Version légèrement modifiée du Startup script créé par bob62 sur https://lafibre.info/remplacer-livebox/tuto-remplacer-la-livebox-par-un-routeur-dd-wrt-internet-tv

dd_wrt_startup_script_orange_livebox.sh

### Version 16 20181010
### https://lafibre.info/remplacer-livebox/tuto-remplacer-la-livebox-par-un-routeur-dd-wrt-internet-tv/

### Informations utilisateur

user=fti/abcdefg
pass=hijklmn
maclivebox=01:23:45:67:89:AB
verlivebox=3
serlivebox=ABCDE0123456789
# macdecodeur inutile si aucun décodeur n'est utilisé donc commenté
# macdecodeur=01:23:45:67:89:CD,01:23:45:67:89:EF
dnsorange=80.10.246.3,81.253.149.10

### Detection switch Atheros / Broadcom et port WAN

wanif=eth0
swconfswitch=$(swconfig list | awk '/^Found:/ {print $2}')
if [[ "$swconfswitch" ]]
then
  wanport=$(swconfig dev $swconfswitch show |
    awk '/^\s*ports:/ {p=substr($2,1,1)"t "substr($3,1,1)"t"} END {print p}')
else
  wanport=/proc/switch/$wanif/vlan/2/ports
  wanport=$(awk '/\d/ {p=substr($1,1,1)"t "substr($2,1,1)"t"} END {print p}' $wanport)
fi

### VLAN Internet

# VLAN 832 (Internet) sur le port WAN
if [[ "$swconfswitch" ]]
then
  swconfig dev $swconfswitch vlan 2 set vid 832
  swconfig dev $swconfswitch vlan 2 set ports "$wanport"
  swconfig dev $swconfswitch set apply
else
  echo "$wanport" > /proc/switch/$wanif/vlan/832/ports
  echo "" > /proc/switch/$wanif/vlan/2/ports
fi
# VLAN sur le systeme
vconfig set_name_type VLAN_PLUS_VID_NO_PAD
vconfig add $wanif 832
vconfig rem vlan2

### Support TV, VLAN flux

# VLAN 840 (flux) sur le port WAN
if [[ "$swconfswitch" ]]
then
  swconfig dev $swconfswitch vlan 4 set vid 840
  swconfig dev $swconfswitch vlan 4 set ports "$wanport"
  swconfig dev $swconfswitch set apply
else
  echo "$wanport" > /proc/switch/$wanif/vlan/840/ports
fi
# VLAN sur le systeme
vconfig add $wanif 840
# Ajout du VLAN 840 au bridge LAN deja up
brctl addif $(nvram get lan_ifname) vlan840

### Modification du client DHCP pour prise en compte des options Orange

cp -a /sbin /tmp/sbin_rw
mkdir /tmp/sbin
ln -s /bin/busybox /tmp/sbin/udhcpc
rm /tmp/sbin_rw/udhcpc

cat << \EOF > /tmp/sbin_rw/tohex
#!/bin/sh
for h in $(echo $1 | sed "s/\(.\)/\1 /g")
do
  printf "%02x$2" \'$h
done | sed "s/$2$//"
EOF

maclivebox=$(echo $maclivebox |  tr '[a-z]' '[A-Z]')
cat << EOF > /tmp/sbin_rw/udhcpc
#!/bin/sh
if echo \$* | grep -q vlan832
then
  r=\$(openssl rand -base64 12)
  s=3c12\$(tohex \$r)0313\$(tohex \${r:15})
  h=\$(echo -n \${r:15}$pass\$r | md5sum | cut -c1-32)
  exec /tmp/sbin/udhcpc \$* \\
  -x 0x3c:\$(tohex sagem) \\
  -x 0x3d:01${maclivebox//:/} \\
  -x 0x4d:\$(tohex +FSVDSL_livebox.Internet.softathome.Livebox$verlivebox) \\
  -x 0x5a:00000000000000000000001a0900000558010341010d\$(tohex $user)\$s\$h
fi
exec /tmp/sbin/udhcpc \$*
EOF

chmod +x /tmp/sbin_rw/tohex
chmod +x /tmp/sbin_rw/udhcpc
mount -o bind /tmp/sbin_rw /sbin

### Support TV, options DHCP

f=/tmp/dnsmasq.livebox.conf
echo dhcp-option=tag:decodeur,option:dns-server,$dnsorange > $f
if [[ "$serlivebox" ]]
then
  echo -n dhcp-option=tag:decodeur,125,00:00:0d:e9:24:       >> $f
  echo -n 04:06:$(tohex ${maclivebox//:/} : | cut -c 1-17):  >> $f
  echo -n 05:0f:$(tohex ${serlivebox} :):                    >> $f
  echo    06:09:$(tohex Livebox :):20:$(tohex $verlivebox)   >> $f
fi

# macdecodeur inutile si aucun décodeur n'est utilisé donc commenté
# for mac in ${macdecodeur//,/ }
# do
#   echo dhcp-host=$mac,set:decodeur >> $f
# done

### Restart du client DHCP sur le VLAN 832 (et de dnsmasq)

stopservice wan
sleep 5
startservice wan

### Support TV, start du VLAN 840

ifconfig vlan840 up