ec616cc151
Phase 34: Orbital Drop - Fix console echo and eliminate 'R' flood regression
...
- Fixed console echo by implementing wrapper_vfs_write to handle FD 1/2 in kernel.
- Initialized UART on RISC-V with FIFO drain to prevent stuck characters.
- Removed debug 'R' trace from libc.nim read(0) shim.
- Restored interactive CLI functionality.
2026-01-03 18:07:18 +01:00
7169dc05d4
Phase 27-29: Visual Cortex, Pledge, and The Hive
...
PHASE 27: THE GLYPH & THE GHOST (Visual Cortex Polish)
========================================================
- Replaced placeholder block font with full IBM VGA 8x16 bitmap (CP437)
- Implemented CRT scanline renderer for authentic terminal aesthetics
- Set Sovereign Blue background (0xFF401010) with Phosphor Amber text
- Added ANSI escape code stripper for clean graphical output
- Updated QEMU hints to include -device virtio-gpu-device
Files:
- core/rumpk/libs/membrane/term.nim: Scanline renderer + ANSI stripper
- core/rumpk/libs/membrane/term_font.nim: Full VGA bitmap data
- src/nexus/forge.nim: QEMU device flag
- docs/dev/PHASE_26_VISUAL_CORTEX.md: Architecture documentation
PHASE 28: THE PLEDGE (Computable Trust)
========================================
- Implemented OpenBSD-style capability system for least-privilege execution
- Added promises bitmask to FiberObject for per-fiber capability tracking
- Created SYS_PLEDGE syscall (one-way capability ratchet)
- Enforced capability checks on all file operations (RPATH/WPATH)
- Extended SysTable with fn_pledge (120→128 bytes)
Capabilities:
- PLEDGE_STDIO (0x0001): Console I/O
- PLEDGE_RPATH (0x0002): Read Filesystem
- PLEDGE_WPATH (0x0004): Write Filesystem
- PLEDGE_INET (0x0008): Network Access
- PLEDGE_EXEC (0x0010): Execute/Spawn
- PLEDGE_ALL (0xFFFF...): Root (default)
Files:
- core/rumpk/core/fiber.nim: Added promises field
- core/rumpk/core/ion.nim: Capability constants + SysTable extension
- core/rumpk/core/kernel.nim: k_pledge + enforcement checks
- core/rumpk/libs/membrane/ion_client.nim: Userland ABI sync
- core/rumpk/libs/membrane/libc.nim: pledge() wrapper
- docs/dev/PHASE_28_THE_PLEDGE.md: Security model documentation
PHASE 29: THE HIVE (Userland Concurrency)
==========================================
- Implemented dynamic fiber spawning for isolated worker execution
- Created worker pool (8 concurrent fibers, 8KB stacks each)
- Added SYS_SPAWN (0x500) and SYS_JOIN (0x501) syscalls
- Generic worker trampoline for automatic cleanup on exit
- Workers inherit parent memory but have independent pledge contexts
Worker Model:
- spawn(entry, arg): Create isolated worker fiber
- join(fid): Wait for worker completion
- Workers start with PLEDGE_ALL, can voluntarily restrict
- Violations terminate worker, not parent shell
Files:
- core/rumpk/core/fiber.nim: user_entry/user_arg fields
- core/rumpk/core/kernel.nim: Worker pool + spawn/join implementation
- core/rumpk/libs/membrane/libc.nim: spawn()/join() wrappers
- docs/dev/PHASE_29_THE_HIVE.md: Concurrency architecture
STRATEGIC IMPACT
================
The Nexus now has a complete Zero-Trust security model:
1. Visual identity (CRT aesthetics)
2. Capability-based security (pledge)
3. Isolated concurrent execution (spawn/join)
This enables hosting untrusted code without kernel compromise,
forming the foundation of the Cryptobox architecture (STC-2).
Example usage:
proc worker(arg: uint64) {.cdecl.} =
discard pledge(PLEDGE_INET | PLEDGE_STDIO)
http_get("https://example.com ")
let fid = spawn(worker, 0)
discard join(fid)
# Shell retains full capabilities
Build: Validated on RISC-V (rumpk-riscv64.elf)
Status: Production-ready
2026-01-02 14:12:00 +01:00
e8fb428861
feat(rumpk): Phase 8 - The Summoning (ELF Loader) - 95% Complete
...
## Major Features
### 1. Dynamic ELF64 Binary Loading
- Implemented ELF parser with full header validation (core/loader/elf.nim)
- Created kexec() loader supporting PT_LOAD segment mapping
- Added BSS initialization and data copying from VFS
- Assembly trampoline (rumpk_enter_userland) for userland entry
### 2. Syscall Infrastructure
- Added CMD_SYS_EXEC (0x400) for consciousness swapping
- Integrated exec command in NipBox shell
- Implemented syscall routing through command ring
- Added provenance tracking via SipHash
### 3. Test Binary & Build System
- Created hello.c test program for alien binary execution
- Automated compilation and initrd inclusion in build.sh
- Added libnexus.h header for standalone C programs
### 4. VFS Integration
- Implemented TarFS file cursor system for sequential reads
- Fixed infinite loop bug in cat command
- Added debug logging for VFS mount process
## Technical Improvements
### Memory Management
- Fixed input ring null pointer dereference
- Implemented CMD_ION_FREE syscall for packet reclamation
- Resolved memory leak in input/output pipeline
- Added FileHandle with persistent offset tracking
### ABI Stability
- Split kprint into 1-arg (Nim) and kwrite (C ABI)
- Fixed cstring conversion warnings across codebase
- Corrected RISC-V assembly (csrw sie, zero)
### Documentation
- Comprehensive Phase 8 documentation (docs/PHASE-8-ELF-LOADER.md)
- Detailed implementation notes and debugging status
## Current Status
✅ ELF parser, loader, and syscall infrastructure complete
✅ Test binary compiles and embeds in VFS
✅ Shell integration functional
🔧 Debugging command ring communication (syscall not reaching kernel)
## Files Changed
Core:
- core/loader.nim, core/loader/elf.nim (NEW)
- core/kernel.nim, core/ion.nim (syscall handling)
- core/fs/tar.nim (file cursor system)
- hal/arch/riscv64/switch.S (userland trampoline)
Userland:
- npl/nipbox/nipbox.nim (exec command)
- libs/membrane/libc_shim.zig (syscall implementation)
- libs/membrane/ion.zig (command ring API)
Build & Test:
- build.sh (hello.c compilation)
- rootfs/src/hello.c, rootfs/src/libnexus.h (NEW)
- apps/subject_entry.S (NEW)
## Next Steps
1. Debug SysTable and command ring communication
2. Verify ION fiber polling of chan_cmd
3. Test full ELF loading and execution flow
4. Add memory protection (future phase)
Co-authored-by: Voxis Forge <ai@voxisforge.dev>
2025-12-31 20:18:49 +01:00
c279744dc6
feat(rumpk): Sovereign Core enhancements - NexShell IPC hardening & NipBox utility expansion
...
- Improved NexShell signal integrity by consolidating ION packet transmission.
- Added 'ls' and enhanced 'matrix' control to NipBox (Sovereign Coreutils).
- Added emergency matrix override to NexShell kernel mode.
- Fixed 'command not found' errors caused by IPC fragmentation.
2025-12-31 20:18:49 +01:00
b3d9c2a49d
feat(rumpk): Phase 2 Complete - The Entropy Purge & Sovereign Alignment
...
- Rumpk Core: Complete exorcism of LwIP/NET ghosts. Transitioned to ION nomenclature.
- ABI Sync: Synchronized Zig HAL and Nim Logic Ring Buffer layouts (u32 head/tail/mask).
- Invariant Shield: Hardened HAL pipes with handle-based validation and power-of-2 sync.
- Immune System: Verified Blink Recovery (Self-Healing) with updated ION Control Plane.
- NexShell: Major refactor of Command Plane for Sovereign Ring access.
- Architecture: Updated SPEC files and Doctrines (Silence, Hexagonal Sovereignty).
- Purge: Removed legacy rumk and nip artifacts for a clean substrate.
- Web: Updated landing page vision to match Rumpk v1.1 milestones.
2025-12-31 20:18:48 +01:00
Markus Maiwald