Discovery does not work

I can neither get my laptop discovered nor discover my apple devices from the laptop.

My laptop configuration:

Arch Linux / x64 / 4.19.46 LTS kernel
Wireless card: Intel 7260 (I have already used it in a monitor mode with airdump-ng, so it works fine)
Latest owl from git (I have created an AUR package)

My iPhone SE and iPad Air2 have the latest stable iOS 12.3.1.

I have tried various setups on my laptop:

Connected to 5 GHz WiFi network (the same as the Apple devices) with NetworkManager. The result seems to be that owl couldn't get any useful information:

19:21:13 INFO : WLAN device: mon0 (addr 28:b2:bd:3:b9:d9)
19:21:13 INFO : Host device: awdl0
19:21:13 DEBUG: switch channel to 6 (slot 0)
19:21:13 TRACE: send MIF
19:21:13 TRACE: Send data (len 126) to 33:33:0:0:0:16 (0.0.38)
19:21:13 TRACE: send MIF
19:21:13 TRACE: send PSF
19:21:13 TRACE: send MIF
19:21:13 TRACE: send PSF
19:21:13 TRACE: send MIF

opendrop on both receive and find (with -d flag) was silent except the initial message.

Connected to 2.4 GHz WiFi network (reconnected all the Apple devices there as well) with NetworkManager. The result was ERROR: unable to inject packet (send: Resource temporarily unavailable) output from owl.

Disconnected from all the WiFi networks (the Apple devices are left connected to 2.4 GHz WiFi network). This mode was the most promising, at least I started getting some useful messages on the owl side:

19:27:58 INFO : WLAN device: wlp8s0mon (addr 28:b2:bd:3:b9:d9)
19:27:58 INFO : Host device: awdl0
19:27:58 DEBUG: switch channel to 6 (slot 0)
19:28:27 DEBUG: peer 3e:50:c6:71:d8:5f () changed channel sequence to 149,149,149,149,0,0,0,0,6,149,149,149,0,0,0,0
19:28:27 DEBUG: new election tree: 28:b2:bd:3:b9:d9 -> 3e:50:c6:71:d8:5f (met 60, ctr 174)
19:28:27 INFO : add peer 3e:50:c6:71:d8:5f ()
19:28:29 DEBUG: peer 3e:50:c6:71:d8:5f () changed channel sequence to 149,149,149,0,0,0,0,0,6,149,149,0,0,0,0,0
19:28:32 DEBUG: new election tree: 28:b2:bd:3:b9:d9 -> 3e:50:c6:71:d8:5f -> da:65:4:e9:8d:fa (met 536, ctr 135)
19:28:34 DEBUG: peer 3e:50:c6:71:d8:5f () changed channel sequence to 149,0,0,0,0,0,0,0,6,149,149,0,0,0,0,0
19:28:35 DEBUG: peer 3e:50:c6:71:d8:5f () changed channel sequence to 149,149,149,149,0,0,0,0,6,6,6,6,0,0,0,0
19:28:37 DEBUG: peer 3e:50:c6:71:d8:5f () changed channel sequence to 149,149,149,0,0,0,0,0,6,6,6,0,0,0,0,0
19:28:46 DEBUG: peer 3e:50:c6:71:d8:5f () changed channel sequence to 149,0,0,0,0,0,0,0,6,6,6,0,0,0,0,0
...
19:32:47 INFO : remove peer 16:8c:3a:d8:ab:13 (iPad)
19:32:47 DEBUG: new election tree: 28:b2:bd:3:b9:d9 (met 60, ctr 0)
19:35:35 DEBUG: peer 4a:a7:d4:66:97:34 () changed channel sequence to 149,149,149,149,0,0,0,0,6,149,149,149,0,0,0,0
19:35:35 INFO : add peer 4a:a7:d4:66:97:34 (iPad)
19:35:35 DEBUG: new election tree: 28:b2:bd:3:b9:d9 -> 4a:a7:d4:66:97:34 (met 60, ctr 236)
19:35:37 DEBUG: peer 4a:a7:d4:66:97:34 (iPad) changed channel sequence to 149,149,149,0,0,0,0,0,6,149,149,0,0,0,0,0
19:35:42 DEBUG: peer 4a:a7:d4:66:97:34 (iPad) changed channel sequence to 149,0,0,0,0,0,0,0,6,149,149,0,0,0,0,0
19:35:43 DEBUG: peer 4a:a7:d4:66:97:34 (iPad) changed channel sequence to 149,0,0,0,0,0,0,0,6,6,6,0,0,0,0,0

NOTE: My iPhone has no name for some reason while my iPad has.

On the opendrop side I have seen a useful message only once:

$ opendrop find -d
2019-05-29 19:30:39,952 INFO     opendrop.cli: Looking for receivers. Press enter to stop ...
2019-05-29 19:31:52,144 DEBUG    opendrop.client: Add service c8d4309875b0._airdrop._tcp.local.
2019-05-29 19:31:52,144 DEBUG    opendrop.cli: AirDrop service found: iPad.local., fe80::148c:3aff:fed8:ab13:8770, ID c8d4309875b0
2019-05-29 19:31:52,144 DEBUG    opendrop.client: Send /Discover request

2019-05-29 19:32:16,459 DEBUG    opendrop.cli: Save discovery results to /home/frol/.opendrop/discover.last.json

I still could not send a file.

seemoo-lab / opendrop

Discovery does not work #1