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
216
217
218
219
220
221
222
223
224
225
226
227
|
/*
* Copyright (c) 1999-2003 Todd C. Miller <Todd.Miller@courtesan.com>
* Copyright (c) 2002 Michael Stroucken <michael@stroucken.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
*/
#include "config.h"
#include <sys/types.h>
#include <sys/param.h>
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif /* STDC_HEADERS */
#ifdef HAVE_STRING_H
# include <string.h>
#else
# ifdef HAVE_STRINGS_H
# include <strings.h>
# endif
#endif /* HAVE_STRING_H */
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#ifdef HAVE_ERR_H
# include <err.h>
#else
# include "emul/err.h"
#endif /* HAVE_ERR_H */
#include <pwd.h>
/* Needed for SecurID v5.0 Authentication on UNIX */
#define UNIX 1
#include <acexport.h>
#include <sdacmvls.h>
#include "sudo.h"
#include "sudo_auth.h"
#ifndef lint
static const char rcsid[] = "$Sudo: securid5.c,v 1.6 2004/02/13 21:36:47 millert Exp $";
#endif /* lint */
/*
* securid_init - Initialises communications with ACE server
* Arguments in:
* pw - UNUSED
* promptp - UNUSED
* auth - sudo authentication structure
*
* Results out:
* auth - auth->data contains pointer to new SecurID handle
* return code - Fatal if initialization unsuccessful, otherwise
* success.
*/
int
securid_init(pw, promptp, auth)
struct passwd *pw;
char **promptp;
sudo_auth *auth;
{
static SDI_HANDLE sd_dat; /* SecurID handle */
auth->data = (VOID *) &sd_dat; /* For method-specific data */
/* Start communications */
if (AceInitialize() != SD_FALSE)
return(AUTH_SUCCESS);
warnx("failed to initialise the ACE API library");
return(AUTH_FATAL);
}
/*
* securid_setup - Initialises a SecurID transaction and locks out other
* ACE servers
*
* Arguments in:
* pw - struct passwd for username
* promptp - UNUSED
* auth - sudo authentication structure for SecurID handle
*
* Results out:
* return code - Success if transaction started correctly, fatal
* otherwise
*/
int
securid_setup(pw, promptp, auth)
struct passwd *pw;
char **promptp;
sudo_auth *auth;
{
SDI_HANDLE *sd = (SDI_HANDLE *) auth->data;
int retval;
/* Re-initialize SecurID every time. */
if (SD_Init(sd) != ACM_OK) {
warnx("unable to contact the SecurID server");
return(AUTH_FATAL);
}
/* Lock new PIN code */
retval = SD_Lock(*sd, pw->pw_name);
switch (retval) {
case ACE_UNDEFINED_USERNAME:
warnx("invalid username length for SecurID");
return(AUTH_FATAL);
case ACE_ERR_INVALID_HANDLE:
warnx("invalid Authentication Handle for SecurID");
return(AUTH_FATAL);
case ACM_ACCESS_DENIED:
warnx("SecurID communication failed");
return(AUTH_FATAL);
case ACM_OK:
warnx("User ID locked for SecurID Authentication");
return(AUTH_SUCCESS);
}
}
/*
* securid_verify - Authenticates user and handles ACE responses
*
* Arguments in:
* pw - struct passwd for username
* pass - UNUSED
* auth - sudo authentication structure for SecurID handle
*
* Results out:
* return code - Success on successful authentication, failure on
* incorrect authentication, fatal on errors
*/
int
securid_verify(pw, pass, auth)
struct passwd *pw;
char *pass;
sudo_auth *auth;
{
SDI_HANDLE *sd = (SDI_HANDLE *) auth->data;
int rval;
pass = (char *) tgetpass("Enter your PASSCODE: ",
def_passwd_timeout * 60, tgetpass_flags);
/* Have ACE verify password */
switch (SD_Check(*sd, pass, pw->pw_name)) {
case ACE_UNDEFINED_PASSCODE:
warnx("invalid passcode length for SecurID");
rval = AUTH_FATAL;
break;
case ACE_UNDEFINED_USERNAME:
warnx("invalid username length for SecurID");
rval = AUTH_FATAL;
break;
case ACE_ERR_INVALID_HANDLE:
warnx("invalid Authentication Handle for SecurID");
rval = AUTH_FATAL;
case ACM_ACCESS_DENIED:
rval = AUTH_FAILURE;
break;
case ACM_NEXT_CODE_REQUIRED:
/* Sometimes (when current token close to expire?)
ACE challenges for the next token displayed
(entered without the PIN) */
pass = (char *) tgetpass("\
!!! ATTENTION !!!\n\
Wait for the token code to change, \n\
then enter the new token code.\n", \
def_passwd_timeout * 60, tgetpass_flags);
if (SD_Next(*sd, pass) == ACM_OK) {
rval = AUTH_SUCCESS;
break;
}
rval = AUTH_FAILURE;
break;
case ACM_NEW_PIN_REQUIRED:
/*
* This user's SecurID has not been activated yet,
* or the pin has been reset
*/
/* XXX - Is setting up a new PIN within sudo's scope? */
SD_Pin(*sd, "");
fprintf(stderr, "Your SecurID access has not yet been set up.\n");
fprintf(stderr, "Please set up a PIN before you try to authenticate.\n");
rval = AUTH_FATAL;
break;
}
/* Free resources */
SD_Close(*sd);
/* Return stored state to calling process */
return(rval);
}
|
