634 lines
18 KiB
C
634 lines
18 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/* NetworkManager
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*
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* Copyright 2010 - 2017 Red Hat, Inc.
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*/
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#include "nm-default.h"
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#include "nm-meta-setting-access.h"
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/*****************************************************************************/
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static const NMMetaSettingInfoEditor *
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_get_meta_setting_info_editor_from_msi (const NMMetaSettingInfo *meta_setting_info)
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{
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const NMMetaSettingInfoEditor *setting_info;
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if (!meta_setting_info)
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return NULL;
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nm_assert (meta_setting_info->get_setting_gtype);
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nm_assert (meta_setting_info->meta_type < G_N_ELEMENTS (nm_meta_setting_infos_editor));
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setting_info = &nm_meta_setting_infos_editor[meta_setting_info->meta_type];
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nm_assert (setting_info->general == meta_setting_info);
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return setting_info;
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}
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const NMMetaSettingInfoEditor *
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nm_meta_setting_info_editor_find_by_name (const char *setting_name, gboolean use_alias)
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{
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const NMMetaSettingInfoEditor *setting_info;
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guint i;
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g_return_val_if_fail (setting_name, NULL);
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setting_info = _get_meta_setting_info_editor_from_msi (nm_meta_setting_infos_by_name (setting_name));
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if (!setting_info && use_alias) {
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for (i = 0; i < _NM_META_SETTING_TYPE_NUM; i++) {
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if (nm_streq0 (nm_meta_setting_infos_editor[i].alias, setting_name)) {
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setting_info = &nm_meta_setting_infos_editor[i];
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break;
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}
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}
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}
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return setting_info;
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}
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const NMMetaSettingInfoEditor *
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nm_meta_setting_info_editor_find_by_gtype (GType gtype)
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{
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return _get_meta_setting_info_editor_from_msi (nm_meta_setting_infos_by_gtype (gtype));
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}
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const NMMetaSettingInfoEditor *
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nm_meta_setting_info_editor_find_by_setting (NMSetting *setting)
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{
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const NMMetaSettingInfoEditor *setting_info;
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g_return_val_if_fail (NM_IS_SETTING (setting), NULL);
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setting_info = nm_meta_setting_info_editor_find_by_gtype (G_OBJECT_TYPE (setting));
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nm_assert (setting_info);
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nm_assert (G_TYPE_CHECK_INSTANCE_TYPE (setting, setting_info->general->get_setting_gtype ()));
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return setting_info;
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}
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/*****************************************************************************/
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const NMMetaPropertyInfo *
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nm_meta_setting_info_editor_get_property_info (const NMMetaSettingInfoEditor *setting_info, const char *property_name)
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{
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guint i;
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g_return_val_if_fail (setting_info, NULL);
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g_return_val_if_fail (property_name, NULL);
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for (i = 0; i < setting_info->properties_num; i++) {
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nm_assert (setting_info->properties[i]->property_name);
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nm_assert (setting_info->properties[i]->setting_info == setting_info);
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if (nm_streq (setting_info->properties[i]->property_name, property_name))
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return setting_info->properties[i];
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}
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return NULL;
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}
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gboolean
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nm_meta_setting_info_editor_has_secrets (const NMMetaSettingInfoEditor *setting_info)
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{
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guint i;
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if (!setting_info)
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return FALSE;
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for (i = 0; i < setting_info->properties_num; i++) {
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if (setting_info->properties[i]->is_secret)
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return TRUE;
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}
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return FALSE;
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}
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const NMMetaPropertyInfo *
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nm_meta_property_info_find_by_name (const char *setting_name, const char *property_name)
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{
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const NMMetaSettingInfoEditor *setting_info;
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const NMMetaPropertyInfo *property_info;
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setting_info = nm_meta_setting_info_editor_find_by_name (setting_name, FALSE);
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if (!setting_info)
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return NULL;
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property_info = nm_meta_setting_info_editor_get_property_info (setting_info, property_name);
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if (!property_info)
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return NULL;
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nm_assert (property_info->setting_info == setting_info);
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return property_info;
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}
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const NMMetaPropertyInfo *
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nm_meta_property_info_find_by_setting (NMSetting *setting, const char *property_name)
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{
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const NMMetaSettingInfoEditor *setting_info;
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const NMMetaPropertyInfo *property_info;
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setting_info = nm_meta_setting_info_editor_find_by_setting (setting);
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if (!setting_info)
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return NULL;
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property_info = nm_meta_setting_info_editor_get_property_info (setting_info, property_name);
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if (!property_info)
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return NULL;
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nm_assert (property_info->setting_info == setting_info);
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nm_assert (property_info == nm_meta_property_info_find_by_name (nm_setting_get_name (setting), property_name));
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return property_info;
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}
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NMSetting *
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nm_meta_setting_info_editor_new_setting (const NMMetaSettingInfoEditor *setting_info,
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NMMetaAccessorSettingInitType init_type)
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{
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NMSetting *setting;
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g_return_val_if_fail (setting_info, NULL);
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setting = g_object_new (setting_info->general->get_setting_gtype (), NULL);
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if ( setting_info->setting_init_fcn
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&& init_type != NM_META_ACCESSOR_SETTING_INIT_TYPE_DEFAULT) {
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setting_info->setting_init_fcn (setting_info,
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setting,
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init_type);
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}
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return setting;
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}
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/*****************************************************************************/
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const NMMetaSettingInfoEditor *const*
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nm_meta_setting_infos_editor_p (void)
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{
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static const NMMetaSettingInfoEditor *cache[_NM_META_SETTING_TYPE_NUM + 1] = { NULL };
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guint i;
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if (G_UNLIKELY (!cache[0])) {
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for (i = 0; i < _NM_META_SETTING_TYPE_NUM; i++)
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cache[i] = &nm_meta_setting_infos_editor[i];
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}
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return cache;
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}
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/*****************************************************************************/
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const char *
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nm_meta_abstract_info_get_name (const NMMetaAbstractInfo *abstract_info, gboolean for_header)
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{
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const char *n;
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nm_assert (abstract_info);
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nm_assert (abstract_info->meta_type);
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nm_assert (abstract_info->meta_type->get_name);
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n = abstract_info->meta_type->get_name (abstract_info, for_header);
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nm_assert (n && n[0]);
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return n;
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}
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const NMMetaAbstractInfo *const*
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nm_meta_abstract_info_get_nested (const NMMetaAbstractInfo *abstract_info,
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guint *out_len,
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gpointer *nested_to_free)
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{
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const NMMetaAbstractInfo *const*nested;
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guint l = 0;
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gs_free gpointer f = NULL;
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nm_assert (abstract_info);
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nm_assert (abstract_info->meta_type);
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nm_assert (nested_to_free && !*nested_to_free);
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if (abstract_info->meta_type->get_nested) {
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nested = abstract_info->meta_type->get_nested (abstract_info, &l, &f);
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nm_assert (NM_PTRARRAY_LEN (nested) == l);
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nm_assert (!f || nested == f);
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if (nested && nested[0]) {
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NM_SET_OUT (out_len, l);
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*nested_to_free = g_steal_pointer (&f);
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return nested;
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}
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}
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NM_SET_OUT (out_len, 0);
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return NULL;
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}
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gconstpointer
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nm_meta_abstract_info_get (const NMMetaAbstractInfo *abstract_info,
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const NMMetaEnvironment *environment,
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gpointer environment_user_data,
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gpointer target,
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gpointer target_data,
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NMMetaAccessorGetType get_type,
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NMMetaAccessorGetFlags get_flags,
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NMMetaAccessorGetOutFlags *out_flags,
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gboolean *out_is_default,
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gpointer *out_to_free)
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{
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nm_assert (abstract_info);
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nm_assert (abstract_info->meta_type);
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nm_assert (!out_to_free || !*out_to_free);
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nm_assert (out_flags);
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*out_flags = NM_META_ACCESSOR_GET_OUT_FLAGS_NONE;
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NM_SET_OUT (out_is_default, FALSE);
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if (!abstract_info->meta_type->get_fcn)
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g_return_val_if_reached (NULL);
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return abstract_info->meta_type->get_fcn (abstract_info,
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environment,
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environment_user_data,
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target,
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target_data,
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get_type,
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get_flags,
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out_flags,
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out_is_default,
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out_to_free);
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}
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const char *const*
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nm_meta_abstract_info_complete (const NMMetaAbstractInfo *abstract_info,
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const NMMetaEnvironment *environment,
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gpointer environment_user_data,
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const NMMetaOperationContext *operation_context,
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const char *text,
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gboolean *out_complete_filename,
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char ***out_to_free)
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{
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const char *const*values;
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gsize i, j, text_len;
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nm_assert (abstract_info);
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nm_assert (abstract_info->meta_type);
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nm_assert (out_to_free && !*out_to_free);
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*out_to_free = NULL;
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if (!abstract_info->meta_type->complete_fcn)
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return NULL;
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values = abstract_info->meta_type->complete_fcn (abstract_info,
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environment,
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environment_user_data,
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operation_context,
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text,
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out_complete_filename,
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out_to_free);
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nm_assert (!*out_to_free || values == (const char *const*) *out_to_free);
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if (!values)
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return NULL;
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if (!values[0]) {
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nm_clear_g_free (out_to_free);
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return NULL;
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}
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if (!text || !text[0])
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return values;
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/* for convenience, we allow the complete_fcn() implementations to
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* ignore "text". We filter out invalid matches here. */
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text_len = strlen (text);
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if (*out_to_free) {
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char **v = *out_to_free;
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for (i = 0, j = 0; v[i]; i++) {
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if (strncmp (v[i], text, text_len) != 0) {
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g_free (v[i]);
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continue;
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}
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v[j++] = v[i];
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}
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if (j)
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v[j++] = NULL;
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else {
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g_free (v);
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*out_to_free = v = NULL;
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}
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return (const char *const*) v;
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} else {
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const char *const*v = values;
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char **r;
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for (i = 0, j = 0; v[i]; i++) {
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if (strncmp (v[i], text, text_len) != 0)
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continue;
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j++;
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}
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if (j == i)
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return values;
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else if (!j)
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return NULL;
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r = g_new (char *, j + 1);
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v = values;
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for (i = 0, j = 0; v[i]; i++) {
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if (strncmp (v[i], text, text_len) != 0)
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continue;
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r[j++] = g_strdup (v[i]);
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}
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r[j++] = NULL;
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return (const char *const*) (*out_to_free = r);
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}
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}
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/*****************************************************************************/
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char *
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nm_meta_abstract_info_get_nested_names_str (const NMMetaAbstractInfo *abstract_info, const char *name_prefix)
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{
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gs_free gpointer nested_to_free = NULL;
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const NMMetaAbstractInfo *const*nested;
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nested = nm_meta_abstract_info_get_nested (abstract_info, NULL, &nested_to_free);
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if (!nested)
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return NULL;
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if (!name_prefix)
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name_prefix = nm_meta_abstract_info_get_name (abstract_info, FALSE);
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return nm_meta_abstract_infos_get_names_str (nested, name_prefix);
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}
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char *
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nm_meta_abstract_infos_get_names_str (const NMMetaAbstractInfo *const*fields_array, const char *name_prefix)
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{
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GString *str;
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guint i;
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if (!fields_array || !fields_array[0])
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return NULL;
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str = g_string_sized_new (128);
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for (i = 0; fields_array[i]; i++) {
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if (str->len > 0)
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g_string_append_c (str, ',');
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if (name_prefix) {
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g_string_append (str, name_prefix);
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g_string_append_c (str, '.');
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}
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g_string_append (str, nm_meta_abstract_info_get_name (fields_array[i], FALSE));
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}
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return g_string_free (str, FALSE);
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}
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/*****************************************************************************/
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typedef struct {
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guint idx;
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gsize self_offset_plus_1;
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gsize sub_offset_plus_1;
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} OutputSelectionItem;
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static NMMetaSelectionResultList *
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_output_selection_pack (const NMMetaAbstractInfo *const* fields_array,
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GArray *array,
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GString *str)
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{
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NMMetaSelectionResultList *result;
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guint i;
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guint len;
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len = array ? array->len : 0;
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/* re-organize the collected output data in one buffer that can be freed using
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* g_free(). This makes allocation more complicated, but saves us from special
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* handling for free. */
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result = g_malloc0 (sizeof (NMMetaSelectionResultList) + (len * sizeof (NMMetaSelectionItem)) + (str ? str->len : 0));
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*((guint *) &result->num) = len;
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if (len > 0) {
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char *pdata = &((char *) result)[sizeof (NMMetaSelectionResultList) + (len * sizeof (NMMetaSelectionItem))];
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if (str)
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memcpy (pdata, str->str, str->len);
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for (i = 0; i < len; i++) {
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const OutputSelectionItem *a = &g_array_index (array, OutputSelectionItem, i);
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NMMetaSelectionItem *p = (NMMetaSelectionItem *) &result->items[i];
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p->info = fields_array[a->idx];
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p->idx = a->idx;
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if (a->self_offset_plus_1 > 0)
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p->self_selection = &pdata[a->self_offset_plus_1 - 1];
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if (a->sub_offset_plus_1 > 0)
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p->sub_selection = &pdata[a->sub_offset_plus_1 - 1];
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}
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}
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return result;
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}
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static gboolean
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_output_selection_select_one (const NMMetaAbstractInfo *const* fields_array,
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const char *fields_prefix,
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const char *fields_str,
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gboolean validate_nested,
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GArray **p_array,
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GString **p_str,
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GError **error)
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{
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guint i, j;
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const char *i_name;
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const char *right;
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gboolean found = FALSE;
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const NMMetaAbstractInfo *fields_array_failure = NULL;
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gs_free char *fields_str_clone = NULL;
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nm_assert (fields_str);
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nm_assert (p_array);
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nm_assert (p_str);
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nm_assert (!error || !*error);
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right = strchr (fields_str, '.');
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if (right) {
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fields_str_clone = g_strdup (fields_str);
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fields_str_clone[right - fields_str] = '\0';
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i_name = fields_str_clone;
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right = &fields_str_clone[right - fields_str + 1];
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} else
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i_name = fields_str;
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if (!fields_array)
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goto not_found;
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for (i = 0; fields_array[i]; i++) {
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const NMMetaAbstractInfo *fi = fields_array[i];
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const NMMetaAbstractInfo *const*nested;
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gs_free gpointer nested_to_free = NULL;
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if (g_ascii_strcasecmp (i_name, nm_meta_abstract_info_get_name (fi, FALSE)) != 0)
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continue;
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if (!right || !validate_nested) {
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found = TRUE;
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break;
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}
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nested = nm_meta_abstract_info_get_nested (fi, NULL, &nested_to_free);
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if (nested) {
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for (j = 0; nested[j]; nested++) {
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if (g_ascii_strcasecmp (right, nm_meta_abstract_info_get_name (nested[j], FALSE)) == 0) {
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found = TRUE;
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break;
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}
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}
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}
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fields_array_failure = fields_array[i];
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break;
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}
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if (!found) {
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not_found:
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if ( !right
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&& !fields_prefix
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&& ( !g_ascii_strcasecmp (i_name, "all")
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|| !g_ascii_strcasecmp (i_name, "common")))
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g_set_error (error, NM_UTILS_ERROR, NM_UTILS_ERROR_UNKNOWN, _("field '%s' has to be alone"), i_name);
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else {
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gs_free char *allowed_fields = NULL;
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if (fields_array_failure) {
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gs_free char *p = NULL;
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if (fields_prefix) {
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p = g_strdup_printf ("%s.%s", fields_prefix,
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nm_meta_abstract_info_get_name (fields_array_failure, FALSE));
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}
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allowed_fields = nm_meta_abstract_info_get_nested_names_str (fields_array_failure, p);
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} else
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allowed_fields = nm_meta_abstract_infos_get_names_str (fields_array, NULL);
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g_set_error (error, NM_UTILS_ERROR, NM_UTILS_ERROR_UNKNOWN, _("invalid field '%s%s%s%s%s'; %s%s%s"),
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fields_prefix ?: "", fields_prefix ? "." : "",
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i_name, right ? "." : "", right ?: "",
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NM_PRINT_FMT_QUOTED (allowed_fields, "allowed fields: ", allowed_fields, "", "no fields"));
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}
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return FALSE;
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}
|
|
|
|
{
|
|
GString *str;
|
|
OutputSelectionItem s = {
|
|
.idx = i,
|
|
};
|
|
|
|
if (!*p_str)
|
|
*p_str = g_string_sized_new (64);
|
|
str = *p_str;
|
|
|
|
s.self_offset_plus_1 = str->len + 1;
|
|
if (fields_prefix) {
|
|
g_string_append (str, fields_prefix);
|
|
g_string_append_c (str, '.');
|
|
}
|
|
g_string_append_len (str, i_name, strlen (i_name) + 1);
|
|
|
|
if (right) {
|
|
s.sub_offset_plus_1 = str->len + 1;
|
|
g_string_append_len (str, right, strlen (right) + 1);
|
|
}
|
|
|
|
if (!*p_array)
|
|
*p_array = g_array_new (FALSE, FALSE, sizeof (OutputSelectionItem));
|
|
g_array_append_val (*p_array, s);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
NMMetaSelectionResultList *
|
|
nm_meta_selection_create_all (const NMMetaAbstractInfo *const* fields_array)
|
|
{
|
|
gs_unref_array GArray *array = NULL;
|
|
guint i;
|
|
|
|
if (fields_array) {
|
|
array = g_array_new (FALSE, FALSE, sizeof (OutputSelectionItem));
|
|
for (i = 0; fields_array[i]; i++) {
|
|
OutputSelectionItem s = {
|
|
.idx = i,
|
|
};
|
|
|
|
g_array_append_val (array, s);
|
|
}
|
|
}
|
|
|
|
return _output_selection_pack (fields_array, array, NULL);
|
|
}
|
|
|
|
NMMetaSelectionResultList *
|
|
nm_meta_selection_create_parse_one (const NMMetaAbstractInfo *const* fields_array,
|
|
const char *fields_prefix,
|
|
const char *fields_str, /* one field selector (contains no commas) and is already stripped of spaces. */
|
|
gboolean validate_nested,
|
|
GError **error)
|
|
{
|
|
gs_unref_array GArray *array = NULL;
|
|
nm_auto_free_gstring GString *str = NULL;
|
|
|
|
g_return_val_if_fail (!error || !*error, NULL);
|
|
nm_assert (fields_str && !strchr (fields_str, ','));
|
|
|
|
if (!_output_selection_select_one (fields_array,
|
|
fields_prefix,
|
|
fields_str,
|
|
validate_nested,
|
|
&array,
|
|
&str,
|
|
error))
|
|
return NULL;
|
|
return _output_selection_pack (fields_array, array, str);
|
|
|
|
}
|
|
|
|
NMMetaSelectionResultList *
|
|
nm_meta_selection_create_parse_list (const NMMetaAbstractInfo *const* fields_array,
|
|
const char *fields_str, /* a comma separated list of selectors */
|
|
gboolean validate_nested,
|
|
GError **error)
|
|
{
|
|
gs_unref_array GArray *array = NULL;
|
|
nm_auto_free_gstring GString *str = NULL;
|
|
gs_free char *fields_str_clone = NULL;
|
|
char *fields_str_cur;
|
|
char *fields_str_next;
|
|
|
|
g_return_val_if_fail (!error || !*error, NULL);
|
|
|
|
if (!fields_str)
|
|
return nm_meta_selection_create_all (fields_array);
|
|
|
|
fields_str_clone = g_strdup (fields_str);
|
|
for (fields_str_cur = fields_str_clone; fields_str_cur; fields_str_cur = fields_str_next) {
|
|
fields_str_cur = nm_str_skip_leading_spaces (fields_str_cur);
|
|
fields_str_next = strchr (fields_str_cur, ',');
|
|
if (fields_str_next)
|
|
*fields_str_next++ = '\0';
|
|
|
|
g_strchomp (fields_str_cur);
|
|
if (!fields_str_cur[0])
|
|
continue;
|
|
if (!_output_selection_select_one (fields_array,
|
|
NULL,
|
|
fields_str_cur,
|
|
validate_nested,
|
|
&array,
|
|
&str,
|
|
error))
|
|
return NULL;
|
|
}
|
|
|
|
return _output_selection_pack (fields_array, array, str);
|
|
}
|