From 951fd317ca02230fce81f0aa78589636beac8ae7 Mon Sep 17 00:00:00 2001
From: Simon McVittie <simon.mcvittie@collabora.co.uk>
Date: Fri, 1 Jul 2016 13:07:49 +0100
Subject: [PATCH] dbus-daemon test: exercise maximum match rules per connection

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=86442
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
---
 test/Makefile.am                              |  1 +
 .../max-match-rules-per-connection.conf.in    | 18 ++++++++++
 test/dbus-daemon.c                            | 35 +++++++++++++++++++
 3 files changed, 54 insertions(+)
 create mode 100644 test/data/valid-config-files/max-match-rules-per-connection.conf.in

diff --git a/test/Makefile.am b/test/Makefile.am
index 602436f7a..924fd532f 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -349,6 +349,7 @@ in_data = \
 	data/valid-config-files/incoming-limit.conf.in \
 	data/valid-config-files/max-completed-connections.conf.in \
 	data/valid-config-files/max-connections-per-user.conf.in \
+	data/valid-config-files/max-match-rules-per-connection.conf.in \
 	data/valid-config-files/max-replies-per-connection.conf.in \
 	data/valid-config-files/multi-user.conf.in \
 	data/valid-config-files/systemd-activation.conf.in \
diff --git a/test/data/valid-config-files/max-match-rules-per-connection.conf.in b/test/data/valid-config-files/max-match-rules-per-connection.conf.in
new file mode 100644
index 000000000..27d27b639
--- /dev/null
+++ b/test/data/valid-config-files/max-match-rules-per-connection.conf.in
@@ -0,0 +1,18 @@
+<!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>
+  <listen>@TEST_LISTEN@</listen>
+
+  <policy context="default">
+    <!-- Allow everything to be sent -->
+    <allow send_destination="*" eavesdrop="true"/>
+    <!-- Allow everything to be received -->
+    <allow eavesdrop="true"/>
+    <!-- Allow anyone to own anything -->
+    <allow own="*"/>
+  </policy>
+
+  <limit name="max_match_rules_per_connection">3</limit>
+</busconfig>
diff --git a/test/dbus-daemon.c b/test/dbus-daemon.c
index 58f814104..9fdfe773a 100644
--- a/test/dbus-daemon.c
+++ b/test/dbus-daemon.c
@@ -847,6 +847,33 @@ test_max_replies_per_connection (Fixture *f,
   g_queue_clear (&errors);
 }
 
+static void
+test_max_match_rules_per_connection (Fixture *f,
+    gconstpointer context)
+{
+  DBusError error = DBUS_ERROR_INIT;
+
+  if (f->skip)
+    return;
+
+  dbus_bus_add_match (f->left_conn, "sender='com.example.C1'", &error);
+  test_assert_no_error (&error);
+  dbus_bus_add_match (f->left_conn, "sender='com.example.C2'", &error);
+  test_assert_no_error (&error);
+  dbus_bus_add_match (f->left_conn, "sender='com.example.C3'", &error);
+  test_assert_no_error (&error);
+
+  dbus_bus_add_match (f->left_conn, "sender='com.example.C4'", &error);
+  g_assert_cmpstr (error.name, ==, DBUS_ERROR_LIMITS_EXCEEDED);
+  dbus_error_free (&error);
+
+  dbus_bus_remove_match (f->left_conn, "sender='com.example.C3'", &error);
+  test_assert_no_error (&error);
+
+  dbus_bus_add_match (f->left_conn, "sender='com.example.C4'", &error);
+  test_assert_no_error (&error);
+}
+
 static void
 teardown (Fixture *f,
     gconstpointer context G_GNUC_UNUSED)
@@ -946,6 +973,11 @@ static Config max_replies_per_connection_config = {
     SPECIFY_ADDRESS
 };
 
+static Config max_match_rules_per_connection_config = {
+    NULL, 1, "valid-config-files/max-match-rules-per-connection.conf",
+    SPECIFY_ADDRESS
+};
+
 int
 main (int argc,
     char **argv)
@@ -972,6 +1004,9 @@ main (int argc,
   g_test_add ("/limits/max-replies-per-connection", Fixture,
       &max_replies_per_connection_config,
       setup, test_max_replies_per_connection, teardown);
+  g_test_add ("/limits/max-match-rules-per-connection", Fixture,
+      &max_match_rules_per_connection_config,
+      setup, test_max_match_rules_per_connection, teardown);
 #ifdef DBUS_UNIX
   /* We can't test this in loopback.c with the rest of unix:runtime=yes,
    * because dbus_bus_get[_private] is the only way to use the default,
-- 
2.47.3