add a simple /sbin/wifi script with support for the new broadcom driver (incomplete, but works)

git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4072 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/broadcom-wl/files/lib/wifi/broadcom.sh

@@ -0,0 +1,161 @@
+scan_broadcom() {
+	local device="$1"
+
+	config_get vifs "$device" vifs
+	for vif in $vifs; do
+		config_get mode "$vif" mode
+		case "$mode" in
+			adhoc)
+				adhoc=1
+				adhoc_if="$vif"
+			;;
+			sta)
+				sta=1
+				sta_if="$vif"
+			;;
+			ap)
+				ap=1
+				ap_if="${ap_if:+$ap_if }$vif"
+			;;
+			*) echo "$device($vif): Invalid mode";;
+		esac
+	done
+
+	local _c=
+	for vif in ${adhoc_if:-$sta_if $ap_if}; do
+		config_set "$vif" ifname "wl0${_c:+.$_c}"
+		_c=$((${_c:-0} + 1))
+	done
+
+	ifdown="down"
+	for vif in 0 1 2 3; do
+		append ifdown "vif $vif" "$N"
+		append ifdown "enabled 0" "$N"
+	done
+
+	ap=1
+	infra=1
+	mssid=1
+	apsta=0
+	radio=1
+	case "$adhoc:$sta:$ap" in
+		1*)
+			ap=0
+			mssid=0
+			infra=0
+		;;
+		:1:1)
+			apsta=1
+			wet=1
+		;;
+		:1:)
+			wet=1
+			ap=0
+			mssid=0
+		;;
+		::)
+			radio=0
+		;;
+	esac
+}
+
+
+setup_broadcom() {
+	local _c
+	config_get channel "$device" channel
+	config_get country "$device" country
+	config_get maxassoc "$device" maxassoc
+
+	_c=0
+	nas="$(which nas)"
+	nas_cmd=
+	for vif in ${adhoc_if:-$sta_if $ap_if}; do
+		append vif_pre_up "vif $_c" "$N"
+		append vif_post_up "vif $_c" "$N"
+		
+		[ "$vif" = "$sta_if" ] || {
+			config_get_bool hidden "$vif" hidden 1
+			append vif_pre_up "closed $hidden" "$N"
+			config_get_bool isolate "$vif" isolate
+			append vif_pre_up "ap_isolate $hidden" "$N"
+		}
+
+		wsec_r=0
+		eap_r=0
+		wsec=0
+		auth=0
+		nasopts=
+		config_get enc "$vif" encryption
+		case "$enc" in
+			WEP|wep)
+				wsec_r=1
+			;;
+			*psk*|*PSK*)
+				wsec_r=1
+				config_get key "$vif" key
+				case "$enc" in
+					wpa2*|WPA2*|PSK2*|psk2*) auth=128; wsec=4;;
+					*) auth=4; crypto=2;;
+				esac
+				eval "${vif}_key=\"\$key\""
+				nasopts="-k \"\$${vif}_key\""
+			;;
+			*wpa*|*WPA*)
+				wsec_r=1
+				eap_r=1
+				config_get key "$vif" key
+				config_get server "$vif" server
+				config_get port "$vif" port
+				case "$enc" in
+					wpa2*|WPA2*) auth=64; wsec=4;;
+					*) auth=2; crypto=2;;
+				esac
+				eval "${vif}_key=\"\$key\""
+				nasopts="-r \"\$${vif}_key\" -h $server -p $port"
+			;;
+		esac
+		append vif_post_up "wsec $wsec" "$N"
+		append vif_post_up "wpa_auth $auth" "$N"
+		append vif_post_up "wsec_restrict $wsec_r" "$N"
+		append vif_post_up "eap_restrict $eap_r" "$N"
+		
+		config_get ssid "$vif" ssid
+		append vif_post_up "ssid $ssid" "$N"
+		append vif_post_up "enabled 1" "$N"
+		
+		[ -z "$nasopts" ] || {
+			config_get ifname "$vif" ifname
+			config_get bridge "$vif" bridge # XXX: integrate with /etc/config/network later
+			eval "${vif}_ssid=\"\$ssid\""
+			mode="-A"
+			[ "$vif" = "$sta_if" ] && mode="-S"
+			[ -z "$nas" ] || nas_cmd="${nas_cmd:+$nas_cmd$N}$nas -P /var/run/nas.$ifname.pid -H 34954 -i $ifname${bridge:+ -l $bridge} $mode -m $auth -w $crypto -s \"\$${vif}_ssid\" -g 3600 $nasopts &"
+		}
+		_c=$(($_c + 1))
+	done
+	killall -KILL nas >&- 2>&-
+	cat <<EOF
+$ifdown
+
+mssid $mssid
+ap $ap
+apsta $apsta
+infra $infra
+${wet:+wet 1}
+
+radio ${radio:-1}
+macfilter 0
+maclist none
+wds none
+channel ${channel:-0}
+country ${country:-IL0}
+maxassoc ${maxassoc:-128}
+
+$vif_pre_up
+up
+$vif_post_up
+EOF
+	eval "$nas_cmd"
+}
+
+