[Solved] Netcfg 2.6.1 - suddenly fails to associate with WPA2 network

Question

Everything around here seems to be breaking these days... Anyways.
I upgraded netcfg yesterday. Today I fire up my laptop, but no wireless. I run netcfg again, this is what wpa_supplicant spits out:
# netcfg intel
:: intel up [BUSY]
Failed to connect to wpa_supplicant - wpa_ctrl_open: No such file or directory
Failed to connect to wpa_supplicant - wpa_ctrl_open: No such file or directory
^C
The funny thing is, nothing's changed in the netcfg config file, which looks like this:
CONNECTION="wireless"
INTERFACE="intel"
HOSTNAME="hermes"
# AP authentication
SCAN="yes"
SECURITY="wpa-config"
WPA_CONF="/etc/wpa_supplicant.conf"
WPA_OPTS="-Dwext -B"
ESSID="Zeus 802.11n"
# IP address
IP="dhcp"
DHCP_TIMEOUT=10
I compared my config to the examples that come with netcfg - just to be sure nothing's changed that I wasn't aware of - but it looks pretty identical. Oddly enough, calling wpa_supplicant and then dhcpcd directly just connects me to my WLAN, like netcfg used to be able to do.
For reference, netcfg seems to call wpa_supplicant like this, going by htop's output:
wpa_supplicant -Dwext,nl80211 -c /etc/wpa_supplicant.conf -B -i intel -d
When run separately, however, that works just fine, just like using -Dwext like I used to do before.
Last edited by .:B:. (2011-06-21 22:29:55)

Answer 1

My understanding is that the thing fails in start_wpa(). From /usr/lib/network/8021x:
start_wpa()
local INTERFACE="$1" WPA_CONF="$2" WPA_DRIVER="$3"
shift 3
local WPA_OPTS="$*"
wpa_supplicant -B -P "/run/wpa_supplicant_${INTERFACE}.pid" -i "$INTERFACE"-D "$WPA_DRIVER" -c "$WPA_CONF" $WPA_OPTS
sleep 1
if [[ ! -f "/run/wpa_supplicant_${INTERFACE}.pid" ]]; then
return 1
fi
So, you should have seen "-P' in htop, no? Have you tried w/o WPA_OPTS?
EDIT: OK, I was wrong. The error seems to come from wpa_supplicant/wp_cli calls with the new /run standard:
arch~> grep "/run/wpa_supplicant" ./usr/lib/network/8021x
WPA_CLI="wpa_cli -p /run/wpa_supplicant"
wpa_supplicant -B -P "/run/wpa_supplicant_${INTERFACE}.pid" -i "$INTERFACE" -D "$WPA_DRIVER" -c "$WPA_CONF" $WPA_OPTS
if [[ ! -f "/run/wpa_supplicant_${INTERFACE}.pid" ]]; then
if [[ -f "/run/wpa_supplicant_$1.pid" ]]; then
kill "$(cat "/run/wpa_supplicant_$1.pid")" &>/dev/null &
wpa_supplicant -B -i"$INTERFACE" -Dnl80211,wext -C/run/wpa_supplicant -P/run/wpa_supplicant.pid || return 1
kill "$(cat /run/wpa_supplicant.pid)"
echo "ctrl_interface=/run/wpa_supplicant" >> "$WPA_CONF/wpa.conf" # we know $WPA_CONF now has no spaces, but it may have other nasty chars, so still needs to be quoted
Could you change the ctrl_interface to to /run/wpa_supplicant in /etc/wpa_supplicant.conf?
Last edited by Leonid.I (2011-06-21 21:19:59)