aboutsummaryrefslogtreecommitdiff
path: root/src/main.c
blob: 72fa6dc412a8ceaad1291a22ea131b66d58a6918 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details:
 *
 * Copyright (C) 2008 - 2009 Novell, Inc.
 * Copyright (C) 2009 - 2010 Red Hat, Inc.
 */

#include <config.h>
#include <signal.h>
#include <syslog.h>
#include <string.h>
#include <unistd.h>
#include <dbus/dbus-glib.h>
#include <dbus/dbus-glib-lowlevel.h>
#include "mm-manager.h"
#include "mm-options.h"

#if !defined(MM_DIST_VERSION)
# define MM_DIST_VERSION VERSION
#endif

static GMainLoop *loop = NULL;

static void
mm_signal_handler (int signo)
{
    if (signo == SIGUSR1)
        mm_options_set_debug (!mm_options_debug ());
	else if (signo == SIGINT || signo == SIGTERM) {
		g_message ("Caught signal %d, shutting down...", signo);
        if (loop)
            g_main_loop_quit (loop);
        else
            _exit (0);
    }
}

static void
setup_signals (void)
{
    struct sigaction action;
    sigset_t mask;

    sigemptyset (&mask);
    action.sa_handler = mm_signal_handler;
    action.sa_mask = mask;
    action.sa_flags = 0;
    sigaction (SIGUSR1, &action, NULL);
    sigaction (SIGTERM, &action, NULL);
    sigaction (SIGINT, &action, NULL);
}

static void
log_handler (const gchar *log_domain,
             GLogLevelFlags log_level,
             const gchar *message,
             gpointer ignored)
{
    int syslog_priority;    

    switch (log_level) {
    case G_LOG_LEVEL_ERROR:
        syslog_priority = LOG_CRIT;
        break;

    case G_LOG_LEVEL_CRITICAL:
        syslog_priority = LOG_ERR;
        break;

    case G_LOG_LEVEL_WARNING:
        syslog_priority = LOG_WARNING;
        break;

    case G_LOG_LEVEL_MESSAGE:
        syslog_priority = LOG_NOTICE;
        break;

    case G_LOG_LEVEL_DEBUG:
        syslog_priority = LOG_DEBUG;
        break;

    case G_LOG_LEVEL_INFO:
    default:
        syslog_priority = LOG_INFO;
        break;
    }

    syslog (syslog_priority, "%s", message);
}


static void
logging_setup (void)
{
    openlog (G_LOG_DOMAIN, LOG_CONS, LOG_DAEMON);
    g_log_set_handler (G_LOG_DOMAIN, 
                       G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION,
                       log_handler,
                       NULL);
}

static void
logging_shutdown (void)
{
    closelog ();
}

static void
destroy_cb (DBusGProxy *proxy, gpointer user_data)
{
    g_message ("disconnected from the system bus, exiting.");
    g_main_loop_quit (loop);
}

static DBusGProxy *
create_dbus_proxy (DBusGConnection *bus)
{
    DBusGProxy *proxy;
    GError *err = NULL;
    int request_name_result;

    proxy = dbus_g_proxy_new_for_name (bus,
                                       "org.freedesktop.DBus",
                                       "/org/freedesktop/DBus",
                                       "org.freedesktop.DBus");

    if (!dbus_g_proxy_call (proxy, "RequestName", &err,
                            G_TYPE_STRING, MM_DBUS_SERVICE,
                            G_TYPE_UINT, DBUS_NAME_FLAG_DO_NOT_QUEUE,
                            G_TYPE_INVALID,
                            G_TYPE_UINT, &request_name_result,
                            G_TYPE_INVALID)) {
        g_warning ("Could not acquire the %s service.\n"
                   "  Message: '%s'", MM_DBUS_SERVICE, err->message);

        g_error_free (err);
        g_object_unref (proxy);
        proxy = NULL;
    } else if (request_name_result != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
        g_warning ("Could not acquire the " MM_DBUS_SERVICE
                   " service as it is already taken. Return: %d",
                   request_name_result);

        g_object_unref (proxy);
        proxy = NULL;
    } else {
        dbus_g_proxy_add_signal (proxy, "NameOwnerChanged",
                                 G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
                                 G_TYPE_INVALID);
    }

    return proxy;
}

static gboolean
start_manager (gpointer user_data)
{
    mm_manager_start (MM_MANAGER (user_data));
    return FALSE;
}

int
main (int argc, char *argv[])
{
    DBusGConnection *bus;
    DBusGProxy *proxy;
    MMManager *manager;
    GError *err = NULL;
    guint id;

    mm_options_parse (argc, argv);
    g_type_init ();

    setup_signals ();

    if (!mm_options_debug ())
        logging_setup ();

    g_message ("ModemManager (version " MM_DIST_VERSION ") starting...");

    bus = dbus_g_bus_get (DBUS_BUS_SYSTEM, &err);
    if (!bus) {
        g_warning ("Could not get the system bus. Make sure "
                   "the message bus daemon is running! Message: %s",
                   err->message);
        g_error_free (err);
        return -1;
    }

    proxy = create_dbus_proxy (bus);
    if (!proxy)
        return -1;

    manager = mm_manager_new (bus);
    g_idle_add (start_manager, manager);

    loop = g_main_loop_new (NULL, FALSE);
    id = g_signal_connect (proxy, "destroy", G_CALLBACK (destroy_cb), loop);

    g_main_loop_run (loop);

    g_signal_handler_disconnect (proxy, id);

    mm_manager_shutdown (manager);

    /* Wait for all modems to be removed */
    while (mm_manager_num_modems (manager)) {
        GMainContext *ctx = g_main_loop_get_context (loop);

        g_main_context_iteration (ctx, FALSE);
        g_usleep (50);
    }

    g_object_unref (manager);
    g_object_unref (proxy);
    dbus_g_connection_unref (bus);    

    logging_shutdown ();

    return 0;
}