Commit Graph

2 Commits

Author SHA1 Message Date
lirent 06230ac680 Add PE section enumeration and section views (section-local / RVA / absolute)
vmie_win32_sections lists a module's PE sections (name, RVA, virtual size,
VR_* protection) for any image base in a process address space - including a
base found by scanning, not only loader-list modules. vmie_win32_section_view
gathers a section's bytes into a caller buffer and returns a mem_view_t whose
base_va is chosen by view_base: SECTION_LOCAL (0, section-relative offsets),
MODULE_RVA (ASLR-stable module RVAs), or ABSOLUTE_VA (live VA). Because the pure
scanners report base_va + offset, the mode directly selects the coordinate space
of every hit - feeding a view to sig_all or x86_decode yields section-relative,
RVA, or absolute results with no extra work.

The MZ/PE header walk is factored into one helper that both pe_find_section and
the new enumerator share - no second parser. The whole public surface is
documented with the operational nuances (coordinate stability, borrowed-buffer
lifetime, truncation, residency) and worked examples.
2026-06-16 19:06:59 +03:00
lirent 93966c3df2 Define the win32 engine; add a dump source and physical sigscan
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.
2026-06-15 08:20:50 +03:00