| 7 |
# Christian Fischer <spaetzle@freewrt.org> |
# Christian Fischer <spaetzle@freewrt.org> |
| 8 |
# |
# |
| 9 |
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| 10 |
built_in() { |
main_ifupdown() { |
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local what=$1 |
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local alias=$(alias $what) |
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unalias $what |
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alias $(echo $alias|sed 's/'\''//g') |
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shift |
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$what $@ |
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} |
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config() { |
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[ x"$1" != x"0" ] |
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} |
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__ifupdown() { |
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| 11 |
local environ=$(cat $ENVFILE) |
local environ=$(cat $ENVFILE) |
| 12 |
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| 13 |
IFUPDOWN_ENV=$(echo -n $IFUPDOWN_ENV|sed 's/\(MDENT=\)[^ ]*[[:space:]]*//g';\ |
IFUPDOWN_ENV=$(echo -n $IFUPDOWN_ENV|sed 's/\(MDENT=\)[^ ]*[[:space:]]*//g';\ |
| 17 |
busybox "$@" |
busybox "$@" |
| 18 |
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| 19 |
retval=$? |
retval=$? |
| 20 |
echo $environ > $ENVFILE |
grep -q RT_BB_NOEXEC=1 $ENVFILE && retval=0 |
| 21 |
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echo $environ >$ENVFILE |
| 22 |
return $retval |
return $retval |
| 23 |
} |
} |
| 24 |
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| 25 |
__exit() { |
main_exit() { |
| 26 |
[ x"$1" != x"0" ] && echo "RT_ERR=1" >> $ENVFILE |
[[ $1 != 0 ]] && echo "RT_ERR=1" >>$ENVFILE |
| 27 |
exit $1 |
exit $1 |
| 28 |
} |
} |
| 29 |
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iface_exists() { |
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grep -q "${1:-$IFACE}:" /proc/net/dev |
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} |
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is_up() { |
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local iface=${1:-$IFACE} |
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if iface_exists $iface |
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then |
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ip a|grep ${iface}:[[:space:]]|grep -q UP && return |
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### ifupdown netlink bug workaround ### |
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# suppress "ip: RTNETLINK answers: File exists" message in the case of |
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# iface is down but an ip address is assigned |
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ip a|grep ${iface}$|grep -q inet && ip addr flush dev $iface >/dev/null 2>&1 |
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### end workaround ### |
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fi |
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return 1 |
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} |
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| 30 |
main_env_update() { |
main_env_update() { |
| 31 |
local t_mdent lastmatch= |
local t_mdent lastmatch= |
| 32 |
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|
| 34 |
SUBMODE=$(echo ${0%/*} |sed '{ s/\(.*\/\)*//; s/\.d$//}') |
SUBMODE=$(echo ${0%/*} |sed '{ s/\(.*\/\)*//; s/\.d$//}') |
| 35 |
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| 36 |
# create env file |
# create env file |
| 37 |
if ! [ -f "$ENVFILE" ] |
if ! [[ -f $ENVFILE ]]; then |
| 38 |
then |
[[ -d ${ENVFILE%/*} ]] || mkdir -p ${ENVFILE%/*} |
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[ -d ${ENVFILE%/*} ] || mkdir -p ${ENVFILE%/*} |
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| 39 |
echo "MDENT=0" >> $ENVFILE |
echo "MDENT=0" >> $ENVFILE |
| 40 |
echo "LASTLOG=0" >> $ENVFILE |
echo "LASTLOG=0" >> $ENVFILE |
| 41 |
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| 42 |
is_up && IFACE_STATE="up" || IFACE_STATE="down" |
is_up && IFACE_STATE=up || IFACE_STATE=down |
| 43 |
echo "IFACE_STATE=$IFACE_STATE" >> $ENVFILE |
echo "IFACE_STATE=$IFACE_STATE" >>$ENVFILE |
| 44 |
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| 45 |
if [ x"$IFACE" != x"lo" ] |
if [[ $IFACE != lo ]]; then |
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then |
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| 46 |
# search for existing lib files end evaluate iface type by using the appropriate |
# search for existing lib files end evaluate iface type by using the appropriate |
| 47 |
# function from lib file |
# function from lib file |
| 48 |
for lib in ${LIBDIR}/iftypes/* |
for lib in ${LIBDIR}/iftypes/*; do |
| 49 |
do |
[[ -f $lib ]] && (. $lib; iface_type 2>&-) || continue |
| 50 |
[ -f $lib ] && (. $lib; iface_type 2>&-) || continue |
if [[ -n $lastmatch ]]; then |
| 51 |
if [ -n "$lastmatch" ] |
if [[ ${lib##*/} = ${lastmatch##*/} ]]; then |
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then |
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if [ ${lib##*/} = ${lastmatch##*/} ] |
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then |
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| 52 |
mprint -s "Warning: $lib overlays $lastmatch" |
mprint -s "Warning: $lib overlays $lastmatch" |
| 53 |
else |
else |
| 54 |
mprint -s "Error: iface type $lib overlays $lastmatch" |
mprint -s "Error: iface type $lib overlays $lastmatch" |
| 59 |
fi |
fi |
| 60 |
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|
| 61 |
# if iface type isn't evaluated type "iface" is default |
# if iface type isn't evaluated type "iface" is default |
| 62 |
[ -n "$lastmatch" ] && IFACE_TYPE=${lastmatch##*/} || IFACE_TYPE="iface" |
[[ -n $lastmatch ]] && IFACE_TYPE=${lastmatch##*/} || IFACE_TYPE=iface |
| 63 |
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| 64 |
# update env |
# update env |
| 65 |
echo "IFACE_TYPE=${IFACE_TYPE}" >> $ENVFILE |
echo "IFACE_TYPE=$IFACE_TYPE" >>$ENVFILE |
| 66 |
fi |
fi |
| 67 |
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| 68 |
. $ENVFILE |
. $ENVFILE |
| 73 |
eval $var |
eval $var |
| 74 |
done |
done |
| 75 |
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| 76 |
[ $t_mdent -gt $MDENT ] && MDENT=$t_mdent |
[[ $t_mdent -gt $MDENT ]] && MDENT=$t_mdent |
| 77 |
main_pos_update |
main_pos_update |
| 78 |
} |
} |
| 79 |
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| 80 |
main_pos_update() { |
main_pos_update() { |
| 81 |
[ x"$MDENT" = x"0" ] && STARTCOL= || STARTCOL="[$(expr ${MDENT:-0} \* ${TAB})C" |
[[ $MDENT = 0 ]] && STARTCOL= || \ |
| 82 |
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STARTCOL="[$(( ${MDENT:-0} * $TAB))C" |
| 83 |
sed 's/MDENT=[0-9]*/'MDENT=$MDENT'/' -i $ENVFILE |
sed 's/MDENT=[0-9]*/'MDENT=$MDENT'/' -i $ENVFILE |
| 84 |
} |
} |
| 85 |
|
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| 86 |
main_preup() { |
### global helper functions ### |
|
config $RT_PREUP_PRINTING_OFF || mstart |
|
| 87 |
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| 88 |
if ! config $RT_PREUP_IFUP_CHECK_OFF && is_up |
config() { |
| 89 |
then |
[[ $1 != 0 ]] |
| 90 |
if ! config $RT_PREUP_PRINTING_OFF |
} |
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then |
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mup |
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mstate 1 |
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minfo "Interface already up" |
|
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fi |
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exit 1 |
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fi |
|
| 91 |
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| 92 |
if_preup 2>&- |
iface_exists() { |
| 93 |
retval=$? |
grep -q "${1:-$IFACE}:" /proc/net/dev |
| 94 |
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} |
| 95 |
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| 96 |
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phys_exist() { |
| 97 |
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config $IFACE_LOGICAL && return |
| 98 |
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iface_exists && return |
| 99 |
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merr "No such device" |
| 100 |
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return 1 |
| 101 |
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} |
| 102 |
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| 103 |
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is_up() { |
| 104 |
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local iface=${1:-$IFACE} |
| 105 |
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| 106 |
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iface_exists $iface || return 1 |
| 107 |
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ip a|grep ${iface}:[[:space:]]|grep -q UP && return |
| 108 |
|
|
| 109 |
|
### ifupdown netlink bug workaround ### |
| 110 |
|
# suppress "ip: RTNETLINK answers: File exists" message in the case of |
| 111 |
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# iface is down but an ip address is assigned |
| 112 |
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ip a|grep ${iface}$|grep -q inet && ip addr flush dev $iface >/dev/null 2>&1 |
| 113 |
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### end workaround ### |
| 114 |
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| 115 |
[ x"$retval" != x"0" -a x"$retval" != x"127" ] && { |
return 1 |
| 116 |
fail_preup 2>&- || exit 1 |
} |
|
} |
|
| 117 |
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| 118 |
config $RT_PREUP_PRINTING_OFF && return |
### functions used by main up/down functions ### |
| 119 |
|
### DON'T remove empty ones ### |
| 120 |
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| 121 |
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main_exec_hookscripts() { |
| 122 |
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for hook in ${LIBDIR}/${1}/${2}; do |
| 123 |
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[[ -f $hook ]] || continue |
| 124 |
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. $hook |
| 125 |
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eval "${hook##*/}_$3" || [[ $? = 127 ]] || exit |
| 126 |
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done |
| 127 |
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} |
| 128 |
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| 129 |
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main_bb_methods_override() { |
| 130 |
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[[ -r ${LIBDIR}/methods/$METHOD ]] || return |
| 131 |
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. ${LIBDIR}/methods/$METHOD |
| 132 |
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whence ${METHOD}_$1 2>&- 1>&- || return |
| 133 |
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| 134 |
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# fake busybox ifupdown.c up or down code |
| 135 |
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case $1 in |
| 136 |
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up) |
| 137 |
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eval $IF_PRE_UP |
| 138 |
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eval ${METHOD}_$1 || exit |
| 139 |
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eval $IF_UP |
| 140 |
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# call up function from here because we leave |
| 141 |
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# run-parts after returning |
| 142 |
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main_up |
| 143 |
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;; |
| 144 |
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down) |
| 145 |
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eval $IF_DOWN |
| 146 |
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eval ${METHOD}_$1 || exit |
| 147 |
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eval $IF_POST_DOWN |
| 148 |
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main_postdown |
| 149 |
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;; |
| 150 |
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esac |
| 151 |
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| 152 |
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RT_BB_NOEXEC=1 |
| 153 |
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} |
| 154 |
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| 155 |
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main_exec_pcode() { |
| 156 |
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[[ -d /tmp/ifupdown/pcode/$IFACE ]] || return |
| 157 |
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for dir in /tmp/ifupdown/pcode/${IFACE}/*; do |
| 158 |
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[[ -f ${dir}/$1 ]] || continue |
| 159 |
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. ${dir}/$1 |
| 160 |
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done |
| 161 |
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} |
| 162 |
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| 163 |
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prereq_preup() { |
| 164 |
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main_prereq_preup |
| 165 |
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} |
| 166 |
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| 167 |
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main_prereq_preup() { |
| 168 |
|
# workaround for the failsafe |
| 169 |
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# ip link set down dev eth0 |
| 170 |
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# pingpong problem |
| 171 |
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[[ -f /tmp/.booting ]] && return |
| 172 |
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| 173 |
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is_up || return 0 |
| 174 |
mup |
mup |
| 175 |
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mstate 1 |
| 176 |
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minfo "Interface already up" |
| 177 |
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exit 1 |
| 178 |
} |
} |
| 179 |
|
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| 180 |
main_up() { |
prereq_up() { |
| 181 |
[ x"$METHOD" = x"manual" ] && ip link set up dev $IFACE |
main_prereq_up |
| 182 |
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} |
| 183 |
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| 184 |
if ! config $RT_UP_IFUP_CHECK_OFF |
main_prereq_up() { |
| 185 |
then |
is_up |
| 186 |
is_up |
mstate $? || exit |
| 187 |
retval=$? |
} |
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config $RT_UP_PRINTING_OFF || mstate $retval |
|
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[ x"$retval" != x"0" ] && exit 1 |
|
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fi |
|
| 188 |
|
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| 189 |
if_up 2>&- |
prereq_down() { |
| 190 |
retval=$? |
: |
| 191 |
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} |
| 192 |
|
|
| 193 |
[ x"$retval" != x"0" -a x"$retval" != x"127" ] && { |
prereq_postdown() { |
| 194 |
fail_up 2>&- || exit 1 |
main_prereq_postdown |
|
} |
|
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if [ -d /tmp/ifupdown/pcode/${IFACE} ] |
|
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then |
|
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for dir in /tmp/ifupdown/pcode/${IFACE}/* |
|
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do |
|
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[ -f ${dir}/postup ] || continue |
|
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. ${dir}/postup |
|
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done |
|
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fi |
|
| 195 |
} |
} |
| 196 |
|
|
| 197 |
main_down() { |
main_prereq_postdown() { |
| 198 |
config $RT_DOWN_PRINTING_OFF || mstop |
is_up |
| 199 |
|
mstate $((!$?)) || exit |
| 200 |
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[[ $IFACE_STATE = down ]] && minfo "Interface already down" |
| 201 |
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return 0 |
| 202 |
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} |
| 203 |
|
|
| 204 |
if [ -d /tmp/ifupdown/pcode/${IFACE} ] |
if_preup() { |
| 205 |
then |
: |
| 206 |
for dir in /tmp/ifupdown/pcode/${IFACE}/* |
} |
|
do |
|
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[ -f ${dir}/predown ] || continue |
|
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. ${dir}/predown |
|
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done |
|
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fi |
|
| 207 |
|
|
| 208 |
if_down 2>&- |
if_up() { |
| 209 |
retval=$? |
: |
| 210 |
|
} |
| 211 |
|
|
| 212 |
[ x"$retval" != x"0" -a x"$retval" != x"127" ] && { |
if_down() { |
| 213 |
fail_down 2>&- || exit 1 |
: |
| 214 |
} |
} |
| 215 |
|
|
| 216 |
config $RT_DOWN_PRINTING_OFF && return |
if_postdown() { |
| 217 |
mdown |
: |
| 218 |
} |
} |
| 219 |
|
|
| 220 |
main_postdown() { |
### main up/down functions ### |
|
[ x"$METHOD" = x"manual" ] && { |
|
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ip addr flush dev $IFACE |
|
|
ip link set down dev $IFACE |
|
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} |
|
|
|
|
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if ! config $RT_POSTDOWN_IFDOWN_CHECK_OFF |
|
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then |
|
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if [ $IFACE_STATE = "down" ] |
|
|
then |
|
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if ! config $RT_POSTDOWN_PRINTING_OFF |
|
|
then |
|
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mdown |
|
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mstate 1 |
|
|
minfo "Interface already down" |
|
|
fi |
|
|
else |
|
|
is_up && retval=1 || retval=0 |
|
|
config $RT_POSTDOWN_PRINTING_OFF || mstate $retval |
|
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[ "$retval" != "0" ] && exit 1 |
|
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fi |
|
|
fi |
|
| 221 |
|
|
| 222 |
if_postdown 2>&- |
main_preup() { |
| 223 |
retval=$? |
# print start message |
| 224 |
|
mstart |
| 225 |
|
|
| 226 |
[ x"$retval" != x"0" -a x"$retval" != x"127" ] && { |
# break if device is physical and not exist |
| 227 |
fail_postdown 2>&- || exit 1 |
phys_exist || exit |
|
} |
|
| 228 |
|
|
| 229 |
# pcode cleanup |
# check iface state and print state message |
| 230 |
rm -rf /tmp/ifupdown/pcode/*/$IFACE 2>&- 1>&- |
# break if iface is already up |
| 231 |
|
prereq_preup || exit |
| 232 |
|
|
| 233 |
|
# execute "pre busybox up" function |
| 234 |
|
# sourced from appropriate iftype script |
| 235 |
|
if_preup || fail_preup || exit |
| 236 |
|
|
| 237 |
|
# print "going up" message |
| 238 |
|
mup |
| 239 |
|
|
| 240 |
|
# execute plugins |
| 241 |
|
main_exec_hookscripts plugins '*' preup |
| 242 |
|
|
| 243 |
|
# execute method preup function if present |
| 244 |
|
main_exec_hookscripts methods $METHOD preup |
| 245 |
|
|
| 246 |
|
# override busybox ifupdown.c method if function present |
| 247 |
|
main_bb_methods_override up |
| 248 |
|
|
| 249 |
|
# bypass execution of further busybox ifupdown.c code |
| 250 |
|
config $RT_BB_NOEXEC || return 0 |
| 251 |
|
echo RT_BB_NOEXEC=1 >>$ENVFILE |
| 252 |
|
builtin exit 1 |
| 253 |
} |
} |
| 254 |
|
|
| 255 |
main_exec_dirhooks() { |
main_up() { |
| 256 |
for hook in ${LIBDIR}/${1}/${2} |
# execute method postup function if present |
| 257 |
do |
main_exec_hookscripts methods $METHOD postup |
| 258 |
[ -f $hook ] || continue |
|
| 259 |
. $hook |
# execute plugins |
| 260 |
eval $3 2>&- |
main_exec_hookscripts plugins '*' up |
| 261 |
retval=$? |
|
| 262 |
[ x"$retval" != x"0" -a x"$retval" != x"127" ] && exit 1 |
# check iface state and print state message |
| 263 |
return |
# break if iface isn't up |
| 264 |
done |
prereq_up || exit |
| 265 |
|
|
| 266 |
|
# execute "post busybox up" function |
| 267 |
|
# sourced from appropriate iftype script |
| 268 |
|
if_up || fail_up || exit |
| 269 |
|
|
| 270 |
|
# execute postcode if present |
| 271 |
|
main_exec_pcode postup |
| 272 |
} |
} |
| 273 |
|
|
| 274 |
main_exec_plugins() { |
main_down() { |
| 275 |
for plugin in ${LIBDIR}/plugins/*; do |
# print stop message |
| 276 |
[ -f $plugin ] || continue |
mstop |
| 277 |
. $plugin |
|
| 278 |
eval "${plugin##*/}_${1}" 2>&- |
# break if device is physical and not exist |
| 279 |
retval=$? |
phys_exist || exit |
| 280 |
[ x"$retval" != x"0" -a x"$retval" != x"127" ] && exit 1 |
|
| 281 |
done |
# nothing predefined |
| 282 |
|
prereq_down || exit |
| 283 |
|
|
| 284 |
|
# execute postcode if present |
| 285 |
|
main_exec_pcode predown |
| 286 |
|
|
| 287 |
|
# execute "pre busybox down" function |
| 288 |
|
# sourced from appropriate iftype script |
| 289 |
|
if_down || fail_down || exit |
| 290 |
|
|
| 291 |
|
# print "going down" message |
| 292 |
|
mdown |
| 293 |
|
|
| 294 |
|
# execute plugins |
| 295 |
|
main_exec_hookscripts plugins '*' down |
| 296 |
|
|
| 297 |
|
# execute method predown function if present |
| 298 |
|
main_exec_hookscripts methods $METHOD predown |
| 299 |
|
|
| 300 |
|
# override busybox ifupdown.c method if userspace function present |
| 301 |
|
main_bb_methods_override down |
| 302 |
|
|
| 303 |
|
# bypass execution of further busybox ifupdown.c code |
| 304 |
|
config $RT_BB_NOEXEC || return 0 |
| 305 |
|
echo RT_BB_NOEXEC=1 >>$ENVFILE |
| 306 |
|
builtin exit 1 |
| 307 |
} |
} |
| 308 |
|
|
| 309 |
main_exec_inlinehooks() { |
main_postdown() { |
| 310 |
case $SUBMODE in |
# execute method postdown function if present |
| 311 |
if-pre-up) |
main_exec_hookscripts methods $METHOD postdown |
| 312 |
[ -n "$IF_PRE_UP" ] && eval $IF_PRE_UP |
|
| 313 |
;; |
# execute plugins |
| 314 |
if-up) |
main_exec_hookscripts plugins '*' postdown |
| 315 |
[ -n "$IF_UP" ] && eval $IF_UP |
|
| 316 |
;; |
# check iface state and print state message |
| 317 |
if-down) |
# break if iface isn't down |
| 318 |
[ -n "$IF_DOWN" ] && eval $IF_DOWN |
prereq_postdown || exit |
| 319 |
;; |
|
| 320 |
if-post-down) |
# execute "post busybox down" function |
| 321 |
[ -n "$IF_POST_DOWN" ] && eval $IF_POST_DOWN |
# sourced from appropriate iftype script |
| 322 |
;; |
if_postdown || fail_postdown || exit |
| 323 |
esac |
|
| 324 |
|
# pcode cleanup |
| 325 |
|
rm -rf /tmp/ifupdown/pcode/*/$IFACE 2>&- 1>&- |
| 326 |
} |
} |
| 327 |
|
|
| 328 |
### main entry point ### |
### main entry point ### |
| 336 |
|
|
| 337 |
config $FWIFUPDOWN_DEBUG && set -x |
config $FWIFUPDOWN_DEBUG && set -x |
| 338 |
|
|
|
RT_PREUP_PRINTING_OFF=0 |
|
|
RT_UP_PRINTING_OFF=0 |
|
|
RT_DOWN_PRINTING_OFF=0 |
|
|
RT_POSTDOWN_PRINTING_OFF=0 |
|
|
RT_PREUP_IFUP_CHECK_OFF=0 |
|
|
RT_UP_IFUP_CHECK_OFF=0 |
|
|
RT_POSTDOWN_IFDOWN_CHECK_OFF=0 |
|
| 339 |
RT_BB_NOEXEC=0 |
RT_BB_NOEXEC=0 |
| 340 |
RT_ERR=0 |
RT_ERR=0 |
| 341 |
readonly ENVFILE="/tmp/ifupdown/env" |
readonly ENVFILE="/tmp/ifupdown/env" |
| 342 |
readonly LIBDIR="/etc/network" |
readonly LIBDIR="/etc/network" |
| 343 |
IFACE_TYPE="none" |
IFACE_TYPE="none" |
| 344 |
|
|
| 345 |
alias exit="__exit" |
alias exit="main_exit" |
| 346 |
alias ifup="__ifupdown ifup" |
alias ifup="main_ifupdown ifup" |
| 347 |
alias ifdown="__ifupdown ifdown" |
alias ifdown="main_ifupdown ifdown" |
|
[ -z "$KSH_VERSION" ] || alias which='whence -p' |
|
| 348 |
|
|
| 349 |
if ! [ -f /etc/network/mfunctions.sh ] |
if [[ ! -f /etc/network/mfunctions.sh ]]; then |
|
then |
|
| 350 |
logger -t ifupdown "/etc/network/mfunctions.sh not found" |
logger -t ifupdown "/etc/network/mfunctions.sh not found" |
| 351 |
exit 1 |
exit 1 |
| 352 |
fi |
fi |
| 354 |
|
|
| 355 |
main_env_update |
main_env_update |
| 356 |
|
|
| 357 |
config $RT_ERR && built_in exit 1 |
config $RT_ERR && builtin exit 1 |
| 358 |
|
|
| 359 |
if [ x"$IFACE_TYPE" != x"iface" ] |
if [[ $IFACE_TYPE != iface ]]; then |
| 360 |
then |
if [[ -f ${LIBDIR}/iftypes/$IFACE_TYPE ]]; then |
|
if [ -f "${LIBDIR}/iftypes/${IFACE_TYPE}" ] |
|
|
then |
|
| 361 |
. ${LIBDIR}/iftypes/$IFACE_TYPE |
. ${LIBDIR}/iftypes/$IFACE_TYPE |
| 362 |
else |
else |
| 363 |
mprint -s "Error: libfile $IFACE_TYPE not found" |
mprint -s "Error: libfile $IFACE_TYPE not found" |
| 365 |
fi |
fi |
| 366 |
|
|
| 367 |
case $SUBMODE in |
case $SUBMODE in |
| 368 |
if-pre-up) |
if-pre-up) |
| 369 |
main_preup |
main_preup |
|
main_exec_dirhooks methods $METHOD method_preup |
|
|
main_exec_plugins preup |
|
|
|
|
|
# bypass execution of further busybox ifupdown.c code |
|
|
config $RT_BB_NOEXEC && built_in exit 1 |
|
| 370 |
;; |
;; |
| 371 |
if-up) |
if-up) |
| 372 |
main_exec_plugins up |
main_up |
|
main_exec_dirhooks methods $METHOD method_up |
|
|
main_up |
|
| 373 |
;; |
;; |
| 374 |
if-down) |
if-down) |
| 375 |
main_down |
main_down |
|
main_exec_dirhooks methods $METHOD method_down |
|
|
main_exec_plugins down |
|
|
|
|
|
# bypass execution of further busybox ifupdown.c code |
|
|
config $RT_BB_NOEXEC && built_in exit 1 |
|
| 376 |
;; |
;; |
| 377 |
if-post-down) |
if-post-down) |
| 378 |
main_exec_plugins postdown |
main_postdown |
|
main_exec_dirhooks methods $METHOD method_postdown |
|
|
main_postdown |
|
| 379 |
;; |
;; |
| 380 |
esac |
esac |
| 381 |
|
|