mirror of
https://github.com/hrydgard/ppsspp.git
synced 2024-11-23 21:39:52 +00:00
136 lines
3.8 KiB
C++
136 lines
3.8 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 "zlib.h"
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#include <stdio.h>
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#include "Core/MemMap.h"
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#include "Core/System.h"
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#include "Core/FileSystems/MetaFileSystem.h"
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#include "Core/HLE/scePauth.h"
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#include "Core/HLE/HLE.h"
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#include "Core/HLE/FunctionWrappers.h"
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#include "Common/FileUtil.h"
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static int scePauth_F7AA47F6(u32 srcPtr, int srcLength, u32 destLengthPtr, u32 workArea)
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{
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u8 *src, *key;
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u32 crc;
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char name[256];
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std::string hostPath;
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FILE *fp;
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int size;
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INFO_LOG(HLE, "scePauth_F7AA47F6(%08x, %08x, %08x, %08x)", srcPtr, srcLength, destLengthPtr, workArea);
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sprintf(name, "ms0:/PAUTH");
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pspFileSystem.GetHostPath(std::string(name), hostPath);
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src = (u8*)Memory::GetPointer(srcPtr);
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key = (u8*)Memory::GetPointer(workArea);
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crc = crc32(0, src, srcLength);
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sprintf(name, "%s/pauth_%08x.bin.decrypt", hostPath.c_str(), crc);
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fp = File::OpenCFile(name, "rb");
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if (fp){
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fseek(fp, 0, SEEK_END);
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size = ftell(fp);
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fseek(fp, 0, SEEK_SET);
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fread(src, 1, size, fp);
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fclose(fp);
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Memory::Write_U32(size, destLengthPtr);
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INFO_LOG(HLE, "Read from decrypted file %s", name);
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return 0;
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}
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pspFileSystem.MkDir("ms0:/PAUTH");
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sprintf(name, "%s/pauth_%08x.bin", hostPath.c_str(), crc);
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ERROR_LOG(HLE, "No decrypted file found! save as %s", name);
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fp = File::OpenCFile(name, "wb");
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fwrite(src, 1, srcLength, fp);
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fclose(fp);
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sprintf(name, "%s/pauth_%08x.key", hostPath.c_str(), crc);
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fp = File::OpenCFile(name, "wb");
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fwrite(key, 1, 16, fp);
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fclose(fp);
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// We failed decrypting and dumped encrypted files, some games like Idolmaster
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// use this to check for firmware version, so let's still return no problem.
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return 0;
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}
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static int scePauth_98B83B5D(u32 srcPtr, int srcLength, u32 destLengthPtr, u32 workArea)
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{
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u8 *src, *key;
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u32 crc;
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char name[256];
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std::string hostPath;
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FILE *fp;
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int size;
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INFO_LOG(HLE, "scePauth_98B83B5D(%08x, %08x, %08x, %08x)", srcPtr, srcLength, destLengthPtr, workArea);
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sprintf(name, "ms0:/PAUTH");
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pspFileSystem.GetHostPath(std::string(name), hostPath);
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src = (u8*)Memory::GetPointer(srcPtr);
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key = (u8*)Memory::GetPointer(workArea);
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crc = crc32(0, src, srcLength);
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sprintf(name, "%s/pauth_%08x.bin.decrypt", hostPath.c_str(), crc);
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fp = File::OpenCFile(name, "rb");
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if (fp){
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fseek(fp, 0, SEEK_END);
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size = ftell(fp);
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fseek(fp, 0, SEEK_SET);
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fread(src, 1, size, fp);
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fclose(fp);
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Memory::Write_U32(size, destLengthPtr);
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INFO_LOG(HLE, "Read from decrypted file %s", name);
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return 0;
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}
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pspFileSystem.MkDir("ms0:/PAUTH");
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sprintf(name, "%s/pauth_%08x.bin", hostPath.c_str(), crc);
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ERROR_LOG(HLE, "No decrypted file found! save as %s", name);
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fp = File::OpenCFile(name, "wb");
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fwrite(src, 1, srcLength, fp);
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fclose(fp);
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sprintf(name, "%s/pauth_%08x.key", hostPath.c_str(), crc);
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fp = File::OpenCFile(name, "wb");
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fwrite(key, 1, 16, fp);
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fclose(fp);
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return -1;
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}
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const HLEFunction scePauth[] = {
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{0XF7AA47F6, &WrapI_UIUU<scePauth_F7AA47F6>, "scePauth_F7AA47F6", 'i', "xixx"},
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{0X98B83B5D, &WrapI_UIUU<scePauth_98B83B5D>, "scePauth_98B83B5D", 'i', "xixx"},
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};
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void Register_scePauth()
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{
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RegisterModule("scePauth", ARRAY_SIZE(scePauth), scePauth);
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}
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