54 lines
1.4 KiB
Bash
54 lines
1.4 KiB
Bash
#!/bin/sh
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# Freifunk Firewall addons
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# $Id: firewall.freifunk 4140 2009-01-25 19:38:41Z jow $
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#
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# Apply advanced settings
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#
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apply_advanced() {
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local tcp_ecn
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local tcp_window_scaling
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local accept_redirects
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local accept_source_route
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config_get_bool tcp_ecn $1 tcp_ecn 1
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config_get_bool tcp_window_scaling $1 tcp_window_scaling 1
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config_get_bool accept_redirects $1 accept_redirects 0
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config_get_bool accept_source_route $1 accept_source_route 0
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logger -t firewall.freifunk "tcp_ecn is $tcp_ecn"
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logger -t firewall.freifunk "tcp_window_scaling is $tcp_window_scaling"
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logger -t firewall.freifunk "accept_redirects is $accept_redirects"
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logger -t firewall.freifunk "accept_source_route is $accept_source_route"
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sysctl -w net.ipv4.tcp_ecn=$tcp_ecn >/dev/null
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sysctl -w net.ipv4.tcp_window_scaling=$tcp_window_scaling >/dev/null
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for f in /proc/sys/net/ipv4/conf/*/accept_redirects; do
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echo $accept_redirects > $f
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done
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for f in /proc/sys/net/ipv4/conf/*/accept_source_route; do
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echo $accept_source_route > $f
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done
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}
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config_foreach apply_advanced advanced
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#
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# Apply fixes for masquerading rules
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#
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apply_nat_fix() {
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local up
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local ifname
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config_get up $1 up
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[ -n "$up" ] || return 0
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(ACTION="ifup" INTERFACE="$1" . /etc/hotplug.d/iface/22-firewall-nat-fix )
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}
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uci_set_state firewall core loaded 1
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config_foreach fw_addif interface
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config_foreach apply_nat_fix interface
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