1*9c5db199SXin Li /*
2*9c5db199SXin Li * Copyright 2007, Intel Corporation
3*9c5db199SXin Li *
4*9c5db199SXin Li * This file is part of PowerTOP
5*9c5db199SXin Li *
6*9c5db199SXin Li * This program file is free software; you can redistribute it and/or modify it
7*9c5db199SXin Li * under the terms of the GNU General Public License as published by the
8*9c5db199SXin Li * Free Software Foundation; version 2 of the License.
9*9c5db199SXin Li *
10*9c5db199SXin Li * This program is distributed in the hope that it will be useful, but WITHOUT
11*9c5db199SXin Li * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12*9c5db199SXin Li * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13*9c5db199SXin Li * for more details.
14*9c5db199SXin Li *
15*9c5db199SXin Li * You should have received a copy of the GNU General Public License
16*9c5db199SXin Li * along with this program in a file named COPYING; if not, write to the
17*9c5db199SXin Li * Free Software Foundation, Inc.,
18*9c5db199SXin Li * 51 Franklin Street, Fifth Floor,
19*9c5db199SXin Li * Boston, MA 02110-1301 USA
20*9c5db199SXin Li *
21*9c5db199SXin Li * Authors:
22*9c5db199SXin Li * Arjan van de Ven <[email protected]>
23*9c5db199SXin Li */
24*9c5db199SXin Li
25*9c5db199SXin Li #include <unistd.h>
26*9c5db199SXin Li #include <stdio.h>
27*9c5db199SXin Li #include <stdlib.h>
28*9c5db199SXin Li #include <string.h>
29*9c5db199SXin Li #include <stdint.h>
30*9c5db199SXin Li #include <sys/types.h>
31*9c5db199SXin Li #include <dirent.h>
32*9c5db199SXin Li #include <linux/types.h>
33*9c5db199SXin Li #include <net/if.h>
34*9c5db199SXin Li #include <linux/sockios.h>
35*9c5db199SXin Li #include <sys/ioctl.h>
36*9c5db199SXin Li
37*9c5db199SXin Li /* work around a bug in debian -- it exposes kernel internal types to userspace */
38*9c5db199SXin Li #define u64 __u64
39*9c5db199SXin Li #define u32 __u32
40*9c5db199SXin Li #define u16 __u16
41*9c5db199SXin Li #define u8 __u8
42*9c5db199SXin Li #include <linux/ethtool.h>
43*9c5db199SXin Li #undef u64
44*9c5db199SXin Li #undef u32
45*9c5db199SXin Li #undef u16
46*9c5db199SXin Li #undef u8
47*9c5db199SXin Li
48*9c5db199SXin Li
49*9c5db199SXin Li
50*9c5db199SXin Li #include "powertop.h"
51*9c5db199SXin Li
activate_WOL_suggestion(void)52*9c5db199SXin Li void activate_WOL_suggestion(void)
53*9c5db199SXin Li {
54*9c5db199SXin Li int sock;
55*9c5db199SXin Li struct ifreq ifr;
56*9c5db199SXin Li struct ethtool_wolinfo wol;
57*9c5db199SXin Li int ret;
58*9c5db199SXin Li
59*9c5db199SXin Li memset(&ifr, 0, sizeof(struct ifreq));
60*9c5db199SXin Li
61*9c5db199SXin Li sock = socket(AF_INET, SOCK_DGRAM, 0);
62*9c5db199SXin Li if (sock<0)
63*9c5db199SXin Li return;
64*9c5db199SXin Li
65*9c5db199SXin Li strcpy(ifr.ifr_name, "eth0");
66*9c5db199SXin Li
67*9c5db199SXin Li /* Check if the interface is up */
68*9c5db199SXin Li ret = ioctl(sock, SIOCGIFFLAGS, &ifr);
69*9c5db199SXin Li if (ret<0) {
70*9c5db199SXin Li close(sock);
71*9c5db199SXin Li return;
72*9c5db199SXin Li }
73*9c5db199SXin Li
74*9c5db199SXin Li if (ifr.ifr_flags & (IFF_UP | IFF_RUNNING)) {
75*9c5db199SXin Li close(sock);
76*9c5db199SXin Li return;
77*9c5db199SXin Li }
78*9c5db199SXin Li
79*9c5db199SXin Li memset(&wol, 0, sizeof(wol));
80*9c5db199SXin Li
81*9c5db199SXin Li wol.cmd = ETHTOOL_GWOL;
82*9c5db199SXin Li ifr.ifr_data = (caddr_t)&wol;
83*9c5db199SXin Li ioctl(sock, SIOCETHTOOL, &ifr);
84*9c5db199SXin Li wol.cmd = ETHTOOL_SWOL;
85*9c5db199SXin Li wol.wolopts = 0;
86*9c5db199SXin Li ioctl(sock, SIOCETHTOOL, &ifr);
87*9c5db199SXin Li
88*9c5db199SXin Li close(sock);
89*9c5db199SXin Li }
90*9c5db199SXin Li
91*9c5db199SXin Li
92*9c5db199SXin Li
suggest_WOL_off(void)93*9c5db199SXin Li void suggest_WOL_off(void)
94*9c5db199SXin Li {
95*9c5db199SXin Li int sock;
96*9c5db199SXin Li struct ifreq ifr;
97*9c5db199SXin Li struct ethtool_wolinfo wol;
98*9c5db199SXin Li int ret;
99*9c5db199SXin Li
100*9c5db199SXin Li memset(&ifr, 0, sizeof(struct ifreq));
101*9c5db199SXin Li
102*9c5db199SXin Li sock = socket(AF_INET, SOCK_DGRAM, 0);
103*9c5db199SXin Li if (sock<0)
104*9c5db199SXin Li return;
105*9c5db199SXin Li
106*9c5db199SXin Li strcpy(ifr.ifr_name, "eth0");
107*9c5db199SXin Li
108*9c5db199SXin Li /* Check if the interface is up */
109*9c5db199SXin Li ret = ioctl(sock, SIOCGIFFLAGS, &ifr);
110*9c5db199SXin Li if (ret<0) {
111*9c5db199SXin Li close(sock);
112*9c5db199SXin Li return;
113*9c5db199SXin Li }
114*9c5db199SXin Li
115*9c5db199SXin Li if (ifr.ifr_flags & (IFF_UP | IFF_RUNNING)) {
116*9c5db199SXin Li close(sock);
117*9c5db199SXin Li return;
118*9c5db199SXin Li }
119*9c5db199SXin Li
120*9c5db199SXin Li memset(&wol, 0, sizeof(wol));
121*9c5db199SXin Li
122*9c5db199SXin Li wol.cmd = ETHTOOL_GWOL;
123*9c5db199SXin Li ifr.ifr_data = (caddr_t)&wol;
124*9c5db199SXin Li ioctl(sock, SIOCETHTOOL, &ifr);
125*9c5db199SXin Li
126*9c5db199SXin Li if (wol.wolopts) {
127*9c5db199SXin Li add_suggestion(_(
128*9c5db199SXin Li "Disable Ethernet Wake-On-Lan with the following command:\n"
129*9c5db199SXin Li " ethtool -s eth0 wol d \n"
130*9c5db199SXin Li "Wake-on-Lan keeps the phy active, this costs power."), 5,
131*9c5db199SXin Li 'W', _(" W - disable Wake-On-Lan "), activate_WOL_suggestion);
132*9c5db199SXin Li
133*9c5db199SXin Li
134*9c5db199SXin Li }
135*9c5db199SXin Li
136*9c5db199SXin Li close(sock);
137*9c5db199SXin Li }
138*9c5db199SXin Li
139