mirror of
https://github.com/brain-hackers/u-boot-brain
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22f68524f8
The 'lo' interface on Linux doesn't support thinks like ARP or link-layer access like we use to talk to a normal network interface. A higher-level network API must be used to access localhost. As written, this interface is limited to not supporting ICMP since the API doesn't allow the socket to be opened for all IP traffic and be able to receive at the same time. UDP is far more useful to test with, so it was selected over ICMP. Ping won't work, but things like TFTP should work. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/*
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* Copyright (c) 2015 National Instruments
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*
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* (C) Copyright 2015
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* Joe Hershberger <joe.hershberger@ni.com>
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*
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* SPDX-License-Identifier: GPL-2.0
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*/
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#ifndef __ETH_RAW_OS_H
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#define __ETH_RAW_OS_H
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/**
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* struct eth_sandbox_raw_priv - raw socket session
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*
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* sd: socket descriptor - the open socket during a session
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* device: struct sockaddr_ll - the host interface packets move to/from
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* local: 1 or 0 to select the local interface ('lo') or not
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* local_bindsd: socket descriptor to prevent the kernel from sending
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* a message to the server claiming the port is
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* unreachable
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* local_bind_udp_port: The UDP port number that we bound to
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*/
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struct eth_sandbox_raw_priv {
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int sd;
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void *device;
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int local;
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int local_bind_sd;
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unsigned short local_bind_udp_port;
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};
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int sandbox_eth_raw_os_start(const char *ifname, unsigned char *ethmac,
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struct eth_sandbox_raw_priv *priv);
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int sandbox_eth_raw_os_send(void *packet, int length,
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struct eth_sandbox_raw_priv *priv);
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int sandbox_eth_raw_os_recv(void *packet, int *length,
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const struct eth_sandbox_raw_priv *priv);
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void sandbox_eth_raw_os_stop(struct eth_sandbox_raw_priv *priv);
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#endif /* __ETH_RAW_OS_H */
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