More on getting wireless (wlan, wwan) working
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@ -17,7 +17,13 @@
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]
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? <run-service <daemon <udhcpc ?ifname>>> [
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<daemon <udhcpc $ifname> ["udhcpc" "-i" $ifname "-fR"]>
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<daemon <udhcpc $ifname> ["udhcpc" "-i" $ifname "-fR" "-s" "/usr/lib/synit/udhcpc.script"]>
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]
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? <run-service <daemon <wpa_supplicant ?ifname>>> [
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<daemon <wpa_supplicant $ifname> [
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"wpa_supplicant" "-Dnl80211,wext" "-C/run/wpa_supplicant" "-i" $ifname
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]>
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]
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?? <run-oneshot ?argv> ! <run-oneshot $argv on-error>
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@ -59,6 +65,13 @@
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$config <configure-interface $ifname <dhcp>>
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]
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$machine ? <interface ?ifname _ wireless _ _ _ _> [
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$config <run-service <daemon <wpa_supplicant $ifname>>>
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]
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$machine ? <interface ?ifname _ wireless up up carrier _> [
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$config <configure-interface $ifname <dhcp>>
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]
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$machine ? <route ?af default _ _ _ _> [
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$config <default-route $af>
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]
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@ -0,0 +1,188 @@
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#!/bin/sh
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# script for udhcpc
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# Copyright (c) 2008 Natanael Copa <natanael.copa@gmail.com>
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# Modified 2022 Tony Garnock-Jones <tonyg@leastfixedpoint.com> for WWAN support
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UDHCPC="/etc/udhcpc"
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UDHCPC_CONF="$UDHCPC/udhcpc.conf"
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RESOLV_CONF="/etc/resolv.conf"
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[ -f $UDHCPC_CONF ] && . $UDHCPC_CONF
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export broadcast
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export dns
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export domain
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export interface
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export ip
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export mask
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export metric
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export staticroutes
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export router
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export subnet
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export PATH=/usr/bin:/bin:/usr/sbin:/sbin
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run_scripts() {
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local dir=$1
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if [ -d $dir ]; then
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for i in $dir/*; do
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[ -f $i ] && $i
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done
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fi
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}
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deconfig() {
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ip -4 addr flush dev $interface
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}
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is_qmi() {
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test -e /sys/class/net/$interface/qmi
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}
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is_wifi() {
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test -e /sys/class/net/$interface/phy80211
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}
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if_index() {
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if [ -e /sys/class/net/$interface/ifindex ]; then
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cat /sys/class/net/$interface/ifindex
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else
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ip -4 link show dev $interface | head -n1 | cut -d: -f1
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fi
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}
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calc_metric() {
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local base=
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if is_qmi
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then
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base=400
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else
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if is_wifi
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then
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base=300
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else
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base=200
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fi
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fi
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echo $(( $base + $(if_index) ))
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}
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route_add() {
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local to=$1 gw=$2 num=$3
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# special case for /32 subnets:
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# /32 instructs kernel to always use routing for all outgoing packets
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# (they can never be sent to local subnet - there is no local subnet for /32).
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# Used in datacenters, avoids the need for private ip-addresses between two hops.
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if [ "$subnet" = "255.255.255.255" ]; then
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ip -4 route add $gw dev $interface
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fi
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ip -4 route add $to via $gw dev $interface \
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metric $(( $num + ${IF_METRIC:-$(calc_metric)} ))
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}
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routes() {
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[ -z "$router" ] && [ -z "$staticroutes" ] && return
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for i in $NO_GATEWAY; do
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[ "$i" = "$interface" ] && return
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done
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while ip -4 route del default via dev $interface 2>/dev/null; do
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:
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done
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local num=0
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# RFC3442:
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# If the DHCP server returns both a Classless Static Routes option
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# and a Router option, the DHCP client MUST ignore the Router option.
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if [ -n "$staticroutes" ]; then
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# static routes format: dest1/mask gw1 ... destn/mask gwn
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set -- $staticroutes
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while [ -n "$1" ] && [ -n "$2" ]; do
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local dest="$1" gw="$2"
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if [ "$gw" != "0.0.0.0" ]; then
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route_add $dest $gw $num && num=$(( $num + 1))
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fi
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shift 2
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done
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else
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local gw=
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for gw in $router; do
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route_add 0.0.0.0/0 $gw $num && num=$(( $num + 1 ))
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done
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fi
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}
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resolvconf() {
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local i
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[ -n "$IF_PEER_DNS" ] && [ "$IF_PEER_DNS" != "yes" ] && return
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if [ "$RESOLV_CONF" = "no" ] || [ "$RESOLV_CONF" = "NO" ] \
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|| [ -z "$RESOLV_CONF" ] || [ -z "$dns" ]; then
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return
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fi
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for i in $NO_DNS; do
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[ "$i" = "$interface" ] && return
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done
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echo -n > "$RESOLV_CONF.$$"
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if [ -n "$search" ]; then
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echo "search $search" >> "$RESOLV_CONF.$$"
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elif [ -n "$domain" ]; then
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echo "search $domain" >> "$RESOLV_CONF.$$"
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fi
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for i in $dns; do
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echo "nameserver $i" >> "$RESOLV_CONF.$$"
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done
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chmod a+r "$RESOLV_CONF.$$"
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mv "$RESOLV_CONF.$$" "$RESOLV_CONF"
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}
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bound() {
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ip -4 addr add $ip/$mask ${broadcast:+broadcast $broadcast} dev $interface
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ip -4 link set dev $interface up
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routes
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resolvconf
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}
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renew() {
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if ! ip -4 addr show dev $interface | grep $ip/$mask; then
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ip -4 addr flush dev $interface
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ip -4 addr add $ip/$mask ${broadcast:+broadcast $broadcast} dev $interface
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fi
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local i
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for i in $router; do
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if ! ip -4 route show | grep ^default | grep $i; then
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routes
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break
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fi
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done
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if ! grep "^search $domain"; then
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resolvconf
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return
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fi
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for i in $dns; do
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if ! grep "^nameserver $i"; then
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resolvconf
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return
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fi
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done
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}
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case "$1" in
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deconfig|renew|bound)
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run_scripts $UDHCPC/pre-$1
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$1
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run_scripts $UDHCPC/post-$1
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;;
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leasefail)
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echo "udhcpc failed to get a DHCP lease" >&2
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;;
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nak)
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echo "udhcpc received DHCP NAK" >&2
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;;
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*)
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echo "Error: this script should be called from udhcpc" >&2
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exit 1
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;;
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esac
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exit 0
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@ -30,6 +30,7 @@ apk add -X `pwd`/packages \
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synit-config \
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\
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alsa-utils \
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qmi-utils \
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\
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docker
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