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a85c20e180
proxying with many options to handle several use-cases. It replies to a neighbor solicitation with a specific neighbor advertisement, in order to let the PE uplink router send further packets to a CPE downlink router, that may or may not be the same node that the one which runs ndproxy. The main difference with the ndp(8) command-line tool is that, with ndproxy(4), the host running ndp can be used only to redirect packets to another IPv6 internal router, for instance a dedicated one with hardware support of IPv6 routing processes. WWW: http://www.fenyo.net/newweb/ndproxy.html PR: 219622 Submitted by: Alexandre Fenyo (maintainer) Reviewed by: matthew (mentor), mat Approved by: matthew (mentor) Differential Revision: https://reviews.freebsd.org/D11892
73 lines
1.9 KiB
Bash
73 lines
1.9 KiB
Bash
#!/bin/sh
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#
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# $FreeBSD$
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#
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# PROVIDE: ndproxy
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# REQUIRE: NETWORKING sysctl
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# KEYWORD: nojail
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. /etc/rc.subr
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name="ndproxy"
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rcvar=ndproxy_enable
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start_cmd="ndproxy_start"
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stop_cmd="ndproxy_stop"
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ndproxy_start()
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{
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echo "Starting ndproxy:"
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if ! sysctl net.inet6.ndproxyconf_uplink_interface > /dev/null 2>&1; then
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if ! kldload ndproxy > /dev/null 2>&1; then
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echo Failure loading ndproxy.
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return;
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fi
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fi
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sysctl net.inet6.ndproxycount=0
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if [ -z "${ndproxy_uplink_interface}" ]; then
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echo "Warning: ndproxy_uplink_interface should be defined in rc.conf (see ndproxy(4))."
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fi
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sysctl net.inet6.ndproxyconf_uplink_interface=${ndproxy_uplink_interface}
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if [ -z "${ndproxy_downlink_mac_address}" ]; then
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echo "Warning: ndproxy_downlink_mac_address should be defined in rc.conf (see ndproxy(4))."
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fi
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sysctl net.inet6.ndproxyconf_downlink_mac_address=${ndproxy_downlink_mac_address}
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if [ -z "${ndproxy_uplink_ipv6_addresses}" ]; then
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echo "Warning: ndproxy_uplink_ipv6_addresses should be defined in rc.conf (see ndproxy(4))."
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fi
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sysctl net.inet6.ndproxyconf_exception_ipv6_addresses=${ndproxy_exception_ipv6_addresses}
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# Note that ndproxy_exception_ipv6_addresses may be left empty.
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if [ -n "${ndproxy_uplink_interface}" ]; then
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if ! ifconfig ${ndproxy_uplink_interface} | head -1 | grep -q PPROMISC; then
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echo "Putting interface ${ndproxy_uplink_interface} into permanently promiscuous mode."
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ifconfig ${ndproxy_uplink_interface} promisc
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fi
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fi
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sysctl net.inet6.ndproxyconf_uplink_ipv6_addresses=${ndproxy_uplink_ipv6_addresses}
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echo Done.
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}
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ndproxy_stop()
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{
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echo "Stopping ndproxy:"
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if ! sysctl net.inet6.ndproxyconf_uplink_interface > /dev/null 2>&1; then
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echo Failure unloading ndproxy.
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else
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if ! kldunload ndproxy > /dev/null 2>&1; then
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echo Failure unloading ndproxy.
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else
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echo Done.
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fi
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fi
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}
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load_rc_config $name
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run_rc_command "$1"
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