libmm-glib: new helper to handle the 5GNR registration settings

1 files changed, 335 insertions, 0 deletions

diff --git a/libmm-glib/mm-nr5g-registration-settings.c b/libmm-glib/mm-nr5g-registration-settings.c
new file mode 100644
index 00000000..94fc7825
--- /dev/null
+++ b/libmm-glib/mm-nr5g-registration-settings.c
@@ -0,0 +1,335 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * libmm-glib -- Access modem status & information from glib applications
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ * Copyright (C) 2021 Aleksander Morgado <aleksander@aleksander.es>
+ */
+
+#include <string.h>
+
+#include "mm-errors-types.h"
+#include "mm-common-helpers.h"
+#include "mm-nr5g-registration-settings.h"
+
+/**
+ * SECTION: mm-nr5g-registration-settings
+ * @title: MMNr5gRegistrationSettings
+ * @short_description: Helper object to handle 5GNR registration settings.
+ *
+ * The #MMNr5gRegistrationSettings is an object handling the settings used
+ * to configure the 5G registration process.
+ */
+
+G_DEFINE_TYPE (MMNr5gRegistrationSettings, mm_nr5g_registration_settings, G_TYPE_OBJECT)
+
+#define PROPERTY_MICO_MODE "mico-mode"
+#define PROPERTY_DRX_CYCLE "drx-cycle"
+
+struct _MMNr5gRegistrationSettingsPrivate {
+    MMModem3gppMicoMode mico_mode;
+    MMModem3gppDrxCycle drx_cycle;
+};
+
+/*****************************************************************************/
+
+/**
+ * mm_nr5g_registration_settings_set_mico_mode:
+ * @self: a #MMNr5gRegistrationSettings.
+ * @mico_mode: a #MMModem3gppMicoMode.
+ *
+ * Sets the MICO mode configuration.
+ *
+ * Since: 1.20
+ */
+void
+mm_nr5g_registration_settings_set_mico_mode (MMNr5gRegistrationSettings *self,
+                                             MMModem3gppMicoMode         mico_mode)
+{
+    g_return_if_fail (MM_IS_NR5G_REGISTRATION_SETTINGS (self));
+
+    self->priv->mico_mode = mico_mode;
+}
+
+/**
+ * mm_nr5g_registration_settings_get_mico_mode:
+ * @self: a #MMNr5gRegistrationSettings.
+ *
+ * Gets the MICO mode configuration.
+ *
+ * Returns: a #MMModem3gppMicoMode.
+ *
+ * Since: 1.20
+ */
+MMModem3gppMicoMode
+mm_nr5g_registration_settings_get_mico_mode (MMNr5gRegistrationSettings *self)
+{
+    g_return_val_if_fail (MM_IS_NR5G_REGISTRATION_SETTINGS (self), MM_MODEM_3GPP_MICO_MODE_UNKNOWN);
+
+    return self->priv->mico_mode;
+}
+
+/*****************************************************************************/
+
+/**
+ * mm_nr5g_registration_settings_set_drx_cycle:
+ * @self: a #MMNr5gRegistrationSettings.
+ * @drx_cycle: a #MMModem3gppDrxCycle.
+ *
+ * Sets the MICO mode configuration.
+ *
+ * Since: 1.20
+ */
+void
+mm_nr5g_registration_settings_set_drx_cycle (MMNr5gRegistrationSettings *self,
+                                             MMModem3gppDrxCycle         drx_cycle)
+{
+    g_return_if_fail (MM_IS_NR5G_REGISTRATION_SETTINGS (self));
+
+    self->priv->drx_cycle = drx_cycle;
+}
+
+/**
+ * mm_nr5g_registration_settings_get_drx_cycle:
+ * @self: a #MMNr5gRegistrationSettings.
+ *
+ * Gets the MICO mode configuration.
+ *
+ * Returns: a #MMModem3gppDrxCycle.
+ *
+ * Since: 1.20
+ */
+MMModem3gppDrxCycle
+mm_nr5g_registration_settings_get_drx_cycle (MMNr5gRegistrationSettings *self)
+{
+    g_return_val_if_fail (MM_IS_NR5G_REGISTRATION_SETTINGS (self), MM_MODEM_3GPP_DRX_CYCLE_UNKNOWN);
+
+    return self->priv->drx_cycle;
+}
+
+/*****************************************************************************/
+
+static gboolean
+consume_string (MMNr5gRegistrationSettings  *self,
+                const gchar                 *key,
+                const gchar                 *value,
+                GError                     **error)
+{
+    GError *inner_error = NULL;
+
+    if (g_str_equal (key, PROPERTY_MICO_MODE)) {
+        MMModem3gppMicoMode mico_mode;
+
+        mico_mode = mm_common_get_3gpp_mico_mode_from_string (value, &inner_error);
+        if (!inner_error)
+            mm_nr5g_registration_settings_set_mico_mode (self, mico_mode);
+    } else if (g_str_equal (key, PROPERTY_DRX_CYCLE)) {
+        MMModem3gppDrxCycle drx_cycle;
+
+        drx_cycle = mm_common_get_3gpp_drx_cycle_from_string (value, &inner_error);
+        if (!inner_error)
+            mm_nr5g_registration_settings_set_drx_cycle (self, drx_cycle);
+    } else {
+        inner_error = g_error_new (MM_CORE_ERROR, MM_CORE_ERROR_UNSUPPORTED,
+                                   "Invalid properties string, unsupported key '%s'", key);
+    }
+
+    if (inner_error) {
+        g_propagate_error (error, inner_error);
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+typedef struct {
+    MMNr5gRegistrationSettings *settings;
+    GError                     *error;
+} ParseKeyValueContext;
+
+static gboolean
+key_value_foreach (const gchar          *key,
+                   const gchar          *value,
+                   ParseKeyValueContext *ctx)
+{
+    return consume_string (ctx->settings, key, value, &ctx->error);
+}
+
+/**
+ * mm_nr5g_registration_settings_new_from_string: (skip)
+ */
+MMNr5gRegistrationSettings *
+mm_nr5g_registration_settings_new_from_string (const gchar  *str,
+                                               GError      **error)
+{
+    ParseKeyValueContext ctx;
+
+    ctx.error = NULL;
+    ctx.settings = mm_nr5g_registration_settings_new ();
+
+    mm_common_parse_key_value_string (str,
+                                      &ctx.error,
+                                      (MMParseKeyValueForeachFn)key_value_foreach,
+                                      &ctx);
+
+    /* If error, destroy the object */
+    if (ctx.error) {
+        g_propagate_error (error, ctx.error);
+        g_clear_object (&ctx.settings);
+    }
+
+    return ctx.settings;
+}
+
+/*****************************************************************************/
+
+/**
+ * mm_nr5g_registration_settings_get_dictionary: (skip)
+ */
+GVariant *
+mm_nr5g_registration_settings_get_dictionary (MMNr5gRegistrationSettings *self)
+{
+    GVariantBuilder builder;
+
+    /* We do allow NULL */
+    if (!self)
+        return NULL;
+
+    g_return_val_if_fail (MM_IS_NR5G_REGISTRATION_SETTINGS (self), NULL);
+
+    g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));
+
+    if (self->priv->mico_mode != MM_MODEM_3GPP_MICO_MODE_UNKNOWN)
+        g_variant_builder_add (&builder,
+                               "{sv}",
+                               PROPERTY_MICO_MODE,
+                               g_variant_new_uint32 (self->priv->mico_mode));
+    if (self->priv->drx_cycle != MM_MODEM_3GPP_DRX_CYCLE_UNKNOWN)
+        g_variant_builder_add (&builder,
+                               "{sv}",
+                               PROPERTY_DRX_CYCLE,
+                               g_variant_new_uint32 (self->priv->drx_cycle));
+
+    return g_variant_ref_sink (g_variant_builder_end (&builder));
+}
+
+/*****************************************************************************/
+
+static gboolean
+consume_variant (MMNr5gRegistrationSettings  *self,
+                 const gchar                 *key,
+                 GVariant                    *value,
+                 GError                     **error)
+{
+    if (g_str_equal (key, PROPERTY_MICO_MODE))
+        self->priv->mico_mode = g_variant_get_uint32 (value);
+    else if (g_str_equal (key, PROPERTY_DRX_CYCLE))
+        self->priv->drx_cycle = g_variant_get_uint32 (value);
+    else {
+        g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_INVALID_ARGS,
+                     "Invalid settings dictionary, unexpected key '%s'", key);
+        return FALSE;
+    }
+    return TRUE;
+}
+
+/**
+ * mm_nr5g_registration_settings_new_from_dictionary: (skip)
+ */
+MMNr5gRegistrationSettings *
+mm_nr5g_registration_settings_new_from_dictionary (GVariant  *dictionary,
+                                                   GError   **error)
+{
+    g_autoptr(MMNr5gRegistrationSettings) self = NULL;
+    GVariantIter  iter;
+    gchar        *key;
+    GVariant     *value;
+    GError       *inner_error = NULL;
+
+    self = mm_nr5g_registration_settings_new ();
+    if (!dictionary)
+        return g_steal_pointer (&self);
+
+    if (!g_variant_is_of_type (dictionary, G_VARIANT_TYPE ("a{sv}"))) {
+        g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_INVALID_ARGS,
+                     "Invalid input type");
+        return NULL;
+    }
+
+    g_variant_iter_init (&iter, dictionary);
+    while (!inner_error && g_variant_iter_next (&iter, "{sv}", &key, &value)) {
+        consume_variant (self, key, value, &inner_error);
+        g_free (key);
+        g_variant_unref (value);
+    }
+
+    if (inner_error) {
+        g_propagate_error (error, inner_error);
+        return NULL;
+    }
+
+    return g_steal_pointer (&self);
+}
+
+/*****************************************************************************/
+
+/**
+ * mm_nr5g_registration_settings_cmp: (skip)
+ */
+gboolean
+mm_nr5g_registration_settings_cmp (MMNr5gRegistrationSettings *a,
+                                   MMNr5gRegistrationSettings *b)
+{
+    if (a->priv->mico_mode != b->priv->mico_mode)
+        return FALSE;
+    if (a->priv->drx_cycle != b->priv->drx_cycle)
+        return FALSE;
+    return TRUE;
+}
+
+/*****************************************************************************/
+
+/**
+ * mm_nr5g_registration_settings_new:
+ *
+ * Creates a new empty #MMNr5gRegistrationSettings.
+ *
+ * Returns: (transfer full): a #MMNr5gRegistrationSettings. The returned value should be freed with g_object_unref().
+ *
+ * Since: 1.20
+ */
+MMNr5gRegistrationSettings *
+mm_nr5g_registration_settings_new (void)
+{
+    return MM_NR5G_REGISTRATION_SETTINGS (g_object_new (MM_TYPE_NR5G_REGISTRATION_SETTINGS, NULL));
+}
+
+static void
+mm_nr5g_registration_settings_init (MMNr5gRegistrationSettings *self)
+{
+    self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, MM_TYPE_NR5G_REGISTRATION_SETTINGS, MMNr5gRegistrationSettingsPrivate);
+    self->priv->mico_mode = MM_MODEM_3GPP_MICO_MODE_UNKNOWN;
+    self->priv->drx_cycle = MM_MODEM_3GPP_DRX_CYCLE_UNKNOWN;
+}
+
+static void
+mm_nr5g_registration_settings_class_init (MMNr5gRegistrationSettingsClass *klass)
+{
+    GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+    g_type_class_add_private (object_class, sizeof (MMNr5gRegistrationSettingsPrivate));
+}