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Merge #9552: Add IPv6 support to qos.sh

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fc089ae Add IPv6 support to qos.sh (James White)
This commit is contained in:
Wladimir J. van der Laan 2017-01-19 14:11:27 +01:00 committed by Alexander Block
parent 197fbea84b
commit 78a7a9f30b
2 changed files with 24 additions and 10 deletions
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4
contrib/qos/README.md
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@ -1,5 +1,5 @@
### Qos ###
### QoS (Quality of service) ###
This is a Linux bash script that will set up tc to limit the outgoing bandwidth for connections to the Dash network. It limits outbound TCP traffic with a source or destination port of 9999, but not if the destination IP is within a LAN (defined as 192.168.x.x).
This is a Linux bash script that will set up tc to limit the outgoing bandwidth for connections to the Dash network. It limits outbound TCP traffic with a source or destination port of 9999, but not if the destination IP is within a LAN.
This means one can have an always-on bitcoind instance running, and another local bitcoind/bitcoin-qt instance which connects to this node and receives blocks from it.

30
contrib/qos/tc.sh
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@ -1,4 +1,4 @@
# Copyright (c) 2013 The Bitcoin Core developers
# Copyright (c) 2017 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
@ -8,8 +8,10 @@ IF="eth0"
LINKCEIL="1gbit"
#limit outbound Dash protocol traffic to this rate
LIMIT="160kbit"
#defines the address space for which you wish to disable rate limiting
LOCALNET="192.168.0.0/16"
#defines the IPv4 address space for which you wish to disable rate limiting
LOCALNET_V4="192.168.0.0/16"
#defines the IPv6 address space for which you wish to disable rate limiting
LOCALNET_V6="fe80::/10"
#delete existing rules
tc qdisc del dev ${IF} root
@ -28,6 +30,12 @@ tc class add dev ${IF} parent 1:1 classid 1:11 htb rate ${LIMIT} ceil ${LIMIT} p
tc filter add dev ${IF} parent 1: protocol ip prio 1 handle 1 fw classid 1:10
tc filter add dev ${IF} parent 1: protocol ip prio 2 handle 2 fw classid 1:11
if [ ! -z "${LOCALNET_V6}" ] ; then
# v6 cannot have the same priority value as v4
tc filter add dev ${IF} parent 1: protocol ipv6 prio 3 handle 1 fw classid 1:10
tc filter add dev ${IF} parent 1: protocol ipv6 prio 4 handle 2 fw classid 1:11
fi
#delete any existing rules
#disable for now
#ret=0
@ -37,9 +45,15 @@ tc filter add dev ${IF} parent 1: protocol ip prio 2 handle 2 fw classid 1:11
#done
#limit outgoing traffic to and from port 9999. but not when dealing with a host on the local network
# (defined by $LOCALNET)
# --set-mark marks packages matching these criteria with the number "2"
# these packages are filtered by the tc filter with "handle 2"
# (defined by $LOCALNET_V4 and $LOCALNET_V6)
# --set-mark marks packages matching these criteria with the number "2" (v4)
# --set-mark marks packages matching these criteria with the number "4" (v6)
# these packets are filtered by the tc filter with "handle 2"
# this filter sends the packages into the 1:11 class, and this class is limited to ${LIMIT}
iptables -t mangle -A OUTPUT -p tcp -m tcp --dport 9999 ! -d ${LOCALNET} -j MARK --set-mark 0x2
iptables -t mangle -A OUTPUT -p tcp -m tcp --sport 9999 ! -d ${LOCALNET} -j MARK --set-mark 0x2
iptables -t mangle -A OUTPUT -p tcp -m tcp --dport 9999 ! -d ${LOCALNET_V4} -j MARK --set-mark 0x2
iptables -t mangle -A OUTPUT -p tcp -m tcp --sport 9999 ! -d ${LOCALNET_V4} -j MARK --set-mark 0x2
if [ ! -z "${LOCALNET_V6}" ] ; then
ip6tables -t mangle -A OUTPUT -p tcp -m tcp --dport 9999 ! -d ${LOCALNET_V6} -j MARK --set-mark 0x4
ip6tables -t mangle -A OUTPUT -p tcp -m tcp --sport 9999 ! -d ${LOCALNET_V6} -j MARK --set-mark 0x4
fi