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simwifi: host wlan0 obtains ip and set dns for wlan0 in the defwan wlan0

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Signed-off-by: liqinhui <liqinhui@xiaomi.com>
This commit is contained in:
liqinhui 2023-10-19 15:53:14 +08:00 committed by Xiang Xiao
parent fe03ce5fbe
commit 41762eb187
2 changed files with 36 additions and 2 deletions
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8
tools/simwifi/sim_wifi.sh
View File

@ -33,7 +33,7 @@ HOSTAPD_CONF_FILE="$RUN_DIR/hostapd.conf"
DNSMASQ_PID="$RUN_DIR/dnsmasq.pid" DNSMASQ_PID="$RUN_DIR/dnsmasq.pid"
DNSMASQ_CONF="$RUN_DIR/dnsmasq.conf" DNSMASQ_CONF="$RUN_DIR/dnsmasq.conf"
UDHCPC_PID="$RUN_DIR/udhcpc.pid" UDHCPC_PID="$RUN_DIR/udhcpc.pid"
UDHCPC_SCRIPT="$RUN_DIR/udhcpc.script" UDHCPC_SCRIPT="/var/udhcpc.script"
LOG_FILE="$RUN_DIR/simwifi.log" LOG_FILE="$RUN_DIR/simwifi.log"
STATE_FILE="$RUN_DIR/simwifi.state" STATE_FILE="$RUN_DIR/simwifi.state"
@ -151,6 +151,7 @@ init_env()
cp -fr $CUR_DIR/dnsmasq.conf $DNSMASQ_CONF cp -fr $CUR_DIR/dnsmasq.conf $DNSMASQ_CONF
cp -fr $CUR_DIR/udhcpc.script $UDHCPC_SCRIPT cp -fr $CUR_DIR/udhcpc.script $UDHCPC_SCRIPT
chmod +x $UDHCPC_SCRIPT
} }
# Rename the interface name # Rename the interface name
@ -337,6 +338,8 @@ del_gw_wlan()
ip route del $router ip route del $router
sw_dbg 1 "del the default router on $wlan_if" sw_dbg 1 "del the default router on $wlan_if"
} }
ifconfig $wlan_if 0.0.0.0
} }
stop_sta() stop_sta()
@ -512,7 +515,7 @@ init()
echo "mode:$2" >> $DEFCONF_FILE echo "mode:$2" >> $DEFCONF_FILE
[ "$2" = "hwsim" ] && modprobe mac80211_hwsim [ "$2" = "hwsim" ] && modprobe mac80211_hwsim
set_state SW_INIT set_state SW_INIT "" $NUTTX_BR_IF $1
} }
clean() clean()
@ -523,6 +526,7 @@ clean()
[ "$cur_mode" = "hwsim" ] && modprobe -r mac80211_hwsim [ "$cur_mode" = "hwsim" ] && modprobe -r mac80211_hwsim
rm -fr $RUN_DIR rm -fr $RUN_DIR
rm -f $UDHCPC_SCRIPT
} }
usage() usage()

30
tools/simwifi/udhcpc.script
View File

@ -10,6 +10,8 @@ log() {
logger -t "udhcpc[$PPID]" -p daemon.$1 "$interface: $2" logger -t "udhcpc[$PPID]" -p daemon.$1 "$interface: $2"
} }
SIMWIFILOG_FILE=/var/run/simwifi/simwifi.log
DEFCONF_FILE=/var/run/simwifi/simwifi.conf
case $1 in case $1 in
bound|renew) bound|renew)
@ -19,6 +21,34 @@ case $1 in
busybox ifconfig $interface ${mtu:+mtu $mtu} \ busybox ifconfig $interface ${mtu:+mtu $mtu} \
$ip netmask $subnet ${broadcast:+broadcast $broadcast} $ip netmask $subnet ${broadcast:+broadcast $broadcast}
# defwan equals to wlanx, should add router and DEF_NS
defwan=$(cat $DEFCONF_FILE | grep defwan | awk -F':' '{print $2}')
[ ".$defwan" = ".wlan0" ] && {
# get current ("old") routes (after setting new IP)
crouter=$(busybox ip -4 route show dev $interface |
busybox awk '$1 == "default" { print $3; }')
router="${router%% *}" # linux kernel supports only one (default) route
if [ ".$router" != ".$crouter" ]; then
# reset just default routes
busybox ip -4 route flush exact 0.0.0.0/0 dev $interface
fi
if [ -n "$router" ]; then
# special case for /32 subnets: use onlink keyword
[ ".$subnet" = .255.255.255.255 ] \
&& onlink=onlink || onlink=
busybox ip -4 route add default via $router dev $interface $onlink
log info "udhcpc add router $router on $interfac"
fi
DEF_NS="nameserver 8.8.8.8"
RESOLV_CONF_FILE=${RESOLV_CONF:-/etc/resolv.conf}
[ -f $RESOLV_CONF_FILE -a -z "$(cat $RESOLV_CONF_FILE | grep 8.8.8.8)" ] && {
echo "$DEF_NS" >> "$RESOLV_CONF_FILE"
}
}
log info "$1: IP=$ip/$subnet router=$router domain=\"$domain\" dns=\"$dns\" lease=$lease" log info "$1: IP=$ip/$subnet router=$router domain=\"$domain\" dns=\"$dns\" lease=$lease"
;; ;;