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Implement getting current speed from network interfaces

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The network interface must be supported by ethtool, as its syscall is
used for this. This is at least the case for e1000 cards.

Unfortunately, getting the speed needs root privileges. Therefore, you
have to enable it in configuration separately.
This commit is contained in:
Michael Stapelberg 2008-10-24 21:05:12 +02:00
parent 753144d58b
commit 62f3fc6838
4 changed files with 39 additions and 2 deletions
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5
config.c
View File

@ -19,6 +19,7 @@ const char *wmii_path;
const char *time_format;
const char *battery_path;
bool use_colors;
bool get_ethspeed;
const char *wmii_normcolors = "#222222 #333333";
char order[MAX_ORDER][2];
const char **run_watches;
@ -161,6 +162,10 @@ int load_configuration(const char *configfile) {
{
use_colors = true;
}
OPT("get_ethspeed")
{
get_ethspeed = true;
}
OPT("normcolors")
{
wmii_normcolors = strdup(dest_value);

1
config.h
View File

@ -18,6 +18,7 @@ extern const char order[MAX_ORDER][2];
extern unsigned int interval;
extern bool use_colors;
extern bool get_ethspeed;
#endif
char *glob_path(const char *path);

4
wmiistatus.1
View File

@ -55,6 +55,10 @@ Followed by a comma separated list of the modules (run, wlan, eth, battery, load
.B color
If specified, color mode is on. This affects WLAN which will be displayed red if WLAN is down and the run_watch system which will display the status in red/green.
.TP
.B get_ethspeed
Get current speed of the ethernet interface using the same mechanism as ethtool. You need to start wmiistatus with root privileges to use this.
.TP
.B normcolors
Specifies the colors for background/border in the same format (html colorcodes) as wmii's configuration, that is #222222 #333333 for example.

31
wmiistatus.c
View File

@ -50,6 +50,9 @@
#include <glob.h>
#include <dirent.h>
#include <getopt.h>
#include <linux/ethtool.h>
#include <linux/sockios.h>
#define _IS_WMIISTATUS_C
#include "wmiistatus.h"
@ -262,7 +265,7 @@ static char *get_wireless_info() {
else (void)snprintf(part, sizeof(part), "W: down");
} else {
char *ip_address;
const char *ip_address;
(void)snprintf(part, sizeof(part), "W: (%02d%%) ", quality);
ip_address = get_ip_address(wlan_interface);
strcpy(part+strlen(part), ip_address);
@ -311,10 +314,34 @@ static const char *get_ip_address(const char *interface) {
static char *get_eth_info() {
static char part[512];
const char *ip_address = get_ip_address(eth_interface);
int ethspeed = 0;
if (get_ethspeed) {
struct ifreq ifr;
struct ethtool_cmd ecmd;
int fd, err;
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
write_error_to_statusbar("Could not open socket");
ecmd.cmd = ETHTOOL_GSET;
(void)memset(&ifr, 0, sizeof(ifr));
ifr.ifr_data = (caddr_t)&ecmd;
(void)strcpy(ifr.ifr_name, eth_interface);
if ((err = ioctl(fd, SIOCETHTOOL, &ifr)) == 0)
ethspeed = ecmd.speed;
else write_error_to_statusbar("Could not get interface speed. Insufficient privileges?");
(void)close(fd);
}
if (ip_address == NULL)
(void)snprintf(part, sizeof(part), "E: down");
else (void)snprintf(part, sizeof(part), "E: %s", ip_address);
else {
if (get_ethspeed)
(void)snprintf(part, sizeof(part), "E: %s (%d Mbit/s)", ip_address, ethspeed);
else (void)snprintf(part, sizeof(part), "E: %s", ip_address);
}
return part;
}