1 files changed, 73 insertions, 0 deletions
diff --git a/arch/sandbox/include/asm/eth-raw-os.h b/arch/sandbox/include/asm/eth-raw-os.h
new file mode 100644
index 0000000..0b511db
--- /dev/null
+++ b/arch/sandbox/include/asm/eth-raw-os.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2015 National Instruments
+ *
+ * (C) Copyright 2015
+ * Joe Hershberger <joe.hershberger@ni.com>
+ */
+
+#ifndef __ETH_RAW_OS_H
+#define __ETH_RAW_OS_H
+
+#define	IFNAMSIZ	16
+
+/**
+ * struct eth_sandbox_raw_priv - raw socket session
+ *
+ * sd: socket descriptor - the open socket during a session
+ * host_ifname: interface name on the host to use for sending our packets
+ * host_ifindex: interface index number on the host
+ * device: struct sockaddr_ll - the host interface packets move to/from
+ * local: 1 or 0 to select the local interface ('lo') or not
+ * local_bindsd: socket descriptor to prevent the kernel from sending
+ *		 a message to the server claiming the port is
+ *		 unreachable
+ * local_bind_udp_port: The UDP port number that we bound to
+ */
+struct eth_sandbox_raw_priv {
+	int sd;
+	char host_ifname[IFNAMSIZ];
+	unsigned int host_ifindex;
+	void *device;
+	int local;
+	int local_bind_sd;
+	unsigned short local_bind_udp_port;
+};
+
+/* A struct to mimic if_nameindex but that does not depend on Linux headers */
+struct sandbox_eth_raw_if_nameindex {
+	unsigned int if_index; /* Index of interface (1, 2, ...) */
+	char        *if_name;  /* Null-terminated name ("eth0", etc.) */
+};
+
+/* Enumerate host network interfaces */
+struct sandbox_eth_raw_if_nameindex *sandbox_eth_raw_if_nameindex(void);
+/* Free the data structure of enumerated network interfaces */
+void sandbox_eth_raw_if_freenameindex(struct sandbox_eth_raw_if_nameindex *ptr);
+
+/*
+ * Check if the interface named "ifname" is a localhost interface or not.
+ * ifname - the interface name on the host to check
+ *
+ * returns - 0 if real interface, 1 if local, negative if error
+ */
+int sandbox_eth_raw_os_is_local(const char *ifname);
+
+/*
+ * Look up the name of the interface based on the ifindex populated in priv.
+ *
+ * Overwrite the host_ifname member in priv based on looking up host_ifindex
+ *
+ * returns - 0 if success, negative if error
+ */
+int sandbox_eth_raw_os_idx_to_name(struct eth_sandbox_raw_priv *priv);
+
+int sandbox_eth_raw_os_start(struct eth_sandbox_raw_priv *priv,
+			     unsigned char *ethmac);
+int sandbox_eth_raw_os_send(void *packet, int length,
+			    struct eth_sandbox_raw_priv *priv);
+int sandbox_eth_raw_os_recv(void *packet, int *length,
+			    const struct eth_sandbox_raw_priv *priv);
+void sandbox_eth_raw_os_stop(struct eth_sandbox_raw_priv *priv);
+
+#endif /* __ETH_RAW_OS_H */