3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * Alternatively, this software may be distributed under the terms of the
17 * GNU General Public License ("GPL") version 2 as published by the Free
18 * Software Foundation.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
| 3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * Alternatively, this software may be distributed under the terms of the
17 * GNU General Public License ("GPL") version 2 as published by the Free
18 * Software Foundation.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
|
34
35/*
36 * IEEE 802.11 NULL crypto support.
37 */
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/mbuf.h>
41#include <sys/module.h>
42
43#include <sys/socket.h>
44
45#include <net/if.h>
46#include <net/if_media.h>
47#include <net/ethernet.h>
48
49#include <net80211/ieee80211_var.h>
50
51static void *none_attach(struct ieee80211com *, struct ieee80211_key *);
52static void none_detach(struct ieee80211_key *);
53static int none_setkey(struct ieee80211_key *);
54static int none_encap(struct ieee80211_key *, struct mbuf *, u_int8_t);
55static int none_decap(struct ieee80211_key *, struct mbuf *);
56static int none_enmic(struct ieee80211_key *, struct mbuf *);
57static int none_demic(struct ieee80211_key *, struct mbuf *);
58
59const struct ieee80211_cipher ieee80211_cipher_none = {
60 .ic_name = "NONE",
61 .ic_cipher = IEEE80211_CIPHER_NONE,
62 .ic_header = 0,
63 .ic_trailer = 0,
64 .ic_miclen = 0,
65 .ic_attach = none_attach,
66 .ic_detach = none_detach,
67 .ic_setkey = none_setkey,
68 .ic_encap = none_encap,
69 .ic_decap = none_decap,
70 .ic_enmic = none_enmic,
71 .ic_demic = none_demic,
72};
73
74static void *
75none_attach(struct ieee80211com *ic, struct ieee80211_key *k)
76{
77 return ic; /* for diagnostics+stats */
78}
79
80static void
81none_detach(struct ieee80211_key *k)
82{
83 (void) k;
84}
85
86static int
87none_setkey(struct ieee80211_key *k)
88{
89 (void) k;
90 return 1;
91}
92
93static int
94none_encap(struct ieee80211_key *k, struct mbuf *m, u_int8_t keyid)
95{
96 struct ieee80211com *ic = k->wk_private;
97#ifdef IEEE80211_DEBUG
98 struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *);
99#endif
100
101 /*
102 * The specified key is not setup; this can
103 * happen, at least, when changing keys.
104 */
105 IEEE80211_DPRINTF(ic, IEEE80211_MSG_CRYPTO,
106 "[%s] key id %u is not set (encap)\n",
107 ether_sprintf(wh->i_addr1), keyid>>6);
108 ic->ic_stats.is_tx_badcipher++;
109 return 0;
110}
111
112static int
113none_decap(struct ieee80211_key *k, struct mbuf *m)
114{
115 struct ieee80211com *ic = k->wk_private;
116#ifdef IEEE80211_DEBUG
117 struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *);
118 const u_int8_t *ivp = (const u_int8_t *)&wh[1];
119#endif
120
121 /*
122 * The specified key is not setup; this can
123 * happen, at least, when changing keys.
124 */
125 /* XXX useful to know dst too */
126 IEEE80211_DPRINTF(ic, IEEE80211_MSG_CRYPTO,
127 "[%s] key id %u is not set (decap)\n",
128 ether_sprintf(wh->i_addr2), ivp[IEEE80211_WEP_IVLEN] >> 6);
129 ic->ic_stats.is_rx_badkeyid++;
130 return 0;
131}
132
133static int
134none_enmic(struct ieee80211_key *k, struct mbuf *m)
135{
136 struct ieee80211com *ic = k->wk_private;
137
138 ic->ic_stats.is_tx_badcipher++;
139 return 0;
140}
141
142static int
143none_demic(struct ieee80211_key *k, struct mbuf *m)
144{
145 struct ieee80211com *ic = k->wk_private;
146
147 ic->ic_stats.is_rx_badkeyid++;
148 return 0;
149}
| 34
35/*
36 * IEEE 802.11 NULL crypto support.
37 */
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/mbuf.h>
41#include <sys/module.h>
42
43#include <sys/socket.h>
44
45#include <net/if.h>
46#include <net/if_media.h>
47#include <net/ethernet.h>
48
49#include <net80211/ieee80211_var.h>
50
51static void *none_attach(struct ieee80211com *, struct ieee80211_key *);
52static void none_detach(struct ieee80211_key *);
53static int none_setkey(struct ieee80211_key *);
54static int none_encap(struct ieee80211_key *, struct mbuf *, u_int8_t);
55static int none_decap(struct ieee80211_key *, struct mbuf *);
56static int none_enmic(struct ieee80211_key *, struct mbuf *);
57static int none_demic(struct ieee80211_key *, struct mbuf *);
58
59const struct ieee80211_cipher ieee80211_cipher_none = {
60 .ic_name = "NONE",
61 .ic_cipher = IEEE80211_CIPHER_NONE,
62 .ic_header = 0,
63 .ic_trailer = 0,
64 .ic_miclen = 0,
65 .ic_attach = none_attach,
66 .ic_detach = none_detach,
67 .ic_setkey = none_setkey,
68 .ic_encap = none_encap,
69 .ic_decap = none_decap,
70 .ic_enmic = none_enmic,
71 .ic_demic = none_demic,
72};
73
74static void *
75none_attach(struct ieee80211com *ic, struct ieee80211_key *k)
76{
77 return ic; /* for diagnostics+stats */
78}
79
80static void
81none_detach(struct ieee80211_key *k)
82{
83 (void) k;
84}
85
86static int
87none_setkey(struct ieee80211_key *k)
88{
89 (void) k;
90 return 1;
91}
92
93static int
94none_encap(struct ieee80211_key *k, struct mbuf *m, u_int8_t keyid)
95{
96 struct ieee80211com *ic = k->wk_private;
97#ifdef IEEE80211_DEBUG
98 struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *);
99#endif
100
101 /*
102 * The specified key is not setup; this can
103 * happen, at least, when changing keys.
104 */
105 IEEE80211_DPRINTF(ic, IEEE80211_MSG_CRYPTO,
106 "[%s] key id %u is not set (encap)\n",
107 ether_sprintf(wh->i_addr1), keyid>>6);
108 ic->ic_stats.is_tx_badcipher++;
109 return 0;
110}
111
112static int
113none_decap(struct ieee80211_key *k, struct mbuf *m)
114{
115 struct ieee80211com *ic = k->wk_private;
116#ifdef IEEE80211_DEBUG
117 struct ieee80211_frame *wh = mtod(m, struct ieee80211_frame *);
118 const u_int8_t *ivp = (const u_int8_t *)&wh[1];
119#endif
120
121 /*
122 * The specified key is not setup; this can
123 * happen, at least, when changing keys.
124 */
125 /* XXX useful to know dst too */
126 IEEE80211_DPRINTF(ic, IEEE80211_MSG_CRYPTO,
127 "[%s] key id %u is not set (decap)\n",
128 ether_sprintf(wh->i_addr2), ivp[IEEE80211_WEP_IVLEN] >> 6);
129 ic->ic_stats.is_rx_badkeyid++;
130 return 0;
131}
132
133static int
134none_enmic(struct ieee80211_key *k, struct mbuf *m)
135{
136 struct ieee80211com *ic = k->wk_private;
137
138 ic->ic_stats.is_tx_badcipher++;
139 return 0;
140}
141
142static int
143none_demic(struct ieee80211_key *k, struct mbuf *m)
144{
145 struct ieee80211com *ic = k->wk_private;
146
147 ic->ic_stats.is_rx_badkeyid++;
148 return 0;
149}
|