freebsd-skq/etc/rc.d/ip6addrctl

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#!/bin/sh
#
# $FreeBSD$
#
# PROVIDE: ip6addrctl
# REQUIRE: FILESYSTEMS
# BEFORE: netif
# KEYWORD: nojail
. /etc/rc.subr
name="ip6addrctl"
rcvar=`set_rcvar`
start_cmd="ip6addrctl_start"
stop_cmd="ip6addrctl_stop"
extra_commands="status prefer_ipv6 prefer_ipv4"
status_cmd="ip6addrctl"
prefer_ipv6_cmd="ip6addrctl_prefer_ipv6"
prefer_ipv4_cmd="ip6addrctl_prefer_ipv4"
Fix several logic bugs in the previous IPv6 variable change and re-add $ipv6_enable support for backward compatibility. From UPDATING: 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF for IPv4. For aliases, $ifconfig_IF_aliasN should be used. Note that both variables need the "inet6" keyword at the head. Do not set $ipv6_network_interfaces manually if you do not understand what you are doing. It is not needed in most cases. $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but they are obsolete. 2. $ipv6_enable is obsolete. Use $ipv6_prefer and/or "inet6 accept_rtadv" keyword in ifconfig(8) instead. If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and all configured interfaces have "inet6 accept_rtadv" in the $ifconfig_IF_ipv6. These are for backward compatibility. 3. A new variable $ipv6_prefer has been added. If NO, IPv6 functionality of interfaces with no corresponding $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, and the default address selection policy of ip6addrctl(8) is the IPv4-preferred one (see rc.d/ip6addrctl for more details). Note that if you want to configure IPv6 functionality on the disabled interfaces after boot, first you need to clear the flag by using ifconfig(8) like: ifconfig em0 inet6 -ifdisabled If YES, the default address selection policy is set as IPv6-preferred. The default value of $ipv6_prefer is NO. 4. If your system need to receive Router Advertisement messages, define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) scripts automatically invoke rtsol(8) when the interface becomes UP. The Router Advertisement messages are used for SLAAC (State-Less Address AutoConfiguration).
2009-09-26 18:59:00 +00:00
set_rcvar_obsolete ipv6_enable ipv6_prefer
ip6addrctl_prefer_ipv6()
{
ip6addrctl flush >/dev/null 2>&1
ip6addrctl add ::1/128 50 0
ip6addrctl add ::/0 40 1
ip6addrctl add 2002::/16 30 2
ip6addrctl add ::/96 20 3
ip6addrctl add ::ffff:0:0/96 10 4
checkyesno ip6addrctl_verbose && ip6addrctl
}
ip6addrctl_prefer_ipv4()
{
ip6addrctl flush >/dev/null 2>&1
ip6addrctl add ::ffff:0:0/96 50 0
ip6addrctl add ::1/128 40 1
ip6addrctl add ::/0 30 2
ip6addrctl add 2002::/16 20 3
ip6addrctl add ::/96 10 4
checkyesno ip6addrctl_verbose && ip6addrctl
}
ip6addrctl_start()
{
if ifconfig lo0 inet6 >/dev/null 2>&1; then
# We have IPv6 support in kernel.
# install the policy of the address selection algorithm.
if [ -f /etc/ip6addrctl.conf ]; then
ip6addrctl flush >/dev/null 2>&1
ip6addrctl install /etc/ip6addrctl.conf
checkyesno ip6addrctl_verbose && ip6addrctl
else
if checkyesno ipv6_prefer; then
ip6addrctl_prefer_ipv6
else
ip6addrctl_prefer_ipv4
fi
fi
fi
}
ip6addrctl_stop()
{
if ifconfig lo0 inet6 >/dev/null 2>&1; then
# We have IPv6 support in kernel.
ip6addrctl flush >/dev/null 2>&1
fi
}
load_rc_config $name
run_rc_command "$1"