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implement search_local
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@tomvita
tomvita committed Sep 22, 2020
1 parent 2dc51ba commit 0e99770
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Showing 5 changed files with 180 additions and 33 deletions.
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213 changes: 180 additions & 33 deletions server/source/noexs/source/commands.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -384,41 +384,28 @@ static Result _freeze_address(Gecko::Context& ctx){
return rc;
}

//0x16
static Result _search_local(Gecko::Context& ctx){
u32 id;
u64 addr;
u64 flags;
READ_CHECKED(ctx, id);
READ_CHECKED(ctx, addr);
READ_CHECKED(ctx, flags);
return ctx.dbg.setBreakpoint(id, flags, addr);
}

//0x17
static Result _fetch_result(Gecko::Context& ctx){
u32 id;
u64 addr;
u64 flags;
READ_CHECKED(ctx, id);
READ_CHECKED(ctx, addr);
READ_CHECKED(ctx, flags);
return ctx.dbg.setBreakpoint(id, flags, addr);
}

//0x18
static Result _detach_dmnt(Gecko::Context& ctx){
return dmntchtForceCloseCheatProcess();
}

//0x1A
static Result _attach_dmnt(Gecko::Context& ctx){
return dmntchtForceOpenCheatProcess();
}

static u64 m_heap_start, m_heap_end, m_main_start, m_main_end;
static u8 outbuffer[GECKO_BUFFER_SIZE * 9 / 8];
static FILE* g_memdumpFile = NULL;
// static FILE* g_bookmarkFile = NULL;
#define HEADERSIZE 134
enum t_searchsize {
_8, _16, _32, _64
};
enum t_searchtype {
EQ, RANGE
// GT,NE,
// LT,
// SAME,
// DIFF,
// INC,
// DEC
};
#define outbuffer_offset GECKO_BUFFER_SIZE / 8
#define NEQvalue(t,k) (t)m_value1 != *reinterpret_cast<t *>(&ctx.buffer[i+k])
#define NRGvalue(t,k) (t)m_value1 > *reinterpret_cast<t *>(&ctx.buffer[i+k]) && (t)m_value2 < *reinterpret_cast<t *>(&ctx.buffer[i+k])

static Result getmeminfo(Gecko::Context& ctx) {
Result rc = 0;
Expand Down Expand Up @@ -527,6 +514,168 @@ static Result process(Gecko::Context &ctx, u64 m_start, u64 m_end) {
return rc;
}

static Result processlocal(Gecko::Context &ctx, u64 m_start, u64 m_end, u64 m_value1, u64 m_value2, t_searchsize searchsize, t_searchtype searchtype) {
Result rc = 0;
u32 size, len;
u64 addr, from, to;
MemoryInfo info = {};
u32 out_index = 0;
addr = m_start;
u8 cont = 1;
printf("processing local m_start = %lx m_end = %lx m_value1 = %lx m_value2 = %lx searchsize = %x searchtype = %x\n", m_start, m_end, m_value1, m_value2, (u8)searchsize, (u8)searchtype);
while (addr < m_end) {
if (dmnt)
rc = dmntchtQueryCheatProcessMemory(&info, addr);
else
rc = ctx.dbg.query(&info, addr);
size = info.size;
if (info.perm == Perm_Rw) {
// printf("addr = %lx size = %x \n", addr, size);
while (size > 0) {
len = (size < GECKO_BUFFER_SIZE) ? size : GECKO_BUFFER_SIZE;
// printf("size = %x len = %x\n", size, len);
if (dmnt)
rc = dmntchtReadCheatProcessMemory(addr, ctx.buffer, len);
else
rc = ctx.dbg.readMem(ctx.buffer, addr, len);
// WRITE_CHECKED(ctx, rc);
if (R_FAILED(rc)) {
printf("break1 rc= %x \n", (int)rc);
break;
}
// screening
for (u32 i = 0; i < len; i += 8) {
switch (searchsize) {
case _8:
switch (searchtype) {
case EQ:
if (NEQvalue(u8, 0) && NEQvalue(u8, 1) && NEQvalue(u8, 2) && NEQvalue(u8, 3) && NEQvalue(u8, 4) && NEQvalue(u8, 5) && NEQvalue(u8, 6) && NEQvalue(u8, 7))
continue;
break;
case RANGE:
if (NRGvalue(u8, 0) && NRGvalue(u8, 1) && NRGvalue(u8, 2) && NRGvalue(u8, 3) && NRGvalue(u8, 4) && NRGvalue(u8, 5) && NRGvalue(u8, 6) && NRGvalue(u8, 7))
continue;
break;
}
break;
case _16:
switch (searchtype) {
case EQ:
if (NEQvalue(u16, 0) && NEQvalue(u16, 2) && NEQvalue(u16, 4) && NEQvalue(u16, 6))
continue;
break;
case RANGE:
if (NRGvalue(u16, 0) && NRGvalue(u16, 2) && NRGvalue(u16, 4) && NRGvalue(u16, 6))
continue;
break;
}
break;
case _32:
switch (searchtype) {
case EQ:
if (NEQvalue(u32, 0) && NEQvalue(u32, 4))
continue;
break;
case RANGE:
if (NRGvalue(u32, 0) && NRGvalue(u32, 4))
continue;
break;
}
break;
case _64:
switch (searchtype) {
case EQ:
if (NEQvalue(u64, 0))
continue;
break;
case RANGE:
if (NRGvalue(u64, 0))
continue;
break;
}
break;
}
to = *reinterpret_cast<u64 *>(&ctx.buffer[i]);
// if (screen(to))
{
from = addr + i;
// Fill buffer
*reinterpret_cast<u64 *>(&outbuffer[outbuffer_offset + out_index]) = from;
*reinterpret_cast<u64 *>(&outbuffer[outbuffer_offset + out_index + 8]) = to;
out_index += 16;
if (out_index == GECKO_BUFFER_SIZE) {
// printf("ready to write\n");
s32 count = out_index;
// compress option
count = LZ_Compress(outbuffer + outbuffer_offset, outbuffer, out_index);
//
WRITE_CHECKED(ctx, count);
WRITE_BUFFER_CHECKED(ctx, outbuffer, count);
READ_CHECKED(ctx, cont);
if (!cont) {
WRITE_CHECKED(ctx, 0);
return USER_ABORT;
}
out_index = 0;
}
}
}
if (R_FAILED(rc)) {
printf("break2 rc= %x \n", (int)rc);
break;
}
addr += len;
size -= len;
}
} else
addr += info.size;
// printf("addr = %lx \n", addr);
}
if (out_index != 0) {
s32 count = out_index;
// compress option
count = LZ_Compress(outbuffer + outbuffer_offset, outbuffer, out_index);
//
WRITE_CHECKED(ctx, count);
WRITE_BUFFER_CHECKED(ctx, outbuffer, count);
out_index = 0;
}
WRITE_CHECKED(ctx, 0);
return rc;
}

//0x16
static Result _search_local(Gecko::Context& ctx){
u64 m_start; u64 m_end; u64 m_value1; u64 m_value2; t_searchsize searchsize; t_searchtype searchtype;
READ_CHECKED(ctx, m_start);
READ_CHECKED(ctx, m_end);
READ_CHECKED(ctx, m_value1);
READ_CHECKED(ctx, m_value2);
READ_CHECKED(ctx, searchsize);
READ_CHECKED(ctx, searchtype);
return processlocal(ctx, m_start, m_end, m_value1, m_value2, searchsize, searchtype);
}

//0x17
static Result _fetch_result(Gecko::Context& ctx){
u32 id;
u64 addr;
u64 flags;
READ_CHECKED(ctx, id);
READ_CHECKED(ctx, addr);
READ_CHECKED(ctx, flags);
return ctx.dbg.setBreakpoint(id, flags, addr);
}

//0x18
static Result _detach_dmnt(Gecko::Context& ctx){
return dmntchtForceCloseCheatProcess();
}

//0x1A
static Result _attach_dmnt(Gecko::Context& ctx){
return dmntchtForceOpenCheatProcess();
}
//0x19
static Result _dump_ptr(Gecko::Context& ctx){
Result rc = getmeminfo(ctx);
Expand All @@ -540,9 +689,7 @@ static Result _dump_ptr(Gecko::Context& ctx){
if (R_SUCCEEDED(rc)) rc = process(ctx, m_heap_start, m_heap_end);
return rc;
}
static FILE* g_memdumpFile = NULL;
// static FILE* g_bookmarkFile = NULL;
#define HEADERSIZE 134

//0x1B
static Result _getbookmark(Gecko::Context& ctx){
// printf("_getbookmark\n");
Expand Down

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