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[package] firewall:

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- solve scoping issues when multiple values are used, thanks Daniel Dickinson
	- ignore src_port/dest_port for proto icmp rules, ignore icmp_type for non-icmp rules
	- properly handle icmp when proto is given in numerical form (1, 58)
	- support negated icmp types


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27500 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
jow
2011-07-06 22:10:46 +00:00
parent 3cbb69a174
commit 0be37efeae
4 changed files with 26 additions and 30 deletions
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42
package/firewall/files/lib/core_rule.sh
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@@ -65,32 +65,28 @@ fw_load_rule() {
fw_get_negation src_spec '-s' "${rule_src_ip:+$rule_src_ip/$rule_src_ip_prefixlen}"
fw_get_negation dest_spec '-d' "${rule_dest_ip:+$rule_dest_ip/$rule_dest_ip_prefixlen}"
local rule_src_port_copy
local rule_dest_port_copy
[ "$rule_proto" == "tcpudp" ] && rule_proto="tcp udp"
rule_src_port_copy="$rule_src_port"
rule_dest_port_copy="$rule_dest_port"
for rule_proto in $rule_proto; do
rule_src_port="$rule_src_port_copy"
rule_dest_port="$rule_dest_port_copy"
fw_get_negation rule_proto '-p' "$rule_proto"
for rule_src_port in ${rule_src_port:-""}; do
fw_get_port_range rule_src_port $rule_src_port
fw_get_negation rule_src_port '--sport' "$rule_src_port"
for rule_dest_port in ${rule_dest_port:-""}; do
fw_get_port_range rule_dest_port $rule_dest_port
fw_get_negation rule_dest_port '--dport' "$rule_dest_port"
for rule_src_mac in ${rule_src_mac:-""}; do
fw_get_negation rule_src_mac '--mac-source' "$rule_src_mac"
for rule_icmp_type in ${rule_icmp_type:-""}; do
[ "$rule_proto" = "-p icmp" ] || rule_icmp_type=""
local pr; for pr in $rule_proto; do
fw_get_negation pr '-p' "$pr"
local sp; for sp in ${rule_src_port:-""}; do
fw_get_port_range sp $sp
fw_get_negation sp '--sport' "$sp"
local dp; for dp in ${rule_dest_port:-""}; do
fw_get_port_range dp $dp
fw_get_negation dp '--dport' "$dp"
local sm; for sm in ${rule_src_mac:-""}; do
fw_get_negation sm '--mac-source' "$sm"
local it; for it in ${rule_icmp_type:-""}; do
fw_get_negation it '--icmp-type' "$it"
case "$pr" in
*" icmp"|*" icmpv6"|*" 1"|*" 58") sp=""; dp="" ;;
*) it="" ;;
esac
fw add $mode $table $chain $target + \
{ $rule_src_ip $rule_dest_ip } { \
$src_spec $dest_spec $rule_proto \
$rule_src_port $rule_dest_port \
${rule_src_mac:+-m mac $rule_src_mac} \
${rule_icmp_type:+--icmp-type $rule_icmp_type} \
$src_spec $dest_spec \
$pr $sp $dp $it \
${sm:+-m mac $sm} \
${rule_limit:+-m limit --limit $rule_limit \
${rule_limit_burst:+--limit-burst $rule_limit_burst}} \
$rule_extra \