1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright (C) 2013 Tom Gundersen <teg@jklm.no>
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <sys/ioctl.h>
24 #include <linux/ethtool.h>
25 #include <linux/sockios.h>
27 #include "ethtool-util.h"
32 #include "conf-parser.h"
34 static const char* const duplex_table[] = {
39 DEFINE_STRING_TABLE_LOOKUP(duplex, Duplex);
40 DEFINE_CONFIG_PARSE_ENUM(config_parse_duplex, duplex, Duplex, "Failed to parse duplex setting");
42 static const char* const wol_table[] = {
44 [WOL_MAGIC] = "magic",
48 DEFINE_STRING_TABLE_LOOKUP(wol, WakeOnLan);
49 DEFINE_CONFIG_PARSE_ENUM(config_parse_wol, wol, WakeOnLan, "Failed to parse WakeOnLan setting");
51 int ethtool_connect(int *ret) {
54 assert_return(ret, -EINVAL);
56 fd = socket(PF_INET, SOCK_DGRAM, 0);
66 int ethtool_get_driver(int fd, const char *ifname, char **ret) {
67 struct ethtool_drvinfo ecmd = {
68 .cmd = ETHTOOL_GDRVINFO
71 .ifr_data = (void*) &ecmd
76 strscpy(ifr.ifr_name, IFNAMSIZ, ifname);
78 r = ioctl(fd, SIOCETHTOOL, &ifr);
82 d = strdup(ecmd.driver);
90 int ethtool_set_speed(int fd, const char *ifname, unsigned int speed, Duplex duplex)
93 struct ethtool_cmd ecmd;
94 bool need_update = false;
97 if (speed == 0 && duplex == _DUP_INVALID)
101 ecmd.cmd = ETHTOOL_GSET;
104 strscpy(ifr.ifr_name, IFNAMSIZ, ifname);
105 ifr.ifr_data = (void *)&ecmd;
107 r = ioctl(fd, SIOCETHTOOL, &ifr);
111 if (ethtool_cmd_speed(&ecmd) != speed) {
112 ethtool_cmd_speed_set(&ecmd, speed);
118 if (ecmd.duplex != DUPLEX_HALF) {
119 ecmd.duplex = DUPLEX_HALF;
124 if (ecmd.duplex != DUPLEX_FULL) {
125 ecmd.duplex = DUPLEX_FULL;
134 ecmd.cmd = ETHTOOL_SSET;
136 r = ioctl(fd, SIOCETHTOOL, &ifr);
144 int ethtool_set_wol(int fd, const char *ifname, WakeOnLan wol) {
146 struct ethtool_wolinfo ecmd;
147 bool need_update = false;
150 if (wol == _WOL_INVALID)
154 ecmd.cmd = ETHTOOL_GWOL;
157 strscpy(ifr.ifr_name, IFNAMSIZ, ifname);
158 ifr.ifr_data = (void *)&ecmd;
160 r = ioctl(fd, SIOCETHTOOL, &ifr);
166 if (ecmd.wolopts != WAKE_PHY) {
167 ecmd.wolopts = WAKE_PHY;
172 if (ecmd.wolopts != WAKE_MAGIC) {
173 ecmd.wolopts = WAKE_MAGIC;
178 if (ecmd.wolopts != 0) {
188 ecmd.cmd = ETHTOOL_SWOL;
190 r = ioctl(fd, SIOCETHTOOL, &ifr);