Kernel (NT I/O subsystem):
- kernel/nt/io.c + include/kernel/nt/io.h (new): DRIVER_OBJECTs with a
MajorFunction dispatch table, DEVICE_OBJECTs that can be stacked (attached),
and IRPs pushed down the stack via io_call_driver / completed with
io_complete_request. Ships three demo drivers: \Driver\Null (write sink,
EOF reads), \Driver\Zero (zero-filled reads), and \Driver\Monitor -- a filter
attached above \Device\Null that counts and forwards each IRP down the stack.
Wired into the [12/14] boot step.
- LazyBox `iodev` lists drivers/devices with the stack and IRP counters, then
runs a live demo: a WRITE IRP through the filtered Null stack and a READ from
the Zero device.
GUI:
- gui/gui_apps.c: "Registry Editor" -- navigate the NT \Registry hive tree,
click subkeys to descend and ".." to go up, with a values pane showing each
value's name/type/data. Registered in the app table (start menu).
Verified live in the GUI terminal (screenshotted): 3 drivers / 3 devices, the
NullMonitor->Null device stack, a 16-byte WRITE sunk through the filter
(status 0x0), and an 8-byte zeroed READ from \Device\Zero. Clean build on
x86_64/aarch64/armv8i; 0 panics / 0 OOM.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
Kernel (NT Configuration Manager):
- kernel/nt/reg.c + include/kernel/nt/reg.h (new): a hive/key/value registry
rooted at "\Registry", with typed values (REG_SZ/DWORD/QWORD/BINARY/MULTI_SZ,
type codes matching Win32). reg_create_key/reg_open_key walk backslash paths;
setters/getters, enumeration, and value->string rendering. reg_init() seeds
\Registry\Machine (Hardware, System\CurrentControlSet\Control, Software\SUB-OS)
and \Registry\User\.DEFAULT. Wired into the [12/14] boot step.
- LazyBox `reg query|add|set|stats` explores and edits the registry.
GUI:
- gui/gui_apps.c: "Object Browser" -- a WinObj-style live tree view of the NT
object namespace (\), flattening directories/events/semaphores/mutants with
indentation, per-type colouring, ref/handle counts, live object/handle stats,
and click-to-scroll. Registered in the app table (start menu).
Verified live in the GUI terminal (screenshotted): registry reports 13 keys /
11 values; `reg query \Registry\Machine\Software\SUB-OS` lists Version,
BuildArch (REG_SZ), GrowableHeap/ObjectManager (REG_DWORD) and InstallCookie
(REG_QWORD) with correct types. Clean build on x86_64/aarch64/armv8i; 0 panics.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
Take inspiration from the Windows NT Executive and add its most iconic
subsystem to SUB-OS: a typed, reference-counted object namespace.
- kernel/nt/ob.c + include/kernel/nt/ob.h (new):
* Object Manager (Ob): typed objects (Directory/Event/Semaphore/Mutant) in a
hierarchical named namespace rooted at "\", with NT-style deletion once
handle_count and ref_count both reach zero (unless permanent).
* Handle table (Io/Ob): NT-shaped non-zero 4-aligned HANDLEs into a 256-slot
system table; open/reference/close with proper refcount transfer.
* Dispatcher (Ke): set/reset/test events (auto- and manual-reset) and
release/wait semaphores, poll-style.
* Software IRQL: PASSIVE/APC/DISPATCH/HIGH with raise/lower semantics.
* NTSTATUS result codes and NT_SUCCESS().
* ob_init() seeds the standard namespace (\BaseNamedObjects, \Device,
\ObjectTypes, \KernelObjects) plus a boot event and an I/O semaphore.
- Wired ob_init() into the [12/14] boot step; added kernel/nt/ob.c to CORE_SRCS.
- LazyBox: `objdir [\path]` walks the object namespace tree (WinObj-style);
`ntobj` prints Ob statistics and runs a live dispatcher/handle/IRQL demo.
Verified live in the GUI terminal (screenshotted): 7 seeded objects
(5 directories, 1 event, 1 semaphore), auto-reset event signalling, handle
close reclaiming the object, and PASSIVE->DISPATCH->PASSIVE IRQL transitions.
Clean build on x86_64/aarch64/armv8i; 0 panics / 0 OOM.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Fh5z6V7nGPbHvqVG5p4CXX
