modem: new property to allow specifying longer timeouts when configuring IP

This IpTimeout property will be read by NetworkManager, and used as the time to
wait for pppd to establish the IP configuration.

introspection/org.freedesktop.ModemManager.Modem.xml

@@ -195,6 +195,12 @@
       </tp:docstring>
     </property>
 
+    <property name="IpTimeout" type="u" access="read">
+      <tp:docstring>
+        Maximum time to wait for a successful IP establishment, when PPP is used.
+      </tp:docstring>
+    </property>
+
     <!-- Enabled should be folded into this. -->
     <property name="State" type="u" access="read" tp:type="MM_MODEM_STATE">
       <tp:docstring>

src/mm-modem-base.c

@@ -60,6 +60,7 @@ typedef struct {
     guint32 unlock_retries;
     GArray *pin_retry_counts;
     guint32 ip_method;
+    guint32 ip_timeout;
     gboolean valid;
     MMModemState state;
 
@@ -925,6 +926,9 @@ set_property (GObject *object, guint prop_id,
     case MM_MODEM_PROP_IP_METHOD:
         priv->ip_method = g_value_get_uint (value);
         break;
+    case MM_MODEM_PROP_IP_TIMEOUT:
+        priv->ip_timeout = g_value_get_uint (value);
+        break;
     case MM_MODEM_PROP_VALID:
     case MM_MODEM_PROP_TYPE:
     case MM_MODEM_PROP_ENABLED:
@@ -997,6 +1001,9 @@ get_property (GObject *object, guint prop_id,
     case MM_MODEM_PROP_IP_METHOD:
         g_value_set_uint (value, priv->ip_method);
         break;
+    case MM_MODEM_PROP_IP_TIMEOUT:
+        g_value_set_uint (value, priv->ip_timeout);
+        break;
     case MM_MODEM_PROP_VALID:
         g_value_set_boolean (value, priv->valid);
         break;
@@ -1105,6 +1112,10 @@ mm_modem_base_class_init (MMModemBaseClass *klass)
                                       MM_MODEM_PROP_IP_METHOD,
                                       MM_MODEM_IP_METHOD);
 
+    g_object_class_override_property (object_class,
+                                      MM_MODEM_PROP_IP_TIMEOUT,
+                                      MM_MODEM_IP_TIMEOUT);
+
     g_object_class_override_property (object_class,
                                       MM_MODEM_PROP_VALID,
                                       MM_MODEM_VALID);

src/mm-modem.c

@@ -860,6 +860,16 @@ mm_modem_init (gpointer g_iface)
                             MM_MODEM_IP_METHOD_PPP,
                             G_PARAM_READWRITE));
 
+    g_object_interface_install_property
+        (g_iface,
+         g_param_spec_uint (MM_MODEM_IP_TIMEOUT,
+                            "IP timeout",
+                            "Maximum time to wait for a successful IP establishment, "
+                            "when PPP is used. Modems with special needs will set this "
+                            "property to a value greater than 0",
+                            0, G_MAXUINT32, 0,
+                            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
+
     g_object_interface_install_property
         (g_iface,
          g_param_spec_boolean (MM_MODEM_VALID,

src/mm-modem.h

@@ -38,6 +38,7 @@
 #define MM_MODEM_DRIVER        "driver"
 #define MM_MODEM_TYPE          "type"
 #define MM_MODEM_IP_METHOD     "ip-method"
+#define MM_MODEM_IP_TIMEOUT    "ip-timeout"
 #define MM_MODEM_ENABLED       "enabled"
 #define MM_MODEM_EQUIPMENT_IDENTIFIER "equipment-identifier"
 #define MM_MODEM_DEVICE_IDENTIFIER "device-identifier"
@@ -71,7 +72,8 @@ typedef enum {
     MM_MODEM_PROP_DEVICE_IDENTIFIER,
     MM_MODEM_PROP_HW_VID,       /* Not exported */
     MM_MODEM_PROP_HW_PID,       /* Not exported */
-    MM_MODEM_PROP_NETWORK_TIMEZONE
+    MM_MODEM_PROP_NETWORK_TIMEZONE,
+    MM_MODEM_PROP_IP_TIMEOUT
 } MMModemProp;
 
 typedef struct _MMModem MMModem;