mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-27 22:03:31 +01:00
133 lines
4.2 KiB
Bash
133 lines
4.2 KiB
Bash
#!/bin/bash
|
|
# Written by Marco Bonetti & Mike Perry
|
|
# Based on instructions from Dan Singletary's ADSL Bandwidth Management HOWTO
|
|
# http://www.faqs.org/docs/Linux-HOWTO/ADSL-Bandwidth-Management-HOWTO.html
|
|
# This script is Public Domain.
|
|
|
|
# BEGIN USER TUNABLE PARAMETERS
|
|
|
|
DEV=eth0
|
|
|
|
# NOTE! You must START Tor under this UID. Using the Tor User/Group
|
|
# config setting is NOT sufficient.
|
|
TOR_UID=$(id -u tor)
|
|
|
|
# If the UID mechanism doesn't work for you, you can set this parameter
|
|
# instead. If set, it will take precedence over the UID setting. Note that
|
|
# you need multiple IPs for this to work.
|
|
#TOR_IP="42.42.42.42"
|
|
|
|
# Average ping to most places on the net, milliseconds
|
|
RTT_LATENCY=40
|
|
|
|
# RATE_UP must be less than your connection's upload capacity. If it is
|
|
# larger, then the bottleneck will be at your router's queue, which you
|
|
# do not control. This will cause congestion and a revert to normal TCP
|
|
# fairness no matter what the queing priority is.
|
|
RATE_UP=5000
|
|
|
|
# RATE_UP_TOR is the minimum speed your Tor connections will have.
|
|
# They will have at least this much bandwidth for upload
|
|
RATE_UP_TOR=1500
|
|
|
|
# RATE_UP_TOR_CEIL is the maximum rate allowed for all Tor trafic
|
|
RATE_UP_TOR_CEIL=5000
|
|
|
|
CHAIN=OUTPUT
|
|
#CHAIN=PREROUTING
|
|
#CHAIN=POSTROUTING
|
|
|
|
MTU=1500
|
|
AVG_PKT=900
|
|
|
|
# END USER TUNABLE PARAMETERS
|
|
|
|
# The queue size should be no larger than your bandwidth-delay
|
|
# product. This is RT latency*bandwidth/MTU/2
|
|
|
|
BDP=$(expr $RTT_LATENCY \* $RATE_UP / $AVG_PKT)
|
|
|
|
# Further research indicates that the BDP calculations should use
|
|
# RTT/sqrt(n) where n is the expected number of active connections..
|
|
|
|
BDP=$(expr $BDP / 4)
|
|
|
|
if [ "$1" = "status" ]
|
|
then
|
|
echo "[qdisc]"
|
|
tc -s qdisc show dev $DEV
|
|
tc -s qdisc show dev imq0
|
|
echo "[class]"
|
|
tc -s class show dev $DEV
|
|
tc -s class show dev imq0
|
|
echo "[filter]"
|
|
tc -s filter show dev $DEV
|
|
tc -s filter show dev imq0
|
|
echo "[iptables]"
|
|
iptables -t mangle -L TORSHAPER-OUT -v -x 2> /dev/null
|
|
exit
|
|
fi
|
|
|
|
|
|
# Reset everything to a known state (cleared)
|
|
tc qdisc del dev $DEV root 2> /dev/null > /dev/null
|
|
tc qdisc del dev imq0 root 2> /dev/null > /dev/null
|
|
iptables -t mangle -D POSTROUTING -o $DEV -j TORSHAPER-OUT 2> /dev/null > /dev/null
|
|
iptables -t mangle -D PREROUTING -o $DEV -j TORSHAPER-OUT 2> /dev/null > /dev/null
|
|
iptables -t mangle -D OUTPUT -o $DEV -j TORSHAPER-OUT 2> /dev/null > /dev/null
|
|
iptables -t mangle -F TORSHAPER-OUT 2> /dev/null > /dev/null
|
|
iptables -t mangle -X TORSHAPER-OUT 2> /dev/null > /dev/null
|
|
ip link set imq0 down 2> /dev/null > /dev/null
|
|
rmmod imq 2> /dev/null > /dev/null
|
|
|
|
if [ "$1" = "stop" ]
|
|
then
|
|
echo "Shaping removed on $DEV."
|
|
exit
|
|
fi
|
|
|
|
# Outbound Shaping (limits total bandwidth to RATE_UP)
|
|
|
|
ip link set dev $DEV qlen $BDP
|
|
|
|
# Add HTB root qdisc, default is high prio
|
|
tc qdisc add dev $DEV root handle 1: htb default 20
|
|
|
|
# Add main rate limit class
|
|
tc class add dev $DEV parent 1: classid 1:1 htb rate ${RATE_UP}kbit
|
|
|
|
# Create the two classes, giving Tor at least RATE_UP_TOR kbit and capping
|
|
# total upstream at RATE_UP so the queue is under our control.
|
|
tc class add dev $DEV parent 1:1 classid 1:20 htb rate $(expr $RATE_UP - $RATE_UP_TOR)kbit ceil ${RATE_UP}kbit prio 0
|
|
tc class add dev $DEV parent 1:1 classid 1:21 htb rate $[$RATE_UP_TOR]kbit ceil ${RATE_UP_TOR_CEIL}kbit prio 10
|
|
|
|
# Start up pfifo
|
|
tc qdisc add dev $DEV parent 1:20 handle 20: pfifo limit $BDP
|
|
tc qdisc add dev $DEV parent 1:21 handle 21: pfifo limit $BDP
|
|
|
|
# filter traffic into classes by fwmark
|
|
tc filter add dev $DEV parent 1:0 prio 0 protocol ip handle 20 fw flowid 1:20
|
|
tc filter add dev $DEV parent 1:0 prio 0 protocol ip handle 21 fw flowid 1:21
|
|
|
|
# add TORSHAPER-OUT chain to the mangle table in iptables
|
|
iptables -t mangle -N TORSHAPER-OUT
|
|
iptables -t mangle -I $CHAIN -o $DEV -j TORSHAPER-OUT
|
|
|
|
|
|
# Set firewall marks
|
|
# Low priority to Tor
|
|
if [ ""$TOR_IP == "" ]
|
|
then
|
|
echo "Using UID-based QoS. UID $TOR_UID marked as low priority."
|
|
iptables -t mangle -A TORSHAPER-OUT -m owner --uid-owner $TOR_UID -j MARK --set-mark 21
|
|
else
|
|
echo "Using IP-based QoS. $TOR_IP marked as low priority."
|
|
iptables -t mangle -A TORSHAPER-OUT -s $TOR_IP -j MARK --set-mark 21
|
|
fi
|
|
|
|
# High prio for everything else
|
|
iptables -t mangle -A TORSHAPER-OUT -m mark --mark 0 -j MARK --set-mark 20
|
|
|
|
echo "Outbound shaping added to $DEV. Rate for Tor upload at least: ${RATE_UP_TOR}Kbyte/sec."
|
|
|