[PATCH 6/8] device-bt, device-modem: listen for data port changes in the `NMModem'



The new ModemManager1-based `NMModemBroadband' objects will set the data port
information only after having created the bearer as part of the connection
process. The devices, therefore, need to listen to changes in the `data-port'
property, so that the `ip-iface' in the `NMDevice' is set before finishing the
stage1 of the activation. This is required in order to have a proper ifup of the
data port.
---
 src/nm-device-bt.c    | 15 ++++++++++++++-
 src/nm-device-modem.c | 15 +++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/nm-device-bt.c b/src/nm-device-bt.c
index 9d0d634..5bc324c 100644
--- a/src/nm-device-bt.c
+++ b/src/nm-device-bt.c
@@ -578,6 +578,14 @@ modem_ip4_config_result (NMModem *self,
 	}
 }
 
+static void
+data_port_changed_cb (NMModem *modem, GParamSpec *pspec, gpointer user_data)
+{
+	NMDevice *self = NM_DEVICE (user_data);
+
+	nm_device_set_ip_iface (self, nm_modem_get_data_port (modem));
+}
+
 static gboolean
 modem_stage1 (NMDeviceBt *self, NMModem *modem, NMDeviceStateReason *reason)
 {
@@ -672,7 +680,12 @@ nm_device_bt_modem_added (NMDeviceBt *self,
 	g_signal_connect (modem, NM_MODEM_AUTH_REQUESTED, G_CALLBACK (modem_auth_requested), self);
 	g_signal_connect (modem, NM_MODEM_AUTH_RESULT, G_CALLBACK (modem_auth_result), self);
 
-	nm_device_set_ip_iface (NM_DEVICE (self), modem_data_port);
+	/* In the old ModemManager the data port is known from the very beginning;
+	 * while in the new ModemManager the data port is set afterwards when the bearer gets
+	 * created */
+	if (modem_data_port)
+		nm_device_set_ip_iface (NM_DEVICE (self), modem_data_port);
+	g_signal_connect (modem, "notify::" NM_MODEM_DATA_PORT, G_CALLBACK (data_port_changed_cb), self);
 
 	/* Kick off the modem connection */
 	if (!modem_stage1 (self, modem, &reason))
diff --git a/src/nm-device-modem.c b/src/nm-device-modem.c
index 0a331f8..d9ef5c8 100644
--- a/src/nm-device-modem.c
+++ b/src/nm-device-modem.c
@@ -163,6 +163,16 @@ modem_ip4_config_result (NMModem *self,
 }
 
 static void
+data_port_changed_cb (NMModem *modem, GParamSpec *pspec, gpointer user_data)
+{
+	NMDevice *self = NM_DEVICE (user_data);
+
+	/* We set the IP iface in the device as soon as we know it, so that we
+	 * properly ifup it if needed */
+	nm_device_set_ip_iface (self, nm_modem_get_data_port (modem));
+}
+
+static void
 modem_enabled_cb (NMModem *modem, GParamSpec *pspec, gpointer user_data)
 {
 	NMDeviceModem *self = NM_DEVICE_MODEM (user_data);
@@ -417,6 +427,11 @@ set_modem (NMDeviceModem *self, NMModem *modem)
 	g_signal_connect (modem, NM_MODEM_AUTH_RESULT, G_CALLBACK (modem_auth_result), self);
 	g_signal_connect (modem, "notify::" NM_MODEM_ENABLED, G_CALLBACK (modem_enabled_cb), self);
 	g_signal_connect (modem, "notify::" NM_MODEM_CONNECTED, G_CALLBACK (modem_connected_cb), self);
+
+	/* In the old ModemManager the data port is known from the very beginning;
+	 * while in the new ModemManager the data port is set afterwards when the bearer gets
+	 * created */
+	g_signal_connect (modem, "notify::" NM_MODEM_DATA_PORT, G_CALLBACK (data_port_changed_cb), self);
 }
 
 static void
-- 
1.8.0



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