No Agent registered when calling Connect method

No Agent registered when calling Connect method

[clement.legoffic]

Hello,

I want to connect to a psk network using iwd D-BUS interface.
I am using IWD version 1.25 with sytemd.
To call D-BUS method I use busctl.
My actions are :

Scan for networks :
busctl call net.connman.iwd /net/connman/iwd/0/6 net.connman.iwd.Station Scan

Register an agent :
busctl call net.connman.iwd /net/connman/iwd net.connman.iwd.AgentManager RegisterAgent o /test/agent/1234

Call Connect method my object Interface
busctl call net.connman.iwd /net/connman/iwd/0/6/Xxxxx net.connman.iwd.Network Connect

But I get the error :
Call failed: No Agent registered

So I restart iwd deamon with debug output and try to connect to my network using iwctl
iwctl station wlan0 connect SSID

IWD debug output with the iwctl command is :
src/agent.c:agent_register() agent register called
src/agent.c:agent_register() agent :1.71 path /agent/471
src/network.c:network_connect()
src/network.c:network_connect_psk() ask_passphrase: true
src/agent.c:agent_request_passphrase() agent 0xb9ca8 owner :1.71 path /agent/471
src/agent.c:agent_send_next_request() send request to :1.71 /agent/471
src/agent.c:agent_receive_reply() agent 0xb9ca8 request id 22
src/network.c:passphrase_callback() result 0

And I get connected

Whereas the debug output using the D-BUS Call is :
src/agent.c:agent_register() agent register called
src/agent.c:agent_register() agent :1.78 path /test/agent/1234
src/agent.c:agent_disconnect() agent :1.78 disconnected
src/agent.c:agent_free() agent free 0xbb1a0
src/network.c:network_connect()
src/network.c:network_connect_psk() ask_passphrase: true

And I'm not able to connect to my network/

We can observe that the agent disconnect before the network_connect(), Is it a normal behaviour ?

So my question is how to use the RegisterAgent method in order to connect to a psk Network with DBUS ?

Thanks in advance


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Re: No Agent registered when calling Connect method

[James Prestwood]

Hi,

On Thu, 2023-03-23 at 09:52 +0000, clement.legoffic@kelio.com wrote:
> Hello,
> 
> I want to connect to a psk network using iwd D-BUS interface.
> I am using IWD version 1.25 with sytemd.
> To call D-BUS method I use busctl.

I think using busctl for an agent is likely the problem. An agent for
IWD is a DBus service, so it must be running and able to accept
incoming requests for passphrase/usernames etc.

> My actions are :
> 
> Scan for networks :
> busctl call net.connman.iwd /net/connman/iwd/0/6
> net.connman.iwd.Station Scan
> 
> Register an agent :
> busctl call net.connman.iwd /net/connman/iwd
> net.connman.iwd.AgentManager RegisterAgent o /test/agent/1234
> 
> Call Connect method my object Interface
> busctl call net.connman.iwd /net/connman/iwd/0/6/Xxxxx
> net.connman.iwd.Network Connect
> 
> But I get the error :
> Call failed: No Agent registered
> 
> So I restart iwd deamon with debug output and try to connect to my
> network using iwctl
> iwctl station wlan0 connect SSID
> 
> IWD debug output with the iwctl command is :
> src/agent.c:agent_register() agent register called
> src/agent.c:agent_register() agent :1.71 path /agent/471
> src/network.c:network_connect()
> src/network.c:network_connect_psk() ask_passphrase: true
> src/agent.c:agent_request_passphrase() agent 0xb9ca8 owner :1.71 path
> /agent/471
> src/agent.c:agent_send_next_request() send request to :1.71 /agent/471
> src/agent.c:agent_receive_reply() agent 0xb9ca8 request id 22
> src/network.c:passphrase_callback() result 0
> 
> And I get connected
> 
> Whereas the debug output using the D-BUS Call is :
> src/agent.c:agent_register() agent register called
> src/agent.c:agent_register() agent :1.78 path /test/agent/1234
> src/agent.c:agent_disconnect() agent :1.78 disconnected
> src/agent.c:agent_free() agent free 0xbb1a0
> src/network.c:network_connect()
> src/network.c:network_connect_psk() ask_passphrase: true
> 
> And I'm not able to connect to my network/
> 
> We can observe that the agent disconnect before the network_connect(),
> Is it a normal behaviour ?
> 
> So my question is how to use the RegisterAgent method in order to
> connect to a psk Network with DBUS ?

IWD has a simple agent service written in Python for reference:
https://git.kernel.org/pub/scm/network/wireless/iwd.git/tree/test/simple-agent

Thanks,
James

> 
> Thanks in advance
> 
> 
> Ce message et toutes les pieces jointes (ci-apres le "message") sont
> etablis a l'intention exclusive de ses destinataires.
> Si vous recevez ce message par erreur, merci de le detruire et d'en
> avertir immediatement l'expediteur par e-mail.
> Toute utilisation de ce message non conforme a sa destination, toute
> diffusion ou toute publication, totale ou partielle, est interdite,
> sauf autorisation expresse. Les communications sur Internet n'etant pas
> securisees, l'expediteur informe qu'il ne peut accepter aucune
> responsabilite quant au contenu de ce message.
> This mail message and attachments (the "message") are solely intended
> for the addresses. It is confidential in nature.
> If you receive this message in error, please delete it and immediately
> notify the sender by e-mail.
> Any use other than its intended purpose, dissemination or disclosure,
> either whole or partial, is prohibited except if formal approval is
> granted. As communication on the Internet is not secure, the sender
> does not accept responsibility for the content of this message.
> 

RE: No Agent registered when calling Connect method

[clement.legoffic]

Hi,

Thank you for your answer !

> Hi,
> 
> On Thu, 2023-03-23 at 09:52 +0000, clement.legoffic@kelio.com wrote:
> > Hello,
> >
> > I want to connect to a psk network using iwd D-BUS interface.
> > I am using IWD version 1.25 with sytemd.
> > To call D-BUS method I use busctl.
> 
> I think using busctl for an agent is likely the problem. An agent for IWD is a
> DBus service, so it must be running and able to accept incoming requests
> for passphrase/usernames etc.

Ok I understand.

> 
> > My actions are :
> >
> > Scan for networks :
> > busctl call net.connman.iwd /net/connman/iwd/0/6
> > net.connman.iwd.Station Scan
> >
> > Register an agent :
> > busctl call net.connman.iwd /net/connman/iwd
> > net.connman.iwd.AgentManager RegisterAgent o /test/agent/1234
> >
> > Call Connect method my object Interface busctl call net.connman.iwd
> > /net/connman/iwd/0/6/Xxxxx net.connman.iwd.Network Connect
> >
> > But I get the error :
> > Call failed: No Agent registered
> >
> > So I restart iwd deamon with debug output and try to connect to my
> > network using iwctl iwctl station wlan0 connect SSID
> >
> > IWD debug output with the iwctl command is :
> > src/agent.c:agent_register() agent register called
> > src/agent.c:agent_register() agent :1.71 path /agent/471
> > src/network.c:network_connect()
> > src/network.c:network_connect_psk() ask_passphrase: true
> > src/agent.c:agent_request_passphrase() agent 0xb9ca8 owner :1.71 path
> > /agent/471
> > src/agent.c:agent_send_next_request() send request to :1.71 /agent/471
> > src/agent.c:agent_receive_reply() agent 0xb9ca8 request id 22
> > src/network.c:passphrase_callback() result 0
> >
> > And I get connected
> >
> > Whereas the debug output using the D-BUS Call is :
> > src/agent.c:agent_register() agent register called
> > src/agent.c:agent_register() agent :1.78 path /test/agent/1234
> > src/agent.c:agent_disconnect() agent :1.78 disconnected
> > src/agent.c:agent_free() agent free 0xbb1a0
> > src/network.c:network_connect()
> > src/network.c:network_connect_psk() ask_passphrase: true
> >
> > And I'm not able to connect to my network/
> >
> > We can observe that the agent disconnect before the network_connect(),
> > Is it a normal behaviour ?
> >
> > So my question is how to use the RegisterAgent method in order to
> > connect to a psk Network with DBUS ?
> 
> IWD has a simple agent service written in Python for reference:
> https://git.kernel.org/pub/scm/network/wireless/iwd.git/tree/test/simple-
> agent

I have read this code but maybe not understand it.
Does I need to create my own Agent ? Wich respect the doc agent-api here : 
https://git.kernel.org/pub/scm/network/wireless/iwd.git/tree/doc/agent-api.txt

Why can't I use the IWD agent which iwctl use ?

Thanks

> 
> Thanks,
> James
> 
> >
> > Thanks in advance
> >
> >

Re: No Agent registered when calling Connect method

[James Prestwood]

On Fri, 2023-03-24 at 09:42 +0000, clement.legoffic@kelio.com wrote:
> Hi,
> 
> Thank you for your answer !
> 
> > Hi,
> > 
> > On Thu, 2023-03-23 at 09:52 +0000,
> > clement.legoffic@kelio.com wrote:
> > > Hello,
> > > 
> > > I want to connect to a psk network using iwd D-BUS interface.
> > > I am using IWD version 1.25 with sytemd.
> > > To call D-BUS method I use busctl.
> > 
> > I think using busctl for an agent is likely the problem. An agent
> > for IWD is a
> > DBus service, so it must be running and able to accept incoming
> > requests
> > for passphrase/usernames etc.
> 
> Ok I understand.
> 
> > 
> > > My actions are :
> > > 
> > > Scan for networks :
> > > busctl call net.connman.iwd /net/connman/iwd/0/6
> > > net.connman.iwd.Station Scan
> > > 
> > > Register an agent :
> > > busctl call net.connman.iwd /net/connman/iwd
> > > net.connman.iwd.AgentManager RegisterAgent o /test/agent/1234
> > > 
> > > Call Connect method my object Interface busctl call
> > > net.connman.iwd
> > > /net/connman/iwd/0/6/Xxxxx net.connman.iwd.Network Connect
> > > 
> > > But I get the error :
> > > Call failed: No Agent registered
> > > 
> > > So I restart iwd deamon with debug output and try to connect to
> > > my
> > > network using iwctl iwctl station wlan0 connect SSID
> > > 
> > > IWD debug output with the iwctl command is :
> > > src/agent.c:agent_register() agent register called
> > > src/agent.c:agent_register() agent :1.71 path /agent/471
> > > src/network.c:network_connect()
> > > src/network.c:network_connect_psk() ask_passphrase: true
> > > src/agent.c:agent_request_passphrase() agent 0xb9ca8 owner :1.71
> > > path
> > > /agent/471
> > > src/agent.c:agent_send_next_request() send request to :1.71
> > > /agent/471
> > > src/agent.c:agent_receive_reply() agent 0xb9ca8 request id 22
> > > src/network.c:passphrase_callback() result 0
> > > 
> > > And I get connected
> > > 
> > > Whereas the debug output using the D-BUS Call is :
> > > src/agent.c:agent_register() agent register called
> > > src/agent.c:agent_register() agent :1.78 path /test/agent/1234
> > > src/agent.c:agent_disconnect() agent :1.78 disconnected
> > > src/agent.c:agent_free() agent free 0xbb1a0
> > > src/network.c:network_connect()
> > > src/network.c:network_connect_psk() ask_passphrase: true
> > > 
> > > And I'm not able to connect to my network/
> > > 
> > > We can observe that the agent disconnect before the
> > > network_connect(),
> > > Is it a normal behaviour ?
> > > 
> > > So my question is how to use the RegisterAgent method in order to
> > > connect to a psk Network with DBUS ?
> > 
> > IWD has a simple agent service written in Python for reference:
> > https://git.kernel.org/pub/scm/network/wireless/iwd.git/tree/test/simple
> > -
> > agent
> 
> I have read this code but maybe not understand it.
> Does I need to create my own Agent ? Wich respect the doc agent-api
> here : 
> https://git.kernel.org/pub/scm/network/wireless/iwd.git/tree/doc/agent-api.txt
> 
> Why can't I use the IWD agent which iwctl use ?

You can use iwctl as the agent, and you already did this to connect
above. What's the problem doing it this way?

Thanks,
Jame

> 
> Thanks
> 
> > 
> > Thanks,
> > James
> > 
> > > 
> > > Thanks in advance
> > > 
> > > 

RE: No Agent registered when calling Connect method

[clement.legoffic]

Hi,

> On Fri, 2023-03-24 at 09:42 +0000, clement.legoffic@kelio.com wrote:
> > Hi,
> >
> > Thank you for your answer !
> >
> > > Hi,
> > >
> > > On Thu, 2023-03-23 at 09:52 +0000,
> > > clement.legoffic@kelio.com wrote:
> > > > Hello,
> > > >
> > > > I want to connect to a psk network using iwd D-BUS interface.
> > > > I am using IWD version 1.25 with sytemd.
> > > > To call D-BUS method I use busctl.
> > >
> > > I think using busctl for an agent is likely the problem. An agent
> > > for IWD is a DBus service, so it must be running and able to accept
> > > incoming requests for passphrase/usernames etc.
> >
> > Ok I understand.
> >
> > >
> > > > My actions are :
> > > >
> > > > Scan for networks :
> > > > busctl call net.connman.iwd /net/connman/iwd/0/6
> > > > net.connman.iwd.Station Scan
> > > >
> > > > Register an agent :
> > > > busctl call net.connman.iwd /net/connman/iwd
> > > > net.connman.iwd.AgentManager RegisterAgent o /test/agent/1234
> > > >
> > > > Call Connect method my object Interface busctl call
> > > > net.connman.iwd /net/connman/iwd/0/6/Xxxxx
> net.connman.iwd.Network
> > > > Connect
> > > >
> > > > But I get the error :
> > > > Call failed: No Agent registered
> > > >
> > > > So I restart iwd deamon with debug output and try to connect to my
> > > > network using iwctl iwctl station wlan0 connect SSID
> > > >
> > > > IWD debug output with the iwctl command is :
> > > > src/agent.c:agent_register() agent register called
> > > > src/agent.c:agent_register() agent :1.71 path /agent/471
> > > > src/network.c:network_connect()
> > > > src/network.c:network_connect_psk() ask_passphrase: true
> > > > src/agent.c:agent_request_passphrase() agent 0xb9ca8 owner :1.71
> > > > path
> > > > /agent/471
> > > > src/agent.c:agent_send_next_request() send request to :1.71
> > > > /agent/471
> > > > src/agent.c:agent_receive_reply() agent 0xb9ca8 request id 22
> > > > src/network.c:passphrase_callback() result 0
> > > >
> > > > And I get connected
> > > >
> > > > Whereas the debug output using the D-BUS Call is :
> > > > src/agent.c:agent_register() agent register called
> > > > src/agent.c:agent_register() agent :1.78 path /test/agent/1234
> > > > src/agent.c:agent_disconnect() agent :1.78 disconnected
> > > > src/agent.c:agent_free() agent free 0xbb1a0
> > > > src/network.c:network_connect()
> > > > src/network.c:network_connect_psk() ask_passphrase: true
> > > >
> > > > And I'm not able to connect to my network/
> > > >
> > > > We can observe that the agent disconnect before the
> > > > network_connect(), Is it a normal behaviour ?
> > > >
> > > > So my question is how to use the RegisterAgent method in order to
> > > > connect to a psk Network with DBUS ?
> > >
> > > IWD has a simple agent service written in Python for reference:
> > > https://git.kernel.org/pub/scm/network/wireless/iwd.git/tree/test/si
> > > mple
> > > -
> > > agent
> >
> > I have read this code but maybe not understand it.
> > Does I need to create my own Agent ? Wich respect the doc agent-api
> > here :
> > https://git.kernel.org/pub/scm/network/wireless/iwd.git/tree/doc/agent
> > -api.txt
> >
> > Why can't I use the IWD agent which iwctl use ?
> 
> You can use iwctl as the agent, and you already did this to connect above.
> What's the problem doing it this way?

Actually it is not a problem, I just want to only use the IWD D-BUS interface in order to connect to a WPA2 Network.
My use of iwctl is here to confirm It can works.
I need to register a Agent in order to calculate the PSK to make the ssid.psk config file but I cannot figure out how Agent registering works.
What I understand in the python example is that I should create my own Agent, that implements the same method and properties form the documentation. 
And so I was wondering if only for test purposes I can be able to use the iwctl Agent in order to connect to my WPA2 network.

Thanks,
Clément

> 
> Thanks,
> Jame
> 
> >
> > Thanks
> >
> > >
> > > Thanks,
> > > James
> > >
> > > >
> > > > Thanks in advance
> > > >
> > > >
> 

Re: No Agent registered when calling Connect method

[Joakim Lotsengård]

Hi,

On Mon, 27 Mar 2023 at 09:24, clement.legoffic@kelio.com
<clement.legoffic@kelio.com> wrote:
> > >
> > > Why can't I use the IWD agent which iwctl use ?
> >
> > You can use iwctl as the agent, and you already did this to connect above.
> > What's the problem doing it this way?
>
> Actually it is not a problem, I just want to only use the IWD D-BUS interface in order to connect to a WPA2 Network.
> My use of iwctl is here to confirm It can works.
> I need to register a Agent in order to calculate the PSK to make the ssid.psk config file but I cannot figure out how Agent registering works.
> What I understand in the python example is that I should create my own Agent, that implements the same method and properties form the documentation.
> And so I was wondering if only for test purposes I can be able to use the iwctl Agent in order to connect to my WPA2 network.
>

If it helps you, we have written an MIT-licensed iwd_client lib, based
on libell for DBUS. Written in C. It is intended to be used by some
stand alone device (embedded device) to scan and configure SSID+WPA
PSK from some daemon. In our case it is over a bluetooth connection.
Sadly, it is only half of the daemon we have for this, so there is no
example, nor any more documentation than the code itself. I can't
support you with it. Code is below to use as you want. It has a basic
iwd_client_connect("ssid", "key") and handles agenting in the
background. It does need the libell mainloop to be running.

https://github.com/orbital-systems/iwd_client