RE: Problem activating hotspot
- From: Stéphane Boucher <sboucher d-box com>
- To: Stéphane Boucher <sboucher d-box com>, Dan Williams <dcbw redhat com>, "networkmanager-list gnome org" <networkmanager-list gnome org>
- Subject: RE: Problem activating hotspot
- Date: Wed, 19 Oct 2016 21:12:58 +0000
Solved.
Dbus-monitor did not tell the full story (at least not the way I invoked it). When I finally got to run
NetworkManager in gdb, using g_variant_print() revealed that I wasn't quite sending the right Settings,
type-wise.
The fix ends up being:
--- qtdbus_test.cpp.orig2016-10-19 16:28:37.026305491 -0400
+++ qtdbus_test.cpp2016-10-19 16:27:43.354350306 -0400
@@ -39,9 +39,9 @@
oConn["connection"]["autoconnect"] = QVariant(false);
oConn["connection"]["type"] = QString("802-11-wireless");
oConn["ipv4"]["method"] = QString("shared");
-oConn["ipv4"]["addresses"] = QList<QVariant>();
-oConn["ipv4"]["dns"] = QList<QVariant>();
-oConn["ipv4"]["routes"] = QList<QVariant>();
+oConn["ipv4"]["addresses"] = QVariant::fromValue(QList<QList<uint>>());
+oConn["ipv4"]["dns"] = QVariant::fromValue(QList<uint>());
+oConn["ipv4"]["routes"] = QVariant::fromValue(QList<QList<uint>>());
oConn["802-11-wireless-security"]["wep-key-type"] = QVariant((unsigned)1);
oConn["802-11-wireless-security"]["wep-key0"] = QString("87c77b7552");
oConn["802-11-wireless-security"]["key-mgmt"] = QString("none");
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-----Message d'origine-----
De : networkmanager-list [mailto:networkmanager-list-bounces gnome org] De la part de Stéphane Boucher
Envoyé : October 19, 2016 1:35 PM
À : Dan Williams <dcbw redhat com>; networkmanager-list gnome org
Objet : RE: Problem activating hotspot
Any suggestions?
I've been trying to build/run a debug version of NetworkManager (but without success so far - my own build
does not detect the wifi device...) :-(
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-----Message d'origine-----
De : Stéphane Boucher
Envoyé : October 18, 2016 4:17 PM
À : Stéphane Boucher <sboucher d-box com>; Dan Williams <dcbw redhat com>; networkmanager-list gnome org
Objet : RE: Problem activating hotspot
Let's see if I finally tamed the outlook beast... :-(
Simplified code.
--snip--snip--
#if 0
++ -g -std=c++11 -fPIC -o qtdbus_test qtdbus_test.cpp $(pkg-config --cflags --libs Qt5DBus)
exec ./qtdbus_test
#endif
#include <iostream>
#include <QtDBus/QtDBus>
#define NM_DBUS_SERVICE "org.freedesktop.NetworkManager"
#define NM_DBUS_PATH "/org/freedesktop/NetworkManager"
typedef QMap<QString, QMap<QString, QVariant>> Connection;
Q_DECLARE_METATYPE(Connection);
int main (int argc, char **argv)
{
QCoreApplication app(argc, argv);
qDBusRegisterMetaType<Connection>();
QDBusConnection oSysbus = QDBusConnection::systemBus();
QDBusInterface oNmI(NM_DBUS_SERVICE, NM_DBUS_PATH, NM_DBUS_SERVICE, oSysbus);
QDBusObjectPath oDeviceP("/org/freedesktop/NetworkManager/Devices/0");
std::string sMode("adhoc");
std::string sSsid("toaster");
QDBusObjectPath oAccessPointP("/");
QDBusInterface oDeviceI(NM_DBUS_SERVICE, oDeviceP.path(),
"org.freedesktop.NetworkManager.Device.Wireless", oSysbus);
::Connection oConn;
oConn["802-11-wireless"]["mode"] = QString::fromStdString(sMode);
oConn["802-11-wireless"]["ssid"] = QByteArray::fromStdString(sSsid);
oConn["802-11-wireless"]["security"] = QString("802-11-wireless-security");
QByteArray addr; addr[0] = 0xa0; addr[1] = 0x21; addr[2] = 0xb7; addr[3] = 0x4a; addr[4] = 0x9b; addr[5] =
0x80;
oConn["802-11-wireless"]["mac-address"] = addr; //oDeviceI.property("HwAddress");
oConn["connection"]["id"] = QString("Hotspot");
oConn["connection"]["autoconnect"] = QVariant(false);
oConn["connection"]["type"] = QString("802-11-wireless");
oConn["ipv4"]["method"] = QString("shared");
oConn["ipv4"]["addresses"] = QList<QVariant>();
oConn["ipv4"]["dns"] = QList<QVariant>();
oConn["ipv4"]["routes"] = QList<QVariant>();
oConn["802-11-wireless-security"]["wep-key-type"] = QVariant((unsigned)1);
oConn["802-11-wireless-security"]["wep-key0"] = QString("87c77b7552");
oConn["802-11-wireless-security"]["key-mgmt"] = QString("none");
QDBusReply<QDBusObjectPath> oResult = oNmI.call("AddAndActivateConnection",
QVariant::fromValue(oConn),
QVariant::fromValue(oDeviceP),
QVariant::fromValue(oAccessPointP));
if (! oResult.isValid()) {
std::cout << "err: " << __LINE__ << " " << oResult.error().message().toStdString() << std::endl;
} else {
std::cout << "AddAndActiveConnection-> " << oResult.value().path().toStdString() << std::endl;
exit(0);
}
exit (1);
}
--snip--snip--
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-----Message d'origine-----
De : networkmanager-list [mailto:networkmanager-list-bounces gnome org] De la part de Stéphane Boucher Envoyé
: October 18, 2016 2:13 PM À : Dan Williams <dcbw redhat com>; networkmanager-list gnome org Objet : RE:
Problem activating hotspot
(Apologies for the top post... blame it on outlook)
I added lines starting with # to indicate which call failed, and which succeeded.
I'll try to get a code snippet.
signal time=1476802044.025068 sender=org.freedesktop.DBus -> destination=:1.224 serial=2
path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameAcquired
string ":1.224"
signal time=1476802044.025104 sender=org.freedesktop.DBus -> destination=:1.224 serial=4
path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameLost
string ":1.224"
method call time=1476802047.121780 sender=:1.225 -> destination=org.freedesktop.NetworkManager serial=5
path=/org/freedesktop/NetworkManager; interface=org.freedesktop.NetworkManager; member=GetAllDevices # FIRST
CALL (my app) - THIS FAILED method call time=1476802047.132799 sender=:1.225 ->
destination=org.freedesktop.NetworkManager serial=15 path=/org/freedesktop/NetworkManager;
interface=org.freedesktop.NetworkManager; member=AddAndActivateConnection
array [
dict entry(
string "802-11-wireless"
array [
dict entry(
string "mac-address"
variant array of bytes [
a0 21 b7 4a 9b 80
]
)
dict entry(
string "mode"
variant string "adhoc"
)
dict entry(
string "security"
variant string "802-11-wireless-security"
)
dict entry(
string "ssid"
variant array of bytes "toaster"
)
]
)
dict entry(
string "802-11-wireless-security"
array [
dict entry(
string "key-mgmt"
variant string "none"
)
dict entry(
string "wep-key-type"
variant uint32 1
)
dict entry(
string "wep-key0"
variant string "87c77b7552"
)
]
)
dict entry(
string "connection"
array [
dict entry(
string "autoconnect"
variant boolean false
)
dict entry(
string "id"
variant string "Hotspot"
)
dict entry(
string "type"
variant string "802-11-wireless"
)
]
)
dict entry(
string "ipv4"
array [
dict entry(
string "addresses"
variant array [
]
)
dict entry(
string "dns"
variant array [
]
)
dict entry(
string "method"
variant string "shared"
)
dict entry(
string "routes"
variant array [
]
)
]
)
]
object path "/org/freedesktop/NetworkManager/Devices/0"
object path "/"
method call time=1476802047.211788 sender=:1.226 -> destination=:1.207 serial=240
path=/org/freedesktop/NetworkManager; interface=org.freedesktop.NetworkManager; member=GetPermissions method
call time=1476802047.288394 sender=:1.227 -> destination=:1.207 serial=240
path=/org/freedesktop/NetworkManager; interface=org.freedesktop.NetworkManager; member=GetPermissions method
call time=1476802056.956319 sender=:1.228 -> destination=org.freedesktop.NetworkManager serial=322
path=/org/freedesktop/NetworkManager; interface=org.freedesktop.NetworkManager; member=GetPermissions #
SECOND CALL (gnome applet) - THIS WORKED method call time=1476802062.780997 sender=:1.228 ->
destination=org.freedesktop.NetworkManager serial=337 path=/org/freedesktop/NetworkManager;
interface=org.freedesktop.NetworkManager; member=AddAndActivateConnection
array [
dict entry(
string "802-11-wireless"
array [
dict entry(
string "security"
variant string "802-11-wireless-security"
)
dict entry(
string "ssid"
variant array of bytes "toaster"
)
dict entry(
string "mode"
variant string "adhoc"
)
dict entry(
string "mac-address"
variant array of bytes [
a0 21 b7 4a 9b 80
]
)
]
)
dict entry(
string "connection"
array [
dict entry(
string "id"
variant string "Hotspot"
)
dict entry(
string "autoconnect"
variant boolean false
)
dict entry(
string "type"
variant string "802-11-wireless"
)
]
)
dict entry(
string "ipv4"
array [
dict entry(
string "addresses"
variant array [
]
)
dict entry(
string "dns"
variant array [
]
)
dict entry(
string "method"
variant string "shared"
)
dict entry(
string "routes"
variant array [
]
)
]
)
dict entry(
string "802-11-wireless-security"
array [
dict entry(
string "wep-key-type"
variant uint32 1
)
dict entry(
string "wep-key0"
variant string "68a7ff97a0"
)
dict entry(
string "key-mgmt"
variant string "none"
)
]
)
]
object path "/org/freedesktop/NetworkManager/Devices/0"
object path "/"
STÉPHANE BOUCHER
Consultant software
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-----Message d'origine-----
De : Dan Williams [mailto:dcbw redhat com] Envoyé : October 18, 2016 2:00 PM À : Stéphane Boucher <sboucher
d-box com>; networkmanager-list gnome org Objet : Re: Problem activating hotspot
On Tue, 2016-10-18 at 15:26 +0000, Stéphane Boucher wrote:
I’m on Ubuntu 16.04.1.
I’m using QDBus to interact with NetworkManager.
At the time I do all of the following, there’s no existing
/org/freedesktop/NetworkManager/Settings/?? For the Hotspot.
When I call AddAndActivateConnection, I get the error: “A 'wireless'
setting is required if no AP path was given.”
This would indicate the partial connection dict you're sending to NetworkManager as part of the
AddAndActivateConnection call doesn't have all the required properties.
What NM needs here is either the object path to an existing AP that it can pull the SSID and security
settings from, or you need to specify those manually (which you must do here because you're doing a hotspot).
Apparently it's not getting that from the D-Bus method call, or there's a bug in the code...
Can you share sanitized/condensed code that shows how you're calling AddAndActivate?
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