contrib/package/meshwizard/files/usr/bin/meshwizard/helpers/setup_network.sh

   1 # setup entry in /etc/config/network for a interface
   2 # Argument $1: network interface
   3
   4 net="$1"
   5 . /lib/functions.sh
   6 . $dir/functions.sh
   7
   8 # Setup a (new) interface section for $net
   9
  10 ipaddr=$(uci -q get meshwizard.netconfig.$net\_ip4addr)
  11 ip6addr=$(uci -q get meshwizard.netconfig.$net\_ip6addr)
  12 [ -z "$ipaddr" ] && msg_missing_value meshwizard $net\_ip4addr
  13
  14 netmask=$(uci -q get meshwizard.netconfig.$net\_netmask)
  15 [ -z "$netmask" ] && netmask="$interface_netmask"
  16 [ -z "$netmask" ] && netmask="255.255.0.0"
  17
  18 uci set network.$netrenamed="interface"
  19 set_defaults "interface_" network.$netrenamed
  20
  21 uci batch << EOF
  22         set network.$netrenamed.proto="static"
  23         set network.$netrenamed.ipaddr="$ipaddr"
  24         set network.$netrenamed.netmask="$netmask"
  25 EOF
  26
  27 if [ "$netrenamed" = "lan" ]; then
  28         # remove the bridge if the interface is used for olsr
  29         # since this script is only run in this case, no need
  30         # to check for lan_proto = "olsr" currently.
  31         uci -q delete network.lan.type
  32 fi
  33
  34 # Setup IPv6 for the interface
  35 local ip6addr
  36 if [ "$ipv6_enabled" = 1 ]; then
  37         if [ "$ipv6_config" = "auto-ipv6-dhcpv6" ]; then
  38                 ip6addr="$($dir/helpers/gen_auto-ipv6-dhcpv6-ip.sh $netrenamed)"
  39                 uci set network.$netrenamed.ip6addr="${ip6addr}/112"
  40         fi
  41         if [ "$ipv6_config" = "static" ] && [ -n "$ip6addr" ]; then
  42                 uci set network.$netrenamed.ip6addr="$ip6addr"
  43         fi
  44 fi
  45
  46 uci_commitverbose "Setup interface $netrenamed" network
  47
  48 # setup dhcp alias/interface
  49
  50 net_dhcp=$(uci -q get meshwizard.netconfig.${net}_dhcp)
  51 if [ "$net_dhcp" == 1 ]; then
  52
  53         # Load meshwizard_settings
  54         dhcprange="$(uci -q get meshwizard.netconfig.${net}_dhcprange)"
  55         interface_ip="$(uci -q get meshwizard.netconfig.${net}_ip4addr)"
  56         vap=$(uci -q get meshwizard.netconfig.${net}_vap)
  57
  58         # Rename config
  59         handle_dhcpalias() {
  60                         config_get interface "$1" interface
  61                         if [ "$interface" == "$netrenamed" ]; then
  62                                 if [ -z "${1/cfg[0-9a-fA-F]*/}" ]; then
  63                                         section_rename network $1 ${netrenamed}dhcp
  64                                 fi
  65                         fi
  66         }
  67         config_load network
  68         config_foreach handle_dhcpalias interface
  69
  70         # Get IP/netmask and start-ip for $net dhcp
  71         # If no dhcprange is given in /etc/config/meshwizard we autogenerate one
  72
  73         if [ -z "$dhcprange" ]; then
  74                 dhcprange="$($dir/helpers/gen_dhcp_ip.sh $interface_ip)/24"
  75                 uci set meshwizard.netconfig.${net}_dhcprange="$dhcprange"
  76         fi
  77
  78         # If we use VAP and also offer dhcp on the adhoc interface then cut the dhcp
  79         # range in two halves. one for the adhoc, one for the managed VAP interface
  80         ahdhcp_when_vap="$(uci get profile_$community.profile.adhoc_dhcp_when_vap)"
  81
  82         if [ "$supports_vap" = 1 -a "$vap" = 1 -a "$ahdhcp_when_vap" = 1 ]; then
  83                 # VAPs are enabled for this interface, supported and we want to
  84                 # also use DHCP on the adhoc interface
  85                 local network
  86                 local mask
  87                 network=${dhcprange%%/*}
  88                 mask=${dhcprange##*/}
  89                 # Divide network size by adding 1 to the netmask
  90                 mask=$(($mask + 1))
  91                 # Get first ip and netmask for the adhoc dhcp network
  92                 eval $(sh $dir/helpers/ipcalc-cidr.sh ${network}/${mask} 1 0)
  93                 STARTADHOC=$START
  94                 NETMASKADHOC=$NETMASK
  95                 # Get first ip and netmask for the managed dhcp network
  96                 eval $(sh $dir/helpers/ipcalc-cidr.sh ${NEXTNET}/${mask} 1 0)
  97                 STARTVAP=$START
  98                 NETMASKVAP=$NETMASK
  99                 # Add dhcp interface
 100                 uci batch <<- EOF
 101                         set network.${netrenamed}dhcp=interface
 102                         set network.${netrenamed}dhcp.proto=static
 103                         set network.${netrenamed}dhcp.ipaddr="$STARTVAP"
 104                         set network.${netrenamed}dhcp.netmask="$NETMASKVAP"
 105                 EOF
 106                 uci_commitverbose  "Setup interface for ${netrenamed}dhcp" network
 107         else
 108                 eval $(sh $dir/helpers/ipcalc-cidr.sh $dhcprange 1 0)
 109                 STARTADHOC=$START
 110                 NETMASKADHOC=$NETMASK
 111         fi
 112         if [ "$supports_vap" = 1 -a "$vap" = 1 -a "$ahdhcp_when_vap" != 1 ]; then
 113                 # vaps are enabled and supported and we do not use DHCP on adhoc
 114                 # Add dhcp interface
 115                 uci batch <<- EOF
 116                         set network.${netrenamed}dhcp=interface
 117                         set network.${netrenamed}dhcp.proto=static
 118                         set network.${netrenamed}dhcp.ipaddr="$STARTADHOC"
 119                         set network.${netrenamed}dhcp.netmask="$NETMASKADHOC"
 120                 EOF
 121                 uci_commitverbose  "Setup interface for ${netrenamed}dhcp" network
 122         fi
 123
 124
 125         # Setup alias for $net adhoc interface
 126         if  [ "$supports_vap" = 0 ] || \
 127                 [ "$vap" = 0 ] || \
 128                 [ "$supports_vap" = 1 -a "$vap" = 1 -a "$ahdhcp_when_vap" = 1 ] || \
 129                 [ "$lan_is_olsr" = "1" ]; then
 130                 # setup an alias interface for the main interface to use as a network for clients
 131                 # when one of the following conditions is met
 132                 # * vaps are not supported
 133                 # * or not enabled
 134                 # * or they are supported and enabled but we also want to use DHCP on the adhoc interface
 135                 # * or this is the lan interface and it is used for olsrd (and dhcp is enabled)
 136                 uci batch <<- EOF
 137                         set network.${netrenamed}ahdhcp=interface
 138                         set network.${netrenamed}ahdhcp.ifname="@${netrenamed}"
 139                         set network.${netrenamed}ahdhcp.proto=static
 140                         set network.${netrenamed}ahdhcp.ipaddr="$STARTADHOC"
 141                         set network.${netrenamed}ahdhcp.netmask="$NETMASKADHOC"
 142                 EOF
 143                 uci_commitverbose  "Setup interface for ${netrenamed}ahdhcp" network
 144         fi
 145 fi