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Author	SHA1	Message	Date
Aaron	0cd32a0f64	Fixed file header	2026-03-08 14:04:48 +00:00
Aaron	f2e5f3535a	perf(ds): replace MD5 key hash in hashmap with FNV-1a32 ... Removes per-lookup heap allocation (MD5Buffer/kfree) in favour of a single zero-allocation FNV-1a32 pass. Drops core.enc.md5 dependency from core.ds.hashmap.	2026-03-08 13:59:56 +00:00
Aaron	2159578bdf	feat(ds/enc): add bloom filter, FNV-1a and DJB2 hash units ... - core.enc.fnv1a: FNV-1a 32/64-bit non-cryptographic hash with UnitTest - core.enc.djb2: DJB2 XOR/Add 32/64-bit hash variants with UnitTest - core.ds.bloom: probabilistic bloom filter (Bloom_New/Add/Test/Clear/Free) using double hashing (FNV-1a32 + DJB2_32) with UnitTest - core.ds.types: add TBloomFilter / PBloomFilter record - asuro.pas: wire all three UnitTests into boot test suite	2026-03-08 13:58:33 +00:00
admin	7abb38ccbe	Merge pull request 'Namespace Restructure' (#54) from feature/refactor into develop ... Reviewed-on: #54 Reviewed-by: Aaron Hance <[email protected]>	2026-03-08 12:47:41 +00:00
t3hn3rd	c2aaf1a5c9	fix: minor cleanup after namespace refactor ... - Shorten 'driver.video.windows: ' label to 'Windows: ' in uidebug - Shorten e1000 terminal command name from 'driver.net.dev.e1000' to 'E1000' - Auto-generated version bump (build artifact) 3 files changed, 7 insertions(+), 7 deletions(-)	2026-03-08 12:07:35 +00:00
t3hn3rd	021aa0d82e	refactor: namespace cleanup pass 2 ... - Rename driver.intf.serial -> driver.io.serial (intf/ -> io/) - Move net protocols to driver.net.proto.* (net/ -> net/proto/) - arp, dhcp, eth2, icmp, ipv4, tcp, udp - Move netdev to driver.net.dev.* (netdev/ -> net/dev/) - e1000 - Move driver.net.pas into driver/net/ - Move driver.video.pas into driver/video/ - Rename arch.x86.faults -> arch.x86.fault, move to fault/ dir - Move driver.storage.ctl.ahci.pas into ctl/ahci/ - Move driver.storage.ctl.ide.pas into ctl/ide/ - Move linker.script and version to toolchain/ - Update all unit references and namespace doc 35 files changed, 237 insertions(+), 234 deletions(-)	2026-03-08 10:00:41 +00:00
t3hn3rd	6fa008ed79	refactor: namespace restructure of entire codebase ... Reorganize all source files into a hierarchical namespace structure with dot-separated unit names matching directory paths. Major changes: - src/prog/ -> src/app/ (app.*.pas) - src/fault/ -> src/arch/x86/fault/ (arch.x86.fault.*.pas) - src/isr/ -> src/arch/x86/isr/ (arch.x86.isr.*.pas) - src/include/ -> src/core/ (core.*.pas) + src/arch/x86/ - src/driver/ subtree reorganized with driver.* namespace prefixes - src/driver/storage/con/ -> src/driver/storage/ctl/ (Windows reserved name fix) - src/driver/storage/ split into con(ctl)/fs/vol/ subdirectories - src/driver/net/ flattened from l1-l5 layers to driver.net.*.pas - kernel.pas -> asuro.pas, faults.pas -> arch.x86.faults.pas - stdio.pas/syslog.pas -> io/io.stdio.pas, io/io.syslog.pas - processmanager.pas -> proc/proc.mgr.pas - lmemorymanager.pas -> memory/memory.heap.pas - Build scripts moved to toolchain/ - Added compat/ shims for lmemorymanager and types - Added doc/namespace.md tracking the refactor 197 files changed, 6292 insertions(+), 5526 deletions(-)	2026-03-08 01:28:31 +00:00
admin	e922f086c2	Merge pull request 'WASM Execution Pipeline, File Dispatch & Supporting Infrastructure' (#52) from feature/wasm into develop ... Reviewed-on: #52 Reviewed-by: Aaron Hance <[email protected]>	2026-03-07 22:29:29 +00:00
admin	605ec9d817	Merge pull request 'Standalone SHA-1 hashing implementation' (#51) from feature/sha1 into develop ... Reviewed-on: #51 Reviewed-by: Aaron Hance <[email protected]>	2026-03-07 22:12:38 +00:00
t3hn3rd	1ae867d929	fix: adapt subsystems to new VFS volume API and fix desktop program registry ... - ramdrive: rewrite from registerDrive callbacks to TFilesystem/TStorage_Volume hooks (rd_Read, rd_ReadDir, rd_ReadOffset, rd_Identify) and mount via vfs.mountVolume('/disk/ram', ...). Remove open-slot tracking; VFS now manages file handles through the FD table. - vfs: fix PathValid for otDRIVE nodes — split relative path into parent directory + leaf name, list the parent via readDirCallback, and check each entry's type so individual files are correctly identified as pvFile instead of always returning pvDirectory or pvInvalid. - desktop: replace static array[0..MAX_PROGRAMS-1] program registry with a dynamic PLinkedListBase. Lazy-init on first registerProgram call. Remove prog_count := 0 from init so programs registered before desktop.init (e.g. notepad, diskutil) are no longer wiped. - filedispatch, wasmrunner: add storagetypes to uses, remove stale Lock parameter from vfs.OpenFile calls. - progmanager: clean up duplicate uses clauses and remove invalid kernel.bsod registration.	2026-03-07 22:12:18 +00:00
t3hn3rd	40a1c05728	Fix: missing imports in wasmio.pas	2026-03-07 21:26:26 +00:00
t3hn3rd	2bfbb44cfb	feature: WASM execution pipeline, file dispatch, RAM drive, and VFS handle table ... - Add file-type dispatch registry (filedispatch.pas) matching files by magic header bytes and routing to registered handlers - Add WASM integration layer: wasmshim, wasmio, wasmrunner, wasmcleanup providing full WASI Preview1 bridging (fd_write/read, proc_exit, clock, random, args passthrough, environ stubs) - Add RAM drive (ramdrive.pas) providing in-memory VFS at /disk/ram with a built-in hello world WASM binary - (Placeholder) Implement VFS handle table for proper open/read/write/close/filesize routing through registered drives and devices - Integrate file dispatch into vterminal for unknown commands, supporting both foreground and background execution of dispatched files - Expand progmanager init with PS, KILL, TERMINATE, DEV, DISK, MEMRAW, BSOD, IFCONFIG, ARP, and TCP commands; wire up ramdrive, filedispatch, and wasmrunner initialization - Replace serial.sendString with syslog.logln in desktop launcher	2026-03-07 21:26:25 +00:00
t3hn3rd	8ab2d0d04f	fix: drone pipeline not working ... - compile_wasuro.sh was copying files to the /code directory which is not where drone builds from, fixed to use $(pwd) and relative directories based on the root.	2026-03-07 21:24:13 +00:00
t3hn3rd	b51881ced7	feat: integrate Wasuro WASM runtime into Asuro build chain ... - Add compile_wasuro.sh to sparse-clone Wasuro src/wasm from gitea (develop branch) with caching to skip redundant pulls - Update compile.sh to include wasuro build step in pipeline - Update compile_sources.sh to dynamically discover -Fu paths via find across src/ and wasuro/ directories - Extend system.pas with FPC 3.2.2 compilerprocs required by Wasuro: - 64-bit signed/unsigned div and mod (fpc_div_int64, fpc_mod_int64, fpc_div_qword, fpc_mod_qword) with correct i386 parameter mapping - 64-bit multiply (fpc_mul_int64) via three 32-bit MUL instructions - Float-to-integer intrinsics (Trunc, Round) using x87 FPU - Memory allocation compilerprocs (fpc_getmem, fpc_freemem) delegating to kernel kalloc/kfree - Exception handling stubs (reraise, raiseexception, catches, doneexception) - setjmp/longjmp for exception address stack - Fix sInt64 type alias (was longint/32-bit, now int64/64-bit) - Add serial debug helpers (COM1 $3F8) for bare-metal tracing - Wire up Wasuro in kernel.pas: init WASM VM, set I/O callback to syslog, and run all 1103 Wasuro tests (0 failures) - Update .gitignore to exclude wasuro/ cache directory	2026-03-07 21:24:12 +00:00
t3hn3rd	0d6f1e006c	feature: preemptive process management - implementation progress ... Implement a preemptive multitasking system for the Asuro kernel. Context Switching & Scheduling: - Custom IRQ0 ISR (contextswitcher.pas) with PUSHAD/POPAD ESP-swap - Round-robin scheduler with priority-based quantum - Process table using DList of PProcessContext pointers - Idle process (PID 0) replaces kernel HLT loop Process Lifecycle: - create/kill/terminate/sendMessage API (processmanager.pas) - Process states: Created, Running, Ready, Suspended, Awaiting, Finished, Error - Parent-child tracking (ParentID, smChildExited notification on reap) - proc_yield, proc_sleep_ms, proc_await, proc_suspend, proc_exit Resource Binding & Cleanup: - Per-process resource list (bindResource/unbindResource/unbindAllResources) - TCP sockets auto-bound to owning process (OwnerPID on TTCPSocket) - socket_cleanup + auto-unbind in DestroySocket VTerminal Refactor: - Multi-instance design (heap-allocated TVTermState per terminal) - Foreground process with incremental stdout/stderr drain via LVGL timer - Ctrl+C kills foreground process (killForeground) - Per-terminal CWD, dir stack, FS builtins (CD/LS/PUSHD/POPD) - Background job support (& suffix, JOBS/FG commands) - Command history (Up/Down arrow) Command Consolidation: - 14 commands extracted from 9 units into centralized progmanager.pas - Command procedures exported in host unit interfaces - E1000/TRACER/stdio builtins kept in-place (conditional/circular) New Units: - src/include/proctypes.pas — process type definitions - src/processmanager.pas — core process manager - src/prog/ping.pas — standalone ICMP ping process - src/prog/testcmd.pas — test command (proc_sleep_ms demo) - src/testprocs.pas — process subsystem smoke tests Misc: - ICMP callbacks gain userData parameter for concurrency-safe ping - CLI/STI guards on kalloc/kfree (lmemorymanager.pas) - LV_KEY_CTRLC constant + Ctrl+C interception in LVGL keyboard hook - Window owner PID tracking (windows.pas) - ISR_32 gate override support (isrmanager.pas)	2026-03-07 21:21:45 +00:00
t3hn3rd	c70c0b52c3	Rebase: Fixed accidentally removed unit tests.	2026-03-07 21:05:12 +00:00
t3hn3rd	452cc0c8c8	Rebased on develop & remove test code from Kernel main.	2026-03-07 20:59:42 +00:00
t3hn3rd	3d334b8e8b	feature: SHA-1 Hashing ... - Add SHA-1 hashing implementation with Init/Update/Final API and inline test in kernel, following the same interface as MD5 & the fpc rtl.	2026-03-07 20:58:51 +00:00
t3hn3rd	b9643a7b56	feature: SHA-1 Hashing ... - Add SHA-1 hashing implementation with Init/Update/Final API and inline test in kernel, following the same interface as MD5 & the fpc rtl.	2026-03-07 20:58:22 +00:00
Aaron	6902a406b0	Merge pull request 'GPU Stack, V8086 Monitor & BGA Driver' (#50) from feature/gpu-stack-v8086-bga into develop ... Reviewed-on: #50 Reviewed-by: Aaron Hance <[email protected]>	2026-03-07 20:56:19 +00:00
t3hn3rd	36ec7bfdb6	refactor: move program registration from kernel to progmanager ... - Remove diskcmd, diskutil, notepad, partcmd, volcmd init calls and uses from kernel.pas — these are programs, not kernel subsystems. - Move their initialization into progmanager.init() alongside the other baked-in programs (md5sum, base64_prog, dhclient, etc.). - Remove diskcmd, diskutil, notepad from kernel's uses clause. - Add a splash.update() call for the auto-mount volumes step. - Suppress FPC warnings in compile_sources.sh (-v0e instead of -v0ew).	2026-03-07 20:39:43 +00:00
t3hn3rd	6c3c0e63d5	fix: Rebase borked kernel.pas - added missing deps	2026-03-07 20:31:38 +00:00
t3hn3rd	df71c59aea	feature: add boot splash screen with embedded TGA logo ... - New splash unit (src/prog/splash.pas) displays a centered logo, progress bar and status label during kernel boot. Manually drives LVGL rendering + video.Flush since gfxd isn't running yet. - Embed img/asuro.tga into the kernel via NASM incbin stub (src/stub/splash_tga.asm), assembled in compile_stub.sh. - Build an lv_image_dsc_t at runtime from the decoded TGA pixel data and display it at 50% scale using lv_image_set_scale(128). - Move LVGL init earlier in kernel.pas (right after video enable) so the splash screen is available before VFS/drivers/network init. - Sprinkle splash.update() calls throughout kmain to show boot progress (VFS → drivers → buses → network → tests → desktop). - Fix targa.pas parser: rename Magic→IDLength, remove erroneous Data pointer field, compute pixel offset correctly (buffer+18+IDLength), advance source pointer per pixel, handle bottom-to-top origin flip. - Unit tests moved before desktop.init; splash.teardown called at 100% just before handing off to the desktop environment.	2026-03-07 20:20:00 +00:00
t3hn3rd	97244a2b95	Rebase: Changes made to conform with rebase on develop	2026-03-07 20:17:24 +00:00
t3hn3rd	ecca496978	fix: show live GPU/resolution info in System Information ... - desktop: Resolution/Graphics fields now read from video frontbuffer and gpu.activeDriverName instead of static multiboot/hardcoded values - gpu: markAvailable sets ActiveName when no driver is active yet, so the initial VBE boot driver is reported before any setMode call - kernel: whitespace cleanup	2026-03-07 20:16:26 +00:00
t3hn3rd	e52b4a9763	feature: GPU driver framework with BGA, V86 monitor, and runtime resolution switching ... - GPU Framework (gpu.pas): Priority-ordered GPU driver registry with mode-change callback system. Drivers register with a priority (lower = tried first). After successful setMode, fires registered callbacks in order (video → LVGL → desktop) for fully decoupled resolution updates. - BGA Driver (bga.pas): Bochs Graphics Adapter via drivermanagement PCI auto-detection (class=$03 subclass=$00 wildcard). Programs display via I/O ports $01CE/$01CF, reads framebuffer from PCI BARs with VMware SVGA fallback. Supports arbitrary resolutions (1920x1080, 2560x1440, etc). - SETRES Command (setres.pas): Runtime resolution switching — just calls gpu.setMode; video reinit, LVGL buffer realloc, and desktop relayout all fire automatically via GPU mode-change callbacks. - VESA/VBE: Registered as GPU fallback driver (priority 50), uses V86 INT 10h for VBE mode switching. - TSS: Fix SS0 from $08 (code segment) to $10 (data segment); add set_esp0/get_esp0 helpers for V86 ring-0 stack management. - VMM: Add map_page_user() for identity-mapping first 4MB with User bit (required for V86 IVT/BDA/video ROM access). - Desktop: relayout procedure + GPU callback registration for automatic dock/watermark repositioning on resolution change. - V86 Monitor (v86.pas): Full Virtual 8086 mode monitor for executing real-mode BIOS interrupts from protected mode. Naked GPF handler with instruction emulation (INT, IRET, CLI, STI, PUSHF/POPF, IN/OUT, HLT, 0x66 prefix for 32-bit variants). Thunk-based entry via IRET into VM86. - Kernel init order: gpu.init → video.init → vesa.init → bga.init; drivermanagement.init moved earlier (before video) so PCI scan detects BGA before first use.	2026-03-07 20:16:25 +00:00
admin	f78eaa3811	Merge pull request 'Storage system overhaul: VFS, FAT32, ISO9660, AHCI/IDE refactor, GUI apps & boot drive mounting' (#49) from feature/storage-system into develop ... Reviewed-on: #49 Reviewed-by: admin <[email protected]>	2026-03-07 19:53:14 +00:00
Aaron	acb4a15e41	Fix file headers	2026-03-07 19:40:18 +00:00
Aaron	d3581eea2e	update header	2026-03-07 19:37:26 +00:00
Aaron	1fc00e3e7c	chore: ignore lessons_learnt.md	2026-03-07 19:33:57 +00:00
Aaron	2f837ace6e	chore: remove lessons_learnt.md from tracking	2026-03-07 19:33:40 +00:00
Aaron	f8182b24b3	removed another bad file	2026-03-07 19:24:59 +00:00
Aaron	f0531ff861	Removed bad files	2026-03-07 19:22:40 +00:00
Aaron	3d9c4cb49a	feat: add processmanager.create to diskutil and notepad ... - diskutil: add proc_pid global, diskutil_entry idle proc, create process on launch with setWindowOwner, kill on close, zero proc_pid in init - notepad: add pid field to TNotepadState, notepad_entry idle proc, create process on launch with setWindowOwner, kill pid in doCloseWindow - both apps now appear in PS and are manageable via KILL/TERMINATE	2026-03-07 19:18:55 +00:00
Aaron	3a733b1559	feat: auto-mount boot drive to /boot; fix FAT32 deleted entry triple fault ... - Decode multiboot boot_device byte in storagemanager to identify boot device - Add isBootDevice to TStorage_Device; propagate isBootDrive to volumes - Create /boot VFS directory at init; mount boot volume there in auto_mount_volumes - Fix getDirEntries skipping \-marked (deleted) FAT32 entries to prevent triple fault when navigating into a deleted directory via file picker	2026-03-07 18:58:32 +00:00
Aaron	deb513c925	storage: fix VFS corruption, ISO9660 hang, OOM; add notepad, file picker, fdtable, GPT, async I/O ... VFS fixes: - GetDirectoryListing(otVDIRECTORY) now returns a heap-allocated snapshot instead of a raw live-tree pointer; FreeDirectoryListing no longer corrupts the VFS tree (fixes page fault on repeated navigation) - volumeGetDirectories: guard LL_Size > 0 before loop to prevent uint32 underflow (0-1 = 0xFFFFFFFF) causing 4B kalloc iterations -> OOM - Free entry^.fileName and dirList in all branches (memory leak fix) iso9660: - equalsIgnoreCase: guard la=0 before loop (same uint32 underflow bug) - readDirectoryEntries/resolvePath: add 65536/256-iter safety caps storagemanager: - Strip debug syslog calls that were allocating 6+ strings per I/O (hundreds of I/Os x 6 allocs exhausted the heap) Process manager: - Per-process FDTable and Cwd initialised on create, freed on reap - proc_await: use pointer-indirection spin per lesson #6 (FPC caches non-volatile reads; raw while flag=0 returns immediately) - graphicsrefresh: move LVGL handler from timer ISR (IF=0) to a dedicated process so LVGL callbacks can call blocking I/O New units: - fdtable.pas: per-process file descriptor table (fd_alloc/get/close) - iorequest.pas: heap allocation helpers for TIORequest - gpt.pas: GPT header/entry read + CRC validation - filepicker.pas: reusable OS-level open/save file picker dialog - notepad.pas: GUI text editor with selection, indent, save-as Shell commands (diskcmd, partcmd, volcmd, diskutil): - Route output to stdout_buf instead of syslog (lesson #4) - diskutil: async add/remove/format partition; cache-based device display Add Apache 2.0 license headers to storagemanager.pas, iso9660.pas, fat32.pas, storagetest.pas Lessons learnt: #9 VFS listing must return snapshot (not live pointer)	2026-03-07 18:58:32 +00:00
Aaron	789fb7971a	getting ready	2026-03-07 18:57:38 +00:00
Aaron	4e3acd6af7	Storage system: AHCI, IDE rework, VFS, volume manager, flatfs, async IO, IOAPIC	2026-03-07 18:45:25 +00:00
admin	262d064b6d	Merge pull request 'Fix: PS/2 mouse ISR blocking; convert USB polling & GFX refresh to processes; remove dead scheduler' (#48) from feature/ps2-mouse-fix into develop ... Reviewed-on: #48	2026-03-07 00:40:20 +00:00
t3hn3rd	738e5828f6	Fix PS/2 mouse ISR blocking; convert USB polling & GFX refresh to processes; remove dead scheduler ... PS/2 Mouse: - Fix ISR spin-blocking by reading port $60 directly with inb() instead of calling mouse_read(), which uses mouse_wait_long (100k iterations) and would stall the interrupt handler waiting for the next packet byte. Timer (PIT): - Increase PIT frequency from ~1024 Hz to ~8 kHz (divisor 1193 -> 149) for more granular timer ticks. Graphics Refresh: - Replace timer-hook-driven rendering (driver/timers/graphicsrefresh) with a dedicated 'gfxd' process that runs a continuous render loop, keeping the vCPU active to avoid NEM/Hyper-V pause-loop descheduling. - Move uidebug from driver/video/ to prog/. - Update FPS calculation to account for 8 kHz tick rate. USB Hotplug: - Replace timer-hook-driven polling (driver/timers/usbhotplug) with a dedicated 'usbd' daemon process that sleeps 1s between poll cycles. - Add bounds check in usbcore.usb_check_hotplug for empty HC list. Cleanup: - Remove old scheduler unit (superseded by processmanager/contextswitcher). - Remove tss unit and tss.init() call from kernel. - Remove unused syslog import from contextswitcher. - Reduce BASE_QUANTUM from 8 to 5.	2026-03-07 00:29:38 +00:00
t3hn3rd	9fa1c859ac	Merge pull request 'feature: preemptive process management & TCP/IP barebones' (#41) from feature/process-management into develop ... Reviewed-on: #41 Reviewed-by: Aaron Hance <[email protected]>	2026-03-04 20:04:24 +00:00
t3hn3rd	d01b534a3d	rebase fix: stdio.registerCommand('BSOS') removed from progmanager.pas ... - This can sit in kernel for now, given that's where the handler is. - TODO: Move everything to sit under prog/	2026-03-04 19:49:56 +00:00
t3hn3rd	491b0ea5c3	fix: Allocator Merge Conflicts Resolved	2026-03-04 19:43:43 +00:00
t3hn3rd	de6fde05cc	feature: preemptive process management - implementation progress ... Implement a preemptive multitasking system for the Asuro kernel. Context Switching & Scheduling: - Custom IRQ0 ISR (contextswitcher.pas) with PUSHAD/POPAD ESP-swap - Round-robin scheduler with priority-based quantum - Process table using DList of PProcessContext pointers - Idle process (PID 0) replaces kernel HLT loop Process Lifecycle: - create/kill/terminate/sendMessage API (processmanager.pas) - Process states: Created, Running, Ready, Suspended, Awaiting, Finished, Error - Parent-child tracking (ParentID, smChildExited notification on reap) - proc_yield, proc_sleep_ms, proc_await, proc_suspend, proc_exit Resource Binding & Cleanup: - Per-process resource list (bindResource/unbindResource/unbindAllResources) - TCP sockets auto-bound to owning process (OwnerPID on TTCPSocket) - socket_cleanup + auto-unbind in DestroySocket VTerminal Refactor: - Multi-instance design (heap-allocated TVTermState per terminal) - Foreground process with incremental stdout/stderr drain via LVGL timer - Ctrl+C kills foreground process (killForeground) - Per-terminal CWD, dir stack, FS builtins (CD/LS/PUSHD/POPD) - Background job support (& suffix, JOBS/FG commands) - Command history (Up/Down arrow) Command Consolidation: - 14 commands extracted from 9 units into centralized progmanager.pas - Command procedures exported in host unit interfaces - E1000/TRACER/stdio builtins kept in-place (conditional/circular) New Units: - src/include/proctypes.pas — process type definitions - src/processmanager.pas — core process manager - src/prog/ping.pas — standalone ICMP ping process - src/prog/testcmd.pas — test command (proc_sleep_ms demo) - src/testprocs.pas — process subsystem smoke tests Misc: - ICMP callbacks gain userData parameter for concurrency-safe ping - CLI/STI guards on kalloc/kfree (lmemorymanager.pas) - LV_KEY_CTRLC constant + Ctrl+C interception in LVGL keyboard hook - Window owner PID tracking (windows.pas) - ISR_32 gate override support (isrmanager.pas)	2026-03-04 19:42:33 +00:00
t3hn3rd	fb675a2299	feature: implement TCP (RFC 793) protocol driver ... Add full TCP/IP stack implementation at L4 alongside UDP and ICMP. Core Protocol Engine: - TCP types in nettypes.pas (header, TCB, state enum, error codes, callbacks, OOO entry, socket structures) - 3-way handshake (active & passive OPEN) - Reliable data transfer with ACK and sequence number tracking - Graceful close (FIN_WAIT, CLOSE_WAIT, LAST_ACK, TIME_WAIT) - RST send/receive handling - Retransmission with exponential backoff (max 5 attempts) - Pseudo-header based checksum (RFC 793) Server Support: - LISTEN → SYN_RECEIVED → ESTABLISHED passive open path - Listen backlog enforcement (configurable per-socket) - accept() to retrieve established child connections Robustness & Hardening: - Delayed ACK timer (~200ms) - Nagle's algorithm (buffer small sends while unACKed data pending) - Jacobson/Karels RTT estimation with adaptive RTO - Congestion control (slow start / congestion avoidance) - Zero-window probing with exponential backoff - MSS option negotiation in SYN/SYN-ACK (Kind=2, Len=4) - Keep-alive (30s idle, 10s interval, 5 probes) - Out-of-order segment reassembly (4-slot buffer) Terminal & Testing: - tcpconnect: active open + send "Hello, World!" - tcplisten: passive open with syslog output - tcphttp: HTTP/1.0 GET client Also add push_trace() instrumentation to net, eth2, arp, ipv4, icmp, udp, and dhcp entry points for call tracing, and register tcp in net.init.	2026-03-04 19:39:32 +00:00
t3hn3rd	aa374b6816	Merge pull request 'refactor(memory): complete PMM/VMM/LMM rewrite - bitmap allocators, bug fixes, hardening' (#40) from feature/memory-allocation-optimization into develop ... Reviewed-on: #40 Reviewed-by: Aaron Hance <[email protected]>	2026-03-04 19:34:44 +00:00
t3hn3rd	f427b7bcc7	refactor(memory): complete PMM/VMM/LMM rewrite - bitmap allocators, bug fixes, hardening ... PMM Rewrite: - Replace ~8KB record array with compact bitmaps (PhysPresent/PhysAlloc/PhysScanned, 128B each) - Add PhysOwner[0..1023] for per-block ownership tracking - new_block: O(1) amortised via NextFreeHint + dword-level BSF scan, returns 0 as OOM sentinel - free_block: O(1) direct bit clear with double-free detection - alloc_block: validates PhysPresent and PhysAlloc bits before allocation - Add pmm_free_blocks/pmm_total_blocks stats functions VMM Correctness Fixes: - Fix free_page block extraction (Address SHR 10, was using raw Address field) - Fix invlpg operand (use virtual address, was passing PDE index) - Clear PDE entry on free_page before returning block to PMM - Remove map_page double-write (delegate to map_page_ex only) - Add OOM propagation (new_page returns false if PMM returns 0) - Fix missing pop_trace in new_page error path LMM Rewrite: - Replace per-entry record array with bitmap allocator (93% vs 43% page efficiency) - Layout: Header(24B) + Bitmap(64512B) + Padding + Data at 0x10000 - SIZE_PREFIX=16 for 16-byte aligned returns (SSE MOVAPS requirement) - Next-fit bitmap scan with roving hint (NextFree) and dword-level fast skip - Large alloc sentinel (LARGE_ALLOC_MAGIC=$FFFFFFFE) so kfree detects klalloc'd memory - Implement klfree (was previously a no-op - pages could never be returned) - Implement try_release_page (return fully-free heap pages to VMM/PMM) - Fix interrupt safety: stack-balanced pushfd/cli/pop + restore_if (sti only) Fixes Bad TSS caused by popfd restoring dangerous EFLAGS bits (NT, IOPL) - Zero memory via rep stosd instead of byte-by-byte loop Hardening: - kalloc OOM now triggers BSOD instead of returning nil (90% of callers don't check) - Double-free detection in kfree (verify bitmap bits set before clearing) - Guard bytes ({$IFDEF DEBUG_LMM}): $DEADBEEF sentinel for buffer overrun detection - kpalloc: bounds check (block >= 1024 -> GPF) + syslog MMIO mapping audit log Observability: - Add MEMINFO command as src/prog/meminfo.pas (moved from inline kernel.pas) - Displays multiboot memory, PMM block stats, LMM heap stats - Register via progmanager.pas following standard prog pattern Files changed: - src/pmemorymanager.pas - src/vmemorymanager.pas - src/lmemorymanager.pas - src/kernel.pas - src/progmanager.pas - src/prog/meminfo.pas	2026-03-04 19:23:46 +00:00
Aaron	4ba3c5b524	Merge pull request 'feature/Queues' (#37) from feature/Queues into develop ... Reviewed-on: #37	2026-03-04 00:06:10 +00:00
t3hn3rd	7180ad39d8	Merge pull request 'feature: Pipeline - LVGL Build Caching' (#38) from feature/lvgl-build-caching into develop ... Reviewed-on: #38 Reviewed-by: Aaron Hance <[email protected]>	2026-03-04 00:05:01 +00:00
Aaron	6c7bcc1911	better testing	2026-03-04 00:00:56 +00:00