All are OS-agnostic handlers keyed by vmie_mem* + cr3, built on the windowed
sweep / region walk / matcher; none names a Windows concept and each compiles
against include/ alone.
Scanning: a compiled multi-pattern automaton (Aho-Corasick over each pattern's
longest literal anchor, then a masked verify) finds N signatures in one sweep
pass (sigscan.h sigset; scan.h gva_sig_scan_multi). gva_code_xref decodes
rel32 call/jmp and RIP-relative lea/mov to find every instruction targeting a
given VA.
Pointer graph (pmap.h): one sweep indexes every qword whose value lands in a
mapped region into reverse + forward edges. pmap_referrers is the keystone -
it answers who-points-here, class-instance enumeration (referrers of a vtable
VA), and string xref (referrers of a string VA) from the same index;
pmap_paths is the indexed counterpart to scan_pointer's one-shot DFS;
struct_dissect classifies the qwords of an instance (pointer/vtable/float/
int/string) into a field map.
Temporal (snapdiff.h): snap_take captures a window's bytes, snap_diff reports
the changed runs against a later read.
Name and isolate the Windows engine as one of potentially several. The
public surface moves to include/win32.h with an opaque vmie_win32 handle
(vmie_win32_open/close/mem); the engine's Windows internals — host bring-up,
the struct-offset profile, process/module/PE/text decode — live under
src/engine/win32. The generic address-space layer stays in src/engine
(gva.c + engine-arch.h, carrying no offset table): gva.c is de-profiled, and
CR3 bring-up reaches the hot translator through a cold gva_translate bridge
so the zero-copy hot path stays private and inlinable.
A memory source is now first-class and public: vmie_mem_open/_open_segs/
_close open a flat dump (or an explicit segment map) as a vmie_mem, with
gpa_seg promoted to the public contract. The physical signature scan is
exposed source-agnostically: sig_scan_mem returns GPAs for any vmie_mem,
sig_scan_sources scans several sources with per-source attribution, and
sig_from_bytes builds an exact needle from a byte span. The pure matcher is
unchanged; dumps and the live engine image are scanned uniformly, neither
needing the other.
CORE (src/core): vmie_mem — guest-physical substrate with a data-driven
segment map (replaces the hardcoded 4 GiB PCI-hole topology). ENGINE
(src/engine): x86-64 paging + Windows bring-up; produces the generic memory
model. HANDLERS (src/handlers): the signature/value/pointer scanners, which
now consume an OS-agnostic contract.
Keystone: gva_ctx is split into vmie_mem (core) + vmie (engine); the generic
access functions take vmie_mem* + cr3 and no longer compile in the Windows
offset table. New public contract include/memmodel.h (vmie_mem, mem_view_t,
vregion, task, range, the gva_* access); win32 surface in include/vmie.h.
Leak relocations: the PE parser, UTF-16 decode and CR3-recovery heuristics
move engine-side; the matcher stays a pure, source-agnostic handler, and the
pointer scanner takes a generic range[] instead of reaching into the process
enumerator.
Static library over a flat RW mmap of guest RAM: GPA/GVA paging walks,
beacon-driven bootstrap, dynamic struct-offset profiling, process and
module enumeration, a region map, and value/pointer/signature scanners on
a shared windowed sweep. Public API in include/; internals under src/.
Thin CLI demonstrator over the public API. Guest agent cross-compiled to
Windows x86-64 via mingw-w64. CMake: static library + CLI + guest target,
C17.
lirent
