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
|
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2002, 2007, 2009-2012 Free Software Foundation, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with this library. If not, see
<http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
#ifdef HAVE_SHADOW_H
# include <shadow.h>
#endif
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#ifdef HAVE_CRYPT_H
# include <crypt.h>
#endif
#include <mailutils/list.h>
#include <mailutils/iterator.h>
#include <mailutils/mailbox.h>
#include <mailutils/mu_auth.h>
#include <mailutils/errno.h>
/* System database */
static int
mu_auth_system (struct mu_auth_data **return_data, const struct passwd *pw)
{
char *mailbox_name;
int rc;
if (!pw)
return MU_ERR_AUTH_FAILURE;
rc = mu_construct_user_mailbox_url (&mailbox_name, pw->pw_name);
if (rc)
return rc; /* FIXME: Return code is lost */
rc = mu_auth_data_alloc (return_data,
pw->pw_name,
pw->pw_passwd,
pw->pw_uid,
pw->pw_gid,
pw->pw_gecos,
pw->pw_dir,
pw->pw_shell,
mailbox_name,
1);
free (mailbox_name);
return rc;
}
int
mu_auth_system_by_name (struct mu_auth_data **return_data,
const void *key,
void *func_data MU_ARG_UNUSED,
void *call_data MU_ARG_UNUSED)
{
if (!key)
return EINVAL;
return mu_auth_system (return_data, getpwnam (key));
}
static int
mu_auth_system_by_uid (struct mu_auth_data **return_data,
const void *key,
void *func_data MU_ARG_UNUSED,
void *call_data MU_ARG_UNUSED)
{
if (!key)
return EINVAL;
return mu_auth_system (return_data, getpwuid (*(uid_t*) key));
}
static int
mu_authenticate_generic (struct mu_auth_data **return_data MU_ARG_UNUSED,
const void *key,
void *func_data MU_ARG_UNUSED,
void *call_data)
{
const struct mu_auth_data *auth_data = key;
char *pass = call_data;
if (!auth_data || !pass)
return EINVAL;
if (!auth_data->passwd)
return MU_ERR_AUTH_FAILURE;
{
char *crypt_pass = crypt (pass, auth_data->passwd);
if (!crypt_pass)
return MU_ERR_AUTH_FAILURE;
return strcmp (auth_data->passwd, crypt_pass) == 0 ?
0 : MU_ERR_AUTH_FAILURE;
}
}
/* Called only if generic fails */
static int
mu_authenticate_system (struct mu_auth_data **return_data MU_ARG_UNUSED,
const void *key,
void *func_data MU_ARG_UNUSED,
void *call_data)
{
const struct mu_auth_data *auth_data = key;
#ifdef HAVE_SHADOW_H
char *pass = call_data;
if (auth_data)
{
struct spwd *spw;
spw = getspnam (auth_data->name);
if (spw)
{
char *crypt_pass = crypt (pass, spw->sp_pwdp);
return crypt_pass && strcmp (spw->sp_pwdp, crypt_pass) == 0 ?
0 : MU_ERR_AUTH_FAILURE;
}
}
#endif
return MU_ERR_AUTH_FAILURE;
}
struct mu_auth_module mu_auth_system_module = {
"system",
NULL,
mu_authenticate_system,
NULL,
mu_auth_system_by_name,
NULL,
mu_auth_system_by_uid,
NULL
};
struct mu_auth_module mu_auth_generic_module = {
"generic",
NULL,
mu_authenticate_generic,
NULL,
mu_auth_nosupport,
NULL,
mu_auth_nosupport,
NULL
};
|
