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core/setting: rework nm_connection_dump()

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Utilize _nm_setting_to_dbus() to serialize the setting. The main reason
is that this way we can also print the more complicated values
g_strdup_value_contents() can't grok, e.g. the GArrays and GHashTables.

Some effort was spent on tidying up the results in a manner it was done
previously, instead of reducing this to a plain g_variant_print(). It
looks good that way:

Before:

  vpn
    service-type : "org.freedesktop.NetworkManager.VPN.Novpn" (s)
    user-name : NULL (sd)
    persistent : FALSE (sd)
    data : ((GHashTable*) 0xc61060) (s)
    secrets : ((GHashTable*) 0xdda640) (s)
    timeout : 0 (sd)

After:

  vpn
    service-type : 'org.freedesktop.NetworkManager.VPN.Novpn'
    data : {'gateway': 'novpn.example.com', 'username': 'hello'}
    secrets : {'password': 'world'}

Note that no effort was spent on printing the defaults. There are
multiple ways that could be achieved, but I'm not sure it would be all
that necessary given this is really just a quick'n'dirty debugging facilty.
This commit is contained in:
Lubomir Rintel 2018-07-26 11:59:24 +02:00
parent e0a93ac1e5
commit f957ea2b34
2 changed files with 21 additions and 39 deletions
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7
libnm-core/nm-connection.c
View file

@ -1995,9 +1995,10 @@ nm_connection_for_each_setting_value (NMConnection *connection,
* nm_connection_dump:
* @connection: the #NMConnection
*
* Print the connection to stdout. For debugging purposes ONLY, should NOT
* be used for serialization of the connection or machine-parsed in any way. The
* output format is not guaranteed to be stable and may change at any time.
* Print the connection (including secrets!) to stdout. For debugging
* purposes ONLY, should NOT be used for serialization of the setting,
* or machine-parsed in any way. The output format is not guaranteed to
* be stable and may change at any time.
**/
void
nm_connection_dump (NMConnection *connection)

53
libnm-core/nm-setting.c
View file

@ -1969,59 +1969,40 @@ nm_setting_set_secret_flags (NMSetting *setting,
* nm_setting_to_string:
* @setting: the #NMSetting
*
* Convert the setting into a string. For debugging purposes ONLY, should NOT
* be used for serialization of the setting, or machine-parsed in any way. The
* output format is not guaranteed to be stable and may change at any time.
* Convert the setting (including secrets!) into a string. For debugging
* purposes ONLY, should NOT be used for serialization of the setting,
* or machine-parsed in any way. The output format is not guaranteed to
* be stable and may change at any time.
*
* Returns: an allocated string containing a textual representation of the
* setting's properties and values (including secrets!), which the caller should
* setting's properties and values, which the caller should
* free with g_free()
**/
char *
nm_setting_to_string (NMSetting *setting)
{
GString *string;
GParamSpec **property_specs;
guint n_property_specs;
guint i;
g_return_val_if_fail (NM_IS_SETTING (setting), NULL);
property_specs = g_object_class_list_properties (G_OBJECT_GET_CLASS (setting), &n_property_specs);
gs_unref_variant GVariant *variant;
GVariant *child;
GVariantIter iter;
string = g_string_new (nm_setting_get_name (setting));
g_string_append_c (string, '\n');
for (i = 0; i < n_property_specs; i++) {
GParamSpec *prop_spec = property_specs[i];
GValue value = G_VALUE_INIT;
char *value_str;
gboolean is_default;
variant = _nm_setting_to_dbus (setting, NULL, NM_CONNECTION_SERIALIZE_ALL);
if (strcmp (prop_spec->name, NM_SETTING_NAME) == 0)
continue;
g_variant_iter_init (&iter, variant);
while ((child = g_variant_iter_next_value (&iter))) {
gs_free char *name;
gs_free char *value_str;
gs_unref_variant GVariant *value;
g_value_init (&value, prop_spec->value_type);
g_object_get_property (G_OBJECT (setting), prop_spec->name, &value);
g_variant_get (child, "{sv}", &name, &value);
value_str = g_variant_print (value, FALSE);
value_str = g_strdup_value_contents (&value);
g_string_append_printf (string, "\t%s : %s", prop_spec->name, value_str);
g_free (value_str);
is_default = g_param_value_defaults (prop_spec, &value);
g_value_unset (&value);
g_string_append (string, " (");
g_string_append_c (string, 's');
if (is_default)
g_string_append_c (string, 'd');
g_string_append_c (string, ')');
g_string_append_c (string, '\n');
g_string_append_printf (string, "\t%s : %s\n", name, value_str);
}
g_free (property_specs);
g_string_append_c (string, '\n');
return g_string_free (string, FALSE);
}