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David Anderson b031def229 Start snapuserd if needed as soon as possible during second-stage init. 
snapuserd is used as a user-space block device implementation during
Virtual A/B Compression-enabled updates. It has to be started in
first-stage init, so that updated partitions can be mounted.

Once init reaches second-stage, and sepolicy is loaded, we want to
re-launch snapuserd at the correct privilege level. We accomplish this
by rebuilding the device-mapper tables of each block device, which
allows us to re-bind the kernel driver to a new instance of snapuserd.
After this, the old daemon can be shut down.

Ideally this transition happens as soon as possible, before any .rc
scripts are run. This minimizes the amount of time the original
snapuserd is running, as well as any ambiguity about which instance of
snapuserd is the correct one.

The original daemon is sent a SIGTERM signal once the transition is
complete. The pid is stored in an environment variable to make this
possible (these details are implemented in libsnapshot).

Bug: 168259959
Test: manual test
Change-Id: Ife9518e502ce02f11ec54e7f3e6adc6f04d94133
2020-11-02 13:24:06 -08:00
bootstat Merge Android R (rvc-dev-plus-aosp-without-vendor@6692709) 2020-08-29 01:42:13 -07:00
cli-test cli-test: support checking exit status. 2020-09-25 16:43:35 -07:00
code_coverage extend syscall minijail for clang code coverage 2020-07-13 13:39:05 -07:00
cpio Remove EXCLUDE_FS_CONFIG_STRUCTURES 2020-03-04 15:34:09 -08:00
debuggerd Start tombstoned early in post-fs-data. 2020-10-01 14:25:36 -07:00
deprecated-adf remove deprecated bp 'subdirs' 2020-01-14 12:18:40 -08:00
diagnose_usb Make the udev vs plugdev distinction a bit clearer. 2020-07-31 15:09:35 -07:00
fastboot libsnapshot: Partially implement OpenSnapshotWriter. 2020-10-14 21:41:36 -07:00
fs_mgr libsnapshot: Add support for first-to-second-stage transitions of snapuserd. 2020-11-02 13:24:05 -08:00
gatekeeperd Chanage uid to userId where it denotes an Android user id. 2020-09-23 18:01:37 -07:00
healthd Merge "health: Add CAP_BLOCK_SUSPEND" 2020-10-15 20:24:17 +00:00
include Remove include/backtrace symlink. 2020-10-20 12:46:14 -07:00
init Start snapuserd if needed as soon as possible during second-stage init. 2020-11-02 13:24:06 -08:00
janitors Add the two best build system janitors. 2019-03-25 10:25:13 -07:00
libappfuse Fix Deadlock Issue On AppFuseBridge 2020-02-18 04:33:06 +00:00
libasyncio Revert "Revert "Set apex_available property"" 2020-03-26 00:23:56 +00:00
libbinderwrapper Make libbinderwrapper available in /vendor partition 2018-04-06 08:41:21 +09:00
libcrypto_utils libcrypto_utils: switch to C++. 2020-08-21 10:34:56 -07:00
libcutils libcutils: API to disable memory mitigations 2020-10-10 00:16:24 +00:00
libdiskconfig Rename target.linux[_x86[_64]] to target.linux_glibc[_x86[_64]] 2017-10-02 10:44:29 -07:00
libgrallocusage gralloc: Set min_sdk_version 2020-04-23 23:50:08 +09:00
libkeyutils Update language to comply with Android's inclusive language guidance 2020-07-31 16:36:06 -06:00
libmodprobe libmodprobe: Fail when modules.dep lacks colon 2020-10-19 12:00:08 +01:00
libnetutils Add a libipchecksum that contains the C IP checksum code. 2020-07-09 16:35:47 +09:00
libpackagelistparser Add require_root to adbd_test and libpackagelistparser_test 2019-09-24 09:13:32 -07:00
libprocessgroup Make the connection between implementation and llndk_library explicit 2020-10-19 13:38:05 -07:00
libqtaguid Redirect qtaguid native call to netd fwmark client 2017-11-09 18:02:22 -08:00
libsparse Make libsparse vendor_available 2020-09-03 08:43:46 -07:00
libstats Use libcutils_headers for android_filesystem_config.h 2020-09-18 22:48:42 +00:00
libsuspend Remove libsuspend from VNDK. 2018-08-14 13:39:55 -07:00
libsync Make the connection between implementation and llndk_library explicit 2020-10-19 13:38:05 -07:00
libsystem Set min_sdk_version to be part of mainline modules 2020-05-13 08:18:06 +09:00
libsysutils SocketClient: don't ignore SIGPIPE 2020-07-31 15:53:18 -07:00
libusbhost Prevent infinite loop on zero length USB descriptors 2020-02-21 11:11:02 -08:00
libutils Remove unused utf8_length(). 2020-10-26 13:14:47 -07:00
libvndksupport Make the connection between implementation and llndk_library explicit 2020-10-19 13:38:05 -07:00
llkd llkd: Use more inclusive language 2020-06-19 06:51:59 -07:00
property_service Cleanup for #inclusivefixit. 2020-07-27 11:37:19 -07:00
qemu_pipe Use more inclusive language for #inclusivefixit 2020-07-28 00:22:59 +00:00
reboot adb: replace reboot service with exec of /system/bin/reboot. 2019-10-23 14:33:36 -07:00
rootdir init/service_parser: Add arguments window' and target' for `critical' 2020-10-26 11:38:01 +08:00
run-as Use libcutils_headers for android_filesystem_config.h 2020-09-18 22:48:42 +00:00
sdcard Move layout_version to /data/misc/installd 2019-08-21 10:12:18 -07:00
set-verity-state set-verity-state: Link to libfs_mgr_binder. 2019-12-30 13:42:57 -08:00
shell_and_utilities Use the "marketing names" for Q and R. 2020-10-21 16:36:14 -07:00
storaged storaged: ignore SIGPIPE 2020-03-17 09:31:01 -07:00
toolbox Merge "toolbox: make all janitors the owners." am: 5f33339b2f am: 459b5d6350 2020-07-13 18:10:13 +00:00
trusty Merge "rpmb_dev: Switch to RPMB provisioning scheme" 2020-10-10 05:06:56 +00:00
usbd Remove libhwbinder/libhidltransport deps 2019-09-05 14:17:42 -07:00
watchdogd Move watchdogd out of init 2018-08-02 12:25:58 -07:00
.clang-format Add a 2 width option of clang format. 2017-03-10 13:01:39 -08:00
.clang-format-2 Move clang-formats to build. 2019-01-18 14:26:33 -08:00
.clang-format-4 Move clang-formats to build. 2019-01-18 14:26:33 -08:00
.gitignore Ignore adb/*.pyc files 2015-08-11 12:59:58 -07:00
CleanSpec.mk snapshotctl don't auto-merge. 2020-03-03 13:19:49 -08:00
libbacktrace Remove libprocinfo, libbacktrace, libunwindstack 2020-10-16 15:46:24 +00:00
liblog Add symlinks to satisfy include paths. 2020-10-08 23:19:43 +00:00
libprocinfo Remove libprocinfo, libbacktrace, libunwindstack 2020-10-16 15:46:24 +00:00
libunwindstack Remove libprocinfo, libbacktrace, libunwindstack 2020-10-16 15:46:24 +00:00
METADATA Add METADATA to system/core: Apache2+BSD=NOTICE 2020-04-29 13:16:41 -07:00
MODULE_LICENSE_APACHE2
NOTICE
OWNERS Remove baligh@ from owners. CodeShuffle done. 2020-10-17 00:28:10 +00:00
PREUPLOAD.cfg Add AOSP preupload hook. 2020-04-23 11:02:00 -07:00
TEST_MAPPING Run liblog and logd CTS tests in presubmit 2020-07-29 08:02:52 -07:00