct groups. */
scp_v0s_replyauthentication(c, 0);
log_message(LOG_LEVEL_INFO, "Access permitted for user: %s",
s->username);
/* g_writeln("Connection allowed"); */
}
else
{
scp_v0s_replyauthentication(c, 3);
log_message(LOG_LEVEL_INFO, "Username okey but group problem for "
"user: %s", s->username);
/* g_writeln("user password ok, but group problem"); */
}
}
else
{
/* g_writeln("username or password error"); */
log_message(LOG_LEVEL_INFO, "Username or password error for user: %s",
s->username);
scp_v0s_replyauthentication(c, 2);
}
auth_end(data);
}
else if (data)
{
s_item = session_get_bydata(s->username, s->width, s->height,
s->bpp, s->type);
if (s_item != 0)
{
display = s_item->display;
if (0 != s->client_ip)
{
log_message( LOG_LEVEL_INFO, "++ reconnected session: username %s, "
"display :%d.0, session_pid %d, ip %s",
s->username, display, s_item->pid, s->client_ip);
}
else
{
log_message(LOG_LEVEL_INFO, "++ reconnected session: username %s, "
"display :%d.0, session_pid %d", s->username, display,
s_item->pid);
}
session_reconnect(display, s->username);
auth_end(data);
/* don't set data to null here */
}
else
{
LOG_DBG("pre auth");
if (1 == access_login_allowed(s->username))
{
if (0 != s->client_ip)
{
log_message(LOG_LEVEL_INFO, "++ created session (access granted): "
"username %s, ip %s", s->username, s->client_ip);
}
else
{
log_message(LOG_LEVEL_INFO, "++ created session (access granted): "
"username %s", s->username);
}
if (SCP_SESSION_TYPE_XVNC == s->type)
{
log_message( LOG_LEVEL_INFO, "starting Xvnc session...");
display = session_start(s->width, s->height, s->bpp, s->username,
s->password, data, SESMAN_SESSION_TYPE_XVNC,
s->domain, s->program, s->directory,
s->client_ip);
}
else
{
log_message(LOG_LEVEL_INFO, "starting X11rdp session...");
display = session_start(s->width, s->height, s->bpp, s->username,
s->password, data, SESMAN_SESSION_TYPE_XRDP,
s->domain, s->program, s->directory,
s->client_ip);
}
}
else
{
display = 0;
}
}
if (display == 0)
{
auth_end(data);
scp_v0s_deny_connection(c);
}
else
{
scp_v0s_allow_connection(c, display);
}
}
else
{
scp_v0s_deny_connection(c);
}
}
|
