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net/mwan3: add mwan3_init function 

Move all shell commands which are executed during /lib/mwan3/mwan3.sh
sourceing into a seperate init function which must be called at first.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
This commit is contained in:
Florian Eckert 2018-02-02 14:56:18 +01:00
parent 7cf9d9ec20
commit 8fa2101ea3
3 changed files with 36 additions and 19 deletions
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1
net/mwan3/files/etc/hotplug.d/iface/15-mwan3
View File

@ -21,6 +21,7 @@ config_get initial_state $INTERFACE initial_state "online"
[ "$enabled" == "1" ] || exit 0
mwan3_lock
mwan3_init
mwan3_set_connected_iptables
mwan3_unlock

53
net/mwan3/files/lib/mwan3/mwan3.sh
View File

@ -11,17 +11,14 @@ CONNTRACK_FILE="/proc/net/nf_conntrack"
MWAN3_STATUS_DIR="/var/run/mwan3"
MWAN3TRACK_STATUS_DIR="/var/run/mwan3track"
DEFAULT_LOWEST_METRIC=256
MMX_MASK=""
MMX_DEFAULT=""
MMX_BLACKHOLE=""
MM_BLACKHOLE=""
MMX_UNREACHABLE=""
MM_UNREACHABLE=""
[ -d $MWAN3_STATUS_DIR ] || mkdir -p $MWAN3_STATUS_DIR/iface_state
# mwan3's MARKing mask (at least 3 bits should be set)
if [ -e "${MWAN3_STATUS_DIR}/mmx_mask" ]; then
MMX_MASK=$(cat "${MWAN3_STATUS_DIR}/mmx_mask")
else
config_load mwan3
config_get MMX_MASK globals mmx_mask '0xff00'
echo "$MMX_MASK" > "${MWAN3_STATUS_DIR}/mmx_mask"
$LOG notice "Using firewall mask ${MMX_MASK}"
fi
# counts how many bits are set to 1
# n&(n-1) clears the lowest bit set to 1
@ -58,16 +55,34 @@ mwan3_id2mask()
printf "0x%x" $result
}
# mark mask constants
MM_BIT_CNT=$(mwan3_count_one_bits MMX_MASK)
MM_DEFAULT=$(((1<<MM_BIT_CNT)-1))
MM_BLACKHOLE=$(($MM_DEFAULT-2))
MM_UNREACHABLE=$(($MM_DEFAULT-1))
mwan3_init()
{
local bitcnt
local mmdefault mmblackhole mmunreachable
# MMX_DEFAULT should equal MMX_MASK
MMX_DEFAULT=$(mwan3_id2mask MM_DEFAULT MMX_MASK)
MMX_BLACKHOLE=$(mwan3_id2mask MM_BLACKHOLE MMX_MASK)
MMX_UNREACHABLE=$(mwan3_id2mask MM_UNREACHABLE MMX_MASK)
[ -d $MWAN3_STATUS_DIR ] || mkdir -p $MWAN3_STATUS_DIR/iface_state
# mwan3's MARKing mask (at least 3 bits should be set)
if [ -e "${MWAN3_STATUS_DIR}/mmx_mask" ]; then
MMX_MASK=$(cat "${MWAN3_STATUS_DIR}/mmx_mask")
else
config_load mwan3
config_get MMX_MASK globals mmx_mask '0xff00'
echo "$MMX_MASK" > "${MWAN3_STATUS_DIR}/mmx_mask"
$LOG notice "Using firewall mask ${MMX_MASK}"
fi
# mark mask constants
bitcnt=$(mwan3_count_one_bits MMX_MASK)
mmdefault=$(((1<<bitcnt)-1))
MM_BLACKHOLE=$(($mmdefault-2))
MM_UNREACHABLE=$(($mmdefault-1))
# MMX_DEFAULT should equal MMX_MASK
MMX_DEFAULT=$(mwan3_id2mask mmdefault MMX_MASK)
MMX_BLACKHOLE=$(mwan3_id2mask MM_BLACKHOLE MMX_MASK)
MMX_UNREACHABLE=$(mwan3_id2mask MM_UNREACHABLE MMX_MASK)
}
mwan3_lock() {
lock /var/run/mwan3.lock

1
net/mwan3/files/usr/sbin/mwan3
View File

@ -187,6 +187,7 @@ restart() {
case "$1" in
ifup|ifdown|interfaces|policies|connected|rules|status|start|stop|restart)
mwan3_init
$*
;;
*)