On Tue, 2015-10-27 at 18:16 +0100, simo wrote: > Hi, I am Simon and I am new in this mail list. > > I am experiencing problems enabling encryption key after creating an > IBSS network through wpa_supplicant. It looks like the error is coming from the kernel mac80211/cfg80211 WiFi stack in nl80211_key_allowed(). That function returns an error if there is not yet any "current_bss", which is probably the case here. To me it looks like a mismatch in expectations between the kernel and wpa_supplicant about how IBSS WEP is supposed to be configured. wpas_start_assoc_cb() - sets up parameters for IBSS create/join -- kernel cfg80211 has current_bss = NULL wpas_start_assoc_cb() calls wpa_set_wep_keys() -- kernel cfg80211 rejects set_keys request because current_bss == NULL wpas_start_assoc_cb() calls wpa_drv_associate() to being association -- kernel driver creates new IBSS, sends EVENT_IBSS_JOINED -- kernel cfg80211 calls __cfg80211_ibss_joined() and sets current_bss What's odd is that none of this code in the kernel or supplicant has really changed since early 2013, so its either been broken for a long time, or I'm missing something completely about when current_bss gets set. Dan > wlan0: Trying to associate with SSID 'my-net-302' > wlan0: Cancelling scan request > wlan0: WPA: clearing own WPA/RSN IE > wlan0: Automatic auth_alg selection: 0x1 > wlan0: WPA: clearing AP WPA IE > wlan0: WPA: clearing AP RSN IE > wlan0: WPA: clearing own WPA/RSN IE > wpa_driver_nl80211_set_key: ifindex=3 (wlan0) alg=1 addr=(nil) key_idx=0 > set_tx=1 seq_len=0 key_len=5 > nl80211: KEY_DATA - hexdump(len=5): [REMOVED] > nl80211: set_key failed; err=-67 Link has been severed) ^^^ the error <snip> > nl80211: Event message available > nl80211: Drv Event 43 (NL80211_CMD_JOIN_IBSS) received for wlan0 > nl80211: IBSS 12:24:21:59:87:d0 joined > nl80211: IBSS-joined on 2412 MHz > nl80211: Operating frequency for the associated BSS from scan results: > 2412 MHz > nl80211: IBSS on frequency 2412 MHz > wlan0: Event ASSOC (0) received > wlan0: State: ASSOCIATING -> ASSOCIATED Then reports success creating/joining the adhoc network. But of course, since the key set failed, the network is not encrypted. Dan _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
