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
|
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <gtk/gtk.h>
#include <security/pam_appl.h>
#include <security/pam_misc.h>
/*
*/
struct auth_message {
enum {
AUTH_MSGTYPE_INFO,
AUTH_MSGTYPE_ERROR,
AUTH_MSGTYPE_PROMPT_NOECHO,
AUTH_MSGTYPE_PROMPT_ECHO,
} type;
const char *msg;
};
struct auth_response {
char *response;
};
static int pam_conversation (int nmsgs, const struct pam_message **msg, struct pam_response **resp, void *appdata_ptr);
typedef struct {
GtkWidget *msg;
GtkWidget *username;
GtkWidget *password;
} LoginWidget;
static void destroy (GtkWidget *window, gpointer data);
int do_authenticate(GtkButton *button, LoginWidget *w_login );
int main (int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *hbox, *vbox, *cancel_btn, *ok_btn;
LoginWidget *w_login = (LoginWidget *) g_malloc (sizeof (LoginWidget));
gtk_init (&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
g_signal_connect (G_OBJECT (window), "destroy",
G_CALLBACK (destroy), NULL);
w_login->msg = gtk_label_new ("");
w_login->username = gtk_entry_new ();
w_login->password = gtk_entry_new ();
gtk_entry_set_visibility (GTK_ENTRY(w_login->password), FALSE);
gtk_entry_set_invisible_char (GTK_ENTRY(w_login->password), '*');
ok_btn = gtk_button_new_with_label ("OK!");
cancel_btn = gtk_button_new_with_label ("Cancel!");
g_signal_connect (G_OBJECT (ok_btn), "clicked",
G_CALLBACK (do_authenticate),
(gpointer) w_login);
vbox = gtk_vbox_new(FALSE, 5);
gtk_box_pack_start_defaults (GTK_BOX (vbox), w_login->msg);
gtk_box_pack_start_defaults (GTK_BOX (vbox), w_login->username);
gtk_box_pack_start_defaults (GTK_BOX (vbox), w_login->password);
hbox = gtk_hbox_new(FALSE, 5);
gtk_box_pack_start_defaults (GTK_BOX (hbox), ok_btn);
gtk_box_pack_start_defaults (GTK_BOX (hbox), cancel_btn);
gtk_box_pack_start_defaults (GTK_BOX (vbox), hbox);
gtk_container_add(GTK_CONTAINER (window), vbox);
gtk_widget_show_all(window);
gtk_main();
}
static void
destroy (GtkWidget *window, gpointer data)
{
gtk_main_quit();
}
int do_authenticate(GtkButton *button, LoginWidget *w_login )
{
const gchar *_username = gtk_entry_get_text(GTK_ENTRY (w_login->username));
char *tty = strdup(":0.0");
pam_handle_t *pamh = NULL;
int retval;
struct pam_conv conv;
conv.conv = &pam_conversation;
conv.appdata_ptr = w_login;
retval = pam_start("capu", _username, &conv, &pamh);
retval = pam_set_item (pamh, PAM_TTY, tty);
retval = pam_set_item (pamh, PAM_XDISPLAY, tty);
pam_get_item (pamh, PAM_TTY, (const void **)&tty);
g_message("TTY: %s",tty);
pam_get_item (pamh, PAM_XDISPLAY, (const void **)&tty);
g_message("XDISPLAY: %s",tty);
if (retval == PAM_SUCCESS) {
retval = pam_authenticate(pamh, 0);
g_message("Auth");
}
if (retval == PAM_SUCCESS) {
retval = pam_acct_mgmt(pamh, 0);
}
if (retval == PAM_SUCCESS) {
g_message ("Authenticated");
} else {
g_message ("Not Authenticated");
}
if (pam_end(pamh, retval) != PAM_SUCCESS ) {
pamh = NULL;
}
gtk_main_quit();
return 0;
}
static int
pam_conversation (int nmsgs,
const struct pam_message **msg,
struct pam_response **resp,
void *appdata_ptr)
{
int i, ret = -1;
struct auth_message *messages = 0;
struct auth_response *authresp = 0;
struct pam_response *pam_responses;
LoginWidget *w_login = ( LoginWidget *) appdata_ptr;
messages = calloc(nmsgs, sizeof (struct auth_message));
pam_responses = calloc(nmsgs, sizeof (*pam_responses));
const gchar *_password = gtk_entry_get_text(GTK_ENTRY (w_login->password));
for (i=0; i<nmsgs; ++i)
{
pam_responses[i].resp_retcode = 0;
pam_responses[i].resp = NULL;
messages[i].msg = msg[i]->msg;
switch (msg[i]->msg_style) {
case PAM_PROMPT_ECHO_OFF: messages[i].type = AUTH_MSGTYPE_PROMPT_NOECHO;
pam_responses[i].resp = strdup(_password);
g_message("ECHO_OFF");
break;
case PAM_PROMPT_ECHO_ON: messages[i].type = AUTH_MSGTYPE_PROMPT_ECHO;
g_message("ECHO_ON");
fputs(msg[i]->msg, stderr);
break;
case PAM_ERROR_MSG: messages[i].type = AUTH_MSGTYPE_ERROR;
g_message("ERROR_MSG");
break;
case PAM_TEXT_INFO: messages[i].type = AUTH_MSGTYPE_INFO;
g_message("TEXT_INFO");
break;
default: messages[i].type = AUTH_MSGTYPE_PROMPT_ECHO;
break;
}
}
*resp = pam_responses;
ret = 0;
return PAM_SUCCESS;
}
|
