When target defines 'BOARD_EXT4_SHARE_DUP_BLOCKS := true', the generated
system/vendor images may contain shared blocks (i.e. some blocks will
show up in multiple files' block list), which violates the current
assumptions in BBOTA script.
This CL allows generating BBOTAs by considering the first occurrence as
the "owner" of the shared blocks. All the later users of the shared
blocks will have an incomplete block list, whose RangeSet's will be
tagged with 'uses_shared_blocks'.
Files with 'uses_shared_blocks' tag will not be diff'd with imgdiff,
potentially with patch size penalty. Such files will be accounted for in
imgdiff stats report, where we can revisit for a better solution.
Bug: 64109868
Test: Generate BBOTA full and incremental package with targets defining
'BOARD_EXT4_SHARE_DUP_BLOCKS := true'.
Change-Id: I87fbc22eef7fafe2a470a03fdcfa1babf088ea8d
This CL uses the 'incomplete' tag to skip applying imgdiff to files with
incomplete block list. It's not the ideal fix to address the holes in
ext4 images, but would unhide other imgdiff issues covered by the
unconditional fallback.
Bug: 68016761
Test: Generate an incremental OTA package from images with incomplete
block list. Check the imgdiff stats report.
Test: `python -m unittest test_blockimgdiff`
Change-Id: Ice77686414e70f5e42de35c1757fb31cf02e4fd4
pylint complains about undefined `diff_done`:
W:754, 8: Global variable 'diff_done' undefined at the module level (global-variable-undefined)
W:820,14: Global variable 'diff_done' undefined at the module level (global-variable-undefined)
It would still warn about using global statement after adding the
definition.
W:859, 8: Using the global statement (global-statement)
W:925,14: Using the global statement (global-statement)
This CL computes 'diff_done' via 'len(diff_queue)' instead. It also
moves the progress reporting _before_ the diff work. This way it avoids
showing 100% progress with still changing filenames (because multiple
workers could see an empty queue simultaneously upon finishing their own
works).
There're possible alternatives, such as using the 'nonlocal' keyword in
Python 3 (which we're not there yet), or by using mutable object instead
(e.g. 'diff_done = [0]'). This CL looks cleaner, since it just kills the
var.
Test: Generate a BBOTA incremental. Check the on-screen progress
report.
Test: `pylint --rcfile=pylintrc blockimgdiff.py` no longer complains
about the global diff_done.
Change-Id: I339824735527e1f794b5b1dc99ff3fdb2da85744
The secondary payload should always be applied with
SWITCH_SLOT_ON_REBOOT=0. This CL moves the 'secondary' parameter from
Payload.WriteToZip() to Payload.__init__(). So it can append the flag to
secondary/payload_properties.txt.
Bug: 35724498
Test: Generate an A/B OTA with --include_secondary. Check
secondary/payload_properties.txt entry in the generated ZIP.
Test: `python -m unittest test_ota_from_target_files`
Change-Id: I816c07ab57a1c8a52eff785801634b8b1cb134d4
We have a couple of active imgdiff workarounds (and likely with one more
inbounding that allows having shared blocks in ext4 image). Most of
these workarounds need extending imgdiff's capability. While us not
getting there anytime soon, collect the stats to better understand the
impact of each kind so we can prioritize accordingly.
A sample report is as follows.
Imgdiff Stats Report
========================
APK files diff'd with imgdiff (count: 88)
-------------------------------------------
/system/priv-app/Shell/Shell.apk
...
Large APK files split and diff'd with imgdiff (count: 4)
----------------------------------------------------------
/system/priv-app/Settings/Settings.apk
...
Bug: 68016761
Test: Generate an incremental BBOTA package. Check the stats report.
Test: python -m unittest test_blockimgdiff
Change-Id: I27ad862cde472ab2806db877632ce5a0607420f2
In Transfer class, unbundle 'intact' with the monotonicity of the input
ranges. Negate the logic of 'intact', and thus rename it to 'trimmed'.
Move this property from an attribute of Transfer class as the one in
RangeSet.extra. 'trimmed' indicates whether the source / target ranges
have been modified after creating the Transfer() instance.
The logic that determines whether we can apply imgdiff has been
refactored and consolidated into BlockImageDiff.CanUseImgdiff(). Now
both of the two paths call this single copy, i.e. the one that detects
large APKs (before creating Transfer()'s), and the other that's about to
generate the patch for a given Transfer instance.
Bug: 68016761
Test: python -m unittest test_blockimgdiff
Test: Generate an incremental BBOTA package.
Change-Id: Id07195f63f1fa6c3af6e9091940d251cf09fa104
There is an internal buffer in bionic for user/group names that is 32
characters long including the trailing null, so we must restrict the
length of these names during compile time.
Bug: 27999086
Test: Successfully compile a valid config.fs
Test: Fail to compile a config.fs with AID name > 31 characters
Change-Id: I7fe887c630dd4d1033b86a5d8332480eb3b0fa07
These entries are vendor provided and belong on the /vendor partition.
Bug: 27999086
Test: end to end user/group check via config.fs and getpwnam, etc.
Change-Id: I9a5d56da594bf0d04de2b9ce7fd7d9a8151d4682
This change adds a flag so that the mksquashfs wrapper scripts generate
an entry that is fs_config-friendly for the root inode. Namely, the root
entry is expected to have an empty filename.
Bug: 72745016
Test: m -j100 dist
Change-Id: Iebdf79c5af0b9d999b7e5f5fe240abfe52cbadda
'monotonic' has been non-optional since [1] (L-MR1). Fix the comment in
RangeSet.parse(), as well as the use in blockimgdiff.py.
[1] commit 8b72aefb5a.
Test: Generate an incremental BBOTA package.
Change-Id: I7f95231683473b4f0f07f9c83fccc0e36a1340cb
Prior to this CL, the call to delta_generator in
check_ota_package_signature.VerifyAbOtaPayload() didn't redirect stderr.
The logs (mostly INFO) on successful verification added noise to the
normal output, which also upset the unittest result parser.
This CL captures stderr outputs from delta_generator, and will only dump
them on error.
Bug: 72884343
Test: `python -m unittest -v test_ota_from_target_files > /dev/null`
gives clean output.
Test: Inject error into delta_generator. The call to
check_ota_package_signature correctly dumps both of stdout and
stderr outputs.
Change-Id: I014a4b21bf758dcf0a4b9963259d6019851935ee
By default, an A/B OTA package doesn't contain the images for the
secondary slot (e.g. system_other.img). Specifying
"--include_secondary" that's introduced in this CL allows generating
a separate payload that will install secondary slot images. Both
payloads will be added to the generated A/B OTA package.
An example A/B OTA package with secondary payload
|
+-- payload.bin
|
+-- payload_properties.txt
|
+-- secondary/payload.bin
|
+-- secondary/payload_properties.txt
|
+-- ...
Such a package needs to be applied in a two-stage manner. During the
first stage, the updater applies the primary payload only. Upon
finishing, it reboots the device into the newly updated slot. It then
continues to install the secondary payload to the inactive slot, but
without switching the active slot at the end (needs the matching support
in update_engine, i.e. SWITCH_SLOT_ON_REBOOT flag).
Due to the special install procedure, the secondary payload will be
always generated as a full payload.
Bug: 35724498
Test: Generate full and incremental OTAs with --include_secondary. Check
the generated OTAs.
Test: python -m unittest test_ota_from_target_files
Change-Id: I975e826bec492e86eb400f99de0c355a32420127
When calling 'openssl x509 -pubkey' to extract the public key from a
certificate, openssl 1.0 and 1.1 handle the '-out' parameter
differently. openssl 1.0 doesn't write the output into the specified
filename, which leads to the payload verification failure in
check_ota_package_signature.VerifyAbOtaPayload(). This CL addresses
the issue by always collecting the output from stdout instead.
It also refactors the two copies into common.ExtractPublicKey(), and
adds unittest. get_testdata_dir() is moved into test_utils.py that holds
common utils for running the unittests.
Bug: 72884343
Test: python -m unittest test_common
Test: python -m unittest test_ota_from_target_files
Test: Run sign_target_files_apks with '--replace_ota_keys' on marlin
target_files zip. Check the payload pubkey replacement.
Test: Trigger the tests with forrest, and tests no longer fail on
machines with openssl 1.0.1.
Change-Id: Ib0389b360f064053e9aa7cc0546d718e7b23003b
This breaks down the current WriteABOTAPackageWithBrilloScript() into
smaller and testable units, which also prepares for the work in
b/35724498.
Bug: 35724498
Test: python -m unittest test_ota_from_target_files
Test: Get identical A/B OTA packages w/ and w/o the CL.
Change-Id: I2ea45ce98e2d2baa58e94fb829b7242f6fe685a7
Merged-In: I2ea45ce98e2d2baa58e94fb829b7242f6fe685a7
(cherry picked from commit 036d721812)
This breaks down the current WriteABOTAPackageWithBrilloScript() into
smaller and testable units, which also prepares for the work in
b/35724498.
Bug: 35724498
Test: python -m unittest test_ota_from_target_files
Test: Get identical A/B OTA packages w/ and w/o the CL.
Change-Id: I2ea45ce98e2d2baa58e94fb829b7242f6fe685a7
(cherry picked from commit 036d721812)
