[patch] if_down_up_hack.patch

iwconfig.sh.ifdownup.patch (text/plain), 3.79 KB, created by Ernst Herzberg on 2006-08-13 15:40:19 UTC

--- iwconfig.sh.orig	2006-08-13 23:29:03.000000000 +0200
+++ iwconfig.sh	2006-08-13 23:47:31.000000000 +0200
@@ -347,7 +347,7 @@
 # so we can fail gracefully without even trying to connect
 iwconfig_associate() {
 	local iface="$1" mode="${2:-managed}"
-	local mac="$3" wep_required="$4" freq="$5" w="(WEP Disabled)"
+	local mac="$3" wep_required="$4" freq="$5" chan="$6" w="(WEP Disabled)"
 	local dessid="${ESSID//\\\\/\\\\}" key=
 
 	iwconfig_set_mode "${iface}" "${mode}"
@@ -378,7 +378,12 @@
 		[[ ${key} != "off" ]] && w=$(iwconfig_get_wep_status "${iface}")
 	fi
 
-	[[ -n ${freq} ]] && iwconfig "${iface}" freq "${freq}"
+	# Only use channel or frequency
+	if [[ -n ${chan} ]] ; then
+		iwconfig "${iface}" channel "${chan}"
+	elif [[ -n ${freq} ]] ; then
+		iwconfig "${iface}" freq "${freq}"
+	fi
 	[[ -n ${mac} ]] && iwconfig "${iface}" ap "${mac}"
 
 	if ! iwconfig "${iface}" essid "${ESSID}" ; then
@@ -453,7 +458,7 @@
 	[[ -z ${!x} || ${!x} -gt 0 ]] && sleep "${!x:-1}"
 
 	local error=true i=-1 line=
-	local -a mac=() essid=() enc=() qual=() mode=()
+	local -a mac=() essid=() enc=() qual=() mode=() freq=() chan=()
 
 	while read line; do
 		error=false
@@ -476,6 +481,11 @@
 				;;
 			*Frequency:*)
 				freq[i]="${line#*:}"
+				freq[i]="${freq[i]%% *}"
+				;;
+			*Channel:*)
+				chan[i]="${line#*:}"
+				chan[i]="${chan[i]%% *}"
 				;;
 			*Quality*)
 				qual[i]="${line#*:}"
@@ -486,6 +496,10 @@
 		esac
 	done < <(iwlist "${iface}" scan 2>/dev/null)
 
+	# HUP the interface as some drivers/cards need it
+	interface_down ${iface}
+	interface_up ${iface}
+
 	if ${error}; then
 		ewarn "${iface} does not support scanning"
 		x="adhoc_essid_${ifvar}"
@@ -533,6 +547,7 @@
 				unset mode[y]
 				unset enc[y]
 				unset freq[y]
+				unset chan[y]
 			fi
 		done
 	done
@@ -542,6 +557,7 @@
 	mode=( "${mode[@]}" )
 	enc=( "${enc[@]}" )
 	freq=( "${freq[@]}" )
+	chan=( "${chan[@]}" )
 
 	for (( i=0; i<${#mac[@]}; i++ )); do
 		# Don't like ad-hoc nodes by default
@@ -557,6 +573,7 @@
 		mode_APs[i]="${mode[${sortline[x]}]}"
 		enc_APs[i]="${enc[${sortline[x]}]}"
 		freq_APs[i]="${freq[${sortline[x]}]}"
+		chan_APs[i]="${chan[${sortline[x]}]}"
 	done
 
 	return 0
@@ -629,6 +646,7 @@
 		unset mac_APs[i]
 		unset enc_APs[i]
 		unset freq_APs[i]
+		unset chan_APs[i]
 	done
 
 	# We need to squash our arrays so indexes work again
@@ -637,6 +655,7 @@
 	mac_APs=( "${mac_APs[@]}" )
 	enc_APs=( "${enc_APs[@]}" )
 	freq_APs=( "${freq_APs[@]}" )
+	chan_APs=( "${chan_APs[@]}" )
 }
 
 # bool iwconfig_force_preferred(char *iface)
@@ -679,7 +698,7 @@
 			if [[ ${essid} == "${essid_APs[i]}" ]]; then
 				ESSID="${essid}"
 				iwconfig_associate "${iface}" "${mode_APs[i]}" "${mac_APs[i]}" \
-					"${enc_APs[i]}" "${freq_APs[i]}" && return 0
+					"${enc_APs[i]}" "${freq_APs[i]}" "${chan_APs[i]}" && return 0
 				break
 			fi
 		done
@@ -706,7 +725,7 @@
 		if ! ${has_preferred} ; then
 			ESSID="${essid_APs[i]}"
 			iwconfig_associate "${iface}" "${mode_APs[i]}" "${mac_APs[i]}" \
-				"${enc_APs[i]}" "${freq_APs[i]}" && return 0
+				"${enc_APs[i]}" "${freq_APs[i]}" "${chan_APs[i]}" && return 0
 		fi
 	done
 
@@ -751,12 +770,14 @@
 				unset mac_APs[j]
 				unset enc_APs[j]
 				unset freq_APs[j]
+				unset chan_APs[j]
 				# We need to squash our arrays so that indexes work
 				essid_APs=( "${essid_APs[@]}" )
 				mode_APs=( "${mode_APs[@]}" )
 				mac_APs=( "${mac_APs[@]}" )
 				enc_APs=( "${enc_APs[@]}" )
 				freq_APs=( "${freq_APs[@]}" )
+				chan_APs=( "${chan_APs[@]}" )
 				break
 			fi
 		done
@@ -780,7 +801,8 @@
 # variables for the ESSID
 iwconfig_configure() {
 	local iface="$1" e= x= ifvar=$(bash_variable "$1")
-	local -a essid_APs=() mac_APs=() mode_APs=() enc_APs=() freq_APs=()
+	local -a essid_APs=() mac_APs=() mode_APs=()
+	local -a enc_APs=() freq_APs=() chan_APs=()
 
 	ESSID="essid_${ifvar}"
 	ESSID="${!ESSID}"