Re: [Vala] Segmentation fault with d-bus and networkmanager

[Jose Luis Navarro <jlnavarro111 gmail com>]

I think I found the problem, I logged dbus-monitor parameters that are
passed and I compared with those who are sent when I create the network
manually this is the difference:

Manualy mode:

   array [
...
            dict entry(
               string "ssid"
               variant                   array of bytes "foobar"
            )
...
   ]

with vala code:

   array [
...
            dict entry(
               string "ssid"
               variant                   array of bytes [
                     66 6f 6f 62 61 72 00
                  ]
            )
...
   ]

I set this parameter in this way:
...
HashTable<string,Variant> s_wifi = new HashTable<string,Variant>(str_hash,
str_equal);
s_wifi.insert("ssid", new Variant.bytestring("foobar"));
...

And most strange is that the connection is created O_o

How do I may set that parameter?

2011/10/3 Jose Luis Navarro <jlnavarro111 gmail com>

> Goog point I'm going to try it.
> Thanks
>
>
> 2011/10/1 JM <interflug1 gmx net>
>
> > I recommend using dbus-monitor from one terminal and start your program
> > from a second. Then (after your program crashed) stop dbus-monitor and
> > find the message sent by your program and check if the containing data
> > was packaged according to the specification of NetworkManager.
> > regards
> >
> >
> > > Hi,
> > >
> > > I'm trying to create a new wifi connection by d-bus but I get
> > "Segmentation
> > > fault" with following code. What am I doing wrong?
> > > Vala version: 0.13.4.6-33e1
> > > Thanks,
> > >
> > > /*
> > > valac --pkg gio-2.0 create.vala
> > > */
> > >
> > > [DBus (name = "org.freedesktop.NetworkManagerSettings")]
> > > interface NMSettings : Object {
> > >     public abstract ObjectPath AddConnection (HashTable<string,
> > > HashTable<string,Variant>> hs) throws IOError;
> > > }
> > >
> > > int main (string[] args) {
> > >
> > > var uuid = "cabfaf9e-4043-4afb-8506-0e6f4a225636";
> > >
> > > HashTable<string,Variant> s_con = new
> > HashTable<string,Variant>(str_hash,
> > > str_equal);
> > > s_con.insert("id", new Variant.string("My AdHoc"));
> > > s_con.insert("uuid", new Variant.string(uuid));
> > > s_con.insert("type", new Variant.string("802-11-wireless"));
> > > s_con.insert("name", new Variant.string("connection"));
> > > s_con.insert("autoconnect", new Variant.boolean(false));
> > >
> > > HashTable<string,Variant> s_wifi = new
> > HashTable<string,Variant>(str_hash,
> > > str_equal);
> > > s_wifi.insert("ssid", new Variant.bytestring("foobar"));
> > > s_wifi.insert("mode", new Variant.string("adhoc"));
> > > s_wifi.insert("security", new
> > Variant.string("802-11-wireless-security"));
> > > s_wifi.insert("name", new Variant.string("802-11-wireless"));
> > >
> > > HashTable<string,Variant> s_wsec = new
> > HashTable<string,Variant>(str_hash,
> > > str_equal);
> > > s_wsec.insert("key-mgmt", new Variant.string("none"));
> > > s_wsec.insert("wep-key0", new
> > Variant.string("0123456789abcdef0123456789"));
> > > s_wsec.insert("name", new Variant.string("802-11-wireless-security"));
> > >
> > > HashTable<string,Variant> s_ip4 = new
> > HashTable<string,Variant>(str_hash,
> > > str_equal);
> > > s_ip4.insert("method", new Variant.string("link-local"));
> > > s_ip4.insert("name", new Variant.string("ipv4"));
> > >
> > > HashTable<string, HashTable<string,Variant>> con = new HashTable<string,
> > > HashTable<string,Variant>>(str_hash, str_equal);
> > > con.insert("connection", s_con);
> > > con.insert("802-11-wireless", s_wifi);
> > > con.insert("802-11-wireless-security", s_wsec);
> > > con.insert("ipv4", s_ip4);
> > >
> > >     try {
> > >
> > >         NMSettings nm_set = Bus.get_proxy_sync (BusType.SYSTEM,
> > > "org.freedesktop.NetworkManagerSystemSettings",
> > > "/org/freedesktop/NetworkManagerSettings");
> > >  var obj_path = nm_set.AddConnection(con);
> > >
> > >     } catch (IOError e) {
> > >         stderr.printf ("%s\n", e.message);
> > >         return 1;
> > >     }
> > >
> > >     return 0;
> > > }
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