/etc/vz/dists/scripts/etcnet-add_ip.sh is in vzctl 4.9.4-5.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 | #!/bin/bash
# Copyright (C) 2006-2007 Dmitry V. Levin <ldv@altlinux.org>
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
#
#
# Adds IP address(es) in a container running a etcnet-based systems.
HOSTFILE=/etc/hosts
IFACE_DIR=/etc/net/ifaces
NETFILE=/etc/sysconfig/network
VENET_DEV=venet0
# Function to quote argument for sed regexp.
quote_sed_regexp()
{
local out="$*"
if [ -z "${out##*[\[\].^\$\\/]*}" ]; then
out="$(printf %s "$out" |sed 's/[].^$[\/]/\\&/g')" ||
return 1
fi
printf %s "$out"
}
create_venet_config()
{
local dir="$1"; shift
rm -rf "$dir" && mkdir -p "$dir" ||
error "Cannot create $dir" ${VZ_FS_NO_DISK_SPACE}
echo >"$dir/ipv4address" ||
error "Cannot create $dir/ipv4address" ${VZ_FS_NO_DISK_SPACE}
echo "default dev $dir" >"$dir/ipv4route" ||
error "Cannot create $dir/ipv4route" ${VZ_FS_NO_DISK_SPACE}
echo 'BOOTPROTO=static
ONBOOT=yes
TYPE=lo' >"$dir/options" ||
error "Cannot create $dir/options" ${VZ_FS_NO_DISK_SPACE}
}
destroy_venet_config()
{
local dir="$1"; shift
rm -rf "$dir" ||
error "Cannot destroy $dir" ${VZ_FS_NO_DISK_SPACE}
}
del_ipv6_conf()
{
local dir="$1"; shift
if [ -f "$dir/ipv6address" ]; then
rm -f "$dir/ipv6address" ||
error "Cannot remove $dir/ipv6address" ${VZ_FS_NO_DISK_SPACE}
fi
if [ -f "$dir/ipv6route" ]; then
rm -f "$dir/ipv6route" ||
error "Cannot remove $dir/ipv6route" ${VZ_FS_NO_DISK_SPACE}
fi
del_param ".tmp/$VENET_DEV/options" "CONFIG_IPV6=yes"
}
setup_network()
{
# Purge old venet0 interface settings
destroy_venet_config "$VENET_DEV"
# Set up venet0 main interface
[ $# -eq 0 ] || create_venet_config "$VENET_DEV"
# Set /etc/sysconfig/network
put_param "$NETFILE" NETWORKING yes
# Set up /etc/hosts if necessary
[ -s "$HOSTFILE" ] ||
echo '127.0.0.1 localhost.localdomain localhost' >"$HOSTFILE"
}
create_alias()
{
local ip="$1"; shift
local mask="$1"; shift
local ifnum="$1"; shift
echo "$ip/$mask label $VENET_DEV:$ifnum" >>".tmp/$VENET_DEV/ipv4address" ||
error "Cannot create .tmp/$VENET_DEV/ipv4address" ${VZ_FS_NO_DISK_SPACE}
}
add_ip6() {
local ip="$1"; shift
local mask="$1"; shift
[ "${IPV6}" != "yes" ] && return 0
if ! grep -qw "$ip" ".tmp/$VENET_DEV/ipv6address" 2>/dev/null; then
echo "2000::/3 dev $VENET_DEV" > ".tmp/$VENET_DEV/ipv6route" ||
error "Cannot create .tmp/$VENET_DEV/ipv6route" ${VZ_FS_NO_DISK_SPACE}
echo "$ip/$mask" >> ".tmp/$VENET_DEV/ipv6address" ||
error "Cannot create .tmp/$VENET_DEV/ipv6address" ${VZ_FS_NO_DISK_SPACE}
put_param ".tmp/$VENET_DEV/options" "CONFIG_IPV6" "yes"
fi
}
backup_configs()
{
rm -rf .tmp && mkdir -p .tmp ||
error "Cannot create $VENET_DEV" ${VZ_FS_NO_DISK_SPACE}
[ -d "$VENET_DEV" ] ||
create_venet_config "$VENET_DEV"
cp -a "$VENET_DEV" .tmp/ ||
error "Unable to backup interface config files" ${VZ_FS_NO_DISK_SPACE}
}
move_configs()
{
rm -rf "$VENET_DEV.orig" &&
mv "$VENET_DEV" "$VENET_DEV.orig" &&
mv ".tmp/$VENET_DEV" "$VENET_DEV" &&
rm -rf "$VENET_DEV.orig" .tmp
}
find_unused_alias()
{
local i="$1"; shift
while grep -qs "label $VENET_DEV:$i\$" ".tmp/$VENET_DEV/ipv4address"; do
i="$(($i+1))"
done
echo "$i"
}
add_ip()
{
set -- ${IP_ADDR}
if [ "$VE_STATE" = 'starting' ]; then
setup_network "$@"
fi
if [ $# -gt 0 ]; then
backup_configs
local i=0 ipm
for ipm; do
ip_conv $ipm
if [ -z "$_IPV6ADDR" ]; then
i="$(find_unused_alias "$(($i+1))")"
create_alias "$_IP" "$_MASK" "$i"
else
if [ "$IPDELALL" = "yes" ]; then
del_ipv6_conf "$VENET_DEV"
fi
add_ip6 "${_IP}" "${_MASK}"
fi
done
move_configs
fi
if [ "$VE_STATE" = 'running' ]; then
# synchronyze config files & interfaces
ifdown "$VENET_DEV"
if [ $# -gt 0 ]; then
ifup "$VENET_DEV"
else
destroy_venet_config "$VENET_DEV"
fi
fi
if [ $# -gt 0 -a -d /etc/hooks/add_ip.d ] &&
type run-parts >/dev/null 2>&1; then
run-parts /etc/hooks/add_ip.d "$@"
fi
}
[ -d "$IFACE_DIR" ] &&
cd "$IFACE_DIR" &&
add_ip
exit 0
|