On 08.10.2014 20:31, Dan Williams wrote:
> On Wed, 2014-10-08 at 00:10 +0200, poma wrote:
>> Starting Network Manager...
>> <info> NetworkManager (version 0.9.10.0-5.git20140704.fc21) is starting...
>> <info> WEXT support is enabled
>> <info> WiFi hardware radio set enabled
>> <info> Loaded device plugin: 
>> /usr/lib/NetworkManager/libnm-device-plugin-wifi.so
>> <info> WiFi enabled by radio killswitch; enabled by state file
>> <info> Networking is enabled by state file
>> Started Network Manager.
>> <info> (ra0): driver does not support SSID scans (scan_capa 0x00).
>> <info> (ra0): using WEXT for WiFi device control
>> <info> (ra0): new 802.11 WiFi device (driver: 'usb' ifindex: 5)
>> <info> (ra0): exported as /org/freedesktop/NetworkManager/Devices/4
>> <info> (ra0): device state change: unmanaged -> unavailable (reason 
>> 'managed') [10 20 2]
>> <info> (ra0): preparing device
>> <warn> (ra0): error 100 getting card mode
>> <error> [1412709645.317223] [platform/wifi/wifi-utils-wext.c:160] 
>> wifi_wext_set_mode(): (ra0): error setting mode 2
> 
> Ugh, looks like you're using WEXT, which is historically quite
> problematic because different drivers expected different sequences of
> WEXT requests.  Any driver that uses WEXT and is not upstream is
> automatically suspect, unfortunately...
> 
>> <info> wpa_supplicant started
>> <info> (ra0) supports 1 scan SSIDs
>> <info> (ra0): supplicant interface state: starting -> ready
>> <info> (ra0): device state change: unavailable -> disconnected (reason 
>> 'supplicant-available') [20 30 42]
>> <info> (ra0): supplicant interface state: ready -> disconnected
>> <info> (ra0) supports 1 scan SSIDs
>> <info> startup complete
>> <info> (ra0): supplicant interface state: disconnected -> inactive
>> ...
>> <info> (ra0): disconnecting for new activation request.
>> <info> (ra0): device state change: activated -> deactivating (reason 'none') 
>> [100 110 0]
>> <info> NetworkManager state is now DISCONNECTING
>> <info> (ra0): device state change: deactivating -> disconnected (reason 
>> 'none') [110 30 0]
>> <info> (ra0): deactivating device (reason 'none') [0]
>> <info> (ra0): canceled DHCP transaction, DHCP client pid 1144
>> <info> NetworkManager state is now DISCONNECTED
>> <info> Activation (ra0) starting connection 'bla'
>> <info> Activation (ra0) Stage 1 of 5 (Device Prepare) scheduled...
>> <warn> Connection disconnected (reason -3)
>> <info> (ra0): supplicant interface state: completed -> disconnected
>> <info> Activation (ra0) Stage 1 of 5 (Device Prepare) started...
>> <info> (ra0): device state change: disconnected -> prepare (reason 'none') 
>> [30 40 0]
>> <info> NetworkManager state is now CONNECTING
>> <info> Activation (ra0) Stage 2 of 5 (Device Configure) scheduled...
>> <info> Activation (ra0) Stage 1 of 5 (Device Prepare) complete.
>> <info> Activation (ra0) Stage 2 of 5 (Device Configure) starting...
>> <info> (ra0): device state change: prepare -> config (reason 'none') [40 50 
>> 0]
>> <info> Activation (ra0/wireless): connection 'bla' has security, and secrets 
>> exist.  No new secrets needed.
>> <info> Config: added 'ssid' value 'bla'
>> <info> Config: added 'mode' value '1'
>> <info> Config: added 'frequency' value '2412'
>> <info> Config: added 'key_mgmt' value 'NONE'
>> <info> Config: added 'auth_alg' value 'OPEN'
>> <info> Config: added 'wep_key0' value '<omitted>'
>> <info> Config: added 'wep_tx_keyidx' value '0'
>> <info> Activation (ra0) Stage 2 of 5 (Device Configure) complete.
>> <info> Config: set interface ap_scan to 2
>> <info> (ra0): supplicant interface state: disconnected -> associating
>> <warn> Activation (ra0/wireless): Ad-Hoc network creation took too long, 
>> failing activation.
> 
> The driver did not emit the SIOCGIWAP event, indicating that it had
> successfully completed Ad-Hoc AP setup.  This is a driver bug.
> 
>> <info> (ra0): device state change: config -> failed (reason 
>> 'supplicant-timeout') [50 120 11]
>> <info> NetworkManager state is now DISCONNECTED
>> <warn> Activation (ra0) failed for connection 'bla'
>> <warn> Connection disconnected (reason -3)
>> <info> (ra0): supplicant interface state: associating -> disconnected
>> <info> (ra0): device state change: failed -> disconnected (reason 'none') 
>> [120 30 0]
>> <info> (ra0): deactivating device (reason 'none') [0]
>> <warn> (ra0): error 100 getting card mode
>> <error> [1412717534.522258] [platform/wifi/wifi-utils-wext.c:160] 
>> wifi_wext_set_mode(): (ra0): error setting mode 2
>>
>>
>> IBSS works via Wicd although not reliable.
>> BTW AP/WPA2, is it possible at all?
> 
> NM supports AP mode if wpa_supplicant supports it on the device, but
> given the information you've provided here, the driver looks very
> fragile and I wouldn't expect it to work.  WPA2 may be possible, but
> again the driver is quite suspect.
> 
> The driver is just bad, I'm afraid...
> 
> Dan
> 

Thanks, 
whether the same(Ad-Hoc/IBSS & WEXT == unsupported) applies to this module also

- dmesg:
usb 2-3: new high-speed USB device number 3 using ehci-pci
usb 2-3: New USB device found, idVendor=0bda, idProduct=8171
usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 2-3: Product: RTL8188S WLAN Adapter 
usb 2-3: Manufacturer: Manufacturer Realtek 
usb 2-3: SerialNumber: 00e04c000001
r8712u: module is from the staging directory, the quality is unknown, you have 
been warned.
r8712u: Staging version
r8712u: register rtl8712_netdev_ops to netdev_ops
usb 2-3: r8712u: USB_SPEED_HIGH with 4 endpoints
usb 2-3: r8712u: Boot from EFUSE: Autoload OK
usb 2-3: r8712u: CustomerID = 0x0000
usb 2-3: r8712u: MAC Address from efuse = [...]
usb 2-3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
usbcore: registered new interface driver r8712u
r8712u 2-3:1.0 wlp0s4f1u3: renamed from wlan0
systemd-udevd[363]: renamed network interface wlan0 to wlp0s4f1u3
r8712u 2-3:1.0 wlp0s4f1u3: 1 RCR=0x153f00e
r8712u 2-3:1.0 wlp0s4f1u3: 2 RCR=0x553f00e
IPv6: ADDRCONF(NETDEV_UP): wlp0s4f1u3: link is not ready
...


- /etc/NetworkManager/system-connections/IBSS:
[connection]
id=IBSS
uuid=...
type=wifi
autoconnect=false
zone=public

[wifi]
ssid=IBSS
mode=adhoc
band=bg
channel=1
mac-address=[...]
security=802-11-wireless-security

[ipv6]
method=ignore
ip6-privacy=0

[ipv4]
method=shared


- journalctl:
Starting Network Manager...
<info> NetworkManager (version 0.9.10.0-5.git20140704.fc21) is starting...
<info> Read config: /etc/NetworkManager/NetworkManager.conf and conf.d: 
keyfile-plugin.conf
<info> WEXT support is enabled
<info> Loaded plugin keyfile: (c) 2007 - 2013 Red Hat, Inc.  To report bugs 
please use the NetworkManager mailing list.
<info> new connection /etc/NetworkManager/system-connections/IBSS
<info> new connection /etc/NetworkManager/system-connections/enp3s0
<info> new connection /etc/NetworkManager/system-connections/MBB
<info> monitoring kernel firmware directory '/lib/firmware'.
<info> WiFi hardware radio set enabled
<info> WWAN hardware radio set enabled
<info> Loaded device plugin: /usr/lib/NetworkManager/libnm-device-plugin-wifi.so
<info> Loaded device plugin: /usr/lib/NetworkManager/libnm-device-plugin-wwan.so
<info> WiFi enabled by radio killswitch; enabled by state file
<info> WWAN enabled by radio killswitch; enabled by state file
<info> WiMAX enabled by radio killswitch; enabled by state file
<info> Networking is enabled by state file
Started Network Manager.
<info> (lo): link connected
<info> (lo): carrier is ON
<info> (lo): new Generic device (driver: 'unknown' ifindex: 1)
<info> (lo): exported as /org/freedesktop/NetworkManager/Devices/0
<info> (enp3s0): carrier is OFF
<info> (enp3s0): new Ethernet device (driver: 'r8169' ifindex: 4)
<info> (enp3s0): exported as /org/freedesktop/NetworkManager/Devices/3
<info> (enp3s0): device state change: unmanaged -> unavailable (reason 
'managed') [10 20 2]
<info> (enp3s0): preparing device
<info> (wlp0s4f1u3): driver does not support SSID scans (scan_capa 0x00).
<info> (wlp0s4f1u3): using WEXT for WiFi device control
<info> (wlp0s4f1u3): new 802.11 WiFi device (driver: 'r8712u' ifindex: 5)
<info> (wlp0s4f1u3): exported as /org/freedesktop/NetworkManager/Devices/4
<info> (wlp0s4f1u3): device state change: unmanaged -> unavailable (reason 
'managed') [10 20 2]
<info> (wlp0s4f1u3): preparing device
<info> ModemManager available in the bus
<info> wpa_supplicant started
<info> (enp3s0): link connected
<info> (enp3s0): device state change: unavailable -> disconnected (reason 
'carrier-changed') [20 30 40]
<info> Auto-activating connection 'enp3s0'.
<info> Activation (enp3s0) starting connection 'enp3s0'
<info> Activation (enp3s0) Stage 1 of 5 (Device Prepare) scheduled...
<info> Activation (enp3s0) Stage 1 of 5 (Device Prepare) started...
<info> (enp3s0): device state change: disconnected -> prepare (reason 'none') 
[30 40 0]
<info> NetworkManager state is now CONNECTING
<info> Activation (enp3s0) Stage 2 of 5 (Device Configure) scheduled...
<info> Activation (enp3s0) Stage 1 of 5 (Device Prepare) complete.
<info> Activation (enp3s0) Stage 2 of 5 (Device Configure) starting...
<info> (enp3s0): device state change: prepare -> config (reason 'none') [40 50 
0]
<info> Activation (enp3s0) Stage 2 of 5 (Device Configure) successful.
<info> Activation (enp3s0) Stage 2 of 5 (Device Configure) complete.
<info> (wlp0s4f1u3) supports 1 scan SSIDs
<info> (wlp0s4f1u3): supplicant interface state: starting -> ready
<info> (wlp0s4f1u3): device state change: unavailable -> disconnected (reason 
'supplicant-available') [20 30 42]
<info> (wlp0s4f1u3): supplicant interface state: ready -> disconnected
<info> (wlp0s4f1u3) supports 1 scan SSIDs
<info> Activation (enp3s0) Stage 3 of 5 (IP Configure Start) scheduled.
<info> Activation (enp3s0) Stage 3 of 5 (IP Configure Start) started...
<info> (enp3s0): device state change: config -> ip-config (reason 'none') [50 
70 0]
<info> Activation (enp3s0) Stage 5 of 5 (IPv4 Configure Commit) scheduled...
<info> Activation (enp3s0) Stage 3 of 5 (IP Configure Start) complete.
<info> Activation (enp3s0) Stage 5 of 5 (IPv4 Commit) started...
<info> (enp3s0): device state change: ip-config -> ip-check (reason 'none') [70 
80 0]
<info> Activation (enp3s0) Stage 5 of 5 (IPv4 Commit) complete.
<info> (enp3s0): device state change: ip-check -> secondaries (reason 'none') 
[80 90 0]
<info> (enp3s0): device state change: secondaries -> activated (reason 'none') 
[90 100 0]
<info> NetworkManager state is now CONNECTED_LOCAL
<info> NetworkManager state is now CONNECTED_GLOBAL
<info> Policy set 'enp3s0' (enp3s0) as default for IPv4 routing and DNS.
<info> Activation (enp3s0) successful, device activated.
<info> startup complete
<info> (wlp0s4f1u3): supplicant interface state: disconnected -> inactive

$ nmcli connection up IBSS

<info> Activation (wlp0s4f1u3) starting connection 'IBSS'
<info> Activation (wlp0s4f1u3) Stage 1 of 5 (Device Prepare) scheduled...
<info> Activation (wlp0s4f1u3) Stage 1 of 5 (Device Prepare) started...
<info> (wlp0s4f1u3): device state change: disconnected -> prepare (reason 
'none') [30 40 0]
<info> Activation (wlp0s4f1u3) Stage 2 of 5 (Device Configure) scheduled...
<info> Activation (wlp0s4f1u3) Stage 1 of 5 (Device Prepare) complete.
<info> Activation (wlp0s4f1u3) Stage 2 of 5 (Device Configure) starting...
<info> (wlp0s4f1u3): device state change: prepare -> config (reason 'none') [40 
50 0]
<info> Activation (wlp0s4f1u3/wireless): connection 'IBSS' requires no 
security.  No secrets needed.
<info> Config: added 'ssid' value 'IBSS'
<info> Config: added 'mode' value '1'
<info> Config: added 'frequency' value '2412'
<info> Config: added 'freq_list' value 
'2412,2417,2422,2427,2432,2437,2442,2447,2452,2457,2462,2467,2472,2484'
<info> Config: added 'key_mgmt' value 'NONE'
<info> Activation (wlp0s4f1u3) Stage 2 of 5 (Device Configure) complete.
<info> Config: set interface ap_scan to 2
<info> (wlp0s4f1u3): supplicant interface state: inactive -> associating
<warn> Activation (wlp0s4f1u3/wireless): Ad-Hoc network creation took too long, 
failing activation.
<info> (wlp0s4f1u3): device state change: config -> failed (reason 
'supplicant-timeout') [50 120 11]
<warn> Activation (wlp0s4f1u3) failed for connection 'IBSS'
<info> (wlp0s4f1u3): device state change: failed -> disconnected (reason 
'none') [120 30 0]
<info> (wlp0s4f1u3): deactivating device (reason 'none') [0]
<warn> Connection disconnected (reason -3)
<info> (wlp0s4f1u3): supplicant interface state: associating -> disconnected
<warn> Couldn't disconnect supplicant interface: This interface is not 
connected.
<info> (wlp0s4f1u3): supplicant interface state: disconnected -> disabled


$ rpm -q wpa_supplicant 
wpa_supplicant-2.0-11.fc21.i686





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