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sqm-scripts: backport from trunk "Teach SQM hotplug tricks"

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Backport from trunk the commit that adds support for hotplug action.
5b61cfba07

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
This commit is contained in:
Hannu Nyman
2015-03-04 21:34:19 +02:00
parent bafecb73ad
commit 17b6911cde
4 changed files with 42 additions and 4 deletions
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30
net/sqm-scripts/files/usr/lib/sqm/run.sh Normal file → Executable file
View File

@@ -9,16 +9,37 @@
. /lib/functions.sh
STOP=$1
STOP=
ACTIVE_STATE_PREFIX="SQM_active_on_"
ACTIVE_STATE_FILE_DIR="/var/run/SQM"
mkdir -p ${ACTIVE_STATE_FILE_DIR}
PROTO_STATE_FILE_LIST=$( ls ${ACTIVE_STATE_FILE_DIR}/${ACTIVE_STATE_PREFIX}* 2> /dev/null )
case ${1} in
stop)
logger -t SQM -s "run.sh stop"
STOP=$1
;;
interface)
START_ON_IF=$2 # only process this interface
logger -t SQM -s "Re/starting sqm on interface ${START_ON_IF}"
# TODO if $2 is empty just bail...
if [ -z ${START_ON_IF} ] ;
then
logger -t SQM -s "Interface name missing, nothing to do, bailing out"
return 0
fi
# only try to restart the just hotplugged interface, so reduce the list of interfaces to stop to the specified one
PROTO_STATE_FILE_LIST=${ACTIVE_STATE_FILE_DIR}/${ACTIVE_STATE_PREFIX}${START_ON_IF}
;;
esac
# the current uci config file does not necessarily contain sections for all interfaces with active
# SQM instances, so use the ACTIVE_STATE_FILES to detect the interfaces on which to stop SQM.
# Currently the .qos scripts start with stopping any existing traffic shaping so this should not
# effectively change anything...
PROTO_STATE_FILE_LIST=$( ls ${ACTIVE_STATE_FILE_DIR}/${ACTIVE_STATE_PREFIX}* 2> /dev/null )
for STATE_FILE in ${PROTO_STATE_FILE_LIST} ; do
if [ -f ${STATE_FILE} ] ;
then
@@ -35,6 +56,11 @@ config_load sqm
run_simple_qos() {
local section="$1"
export IFACE=$(config_get "$section" interface)
# If called explicitly for one interface only , so ignore anything else
[ -n "${START_ON_IF}" -a "$START_ON_IF" != "$IFACE" ] && return
#logger -t SQM -s "marching on..."
ACTIVE_STATE_FILE_FQN="${ACTIVE_STATE_FILE_DIR}/${ACTIVE_STATE_PREFIX}${IFACE}" # this marks interfaces as active with SQM
[ -f "${ACTIVE_STATE_FILE_FQN}" ] && logger -t SQM -s "Uh, oh, ${ACTIVE_STATE_FILE_FQN} should already be stopped." # Not supposed to happen

3
net/sqm-scripts/files/usr/lib/sqm/simple.qos Normal file → Executable file
View File

@@ -37,6 +37,9 @@ ipt -t mangle -A QOS_MARK_${IFACE} -m tos --tos Minimize-Delay -j MARK --set-ma
# Turn it on. Preserve classification if already performed
#sm: is it correct to do this in $IFACE? Should ingress not be on $DEV? since HTB acts on $DEV?
# SQUASH also does not work on $DEV (that is the IFB will still see the incoming ToS bits whether we squash or not)
# SQUASH is still useful to protect internal machines...
if [ "$SQUASH_DSCP" = "1" ]
then
sqm_logger "Squashing differentiated services code points (DSCP) from ingress."