DO NOT MERGE Fix for Bluetooth connection being dropped after HCI Read Encryption Key Size

If remote device stop the encryption before we call "Read Encryption Key Size",
we might receive Insufficient Security, which means that link is no longer
encrypted.

In such cases we should stay connected, rather than disconnecting the
link.

Test: Connect to device that stop encryption right after encryption is
complete, i.e. to change roles.
Bug: 124301137
Bug: 132626699

Change-Id: Iab0fd9f357d18a6b048b971d0393fbb47fd4d793
Merged-In: Iab0fd9f357d18a6b048b971d0393fbb47fd4d793
(cherry picked from commit c978f86b506f31567b5991c91cdbe4c142ca8edd)
1 file changed
tree: eb3b23362f1b50e5d152e15b8a7ac09d66fc85d6
  1. .clang-format
  2. .gitignore
  3. .gn
  4. Android.bp
  5. Android.mk
  6. BUILD.gn
  7. CleanSpec.mk
  8. EventLogTags.logtags
  9. MODULE_LICENSE_APACHE2
  10. NOTICE
  11. OWNERS
  12. PREUPLOAD.cfg
  13. README.md
  14. audio_a2dp_hw/
  15. audio_hearing_aid_hw/
  16. binder/
  17. bta/
  18. btcore/
  19. btif/
  20. build/
  21. conf/
  22. device/
  23. doc/
  24. embdrv/
  25. hci/
  26. include/
  27. internal_include/
  28. main/
  29. osi/
  30. packet/
  31. profile/
  32. proto/
  33. service/
  34. stack/
  35. test/
  36. tools/
  37. types/
  38. udrv/
  39. utils/
  40. vendor_libs/
  41. vnd/
README.md

Fluoride Bluetooth stack

Building and running on AOSP

Just build AOSP - Fluoride is there by default.

Building and running on Linux

Instructions for Ubuntu, tested on 14.04 with Clang 3.5.0 and 16.10 with Clang 3.8.0

Download source

mkdir ~/fluoride
cd ~/fluoride
git clone https://android.googlesource.com/platform/system/bt

Install dependencies (require sudo access):

cd ~/fluoride/bt
build/install_deps.sh

Then fetch third party dependencies:

cd ~/fluoride/bt
mkdir third_party
cd third_party
git clone https://github.com/google/googletest.git
git clone https://android.googlesource.com/platform/external/aac
git clone https://android.googlesource.com/platform/external/libchrome
git clone https://android.googlesource.com/platform/external/libldac
git clone https://android.googlesource.com/platform/external/modp_b64
git clone https://android.googlesource.com/platform/external/tinyxml2

And third party dependencies of third party dependencies:

cd fluoride/bt/third_party/libchrome/base/third_party
mkdir valgrind
cd valgrind
curl https://chromium.googlesource.com/chromium/src/base/+/master/third_party/valgrind/valgrind.h?format=TEXT | base64 -d > valgrind.h
curl https://chromium.googlesource.com/chromium/src/base/+/master/third_party/valgrind/memcheck.h?format=TEXT | base64 -d > memcheck.h

NOTE: If system/bt is checked out under AOSP, then create symbolic links instead of downloading sources

cd system/bt
mkdir third_party
cd third_party
ln -s ../../../external/aac aac
ln -s ../../../external/libchrome libchrome
ln -s ../../../external/libldac libldac
ln -s ../../../external/modp_b64 modp_b64
ln -s ../../../external/tinyxml2 tinyxml2
ln -s ../../../external/googletest googletest

Generate your build files

cd ~/fluoride/bt
gn gen out/Default

Build

cd ~/fluoride/bt
ninja -C out/Default all

This will build all targets (the shared library, executables, tests, etc) and put them in out/Default. To build an individual target, replace “all” with the target of your choice, e.g. ninja -C out/Default net_test_osi.

Run

cd ~/fluoride/bt/out/Default
LD_LIBRARY_PATH=./ ./bluetoothtbd -create-ipc-socket=fluoride

Eclipse IDE Support

  1. Follows the Chromium project Eclipse Setup Instructions until “Optional: Building inside Eclipse” section (don't do that section, we will set it up differently)

  2. Generate Eclipse settings:

cd system/bt
gn gen --ide=eclipse out/Default
  1. In Eclipse, do File->Import->C/C++->C/C++ Project Settings, choose the XML location under system/bt/out/Default

  2. Right click on the project. Go to Preferences->C/C++ Build->Builder Settings. Uncheck “Use default build command”, but instead using “ninja -C out/Default”

  3. Goto Behaviour tab, change clean command to “-t clean”