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Bring rc.firewall{,6} more in line with the word and spirit of

Browse Source 
rc.conf(5) and the files' inline documentation.

  - Add the "closed"-type, documented in both places, but which did not
    exist in the code.

  - When provided a ruleset, the system should not make any assumptions
    about the sites's policy and should add no rules of its own.

  - Make the "UNKNOWN" (documented in-line) actual work as advertised,
    load no rules.

Prodded by:	Igor M Podlesny <poige@morning.ru>
MFC after:	1 week
This commit is contained in:
Crist J. Clark 2002-02-21 13:14:19 +00:00
parent 8d57b8d3d2
commit 5439c489f8
2 changed files with 41 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
etc/rc.firewall
View File

@ -76,6 +76,15 @@ fi
# http://www.awlonline.com/product/0%2C2627%2C0201633574%2C00.html
#
setup_loopback () {
############
# Only in rare cases do you want to change these rules
#
${fwcmd} add 100 pass all from any to any via lo0
${fwcmd} add 200 deny all from any to 127.0.0.0/8
${fwcmd} add 300 deny ip from 127.0.0.0/8 to any
}
if [ -n "${1}" ]; then
firewall_type="${1}"
fi
@ -125,18 +134,12 @@ esac
#
# ${fwcmd} add 65000 pass all from any to any
############
# Only in rare cases do you want to change these rules
#
${fwcmd} add 100 pass all from any to any via lo0
${fwcmd} add 200 deny all from any to 127.0.0.0/8
${fwcmd} add 300 deny ip from 127.0.0.0/8 to any
# Prototype setups.
#
case ${firewall_type} in
[Oo][Pp][Ee][Nn])
setup_loopback
${fwcmd} add 65000 pass all from any to any
;;
@ -151,6 +154,8 @@ case ${firewall_type} in
mask="255.255.255.0"
ip="192.0.2.1"
setup_loopback
# Allow any traffic to or from my own net.
${fwcmd} add pass all from ${ip} to ${net}:${mask}
${fwcmd} add pass all from ${net}:${mask} to ${ip}
@ -200,6 +205,8 @@ case ${firewall_type} in
imask="255.255.255.240"
iip="192.0.2.17"
setup_loopback
# Stop spoofing
${fwcmd} add deny all from ${inet}:${imask} to any in via ${oif}
${fwcmd} add deny all from ${onet}:${omask} to any in via ${iif}
@ -281,6 +288,9 @@ case ${firewall_type} in
# config file.
;;
[Cc][Ll][Oo][Ss][Ee][Dd])
setup_loopback
;;
[Uu][Nn][Kk][Nn][Oo][Ww][Nn])
;;
*)

37
etc/rc.firewall6
View File

@ -49,6 +49,21 @@ fi
# http://www.awlonline.com/product/0%2C2627%2C0201633574%2C00.html
#
setup_local () {
############
# Only in rare cases do you want to change these rules
#
${fw6cmd} add 100 pass all from any to any via lo0
#
# ND
#
# DAD
${fw6cmd} add pass ipv6-icmp from :: to ff02::/16
# RS, RA, NS, NA, redirect...
${fw6cmd} add pass ipv6-icmp from fe80::/10 to fe80::/10
${fw6cmd} add pass ipv6-icmp from fe80::/10 to ff02::/16
}
if [ -n "${1}" ]; then
ipv6_firewall_type="${1}"
fi
@ -78,24 +93,12 @@ ${fw6cmd} -f flush
#
# ${fw6cmd} add 65000 pass all from any to any
############
# Only in rare cases do you want to change these rules
#
${fw6cmd} add 100 pass all from any to any via lo0
#
# ND
#
# DAD
${fw6cmd} add pass ipv6-icmp from :: to ff02::/16
# RS, RA, NS, NA, redirect...
${fw6cmd} add pass ipv6-icmp from fe80::/10 to fe80::/10
${fw6cmd} add pass ipv6-icmp from fe80::/10 to ff02::/16
# Prototype setups.
#
case ${ipv6_firewall_type} in
[Oo][Pp][Ee][Nn])
setup_local
${fw6cmd} add 65000 pass all from any to any
;;
@ -113,6 +116,8 @@ case ${ipv6_firewall_type} in
prefixlen="64"
ip="3ffe:505:2:1::1"
setup_local
# Allow any traffic to or from my own net.
${fw6cmd} add pass all from ${ip} to ${net}/${prefixlen}
${fw6cmd} add pass all from ${net}/${prefixlen} to ${ip}
@ -174,6 +179,8 @@ case ${ipv6_firewall_type} in
iprefixlen="64"
iip="3ffe:505:2:2::1"
setup_local
# Stop spoofing
${fw6cmd} add deny all from ${inet}/${iprefixlen} to any in via ${oif}
${fw6cmd} add deny all from ${onet}/${oprefixlen} to any in via ${iif}
@ -265,6 +272,10 @@ case ${ipv6_firewall_type} in
# config file.
;;
[Cc][Ll][Oo][Ss][Ee][Dd])
# Only enable the loopback interface
${fw6cmd} add 100 pass all from any to any via lo0
;;
[Uu][Nn][Kk][Nn][Oo][Ww][Nn])
;;
*)