| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifdef CONFIG_WAPI_SUPPORT |
| |
| #include <linux/unistd.h> |
| #include <linux/etherdevice.h> |
| #include <drv_types.h> |
| #include <rtw_wapi.h> |
| |
| |
| #ifdef CONFIG_WAPI_SW_SMS4 |
| |
| #define WAPI_LITTLE_ENDIAN |
| /* #define BIG_ENDIAN */ |
| #define ENCRYPT 0 |
| #define DECRYPT 1 |
| |
| |
| /********************************************************** |
| **********************************************************/ |
| const u8 Sbox[256] = { |
| 0xd6, 0x90, 0xe9, 0xfe, 0xcc, 0xe1, 0x3d, 0xb7, 0x16, 0xb6, 0x14, 0xc2, 0x28, 0xfb, 0x2c, 0x05, |
| 0x2b, 0x67, 0x9a, 0x76, 0x2a, 0xbe, 0x04, 0xc3, 0xaa, 0x44, 0x13, 0x26, 0x49, 0x86, 0x06, 0x99, |
| 0x9c, 0x42, 0x50, 0xf4, 0x91, 0xef, 0x98, 0x7a, 0x33, 0x54, 0x0b, 0x43, 0xed, 0xcf, 0xac, 0x62, |
| 0xe4, 0xb3, 0x1c, 0xa9, 0xc9, 0x08, 0xe8, 0x95, 0x80, 0xdf, 0x94, 0xfa, 0x75, 0x8f, 0x3f, 0xa6, |
| 0x47, 0x07, 0xa7, 0xfc, 0xf3, 0x73, 0x17, 0xba, 0x83, 0x59, 0x3c, 0x19, 0xe6, 0x85, 0x4f, 0xa8, |
| 0x68, 0x6b, 0x81, 0xb2, 0x71, 0x64, 0xda, 0x8b, 0xf8, 0xeb, 0x0f, 0x4b, 0x70, 0x56, 0x9d, 0x35, |
| 0x1e, 0x24, 0x0e, 0x5e, 0x63, 0x58, 0xd1, 0xa2, 0x25, 0x22, 0x7c, 0x3b, 0x01, 0x21, 0x78, 0x87, |
| 0xd4, 0x00, 0x46, 0x57, 0x9f, 0xd3, 0x27, 0x52, 0x4c, 0x36, 0x02, 0xe7, 0xa0, 0xc4, 0xc8, 0x9e, |
| 0xea, 0xbf, 0x8a, 0xd2, 0x40, 0xc7, 0x38, 0xb5, 0xa3, 0xf7, 0xf2, 0xce, 0xf9, 0x61, 0x15, 0xa1, |
| 0xe0, 0xae, 0x5d, 0xa4, 0x9b, 0x34, 0x1a, 0x55, 0xad, 0x93, 0x32, 0x30, 0xf5, 0x8c, 0xb1, 0xe3, |
| 0x1d, 0xf6, 0xe2, 0x2e, 0x82, 0x66, 0xca, 0x60, 0xc0, 0x29, 0x23, 0xab, 0x0d, 0x53, 0x4e, 0x6f, |
| 0xd5, 0xdb, 0x37, 0x45, 0xde, 0xfd, 0x8e, 0x2f, 0x03, 0xff, 0x6a, 0x72, 0x6d, 0x6c, 0x5b, 0x51, |
| 0x8d, 0x1b, 0xaf, 0x92, 0xbb, 0xdd, 0xbc, 0x7f, 0x11, 0xd9, 0x5c, 0x41, 0x1f, 0x10, 0x5a, 0xd8, |
| 0x0a, 0xc1, 0x31, 0x88, 0xa5, 0xcd, 0x7b, 0xbd, 0x2d, 0x74, 0xd0, 0x12, 0xb8, 0xe5, 0xb4, 0xb0, |
| 0x89, 0x69, 0x97, 0x4a, 0x0c, 0x96, 0x77, 0x7e, 0x65, 0xb9, 0xf1, 0x09, 0xc5, 0x6e, 0xc6, 0x84, |
| 0x18, 0xf0, 0x7d, 0xec, 0x3a, 0xdc, 0x4d, 0x20, 0x79, 0xee, 0x5f, 0x3e, 0xd7, 0xcb, 0x39, 0x48 |
| }; |
| |
| const u32 CK[32] = { |
| 0x00070e15, 0x1c232a31, 0x383f464d, 0x545b6269, |
| 0x70777e85, 0x8c939aa1, 0xa8afb6bd, 0xc4cbd2d9, |
| 0xe0e7eef5, 0xfc030a11, 0x181f262d, 0x343b4249, |
| 0x50575e65, 0x6c737a81, 0x888f969d, 0xa4abb2b9, |
| 0xc0c7ced5, 0xdce3eaf1, 0xf8ff060d, 0x141b2229, |
| 0x30373e45, 0x4c535a61, 0x686f767d, 0x848b9299, |
| 0xa0a7aeb5, 0xbcc3cad1, 0xd8dfe6ed, 0xf4fb0209, |
| 0x10171e25, 0x2c333a41, 0x484f565d, 0x646b7279 |
| }; |
| |
| #define Rotl(_x, _y) (((_x) << (_y)) | ((_x) >> (32 - (_y)))) |
| |
| #define ByteSub(_A) (Sbox[(_A) >> 24 & 0xFF] << 24 | \ |
| Sbox[(_A) >> 16 & 0xFF] << 16 | \ |
| Sbox[(_A) >> 8 & 0xFF] << 8 | \ |
| Sbox[(_A) & 0xFF]) |
| |
| #define L1(_B) ((_B) ^ Rotl(_B, 2) ^ Rotl(_B, 10) ^ Rotl(_B, 18) ^ Rotl(_B, 24)) |
| #define L2(_B) ((_B) ^ Rotl(_B, 13) ^ Rotl(_B, 23)) |
| |
| static void |
| xor_block(void *dst, void *src1, void *src2) |
| /* 128-bit xor: *dst = *src1 xor *src2. Pointers must be 32-bit aligned */ |
| { |
| ((u32 *)dst)[0] = ((u32 *)src1)[0] ^ ((u32 *)src2)[0]; |
| ((u32 *)dst)[1] = ((u32 *)src1)[1] ^ ((u32 *)src2)[1]; |
| ((u32 *)dst)[2] = ((u32 *)src1)[2] ^ ((u32 *)src2)[2]; |
| ((u32 *)dst)[3] = ((u32 *)src1)[3] ^ ((u32 *)src2)[3]; |
| } |
| |
| |
| void SMS4Crypt(u8 *Input, u8 *Output, u32 *rk) |
| { |
| u32 r, mid, x0, x1, x2, x3, *p; |
| p = (u32 *)Input; |
| x0 = p[0]; |
| x1 = p[1]; |
| x2 = p[2]; |
| x3 = p[3]; |
| #ifdef WAPI_LITTLE_ENDIAN |
| x0 = Rotl(x0, 16); |
| x0 = ((x0 & 0x00FF00FF) << 8) | ((x0 & 0xFF00FF00) >> 8); |
| x1 = Rotl(x1, 16); |
| x1 = ((x1 & 0x00FF00FF) << 8) | ((x1 & 0xFF00FF00) >> 8); |
| x2 = Rotl(x2, 16); |
| x2 = ((x2 & 0x00FF00FF) << 8) | ((x2 & 0xFF00FF00) >> 8); |
| x3 = Rotl(x3, 16); |
| x3 = ((x3 & 0x00FF00FF) << 8) | ((x3 & 0xFF00FF00) >> 8); |
| #endif |
| for (r = 0; r < 32; r += 4) { |
| mid = x1 ^ x2 ^ x3 ^ rk[r + 0]; |
| mid = ByteSub(mid); |
| x0 ^= L1(mid); |
| mid = x2 ^ x3 ^ x0 ^ rk[r + 1]; |
| mid = ByteSub(mid); |
| x1 ^= L1(mid); |
| mid = x3 ^ x0 ^ x1 ^ rk[r + 2]; |
| mid = ByteSub(mid); |
| x2 ^= L1(mid); |
| mid = x0 ^ x1 ^ x2 ^ rk[r + 3]; |
| mid = ByteSub(mid); |
| x3 ^= L1(mid); |
| } |
| #ifdef WAPI_LITTLE_ENDIAN |
| x0 = Rotl(x0, 16); |
| x0 = ((x0 & 0x00FF00FF) << 8) | ((x0 & 0xFF00FF00) >> 8); |
| x1 = Rotl(x1, 16); |
| x1 = ((x1 & 0x00FF00FF) << 8) | ((x1 & 0xFF00FF00) >> 8); |
| x2 = Rotl(x2, 16); |
| x2 = ((x2 & 0x00FF00FF) << 8) | ((x2 & 0xFF00FF00) >> 8); |
| x3 = Rotl(x3, 16); |
| x3 = ((x3 & 0x00FF00FF) << 8) | ((x3 & 0xFF00FF00) >> 8); |
| #endif |
| p = (u32 *)Output; |
| p[0] = x3; |
| p[1] = x2; |
| p[2] = x1; |
| p[3] = x0; |
| } |
| |
| |
| |
| void SMS4KeyExt(u8 *Key, u32 *rk, u32 CryptFlag) |
| { |
| u32 r, mid, x0, x1, x2, x3, *p; |
| |
| p = (u32 *)Key; |
| x0 = p[0]; |
| x1 = p[1]; |
| x2 = p[2]; |
| x3 = p[3]; |
| #ifdef WAPI_LITTLE_ENDIAN |
| x0 = Rotl(x0, 16); |
| x0 = ((x0 & 0xFF00FF) << 8) | ((x0 & 0xFF00FF00) >> 8); |
| x1 = Rotl(x1, 16); |
| x1 = ((x1 & 0xFF00FF) << 8) | ((x1 & 0xFF00FF00) >> 8); |
| x2 = Rotl(x2, 16); |
| x2 = ((x2 & 0xFF00FF) << 8) | ((x2 & 0xFF00FF00) >> 8); |
| x3 = Rotl(x3, 16); |
| x3 = ((x3 & 0xFF00FF) << 8) | ((x3 & 0xFF00FF00) >> 8); |
| #endif |
| |
| x0 ^= 0xa3b1bac6; |
| x1 ^= 0x56aa3350; |
| x2 ^= 0x677d9197; |
| x3 ^= 0xb27022dc; |
| for (r = 0; r < 32; r += 4) { |
| mid = x1 ^ x2 ^ x3 ^ CK[r + 0]; |
| mid = ByteSub(mid); |
| rk[r + 0] = x0 ^= L2(mid); |
| mid = x2 ^ x3 ^ x0 ^ CK[r + 1]; |
| mid = ByteSub(mid); |
| rk[r + 1] = x1 ^= L2(mid); |
| mid = x3 ^ x0 ^ x1 ^ CK[r + 2]; |
| mid = ByteSub(mid); |
| rk[r + 2] = x2 ^= L2(mid); |
| mid = x0 ^ x1 ^ x2 ^ CK[r + 3]; |
| mid = ByteSub(mid); |
| rk[r + 3] = x3 ^= L2(mid); |
| } |
| if (CryptFlag == DECRYPT) { |
| for (r = 0; r < 16; r++) |
| mid = rk[r], rk[r] = rk[31 - r], rk[31 - r] = mid; |
| } |
| } |
| |
| |
| void WapiSMS4Cryption(u8 *Key, u8 *IV, u8 *Input, u16 InputLength, |
| u8 *Output, u16 *OutputLength, u32 CryptFlag) |
| { |
| u32 blockNum, i, j, rk[32]; |
| u16 remainder; |
| u8 blockIn[16], blockOut[16], tempIV[16], k; |
| |
| *OutputLength = 0; |
| remainder = InputLength & 0x0F; |
| blockNum = InputLength >> 4; |
| if (remainder != 0) |
| blockNum++; |
| else |
| remainder = 16; |
| |
| for (k = 0; k < 16; k++) |
| tempIV[k] = IV[15 - k]; |
| |
| memcpy(blockIn, tempIV, 16); |
| |
| SMS4KeyExt((u8 *)Key, rk, CryptFlag); |
| |
| for (i = 0; i < blockNum - 1; i++) { |
| SMS4Crypt((u8 *)blockIn, blockOut, rk); |
| xor_block(&Output[i * 16], &Input[i * 16], blockOut); |
| memcpy(blockIn, blockOut, 16); |
| } |
| |
| *OutputLength = i * 16; |
| |
| SMS4Crypt((u8 *)blockIn, blockOut, rk); |
| |
| for (j = 0; j < remainder; j++) |
| Output[i * 16 + j] = Input[i * 16 + j] ^ blockOut[j]; |
| *OutputLength += remainder; |
| |
| } |
| |
| void WapiSMS4Encryption(u8 *Key, u8 *IV, u8 *Input, u16 InputLength, |
| u8 *Output, u16 *OutputLength) |
| { |
| |
| WapiSMS4Cryption(Key, IV, Input, InputLength, Output, OutputLength, ENCRYPT); |
| } |
| |
| void WapiSMS4Decryption(u8 *Key, u8 *IV, u8 *Input, u16 InputLength, |
| u8 *Output, u16 *OutputLength) |
| { |
| /* OFB mode: is also ENCRYPT flag */ |
| WapiSMS4Cryption(Key, IV, Input, InputLength, Output, OutputLength, ENCRYPT); |
| } |
| |
| void WapiSMS4CalculateMic(u8 *Key, u8 *IV, u8 *Input1, u8 Input1Length, |
| u8 *Input2, u16 Input2Length, u8 *Output, u8 *OutputLength) |
| { |
| u32 blockNum, i, remainder, rk[32]; |
| u8 BlockIn[16], BlockOut[16], TempBlock[16], tempIV[16], k; |
| |
| *OutputLength = 0; |
| remainder = Input1Length & 0x0F; |
| blockNum = Input1Length >> 4; |
| |
| for (k = 0; k < 16; k++) |
| tempIV[k] = IV[15 - k]; |
| |
| memcpy(BlockIn, tempIV, 16); |
| |
| SMS4KeyExt((u8 *)Key, rk, ENCRYPT); |
| |
| SMS4Crypt((u8 *)BlockIn, BlockOut, rk); |
| |
| for (i = 0; i < blockNum; i++) { |
| xor_block(BlockIn, (Input1 + i * 16), BlockOut); |
| SMS4Crypt((u8 *)BlockIn, BlockOut, rk); |
| } |
| |
| if (remainder != 0) { |
| memset(TempBlock, 0, 16); |
| memcpy(TempBlock, (Input1 + blockNum * 16), remainder); |
| |
| xor_block(BlockIn, TempBlock, BlockOut); |
| SMS4Crypt((u8 *)BlockIn, BlockOut, rk); |
| } |
| |
| remainder = Input2Length & 0x0F; |
| blockNum = Input2Length >> 4; |
| |
| for (i = 0; i < blockNum; i++) { |
| xor_block(BlockIn, (Input2 + i * 16), BlockOut); |
| SMS4Crypt((u8 *)BlockIn, BlockOut, rk); |
| } |
| |
| if (remainder != 0) { |
| memset(TempBlock, 0, 16); |
| memcpy(TempBlock, (Input2 + blockNum * 16), remainder); |
| |
| xor_block(BlockIn, TempBlock, BlockOut); |
| SMS4Crypt((u8 *)BlockIn, BlockOut, rk); |
| } |
| |
| memcpy(Output, BlockOut, 16); |
| *OutputLength = 16; |
| } |
| |
| void SecCalculateMicSMS4( |
| u8 KeyIdx, |
| u8 *MicKey, |
| u8 *pHeader, |
| u8 *pData, |
| u16 DataLen, |
| u8 *MicBuffer |
| ) |
| { |
| #if 0 |
| struct ieee80211_hdr_3addr_qos *header; |
| u8 TempBuf[34], TempLen = 32, MicLen, QosOffset, *IV; |
| u16 *pTemp, fc; |
| |
| WAPI_TRACE(WAPI_TX | WAPI_RX, "=========>%s\n", __FUNCTION__); |
| |
| header = (struct ieee80211_hdr_3addr_qos *)pHeader; |
| memset(TempBuf, 0, 34); |
| memcpy(TempBuf, pHeader, 2); /* FrameCtrl */ |
| pTemp = (u16 *)TempBuf; |
| *pTemp &= 0xc78f; /* bit4,5,6,11,12,13 */ |
| |
| memcpy((TempBuf + 2), (pHeader + 4), 12); /* Addr1, Addr2 */ |
| memcpy((TempBuf + 14), (pHeader + 22), 2); /* SeqCtrl */ |
| pTemp = (u16 *)(TempBuf + 14); |
| *pTemp &= 0x000f; |
| |
| memcpy((TempBuf + 16), (pHeader + 16), 6); /* Addr3 */ |
| |
| fc = le16_to_cpu(header->frame_ctl); |
| |
| |
| |
| if (GetFrDs((u16 *)&fc) && GetToDs((u16 *)&fc)) { |
| memcpy((TempBuf + 22), (pHeader + 24), 6); |
| QosOffset = 30; |
| } else { |
| memset((TempBuf + 22), 0, 6); |
| QosOffset = 24; |
| } |
| |
| if ((fc & 0x0088) == 0x0088) { |
| memcpy((TempBuf + 28), (pHeader + QosOffset), 2); |
| TempLen += 2; |
| /* IV = pHeader + QosOffset + 2 + SNAP_SIZE + sizeof(u16) + 2; */ |
| IV = pHeader + QosOffset + 2 + 2; |
| } else { |
| IV = pHeader + QosOffset + 2; |
| /* IV = pHeader + QosOffset + SNAP_SIZE + sizeof(u16) + 2; */ |
| } |
| |
| TempBuf[TempLen - 1] = (u8)(DataLen & 0xff); |
| TempBuf[TempLen - 2] = (u8)((DataLen & 0xff00) >> 8); |
| TempBuf[TempLen - 4] = KeyIdx; |
| |
| WAPI_DATA(WAPI_TX, "CalculateMic - KEY", MicKey, 16); |
| WAPI_DATA(WAPI_TX, "CalculateMic - IV", IV, 16); |
| WAPI_DATA(WAPI_TX, "CalculateMic - TempBuf", TempBuf, TempLen); |
| WAPI_DATA(WAPI_TX, "CalculateMic - pData", pData, DataLen); |
| |
| WapiSMS4CalculateMic(MicKey, IV, TempBuf, TempLen, |
| pData, DataLen, MicBuffer, &MicLen); |
| |
| if (MicLen != 16) |
| WAPI_TRACE(WAPI_ERR, "%s: MIC Length Error!!\n", __FUNCTION__); |
| |
| WAPI_TRACE(WAPI_TX | WAPI_RX, "<=========%s\n", __FUNCTION__); |
| #endif |
| } |
| |
| /* AddCount: 1 or 2. |
| * If overflow, return 1, |
| * else return 0. |
| */ |
| u8 WapiIncreasePN(u8 *PN, u8 AddCount) |
| { |
| u8 i; |
| |
| if (NULL == PN) |
| return 1; |
| /* YJ,test,091102 */ |
| /* |
| if(AddCount == 2){ |
| RTW_INFO("############################%s(): PN[0]=0x%x\n", __FUNCTION__, PN[0]); |
| if(PN[0] == 0x48){ |
| PN[0] += AddCount; |
| return 1; |
| }else{ |
| PN[0] += AddCount; |
| return 0; |
| } |
| } |
| */ |
| /* YJ,test,091102,end */ |
| |
| for (i = 0; i < 16; i++) { |
| if (PN[i] + AddCount <= 0xff) { |
| PN[i] += AddCount; |
| return 0; |
| } else { |
| PN[i] += AddCount; |
| AddCount = 1; |
| } |
| } |
| return 1; |
| } |
| |
| |
| void WapiGetLastRxUnicastPNForQoSData( |
| u8 UserPriority, |
| PRT_WAPI_STA_INFO pWapiStaInfo, |
| u8 *PNOut |
| ) |
| { |
| WAPI_TRACE(WAPI_RX, "===========> %s\n", __FUNCTION__); |
| switch (UserPriority) { |
| case 0: |
| case 3: |
| memcpy(PNOut, pWapiStaInfo->lastRxUnicastPNBEQueue, 16); |
| break; |
| case 1: |
| case 2: |
| memcpy(PNOut, pWapiStaInfo->lastRxUnicastPNBKQueue, 16); |
| break; |
| case 4: |
| case 5: |
| memcpy(PNOut, pWapiStaInfo->lastRxUnicastPNVIQueue, 16); |
| break; |
| case 6: |
| case 7: |
| memcpy(PNOut, pWapiStaInfo->lastRxUnicastPNVOQueue, 16); |
| break; |
| default: |
| WAPI_TRACE(WAPI_ERR, "%s: Unknown TID\n", __FUNCTION__); |
| break; |
| } |
| WAPI_TRACE(WAPI_RX, "<=========== %s\n", __FUNCTION__); |
| } |
| |
| |
| void WapiSetLastRxUnicastPNForQoSData( |
| u8 UserPriority, |
| u8 *PNIn, |
| PRT_WAPI_STA_INFO pWapiStaInfo |
| ) |
| { |
| WAPI_TRACE(WAPI_RX, "===========> %s\n", __FUNCTION__); |
| switch (UserPriority) { |
| case 0: |
| case 3: |
| memcpy(pWapiStaInfo->lastRxUnicastPNBEQueue, PNIn, 16); |
| break; |
| case 1: |
| case 2: |
| memcpy(pWapiStaInfo->lastRxUnicastPNBKQueue, PNIn, 16); |
| break; |
| case 4: |
| case 5: |
| memcpy(pWapiStaInfo->lastRxUnicastPNVIQueue, PNIn, 16); |
| break; |
| case 6: |
| case 7: |
| memcpy(pWapiStaInfo->lastRxUnicastPNVOQueue, PNIn, 16); |
| break; |
| default: |
| WAPI_TRACE(WAPI_ERR, "%s: Unknown TID\n", __FUNCTION__); |
| break; |
| } |
| WAPI_TRACE(WAPI_RX, "<=========== %s\n", __FUNCTION__); |
| } |
| |
| |
| /**************************************************************************** |
| FALSE not RX-Reorder |
| TRUE do RX Reorder |
| add to support WAPI to N-mode |
| *****************************************************************************/ |
| u8 WapiCheckPnInSwDecrypt( |
| _adapter *padapter, |
| struct sk_buff *pskb |
| ) |
| { |
| u8 ret = false; |
| |
| #if 0 |
| struct ieee80211_hdr_3addr_qos *header; |
| u16 fc; |
| u8 *pDaddr, *pTaddr, *pRaddr; |
| |
| header = (struct ieee80211_hdr_3addr_qos *)pskb->data; |
| pTaddr = header->addr2; |
| pRaddr = header->addr1; |
| fc = le16_to_cpu(header->frame_ctl); |
| |
| if (GetToDs(&fc)) |
| pDaddr = header->addr3; |
| else |
| pDaddr = header->addr1; |
| |
| if ((_rtw_memcmp(pRaddr, padapter->pnetdev->dev_addr, ETH_ALEN) == 0) |
| && !(pDaddr) |
| && (GetFrameType(&fc) == WIFI_QOS_DATA_TYPE)) |
| /* && ieee->pHTInfo->bCurrentHTSupport && */ |
| /* ieee->pHTInfo->bCurRxReorderEnable) */ |
| ret = false; |
| else |
| ret = true; |
| #endif |
| WAPI_TRACE(WAPI_RX, "%s: return %d\n", __FUNCTION__, ret); |
| return ret; |
| } |
| |
| int SecSMS4HeaderFillIV(_adapter *padapter, u8 *pxmitframe) |
| { |
| struct pkt_attrib *pattrib = &((struct xmit_frame *)pxmitframe)->attrib; |
| u8 *frame = ((struct xmit_frame *)pxmitframe)->buf_addr + TXDESC_OFFSET; |
| u8 *pSecHeader = NULL, *pos = NULL, *pRA = NULL; |
| u8 bPNOverflow = false, bFindMatchPeer = false, hdr_len = 0; |
| PWLAN_HEADER_WAPI_EXTENSION pWapiExt = NULL; |
| PRT_WAPI_T pWapiInfo = &padapter->wapiInfo; |
| PRT_WAPI_STA_INFO pWapiSta = NULL; |
| int ret = 0; |
| |
| WAPI_TRACE(WAPI_TX, "=========>%s\n", __FUNCTION__); |
| |
| return ret; |
| #if 0 |
| hdr_len = sMacHdrLng; |
| if (GetFrameType(pskb->data) == WIFI_QOS_DATA_TYPE) |
| hdr_len += 2; |
| /* hdr_len += SNAP_SIZE + sizeof(u16); */ |
| |
| pos = skb_push(pskb, padapter->wapiInfo.extra_prefix_len); |
| memmove(pos, pos + padapter->wapiInfo.extra_prefix_len, hdr_len); |
| |
| pSecHeader = pskb->data + hdr_len; |
| pWapiExt = (PWLAN_HEADER_WAPI_EXTENSION)pSecHeader; |
| pRA = pskb->data + 4; |
| |
| WAPI_DATA(WAPI_TX, "FillIV - Before Fill IV", pskb->data, pskb->len); |
| |
| /* Address 1 is always receiver's address */ |
| if (IS_MCAST(pRA)) { |
| if (!pWapiInfo->wapiTxMsk.bTxEnable) { |
| WAPI_TRACE(WAPI_ERR, "%s: bTxEnable = 0!!\n", __FUNCTION__); |
| return -2; |
| } |
| if (pWapiInfo->wapiTxMsk.keyId <= 1) { |
| pWapiExt->KeyIdx = pWapiInfo->wapiTxMsk.keyId; |
| pWapiExt->Reserved = 0; |
| bPNOverflow = WapiIncreasePN(pWapiInfo->lastTxMulticastPN, 1); |
| memcpy(pWapiExt->PN, pWapiInfo->lastTxMulticastPN, 16); |
| if (bPNOverflow) { |
| /* Update MSK Notification. */ |
| WAPI_TRACE(WAPI_ERR, "===============>%s():multicast PN overflow\n", __FUNCTION__); |
| rtw_wapi_app_event_handler(padapter, NULL, 0, pRA, false, false, true, 0, false); |
| } |
| } else { |
| WAPI_TRACE(WAPI_ERR, "%s: Invalid Wapi Multicast KeyIdx!!\n", __FUNCTION__); |
| ret = -3; |
| } |
| } else { |
| list_for_each_entry(pWapiSta, &pWapiInfo->wapiSTAUsedList, list) { |
| if (!memcmp(pWapiSta->PeerMacAddr, pRA, 6)) { |
| bFindMatchPeer = true; |
| break; |
| } |
| } |
| if (bFindMatchPeer) { |
| if ((!pWapiSta->wapiUskUpdate.bTxEnable) && (!pWapiSta->wapiUsk.bTxEnable)) { |
| WAPI_TRACE(WAPI_ERR, "%s: bTxEnable = 0!!\n", __FUNCTION__); |
| return -4; |
| } |
| if (pWapiSta->wapiUsk.keyId <= 1) { |
| if (pWapiSta->wapiUskUpdate.bTxEnable) |
| pWapiExt->KeyIdx = pWapiSta->wapiUskUpdate.keyId; |
| else |
| pWapiExt->KeyIdx = pWapiSta->wapiUsk.keyId; |
| |
| pWapiExt->Reserved = 0; |
| bPNOverflow = WapiIncreasePN(pWapiSta->lastTxUnicastPN, 2); |
| memcpy(pWapiExt->PN, pWapiSta->lastTxUnicastPN, 16); |
| if (bPNOverflow) { |
| /* Update USK Notification. */ |
| WAPI_TRACE(WAPI_ERR, "===============>%s():unicast PN overflow\n", __FUNCTION__); |
| rtw_wapi_app_event_handler(padapter, NULL, 0, pWapiSta->PeerMacAddr, false, true, false, 0, false); |
| } |
| } else { |
| WAPI_TRACE(WAPI_ERR, "%s: Invalid Wapi Unicast KeyIdx!!\n", __FUNCTION__); |
| ret = -5; |
| } |
| } else { |
| WAPI_TRACE(WAPI_ERR, "%s: Can not find Peer Sta "MAC_FMT"!!\n", __FUNCTION__, MAC_ARG(pRA)); |
| ret = -6; |
| } |
| } |
| |
| WAPI_DATA(WAPI_TX, "FillIV - After Fill IV", pskb->data, pskb->len); |
| WAPI_TRACE(WAPI_TX, "<=========%s\n", __FUNCTION__); |
| return ret; |
| #endif |
| } |
| |
| /* WAPI SW Enc: must have done Coalesce! */ |
| void SecSWSMS4Encryption( |
| _adapter *padapter, |
| u8 *pxmitframe |
| ) |
| { |
| PRT_WAPI_T pWapiInfo = &padapter->wapiInfo; |
| PRT_WAPI_STA_INFO pWapiSta = NULL; |
| u8 *pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + TXDESC_SIZE; |
| struct pkt_attrib *pattrib = &((struct xmit_frame *)pxmitframe)->attrib; |
| |
| u8 *SecPtr = NULL, *pRA, *pMicKey = NULL, *pDataKey = NULL, *pIV = NULL; |
| u8 IVOffset, DataOffset, bFindMatchPeer = false, KeyIdx = 0, MicBuffer[16]; |
| u16 OutputLength; |
| |
| WAPI_TRACE(WAPI_TX, "=========>%s\n", __FUNCTION__); |
| |
| WAPI_TRACE(WAPI_TX, "hdrlen: %d\n", pattrib->hdrlen); |
| |
| return; |
| |
| DataOffset = pattrib->hdrlen + pattrib->iv_len; |
| |
| pRA = pframe + 4; |
| |
| |
| if (IS_MCAST(pRA)) { |
| KeyIdx = pWapiInfo->wapiTxMsk.keyId; |
| pIV = pWapiInfo->lastTxMulticastPN; |
| pMicKey = pWapiInfo->wapiTxMsk.micKey; |
| pDataKey = pWapiInfo->wapiTxMsk.dataKey; |
| } else { |
| if (!list_empty(&(pWapiInfo->wapiSTAUsedList))) { |
| list_for_each_entry(pWapiSta, &pWapiInfo->wapiSTAUsedList, list) { |
| if (0 == memcmp(pWapiSta->PeerMacAddr, pRA, 6)) { |
| bFindMatchPeer = true; |
| break; |
| } |
| } |
| |
| if (bFindMatchPeer) { |
| if (pWapiSta->wapiUskUpdate.bTxEnable) { |
| KeyIdx = pWapiSta->wapiUskUpdate.keyId; |
| WAPI_TRACE(WAPI_TX, "%s(): Use update USK!! KeyIdx=%d\n", __FUNCTION__, KeyIdx); |
| pIV = pWapiSta->lastTxUnicastPN; |
| pMicKey = pWapiSta->wapiUskUpdate.micKey; |
| pDataKey = pWapiSta->wapiUskUpdate.dataKey; |
| } else { |
| KeyIdx = pWapiSta->wapiUsk.keyId; |
| WAPI_TRACE(WAPI_TX, "%s(): Use USK!! KeyIdx=%d\n", __FUNCTION__, KeyIdx); |
| pIV = pWapiSta->lastTxUnicastPN; |
| pMicKey = pWapiSta->wapiUsk.micKey; |
| pDataKey = pWapiSta->wapiUsk.dataKey; |
| } |
| } else { |
| WAPI_TRACE(WAPI_ERR, "%s: Can not find Peer Sta!!\n", __FUNCTION__); |
| return; |
| } |
| } else { |
| WAPI_TRACE(WAPI_ERR, "%s: wapiSTAUsedList is empty!!\n", __FUNCTION__); |
| return; |
| } |
| } |
| |
| SecPtr = pframe; |
| SecCalculateMicSMS4(KeyIdx, pMicKey, SecPtr, (SecPtr + DataOffset), pattrib->pktlen, MicBuffer); |
| |
| WAPI_DATA(WAPI_TX, "Encryption - MIC", MicBuffer, padapter->wapiInfo.extra_postfix_len); |
| |
| memcpy(pframe + pattrib->hdrlen + pattrib->iv_len + pattrib->pktlen - pattrib->icv_len, |
| (u8 *)MicBuffer, |
| padapter->wapiInfo.extra_postfix_len |
| ); |
| |
| |
| WapiSMS4Encryption(pDataKey, pIV, (SecPtr + DataOffset), pattrib->pktlen + pattrib->icv_len, (SecPtr + DataOffset), &OutputLength); |
| |
| WAPI_DATA(WAPI_TX, "Encryption - After SMS4 encryption", pframe, pattrib->hdrlen + pattrib->iv_len + pattrib->pktlen); |
| |
| WAPI_TRACE(WAPI_TX, "<=========%s\n", __FUNCTION__); |
| } |
| |
| u8 SecSWSMS4Decryption( |
| _adapter *padapter, |
| u8 *precv_frame, |
| struct recv_priv *precv_priv |
| ) |
| { |
| PRT_WAPI_T pWapiInfo = &padapter->wapiInfo; |
| struct recv_frame_hdr *precv_hdr; |
| PRT_WAPI_STA_INFO pWapiSta = NULL; |
| u8 IVOffset, DataOffset, bFindMatchPeer = false, bUseUpdatedKey = false; |
| u8 KeyIdx, MicBuffer[16], lastRxPNforQoS[16]; |
| u8 *pRA, *pTA, *pMicKey, *pDataKey, *pLastRxPN, *pRecvPN, *pSecData, *pRecvMic, *pos; |
| u8 TID = 0; |
| u16 OutputLength, DataLen; |
| u8 bQosData; |
| struct sk_buff *pskb; |
| |
| WAPI_TRACE(WAPI_RX, "=========>%s\n", __FUNCTION__); |
| |
| return 0; |
| |
| precv_hdr = &((union recv_frame *)precv_frame)->u.hdr; |
| pskb = (struct sk_buff *)(precv_hdr->rx_data); |
| precv_hdr->bWapiCheckPNInDecrypt = WapiCheckPnInSwDecrypt(padapter, pskb); |
| WAPI_TRACE(WAPI_RX, "=========>%s: check PN %d\n", __FUNCTION__, precv_hdr->bWapiCheckPNInDecrypt); |
| WAPI_DATA(WAPI_RX, "Decryption - Before decryption", pskb->data, pskb->len); |
| |
| IVOffset = sMacHdrLng; |
| bQosData = GetFrameType(pskb->data) == WIFI_QOS_DATA_TYPE; |
| if (bQosData) |
| IVOffset += 2; |
| |
| /* if(GetHTC()) */ |
| /* IVOffset += 4; */ |
| |
| /* IVOffset += SNAP_SIZE + sizeof(u16); */ |
| |
| DataOffset = IVOffset + padapter->wapiInfo.extra_prefix_len; |
| |
| pRA = pskb->data + 4; |
| pTA = pskb->data + 10; |
| KeyIdx = *(pskb->data + IVOffset); |
| pRecvPN = pskb->data + IVOffset + 2; |
| pSecData = pskb->data + DataOffset; |
| DataLen = pskb->len - DataOffset; |
| pRecvMic = pskb->data + pskb->len - padapter->wapiInfo.extra_postfix_len; |
| TID = GetTid(pskb->data); |
| |
| if (!list_empty(&(pWapiInfo->wapiSTAUsedList))) { |
| list_for_each_entry(pWapiSta, &pWapiInfo->wapiSTAUsedList, list) { |
| if (0 == memcmp(pWapiSta->PeerMacAddr, pTA, 6)) { |
| bFindMatchPeer = true; |
| break; |
| } |
| } |
| } |
| |
| if (!bFindMatchPeer) { |
| WAPI_TRACE(WAPI_ERR, "%s: Can not find Peer Sta "MAC_FMT" for Key Info!!!\n", __FUNCTION__, MAC_ARG(pTA)); |
| return false; |
| } |
| |
| if (IS_MCAST(pRA)) { |
| WAPI_TRACE(WAPI_RX, "%s: Multicast decryption !!!\n", __FUNCTION__); |
| if (pWapiSta->wapiMsk.keyId == KeyIdx && pWapiSta->wapiMsk.bSet) { |
| pLastRxPN = pWapiSta->lastRxMulticastPN; |
| if (!WapiComparePN(pRecvPN, pLastRxPN)) { |
| WAPI_TRACE(WAPI_ERR, "%s: MSK PN is not larger than last, Dropped!!!\n", __FUNCTION__); |
| WAPI_DATA(WAPI_ERR, "pRecvPN:", pRecvPN, 16); |
| WAPI_DATA(WAPI_ERR, "pLastRxPN:", pLastRxPN, 16); |
| return false; |
| } |
| |
| memcpy(pLastRxPN, pRecvPN, 16); |
| pMicKey = pWapiSta->wapiMsk.micKey; |
| pDataKey = pWapiSta->wapiMsk.dataKey; |
| } else if (pWapiSta->wapiMskUpdate.keyId == KeyIdx && pWapiSta->wapiMskUpdate.bSet) { |
| WAPI_TRACE(WAPI_RX, "%s: Use Updated MSK for Decryption !!!\n", __FUNCTION__); |
| bUseUpdatedKey = true; |
| memcpy(pWapiSta->lastRxMulticastPN, pRecvPN, 16); |
| pMicKey = pWapiSta->wapiMskUpdate.micKey; |
| pDataKey = pWapiSta->wapiMskUpdate.dataKey; |
| } else { |
| WAPI_TRACE(WAPI_ERR, "%s: Can not find MSK with matched KeyIdx(%d), Dropped !!!\n", __FUNCTION__, KeyIdx); |
| return false; |
| } |
| } else { |
| WAPI_TRACE(WAPI_RX, "%s: Unicast decryption !!!\n", __FUNCTION__); |
| if (pWapiSta->wapiUsk.keyId == KeyIdx && pWapiSta->wapiUsk.bSet) { |
| WAPI_TRACE(WAPI_RX, "%s: Use USK for Decryption!!!\n", __FUNCTION__); |
| if (precv_hdr->bWapiCheckPNInDecrypt) { |
| if (GetFrameType(pskb->data) == WIFI_QOS_DATA_TYPE) { |
| WapiGetLastRxUnicastPNForQoSData(TID, pWapiSta, lastRxPNforQoS); |
| pLastRxPN = lastRxPNforQoS; |
| } else |
| pLastRxPN = pWapiSta->lastRxUnicastPN; |
| if (!WapiComparePN(pRecvPN, pLastRxPN)) |
| return false; |
| if (bQosData) |
| WapiSetLastRxUnicastPNForQoSData(TID, pRecvPN, pWapiSta); |
| else |
| memcpy(pWapiSta->lastRxUnicastPN, pRecvPN, 16); |
| } else |
| memcpy(precv_hdr->WapiTempPN, pRecvPN, 16); |
| |
| if (check_fwstate(&padapter->mlmepriv, WIFI_STATION_STATE)) { |
| if ((pRecvPN[0] & 0x1) == 0) { |
| WAPI_TRACE(WAPI_ERR, "%s: Rx USK PN is not odd when Infra STA mode, Dropped !!!\n", __FUNCTION__); |
| return false; |
| } |
| } |
| |
| pMicKey = pWapiSta->wapiUsk.micKey; |
| pDataKey = pWapiSta->wapiUsk.dataKey; |
| } else if (pWapiSta->wapiUskUpdate.keyId == KeyIdx && pWapiSta->wapiUskUpdate.bSet) { |
| WAPI_TRACE(WAPI_RX, "%s: Use Updated USK for Decryption!!!\n", __FUNCTION__); |
| if (pWapiSta->bAuthenticatorInUpdata) |
| bUseUpdatedKey = true; |
| else |
| bUseUpdatedKey = false; |
| |
| if (bQosData) |
| WapiSetLastRxUnicastPNForQoSData(TID, pRecvPN, pWapiSta); |
| else |
| memcpy(pWapiSta->lastRxUnicastPN, pRecvPN, 16); |
| pMicKey = pWapiSta->wapiUskUpdate.micKey; |
| pDataKey = pWapiSta->wapiUskUpdate.dataKey; |
| } else { |
| 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); |
| /* dump_buf(pskb->data,pskb->len); */ |
| return false; |
| } |
| } |
| |
| WAPI_DATA(WAPI_RX, "Decryption - DataKey", pDataKey, 16); |
| WAPI_DATA(WAPI_RX, "Decryption - IV", pRecvPN, 16); |
| WapiSMS4Decryption(pDataKey, pRecvPN, pSecData, DataLen, pSecData, &OutputLength); |
| |
| if (OutputLength != DataLen) |
| WAPI_TRACE(WAPI_ERR, "%s: Output Length Error!!!!\n", __FUNCTION__); |
| |
| WAPI_DATA(WAPI_RX, "Decryption - After decryption", pskb->data, pskb->len); |
| |
| DataLen -= padapter->wapiInfo.extra_postfix_len; |
| |
| SecCalculateMicSMS4(KeyIdx, pMicKey, pskb->data, pSecData, DataLen, MicBuffer); |
| |
| WAPI_DATA(WAPI_RX, "Decryption - MIC received", pRecvMic, SMS4_MIC_LEN); |
| WAPI_DATA(WAPI_RX, "Decryption - MIC calculated", MicBuffer, SMS4_MIC_LEN); |
| |
| if (0 == memcmp(MicBuffer, pRecvMic, padapter->wapiInfo.extra_postfix_len)) { |
| WAPI_TRACE(WAPI_RX, "%s: Check MIC OK!!\n", __FUNCTION__); |
| if (bUseUpdatedKey) { |
| /* delete the old key */ |
| if (IS_MCAST(pRA)) { |
| WAPI_TRACE(WAPI_API, "%s(): AE use new update MSK!!\n", __FUNCTION__); |
| pWapiSta->wapiMsk.keyId = pWapiSta->wapiMskUpdate.keyId; |
| memcpy(pWapiSta->wapiMsk.dataKey, pWapiSta->wapiMskUpdate.dataKey, 16); |
| memcpy(pWapiSta->wapiMsk.micKey, pWapiSta->wapiMskUpdate.micKey, 16); |
| pWapiSta->wapiMskUpdate.bTxEnable = pWapiSta->wapiMskUpdate.bSet = false; |
| } else { |
| WAPI_TRACE(WAPI_API, "%s(): AE use new update USK!!\n", __FUNCTION__); |
| pWapiSta->wapiUsk.keyId = pWapiSta->wapiUskUpdate.keyId; |
| memcpy(pWapiSta->wapiUsk.dataKey, pWapiSta->wapiUskUpdate.dataKey, 16); |
| memcpy(pWapiSta->wapiUsk.micKey, pWapiSta->wapiUskUpdate.micKey, 16); |
| pWapiSta->wapiUskUpdate.bTxEnable = pWapiSta->wapiUskUpdate.bSet = false; |
| } |
| } |
| } else { |
| WAPI_TRACE(WAPI_ERR, "%s: Check MIC Error, Dropped !!!!\n", __FUNCTION__); |
| return false; |
| } |
| |
| pos = pskb->data; |
| memmove(pos + padapter->wapiInfo.extra_prefix_len, pos, IVOffset); |
| skb_pull(pskb, padapter->wapiInfo.extra_prefix_len); |
| |
| WAPI_TRACE(WAPI_RX, "<=========%s\n", __FUNCTION__); |
| |
| return true; |
| } |
| |
| u32 rtw_sms4_encrypt(_adapter *padapter, u8 *pxmitframe) |
| { |
| |
| u8 *pframe; |
| u32 res = _SUCCESS; |
| |
| WAPI_TRACE(WAPI_TX, "=========>%s\n", __FUNCTION__); |
| |
| if ((!padapter->WapiSupport) || (!padapter->wapiInfo.bWapiEnable)) { |
| WAPI_TRACE(WAPI_TX, "<========== %s, WAPI not supported or enabled!\n", __FUNCTION__); |
| return _FAIL; |
| } |
| |
| if (((struct xmit_frame *)pxmitframe)->buf_addr == NULL) |
| return _FAIL; |
| |
| pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + TXDESC_OFFSET; |
| |
| SecSWSMS4Encryption(padapter, pxmitframe); |
| |
| WAPI_TRACE(WAPI_TX, "<=========%s\n", __FUNCTION__); |
| return res; |
| } |
| |
| u32 rtw_sms4_decrypt(_adapter *padapter, u8 *precvframe) |
| { |
| u8 *pframe; |
| u32 res = _SUCCESS; |
| |
| WAPI_TRACE(WAPI_RX, "=========>%s\n", __FUNCTION__); |
| |
| if ((!padapter->WapiSupport) || (!padapter->wapiInfo.bWapiEnable)) { |
| WAPI_TRACE(WAPI_RX, "<========== %s, WAPI not supported or enabled!\n", __FUNCTION__); |
| return _FAIL; |
| } |
| |
| |
| /* drop packet when hw decrypt fail |
| * return tempraily */ |
| return _FAIL; |
| |
| /* pframe=(unsigned char *)((union recv_frame*)precvframe)->u.hdr.rx_data; */ |
| |
| if (false == SecSWSMS4Decryption(padapter, precvframe, &padapter->recvpriv)) { |
| WAPI_TRACE(WAPI_ERR, "%s():SMS4 decrypt frame error\n", __FUNCTION__); |
| return _FAIL; |
| } |
| |
| WAPI_TRACE(WAPI_RX, "<=========%s\n", __FUNCTION__); |
| return res; |
| } |
| |
| #else |
| |
| u32 rtw_sms4_encrypt(_adapter *padapter, u8 *pxmitframe) |
| { |
| WAPI_TRACE(WAPI_TX, "=========>Dummy %s\n", __FUNCTION__); |
| WAPI_TRACE(WAPI_TX, "<=========Dummy %s\n", __FUNCTION__); |
| return _SUCCESS; |
| } |
| |
| u32 rtw_sms4_decrypt(_adapter *padapter, u8 *precvframe) |
| { |
| WAPI_TRACE(WAPI_RX, "=========>Dummy %s\n", __FUNCTION__); |
| WAPI_TRACE(WAPI_RX, "<=========Dummy %s\n", __FUNCTION__); |
| return _SUCCESS; |
| } |
| |
| #endif |
| |
| #endif |