bearer,3gpp: dial operation specifies which data port to use

Instead of deciding in advance which data port to use, we let the dialling
operation gather it. For the generic dialling logic, ATD-based, always an
'AT' port will be used as data port, even if we grabbed a 'net' port. Those
plugins that can work with 'net' ports will grab the specific 'net' port
themselves.

13 files changed, 312 insertions, 317 deletions

diff --git a/plugins/huawei/mm-broadband-bearer-huawei.c b/plugins/huawei/mm-broadband-bearer-huawei.c
index 804d1659..364760fd 100644
--- a/plugins/huawei/mm-broadband-bearer-huawei.c
+++ b/plugins/huawei/mm-broadband-bearer-huawei.c
@@ -329,7 +329,6 @@ connect_3gpp (MMBroadbandBearer *self,
               MMBroadbandModem *modem,
               MMAtSerialPort *primary,
               MMAtSerialPort *secondary,
-              MMPort *data,
               GCancellable *cancellable,
               GAsyncReadyCallback callback,
               gpointer user_data)
@@ -343,7 +342,6 @@ connect_3gpp (MMBroadbandBearer *self,
     ctx->self = g_object_ref (self);
     ctx->modem = g_object_ref (modem);
     ctx->primary = g_object_ref (primary);
-    ctx->data = g_object_ref (data);
     ctx->result = g_simple_async_result_new (G_OBJECT (self),
                                              callback,
                                              user_data,
@@ -354,6 +352,19 @@ connect_3gpp (MMBroadbandBearer *self,
     g_assert (ctx->self->priv->connect_pending == NULL);
     g_assert (ctx->self->priv->disconnect_pending == NULL);
 
+    /* We need a net data port */
+    ctx->data = mm_base_modem_get_best_data_port (MM_BASE_MODEM (modem),
+                                                  MM_PORT_TYPE_NET);
+    if (!ctx->data) {
+        g_simple_async_result_set_error (
+            ctx->result,
+            MM_CORE_ERROR,
+            MM_CORE_ERROR_NOT_FOUND,
+            "No valid data port found to launch connection");
+        connect_3gpp_context_complete_and_free (ctx);
+        return;
+    }
+
     /* Run! */
     connect_3gpp_context_step (ctx);
 }
diff --git a/plugins/huawei/mm-broadband-modem-huawei.c b/plugins/huawei/mm-broadband-modem-huawei.c
index b5ce8973..c1a29b3e 100644
--- a/plugins/huawei/mm-broadband-modem-huawei.c
+++ b/plugins/huawei/mm-broadband-modem-huawei.c
@@ -1368,7 +1368,7 @@ huawei_modem_create_bearer (MMIfaceModem *self,
                                              user_data,
                                              huawei_modem_create_bearer);
 
-    if (mm_port_get_port_type (mm_base_modem_peek_best_data_port (MM_BASE_MODEM (self))) == MM_PORT_TYPE_NET) {
+    if (mm_base_modem_peek_best_data_port (MM_BASE_MODEM (self), MM_PORT_TYPE_NET)) {
         /* If we get a 'net' port, check if driver is 'cdc_ether' or 'cdc_ncm' */
         const gchar **drivers;
         guint i;
diff --git a/plugins/icera/mm-broadband-bearer-icera.c b/plugins/icera/mm-broadband-bearer-icera.c
index 589bdc4e..b7ea8df0 100644
--- a/plugins/icera/mm-broadband-bearer-icera.c
+++ b/plugins/icera/mm-broadband-bearer-icera.c
@@ -504,44 +504,23 @@ typedef struct {
     guint cid;
     GCancellable *cancellable;
     GSimpleAsyncResult *result;
+    MMPort *data;
     guint authentication_retries;
     GError *saved_error;
 } Dial3gppContext;
 
-static Dial3gppContext *
-dial_3gpp_context_new (MMBroadbandBearerIcera *self,
-                       MMBaseModem *modem,
-                       MMAtSerialPort *primary,
-                       guint cid,
-                       GCancellable *cancellable,
-                       GAsyncReadyCallback callback,
-                       gpointer user_data)
-{
-    Dial3gppContext *ctx;
-
-    ctx = g_new0 (Dial3gppContext, 1);
-    ctx->self = g_object_ref (self);
-    ctx->modem = g_object_ref (modem);
-    ctx->primary = g_object_ref (primary);
-    ctx->cid = cid;
-    ctx->result = g_simple_async_result_new (G_OBJECT (self),
-                                             callback,
-                                             user_data,
-                                             dial_3gpp_context_new);
-    ctx->cancellable = g_object_ref (cancellable);
-    return ctx;
-}
-
 static void
 dial_3gpp_context_complete_and_free (Dial3gppContext *ctx)
 {
     g_simple_async_result_complete_in_idle (ctx->result);
+    if (ctx->data)
+        g_object_unref (ctx->data);
     g_object_unref (ctx->cancellable);
     g_object_unref (ctx->result);
     g_object_unref (ctx->primary);
     g_object_unref (ctx->modem);
     g_object_unref (ctx->self);
-    g_free (ctx);
+    g_slice_free (Dial3gppContext, ctx);
 }
 
 static gboolean
@@ -571,12 +550,15 @@ dial_3gpp_context_complete_and_free_if_cancelled (Dial3gppContext *ctx)
     return TRUE;
 }
 
-static gboolean
+static MMPort *
 dial_3gpp_finish (MMBroadbandBearer *self,
                   GAsyncResult *res,
                   GError **error)
 {
-    return !g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error);
+    if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error))
+        return NULL;
+
+    return MM_PORT (g_object_ref (g_simple_async_result_get_op_res_gpointer (G_SIMPLE_ASYNC_RESULT (res))));
 }
 
 static void
@@ -764,7 +746,9 @@ report_connect_status (MMBroadbandBearerIcera *self,
             return;
         }
 
-        g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
+        g_simple_async_result_set_op_res_gpointer (ctx->result,
+                                                   g_object_ref (ctx->data),
+                                                   (GDestroyNotify)g_object_unref);
         dial_3gpp_context_complete_and_free (ctx);
         return;
 
@@ -1039,21 +1023,39 @@ static void
 dial_3gpp (MMBroadbandBearer *self,
            MMBaseModem *modem,
            MMAtSerialPort *primary,
-           MMPort *data, /* unused by us */
            guint cid,
            GCancellable *cancellable,
            GAsyncReadyCallback callback,
            gpointer user_data)
 {
+    Dial3gppContext *ctx;
+
     g_assert (primary != NULL);
 
-    authenticate (dial_3gpp_context_new (MM_BROADBAND_BEARER_ICERA (self),
-                                         modem,
-                                         primary,
-                                         cid,
-                                         cancellable,
-                                         callback,
-                                         user_data));
+    ctx = g_slice_new0 (Dial3gppContext);
+    ctx->self = g_object_ref (self);
+    ctx->modem = g_object_ref (modem);
+    ctx->primary = g_object_ref (primary);
+    ctx->cid = cid;
+    ctx->result = g_simple_async_result_new (G_OBJECT (self),
+                                             callback,
+                                             user_data,
+                                             dial_3gpp);
+    ctx->cancellable = g_object_ref (cancellable);
+
+    /* We need a net data port */
+    ctx->data = mm_base_modem_get_best_data_port (modem, MM_PORT_TYPE_NET);
+    if (!ctx->data) {
+        g_simple_async_result_set_error (
+            ctx->result,
+            MM_CORE_ERROR,
+            MM_CORE_ERROR_NOT_FOUND,
+            "No valid data port found to launch connection");
+        dial_3gpp_context_complete_and_free (ctx);
+        return;
+    }
+
+    authenticate (ctx);
 }
 
 /*****************************************************************************/
diff --git a/plugins/icera/mm-broadband-modem-icera.c b/plugins/icera/mm-broadband-modem-icera.c
index ca292fd7..5446fe68 100644
--- a/plugins/icera/mm-broadband-modem-icera.c
+++ b/plugins/icera/mm-broadband-modem-icera.c
@@ -733,25 +733,6 @@ broadband_bearer_icera_new_ready (GObject *source,
 }
 
 static void
-broadband_bearer_new_ready (GObject *source,
-                            GAsyncResult *res,
-                            GSimpleAsyncResult *simple)
-{
-    MMBearer *bearer = NULL;
-    GError *error = NULL;
-
-    bearer = mm_broadband_bearer_new_finish (res, &error);
-    if (!bearer)
-        g_simple_async_result_take_error (simple, error);
-    else
-        g_simple_async_result_set_op_res_gpointer (simple,
-                                                   bearer,
-                                                   (GDestroyNotify)g_object_unref);
-    g_simple_async_result_complete (simple);
-    g_object_unref (simple);
-}
-
-static void
 modem_create_bearer (MMIfaceModem *self,
                      MMBearerProperties *properties,
                      GAsyncReadyCallback callback,
@@ -764,17 +745,6 @@ modem_create_bearer (MMIfaceModem *self,
                                         user_data,
                                         modem_create_bearer);
 
-    /* If data port is AT create a generic bearer */
-    if (MM_IS_AT_SERIAL_PORT (mm_base_modem_peek_best_data_port (MM_BASE_MODEM (self)))) {
-        mm_broadband_bearer_new (
-            MM_BROADBAND_MODEM (self),
-            properties,
-            NULL, /* cancellable */
-            (GAsyncReadyCallback)broadband_bearer_new_ready,
-            result);
-        return;
-    }
-
     /* Otherwise create a Icera bearer */
     mm_broadband_bearer_icera_new (
         MM_BROADBAND_MODEM (self),
diff --git a/plugins/mbm/mm-broadband-bearer-mbm.c b/plugins/mbm/mm-broadband-bearer-mbm.c
index ee9399db..264d084b 100644
--- a/plugins/mbm/mm-broadband-bearer-mbm.c
+++ b/plugins/mbm/mm-broadband-bearer-mbm.c
@@ -57,46 +57,23 @@ typedef struct {
     MMAtSerialPort *primary;
     guint cid;
     GCancellable *cancellable;
+    MMPort *data;
     GSimpleAsyncResult *result;
     guint poll_count;
 } Dial3gppContext;
 
-static Dial3gppContext *
-dial_3gpp_context_new (MMBroadbandBearerMbm *self,
-                       MMBaseModem *modem,
-                       MMAtSerialPort *primary,
-                       guint cid,
-                       GCancellable *cancellable,
-                       GAsyncReadyCallback callback,
-                       gpointer user_data)
-{
-    Dial3gppContext *ctx;
-
-    ctx = g_new0 (Dial3gppContext, 1);
-    ctx->self = g_object_ref (self);
-    ctx->modem = g_object_ref (modem);
-    ctx->primary = g_object_ref (primary);
-    ctx->cid = cid;
-    ctx->result = g_simple_async_result_new (G_OBJECT (self),
-                                             callback,
-                                             user_data,
-                                             dial_3gpp_context_new);
-    ctx->cancellable = g_object_ref (cancellable);
-    ctx->poll_count = 0;
-
-    return ctx;
-}
-
 static void
 dial_3gpp_context_complete_and_free (Dial3gppContext *ctx)
 {
-    g_simple_async_result_complete (ctx->result);
+    g_simple_async_result_complete_in_idle (ctx->result);
+    if (ctx->data)
+        g_object_unref (ctx->data);
     g_object_unref (ctx->cancellable);
     g_object_unref (ctx->result);
     g_object_unref (ctx->primary);
     g_object_unref (ctx->modem);
     g_object_unref (ctx->self);
-    g_free (ctx);
+    g_slice_free (Dial3gppContext, ctx);
 }
 
 static gboolean
@@ -126,12 +103,15 @@ dial_3gpp_context_complete_and_free_if_cancelled (Dial3gppContext *ctx)
     return TRUE;
 }
 
-static gboolean
+static MMPort *
 dial_3gpp_finish (MMBroadbandBearer *self,
                   GAsyncResult *res,
                   GError **error)
 {
-    return !g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error);
+    if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error))
+        return NULL;
+
+    return MM_PORT (g_object_ref (g_simple_async_result_get_op_res_gpointer (G_SIMPLE_ASYNC_RESULT (res))));
 }
 
 void
@@ -164,7 +144,9 @@ mm_broadband_bearer_mbm_report_connection_status (MMBroadbandBearerMbm *self,
         if (!ctx)
             break;
 
-        g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
+        g_simple_async_result_set_op_res_gpointer (ctx->result,
+                                                   g_object_ref (ctx->data),
+                                                   (GDestroyNotify)g_object_unref);
         dial_3gpp_context_complete_and_free (ctx);
         return;
 
@@ -433,21 +415,40 @@ static void
 dial_3gpp (MMBroadbandBearer *self,
            MMBaseModem *modem,
            MMAtSerialPort *primary,
-           MMPort *data, /* unused by us */
            guint cid,
            GCancellable *cancellable,
            GAsyncReadyCallback callback,
            gpointer user_data)
 {
+    Dial3gppContext *ctx;
+
     g_assert (primary != NULL);
 
-    authenticate (dial_3gpp_context_new (MM_BROADBAND_BEARER_MBM (self),
-                                         modem,
-                                         primary,
-                                         cid,
-                                         cancellable,
-                                         callback,
-                                         user_data));
+    ctx = g_slice_new0 (Dial3gppContext);
+    ctx->self = g_object_ref (self);
+    ctx->modem = g_object_ref (modem);
+    ctx->primary = g_object_ref (primary);
+    ctx->cid = cid;
+    ctx->result = g_simple_async_result_new (G_OBJECT (self),
+                                             callback,
+                                             user_data,
+                                             dial_3gpp);
+    ctx->cancellable = g_object_ref (cancellable);
+    ctx->poll_count = 0;
+
+    /* We need a net data port */
+    ctx->data = mm_base_modem_get_best_data_port (modem, MM_PORT_TYPE_NET);
+    if (!ctx->data) {
+        g_simple_async_result_set_error (
+            ctx->result,
+            MM_CORE_ERROR,
+            MM_CORE_ERROR_NOT_FOUND,
+            "No valid data port found to launch connection");
+        dial_3gpp_context_complete_and_free (ctx);
+        return;
+    }
+
+    authenticate (ctx);
 }
 
 /*****************************************************************************/
diff --git a/plugins/novatel/mm-broadband-bearer-novatel-lte.c b/plugins/novatel/mm-broadband-bearer-novatel-lte.c
index 88d46cc7..a12e5984 100644
--- a/plugins/novatel/mm-broadband-bearer-novatel-lte.c
+++ b/plugins/novatel/mm-broadband-bearer-novatel-lte.c
@@ -55,45 +55,18 @@ typedef struct {
     gint retries;
 } DetailedConnectContext;
 
-static DetailedConnectContext *
-detailed_connect_context_new (MMBroadbandBearer *self,
-                              MMBroadbandModem *modem,
-                              MMAtSerialPort *primary,
-                              MMPort *data,
-                              GCancellable *cancellable,
-                              GAsyncReadyCallback callback,
-                              gpointer user_data)
-{
-    DetailedConnectContext *ctx;
-
-    ctx = g_new0 (DetailedConnectContext, 1);
-    ctx->self = g_object_ref (self);
-    ctx->modem = MM_BASE_MODEM (g_object_ref (modem));
-    ctx->primary = g_object_ref (primary);
-    ctx->data = g_object_ref (data);
-    /* NOTE:
-     * We don't currently support cancelling AT commands, so we'll just check
-     * whether the operation is to be cancelled at each step. */
-    ctx->cancellable = g_object_ref (cancellable);
-    ctx->result = g_simple_async_result_new (G_OBJECT (self),
-                                             callback,
-                                             user_data,
-                                             detailed_connect_context_new);
-    ctx->retries = 4;
-    return ctx;
-}
-
 static void
 detailed_connect_context_complete_and_free (DetailedConnectContext *ctx)
 {
     g_simple_async_result_complete_in_idle (ctx->result);
     g_object_unref (ctx->result);
     g_object_unref (ctx->cancellable);
-    g_object_unref (ctx->data);
+    if (ctx->data)
+        g_object_unref (ctx->data);
     g_object_unref (ctx->primary);
     g_object_unref (ctx->modem);
     g_object_unref (ctx->self);
-    g_free (ctx);
+    g_slice_free (DetailedConnectContext, ctx);
 }
 
 static MMBearerConnectResult *
@@ -264,28 +237,12 @@ connect_3gpp_qmiconnect_ready (MMBaseModem *modem,
 }
 
 static void
-connect_3gpp (MMBroadbandBearer *bearer,
-              MMBroadbandModem *modem,
-              MMAtSerialPort *primary,
-              MMAtSerialPort *secondary,
-              MMPort *data,
-              GCancellable *cancellable,
-              GAsyncReadyCallback callback,
-              gpointer user_data)
+connect_3gpp_authenticate (DetailedConnectContext *ctx)
 {
-    DetailedConnectContext *ctx;
-    gchar *command, *apn, *user, *password;
     MMBearerProperties *config;
+    gchar *command, *apn, *user, *password;
 
-    ctx = detailed_connect_context_new (bearer,
-                                        modem,
-                                        primary,
-                                        data,
-                                        cancellable,
-                                        callback,
-                                        user_data);
-
-    config = mm_bearer_peek_config (MM_BEARER (bearer));
+    config = mm_bearer_peek_config (MM_BEARER (ctx->self));
     apn = mm_at_serial_port_quote_string (mm_bearer_properties_get_apn (config));
     user = mm_at_serial_port_quote_string (mm_bearer_properties_get_user (config));
     password = mm_at_serial_port_quote_string (mm_bearer_properties_get_password (config));
@@ -304,6 +261,44 @@ connect_3gpp (MMBroadbandBearer *bearer,
     g_free (command);
 }
 
+static void
+connect_3gpp (MMBroadbandBearer *self,
+              MMBroadbandModem *modem,
+              MMAtSerialPort *primary,
+              MMAtSerialPort *secondary,
+              GCancellable *cancellable,
+              GAsyncReadyCallback callback,
+              gpointer user_data)
+{
+    DetailedConnectContext *ctx;
+
+    ctx = g_slice_new0 (DetailedConnectContext);
+    ctx->self = g_object_ref (self);
+    ctx->modem = MM_BASE_MODEM (g_object_ref (modem));
+    ctx->primary = g_object_ref (primary);
+    ctx->cancellable = g_object_ref (cancellable);
+    ctx->result = g_simple_async_result_new (G_OBJECT (self),
+                                             callback,
+                                             user_data,
+                                             connect_3gpp);
+    ctx->retries = 4;
+
+    /* Get a 'net' data port */
+    ctx->data = mm_base_modem_peek_best_data_port (MM_BASE_MODEM (modem),
+                                                   MM_PORT_TYPE_NET);
+    if (!ctx->data) {
+        g_simple_async_result_set_error (
+            ctx->result,
+            MM_CORE_ERROR,
+            MM_CORE_ERROR_CONNECTED,
+            "Couldn't connect: no available net port available");
+        detailed_connect_context_complete_and_free (ctx);
+        return;
+    }
+
+    connect_3gpp_authenticate (ctx);
+}
+
 /*****************************************************************************/
 /* 3GPP Disonnection sequence */
 
diff --git a/plugins/option/mm-broadband-bearer-hso.c b/plugins/option/mm-broadband-bearer-hso.c
index 194f1a89..1830bb2f 100644
--- a/plugins/option/mm-broadband-bearer-hso.c
+++ b/plugins/option/mm-broadband-bearer-hso.c
@@ -54,28 +54,6 @@ typedef struct {
     GSimpleAsyncResult *result;
 } GetIpConfig3gppContext;
 
-static GetIpConfig3gppContext *
-get_ip_config_3gpp_context_new (MMBroadbandBearerHso *self,
-                                MMBaseModem *modem,
-                                MMAtSerialPort *primary,
-                                guint cid,
-                                GAsyncReadyCallback callback,
-                                gpointer user_data)
-{
-    GetIpConfig3gppContext *ctx;
-
-    ctx = g_new0 (GetIpConfig3gppContext, 1);
-    ctx->self = g_object_ref (self);
-    ctx->modem = g_object_ref (modem);
-    ctx->primary = g_object_ref (primary);
-    ctx->cid = cid;
-    ctx->result = g_simple_async_result_new (G_OBJECT (self),
-                                             callback,
-                                             user_data,
-                                             get_ip_config_3gpp_context_new);
-    return ctx;
-}
-
 static void
 get_ip_config_context_complete_and_free (GetIpConfig3gppContext *ctx)
 {
@@ -84,7 +62,7 @@ get_ip_config_context_complete_and_free (GetIpConfig3gppContext *ctx)
     g_object_unref (ctx->primary);
     g_object_unref (ctx->modem);
     g_object_unref (ctx->self);
-    g_free (ctx);
+    g_slice_free (GetIpConfig3gppContext, ctx);
 }
 
 static gboolean
@@ -210,8 +188,19 @@ get_ip_config_3gpp (MMBroadbandBearer *self,
                     GAsyncReadyCallback callback,
                     gpointer user_data)
 {
+    GetIpConfig3gppContext *ctx;
     gchar *command;
 
+    ctx = g_slice_new0 (GetIpConfig3gppContext);
+    ctx->self = g_object_ref (self);
+    ctx->modem = g_object_ref (modem);
+    ctx->primary = g_object_ref (primary);
+    ctx->cid = cid;
+    ctx->result = g_simple_async_result_new (G_OBJECT (self),
+                                             callback,
+                                             user_data,
+                                             get_ip_config_3gpp);
+
     command = g_strdup_printf ("AT_OWANDATA=%d", cid);
     mm_base_modem_at_command_full (
         MM_BASE_MODEM (modem),
@@ -222,12 +211,7 @@ get_ip_config_3gpp (MMBroadbandBearer *self,
         FALSE, /* raw */
         NULL, /* cancellable */
         (GAsyncReadyCallback)ip_config_ready,
-        get_ip_config_3gpp_context_new (MM_BROADBAND_BEARER_HSO (self),
-                                        MM_BASE_MODEM (modem),
-                                        primary,
-                                        cid,
-                                        callback,
-                                        user_data));
+        ctx);
     g_free (command);
 }
 
@@ -241,49 +225,23 @@ typedef struct {
     guint cid;
     GCancellable *cancellable;
     GSimpleAsyncResult *result;
+    MMPort *data;
     guint auth_idx;
     GError *saved_error;
 } Dial3gppContext;
 
-static Dial3gppContext *
-dial_3gpp_context_new (MMBroadbandBearerHso *self,
-                       MMBaseModem *modem,
-                       MMAtSerialPort *primary,
-                       guint cid,
-                       GCancellable *cancellable,
-                       GAsyncReadyCallback callback,
-                       gpointer user_data)
-{
-    Dial3gppContext *ctx;
-
-    ctx = g_new0 (Dial3gppContext, 1);
-    ctx->self = g_object_ref (self);
-    ctx->modem = g_object_ref (modem);
-    ctx->primary = g_object_ref (primary);
-    ctx->cid = cid;
-    ctx->result = g_simple_async_result_new (G_OBJECT (self),
-                                             callback,
-                                             user_data,
-                                             dial_3gpp_context_new);
-    ctx->cancellable = g_object_ref (cancellable);
-
-    /* Always start with the index that worked last time
-     * (will be 0 the first time)*/
-    ctx->auth_idx = self->priv->auth_idx;
-
-    return ctx;
-}
-
 static void
 dial_3gpp_context_complete_and_free (Dial3gppContext *ctx)
 {
     g_simple_async_result_complete_in_idle (ctx->result);
+    if (ctx->data)
+        g_object_unref (ctx->data);
     g_object_unref (ctx->cancellable);
     g_object_unref (ctx->result);
     g_object_unref (ctx->primary);
     g_object_unref (ctx->modem);
     g_object_unref (ctx->self);
-    g_free (ctx);
+    g_slice_free (Dial3gppContext, ctx);
 }
 
 static gboolean
@@ -313,12 +271,15 @@ dial_3gpp_context_complete_and_free_if_cancelled (Dial3gppContext *ctx)
     return TRUE;
 }
 
-static gboolean
+static MMPort *
 dial_3gpp_finish (MMBroadbandBearer *self,
                   GAsyncResult *res,
                   GError **error)
 {
-    return !g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error);
+    if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error))
+        return NULL;
+
+    return MM_PORT (g_object_ref (g_simple_async_result_get_op_res_gpointer (G_SIMPLE_ASYNC_RESULT (res))));
 }
 
 static void
@@ -400,7 +361,9 @@ mm_broadband_bearer_hso_report_connection_status (MMBroadbandBearerHso *self,
             return;
         }
 
-        g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
+        g_simple_async_result_set_op_res_gpointer (ctx->result,
+                                                   g_object_ref (ctx->data),
+                                                   (GDestroyNotify)g_object_unref);
         dial_3gpp_context_complete_and_free (ctx);
         return;
 
@@ -713,21 +676,43 @@ static void
 dial_3gpp (MMBroadbandBearer *self,
            MMBaseModem *modem,
            MMAtSerialPort *primary,
-           MMPort *data, /* unused by us */
            guint cid,
            GCancellable *cancellable,
            GAsyncReadyCallback callback,
            gpointer user_data)
 {
+    Dial3gppContext *ctx;
+
     g_assert (primary != NULL);
 
-    authenticate (dial_3gpp_context_new (MM_BROADBAND_BEARER_HSO (self),
-                                         modem,
-                                         primary,
-                                         cid,
-                                         cancellable,
-                                         callback,
-                                         user_data));
+    ctx = g_slice_new0 (Dial3gppContext);
+    ctx->self = g_object_ref (self);
+    ctx->modem = g_object_ref (modem);
+    ctx->primary = g_object_ref (primary);
+    ctx->cid = cid;
+    ctx->result = g_simple_async_result_new (G_OBJECT (self),
+                                             callback,
+                                             user_data,
+                                             dial_3gpp);
+    ctx->cancellable = g_object_ref (cancellable);
+
+    /* Always start with the index that worked last time
+     * (will be 0 the first time)*/
+    ctx->auth_idx = ctx->self->priv->auth_idx;
+
+    /* We need a net data port */
+    ctx->data = mm_base_modem_get_best_data_port (modem, MM_PORT_TYPE_NET);
+    if (!ctx->data) {
+        g_simple_async_result_set_error (
+            ctx->result,
+            MM_CORE_ERROR,
+            MM_CORE_ERROR_NOT_FOUND,
+            "No valid data port found to launch connection");
+        dial_3gpp_context_complete_and_free (ctx);
+        return;
+    }
+
+    authenticate (ctx);
 }
 
 /*****************************************************************************/
diff --git a/plugins/sierra/mm-broadband-bearer-sierra.c b/plugins/sierra/mm-broadband-bearer-sierra.c
index 17473d12..7a07b609 100644
--- a/plugins/sierra/mm-broadband-bearer-sierra.c
+++ b/plugins/sierra/mm-broadband-bearer-sierra.c
@@ -69,12 +69,15 @@ dial_3gpp_context_complete_and_free (Dial3gppContext *ctx)
     g_slice_free (Dial3gppContext, ctx);
 }
 
-static gboolean
+static MMPort *
 dial_3gpp_finish (MMBroadbandBearer *self,
                   GAsyncResult *res,
                   GError **error)
 {
-    return !g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error);
+    if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error))
+        return NULL;
+
+    return MM_PORT (g_object_ref (g_simple_async_result_get_op_res_gpointer (G_SIMPLE_ASYNC_RESULT (res))));
 }
 
 static void dial_3gpp_context_step (Dial3gppContext *ctx);
@@ -86,7 +89,8 @@ parent_dial_3gpp_ready (MMBroadbandBearer *self,
 {
     GError *error = NULL;
 
-    if (!MM_BROADBAND_BEARER_CLASS (mm_broadband_bearer_sierra_parent_class)->dial_3gpp_finish (self, res, &error)) {
+    ctx->data = MM_BROADBAND_BEARER_CLASS (mm_broadband_bearer_sierra_parent_class)->dial_3gpp_finish (self, res, &error);
+    if (!ctx->data) {
         g_simple_async_result_take_error (ctx->result, error);
         dial_3gpp_context_complete_and_free (ctx);
         return;
@@ -251,7 +255,9 @@ dial_3gpp_context_step (Dial3gppContext *ctx)
         ctx->step++;
 
     case DIAL_3GPP_STEP_CONNECT:
-        if (!MM_IS_AT_SERIAL_PORT (ctx->data)) {
+        /* We need a net or AT data port */
+        ctx->data = mm_base_modem_get_best_data_port (ctx->modem, MM_PORT_TYPE_NET);
+        if (ctx->data) {
             gchar *command;
 
             command = g_strdup_printf ("!SCACT=1,%d", ctx->cid);
@@ -273,7 +279,6 @@ dial_3gpp_context_step (Dial3gppContext *ctx)
             MM_BROADBAND_BEARER (ctx->self),
             ctx->modem,
             ctx->primary,
-            ctx->data,
             ctx->cid,
             ctx->cancellable,
             (GAsyncReadyCallback)parent_dial_3gpp_ready,
@@ -281,7 +286,9 @@ dial_3gpp_context_step (Dial3gppContext *ctx)
         return;
 
     case DIAL_3GPP_STEP_LAST:
-        g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
+        g_simple_async_result_set_op_res_gpointer (ctx->result,
+                                                   g_object_ref (ctx->data),
+                                                   (GDestroyNotify)g_object_unref);
         dial_3gpp_context_complete_and_free (ctx);
         return;
     }
@@ -291,7 +298,6 @@ static void
 dial_3gpp (MMBroadbandBearer *self,
            MMBaseModem *modem,
            MMAtSerialPort *primary,
-           MMPort *data,
            guint cid,
            GCancellable *cancellable,
            GAsyncReadyCallback callback,
@@ -311,7 +317,6 @@ dial_3gpp (MMBroadbandBearer *self,
                                              user_data,
                                              dial_3gpp);
     ctx->cancellable = g_object_ref (cancellable);
-    ctx->data = g_object_ref (data);
     ctx->step = DIAL_3GPP_STEP_FIRST;
 
     dial_3gpp_context_step (ctx);
diff --git a/src/mm-base-modem.c b/src/mm-base-modem.c
index 86ff8123..7407682d 100644
--- a/src/mm-base-modem.c
+++ b/src/mm-base-modem.c
@@ -699,16 +699,18 @@ mm_base_modem_peek_port_qmi_for_data (MMBaseModem *self,
 #endif /* WITH_QMI */
 
 MMPort *
-mm_base_modem_get_best_data_port (MMBaseModem *self)
+mm_base_modem_get_best_data_port (MMBaseModem *self,
+                                  MMPortType type)
 {
     MMPort *port;
 
-    port = mm_base_modem_peek_best_data_port (self);
+    port = mm_base_modem_peek_best_data_port (self, type);
     return (port ? g_object_ref (port) : NULL);
 }
 
 MMPort *
-mm_base_modem_peek_best_data_port (MMBaseModem *self)
+mm_base_modem_peek_best_data_port (MMBaseModem *self,
+                                   MMPortType type)
 {
     GList *l;
 
@@ -716,8 +718,11 @@ mm_base_modem_peek_best_data_port (MMBaseModem *self)
 
     /* Return first not-connected data port */
     for (l = self->priv->data; l; l = g_list_next (l)) {
-        if (!mm_port_get_connected ((MMPort *)l->data))
+        if (!mm_port_get_connected ((MMPort *)l->data) &&
+            (mm_port_get_port_type ((MMPort *)l->data) == type ||
+             type == MM_PORT_TYPE_UNKNOWN)) {
             return (MMPort *)l->data;
+        }
     }
 
     return NULL;
diff --git a/src/mm-base-modem.h b/src/mm-base-modem.h
index 9d4e3a1b..95ab21f6 100644
--- a/src/mm-base-modem.h
+++ b/src/mm-base-modem.h
@@ -127,7 +127,7 @@ MMQmiPort        *mm_base_modem_peek_port_qmi          (MMBaseModem *self);
 MMQmiPort        *mm_base_modem_peek_port_qmi_for_data (MMBaseModem *self, MMPort *data, GError **error);
 #endif
 MMAtSerialPort   *mm_base_modem_peek_best_at_port      (MMBaseModem *self, GError **error);
-MMPort           *mm_base_modem_peek_best_data_port    (MMBaseModem *self);
+MMPort           *mm_base_modem_peek_best_data_port    (MMBaseModem *self, MMPortType type);
 GList            *mm_base_modem_peek_data_ports        (MMBaseModem *self);
 
 MMAtSerialPort   *mm_base_modem_get_port_primary      (MMBaseModem *self);
@@ -140,7 +140,7 @@ MMQmiPort        *mm_base_modem_get_port_qmi          (MMBaseModem *self);
 MMQmiPort        *mm_base_modem_get_port_qmi_for_data (MMBaseModem *self, MMPort *data, GError **error);
 #endif
 MMAtSerialPort   *mm_base_modem_get_best_at_port      (MMBaseModem *self, GError **error);
-MMPort           *mm_base_modem_get_best_data_port    (MMBaseModem *self);
+MMPort           *mm_base_modem_get_best_data_port    (MMBaseModem *self, MMPortType type);
 GList            *mm_base_modem_get_data_ports        (MMBaseModem *self);
 
 void     mm_base_modem_set_hotplugged (MMBaseModem *self,
diff --git a/src/mm-bearer-qmi.c b/src/mm-bearer-qmi.c
index a4131387..e31f7381 100644
--- a/src/mm-bearer-qmi.c
+++ b/src/mm-bearer-qmi.c
@@ -791,7 +791,7 @@ _connect (MMBearer *self,
     g_assert (modem);
 
     /* Grab a data port */
-    data = mm_base_modem_get_best_data_port (modem);
+    data = mm_base_modem_get_best_data_port (modem, MM_PORT_TYPE_NET);
     if (!data) {
         g_simple_async_report_error_in_idle (
             G_OBJECT (self),
diff --git a/src/mm-broadband-bearer.c b/src/mm-broadband-bearer.c
index b0a46713..2b0819c1 100644
--- a/src/mm-broadband-bearer.c
+++ b/src/mm-broadband-bearer.c
@@ -76,10 +76,12 @@ typedef struct {
     MMBaseModem *modem;
     MMAtSerialPort *primary;
     MMAtSerialPort *secondary;
-    MMPort *data;
     GCancellable *cancellable;
     GSimpleAsyncResult *result;
 
+    MMPort *data;
+    gboolean close_data_on_exit;
+
     /* 3GPP-specific */
     guint cid;
     guint max_cid;
@@ -102,10 +104,14 @@ detailed_connect_context_complete_and_free (DetailedConnectContext *ctx)
     g_simple_async_result_complete_in_idle (ctx->result);
     g_object_unref (ctx->result);
     g_object_unref (ctx->cancellable);
-    g_object_unref (ctx->data);
     g_object_unref (ctx->primary);
     if (ctx->secondary)
         g_object_unref (ctx->secondary);
+    if (ctx->data) {
+        if (ctx->close_data_on_exit)
+            mm_serial_port_close (MM_SERIAL_PORT (ctx->data));
+        g_object_unref (ctx->data);
+    }
     g_object_unref (ctx->self);
     g_object_unref (ctx->modem);
     g_slice_free (DetailedConnectContext, ctx);
@@ -143,7 +149,6 @@ detailed_connect_context_new (MMBroadbandBearer *self,
                               MMBroadbandModem *modem,
                               MMAtSerialPort *primary,
                               MMAtSerialPort *secondary,
-                              MMPort *data,
                               GCancellable *cancellable,
                               GAsyncReadyCallback callback,
                               gpointer user_data)
@@ -155,7 +160,6 @@ detailed_connect_context_new (MMBroadbandBearer *self,
     ctx->modem = MM_BASE_MODEM (g_object_ref (modem));
     ctx->primary = g_object_ref (primary);
     ctx->secondary = (secondary ? g_object_ref (secondary) : NULL);
-    ctx->data = g_object_ref (data);
     ctx->result = g_simple_async_result_new (G_OBJECT (self),
                                              callback,
                                              user_data,
@@ -168,6 +172,37 @@ detailed_connect_context_new (MMBroadbandBearer *self,
 }
 
 /*****************************************************************************/
+/* Generic implementations (both 3GPP and CDMA) are always AT-port based */
+
+static MMAtSerialPort *
+common_get_at_data_port (MMBaseModem *modem,
+                         GError **error)
+{
+    MMPort *data;
+
+    /* Look for best data port, NULL if none available. */
+    data = mm_base_modem_peek_best_data_port (modem, MM_PORT_TYPE_AT);
+    if (!data) {
+        g_set_error (error,
+                     MM_CORE_ERROR,
+                     MM_CORE_ERROR_CONNECTED,
+                     "Couldn't connect: no port available");
+        return NULL;
+    }
+
+    g_assert (MM_IS_AT_SERIAL_PORT (data));
+
+    if (!mm_serial_port_open (MM_SERIAL_PORT (data), error)) {
+        g_prefix_error (error, "Couldn't connect: cannot keep data port open.");
+        return NULL;
+    }
+
+    mm_dbg ("Connection through a plain serial AT port (%s)", mm_port_get_device (data));
+
+    return MM_AT_SERIAL_PORT (g_object_ref (data));
+}
+
+/*****************************************************************************/
 /* CDMA CONNECT
  *
  * CDMA connection procedure of a bearer involves several steps:
@@ -199,6 +234,9 @@ dial_cdma_ready (MMBaseModem *modem,
 
     /* else... Yuhu! */
 
+    /* Keep port open during connection */
+    ctx->close_data_on_exit = FALSE;
+
     /* Generic CDMA connections are done over PPP always */
     g_assert (MM_IS_AT_SERIAL_PORT (ctx->data));
     config = mm_bearer_ip_config_new ();
@@ -231,7 +269,7 @@ cdma_connect_context_dial (DetailedConnectContext *ctx)
         command = g_strdup ("DT#777");
 
     mm_base_modem_at_command_full (ctx->modem,
-                                   ctx->primary,
+                                   MM_AT_SERIAL_PORT (ctx->data),
                                    command,
                                    90,
                                    FALSE,
@@ -339,32 +377,33 @@ connect_cdma (MMBroadbandBearer *self,
               MMBroadbandModem *modem,
               MMAtSerialPort *primary,
               MMAtSerialPort *secondary, /* unused by us */
-              MMPort *data,
               GCancellable *cancellable,
               GAsyncReadyCallback callback,
               gpointer user_data)
 {
     DetailedConnectContext *ctx;
-    MMPort *real_data;
+    GError *error = NULL;
 
     g_assert (primary != NULL);
 
-    if (MM_IS_AT_SERIAL_PORT (data))
-        real_data = data;
-    else {
-        mm_dbg ("Ignoring 'net' interface in CDMA connection");
-        real_data = MM_PORT (primary);
-    }
-
     ctx = detailed_connect_context_new (self,
                                         modem,
                                         primary,
                                         NULL,
-                                        real_data,
                                         cancellable,
                                         callback,
                                         user_data);
 
+    /* Grab dial port. This gets a reference to the dial port and OPENs it.
+     * If we fail, we'll need to close it ourselves. */
+    ctx->data = (MMPort *)common_get_at_data_port (ctx->modem, &error);
+    if (!ctx->data) {
+        g_simple_async_result_take_error (ctx->result, error);
+        detailed_connect_context_complete_and_free (ctx);
+        return;
+    }
+    ctx->close_data_on_exit = TRUE;
+
     if (mm_bearer_properties_get_rm_protocol (
             mm_bearer_peek_config (MM_BEARER (self))) !=
         MM_MODEM_CDMA_RM_PROTOCOL_UNKNOWN) {
@@ -393,10 +432,12 @@ typedef struct {
     MMBroadbandBearer *self;
     MMBaseModem *modem;
     MMAtSerialPort *primary;
-    MMAtSerialPort *dial_port;
     GCancellable *cancellable;
     GSimpleAsyncResult *result;
     GError *saved_error;
+
+    MMAtSerialPort *dial_port;
+    gboolean close_dial_port_on_exit;
 } Dial3gppContext;
 
 static void
@@ -404,10 +445,11 @@ dial_3gpp_context_complete_and_free (Dial3gppContext *ctx)
 {
     if (ctx->saved_error)
         g_error_free (ctx->saved_error);
+    if (ctx->dial_port)
+        g_object_unref (ctx->dial_port);
     g_object_unref (ctx->cancellable);
     g_simple_async_result_complete (ctx->result);
     g_object_unref (ctx->result);
-    g_object_unref (ctx->dial_port);
     g_object_unref (ctx->primary);
     g_object_unref (ctx->modem);
     g_object_unref (ctx->self);
@@ -441,12 +483,15 @@ dial_3gpp_context_complete_and_free_if_cancelled (Dial3gppContext *ctx)
     return TRUE;
 }
 
-static gboolean
+static MMPort *
 dial_3gpp_finish (MMBroadbandBearer *self,
                   GAsyncResult *res,
                   GError **error)
 {
-    return !g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error);
+    if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error))
+        return NULL;
+
+    return MM_PORT (g_object_ref (g_simple_async_result_get_op_res_gpointer (G_SIMPLE_ASYNC_RESULT (res))));
 }
 
 static void
@@ -475,6 +520,9 @@ extended_error_ready (MMBaseModem *modem,
 
     ctx->saved_error = NULL;
 
+    /* Close the dialling port as we got an error */
+    mm_serial_port_close (MM_SERIAL_PORT (ctx->dial_port));
+
     /* Done with errors */
     dial_3gpp_context_complete_and_free (ctx);
 }
@@ -503,7 +551,9 @@ atd_ready (MMBaseModem *modem,
         return;
     }
 
-    g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
+    g_simple_async_result_set_op_res_gpointer (ctx->result,
+                                               g_object_ref (ctx->dial_port),
+                                               (GDestroyNotify)g_object_unref);
     dial_3gpp_context_complete_and_free (ctx);
 }
 
@@ -511,7 +561,6 @@ static void
 dial_3gpp (MMBroadbandBearer *self,
            MMBaseModem *modem,
            MMAtSerialPort *primary,
-           MMPort *data,
            guint cid,
            GCancellable *cancellable,
            GAsyncReadyCallback callback,
@@ -519,23 +568,29 @@ dial_3gpp (MMBroadbandBearer *self,
 {
     gchar *command;
     Dial3gppContext *ctx;
+    GError *error = NULL;
 
     g_assert (primary != NULL);
 
     ctx = g_slice_new0 (Dial3gppContext);
     ctx->self = g_object_ref (self);
     ctx->modem = g_object_ref (modem);
-    /* Dial port might not be the primary port */
     ctx->primary = g_object_ref (primary);
-    ctx->dial_port = (data && MM_IS_AT_SERIAL_PORT (data) ?
-                      g_object_ref (data) :
-                      g_object_ref (primary));
     ctx->result = g_simple_async_result_new (G_OBJECT (self),
                                              callback,
                                              user_data,
                                              dial_3gpp);
     ctx->cancellable = g_object_ref (cancellable);
 
+    /* Grab dial port. This gets a reference to the dial port and OPENs it.
+     * If we fail, we'll need to close it ourselves. */
+    ctx->dial_port = common_get_at_data_port (ctx->modem, &error);
+    if (!ctx->dial_port) {
+        g_simple_async_result_take_error (ctx->result, error);
+        dial_3gpp_context_complete_and_free (ctx);
+        return;
+    }
+
     /* Use default *99 to connect */
     command = g_strdup_printf ("ATD*99***%d#", cid);
     mm_base_modem_at_command_full (ctx->modem,
@@ -584,6 +639,10 @@ get_ip_config_3gpp_ready (MMBroadbandModem *modem,
         return;
     }
 
+    /* Keep port open during connection */
+    if (MM_IS_AT_SERIAL_PORT (ctx->data))
+        ctx->close_data_on_exit = FALSE;
+
     g_simple_async_result_set_op_res_gpointer (
         ctx->result,
         mm_bearer_connect_result_new (ctx->data, ipv4_config, ipv6_config),
@@ -604,9 +663,8 @@ dial_3gpp_ready (MMBroadbandModem *modem,
     MMBearerIpConfig *config;
     GError *error = NULL;
 
-    if (!MM_BROADBAND_BEARER_GET_CLASS (ctx->self)->dial_3gpp_finish (ctx->self,
-                                                                      res,
-                                                                      &error)) {
+    ctx->data = MM_BROADBAND_BEARER_GET_CLASS (ctx->self)->dial_3gpp_finish (ctx->self, res, &error);
+    if (!ctx->data) {
         /* Clear CID when it failed to connect. */
         ctx->self->priv->cid = 0;
         g_simple_async_result_take_error (ctx->result, error);
@@ -614,6 +672,11 @@ dial_3gpp_ready (MMBroadbandModem *modem,
         return;
     }
 
+    /* If the dialling operation used an AT port, it is assumed to have an extra
+     * open() count. */
+    if (MM_IS_AT_SERIAL_PORT (ctx->data))
+        ctx->close_data_on_exit = TRUE;
+
     if (MM_BROADBAND_BEARER_GET_CLASS (ctx->self)->get_ip_config_3gpp &&
         MM_BROADBAND_BEARER_GET_CLASS (ctx->self)->get_ip_config_3gpp_finish) {
         /* Launch specific IP config retrieval */
@@ -631,6 +694,10 @@ dial_3gpp_ready (MMBroadbandModem *modem,
 
     /* Yuhu! */
 
+    /* Keep port open during connection */
+    if (MM_IS_AT_SERIAL_PORT (ctx->data))
+        ctx->close_data_on_exit = FALSE;
+
     /* If no specific IP retrieval requested, set the default implementation
      * (PPP if data port is AT, DHCP otherwise) */
     config = mm_bearer_ip_config_new ();
@@ -674,7 +741,6 @@ initialize_pdp_context_ready (MMBaseModem *modem,
     MM_BROADBAND_BEARER_GET_CLASS (ctx->self)->dial_3gpp (ctx->self,
                                                           ctx->modem,
                                                           ctx->primary,
-                                                          ctx->data,
                                                           ctx->cid,
                                                           ctx->cancellable,
                                                           (GAsyncReadyCallback)dial_3gpp_ready,
@@ -920,7 +986,6 @@ connect_3gpp (MMBroadbandBearer *self,
               MMBroadbandModem *modem,
               MMAtSerialPort *primary,
               MMAtSerialPort *secondary,
-              MMPort *data,
               GCancellable *cancellable,
               GAsyncReadyCallback callback,
               gpointer user_data)
@@ -933,7 +998,6 @@ connect_3gpp (MMBroadbandBearer *self,
                                         modem,
                                         primary,
                                         secondary,
-                                        data,
                                         cancellable,
                                         callback,
                                         user_data);
@@ -955,7 +1019,6 @@ connect_3gpp (MMBroadbandBearer *self,
 typedef struct {
     MMBroadbandBearer *self;
     GSimpleAsyncResult *result;
-    MMPort *suggested_data;
 } ConnectContext;
 
 static void
@@ -963,7 +1026,6 @@ connect_context_complete_and_free (ConnectContext *ctx)
 {
     g_simple_async_result_complete_in_idle (ctx->result);
     g_object_unref (ctx->result);
-    g_object_unref (ctx->suggested_data);
     g_object_unref (ctx->self);
     g_slice_free (ConnectContext, ctx);
 }
@@ -1044,7 +1106,6 @@ connect (MMBearer *self,
 {
     MMBaseModem *modem = NULL;
     MMAtSerialPort *primary;
-    MMPort *suggested_data;
     ConnectContext *ctx;
 
     /* Don't try to connect if already connected */
@@ -1092,44 +1153,9 @@ connect (MMBearer *self,
         return;
     }
 
-    /* Look for best data port, NULL if none available. */
-    suggested_data = mm_base_modem_peek_best_data_port (modem);
-    if (!suggested_data) {
-        g_simple_async_report_error_in_idle (
-            G_OBJECT (self),
-            callback,
-            user_data,
-            MM_CORE_ERROR,
-            MM_CORE_ERROR_CONNECTED,
-            "Couldn't connect: all available data ports already connected");
-        g_object_unref (modem);
-        return;
-    }
-
-    /* If data port is AT, we need to ensure it's open during the whole
-     * connection. For the case where the primary port is used as data port,
-     * which is actually always right now, this is already ensured because the
-     * primary port is kept open as long as the modem is enabled, but anyway
-     * there's no real problem in keeping an open count here as well. */
-    if (MM_IS_AT_SERIAL_PORT (suggested_data)) {
-        GError *error = NULL;
-
-        if (!mm_serial_port_open (MM_SERIAL_PORT (suggested_data), &error)) {
-            g_prefix_error (&error, "Couldn't connect: cannot keep data port open.");
-            g_simple_async_report_take_gerror_in_idle (
-                G_OBJECT (self),
-                callback,
-                user_data,
-                error);
-            g_object_unref (modem);
-            return;
-        }
-    }
-
     /* In this context, we only keep the stuff we'll need later */
     ctx = g_slice_new0 (ConnectContext);
     ctx->self = g_object_ref (self);
-    ctx->suggested_data = g_object_ref (suggested_data);
     ctx->result = g_simple_async_result_new (G_OBJECT (self),
                                              callback,
                                              user_data,
@@ -1142,7 +1168,6 @@ connect (MMBearer *self,
             MM_BROADBAND_MODEM (modem),
             primary,
             mm_base_modem_peek_port_secondary (modem),
-            suggested_data,
             cancellable,
             (GAsyncReadyCallback) connect_3gpp_ready,
             ctx);
@@ -1157,7 +1182,6 @@ connect (MMBearer *self,
             MM_BROADBAND_MODEM (modem),
             primary,
             mm_base_modem_peek_port_secondary (modem),
-            suggested_data,
             cancellable,
             (GAsyncReadyCallback) connect_cdma_ready,
             ctx);
diff --git a/src/mm-broadband-bearer.h b/src/mm-broadband-bearer.h
index 5e35be50..35d04a93 100644
--- a/src/mm-broadband-bearer.h
+++ b/src/mm-broadband-bearer.h
@@ -52,7 +52,6 @@ struct _MMBroadbandBearerClass {
                                       MMBroadbandModem *modem,
                                       MMAtSerialPort *primary,
                                       MMAtSerialPort *secondary,
-                                      MMPort *data,
                                       GCancellable *cancellable,
                                       GAsyncReadyCallback callback,
                                       gpointer user_data);
@@ -64,12 +63,11 @@ struct _MMBroadbandBearerClass {
     void     (* dial_3gpp)        (MMBroadbandBearer *self,
                                    MMBaseModem *modem,
                                    MMAtSerialPort *primary,
-                                   MMPort *data,
                                    guint cid,
                                    GCancellable *cancellable,
                                    GAsyncReadyCallback callback,
                                    gpointer user_data);
-    gboolean (* dial_3gpp_finish) (MMBroadbandBearer *self,
+    MMPort * (* dial_3gpp_finish) (MMBroadbandBearer *self,
                                    GAsyncResult *res,
                                    GError **error);
 
@@ -107,7 +105,6 @@ struct _MMBroadbandBearerClass {
                                       MMBroadbandModem *modem,
                                       MMAtSerialPort *primary,
                                       MMAtSerialPort *secondary,
-                                      MMPort *data,
                                       GCancellable *cancellable,
                                       GAsyncReadyCallback callback,
                                       gpointer user_data);