After moving to latest mac OS Sierra and Xcode 8, LayerKit(version 0.22.0) stop working on simulator. Always return error:
Error Domain=com.layer.LayerKit.Security Code=-34018 "Generation of key pair failed with result code -34018." UserInfo={NSLocalizedDescription=Generation of key pair failed with result code -34018., parameters={
atag = <63657274 732d7472 75737465 642e6c79 72382e6e 65743a43 46363431 3046342d 42383546 2d313145 342d4134 42452d34 37424235 46303235 444534>;
bsiz = 1024;
pdmn = ck;
perm = 1;
type = 42;
}}
Does anyone have the same problem?
Enable "Keychain Sharing" fix this issue. Look this thread https://forums.developer.apple.com/thread/60617
Related
I've started a project where I need to actively (all the time) scan for BLE Devices. I'm on Linux, using Bluez 5.49 and I use Python to communicate with dbus 1.10.20).
I' m able to start scanning, stop scanning with bluetoothctl and get the BLE Advertisement data through DBus (GetManagedObjects() of the BlueZ interface). The problem I have is when I let the scanning for many hours, dbus-deamon start to take more and more of the RAM and I'm not able to find how to "flush" what dbus has gathered from BlueZ. Eventually the RAM become full and Linux isn't happy.
So I've tried not to scan for the entire time, that would maybe let the Garbage collector do its cleanup. It didn't work.
I've edited the /etc/dbus-1/system.d/bluetooth.conf to remove any interface that I didn't need
<policy user="root">
<allow own="org.bluez"/>
<allow send_destination="org.bluez"/>
</policy>
That has slow down the RAM build-up but didn't solve the issue.
I've found a way to inspect which connection has byte waiting and confirmed that it comes from blueZ
Connection :1.74 with pid 3622 '/usr/libexec/bluetooth/bluetoothd --experimental ' (org.bluez):
IncomingBytes=1253544
PeakIncomingBytes=1313072
OutgoingBytes=0
PeakOutgoingBytes=210
and lastly, I've found that someone needs to read what is waiting in DBus in order to free the memory. So I've found this : https://stackoverflow.com/a/60665430/15325057
And I receive the data that BlueZ is sending over but the memory still built-up.
The only way I know to free up dbus is to reboot linux. which is not ideal.
I'm coming at the end of what I understand of DBus and that's why I'm here today.
If you have any insight that could help me to free dbus from BlueZ messages, it would be highly appreciated.
Thanks in advance
EDIT Adding the DBus code i use to read the discovered devices:
#!/usr/bin/python3
import dbus
BLUEZ_SERVICE_NAME = "org.bluez"
DBUS_OM_IFACE = "org.freedesktop.DBus.ObjectManager"
DEVICES_IFACE = "org.bluez.Device1"
def main_loop(subproc):
devinfo = None
objects = None
dbussys = dbus.SystemBus()
dbusconnection = dbussys.get_object(BLUEZ_SERVICE_NAME, "/")
bluezInterface = dbus.Interface(dbusconnection, DBUS_OM_IFACE)
while True:
try:
objects = bluezInterface.GetManagedObjects()
except dbus.DBusException as err:
print("dbus Error : " + str(err))
pass
all_devices = (str(path) for path, interfaces in objects.items() if DEVICES_IFACE in interfaces.keys())
for path, interfaces in objects.items():
if "org.bluez.Adapter1" not in interfaces.keys():
continue
device_list = [d for d in all_devices if d.startswith(path + "/")]
for dev_path in device_list:
properties = objects[dev_path][DEVICES_IFACE]
if "ServiceData" in properties.keys() and "Name" in properties.keys() and "RSSI" in properties.keys():
#[... Do someting...]
Indeed, Bluez flushes memory when you stop discovering. So in order to scan continuously you need start and stop the discovery all the time. I discover for 6 seconds, wait 1 second and then start discovering for 6 seconds again...and so on. If you check the logs you will see it deletes a lot of stuff when stopping discovery.
I can't really reproduce your error exactly but my system is not happy running that fast while loop repeatedly getting the data from GetManagedObjects.
Below is the code I ran based on your code with a little bit of refactoring...
import dbus
BLUEZ_SERVICE_NAME = "org.bluez"
DBUS_OM_IFACE = "org.freedesktop.DBus.ObjectManager"
ADAPTER_IFACE = "org.bluez.Adapter1"
DEVICES_IFACE = "org.bluez.Device1"
def main_loop():
devinfo = None
objects = None
dbussys = dbus.SystemBus()
dbusconnection = dbussys.get_object(BLUEZ_SERVICE_NAME, "/")
bluezInterface = dbus.Interface(dbusconnection, DBUS_OM_IFACE)
while True:
objects = bluezInterface.GetManagedObjects()
for path in objects:
name = objects[path].get(DEVICES_IFACE, {}).get('Name')
rssi = objects[path].get(DEVICES_IFACE, {}).get('RSSI')
service_data = objects[path].get(DEVICES_IFACE, {}).get('ServiceData')
if all((name, rssi, service_data)):
print(f'{name} # {rssi} = {service_data}')
#[... Do someting...]
if __name__ == '__main__':
main_loop()
I'm not sure what you are trying to do in the broader project but if I can make some recommendations...
A more typical way of scanning for service/manufacturer data is to subscribe to signals in D-Bus that trigger callbacks when something of interest happens.
Below is some code I use to look for iBeacons and Eddystone beacons. This runs using the GLib event loop which is maybe something you have ruled out but is more efficient on resources.
It does use different Python dbus bindings as I find pydbus more "pythonic".
I have left the code in processing the beacons as it might be a useful reference.
import argparse
from gi.repository import GLib
from pydbus import SystemBus
import uuid
DEVICE_INTERFACE = 'org.bluez.Device1'
remove_list = set()
def stop_scan():
"""Stop device discovery and quit event loop"""
adapter.StopDiscovery()
mainloop.quit()
def clean_beacons():
"""
BlueZ D-Bus API does not show duplicates. This is a
workaround that removes devices that have been found
during discovery
"""
not_found = set()
for rm_dev in remove_list:
try:
adapter.RemoveDevice(rm_dev)
except GLib.Error as err:
not_found.add(rm_dev)
for lost in not_found:
remove_list.remove(lost)
def process_eddystone(data):
"""Print Eddystone data in human readable format"""
_url_prefix_scheme = ['http://www.', 'https://www.',
'http://', 'https://', ]
_url_encoding = ['.com/', '.org/', '.edu/', '.net/', '.info/',
'.biz/', '.gov/', '.com', '.org', '.edu',
'.net', '.info', '.biz', '.gov']
tx_pwr = int.from_bytes([data[1]], 'big', signed=True)
# Eddystone UID Beacon format
if data[0] == 0x00:
namespace_id = int.from_bytes(data[2:12], 'big')
instance_id = int.from_bytes(data[12:18], 'big')
print(f'\t\tEddystone UID: {namespace_id} - {instance_id} \u2197 {tx_pwr}')
# Eddystone URL beacon format
elif data[0] == 0x10:
prefix = data[2]
encoded_url = data[3:]
full_url = _url_prefix_scheme[prefix]
for letter in encoded_url:
if letter < len(_url_encoding):
full_url += _url_encoding[letter]
else:
full_url += chr(letter)
print(f'\t\tEddystone URL: {full_url} \u2197 {tx_pwr}')
def process_ibeacon(data, beacon_type='iBeacon'):
"""Print iBeacon data in human readable format"""
print('DATA:', data)
beacon_uuid = uuid.UUID(bytes=bytes(data[2:18]))
major = int.from_bytes(bytearray(data[18:20]), 'big', signed=False)
minor = int.from_bytes(bytearray(data[20:22]), 'big', signed=False)
tx_pwr = int.from_bytes([data[22]], 'big', signed=True)
print(f'\t\t{beacon_type}: {beacon_uuid} - {major} - {minor} \u2197 {tx_pwr}')
def ble_16bit_match(uuid_16, srv_data):
"""Expand 16 bit UUID to full 128 bit UUID"""
uuid_128 = f'0000{uuid_16}-0000-1000-8000-00805f9b34fb'
return uuid_128 == list(srv_data.keys())[0]
def on_iface_added(owner, path, iface, signal, interfaces_and_properties):
"""
Event handler for D-Bus interface added.
Test to see if it is a new Bluetooth device
"""
iface_path, iface_props = interfaces_and_properties
if DEVICE_INTERFACE in iface_props:
on_device_found(iface_path, iface_props[DEVICE_INTERFACE])
def on_device_found(device_path, device_props):
"""
Handle new Bluetooth device being discover.
If it is a beacon of type iBeacon, Eddystone, AltBeacon
then process it
"""
address = device_props.get('Address')
address_type = device_props.get('AddressType')
name = device_props.get('Name')
alias = device_props.get('Alias')
paired = device_props.get('Paired')
trusted = device_props.get('Trusted')
rssi = device_props.get('RSSI')
service_data = device_props.get('ServiceData')
manufacturer_data = device_props.get('ManufacturerData')
if address.casefold() == '00:c3:f4:f1:58:69':
print('Found mac address of interest')
if service_data and ble_16bit_match('feaa', service_data):
process_eddystone(service_data['0000feaa-0000-1000-8000-00805f9b34fb'])
remove_list.add(device_path)
elif manufacturer_data:
for mfg_id in manufacturer_data:
# iBeacon 0x004c
if mfg_id == 0x004c and manufacturer_data[mfg_id][0] == 0x02:
process_ibeacon(manufacturer_data[mfg_id])
remove_list.add(device_path)
# AltBeacon 0xacbe
elif mfg_id == 0xffff and manufacturer_data[mfg_id][0:2] == [0xbe, 0xac]:
process_ibeacon(manufacturer_data[mfg_id], beacon_type='AltBeacon')
remove_list.add(device_path)
clean_beacons()
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('-d', '--duration', type=int, default=0,
help='Duration of scan [0 for continuous]')
args = parser.parse_args()
bus = SystemBus()
adapter = bus.get('org.bluez', '/org/bluez/hci0')
bus.subscribe(iface='org.freedesktop.DBus.ObjectManager',
signal='InterfacesAdded',
signal_fired=on_iface_added)
mainloop = GLib.MainLoop()
if args.duration > 0:
GLib.timeout_add_seconds(args.duration, stop_scan)
adapter.SetDiscoveryFilter({'DuplicateData': GLib.Variant.new_boolean(False)})
adapter.StartDiscovery()
try:
print('\n\tUse CTRL-C to stop discovery\n')
mainloop.run()
except KeyboardInterrupt:
stop_scan()
I was working on QR code scanner app on iOS where i was getting output AVCaptureOutput on the delegate method captureOutput:didOutputMetadataObjects:fromConnection:.
It was working perfectly on swift 3. After I've updated to xcode 9 and swift 4, it stopped working.
Okay I've found an update here.
Found that AVCaptureMetadataOutputObjectsDelegate method is changed
from
captureOutput(_ captureOutput: AVCaptureOutput!, didOutputMetadataObjects metadataObjects: [Any]!, from connection: AVCaptureConnection!)
to
metadataOutput(_ output: AVCaptureMetadataOutput, didOutput metadataObjects: [AVMetadataObject], from connection: AVCaptureConnection)
After changing this delegate method, its working good now.
in Swift 4:
Replace
let metadataOutput = AVCaptureMetadataOutput()
metadataOutput.setMetadataObjectsDelegate(self, queue: DispatchQueue.main)
metadataOutput.metadataObjectTypes = metadataOutput.availableMetadataObjectTypes
With:
let metadataOutput = AVCaptureMetadataOutput()
metadataOutput.setMetadataObjectsDelegate(self, queue: DispatchQueue.main)
let supportedCodeTypes = [AVMetadataObject.ObjectType.upce,
AVMetadataObject.ObjectType.code39,
AVMetadataObject.ObjectType.code39Mod43,
AVMetadataObject.ObjectType.code93,
AVMetadataObject.ObjectType.code128,
AVMetadataObject.ObjectType.ean8,
AVMetadataObject.ObjectType.ean13,
AVMetadataObject.ObjectType.aztec,
AVMetadataObject.ObjectType.pdf417,
AVMetadataObject.ObjectType.qr]
metadataOutput.metadataObjectTypes = supportedCodeTypes
i'm running into an error in trying to start up the selenium firefox driver. it seems like others have hit snags at this step, and there is no readily available solution online, so hopefully this question will be broadly helpful. it seems like firefox is failing to establish an http server interface when initiated through selenium's driver. it appears that i can run firefox from the command line with no errors.
i should specify that i am doing this via ssh login to a linux container. i'm running python2.7 on Ubuntu 14.04 LTS (GNU/Linux 3.16.3-elastic x86_64). i have the latest version of selenium (2.44) installed, and i'm using firefox 34.0. i'm using xvfb to spoof a display.
below is my code, the error logs, and some related source code.
from selenium import webdriver
d = webdriver.Firefox()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/firefox/webdriver.py", line 59, in __init__
self.binary, timeout),
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/firefox/extension_connection.py", line 47, in __init__
self.binary.launch_browser(self.profile)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/firefox/firefox_binary.py", line 66, in launch_browser
self._wait_until_connectable()
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/firefox/firefox_binary.py", line 105, in _wait_until_connectable
raise WebDriverException("Can't load the profile. Profile "
selenium.common.exceptions.WebDriverException: Message: Can't load the profile. Profile Dir: %s If you specified a log_file in the FirefoxBinary constructor, check it for details.
that error is raised here, due to a timeout:
def _wait_until_connectable(self):
"""Blocks until the extension is connectable in the firefox."""
count = 0
while not utils.is_connectable(self.profile.port):
if self.process.poll() is not None:
# Browser has exited
raise WebDriverException("The browser appears to have exited "
"before we could connect. If you specified a log_file in "
"the FirefoxBinary constructor, check it for details.")
if count == 30:
self.kill()
raise WebDriverException("Can't load the profile. Profile "
"Dir: %s If you specified a log_file in the "
"FirefoxBinary constructor, check it for details.")
count += 1
time.sleep(1)
return True
in the log_file:
tail -f logs/firefox_binary.log
1418661895753 addons.xpi DEBUG checkForChanges
1418661895847 addons.xpi DEBUG No changes found
1418661895853 addons.manager DEBUG Registering shutdown blocker for XPIProvider
1418661895854 addons.manager DEBUG Registering shutdown blocker for LightweightThemeManager
1418661895857 addons.manager DEBUG Registering shutdown blocker for OpenH264Provider
1418661895858 addons.manager DEBUG Registering shutdown blocker for PluginProvider
System JS : ERROR (null):0 - uncaught exception: 2147746065
JavaScript error: file:///tmp/tmplkLsLs/extensions/fxdriver#googlecode.com/components/driver-component.js, line 11507: NS_ERROR_NOT_AVAILABLE: Component is not available'Component is not available' when calling method: [nsIHttpServer::start]
*** Blocklist::_preloadBlocklistFile: blocklist is disabled
1418661908552 addons.manager DEBUG Registering shutdown blocker for <unnamed-provider>
one more point of information. early on, in the firefox driver initalization, socket.bind(('127.0.0.1',0)) was failing with a "can't assign requested address" error. i changed the location to (0.0.0.0,0) and edited the localhost entry in my /etc/hosts, and was able to bind that way. not sure if that could be causing the current failure though.
VV edits per louis's request VV . i specify the two lines where i change the localhost address.
def free_port():
"""
Determines a free port using sockets.
"""
free_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
free_socket.bind(('0.0.0.0', 0)) # changed from 127.0.0.1
free_socket.listen(5)
port = free_socket.getsockname()[1]
free_socket.close()
return port
def is_connectable(port):
"""
Tries to connect to the server at port to see if it is running.
:Args:
- port: The port to connect.
"""
try:
socket_ = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
socket_.settimeout(1)
socket_.connect(("0.0.0.0", port)) # changed again
socket_.close()
return True
except socket.error:
return False
here's the constructor from webdriver:
def __init__(self, firefox_profile=None, firefox_binary=None, timeout=30,
capabilities=None, proxy=None):
self.binary = firefox_binary
self.profile = firefox_profile
if self.profile is None:
self.profile = FirefoxProfile()
self.profile.native_events_enabled = (
self.NATIVE_EVENTS_ALLOWED and self.profile.native_events_enabled)
if self.binary is None:
self.binary = FirefoxBinary()
if capabilities is None:
capabilities = DesiredCapabilities.FIREFOX
if proxy is not None:
proxy.add_to_capabilities(capabilities)
RemoteWebDriver.__init__(self,
command_executor=ExtensionConnection("127.0.0.1", self.profile,
self.binary, timeout),
desired_capabilities=capabilities,
keep_alive=True)
self._is_remote = False
here's the constructor from extension_connector:
def __init__(self, host, firefox_profile, firefox_binary=None, timeout=30):
self.profile = firefox_profile
self.binary = firefox_binary
HOST = host
if self.binary is None:
self.binary = FirefoxBinary()
if HOST is None:
HOST = "127.0.0.1"
PORT = utils.free_port()
self.profile.port = PORT
self.profile.update_preferences()
self.profile.add_extension()
self.binary.launch_browser(self.profile)
_URL = "http://%s:%d/hub" % (HOST, PORT)
RemoteConnection.__init__(
self, _URL, keep_alive=True)
in posting my edits to louis's comment, i saw that my localhost issue turned up in other locations, as the host is hardcoded in twice more. i had my server master address the issue, changed everything in the source back to 127, and the problem was solved. thanks for prompting me, #louis, and i'm sorry my question wasn't more interesting. will accept my own answer after 2 days when SO allows me.
Compiling the same project under OSX 10.8.5 and 10.9, I have found that runningApplications does not work with the same function as mentioned below:
-(void)killProcessesNamed:(NSString*)appName
{
for ( id app in [[NSWorkspace sharedWorkspace] runningApplications] )
{
if ( [appName isEqualToString:[[app executableURL] lastPathComponent]] )
{
[app terminate];
}
}
}
Looking at NSRunningApplication.h I've found this:
- (NSArray *)runningApplications NS_AVAILABLE_MAC(10_6);
I do not know if it is really deprecated, but I get a warnings about multiple ambiguous method found in NSRunningApplication.h and also in NSTask.h both regarding:
- (BOOL)terminate; // in NSRunningApplication.h
- (void)terminate; // in NSTask.h
therefore the warning disappears if I change terminated in forceTerminate:
//[app terminate];
[app forceTerminate];
The problem is that in Mavericks does not want to kill the process/app indicated.
To be more clear, the above warning appears only if the project is under ARC.
thanks
I have written a sample KMDF driver. I dont know if I did every thing right but have seen KMDF driver printing Debug message in DebugView utility - when I added this driver as new hardware. It also showed up as "Sample Device" under device manager.
Now I want to write a sample client that could call this Driver - so I can establish a connection between driver and client. I read that we need to use 'CreateFile' and 'DEviceIOControl' etc. But I am not able to get a start on it.
Can you please guide me around creating sample client to access the sample KMDF driver ?
My INF file for the driver looks like this :-
***My INF FILE****
; myshelldriver.INF
; Windows installation file for installing the myshelldriver driver
; Copyright (c) Microsoft Corporation All rights Reserved
;
; Installation Notes:
;
; Using Devcon: Type "devcon install myshelldriver.inf myshelldriver" to install
;
[Version]
Signature="$WINDOWS NT$"
Class=Sample
ClassGuid={78A1C341-4539-11d3-B88D-00C04FAD5171}
Provider=%MSFT%
DriverVer=09/24/2012,1.0
CatalogFile=myshell.cat
[DestinationDirs]
DefaultDestDir = 12
[ClassInstall32]
Addreg=SampleClassReg
[SampleClassReg]
HKR,,,0,%ClassName%
HKR,,Icon,,-5
[DiskCopyfiles]
wdfmyshelldriver.sys
[SourceDisksNames]
1=%InstDisk%,
[SourceDisksFiles]
Wdfmyshelldriver.sys=1
[Manufacturer]
%MSFT% = DiskDevice,NTAMD64
; For Win2K
[DiskDevice]
%DiskDevDesc% = DiskInstall, wdfmyshelldriver
; For XP and later
[DiskDevice.NTAMD64]
%DiskDevDesc% = DiskInstall, wdfmyshelldriver
[DiskInstall.NT]
CopyFiles = DiskCopyfiles
;;specify that this is the installation
;;for nt based systems.
[DriverInstall.ntx86]
DriverVer=09/24/2012,1.0
CopyFiles=DriverCopyFiles
[DiskInstall.NT.Services]
AddService = wdfmyshelldriver, %SPSVCINST_ASSOCSERVICE%, DiskServiceInst
[DiskServiceInst]
ServiceType = %SERVICE_KERNEL_DRIVER%
StartType = %SERVICE_DEMAND_START%
ErrorControl = %SERVICE_ERROR_NORMAL%
DisplayName = %DiskServiceDesc%
ServiceBinary = %12%\Wdfmyshelldriver.sys
AddReg = DiskAddReg
[DiskAddReg]
HKR, "Parameters", "BreakOnEntry", %REG_DWORD%, 0x00000000
HKR, "Parameters", "DiskSize", %REG_DWORD%, 0x00100000
HKR, "Parameters", "DriveLetter", %REG_SZ%, "R:"
HKR, "Parameters", "RootDirEntries", %REG_DWORD%, 0x00000200
HKR, "Parameters", "SectorsPerCluster", %REG_DWORD%, 0x00000002
[Strings]
MSFT = "Microsoft"
ClassName = "My Shell Device"
DiskDevDesc = "WDF My Shell Driver"
DiskServiceDesc = "myshelldriver Driver"
InstDisk = "myshelldriver Install Disk"
;*******************************************
;Handy macro substitutions (non-localizable)
SPSVCINST_ASSOCSERVICE = 0x00000002
SERVICE_KERNEL_DRIVER = 1
SERVICE_DEMAND_START = 3
SERVICE_ERROR_NORMAL = 1
REG_DWORD = 0x00010001
REG_SZ = 0x00000000
**** END OF INF FILE***
There are many relevant samples in the WDK. For example, take a look at KMDF Echo sample.
First you will need to name your object.
Second you will need to do at least one of the following:
Create a Symbolic link in the \GLOBAL??\
Register a Device Interface.
Option 1 will let you do the simple
CreateFile("\\\\.\\<device_name>, ...);
Option 2 and you will need to use the Setup DI Api routines to find your device to open it.