106 lines
2.1 KiB
Bash
Executable File
106 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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#
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# $FreeBSD$
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#
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# PROVIDE: netoptions
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# REQUIRE: FILESYSTEMS
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# BEFORE: netif
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# KEYWORD: nojail
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. /etc/rc.subr
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. /etc/network.subr
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name="netoptions"
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start_cmd="netoptions_start"
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stop_cmd=:
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_netoptions_initdone=
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netoptions_init()
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{
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if [ -z "${_netoptions_initdone}" ]; then
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echo -n 'Additional TCP/IP options:'
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_netoptions_initdone=yes
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fi
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}
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netoptions_start()
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{
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local _af
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for _af in inet inet6; do
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afexists ${_af} && eval netoptions_${_af}
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done
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[ -n "${_netoptions_initdone}" ] && echo '.'
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}
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netoptions_inet()
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{
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case ${log_in_vain} in
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[12])
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netoptions_init
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echo -n " log_in_vain=${log_in_vain}"
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${SYSCTL_W} net.inet.tcp.log_in_vain=${log_in_vain} >/dev/null
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${SYSCTL_W} net.inet.udp.log_in_vain=${log_in_vain} >/dev/null
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;;
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*)
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${SYSCTL_W} net.inet.tcp.log_in_vain=0 >/dev/null
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${SYSCTL_W} net.inet.udp.log_in_vain=0 >/dev/null
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;;
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esac
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if checkyesno tcp_extensions; then
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${SYSCTL_W} net.inet.tcp.rfc1323=1 >/dev/null
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else
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netoptions_init
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echo -n " rfc1323 extensions=${tcp_extensions}"
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${SYSCTL_W} net.inet.tcp.rfc1323=0 >/dev/null
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fi
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if checkyesno tcp_keepalive; then
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${SYSCTL_W} net.inet.tcp.always_keepalive=1 >/dev/null
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else
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netoptions_init
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echo -n " TCP keepalive=${tcp_keepalive}"
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${SYSCTL_W} net.inet.tcp.always_keepalive=0 >/dev/null
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fi
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if checkyesno tcp_drop_synfin; then
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netoptions_init
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echo -n " drop SYN+FIN packets=${tcp_drop_synfin}"
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${SYSCTL_W} net.inet.tcp.drop_synfin=1 >/dev/null
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else
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${SYSCTL_W} net.inet.tcp.drop_synfin=0 >/dev/null
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fi
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case ${ip_portrange_first} in
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[0-9]*)
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netoptions_init
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echo -n " ip_portrange_first=$ip_portrange_first"
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${SYSCTL_W} net.inet.ip.portrange.first=$ip_portrange_first >/dev/null
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;;
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esac
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case ${ip_portrange_last} in
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[0-9]*)
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netoptions_init
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echo -n " ip_portrange_last=$ip_portrange_last"
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${SYSCTL_W} net.inet.ip.portrange.last=$ip_portrange_last >/dev/null
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;;
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esac
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}
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netoptions_inet6()
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{
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if checkyesno ipv6_ipv4mapping; then
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netoptions_init
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echo -n " ipv4-mapped-ipv6=${ipv6_ipv4mapping}"
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${SYSCTL_W} net.inet6.ip6.v6only=0 >/dev/null
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else
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${SYSCTL_W} net.inet6.ip6.v6only=1 >/dev/null
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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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