| verzia 2.14, 2005/01/16 11:06:46 |
verzia 2.15, 2005/01/16 12:13:32 |
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| # Licensed under terms of GNU General Public License. |
# Licensed under terms of GNU General Public License. |
| # All rights reserved. |
# All rights reserved. |
| # |
# |
| # $Platon: scripts/shell/firewall/fw-universal.sh,v 2.13 2005/01/16 11:06:10 rajo Exp $ |
# $Platon: scripts/shell/firewall/fw-universal.sh,v 2.14 2005/01/16 11:06:46 rajo Exp $ |
| # |
# |
| # Changelog: |
# Changelog: |
| # 2003-10-24 - created |
# 2003-10-24 - created |
| Riadok 111 remove_chains() |
|
| Riadok 111 remove_chains() |
|
| |
|
| } # }}} |
} # }}} |
| |
|
| # all packets on loopback are accpted |
|
| set_loopback() |
|
| { # {{{ |
|
| $IPTABLES -A INPUT -j ACCEPT -i $LO_IFACE |
|
| $IPTABLES -A OUTPUT -j ACCEPT -o $LO_IFACE |
|
| } # }}} |
|
| |
|
| # DROP packages from nmap(1) |
# DROP packages from nmap(1) |
| nmap_scan_filter() |
nmap_scan_filter() |
| { # {{{ |
{ # {{{ |
|
|
| |
|
| } # }}} |
} # }}} |
| |
|
| allow_input() |
allow_accept_all() |
| { # {{{ |
{ # {{{ |
| |
|
| if [ ! -z "$IFACE_ACCEPT_ALL" ]; then |
if [ ! -z "$IFACE_ACCEPT_ALL" ]; then |
| echo -en "Accepting ALL packets on interfaces:" |
echo -en "Accepting ALL packets on interfaces:" |
| for iface in $IFACE_ACCEPT_ALL; do |
for iface in $IFACE_ACCEPT_ALL; do |
|
|
| done |
done |
| echo " done." |
echo " done." |
| fi |
fi |
| |
} # }}} |
| |
|
| |
allow_input() |
| |
{ # {{{ |
| |
|
| if [ ! -z "$ALL_ACCEPT_INPUT_TCP" ]; then |
if [ ! -z "$ALL_ACCEPT_INPUT_TCP" ]; then |
| echo -en "Accepting ALL INPUT TCP connections on ports:" |
echo -en "Accepting ALL INPUT TCP connections on ports:" |
| Riadok 581 parse_ifconfig() |
|
| Riadok 577 parse_ifconfig() |
|
| parse_ifconfig |
parse_ifconfig |
| print_iface_status |
print_iface_status |
| |
|
| # $interfaces - all interfaces |
# |
| |
# Split interfaces into 2 groups: |
| |
# |
| |
# $INTERFACES_ACCEPT_ALL - interfaces withouth restrictions |
| |
# |
| # $INTERFACES - all interfaces withouth loopback |
# $INTERFACES - all interfaces withouth loopback |
| |
# and devices without restrictions (e.g. tun0 tun1 tap0 ...) |
| |
# |
| |
# list of all interfaces is in $interfaces variable |
| |
# |
| INTERFACES="" |
INTERFACES="" |
| |
INTERFACES_ACCEPT_ALL="" |
| |
regexp='^\('`echo $IFACE_ACCEPT_ALL | sed 's/ /\\\|/g; s/+/.*/g;'`'\)$' |
| for iface in $interfaces; do |
for iface in $interfaces; do |
| if [ "o$iface" = "olo" ]; then continue; fi |
#if [ "o$iface" = "olo" ]; then continue; fi |
| INTERFACES="$INTERFACES $iface"; |
echo $iface | grep -q -e "$regexp" |
| |
if [ $? = 0 ] || [ "o$iface" = "olo" ]; then # lo interface is always here |
| |
INTERFACES_ACCEPT_ALL="$INTERFACES_ACCEPT_ALL $iface"; |
| |
else |
| |
INTERFACES="$INTERFACES $iface"; |
| |
fi |
| done |
done |
| |
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| |
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| # |
# |
| # (un)commnet next lines as needed |
# (un)commnet next lines as needed |
| # |
# |
| set_loopback |
allow_accept_all |
| nmap_scan_filter |
nmap_scan_filter |
| invalid_packet_filter |
invalid_packet_filter |
| anti_spoof_filter |
anti_spoof_filter |