This fixes starting the Windows 2000 POSIX subsystem in ReactOS.
- The CreateSession pointer was initialized against the SbApiMsg variable, but
it was the other SbApiMsg2 that was being initialized and sent through LPC.
- Do not overwrite the MuSessionId (Terminal Services session ID) variable with
the generated environment subsystem session ID from SmpAllocateSessionId().
- Actually initialize the SbApiMsg ApiNumber for the CreateSession LPC call.
(dll\win32\kernel32\client\proc.c:3690) Retrying with: POSIX /P C:\ReactOS\system32\posix\ls.exe /C ls
Breakpoint 1 hit
csrsrv!CsrSbApiRequestThread+0x64:
001b:1000ac34 837dfc00 cmp dword ptr [ebp-4],0
kd> ??ReceiveMsg
struct _SB_API_MSG
+0x000 h : _PORT_MESSAGE
+0x018 ConnectionInfo : _SB_CONNECTION_INFO
+0x018 ApiNumber : 0xcccccccc (No matching name)
+0x01c ReturnValue : 0n0
+0x020 u : <unnamed-tag>
kd> p
...
(base\system\smss\smsubsys.c:393) SMSS: SmpLoadSubSystem - NtRequestWaitReplyPort Failed with Status c0000002 for sessionid 2
...
<Retrying>
...
(base\system\smss\smsubsys.c:393) SMSS: SmpLoadSubSystem - NtRequestWaitReplyPort Failed with Status c0000002 for sessionid 3
All those bugs could have been avoided *IF*, rather than (badly) duplicating
its code, the existing SmpSbCreateSession() function had been used instead.
- "Not sure these field mean what I think they do -- but clear them" ... ◔_◔
Those fields are related to the debug client interface (DbgUi) and session
in case the subsystem being started is going to be debugged. These have
nothing to do with the MuSessionId. Clarify this in the SB_CREATE_SESSION_MSG
structure and in the SmpSbCreateSession() function.
- Not all the wcscpy() / swprintf() calls have been converted to their
string-safe equivalents. Instead I used the string-safe functions only
for places where strings of unknown length were copied into fixed-size
internal buffers. On the contrary, for known-fixed-length strings being
copied or numbers being converted to string representations in large
enough buffers, I kept the original function calls.
- Verify the registry data that has been returned by NtQueryValueKey():
* When expecting (not multi) strings, check whether the data type is
either REG_SZ or REG_EXPAND_SZ.
* When expecting DWORD values, check whether the data type is
REG_DWORD and whether the data length is (greater or) equal to
sizeof(ULONG).
