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Autor: Didier Kryn
Fecha:  
A: dng@lists.dyne.org
Temas antiguos: Re: [DNG] Systemd Shims
Asunto: [DNG] howto wifi roaming [was Re: Systemd Shims]
Le 19/08/2015 01:37, Isaac Dunham a écrit :
> On Tue, Aug 18, 2015 at 02:19:20PM +0200, Didier Kryn wrote:
>> Le 18/08/2015 12:49, Edward Bartolo a écrit :
>>> At the moment I am stuck trying to use sudo to run ifup from within my
>>> frontend.
>>      Just in case, here are a few things I know about wpa_supplicant:

>>
>>       wpa_supplicant does ifups automatically when it connects to a wifi
>> station. If an interface name is not specified in wpa_supplicant.conf, in
>> the proper section of this station, it ifups the interface named "default".

>>
>>      Therefore you shouldn't ifup yourself. You only need to fill the
>> configuration files, wpa_supplicant.conf, via the control socket and
>> interfaces by some method probably involving sudo.
> I've not been able to figure out what that would look like.
> Could you give a sample wpa_supplicant.conf and /etc/network/interfaces?

>
> Assume the following configuration:
> network 1: (WPA)
>     SSID = "home"
>     pass = "topsecret"
>     ip = 192.168.1.100
>     router = 192.168.1.0
>     nameserver = 8.8.8.8

>
> network 2: (open, DHCP)
>     SSID = "public"

>
> This is what I know would go in wpa_supplicant.conf:
>
> ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=net
> network={
>     ssid="home"
>     #psk="topsecret"
>     psk=c406ef685867ff2dca906a4992ab997d6ebd5c747451113c0c0ead704d859010
> }
> network={
>     ssid="public"
>     key_mgmt=NONE
> }

>

     You add the following line to your home config in wpa_supplicant.conf:
     id_str="foo"


     and you put the following in interfaces:
----------------------------------
allow-hotplug wlan0
iface wlan0 inet manual
         wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf


iface foo inet static
        address      192.168.1.100
        netmask      255.255.255.0
        network      192.168.1.0
        broadcast    192.168.1.255
        gateway      192.168.1.0


iface default inet dhcp
-----------------------------------

With id_str, you can assign an interface name to every wifi station in
wpa_supplicant.conf
and declare in interfaces how you want it configured. id_str defaults to
"default"

     Attached are my two files. I have masked the passwords in 
wpa_supplicant.conf.I tried
to use a static address with the wifi in a hotel where dhcp wasn't 
working; I don't use
it anymore but there is the relic in wpa_supplicant.conf.


     For the file interfaces,I don't know how the instruction wpa-roam 
is executed, since
there isno file with this name in the system. I can only guess it is 
interpreted by
ifup/ifdown.Note the last line; it tells ifup that the default interface 
name used
by wpa_supplicant must be configured by dhcp.


     The only 3 package I have installed to manage the network are 
ifplugd, wpa_supplicant
and wpagui. I use the last only to enable a new wifi station or to 
disconnect/reconnect when
there is a problem. The rest of the time, wpa_supplicant does everything 
automagically.



     For the whole explanation, have a look at this howto:


http://www.debuntu.org/how-to-wifi-roaming-with-wpa-supplicant/

     Didier




# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

allow-hotplug eth0
iface eth0 inet dhcp

## Static configuration at APC
#iface eth0 inet static
#       address      134.158.186.218
#       netmask      255.255.252.0
#       network      134.158.184.0
#       broadcast    134.158.187.255
#       gateway      134.158.184.1


## Static configuration for local network
#iface eth0 inet static
#       address      192.168.1.1
#       netmask      255.255.254.0
#       network      192.168.0.0
#       broadcast    192.168.1.255
#       gateway      192.168.0.1


# Wifi interface:
allow-hotplug wlan0
iface wlan0 inet manual
    wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf


# Default name given by wpa_supplicant for wlan0:
iface default inet dhcp
ctrl_interface=/var/run/wpa_supplicant
update_config=1

network={
    ssid="Livebox-7e88"
    key_mgmt=NONE
}


network={
    ssid="Livebox-7e88"
    psk="xxxxxxxxxxxxxxxxxxxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=TKIP
    group=TKIP WEP104 WEP40
}


network={
    ssid="LNCA"
    psk="xxxxxxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=CCMP
}


network={
    ssid="INFN-dot1x"
    proto=RSN
    key_mgmt=WPA-EAP
    pairwise=CCMP
    auth_alg=OPEN
    eap=TTLS
    identity="............"
    password="xxxxxxxxx"
    phase2="auth=PAP"
}


network={
    ssid="daqborex"
    key_mgmt=NONE
}


network={
    ssid="Livebox-D775"
    psk="xxxxxxxxxxxxxxxxxxxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=CCMP
    auth_alg=OPEN
}


network={
    ssid="Livebox-D775"
    psk="xxxxxxxxxxxxxxxxxxxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=TKIP
    group=TKIP WEP104 WEP40
}


network={
    ssid="escalier1"
    key_mgmt=NONE
    wep_key0=xxxxxxxxxx
    priority=10
    id_str="crotte-de-bique"
}


network={
    ssid="Livebox-273e"
    psk="xxxxxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=TKIP
    group=TKIP WEP104 WEP40
}


network={
    ssid="CAES-AUSSOIS"
    psk="xxxxxxxxxxxxxxxxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=TKIP
    group=TKIP WEP104 WEP40
}


network={
    ssid="lingrie2"
    key_mgmt=NONE
    auth_alg=OPEN
    wep_key0=xxxxxxxxxx
}


network={
    ssid="Zhone_2621"
    psk="xxxxxxxxxxxxx"
    proto=WPA
    key_mgmt=WPA-PSK
    pairwise=TKIP
    group=TKIP WEP104 WEP40
    auth_alg=OPEN
}


network={
    ssid="gitejackis"
    psk="xxxxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=TKIP
    group=TKIP WEP104 WEP40
    auth_alg=OPEN
}


network={
    ssid="CAES-AUSSOIS"
    psk="centrepaullangevin73500"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=TKIP
    group=TKIP WEP104 WEP40
    auth_alg=OPEN
}


network={
    ssid="CAES-AUSSOIS"
    psk="xxxxxxxxxxxxxxxxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=TKIP
    group=TKIP WEP104 WEP40
    auth_alg=OPEN
}


network={
    ssid="ROOSEVELT"
    psk="HOTELROOSEVELT08600"
    psk="xxxxxxxxxxxxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=CCMP
    auth_alg=OPEN
}


network={
    ssid="Wifi_Vauban"
    psk="xxxxxxxxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=TKIP
    group=TKIP WEP104 WEP40
    auth_alg=OPEN
}


network={
    ssid="Livebox-3f7c"
    psk="xxxxxxxxxxxxxxxxxxxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=TKIP
    group=TKIP WEP104 WEP40
    auth_alg=OPEN
}


network={
    ssid="vieuxmorvan2"
    key_mgmt=NONE
    auth_alg=OPEN
}


network={
    ssid="premiere classe chambres"
    key_mgmt=NONE
    auth_alg=OPEN
}


network={
    ssid="Villetta"
    key_mgmt=NONE
    auth_alg=OPEN
}


network={
    ssid="Fiordigigli"
    psk="xxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=TKIP
    group=TKIP WEP104 WEP40
    auth_alg=OPEN
}


network={
    ssid="apcmcdf"
    psk="xxxxxxxxxxxx"
    proto=RSN
    key_mgmt=WPA-PSK
    pairwise=CCMP
    auth_alg=OPEN
}


network={
    ssid="raminagrobis"
    key_mgmt=NONE
    auth_alg=SHARED
    wep_key0=xxxxxxxxxx
}


network={
    ssid="IReS-Conference"
    key_mgmt=NONE
    auth_alg=OPEN
}


network={
    ssid="Freebox-5D0FCE"
    psk="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
    proto=WPA
    key_mgmt=WPA-PSK
    pairwise=CCMP
    auth_alg=OPEN
}


network={
    ssid="TERRAQUE"
    key_mgmt=NONE
    auth_alg=OPEN
}