#13795: Initial commit for sflphone-android

includes: libexpat libyaml libdbus-c++ commoncpp ccrtp
          libdbus (from android-4.0.4 sources)

TODO:
- git ignores "/jni/sflphone", sflphone repo should be cloned.
- sflphone-android only needs daemon directory. Ideally it should be possible
to clone it without cloning the whole sflphone project.
into sfl-android (commit 6a0fa7a "#13961: Fix cipher handling" has been used here)
- add pjsip-android project as a git submodule
- sflphone-android needs pjsip android project. Ideally daemon git repository
should not embed pjsip. Instead pjsip should be clone from official repositories.

Considering this, structure should have three distincts git repos:

sflphone-android/.git
sflphone-android/jni/ccrtp-1.8.0-android
sflphone-android/jni/commoncpp2-1.8.1-android
sflphone-android/jni/dbus
sflphone-android/jni/libdbus-c++-0.9.0-android
sflphone-android/jni/libexpat
sflphone-android/jni/libyaml

sflphone-android/jni/sflphone-daemon/.git
sflphone-android/jni/sflphone-daemon/src/audio
sflphone-android/jni/sflphone-daemon/src/config
sflphone-android/jni/sflphone-daemon/src/dbus
sflphone-android/jni/sflphone-daemon/src/history
sflphone-android/jni/sflphone-daemon/src/hooks
sflphone-android/jni/sflphone-daemon/src/iax
sflphone-android/jni/sflphone-daemon/src/sip
sflphone-android/jni/sflphone-daemon/src/video

sflphone-android/jni/pjsip-android/.git

Signed-off-by: Emeric Vigier <emeric.vigier@savoirfairelinux.com>
diff --git a/jni/dbus/cmake/bus/system.conf.cmake b/jni/dbus/cmake/bus/system.conf.cmake
new file mode 100644
index 0000000..ee85ecc
--- /dev/null
+++ b/jni/dbus/cmake/bus/system.conf.cmake
@@ -0,0 +1,62 @@
+<!-- This configuration file controls the systemwide message bus.
+     Add a system-local.conf and edit that rather than changing this 
+     file directly. -->
+
+<!-- Note that there are any number of ways you can hose yourself
+     security-wise by screwing up this file; in particular, you
+     probably don't want to listen on any more addresses, add any more
+     auth mechanisms, run as a different user, etc. -->
+
+<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
+ "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
+<busconfig>
+
+  <!-- Our well-known bus type, do not change this -->
+  <type>system</type>
+
+  <!-- Run as special user -->
+  <user>@DBUS_USER@</user>
+
+  <!-- Fork into daemon mode -->
+  <fork/>
+
+  <!-- Write a pid file -->
+  <pidfile>@DBUS_SYSTEM_PID_FILE@</pidfile>
+
+  <!-- Only allow socket-credentials-based authentication -->
+  <auth>EXTERNAL</auth>
+
+  <!-- Only listen on a local socket. (abstract=/path/to/socket 
+       means use abstract namespace, don't really create filesystem 
+       file; only Linux supports this. Use path=/whatever on other 
+       systems.) -->
+  <listen>@DBUS_SYSTEM_BUS_DEFAULT_ADDRESS@</listen>
+
+  <policy context="default">
+    <!-- Deny everything then punch holes -->
+    <deny send_interface="*"/>
+    <deny receive_interface="*"/>
+    <deny own="*"/>
+    <!-- But allow all users to connect -->
+    <allow user="*"/>
+    <!-- Allow anyone to talk to the message bus -->
+    <!-- FIXME I think currently these allow rules are always implicit 
+         even if they aren't in here -->
+    <allow send_destination="org.freedesktop.DBus"/>
+    <allow receive_sender="org.freedesktop.DBus"/>
+    <!-- valid replies are always allowed -->
+    <allow send_requested_reply="true"/>
+    <allow receive_requested_reply="true"/>
+  </policy>
+
+  <!-- Config files are placed here that among other things, punch 
+       holes in the above policy for specific services. -->
+  <includedir>system.d</includedir>
+
+  <!-- This is included last so local configuration can override what's 
+       in this standard file -->
+  <include ignore_missing="yes">system-local.conf</include>
+
+  <include if_selinux_enabled="yes" selinux_root_relative="yes">contexts/dbus_contexts</include>
+
+</busconfig>