1 files changed, 57 insertions, 0 deletions
diff --git a/src/include/if_ether.h b/src/include/if_ether.h
new file mode 100644
index 0000000..a71bd21
--- /dev/null
+++ b/src/include/if_ether.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef IF_ETHER_H
+#define IF_ETHER_H
+
+#include <stdint.h>
+
+#define HW_ADDR_LEN 6
+#define PROTO_IPV4 0x0800
+#define PROTO_ARP 0x0806
+
+typedef uint64_t mac_addr_t;
+
+struct ether_hdr {
+    uint8_t dest[HW_ADDR_LEN];
+    uint8_t source[HW_ADDR_LEN];
+    uint16_t proto;
+} __attribute__((packed));
+
+/*
+ * Load the source and dest routes into an ethernet
+ * frame.
+ *
+ * @src: Source address to use
+ * @dest: Dest address to use
+ * @res: Result is written here
+ */
+int ether_load_route(mac_addr_t src, mac_addr_t dest, struct ether_hdr *res);
+
+#endif  /* !IF_ETHER_H */