e22f9f5676 removed all the old binary test
files, leaving broken symlinks in hfuzz_workspace. This commit adds the
source files for generating them from scratch.
This commit also replaces toml_edit with toml since the former cannot
deserialize u64 values.
Fixes: #532
Signed-off-by: Andrew Gunnerson <accounts+github@chiller3.com>
File reopening was conflating ownership of file-like types with the fact
that they support parallel reads and writes at arbitrary offsets.
The Reopen trait has now been replaced with ReadAt and WriteAt traits,
which are implemented for types that support parallel I/O. If a type
compatible with the standard Read/Write/Seek traits is needed, a new
UserPosFile type can act as the bridge by storing its own userspace file
offset. For the opposite bridge, there's MutexFile, which implements
ReadAt/WriteAt by using locks to make the operations sequential. This is
only really used in the tests though.
This eliminates the need for the PSeekFile and SharedCursor types. The
standard File and Cursor types can be used instead, and if shared
ownership is needed, Arc can be used.
Signed-off-by: Andrew Gunnerson <accounts+github@chiller3.com>
This supports all features of Android sparse images, including holes,
and CRC32 (both full image checksum and CRC32 chunks).
Partial sparse images, like those included in GrapheneOS' new optimized
factory images, can also be packed and unpacked with these new commands,
unlike AOSP's simg2img and img2simg tools.
This new functionality is not relevant for avbroot's main use case, but
is useful for unpacking certain factory images for comparison with OTAs
during troubleshooting.
Signed-off-by: Andrew Gunnerson <accounts+github@chiller3.com>
This supports both empty and normal LP images, including those that span
multiple files/devices.
Currently, repacked files are semantically equivalent, but not exactly
identical. avbroot's data structure for the metadata does not preserve
the arbitrary partition ordering of the LP image. Instead, to make the
API a bit nicer, it only preserves the relative partition ordering
within partition groups.
Signed-off-by: Andrew Gunnerson <accounts+github@chiller3.com>
This is still not the ideal API, but it makes the code quite a bit more
readable since we no longer have to pass around closures everywhere that
multithreaded reads and writes to the same file are needed.
Signed-off-by: Andrew Gunnerson <accounts+github@chiller3.com>
The Magisk boot image patcher still reads all the entries into memory
for simplicity, but everything else now uses the streaming reader.
Signed-off-by: Andrew Gunnerson <accounts+github@chiller3.com>
This initially includes fuzzers for the AVB and boot image parsers. The
initial input corpus are the same test files we use for the round trip
tests.
Issue: #160
Signed-off-by: Andrew Gunnerson <accounts+github@chiller3.com>
Andrew Gunnerson