810e7c4bf1
git-svn-id: svn://svn.openwrt.org/openwrt/packages@21371 3c298f89-4303-0410-b956-a3cf2f4a3e73
74 lines
1.7 KiB
Bash
74 lines
1.7 KiB
Bash
#!/bin/sh
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. /etc/functions.sh
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save_print_table_chain() {
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local table="$1"
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local chain="$2"
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local fsave="$3"
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local fsavetmp="$fsave"".tmp"
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local next_table_line
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local cur_table_line
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local table_line
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table_line="$(($(grep -n "^*$table" "$fsave" | cut -f1 -d: ) + 1))"
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tail -n+$table_line $fsave >"$fsavetmp"
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for cur_table_line in $(grep -n "^*" "$fsavetmp"); do
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[ -z "$next_table_line" ] && {
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local lineno="$(echo $cur_table_line | cut -f1 -d:)"
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[ -n "$lineno" ] && [ "$lineno" -gt $(($table_line - 1)) ] && {
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next_table_line=$lineno
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}
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}
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done
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[ -z "$next_table_line" ] && {
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next_table_line="$(cat $fsavetmp|wc -l)"
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}
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next_table_line=$(($next_table_line - 1))
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head -n $next_table_line "$fsave.tmp" | grep $chain | grep -Ev "^:$chain"
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rm -f "$fsavetmp"
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}
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save_save_fw_chain() {
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local chain
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local table
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local fsave="/tmp/.firewall/save"
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config_get chain $1 chain
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config_get table $1 table filter
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[ -z "$chain" ] && return 0
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mkdir -p /tmp/.firewall
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iptables-save >"$fsave"
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save_print_table_chain $table $chain "$fsave" > /tmp/.firewall/save-$table-$chain
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}
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save_load_fw_chain() {
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local chain
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local table
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config_get chain $1 chain
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config_get table $1 table filter
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[ -e /tmp/.firewall/save-$table-$chain ] && [ "$(cat /tmp/.firewall/save-$table-$chain | wc -l)" -ge 1 ] && {
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iptables -t $table -N $chain
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while read line; do
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sh -c "iptables -t $table $line"
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done < /tmp/.firewall/save-$table-$chain
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rm /tmp/.firewall/save-$table-$chain
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}
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}
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save_pre_stop_cb() {
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echo "Saving dynamic firewall chains"
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config_load firewall
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config_foreach save_save_fw_chain save
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}
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save_post_core_cb() {
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echo "Loading dynamic firewall chains"
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config_load firewall
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config_foreach save_load_fw_chain save
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}
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