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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <command.h>
#include <common.h>
#include <getopt.h>
#include <complete.h>
#include <environment.h>
#include <net.h>
static int do_ip_route_get(int argc, char *argv[])
{
struct eth_device *edev;
IPaddr_t ip, gw = 0;
const char *variable = NULL;
int opt, ret;
bool bootarg = false;
while ((opt = getopt(argc, argv, "b")) > 0) {
switch (opt) {
case 'b':
bootarg = true;
break;
default:
return COMMAND_ERROR_USAGE;
}
}
if (argc == optind)
return COMMAND_ERROR_USAGE;
if (argc == optind + 2)
variable = argv[optind + 1];
ret = string_to_ip(argv[optind], &ip);
if (ret) {
printf("Cannot convert %s into a IP address: %s\n",
argv[1], strerror(-ret));
return 1;
}
edev = net_route(ip);
if (!edev) {
gw = net_get_gateway();
if (gw)
edev = net_route(gw);
}
if (!edev) {
printf("IP %pI4 is not reachable\n", &ip);
return 1;
}
if (variable) {
if (bootarg)
setenv(variable, edev->bootarg);
else
setenv(variable, edev->devname);
return 0;
}
if (bootarg) {
printf("%s\n", edev->bootarg);
} else {
if (gw)
printf("%pI4 via %pI4 dev %s\n", &ip, &gw,
edev->devname);
else
printf("%pI4 dev %s\n", &ip, edev->devname);
}
return 0;
}
BAREBOX_CMD_HELP_START(ip_route_get)
BAREBOX_CMD_HELP_TEXT("get ethernet device used to reach given IP address")
BAREBOX_CMD_HELP_TEXT("")
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT("-b", "Instead of ethernet device, show linux bootargs for that device")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(ip_route_get)
.cmd = do_ip_route_get,
BAREBOX_CMD_DESC("get ethernet device name for an IP address")
BAREBOX_CMD_OPTS("[-b] <IP> [variable]")
BAREBOX_CMD_GROUP(CMD_GRP_MISC)
BAREBOX_CMD_COMPLETE(empty_complete)
BAREBOX_CMD_END
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