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// SPDX-License-Identifier: GPL-2.0-only
// SPDX-FileCopyrightText: (c) 2022 Pengutronix,
// Oleksij Rempel <o.rempel@pengutronix.de>
#include <common.h>
#include <command.h>
#include <complete.h>
#include <environment.h>
#include <getopt.h>
#include <net.h>
static void ethlog_rx_monitor(struct eth_device *edev, void *packet,
int length)
{
dev_print_hex_dump(&edev->dev, KERN_DEBUG, "rx data <: ",
DUMP_PREFIX_OFFSET, 16, 1, packet, length, true);
printk("\n");
}
static void ethlog_tx_monitor(struct eth_device *edev, void *packet,
int length)
{
dev_print_hex_dump(&edev->dev, KERN_DEBUG, "tx data >: ",
DUMP_PREFIX_OFFSET, 16, 1, packet, length, true);
printk("\n");
}
static int do_ethlog(int argc, char *argv[])
{
struct eth_device *edev;
const char *edevname;
bool remove = false, promisc = false;
int opt, ret;
while ((opt = getopt(argc, argv, "pr")) > 0) {
switch (opt) {
case 'p':
promisc = true;
break;
case 'r':
remove = true;
break;
default:
return COMMAND_ERROR_USAGE;
}
}
if (optind == argc)
edevname = "eth0";
else
edevname = argv[optind];
edev = eth_get_byname(edevname);
if (!edev) {
printf("No such network device: %s\n", edevname);
return 1;
}
if (remove) {
edev->tx_monitor = NULL;
edev->rx_monitor = NULL;
if (promisc)
eth_set_promisc(edev, false);
return 0;
}
if (promisc) {
ret = eth_set_promisc(edev, true);
if (ret)
dev_warn(&edev->dev, "Failed to set promisc mode: %pe\n",
ERR_PTR(ret));
}
edev->tx_monitor = ethlog_tx_monitor;
edev->rx_monitor = ethlog_rx_monitor;
return 0;
}
BAREBOX_CMD_HELP_START(ethlog)
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT("-r", "remove log handler from Ethernet interface")
BAREBOX_CMD_HELP_OPT("-p", "Enable promisc mode, or disable if -r is used")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(ethlog)
.cmd = do_ethlog,
BAREBOX_CMD_DESC("ETHLOG - tool to get dump of Ethernet packets")
BAREBOX_CMD_OPTS("[-rp] [device]")
BAREBOX_CMD_GROUP(CMD_GRP_NET)
BAREBOX_CMD_COMPLETE(eth_complete)
BAREBOX_CMD_END
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