lib/ifup-aliases

   1 #!/bin/sh
   2 #
   3 #
   4 # Adds all addresses of device.
   5 # Called from ifup-post.
   6
   7 # Add all addresses
   8 for IP_ADDR in $IPADDR_ALIASES; do
   9         [ -z "$IP_ADDR" ] && continue
  10         # Be sure that primary address is added
  11         if [ "$IP_ADDR" = "$IP4ADDR" -o "$IP_ADDR" = "$IP6ADDR" ]; then
  12                 if (ip addr show dev $DEVICE | grep -qE "[[:space:]]${IP_ADDR}[[:space:]]"); then
  13                         continue
  14                 fi
  15         fi
  16         if is_yes "${IPV4_NETWORKING}"; then
  17                 ip -4 addr add ${IP_ADDR} dev ${DEVICE} brd +
  18         fi
  19 done
  20
  21 for IP_ADDR in $IPV6_ADDR; do
  22         [ -z "$IP_ADDR" ] && continue
  23         # Be sure that primary address is added
  24         if [ "$IP_ADDR" = "$IP4ADDR" -o "$IP_ADDR" = "$IP6ADDR" ]; then
  25                 if (ip addr show dev $DEVICE | grep -qE "[[:space:]]${IP_ADDR}[[:space:]]"); then
  26                         continue
  27                 fi
  28         fi
  29         # Check for IPv6 address
  30         if (echo $IP_ADDR | grep -q ":"); then
  31                 if is_yes "${IPV6_NETWORKING}"; then
  32                         ip -6 addr add ${IP_ADDR} dev ${DEVICE}
  33                 fi
  34         elif is_yes "${IPV4_NETWORKING}"; then
  35                 ip -4 addr add ${IP_ADDR} dev ${DEVICE} brd +
  36         fi
  37 done
  38
  39 for nr in $(awk 'BEGIN { max=0; }; /^IPADDR[0-9]+=/ { s = $0; gsub(/^IPADDR/, "", s); gsub(/=.*/, "", s); if (int(s) > int(max)) { max=s; }; };  END { for(j=1; j<=int(max); j++) print j } ' $CONFIG); do
  40         eval IP_ADDR="\$IPADDR${nr}"
  41         [ -z "$IP_ADDR" ] && continue
  42
  43         eval IP_ADDR_OPT="\$IP_AOPTS${nr}"
  44         eval IP_ROUTE_OPT="\$IP_ROPTS${nr}"
  45         eval IP_ADDR_LABEL="\$IP_LABEL${nr}"
  46
  47         # Be sure that primary address is added
  48         if [ "$IP_ADDR" = "$IP4ADDR" -o "$IP_ADDR" = "$IP6ADDR" ]; then
  49                 if (ip addr show dev $DEVICE | grep -qE "[[:space:]]${IP_ADDR}[[:space:]]"); then
  50                         continue
  51                 fi
  52         fi
  53         # Check for IPv6 address
  54         if echo $IP_ADDR | grep -q ":"; then
  55                 if is_yes "${IPV6_NETWORKING}"; then
  56                         ip -6 addr add ${IP_ADDR} dev ${DEVICE} ${IP_ADDR_OPT}
  57                         if [ -n "${IP_ADDR_LABEL}" ]; then
  58                                 ip -6 addrlabel add prefix ${IP_ADDR} dev ${DEVICE} label ${IP_ADDR_LABEL}
  59                         fi
  60                 fi
  61         elif is_yes "${IPV4_NETWORKING}"; then
  62                 # If broadcast is missing then autocalculate it
  63                 if ! (echo $IP_ADDR_OPT | grep -qE "brd|broadcast"); then
  64                         IP_ADDR_OPT="brd + ${IP_ADDR_OPT}"
  65                 fi
  66                 ip -4 addr add ${IP_ADDR} dev ${DEVICE} ${IP_ADDR_OPT}
  67         fi
  68 done
  69
  70 # Setup IPv4-compatible addresses
  71 if is_yes "$IPV6_NETWORKING" && [ "$BOOTPROTO6" = "v4compat" ]; then
  72         # enable automatic tunnels
  73         ip link set sit0 up
  74
  75         # add v4compat addresses to device
  76         for addr in $(ip -4 addr show scope global dev $DEVICE | \
  77                 awk '/inet/ { print $2 }' | awk -F"/" '{ print $1 }'); do
  78                 ip -6 addr add ::$addr dev $DEVICE
  79         done
  80 fi