applications/luci-splash/root/etc/init.d/luci_splash

   1 #!/bin/sh /etc/rc.common
   2 START=70
   3 EXTRA_COMMANDS=clear_leases
   4 SPLASH_INTERFACES=""
   5 LIMIT_DOWN=0
   6 LIMIT_DOWN_BURST=0
   7 LIMIT_UP=0
   8
   9 silent() {
  10         "$@" 2>/dev/null
  11 }
  12
  13 iface_add() {
  14         local cfg="$1"
  15
  16         config_get zone "$cfg" zone
  17         [ -n "$zone" ] || return 0
  18
  19         config_get net "$cfg" network
  20         [ -n "$net" ] || return 0
  21
  22         config_get ifname "$net" ifname
  23         [ -n "$ifname" ] || return 0
  24
  25         config_get ipaddr "$net" ipaddr
  26         [ -n "$ipaddr" ] || return 0
  27
  28         config_get netmask "$net" netmask
  29         [ -n "$netmask" ] || return 0
  30
  31         eval "$(ipcalc.sh $ipaddr $netmask)"
  32
  33         iptables -t nat -A prerouting_${zone} -j luci_splash_prerouting
  34         iptables -t nat -A luci_splash_prerouting -s "$NETWORK/$PREFIX" -p ! tcp -j luci_splash_portal
  35         iptables -t nat -A luci_splash_prerouting -s "$NETWORK/$PREFIX" -d ! "$ipaddr" -j luci_splash_portal
  36         iptables -t nat -A luci_splash_prerouting -s "$NETWORK/$PREFIX" -d "$ipaddr" -p tcp -m multiport ! --dport 22,80,443 -j luci_splash_portal
  37
  38         qos_iface_add "$ifname"
  39
  40         append SPLASH_INTERFACES "$ifname"
  41 }
  42
  43 iface_del() {
  44         config_get zone "$1" zone
  45         [ -n "$zone" ] || return 0
  46
  47         config_get ifname "$1" ifname
  48         [ -n "$ifname" ] || return 0
  49
  50         while iptables -t nat -D prerouting_${zone} -j luci_splash_prerouting 2>&-; do :; done
  51
  52         qos_iface_del "$ifname"
  53 }
  54
  55 blacklist_add() {
  56         local cfg="$1"
  57
  58         config_get mac "$cfg" mac
  59         [ -n "$mac" ] && {
  60                 iptables -t filter -I luci_splash_counter -m mac --mac-source "$mac" -j RETURN
  61                 iptables -t nat    -I luci_splash_leases  -m mac --mac-source "$mac" -j DROP
  62         }
  63 }
  64
  65 whitelist_add() {
  66         local cfg="$1"
  67
  68         config_get mac "$cfg" mac
  69         [ -n "$mac" ] && {
  70                 iptables -t filter -I luci_splash_counter -m mac --mac-source "$mac" -j RETURN
  71                 iptables -t nat    -I luci_splash_leases  -m mac --mac-source "$mac" -j RETURN
  72         }
  73 }
  74
  75 lease_add() {
  76         local cfg="$1"
  77
  78         config_get mac "$cfg" mac
  79         config_get ban "$cfg" kicked
  80
  81         ban=${ban:+DROP}
  82
  83         [ -n "$mac" ] && {
  84                 local oIFS="$IFS"; IFS=":"
  85                 set -- $mac
  86                 IFS="$oIFS"; unset oIFS
  87
  88                 local mac_pre="$1$2"
  89                 local mac_post="$3$4$5$6"
  90                 local handle="$6"
  91
  92                 iptables -t filter -I luci_splash_counter -m mac --mac-source "$mac" -j RETURN
  93                 iptables -t mangle -I luci_splash_mark    -m mac --mac-source "$mac" -j MARK --set-mark 79
  94                 iptables -t nat    -I luci_splash_leases  -m mac --mac-source "$mac" -j "${ban:-RETURN}"
  95
  96                 for i in $SPLASH_INTERFACES; do
  97                         tc filter add dev $i parent 77:0 protocol ip prio 2 handle ::$handle u32 \
  98                                 match u16 0x0800 0xFFFF at -2 match u32 0x$mac_post 0xFFFFFFFF at -12 \
  99                                 match u16 0x$mac_pre 0xFFFF at -14 flowid 77:10
 100                 done
 101         }
 102 }
 103
 104 qos_iface_add() {
 105         local iface="$1"
 106
 107         # 77 -> download root qdisc
 108         # 78 -> upload root qdisc
 109         # 79 -> fwmark
 110
 111         tc qdisc del dev "$iface" root handle 77:
 112
 113         if [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ]; then
 114                 tc qdisc add dev "$iface" root handle 77: htb
 115
 116                 # assume maximum rate of 20.000 kilobit for wlan
 117                 tc class add dev "$iface" parent 77: classid 77:1 htb rate 20000kbit
 118
 119                 # set download limit and burst
 120                 tc class add dev "$iface" parent 77:1 classid 77:10 htb \
 121                         rate ${LIMIT_DOWN}kbit ceil ${LIMIT_DOWN_BURST}kbit prio 2
 122
 123                 tc qdisc add dev "$iface" parent 77:10 handle 78: sfq perturb 10
 124
 125                 # adding ingress can result in "File exists" if qos-scripts are active
 126                 silent tc qdisc add dev "$iface" ingress
 127
 128                 # set client upload speed
 129                 tc filter add dev "$iface" parent ffff: protocol ip prio 1 \
 130                         handle 79 fw police rate ${LIMIT_UP}kbit mtu 6k burst 6k drop
 131         fi
 132 }
 133
 134 qos_iface_del() {
 135         local iface="$1"
 136
 137         tc qdisc del dev "$iface" root handle 77:
 138         tc qdisc del dev "$iface" root handle 78:
 139         tc filter del dev "$iface" parent ffff: protocol ip prio 1 handle 79 fw
 140 }
 141
 142 boot() {
 143         ### Setup splash-relay
 144         uci get lucid.splashr || {
 145 uci batch <<EOF
 146         set lucid.splashr=daemon
 147         set lucid.splashr.slave=httpd
 148         add_list lucid.splashr.address=8082
 149         add_list lucid.splashr.publisher=splashredir
 150         set lucid.splashr.enabled=1
 151
 152         set lucid.splashredir=Redirector
 153         set lucid.splashredir.name=Splashd
 154         set lucid.splashredir.virtual='/'
 155         set lucid.splashredir.physical=':80/luci/splash'
 156
 157         commit lucid
 158 EOF
 159         }
 160
 161         ### We are started by the firewall include
 162         exit 0
 163 }
 164
 165 start() {
 166         ### Read chains from config
 167         include /lib/network
 168         scan_interfaces
 169         config_load luci_splash
 170
 171         ### Find QoS limits
 172         config_get LIMIT_UP general limit_up
 173         config_get LIMIT_DOWN general limit_down
 174         config_get LIMIT_DOWN_BURST general limit_down_burst
 175
 176         LIMIT_UP="${LIMIT_UP:-0}"
 177         LIMIT_DOWN="${LIMIT_DOWN:-0}"
 178         LIMIT_DOWN_BURST="${LIMIT_DOWN_BURST:-$(($LIMIT_DOWN * 2))}"
 179
 180         ### Load required modules
 181         [ "$LIMIT_IP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && {
 182                 silent insmod cls_fw
 183                 silent insmod cls_route
 184                 silent insmod cls_rsvp
 185                 silent insmod cls_rsvp6
 186                 silent insmod cls_tcindex
 187                 silent insmod cls_u32
 188                 silent insmod sch_cbq
 189                 silent insmod sch_csz
 190                 silent insmod sch_dsmark
 191                 silent insmod sch_gred
 192                 silent insmod sch_hfsc
 193                 silent insmod sch_htb
 194                 silent insmod sch_ingress
 195                 silent insmod sch_red
 196                 silent insmod sch_tbf
 197                 silent insmod sch_teql
 198         }
 199
 200         ### Create subchains
 201         iptables -t filter -N luci_splash_counter
 202         iptables -t nat    -N luci_splash_portal
 203         iptables -t nat    -N luci_splash_leases
 204         iptables -t nat    -N luci_splash_prerouting
 205
 206         [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && \
 207                 iptables -t mangle -N luci_splash_mark
 208
 209         ### Build the main and portal rule
 210         config_foreach iface_add iface
 211         config_foreach blacklist_add blacklist
 212         config_foreach whitelist_add whitelist
 213         config_foreach lease_add lease
 214
 215         ### Build the portal rule
 216         iptables -t filter -I INPUT      -j luci_splash_counter
 217         iptables -t filter -I FORWARD    -j luci_splash_counter
 218
 219         [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && \
 220                 iptables -t mangle -I PREROUTING -j luci_splash_mark
 221
 222         iptables -t nat -A luci_splash_portal -p udp --dport 33434:33523 -j RETURN
 223         iptables -t nat -A luci_splash_portal -p icmp -j RETURN
 224         iptables -t nat -A luci_splash_portal -p udp --dport 53 -j RETURN
 225         iptables -t nat -A luci_splash_portal -j luci_splash_leases
 226
 227         ### Build the leases rule
 228         iptables -t nat -A luci_splash_leases -p tcp --dport 80 -j REDIRECT --to-ports 8082
 229         iptables -t nat -A luci_splash_leases -j DROP
 230
 231         ### Add crontab entry
 232         test -f /etc/crontabs/root || touch /etc/crontabs/root
 233         grep -q luci-splash /etc/crontabs/root || {
 234                 echo '*/5 * * * *       /usr/sbin/luci-splash sync' >> /etc/crontabs/root
 235         }
 236
 237         ### Start the splash httpd
 238         start-stop-daemon -S -m -p /var/run/luci-splashd.pid -b -q -x /usr/bin/luci-splashd
 239 }
 240
 241 stop() {
 242         ### Clear interface rules
 243         config_load luci_splash
 244         config_foreach iface_del iface
 245
 246         silent iptables -t filter -D INPUT      -j luci_splash_counter
 247         silent iptables -t filter -D FORWARD    -j luci_splash_counter
 248         silent iptables -t mangle -D PREROUTING -j luci_splash_mark
 249
 250         ### Clear subchains
 251         silent iptables -t nat    -F luci_splash_leases
 252         silent iptables -t nat    -F luci_splash_portal
 253         silent iptables -t nat    -F luci_splash_prerouting
 254         silent iptables -t filter -F luci_splash_counter
 255         silent iptables -t mangle -F luci_splash_mark
 256
 257         ### Delete subchains
 258         silent iptables -t nat    -X luci_splash_leases
 259         silent iptables -t nat    -X luci_splash_portal
 260         silent iptables -t nat    -X luci_splash_prerouting
 261         silent iptables -t filter -X luci_splash_counter
 262         silent iptables -t mangle -X luci_splash_mark
 263
 264         ### Stop the splash httpd
 265         start-stop-daemon -K -p /var/run/luci-splashd.pid -s KILL -q
 266
 267         sed -ie '/\/usr\/sbin\/luci-splash sync/d' /var/spool/cron/crontabs/root
 268 }
 269
 270
 271 clear_leases() {
 272         stop
 273         while uci -P /var/state del luci_splash.@lease[0] 2>&-;do :; done
 274         start
 275 }
 276