nmcli: convert everywhere dhcp-send-hostname <-> dhcp-send-hostname-v2

Since introducing the setting ipv[46].dhcp-send-hostname-v2 internally
in NM for supporting global default behavior of DHCP send hostname,
confusion arises for setting the dhcp-send-hostname-v2 and old
dhcp-send-hostname in nmcli. To avoid any confusion from user
configuring dhcp-send-hostname-v2 and old dhcp-send-hostname using
nmcli, introduce the mapping from nmcli argument dhcp-send-hostname to
internal dhcp-send-hostname-v2 property and the mapping from nmcli
argument dhcp-send-hostname-deprecated to internal old dhcp-send-hostname
property.

The change in split_required_fields_for_con_show makes that properties
specified with -g or -f are converted to the libnm's "internal" names.

The change in _print_fill makes that the names are converted to the
"external" user facing names.

src/nmcli/connections.c

@@ -1883,8 +1883,23 @@ split_required_fields_for_con_show(const char *input,
         for (i = 0; i < _NM_META_SETTING_TYPE_NUM; i++) {
             if (is_all || is_common
                 || !g_ascii_strcasecmp(s_mutable, nm_meta_setting_infos[i].setting_name)) {
-                if (dot)
+                gs_free char *to_free = NULL;
+
+                if (dot) {
+                    /* If there was a dot we have 'setting.property'. Some properties has different
+                     * name for the user than internally in libnm and D-Bus. Make the conversion
+                     * from user names to libnm names.
+                     */
+                    const char *prop_user = dot + 1;
+                    const char *prop_libnm =
+                        nmc_setting_propname_user_to_libnm(s_mutable, prop_user);
+                    if (prop_user != prop_libnm) {
+                        to_free   = g_strdup_printf("%s.%s", s_mutable, prop_libnm);
+                        s_mutable = to_free;
+                    }
                     *dot = '.';
+                }
+
                 g_string_append(str1, s_mutable);
                 g_string_append_c(str1, ',');
                 found = TRUE;
@@ -4392,7 +4407,7 @@ set_property(NMClient              *client,
     }
 
     /* Don't ask for this property in interactive mode. */
-    disable_options(setting_name, property_name);
+    disable_options(setting_name, nmc_setting_propname_user_to_libnm(setting_name, property_name));
 
     return TRUE;
 }

src/nmcli/settings.c

@@ -525,6 +525,8 @@ get_property_val(NMSetting            *setting,
         NM_IN_SET(get_type, NM_META_ACCESSOR_GET_TYPE_PARSABLE, NM_META_ACCESSOR_GET_TYPE_PRETTY),
         NULL);
 
+    prop = nmc_setting_propname_user_to_libnm(nm_setting_get_name(setting), prop);
+
     if ((property_info = nm_meta_property_info_find_by_setting(setting, prop))) {
         if (property_info->property_type->get_fcn) {
             NMMetaAccessorGetOutFlags out_flags = NM_META_ACCESSOR_GET_OUT_FLAGS_NONE;
@@ -593,8 +595,11 @@ nmc_setting_set_property(NMClient              *client,
                                    NM_META_ACCESSOR_MODIFIER_ADD),
                          FALSE);
 
+    prop = nmc_setting_propname_user_to_libnm(nm_setting_get_name(setting), prop);
+
     if (!(property_info = nm_meta_property_info_find_by_setting(setting, prop)))
         goto out_fail_read_only;
+
     if (!property_info->property_type->set_fcn)
         goto out_fail_read_only;
 
@@ -661,8 +666,12 @@ nmc_setting_get_valid_properties(NMSetting *setting)
     num = setting_info ? setting_info->properties_num : 0;
 
     valid_props = g_new(char *, num + 1);
-    for (i = 0; i < num; i++)
-        valid_props[i] = g_strdup(setting_info->properties[i]->property_name);
+    for (i = 0; i < num; i++) {
+        const char *prop =
+            nmc_setting_propname_libnm_to_user(setting_info->general->setting_name,
+                                               setting_info->properties[i]->property_name);
+        valid_props[i] = g_strdup(prop);
+    }
 
     valid_props[num] = NULL;
     return valid_props;
@@ -678,6 +687,8 @@ nmc_setting_get_property_allowed_values(NMSetting *setting, const char *prop, ch
 
     *out_to_free = NULL;
 
+    prop = nmc_setting_propname_user_to_libnm(nm_setting_get_name(setting), prop);
+
     if ((property_info = nm_meta_property_info_find_by_setting(setting, prop))) {
         if (property_info->property_type->values_fcn) {
             return property_info->property_type->values_fcn(property_info, out_to_free);
@@ -711,6 +722,8 @@ nmc_setting_get_property_desc(NMSetting *setting, const char *prop)
 
     g_return_val_if_fail(NM_IS_SETTING(setting), FALSE);
 
+    prop = nmc_setting_propname_user_to_libnm(nm_setting_get_name(setting), prop);
+
     property_info = nm_meta_property_info_find_by_setting(setting, prop);
     if (!property_info)
         return NULL;
@@ -774,3 +787,33 @@ setting_details(const NmcConfig *nmc_config, NMSetting *setting, const char *one
 
     return TRUE;
 }
+
+const char *
+nmc_setting_propname_user_to_libnm(const char *setting_name, const char *prop)
+{
+    if (NM_IN_STRSET(setting_name,
+                     NM_SETTING_IP4_CONFIG_SETTING_NAME,
+                     NM_SETTING_IP6_CONFIG_SETTING_NAME)) {
+        if (nm_streq0(prop, "dhcp-send-hostname"))
+            return NM_SETTING_IP_CONFIG_DHCP_SEND_HOSTNAME_V2;
+        else if (nm_streq0(prop, "dhcp-send-hostname-deprecated"))
+            return NM_SETTING_IP_CONFIG_DHCP_SEND_HOSTNAME;
+    }
+
+    return prop;
+}
+
+const char *
+nmc_setting_propname_libnm_to_user(const char *setting_name, const char *prop)
+{
+    if (NM_IN_STRSET(setting_name,
+                     NM_SETTING_IP4_CONFIG_SETTING_NAME,
+                     NM_SETTING_IP6_CONFIG_SETTING_NAME)) {
+        if (nm_streq0(prop, NM_SETTING_IP_CONFIG_DHCP_SEND_HOSTNAME_V2))
+            return "dhcp-send-hostname";
+        else if (nm_streq0(prop, NM_SETTING_IP_CONFIG_DHCP_SEND_HOSTNAME))
+            return "dhcp-send-hostname-deprecated";
+    }
+
+    return prop;
+}

src/nmcli/settings.h

@@ -34,4 +34,7 @@ gboolean nmc_setting_set_property(NMClient              *client,
 
 gboolean setting_details(const NmcConfig *nmc_config, NMSetting *setting, const char *one_prop);
 
+const char *nmc_setting_propname_user_to_libnm(const char *setting_name, const char *prop);
+const char *nmc_setting_propname_libnm_to_user(const char *setting_name, const char *prop);
+
 #endif /* NMC_SETTINGS_H */

src/nmcli/utils.c

@@ -1016,6 +1016,8 @@ _print_fill(const NmcConfig    *nmc_config,
         PrintDataHeaderCell      *header_cell;
         guint                     col_idx;
         const NMMetaAbstractInfo *info;
+        const char               *setting_name;
+        gboolean                  is_prop;
 
         col = &cols[i_col];
         if (!col->is_leaf)
@@ -1036,14 +1038,23 @@ _print_fill(const NmcConfig    *nmc_config,
         header_cell->to_print = FALSE;
 
         header_cell->title = nm_meta_abstract_info_get_name(info, TRUE);
-        if (nmc_config->multiline_output && col->parent_col
-            && NM_IN_SET(info->meta_type,
-                         &nm_meta_type_property_info,
-                         &nmc_meta_type_generic_info)) {
-            header_cell->title = g_strdup_printf(
-                "%s.%s",
-                nm_meta_abstract_info_get_name(col->parent_col->selection_item->info, FALSE),
-                header_cell->title);
+
+        is_prop =
+            col->parent_col
+            && NM_IN_SET(info->meta_type, &nm_meta_type_property_info, &nmc_meta_type_generic_info);
+
+        if (is_prop) {
+            /* Some properties has different name for the user than internally in
+             * libnm and D-Bus. Make the conversion from libnm names to user names.
+             */
+            setting_name =
+                nm_meta_abstract_info_get_name(col->parent_col->selection_item->info, FALSE);
+            header_cell->title =
+                nmc_setting_propname_libnm_to_user(setting_name, header_cell->title);
+        }
+
+        if (nmc_config->multiline_output && is_prop) {
+            header_cell->title         = g_strdup_printf("%s.%s", setting_name, header_cell->title);
             header_cell->title_to_free = TRUE;
         }
     }