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#1 2013-04-20 21:30:44

duquesnc
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Registered: 2008-12-10
Posts: 94
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netmon - a lightweight tray network monitor useful with netctl

I rewrote it from Tidybattery.

yUkObAt.png

Here is the code, and the AUR package.

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#2 2013-04-25 12:54:42

X-dark
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From: France
Registered: 2009-10-25
Posts: 135
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Re: netmon - a lightweight tray network monitor useful with netctl

Nice.

I am currently connected to an ethernet network and only "connected on eth0" is displayed. I would expect to get at least my IP address and probably the default gateway.

Consider also using new VCS PKGBUILD guidelines for your PKGBUILD.


Cedric Girard

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#3 2013-04-25 15:22:27

duquesnc
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Registered: 2008-12-10
Posts: 94
Website

Re: netmon - a lightweight tray network monitor useful with netctl

Yeah, I've been super lazy concerning the content of the tooltip, and printed the output of wpa_cli status verbatim (when I detect we are connected on wireless). I guess it would require some parsing, and I could also mix that with some infos from 'ip addr show dev <interface>'. On the other hand, I'd like to keep the whole thing light and readable, and avoid exceeding 100 loc. But if you write a patch, I'll take it happily!

I'll update the PKGBUILD.

Last edited by duquesnc (2013-04-25 15:22:45)

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#4 2013-04-25 15:29:17

X-dark
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From: France
Registered: 2009-10-25
Posts: 135
Website

Re: netmon - a lightweight tray network monitor useful with netctl

duquesnc wrote:

But if you write a patch, I'll take it happily!

I will have a look. It does not seem too complicated.


Cedric Girard

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#5 2013-06-11 18:49:59

barkbombardier
Member
Registered: 2012-08-24
Posts: 9

Re: netmon - a lightweight tray network monitor useful with netctl

I put the entry in .xinitrc. The icon does appear in tint2. It shows that I am disconnected when I do have a connection. How can I fix? Thank you!

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#6 2013-06-11 19:22:46

duquesnc
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Registered: 2008-12-10
Posts: 94
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Re: netmon - a lightweight tray network monitor useful with netctl

Could you tell me what is the output of the following command?

ip route show

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#7 2013-06-11 19:36:17

barkbombardier
Member
Registered: 2012-08-24
Posts: 9

Re: netmon - a lightweight tray network monitor useful with netctl

Ok here it is


$ ip route show
default via 192.168.0.1 dev wlp0s26f7u1  metric 303
192.168.0.0/24 dev wlp0s26f7u1  proto kernel  scope link  src 192.168.0.101  metric 303

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#8 2013-06-11 19:49:36

duquesnc
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Registered: 2008-12-10
Posts: 94
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Re: netmon - a lightweight tray network monitor useful with netctl

Great. Now can you try to run:

ping 192.168.0.1

netmon determines if it is connected by trying to ping the gateway. I assumed this method was reliable, but maybe not. Also, can you run

ls  /sys/class/net/wlp0s26f7u1
cat /sys/class/net/wlp0s26f7u1/type

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#9 2013-06-11 19:52:06

duquesnc
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Registered: 2008-12-10
Posts: 94
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Re: netmon - a lightweight tray network monitor useful with netctl

My guess is that the ping command will fail. The two other extra commands are just to check if  netmon is guessing the interface type (wireless or wired) correctly.

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#10 2013-06-11 21:09:55

barkbombardier
Member
Registered: 2012-08-24
Posts: 9

Re: netmon - a lightweight tray network monitor useful with netctl

PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
64 bytes from 192.168.0.1: icmp_seq=1 ttl=64 time=2.44 ms

cat /sys/class/net/wlp0s26f7u1/type 1

ls  /sys/class/net/wlp0s26f7u1
addr_assign_type  dev_id   ifalias    netdev_group  speed      uevent
addr_len      device   ifindex    operstate     statistics      wireless
address          dormant  iflink     phy80211        subsystem
broadcast      duplex   link_mode  power        tx_queue_len
carrier          flags    mtu          queues        type

I apologize I forgot to mention it before, but this is a Archbang system.

If I call it as root from the terminal I get the the red x icon in tint2 but the correct tool tip output.

Last edited by barkbombardier (2013-06-11 21:13:15)

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#11 2013-06-11 21:30:11

duquesnc
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Registered: 2008-12-10
Posts: 94
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Re: netmon - a lightweight tray network monitor useful with netctl

barkbombardier wrote:

PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
If I call it as root from the terminal I get the the red x icon in tint2 but the correct tool tip output.

Oh, so it is not that netmon is malfunctionning. It's a problem in your icon theme: it misses standard icons. netmon uses 3 icons that are normally always present in a theme. These icons are called "network-wired", "network-wireless" and "network-error". It seems that your theme is missing these icons. Try to install faenza-icon-theme, for example, and change your settings to use this icon theme.

EDIT:

If I call it as root

You mean that if you don't, it incorrectly reports that you are disconnected?

EDIT 2:
By the way, do you confirm that you are connected through a wireless interface?

Last edited by duquesnc (2013-06-11 21:32:48)

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#12 2013-06-11 21:55:34

barkbombardier
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Registered: 2012-08-24
Posts: 9

Re: netmon - a lightweight tray network monitor useful with netctl

That was it,thanks

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#13 2013-06-11 21:58:32

duquesnc
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Registered: 2008-12-10
Posts: 94
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Re: netmon - a lightweight tray network monitor useful with netctl

Ok.

As a reminder: there is no reason to run netmon as root, it is not supposed to require root access.

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#14 2013-08-19 12:31:59

ewdm
Member
Registered: 2013-08-19
Posts: 1

Re: netmon - a lightweight tray network monitor useful with netctl

When runing as user, it brings me to the following traceback:

$  netmon
Failed to connect to non-global ctrl_ifname: (null)  error: Permission denied
Traceback (most recent call last):
  File "/usr/bin/netmon", line 113, in <module>
    MainApp()
  File "/usr/bin/netmon", line 76, in __init__
    self.update_icon()
  File "/usr/bin/netmon", line 107, in update_icon
    tooltip = self.get_tooltip(info['interface'], info['connected'])
  File "/usr/bin/netmon", line 98, in get_tooltip
    res = '\n'.join([res, wpa_status()])
  File "/usr/bin/netmon", line 49, in wpa_status
    return subprocess.check_output(['wpa_cli', 'status']).strip()
  File "/usr/lib/python2.7/subprocess.py", line 575, in check_output
    raise CalledProcessError(retcode, cmd, output=output)
subprocess.CalledProcessError: Command '['wpa_cli', 'status']' returned non-zero exit status 255

If use kdesu netmon, it works.

What could be the problem with?

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#15 2013-08-19 13:52:59

duquesnc
Member
Registered: 2008-12-10
Posts: 94
Website

Re: netmon - a lightweight tray network monitor useful with netctl

Well it appears that, for some reason, the command 'wpa_cli status' fails when you run it as a user. Normally, this command does not require root access. Maybe you could confirm that by running it command as a user. Then, if the command actually returns an error, it is probably because you did not put yourself in the group wheel or something like that (in that case you should use the gpasswd command to add yourself in the wheel group).

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#16 2013-08-20 21:03:05

whitie
Member
Registered: 2011-03-13
Posts: 16

Re: netmon - a lightweight tray network monitor useful with netctl

Hello,
I have ported this little script to use Python 3 and PyQt4, because I found it usefull and I'm using razor-qt as my desktop. It's not finished (I have no wired connection to test), but works for my wireless connection.

#!/usr/bin/env python3

import os
import re
import sys

from subprocess import check_output

from PyQt4 import QtCore, QtGui


ENC = sys.getfilesystemencoding() or 'utf-8'

eth_re = re.compile(r'(inet6? [^ ]*) ', re.I)


def _get_interfaces(exclude_localhost=True):
    if exclude_localhost:
        return [x for x in os.listdir('/sys/class/net') if x != 'lo']
    else:
        return os.listdir('/sys/class/net')


def get_default_interface():
    """Returns the interface for the default route."""
    ifaces = _get_interfaces()
    out = check_output(['ip', 'route', 'list', 'scope', 'global']).decode(ENC)
    for line in out.split('\n'):
        if line.startswith('default'):
            for iface in ifaces:
                if ' {0} '.format(iface) in line:
                    return iface


def check_carrier(iface):
    with open(os.path.join('/sys/class/net', iface, 'carrier')) as fp:
        return fp.read().strip() == '1'


def get_wireless_status():
    return check_output(['wpa_cli', 'status']).decode(ENC).strip()

def get_wired_status(iface):
    out = check_output(['ip', 'addr', 'show', 'dev', iface]).decode(ENC)
    res = []
    for match in eth_re.finditer(out):
        res.append(match.group(1))
    return '\n'.join(res)


def get_interface_type(iface):
    iface_type = 'wired'
    iface_dir = os.path.join('/sys/class/net', iface)
    _dir = os.listdir(iface_dir)
    with open(os.path.join(iface_dir, 'type')) as fp:
        _id = fp.read().strip()
    if _id == '1' and ('wireless' in _dir or 'phy80211' in _dir):
        iface_type = 'wireless'
    return iface_type


class TrayIcon(QtGui.QSystemTrayIcon):

    def __init__(self, parent=None):
        QtGui.QSystemTrayIcon.__init__(self, parent)
        self.iface = None
        self.iface_type = None
        self.setup()
        if self.iface is not None:
            self.showMessage('Network',
                'Connected with {0}.'.format(self.iface))
        else:
            self.showMessage('Network', 'Not connected.')
        self.timer = QtCore.QTimer(self)
        self.timer.timeout.connect(self.setup)
        self.timer.start(5000)

    def setup(self):
        self.iface = get_default_interface()
        self.iface_type = get_interface_type(self.iface)
        if self.iface_type == 'wired':
            self.setIcon(QtGui.QIcon.fromTheme('network-wired'))
            self.setToolTip(get_wired_status(self.iface))
        else:
            self.setIcon(QtGui.QIcon.fromTheme('network-wireless'))
            self.setToolTip(get_wireless_status())


if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    tray = TrayIcon()
    tray.show()
    sys.exit(app.exec_())

Whitie

Edit: I think the better way is to get all the information from dbus. I try to implement it soon.

Last edited by whitie (2013-08-20 21:23:10)

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