Files

Tao Bao b548bea778 minadbd: Return battery level via getprop.

`adb rescue getprop rescue.battery_level` returns the current battery
level.

Bug: 134560109
Test: Build and boot into rescue mode.
Test: `adb rescue getprop ro.build.fingerprint`
Test: `adb rescue getprop rescue.battery_level`
Test: `adb rescue getprop` to dump all the properties.
Test: Run recovery_unit_test.
Change-Id: I78a9e8ab9783ffc8532cb93e6a64fb2157c19bd5

2019-10-04 15:33:27 -07:00

include/minadbd

minadbd: Export minadbd/types.h to libinstall.

2019-09-26 00:04:11 -07:00

Android.bp

minadbd: Return battery level via getprop.

2019-10-04 15:33:27 -07:00

AndroidTest.xml

Add test config to minadbd_test

2017-03-28 22:13:38 -07:00

fuse_adb_provider_test.cpp

Create a FuseDataProvider base class

2019-03-19 11:11:58 -07:00

fuse_adb_provider.cpp

minadbd: Support rescue install and getprop commands.

2019-04-19 12:53:55 -07:00

fuse_adb_provider.h

Support starting fuse from a block map

2019-06-20 13:53:40 -07:00

minadbd_services_test.cpp

minadbd: Export minadbd/types.h to libinstall.

2019-09-26 00:04:11 -07:00

minadbd_services.cpp

minadbd: Return battery level via getprop.

2019-10-04 15:33:27 -07:00

minadbd_services.h

Add test for minadbd

2019-04-23 11:33:57 -07:00

minadbd.cpp

minadbd: Export minadbd/types.h to libinstall.

2019-09-26 00:04:11 -07:00

README.md

minadbd: Update README.md.

2019-09-27 13:17:16 -07:00

README.md

minadbd

minadbd is analogous to the regular adbd, but providing the minimal services to support recovery-specific use cases. Generally speaking, adbd = libadbd + libadbd_services, whereas minadbd = libadbd + libminadbd_services.

Although both modules may be installed into the recovery image, only one of them, or none, can be active at any given time.

The start / stop of adbd is managed via system property sys.usb.config, when setting to adb or none respectively. Upon starting recovery mode, adbd is started in debuggable builds by default; otherwise adbd will stay off at all times in user builds. See the triggers in bootable/recovery/etc/init.rc.
minadbd is started by recovery as needed.
- When requested to start minadbd, recovery stops adbd first, if it's running; it then forks and execs minadbd in a separate process.
- minadbd talks to host-side adb server to get user requests.
  - minadbd handles some requests directly, e.g. querying device properties for rescue service.
  - minadbd communicates with recovery to fulfill requests regarding package installation. See the comments in bootable/recovery/install/adb_install.cpp for the IPC protocol between recovery and minadbd.
- Upon exiting minadbd, recovery restarts adbd if it was previously running.