Merge tag 'fpga-for-v2018.11' of git://git.denx.de/u-boot-microblaze

[oweals/u-boot.git] / arch / sandbox / include / asm / eth-raw-os.h

diff --git a/arch/sandbox/include/asm/eth-raw-os.h b/arch/sandbox/include/asm/eth-raw-os.h
index ed4b2e2649942413adbb8420e0040b6607f8dd37..0b511db70c39c210076bff68ee246db406a1d948 100644 (file)
--- a/arch/sandbox/include/asm/eth-raw-os.h
+++ b/arch/sandbox/include/asm/eth-raw-os.h
@@ -1,19 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2015 National Instruments
  *
  * (C) Copyright 2015
  * Joe Hershberger <joe.hershberger@ni.com>
- *
- * SPDX-License-Identifier:    GPL-2.0
  */
 
 #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
@@ -23,14 +26,44 @@
  */
 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;
 };
 
-int sandbox_eth_raw_os_start(const char *ifname, unsigned char *ethmac,
-                           struct eth_sandbox_raw_priv *priv);
+/* 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,