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Staging: otus: zfTkipInit(): increment another pointer
[net-next-2.6.git] / drivers / staging / otus / 80211core / ctkip.c
CommitLineData
4bd43f50
LR		 1/*
2 * Copyright (c) 2007-2008 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16/* */
17/* Module Name : ctkip.c */
18/* */
19/* Abstract */
20/* This module contains Tx and Rx functions. */
21/* */
22/* NOTES */
23/* None */
24/* */
25/************************************************************************/
26#include "cprecomp.h"
27
28u16_t zgTkipSboxLower[256] =
29 {
30 0xA5,0x84,0x99,0x8D,0x0D,0xBD,0xB1,0x54,
31 0x50,0x03,0xA9,0x7D,0x19,0x62,0xE6,0x9A,
32 0x45,0x9D,0x40,0x87,0x15,0xEB,0xC9,0x0B,
33 0xEC,0x67,0xFD,0xEA,0xBF,0xF7,0x96,0x5B,
34 0xC2,0x1C,0xAE,0x6A,0x5A,0x41,0x02,0x4F,
35 0x5C,0xF4,0x34,0x08,0x93,0x73,0x53,0x3F,
36 0x0C,0x52,0x65,0x5E,0x28,0xA1,0x0F,0xB5,
37 0x09,0x36,0x9B,0x3D,0x26,0x69,0xCD,0x9F,
38 0x1B,0x9E,0x74,0x2E,0x2D,0xB2,0xEE,0xFB,
39 0xF6,0x4D,0x61,0xCE,0x7B,0x3E,0x71,0x97,
40 0xF5,0x68,0x00,0x2C,0x60,0x1F,0xC8,0xED,
41 0xBE,0x46,0xD9,0x4B,0xDE,0xD4,0xE8,0x4A,
42 0x6B,0x2A,0xE5,0x16,0xC5,0xD7,0x55,0x94,
43 0xCF,0x10,0x06,0x81,0xF0,0x44,0xBA,0xE3,
44 0xF3,0xFE,0xC0,0x8A,0xAD,0xBC,0x48,0x04,
45 0xDF,0xC1,0x75,0x63,0x30,0x1A,0x0E,0x6D,
46 0x4C,0x14,0x35,0x2F,0xE1,0xA2,0xCC,0x39,
47 0x57,0xF2,0x82,0x47,0xAC,0xE7,0x2B,0x95,
48 0xA0,0x98,0xD1,0x7F,0x66,0x7E,0xAB,0x83,
49 0xCA,0x29,0xD3,0x3C,0x79,0xE2,0x1D,0x76,
50 0x3B,0x56,0x4E,0x1E,0xDB,0x0A,0x6C,0xE4,
51 0x5D,0x6E,0xEF,0xA6,0xA8,0xA4,0x37,0x8B,
52 0x32,0x43,0x59,0xB7,0x8C,0x64,0xD2,0xE0,
53 0xB4,0xFA,0x07,0x25,0xAF,0x8E,0xE9,0x18,
54 0xD5,0x88,0x6F,0x72,0x24,0xF1,0xC7,0x51,
55 0x23,0x7C,0x9C,0x21,0xDD,0xDC,0x86,0x85,
56 0x90,0x42,0xC4,0xAA,0xD8,0x05,0x01,0x12,
57 0xA3,0x5F,0xF9,0xD0,0x91,0x58,0x27,0xB9,
58 0x38,0x13,0xB3,0x33,0xBB,0x70,0x89,0xA7,
59 0xB6,0x22,0x92,0x20,0x49,0xFF,0x78,0x7A,
60 0x8F,0xF8,0x80,0x17,0xDA,0x31,0xC6,0xB8,
61 0xC3,0xB0,0x77,0x11,0xCB,0xFC,0xD6,0x3A
62 };
63
64
65u16_t zgTkipSboxUpper[256] =
66 {
67 0xC6,0xF8,0xEE,0xF6,0xFF,0xD6,0xDE,0x91,
68 0x60,0x02,0xCE,0x56,0xE7,0xB5,0x4D,0xEC,
69 0x8F,0x1F,0x89,0xFA,0xEF,0xB2,0x8E,0xFB,
70 0x41,0xB3,0x5F,0x45,0x23,0x53,0xE4,0x9B,
71 0x75,0xE1,0x3D,0x4C,0x6C,0x7E,0xF5,0x83,
72 0x68,0x51,0xD1,0xF9,0xE2,0xAB,0x62,0x2A,
73 0x08,0x95,0x46,0x9D,0x30,0x37,0x0A,0x2F,
74 0x0E,0x24,0x1B,0xDF,0xCD,0x4E,0x7F,0xEA,
75 0x12,0x1D,0x58,0x34,0x36,0xDC,0xB4,0x5B,
76 0xA4,0x76,0xB7,0x7D,0x52,0xDD,0x5E,0x13,
77 0xA6,0xB9,0x00,0xC1,0x40,0xE3,0x79,0xB6,
78 0xD4,0x8D,0x67,0x72,0x94,0x98,0xB0,0x85,
79 0xBB,0xC5,0x4F,0xED,0x86,0x9A,0x66,0x11,
80 0x8A,0xE9,0x04,0xFE,0xA0,0x78,0x25,0x4B,
81 0xA2,0x5D,0x80,0x05,0x3F,0x21,0x70,0xF1,
82 0x63,0x77,0xAF,0x42,0x20,0xE5,0xFD,0xBF,
83 0x81,0x18,0x26,0xC3,0xBE,0x35,0x88,0x2E,
84 0x93,0x55,0xFC,0x7A,0xC8,0xBA,0x32,0xE6,
85 0xC0,0x19,0x9E,0xA3,0x44,0x54,0x3B,0x0B,
86 0x8C,0xC7,0x6B,0x28,0xA7,0xBC,0x16,0xAD,
87 0xDB,0x64,0x74,0x14,0x92,0x0C,0x48,0xB8,
88 0x9F,0xBD,0x43,0xC4,0x39,0x31,0xD3,0xF2,
89 0xD5,0x8B,0x6E,0xDA,0x01,0xB1,0x9C,0x49,
90 0xD8,0xAC,0xF3,0xCF,0xCA,0xF4,0x47,0x10,
91 0x6F,0xF0,0x4A,0x5C,0x38,0x57,0x73,0x97,
92 0xCB,0xA1,0xE8,0x3E,0x96,0x61,0x0D,0x0F,
93 0xE0,0x7C,0x71,0xCC,0x90,0x06,0xF7,0x1C,
94 0xC2,0x6A,0xAE,0x69,0x17,0x99,0x3A,0x27,
95 0xD9,0xEB,0x2B,0x22,0xD2,0xA9,0x07,0x33,
96 0x2D,0x3C,0x15,0xC9,0x87,0xAA,0x50,0xA5,
97 0x03,0x59,0x09,0x1A,0x65,0xD7,0x84,0xD0,
98 0x82,0x29,0x5A,0x1E,0x7B,0xA8,0x6D,0x2C
99 };
100
101u16_t zfrotr1(u16_t a)
102// rotate right by 1 bit.
103{
104 u16_t b;
105
106 if (a & 0x01)
107 {
108 b = (a >> 1) | 0x8000;
109 }
110 else
111 {
112 b = (a >> 1) & 0x7fff;
113 }
114 return b;
115}
116
117/*************************************************************/
118/* zfTkipSbox() */
119/* Returns a 16 bit value from a 64K entry table. The Table */
120/* is synthesized from two 256 entry byte wide tables. */
121/*************************************************************/
122u16_t zfTkipSbox(u16_t index)
123{
124 u16_t low;
125 u16_t high;
126 u16_t left, right;
127
128 low = (index & 0xFF);
129 high = ((index >> 8) & 0xFF);
130
131 left = zgTkipSboxLower[low] + (zgTkipSboxUpper[low] << 8 );
132 right = zgTkipSboxUpper[high] + (zgTkipSboxLower[high] << 8 );
133
134 return (left ^ right);
135}
136
137u8_t zfTkipPhase1KeyMix(u32_t iv32, struct zsTkipSeed* pSeed)
138{
139 u16_t tsc0;
140 u16_t tsc1;
141 u16_t i, j;
142#if 0
143 /* Need not proceed this function with the same iv32 */
144 if ( iv32 == pSeed->iv32 )
145 {
146 return 1;
147 }
148#endif
149 tsc0 = (u16_t) ((iv32 >> 16) & 0xffff); /* msb */
150 tsc1 = (u16_t) (iv32 & 0xffff);
151
152 /* Phase 1, step 1 */
153 pSeed->ttak[0] = tsc1;
154 pSeed->ttak[1] = tsc0;
155 pSeed->ttak[2] = (u16_t) (pSeed->ta[0] + (pSeed->ta[1] <<8));
156 pSeed->ttak[3] = (u16_t) (pSeed->ta[2] + (pSeed->ta[3] <<8));
157 pSeed->ttak[4] = (u16_t) (pSeed->ta[4] + (pSeed->ta[5] <<8));
158
159 /* Phase 1, step 2 */
160 for (i=0; i<8; i++)
161 {
162 j = 2*(i & 1);
163 pSeed->ttak[0] =(pSeed->ttak[0] + zfTkipSbox(pSeed->ttak[4]
164 ^ ZM_BYTE_TO_WORD(pSeed->tk[1+j], pSeed->tk[j])))
165 & 0xffff;
166 pSeed->ttak[1] =(pSeed->ttak[1] + zfTkipSbox(pSeed->ttak[0]
167 ^ ZM_BYTE_TO_WORD(pSeed->tk[5+j], pSeed->tk[4+j] )))
168 & 0xffff;
169 pSeed->ttak[2] =(pSeed->ttak[2] + zfTkipSbox(pSeed->ttak[1]
170 ^ ZM_BYTE_TO_WORD(pSeed->tk[9+j], pSeed->tk[8+j] )))
171 & 0xffff;
172 pSeed->ttak[3] =(pSeed->ttak[3] + zfTkipSbox(pSeed->ttak[2]
173 ^ ZM_BYTE_TO_WORD(pSeed->tk[13+j], pSeed->tk[12+j])))
174 & 0xffff;
175 pSeed->ttak[4] =(pSeed->ttak[4] + zfTkipSbox(pSeed->ttak[3]
176 ^ ZM_BYTE_TO_WORD(pSeed->tk[1+j], pSeed->tk[j] )))
177 & 0xffff;
178 pSeed->ttak[4] =(pSeed->ttak[4] + i) & 0xffff;
179 }
180
181 if ( iv32 == (pSeed->iv32+1) )
182 {
183 pSeed->iv32tmp = iv32;
184 return 1;
185 }
186
187 return 0;
188}
189
190u8_t zfTkipPhase2KeyMix(u16_t iv16, struct zsTkipSeed* pSeed)
191{
192 u16_t tsc2;
193
194 tsc2 = iv16;
195
196 /* Phase 2, Step 1 */
197 pSeed->ppk[0] = pSeed->ttak[0];
198 pSeed->ppk[1] = pSeed->ttak[1];
199 pSeed->ppk[2] = pSeed->ttak[2];
200 pSeed->ppk[3] = pSeed->ttak[3];
201 pSeed->ppk[4] = pSeed->ttak[4];
202 pSeed->ppk[5] = (pSeed->ttak[4] + tsc2) & 0xffff;
203
204 /* Phase2, Step 2 */
205 pSeed->ppk[0] = pSeed->ppk[0]
206 + zfTkipSbox(pSeed->ppk[5] ^ ZM_BYTE_TO_WORD(pSeed->tk[1],pSeed->tk[0]));
207 pSeed->ppk[1] = pSeed->ppk[1]
208 + zfTkipSbox(pSeed->ppk[0] ^ ZM_BYTE_TO_WORD(pSeed->tk[3],pSeed->tk[2]));
209 pSeed->ppk[2] = pSeed->ppk[2]
210 + zfTkipSbox(pSeed->ppk[1] ^ ZM_BYTE_TO_WORD(pSeed->tk[5],pSeed->tk[4]));
211 pSeed->ppk[3] = pSeed->ppk[3]
212 + zfTkipSbox(pSeed->ppk[2] ^ ZM_BYTE_TO_WORD(pSeed->tk[7],pSeed->tk[6]));
213 pSeed->ppk[4] = pSeed->ppk[4]
214 + zfTkipSbox(pSeed->ppk[3] ^ ZM_BYTE_TO_WORD(pSeed->tk[9],pSeed->tk[8]));
215 pSeed->ppk[5] = pSeed->ppk[5]
216 + zfTkipSbox(pSeed->ppk[4] ^ ZM_BYTE_TO_WORD(pSeed->tk[11],pSeed->tk[10]));
217
218 pSeed->ppk[0] = pSeed->ppk[0]
219 + zfrotr1(pSeed->ppk[5] ^ ZM_BYTE_TO_WORD(pSeed->tk[13],pSeed->tk[12]));
220 pSeed->ppk[1] = pSeed->ppk[1]
221 + zfrotr1(pSeed->ppk[0] ^ ZM_BYTE_TO_WORD(pSeed->tk[15],pSeed->tk[14]));
222 pSeed->ppk[2] = pSeed->ppk[2] + zfrotr1(pSeed->ppk[1]);
223 pSeed->ppk[3] = pSeed->ppk[3] + zfrotr1(pSeed->ppk[2]);
224 pSeed->ppk[4] = pSeed->ppk[4] + zfrotr1(pSeed->ppk[3]);
225 pSeed->ppk[5] = pSeed->ppk[5] + zfrotr1(pSeed->ppk[4]);
226
227 if (iv16 == 0)
228 {
229 if (pSeed->iv16 == 0xffff)
230 {
231 pSeed->iv16tmp=0;
232 return 1;
233 }
234 else
235 return 0;
236 }
237 else if (iv16 == (pSeed->iv16+1))
238 {
239 pSeed->iv16tmp = iv16;
240 return 1;
241 }
242 else
243 return 0;
244}
245
246void zfTkipInit(u8_t* key, u8_t* ta, struct zsTkipSeed* pSeed, u8_t* initIv)
247{
248 u16_t iv16;
249 u32_t iv32;
250 u16_t i;
251
252 /* clear memory */
253 zfZeroMemory((u8_t*) pSeed, sizeof(struct zsTkipSeed));
254 /* set key to seed */
255 zfMemoryCopy(pSeed->ta, ta, 6);
256 zfMemoryCopy(pSeed->tk, key, 16);
257
0daa04a5
SH		 258 iv16 = *initIv;
259 initIv++;
4bd43f50
LR		 260 iv16 += *initIv<<8;
261 initIv++;
262
263 iv32=0;
264
265 for(i=0; i<4; i++) // initiv is little endian
266 {
267 iv32 += *initIv<<(i*8);
0daa04a5 268 initIv++;
4bd43f50
LR		 269 }
270
271 pSeed->iv32 = iv32+1; // Force Recalculating on Tkip Phase1
272 zfTkipPhase1KeyMix(iv32, pSeed);
273
274 pSeed->iv16 = iv16;
275 pSeed->iv32 = iv32;
276}
277
278u32_t zfGetU32t(u8_t* p)
279{
280 u32_t res=0;
281 u16_t i;
282
283 for( i=0; i<4; i++ )
284 {
285 res |= (*p++) << (8*i);
286 }
287
288 return res;
289
290}
291
292void zfPutU32t(u8_t* p, u32_t value)
293{
294 u16_t i;
295
296 for(i=0; i<4; i++)
297 {
298 *p++ = (u8_t) (value & 0xff);
299 value >>= 8;
300 }
301}
302
303void zfMicClear(struct zsMicVar* pMic)
304{
305 pMic->left = pMic->k0;
306 pMic->right = pMic->k1;
307 pMic->nBytes = 0;
308 pMic->m = 0;
309}
310
311void zfMicSetKey(u8_t* key, struct zsMicVar* pMic)
312{
313 pMic->k0 = zfGetU32t(key);
314 pMic->k1 = zfGetU32t(key+4);
315 zfMicClear(pMic);
316}
317
318void zfMicAppendByte(u8_t b, struct zsMicVar* pMic)
319{
320 // Append the byte to our word-sized buffer
321 pMic->m |= b << (8* pMic->nBytes);
322 pMic->nBytes++;
323
324 // Process the word if it is full.
325 if ( pMic->nBytes >= 4 )
326 {
327 pMic->left ^= pMic->m;
328 pMic->right ^= ZM_ROL32(pMic->left, 17 );
329 pMic->left += pMic->right;
330 pMic->right ^= ((pMic->left & 0xff00ff00) >> 8) |
331 ((pMic->left & 0x00ff00ff) << 8);
332 pMic->left += pMic->right;
333 pMic->right ^= ZM_ROL32( pMic->left, 3 );
334 pMic->left += pMic->right;
335 pMic->right ^= ZM_ROR32( pMic->left, 2 );
336 pMic->left += pMic->right;
337 // Clear the buffer
338 pMic->m = 0;
339 pMic->nBytes = 0;
340 }
341}
342
343void zfMicGetMic(u8_t* dst, struct zsMicVar* pMic)
344{
345 // Append the minimum padding
346 zfMicAppendByte(0x5a, pMic);
347 zfMicAppendByte(0, pMic);
348 zfMicAppendByte(0, pMic);
349 zfMicAppendByte(0, pMic);
350 zfMicAppendByte(0, pMic);
351
352 // and then zeroes until the length is a multiple of 4
353 while( pMic->nBytes != 0 )
354 {
355 zfMicAppendByte(0, pMic);
356 }
357
358 // The appendByte function has already computed the result.
359 zfPutU32t(dst, pMic->left);
360 zfPutU32t(dst+4, pMic->right);
361
362 // Reset to the empty message.
363 zfMicClear(pMic);
364
365}
366
367u8_t zfMicRxVerify(zdev_t* dev, zbuf_t* buf)
368{
369 struct zsMicVar* pMicKey;
370 struct zsMicVar MyMicKey;
371 u8_t mic[8];
372 u8_t da[6];
373 u8_t sa[6];
374 u8_t bValue;
375 u16_t i, payloadOffset, tailOffset;
376
377 zmw_get_wlan_dev(dev);
378
379 /* need not check MIC if pMicKEy is equal to NULL */
380 if ( wd->wlanMode == ZM_MODE_AP )
381 {
382 pMicKey = zfApGetRxMicKey(dev, buf);
383
384 if ( pMicKey != NULL )
385 {
386 zfCopyFromRxBuffer(dev, buf, sa, ZM_WLAN_HEADER_A2_OFFSET, 6);
387 zfCopyFromRxBuffer(dev, buf, da, ZM_WLAN_HEADER_A3_OFFSET, 6);
388 }
389 else
390 {
391 return ZM_MIC_SUCCESS;
392 }
393 }
394 else if ( wd->wlanMode == ZM_MODE_INFRASTRUCTURE )
395 {
396 pMicKey = zfStaGetRxMicKey(dev, buf);
397
398 if ( pMicKey != NULL )
399 {
400 zfCopyFromRxBuffer(dev, buf, sa, ZM_WLAN_HEADER_A3_OFFSET, 6);
401 zfCopyFromRxBuffer(dev, buf, da, ZM_WLAN_HEADER_A1_OFFSET, 6);
402 }
403 else
404 {
405 return ZM_MIC_SUCCESS;
406 }
407 }
408 else
409 {
410 return ZM_MIC_SUCCESS;
411 }
412
413 MyMicKey.k0=pMicKey->k0;
414 MyMicKey.k1=pMicKey->k1;
415 pMicKey = &MyMicKey;
416
417 zfMicClear(pMicKey);
418 tailOffset = zfwBufGetSize(dev, buf);
419 tailOffset -= 8;
420
421 /* append DA */
422 for(i=0; i<6; i++)
423 {
424 zfMicAppendByte(da[i], pMicKey);
425 }
426 /* append SA */
427 for(i=0; i<6; i++)
428 {
429 zfMicAppendByte(sa[i], pMicKey);
430 }
431
432 /* append for alignment */
433 if ((zmw_rx_buf_readb(dev, buf, 0) & 0x80) != 0)
434 zfMicAppendByte(zmw_rx_buf_readb(dev, buf,24)&0x7, pMicKey);
435 else
436 zfMicAppendByte(0, pMicKey);
437 zfMicAppendByte(0, pMicKey);
438 zfMicAppendByte(0, pMicKey);
439 zfMicAppendByte(0, pMicKey);
440
441 /* append payload */
442 payloadOffset = ZM_SIZE_OF_WLAN_DATA_HEADER +
443 ZM_SIZE_OF_IV +
444 ZM_SIZE_OF_EXT_IV;
445
446 if ((zmw_rx_buf_readb(dev, buf, 0) & 0x80) != 0)
447 {
448 /* Qos Packet, Plcpheader + 2 */
449 if (wd->wlanMode == ZM_MODE_AP)
450 {
451 /* TODO : Rx Qos element offset in software MIC check */
452 }
453 else if (wd->wlanMode == ZM_MODE_INFRASTRUCTURE)
454 {
455 if (wd->sta.wmeConnected != 0)
456 {
457 payloadOffset += 2;
458 }
459 }
460 }
461
462 for(i=payloadOffset; i<tailOffset; i++)
463 {
464 bValue = zmw_rx_buf_readb(dev, buf, i);
465 zfMicAppendByte(bValue, pMicKey);
466 }
467
468 zfMicGetMic(mic, pMicKey);
469
470 if ( !zfRxBufferEqualToStr(dev, buf, mic, tailOffset, 8) )
471 {
472 return ZM_MIC_FAILURE;
473 }
474
475 return ZM_MIC_SUCCESS;
476}
477
478void zfTkipGetseeds(u16_t iv16, u8_t *RC4Key, struct zsTkipSeed *Seed)
479{
480 RC4Key[0] = ZM_HI8(iv16);
481 RC4Key[1] = (ZM_HI8(iv16) | 0x20) & 0x7f;
482 RC4Key[2] = ZM_LO8(iv16);
483 RC4Key[3] = ((Seed->ppk[5] ^ ZM_BYTE_TO_WORD(Seed->tk[1],Seed->tk[0]))>>1) & 0xff;
484 RC4Key[4] = Seed->ppk[0] & 0xff;
485 RC4Key[5] = Seed->ppk[0] >> 8;
486 RC4Key[6] = Seed->ppk[1] & 0xff;
487 RC4Key[7] = Seed->ppk[1] >> 8;
488 RC4Key[8] = Seed->ppk[2] & 0xff;
489 RC4Key[9] = Seed->ppk[2] >> 8;
490 RC4Key[10] = Seed->ppk[3] & 0xff;
491 RC4Key[11] = Seed->ppk[3] >> 8;
492 RC4Key[12] = Seed->ppk[4] & 0xff;
493 RC4Key[13] = Seed->ppk[4] >> 8;
494 RC4Key[14] = Seed->ppk[5] & 0xff;
495 RC4Key[15] = Seed->ppk[5] >> 8;
496}
497
498void zfCalTxMic(zdev_t *dev, zbuf_t *buf, u8_t *snap, u16_t snapLen, u16_t offset, u16_t *da, u16_t *sa, u8_t up, u8_t *mic)
499{
500 struct zsMicVar* pMicKey;
501 u16_t i;
502 u16_t len;
503 u8_t bValue;
504 u8_t qosType;
505 u8_t *pDa = (u8_t *)da;
506 u8_t *pSa = (u8_t *)sa;
507
508 zmw_get_wlan_dev(dev);
509
510 /* need not check MIC if pMicKEy is equal to NULL */
511 if ( wd->wlanMode == ZM_MODE_AP )
512 {
513 pMicKey = zfApGetTxMicKey(dev, buf, &qosType);
514
515 if ( pMicKey == NULL )
516 return;
517 }
518 else if ( wd->wlanMode == ZM_MODE_INFRASTRUCTURE )
519 {
520 pMicKey = zfStaGetTxMicKey(dev, buf);
521
522 if ( pMicKey == NULL )
523 {
524 zm_debug_msg0("pMicKey is NULL");
525 return;
526 }
527 }
528 else
529 {
530 return;
531 }
532
533 zfMicClear(pMicKey);
534 len = zfwBufGetSize(dev, buf);
535
536 /* append DA */
537 for(i = 0; i < 6; i++)
538 {
539 zfMicAppendByte(pDa[i], pMicKey);
540 }
541
542 /* append SA */
543 for(i = 0; i < 6; i++)
544 {
545 zfMicAppendByte(pSa[i], pMicKey);
546 }
547
548 if (up != 0)
549 zfMicAppendByte((up&0x7), pMicKey);
550 else
551 zfMicAppendByte(0, pMicKey);
552
553 zfMicAppendByte(0, pMicKey);
554 zfMicAppendByte(0, pMicKey);
555 zfMicAppendByte(0, pMicKey);
556
557 /* For Snap header */
558 for(i = 0; i < snapLen; i++)
559 {
560 zfMicAppendByte(snap[i], pMicKey);
561 }
562
563 for(i = offset; i < len; i++)
564 {
565 bValue = zmw_tx_buf_readb(dev, buf, i);
566 zfMicAppendByte(bValue, pMicKey);
567 }
568
569 zfMicGetMic(mic, pMicKey);
570}
571
572void zfTKIPEncrypt(zdev_t *dev, zbuf_t *buf, u8_t *snap, u16_t snapLen, u16_t offset, u8_t keyLen, u8_t* key, u32_t* icv)
573{
574 u8_t iv[3];
575
576 iv[0] = key[0];
577 iv[1] = key[1];
578 iv[2] = key[2];
579
580 keyLen -= 3;
581
582 zfWEPEncrypt(dev, buf, snap, snapLen, offset, keyLen, &key[3], iv);
583}
584
585u16_t zfTKIPDecrypt(zdev_t *dev, zbuf_t *buf, u16_t offset, u8_t keyLen, u8_t* key)
586{
587 u16_t ret = ZM_ICV_SUCCESS;
588 u8_t iv[3];
589
590 iv[0] = key[0];
591 iv[1] = key[1];
592 iv[2] = key[2];
593
594 keyLen -= 3;
595
596 ret = zfWEPDecrypt(dev, buf, offset, keyLen, &key[3], iv);
597
598 return ret;
599}
Clone of davem's net-next-2.6 tree