120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
|
/*
|
||
|
|
* ethtool.c - setting of basic ethtool options
|
||
|
|
*
|
||
|
|
* Copyright (C) 2003 Red Hat, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* 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; either version 2 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*
|
||
|
|
* Author(s): Jeremy Katz <katzj@redhat.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <errno.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#include <sys/ioctl.h>
|
||
|
|
#include <sys/socket.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <net/if.h>
|
||
|
|
|
||
|
|
#include <linux/sockios.h>
|
||
|
|
#include "ethtool.h"
|
||
|
|
|
||
|
|
static int set_intf_up(struct ifreq ifr, int sock) {
|
||
|
|
if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
|
||
|
|
return (-1);
|
||
|
|
}
|
||
|
|
ifr.ifr_flags |= (IFF_UP | IFF_RUNNING);
|
||
|
|
if (ioctl(sock, SIOCSIFFLAGS, &ifr) < 0) {
|
||
|
|
fprintf(stderr, "failed to bring up interface %s: %s", ifr.ifr_name,
|
||
|
|
strerror(errno));
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
int setEthtoolSettings(char * dev, ethtool_speed speed,
|
||
|
|
ethtool_duplex duplex) {
|
||
|
|
int sock, err;
|
||
|
|
struct ethtool_cmd ecmd;
|
||
|
|
struct ifreq ifr;
|
||
|
|
|
||
|
|
if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
|
||
|
|
perror("Unable to create socket");
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Setup our control structures. */
|
||
|
|
memset(&ifr, 0, sizeof(ifr));
|
||
|
|
strcpy(ifr.ifr_name, dev);
|
||
|
|
|
||
|
|
if (set_intf_up(ifr, sock) == -1) {
|
||
|
|
fprintf(stderr, "unable to bring up interface %s: %s", dev,
|
||
|
|
strerror(errno));
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
ecmd.cmd = ETHTOOL_GSET;
|
||
|
|
ifr.ifr_data = (caddr_t)&ecmd;
|
||
|
|
err = ioctl(sock, SIOCETHTOOL, &ifr);
|
||
|
|
if (err < 0) {
|
||
|
|
perror("Unable to get settings via ethtool. Not setting");
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (speed != ETHTOOL_SPEED_UNSPEC)
|
||
|
|
ecmd.speed = speed;
|
||
|
|
if (duplex != ETHTOOL_DUPLEX_UNSPEC)
|
||
|
|
ecmd.duplex = duplex;
|
||
|
|
if ((duplex != ETHTOOL_DUPLEX_UNSPEC) || (speed != ETHTOOL_SPEED_UNSPEC))
|
||
|
|
ecmd.autoneg = AUTONEG_DISABLE;
|
||
|
|
|
||
|
|
ecmd.cmd = ETHTOOL_SSET;
|
||
|
|
ifr.ifr_data = (caddr_t)&ecmd;
|
||
|
|
err = ioctl(sock, SIOCETHTOOL, &ifr);
|
||
|
|
if (err < 0) {
|
||
|
|
// perror("Unable to set settings via ethtool. Not setting");
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int identifyNIC(char *iface, int seconds) {
|
||
|
|
int sock;
|
||
|
|
struct ethtool_value edata;
|
||
|
|
struct ifreq ifr;
|
||
|
|
|
||
|
|
if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
|
||
|
|
perror("Unable to create socket");
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
memset(&ifr, 0, sizeof(ifr));
|
||
|
|
memset(&edata, 0, sizeof(edata));
|
||
|
|
|
||
|
|
strcpy(ifr.ifr_name, iface);
|
||
|
|
edata.cmd = ETHTOOL_PHYS_ID;
|
||
|
|
edata.data = seconds;
|
||
|
|
ifr.ifr_data = (caddr_t) &edata;
|
||
|
|
|
||
|
|
if (ioctl(sock, SIOCETHTOOL, &ifr) < 0) {
|
||
|
|
perror("Unable to identify NIC");
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|