dbus: Install an apropriate session bus configuration for geoclue-hybris...

dbus: Install an apropriate session bus configuration for geoclue-hybris (which has a setuid bit and owns a session service as root)

recipes-core/dbus/dbus/0001-dbus-sysdeps-Don-t-check-suid-bit-before-accessing-e.patch

+From 23c5bf0d1aeb6c65097dcf7b3685c3137f858e23 Mon Sep 17 00:00:00 2001
+From: Florent Revest <revestflo@gmail.com>
+Date: Thu, 21 Sep 2017 23:23:59 +0200
+Subject: [PATCH] dbus-sysdeps: Don't check suid bit before accessing env vars
+
+---
+ dbus/dbus-sysdeps.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/dbus/dbus-sysdeps.c b/dbus/dbus-sysdeps.c
+index 8b986d5..348acbd 100644
+--- a/dbus/dbus-sysdeps.c
++++ b/dbus/dbus-sysdeps.c
+@@ -187,8 +187,8 @@ _dbus_getenv (const char *varname)
+   /* Don't respect any environment variables if the current process is
+    * setuid.  This is the equivalent of glibc's __secure_getenv().
+    */
+-  if (_dbus_check_setuid ())
+-    return NULL;
++//  if (_dbus_check_setuid ())
++//    return NULL;
+   return getenv (varname);
+ }
+ 
+-- 
+2.7.4
+

recipes-core/dbus/dbus/session-local.conf

+<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-Bus Bus Configuration 1.0//EN"
+ "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
+<busconfig>
+  <policy context="default">
+    <allow user="root"/>
+  </policy>
+</busconfig>

recipes-core/dbus/dbus_1.10.14.bbappend

+FILESEXTRAPATHS_prepend := "${THISDIR}/dbus:"
+SRC_URI += "file://0001-dbus-sysdeps-Don-t-check-suid-bit-before-accessing-e.patch
+            file://session-local.conf"
+
+do_install_append() {
+    cp ${WORKDIR}/session-local.conf ${D}/usr/share/dbus-1/session.d/session-local.conf
+}