dlt-daemon: create sockets using "android way"

* Before this commit, dlt-daemon sockets were created inside
/data/local/tmp. This works but have many drawbacks:
    - /data/local/tmp isn't always a tmpfs depending of the android
    system you have. Means sockets are potentially created on a
    filesystem which binds to a real device
    - as the sockets are created by the dlt-daemon itself, this
    prevent the usage of specific SELinux labels / contexts as
    they will inherit the label / context from its parent
    location (e.g the ones from /data/local/tmp). This prevent a
    fine control of the SELinux label / context that you would like
    to apply on them

* This commit adapts the dlt-daemon in such way: 
    - application and control sockets are now created inside
    /dev/socket which is the standard path for sockets on android
    - these sockets are now created by init (see dlt-daemon.rc) and
    their fds are recovered by dlt-daemon through a specific android
    API (dlt_daemon_unix_android_get_socket). If the fds can't be
    recovered, we fallback to the previous mechanism by creating
    by ourself the sockets (even if this will prevent SELinux
    label / context on this socket)
    - all these modifications have been put under compilation flag
    for android

Signed-off-by: Sebastien RAILLET <sebastien.raillet@marelli.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/Android.bp b/Android.bp
index 996ae85..96cd73d 100644
--- a/Android.bp
+++ b/Android.bp
@@ -29,7 +29,7 @@ cc_defaults {
         "-DDLT_DAEMON_USE_UNIX_SOCKET_IPC",
         "-DDLT_LIB_USE_UNIX_SOCKET_IPC",
         "-DCONFIGURATION_FILES_DIR=\"/vendor/etc\"",
-        "-DDLT_USER_IPC_PATH=\"/data/local/tmp\"",
+        "-DDLT_USER_IPC_PATH=\"/dev/socket\"",
     ] + [
         "-Wno-unused-parameter",
         "-W",