Hi Folks In my work to create an all wireless router I have found a few problems with the way wpasupplicant is implemented.
1) the init sequence appears to be broken, as wpasupplicant must be
started before an attempt to set the interface up
2) the wpasupplicant start script has an option bug
I created two invocation scripts in /etc/network/if-pre-up.d and
if-post-down.d which take care of the wpasupplicant start and stop
sequence. The invocation can be controlled from /etc/network/interfaces like
# uplink WiFi connection
auto wlan0
iface wlan0 inet dhcp
wpa_supplicant_control 1
There is a new parameter in /etc/default/wpasupplicant which controls
the wait parameter for /etc/init.d/wpasupplicant instead of a fixed
parameter in the startup file. This way we can fix the bug and make it
even more flexible.
# uncomment to make wpasupplicant wait for the control client
#WPA_CLIENT_WAIT=-W
So far it works for me.
SALT# ifup wlan0
Starting wpa_supplicant.
Successfully initialized wpa_supplicant
Selected interface 'wlan0'
wpa_state=SCANNING
address=00:0b:6b:36:bb:b6
dhcpcd[11765]: version 5.2.11 starting
dhcpcd[11765]: wlan0: waiting for carrier
dhcpcd[11765]: wlan0: carrier acquired
dhcpcd[11765]: wlan0: broadcasting for a lease
dhcpcd[11765]: wlan0: offered 194.124.158.67 from 194.124.158.51
dhcpcd[11765]: wlan0: acknowledged 194.124.158.67 from 194.124.158.51
dhcpcd[11765]: wlan0: checking for 194.124.158.67
dhcpcd[11765]: wlan0: leased 194.124.158.67 for 1800 seconds
dhcpcd[11765]: forked to background, child pid 11795
SALT# ifdown wlan0
dhcpcd[11807]: sending signal 1 to pid 11795
dhcpcd[11807]: waiting for pid 11795 to exit
Stopping wpa_supplicant.
stopped wpa_supplicant (pid 11760)
I can commit these changes to maint if there is no objection.
cheers
Erich
smime.p7s
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