netoptions revision 197702 
1#!/bin/sh
2#
3# $FreeBSD: head/etc/rc.d/netoptions 197702 2009-10-02 06:51:39Z hrs $
4#
5
6# PROVIDE: netoptions
7# REQUIRE: FILESYSTEMS
8# BEFORE: netif
9# KEYWORD: nojail
10
11. /etc/rc.subr
12. /etc/network.subr
13
14name="netoptions"
15start_cmd="netoptions_start"
16stop_cmd=:
17
18_netoptions_initdone=
19netoptions_init()
20{
21	if [ -z "${_netoptions_initdone}" ]; then
22		echo -n 'Additional TCP/IP options:'
23		_netoptions_initdone=yes
24	fi
25}
26
27netoptions_start()
28{
29	local _af
30
31	for _af in inet inet6; do
32		afexists ${_af} && eval netoptions_${_af}
33	done
34	[ -n "${_netoptions_initdone}" ] && echo '.'
35}
36
37netoptions_inet()
38{
39	case ${log_in_vain} in
40	[12])
41		netoptions_init
42		echo -n " log_in_vain=${log_in_vain}"
43		${SYSCTL_W} net.inet.tcp.log_in_vain=${log_in_vain} >/dev/null
44		${SYSCTL_W} net.inet.udp.log_in_vain=${log_in_vain} >/dev/null
45		;;
46	*)
47		${SYSCTL_W} net.inet.tcp.log_in_vain=0 >/dev/null
48		${SYSCTL_W} net.inet.udp.log_in_vain=0 >/dev/null
49		;;
50	esac
51
52	if checkyesno tcp_extensions; then
53		${SYSCTL_W} net.inet.tcp.rfc1323=1 >/dev/null
54	else
55		netoptions_init
56		echo -n ' rfc1323 extensions=${tcp_extensions}'
57		${SYSCTL_W} net.inet.tcp.rfc1323=0 >/dev/null
58	fi
59
60	if checkyesno tcp_keepalive; then
61		${SYSCTL_W} net.inet.tcp.always_keepalive=1 >/dev/null
62	else
63		netoptions_init
64		echo -n ' TCP keepalive=${tcp_keepalive}'
65		${SYSCTL_W} net.inet.tcp.always_keepalive=0 >/dev/null
66	fi
67
68	if checkyesno tcp_drop_synfin; then
69		netoptions_init
70		echo -n ' drop SYN+FIN packets=${tcp_drop_synfin}'
71		${SYSCTL_W} net.inet.tcp.drop_synfin=1 >/dev/null
72	else
73		${SYSCTL_W} net.inet.tcp.drop_synfin=0 >/dev/null
74	fi
75
76	case ${ip_portrange_first} in
77	[0-9]*)
78		netoptions_init
79		echo -n " ip_portrange_first=$ip_portrange_first"
80		${SYSCTL_W} net.inet.ip.portrange.first=$ip_portrange_first >/dev/null
81		;;
82	esac
83
84	case ${ip_portrange_last} in
85	[0-9]*)
86		netoptions_init
87		echo -n " ip_portrange_last=$ip_portrange_last"
88		${SYSCTL_W} net.inet.ip.portrange.last=$ip_portrange_last >/dev/null
89		;;
90	esac
91}
92
93netoptions_inet6()
94{
95	if checkyesno ipv6_ipv4mapping; then
96		netoptions_init
97		echo -n " ipv4-mapped-ipv6=${ipv6_ipv4mapping}"
98		${SYSCTL_W} net.inet6.ip6.v6only=0 >/dev/null
99	else
100		${SYSCTL_W} net.inet6.ip6.v6only=1 >/dev/null
101	fi
102}
103
104load_rc_config $name
105run_rc_command $1
106