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
|
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2002, 2006-2008, 2010-2012 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_SECURITY_PAM_APPL_H
# include <security/pam_appl.h>
#endif
#ifdef HAVE_CRYPT_H
# include <crypt.h>
#endif
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h> /*FIXME!*/
#include <mailutils/list.h>
#include <mailutils/iterator.h>
#include <mailutils/mailbox.h>
#include <mailutils/mu_auth.h>
#include <mailutils/nls.h>
#include <mailutils/errno.h>
#include <mailutils/util.h>
#ifdef ENABLE_VIRTUAL_DOMAINS
struct mu_gocs_virtual mu_virtual_module_config = { SITE_VIRTUAL_PWDDIR };
int
mu_virtual_module_init (enum mu_gocs_op op, void *data)
{
if (op == mu_gocs_op_set && data)
{
struct mu_gocs_virtual *p = data;
mu_virtual_module_config = *p;
}
return 0;
}
#if !HAVE_FGETPWENT
/* FIXME: A temporary solution. Need proper declaration in .h */
extern struct passwd *mu_fgetpwent (FILE *fp);
#define fgetpwent mu_fgetpwent
#endif
static struct passwd *
getpwnam_virtual (const char *u)
{
struct passwd *pw = NULL;
FILE *pfile;
size_t i = 0, len = strlen (u), delim = 0;
char *filename;
for (i = 0; i < len && delim == 0; i++)
if (u[i] == '!' || u[i] == ':' || u[i] == '@')
delim = i;
if (delim == 0)
return NULL;
filename = mu_make_file_name (mu_virtual_module_config.pwddir, &u[delim + 1]);
if (filename == NULL)
return NULL;
pfile = fopen (filename, "r");
free (filename);
if (pfile)
{
while ((pw = fgetpwent (pfile)) != NULL)
{
if (strlen (pw->pw_name) == delim
&& strncmp (u, pw->pw_name, delim) == 0)
break;
}
fclose (pfile);
}
return pw;
}
static struct passwd *
getpwnam_ip_virtual (const char *u)
{
struct sockaddr_in addr;
struct passwd *pw = NULL;
socklen_t len = sizeof (addr);
if (getsockname (0, (struct sockaddr *)&addr, &len) == 0)
{
char *ip;
char *user;
struct hostent *info = gethostbyaddr ((char *)&addr.sin_addr,
4, AF_INET);
if (info)
{
user = malloc (strlen (info->h_name) + strlen (u) + 2);
if (user)
{
sprintf (user, "%s!%s", u, info->h_name);
pw = getpwnam_virtual (user);
free (user);
}
}
if (!pw)
{
ip = inet_ntoa (addr.sin_addr);
user = malloc (strlen (ip) + strlen (u) + 2);
if (user)
{
sprintf (user, "%s!%s", u, ip);
pw = getpwnam_virtual (user);
free (user);
}
}
}
return pw;
}
/* Virtual domains */
static int
mu_auth_virt_domain_by_name (struct mu_auth_data **return_data,
const void *key,
void *unused_func_data, void *unused_call_data)
{
int rc;
struct passwd *pw;
char *mailbox_name;
if (!key)
return EINVAL;
pw = getpwnam_virtual (key);
if (!pw)
{
pw = getpwnam_ip_virtual (key);
if (!pw)
return MU_ERR_AUTH_FAILURE;
}
mailbox_name = mu_make_file_name (pw->pw_dir, "INBOX");
if (!mailbox_name)
return ENOMEM;
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,
0);
free (mailbox_name);
return rc;
}
#else
static int
mu_auth_virt_domain_by_name (struct mu_auth_data **return_data MU_ARG_UNUSED,
const void *key MU_ARG_UNUSED,
void *func_data MU_ARG_UNUSED,
void *call_data MU_ARG_UNUSED)
{
return ENOSYS;
}
#endif
struct mu_auth_module mu_auth_virtual_module = {
"virtdomain",
#ifdef ENABLE_VIRTUAL_DOMAINS
mu_virtual_module_init,
#else
NULL,
#endif
mu_auth_nosupport,
NULL,
mu_auth_virt_domain_by_name,
NULL,
mu_auth_nosupport,
NULL
};
|
