2 * Copyright (c) 2013 Qualcomm Atheros, Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted (subject to the limitations in the
7 * disclaimer below) provided that the following conditions are met:
9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the
17 * * Neither the name of Qualcomm Atheros nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
22 * GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
23 * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
30 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
31 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
32 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
33 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 #include <adf_os_types.h>
37 #include <adf_os_dma.h>
38 #include <adf_os_timer.h>
39 #include <adf_os_lock.h>
40 #include <adf_os_io.h>
41 #include <adf_os_mem.h>
42 #include <adf_os_module.h>
43 #include <adf_os_util.h>
44 #include <adf_os_stdtypes.h>
45 #include <adf_os_defer.h>
46 #include <adf_os_atomic.h>
51 #include <if_ethersubr.h>
52 #include "ieee80211_var.h"
54 #include "_ieee80211.h"
55 #include "ieee80211.h"
59 ieee80211_tgt_crypto_encap(struct ieee80211_frame *wh,
60 struct ieee80211_node_target *ni,
63 #define CRYPTO_KEY_TYPE_AES 2
64 #define CRYPTO_KEY_TYPE_TKIP 3
65 #define CRYPTO_KEY_TYPE_WAPI 4
66 #define IEEE80211_WLAN_HDR_LEN 24
70 a_uint16_t offset = IEEE80211_WLAN_HDR_LEN;
73 if (IEEE80211_QOS_HAS_SEQ(wh))
74 offset += 4; // pad for 4 byte alignment
76 iv = (a_uint8_t *) wh;
80 case CRYPTO_KEY_TYPE_AES:
87 *iv++ = (a_uint8_t) ni->ni_iv16;
88 *iv++ = (a_uint8_t) (ni->ni_iv16 >> 8);
92 tmp = (a_uint16_t) ni->ni_iv32;
93 *iv++ = (a_uint8_t) tmp;
94 *iv++ = (a_uint8_t) (tmp >> 8);
96 tmp = (a_uint16_t) (ni->ni_iv32 >> 16);
97 *iv++ = (a_uint8_t) tmp;
98 *iv = (a_uint8_t) (tmp >> 8);
100 case CRYPTO_KEY_TYPE_TKIP:
102 if (ni->ni_iv16 == 0)
107 b1 = (a_uint8_t) (ni->ni_iv16 >> 8);
108 b2 = (b1 | 0x20) & 0x7f;
113 *iv++ = (a_uint8_t) ni->ni_iv16;
116 tmp = (a_uint16_t) ni->ni_iv32;
117 *iv++ = (a_uint8_t) tmp;
118 *iv++ = (a_uint8_t) (tmp >> 8);
120 tmp = (a_uint16_t) (ni->ni_iv32 >> 16);
121 *iv++ = (a_uint8_t) tmp;
122 *iv = (a_uint8_t) (tmp >> 8);
130 #undef CRYPTO_KEY_TYPE_TKIP
131 #undef CRYPTO_KEY_TYPE_AES
132 #undef CRYPTO_KEY_TYPE_WAPI
133 #undef IEEE80211_WLAN_HDR_LEN
135 #undef IEEE80211_ADDR_LEN