Skip to content

fix: 修复iptables放行端口添加过多导致溢出的错误 #1293

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
kannakamuiuwu wants to merge 3 commits into
base: dev
Choose a base branch
from
+68 −14
Open

fix: 修复iptables放行端口添加过多导致溢出的错误 #1293

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
ca6e79d
fix: 修复iptables放行端口添加过多导致溢出的错误
kannakamuiuwu Jun 25, 2026
c25c780
fix: 修复iptables放行端口添加过多导致溢出的错误
kannakamuiuwu Jun 25, 2026
f89ac97
Update fw_stop.sh
kannakamuiuwu Jun 25, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
17 changes: 16 additions & 1 deletion scripts/starts/fw_iptables.sh
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -72,7 +72,22 @@ start_ipt_route() { #iptables-route通用工具
done
fi
#将所在链指定流量指向shellcrash表
"$1" $w -t "$2" -I "$3" -p "$5" $ports -j "$4"
if [ -n "$ports" ]; then
clean_ports=$(echo "$multiport" | sed 's/ //g')
echo "$clean_ports" | awk -F, '{
for(i=1; i<=NF; i+=9) {
group=""
for(j=i; j<i+9 && j<=NF; j++) {
group=(group == "" ? $j : group "," $j)
}
print group
}
}' | while read -r port_group; do
[ -n "$port_group" ] && "$1" $w -t "$2" -I "$3" -p "$5" -m multiport --dports "$port_group" -j "$4"
done
else
"$1" $w -t "$2" -I "$3" -p "$5" -j "$4"
fi
[ "$dns_mod" = "mix" -o "$dns_mod" = "fake-ip" ] && [ "$common_ports" = "ON" ] && [ "$1" = iptables ] && "$1" $w -t "$2" -I "$3" -p "$5" -d 28.0.0.0/8 -j "$4"
[ "$dns_mod" = "mix" -o "$dns_mod" = "fake-ip" ] && [ "$common_ports" = "ON" ] && [ "$1" = ip6tables ] && "$1" $w -t "$2" -I "$3" -p "$5" -d fc00::/16 -j "$4"
}
Expand Down
65 changes: 52 additions & 13 deletions scripts/starts/fw_stop.sh
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -20,24 +20,44 @@ ckcmd iptables && {
$iptable -t nat -D PREROUTING -p udp --dport 53 -j shellcrash_dns 2>/dev/null
$iptable -t nat -D OUTPUT -p udp --dport 53 -j shellcrash_dns_out 2>/dev/null
$iptable -t nat -D OUTPUT -p tcp --dport 53 -j shellcrash_dns_out 2>/dev/null
if [ -n "$ports" ]; then
clean_ports=$(echo "$multiport" | sed 's/ //g')
echo "$clean_ports" | awk -F, '{
for(i=1; i<=NF; i+=9) {
group=""; for(j=i; j<i+9 && j<=NF; j++) group=(group == "" ? $j : group "," $j)
print group
}
}' | while read -r port_group; do
if [ -n "$port_group" ]; then
$iptable -t nat -D PREROUTING -p tcp -m multiport --dports "$port_group" -j shellcrash 2>/dev/null
$iptable -t nat -D OUTPUT -p tcp -m multiport --dports "$port_group" -j shellcrash_out 2>/dev/null
$iptable -t nat -D PREROUTING -p tcp -m multiport --dports "$port_group" -j shellcrash_vm 2>/dev/null
$iptable -t mangle -D PREROUTING -p tcp -m multiport --dports "$port_group" -j shellcrash_mark 2>/dev/null
$iptable -t mangle -D PREROUTING -p udp -m multiport --dports "$port_group" -j shellcrash_mark 2>/dev/null
$iptable -t mangle -D OUTPUT -p tcp -m multiport --dports "$port_group" -j shellcrash_mark_out 2>/dev/null
$iptable -t mangle -D OUTPUT -p udp -m multiport --dports "$port_group" -j shellcrash_mark_out 2>/dev/null
fi
done
else
$iptable -t nat -D PREROUTING -p tcp -j shellcrash 2>/dev/null
$iptable -t nat -D OUTPUT -p tcp -j shellcrash_out 2>/dev/null
$iptable -t nat -D PREROUTING -p tcp -j shellcrash_vm 2>/dev/null
$iptable -t mangle -D PREROUTING -p tcp -j shellcrash_mark 2>/dev/null
$iptable -t mangle -D PREROUTING -p udp -j shellcrash_mark 2>/dev/null
$iptable -t mangle -D OUTPUT -p tcp -j shellcrash_mark_out 2>/dev/null
$iptable -t mangle -D OUTPUT -p udp -j shellcrash_mark_out 2>/dev/null
fi
#redir
$iptable -t nat -D PREROUTING -p tcp $ports -j shellcrash 2>/dev/null
$iptable -t nat -D PREROUTING -p tcp -d 28.0.0.0/8 -j shellcrash 2>/dev/null
$iptable -t nat -D OUTPUT -p tcp $ports -j shellcrash_out 2>/dev/null
$iptable -t nat -D OUTPUT -p tcp -d 28.0.0.0/8 -j shellcrash_out 2>/dev/null
#vm_dns
$iptable -t nat -D PREROUTING -p tcp --dport 53 -j shellcrash_vm_dns 2>/dev/null
$iptable -t nat -D PREROUTING -p udp --dport 53 -j shellcrash_vm_dns 2>/dev/null
#vm_redir
$iptable -t nat -D PREROUTING -p tcp $ports -j shellcrash_vm 2>/dev/null
$iptable -t nat -D PREROUTING -p tcp -d 28.0.0.0/8 -j shellcrash_vm 2>/dev/null
#TPROXY&tun
$iptable -t mangle -D PREROUTING -p tcp $ports -j shellcrash_mark 2>/dev/null
$iptable -t mangle -D PREROUTING -p udp $ports -j shellcrash_mark 2>/dev/null
$iptable -t mangle -D PREROUTING -p tcp -d 28.0.0.0/8 -j shellcrash_mark 2>/dev/null
$iptable -t mangle -D PREROUTING -p udp -d 28.0.0.0/8 -j shellcrash_mark 2>/dev/null
$iptable -t mangle -D OUTPUT -p tcp $ports -j shellcrash_mark_out 2>/dev/null
$iptable -t mangle -D OUTPUT -p udp $ports -j shellcrash_mark_out 2>/dev/null
$iptable -t mangle -D OUTPUT -p tcp -d 28.0.0.0/8 -j shellcrash_mark_out 2>/dev/null
$iptable -t mangle -D OUTPUT -p udp -d 28.0.0.0/8 -j shellcrash_mark_out 2>/dev/null
$iptable -t mangle -D PREROUTING -m mark --mark $fwmark -p tcp -j TPROXY --on-port $tproxy_port 2>/dev/null
Expand Down Expand Up @@ -73,20 +93,39 @@ ckcmd ip6tables && {
#dns
$ip6table -t nat -D PREROUTING -p tcp --dport 53 -j shellcrashv6_dns 2>/dev/null
$ip6table -t nat -D PREROUTING -p udp --dport 53 -j shellcrashv6_dns 2>/dev/null
if [ -n "$ports" ]; then
clean_ports=$(echo "$multiport" | sed 's/ //g')
echo "$clean_ports" | awk -F, '{
for(i=1; i<=NF; i+=9) {
group=""; for(j=i; j<i+9 && j<=NF; j++) group=(group == "" ? $j : group "," $j)
print group
}
}' | while read -r port_group; do
if [ -n "$port_group" ]; then
$ip6table -t nat -D PREROUTING -p tcp -m multiport --dports "$port_group" -j shellcrashv6 2>/dev/null
$ip6table -t nat -D OUTPUT -p tcp -m multiport --dports "$port_group" -j shellcrashv6_out 2>/dev/null
$ip6table -t mangle -D PREROUTING -p tcp -m multiport --dports "$port_group" -j shellcrashv6_mark 2>/dev/null
$ip6table -t mangle -D PREROUTING -p udp -m multiport --dports "$port_group" -j shellcrashv6_mark 2>/dev/null
$ip6table -t mangle -D OUTPUT -p tcp -m multiport --dports "$port_group" -j shellcrashv6_mark_out 2>/dev/null
$ip6table -t mangle -D OUTPUT -p udp -m multiport --dports "$port_group" -j shellcrashv6_mark_out 2>/dev/null
fi
done
else
$ip6table -t nat -D PREROUTING -p tcp -j shellcrashv6 2>/dev/null
$ip6table -t nat -D OUTPUT -p tcp -j shellcrashv6_out 2>/dev/null
$ip6table -t mangle -D PREROUTING -p tcp -j shellcrashv6_mark 2>/dev/null
$ip6table -t mangle -D PREROUTING -p udp -j shellcrashv6_mark 2>/dev/null
$ip6table -t mangle -D OUTPUT -p tcp -j shellcrashv6_mark_out 2>/dev/null
$ip6table -t mangle -D OUTPUT -p udp -j shellcrashv6_mark_out 2>/dev/null
fi
#redir
$ip6table -t nat -D PREROUTING -p tcp $ports -j shellcrashv6 2>/dev/null
$ip6table -t nat -D PREROUTING -p tcp -d fc00::/16 -j shellcrashv6 2>/dev/null
$ip6table -t nat -D OUTPUT -p tcp $ports -j shellcrashv6_out 2>/dev/null
$ip6table -t nat -D OUTPUT -p tcp -d fc00::/16 -j shellcrashv6_out 2>/dev/null
$ip6table -D INPUT -p tcp --dport 53 -j REJECT 2>/dev/null
$ip6table -D INPUT -p udp --dport 53 -j REJECT 2>/dev/null
#mark
$ip6table -t mangle -D PREROUTING -p tcp $ports -j shellcrashv6_mark 2>/dev/null
$ip6table -t mangle -D PREROUTING -p udp $ports -j shellcrashv6_mark 2>/dev/null
$ip6table -t mangle -D PREROUTING -p tcp -d fc00::/16 -j shellcrashv6_mark 2>/dev/null
$ip6table -t mangle -D PREROUTING -p udp -d fc00::/16 -j shellcrashv6_mark 2>/dev/null
$ip6table -t mangle -D OUTPUT -p tcp $ports -j shellcrashv6_mark_out 2>/dev/null
$ip6table -t mangle -D OUTPUT -p udp $ports -j shellcrashv6_mark_out 2>/dev/null
$ip6table -t mangle -D OUTPUT -p tcp -d fc00::/16 -j shellcrashv6_mark_out 2>/dev/null
$ip6table -t mangle -D OUTPUT -p udp -d fc00::/16 -j shellcrashv6_mark_out 2>/dev/null
$ip6table -D INPUT -p udp --dport 443 $set_cn_ip -j REJECT 2>/dev/null
Expand Down