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ceeaeefa710c28d29e03e71f9d6071e1ba2eff2a
mxaccess/analysis/ghidra/exports/LmxProxy.dll.buffered-decompile.md
T
Joseph Doherty fe2a6db786
rust / build / test / clippy / fmt (push) Has been cancelled
Details
Initial project state: .NET reference, design, Rust port (M0+M1), evidence 
Layout:
- src/                    .NET 10 x64 reference: MxNativeCodec, MxNativeClient,
                          MxAsbClient, probes, tests, harnesses. Executable spec.
- design/                 Architectural plan for the Rust port (M0–M6), error
                          model, protocol invariants, risks (R1–R16), adversarial
                          review log (review.md).
- rust/                   Rust workspace. M0 skeleton + M1 codec parity.
                          mxaccess-codec: 215 unit tests + 2 cross-implementation
                          parity tests (byte-identical against .NET reference).
                          Other crates are M0 stubs awaiting M2+.
- captures/               Frida + netsh + pcap evidence per CLAUDE.md
                          ("captures are evidence, not throwaway logs").
- analysis/               Decompiled C# (frida/proxy/decompiled-*),
                          Ghidra exports for native DLLs (`exports/` only —
                          working state at `projects/` and AVEVA's input
                          binaries at `input/` are gitignored).
- docs/                   Reverse-engineering reference docs.
- tools/                  Setup-LiveProbeEnv.ps1 (Infisical credential fetcher),
                          Compute-Crc.ps1 (.NET parity helper).
- .github/workflows/      Rust CI: fmt + build + test + clippy on Windows.
- LICENSE                 MIT (Joseph Doherty, 2026).

Verified:
- cargo test --workspace → 217 passed (215 unit + 2 .NET parity), 0 failed
- cargo clippy --workspace -- -D warnings → clean
- cargo fmt --all -- --check → clean
- cargo publish --dry-run -p mxaccess-codec → packages cleanly

Excluded from history (see .gitignore):
- **/bin, **/obj, **/target — build artifacts
- analysis/ghidra/projects/ — Ghidra working state (regenerable)
- analysis/ghidra/input/ — AVEVA proprietary DLLs (vendor IP)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 06:21:00 -04:00

367 lines
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# LmxProxy.dll selected decompile
## FUN_1001121d at 1001121d
Signature: `int __stdcall FUN_1001121d(int * param_1, int param_2, BSTR param_3, undefined4 param_4, int * param_5)`
```c
/* WARNING: Function: __EH_prolog3 replaced with injection: EH_prolog3 */
/* WARNING: Function: __EH_epilog3 replaced with injection: EH_epilog3 */
int FUN_1001121d(int *param_1,int param_2,BSTR param_3,undefined4 param_4,int *param_5)
{
int *this;
int *piVar1;
char cVar2;
basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> bVar3;
undefined1 uVar4;
undefined *puVar5;
int iVar6;
int *piVar7;
basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *pbVar8;
int *piVar9;
rsize_t rVar10;
int iVar11;
uint uVar12;
BSTR pOVar13;
undefined4 uVar14;
wchar_t *pwVar15;
_func_basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>_ptr_basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>_ptr
*p_Var16;
piVar7 = param_1;
this = param_1 + -2;
cVar2 = FUN_1000d2d6((int)this);
piVar1 = param_5;
if (cVar2 == '\0') {
uVar14 = 0;
uVar12 = 1;
puVar5 = FUN_10003248();
iVar6 = FUN_10003897(puVar5,uVar12);
puVar5 = FUN_10003248();
uVar12 = FUN_1000305b(puVar5,iVar6,uVar14);
if ((char)uVar12 != '\0') {
pwVar15 =
L"Failed to retrieve information from the MXAccess_Runtime license. Either MXAccess_Runtime license is not available or expired."
;
piVar7 = (int *)FUN_10003248();
FUN_100030ef(piVar7,pwVar15);
}
bVar3 = FUN_10003f01(*(basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> **)
(DAT_100294e0 + 0xc));
if (bVar3 != (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>)0x0) {
pwVar15 = L" No Valid License found - returning E_ACCESSDENIED HRESULT";
p_Var16 = endl_exref;
uVar4 = FUN_1000d2d6((int)this);
pbVar8 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf(*(int **)(DAT_100294e0 + 0xc),
L"CLMXProxyServer::AddBufferedItem - Valid License: ");
pbVar8 = std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<
(pbVar8,(bool)uVar4);
pbVar8 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf((int *)pbVar8,pwVar15);
std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<(pbVar8,p_Var16);
}
iVar6 = -0x7ff8fffb;
}
else if (param_3 == (BSTR)0x0) {
bVar3 = FUN_10003f01(*(basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> **)
(DAT_100294e0 + 0xc));
if (bVar3 != (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>)0x0) {
pwVar15 = L" Item name NULL - returning E_INVALIDARG HRESULT";
iVar6 = param_2;
p_Var16 = endl_exref;
pbVar8 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf(*(int **)(DAT_100294e0 + 0xc),
L"CLMXProxyServer::AddBufferedItem - Server Handle: ");
pbVar8 = std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<
(pbVar8,iVar6);
pbVar8 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf((int *)pbVar8,pwVar15);
std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<(pbVar8,p_Var16);
}
iVar6 = -0x7ff8ffa9;
}
else {
bVar3 = FUN_10003f01(*(basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> **)
(DAT_100294e0 + 0xc));
if (piVar1 == (int *)0x0) {
if (bVar3 != (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>)0x0) {
pwVar15 = L" Item handle is NULL - returning E_POINTER HRESULT";
iVar6 = param_2;
p_Var16 = endl_exref;
pbVar8 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf(*(int **)(DAT_100294e0 + 0xc),
L"CLMXProxyServer::AddBufferedItem - Server Handle: ");
pbVar8 = std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<
(pbVar8,iVar6);
pbVar8 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf((int *)pbVar8,pwVar15);
std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<(pbVar8,p_Var16);
}
iVar6 = -0x7fffbffd;
}
else {
if (bVar3 != (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>)0x0) {
pwVar15 = L" Item name: ";
iVar6 = param_2;
pOVar13 = param_3;
p_Var16 = endl_exref;
pbVar8 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf(*(int **)(DAT_100294e0 + 0xc),
L"CLMXProxyServer::AddBufferedItem - Server Handle: ");
pbVar8 = std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<
(pbVar8,iVar6);
piVar9 = (int *)FUN_10002dbf((int *)pbVar8,pwVar15);
pbVar8 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf(piVar9,pOVar13);
std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<(pbVar8,p_Var16);
}
param_3 = SysAllocString(param_3);
if (param_3 == (BSTR)0x0) {
FUN_10005da7(0x8007000e,(OLECHAR *)0x0,
"D:\\BldSrc\\6\\s\\SharedComponents\\Internal\\MagellanPublic\\Includes\\ClassUtilities\\AAComBSTR.h"
,0xc5);
}
rVar10 = lstrlenW(L".property(buffer)");
FUN_10010a84(&param_3,L".property(buffer)",rVar10);
iVar6 = (**(code **)(*piVar7 + 0x44))(piVar7,param_2,param_3,param_4,piVar1);
if (-1 < iVar6) {
param_1 = (int *)0x0;
bVar3 = FUN_10003f01(*(basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> **)
(DAT_100294e0 + 0xc));
if (bVar3 != (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>)0x0) {
iVar6 = *piVar1;
pwVar15 = L" Item Handle ";
iVar11 = param_2;
p_Var16 = endl_exref;
pbVar8 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf(*(int **)(DAT_100294e0 + 0xc),
L"CLMXProxyServer::AddBufferedItem - Server Handle ");
pbVar8 = std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<
(pbVar8,iVar11);
pbVar8 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf((int *)pbVar8,pwVar15);
pbVar8 = std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<
(pbVar8,iVar6);
std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<(pbVar8,p_Var16);
}
iVar6 = FUN_1000fa3b(this,param_2,*piVar1,&param_2,(int *)&param_1);
if (-1 < iVar6) {
*(undefined1 *)(param_1 + 10) = 1;
}
}
SysFreeString(param_3);
}
}
return iVar6;
}
```
## FUN_100163c0 at 100163c0
Signature: `undefined __thiscall FUN_100163c0(void * this, long param_1, long param_2, undefined4 param_3)`
```c
/* WARNING: Function: __EH_prolog3 replaced with injection: EH_prolog3 */
/* WARNING: Function: __EH_epilog3 replaced with injection: EH_epilog3 */
void __thiscall FUN_100163c0(void *this,long param_1,long param_2,undefined4 param_3)
{
basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> bVar1;
undefined4 *puVar2;
int *piVar3;
basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *pbVar4;
undefined4 *this_00;
undefined4 in_stack_00000040;
long lVar5;
wchar_t *pwVar6;
long lVar7;
_func_basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>_ptr_basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>_ptr
*p_Var8;
undefined4 *local_30;
undefined4 local_2c;
undefined4 local_28;
undefined4 local_24;
int *local_20;
int local_1c;
void *local_18;
int local_14;
undefined4 local_8;
undefined4 uStack_4;
uStack_4 = 0x20;
local_8 = 0x100163cc;
puVar2 = (undefined4 *)FUN_100170a4(0x74);
if (puVar2 == (undefined4 *)0x0) {
this_00 = (undefined4 *)0x0;
}
else {
this_00 = puVar2 + 1;
*puVar2 = 7;
_eh_vector_constructor_iterator_(this_00,0x10,7,FUN_10001517,FUN_10001f45);
}
local_1c = *(int *)((int)this + 8);
local_14 = 0;
if (0 < local_1c) {
local_18 = (void *)((int)this + 4);
do {
piVar3 = (int *)FUN_10007d02(local_18,local_14);
local_20 = piVar3;
if (piVar3 != (int *)0x0) {
(**(code **)(*piVar3 + 4))(piVar3);
}
local_8 = 1;
if (piVar3 != (int *)0x0) {
FUN_10015d08(this_00 + 0x18,param_1);
FUN_10015d08(this_00 + 0x14,param_2);
FUN_10015d08(this_00 + 0x10,param_3);
if ((CComVariant *)(this_00 + 0xc) != (CComVariant *)&stack0x00000010) {
ATL::CComVariant::InternalCopy
((CComVariant *)(this_00 + 0xc),(tagVARIANT *)&stack0x00000010);
}
if ((CComVariant *)(this_00 + 8) != (CComVariant *)&stack0x00000020) {
ATL::CComVariant::InternalCopy
((CComVariant *)(this_00 + 8),(tagVARIANT *)&stack0x00000020);
}
if ((CComVariant *)(this_00 + 4) != (CComVariant *)&stack0x00000030) {
ATL::CComVariant::InternalCopy
((CComVariant *)(this_00 + 4),(tagVARIANT *)&stack0x00000030);
}
*(undefined2 *)this_00 = 0x6024;
this_00[2] = in_stack_00000040;
local_2c = 0;
local_28 = 7;
local_24 = 0;
local_30 = this_00;
bVar1 = FUN_10003f01(*(basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> **)
(DAT_100294e0 + 0x10));
if (bVar1 != (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>)0x0) {
pwVar6 = L" Item Handle ";
lVar5 = param_1;
lVar7 = param_2;
p_Var8 = endl_exref;
pbVar4 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf(*(int **)(DAT_100294e0 + 0x10),
L"CProxy_ILMXProxyServerEvents2::Fire_OnBufferedDataChange firing event - Server Handle "
);
pbVar4 = std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<
(pbVar4,lVar5);
pbVar4 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf((int *)pbVar4,pwVar6);
pbVar4 = std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<
(pbVar4,lVar7);
std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<(pbVar4,p_Var8);
}
(**(code **)(*piVar3 + 0x18))(piVar3,1,&DAT_100201f8,0x400,1,&local_30,0,0,0);
}
local_8 = 0xffffffff;
if (piVar3 != (int *)0x0) {
(**(code **)(*piVar3 + 8))(piVar3);
}
local_14 = local_14 + 1;
} while (local_14 < local_1c);
}
if (this_00 != (undefined4 *)0x0) {
FUN_10015d66(this_00,3);
}
return;
}
```
## FUN_1000fc80 at 1000fc80
Signature: `undefined4 __stdcall FUN_1000fc80(int param_1, long param_2, int param_3)`
```c
undefined4 FUN_1000fc80(int param_1,long param_2,int param_3)
{
int iVar1;
basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> bVar2;
basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *pbVar3;
undefined4 uVar4;
int *piVar5;
int iVar6;
long lVar7;
wchar_t *pwVar8;
wchar_t *pwVar9;
_func_basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>_ptr_basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>_ptr
*p_Var10;
iVar6 = param_3;
if (param_3 < 1) {
bVar2 = FUN_10003f01(*(basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> **)
(DAT_100294e0 + 0xc));
if (bVar2 != (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>)0x0) {
p_Var10 = endl_exref;
pbVar3 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf(*(int **)(DAT_100294e0 + 0xc),
L"CLMXProxyServer::SetBufferedUpdateInterval - returning E_INVALIDARG");
std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<(pbVar3,p_Var10);
}
uVar4 = 0x80070057;
}
else {
piVar5 = (int *)FUN_1000f663((void *)(param_1 + 0x24),&param_3,&param_2);
iVar1 = *piVar5;
if (iVar1 == *(int *)(param_1 + 0x28)) {
bVar2 = FUN_10003f01(*(basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> **)
(DAT_100294e0 + 0xc));
if (bVar2 != (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>)0x0) {
pwVar8 = L" not found.";
lVar7 = param_2;
p_Var10 = endl_exref;
pbVar3 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf(*(int **)(DAT_100294e0 + 0xc),
L"CLMXProxyServer::SetBufferedUpdateInterval - hLMXServer ");
pbVar3 = std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<
(pbVar3,lVar7);
pbVar3 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf((int *)pbVar3,pwVar8);
std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<(pbVar3,p_Var10);
}
uVar4 = 0x80070057;
}
else {
*(int *)(iVar1 + 0x5c) = (iVar6 + 99) / 100;
bVar2 = FUN_10003f01(*(basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> **)
(DAT_100294e0 + 0xc));
if (bVar2 != (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>)0x0) {
iVar6 = *(int *)(iVar1 + 0x5c) * 100;
pwVar9 = L" msec.";
pwVar8 = L" setting buffered update interval to ";
lVar7 = param_2;
p_Var10 = endl_exref;
pbVar3 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf(*(int **)(DAT_100294e0 + 0xc),
L"CLMXProxyServer::SetBufferedUpdateInterval - hLMXServer ");
pbVar3 = std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<
(pbVar3,lVar7);
pbVar3 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf((int *)pbVar3,pwVar8);
pbVar3 = std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<
(pbVar3,iVar6);
pbVar3 = (basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_> *)
FUN_10002dbf((int *)pbVar3,pwVar9);
std::basic_ostream<wchar_t,struct_std::char_traits<wchar_t>_>::operator<<(pbVar3,p_Var10);
}
uVar4 = 0;
}
}
return uVar4;
}
```
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