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

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU Lesser General Public License as published by
  10   the Free Software Foundation; either version 2.1 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   Lesser General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <errno.h>
  23 #include <fcntl.h>
  24 #include <stdlib.h>
  25
  26 #include "sd-bus.h"
  27
  28 #include "bus-dump.h"
  29 #include "bus-kernel.h"
  30 #include "bus-util.h"
  31 #include "log.h"
  32 #include "util.h"
  33
  34 typedef struct {
  35         const char *sender;
  36         int matched_acquired;
  37 } TestProxyMatch;
  38
  39 static int test_proxy_acquired(sd_bus_message *m, void *userdata, sd_bus_error *error) {
  40         TestProxyMatch *match = userdata;
  41         const char *name;
  42         int r;
  43
  44         r = sd_bus_message_read(m, "s", &name);
  45         assert_se(r >= 0);
  46
  47         if (!streq_ptr(match->sender, name))
  48                 return 0;
  49
  50         ++match->matched_acquired;
  51         return 1;
  52 }
  53
  54 static void test_proxy_matched(void) {
  55         _cleanup_bus_flush_close_unref_ sd_bus *a = NULL;
  56         _cleanup_free_ char *matchstr = NULL;
  57         TestProxyMatch match = {};
  58         const char *me;
  59         int r;
  60
  61         /* open bus 'a' */
  62
  63         r = sd_bus_new(&a);
  64         assert_se(r >= 0);
  65
  66         r = sd_bus_set_address(a, "unix:path=/var/run/dbus/system_bus_socket");
  67         assert_se(r >= 0);
  68
  69         r = sd_bus_set_bus_client(a, true);
  70         assert_se(r >= 0);
  71
  72         r = sd_bus_start(a);
  73         assert_se(r >= 0);
  74
  75         r = sd_bus_get_unique_name(a, &me);
  76         assert_se(r >= 0);
  77
  78         matchstr = strjoin("type='signal',"
  79                            "member='NameAcquired',"
  80                            "destination='",
  81                            me,
  82                            "'",
  83                            NULL);
  84         assert_se(matchstr);
  85         r = sd_bus_add_match(a, NULL, matchstr, test_proxy_acquired, &match);
  86         assert_se(r >= 0);
  87
  88         r = sd_bus_get_unique_name(a, &match.sender);
  89         assert_se(r >= 0);
  90
  91         /* barrier to guarantee proxy/dbus-daemon handled the previous data  */
  92         r = sd_bus_call_method(a,
  93                                "org.freedesktop.DBus",
  94                                "/org/freedesktop/DBus",
  95                                "org.freedesktop.DBus",
  96                                "GetId",
  97                                NULL, NULL, NULL);
  98         assert_se(r >= 0);
  99
 100         /* now we can be sure the Name* signals were sent */
 101         do {
 102                 r = sd_bus_process(a, NULL);
 103         } while (r > 0);
 104         assert_se(r == 0);
 105
 106         assert_se(match.matched_acquired == 1);
 107 }
 108
 109 int main(int argc, char **argv) {
 110         if (access("/var/run/dbus/system_bus_socket", F_OK) < 0)
 111                 return EXIT_TEST_SKIP;
 112
 113         log_parse_environment();
 114
 115         test_proxy_matched();
 116
 117         return EXIT_SUCCESS;
 118 }