Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 45 insertions, 0 deletions

diff --git a/src/basic/arphrd-util.c b/src/basic/arphrd-util.c
new file mode 100644
index 0000000..3ea2c9d
--- /dev/null
+++ b/src/basic/arphrd-util.c
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <errno.h>
+#include <netinet/in.h>
+#include <linux/if_arp.h>
+#include <linux/if_infiniband.h>
+#include <string.h>
+
+#include "arphrd-util.h"
+#include "macro.h"
+
+static const struct arphrd_name* lookup_arphrd(register const char *str, register GPERF_LEN_TYPE len);
+
+#include "arphrd-from-name.h"
+#include "arphrd-to-name.h"
+
+int arphrd_from_name(const char *name) {
+        const struct arphrd_name *sc;
+
+        assert(name);
+
+        sc = lookup_arphrd(name, strlen(name));
+        if (!sc)
+                return -EINVAL;
+
+        return sc->id;
+}
+
+size_t arphrd_to_hw_addr_len(uint16_t arphrd) {
+        switch (arphrd) {
+        case ARPHRD_ETHER:
+                return ETH_ALEN;
+        case ARPHRD_INFINIBAND:
+                return INFINIBAND_ALEN;
+        case ARPHRD_TUNNEL:
+        case ARPHRD_SIT:
+        case ARPHRD_IPGRE:
+                return sizeof(struct in_addr);
+        case ARPHRD_TUNNEL6:
+        case ARPHRD_IP6GRE:
+                return sizeof(struct in6_addr);
+        default:
+                return 0;
+        }
+}