#!/gns3/bin/busybox sh # # Copyright (C) 2016 GNS3 Technologies Inc. # # 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 . # # This script is injected into the container and launch before # the start command of the container # OLD_PATH="$PATH" PATH=/gns3/bin:/tmp/gns3/bin:/sbin # bootstrap busybox commands if [ ! -d /tmp/gns3/bin ]; then busybox mkdir -p /tmp/gns3/bin /gns3/bin/busybox --install -s /tmp/gns3/bin fi # Restore file permission and mount volumes echo "$GNS3_VOLUMES" | tr ":" "\n" | while read i do # ensure, that the mount directory exists mkdir -p "$i" # Copy original files if destination is empty (first start) if [ ! -f "/gns3volumes$i/.gns3_perms" ]; then cp -a "$i/." "/gns3volumes$i" touch "/gns3volumes$i/.gns3_perms" fi mount --bind "/gns3volumes$i" "$i" while IFS=: read PERMS OWNER GROUP FILE do [ -L "$FILE" ] || chmod "$PERMS" "$FILE" chown -h "${OWNER}:${GROUP}" "$FILE" done < "$i/.gns3_perms" done # /etc/hosts [ -s /etc/hosts ] || cat > /etc/hosts << __EOF__ 127.0.1.1 $HOSTNAME 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters __EOF__ # imitate docker's `ExtraHosts` behaviour sed -i '/GNS3_EXTRA_HOSTS_START/,/GNS3_EXTRA_HOSTS_END/d' /etc/hosts [ -n "$GNS3_EXTRA_HOSTS" ] && cat >> /etc/hosts << __EOF__ # GNS3_EXTRA_HOSTS_START $GNS3_EXTRA_HOSTS # GNS3_EXTRA_HOSTS_END __EOF__ # configure loopback interface ip link set dev lo up # Wait for all eth available while true do grep $GNS3_MAX_ETHERNET /proc/net/dev > /dev/null && break sleep 0.5 done # activate eth interfaces sed -n 's/^ *\(eth[0-9]*\):.*/\1/p' < /proc/net/dev | while read dev; do ip link set dev $dev up done # configure network interfaces ifup -a -f # continue normal docker startup PATH="$OLD_PATH" exec "$@"