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
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
#!/sbin/runscript
# Copyright 2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# To use this, symlink a target kvm instance to this script.
# Literally, ln -s qemu /etc/init.d/<vm-type>.<vmname>
# then have a config named /etc/conf.d/<vm-type>.<vmname>
#
# Allowed vm-types are currently qemu and kvm.
VMNAME=${SVCNAME#*.}
VMTYPE=${SVCNAME%.*}
VM_BINARY=
PIDFILE=/var/run/vm/${SVCNAME}.pid
MONITOR=/var/run/vm/${SVCNAME}.monitor
QTAP_FILE=/var/run/vm/${SVCNAME}.qtap
ENABLE_SDL=
discern_vm_binary() {
case "$VMTYPE" in
kvm)
VM_BINARY=`type -p qemu-kvm`
[ -z "$VM_BINARY" ] && VM_BINARY=`type -p kvm`
;;
qemu)
VM_BINARY=`type -p qemu`
;;
*)
eerror "Failed to discern the binary for $VMTYPE"
;;
esac
return 0
}
discern_foreground() {
if [ -n "$VNC" ]; then
ewarn "VNC option is going away; set FOREGROUND=vnc${VNC} instead"
FOREGROUND="vnc=${VNC}"
fi
case "${FOREGROUND:-none}" in
vnc*)
VNC=${VNC#*=}
if [ -z "$VNC" ]; then
eerror "FOREGROUND vnc is incorrectly set; must specify an address (:1 for example)"
return 1
fi
;;
sdl*)
ENABLE_SDL=${FOREGROUND#*=}
if [ -z "${ENABLE_SDL}" ]; then
eerror "FOREGROUND sdl is incorrectly set; must specify a DISPLAY address"
return 1
fi
;;
none)
;;
*)
eerror "Unknown FOREGROUND setting: $FOREGROUND"
return 1
;;
esac
return 0
}
DROP_USER=${DROP_USER:-nobody}
MEMORY=${MEMORY:-512M}
TIMEOUT=${TIMEOUT:-300}
SMP=${SMP:-1}
export KVM_USER=${KVM_USER:-"root"}
extra_commands="reboot"
depend() {
if [ "$VMNAME" = "$SVCNAME" ]; then
return 0
fi
sanity_check || return 1
case "$NIC_TYPE" in
br)
need ${NIC_NET_DEPS-net.br0}
;;
esac
}
send_command() {
local command="socat -u - UNIX-CONNECT:${MONITOR}"
type -p nc6 > /dev/null && command="nc6 -U ${MONITOR} --send-only"
echo "$@" | ${command} > /dev/null 2>&1
}
sanity_check() {
if [ "${VMNAME}" = "${SVCNAME}" ]; then
eerror "You have to create an init script for each vm:"
eerror " ln -s vm /etc/init.d/vm.vmname"
return 1
fi
DISKIMAGE=$(readlink -f "${DISKIMAGE}")
if [ ! -f "${DISKIMAGE}" -a ! -b "${DISKIMAGE}" ]; then
eerror "couldn't find \$DISKIMAGE '$DISKIMAGE'"
return 1;
fi
discern_vm_binary || return 1
NIC_TYPE=${NIC_TYPE:-nat}
discern_foreground || return 1
}
start_pre() {
checkpath -d --owner root:root --mode 0644 "${PIDFILE%/*}" \
"${MONITOR%/*}"
}
start() {
sanity_check || return 1
local NIC_COMMAND=( -net "nic,model=${NIC_MODEL:-virtio},macaddr=${MACADDR}" -net )
if [ "${NIC_TYPE}" = "br" ]; then
ebegin "creating qtap ${QTAP:-(auto allocating one)}"
if [ -n "$QTAP" ]; then
qtap-manipulate create_specific "${QTAP}" -u "${DROP_USER}"
else
QTAP=$(qtap-manipulate create -u "${DROP_USER}")
if [ 0 != $? ]; then
eerror "failed to create qtap interface"
return 1
fi
fi
echo "${QTAP}" > ${QTAP_FILE}
eend $?
NIC_COMMAND[${#NIC_COMMAND[@]}]="tap,ifname=${QTAP},script=no"
elif [ "${NIC_TYPE}" = "none" ]; then
NIC_COMMAND=( -net none )
else
NIC_COMMAND[${#NIC_COMMAND[@]}]=user
fi
local ss_args=( )
local vm_args=( -daemonize )
if [ -n "${ENABLE_SDL}" ]; then
ss_args[${#ss_args[@]}]=--env
ss_args[${#ss_args[@]}]="DISPLAY=${ENABLE_SDL}"
ss_args[${#ss_args[@]}]=--env
local user_home=`getent passwd ${DROP_USER:-root} | cut -d: -f6`
ss_args[${#ss_args[@]}]="XAUTHORITY=$user_home/.Xauthority"
vm_args[${#vm_args[@]}]=-display
vm_args[${#vm_args[@]}]=sdl
elif [ -n "$VNC" ]; then
vm_args[${#vm_args[@]}]=-display
vm_args[${#vm_args[@]}]=vnc
vm_args[${#vm_args[@]}]="${VNC}"
else
vm_args[${#vm_args[@]}]=-display
vm_args[${#vm_args[@]}]=none
fi
ebegin "Starting ${VM_BINARY##*/} for ${VMNAME} ${FOREGROUND:+at ${FOREGROUND}}"
start-stop-daemon \
--start "${VM_BINARY}" \
--pidfile ${PIDFILE} \
"${ss_args[@]}" \
-- \
"${vm_args[@]}" \
-pidfile ${PIDFILE} -monitor unix:${MONITOR},server,nowait \
-runas ${DROP_USER} -name ${VMNAME} \
-drive file="${DISKIMAGE//,/,,}",if=${DRIVE_MODEL:-virtio},cache=${DRIVE_CACHE:-none} \
"${NIC_COMMAND[@]}" \
${DISABLE_KVM:---enable-kvm} \
${MEMORY:+-m ${MEMORY}} ${SMP:+-smp ${SMP}} ${OTHER_ARGS}
ret=$?
if [ "0" != "${ret}" -a -n "${QTAP}" ]; then
qtap-manipulate destroy ${QTAP}
fi
eend ${ret}
}
reboot() {
if [ ${VMNAME} = ${SVCNAME} ]; then
eerror "You have to create an init script for each vm:"
eerror " ln -s vm /etc/init.d/vm.vmname"
return 1
fi
ebegin "Rebooting ${VMNAME}"
send_command system_reset
eend $?
}
stop() {
sanity_check || return 1
ebegin "Powering off ${VMNAME}"
send_command system_powerdown
eend $?
ebegin "waiting up to ${TIMEOUT:-60} seconds for it to die"
local pid
[ -s "${PIDFILE}" ] && pid=$(cat "${PIDFILE}")
if [ -z "$pid" ]; then
eerror "Couldn't find stored pid at '$PIDFILE'; user will have to manually kill kvm"
eerror "Will attempt to destroy qtap despite."
eend 1
else
local ret=1
for x in $(seq 0 ${TIMEOUT:-60}); do
if kill -0 "${pid}" > /dev/null 2>&1; then
sleep 1s
continue
fi
ret=0
break
done
eend $ret
fi
ebegin "Stopping ${VM_BINARY##*/} for ${VMNAME}"
start-stop-daemon --stop "${VM_BINARY}" \
--user "${DROP_USER}" \
--pidfile "${PIDFILE}" \
--quiet
eend $?
local qtap
[ -s "${QTAP_FILE}" ] && qtap=$(cat "${QTAP_FILE}")
if [ -n "$qtap" ]; then
ebegin "destroying qtap ${qtap}"
qtap-manipulate destroy ${qtap}
eend $?
fi
}
|