From c5526c18ad4dbf706e12ae46c5b8b26efa17e52c Mon Sep 17 00:00:00 2001
From: Colin Walters <walters@verbum.org>
Date: Thu, 4 Dec 2008 14:27:21 -0500
Subject: Infrastructure for testing a "system like" bus in test suite

The tmp-session-like-system.conf bus configuration has a security
policy intended to mirror that of the system bus.  This allows
testing policy rules.
---
 test/name-test/Makefile.am                  |  2 +-
 test/name-test/run-test-systemserver.sh     | 41 +++++++++++++++
 test/name-test/tmp-session-like-system.conf | 79 +++++++++++++++++++++++++++++
 tools/run-with-tmp-session-bus.sh           |  5 +-
 4 files changed, 125 insertions(+), 2 deletions(-)
 create mode 100755 test/name-test/run-test-systemserver.sh
 create mode 100644 test/name-test/tmp-session-like-system.conf

diff --git a/test/name-test/Makefile.am b/test/name-test/Makefile.am
index 17e05bec..fee1e606 100644
--- a/test/name-test/Makefile.am
+++ b/test/name-test/Makefile.am
@@ -5,7 +5,7 @@ INCLUDES=-I$(top_srcdir) $(DBUS_CLIENT_CFLAGS) $(DBUS_GLIB_CFLAGS) $(DBUS_TEST_C
 ## TESTS
 if DBUS_BUILD_TESTS
 TESTS_ENVIRONMENT=DBUS_TOP_BUILDDIR=@abs_top_builddir@ DBUS_TOP_SRCDIR=@abs_top_srcdir@
-TESTS=run-test.sh
+TESTS=run-test.sh run-test-systemserver.sh
 else
 TESTS=
 endif
diff --git a/test/name-test/run-test-systemserver.sh b/test/name-test/run-test-systemserver.sh
new file mode 100755
index 00000000..fd82326c
--- /dev/null
+++ b/test/name-test/run-test-systemserver.sh
@@ -0,0 +1,41 @@
+#! /bin/sh
+die()
+{
+    if ! test -z "$DBUS_SESSION_BUS_PID" ; then
+        echo "killing message bus "$DBUS_SESSION_BUS_PID >&2
+        kill -9 $DBUS_SESSION_BUS_PID
+    fi
+    echo $SCRIPTNAME: $* >&2
+
+    exit 1
+}
+
+SCRIPTNAME=$0
+MODE=$1
+
+## so the tests can complain if you fail to use the script to launch them
+DBUS_TEST_NAME_RUN_TEST_SCRIPT=1
+export DBUS_TEST_NAME_RUN_TEST_SCRIPT
+
+SOURCE_CONFIG_FILE=$DBUS_TOP_SRCDIR/test/name-test/tmp-session-like-system.conf
+export SOURCE_CONFIG_FILE
+# Rerun ourselves with tmp session bus if we're not already
+if test -z "$DBUS_TEST_NAME_IN_SYS_RUN_TEST"; then
+  DBUS_TEST_NAME_IN_SYS_RUN_TEST=1
+  export DBUS_TEST_NAME_IN_SYS_RUN_TEST
+  exec $DBUS_TOP_SRCDIR/tools/run-with-tmp-session-bus.sh $SCRIPTNAME $MODE
+fi 
+
+if test -n "$DBUS_TEST_MONITOR"; then
+  dbus-monitor --session &
+fi
+
+echo "running test-expected-echo-fail"
+${DBUS_TOP_BUILDDIR}/libtool --mode=execute $DEBUG $DBUS_TOP_BUILDDIR/tools/dbus-send --print-reply --dest=org.freedesktop.DBus.TestSuiteEchoService /org/freedesktop/TestSuite org.freedesktop.TestSuite.Echo string:hi >echo-error-output.tmp 2>&1
+if ! grep -q 'DBus.Error' echo-error-output.tmp; then
+  echo "Didn't get expected failure; output was:"
+  echo "====="
+  cat echo-error-output.tmp
+  echo "====="
+  exit 1
+fi
diff --git a/test/name-test/tmp-session-like-system.conf b/test/name-test/tmp-session-like-system.conf
new file mode 100644
index 00000000..e483c89b
--- /dev/null
+++ b/test/name-test/tmp-session-like-system.conf
@@ -0,0 +1,79 @@
+<!-- This configuration file controls the per-user-login-session message bus.
+     Add a session-local.conf and edit that rather than changing this 
+     file directly. -->
+
+<!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, don't change this -->
+  <type>session</type>
+
+  <!-- If we fork, keep the user's original umask to avoid affecting
+       the behavior of child processes. -->
+  <keep_umask/>
+
+  <listen>unix:tmpdir=/tmp</listen>
+
+  <standard_session_servicedirs />
+
+  <!-- intended to match system bus -->
+  <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 eallow 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" send_type="method_return"/>
+    <allow send_requested_reply="true" send_type="error"/>
+    <allow receive_requested_reply="true"/>
+    <!-- disallow changing the activation environment of system services -->
+    <deny send_destination="org.freedesktop.DBus"
+          send_interface="org.freedesktop.DBus"
+          send_member="UpdateActivationEnvironment"/>
+  </policy>
+
+  <policy context="default">
+     <allow own="org.freedesktop.DBus.TestSuiteEchoService"/>
+  </policy>
+
+  <!-- Config files are placed here that among other things, 
+       further restrict the above policy for specific services. -->
+  <includedir>session.d</includedir>
+
+  <!-- This is included last so local configuration can override what's 
+       in this standard file -->
+  <include ignore_missing="yes">session-local.conf</include>
+
+  <include if_selinux_enabled="yes" selinux_root_relative="yes">contexts/dbus_contexts</include>
+
+  <!-- For the session bus, override the default relatively-low limits 
+       with essentially infinite limits, since the bus is just running 
+       as the user anyway, using up bus resources is not something we need 
+       to worry about. In some cases, we do set the limits lower than 
+       "all available memory" if exceeding the limit is almost certainly a bug, 
+       having the bus enforce a limit is nicer than a huge memory leak. But the 
+       intent is that these limits should never be hit. -->
+
+  <!-- the memory limits are 1G instead of say 4G because they can't exceed 32-bit signed int max -->
+  <limit name="max_incoming_bytes">1000000000</limit>
+  <limit name="max_outgoing_bytes">1000000000</limit>
+  <limit name="max_message_size">1000000000</limit>
+  <limit name="service_start_timeout">120000</limit>  
+  <limit name="auth_timeout">240000</limit>
+  <limit name="max_completed_connections">100000</limit>  
+  <limit name="max_incomplete_connections">10000</limit>
+  <limit name="max_connections_per_user">100000</limit>
+  <limit name="max_pending_service_starts">10000</limit>
+  <limit name="max_names_per_connection">50000</limit>
+  <limit name="max_match_rules_per_connection">50000</limit>
+  <limit name="max_replies_per_connection">50000</limit>
+  <limit name="reply_timeout">300000</limit>
+
+</busconfig>
diff --git a/tools/run-with-tmp-session-bus.sh b/tools/run-with-tmp-session-bus.sh
index f95ee62e..982184a2 100755
--- a/tools/run-with-tmp-session-bus.sh
+++ b/tools/run-with-tmp-session-bus.sh
@@ -26,8 +26,11 @@ SERVICE_DIR="$DBUS_TOP_BUILDDIR/test/data/valid-service-files"
 ESCAPED_SERVICE_DIR=`echo $SERVICE_DIR | sed -e 's/\//\\\\\\//g'`
 echo "escaped service dir is: $ESCAPED_SERVICE_DIR" >&2
 
+if test -z "$SOURCE_CONFIG_FILE"; then
+    SOURCE_CONFIG_FILE="$DBUS_TOP_BUILDDIR/bus/session.conf";
+fi
 ## create a configuration file based on the standard session.conf
-cat $DBUS_TOP_BUILDDIR/bus/session.conf |  \
+cat $SOURCE_CONFIG_FILE |  \
     sed -e 's/<standard_session_servicedirs.*$/<servicedir>'$ESCAPED_SERVICE_DIR'<\/servicedir>/g' |  \
     sed -e 's/<include.*$//g'                \
   > $CONFIG_FILE
-- 
cgit