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* applypatch: Add backup_source parameter to PatchPartition.Tao Bao2019-09-231-3/+4
| | | | | | | | | | | | | | | | | | | And set it to false when installing recovery image via applypatch. We only need to back up the source partition when doing in-place update (e.g. when updating a given partition under recovery). When installing recovery image via applypatch, we won't touch the source partition (i.e. /boot). Removing the backup step also allows dropping the dac_override_allowed permission. Previously it was needed due to the access to /cache. Because applypatch runs as root:root, while /cache is owned by system:cache with 0770. Bug: 68319577 Test: Invoke the code that installs recovery image; check that recovery is installed successfully without denials. Test: recovery_unit_test passes on taimen. Change-Id: I549a770b511762189d6672a2835b6e403d695919
* applypatch: {Load,Save}FileContents return bool values.Tao Bao2018-08-311-5/+4
| | | | | | Bug: 110106408 Test: Run recovery_unit_test and recovery_component_test on marlin. Change-Id: Id72e24dd00eb451565d90cff6e049f4f4b844ea2
* applypatch: Refactor applypatch().Tao Bao2018-08-311-38/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | applypatch() was initially designed for file-based OTA, operating on individual files. It was later extended to allow patching eMMC targets as a whole, in favor of block-based updates. As we have deprecated file-based OTA since Oreo, part of the code in applypatch() has become obsolete. This CL refactors the related functions, by removing the obsolete logic and focusing on eMMC targets. Since this CL substantially changes applypatch APIs, it adds new functions to avoid unintentionally mixing them together. In particular, it removes `applypatch()`, `applypatch_check()`, `applypatch_flash()`, and adds `PatchPartition()`, `PatchPartitionCheck()`, `FlashPartition()` and `CheckPartition()`. It also replaces the old Edify functions `apply_patch()` and `apply_patch_check()` with `patch_partition()` and `patch_partition_check()` respectively. This CL requires matching changes to OTA generation script (in the same topic). Bug: 110106408 Test: Run recovery_unit_test and recovery_component_test on marlin. Test: `m dist` with non-A/B target. Verify /system/bin/install-recovery.sh on device. Test: `m dist` with non-A/B target using BOARD_USES_FULL_RECOVERY_IMAGE. Verify /system/bin/install-recovery.sh on device. Test: Install an incremental OTA with the new updater and scripts. Change-Id: Ia34a90114bb227f4216eb478c22dc98c8194cb7f
* applypatch: Change applypatch command-line arguments.Tao Bao2018-07-201-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This applies to the standalone applypatch executable (/system/bin/applypatch on device). This executable is only used when installing (via patching or flashing) a recovery image on non-A/B device. This CL removes the support for patching non-eMMC targets from applypatch that has been deprecated as part of file-based OTA. For patching eMMC targets, it also drops the support for accepting multiple patches (not useful, since the source file must be fixed). This CL needs the matching change in the same topic, which writes the script of "/system/bin/install-recovery.sh". Note that this CL doesn't chanage the applypatch API signatures, in order to minimize the CL size. *BEFORE* usage: /system/bin/applypatch [-b <bonus-file>] <src-file> <tgt-file> <tgt-sha1> <tgt-size> [<src-sha1>:<patch> ...] or /system/bin/applypatch -c <file> [<sha1> ...] or /system/bin/applypatch -l Filenames may be of the form EMMC:<partition>:<len_1>:<sha1_1>:<len_2>:<sha1_2>:... to specify reading from or writing to an EMMC partition. *AFTER* Usage: check mode applypatch --check EMMC:<target-file>:<target-size>:<target-sha1> flash mode applypatch --flash <source-file> --target EMMC:<target-file>:<target-size>:<target-sha1> patch mode applypatch [--bonus <bonus-file>] --patch <patch-file> --target EMMC:<target-file>:<target-size>:<target-sha1> --source EMMC:<source-file>:<source-size>:<source-sha1> show license applypatch --license Bug: 110106408 Test: Run recovery_component_test and recovery_unit_test on marlin. Test: Build a non-A/B target that has /system/bin/install-recovery.sh. Verify that it installs recovery image successfully. Test: Build a non-A/B target that has /system/bin/install-recovery.sh in flashing mode. Verify that it installs recovery image successfully. Change-Id: I71f9a71fb457e6f663e0b5511946949e65b4b78c
* applypatch: Consolidate CacheSizeCheck() and MakeFreeSpaceOnCache().Tao Bao2018-07-131-5/+4
| | | | | | | | | | | | | | | | | | They are doing exactly the same thing, except for the slightly different error return value (1 vs -1). int CacheSizeCheck(size_t bytes); int MakeFreeSpaceOnCache(size_t bytes_needed); This CL consolidates the two functions and uses bool as its return type. // Checks whether /cache partition has at least 'bytes'-byte free space. Returns true immediately // if so. Otherwise, it will try to free some space by removing older logs, checks again and // returns the checking result. bool CheckAndFreeSpaceOnCache(size_t bytes); Test: Run recovery_unit_test and recovery_component_test on marlin. Change-Id: I94a96934d2b18713f8f39ad5aa96a02c98d87963
* applypatch: Fix the return type of FreeSpaceForFile().Tao Bao2018-07-121-7/+3
| | | | | | | | | | | | | | Prior to this CL, FreeSpaceForFile() was returning `size_t`, which may overflow on ILP32 when called on a partition with 4GiB+ free space. Additionally, it was returning static_cast<size_t>(-1) on error, but the caller in freecache.cpp didn't check for that. This CL changes its return type to `int64_t`, and moves the function into freecache.cpp since there's no external caller. Test: Run recovery_unit_test on marlin. Test: Code search shows no external user of FreeSpaceForFile(). Change-Id: I00f501a057726e1f1ab69f367c46c77b30f2d774
* applypatch: Restrict applypatch_check to eMMC targets.Tao Bao2018-07-101-3/+4
| | | | | | | | | | | | | | | | | | | | | | | Also fix an error-pone behavior in previous code when verifying an eMMC target. As long as it loads the partition content successfully according to the SHAs embedded in the filename, it shouldn't further check against the SHAs given in the second argument. Because the loaded contents relate to a specific partition size. For example: apply_patch_check( "EMMC:/boot.img:src_size:src_hash:tgt_size:tgt_hash", "src_hash"); Assume "/boot.img" already has the desired hash of "tgt_hash", the previous code would give wrong verification result. The issue can be addressed by additionally listing "tgt_hash" as one of the desired SHAs (or by applying this CL). Bug: 110106408 Test: Run recovery_unit_test and recovery_component_test on marlin. Change-Id: I8daafdbecd083f687e24d563ab089caa25667633
* applypatch: {Load,Save}FileContents and ParseSha1 take std::string.Tao Bao2018-06-201-3/+3
| | | | | | Test: mmma -j bootable/recovery Test: Run recovery_component_test on marlin. Change-Id: Ifcf244346a88dac833d91b169a4c2aee1fe677f1
* applypatch: Clean up the function comments.Tao Bao2018-06-201-10/+48
| | | | | | | | | | Also two minor changes (other than renaming some parameters): - Added constness to the first parameter of FindMatchingPatch(); - Declared WriteToPartition() as static. Bug: 110106408 Test: mmma -j bootable/recovery Change-Id: I388958c944a23ce4a38a757ce2249f6a89dd4f03
* Convert deflate image chunks to raw if the raw data is smallerTianjie Xu2018-05-241-1/+2
| | | | | | | | | | | | | | | | | The imgpatch will fail on empty deflates because the bspatch won't call the sink function if the target length is zero. Instead of compressing an empty string, it's cleaner to not generate such empty deflate chunks in the patch. Therefore, we can just convert the chunk type to raw if the target length is smaller than the patch data. Also adjust some unit tests and add the testdata gzipped_source & gzipped_target. These two files are ~1K each and are generated by gzipping two slightly different regular files. Bug: 79265132 Test: unit tests pass, imgpatch applys successfully on the given src/tgt Change-Id: I6bfff3251918137f6762a6f9e9551642371a1124
* applypatch: Drop the SHA_CTX parameter in Apply{BSDiff,Image}Patch.Tao Bao2018-04-201-6/+6
| | | | | | | | | | As they're accepting the SinkFn callback, it makes more sense to leave the work to their callers. Test: mmma -j bootable/recovery Test: Run recovery_component_test on marlin. Test: No other active user of the two functions. Change-Id: I8d67b38ce037925442296f136b483e0c71983777
* Remove the old log files if cache space is insufficient for OTATianjie Xu2018-04-131-1/+5
| | | | | | | | | | | We set the limit of the max stash size to 80% of cache size. But the cache space can still be insufficient for the update if the log files occupy a large chunk of /cache. So remove the old logs for now to make room for the update. Bug: 77528881 Test: unit tests pass Change-Id: Ia8bcb0ace11f8164ad9290bfb360e08e31d282cb
* Add a singleton CacheLocation to replace the hard coded locationsTianjie Xu2018-02-281-6/+0
| | | | | | | | | | | | This class allows us to set the following locations dynamically: cache_temp_source, last_command_file, stash_directory_base. In the updater's main function, we reset the values of these variables to their default locations in /cache; while we can set them to temp files in unit tests or host simulation. Test: unit tests pass Change-Id: I528652650caa41373617ab055d41b1f1a4ec0f87
* Remove the assumption of target chunk size in imgdiffTianjie Xu2018-02-231-2/+3
| | | | | | | | | | | | | | | | In the split mode of imgdiff, we used to assume that the size of a split target chunk is always greater than the blocksize i.e. 4096. This may lead to the following assertion failure: I0221 04:57:33.451323 818464 common.py:205 imgdiff F 02-21 04:57:33 821203 821203 imgdiff.cpp:999] Check failed: tgt_size >= BLOCK_SIZE (tgt_size=476, BLOCK_SIZE=4096) This CL removes the assumption and handles the edge cases. Test: generate and verify the incremental update for TFs in the bug; unit test passes Bug: 73757557 Bug: 73711365 Change-Id: Iadbb4ee658995f5856cd488f3793980881a59620
* applypatch: Remove the 'st' field from FileContents.Tao Bao2017-12-071-2/+0
| | | | | | | | It used to keep track of the stat(2) info (e.g. st_mode/st_gid/st_uid) while patching a file in file-based OTA. Test: Build and use the new updater to apply an update on bullhead. Change-Id: Ibf8f0f4b14298a9489bf24a2678bb279c5d9c8f3
* Switch imgdiff to libbase loggingTianjie Xu2017-11-161-5/+2
| | | | | | | | Also add a verbose option. And we won't print messages of 'info' severity unless '-v' is present. Test: run imgdiff and check the logs. Change-Id: I1b90874baea8e72e2a2323a0b63bc5d35e653e6b
* applypatch: Change the patch parameter to const Value& in Apply{BSDiff,Image}Patch.Tao Bao2017-11-101-2/+13
| | | | | | | It used to be "const Value*", but nullptr won't be a valid input. Test: recovery_host_test; recovery_component_test Change-Id: I904b5689ac3e64504088bf0544c9fb5d45a52243
* Switch to bionic gtest in bootable/recoveryTianjie Xu2017-11-031-6/+5
| | | | | | | | | | | | | | | | | We encountered segfaults in Imgdiff host tests due to the failure to reset states of getopt. The problem can be solved by switching to use bionic's gtest where a new process is forked for each test. Also modify the recovery_component_test to make sure it runs in parallel. Changes include: 1. Merge the writes to misc partition into one single test. 2. Change the hard coded location "/cache/saved.file" into a configurable variable. Bug: 67849209 Test: recovery tests pass Change-Id: I165d313f32b83393fb7922c5078636ac40b50bc2
* Merge "Use SuffixArrayIndexInterface opaque type instead of the underlying data pointer."Treehugger Robot2017-10-241-2/+3
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| * Use SuffixArrayIndexInterface opaque type instead of the underlying data pointer.Alex Deymo2017-10-241-2/+3
| | | | | | | | | | | | | | | | | | | | | | bsdiff interface is changing such that it hides the suffix array pointer from the public interface. This allows to use a different suffix array data size depending on the input size, running much faster in the normal case. Bug: 34220646 Test: `make checkbuild`; Ran an incremental update generation on a non-A/B device. Change-Id: I78e766da56cf28bc7774b8c8e58527bc11d919fb
* | Move rangeset.h and print_sha1.h into otautil.Tao Bao2017-10-111-1/+1
|/ | | | | | | | | Also drop the "bootable/recovery" path in LOCAL_C_INCLUDES from applypatch modules. Test: lunch aosp_{angler,bullhead,fugu,dragon,sailfish}-userdebug; mmma bootable/recovery Change-Id: Idd602a796894f971ee4f8fa3eafe36c42d9de986
* applypatch: Forward declare struct Value.Tao Bao2017-10-091-1/+2
| | | | | | | | | | | | | And move '#include "edify/expr.h"' into .cpp files. This breaks the transitive dependency on libedify. Modules that include "applypatch/applypatch.h" don't need to add libedify into their dependency list, unless they really need anything from libedify. Build libedify static library for host, which is needed by libimgpatch. Test: mmma bootable/recovery Change-Id: Ibb53d322579fcbf593438d058d9bcee240625941
* Output split information for imgdiff when handling large apksTianjie Xu2017-09-211-1/+5
| | | | | | | | | | | Add a mandatory option in imgdiff to write the split info (i.e. patch_size, tgt_size, src_ranges) to file when handling large apks. Therefore, the caller of imgdiff can create split transfers based on the info. Bug: 63542719 Test: unit tests pass Change-Id: I853d55d1f999fd576474faa81077f7307f4d856d
* Improve imgdiff for large zip filesTianjie Xu2017-09-061-1/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to the cache size limit for OTA generation, we used to split large zip files linearly into pieces and do bsdiff on them. As a result, i) we lose the advantage of imgdiff; ii) if there's an accidental order change of some huge files inside the zip, we'll create an insanely large patch. This patch splits the src&tgt more smartly based on the zip entry_name. If the entry_name is empty or no matching source is found for a target chunk, we'll skip adding its source and later do a bsdiff against the whole split source image (this rarely happens in our use cases except for the metadata inside a ziparchive). After the split, the target pieces are continuous and block aligned, while the sources pieces are mutually exclusive. (Some of the source blocks may not be used if there's no matching entry_name in the target.) Then we will generate patches accordingly between each split image pairs. Afterwards, if we apply imgpatch to each pair of split source/target images and add up the patched result, we can get back the original target image. For example: Input: [src_image, tgt_image] Split: [src-0,tgt-0; src-1,tgt-1, src-2,tgt-2] Diff: [ patch-0; patch-1; patch-2] Patch: [(src-0,patch-0)=tgt-0; (src-1,patch-1)=tgt-1; (src-2,patch-2)=tgt-2;] Append: [tgt-0 + tgt-1 + tgt-2 = tgt_image] Peformance: For the small package in b/34220646, we decrease the patch size of chrome.apk dramatically from 30M to 400K due to the order change of two big .so files. On two versions of angler, I also observe decent patch size decrease. For chrome.apk, we reduced the size from 5.9M to 3.2M; and for vevlet.apk from 8.0M to 6.5M. Bug: 34220646 Test: recovery component test && apply imgdiff & imgpatch on two chrome.apk Change-Id: I145d802984fa805efbbac9d01a2e64d82ef9728b
* Move Image/ImageChunk/PatchChunk declaration into header filesTianjie Xu2017-08-191-0/+247
| | | | | | | | | 1. Move the declaration of the Image classes to the header file to make testing easier. 2. Also move rangeset.h to bootable/recovery to allow access in imgdiff. Test: recovery component test Change-Id: I68a863e60a3f2e7ae46ee48f48eb15391f5f4330
* Print SHA1 of the patch if bsdiff fails with data errorTianjie Xu2017-05-161-2/+0
| | | | | | | | | | | | | | This will help us to identify the patch corruption. Meanwhile fix a wrong size parameter passed to bspatch. (patch->data.size() into patch->data.size() - patch_offset). Also remove the only usage of "ApplyBSDiffPatchMem()" and inline its Sink function for simplicity. Bug: 37855643 Test: Prints SHA1 for corrupted patch in imgdiff_test. Change-Id: Ibf2db8c08b0ded1409bb7c91a3547a6bf99c601d
* applypatch: Let Apply{BSDiff,Image}Patch accept std::function.Tao Bao2017-03-282-5/+8
| | | | | | Test: mmma bootable/recovery system/update_engine Test: recovery_component_test Change-Id: I93c2caa87bf94a53509bb37f98f2c02bcadb6f5c
* applypatch: Change the ssize_t length parameters to size_t.Tao Bao2017-03-282-15/+10
| | | | | | | | | | | | | | | | | Mostly for applypatch family APIs like ApplyBSDiffPatch() and ApplyImagePatch(). Changing to size_t doesn't indicate they would necessarily work with very large size_t (e.g. > ssize_t), just similar to write(2). But otherwise accepting negative length doesn't make much sense. Also change the return type of SinkFn from ssize_t to size_t. Callers tell a successful sink by comparing the number of written bytes against the desired value. Negative return values like -1 are not needed. This also makes it consistent with bsdiff::bspatch interface. Test: recovery_component_test Test: Apply an incremental with the new updater. Change-Id: I7ff1615203a5c9854134f75d019e266f4ea6e714
* applypatch: Don't expose FindMatchingPatch().Tao Bao2016-12-281-2/+1
| | | | | Test: make Change-Id: Ic77c4669574b6129e06aa6051804f419bcc8196c
* Add tests for imgdiff.Tao Bao2016-12-202-4/+45
| | | | | | | | | | | | Factor out libimgdiff static library for testing purpose. This CL adds the imgdiff tests on host and on target both (similar to libimgpatch). In practice, we only need imgdiff binary on host, and libimgpatch on target. But they should build and pass tests on both platforms. Test: recovery_host_test passes; recovery_component_test passes. Change-Id: I0eafb7faf727cdf70066310e845af6ee245d4f60
* applypatch: Switch the parameter of Value** to std::vector.Tao Bao2016-10-291-7/+8
| | | | | | Test: Unit tests and install-recovery.sh pass on angler and dragon. Change-Id: I328e6554edca667cf850f5584ebf1ac211e3d4d1
* Change StringValue to use std::stringTianjie Xu2016-10-151-6/+4
| | | | | | | | | | | Changing the field of 'Value' in edify to std::string from char*. Meanwhile cleaning up the users of 'Value' and switching them to cpp style. Test: compontent tests passed. Bug: 31713288 Change-Id: Iec5a7d601b1e4ca40935bf1c70d325dafecec235
* Fix the improper use of LOCAL_WHOLE_STATIC_LIBRARIES.Tao Bao2016-03-031-0/+87
| | | | | | | | | | | | | If two libraries both use LOCAL_WHOLE_STATIC_LIBRARIES and include a same library, there would be linking errors when generating a shared library (or executable) that depends on the two libraries both. Also clean up Android.mk files. Remove the "LOCAL_MODULE_TAGS := eng" line for the updater module. The module will then default to "optional" which won't be built until needed. Change-Id: I3ec227109b8aa744b7568e7f82f575aae3fe0e6f
* applypatch: Compile libimgpatch for target and host.Sen Jiang2016-01-281-0/+26
update_engine need it for the new IMGDIFF operation. Also removed __unused in ApplyImagePatch() as I got error building it for the host, and I think it's dangerous not checking the size of the input. Test: mma Bug: 26628339 Change-Id: I22d4cd55c2c3f87697d6afdf10e8106fef7d1a9c
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