Blame view
net/mac80211/tkip.c
11.8 KB
f0706e828 [MAC80211]: Add m... |
1 2 3 4 5 6 7 8 |
/* * Copyright 2002-2004, Instant802 Networks, Inc. * Copyright 2005, Devicescape Software, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ |
f0706e828 [MAC80211]: Add m... |
9 |
#include <linux/kernel.h> |
8c046c8c6 mac80211: tkip.c ... |
10 |
#include <linux/bitops.h> |
f0706e828 [MAC80211]: Add m... |
11 12 |
#include <linux/types.h> #include <linux/netdevice.h> |
bc3b2d7fb net: Add export.h... |
13 |
#include <linux/export.h> |
8c046c8c6 mac80211: tkip.c ... |
14 |
#include <asm/unaligned.h> |
f0706e828 [MAC80211]: Add m... |
15 16 |
#include <net/mac80211.h> |
244879813 mac80211: add dri... |
17 |
#include "driver-ops.h" |
2c8dccc77 mac80211: rename ... |
18 |
#include "key.h" |
f0706e828 [MAC80211]: Add m... |
19 20 |
#include "tkip.h" #include "wep.h" |
f0706e828 [MAC80211]: Add m... |
21 |
#define PHASE1_LOOP_COUNT 8 |
8c046c8c6 mac80211: tkip.c ... |
22 23 24 25 |
/* * 2-byte by 2-byte subset of the full AES S-box table; second part of this * table is identical to first part but byte-swapped */ |
f0706e828 [MAC80211]: Add m... |
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 |
static const u16 tkip_sbox[256] = { 0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154, 0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A, 0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B, 0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B, 0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F, 0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F, 0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5, 0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F, 0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB, 0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397, 0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED, 0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A, 0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194, 0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3, 0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104, 0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D, 0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39, 0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695, 0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83, 0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76, 0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4, 0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B, 0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0, 0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018, 0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751, 0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85, 0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12, 0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9, 0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7, 0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A, 0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8, 0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A, }; |
8c046c8c6 mac80211: tkip.c ... |
61 |
static u16 tkipS(u16 val) |
f0706e828 [MAC80211]: Add m... |
62 |
{ |
8c046c8c6 mac80211: tkip.c ... |
63 |
return tkip_sbox[val & 0xff] ^ swab16(tkip_sbox[val >> 8]); |
f0706e828 [MAC80211]: Add m... |
64 |
} |
c801242c3 mac80211: tkip.c ... |
65 66 67 68 69 70 71 |
static u8 *write_tkip_iv(u8 *pos, u16 iv16) { *pos++ = iv16 >> 8; *pos++ = ((iv16 >> 8) | 0x20) & 0x7f; *pos++ = iv16 & 0xFF; return pos; } |
8c046c8c6 mac80211: tkip.c ... |
72 73 |
/* * P1K := Phase1(TA, TK, TSC) |
f0706e828 [MAC80211]: Add m... |
74 75 76 77 78 |
* TA = transmitter address (48 bits) * TK = dot11DefaultKeyValue or dot11KeyMappingValue (128 bits) * TSC = TKIP sequence counter (48 bits, only 32 msb bits used) * P1K: 80 bits */ |
7c70537f9 mac80211: tkip.c ... |
79 80 |
static void tkip_mixing_phase1(const u8 *tk, struct tkip_ctx *ctx, const u8 *ta, u32 tsc_IV32) |
f0706e828 [MAC80211]: Add m... |
81 82 |
{ int i, j; |
82a57447f mac80211: tkip.c ... |
83 |
u16 *p1k = ctx->p1k; |
f0706e828 [MAC80211]: Add m... |
84 |
|
8c046c8c6 mac80211: tkip.c ... |
85 86 87 88 89 |
p1k[0] = tsc_IV32 & 0xFFFF; p1k[1] = tsc_IV32 >> 16; p1k[2] = get_unaligned_le16(ta + 0); p1k[3] = get_unaligned_le16(ta + 2); p1k[4] = get_unaligned_le16(ta + 4); |
f0706e828 [MAC80211]: Add m... |
90 91 92 |
for (i = 0; i < PHASE1_LOOP_COUNT; i++) { j = 2 * (i & 1); |
8c046c8c6 mac80211: tkip.c ... |
93 94 95 96 97 |
p1k[0] += tkipS(p1k[4] ^ get_unaligned_le16(tk + 0 + j)); p1k[1] += tkipS(p1k[0] ^ get_unaligned_le16(tk + 4 + j)); p1k[2] += tkipS(p1k[1] ^ get_unaligned_le16(tk + 8 + j)); p1k[3] += tkipS(p1k[2] ^ get_unaligned_le16(tk + 12 + j)); p1k[4] += tkipS(p1k[3] ^ get_unaligned_le16(tk + 0 + j)) + i; |
f0706e828 [MAC80211]: Add m... |
98 |
} |
ca99861d5 mac80211 : fix a ... |
99 |
ctx->state = TKIP_STATE_PHASE1_DONE; |
523b02ea2 mac80211: fix TKI... |
100 |
ctx->p1k_iv32 = tsc_IV32; |
f0706e828 [MAC80211]: Add m... |
101 |
} |
7c70537f9 mac80211: tkip.c ... |
102 |
static void tkip_mixing_phase2(const u8 *tk, struct tkip_ctx *ctx, |
3c8380991 mac80211: tkip.c ... |
103 |
u16 tsc_IV16, u8 *rc4key) |
f0706e828 [MAC80211]: Add m... |
104 105 |
{ u16 ppk[6]; |
3c8380991 mac80211: tkip.c ... |
106 |
const u16 *p1k = ctx->p1k; |
f0706e828 [MAC80211]: Add m... |
107 108 109 110 111 112 113 114 |
int i; ppk[0] = p1k[0]; ppk[1] = p1k[1]; ppk[2] = p1k[2]; ppk[3] = p1k[3]; ppk[4] = p1k[4]; ppk[5] = p1k[4] + tsc_IV16; |
8c046c8c6 mac80211: tkip.c ... |
115 116 117 118 119 120 121 122 123 124 125 126 |
ppk[0] += tkipS(ppk[5] ^ get_unaligned_le16(tk + 0)); ppk[1] += tkipS(ppk[0] ^ get_unaligned_le16(tk + 2)); ppk[2] += tkipS(ppk[1] ^ get_unaligned_le16(tk + 4)); ppk[3] += tkipS(ppk[2] ^ get_unaligned_le16(tk + 6)); ppk[4] += tkipS(ppk[3] ^ get_unaligned_le16(tk + 8)); ppk[5] += tkipS(ppk[4] ^ get_unaligned_le16(tk + 10)); ppk[0] += ror16(ppk[5] ^ get_unaligned_le16(tk + 12), 1); ppk[1] += ror16(ppk[0] ^ get_unaligned_le16(tk + 14), 1); ppk[2] += ror16(ppk[1], 1); ppk[3] += ror16(ppk[2], 1); ppk[4] += ror16(ppk[3], 1); ppk[5] += ror16(ppk[4], 1); |
c801242c3 mac80211: tkip.c ... |
127 128 |
rc4key = write_tkip_iv(rc4key, tsc_IV16); *rc4key++ = ((ppk[5] ^ get_unaligned_le16(tk)) >> 1) & 0xFF; |
8c046c8c6 mac80211: tkip.c ... |
129 |
|
8c046c8c6 mac80211: tkip.c ... |
130 131 |
for (i = 0; i < 6; i++) put_unaligned_le16(ppk[i], rc4key + 2 * i); |
f0706e828 [MAC80211]: Add m... |
132 |
} |
f0706e828 [MAC80211]: Add m... |
133 134 135 |
/* Add TKIP IV and Ext. IV at @pos. @iv0, @iv1, and @iv2 are the first octets * of the IV. Returns pointer to the octet following IVs (i.e., beginning of * the packet payload). */ |
523b02ea2 mac80211: fix TKI... |
136 |
u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key) |
f0706e828 [MAC80211]: Add m... |
137 |
{ |
523b02ea2 mac80211: fix TKI... |
138 139 140 |
lockdep_assert_held(&key->u.tkip.txlock); pos = write_tkip_iv(pos, key->u.tkip.tx.iv16); |
8f20fc249 [MAC80211]: embed... |
141 |
*pos++ = (key->conf.keyidx << 6) | (1 << 5) /* Ext IV */; |
b0f76b335 mac80211: add a s... |
142 |
put_unaligned_le32(key->u.tkip.tx.iv32, pos); |
8c046c8c6 mac80211: tkip.c ... |
143 |
return pos + 4; |
f0706e828 [MAC80211]: Add m... |
144 |
} |
523b02ea2 mac80211: fix TKI... |
145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 |
static void ieee80211_compute_tkip_p1k(struct ieee80211_key *key, u32 iv32) { struct ieee80211_sub_if_data *sdata = key->sdata; struct tkip_ctx *ctx = &key->u.tkip.tx; const u8 *tk = &key->conf.key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY]; lockdep_assert_held(&key->u.tkip.txlock); /* * Update the P1K when the IV32 is different from the value it * had when we last computed it (or when not initialised yet). * This might flip-flop back and forth if packets are processed * out-of-order due to the different ACs, but then we have to * just compute the P1K more often. */ if (ctx->p1k_iv32 != iv32 || ctx->state == TKIP_STATE_NOT_INIT) tkip_mixing_phase1(tk, ctx, sdata->vif.addr, iv32); } |
42d987955 mac80211: allow d... |
163 164 |
void ieee80211_get_tkip_p1k_iv(struct ieee80211_key_conf *keyconf, u32 iv32, u16 *p1k) |
5d2cdcd4e mac80211: get a T... |
165 166 167 |
{ struct ieee80211_key *key = (struct ieee80211_key *) container_of(keyconf, struct ieee80211_key, conf); |
523b02ea2 mac80211: fix TKI... |
168 |
struct tkip_ctx *ctx = &key->u.tkip.tx; |
523b02ea2 mac80211: fix TKI... |
169 170 171 172 173 174 175 |
unsigned long flags; spin_lock_irqsave(&key->u.tkip.txlock, flags); ieee80211_compute_tkip_p1k(key, iv32); memcpy(p1k, ctx->p1k, sizeof(ctx->p1k)); spin_unlock_irqrestore(&key->u.tkip.txlock, flags); } |
42d987955 mac80211: allow d... |
176 |
EXPORT_SYMBOL(ieee80211_get_tkip_p1k_iv); |
5d2cdcd4e mac80211: get a T... |
177 |
|
8bca5d815 mac80211: allow d... |
178 179 180 181 182 183 184 185 186 187 |
void ieee80211_get_tkip_rx_p1k(struct ieee80211_key_conf *keyconf, const u8 *ta, u32 iv32, u16 *p1k) { const u8 *tk = &keyconf->key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY]; struct tkip_ctx ctx; tkip_mixing_phase1(tk, &ctx, ta, iv32); memcpy(p1k, ctx.p1k, sizeof(ctx.p1k)); } EXPORT_SYMBOL(ieee80211_get_tkip_rx_p1k); |
523b02ea2 mac80211: fix TKI... |
188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 |
void ieee80211_get_tkip_p2k(struct ieee80211_key_conf *keyconf, struct sk_buff *skb, u8 *p2k) { struct ieee80211_key *key = (struct ieee80211_key *) container_of(keyconf, struct ieee80211_key, conf); const u8 *tk = &key->conf.key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY]; struct tkip_ctx *ctx = &key->u.tkip.tx; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; const u8 *data = (u8 *)hdr + ieee80211_hdrlen(hdr->frame_control); u32 iv32 = get_unaligned_le32(&data[4]); u16 iv16 = data[2] | (data[0] << 8); unsigned long flags; spin_lock_irqsave(&key->u.tkip.txlock, flags); ieee80211_compute_tkip_p1k(key, iv32); tkip_mixing_phase2(tk, ctx, iv16, p2k); spin_unlock_irqrestore(&key->u.tkip.txlock, flags); |
5d2cdcd4e mac80211: get a T... |
205 |
} |
523b02ea2 mac80211: fix TKI... |
206 |
EXPORT_SYMBOL(ieee80211_get_tkip_p2k); |
5d2cdcd4e mac80211: get a T... |
207 |
|
813d76694 mac80211: move co... |
208 209 |
/* * Encrypt packet payload with TKIP using @key. @pos is a pointer to the |
f0706e828 [MAC80211]: Add m... |
210 |
* beginning of the buffer containing payload. This payload must include |
813d76694 mac80211: move co... |
211 212 213 214 |
* the IV/Ext.IV and space for (taildroom) four octets for ICV. * @payload_len is the length of payload (_not_ including IV/ICV length). * @ta is the transmitter addresses. */ |
5f9f1812b mac80211: remove ... |
215 |
int ieee80211_tkip_encrypt_data(struct crypto_cipher *tfm, |
3473187d2 mac80211: remove ... |
216 |
struct ieee80211_key *key, |
523b02ea2 mac80211: fix TKI... |
217 218 |
struct sk_buff *skb, u8 *payload, size_t payload_len) |
f0706e828 [MAC80211]: Add m... |
219 220 |
{ u8 rc4key[16]; |
7c70537f9 mac80211: tkip.c ... |
221 |
|
523b02ea2 mac80211: fix TKI... |
222 |
ieee80211_get_tkip_p2k(&key->conf, skb, rc4key); |
f0706e828 [MAC80211]: Add m... |
223 |
|
523b02ea2 mac80211: fix TKI... |
224 225 |
return ieee80211_wep_encrypt_data(tfm, rc4key, 16, payload, payload_len); |
f0706e828 [MAC80211]: Add m... |
226 |
} |
f0706e828 [MAC80211]: Add m... |
227 228 229 230 |
/* Decrypt packet payload with TKIP using @key. @pos is a pointer to the * beginning of the buffer containing IEEE 802.11 header payload, i.e., * including IV, Ext. IV, real data, Michael MIC, ICV. @payload_len is the * length of payload, including IV, Ext. IV, MIC, ICV. */ |
5f9f1812b mac80211: remove ... |
231 |
int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, |
f0706e828 [MAC80211]: Add m... |
232 233 |
struct ieee80211_key *key, u8 *payload, size_t payload_len, u8 *ta, |
9ae4fda33 mac80211: allows ... |
234 |
u8 *ra, int only_iv, int queue, |
50741ae05 [PATCH] mac80211:... |
235 |
u32 *out_iv32, u16 *out_iv16) |
f0706e828 [MAC80211]: Add m... |
236 237 238 239 240 |
{ u32 iv32; u32 iv16; u8 rc4key[16], keyid, *pos = payload; int res; |
ffd7891dc mac80211: Let dri... |
241 |
const u8 *tk = &key->conf.key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY]; |
f0706e828 [MAC80211]: Add m... |
242 243 244 245 246 247 |
if (payload_len < 12) return -1; iv16 = (pos[0] << 8) | pos[2]; keyid = pos[3]; |
8c046c8c6 mac80211: tkip.c ... |
248 |
iv32 = get_unaligned_le32(pos + 4); |
f0706e828 [MAC80211]: Add m... |
249 |
pos += 8; |
9ae705cfd mac80211: rename ... |
250 |
#ifdef CONFIG_MAC80211_TKIP_DEBUG |
f0706e828 [MAC80211]: Add m... |
251 252 253 254 255 256 257 258 259 260 261 |
{ int i; printk(KERN_DEBUG "TKIP decrypt: data(len=%zd)", payload_len); for (i = 0; i < payload_len; i++) printk(" %02x", payload[i]); printk(" "); printk(KERN_DEBUG "TKIP decrypt: iv16=%04x iv32=%08x ", iv16, iv32); } |
9ae705cfd mac80211: rename ... |
262 |
#endif |
f0706e828 [MAC80211]: Add m... |
263 264 265 |
if (!(keyid & (1 << 5))) return TKIP_DECRYPT_NO_EXT_IV; |
8f20fc249 [MAC80211]: embed... |
266 |
if ((keyid >> 6) != key->conf.keyidx) |
f0706e828 [MAC80211]: Add m... |
267 |
return TKIP_DECRYPT_INVALID_KEYIDX; |
ca99861d5 mac80211 : fix a ... |
268 |
if (key->u.tkip.rx[queue].state != TKIP_STATE_NOT_INIT && |
b0f76b335 mac80211: add a s... |
269 270 271 |
(iv32 < key->u.tkip.rx[queue].iv32 || (iv32 == key->u.tkip.rx[queue].iv32 && iv16 <= key->u.tkip.rx[queue].iv16))) { |
9ae705cfd mac80211: rename ... |
272 |
#ifdef CONFIG_MAC80211_TKIP_DEBUG |
f0706e828 [MAC80211]: Add m... |
273 |
printk(KERN_DEBUG "TKIP replay detected for RX frame from " |
0c68ae260 mac80211: convert... |
274 275 276 |
"%pM (RX IV (%04x,%02x) <= prev. IV (%04x,%02x) ", ta, |
b0f76b335 mac80211: add a s... |
277 278 |
iv32, iv16, key->u.tkip.rx[queue].iv32, key->u.tkip.rx[queue].iv16); |
9ae705cfd mac80211: rename ... |
279 |
#endif |
f0706e828 [MAC80211]: Add m... |
280 281 282 283 284 |
return TKIP_DECRYPT_REPLAY; } if (only_iv) { res = TKIP_DECRYPT_OK; |
ca99861d5 mac80211 : fix a ... |
285 |
key->u.tkip.rx[queue].state = TKIP_STATE_PHASE1_HW_UPLOADED; |
f0706e828 [MAC80211]: Add m... |
286 287 |
goto done; } |
ca99861d5 mac80211 : fix a ... |
288 |
if (key->u.tkip.rx[queue].state == TKIP_STATE_NOT_INIT || |
b0f76b335 mac80211: add a s... |
289 |
key->u.tkip.rx[queue].iv32 != iv32) { |
f0706e828 [MAC80211]: Add m... |
290 |
/* IV16 wrapped around - perform TKIP phase 1 */ |
7c70537f9 mac80211: tkip.c ... |
291 |
tkip_mixing_phase1(tk, &key->u.tkip.rx[queue], ta, iv32); |
9ae705cfd mac80211: rename ... |
292 |
#ifdef CONFIG_MAC80211_TKIP_DEBUG |
f0706e828 [MAC80211]: Add m... |
293 294 |
{ int i; |
ffd7891dc mac80211: Let dri... |
295 |
u8 key_offset = NL80211_TKIP_DATA_OFFSET_ENCR_KEY; |
0c68ae260 mac80211: convert... |
296 297 |
printk(KERN_DEBUG "TKIP decrypt: Phase1 TA=%pM" " TK=", ta); |
f0706e828 [MAC80211]: Add m... |
298 299 |
for (i = 0; i < 16; i++) printk("%02x ", |
ffd7891dc mac80211: Let dri... |
300 |
key->conf.key[key_offset + i]); |
f0706e828 [MAC80211]: Add m... |
301 302 303 304 |
printk(" "); printk(KERN_DEBUG "TKIP decrypt: P1K="); for (i = 0; i < 5; i++) |
b0f76b335 mac80211: add a s... |
305 |
printk("%04x ", key->u.tkip.rx[queue].p1k[i]); |
f0706e828 [MAC80211]: Add m... |
306 307 308 |
printk(" "); } |
9ae705cfd mac80211: rename ... |
309 |
#endif |
ca99861d5 mac80211 : fix a ... |
310 311 312 313 |
} if (key->local->ops->update_tkip_key && key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && key->u.tkip.rx[queue].state != TKIP_STATE_PHASE1_HW_UPLOADED) { |
b3fbdcf49 mac80211: pass vi... |
314 |
struct ieee80211_sub_if_data *sdata = key->sdata; |
ca99861d5 mac80211 : fix a ... |
315 |
|
b3fbdcf49 mac80211: pass vi... |
316 317 318 319 |
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) sdata = container_of(key->sdata->bss, struct ieee80211_sub_if_data, u.ap); drv_update_tkip_key(key->local, sdata, &key->conf, key->sta, |
ca99861d5 mac80211 : fix a ... |
320 321 |
iv32, key->u.tkip.rx[queue].p1k); key->u.tkip.rx[queue].state = TKIP_STATE_PHASE1_HW_UPLOADED; |
f0706e828 [MAC80211]: Add m... |
322 |
} |
7c70537f9 mac80211: tkip.c ... |
323 |
tkip_mixing_phase2(tk, &key->u.tkip.rx[queue], iv16, rc4key); |
9ae705cfd mac80211: rename ... |
324 |
#ifdef CONFIG_MAC80211_TKIP_DEBUG |
f0706e828 [MAC80211]: Add m... |
325 326 327 328 329 330 331 332 |
{ int i; printk(KERN_DEBUG "TKIP decrypt: Phase2 rc4key="); for (i = 0; i < 16; i++) printk("%02x ", rc4key[i]); printk(" "); } |
9ae705cfd mac80211: rename ... |
333 |
#endif |
f0706e828 [MAC80211]: Add m... |
334 335 336 337 |
res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12); done: if (res == TKIP_DECRYPT_OK) { |
50741ae05 [PATCH] mac80211:... |
338 339 340 341 342 343 344 345 |
/* * Record previously received IV, will be copied into the * key information after MIC verification. It is possible * that we don't catch replays of fragments but that's ok * because the Michael MIC verication will then fail. */ *out_iv32 = iv32; *out_iv16 = iv16; |
f0706e828 [MAC80211]: Add m... |
346 347 348 349 |
} return res; } |