network: Introduce geneve util

src/shared/geneve-util.c

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include "geneve-util.h"
+#include "string-table.h"
+
+static const char* const geneve_df_table[_NETDEV_GENEVE_DF_MAX] = {
+        [NETDEV_GENEVE_DF_UNSET]   = "unset",
+        [NETDEV_GENEVE_DF_SET]     = "set",
+        [NETDEV_GENEVE_DF_INHERIT] = "inherit",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(geneve_df, GeneveDF);

src/shared/geneve-util.h

@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+#pragma once
+
+#include <linux/if_link.h>
+
+#include "conf-parser.h"
+
+typedef enum GeneveDF {
+        NETDEV_GENEVE_DF_UNSET    = GENEVE_DF_UNSET,
+        NETDEV_GENEVE_DF_SET      = GENEVE_DF_SET,
+        NETDEV_GENEVE_DF_INHERIT  = GENEVE_DF_INHERIT,
+        _NETDEV_GENEVE_DF_MAX,
+        _NETDEV_GENEVE_DF_INVALID = -1,
+} GeneveDF;
+
+const char *geneve_df_to_string(GeneveDF d) _const_;
+GeneveDF geneve_df_from_string(const char *d) _pure_;

src/shared/meson.build

@@ -87,6 +87,8 @@ shared_sources = files('''
         fstab-util.h
         generator.c
         generator.h
+        geneve-util.c
+        geneve-util.h
         gpt.c
         gpt.h
         group-record-nss.c