sd-bus: add new test for NameAcquired via proxy/dbus-daemon

This adds test-bus-proxy which should be used to test correct behavior of
systemd-bus-proxyd. The first test that was added is to verify we actually
receive NameAcquired signals for ourselves on bus-connect.

.gitignore

@@ -159,6 +159,7 @@
 /test-bus-match
 /test-bus-objects
 /test-bus-policy
+/test-bus-proxy
 /test-bus-server
 /test-bus-signature
 /test-bus-zero-copy

Makefile.am

@@ -2996,6 +2996,7 @@ tests += \
 	test-bus-cleanup \
 	test-bus-server \
 	test-bus-match \
+	test-bus-proxy \
 	test-bus-kernel \
 	test-bus-kernel-bloom \
 	test-bus-zero-copy \
@@ -3088,6 +3089,12 @@ test_bus_match_SOURCES = \
 test_bus_match_LDADD = \
 	libshared.la
 
+test_bus_proxy_SOURCES = \
+	src/libsystemd/sd-bus/test-bus-proxy.c
+
+test_bus_proxy_LDADD = \
+	libshared.la
+
 test_bus_kernel_SOURCES = \
 	src/libsystemd/sd-bus/test-bus-kernel.c
 

src/libsystemd/sd-bus/test-bus-proxy.c

@@ -0,0 +1,109 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+  This file is part of systemd.
+
+  Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+
+#include "util.h"
+#include "log.h"
+
+#include "sd-bus.h"
+#include "bus-kernel.h"
+#include "bus-util.h"
+#include "bus-dump.h"
+
+typedef struct {
+        const char *sender;
+        int matched_acquired;
+} TestProxyMatch;
+
+static int test_proxy_acquired(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        TestProxyMatch *match = userdata;
+        const char *name;
+        int r;
+
+        r = sd_bus_message_read(m, "s", &name);
+        assert_se(r >= 0);
+
+        if (!streq_ptr(match->sender, name))
+                return 0;
+
+        ++match->matched_acquired;
+        return 1;
+}
+
+static void test_proxy_matched(void) {
+        _cleanup_bus_flush_close_unref_ sd_bus *a = NULL;
+        TestProxyMatch match = {};
+        int r;
+
+        /* open bus 'a' */
+
+        r = sd_bus_new(&a);
+        assert_se(r >= 0);
+
+        r = sd_bus_set_address(a, "unix:path=/var/run/dbus/system_bus_socket");
+        assert_se(r >= 0);
+
+        r = sd_bus_set_bus_client(a, true);
+        assert_se(r >= 0);
+
+        r = sd_bus_start(a);
+        assert_se(r >= 0);
+
+        r = sd_bus_add_match(a, NULL,
+                             "type='signal',"
+                             "member='NameAcquired'",
+                             test_proxy_acquired, &match);
+        assert_se(r >= 0);
+
+        r = sd_bus_get_unique_name(a, &match.sender);
+        assert_se(r >= 0);
+
+        /* barrier to guarantee proxy/dbus-daemon handled the previous data  */
+        r = sd_bus_call_method(a,
+                               "org.freedesktop.DBus",
+                               "/org/freedesktop/DBus",
+                               "org.freedesktop.DBus",
+                               "GetId",
+                               NULL, NULL, NULL);
+        assert_se(r >= 0);
+
+        /* now we can be sure the Name* signals were sent */
+        do {
+                r = sd_bus_process(a, NULL);
+        } while (r > 0);
+        assert_se(r == 0);
+
+        assert_se(match.matched_acquired == 1);
+}
+
+int main(int argc, char **argv) {
+        if (access("/var/run/dbus/system_bus_socket", F_OK) < 0)
+                return EXIT_TEST_SKIP;
+
+        log_parse_environment();
+
+        test_proxy_matched();
+
+        return EXIT_SUCCESS;
+}