[PATCH] sim-qmi: load operator identifier and name from NAS home network

Dan Williams dcbw at redhat.com
Thu Oct 22 13:45:12 PDT 2015


On Thu, 2015-10-22 at 22:29 +0200, Aleksander Morgado wrote:
> On Thu, Oct 22, 2015 at 10:16 PM, Dan Williams <dcbw at redhat.com> wrote:
> > ---
> >  src/mm-sim-qmi.c | 177 +++++++++++++++++++++++++++++++++++++++++++++++++++++--
> >  1 file changed, 173 insertions(+), 4 deletions(-)
> >
> > diff --git a/src/mm-sim-qmi.c b/src/mm-sim-qmi.c
> > index 4eb1b24..b4d0d93 100644
> > --- a/src/mm-sim-qmi.c
> > +++ b/src/mm-sim-qmi.c
> > @@ -231,6 +231,175 @@ load_imsi (MMBaseSim *self,
> >  }
> >
> >  /*****************************************************************************/
> > +/* Load operator identifier */
> > +
> > +static gboolean
> > +get_home_network (QmiClientNas *client,
> > +                  GAsyncResult *res,
> > +                  guint16      *out_mcc,
> > +                  guint16      *out_mnc,
> > +                  gchar        **out_operator_name,
> > +                  GError       **error)
> > +{
> > +    QmiMessageNasGetHomeNetworkOutput *output = NULL;
> > +    gboolean success = FALSE;
> > +
> > +    output = qmi_client_nas_get_home_network_finish (client, res, error);
> > +    if (!output) {
> > +        g_prefix_error (error, "QMI operation failed: ");
> > +    } else if (!qmi_message_nas_get_home_network_output_get_result (output, error)) {
> > +        g_prefix_error (error, "Couldn't get home network: ");
> > +    } else {
> > +        const gchar *name = NULL;
> > +
> > +        qmi_message_nas_get_home_network_output_get_home_network (
> > +            output,
> > +            out_mcc,
> > +            out_mnc,
> > +            &name,
> > +            NULL);
> > +        if (out_operator_name)
> > +            *out_operator_name = g_strdup (name);
> > +        success = TRUE;
> > +    }
> > +
> > +    if (output)
> > +        qmi_message_nas_get_home_network_output_unref (output);
> > +
> > +    return success;
> > +}
> > +
> > +static gchar *
> > +load_operator_identifier_finish (MMBaseSim *self,
> > +                                 GAsyncResult *res,
> > +                                 GError **error)
> > +{
> > +    gchar *operator_identifier;
> > +
> > +    if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error))
> > +        return NULL;
> > +
> > +    operator_identifier = g_strdup (g_simple_async_result_get_op_res_gpointer (G_SIMPLE_ASYNC_RESULT (res)));
> > +    mm_dbg ("loaded operator identifier: %s", operator_identifier);
> > +    return operator_identifier;
> > +}
> > +
> > +static void
> > +load_operator_identifier_ready (QmiClientNas *client,
> > +                                GAsyncResult *res,
> > +                                GSimpleAsyncResult *simple)
> > +{
> > +    guint16 mcc, mnc;
> > +    GError *error = NULL;
> > +
> > +    if (get_home_network (client, res, &mcc, &mnc, NULL, &error)) {
> > +        gchar *operator_id;
> > +
> > +        operator_id = g_strdup_printf ("%" G_GUINT16_FORMAT "%" G_GUINT16_FORMAT, mcc, mnc);
> > +        g_simple_async_result_set_op_res_gpointer (simple,
> > +                                                   operator_id,
> > +                                                   (GDestroyNotify)g_free);
> > +    } else {
> > +        g_simple_async_result_take_error (simple, error);
> > +    }
> > +
> > +    g_simple_async_result_complete (simple);
> > +    g_object_unref (simple);
> > +}
> > +
> > +static void
> > +load_operator_identifier (MMBaseSim *self,
> > +                          GAsyncReadyCallback callback,
> > +                          gpointer user_data)
> > +{
> > +    GSimpleAsyncResult *result;
> > +    QmiClient *client = NULL;
> > +
> > +    if (!ensure_qmi_client (MM_SIM_QMI (self),
> > +                            QMI_SERVICE_NAS, &client,
> > +                            callback, user_data))
> > +        return;
> > +
> > +    result = g_simple_async_result_new (G_OBJECT (self),
> > +                                        callback,
> > +                                        user_data,
> > +                                        load_operator_identifier);
> > +
> > +    mm_dbg ("loading SIM operator identifier...");
> > +    qmi_client_nas_get_home_network (QMI_CLIENT_NAS (client),
> > +                                     NULL,
> > +                                     5,
> > +                                     NULL,
> > +                                     (GAsyncReadyCallback)load_operator_identifier_ready,
> > +                                     result);
> > +}
> > +
> > +/*****************************************************************************/
> > +/* Load operator name */
> > +
> > +static gchar *
> > +load_operator_name_finish (MMBaseSim *self,
> > +                           GAsyncResult *res,
> > +                           GError **error)
> > +{
> > +    gchar *operator_name;
> > +
> > +    if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error))
> > +        return NULL;
> > +
> > +    operator_name = g_strdup (g_simple_async_result_get_op_res_gpointer (G_SIMPLE_ASYNC_RESULT (res)));
> > +    mm_dbg ("loaded operator name: %s", operator_name);
> > +    return operator_name;
> > +}
> > +
> > +static void
> > +load_operator_name_ready (QmiClientNas *client,
> > +                          GAsyncResult *res,
> > +                          GSimpleAsyncResult *simple)
> > +{
> > +    gchar *operator_name = NULL;
> > +    GError *error = NULL;
> > +
> > +    if (get_home_network (client, res, NULL, NULL, &operator_name, &error)) {
> > +        g_simple_async_result_set_op_res_gpointer (simple,
> > +                                                   operator_name,
> > +                                                   (GDestroyNotify)g_free);
> > +    } else {
> > +        g_simple_async_result_take_error (simple, error);
> > +    }
> > +
> > +    g_simple_async_result_complete (simple);
> > +    g_object_unref (simple);
> > +}
> > +
> > +static void
> > +load_operator_name (MMBaseSim *self,
> > +                    GAsyncReadyCallback callback,
> > +                    gpointer user_data)
> > +{
> > +    GSimpleAsyncResult *result;
> > +    QmiClient *client = NULL;
> > +
> > +    if (!ensure_qmi_client (MM_SIM_QMI (self),
> > +                            QMI_SERVICE_NAS, &client,
> > +                            callback, user_data))
> > +        return;
> > +
> > +    result = g_simple_async_result_new (G_OBJECT (self),
> > +                                        callback,
> > +                                        user_data,
> > +                                        load_operator_name);
> > +
> > +    mm_dbg ("loading SIM operator name...");
> > +    qmi_client_nas_get_home_network (QMI_CLIENT_NAS (client),
> > +                                     NULL,
> > +                                     5,
> > +                                     NULL,
> > +                                     (GAsyncReadyCallback)load_operator_name_ready,
> > +                                     result);
> > +}
> > +
> > +/*****************************************************************************/
> >  /* Send PIN */
> >
> >  static GError *
> > @@ -614,10 +783,10 @@ mm_sim_qmi_class_init (MMSimQmiClass *klass)
> >      base_sim_class->load_sim_identifier_finish = load_sim_identifier_finish;
> >      base_sim_class->load_imsi = load_imsi;
> >      base_sim_class->load_imsi_finish = load_imsi_finish;
> > -    base_sim_class->load_operator_identifier = NULL;
> > -    base_sim_class->load_operator_identifier_finish = NULL;
> > -    base_sim_class->load_operator_name = NULL;
> > -    base_sim_class->load_operator_name_finish = NULL;
> > +    base_sim_class->load_operator_identifier = load_operator_identifier;
> > +    base_sim_class->load_operator_identifier_finish = load_operator_identifier_finish;
> > +    base_sim_class->load_operator_name = load_operator_name;
> > +    base_sim_class->load_operator_name_finish = load_operator_name_finish;
> >      base_sim_class->send_pin = send_pin;
> >      base_sim_class->send_pin_finish = send_pin_finish;
> >      base_sim_class->send_puk = send_puk;
> > --
> > 2.1.0
> >
> >
> 
> Being NAS commands, are these available also when not registered
> anywhere? E.g. when in low-power mode?
> I've seen people using these commands to retrieve SIM MCCMNC, but was
> never sure about them as they were NAS and not DMS.

Tried Gobi 1k and UML290; they both still return the home network when
in low-power mode.  Also, the Gobi 1k didn't have any antennas connected
and it still returned the right home network...

Dan



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