- 14 Jan, 2016 1 commit
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Tao Bao authored
For applying update from SD card, we used to use a thread to serve the file with fuse. Since accessing through fuse involves going from kernel to userspace to kernel, it may run into deadlock (e.g. for mmap_sem) when a page fault occurs. Switch to using a process instead. Bug: 23783099 Bug: 26313124 Change-Id: Iac0f55b1bdb078cadb520cfe1133e70fbb26eadd
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- 24 Jul, 2015 1 commit
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- 20 Jul, 2015 1 commit
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Tao Bao authored
Change-Id: I68770ad1a9e99caee292f8010cfd37dfea3acc64
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- 10 Apr, 2015 1 commit
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Elliott Hughes authored
Change-Id: I5afaf70caa590525627c676c88b445d3162de33e
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- 10 Jul, 2014 2 commits
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Doug Zongker authored
Make a fuse filesystem that sits on top of the selected package file on the sdcard, so we can verify that the file contents don't change while being read and avoid copying the file to /tmp (that is, RAM) before verifying and installing it. Change-Id: Ifd982aa68bfe469eda5f839042648654bf7386a1
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Doug Zongker authored
Split the adb-specific portions (fetching a block from the adb host and closing the connections) out from the rest of the FUSE filesystem code, so that we can reuse the fuse stuff for installing off sdcards as well. Change-Id: I0ba385fd35999c5f5cad27842bc82024a264dd14
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- 02 Jul, 2014 1 commit
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Doug Zongker authored
Implement a new method of sideloading over ADB that does not require the entire package to be held in RAM (useful for low-RAM devices and devices using block OTA where we'd rather have more RAM available for binary patching). We communicate with the host using a new adb service called "sideload-host", which makes the host act as a server, sending us different parts of the package file on request. We create a FUSE filesystem that creates a virtual file "/sideload/package.zip" that is backed by the ADB connection -- users see a normal file, but when they read from the file we're actually fetching the data from the adb host. This file is then passed to the verification and installation systems like any other. To prevent a malicious adb host implementation from serving different data to the verification and installation phases of sideloading, the FUSE filesystem verifies that the contents of the file don't change between reads -- every time we fetch a block from the host we compare its hash to the previous hash for that block (if it was read before) and cause the read to fail if it changes. One necessary change is that the minadbd started by recovery in sideload mode no longer drops its root privileges (they're needed to mount the FUSE filesystem). We rely on SELinux enforcement to restrict the set of things that can be accessed. Change-Id: Ida7dbd3b04c1d4e27a2779d88c1da0c7c81fb114
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- 11 Jun, 2009 1 commit
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Doug Zongker authored
Adds the following edify functions: mount unmount format show_progress delete delete_recursive package_extract symlink set_perm set_perm_recursive This set is enough to extract and install the system part of a (full) OTA package. Adds the updater binary that extracts an edify script from the OTA package and then executes it. Minor changes to the edify core (adds a sleep() builtin for debugging, adds "." to the set of characters that can appear in an unquoted string).
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- 04 Mar, 2009 2 commits
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The Android Open Source Project authored
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The Android Open Source Project authored
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- 21 Oct, 2008 1 commit
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The Android Open Source Project authored
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