1 files changed, 79 insertions, 0 deletions
diff --git a/src/libnm-base/nm-net-aux.c b/src/libnm-base/nm-net-aux.c
new file mode 100644
index 00000000..0b6c2382
--- /dev/null
+++ b/src/libnm-base/nm-net-aux.c
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "libnm-glib-aux/nm-default-glib-i18n-lib.h"
+
+#include "nm-net-aux.h"
+
+#include <linux/rtnetlink.h>
+#include <linux/fib_rules.h>
+
+/*****************************************************************************/
+
+G_STATIC_ASSERT((int) FR_ACT_UNSPEC == RTN_UNSPEC);
+G_STATIC_ASSERT((int) FR_ACT_TO_TBL == RTN_UNICAST);
+G_STATIC_ASSERT((int) FR_ACT_GOTO == RTN_LOCAL);
+G_STATIC_ASSERT((int) FR_ACT_NOP == RTN_BROADCAST);
+G_STATIC_ASSERT((int) FR_ACT_RES3 == RTN_ANYCAST);
+G_STATIC_ASSERT((int) FR_ACT_RES4 == RTN_MULTICAST);
+G_STATIC_ASSERT((int) FR_ACT_BLACKHOLE == RTN_BLACKHOLE);
+G_STATIC_ASSERT((int) FR_ACT_UNREACHABLE == RTN_UNREACHABLE);
+G_STATIC_ASSERT((int) FR_ACT_PROHIBIT == RTN_PROHIBIT);
+
+/* see iproute2's rtnl_rtntype_a2n() */
+NM_UTILS_STRING_TABLE_LOOKUP_DEFINE(
+    nm_net_aux_rtnl_rtntype_a2n,
+    int,
+    { nm_assert(name); },
+    {
+        NM_AUTO_PROTECT_ERRNO(errsv);
+        return _nm_utils_ascii_str_to_int64(name, 0, 0, 255, -1);
+    },
+    {"anycast", RTN_ANYCAST},
+    {"blackhole", RTN_BLACKHOLE},
+    {"brd", RTN_BROADCAST},
+    {"broadcast", RTN_BROADCAST},
+    {"local", RTN_LOCAL},
+    {"multicast", RTN_MULTICAST},
+    {"nat", RTN_NAT},
+    {"prohibit", RTN_PROHIBIT},
+    {"throw", RTN_THROW},
+    {"unicast", RTN_UNICAST},
+    {"unreachable", RTN_UNREACHABLE},
+    {"xresolve", RTN_XRESOLVE}, );
+
+const char *
+nm_net_aux_rtnl_rtntype_n2a(guint8 v)
+{
+    /* see iproute2's rtnl_rtntype_n2a(). */
+
+    switch (v) {
+    case RTN_UNSPEC:
+        return "none";
+    case RTN_UNICAST:
+        return "unicast";
+    case RTN_LOCAL:
+        return "local";
+    case RTN_BROADCAST:
+        return "broadcast";
+    case RTN_ANYCAST:
+        return "anycast";
+    case RTN_MULTICAST:
+        return "multicast";
+    case RTN_BLACKHOLE:
+        return "blackhole";
+    case RTN_UNREACHABLE:
+        return "unreachable";
+    case RTN_PROHIBIT:
+        return "prohibit";
+    case RTN_THROW:
+        return "throw";
+    case RTN_NAT:
+        return "nat";
+    case RTN_XRESOLVE:
+        return "xresolve";
+    }
+
+    /* unlike the iproute2 code, this returns %NULL for unknown values.
+     * You may represent this value as "%d" integer, but do it yourself. */
+    return NULL;
+}