auth.c
3.74 KB
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
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001, 2004, 2005, 2007, 2009, 2010, 2011
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 <errno.h>
#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
#include <mailutils/errno.h>
#include <mailutils/sys/auth.h>
static int
_authenticate_null (mu_authority_t auth MU_ARG_UNUSED)
{
return 0;
}
int
mu_authority_create_null (mu_authority_t *pauthority, void *owner)
{
int rc = mu_authority_create(pauthority, NULL, owner);
if (rc)
return rc;
mu_authority_set_authenticate (*pauthority, _authenticate_null, owner);
return 0;
}
int
mu_authority_create (mu_authority_t *pauthority, mu_ticket_t ticket, void *owner)
{
mu_authority_t authority;
if (pauthority == NULL)
return MU_ERR_OUT_PTR_NULL;
authority = calloc (1, sizeof (*authority));
if (authority == NULL)
return ENOMEM;
authority->ticket = ticket;
authority->owner = owner;
*pauthority = authority;
return 0;
}
void
mu_authority_destroy (mu_authority_t *pauthority, void *owner)
{
if (pauthority && *pauthority)
{
mu_authority_t authority = *pauthority;
if (authority->owner == owner)
{
mu_ticket_destroy (&authority->ticket);
mu_list_destroy (&authority->auth_methods);
free (authority);
}
*pauthority = NULL;
}
}
void *
mu_authority_get_owner (mu_authority_t authority)
{
return (authority) ? authority->owner : NULL;
}
int
mu_authority_set_ticket (mu_authority_t authority, mu_ticket_t ticket)
{
if (authority == NULL)
return EINVAL;
if (authority->ticket)
mu_ticket_destroy (&authority->ticket);
authority->ticket = ticket;
return 0;
}
int
mu_authority_get_ticket (mu_authority_t authority, mu_ticket_t *pticket)
{
if (authority == NULL)
return EINVAL;
if (pticket == NULL)
return MU_ERR_OUT_PTR_NULL;
if (authority->ticket == NULL)
{
int status = mu_ticket_create (&(authority->ticket), authority);
if (status != 0)
return status;
}
*pticket = authority->ticket;
return 0;
}
struct auth_cb
{
int status;
mu_authority_t authority;
};
static int
try_auth (void *item, void *data)
{
int (*authenticate) (mu_authority_t) = item;
struct auth_cb *cb = data;
if (authenticate (cb->authority) == 0)
{
cb->status = 0;
return 1;
}
return 0;
}
int
mu_authority_authenticate (mu_authority_t authority)
{
if (authority && authority->auth_methods)
{
struct auth_cb cb;
cb.status = MU_ERR_AUTH_FAILURE;
cb.authority = authority;
mu_list_foreach (authority->auth_methods, try_auth, &cb);
return cb.status;
}
return EINVAL;
}
int
mu_authority_set_authenticate (mu_authority_t authority,
int (*_authenticate) (mu_authority_t),
void *owner)
{
if (authority == NULL)
return EINVAL;
if (authority->owner != owner)
return EACCES;
if (!authority->auth_methods)
{
int rc = mu_list_create (&authority->auth_methods);
if (rc)
return rc;
}
mu_list_append (authority->auth_methods, _authenticate);
return 0;
}