bootrc: for wireless netbooting, set the WPA/WPA2 preshard key with wpapsk=password boot parameter

this allows automatic netbooting without password prompt
for the wirelss network.

1 files changed, 16 insertions, 3 deletions

diff --git a/sys/src/9/boot/net.rc b/sys/src/9/boot/net.rc
index 1a194dd84..54d108eed 100755
--- a/sys/src/9/boot/net.rc
+++ b/sys/src/9/boot/net.rc
@@ -9,10 +9,23 @@ fn confignet{
 	}
 
 	# setup wifi encryption if any
-	if(~ $1 ether && ~ $service terminal && test -x /bin/aux/wpa){
-		if(grep -s '^status: need authentication' $2/ifstats >[2]/dev/null){
-			aux/wpa -p $2
+	if(~ $1 ether && test -x /bin/aux/wpa){
+		essid=`{grep '^essid: ' $2/ifstats | sed 's/^essid: //; q'}
+		if(! ~ $#essid 0){
+			if(! ~ $#wpapsk 0 || grep -s '^status: need authentication' $2/ifstats >[2]/dev/null){
+				x=(aux/wpa -s $"essid)
+				if(! ~ $#wpapsk 0){
+					echo 'key proto=wpapsk' `{!password=$"wpapsk whatis essid !password} > /mnt/factotum/ctl
+					wpapsk=()
+				}
+				if not {
+					x=($x -p)		
+				}
+				$x $2
+			}
+			essid=()
 		}
+		rm -f /env/^(essid wpapsk)
 	}
 
 	if(~ $1 ether gbe && ~ $#* 2) @{