sbin/init/rc.d/ip6addrctl

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4 #
   5
   6 # PROVIDE: ip6addrctl
   7 # REQUIRE: FILESYSTEMS
   8 # BEFORE: netif
   9 # KEYWORD: nojailvnet
  10
  11 . /etc/rc.subr
  12 . /etc/network.subr
  13
  14 name="ip6addrctl"
  15 desc="configure address selection policy for IPv6 and IPv4"
  16 rcvar="ip6addrctl_enable"
  17 start_cmd="ip6addrctl_start"
  18 stop_cmd="ip6addrctl_stop"
  19 extra_commands="status prefer_ipv6 prefer_ipv4"
  20 status_cmd="ip6addrctl"
  21 prefer_ipv6_cmd="ip6addrctl_prefer_ipv6"
  22 prefer_ipv4_cmd="ip6addrctl_prefer_ipv4"
  23 config_file="/etc/ip6addrctl.conf"
  24
  25 set_rcvar_obsolete ipv6_enable ipv6_activate_all_interfaces
  26 set_rcvar_obsolete ipv6_prefer ip6addrctl_policy
  27
  28 IP6ADDRCTL_CMD="/usr/sbin/ip6addrctl"
  29
  30 ip6addrctl_prefer_ipv6()
  31 {
  32         afexists inet6 || return 0
  33
  34         ${IP6ADDRCTL_CMD} flush >/dev/null 2>&1
  35         cat <<EOT | ${IP6ADDRCTL_CMD} install /dev/stdin
  36         ::1/128          50      0
  37         ::/0             40      1
  38         ::ffff:0:0/96    35      4
  39         2002::/16        30      2
  40         2001::/32         5      5
  41         fc00::/7          3     13
  42         ::/96             1      3
  43         fec0::/10         1     11
  44         3ffe::/16         1     12
  45 EOT
  46 }
  47
  48 ip6addrctl_prefer_ipv4()
  49 {
  50         afexists inet6 || return 0
  51
  52         ${IP6ADDRCTL_CMD} flush >/dev/null 2>&1
  53         cat <<EOT | ${IP6ADDRCTL_CMD} install /dev/stdin
  54         ::1/128          50      0
  55         ::/0             40      1
  56         ::ffff:0:0/96   100      4
  57         2002::/16        30      2
  58         2001::/32         5      5
  59         fc00::/7          3     13
  60         ::/96             1      3
  61         fec0::/10         1     11
  62         3ffe::/16         1     12
  63 EOT
  64 }
  65
  66 ip6addrctl_start()
  67 {
  68         afexists inet6 || return 0
  69
  70         # install the policy of the address selection algorithm.
  71         case "${ip6addrctl_policy}" in
  72         [Aa][Uu][Tt][Oo])
  73                 if [ -r "${config_file}" -a -s "${config_file}" ]; then
  74                         ${IP6ADDRCTL_CMD} flush >/dev/null 2>&1
  75                         ${IP6ADDRCTL_CMD} install "${config_file}"
  76                 else
  77                         if checkyesno ipv6_activate_all_interfaces; then
  78                                 ip6addrctl_prefer_ipv6
  79                         elif [ -n "$(list_vars ifconfig_\*_ipv6)" ]; then
  80                                 ip6addrctl_prefer_ipv6
  81                         else
  82                                 ip6addrctl_prefer_ipv4
  83                         fi
  84                 fi
  85         ;;
  86         ipv4_prefer)
  87                 ip6addrctl_prefer_ipv4
  88         ;;
  89         ipv6_prefer)
  90                 ip6addrctl_prefer_ipv6
  91         ;;
  92         [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1)
  93                 # Backward compatibility when ipv6_prefer=YES
  94                 ip6addrctl_prefer_ipv6
  95         ;;
  96         [Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|[Oo][Ff][Ff]|0)
  97                 # Backward compatibility when ipv6_prefer=NO
  98                 ip6addrctl_prefer_ipv4
  99         ;;
 100         [Nn][Oo][Nn][Ee])
 101                 ${IP6ADDRCTL_CMD} flush >/dev/null 2>&1
 102         ;;
 103         *)
 104                 warn "\$ip6addrctl_policy is invalid: ${ip6addrctl_policy}. " \
 105                     " \"ipv4_prefer\" is used instead."
 106                 ip6addrctl_prefer_ipv4
 107         ;;
 108         esac
 109
 110         if checkyesno ip6addrctl_verbose; then
 111                 echo 'Address selection policy table for IPv4 and IPv6:'
 112                 ${IP6ADDRCTL_CMD}
 113         fi
 114 }
 115
 116 ip6addrctl_stop()
 117 {
 118         afexists inet6 || return 0
 119
 120         ip6addrctl flush >/dev/null 2>&1
 121 }
 122
 123 load_rc_config $name
 124 run_rc_command "$1"