ipw
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#!/bin/bash
# Copyright (C) 2013 Artyom A Anikeev <anikeev@ut.mephi.ru> 0xB5385841,
# Dmitry Yu Okunev <xai@mephi.ru> 0x8E30679C
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
eerror() {
echo "$@" >&2
}
newconfig_open() {
echo -n > "$NEWCONFIG_TMPPATH"
}
newconfig_write() {
LINE="$1"; shift;
[[ $NEWCONFIG -eq 0 ]] && return
echo "$LINE" >> "$NEWCONFIG_TMPPATH"
}
newconfig_commit() {
rm -f "$CONFIG_PATH"
mv "$NEWCONFIG_TMPPATH" "$CONFIG_PATH"
}
newconfig_push() {
BUFNUM="$1"; shift;
LINE="$1"; shift;
BUF[$BUFNUM]="${BUF[$BUFNUM]}
$LINE"
}
newconfig_pushpopall() {
BUFNUMTO="$1"; shift;
BUFNUMFROM="$1"; shift;
newconfig_push "$BUFNUMTO" "${BUF[$BUFNUMFROM]}"
newconfig_popall "$BUFNUMFROM"
}
newconfig_popall() {
BUFNUM="$1"; shift;
BUF[$BUFNUM]=""
}
newconfig_popallwrite() {
BUFNUM="$1"; shift;
newconfig_write "${BUF[$BUFNUM]}"
BUF[$BUFNUM]=""
}
parse_vlan_subvlan_bridge() {
VLAN_N_BRIDGE="$1"; shift
if [[ "${VLAN_N_BRIDGE:0:1}" = ":" ]]; then
VLAN=""
BRNAME="${VLAN_N_BRIDGE:1}"
else
# Splitting by ":"
WORDS=( ${VLAN_N_BRIDGE//[:]/ } )
# The second word defines interface name. If it's empty, "vlan$VLAN.$SUBVLAN" is used.
VLAN="${WORDS[0]}"
BRNAME="${WORDS[1]}"
# Splitting by "."
WORDS=( ${VLAN//[.]/ } )
# The second word defines subvlan (1q-in-1q) if it's used. It's empty if no subvlan is used.
VLAN="${WORDS[0]}"
SUBVLAN="${WORDS[1]}"
fi
# Checking if no "vlan(.subvlan)?" is set
if ! [[ "${VLAN_N_BRIDGE: -1}" = ":" ]]; then
# Setting default values
[[ "$SUBVLAN" = "" ]] && BRNAME="${BRNAME:-vlan${VLAN}}" || BRNAME="${BRNAME:-vlan${VLAN}.${SUBVLAN}}"
fi
return;
}
CONFIG_PATH="./ipw-configsample"
source "$CONFIG_PATH"
NEWCONFIG_TMPPATH="/tmp/.~ipw"
CMD="$1"; shift;
NEWCONFIG=0
case "$CMD" in
add1qif)
NEWCONFIG=1 # we need to update the config after the command
NEW_D1Q_IFACE="$1"; shift
NEW_SLAVE="$1"; shift
# checking for duplicated slaves or d1q_ifaces
D1Q_IFACE_USED=0
for D1Q_IFACE in ${D1Q_IFACES[@]}; do
if [[ "$D1Q_IFACE" = "$NEW_D1Q_IFACE" ]]; then
D1Q_IFACE_USED=1
fi
SLAVES_VARIABLE="${D1Q_IFACE}_SLAVES"
SLAVES_VARIABLE="${SLAVES_VARIABLE//[.]/_}[@]"
for SLAVE in "${!SLAVES_VARIABLE}"; do
if [[ "$SLAVE" = "$NEW_SLAVE" ]]; then
eerror "This interface have already been enslaved"
exit -1
fi
done
done
if [[ $D1Q_IFACE_USED -eq 0 ]]; then
D1Q_IFACES[ ${#D1Q_IFACES} ]="$NEW_D1Q_IFACE"
fi
SLAVES_VARIABLE="${NEW_D1Q_IFACE}_SLAVES"
SLAVES_VARIABLE="${SLAVES_VARIABLE//[.]/_}"
eval "${SLAVES_VARIABLE}[\${#${SLAVES_VARIABLE}}]=\"$NEW_SLAVE\""
;;
addbrif)
NEWCONFIG=1 # we need to update the config after the command
NEW_D1Q_IFACE="$1"; shift
NEW_VLAN_SUBVLAN="$1"; shift
NEW_BRIDGE="$1"; shift
[[ -z $NEW_BRIDGE ]] && NEW_VLAN_N_BRIDGE="${NEW_VLAN_SUBVLAN}" || NEW_VLAN_N_BRIDGE="${NEW_VLAN_SUBVLAN}:${NEW_BRIDGE}"
D1Q_IFACE_USED=0
for D1Q_IFACE in ${D1Q_IFACES[@]}; do
if [[ "$D1Q_IFACE" = "$NEW_D1Q_IFACE" ]]; then
D1Q_IFACE_USED=1
break;
fi
done
parse_vlan_subvlan_bridge "${NEW_VLAN_N_BRIDGE}"
NEW_VLAN=$VLAN
NEW_SUBVLAN=$SUBVLAN
if [[ $D1Q_IFACE_USED -eq 0 ]]; then
eerror "There's no such interface: $NEW_D1Q_IFACE"
exit -1
fi
VLAN_N_BRIDGE_VARIABLE="${NEW_D1Q_IFACE}_VLAN_N_BRIDGES"
VLAN_N_BRIDGE_VARIABLE="${VLAN_N_BRIDGE_VARIABLE//[.]/_}[@]"
for VLAN_N_BRIDGE in "${!VLAN_N_BRIDGE_VARIABLE}"; do
parse_vlan_subvlan_bridge "${VLAN_N_BRIDGE}"
if [[ "$VLAN" = "$NEW_VLAN" && "$SUBVLAN" = "$NEW_SUBVLAN" ]]; then
eerror "This vlan is alredy used"
exit -1
fi
done
VLAN_N_BRIDGE_VARIABLE="${D1Q_IFACE}_VLAN_N_BRIDGES"
VLAN_N_BRIDGE_VARIABLE="${VLAN_N_BRIDGE_VARIABLE//[.]/_}"
eval "${VLAN_N_BRIDGE_VARIABLE}[\${#${VLAN_N_BRIDGE_VARIABLE}}]=\"$NEW_VLAN_N_BRIDGE\""
#D1Q_IFACES[ ${#D1Q_IFACES}]
;;
addbrifstale)
NEWCONFIG=1 # we need to update the config after the command
BRNAME="$1"; shift
SLAVE="$1"; shift
# TODO: implement this
#bond0_SLAVES[ ${#bond0_SLAVES[@]} ]="eth2"
;;
fix)
#brctl addif bond0 eth2
;;
*)
;;
esac
newconfig_open
newconfig_write "#"
newconfig_write ""
newconfig_write "D1Q_IFACES=("
for D1Q_IFACE in ${D1Q_IFACES[@]}; do
newconfig_write " $D1Q_IFACE"
newconfig_push 128 "${D1Q_IFACE}_SLAVES=("
haveaslave=0
SLAVES_VARIABLE="${D1Q_IFACE}_SLAVES"
SLAVES_VARIABLE="${SLAVES_VARIABLE//[.]/_}[@]"
for SLAVE in "${!SLAVES_VARIABLE}"; do
newconfig_push 128 " $SLAVE";
haveaslave=1
done
newconfig_push 128 ")"
# If there're no slaves then don't write anything about them
[[ $haveaslave -ne 0 ]] && newconfig_pushpopall 1 128 || newconfig_popall 128
VLAN_N_BRIDGE_VARIABLE="${D1Q_IFACE}_VLAN_N_BRIDGES"
VLAN_N_BRIDGE_VARIABLE="${VLAN_N_BRIDGE_VARIABLE//[.]/_}[@]"
newconfig_push 1 "${D1Q_IFACE}_VLAN_N_BRIGES=("
for VLAN_N_BRIDGE in "${!VLAN_N_BRIDGE_VARIABLE}"; do
newconfig_push 1 " ${VLAN_N_BRIDGE}"
parse_vlan_subvlan_bridge "${VLAN_N_BRIDGE}"
# Checking if no "vlan(.subvlan)?" is set
if [[ "${BRNAME}" != "" ]]; then
# Getting commands for "ip"
IP_CMDS_VARIABLE="${BRNAME//[.]/_}_IP"
newconfig_push 128 "${IP_CMDS_VARIABLE}=("
IP_CMDS_VARIABLE="${IP_CMDS_VARIABLE}[@]"
hasanIP_CMD=0
for IP_CMD in "${!IP_CMDS_VARIABLE}"; do
newconfig_push 128 " \"$IP_CMD\""
echo ip $IP_CMD dev $BRNAME
hasanIP_CMD=1
done
newconfig_push 128 ")"
newconfig_push 128 ""
[[ $hasanIP_CMD -ne 0 ]] && newconfig_pushpopall 2 128 || newconfig_popall 128
fi
printf "br: %-10s vlan:%4s subvlan:%4s\n" "$BRNAME" "$VLAN" "$SUBVLAN"
done
newconfig_push 1 ")"
done
newconfig_write ")"
newconfig_popallwrite 1
newconfig_popallwrite 2
newconfig_popallwrite 3
echo ${D1Q_IFACES[@]}
#[[ $NEWCONFIG -ne 0 ]] && newconfig_commit
exit 0