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shchmue 2018-12-07 20:17:01 -05:00
commit 34b960b774
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source/KeyLocation.cpp Normal file
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/*
* Copyright (c) 2018 shchmue
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "KeyLocation.hpp"
#include <filesystem>
#include <fstream>
#include "creport_debug_types.hpp"
void KeyLocation::get_from_memory(u64 tid, u8 segMask) {
Handle debug_handle = INVALID_HANDLE;
DebugEventInfo d;
// if not a kernel process, get pid from pm:dmnt
if ((tid > 0x0100000000000005) && (tid != 0x0100000000000028)) {
u64 pid;
pmdmntGetTitlePid(&pid, tid);
if (R_FAILED(svcDebugActiveProcess(&debug_handle, pid)) ||
R_FAILED(svcGetDebugEvent(reinterpret_cast<u8 *>(&d), debug_handle)))
{
return;
}
} else { // otherwise query svc for the process list
u64 pids[300];
u32 num_processes;
svcGetProcessList(&num_processes, pids, 300);
u32 i;
for (i = 0; i < num_processes - 1; i++) {
if (R_SUCCEEDED(svcDebugActiveProcess(&debug_handle, pids[i])) &&
R_SUCCEEDED(svcGetDebugEvent(reinterpret_cast<u8 *>(&d), debug_handle)) &&
(d.info.attach_process.title_id == tid))
{
break;
}
if (debug_handle) svcCloseHandle(debug_handle);
}
if (i == num_processes - 1) {
if (debug_handle) svcCloseHandle(debug_handle);
return;
}
}
MemoryInfo mem_info = {};
u32 page_info;
u64 addr = 0;
for (u8 segment = 1; segment < BIT(3); )
{
svcQueryDebugProcessMemory(&mem_info, &page_info, debug_handle, addr);
// weird code to allow for bitmasking segments
if ((mem_info.perm & Perm_R) &&
((mem_info.type & 0xff) >= MemType_CodeStatic) &&
((mem_info.type & 0xff) < MemType_Heap) &&
((segment <<= 1) >> 1 & segMask) > 0)
{
data.resize(data.size() + mem_info.size);
if(R_FAILED(svcReadDebugProcessMemory(data.data() + data.size() - mem_info.size, debug_handle, mem_info.addr, mem_info.size))) {
if (debug_handle) svcCloseHandle(debug_handle);
return;
}
}
addr = mem_info.addr + mem_info.size;
if (addr == 0) break;
}
svcCloseHandle(debug_handle);
}
void KeyLocation::get_keyblobs() {
FsStorage boot0;
fsOpenBisStorage(&boot0, 0);
data.resize(0x200 * KNOWN_KEYBLOBS);
fsStorageRead(&boot0, KEYBLOB_OFFSET, data.data(), data.size());
fsStorageClose(&boot0);
}