1 #ifdef CONFIG_WAPI_SUPPORT
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3 #include <linux/unistd.h>
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4 #include <linux/etherdevice.h>
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5 #include <drv_types.h>
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6 #include <rtw_wapi.h>
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9 #ifdef CONFIG_WAPI_SW_SMS4
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11 #define WAPI_LITTLE_ENDIAN
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12 //#define BIG_ENDIAN
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17 /**********************************************************
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18 **********************************************************/
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19 const u8 Sbox[256] = {
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20 0xd6,0x90,0xe9,0xfe,0xcc,0xe1,0x3d,0xb7,0x16,0xb6,0x14,0xc2,0x28,0xfb,0x2c,0x05,
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21 0x2b,0x67,0x9a,0x76,0x2a,0xbe,0x04,0xc3,0xaa,0x44,0x13,0x26,0x49,0x86,0x06,0x99,
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22 0x9c,0x42,0x50,0xf4,0x91,0xef,0x98,0x7a,0x33,0x54,0x0b,0x43,0xed,0xcf,0xac,0x62,
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23 0xe4,0xb3,0x1c,0xa9,0xc9,0x08,0xe8,0x95,0x80,0xdf,0x94,0xfa,0x75,0x8f,0x3f,0xa6,
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24 0x47,0x07,0xa7,0xfc,0xf3,0x73,0x17,0xba,0x83,0x59,0x3c,0x19,0xe6,0x85,0x4f,0xa8,
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25 0x68,0x6b,0x81,0xb2,0x71,0x64,0xda,0x8b,0xf8,0xeb,0x0f,0x4b,0x70,0x56,0x9d,0x35,
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26 0x1e,0x24,0x0e,0x5e,0x63,0x58,0xd1,0xa2,0x25,0x22,0x7c,0x3b,0x01,0x21,0x78,0x87,
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27 0xd4,0x00,0x46,0x57,0x9f,0xd3,0x27,0x52,0x4c,0x36,0x02,0xe7,0xa0,0xc4,0xc8,0x9e,
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28 0xea,0xbf,0x8a,0xd2,0x40,0xc7,0x38,0xb5,0xa3,0xf7,0xf2,0xce,0xf9,0x61,0x15,0xa1,
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29 0xe0,0xae,0x5d,0xa4,0x9b,0x34,0x1a,0x55,0xad,0x93,0x32,0x30,0xf5,0x8c,0xb1,0xe3,
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30 0x1d,0xf6,0xe2,0x2e,0x82,0x66,0xca,0x60,0xc0,0x29,0x23,0xab,0x0d,0x53,0x4e,0x6f,
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31 0xd5,0xdb,0x37,0x45,0xde,0xfd,0x8e,0x2f,0x03,0xff,0x6a,0x72,0x6d,0x6c,0x5b,0x51,
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32 0x8d,0x1b,0xaf,0x92,0xbb,0xdd,0xbc,0x7f,0x11,0xd9,0x5c,0x41,0x1f,0x10,0x5a,0xd8,
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33 0x0a,0xc1,0x31,0x88,0xa5,0xcd,0x7b,0xbd,0x2d,0x74,0xd0,0x12,0xb8,0xe5,0xb4,0xb0,
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34 0x89,0x69,0x97,0x4a,0x0c,0x96,0x77,0x7e,0x65,0xb9,0xf1,0x09,0xc5,0x6e,0xc6,0x84,
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35 0x18,0xf0,0x7d,0xec,0x3a,0xdc,0x4d,0x20,0x79,0xee,0x5f,0x3e,0xd7,0xcb,0x39,0x48
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38 const u32 CK[32] = {
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39 0x00070e15, 0x1c232a31, 0x383f464d, 0x545b6269,
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40 0x70777e85, 0x8c939aa1, 0xa8afb6bd, 0xc4cbd2d9,
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41 0xe0e7eef5, 0xfc030a11, 0x181f262d, 0x343b4249,
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42 0x50575e65, 0x6c737a81, 0x888f969d, 0xa4abb2b9,
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43 0xc0c7ced5, 0xdce3eaf1, 0xf8ff060d, 0x141b2229,
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44 0x30373e45, 0x4c535a61, 0x686f767d, 0x848b9299,
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45 0xa0a7aeb5, 0xbcc3cad1, 0xd8dfe6ed, 0xf4fb0209,
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46 0x10171e25, 0x2c333a41, 0x484f565d, 0x646b7279 };
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48 #define Rotl(_x, _y) (((_x) << (_y)) | ((_x) >> (32 - (_y))))
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50 #define ByteSub(_A) (Sbox[(_A) >> 24 & 0xFF] << 24 | \
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51 Sbox[(_A) >> 16 & 0xFF] << 16 | \
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52 Sbox[(_A) >> 8 & 0xFF] << 8 | \
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55 #define L1(_B) ((_B) ^ Rotl(_B, 2) ^ Rotl(_B, 10) ^ Rotl(_B, 18) ^ Rotl(_B, 24))
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56 #define L2(_B) ((_B) ^ Rotl(_B, 13) ^ Rotl(_B, 23))
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59 xor_block(void *dst, void *src1, void *src2)
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60 /* 128-bit xor: *dst = *src1 xor *src2. Pointers must be 32-bit aligned */
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62 ((u32 *)dst)[0] = ((u32 *)src1)[0] ^ ((u32 *)src2)[0];
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63 ((u32 *)dst)[1] = ((u32 *)src1)[1] ^ ((u32 *)src2)[1];
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64 ((u32 *)dst)[2] = ((u32 *)src1)[2] ^ ((u32 *)src2)[2];
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65 ((u32 *)dst)[3] = ((u32 *)src1)[3] ^ ((u32 *)src2)[3];
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69 void SMS4Crypt(u8 *Input, u8 *Output, u32 *rk)
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71 u32 r, mid, x0, x1, x2, x3, *p;
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77 #ifdef WAPI_LITTLE_ENDIAN
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78 x0 = Rotl(x0, 16); x0 = ((x0 & 0x00FF00FF) << 8) | ((x0 & 0xFF00FF00) >> 8);
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79 x1 = Rotl(x1, 16); x1 = ((x1 & 0x00FF00FF) << 8) | ((x1 & 0xFF00FF00) >> 8);
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80 x2 = Rotl(x2, 16); x2 = ((x2 & 0x00FF00FF) << 8) | ((x2 & 0xFF00FF00) >> 8);
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81 x3 = Rotl(x3, 16); x3 = ((x3 & 0x00FF00FF) << 8) | ((x3 & 0xFF00FF00) >> 8);
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83 for (r = 0; r < 32; r += 4)
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85 mid = x1 ^ x2 ^ x3 ^ rk[r + 0];
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88 mid = x2 ^ x3 ^ x0 ^ rk[r + 1];
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91 mid = x3 ^ x0 ^ x1 ^ rk[r + 2];
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94 mid = x0 ^ x1 ^ x2 ^ rk[r + 3];
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98 #ifdef WAPI_LITTLE_ENDIAN
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99 x0 = Rotl(x0, 16); x0 = ((x0 & 0x00FF00FF) << 8) | ((x0 & 0xFF00FF00) >> 8);
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100 x1 = Rotl(x1, 16); x1 = ((x1 & 0x00FF00FF) << 8) | ((x1 & 0xFF00FF00) >> 8);
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101 x2 = Rotl(x2, 16); x2 = ((x2 & 0x00FF00FF) << 8) | ((x2 & 0xFF00FF00) >> 8);
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102 x3 = Rotl(x3, 16); x3 = ((x3 & 0x00FF00FF) << 8) | ((x3 & 0xFF00FF00) >> 8);
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113 void SMS4KeyExt(u8 *Key, u32 *rk, u32 CryptFlag)
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115 u32 r, mid, x0, x1, x2, x3, *p;
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122 #ifdef WAPI_LITTLE_ENDIAN
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123 x0 = Rotl(x0, 16); x0 = ((x0 & 0xFF00FF) << 8) | ((x0 & 0xFF00FF00) >> 8);
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124 x1 = Rotl(x1, 16); x1 = ((x1 & 0xFF00FF) << 8) | ((x1 & 0xFF00FF00) >> 8);
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125 x2 = Rotl(x2, 16); x2 = ((x2 & 0xFF00FF) << 8) | ((x2 & 0xFF00FF00) >> 8);
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126 x3 = Rotl(x3, 16); x3 = ((x3 & 0xFF00FF) << 8) | ((x3 & 0xFF00FF00) >> 8);
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133 for (r = 0; r < 32; r += 4)
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135 mid = x1 ^ x2 ^ x3 ^ CK[r + 0];
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136 mid = ByteSub(mid);
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137 rk[r + 0] = x0 ^= L2(mid);
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138 mid = x2 ^ x3 ^ x0 ^ CK[r + 1];
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139 mid = ByteSub(mid);
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140 rk[r + 1] = x1 ^= L2(mid);
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141 mid = x3 ^ x0 ^ x1 ^ CK[r + 2];
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142 mid = ByteSub(mid);
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143 rk[r + 2] = x2 ^= L2(mid);
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144 mid = x0 ^ x1 ^ x2 ^ CK[r + 3];
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145 mid = ByteSub(mid);
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146 rk[r + 3] = x3 ^= L2(mid);
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148 if (CryptFlag == DECRYPT)
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150 for (r = 0; r < 16; r++)
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151 mid = rk[r], rk[r] = rk[31 - r], rk[31 - r] = mid;
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156 void WapiSMS4Cryption(u8 *Key, u8 *IV, u8 *Input, u16 InputLength,
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157 u8 *Output, u16 *OutputLength, u32 CryptFlag)
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159 u32 blockNum,i,j, rk[32];
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161 u8 blockIn[16],blockOut[16], tempIV[16], k;
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164 remainder = InputLength & 0x0F;
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165 blockNum = InputLength >> 4;
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172 tempIV[k] = IV[15-k];
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174 memcpy(blockIn, tempIV, 16);
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176 SMS4KeyExt((u8 *)Key, rk,CryptFlag);
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178 for(i=0; i<blockNum-1; i++)
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180 SMS4Crypt((u8 *)blockIn, blockOut, rk);
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181 xor_block(&Output[i*16], &Input[i*16], blockOut);
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182 memcpy(blockIn,blockOut,16);
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185 *OutputLength = i*16;
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187 SMS4Crypt((u8 *)blockIn, blockOut, rk);
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189 for(j=0; j<remainder; j++)
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191 Output[i*16+j] = Input[i*16+j] ^ blockOut[j];
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193 *OutputLength += remainder;
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197 void WapiSMS4Encryption(u8 *Key, u8 *IV, u8 *Input, u16 InputLength,
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198 u8 *Output, u16 *OutputLength)
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201 WapiSMS4Cryption(Key, IV, Input, InputLength, Output, OutputLength, ENCRYPT);
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204 void WapiSMS4Decryption(u8 *Key, u8 *IV, u8 *Input, u16 InputLength,
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205 u8 *Output, u16 *OutputLength)
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207 // OFB mode: is also ENCRYPT flag
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208 WapiSMS4Cryption(Key, IV, Input, InputLength, Output, OutputLength, ENCRYPT);
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211 void WapiSMS4CalculateMic(u8 *Key, u8 *IV, u8 *Input1, u8 Input1Length,
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212 u8 *Input2, u16 Input2Length, u8 *Output, u8 *OutputLength)
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214 u32 blockNum, i, remainder, rk[32];
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215 u8 BlockIn[16], BlockOut[16], TempBlock[16], tempIV[16], k;
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218 remainder = Input1Length & 0x0F;
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219 blockNum = Input1Length >> 4;
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222 tempIV[k] = IV[15-k];
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224 memcpy(BlockIn, tempIV, 16);
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226 SMS4KeyExt((u8 *)Key, rk, ENCRYPT);
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228 SMS4Crypt((u8 *)BlockIn, BlockOut, rk);
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230 for(i=0; i<blockNum; i++){
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231 xor_block(BlockIn, (Input1+i*16), BlockOut);
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232 SMS4Crypt((u8 *)BlockIn, BlockOut, rk);
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236 memset(TempBlock, 0, 16);
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237 memcpy(TempBlock, (Input1+blockNum*16), remainder);
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239 xor_block(BlockIn, TempBlock, BlockOut);
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240 SMS4Crypt((u8 *)BlockIn, BlockOut, rk);
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243 remainder = Input2Length & 0x0F;
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244 blockNum = Input2Length >> 4;
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246 for(i=0; i<blockNum; i++){
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247 xor_block(BlockIn, (Input2+i*16), BlockOut);
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248 SMS4Crypt((u8 *)BlockIn, BlockOut, rk);
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252 memset(TempBlock, 0, 16);
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253 memcpy(TempBlock, (Input2+blockNum*16), remainder);
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255 xor_block(BlockIn, TempBlock, BlockOut);
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256 SMS4Crypt((u8 *)BlockIn, BlockOut, rk);
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259 memcpy(Output, BlockOut, 16);
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260 *OutputLength = 16;
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263 void SecCalculateMicSMS4(
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273 struct ieee80211_hdr_3addr_qos *header;
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274 u8 TempBuf[34], TempLen = 32, MicLen, QosOffset, *IV;
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277 WAPI_TRACE(WAPI_TX|WAPI_RX, "=========>%s\n", __FUNCTION__);
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279 header = (struct ieee80211_hdr_3addr_qos *)pHeader;
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280 memset(TempBuf, 0, 34);
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281 memcpy(TempBuf, pHeader, 2); //FrameCtrl
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282 pTemp = (u16*)TempBuf;
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283 *pTemp &= 0xc78f; //bit4,5,6,11,12,13
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285 memcpy((TempBuf+2), (pHeader+4), 12); //Addr1, Addr2
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286 memcpy((TempBuf+14), (pHeader+22), 2); // SeqCtrl
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287 pTemp = (u16*)(TempBuf + 14);
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290 memcpy((TempBuf+16), (pHeader+16), 6); //Addr3
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292 fc = le16_to_cpu(header->frame_ctl);
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296 if (GetFrDs((u16*)&fc) && GetToDs((u16 *)&fc))
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298 memcpy((TempBuf+22), (pHeader+24), 6);
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301 memset((TempBuf+22), 0, 6);
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305 if((fc & 0x0088) == 0x0088){
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306 memcpy((TempBuf+28), (pHeader+QosOffset), 2);
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308 //IV = pHeader + QosOffset + 2 + SNAP_SIZE + sizeof(u16) + 2;
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309 IV = pHeader + QosOffset + 2 + 2;
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311 IV = pHeader + QosOffset + 2;
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312 //IV = pHeader + QosOffset + SNAP_SIZE + sizeof(u16) + 2;
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315 TempBuf[TempLen-1] = (u8)(DataLen & 0xff);
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316 TempBuf[TempLen-2] = (u8)((DataLen & 0xff00)>>8);
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317 TempBuf[TempLen-4] = KeyIdx;
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319 WAPI_DATA(WAPI_TX, "CalculateMic - KEY", MicKey, 16);
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320 WAPI_DATA(WAPI_TX, "CalculateMic - IV", IV, 16);
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321 WAPI_DATA(WAPI_TX, "CalculateMic - TempBuf", TempBuf, TempLen);
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322 WAPI_DATA(WAPI_TX, "CalculateMic - pData", pData, DataLen);
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324 WapiSMS4CalculateMic(MicKey, IV, TempBuf, TempLen,
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325 pData, DataLen, MicBuffer, &MicLen);
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328 WAPI_TRACE(WAPI_ERR,"%s: MIC Length Error!!\n",__FUNCTION__);
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330 WAPI_TRACE(WAPI_TX|WAPI_RX, "<=========%s\n", __FUNCTION__);
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334 /* AddCount: 1 or 2.
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335 * If overflow, return 1,
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338 u8 WapiIncreasePN(u8 *PN, u8 AddCount)
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347 DBG_8192C("############################%s(): PN[0]=0x%x\n", __FUNCTION__, PN[0]);
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357 //YJ,test,091102,end
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359 for (i=0; i<16; i++)
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361 if (PN[i] + AddCount <= 0xff)
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376 void WapiGetLastRxUnicastPNForQoSData(
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378 PRT_WAPI_STA_INFO pWapiStaInfo,
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382 WAPI_TRACE(WAPI_RX, "===========> %s\n", __FUNCTION__);
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383 switch(UserPriority)
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387 memcpy(PNOut,pWapiStaInfo->lastRxUnicastPNBEQueue,16);
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391 memcpy(PNOut,pWapiStaInfo->lastRxUnicastPNBKQueue,16);
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395 memcpy(PNOut,pWapiStaInfo->lastRxUnicastPNVIQueue,16);
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399 memcpy(PNOut,pWapiStaInfo->lastRxUnicastPNVOQueue,16);
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402 WAPI_TRACE(WAPI_ERR, "%s: Unknown TID \n", __FUNCTION__);
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405 WAPI_TRACE(WAPI_RX, "<=========== %s\n", __FUNCTION__);
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409 void WapiSetLastRxUnicastPNForQoSData(
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412 PRT_WAPI_STA_INFO pWapiStaInfo
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415 WAPI_TRACE(WAPI_RX, "===========> %s\n", __FUNCTION__);
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416 switch(UserPriority)
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420 memcpy(pWapiStaInfo->lastRxUnicastPNBEQueue,PNIn,16);
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424 memcpy(pWapiStaInfo->lastRxUnicastPNBKQueue,PNIn,16);
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428 memcpy(pWapiStaInfo->lastRxUnicastPNVIQueue,PNIn,16);
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432 memcpy(pWapiStaInfo->lastRxUnicastPNVOQueue,PNIn,16);
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435 WAPI_TRACE(WAPI_ERR, "%s: Unknown TID \n", __FUNCTION__);
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438 WAPI_TRACE(WAPI_RX, "<=========== %s\n", __FUNCTION__);
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442 /****************************************************************************
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443 FALSE not RX-Reorder
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445 add to support WAPI to N-mode
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446 *****************************************************************************/
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447 u8 WapiCheckPnInSwDecrypt(
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448 _adapter *padapter,
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449 struct sk_buff *pskb
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455 struct ieee80211_hdr_3addr_qos *header;
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457 u8 *pDaddr, *pTaddr, *pRaddr;
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459 header = (struct ieee80211_hdr_3addr_qos *)pskb->data;
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460 pTaddr = header->addr2;
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461 pRaddr = header->addr1;
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462 fc = le16_to_cpu(header->frame_ctl);
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465 pDaddr = header->addr3;
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467 pDaddr = header->addr1;
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469 if ((_rtw_memcmp(pRaddr, padapter->pnetdev->dev_addr, ETH_ALEN) == 0)
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471 && (GetFrameType(&fc) == WIFI_QOS_DATA_TYPE))
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472 //&& ieee->pHTInfo->bCurrentHTSupport &&
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473 //ieee->pHTInfo->bCurRxReorderEnable)
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478 WAPI_TRACE(WAPI_RX, "%s: return %d\n", __FUNCTION__, ret);
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482 int SecSMS4HeaderFillIV(_adapter *padapter, u8 *pxmitframe)
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484 struct pkt_attrib *pattrib = &((struct xmit_frame*)pxmitframe)->attrib;
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485 u8 * frame = ((struct xmit_frame *)pxmitframe)->buf_addr + TXDESC_OFFSET;
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486 u8 *pSecHeader = NULL, *pos = NULL, *pRA = NULL;
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487 u8 bPNOverflow = false, bFindMatchPeer = false, hdr_len = 0;
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488 PWLAN_HEADER_WAPI_EXTENSION pWapiExt = NULL;
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489 PRT_WAPI_T pWapiInfo = &padapter->wapiInfo;
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490 PRT_WAPI_STA_INFO pWapiSta = NULL;
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493 WAPI_TRACE(WAPI_TX, "=========>%s\n", __FUNCTION__);
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497 hdr_len = sMacHdrLng;
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498 if (GetFrameType(pskb->data) == WIFI_QOS_DATA_TYPE)
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502 //hdr_len += SNAP_SIZE + sizeof(u16);
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504 pos = skb_push(pskb, padapter->wapiInfo.extra_prefix_len);
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505 memmove(pos, pos+padapter->wapiInfo.extra_prefix_len, hdr_len);
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507 pSecHeader = pskb->data + hdr_len;
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508 pWapiExt = (PWLAN_HEADER_WAPI_EXTENSION)pSecHeader;
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509 pRA = pskb->data + 4;
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511 WAPI_DATA(WAPI_TX, "FillIV - Before Fill IV", pskb->data, pskb->len);
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513 //Address 1 is always receiver's address
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514 if( IS_MCAST(pRA) ){
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515 if(!pWapiInfo->wapiTxMsk.bTxEnable){
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516 WAPI_TRACE(WAPI_ERR,"%s: bTxEnable = 0!!\n",__FUNCTION__);
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519 if(pWapiInfo->wapiTxMsk.keyId <= 1){
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520 pWapiExt->KeyIdx = pWapiInfo->wapiTxMsk.keyId;
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521 pWapiExt->Reserved = 0;
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522 bPNOverflow = WapiIncreasePN(pWapiInfo->lastTxMulticastPN, 1);
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523 memcpy(pWapiExt->PN, pWapiInfo->lastTxMulticastPN, 16);
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525 // Update MSK Notification.
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526 WAPI_TRACE(WAPI_ERR,"===============>%s():multicast PN overflow\n",__FUNCTION__);
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527 rtw_wapi_app_event_handler(padapter,NULL,0,pRA, false, false, true, 0, false);
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530 WAPI_TRACE(WAPI_ERR,"%s: Invalid Wapi Multicast KeyIdx!!\n",__FUNCTION__);
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535 list_for_each_entry(pWapiSta, &pWapiInfo->wapiSTAUsedList, list) {
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536 if(!memcmp(pWapiSta->PeerMacAddr,pRA,6)){
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537 bFindMatchPeer = true;
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541 if (bFindMatchPeer){
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542 if((!pWapiSta->wapiUskUpdate.bTxEnable) && (!pWapiSta->wapiUsk.bTxEnable)){
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543 WAPI_TRACE(WAPI_ERR,"%s: bTxEnable = 0!!\n",__FUNCTION__);
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546 if (pWapiSta->wapiUsk.keyId <= 1){
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547 if(pWapiSta->wapiUskUpdate.bTxEnable)
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548 pWapiExt->KeyIdx = pWapiSta->wapiUskUpdate.keyId;
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550 pWapiExt->KeyIdx = pWapiSta->wapiUsk.keyId;
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552 pWapiExt->Reserved = 0;
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553 bPNOverflow = WapiIncreasePN(pWapiSta->lastTxUnicastPN, 2);
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554 memcpy(pWapiExt->PN, pWapiSta->lastTxUnicastPN, 16);
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556 // Update USK Notification.
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557 WAPI_TRACE(WAPI_ERR,"===============>%s():unicast PN overflow\n",__FUNCTION__);
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558 rtw_wapi_app_event_handler(padapter,NULL,0,pWapiSta->PeerMacAddr, false, true, false, 0, false);
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561 WAPI_TRACE(WAPI_ERR,"%s: Invalid Wapi Unicast KeyIdx!!\n",__FUNCTION__);
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566 WAPI_TRACE(WAPI_ERR,"%s: Can not find Peer Sta "MAC_FMT"!!\n",__FUNCTION__, MAC_ARG(pRA));
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571 WAPI_DATA(WAPI_TX, "FillIV - After Fill IV", pskb->data, pskb->len);
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572 WAPI_TRACE(WAPI_TX, "<=========%s\n", __FUNCTION__);
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577 // WAPI SW Enc: must have done Coalesce!
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578 void SecSWSMS4Encryption(
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579 _adapter *padapter,
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583 PRT_WAPI_T pWapiInfo = &padapter->wapiInfo;
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584 PRT_WAPI_STA_INFO pWapiSta = NULL;
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585 u8 *pframe = ((struct xmit_frame*)pxmitframe)->buf_addr + TXDESC_SIZE;
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586 struct pkt_attrib *pattrib = &((struct xmit_frame*)pxmitframe)->attrib;
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588 u8 *SecPtr = NULL, *pRA, *pMicKey = NULL, *pDataKey = NULL, *pIV = NULL;
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589 u8 IVOffset, DataOffset, bFindMatchPeer = false, KeyIdx = 0, MicBuffer[16];
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592 WAPI_TRACE(WAPI_TX, "=========>%s\n", __FUNCTION__);
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594 WAPI_TRACE(WAPI_TX,"hdrlen: %d \n",pattrib->hdrlen);
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598 DataOffset = pattrib->hdrlen + pattrib->iv_len;
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603 if( IS_MCAST(pRA) ){
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604 KeyIdx = pWapiInfo->wapiTxMsk.keyId;
\r
605 pIV = pWapiInfo->lastTxMulticastPN;
\r
606 pMicKey = pWapiInfo->wapiTxMsk.micKey;
\r
607 pDataKey = pWapiInfo->wapiTxMsk.dataKey;
\r
609 if (!list_empty(&(pWapiInfo->wapiSTAUsedList))){
\r
610 list_for_each_entry(pWapiSta, &pWapiInfo->wapiSTAUsedList, list) {
\r
611 if (0 == memcmp(pWapiSta->PeerMacAddr, pRA, 6)){
\r
612 bFindMatchPeer = true;
\r
617 if (bFindMatchPeer){
\r
618 if (pWapiSta->wapiUskUpdate.bTxEnable){
\r
619 KeyIdx = pWapiSta->wapiUskUpdate.keyId;
\r
620 WAPI_TRACE(WAPI_TX, "%s(): Use update USK!! KeyIdx=%d\n", __FUNCTION__, KeyIdx);
\r
621 pIV = pWapiSta->lastTxUnicastPN;
\r
622 pMicKey = pWapiSta->wapiUskUpdate.micKey;
\r
623 pDataKey = pWapiSta->wapiUskUpdate.dataKey;
\r
625 KeyIdx = pWapiSta->wapiUsk.keyId;
\r
626 WAPI_TRACE(WAPI_TX, "%s(): Use USK!! KeyIdx=%d\n", __FUNCTION__, KeyIdx);
\r
627 pIV = pWapiSta->lastTxUnicastPN;
\r
628 pMicKey = pWapiSta->wapiUsk.micKey;
\r
629 pDataKey = pWapiSta->wapiUsk.dataKey;
\r
632 WAPI_TRACE(WAPI_ERR,"%s: Can not find Peer Sta!!\n",__FUNCTION__);
\r
636 WAPI_TRACE(WAPI_ERR,"%s: wapiSTAUsedList is empty!!\n",__FUNCTION__);
\r
642 SecCalculateMicSMS4(KeyIdx, pMicKey, SecPtr, (SecPtr+DataOffset), pattrib->pktlen, MicBuffer);
\r
644 WAPI_DATA(WAPI_TX, "Encryption - MIC", MicBuffer, padapter->wapiInfo.extra_postfix_len);
\r
646 memcpy(pframe+pattrib->hdrlen+pattrib->iv_len+pattrib->pktlen-pattrib->icv_len,
\r
648 padapter->wapiInfo.extra_postfix_len
\r
652 WapiSMS4Encryption(pDataKey, pIV, (SecPtr+DataOffset),pattrib->pktlen+pattrib->icv_len, (SecPtr+DataOffset), &OutputLength);
\r
654 WAPI_DATA(WAPI_TX, "Encryption - After SMS4 encryption",pframe,pattrib->hdrlen+pattrib->iv_len+pattrib->pktlen);
\r
656 WAPI_TRACE(WAPI_TX, "<=========%s\n", __FUNCTION__);
\r
659 u8 SecSWSMS4Decryption(
\r
660 _adapter *padapter,
\r
662 struct recv_priv *precv_priv
\r
665 PRT_WAPI_T pWapiInfo = &padapter->wapiInfo;
\r
666 struct recv_frame_hdr *precv_hdr;
\r
667 PRT_WAPI_STA_INFO pWapiSta = NULL;
\r
668 u8 IVOffset, DataOffset, bFindMatchPeer = false, bUseUpdatedKey = false;
\r
669 u8 KeyIdx, MicBuffer[16], lastRxPNforQoS[16];
\r
670 u8 *pRA, *pTA, *pMicKey, *pDataKey, *pLastRxPN, *pRecvPN, *pSecData, *pRecvMic, *pos;
\r
672 u16 OutputLength, DataLen;
\r
674 struct sk_buff * pskb;
\r
676 WAPI_TRACE(WAPI_RX, "=========>%s\n", __FUNCTION__);
\r
680 precv_hdr = &((union recv_frame*)precv_frame)->u.hdr;
\r
681 pskb = (struct sk_buff *)(precv_hdr->rx_data);
\r
682 precv_hdr->bWapiCheckPNInDecrypt = WapiCheckPnInSwDecrypt(padapter, pskb);
\r
683 WAPI_TRACE(WAPI_RX, "=========>%s: check PN %d\n", __FUNCTION__,precv_hdr->bWapiCheckPNInDecrypt);
\r
684 WAPI_DATA(WAPI_RX, "Decryption - Before decryption", pskb->data, pskb->len);
\r
686 IVOffset = sMacHdrLng;
\r
687 bQosData = GetFrameType(pskb->data) == WIFI_QOS_DATA_TYPE;
\r
695 //IVOffset += SNAP_SIZE + sizeof(u16);
\r
697 DataOffset = IVOffset + padapter->wapiInfo.extra_prefix_len;
\r
699 pRA = pskb->data + 4;
\r
700 pTA = pskb->data + 10;
\r
701 KeyIdx = *(pskb->data + IVOffset);
\r
702 pRecvPN = pskb->data + IVOffset + 2;
\r
703 pSecData = pskb->data + DataOffset;
\r
704 DataLen = pskb->len - DataOffset;
\r
705 pRecvMic = pskb->data + pskb->len - padapter->wapiInfo.extra_postfix_len;
\r
706 TID = GetTid(pskb->data);
\r
708 if (!list_empty(&(pWapiInfo->wapiSTAUsedList))){
\r
709 list_for_each_entry(pWapiSta, &pWapiInfo->wapiSTAUsedList, list) {
\r
710 if (0 == memcmp(pWapiSta->PeerMacAddr, pTA, 6)){
\r
711 bFindMatchPeer = true;
\r
717 if (!bFindMatchPeer){
\r
718 WAPI_TRACE(WAPI_ERR, "%s: Can not find Peer Sta "MAC_FMT" for Key Info!!!\n", __FUNCTION__, MAC_ARG(pTA));
\r
722 if( IS_MCAST(pRA) ){
\r
723 WAPI_TRACE(WAPI_RX, "%s: Multicast decryption !!!\n", __FUNCTION__);
\r
724 if (pWapiSta->wapiMsk.keyId == KeyIdx && pWapiSta->wapiMsk.bSet){
\r
725 pLastRxPN = pWapiSta->lastRxMulticastPN;
\r
726 if (!WapiComparePN(pRecvPN, pLastRxPN)){
\r
727 WAPI_TRACE(WAPI_ERR, "%s: MSK PN is not larger than last, Dropped!!!\n", __FUNCTION__);
\r
728 WAPI_DATA(WAPI_ERR, "pRecvPN:", pRecvPN, 16);
\r
729 WAPI_DATA(WAPI_ERR, "pLastRxPN:", pLastRxPN, 16);
\r
733 memcpy(pLastRxPN, pRecvPN, 16);
\r
734 pMicKey = pWapiSta->wapiMsk.micKey;
\r
735 pDataKey = pWapiSta->wapiMsk.dataKey;
\r
736 }else if (pWapiSta->wapiMskUpdate.keyId == KeyIdx && pWapiSta->wapiMskUpdate.bSet){
\r
737 WAPI_TRACE(WAPI_RX, "%s: Use Updated MSK for Decryption !!!\n", __FUNCTION__);
\r
738 bUseUpdatedKey = true;
\r
739 memcpy(pWapiSta->lastRxMulticastPN, pRecvPN, 16);
\r
740 pMicKey = pWapiSta->wapiMskUpdate.micKey;
\r
741 pDataKey = pWapiSta->wapiMskUpdate.dataKey;
\r
743 WAPI_TRACE(WAPI_ERR, "%s: Can not find MSK with matched KeyIdx(%d), Dropped !!!\n", __FUNCTION__,KeyIdx);
\r
748 WAPI_TRACE(WAPI_RX, "%s: Unicast decryption !!!\n", __FUNCTION__);
\r
749 if (pWapiSta->wapiUsk.keyId == KeyIdx && pWapiSta->wapiUsk.bSet){
\r
750 WAPI_TRACE(WAPI_RX, "%s: Use USK for Decryption!!!\n", __FUNCTION__);
\r
751 if(precv_hdr->bWapiCheckPNInDecrypt){
\r
752 if(GetFrameType(pskb->data) == WIFI_QOS_DATA_TYPE){
\r
753 WapiGetLastRxUnicastPNForQoSData(TID, pWapiSta, lastRxPNforQoS);
\r
754 pLastRxPN = lastRxPNforQoS;
\r
756 pLastRxPN = pWapiSta->lastRxUnicastPN;
\r
758 if (!WapiComparePN(pRecvPN, pLastRxPN)){
\r
762 WapiSetLastRxUnicastPNForQoSData(TID, pRecvPN, pWapiSta);
\r
764 memcpy(pWapiSta->lastRxUnicastPN, pRecvPN, 16);
\r
767 memcpy(precv_hdr->WapiTempPN,pRecvPN,16);
\r
770 if (check_fwstate(&padapter->mlmepriv, WIFI_STATION_STATE))
\r
772 if ((pRecvPN[0] & 0x1) == 0){
\r
773 WAPI_TRACE(WAPI_ERR, "%s: Rx USK PN is not odd when Infra STA mode, Dropped !!!\n", __FUNCTION__);
\r
778 pMicKey = pWapiSta->wapiUsk.micKey;
\r
779 pDataKey = pWapiSta->wapiUsk.dataKey;
\r
781 else if (pWapiSta->wapiUskUpdate.keyId == KeyIdx && pWapiSta->wapiUskUpdate.bSet ){
\r
782 WAPI_TRACE(WAPI_RX, "%s: Use Updated USK for Decryption!!!\n", __FUNCTION__);
\r
783 if(pWapiSta->bAuthenticatorInUpdata)
\r
784 bUseUpdatedKey = true;
\r
786 bUseUpdatedKey = false;
\r
789 WapiSetLastRxUnicastPNForQoSData(TID, pRecvPN, pWapiSta);
\r
791 memcpy(pWapiSta->lastRxUnicastPN, pRecvPN, 16);
\r
793 pMicKey = pWapiSta->wapiUskUpdate.micKey;
\r
794 pDataKey = pWapiSta->wapiUskUpdate.dataKey;
\r
796 WAPI_TRACE(WAPI_ERR, "%s: No valid USK!!!KeyIdx=%d pWapiSta->wapiUsk.keyId=%d pWapiSta->wapiUskUpdate.keyId=%d\n", __FUNCTION__, KeyIdx, pWapiSta->wapiUsk.keyId, pWapiSta->wapiUskUpdate.keyId);
\r
797 //dump_buf(pskb->data,pskb->len);
\r
802 WAPI_DATA(WAPI_RX, "Decryption - DataKey", pDataKey, 16);
\r
803 WAPI_DATA(WAPI_RX, "Decryption - IV", pRecvPN, 16);
\r
804 WapiSMS4Decryption(pDataKey, pRecvPN, pSecData, DataLen, pSecData, &OutputLength);
\r
806 if (OutputLength != DataLen)
\r
807 WAPI_TRACE(WAPI_ERR, "%s: Output Length Error!!!!\n", __FUNCTION__);
\r
809 WAPI_DATA(WAPI_RX, "Decryption - After decryption", pskb->data, pskb->len);
\r
811 DataLen -= padapter->wapiInfo.extra_postfix_len;
\r
813 SecCalculateMicSMS4(KeyIdx, pMicKey, pskb->data, pSecData, DataLen, MicBuffer);
\r
815 WAPI_DATA(WAPI_RX, "Decryption - MIC received", pRecvMic, SMS4_MIC_LEN);
\r
816 WAPI_DATA(WAPI_RX, "Decryption - MIC calculated", MicBuffer, SMS4_MIC_LEN);
\r
818 if (0 == memcmp(MicBuffer, pRecvMic, padapter->wapiInfo.extra_postfix_len)){
\r
819 WAPI_TRACE(WAPI_RX, "%s: Check MIC OK!!\n", __FUNCTION__);
\r
820 if (bUseUpdatedKey){
\r
821 // delete the old key
\r
822 if ( IS_MCAST(pRA) ){
\r
823 WAPI_TRACE(WAPI_API, "%s(): AE use new update MSK!!\n", __FUNCTION__);
\r
824 pWapiSta->wapiMsk.keyId = pWapiSta->wapiMskUpdate.keyId;
\r
825 memcpy(pWapiSta->wapiMsk.dataKey, pWapiSta->wapiMskUpdate.dataKey, 16);
\r
826 memcpy(pWapiSta->wapiMsk.micKey, pWapiSta->wapiMskUpdate.micKey, 16);
\r
827 pWapiSta->wapiMskUpdate.bTxEnable = pWapiSta->wapiMskUpdate.bSet = false;
\r
829 WAPI_TRACE(WAPI_API, "%s(): AE use new update USK!!\n", __FUNCTION__);
\r
830 pWapiSta->wapiUsk.keyId = pWapiSta->wapiUskUpdate.keyId;
\r
831 memcpy(pWapiSta->wapiUsk.dataKey, pWapiSta->wapiUskUpdate.dataKey, 16);
\r
832 memcpy(pWapiSta->wapiUsk.micKey, pWapiSta->wapiUskUpdate.micKey, 16);
\r
833 pWapiSta->wapiUskUpdate.bTxEnable = pWapiSta->wapiUskUpdate.bSet = false;
\r
837 WAPI_TRACE(WAPI_ERR, "%s: Check MIC Error, Dropped !!!!\n", __FUNCTION__);
\r
842 memmove(pos+padapter->wapiInfo.extra_prefix_len, pos, IVOffset);
\r
843 skb_pull(pskb, padapter->wapiInfo.extra_prefix_len);
\r
845 WAPI_TRACE(WAPI_RX, "<=========%s\n", __FUNCTION__);
\r
850 u32 rtw_sms4_encrypt(_adapter *padapter, u8 *pxmitframe)
\r
854 u32 res = _SUCCESS;
\r
856 WAPI_TRACE(WAPI_TX, "=========>%s\n", __FUNCTION__);
\r
858 if ((!padapter->WapiSupport) || (!padapter->wapiInfo.bWapiEnable))
\r
860 WAPI_TRACE(WAPI_TX, "<========== %s, WAPI not supported or enabled!\n", __FUNCTION__);
\r
864 if(((struct xmit_frame*)pxmitframe)->buf_addr==NULL)
\r
867 pframe = ((struct xmit_frame*)pxmitframe)->buf_addr + TXDESC_OFFSET;
\r
869 SecSWSMS4Encryption(padapter, pxmitframe);
\r
871 WAPI_TRACE(WAPI_TX, "<=========%s\n", __FUNCTION__);
\r
875 u32 rtw_sms4_decrypt(_adapter *padapter, u8 *precvframe)
\r
878 u32 res = _SUCCESS;
\r
880 WAPI_TRACE(WAPI_RX, "=========>%s\n", __FUNCTION__);
\r
882 if ((!padapter->WapiSupport) || (!padapter->wapiInfo.bWapiEnable))
\r
884 WAPI_TRACE(WAPI_RX, "<========== %s, WAPI not supported or enabled!\n", __FUNCTION__);
\r
889 //drop packet when hw decrypt fail
\r
893 //pframe=(unsigned char *)((union recv_frame*)precvframe)->u.hdr.rx_data;
\r
895 if (false == SecSWSMS4Decryption(padapter, precvframe, &padapter->recvpriv))
\r
897 WAPI_TRACE(WAPI_ERR, "%s():SMS4 decrypt frame error\n",__FUNCTION__);
\r
901 WAPI_TRACE(WAPI_RX, "<=========%s\n", __FUNCTION__);
\r
907 u32 rtw_sms4_encrypt(_adapter *padapter, u8 *pxmitframe)
\r
909 WAPI_TRACE(WAPI_TX, "=========>Dummy %s\n", __FUNCTION__);
\r
910 WAPI_TRACE(WAPI_TX, "<=========Dummy %s\n", __FUNCTION__);
\r
914 u32 rtw_sms4_decrypt(_adapter *padapter, u8 *precvframe)
\r
916 WAPI_TRACE(WAPI_RX, "=========>Dummy %s\n", __FUNCTION__);
\r
917 WAPI_TRACE(WAPI_RX, "<=========Dummy %s\n", __FUNCTION__);
\r