mirror of
https://github.com/hrydgard/ppsspp.git
synced 2026-07-11 17:45:11 +02:00
Henrik Rydgård
563 lines
14 KiB
C++
563 lines
14 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#include "Core/MemMapHelpers.h"
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#include "Core/HLE/HLE.h"
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#include "Core/HLE/FunctionWrappers.h"
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#include "Core/HLE/sceChnnlsv.h"
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#include "Core/HLE/sceKernel.h"
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static KirkState g_kirk;
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KirkState *__ChnnlsvKirkState() {
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return &g_kirk;
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}
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static u8 dataBuf[2048+20];
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static u8 *dataBuf2 = dataBuf + 20;
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static const u8 hash198C[16] = {0xFA, 0xAA, 0x50, 0xEC, 0x2F, 0xDE, 0x54, 0x93, 0xAD, 0x14, 0xB2, 0xCE, 0xA5, 0x30, 0x05, 0xDF};
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static const u8 hash19BC[16] = {0xCB, 0x15, 0xF4, 0x07, 0xF9, 0x6A, 0x52, 0x3C, 0x04, 0xB9, 0xB2, 0xEE, 0x5C, 0x53, 0xFA, 0x86};
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static const u8 key19CC[16] = {0x70, 0x44, 0xA3, 0xAE, 0xEF, 0x5D, 0xA5, 0xF2, 0x85, 0x7F, 0xF2, 0xD6, 0x94, 0xF5, 0x36, 0x3B};
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static const u8 key19DC[16] = {0xEC, 0x6D, 0x29, 0x59, 0x26, 0x35, 0xA5, 0x7F, 0x97, 0x2A, 0x0D, 0xBC, 0xA3, 0x26, 0x33, 0x00};
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static const u8 key199C[16] = {0x36, 0xA5, 0x3E, 0xAC, 0xC5, 0x26, 0x9E, 0xA3, 0x83, 0xD9, 0xEC, 0x25, 0x6C, 0x48, 0x48, 0x72};
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static const u8 key19AC[16] = {0xD8, 0xC0, 0xB0, 0xF3, 0x3E, 0x6B, 0x76, 0x85, 0xFD, 0xFB, 0x4D, 0x7D, 0x45, 0x1E, 0x92, 0x03};
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static void *memxor(void * dest, const void * src, size_t n)
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{
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char const *s = (char const*)src;
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char *d = (char*)dest;
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for (; n > 0; n--)
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*d++ ^= *s++;
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return dest;
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}
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// The reason for the values from *FromMode calculations are not known.
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static int numFromMode(int mode)
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{
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int num = 0;
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switch(mode)
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{
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case 1:
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num = 3;
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break;
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case 2:
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num = 5;
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break;
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case 3:
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num = 12;
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break;
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case 4:
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num = 13;
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break;
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case 6:
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num = 17;
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break;
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default:
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num = 16;
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break;
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}
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return num;
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}
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static int numFromMode2(int mode)
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{
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int num = 18;
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if (mode == 1)
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num = 4;
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else if (mode == 3)
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num = 14;
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return num;
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}
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static int typeFromMode(int mode)
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{
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return (mode == 1 || mode == 2) ? 83 :
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((mode == 3 || mode == 4) ? 87 : 100);
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}
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static int kirkSendCmd(KirkState *kirk, u8* data, int length, int num, bool encrypt)
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{
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*(int*)(data+0) = encrypt ? KIRK_MODE_ENCRYPT_CBC : KIRK_MODE_DECRYPT_CBC;
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*(int*)(data+4) = 0;
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*(int*)(data+8) = 0;
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*(int*)(data+12) = num;
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*(int*)(data+16) = length;
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if (kirk_sceUtilsBufferCopyWithRange(kirk, data, length + 20, data, length + 20, encrypt ? KIRK_CMD_ENCRYPT_IV_0 : KIRK_CMD_DECRYPT_IV_0))
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return -257;
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return 0;
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}
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static int kirkSendFuseCmd(KirkState *kirk, u8* data, int length, bool encrypt)
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{
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*(int*)(data+0) = encrypt ? KIRK_MODE_ENCRYPT_CBC : KIRK_MODE_DECRYPT_CBC;
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*(int*)(data+4) = 0;
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*(int*)(data+8) = 0;
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*(int*)(data+12) = 256;
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*(int*)(data+16) = length;
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// Note: CMD 5 and 8 are not available, will always return -1
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if (kirk_sceUtilsBufferCopyWithRange(kirk, data, length + 20, data, length + 20, encrypt ? KIRK_CMD_ENCRYPT_IV_FUSE : KIRK_CMD_DECRYPT_IV_FUSE))
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return -258;
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return 0;
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}
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static int sub_15B0(KirkState *kirk, u8* data, int alignedLen, u8* buf, int val)
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{
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u8 sp0[16];
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memcpy(sp0, data+alignedLen+4, 16);
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int res = kirkSendCmd(kirk, data, alignedLen, val, false);
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if (res)
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return res;
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memxor(data, buf, 16);
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memcpy(buf, sp0, 16);
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return 0;
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}
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static int sub_0000(KirkState *kirk, u8* data_out, u8* data, int alignedLen, const u8* data2, int& data3, int mode)
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{
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memcpy(data_out+20, data2, 16);
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// Mode 1:2 is 83, 3:4 is 87, 5:6 is 100
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int type = typeFromMode(mode);
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int res;
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if (type == 87)
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memxor(data_out+20, key19AC, 16);
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else if (type == 100)
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memxor(data_out+20, key19DC, 16);
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// Odd is Cmd, Even is FuseCmd
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switch(mode)
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{
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case 2: case 4: case 6: res = kirkSendFuseCmd(kirk, data_out, 16, false);
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break;
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case 1: case 3: default:res = kirkSendCmd(kirk, data_out, 16, numFromMode2(mode), false);
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break;
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}
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if (type == 87)
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memxor(data_out, key199C, 16);
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else if (type == 100)
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memxor(data_out, key19CC, 16);
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if (res)
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return res;
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u8 sp0[16], sp16[16];
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memcpy(sp16, data_out, 16);
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if (data3 == 1)
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{
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memset(sp0, 0, 16);
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}
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else
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{
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memcpy(sp0, sp16, 12);
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*(u32*)(sp0+12) = data3-1;
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}
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if (alignedLen > 0)
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{
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for(int i = 20; i < alignedLen + 20; i += 16)
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{
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memcpy(data_out+i, sp16, 12);
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*(u32*)(data_out+12+i) = data3;
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data3++;
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}
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}
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res = sub_15B0(kirk, data_out, alignedLen, sp0, type);
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if (res)
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return res;
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if (alignedLen > 0)
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memxor(data, data_out, alignedLen);
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return 0;
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}
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static int sub_1510(KirkState *kirk, u8* data, int size, u8* result , int num)
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{
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memxor(data+20, result, 16);
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int res = kirkSendCmd(kirk, data, size, num, true);
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if(res)
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return res;
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memcpy(result, data+size+4, 16);
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return 0;
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}
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static int sub_17A8(KirkState *kirk, u8* data)
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{
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if (kirk_sceUtilsBufferCopyWithRange(kirk, data, 20, 0, 0, 14) == 0)
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return 0;
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return -261;
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}
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static int sceSdGetLastIndex(u32 addressCtx, u32 addressHash, u32 addressKey) {
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auto ctx = PSPPointer<pspChnnlsvContext1>::Create(addressCtx);
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u8 *hash = Memory::GetPointerWrite(addressHash);
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if (!ctx.IsValid() || !hash)
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return hleLogError(Log::sceMisc, 0, "Invalid pointer");
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return hleLogDebug(Log::sceMisc, sceSdMacFinal(*ctx, hash, Memory::GetPointerWrite(addressKey)));
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}
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int sceSdMacFinal(pspChnnlsvContext1& ctx, u8* in_hash, const u8* in_key)
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{
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if(ctx.keyLength >= 17)
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return -1026;
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int num = numFromMode(ctx.mode);
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memset(dataBuf2, 0, 16);
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int res = kirkSendCmd(&g_kirk, dataBuf, 16, num, true);
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if(res)
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return res;
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u8 data1[16], data2[16];
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memcpy(data1, dataBuf2, 16);
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int tmp1 = (data1[0] & 0x80) ? 135 : 0;
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for(int i = 0; i < 15; i++)
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{
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u8 val1 = data1[i] << 1;
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u8 val2 = data1[i+1] >> 7;
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data1[i] = val1 | val2;
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}
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u8 tmp2 = data1[15] << 1;
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tmp2 = tmp1 ^ tmp2;
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data1[15] = tmp2;
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if(ctx.keyLength < 16)
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{
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tmp1 = 0;
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if((s8)data1[0] < 0)
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{
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tmp1 = 135;
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}
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for(int i = 0; i < 15; i++)
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{
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u8 val1 = data1[i] << 1;
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u8 val2 = data1[i+1] >> 7;
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data1[i] = val1 | val2;
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}
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u8 tmp2 = data1[15] << 1;
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tmp2 = tmp1 ^ tmp2;
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data1[15] = tmp2;
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int oldKeyLength = ctx.keyLength;
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*(s8*)(ctx.key + ctx.keyLength) = -128;
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int i = oldKeyLength + 1;
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if(i < 16)
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memset(ctx.key + i, 0, 16 - i);
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}
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memxor(ctx.key, data1, 16);
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memcpy(dataBuf2, ctx.key, 16);
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memcpy(data2, ctx.result, 16);
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int ret = sub_1510(&g_kirk, dataBuf, 16, data2, num);
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if(ret)
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return ret;
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if(ctx.mode == 3 || ctx.mode == 4)
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memxor(data2, hash198C, 16);
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else if(ctx.mode == 5 || ctx.mode == 6)
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memxor(data2, hash19BC, 16);
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int cond = ((ctx.mode ^ 0x2) < 1 || (ctx.mode ^ 0x4) < 1 || ctx.mode == 6);
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if(cond != 0)
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{
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memcpy(dataBuf2, data2, 16);
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int ret = kirkSendFuseCmd(&g_kirk, dataBuf, 16, true);
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if(ret)
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return ret;
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int res = kirkSendCmd(&g_kirk, dataBuf, 16, num, true);
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if(res)
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return res;
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memcpy(data2, dataBuf2, 16);
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}
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if(in_key != 0)
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{
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for(int i = 0; i < 16; i++)
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{
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data2[i] = in_key[i] ^ data2[i];
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}
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memcpy(dataBuf2, data2, 16);
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int res = kirkSendCmd(&g_kirk, dataBuf, 16, num, true);
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if(res)
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return res;
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memcpy(data2, dataBuf2, 16);
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}
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memcpy(in_hash, data2, 16);
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sceSdMacInit(ctx, 0);
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return 0;
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}
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static int sceSdSetIndex(u32 addressCtx, int value) {
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auto ctx = PSPPointer<pspChnnlsvContext1>::Create(addressCtx);
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if (!ctx.IsValid())
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return hleLogError(Log::sceMisc, 0, "Invalid pointer");
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return hleLogDebug(Log::sceMisc, sceSdMacInit(*ctx, value));
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}
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int sceSdMacInit(pspChnnlsvContext1& ctx, int value)
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{
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ctx.mode = value;
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memset(ctx.result, 0, 16);
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memset(ctx.key, 0, 16);
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ctx.keyLength = 0;
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return 0;
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}
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static int sceSdRemoveValue(u32 addressCtx, u32 addressData, int length) {
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auto ctx = PSPPointer<pspChnnlsvContext1>::Create(addressCtx);
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if (!ctx.IsValid() || !Memory::IsValidAddress(addressData))
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return hleLogError(Log::sceMisc, 0, "Invalid pointer");
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return hleLogDebug(Log::sceMisc, sceSdMacUpdate(*ctx, Memory::GetPointerWrite(addressData), length));
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}
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int sceSdMacUpdate(pspChnnlsvContext1& ctx, const u8* data, int length)
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{
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if(ctx.keyLength >= 17)
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return -1026;
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if(ctx.keyLength + length < 17)
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{
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memcpy(ctx.key+ctx.keyLength, data, length);
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ctx.keyLength = ctx.keyLength + length;
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return 0;
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}
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int num = numFromMode(ctx.mode);
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memset(dataBuf2, 0, 2048);
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memcpy(dataBuf2, ctx.key, ctx.keyLength);
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int len = (ctx.keyLength + length) & 0xF;
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if(len == 0) len = 16;
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int newSize = ctx.keyLength;
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ctx.keyLength = len;
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int diff = length - len;
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memcpy(ctx.key, data+diff, len);
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for(int i = 0; i < diff; i++)
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{
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if(newSize == 2048)
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{
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int res = sub_1510(&g_kirk, dataBuf, 2048, ctx.result, num);
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if(res)
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return res;
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newSize = 0;
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}
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dataBuf2[newSize] = data[i];
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newSize++;
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}
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if(newSize)
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sub_1510(&g_kirk, dataBuf, newSize, ctx.result, num);
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// The RE code showed this always returning 0. I suspect it would want to return res instead.
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return 0;
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}
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static int sceSdCreateList(u32 ctx2Addr, int mode, int unkwn, u32 dataAddr, u32 cryptkeyAddr) {
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auto ctx2 = PSPPointer<pspChnnlsvContext2>::Create(ctx2Addr);
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u8* data = Memory::GetPointerWrite(dataAddr);
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u8* cryptkey = Memory::GetPointerWrite(cryptkeyAddr);
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if (!ctx2.IsValid() || !data)
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return hleLogError(Log::sceMisc, 0, "Invalid pointer");
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return hleLogDebug(Log::sceMisc, sceSdCipherInit(*ctx2, mode, unkwn, data, cryptkey));
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}
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int sceSdCipherInit(pspChnnlsvContext2& ctx2, int mode, int uknw, u8* data, const u8* cryptkey)
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{
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ctx2.mode = mode;
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ctx2.unkn = 1;
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if (uknw == 2)
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{
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memcpy(ctx2.cryptedData, data, 16);
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if (cryptkey)
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memxor(ctx2.cryptedData, cryptkey, 16);
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return 0;
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}
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else if (uknw == 1)
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{
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u8 kirkHeader[37];
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u8* kirkData = kirkHeader+20;
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int res = sub_17A8(&g_kirk, kirkHeader);
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if (res)
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return res;
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memcpy(kirkHeader+20, kirkHeader, 16);
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memset(kirkHeader+32, 0, 4);
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int type = typeFromMode(mode);
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if (type == 87)
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memxor(kirkData, key199C, 16);
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else if (type == 100)
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memxor(kirkData, key19CC, 16);
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switch (mode)
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{
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case 2: case 4: case 6: res = kirkSendFuseCmd(&g_kirk, kirkHeader, 16, true);
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break;
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case 1: case 3: default:res = kirkSendCmd(&g_kirk, kirkHeader, 16, numFromMode2(mode), true);
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break;
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}
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if (type == 87)
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memxor(kirkData, key19AC, 16);
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else if (type == 100)
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memxor(kirkData, key19DC, 16);
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if (res)
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return res;
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memcpy(ctx2.cryptedData, kirkData, 16);
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memcpy(data, kirkData, 16);
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if (cryptkey)
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memxor(ctx2.cryptedData, cryptkey, 16);
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}
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return 0;
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}
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static int sceSdSetMember(u32 ctxAddr, u32 dataAddr, int alignedLen) {
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auto ctx = PSPPointer<pspChnnlsvContext2>::Create(ctxAddr);
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u8 *data = Memory::GetPointerWrite(dataAddr);
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if (!ctx.IsValid() || !data)
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return hleLogError(Log::sceMisc, 0, "Invalid pointer");
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return hleLogDebug(Log::sceMisc, sceSdCipherUpdate(*ctx, data, alignedLen));
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}
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int sceSdCipherUpdate(pspChnnlsvContext2& ctx, u8* data, int alignedLen)
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{
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if (alignedLen == 0)
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{
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return 0;
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}
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if ((alignedLen & 0xF) != 0)
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{
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return -1025;
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}
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int i = 0;
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u8 kirkData[20+2048];
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if ((u32)alignedLen >= (u32)2048)
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{
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for(i = 0; alignedLen >= 2048; i += 2048)
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{
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int ctx_unkn = ctx.unkn;
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int res = sub_0000(&g_kirk, kirkData, data + i, 2048, ctx.cryptedData, ctx_unkn, ctx.mode);
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ctx.unkn = ctx_unkn;
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alignedLen -= 2048;
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if (res)
|
|
return res;
|
|
}
|
|
}
|
|
if (alignedLen == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
int ctx_unkn = ctx.unkn;
|
|
int res = sub_0000(&g_kirk, kirkData, data + i, alignedLen, ctx.cryptedData, ctx_unkn, ctx.mode);
|
|
ctx.unkn = ctx_unkn;
|
|
return res;
|
|
}
|
|
|
|
static int sceSdCleanList(u32 ctxAddr) {
|
|
auto ctx = PSPPointer<pspChnnlsvContext2>::Create(ctxAddr);
|
|
if (!ctx.IsValid())
|
|
return hleLogError(Log::sceMisc, 0, "Invalid pointer");
|
|
return hleLogDebug(Log::sceMisc, sceSdCipherFinal(*ctx));
|
|
}
|
|
|
|
int sceSdCipherFinal(pspChnnlsvContext2& ctx)
|
|
{
|
|
memset(ctx.cryptedData, 0, 16);
|
|
ctx.unkn = 0;
|
|
ctx.mode = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const HLEFunction sceChnnlsv[] =
|
|
{
|
|
{0XE7833020, &WrapI_UI<sceSdSetIndex>, "sceSdSetIndex", 'i', "xi" },
|
|
{0XF21A1FCA, &WrapI_UUI<sceSdRemoveValue>, "sceSdRemoveValue", 'i', "xxi" },
|
|
{0XC4C494F8, &WrapI_UUU<sceSdGetLastIndex>, "sceSdGetLastIndex", 'i', "xxx" },
|
|
{0XABFDFC8B, &WrapI_UIIUU<sceSdCreateList>, "sceSdCreateList", 'i', "xiixx"},
|
|
{0X850A7FA1, &WrapI_UUI<sceSdSetMember>, "sceSdSetMember", 'i', "xxi" },
|
|
{0X21BE78B4, &WrapI_U<sceSdCleanList>, "sceSdCleanList", 'i', "x" },
|
|
};
|
|
|
|
void Register_sceChnnlsv()
|
|
{
|
|
RegisterHLEModule("sceChnnlsv", ARRAY_SIZE(sceChnnlsv), sceChnnlsv);
|
|
kirk_init(&g_kirk);
|
|
}
|
|
|
|
// The below functions don't really belong to sceKernelSemaphore. They are the core crypto functionality,
|
|
// exposed through the confusingly named "sceUtilsBufferCopyWithRange" name, which Sony placed in the
|
|
// not-at-all-suspicious "semaphore" library, which has nothing to do with semaphores.
|
|
|
|
static u32 sceUtilsBufferCopyWithRange(u32 outAddr, int outSize, u32 inAddr, int inSize, int cmd) {
|
|
u8 *outAddress = Memory::IsValidRange(outAddr, outSize) ? Memory::GetPointerWriteUnchecked(outAddr) : nullptr;
|
|
u8 *inAddress = Memory::IsValidRange(inAddr, inSize) ? Memory::GetPointerWriteUnchecked(inAddr) : nullptr;
|
|
int temp = kirk_sceUtilsBufferCopyWithRange(&g_kirk, outAddress, outSize, inAddress, inSize, cmd);
|
|
if (temp != 0) {
|
|
ERROR_LOG(Log::sceKernel, "hleUtilsBufferCopyWithRange: Failed with %d", temp);
|
|
}
|
|
return hleNoLog(0);
|
|
}
|
|
|
|
// Note sure what difference there is between this and sceUtilsBufferCopyWithRange.
|
|
static int sceUtilsBufferCopyByPollingWithRange(u32 outAddr, int outSize, u32 inAddr, int inSize, int cmd) {
|
|
u8 *outAddress = Memory::IsValidRange(outAddr, outSize) ? Memory::GetPointerWriteUnchecked(outAddr) : nullptr;
|
|
u8 *inAddress = Memory::IsValidRange(inAddr, inSize) ? Memory::GetPointerWriteUnchecked(inAddr) : nullptr;
|
|
return hleNoLog(kirk_sceUtilsBufferCopyWithRange(&g_kirk, outAddress, outSize, inAddress, inSize, cmd));
|
|
}
|
|
|
|
const HLEFunction semaphore[] = {
|
|
{0x4C537C72, &WrapU_UIUII<sceUtilsBufferCopyWithRange>, "sceUtilsBufferCopyWithRange", 'x', "xixii" },
|
|
{0x77E97079, &WrapI_UIUII<sceUtilsBufferCopyByPollingWithRange>, "sceUtilsBufferCopyByPollingWithRange", 'i', "xixii" },
|
|
};
|
|
|
|
void Register_semaphore() {
|
|
RegisterHLEModule("semaphore", ARRAY_SIZE(semaphore), semaphore);
|
|
}
|