This patch is used to fix two Bugs in backed_block.c
First, fix wrong comparing string way: we should use strcmp rather than
just compare their address. Second, fix using illegal memory risk in
bbl->last_used pointer. When entering queue_bb function,
bbl->last_used = new_bb, but in the following code if
queue_bb(xx, bb, new_bb) return ok, the space of new_bb is released. So
next time, if you use bbl->last_used pointer, may cause segment fault !
Change-Id: I6abb505f9b903b697448639fc64fb7518df5cca1
I caught the fastboot host command sending more data than the fastboot
device can accept. Fastboot host command was sending 36 surplus bytes
because of 3 skip chunks that were not taken into account in
move_chunks_up_to_len() algorithm.
Change-Id: I39a4a033c9b15893bd70e553f17116735ee4a48e
sparse_file_write_block calls functions that might failed. This patch
makes sparse_file_write_block catch the error code and propagate it.
Without this patch, fastboot crashes on a segmentation fault if
usb_write() fail during a sparse file image flashing.
Change-Id: If9c0e8dfac8fa380628a2504e13abe8cf7d62726
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
append2simg causes libsparse to write mmapped data from a file
back to that same file. On btrfs, this sometimes causes a page
of zeroes to be written instead of the file data. Work around
the issue by writing the output to a temporary file and then
renaming it over the original file.
Change-Id: Ia194b6ba0ddb8548747b63292b523756f544706a
This cleans up most of the size-related problems in system/core.
There are still a few changes needed for a clean 64-bit build,
but they look like they might require changes to things like the
fastboot protocol.
Change-Id: I1560425a289fa158e13e2e3173cc3e71976f92c0
Append2simg is a small utility designed to glue data to the end
of a sparse image. Beware that it doesn't do anything clever with
that data.
Change-Id: I33af330cb4f77e0842375797a35aebbb6af60163
Fix the issue that "out" pointer is dereferenced without checking.
Change-Id: I76a57ad7309841218231346f4807ef2be8628737
Signed-off-by: Hong-Mei Li <a21834@motorola.com>
last_block * s->block_size can overflow when writing large filesystems,
cast to 64 bits before multiplying.
Change-Id: I3e54097852ce7d0fd271eab53d65e666284898e4
Until ext4_utils switches to using libsparse, libext4_utils defines some
of the same symbols as libsparse. Fastboot links statically against
both of them, and there is no easy way to make the symbols hidden, so
just rename them in libsparse.
Change-Id: Idc2cfe20efe3c3a7fb8233f453a89bbbeb0dcc8b
Add sparse_file_len, which will compute the size of data that would
be produced if sparse_file_write was called. Useful combined with
sparse_file_callback.
Change-Id: I1a156d1071760f5559483954a5c62ffc20298703
Add sparse_file_repsarse, which splits chunks in an existing sparse
file such that the maximum size of a chunk, plus a header and footer,
is smaller than the given size. This will allow multiple smaller
sparse files to result in the same data as a large sparse file.
Change-Id: I177abdb958a23d5afd394ff265c5b0c6a3ff22fa
Add a new output file subclass that will call a callback for
each block as it is written. Will be used to measure the space
used by each sparse block to allow resparsing files.
Also add sparse_file_callback, which will write out a sparse
file by calling the provided write function.
Change-Id: I18707bd9c357b68da319cc07982e93d1c2b2bee2
Create two subclasses of output_file that can handle normal
and gzipped files, and refactor open_output_fd. Will allow
adding support for an output_file type that is not file
backed.
Change-Id: I26744c74d13f205cf17df1ea9caac1eea9c57357
Abstract the logic from simg2img into libsparse, and add logic
for reading a regular image into libsparse. simg2img then
becomes a simple wrapper around libsparse.
img2simg was not actually making the file sparse, it was using
sparse files to create multiple files that could be pieced back
together. Replace it with a simple wrapper around libsparse.
Its functionality will be replaced by an simg2simg that can
resparse a file into smaller chunks.
Change-Id: I266f70e1c750454183ce46c71a7bb66bbb033a26
When a block is added that is adjacent to another block and of the same
type, merge it. This will be useful for converting regular images to
sparse images, allowing the reader to add a single block at a time and
letting libsparse optimize into larger blocks as it goes.
Does not support merge two blocks that are backed by a data pointer,
only blocks that are backed by a file for now.
Change-Id: I95aa231714cbe01ac194e868c21385806c0bdb97
Add sparse_file_add_fd to include all or part of the contents
of an fd in the output file. Will be useful for re-sparsing files
where fd will point to the input sparse file.
Change-Id: I5d4ab07fb37231e8e9c1912f62a2968c8b0a00ef
Move block loops into sparse.c with iterator helpers in backed_block.c.
Simplify chunk writing by moving skip chunk calls from output_file.c to
sparse.c.
Rename variables to be consistent with new naming.
Remove use of u8, u32, u64.
Change-Id: Ic138ad58bef9f96239266ccee12ee83ea285e7eb
Removes static variables in backed_block.c to allow multiple
sparse files to be open at the same time.
Change-Id: I012d8a424c6e21a7352408416adb7c72ee8add21
This moves an exact copy of libsparse from
system/extras/ext4_utils/libsparse to system/core/libsparse in
preparation for linking tools in system/core against it.
Change-Id: If664e4fcfd6612844ac745589beb1517e7f9fe58
lei wang wang