[systemd-devel] network signals

[ashok athukuri]

Hello All,


I'm trying to use DBUS signal "PropertiesChanged" of
org.freedesktop.network1 /org/freedesktop/network1 *to detect network
interface is up or down OR the speed of the interface is changed.*

Is it possible? using a subscription to "PropertiesChanged" signal via the
below interface or PATH ?
If yes, how to test those, Currently I don't see any anything on my
dbus-monitor.

Here is how I am testing :

*# dbus-monitor --system "type='signal',path='/org/freede*


*sktop/network1'"#ifconfig wlan0 down*

# busctl introspect org.freedesktop.network1 /org/freedesktop/network1
NAME                                TYPE      SIGNATURE RESULT/VALUE FLAGS
org.freedesktop.DBus.Introspectable interface -         -            -
.Introspect                         method    -         s            -
org.freedesktop.DBus.Peer           interface -         -            -
.GetMachineId                       method    -         s            -
.Ping                               method    -         -            -
org.freedesktop.DBus.Properties     interface -         -            -
.Get                                method    ss        v            -
.GetAll                             method    s         a{sv}        -
.Set                                method    ssv       -            -
.PropertiesChanged                  signal    sa{sv}as  -            -
org.freedesktop.network1.Manager    interface -         -            -
.Describe                           method    -         s            -
.DescribeLink                       method    i         s            -
.ForceRenewLink                     method    i         -            -
.GetLinkByIndex                     method    i         so           -
.GetLinkByName                      method    s         io           -
.ListLinks                          method    -         a(iso)       -
.ReconfigureLink                    method    i         -            -
.Reload                             method    -         -            -
.RenewLink                          method    i         -            -
.RevertLinkDNS                      method    i         -            -
.RevertLinkNTP                      method    i         -            -
.SetLinkDNS                         method    ia(iay)   -            -
.SetLinkDNSEx                       method    ia(iayqs) -            -
.SetLinkDNSOverTLS                  method    is        -            -
.SetLinkDNSSEC                      method    is        -            -
.SetLinkDNSSECNegativeTrustAnchors  method    ias       -            -
.SetLinkDefaultRoute                method    ib        -            -
.SetLinkDomains                     method    ia(sb)    -            -
.SetLinkLLMNR                       method    is        -            -
.SetLinkMulticastDNS                method    is        -            -
.SetLinkNTP                         method    ias       -            -
.AddressState                       property  s         "routable"
emits-change
.CarrierState                       property  s         "carrier"
 emits-change
.IPv4AddressState                   property  s         "routable"
emits-change
.IPv6AddressState                   property  s         "routable"
emits-change
.NamespaceId                        property  t         4026531840   const
.OnlineState                        property  s         "partial"
 emits-change
.OperationalState                   property  s         "routable"
emits-change
root at MK3AC-WS100269:/var/lib/evse/cache#

Thanks,
Ashok
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