From 294b585994da4427ac98a8353ff41aed5f301d54 Mon Sep 17 00:00:00 2001
From: pk33 <pk33@pk33.space>
Date: Fri, 1 Nov 2024 23:51:15 +0100
Subject: Import and fix old code

---
 include/musl/net/ethernet.h | 55 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 include/musl/net/ethernet.h

(limited to 'include/musl/net/ethernet.h')

diff --git a/include/musl/net/ethernet.h b/include/musl/net/ethernet.h
new file mode 100644
index 0000000..c8d4177
--- /dev/null
+++ b/include/musl/net/ethernet.h
@@ -0,0 +1,55 @@
+#ifndef _NET_ETHERNET_H
+#define _NET_ETHERNET_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <netinet/if_ether.h>
+
+struct ether_addr {
+	uint8_t ether_addr_octet[ETH_ALEN];
+};
+
+struct ether_header {
+	uint8_t  ether_dhost[ETH_ALEN];
+	uint8_t  ether_shost[ETH_ALEN];
+	uint16_t ether_type;
+};
+
+#define	ETHERTYPE_PUP		0x0200
+#define ETHERTYPE_SPRITE	0x0500
+#define	ETHERTYPE_IP		0x0800
+#define	ETHERTYPE_ARP		0x0806
+#define	ETHERTYPE_REVARP	0x8035
+#define ETHERTYPE_AT		0x809B
+#define ETHERTYPE_AARP		0x80F3
+#define	ETHERTYPE_VLAN		0x8100
+#define ETHERTYPE_IPX		0x8137
+#define	ETHERTYPE_IPV6		0x86dd
+#define ETHERTYPE_LOOPBACK	0x9000
+
+
+#define	ETHER_ADDR_LEN	ETH_ALEN
+#define	ETHER_TYPE_LEN	2
+#define	ETHER_CRC_LEN	4
+#define	ETHER_HDR_LEN	ETH_HLEN
+#define	ETHER_MIN_LEN	(ETH_ZLEN + ETHER_CRC_LEN)
+#define	ETHER_MAX_LEN	(ETH_FRAME_LEN + ETHER_CRC_LEN)
+
+#define	ETHER_IS_VALID_LEN(foo)	\
+	((foo) >= ETHER_MIN_LEN && (foo) <= ETHER_MAX_LEN)
+
+#define	ETHERTYPE_TRAIL		0x1000
+#define	ETHERTYPE_NTRAILER	16
+
+#define	ETHERMTU	ETH_DATA_LEN
+#define	ETHERMIN	(ETHER_MIN_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
-- 
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